SYSTEMS AND METHODS FOR SURVEILLANCE-ASSISTED PATROL

• US 20190156640A1
• Filed: 11/17/2017
• Published: 05/23/2019
• Est. Priority Date: 11/17/2017
• Status: Active Grant

• Current Assignee: Motorola Solutions, Inc.
• Original Assignee: Motorola Solutions, Inc.
• Inventors: Cutcher, Jeffrey L., Cronin, Daniel L., Singh, Rajesh Baliram, Hernandez, Rolando
• Granted Patent: US 10,388,132 B2
• Time in Patent Office: Days
• CPC Class Codes: G08B 13/194 using image scanning and comparing systems
• CPC Class Codes: G08B 13/196 using television cameras
• CPC Class Codes: G08B 13/19602 Image analysis to detect motion of the intruder, e.g. by frame subtraction
• CPC Class Codes: G08B 13/19608 Tracking movement of a target, e.g. by detecting an object predefined as a target, using target direction and or velocity to predict its new position
• CPC Class Codes: G08B 13/19613 Recognition of a predetermined image pattern or behaviour pattern indicating theft or intrusion
• CPC Class Codes: G08B 13/19673 Addition of time stamp, i.e. time metadata, to video stream
• CPC Class Codes: G08B 13/19684 Portable terminal, e.g. mobile phone, used for viewing video remotely
• CPC Class Codes: G08B 21/0415 detecting absence of activity per se
• CPC Class Codes: G08B 21/0423 detecting deviation from an expected pattern of behaviour or schedule
• CPC Class Codes: G08B 21/22 responsive to presence or absence of persons

Abstract

Systems and methods for surveillance-assisted patrol. One system includes an image capture device associated with a location, a patrol object, and a server communicatively coupled to the image capture device and the patrol object. The server includes an electronic processor configured to receive geolocation data for the patrol object. The electronic processor determines, based on the data, whether the patrol object is within a predetermined distance from the location, and, in response to determining that the patrol object is within the predetermined distance, captures a reference image of the location via the image capture device. The electronic processor accesses a second image corresponding to the location, captured at a different time than the reference image. The electronic processor compares the reference image to the second image to determine a difference. The electronic processor, in response to determining the difference, transmits, via the transceiver, a patrol alert to an electronic device.

Claims

1. A surveillance-assisted patrol system, the system comprising:

an image capture device having a field-of-view associated with a location;

a patrol object;

a server communicatively coupled to the image capture device and the patrol object, the server including a transceiver and an electronic processor configured to

receive geolocation data for the patrol object;

determine, based on the geolocation data, whether the patrol object is within a predetermined distance from the location; and

in response to determining that the patrol object is within the predetermined distance from the location,

(a) capture a reference image of the location via the image capture device,

(b) access a second image corresponding to the location, the second image captured via the image capture device at a different time than the reference image,

(c) compare the reference image to the second image to determine a difference between the reference image and the second image, and

(d) in response to determining the difference, transmit, via the transceiver, a patrol alert to an electronic device.

2. The system of claim 1, wherein the electronic processor is further configured to, in response to determining that the patrol object is within the predetermined distance from the location,

establish a patrol alert timer;

and

repeat steps (b)-(d) while the patrol alert timer has not expired.

3. The system of claim 1, wherein the electronic processor is further configured to determine whether the patrol object is within the predetermined distance from the location by determining whether the patrol object is entering or has entered the location based on the geolocation data.

4. The system of claim 1, wherein the electronic processor is further configured to access a second image corresponding to the location by

determining that the patrol object is no longer within a predetermined distance from the location based on the geolocation data;

and

in response to determining that the patrol object is no longer within a predetermined distance from the location, capturing the second image of the location via the image capture device.

5. The system of claim 1, wherein the electronic processor is further configured to access a second image corresponding to the location by

generating a plurality of images by periodically capturing an image of the location via the image capture device, each of the plurality of images including a timestamp;

and

selecting one of the plurality of images as the second image based on the timestamp of each of the plurality of images.

6. The system of claim 1, wherein the electronic processor is further configured to determine a difference between the second image and the reference image by

detecting a first plurality of objects in the reference image;

detecting a second plurality of objects in the second image; and

comparing the first plurality of objects to the second plurality of objects.

7. The system of claim 1, wherein the reference image is one selected from a group consisting of a visible spectrum image, an infrared image, and a thermal image.

8. The system of claim 1, wherein the second image is one selected from a group consisting of a visible spectrum image, an infrared image, and a thermal image.

9. The system of claim 1, wherein the patrol object is one selected from a group consisting of a portable two-way radio, a smart telephone, and a police vehicle.

10. The system of claim 1, wherein the electronic processor is configured to transmit the patrol alert to the electronic device by transmitting the patrol alert to the patrol object.

11. A method for surveillance-assisted patrol, the method comprising:

receiving, with an electronic processor, geolocation data for a patrol object;

determining, with the electronic processor, based on the geolocation data, whether the patrol object is within a predetermined distance from a location; and

in response to determining that the patrol object is within the predetermined distance from the location,

(a) capturing a reference image of the location via an image capture device,

(b) accessing a second image corresponding to the location, the second image captured at a different time than the reference image,

(c) comparing the reference image to the second image to determine a difference between the reference image and the second image, and

(d) in response to determining the difference, transmitting, via a transceiver, a patrol alert to an electronic device.

12. The method of claim 11, further comprising:

in response to determining that the patrol object is within the predetermined distance from the location,

establishing a patrol alert timer; and

repeating steps (b)-(d) while the patrol alert timer has not expired.

13. The method of claim 11, wherein determining whether the patrol object is within a predetermined distance from the location includes determining whether the patrol object is entering or has entered a field-of-view of the image capture device based on the geolocation data.

14. The method of claim 11, wherein accessing a second image corresponding to the location includes

determining whether the patrol object is no longer within a predetermined distance from the location based on the geolocation data;

and

in response to determining that the patrol object is no longer within a predetermined distance from the location,

capturing the second image of the location via the image capture device.

15. The method of claim 11, wherein accessing a second image corresponding to the location includes

generating a plurality of images by periodically capturing an image of the location via image capture device, each of the plurality of images including a timestamp, and

wherein accessing the second image includes selecting one of the plurality of images as the second image based on the timestamp of each of the plurality of images.

16. The method of claim 11, wherein determining a difference between the second image and the reference image includes

detecting a first plurality of objects in the reference image;

detecting a second plurality of objects in the second image; and

comparing the first plurality of objects to the second plurality of objects.

17. The method of claim 11, wherein capturing the reference image of the location includes capturing one selected from a group consisting of a visible spectrum image, an infrared image, and a thermal image.

18. The method of claim 11, wherein accessing the second image of the location includes accessing one selected from a group consisting of a visible spectrum image, an infrared image, and a thermal image.

19. The method of claim 11, wherein receiving the geolocation data for the patrol object includes receiving the geolocation data from one selected from a group consisting of a portable two-way radio, a smart telephone, and a police vehicle.

20. The method of claim 11, wherein transmitting the patrol alert to the electronic device includes transmitting the patrol alert to the patrol object.