Summary of the invention
The purpose of the present invention is that provides a kind of orbit geometry parameter detection to synchronize and computational methods to solve the problems referred to above.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of orbit geometry parameter detection synchronizes and computational methods, comprises the following steps:
A1: start temporally high frequency and gather analog sensor signal, obtain a series of digital signal；
A2: filter out required signal by digital filter, and the signal filtered out is integrated；
A3: signal Integral Processing crossed is by the square-wave signal collected, and edge fit, along carrying out Spatial sampling, obtains a series of spatial sampling signal, then jumps to step A5；
A4: rate signal and rail profile signal are spatially sampled in computer, gathers framing signal simultaneously；
A5: the above signal obtained carries out synchronizing alignment, interpolation or sampling alignment spacing wave, carries out data fusion synchronization；
A6: the signal obtained is carried out rail inspection parameter and calculates, obtain the height of rail inspection, level, rail to parameters such as, gauge and curvature, and export and process to the poster processing soft, generation form and curve.
Preferably, described analog sensor signal is obtained to/height acceleration transducer and transverse direction/servo longitudinal obliquity sensor by optical encoder sensor, gyrosensor of shaking the head/sidewinder, rail, and is passed through to be transferred to data fusion and processing unit after collection of simulant signal module collection；Described rate signal is obtained by photoelectric encoder, and is transferred to data fusion and processing unit after the process of Negotiation speed processing module；Described rail profile signal is obtained by two-dimensional laser sensor, and by being transferred to data fusion and processing unit after the process of rail profile processing module；Described framing signal is obtained by GPS/RFID/GYK, and is transferred to data fusion and processing unit after being processed by locating module；Realize network output by described data fusion and processing unit, data store, data show and data diagnosis.
The beneficial effects of the present invention is:
The present invention has significantly high stability and execution efficiency, it is possible to the restriction of second cosmic velocity, has stable throughput, and the accurately detection examining parameter for rail provides guarantee.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
As it is shown in figure 1, the present invention comprises the following steps:
A1: start temporally high frequency and gather analog sensor signal, obtain a series of digital signal；
A2: filter out required signal by digital filter, and the signal filtered out is integrated；
A3: signal Integral Processing crossed is by the square-wave signal collected, and edge fit, along carrying out Spatial sampling, obtains a series of spatial sampling signal, then jumps to step A5；
A4: rate signal and rail profile signal are spatially sampled in computer, gathers framing signal simultaneously；
A5: the above signal obtained carries out synchronizing alignment, interpolation or sampling alignment spacing wave, carries out data fusion synchronization；
A6: the signal obtained is carried out rail inspection parameter and calculates, obtain the height of rail inspection, level, rail to parameters such as, gauge and curvature, and export and process to the poster processing soft, generation form and curve.
When performing above step, it is necessary to first receive on the A/D capture card of computer by acceleration signal, gyro signal, photoelectric encoder signal, the signal of encoder receives the triggering end of digital signal simultaneously.
Step A1-A6 uninterruptedly performs when system is run, until detection terminates.
As shown in Figure 2, in foregoing, analog sensor signal is obtained to/height acceleration transducer and transverse direction/servo longitudinal obliquity sensor by optical encoder sensor, gyrosensor of shaking the head/sidewinder, rail, and is passed through to be transferred to data fusion and processing unit after collection of simulant signal module collection；Rate signal is obtained by photoelectric encoder, and is transferred to data fusion and processing unit after the process of Negotiation speed processing module；Rail profile signal is obtained by two-dimensional laser sensor, and by being transferred to data fusion and processing unit after the process of rail profile processing module；Framing signal is obtained by GPS/RFID/GYK, and is transferred to data fusion and processing unit after being processed by locating module；Realize network output by data fusion and processing unit, data store, data show and data diagnosis.
Orbit geometry parameter of the present invention detection synchronizes and computational methods, each sensor analog signals high frequency analog digital conversion temporally collects in computer, signal is processed by digital filter and integrator in computer respectively accordingly, result presses photoelectric encoder signal, spatial sampling is carried out according to porch, the spacing wave collected is processed accordingly by digital filter, obtains corresponding wavelength, and then obtains the signal that rail inspection parameter needs.The digital devices such as velocity process module, locating module and rail profile processing module access computer by digital interface, realize spatial synchronization according to photoelectric encoder pulse-triggered, collect computer.Above two blocks of data realize data fusion, and carry out calculating and the output of rail inspection parameter.
Temporally gather and ensure the basicly stable of data throughput, spatial encoder pulse signal is temporally collected in computer, the conversion on room and time can be carried out flexibly, it is possible to be accurately filtered and Integral Processing.
These are only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included in protection scope of the present invention.