SU1068711A1 - Device for registering and checking measured parameters - Google Patents

Abstract

A DEVICE FOR REGISTRATION AND CONTROL OF MEASURED PARAMETERS, containing sensors of measured parameters, pulse counter, control trigger, crystal oscillator connected to a frequency divider, control unit, startup unit, recording unit, characterized by the fact that, in order to increase the economic efficiency of the device , injected into input shapers, n output amplifiers, multiplexer, bus decoder, address issuing unit, register, first and second storage units, first, second, third and fourth distribute The new blocks, the write-read switch, the address switch, the information processing block, the program block and the block for issuing information for registration, the sensors of the measured parameters are included in the mxn matrix nodes, the output amplifiers are connected to the buses, and the m input drivers, the outputs of which are connected to the inputs of the multiplexer, to the input of which the output of the address issuing unit is also connected, connected to the first input of the first memory of the block, the first input of the address switch and the bus decoder of the output which are connected to the inputs of the output amplifiers, the first output of the control unit is connected to the input of the address output unit. The output of the crystal oscillator is connected to the first input, the output of the control trigger connected to the write and read switch and the address switch are connected to the second, and to the input of the first distribution unit is connected the output of the register, also connected to the second input of the first storage unit, to the second output of the control unit and to the output of the multiplexer, the third output of the control unit with Connected to the third input of the first storage unit, the output of which is connected to the third register input, while the output of the address switch is connected to the first input of the second storage unit J, the output of which is connected to the first input of a pulse counter connected to the second input through the second distribution unit the output of the first distribution unit, and the fourth output of the control unit, the fifth output of which is connected to the third input of the pulse counter, C35 00, is connected to the second input of the second distribution unit connected via the third distribution block to the second input of the second memory of the block, to the third input of which is connected the output of the write-read switch connected to the sixth output of the control unit, the first output of which is also connected to the first input of the fourth distribution block connected to the output with the first input control trigger, the output of which is connected to the second input of the third distribution unit, and to the input of the registration unit through the information output unit for registration chen first output information processing unit, a second input and whose output is connected respectively to the input and output program unit, the third output is connected;

Description

to the third input of the write-read switch, and the fourth, fifth and sixth outputs of the information processing unit are connected respectively to the third input of the address switch, to the second input of the fourth distribution block and to the second

to the control input to the dego trigger, and to the second, third and fourth inputs of the information processing unit, respectively, the output of the second unit is connected, the output of the frequency divider and the output of the trigger unit.

one

The invention relates to information-measuring technology and can be used to measure the recording and monitoring of process mode parameters or parameters of a multi-parameter process under study, in particular, in systems for collecting, recording and controlling energy carriers (gas, water, thermal energy, electrical energy);

A multi-channel digital measurement and recording device is known, comprising an analog-to-digital converter, a reversible counter, a triggering unit, a switch and a tl 1 recorder.

However, in this device, a pulse counter is applied to each communication channel, which increases the hardware costs, and, in addition, it has limited capabilities for monitoring measured parameters.

The closest in technical essence to the invention is a device for measuring and recording information, comprising process parameters sensors, distribution circuits AND, pulse counters, time interval presets, crystal oscillator, connected to a frequency divider, control trigger, interrogation register, counter current time, control unit, registration unit, ORing unit, decoder, amplifier, start-up unit 2.

The disadvantage of this device is the presence on each sensor of an individual communication line and hardware redundancy (for each measured channel about two pulse counters), which increases the cost of the device.

The purpose of the invention is to increase the economic efficiency of the device.

The goal is achieved by the fact that a device containing sensors of measured parameters, a pulse counter, a control trigger.

crystal oscillator connected to a frequency divider, control unit, start-up unit, registration unit, input power supply drivers, n output amplifiers, multiplexer, bus decoder, address output unit, register, first and second storage units, first, second, second, third and distribution blocks,

O write / read switch, address switch, information processing block, program block and block of information output for registration, with the sensors of measured parameters

c are included in matrix nodes of size m hp, buses with output amplifiers included, and buses m with input drivers, the outputs of which are connected to the multiplexer inputs, the input of which is also connected to the first input of the first storage unit , the first input of the address switch and with the bus decoder, the outputs of which are connected to the inputs of the output amplifiers, the first output of the control unit is connected to the input of the address output unit, to the first input of which the output of the quartz oscillator is connected, to the second, the output of the control trigger, also connected to the write and read switch and the address switch, the output of the register connected to the input of the first distribution block is connected

5 also to the second input of the first storage unit, to the second control unit code and to the multiplexer output, the third control unit output is connected to the third input of the first memory of the unit, the output of which is connected to the third register input, and the output of the address switch is connected to the first input of the second storage unit, the output of which is connected to the first input

pulse counter connected to the second input through the second distribution unit with the output of the first

the fourth output of the control unit, the fifth output of which is connected to the third input of the pulse counter, connected via an output of the third distribution block to the second input of the second storage unit, to the third input of which the output of the writing switch is connected with the sixth output of the control unit, the first output of which is also connected to the first input of the fourth distribution block, connected by an output to the first input control trigger house whose output is connected to the second input of the third distribution block, and the first output of the information processing block is connected to the input of the registration block via the information register, the third output is connected, respectively, to the input and output of the program block to the third input of the write-read switch, and the fourth, fifth and sixth outputs of the information processing unit are connected respectively to the third input of the address switch to the second input of the fourth This distribution block and the second input of the control trigger, and the second, third and fourth inputs of the information processing unit are connected respectively to the output of the second storage unit, the output of the frequency divider and the output of the trigger unit.

The drawing shows a block diagram of a device for recording and monitoring measured parameters.

The device contains sensors, 1.1, ..., 1.N of the measured parameters included in the matrix nodes of size mxn, the buses whose output amplifiers are 2.1, ..., 2.n, and the GT1 buses include the input drivers 3.1,. .., З.т, are transistor switches for level conversion of input signals. Input shapers 3.1, ..., З.т are connected to the inputs of multiplexer 4 (for which you can use the K155KP1 multiplexer chip), to the input of which is also connected the output of block 5 of the address, which is a K-bit binary counter, connected also to the bus decoder, the outputs of which are connected to the inputs of output amplifiers 2.1, ..., 2n. The first input of the control unit 7, which is a multiphase pulse generator consisting of a pulse counter and a decoder, is connected to the input of the address issuing unit 5. The output of the control unit 7 is connected to the first input of the control oscillator 9, connected to the frequency divider 9. The output of control trigger 10 is connected to the second input of control unit 7. The input of the first distribution unit 11, which is the I-NOT logic, is NOT connected to the first input of the first storage unit (GB) 13, the second input of which is connected to the second output of the control unit 7, the third output of which is connected to the first input of the register 12, to the second input of which the output of the multiplexer 4 is connected, and to the third input of the register 12 the output of the first storage unit 13 is connected, to the third input row which is connected the output of unit 5 vzdachi address. The output of the address block 5 is connected to the first input of the address switch 14, the output of which is connected to the first input of the second storage unit (SC) 15. The output of the latter is connected to the first input of the pulse counter 16, to the second input of which the output of the second distribution block 17 is connected is a set of two-input logic circuits AND-NOT. The output of the first distribution unit 11 is connected to the input of the second distribution unit 17. The fourth and fifth outputs of the control unit 7 are respectively connected to the second input of the second distribution unit 17 and the third input of the counter 16 of them. The output of the 16-pulse counter is connected to the first input of the third distribution block 18, which is a set of two-input logic circuits AND-NOT whose output is connected to the second input of the second storage unit 15. To the third input of the second storage unit 15, the output of the read / write switch 19 is connected To the first input of which the sixth output of the control unit 7 is connected, the first output of which is connected to the first input of the fourth distribution unit 20 (two-input NAND circuit), the output of which is connected to the first input control trigger 10 connected to the second input of the write-read switch 19, the second input to the address switch 14 and the second input of the third distribution unit 18. The output of the second storage unit 15 is connected to the second input of the information processing unit 21 (as a processing unit information, you can use any microcomputer, for example, Electronics SB-12, Electronics C5-21, Electronics C5-31, consisting of a microprocessor, random access memory, read-only memory, input-output devices yes, clock pulse generator and control logic). The first output of information processing unit 21 is connected to registration information block 22, which is standard communication adapters with recording devices, for example, microcomputer communication adapters C5-12 Electronics with a telegraph device (C5-124 Electronics adapter) with a perforator ( Dapter Electronics C5-123) or other adapters, providing information for registration. to the output of the block 22 issuing information for registration is connected to the input unit 23 of the registration. The second output of the information processing unit 21 is connected to the input of the software unit 24, which is a permanent memory cell or a reprogrammable permanent storage device, the first, third and fourth inputs of the information processing unit 21 are connected to the outputs of the program unit 24, frequency dividers 9 and unit 25 launch (remote control). The third, fourth, fifth and sixth outputs of the information processing unit 21 are connected respectively to the third input of the write-read switch 19, the third input of the address switch 14, to the second input of the fourth distribution block 20 and to the second input of the control trigger 10. The device for registering and the monitoring of the measured parameters works as follows. The bus decoder, to the input of which the starting address from the address block b is received, sends an output signal 2.1 through the output amplifier 2.1 to interrogate the status of the first sensor group 1.1, .. ,, 1 .t. As a result, the first m sensors 1.1, ..., 1.P1 are connected to the inputs of multiplexer 4 through the input shapers 3.1, ..., 3.IT1. Since the address address block is set to 5, the starting address is set, the state of the first sensor 1.1 is transmitted to the input of the h-bit register 12 via the multiplexer 4 p. The data inputs of register 12 from the first STZ 13 receive information about the state of sensor 1.1 in the previous sensor polling cycles. According to the signal of the sensor 7 control information about the state of the sensor 1.1 in the preceding r polling cycles of the sensors stored in the first ST 13, it is recorded in the register 12 and the signal of the control unit 7 registers the information by one bit to the right. As a result, in the first discharge of register 12, information about the state of sensor 1.1 is found at the moment of polling. The signal of the control unit 7 in the first ST13 13 at the starting address records the output data of register 12 and, in addition, this data is fed to the input of the first distribution unit 11, the output of which appears to be a signal only when the code of the input signal corresponds to the code useful signal. Such an organization of receiving information allows not only to receive a useful signal, but also to filter out the short-term interference that occurs in the communication line, which increases the noise immunity and reliability of receiving information. At the start address received from the address issuing unit 5 via the address switch 14, the information of the second ST 15 arrives at the data inputs of the pulse counter 16 and is recorded by the signal of the control unit 7 into the pulse counter 16. Further, the output information of the first distribution unit 11 via the second distribution unit 17 is summed by the signal of the control unit 7 with the contents of the pulse counter 16. On a signal from the control unit 7. through the write switch 19, in the second STZ 15 at the starting address specified by the address issuing unit 5, the output of the pulse counter 16 is input to the data inputs of the second ST 15 through the third distribution unit 18. With the arrival of the last signal from the control unit 7, the output unit 5 addresses generates an address for polling sensor status 1.2. The process of polling sensor 1.2 is similar to that previously described. After polling the first gp sensors (1.1, ..., 1. T) by block 5, the address is transmitted through the bus decoder 6 buses and via the output amplifier 2.2 to the second of the pins of the next m sensor. The operation of the control unit 7 (therefore, the sensor sampling frequency) is controlled by a crystal oscillator 8. After the time 4t generated by the crystal oscillator 8 and the frequency divider 9 and generated by the information processing unit 21, the signal from the output of the fourth distribution unit 20 . After the signal from the control unit 7 arrives at the second input of the fourth distribution unit 20, the control trigger 10 changes its state, as a result, the control unit 7 and the third distribution unit 18 are blocked, and the inputs of the address switch 14 and the read / write switch 19 the output of the control trigger 10 receives a signal that switches the switches 14 and 19 to work from the outputs of the information processing unit 21. According to the addresses and read-write signals generated by information processing unit 21 arriving at the inputs of the second ST 15 through the address switch -14 and the read switch 19, the data from the second ST 15 is written into the memory cells of the information processing unit 21, and second stb 15 is zeroed. After that, the signal from the information processing unit 21 triggers the switch 10, as a result, the control unit 7 and the third distribution unit 18 are released, and the address switch 14 and the read / write switch 19 are switched to operate, respectively, from the address issuing unit 5 and from the control unit 7. The input information processing algorithm is recorded in the permanent storage device (ROM) of the information processing unit 21. In the ROM of block 21, the algorithm for generating the current time by time stamps arriving from the crystal oscillator 8 through the frequency divider 9 is also recorded. The coefficients of bringing the input information to a single standardized value, signs of information compatibility, as well as time stamps in which information should be recorded for registration, are recorded in program block 24. The information processed in block 21 enters the inputs of block 22 for issuing information for registration at block 21 and registers in block 23. In addition, it is possible to register information on the call using the start block 25 (control panel). According to a given algorithm, the information processing unit 21 calculates the predicted value of the measured parameter with a predetermined lead time and compares the predicted value with the control values, providing forward control of the measured parameter. The proposed design of a device for recording and monitoring measured parameters is more economical than the known one. Moreover, an increase in even the number of sensors of measured parameters (twice) in the proposed device leads to a slight increase in its cost (from 12 to 20% depending on the length of communication lines), while an increase in sensors in the known device leads to an increase in its cost is 95-101%.

UD

Claims (1)

DEVICE FOR REGISTRATION AND MONITORING OF MEASURED PARAMETERS, containing sensors of measured parameters, pulse counter, control trigger, crystal oscillator connected to a frequency divider, control unit, trigger unit, registration unit, characterized in that, in order to increase the economic efficiency of the device, it input shapers, η output amplifiers, multiplexer, bus decoder, address block, register, first and second memory blocks, first, second, third and fourth distribution blocks are introduced and, a write-read switch, an address switch, an information processing unit, a program unit and a registration information output unit, the sensors of the measured parameters being included in the nodes of the matrix of size mxn, on the buses η of which the output amplifiers are connected, and on the buses m are the input shapers the outputs of which are connected to the inputs of the multiplexer, the input of which is also connected to the output of the address output unit, connected to the first input of the first storage unit, the first input of the address switch and with the bus decoder ^ whose outputs are connected They are connected to the inputs of the output amplifiers, to the input of the address output unit. The first output of the control unit is connected, the output of the crystal oscillator is connected to its first input, the output of the control trigger connected to the write and read switch and the address switch, and to the input of the first the distribution block is connected to the output of the register, also connected to the second input of the first storage unit, to the second output of the control unit and to the output of the multiplexer, the third output of the control unit is connected to the third input the first memory block, the output of which is connected to the third input of the register, while the output of the address switch is connected to the first input of the second memory block, the output of which is connected to the first input of the pulse counter, / L connected to the second input through m ** the second distribution block with the output of the first distribution block, and the fourth output of the control unit is connected to the second input of the second distribution block, the fifth output of which is connected to the third input of the pulse counter connected to the output through The distribution block to the second input of the second memory block, to the third input of the remote control switch, is also connected to the first input of the fourth distribution block, connected by the output to the first input of the control trigger, the output of which is connected to the second input of the third distribution block, and to the input of the block registration through the unit for issuing information for registration connected to the first output of the information processing unit, the second output of which and the input are connected respectively to the input and output of the software unit, the third output is connected; □ About which the write-read output is connected, with the sixth output of the block the first output of which is to the third input of the write-read switch, and the fourth, fifth and sixth outputs of the information processing unit are connected 'respectively to the third input of the address switch, to the second input of the fourth distribution block and to the second input of the control trigger, and to the second, third, and fourth inputs of the information processing unit, the output of the second storage unit, the output of the frequency divider, and the output of the start block are connected.