System and method for synchronous acquisition of detection data for measurement of orbital geometric parameters
A technology for detecting data and geometric parameters, which is applied to railway vehicle shape measuring devices, transportation and packaging, railway car body parts, etc., can solve the problems of poor synchronization performance of sensor data and no local storage, etc., to reduce the difficulty of data integration and Hardware failure rate, low development difficulty, and guaranteed non-interference effects
Active Publication Date: 2021-03-12
广州大铁锐威科技有限公司
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Problems solved by technology
[0006] 3. There is no local storage, and the storage depends on the computer;
[0007] 4. The data synchronization performance of each sensor is poor;
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[0035] The present invention will be further described below in conjunction with drawings and embodiments.
[0036] see Figure 1-4, a detection data synchronous acquisition system for the measurement of track geometric parameters, including: a central computing and processing unit, a clock synchronization unit, N serial communication interface units, a pulse capture unit, a communication interface unit and an analog acquisition unit; N≥1; The central operation and processing unit includes: a first processor, a second processor and a FIFO memory; the analog acquisition unit, the serial communication interface unit, and the pulse capture unit are all connected to the input of the first processor, and the The output end of the first processor is connected to the input end of the FIFO memory, the output end of the FIFO memory is connected to the input end of the second processor, and the output end of the second processor is connected to the communication interface unit; The clo...
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The invention discloses a detection data synchronous acquisition system for measuring track geometric parameters, which includes a first processor, a second processor and a FIFO memory; an analog acquisition unit, a serial communication interface unit, a pulse capture unit and the first processor The input end of the first processor is connected to the input end of the FIFO memory, the output end of the FIFO memory is connected to the input end of the second processor, and the output end of the second processor is connected to the storage unit and the communication interface unit. Connection: the clock synchronization unit is connected with the first processor, the second processor, the analog acquisition unit, the serial communication interface unit and the pulse capture unit. The present invention includes N serial communication interface units with high integration and can synchronously collect the detection data of various high data output rate sensing devices, so that only one system is needed for the measurement of track geometric parameters with different configurations; The difficulty of data integration and the hardware failure rate brought about by the stacking of multiple subsystems.
Description
technical field [0001] The invention relates to the technical field of track detection, in particular to a detection data synchronous acquisition system and method for measuring track geometric parameters. Background technique [0002] The safety and stability of train operation largely depend on the smoothness of the track. During the track construction period and operation and maintenance period, it is necessary to accurately measure the geometric state of the track to facilitate the evaluation of its smoothness. The measurement of orbital geometric state has become a basic task of orbital construction and orbital maintenance. Various orbital geometrical state measuring instruments have emerged as the times require. They use different technical means such as optics, satellite navigation, and inertial navigation. Sensors, inclination sensors, odometers and other sensors can accurately measure various geometric parameters such as track direction, gauge, superelevation and mi...
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IPC IPC(8): B61K9/08
CPCB61K9/08
Inventor 王义邓勇杰杨富炜伍艳良
Owner 广州大铁锐威科技有限公司