System and method for calibrating a microwave motion detector

1. A method of automatically calibrating a microwave motion detector comprising the steps of:

setting said microwave motion detector to a calibration mode;

waiting a preset period of time for an installer to walk to a furthest distance in a protected area from said microwave motion detector;

indicating when said preset period of time has expired, said indication is indicative of said microwave motion detector being ready to receive a calibration Doppler signal;

receiving the calibration Doppler signal generated by motion at the furthest distance from said microwave motion detector within the protected area;

measuring an amplitude of said calibration Doppler signal; and

storing a motion detection threshold for the microwave motion detector where the motion detection threshold is a proportional to the measured amplitude.

2. The method of automatically calibrating a microwave motion detector according to claim 1 , further comprising the step of:

confirming that the motion detection threshold is an adequate setting of the microwave motion detector.

3. A The method of automatically calibrating a microwave motion detector according to claim 1 , further comprising the steps of:

timing a second preset period of time in which the installer walks; and

resetting said microwave motion detector to alarm mode after the second preset period of time expires.

4. The method of automatically calibrating a microwave motion detector according to claim 1 , wherein said motion detection threshold is a threshold setting for generating an alarm.

5. The method of automatically calibrating a microwave motion detector according to claim 1 further comprising the step of:

indicating when said microwave motion detection is reset.

6. The method of automatically calibrating a microwave motion detector according to claim 1 , wherein said preset period of time is preset based a microwave motion detector's detection range.

7. The method of automatically calibrating a microwave motion detector according to claim 1 , further comprising the step of:

converting said Doppler signal into a digital signal for measurement.

8. A microwave motion detector comprising:

a calibration activation switch for switching to a calibration mode;

a timing section for timing a first preset period of time and a second preset period of time, said first preset period of time being a period depending on a maximum detection distance of the microwave motion detector;

an indicator for indicating when the first preset period of time has expired, said indication being indicative of said microwave motion detector being ready to receive a calibration Doppler signal;

a microwave circuitry for receiving calibration Doppler signals during the second preset period of time in which an installer walks a furthest distance from the microwave motion detector;

a measurement section for measuring an amplitude of said calibration Doppler signals;

a storage section for storing a detection threshold where the detection threshold is a proportional to the measured amplitude; and

a notification section for indicating a start of the calibration, and an expiration of the second preset period of time, and if there is trouble with a level of the detection threshold.

9. The microwave motion detector of claim 8 , wherein said detection threshold is used by the microwave motion detector for determining whether a received signal is indicative of motion.

10. The microwave motion detector of claim 8 , wherein said calibration activation switch is responsive to a remote control device.

11. The microwave motion detector of claim 10 , wherein said remote control device is a security system keypad.

12. The microwave motion detector of claim 10 , wherein said remote control device is a keyfob.

13. The microwave motion detector of claim 8 , further comprising an alarm generation section for generating an alarm based at least upon a comparison between the output of the microwave circuitry and the stored detection threshold.

14. The microwave motion detector of claim 11 , further comprising a transceiver for receiving a signal from said security system keypad.

15. The method of automatically calibrating a motion detector according to claim 1 , further the step of comprising setting the motion detector threshold, wherein the measured amplitude is multiplied by a preset parameter to generate the motion detection threshold.

16. The microwave motion detector of claim 11 , wherein the microwave motion detection is a dual technology motion detector.