Traffic Monitoring popular

As technology advances, more and more new technologies in intelligent transportation started to come. Compared with some traditional techniques, video surveillance in the application of technology, while Kazakhstan is not perfect, but it can improve the efficiency of police Rate, but also to the general public with a more user-friendly open platform. Through video surveillance dig, content and wisdom traffic closer to believe that in the future there will be more applications point.

Intelligent Transportation to develop, enhance video surveillance or direct point

Convenient Recently, the "bus incident" panic, bus, subway and other travel safety has become the focus nowadays rectify matters. As an important part of the wisdom of urban development, the development of intelligent transportation is vigorously throughout, the use of video surveillance in information technology or direct business to improve efficiency and capacity of the entire transportation industry.

Security mount, urban security as an important line of defense, is an important tool for police and measures used to combat involving vehicles, road-related crime. Bayonet system requirements to achieve real-time capture, access to traffic flow, vehicle speed, vehicle Types, vehicle number and vehicle color data through video surveillance platform, you can get to the raw data needed, mining companies will according to different needs, research and development corresponding data of customers, based on the original data can be On track to achieve foundation analysis, plate processing and other functions, and for the police to provide other means to achieve blacklist bayonet dispatched to improve the work efficiency of the traffic police.

Electronic police, commonly known as "red light automatic recording system System ", now, the current functionality has not only limited to the electronic police records through a red light, but also guiding errant lane, riding a solid line pressure lane road, the vehicle traveling retrograde records and other illegal acts. Rely on traditional Through association with traffic lights, illegal use of the sense coil judgment means more and more to be found there are some limitations and false alarm rate. Currently, through further combined with video surveillance systems, video surveillance can To integrate into the wisdom of the traffic using the video signal state on judgment and behavior in the video of the vehicle, vehicle violation, such as the vehicle image capture and tracking.

In addition, the process of moving buses, the management staff, drivers, passengers pass through video surveillance for the entire visual management, including real-time video transmission, vehicle scheduling, emergency alarm, front-end image and picture upload function, so as to ensure the vehicle In the process of moving the safety, speed.

Why traffic video surveillance so the audience? Features are the key to the force

In recent years, road and medium-sized cities are crowded, people are looking forward to building intelligent traffic can improve existing traffic problems. According to the introduction of the "road safety" five "plan," "Road Traffic Technology Development Twelfth Five Year Plan", some authorities predict that the next decade of investment in the field of intelligent transportation will reach 182 billion yuan, its huge development opportunities is unprecedented.

Road video surveillance system is an important part of intelligent transportation, the main road into the city and highway surveillance monitoring in two parts. Urban road monitoring include: intersection electronic police information management, gateway and toll stations Collection, etc.; highway monitoring includes major road interchanges, tunnels and other illegal vehicles and trunk highway monitoring and recording images basis for the traffic control department. Why traffic video surveillance so the audience? Performance Features to force is the key.

(1) image quality: The quality of the camera is directly related to the performance under various conditions can capture clear pictures at night can distinguish feature information (such as plates, Color, face, contour, shape, etc.), image color collected is true. As road surveillance cameras, generally need to have a higher image quality, ordinary cameras should ensure 480 lines or more, high-definition camera should Guaranteed 1.4 million pixels or more.

(2) Performance and stability: the camera to continuously work in a variety of harsh environments that may occur to ensure the image quality does not deteriorate, low failure rate. If a traffic monitoring system, "eyes" bad or frequently go wrong, even if other parts of the system and then perfect the entire system defect is fatal.

(3) Environmental adaptation: the use of cameras to meet the scene illumination environmental changes, weather changes, monitor range, high and low impact, dust, impact, corrosion, electromagnetic interference, lightning and so on.

(4) Minimum illumination requirements: also known as sensitivity, the camera should be selected according to the site's 24-hour light conditions. Minimum illumination indicator can not just look at the figures in front of the number, but should see this indicator is under what conditions The measured. Such as color Illumination 0.15Lux/F1.4/50IRE/AGCON, which indicates that the illumination 0.15Lux amount of light with F1.4 lens, the video signal level measurement in 50IRE (350mv), measured under the conditions AGCON out. If you replace the light through large F1.0 lens, the video signal level measurement in 25IRE, illumination indicators measured lower. Since Sensitivity and image quality 1/2 inch CCD camera than 1/3 inch CCD camera, using the priority to 1/2 inch CCD camera.

(5) SNR: In good light, the signal to noise ratio of the camera are good, no noise point of the image point of view, but in low light, the camera image signal to noise ratio is still clear indicators of good point less noise, poor signal to noise ratio of the camera, the noise would drown the whole point of the image. Give priority to the use of not less than 50db SNR camera.

(6) HSBLC: road surveillance cameras generally require a clear shot at night, vehicle license, which requires a better indicator light suppression. In the professional broadcast television cameras, this indicator is called low smear. Adoption of this Camera technology, can effectively inhibit the head of the light, the vehicle license plate is captured more clearly, true full screen, shown in Figure 2. Many road surveillance cameras using "eclipse" technique, shot at night vehicle license According to good effect, but also often in the daytime, "Eclipse," which affects the appearance and integrity of the overall image.

(7) BLC: license plate camera shot at night, backlight compensation technology is good or bad, is directly related to clearly distinguish whether the license plate number, which affects the accuracy of video detection and analysis system output.

(8) color reproduction: the camera is no specific color indicators only make true color adjustment and white balance adjustment using chroma reduction. Different types of cameras are different degrees of color reproduction, this indicator is only by comparing and field commissioning and true color.

(9) Wide dynamic features: wide dynamic camera glare suppression effect is very good, but there is a wide dynamic CCD camera and DPS wide dynamic camera when shooting fast-moving vehicles are not given satisfactory results. Follow DPS with new technology matures, the future path of surveillance cameras will be widely adopted DPS wide dynamic camera. At toll stations, car parks and other places, the application of wide dynamic camera will achieve good results.

(10) Easy installation: Most road surveillance cameras installed on 6-15 meter-high column, installation and removal require special tools, cars, aerial work is also more dangerous, if the quality is not reliable or debugging convenient, it is bound to the construction and maintenance great cost, and affect the normal use.

Epilogue

Traffic congestion, traffic safety monitoring as one of China's most criticized and medium-sized cities, "urban disease" has become increasingly prominent. In a huge road traffic online, how to enhance traffic control, regulate traffic behavior, to protect traffic safety has been After that we need to solve the problem. Thus the emergence of intelligent transportation, it is the future direction of the transport system, which aims to establish a comprehensive, real-time accurate and efficient integrated transport system, to "protect the safety, improve efficiency Rate, improve the environment, saving energy. "Believe in the future under continuous development, bringing integration, more and more convenient.