1、 Introduction to personnel positioning systems for substations, nuclear power plants, and hydropower stations:
Ultra high voltage substations, nuclear power plants, and hydropower stations are the core components of the power grid system, and their safety production is related to the safety and efficiency of the entire power grid operation. Power stations and power plants are high-risk production areas, so daily operation and maintenance inspections of power stations and power plants require real-time positioning, video surveillance linkage, abnormal event alarm, personnel danger seeking, historical data query, operation and maintenance work assessment and other functions to ensure the safety of maintenance work and the efficiency of operation and maintenance work. After years of application research and technological accumulation, we have launched a power personnel positioning system based on UWB high-precision real-time 3D positioning, which helps power stations and power plants achieve automation and information management of operation and maintenance work.

2、 Solution for personnel positioning system in substations, nuclear power plants, and hydropower stations

This system consists of UWB high-precision real-time positioning subsystem, video monitoring subsystem, and monitoring center subsystem. The positioning subsystem adopts UWB technology. Due to the strict height and material requirements of the equipment in the ultra-high voltage working area, the positioning base station is installed at a height of 3 meters in the area near the wall, and the internal height is 2 meters. By deploying a small number of base station points, the entire field area can be covered;
Wear UWB tags on operation and maintenance personnel, vehicles, and related equipment to achieve high-precision positioning throughout the entire area. Linking location data with high-definition pan tilt video surveillance to achieve automatic video tracking, and combining with GIS to achieve virtual reality monitoring;
The operation and maintenance security subsystem software provides rich functions such as abnormal alarm, big data analysis, and historical tracing. The monitoring center can monitor all areas of the entire factory.
The wired network subsystem adopts an open architecture based on TCP/IP and standard routing switching network technology to provide a data communication network between the positioning system and various positioning base stations. The main transmission of UWB system is completed through the wired network subsystem to ensure the accuracy of backbone transmission. The wireless network subsystem, as an extension of wired network information transmission, provides data feedback support for some coverage areas where wired networks cannot be deployed.
The wireless positioning system consists of subsystems such as positioning software system, positioning base station system, and network subsystem.
Composition of positioning engine system
The positioning subsystem mainly consists of a positioning solution server and a positioning solution engine
The positioning system mainly realizes the collection, analysis, and presentation of positioning information
Place the positioning server in the core computer room and deploy it on the shelf
Composition of positioning base station subsystem
The positioning base station subsystem mainly consists of positioning base stations and positioning tags
Using the position resolution algorithm of the positioning software subsystem to calculate the vector coordinates of the area where the label is located, and presenting them
Based on the actual environmental conditions, the positioning base station needs to provide indoor and outdoor types
Positioning tags need to be provided according to different wearing methods: asset tags, anti riot and anti demolition tags
3、 Personnel positioning system objects for substations, nuclear power plants, and hydropower stations
Substation staff, external personnel

4、 Main functions of personnel positioning systems in substations, nuclear power plants, and hydropower stations
1) Real time location display: The map server displays the actual location information of all employees and external personnel in real time.
2) Historical trajectory data playback: The location server stores historical location data and can retrieve and query the dynamic location of employees at key time nodes.
3) Security zone alarm: Electronic fences are set up for employee work areas, alarm areas, and restricted areas. Once entered, corresponding levels of alarms are triggered.
4) Important item supervision: 24-hour supervision of internal important materials; The use of ultra wideband positioning technology can achieve effective supervision and tracking of valuable items
5) Once an alarm occurs in video linkage and tracking, the central server will automatically perform video linkage and location tracking based on the positioning information.
6) Substation big data analysis: comprehensive analysis of employee distribution heatmap analysis, employee activity mileage statistics, etc.
7) Emergency personnel control: In the event of an emergency, the control center can provide real-time access to the location information of all personnel within the power station. The control center promptly conducts rapid dispatch and personnel control based on the location of the incident. Provide road guidance assistance to management personnel
8) The 3D display system can display
Virtual 3D map:
(1) Draw virtual 3D maps of various areas of the factory building.
(2) Adopting virtual 3D technology.
Virtual 3D map data calling interface: for display function module calling, to achieve the following functions
(1) Map roaming and positioning
(2) Map zoom
(3) Map translation
(4) Map Eagle Eye
(5) Map distance measurement
(6) Map tags
(7) Map markers
Real time display of various positioning information within the factory area
(1) Real time display of monitoring video information within the factory area
(2) Dynamic tracking of positioning information
Location information retrieval and search

The customers who use this solution include various types such as hydropower station positioning, thermal power station positioning, nuclear power station positioning, substation positioning, etcPersonnel positioning systemElectricity companies with demand.