First, system overview With the progress of society and the development of science and technology, people's need for safety precautions has become more and more urgent. One of the requirements is to implement automatic tracking and management of vehicles entering or exiting a unit or community. The long-distance vehicle access automatic identification management system is a modern intelligent management system developed to satisfy the user's increasing demand. The system is developed on the basis of Cryptag Census's automatic control technology. It integrates the world's most advanced long-distance card reading technology, computer technology, network technology and mechatronics technology into a single high-tech product to achieve legal vehicle freedom. Entry and exit, illegal vehicles for control purposes. The system is very open and easy to form with other systems more powerful integrated intelligent management system. Second, design ideas According to the user’s initial requirements for automatic tracking, automatic identification, and automatic control of incoming and outgoing vehicles, a set of vehicle tracking automatic identification management system is designed based on the principle of convenient use, comprehensive functions, safety, reliability, and strict management. All vehicles in this unit are assigned a Cryptag Census remote proximity card. Place a remote sensing antenna at the front of the barrier. When the vehicle carrying the proximity card reaches the sensing area, the remote reader reads the card number in the proximity card and passes it to the controller. The controller then determines the legitimacy of the read card number. If the card is valid, the relay on the controller operates and the connected intelligent gate opens. If the card is not valid, the relay does not actuate, and the barrier cannot be opened. At the same time, the computer gives an illegal card alarm. When the vehicle passes the barrier, the barrier will automatically drop the rod. When passing through the reader coil on the other side, the card reader will also read the card number of the proximity card, but it will not output it to the controller. Therefore, the barrier will not be opened again (this function is called the same card delay. ). The computer screen installed on the entrance will display the real-time data of the vehicle, such as the vehicle's license plate number, card number, vehicle's photos, and the access time. If you need to capture photos, you can add a camera to capture the vehicles in and out of the unit for management personnel. Timely check and post-inquiry, statistics, and can generate a variety of reports. Smart gates are used for the unit channel mouth. After receiving the door opening signal from the controller, the barrier gate opens automatically; after the vehicle passes through, it automatically drops the rod. In order to prevent the barrier guardrail from braking due to unexpected conditions, a geomagnetic coil is buried under each barrier. You can also install a pair of infrared radiation on the left and right sides of the entrance and exit. The barrier itself also has the function of anti-smashing car. When it encounters a certain resistance, it will lift the bar automatically during the falling process, thus forming three anti-smashing car protections. Taking into account the security and scalability of the system, the system uses a SQL database. Third, the system network structure Fourth, the system features 1 . Long-distance card reading can achieve fast stop and exit without stopping. The card is affixed behind the license plate or behind the windshield. When the vehicle enters or exits the gate, no card is required. 2 . Multi-card certification: When the vehicle card and the driver card can be legal at the same time, the vehicle can access the channel and improve the security of the system. 3 . Time control method. You can set the time for the entrance and exit of vehicles. If the vehicle can enter and exit at certain times, it cannot enter or exit at other times. 4 . Provide anti-submarine return function and anti-trailing function. When a vehicle carrying a legal card enters the gate, it can enter it only for the second time after it exits the gate. Prevent legitimate users' cards from being used by other vehicles and entering the channel. The anti-trailing function is to prevent an illegal vehicle from following a legal vehicle and enter the gate before the barrier falls. 5. Real-time vehicle picture display. When the vehicle enters the gate, the information on the vehicle's access is displayed on the computer at the same time for managers to browse and check. 6 . Card loss reporting function. Once the card is lost, the loss of the missing vehicle card can be reported through the computer. 7. Holiday regulations. The [Open Time Zone List] can be set via the software or the controller keypad (time menu). Allows for large-scale holiday, small-holiday, pre-major holiday, and pre-holiday pre-registration settings. The size of holiday dates can be set arbitrarily 8 . Open the door remotely. The gate of the gate can be opened remotely via an electronic map on the computer. 9 . Automatic door opening function. Gate barriers can be set to open in certain time periods. As of the peak hours. 10. Work offline. In order to ensure the security of the system, the controller can work independently from the computer. In the event of a network outage, the vehicle's access information is stored in the controller. Once the network is restored, the controller's records are automatically uploaded to the computer. Fifth, system equipment function description Low-frequency long-distance automatic identification of vehicle access management system consists of parking lot special controllers, card readers, proximity cards, induction antennas, gates, floor sense, and management software. 1. CRYPTAG CENSUS series long-distance proximity card TC1A proximity card and card holder Card mounting box 2, CR1A series long-distance card reader Product performance Dimensions: 300 x 230 x 40mm; Working temperature: -20~+60 °C; Working voltage: 12v -26v@160mA; Output: Wiegand, RS232, Clock/Data; Reading distance up to 2-3m Reading speed: 60km/h; Multiple readout: 55 frames/second; Thanks to the long-range recognition performance of the CR1A readers, vehicles equipped with legal proximity cards can enter and exit the sensing area at a speed of 60 km/s without parking or opening the window sensor card. The proximity card can be placed behind the windshield, or it can be held by the driver. When the proximity card is present, the card can be presented without sticking the card to the window. 3, parking lot controller Parking controller ◆ It can control one input and one output ◆ Adopt 16-bit microcomputer, transmission rate can reach 19,200bps 4, card box Smart card box, containing: (1) Card dispenser (2) LED display (3) Interface Control Board Tock card machine parameter performance: 1) Power Supply: DC 24 V ± 10% 2) Current consumption: Quiescent current 0.5A Operating current 1.5A 3) Card output speed: less than 2 seconds (after receiving the card output signal) issuance completed. 4) Interface Mode: RS-232C, TTL 5) Card Specifications: Size: 55×86 mm Thickness: 0.2mm-1.5 mm 6) Weight: 3 Kg 7) Installation dimensions: Mechanical drawings of reference accessories 8) Loading capacity: 400pcs (0.76 mm standard thickness card) 9) Insufficient card alarm: 7-50pcs±2pcs (adjustable) 10) Environmental Conditions: Operation: -10 – 50 °C, 0 - 90 % RH (no condensation) Storage: -10 - 60 °C , 0 - 95 % RH (non-condensing) 5, automatic barrier MA series intelligent barrier gate machine is an intelligent channel control device that incorporates a number of patents, integrates machine, optics, and electricity with the latest modern technology. Full-featured, super performance, and high reliability. It is widely used in highway toll stations, commercial parking lots, high-grade residential areas, factory areas, warehouses and other places where the traffic is the most persistent and busy and must be managed. It consists of a multi-functional car cross bar, a steel body, a movement unit, a motor power unit, a moment balance unit, and an electric control unit. MA208D: The overall appearance is novel and gorgeous, with great visual impact. Its cross section is oval, flash warning light airbag, air pressure sensor and tamperproof rubber strip. The rod body is made of high-strength and lightweight titanium-magnesium-potted table gold material, and the outer surface is sprayed with a white polyester paint layer with a red reflective film. The worm gear reducer, torque-changing mechanism, spindle support main bracket and other four parts are integrated into one body. After 45# steel integral casting is formed by a large-scale CNC machining center, the number of internal parts is greatly reduced, and the overall reliability and batch quality consistency of the equipment are greatly improved. This process is unique in its class. High quality body After being pickled, scaled, and electrostatically sprayed, the polymer powder enters the drying room of 295°C high temperature, and after more than two hours of hot melting and more than ten techniques, it has been applied as a standard process to the full range of barriers produced by the company. The surface treatment process of the machine to obtain excellent weather resistance, scrub resistance, UV resistance, and never fade properties. High-grade iron boron rare earth permanent magnet synchronous frequency control self-encoding motor. The speed of the motor can accurately follow the changes in the input frequency, and the torque is constant when the speed changes greatly. When the power and the rotation speed are the same, compared with other common motors, the starting impulse current and the volume are the smallest, but the torque is 2 to 3 times that of other motors, and when the motor is locked for a long time, the working current of the motor is not At the meeting. As a result, the lift of the gate can be made very smooth, and the timing for opening (or closing) can be precisely controlled. The theoretical accuracy can reach 1/1000 second, and the motor will never be damaged under any condition (excluding the use of overvoltage). . 6, sense of place (vehicle detector) The working principle of ground sense: When there is a car pressing on the ground coil, the iron material of the car body will change the magnetic field of the ground coil, and the ground sense module will output a TTL signal. The entrance and exit should be equipped with two sensation modules. In general, the first sensation is vehicle detection, and the second sensation is anti-smashing function to ensure that the vehicle will not close when the vehicle completely leaves the automatic gate. . The sense of the ground has the following functions: 1). When the vehicle is on the ground coil, the relevant signal is invalid and the barrier will not fall. 2). When the vehicle passes through the floor induction coil, it will send a close signal and the railing machine will automatically drop the rod. 3). When the railing is falling, when a vehicle is pressed against the coil rail, the lift rod will be reversed immediately. 4). And with the manual button or computer can complete the team through the function. Features: (6) The detector has a two-color high-brightness diode indicator on the outside to display the power supply and coil status or fault conditions. 7, voice control board * 10 voices * Sound capacity 60S * 12VDC Comparison of advantages and disadvantages of low-frequency long-distance readers and high-frequency readers. content CR1A series card reader 2.45G Reader 433M card reader 915M Reader distance 3 meters. 0-80 meters. 30 meters. 3-15 meters (unstable). Induction direction 360-degree omnidirectional card reader, not affected by mobile phone frequency and weather environment. The sensing area has a certain angle. 180 or 360 degrees. The card must be read within the range of 60 - 80 degrees of angle of the card antenna Cards must be read within a certain angle from the reader. The antenna sensing range is butterfly-shaped and there are many dead angles. Penetration performance Strong penetrating power, can penetrate the explosion-proof membrane of any vehicle, including some explosion-proof membrane wire, the owner does not need to drive the window to read the card. Due to the car's shielding effect, the cards of different vehicles are installed differently from top to bottom, and the vehicle reading distance is different. 433MHz tag interference is too large (most critical is from unpredictable individual user interference) Technical shortcomings Common problems Excerpts from literature Excerpts: In the absence of rx signals, data slicers compare noise with noise and produce spurious outputs. Is there a way to suppress this noise? Unfortunately, this is a normal phenomenon. You can add a bias to the limiter by adding a pull-up resistor to pin 20. But this will reduce the sensitivity. Another solution is to add a preamble to the signal at the transmitter so that the receiver can distinguish between signal and noise. Your microprocessor can periodically sample the receiver output to check if it is a valid signal. The long-distance card cannot penetrate the explosion-proof membrane. Usually, a hole is made in the car window of the owner to ensure that the card is normal and the appearance of the car cannot be guaranteed. Cards can not be close to the human body, must wear people outside, subject to mobile phones, weather outside the impact of large, the following snow and snow reading card speed will be discounted, and sometimes the sensing distance is less than 2 meters, the reader card is unstable. When you read a phone, you will see a card burn. Misreading No, there is a special parking model. The reader automatically judges whether it is in or out, even if the same lane is both in and out. Inaccurate distance leads to misreading. Because the card sensing distance is too far away, the vehicle is read far away, causing the other vehicle to release the embarrassing situation that it is unable to enter, although the distance of the card reader can be Tuning, but the adjustment range of change is very large, and different vehicles have different distances depending on where the cards are placed. Therefore, some cars are read far away, while others are very close to reading or even not reading. The long-range reader is at an angle of 80 degrees. The directionality is not good, and it is easy to produce the problem of left and right lane interference. The product is plugged at the peak of work. Reading multiple cards at the same time, the data is confusing. In the peak season of work, the car owner brings a lot of convenience, such as two cars at the same time, the card of the first two car owners to read, and then read the card of the first car, but the image captures the first car. Photos, so that the yard data is confusing and the security is compromised. Can not be identified, because the card is vulnerable to shielding, there is a serious card leakage phenomenon. Other items Card sleeps when it is not in the sensing area, guaranteed to use for 5 years Work in an active manner and actively send signals to the reader. The energy consumed by this method is relatively high, the card is always in working condition, and the general use time is not long. Without the use of power-saving technology, the general use time is not long, the nominal service life is more than 4 years, and the actual use is about 1 year. The use of active cards has a typical life of 1 year. Passive cards increase reader power (915 MHZ) to the human body.
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â—† Can be connected to different manufacturers, different brands of readers (such as: British Cryptag Census, HID, TI, Philips Mifare, Motorola, EM,
Legic readers, etc.)
◆ Communication with PC via RS485 or TCP/IP ◆ Professional design, exquisite production, easy installation, dimensions 151×105×35mm 
Rail bar system
MA series movement
Unique moment balance mechanism
Using a unique balancing mechanism (independent intellectual property rights), only one spring can be used to easily balance a 1- to 8-meter-long horizontal railing or articulated crank arm rail.
High-performance variable frequency motor
Highly integrated electrical control unit
It adopts the high reliability and highly integrated control system based on Atem I's latest microchip. In addition to the internal integrated infrared code controller, airbag sensor controller, torque sensor, infrared radiation controller, floor sensing controller, all-solid-state motor drive controller, gate movement position controller, power supply system and high-frequency head and In addition to the ten major systems such as the network controller, there are also five working modes such as manual/semi-automatic/automatic/car park logic/unattended parking lot logic. And can download, store or upload the address, working mode, equipment status and other information at any time. In the interface can also be achieved manually manual button control, wireless remote control, computer network control, and the toll system connection is extremely convenient, powerful features, and its volume is still the world's smallest of similar products. 
(1) This product is a smart, versatile vehicle detector.
(2) This product is designed to be compatible with many products, and it can automatically adjust the debugging for environmental changes or detection errors.
(3) There are four kinds of coil frequency (20~80KHz) on the front panel of the detector. The selector switch can be set by itself to prevent crosstalk.
(4) If the coil returns to its normal state after a fault, it does not need to be restarted (RESET) to return to normal detection. There is also a reset switch (RESET) that can be forced to reboot.
(5) Does not require heat engine time.
(7) Two sets of relay outputs:
Relay A is the incoming solid state output and can set extended output times of 0, 2, 5, 8, 10, 15, 20, and 30 seconds.
Relay B can be set to solid state output, incoming or outgoing vehicle instantaneous output, and coil fault output.
(8) The delay output of 2 seconds can be set by the DIP switch. If the speed of the vehicle exceeds 8 km (5 miles) or more, it will not be output when passing through the coil.
(9) The vehicle can be automatically adjusted to meet actual needs based on the site environment.
(10) ABS plastic housing, external dimensions: 76mm (deep) x 42mm (width) x 74mm (high)
(11) Product Weight: 305 grams
(12) AC 220V (50/60Hz) 
