RU2248028C1 - Automated monitoring system - Google Patents

Abstract

FIELD: measuring and monitoring technique, possibly monitoring of different objects.

SUBSTANCE: system includes control unit, unit for calling testing programs, coupling unit, measuring unit, test stimulation unit, power sources, unit for distributing signals, memory unit, N matching units, N testing program units. Each testing-program unit has evaluation circuit and two memory devices.

EFFECT: lowered volume of equipment, simplified organization of monitoring process and development of software.

1 dwg

Description

The invention relates to the field of instrumentation and can be used to control various objects.

A known system of centralized control of electronic products according to copyright certificate No. 744481 G 05 23/02, G 06 F 15/46, SU, containing a Central control device, a memory device, an information processing device and a control stand in each control channel. The system also contains a controlled product, and each control stand consists of a buffer register, a signal shaper, an input signal analyzer, the first and second switches and a control unit. In addition, the system contains a third switch, an input register and an input unit, and each control stand contains a dynamic test unit, a product counter, a register of a failed product number, an input code control unit, an AND element, an OR element, and a control device, a memory device, and a device information processing and input unit are part of the computer.

Its disadvantages include great complexity due to the implementation of control channels by individual control stands.

The closest in technical essence to the proposed system is a system for automatic control of electronic circuit parameters according to copyright certificate No. 985764, G 05 В 23/02, SU. This system contains a control computer, measuring stations with work stations. Each measuring station contains a switch of work stations, a register of work stations, a switch terminal, a register of test combinations, a power supply unit, a measuring unit, a first OR element, a ready register, a second OR element, a valve block, an address decoder, an analysis unit, a reversible counter, registers upper and lower values.

A control computer (COMPUTER) performs a sequential software scan of the readiness of each measuring station, determining the first workstation ready to work in this measuring station. Having determined the post, which is ready for operation, the control computer issues the first test pattern to the station about the value of the stimulating signal, and the pin number to which the measuring unit is connected is entered into the pin switch through the register of test combinations. After the start signal, the measuring unit, after the time interval necessary for the measurement, gives the code of the measured parameter to the analysis unit. The analysis unit assesses whether the measured value is acceptable and provides information to the control computer. Thus, the monitoring objects are monitored at work stations and for different measuring stations, which provide verification of controlled objects by the means included in them.

The disadvantage of this system is the large amount of equipment due to the duplication of devices in measuring stations designed to perform the same functions, and the high complexity of organizing software for monitoring, due to the separation of control functions between the host computer and the measuring stations. These disadvantages are especially evident for complex controlled products, which are characterized by a large volume of stimulating and controlled signals, supply voltages, and a large volume of control programs.

In this case, the volume of repetitive equipment in different measuring stations becomes unacceptably large. At the same time, the performance of modern computers allows you to not set the task of saving the volume of their functions and the implementation of increased performance due to the equipment of measuring stations. In addition, for complex controlled products, the speed of the control process is determined by transients in the products, and not by the speed of the means (including computers) of the control system. Also, the need for simultaneous control of several complex controlled products, as a rule, is absent.

When dividing the monitoring functions between the measuring stations and the host computer, the software is implemented both in the metering stations and in the host computer, which are incompatible from the point of view of programming. As a result, software development and change are complex and time consuming. The ability to use a high-level programming language is practically difficult to implement.

To reduce the amount of equipment, simplify the organization of the control process, simplify the development of software and increase its mobility, the proposed automated control system containing control objects, a control unit, the first input and output of which are connected respectively to the output and input of the first memory unit, and the second input and output - respectively, to the first output and input of the interface unit, the second input and output of which are connected respectively to the control outputs and inputs of the power supply unit, unit test actions, the measuring unit and the switch input and output signals, and the signal outputs of the power supply unit and the test action unit are connected to the first and second signal inputs of the input and output signal switch, the first signal output of which is connected to the signal input of the measuring unit, characterized in that N matching blocks, a signal distribution block, N control program blocks, each of which contains an evaluation block, a second and third memory blocks, and a call block n control program, the input and output connected respectively to the third output and the input of the control unit, which (i + 3) -m (where i is the number of the block of control programs and, accordingly, the control object) inputs and outputs are connected respectively to the outputs and inputs of the second memory blocks, a (i + 4) -th inputs and outputs, respectively, to the first outputs and inputs of the evaluation units, the second inputs and outputs of which are connected respectively to the outputs and inputs of the third memory blocks, and the signal distribution unit is connected by the first, second inputs and the first output n, respectively, to the second, third signal outputs and the third signal input of the input and output signal switch, and (i + 1) -th outputs and (i + 2) -th inputs, respectively, to the first inputs and outputs of matching blocks, the second inputs and outputs of which connected respectively to the outputs and inputs of the objects of control.

The drawing shows a structural diagram of a system where

1 - control unit;

2 - the first block of memory;

3 - block call control programs;

4 - blocks of control programs;

5 - interface unit;

6 - power supply unit;

7 - block test effects;

8 - measuring unit;

9 - switch input and output signals;

10 - block distribution of signals;

11 - matching blocks;

12 - objects of control;

13 - evaluation units;

14 - second blocks of memory;

15 - third memory blocks.

The system comprises a control unit 1, a first memory unit 2, a call block for control programs 3, blocks for control programs 4, a pairing unit 5, a block of power supplies 6, a block of test actions 7, a measuring unit 8, a switch for input and output signals 9, a signal distribution unit 10, matching blocks 11, objects of control 12.

Each of the blocks of control programs 4 contains an evaluation unit 13, a second memory unit 14 and a third memory unit 15.

The coordination blocks 11 provide the connection of specific monitoring objects 12 (OK) to the signal distribution block 10 and contain adapters, loads, matching elements, cables.

The composition of the block of power supplies 6, the block of test actions 7 and the measuring block 8 includes the totality of tools necessary to control all OK. This takes into account the need for the same tools included in the listed blocks for different OKs, i.e. most of the funds are shared and used to control different OKs.

The composition of the funds included in the blocks is determined by the optimal synthesis method according to the criterion of the minimum cost of the control system while ensuring the necessary indicators of the control reliability system and speed.

The system operates as follows.

OK 12, using the matching block 11, is connected to the signal distribution block 10. Using the control program call block 3, the control program corresponding to the connected OK is set and from the second memory block 14 is entered through the control unit 1 into the first memory block 2. After starting the program, the control unit 1 through the interface unit 5, in accordance with the control program for this OK, it transfers the necessary control data to the power supply unit 6, the test action unit 7, the measuring unit 8, the input and output signal switch 9. The block of power supplies 6 and the block of test actions 7, according to the control data supplied to them, form the necessary supply voltages and test actions, respectively, which through the switch of input and output signals 9 in accordance with the control data received at it, go to the block signal distribution 10.

The signal distribution unit 10 groups the input and output signals 9 received from the switch 9 and the signals of the power supply unit 6 and the test action unit 7 to the outputs for supply through the connected matching unit 11 to the control object 12.

Controlled signals from the monitoring object 12 through the matching unit 11 are fed to the inputs of the signal distribution unit 10, which groups them at the outputs for supplying input and output signals 9 to the measuring unit 8 through the switch, which provides the conversion of the input signal parameters into code. The results of the conversion of the parameters from the measuring unit 8 are fed through the interface unit 5 and the control unit 1 to the evaluation unit 13 of the control program unit 4. In the evaluation unit 13, the results of the conversion of the parameters to find them within the tolerance are evaluated and the size and sign of the deviation of the parameters from the tolerance limits are determined and an estimate of the parameter is developed - YES, NOT YES. The parameter estimate is stored in the third memory block 15.

During the system operation, all OK parameters are monitored, based on the results of which the evaluation unit 13 gives a generalized assessment of the OK state as a whole, which is transmitted to the control unit 1 and stored in the first memory unit 2.

Similarly, all other OKs are monitored.

The introduction of control program blocks containing second memory blocks, evaluation blocks, third memory blocks, a signal distribution block, matching blocks, and a call block for control programs can drastically reduce the volume of a control system during sequential OK monitoring by eliminating duplication of identical equipment in measuring stations that perform the same functions for OK. Moreover, for complex OKs of one type, the reduction in excess equipment will be a significant amount.

The exclusion of the simultaneous operation of the measuring stations and the implementation of the control logic, parameter estimation and OK assessment as a whole in the blocks of control programs when implemented on modern high-speed computers will practically not lead to an increase in the monitoring time.

In addition, the implementation of control programs on a central control computer allows you to simplify the provision of the necessary capabilities to control the control process and use advanced software based on a high-level programming language.

Claims (1)

An automated control system containing control objects, a control unit, the first input and output of which are connected respectively to the output and input of the first memory unit, and the second input and output, respectively, to the first output and input of the interface unit, the second input and output of which are connected respectively to the control the outputs and inputs of the block of power supplies, the block of test actions, the measuring block and the switch input and output signals, and the signal outputs of the block of power supplies and the block of test actions connected to the first and second signal inputs of the input and output signal switch, the first signal output of which is connected to the signal input of the measuring unit, characterized in that N matching blocks, a signal distribution block, N control program blocks, each of which contains an evaluation unit, are input into it , the second and third memory blocks, and the control program call block, the input and output connected respectively to the third output and input of the control unit, which is (i + 3) -mi (where i is the number of the control program block and, respectively of the control object) with inputs and outputs, respectively, connected to the outputs and inputs of the second memory blocks, and (i + 4) -th inputs and outputs, respectively, to the first outputs and inputs of the evaluation units, the second inputs and outputs of which are connected respectively to the outputs and inputs of the third memory blocks, and the signal distribution block of the first, second inputs and the first output is connected respectively to the second, third signal outputs and the third signal input of the input and output signal switch, and (i + 1) -th outputs and (i + 2) -th inputs - respectively etstvenno to first inputs and outputs block matching, and outputs the second inputs of which are connected respectively to the outputs and inputs of control objects.