SU1357991A1 - Device for signalling deviation of parameters in limit check - Google Patents

Description

ten

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The invention relates to electronic devices and can be applied in centralized control systems for mass production of products, as well as in various multi-channel measuring devices.

The aim of the invention is to simplify and increase the reliability of the device.

The drawing shows the structures on the device diagram.

The parameter deviation alarm device for tolerance control contains sensors 1, switch 2 shaper 3 signals Deviation up, shaper 4 signals Deviation down, generators 5 and b pulses, elements OR - NOT 7.8 and 9, generator 10 pulses, buffer stage 11, elements 12 indications, the decoder 13 and the counter 14. pulses, forming the distributor 15 commands, the decoder 16 and the counter 17 pulses, 25 forming the distributor 18 commands,

The device works as follows.

The pulses from the generator 10 pulses arrive at the counters 14 and 17, the valves 15 and 18 teams.

The binary code from counters 14 and 17 is fed to the inputs of the decoders 13 and 16, respectively. At the outputs of the decoders 16 and 13 of the command distributors 18 and 15, control commands (signals) of the switch 2 and the display elements 12 are sequentially formed. Simultaneous signaling at identical outputs of decoder 16 and 13 is accomplished by synchronizing from decoder 13 to counter 17. Sensors 1 and indication elements 12 alternately synchronously connect, respectively, switch 2 to inputs of drivers 3 and 4 of signals and buffer cascade 11.

The signal from one of the sensors 1 through the switch 2 is supplied to the formers 3 and 4 signals. In the presence of a signal less than the lower tolerance level, the signal at the output of the driver 4 signals The deviation downwards corresponds to the level of logical zero, and

thirty

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the signal at the output of the imager 3 sig gg tits and is modulated by a different frequency.

0

five

five

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five

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nal Deviation up - the level of logical units. Generators 5 and

6 pulses are constantly in the self-oscillation mode, with the first pulse generator 5 having the oscillation frequency F / 3 Hz, and the second F 1 Hz.

Therefore, in the presence of a signal less than the lower tolerance level at the outputs of the elements OR - NOT 8 and 9, there is an antiphase signal with a frequency of a 6-pulse generator. This signal is fed to the input of the buffer stage 11 and from it to the display element 12, which is illuminated and modulated with a frequency of 6 pulses. If there is a signal located in the tolerance control zone of the formers 3 and 4 signals, the outputs of the formers 3 and 4 contain the level of the logical unit, the outputs of the OR elements are NOT 7 and 8 the level of logical zero, and the output of the OR elements is NOT 9 logical unit.

Thus, at the input: of the buffer stage 11, there is a constant level of the logical unit, and the corresponding indication element 12 is evenly lit. In the case of a signal located above the tolerance control zone, at the output of the signal conditioner 4, the deviation downwards sets a signal with the level of a logical unit, and at the output of the signal 3 gate the deviation upwards sets the signal with a logic zero level.

At the output of the OR element - NOT 8, the logical zero level is set, and at the output of the OR element - NOT

7 and 9 - anti-phase signal with a generator frequency of 5 pulses.

Consequently, at the input of the buffer stage 11 there is a signal with a generator frequency of 5 pulses and, accordingly, the display element 1.2 lights and is modulated by this frequency. Thus, when the source parameter is in the tolerance zone, it shines continuously, and outside the tolerance zone, if lower, it shines and is modulated by one frequency, and the highest -

Editor N.Langazo

Compiled by N.Smirnov Tehred and.Veres

Order 6001/51 Circulation 544 Subscription

VNIIPI USSR State Committee for Inventions and Discoveries 4/5, Moscow, Zh-35, Raushsk nab. 113035

Production and printing company, Uzhgorod, Projecto st., 4

Proofreader V. But ha

Claims (1)

DEVICE FOR SIGNALING PARAMETER DEVIATIONS DURING PERMISSION CONTROL, containing sensors whose outputs are connected to the corresponding information inputs of the switch, display elements, the first conclusions of which are combined, signal shaper Deviation up, signal shaper Deviation down, characterized in that, in order to simplify and increase reliability devices, three pulse generators are introduced into it, three OR-NOT elements, two pulse counters, two decoders, the output of the switch is connected to the inputs of the driver Signal Deviation up and signal conditioner Deviation down, the outputs of which are connected to the first inputs of the first and second elements, respectively, OR NOT, the outputs of which are connected respectively to the first and second inputs of the third element OR, NOT, the output of which is connected to the first output of one of the display elements, the output of the first pulse generator is connected to the counting inputs of the first and second pulse counters, the outputs of the first of which are connected to the inputs of the first decoder, the outputs of which are connected to the address input switch, the outputs of the second pulse counter are connected to the inputs of the second decoder, the first output of which is connected to the synchronization input of the first pulse counter, and the remaining outputs are connected to the second outputs of the corresponding display elements, the output of the second pulse generator is connected to the second input of the first element OR - NOT, the output of the third pulse generator is connected to the second input of the second element OR - NOT. SU „„ 1357991