A sensor-embedded synchronous belt

Abstract

The application provides a synchronous belt with a built-in sensor, comprising: an elastic material layer and a built-in circuit, wherein the elastic material layer is arranged on the surface of the synchronous belt tooth, and is used for fixing and protecting the built-in circuit; the built-in circuit comprises a sensor and a signal transmitting module; the sensor is arranged on the synchronous belt tooth, and is communicatively connected with the signal transmitting module; and the signal transmitting module is used for transmitting a first signal collected by the sensor to the outside of the synchronous belt. The synchronous belt can collect the stress conditions of each synchronous belt tooth in the running process of the synchronous belt in real time and accurately, and transmit the real-time signal collected by the sensor to the outside of the synchronous belt through the signal transmitting module, so that an external adjusting mechanism can adjust the running parameters of the synchronous belt, such as pre-tightening force, running speed and power transmission, according to the real-time signal collected by the sensor, and the technical requirement of intelligent and accurate control of the synchronous belt is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of synchronous belt, in particular to a synchronous belt with built-in sensor. BACKGROUND

[0002] The synchronous belt is widely used in the fields of automobile and electronic product due to its good transmission performance and the characteristics of suitable long-distance transmission. The structure of the synchronous belt generally comprises a main body layer and a strength layer. The main body layer is generally made of rubber, polyurethane or the like, and the strength layer is generally made of steel wire, glass fiber, nylon or the like. The structure is simple and the function is single. Only when the synchronous belt transmission system is designed, the parameters involved in the synchronous belt are determined in theory. However, the actual running parameters of the synchronous belt transmission system cannot be collected in real time and accurately. The actual running condition of the synchronous belt transmission system cannot be monitored in real time and accurately. The size error during the manufacturing of the synchronous belt and the dynamic error generated during the operation cannot be accurately adjusted in real time. The technical requirements of intelligentization and precision of the industry development cannot be met. SUMMARY

[0003] In view of at least one of the above technical problems, the present application provides a synchronous belt with built-in sensor, which collects real-time operation data of the synchronous belt and meets the technical requirements of intelligentization and precision of the industry development.

[0004] To achieve the above-mentioned application purposes, the present application provides a synchronous belt with built-in sensor, characterized in that it comprises an elastic material layer and a built-in circuit, wherein

[0005] The elastic material layer is arranged on the surface of the synchronous belt teeth and fixes and protects the built-in circuit.

[0006] The built-in circuit comprises a sensor and a signal transmission module. The sensor is arranged at the synchronous belt teeth and is communicatively connected with the signal transmission module. The signal transmission module is used for transmitting the first signal collected by the sensor to the outside of the synchronous belt.

[0007] Preferably, the built-in circuit further comprises a power module, which is communicatively connected with the sensor and the signal transmission module and is used for providing electric energy to the sensor and the signal transmission module.

[0008] Preferably, the built-in circuit further comprises a data processing module, which is communicatively connected with the sensor, the power module and the signal transmission module, is responsible for receiving and processing the first signal of the sensor, and transmits the second signal processed through the signal transmission module.

[0009] Preferably, the built-in circuit further comprises a parameter adjustment module, which is communicatively connected with the data processing module, and is responsible for adjusting the parameters of the synchronous belt according to the third signal sent by the data processing module.

[0010] The application also provides a synchronous belt with a built-in sensor, characterized in that it comprises an elastic material layer and a built-in circuit, wherein,

[0011] The elastic material layer is arranged on the surface of the synchronous belt teeth, and is used for fixing and protecting the built-in circuit.

[0012] The built-in circuit comprises a sensor and a parameter adjustment module, the sensor is arranged on the synchronous belt teeth, and is communicatively connected with the parameter adjustment module, and the parameter adjustment module is used for adjusting the parameters of the synchronous belt according to the first signal collected and sent by the sensor.

[0013] Preferably, the built-in circuit further comprises a power module, which is communicatively connected with the sensor and the parameter adjustment module, and is used for providing electric energy for the sensor and the parameter adjustment module.

[0014] Preferably, the application further comprises a data processing module, which is communicatively connected with the sensor, the power module and the parameter adjustment module, is responsible for receiving and processing the first signal of the sensor, generating a third signal, and adjusting the parameters of the synchronous belt through the parameter adjustment module according to the third signal.

[0015] Preferably, the sensor is a piezoelectric ceramic sensor, which is arranged at the middle part of the synchronous belt teeth or on both sides of the tooth surface, and is used for converting the pressure received by the synchronous belt teeth into the first signal.

[0016] Preferably, the power module comprises a wireless receiving module and / or a storage battery, wherein the wireless receiving module comprises a wireless receiving coil arranged around the synchronous belt, and the storage battery comprises a first rigid shell and a chargeable battery core arranged inside the first rigid shell, the first rigid shell is a hollow cylinder, and is fixedly arranged along the width direction of the synchronous belt.

[0017] Preferably, the parameter adjustment module is arranged at the middle part of the synchronous belt teeth or on both sides, and / or the parameter adjustment module is arranged between two adjacent synchronous belt teeth, and is used for adjusting the tooth shape and / or the pitch of the synchronous belt according to the third signal.

[0018] Preferably, the data processing module comprises a second rigid shell and a processing circuit arranged inside the second rigid shell, the second rigid shell is a hollow cylinder, and is fixedly arranged along the width direction of the synchronous belt.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] This invention discloses a synchronous belt with a built-in sensor. An elastic material layer on the surface of the synchronous belt teeth secures and protects the built-in circuitry. The built-in circuitry includes a sensor and a signal transmitting module. The sensor, positioned at the teeth, is used to collect real-time and precise data on the force exerted on each tooth during belt operation. The signal transmitting module, communicatively connected to the sensor, transmits the real-time signal to the outside of the synchronous belt. An external adjustment mechanism can then adjust operating parameters such as preload, speed, and power transmission of the synchronous belt in real time based on the sensor's signals. Another technical solution of this invention includes a parameter adjustment module communicatively connected to the sensor. This module adjusts parameters such as tooth profile and pitch in real time based on the signals collected and transmitted by the sensor, thereby correcting dimensional and operational errors in the synchronous belt and fully meeting the technical requirements for intelligent and precise control of synchronous belts. Attached Figure Description

[0021] Figure 1 This is a partial cross-sectional view of the synchronous belt teeth according to the first embodiment of the present invention.

[0022] Figure 2 This is a partial cross-sectional view of the synchronous belt teeth according to the second embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the synchronous band built-in circuit of the third embodiment of the present invention.

[0024] In the diagram: 1-elastic material layer, 2-built-in circuit, 21-sensor, 22-signal transmission module, 23-parameter adjustment module, 24-power module, 25-data processing module, 241-wireless receiving module, 242-battery. Detailed Implementation

[0025] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses or methods consistent with some aspects of this application as detailed in the appended claims.

[0026] Example 1

[0027] like Figure 1 As shown, a synchronization belt with a built-in sensor includes: an elastic material layer 1 and a built-in circuit 2, wherein,

[0028] The elastic material layer 1 is disposed on the surface of the synchronous belt teeth to fix and protect the built-in circuit 2;

[0029] The built-in circuit 2 includes a sensor 21 and a signal transmission module 22. The sensor 21 is located at the tooth of the synchronous belt and is communicatively connected to the signal transmission module 22. The signal transmission module 22 is used to send the first signal collected by the sensor 21 to the outside of the synchronous belt.

[0030] Specifically, the sensor 21 can be a piezoelectric ceramic sensor, which can be set in the middle and / or on both sides of the synchronous belt teeth, and the outermost layer is covered by the elastic material layer 1. The signal transmitting module 22 can be communicatively connected to each piezoelectric ceramic sensor and can be numbered according to their relative positions.

[0031] When the synchronous belt of the built-in sensor is running, the synchronous belt pulley transmits driving force by squeezing the synchronous belt teeth. The driving force compresses the piezoelectric ceramic sensor through the elastic material layer 1 covering the outermost layer of the synchronous belt teeth, and the piezoelectric ceramic sensor generates a voltage signal. The signal transmitting module 22 can send radio signals to the outside world according to the voltage signal generated by the piezoelectric ceramic sensor.

[0032] More specifically, the signal transmitting module 22 with different numbers can be configured to transmit radio signals of different frequencies.

[0033] It is understandable that the greater the driving force on the synchronous belt teeth, the greater the voltage signal generated, and vice versa; the greater the voltage signal, the stronger the radio signal strength, and vice versa.

[0034] This configuration allows the sensor 21 installed in each synchronous belt tooth to collect the operating parameters of each synchronous belt tooth in real time. The signal transmitting module 22 then converts these operating parameters into radio signals and transmits them to the outside of the synchronous belt. The external signal receiving device, by acquiring the intensity of the radio signal, can accurately determine the magnitude of the driving force on each synchronous belt tooth in real time; by acquiring the frequency of the radio signal, it can accurately determine the operating position of each synchronous belt tooth in real time; and by comprehensively analyzing the differences in driving force between different synchronous belt teeth, it can accurately determine in real time the presence of dimensional errors in a specific synchronous belt tooth, such as those found in the synchronous belt... After one week of operation, if the driving force of a certain synchronous belt tooth differs from that of other synchronous belt teeth, an excessively large driving force indicates that the synchronous belt tooth size is too large, while an excessively small driving force indicates that the synchronous belt tooth size is too small. By comprehensively analyzing the variation cycle of the driving force on the same synchronous belt tooth, the operating speed and transmission power of the synchronous belt can be obtained in real time and with precision. By comprehensively analyzing the changes in the magnitude of the driving force between synchronous belt teeth at different times, the cumulative error of the synchronous belt during operation can be obtained in real time and with precision. For example, if the synchronous belt operates for a long time, the temperature will rise, and due to thermal expansion and contraction, the preload of the synchronous belt will decrease, and the resultant force of the driving force and preload on the synchronous belt teeth will decrease. In conjunction with an external adjustment mechanism, the operating parameters such as the synchronous belt preload, operating speed, and transmission power can be adjusted in real time according to the aforementioned radio signals, thus achieving the technical requirement of intelligent and precise control of the synchronous belt.

[0035] Example 2

[0036] like Figure 2 As shown, a synchronization belt for a built-in sensor according to this application includes: an elastic material layer 1 and a built-in circuit 2, wherein,

[0037] The elastic material layer 1 is disposed on the surface of the synchronous belt teeth to fix and protect the built-in circuit 2;

[0038] The built-in circuit 2 includes a sensor 21 and a parameter adjustment module 23. The sensor 21 is disposed at the tooth of the timing belt and is communicatively connected to the parameter adjustment module 23. The parameter adjustment module 23 is used to adjust the timing belt parameters according to the first signal collected and sent by the sensor 21.

[0039] Specifically, the sensor 21 can be a piezoelectric ceramic sensor, which can be set in the middle and / or on both sides of the synchronous belt teeth, and the outermost layer is covered by the elastic material layer 1. The parameter adjustment module 23 can also be a piezoelectric ceramic device, which is set between the two synchronous belt teeth, and / or in the middle or on both sides of the synchronous belt teeth, and can be communicatively connected to the piezoelectric ceramic sensor one by one. The parameter adjustment modules 23 in different positions can also be communicatively connected.

[0040] When the synchronous belt of the built-in sensor is running, the synchronous belt pulley transmits driving force by squeezing the synchronous belt teeth. The driving force compresses the piezoelectric ceramic sensor through the elastic material layer 1 covering the outermost layer of the synchronous belt teeth. The piezoelectric ceramic sensor generates a voltage signal, and the parameter adjustment module 23 can adjust the synchronous belt parameters according to the voltage signal generated by the piezoelectric ceramic sensor.

[0041] More specifically, the parameter adjustment module 23 can be configured with different parameter adjustment trigger logics. For example, when the parameter adjustment module 23 is positioned between two synchronous belt teeth, if the driving force of one synchronous belt tooth increases abnormally, the voltage signal generated by the piezoelectric ceramic sensor inside that synchronous belt tooth will increase abnormally. In this case, the parameter adjustment trigger logic of the parameter adjustment module 23 can be set such that when the voltage signal increases abnormally, the parameter adjustment module 23 receiving the voltage signal shrinks in size along the length of the synchronous belt under the action of the voltage, so that other synchronous belt teeth share the driving force exceeding the point of abnormal increase, until the driving force difference of the synchronous belt at that point is eliminated, thus achieving force balance. Conversely, when the driving force of a certain synchronous belt tooth decreases abnormally, the voltage signal generated by the piezoelectric ceramic sensor inside that synchronous belt tooth will also decrease abnormally. In this case, the parameter adjustment trigger logic of the parameter adjustment module 23 can be set such that when the voltage signal decreases abnormally, the parameter adjustment module 23 receiving the voltage signal increases in size along the length of the synchronous belt under the influence of voltage. This allows some of the driving force of other synchronous belt teeth to be distributed to the synchronous belt tooth with the abnormally decreased driving force, until the driving force difference at that point is eliminated. In other words, by adjusting the local pitch of the synchronous belt, the purpose of real-time and precise adjustment of the synchronous belt operating parameters is achieved, eliminating the driving force difference between the synchronous belt teeth, realizing real-time dynamic force balance, eliminating synchronous belt errors, and achieving smooth and precise transmission.

[0042] Similarly, when the parameter adjustment module 23 is positioned at the middle or both sides of the synchronous belt teeth, if the driving force of a certain synchronous belt tooth increases abnormally, the voltage signal generated by the piezoelectric ceramic sensor inside that synchronous belt tooth will increase abnormally. At this time, the parameter adjustment trigger logic of the parameter adjustment module 23 can be set such that if the voltage signal increases abnormally, the parameter adjustment module 23, which is communicatively connected to the piezoelectric ceramic sensor at that point, will shrink under the action of the voltage, making the overall size of the synchronous belt tooth at that point smaller. This allows other synchronous belt teeth to share the excess driving force at the point where the driving force increases abnormally, until the difference in driving force of the synchronous belt at that point is eliminated, thus achieving force balance. Conversely, when the driving force of a certain synchronous belt tooth decreases abnormally, the voltage signal generated by the piezoelectric ceramic sensor inside that synchronous belt tooth will also decrease abnormally. In this case, the parameter adjustment trigger logic of the parameter adjustment module 23 can be set such that when the voltage signal decreases abnormally, the parameter adjustment module 23, which is communicatively connected to the piezoelectric ceramic sensor at that point, increases in size under the influence of the voltage. This increases the overall size of the synchronous belt tooth at that point, allowing some of the driving force from other synchronous belt teeth to be distributed to the tooth with the abnormally decreased driving force, until the driving force difference at that point is eliminated. In other words, by adjusting the size of the synchronous belt teeth, the operating parameters of the synchronous belt can be adjusted in real time and precisely, eliminating the driving force difference between the synchronous belt teeth, achieving real-time dynamic force balance, eliminating synchronous belt errors, and achieving smooth and precise transmission.

[0043] Furthermore, when the parameter adjustment module 23 is simultaneously positioned between the two synchronous belt teeth and at the center or sides of the synchronous belt teeth, both parameter adjustment trigger logics can be set simultaneously. By simultaneously adjusting the size and local pitch of the synchronous belt teeth, the purpose of real-time and precise adjustment of the synchronous belt operating parameters can be better achieved. This more quickly and effectively eliminates the driving force difference between the synchronous belt teeth, realizes real-time dynamic force balance, eliminates synchronous belt errors, and achieves smooth and precise transmission. This fulfills the technical requirement for intelligent and precise control of the synchronous belt.

[0044] Example 3

[0045] like Figure 3 As shown, a synchronization belt for a built-in sensor according to this application includes: an elastic material layer 1 (not shown) and a built-in circuit 2, wherein,

[0046] The elastic material layer 1 (not shown in the figure) is disposed on the surface of the synchronous belt teeth to fix and protect the built-in circuit 2;

[0047] The built-in circuit 2 includes a sensor 21, a signal transmission module 22, a parameter adjustment module 23, a power supply module 24, and a data processing module 25. The sensor 21 is located in the middle of the synchronous belt teeth and is communicatively connected to the data processing module 25. The parameter adjustment module 23 is used to adjust the synchronous belt parameters under the control of the data processing module 25 based on the first signal collected and transmitted by the sensor 21.

[0048] The power module 24 is communicatively connected to the sensor 21, the signal transmitting module 22, the parameter adjustment module 23, and the data processing module 25, and is used to provide power to the above modules.

[0049] The power module 24 includes a wireless receiving module 241 and a battery 242. The wireless receiving module 241 includes a wireless receiving coil arranged around the synchronous belt, which receives external electrical energy through wireless power transmission technology and stores it in the battery 242. The battery 242 includes a first rigid shell and a rechargeable cell disposed inside the first rigid shell. The first rigid shell is a hollow cylinder used to protect the rechargeable cell from impact stress and is fixedly arranged along the width direction of the synchronous belt to reduce the bending stress experienced by the synchronous belt during operation.

[0050] The data processing module 25 is communicatively connected to the sensor 21, the signal transmitting module 22, and the parameter adjustment module 23. It receives and processes the first signal collected and transmitted by the sensor 21, generates a second signal through real-time aggregation and processing, and transmits the processed second signal to the outside of the synchronization belt via wireless signal transmission technology through the signal transmitting module 22. This allows an external signal receiving device to obtain the synchronization belt's operating parameters in real-time by acquiring and analyzing the second signal. It can also cooperate with an external adjustment mechanism to adjust the synchronization belt's preload, operating speed, transmission power, and other operating parameters in real-time based on the second signal, thus achieving the technical requirement for intelligent and precise control of the synchronization belt. The specific signal analysis logic is detailed in Embodiment 1 and will not be repeated here. Simultaneously, the data processing module 25 further processes and responds to the first signal collected and transmitted by the sensor 21 to generate a third signal. By sending the third signal to the parameter adjustment module 23, it controls the parameter adjustment module 23 to adjust the synchronization belt parameters based on the first signal collected and transmitted by the sensor 21. The specific synchronization belt parameter adjustment logic is detailed in Embodiment 2 and will not be repeated here.

[0051] The data processing module 25 includes a second rigid housing and a processing circuit disposed inside the second rigid housing. The second rigid housing is a hollow cylinder used to support and protect the internal processing circuit from impact stress, and is fixedly disposed along the width direction of the synchronous belt to reduce the bending stress experienced by the synchronous belt during operation.

[0052] Specifically, the sensor 21 is a piezoelectric ceramic sensor, used to convert the pressure on the synchronous belt teeth into the first signal using the piezoelectric effect. The parameter adjustment module 23 is a piezoelectric ceramic device, located on both sides of the synchronous belt teeth, used to adjust the size by increasing or decreasing according to the third signal based on the inverse principle of the piezoelectric effect, thereby achieving real-time and precise adjustment of the synchronous belt tooth profile and pitch.

[0053] The signal transmitting module 22 can be configured as a cylindrical conductor fixedly arranged along the width direction of the synchronization band, or it can be configured as including a third rigid housing and a transmitting antenna disposed inside the third rigid housing. The third rigid housing is a hollow cylinder used to protect the transmitting antenna from impact stress and is fixedly arranged along the width direction of the synchronization band to reduce the bending stress experienced by the synchronization band during operation.

[0054] It should be noted that the outer diameter, width, and spacing of the hollow cylinder of the first rigid shell, the hollow cylinder of the second rigid shell, the cylindrical conductor of the signal transmitting module 22, and the hollow cylinder of the third rigid shell are all the same, so that the dimensions, weight, strength, stiffness, stress, and other parameters of the synchronous belt of the built-in sensor are all consistent.

[0055] With this configuration, the synchronous belt with built-in sensors, through the sensor 21 located in the teeth of the synchronous belt, can not only acquire the processing and running errors of the synchronous belt in real time, but also adjust the tooth profile and pitch of the synchronous belt in real time and precisely through the parameter adjustment module 23, thereby achieving the goal of high-precision operation of the synchronous belt with built-in sensors. At the same time, the operating data of the synchronous belt can be transmitted to an external system in real time through the signal transmission module 22. In addition, with the cooperation of the external adjustment system, the error adjustment efficiency of the synchronous belt with built-in sensors can be further improved, and the operating accuracy of the synchronous belt can be further improved, fully meeting the technical requirements for intelligent and precise control of the synchronous belt.

[0056] In this invention, the term "upper end" should be understood to include the upper part or top, and "lower end" should be understood to include the lower part or bottom. Both "upper end" and "lower end" only indicate relative arrangement with respect to the accompanying drawings. In this invention, the terms "first" and "second" are merely used to distinguish different structures or functions and do not represent a chronological order or degree of importance.

[0057] The specific embodiments of the present invention have been described in detail above, but they are only examples, and the present invention is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to the technical features of the present invention are also within the scope of the present invention. Therefore, all equivalent transformations and modifications made without departing from the spirit and scope of the present invention should be covered within the scope of the present invention.

Claims

1. A synchronization belt with a built-in sensor, characterized in that, include: An elastic material layer (1) and an embedded circuit (2), wherein, The elastic material layer (1) is disposed on the surface of the synchronous belt teeth to fix and protect the built-in circuit (2). The built-in circuit (2) includes a sensor (21) and a signal transmitting module (22). The sensor (21) is located at the teeth of the synchronous belt and is communicatively connected to the signal transmitting module (22) in a one-to-one correspondence. The signal transmitting module (22) is used to send the first signal collected by the sensor (21) to the outside of the synchronous belt. The built-in circuit (2) also includes a power module (24), which is communicatively connected to the sensor (21) and the signal transmitting module (22) and is used to provide power to the sensor (21) and the signal transmitting module (22); The built-in circuit (2) also includes a data processing module (25), which is communicatively connected to the sensor (21), the power supply module (24) and the signal transmission module (22), and is responsible for receiving and processing the first signal from the sensor (21), and sending the processed second signal through the signal transmission module (22). The built-in circuit (2) also includes a parameter adjustment module (23), which is communicatively connected to the data processing module (25) and is responsible for adjusting the synchronization band parameters according to the third signal sent by the data processing module (25).

2. A synchronization belt with a built-in sensor, characterized in that, include: An elastic material layer (1) and an embedded circuit (2), wherein, The elastic material layer (1) is disposed on the surface of the synchronous belt teeth to fix and protect the built-in circuit (2). The built-in circuit (2) includes a sensor (21) and a parameter adjustment module (23). The sensor (21) is located at the teeth of the synchronous belt and is communicatively connected to the parameter adjustment module (23) in a one-to-one correspondence. The parameter adjustment module (23) is used to adjust the synchronous belt parameters according to the first signal collected and sent by the sensor (21).

3. The synchronization belt with a built-in sensor as described in claim 2, characterized in that, The built-in circuit (2) also includes a power module (24), which is communicatively connected to the sensor (21) and the parameter adjustment module (23) and is used to provide power to the sensor (21) and the parameter adjustment module (23).

4. The synchronization belt with a built-in sensor as described in claim 3, characterized in that, It also includes a data processing module (25), which is communicatively connected to the sensor (21), the power supply module (24) and the parameter adjustment module (23). The data processing module (25) is responsible for receiving and processing the first signal from the sensor (21), generating a third signal, and adjusting the synchronization band parameters through the parameter adjustment module (23) according to the third signal.

5. A synchronization belt with a built-in sensor as described in claim 1 or 2, characterized in that, The sensor (21) is a piezoelectric ceramic sensor, which is disposed in the middle of the synchronous belt teeth or on both sides of the tooth surface, and is used to convert the pressure on the synchronous belt teeth into the first signal.

6. A synchronization belt with a built-in sensor as described in claim 1 or 3, characterized in that, The power module (24) includes a wireless receiving module (241) and / or a battery (242), wherein the wireless receiving module (241) includes a wireless receiving coil arranged around the synchronous belt, and the battery (242) includes a first rigid shell and a rechargeable cell arranged inside the first rigid shell. The first rigid shell is a hollow cylinder and is fixedly arranged along the width direction of the synchronous belt.

7. A synchronization belt with a built-in sensor as described in claim 1 or 4, characterized in that, The parameter adjustment module (23) is located in the middle or on both sides of the synchronous belt teeth, and / or the parameter adjustment module (23) is located between two adjacent synchronous belt teeth, for adjusting the synchronous belt tooth profile and / or tooth pitch according to the third signal.

8. A synchronization belt with a built-in sensor as described in claim 1 or 4, characterized in that, The data processing module (25) includes a second rigid housing and a processing circuit disposed inside the second rigid housing. The second rigid housing is a hollow cylinder and is fixedly disposed along the width direction of the synchronous belt.

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