SU920740A2 - Multichannel device for selecting average quantity minimum value - Google Patents

Description

I

The invention relates to the field of automation and computer technology and can be used in the development of recognition, extreme systems, in the analysis and processing of information.

According to the main author. St. No. 744610, a multichannel device for selecting a minimum value of an average value is known, comprising n channels, each of which consists of a series-connected sensor and a voltage frequency converter, the output of which is connected to the first input of the averager, the output of which is connected to the input of setting the unit of the memory element and with the first input of the element And, the second input of which is connected to the output of the memory element, the output of the element And connected to the input of the indicator, the second inputs of averagers of all channels are combined with the inputs setting the memory elements to zero and connected to the output of the delay line, the input of which is combined with the third inputs of the AND elements of each channel and connected to the output of the OR element, the output of the channel memory element is connected to the corresponding inputs of the OR element and the former, the outputs of which are connected to the corresponding inputs of the distributor, the outputs of which are connected to the first inputs of the corresponding memory cells, the second inputs of which are combined with the installation input to the zero of the counter and are the installation input to the zero device TWA, (n +, 1) -former output is connected to the counting input of the counter, the output of which is connected to the (n + 1) input of the distributor Cl.

This device provides channel data with a minimum average voltage and channels with average multiples of the minimum average. In addition, it allows to determine the ranks of the input voltages, i.e. SEARCH the sequence number of the channel depending on the ratio of average voltages in the channels, for example, assign the channel n with the minimum voltage to the rank n, to the channel with the next average ascending - rank n-1, etc. to rank equal to one in the channel with the maximum average.

However, in practice, along with the qualitative assessment of the relationship between the voltages in the channels, which is determined by their ranks, it is also necessary to know the quantitative assessment, i.e. know how many times the voltage in the channel is less than the voltage in the channel with the maximum average.

The need for such an assessment arises when testing structures, when it is important to obtain a quantitative assessment of the strength of various points, as well as in a number of other technological applications, for example, when assessing the degree of signal transmission or noise level in communication channels at different frequencies.

The aim of the invention is to enhance the functionality of the device by determining the quantitative ratios between the input voltages.

The goal is achieved by the introduction of a time interval measurement block, an additional pulse shaper, a switch, an OR element, a block h. In addition to the multi-channel device for selecting the minimum value of the average value, and the first input of an additional element is entered into each channel. And in each of the channels is connected to the output of the averager of this channel, the second input of the additional element And is connected to the corresponding output of the prohibition block, the outputs of the additional elements And connected to the corresponding inputs of the OR element, the output of which is connected to the input of an additional imager, the output of which is connected to (n + lth input of the imager and to the first input of the time interval measuring unit, the second input of which is the control input of the device, the third input of the time interval measuring unit connected to the installation input to the zero of the device, n inputs of the prohibition block are connected

because the corresponding outputs of the memory elements of each of the channels, and (n + 1) -th input of the prohibition block is connected to the output of the delay line. The prohibition block contains n triggers (according to the number of channels of a multichannel device) and n OR elements, and the installation input to the trigger unit is the corresponding

the input of the inhibit block; the output of the trigger is connected to the corresponding inputs of the (n - 1) -th OR elements and is the corresponding output of the block; the inputs are set to zero

the triggers are combined and are the (n + 1) -th input of the inhibit block.

FIG. 1 is a block diagram of the device; in fig. 2 is a block diagram of a prohibition unit.

The device contains sensors converters 2 voltage frequency, averagers, memory elements 4-4f, elements n 5j (-biYi, indicators 6-) -6fi, multi-input

element And 7, delay line 8, mold rover 9, counter 10, distribute; 11, memory cells 12p, additional elements AND 13 ,, block 14 prohibition additional element OR 15, additional driver 16, block 17 for measuring time intervals, switch 18.

The prohibition block contains triggers 19h - I 9g, elements OR 20 - 20.

The device operates in two modes: in the mode of determining the ranks of the input voltages and in the mode of estimating the ratios between the average voltages in the channels.

When operating in the rank determination mode of the input voltages, the switch 18 is set to the position corresponding to the first mode. The signals from the output of the imager 16 is not received at the input of the counter 10.

In the first mode, the minimum value of the output voltage of any of the sensors 1 corresponds to the minimum frequency at the output of the converter 2, i.e. the maximum filling time of the average 3. With an increase in the average voltage, the filling time of the average 3 decreases accordingly.

Claims (2)

The first is the averager 3 in the channel with the maximum average (for example, in the first channel). In this case, 5 at the output of the averaging device 3, a pulse appears at the input of the memory element 4, which remembers the appearance of the pulse. Feature 4) of the memory is insensitivity to subsequent input pulses (from the output of the averager 3) until it returns to the initial state O with a signal from the output of the delay line 8. The pulse from the generator 9 is fed to the counter 10, in which After the transient processes in the counter 10, the driver 9 generates a pulse, which at the corresponding input goes to the distributor and rewrites the code of the counter 10 into the memory cell 2 (. Suppose that channel 5. When a pulse is output at the output of the average Zn, the code of the number recorded in the counter 10 changes by one and becomes two. This code is rewritten into the 12d and ti cell. The averager in the channel with the minimum average is filled last , in the i-th channel. By this time, the counter n is recorded as n-1, since the remaining averagers are filled. When a pulse arrives from the averager 3, the code of the number recorded in counter 10 becomes equal to n and is entered into the cell through the distributor 12. memory and appears on the i-th output of the mouth oystva. With the appearance of a pulse at the output of the averager 3, element 4 i also at the same time turns into a state of the multi-input element AND 7 and a signal appears at its output, which is indicated on the indicators 6-6 (the channel with the minimum average is displayed (t i.e.) and channels with average multiples of it. By this time, information about the ranks of the average voltage of each of the channels appearing at the inputs of the processing system was recorded in memory cell 12–12. In the first cell, the code corresponding to unit (i.e., rank one), which means the presence in the first canap its voltage is the maximum level compared to the average in the other channels. The p-and cell contains a code corresponding to two (the rank is equal to two), which means that there is an average voltage of the second highest voltage in the n-th channel. A code is written corresponding to n (the rank is equal to n), which means the presence in the channel of the minimum average voltage, the impulse from the output of the delay line 8 to the elements 4 .., 4 {, ..., 4p of memory, the counter 10 and the cells 12 ..., 1 2..., I 2f is recorded conditional zero, after which the procedure for determining the minimum average and rank secondary voltages is repeated in channels. The operation of the proposed device for measuring the ratio between the average voltage b channels is as follows. Switch: 18 is put in byI -. The setting corresponds to the second mode. In this case, the pulses from the outputs of the averagers 3 to the input of the counter 10 do not pass. The first is to fill the averager 3 in the channel with the maximum average (for example, in the first channel). At the same time at the output of the average. 3, an impulse arrives at the input of the memory element 4, which remembers the appearance of the impulse and does not react to subsequent impulses. By the voltage drop from the output of the element 4, the trigger 19- (Fig. 2) tilts. The voltage drop from the output of the trigger 19 is fed to the inputs of the elements 20 ..., 20g and to the second SHSh 20 input of the And 13 element.,. Through the elements OR 20i ..., 20, this differential enters the inputs of the Blocking of flip-flops 19g ..., 191 ..., 19n, as a result of which they become insensitive to input effects (from the outputs of the memory elements 4). The pulses from the output of the averager 3 (and all subsequent pulses) through the element 13 and the element 15 or 15 pass to the input of the imager 16. The generated pulse from the output of the imager 16 enters the input of the counter 10, into which the unit is written at the end of the transient processes. From the output of the imaging device 9 to the distributor receives a pulse; which rewrites the contents of the counter to memory cell 12 and enters the output of the device. The interval measurement block .17 starts to operate after the supply voltage is applied to the Start input, which arrives synchronously with the input voltage supply. Upon arrival of the pulse from the output of the imaging unit 16, in block 17, a code is recorded corresponding to the time interval from the moment the input voltages arrive until the averager is filled in the channel with the maximum average, i.e. in the first channel. With a linear dependence of the output frequency of the voltage-frequency converter on the input voltage, the approximate estimate of the average voltage in the channel with the maximum average can be the ratio - .- I ha k -: j: -, where S is the sum accumulated in the average body before it is filled; . T is the time interval from the supply of input voltages to the filling of the average; K is the coefficient of proportionality of the converter. Subsequently, as far as the averager 3 is filled. (, The pulses from its output go to the shaper 16, which produces pulses posting to the counter 10, where the sum is accumulated, is equal to the number of fillings of the averaging 3 (. Let level is average in the nth channel. When a pulse appears at the output of the average Sp, the element 4f is triggered, the voltage drop from its output goes to the corresponding input 9, which forms the code pulse of the number accumulated in the counter 10 and An equal number of overflows of the averaging device, Zn, is rewritten into the memory cell 12p and fed to the output of the device. Thus, the memory cell 12n records the L number equal (to the integer part) to the ratio of the maximum average voltage to the average voltage in the nth channel By the time the averager was filled in, the channel with the minimum average 08 (for example, in the i-th channel) in the counter 10 is written down the number M, equal to (with accuracy to the dead part) the ratio of the maximum average voltage to the minimum average. Upon receipt of a pulse with the averager 3i. the code of the AND number from the counter 10 through the distributor is rewritten into the memory cell 12 (, and goes to the device output, With the appearance of a pulse at the output of the averager 3i. element 4 also goes to state 1, the multi-input element AND 7 is triggered, and its output appears a signal on which indicators 6 are displayed. (- 6p shows a channel with a minimum average and channels with averages that are multiples of it. In cells 12 (information is written about the difference between the maximum average and the average in the other channels, i.e., unit is written in the memory cell (max. average average), the number L in the cell, and 12L number M in the cell. In the time interval measurement block 17, a code of a number proportional to the time interval filled by averager 3 in the maximum average channel was recorded. This number is inversely proportional to the maximum average level. sensors 1 and transducers 2 in different channels are identical, you can calculate the true voltage level in the channel with the maximum average and in the other channels. The device retains all the functions of the known device, and in addition, in the mode of evaluating the ratios between average voltages in channels, the device allows nonv4HTb quantitative ratios between the maximum average voltage and the average voltage in other channels. Claim 1. Multi-channel device for selecting the minimum value of the average value of aut. St. N 744610, characterized in that, in order to extend the functionality by determining the quantitative ratios between the input signals are used to enter a time interval measuring unit, an additional pulse shaper, a switch, an OR element, a prohibition block, and an additional element AND are entered into each channel, the first input of an additional element AND in each channel is connected to the output of the average. of this channel, the second input of the additional element AND is connected to the corresponding output of the prohibition block, the outputs of the additional elements AND are connected to the corresponding inputs of the element OR, the output is ko. which is connected to the input of the additional driver, the output of which is connected to (n + |) th input of the driver and to the first input of the unit of measurement time intervals, the second input of which is the control input of the device, the third input of the measurement unit of time intervals is connected to the installation input zero devices, n inputs of the prohibition unit are connected to the corresponding outputs of the memory elements of each channel, and (n +) -th input of the prohibition unit is connected with the exit of the delay line. 2. The device according to p. I, about tl and that the blocking block contains n triggers (on the number of channels of the multichannel device) and n elements OR, while the installation input into the trigger unit is the corresponding input of the prohibition block, the trigger output is connected to the corresponding inputs of the (n-1) -th the OR elements and is the corresponding output of the inhibit block, the inputs of the installation to zero of the triggers are combined and are the (n + 1) -th input of the inhibit block. Information sources, taken into account in the examination 1. USSR Copyright Certificate No. 744610, class G 06 F15 / 36, 1978. .2