Wireless dispatching method based on token control

Abstract

The invention relates to a wireless dispatching method based on token control, comprising the following steps: ground radio stations and vehicle wireless radio stations adopt a mode of different frequency half duplex to work; dispatching commands are sent out by the ground radio stations and are received by the vehicle wireless radio stations, the vehicle wireless radio stations return confirmation messages aiming to each dispatching command at the same time, and the ground radio stations receives the confirmation messages; the ground radio stations form a ring, and only one ground radio station can send information at the same time through the token control; when a vehicle number of a received dispatching command is consistent with an actual vehicle number, the vehicle wireless radio stations are used as independent nodes, a corresponding vehicle wireless radio station responses information of each ground radio station; and a dispatching server is set to store the dispatching commands, and sends the possible abnormal conditions of information exchange and treatment as a third party arbiter. Compared with the prior art, the invention has the advantages of simple implementation, lowcost and convenient expansion, and can be suitable for complex geographic environment at the same time.

Description

technical field [0001] The invention relates to the field of rail transit, in particular to a wireless scheduling method based on token control. Background technique [0002] At present, domestic research and development on locomotive radio stations and railway wireless train dispatching systems are at a mature stage, and the application of wireless train dispatching equipment on railway trunk lines has also been basically popularized. However, the construction, transportation and maintenance vehicles in local factories and mines are not equipped with corresponding wireless train dispatching systems. [0003] Local factories and mines generally adopt short-distance transportation mode, that is, the scope is not large, but there are generally many dispatching objects, and the traditional voice dispatching is not efficient. At the same time, there are generally various topography and landforms within the coverage area, such as plains, mountains, tunnels, caves, warehouses, et...

AI Technical Summary

Problems solved by technology

[0005] One is the high frequency used, so its diffraction ability is poor, especially in bad weather conditions;

[0006] Second, due to the short transmission distance of WiFi, in order to cover the entire factory area, it is necessary to deploy a large number of wireless AP points, and the cost is relatively high

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