Understand the key technology of AGV -- the difference between laser slam and visual slam

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Mobile robots (AGV) It's a kind of industrial robot . It is controlled by a computer , With move 、 Automatic pilot 、 Multi sensor control 、 Network interaction and other functions , The most important use in actual production is carrying , It can be said that as long as there is a need for transportation , It's possible to use mobile robots .

In recent years , Mobile robot technology has developed rapidly all over the world . People are committed to applying mobile robots to various scenes , Carry robots indoors and outdoors , To service robot , Then to industrial robots , The application of mobile robots has made great breakthroughs .

One of the key technologies in mobile robot research is real-time location and mapping , It's called SLAM technology .SLAM It tries to solve such a problem ： A robot moving in an unknown environment , How to determine its own trajectory by observing the environment , At the same time, build a map of the environment .

SLAM Technology is the sum of many technologies involved in achieving this goal . Because of its important theoretical and practical value , It is considered by many scholars that it is the key to realize truly autonomous mobile robot .

Distinguish according to the core functional modules , Currently common mobile robots SLAM The system generally has two forms ： Based on lidar SLAM( laser SLAM) And vision based SLAM(Visual SLAM or VSLAM).

So laser SLAM And vision SLAM What's the difference ？ You can see it at a glance by looking at the table below ~

laser SLAM And vision SLAM Compare

By contrast, we find that , laser SLAM And vision SLAM Each is good at winning . Compare the two , laser SLAM The constructed map has high accuracy , There is no cumulative error , And it can be directly used for positioning and navigation .

Of course , laser SLAM There are some limitations . For example, in the long and straight 、 On both sides are long corridors of walls or in an environment with large dynamic changes , Rely solely on lasers SLAM It is easy to lose location .

Actually , To make mobile robots cope with various complex use scenarios , laser SLAM And vision SLAM It will develop in mutual competition and integration , Multisensor fusion navigation is bound to be the future development direction . With the solution of the core technology of mobile robot , Will replace manual completion simple 、 repeat 、 A heavy workload , To really serve humanity .

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 Welcome to join the official account reader group to communicate with your colleagues , There are SLAM、 3 d visual 、 sensor 、 Autopilot 、 Computational photography 、 testing 、 Division 、 distinguish 、 Medical imaging 、GAN、 Wechat groups such as algorithm competition （ It will be subdivided gradually in the future ）, Please scan the following micro signal clustering , remarks ：” nickname + School / company + Research direction “, for example ：” Zhang San  +  Shanghai Jiaotong University  +  Vision SLAM“. Please note... According to the format , Otherwise, it will not pass . After successful addition, they will be invited to relevant wechat groups according to the research direction . Please do not send ads in the group , Or you'll be invited out , Thanks for your understanding ~