SU615521A1 - Arrangement for cyclic interrogation of remotly-controlled objects - Google Patents

Description

The invention relates to the field of telemechanics and can be used in time division multiplex systems.

There are known devices for cyclic polling of telemechanic objects 1, containing a valve, to the outputs of which a trigger is connected ;, logical elements AND, OR, keys connected by polling units of objects.

A disadvantage of the known devices is the considerable time of the survey of objects, since the cycle of all objects, including those on which there is no information, is cyclically polled.

Closest to the technical entity proposed is a device for cyclically polling remote control objects 21, containing a distributor, each address output of which is connected to the first input of the first element AND of each object call channel, the outputs of the first elements AND of all channels of the object call are combined and connected to the first input of the second element AND, the output of the first element OR is connected to the second input of the second element AND, the output of which is connected to the communication channel, in each

Object call channel - key and information availability trigger.

A disadvantage of the known device is the considerable duration of the full polling cycle, which reduces the speed of the device.

The aim of the invention is to improve the speed of the device.

This is achieved by introducing RS-flip-flops into each proposed channel for calling objects and the "prohibiting element, direct R-input of the first RS-flip-flop of each object call channel connected to the output" distributor reset, direct S-inputs first and second. RS-flip-flops of each object call channel are connected to the corresponding working outputs of the distributor, in each channel of the object call, the direct output of the first RS-flip-flop is connected to the second input of the first AND element, to the first input of the second OR element and to the inverse R-input of the second RS-trigger , the inverse output of the first RS flip-flop is connected to the inverse S-input of the second R-5 flip-flop, the output of which is connected to the first input of the third element OR, the output. second element

5 OR connected to the second input of the third

the OR element of other object call channels, the output of information availability trigger is connected to the direct input of the prohibition element whose output is connected to the third input of the third OR element, the key output is connected to the inverse input of the prohibit element, KQ to the second input of the second OR element and to the inverse - In the code of the first RS flip-flop, the output of the second element OR of each object call channel is connected to the corresponding inputs of the first element OR.

The drawing shows a diagram of the proposed device.

The device contains rejib 1, information availability 2 controllers 2, first elements AND 3, second element AND 4, first element OR 5, key 6, call channels of object 7i-i, communication channel 8, first 9 and second 10 RS-triggers , the second 1 and the third 12 elements OR, the element “prohibition 13. The agility works as follows .. - //

In the initial state, i.e., in the absence of a manual call and in the absence of information at the monitored point (CP), each cycle of the distributor 1 receives a standby pulse from each control station, resulting in all the triggers 2 TC in the cocked state. From the flip-flops 2 to the inverse S-inputs of the corresponding RS-flip-flops 9, signals 1 are received that prohibit the platoon of the latter, with the result that all RS flip-flops 9 are in the droop state, since at the twelfth cycle of each operation cycle of the distributor I on their direct R-inputs from the distributor receive a reset pulse, and signals “O.” arrive at the inverse R-inputs. At the same time, the inverse outputs of the RS flip-flops 9 receive signals "1 to the inverse S-inputs of the corresponding R-S-flip-flops 10, as a result of which the latter are also in the reset state, since on the tenth cycle of each operation cycle of the distributor I a reset pulse is sent to their direct R-inputs from the distributor 1, and the signals “O” arrive at the inverse inputs. Thus, all H-TH trggers 9 and 10 are in the initial state in the reset state and the control signals on the direct outputs of the flip-flops 9 are missing.

When information appears, for example, on the second. KP, the impulses of the standby mode cease to come from it. As a result, on the address part of the work of the distributor I, flip-flop 2 is reset by the presence of niforcin in the corresponding channel of the object 7, which sends a signal "O to the inverse S-input of the R-S flip-flop 9, allowing the triggering of this trigger." On the fourteenth cycle of the first operation cycle of the distributor, trigger 9 is activated and a signal is received from its direct output.

“I to the input of the corresponding address element elegance AND 3, and through the second element OR I, the first element OR 5 -. to the input of the second element And 4, thereby allowing the transmission of pulses to call the second KP. The same signal "1 is sent through the second element OR 1 and the elements OR 12 to the inaccHhse S-codes of the R-S-flip-flops 9 of all other call nodes, impose a ban on the R-S on the PC, platooning (on the call of other CPs) before the poll of objects of their own CP. At the same time, from the outputs of the cocked trigger 9 and the inverse R input of the R-S flip-flop 10 of its own call site, the signal “1” arrives, and the inverse 8 input receives the signal “O preparing it for a platoon.

In the second cycle of operation of the distributor I from its second in the eleventh cells and two links are sent to the communication line, causing the second gearbox. In addition, an R-S-thrk 10 is outputted from a single-pulse cell at one-tenth cell, which by means of the signal "1 through the OR element 12 prohibits the re-arming of the R-S flip-flop 9 of its own call node at the next (third) distributor cycle.

At the twelve-atOM cycle of the second cycle of operation, the distributor 1 is reset by the R-Trigger 9. At the same time, the control signal “O that appears prohibits the repeated sending of the call pulses of the second control to the next (third) cycle of the distributor I, prohibits the dumping of its own RS-trngger 10 and the platoon of RS-trigger 9 call other objects.

The signal "1 with the inverse output of the R-S-flip-flop 9 imposes a ban on re-cocking your own trigger 10.

Then, on the working part of the second cycle of operation of the distributor i, the usual way is to receive information about the state of objects caused by the second gearbox.

In the third cycle of operation of the distributor, the R-S flip-flop 0 is reset by the pulse of its tenth cell, as a result of which the device returns to its output state.

Thus, the automatic call of any control center and the polling of its objects occur during the trp cycle of the operation of the distributor 1: the first a.mi, ns is concerned. There is no device preparation for the call. KP, on which information appeared (preparatory cycle), on the second cycle - call of KP and poll of its objects (survey and cessation cycle); on the third cycle, the –BOSBpamae-rcH. device is in its initial state (recovery cycle). Moreover, if by the beginning of the inquiry-call number | {la la vila number informatisch on another CP, then on the same cycle, a preparative call for another CP is called, and another CP is called on the recovery cycle of the previously called CO. objects. As a result, if there is information on several control points in each operation cycle of the distributor 1, one control block is called and polled.

When manually calling, for example, the second control unit from the key b of the corresponding object call channel, a signal is sent to the inverted input of the trigger 9. To the input of the third element OR 12, to the inverse input of the element “prohibition 13. As a result, the inverse S input of the trigger 9 goes signal "O" which is charged in the fourteenth cycle of operation of the distributor 1. Further operation of the device is similar to its work in automatic mode. At the same time, the call of the CP and the polling of its objects are performed until the key 6 of the corresponding channel of the call for the object 7i is in the call position.

Thus, the device allows to significantly reduce the maximum call delay time of the CP, at which information appeared. Thus, with respect to the telemechanical system with ten control gears and nine tele-alarm objects at each control gear, the maximum delay time compared to the prototype is reduced by about 5 times. In addition, by eliminating redundant calls to CPs, on which information is provided by the cytcTByeT, the proposed device allows for more efficient (rational) use of remote control equipment.

Claims (2)

1. USSR Author's Certificate No. 367444, class: G 08 C 19/28, 06.04.70. 2. USSR author's certificate number 436376, cl. G 08 C 15/06, 31.05.72.