Unattended transforming plant single operation safety monitoring system

Abstract

The invention discloses a safe monitoring system without duty and with one person for operation, belonging to the technical field of audio / image signal transmission, which is characterized in that: two wired local area networks are respectively arranged at a central control room and at the front-end transformer station; a video receiving device and audio receiving / sending device connected with the wired local area networks is arranged at the central control room; a wired Ethernet is arranged between the central control room and the front-end transformer station; a portable video / audio sendingdevice is arranged at the front-end transformer station and is connected with the wired local area network of the front-end transformer station through a wireless local area network. The invention has the advantages of meeting the purpose of realizing safe operation for equipments at the front-end transformer station under the precondition of low cost due to adopting wireless local area network for transmitting sound image signal, not producing interruption for equipments of prior transformer station, realizing safe monitoring of single personnel operating process, being widely applied in areas such as operation, maintenance and safe production of transformation and distribution systems.

Description

technical field [0001] The invention belongs to the field of audio / image signal transmission, and in particular relates to an audio-image monitoring system which can be used to monitor the operation or safety of power transformation and distribution operators. Background technique [0002] For the sake of safety and prevention of misoperation, the operation of all primary equipment in the power transformation and distribution system must be "two-person" operation, one of whom is responsible for the specific operation on site (commonly known as the operator), and the other is responsible for monitoring it and The review work of its operating steps (commonly known as the guardian), which is clearly stipulated in the safety operating procedures of the power operation system. [0003] With the continuous development and improvement of the construction and transformation of power automation systems, unattended substations are being used more and more. [0004] For unattended sub...

AI Technical Summary

Problems solved by technology

[0008] Using CDMA or GPRS wireless network to build a wireless video transmission network, due to the need to lease the lines of telecom operators for a long time, its operating cost is relatively high; in addition, the transmission power of CDMA or GPRS wireless transmission module is large (generally above several hundred milliwatts), It is easy to interfere with the primary equipment and secondary control devices of the substation; in addition, if microwave technology is used to transmit wireless video signals, it is necessary to set up microwave transmitting and receiving equipment between the substation and the central control room, which requires high construction costs and comparative engineering facilities. difficulty

Images