Radio frequency communications scheme in life safety devices
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G08B-001/08
G08B-001/00
출원번호
US-0253289
(2005-10-17)
등록번호
US-7339468
(2008-03-04)
발명자
/ 주소
Andres,John J.
Buchholz,Matthew J.
Burnette,Stan
Silver,Travis
출원인 / 주소
Walter Kidde Portable Equipment, Inc.
대리인 / 주소
Merchant & Gould P.C.
인용정보
피인용 횟수 :
2인용 특허 :
155
초록▼
A method of radio frequency communication for a life safety device including a controller, a hazardous condition sensor, an alarm device, and a radio frequency communications device including transmitting and receiving capability. One method includes receiving a test signal using the radio frequency
A method of radio frequency communication for a life safety device including a controller, a hazardous condition sensor, an alarm device, and a radio frequency communications device including transmitting and receiving capability. One method includes receiving a test signal using the radio frequency communications device, lowering a voltage to the hazardous condition sensor to simulate a hazardous condition to test the hazardous condition sensor, and emitting an alarm using the alarm device if the hazardous condition sensor passes the test. Another method includes before transmitting a radio frequency signal, turning on the radio frequency communications device for a period of time, and delaying transmission if the radio frequency communications device receives a header, deadtime and startbit. Yet another method includes sending a test signal at a first transmission power level, and sending an alarm signal at a second transmission power level greater than the first transmission power level.
대표청구항▼
What is claimed is: 1. A method of radio frequency communication for a life safety device including a controller, a hazardous condition sensor, an alarm device, and a radio frequency communications device including transmitting and receiving capability, the method comprising: receiving a test signa
What is claimed is: 1. A method of radio frequency communication for a life safety device including a controller, a hazardous condition sensor, an alarm device, and a radio frequency communications device including transmitting and receiving capability, the method comprising: receiving a test signal using the radio frequency communications device, wherein the test signal is at a first duration that is shorter than an alarm signal at a second duration; lowering a voltage to the hazardous condition sensor to simulate a hazardous condition to test the hazardous condition sensor; and emitting an alarm using the alarm device if the hazardous condition sensor passes the test. 2. The method of claim 1, further comprising: receiving a silence signal using the radio frequency communications device; if the device is a master, desensitizing the hazardous condition sensor; and stopping the alarm from the alarm device. 3. The method of claim 1, further comprising: before transmitting a radio frequency signal, turning on the radio frequency communications device for a period of time; and delaying transmission if the radio frequency communications device receives a header, deadtime and startbit. 4. The method of claim 3, further comprising: calculating a time of a next transmission; and adding an unpredictable time to the time of the next transmission. 5. The method of claim 1, wherein receiving further comprises receiving the test signal at approximately one-half of a transmission power of an alarm signal. 6. A method of radio frequency communication for a life safety device including a controller, a hazardous condition sensor, an alarm, and a radio frequency communications device including transmitting and receiving capability, the method comprising: before transmitting a radio frequency signal, turning on the radio frequency communications device for a period of time; and delaying transmission if the radio frequency communications device receives a header, deadtime and startbit. 7. The method of claim 6, further comprising: calculating a time of a next transmission; and adding an unpredictable time to the time of the next transmission. 8. The method of claim 6, further comprising: sending a test or silence signal of a first duration; and sending an alarm signal at a second duration greater than the first duration. 9. A method of radio frequency communication for a life safety device including a controller, a hazardous condition sensor, an alarm, and a radio frequency communications device including transmitting and receiving capability, the method comprising: sending a test signal at a first transmission power level; and sending an alarm signal at a second transmission power level greater than the first transmission power level. 10. The method of claim 9, wherein the first transmission power is approximately one-half of the second transmission power. 11. The method of claim 9, further comprising: receiving a second test signal using the radio frequency communications device; lowering a voltage to the hazardous condition sensor to simulate a hazardous condition to test the hazardous condition sensor; and emitting an alarm using the alarm device if the hazardous condition sensor passes the test. 12. The method of claim 9, further comprising: receiving a silence signal using the radio frequency communications device; if the device is a master, desensitizing the hazardous condition sensor; and stopping an alarm from the alarm device. 13. The method of claim 9, further comprising: sending the test signal at a first duration; and sending an alarm signal at a second duration greater than the first duration.
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Canada Ronald G. ; Robinson James C. ; Czyzewski Zbigniew ; Davidson ; Jr. Taylor L. ; Pearce James W., Method and apparatus for configuring and synchronizing a wireless machine monitoring and communication system.
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