Online temperature monitoring system for closed cable equipment on basis of wireless radiofrequency technology

Abstract

The invention relates to an online temperature monitoring system for closed cable equipment on the basis of a wireless radiofrequency technology. The online temperature monitoring system comprises a temperature data acquisition terminal, a wireless radiofrequency network, a data transmission concentrator, a mobile communication network and a back-stage management server which are sequentially connected with one another. After acquiring temperature data, the temperature data acquisition terminal stores the temperature data locally and judges whether the temperature data exceed a set threshold value or not; if the temperature data exceed the set threshold value, the temperature data acquisition terminal gives an alarm locally and transmits the temperature data and alarm information to the back-stage management server via the data transmission concentrator in real time, and the back-stage management server stores the received temperature data and the received alarm information and transmits the alarm information to a client; and if the temperature data do not exceed the set threshold value, the temperature data acquisition terminal transmits the temperature data to the back-stage management server via the data transmission concentrator in real time, and the back-stage management server stores the received temperature data. Compared with the prior art, the online temperature monitoring system has the advantages that damage to the equipment and power failure accidents are effectively prevented, and the like.

Description

technical field [0001] The invention relates to an on-line temperature monitoring system, in particular to an on-line temperature monitoring system for closed cable equipment based on radio frequency technology. Background technique [0002] Online temperature monitoring has been widely used in various fields. For the power industry, real-time online monitoring of the temperature of cables and related equipment is an important measure to ensure the safe and stable operation of the power grid. But so far there is very little work done in this area. [0003] Cable lines are now gradually replacing overhead lines and becoming the main body of urban power grids. Therefore, the network structure is becoming more and more complex, with many joints and branches. These cables are easy to form hot spots one by one at the places where they are connected and tapped. When it is larger, it is easy to overheat and cause damage to the equipment, or even a power failure. Therefore, for th...

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Problems solved by technology

[0005] 1. Infrared thermal imaging cameras are expensive, inconvenient to carry, and consume a lot of manpower and material resources;

[0006] 2. It is greatly affected by climate and time, and due to the limited number of equipment, the census cannot be realized;

[0007] 3. Only the information at the time of the inspection can be obtained, but the historical temperature information cannot be obtained;

[0008] 4. For the indoor terminal of the cable in the closed position, the temperature information cannot be obtained;

[0009] 5. Real-time temperature monitoring cannot be carried out, and remote information acquisition and timely temperature alarm cannot be realized

Point-type temperature measurement is still at the stage of manual inspection. For temperature measurement with real-time, online and wireless transmission characteristics, there is still a lack of mature and wide-ranging applications.

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