RU1771537C - Self-contained alarm and telephone communication device - Google Patents

Description

1

(21) 4777505/09 (22) 02.01.90 (46) 10.23.92. Bull. No39 (75) S.A. Kozak (73) S.A. Kozak

(56) UK Application No. 1503006, cl. H04M 11/06, 1978.

(54) AUTONOMOUS TELEPHONE COMMUNICATION DEVICE AND ALARM SIGNAL PHONE

(57) The device relates to telephone communications and signaling. The goal is to increase reliability by being able to monitor the state of the communication line. The device comprises at the central station (CA) 1 a first power supply 4, a first telephone set (TA) 6, a control unit 7, a first and second indicator lamp 8 and 9, an indication unit 10, a first diode 11, a first make contact 13, a first button 14. The guarded station (OS) 2 contains a second power supply 5, a second telephone 15, a third and a fourth indicator light 16 and 17, a signaling device 18, a second diode 19, a second make contact 20, a second button 21. CA 1 and the OS 2 are connected by a communication line (L C) 12. An alarm unit 3 is connected to OS 2. The goal is achieved by the fact that the introduction of diodes with an appropriate connection does not allow voice signals from telephones to be shorted to sources 4 and 5, as well as the fact that on DS 1 it is possible to monitor the availability of power on OS 2, which indicates the health of L 12 The enhanced functionality is provided by the ability to simultaneously conduct a conversation and transmit an alarm. 1 ill.

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The device relates to communication technology and can be used both for autonomous negotiations of subscribers without using a city telephone line, and for protecting various objects (apartments, dachas, etc.) and receiving signals from alarm sensors (fire, flood, etc.) by alarming in the form of light and sound alarms.

Devices are known in the art for negotiating between two subscribers (A.S. Nfe 1386051, 1984, CL N 04 M 9/08; A. S. No. 1317686, 1986, CL N 04 M 9/08; A. S. No. 1397205, 1986. class. N 04 C 11/06), alarm devices are also known (A.S. No. 775737, 1978, class. C 08 V 25/00).

Devices are also known in which both the possibility of making telephone communication between subscribers and the possibility of delivering an alarm signal are combined in a complex.

So, for example, a device for burglar alarms (AS No. 699634, class G 08 V 25/02, 1978), is designed to transmit alarm messages from protected objects via a subscriber telephone line and contains a power supply unit, an alarm unit, and a control unit Alarm block, subscriber telephone line. The alarm unit is based on a normally closed relay contact and an LED with a resistor.

In this device, it is not possible to quickly control the disconnection of the communication line, its functionality is limited, since there is no self-blocking in the event of a short-term signal on the monitored sensor.

A device for alarming over telephone lines is also known (A.C. Ms 103427, class H 04 M 11 / 04.1955).

The known device comprises sensors installed in the room and connected to a subscriber telephone line, means for reproducing alarms made on the basis of an electromagnetic relay connected to the subscriber line via normally open sensor contacts, acoustic and optical signaling devices.

The known device has a number of disadvantages, namely, it is possible to issue an alarm only to the on-call subscriber, there is no possibility of simultaneous transmission of colloquial speech and alarm, there is no control of a break in communication lines, there is no self-lock in the case of

short-term signal on the controlled sensor.

Closest to the technical nature of the proposed invention is the device described in UK application No. 1503006, class. H 04 M 11/04, 1978. The known device contains a subscriber station, equipped with alarm devices, a set

0 resistor circuits and corresponding switches, subscriber unit,

The known device has a number of drawbacks, namely, there is a very complex set of resistor circuits and switches to them, it is necessary to make difficult adjustments for each sensor, and there is no possibility of simultaneous transmission of colloquial speech and alarm. The aim of the invention is to expand the functionality of the device, increasing its reliability and ease of use.

The goal is achieved in that the device is a stand-alone telephone

5 alarm, containing a central and a guarded station connected by a communication line, and the central station contains a first power source, a control unit and a first telephone

0 apparatus, and the guarded station contains an alarm unit connected by the first and second output parallel to the second telephone apparatus, characterized in that, in order to increase reliability by

5, the ability to monitor the status of the communication line, the central station contains in series a first make contact, an indication unit, a first diode, a first indicator lamp and a first

0 resistor, the second output of which is connected to the first input of the control unit and the first wire of the communication line, the second wire of which is connected to the first output of the control unit, the first output of the first

5 of the telephone and through the first button with the second output of the first telephone, the third wire of the communication line, the positive pole of the first power source and the second input of the control unit, the second output of which is connected to the display unit and the anode of the first diode, the cathode of which is connected to the second wire a communication line, the fourth wire of which is connected to a chain of in series

5 connected a second resistor and a second indicator lamp, the second output of which is connected to the positive pole of the first power source, and the first output of the second resistor through the first NC contact is connected to the negative pole of the first power source, and the guarded station contains a series-connected signaling device, a second diode, a third an indicator lamp and a third resistor, the second output of which is connected to the third wire of the communication line and the third output of the alarm unit, the fourth output of which is connected to the second wire of the communication line, the second output of the signaling device and through the second make contact with the negative pole of the second power source, the positive pole of which is connected to the first output of the signaling unit and through the second button with the fourth wire of the communication line, and through the fourth indicator lamp connected in series and the fourth resistor is connected to the fourth output of the signaling unit, the second telephone being connected to the first and fourth wires of the communication line, and the fourth wire of the communication line connected to cathode of the second diode.

Owing to the interconnection of the central station and the guarded station via a cross-sectional communication line, the simplification of the circuit of all devices is ensured, since it is possible to mirror the construction of transceiver devices; the introduction of a decoupling diode into the device with an appropriate connection does not allow the positive modulating speech signal from the micro-telephone devices to be closed through the display unit to a negative potential, which increases the clarity of speech, reliable operation and ensures the inclusion of the display unit at any time, i.e. simultaneously transmitting an alarm signal and a telephone conversation, which extends the functionality of the device.

Thanks to the introduction of a link disconnection monitoring unit between the central and the guarded station, the signal is monitored, which increases the reliability of the device.

The proposed device is illustrated in the drawing, which shows its functional diagram with an example of a specific implementation of functional units.

The device comprises a central station 1 (CA), a guarded station 2 (OS), an alarm unit 3 (5C), which serves to receive and convert external signals from sensors. Each station contains power supplies 4 and 5, made in the form of modules.

 The device 1 comprises a handset 6, a control unit 7 for monitoring disconnection of the wires of the communication line,

LED 8 for monitoring the signal output Call, LED 9 for receiving a ringback signal (Answer call), display unit 10 for issuing sound and light indications and connected by one terminal via a decoupling diode 11 to the second wire of the communication line 12 and the other terminal to the fourth wire of the communication line 12, the toggle switch 13 On to turn on the device 1 and the Call button 14 to call the subscriber of the device 2.

The device 2 also includes a micro-telephone device 15, an LED 16 for Call and an LED 17 for Answer. call, display unit 18, connected by one terminal through a decoupling diode 19 to the fourth wire of communication line 12, and the second terminal to the second wire of communication line 12, toggle switch 20 On and call button 21.

There are two operating modes of the proposed device: Phone and Signal.

Phone mode. When the toggle switch 13 on the device 1 is turned on and the positions of the remaining switches corresponding to the drawing are turned on, the negative voltage (- power supply unit 4) of the central station (device 1) turns on the control light indication 8 - The call and the same negative potential are received through the fourth wire of the communication line 12 to the device 2 and turns on the call signal light 17 (in this case, the positive potential comes constantly through the third wire of the communication line 12 from the device 1 - power supply unit), and by pressing the button 14 of the device 1 after A positive potential is sent along the second wire of the communication line 12 to the display unit 18 (the negative potential is already on the fourth wire of the communication line 12 - see above - through the decoupling diode 19 from the device 1 - power supply unit 4 -).

The caller (device 2) turns on its toggle switch 20 On in response to the call of the first subscriber, including the control light indication 16 The call is on and the light indication 9 Ans. a call to the called party (device 1J. After that, a serial telephone communication is established through the micro-telephone device 6 and 15 along the circuit: + power supply unit 4 (device 1) - micro-telephone 6 - second wire of the communication line 12 - device 2 - toggle switch 20 - - power supply unit 5 - + power supply unit 5 - microphone telephone 15 - fourth wire of the communication line 12 - device 1 - toggle switch 13 - power supply unit 4.

A wire conversation has been established.

After the conversation ends, the toggle switch 13 on the device 1 and the toggle switch 20 on the device 2 are turned off. At the same time, the 8.17 and 16.9 bulbs go out.

Signal Mode. Before switching to the Signal mode, it is necessary to establish a connection using the Phone mode indicated above. Then turn on the control unit 7 on the device 1, i.e. Signal mode is set. In this case, the control unit is triggered by the following circuit: the positive potential (+) of the power supply unit 5 of device 2 is fed through the first wire of the communication line 12 to the device 1 of the control unit 7, and the negative potential (-) of the power supply unit 5 of the device 2 via the toggle switch 20 on the second wire of the communication line 12 to the output. 1 of the control unit 7. In the event of a disconnection of the communication line 12 or a voltage failure on the device 2, the control unit 7 is de-energized. In this case, the positive potential (+) of the power supply 4 through the input. 2 control units 7 are supplied to the outputs. 2 of this unit and further to the display unit 10, which is triggered (a negative potential is already present on the display unit 10 from the power supply 4 through the toggle switch 13). At the same time, an audible (or light) indication appears on the central PSTN of an autonomous telephone communication alarming signaling (SIGNOPHONE).

The proposed device in comparison with the prototype has wider functional capabilities, provides the possibility of both voice transmission between two subscribers in the Phone mode, detection and transmission of an alarm signal in the Signal mode, and simultaneous transmission of speech and alarm signal in the Signal mode, provides detection violation (or disconnection) of the communication line, which increases the reliability of the device, while the proposed device has an extremely simple circuit.

Claims (1)

The claims An autonomous telephone communication and alarm device comprising a central and secure station connected by a communication line, the central station comprising a first power supply, a monitoring unit and a first telephone set, and a secure station containing an alarm unit connected Compiled by Tehred M. More Editor G. Welsk the first and second outputs parallel to the second telephone apparatus, characterized in that, in order to increase reliability by providing the possibility of monitoring the state of the communication line, the central station comprises serially connected first make contact, an indication unit, a first diode, a first indicator lamp and a first resistor; the second terminal of which is connected to the first input of the control unit and the first wire of the communication line, the second wire of which is connected to the first output of the control unit, the first output of the first telephone and through the first button - with the second output of the first telephone, the third wire of the communication line, the positive pole of the first power source and the second input of the control unit, the second output of which is connected to the display unit and the anode of the first diode, the cathode of which is connected to the second wire of the line zi, the fourth wire of which is connected to a chain of series-connected second resistor and second indicator lamp, the second terminal of which is connected to the positive pole of the first power source, and the first terminal of the second the resistor through the first NC contact is connected to the negative pole of the first power source, and the guarded station contains a series-connected signaling device, a second diode, a third indicator lamp and a third resistor, the second terminal of which is connected to the third wire of the communication line and the third output of the signaling unit, the fourth the output of which is connected to the second wire of the communication line, the second output of the detector and through the second make contact with the negative pole of the second power source, the positive pole which is connected to the first output of the signaling unit and through the second button to the fourth wire of the communication line, and through the fourth indicator lamp and fourth resistor connected in series to the fourth output of the signaling unit, the second telephone connected to the first and fourth wire of the communication line and the fourth wire of the communication line is connected to the cathode of the second diode. Proofreader E. Paple