SU1548803A1 - Device for telemonitoring - Google Patents

Abstract

The invention relates to the field of telemechanics and is intended for the telemechanization of energy facilities using urban telephone circuits or radio channels. The purpose of the invention is to increase the functional reliability of the expansion of the field of application by providing a display of information about the state of controlled items. The device contains a multivibrator 1, a distributor 2, a node for simulating the pick up of the handset, a node 8 for shaping the duration of the operation modes, an information display unit 13, a sound generator 4, keys 5, 6, a cumulative 23 and a limiting 3 elements, an alarm driver 22. The device provides a television signaling about the state of the monitored equipment at the facility, both in automatic mode and at the request of the dispatcher. You can use non-standard communication channels to arrange communication between the control room and the object. An information display unit is installed at the control room and is connected to the device via a telephone communication line. 1 hp f-ly, 1 ill.

Description

The invention relates to telemechanics, in particular, can be used for telemechanization of energy facilities that have a telephone connection with a control center in a city PBX, a departmental PBX or any type of communication that provides negotiations.

The purpose of the invention is to increase the functional reliability and expand the scope by providing a display of information on the state of controlled items (CP),

The drawing shows the block diagram of the device

The device for telecontrol contains multivibrator 1, distributor 2, limiting element 3, sound generator 4, keys 5 and 6, imitation node 7 of the handset uplift, node 8 of forming the operating mode duration consisting of rectifiers 9, first, third and second relay 10-12 with corresponding closing and opening contacts. The device also includes an information display unit 1 consisting of a linear block 14, a counter 15, a memory block 16, a light board 17, a telephone set 18, a subscriber address driver 19, etc using telephone lines 20, contacts of the controlled point 21 used for remote signaling, alarm generator 22, accumulator 23, Telephone 18 is installed in the control room, driver 19 is at the controlled point and is an automatic dialer, for example, Eletup type, In addition, node 8 contains restrictive elements 24 and 25, the cumulative

five

0

35 .Q .c

50

ment 26, load element 27, rectifying element 28,

Changing the state of any alarm object on the CP causes the switching of the corresponding contacts 21 and 21. Switching the contacts 21 causes the actuator 22 to activate, which turns on the relay 1 2, the latter blocks itself and by its contact 12 acts on the driver 19, which The PBX (20) connects the information display unit 13 to the block 7; simultaneously with this closure of the contact 12, the pickup tube 7 node 7 is activated, which connects to the power source ltivibrator .zvukovoy generator 1 and 4, launch them.

The multiplier 1 pulses from one shoulder and switches the distributor 2, and pulses from the other shoulder to the control input of the key 5, opening it, as a result of which a tone signal with a duration due to the state of the contacts passes through the relay 12. At the next step of the distributor, the multivibrator distributor circuit is open, the signal from the distributor output does not arrive at the control input of the switch 6, the multivibrator charge circuit remains bounced and the multivibrator produces pulses of duration t for the duration of which the key 5 is open and a tone message of the same duration arrives in the communication line. If at the next step of the distributor the distributor-multivibrator circuit is closed, the signal from the distributor's output will dive element 3, which

51

causes an increase in the pulse duration of the multivibrator, respectively, the duration of the tone burst to t4.

After polling the contacts 21 of all monitored objects, the dispenser returns to its original position. This ends one transmission cycle. The number of transmission cycles is set by setting relay 11, which is triggered at the beginning of the transfer from contact 12 closure and opens contact 11 in accordance with the specified setting. Opening this contact triggers relay 12, its contacts open, the simulation node 7 is disconnected from the power source in the channel connection, the device stops working.

In one transmission cycle, tonal parcels arrive in the communication line, the number of which is equal to the number of control objects.

At each step, tonal parcels arrive at block 14, in which they are filtered, detected and fed to counter 15, ensuring that it is in synchronous-common mode with distributor 2. At the same time, longer parcels are sent to the recording input of block 16, which is a set of relay items. The pulses from the outputs of the counter 15 are fed to the address input of the block 16. If the signals on both inputs of the block 16 coincide in time, the state of its cell corresponding to this step of the distributor changes, which causes the supply circuit of the corresponding board 17

Thus, the state of the objects at the controlled point is displayed through the state of the indicator lamps. For example, if the parcels with the duration t arrived at the first and third steps of the distributor, and at its other steps the parcels arrived with the duration t1, the first and third lamps of the display will be turned on, respectively. Such a combination of the included lamps signal the on state of the first and third monitored objects and the off state of others,

Received information is stored until the next transfer, caused by the switching of monitored objects.

0

In the request mode, the device operates as follows.

When a high-voltage signal arrives along the GTS lines, this signal goes through element 23 and rectifier 9 to the relay coil 1 0, while the plus power source is fed through elements 24 and 28 while the package 26 is in existence for element 26, charging it before. some potential, "Circuit parameters are selected in such a way that in order to fully charge a capacitor, several drops are required, for example, five or six. When up

on capacitor Cg of the required potential, the relay 12 switches on and the device starts to work in a similar way to its operation in automatic mode,

In the case of communication with a dedicated telemechanical channel, the telecontrol device is directly connected to the channel input, and the fourth contact of the relay 12 remains unused,

In case of using a radio channel for communication, the fourth contact of the relay 12 should be connected in parallel with the transmission channel locking circuit.

Claims (1)

Invention Formula five 0 1, a device for telecontrol, containing a distributor, the outputs of which are connected to the corresponding contacts of the controlled point, a sound generator, a multivibrator, a limiting element, a handset imitation node, the output of which is connected to the input of a sound generator and a starting input of the multivibrator, characterized in that in order to increase functional reliability and expand the field of application by providing information on the condition of controlled items, keys, driver signal generator, information display unit, subscriber address driver, accumulative element and operation mode duration node made on parallel-connected accumulative element and load element, the first output of which is connected to the first output of the first and second restricting elements through the rectifying element five The first terminal of the first limiting element is connected via the closing contact of the first relay to the positive terminal of the power source, the second terminal of the second organic element is connected to the first terminal of the winding of the second relay, through the third relay opening contact to the first terminal of the winding of the third relay and through the second contact the relay to the positive terminal of the power source; the second terminals of the load element and the windings of the second and third relays are connected to the negative terminal of the power source, the rectifier, the first pbdklyucheny whose second terminals respectively to the first and second coil terminals At the fourth input of the tubing simulation unit, the outputs of the distributor 3. The corresponding closing contacts of the controlled point are connected to the input of the second switch connected in parallel with the limiting element the first and second terminals of which are connected to the negative terminal of the power source and the first input of the multivibrator, respectively, the first and The second outputs of the multivibrator are connected respectively to the second input of the first key and the input of the distributor, the first and second outputs of the subscriber address address it is connected respectively with the first and second terminals of the third closing contact of the second relay node The first winding terminal of the third relay of which is connected to the output of the alarm generator, the inputs of which are connected in parallel with the common groups of closing and opening contacts of the monitored point, the first and second inputs of the display unit are connected respectively to the first and second wires of the telephone line. the first relay, the third output of the rectifier- 2Q formation of the duration of the modes, the node of the generator of the duration of operating modes through the cumulative element is connected to the first output of the subscriber address generator, the first wire of the telephone line and 25 the first input of the handset simulation node, the fourth output The rectifier of the node for forming the duration of the operation modes is connected to V1 to the second output of the subscriber's address 30, the second wire of the telephone communication line and through the first closing contact of the second relay of the node forming the duration of the operation modes - to the second input of the lift-up simulation node, the third input of which is connected via the second closing contact of the second relay of the duration-forming node of the operation modes to the positive terminal of the power source, the output of the sound generator is connected to the first output of the peruse key, the output of which is connected 2, The device according to claim 1, 1 and 2, is that the display node contains a linear counter, 2 $ memory block and a light board, the first and second inputs of the linear block are the first and the second kt la inputs, a first output node via a linear counter and a second output governmental By direct coupled to first and second inputs of the memory unit respectively output memory unit is connected to the input light panel. 40 Editor N. Lazorenko Compiler 3, Nizamutdino & a Tehred M. Didyk Proofreader V. Kabatsy Order 143 Circulation 443 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology CCCJP 113035, Moscow, Zh-35, 4/5 Raushsk nab. the first terminal of the winding of the third relay of which is connected to the output of the alarm generator, inputs. which are connected to parallel connected groups of closing and disconnecting contacts of the controlled point, the first and second inputs of the display unit are connected respectively to the first and second wires of the telephone communication line. shaping the duration of the modes shaping the duration of the modes 2, The apparatus according to claim 1, 1, 1, and 20, wherein the display node comprises a linear counter, a memory unit and a light board, the first and second inputs of the linear block are the first and second inputs of the node, the first output of the linear node through the counter and the second output is directly connected to the first and second inputs of the memory unit, respectively, the output of the memory unit is connected to the input of the light board. Subscription