SU1282105A1 - Information input device - Google Patents

Abstract

The device for entering information relates to multichannel data acquisition systems and can be used for physical and biomedical research. The goal of the invention is not to increase the speed of the device. The goal is provided by introducing into the device the first and second adders, the second decoder, the switch, the trigger, the second counter, the second generator. The device provides such a switching mode for the drive outputs, which compensates for the cyclic switching of sensor groups to the meter inputs, carried out in the information accumulation process, which ensures an unambiguous position of the results for each sensor group in the telemetry frame. At the same time, there is no need to remember information about the connection of channel switches. 2 Il. (L

Description

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The invention relates to automation and computing and can be used to organize physical and biomedical research.

The aim of the invention is to improve the speed of the device.

On Fig.1 presents a block diagram of the device; in fig. 2 - timing charts of the device.

The device for entering information contains the first 1 and second 2 groups of switches, a group of counters 3, drives 4, the first generator 5,

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The sequence of connecting the outputs of the accumulators 4 to the output of the device through the switch 12 and the sequence of feeding the shift pulses to the inputs of the accumulators depends on the order of appearance of the control signals C – C from the output of the decoder 11.

In turn, the control signals at the input of the decoder 11 are generated by the first adder 10, the code from the two most significant bits of the counter 9 arrives at the lower bits of the addends, and the code from the output of the second adder 13 enters the higher bits,

the first counter 6, the first decoder providing the necessary shift to the second generator 8, the second counter 9, the information output order depending on the first adder 10, the second deciphering on the state of the counter 6 (in other words, on the current cyclic switching state of the sensor groups meter inputs 3).

The torus 11, the switch 12, the second adder 13 and the trigger 14.

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The device provides such a switching mode for the outputs of drives 4 when reading information, which compensates for the cyclic switching of sensor groups to the inputs of counters 3, carried out in the process of information accumulation, ensuring an unambiguous position of the results for each group of sensors connected via switches 1 and 2, in telemetry frame. At the same time, there is no need to remember information about the state of the switches of the input channels.

The device operates as follows.

During each cycle, Accumulation - reading after the Census and Reset signals simultaneously register the number of pulses in each measuring channel from one of the sensors connected to the device input through switches 1 and 2 and serial output to the communication channel information from drives 4, obtained in the previous cycle.

In this case, the order of connecting sensors and sensor groups to the counter inputs 3 1 through switches 1 and switches 2 is provided with signals aa

symo-from the state of counter 6 (in other words, from the current state of cyclic switching of sensor groups to the inputs of counters 3).

The need for a second adder is caused by the fact that after changing the signal bj to b. order of information output from drives 4, obtained in the previous a switching cycle sensors

for a b.th circuit switching cycle, must be maintained for a cycle time a,

sensor switching.

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The frequency of the second generator 8 and the number of bits of the counter 9 are selected based on the accepted duration of a single exposure cycle a

35

(as a rule, and, and

, 3 :.

a) and the number of bits I of the accumulators 4. After the contents of all (in this case, four) accumulators are indicated by the overflow signal from the last discharge of the counter 9, the trigger 14 is set to the state that blocks the counter 9 until the next pulse is reset. After which the next cycle starts both accumulation accounts and the withdrawal of previously accumulated information (Fig. 2).

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Thus, the proposed device allows restoring the natural order of the measured outputs of the first generation information when it is subsequently transmitted to the consumer, which allows using it immediately, since the position of the measurement result from the sensors of each group 55 in the telemetry frame is a priori

but , . . . , ".. - aoLfi.ja u 1C

torus 5 and b,, ..., b - from the outputs of the decoder 7. The time relationships between the order of connecting the sensor groups D, ..., D to the inputs of counters 3 during cyclic switching when one of the control signals appears

the known number of the control signal can be transmitted as service information.

one

, B are presented in FIG. 2

The sequence of connecting the outputs of the accumulators 4 to the output of the device through the switch 12 and the sequence of feeding the shift pulses to the inputs of the accumulators depends on the order of appearance of the control signals C – C from the output of the decoder 11.

In turn, the control signals at the input of the decoder 11 are generated by the first adder 10, the code from the two most significant bits of the counter 9 arrives at the lower bits of the addends, and the code from the output of the second adder 13 enters the higher bits,

providing the necessary shift in the order of output of information depending

 providing the necessary shift in the order of output of information depending

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25

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symo-from the state of counter 6 (in other words, from the current state of cyclic switching of sensor groups to the inputs of counters 3).

The need for a second adder is caused by the fact that after changing the signal bj to b. order of information output from drives 4, obtained in the previous a switching cycle sensors

for a b.th circuit switching cycle, must be maintained for a cycle time a,

sensor switching.

(

The frequency of the second generator 8 and the number of bits of the counter 9 are selected based on the accepted duration of a single exposure cycle a

35

(as a rule, and, and

, 3 :.

a) and the number of bits I of the accumulators 4. After the contents of all (in this case, four) accumulators are indicated by the overflow signal from the last discharge of the counter 9, the trigger 14 is set to the state that blocks the counter 9 until the next pulse is reset. After which the next cycle starts both accumulation accounts and the withdrawal of previously accumulated information (Fig. 2).

the known number of the control signal can be transmitted as service information.

Claims (1)

Invention Formula A device for entering information containing the first and second groups of 1 switchboard, a group of meters, accumulators, the first pulse generator, the first counter, the first decoder, whose exit is connected to the inputs of the second group of switches of the second group, the inputs of the second group of which are connected respectively to the outputs of the switches of the first the groups whose inputs of the first group are the inputs of the device group, the inputs of the second devices, the first second adders are entered into it, the second decrypted switch, the trigger, the second counter the second generator, the output of which is connected to the first input of the second counter, the second input of which is connected to the output of the trigger, the first input generator, the second input of which is connected to the last output of the second counter, the outputs of which are connected to the inputs of the second group of the first adder, the outputs of which are respectively connected to the inputs of the second fO  f groups of switches of the first group of the first decoder, the outputs of which .1C: 4 devices, the first and second adders, the second decoder, the switch, the trigger, the second counter, the second generator, the output of which is connected to the first input of the second counter, the second input of which is connected to the trigger output, the first input of which is connected to the first output of the first generator The second input of which is connected to the last output of the second counter, the outputs of which are connected to the inputs of the second group of the first adder, the outputs of which are respectively connected to the inputs of VTO f united respectively with the outputs of the group of the first generator, the last output of the group of which is connected to the input of the first counter, the outputs of which are connected to the inputs of the decoder, the first output of the first pulse generator is connected to the second inputs of the counters of the group, the first inputs of which are connected respectively to the outputs of the switches of the second group, the second output the first generator is connected to the first inputs of the accumulators, the inputs of which are connected to the outputs of the corresponding counters of the group, characterized in that for the purpose of higher no speed connected to the inputs of a group of accumulators and inputs of the second group of the switch, the output of which is the output of the device, inputs of the first group of the switch are connected respectively to the outputs of the accumulators, the second inputs of which are connected to the first output of the second counter, inputs of the first group of the first adder are connected respectively to the outputs of the second adder, the inputs of the first group of which are connected to the first output of the group of the first generator, the outputs of the first counter are connected respectively to the inputs of the second group of the second adder . / fxwoKtf fl / ptflOntf / ffal , {fa & Mgf Ti-K U IIIJIIII4I Jl HM.iu-j, j -f i Cm / KiSct 1 CmpofCl I I CmfvSCl I dttOHOJt connection l-i- l l f / f f a / ifit nightingale a ,, eie ik to 0 Jn (l -T-l. . iTT t t n