LiDAR and automated driving device
The present disclosure describes a LiDAR and an automated driving device. The LiDAR includes an emission driving system, a laser transceiving system, and a control and signal processing system. The laser transceiving system includes an emission assembly and a receiving assembly. The emission assembly is configured to emit an outgoing laser. The receiving assembly includes an array detector, and the array detector includes a plurality of detection units. The array detector is configured to synchronously and sequentially turn on the detection units to receive an echo laser, and the echo laser is the laser returned after the outgoing laser is reflected by an object in a detection region. The emission driving system is used to drive the emission assembly. The control and signal processing driving is used to control the emission driving system to drive the emission assembly, and used to control the receiving assembly to receive the echo laser.
1 . A LiDAR, comprising an emission driving system, a laser transceiving system, and a control and signal processing system, wherein
the laser transceiving system comprises an emission assembly and a receiving assembly;
the emission assembly is configured to emit an outgoing laser, the outgoing laser scanning to traverse a detection region, wherein the emission assembly comprises a laser emission module comprising a plurality of laser emission units, wherein the laser emission module is an array emitter, the laser emission units are m*n laser emission units of the array emitter, and on-off of the laser emission units is separately controlled;
the receiving assembly comprises an array detector comprising a plurality of detection units, and the array detector is configured to synchronously and sequentially turn on the detection units to receive an echo laser, the echo laser being a laser returned after the outgoing laser is reflected by an object in a detection region, wherein the array detector comprises m*n detection units, and wherein m and n are both integers greater than 1;
the emission driving system is used to drive the emission assembly; and
the control and signal processing system is used to control the emission driving system to drive the emission assembly, and to control the receiving assembly to receive the echo laser,
wherein the array emitter is configured to sequentially turn on a first laser emission unit to emit the outgoing laser, and wherein the first laser emission unit comprises one or more laser emission units;
the array detector is configured to turn on a first detection unit synchronously and sequentially to receive the echo laser, wherein the first detection unit comprises one or more detection units; and
a position of the first detection unit corresponds to a position of the first laser emission unit, and the echo laser received by the first detection unit is the laser returned after the outgoing laser emitted by the first laser emission unit is reflected by the object in the detection region,
wherein the first laser emission units comprise only one laser emission unit, and the first detection units comprise only one detection unit; and the array detector is also configured to turn on one or more of second detection units synchronously and sequentially to receive the echo laser, and the one or more of second detection units are around the first detection unit; or
wherein the first laser emission unit comprises p*q laser emission units, and the first detection unit comprises p*q detection units, and wherein both p and q are integers greater than or equal to 1, and 1≤p≤m or 1≤q≤n,
wherein p is less than m, and q is less than n; and the laser emission module is configured to turn on the laser emission units along a first direction and then an opposite direction of the first direction back and forth, or turn on the laser emission units row by row or column by column along the first direction constantly; or
p is equal to m, and q is less than n; and the laser emission module is configured to turn on the laser emission units in a vertical direction; or
p is less than m, and q is equal to n; and the laser emission module is configured to turn on the laser emission units in a horizontal direction.
2 . The LiDAR according to claim 1 , wherein
the laser emission module is configured to sequentially turn on the laser emission units to emit the outgoing laser, the outgoing laser scanning to traverse all detection regions of the array detector.
3 . The LiDAR according to claim 2 , wherein
the array detector is configured to turn on a selected detection unit, to detect a detection region scanned by the outgoing laser emitted by the laser emission units.
4 . The LiDAR according to claim 3 , wherein
the array emitter is configured to sequentially turn on the laser emission units to emit the outgoing laser, the outgoing laser scanning to traverse all the detection regions of the array detector.