Comprehensive intruder-environmental hazard detection, control, and action system

• US 4,536,747 A
• Filed: 02/11/1982
• Issued: 08/20/1985
• Est. Priority Date: 02/11/1982
• Status: Expired due to Term

• Current Assignee: Garold K. Jensen
• Original Assignee: Garold K. Jensen
• Inventors: Jensen, Garold K.
• Primary Examiner(s): Crosland, Donnie L.
• Application Number:
  US06/347,952
• Time in Patent Office: 1,286 Days
• Field of Search: 340/506, 340/502, 340/500, 340/517, 340/521, 340/522, 340/523, 340/531, 340/533, 340/534, 340/538, 340/551, 340/552, 340/554, 340/561, 179/5 R, 179/5 P
• US Class Current: 340/502
• CPC Class Codes: G08B 19/00 Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
• CPC Class Codes: G08B 23/00 Alarms responsive to unspecified undesired or abnormal conditions

Abstract

Detectors (11a-d) are located at a plurality of locations and include go, no-go decision processor apparatus for subjecting outputs of the detectors (11a-d) to a go, no-go decision process. First signal generator and transmitter apparatus (12a-d) are interconnected to said go, no-go decision processor apparatus for generating and transmitting signals responsive to the output of said go, no-go decision processor apparatus, the signals being transmitted in a wave form configured to maximize differentiation from noise and interference. First data receiver apparatus (13) receives the signals from said first signal generator and transmitter apparatus (12a-d) and includes wave form recognition apparatus. A reprogrammable central processor apparatus (14) is interconnected to the data receiver apparatus (13) for providing action outputs representative of one or more actions to be taken in response to one or more signals received from the first data receiver apparatus (13). The reprogrammable central processor apparatus (14) provides for preselection of a false alarm rate based on action to be taken. The action outputs are provided to a second signal generator and transmitter apparatus (15) for transmission to a plurality of data receiver apparatus (16a-c) each interconnected to action devices (17a-c) for taking appropriate action in response to signals received from said second signal generator and transmission apparatus (15).

Claims

1. A comprehensive security system comprising:

detector means located at a plurality of locations for detecting conditions at said locations, said detector means providing output in response to said detected conditions, said detector means including go, no-go decision processor means for receiving and subjecting said outputs to a go, no-go decision process by comparing said outputs to a predetermined criteria so as to determine whether a valid detection has been made, as opposed to a spurious detection, whereby a very low false alarm rate is assured, said go, no-go decision processor means providing an output upon determination of a valid detection by said detector means, said go, no-go decision processor means requiring multiple detections by said detector means before a detection is determined as being valid;

first signal generator and transmitter means located at said locations and operatively interconnected to said go, no-go decision processor means for generating and transmitting on a RF transmission path signals responsive to the output of said go, no-go decision processor means, said first signal generator and transmitter means providing said signals with a wave form configured to maximize differentiation of the wave form from noise and interference on the RF transmission path, whereby said signals can be readily discriminated from noise and interference;

first data receiver means remote from said first signal generator and transmission means for receiving said signals from a plurality of said first signal generator and transmitter means, said first data receiver means including wave form recognition means for recognizing the wave form of the signals from said first signal generator and transmission means, whereby said first data receiver means is highly selective of the desired wave forms and highly rejective of noise or interference, said first data receiver means including means for outputting a signal, indicative of a specific detected condition, when a signal from said first signal generator and transmitter means is recognized;

reprogrammable central processor means for providing action outputs representative of one or more actions to be taken in response to one or more signals received from said first data receiver means, said reprogrammable central processor means comprising;

i. reprogrammable logic means including manually reprogrammable means for determining one or more actions selected from more than one type of action to be taken by the comprehensive security system in response to a specific detected condition as indicated by the signal received from said first data receiver means, said reprogrammable logic means further being responsive to various preselected groupings of said detected conditions, whereby the comprehensive security system provides for differing forcefulness of actions taken in response to varying types and levels of hazards and danger detected by the comprehensive security system; and

ii. reprogrammable logic means including manually reprogrammable means for selecting a false alarm rate from a selected grouping of different false alarm rates based on the action to be taken in response to the signals received from said first data receiver means;

second signal generator and transmitter means operatively interconnected to said reprogrammable central processor means for generating and transmitting signals on a RF transmission path in response to said action outputs received from said reprogrammable central processor means, said second signal generator and transmitter means providing said signals with a wave form configured to maximize differentiation of the wave form from noise and interference on the RF transmission path, whereby said signals can be readily discriminated from noise and interference; and

a plurality of second data receiver means remote from said second signal generator and transmitter means for receiving said signals from said second signal generator and transmitter means, said second data receiver means including wave form recognition means recognizing the wave form of the signals from said second signal generator and transmitter means, said second data receiver means being operatively interconnected to action devices for activating said action devices in response to said signals received from said second signal generator and transmitter means.

2. A security system according to claim 1 wherein said first and second signal generator and transmitter means include digital address encoding means for encoding a portion of the transmitted signal to identify the detector means and the action devices, respectively, and their location, said first and second signal generator and transmitter means further including error correcting means for outputting the wave form as three distinct signal groups including a synchronizing signal of predetermined modulation followed by a modulated data signal followed by an unmodulated space, said error correcting means repeating this signal grouping a number of times, said first and second data receiver means including digital address decoding means for receiving the output of the wave form recognition means of said first and second data receiver means, said decoding means including counting and gating means for recognizing only the predetermined transmitted signal wave forms and rejecting all other noise and signals, said decoding means further including digital decoder and error correction means.

3. A security system according to claim 1, wherein said reprogrammable central processor means includes a plurality of manually operable switch means for enabling/disabling processing of any one of the signals from said first data receiver means.

4. A security system according to claim 1, wherein said reprogrammable central processor means includes a plurality of manually operable switch means for placing any one of the action devices into or out of an automatic operating condition, wherein said reprogrammable central processor means may at any appropriate time automatically initiate the operation of a given action device only when the given action device is in the automatic operating condition.

5. A security system according to claim 1, wherein said reprogrammable central processor means includes manually operable means for manually operating said action devices.

6. A security system according to claim 1, wherein said reprogrammable central processor means includes indicator means for displaying the present operation of the detector means and the past operation of the detector means, said indicator means further including reset means for resetting the display of the past operation of the detector means, said reprogrammable central processor means further including indicator means for displaying the present operation of the action devices and the past operation of the action devices, said indicator means including reset means for resetting the display of the past operation of the action devices, thereby providing a complete system status report.

7. A security system according to claim 1, further including a plurality of remotely located detector means including sensors for sensing motion, each comprising:

means for generating an electromagnetic field;

capacitance means responsive to disturbances in said field;

self-excited oscillator means connected to said capacitance means for providing a signal having a frequency responsive to disturbances in said electromagnetic field;

frequency change detection means connected to said oscillator for detecting frequency changes in the signal from said oscillator; and

discriminator means connected to said frequency change detector means and operative for providing motion sensor output signals upon detection of somewhat continuous changes in said frequency, said discriminator means prohibiting output upon detection of random frequency changes.

8. A security system in accordance with claim 7 wherein said frequency change detection means includes:

frequency counter and timing means for receiving said oscillator signal and for counting the frequency of said oscillator signals, said frequency counter and timing means providing an output indicative of said frequency count;

means for providing decimal data of a selected digit of said frequency count, said decimal data being provided on ten separate output leads, each lead being indicative of a decimal value zero through nine;

dual time constant means connected to each of said output leads for providing dual time constant characteristics on each of said leads, said dual time constant means being further connected to provide a common output; and

a monostable multivibrator connected to said common output of said dual time constant means for providing a frequency change detection output upon being triggered.

9. A security system according to claim 2 wherein said encoding means comprises means for encoding a block of information, said block of information having a predetermined number of cycles of a clock frequency and a predetermined number of bits of digital data, means for generating a carrier frequency and means for modulating said carrier frequency with said block of information, and wherein said decoding includes means for demodulating said block of information, squelch circuit means for rejecting noise present with said carrier frequency, a shift register connected to receive said digital data, a receiver clock synchronized with said blocks of information and operative to shift said shift register in accordance with the received data, and means for decoding said digital data loaded into said shift register.

10. A security system in accordance with claim 1 wherein said security system includes a telephone status report system comprising:

multiplexer means for receiving multiple system status signals from said reprogrammable central processor means and for outputting said signals sequentially, said signals having either a high or low state;

means connected to said multiplexer means for detecting said high or low state, said means providing pulse signals having a pulse width indicative of said high or low state;

means connected to said multiplexer means for inputting audio frequency signals to said pulse means indicative of various groupings of said system status signals to said multiplexer means;

means connected to said multiplexer for sending said pulse signals to a remote telephone receiver; and

means for actuating said sending means.

11. A comprehensive security system comprising:

(a) detector means located at a plurality of locations for detecting conditions at said locations, said detector means providing output in response to said detected conditions, said detector means including go, no-go decision processor means for receiving and subjecting said outputs to a go, no-go decision process by comparing said outputs to a predetermined criteria so as to determine whether a valid detection has been made, as opposed to a spurious detection, whereby a very low false alarm rate is assured, said go, no-go decision processor means providing an output upon determination of a valid detection by said detector means;

first signal generator and transmitter means located at said locations and operatively interconnected to said go, no-go decision processor means for generating and transmitting on a RF transmission path signals responsive to the output of said go, no-go decision processor means, said first signal generator and transmitter means providing said signals with a wave form configured to maximize differentiation of the wave form from noise and interference on the RF transmission path, whereby said signals can be readily discriminated from noise and interference;

first data receiver means remote from said first signal generator and transmission means for receiving said signals from a plurality of said first signal generator and transmitter means, said first data receiver means including wave form recognition means for recognizing the wave form of the signals from said first signal generator and transmission means, whereby said first data receiver means is highly selective of the desired wave forms and highly rejective of noise or interference, said first data receiver means including means for outputting a signal indicative of a specific detected condition, when a signal from said first signal generator and transmitter means is recognized;

reprogrammable central processor means for providing action outputs representative of one or more actions to be taken in response to one or more signals received from said first data receiver means, said reprogrammable central processor means comprising;

i. a plurality of timer means having an "on" state and an "off" state, each of said timer means being interconnected to a specific output of said first data receiver means, each of said timer means remaining in the "on" state for a predetermined period of time upon receipt of a corresponding selected signal from said first data receiver means, each of said timer means providing an output when in the "on" state;

ii. a plurality of indicator means, each one interconnected to a specific output of said timer means for providing a display of ongoing detection while a corresponding specific output is being received from said timer means;

iii. a plurality of flip-flop means, each interconnected to a specific output of said timer means, each of said flip-flop means being further interconnected to indicator means for displaying past detections upon receipt of a corresponding specific output from said timer means;

iv. a plurality of manually operable switch means, each interconnected to a specific output of said first timer means for providing when switched on signal input to a plurality of separate logic circuit means upon receipt of a corresponding specific output from said timer means;

v. said logic circuit means each interconnected to receive the output of one or more of said first switch means for providing a logic output in response thereto;

vi. a plurality of detection criteria determining logic means interconnected to said logic circuit means output for providing a selection of false alarm rates for initiation of the action devices, detection criteria determining logic means comprising an AND gate logic means, diode OR gate means, and a plurality of manually operable switch means interconnected for providing a logic output;

vii. a plurality of manually operable second switch means each interconnected to a specific logic output of said plurality of detection criteria determining logic for providing when switched on an action output in response to receipt of a corresponding specific logic output;

viii. a plurality of indicator means each interconnected to a specific action output for providing a display of present acion being taken upon receipt of a corresponding specific action output from said second switch means;

ix. a plurality of flip-flop means interconnected to a specific action output and further interconnected to indicator means for displaying past actions upon receipt of a corresponding specific action output from said second switch means;

x. a plurality of manually operable third switch means each interconnected to a plus bus voltage for causing when switched on a specific output action signal to be transmitted regardless of whether a corresponding action output has been provided by said second switch means;

second signal generator and transmitter means operatively interconnected to said reprogrammable central processor means for generating and transmitting signals on a RF transmision path in response to said action outputs received from said reprogrammable central processor means, said second signal generator and transmitter means providing said signals with a wave form configured to maximize differentiation of the wave forms from noise and interference on the RF transmission path, whereby said signals can be readily discriminated from noise and interference; and

a plurality of second data receiver means remote from said second signal generator and transmitter means for receiving said signals from said second signal generator and transmitter means, said second data receiver means including wave form recognition means for recognizing the wave form of the signals from the second signal generator and transmitter means, said data receiver means being operatively interconnected to action devices for activating said action devices in response to said signals received from said second signal generator and transmitter means.

12. A security system according to claim 11 wherein said first and second signal generator and transmitter means include digital address coding means for encoding a portion of the transmitted signal to identify the detector means and the action devices, respectively, and their location, said first and second signal generator and transmitter means further including an error correcting means for outputting the wave form as three distinct signal groups including a synchronizing signal of predetermined modulation followed by a modulated data signal followed by an unmodulated space, said error correcting means repeating this signal grouping a number of times, said first and second data receiver means including digital address coding means for receiving the output of the wave form recognition means of said first and second data receiver means, said decoding means including counting and gating means for recognizing only the predetermined transmitted signal wave forms and rejecting all other noise and signals, said decoding means further including digital decoder and error correction means.