Surveillance and intrusion detecting system

Claim 2

A security system for detection of motion occurring within a predetermined area under surveillance comprising: a security control station remote from the location of said area, said station having a visual display monitor; a scanning-type sensor, at said location of said area under surveillance, for continuously producing composite video signal frames of said area; means, including a video storage tube, connected to said scanning-type sensor for comparing consecutive said frames and for producing signals indicating changes in video signal between consecutive frames; alarm means at said location for receiving said frame change signals and in response thereto transmitting to said control station an alarm signal; control means response to said alarm signal for applying one of said video signal frames to said monitor for display; and storage control means at said control station for repetitively storing and displaying on said monitor a single subsequent full frame of video signals following the transmission of said alarm signal to allow said moving target to move further into said area for viewing.

Claim 3

A system as defined in claim 1 including means responsive to signals indicating a moving target condition for mixing with said video signals discrete video brightening signals to brighten outlines of moving targets displayed on said monitor.

Claim 4

A system as defined in claim 1 including means at said control station for sounding an audio alarm in response to said alarm signal.

Claim 5

A system as defined in claim 1 including means at said control station for selectively overriding said storage control means to continuously display on said monitor successive frames of video signals.

Claim 6

A system as defined in claim 1 including a magnetic tape unit for recording video signals applied to said monitor.

Claim 7

A security system for detection of motion occurring in one of a plurality of distinct areas under surveillance, each area being at a location remote from a security control station, comprising: at least one surveillance unit for each of said areas at the location thereof, a given unit including a scanning-type sensor for continuously producing composite video signal frames of a given area, and video storage tube means responsive to said video signal frames for producing, at the location of said given unit, signals indicating a change between consecutive frames of said video signal frames in said given area; alarm means at said location for generating an alarm signal in response to changes of said video signal frames between consecutive video signal frames; means for transmitting said video signal frames and said alarm signal from said given unit to said control station; a first display monitor at said control station; first control means responsive to the first alarm signal transmitted to said control station for applying the video signal frames from the unit originating said first alarm signal to said first display monitor for display, and for simultaneously locking out alarm signals from other units; and first storage control means at said control station for repetitively storing and displaying on said first monitor a single subsequent full frame of video signals following response of said first control means to said first alarm signal to allow said moving target to move further into said area for viewing.

Claim 8

A security system for detection of motion occurring in one of a plurality of distinct areas under surveillance, each area being at a location remote from a security control station, comprising: at least one surveillance unit for each of said areas at the location thereof, a given unit including a scanning-type sensor for continuously producing composite video signal frames of a given area, and video storage tube means responsive to said video signal frames for producing, at the location of said given unit, signals indicating a change between consecutive frames of said video signal frames in said given area; alarm means at said location for generating an alarm signal in response to changes of said video signal frames between consecutive video signal frames; means for transmitting said video signal frames and said alarm signal from said given unit to said control station; a first display monitor at said control station; first control means responsive to the first alarm signal transmitted to said control station for applying the video signal frames from the unit originating said first alarm signal to said first display monitor for display, and for simultaneously locking out alarm signals from other units; and first storage control means at said control station for repetitively storing and displaying on said first monitor a single subsequent full frame of video signals following response of said first control means to said first alarm signal to allow said moving target to move further into said area for viewing.

Claim 9

A system as defined in claim 6 including means responsive to signals indicating a moving target condition for mixing with said video signals discrete video brightening signals to brighten outlines of moving targets displayed on said monitor.

Claim 10

A system as deFined in claim 7 including means at said control station for selectively overriding said first storage control means to continuously display on said first monitor successive frames of video signals.

Claim 11

A system as defined in claim 8 including a first magnetic tape unit for recording video signals applied to said monitor.

Claim 12

A security system as defined in claim 9 including means at said control station for indicating the origin of a video signal applied to said first monitor by said control means, and means at said control station for indicating the origin of each alarm signal transmitted to said control station.

Claim 13

A security system as defined in claim 10 including means as said control station for erasing the recorded frame from the surveillance unit having its video signal applied to said first display monitor and simultaneously resetting said first control means to make said first control means responsive to an alarm signal from another surveillance unit.

Claim 14

A security system as defined in claim 11 including a second display monitor and a second control means, said second control means connected to be enabled by said first control means when a video signal is applied to said first monitor, said second control means being connected to channel the video signal from a surveillance unit to said second display monitor in response to an alarm signal transmitted from such surveillance unit subsequent to said first alarm, and to prevent receipt of other alarm signals at said second control means.

Claim 15

A system as defined in claim 12 including means at said control station for indicating the origin of a video signal applied to said first monitor by said control means.

Claim 16

A system as defined in claim 13 including means at said control station for resetting the surveillance unit having its video signal applied to said second display monitor and simultaneously resetting said second control means, whereby said second control means is rendered responsive to an alarm signal from another surveillance unit if enabled by said first control means applying video signals to said first monitor.

Claim 17

A system as defined in claim 14 including first storage control means at said control station for storage and display on said first monitor the next full frame of video signals received by said first monitor following response of said first control means to said first alarm signal, and second storage control means at said control station for storage and display on said second monitor the next full frame of video signals received by said second monitor following response of said second control means to an alarm signal received by said second control means.

Claim 18

A system as defined in claim 15 including means at said control station for selectively overriding said first and second storage control means to continuously display on one of said first and second monitors successive frames of video signals.

Claim 19

A system as defined in claim 16 including first and second magnetic tape units for recording video signals applied to said first and second monitors, respectively.