SU1453605A1 - Information transceiver - Google Patents

Abstract

The invention relates to a data exchange technique. The purpose of the invention is to increase the probability of bringing codograms in a group of stations. The device contains a transmitter 1, a clock 2, a shaper 3 of the frequency code, a receiver 4, a decoder 5, a control unit (BC) 6 occupancy of the channel, El And 7, 14, 15, 16, and 17, priority generation unit 8, input unit 9 messages, encoders 10, 11, and 12, display 13, comparator 18, registers 19 and: 20 memories, memory 2, .BK 22 signal quality and route selection block (BVM) 23. The codogram to be transmitted contains the address: part, transit sign, priority sign and information onnuyu part. Transmitted the codogram is accepted by one of the subscribers; {station g t

Description

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groups, if according to the propagation conditions of the radio waves:. (; they have a connection When receiving a cohort, from the output of receiver A goes to the output of the decoder 5j performing decoding, the co-ordination AorpaMNfbij c is also allocated address1

The invention relates to a communication technique and can be used to transmit short code sets, for example, commands to control a group of territories :) of separated users.

The purpose of the invention is to increase the cadratchm in the station group 1 «

In FIG. 1, the layout of the proposed scheme is: a; in fig. 2 block diagram of the block marsh1) uta.

The device for transmitting and receiving information contains a transmitter 1, a chronizer 2, a shaper 3 of the frequency code, a receiver 45, a decoder 5, a block 6 for controlling the channel, the first element AND 7, a block 8 for priority setting J a message input block 9, a first encoder 10, the second coder 11, third coder 12, board 13 mappings, second third, fourth and fifth elements 14–17, comparator IBj first and second registers 19 and 20 of memory, block 2 pa1-1 ti, block

22 control signal quality unit

23 of the route selection, consisting of the first unit Element And 24, the register 25 of the slice, the decoders 26 and

27s of the item OR 28, the element AND 29, the distributor 30j of the second and, third blocks. 31 and 32i, el (; cops of the first and second blocks 33: and 34 elements of memory and element of the switchgear assembly 35,

BLOCK 23 route selection works as follows.

In the recording mode, the analysis of the address part of the received codec {1st 1 is carried out by the following sample, the address part goes to the address register 25 of the code combination corresponding to; and the receiver number, from the output of the register 25, goes to the input of the decoder 26 and is decoded At one of its outputs

of the transit part, the sign of the priority of the information part of the codogram. . Information about the state of the communication channels between subscribers and the group is displayed on the scoreboard 13. 1 a.p. L-ly, 2 Il.

five

ten

50

0

35

40

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A unit appears, which is then fed to the second inputs of block 33 of memory elements. Moreover, each output of the decoder 26 corresponds to a specific receiver number 4, t, e, a specific station group. The first input of the block of 33 elements receives a unit from the decoder 27, which corresponds to a certain number of the transmitter that transmitted the waveform. The signal that permits recording is the unit from the output of block 22 to the input bus 1 Recording. This unit allows writing information into a block of 33 memory elements.

Recording information in the form of zeros and ones in block 33 of memory elements is similar, the difference is in the number of receiver 4, which corresponds to the number of the central station.

In the read mode, the information is read on the display 13 through the output of the block 23 of the choice of the transmission of the codogram directly,

If the codogram is transit, then the receiver number 4 of the station through which the codogram will be transmitted is automatically selected.

The selection of the number of the receiver 4 is carried out in the following manner.

When selecting the sign of transit at the output of the element OR 28, a unit appears that triggers the GTP pulse distributor.

Distributor 30 pulses issued; There are successively pulses per blocks 31 and 32 of the elements AND, thus interrogating successively two elements of the block 33 of memory elements. When a unit 33 memory elements appear at the outputs, the corresponding block 31 elements AND triggers,

The corresponding codecs of the 31 elements And are connected at the same time .. from the input of the –sh element OR 35, which stops the distributor 30 pulses when at the entrance of at least one unit.

The device works as follows.

Chronizator 2 of the device for transmitting and receiving information generates a periodic sequence of pulses of the time cycle T, acting 15 "to the priority and in accordance with

on the shaper 3 of the frequency code, a certain number of pulses of the time intervals n of the signal transmission arriving at the priority shaping unit 8 and the pulses of the time intervals of the channel occupancy analysis arriving at the channel occupancy control unit 6.

Upon receipt of the signals TCs shaper 3 frequency code generates codes of operating frequencies and outputs them to the inputs np -jeMHHKa 4 and transmitter 1,

After setting up the receiver 4, the pulse sequence from its output goes to the decoder 5 and the block 6 of the channel occupancy control.

Decoder 5 FUNCTIONS. leT code-transform the incoming sequence and extract the message. The number of inputs to the decoder 51 corresponds to the number of bits; combinations of the code to be converted, and the number of outputs m - the number of bits .. in the combinations of the converted code.

The channel occupancy control unit 6 at time intervals conducts a statistical control of the structure of the steps to it from the receiver 4 of the pulse sequence, for example, according to the parameters of the distribution of the pulse duration and the structure of the transformed information sent to it from the decoder 5,

When detecting the structure of random radio interference, block 6 makes a decision about channel idleness, in case of detecting the structure of a signal, deciding whether it is occupied by other stations. Corresponding signals are sent to the input of the And 7 element,

The codogram to be transmitted contains the address part. a sign of transit, a sign of priority and in20

25

with priorities organizes service.

The code of the priority sign from the output of block 9 is fed to block 8 of the topMHp priority, which introduces a time delay for the transmission of codograms by shifting the front of t, t, coming to it from chroniser 2 in this time cycle Tu, to

L, D ..

thirty

35

a certain value of d V, while the priority has a higher value of l 2 ;. The value can be set by a variable.

Introducing delays in the transmission of codograms allows us to transmit any time interval dt of the code to us with different priorities in the absence of codograms of higher priority, and also to eliminate the possibility of messages from several stations (along with channel occupancy control).

The signal l from the output of the block 8 forms no priority enters the element

40 and 7 5 which, when the signals of the formation block 8 and the channel empty signal from block 6 match, give a signal to receiver 4, message input block 9 and transmitter 1, this tax locks receiver input 4, the transmitter 1 is turned on and the waveform is entered from block 9 through

first encoder 10.

If the codogram is not transmitted in the first interval t due to channel bandwidth (there is no match on the And 7 element), then the transmission is: when the channel is released in the next interval.

At the end of the codogram, the signal from the output of the And 7 element turns off the transmitter i and unlocks the input of the receiver 4, If during a period of time

55

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the form and part is entered using block 9 of the external command.

Codograms from subscribers go to memory register 20 via the input bus, comparator 18 compares the codogram priority from the subscriber to the priority of the transit codogram (if such exists). Recorded in register 0 i9 of memory. The codogram with a higher KIM priority through the elements H 16 or 15 goes to the message input block 9,

Block 9 out of the codogram

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with priorities organizes service.

The code of the priority sign from the output of block 9 is sent to block 8 of the topMHp priority, which introduces the time delay of transmission of codograms by shifting the front of pulses t, - coming from chroniser 2 in this time cycle Tu, to

L, D ..

0

five

a certain value of d V, while the priority has a higher value of l 2 ;. The value can be set by a variable.

Introducing delays in the transmission of codograms allows us to transmit any time interval dt of the code to us with different priorities in the absence of codograms of higher priority, and also to eliminate the possibility of messages from several stations (along with channel occupancy control).

The signal L from the output of the priority shaping unit 8 goes to the element

0 and 7 5 which, when the signals from the formation block 8 and the channel empty signal from block 6 match, give a signal to the receiver 4, the message input block 9 and the transmitter 1, this signal blocks the input of the receiver 4 ,, turns on the transmitter 1 and resolves input of the codogram from block 9 through

first encoder 10.

If the codogram is not transmitted in the first interval t due to channel bandwidth (there is no match on the And 7 element), then the transmission is: when the channel is released in the next interval.

At the end of the codogram, the signal from the output of the And 7 element turns off the transmitter i and releases the input of the receiver 4, If during the period of time

five

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exchange 2 TP HP. comes in, confirming - - v, the respondent; This is a copy of the transmissions of the cops, from - the first - the receipt of the receipt of the psgrtg is not printed,

Perzdanng. also oRp subscribers kdogrlk1-1P iii: mi stations rumpy, ;; m spread e; g: they are

When receiving; -: e gr receiver; comes dera 5j poop; Estv Jupe; -; - codograms; And Tagsk VK; Noah part 5 g: rnzya: :: sa kak priorityp-m-t ::; fsr;. :: codograms;

Adresla h; 1.;: T: it is the E register 25; .g1 of the choice of marirut;

If the address is 2, the address is from; Іrpi tone, from block 23 1..ostu1-.and gs element And 17 .; paspsniar grams abo; 1gptu dannsy

output iliiiJ y .i

With Byda.gy ... endeavor from the exit of the blos 23 lo;: t; at the entrance ele1-: e G; a: 1 ;, letter code ;.Ы1 1г. chgrez ;, in block 21 pg gi,

Monogram .... 1cn cai - :. aj. element and 14 raare ia; i register 19 g: a -1 ti with lsg transmitter and ocyuacrBj: block 23 of choice i-iapuipy: information i, alo l 21 l ,; 19 memory ncci-ulaet z g code

By; :: ipag; u with zykhod block 23 BYBS rama;, ll:, uteni .H: o; -i6pf. ; ;; OD1-W from input cob Ki-u- oopasoi-i lr ..;:.; L-: yes codar 12 sani-ics jsae L part granz1; tlols sbpre 9 lak ll,

 22 OsushzstBlet kazhenn.l;: 1 kodolis:,;; ol5il vpekpeil lore golaylo member

 and ,,, ....,. „, -, -.,

fell il..i.D;, .0. S-.ljiJr, v.

in feed, then Eydast SLG: This one, -, gna 1, one Ea., surrendering Sj: falls on .. sod: l; ola 23 forbids bend llfor1 and 33 elelei gov jaachlai. about

channels of group stations among themselves,

Information about the status of the channels between subscribers rpynra-i stores- in block 33 of the memory elements and is displayed from the station's generator on the display 13

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Claims (1)

I, transmission structure -,: - receptions; and; d:. J contains the transmitting part riCi successively connected message input unit, the first encoder and transmitting, and in the receiving part serially connected receiver, control unit; the number of channels and the nerve elements; From the output of which is connected to the input ...:, am1; rach: h: occurrences of the message input box and the city of the editor tach8 a ta1: the same chronizer, the outputs of which are connected by g; the syncro inputs of the canal control block; K53j through the frequency code driver with the inputs; receiver and transmitter triples; and through the priority driver with the second input of the first element lij, the output of the receiver is connected .1. served / (which has been connected to; with .. answers to the search. input of the co.ntro block .. .. for busy cal.ala; while the priority signal course is connected to the input of the forming unit:; priority, t-l and h a to; sh e e so that, in order to increase the likelihood of finishing the codograms, e stations, the signal quality control unit connected in series, the route selection unit, the second And element, the second encoder, the first memory register, the comparator and the third And element, and the fourth and fifth And elements, the second memory register, the third encoder and block na, with the output of the third element m t and The second output of the comparator is connected to the input of the resolution of the input unit coOE; the second output of the comparator is connected to the input of the fourth element I, the output of which is combined with the output of the third element Lz and the second input is connected to the second input through the second memory register - Larator, the output of the first element And through the unit of input with the input Reset i ::;: p3oro of the register of the memory, the second Eocode of which is connected to the second input of the third element And, second (output of the block for choosing the route 714 dinene with the first input of the 5th element And, the second input of which is connected to the second input of the second element And, the input of the quality control unit is a signal and connected to the address output of the decoder, the output of the second slutke signal of which is connected to the second input of the route selector, the third output of which through the third the encoder is connected to the recording input of the first memory register, the output of the third decoder clock signal is connected to the second input of the signal quality control unit. 2, the device according to claim I, characterized in that the route selection block is composed of a serially connected address register, a first decoder, a first block of memory elements, a first block of AND elements, a second block of AND elements, a first OR element and a distributor, the outputs of which connected to the second input of the first block of elements And and the first input of the third block of elements And, the outputs of which are connected to the second inputs of the second block of elements And, the second decoder, the outputs of which are connected to the first inputs of the first and second blocks of memory elements and the second inputs of which are connected to the input of the element And, the second input of which through the second element OR is connected to the bit inputs of the register, the outputs of the first the decoder is connected to the second inputs of the second block of memory elements, the third inputs of the first and second blocks of memory elements are connected to the control inputs of the route selector, the outputs of the second block of memory elements are connected the second inputs of AND gates of the third block and the first inputs of AND gates of the first block, the address register input is a first input of the route selecting unit, the outputs of AND gates, the third unit element, and second unit output memory elements are respectively first and vtorlgm the third output of the route selection block, and the first bit of the address register is connected to the input of the second decoder.