IP Library Granted Patent US 11,145,194
Granted Patent B2
US 11,145,194 · App. 16/523,126 · Granted Oct 12, 2021

Smart roadside unit and method for processing information by smart roadside unit

Inventors: Lei Fang (Beijing, CN); Haisong Wang (Beijing, CN); Xing Hu (Beijing, CN); Sheng Tao (Beijing, CN); Yifeng Shi (Beijing, CN)
Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
G08G1/0116G08G1/017G08G1/04G08G1/07
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Quick Facts
Patent No.
US 11,145,194
App. No.
16/523,126
Granted
Oct 12, 2021
Kind
B2
Abstract

Provided is a smart roadside unit, including a light intensity sensor configured to generate current light intensity information; a high-bright camera assembly configured to capture a high-bright image; a low-bright camera assembly configured to capture a low-bright image; and a controller configured to turn on the high-bright camera assembly to shoot when the current light intensity is greater than a first light intensity threshold, turn on the low-bright camera assembly to shoot when the current light intensity is less than a second light intensity threshold, and extract vehicle information from the high-bright image or the low-bright image, in which the second light intensity threshold is smaller than the first light intensity threshold.

Claims (52)

1. A smart roadside unit, comprising:

a light intensity sensor configured to generate current light intensity information;

a high-bright camera assembly configured to capture a high-bright image;

a low-bright camera assembly configured to capture a low-bright image; and

a controller configured to

turn on the high-bright camera assembly to shoot when the current light intensity is greater than a first light intensity threshold,

turn on the low-bright camera assembly to shoot when the current light intensity is less than a second light intensity threshold, and

extract vehicle information from the high-bright image or the low-bright image, wherein the second light intensity threshold is smaller than the first light intensity threshold.

2. The smart roadside unit according to claim 1 , wherein the high-bright camera assembly and the low-bright camera assembly have a substantially same shooting view.

3. The smart roadside unit according to claim 1 , wherein the controller is further configured to

turn off the low-bright camera assembly when the controller turns on the high-bright camera assembly to shoot, and

turn off the high-bright camera assembly when the controller turns on the low-bright camera assembly to shoot.

4. The smart roadside unit according to claim 1 , further comprising:

a first shielding layer covering at least part of the high-bright camera assembly, and

a second shielding layer covering at least part of the low-bright camera assembly.

5. The smart roadside unit according to claim 4 , wherein the first shielding layer does not cover camera lenses and heat dissipation components of the high-bright camera assembly; and

the second shielding layer does not cover camera lenses and heat dissipation components of the low-bright camera assembly.

6. The smart roadside unit according to claim 1 , further comprising:

a first radar, and

a second radar, wherein a detection distance of the first radar is greater than a detection distance of the second radar.

7. The smart roadside unit according to claim 6 , wherein the first radar is disposed relatively higher than the second radar in a vertical direction.

8. The smart roadside unit according to claim 6 , wherein the first radar and the second radar are both laser radars.

9. The smart roadside unit according to claim 1 , further comprising:

an antenna, wherein a distance between the antenna and the high-bright camera assembly or the low-bright camera assembly is greater than a preset distance.

10. The smart roadside unit according to claim 1 , further comprising:

a traffic light controlled by the controller according to extracted vehicle information.

11. A method for processing information by a smart roadside unit, comprising:

acquiring current light intensity information;

turning on a high-bright camera assembly to shoot and capturing a high-bright image when the current light intensity is greater than a first light intensity threshold, or turning on a low-bright camera assembly to shoot and capturing a low-bright image when the current light intensity is less than a second light intensity threshold; and

extracting vehicle information from the high-bright image or the low-bright image,

wherein the second light intensity threshold is smaller than the first light intensity threshold.

12. The method according to claim 11 , wherein the high-bright camera assembly and the low-bright camera assembly have a substantially same shooting view.

13. The method according to claim 11 , further comprising:

turning off the low-bright camera assembly when the high-bright camera assembly is turned on to shoot, or

turning off the high-bright camera assembly when the low-bright camera assembly is turned on to shoot.

14. The method according to claim 11 , wherein a first shielding layer is provided to cover at least part of the high-bright camera assembly; and

a second shielding layer is provided to cover at least part of the low-bright camera assembly.

15. The method according to claim 14 , wherein the first shielding layer does not cover camera lenses and heat dissipation components of the high-bright camera assembly; and

the second shielding layer does not cover camera lenses and heat dissipation components of the low-bright camera assembly.

16. The method according to claim 11 , further comprising:

acquiring first obstacle information by a first radar, and

acquiring second obstacle information by a second radar, wherein a detection distance of the first radar is greater than a detection distance of the second radar.

17. The method according to claim 16 , further comprising:

sending the obstacle information and captured images to a server or a vehicle via an antenna.

18. The method according to claim 16 , wherein the first radar and the second radar are both laser radars.

19. The method according to claim 11 , further comprising:

controlling a traffic light according to extracted vehicle information.

20. A non-temporary computer-readable storage medium having stored therein computer programs that, when executed by a processor, cause the processor to perform a method for processing information by a smart roadside unit, the method comprising:

acquiring current light intensity information;

turning on a high-bright camera assembly to shoot and capturing a high-bright image when the current light intensity is greater than a first light intensity threshold, or turning on a low-bright camera assembly to shoot and capturing a low-bright image when the current light intensity is less than a second light intensity threshold; and

extracting vehicle information from the high-bright image or the low-bright image,

wherein the second light intensity threshold is smaller than the first light intensity threshold.

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE APPLICANT NAME PREVIOUSLY RECORDED AT REEL: 057933 FRAME: 0812. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Dec 28, 2021
From: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
To: APOLLO INTELLIGENT DRIVING TECHNOLOGY (BEIJING) CO., LTD.
Reel/Frame 058594/0836 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 13, 2021
From: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
To: APOLLO INTELLIGENT DRIVING (BEIJING) TECHNOLOGY CO., LTD.
Reel/Frame 057933/0812 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 26, 2019
From: FANG, LEI; WANG, HAISONG; HU, XING; TAO, SHENG; SHI, YIFENG
To: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
Reel/Frame 049871/0170 →
Priority Claims (1)
CN 201811012975.0 · Aug 31, 2018 · national
Continuity (1)
Related Publication 20200074850A1 · Mar 5, 2020