Method for the generation of an electrical signal sensor device for executing the method and the use of the sensor device
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G08B-021/00
출원번호
US-0298992
(1999-04-26)
우선권정보
CH-199800943 (1998-04-27)
발명자
/ 주소
Lang, Edo
Obrist, Roland
대리인 / 주소
Browdy and Neimark
인용정보
피인용 횟수 :
16인용 특허 :
9
초록▼
A method for generating an electrical signal and a sensor device (10) for executing the method. The signal is generated because of a change in a fluid-filled space. A sensor element (12) of the sensor device (10) detects the heat transfer over time between the sensor element (12) and the fluid. The
A method for generating an electrical signal and a sensor device (10) for executing the method. The signal is generated because of a change in a fluid-filled space. A sensor element (12) of the sensor device (10) detects the heat transfer over time between the sensor element (12) and the fluid. The sensor element (12), which has a temperature-dependent electrical conductivity and to which a voltage has been applied, is brought to a temperature which lies outside the range of the fluid temperatures. In the passive phase, the fluid is brought to a constant passive temperature by a heat transfer between the sensor element (12) and the surroundings. The sensor device (10) provides a constant passive output voltage. A heat transfer between the sensor element (12) and its surroundings takes place in the active phase by changes in the fluid-filled space. The sensor device (10) provides an active output voltage, which is different from the passive output voltage. When a difference between the output voltages is exceeded, the signal is generated. The device can be used for triggering the flushing action in sanitary installations, and for keeping a level constant, for example in aquarium installations.
대표청구항▼
A method for generating an electrical signal and a sensor device (10) for executing the method. The signal is generated because of a change in a fluid-filled space. A sensor element (12) of the sensor device (10) detects the heat transfer over time between the sensor element (12) and the fluid. The
A method for generating an electrical signal and a sensor device (10) for executing the method. The signal is generated because of a change in a fluid-filled space. A sensor element (12) of the sensor device (10) detects the heat transfer over time between the sensor element (12) and the fluid. The sensor element (12), which has a temperature-dependent electrical conductivity and to which a voltage has been applied, is brought to a temperature which lies outside the range of the fluid temperatures. In the passive phase, the fluid is brought to a constant passive temperature by a heat transfer between the sensor element (12) and the surroundings. The sensor device (10) provides a constant passive output voltage. A heat transfer between the sensor element (12) and its surroundings takes place in the active phase by changes in the fluid-filled space. The sensor device (10) provides an active output voltage, which is different from the passive output voltage. When a difference between the output voltages is exceeded, the signal is generated. The device can be used for triggering the flushing action in sanitary installations, and for keeping a level constant, for example in aquarium installations. rsively determining recursive descriptor summaries for each descriptor summary category and subcategory based on alarm status, the recursive descriptor summaries being for related, independent alarm events. 2. The apparatus according to claim 1, wherein the processor routine determines descriptor summaries in a real-time manner. 3. The apparatus according to claim 1 further including a screen view displaying the determined descriptor summaries. 4. The apparatus according to claim 1, wherein the recursive descriptor summary categories comprise: a dividing descriptor summary category; a division descriptor summary category; and wherein the processor routine repeatedly determines dividing and division descriptor summaries, each dividing and division descriptor summary category being a parent of a next descriptor summary category generation. 5. In a computer, an apparatus for detecting alarm patterns in a stream of alarm events in an alarm system having (i) an alarm variable event stream transferring alarm status information from alarm generators to an alarm system and (ii) a digital processor, the apparatus comprising: a historical database of alarm events having a subset of significant alarm events; and a processor routine operating on the processor, the processor routine: determining patterns of alarm events in time windows in the historical database following the significant alarm events, the processing routine auto-correlating multiple instances of the significant alarm events to restrict noise effects due to overlapping unknown patterns; and applying the patterns of alarms to the stream of alarm events to detect the determined patterns in the stream of alarm events. 6. The apparatus according to claim 5, wherein the processor routine preprocesses the historical database to remove established alarm events. 7. The apparatus according to claim 5, wherein the processor routine represents each potential pattern as a coded character string for further processing. 8. The apparatus according to claim 5, wherein the processor routine provides a subset of determined patterns to a detector routine monitoring the alarm patterns in the stream of alarm events. 9. In a computer, a method for affecting reported information provided by an alarm monitoring system having categories of alarms, including the steps of: providing a screen view coupled to an alarm monitoring system displaying a plurality of alarm categories and subcategories as selectable indicators, each category and subcategory including related alarm variables having respective alarm status information and category alarm status information; providing selectable functional mask/filter indicators representing possible functional states of the alarms; and masking/filtering alarm variables across a subset of the alarm categories as a function of the state of the selectable functional mask/filter indicators, thereby affecting the reported category alarm status information provided in the screen view. 10. The method according to claim 9, wherein the selectable functional mask/filter indicators include functional categories including at least one of: unacknowledged/acknowledged, recent/old, and in/out of service. 11. The method according to claim 10, wherein each selectable functional mask/filter indicator has states, including: an all alarms state; an only the alarms meeting the functional mask/filter indicator listed condition state; and an only the alarms not meeting the functional mask/filter indicator listed condition state. 12. The method according to claim 9, wherein the step of providing a screen view includes displaying alarm masking information as a function of a selectable alarm mask display indicator state, the alarm mask display indicator including a mask state and a reversed state, the screen view displaying alarm indicators when the alarm mask display indicator is in the mask state, the screen view displaying masked-out alarm indicators w
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이 특허에 인용된 특허 (9)
Tarpley Roy W. (Garland TX) Rehn Larry A. (Rowlett TX) Davis Paul H. (Seagoville TX), Autoreferencing liquid level sensing apparatus and method.
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