SU1161978A1 - Device for calculating current estimation of average value - Google Patents

Abstract

A DEVICE FOR CALCULATING THE CURRENT EVALUATION OF THE AVERAGE VALUE, comprising a pulse generator, a serially connected first pulse counter and a digital-to-voltage converter, a second pulse counter, the first and second elements AND, the first information channel consisting of a pulse counter and a comparator, the first input of which is connected to the digital-analog output channel converter, so that, in order to increase the informativity of the device, additional information channels are introduced into it, each of which x contains a differential amplifier, the first and second DF analogue converters, a comparator, a pulse counter and a memory register; a differential amplifier, the first and second memory analogue converters, and a memory register are entered into the first information channel; the outputs of the second pulse counter are connected directly to the corresponding first inputs first digital-to-analog converters of information channels and through the first element I - with the synchronizing input of the pulse generator, the output of which is connected with the first inputs of pulse counters of information channels and with the input of the first pulse counter, the outputs of which are connected via the second element I to the input of the second pulse counter and with the first inputs of memory registers of information channels, the first inputs of the comparators of additional information channels are combined and connected to the output of the digital-analogue converter, in each information channel, the output of the differential amplifier is connected (L to the second input of the first digital-analog converter, the output of which It is connected to the second input of the comparator, the output of the comparator is connected to the second input of the pulse counter, the output of which is connected to the second input of the memory register, the output of the memory recorder is connected to the input of the second digital-to-analog converter GD, the output of which is connected to the first input of the differential vi amplifier, the second differential inputs (CX) of the special information channel amplifiers are the device inputs, the outputs of the memory channels information registers are the first device outputs, and the outputs of the second digital-analogs The data channel converters are the second outputs of the device.

Description

This invention relates to an automaton; tick and information-measuring technology and is intended for use in instrumentation systems, systems of optimal control and express signal processing.

The following averaging device is known, which contains a comparator, the first and second elements AND, the reverse counter, the code-converter, the control unit and the clock frequency generator Ш

The disadvantage of this device is low speed at determining the average value.

The closest in technical essence to the present invention is a device comprising a comparator, the first output of which is connected to the first inputs of the first and second elements AND, the second output is connected to the first inputs of the third and fourth elements AND, the outputs of the first and third elements AND are connected respectively to the first and second inputs of the first pulse counter, the outputs of which are connected to the corresponding inputs of a digital-to-analog converter, the output of which is connected to the first inputs of the comparator, the second input of which is the input of the device, the outputs of the second and fourth elements AND connect, respectively, with the first and second inputs of the pulse counter, the outputs of which are the outputs of the device, the pulse generator, the output soy; dinen with the second inputs of the first and third elements And and with the first input of the control unit containing the first and second counters and wires, the decoder, the block of elements And, the element SH, the third output of the comparator is connected to the second input of the etching unit, the output of which is connected to the second inputs of the second fourth elements And 2.

The disadvantage of this device is low information content, due to the impossibility of simultaneously calculating the current estimates of the average value of several of the studied processes.

The purpose of the invention is to increase the information content of the device. one

The goal is achieved

so that, in a device for calculating a current estimate of the average value, comprising a pulse generator, connected in series. the first pulse counter and digital-analog converter, the second pulse counter, the first and second elements AND, the first information channel consisting of a pulse counter and a comparator, the first input of which is connected to the output of the digital-analog converter, introduced additional information channels, each of which contains a differential amplifier, the first and second digital-to-analog converters, a comparator, a pulse counter and a memory register, a differential amplifier is introduced into the first information channel, the first and the second digital-to-analog converters and the memory register, the outputs of the second pulse counter are connected directly to the corresponding digital-to-analog converters of the information channels corresponding to the nepBtOMH inputs and, through the first element I, to the synchronization input of the pulse generator, the output of which is connected to the first inputs of information channel pulse counters and to the first input pulse counter, the outputs of which are connected through the second element And with the input of the second pulse counter and with the first input registers p m ti invariant. formation channels, the first inputs of the comparators of the additional information channels are combined and connected to the output of a digital-to-analog converter; in each information channel the output of the differential amplifier is connected to the second input of the first digital-analog converter, the output of which is connected to the second input of the comparator, the output of the comparator is connected to the second input of the pulse counter, the output of which is connected to the second memory register input, the output of the memory register is connected to the input of the second digital-to-analog converter A diverter whose output is connected to the first input of a differential amplifier, the second inputs of differential information channel amplifiers are device inputs, the codes of information channel memory registers are the first device outputs, and the outputs of the second digital channel information channel converters are the second outputs of the device. The drawing shows the block diagram of the device. The device contains in each information channel a differential amplifier 1, a first digital-to-analog converter (DAC) 2, a comparator 3, a pulse counter 4, a memory register, a second digital-to-analog converter 6. The device also contains a generator of 7 pulses, the first counter of 8 pulses, a digital-analog converter 9 , the second pulse counter, the first 11 and second 12 elements And, the first information channel 13, additional information channels 14. The device works as follows. The input values (signals) X., .Hl ... X ... X are fed to the second (direct) inputs of the differential amplifiers 1 of the corresponding information channels. The generator 7 impulses of the first 8 and second 10 pulse counters, the digital-to-analog converter 9, the first 11 and the second 12 elements And form a generator of cyclically changing the km of the unrolling voltage Xp supplied to the first inputs of the co-drivers 3 I1 of the channels. The first (digital inputs of multiply digital-to-analog converters -2 information channels) feeds the code from the outputs of the second counter of 10 cycles. The code value determines the transmission coefficient of the digital-analog converter 2 and changes as the number of averaging cycle changes, remaining constant during each cycle. The number of cycles L, during which the current estimates of the average value of the input values are determined, is determined by the corresponding connection of the inputs of the element 11 to the outputs of the second pulse counter 10. In the initial state The counters 4 and the registers 5 of the information channels memory, as well as the first counter 8 pulses are cleared. The output voltages are not digital-to-analog converters 6 and 9 information channels and the generator of the unwrapping voltage are zero. When the second counter of pulses clears 10, pulses appear output of generator 7, changing the contents of the counters 4 information channels and the level of the sweep voltage X p. At the moments when the sweep voltage reaches the value. (. where Xj- is the input value value of the i-th information channel of the device in the jth averaging cycle;, ij- is the output value of the 1st information channel in the (jl) -oM averaging cycle; KIJ; 1 is the transfer coefficients differential seals 1; V i I, 1, -j P transfer coefficients of multiplying DAC 2 in the ith cycle of averaging, one or several comparators 3 are triggered and the pulse of the generator 7 to the counter 4 of the corresponding channel is stopped. stress It detects the operation of comparators 3 in all N channels. At the moment when the sweep voltage Xp reaches the maximum value at the output of the second logical element 12, a logical unit appears, under the influence of which the content of the counter 10 cycles changes by one and the contents of the counters 4 are recorded channels to the corresponding memory registers 5, and, consequently, the codes on the first (digital) outputs of the device C1, C and the voltages on the second (analog) outputs A1, A are changed. Since m cycle averaging 1 c. l, then the DAC 6 information channels form analogue values A1, A, whose values are Hb .h, -, X;, - j. In the second cycle, the second inputs of the comparators 3 are affected by quantities whose value at the moments of operation of the comparators are equal, Y2, so 1/2.

Since in meters 4 the previous measurement result is saved, then at the end of the second averaging cycle, the contents of counters 4, memory registers 5, and the value of the output values of the D / A converter 6 will be

units, under the influence of which the pulse generator 7 stops working. This completes the process of determining the current estimates of the average value of the input values during I, averaging cycles.

Claims (1)

A DEVICE FOR CALCULATING A CURRENT EVALUATION OF AN AVERAGE VALUE, comprising a pulse generator, serially connected a first pulse counter and a digital-to-analog converter, a second pulse counter, the first and second I elements, a first information channel consisting of a pulse counter and a comparator, the first input of which is connected to the output of the digital-to-analog converter , characterized in that, in order to increase the information content of the device, additional information channels are introduced into it, each of which contains a differential a differential amplifier, a first and second digital-to-analog converters, a comparator, a pulse counter and a memory register, a differential amplifier is introduced into the first information channel, a first and second digital-to-analog converters and a memory register, the outputs * of the second pulse counter are connected directly to the corresponding first inputs of the first digital-to-analog converters of information channels and through the first element And - with the clock input of the pulse generator, the output of which is connected to the first inputs of the account pulse counters of information channels and with the input of the first pulse counter, the outputs of which are connected through the second element And with the input of the second pulse counter and with the first inputs of the memory registers of the information channels, the first inputs of the comparators of additional information channels are combined and connected to the output of the digital-to-analog converter, in each information channel the output * of the differential amplifier is connected to the second input of the first digital-to-analog converter, the output of which is connected to the second input of the computer at the output, the comparator output is connected to the second input of the pulse counter, the output of which is connected to the second input of the memory register, the output of the memory register is connected to the input of the second digital-to-analog converter, the output of which is connected to the first input of the differential amplifier, the second inputs of the differential amplifiers of information channels are device inputs, the outputs memory registers of information channels are the first outputs of the device, the outputs of the second digital-to-analog converters of information channels are second outputs of the device. £ U. „1161978