Belt longitudinal tearing detection device and method

Abstract

The invention discloses a belt longitudinal tearing detection method and device, and belongs to the technical field of belt detection. Aiming at a series of safety problems possibly caused by longitudinal tearing of a belt in a complex environment of an underground coal mine, whether the belt is torn or not is judged by detecting the on-off state of a metal wire buried in the belt, the running condition of the belt can be monitored in real time, potential tearing hidden dangers can be found in time, and the safety of the belt is improved in a wireless communication mode. And belt data is uploaded to a corresponding main controller, and corresponding measures are taken for processing. In addition, the invention provides a wireless power taking and product low power consumption design mode to carry out system overall optimization, a single-battery or battery-free scheme is realized, and the working time of equipment can be ensured to be not less than 5 years. In this way, it can be guaranteed that the belt is in a good running state all the time, continuity and stability of coal transportation are guaranteed, and therefore the overall production efficiency and production safety of a coal mine are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of belt detection, and in particular relates to a device and method for detecting longitudinal tearing of a belt. Background Art

[0002] Belts are critical components in transportation systems. For example, in coal mines, longitudinal belt tears can trigger a series of serious safety issues in the complex underground environment. First, coal could spill and accumulate in the tunnels, disrupting normal transportation routes and potentially burying underground equipment and personnel, causing casualties. Second, if a torn belt continues to operate, it could become entangled with surrounding equipment, causing friction and sparks. The presence of flammable and explosive gases like methane in coal mines can potentially cause catastrophic accidents such as explosions. Detecting longitudinal belt tears can detect them in their early stages and initiate measures, such as emergency shutdowns, to prevent these major safety incidents and safeguard the lives of underground workers and safe coal mine production.

[0003] The existing technology mainly includes mechanical contact detection, image recognition detection and thermal imaging to detect the longitudinal tearing of belts. Mechanical contact detection method: after the belt is torn, the material is spilled. The method determines whether the belt is torn by detecting the scattered material. This method has obvious disadvantages in actual application. It can only detect the belt after it is torn, and cannot predict the belt tearing. Image recognition method: The image of the belt is taken by a camera, and the image data is processed to determine whether the belt is torn. In actual application, the on-site environment is harsh, and dust, water, mud, etc. seriously restrict the use of cameras, lenses and other equipment. Thermal imaging technology: during the operation of the belt, it will rub against the roller material, etc., and the temperature becomes high. There is an obvious temperature edge after the belt is torn, which can be detected by an infrared camera. This solution is expensive and easily affected by environmental interference, and cannot be applied on a large scale. Summary of the Invention

[0004] In view of the fact that longitudinal tearing of belts in the complex environment of underground coal mines may cause a series of safety problems, the present invention provides a device and method for detecting longitudinal tearing of belts, which determines whether the belt is torn by detecting the on / off state of the metal wire buried in the belt.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A belt longitudinal tear detection device, comprising a belt, a belt tear detection module, a wireless gateway module, and a cloud platform;

[0007] The belt is embedded with a metal wire, and the state of the metal wire is detected to determine whether the belt is broken;

[0008] The belt tear detection module determines whether the belt is broken by the state of the metal wire buried in the belt; the circuit board in the belt tear detection module adopts a flexible circuit board;

[0009] The belt tear detection module is connected to the wireless gateway module via wireless communication;

[0010] The wireless gateway module receives the sensing data of the belt tear detection module or sends a wake-up instruction to the belt tear detection module to complete data communication;

[0011] The belt tear detection module regularly sends or receives a wake-up signal from the wireless gateway module and then sends data. The belt tear detection module collects current belt status data according to the regular wake-up instruction of the wireless gateway module, and uploads the collected belt status data to the wireless gateway module in a chain network using a single-hop or multi-hop wireless communication method;

[0012] The cloud platform conducts comprehensive analysis and judgment on the data uploaded by the wireless gateway module.

[0013] The belt tear detection module includes a wireless communication unit, a temperature detection unit, a signal detection unit, a battery or energy collection unit, a main controller, a wireless transmission circuit and a housing;

[0014] The wireless communication technology used by the wireless communication unit includes at least one of Bluetooth, RFID, Lora, NB-IoT, 4G, 5G and Star Flash;

[0015] The data encoding format transmitted by the wireless communication technology includes a start bit, an address bit, a data bit and a check bit;

[0016] The temperature detection unit is used to detect the temperature of the running state of the belt. When the temperature is abnormal, the temperature information is uploaded to the wireless gateway module through the belt tear detection module via wireless communication.

[0017] The signal detection unit relies on the main control IO port or ADC port to detect the state of the metal wire to determine whether the belt is broken. When the metal wire is not broken, the difference between the IO1 / ADC1 port and the IO2 / ADC2 level state and the ADC state value remains unchanged; when the metal wire is broken, the difference between the IO1 / ADC1 and IO2 / ADC2 state values increases, and the belt is torn.

[0018] The belt tear detection module is powered by a battery or an energy collection unit. When the belt thickness exceeds 1 cm, a small-sized battery is used for power supply. When the belt thickness does not exceed 1 cm, an energy collection unit is used for power supply through wireless power supply.

[0019] The metal wire is a flexible metal wire, which is buried in the belt in a single-strand or multi-strand zigzag arrangement mode. The metal wire is any one of copper wire and alloy wire.

[0020] The wireless gateway module includes a wireless communication unit, a wireless gateway unit, an energy transmitting unit, a battery or an energy collection unit, a main controller, a wireless transmission circuit and a housing;

[0021] The wireless communication technology used by the wireless communication unit includes at least one of Bluetooth, RFID, Lora, NB-IoT, 4G, 5G and Star Flash;

[0022] The data encoding format transmitted by the wireless communication technology includes a start bit, an address bit, a data bit and a check bit;

[0023] The battery or energy collection unit supplies power to the wireless gateway module. The battery is a small-sized battery, and the energy collection unit supplies power to the wireless gateway module using a wireless power supply method.

[0024] The energy transmitting unit is used in conjunction with the energy collecting unit. The energy transmitting unit is buried in a belt with a thickness not exceeding 1 cm. The electrical energy signal is converted into an electromagnetic signal through the energy transmitting unit. The energy collecting unit converts electromagnetic energy into electrical energy through a coil to power the wireless gateway module or the belt tear detection module.

[0025] The belt tear detection module and the wireless gateway module are both placed in a housing made of polymer material, sealed with epoxy resin, and meet the IP65 protection level;

[0026] The wireless transmission circuit of the belt tear detection module or the wireless gateway module adopts a circuit board microstrip antenna and is connected to the respective main controllers through a feeder line.

[0027] A variety of sensors are added to the belt tear detection module to achieve multi-parameter detection.

[0028] A method for detecting longitudinal tearing of a belt is disclosed. The method comprises the following steps: a wireless gateway module sends a timed wake-up instruction to a belt tearing detection module via wireless communication. The belt tearing detection module then collects belt temperature data and metal wire status via a temperature detection unit and a signal detection unit. Simultaneously, the belt tearing detection module uploads the collected data to a cloud platform via wireless communication of a chain network. The cloud platform then performs comprehensive analysis and judgment on the obtained data.

[0029] Compared with the prior art, the present invention has the following advantages:

[0030] The present invention determines whether the belt is torn by detecting the on / off state of metal wires embedded in the belt. This allows real-time monitoring of the belt's operating status, promptly identifying potential tearing hazards. This data is then wirelessly transmitted to the corresponding main controller, which then takes appropriate action. This ensures that the belt is always in good operating condition, ensuring the continuity and stability of coal transportation, and thus improving overall production efficiency and safety in coal mines.

[0031] The present invention is powered by batteries or wireless power supply as a whole, adopts a low-power design, and a single battery / wireless power supply can provide a working time of no less than 3 years; the overall protection level meets the IP65, and the design standards refer to mine safety and coal safety design. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 Schematic diagram of the overall device of the present invention; wherein, belt-1, belt tear detection module-201, wireless communication unit-202, wireless gateway module-301, wireless communication unit-302, metal wire-207, belt tear part-2;

[0033] Figure 2 Schematic diagram of the belt tear detection module of the present invention; wherein, the belt tear detection module 201, the wireless communication unit 202, the temperature detection unit 203, the signal detection unit 204, the battery or energy collection unit 205, and the main controller 206;

[0034] Figure 3 Schematic diagram of the wireless gateway module of the present invention; wherein, wireless gateway module-301, wireless communication unit-302, wireless gateway unit-303, energy transmission unit-304, battery or energy collection unit-305, main controller-306;

[0035] Figure 4 Schematic diagram of the signal detection unit of the present invention, wherein the signal detection unit 204, the metal wire 207, and the belt tearing part 2;

[0036] Figure 5 This is a schematic diagram of the installation of a wireless gateway in the wireless power supply method of the present invention, including a belt-1, a belt tear detection module-201, a metal wire-207, and a wireless gateway module-301. DETAILED DESCRIPTION

[0037] To gain a deeper understanding of the present invention, we will provide a comprehensive and detailed description thereof. However, the present invention has various implementations and is not limited to the specific examples listed herein. These examples are presented to enhance a comprehensive understanding of the present disclosure.

[0038] The following describes exemplary embodiments of the present disclosure in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0039] A belt longitudinal tear detection device, the overall diagram is as follows Figure 1 As shown, the device includes a belt 1, a belt tear detection module 201, a wireless gateway module 301, and a cloud platform;

[0040] The belt 1 is embedded with a metal wire 207, and the state of the metal wire 207 is detected to determine whether the belt 1 is broken;

[0041] The belt tear detection module 201 determines whether the belt 1 is broken by the state of the metal wire 207 buried in the belt 1; the circuit board in the belt tear detection module 201 is a flexible circuit board;

[0042] The belt tear detection module 201 is connected to the wireless gateway module 301 via wireless communication;

[0043] The wireless gateway module 301 receives the sensing data of the belt tear detection module 201 or sends a wake-up instruction to the belt tear detection module 201 to complete data communication;

[0044] The belt tear detection module 201 regularly sends or receives a wake-up signal from the wireless gateway module 301 and then sends data. The belt tear detection module 201 collects the current belt status data according to the regular wake-up instruction of the wireless gateway module 301, and uploads the collected belt status data to the wireless gateway module 301 in the form of a chain network using a single-hop or multi-hop wireless communication method;

[0045] The cloud platform performs comprehensive analysis and judgment on the data uploaded by the wireless gateway module 301 .

[0046] The belt tear detection module 201 includes a wireless communication unit 202, a temperature detection unit 203, a signal detection unit 204, a battery or energy collection unit 205, a main controller 206, a wireless transmission circuit and a housing. Figure 2 As shown;

[0047] The wireless communication technology used by the wireless communication unit 202 includes at least one of Bluetooth, RFID, Lora, NB-IoT, 4G, 5G and Star Flash;

[0048] The data encoding format transmitted by the wireless communication technology includes a start bit, an address bit, a data bit and a check bit;

[0049] The temperature detection unit 203 is used to detect the temperature of the belt during operation. When the temperature is abnormal, the belt tear detection module 201 uploads the temperature information to the wireless gateway module 301 via wireless communication.

[0050] The signal detection unit 204 relies on the main control 206 IO port or ADC port to detect the state of the metal wire 207 to determine whether the belt 1 is broken. When the metal wire 207 is not broken, the difference between the IO1 / ADC1 port and the IO2 / ADC2 level state and the ADC state value remains unchanged; when the metal wire 207 is broken, the difference between the IO1 / ADC1 and IO2 / ADC2 state values increases, and the belt 1 is torn. Figure 4 shown.

[0051] The belt tear detection module 201 is powered by a battery or an energy collection unit 205. When the belt thickness exceeds 1 cm, a small-sized battery is used for power supply. When the belt thickness does not exceed 1 cm, an energy collection unit is used for power supply through wireless power supply.

[0052] The metal wire 207 is a flexible metal wire, which is buried in the belt in a single-strand or multi-strand zigzag arrangement. The metal wire 207 is any one of copper wire and alloy wire.

[0053] The wireless gateway module 301 includes a wireless communication unit 302, a wireless gateway unit 303, an energy transmitting unit 304, a battery or energy collection unit 305, a main controller 306, a wireless transmission circuit and a housing. Figure 3 As shown;

[0054] The wireless communication technology used by the wireless communication unit 302 includes at least one of Bluetooth, RFID, Lora, NB-IoT, 4G, 5G and Star Flash;

[0055] The data encoding format transmitted by the wireless communication technology includes a start bit, an address bit, a data bit and a check bit;

[0056] The battery or energy collection unit 305 supplies power to the wireless gateway module 301 . The battery is a small-sized battery. The energy collection unit supplies power to the wireless gateway module 301 using a wireless power supply method.

[0057] The energy transmitting unit 304 is used in conjunction with the energy collecting unit. The energy transmitting unit 304 is buried in a belt with a thickness of no more than 1 cm. The energy transmitting unit 304 converts the electrical energy signal into an electromagnetic signal. The energy collecting unit 305 converts the electromagnetic energy into electrical energy through a coil to power the wireless gateway module 301 or the belt tear detection module 201. The installation position of the wireless gateway is as follows: Figure 5 shown.

[0058] The belt tear detection module 201 and the wireless gateway module 301 are both placed in a housing, which is made of polymer material, sealed with epoxy resin, and meets the IP65 protection level;

[0059] The wireless transmission circuit of the belt tear detection module 201 or the wireless gateway module 301 uses a circuit board microstrip antenna and is connected to the respective main controllers through a feeder line.

[0060] A variety of sensors are added to the belt tear detection module 201 to realize multi-parameter detection.

[0061] A method for detecting longitudinal tearing of a belt is disclosed. The method comprises the following steps: a wireless gateway module 301 sends a timed wake-up instruction to a belt tearing detection module 201 via wireless communication. Subsequently, the belt tearing detection module 201 collects temperature data of the belt and the status of a metal wire 207 via a temperature detection unit 203 and a signal detection unit 204. Simultaneously, the belt tearing detection module 201 uploads the collected data to a cloud platform via wireless communication of a chain network. The cloud platform then performs comprehensive analysis and judgment on the obtained data.

[0062] Those skilled in the art will clearly understand that the specific working processes of the systems, devices, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and for the sake of brevity, they will not be further described here.

[0063] In addition, the functional units in various embodiments of the present invention may be physically independent of each other, or two or more functional units may be integrated together, or all functional units may be integrated into a single processing unit. The above-mentioned integrated functional units may be implemented in the form of hardware, software, or firmware.

[0064] Those skilled in the art will understand that if the integrated functional unit is implemented in software and sold or used as a standalone product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or all or part of it, can be embodied in the form of a software product. This computer software product, stored in a storage medium, includes instructions that cause a computing device (e.g., a personal computer, server, or network device) to execute all or part of the steps of the method described in each embodiment of the present invention when the instructions are executed. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a mobile hard drive, read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the aforementioned method embodiments can be implemented by hardware (e.g., a computing device such as a personal computer, server, or network device) associated with the program instructions. The program instructions can be stored in a computer-readable storage medium. When the program instructions are executed by the processor of the computing device, the computing device executes all or part of the steps of the method described in each embodiment of the present invention.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that within the spirit and principles of the present invention, they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not deviate from the scope of protection of the present invention.

[0066] Any matters not described in detail in this specification are prior art known to those skilled in the art. Although the above description of the present invention is based on specific embodiments to facilitate understanding of the present invention by those skilled in the art, it should be understood that the present invention is not limited to the scope of the specific embodiments. As long as various modifications are within the spirit and scope of the present invention as defined and determined by the appended claims, such modifications will be obvious to those skilled in the art, and all inventions and creations utilizing the concepts of the present invention are protected.

Claims

1. A belt longitudinal tear detection device, characterized in that: The device comprises a belt (1), a belt tear detection module (201), a wireless gateway module (301), and a cloud platform; The belt (1) is embedded with a metal wire (207), and the state of the metal wire (207) is detected to determine whether the belt (1) is broken; The belt tear detection module (201) determines whether the belt (1) is broken by the state of the metal wire (207) buried in the belt (1); the circuit board in the belt tear detection module (201) adopts a flexible circuit board; The belt tear detection module (201) is connected to the wireless gateway module (301) via wireless communication; The wireless gateway module (301) receives the sensing data from the belt tear detection module (201) or sends a wake-up instruction to the belt tear detection module (201) to complete data communication; The belt tear detection module (201) regularly sends or receives a wake-up signal from the wireless gateway module (301) and then sends data; the belt tear detection module (201) collects current belt status data according to the regular wake-up instruction of the wireless gateway module (301), and uploads the collected belt status data to the wireless gateway module (301) in a chain network using a single-hop or multi-hop wireless communication method; The cloud platform performs comprehensive analysis and judgment on the data uploaded by the wireless gateway module (301).

2. A belt longitudinal tear detection device according to claim 1, characterized in that: The belt tear detection module (201) comprises a wireless communication unit (202), a temperature detection unit (203), a signal detection unit (204), a battery or energy collection unit (205), a main controller (206), a wireless transmission circuit, and a housing; The wireless communication technology used by the wireless communication unit (202) includes at least one of Bluetooth, RFID, Lora, NB-IoT, 4G, 5G and Star Flash; The data encoding format transmitted by the wireless communication technology includes a start bit, an address bit, a data bit and a check bit; The temperature detection unit (203) is used to detect the temperature of the belt during operation. When the temperature is abnormal, the temperature information is uploaded to the wireless gateway module (301) via wireless communication through the belt tear detection module (201).

3. A belt longitudinal tear detection device according to claim 2, characterized in that: The signal detection unit (204) relies on the IO port or ADC port of the main control (206) to determine whether the belt (1) is broken by detecting the state of the metal wire (207). When the metal wire (207) is not broken, the difference between the IO1 / ADC1 port and the IO2 / ADC2 level state and the ADC state value remains unchanged; when the metal wire (207) is broken, the difference between the IO1 / ADC1 and IO2 / ADC2 state values increases, and the belt (1) is torn.

4. A belt longitudinal tear detection device according to claim 3, characterized in that: The belt tear detection module (201) is powered by a battery or an energy collection unit (205). When the belt thickness exceeds 1 cm, a small-sized battery is used for power supply. When the belt thickness does not exceed 1 cm, the energy collection unit is used for power supply via wireless power supply.

5. A belt longitudinal tear detection device according to claim 4, characterized in that: The metal wire (207) is a flexible metal wire, which is buried in the belt in a single-strand or multi-strand serpentine arrangement manner, and the metal wire (207) is any one of a copper wire and an alloy wire.

6. The belt longitudinal tear detection device according to claim 5, characterized in that: The wireless gateway module (301) comprises a wireless communication unit (302), a wireless gateway unit (303), an energy transmitting unit (304), a battery or an energy collecting unit (305), a main controller (306), a wireless transmission circuit and a housing; The wireless communication technology used by the wireless communication unit (302) includes at least one of Bluetooth, RFID, Lora, NB-IoT, 4G, 5G and Star Flash; The data encoding format transmitted by the wireless communication technology includes a start bit, an address bit, a data bit and a check bit; The battery or energy collection unit (305) supplies power to the wireless gateway module (301); the battery is a small-sized battery; and the energy collection unit supplies power to the wireless gateway module (301) in a wireless power supply manner.

7. A belt longitudinal tear detection device according to claim 6, characterized in that: The energy transmitting unit (304) is used in conjunction with the energy collecting unit. The energy transmitting unit (304) is buried in a belt with a thickness not exceeding 1 cm. The energy transmitting unit (304) converts an electrical energy signal into an electromagnetic signal. The energy collecting unit (305) converts electromagnetic energy into electrical energy through a coil to supply power to the wireless gateway module (301) or the belt tear detection module (201).

8. The belt longitudinal tear detection device according to claim 7, characterized in that: The belt tear detection module (201) and the wireless gateway module (301) are both placed in a housing, the housing is made of polymer material, is sealed with epoxy resin, and meets the IP65 protection level; The wireless transmission circuit of the belt tear detection module (201) or the wireless gateway module (301) uses a circuit board microstrip antenna and is connected to the respective main controllers via a feeder line.

9. The belt longitudinal tear detection device according to claim 8, characterized in that: A variety of sensors are added to the belt tear detection module (201) to achieve multi-parameter detection.

10. A method for detecting longitudinal tearing of a belt, characterized in that: The method comprises the following steps: the wireless gateway module (301) sends a timed wake-up instruction to the belt tear detection module (201) by wireless communication; the belt tear detection module (201) then collects temperature data of the belt and the state of the metal wire (207) by means of a temperature detection unit (203) and a signal detection unit (204); and the belt tear detection module (201) uploads the collected data to a cloud platform by wireless communication of a chain network, and the cloud platform performs comprehensive analysis and judgment on the obtained data.

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