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one.System Overview
The parking guidance system is mainly suitable for large and medium-sized underground parking lots, and is widely used in public parking lots such as government office buildings, railway stations and shopping centers. Its main working principle is to rely on vehicle detectors to detect the presence or absence of vehicles in each parking space, and then transmit the parking information of each parking space to the control computer through the network line. The computer uses software to process and guide the driver to quickly park the car into the empty space.
The main features of the parking guidance system: increase the utilization rate of the parking lot, and better manage the parking lot, reduce the operating cost of large and medium-sized parking lots, and can greatly improve social and economic benefits. Moreover, it is one of the necessary systems for high-end parking lots to eliminate parking troubles for customers, easily park, save time, and improve efficiency.
The parking guidance system includes four basic components: data acquisition system, data transmission system, information release system and central control system.
two.System structure diagram
The system consists of three layers: the first layer is the application layer, including software and computers, the second layer is the transmission layer, including data collectors and transmission cables, and the third layer is the physical layer, mainly vehicle detectors. The system is connected by RS485/RS232/CAN bus.
The working principle of parking guidance: Install a vehicle detector on the parking space and analyze it through a microprocessor to make a judgment about whether there is a car or not.
Parking guidance work process:
Approaching: When the car arrives at the entrance of the parking lot, you can see the information display screen installed at the entrance of the parking lot. The display shows the welcome message of the parking lot and the remaining parking spaces in the entire parking lot. The guidance system can be linked with the barriers. When the vehicles pass the barriers, the system will immediately refresh the parking spaces of the parking lot.
Guidance: The vehicle detector sends the detected information through the manager to the parking lot management workstation (ie, the central control computer), calculates and analyzes the occupancy of the existing parking spaces, and determines the next best parking space number among the remaining parking spaces, and displays it on the screen On, direct the driving route. Under the guidance of the driver, the car parked in the designated parking space. The driver can park freely without affecting the guidance of the next vehicle.
Parking: After the vehicle is parked, the vehicle detector detects the vehicle, and then sends the parking space occupied signal from the manager to the parking lot management workstation for processing. The system will refresh the information displayed on the information screen.
Departure: After the vehicle leaves the parking space, the vehicle detector detects that the parking space is free, and the manager sends the no-car signal to the parking lot management workstation for processing. The system will immediately refresh the number of parking lots and update the information on the information display screen.
three.System functions
This system mainly has the following functions:
1. The supporting software of this system has control management and statistics functions. Can run on WINDOWS98/2000/XP/NT operating platform.
2. Protection of fixed parking spaces: The reserved parking spaces are reserved for monthly leases, quarterly leases, and customers bought out by themselves.
3. Parking space reservation: Reservation and reservation can be set for parking spaces other than the fixed ones, and the reserved parking spaces will display the reservation status on the software.
4. Real-time display of parking space status: Implementation of dynamic display of parking space occupancy, so that the status of the entire parking lot is clear at a glance.
5. Statistics function: Powerful management software can automatically generate relevant reports to improve the management level of the parking lot. It can count the daily and monthly usage rate of the parking lot, the usage rate by time period, etc., guide the arrangement of parking lot management, and enhance the image of property management.
6. Parking time monitoring: After the car is parked in the parking space, it starts to count, and the parking time of each parking space can be known at any time in the control room.
7. System self-inspection: The guidance system can perform self-inspection regularly, and will alarm when a failure occurs, which is convenient for timely maintenance.
8. Accounting and fee management, entrance and exit control: The barriers are compatible with IC cards and ID cards, and there are multiple options for charging modes.
9. It can be combined with a large LED display to display the status of the parking lot in real time.
10. The remaining parking space counting system displays. It can display the remaining parking spaces of the entire parking lot and the remaining parking spaces of each area in the parking lot.
11. The vehicle detector is used to detect the vehicle, which is accurate and reliable.
12. The management is convenient and flexible, and can enrich the management methods, and the operation is simple and does not require personnel management.
13. It can use the parking space status simulation diagram to visually and intuitively monitor the usage status of each parking space in the parking lot in real time.
14. Can inquire and modify the usage status of a parking space at any time;
15. Able to have at least two levels of system operation authority to ensure the safety of the data collected by the system.
Four.Design scheme of parking guidance system
We can design different schemes according to the specific requirements of customers. The basic plan is as follows:
1. Install a vehicle detector under each parking space to detect the parking situation of each parking space;
2. Set up a vehicle detector and a manager at the entrance of the parking lot to quickly respond to the flow of vehicles and trigger guidance to reflect the remaining parking spaces in the parking lot in time;
3. The vehicle detector is uniformly managed by the manager;
4. Set up LED display screens at the corresponding road forks and parking lot entrances to display the parking spaces or remaining parking spaces on this floor;
Design principles and functions:
1. Design the parking space selection according to the driving route signs of the parking lot.
2. According to the occupancy of parking spaces, in order to avoid traffic jams, the software adopts the principle of moving from far to near without guiding two adjacent parking spaces at the same time.
3. Define the priority mode of each parking space, and give priority to the parking space selection.
Shanghai Zhenzhuo Electronic Technology Co., Ltd. is a high-tech enterprise specializing in the research and promotion of radio frequency identification technology (RFID). Service in one, can tailor perfect professional system solutions for users in different fields, meet the individual needs of users in different industries, and promote the improvement of social productivity and work efficiency with high-tech means.
Some R&D tasks undertaken by the company:
1. In July 2006, the company received scientific research funding from the “Mountaineering Action Plan” of the Shanghai Municipal Science and Technology Commission.
2. Undertake the special research and development of “Research on the People Flow Guidance and Service System of Expo Park Based on Radio Frequency Identification, Wireless Sensing and other technologies” in the subject of “Key Technology Research of Expo Park Operation Technology”.
3. The display of smart shelves in Shanghai RFID Industrial Park has passed the acceptance of relevant national departments.
4. In 2007, the company cooperated with the Bureau of Shanghai World Expo and applied for the research and development of the special project “Development and Engineering Application of Passenger Flow Guidance System in Expo Park Based on Radio Frequency Identification Technology” funded by the Ministry of Science and Technology.
The product series developed by the company are of international leading level and have independent intellectual property rights.
Some patents applied by the company:
1. Coordination method of multiple readers in radio frequency identification system Application number: 200510030351.8
2. Reusable automatic passive radio frequency identification tags Application number: 200520047985.x
3. Inductive IC card door lock backup unlocking power supply device Application number: 200620040025.5
4. An IC card door lock backup unlocking power supply device Application number: 200620040026.x
5. A multifunctional electronic tour guide system Application number: 200610116068.1
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