Single MCU-based motion detection, local alarm and supervisory arrangement for alarm system

• US 8,410,923 B2
• Filed: 11/25/2009
• Issued: 04/02/2013
• Est. Priority Date: 11/25/2008
• Status: Expired due to Fees

• Current Assignee: James Parker, Randall Wang
• Original Assignee: James Parker, Randall Wang
• Inventors: Wang, Randall, Parker, James
• Primary Examiner(s): Wu, Daniel
• Assistant Examiner(s): Barakat, Mohamed
• Application Number:
  US12/592,481
• Publication Number:
  US 20100219949A1
• Time in Patent Office: 1,224 Days
• Field of Search: 340/545.3, 340/565, 340/567, 340/506, 340/541, 340/573.1, 340/556, 340/522
• US Class Current: 340/539.1
• CPC Class Codes: G08B 13/191 using pyroelectric sensor means
• CPC Class Codes: G08B 25/14 Central alarm receiver or annunciator arrangements
• CPC Class Codes: G08B 29/02 Monitoring continuously signalling or alarm systems

Abstract

A device with single MCU-based motion detection, local alarm and supervisory arrangement for alarm system controlled by an alarm control panel (ACP) is disclosed. The device includes a sensor component to monitor environment, an output component to generate warning messages, a power supply component to provide power, and a microcontroller to communicate with sensor component, drive output component and monitor the status of ACP. The device can detect when intruders break in and make alarm warnings even when the ACP is destroyed. Plurality of devices and said ACP form a local warning matrix network (LWMN) to increase the detection area and scary effect to intruders. Each device of LWMN works independently when the ACP is destroyed.

Claims

1. A device with single main control unit (MCU) based motion detection, local alarm and supervisory arrangement for alarm system controlled by an alarm control panel (ACP), comprising:

a sensor component monitoring environment of said alarm system to generate a reference information, wherein said sensor component comprises an energy sensor adapted for defining a detecting area and detecting energy directed within said detecting area to produce inputted energy signals;

an output component communicatively connected with said ACP which is adapted to generate warning messages;

a power supply component providing power for said device wherein further comprises an auxiliary (AUX) power supply provided by said ACP and a backup power supply providing power for said device when said ACP is not available; and

a microcontroller communicatively connected with said sensor component for receiving said reference information therefrom and drive said output component according to said reference information, wherein said microcontroller monitors said ACP and enables said backup power supply when said ACP is not available, wherein said inputted energy signals from said energy sensor is processed by said microcontroller which comprises a means for converting said inputted energy signals into data samples, wherein a plurality of data samples are constructed to form a predetermined number of constructed sample window of constructed samples in time, wherein a control range is determined for each of said constructed sample windows, and thus by comparing said relationship between said successive constructed sample windows, said microcontroller is capable of determining whether there is an need to send alarm signals to said ACP.

2. The device, as recited in claim 1, wherein said energy sensor is a pyroelectric sensor which is a pyroelectric sensing element adapted for sensing energy radiation, wherein said infrared radiation as an input signal is converted into an output signal through a signal conversion module of said pyroelectric sensor, wherein said output signals generally contain real signals with low frequency and noise signals mixed therewith.

3. The device, as recited in claim 2, wherein said converting means of said microcontroller is an analog to digital converter (A/D converter) converting said output signals from said pyroelectric sensor to data samples for data processing.

4. The device, as recited in claim 3, wherein said sensor component further comprises a LED indicator to indicate that a motion is detected;

a pet immunity jumper to set immunity weight range for pets;

an auto LED jumper to enable and disable said LED indicator; and

a tamper switch to detect if said device is been invaded.

5. The device, as recited in claim 4, wherein said microcontroller send alarm signal to said ACP while said ACP is in armed status.

6. The device, as recited in claim 5, wherein said LED indicator flashes when said microcontroller decides motion is detected.

7. The device, as recited in claim 6, wherein said auto LED jumper is set to disable said LED indicator to avoid disclosing detection profile when said microcontroller decides a motion is detected.

8. The device, as recited in claim 1, wherein said power supply component further comprises a power test point (APTP) communicatively connected with said microcontroller to monitor said power supply from said ACP, wherein when said microcontroller detects via said APTP that said AUX power supply is disconnected or lost, said microcontroller sends alarm signal to said ACP and enable said backup power supply to provide power to said device.

9. The device, as recited in claim 8, wherein said backup power supply is a battery, wherein said power supply component further comprises a low battery test point (LBTP) to monitor said backup power supply, wherein when said microcontroller detects via said LBTP that said capacity of said backup power supply is low, said microcontroller sends an alarm signal to said ACP to indicate low energy.

10. The device, as recited in claim 3, wherein said power supply component further comprises a power test point (APTP) communicatively connected with said microcontroller to monitor said power supply from said ACP, wherein when said microcontroller detects via said APTP that said AUX power supply is disconnected or lost, said microcontroller sends alarm signal to said ACP and enable said backup power supply to provide power to said device.

11. The device, as recited in claim 10, wherein said backup power supply is a battery, wherein said power supply component further comprises a low battery test point (LBTP) to monitor said backup power supply, wherein when said microcontroller detects via said LBTP that said capacity of said backup power supply is low, said microcontroller sends an alarm signal to said ACP to indicate low energy.

12. The device, as recited in claim 11, wherein said output component comprises an alarm output element which enables said microcontroller to send alarm signal to said ACP;

a siren input element which enables said microcontroller to receive siren signals from said ACP; and

an alarm warning element controlled by said microcontroller to send warning messages.

13. The device, as recited in claim 12, wherein said microcontroller controls said alarm warning element to send audible and visual warning messages.

14. The device, as recited in claim 13, wherein said alarm output element comprises a wireless alarm output transmitter module to send alarm signal to said ACP wirelessly.

15. The device, as recited in claim 14, wherein said siren input element comprises a wireless siren input receiver module to receive said siren signals from said ACP wirelessly.

16. The device, as recited in claim 3, wherein said output component comprises an alarm output element which enables said microcontroller to send alarm signal to said ACP;

a siren input element which enables said microcontroller to receive siren signals from said ACP; and

an alarm warning element controlled by said microcontroller to send warning messages.

17. The device, as recited in claim 16, wherein said microcontroller controls said alarm warning element to send audible and visual warning messages.

18. The device, as recited in claim 17, wherein said alarm output element comprises a wireless alarm output transmitter module to send alarm signal to said ACP wirelessly.

19. The device, as recited in claim 18, wherein said siren input element comprises a wireless siren input receiver module to receive said siren signals from said ACP wirelessly.

20. The device, as recited in claim 9, wherein said output component comprises an alarm output element which enables said microcontroller to send alarm signal to said ACP;

a siren input element which enables said microcontroller to receive siren signals from said ACP; and

an alarm warning element controlled by said microcontroller to send warning messages.

21. The device, as recited in claim 20, wherein said microcontroller controls said alarm warning element to send audible and visual warning messages.

22. The device, as recited in claim 21, wherein said alarm output element comprises a wireless alarm output transmitter module to send alarm signal to said ACP wirelessly.

23. The device, as recited in claim 22, wherein said siren input element comprises a wireless siren input receiver module to receive said siren signals from said ACP wirelessly.

24. An alarm system, comprising:

an alarm control panel (ACP); and

a plurality of devices with single main control unit (MCU) based motion detection, local alarm and supervisory arrangement connecting with said ACP, wherein comprises;

a sensor component monitoring environment of said alarm system to generate a reference information, wherein said sensor component of said device comprises an energy sensor adapted for defining a detecting area and detecting energy directed therewithin to produce inputted energy signals;

an output component communicatively connected with said ACP which is adapted to generate warning messages;

a power supply component providing power for said device wherein further comprises an auxiliary (AUX) power supply provided by said ACP and a backup power supply providing power for said device when said ACP is not available; and

a microcontroller communicatively connected with said sensor component for receiving said reference information therefrom and drive said output component according to said reference information, wherein said microcontroller monitors said ACP and enables said backup power supply when said ACP is not available, wherein said plurality of devices and said ACP form a local warning matrix network (LWMN), wherein when one of said devices detects motion and sends an alarm signal to said ACP, said ACP will send signal to all devices for alarming, wherein each device of said system works independently when said ACP is destroyed, wherein said inputted energy signals from said energy sensor is processed by said microcontroller which comprises a means for converting said inputted energy signals into data samples, wherein a plurality of data samples are constructed to form a predetermined number of constructed sample window of constructed samples in time, wherein a control range is determined for each of said constructed sample windows, and thus by comparing said relationship between said successive constructed sample windows, said microcontroller is capable of determining whether there is an need to send alarm signals to said ACP.

25. The system, as recited in claim 24, wherein said energy sensor is a pyroelectric sensor which is a pyroelectric sensing element adapted for sensing energy radiation, wherein said infrared radiation as an input signal is converted into an output signal through a signal conversion module of said pyroelectric sensor, wherein said output signals generally contain real signals with low frequency and noise signals mixed therewith.

26. The system, as recited in claim 25, wherein said converting means of said microcontroller is an analog to digital converter (A/D converter) converting said output signals from said pyroelectric sensor to data samples for data processing.

27. The system, as recited in claim 26, wherein said sensor component further comprises a LED indicator to indicate that a motion is detected;

a pet immunity jumper to set immunity weight range for pets;

an auto LED jumper to enable and disable said LED indicator; and

a tamper switch to detect if said device is been invaded.

28. The system, as recited in claim 27, wherein said microcontroller send alarm signal to said ACP while said ACP is in armed status.

29. The system, as recited in claim 28, wherein said output component comprises an alarm output element which enables said microcontroller to send alarm signal to said ACP;

a siren input element which enables said microcontroller to receive siren signals from said ACP; and

an alarm warning element controlled by said microcontroller to send warning messages.

30. The system, as recited in claim 29, wherein said microcontroller controls said alarm warning element to send audible and visual warning messages.

31. The system, as recited in claim 30, wherein said alarm output element comprises a wireless alarm output transmitter module to send alarm signal to said ACP wirelessly.

32. The system, as recited in claim 31, wherein said siren input element comprises a wireless siren input receiver module to receive said siren signals from said ACP wirelessly.

33. A process for operating a device with single main control unit (MCU) based motion detection, local alarm and supervisory arrangement for alarm system controlled by an alarm control panel (ACP), comprising the steps of:

(a) defining a detecting area and detecting energy directed within said detecting area to produce inputted energy signals;

(b) checking an auxiliary (AUX) Power supply of said ACP;

(c) enabling a backup power supply to provide power;

(d) generating audio and/or video alarm alerts for a predetermined period of time if said ACP is destroyed; and

(e) generating audio and/or video alarm alerts for a predetermined period of time when a motion is detected;

wherein the step (b) further comprises steps of;

(b1) checking said ACP'"'"'s arm status if said ACP is operational;

(b2) checking if said device detects any movement;

(b3) sending a trigger signal to said ACP when said ACP is armed and a movement is detected;

(b4) checking a siren signal from a siren output of said ACP; and

(b5) generating audio and/or video alarm alerts for a predetermined period of time if a siren signal is received;

wherein the step (a) further comprises the steps of;

(a1) converting said inputted energy signals into data samples;

(a2) constructing said data samples to form a predetermined number of constructed sample window of constructed samples in time, wherein a control range is determined for each of said constructed sample windows; and

(a3) comparing a relationship between successive constructed sample windows of said constructed sample windows.