SU1104471A1 - Multichannel device for checking thermal power quality parameters - Google Patents

Abstract

MULTI-CHANNEL CONTROL DEVICE FOR QUALITY HEATING QUALITY PARAMETERS containing sensors whose outputs through the voltage normalizers are connected to the corresponding information inputs of the multichannel analog-digital converter, the information output of which is connected to the first information input of the adder, the output of which is connected to the register input of the register generator, and the register output of the register generator, which has a register output. with an information output unit, characterized in that, in order to expand its functionality and increase its speed actions of the device, a signal distribution unit, two memory blocks and a start unit, whose outputs are connected to the trigger inputs of the signal distribution unit, the first and second control outputs of which are connected to the first and second control inputs of the multichannel analog-digital converter, the first and the second control outputs of which are connected to the first and second control inputs of the signal distribution unit, the control input of the register is connected to the third control output of the distribution unit signals, the fourth and fifth control outputs of which are connected to the first and second control inputs of the first memory block, the first information output of which is connected to the second information input of the adder, the first address input of the first memory block is connected to the first address input of the second memory block and by the output output of the multichannel analog-digital i converter, the information input of the first memory block is connected to the information input of the second memory block and the register output, the first and second controllers in Odes of the second power unit are connected to the sixth and seventh control outputs of the signal distribution unit, the eighth control output of which is connected to the control input of the computing unit whose control output is connected to the third 4: control input of the signal distribution unit, the second information output of the first the memory unit is connected to the first informational vj input of the computing unit, the first address output of which is connected to the second address input of the first memory unit, the information output of the second Lok memory coupled to a second data input of the computing unit, the second address output connected to the second address input of the second block memory.

Description

The invention relates to a measuring technique, is intended to monitor the parameters of the quality of thermal energy and account for it in the heating system of the consumer, and can be used both in the Composition of automated information-measuring systems for the accounting and control of thermal energy, and self-monitoring for quality control and accounting of thermal energy. energy to heat x. A device for monitoring parameters used to measure thermal energy parameters is known, comprising sensors, normalizers, voltages, a voltage-to-voltage converter, a code, and a number of additional units that implement the numerical method for determining the specified parameters l. The closest to the invention to the technical essence is a device for controlling parameters, containing sensors, the outputs of which through voltage normalizers are connected to the corresponding information inputs of a multichannel analog-to-digital converter, a memory unit on registers, a processing unit with indication and a control unit with the appropriate connections, providing the determination of parameters by numerical methods. 2j. The disadvantages of the known device are insufficient functional capabilities, as well as low speed and accuracy. Since the conversion of measured values is performed alternately, the accuracy is determined only by the accuracy of conversion, an attempt to improve the accuracy of measurements by increasing the number of conversions of the same values, followed by determining the average value leads to a proportional decrease in speed, the purpose of the invention is to improve the functionality account performance FUNCTIONS of accounting. Thermal energy. and also increase in speed. The goal is achieved by those. that the device containing sensors whose outputs through voltage normalizers are connected to the corresponding information inputs of a multichannel analog-to-digital converter, whose information output is connected to the first information input of the adder, the output of which is connected to the information input of the register, the computing unit connected with the information output unit, a signal distribution unit, two memory units and a launch unit, the outputs of which are connected to the trigger inputs of the signal distribution unit, are entered, - The first and second control outputs of which are connected to the first and second control inputs of the multichannel analog-digital converter, the first and second control outputs of which are connected to the first and second control inputs of the signal distribution unit. The control input of the register is connected to the third control the output of the signal distribution unit, the fourth and fifth control outputs of which are connected to the first and second control inputs of the first memory block, the first information output of which is connected to volts eye information input of the adder, the first address input of the first memory block is connected to the first address input of the second memory block and the address output of the multi-channel analog-digital converter, the information input of the first memory block is connected to the information input of the second memory block and the register output, and the second control inputs of the second memory block are connected to the sixth and seventh control outputs of the signal distribution unit, the eighth control output of which is connected to the control input of the calculator unit whose control output is connected to the third control input of the signal distribution unit, the second information output of the first memory block is connected to the first information input of the computing unit, the first address output of which is connected to the second address input of the first memory block, information output of the second block the memory is connected to the second information input of the computing unit, the second address output of which is connected to the second address input of the second memory block. The drawing shows a block diagram of a multichannel device for monitoring thermal energy quality parameters simultaneously c. points of a thermal network. The device contains sensors 1, normalizers 2 voltages, multichannel analog-digital converter 3, adder 4, register 5, first memory block 6, second memory block 7, signal distribution block 8, start block 9, computing block 10 and block 11 output information. The device works as follows. For each of the V points of quality parameters control and heat energy accounting, K sensors of different sensors are installed, giving full information about the monitored parameters

and the consumption of heat energy. The signals that I receive are converted by normalizers 2 to voltage into unified electric signals of a constant voltage. Thus, the total number of conversion channels is ipaBHoKf /.

The start-up unit 9 outputs to the signal distribution unit 8 two series of time stamps, the first of which triggers the multichannel analog-to-digital converter 3 with an interval determined by a given energy metering accuracy. A second series of time stamping launches the same multichannel analog-to-digital converter 3 with an interval specified for monitoring thermal energy quality parameters.

The output signals of the voltage normalizers 2 are fed to the information inputs of the multichannel analog-digital converter 3, from the information output of which the converted values in the binary-decimal code through the adder 4 and the register 5 arrive at the information inputs of the first and second blocks 6 and 7 of memory, where depending on the combination of time stamps, they are remembered either in fixed cells of the first memory block 6 for energy accounting or in fixed cells of the first and second memory blocks 6 and 7 for thermal energy and for calculating quality parameters, since the first and second series of labels of the launching unit 9 are multiples of each other. The information accumulated in the first memory block 6 is intended for energy accounting and is updated at intervals specified by the first series of time stamps of the start block 9. Information; accumulated in the second memory block 7 is designed to calculate the parameters of the quality of thermal energy and is updated at intervals specified by the second series of time stamps of the start block 9. Each measured parameter is allocated a corresponding fixed memory cell in the first and second blocks b and 7 of memory.

Upon receipt of the code of the converted value from the information output of the multichannel analog-digital converter 3 to the first

j) the formation input of the adder 4 to its second information input from the first memory block 6 calls the content code of the fixed cell corresponding to the parameter being measured, and then their sum is recorded through register 5 at the same fixed address. Thus, in each memory cell there is an accumulation of the sums of the codes of the transformed parameters of the same name for measurements. For further processing, the codes from blocks 6 and 7 of the memory are extracted with the changed position of a comma transferred one decimal digit to the left, which corresponds to dividing by 10 and obtaining the average value of the parameter. This technique allows to reduce the random component of the error, and the measurements by a factor of 10 times.

After the completion of the measurement cycle, the computing unit 10 calculates and accumulates the consumption of thermal energy, and with a different surface calculates the parameters of the quality of thermal energy using numerical methods.

Before the beginning of a new measurement cycle, the cells are zeroed either at the first or at the same time of the first and second blocks 6 and 7 of memory, depending on the output-to-combination. signaling unit 9.

The proposed structure of the multichannel device control; the role of the parameters of the quality of thermal energy makes it possible to expand its functionality by c-jeT performing the function of accounting for thermal energy; improve the accuracy of e | i1x measurements by averaging ten measurements of the same name; to increase its speed, since the information is stored in the second memory block also during the measurement cycle, and consequently, there is no need to rewrite the information in another memory zone of the computing unit (ecntt rejects the second memory block) and part of the time is saved. Considering that the frequency of measurement cycles for energy accounting is quite frequent, this time saving is significant,

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Claims (1)

MULTI-CHANNEL DEVICE FOR MONITORING THE QUALITY OF HEAT ENERGY QUALITY PARAMETERS, containing sensors whose outputs are connected via voltage normalizers to the corresponding information inputs of a multi-channel analog-to-digital converter, the information output of which is connected to the first information input of the adder, the output of which is connected to the information input of the register, a computing unit information output unit, characterized in that, in order to expand functionality and improve performance device, it contains a signal distribution block, two memory blocks and a trigger block, the outputs of which are connected to the trigger inputs of the signal distribution block, the first and second control outputs of which are connected to the first and second control inputs of a multi-channel analog-to-digital converter, the first and second control the outputs of which are connected to the first and second control inputs of the signal distribution unit, the control input of the register is connected to the third control output of the signal distribution unit, the fourth and fifth control outputs of which are connected to the first and second control inputs of the first memory block, the first information output of which is connected to the second information input of the adder, the first address input of the first memory block is connected to the first address input of the second memory block and the address output of multi-channel analog digital converter, the information input of the first memory unit is connected to the information input of the second memory block and the output of the register, the first and second control inputs of the second block The memory is connected to the sixth and seventh control outputs of the signal distribution unit, the eighth control output of which is connected to the control input of the computing unit, the control output of which is connected to the third control input of the signal distribution unit, the second information output of the first memory unit is connected to the first information input of the computing unit, the first address output of which is connected to the second address input of the first memory block, the information output of the second memory block is connected to the second information input of the computing unit, the second address output of which is connected to the second address input of the second memory block. '1