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1. Overview of the parking lot system
Traditional parking lot management has various drawbacks such as high management cost, high labor intensity, low service efficiency, capital loss and serious vehicle theft. It cannot guarantee the income of investors and the safety of parked vehicles, which severely restricts the development of the parking industry. .
This image-type proximity card parking lot management system draws on the advanced management mode of the same industry in developed countries in the world, adopts the most advanced inductive EM card, single-chip and microcomputer technology in the world, and has developed a completely independent system based on the actual situation of the country The parking lot management system of intellectual property and core technology.
The system adopts non-contact operation and has many advantages, such as convenience and quickness, accurate charging, stable and reliable, suitable for national conditions, good safety, flexible form, and powerful functions.
Since the system was developed and used, thousands of sets have been installed and used in developed cities in mainland China, such as Shenzhen, Guangzhou, Shanghai, Beijing, and Nanjing. It has been proved by many users that this series of products can effectively solve the problems of manual management of parking lots, and is well received by both owners and car owners. Over the past few years, with the efforts of domestic counterparts, it has successfully replaced foreign paper tape bar code cards, magnetic cards, contact EM cards and other backward charging systems, and has become the mainstream of today’s parking lot equipment, contributing to the development of China’s parking industry. When it comes to a very important role, the induction card parking lot management system is adopted, and a set of entrance and exit management equipment is set at the entrance and exit of the parking lot, so that the parking lot forms a relatively closed place. Only the EM card needs to be shaken in front of the card reader box when entering and exiting the car. , The system can instantly complete inspection, recording, accounting, charging and other tasks, and the lane gates can automatically open and close, which makes the management of the parking lot convenient and quick.
The owner of the vehicle and the management personnel of the parking lot both hold a non-contact EM card with their own private password as a personal identification. Only the EM card approved by the system can be operated (management card) or in and out (parking card) ), which fully guarantees the safety and confidentiality of the system, effectively prevents the theft of vehicles, and eliminates the worries of car owners.
The management card is issued in grades and the authority is determined to prevent the management staff from cheating. Any holder of a management card must register with the card before getting on the machine. For the export duty officer, after the operation registration is completed, they can enter the charge management. During the period, all charges for the export will be automatically recorded under the duty officer’s name and stored in the computer database. Because the duty officer is restricted by the authority with the operation card and cannot enter the higher software menu items in the system, he cannot interfere with the data recorded by the computer; the superior manager can check, check or print a duty period or any period of time with the card at any time And even the work records of the entire parking lot. This fundamentally prevents the loss of parking fees and financial statistics errors, and at the same time the system runs automatically, eliminating the economic losses caused by the favored cars and the overlord cars.
Parking cards can be issued according to different needs. Four types of cards: monthly rental card (monthly pass card), stored-value card, special card (free card) and hourly card (temporary card) are issued: monthly rental card and special card are based on time. Limit: The balance of the stored-value card is the limit; the temporary card can be picked up on demand, which is simple and convenient; in addition, the monthly rental card and the stored-value card are prepaid, which makes the management of the parking lot simple and proactive.
The system supports different charging methods for three types of vehicles to meet the requirements of separate charging by vehicle type.
Computer automatic timing and billing, automatic identification of special cards and monthly cards, manual cash collection for temporary cards, fast and efficient services, computer display screens and toll POS screens simultaneously display parking time and chargeable fees, card balance or expiration date, and charge transparency The ticket box display screen also prompts and guides residents to use the parking lot, and greets them in civilized language, which makes residents feel comfortable, attracts more users, and improves use efficiency.
The electric lane gates that the system is equipped with have the functions of anti-lifting rod and anti-smashing; the detection device of the system adopts advanced digital-analog conversion technology, which has strong anti-interference ability, adapts to various harsh environments, and is unique in that both sensitivity and reliability are improved at the same time. The system can check the parking spaces at any time. When the parking lot is full, it will automatically light up the red light with the word “Full” and automatically stop the entry operation.
The system is also installed at the entrance of the parking lot with a high-resolution color fixed camera, fixed bracket, automatic iris manual focus lens, which can monitor vehicle entry and exit for 24 hours, and can see the license plate number. When a vehicle enters the parking lot, the camera transmits the signal to the parking lot management system through a video cable, and stores it in the database; when a vehicle leaves the parking lot, the vehicle should pay the necessary management fees, and all the vehicles leaving the car The data (license plate, model, color, etc.) must be the same as the data when entering the parking lot before the brake lever is raised to allow the vehicle to pass.
2. Project overview
“XX parking lot system” is an open large vehicle entry and exit management system for XX community. After multi-party research, combined with the successful experience of past community parking system construction, based on the design principles of practicability, advancement, openness, and economy, we This scheme is designed to realize the management of vehicles in and out of XX community. Analyze the actual situation on site and the engineering needs of the parking lot project. The system is designed for two-in and two-out charging parking. Among them, chargeable parking consists of two parts, one is one entry and one exit (point A), and the other part is one entry and one exit (point B). Point AB is connected by optical fiber to realize cross-type two-way charging, and it can also be made into an independent charging system. In the independent type, point A can only charge point A, and point B can only charge point B; both parts can be counted separately. fee. The two-in and two-out parking lot system adopts a non-contact EM card reading method, with automatic card output machine, LED display, voice prompts and image capture functions.
3. Design basis
The design standards and specifications involved in the system design mainly include:
“Intelligent Building Design Standard” (DBJ08-47-95)
“Code for Electrical Design of Civil Buildings” (JGJ/T16-92)
“Commercial Building Cable Standard” (EIA/TIA-569)
“Code for Design of Low-Voltage Power Distribution Equipment and Lines”[GBJ54-83]
“Industrial TV System Engineering Design Specification” (GBJ115-87)
“Code for Construction and Acceptance of Electrical Installation Engineering” (GBJ23-90, 92)
“Civil closed-circuit surveillance system engineering technical specifications” (GB50198-94)
“Industrial Enterprise Communication Design Specification” (GBJ42-81)
“Safety Protection Engineering Procedures and Requirements” (GA/T75-94)
“Code for Design of Integrated Wiring System Engineering for Buildings and Building Groups” GB30511-2000
“Computer Software Development Specification”[GB8566-88]
“IEEE802.3 10/100Basr-T Ethernet Specification”
4. Design of charging management system for short-distance parking lots
System design Each import and export is managed by a computer, and a computer is set up in the management office to authorize and manage the entry and exit. The data is stored in the management office computer. The management office can check the entry and exit and authorization status of vehicles and personnel at any time. Two computers It forms a local area network through TCP/IP; the equipment and the computer use industry standard RS232/RS422 for communication. The card used by foreign vehicles in the system design is a non-contact short-distance MF1 card with a reading distance of 5-10cm. It is suitable for the actual use requirements in this program, and the system structure is shown in Figure 1:
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The entrance and exit adopt the positioning method of placing equipment in the road, and the entrance and exit barriers and card reader boxes are placed on the safety island in the road. The distance between the card reader vehicle detector for vehicles entering and exiting the field and the vehicle detector under the barrier should be greater than 3 meters. See Figure 2:
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Vehicle access control:
A/Entrance part: The entrance part is mainly composed of the entrance card reader box, walkie-talkie, automatic card dispenser, short-range card reader, barriers, vehicle detection equipment, and color cameras.
The admission process is designed as follows: When a temporary car enters the parking lot, the vehicle detection coil located under the lane detects the arrival of the car, and the card issuer panel display at the entrance prompts the driver to press the key to take the card. When the driver presses the key, the card issuer in the card issuer will send an ID card, which will be sent to the card exit via the card transport mechanism, and the card reading process will be completed. At the same time, the entrance camera is activated to record an image of the vehicle, and according to the corresponding card number, it is stored in the computer image database of the exit toll office. After the driver picks up the card, the electric railing raises the barrier to let the vehicle pass, and the vehicle automatically lowers the railing after passing the vehicle detection coil.
When the monthly rental card vehicle enters the parking lot, when the vehicle detection coil located under the lane detects the vehicle, the user swipes the card on the entrance ticket box reader, and the system automatically judges its validity; if it is valid, the entrance camera is activated, and the camera is recorded. An image of the vehicle, and based on the corresponding card number, is stored in the computer database of the exit toll office. The electric railing lifts the fence to let the vehicle pass, and the vehicle automatically lowers the railing after passing the vehicle detection coil; if it is invalid, it will be voiced and not allowed to enter the venue.
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B/Export part: The export part is mainly composed of an export card reader box, a short-range card reader, a toll display screen, a barrier, vehicle detection equipment, and a color camera.
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