阅读说明：本技术 药水液位监控方法以及药水定量添放装置 (Liquid medicine level monitoring method and liquid medicine quantitative adding and placing device ) 是由 时越 周爱明 闵远勇 刘小文 夏少林 于 2021-06-30 设计创作，主要内容包括：本申请提供一种药水液位监控方法以及药水定量添放装置。所述方法包括获取液位感应管的液位电通断值；将所述液位电通断值与预设通断值进行液位差补处理,得到液感差值,其中,所述预设通断值对应于第一感测液位；根据所述液感差值调整液位感应管的伸缩状态,以调节所述液位感应管的液位感测高度。在液位上升或者下降时,液位感应管的液位电通断值发生变化,液感差值同时将一起发生变化,此时控制液位感应管的伸缩,便于将液位感应管的液位感测位置从第一感测液位调整为第二感测液位,实现了一个液位感应管对不同感测液位的自动调节,使得一个液位感应管充当多个液位感应管,不仅降低了成本,而且便于调整液位感应管的感测液位。(The application provides a liquid medicine level monitoring method and a liquid medicine quantitative adding device. The method comprises the steps of obtaining a liquid level electricity on-off value of a liquid level induction pipe; carrying out liquid level difference compensation processing on the liquid level electricity on-off value and a preset on-off value to obtain a liquid sensing difference value, wherein the preset on-off value corresponds to a first sensing liquid level; and adjusting the telescopic state of the liquid level sensing pipe according to the liquid sensing difference value so as to adjust the liquid level sensing height of the liquid level sensing pipe. When the liquid level rises or descends, the liquid level electricity break-make value of liquid level induction pipe changes, the liquid is felt the difference and will be changed together simultaneously, control the flexible of liquid level induction pipe this moment, be convenient for adjust the liquid level sensing position of liquid level induction pipe for second sensing liquid level from first sensing liquid level, a liquid level induction pipe has been realized to the automatically regulated of different sensing liquid levels, make a liquid level induction pipe act as a plurality of liquid level induction pipes, not only the cost is reduced, and be convenient for adjust the sensing liquid level of liquid level induction pipe.)

1. A method of monitoring a liquid level of a liquid medication, comprising:

acquiring a liquid level electricity on-off value of a liquid level induction pipe;

carrying out liquid level difference compensation processing on the liquid level electricity on-off value and a preset on-off value to obtain a liquid sensing difference value, wherein the preset on-off value corresponds to a first sensing liquid level;

and adjusting the telescopic state of the liquid level sensing pipe according to the liquid sensing difference value so as to adjust the liquid level sensing height of the liquid level sensing pipe.

2. The method for monitoring the liquid level of liquid medicine according to claim 1, wherein the step of obtaining the liquid level electrical on-off value of the liquid level sensing tube comprises the following steps:

acquiring a liquid sensing signal of a contact surface of the liquid level sensor and liquid medicine;

and acquiring the liquid level electricity on-off value according to the liquid sensing signal.

3. The liquid medicine level monitoring method according to claim 1, wherein the liquid level difference compensation processing is performed on the liquid level electricity on-off value and a preset on-off value to obtain a liquid sensation difference value, and the method comprises the following steps:

carrying out weight compensation processing on the liquid level power on-off value and the preset on-off value to obtain a first on-off value and a second on-off value;

and carrying out differential amplification processing on the first on-off value and the second on-off value to obtain the liquid sensation difference value.

4. The method for monitoring the liquid level of a liquid medicine according to claim 1, wherein the adjusting the telescopic state of the liquid level sensing tube according to the liquid level difference comprises:

detecting whether the liquid sensation difference value is matched with a preset liquid difference value or not;

and when the liquid sensation difference value is matched with the preset liquid difference value, adjusting the telescopic direction of the liquid level induction pipe according to the liquid level electric on-off value.

5. The method of claim 4, wherein the detecting whether the level difference matches a predetermined level difference comprises:

detecting whether the liquid sensation difference value is equal to 0;

when the liquid sensation difference value is matched with the preset liquid difference value, the telescopic direction of the liquid level induction pipe is adjusted according to the liquid level electric on-off value, and the method comprises the following steps:

when the liquid sensation difference value is equal to 0, detecting whether the liquid level electricity on-off value is equal to 0 or not;

and when the liquid level electricity on-off value is equal to 0, adjusting the telescopic state of the liquid level induction pipe to be a contraction state so as to enable the liquid level induction pipe to rise to a second sensing liquid level.

6. The method for monitoring the liquid level of a liquid medicine according to claim 5, wherein the adjusting the telescopic state of the liquid level sensing tube to a contracted state comprises:

acquiring the liquid level rising rate of the liquid medicine;

adjusting a rate of contraction of the liquid level sensing tube to be greater than the rate of liquid level rise.

7. A liquid medicine quantitative adding device is characterized by comprising:

a dosing box for filling with a liquid medicine;

the liquid medicine adding assembly comprises a liquid inlet pipe, a liquid outlet pipe and a liquid level sensing pipe, the liquid inlet pipe and the liquid outlet pipe are communicated with the quantifying box, the quantifying box is provided with a liquid level through hole, the liquid level sensing pipe penetrates through the liquid level through hole, part of the liquid level sensing pipe is movably telescopic in the quantifying box, and the liquid level sensing pipe is used for sensing the liquid level of the liquid medicine in the quantifying box;

the liquid level control main board is positioned outside the quantitative box, the control end of the liquid level control main board is connected with the liquid level sensing tube so as to control the liquid level sensing tube to stretch in the quantitative box, and the liquid level control main board is used for acquiring the liquid level electric on-off value of the liquid level sensing tube; the liquid level control main board is further used for carrying out liquid level difference compensation processing on the liquid level electricity on-off value and a preset on-off value to obtain a liquid sensing difference value, wherein the preset on-off value corresponds to a first sensing liquid level; the liquid level control mainboard is also used for adjusting the telescopic state of the liquid level induction pipe according to the liquid sensing difference value so that a liquid level sensor of the liquid level induction pipe can stretch to a second sensing liquid level within a preset time.

8. The quantitative liquid medicine adding and placing device according to claim 7, wherein the liquid level sensing tube comprises a first telescopic tube, a second telescopic tube, a liquid level sensor and an air pump tube, the first telescopic tube is movably sleeved with the second telescopic tube, the first telescopic tube is arranged in the liquid level through hole in a penetrating way, the second telescopic tube is arranged in the quantitative box, the second telescopic tube is connected with the liquid level sensor, the air pump tube is communicated with the first telescopic tube and the second telescopic tube, the air pump tube is connected with a liquid level air pump, and the liquid level air pump is connected with the control end of the liquid level control mainboard.

9. The quantitative liquid medicine adding device according to claim 7, wherein the quantitative box has a scale surface for calibrating the volume of liquid medicine in the quantitative box, the quantitative liquid medicine adding device further comprises a liquid level correction pipe and a correction solenoid valve, the liquid level correction pipe is communicated with the quantitative box, the liquid level correction pipe is located at the bottom of the quantitative box, the correction solenoid valve is connected with the liquid level correction pipe, and the correction solenoid valve is used for controlling the on-off of the liquid level correction pipe to discharge the liquid medicine with a quantitative volume.

10. The quantitative liquid medicine adding and discharging device according to claim 7, wherein the quantitative box comprises a box body and a box bottom inclined block, the liquid outlet pipe is connected with the bottom of the box body, the box bottom inclined block is located in the box body, and the inclined surface of the box bottom inclined block is inclined towards the connection position of the liquid outlet pipe and the quantitative box.

Technical Field

The invention relates to the technical field of automatic liquid medicine adding, in particular to a liquid medicine liquid level monitoring method and a liquid medicine quantitative adding device.

Background

Along with the mature technology of the printed circuit board, the integration degree of electronic components is higher and higher, so that a plurality of circuits can be conveniently assembled on a smaller circuit board, and the printing cost of the circuit board is effectively reduced. In the production flow to printed circuit board, need use various liquid medicines, the stability of liquid medicine is crucial in the manufacturing process of printed circuit board, reaches the set condition with various liquid medicines alone or after mixing according to the manufacturing demand, and traditional mode is through adding quantitative box automatically, is connected with oral siphon, outlet pipe and liquid level system response stick in a fixed cavity box, and automatic when producing the product of different specification types add can.

However, traditional liquid level system response stick usually needs three or more, mainly be high liquid level response stick, low liquid level response stick and standard liquid level response stick, high liquid level response stick is used for placing the liquid medicine too much, low liquid level response stick is used for placing the liquid medicine too little, standard liquid level response stick is as the quantitative standard of liquid medicine, make the manufacturing cost who adds quantitative box voluntarily rise, and, the liquid level height that the required liquid level of every kind of liquid medicine system response stick is different, thereby need to control the response stick to a plurality of liquid levels, still need artifical manual adjustment, confirm its feasibility repeatedly, staff's operation easily makes mistakes during numerous and diverse adjustment.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a liquid medicine level monitoring method and a liquid medicine quantitative adding device, which are capable of reducing cost and facilitating adjustment of the sensing liquid level of a liquid level sensing pipe.

The purpose of the invention is realized by the following technical scheme:

a method of monitoring a liquid level of a liquid medication, the method comprising:

acquiring a liquid level electricity on-off value of a liquid level induction pipe;

carrying out liquid level difference compensation processing on the liquid level electricity on-off value and a preset on-off value to obtain a liquid sensing difference value, wherein the preset on-off value corresponds to a first sensing liquid level;

and adjusting the telescopic state of the liquid level sensing pipe according to the liquid sensing difference value so as to adjust the liquid level sensing height of the liquid level sensing pipe.

In one embodiment, the obtaining of the level electrical on-off value of the level sensing tube includes: acquiring a liquid sensing signal of a contact surface of the liquid level sensor and liquid medicine; and acquiring the liquid level electricity on-off value according to the liquid sensing signal.

In one embodiment, the performing liquid level difference compensation on the liquid level electrical on-off value and a preset on-off value to obtain a liquid level difference value includes: carrying out weight compensation processing on the liquid level power on-off value and the preset on-off value to obtain a first on-off value and a second on-off value; and carrying out differential amplification processing on the first on-off value and the second on-off value to obtain the liquid sensation difference value.

In one embodiment, the adjusting the telescopic state of the liquid level sensing pipe according to the liquid level difference value comprises: detecting whether the liquid sensation difference value is matched with a preset liquid difference value or not; and when the liquid sensation difference value is matched with the preset liquid difference value, adjusting the telescopic direction of the liquid level induction pipe according to the liquid level electric on-off value.

In one embodiment, the detecting whether the liquid level difference value matches a preset liquid level difference value includes: detecting whether the liquid sensation difference value is equal to 0; when the liquid sensation difference value is matched with the preset liquid difference value, the telescopic direction of the liquid level induction pipe is adjusted according to the liquid level electric on-off value, and the method comprises the following steps: when the liquid sensation difference value is equal to 0, detecting whether the liquid level electricity on-off value is equal to 0 or not; and when the liquid level electricity on-off value is equal to 0, adjusting the telescopic state of the liquid level induction pipe to be a contraction state so as to enable the liquid level induction pipe to rise to a second sensing liquid level.

In one embodiment, the adjusting the telescopic state of the liquid level sensing tube to a contracted state includes: acquiring the liquid level rising rate of the liquid medicine; adjusting a rate of contraction of the liquid level sensing tube to be greater than the rate of liquid level rise.

A liquid medicine dosing device comprising: the quantitative box, the liquid medicine adding component and the liquid level control main board are arranged on the box body; the quantitative box is used for filling liquid medicine; the liquid medicine adding assembly comprises a liquid inlet pipe, a liquid outlet pipe and a liquid level sensing pipe, the liquid inlet pipe and the liquid outlet pipe are communicated with the quantifying box, the quantifying box is provided with a liquid level through hole, the liquid level sensing pipe penetrates through the liquid level through hole, part of the liquid level sensing pipe is movably telescopic in the quantifying box, and the liquid level sensing pipe is used for sensing the liquid medicine level in the quantifying box; the liquid level control main board is positioned outside the quantitative box, the control end of the liquid level control main board is connected with the liquid level sensing tube to control the liquid level sensing tube to stretch in the quantitative box, and the liquid level control main board is used for acquiring the liquid level electric on-off value of the liquid level sensing tube; the liquid level control main board is further used for carrying out liquid level difference compensation processing on the liquid level electricity on-off value and a preset on-off value to obtain a liquid sensing difference value, wherein the preset on-off value corresponds to a first sensing liquid level; the liquid level control mainboard is also used for adjusting the telescopic state of the liquid level induction pipe according to the liquid sensing difference value so that a liquid level sensor of the liquid level induction pipe can stretch to a second sensing liquid level within a preset time.

In one of them embodiment, the liquid level induction pipe includes first flexible pipe, the flexible pipe of second, level sensor and air pump pipe, first flexible pipe with the flexible pipe activity of second cup joints, first flexible pipe wear to locate in the liquid level through-hole, the flexible pipe of second is located in the ration box, the flexible pipe of second with level sensor connects, the air pump pipe with first flexible pipe and the flexible pipe of second all communicates, the air pump pipe is used for being connected with the liquid level air pump, the liquid level air pump with the control end of liquid level control mainboard is connected.

In one of them embodiment, the ration box has the scale surface, the scale surface is used for demarcating the liquid medicine capacity in the ration box, the device is added to liquid medicine ration still includes liquid level correction pipe and corrects the solenoid valve, liquid level correction pipe with ration box intercommunication, liquid level correction pipe is located the bottom of ration box, correct the solenoid valve with the liquid level correction union coupling, correct the solenoid valve and be used for controlling the break-make of liquid level correction pipe to emit the liquid medicine of ration volume.

In one embodiment, the quantitative box comprises a box body and a box bottom inclined block, the liquid outlet pipe is connected with the bottom of the box body, the box bottom inclined block is located in the box body, and the inclined surface of the box bottom inclined block inclines towards the connection position of the liquid outlet pipe and the quantitative box.

Compared with the prior art, the invention has at least the following advantages:

when the liquid level rises or descends, the liquid level electricity break-make value of liquid level induction pipe changes, the liquid is felt the difference and will be changed together simultaneously, control the flexible of liquid level induction pipe this moment, be convenient for adjust the liquid level sensing position of liquid level induction pipe for second sensing liquid level from first sensing liquid level, a liquid level induction pipe has been realized to the automatically regulated of different sensing liquid levels, make a liquid level induction pipe act as a plurality of liquid level induction pipes, not only the cost is reduced, and be convenient for adjust the sensing liquid level of liquid level induction pipe.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a flow chart of a method for monitoring a liquid level of a liquid medication in an embodiment;

fig. 2 is a schematic view of an internal structure of the quantitative liquid medicine adding device according to an embodiment.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention relates to a liquid level monitoring method for liquid medicine. In one embodiment, the liquid level monitoring method comprises the following steps: acquiring a liquid level electricity on-off value of a liquid level induction pipe; carrying out liquid level difference compensation processing on the liquid level electricity on-off value and a preset on-off value to obtain a liquid sensing difference value, wherein the preset on-off value corresponds to a first sensing liquid level; and adjusting the telescopic state of the liquid level sensing pipe according to the liquid sensing difference value so as to adjust the liquid level sensing height of the liquid level sensing pipe. When the liquid level rises or descends, the liquid level electricity break-make value of liquid level induction pipe changes, the liquid is felt the difference and will be changed together simultaneously, control the flexible of liquid level induction pipe this moment, be convenient for adjust the liquid level sensing position of liquid level induction pipe for second sensing liquid level from first sensing liquid level, a liquid level induction pipe has been realized to the automatically regulated of different sensing liquid levels, make a liquid level induction pipe act as a plurality of liquid level induction pipes, not only the cost is reduced, and be convenient for adjust the sensing liquid level of liquid level induction pipe.

Please refer to fig. 1, which is a flowchart illustrating a method for monitoring a liquid level of a liquid medicine according to an embodiment of the present invention. The liquid medicine level monitoring method comprises part or all of the following steps.

S100: and acquiring the liquid level electricity on-off value of the liquid level induction pipe.

In this embodiment, the liquid level induction pipe is used for the liquid level height of sensing liquid medicine in the ration box, the liquid level induction pipe alternates on the ration box, and the part is located in the ration box, the tip of liquid level induction pipe is provided with level sensor. When the ration box carries out liquid medicine and adds, along with the change of liquid medicine liquid level height, level sensor on the liquid level induction pipe will take place with the contact of liquid medicine or the condition that breaks away from, makes sensing circuit on the level sensor realizes the break-make, thereby makes the sensing signal that level sensor triggered changes, and then makes whether level sensor and the contact of liquid medicine liquid level convert the break-make of the signal of telecommunication that corresponds into, the height that the liquid medicine liquid level was located is convenient for accurately acquireed to whether follow-up the affirmation of being convenient for will carry out flexible regulation to liquid level induction pipe.

S200: and carrying out liquid level difference compensation processing on the liquid level electricity on-off value and a preset on-off value to obtain a liquid sensing difference value, wherein the preset on-off value corresponds to a first sensing liquid level.

In this embodiment, the liquid level electricity on-off value is the current contact state between liquid level sensor sensing and the liquid medicine of liquid level induction pipe, predetermine the on-off value and be the contact state that corresponds when liquid medicine contacts or breaks away from with level sensor when the assigned position. The liquid level electricity on-off value is the current electricity on-off state of the liquid level sensor, the preset on-off value is used as the standard electricity on-off state, the liquid level electricity on-off value and the preset on-off value are subjected to liquid level difference compensation processing, actually, the current electricity on-off state of the liquid level sensor is compared with the standard electricity on-off state, the difference degree between the current liquid level height of the liquid medicine and the height of the liquid level sensor is convenient to determine, and therefore whether the liquid medicine reaches the liquid level height of the liquid level sensor or not is convenient to determine subsequently. Therefore, after the liquid level difference compensation treatment is carried out on the liquid level electricity on-off value and the preset on-off value, the obtained difference value between the liquid level height of the liquid medicine and the height of the liquid level sensor, namely the liquid sensing difference value, is convenient for adjusting the telescopic length and the direction of the liquid level induction pipe subsequently according to the liquid sensing difference value. The preset on-off value corresponds to a first sensing liquid level, the first sensing liquid level is the height of the liquid level sensor, the first sensing liquid level is used for embodying the fact that liquid medicine reaches a specified liquid level, and the first sensing liquid level is used as the liquid level height when the liquid level sensor is in contact with or separated from the liquid medicine for the first time.

S300: and adjusting the telescopic state of the liquid level sensing pipe according to the liquid sensing difference value so as to adjust the liquid level sensing height of the liquid level sensing pipe.

In this embodiment, the liquid sensation difference value is used for representing a difference value between the current liquid level of the liquid medicine and the height of the liquid level sensor, that is, the liquid sensation difference value is a response value corresponding to the height difference between the current liquid level of the liquid medicine and the liquid level sensor. After the numerical value of the liquid sensing difference value is determined, the position of a liquid level sensor on the liquid level induction pipe is conveniently determined, so that whether the liquid level induction pipe needs to be subjected to height change or not is conveniently determined, the liquid level sensing height of the liquid level induction pipe is adjusted, and automatic adjustment of the liquid level sensing height of the liquid level induction pipe is achieved.

In each of the above-mentioned embodiments, when the liquid level rose or descended, the liquid level electricity break-make value of liquid level induction pipe changed, the difference value will be changed together simultaneously is felt to the liquid, the flexible of control liquid level induction pipe this moment, be convenient for adjust the liquid level sensing position of liquid level induction pipe for second sensing liquid level from first sensing liquid level, a liquid level induction pipe has been realized to the automatically regulated of different sensing liquid levels, make a liquid level induction pipe act as a plurality of liquid level induction pipes, the cost is not only reduced, and be convenient for adjust the sensing liquid level of liquid level induction pipe. Moreover, the liquid level of liquid medicine rises and descends once only to accomplish, will be until the highest liquid level when the liquid level rises promptly, will be until minimum liquid level when the liquid level descends, and wherein, the highest liquid level is high liquid level early warning height, and minimum liquid level is low liquid level early warning height, has ensured the early warning function to the height liquid level of liquid medicine, can also realize the altitude mixture control to the liquid level pipe.

In one embodiment, the obtaining of the level electrical on-off value of the level sensing tube includes: acquiring a liquid sensing signal of a contact surface of the liquid level sensor and liquid medicine; and acquiring the liquid level power on-off value according to the liquid sensing electric signal, wherein in the embodiment, the liquid level power on-off value of the liquid level sensing pipe is a numerical value corresponding to the power on-off state of the liquid level sensor, namely the liquid level power on-off value of the liquid level sensing pipe is an electric signal corresponding to the contact state of liquid medicine and the liquid level sensor. After the liquid sensing electric signals are obtained, the liquid sensing electric signals respond to the relation between the liquid level of the liquid medicine and the height of the liquid level sensor, the liquid sensing electric signals correspond to the conduction and the disconnection of the electric signals, so that the contact and the disconnection between the liquid medicine and the liquid level sensor are reflected by the liquid sensing electric signals, namely, when the liquid medicine is in contact with the liquid level sensor, the liquid sensing electric signals correspond to the conduction of the electric signals, when the liquid medicine is separated from the liquid level sensor, the liquid sensing electric signals correspond to the disconnection of the electric signals, the on-off of the electric signals correspond to different level values, and the liquid medicine is convenient to determine whether to reach the height of the liquid level sensor according to the liquid level electric on-off values.

In one embodiment, the performing liquid level difference compensation on the liquid level electrical on-off value and a preset on-off value to obtain a liquid level difference value includes: carrying out weight compensation processing on the liquid level power on-off value and the preset on-off value to obtain a first on-off value and a second on-off value; in this embodiment, the liquid level electrical on-off value is an electrical on-off value corresponding to whether the liquid level sensor is in contact with the liquid level or not, the preset on-off value is an electrical on-off value corresponding to when the liquid level reaches the height of the liquid level sensor, and since the liquid level electrical on-off value and the preset on-off value are both electrical on-off values based on the position of the liquid level sensor, when the position of the liquid level sensing tube is inclined, a certain error is easily caused in the height of the liquid level sensor, although the liquid level sensor finally returns to a vertical state along with the continuation of time. However, in order to reduce the height error of the liquid level sensing tube during tilting, the liquid level electrical on-off value and the preset on-off value need to be subjected to weight compensation processing, that is, under different tilting conditions, the liquid level electrical on-off value and the weight of the preset on-off value need to be subjected to correction compensation assignment, for example, the larger the tilting angle of the liquid level sensing tube is, the larger the correction compensation weight is, the more the liquid level electrical on-off value and the preset on-off value corresponding to the liquid level sensing tube are corrected to be normal values, so that the acquisition precision of the liquid level electrical on-off value and the preset on-off value is improved. And after the weight compensation processing is carried out on the liquid level electricity on-off value and the preset on-off value, an accurate first on-off value and a second on-off value are obtained, and the first on-off value and the second on-off value are correct on-off values at the moment, so that the current height of the liquid level induction pipe and the liquid medicine liquid level are accurately reflected. At this moment, the first on-off value and the second on-off value are subjected to differential amplification processing, namely the first on-off value and the second on-off value are subjected to difference and amplification processing, namely the first on-off value and the second on-off value are subjected to differential processing, so that the height difference between the current height of the liquid level sensing tube and the liquid level of liquid medicine is conveniently obtained, the difference between the first on-off value and the second on-off value is amplified in order to effectively reflect the difference degree of the height difference, the height difference between the current height of the liquid level sensing tube and the liquid level of liquid medicine is amplified, and the condition of the height difference between the liquid medicine and a liquid level sensor when the liquid medicine is at different liquid levels is conveniently known.

In one embodiment, the adjusting the telescopic state of the liquid level sensing pipe according to the liquid level difference value comprises: detecting whether the liquid sensation difference value is matched with a preset liquid difference value or not; when the liquid sensation difference value matches with the preset liquid difference value, the telescopic direction of the liquid level sensing tube is adjusted according to the liquid level electric on-off value, in the embodiment, the preset liquid difference value is an electric on-off difference value corresponding to the contact of the liquid level sensor when the liquid medicine is lifted to a specified position, and the specified position is the initial position of the liquid level sensor, namely the liquid medicine is set before the liquid medicine is added or discharged. When the liquid level of liquid medicine changes, detect according to right the liquid feel difference with the degree of matching between the default liquid difference, be convenient for confirm whether the current liquid level of liquid medicine reaches level sensor's initial height. The liquid sensing difference value is matched with the preset liquid difference value, at the moment, an electric break signal on the liquid level sensor changes, the fact that the liquid level of liquid medicine reaches the position flush with the liquid level sensor is indicated, the liquid level sensing tube stretches out and draws back, namely the length of the liquid level sensing tube needs to be adjusted, and therefore the liquid level sensing tube stretches out and draws back to the next liquid level sensing height. In addition, in this embodiment, the initial position of the liquid level sensor of the liquid level sensing tube is the first sensing liquid level, and when the lifting of the liquid medicine changes, the current position of the liquid level sensor is the new initial position, for example, when the liquid medicine has a transition between a rising state and a falling state, the position of the liquid level sensor at the end of the previous state is the first sensing liquid level.

Further, whether the liquid sensing difference value is matched with a preset liquid difference value or not is detected, and the method comprises the following steps: detecting whether the liquid sensation difference value is equal to 0; when the liquid sensation difference value is matched with the preset liquid difference value, the telescopic direction of the liquid level induction pipe is adjusted according to the liquid level electric on-off value, and the method comprises the following steps: when the liquid sensation difference value is equal to 0, detecting whether the liquid level electricity on-off value is equal to 0 or not; and when the liquid level electricity on-off value is equal to 0, adjusting the telescopic state of the liquid level induction pipe to be a contraction state so as to enable the liquid level induction pipe to rise to the second sensing liquid level. In this embodiment, the preset liquid level value is 0, that is, the standard detection result of the liquid level electrical on-off value and the preset on-off value is 0, that is, the liquid level of the liquid medicine reaches the liquid level difference value when reaching the liquid level sensor. When the liquid sensation difference value is detected to be equal to 0, the current liquid level of the liquid medicine and the liquid level sensor are located on the same horizontal plane, and at the moment, the liquid level power on-off value needs to be detected, namely whether the liquid level power on-off value is equal to 0 or not is detected, so that the state of the liquid level power on-off value before the current liquid level of the liquid medicine and the liquid level sensor are located on the same horizontal plane is detected, and the lifting state of the liquid level of the liquid medicine is also judged. The liquid level electricity on-off value is equal to 0, which indicates that the sensing electric signal of the liquid level sensor is at a low level before the current liquid level of the liquid medicine and the liquid level sensor are positioned at the same horizontal plane, namely the height of the liquid level sensor is greater than the liquid level of the liquid medicine, namely the liquid level of the liquid medicine is in a continuous rising state at the moment. Like this, continuously rise and with liquid level sensor when contacting, liquid level sensor is located at present first sensing liquid level, for the convenience the liquid level induction pipe acts as a plurality of induction pipes and uses, will the flexible state of liquid level induction pipe sets up to the shrink state, makes the length shrink of liquid level induction pipe, thereby makes liquid level sensor's position shifts up, is about to the liquid level sensor of liquid level induction pipe contracts to the height at second sensing liquid level place, this moment the liquid level induction pipe acts as the induction pipe of two different sensing height respectively around the shrink. In this embodiment, the liquid level induction pipe is low liquid level induction pipe, the first sensing liquid level when the level sensor of liquid level induction pipe begins is minimum liquid level, low liquid level early warning liquid level promptly, and second sensing liquid level is standard liquid level, the second sensing liquid level is the best liquid level when liquid medicine automatic addition, and the volume of this position liquid medicine reaches best solution volume, as the automatic reference liquid level that adds of liquid medicine, moreover, second sensing liquid level is higher than first sensing liquid level makes liquid level induction pipe regard as low liquid level induction pipe and standard liquid level induction pipe simultaneously, promptly liquid level induction pipe both is low liquid level induction pipe, also can be well liquid level induction pipe.

In another embodiment, the detecting whether the liquid level electrical on-off value is equal to 0 further includes: and when the liquid level electricity on-off value is larger than 0, adjusting the telescopic state of the liquid level induction pipe to be an extension state so as to enable the liquid level induction pipe to descend to the third sensing liquid level. The on-off value of the liquid level electricity is larger than 0, which indicates that before the current liquid level of the liquid medicine and the liquid level sensor are positioned at the same horizontal plane, the sensing electric signal of the liquid level sensor is at a high level, namely the height of the liquid level sensor is smaller than the liquid level of the liquid medicine, namely the liquid level of the liquid medicine is in a continuous descending state at the moment. Like this, at liquid medicine last decline and with when level sensor breaks away from, level sensor is located at present first sensing liquid level, for the convenience the liquid level induction pipe acts as a plurality of induction pipes and uses, will the flexible state of liquid level induction pipe sets up to the extension state, makes the length increase of liquid level induction pipe, thereby makes level sensor's position moves down, is about to the level sensor of liquid level induction pipe extends to the height at third sensing liquid level place, this moment the liquid level induction pipe acts as the induction pipe of two different sensing heights respectively around the extension. In this embodiment, the liquid level induction pipe is standard liquid level induction pipe, the first sensing liquid level when the level sensor of liquid level induction pipe begins is the standard liquid level, the highest liquid level when third sensing liquid level is liquid medicine automatic addition, and the volume of this position liquid medicine reaches the biggest solution volume, as the automatic high liquid level early warning liquid level that adds of liquid medicine, moreover, third sensing liquid level is higher than first sensing liquid level makes the liquid level induction pipe is as high liquid level induction pipe and standard liquid level induction pipe simultaneously, promptly the liquid level induction pipe both is high liquid level induction pipe, also can be well liquid level induction pipe.

Still further, the adjustment the flexible state of liquid level induction pipe is the shrink state, includes: acquiring the liquid level rising rate of the liquid medicine; adjusting a rate of contraction of the liquid level sensing tube to be greater than the rate of liquid level rise. In this embodiment, under the flexible state of liquid level induction pipe is the condition of shrink state, it is right the shrink rate of liquid level induction pipe adjusts, will the shrink rate adjustment of liquid level induction pipe is for being greater than liquid level rate of rise for the rising speed of the liquid level of liquid medicine is less than all the time the shrink rate of liquid level induction pipe, thereby makes before liquid level induction pipe shrinks to the second sensing liquid level, liquid medicine can not with the condition that breaks away from appears in level sensor, and liquid medicine separates with level sensor always promptly, has ensured the continuous shrink of liquid level induction pipe when liquid medicine rises to ensured at liquid medicine interpolation in-process, liquid level induction pipe liquid medicine first rises to second sensing liquid level.

In another embodiment, the adjusting the telescopic state of the liquid level sensing tube to an extended state includes: acquiring the liquid level descending rate of the liquid medicine; adjusting the rate of elongation of the liquid level sensing tube to be greater than the rate of liquid level descent. In this embodiment, under the flexible state of liquid level induction pipe is the condition of extension state, it is right the extension rate of liquid level induction pipe adjusts, will the extension rate adjustment of liquid level induction pipe is for being greater than liquid level rate of decline for the falling speed of the liquid level of liquid medicine is less than all the time the extension rate of liquid level induction pipe, thereby makes before liquid level induction pipe extends to the third sensing liquid level, liquid medicine always with level sensor contacts has ensured the continuous extension of liquid level induction pipe when liquid medicine descends to ensured at liquid medicine discharge in-process, liquid level induction pipe liquid medicine descends to third sensing liquid level earlier.

It is understood that, during the process of adding or discharging the liquid medicine, especially when the liquid level of the liquid medicine contacts or separates from the liquid level sensor, the telescopic state of the liquid level sensing tube changes, i.e. the liquid level of the liquid medicine extends or contracts, and in the above case, the liquid level of the liquid medicine continuously rises or falls until reaching the corresponding liquid level sensing height, and then stops. However, in the actual process of using the liquid medicine, the liquid medicine level change in the quantitative box may be formed by a plurality of lifting processes, that is, a plurality of lifting and descending processes of the liquid medicine level occur, for example, in the process of adding the liquid medicine, a part of the liquid medicine needs to be used, the liquid medicine is discharged by opening the water outlet pipe, and the liquid medicine level will descend at this time. If the liquid level of liquid medicine liquid level rises the in-process and has contacted this moment level sensor, then can regard as the liquid level induction pipe of low liquid level and well liquid level simultaneously, will be moved to second sensing liquid level by first sensing liquid level upward, move to the standard liquid level promptly from low liquid level upward, and this moment because liquid medicine need emit the part, the liquid medicine liquid level will move down, the liquid level induction pipe that originally has low liquid level warning effect will lose this function, can't carry out the early warning to the liquid medicine of low liquid level, lead to the condition that the evacuation appears in the liquid medicine in the ration box easily.

In order to avoid the above situation, that is, improve the performance of low liquid level early warning, the telescopic state of the liquid level sensing tube is adjusted according to the liquid level difference, and then the method further comprises the following steps:

acquiring the on-off running state of the liquid outlet pipe;

acquiring a liquid medicine outlet value according to the opening and closing operation state;

detecting whether the liquid medicine outlet value is matched with a preset liquid outlet value or not;

when the liquid medicine liquid outlet value is matched with the preset liquid outlet value, a reverse telescopic signal is sent to a monitoring system, so that the liquid level sensing pipe returns to the first sensing liquid level within the preset time.

In this embodiment, in the liquid medicine adding process, the opening and closing state of the liquid outlet pipe on the quantitative box needs to be monitored, and after the opening and closing operation state of the liquid outlet pipe is obtained, the opening and closing operation state is converted into a corresponding numerical value, namely, the liquid medicine liquid outlet value realizes the conversion and quantification of the opening and closing state of the liquid outlet pipe. And detecting whether the liquid medicine outlet value is matched with a preset liquid outlet value or not, and comparing the current opening and closing state of the liquid outlet pipe with a standard opening and closing state so as to determine the current running state of the liquid outlet pipe. The liquid level of the liquid medicine is matched with the preset liquid level, the liquid outlet pipe is in an open state at present, the probability that the liquid level of the liquid medicine descends at the moment is increased, the liquid level of the liquid medicine is reduced after the liquid medicine is triggered to contract the liquid level sensing pipe, a reverse telescopic signal is sent to a monitoring system at the moment, the telescopic mode of the liquid level sensing pipe is adjusted again, so that the liquid level sensing pipe returns to a first sensing liquid level within the preset time, the liquid level sensing pipe can return to the initial position within a short time, and the liquid level sensing pipe can reach a low liquid level early warning liquid level before the liquid level of the liquid medicine is lower than the first sensing liquid level, and the condition that early warning cannot be performed on the low liquid level is avoided. In this embodiment, the liquid medicine outflow value corresponds to two states, that is, the opening and closing states of the liquid outlet pipe, when the liquid outlet pipe is opened, the liquid medicine outflow value is greater than 0, and when the liquid outlet pipe is closed, the liquid medicine outflow value is less than 0, and whether the liquid medicine outflow value is matched with a preset outflow value is detected, that is, whether the liquid medicine outflow value is greater than 0 is detected, where the preset outflow value is 0.

Furthermore, after the liquid medicine rises first to trigger the liquid level sensing tube to move upwards, and then the liquid outlet tube is opened to discharge part of the liquid medicine, the liquid outlet rate of the liquid outlet tube is lower than the liquid inlet rate of the liquid inlet tube, and the liquid medicine liquid level in the quantitative box is still in the rising condition at the moment, but the liquid medicine slowly rises. In order to deal with the special situation, namely eliminate the misjudgment of the situation on the monitoring of the liquid level of the liquid medicine, the method for acquiring the opening and closing running state of the liquid outlet pipe comprises the following steps:

acquiring the liquid inlet rate of a liquid inlet pipe and the liquid outlet rate of a liquid outlet pipe;

carrying out rapid difference treatment on the liquid inlet rate and the liquid outlet rate to obtain a flow speed difference;

detecting whether the flow rate difference is greater than 0;

and when the flow speed difference is greater than 0, sending a telescopic speed reduction signal to a monitoring system so as to reduce the telescopic speed of the liquid level sensing pipe.

In this embodiment, feed liquor rate is liquid medicine rate of addition, feed liquor rate influences the ascending trend of liquid medicine liquid level, it emits speed for liquid medicine to go out liquid rate, it influences the descending trend of liquid medicine liquid level to go out liquid rate. After gathering liquid inlet rate and play liquid rate, be convenient for acquire the liquid medicine volume change condition in the ration box to be convenient for know the lift condition of liquid medicine liquid level. And carrying out rapid difference processing on the liquid inlet rate and the liquid outlet rate, and comparing the addition amount and the discharge amount of the liquid medicine in unit time, thereby determining the volume change trend of the liquid medicine in the quantitative box, namely determining whether the volume of the liquid medicine is increased or decreased, namely determining whether the liquid level of the liquid medicine is slowly increased or slowly decreased. When the flow speed difference is larger than 0, the liquid inlet speed of the liquid inlet pipe is larger than the liquid outlet speed of the liquid outlet pipe, namely the liquid medicine inlet amount is larger than the liquid medicine outlet amount, namely the adding volume of the liquid medicine in unit time is larger than the discharging volume of the liquid medicine, and the liquid medicine volume in the quantitative box is slowly increased, so that the liquid medicine level is slowly increased. In this case, send flexible deceleration signal to monitored control system to reduce the flexible speed of liquid level induction pipe, make the interval between level sensor and the liquid medicine liquid level keep in presetting the distance, thereby make before the liquid level induction pipe removes to the second sensing liquid level and the interval between the liquid medicine liquid level is fixed. Therefore, when the flow speed difference is less than 0, the liquid level sensing pipe can quickly return to the first sensing liquid level by increasing the extending speed of the liquid level sensing pipe, namely, the liquid level sensing pipe can be quickly reset to the initial position after the liquid level of the liquid medicine is changed into descending from ascending.

The application also provides a liquid medicine quantitative adding device, which is realized by adopting the liquid medicine liquid level monitoring method in any embodiment. In one embodiment, the liquid medicine quantitative adding device is provided with a functional module for realizing the corresponding steps of the liquid medicine level monitoring method. The liquid medicine level monitoring method of any one of the embodiments can be realized when the liquid medicine quantitative adding device works.

Please refer to fig. 2, which is a schematic structural diagram of a liquid medicine quantitative adding device according to an embodiment of the present invention. The quantitative liquid medicine adding device 10 of an embodiment includes a quantitative box 100, a liquid medicine adding assembly 200, and a liquid level control main board (not shown). The dosing box 100 is used for filling with a liquid medicine. The liquid medicine adding assembly 200 comprises a liquid inlet pipe 210, a liquid outlet pipe 220 and a liquid level sensing pipe 230. The liquid inlet pipe 210 and the liquid outlet pipe 220 are both communicated with the quantitative box 100. The quantitative box 100 is provided with a liquid level through hole 102. The liquid level sensing tube 230 is disposed through the liquid level through hole 102, and a part of the liquid level sensing tube 230 is movably extended and retracted in the quantitative box 100, and the liquid level sensing tube 230 is used for sensing the liquid level of the liquid medicine in the quantitative box 100. The liquid level control main board is located outside the quantifying box 100, a control end of the liquid level control main board is connected with the liquid level sensing tube 230 so as to control the liquid level sensing tube 230 to stretch in the quantifying box 100, and the liquid level control main board is used for acquiring a liquid level electric on-off value of the liquid level sensing tube 230; the liquid level control main board is further used for carrying out liquid level difference compensation processing on the liquid level electricity on-off value and a preset on-off value to obtain a liquid sensing difference value, wherein the preset on-off value corresponds to a first sensing liquid level; the liquid level control main board is further configured to adjust a telescopic state of the liquid level sensing pipe 230 according to the liquid level difference value, so that the liquid level sensor of the liquid level sensing pipe 230 is telescopic to a second sensing liquid level within a preset time.

In this embodiment, when the liquid level of the liquid medicine in the ration box 100 rises or descends, the liquid level electricity on-off value of liquid level induction pipe 230 changes, the liquid is felt the difference and will be changed together simultaneously, level control mainboard control liquid level induction pipe 230's flexible this moment, be convenient for adjust liquid level induction pipe 230's liquid level sensing position from first sensing liquid level to second sensing liquid level, a liquid level induction pipe 230 has been realized to the automatically regulated of different sensing liquid levels, make a liquid level induction pipe 230 act as a plurality of liquid level induction pipes 230, the cost is not only reduced, and be convenient for adjust liquid level induction pipe 230's sensing liquid level. And, the liquid level control mainboard can have wireless module for carry out wireless connection with the liquid level induction pipe, realize control signal's transmission.

In one embodiment, referring to fig. 2, the liquid level sensing tube 230 includes a first telescopic tube 232, a second telescopic tube 234, a liquid level sensor 236 and an air pump tube 238, the first telescopic tube 232 is movably sleeved with the second telescopic tube 234, the first telescopic tube 232 is inserted into the liquid level through hole 102, the second telescopic tube 234 is located in the quantitative box 100, the second telescopic tube 234 is connected with the liquid level sensor 236, the air pump tube 238 is communicated with both the first telescopic tube 232 and the second telescopic tube 234, the air pump tube 238 is used for being connected with a liquid level air pump, and the liquid level air pump is connected with a control end of the liquid level control main board. In this embodiment, the first extension tube 232 and the second extension tube 234 are sleeved with each other, for example, the first extension tube 232 is clamped in the liquid level through hole 102, the second extension tube 234 is sleeved in the first extension tube 232, that is, the inner wall of the first extension tube 232 contacts with the outer wall of the second extension tube 234, and a portion of the second extension tube 234 slides in the first extension tube 232, so that the second extension tube 234 changes its position relative to the first extension tube 232, and the liquid level sensing tube 230 has a length-adjustable extension function, similar to a pneumatic extension tube. The liquid level sensor 236 is connected to an end of the second extension tube 234 away from the first extension tube 232, the liquid level sensor 236 is movably disposed in the quantitative box 100, the liquid level sensor 236 is used for sensing the liquid level of the liquid medicine, and the liquid level sensor 236 adjusts the position along with the second extension tube 234. The air pump pipe 238 and the control end of the liquid level control main board control the air blowing and sucking amount of the air pump pipe 238 according to the sensing condition of the liquid level sensor 236 on the liquid level of the liquid medicine, that is, control the air volume of the air pump pipe 238 in the first extension pipe 232 and the second extension pipe 234, so as to facilitate the movement of the second extension pipe 234 on the first extension pipe 232 and further facilitate the extension and retraction control of the liquid level sensing pipe 230. In this embodiment, the setting of the first sensing liquid level is set according to a preset on-off value, and the preset on-off value is a value built in the monitoring system, and the first sensing liquid level can be changed by modifying, or the first sensing liquid level is changed by adjusting the gas blowing and sucking amount of the air pump pipe 238 on the liquid level sensing pipe 230.

In one embodiment, referring to fig. 2, the quantitative box 100 has a scale surface 110, the scale surface 110 is used for calibrating the volume of the liquid medicine in the quantitative box 100, the device 10 further includes a liquid level correction tube 300 and a correction solenoid valve 400, the liquid level correction tube 300 is communicated with the quantitative box 100, the liquid level correction tube 300 is located at the bottom of the quantitative box 100, the correction solenoid valve 400 is connected to the liquid level correction tube 300, and the correction solenoid valve 400 is used for controlling the on/off of the liquid level correction tube 300 to discharge a liquid medicine with a quantitative volume. The liquid level correction pipe 300 is communicated with the quantitative box 100, the installation position of the liquid level correction pipe 300 is close to that of the liquid outlet pipe 220, namely, the liquid level correction pipe 300 is also connected with the bottom of the quantitative box 100, and liquid medicine automatically flows out after the correction electromagnetic valve 400 is opened under the action of the gravity of the liquid medicine. Through right correct solenoid valve 400 open and close the setting of interval time, be convenient for confirm through the volume of the liquid medicine that pipe 300 flowed out is corrected to the liquid level, and the liquid medicine liquid level is in scale on scale surface 110 will change equally, through the comparison to these two variable quantities, thereby be convenient for confirm whether the scale on scale surface 110 is accurate, and then be convenient for correct the precision of the scale on scale surface 110, in order to improve the precision of the scale on scale surface 110. In this embodiment, the liquid inlet pipe 210 and the liquid outlet pipe 220 are respectively connected with an electromagnetic valve to control the opening and closing of the liquid inlet pipe 210 and the liquid outlet pipe 220.

In one embodiment, referring to fig. 2, the quantitative box 100 includes a box body 120 and a box bottom incline block 130, the liquid outlet pipe 220 is connected to the bottom of the box body 120, the box bottom incline block 130 is located in the box body 120, and the incline surface of the box bottom incline block 130 inclines toward the connection position of the liquid outlet pipe 220 and the quantitative box 100. In this embodiment, the inclined surface of the box bottom inclined block 130 facilitates liquid medicine gathering, i.e. gathering to the position of the liquid outlet pipe 220, and moreover, under the inclined action of the inclined surface, the gathering rate of the liquid medicine towards the liquid outlet pipe 220 is increased, so that the liquid medicine is conveniently and rapidly led out.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.