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With the development of the economy and the continuous improvement of living standards, the ownership of family vehicles and social vehicles is increasing rapidly. Due to the limited ground space, the contradiction of insufficient parking spaces in the parking lot has become more and more prominent, and the importance of parking lot management will also be paid more and more attention. The core of its technology is the automatic monitoring, identification and automatic management of vehicles.
If you want to manage a parking lot and maximize utilization, you must first start with the entrance control of the parking lot. In the early days, the entrance to the parking lot was generally controlled by a manager and a railing. However, when the number of vehicles in the parking lot increases, the scale expands, and the demand for safety increases, the original management can no longer meet the needs of users. Then it is particularly important to conduct intelligent management of the parking lot and install necessary equipment at the entrance to control it.
The core of entrance control is the entrance control machine. The difference between the mainstream entrance control machines in the market should be mainly reflected in the identification method used: automatic pickup of thermal paper/magnetic stripe tickets, automatic pickup of induction cards, manual issuing of induction cards, and automatic coin insertion式等。 Equations and so on.
Entry control system configuration and description
The entrance control of the big hand control brand parking lot management system includes the basic configuration: entrance ticket/card reader control machine, barriers, vehicle detectors; it can also expand the parking guidance display, voice prompt operating system, voice intercom, and avoid red and green Signal lights, image comparison, automatic license plate recognition, long-distance non-stop card reading system, etc.
1. Schematic diagram of entry control configuration
2. Working principle
Induction monthly card vehicle management Each monthly card vehicle, that is, the internal vehicle, holds an inductive monthly card. When entering the venue, the car owner drives close to the entrance control machine at the entrance of the parking lot. The LCD screen on the control machine displays Chinese operation prompts, and the car owner holds the card in the card reading area of the control machine to read the card according to the prompts. If the card is valid, the entrance barrier will be lifted to let the vehicle; if the card is invalid, the LCD screen will display an invalid prompt and the entrance barrier will not operate. After entering the venue with a valid card, the entrance barrier will automatically drop.
The usage time, usage frequency and type of each monthly card can be set at will through the management software, and all vehicle card reading in and out events (including invalid card reading) will be recorded by the management software event recorder, which is convenient for statistics and verification afterwards.
When monthly vehicles enter and exit the parking lot, the entrance control system can also perform the following practical functions:
“One card, one car” function: that is, a monthly card can only park one car. When the card is used by a certain car, other vehicles cannot use this card, avoiding the situation of one card with multiple uses;
Card-reading exit recovery function: After the valid monthly card is read, the barrier is lifted, and the card-reading vehicle does not pass. 10 seconds after the vehicle exits, the lifted barrier will automatically fall to avoid the barrier always being lifted Status
Anti-smashing function: If the barrier detects a car under the bar during the falling process, the barrier arm will automatically lift to prevent the vehicle from being hit. After the vehicle has passed completely, the barrier arm will be lowered again;
Offline function: When the computer fails or shuts down, monthly card vehicles can enter and exit the field as usual.
Temporary car billing with paper ticket
When a temporary foreign vehicle wants to enter the parking lot, the owner drives close to the entrance control machine located at the entrance of the parking lot. The LCD screen on the control machine displays Chinese operation prompts. The owner presses the ticket pickup button on the control machine and picks up the ticket according to the prompts. The entrance way Lift the brake lever to release the vehicle. The parking ticket is a one-time-use thermal paper ticket with the entry time and bar code information printed in black on a white background, which is intuitive and effective, and the owner can judge the parking time by himself. After the ticket-collecting vehicle enters the venue, the entrance barrier will automatically drop.
Main function parameters of entrance control equipment
1. PIC-910KF entrance ticket/card reader control machine
The PIC-910KF entrance control machine is the entrance control core of the high-performance and high-stability parking lot charging management system with an embedded intelligent control unit. It provides practical, detailed, stable and advanced automatic control functions while effectively controlling costs, so as to be extremely competitive. The price of power meets the needs of customers. The PIC-910KF entrance control machine is used in the parking management system that has both monthly card vehicles and temporary vehicles. It is installed on the safety island on the side of the entrance passage of the parking lot together with other entrance equipment to monitor the entrance equipment and provide self-service for vehicles entering the venue.
2. PAB-20 high-speed digital barrier
The PA B-20 series of high-speed barriers are built-in intelligent control units, adopting special motors and advanced mechanical structure design, and are suitable for car stop devices at vehicle entrances and exits in various parking management systems. It is derived from the European product design style and the latest German mechanical structure design technology. It is more stable and reliable in work, stable in appearance, and meets the needs of customers with an extremely high cost performance. PAB-20 series high-speed barriers are mainly installed at the exit/entrance of each parking lot, or installed at the toll exit/entrance of the expressway, to limit the entry and exit of vehicles.
Technical application of entrance control
1. Combination of card and ticket to replace the traditional automatic card issuance
The materials used in entry control management vehicles should mainly reflect the identification methods used. However, it is also one of the requirements of users to save costs and reflect the concept of environmental protection. At present, large-scale parking lots in China mainly use smart card identification technology (such as non-contact IC cards and non-contact electronic tags), which is different from some countries in Europe and America. At present, many countries in Europe and the United States still use paper tickets as evidence for vehicle entry and exit.
2. CAN fieldbus replaces traditional RS485
CAN bus is a serial data communication protocol developed by German BOSCH company in the early 1980s to solve the data exchange between numerous control and test instruments in modern cars. It is a multi-master bus and the communication medium can be dual Stranded wire, coaxial cable or optical fiber.
Design and installation of entrance control
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