研究目的
To design an intelligent parking system for indoor parking lots using LED visible light for detecting the occupancy of parking spaces and performing positioning and navigation services, solving the problem of difficulty in parking and retrieving cars.
研究成果
The designed intelligent parking system for indoor parking lots using LED visible light effectively detects parking space occupancy and provides positioning and navigation services, offering a solution to the challenges of parking and retrieving cars indoors.
研究不足
The system's communication distance is limited to 3m when using the maximum 4W LED luminaire, and the illumination intensity must be carefully managed to avoid discomfort to human eyes while meeting communication requirements.
1：Experimental Design and Method Selection:
The system uses LED light source for address coding to realize indoor positioning navigation, integrating sensor, Zigbee infrared communication for intelligent positioning navigation.
2：Sample Selection and Data Sources:
A parking lot test model is built to simulate the indoor parking environment.
3：List of Experimental Equipment and Materials:
Includes reflective infrared sensor, microprocessor STC15F2K60S, Zigbee CC2530 module, LED lamp with visible light communication function, PIN photodiode, IV amplifier circuit, LM393 comparison circuit, and HC-06 Bluetooth module.
4：Experimental Procedures and Operational Workflow:
The parking space detection management module sends occupancy status information to the LED light fixture through Zigbee; the LED lamp encodes and modulates the information into the LED light signal; the optical signal receiver module receives and processes the signal, sending location information to the client via Bluetooth.
5：Data Analysis Methods:
The system updates the vehicle's position and driving path based on the address coordinates on the map.
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