阅读说明：本技术 搅拌车内物料性质综合判断处理方法及装置 (Method and device for comprehensively judging and processing material properties in mixer truck ) 是由 查显跃 于 2021-08-31 设计创作，主要内容包括：本申请涉及一种搅拌车内物料性质综合判断处理方法及装置,属于混凝土运输的技术领域,其方法包括实时接收传感器获取的反映混凝土性质的数据值数据值,并绘制相应的拟合曲线；基于拟合曲线,计算预设时间段内的数据平均值；将数据平均值与预设数据库中的数据值区间进行匹配,并判断数据平均值是否匹配成功；若否,则通过车载控制器开启摄像头；接收摄像头采集的搅拌筒中混凝土的当前图像,将当前图像与图像数据库中的标准图像进行对比,并获取相似度值；判断相似度值是否小于阈值；若否,则判定混凝土性质良好,并返回实时接收数据值,并绘制相应的拟合曲线的步骤。本申请具有准确判断混凝土性质的效果。(The application relates to a method and a device for comprehensively judging and processing material properties in a mixer truck, belonging to the technical field of concrete transportation, wherein the method comprises the steps of receiving data values of data reflecting the concrete properties acquired by a sensor in real time and drawing a corresponding fitting curve; calculating the average value of the data in a preset time period based on the fitting curve; matching the data average value with a data value interval in a preset database, and judging whether the data average value is successfully matched; if not, the camera is started through the vehicle-mounted controller; receiving a current image of concrete in the mixing drum, which is acquired by a camera, comparing the current image with a standard image in an image database, and acquiring a similarity value; judging whether the similarity value is smaller than a threshold value; if not, judging that the concrete has good properties, returning to the step of receiving the data value in real time and drawing a corresponding fitting curve. The method and the device have the effect of accurately judging the property of the concrete.)

1. A comprehensive judgment and processing method for material properties in a mixer truck is characterized in that a sensor is used for acquiring a data value reflecting the concrete properties and the data value is sent to a remote control platform through a communication module; acquiring a current image of concrete in the mixing drum by using a camera and transmitting the current image to the remote control platform through the communication module; the method is applied to the remote control platform,

receiving the data values in real time and drawing corresponding fitting curves;

calculating the average value of the data in a preset time period based on the fitting curve;

matching the data average value with a data value interval in a preset database, and judging whether the data average value is successfully matched;

if not, the camera is started through the vehicle-mounted controller;

receiving a current image acquired by the camera, comparing the current image with a standard image in an image database, and acquiring a similarity value;

judging whether the similarity value is smaller than a threshold value;

if not, judging that the concrete has good properties, returning to the step of receiving the data values in real time and drawing a corresponding fitting curve.

2. The method of claim 1, wherein the data values comprise torque values for a drive shaft, the fitted curve comprises a torque fitted curve, the data mean comprises a torque mean, the predetermined database comprises a torque database, and the intervals of data values in the torque database are intervals of torque values.

3. The method of claim 2, wherein the data values further comprise rotational speed values of a drive shaft, the fitted curve further comprises a rotational speed fitted curve, the data mean values further comprise rotational speed mean values, the preset database comprises a rotational speed database, and the data value intervals in the rotational speed database are rotational speed value intervals.

4. The method of claim 3, wherein the data values further comprise pressure values of the mixing blades, the fitted curve further comprises a pressure fitted curve, the data mean further comprises a pressure mean, the preset database comprises a pressure database, and the data value intervals in the pressure database are pressure value intervals.

5. The method of claim 4, wherein the matching the data mean value with a data value interval in a preset database, and the determining whether the data mean value is successfully matched comprises:

matching the torque average value with a torque value interval in the torque database;

matching the rotating speed average value with a rotating speed value interval in the rotating speed database;

matching the pressure average value with a pressure value interval in the pressure database;

and if any one or more of the torque average value, the rotating speed average value and the pressure average value are failed to be matched, judging that the data average value is failed to be matched.

6. The method of claim 5, wherein each interval of data values corresponds to an add value;

if the torque average value, the rotating speed average value and the pressure average value are successfully matched, judging that the data average value is successfully matched;

and when the data average value is successfully matched or the similarity value is smaller than a threshold value, judging the addition value corresponding to the successfully matched data value interval as an initial addition value, and acquiring the additive addition value according to the initial addition value.

7. An integrated judgment and processing device for the material property in a mixer truck, which is applied to the integrated judgment and processing method for the material property in the mixer truck according to any one of claims 1 to 6, wherein the mixer truck comprises a mixing drum (5), and is characterized in that the integrated judgment and processing device for the material property in the mixer truck comprises a sensor (1) for acquiring a data value reflecting the concrete property and a camera (16) for acquiring a current image of the concrete in the mixing drum (5), and further comprises a communication module (2), a remote control platform (3), an image database (17) and a preset database (4), the camera (16) is connected with an onboard controller (18), the sensor (1) and the camera (16) are all connected with the communication module (2), and the communication module (2) is wirelessly connected with the remote control platform (3), the image database (17) and the preset database (4) are both connected with the remote control platform (3).

8. The device for comprehensively judging and processing the material properties in the mixer truck according to claim 7, wherein the mixer truck further comprises a transmission shaft (61) for driving the mixing drum (5) to rotate, a placement groove (611) is formed in a side wall of the transmission shaft (61), the sensor (1) comprises a torque sensor (11), the torque sensor (11) is installed in the placement groove (611), the torque sensor (11) is wirelessly connected with the communication module (2), the preset database (4) comprises a torque database (41), and the remote control platform (3) is connected with the torque database (41).

9. The device for comprehensively judging and processing the material properties in the mixer truck according to claim 8, wherein the mixer truck comprises a speed reducer (6), the transmission shaft (61) is an output shaft of the speed reducer (6), a mounting plate (7) is fixedly connected to the speed reducer (6), the sensor (1) further comprises a rotation speed sensor (12) which is wirelessly connected with the communication module (2), the rotation speed sensor (12) is mounted on the mounting plate (7), a gear ring (612) which is matched with the rotation speed sensor (12) and used is fixedly connected to the transmission shaft (61), the preset database (4) further comprises a rotation speed database (42), and the remote control platform (3) is connected with the rotation speed database (42).

10. The device for comprehensively judging and processing the material properties in the mixer truck according to claim 9, wherein a mixing blade (51) is fixedly connected to the inner wall of the mixing drum (5), the sensor (1) further comprises a pressure sensor (13), the pressure sensor (13) is installed on the mixing blade (51), the pressure sensor (13) is wirelessly connected with the communication module (2), the preset database (4) further comprises a pressure database (43), and the remote control platform (3) is connected with the pressure database (43).

Technical Field

The application relates to the technical field of concrete transportation, in particular to a comprehensive judgment and processing method and device for material properties in a mixer truck.

Background

The trucd mixer is the special truck who is used for transporting the material, transports the concrete of building usefulness usually, and in the transportation, hydraulic system on the trucd mixer drives the transmission shaft and rotates, and the transmission shaft drives the churn and remains the rotation throughout for stirring leaf in the churn stirs the concrete, can not solidify in order to guarantee the concrete of delivery.

However, in the long-term transportation process, the properties of the concrete in the mixing drum are reduced, so that an additive is needed, and the additive is mixed in the process of mixing the concrete, so that the properties of the concrete can be obviously improved.

At present, whether the property of the concrete is good or not is generally judged by observing the concrete in the mixing drum through human eyes of a transporter, so that the workload is increased for the transporter, the transportation efficiency is reduced, and the judgment result of the property of the concrete depends on the subjective judgment of the transporter, so that the judgment result lacks objectivity and the accuracy of the judgment result is reduced.

Disclosure of Invention

In order to accurately judge the concrete property, the application provides a comprehensive judgment and processing method and device for the material property in a mixer truck.

In a first aspect, the application provides a method for comprehensively judging and processing the properties of materials in a mixer truck, which adopts the following technical scheme:

a comprehensive judgment and processing method for material properties in a mixer truck comprises the steps of obtaining a data value reflecting the concrete properties by using a sensor and sending the data value to a remote control platform through a communication module; acquiring a current image of concrete in the mixing drum by using a camera and transmitting the current image to the remote control platform through the communication module; the method is applied to the remote control platform,

receiving the data values in real time and drawing corresponding fitting curves;

calculating the average value of the data in a preset time period based on the fitting curve;

matching the data average value with a data value interval in a preset database, and judging whether the data average value is successfully matched;

if not, the camera is started through the vehicle-mounted controller;

receiving a current image acquired by the camera, comparing the current image with a standard image in an image database, and acquiring a similarity value;

judging whether the similarity value is smaller than a threshold value;

if not, judging that the concrete has good properties, returning to the step of receiving the data values in real time and drawing a corresponding fitting curve.

By adopting the technical scheme, the data value acquired by the sensor can reflect the property of the concrete, namely the data value changes along with the property change of the concrete, so that the data average value is calculated according to the actually acquired data value, the data average value is matched with the data value interval, if the matching is successful, the current image and the standard image are used for comparison, whether the property of the concrete is good or not is further determined according to the similarity value, and whether the property of the concrete is good or not can be automatically and accurately judged.

Preferably, the data value includes a torque value of the transmission shaft, the fitted curve includes a torque fitted curve, the data average value includes a torque average value, the preset database includes a torque database, and a data value interval in the torque database is a torque value interval.

Through adopting above-mentioned technical scheme, the transmission shaft is provided power by hydraulic system for drive the churn and rotate, when the nature of the concrete in the churn changes, the required torque value of transmission shaft also changes thereupon, consequently can reflect the nature of concrete through the torque average value, thereby match through torque average value and torque value interval and can determine whether the concrete nature is good.

Preferably, the data values further include rotation speed values of the transmission shaft, the fitting curve further includes a rotation speed fitting curve, the data average value further includes a rotation speed average value, the preset database includes a rotation speed database, and the data value interval in the rotation speed database is a rotation speed value interval.

Through adopting above-mentioned technical scheme, when the nature of the concrete in the churn changes, the required rotational speed value of transmission shaft also changes thereupon, consequently also can reflect the nature of concrete through the rotational speed average value, through addding the rotational speed value, can improve the whether good precision of concrete nature of definite determination.

Preferably, the data values further include pressure values of the stirring blades, the fitting curve further includes a pressure fitting curve, the data average value further includes a pressure average value, the preset database includes a pressure database, and the data value interval in the pressure database is a pressure value interval.

Through adopting above-mentioned technical scheme, the stirring leaf is used for stirring concrete, and when the nature of the concrete in the churn changed, the pressure that the stirring leaf bore also changed thereupon, consequently also can reflect the nature of concrete through the pressure average value, through addding the pressure value, can further improve the whether good accurate nature of concrete nature of definite determination.

Preferably, the matching the data average value with a data value interval in a preset database, and determining whether the data average value is successfully matched includes:

matching the torque average value with a torque value interval in the torque database;

matching the rotating speed average value with a rotating speed value interval in the rotating speed database;

matching the pressure average value with a pressure value interval in the pressure database;

and if any one or more of the torque average value, the rotating speed average value and the pressure average value are failed to be matched, judging that the data average value is failed to be matched.

Preferably, each data value interval corresponds to an addition value;

if the torque average value, the rotating speed average value and the pressure average value are successfully matched, judging that the data average value is successfully matched;

and when the data average value is successfully matched or the similarity value is smaller than a threshold value, judging the addition value corresponding to the successfully matched data value interval as an initial addition value, and acquiring the additive addition value according to the initial addition value.

By adopting the technical scheme, only when the torque average value, the rotating speed average value and the pressure average value are successfully matched or the similarity value is smaller than the threshold value, the concrete at the moment is judged to need to be added with the additive, and the addition value corresponding to the successfully matched data value interval is determined, so that the additive addition amount of the additive can be automatically and accurately determined.

In a second aspect, the present application provides a device for comprehensively determining and processing material properties in a mixer truck, which adopts the following technical scheme:

the utility model provides a material nature is synthesized and is judged processing apparatus in trucd mixer, is applied to foretell material nature is synthesized and is judged processing method in trucd mixer, the trucd mixer includes the churn, material nature is synthesized and is judged processing apparatus in trucd mixer is including the sensor that is used for acquireing the data value that reflects concrete nature and the camera that is arranged in gathering the current image of concrete in the churn, still includes communication module, remote control platform, image database and predetermines the database, the camera is connected with on-vehicle controller, on-vehicle controller the sensor with the camera all with communication module is connected, communication module with remote control platform wireless connection, the image database with predetermine the database all with remote control platform is connected.

By adopting the technical scheme, the data value acquired by the sensor can reflect the property of the concrete, namely the data value changes along with the property change of the concrete, so that the data average value is calculated according to the actually acquired data value, the data average value is matched with the data value interval, if the matching is successful, the current image and the standard image are used for comparison, whether the property of the concrete is good or not is further determined according to the similarity value, and whether the property of the concrete is good or not can be automatically and accurately judged.

Preferably, the mixer truck further comprises a transmission shaft for driving the mixing drum to rotate, a placing groove is formed in the side wall of the transmission shaft, the sensor comprises a torque sensor, the torque sensor is installed in the placing groove, the torque sensor is wirelessly connected with the communication module, the preset database comprises a torque database, and the remote control platform is connected with the torque database.

Through adopting above-mentioned technical scheme, the transmission shaft is provided power by hydraulic system for drive the churn and rotate, when the nature of the concrete in the churn changes, the required torque value of transmission shaft also changes thereupon, consequently can reflect the nature of concrete through the torque average value, thereby match through torque average value and torque value interval and can determine whether the concrete nature is good.

Preferably, the trucd mixer includes the speed reducer, the transmission shaft is the output shaft of speed reducer, fixedly connected with mounting panel on the speed reducer, the sensor still include with communication module wireless connection's speed sensor, speed sensor install in on the mounting panel, fixedly connected with on the transmission shaft with the ring gear that speed sensor cooperation was used, predetermine the database and still include the rotational speed database, the remote control platform with the rotational speed database is connected.

Through adopting above-mentioned technical scheme, when the nature of the concrete in the churn changes, the required rotational speed value of transmission shaft also changes thereupon, consequently also can reflect the nature of concrete through the rotational speed average value, through addding the rotational speed value, can improve the whether good precision of concrete nature of definite determination.

Preferably, fixedly connected with stirring leaf on the churn inner wall, the sensor still includes pressure sensor, pressure sensor install in on the stirring leaf, pressure sensor with communication module wireless connection, preset database still includes the pressure database, remote control platform with the pressure database is connected.

Through adopting above-mentioned technical scheme, the stirring leaf is used for stirring concrete, and when the nature of the concrete in the churn changed, the pressure that the stirring leaf bore also changed thereupon, consequently also can reflect the nature of concrete through the pressure average value, through addding the pressure value, can further improve the whether good accurate nature of concrete nature of definite determination.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the data value obtained by the sensor can reflect the property of the concrete, namely the data value changes along with the property change of the concrete, so that the data average value is calculated according to the actually obtained data value, the data average value is matched with the data value interval, if the matching is successful, the current image is compared with the standard image, whether the property of the concrete is good or not is further determined according to the similarity value, and whether the property of the concrete is good or not can be automatically and accurately judged;

2. the transmission shaft is provided with power by a hydraulic system and is used for driving the mixing drum to rotate, when the property of concrete in the mixing drum changes, the torque value required by the transmission shaft also changes, so that the property of the concrete can be reflected through the torque average value, and whether the property of the concrete is good or not can be determined through the torque average value and the torque value interval matching.

Drawings

Fig. 1 is a schematic flow chart of a method for comprehensively judging and processing the properties of materials in a mixer truck according to an embodiment of the present application.

Fig. 2 is another schematic flow chart of the method for comprehensively judging and processing the material properties in the mixer truck according to the embodiment of the present application.

Fig. 3 is a block diagram showing a circuit configuration of the device for comprehensively determining the material properties in the mixer truck according to the embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a device for comprehensively judging and processing the material properties in the mixer truck according to the embodiment of the present application.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Fig. 6 is a sectional view of a mixing drum according to an embodiment of the present application.

Fig. 7 is an exploded view of an embodiment of the present application incorporating a power supply battery and a pressure sensor.

Description of reference numerals: 1. a sensor; 11. a torque sensor; 12. a rotational speed sensor; 13. a pressure sensor; 131. a power line; 2. a communication module; 3. a remote control platform; 4. presetting a database; 41. a torque database; 42. a rotational speed database; 43. a pressure database; 5. a mixing drum; 51. stirring blades; 52. an open end; 6. a speed reducer; 61. a drive shaft; 611. a placement groove; 612. a ring gear; 7. mounting a plate; 8. a power supply battery; 9. protecting the pipeline; 10. a protective cover; 14. a first modification module; 15. a second modification module; 16. a camera; 17. an image database; 18. a vehicle-mounted controller; 19. an alarm module; 20. a hopper support.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

The present embodiment provides a method for comprehensively determining and processing the material properties in a mixer truck, where the method is applied to a remote control platform, and as shown in fig. 1, the main flow of the method is described as follows (steps S101 to S108):

step S101: data values are received in real time and corresponding fitted curves are drawn.

In this embodiment, the data value includes a torque value of the transmission shaft, a rotation speed value of the transmission shaft, and a pressure value of the stirring blade, and the fitting curve includes a torque fitting curve, a rotation speed fitting curve, and a pressure fitting curve. The transmission shaft is a connecting device between a hydraulic system on the mixing truck and the mixing drum, the hydraulic system is used as one of power sources of the mixing truck and can drive the transmission shaft to rotate, and the transmission shaft drives the mixing drum to rotate; the stirring blade is positioned in the stirring cylinder, and in the rotating process of the stirring cylinder, the stirring blade is used for stirring the concrete in the stirring cylinder.

Therefore, the torque value, the rotating speed value and the pressure value can reflect the property of the concrete in the mixing drum. For example, when the concrete is thick, the stirring of the concrete is relatively laborious, and accordingly, the torque value required by the transmission shaft is higher, but the rotating speed value is reduced, and the pressure value applied to the stirring blade by the concrete is increased.

As shown in fig. 2, the sensors include a torque sensor, a rotational speed sensor, and a pressure sensor. The torque sensor is used for obtaining a torque value of the transmission shaft, the rotating speed sensor is used for obtaining a rotating speed value of the transmission shaft, and the pressure sensor is used for obtaining a pressure value of the stirring blade.

The communication module receives a torque value sent by the torque sensor in real time and sends the torque value to the remote control platform, and the remote control platform receives the torque value sent by the communication module, fits the torque value by adopting a least square method and draws a corresponding torque fitting curve; the communication module receives a rotating speed value sent by the rotating speed sensor in real time and sends the rotating speed value to the remote control platform, the remote control platform receives the rotating speed value sent by the communication module, the rotating speed value is fitted by adopting a least square method, and a corresponding rotating speed fitting curve is drawn; the communication module receives the pressure value sent by the pressure sensor in real time and sends the pressure value to the remote control platform, the remote control platform receives the pressure value sent by the communication module, the pressure value is fitted by adopting a least square method, and a corresponding pressure fitting curve is drawn. The X-axis of the fitted curve is time and the Y-axis is data value.

Notably, the fitted curve is updated in real time as the data values are acquired in real time.

Step S102: and calculating the average value of the data in the preset time period based on the fitted curve.

As shown in fig. 2, the data averages include torque averages, speed averages, and pressure averages. The preset time period may be set to 10 minutes, and the present application calculates the average value of data every 10 minutes.

Specifically, the fixed integral of the torque fitting curve in a preset time period is divided by the interval length of the preset time period, and the result value is the torque average value; dividing the fixed integral of the rotating speed fitting curve in a preset time period by the interval length of the preset time period, wherein the result value is the average value of the rotating speed; and dividing the fixed integral of the pressure fitting curve in the preset time period by the interval length of the preset time period, wherein the result value is the pressure average value.

Step S103: matching the data average value with a data value interval in a preset database, and judging whether the data average value is successfully matched; if yes, go to step S104; if not, go to step S105; each data value interval corresponds to an addition value.

As shown in fig. 2, the preset database includes a torque database, a rotational speed database, and a pressure database. The data value interval in the torque database is a torque value interval, the data value interval in the rotating speed database is a rotating speed value interval, and the data value interval in the pressure database is a pressure value interval.

The weight of concrete transported by one mixer truck is basically the same, but the properties of concrete are different, and the difference becomes larger as the transportation time is prolonged. At present, the addition amount of the additive is basically constant for the same mixer truck, and when the properties of concrete are different, the additive is added too much or too little.

To solve this problem, in this embodiment, an addition value is assigned to each data value interval according to the historical data and the experimental data. Taking the torque database as an example: the torque database stores three torque value intervals (C, E), (E, G) and (G, I), wherein the adding quantity value corresponding to the torque value interval (C, E) is C, the adding quantity value corresponding to the torque value interval (E, G) is E, and the adding quantity value corresponding to the torque value interval (G, I) is G.

If the torque average value is K and the torque average value does not belong to any torque value interval in the torque database, the torque average value matching is failed, and an abnormal signal is output.

Similarly, when the rotation speed average value matching fails or the pressure average value matching fails, an abnormal signal is also output.

When any one or more of the torque average value, the rotation speed average value and the pressure average value fail to be matched, that is, at least one abnormal signal is received, it indicates that the data average value fails to be matched, and the process proceeds to step S105.

If the torque average value is E and belongs to the torque value interval of (E, G), the torque average value is successfully matched, and a normal signal is output, and similarly, the rotating speed average value is matched with the rotating speed value interval in the rotating speed database, if the torque average value is successfully matched, a normal signal is output, and the pressure average value is matched with the pressure value interval in the pressure database, and if the torque average value is successfully matched, a normal signal is output.

And when the torque average value, the rotating speed average value and the pressure average value are successfully matched, namely three normal signals are received, indicating that the data average value is successfully matched, indicating that the concrete property is poor at the moment, needing to add the additive, and turning to the step S104. The concrete at the moment is judged to need to be added with the additive through the matching of the average values of the three data, so that the accuracy of judging the property of the concrete can be improved, and the possibility of misjudging the concrete to need to be added with the additive is reduced.

Optionally, the condition that the data average value fails to match may be that the torque average value, the rotating speed average value and the pressure average value all fail to match; the condition that the data average value is successfully matched can be that any one or more of the torque average value, the rotating speed average value and the pressure average value are successfully matched.

Step S104: and judging the addition quantity value corresponding to the successfully matched data value interval as an initial addition quantity value, and acquiring the additive addition quantity value according to the initial addition quantity value.

As shown in fig. 2, the initial add value includes a first add value, a second add value, and a third add value.

And when the similarity value is smaller than the threshold value, judging the addition value corresponding to the torque value interval to which the torque average value belongs as a first addition value, judging the addition value corresponding to the rotating speed value interval to which the rotating speed average value belongs as a second addition value, and judging the addition value corresponding to the pressure value interval to which the pressure average value belongs as a third addition value.

And taking the average value of the obtained first addition amount value, second addition amount value and third addition amount value as the additive addition amount value. The data source for calculating the additive addition value of the additive has the diversity, so that the obtained additive addition value of the additive is more accurate.

Step S105: and starting the camera through the vehicle-mounted controller.

In this embodiment, the remote control platform sends an instruction to the vehicle-mounted controller through the communication module, and after receiving the instruction, the vehicle-mounted controller controls the camera to open, and the camera acquires the current image of the concrete in the mixing drum.

Step S106: and receiving a current image acquired by the camera, comparing the current image with a standard image in an image database, and acquiring a similarity value.

In this embodiment, the standard image is an image when the concrete property is good, but the concrete in the mixing drum is in dynamic motion due to the continuous rotation of the mixing drum, so that a plurality of standard images are provided in the image database, and each standard image can represent different states of the concrete in the mixing drum.

And respectively comparing the current image with each standard image by adopting a cosine similarity algorithm, and calculating to obtain a plurality of initial similarity values. Specifically, both the current image and the standard image are subjected to image graying, the current image and the standard image subjected to the image graying are scaled to be consistent in size, and the cosine similarity, namely the initial similarity value, of the scaled current image and the standard image is calculated.

And selecting the largest initial similarity value from the plurality of initial similarity values as the similarity value.

Step S107: judging whether the similarity value is smaller than a threshold value, if so, turning to the step S104; if not, the process proceeds to step S108.

In this embodiment, whether the concrete needs to be added with the additive is further determined by using the similarity value between the current image and the standard image, and when the similarity value is smaller than the threshold value, it is determined that the concrete has poor performance at that time, and the additive needs to be added, and the process proceeds to step S104.

Step S108: and (4) judging that the concrete property is good, closing the camera through the vehicle-mounted controller, and returning to the step (S101).

In this embodiment, when the similarity value is not less than the threshold value, it is determined that the concrete property at that time is good, and the camera is automatically turned off by the vehicle-mounted controller without adding an additive, so as to save electric power. Returning to step S101, the fitting curve is updated, and then the data average value for the next preset time period is calculated.

Furthermore, an alarm module is additionally arranged, and when the similarity value is smaller than the threshold value, the alarm module gives an alarm to remind an operator. The operation personnel can also open and close through the remote control platform manual control camera, and the camera gathers the concrete image and sends the concrete image to communication module, and communication module sends the concrete image to the remote control platform, and the remote control platform shows the concrete image, makes things convenient for the operation personnel to carry out remote monitoring.

Further, a first modification module is additionally arranged and used for modifying the addition amount. For example, the later experiment obtains the addition E + corresponding to the more accurate torque value interval (E, G), and modifies the original addition value E to E +.

And a second modification module is additionally arranged and is used for modifying the data value interval. For example, the torque value interval (C, E) is subdivided into a torque value interval (C, D) and a torque value interval (D, E) by later experiments, the addition amount corresponding to the torque value interval (C, D) is still C, and the addition amount corresponding to the torque value interval (D, E) is determined as D.

The first modification module and the second modification module are used for continuously updating and perfecting the preset database, so that the accuracy of determining whether the concrete property is good or not and the accuracy of determining the additive amount of the additive can be improved.

Referring to fig. 3 and 4, the mixer truck includes a mixing drum 5, and the material comprehensive judgment processing device in the mixer truck includes a sensor 1, a communication module 2, a remote control platform 3, a preset database 4, a camera 16, an image database 17, and an onboard controller 18. The camera 16 is mounted on the hopper holder 20 of the mixer truck for fixedly supporting the hopper, the camera 16 facing the open end 52 of the mixing drum 5. The camera 16 is used for acquiring a current image of concrete in the mixing drum 5, and the vehicle-mounted controller 18 is used for controlling the opening and closing of the camera 16. The onboard controller 18 may be mounted inside the head of the truck mixer or on the body of the truck mixer, the onboard controller 18 shown in this embodiment is in communication with the camera 16, and the onboard controller 18 is mounted on the body of the truck mixer near the head.

The communication modules 2 are all installed at the position, close to the vehicle head, of the vehicle body of the mixer vehicle. The sensor 1 and the vehicle-mounted controller 18 are both connected with the communication module 2, the communication module 2 is connected with the remote control platform 3, and the image database 17 and the preset database 4 are both in communication connection with the remote control platform 3.

Wherein, the sensor 1 is used for acquiring a data value reflecting the concrete property; the preset database 4 is used for storing data value intervals, and each data value interval corresponds to an addition value according to historical data and experimental data.

The sensor 1 sends the acquired data value to the communication module 2, and the communication module 2 remotely sends the received data value to the remote control platform 3. The remote control platform 3 receives the data values in real time and draws corresponding fitting curves; calculating a data average value in a preset time period based on the fitting curve, matching the data average value with a plurality of data value intervals in a preset database 4, and judging whether the data average value is successfully matched; if not, the remote control platform 3 controls the camera 16 to be started through the vehicle-mounted controller 18, whether the concrete property is good or not is further confirmed by using the current image acquired by the camera 16, if so, the concrete property is judged to be poor, the additive needs to be added, the addition quantity value corresponding to the successfully matched data value interval is judged to be an initial addition quantity value, and the additive addition quantity value is obtained according to the initial addition quantity value.

Specifically, referring to fig. 4 and 5, the mixer truck includes a speed reducer 6, and the speed reducer 6 is powered by a hydraulic system of the mixer truck. The transmission shaft 61 is the output shaft of the speed reducer 6, the transmission shaft 61 and the mixing drum 5 are coaxially arranged, and the transmission shaft 61 and the mixing drum 5 are connected with each other through a flange towards one end face of the mixing truck head.

The hydraulic system drives the transmission shaft 61 of the speed reducer 6 to rotate, the transmission shaft 61 drives the mixing drum 5 to rotate, and when the property of concrete in the mixing drum 5 changes, the torque value and the rotating speed value of the mixing drum 5 driven by the transmission shaft 61 to rotate also change. For example, when the concrete is thick, the stirring of the concrete is relatively laborious, and accordingly, the torque value required for the transmission shaft 61 is higher, but the rotation speed value is reduced. Therefore, the properties of the concrete can be reflected through the torque value and the rotating speed value, and the properties of the concrete can be determined conveniently.

Referring to fig. 3 and 5, in the present embodiment, the data value includes a torque value, the sensor 1 includes a torque sensor 11 for acquiring the torque value of the transmission shaft 61, and the torque sensor 11 may be a sensor that does not require an external power supply. A placing groove 611 is formed on the side wall of the transmission shaft 61, the torque sensor 11 is installed in the placing groove 611, and the transmitting end of the torque sensor 11 is connected to the communication module 2 in a communication manner.

Referring to fig. 3, the fitted curve comprises a torque fitted curve and the data mean comprises a torque mean. The torque sensor 11 sends the acquired torque value to the remote control platform 3 through the communication module 2, and the remote control platform 3 fits the torque value by adopting a least square method and draws a corresponding torque fitting curve. And dividing the fixed integral of the torque fitting curve in the preset time period by the interval length of the preset time period, wherein the result value is the torque average value. The preset time period can be set to 10 minutes, and the data average value is calculated every 10 minutes.

In this embodiment, the preset database 4 includes a torque database 41, and the data value interval in the torque database 41 is a torque value interval. The remote control platform 3 is in communication connection with the torque database 41, matches the torque average value with the torque value interval in the torque database 41, and judges whether the torque average value is successfully matched.

Specifically, for example, the torque database 41 stores three torque value sections (C, E), (E, G), and (G, I), where the torque value section (C, E) corresponds to the addition value C, the torque value section (E, G) corresponds to the addition value E, and the torque value section (G, I) corresponds to the addition value G.

If the torque average value is K, which does not belong to any torque value interval in the torque database 41, it indicates that the torque average value matching fails.

If the torque average value is E and belongs to the torque value interval of (E, G), the torque average value is successfully matched.

Referring to fig. 3 and 5, in the present embodiment, the data values further include a rotation speed value, the sensor 1 further includes a rotation speed sensor 12 for acquiring the rotation speed value of the transmission shaft 61, and the rotation speed sensor 12 may be a gear rotation speed sensor 12 that does not need an external power supply. The reducer 6 is fixedly connected with a mounting plate 7 on one side surface facing the mixing drum 5, and the connection mode can be welding. The rotating speed sensor 12 is mounted on the mounting plate 7, a gear ring 612 matched with the rotating speed sensor 12 is fixedly connected to the transmission shaft 61, the gear ring 612 and the transmission shaft 61 can be connected in a welding mode, and the gear ring 612 and the transmission shaft 61 can also be of an integrated structure. The transmitting end of the rotating speed sensor 12 is connected with the communication module 2 in a communication mode.

Referring to fig. 3, the fitted curve further includes a rotation speed fitted curve, and the data average further includes a rotation speed average. The rotating speed sensor 12 sends the collected rotating speed value to the remote control platform 3 through the communication module 2, and the remote control platform 3 fits the rotating speed value by adopting a least square method and draws a corresponding rotating speed fitting curve. And dividing the fixed integral of the rotating speed fitting curve in the preset time period by the interval length of the preset time period, wherein the result value is the rotating speed average value.

In this embodiment, the preset database 4 further includes a rotation speed database 42, and the data value interval in the rotation speed database 42 is a rotation speed value interval. The remote control platform 3 is in communication connection with the rotation speed database 42, matches the rotation speed average value with the rotation speed value interval in the rotation speed database 42, and determines whether the rotation speed average value is successfully matched, and the specific matching method is the same as the method for determining whether the torque average value is successfully matched, and is not repeated here.

Referring to fig. 4 and 6, the mixing blade 51 is fixedly connected to the side wall of the mixing drum 5, and the mixing blade 51 mixes the concrete in the mixing drum 5 while the mixing drum 5 rotates. When the properties of the concrete in the mixing drum 5 change, the pressure exerted by the concrete on the mixing blades 51 changes. For example, when the concrete is thick, the stirring of the concrete is relatively laborious, and accordingly, the pressure value applied to the stirring blade 51 is increased. Therefore, the property of the concrete can be reflected by the pressure value, thereby facilitating the determination of the additive amount of the admixture.

Referring to fig. 3 and 6, in this embodiment, the data values further include pressure values, the sensor 1 further includes a pressure sensor 13 for acquiring the pressure values of the stirring blades 51, the pressure sensor 13 is mounted on the stirring blades 51, and the transmitting end of the pressure sensor 13 is in communication connection with the communication module 2.

Referring to fig. 6 and 7, the power supply battery 8 is mounted on the outer wall of the mixer drum 5, and the power line 131 of the pressure sensor 13 is inserted through the side wall of the mixer drum 5 and electrically connected to the power supply battery 8.

In order to reduce the damage of the concrete to the power line 131 in the mixing process, a protection pipeline 9 for protecting the power line 131 is fixedly connected between the inner wall of the mixing drum 5 and the pressure sensor 13, and the power line 131 is positioned in the protection pipeline 9. In order to protect the power supply battery 8, a sealed protective cover 10 is fixedly connected to the outer wall of the mixing drum 5, the protective cover 10 has dustproof and rainproof functions, and the protective cover 10 can be made of an insulating material so as to reduce the influence of the power supply battery 8 on the power supply of the pressure sensor 13.

Referring to fig. 3, the fitted curve further includes a pressure fitted curve, and the data mean further includes a pressure mean. The pressure sensor 13 sends the collected pressure value to the remote control platform 3 through the communication module 2, and the remote control platform 3 fits the pressure value by adopting a least square method and draws a corresponding pressure fitting curve. And dividing the fixed integral of the pressure fitting curve in the preset time period by the interval length of the preset time period, wherein the result value is the pressure average value.

In this embodiment, the preset database 4 further includes a pressure database 43, and a data value interval in the pressure database 43 is a pressure value interval. The remote control platform 3 is in communication connection with the pressure database 43, matches the pressure average value with the pressure value interval in the pressure database 43, and determines whether the pressure average value is successfully matched, and the specific matching method is the same as the method for determining whether the torque average value is successfully matched, and is not described herein again.

When the torque average value, the rotating speed average value or the pressure average value are successfully matched, a normal signal is output.

And when the torque average value, the rotating speed average value and the pressure average value are successfully matched, namely three normal signals are received, the data average value is successfully matched, the property of the concrete at the moment is poor, and an additive needs to be added. And judging the addition quantity value corresponding to the successfully matched data value interval as an initial addition quantity value, and acquiring the additive addition quantity value according to the initial addition quantity value.

Specifically, the initial addition quantity value includes a first addition quantity value, a second addition quantity value and a third addition quantity value, the addition quantity value corresponding to the torque value interval to which the torque average value belongs is determined as the first addition quantity value, the addition quantity value corresponding to the rotation speed value interval to which the rotation speed average value belongs is determined as the second addition quantity value, and the addition quantity value corresponding to the pressure value interval to which the pressure average value belongs is determined as the third addition quantity value.

And taking the average value of the obtained first addition amount value, second addition amount value and third addition amount value as the additive addition amount value. The data source for calculating the additive addition value of the additive has the diversity, so that the obtained additive addition value of the additive is more accurate.

When the torque average value, the rotating speed average value or the pressure average value fails to be matched, an abnormal signal is output.

And when any one or more of the torque average value, the rotating speed average value and the pressure average value fail to be matched, namely at least one abnormal signal is received, the data average value is failed to be matched.

After the data average value matching fails, the remote control platform 3 sends an instruction to the vehicle-mounted controller 18 through the communication module 2, after the instruction is received, the vehicle-mounted controller 18 controls the camera 16 to be started, the camera 16 collects the current image of the concrete in the mixing drum 5 and sends the current image to the communication module 2, and the communication module 2 sends the current image to the remote control platform 3.

The remote control platform 3 receives the current image, compares the current image with the standard image in the image database 17, and obtains a similarity value. However, since the mixing drum 5 is in continuous rotation, so that the concrete in the mixing drum 5 is in dynamic motion, a plurality of standard images are provided in the image database 17, and each standard image can represent different states of the concrete in the mixing drum 5.

And respectively comparing the current image with each standard image by adopting a cosine similarity algorithm, and calculating to obtain a plurality of initial similarity values. Specifically, both the current image and the standard image are subjected to image graying, the current image and the standard image subjected to the image graying are scaled to be consistent in size, and the cosine similarity, namely the initial similarity value, of the scaled current image and the standard image is calculated.

And selecting the largest initial similarity value from the plurality of initial similarity values as the similarity value.

And judging whether the similarity value is smaller than a threshold value, if so, judging the addition quantity value corresponding to the successfully matched data value interval as an initial addition quantity value, and acquiring the additive addition quantity value according to the initial addition quantity value.

If not, the concrete property is judged to be good at the moment, no additive is needed to be added, and the camera 16 is automatically closed through the vehicle-mounted controller 18, so that the electric quantity is saved. And returning to the step of receiving the data value in real time by the remote control platform 3, drawing a corresponding fitting curve, updating the fitting curve, and then calculating the data average value of the next preset time period.

Optionally, the condition that the data average value fails to match may be that the torque average value, the rotating speed average value and the pressure average value all fail to match; the condition that the data average value is successfully matched can be that any one or more of the torque average value, the rotating speed average value and the pressure average value are successfully matched.

Referring to fig. 3, further, an alarm module 19 in communication connection with the remote control platform 3 is added, and when the similarity value is smaller than the threshold value, the alarm module 19 gives an alarm to remind an operator. The operation personnel can also open and close through 3 manual control cameras 16 of remote control platform, and camera 16 gathers the concrete image in real time and sends the concrete image to communication module 2, and communication module 2 sends the concrete image to remote control platform 3, and remote control platform 3 shows the concrete image, makes things convenient for operation personnel remote monitoring.

Further, a first modification module 14 for modifying the addition amount is added. For example, the later experiment obtains the addition E + corresponding to the more accurate torque value interval (E, G), and modifies the original addition value E to E +.

A second modification module 15 for modifying the data value interval is added. For example, the torque value interval (C, E) is subdivided into a torque value interval (C, D) and a torque value interval (D, E) by later experiments, the addition amount corresponding to the torque value interval (C, D) is still C, and the addition amount corresponding to the torque value interval (D, E) is determined as D.

The first modification module 14 and the second modification module 15 are used for continuously updating and perfecting the preset database 4, so that the accuracy of determining whether the concrete property is good or not and the accuracy of determining the additive amount of the additive can be improved.

The implementation principle of the comprehensive judgment and processing device for the material properties in the agitating lorry is as follows:

the torque sensor 11 collects the torque value of the transmission shaft 61 in real time and sends the torque value to the remote control platform 3 through the communication module 2; the remote control platform 3 calculates a torque average value in a preset time period through the torque value; the torque average is matched to the torque value intervals in the torque database 41.

The rotating speed sensor 12 collects the rotating speed value of the transmission shaft 61 in real time and sends the rotating speed value to the remote control platform 3 through the communication module 2; the remote control platform 3 calculates the rotating speed average value in a preset time period through the rotating speed value; the average rotational speed is matched to the rotational speed value intervals in the rotational speed database 42.

The pressure sensor 13 collects the pressure value of the stirring blade 51 in real time and sends the pressure value to the remote control platform 3 through the communication module 2; the remote control platform 3 calculates the pressure average value in a preset time period through the pressure value; the pressure average is matched to the pressure value interval in the pressure database 43.

And when the torque average value, the rotating speed average value and the pressure average value are successfully matched, the concrete property is poor at the moment, the additive is required to be added, and the addition quantity value corresponding to the successfully matched data value interval is judged as the initial addition quantity value, so that a first addition quantity value, a second addition quantity value and a third addition quantity value are obtained.

And taking the average value of the obtained first addition amount value, second addition amount value and third addition amount value as the additive addition amount value.

When any one or more of the torque average value, the rotating speed average value and the pressure average value fails to be matched, the remote control platform 3 controls the camera 16 to be started through the vehicle-mounted controller 18, and the camera 16 sends the acquired current image of the concrete in the mixing drum 5 to the remote control platform 3 through the communication module 2.

The remote control platform 3 compares the current image with the standard image in the image database 17 to obtain a similarity value.

And if the similarity value is smaller than the threshold value, judging that the concrete at the moment is poor in property and needing to be added with an additive.

If the similarity value is not less than the threshold value, the concrete quality at that time is determined to be good. The camera 16 is automatically closed by the vehicle-mounted controller 18, the remote control platform 3 continues to receive the torque value, the rotating speed value and the pressure value, and then the data average value of the next preset time period is calculated.

Various changes and specific examples in the method provided by the foregoing embodiment are also applicable to the device for comprehensively judging and processing the material property in the mixer truck according to this embodiment, and through the foregoing detailed description of the method for comprehensively judging and processing the material property in the mixer truck, those skilled in the art can clearly know the method for implementing the device for comprehensively judging and processing the material property in the mixer truck in this embodiment, and for the sake of brevity of the description, detailed description is omitted here.