Parking space detection reverse car search intelligent guidance system application case
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1. System significance
1) Help customers and vehicles find suitable parking lots and parking spaces in the shortest possible time, and avoid vehicles failing to find the parking lot. After entering the parking lot, they cannot find a parking space to help the owner return to the parking lot to pick up the car. The terrain is unfamiliar and the problem of not being able to find a car.
2) Help car owners quickly find the area where the car is parked, improve the satisfaction of car owners, speed up the turnover of the car in the parking lot, and increase the utilization rate and income.
3) Control the phenomenon that dedicated parking spaces are often occupied by foreign vehicles. Prevent unauthorized vehicles from entering the parking lot.
4) Plug the loopholes in charging, avoid the entry of favor cars, and better plug the loopholes in funds.
2. System architecture and program description
The intelligent parking lot management system consists of three parts (parking space detection, reverse car search, and intelligent guidance system).First, the core hardware of the intelligent parking lot management system (including: 2.4G+125k dual-frequency semi-active electronic tags, 125k low-frequency activator, omnidirectionalReader); Second, the intelligent parking lot management system platform (including the entrance and exit non-stop automatic identification entry and exit system, parking space detection system, intelligent parking space guidance and reverse car search system); third, hardware middleware (including PLC, LED dynamic display Boot screens, query machines, industrial switches, cabinets, PCs, servers, uninterruptible power supplies, etc.);
2.1 System architecture
System network architecture
2.2 Program description
Installation location
The intelligent parking lot management system consists of automatic entry and exit recognition of vehicles at entrances and exits, parking space detection and positioning, intelligent guidance and reverse car-finding subsystems. When vehicles enter and exit the parking lot, the low-frequency coils buried in the entrance and exit activate the Dual-frequency electronic tags, the tags actively send the tag ID and coil address code, which are read by a remote 2.4G card reader, connected to the controller, and control the opening and closing of the gate to achieve non-stop access management.
The intelligent vehicle guidance system provides data for parking space guidance according to the real-time status of parking spaces provided by the parking space detection system, and sends the data to the main controller and management computer in real time through the data collector and node controller, and the main controller updates each intersection in time The number of empty cars on the guide screen guides customers to park. At the same time, the parking indicator is controlled to display different colors according to the usage of the parking space. Red is occupied and green is vacant. Customers can see it from 50 meters away. According to the color of the parking indicator, customers can quickly find a parking space.
The reverse car search system detects and locates the parking space based on the dual-frequency electronic tags on the vehicle. Under the premise of vehicle positioning, the system records the location information of the vehicle. When returning to the parking lot to search for the car, the guest queries the vehicle. The location operation is simpler. Just find a query terminal nearby and directly read the ID representing the identity of the vehicle for query. The parking space information corresponding to the voucher will be displayed on the display screen, such as “B1 floor, A08 zone”. You can quickly guide the guests from a huge blank space to a relatively small area. In this small area, for most guests, finding their own car is no longer a problem. This is achieved The intelligent process to help guests find a car. It can also be combined with the built-in electronic map in the query terminal to automatically generate a road map in real time to help customers find their vehicles easily and quickly.
Three, typical cases
Great Wall Group
Shanghai Bell
Shanghai Maritime University
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