High-precision coming vehicle and running vehicle detection system

Abstract

The invention discloses a high-precision coming vehicle and running vehicle detection system. The system comprises two laser range finders, a data receiving module, a front-end processing module and astate conversion module which are arranged along the traveling direction of a train; the data receiving module is connected with the two laser range finders respectively, associates the received distance data with the IDs of the laser range finders and the real-time timestamps respectively, and stores qualified data as an original data packet through data verification; the front-end processing module performs data filtering on the received original data packet, and judges whether the corresponding laser range finder is shielded or not according to the distance data, and adds records to form adata packet I; and the state conversion module converts the current system state among idleness, pre-triggering, triggering and post-triggering according to the data in the data packet I in combination with the current system state. The high-precision coming vehicle and running vehicle detection system can effectively eliminate the situations of backing, parking and the like, accurately and efficiently complete the collection of coming vehicle and running vehicle signals, and can provide accurate coming vehicle and running vehicle signals for a test system.

Description

technical field [0001] The invention relates to the field of rail vehicle detection, in particular to a high-precision detection system for incoming and outgoing vehicles. Background technique [0002] Vehicle condition monitoring is an important part of the vehicle safety assurance system and the entire rail transit system. In modern vehicle detection systems, such as in the field of rail transit, pantographs will wear out during operation. Intelligent detection equipment, such as Visual detection is used to obtain real-time parameters of the pantograph to determine whether there is abnormal wear; currently, this type of detection module is in a standby state for a long time, causing a great waste of resources while waiting for the arrival of the vehicle. Therefore, it is necessary to trigger the vehicle in advance. The trigger signal of the detection module avoids the long-term meaningless standby of the pantograph module / vehicle detection module, improves the durability o...

AI Technical Summary

Problems solved by technology

[0002] Vehicle condition monitoring is an important part of the vehicle safety assurance system and the entire rail transit system. In modern vehicle detection systems, such as in the field of rail transit, pantographs will wear out during operation. Intelligent detection equipment, such as Visual detection is used to obtain real-time parameters of the pantograph to determine whether there is abnormal wear; currently, this type of detection module is in a standby state for a long time, causing a great waste of resources while waiting for the arrival of the vehicle. Therefore, it is necessary to trigger the vehicle in advance. The trigger signal of the detection module avoids the long-term meaningless standby of the pantograph module / vehicle detection module, improves the durability of the system, and reduces energy consumption. The existing trigger method: one is to use detectors, such as photoelectric detectors or For the laser range finder, the existing scheme uses a single detector to obtain the incoming vehicle signal and trigger it, but this method is susceptible to external interference. For example, when animals in the external environment pass by the detector, the detector will also generate electrical signals, which can be mistaken for The arrival of the vehicle causes false triggering; another solution for the detection of oncoming vehicles in rail transit is: using magnetic steel with a magnetic steel processing board to complete, this solution needs to be installed online, and the processing board is expensive. At the same time, considering the high-speed railway train The running speed is extremely fast, and the trigger device installed on the track has caused great safety hazards

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