RU1817119C - Alarm system - Google Patents
Alarm systemInfo
- Publication number
- RU1817119C RU1817119C SU3020461A RU1817119C RU 1817119 C RU1817119 C RU 1817119C SU 3020461 A SU3020461 A SU 3020461A RU 1817119 C RU1817119 C RU 1817119C
- Authority
- RU
- Russia
- Prior art keywords
- detector
- relationship
- detectors
- output
- input
- Prior art date
Links
Landscapes
- Emergency Alarm Devices (AREA)
Description
15 - то же в полосах частот Л И и Д f3. Величины отношений амплитуд этих огибающих , при которых происходит срабатывание детекторов отношений 14 и 15, выбираютс в зависимости от типа охран - емого ограждени и типа примен емого датчика в каждом случае экспериментально. При равенстве заданной величине отношени амплитуд этих огибающих на входе одного из детекторов отношений 14 или 15 или обоих одновременно на их выходах по вл ютс сигналы, которые подаютс на один и другой входы элемента И 16 соответственно , который открываетс при их совпадении во времени. С выхода элемента И 16 сигна ы, соответствующие моментам времени одновременного срабатывани детекторов отношений 14 и 15, поступают на вход временного дискриминатора 17, который анализирует их по длительности и частоте следовани . В случае совпадени длительностей и частоты следовани этих сигналов с заданными во временном дискриминаторе 17 они поступают на вход решающего блока 18, который, произвед их дополни- тельную логическую обработку, вызывает15 - the same in the frequency bands L And D f3. The magnitudes of the amplitude ratios of these envelopes, at which the detectors of the ratios 14 and 15 are triggered, are selected depending on the type of guarded fence and the type of sensor used in each case experimentally. If the specified value of the ratio of the amplitudes of these envelopes is equal, at the input of one of the relationship detectors 14 or 15 or both simultaneously, signals appear on their outputs that are supplied to one and the other inputs of element And 16, respectively, which opens when they coincide in time. From the output of element And 16, the signals corresponding to the time moments of the simultaneous operation of the detectors of relations 14 and 15 are fed to the input of a temporary discriminator 17, which analyzes them by duration and repetition rate. If the durations and repetition rates of these signals coincide with those specified in the time discriminator 17, they are fed to the input of the decision unit 18, which, after additional logical processing, causes
срабатывание генератора импульсов тревоги 19.Alarm Pulse Generator 19.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU3020461 RU1817119C (en) | 1981-03-30 | 1981-03-30 | Alarm system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU3020461 RU1817119C (en) | 1981-03-30 | 1981-03-30 | Alarm system |
Publications (1)
Publication Number | Publication Date |
---|---|
RU1817119C true RU1817119C (en) | 1993-05-23 |
Family
ID=20928244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU3020461 RU1817119C (en) | 1981-03-30 | 1981-03-30 | Alarm system |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU1817119C (en) |
-
1981
- 1981-03-30 RU SU3020461 patent/RU1817119C/en active
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