Positioning method of electrical equipment and inspection persons in transformer station based on CSS positioning
A technology of electric power equipment and positioning method, applied in the direction of location information-based services, positioning, electrical components, etc., can solve the problems of poor GPS reception, inability to guarantee positioning accuracy, strong electromagnetic interference in substations, etc., and achieve easy promotion and shorten Positioning time, effect of short positioning time
Inactive Publication Date: 2017-11-03
STATE GRID CORP OF CHINA +1
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Problems solved by technology
Due to the complex internal environment of the substation and many power facilities, the GPS reception effect will be poor and it is not suitable for use; secondly, there is strong electromagnetic interference inside the substation, which makes positioning methods based on signal strength, such as Wifi and RFID, unable to guarantee Its positioning accuracy; although the UWB positioning method has high precision, but the range is small and the cost is high
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[0022] The present invention will be further explained below in conjunction with specific embodiments and the drawings in the specification.
[0023] The present invention specifically includes the following steps:
[0024] Step 1: Deploy reference nodes in the substation: A node to be tested needs to be distanced with at least three reference nodes to be positioned. The arrangement of reference nodes is to ensure that the node to be tested can communicate with at least three reference nodes;
[0025] Step 2: Scan and select the reference node needed in the positioning stage: When the node to be tested enters the research area, it will periodically broadcast a scan data packet SCAN, and the reference node will send a response data after receiving the scan data packet SCAN Packet ACK, the response data packet includes the node information of the reference node. When the node under test receives the response data packet, it stops broadcasting, and selects the reference node correspondi...
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The invention discloses a positioning method of electrical equipment and inspection persons in transformer station based on CSS positioning. By use of the improved CSS positioning technology, signal roundtripping propagation time is measured, and after the measured time data into distance data, a trilateral orientation algorithm is used for carrying out precise positioning, so a positioning precision problem easily caused by strong electromagnetic radiation interference in the transformer station and problems of high cost, high complexity degree and poor adaptability caused by clock synchronization in the time-based positioning solution are solved. Compared with the original CSS positioning technology, positioning time is reduced, the whole performance of the positioning system is improved, positioning of persons and articles in the transformer station is achieved, safe management and protection of operators on duty and onsite workers of the transformer station are enhanced, injury accidents of persons are avoided, safe operation of electrical equipment is ensured and powerful technical support is provided for safety of the transformer station.
Description
Technical field [0001] The present invention relates to a positioning method in a substation scene, in particular to a positioning method of power equipment and inspectors in a substation based on CSS positioning. Background technique [0002] my country has invested a lot of manpower and material resources in the construction of smart grids and has made remarkable achievements. As the foundation of the power grid, the substation is also a high-risk work area for the production and operation of the power grid, and its operation safety management is particularly important. However, the current substation automation technology support mainly judges the state of the power grid based on the changes and abnormalities of the electrical characteristics of the power equipment. It can neither achieve full coverage of the substation nor real-time positioning and timely warning and alarm. It often only occurs when an accident is in progress or occurs. Later, provide data record analysis fo...
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Login to View More IPC IPC(8): G01S5/06H04L1/16H04W4/02H04W64/00
CPCG01S5/06H04L1/1607H04W4/023H04W64/00
Inventor 杨磊张剑魏成保王晓东杨瑾
Owner STATE GRID CORP OF CHINA