Safety construction of ultra-wideband UWB modular chemical positioning system

      2022-05-12 732

      The ultra-broadband UWB modular chemical positioning system promotes the safety construction of chemical enterprises. Since last year, cities have been emphasizing the safety production supervision of chemical enterprises, strengthening the control of production personnel of chemical (hazardous chemical) enterprises in the park, and comprehensively improving the risk control capability and refinement of enterprises.

      Safety construction of ultra-wideband UWB modular chemical positioning system

      The Emergency Management Bureau of the Urban Economic and Technological Development Zone clarified the goals and functional requirements for the construction of chemical (hazardous chemical) enterprise personnel positioning system, and further promoted the installation and use of the ultra-wideband UWB module personnel positioning system.


      What are the requirements for the construction of chemical personnel positioning system?


      1. Basic functions

      The ultra-wideband UWB module personnel positioning monitoring system can accurately display the dynamic information of employees in the production area. Activity trajectory, the accuracy should be 0-5 meters, in order to realize the positioning of regional operators, trajectory analysis, number statistical roll call, intelligent inspection and control, video linkage, overcrowding/lack of intelligent warning, electronic fence warning, one-key emergency help, etc. Features. In the event of an accident, the UWB UWB module system can grasp the distribution location of employees in a timely manner, check the accident scene via video, and provide technical support for formulating the most reasonable rescue measures, effectively reducing casualties and corporate losses.


      2. Hardware requirements

      Each enterprise should reasonably arrange multi-faceted LCD screens according to the size of the central control, and the two-door display screen should display the personnel information and the announcement information promised by the main responsible person in real time; and set up sound and light alarm devices.


      3. System requirements

      Enterprises should establish and improve the intelligent two-door management system according to their actual conditions to ensure the normal operation of the personnel positioning system.


      The technologies used by chemical plant personnel positioning management systems for personnel positioning have their own advantages and disadvantages. However, only the ultra-wideband UWB module positioning technology can meet the requirements of the emergency management department for the positioning accuracy (0-5m) of chemical workers.


      The traditional positioning technology is to judge the position of the object according to the signal strength. The signal strength is greatly affected by the outside world, so the error between the object position and the actual position is large, and the positioning accuracy is not high. UWB positioning adopts broadband pulse communication technology, which has strong anti-interference ability. The positioning error is reduced, and centimeter high-precision positioning can be achieved.


      1. Data acquisition layer, including positioning base station and positioning label.

      2. The data transmission layer is mainly composed of POE switches and network cables.

      3. The data processing layer is mainly composed of server and positioning system software.


      work process:


      By installing a certain number of positioning base stations in the chemical plant area, personnel carry positioning tags, transmit real-time position pulses, collect UWB data and forward it to a computing server for data calculation.


      Ultra-wideband UWB module positioning mode selection:


      In the project, we can use three positioning modes to achieve the positioning effect, and at the same time reduce the cost by reducing the usage of positioning base stations.


      Zero-dimensional positioning: for presence detection, install a base station in a small area to detect that personnel are not in the area;

      One-dimensional positioning: used in corridors and long passage environments, by installing two base stations, the distance value of personnel in the passage can be realized;

      Two-dimensional positioning: It is used for accurate positioning of personnel in a large area. By installing more than 3 base stations, the accurate x and y coordinates of personnel on the plane map can be calculated.


      Ultra-wideband UWB modular chemical personnel positioning function:


      1. Real-time location

      The system can display a map overview (3D display, layered display, quick number of people, rapid evacuation of electronic fences, alarm information, classified display of personnel (factory employees, foreign personnel)/material information. Monitoring view (select the camera to view on the map, can be linked to video surveillance).

      2. Electronic fence alarm

      Customize the fence area, you can determine whether the operator has violations such as crossing, overtime, etc., and realize two-way alarm.

      3. Inspection track

      The ultra-wideband UWB module system can customize inspection routes, inspectors and cycles to fully meet the needs of chemical plant safety inspections. The replay of the inspection route provides a decision basis for event processing.

      4. People Statistics

      It can be combined with the two-door system, and can also count the working hours and daily working hours of factory personnel in real time through the positioning system. Personal or monthly attendance information will automatically generate an attendance report.

      5. Video linkage

      The ultra-wideband UWB module personnel positioning system is perfectly connected with the video monitoring system, and the system can immediately call up the monitoring screen to monitor the on-site operation status in real time.


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