SU1451744A1 - Information readout device - Google Patents

Abstract

The invention relates to the field of automation and computer technology and can be used to automatically process various pictures and graphs, automatically measuring the dimensions of parts. The purpose of the invention is to improve the accuracy of the device. The goal is achieved by eliminating the influence on the measurements of the illumination, background and spatial frequency of the image under study, which is ensured by the introduction of a register, the first and second pulse shapers, and the second clock generator. 1 hp f-ly, 5 ill.

Description

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The invention relates to automation and computing and can be used to automatically process various pictures and graphs, automatically measuring the dimensions of parts.

The purpose of the invention is to expand the device.

FIG. 1 is a block diagram of the device; in fig. 2 is an example of a constructive implementation of a measuring mark former; FIG. 3 is a diagram of the first pulse generator; in fig. 4 is a diagram of the second pulse generator; in fig. 5 - pulse timing diagrams.

The device contains an image signal sensor 1, made in the form of a CCD, a sweep generator 2, the first 3, second 4 and third 5 amplifiers, analog-to-digital converter 6 (ADC), first adder 7, driver 8 signals, driver 9 measuring marks, first sync generator 10, indicator 11, delay element 12, second adder 13, registration unit 14, register 15, first pulse shaper 16, second synchronizer (clock) 17, second pulse shaper 18.

Shaper measuring labels (Fig. 2) contains counters 19-21,. Selector 22, trigger 23, element And 24

The first pulse shaper. (Fig. 3) contains an NOT element 25, a first delay element 26, a first And element 27, a second delay element 28, a second element 29 And a third delay element 30.

The second pulse shaper (Fig. 4) contains the element 31, the first delay element 32, the element 33 and the second element 34 of the delay. The device works as follows.

in a way.

The clock generator 10 generates frame damping pulses (Fig. 5a), a receiver synchronization signal, a damping receiver signal, installation pulses (Fig. 56), and special control pulse sequences of the output register fed to the input of the sweep generator 2.

Generator 2 generates pulse sequences designed to control the operation of the sensor that come from the first output.

generator 2 to the input of sensor 1. From the second output of generator 2, the signal synchronous and in phase with the signal of the second phase of the output register of sensor 1 is fed to the second inputs of the driver 9 and the driver 8. The signal (Fig. 5c) from the output of the driver 9 is fed to the input of the chroniser 17, to the second inputs of the analog-digital converter 6 and register 15.

The clock 17 generates a sequence of clock pulses that provide synchronization Cy1-1mator 7, the element 12 of the delay and the adder 13.

The video signal (Fig. 5d), formed by sensor 1, through amplifier 3 is fed to the inputs of amplifiers -4 and 5. In amplifier 4, the measuring tags, damping and synchronizing signals of the receiver are mixed into the video signal. The amplified video signal with service impulses mixed in it goes to the indicator 11.

In amplifier 5, the output signal level is matched with the level required for operation of the analog-digital converter 6. The digital code of the video signal (FIG. 5 g) allocated using the measuring tag (FIG. 5) is fed to the first inputs of the adder 7 and the register 15 In this case, over a period of time T, (Fig. 5, analog-to-digital conversion and recording of the defocused image video signal code into the register 15 takes place, and during the video signal period of the unfocused image. The code is recorded into the register 15 according to the signal from you of the driver 9 (Fig. 5) entering the second input of the register 15. The vertical vertical defocusing is produced by feeding the first output of the generator 2 to all three phases of the accumulation section of the sensor 1 during the time period T of the accumulation voltage (Fig. 5 ,, e, g), formed under the influence of the signal (Fig. 5 b), coming from the second output of the imaging unit 16 pulses to the second input of the generator 2 sweep.

The electron horizontal defocusing is produced as a result of applying to the phases of the output register of the sensor 1 during a period of time T a signal generated from the pulses coming from the second output of the form3145

Rotate 16 to the third input of the generator 2.

At the first time moment of period T, the video signal of the defocused image point enters the second input of the adder 7 from the output of the register 15. The reading of the video signal samples from the output of the register 15 is performed according to the signal (Fig. 58) received at the second input of the register 15. At the same time, the digital code of the video signal of the unfocused image point is fed to the first input of the adder 7. Adder 7 subtracts the incoming codes. The differential code at the output of the adder 7 is changed by the signal. The signal arriving at the fourth input of the adder 7 from the fifth output of the clock generator 10 (Fig. 5k) controls the output code from the output of the analog-digital converter 6. During the time period T ,, when the video signal of the out-of-focus image is recorded from sensor 1 , the code at the output of the ADC 6 is inverse, and during the time period T, when the video signal of the unfocused image is removed from the output of sensor 1, the code at the output of the ADC 6 is direct. Thus, at the output of the adder 7, a code of the difference between the unfocused and defocused images is formed. From the first output of the adder 7, the difference code is fed to the second input of the adder 13 and to the first input of the delay element 12 which delays the incoming video signal code for a time period Tj of the clock signal. Similarly to that described at the next time point, at the first output of the adder 7, the difference in the video signal codes of the point of the defocused and non-defocused images is formed.

The adder 13 produces the summation of the previous and subsequent values of the difference codes of the video signal. The summary code is read from the output of the adder by 13 pulses arriving at the third input of the adder 13 from the first output of the chroniser 17.

When the sign of the difference between the defocused and unfocused image codes changes, a signal arriving at the input of the second pulse generator 18 appears at the second output of adder 7, the signal

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from the output of which records in block 14 of the code of the element number of the sensor 1 of the image coming from the output of the imager 8 signals,

the difference code from the first output of the adder 7, the code of the sum coming from the output of the adder 13.

invention formula

Claims (2)

1. A device for reading information containing an image signal sensor, the control input of which is connected to the first output of the sweep generator, and the output connected to the information input of the first amplifier, the second amplifier whose information input is connected to the 0 output of the first amplifier, the first synchronizing the input is connected to the first output of the first synchronization generator, the second synchronization input is connected to the second output of the first 25 synchronization generator, and the ipsod is connected to the indicator input, the third amplifier, onny input coupled to an output of the first amplifier and an output connected to the information input 30 of analog-digital transformation,. the driver, the signal driver, whose synchronizing input is connected to the first output of the first synchronizing generator, and the control input is connected to the second output of the sweep generator, the measuring label driver, the first synchronizing input of which is connected to the first output of the first synchronizing generator, the second synchronizing input is connected to the second output of the sweep generator, and the output is connected to the control input of the second amplifier and to the first synchronization input of the analog-digital converter, the first one a mat, one information input of which is connected to the output of an analog-digital converter, a delay element whose output is connected to one information input of the second adder, and a registration unit, while the third output of the first clock generator is connected to the information input of the sweep generator, characterized in that in order to improve the accuracy of the device, a register is entered in it, the information input of which is connected to the output of the analog-digital driver, and the output is connected to another information input of the first adder, the first pulse shaper, .sinhroniziruyuschie inputs connected to the fourth and fifth outputs of the first sinhrogene- Rathore, and outputs connected to inputs of controlled nntsim l sweep generator vto1451744 the registration unit, while the second synchronization inputs of the analog-digital converter and the first adder are connected to the fifth output of the first synchronizing generator. 2. A device according to claim 1, characterized in that the first pulse shaper comprises an ELECTORAL INPUT 1 SPSr IVJl-Cl, -. ll-, -, - xg a synchronous generator, a synchronizing NE option, the input of which is the first input of which is connected to the output of the measuring label former, and the outputs are connected to the corresponding synchronization inputs by the first input of the former, and the output is connected to the input of the first delay element , the second and second elements is another input of which is connected to the delay, the information input of which is connected to the first output of the first adder connected to another information input of the second adder and one information input of the registration unit, the other information inputs of which are connected to the output adder, and second the second delay element, and the output of the first element And are the first output of the driver, the second element And, the first and second inputs of which are the first and second inputs of the driver, the third input is connected to the output of the third delay element, and the output is the second shaper output, with input nciJlvO and о i t wl, J V. J I U. 7 - g - A pulse shaper controlling 25 the second delay element is  ..., - ll J-i t-YnmTN "aglope d I PMKL the input of which is connected to the second output of the first adder, and the output is connected to the sync input the first input of the driver and the input of the third delay element is the second input of the driver. a cop NOT whose input is a by the input of the imager, and the output is connected to the input of the first delay element, the output of which is connected to one input of the first element And, another input is connected to the output of the second delay element, and the output of the first element I is the first output of the former, the second element AND, the first and second inputs of which are the first and second inputs of the former, the third input is connected to the output of the third delay element, and the output is the second output of the former, while the input    - The second delay element is ..., - ll J-i t-YnmTN "aglope d I PMKL the first input of the driver and the input of the third delay element is the second input of the driver. sriel and a 5 3 y d t 3 and