Portable and persistent vehicle surveillance system

• US 9,064,406 B1
• Filed: 09/28/2010
• Issued: 06/23/2015
• Est. Priority Date: 09/28/2010
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Bernier, Kenneth Leonard, Stevens, Patricia W., Grabczewski, Karol, Ruggieri, Neil F., Becnel, Robert G., Russek, Joe B.
• Primary Examiner(s): Kelley, Christopher S
• Assistant Examiner(s): BEASLEY, DEIRDRE L
• Application Number:
  US12/892,040
• Time in Patent Office: 1,729 Days
• Field of Search: 348/148
• US Class Current: 1/1
• CPC Class Codes: G08G 1/00 Traffic control systems for road vehicles arrangement of road signs or traffic signals E01F9/00 ; automatic vehicle control B62D
• CPC Class Codes: G08G 1/0175 by photographing vehicles, e.g. when violating traffic rules
• CPC Class Codes: G08G 1/065 by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count

Abstract

A method and apparatus for monitoring vehicles. The vehicles are monitored using a sensor unit. The sensor unit comprises a housing, a camera system, a wireless communications system, and a controller associated with the housing. The camera system has a field of view and is configured to generate images. The wireless communications system is configured to transmit wireless signals. The controller is configured to detect a number of vehicles in the images, generate information for the number of vehicles, and send the information in the wireless signals. The information for the number of vehicles is sent to a remote location.

Claims

1. An apparatus for obtaining an image of a vehicle comprising:

a housing that is portable;

a camera system associated with the housing and comprising a license plate reader camera and a color scene capture camera, the color scene capture camera having a first field of view about four times a size of a second field of view of the license plate reader camera, and configured to generate images;

a light source associated with the housing and configured to generate a light beam that is substantially collimated, the light source comprising a laser unit and the light beam comprising a laser, the light source and laser beam configured to illuminate the vehicle such that the camera system may generate an image of a license plate of the vehicle at a distance up to and including 200 meters away from the light source;

a lens system associated with the light source and configured to cause the light beam to diverge with an angle that covers the field of view for the camera system;

a wireless communications system associated with the housing and configured to transmit wireless signals;

a controller associated with the housing and configured to detect a number of vehicles in the images, generate information for the number of vehicles, and send the information in the wireless signals transmitted by the wireless communications system; and

a power source associated with the housing configured to provide power to the camera system, the light source, the wireless communications system, and the controller, and wherein the camera system, light source, lens system, wireless communication system, power source, and controller are physically connected to the housing;

a first timestamp associated with a set of data from which the license plate number was identified; and

a second timestamp associated with a particular image in which the license plate number was identified;

wherein the first timestamp and the second timestamp are associated with each other to form an association between the license plate number and the particular image in which the license plate number was identified.

2. The apparatus of claim 1 further comprising:

a range extension system configured to receive the wireless signals from the wireless communications system, amplify the wireless signals received from the wireless communications system, and transmit the wireless signals that have been amplified.

3. The apparatus of claim 1 further comprising:

a computer system in a remote location to a location of the housing, wherein the computer system is configured to receive the information in the wireless signals transmitted by the wireless communications system.

4. The apparatus of claim 1, further comprising:

an optics system that adjusts pointing angles and zooming of the license plate reader camera and the color scene capture camera, wherein the license plate reader camera may be pointed at angles that are oblique relative to license plates detected in the images generated by license plate reader camera;

wherein the controller is configured to identify license plate numbers for the number of vehicles in generating the information and to transform shapes of the license plates in the images to rectangular shapes; and

wherein the housing is configured for placement of the housing on a power line.

5. The apparatus of claim 4, wherein the information including the license plate numbers for the number of vehicles is sent in the wireless signals as the information is generated without any delay other than a delay for the time needed to place license plate numbers in packets for transmission in the wireless signals, and the time needed to place the packets in buffers until the packets can be transmitted.

6. The apparatus of claim 5, the controller is configured to place an image from the images in the information periodically.

7. The apparatus of claim 3, wherein the housing, the camera system, the light source, the lens system, the controller, the wireless communications system, and the power source form a sensor unit positioned within the housing, and wherein the computer system is further configured to identify a particular vehicle of interest in the information received from the sensor unit, send a request to the sensor unit for a number of images for the particular vehicle of interest, and receive the number of images for the particular vehicle of interest from the sensor unit.

8. The apparatus of claim 1, wherein the number of vehicles is selected from one of a number of vehicles detected in the images and a number of vehicles detected in the images that have license plate numbers that match a group of license plates numbers.

9. The apparatus of claim 1, wherein the power source is selected from at least one of a fuel cell, a battery, an energy harvesting device, a thermoelectric generator, a micro wind turbine system, and a solar cell system.

10. The apparatus of claim 1, wherein the light beam has a wavelength selected from one of about 380 nanometers to about 780 nanometers and from about 0.7 micrometers to about 300 micrometers.

19. The apparatus of claim 1, wherein the light source is configured such that the camera system generates images for the number of vehicles up to about 200 meters.

24. The apparatus of claim 1 further comprising a pan tilt optics system associated with the camera system and the lighting system, the pan tilt optics system configured to provide panning, tilting, and zoom capabilities for the camera system so as to read license plate information.

25. The apparatus of claim 24, wherein the camera system has a field of view configured such that an image generated is a monochromatic image and contains at least about 150 pixels across a width of a license plate.

11. An apparatus configured to monitor remotely vehicles in traffic, the apparatus comprising:

a housing that is portable;

a camera system associated with the housing and comprising a license plate reader camera and a color scene capture camera, the color scene capture camera having a first field of view about four times a size of a second field of view of the license plate reader camera, and configured to generate images;

an optics system that adjusts pointing angles and zooming of the license plate reader camera and the color scene capture camera, wherein the license plate reader camera may be pointed at angles that are oblique relative to license plates detected in the images generated by license plate reader camera;

a light source associated with the housing and configured to generate a light beam that is substantially collimated, the light source comprising a laser unit and the light beam comprising a laser, the light source and laser configured to illuminate a vehicle such that the camera system may generate an image a license plate of the vehicles at a distance up to and including 200 meters away from the light source;

a wireless communications system associated with the housing and configured to transmit wireless signals;

a controller associated with the housing and configured to detect a number of vehicles in the images, identify license plate numbers for the number of vehicles, send the license plate numbers in the wireless signals sent by the wireless communications system, receive a request for a number of images for a particular vehicle of interest in the number of vehicles from a requestor, and send the number of images for the particular vehicle of interest to the requestor;

a power source associated with the housing configured to provide power to the camera system, the controller, and the wireless communications system, and wherein the camera system, light source, lens system, wireless communication system, power source, and controller are positioned substantially within the housing and are physically connected to the housing;

a first timestamp associated with a set of data from which the license plate number was identified; and

a second timestamp associated with a particular image in which the license plate number was identified;

wherein the first timestamp and the second timestamp are associated with each other to form an association between the license plate number and the particular image in which the license plate number was identified; and

wherein the controller is configured to transform shapes of the license plates in the images to rectangular shapes.

12. The apparatus of claim 11, wherein the license plate numbers for the number of vehicles are sent in the wireless signals as the license plate numbers are identified without any delay other than a delay for the time needed to place license plate numbers in packets for transmission in the wireless signals, and the time needed to place the packets in buffers until the packets can be transmitted.

13. The apparatus of claim 11, wherein the controller is configured to send an image from the images in the wireless signals periodically.

14. The apparatus of claim 11 further comprising:

a lens system associated with the light source and configured to cause the light beam to diverge with an angle that covers a field of view for the camera system.

26. The apparatus of claim 11, wherein the housing is configured for placement of the housing on a power line.

15. A method for monitoring for vehicles, the method comprising:

monitoring for the vehicles using a sensor unit comprising a housing that is portable;

a camera system associated with the housing and comprising a license plate reader camera and a color scene capture camera, the color scene capture camera having a first field of view about four times a size of a second field of view of the license plate reader camera, and configured to generate images;

a light source associated with the housing and configured to generate a light beam that is substantially collimated, the light beam comprising a laser;

a lens system associated with the light source and configured to cause the light beam to diverge with an angle that covers the field of view for the camera system;

an optics system that adjusts pointing angles and zooming of the license plate reader camera and the color scene capture camera, wherein the license plate reader camera may be pointed at angles that are oblique relative to license plates detected in the images generated by license plate reader camera;

a wireless communications system associated with the housing and configured to transmit wireless signals;

a controller associated with the housing and configured to detect a number of vehicles in the images, generate information for the number of vehicles, and send the information in the wireless signals transmitted by the wireless communications system; and

a power source associated with the housing configured to provide power to the camera system, the light source, the controller, and the wireless communications system, and wherein the camera system, light source, lens system, power source, optics system, wireless communication system, and controller are physically connected to the housing and are positioned within the housing, the monitoring with the light source and the laser configured such that the camera system may generate an image of the license plate of vehicles at a distance up to and including 200 meters away from the light source; and

sending the information for the number of vehicles to a remote location;

wherein the controller is configured to transform shapes of the license plates in the images to rectangular shapes;

wherein the controller is further configured to associate a first timestamp with a set of data from which the license plate number was identified and to associate a second timestamp with a particular image in which the license plate number was identified; and

wherein the first timestamp and the second timestamp are associated with each other to form an association between the license plate number and the particular image in which the license plate number was identified.

16. The method of claim 15 further comprising:

generating, by the camera system, the images;

generating, by the controller, the information for the number of vehicles using the images generated by the camera system wherein the controller is configured to identify license plate numbers for the number of vehicles in generating the information and wherein the information including the license plate numbers for the number of vehicles is sent in the wireless signals as the information is generated without any delay other than a delay for the time needed to place license plate numbers in packets for transmission in the wireless signals, and the time needed to place the packets in buffers until the packets can be transmitted; and

transmitting, by the controller, the information generated in the wireless signals to the remote location using the wireless communications system.

17. The method of claim 16, wherein the step of transmitting, by the controller, the information generated in the wireless signals to the remote location using the wireless communications system comprises:

transmitting, by the controller, the information in the wireless signals to a range extension system using the wireless communications system; and

transmitting, by the range extension system, the information in the wireless signals to the remote location.

18. The method of claim 15 further comprising:

receiving the information from the sensor unit;

processing the information received from the sensor unit using a database;

generating a number of requests for additional information; and

sending the number of requests for the additional information to the sensor unit.

20. The method of claim 16, further comprising generating by the camera system the images for the number of vehicles up to and including 200 meters.

21. The method of claim 15 further comprising concealing the housing from vehicles to be monitored.

22. The method of claim 15 further comprising concealing the housing in a tree.

23. The method of claim 15 further comprising concealing the housing in a pole.

27. The method of claim 15, wherein the housing is configured for placement of the housing on a power line.