SU970412A1 - Device for speech warning of emergency situations - Google Patents

Description

(54) DEVICE FOR VERBAL PREVENTION OF EMERGENCY SITUATIONS

one

The invention relates to an automatic alarm system and can be used on any objects where it is necessary to notify about the presence of emergency situations.

Voice alarm devices are known to indicate that an emergency situation exists at a facility, containing a logic unit connected via a magnetic switch with a winding of a power supply voltage relay, sensors connected to a tape drive mechanism equipped with an electric motor 1.

The closest technically is a device comprising a comparison unit, the output of which is connected to one input of the stop unit and the rewind and playback unit, alarm sensors and the reverse unit 2.

The disadvantage of this device is the constructive complexity of using several magnetic heads with drives to move them across the tape, which makes it difficult to manufacture and use the device in production, and the device does not allow to simultaneously receive signals from several alarm sensors, which reduces the promptness of warning of emergency situations and the number of connected sensors is limited by the number of magnetic heads and the tape width, which reduces the total number of monitored objects.

The purpose of the invention is to simplify the design of the device by minimizing the number of magnetic heads with their movement drives, ensuring their immobility, as well as increasing the efficiency of the device.

Claims (2)

This goal is achieved by the fact that the proposed device for voice warning of emergency situations, comprising a comparator unit, the output of which is connected to one input of the stop unit n of the rewinder unit and reproducing unit, alarm sensors and reverse unit, a reversible counter, a decoder and a memory unit are entered, a reversing counter and a decoder are connected 39 in series between the output of the rewind and playback unit and the first input of the comparator unit; the reverse unit is connected in series between the output of the disinfector and to the other inputs of the stop unit, the inputs of the memory unit are connected to the outputs of the emergency sensors AND the output of the comparison unit, a. the output of the memory unit is connected to the second input of the comparison unit. In the drawing P {tvedena functional diagram of the proposed device. The device contains emergency sensors 1 connected to the inputs of memory block 2, comparison unit 3, decoder 4, reverse unit S connected to stop unit 6, rewind and playback unit 7, reversible counter 8. The device operates as follows. Before starting work, phonograms containing information on taking immediate measures to eliminate emergency situations are recorded on the first track of a magnetic tape, and on the second track there are counting pulses located between the phonograms. The tape is set in the initial position. In case of emergency situations, signals from sensors 1 of emergency situations are sent to memory block 2, which supplies these signals to the input of comparison unit 3. Comparison unit 3 compares the signals received by decoder 4 and memory unit 2 and, if there is a discrepancy, generates a signal for switching on rewind and playback unit 7 to search for the necessary sound track. At this, from the magnetic tape with a bi-track magnetic head, the second channel reads the counting pulses fed to the reversible counter 8 and through the decoder 4 to the comparison unit 3 and the reverse unit 5. The coincidence of the number of counting pulses with the emergency sensor number indicates that the desired phonogram has been found. In this case, the comparison unit 3 generates a signal arriving at {shock 2 of the memory, which puts the memory element of the sensor into the initial state at stop 6, stopping rewind and to rewind and replay unit 7, which starts reproducing the found sound track. The force and transmission of information to the object from which an alarm signal was received about the emergency situation is produced by speech amplifiers (not shown in the diagram). A counting pulse, which passes at the end of a phonogram, arrives at block 3 of a comparison, which forms a signal at block 6, stopping the reproduction of a phonogram. If several alarms were initially sent to memory 2, in this case, the next track is searched, similarly to the previously described one, and the direction of rewinding of the magnetic tape remains the same. If the magnetic tape is rewound to the extreme position and the signals from the decoder 4 and memory block 2 do not match, the signal from the decryptor 4 simultaneously arriving at the reverse unit 5 generates a signal to the stop unit 6, stopping the rewind of the magnetic tape, and translates the block 5 reverse in the opposite direction. After that, the rewinding of the magnetic tape occurs in the opposite direction until the signals from the decoder 4 and the memory block 2 match, which indicates that the desired sound track is found. Further operation of the device is similar to the above. The tested devices showed high reliability of search and reproduction of the required speech information and transmission to the objects in order to take the necessary measures to eliminate emergency situations. Sensors are connected to the device to control the limiting pressures of compressed air in the injection lines of pneumatic automation systems, pressure in disk filters, levels in the steam tank, in diffusion juice collectors, etc. In addition to speech warning of emergency situations, the device can be widely used for training in safety cabinets of specialists of various professions as a search and information system for collective use and other purposes. Invention device for speech warning of emergency situations containing a comparison unit, the output of which is connected With one input of the stop unit and the rewind and playback unit, emergency sensors and a reverse unit, characterized in that Reset counter, decipher and memory block, reversive counter and decoder are connected in series between the output of the rewind and playback unit and the first input of the comparison block, the reverse block is connected in series between the output of the decoder and the other input of the stop block, inputs the memory unit is connected to the outputs of emergency sensors and the output of the comparison unit, and the output of the memory unit 5 is connected to the second input of the comparison gunner. Sources of information taken into account in the examination 9704126 1. Copyright certificate of the USSR N 4078) 4, cl. G 08 In 21UOO, 1971. 2. USSR author's certificate N 402893, .kl. G 08 B 21 / O5, 1971 (prototype).