Application of Intelligent Parking Lot Management System in Beijing Olympic Forest Park
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Project Background
The Olympic Park covers an area of about 1,215 hectares, including 760 hectares of forest green space, 50 hectares of Chinese National Museum and 405 hectares of exhibition halls, stadiums and Olympic Village. The Olympic Park is the heart of Beijing’s hosting of the 2008 Olympic Games. It accommodates 44% of the Olympic Games venues, a total of 14 venues can hold 15 events, 4 of which are located in the exhibition hall.
There are 8 public parking lots on the ground where parking management is required in the Olympic Park; they are respectively distributed along the outer entrance passage of the Olympic Park beside the main municipal roads such as Anli Road and the North Fifth Ring; in addition, the main entrances and exits of the parks should also be effective. According to the drawing statistics, there are a total of 26 entrances and exits to be carried out.
Parking management needs
Parking management demand 1: Vehicle parking fee management demand
The parking lot of the Olympic Park is a fee-paying parking lot; how to improve the work efficiency of toll collectors, save manpower and various social resources, prevent the loss of parking costs and increase management efficiency, and strive to obtain the largest return on investment is the first solution to the parking management of the Olympic Park. Two requirements.
Parking management requirements 2: Vehicle entry and exit and parking safety requirements
These access channels are independent of each other and connected with each other by lanes. The characteristic is that there are many lanes and many bends, and there are many hidden dangers of accidents during the driving of vehicles; coupled with the dense and mixed people of the Olympic Park, it has caused great safety risks to the parking safety of vehicles entering the Olympic Park.
How to solve the safety of vehicle parking management and meet the requirements of the Beijing Municipal Transportation Administration for the management of Olympic traffic. It is necessary to have effective records of vehicles entering the Olympic Park, so that there is a documented investigation in case of an accident. Prevent vehicles from hanging, stolen, man-made damage and personal safety issues when the vehicle owner is parking, and improve the timely handling and response control capabilities when these problems occur, and further ensure that the parking and parking safety issues of vehicles entering the Olympic Park are The Olympic Park addresses the second need of parking management.
Overall design principles
In accordance with the requirements of the bidding document for the design of the Beijing Olympic Park parking lot monitoring system, we take “reliable, advanced, economical and practical” as the guiding ideology of the system design.
Safety and reliability: All equipment selects well-known domestic and foreign brand products with excellent technical performance. The central equipment is mainly industrial control computer to ensure that the mean time between failures (MTBF) is not less than 10,000 hours under local atmospheric conditions. All equipment meets the IP65 level. Able to ensure 24*7 uninterrupted operation requirements.
Technical advancement: Use advanced digital technology to ensure the compatibility of information transmission and storage to meet the possible requirements of future technological development; use computer software technology to modularize the system to ensure high efficiency of data processing; use computer networks Technology to ensure the networking and standardization of parking information, and the entire parking management system can be expanded at any time to meet the expanded requirements of the Beijing Olympic Park. Through equipment upgrades, computer hardware upgrades and software upgrades, the system can be guaranteed not to lag behind for five to ten years.
Economic rationality: The design of the system fully reflects the rationality of the system in terms of performance and price ratio. While ensuring the advancement and meeting user needs, the engineering design is carried out with the goal of improving work efficiency, saving manpower and various resources, and fully considering the system Practicality, applicability and benefit, strive to obtain the greatest return on investment
Standardization: The design and implementation are carried out in accordance with relevant national and local standards. The selected system equipment, products, and software conform to industry standards or mainstream as much as possible, and at the same time open data interfaces, which can be interconnected with other systems to realize the integrated management of security and protection in the Olympic Park.
Structure and expandability: The overall structure of the system will be structured and modular, with good compatibility and expandability. It can not only integrate equipment products from different manufacturers in one system, but also enable the system to It can be easily expanded in the future.
Simple management: comprehensive optimization, optimization, emphasizing people-oriented, easy-to-learn and easy-to-use system, and modern management.
System settings
In this project, for medium and large parking lot systems with multiple entrances and exits, we adopt the Ethernet-based C/S (client/server) network structure to achieve distributed management and system management for the entire parking lot management system. The center is set in the central control room, and a data server is placed in the central control room to realize the centralized management and sharing of system data. At the same time, a backup server is set up to automatically switch when the network fails to ensure the stability of the system. The system management center also sets up an issuance management workstation to issue and manage cards, and configure corresponding charging management workstations at the entrances and exits of the park and the exits of each parking lot to complete the management of smart terminals and the collection of temporary parking fees.
The system uses optical fiber transmission media. The connection between the system server and the switch (or hub), each workstation and the switch (or hub), or the computer and the computer has a large amount of data transmission and a long distance, so optical fiber connection is recommended.
Each management workstation is connected with its lower-level intelligent terminal through a two-core shielded twisted pair to complete data transmission and sharing.
System composition
The parking lot charging management system is generally composed of management workstations, management software, smart terminals, temporary card meter, RS485 communication card, smart sensor card and barriers.
system structure
The Ethernet-based C/S (client/server) network structure realizes distributed management of the entire parking lot management system. Not only can a single system run independently offline, but the system can be managed uniformly after it is connected to the network.
Parking lot entrance workflow
The entrance and exit card reader subsystem is mainly composed of entrance card issuers, inductive card readers, automatic barriers, vehicle detectors, remaining parking space indicator screens, ground sensing coils and other equipment. The entrance is in an unattended working state. When the vehicle reaches the entrance The first set of induction coils (before the card issuer), the system activates the card output machine, the automatic induction card reader and the vehicle detector to enter the working state, and the Chinese voice prompts the user how to enter the parking lot entrance (such as: welcome, please read the card if you have a card) , If there is no card, please take the card). The user can also see the Chinese and English prompt information on the display on the front panel of the card issuer.
Admission process for temporary card users:
After the user presses the card removal button, the card dispenser quickly releases the card. After the user takes the card, the gate machine automatically raises the gate rod to release, and the vehicle enters the parking. The card issuing information will drive the camera to collect vehicle image information and automatically save the data information and image information of this operation to the management database. After the vehicle passes the second set of induction coils (under the brake lever), the brake lever is automatically lowered, and the card dispenser and automatic inductive card reader reset and enter the standby state at the same time. If the card issued by the card issuer does not take out the card over time, the card will be invalidated and automatically recycled, and the timeout time parameter management server will be uniformly set. When the entrance control system has a card out and other malfunctions, it can give an alarm and be maintained by the staff on duty.
Admission process for staff fixed card users:
The user puts the proximity card within the effective card reading range of 10-15 cm. After the fixed card recognition is valid, the brake lever automatically raises the brake lever to release the vehicle into parking. Reading the valid card information will drive the camera to collect the image information of the vehicle. The data information and image information of the operation are automatically saved in the management database. After the vehicle passes the second set of induction coils (under the brake lever), the brake lever is automatically lowered, and the card dispenser and automatic inductive card reader reset and enter the standby state at the same time. When the entrance control system has card reading failure, it can alarm and be maintained by the staff on duty.
Entrance LED remaining parking space indicator subsystem process
A. When the driver drives to the entrance of the parking lot, he will see the remaining total parking spaces that are about to enter the parking lot on the remaining parking space display set on the road, and how many free parking spaces there are to decide whether to park in the parking lot; When the parking lot is full, the display screen displays “This parking lot is full, please park at **Parking Lot”, if the parking lot is not full, the display shows the actual remaining parking spaces in the parking lot.
When the car enters the parking lot, it senses that the car has entered through the induction coil at the entrance. The entrance digital vehicle detector will inform the area controller, and the area controller will make a judgment that the number of parking spaces is reduced by 1, and the new parking data of this parking lot will be displayed on the screen.
B. When the vehicle exits the area where the vehicle is parked, the exit ground induction coil informs the area controller of this information through the vehicle detector, and the area controller reduces the number of parked vehicles on the display screen at the respective entrance through data processing. Go to one and add one to the number of vacant parking spaces to ensure that the parking space information is displayed correctly.
Image comparison system process
Entrance: When the vehicle arrives at the entrance, the detection coil buried in the lane will signal through the vehicle detector to activate the camera system to enter the working state. The vehicle reads or fetches the card while the camera starts to work; the camera completes the image capture within 0.2 seconds, and the number of shots is 5-10 frames of images. Through the efficient video capture and comparison technology, the system automatically compares the captured images for analysis. From the group of image data, the clearest one is automatically selected and automatically uploaded to the image data server to complete the work. At this time, the car stopper is automatically opened and the vehicle is allowed to enter the field. After the vehicle passes the safety coil buried under the car stop, the car stop is automatically closed. At the same time, the floodlight and camera system return to the original static state, waiting for the next work.
Exit: When the vehicle arrives at the exit, the detection coil buried in the lane will signal through the vehicle detector to activate the camera system and enter the working state. The camera starts to work; the camera completes the image capture within 0.2 seconds, the camera completes the image capture within 0.2 seconds, the number of shots is 5-10 frames of images, through the efficient video capture and comparison technology, the system automatically compares the captured pictures After analysis, the clearest one from the group of image data is automatically selected and automatically uploaded to the image data server, and the image is displayed on the export comparison window at the same time. At the same time, the software image comparison window also retrieves from the image data server the image of the vehicle that was taken and saved when the vehicle entered the venue for the parking manager to compare. After the vehicle manager confirms, the control gear opens. Released. If the images of vehicles entering and exiting the venue are inconsistent, the vehicle administrator will intervene.
After the exiting vehicle passes the detection coil buried under the gear, the gear is automatically closed. At the same time, the floodlight and camera system return to the original static state, waiting for the next work.
The system has the function of preventing long-term vehicles from re-appearing. Strictly check the vehicles entering and exiting the venue through image recording and identification identification cards, ensuring the safety of vehicles in the parking lot and effectively preventing the theft of vehicles.
Parking lot exit workflow
When the vehicle arrives at the exit, the vehicle detector detects the presence of the vehicle and activates the exit device.
Fixed card working vehicle or stored-value card exit: fixed card working vehicle exits the field, the vehicle directly swipes the card within the effective range of 10-15 cm from the exit card reader, the system confirms the validity of the card, and the vehicle administrator performs image comparison, such as vehicle number and model , After the body color contrast is in line, carry out the release operation;
Temporary card owner’s vehicle exit: the temporary vehicle exits, the vehicle arrives at the exit, the card is handed over to the administrator, the toll administrator swipes the card on the toll reader to record the payment, and the vehicle administrator compares the images, such as vehicle number, model, and body After the color contrast meets, the release operation will be carried out;
Equipment layout and system wiring
The various equipment of the system must be reasonably arranged to ensure smooth vehicle entry and exit and convenient management. The equipment layout diagram is as follows:
Brief introduction of management software
For the management personnel (operators) on duty, the on-duty login is first required when on duty, and the shift operation is required when off duty.
The software interface of the parking lot system has a menu bar and a shortcut toolbar, as shown in Figure 9-1:
There are “system management”, “access management”, “online communication”, “query report”, “auxiliary management”, “window”, and “help” menus in the menu bar, and the shortcut toolbar has “work login” and “access Shortcut buttons for “Manage”, “Reader Settings”, “Read Records”, “Card Detection”, “System Settings”, “Help” and “Exit System”.
In the drop-down menu of the main menu of the system, the highlighted characters are the currently executable function commands, and the dimmed characters are the currently unexecuted function commands.
The F1 key is the help key. Press F1 at any time and a help window will appear on the screen.
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