“ exceeds ability ”LIDAR to have let drive automatically car (or it is any robots) a few when survey this world special “ exceed capacity”:

 

360 ° is all-around do not have blind angle can inspect ability —— to imagine one servent eye can observe momently all direction

 

Extremely accurate deepness information —— imagines you always can know the accurate distance with the object (precision±2 Cm)

 

If had seen before you,drive automatically car, you had contacted the likelihood LIDAR. Of the Uber in the graph below no less than and Baidu drive automatically car, it is the cumbersome box that installation rotates in car coping ceaselessly.

 

 

At present the most welcome LIDAR sensor on the market is the high power Velodyne HDL-64E of coping of the Homer in next graphs.

 

 

How is the working principle sensor of LIDAR to accomplish 360 degrees of deepness information that do not have blind angle and high accuracy to capture?

 

Say simply: LIDAR sensor launchs laser to pass ceaselessly feeling bundle, return the time range finding to sensor according to beam of light next.

 

 

Send millions light beam through every second, what LIDAR sensor can realize 3D world truly is visible. Can conclude piece with all round the exact measured value of any objects (most about 60 meters, depend on uses sensor)

 

 

Of Homer drive space

 

Of LIDAR brief history support to understand the technology of contemporary LIDAR backside further, the similar technology that with a view to has same cause is very vital.

 

Sonar

 

Original deepness induction ancestor is batty (the history that has 50 million years) . Batty (or it is dolphin, …… of and so on) can use echo fixed position like LIDAR, another calls sonar (sound navigation and range finding) . What differ with LIDAR laser range finding is, sonar uses sound wave to undertake range finding.

 

Passed biology evolution of 50 million years, as the arrival of submarine battle, the the First World War quickened the large-scale deploy of man-made sonar sensor. The effect that Sonar works in water is very outstanding, the transmission rate that because sound wave is in water,compares light and radio wave is rapidder (the transmission that those who point to is every second is apart from) . The Sonar sensor application on contemporary car frequency is very tall, basically be in order to jockey the form of sensor. Stone’s throw sensor (——5m) the space that provided cheap way to inform rear wall and car. Sonar can have not been being driven automatically by the proof the job inside the limits that the car asks (60 M+ )

 

 

Below this kind of circumstance, the dispatcher that bat is signal of echo fixed position and the person that accept.

 

Radar

 

Radar (radio navigation and range finding) , with Sonar unusual appearance resembles, it is another technology that rises in the development when the Second World War. What differ with use laser or sound wave is, it uses radio wave to come range finding. On Homer use Delphi sensor uses many radar, it is a kind of long-tested method, can detect accurately and dog farthermost distance 200 meters object.

 

From defect this respect looks, the weakness of radar is very little. Its performance below extreme weather is superior and price is very substantial. Radar detects in the object not only respect application is wide, the application that and trailing a field also has a lot of (namely: The speed that understands car travel and direction) . Radar can not offer the size of LIDAR certainly, but radar is free, LIDAR is not.

 

In the radar that installs on Homer

 

Lidar technology

 

Lidar technology is born at 20 centuries 60 time, come out in laser before long. 1971 Apollo during 15 tasks, astronaut measures scale with it moon face, let people first time see what lidar can do.

 

Kelaimenting

 

Mix at the car in lidar application drive automatically before using, lidar applies at normally archaeological. And lidar is in scale ground domain having huge help, in archaeological and move and its important place are had in agriculture.

 

The lidar map that captures in a kind of sky

 

“ applies at Angamuco first when lidar technology, the section volume that we reach from observation, in light of building and structure, cannot reach this is the conclusion of a city even. Professor Shidifulaisi tells group member (BBC) BBC. More surprising is, although the city is ulterly changed, but still team used it to discover a field of central america match that the name is Pok-ta-pok here, in the match Feixier still is in from goal 10 meters of far places had entered ball “ this is too surprising really ” Lai this say. – lidar help is archaeological can explore the place with unbeknown more.

 

50 application of lidar technology are becoming more and more popular in the domain that at the same time lidar technology is in a lot of differring.

 

Till 21 centuries first, lidar technology just is used at the car first, and be in 2005, stanley (and the Junior later) ability applied to make its popularity rises in Grand DARPA challenge.

 

 

The lidar sensor that what in this match Zun Tu’s Stanley uses is SICK, and the sensor that what the Junior of right graph uses is Velodyne.

 

Stanley was 2005 the champion of Grand DARPA challenge, besides equipment GPS of class of for military use, gyroscope, accelerometer and a visibility of 80 meters of above photograph outside resembling a head, additional still explicit housetop installed sensor of 5 SICK lidar. All these are place the 1.6GHz at mothball box by 6 gallop of drive of place of Lunix system computer.

 

Technology of lidar of this use SICK (was 2005 very big the challenge car of one part provides power) as a result of every time laser scanning basically is the cut that has by individual plane, because this must direct them in order to every player. A lot of taking part in the match the team is in their installation tilt on the stage, such their OK and successful “ had swept ” a paragraph of space. Simple for: The contemporary 3D lidar technique that knows today with us (the beam of light of much direction) photograph comparing, SICK is a 2D lidar (a few beam of light on single way) .

 

 

The market leader of lidar is all the time since Velodyne is long-term, but they are not satisfied at the current situation. Velodyne began to pursue the life of frequency company 1983, exceed the sensor with bass loudhailer specific equipment, use DSP and algorithm of custom-built DSP control. In order to implement effect of low frequency sound and technology of effect of sound of bass artillery piece. Come on stage first in Stanley while, velodyne becomes the lidar company that we tell today at the same time. The virgin National People’s Congress of Velodyne is defended and Bruce suddenly Er attended first 2004 DARPA match, established DAD (digital frequency driver) group. The 2nd match is medium 2005, big Wei Huoer invented the real time system that is based on 3D laser to file patent, this laid a foundation for the lidar product with current Velodyne. The 3rd times 2007 DARPA is challenged in, what the perceptive system of most group uses is this technology. In defending the invention of · Huo Er to learn in Shimisen now greatly, be considered as to realize the essential sex that drives automatically to break through.

 

 

The DAD team 2005

 

The diameter of scanner of lidar of the first Velodyne is team of the DAD when 2005 about 30 inches, weight is close to 100 pounds. Accordingly their group option commercializes lidar scanner and not be to continue to use it to play the game.

 

Velodyne company improves a technology ceaselessly, the performance that it improves while the dimension of sensor and weight are reduced. The HDL-64E lidar sensor of Velodyne was 2007 the main measure that the relief map compose of group of challenge of city of all and top class DARPA is built and fraise detects, 6 groups that complete this challenge have 5 are using this sensor, include triumph and the 2nd group among them. A few groups rely on lidar completely to get use at driving automatic through imitate city environment the information of the environment of car. – Vicki 100 divisions

 

 

LIDAR (lidar technology) driving automatically the action in the car why can be LIDAR used drive automatically does the car become a possibility? In short: Scale map. LIDAR can make giant 3D map (this is its earliest application! ) you are OK the navigation of car of in order to or robot. Be measured through using LIDAR to undertake draw to the environment all round and navigation, the outline that you can know a driveway ahead of schedule, stopping a mark is even in front 500 meters traffic light. This kind can forecast a gender to realize what such technical place needs the car to drive automatically just about, and be the main reason that the past obtains progress 5 years.

 

Object identifying

 

What apply as LIDAR is more extensive and the capacity that has taller resolution object, a new example appeared in identify in the object and be being tracked. The map of LIDAR scale can make you accurate understand his to help you undertake navigation then in the which position of the world not only. OK still identifying and dog car, the pedestrian waits for fraise, e.g. the rugger helmet of Waymo.

 

Contemporary LIDAR makes you can identify a person that ride a bicycle and a walking person, can measure their haul and the speed that advance even.

 

Car of song of a cereal

 

Navigation of exclamatory making a person, mysterious can forecast gender, height of analytic object dog to be united in wedlock meaning LIDAR is dominant drives automatically now the key of the car, and see this kind of dominant can lay change very hard. Unless …

 

Of visual sensor dominant drive automatically car

 

There are a lot of poineering companies over there and did not use lidar sensor, use visual sensor only (perhaps be radar) will solve drive automatically the problem of the car. Tesla is among them the company of the most influential force, ma Sike of their CEO dust grand offers such think of a way: If the mankind can use an eye only, ear and cerebra come perception and navigation this world, why cannot be that used in drive automatically on the car? I believe firmly this kind of method will fetch spectacular gain, especially already a lot of preeminent groups are trying hard to achieve this one goal now, have Comma and AutoX among them.

 

Tesla states they had decided dimensions to turn production. Prospective tesla hopes can produce 500 thousand car every year very quickly, and they already needed no longer await lidar depreciate.

 

Ailongmasike says, gu Ge drives automatically in its the lidar ”” that uses in the car is in the car no point ……

 

Several days ago, ma Sike of tesla CEO dust grand holds a press conference, introduced to drive automatically functional …

 

The ascensive focusing of the prospective industry of LIDAR at falling cost is mixed the promotion of resolution, limits.

 

Reduce cost

 

Hopeful of solid state LIDAR offers the LIDAR unit under 1000 dollars, the LIDAR that compares the 80000 dollars unit price at instantly has appeal extremely. LeddarTech is this inchoate market get army one of companies.

 

Velodyne is as follows to view of solid state LIDAR:

 

Solid state and fixed sensor is to stem from smaller size and as far as possible the can embed sensor of low cost and of the consideration. This also is meant inspect region smaller also. Velodyne support is mixed fixedly gyral sensor. Fixed sensor needs miniaturization so to can embed. From the angle consideration of cost, both includes camera lens, laser and detect device. Lowermost cost gets a system is actually inspect region to come through rotating answer mix with camera lens, laser detect device, is not to use additional and alone include camera lens, laser and detect the sensor of device. Answer with not only more substantial and economy is more practical, because because real time confluence is different,can be reduced so perspective data and brought error, this is quite crucial when car moves in real time.

 

Precision and limits promote

 

Of LIDAR application setting jump the author that attracted one big bill to sparkle and group are devoted among them. Higher resolution and farther monitoring area per fire detector (for example 200 meters) the function that the object is explored and dogs promotion, and be like Lumina the key of the sensor product of such newly established company is distinguished one of.