Positioning terminal maintenance method

Abstract

The invention discloses a positioning terminal maintenance method which is applied to a multi-base-station positioning system comprising a plurality of positioning terminals and a plurality of base stations, all the base stations are used for maintaining the same cloud registry. The method comprises the following steps: the base stations report state change information of the positioning terminals to the cloud registry; the cloud registry sends scheduling information to each base station based on the received state change information; each base station calls the corresponding positioning terminal based on the received scheduling information; and the positioning terminal responds to the received base station calling information and determines whether the connection with the base station is successful based on the base station calling information received within the preset time, if the connection is successful, the online is completed, and otherwise, the offline is kept. According to the positioning terminal maintenance method provided by the invention, the unified registry is jointly maintained by adopting multiple base stations, the workload of maintaining the registry by each base station is reduced, the base station does not need to poll all terminals, the interference of online signals on information transmission is reduced, and the online efficiency and reliability of the positioning terminal are improved.

Description

technical field [0001] The invention relates to the technical field of positioning of an industrial control system, in particular to a method for maintaining a positioning terminal. Background technique [0002] In the process of industrial production, in order to ensure the safety of various workers in the factory, such as manufacturing, the existing factories use a large number of personnel positioning systems to obtain the location information of the personnel present in time to complete the monitoring positioning management. Among them, the personnel positioning system generally consists of four parts: auxiliary positioning beacons, positioning terminals, communication base stations, and upper computer map engines. The positioning terminal uses Bluetooth positioning to obtain location information, and then uploads the location information to the communication base station in the form of wireless communication, and the base station organizes the data according to a fixed ...

AI Technical Summary

Problems solved by technology

[0013] 1) There are many registry numbers in the server, occupying a large space

[0014] 2) The number of positioning terminals is large and the time is long for single-cycle calls

[0015] 3) The registration signal is always working, which may interfere with other normal communications, resulting in loss of positioning data

[0016] 4) If the terminal equipment has been registered and online at a certain base station, positioning data transmission starts, but due to information isolation between base stations, other base stations will still register and call this terminal equipment, resulting in waste of time and signal resources

[0017] 5) The terminal actively reports the problem of difficulty in establishing a connection when there are a large number of terminals on the line

[0018] 6) If packet loss occurs in the terminal passive polling method, a lot of state switching time will be wasted, resulting in slow online speed

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