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1. Market demand background
Modern commercial plazas usually consist of a variety of retail stores and service facilities concentrated in a building or area to provide consumers with comprehensive services, usually containing dozens or even hundreds of service places. As a result of the huge flow of people in the commercial plaza, it also inevitably brings together a large number of vehicles. The access management of these vehicles has become an indispensable part of the management of the commercial plaza.
2. Project Analysis of Parking Guidance System in Shanghai World Expo Park
The Expo Axis is the main entrance and main axis of the 2010 Shanghai World Expo Park. It is a semi-open building with two floors above and below the ground. It is one of the five permanent buildings of the Expo with one axis and four pavilions. It is 1045m long from north to south, 99.5m-110.5m wide from east to west, and 80m above ground. The base covers an area of 136,000 square meters, with a total construction area of 252,000 square meters. When the two phases are fully opened, it will be transformed into the largest ultra-wide area shopping center in Shanghai, “World Expo Source”. The “World Expo Source” commercial project integrates cultural expo creativity. , Headquarters business, high-end exhibition, tourism and leisure, and ecological human settlements, Shanghai 21st century iconic municipal public activity center. With the introduction of the cubic parking lot vehicle access and charging management system and parking guidance system, it will comprehensively improve the management’s service satisfaction, consumption experience, increase customer traffic, increase customer turnover, and even directly increase potential turnover. .
(1) Analysis of vehicle access and toll management system
The Expo Axis Vehicle Access Management System comprehensively analyzes the actual environment in the Expo Axis, and Lifang has designed 3 channel access control points. Through the entrance and exit management equipment, the entrance and exit passages are used by both internal long-term users and external temporary users. External temporary users adopt license plate charging management to enter and exit (vehicles with no license plate or stolen goods blocking the license plate enter and take paper tickets), and self-service payment methods are used before leaving the venue. Manual payment for entry and exit or exit; long-term internal users use license plate recognition to enter and exit without stopping. The system supports various charging methods such as on-site self-service payment and export staff payment; and has the function of shopping mall consumption reduction and exemption.
Function advantages of access and charge management system
Large-capacity bar code paper ticket, multiple charging management: with multiple charging standards such as schedule, timing, counting, on-time, by-time, time-of-day, time-sharing, one-time charging, etc., with on-site charging management functions. Large-capacity barcode paper tickets can use 2000 sheets at a time, which effectively solves the frequent filling situation caused by insufficient card capacity in traditional card parking lots, which reduces the workload of filling and reduces the maintenance cost of the card.
Video entry and exit, image comparison: When a vehicle swipes through the entrance and exit of the parking lot, the system will automatically capture the entry and exit images of the vehicle and store it in the database. When leaving the field, the system will also display the entry and exit pictures of the vehicle for manual comparison by the staff. Mid- and long-term vehicles enter through license plate recognition, which not only realizes fast traffic without stopping, but also avoids the instability of reading distance caused by traditional long-distance cards, card external, loss, maintenance and other problems, and also reduces the overall project cost.
Anti-following and anti-reversing: The system is equipped with anti-following and reversing functions. After a legal vehicle passes through the stopper, the stopper will immediately return to its position to prevent illegal vehicles from following and entering. When the two vehicles are too close and the anti-smashing sense is triggered and forced to enter, the system will automatically generate a follow-up alarm to remind the security guard to handle it manually. When the car owner enters abnormally after taking the card and reversing and leaving the entrance of the parking lot, the system will generate an anti-reversing alarm record.
Traffic management, online update: The system has a traffic counting function, and the stopper will ensure that all certified vehicles in the passageway will not fall until they exit/enter the venue, improving the efficiency of vehicle traffic. It also supports online firmware upgrade of the entrance and exit control machine through TCP/IP communication, and also supports online upgrade of system software.
Dynamic display, intercom function: specially designed ultra-high-brightness dual-line LED dot matrix screen, which can display 8 Chinese characters at the same time, the display content on the same screen is more abundant, and it supports multiple dynamic effects and supports custom text to meet individualization Demand. Each entrance and exit control machine has a built-in intercom extension. After the user configures the intercom host in the management center, the user can directly contact the management center through the entrance and exit control machine to quickly solve the problem.
Voice function, alarm reminder: The system uses powerful voice processing technology, decodes voice files through a high-performance processor, and can play clear reminders like the announcer version without a computer drive, which is convenient for operation. For all kinds of alarm events such as lack of card, no card, fire alarm, full position, etc., real-time all-round alarm or prompt output such as sound effects, text, LED, and software prompts are provided.
System linkage to prevent repeated entry and exit: It has a wealth of predefined and custom interfaces to implement signal access and response to fire alarms and anti-theft alarms, and has open interfaces such as OPC to achieve IBMS integration and linkage. The same card does not allow repeated entry and exit, which can effectively prevent problems such as fee evasion.
Multiple controls and real-time monitoring: the channel vehicle identification instrument can be used to monitor the channel status in real time. The management software can monitor the parking lot space, equipment status, and various in and out card swiping events, system alarm events, channel alarm events, ground sensing events, and roads. Information such as gate events can be fully managed and controlled, and various events can be reflected in real time and intuitively through graphical electronic maps. The car stop can be controlled by a variety of methods such as hand control box, remote control, software, entrance and exit control machine, etc. In particular, when an unexpected power failure occurs, the system can manually open the stopper through the physical device inside the stopper.
(2) Analysis of parking guidance system
The intelligent parking guidance system is composed of three major components: the ultrasonic detector of the detection part, the parking light of the display part, the guidance screen and the management center of the management part. The system adopts the RS485+TCP/IP networking mode. RS485 bus is used for communication, and TCP/IP communication is used between the management center and each guide unit and the guide screen. This networking mode not only guarantees the overall high-speed transmission of system data, but also greatly increases the number of ultrasonic detectors that can be mounted on the system to meet the needs of parking garages of any size.Such as: the following parking space guide topology map
Functional advantages of parking guidance system:
Pure offline operation capability: The cubic parking space guidance system adopts a new system architecture. The guidance unit integrates data collection, information calculation, and remaining space display functions. It is highly intelligent. The information display does not go through the computer or other control units, which effectively avoids The problem of data loss caused by too many components makes the system network simpler and more stable. At the same time, this design idea makes the management center not participate in the realization of specific business, and the system can realize pure offline operation.
Fault alarm isolation mechanism: When any device in the system fails, it only affects itself and does not affect other devices. Other devices can operate normally. At the same time, the system management center will generate an alarm signal to facilitate rapid positioning and maintenance of the faulty device. Greatly enhance the reliability and stability of the entire system.
Ultra-thin high-brightness display: The display units such as the guide unit and the area guide screen specially select ultra-high-brightness SMD LED lights. The horizontal viewing angle of up to 160 degrees, the display is clear and bright, so that the owner can clearly identify it from a few tens of meters away. Specially selected one-piece aluminum shell, 6cm ultra-thin design, and surface anti-rust treatment, which can better resist the humid environment in the parking lot.
Transceiver integrated detector design: It is regarded as reducing the measurement error and interference caused by the deviation of the distance between the dual probes and the placement angle. In particular, the ultrasonic transceiver integrated design is used, which is more effective than the traditional transmitter and receiver separate detectors. Improve the anti-interference performance of the ultrasonic detector. At the same time, the integrated transceiver design makes the structure of the detector more compact, which greatly improves the stability and reliability of the product.
Fuzzy query function: After the user enters the license plate number, the system provides a special fuzzy query function, which will provide a vehicle image similar to the query license plate for the user to choose. Sorting in descending order of matching degree, with the most matching at the top, improving user query efficiency.
B/S architecture software: The management center especially adopts the software form of B/S architecture. All main programs are installed on the server, and the client does not need to install any software on the client, and can log in to the system through the Web method, which greatly simplifies the client computer load, reduces the cost and workload of system maintenance and upgrades, and reduces users The overall cost.
(3) Use process
In the parking garage using the parking guidance system, when the car owner arrives at the entrance of the parking garage, he can check the overall usage of the parking spaces in the current parking garage according to the combined guidance screen or the total remaining space screen. If there are no free parking spaces, admission is prohibited, if there are free parking spaces You can enter the parking lot. After entering the parking garage, the owner can freely choose a large parking area (such as area A, area B…) that he wants to go to according to the remaining space information on the area guide screen and the arrow indication, and then according to the remaining space information of the guide unit And the arrow indicates to choose a parking area you want to go to (such as A1, A2…), and finally, after the car owner arrives at the parking area, according to the color of the parking light, he can intuitively and quickly find the free parking space, and easily complete the entire parking During the process, there is no need to waste time looking for parking spaces, and no need to worry about “going astray” again.As shown in the figure: the following flow chart of parking space guidance
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