Ultrasonic Parking Guidance Is a New Equipment of Parking Lot System - Tiger Wong Technology

Smart city is a new concept put forward by people at present, which is still at the critical point of introduction and growth. However, with the popularization of smart city, its development prospect is bright. As the saying goes, intelligent transportation is an important symbol to measure the development of a city, so the core of smart city construction is intelligent transportation. Intelligent transportation mainly includes people's parking problems and urban parking guidance problems. With the development of technology, intelligent parking lot system continues to innovate in function in order to meet people's parking needs, It brings great convenience to people's parking.

With the development of information technology, smart city construction came into being, mainly through the Internet of things infrastructure, cloud computing infrastructure and other new generation of information technology to fully realize interconnection, intelligent integration and continuous innovation. The ultrasonic guidance system is suitable for parking lots with large traffic flow and tight parking spaces. It can help car owners understand the free parking space information in real time and quickly, so as to park quickly and efficiently. The parking space guidance system of ultrasonic technology is suitable for occasions that are sensitive to cost and do not require high customer experience. The system generally realizes regional positioning by swiping the card.

During reverse search, it can only be accurate to a certain area rather than specific vehicles. The system mostly adopts a three-tier pyramid structure, with the server at the top and the vehicle detector (ultrasonic probe) at the bottom corresponding to each parking space. Ultrasonic technology is adopted for the detection of parking space, that is, the change of ultrasonic frequency after shielding is detected by vehicle detector to detect whether there is a vehicle on the parking space. The vehicle detector selects the received ultrasonic frequency, and the filter circuit filters and amplifies the waveform for the first time. At the same time, the ultrasonic vehicle detector will conduct self inspection and temperature compensation.

Then, the first processed signal is amplified, filtered and ad converted. The single chip microcomputer receives the processed signal, makes a judgment of whether there is a car or not, and then outputs the result to the upper level of the system. There will also be some misjudgments for the ultrasonic guidance system, because the output results of the vehicle detector will flow to the server after being processed by its upper level hardware, and release the remaining parking space information to the designated media to realize the vehicle guidance function. To realize the reverse search function, the locator bound to each parking lot area needs to obtain the vehicle information of a certain area for the first time, and generate the reverse search result when obtaining the vehicle information for the second time on the specified equipment, so as to realize the vehicle reverse search accurate to the area. Ultrasonic parking space guidance system is mature and stable, with low installation and commissioning requirements and low cost.

It is deeply loved by consumers and is widely used in general commercial complexes. Its disadvantage is that it is sensitive to interference and has misjudgment. At present, urban ultrasonic parking space guidance plays an important role in the construction of smart city. The change data of parking space is mainly processed by the wireless public communication network system and the parking guidance control system to generate the spare parking space data corresponding to each parking lot. People can change the parking space in the surrounding parking lot through the display screen information of the parking guidance system, So as to provide effective spare parking space information to car owners.