RU1786684C - Two-way remote signalling device - Google Patents

Abstract

The invention relates to a tele-signaling technique. The goal is to simplify by shortening the wires in the communication line. The device contains a central console and N subscriber units. The central console comprises a clock generator, a code packet generating unit, a signal conditioner., A feedback signal collector, a first indication unit. 2. Each of the subscriber units comprises a power supply unit, a pulse selector, an impulse driver, a counter, a trigger, a comparator, a reference code generator, a second indication unit, and a feedback unit. Using pulses at the output of the divider in the code sending unit, a write pulse is generated that examines the state of the register in the same block into which the address of the called subscriber unit is entered. This address, in the form of a series of pulses, is transmitted to a line at the output of which is received by a counter through a selector. In the comparator, the received number of pulses is compared with the reference assigned to this subscriber unit. In case of coincidence with the comparator, a signal is transmitted to the second display unit and to the feedback unit. 3 C.p. f-ls, 6 ill.

Description

The invention relates to radio engineering, in particular to signaling devices, and can be used in communication lines, for example, for transmitting discrete signals.

A two-way tele-signaling device is known, comprising a central control unit and N subscriber units connected by a communication line, the central control unit comprising a clock pulse generator, the output of which is connected to an input of a code transmission unit, and also a feedback signal selector and an indication unit connected in series . The input of the feedback signal selector is connected to the communication line, and each of the N subscriber units contains a power unit,

connected to the communication line, an impulse selector, a pulse shaper and a reference code generating unit.

A known device requires an autonomous communication line, which greatly complicates the design.

The purpose of the invention is to simplify the design by shortening the wires in the communication line.

This goal is achieved by the fact that in the device of a two-way tele-signaling device containing a central console and N subscriber units connected by a communication line, the central panel comprising a clock pulse generator, the output of which is connected to the input of the code sending unit, and

VJ 00 O O 00

b

sequentially coupled feedback signal selector and a first indication unit. The input of the feedback signal selector is connected to the communication line, and each of the N subscriber units contains a power supply unit connected to the communication line, a feedback unit also connected to the communication line, a pulse selector, a pulse generator, and a reference code generating unit . A line signal conditioning unit is introduced into the central console, the first input of which is connected to the output of the clock generator, the output is connected to the communication line, and the second input of the signal conditioning unit is connected to the second input of the feedback signal selector and the first output of the code sending unit . Its second output is connected to the second input of the first display unit, and each of the N subscriber units are connected in series; a counter, a trigger, a comparator and a second display unit, the second input of which is connected to the second output of the feedback unit, and the first input of this unit is connected to the output of the comparator. The second input of the comparator is connected to the reference code generating unit, and the input of the pulse selector is connected to the input of the communication line. The output of the pulse selector is connected to the input of the pulse former and the first input of the counter, the second input of which is connected to the third input of the second display unit, the second input of the feedback unit and the first output of the pulse former, the second output of which is connected to the second input of the trigger. .

In FIG. 1 is a structural diagram of the claimed device; in FIG. 2 - time diagrams of voltages at characteristic points of the central console and subscriber units; in FIG. 3 is a functional diagram of signal conditioning in a line; in FIG. 4 is a functional diagram of pulse shaping RECORD and RESET; in FIG. 5 is a functional diagram of a display unit of a subscriber unit; in FIG. 6 is a functional diagram of a display unit of a central console. .

The device comprises a clock pulse generator 1, a code sending generator 2, a line signal shaper 3, a feedback signal slice 4, a first indication unit 5 and N subscriber units 6, each of which contains a power supply 7, a pulse selector 8, a shaper 9 pulses, counter 10 pulses, trigger 11, digital comparator 12, driver 13 of the reference code. a second display unit 14 and a feedback unit 15:

Block 2 of the formation of the code package contains a type-setting field 16, the outputs of which are connected to the parallel inputs of the PB-consequently-parallel shear

register 17. Its parallel outputs are connected to the inputs of the (N + 1) I-NOT 18 input element, the output of which is the first output of the code sending unit 2; a pulse divider 19, the input of which is combined with the clock input of the serial-parallel shift-register 17 and is the first input of the code sending unit 2, and the output through the rewriting pulse generator 20 is connected to the write enable input of the register 17 and simultaneously. is with the second output of the code parcel forming unit 2.

As a serial-parallel register 17 can be used,. for example, a register type 564 IR 9, with extensive functionality.

The feedback unit 15 of the subscriber unit b contains a feedback key 21,

5, the input of which is connected to the output of the feedback pulse generator 22, and the output is the first output of the feedback unit 15. Moreover, the input of the driver 22 of the feedback pulses is connected to

0 the output of the element 2 OR AND NOT 24, one input of which is connected to the output of the element 2 AND NOT 23, and the other with the button 26 and the resistor 25 connected together and is the second output of the feedback block 15, the first and second the inputs of which will be the inputs of element 2 AND NOT 23.

The signal generator 3 in the line contains an element 2I 27, the inputs of which are the first and second inputs

0 of the driver 3 of the signal in the line, and the output is connected to the control input of the key 28, the information input of which will be the third input of the driver 3, and the output is simultaneously the output of the driver 3 of the signal in the line and through a diode 29 and a parametric stabilizer consisting of a resistor 30 and a zener diode 31, connected to the input of the selector 4 of the signal generator 3 in the line.

0 The pulse generator 9 of the subscriber unit 6 contains a key 32, the control input of which is connected to the clock input of the trigger 33 and is the input of the driver 9. Input Setting 0 of the trigger 33 through

5, the key 32 and the capacitor 34 are connected to the common bus, and through the resistor 35 to the output of the trigger 33, the inverse output of which is connected to the inputs of the drivers 36 and 37. The output of the driver 36 is connected to the first input of the driver 37 and is the second output the driver 9 pulses, and the output of the driver 37 - the first output of the driver 9 pulses.

The display unit 14 of the subscriber unit 6 comprises a trigger 38, a pulse counter 41, an IL AND 39 element 2, an inverter 40, a call generator 42, a call device 43, a key 44 and an LED 45. The first, second and third inputs of the display unit 14 are connected respectively with the information input of the trigger 38, the input of the inverter 40, the output of which is connected to the input of the logic element 2 OR 29, and combined with the clock input of the trigger 38 and the input of the counter 41, the input 0 of which is connected to the inverse output of the trigger 38, and the first output through the generator 42 challenge - with the call device 43 and the control input of the key 44 installed in the power supply circuit of the LED 45. In this case, the second output of the counter 41 is connected to the second input of the OR element 2 39, the output of which is connected to the setting O of the trigger 38, and the call device 43 combined and the LED 45 is connected to the fourth input of the second display unit 14.

The display unit 5 of the central console contains a trigger 46, the first and second inputs of which are the inputs of the display unit 5 of the same name, and the output is connected via a generator 47 to a call device 48 and a control input of a key 49 connected to the power supply circuit of the LED 50, the LED combined together 50 and the call device 48 are connected to the third input of the display unit 5.

The shaper (selector) 4 includes a parametric stabilizer connected to the input of block 2, the output of which is connected to one of the inputs of the 2I element, the second input of which is connected via the inverter to the first input of the shaper 4, while the output of the 2I element is the output of the shaper 4 (indicated in the drawings items are not shown conditionally).

As a shaper 9, a divider consisting of a zener diode and a resistor connected in series can be used in the device.

The principle of operation of the device is illustrated by timing diagrams.

In FIG. 2 shows the following timing diagrams:

FIG. 2, a - pulses at the output of the generator 1 clock pulses;

Fig, 2.6 - pulses at the output of the divider 19 pulses;

FIG. 2, c - pulses at the output of the shaper 20 overwrite pulses;

FIG. 2, d - pulses at the output of the generator 1 of the block 2 forming the code package; ..

FIG. 2, d-pulses at the output elements 5 2I 27 shaper 3 pulses in a line; FIG. 2, e - pulses at the output of the shaper 3 pulses in the line;

FIG. 2, g — signal at the output of the trigger 33 of the driver unit 9 pulses;

10 of FIG. 2, h - pulses at the output of the key 32 of the driver unit 9 pulses;

FIG. 2, and - pulses at the output of the generator 1 of the driver unit 9 pulses. The device operates as follows.

Clock pulses from the output of the generator 1 clock pulses (see Fig. 2, a) come in. The clock input of the serial-parallel register

0 17 and to the input of the pulse divider 19, at the output of which the pulse repetition period is set to ru x 2N + 1 (see Fig. 2.6), and then 20 rewrite pulses are input to the shaper. Through 2N-1

5 clocks at the output of the overwrite pulse generator 20, a short overwrite pulse is generated (see Fig. 2, c), according to which parallel information from the input field 16 is written in sequentially .0 parallel shift register 17. If the input field 16 is at that moment none of the buttons was pressed, all 1 inputs of the register 17 are fed logic 1, and (N + IJ-th input - logical O, with

5, the output of the (M + 1) -initial element N-NOT 18 appears logical 1. At the end of the actions of the overwrite pulse, the serial-parallel shift register 17 goes into the information shift mode and

At the next clock step, the recorded logical O is output from register 17. At the same time, a logical O appears at the output of the (M + 1) input element AND-NOT 18. Thus, a pulse of duration 1 is generated at the output of generator 1 of block 2 clock cycle 1, used as Gating for subscriber units 6. If, at the time of the overwrite pulse,

0 any of the N-buttons typed field 15, the logical O is written in the corresponding bit of the serial-pairs of allelic shift register 17 and to deduce it from the register

5, 17 (N-n) + 1 clock periods are required, where N is the total number of bits; p is the number of the pressed button. In this case, a pulse is generated at the output of the generator 1 of the block 2 forming the code packet

length (Nn) +1 periods of the clock frequency (see Fig. 2d), which is fed to the input of element 2I 27, the other input of which is connected to the output of the clock generator 1 and allows the passage of the corresponding number of clock pulses to the control input of the key 28 (see .ig. 2, d). While the switch 28 is closed, a constant voltage U is applied to the output of the pulse shaper 3 through the diode 29 and the parametric stabilizer, which is used to power the subscriber units 6.

When the key 28 is opened, voltage 21) enters the line and pulses are generated with levels from U to 2U (see Fig. 2, f).

Since the maximum number of pulses in the code packet is N + 1, and the rewrite pulses are fed to a sequentially parallel shift register 17 with a period of 2N + 1, after passing through the corresponding number of clock pulses, a sync pause of 2N + 1 duration is formed in the line .- (N + 1) ticks .. At the same time, the logical O from the output of the generator 1 of the block 2 for generating the code parcel opens the selector 4 of the feedback pulses, which selects pulses in the line with levels from U to 0, and in the presence of such a pulse feeds it to Entry Set 1 trigger 46 of the first display unit 5, which captures a logical 1 at its output, including a call generator 47 and a claw 49. The rewrite pulse from the output of block 2 of the code transmitter 3 is supplied to the setting of trigger 46, which locks to. output logic level O, shutdown INDICA- TION ... ...-.-. h .- .- ..

. The constant U voltage present in the line is fed through the input of the subscriber unit 6 to the power unit 7 and is used hereinafter to power the subscriber unit. Pulses with levels from U to 2U are emitted by driver 9 and. they are converted into logical levels used for further processing. The allocated pulses are fed to the clock input of the counter 10 and the input of the pulse shaper 9; where are fed to the control input of the key 3.2 and the clock input of the trigger-33, the input 0 of which is connected via the capacitor 34 and the key 32 to the common bus, and through the resistor 35 to the output of the trigger 33. During the pulse, the key 32 is open and the capacitor 34 is discharged to a logical O, and a logical 1 is written to trigger 33. As soon as the key 32 is closed, the capacitor 34 through the resistor 35 starts charging with logic 1 from the output of the trigger 33. Over time

delay t3ad (1,1-1,2) ru circuit, consisting of a resistor 35 and a capacitor 34 and necessary for charging the capacitor 34 to exceed the threshold logical 1 when

under the condition that there are no pulses at the input of the key 32 (see Fig. 2, g), at the inverted output of the trigger 33 the logical level 1 is set. The shaper 36 is triggered by this difference and generates at the output

0 short write pulse (see fig., 2, h). At the end of the recording pulse, the driver 37 is activated and generates a RESET pulse at its output.

The counter 10 counts the input pulses 5, and then, on the RECORD signal in the trigger 1T, the contents of the counter 10 are recorded, and by the RESET pulse, the counter 10 is reset. From the output of the trigger 11, information is supplied to the first digital input.

0 of the comparator 12, the second input of which is connected to the output of the driver 13 of the reference code, in which the code of this subscriber unit is recorded. When the received and recorded codes match at the output

5 of the digital comparator 1.2, the logical level appears, which is fed to the input of the generator 1 of the display unit 14, and through it to the information input of the resistor 35, to the clock input of which

0 RESET pulses from the driver .9. At the edges of these pulses, logic level 1 is written to trigger 38, and a logic O level appears on the inverted output inverts, allowing them to be counted.

5 ow RESET to counter 41. At the output of generator 1 of counter 41, logic 1 periodically appears, which starts generator 42, thereby forming an intermittent sound of the ringing device

0 43. As soon as logical 1 appears at the output of block 2 of counter 41, in trigger 38 by asynchronous input, setting 0 through logical element 2 OR 39 records logical O and resets counter 41.

5 If the logic O level continues to be held at the output of the digital comparator 12, then the cycle repeats.

At the time of the call, the input of the generator 1 of the feedback block 15 is given

0 is logical 1. If button 26 is pressed at this moment, during sync pause, the driver 22 will receive a trigger level logic 1 from the output of logic element 2 OR NOT 24, and the driver 22

5 will generate a feedback pulse supplied to the control input of the key 21, which for the duration of this pulse closes the line on the common bus, thereby forming a feedback pulse in the line. When button 26 is pressed, the logical O level is also supplied to the second input of the second display unit 14 and returns to its initial state.

The implementation of the device according to the proposed technical solution allows you to expand the functionality by introducing feedback for each of the N subscriber units and simplify the design of the device by reducing the number of wires in the communication line. The device is reliable and provides high-speed transmission of discrete messages, and also allows you to increase the number of subscribers without restriction.

Claims (4)

SUMMARY OF THE INVENTION 1. A two-way remote signaling device comprising a central control unit and n subscriber units connected by a communication line, the central control unit comprising a clock pulse generator, the output of which is connected to the input of the code sending unit, as well as a feedback signal selector and a first one connected in series a display unit, an input of a feedback signal selector is connected to a communication line, and each of the p subscriber units comprises a power supply unit connected to a communication line, a feedback unit; Connections to the line connection, the pulse selector, the pulse shaper and power generating towers Nogo code of m and l and w h e o f the fact that, in order to simplify by reducing the wires in communication lines, c. the central console has a signal conditioning unit, the first input of which is connected to the output of the clock generator, and the output is connected to the communication line, and the second input of the signal conditioning unit is connected to the second input of the feedback signal selector and the first output of the code transmission unit, the second output which is connected to the second input of the first display unit, a. a counter, a trigger, a comparator, and a second indication unit are introduced in series into each of the subscriber units, the second input of which is connected to the second output of the feedback unit, the first input of which is connected to the output of the comparator, the second input of which is connected to the reference code generating unit, the input the pulse selector is connected to the input of the communication line, the output of the pulse selector is connected to the input of the pulse former and the first input of the counter, the second input of which is connected to the third input of the second display unit, second the first input of the feedback unit and the first output of the pulse former, the second output of which is connected to the second input of the trigger. 2. The device according to claim 1, characterized in that the block for generating the code packet contains an N + 1-bit shift register, an N + 1-input NAND element, a frequency divider, an overwrite pulse generator, and an n-pin typesetting field 10 connected to the corresponding information inputs of the shift register, the n-th information input of which is connected to the common bus, and n + 1 outputs are svd-. register connected to 15 by the corresponding inputs of the AND-NOT element, the clock input of the shift register connected to the input of the frequency divider and being the first input of the code parcel forming unit, the output of the frequency divider through the overwrite driver is connected to the shift register enable input and it is the second output of the forming register block code parcel; the first output of which is 5 with the output of the AND-NOT element. 3. The device pop. 1, the fact that the signal conditioning unit comprises an element And, the first and second inputs of which are respectively the first 0 and the second inputs of the signal conditioning unit, and also contains a short-circuit current generator and a diode, the key control input being connected to the output of the And element, and the information output of the key being the first output of the signal forming unit, which is connected through a diode in series and the generator tb sb dyin is with its fourth input, the third input of which is connected to the information input of the key. 0 4. The device according to claim 1, with the proviso that the second display unit comprises a trigger, a counter and a key connected in series, the TM input of the trigger being connected to the second input of the counter and 5 is the third input of the second display unit, the first and second inputs of which are connected respectively to the information input of the trigger and the input of the inverter, the output of which is connected to the first input 0 OR element, the second input and output of which are connected respectively to the second output of the counter and the reset input of the trigger, and the first output of the counter through the call generator is connected to the call 5 by a unit, while the first information output of the key is connected to a light indicator, and the second information input is connected to a common bus. . | lp t ---- L mf - - PLG gee and JIF-ҐUT ... LLGLL -. League AND l KM HZDL. L j F i1 28 J wx fi. 2.3. Editor figb Compiled by N. Barykin Tehred M. Morgenthal Proofreader M. Maximishinets