Power passive wireless intelligent temperature data acquisition device and working method thereof

Abstract

The invention discloses an electric power passive wireless intelligent temperature data acquisition device which comprises an ultrahigh frequency antenna unit and a temperature monitoring fusion device host. The temperature monitoring fusion device host comprises an FR radio frequency module, a data processing module and a communication module, the ultrahigh frequency antenna unit receives temperature data in the form of electromagnetic waves, inputs the temperature data to the FR radio frequency module through a coaxial cable for data analysis, and finally stores the data in the data processing module. And the data is output to a system platform in a wired RS485 or wireless Lora form through the communication module. The device can adaptively adjust the working frequency point, the power and the working polling time of the device according to the parameters of the collected sensor data, realizes comprehensive adaptive working parameters, does not need subsequent manual adjustment and configuration, can simultaneously realize sensing of electromagnetic wave signals returned by a real-time temperature sensor of a measured object, reduces the installation cost of the device, and improves the reliability of the device. The production efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of RFID wireless communication, and in particular relates to an electric power passive wireless intelligent temperature data acquisition device, which is used for RFID temperature monitoring in power grids, switch cabinets and other power industries. Background Art

[0002] High temperatures in the power industry accelerate the aging and thermal decomposition of wire and cable insulation, easily generating open flames and potentially causing fires. Once a fire occurs, it can not only severely damage power equipment and cause widespread power outages, but can also endanger the lives of nearby personnel, resulting in significant economic losses and social impact. Therefore, the power industry requires temperature monitoring and data collection.

[0003] Manual inspections with handheld temperature measurement equipment require checking each device and location individually. This is inefficient when dealing with large numbers of devices and complex wiring, and the inability to obtain real-time temperature data makes it difficult to detect faults in a timely manner. Traditional wired temperature measurement methods require complex wiring, making installation difficult and expensive in confined spaces or complex environments. Furthermore, issues such as aging wiring can introduce new fault risks. Fiber optic temperature measurement requires expensive optical fibers and supporting equipment, resulting in high construction and maintenance costs. Furthermore, impurities easily accumulate on the fiber surface during operation, affecting measurement accuracy and insulation strength.

[0004] Traditional RFID temperature measurement equipment requires manual parameter tuning. Furthermore, long-term operation in an electrically powered environment can be susceptible to electromagnetic interference, leading to mismatched temperature reading parameters and sensor performance, resulting in inability to measure temperature and requiring re-tuning. Consequently, high demands are placed on temperature monitoring devices that are passive, wireless, reliable, and convenient. Therefore, the development of passive, wireless, and intelligent temperature measurement equipment is essential, significantly reducing labor and equipment costs while improving reliability. Summary of the Invention

[0005] In order to overcome the problem that the radio frequency working parameters of existing monitoring devices are fixed and inconvenient to adjust, the present invention provides an electric passive wireless intelligent temperature data acquisition device that can adaptively adjust the device's own working frequency, power, and working polling time according to the parameters of the collected sensor data, thereby achieving fully adaptive working parameters without the need for manual subsequent adjustment of the configuration. It can also simultaneously perceive the electromagnetic wave signals returned by the real-time temperature sensor of the measured object, thereby reducing equipment installation costs and improving production efficiency.

[0006] The present invention is implemented by the following technical solution: an electric passive wireless intelligent temperature data acquisition device, including an ultra-high frequency antenna unit and a temperature monitoring and fusion device host; the temperature monitoring and fusion device host includes an FR radio frequency module, a data processing module and a communication module. The ultra-high frequency antenna unit receives temperature data in the form of electromagnetic waves, and inputs it to the FR radio frequency module through a coaxial cable for data analysis, and finally stores the data in the data processing module, and outputs the data to the system platform in the form of wired RS485 or wireless Lora through the communication module.

[0007] Preferably, the FR radio frequency module adopts the 18000-6C protocol to complete the temperature and ID signal analysis of the RFID temperature tag; the data processing module adopts a high-performance MCU to complete the storage of temperature data and data protocol conversion; the communication module uses wired RS485 communication or wireless Lora long-distance communication to complete the data transmission of the temperature monitoring fusion device, and finally displays it on the system platform.

[0008] Preferably, the UHF antenna unit adopts a PCB microstrip antenna design with a bandwidth index of 300MHz~3GHz, covering the RFID antenna frequency band, a gain index of 3dBi, of which the gain at 902~928MHz reaches about 5dBi, and the UHF antenna unit size is 150*150mm, with a low-profile thickness of 10mm.

[0009] Preferably, the FR radio frequency module integrates advanced RFID temperature sensing technology to accurately collect the ID and temperature information carried by the temperature tag according to the RFID protocol; wherein, RFID follows the 18000-6C protocol specification, and the temperature measurement range depends on the temperature measurement tag, between -40°C and 150°C. The temperature measurement accuracy is quite high, with an error of ±1°C, which can effectively meet diverse application needs, provide reliable temperature data collection support for related fields, and ensure stable and efficient operation of the system.

[0010] Preferably, the data processing module has the ability to store and transform the collected data. In terms of data transmission, on the one hand, it can use the Modbus RTU protocol to efficiently transmit via the RS485 interface, and on the other hand, it can also use the MQTT protocol to stably transmit via the TCP / IP network, thereby ensuring reliable data interaction, meeting diverse transmission needs, and providing solid support for the smooth operation of related systems and data circulation.

[0011] Preferably, the intelligent working time of the temperature data acquisition device can adjust its own radio frequency working time according to the tag test results, thereby avoiding poor working efficiency of the device or overheating of the device.

[0012] Preferably, the intelligent working power of the temperature data acquisition device can adaptively increase the working power according to the number of sensors to be checked, thereby avoiding poor reading results.

[0013] Preferably, the temperature data acquisition device has an intelligent working frequency band, and the temperature reading device can continuously scan all sensors, thereby adjusting the RF working frequency range to meet the requirements of environmental sensors and ensure stable reading data.

[0014] The present invention can adaptively adjust the device's own operating frequency, power, and working polling time according to the parameters of the collected sensor data, thereby achieving fully adaptive working parameters without the need for subsequent manual adjustment of the configuration. It can also simultaneously perceive the electromagnetic wave signal returned by the real-time temperature sensor of the measured object, thereby reducing equipment installation costs and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a block diagram of the layout of the entire equipment of the present invention;

[0016] Figure 2 This is a flowchart of the intelligent radio frequency working time processing of the present invention;

[0017] Figure 3 This is a flowchart of the working power processing of the intelligent radio frequency module of the present invention;

[0018] Figure 4 This is a flow chart of the smart frequency band processing of the present invention;

[0019] Figure 5 This is a flow chart of working data processing of the present invention. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. The specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] like Figure 1-5 As shown, an electric power passive wireless intelligent temperature data acquisition device includes an ultra-high frequency antenna unit and a temperature monitoring and fusion device host; the temperature monitoring and fusion device host includes an FR radio frequency module, a data processing module and a communication module. The ultra-high frequency antenna unit receives temperature data in the form of electromagnetic waves, and inputs the temperature data to the FR radio frequency module through a coaxial cable for data analysis, and finally stores the data in the data processing module, and outputs the data to the system platform in the form of wired RS485 or wireless Lora through the communication module.

[0022] The FR radio frequency module (RFID temperature acquisition module) adopts the 18000-6C protocol to complete the temperature and ID signal analysis of the RFID temperature tag; the data processing module adopts a high-performance MCU to complete the storage of temperature data and data protocol conversion; the communication module uses wired RS485 communication or wireless Lora long-distance communication to complete the data transmission of the temperature monitoring fusion device, and finally displays it on the system platform.

[0023] The UHF antenna unit adopts a PCB microstrip antenna design with a bandwidth index of 300MHz to 3GHz, covering the RFID antenna frequency band, and a gain index of 3dBi, of which the gain at 902-928MHz reaches about 5dBi. The UHF antenna unit size is 150*150mm and the low-profile thickness is 10mm.

[0024] The FR radio frequency module integrates advanced RFID temperature sensing technology to accurately collect the ID and temperature information carried by the temperature tag according to the RFID protocol. Among them, RFID follows the 18000-6C protocol specification. The temperature measurement range is determined by the temperature measurement tag, between -40°C and 150°C. The temperature measurement accuracy is very high, with an error of ±1°C, which can effectively meet diverse application needs, provide reliable temperature data collection support for related fields, and ensure stable and efficient system operation.

[0025] The data processing module has the ability to store and transform the collected data. In terms of data transmission, on the one hand, it can use the Modbus RTU protocol to efficiently transmit via the RS485 interface, and on the other hand, it can also use the MQTT protocol to stably transmit via the TCP / IP network, thereby ensuring reliable data interaction, meeting diverse transmission needs, and providing solid support for the smooth operation of related systems and data flow.

[0026] like Figure 2 As shown, the intelligent working time of the temperature data acquisition device reads the sensor data through the set working time, increases or decreases the subsequent RF module working time according to the reading results, and can adjust its own RF working time according to the tag test results, thereby avoiding poor equipment working efficiency or overheating of the equipment.

[0027] like Figure 3 As shown, the intelligent working power of the temperature data acquisition device determines the working power of the subsequent RF module by whether the sensors read within the specified time are complete. The working power can be adaptively increased according to the number of sensors checked to avoid poor reading results.

[0028] like Figure 4As shown in the figure, the intelligent working frequency band of the temperature data acquisition device scans the effective frequency point of each sensor and then summarizes the overall RF module working frequency band. The temperature reading device can continuously scan all sensors, thereby adjusting the RF working frequency range to meet the requirements of environmental sensors and ensure stable reading data.

[0029] RFID wireless temperature measurement technology, also known as radio frequency identification wireless temperature measurement technology, is a wireless temperature measurement method that utilizes radio frequency signal transmission. In this technology system, the transmitter emits a wireless signal, which then establishes a communication connection with the receiver, thereby achieving remote, non-contact, and accurate temperature measurement. The key to RFID wireless temperature measurement technology is the RFID chip, which converts the collected temperature information into an electrical signal and transmits the temperature data to a reader / writer via wireless communication technology. The reader / writer then transmits the data to a computer for subsequent processing and analysis, providing accurate and timely temperature data support for relevant application scenarios, demonstrating its unique value and advantages in many fields.

[0030] The present invention adopts RFID wireless temperature measurement technology to achieve fully adaptive working parameters without the need for manual subsequent configuration adjustment; the appropriate working parameters can be adjusted automatically according to the working environment; the electromagnetic field in the power environment affects the sensor and the temperature measuring equipment over time, and the single working parameter of the temperature measuring equipment needs to be adjusted at any time. This set of devices can reduce the number of adjustments, saving labor costs and time costs.

[0031] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and alterations may be made to the embodiments without departing from the principles and spirit thereof, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An electric passive wireless intelligent temperature data acquisition device, characterized by: It includes an ultra-high frequency antenna unit and a temperature monitoring fusion device host; the temperature monitoring fusion device host includes an FR radio frequency module, a data processing module and a communication module. The ultra-high frequency antenna unit receives temperature data in the form of electromagnetic waves, and inputs it to the FR radio frequency module through a coaxial cable for data analysis, and finally stores the data in the data processing module, and outputs the data to the system platform in the form of wired RS485 or wireless Lora through the communication module.

2. The power passive wireless intelligent temperature data acquisition device according to claim 1, characterized in that: The FR radio frequency module adopts the 18000-6C protocol to complete the temperature and ID signal analysis of the RFID temperature tag; the data processing module adopts a high-performance MCU to complete the storage of temperature data and data protocol conversion; the communication module uses wired RS485 communication or wireless Lora long-distance communication to complete the data transmission of the temperature monitoring fusion device, and finally displays it on the system platform.

3. The power passive wireless intelligent temperature data acquisition device according to claim 1, characterized in that: The UHF antenna unit adopts a PCB microstrip antenna design with a bandwidth index of 300MHz to 3GHz, covering the RFID antenna frequency band, and a gain index of 3dBi, of which the gain at 902-928MHz reaches about 5dBi. The UHF antenna unit size is 150*150mm and the low-profile thickness is 10mm.

4. The power passive wireless intelligent temperature data acquisition device according to claim 1, characterized in that: The FR radio frequency module integrates advanced RFID temperature sensing technology to accurately collect the ID and temperature information carried by the temperature tag according to the RFID protocol. Among them, RFID follows the 18000-6C protocol specification. The temperature measurement range is determined by the temperature measurement tag, between -40°C and 150°C. The temperature measurement accuracy is very high, with an error of ±1°C, which can effectively meet diverse application needs, provide reliable temperature data collection support for related fields, and ensure stable and efficient system operation.

5. The power passive wireless intelligent temperature data acquisition device according to claim 1, characterized in that: The data processing module has the ability to store and transform the collected data. In terms of data transmission, on the one hand, it can use the Modbus RTU protocol to efficiently transmit via the RS485 interface, and on the other hand, it can also use the MQTT protocol to stably transmit via the TCP / IP network, thereby ensuring reliable data interaction, meeting diverse transmission needs, and providing solid support for the smooth operation of related systems and data flow.

6. The power passive wireless intelligent temperature data acquisition device according to claim 2, characterized in that: The intelligent working time of the temperature data acquisition device can adjust its own radio frequency working time according to the tag test results, thereby avoiding poor working efficiency of the device or overheating of the device.

7. The power passive wireless intelligent temperature data acquisition device according to claim 1, characterized in that: The intelligent working power of the temperature data acquisition device can adaptively increase the working power according to the number of sensors to avoid poor reading results.

8. The power passive wireless intelligent temperature data acquisition device according to claim 1, characterized in that: The temperature data acquisition device has an intelligent working frequency band, and the temperature reading device can continuously scan all sensors, thereby adjusting the RF working frequency range to meet the requirements of environmental sensors and ensure stable reading data.

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