Mobile, ground-based platform security system which transmits images that were taken prior to the generation of an input signal

• US 5,926,210 A
• Filed: 03/30/1998
• Issued: 07/20/1999
• Est. Priority Date: 07/28/1995
• Status: Expired due to Term

• Current Assignee: Kalatel Incorporated
• Original Assignee: Kalatel Incorporated
• Inventors: Van Horn, Kenneth G., Hackett, Kenneth R., Wikman, William H. Jr.
• Primary Examiner(s): Ton, Dang
• Assistant Examiner(s): VINCENT, DAVID ROBERT
• Application Number:
  US09/050,438
• Time in Patent Office: 477 Days
• Field of Search: 348/143, 348/144, 348/148, 348/158, 348/159, 348/211, 348/212-214, 348/376, 386/46, 340/52, 364/401, 379/58, 379/64
• US Class Current: 348/158
• CPC Class Codes: G08B 13/19641 Multiple cameras having overlapping views on a single scene
• CPC Class Codes: G08B 13/19647 Systems specially adapted for intrusion detection in or around a vehicle
• CPC Class Codes: G08B 13/19658 Telephone systems used to communicate with a camera, e.g. PSTN, GSM, POTS
• 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 13/19673 Addition of time stamp, i.e. time metadata, to video stream
• CPC Class Codes: G08B 25/016 Personal emergency signalling and security systems emergency non-personal manually actuated alarm activators G08B25/12
• CPC Class Codes: H04N 7/188 Capturing isolated or intermittent images triggered by the occurrence of a predetermined event, e.g. an object reaching a predetermined position signal generation from motion picture films H04N5/253

Abstract

The present invention discloses a security system for monitoring a mobile, ground-based platform via image acquisition in the form of electrical pixel signals. In one embodiment, the system includes a plurality of cameras attached to the platform and arranged to capture images of zones associated with the interior of the platform or with its exterior and current ambient environmental surroundings. Storage media is located on the platform for storing images captured in the form of electrical signals by the cameras. The system is configured for transferring images to the storage media and to at least one remote location wherein the images are viewable at the remote location. The system may advantageously employ wireless transmission to transfer images to a remote location. The images may be captured responsive to an input such as from a panic button. The system may also employ removable storage media for storing images on the platform. Upon removal, the removable storage media may be transported to the remote location. The images stored in the removable storage media may then be randomly accessed and viewed at the remote location.

Claims

1. A security system for use on a mobile, ground-based platform, said system comprising:

at least one camera attached to said mobile, ground-based platform and positioned for capturing images of a predetermined portion of the platform;

image storage means attached to the mobile, ground-based platform for digitally storing said images on the mobile, ground-based platform, said image storage means being configured to digitally store said images in a way which provides for random access to the images; and

transfer means for responding to at least one input signal, wherein upon receipt of said input signal the transfer means cooperates with said image storage means to automatically select one or more images acquired prior to the generation of said input signal and to initiate the wireless transmission of said one or more selected images to at least one location remote from said mobile, ground-based platform so that the selected images are viewable at the remote location.

2. The security system of claim 1, wherein:

said image transfer means includes means for verifying accurate and complete transfer of said images between the mobile, ground-based and the remote location.

3. The security system of claim 2, wherein:

said transceiver means includes a cellular telephone transceiver.

4. The security system of claim 1, wherein:

said camera is a digital camera having a housing, and wherein said temporary storage means is positioned within said housing.

5. The security system of claim 1, further comprising:

control means for selectively controlling the capture and storage of images by said camera and image storage means, wherein said image storing means stores captured images at predetermined intervals, said control means also being responsive to said input signal such that, upon receipt of the input signal, storage of images at said predetermined intervals is suspended until one or more said selected images are transferred.

6. The security system of claim 1, wherein:

said mobile, ground-based platform is operated by an operator and wherein said system includes panic signal means which produces said input signal as a panic signal initiated by said operator via the panic signal means.

7. The security system of claim 6, wherein:

said system receives a shutdown signal from said mobile, ground-based platform while the platform is stationary and wherein said panic signal means is configured so as to continue to respond to said panic signal for a predetermined period of time following the initial receipt of the shutdown signal such that said alarm image is transferred during said predetermined time period.

8. The security system of claim 7, wherein:

said predetermined time period is at least one hour.

9. The security system of claim 1, wherein:

said transfer means includes transmission verification means for verifying accurate and complete transmission of the selected images between the mobile, ground-based and the remote location.

10. The security system of claim 9, wherein:

said transfer means includes means for causing said transceiver means to re-transmit certain portions of said selected images which are identified by said transmission verification means as inaccurate or incompletely transmitted.

11. The security system of claim 9, wherein:

said transmission verification means includes means for dividing said images into a series of packets, each packet including means for identifying the specific original image from which it was produced and the specific mobile, ground-based platform from which the image was transferred.

12. The security system of claim 11, wherein:

said transfer verification means includes means for generating a check sum which forms part of each said packet and wherein said means for detecting missing or inaccurate packets determines the accuracy of each transferred packet using said check sum.

13. The security system of claim 11, wherein:

said packet identification means specifies a packet identification number and an image identification number, which is unique to said mobile, ground-based platform, for each packet.

14. The security system of claim 11, wherein:

said transfer means includes means positioned at said remote location for reassembling said images by using said packet identifying means.

15. The security system of claim 14, wherein:

said reassembling means includes means for detecting missing or inaccurately transmitted packets and for causing said transfer means to re-transmit the missing or inaccurate packets until they are completely and accurately transferred to the remote location.

16. The security system of claim 1, wherein:

said system includes impact detection means on the mobile ground-based platform for producing said input signal responsive to an impact sustained by the mobile, ground-based platform.

17. The security system of claim 16, wherein:

said system receives a shutdown signal from said mobile, ground-based while the platform is stationary and wherein said impact detection means remains responsive to impacts for a predetermined period of time following the initial receipt of the shutdown signal so that said alarm image is transferred during said predetermined time period.

18. A security system for use on a mobile, ground-based platform, said system comprising:

at least one camera attached to said mobile, ground-based platform and positioned for capturing images of a predetermined portion of the platform;

image storage means attached to the mobile, ground-based platform for digitally storing said images on the mobile, ground-based platform, said image storage means being configured to digitally store said images in a way which provides for random access to the images;

transfer means for responding to at least one input signal, wherein upon receipt of said input signal the transfer means cooperates with said image storage means to automatically select one or more images acquired prior to the generation of said input signal and to initiate the wireless transmission of said one or more selected images to at least one location remote from said mobile, ground-based platform so that the selected images are viewable at the remote location; and

transmission verification means for verifying accurate and complete transmission of the selected images between the mobile, ground-based platform and the remote location and for causing said transfer means to re-transmit only certain portions of said selected images which are identified by said transmission verification means as inaccurate or incompletely transmitted.