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1. System function
1. The license plate authorization of internal leaders and private vehicles is long-term and equipped with long-term cards. When the vehicle is 6-10 meters away from the retractable door, the card reader and the license plate dedicated camera will double-identify the card and the license plate, and the barrier will automatically lift the lever and the computer will meet the requirements. At the same time, record the time of vehicle entry and exit, and store real-time images.
2. After the team and the car connected vehicles need the approval of the leader, the authorization can automatically enter and exit the gate, and generate records and images.
3. Foreign vehicles must register with the guard room and exchange for a temporary card with a valid certificate before entering.
4. Vehicles of this unit cannot enter or leave with temporary cards, and only when the license plate number is consistent with the authorized information of the Vehicle Management Office can enter and leave.
5. During the absence of the leader on a business trip, the car administrator can remotely restrict the access rights of his car through the system.
2. Software function
1. Five leaders, including the director, political commissar, chief of staff, director of the political department, and logistics minister, can inquire about the in and out status of vehicles in the statistical unit in real time, including the images when they enter and exit.
2. The vehicle management office can use the computer to authorize the fleet, the permissions of the vehicles in the car company, the time of going out and returning, if you set two hours, the result will be two hours later, the gate will not be lifted, and you must ask the supervisor After the leader reports, you can enter.
3. The function of delegation of authority. If the personnel of the vehicle management office are temporarily involved and cannot be authorized to enter information, the vehicle management office can authorize the vehicle company to temporarily replace the work authority of the vehicle management office. These only need the vehicle management office to temporarily modify the authority of the vehicle company through the software. That’s it.
4. After the fleet receives the dispatch information from the vehicle management office, it can reply to the received and related information through the local area network, and print the dispatch order, and then come to the designated dispatched driver to sign and confirm, and archive it for future inquiries.
5. After the car company receives the order, it will report to the superior leader through the local area network that the order has been received.
6. The gas station can only be seen in real time through the software. The vehicle management office issues the refueling status of each vehicle and can reply in time.
7. The five leaders, including the director, political commissar, chief of staff, director of the political department, and minister of logistics, can view the execution of the above orders in real time through the LAN.
The working principle of the system:
The car dispatch management system adopts a two-level approval mechanism. The operator fills in the application car information. The car information includes the user, destination, planned time of going out, applying for the vehicle and reason for going out, etc. The examination and approval department reviews the outgoing application and approves it. After the data is reported to the approval department, after the approval of the leader of the approval department, the operator chooses to register the driver, print the dispatch form, and install a sensor card on the front windshield of each bus. When the vehicle goes out, the system detects that the vehicle card is authorized and automatically turns on The gate is released, and the vehicle is photographed at the same time. A vehicle detector is buried under the automatic door to detect that the vehicle has passed. The automatic door closes automatically. All equipment of the management system adopts network communication. The system uses tax-10 proximity card and rdd-w- 4 Waterproof and explosion-proof card readers are used for vehicle management. Vehicles that use local units are allocated a tax-10 long-distance vehicle card. Place a long-distance sensing antenna at the front of the automatic door. When the vehicle carrying the proximity card reaches the sensing area, the long-distance card reader reads the vehicle card and transmits it to the controller, and the controller judges the legitimacy of the read card number. If the card is approved, the relay on the controller will act and the automatic door connected to it will open. If the card is illegal, the relay will not operate, the automatic door cannot be opened, and the computer will give an alarm message of the illegal card for the guard to deal with. When the vehicle passes through the automatic door, the automatic door closes automatically. When passing the card reader coil on the other side, the card reader will also read the card number of the proximity card, but it will not output to the controller. Therefore, the automatic door will not be opened again. The computer screen installed at the passageway will display the entry and exit information of the vehicle in real time, such as the license plate, card number, photo of the vehicle, entry and exit time, so that the management staff can check in time and make inquiries and statistics afterwards, and can generate various reports .
System schematic diagram
Schematic diagram of system work: (position of the card on the windshield)
Remarks: The card reading distance is 20 meters, no parking is required, and the vehicle speed can reach 60 km/h. It solves the problem of car following, and solves the problem of general long-distance parking lots that cause no trucks to walk in front. Vehicles with cards behind are released without trucks But I can’t pass the question,
System Features
1. Long-distance card reading: quick access without stopping. The card is affixed behind the license plate or placed behind the windshield, and there is no need to show the card when vehicles enter and exit the passage.
2. Time control method: time control for vehicles entering and exiting the channel can be set. For example, vehicles can enter and exit at certain times, but not at other times.
4. Provide anti-passback function and anti-tailing function. When a vehicle with a legal card enters the passage, it can enter the second time only after exiting the passage. Prevent legitimate users’ cards from being used by other vehicles and entering the channel. The anti-tailing function is to prevent an illegal vehicle from trailing behind a legal vehicle and entering the passage together before closing the door.
5. Real-time vehicle photo comparison: When the vehicle enters the channel, the computer will display the photo of the vehicle, the driver’s photo, and the photo taken at the same time for the management personnel to browse and check.
6. Card loss report function: Once the card is lost, the lost vehicle card can be reported through the computer.
8. Automatic door opening function: The retractable door can be set to be in the door open state in a certain period of time. Such as vehicular traffic peak.
System hardware equipment introduction
1. Electronic label TAX-10
Features of TAX-10 long-distance active card:
• Two CR2025 batteries provide strong power for active cards
• Low-power design average power consumption is only 5uA (actually can be used for more than two years)
• Battery compartment design is convenient for battery replacement
• 2488MHz microwave working frequency band has high data transmission speed, long distance and low power consumption
Main Specifications:
• Recognition speed 150 tags/sec
• Anti-collision processing 80 tags read at the same time
• The recognition distance is up to 200 meters
• Working frequency band 2.4~2.5G
• Signal modulation method GFSK (Gaussian Frequency Shift Keying)
• Antenna polarization circular polarization
• color: White
• Size 82×55×5mm
2. Long-distance directional card reader
Features of Rdd-w-4 reader:
• The recognition speed of 100 tags/sec can identify fast-moving people or objects
• Reading distance and redundant data can be adjusted on site to facilitate integrator’s on-site construction
• Circularly polarized directional antenna design increases the arbitrariness of card configuration
• 2488MHz microwave working frequency band has high data transmission speed, long distance and low power consumption
Main Specifications:
• Recognition speed 100 tags/sec
• Anti-collision processing 80 tags read at the same time
• The recognition distance is up to 200 meters
• Working frequency band 2.4~2.48G
• Microwave communication error detection CRC16 cyclic redundancy check
• Antenna direction circular polarization directional antenna
• Communication interface RS485/Wigan/CAN
• Size 235×195×30mm
3. (Ground sense) vehicle detector
Working principle: When a car is pressed on the ground induction coil, the iron material of the car body changes the magnetic field of the ground induction coil, and the ground induction module will output a TTL signal. Two ground sensing modules should be installed at the entrance and exit. Generally speaking, the first ground sensing function is for the card reader to work after vehicle detection to prevent following the car. The second ground sensing function has the automatic door closing function to ensure that the vehicle is fully The off-vehicle detector is composed of a set of surrounding coils and a current induction digital circuit board to be used in conjunction with the control machine, or the coil is buried 10cm underground just below the level of the brake lever. As long as there is a vehicle passing on the road, the coil generates an induced current signal. The vehicle detector sends a control signal to the control machine after processing. The vehicle detector produced by our company uses multiple judgments of digital circuits, the sensing circuit will not drift, and there is no need to adjust the “zero” frequently. Technical description: The total length of the coil should be about 18-20 meters, and the ground induction wire should be a high-temperature insulated wire with a cross-section greater than or equal to 0.25 square millimeters; use a ground cutter to cut grooves on the hard cement floor with a depth of about 5-10 cm. The width is generally 5mm based on the thickness of the cut piece; then put the wire into the groove one by one, and then seal the groove with cement. Be careful not to float the wire out of the ground, and be careful not to insulate the wire when placing the coil The layer is destroyed to avoid leakage or short circuit. The lead wires should be twisted together and connected to the two loop ends of the ground in parallel, the length cannot exceed 4 meters, and the number of twisted pairs per meter cannot be less than 20.
The ground sensor has the following functions: 1). When the vehicle is on the ground sensor coil, the retractable door will not close. 2). When the vehicle passes the ground induction loop, it will send out a close signal and the barrier will automatically close the door. 3). When the retractable door is closing, it will open automatically when a vehicle presses the coil. 4). Cooperate with manual buttons or computer to complete the fleet passing function.
3. Special day and night camera for license plate
• 1/3 high-resolution day/night camera • 520 lines / color mode; 570 lines / black and white mode • Minimum illumination color 0.45Lux (F1.2, 50IRE color mode); 0.01Lux (F1.2, 50IRE black and white mode) • Signal-to-noise ratio is greater than 50db • Multi-point metering / center metering optional (64-zone measurement area can also provide the best backlight compensation effect for moving objects) • Automatic tracking / manual white balance optional • Color black and white and color conversion Black external control is optional • Auto brightness/normal control is optional • Dual power supply (VCC-4790PC 220/AC) Performance characteristics: • High definition • DSP processing chip reproduces excellent color reproduction, black and white without color spots • Filter switching (IR, CAT) • Eight kinds of shutters can be selected • Ultra-low illumination • Color, black and white and color/black external can be manually remotely controlled • Color/black and white conversion sensitivity adjustable • Sharpness optional; R/B chromaticity adjustable, Anti-magnetic and anti-interference function • Dual power supply (12VDC/24VAC) • The RS-232 port can be used for secondary development. Applicable occasions: road monitoring, airports, docks, ports, outdoor communities, parking lots, prisons and other places with low-illuminance magnetic interference and harsh environments
4. SK4000 Video Capture Card
SK4000 video capture card is a PCI video card specifically for multi-channel video taking. It has the characteristics of low CPU occupancy rate, multi-channel real-time display and so on. Support image storage as AVI or use software MPEG-4 compression engine for compression, provide adjustment of image contrast, chroma, brightness, and gray level, and can capture dynamic images in image channels and store them as JPG static images. At the same time it provides a complete system monitoring program. It can realize functions such as digital video recording, network transmission, dynamic detection, PTZ control, file playback and system management, and it supports web browsing. It uses real-time parallel processing technology to truly realize real-time compression processing from 1 to 16 channels. Each video signal is compressed by MPEG4 algorithm, in the standard CIF (320*240NTSC/352*288PAL) image format. Each channel can operate independently without interfering with each other. VC4000 uses super powerful Philips 7130 chip. The Philips 7130 chip is a 9bit ADC. Compared with the 8bit ADC BT878 chip, both the image quality and the color saturation are much stronger. Its unique 4-line 3D comb filter can automatically eliminate noise so that its image monitoring quality can be improved by about 35% compared with ordinary BT878. • Support one machine with multiple cards, one card with four channels, support PAL/NTSC, and all channels work at the same time without interfering with each other. • Supports multiple simultaneous previews of Overlay, with extremely low CPU usage. • Software Video codec: Support MPEG 4 sample profile codec Compression bit rate: 64K-2Mbps Frame rate 1-30 frames/sec optional Support CIF Video MPEG 4 Encorder • Provide MPEG4 compression engine, which can compress multiple video images. • Support compressed stream/preview stream to overlay year/month/day/hour/min/sec, text function. • Provide dynamic AVI image capture. • Can capture dynamic images as JPG static images and save them to disk.
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