SU690644A1 - Electronic code sensor - Google Patents

Description

(54) ELECTRONIC CODE SENSOR

The invention relates to radio engineering and can be used to encode the distinctive call signs of aerodrome radio beacons. An electronic code sensor is known comprising a master oscillator, a pulse driver, an electronic key, a frequency divider and a coding unit whose output is connected to the first input of the frequency divider, the second input. which is connected to the first output of the generator, the second output of which is connected to the first input of the pulse former, the second input of which is connected to the output of the divider Toty, the output of the pulse shaper is connected to the input of the electronic key pervgm 1. However, the known device has insufficient performance. The purpose of the invention is to increase speed. To do this, an electronic code sensor containing a master oscillator, a pulse shaper, an electronic key, a frequency divider and a coding unit whose output is connected to the first input of a frequency divider, the second input of which is connected to the first output of the master oscillator, the second output of which is connected to the first input of the driver pulses, the second input of which is connected to the output of the frequency divider, the output of the pulse shaper of the connections with the first input of the electronic key, the control unit of the frequency divider, block av coding unit, code selection unit, code change unit and pause generation unit, the first output of which is connected to the second input of the electronic key, the third input of which is connected to the first output of the code changeover unit, and the fourth input of the electronic key is connected to the first output of the code selection unit, the second the output of which is connected to the first input of the coding block, the second input of which is connected to the second output of the code changer, the third input of the coding block is connected to the first output of the automatic coding block, and the fourth input the coding unit is connected to the first output of the frequency divider control unit, the first and second additional outputs of the pulse shaper are connected respectively to the first

the input of the frequency divider control unit and with the first input of the code selection unit, the third output of which

connected to the input of the code changer, the third output of which is connected

to the first input of the block forming a 5 pause, the second input of which is connected to the second output of the automatic coding block, the third output of which is connected to

the second input of the code selection unit, the Q third input of which is connected to the second output of the pause generation unit, the output of which is connected to the second input of the control unit of the frequency divider, the second output of which is connected to the first input of the automatic coding unit, the second cbd K oiroppro is connected to the fourth output of the unit forming a pause, the third input of the automatic coding unit is connected to the fourth or fourth output of the code changer, the fifth output of which is connected to the third input of the frequency divider control unit, the fourth turn is connected to the fourth output 25 code selection unit.

The drawing is structural. electrical circuit of the proposed device.

The electronic code sensor contains 30 master oscillator 1, frequency divider 2, shaper 3 pulses, electronic key 4, coding unit

5, frequency divider control unit

6, automatic coding block 35

7, code selection block 8, code change block 9, pause generation block 10,

The device works in the following way.

A continuously operating master oscillator 1 generates symmetrical rectangular pulses that control the entire device and determine the duration of the point.

dashes and spacing

45 callsign.

Suppose that it is necessary to generate the call sign FOR the first control impulse is sent from the output of the master oscillator 1 to the input of the imaging unit 3, and from its output to the inputs of the electronic key 4, the control unit of the divider 6 and the code selection unit 8. The imaging unit 3 is set to the state O, electronic key 4 - in, divider control unit 6 - in 10, automatic coding block 7 - in 10, block of code selection - in 01, block of code change 9 - in 10 and pause forming unit 10 - in 10, in coding block 5 is encoded dash, and the key on its exit ryk dug, therefore, open course

frequency divider 2.

The trailing edge of the first pulse from the master oscillator 1 frequency divider 2 is shifted to coi P1

Og

and its output

The drive to the driver 3 keeps it in the same condition, despite the fact that the impact of the master oscillator 1 has stopped, which is followed, and all other blocks will remain in the same state, the second pulse from the master oscillator 1 will also not affect the driver 3 neither and only at the end of the second pulse, frequency divider 2 will be transferred to state 10 and will stop affecting the input of the former 3. The last return is affected

from to state

to the input of the electronic key 4, trans. On

turns it into a state

the output will generate a dash pulse. By the third impulse from the output of the master oscillator 1 to the input of the imaging unit 3, the latter switches to the state O, and the electronic key 4 to the state t I 1 t f

. Control pulse.

coming from the output of the imaging unit 3 to the input of the control unit of frequency divider 6, switches it to state 01. At its output in coding unit 5, a dash is encoded and the input of frequency divider 2 is open and the falling edge from the master oscillator 1 switches to state 01. The process described above is repeated and the second dash is formed at the output of the electronic key 4. A fifth pulse at the input of driver 3 will switch it & state O, and electronic key 4 in state. The control pulse from the generator 3 output to the input of the frequency divider control unit 6 switches it to state 10, the control pulse from its output switches the automatic coding unit 7 to state 01. The output of the automatic coding unit 7, affecting the first group coding key, in coding block 5, encodes the two following pulses with a dot. The input of the frequency divider 2 is closed, and only the output of the master oscillator 1 will affect the input of the imaging unit 3, and, therefore, when it ends up acting on the input of the imaging unit 3, the latter will go to the state. At the output, create a pulse point. The sixth impulse from the master oscillator 1 to the input of the imaging unit 3 will act as described above, and the control unit divider b will be in state 01. At the output a pulse point will be formed. Thus, at the output of the electronic key 4, the control pulses of the letter 3 are obtained. The eighth pulse from the output of the master oscillator 1 to the input of the driver 3 will switch it to the state O, and the latter will affect the input of the control unit divider b, switch it to the state 10, the latter will switch the automatic coding unit 7 to the Yu state. The coding of the next letter of the callsign will be prepared. The control pulse coming from the output. the automatic coding unit 7 to the first input of the code selection block 8, switches it to state 10. The outputs of the code selection block 8, affect the inputs of the electronic key; The block 4 and the divider control block b, will close them, affecting the coding block 5, will open the splitter 2 input to start the falling edge of the master oscillator 1, a dash pulse will be generated at the output of the shaper 3, but the electronic key 4 is closed and controlling There is no tension at his exit. The ninth pulse from the master oscillator 1 at the input of the generator 3 switches its O state. The control pulse from the generator 3 to the input of the control unit of the divider b cannot act, since it is closed from the output of the code selector 8, and therefore it acts only to the second input of the code selection block 8 and switches it to the state. The inputs of the control unit divider b and the electronic key 4, which enters the state, are opened. The control pulse from the output of the code selection block 8 to the input of the code change block 9 transfers it to state 01. From the output of the code change block 9, the codes in the coding block 5 are changed by means of diode keys, and the control pulse at the input of the automatic coding block 7 flips its state 01. This will reduce the number of possible coded pulses from 4 to 2, and a point will be encoded in coding block 5, the input of frequency divider 2 will be closed and only the pulse from master oscillator 1 will affect the input of shaper 3. ode electronic key 4 after SFOR interval miruets control pulse point A tenth pulse from the master oscillator 1 at the input of the switch 3 in its ON state, electrons and Key 4, respectively in state. The control pulse from the generator 3 output, switches the latter to state 01 to the input of the divider control block b. In the coding block 5, a dash is encoded, and the input of frequency divider 2 is open for triggering. At the output of the driver 3 and the electronic key 4, a control pulse of the dash is formed, and now the full signal FOR will be formed. The twelfth pulse will begin to form an interval, after which the divider control block b will be in the state, 10, the automatic coding block 7 in the state 10, the code selection block 8 in the state .10. The input of the control unit divider 6 is closed, the input of the electronic key 4 is closed, and its state is -O. The fourteenth impulse from master oscillator 1 to input shapers 3 switches it to state O and a control pulse at input of code selection block 8 transfers the latter to state 01. The input of control unit divider b and electronic switch 4 will open. Control pulse from unit output the selection of the core and B to the input of the code change block 9 is transferred to the state. The code change in the coding block 5 from the second to the first will occur. The control pulse from the output of the code changer unit 9 to the input of the pause forming unit 10 will transfer the latter to the state 01. I will affect its output on the electronic key 4 to keep it in the O / state and there will be no output signal. At the same time, the control signal from the pause generation unit 10 will be applied to the first input of the code selection block B and transfer it to the state 10; The described process of forming the interval will occur. Sixteen pulses from the output of the master oscillator 1 to the input of the imaging unit 3 last act on the second input of the block, select code 8 and switch its state 01, the control pulse from the output of the block of code 8 to the input of the code changer 9 switches the last one to state 01 The code will change in coding block 5, and the second code will be included in the work, and the first one will be excluded. In the future, the letter A will be formed, with the only difference that the input of the electronic key 4 is closed, and there is no signal at its output. The pause time can be lengthened by including both codes, and even more lengthen the pause, forming both letters at this time from one dash, or shorten the pause, forming letters from one point by appropriately turning on the outputs of the pause forming unit of block 10 on the coding block 5. When the pause is completed, all blocks return to their original state. and the call signal coding process is resumed in the sequence described above. The proposed device allows receiving control signals, in particular radio beacon callsigns, in an automatically repeating mode and, due to a small number of elements, has high reliability, easy repetition, low cost, and high performance.

Claims (1)

1. USSR author's certificate 508956, cl. H 04 L 15/28, 1974.