RU1783561C - Device for protective signalling - Google Patents

Abstract

The invention relates to burglar alarm systems and can be used to transmit intruder signals, fires, to the command post. An object of the invention is to increase the functional reliability of a device. In block 2, from the outputs of block 10, voice messages corresponding to one or another protected object are recorded in digital form. When the sensor 1 is activated, the voice message from block 2 arrives at the modulator 4 and then through the amplifier 5 of the antenna 6 and 7 to the receiver 9 located at the command post. The received message carries information about the object and nature of the incident. 3 ill.

Description

The present invention relates to alarm technology and can be used to transmit messages on the intruder, fire, and other incidents via radio channel to the receiving point.

Burglar alarm devices with alarm transmission via a radio channel are known. for example, a device containing transceiver equipment at guarded objects and at the central post, as well as a number of special tools that ensure the prevention of information loss, namely: trigger, distributor, driver, frequency selectors, etc. In this device, it is not possible to use means of communication widely used by law enforcement patrols to receive alarms, which complicates the mass use of this device. In addition, this device

characterized by the high cost of subscriber equipment installed at the guarded facility.

An alarm system is also known in which a device for receiving and displaying information is used. The disadvantage of this device is the complexity of the equipment of the central post and the inability to use the standard means of communication of the patrol service to guard objects.

Closest to the technical nature of the present invention is a warning system for the protection of many individual dwellings located within a certain territory, which is a device for burglar alarms. The system has for each protected object a transmitter controlled by a burglar detection device that sends a code signal of this object at a given constant frequency and a central

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receiver with an indication unit, for example, an audio one, operating continuously and tuned to the total frequency of the transmitters

This system is also characterized by the fact that 5 it is impossible to use standard means of communication of the patrol service, designed to receive voice information, rather than digital codes, which limits the functional reliability of the alarm system.

The aim of the invention is to increase functional reliability by ensuring the use of 15 standard communications equipment of the patrol service with voice output of information as part of the alarm system.

The device for burglar alarm contains on each guarded object a sensor defining a generator, the output of which is connected to the first input of the modulator, the output of which is connected to the input of the amplifier, the output of which is connected to the input of the transmitting antenna at the monitoring station, and the receiving antenna, the output of which 25 connected to the input of the receiver, the output of which is connected to the input of the sound indication unit, at each guarded object, a unit for storing and reproducing voice information is introduced, containing three counters, 30 delay element, key, three lementa OR, two AND gates, a constant block memory tsifroa "alogovy converter, two flip-flop, a clock pulse generator, and a voice information recording unit, comprising a microphone 35, an analog-to-digital

converter, key, buffer memory block, two clock generators, two AND elements, three OR elements, two triggers, counter, write pulse generator, 40 At each protected object, the sensor output is connected to the first input of the first OR element, the output of which is connected to the installation input is in the single state of the first trigger, the output of which is connected to the first input of the first AND element, the output of which is connected to the control input of the key and the input of the delay element, the first output of which is connected to the read enable input and a constant 50 memory.

The second output of the delay element is connected to the control input of the digital-to-analog converter, the output of which is connected to the second input of the modulator, the output of the key is connected to the counting input of the first counter, the information output fupp of which is connected to the group of address inputs of the read-only memory unit. The output of the clock generator is connected to the second input of the first AND element and the first input of the second AND element, the output of which is connected to the counting input of the second counter, the overflow output of which is connected to the second input of the first OR element and to the first input of the second OR element, the output of which is connected to the input to the zero state of the second trigger, the output of which is connected to the second input of the second AND element, the overflow output of the first counter is connected to the first input of the third OR element, with the input to the unit ary state of the second flip-flop and counting input of the third counter whose overflow output is connected to second inputs of the second and third OR elements. The output of the third OR element is connected to the zero input of the first trigger. In the voice information recording unit, the installation input, in the single state of the first trigger, is the device recording enable input, the output of the first trigger is connected to the key control input and the first input of the first AND element, the output of which is connected to the input of the recording pulse generator, the first input of the first OR element , a read enable input of a buffer memory unit, and with an information input of a key of a storage and reproduction unit of voice information.

The output of the first clock is connected to the second input of the first AND element, the unit input to the second state of the trigger is the input for enabling the preparation of device data. The output of the second trigger is connected to the first input of the second AND element, the output of which is connected to the clock input of the buffer memory unit and to the second input of the first OR element, the output of which is connected to the counter input of the counter, the group of information outputs of which is connected to the group of address inputs of the buffer memory unit . The counter overflow output is connected to the first inputs of the second and third OR elements, the output of the third OR element is connected to the installation input and the zero state of the second trigger. The microphone output is connected to the information input of the analog-to-digital converter, the group of outputs of which is connected to the group of information inputs of the Key, the group of outputs of which is connected to the group of information outputs of the buffer memory unit and the group of information inputs of the digital-to-analog converter and the group of information outputs of the read-only memory unit a unit for storing and reproducing voice information. The first output of the second clock is connected to the clock input of an analog-to-digital converter. The second output of the second clock is connected to the second input of the second AND element, the output of the recording pulse generator is connected to the write enable input of the read-only memory block of the voice information storage and reproduction unit, the second inputs of the second and third OR elements, the input to zero the counter of the voice recording unit information and the third inputs of the second and third elements OR, the zeroing inputs of the first, second and third counters of the unit for storing and reproducing voice information are combined and are the installation input to the initial state of the device.

As a result of the introduction of new features and the proposed implementation of blocks for recording voice information and storing and reproducing voice information in the device, digital recording and storage of alarm signals in the form of voice information is carried out with the transmission of this information, in the event of an alarm condition, via a radio channel to a central receiving center.

Thus, an automatically operating radio-technical device for burglar alarms with voice notification has been proposed, which increases the reliability of the notification function. A similar property was not found in the known technical solutions.

In FIG. 1 presents the proposed device; Fig. 2 is a functional diagram of a unit for storing and reproducing voice information: Fig. 3 is a functional diagram of a block for recording voice information.

The proposed device (Fig. 1) contains on each guarded object a sensor 1 connected to a unit for storing and reproducing voice information 2, serially connected to a master oscillator 3, modulator 4, the second input of which is connected to the output of block 2, amplifier 5 and a transmitting antenna b, as well as series-connected receiving antenna 7. receiver 8. sound indication unit 9 and voice information recording unit 10.

The unit for storing and reproducing voice information 2 (see FIG. 2) contains counters 11,12,13, delay element 14, key 15, OR elements 16,17,18, AND elements 19,20, read-only memory (BPP) ) 21, a digital-to-analog converter (DAC) 22, triggers 23.24, a clock generator 25. The voice information recording unit 10 (see FIG. 3) contains a microphone 26.

analog-to-digital converter (ADC) 27, clock generators 28.29, key 30, buffer memory unit (BBP) 31, elements I-32.33, elements Ш1И 34.35.36, triggers 5 37.38, counter 39, driver write pulses 40.

On each guarded object, sensor 1 is connected to the first input of the first OR element 16, the output of which is 10 connected to the unit input to the first state of the first trigger 23, the output of which is connected to the first input of the first element AND 19, the output of which is connected to the key control input 15 and the input of the delay element 14, the first output of which is connected to the read enable input of the read-only memory 21. The second output of the delay element is connected to the control input of the digital-to-analog converter 22, the output of which is connected to the the output of the modulator 4. The output of the key 15 is connected to the counting input of the counter 11, the group of information outputs of which is connected to the group of address inputs of the PB5 block of the internal memory 21. The output of the clock pulse generator 25 is connected to the second input of the first element And 19 and to the first input of the second elements 20, the output of which is connected to the counting input of the second

0 counter 12, the overflow output of which is connected to the second input of the first element OR 16 and to the first input of the second element OR 17, the output of which is Key to the input to the zero state of the second 5th trigger 24, the output of which is connected to the second input of the second element And 20. The output of the overflow of the first counter 11 is connected to the first input of the third element OR 18, with the input of the unit

0 state of the second trigger 24 and with the counting input of the third counter 13, the overflow output of which is connected to the second inputs of the second 17 and third 18 OR elements.

5 The output of the third element OR 18 is connected to the input of the zero state of the first trigger 23. In the block for recording voice information 10, the input of the unit is in the single state of the first trigger 37

0 is the write enable input of the device. The output of the first trigger is connected to the control input of the key 30 and the first input of the first element And 32, the output of which is connected to the input of the driver 5 pulses of record 40, with the first input of the first element OR 34, with the input enable reading of the buffer memory unit 31 and with the information input of the key 15 storage and reproduction unit for voice information 2.

The output of the first clock 28 is connected to the second input of the first AND element 32. The unit input to the unit state of the second trigger 38 is the input for enabling the preparation of device data. The output of the second trigger 38 is connected to the first input of the second element And 33, the output of which is connected to the clock input of the buffer memory unit 31 and to the second input of the first element OR 34, the output of which is connected to the counting input of the counter 39, the group of information outputs of which are connected to the group of address the inputs of the buffer memory unit 31. The overflow output of the counter 39 is connected to the first inputs of the second 35 and third 36 AND / 1 AND elements, the output of the third OR 36 element is connected to the zero input of the second trigger 38. Microphone output 26 is connected to the information input of the analog-to-digital converter 27, the group of outputs of which is connected to the group of information inputs of the key 30, the group of outputs of which is connected to the group of information outputs of the buffer memory unit 31 and to the group of information inputs of the digital-analog converter 22 and the group of information outputs of the block read only memory .21 block for storing and reproducing voice information 2, the first output of the second clock

29 is connected to the clock input of an analog-to-digital converter. The second output of the second clock generator 29 is connected to the second input of the second element And 33, the output of the recording pulse generator 40 is connected to the write enable input of the read-only memory block 21 of the voice information storage and reproduction unit 2. ;;;. ,, 4

The second inputs of the second 35 and third 36 elements OR. an input for resetting the counter 39 of the voice information recording unit 10 and the third inputs of the second. 17 and the third 18 elements OR, the inputs of zeroing the first 11, second 12 and third 13 counters of the storage unit and the restored voice in-; formations 2 are combined and are the input of the installation to the initial state of the device ...- ..: -:. .

The proposed device operates as follows. 4 First, before installation on a security object, in block 2, through block 10, voice information is recorded in digital form, which is necessary in order to attract the attention of the operator and identify the object (message about the type of alarm: breaking, fire, security address leased object, etc.).

In case of unauthorized access to the protected object, the sensor 1 is triggered and gives a signal to block 2, by which block 2 goes into the reading mode of information previously recorded in it. The speech information reproduced by block 2 in the form of an electric signal of a low frequency is supplied to a modulator 4. A modulator 4 of the replicates in accordance with the low-frequency

the signal of block 2 changes one or another parameter (amplitude, phase, etc.) of the high-frequency signal generated by the master oscillator 3. The modulated high-frequency signal is amplified by the amplifier 5 and emitted by the transmitting antenna 6. Information recorded in block 2 is reproduced periodically with a pause of a given duration and with a given number of cycles. This provides sufficient on ;.

Reliability of Information Transmission, excludes

rubbed her ne. ;; Е Mfv ;, - :; v L / v .-: - vr, The signal transmitted from the protection of the object is received at receiving antenna 7, receiver 8 and is reproduced in the form of speech

signal unit 9 sound indication.

Since information about the alarm and the place of the protected object is transmitted in the form of speech, messages can be installed at the receiving end of the radio line with standard communication equipment that is in operation in the relevant authorities and is focused on the reception of voice messages. Conventional tape recorders can be used for documentation. . (

Let us consider in more detail the operation of information recording, storage and reproduction units in all operating modes. ; In the process of recording information in the storage and reproducing unit 2, the joint operation of the unit 2 and is ensured. 10.

To provide the process of recording information directly by means of controls by applying a signal Initial, position 1 blocks

37,38,39 are set to the initial position, and a data preparation command is sent to trigger 38 (see Fig. 3). The information to be recorded is pronounced by the operator in front of the microphone 26 obtained

electrical signal is supplied to analogs

Digital Converter 27. At the same

clock converter 29

samples are triggering pulses. Upon the arrival of each pulse of the ADC 27

converts the instantaneous value of a signal to a digital code. The digital code from the converter 27 enters through the key 30 to the data bus of the buffer memory unit 31. The write address of the buffer

a memory unit 31 is formed by a counter 39,

the input of which through circuits 33 AND 34 OR receives pulses from a clock generator of 29 samples. The same generator with the necessary delay relative to the pulses triggering the ADC} provided by the generator 29 itself, generates recording pulses on the block 31. The process of recording information in block 31 ends with the overflow of counter 39. The overflow signal of counter 39 goes to trigger 38 and sets it to its original position, thus closing circuit 33 I. This completes the stage of preparing data for recording in storage and playback block 2.

In order to ensure overwriting of data from the buffer block 31 of the memory to the block 21 of the read-only memory of block 2, they are connected to the block and commands are sent using external organs to the initial position, which is sent to blocks 37.38.39 (see Fig. 3) blocks 11,23,24,12 and 13 (see. Fig.), and Record on the trigger 37 (see Fig. Z).

The Write command transfers the trigger 37 from the initial position to one, the signal from the trigger 37 is supplied to the key 30, which disconnects the analog-to-digital converter 27 from the data buses of block 31, opens the And circuit 32, and thereby ensures the passage of pulses from the clock generator 28 through OR circuits 32 and 34 to counter 39, as well as the same pulses as read pulses to block 31, count pulses to block 2 (bus c). Shaper 40 generates delayed write pulses on BPP 21 of block 2 (bus b). The count pulses are transmitted via a manually controlled key 15 (see FIG. 2) to the counter 11, which generates an address code on the read-only memory block 21. Information is read out from the read pulses 31 from the block 31 via the data bus and is input block 21, and is entered into it upon the arrival of a recording pulse from block 40 (bus b).

In this way, the information is sequentially rewritten from the BPP 31 to the read-only memory 21. The rewriting process continues until the information is copied to all addresses of block 31 to block 21. Upon completion of the rewriting, the overflow signal of counter 39 sets the trigger 37 to its initial position.

Consider the process of reproducing voice information by block 2. According to the signal from the sensor 1 ающего arriving through the OR circuit 16 to the trigger 23, the latter is set to a single position and opens the 19 I circuit. In this case, the clock pulses 25 through the 19 I circuit and the key 15 are sent to the counter W and delayed in

block 14 as read pulses on the BPP 21. The digital information read from the BPP 21 is fed to a digital-to-analog converter 22, which reproduces the instantaneous values of the recorded signal in analog form. Thus, all values of the previously recorded speech signal will be reproduced, and therefore, at the input of the modulator 4, a signal corresponding to the signal at the input of the microphone 26 during recording will act.

The time interval for transmitting a speech signal is determined by the capacity of the counter 11 and the clock frequency of the generator 25. The overflow signal of the counter 11 returns the trigger 23 to its original position and simultaneously sets the trigger 24 to a single position. From this moment, the And circuit 20 opens and passes the pulses of the generator 25 to the counter 12 (pause formation). The duration of the pause will be determined by the capacity of the counter 12 and the frequency of the generator 25. The overflow signal of the counter 12 will return the trigger 24 to its original position and at the same time will reset the trigger 23 through the circuit 16 OR to a single position, thus ensuring re-reading. Further, the process of reading and reproducing voice information will be periodically repeated; moreover, the number of playback cycles will be determined by the capacity of the counter 13, which starts at the end of the playback interval of the recorded voice information and counts the number of transmission cycles. The counter overflow signal 13 sets the flip-flops 23 and 24 to their initial position and thus stops the transmission of signals.

Thus, in comparison with the known technical solutions, the proposed device has increased functional reliability due to periodic voice warning of danger,

Due to the fact that the proposed device uses the transmission of information by a speech signal, that is, a signal for the reception of which a wide range of the most common receiving devices in use can be used, very favorable conditions are created for the mass implementation of the proposed security alarm system .

It should also be noted that the equipment installed at the guarded object is simple to implement, and the voice information recording unit is common to all guarded objects.

Claims (1)

SUMMARY OF THE INVENTION A device for burglar alarms, comprising, on each guarded object, a sensor defining a generator, the output of which is connected to the first input of the modulator, the output of which is connected to the input of the amplifier, the output of which is connected to the input of the transmitting antenna, in the control station, the receiving antenna the output of which is connected to the input of the receiver, the output of which is connected to the input of the audible alarm unit, characterized in that, in order to increase functional reliability, a unit is entered into the device at each guarded object storage and reproduction of speech information containing three counts, a delay element, a key, three OR elements, two AND elements, a read-only memory unit, a digital-to-analog converter, two triggers, a clock generator and a voice information recording unit, holding microphone, analog-to-digital converter, key, buffer memory unit, two clock generators, two AND elements, three OR elements, two triggers, counter, recording pulse generator, on each protected object the sensor output is connected to the first input of the first of the first OR element, the output of which is connected to the unit state of the first trigger, the output of which is connected to the first input of the first And element, whose output is connected to the control input of the key and the input of the Delay element, the first output of which is connected to the read permission input memory, the second output of the DELAY element is connected to the control input of the digital-to-analog converter, the output of which is connected to the second input of the Modulator, the key output is connected to the counting input of the first counter, groups and the information outputs of which are connected to the group of address inputs of the read-only memory block. the clock generator is connected to the second input of the first AND element and to the first input of the second AND element, the output of which is connected to the counting input of the second counter, the overflow output of which is connected to the second input of the first OR element and to the first input of the second OR element, the output of which is connected to the input zeroing the second trigger, the output of which is connected to the second input of the second AND element, the overflow output of the first counter is connected to the first input of the third OR element with the unit input in the second state about the trigger and with the Counting input of the third counter, the overflow output of which is connected to the second inputs of the second and third OR elements, the output of the third OR element is connected to the zeroing input of the first trigger, in the voice information recording unit, the unit input to the single state of the first trigger is the enable input recording device, the output of the first trigger is connected to the control input of the key and the first input of the first element And, the output of which is connected to the input of the recording pulse generator, with the first input of the first element that OR, with the enable input for reading the buffer memory unit and with the information input of the key of the unit for storing and reproducing voice information, the output of the first clock generator is connected to the second input of the first element AND, the input to the unit state of the second trigger is the input for enabling the preparation of device data , the output of the second trigger is connected to the first input of the second AND element, the output of which is connected to the clock input of the buffer memory unit and to the second input of the first OR element, the output of which is connected to we enter the counter, the rpynrta of the information outputs of which is connected to the group of address inputs of the buffer memory unit, the counter overflow output is connected to the first inputs of the second and third OR elements, the output of the third OR element is connected to the zero input of the second trigger, the microphone output is connected to the information the input of an analog-to-digital converter, the group of outputs of which is connected to the group of information inputs of the key, the group of outputs of which is soy Diyen with the group of information outputs of the buffer memory unit and with a group of information inputs of a digital-to-analog converter and a group of information outputs of a read-only memory block of a voice information storage and reproduction unit, the first output of the second clock generator is connected to the second input of the second element I. The output of the recording pulse generator is connected to the clock input of the analog-to-digital converter, the second output the second clock generator is connected to the second input of the second AND element, the output of the recording pulse generator is connected to the recording enable input of the constant block the memory block of the storage and reproduction of voice information, the second inputs of the second and third elements of OR, the input of zeroing the counter of the block of recording of voice information and the third inputs of the second and third elements of OR, the zeroing inputs of the first, second and third counters of the block are input to the device - storage and reproduction of speech and initial state, formations are combined in Original From far / half time required ri g t / gx. nOJt I Tdd