SU658516A1 - Television follow-up system - Google Patents

Description

(54) TELEVISION MONITORING DEVICE

I

The invention relates to television and can be used for light sources.

A television tracking device is known, comprising a series-connected transmitting television tube unit and a video amplifier connected by its output to two scanning channels in X and Y, each of which consists of n-series connected elements I, a tracking integrator, an amplifier, deflection coils and a resistor, a controlled oscillator connected through a pulse shaping unit with additional deflection coils, the connection points of the additional deflection coils and x resistors are connected through additional amplifiers to the inputs of the servo and other inputs relevant elements integrators and .1.

However, the known device does not provide sufficient accuracy and noise immunity due to a change in the transmission coefficient of the time discriminator as the duration of the video signal changes.

The purpose of the invention is to improve the accuracy and noise immunity of the device.

To do this, the television tracking device, containing a series-connected transmission television unit

 tubes and video amplifiers connected by their output to two X and Y sweep channels, each of which consists of a series-connected element I, a tracking integrator, an amplifier, a deflection coil and a resistor, a controlled auto-oscillator connected via a scan pulse shaping unit with additional deflection coils The connection points for additional deflection coils and additional resistors are connected via additional amplifiers to the inputs of the tracking integrator and other inputs And, a sequentially connected unit for forming selector pulses was added, an additional element And and an integrator were added, the output of the controlled autogenerator was connected to the input of the selector pulses forming unit, the integrator output was connected to the control input of the controlled autogenerator, and the secondary input of the generator was installed. of the element And is connected to the output of videochilitl,

In the drawing, a structural electrical circuit is presented for 1 () () th HCTFsa device.

The television tracking device contains, and a sequence of, a connected transmission unit of a television tube 1 and a video amplifier 2, which is connected to its own output; X and Y to two scanning channels, each of which consists of series-connected elements AND 3, tracking integrator 4, power 5, deflection coil 6 and resistor 7, un) auxiliary auto-oscillator 8, connected via a scaling pulse shaping unit 9 with additional catches | kami rejected) 10, and the connection points are additional Ptel) b (x deflection coils 10 and groundball 1) 1x of resistors 11 wiring 1P1 | through the additional amplifiers 12 to the inputs of the tracking integrator 4 and other inputs of the corresponding And 3 elements, and subsequently the selector impulse shaping unit 3, the preiolite and 14, and the integrator 15 are connected, the output being controlled by the autogenerator 8 is connected to the input the pulse shaping unit 9, the integrator output 15 to the control input of the controlled autogenerator 8, and the second input of the donor element And 14 is connected to the output of the video amplifier 2.

The device works as follows.

As a result of detecting the desired object, the signal from the OP1 transmission block, the television tube 1 goes to the video viewer. 7, from the output of which, after optimal filtering and amplitude restriction, the video signal is fed to the elements I and I of the scanning channels X and Y, to the other inputs through D (uyul 1) 1e the amplifiers 12 receive pulses generated by the formation of scattering pulse 9. The signals from the outputs of the elements And 3 are sent to the inputs of the tracking integrator 4, from the output of which the error signals in the form of constant voltages polarity and amplitude proportional to the magnitude of the temporal mismatch of the centers of the sweep and image, through the amplifiers 5 arrive at the deviation catatpices 6. The currents flowing along the deflection. I 6, shift the center of the sweep along the two axes X and Y and compensate with a certain accuracy of its mismatch with the center of the image of the object.

Automatic adjustment of the video signal duration (respectively, adjustment of the dimensions of the trace of the Phen sweep), which allows to obtain the smallest 1 squared mean squared error of determining the coordinates of light sources, which is especially important when

(); 1.Nomnom accompaniment of several objects, 1PN) iz () to the track |) P1nm image. NS, 1I d.pgsgsyk.kl video signal np (jH3) О. change, .1as, for example, has decreased, then increasing the voltage on the output of the integrator 15 will become meager than the original, since

For the early impulses to be activated, the api, which was taken with the doio, t11 | D10r0 of the element I 14, diminished in proportion to the change in the length of the video). As a result of a decrease in the voltage level of the error signal, the frequency of the output signal of the controller of the auto-oscillator 8, the initial one depends on a certain operating voltage, which will also lead to an increase in the network sweep rate and an increase in the video signal duration. . P (after trenching) randomly 1-o--. The length of time, the duration of the bus will increase, and therefore n) the inverse frequency tuning of the oscillator 8 will be reversed. (..that N1a. mom, will work with the previously set n, 1st frequency and measure. follow the sweep, determined. MP Ave.ogramnom ustpoik vom.

The processing time of the clutch (durable1) Nosti video1 gpa..1a, with unreasonableHii function and integrator 15, the same

1 byte of the form, from the transfer function of the ideal integrator, is determined by the speed of the frequency control of the autoheater 8 and is not more than one

perpoda sledzhtsey sweep. Since the amn. Currents of the indicated sweep are rather small, then the practical (Lo influence I1 duct - s) of an additional L1P1 body of deviation 12 over the size of the reader .1az1 ертtknn in G1red, the frequency tuning range of autoheppe ( 8) Ator 8 did not render;

This also increases the accuracy and noise immunity of the () zipchit-tyn device).

He, (the next trace is nothing, one that composes the main body, one inclusively (One side before; and) One body of the iphone tube and video enhancement, pod, Pochepsh, your first (.) Home

to two channels scan X and Y, each | ) 1 K of KOTOpbix consists of a succession of; n, but Compound In and Element I, an integrator of the follower, a forceplate, a deviation skull and a resistor, controlled by an autogenerator connected through a pulse shaping unit

scans with additional otlopepy coils, with connection points, neither 7i) 1: optional deflection coils and additional; 1n1 resistors are connected via 1.4pcive wires; 1 switches to the I1 and TopToot tracking inputs, and other inputs of the corresponding - | 1) 1P.and elements AND, different from, for the purpose of improving the accuracy and noise immunity (); , an input unit, a 1-unit-switched selector pulse shaping unit, an additional element I. and an integrator, with the output controlled, and a 5-generator connected to the input of the forming unit for selector impulses, the integrator output to the control input of the controlled aBToretiepa76

The second input is an additional element And is connected to the output of the video amplifier.

Sources of information taken into account in the examination

I. USSR Copyright Certificate No. 407253, cl. G 01 S 9/62 ,. 1973.