SU1356830A1 - Alarm device - Google Patents

Abstract

The invention relates to an alarm device and can be used to signal an intrusion into a guarded object, such as an automobile. The aim of the invention is to increase the functional reliability of the device. When the doors of the car are opened, one of the sensors of group 11 is closed and the winding 7 of the relay 6 is connected via closed contacts 5 to the power supply 15. Pin 10 closes and the buzzer turns on. To turn off the alarm or prevent its activation, it is necessary to apply a magnetic field to a group of 21 contacts. In this case, the supply voltage through the open transistor 22 connects to the windings 3 and 8 of relays 1 and 6 and contacts 5 and 10 open. The impact of a magnetic field at the same time on two groups of 21 and 23 contacts is not included. signaling, since the transistor 22 remains closed. 1 silt about ggila tazh-h-g

Description

I

The invention relates to devices for tripod alarm and can be used to signal the penetration of a protected object, such as a car.

The purpose of the invention ow etc increase the functional reliability of the device,

The diagram shows the functional scheme of the device.

The device contains the first relay 1 with windings 2 and 3 and disconnecting 4 and closing 5 contacts, the second relay 6 from winding fi 7 and 8 and opening 9 contacts and closing 10 contacts a group of 11 contact sensors, switch 125 lamp 13, capacitor.14 power supply 15, capacitor 16j diode 17g, pnp transistor 18g, resistor 199, buzzer 20, group 21 in series switched on magnetic control P11x contacts ,, pnpp transistor 22, group 23 in parallel of the magnetically controlled contacts, resistor 24, diode 25,

The windings 2 and 7 of relay 1 and 6 are designed to unlatch contacts 4 and 9 and to close the contacts 5 to 10, the windings 3 and 8 of relay 1 and 6 are designed to bring the contacts into the initial state o

The device works as follows

In the initial cocTOHHHHj, when all the doors of the protected object, for example, a car, are closed, 5 all contacts of the group of 11 contact sensors are open,. When the switch 12 is set to position b, the signal Q is turned on to the lamp 13 and the capacitor 14 is charged up to the voltage of the power supply 15. The voltage in the lamp 1-3 is supplied through the disconnecting contacts 4 of relay 1. When a protected object exits, when one of the doors opens, one of the contact sensors of group 11 is closed. At the same time, the capacitor 16 is charged to switch Q 12, diode 17 and closed sensor of group I. Transistor 18 is closed because the base of this transistor is connected to the negative terminal of source 15 of the device through a closed contact sensor of group 11 “Diode 17 prevents condensate discharge 16 h cut ezistor 19o

35

55

When the last of the contact sensors of group 11 opens, what happens when the last door of the protected object is closed, open it with transistor 18, because its bcc is connected to the positively charged plate through resistor 19, and the emitter to negatively charged Capacitor plate 16, which is discharged through the winding 2 of relay 1 and the open transistor 18, contact A opens and the contact 5 closes, the lamp 13 goes out, indicating that the device is in protection mode. In this state, the current device e does not consume

. Closing one of the contacts of the sensors of group 11, which occurs when the doors, trunk or hood are opened, immediately triggers the buzzer 20, since the coil 7 of the relay 6 through the closed contact 5 of relay 1 and the closed contact sensor of group 11 is connected to the negative terminal of the source 15 nutrition Relay switching occurs b. Its contacts 10 are closed and the vehicle alarm 20 is switched on, and contacts 9 are opened. Therefore, setting switch 12 to the position and does not stop the operation of the sound signal. Disconnecting the power supply 15 after switching the relay 6 (after the alarm has been triggered) does not affect the state of its contacts. Contacts 10 remain

Q Q

five

-1i are closed, and after turning on the power, the sound signal starts to work again.

To turn off the alarm, a magnetic field should be applied to a group of 21 series-connected magnetically controlled contacts. Under the influence of a magnetic field, the contacts of the group 21 are closed, connecting the emitter of transistor 22 to the power supply source terminal 15. The transistor 22 opens, and the source voltage. 15, the power supply or the charged capacitor t4, through the open transistor 22 is supplied to. windings 3 and 8 relays 1 and 6 respectively, which in turn are switched by returning

device in its original state.

A group of 23 parallel-connected magnetic contacts prevented. turns off the alarm in case of exposure to both groups 21

. 3135fi830

23 magnetically controlled contacts with a magnetic field, since all the magnetically controlled contacts are amyked, connecting the base and emitter of the ranzistor 22 and preventing it from sticking.

tang to

You will be given a pair of goods and services, as a result of a series of goods,

Claims (1)

Claims An alarming device comprising two double-wound relays, each having one pair of I-fold contacts, the first terminal of the second winding of each relay is connected to the negative terminal of the power supply, the second terminal of the second winding of the first relay connected to the second winding of the second winding of the second relay, the positive terminal of the power supply is connected to the nepBONjy audio alarm, the second terminal of which is connected to the negative terminal through the closing contacts of the second relay power supply terminal, the first resistor, the first terminal of which is connected to the first terminal of the first capacitor, the second terminal of which is connected to the anode of the first diode, the cathode of which is connected to the first terminals of a group of contact sensors, the second terminals of which are connected to the negative terminal of the power source, the second diode the cathode of which is connected to the first terminal of the lamp, pnp and ppn ranzistora, switch, characterized in that, in order to increase the functional reliability of the device introduced group consistently included and a group of parallel-connected magnetic contacts, the second resistor and the second condensate. torus, positive source terminal mon five 0 five 0 five 0 tani is connected with the first podnev1gzh 1st contact switch, movable the contact of which is connected to the first terminal of the second capacitor, to the first terminals of the first relay windings, to the first terminals of the first resistor and the first capacitor, to the first terminals of the groups in series and in parallel with the magnetic contacts and to the anode of the second relay the diode, the second terminals of the group of parallel-connected magnetically controlled contacts are connected to the base of a pnp transistor and to the first1) 1M of the second resistor, the second terminal of which is connected to the negative glue My power source, the second terminals of the group of successively included magnetic contacts are connected to the emitter of a pnp transistor, the collector of which is connected to the second leads of the second windings of the first and second relays and through the opening contact of the second relay is connected to the second fixed contact of the switch the second terminal of the first resistor is connected to the cathode of the first diode and through the closing contacts of the first relay is connected to the second output of the first winding of the second relay, the second output of the first winding of the first relay It is connected to a capacitor of a pnp transistor, the base of which is connected to the second terminal of the first resistor, and the emitter is connected to the second terminal of the first capacitor and the anode of the first The diode, the second terminals of the second capacitor and the lamp are connected to the negative terminal of the power supply. Editor T. Loshkareva Compiled by A. Zinkov, Tehred MoHodanich Proofreader L. Pilipenko Order 3438 Circulation 308 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow Zh-35, Raushsk nab., d.A / 5 Production and printing company, Uzhgorod, Projecto st., A