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For mobile robots with nonholonomic constrains, modeling and trajectory tracking are both nonlinear problems. The traditional tracking algorithm often uses too simplified restrictive conditions, which makes the accuracy of tracking control hard to achieve the desired precision. In this paper, fuzzy control solution is introduced to resolve the robustness of(More)
Abstract—The measurement principle and hardware structure of a new-style time-difference method ultrasonic flowmeter are presented. Software arithmetic based on FPGA high-speed data sampling technology is put forward. Sample speed is up to 80MHz and sample depth is 1K byte, it can fulfill the requirement of ultrasonic flowmeter software arithmetic(More)
The measurement principle and sensor structure of a new-style time-difference method ultrasonic flow meter are presented. Software waveform analyses arithmetic based on FPGA and a bran-new echo datum mark position criterion are put forward. Exact measurement time can be helpful for improving system precision. In the end, realization project is simply(More)
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