SU490271A1 - TV set for parts control - Google Patents

Description

one

The invention relates to the field of applied television.

A television device for controlling parts is known, which contains a television camera, the output of which is connected to the first input of a video monitor, an analyzer unit connected by an output to a storage device through a control device, the second input of which receives a signal from an electronic computer, and the output of the storage device connected to a scaling unit, a frequency multiplier, a frame counter, a meter of measuring zones along the Y coordinate, with one of the inputs of a television camera , with the second input of the video monitoring device and with the first input of the signal generator, the second input of which is simultaneously connected to the output of the measurement counter by the Y coordinate and one of the inputs of the electronic computer, the first AND circuit with three inputs, one of which is connected to the frequency multiplier and an output connected at the same time to the second inputs of the symbol generator and the electronic computer via a K001dinat X measurement counter, the symbol generator output being connected to one of the inputs of the color block The second input logic to the third input of the video control device, the second AND logic circuit with two 1 inputs and an output connected by a Y counter by measuring the Y, nip coordinate, is connected to the second input of the transmitting camera.

A disadvantage of the known device is insufficient control accuracy.

The aim of the invention is to improve the measurement accuracy.

This goal is achieved due to the fact that the output of the storage device is connected simultaneously with the second input of the chrominance unit, the third input of the first logical

The AND circuit and one of the inputs of the measurement logic, the second input of which is connected to the output of the transmitting chamber, and the output simultaneously to the third input of the first AND logic and the first input of the second

the logic circuit "And, whereby the output of the frame counter is connected to the second input of the second logic circuit" And through the comparison circuit, the second input of which is connected to the output of the counter of measurement zones in the Y coordinate.

TV unit block diagram

control details shown in the drawing.

The device contains an analyzer unit 1,

control device 2, memory device (memory) 3, first logic circuit 4

measuring unit 5, color-coded, video-streamlining device 6, second logic circuit 7 measuring, transmitting television camera 8, block 9 scaling, first logic circuit “And 10, second logic circuit“ And 11, counter 12 measurements on the X coordinate, the measurement counter 13 and the Y coordinate, the comparison circuit 14, the 15 frame counter, the measurement zone counter 16 along the Y coordinate, the frequency multiplier 17, the 18 character generator.

The control signal is supplied to the analyzer to select the necessary video signals in the memory based on the analysis of the control programs and signals from the machine sensors, for which the analyzer 1 through the control device 2 is connected to a storage device (memory) 3. Recording information The memory 3 is produced from the computer through the control device 2, and the reading of the video signals of the image P1 is performed through the first measurement logic 4, the output of which is connected to the video control device 6 through the color block 5 and directly to the input of the second logic circuit 7 measurement. The image of the controlled object through the transmitting television camera 8 is also transmitted to the inputs of the video monitoring device b and the second measurement logic 7, and the transmission scale (the displayed image is specified by the scaling unit 9 connected by the input to the storage device 3, and the output from the frame scanning frame of the broadcast television camera 8. The output of the second measurement logic 7 is connected to the inputs of the logic circuits "And 10 and 11, the outputs of which are connected to the counters 12 and 13 of the measurement along the X and Y coordinates, which is the other input of the second logic circuit 11 receives a signal of the comparison circuit 14, the inputs of which are connected to the outputs of the 15 frame counter and the counter 16 of the measurement zones along the Y coordinate, the inputs of which are connected to the storage device 3, and the other two inputs of the first AND 10 logic circuit are connected to the output the measuring logic block with the output of the frequency multiplier 17, the clock frequency of memory 3 is input to the .KOTopOiDO input. The outputs of the counters 12 and 13 are connected to the input of the 18-character generator, the output of which is connected to the chromaticity unit 5, as well as to the computer. For synchronous operation of the transmitting television camera 8, the storage device 3 and the video monitor 6, synchronization pulses from the output of the storage device 3 are sent to the sweepers of the transmitting television camera 8 and the video monitor device 6. To represent the symbol information that is transmitted from the image memory, the output of memory 3 is connected to the input of the generator 18 characters.

In the initial state, the monitored object is rigidly positioned in front of the object of the transmitting television camera.

Description of the device

At the end of the processing. Any part on any machine that is in the line of machines with numerical nporpiaMMHbiM control, from the computing control device

By this machine, on the analyzer block 1, the machine number codes, the numbers of the machined part and the number of the processing program are transmitted, which are stored in the analog registers in the registers and in the form of address commands

through the control device 2, the required memory array is selected in the storage device 3, the information being written to the memory device from the computer through the control device 2. Readable video codes

images of measuring templates are transferred to the first logic circuit 4, which determines the duration of the video signal of the image along the television sweep line by its discrete value, and from the output

This scheme is transferred to the second measurement logic 7. And through the chromaticity block 5, designed to be able to distinguish the juxtaposed images, to the VOC device 6. The video signals of the image of the object being monitored from the output of the transmitting television camera 8 are also fed to the second measurement logic 7 and a video monitoring unit 6, the scale of the transmitted image is set by codes received from the storage device 3 to the input of the scale unit 9, which regulates the amplitudes of the line and frequency generators rovoy scans of a television camera 8. Thus,

The screen of the video monitor, the operator has the opportunity to observe the combined images of the object being monitored and the measurement template. To accurately align images on the screen, the monitored object is rigidly positioned in front of the lens of the transmitting television camera, and the operation of the scanning devices of the transmitting camera and the video monitoring device is synchronized with pulses.

horizontal and vertical synchronization transmitted from the storage device.

For discrete measurement, the mismatch of the measurement patterns with the images of the objects being monitored is served by the second measurement logic 7, from the output of which the impulse equal to the duration of the mismatch is fed to the inputs of the circuits And 10, 11. The other inputs of the circuit And 10 receive a pulse of the measurement zone on the coordinate X from the first logic circuit 4 and the sequence of pulses from the frequency multiplier 17, while the pulse of the measurement zone on the coordinate X enters the first logic circuit 4 from memory 3 and its duration

and the temporary location determines

the time and location of the meggering, and the sequence of pulses coming from the output of multiplier 17, is formed by multiplying the clock frequency of the charger 3 dO level of resolution P | of the wandering television tube along the line and is the frequency of filling the interval of measurement that does not match the images. To the other input of the second logic circuit "AND AND: the zone pulses are received measuring the Y coordinate; from circuit 14, which compares the readings of the 15 frames and the counter 16 zones of the measurement along the Y coordinate, to the inputs of which 3 pulses of the frame scan and impulses of the zone 3 arrive measurements. Coordinate measurements are made in series, one measurement per frame of television sweep. For this, the zone counter counts in succession the measurement zones, the numbers of which correspond to the frame numbers in which measurements are made in this zone. The outputs of the logic circuits "And 10 and 11 are connected by the inputs of counters 12 and 13, respectively, which, by counting the pulses of the inter (measurement shaft along the X coordinate and the pulses of the measurement zone (one pulse in the line of the tele | evision sweep) along the Y coordinate, determine the discrete error values during neo-image assignment. From the outputs of the counters, error codes are sent to the 18-character generator, which converts the coded messages to image video signals and, through the color block 5, transmits them to the video monitor 6 to display In addition, the code messages of the error values of the mismatches from the outputs of the counters 12 and 13 are transmitted to the computer to analyze and make decisions about the further route of the workpiece. To present the true values of the measured value and possible tolerances from the output of the storage device 3 to the generator input 18 characters are transmitted codes of these quantities.

Subject invention

Television device for monitoring parts processed on machine lines

numerically controlled, containing a television camera, the output of which is connected to the first input of a video monitor, an analyzer unit connected by an output to a storage device through a control device, the second input of which receives a signal from an electronic computer, and the output of the storage device is simultaneously connected to a scaling unit, a frequency multiplier, a frame counter, a measuring area counter along the Y coordinate, with one of the inputs of the television camera, with a second input into ideological control device and with the first input of the signal generator, the second input of which is simultaneously connected to the output of the measurement counter by the Y coordinate and one of the inputs of the electronic computer, the first logic circuit "And with three inputs, one of which is connected to the frequency multiplier and output connected at the same time to the second inputs of the symbol generator and the electronic computer via the measurement counter by coordinate, here you are, the output of the symbol generator is connected to one of the inputs of the color block connected output to the third input of the video monitor, the second logic circuit "And with two inputs and an output connected to the measurement counter by the Y coordinate, and the output of the scaling unit. connected to the second input of the transmitting chamber, characterized in that, in order to improve the accuracy measurements,

the output of the storage device is simultaneously connected with the second input of the chrominance unit, the third input of the first AND logic circuit and one of the inputs of the measurement logic circuit, the second input is connected to the output of the transmitting chamber by an accelerator, and the output simultaneously to the third input of the first AND logic circuit and the first input The second logic circuit "And, while the output of the frame counter is connected to the second input of the second logic circuit" And through the comparison circuit, the second input of which is connected to the output of the counter of measurement zones by the coordinate Y.

From computer

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