SU945858A1 - Data input device - Google Patents

Description

Union of Soviet Socialist Republics DESCRIPTION OF THE INVENTION TO COPYRIGHT CERTIFICATE <4) 945858 (61) Additional to author certificate woo - (22) 3Approved 29.07.80 (21) 2966759 / 18-24 (51) M. Kl! | The Bylaws Committee with joining application no. G Rev. F 3/04 USSR (23) Priority - on inventions Published on July 23 ,.82. Bulletin No. 27 (53) UDC 681.327 and discoveries Date of publication of the description 07.25.82 (088.8)

(72) Authors

(54) INFORMATION DEVICE

The invention of fires for automation and computer technology and can. be used in systems of automatic control, collection and processing of information using digital computers (digital computers). ⁵

Known devices for entering information into a computer, used in a digital computer to convert input parameters to digital code _{| 0} and containing a voltage-time interval converter (PNVI), an input signal sensor, a communication line, a reference frequency generator, a circuit And and a counter SP. | ₅

The disadvantage of this device is its limited reliability.

The closest in technical essence to the proposed is an apparatus for inputting information you * 20 numerals machine comprising first and second flip-flops, a first counter whose output is connected to inputs coot- ^f vetstvukhtsim eLe2 cops of the first block and the outputs of which are connected to the inputs of the first sootvetstvukhtsim trigger, sensor and reference voltage source, the outputs of which are respectively connected to the first inputs of the first and second keys, the second input of the first key is connected to the non-invertible outputs of the first trigger, output The first and second keys are connected to the voltage converter input - a time interval whose output is connected to the first input of the second trigger, the input of the first counter is connected to the output of the reference frequency generator and to the first input of the first AND element, the second input of which is connected to the output of the second trigger and to the second input of the second key, and the output to the input of the second pulse counter C2].

A disadvantage of the device is reduced reliability due to a lack;

self-control.

The purpose of the invention is to increase the reliability of the device.

This goal is achieved by the fact that in the device containing the first and second triggers and the first counter, the output of which is connected to the corresponding inputs of the first block of elements 5 And, the outputs of which are connected to the inputs of the first trigger, the sensor and the source of the reference voltage, the outputs of which respectively connected to the first inputs of the first and second keys, the second input of the first key is connected to the non-invertible output of the first trigger, the outputs of the first and second keys are connected to the input of the voltage-time converter, the output of which is connected to the first input of the second trigger, the input of the first counter is connected to the output of the reference frequency generator and to the first input of the first element And, the second input of which is connected to the output of the second trigger and to the second input of the second key, and the output to the input of the second counter third key, third, fourth, fifth and sixth triggers, 25 first, second and third decoders, first, second and third elements OR, second, third and fourth elements AND, second block of elements AND, inputs of which and inputs of the fourth element AND respectively They are connected to the outputs of the first pulse counter, the output of the fourth element AND is connected to the first inputs of the second and third elements AND, the outputs of the second block of elements AND are connected to the corresponding inputs of the third trigger, the non-invertible output of which is connected to the third input of the first key and the first input of the third key, inverted ₄₀ output - with the first input of the first OR element, the second input of which is connected to the invertible output of the first trigger, and the output - to the second input of the second trigger, the output of the _4J source is standard second power connected to the second input of the third switch, whose output is connected to the output of the second switch and to the input of inverter nalpryazhenie - time interval, the outputs of the second counter ⁵⁰ are connected to soot- sponding information output apparatus and the corresponding inputs of the first, second and third decoders, the outputs of which are connected to first inputs of the fourth, five- ⁵⁵ and sixth flip-flops, the second inputs of which are connected to neinvertiruemym outputs of the first, third and pya945858 4 of the flip-flops, respectively, the first input the second OR element is connected to the output of the fourth trigger, the second input is to the third input of the first AND element and to the second output of the voltage converter - time interval: the first and second inputs of the third OR element are connected respectively to the outputs of the fifth and six triggers, outputs of the second and third OR elements, respectively, are connected to the second inputs of the second and third AND elements, the outputs of which are the corresponding control outputs of the device.

The drawing shows a functional diagram of the device. The device contains a sensor 1, first 2, second 3. and third 4 keys, a source 5 of a standard voltage, a voltage converter - a time interval 6, a generator 7 of a standard frequency, a control unit 8, a first counter 9, a first block of 10 And elements, the first 11 and second 12 triggers, second block 13 of AND elements, first 14, second 15, third 16 and fourth 17 elements AND, first 18, second 19 and third 20 elements OR, second counter (pulses) 21, third 22, fourth 23, fifth 24 and sixth 25 triggers, first 26 _f second 27 and third 28 decryptors.

The device operation cycle consists of (-tacts. In each ΐ-th cycle, trigger 22 controlled by unit 13. gives out a pulse that locks the key 2 and supplies the PNVI 6 instead of the measured signal with a previously known signal passed by the key 4. At the end of this pulse, the signal from trigger 22, through trigger OR 18, it activates trigger 12, which generates a pulse of the clock and the integration of the reference voltage.In the remaining t ~ 1 clock cycles, the measured signal is passed through key <2, and key 4 is locked in these clock cycles.

At the beginning of each clock cycle, triggers 23 and 24 are put into the initial state by signals from triggers 11 and 22 (logical 1 ^П ).

If there is a failure (short circuit) in the communication line or sensor or ₍ measured signal, such that its code on the counter 21 is less than the minimum allowed, then the decoder 26 will not work, and the state of the trigger 23 remains the same (logical 1), which will cause an arrival the gate pulse from the element 17 the open state of the element And 15 and the control signal appears at the output of the device.

During normal operation of the device 5, the decoder 26 is triggered, the trigger 23. is reset to zero and by the time the gate pulse arrives, the element And 15 will be closed.

If there was a failure (breakage) of the line Yu communication or sensor or measuring signal such that the duration of the time interval output PNVI 6 exceeds maximum, then on arrival _(strobe pulse on member 15 signal output PNVI 6 through an OR gate 19 and AND gate 15 will go to the output of the device.

To check the accuracy of the operation of converter 6, instead of the measured signal from sensor 1, a reference signal from key 4 is fed into the S-th operation cycle of the device; in this case, if the converter signal exceeds> '' the permissible value is in error s-25 If at the output of the OR element 20, logical 1 "appears, which, upon the arrival of a gating pulse from the element 17, will cause an open state of the And 16 element, and a control signal will appear at the output of the device.

During normal operation of the converter, the logical O at the output of the OR element 20 will prohibit the passage of the control signal from the output of the And 16 element.

The control signals with a duration equal to the duration of the strobe pulse are used later in the digital computer to correct the operation algorithm or * are output to the recording 'device.

Thus, the proposed device allows you to check the operation of the Converter and the accuracy of the conversion, the serviceability of communication lines and sensors, finding the measured signal in the range of the Converter.

Claims (2)

The invention relates to automation and computing and can be used in systems of automatic control, collection and processing of information with a twitch of digital computers (CVSM). There are known devices for inputting information into a computing machine that are used in a digital computer for converting input parameters into a digital clock and containing a voltage-time interval converter (PNVI), input signal sensors, a communication line, a reference frequency generator, an And circuit and a counter 1 The disadvantage of the device is limited reliability. The closest in technical essence to the Proposed is a device for entering information into the computer, containing the first and second triggers, the first counter, the output of which is connected to the corresponding inputs of the first block of elements AND, the outputs of which are connected to the corresponding inputs of the first trigger , the sensor and the source of the reference voltage, the outputs of which are respectively connected to the first inputs of the first and second keys, the second input of the first key is connected to the non-inverted outputs of the first trigger, output The first and second switches are connected to the converter input - the time interval, the output of which is connected to the first input of the second switch, the input of the first counter is connected to the output of the reference frequency generator and to the first input of the first element And, the second input of which is connected to the output of the second trigger and to the second input of the second key, and the output to the input of the second pulse counter 23. The disadvantage of the device is reduced reliability due to lack of self-control. The purpose of the invention is to increase the reliability of the device. This goal is achieved by the device containing the first and second triggers and the first counter, the output of which is connected to the corresponding inputs of the first block of elements And whose outputs are connected to the inputs of the first trigger, the sensor and the source of the reference voltage, the outputs of which are respectively connected to the first inputs the first and second keys, the second input of the first key, cha is connected to the non-inverting output of the first trigger, the outputs of the first and second keys are connected to the input of the voltage converter - time, Ser l, the output of which is connected to the first input of the second trigger, the input of the first counter is connected to the output of the reference frequency generator and to the first input of the first element I, the second input of which is connected to the output of the second trigger and to the second input of the second key, and the output to the input of the second counter , the third key, third / fourth, fifth and sixth triggers are entered, the first, second and third decoders, the first, second and third elements OR, the second, third and fourth elements AND the second block of AND elements, whose inputs and inputs are the fourth element AND respectively connected to the outputs of the first pulse counter, the output of the fourth element And connected to the first inputs of the second and third elements And the outputs of the second block of elements H connected to the corresponding inputs of the third trigger, non-inverted output of which is connected to the third input of the first key and the first input of the third key, Inverted output - with the first input of the first OR element, the second input of which is connected to the inverted output of the first trigger, and the output to the second input of the second trigger, output of the source reference This voltage is connected to the second input of the third key, the output of which is connected to the output of the second key and to the input of the converter for voltage time interval, the outputs of the second counter are connected to the corresponding information outputs of the device and to the corresponding inputs of the first, second and third terminals, outputs which are connected to the first inputs of the fourth, fifth, and sixth triggers, the second inputs of which are connected to the non-inverted outputs of the first, third, and n TOGO triggers, respectively, the first input the second element OR is connected to the output of the fourth trigger, the second input is connected to the third input of the first element AND and to the second output of the voltage converter - time--: Noah, the first and second inputs of the third OR element are connected respectively to the outputs of the fifth and sixth triggers, the outputs of the second and third elements OR are respectively connected to the second inputs of the second and third elements AND, the outputs of which are the corresponding control outputs of the device. The drawing shows the functional diagram of the device. The device contains the sensor 1, the first 2, the second 3. and the third t keys, the source 5 of the reference voltage, the voltage converter is the time interval 6, the geyatortor 7 of the reference frequency, the control unit I, the first counter 9, the first block to elements I, the first 11 and second 12 triggers, second block 13 elements AND, first 1, second 15, third 1b and fourth 17 elements AND, first 18, second 19 and third 7.0 elements OR, second counter (pulses) 21, third 22, fourth 23, the fifth 2k and sixth 25 triggers, the first 2b second 27 and the third 28 decoders. The cycle of operation of the device consists of {-contacts. In each I-M cycle, trigger 22, controlled by block 13, generates a pulse that locks key 2 and sends to PNVI 6 instead of the measured signal a previously known signal passed by the key. At the end of this pulse, the signal from trigger 22 through the element OR 18 turns on trigger 12, which produces a clock pulse and integration of the reference voltage. In the remaining cycles of operation, the measured signal passed through is integrated, and the key 4 is locked in these cycles. At the beginning of each cycle of operation, the triggers 23 and 24 are triggered from the triggers 11 and 22 to the initial state (logical 1). If a fault (short circuit) of the communication line or sensor or measured signal occurred, such that its code on the counter 21 is less than the minimum allowed, then the decoder 26 will not work, and the state of the trigger 23 remains the same (logical 1, which will cause the arrival of the gate, the pulse from the element 17, the open state of the element AND 15 and the output of the device is a control signal.When normal operation of the device, the decoder 26 is running, the trigger 2 is zero and the element And 15 will turn out to be closed by the time of the strobe pulse’s arrival. If a link or sensor failure or interruption occurred, or the measured signal is such that the duration of the time interval at the output of the PNVI 6 is greater than the maximum allowed, then when the strobe pulse arrives at element 15, the signal from the output of PNVI 6 through element OR 19 and element 15 will go to the output of the device. To verify the accuracy of the converter 6 to its input instead of the measured signal from sensor 1 in the i-th, the device’s reference signal is sent from the key U, and in the case of a signal from the converter beyond the allowable value and error on the output member 20 through OR gate vitsD 1 which on arrival of gating pulses from the element 17 i will cause the open state of the AND 16, and the output device of Vits pilot signal. During normal operation, the logic O on the output of the element OR 20 will prohibit the passage of the control signal from the output of the element 16. The control signals with a duration equal to the duration of the gating pulse are later used in the digital computer to correct the operation algorithm or turn on to the recording device. Thus, the proposed device makes it possible to check the operation of the converter and the accuracy of the conversion, the health of the communication lines and sensors, the finding of the measured signal in the range of the converter. Claims An information input device comprising first and second triggers, a first counter, the output of which is connected to the corresponding inputs of the first block of elements And whose outputs are connected to the corresponding inputs of the first trigger, a sensor and a source of reference voltage, the outputs of which are respectively connected to the first the inputs of the first and second keys, the second input of the first switch is connected to the non-inverting one, the output of the first trigger, the outputs of the first and second switches are connected to the input of the voltage converter - the belt interval, the output of which is connected to the first input of the second trigger, the input of the first counter is connected to the output of the reference frequency generator and to the first input of the first element I, whose input is connected to the output of the second trigger and to the second input of the second key, and the output to the second input In order to increase the reliability of the device, a third key, third, fourth, fifth and sixth triggers, first, second and third decoders, first, second and third elements OR, second, third and h the fourth And elements, the second block of And elements, whose inputs and inputs of the fourth And element are connected to the corresponding outputs of the first counter, the output of the fourth block of And elements connected to the first inputs of the second and third elements And, the outputs of the second block of And elements connected to the corresponding inputs of the third trigger whose non-fi vertically output is connected to the third input of the first key and the first output of the third key, the invertible output to the first input of the first OR element, the second input of which is connected to the inverter the output of the reference voltage source is connected to the second input of the third key, the output of which is connected to the output of the second key and to the input of the voltage converter —the time interval; the outputs of the second counter are connected to the corresponding information outputs devices and with the corresponding inputs of the first, second and third decoders, the outputs of which are connected to the first inputs of the fourth, fifth and sixth triggers, the second inputs of which are connected to Inverting the outputs of the first, third and fifth triggers, respectively, the first input of the second element OR is connected to the output of the fourth. Trigger, the second input to the third input of the first element And 79, and the second output of the voltage converter - the time interval, the first and second inputs of the third element OR are connected respectively to the outputs of the fifth and sixth triggers. the outputs of the second and third elements OR. respectively, are connected to the second inputs of the second and third elements AND, the outputs of which | x are the outputs of the device. . 88 Sources of information taken into account in the examination 1. Maslov B.C. and others. Code-imputed telemetering systems ;. N., 1969, p. 70-71. 2. Tychino K.K. Voltage to frequency converter. M., 1972, p. 16 (prototype). T t