System and method for controlling an anti-masking system
View Patent ↗The present invention is directed to a method and system for controlling operation of an anti-masking system that detects tampering with a motion detection system. The control system may include a selective adjustment mechanism for adjusting a sensitivity level of the anti-masking system and a trigger mechanism for triggering the selective adjustment mechanism upon occurrence of an event to raise the sensitivity level of the anti-masking system. The control system may additionally include a timer for extending the raised sensitivity level for a predetermined time period beyond the occurrence of the event. The control system may operate in conjunction with a motion detection system that includes at least one motion detection sensor for detecting motion.
1. An anti-masking control system for controlling operation of an anti-masking system that detects tampering with a motion detection system, the control system comprising:
a selective adjustment mechanism for automatically adjusting a sensitivity level of the anti-masking system; and
a trigger mechanism for triggering the selective adjustment mechanism upon occurrence of an event to raise the sensitivity level of the anti-masking system.
2. The anti-masking control system of claim 1 , further comprising a sensor for sensing a presence and activating the trigger mechanism.
3. The anti-masking control system of claim 2 , wherein the sensor detects body heat.
4. The anti-masking control system of claim 2 , wherein the sensor comprises at least one of a PIR sensor and a MW sensor for sensing the presence.
5. The anti-masking control system of claim 1 , further comprising a timer for extending the raised sensitivity level for a predetermined time period.
6. The anti-masking control system of claim 5 , wherein the predetermined time period is between 2 minutes and 8 minutes.
7. The anti-masking control system of claim 1 , wherein an initial sensitivity level is a disabled state and a triggered sensitivity level is an enabled state.
8. The anti-masking control system of claim 1 , wherein an initial sensitivity level is a monitoring state having a lower sensitivity level than the triggered sensitivity level.
9. A motion detection system comprising:
at least one motion detection sensor for detecting motion;
an anti-masking system for preventing tampering with the at least one motion detection sensor;
an anti-masking control system for minimizing false alarms of the anti-masking system by selectively altering a sensitivity of the anti-masking system;
a trigger mechanism for receiving output from the sensor; and
a selective adjustment mechanism for automatically adjusting a sensitivity level of the anti-masking system in response to an output from the trigger mechanism indicating detection of a presence by the at least one motion detection sensor.
10. The motion detection system of claim 9 , wherein the sensor detects body heat.
11. The motion detection system of claim 9 , wherein the sensor comprises at least one of a PIR sensor and a MW sensor for sensing a presence.
12. The motion detection system of claim 9 , further comprising a timer for extending the adjusted sensitively level for a predetermined time period.
13. The motion detection system of claim 12 , wherein the predetermined time period is between 2 minutes and 8 minutes.
14. The motion detection system of claim 9 , wherein an initial sensitivity level is a disabled state and an adjusted sensitivity level is an enabled state.
15. The motion detection system of claim 9 , wherein an initial sensitivity level is a monitoring state having a lower sensitivity level than an adjusted sensitivity level.
16. The motion detection system of claim 9 , wherein the anti-masking system comprises an IR LED and the anti-masking control system disables a drive signal to the IR LED during a period of low sensitivity.
17. A method for minimizing false alarms in an anti-masking system designed to prevent tampering with a motion detection system, the method comprising:
implementing a sensor to detect a presence;
activating a trigger mechanism upon detection of the presence;
selectively adjusting a sensitivity level of the anti-masking system automatically in response to the detection of the presence.
18. The method of claim 17 , further comprising activating a timer for extending the adjusted sensitively level for a predetermined time period.
19. The method of claim 17 , further comprising implementing the sensor to detect body heat.
20. The method of claim 17 , wherein the step of implementing a sensor to detect a presence comprises providing at least one of a PIR sensor and a MW sensor for sensing the presence.
21. The method of claim 18 , further comprising adjusting the predetermined time period to between 2 minutes and 8 minutes.
22. The method of claim 18 , further comprising setting an initial sensitivity level to a disabled state and adjusting the sensitivity level to an enabled state.
23. The method of claim 18 , further comprising setting an initial sensitivity level to a monitoring state and adjusting the sensitivity level to a higher sensitivity monitoring state.
24. A computer readable medium comprising computer executable instructions for performing the method of claim 16 .