摘要:
A flashlight for alarm systems includes a light source containing at least one light emitting diode and a circuit which controls said light source. The circuit has a feed supply, a current converter, and flash control device. The current converter, the light source, and the flash control device are connected in series. The current converter includes a control unit, an inductor, an induction stop, and a resistor which are connected in series. The flash control device includes at least one switch for actuating the light source and a microprocessor for controlling the at least one switch.
摘要:
In the monitoring system which is intended for buildings, rooms and objects a multitude of measuring or detecting and signaling stations are series connected to a central signal station. Each of the detecting and signalling stations transmits information about its instantaneous state, which may be any one of standby, warning, alarm, malfunction, to the central signal station by means of an electronic circuit member. The electronic circuit member affords the following advantages: identification of the number and of the location of the detecting and signalling station in the case of changes in the state of the detecting and signalling station; detection and localization of malfunctions such as a short-circuit or an interruption in the signal line; cut-off of the short-circuited signal line section from the remaining signal line; saving of installation expense; greater flexibility in the evaluation of the states of the detecting and signalling stations and in the initiation of appropriate measures or counter-actions; operation of control devices via the signal line; monitoring of the electronic circuit member.
摘要:
A flashlight for alarm systems includes a light source containing at least one light emitting diode and a circuit which controls said light source. The circuit has a feed supply, a current converter, and flash control device. The current converter, the light source, and the flash control device are connected in series. The current converter includes a control unit, an inductor, an induction stop, and a resistor which are connected in series. The flash control device includes at least one switch for actuating the light source and a microprocessor for controlling the at least one switch.