US 11,940,561 B2
Laser receiving device and LiDAR comprising a plurality of isolation parts for electromagnetic shielding between adjacent sensor groups and between adjacent amplifier groups
Yanmin Li, Shenzhen (CN); Zhen Zhang, Shenzhen (CN); and Shengqiang Pan, Shenzhen (CN)
Assigned to SUTENG INNOVATION TECHNOLOGY CO.,LTD., Shenzhen (CN)
Filed by SUTENG INNOVATION TECHNOLOGY CO., LTD., Shenzhen (CN)
Filed on Dec. 14, 2021, as Appl. No. 17/551,012.
Application 17/551,012 is a continuation in part of application No. PCT/CN2020/099033, filed on Jun. 29, 2020.
Prior Publication US 2022/0107394 A1, Apr. 7, 2022
Int. Cl. G01S 7/48 (2006.01); G01S 7/481 (2006.01)
CPC G01S 7/4816 (2013.01) [G01S 7/4813 (2013.01); G01S 7/4817 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A laser receiving device, comprising:
a photoelectric sensing assembly, comprising m receiving sensor plates and n sensor groups, wherein the n sensor groups are arranged on the m receiving sensor plates, when two adjacent sensor groups are arranged on the same receiving sensor plate, a first isolation part for electromagnetic shielding is arranged between the two adjacent sensor groups, wherein m is an integer greater than 1, n is an integer greater than 1, and m≤n;
an amplifying assembly, comprising k receiving amplifier plates and n amplifier groups, wherein the n amplifier groups are arranged on the k receiving amplifier plates, when two adjacent amplifier groups are arranged on the same receiving amplifier plate, a second isolation part for electromagnetic shielding is provided between the two adjacent amplifier groups, and the n amplifier groups and the n sensor groups are connected in a one-to-one manner, wherein k is an integer greater than 1, and k≤n;
a collecting assembly, comprising a collecting plate and n collecting units, wherein the n collecting units are arranged on the collecting plate, and the n collecting units and the n amplifier groups are connected in a one-to-one manner;
n power supply units, configured to supply power to the photoelectric sensing assembly and the amplifying assembly, wherein the n power supply units are connected to the n amplifier groups in a one-to-one manner, the n power supply units are connected to the n sensor groups in a one-to-one manner, and the photoelectric sensing assembly and the amplifying assembly are grounded via a same ground plane; and
n signal receiving channels in parallel, wherein each signal receiving channel corresponds to one amplifier group, one sensor group, one collecting unit, and one power supply unit, wherein the one power supply unit, the one sensor group, the one amplifier group, and the one collecting unit operate serially in groups and are parallel among groups,
wherein the sensors and the amplifiers in a group share the power supply unit, the collecting unit, and the ground plane; and
the one power supply unit, the one sensor group, and the one amplifier group are grounded on the one collecting unit to form a closed current loop corresponding to each signal receiving channel.