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Rapid data processing method and device applied to playback system

A data processing device and a technology for replaying data, which are applied in the fields of electrical digital data processing, special data processing applications, and operation center control systems, etc., can solve problems such as slow positioning of replay data, small replay time range, and large system resources. Achieve the effect of small memory, large time range, and no sense of lag

Active Publication Date: 2013-01-30
CHINA ACADEMY OF RAILWAY SCI CORP LTD +3
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Problems solved by technology

[0006] The present invention solves the problem that the playback technology in the existing ATS / CTC system is completely dependent on the pre-stored index file, and when the playback file is read into the memory at one time, it takes up a lot of system resources and the positioning of the playback data is slow and can The problem that the time range of playback is small, and then provides a fast data processing method and device applied to the playback system, the present invention provides the following technical solutions:

Method used

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  • Rapid data processing method and device applied to playback system
  • Rapid data processing method and device applied to playback system

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] This specific embodiment provides a fast data processing method applied to a playback system, such as figure 1 shown, including:

[0024] Step 11, traversing the entire playback data file through memory mapping.

[0025] Specifically, the memory mapping involved in this step is a process of mapping a file to a block of memory. Win32 provides a function (CreateFileMapping) that allows an application to map a file to a process. Memory-mapped files can reser...

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Abstract

The invention provides a rapid data processing method and device applied to a playback system. The corresponding method comprises the steps that a playback data document is entirely traversed through an internal memory mapping mode; dynamic indexes of concrete positions for time and specific playback data are created; and the playback data are positioned and played back according to the received incoming time parameters and by combining the mapping relation. A user can rapidly position and play back the playback data of a specific time point through creating the mapping relation of the playback data document in the internal memory, a common home computer system can rapidly create dynamic indexes for a larger playback data document, the occupied internal memory is smaller during playback, the playback time range is larger, the reposition response to the playback time point is fast, and the playback process has no retardation.

Description

technical field [0001] The invention relates to a fast data processing method and device applied to a playback system, and belongs to the technical field of urban rail transit monitoring. Background technique [0002] ATS (Automatic Train Supervision, automatic train monitoring system) and CTC (Centralized Traffic Control System, dispatching centralized control system) are widely used in the field of rail transit, mainly to realize the supervision and control of train operation, and to assist traffic dispatchers to monitor and control the entire line of trains. It plays an extremely important role in improving the efficiency of rail transportation and ensuring the safety of operation. [0003] While the ATS / CTC system realizes the supervision and control function of the train operation, it also needs to store the real-time status of the line and various logs in the system, so that various management personnel can check the line status of the rail transit at each time period ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30B61L27/00
Inventor 袁志明许伟应志鹏宋鹏飞魏博杨洪权张涛秦宁方力一
Owner CHINA ACADEMY OF RAILWAY SCI CORP LTD
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