chrispeng [ad_1]
First, the requirements are introduced:
There are many units (government agencies, military management zones, public institutions, business units, high-end communities, etc.). The management requirements for vehicle entry and exit are very simple but very strict. That is, vehicles belonging to their organizations can enter, and other foreign vehicles are prohibited from entering. , Or go through certain registration procedures at the entrance and exit before allowing entry.
The current measures to address this need are as follows:
Manually controlled by entrance and exit guards (primitive and labor-intensive);
Use simple vehicle access management equipment;
Adopt more functional and intelligent vehicle access management equipment.
This program will introduce the “Non-Stop Access-Parking Lot Management System” integrated by Tiger
Second, pass without stopping-Parking lot management systemThe relative advantages and disadvantages of:
1. Non-stop traffic-introduction to the efficacy of parking lot management system (relative advantages)
Non-stop traffic-parking lot management system, when a vehicle belonging to its organization is approaching the entrance (within 10 meters), the barrier will automatically open The car can pass directly through the entrance and exit without stopping.
Non-stop traffic-relative advantages of parking lot management system:
Compared with the manual control of entrance and exit guards, a considerable degree of automation is realized, which reduces the difficulty and workload of entrance and exit guards;
Compared with the parking lot system that confirms the identity by swiping the card at a short distance, it has realized a considerable degree of intelligence, eliminating the process of parking-opening the window-swiping card-starting traffic of the organization’s vehicles; (the main advantage of this system is here, saving The process of going to the parking lot, opening the window and swiping the card, the passage of vehicles becomes much easier);
Compared with the full version of the vehicle management system, this system lacks some functions, but the system supports the addition of components for upgrades, which can be upgraded to “full version-remote identification-no-stop traffic-parking lot management system”;
It can be run offline (without the computer control program), and can transmit the vehicle’s travel records when running offline when it is online again.
Second, pass without stopping-parking lotIntroduction to the lack of functions of the management system
Non-stop traffic-the parking lot management system only judges whether the car is a vehicle of the organization, opens the gate for it when it judges it, and ignores it when it judges whether it is not, so it is relatively “full version-remote recognition-no parking Tongtong-Parking Lot Management System” has the following missing functions:
When non-organized vehicles need to pass through the entrance and exit, they need to be handled manually;
The judgment condition of this system is single, it is only recognized by the “electronic tag” installed in the car, and does not have any other recognition methods such as: license plate recognition, image comparison recognition, etc.
This system does not have the function of judging the number of remaining parking spaces;
This system does not involve the management of complex vehicle parking charges, and the charging problems need to be solved manually;
Third, the configuration structure and working logic of this system
Non-stop traffic-parking lot management system consists of five parts: ground sensing coils and vehicle detectors, high-speed and anti-smashing barriers, remote card reader controllers, vehicle electronic tags, and software for issuing tags.
1. In the case of a conventional one-way lane, the working logic of this system is as shown in the following figure:
620)this.style.width=620;” border=0>
When the vehicle is driving in the direction of the arrow
After the vehicle is pressed to the ground feeling of No. 1, afterVehicle detectorTransmit a signal to the card reader controller to trigger the card reader controller to read the card;
The card reader controller reads the electronic tag of this vehicle and transmits the signal to the barrier; if the card reader controller cannot read the electronic tag, there is no signal to the barrier
The barrier opens after receiving the signal;
After the vehicle has passed the ground sense No. 2, it will send a signal to the barrier after vehicle detection, and the barrier will automatically close;
The vehicle passed smoothly without stopping during the passage
The card reader controller records the specific conditions of this pass: vehicle, time, etc.
2. Unconventional single lanes are used in two directions. The working logic of this system is as shown in the figure below:
620)this.style.width=620;” border=0>
This system requires the following configuration:
1, 3 ground induction coils, A, C connected to a vehicle detector and then connected to the card reader controller / B connected to a vehicle detector and then connected to the barrier
2. 1 high-speed barrier with 3-layer anti-smashing function
3. 1 dual-antenna long-distance card reader controller, antenna No. 1 facing outwards, antenna No. 2 facing inwards
4. Several electronic tags for vehicles
5. Vehicle management software, responsible for viewing vehicle entry and exit records, and assigning vehicle electronic tags
The system management logic:
(1) When the vehicle moves from the outside to the inside
After the vehicle is pressed to the ground sense of A, the card reader controller is triggered to read the card;
Antenna No. 1 will read the electronic tag of this vehicle and transmit the signal to the barrier;
The barrier is open;
The barrier will automatically close after the vehicle passes B ground sense;
The vehicle is pressed to C ground again, and the card reading operation is started. If the card is read, the system will automatically find whether the target card number is in or out of the field. After judging that it is any operation of entering or leaving the venue, the card reader controller does not record the card number and does not send a signal to the barrier; if the card is not read, the management system will not respond;
The vehicle enters the venue smoothly
(2) When the vehicle runs from the inside to the outside
After the vehicle is pressed to the C ground sense, the card reader controller will be triggered to read the card;
Antenna No. 2 will read the electronic tag of this car and transmit the signal to the barrier;
The barrier is open;
The barrier will automatically close after the vehicle passes B ground sense;
When the vehicle is pressed to ground A, the card reader controller will make judgments and operations the same as when it entered;
The vehicle went out smoothly
Preventive treatment of exceptions:
On both sides of the aisle, convex mirrors are set in areas outside the ground sense A and C to prevent two or more vehicles from encountering a dilemma in the aisle
Fourth: The performance advantages of important parts of the system:
1. The performance advantages of the remote card reader controller
620)this.style.width=620;” border=0>
2. The remote card reader controller is used as a device to determine whether to open the gate in this system. Its core performance requirements are stability and sensitivity, and it maintains good coordination with other devices in the system. Its specific performance parameters are as follows:
(1) Input power: 7V-24V, or choose PoE
(2) Working power consumption: average power ≤ 12W
(3) Current of the whole machine: when standby: ≤0.5A; when reading card: ≤2.0A
(4) Operating frequency: 902 ~ 928MHz
(5) Working temperature: -20℃～+55℃
(6) Output power: 27 ~ 32dBm (adjustable between, factory setting: 32dBm)
(7) Working mode: in broad-spectrum frequency hopping (FHSS) or fixed frequency mode
(8) Number of antennas: 1-4
(9) Reading distance: Reading distance ≥ 4m (varies 4～10m according to different antennas)
(10) Card reading speed: average reading time per single word (32bits) <9ms
(11) Card reading mode: automatic card reading every certain time, or input trigger signal or command to control reading
(12) One-time card reading: With anti-collision detection function, 60 cards can be read in batches at a time
(13) Communication interface: RS232, RS485, TCP/IP, Wiegand
(14) Support agreement: EPC Gen2, ISO18000-6B
(15) Input and output control signals: 4 inputs, 4 outputs
(16) Size: 450mm*450m*80m (all-in-one, with antenna and card reader controller size)
2. High speed with anti-smashing functionBarrierPerformance advantages
620)this.style.width=620;” border=0>
High-speed barrier with triple anti-smashing function: induction detection anti-smashing + torque anti-smashing + infrared detection anti-smashing, in addition, when the rod itself is treated with an anti-smashing inlaid inflatable rubber tube, it also has an anti-dropping rod design.
The most important performance of the barrier is safety. It cannot hit a car or a person. Even if it hits a vehicle or a person, it cannot cause serious injury. This barrier contains 4 anti-smashing measures:
(1) Induction detection and anti-smashing, that is, when the vehicle does not leave the ground sensing range in front of the barrier, the barrier will not fall.
(2) Infrared detection to prevent smashing, using infrared beams to detect whether there are vehicles or pedestrians in the area directly in front of the barrier, and the barrier will not fall when an object is detected;
(3) Torque anti-smashing. If resistance is encountered when the barrier is falling, it will immediately stop falling and raise the pole, which is an important measure to prevent vehicles or people from being injured;
(4) An inflatable rubber tube is inlaid on the lower edge of the gear lever, so even if it hits a car or a person, it is an inflatable elastic rubber tube instead of a metal rod to avoid serious injury to the car or person;
Another very important feature of the barrier is its high speed, which can quickly raise the bar, stop, or drop the bar after receiving instructions. Because the main performance of the entire parking lot management system in terms of sensitivity lies in the barriers. If a very sensitive card reader controller is paired with a dull barrier, it is also very difficult to use, and the dull barrier itself has an anti-smashing performance. It’s much worse.
Three, for vehicleselectronic labelPerformance advantages
620)this.style.width=620;” border=0>
(1) Working frequency: 860～960 MHz, ISO18000-6B or -6C protocol
(2) The effective reading distance can reach up to 15 meters (Note: the distance is due to the antenna andReaderThe transmit power varies).
(3) Passive card design, no battery required
(4) Memory capacity: 2048bits EEPROM memory, of which 64 bytes are UID, that is, the card number is read-only, and the rest of the storage area can be read, written, erased and then written.
(5) The memory can be repeatedly erased and written for more than 100,000 times, and the effective service life can reach more than ten years.
(6) Reading and writing rate: In theory, it takes less than 9ms to recognize the first card.
(7) Anti-collision: The binary tree anti-collision protocol is adopted to allow reliable reading and writing when there are multiple tags in the work area.
(8) The label is encapsulated by thin-film plastic and has a certain anti-dismantling function.
(9) Working temperature: -20℃ ～ ＋70℃ Storage temperature: -40℃ ～ ＋85℃
(10) Volume: 160mm*11mm*0.4mm
Or use standard card-type electronic tags for vehicles with a card tray to fix the visiting angle:
620)this.style.width=620;” border=0>
[ad_2]
