SU892459A1 - Multipoint indication device - Google Patents

Description

(54) DEVICE FOR MULTIPOINT SIGNALING SIGNALS

The invention relates to alarm systems for multipoint monitoring of objects with signal storage and audible alarm and can be used in emergency and process monitoring of objects. A device for multipoint signaling is known, which contains a common acknowledge switch and a pulse generator connected in parallel to a call and connected through an IL element to individual cells containing sequentially connected technological contacts of the sensor, thyristors and a signal lamp connected through the second element OR and the generator open contact with the minus power bus, the thyristor electrodes are controlled through resistors and behind the scraper (all contacts of the acknowledge switch are connected to the common bus bar, The generator power supply terminal is connected to, the anode of the starting thyristor, whose cathode is connected to the negative bus through the opening contacts of the feedback switch, and the control electrode is connected to the positive bus through the resistor, capacitors and process contacts I. The closest to the proposed technical essence is A device for multipoint signaling containing signaling cells with short-circuiting contacts of sensors connected to diodes and signal lamps connected to the cathode of the thermistors and one They are connected to resistors, other outputs of which are connected to thyristor control electrodes, an audible alarm, a pulse generator and control buttons for acknowledgment are connected to a relay, a transistor is connected parallel to the thyristor, the base of which is connected to the output of a pulse generator through a resistor, and its input is connected to a sound signaling device and to the anodes of the diodes of all the signaling cells, the cathodes of these diodes are connected to the common connection point of the signal lamp, tistor and transistor of each signaling cell 21. However, the known The devices have low reliability, since they do not provide for the extinguishing of signal lamps in the acknowledged signal mode. This circumstance creates the possibility of an error in estimating the signal about a deviation, besides that, when acknowledging the signaling devices are transferred to even light and are in such a state until the technological parameter deviation is eliminated, which reduces the efficiency of the device. The purpose of the invention is to increase the reliability and efficiency of the device. The goal is achieved by the fact that a pulse generator I1 is connected to a multipoint satellites device, the output of which is connected to the sound signaling device and the control inputs of the transistors of the individual signal cells, the emitters of the transistors of the individual signal cells are connected to the first bus through the resistors, and the collectors are connected via a successor but the included individual warning lights and the closing contacts of the sensors are connected to the second bus, the collectors of the transistors of the individual signal cells through The isolating diodes are connected to the third bus of the device, and through the thyristors, whose control inputs through the second isolating diodes are connected to one closing contact of the acknowledge button, to the first bus of the device, the connection points of the individual warning lamps with the closing contacts of the sensors through the third diversion zy diodes: connected to the control button, two keys are introduced, a generalized warning lamp and a current-limiting vacuum resistor, the first device bus is connected to the input of the first key, the output of which is one with a generalized light signal transmitter, the tire through a current limiting resistor for shuntirovayu1y first output terminal and second switch terminal zamykakitsim button switch is connected to a power schine, pulse generator under the key to the power bus via a second output terminal .vtorogo key.

The drawing shows the principle of the proposed device.

turns off and, with its closing contacts 24, turns off the generator I from the device contains a generator of 1 pulses, an acoustic signaling device 2, individual signal cells 3. In each signal cell 3, the emitter of transistor 4 is connected via a resistor 5 to the first bus 6 of the device, and the collector is connected via serially connected individual signal the lamp 7 and the closing contact 8 of the sensor are connected to the second bus 9. The third bus diode 11 and the thyristor 12 are connected to the third bus 10 through the second diode 13 of each individual the signal cell 3 is connected to one contact of the contact of the acknowledgment button 14, the third decoupling diode 15 is connected to the control button 16. The input of the first key 17 is connected to the first bus 6 of the device, and the output is connected to a generalized signaling device 18, the second bus 9 via a current limiting resistor 19, shunted by the first output contact 20 of the second switch 21 and the other closing contact 22 of the power button 23 is connected to the power bus 23. The pulse generator 1 is connected to the power bus 23 via the second output terminal 24 of the second key 21. The device operates as follows. When the technological parameter deviates, the sensor contact 8 closes, the negative pole of the power supply through the limiting resistor 19, the signal lamp 7 and the first developing diode 1 is connected to the input of the second switch 21, the closing contact 24 of which turns on the generator of I pulses, and the closing contact 20 shunts the current-limiting resistor 19. From the output of the generator 1 pulses through the resistor 25 to the base of the transistor 4 receives pulses of negative polarity, while the signal lamp 7 flashes periodically and r The asnet as well as tm indicates a generalized warning lamp 18. The acoustic warning device 2 gives an intermittent sound signal. 0 turning off the buzzer 2 and switching the signal lamp 7 to the constant burning mode are performed by the acknowledge button 14, and the trigger pulses through the diodes 13 are supplied to thyristors 12, shunting the transistors 4, and the second switch 21 58 of the power bus 23. The signal lamps 7 are evenly illuminated if contact 22 is in the On position and go out otherwise, as the resistor 19 enters the current-limiting signal into the thyristor 12 and the lamp 7 circuit. The 1Q B common light illuminates with a steady light regardless of the position contact 22 and goes out only when it is disconnected from the process contacts of 8 sensors. At the same time, the power supply circuit of the signal lamps 7 and the thyristors of the I circuit comes to its initial state. With the closure of the contacts of any sensor, the operation of the device is similar to the Health Monitoring is carried out by pressing the button 16, while the warning lights 7 are lit with a steady light. Thus, the generalized warning lamp 18 is an indicator of the state of the device, signaling that the device is turned on and there are deviations in the process variable. The invention makes it possible to extinguish the signal lamps after fixing the signal about the deviation, eliminates the possibility of an error in estimating the signal about the parameter deviation, which increases the reliability of the entire device as a whole, saves energy and the life of signaling devices. Formula of the invention A device for multipoint signaling, containing a pulse generator, the output of which is connected to a sound signaling device and controlling 9 inputs of transistors of individual signal cells, emitters of transistors of individual signal cells connected through resistors to the first bus of the device, and collectors through sequentially connected individual signal lamps and short-circuiting sensor contacts are connected to the second bus, collectors of transistors of individual signal cells through the first p The exciter diodes are connected to the third device bus, and through the thyristors, the control inputs of which through the second isolating diodes are connected to one closing contact of the acknowledge button, to the first bus of the device, the connection points of the individual signal lamps with the short-circuit contacts of the sensors through the third connectors The diodes are connected to a control button, characterized in that, in order to increase the reliability and efficiency of the device, two keys, a generalized warning lamp and a current-limiting cut are introduced into it the first device's pin is connected to the input of the first key, the output of which is connected to a generalized signaling device; the second bus is connected via a current-limiting resistor, shunted by the first output contact of the second key to the closing contact of the on button, connected to the power bus, the pulse generator is connected to the power bus via the second output contact of the second key. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 326614, cl. G 08 B 23/00, 12.01.-70. 2. USSR author's certificate JP 590792, cl. 6 08 B 23/00, 10/18/76 (prototype).

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Claims (1)

Claim A device for multipoint signaling, containing a pulse generator, the output of which is connected to an audible signaling device and to the control inputs of transistors of individual signal cells, emitters of transistors of individual signal cells are connected via resistors to the first bus of the device, and collectors are connected via series-connected individual signal lamps and closing contacts of the sensors to the second bus, collectors of transistors of individual signal cells through the first decoupling diodes sub are connected to the third bus of the device., and through the thyristors, the control inputs of which through the second decoupling diodes are connected to one make contact of the acknowledgment button, to the first bus of the device, the connection points of the individual signal lamps with the make contacts of the sensors are connected to the control button through the third isolation diodes, characterized in that, in order to increase the reliability and efficiency of the device, two keys are introduced into it, a generalized light signaling device and a current-limiting resistor, the first bus of the device connected to the input of the first key, the output of which is connected to a generalized light detector, the second bus through a current-limiting resistor, shunted by the first output contact of the second key and the closing contact of the power button, is connected to the power bus, the pulse generator is connected to the power bus through the second output contact of the second key.