Based on wireless temperature measurement technology, a passive wireless temperature measurement system for power equipment first detects the surface temperature of the device through a temperature sensor, and then transmits the temperature signal to a data communication terminal through a wireless radio frequency communication method, and then transmits the temperature signal through a GPRS network or an integrated data network. The temperature data acquired by the data communication terminal is transmitted to the monitoring computer in the center of the main station system to achieve wireless temperature measurement. The system is used for on-line temperature measurement of switchgear and distribution equipment in substations. It uses radio frequency data acquisition to obtain temperature sensor information through data communication terminals, and uploads data to regional master stations and provincial temperature measurement data centers via integrated data network or mobile internet. Users can also inquire the temperature information of the device through the Internet, and at the same time support the real-time short message alert of the monitoring point over temperature. Wireless passive temperature collector system features   Passive wireless: The temperature sensor uses electromagnetic induction to take power and transmits temperature information through radio frequency wireless communication. Better than high-temperature lithium battery power supply in terms of safety, service life, and work range;   Easy to install: The system only has two parts: a wireless temperature sensor and a data communication terminal. It is not necessary to install a receiver on each switch cabinet. Only a data communication terminal can be installed in the power distribution room. The wireless temperature sensor wirelessly communicates directly with the communication terminal of the substation, eliminating the need for a collector. Therefore, the installation is very simple. A 220kV substation can complete construction work within 2 hours.   Flexible master station system: A wireless temperature measurement master station platform can be built on the power company's intranet, and the website and port are announced on the external network. Users can access system-related data through the Internet. Customers in different regions check their own data based on their own authority. The main station system integrates data from each substation into a single platform, allowing users to easily access relevant data.   Timely SMS notification: When the temperature exceeds the limit, the device can automatically send a text message to the device owner's mobile phone, so that the information can be communicated in a timely manner and abnormal alarms.   Wireless passive temperature collector back-end system   The real-time on-line monitoring and management analysis software of the power equipment installed on the monitoring system computer can realize real-time temperature display, historical data recording and comparison analysis, temperature curve inspection, system diagram display, warning and alarm, and full-function recording of operating status. It can effectively help the operator to monitor and analyze the temperature change of the high pressure equipment monitoring point and predict the location of the fault in time, thus ensuring the safe operation of the high voltage equipment.   1) The main station system mainly implements functions such as data collection and display, pre-alarm, fault location, and SMS notification. Graphic display form: It can monitor the continuous change of temperature on site and display it as a graph   2) Realize the storage and management of temperature data. Can realize the historical data inquiry: According to the user set time period, the controller address, the sensor number carries on the historical data the inquiry. Print the report according to the query result and style (the report can be customized)   3) When the temperature exceeds the specified value, an alarm message is issued, prompting the operator to check whether the substation has failed;   4) The temperature curve and temperature report of the system can be published through the network. The remote user can query the temperature history record through the browser.   5) The system application software uses plug-in or embedded (with interface) design, software installation is easy, simple operation, complete functions and easy maintenance. Under the conditions of data communication with the computer room, the administrator can remotely set the alarm value for each environmental sensor and define different levels of alarm modes. If there is any abnormality, the manager can be informed in a timely manner by voice or other means. The alarm item in the software is displayed in red during the alarm. 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Wireless passive temperature collector system structure