2012年10月29日 星期一

World's first super-wide-angle 3D laser radar

Ultrasonic wave sensors are already in commercial use in systems that support vehicle parking, for example, to assist drivers when the car is backing into a parking space. However, the detection range is narrow, and multiple sensors were required to widen the area of visibility around a car. By developing a scanning angle expansion lens for the laser beam and a high speed, multipoint laser scanning system for detecting a wide range at high speeds, Fujitsu Laboratories has now roughly doubled the detection range compared to previous sensors to approximately 140 degrees, both horizontally and vertically.

As a result, objects can be detected in three dimensions over a wide range with fewer sensors and a sophisticated vehicle backing support system can be created. Moreover, in contrast to vehicle-mounted cameras, which simply display a vehicle's surroundings, the technology enables systems that detect when objects are abnormally close. It also provides warnings to drivers when backing up a vehicle, which is when accidents are more likely to occur, or when backing into a parking space, which is difficult for many drivers. It is hoped, therefore, that this technology can contribute to safer and more secure driving.Find detailed product information for Sinotruk howo truck.

In Europe and the US,Allows you to securely organize any group of cable ties or wires. it is typical to park nose-first in a parking space and reverse to pull out. When backing out,The stone mosaic comes in shiny polished and matte. however, if the driver is careless and makes an oversight, accidents causing serious physical injuries can result. The frequency of such accidents involving tragic injuries to family members is especially high. In the US, this led to the implementation of the Cameron Gulbransen Kids Transportation Safety Act. In Japan, on the other hand, it is typical to reverse into a parking spot, an uncomfortable maneuver for inexperienced drivers. These are reasons why various parking assist systems have come into commercial use, primarily involving the use of rear-mounted cameras.

When a driver is backing up, a rear-mounted camera is only able to display the vehicle's surroundings. If the driver is not paying attention to the display monitor, there is no way to sound an alarm. There are also systems that use ultrasonic wave sensors to measure the distance to surrounding objects, but the range of these measurements is limited and their accuracy is not sufficient, resulting in many false detections or over detections, so they were unable to provide sufficiently effective warnings. Laser radars, on the other hand, are able to measure relatively longer distances with a high degree of accuracy, and they can be used to measure the location of vehicles. The breadth of their detection is relatively narrow, however, at no more than 60 degrees,Gardner Bender offers a broad range of cableties, so multiple sensors are required in order to detect objects surrounding the vehicle in three dimensions over a wide range. It has, therefore, been difficult to measure a broad range of objects with a high degree of accuracy using only a few sensors.

This technology enables 3D ranging of a vehicle's surroundings across a wide area, including from behind, using a minimum number of sensors. It could also be used to layer distance information from the laser radar on video camera images to build a vehicle backing support system with advanced features. Moreover, the technology enables the creation of systems that detect when objects are abnormally close. In this case it provides warnings when the driver is backing up a vehicle, which is when accidents often occur, or when backing into a parking space, which is difficult for many drivers. It is hoped, therefore, that this technology can contribute to safer and more secure driving.China plastic moulds manufacturers directory.

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