MULTIDIRECTIONAL TRAFFIC IMAGE CAPTURING METHOD AND ELECTRONIC POLICE SYSTEM

• US 20090115848A1
• Filed: 12/25/2007
• Published: 05/07/2009
• Est. Priority Date: 11/07/2007
• Status: Abandoned Application

• Current Assignee: Aochengtongli S&T Development ( Beijing ) Co., Ltd.
• Original Assignee: Aochengtongli S&T Development ( Beijing ) Co., Ltd.
• Inventors: LIANG, Zhilong
• Application Number:
  US11/964,021
• Publication Number:
  US 20090115848A1
• Time in Patent Office: Days
• US Class Current: 348/149
• CPC Class Codes: G08G 1/04 using optical or ultrasonic detectors
• CPC Class Codes: G08G 1/054 photographing overspeeding vehicles

Abstract

This invention relates to a multidirectional traffic image capturing method and an electronic police system. This method adopts forward direction camera and side direction camera to capture images of the traffic condition and can obtain qualified images through regularly adjusting the direction of side direction camera with main control unit. This system is made up of main control unit, forward control unit, forward camera, and side control unit and side camera. The main control unit will analyze, judge if there is a disobeying of traffic lights through lights signal and traffic condition, meanwhile control forward direction camera and side direction camera to capture images. This invention adopts multidirectional image capturing method to obtain the images of violated vehicles, which overcomes the long standing issue of red light glaring, guarantees the quality of the images and is mainly used in the supervision and management of the traffic.

Claims

1. A method for capturing multidirectional traffic image, said method employing forward direction cameras and side direction cameras to capture multidirectional images of the traffic condition.

2. The method of claim 1, wherein there is angle control device to adjust the turning of side cameras. The control device can receive commands from the main control unit to turn the side camera. The main control unit can regularly adjust the side camera for auto control image capturing and judge the quality of the image. When the quality fails to meet the requirement, the main control unit will give command to turn the direction of the side camera until qualified images are obtained or the camera is adjusted to the best angle of that moment.

7. The system of claim 2, wherein said system comprising one or more camera operating mode switching control system, which sends the best operating mode to the corresponding forward or side camera.

8. The system of claim 7, wherein the camera operating mode switching control system includes sensing unit and mode switching control unit;

the sensing unit includes data collecting module and several environmental condition sensors;

the environmental condition sensors collect real-time information and send them to the data collecting module, which will process those information and generate stable preprocessing environmental condition data;

there are CPU (central processing unit) in the mode switching control unit and the CPU will analyze and operate those preprocessing environmental condition data under designed method to obtain the due operating parameters under such environmental condition, generate control command for the camera operation mode and send them to the forward or side camera.

9. The system of claim 8, wherein said environmental condition sensor contains at least one optical sensor, which collects optical intensity sensing information.

10. The system of claim 9, wherein there is a communication processing module for counter communication between the data collecting module and the CPU;

the communication processing module is made up of dual parallel port RAM;

the CPU and the camera adopt RS485 communication protocol;

the communication processing module of the CPU inputs the control command to the ball head tripod and obtains all the present operating parameters of the camera and shooting distances.

3. An electronic police system for capturing multidirectional traffic image, said system comprising at least one forward direction camera and one side direction camera.

4. The system of claim 3, wherein said system comprising a main control unit, a forward direction control unit and a side direction control unit. The main control unit will analyze and judge if there is a disobeying of traffic lights through lights signal and traffic condition. If there is any traffic light disobeying, it will input related data to the forward control unit and side control unit, who will generate camera capturing data and send to their own forward and side cameras.

5. The system of claim 4, wherein said main control unit comprising a red light detector, a video controller and a main communication interface (CI) with supervision camera and/or vehicle detector. The forward control unit and the side control unit are mainly made up of main CI, video controller and camera CI. The red light detector will carry out real-time inspection over the red light at present crossing and will send the signal to the main video controller of the main control unit;

the supervision camera and/or vehicle detector acquire the real-time traffic information and will send the signal to the main video controller of the main control unit;

the main video controller will process the received red light and traffic information after statistic collecting and then carry out logical calculation;

once the traffic light disobeying is confirmed, the related information will be immediately sent to the forward video controller of the forward control unit by the main CI as well the side video controller of the side control unit;

the best shooting time and the best angle will be calculated according to the best ratio;

this data will be sent to the camera through camera CI and the camera will capture images and/or video according to the data.

6. The system of claim 5, wherein said main video controller adopts high performance embedded ARM7 chips;

the signals given out by the sensor of the red light detector are digital electrical signals;

the signals given out by the sensor of the vehicle detector are also electrical signals;

the red light data and the traffic data received by the ARM7 chips of the main video controller will be sampled many times and carried out logical judgment under the principle of picking 3 from 4;

if the vehicle is still running or has passed the restriction line when the forward direction is red light, this is determined as a disobeying, which will be recorded and sent to the forward video controller and the side video controller through the main CI;

after receiving the related information, according to the best ratio data or function for the shooting angle, shooting position, shooting time and environmental condition inside, the best shooting time and the best angle will be determined, which will be sent to the camera;

there are ball head tripod on all the camera.

11. The system of claim 5, wherein said system comprising one or more camera operating mode switching control system, which sends the best operating mode to the corresponding forward or side camera.

12. The system of claim 11, wherein the camera operating mode switching control system includes sensing unit and mode switching control unit;

the sensing unit includes data collecting module and several environmental condition sensors;

the environmental condition sensors collect real-time information and send them to the data collecting module, which will process those information and generate stable preprocessing environmental condition data;

there are CPU (central processing unit) in the mode switching control unit and the CPU will analyze and operate those preprocessing environmental condition data under designed method to obtain the due operating parameters under such environmental condition, generate control command for the camera operation mode and send them to the forward or side camera.

13. The system of claim 12, wherein said environmental condition sensor contains at least one optical sensor, which collects optical intensity sensing information.

14. The system of claim 13, wherein there is a communication processing module for counter communication between the data collecting module and the CPU;

the communication processing module is made up of dual parallel port RAM;

the CPU and the camera adopt RS485 communication protocol;

the communication processing module of the CPU inputs the control command to the ball head tripod and obtains all the present operating parameters of the camera and shooting distances.

15. The system of claim 6, wherein said system comprising one or more camera operating mode switching control system, which sends the best operating mode to the corresponding forward or side camera.

16. The system of claim 15, wherein the camera operating mode switching control system includes sensing unit and mode switching control unit;

the sensing unit includes data collecting module and several environmental condition sensors;

the environmental condition sensors collect real-time information and send them to the data collecting module, which will process those information and generate stable preprocessing environmental condition data;

there are CPU (central processing unit) in the mode switching control unit and the CPU will analyze and operate those preprocessing environmental condition data under designed method to obtain the due operating parameters under such environmental condition, generate control command for the camera operation mode and send them to the forward or side camera.

17. The system of claim 16, wherein said environmental condition sensor contains at least one optical sensor, which collects optical intensity sensing information.

18. The system of claim 17, wherein there is a communication processing module for counter communication between the data collecting module and the CPU;

the communication processing module is made up of dual parallel port RAM;

the CPU and the camera adopt RS485 communication protocol;

the communication processing module of the CPU inputs the control command to the ball head tripod and obtains all the present operating parameters of the camera and shooting distances.