Taxi, online car-hailing and other vehicle services, as one of the ways for the public to travel, are convenient for travel but also bring safety hazards. In recent years, the rapid development of online car-hailing, but with the frequent occurrence of car safety incidents, with the improvement of user security awareness, the personal safety of …
There are about 27 million mu of tea gardens in China, which can produce more than 800,000 tons of tea seeds per year. The oil content of tea seeds is 30~35%, of which unsaturated fatty acids are as high as 75~85%, which is a good functional vegetable oil. In December 2009, the “Announcement No. 18, …
The work uses the characteristic that the propagation speed of ultrasonic waves in the medium changes with temperature, and designs a new type of precision ultrasonic thermometer that has both low cost and high precision. The special software subdivision algorithm is used to process the collected data, combined with the FPGA-based high-speed data acquisition control …
At present, household users generally use large-scale drum washing machines. Under the social reality of today’s society and the country’s energy conservation, emission reduction, and environmental protection initiatives, large drum washing machines not only occupy space and consume electricity but also have hygiene issues that cannot be ignored. problem. Now we have developed a portable …
The system consists of two parts: hardware and application software. The hardware part is composed of an ultrasonic ranging module and an interface module, and the software part is composed of a single-chip control program and a warning processing interface. The specific working process of the ultrasonic ranging module is as follows. After the single-chip …
Vision protection system based on ultrasonic distance measurement Read More »