SU634347A2 - Telemechanics information transmitting and receiving apparatus - Google Patents

Description

moves to () torus () 1h are connected to the second inputs of the corresponding pulse accumulators of measured parameters, the second output of the control unit is connected to the input of the generator of additional pulses, the first output of which is connected to the second input of the gear unit of the trigger signals, the second output is connected to the first input of the accumulator pulse counting, the first output of which is connected to the first input of the information representation unit, the second output is connected to the second input of the information processing unit, the corresponding outputs of which are connected to the second input Odam of the information representation unit and the accumulation pulse accumulator, the second output of the time counting unit is connected to the third input of the processing unit vn-qiOfi.vialuni, the first output of the flow number and the address of the object, the second output of the number flow generator and the object's distance are connected to the fourth input connection with the third block entrance; uprai.chepi. the output of which is connected to the second input of f (rmprov; sang flow numbers i a ;;, pecti obt, ekta.

S.Shema uS7r () is1 shown in part | one-.

The device contains measure / I) 1, driver 2, code of stream number, bkk 3 packs of pulses, unit 4 is controllable, unit 5 of reception and transmission, unit (channel; generation, interrogation signal sensor unit 7, driver 8 measured parameter pulses, alarm generator 9, elements 10 and 11 AND, element 12 OR, communication line 13, device inputs 14 and 15, channel-forming units 16, driver 17, flow numbers and object addresses, processing ITDs 18, and block 19 controls, a start signaling transmission unit 20, a time counting unit 21, 22 incrementing pulses generator, 23 incrementing pulses 23, information presentation unit 24, emergency signal generator 25, measured parameter pulses 26 and 27 pulses of measured parameters and signal receiving units 28.

The device operates as follows. Previously, the meters 1 of all monitored items are set to measure flows having the same condition, for example, the first. At the control room (DP) in the former, the stream number and the address of the object 17 are also set to the first stream number. The next measurement begins with the generation of a PA of a DP block.m. of control 19 of control signals. Initially, a reset signal is generated, the initialization unit of information processing unit 18 and accumulators of measured parameters 26, 27 are accumulated. A reset is triggered through triggering unit 20 and connection line 13 to all controlled points (КГ1). At all, the KP signal "reset is received by the receiving and transmitting unit 5) and, through the control unit 4, sets the accumulation unit 3 to the zero state. At the same time, the control unit 4 generates a response signal provided with a flag corresponding to the flow number or With the relevant stream excluded from metering. The response signal arrives through the channelization unit 6 and the communication link 13 to the corresponding channelization unit 16 and the signal reception unit 28 at the AC. At this point, the quality control indicator of the flow number from the flow number generator and the address of the object 17 has arrived at all the signal receiving units 28.

The control time for the response signal is set by the control unit 19. In the event of a signal that the response doesn’t occur, the response unit 28 takes a signal no response, the stream number and the address of the object 17 are selected and the address of the reception unit is selected. 28, where the signal came from, and ubi; iacT signal to the driver of emergency signals 25 and the information presentation unit 24, which causes its operation. In the case of inconsistencies between the signs of the signal "response and the control signal at the output of the corresponding signal receiving unit 28, the alarm" crashes, and in the case of a signal "the response with the indication corresponding to the flow excluded from the measurement, the corresponding reception unit 28 signals produces a signal “Thread missed. The signals from the signal block 28 of the signal 28 are sent to the stream number generator and the address of the object 17, which selects the address of the signal reception block 28, where the signal came from, and issues a signal to the emergency conditioner driver D1al 25 and information representation block 24, which causes its operation . At the end of the monitoring time, the control unit 19 generates a start-up signal at the time counting unit 21 and a start signaling transfer unit 20, which transmits a start-up signal via communication line 13 to all control stations. In this case, the control unit 4 gives permission for accumulation in the accumulation unit and the pulse EaCO 3 produced by the meter 1 in the process of measuring the flow rate (for example, liquid flow rate), and gives permission for the passing of pulses from the meter 1 (for example, oil flow rate and gas flow rate ), for.uiruv.mykh in the pulse shaper of dimensionally em 8 meters, 8 through the control unit, the receiving and transmitting unit 5 and the channeling unit 6 into the communication line 13. Nmulsy arrive at the corresponding units hanloobrazovann 16, and then through the signal receiving unit 28 to the corresponding vuyuschy pulses drive the measured parameter 26 and 27. Signa; The "start" entering the time counting unit 21 allows the measurement time to be counted. The pulse accumulation unit 3 is a pulse accumulator of a certain capacitance (for example, a capacitance is equal to 100 pulses). After accumulating a selected number of pulses in the accumulation unit 3, the receiving and transmitting (information) 5 unit through the control unit 4 receives the measurement end signal, this signal through the channelization unit 6 and the communication line enters the corresponding channelization unit 16 and the signal reception unit 28 The signal receiving unit 28 sends a signal “the end of the measurement to the shaper of the stream number and the address of the object 17, which selects the address of the signal receiving unit 28, from which the signal“ the end of the measurement. When a signal is received from the pulse accumulation unit 3, the control unit prohibits the passage of pulses from the pulse former of the measured parameters 8.

Upon completion of the selection of the address of the signal receiving unit, from which the signal "the end of the measurement, the control unit 19, sends a signal to the information processing unit 18 for sequential processing of information (liquid flow, oil flow rate, gas flow rate) about the consumption of measured parameters. In this case, to determine the daily flow rate (flow rate) of this flow, the ratio is used:

l - -

q - CTZZM)

where tsAM is the duration of the measurement time (hour C is a constant meter (t / pulse, m / pulse);

N, - the value of the number of pulses accumulated during measurement.

The duration of the measurement time enters the information processing unit 18 from the time counting unit 21. The magnitude of the number of pulses N accumulated during the measurement is taken from the corresponding pulse accumulators of measured parameters 26 and 27, and when processing the daily flow rate measured by the unit of accumulation of pulses 3, the value of N is taken equal to its capacity (in this case, 100). After the processing of the corresponding parameter is completed, the information processing unit 18 issues a signal "ready to the information representation unit 24, which registers the processing results and the address of the corresponding signal receiving unit 28 on punched tape and blank of the digital printing machine. Since the flow rates of measured fluxes at all CPs are generally different in magnitude, the times and arrival times of measurement termination signals from CPs are also different. In this case, there is always a certain measurement time, after which the measurement for all CPs should end. Since this time can be very large at low flow rates of the measured flows, the time counting block 21 limits it (the limit measurement time is entered). At the end of the time limit, the time counting unit 21 sends a signal to the start signal transmission unit 20 via the control unit 19. The start signal transmission unit 20 generates a stop signal through the link 13 to the receive and transmit unit

5 5 and all controlled items. The stop signal prohibits the passage of measured parameter pulses to the pulse accumulation unit 3, as well as the pulses from the pulse generator of measured parameters 8 through the control unit 4 to the receive unit and the transmit unit 5. The control unit 19, using the stop signal, starts the pulse generator 22. which delivers the residuals to the residual pulse accumulator 23, which is a subtracting counter with a capacity equal to the capacity of the accumulation unit of the impulses block 3, n the trigger signal transmission block 20. The trigger transmission block 20 forms a pulse The additions are received through the communication line 13, the receiving and transmitting units 5 and the control units 4 to the accumulation units 0 3 of all CPs. At the same time, at the control station, which did not finish the measurements, after the arrival of the stop signal, it is calculated in the blocks of the tip lounges and pulses 3, which give the signal the end of filling as they are filled with the increment pulses. The signal "end of filling through the communication line enters channel forming units 16 and then to the corresponding signal receiving unit 28, which outputs a signal to the flow meter and the address of the object 17. The driver of the stream number and the address of the object 17 sends a signal to the information processing block 18 after selecting the address of the block receiving signals 28, from which the signal was pinched. When processing the flow rate, the measurement of the accumulation pulse block 3, in this case, the value of the number of pulses accumulated for the meter, enters the information processing unit 18 from the incremental pulse accumulator 23. After the completion of all the accumulation of pulse accumulators 3 and 0 registering information on the expenses of the measured parameters, the drive of the addition pulses is nullified and the control unit 19 supplies, via the transmission unit of the starting signals 20, a " polling signal " coming to the control units 4 of all CPs. The control unit 4 times45 decides the arrival of the pulses of the increment generated by the generator of the pulses of the increments 22 and the block of transmission of the trigger signals 20 to the input of the polling unit of the position signal sensors 7. Simultaneously the pulses of the increments

50 are fed to the accumulator of the pulses to the set-up 23. The polling unit for the sensors of positional signals 7 is a multistable element (a counter with a decoder, etc.) with a number of outputs equal to the number of connected position sensors

55 signals. When pulses are received at its input, the increments are sequentially shifted from position "1 to position p. By sending a signal to AND 10, 11 elements, the presence of signals from position sensors and signals on inputs 14, 15 elements I K is checked), 11, If there is a signal from the sensor and the input (naiimer, 14) of the element 10, the first imiu; 1 second, having sent the position signals 7 to the polling unit of sensors of positional signals 7 through the element 10 and the element OR 12, goes to the input of the control unit 4. When This control unit 4 generates a match signal via the receive unit and transfer 5 and channelization unit 6 .to the communication line 3. This signal goes through the channelization unit to the corresponding signal reception unit 28, which outputs a signal to the stream number and object address 17 generator. After selecting the address, the address of the signal reception unit 28, s which came sigia, 1, and the registration of the number of impulses of the data output, received on the communication line 13 and, accordingly, the accumulator of impulses of the output 23, corresponding to the number that sent the Signal signal of the position signal sensor. At the end of the polling, the control unit 19 sends ()) the number of the flow and the address of the object 17 to the second number of the flow meter and the CSC; 1 measurement is repeated. The gauges 1 of all KPs are transferred to the measurement of the next stream, as the signal "the end of the measurement or the" end of the 1P1 signal is issued. In the event of an emergency at the control unit, the driver of the alarm signals 9 generates an alarm signal to the receiving unit and | 5) 5, which through the block of the formed signal 6 will enter the eshzi line. The alarm signal will go to the ground, C () () n; the block that exists:: Cr; gn; 1 28, the KOTopoix output signal) will in turn turn on the FFM1; atom,; 1 stream number and address 17. After the end of the choice of the address of the iron: the address and type of the accident (accident “1 or accident” 2),

The proposed expansion of the functionality of the device will increase the amount of information received over fixed time intervals (for example, per day); at the same time, the organization of the mode of reaching the blocks of pulse accumulation 3 at all the control centers allows organizing re .-: -; and .m operation with a small limiting measurement time (feed control mode). In this case, in a short time interval 1, information will be received 11, and about the flow of the measured flow through the meters of all KP.

Claims (1)

1. USSR author's certificate To 506897, cl. G 08 C 19/28, 1974.