SU22531A1 - Alarm device - Google Patents

Description

In alarm devices designed to communicate with the guard of premises with separate posts and to receive a return signal while the station is operating if the line is damaged, they use commonly known combined electrical or fixed current signaling circuits received from the lighting network through a transformer the use of shuntable blender buttons as feedback signals.

The present invention, the schematic diagram of which is shown in the drawing, using electrically interconnected signal circuits, of which one blender according to a direct current circuit is connected to one circuit to control the integrity of the linear wiring, and another blender is connected to another circuit according to the working circuit current to control the presence of a short circuit in the line wiring, aims to trigger an alarm when the first circuit is broken, and in the use of both circuits in the transmitter, a contact device is used, serving simultaneously to close the second circuit. In this case, in series with the blender of the second circuit located at the receiver, the blender of the transmitter is turned on to receive the return signal.

The device consists of the following installed in the protected places of signaling devices: fuses /, / i. powered by alternating current from the electrical network of the lamp 2, transformer 3 with the output from the midpoint, shunt resistances 4, 4, gate valves 5.5, Bose 5 fuses 5, b, electric bell 7, two-way switch 8, local battery 9 and handset 10 serving, the receiving station, and the pushbutton switches / 7, 7/1 without arresting, calling blenders 12, 72i, receptacles 75, 73i, and the portable telephone handset J4, which serves for triggering alarms. The intermediate lamp 2, which supplies the transformer, does not light up under normal conditions, and when a secondary winding is shunting it with a weak filament filament.

To obtain a normal signal, it is necessary to press the button of the switch 77. The current in the linear circuit will be sent from transformer 3 through resistance 4, fuse b ,. through the contacts to the blenker 72, through the wire 75 to the fuse BG, bell 7 and the calling valve 5i. When the button is pressed, a break in the shunt circuit, call valve 5 and closure of the bell and valve 5i is obtained. Signals 7-5i-5 are simultaneously received. The closure of the current through the call valve 5 procIsET through the midpoint of the transformer.

To talk with the post, it is necessary to insert the plugs of the handset 14 into the socket, yes 13, at the station turn the knob to the contacts / -s or the 2nd one depending on the distance of the post; to improve audibility and noise removal and to remove the phone fO to talk. At the end of the call, the switch is turned off, and at the position of the plug of the handset is removed and the handset is put in the pocket. The return signal is produced by closing the circuit: battery 9 - {-, 2nd contact of switch 8, fuse 6, power socket J3, microphone /, ground. The return circuit is closed with earth via the telephone fO.

Blenker shows receiving sig: at station. When the button is pressed, measles attracts doors and in the window a red signal appears.

In the event of a break of the signal shunt wire, one of the valves Sj, By, Bg and bell 7 will be closed, along which the alarm signals should be received. To open the valve 5, it is necessary to put the blenker window on the contact Ki and close the door. When the signal wire / 5 is grounded, the current path is received: B, D) and bell 7, and in order to receive signals

closure valves Sj and Vz should be put on the contacts Ka and K.

Thus, alarms and conversational communication, in the event of line damage, are deemed to be secured. Signal line grounding does not affect conversations with posts and does not affect the sending and receiving of alarms at the station.

The subject matter of the invention.

A device for alarming the use of electrically interconnected signal circuits, of which a blender of a direct current circuit is included in one circuit to monitor the integrity of the line wiring, and another circuit has a second blender of an operating current circuit to control the presence of short short circuits in linear wiring, characterized by the use in the transmitter, in order to use your two circuits to give an alarm, contact device, service, when giving a signal to break the first circuit and simultaneously but for closing the second circuit, wherein the series with this blenker CSIP, which is provided at the receiver, the transmitter is turned blenker to obtain the return signal. to copyright certificate IT. V. Gitselova 22531

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