阅读说明：本技术 一种输液监控仪基于六轴传感器检测倾斜及跌落状态的方法 (Method for detecting inclination and falling state of infusion monitor based on six-axis sensor ) 是由 吴西明 安康 钱兆俊 牛玉良 于 2021-10-18 设计创作，主要内容包括：本发明提供了一种输液监控仪基于六轴传感器检测倾斜及跌落状态的方法,包括如下步骤：步骤1：六轴传感器分别获取输液监控仪处于垂直状态下的姿态角和水平状态的姿态角；步骤2：六轴传感器获取到的在高度H1和H2下跌落地面的加速度的平均值；步骤3：输液监控仪放置在输液架上,六轴传感器实时获取姿态角和垂直方向加速度；步骤4：运用姿态角倾斜状态判别公式,在步骤1的结果上判别姿态角是否处于倾斜状态,确定是否启动倾斜预警模块；步骤5：运用加速度跌落状态判别公式,在步骤2的结果上判别加速度是否处于跌落状态,确定是否启动跌落预警模块。本申请通过六轴传感器获取姿态角和垂直加速度来判定是否发生倾斜或跌落,进而进行预警,安全可靠。(The invention provides a method for detecting inclination and falling states of an infusion monitor based on a six-axis sensor, which comprises the following steps: step 1: the six-axis sensor respectively acquires an attitude angle of the infusion monitor in a vertical state and an attitude angle of the infusion monitor in a horizontal state; step 2: the average value of the accelerations of the falling floor surfaces at the heights H1 and H2 acquired by the six-axis sensor; and step 3: the infusion monitoring instrument is placed on an infusion support, and the six-axis sensor acquires an attitude angle and vertical direction acceleration in real time; and 4, step 4: judging whether the attitude angle is in an inclined state or not on the result of the step 1 by applying an attitude angle inclined state judgment formula, and determining whether an inclination early warning module is started or not; and 5: and (3) judging whether the acceleration is in a falling state or not on the result of the step (2) by applying an acceleration falling state judgment formula, and determining whether a falling early warning module is started or not. This application acquires attitude angle and vertical acceleration through six sensors and judges whether slope or fall, and then carries out the early warning, safe and reliable.)

1. A method for detecting the inclination and falling state of an infusion monitor based on a six-axis sensor is characterized by comprising the following steps:

step 1: the six-axis sensor is fixedly arranged on the infusion monitor and respectively adjusts the infusion monitor to be in a vertical state and a horizontal state, and respectively acquires an attitude angle omega of the infusion monitor in the vertical state_HAttitude angle ω of the sum horizontal state_LThe attitude angle ω in the vertical state_HAnd attitude angle ω in the horizontal state_LNumber ofThe data is stored in the processing module;

step 2: placing the infusion monitor at different heights H1 and H2, respectively carrying out n times of tests to enable the infusion monitor to freely fall under the condition of not applying external force, and respectively recording the accelerations a of the six-axis sensor obtained by falling to the ground under the heights H1 and H2_h1iAnd a_h2iI is 1,2, … …, n, and averages the accelerations of the fall on the ground at heights H1 and H2Andthe data of (a) is stored in the processing module;

and step 3: the infusion monitoring instrument is placed on an infusion support, and the six-axis sensor sends data of the attitude angle omega and the vertical direction acceleration a to the processing module in real time;

and 4, step 4: the processing module judges whether the attitude angle omega is in an inclined state or not by using an attitude angle inclined state judging formula, and starts an inclination early warning module when the real-time attitude angle omega is in the inclined state according to a judging result;

and 5: the processing module judges whether the acceleration a is in a falling state or not by applying an acceleration falling state judging formula, and starts the falling early warning module when the judging result is that the acceleration a is in the falling state.

2. The method for detecting the inclined and falling states of the infusion monitor based on the six-axis sensor as claimed in claim 1, wherein the attitude angle inclined state discrimination formula in the step 4 is as follows:

ω＞ω_H+1/2|ω_H+ω_L| (1)

ω＜ω_H-1/2|ω_H-ω_L| (2)

when either formula (1) or formula (2) satisfies either formula, it is determined that the real-time attitude angle ω is in an inclined state.

3. The method for detecting the inclination and the falling state of the infusion monitoring instrument based on the six-axis sensor as claimed in claim 2, wherein the acceleration falling state discrimination formula is as follows:

when the formula (3) is satisfied, the judgment result is that the acceleration a is in a falling state, wherein H is the placing height of the infusion monitor in the real-time monitoring process.

4. The method for detecting the inclination and falling state of the infusion monitor based on the six-axis sensor as claimed in claim 1, wherein the data in the processing module is communicated with the base station by lora and is connected to the cloud server by the base station Ethernet, the cloud server is communicated with the PDA adapted to the infusion monitor, the infusion device is controlled by the cloud server and the PDA, and the state of the device and the collected information are fed back to the PDA to form an intelligent closed loop.

5. The method for detecting the inclination and falling state of the infusion monitor based on the six-axis sensor as claimed in claim 1, wherein the starting of the inclination warning module further comprises the step that the processing module judges the degree of difference of the attitude angle changes at different time points based on a dynamic discrimination formula to determine whether to start the inclination warning module.

6. The method for detecting the inclination and falling state of the infusion monitor based on the six-axis sensor as claimed in claim 5, wherein the dynamic discrimination formula is as follows:

wherein, ω is₁、ω₂And ω₃Are respectively shown at t₁Time t₂Time t and₃the real-time attitude angle at the moment, k represents the deviation difference threshold value in unit time and is a constant,

and when 2 or 3 of the formula (4), the formula (5) and the formula (6) are simultaneously established, starting the inclination early warning module.

7. The method as claimed in claim 1, wherein after the tilt warning module is activated, the processing module locks the dropper passing through the infusion monitor while the infusion monitor alarms, so as to prevent the dropping liquid from dropping.

8. The method as claimed in claim 1, wherein after the drop pre-warning module is activated, the processing module locks the dropper passing through the infusion monitor to prevent the dropping liquid from dropping.

9. The method of claim 1, wherein the activation of the fall warning module further comprises a chip-based fall transient acceleration determination.

10. The method for detecting the inclination and the falling state of the infusion monitor based on the six-axis sensor as claimed in claim 9, wherein the chip falling instantaneous acceleration determination standard is as follows: and a is in the range of [8g (1- &),8g (1+ &) ], starting the falling early warning module, wherein & is the allowable difference degree and is a constant, 0 & lt & 1, and g is the gravity acceleration.

Technical Field

The invention relates to the technical field of infusion monitoring instruments, in particular to a method for detecting inclination and falling states of an infusion monitoring instrument based on a six-axis sensor.

Background

Intravenous infusion is one of the most common clinical treatments and is a common drug delivery treatment technique used in the care profession. An infusion monitor is an automatic infusion device for controlling the dropping speed, opening and stopping states of an infusion apparatus, is usually a mechanical or electronic control device, and achieves the purpose of controlling the infusion speed by acting on an infusion catheter. Is often used in situations where strict control of the amount of infusion and drug is required, such as in applications of boosting drugs, antiarrhythmic drugs, intravenous infusion or intravenous anesthesia for infants. Clinical use is becoming more and more common because of its safety and convenience.

However, if the patient is asleep or falls carelessly to cause abnormal infusion, certain potential safety hazard is brought.

Disclosure of Invention

The application provides a method for detecting inclination and falling states of an infusion monitor based on a six-axis sensor, solves the problem that the inclination and falling states of the infusion monitor cannot be monitored in the prior art, measures attitude angles and accelerations through the six-axis sensor, judges whether the infusion monitor is inclined or falls through an attitude angle inclination state discrimination formula and an acceleration falling state discrimination formula, and then performs early warning, safety and reliability.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a method for detecting the inclination and falling state of an infusion monitor based on a six-axis sensor comprises the following steps:

step 1: the six-axis sensor is fixedly arranged on the infusion monitor and respectively adjusts the infusion monitor to be in a vertical state and a horizontal state, and respectively acquires an attitude angle omega of the infusion monitor in the vertical state_HAttitude angle ω of the sum horizontal state_LThe attitude angle ω in the vertical state_HAnd attitude angle ω in the horizontal state_LThe data of (a) is stored in the processing module;

step 2: the infusion monitor is placed under different heights H1 and H2, and n times of tests are respectively carried out to enable the infusion monitor to freely fall under the condition of not applying external forceThe acceleration a of falling on the ground at the heights H1 and H2, respectively, acquired by the six-axis sensor is recorded_h1iAnd a_h2iI is 1,2, … …, n, and averages the accelerations of the fall on the ground at heights H1 and H2Andthe data of (a) is stored in the processing module;

and step 3: the infusion monitoring instrument is placed on an infusion support, and the six-axis sensor sends data of the attitude angle omega and the vertical direction acceleration a to the processing module in real time;

and 4, step 4: the processing module judges whether the attitude angle omega is in an inclined state or not by using an attitude angle inclined state judging formula, and starts an inclination early warning module when the real-time attitude angle omega is in the inclined state according to a judging result;

and 5: the processing module judges whether the acceleration a is in a falling state or not by applying an acceleration falling state judging formula, and starts the falling early warning module when the judging result is that the acceleration a is in the falling state.

Wherein, the attitude angle inclination state discrimination formula in the step 4 is as follows:

ω＞ω_H+1/2|ω_H+ω_L| (1)

ω＜ω_G-1/2|ω_H-ω_L| (2)

when either formula (1) or formula (2) satisfies either formula, it is determined that the real-time attitude angle ω is in an inclined state.

The acceleration falling state discrimination formula is as follows:

when the formula (3) is satisfied, the judgment result is that the acceleration a is in a falling state, wherein H is the placing height of the infusion monitor in the real-time monitoring process.

Preferably, the data in the processing module is communicated with a base station by lora and is connected to a cloud server through a base station Ethernet, the cloud server is communicated with a PDA matched with the infusion monitor, the infusion device is controlled by the cloud server and the PDA, and the state of the device and the collected information are fed back to the PDA to form an intelligent closed loop.

Further, the starting of the inclination early warning module further comprises a processing module which judges the variation difference degree of the attitude angles at different time points based on a dynamic discrimination formula to determine whether to start the inclination early warning module.

Wherein, the dynamic discrimination formula is:

wherein, ω is₁、ω₂And ω₃Are respectively shown at t₁Time t₂Time t and₃the real-time attitude angle at the moment, k represents the deviation difference threshold value in unit time and is a constant,

and when 2 or 3 of the formula (4), the formula (5) and the formula (6) are simultaneously established, starting the inclination early warning module.

Preferably, after the inclination early warning module is started, the processing module locks a dropper penetrating through the infusion monitor while the infusion monitor gives an alarm, so that the dropping liquid in the dropper cannot continuously drop.

Preferably, after the drop early warning module is started, the infusion monitor alarms, and the processing module locks a dropper penetrating through the infusion monitor with the processing module, so that dropping liquid in the dropper cannot continuously drop.

Further, the starting of the falling early warning module also comprises the judgment of the instantaneous acceleration of the falling of the chip.

The chip drop instantaneous acceleration judgment standard is as follows: and a is in the range of [8g (1- &),8g (1+ &) ], starting the falling early warning module, wherein & is the allowable difference degree and is a constant, 0 & lt & 1, and g is the gravity acceleration.

The invention has the beneficial effects that:

the application provides a method for detecting inclination and falling states of an infusion monitor based on a six-axis sensor, solves the problem that the inclination and falling states of the infusion monitor cannot be monitored in the prior art, measures attitude angles and accelerations through the six-axis sensor, judges whether the infusion monitor is inclined or falls through an attitude angle inclination state discrimination formula and an acceleration falling state discrimination formula, and then performs early warning, safety and reliability.

1. The invention provides an attitude angle inclination state discrimination formula which is used for discriminating the inclination state, is convenient for reminding users of equipment abnormality in time and makes adjustment in time.

2. The invention provides an acceleration falling state judgment formula, intelligently judges whether the equipment falls or not through the same-direction change relation between the falling acceleration and the height, and gives prompt and improves the use safety of the equipment.

3. The invention adopts lora to communicate with a base station and is connected to a cloud server through a base station Ethernet, the cloud server communicates with a PDA adapted to a transfusion monitoring instrument, a transfusion device is controlled by the cloud server and the PDA, and the state of the device and the collected information are also fed back to the PDA to form an intelligent closed loop. In which the PDA is generally managed by a nurse on duty when used in a hospital.

4. After the inclination early warning module and the falling early warning module are started, a dropper of the infusion monitor is locked, so that the dropping liquid in the dropper is prevented from continuously dropping, and the use safety of the device is improved.

5. The invention can also judge whether the inclination occurs or not through the change difference degree of the attitude angles at different time points, can be used together with the attitude angle inclination state judgment formula, can also be used independently, and provides a new idea for judging the inclination state of the infusion monitor.

6. The invention can also judge whether the falling occurs or not through the instantaneous acceleration of the falling of the chip, can be used together with an acceleration falling state judging formula, and can also be used independently to assist the judgment of the falling state of the infusion monitor.

Drawings

FIG. 1 is a flow chart of the steps provided by the present invention.

Detailed Description

The method for detecting the inclination and falling state of the infusion monitor based on the six-axis sensor is further described in detail with reference to the accompanying drawings and the specific implementation method.

Example 1

As shown in figure 1, the invention discloses a method for detecting the inclination and falling state of an infusion monitor based on a six-axis sensor, which is mainly applied to various hospitals and assists the infusion monitor to intelligently control infusion activities, and comprises the following steps:

step 1: the six-axis sensor is fixedly arranged on the infusion monitor and respectively adjusts the infusion monitor to be in a vertical state and a horizontal state, and respectively acquires an attitude angle omega of the infusion monitor in the vertical state_HAttitude angle ω of the sum horizontal state_LThe attitude angle ω in the vertical state_HAnd attitude angle ω in the horizontal state_LThe data of (a) is stored in the processing module;

step 2: placing the infusion monitor at different heights H1 and H2, respectively carrying out n times of tests to enable the infusion monitor to freely fall under the condition of not applying external force, and respectively recording the accelerations a of the six-axis sensor obtained by falling to the ground under the heights H1 and H2_h1iAnd a_h2iI is 1,2, … …, n, and averages the accelerations of the fall on the ground at heights H1 and H2Andthe data of (a) is stored in the processing module;

and step 3: the infusion monitoring instrument is placed on an infusion support, and the six-axis sensor sends data of the attitude angle omega and the vertical direction acceleration a to the processing module in real time;

and 4, step 4: the processing module judges whether the attitude angle omega is in an inclined state or not by using an attitude angle inclined state judging formula, and starts an inclination early warning module when the real-time attitude angle omega is in the inclined state according to a judging result;

and 5: the processing module judges whether the acceleration a is in a falling state or not by applying an acceleration falling state judging formula, and starts the falling early warning module when the judging result is that the acceleration a is in the falling state.

Among them, the six-axis sensor is mainly applied to the field of flight, such as the six-axis sensor MPU 6050. Pose calculations are typically performed using the Roll-pitch-yaw model. One common model for the current pose is to establish a coordinate system and use Roll to represent rotation about the X-axis, Pitch to represent rotation about the Y-axis, and Yaw to represent rotation about the Z-axis. Since the MPU6050 can acquire accelerations in three axial directions, while the earth gravity is long-standing and always vertically downward, the current attitude can be calculated with reference to the orientation of the gravitational acceleration with respect to the chip. For convenience, with the chip held face down, acceleration vectors a (x, y, z) are constructed with three axial accelerations as components. Assuming that the current chip is in a state of uniform linear motion, a should be perpendicular to the ground, i.e. pointing to the negative direction of the Z-axis, and the module length is | a | ═ g ═ sqrt { X ^2+ Y ^2+ Z ^2 }. If the chip (coordinate system) rotates, the negative Z-axis direction will no longer coincide with a, since the acceleration vector a is still vertically upward.

Step 1 and step 2 are typically measured by the equipment installer and then input to the processor. And 3-5, directly operating in a specific application scene.

Wherein, the attitude angle inclination state discrimination formula in the step 4 is as follows:

ω＞ω_H+1/2|ω_H+ω_L| (1)

ω＜ω_H-1/2|ω_H-ω_L| (2)

when either formula (1) or formula (2) satisfies either formula, it is determined that the real-time attitude angle ω is in an inclined state.

The acceleration falling state discrimination formula is as follows:

when the formula (3) is satisfied, the judgment result is that the acceleration a is in a falling state, wherein H is the placing height of the infusion monitor in the real-time monitoring process.

Preferably, the invention is an intelligent Internet of things product, so lora is adopted to communicate with a base station and is connected to a cloud server through a base station Ethernet, the server can communicate with a PDA, the infusion device is controlled by the server and the PDA, and the state of the device and the collected information are fed back to the PDA to form an intelligent closed loop. The operation, the state and the whole process of the infusion are strictly controllable, which is different from most of the same type equipment on the market, and only works in isolation, and the reliability cannot be guaranteed.

The invention provides an attitude angle inclination state discrimination formula which is used for discriminating the inclination state, is convenient for reminding users of equipment abnormality in time and makes adjustment in time.

The invention provides an acceleration falling state judgment formula, intelligently judges whether the equipment falls or not through the same-direction change relation between the falling acceleration and the height, and gives prompt and improves the use safety of the equipment.

The invention adopts lora to communicate with a base station and is connected to a cloud server through a base station Ethernet, the cloud server communicates with a PDA adapted to a transfusion monitoring instrument, a transfusion device is controlled by the cloud server and the PDA, and the state of the device and the collected information are also fed back to the PDA to form an intelligent closed loop. In which the PDA is generally managed by a nurse on duty when used in a hospital.

Example 2

Example 2 differs from example 1 only in that: and judging whether the infusion monitor is in an inclined state or not according to the difference condition of the dynamic change of the attitude angle.

The invention relates to a method for detecting inclination and falling states of an infusion monitor based on a six-axis sensor, which is mainly applied to various hospitals and assists the infusion monitor to intelligently control infusion activities, and comprises the following steps:

step 1: the six-axis sensor is fixedly arranged on the infusion monitor and respectively adjusts the infusion monitor to be in a vertical state and a horizontal state, and respectively acquires an attitude angle omega of the infusion monitor in the vertical state_HAttitude angle ω of the sum horizontal state_LThe attitude angle ω in the vertical state_HAnd attitude angle ω in the horizontal state_LThe data of (a) is stored in the processing module;

step 2: placing the infusion monitor at different heights H1 and H2, respectively carrying out n times of tests to enable the infusion monitor to freely fall under the condition of not applying external force, and respectively recording the accelerations a of the six-axis sensor obtained by falling to the ground under the heights H1 and H2_h1iAnd a_h2iI is 1,2, … …, n, and averages the accelerations of the fall on the ground at heights H1 and H2Andthe data of (a) is stored in the processing module;

and step 3: the infusion monitoring instrument is placed on an infusion support, and the six-axis sensor sends data of the attitude angle omega and the vertical direction acceleration a to the processing module in real time;

and 4, step 4: the processing module judges whether the attitude angle omega is in an inclined state or not by using an attitude angle inclined state judging formula, and starts an inclination early warning module when the real-time attitude angle omega is in the inclined state according to a judging result;

and 5: the processing module judges whether the acceleration a is in a falling state or not by applying an acceleration falling state judging formula, and starts the falling early warning module when the judging result is that the acceleration a is in the falling state.

The starting of the inclination early warning module also comprises a processing module which judges the change difference degree of the attitude angles at different time points based on a dynamic discrimination formula to determine whether to start the inclination early warning module.

Wherein, the dynamic discrimination formula is:

wherein, ω is₁、ω₂And ω₃Are respectively shown at t₁Time t₂Time t and₃the real-time attitude angle at the moment, k represents the deviation difference threshold value in unit time and is a constant,

and when 2 or 3 of the formula (4), the formula (5) and the formula (6) are simultaneously established, starting the inclination early warning module.

The invention can also judge whether the inclination occurs or not through the change difference degree of the attitude angles at different time points, can be used together with the attitude angle inclination state judgment formula, can also be used independently, and provides a new idea for judging the inclination state of the infusion monitor.

Example 3

Example 3 differs from example 1 only in that: whether the infusion monitor is in a falling state or not is judged through the instantaneous acceleration of the falling of the chip.

The invention relates to a method for detecting inclination and falling states of an infusion monitor based on a six-axis sensor, which is mainly applied to various hospitals and assists the infusion monitor to intelligently control infusion activities, and comprises the following steps:

step 1: the six-axis sensor is fixedly arranged on the infusion monitor and respectively adjusts the infusion monitor to be in a vertical state and a horizontal state, and the six-axis sensor respectively acquires that the infusion monitor is in the vertical stateAttitude angle ω of_HAttitude angle ω of the sum horizontal state_LThe attitude angle ω in the vertical state_HAnd attitude angle ω in the horizontal state_LThe data of (a) is stored in the processing module;

step 2: placing the infusion monitor at different heights H1 and H2, respectively carrying out n times of tests to enable the infusion monitor to freely fall under the condition of not applying external force, and respectively recording the accelerations a of the six-axis sensor obtained by falling to the ground under the heights H1 and H2_h1iAnd a_h2iI is 1,2, … …, n, and averages the accelerations of the fall on the ground at heights H1 and H2Andthe data of (a) is stored in the processing module;

and step 3: the infusion monitoring instrument is placed on an infusion support, and the six-axis sensor sends data of the attitude angle omega and the vertical direction acceleration a to the processing module in real time;

and 4, step 4: the processing module judges whether the attitude angle omega is in an inclined state or not by using an attitude angle inclined state judging formula, and starts an inclination early warning module when the real-time attitude angle omega is in the inclined state according to a judging result;

and 5: the processing module judges whether the acceleration a is in a falling state or not by applying an acceleration falling state judging formula, and starts the falling early warning module when the judging result is that the acceleration a is in the falling state.

The starting of the falling early warning module also comprises judging based on the instantaneous acceleration of the falling of the chip.

The chip drop instantaneous acceleration judgment standard is as follows: and a is in the range of [8g (1- &),8g (1+ &) ], starting the falling early warning module, wherein & is the allowable difference degree and is a constant, 0 & lt & 1, and g is the gravity acceleration. Typically, take & ═ 0.1.

The invention can also judge whether the falling occurs or not through the instantaneous acceleration of the falling of the chip, can be used together with an acceleration falling state judging formula, and can also be used independently to assist the judgment of the falling state of the infusion monitor.

Example 4

Example 4 differs from example 1 only in that: the clamping module is added under the inclined and falling state, so that the dropping liquid in the dropper can not continuously drop.

The invention relates to a method for detecting inclination and falling states of an infusion monitor based on a six-axis sensor, which is mainly applied to various hospitals and assists the infusion monitor to intelligently control infusion activities, and comprises the following steps:

step 1: the six-axis sensor is fixedly arranged on the infusion monitor and respectively adjusts the infusion monitor to be in a vertical state and a horizontal state, and respectively acquires an attitude angle omega of the infusion monitor in the vertical state_HAttitude angle ω of the sum horizontal state_LThe attitude angle ω in the vertical state_HAnd attitude angle ω in the horizontal state_LThe data of (a) is stored in the processing module;

step 2: placing the infusion monitor at different heights H1 and H2, respectively carrying out n times of tests to enable the infusion monitor to freely fall under the condition of not applying external force, and respectively recording the accelerations a of the six-axis sensor obtained by falling to the ground under the heights H1 and H2_h1iAnd a_h2iI is 1,2, … …, n, and averages the accelerations of the fall on the ground at heights H1 and H2Andthe data of (a) is stored in the processing module;

and step 3: the infusion monitoring instrument is placed on an infusion support, and the six-axis sensor sends data of the attitude angle omega and the vertical direction acceleration a to the processing module in real time;

and 4, step 4: the processing module judges whether the attitude angle omega is in an inclined state or not by using an attitude angle inclined state judging formula, and starts an inclination early warning module when the real-time attitude angle omega is in the inclined state according to a judging result;

and 5: the processing module judges whether the acceleration a is in a falling state or not by applying an acceleration falling state judging formula, and starts the falling early warning module when the judging result is that the acceleration a is in the falling state.

After the inclination early warning module is started, the infusion monitor alarms, and meanwhile the processing module locks a dropper penetrating through the infusion monitor, so that the dropping liquid in the dropper cannot continuously drop.

Specifically, after the drop early warning module is started, the infusion monitor alarms, and meanwhile the processing module locks a dropper penetrating through the infusion monitor with the processing module, so that dropping liquid in the dropper is prevented from continuously dropping.

The alarm may be by a live audible-visual alarm or a photoelectric alarm. CN 208319649U discloses a liquid level monitoring alarm in an infusion tube, which solves the problems of high potential safety hazard and high working strength of the existing infusion mode, and comprises a liquid level monitoring device and a calling alarm device, wherein the liquid level monitoring device comprises a shell, a first cavity and a columnar cavity penetrating through the upper surface and the lower surface of the shell are arranged on the shell, a controller and a laser probe are arranged in the first cavity, a second cavity is arranged on one side of the shell opposite to the first cavity, a photosensitive assembly is arranged in the second cavity, and the photosensitive assembly and the laser probe are both communicated with the controller; the columnar cavity is arranged between the first cavity and the second cavity; the calling alarm device comprises an audio alarm and/or a remote alarm, and the audio alarm is arranged on the shell and is communicated with the controller; the remote alarm comprises a cover body, the cover body can be sleeved on a calling instrument communicated with a medical care duty room, an electromagnetic transmission part is arranged on the cover body, and a calling button on the calling instrument can be pressed through the electromagnetic transmission component.

In addition, the alarm can also remind directly through Pad ring.

The dropper locking function is realized by a stepping motor. After the inclination early warning module and the falling early warning module are started, a dropper of the infusion monitor is locked, so that the dropping liquid in the dropper is prevented from continuously dropping, and the use safety of the device is improved.

The six-axis sensor, the processing system and the like which are related to the invention are all existing products, do not relate to the improvement of a hardware structure, and mainly remind the infusion monitor of inclination and early warning functions through the setting of the method.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

While the invention has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this description, will appreciate that other embodiments can be devised which do not depart from the scope of the invention as described herein. Furthermore, it should be noted that the language used in the specification has been principally selected for readability and instructional purposes, and may not have been selected to delineate or circumscribe the inventive subject matter. Accordingly, many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the disclosure. The disclosure of the present invention is intended to be illustrative, but not limiting, of the scope of the invention.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.