SU493787A1 - Information device for operational dispatching equipment of automated control systems - Google Patents

Description

The invention relates to remote control and can be used in remote alarm systems.

Remote signaling devices are known that contain sensors connected via modulators to the inputs of transmitting linear blocks, the outputs of which are connected via the communication line to the inputs of the corresponding receiving linear blocks, AND, OR demodulator, alarm demodulators, conversion blocks , information indicators, indicators of communication lines and emergency, encoder, excitation generator, whose input is connected to the output of the call unit, and output to the control input of the encoder, audible signal unit tion.

However, the known devices have limited information, which does not allow the tele-signaling of more than two parameters.

The purpose of the invention is to increase the functional capabilities of the device.

This is achieved by the fact that in it the output of each receiving line unit is connected to the input of the corresponding emergency demodulator, the first conversion unit and the first input of the first element "AND, the outputs of the emergency demodulators - with the first inputs of the second element AND

corresponding inputs of the second element “OR. The second inputs of the elements “AND are interconnected and connected to the corresponding outputs of the call block, the outputs of the second elements“ AND to the corresponding inputs of the encoder, and the first elements “AND to the corresponding inputs of the first element“ OR whose outputs through the demodulator of the code and the encoder are connected to indicators

information. One of the outputs of the first conversion unit is connected to a link indicator, the other is connected to the corresponding input of the audio alarm unit. The output of the second element OR is connected to the input of the second conversion unit, the output of which is connected to the inputs of the sound alarm unit and the alarm indicator.

The specified functional construction of the device allows the remote signaling of an almost unlimited number of parameters (with a corresponding number of controlled objects).

The functional diagram of the information device of the operational dispatching equipment of automated control systems is shown in the drawing, where are the sensors; 2n-2nm - modulators; 3i-Зп - transmitting linear blocks; 4i-4n - receiving linear units; 5i-5, d - emergency demodulators; 6i-6p - elements

 - conversion blocks; 8i-8n — link indicators; - elements 10 - call block; 11-element 12 - demodulator code; 13 — excitation generator; 14 - encoder; 15 - information indicator; 16 - element 17 - conversion unit; 18 - emergency indicator; 19 - sound alarm unit. The device works as follows. When transmitting information about the states of n different objects, the circuit includes sensors, 2n-2pt modulators, non-interleaving linear blocks, the outputs of which are connected to the receiving linear blocks 4i-4n through the communication line, and the outputs of the receiving linear blocks to the demodule tori 5i-5p emergency, with the elements "And 6i-6" and conversion units. The 8i-8 link indicators are connected to one of the outputs of these conversion units. The second outputs of the 7i-7p conversion units are connected to the corresponding inputs of the sound alarm unit 19, the outputs of the emergency demodulators 5i-5 „to the inputs of the elements“ AND 9i-9 ”and with the corresponding inputs of the element“ OR 16. The second inputs of the elements “And 6i -6 „and 9i-9„ are connected together and connected to the corresponding outputs of the call block 10, the outputs of the elements “AND - to the corresponding inputs of the element“ OR 11. The output of the element “OR 11 is connected to the demodulator 12 of the code, the outputs of the latter through the encoder 14 - to information indicators 15. The outputs of the elements AND 9i-9i are connected to the corresponding inputs of the encoder 14, the output of the call unit 10 is connected to the input of the excitation generator 13, the output of which is connected to the control input of the encoder 14. The output of the element OR 16 is connected to the input of the conversion unit 17, the output of which connected to the inputs of the sound alarm unit 19 and the emergency indicator 18.

In the initial state, the information tool is enabled. Elements of the li-In device, 2п-2пт, 3i-Зп, located on each object from which it is necessary to receive information, are also included.

The li-In sensors are in different positions, depending on the state of the object or the parameter being transmitted. If there are no signals from the sensors (for example, when the sensor fails), the modulators do not generate a code. At each sensor, signals can appear at a particular point in time, depending on the state of the object, only on one of the m outputs.

The modulators 2ii-2pt convert the signal from the sensors into the corresponding codes, which are transmitted by the transmitting linear units, 3i-3 in the communication lines and are received at the control point of the receiving linear units 4i-4p. If an information device is used to transmit information about objects of the same type, the same sensor positions on different objects must correspond to the same code generated by modulators, i.e., in this case, the codes on the outputs of modulators 2c, 2i2, ..., 2im repeat the codes at the outputs of the modulators 221, 222,, 22t, etc., respectively. The information device transmits information and species for n objects. If the objects are not of the same type and the transmitted information must be different for each object, then the code combinations from the output of all modulators 2n-2pt should not be repeated. Information device transmits information tp various types. In this case, the schemes of the demodulator 12 of the code and the encoder 14 are somewhat complicated.

Thus, at the output of the receiving linear blocks, there is a constant information about the state of objects in the form of codes corresponding to 20 sensors corresponding to a certain position.

Codes from the outputs of the receiving linear blocks 4i-4i are fed to the inputs of the demodulators 5i-5 and the emergency situation, the elements “AND 25 6i-6p and blocks 7i-7” of the conversion.

With the pressed keys of the call unit 10 (the operator does not call up information about the state of objects or parameters to the information indicators 15), the voltage on the second 0 inputs of the "And 6i-6" elements is not supplied, the outputs of these circuits do not have codes. Blocks 7j-7p convert the incoming code (including the code corresponding to the emergency), and the required voltage, the 8i-8 indicators of the communication lines are hot, signaling to the operator about the normal state of the communication lines with the objects.

When any of the sensors li-In modulators 2) 1-2p, the transmitting linear blocks, receiving linear blocks 4i-4p of the signal at the input of the corresponding block 7 {-7p no conversion, the corresponding indicator 8i-8 goes off, the corresponding LED indicator goes out A signal is given to the sound alarm unit 19 5. The extinction of the corresponding indicator and the occurrence of an audible signal indicate the occurrence of a malfunction in the listed elements of the device in this direction or the exit 0 of the communication line.

Thus, according to the indicators of the communication line, the operator judges not only the health of the communication lines with the objects, but also the health of the device elements located on the objects, as well as the receiving linear units.

In the absence of emergency codes in the code combinations at the output of the receiving linear blocks, the signal at the output of the demodulator 5i-5p does not appear. Since the call keys are depressed, there are no signals at the outputs of the elements, a demodulator of the 12 code, an excitation generator 13, an encoder 14 do not work, there is no information on the indicators 15.

To obtain information about the state of objects or to monitor the value of measured parameters, the operator uses the keys of the call block 10. When you press the call button information of any object, the voltage is applied to the generator 13 of the excitation and the second inputs of the elements "And 6i-6p, 9i-9" of the corresponding object.

Let, for example, the key for calling the first object is pressed.

If there is no emergency situation, the signal at the output of the AND 9i element does not appear, since there is no signal at the first input of this element, because the emergency demodulator responds only to the emergency code combination. From the output of the element "AND 6i, the code combination through the element" OR 11 is fed to the input of the demodulator of the code. The demodulator converts the code combination at its input to the voltage at the corresponding outputs, which is fed to the inputs of the encoder. The encoder, using the voltage from the output of the excitation generator, generates a voltage at the corresponding outputs, depending on the voltage at its inputs. The voltage generated by the encoder is applied to information indicators to illuminate the alphanumeric message corresponding to the position of the sensor of the first object. Thus, a specific type of text (information) on the information indicators corresponds to certain combinations of signals at the outputs of the encoder.

If you release the call block key, the circuit returns to the initial state — the indicators go out, since the code combination does not pass to the output of the circuit And 6i and the voltage is removed from the excitation generator.

When you press a key to call information of another object, the information device works in a similar way, and the encoder forms a voltage on other outputs, depending on the position of the sensor of this object, other information is displayed on the indicators.

Simultaneous display of information for two or more objects on the indicators is excluded by using the call block key with a mechanical lock, prohibiting the simultaneous pressing of two or more keys, or electric blocking, prohibiting the issuance of signals from two or more keys at the same time.

In the event of emergencies at the facilities, the sensors emit the appropriate signals, which are converted by modulators into a certain code combination, issued via the transmitting linear units in the communication line. For example, in the event of an emergency at the first object, the code combination from the output of the receiving linear unit 4i is fed to the input of the demodulator 5 signal from the output of the demodulator to the “And 9i” element and through

"OR 16 per conversion unit." The conversion unit supplies voltage to the emergency indicator and audible alarm unit. Illumination of the indicator and the occurrence of an audible signal indicate the occurrence of an emergency. When an emergency situation occurs at another facility, the device works in a similar way.

Using the key block operator call

determines the number of the object on which the emergency has occurred and the nature of this situation. When you press the call key of the first object, a signal is sent to the second inputs of the elements "And 6i and 9i and to the generator

excitement. The signal from the output of the circuit "And 9i goes to the corresponding input of the encoder.

The encoder, using the voltage from the output of the excitation generator, generates a voltage at the corresponding outputs. The voltage from the outputs of the encoder is fed to the indicators. The indicators display information corresponding to the emergency position of the sensor of the first object.

An emergency code combination also appears at the output of the elements AND 6 and through the element OR 11 enters the input of the demodulator 12 of the code. However, there will be no signal at the outputs of the demodulator;

since the demodulator does not respond to emergency code combinations.

By consistently calling up on the indicators information about the state of objects, the operator determines the numbers of objects on which an emergency situation is observed and the nature of this situation.

When an emergency situation is eliminated at the facilities, none of the sensors is in the position corresponding to the emergency situation, there are no signals at the outputs of the emergency demodulators, the conversion unit does not work, the emergency indicator goes out.

Subject matter

Information device of operational-dispatching equipment of automated control systems containing sensors connected via modulators to the inputs of transmitting linear blocks, whose outputs are connected via the communication line to the inputs of the corresponding receiving linear blocks, AND, OR logic demodulator and alarm demodulator situations, conversion units, information indicators, communication line and emergency indicators, encoder, excitation generator, the input of which is connected to the output of the call unit VA, and the output from the control input of the encoder, an audible alarm unit, characterized in that, in order to increase the functionality of the device, the output of each receiving line unit is connected to the input of the corresponding emergency demodulator, first conversion unit and first the inputs of the first element “And, the outputs of the emergency demodulators are connected to the first inputs of the second element“ AND and the corresponding inputs of the second element “OR, the second inputs of the element“ AND are interconnected and connected the corresponding outputs of the call unit, the outputs of the second elements "and are connected to respective inputs of the encoder, and the first element" and - with respective first inputs

An OR element whose outputs through a code demodulator and an encoder are connected to information indicators, one of the outputs of the first conversion unit is connected to a communication line indicator, the other is connected to the corresponding input of the audible alarm unit, the output of the second element OR is connected to the input of the second conversion unit whose output is connected to the control

the sound block and alarm indicator inputs.