Time service method of locomotive LKJ device

Abstract

The invention discloses a time service method of a locomotive LKJ device. The method comprises the following steps: (1) establishing a WIFI wireless local network in a locomotive checking reservoir area and setting Beidou / GPS standard clock acquiring nodes; (2) obtaining Beidou / GPS standard clock information in real time by the Beidou / GPS standard clock acquiring nodes, and then issuing the standard clock information in the WIFI local network in the reservoir area through format conversion; (3) operating handheld terminals working in the same network environment, obtaining standard time refreshed in real time, and keeping time of the handheld terminals to be synchronous with time of a Beidou or GPS satellite in the WIFI wireless local network by a worker who enters the checking reservoir area or stands on a locomotive; (4) using a communication cable to connect a data read-write port of the LKJ device to realize time service of the LKJ device, thus ensuring that an error between an LKJ system clock and the standard time is far smaller than a standard error range in the industry.

Description

technical field [0001] The invention relates to a timing method for a locomotive LKJ device. Background technique [0002] The train operation monitoring and recording device (LKJ for short) is a train speed control device whose main purpose is to ensure the safety of train operation. Every time a locomotive enters the warehouse for inspection, it is necessary to perform timing (to ensure event analysis benchmarks), data download, and data transfer to the LKJ device. analysis etc. At present, the on-board equipment workshops of various railway sections across the country provide time service to the LKJ device by using a special timer in the office to obtain the time of the GPS master clock. Device timing. [0003] Existing timing method must at first carry out master clock time service to the special-purpose timer before going out to work, and then just can go out and work. The timing method is complex, limited in use, time-consuming and laborious, and relatively large in...

AI Technical Summary

Problems solved by technology

This timing method is complex, limited in use, time-consuming and laborious, and relatively large in error. In particular, it is easy to rework due to omissions and increase labor intensity due to lack of master clock timing. If the sense of responsibility is not strong, it will affect the safety of locomotives.

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