{"id":219,"date":"2017-11-26T19:07:28","date_gmt":"2017-11-26T13:37:28","guid":{"rendered":"http:\/\/disruptiveenergy.net\/patent-in-india\/?p=219"},"modified":"2019-01-08T18:39:53","modified_gmt":"2019-01-08T13:09:53","slug":"autonomous-driving-distance-sensor","status":"publish","type":"post","link":"https:\/\/disruptiveenergy.net\/patent-in-india\/autonomous-driving-distance-sensor\/","title":{"rendered":"Autonomous Driving – Distance sensor calibration by Samsung"},"content":{"rendered":"

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\"Google<\/a>
Google driver-less car operating on a testing path By:Flckr user jurvetson (Steve Jurvetson) CC2.0<\/figcaption><\/figure>\n

Autonomous Driving or Self Driving<\/strong><\/h2>\n

In the last decade, information communication technology and the vehicle industry came together for better driving experience. Now, day by day, the cars are rapidly becoming smarter than expected. Now, the cars aren\u2019t just mechanical machines, rather they are becoming more smarter to the extent that they can drive themselves. We call it, in particular, autonomous driving. Autonomous driving is being most talked about core technology of smart cars. <\/span><\/p>\n

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In autonomous driving, technology allows a car to drive itself to a destination without a human driver rotating a steering wheel, pressing an accelerator or a brake, or the other controls. This self driving car has one of the most important device to implement such a tricky task, called a distance sensor. The distance sensor outputs various waveforms such as ultrasound waves, laser, etc., and then receives reflected waveforms to control a car by recognizing and determining driving surroundings.<\/span><\/p>\n

A distance sensor is a sensor for obtaining a shape or location of an object. For example, a time-of-flight (TOF) sensor, a structured light sensor, an ultrasound sensor, an infrared light sensor, and a laser sensor such as a light detection and ranging (lidar) sensor. The lidar sensor can be a multibeam lidar sensor, and a microelectromechanical systems (MEMS)\/optical phased arrays (OPA) lidar sensor.<\/span><\/p>\n

Sensor Issue<\/strong><\/h2>\n

For autonomous driving, safety has to be guaranteed. So there is an essential need for accuracy of object information obtained by a distance sensor(e.g a lidar sensor). In some cases, where the distance sensor obtains shape information of an object by using a multiple waveforms, there is a possibility that accurate shape information can\u2019t be obtained because characteristics of the waveforms are different from each other. In addition, due to a change in surroundings, there is a high possibility that an error may occur in the shape information about the object obtained by the distance sensor, and therefore, calibration of the distance sensor is required for accuracy of the distance sensor.<\/span><\/p>\n

\"samsung
Autonomous Car sensor communication for object data Copyright: SAMSUNG ELECTRONICS CO., LTD.<\/figcaption><\/figure>\n

The Distance sensor envisioned by Samsung:<\/strong><\/h2>\n