Method and system for remote wireless video surveillance

• US 7,051,356 B2
• Filed: 02/25/2002
• Issued: 05/23/2006
• Est. Priority Date: 02/25/2002
• Status: Active Grant

• Current Assignee: Bradley A. Weinstein
• Original Assignee: Sentrus, Inc.
• Inventors: Weinstein, Richard D.
• Primary Examiner(s): Philippe, Gims
• Assistant Examiner(s): REKSTAD, ERICK J
• Application Number:
  US10/082,682
• Publication Number:
  US 20030163826A1
• Time in Patent Office: 1,548 Days
• Field of Search: 725/105, 725/73, 348/143, 348/151, 348/211.3, 348/207.1, 348/158, 370/443, 370/316
• US Class Current: 725/105
• CPC Class Codes: G08B 13/19656 Network used to communicate with a camera, e.g. WAN, LAN, Internet
• CPC Class Codes: G08B 13/19667 Details realated to data compression, encryption or encoding, e.g. resolution modes for reducing data volume to lower transmission bandwidth or memory requirements
• CPC Class Codes: G08B 13/19689 Remote control of cameras, e.g. remote orientation or image zooming control for a PTZ camera
• CPC Class Codes: H04N 7/185 from a mobile camera, e.g. for remote control

Abstract

Disclosed are a system and method for providing wireless video surveillance of a remote location using microwave transmission of video data using TCP/IP networking protocol. The system comprises a remote unit having one or more analog cameras, a video encoder/decoder linked to a microwave transceiver using Ethernet transceivers connected by a twisted wire pair. The microwave transmission is received by a base unit comprising another microwave transceiver and Ethernet transceiver linked to a computer. The base unit computer is connected to one or more computer networks to enable transmission of the video data to multiple computer terminals on the network.

Claims

1. A method of providing covert remote wireless video surveillance of a remote location comprising the steps of:

using a fixed covert imaging means to generate analog electrical signals representative of real time images of the remote location;

using a signal compression chip for converting the analog signals to digital electrical signals and packetizing the digital electrical signals into a secure pre-selected IP protocol format;

transmitting the packetized digital electrical signals using a first transceiver;

receiving the packetized digital electrical signals using a second transceiver;

converting the packetized digital electrical signals into a microwave signal and transmitting the microwave signal to a base unit;

receiving the microwave signal at the base unit;

sending the secure, received signal over a computer network to a plurality of user terminals;

converting the secure, received signal to digital video signals using a video player; and

displaying the digital video signals on the plurality of user terminals for simultaneous viewing by more than one user.

2. The method of claim 1 wherein the secure pre-selected IP protocol format comprises a private intranet network.

3. The method of claim 1 wherein the microwave transmission has a frequency between 5.0 and 6.0 Ghz.

4. The method of claim 1 further comprising the step of inputting pan, tilt, and zoom control instructions at the base unit to control the operation of the fixed covert imaging means.

5. The method of claim 1 further comprising the step of using additional cameras at the remote location and selecting between video data generated by the fixed covert imaging means.

6. The method of claim 5 wherein the selecting between video data is made by inputs to the base unit.

7. The method of claim 1 wherein the computer network is the internet.

15. The method of claim 1 wherein converting and packetizing the digital electric signal into the secure pre-selected IP protocol format comprises encrypting the digital signal by a video codec chip.

8. A system for providing convert, direct wireless video surveillance data obtained at a remote location to a plurality of computer terminals on a network comprising:

at least one fixed covert camera for generating an electromagnetic signal containing video data representing real time images of the remote location;

a signal compression chip for converting the electromagnetic signal into a digital signal;

means for encrypting the digital signal into a secure pre-selected IP protocol format;

a first transceiver for transmitting the encrypted digital signal;

a second transceiver for receiving the encrypted digital signal;

means for transmitting via microwave transmissions the encrypted digital signal to a base unit;

means for receiving and decoding the microwave transmission at the base unit; and

means for transmitting the microwave transmission from the base unit to a plurality of computer terminals over a private network for more than one user to simultaneously view the real time image using the plurality of computer terminals.

9. The system of claim 8 further comprising means for storing the microwave transmission at the base unit.

10. The system of claim 8 further comprising means for controlling the fixed covert camera from inputs at the base unit.

16. The system of claim 8 wherein the signal compression chip comprises a video codec chip.

17. The system of claim 16 wherein the video codec chip comprises an MPEG encoder/decoder.

11. A covert wireless data communication system for the acquisition and secure transmission of data, comprising:

at least one fixed remote transceiver, said transceiver being a self contained, powered device selectively activatable to acquire and transmit, in real time, covert data relating to a geographic location at which the transceiver is placed, said transceiver comprising an imaging means, data encoding means, and a transmitter such that as the imaging means acquires data, the data encoding means converts the data, using a signal compression chip, to a secure digital file which the transmitter transmits at a pre-selected microwave frequency over a secure transmission path;

a central transceiver in direct communication with said remote transceiver and receiving the transmitted secure digital file, the central transceiver including a server to which the central transceiver provides the secure digital file when it is received, the server being configured to construct a digital video signal from the data contents of the digital file; and

display means to which the resulting digital video signal is supplied for displaying a video image of the geographic location to a plurality of terminals so the real time video image can be simultaneously viewed by more than one user.

12. The covert wireless data processing system of claim 11 further including a plurality of selectively activatable remote transceivers each of which is a self contained powered device that transmits the secure digital file at a pre-selected frequency to the central transceiver in real time.

13. The covert wireless data processing system of claim 11 in which the signal compression chip comprises a video codec chip.

14. The covert wireless data processing system of claim 11 in which the display means comprises a computer terminal.