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A bridge inspection vehicle frequency conversion control system and its control method

A bridge inspection vehicle, frequency conversion control technology, applied in control systems, general control systems, control/regulation systems, etc., can solve the problem of high hardware requirements, and achieve the goal of improving accuracy, reducing real-time control calculations, and reducing processing calculations. Effect

Active Publication Date: 2021-07-09
SINO RUBBER TECH CO LTD
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Problems solved by technology

However, this control method relies on a large number of real-time calculations of the PID controller, which requires high hardware requirements.

Method used

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  • A bridge inspection vehicle frequency conversion control system and its control method

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specific Embodiment approach

[0034] refer to figure 1 , a specific embodiment of the present invention includes,

[0035] The frequency converter 1 is connected to the motor 2 through communication, and is used for frequency conversion control of the motor 2;

[0036] The PID controller 3 is respectively connected to the frequency converter 1 and the speed sensor 4 for closed-loop control of the output signal of the frequency converter 1 according to the detection signal of the speed sensor 4;

[0037] The image acquisition module 5 is used to collect the image information of the forward direction of the bridge inspection vehicle;

[0038] The speed prediction module 6 is respectively connected with the frequency converter 1, the PID controller 3 and the image acquisition module 5 in communication. On the one hand, it is used to predict the driving speed of the bridge inspection vehicle according to the image information collected by the image acquisition module. Correct the driving speed prediction pro...

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Abstract

The invention discloses a frequency conversion control system for a bridge inspection vehicle, which includes a frequency converter, which is connected to a motor for frequency conversion control; The detection signal performs closed-loop control on the output signal of the frequency converter; the image acquisition module is used to collect the image information of the forward direction of the bridge inspection vehicle; the speed prediction module is respectively connected to the frequency converter, the PID controller and the image acquisition module. It is used to predict the driving speed of the bridge inspection vehicle according to the image information collected by the image acquisition module. On the other hand, it corrects the driving speed prediction process according to the real-time control information sent by the PID controller. The invention can improve the deficiencies of the prior art, and reduces the real-time calculation amount of the PID controller by preset driving speed.

Description

technical field [0001] The invention relates to the technical field of motor control, in particular to a bridge inspection vehicle frequency conversion control system and a control method thereof. Background technique [0002] The bridge inspection vehicle is an engineering vehicle driven by a motor. The control of its driving state is realized through the frequency converter. Existing control methods are generally realized through PID controller and PID adjustment. However, this control method relies on a large number of real-time calculations of the PID controller, which requires high hardware. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a bridge inspection vehicle frequency conversion control system and its control method, which can solve the deficiencies of the prior art, and reduce the real-time calculation amount of the PID controller by presetting the driving speed. [0004] In order to solve the ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/00
CPCE01D19/106H02P27/04
Inventor 李立卿韩福辰刘新良冯杰戈荣康
Owner SINO RUBBER TECH CO LTD
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