5G self-powered temperature vibration monitoring device

Abstract

The invention relates to the field of equipment temperature vibration measurement, in particular to a 5G self-powered temperature vibration monitoring device which comprises a thermoelectric module, a communication box and acceleration sensor probes, a battery is arranged in the communication box, and the communication box is connected with the acceleration sensor probes through coaxial cables. A probe of the temperature vibration sensor is fixed on the surface of tested equipment in a magnetic attraction manner; the communication box is coaxially connected with the thermoelectric module, and the thermoelectric module generates electric quantity by using heat generated by the surface of equipment based on a heat-to-electricity basic principle and charges a battery in the communication box. According to the device, the temperature difference power generation device and the communication device are arranged, the problems of equipment temperature vibration signal measurement lightweight and data transmission safety actually encountered in a nuclear power site are solved, meanwhile, a thermoelectric power source is adopted for supplying power to the sensor in an on-site power taking mode, and the problem of power consumption of a 5G sensor is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of device temperature and vibration measurement, in particular to a 5G self-powered temperature and vibration monitoring device. BACKGROUND

[0002] There are a large number of rotating machinery and pipeline equipment in nuclear power plants, which need to be regularly inspected to ensure that their operating conditions meet the use requirements. Currently, the daily state evaluation is usually carried out by manually carrying portable acceleration acquisition devices for on-site measurement. This method is inefficient and cannot meet the real-time state monitoring requirements, and cannot timely detect abnormal equipment states. The on-line vibration measurement device is deployed on the surface of the equipment, which requires a large number of signal lines or power lines for transmission, and the conditions on site may not meet the construction requirements. This method is high in cost and complex.

[0003] In the prior art, wireless acceleration sensors can solve the problem of dependence on manual inspection to a certain extent, but the power supply problem of the sensors still limits the use and deployment of wireless sensors. Usually, the sensors need to be removed and the batteries need to be replaced every few months, which is high in daily maintenance cost. At the same time, public network 4G public network is used for signal transmission, and the data reliability cannot be satisfied. SUMMARY

[0004] The present application provides a 5G self-powered temperature and vibration monitoring device to solve the problem of power supply maintenance and data reliability of the existing wireless monitoring device.

[0005] The technical scheme of the present application is as follows:

[0006] The present application provides a 5G self-powered temperature and vibration monitoring device, which includes a thermoelectric module, a communication box and a temperature and vibration sensor. The communication box is built-in battery, the communication box is connected with several temperature and vibration sensors through coaxial cable, and the temperature and vibration sensor probe is fixed on the surface of the measured equipment by magnetic attraction. The communication box is connected with the thermoelectric module through coaxial cable, the thermoelectric module generates electricity based on the basic principle of heat generation, and the thermoelectric module charges the battery in the communication box.

[0007] In some embodiments, the thermoelectric module includes a bottom magnet, a heat-conducting block, a thermoelectric material and a heat dissipation fin. The thermoelectric material is provided with a heat dissipation fin on the outside, a heat-conducting block is provided at the bottom of the thermoelectric material, and a bottom magnet is provided on the outside of the heat-conducting block. The bottom magnet is used to fix the thermoelectric module on the surface of the equipment, the heat-conducting block transmits the heat of the equipment to the thermoelectric material, and the thermoelectric material generates temperature difference with the air to generate electricity.

[0008] In some embodiments, the thermoelectric module is also provided with a cable interface and a cable sheath, the cable interface is arranged at the bottom of the thermoelectric module, and the cable interface is used for connecting the communication box with the coaxial cable; the cable sheath is arranged on the coaxial cable, and the cable sheath is used for protecting the coaxial cable; the heat dissipation fin is made of high thermal conductivity materials such as aluminum or copper.

[0009] In some embodiments, the temperature and vibration sensor probe is reinforced by high-temperature glue to connect the probe and the device, the temperature and vibration sensor probe adopts a three-axis design, and the temperature and vibration analog signals collected by the temperature and vibration sensor probe are converted into digital signals by the communication box.

[0010] In some embodiments, the communication box is provided with a power management module, a data processing module and a 5G communication module, the power management module and the thermoelectric module generate electric energy for storage and management, the data processing module processes and converts the temperature and vibration signals collected by the temperature and vibration sensor into digital signals, and judges the running state of the device; the 5G communication module sends the temperature and vibration data to the terminal through the 5G private network.

[0011] In some embodiments, the power management module includes a lithium battery and a power management circuit, the power management circuit is connected with the thermoelectric module through the coaxial cable, and the thermoelectric module charges the lithium battery pack through the power management circuit; the power management circuit adopts a micro-power boost charging chip, a plurality of resistors are arranged in the power management circuit to divide the voltage of the lithium battery, and an analog-to-digital converter pin is connected to monitor the voltage state of the lithium battery; the lithium battery supplies power to the device.

[0012] In some embodiments, the processing of the temperature and vibration signals by the data processing module includes filtering and amplification, the data processing module adopts a low-noise operational amplifier, the data processing module receives the full-differential transmission of the temperature and vibration signals from the analog-to-digital conversion, suppresses the common-mode noise, and adopts a double-channel transmission mode to realize physical isolation of high and low frequency signals; the data processing module compresses the temperature and vibration signals by using GZIP compression technology and transmits them to the 5G communication module.

[0013] In some embodiments, the 5G communication module adopts a double-antenna to transmit the temperature and vibration signals, the 5G communication module is provided with a capacitor matrix, and each capacitor of the capacitor matrix is configured with a special ground pin; the 5G communication module sets a semiconductor switch to change the equivalent capacitance in the circuit, adjusts the resonance point of the circuit in real time, and realizes dynamic frequency response adjustment.

[0014] In some embodiments, the communication box is provided with a thermoelectric power cable interface, a temperature and vibration sensor cable interface, a 5G radio frequency antenna and a fixed magnet, the thermoelectric power cable interface is used for connecting the thermoelectric module with the coaxial cable, the temperature and vibration sensor cable interface is used for connecting the temperature and vibration sensor with the coaxial cable, the 5G radio frequency antenna is used for transmitting the temperature and vibration data, and the fixed magnet is used for fixing the communication box.

[0015] In some embodiments, the device further comprises a terminal, which receives the temperature and vibration data sent by the 5G communication module, and completes the decoupling of compressed data, and carries out data analysis and fault positioning in combination with an intelligent analysis algorithm; the terminal is used for controlling the self-powered temperature and vibration monitoring device, and a control signal is sent to the communication box through 5G.

[0016] The implementation of the present application has the following beneficial effects:

[0017] The present application provides a 5G self-powered temperature and vibration monitoring device suitable for special industrial scenes such as nuclear power. The device innovatively integrates a thermoelectric power generation module, which can generate power on site from the temperature difference between the device surface and the environment, effectively solving the problem of short battery life of traditional wireless sensors that need to be replaced regularly. At the same time, the device uses 5G communication technology to meet the demand for high-speed and low-latency transmission of temperature and vibration signals, not only realizing the lightweight and wiring-free deployment of the measuring device, but also enhancing the security of data transmission through local data processing and other mechanisms. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A topological schematic diagram of a 5G self-powered temperature and vibration monitoring device is provided for the embodiments of the present application;

[0019] Figure 2 A communication box schematic diagram of a 5G self-powered temperature and vibration monitoring device is provided for the embodiments of the present application;

[0020] Figure 3 A thermoelectric module schematic diagram of a 5G self-powered temperature and vibration monitoring device is provided for the embodiments of the present application;

[0021] Figure 4 A top view of a thermoelectric module of a 5G self-powered temperature and vibration monitoring device is provided for the embodiments of the present application;

[0022] Figure 5 A communication box signal transmission diagram of a 5G self-powered temperature and vibration monitoring device is provided for the embodiments of the present application;

[0023] Figure 6 A schematic diagram of a 5G self-powered temperature and vibration monitoring device is provided for the embodiments of the present application;

[0024] Figure 7 A work flow diagram of a 5G self-powered temperature and vibration monitoring device is provided for the embodiments of the present application;

[0025] Reference signs are explained as follows: 1, heat dissipation fin; 2, bottom magnet; 3, heat conduction block; 4, cable interface; 5, cable sheath; 6, thermoelectric material; 7, thermoelectric power cable interface; 8, temperature and vibration sensor cable interface; 9, 5G radio frequency antenna; 10, fixed magnet; 11, temperature and vibration sensor; 12, thermoelectric module; 13, communication box; 14, coaxial cable. DETAILED DESCRIPTION

[0026] The technical solutions of the present application will be described clearly and completely below in combination with the drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] As shown in the drawings, Figures 1 to 7 The present application proposes a 5G self-powered temperature and vibration monitoring device, which comprises a thermoelectric module 12, a 5G communication box 13, and a temperature and vibration sensor 11. The communication box 13 is built-in with a lithium battery, the communication box 13 is connected with a plurality of temperature and vibration sensors 11 through a coaxial cable 14, the temperature and vibration sensor 11 probe is fixed on the surface of the measured equipment by magnetic attraction, the communication box 13 is connected with the thermoelectric module 12 through a coaxial cable, the thermoelectric module 12 generates electricity based on the basic principle of heat generating electricity by using the heat generated on the surface of the equipment, the thermoelectric module 12 charges the lithium battery in the communication box 13 to complete the energy storage, and provides power for the data processing module and the 5G communication module; after receiving the vibration signal collected by the acceleration probe, the data processing module and the 5G communication module complete the related processing, and then send the signal to the terminal user through the special network by using the 5G communication module.

[0028] The thermoelectric module 12 comprises a bottom magnet 2, a heat-conducting block 3, a thermoelectric material 6, and a heat dissipation fin 1, the thermoelectric material 6 is provided with the heat dissipation fin 1 on the outer side, the thermoelectric material 6 is provided with the heat-conducting block 3 at the bottom, the heat-conducting block 3 is provided with the bottom magnet 2 on the outer side, the thermoelectric power module is fixed on the surface of the equipment through the bottom magnet 2, and the bottom heat-conducting block 3 directly contacts the surface of the equipment to transfer the heat generated by the equipment to the thermoelectric material 6. The thermoelectric material 6 directly contacts the metal fin, the metal fin is in full contact with the air due to the special structure, and heat dissipation is performed. The thermoelectric material 6 generates a temperature difference with the outside air, and the thermoelectric power generates an electromotive force by using the Seebeck effect to provide energy input for the rear-end 5G signal box. The heat dissipation fin 1 is made of high-thermal-conductivity materials such as aluminum or copper, which can rapidly cool down and expand the temperature difference between the hot end and the environment to improve the power generation efficiency. When the motor or pump and other equipment are in normal operation, a temperature difference of more than 20 degrees Celsius will be generated on the surface, which can stably generate heat source. The thermoelectric module 12 is also provided with a cable interface 5 and a cable sheath 6, the cable interface 5 is arranged at the bottom of the thermoelectric module 12, the cable interface 5 is used for connecting the communication box 13 through the coaxial cable 14, and the cable sheath 6 is arranged on the coaxial cable 14, and the cable sheath 6 is used for protecting the coaxial cable 14.

[0029] The temperature and vibration sensor 11 probe is fixed on the surface of the motor, pump or pipeline equipment by magnetic attraction, and is reinforced at the bottom of the probe by high-temperature glue, so as to prevent the probe from falling off due to vibration of the equipment and avoid adverse effects on the equipment itself. The probe adopts a three-axis design scheme to convert the temperature and vibration analog signals collected by the temperature and vibration probe into digital signals, and the signals can be led out through the coaxial cable and transmitted.

[0030] The 5G communication box 13 is externally provided with a thermoelectric power cable interface 7, a temperature and vibration sensor cable interface 8, a 5G radio frequency antenna 9 and a fixed magnet 10. The thermoelectric power cable interface 7 is used to connect the thermoelectric module 12 with the coaxial cable 14, the temperature and vibration sensor cable interface 8 is used to connect the temperature and vibration sensor 11 with the coaxial cable 14, the 5G radio frequency antenna 9 is used to send temperature and vibration data, and the fixed magnet 10 is used to fix the communication box 13.

[0031] The 5G communication box 13 contains a power management module, a data processing module and a 5G communication module. The power management module stores and manages the electric energy generated by the thermoelectric module 12, the power management module charges the lithium battery in the communication box 13 through the micro-power charging component, and can set a timing task to automatically start and stop the power supply of the sensor, further reducing the overall power of the equipment. The data processing module filters, amplifies and converts the temperature and vibration signals collected by the temperature and vibration sensor 11 into digital signals, and reduces the data size through GZIP compression technology to reduce the power consumption required for subsequent data transmission. At the same time, the data processing module calculates the characteristic values of the original data to quickly judge the running state of the equipment; the 5G communication module sends the compressed temperature and vibration data to the engineer terminal through the 5G private network. The terminal software completes data processing, analyzes the vibration data spectrum waveform, and accurately identifies the equipment fault.

[0032] The power management module includes a lithium battery pack and a power management circuit. The thermoelectric module 12 power is connected to the power management circuit to charge the lithium battery. The power management circuit uses a micro-power boost charging chip to boost the electromotive force generated by the thermoelectric power source to improve the charging speed of the lithium battery; when the lithium battery pack is fully charged, the hot spot power is filtered and stabilized by the circuit, and then directly powers the signal conditioning module and the 5G communication module; the power management circuit uses multiple resistors to divide the battery voltage and connects the ADC pin to monitor the lithium battery voltage state.

[0033] The data processing module completes the conditioning of the temperature and vibration signals, including filtering, amplification, etc. The signals include high-frequency vibration signals and low-frequency temperature signals, and a full-differential architecture is adopted for differential transmission from signal reception to ADC, thereby suppressing common-mode noise. Meanwhile, a double-channel transmission mode is constructed on the circuit board to ensure physical isolation of high and low frequency signals and avoid signal cross interference. Low-noise operational amplifiers and high-order filters are used to reduce signal interference, and the temperature and vibration signals are compressed by GZIP compression technology to complete raw data compression, and finally transmitted to the 5G communication module.

[0034] The 5G communication module completes the sending of temperature and vibration signals and the receiving of upstream control signals. A dual-antenna technology is adopted to realize spatial multiplexing and improve data transmission efficiency. The 5G communication module is provided with 19 independent capacitors to form a capacitor matrix, each capacitor is provided with a special GND pin to form a star-shaped grounding structure to reduce noise. The 5G communication module uses MOSFIT switch groups to switch different capacitor combinations to change the equivalent capacitance of the circuit, thereby adjusting the LC circuit resonance frequency to realize dynamic frequency response adjustment.

[0035] The terminal receives the temperature and vibration data sent by the 5G communication module and completes the decoupling of compressed data, and performs data analysis and fault positioning in combination with intelligent analysis algorithms. Meanwhile, engineers can complete the related configuration of the self-powered temperature and vibration monitoring device on the terminal, such as data acquisition mode, sensor acquisition frequency, data transmission interval, and sleep strategy, and complete the configuration delivery to the 5G communication box 13 through the 5G signal.

[0036] The application provides a 5G self-powered temperature and vibration monitoring device suitable for special industrial scenes such as nuclear power. The device innovatively integrates a thermoelectric power generation module, which can generate power from the temperature difference between the surface of the equipment and the environment, effectively solving the problem of short battery life of traditional wireless sensors and the need for regular replacement. At the same time, the device uses 5G communication technology to meet the demand for high-speed and low-latency transmission of temperature and vibration signals, realizing the lightweight and wiring-free deployment of the measuring equipment, and enhancing the security of data transmission through local data processing and other mechanisms. In summary, the monitoring device integrated with advanced energy harvesting technology, multi-functional sensing, 5G communication and intelligent analysis not only solves the specific pain points of power supply and data transmission in the nuclear power industry, but also represents a new paradigm of maintenance-free, high-security and intelligent equipment state monitoring, providing strong technical support for predictive maintenance and intelligent upgrading of industrial equipment.

[0037] The above embodiments only express several embodiments of the application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent of the application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the application, a number of modifications and improvements can be made, which are within the scope of protection of the application. Therefore, the protection scope of the patent of the application should be subject to the appended claims.

Claims

1. A 5G self-powered temperature and vibration monitoring device, characterized in that, The device comprises a thermoelectric module (12), a communication box (13) and a temperature and vibration sensor (11), the communication box (13) is built-in battery, the communication box (13) is connected with several temperature and vibration sensors (11) through coaxial cable (14), the temperature and vibration sensor (11) probe is fixed on the surface of the measured equipment by magnetic attraction; the communication box (13) is connected with the thermoelectric module (12) through coaxial, the thermoelectric module (12) generates electricity based on the basic principle of heat generating electricity by using the heat generated by the surface of the equipment, and the thermoelectric module (12) charges the battery in the communication box (13). 2.The 5G self-powered temperature and vibration monitoring device of claim 1, wherein, The thermoelectric module (12) comprises a bottom magnet (2), a heat conducting block (3), a thermoelectric material (6) and a heat dissipation fin (1), the outer side of the thermoelectric material (6) is provided with a heat dissipation fin (1), the bottom of the thermoelectric material (6) is provided with a heat conducting block (3), the outer side of the heat conducting block (3) is provided with a bottom magnet (2), the bottom magnet (2) is used for fixing the thermoelectric module (12) on the surface of the equipment, the heat conducting block (3) transmits the heat of the equipment to the thermoelectric material (6), and the thermoelectric material (6) generates temperature difference with air to realize power generation. 3.The 5G self-powered temperature and vibration monitoring device of claim 2, wherein, The thermoelectric module (12) is also provided with a cable interface (5) and a cable sheath (6), the cable interface (5) is arranged at the bottom of the thermoelectric module (12), the cable interface (5) is used for connecting the communication box (13) with the coaxial cable (14), the cable sheath (6) is arranged on the coaxial cable (14), and the cable sheath (6) is used for protecting the coaxial cable (14); the heat dissipation fin (1) is made of high thermal conductivity materials such as aluminum or copper. 4.The 5G self-powered temperature and vibration monitoring device of claim 3, wherein, The temperature and vibration sensor (11) probe is reinforced by high-temperature glue to connect the probe and the equipment, the temperature and vibration sensor (11) probe adopts three-axis design, and the temperature and vibration analog signal collected by the temperature and vibration sensor (11) probe is converted into digital signal by the communication box (13). 5.The 5G self-powered temperature and vibration monitoring device of claim 4, wherein, The communication box (13) is built-in power management module, data processing module and 5G communication module, the power management module stores and manages the electric energy generated by the thermoelectric module (12), the data processing module processes and converts the temperature and vibration signals collected by the temperature and vibration sensor (11) into digital signals, and judges the running state of the equipment; the 5G communication module sends the temperature and vibration data to the terminal through the 5G private network. 6.The 5G self-powered temperature and vibration monitoring device of claim 5, wherein, The power management module comprises a lithium battery and a power management circuit, the power management circuit is connected with the thermoelectric module (12) through the coaxial cable (14), the thermoelectric module (12) charges the lithium battery pack through the power management circuit; the power management circuit adopts a micro-power boost charging chip, a plurality of resistors are used to divide the voltage of the lithium battery, and an analog-to-digital converter pin is connected, so as to monitor the voltage state of the lithium battery; the lithium battery supplies power for the device. 7.The 5G self-powered temperature and vibration monitoring device of claim 6, wherein, The data processing module includes filtering and amplification of the temperature and vibration signal, the data processing module uses a low-noise operational amplifier, the data processing module receives the temperature and vibration signal from the full-differential transmission of the analog-to-digital conversion, suppresses the common-mode noise, the data processing module uses a double-channel transmission mode to realize physical isolation of high and low frequency signals; the data processing module uses GZIP compression technology to compress the temperature and vibration signal and transmit it to the 5G communication module. 8.The 5G self-powered temperature and vibration monitoring device of claim 7, wherein, The 5G communication module uses double antennas to transmit the temperature and vibration signal, the 5G communication module sets a capacitance matrix, each capacitance of the capacitance matrix is configured with a dedicated ground pin; the 5G communication module sets a semiconductor switch to change the equivalent capacitance in the circuit, adjusts the circuit resonance point in real time, and realizes dynamic frequency response adjustment. 9.The 5G self-powered temperature and vibration monitoring device of claim 8, wherein, The communication box (13) is externally provided with a thermoelectric power supply cable interface (7), a temperature and vibration sensor cable interface (8), a 5G radio frequency antenna (9) and a fixed magnet (10), the thermoelectric power supply cable interface (7) is used for connecting the coaxial cable (14) with the thermoelectric module (12), the temperature and vibration sensor cable interface (8) is used for connecting the coaxial cable (14) with the temperature and vibration sensor (11), the 5G radio frequency antenna (9) is used for sending temperature and vibration data, and the fixed magnet (10) is used for fixing the communication box (13). 10.The 5G self-powered temperature and vibration monitoring device of claim 9, wherein, The device further comprises a terminal, which receives the temperature and vibration data sent by the 5G communication module, decouples the compressed data, and analyzes the data and locuses the fault by combining an intelligent analysis algorithm; the terminal is used for controlling the self-powered temperature and vibration monitoring device, and the control signal is sent to the communication box (13) by 5G.

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