The RFID temperature logger plays a pivotal role in our wireless temperature measurement system, delivering customized monitoring solutions for coal mining’s complex electrical networks. This system continuously tracks equipment temperature through advanced RFID-based loggers that wirelessly transmit data to collection hosts via 2.4GHz/433MHz RF communication, before being processed by central monitoring platforms.
Coal mine substation is mainly responsible for the power supply task of the whole mine, in the past, the power supply system mostly relies on manual inspection to detect the fault point of heat, but it is difficult to realize the detection of temperature in the high-voltage cabinets with strong closure under the adverse weather conditions. With the increase of load and the need for safe production, guaranteeing the safety and reliability of power supply is a necessary condition for safe production.
Problems in the power supply system
Through the statistical analysis of a large number of power accidents, the direct cause of power supply failure is mainly due to the internal contacts of all kinds of high- and low-voltage switchgear, transformers, bus bars, cable joints, etc., due to poor production quality, crimping is not tight, the material is aging, the fatigue of the spring rust caused by the contact resistance increases, and the joints overheat when the load is increased, or even burned through. The quality of the joints can only be found in the operation, and the longer the operation time, the more likely to overheat and burn through the accident. In order to these easy to heat the contacts, joints, power equipment for tracking and monitoring, substations need to install wireless temperature measurement of the early warning system, that is, in each of the need to monitor the point of each installation of a temperature sensor, temperature sensors to pick up the temperature converted to wireless signals sent to the wireless receiving terminal, the wireless receiving terminal to complete the conversion of the data, and the panel display the measured temperature or by the temperature measurement workstation display and storage. The data is converted by the wireless receiving terminal and the measured temperature is displayed on the panel or displayed and stored by the temperature measuring workstation.
RFID Read Write Device
The use of RFID wireless temperature measurement system can be based on the coal mining industry complex power distribution network to provide different wireless temperature measurement program, real-time monitoring of the temperature of the electrical equipment itself. Wireless communication is usually used in conjunction with receiving terminals, communication serial ports, electronic computers, etc. The wireless temperature measurement sensor transmits temperature data to the wireless temperature measurement centralized collection host through RFID technology, and then uploads the data to the wireless temperature measurement system through different communication channels. Applicable to all kinds of outdoor, high temperature, humidity, dust, high pressure, inconvenient wiring or on-site power supply can not provide a variety of special measurement and control occasions. The system solves the cost of on-site installation wiring, to overcome the impact of the installation of complex environments, realizing the real-time online monitoring of the temperature of the electrical equipment itself.
RIFD wireless radio frequency identification technology through radio waves without contacting the rapid information exchange and storage technology, through wireless communication combined with data access technology, and then connected to the database system, to realize the non-contact bidirectional communication, so as to achieve the purpose of identification, for data exchange, in series, an extremely complex system. In the recognition system, realizes the electronic label read-write and the communication through the electromagnetic wave. According to the communication distance, may divide into the near field and the far field, for this reason reads/writes the data exchange method between the equipment and the electronic label also correspondingly to be divided into the load modulation and the backscatter modulation.
The RIFD wireless radio frequency recognition technology through the radio wave does not contact the rapid information exchange and the storage technology, through the wireless communication combined with the data access technology, then connects the database system, but realizes the non-contact two-way communication, thus achieves the recognition the purpose, is used in the data exchange, the series links up an extremely complex system. In the recognition system, realizes the electronic label read-write and the communication through the electromagnetic wave. According to the communication distance, may divide into the near field and the far field, for this reason reads/writes the data exchange method between the equipment and the electronic label also correspondingly to be divided into the load modulation and the backscatter modulation.
The complete RFID system consists of read-write (Reader), electronic tags (Tag) and data management system three parts.
In the traditional RFID chip embedded in high-precision ultra-low-power (1 micro-watt) temperature sensor chip, and built-in 512-bit erasable non-volatile data storage unit for storing user information and other data. The RF chip communication interface supports EPC Global C1G2 v1.2 communication interface protocol, users can read the chip in addition to obtaining the general ID number, while access to instant temperature information. Measurement range can reach -40 to +125 degrees Celsius, room temperature single-point calibration error of 1 degree, and in the 35 to 42 degrees Celsius when the error can be less than 0.1 degrees, the chip has good consistency.
Passive wireless temperature measurement
Wide temperature measurement range, high precision
Real-time effect, stable and reliable
Can withstand high temperature environment of more than 220 ℃
Anti-metal design, can meet the metal surface temperature measurement
Meet a wide range of industrial applications
Easy to install and debug
Low operation and maintenance costs