SU1231631A1 - Television device for measuring linear dimensions of object - Google Patents

Abstract

The invention provides enhanced functionality of the device and increased accuracy in measuring the dimensions of an object. The start signal from the start block 6 is fed to the frame synchronization block 7 and to the block of the horizontal video pulse (BVCVI) 11, the video signal from the television camera 1 passes through the video amplifier 3 to the selector 9 of the video pulses. From block 2 of frame scanning and block 4 of line scanning, the corresponding signals arrive at BWCMI 11, to which also pulses of a certain level are received, selected by the selector of 9 video pulses. From one output of BVSVI 11, the signal arrives at block 15 of the line, which, by measuring fame or brightness, makes the control lines on the screen of video control unit 16. Element I I3 receives pulses from the generator 5 clock pulses and the signal of the other output BVSPI I1. The signal from the output of the element with € (L tpfi.

Description

.And 13 enters BWCWI II and the counter 14 pulses. The counter 14 counts the number of pulses, according to KOTOpoNfy, the duration of the selected video pulses in the control lines is determined, and this number determines the extent to which it relates to television and radio engineering, namely, to television measurement systems.

The aim of the invention is to expand the functional capabilities of the device and improve the accuracy of measuring the dimensions of the object.

FIG. Figure 1 shows the sturn electrical circuit of the device; 2 is a structural electrical block diagram of the frame synchronization; FIG. 3 is a structural electrical circuit of a horizontal video pulse allocation unit; Fig. 4 shows a structural electrical circuit of a driver for three pulsing pulses.

A television device for measuring the dimensions of an object contains a television camera 1, a frame scanner unit 2, a video amplifier 3, a line scanner unit 4, a generator of 5 clock pulses, a start unit 6, a frame synchronization unit 7, the first element I 8, a video pulse selector 9, a nerve counter 10 units; block 11; selection of a horizontal video pulse; shaper 12 controls sweeping pulses; second element AND 13; second counter 14 pulses; block 15 selection of lines, video control unit 16.

Block 7 frame synchronization (.Fig.2) contains a trigger 7.1, inverter 7.2, element And 7.3, element And 7.4, trigger 7.5.

Block 11 selection line video pulse (Fig.Z) contains the trigger 11.1, the threshold element 11.2, the element And 11.3, the element And 11.4, the trigger 11.5, the element And 11.6, the trigger 11.7, the element And I 1.8.

Shaper 12 control pulses (Fig. 4) contains a trigger 12, .. with a counting input, the element And 12.2. Horizontal size. Counter 10, which receives impulses from the AND 8 element, counts the number of selected video pulses in one half-frame. From this number, the vertical size is determined. 4 il.

The television device operates as follows.

From the output of the start block 6 to the input of the frame synchronization block 7 (the first input of the trigger 7.1) and to the input of the block 11 of the lowercase video pulse (the first input of the trigger 11.1), a trigger signal is received, which sets these triggers to state 1.

At the input of the inverter 7.2, the first inputs of the And 7.4 and 11.3 elements, state 1 is set, and the output of the inverter 7.2 and the first input of the And 7.3 element is set the O state.

From the output of frame scanning unit 2, the signal is fed to the input of frame synchronization unit 7 (second inputs of And 7.3, 7.4 elements), to the input of block 11 for selecting the horizontal video pulse (input of threshold element 11.2) and input of And 11.3 element, as well as to the input of the imaging unit 12 ( first trigger input 12.1).

At the output of the elements And 7.4, 11.3 and the first inputs of the triggers 7.5 and 11.5, state 1 is set. At the output of the trigger 12.1 and the first input of the element 12.2, the state O is established.

At the output of the element And 7.3 and the second input of the trigger 7.5, the state O is set, and at the output of the trigger 7.5, the output of the frame synchronization unit 7 and at the input of the element 8, the state

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When a certain signal level of the frame scan is reached at the input of the selection unit 11, the horizontal video pulse, the input of the threshold element 11.2, its output and the first input

element 11.4 is set to state 1.

From the output of the block 4 line scanning to the input of the block 11 of the division of the row video impulse (the second input of the element 11.4) and the input of the imaging unit 12 (the second input of the element 12.2) receive the horizontal pulses.

At the output of the imaging unit 12 (output of the element 12.2), the input of the block M at the slot of the horizontal video pulse (the second inputs of the trigger 11.5, 11.7) is set to the state O.

At the output of the trigger I1.5 and the first input of the element II.6, the state 1 is established and the second input of the element 11.6 receives impulses from the output of the element 11.4.

 At the output of the block 11 for the insertion of the horizontal video pulse (the output of the trigger 11.7 and the first input of the element 11.8), the state 1 is set.

The signal from the second output of block 11 for selecting the line video impulse is fed to the input of block 15 for selecting the line.

Block 15 inline of the line by measuring the color or brightness of the control lines on the screen of the video control unit 16.

From the output of the video amplifier 3 to the input of the selector 9 video pulses received video pulses. The video pulse selector 9 selects pulses of a certain level, which are fed to the input of the element AND 8 and to the input of the block 1I for selecting a horizontal video pulse (the second input of the element 11.8).

From the output of the element 8 to the input of the counter 10 and the input of the block 7 frame synchronization (the second input of the trigger 7.1), pulses are received, which are counted by the counter 10 and set the trigger 7.1 to the state O.

The input element And 13 and the input of the imaging unit 12 (the counting input of the trigger 12.) receives pulses from the output of block 1I of the lowercase video pulse (the output of the logic element And 11.8), and the input of the element And 13 receives pulses from the generator output 5 clock pulses.

, From the output of the element I 13 to the input of the counter 14 pulses and the input of the block 11 in the slot of the horizontal video pulse (the second input of trigger 1) pulses are received, which are counted by the counter 14 and set the trigger 11.1 to the state O.

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 When the generator 12 arrives at the input (counting input of trigger 12.1) of several pulses (3) from the first output of block 11, the lower-case 5 video pulses (output of element 11.8) the output of trigger 12. G is set to state 1,

At the output of the imaging unit 12 and the input of the unit 1 in the slot of the lower-case video fO de-impulse (the second inputs of the flip-flops 11.5, 11.7) the state 1 is established.

The triggers 11.5 and 11.7 are set to a state. O and the pulse counting by the counter 14 is stopped.

Upon receipt of the next burner from the output of the vertical scanning unit, the system is reset to the initial state 20

Thus, the counter 10 counts the number of video pulses allocated in one half-frame, and the vertical number is determined from this number.

5 size.

Pulse counter 14 counts the number of pulses by which the duration of the video pulses in the control lines (3) is determined, and the horizontal size is determined by this number.

Claims (1)

Formula of gain A television device for measuring the object's linear dimensions, comprising a serially connected television camera, video amplifier, video pulse selector, the first And element and the first pulse counter, a launcher, frame and line scanning blocks, whose inputs are connected to the second and third outputs of the television camera, respectively and a clock pulse generator, characterized in that, in order to expand the functional capabilities of the device and improve the accuracy of measuring the dimensions of an object in it. the frame synchronization block is inserted, connected between the output of the trigger block and the second input of the first element, the second input of the frame synchronization block is combined with the input the first pulse counter, the block selection line horizontal pulse, the format of the control pulses connected in series by the second the element I, the first input of which, in conjunction with the output of the clock generator and the second pulse counter, sequentially connects a line selection block, whose input is connected to the first output of the horizontal video pulse selection block, and a video control block, the first input of the block of the horizontal video pulse combined with the first input of the frame synchronization block, the second input is combined with the third input of the frame synchronization block, the first input of the driver of control pulses, and the frame is connected to the output of the block howl Compiled by I.Gratsianska Editor II.Slobod nickname Tehred O.Gortvay Proofreader E.Sirohman Order .бб2 / 58 Circulation 624 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, L {-35, Raushsk nab., d.-4/5 Production and loligraphic enterprise, Uzhgorod, st. Project, 4 sweep, the third input of the horizontal video pulse allocation unit is combined with the second input of the imaging unit control pulses and connected to the output of the horizontal scanning unit, the fourth, fifth and sixth inputs of the horizontal video impulse slot are connected respectively to the output of the control pulse generator, the second output of the video pulse selector and the output of the second element I, and the second output is connected to the combined second input of the second element and and the third input of the driver control pulse. Fkg .. Fig.Z Fy