Catenary positioning method and system with multiple positioning methods
A positioning method and technology of positioning method, applied in the field of catenary, can solve the problems of inaccurate position data, lack of positioning information for managers, affecting the accuracy of abnormal point positions, etc., so as to achieve easy management and maintenance, and accurate defect alarm data. Effect
Active Publication Date: 2018-04-13
CHENGDU NAT RAILWAYS ELECTRICAL EQUIP
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Problems solved by technology
The positioning information obtained by the catenary detection system is an important indicator for the reporting of catenary abnormal data, and its working status directly affects the accuracy of the position of the abnormal point. If the position data of the rail transit vehicle is not accurate, the management personnel cannot obtain accurate positioning information. Will bring many problems in terms of maintenance and management
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[0029] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.
[0030] (1) Catenary positioning method with multiple positioning methods
[0031] The present invention proposes a catenary positioning method with multiple positioning modes, and the method includes the following steps.
[0032] S1, when the speed of the rail transit vehicle is zero and there is no satellite positioning data, such as when the rail transit vehicle departs from the starting station, and when the rail transit vehicle stops at the intermediate station, the positioning control unit sends an acquisition to the base station positioning unit The base station longitude and latitude command, the base station positioning unit inquires the nearest base station number according to the base station longitude and latitude command, and ob...
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The invention discloses a catenary positioning method of multiple positioning methods and a system. When collecting that the speed of a rail transit vehicle is zero and no satellite positioning data exist, a base station positioning unit inquires the nearest base station number according to base station longitude and latitude instructions, and acquires coordinate information of the base station through an LBS (Location Based Service) according to the base station number, a positioning control unit performs position initialization setting according the coordinate information, and controls an inertial navigation unit to perform inertial location; when a satellite positioning unit collects the satellite positioning data, the satellite positioning unit receives the satellite positioning data in real time, and the positioning control unit calibrates inertial positioning in real time according to the satellite positioning data, and calibrates clock information and velocity information of an inertial positioning unit; when the speed of the rail transit vehicle is not zero and the satellite positioning unit can not receive the satellite positioning data, the positioning control unit controls the inertial positioning unit to perform the inertial positioning; the positioning control unit outputs real-time location data information of the rail transit vehicle to a catenary detection system.
Description
technical field [0001] The invention relates to the field of catenary, in particular to a catenary positioning method and system with multiple positioning modes. Background technique [0002] The catenary is a high-voltage transmission line erected in a "zigzag" shape along the sky above the rails in the electrified railway for pantographs to take current. The catenary is the main frame of the railway electrification project, and it is a special form of transmission line erected along the railway line to supply power to the rail vehicles. [0003] During the operation of the rail transit train, the catenary detection system detects the working status of the catenary in real time. When the catenary is abnormal, the catenary detection system will combine the abnormal situation with the position data and time information of the rail transit vehicle to generate a defect. Alarm data, and sent to the catenary data center, so that managers can manage and maintain. The positioning...
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IPC IPC(8): G01R31/08G01S19/49
CPCG01R31/086G01S19/49
Inventor 范国海杜虎张芳王宏强
Owner CHENGDU NAT RAILWAYS ELECTRICAL EQUIP