SU384717A1 - DEVICE FOR RECEIVING TELECOMMUNICATION SIGNALS IN DISPATCH CENTRALIZATION - Google Patents

Description

one

The invention relates to the field of railway transport, namely to the control room devices of centralized traffic control.

Devices are known that contain an amplifier whose input is connected to a linear one, and the output is not connected well to the first “turn” of the phase detector and through a successively connected frequency doubler, a reference switch (rafor and a frequency divider by two - iKO to the second in turn of the phase detector; the decoder, the output of which is connected to (transponder inputs of the frequency divider and transmitter of signalization signals, the output of the KOToiporo is connected to a linear circuit, and the output of the frequency divider is connected to the STOpOiMy input of the transmitter of signalization signals.

The purpose of the invention is to increase the reliability of the device. This is achieved by the fact that it is equipped with an electronic key, an information signal frequency divider and a tact-following frequency, a dividing trigger, an end-drip block, and two blocks of matches, and the output of the electronic key through a frequency divider signal by the clock-following frequency connected to the time (Divider trigger, (the first output of which is connected to the second input of one N | 0G. match block and the read input of the receiving end block, and the second output to the second input of another match) The output of the phase detector is connected to the first inputs of both blocks, the KOTOipbix OUTPUTS are connected to the decoder inputs, and the output of the first matching unit is connected with the input end suppression input, the output of which is connected to the input of the electronic key, separation trigger and frequency divider u: information signal per frequency: ct.

On 1fig. 1 shows the diagram of the operation of the device when receiving remote control signals.

The construction of the signaling circuit (equal to 1 is characterized by the fact that the change in the signal phase occurs both at the boundary of x clock cycles (clock cycles) that have the same duration, and so in the middle of clock cycles when transmitting the logical symbol 1 (logical). Figure 1 shows the construction of a whitefish remote control with five informational cycles (IT-5T) and an initial cycle.

(FROM), iKOTOpOiM always transmits the lopic SYMBOL "O.

At the beginning of reception of the signal (point 1 in Fig. 1 b), the Receivers start up (and the separating trigger, whose operation is shown in Fig. Is. The separation trigger produces signals with frequency B Two: times the clock frequency "with a shift ino phase for one quarter of the duration of the cycle of reception of the remote control.

When the dividing trigger takes 1PO31I1TsIlI, marked with the letter T, the clock from the phase change, the signal being sig- nated is (thin a) trio-triggered by the device, which has a clock count (fig. 1 g). The position of the separating tr1igge | pa of positions from the letter / C, the logical "snake phase 1P1r AND | H; and 1M of the primary (point b) leads to the appearance of impulses (| f, ig. 1e ) in those cycles; x of the signal, IB. which the logical symbol “1” is transmitted (see the T, ZT and 57 cycles in Fig. 1 a), then 1 as in the signal cycles containing the logical symbol “O (see the OT cycles, 2Т and 47 p: i, d. 1), these impulses are absent. If the next clock change: Enlie Phase Ie edeet places, for example,; in tach.kk 2 (see. Fig. 1 g), the signal continues at p. I.rnuyu direct, then in the moment of the transition separation trigger from state T to state / С inpneMHOie the device switches from the working state to the output state (cm point 3 in Fig. 1 b) and the signal will be higher.

On . 2 shows pp., P1; p a of the device circuit. It contains an amplifier 4, doubled; an itel frequency 5, a sol | p, a ny generator 6, a frequency divider a two 7, a phase detector 5, an electronic switch 9, a frequency divider: infor mA, the H1N signal on the tracking frequency TaiKTOB 10, separator trigger 11. coprogram block 12 for selecting such phase changes, block coping. ILI 13 for selecting logical phase changes, block end of reception 14, decoder 15, frequency divider 16, signal transmitter (dial signal) 17 and linear circuit.

The device works in the following manner.

In And m. Of the ir state and the absence of a signal from the output of the f | a.z detector of 8, the blocks 9, 10, 11 and 15 are blocked by the circuit F with the signal,: the incoming M from the receiving control unit 14.

When the signal 1 is output at the output of the phase detector 8, the electronic switch 9 is unlocked and switches on the reference generator 6 to the frequency divider u / form1Cio1N of the signal to the frequency of the following signal | KT 10; from the output of block 10 and .nom.atation; to, the pulses arrive "and the input of the dividing trigger // with a frequency two times higher than the frequency of the traces of cycles. Ave. and this is the luvl-imllulse | enters the LOSLE of the beginning of the reception with a shift in time by / 4 dL: itel: nost.and TaiKTa. The signal from the output of the trigger 11 acts on the blocks of a sludge aden 12 n 13, O1 unsupported wil 1 by alternately opening them to the OUTPUT T and / C.

When a pulse arrives at the input of the coincidence unit 12, it simultaneously appears

PA input record 3 14.

As a result of ONE-time arrival of pulses at the input of the 1 match unit 12 from the phase detector 8 and the trigger // is separated, at the output T of the unit 12 it turns on, the signal, which acts on the gas detector input G of the block 14. If the phase detector 8 has the expected pulse. . enters, then. on the output T of the block 12 of the blanking signal will not be and three next .m switching the dividing trigger

11, the signal from its output will go to read input C of unit 14, which will block blocks I 10, 11 and 15 through the circuit F. The device returns to its initial state.

PRE IMIT from O b ete n i

A device for receiving telecontrol signals in a centralized control room, containing an amplifier whose INPUT is connected to a linear circuit, and the output is connected to the primary input of the phase detector and through a serially connected frequency doubler, reference generator, p and divider frequencies for two - to vto vromu

Phase detector, detector, the output of which is connected to the neipBbiM inputs of the frequency divider and the transmitter of the telealarm signal signals, the OUT of which is connected to a linear circuit, la the output of the frequency divider is connected

, to the second input of the operator of the remote signaling signal, characterized in that, in order to improve the reliability of the device, it is equipped with an electronic key, the signaling frequency

on the frequency of the traces of the clock, p1 of the trigger, block of the reception and two blocks of coincidence, and the output of the electronic key through the frequency divider: information of the signal of the clock of the strokes of the trigger to the distribution of the trigger , the first .output of which is connected to the second input of one block of the same day and the input of the input end of the block, and the second output to the BTOpoiMy of the other

a match block and a write end entry block entry; the output of the phase detector is connected to the first inputs of both coincidence units, the outputs of which are connected to an | h.od;; m still a digger, with This; m the output of the inepBO block and coincidence is connected to the input of the end receiving block, the output of which is 1RDU | KEYKU IKO v.hodam electronic key, dividing trigger | ra and frequency divider pnfo.rmatsi.o.nN01G0 signal to frequency

follow steps.