A control signal output method and system
A technology of control signal and output method, applied in the direction of electrical program control, program control in sequence/logic controller, measuring distance, etc., can solve problems such as unfavorable control signal output of various electrical characteristics, and achieve detection and improvement The effect of accuracy
Active Publication Date: 2019-08-30
ROADMAINT CO LTD
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[0003] The embodiment of the present invention provides a control signal output method and system to solve the problem in the prior art that only one input signal can output a control signal with one electrical characteristic, which is not conducive to the output of control signals with multiple electrical characteristics
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[0018] 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 some of the embodiments of the present invention, but not all of them. 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.
[0019] The embodiment of the invention discloses a control signal output method. This method is applied to road inspection vehicles. By driving on the road to be tested, the highway inspection vehicle can perform inspections of different functions such as road surface damage detection, rut depth detection, flatness detection, and landscape image collection. For the functional detection requirements of different subsystems, it is possible to output cor...
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The embodiment of the invention discloses a method and a system for outputting a control signal. The method comprises the following steps: starting a road detection vehicle and receiving a detection signal input by a user; acquiring the corresponding relation between each control signal indicated by the detection signal and triggering distance, wherein the control signals have different electricalcharacteristics; acquiring the current triggering times of the control signals corresponding to the triggering distance, wherein the initial value of the current triggering times is 1; performing calculation to obtain the product of the triggering distance and the corresponding current triggering times; according to the acquired vehicle speed pulse signal of the road detection vehicle, acquiringthe current driving distance detected by the road detection vehicle at the time; and if the absolute value of the difference value of the current driving distance and any product is less than half ofthe distance corresponding to single vehicle speed pulse signal, outputting the control signal corresponding to the triggering distance for obtaining the product. According to the embodiment of the invention, the control signals with different electrical characteristics can be output by inputting the detection signal with one electric characteristic, and the accurate rate is high.
Description
technical field [0001] The invention relates to the technical field of signal output of road inspection vehicles, in particular to a control signal output method and system. Background technique [0002] During the road inspection process, the road inspection vehicle can output multiple control signals with the same electrical characteristics according to one input signal. Therefore, the output multi-channel control signals are basically consistent in terms of signal amplitude, frequency, duty cycle, rise time, fall time and other characteristics. Highway inspection vehicles can generally detect highway pavement damage detection, rut depth detection, flatness detection, landscape image acquisition and other indicators. The control signals required by the control system corresponding to these indicators are often control signals with different electrical characteristics. Since the prior art can only output a control signal with one electrical characteristic from one input si...
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IPC IPC(8): G05B19/04G01C22/00
Inventor 常成利武玉钊杨亚鹏
Owner ROADMAINT CO LTD