SU1295369A1 - Control device for control signal transmission process in hierarchical automatic control system - Google Patents

Abstract

The invention relates to the field of automated control systems. nor, in particular, to automated systems of control of objects of different levels of hierarchy in a complex ACS. The purpose of the invention is to improve the reliability of the device. The goal is achieved by organizing an automatic control transfer process in the event that a control object leaves the next control object or control object of a lower hierarchy level according to the performance data of the specified objects arriving at each of them with tight timing. the work of the control object. 4 hp f-ly, 5 ill. iS ate with

Description

The invention relates to automated control systems, in particular to automated control systems for objects of various levels of archives in a complex ACS,

The purpose of the invention is to increase the reliability of the device.

Figure 1 presents the scheme of the proposed device; Fig 2 is the first information display unit; Fig 3 is a time signal shaper; figure 4 - selector; FIG. 5 is the second information display unit;

The device (FIG. 1) includes the first group of registers 1-3, the generator of 4 pulses, the first 5, the second 6, the third 7, the fourth 8, the fifth 9 groups of elements I, the first 10, the second II, the third 12 registers, the first 13, second 14, third 15, fourth 16, fifth 17 decoders, first 18, second 19, third 20 triggers, first 21, second 22 elements AND, first 23, second 24 elements OR, first 25, second 26 groups of elements OR , counter 27, pulse frequency divider 28, first 29, second 30 trigger groups, amplifier 31, time signal generator 32, first 33, second 34 display units formations and group of selectors 35.

The first information displaying unit 33 (FIG. 2) contains an indicator 36, a group of flip-flops 37, a group of delay elements 38, a group of elements And 39., a group of differentiating elements 40,

The shaper 32 time signals (FIG. 3) contains a group of triggers 41, a trigger 42, a first 43, a second 44 groups of elements AND, a group of counters 45, a first counter 46, a group of elements OR 47, a group of elements NOT 48, a decoder 49 and a second counter 50,

The selector 35 (FIG. 4) contains the first 51, the second 52 groups of elements I, the group of inverters 53, the group of amplifiers JJ 54. The second block 34 of the information display (FIG. 5) contains groups of flip-flops 55, groups of differentiating elements 56 , groups of delay elements 57 and indicator 58. FIGS. 1-5 denote inputs and outputs 59-122,

The operation of the device is viewed from a predetermined moment.

time, taking into account that the proposed device is equipped with all control objects of a multi-level automated control system. The operation of the control objects is strictly synchronized and by a given time point all nodes and elements of the device are set to their initial state. The reset and reset circuits of all elements and nodes are not shown in the drawings.

On the control object, the register 12 from the input 62 of the device receives the code of the number of this object. The object number code as well as the control signal can, for example, come from the control panel. The control panel is not included in the proposed device, therefore it is not shown.

The control signal in the form of a trigger pulse from the input 63 of the device enters the single input trigger 18, sets the latter to the single state, the same pulse arrives through the corresponding elements OR 26 on. the zero inputs of the trigger 20, through the corresponding elements OR 47 to the zero inputs of the triggers 41 and to the zero input of the trigger 42 of the driver 32 time signals, set these elements to their initial state.

The high potential of the trigger 18 opens the elements AND 8 groups, and the next pulse of the pulse frequency divider 28 is the contents of register 12, which is the message code OBJECT IS CONTROLLER through the group OR 25 group and amplifier 31 is output to the device 66 to the communication channels to transmit to everyone else control objects of the system. The transmitted message arrives at the device input 59 on all system management objects, and from input 59 the message is written to register 10, the code of the control object number, the ENTRY code, is decoded in the decoder 13, which is at one of its outputs corresponding to the control number an object that forms a high potential

The code of the message type (in the specified case, this message of the ONJECT type is CONTROL) is decoded in the decoder 15, at one of the outputs of which, the corresponding potential is formed, a high potential is formed. These potentials come in

It

to the corresponding inputs of the first display unit, opening the corresponding elements AND 39, by a Pulse from the divider 28 of the pulse frequency, coming through the indicated elements AND to the single inputs of the corresponding group triggers 37, the latter are set to one. The high potentials from the flip-flops 37 coming to the indicator 36 light up the transparency OBJECT NO. IS MANAGER.

A high potential pulse, which is formed at the output of the corresponding differentiating elements 40, when high potential arrives at their inputs from the outputs of the corresponding delay elements 38, which in turn receive a high potential from the outputs of the corresponding ones. the triggers 37, the latter are set to the initial state. Moreover, the delay time of the signal by elements 38 is equal to the transmission time of the message over the communication channels. A high potential at one of the outputs of the windrower 13, which is fed through the OR element 23 to the reset input of the register 10, is reset to the initial state.

The process of reporting the OBJECT NO. IS MANAGER from the control object periodically repeats with the time interval specified by the pulse frequency divider 28. In case of a decision at the high management link to transfer one or more control objects of different subsystems to the decentralized control mode this object from the corresponding inputs of the 64 groups in the registers 1 - 3, corresponding to the numbers of the specified objects, the codes of the numbers of those objects are received, which should go to the center Remote control mode.

At the same time, from the inputs 65 of the device group corresponding to the numbers of these objects, high-potential impulses are sent to the single inputs of the corresponding triggers 29 of the group, establishing the latter in single states. High potentials from the flip-flops of the 29th group arrive at the single inputs of the corresponding triggers of the 41st groups of the device 32 .-- (time generator. 10

15

2953694

signals), set them in one state.

The control signal on the control object from the device input 61 is fed to the single input of the trigger 19, setting the latter to one, the state. The high potential of the trigger 19 opens element 21, allowing the arrival of pulses from the generator 4 of pulses to the counting input of counter 27. With the arrival of each pulse of generator 4 to the counter 27, a certain code combination is generated at the output of the latter, the defined code combination on the input of the decoder corresponds to a high potential at one of its inputs. A pulse frequency divider 28 divides the frequency of the pulses of the generator 4 in such a way that the frequency of the formation of pulses at its output is equal to the frequency of the formation of a high potential at each of the outputs of the decipher 14,

Let a high potential be formed at one of the outputs of the decoder 14. This potential opens the group of elements AND 5-7, respectively, and the contents of the corresponding register 1-3, which is the message code for the OBJECTIVE TAKE CONTROL, through the elements OR 25 35 of the group and the amplifier 31 is output system output 66 to communication channels for transmission to control objects.

20

25

thirty

A high potential, formed 40 at the last output of the decoder 14, is fed to the reset input of the counter 27, the zero input of the trigger 19, the zero input of the flip-flops 29, to the reset inputs of the registers 1-3,

45 poured these elements into their original state.

The transmitted message at each control object is fed to the input 59 of the device and is recorded in

5Q. Register 10, Deciphering the code of the object number to which the control is transferred, and the code of the message type to the OBJECT NO. TAKING THE MANAGEMENT, its indication on the indicator 36 occurs in a similar way as in the case of

receiving a message of the type OBJECT NO. IS MANAGER.

The control objects that received messages — an order to switch to the decentralized control mode — begin broadcasting to the communication channels the message of the type OBJECT NO. IS MANAGER to the address of the control object of the highest management level and its subordinate objects.

To control the operation of objects that control in a decentralized mode, the control object of the highest management level checks the receipt of a message of the type OBJECT NO. IS CONTROL from the specified objects in each cycle.

Such control is carried out as follows.

Upon receipt of this type of message from the input 59 into the register 10, a high potential formed on the corresponding message type by the output of the decryptor 15 opens a group of elements AND 9 through which the object number code contained in the code of this message comes from the outputs of the register 10 to the decoder 16j on one of the outputs of which forms a high potential, which is fed to the single input of the corresponding trigger 30 of the group, sets it to the single state, and to the corresponding element NOT 48 and element AND 44 of the group forming l 32 time signals. The pulses from the generator 4 are fed to the counting input of the counter 50, the output of which forms a certain code combination, with the arrival of which a high potential is generated at the corresponding output of the last output to the resetter 49 through the corresponding element AND 44 to the reset input of the corresponding group counter 45. This process is periodically repeated in each arrival cycle of a message of the type OBJECT NO. IS MANAGER.

If in the event of an unexpected (unforeseen) outage of a controlling decentralized object (s) from it does not arrive at the management object of the highest management level, the message of the object OBJECT NO. Is MANAGING, then this fact will be fixed in decider 16 in one of the its outputs, corresponding to the number of the object that has left the line, will form a zero potential; the latter, having arrived at the corresponding input of the time signal generator group, will be inverted by the corresponding element NOT 48.

A high potential from the element output does NOT flow to the corresponding element AND 43, opening the last one through one of the inputs. The high potential formed in this cycle on

corresponding to the output of the decoder 49, through the specified element And enters the counting input of the corresponding counter 45 of the group. If, for example, for three cycles in a register

10 the code of the object controlling the decentralized mode does not arrive (this verifies the fact of accidental failure in the operation of this object), then the next pulse from the corresponding output of the decoder 49 goes through the through transfer chain to the output of the corresponding counter 45.

The register 12 on each control object stores information about the readiness of the corresponding objects for operation, which pestup into it from the input 60 of the device.

Suppose in the first order (leftmost) and subsequent bits are stored units, indicating that the respective objects are ready to take control. In this case, the high potential of the first bit of register 12 opens the corresponding AND element 5 of the corresponding selector 35 and, after inverting by the corresponding inverter 53, closes the corresponding AND element 52 through one of the inputs. Then im

The through transfer pulse from the corresponding output of the imaging unit 32 time signals through the element And 52 of the corresponding selector 35 moves to the single input of the corresponding trigger 55 of the second display unit, set to one state. The high potential of the specified trigger lights on the indicator 58 a banner OBJECT №

50 TAKE MANAGEMENT.

If the first bit of register 11 is zero, which indicates a malfunction (exit from the system) of the corresponding object, then element 51 will be closed by a low potential, and corresponding element AND 52 will be opened by a high potential of the corresponding inverter 53. In this case, the through transfer pulse from the output of the corresponding counter 45 of the time signal generator, enters the corresponding amplifier 54 of the corresponding selector 35. From the output of the amplifier 54, an amplified pulse in the presence of a unit in the next discharge the register is fed to the single input of the corresponding trigger 55 of the second information display unit, setting it to one.

The light on the indicator 58 of the number of the corresponding object is an order of the OBJECT NO. TAKE MANAGEMENT. On this signal, the object, whose number is lit on the indicator 58, begins to issue a message of the type OBJECT NO. IS MANAGER to the communication channels, having taken control in the decentralized mode. In this case, the operation of the device is similar.

The number of selectors 35, elements of the second information display unit 34, and time generator 32 of register bits 12 entered into the device depends on whether or not the top management level objects and control objects of different subsystems. One chain of the specified elements of the device provides monitoring of the performance of these objects and their appointment as controllers. In the case of a decision to transfer the entire system to a fully decentralized mode, the control object of the OVC, received from all objects of the subsystem that control decentralized, the message of the OBJECT NO. IS MANAGEMENT mode, ceases to monitor the health of the objects, stopping the translation into channels zi messages of the specified type. Automatically this happens as follows.

From the outputs of the decoder 16, which correspond to the numbers of the control objects of the subsystems, the high potential pulses arrive at the single inputs of the corresponding soft trigger 30, setting the latter into one state. After that, as all the triggers 30 are transferred to the unit state, a high potential is generated at the output of the element 22 and is fed through the element of the IPI 24 to zero

and 1295369 8

the trigger input 18, the transfer of the latter to its original state, which prohibits the issuance of the contents of the register 12 to the communication channels.

The control of the operability of the objects controlling the decentralized is performed on the control object of the highest level of the hierarchy in a manner similar to the indicated operation of the device.

device operation

In the case of a message, OBJECT NO. Is the control object of the same hierarchy level but higher in rank than the object controlling this moment in time of the hierarchy, the latter must go from the control mode to the standby by ceasing control of the system (subsystem) objects. At the same time, the code of the message received from the highest-ranking object from the device input 59 to register 10 is decoded by the decoder 17, at the output of which a high potential is excited coming through the OR element 24 to the zero input of the trigger 18, setting the latter to the initial state and , thereby prohibiting the issuance of the contents of the register 12 to the communication channels. The same potential sets the triggers 41 of the time signal generator to the zero state, monitoring the performance of the subordinate volumes stops. The same potential arrives at the single input of the trigger 42, sets it to the single state, to the corresponding element AND 44 and the element NOT 48 of the time signal generator. Thereby, the control is carried out using the counter 46, the corresponding elements AND 43, the selector 35 and the second information display unit 34 for the operability of the control object of the highest management level currently in control, similarly to the indicated

/ j device operation

55

Thus, the introduction of new elements, nodes and blocks into the proposed device allows the transfer of control to geographically distributed objects of a multilevel (hierarchical) automated control system in both centralized and decentralized control modes.

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Claims (5)

1, A device for controlling the transmission of control signals in a hierarchical automated control system containing a group of registers, the first, second, third and fourth groups of AND elements, the first group of triggers, the first trigger, the first, second and third registers, the first OR element, the first. the decoder, the first information display unit, the time signal generator and the pulse generator, the information inputs of the group registers are a group of information inputs of the device, and the outputs are connected to the first input And the first, second and third groups of elements, the second inputs of which are connected to the direct outputs of the first group of flip-flops, whose installation inputs are a group of device installation inputs, the first and second register inputs are the first and second information inputs of the device, respectively, the inputs of the first decoder connected to one output of the first register, and outputs to the installation inputs of the first group of the first information display unit and to the inputs of the first OR element whose output is connected to the reset input ne In the first register, the input of the third register is the third information input of the device, and the outputs are connected to the first inputs of the elements AND the fourth group whose second inputs are connected to the direct output of the first trigger, the installation input of which is the first control input of the device the signals are connected to the output of the pulse generator, and the control inputs of the first group are connected to the direct outputs of the triggers of the first group, the inputs of the OR elements of the first group are connected to the outputs of the element Both the first, second, third and fourth groups, and the outputs to the inputs of the amplifier, the output of which is the information output of the device, characterized in that, in order to increase the reliability of the device, the second and third triggers are entered into it, the counter, the second, third, quarter and five descramblers, selector group, frequency divider ten S 0 the fifth group of elements AND, the second element OR, the first and second elements AND, the second group of triggers, the second group of elements OR, and the second information display unit, the installation input of the second trigger is the second control input of the device, and the direct output is connected to the first input The first element And, the second input of which is connected to the input of the frequency divider and to the output of the pulse generator, and the output to the counting input of the counter, the output of which is connected to the input of the second decoder connected to the outputs, except the last, to the third input And the first, second and third groups of elements, respectively, the last output of the second decoder is connected to the reset inputs of the second trigger, counter, triggers of the first group and registers of the first group, the third decoder is connected to the other inputs of the first register, and the outputs to the installation  the inputs of the second group of the first display unit, the synchronization input of which is connected to the output of the frequency splitter, the reset inputs and the settings of the third trigger are connected respectively to the first and second control inputs of the device, and the output is connected to the first inputs of the elements of the fifth group, the second inputs of which are connected with one of the outputs of the first register, the third inputs with one output of the third decoder, and the outputs with the inputs of the fourth decoder, outputs connected to, the inputs of the second trigger Group 0 and to the control inputs of the second group of the time signal generator, the second synchronization input of which is connected to the output of the frequency divider, the inputs of the fifth decoder 5 is connected to the outputs of the first register, and the output is connected to the first control input of the time signal generator, the second control input of which is connected to the first control 0, the device input, and the control outputs are connected to the control inputs of the corresponding group selectors, whose information inputs are connected to the outputs of the second register, a. 5 control outputs - with the installation inputs of the second information display unit, the first and second inputs of the OR elements of the second group are connected respectively to the output of the second And the first control input of the device, and the outputs with the reset inputs of the second group of triggers whose outputs are connected to the inputs of the second AND element, the output connected to the first input of the second OR element, the second input of which is connected to the output of the fifth decoder, and the output to the reset input of the first trigger. 2. The device according to claim 1, of which the first block of displaying information contains a group of elements AND, a group of flip-flops, an indicator, a group of delay elements, a group of differentiating elements, the first inputs of the elements AND of a group are respectively installation inputs the first and second groups of the block, respectively, the second - by the synchronization input of the block, and the outputs are connected to the installation inputs of the group triggers, direct outputs connected to the indicator inputs and group delay elements, the outputs of which are connected to the differential inputs Grouping elements, outputs connected to the reset inputs of group triggers. 3. The device according to Claim 1, which means that the time signal generator contains a group of triggers, a trigger, a decoder, the first and second counters, a group of counters, a group of elements 1E, the first and second groups of elements AND, and a group of elements OR , the counting input of the first counter is the first synchronization input of the former, and the outputs are connected to the inputs of the decoder connected by the outputs to the first inputs of the corresponding elements AND of the first group, the second inputs of which are connected to the direct outputs of the trigger group, the installation inputs which are the control inputs of the first group of the former, and the reset inputs are connected to the outputs of the OR elements, the inputs of which are the first and second control inputs of the former, respectively, the inputs of the corresponding elements of the NOT group are the control inputs of the second group of the former, and the outputs connected to the third inputs of the corresponding elements And the first group, the outputs connected to the counting inputs of the counters of the group, the reset inputs of which are connected to the outputs of the corresponding 15 20 25 of the second group, the first inputs of which are connected to the outputs of the decoder, and the second inputs are connected to the corresponding control inputs of the second group of the driver, the inputs of installation and reset of the trigger are connected respectively to the first and second control inputs of the driver, and the output O with the first input one element AND of the first group, the second input of which is connected to the second synchronization input of the imaging unit, the third - with the output of one element of the NOT group, the input connected to the first control input of the forms the solver, and the output is connected to the counting input of the second counter, the fault input of which is connected to the output of one element AND of the second group, the first and second inputs of which are connected respectively to the second synchronization input and the first control input of the driver, respectively, the outputs of the group counters and the second counter are a group of control outputs of the driver. 4. The device according to claim 1, characterized in that each of the group selectors contains the first and second groups of elements AND, the group of elements NOT and the group of amplifiers, the outputs of elements AND of the first group 35 are the control outputs of the selector group, and the first inputs are the information inputs of the selector group, the inputs of the NOT elements of the group are connected to the information inputs of the selector groups, the first inputs of the AND elements of the second group are connected to the outputs of the corresponding HE elements, the inputs of the amplifiers of the group are connected to the outputs the corresponding elements 45 of the second group, and the outputs with the inputs of the corresponding elements of the first and second groups, the outputs of one elements of the first and second groups are connected to the control input 50 selector, the output of another element And the second group is one of the control outputs of the group selector. thirty 5. The device according to Claim 1, p l and 55 information display unit contains a group of triggers, an indicator, a group of delay elements, a group of differentiating elements, installation inputs 1 3129536914 The flip-flops are the setup inputs of the connectors of the display unit connected to the inputs, and the direct inputs are connected to the inputs of the display elements, the outputs of which are connected to the reset inputs of the group triggers. ra and elements of the delay group, you / gjtyff / Mr g / gxodoS g  iSxoffoo moves connected to the inputs of the raiding elements whose outputs are connected to the reset inputs of group triggers. 4Sx. 61 Output 2Sx. 60 36  HgJHP W | 57 | And 03 Group gohob Figure 2. iSxoH 97 -Oolf / w / T e / 7k 11НПУДЬС9 ( and 1-f group of inputs FigZ GRU t S9-tOi SKK input. about t-106 6 lak31 Phage iSmS  srtsppy ftlsndoS Ёoyhodoo  /20 оce / fJS Editor I. Shulla Compiled by You, Dlarin Tehred L. Serdyukova Order 617/54 Edition 864 Subscription VNIIPI USSR State Committee for inventions and discoveries. 113035, Moscow, F-35, Raushsk nab. D. 4/5 Production and printing company, Uzhgorod, st. Design, A Proofreader M. Demchik