SU746665A1 - Device for remote measurement and control of objects - Google Patents

Description

(54) DEVICE FOR TELE-MEASUREMENT AND TELECOMMUNICATION

OBJECTS

The invention relates to the field of telemechanics and can be used in the organization of telemetry and telecontrol processes, the collection and processing of production information from distributed and concentrated objects in automated process control systems. Devices are known that provide processes for telemeasurement, collection and processing of measurement and telecontrol results for various technological objects. A device for collecting telemetry information l contains pulse generators, a programmer with an address register at the input, switch C; the address register, the decision block, the operational storage block with the address register, the operation block, the time counter, the buffer memory block and the match circuit. This device provides with minimal redundancy and without preliminary selection of information on limited duration processes, starting for each channel, directly or with some delay after exploring one of the channel inputs. This ensures the organization of cyclic measurements on any input channel with its own time period. However, this device cannot be used to measure inertial long-term technological processes. The organization of the collection of information from such devices leads to hardware redundancy and a decrease in the reliability of information transfer in general. The closest in technical essence to the invention is a device 2} for telemetry and telecontrol of objects, containing single and group technological controlled objects, the outputs of which are connected to the first inputs of the block of reception and transmission of intermediate control rooms. The first output of the receiving and transmitting unit is connected via an alarm unit to the input of the unit for starting and stopping monitored objects, the first output of which is connected to the primary inputs of the Direction Keys, the second output - to the input of the signal correction unit, the third output - to the input of the poll decoder, the fourth output -

to the inputs of switches, to the upper outputs of KOTOiMiLK are connected to the first inputs of the direction switch, the third output of the Kc1 of the direction key is connected to the third inputs of the other direction keys, the first output of the signal correction unit is connected to the second input of the front end. The output of the ASSISTED SIGNS unit is connected to the fourth inputs of the directional switches, the fourth people are connected to the first inputs of the application signal generator, the output of which is connected to the first amplifier input, the first output of the polling decoder is connected to the second amplifier input, the second output is from VTORSh4 input of the signal conditioner

. for vki. The second output of the start and stop unit is connected via a code generator to the second one by the direction switch input, the third output is connected to the third input of the direction switch, the outputs of which are connected to the third inputs of the transmission / reception unit. The amplifier output is connected to the fourth input of the direction switch. The fifth output of the reception / transmission unit is connected to the first 1 input of the information reproduction unit, the output of which is connected to the third input of FORM1 (signal converter). The sixth output of the receive and transmit unit of the interim PD at the central PD is connected to the First inputs of the receive unit — the first output which is connected to the first input of the input information block. The first output of the control unit is connected to the second input of the information output flea through the constant coefficient block, the output of which is connected to the input of the processing unit. ormatsiiV second output of the control unit and the first output signal vyyoda unit are connected to respective inputs of the data transmission unit whose output is connected Kb

 the input of the computer. The third output of the control unit is connected to the first input of the information unit, the second output of the direction selector unit is connected to the second input of the first direction block, and the first input is connected to the first output of the processing unit PG the fourth output through the program setting block - с. the second input of the information processing unit, the fifth output of the control unit is connected to the third input of fCQTOporo. The second output and the fourth input of the information processing unit are connected respectively to the input and output of the memory block. The third output of the information processing unit and the second output of the direction selection unit are connected respectively to the first and second inputs of the registration unit. Fourth of the data processing unit is connected to the input of the direction selection block, the third output of which is connected to the first inputs of the direction switch and the direction keys. The first outputs of the directional switches are connected to the corresponding request gateway driver, the output of which is connected to the first input of the amplifier. The fourth output of the direction selector is connected to the first input of the preparatory signal generator for receiving, the output of which is connected to the second input of the amplifier. The amplifier output is connected to the second input of the direction switch, the outputs of which are connected to the second input / output unit. The second output of the transmission-reception unit is connected to the input of the response signal decoder, the third outputs of the transmission-reception unit are connected to the second inputs of the direction keys. The second output of each previous direction key is connected to the third input of each last direction key, the second outputs of the last one and the direction key are connected to the third input of the direction switch. The fifth exhaust of the information processing unit is connected to the input of the signal output unit, the second output of which is connected to the third input of the transmission and reception unit.

A disadvantage of the known device is the low reliability of the device in operation.

The aim of the invention is to increase the reliability of the device.

The goal is achieved by the fact that a preparation signal decoder, a call signal generator, a shutdown signal generator, and an OR element are inserted into the device on intermediate DPs. The third output of the polling decoder, the third output of the signal correction unit and the first outputs of the direction keys are connected with the corresponding ones. inputs shaper call signal, the output of which is connected to the third input of the amplifier. The fifth outputs of the directional switches are connected to the inputs of the OR input, the output of which is connected to the first input of the trip signal generator, the second input of which is connected to the output of the voltage signal generator, and the output connected to the fourth input of the amplifier. The seventh output of the receiving-transmitting unit is connected to the first input of the preparation signal decoder, the first output of which is connected to the second input of the information preparation unit. The first output of the preparation signal decoder is connected to the fourth input of the signal conditioner, the third, output, to the fifth inputs of the direction keys ,. A transmission enable block, a disconnect signal descrambler and a direction disconnect unit are inserted at the central PD.

The fourth output of the receiving-transmitting unit through the decoder of the turn-off signal is connected to the first input of the turn-off unit, the second input of which is connected to the output of the answer signal decoder. The outputs of the direction disconnection unit are connected respectively to the fourth inputs, direction keys. The second output of the signalizer of preparation for reception and the fifth output of the transmission and reception unit are connected to the corresponding inputs of the transmission resolution block, the output of which is connected to the fifth input of the information processing unit. Diagram of the device is presented on

drawing.

Single objects 1 (wells) and group objects 2 (automated group metering units) are installed at technological facilities 3. Technological facilities 3 are combined according to the territorial and technological criteria and connected to their intermediate DP 4.

DP 4 contains a block of reception-transmission 5, direction keys 6, direction switch 7, signal conditioner of application 8, amplifier 9, polling signal decoder 10, response signal conditioner 11, call signal conditioner 12, signature signal correction unit 13, OR element 14, shaper signal switch 15 and 15, decoder signal preparation 16, information playback block 17, alarm block 16, object start and stop block 19, and shaper .20 code of the object of choice

DP 4 connected to the Central DP 21.

DP 21 comprises a reception-transmission unit 22, direction keys 23, direction switch 24, polling signal generator 25, amplifier 26, response signal decoder 27, direction disconnector 28, trip signal decoder 29, information input unit 30, information processing unit 31 , block of constant coefficients 32, control unit 33, memory block 34, processing program setting unit 35, display unit 36, information recording unit 37, direction selecting unit 38, reception preparation signal generator 39, transmission resolution 40, unit Signal output alov 41 and a data transmission unit 42 connected by a communication channel with a computing machine 43.

The device works as follows.

On objects 2, the measurement of technological parameters is made, which are connected to the automated group measuring installations of the squa, zhin.

For a group of objects (wells), a self-tuning program.

measurement, the duration of which depends on the performance of each object currently connected to the flow rate of the total fluid Q .. The limits of the measurement program are set. 5 with a maximum duration of 1 "s" .o, yes. for an object with low productivity from the entire given group (QJK.HUH.) the number of time pulses (), and with a minimum duration of .MHH.

L on the object with the maximum performance (Qjtt.Moa) number of measuring pulses (N,). In this case, an object with a center is measured for a minimum time, and an object with a. maximum time tusMi ciiM :. Other

5, objects are measured within these limits until reaching the installation, which is determined by their performance. The address of the object is generated (RITS, No. Gr., SLE.) And the measurement time and measurement pulses are recorded for total fluid flow (N®), product water cut (N%) and gas flow rate (NQ). After the measurement is completed, the application signal is formed and

5 in the absence of similar signals in the channel, applications from other objects and feed it into the channel. When DP 4 is busy servicing other directions, the object waits for its turn, and the signal

0 applications are submitted peribdically to the channel. At this time, measurement parameters are not recorded.

Signal for vka from objects 3 to

A specific direction is received at DP 4 by the pre-transfer unit 5, decrypted and fed to the corresponding direction key 6. This key, the directions are triggered, blocks the other keys of the direction of the SRI 6 (which excludes servicing of other directions) and sends a signal to the switches ± directions 7 (which ensures the switching of the selected direction with the block of transmission 5 and 5 and the disconnection of other directions). Moreover, the involved key of directions b periodically sends a signal to the signal conditioner of application 8, which through the amplifier 9, the direction switch 7 and the transmission and reception unit 5, transmits a signal to the central control center 21.

At the DP 21sia-nal applications are accepted by the unit of reception and transmission 22, if

5 The equipment is not engaged in servicing the other direction. The paging signal is received, decoded and fed to the corresponding direction key 23, which is activated and blocks

l other directional keys, which excludes the reception of application signals from other DP.4. In addition, the direction key that triggered sends a signal to the direction switch 24,

- that connects the selected channel to receive telemetric information and disconnecting other channels. Then the direction key 23 iodizes the signal to the driver of the interrogation signal 25, which generates the interrogation signal and feeds it through the amplifier 26, the direction switch 24 and the transmission-reception unit 22 to the connected AC 4.

On the connected PD, the polling signal is received by the receive-transmit unit 5 and fed to the decryptor of the oprc signal 10. The decoder 10 decodes the signal, turns off the driver of the application 8 and sends a signal to the signal conditioner 11 which generates a response signal and through the amplifier 9, the direction switch 7 and the unit reception-transmission 5 sends it to PD 21. The signal comes through the transmit-receive unit 22 to the decoder of the response signal 27, which sends a signal to the direction-disconnecting unit 28. The block 28 blocks the operation of the directional keys 23, hr. Disconnection of other directions that are in standby mode, and PD 21 is ready to receive telemetric information from gearbox 1. At PD 4, the polling signal decoder 10 also sends a signal to the call signaling device 12, which is already prepared for operation by a signal from the affected direction key 6. In the absence of a signal from the signal correction unit 13, the signal conditioner, call 12, sends a release signal through amplifier 9, direction switch 7 and reception / transmission unit 5 to facility 3, which has applied for servicing. Object 3 Receives the call signal, stops transmitting the request signal, and first starts transmitting the telemetric information by code-pulse modulation at the transmission frequency (). Signals p Echo on the block of reception and transmission 5; the signal correction unit passes, 13 and then the transmission and reception unit 5 is fed to the PD 21. The signal correction unit 13 provides for the restoration of the pulse shape in the transmitted packet and the correction of single errors in the code combinations. As soon as the signal correction unit 13 starts to work, the signal from it is transferred to the call signal shaper 12 ,. which ensures its shutdown. When preliminarily transmitting telemetric information, the selected object connects the next well and other objects to the measurement. They can signal applications to DP 4, since in the process of transmitting telemetry measurements, controls in one direction are blocked. At the end of the signal retransmission, the signal correction unit 13 sends a signal to the direction keys B, which are set to their original position. At the same time, the reception path is ready to receive a signal for applications from objects 3.

When a signal arrives from objects 3 of an already serviced direction or Other direction, J is triggered by one of the direction keys 6, which sends a signal to the polling signal generator from PD 21. The call signal is sent to object 3, which sends a signal, and the request is output transmission of telemetric information.

The process of transmitting and retransmitting telemetric information is repeated as long as the objects of this AM 4 are received at the reception.

 when no objects are received from the objects, the OR 14 circuit stops the signal to the turn-off signal conditioner 15, which generates a turn-off signal. This signal is transmitted to the PD 21 and is fed through the reception-transmission unit 22 to the turn-off signal decoder 29. The decoder 29 sends a signal to the direction disconnect unit 28, which ensures that the direction keys 23 are reset. With the receive transfer volume 6jioK 22, it is again prepared to receive the signal from DP 4.

At the PD 21, the telemetric information received from the receiving-transmitting unit 22 is fed through the information input unit 30 to the Information processing unit 31. In block 31, the received information is processed

5 determine the average daily performance of the object (well) according to the appropriate algorithm taking into account the correction factors characteristic of the measured medium) (oil

0 long-term field). In the information processing block 31, the coefficients are set by the block of constant coefficients 32 through the information input block 30 by the command of the control unit

5 33. After processing the received information for each well, we have information that contains: the address of the object (RITS, c. No., Well number); QjjtT / cyT; (1 „. T / day; Q t / day;

Q is the weight percent of water and gas flow rate. 0 ,,. This information is stored in the memory block 34. The selection of the information processing program is carried out by the operator through the control block 33 and the program setting block

 processing 35. The processed information is displayed in parallel on display unit 36, which allows the operator to follow the progress of the collection and processing of information. At the command of the unit

0 control 33 information processing results may not be output to display unit 36. Information is accumulated in the memory block 34 during the day from all objects. To defined-i

Claims (1)

1. USSR author's certificate №433523, cl. G 08 C 15/06, 1973, 2, USSR Author's Certificate No. 519726, cl. S 08 C 19/28, 1973.