The circular network cabinet is equipped with three out -of -three outlets equipped with a standardized equipment, that is, the cabinet structure of the four units forms the ring network structure. The current planned monitoring equipment monitoring temperature is 13, and the 12 -way monitoring of each phase of the bus is connected to each phase bus connection. The temperature rise at the point, the practical temperature in the body in the body of the 1st monitoring cabinet. According to the equipment of the ring network cabinet, the number of road measurement can be added. Satisfy the needs of different users.
Temperature measurement machine transmits the data to the receiving side extension through infrared communication methods. The receiving end extension passes the RS485 communication and transmits the data to the main control computer. Control the computer to complete the temperature monitoring of the entire ring network cabinet system, timely find the case where the cabinet may occur, declare the alarm, predict the incident, and greatly improve the reliability of power supply.
The digital temperature sensor for temperature measurement selects DS18B20 digital temperature sensor. The temperature measurement plan is -55 ~+125 ° C. The power supply plan is 3.0 ~ 5.5V. You can complete the two -way communication between the microprocessor and the DS18B20, and do not need any peripheral equipment during use, low power consumption and strong anti -interference talent. Satisfaction requirement.
The digital temperature sensor of the sub -tone machine is selected by CNC imitation switch MUX, which can be very convenient to perform on -site equipment and confirmation of each channel. The temperature value is collected every 10s to obtain the temperature value of each channel, and then sent to the upper machine through infrared communication. In this way, the temperature value of any phase of the bus can be alarmed.
The temperature sensor is used for packaging and packaging. Epoxy resin is an excellent insulating material with high -agency function, arc resistance, and resistance to appearance leakage. It can withstand 20KV's strike voltage strength, and has an outstanding thermal conductivity. The sensor is very close to the position of the bus connection, which can quickly induce the temperature changes at the bus connection.
And selecting repeatedly collecting data, eliminating abnormal data, this can ensure the reliability of the data. Summarize the planning of the above -mentioned temperature testing machine modules, the equipment of the sensor, the infrared communication method, and the planning of the power supply, so that the temperature measurement system has a good anti -interference function, and the measurement data is stable and firm.
