The license plate recognition system is a parking lot intelligent management system that has attracted much attention in recent years. It has been applied to vehicle management on highways in the past and has been applied to the entrance and exit control system in recent years, providing a new solution for the intelligent management of parking lots. . The license plate recognition system is generally composed of automatic barriers, vehicle detectors, electronic display screens, management computers, light-supplying devices, and license plate recognition cameras. Now we will introduce these devices to you.
1. Automatic barrier: mainly used to control the management of vehicles in and out of, in addition to this main function, automatic barrier is also configured with other features, such as flood control function, with its own display.
2. Vehicle Detector: The main function is to play a triggering role to prevent the surveillance camera from being turned on all the time. Only when the vehicle enters the lane, the sense of touch is turned on to activate the camera and play a role in protection.
3. Electronic display: Installed at the entrance, used to display real-time conditions of parking spaces and vehicle information, such as the remaining parking spaces.
4. Manage computers: Install license plate recognition system software and vehicle management software to control management and store data.
5. License Plate Recognition Camera: It is an indispensable device in the license plate recognition system. It can monitor and capture the passing vehicles and transfer the captured images to the system to achieve the effect of automatic license plate recognition.
6. Fill light equipment: eliminate the impact of insufficient light on the license plate recognition rate, according to the environment to choose different intensity light supplement equipment.
Parking lot number recognition system architecture The basic hardware configuration of a parking lot number identification system consists of a camera, master control unit, acquisition card, and lighting device. The software consists of an image analysis and processing software with license plate recognition and a back office management software that meets the specific application requirements.
The parking lot number recognition system then appeared in two product forms, one being hardware and software integration, or using hardware to implement recognition function modules to form a full hardware license plate identifier, such as a DSP. The other form is an open software and hardware system, that is, hardware adopts standard industrial products and software as embedded software. Both product forms have their own advantages and disadvantages. The advantage of the open system is that because the hardware adopts standard industrial products, the operation and maintenance are easy to grasp, and the purchase of spare parts can be obtained from any manufacturer, and there is no fear of permanent product failure or difficulty in procurement due to a failure or shortage of a manufacturer. The integrated hardware and software products are easier to operate and control when the user operates the product. For later maintenance and debugging is also easier to grasp.
Parking LPR technology route <br> <br> computer vision techniques to identify the license plate of the vehicle processes typically include image acquisition, license plate location, character segmentation, optical character recognition, the recognition result output 5 steps. The vehicle image acquisition method determines the technical route for license plate recognition. The two main technical routes that international ITS use are natural light and infrared light image acquisition and recognition. Natural light and infrared light do not have adverse psychological effects on the human body, and do not generate new electronic pollution to the environment. They are environmentally friendly technologies.
The natural light route refers to the use of natural light during the day, the use of auxiliary light sources at night, the collection of vehicle true color images with color cameras, and the use of color image analysis methods to identify license plates. The natural light color recognition technology line is consistent with the human photographic light habits, and true color images can reflect true image information of the vehicle and its surrounding environment. It can not only be used to identify vehicle license plates, but also can be used to identify vehicle license plate colors and vehicle flow. , vehicle models, car colors and other vehicle characteristics. Uses a camera to capture images, and simultaneously achieves all front-end basic video information acquisition, identification, and artificially assisted image forensic discrimination
The main function:
1, to avoid the reader installation and maintenance trouble.
2. The owner need not worry about the trouble caused by losing the IC card.
3, unique scrolling LED Chinese electronic display prompts, so that owners and managers at a glance.
4, reduce staff, high efficiency.
5. The cost of IC card is saved, and there is no need to worry about the insufficient balance of IC card.
6. It can be operated in conjunction with the police alarm system to effectively combat illegal vehicles and assist social security management.
7, there are anti-lift bar, all unloading, photoelectric control, with a high-quality gear balance brake system.
8, reliability and adaptability of the digital vehicle detection system.
9. The brake device can ensure that the brake bar will not fall when it stays under the brake lever, whether it is the approaching vehicle or the reversing vehicle.
1. Automatic barrier: mainly used to control the management of vehicles in and out of, in addition to this main function, automatic barrier is also configured with other features, such as flood control function, with its own display.
2. Vehicle Detector: The main function is to play a triggering role to prevent the surveillance camera from being turned on all the time. Only when the vehicle enters the lane, the sense of touch is turned on to activate the camera and play a role in protection.
3. Electronic display: Installed at the entrance, used to display real-time conditions of parking spaces and vehicle information, such as the remaining parking spaces.
4. Manage computers: Install license plate recognition system software and vehicle management software to control management and store data.
5. License Plate Recognition Camera: It is an indispensable device in the license plate recognition system. It can monitor and capture the passing vehicles and transfer the captured images to the system to achieve the effect of automatic license plate recognition.
6. Fill light equipment: eliminate the impact of insufficient light on the license plate recognition rate, according to the environment to choose different intensity light supplement equipment.
Parking lot number recognition system architecture The basic hardware configuration of a parking lot number identification system consists of a camera, master control unit, acquisition card, and lighting device. The software consists of an image analysis and processing software with license plate recognition and a back office management software that meets the specific application requirements.
The parking lot number recognition system then appeared in two product forms, one being hardware and software integration, or using hardware to implement recognition function modules to form a full hardware license plate identifier, such as a DSP. The other form is an open software and hardware system, that is, hardware adopts standard industrial products and software as embedded software. Both product forms have their own advantages and disadvantages. The advantage of the open system is that because the hardware adopts standard industrial products, the operation and maintenance are easy to grasp, and the purchase of spare parts can be obtained from any manufacturer, and there is no fear of permanent product failure or difficulty in procurement due to a failure or shortage of a manufacturer. The integrated hardware and software products are easier to operate and control when the user operates the product. For later maintenance and debugging is also easier to grasp.
Parking LPR technology route <br> <br> computer vision techniques to identify the license plate of the vehicle processes typically include image acquisition, license plate location, character segmentation, optical character recognition, the recognition result output 5 steps. The vehicle image acquisition method determines the technical route for license plate recognition. The two main technical routes that international ITS use are natural light and infrared light image acquisition and recognition. Natural light and infrared light do not have adverse psychological effects on the human body, and do not generate new electronic pollution to the environment. They are environmentally friendly technologies.
The natural light route refers to the use of natural light during the day, the use of auxiliary light sources at night, the collection of vehicle true color images with color cameras, and the use of color image analysis methods to identify license plates. The natural light color recognition technology line is consistent with the human photographic light habits, and true color images can reflect true image information of the vehicle and its surrounding environment. It can not only be used to identify vehicle license plates, but also can be used to identify vehicle license plate colors and vehicle flow. , vehicle models, car colors and other vehicle characteristics. Uses a camera to capture images, and simultaneously achieves all front-end basic video information acquisition, identification, and artificially assisted image forensic discrimination
The main function:
1, to avoid the reader installation and maintenance trouble.
2. The owner need not worry about the trouble caused by losing the IC card.
3, unique scrolling LED Chinese electronic display prompts, so that owners and managers at a glance.
4, reduce staff, high efficiency.
5. The cost of IC card is saved, and there is no need to worry about the insufficient balance of IC card.
6. It can be operated in conjunction with the police alarm system to effectively combat illegal vehicles and assist social security management.
7, there are anti-lift bar, all unloading, photoelectric control, with a high-quality gear balance brake system.
8, reliability and adaptability of the digital vehicle detection system.
9. The brake device can ensure that the brake bar will not fall when it stays under the brake lever, whether it is the approaching vehicle or the reversing vehicle.
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