Camera Horizon of Car Rearview System
Camera horizon also refers to the camera to reflect the range, or you can say the field of view. There are three elements of the camera horizon in the Industry, namely the distance from the driver's eyes to the rear-view camera; rearview camera size and radius of curvature of the rear-view camera. There is a certain relationship between the three elements, when the car rear view system distance is the same with its size, the smaller the radius of curvature of the camera, the greater the camera reflects the horizon. When the radius of curvature of the camera is the same, the larger the size of the camera, the camera reflects the horizon is greater. But things always have a dual nature, although the larger the field of view, the smaller the radius of curvature of the camera, but the camera reflects objects deformation degree. Industry standards, not be greater than 3% distortion rate of the plane camera, convex camera distortion rate must not be greater than 7%, the requirements do not reflect the crooked-kind images.
Car Rearview Camera Reflectance Index
Meanwhile, car rear view camera also has a reflectivity index. The greater the reflectivity, the clearer the camera reflects the image. The size of the reflectance has something to do with the camera surface reflection film material. The car rearview reflection film for general use of silver and aluminum as the material, they do small reflectance of 80%. High reflectivity in a number of occasions that there will be side effects, such as driving at night under the irradiation of the back car headlights, driving within the rearview camera reflection will produce glare, affecting traffic safety. Therefore, most people generally use the inside rearview camera prism camera. Inside rearview camera there are an automatic discoloration (Auto-Dimming), its electronic photosensitive detector can automatically distinguish impose external natural light the light source, within a few seconds to adjust the camera within the liquid crystal material by the current change, from colorless change to colored in order to adjust the reflectance of the inner rearview camera so as to resolve the glare problem.
Mounting Position of Car Rearview System
The distance from driver's eyes to the rear-view camera is the installation location of the rear-view camera, it has a direct impact on the event horizon of the rear-view camera, clarity and auto contour size, traffic safety is very important. Therefore, the rearview camera mounting position is required to achieve the requirements of industry standard horizon; rearview camera should be as close to the driver's eyes, should be easy for drivers to observe, head and eye movements as small as possible; rearview camera should be installed in the body up and down the position of the minimum vibration. The cars now, for example, the exterior camera is mainly installed on the front door, and the control mode has electric and manual.
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This article is come from:http://www.china-autosupplies.com/index.php/car-rearview-camera-structural-principle.htm
Showing posts with label car rear view system. Show all posts
Showing posts with label car rear view system. Show all posts
Tuesday, February 19, 2013
Monday, September 3, 2012
Car Rear View System - New Automotive Safety Field
Rear-view system is thoroughly subverted
For the traditional optical rearview mirror defects, the professionals have innovated and optimized using different techniques from different angles. According to existing products on the market, including radar/rear view camera/distance logo/infrared night vision and so on, from a degree of sense, which is a thoroughly subversion of rear view system.
Reversing radar technology
The system or apparatus made using radar (laser, ultrasound) ranging principle have been widely used in the automobiles. It can accurately measure the distance between the wave source and the obstacle, informing the driver of obstacles around by sound or a more intuitive display. It solves the trouble of driver when parking and starting the vehicle, which helps the driver wipe out the vision of dead ends and blurred vision defects, improving the safety of driving. The reversing radar system has undergone six generations of technological improvements; the six generations of products have different features either from structural appearance or from performance price. Currently digital display, screen display and magic mirror reversing radar are mostly used.
Video monitoring technology (automotive rear view system)
Visual monitoring system is to install camera at the top of the trunk lid or license plate, and pass the shot pictures to the screen (usually liquid crystal display) in front of the driver's seat, the driver will be able to know the situation after the car by only looking the display in front of him. It can be divided into two modes: wired form of link cameras and displays and wireless rear view system: using 2.4G wireless video technology, transmitting the camera signal to the display by wirelessly method. This technology has solved the reverse, night vision and other problems. The car rear view system uses two kinds of CCD or CMOS imaging technology like other video surveillance technology. Due to the special imaging of car rearview system, CMOS guarantees quality image and quality, which has accounted for most of the market with lower cost; in addition, the wireless transmission makes the system installation to be easier.
Infrared night vision technology
It is the night vision technology to implement observe by initiative infrared lamp irradiation and target reflectance infrared source. Currently, the infrared lamp used in the monitoring field is mainly semiconductor solid-state light-emitting IR (infrared light-emitting diode) lights, its biggest advantage is completely free of red storm points and long life. Infrared night vision technology mainly matches with the application of visual surveillance technology, which can make the cameras to improve night driving vision by using infrared ray.
Automotive rear-view system can achieve visual imaging
Compared to reversing radar system, car rear view system has the advantage of accurately judging distance, this is because the gutter, cliff, protruding rebar, bamboo poles and other ultrasonic sensor in the rear of the car are insensible, which is the dead ends of reversing radar system in reversing safety. Now the car audiovisual systems become more and more perfect, automotive rear-view system can achieve visual imaging by integrating radar, infrared night vision and even with the GPS display.
This article is come from: http://www.rearviewsystem.net/rearviewsystem/index.php/car-rear-view-system-new-automotive-safety-field.htm
For the traditional optical rearview mirror defects, the professionals have innovated and optimized using different techniques from different angles. According to existing products on the market, including radar/rear view camera/distance logo/infrared night vision and so on, from a degree of sense, which is a thoroughly subversion of rear view system.
Reversing radar technology
The system or apparatus made using radar (laser, ultrasound) ranging principle have been widely used in the automobiles. It can accurately measure the distance between the wave source and the obstacle, informing the driver of obstacles around by sound or a more intuitive display. It solves the trouble of driver when parking and starting the vehicle, which helps the driver wipe out the vision of dead ends and blurred vision defects, improving the safety of driving. The reversing radar system has undergone six generations of technological improvements; the six generations of products have different features either from structural appearance or from performance price. Currently digital display, screen display and magic mirror reversing radar are mostly used.
Video monitoring technology (automotive rear view system)
Visual monitoring system is to install camera at the top of the trunk lid or license plate, and pass the shot pictures to the screen (usually liquid crystal display) in front of the driver's seat, the driver will be able to know the situation after the car by only looking the display in front of him. It can be divided into two modes: wired form of link cameras and displays and wireless rear view system: using 2.4G wireless video technology, transmitting the camera signal to the display by wirelessly method. This technology has solved the reverse, night vision and other problems. The car rear view system uses two kinds of CCD or CMOS imaging technology like other video surveillance technology. Due to the special imaging of car rearview system, CMOS guarantees quality image and quality, which has accounted for most of the market with lower cost; in addition, the wireless transmission makes the system installation to be easier.
Infrared night vision technology
It is the night vision technology to implement observe by initiative infrared lamp irradiation and target reflectance infrared source. Currently, the infrared lamp used in the monitoring field is mainly semiconductor solid-state light-emitting IR (infrared light-emitting diode) lights, its biggest advantage is completely free of red storm points and long life. Infrared night vision technology mainly matches with the application of visual surveillance technology, which can make the cameras to improve night driving vision by using infrared ray.
Automotive rear-view system can achieve visual imaging
Compared to reversing radar system, car rear view system has the advantage of accurately judging distance, this is because the gutter, cliff, protruding rebar, bamboo poles and other ultrasonic sensor in the rear of the car are insensible, which is the dead ends of reversing radar system in reversing safety. Now the car audiovisual systems become more and more perfect, automotive rear-view system can achieve visual imaging by integrating radar, infrared night vision and even with the GPS display.
This article is come from: http://www.rearviewsystem.net/rearviewsystem/index.php/car-rear-view-system-new-automotive-safety-field.htm
Tuesday, July 31, 2012
Benefits of Car Rear View System
Choosing a wireless car rear view camera system is a perfect solution for those who find it very hard in reversing your vehicle. By mounting a camera on the back of your vehicle, you can see exactly what is behind your car. Moreover, besides car rear view camera through installing a monitor on the dashboard, you can get the idea of where you are going.
This can be rather advantageous for some reasons especially when you drive a large car like a truck, van or an SUV from which it can be challenging to view what is behind you. And you can use your rear view mirror or turn your head, but at times it is actually not adequate. For instance, there could be an object or even a kid behind you that you are not capable of seeing with traditional techniques.
Utilizing a car rear view camera system will let you see when you are reversing your automobile so that you can do so in a secure way without need to worry about hitting something. While these equipments can be normally seen on luxury brand automobiles, you can easily acquire them for nearly any car. They are much less inexpensive than you think so that you can obtain many desired products by shopping online.
When selecting a car rear view system to acquire, always be sure to select from a trusted brand so you know you will be finding a quality item. Even though there are numerous generic brand names available, just bear in mind that you receive what you pay for. You would possibly need to select those equipments that include a parking sensor that can alert you if you're coming too close to an object.
That is incredibly valuable for all those tight spaces as the last thing you would want is usually an object or even another auto. Doing so can really improve your month-to-month insurance premium so working with these devices is unquestionably an excellent idea as they are extremely affordable. Another factor to think about is how they set up while you probably desire a wireless unit as they are much easier to install.
For more convenience, you can use those wireless units to transfer them between vehicles. Because most people are always not careful when backing up their cars, a lot of accidents happen in the parking lots. Under the help of a car rear view camera system, such accidents would reduce rapidly with less purchase cost.
This can be rather advantageous for some reasons especially when you drive a large car like a truck, van or an SUV from which it can be challenging to view what is behind you. And you can use your rear view mirror or turn your head, but at times it is actually not adequate. For instance, there could be an object or even a kid behind you that you are not capable of seeing with traditional techniques.
Utilizing a car rear view camera system will let you see when you are reversing your automobile so that you can do so in a secure way without need to worry about hitting something. While these equipments can be normally seen on luxury brand automobiles, you can easily acquire them for nearly any car. They are much less inexpensive than you think so that you can obtain many desired products by shopping online.
When selecting a car rear view system to acquire, always be sure to select from a trusted brand so you know you will be finding a quality item. Even though there are numerous generic brand names available, just bear in mind that you receive what you pay for. You would possibly need to select those equipments that include a parking sensor that can alert you if you're coming too close to an object.
That is incredibly valuable for all those tight spaces as the last thing you would want is usually an object or even another auto. Doing so can really improve your month-to-month insurance premium so working with these devices is unquestionably an excellent idea as they are extremely affordable. Another factor to think about is how they set up while you probably desire a wireless unit as they are much easier to install.
For more convenience, you can use those wireless units to transfer them between vehicles. Because most people are always not careful when backing up their cars, a lot of accidents happen in the parking lots. Under the help of a car rear view camera system, such accidents would reduce rapidly with less purchase cost.
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