Tian’an Cyber ​​City parking lot management system renovation project case

Shenzhen Tian’an Digital City occupies an area of ​​about 300,000 square meters, with a daily traffic flow of about 60,000 vehicles in the office and residential areas. The two areas are independently managed and charged. Prior to this, four brands of parking equipment had been replaced, but neither hardware nor software could meet the huge traffic and data processing needs of Tian’an Cyber ​​City’s parking lot, resulting in low work efficiency and prominent accounting management loopholes. , To make the system paralyzed. Four security guards need to be assigned to each lane to take turns on duty, causing lane blockage and inability to handle the issuance and payment of vehicles entering and exiting the venue in a timely manner. In particular, safety is difficult to guarantee and a huge waste of human resources.

After on-site inspection, combined with the actual needs of Tian’an Digital City, the proposed design system architecture adopts industrial-grade TCP/IP networking, and the management mode will be changed from the previous “independent control, separate management” to “site control, centralized management” . The overall system topology is:

·Upper level: management center server-“management”;
·Middle layer: central switch and access switch-“transport layer”;
·Bottom layer: professional industrial computer, industrial image processor, entrance and exit control machine-“application layer”.

　　Workspace

The large ground parking lot adopts T6 type control machine, equipped with MAG25 type high-speed car stop (the brake lever take-off and landing time is less than 1.8 seconds), and the system technology platform adopts stable and mature rainproof “card-type” hard paper ticket + SL01 long-distance reading and writing The system (sensing distance ≤ 15 meters), and is designed as a top-mounted type, the read-write surface of the sensor card is perpendicular to the ground lane.

The underground garage adopts T12 type mini control machine, and is equipped with D6 type car stop (the brake lever take-off and landing time is less than 4.5 seconds). For the convenience of internal owners, the reading and writing system also adopts the SL01 long-distance reading with a sensing distance of 3~15 meters. The writer does not prevent vehicles from entering and leaving the basement.

　　Residential area

The selection of controllers and stoppers for surface parking lots and underground garages is the same as that of office area equipment, except that the reading and writing systems all adopt IC technology, which can be expanded and compatible with other all-in-one card equipment. Except for the underground garage of Golf Longyuan, which needs to be open to monthly trucks and temporary vehicles, the underground garages of other residential areas are only open to authorized residential monthly trucks. The entire parking lot management system is designed in a distributed structure, and the system network structure is shown in Figure 1.

The database server is the core of the system, and the entire system is coordinated and managed uniformly. The parking lot management system forms an independent subnet, which is connected to the property management subnet of Tian’an Digital City, and is integrated into a larger all-in-one card network system. The entrance and exit workstation in the parking lot management system manages and monitors the terminal equipment in real time—controller and car stopper work. The workstation uses TCP/IP communication protocol to realize data transmission and sharing with the upper management computer.

　Examples of solutions

Exit B: The north entrance of Tairan No. 5 Road, which connects to Tairan No. 4 Road, is the entrance for cars and pedestrians. There is a lot of traffic during the rush hour, with an average of 15 vehicles per minute. After the renovation, see the scene in Figure 2.

　Transformation implementation

The road surface of the vehicle is about 15 meters wide, and it is designed to be two-in, two-out and four-lane. In order to optimize road resources, rationally divert incoming and outgoing vehicles, and alleviate traffic pressure, the design is as follows:

·1# The entrance lane is 2.7 meters wide, a small safety island is built, unattended, and entrance control equipment is placed;
·The 2# entrance lane is designed to be 3.8 meters wide, which can be used as a fire lane to facilitate the entry of large vehicles;
· The 1# exit lane is designed to be 3 meters wide, and a standard safety island is built to place the control equipment of the exit lane and the 2# entrance lane. A stainless steel elliptical guard box is set on the safety road, and the on-site supervision equipment is placed in the guard box. , And used by the on-duty personnel on duty;
· 2# lane is 2.8 meters wide, and a standard safety island is built to house the control equipment for this exit. A stainless steel elliptical guard box is set on the island. On-site supervision equipment is placed in the guard box to supervise 1# entrance and 2# exit, and is used by duty personnel on duty.

Modification plan

In order to effectively increase the traffic rate, the entrance adopts paper ticket + long-distance reading and writing technology, equipped with high-speed car stopper; each of the two exit booths is equipped with a professional industrial computer, industrial image processor, barcode scanner, document capture camera, Switches, UPS and other equipment.

Install entrance control equipment on the safety island next to the right lane at the entrance. A set of one-in-one-out control equipment can be installed on the middle safety island, and exit control equipment can be installed on the safety island beside the right lane at the exit to realize two-in and two-out. Four-lane management mode. There is no distinction between a moon truck lane and a temporary lane. The power cords, video cables, and communication network cables of the entrance and exit equipment are connected to the power box, industrial control computer, and switch of the exit guard post along the PVC pipes embedded in the safety island. The transmission optical fiber of the access switch in the two guards is along the PVC pipe embedded in the exit safety island to the telecommunications well near the east side of the science and technology service center, and then to the monitoring center of the property management office through the telecommunications pipeline, and is connected to the central switch.

The moon truck supports long-distance cards and can quickly enter the office area from this port. The long-distance reader is installed on the top of a high column. The main column is 2.8 meters high, and the auxiliary pole extends 50 cm from the driveway. The reader is hoisted on At the top of the auxiliary support bar, the moon truck can choose an entrance lane to enter the field.

Temporary vehicles enter the venue to pick up paper tickets by themselves, and they can leave the venue normally only after they exit the venue and pay the fee. Temporary vehicles can choose one of the entrance and exit lanes to enter and exit the venue. Special vehicles enter the venue as temporary vehicles. When leaving the venue, the owner needs to show relevant documents and be photographed with a photo of the document for record. The user can decide whether to charge or free. No matter which method, the owner can be documented. The equipment selection and appearance color of port B are the same as those of port A. Lunar trucks and temporary vehicles entering the venue from port B can exit the venue at ports A, C, D, and E, and vice versa, but they cannot pass through all the entrances and exits of the residential area.

　Software design of parking lot management system

In order to complete the monitoring of the parking lot and to ensure the reliable operation of the system, in addition to the selection and design of the hardware according to the above requirements, the function planning and design of the software are also very important. The design concept follows the principles of simplicity, intuition, practicality, stability, safety, and ease of operation. The developed software can realize vehicle access control, vehicle information (including images) recording and display, and parking lot related information display. The administrator can browse, count, and Print and modify related information and other functions.

Especially in view of the disadvantages of traditional parking lot charging, the newly developed charging software makes the charging management of the parking lot more convenient, realizes automatic timing charging, and reduces charging errors and payment disputes. Fully automatic report management is convenient for financial settlement, and the friendly operation interface makes it more convenient to use, and it can be operated without professionals.

According to the actual functions of the Tian’an parking lot management system and the large number of fixed owners of Tian’an Cyber ​​City, the unit owners can extend the card renewal by unit year, month, and day to reduce the need for cumbersome procedures for individual card renewal during operation, so the software is designed to Fully open mode, minimize manual intervention and operation during operation, system parameters can be adjusted online, working status can be visually displayed for easy monitoring and operation, power-off self-protection and power-on self-recovery are the principles, so that the system does not crash during operation, No interference in signal acquisition and transmission.

This convenient system software design is the foundation and feature of the success of the parking lot. The software design is planned according to the function and performance requirements of the system, and the effective management is mainly around the process of vehicles entering and leaving the parking lot:

·System management: system login, password modification, connection settings, data backup, etc.;
·Access management: video parameter setting, data upload, access interface management, etc.;
·Online communication: reader settings, reading records and offline records, setting parking spaces display screens, etc.;
·Inquiry reports: fee inquiries, on-site vehicle inquiries, statistical reports, etc.;
·Auxiliary management: system settings, card detection, reading offline records, etc.