RU2156493C1 - Automatic quality control system - Google Patents

Abstract

FIELD: instrumentation engineering. SUBSTANCE: system used for automatic troubleshooting and incorporating programming device, numeric monitoring and control unit, stimulating signal and command shaping unit, two switches, set of measuring transducers, data display unit, and data output unit is provided, in addition, with three memory units and two comparison units. EFFECT: enlarged functional capabilities and reduced automatic control time. 1 dwg

Description

 The present invention relates to the field of instrumentation and can be used to create automated control systems for various objects.

 A device for monitoring parameters (the functioning of complex technical objects according to the copyright certificate N 690448 G 05 V 23/02, SU, G 06 F 15/46, SU, containing a series-connected program block, command decoder, synchronization block, random access memory block switch, display unit, shaper of standards, measurement unit, serial switching unit, control panel, monitoring object, evaluation unit, control results analyzer, registration unit, parameter sensors.

 Its disadvantages include limited functionality for self-monitoring of the device and the search for failed nodes of the device.

 There is also known a device for monitoring parameters according to copyright certificate N 1275472 G 06 F 15/46, SU, comprising a master switch, a polling switch, an analog-to-digital converter, a unit for calculating deviations and parameter estimates, a block for outputting a control result, a block of stimulating signals, a program block , signal switch.

 Its disadvantages include limited functionality for self-monitoring the device and troubleshooting the device.

 The closest in technical essence is an automated control system for a. with. 792224 G 05 V 23/02, SU, G 06 F 15/46, SU. This system contains a programming device, a program control and monitoring unit, a first switch, a second switch, a stimulating signal and command shaper, recognition and comparison units containing measuring transducers of electrical signal parameters and signal comparison devices, an analysis unit, an information display unit, a self-monitoring unit.

 The system operates as follows.

 Through the programming device, a control object (OK) control program is entered into the program control and control unit, in accordance with which control units of the control system are controlled: switches, stimulating signal and command shaper, recognition and comparison units, analysis (evaluation) unit and information display unit , from the driver of stimulating signals and commands through the first switch to the OK, stimulating signals are supplied in accordance with the entered program, controlled signals from OK ithout second switch comes in recognition and comparison unit. Based on the comparison results, the analysis unit evaluates the signals for compliance with the norm and the display unit records the results of the control.

 Self-control of the system is carried out using the self-control unit, which is connected instead of the control object and provides a check of its functioning with the working logic of the object.

 The disadvantages of this system are the high complexity of the self-monitoring unit due to the need to ensure the working logic of the object, the long self-monitoring time due to the verification of the entire system and the limited ability to search for malfunctions in the system, since in this case the failures are determined accurate to the paths for generating stimulating signals and measurement of controlled signals. As a result, detailed information on troubleshooting is missing and troubleshooting in the system is carried out manually and takes a long time. Especially these disadvantages are manifested for complex control systems.

 To expand the capabilities of automatic troubleshooting in the control equipment and reduce the time of self-control, the proposed automated control system containing a programming device is connected via an output to the first input of the program control and monitoring unit, a block of stimulating signal and command drivers, an input connected to the first output of the program control unit and control, and the output - with the signal input of the first switch, the signal output connected to the input of the control object, and the control input to the second output of the program control and control unit, the second input connected to the output of the unit, measuring transducers, the input connected to the signal output of the second switch, the signal input connected to the output of the control object, and the control input to the second output of the unit software control and monitoring, the third and fourth outputs connected respectively to the information display unit and the information output unit, characterized in that the first, second th and third memory blocks, the first and second comparison blocks, the first memory block being connected to the fifth output of the program control and monitoring block by an input and the output to the first input of the first comparison block, the second input connected to the output of the second memory block, and the output to the first the input of the second comparison unit, the second input connected to the output of the third memory unit, and the output to the third input of the program control and monitoring unit.

 The drawing shows a structural diagram of the system.

The drawing shows:
1 - block program management and control,
2 - programming device
3 - block display information
4 - block output information
5 - block shapers stimulating signals and commands,
6 - block measuring transducers,
7 - the first switch
8 - the second switch,
9 - object of control,
10 - the first block of memory,
11 - the second memory block,
12 - the first unit of comparison,
13 - the third block of memory,
14 - second block comparison
The system comprises a program control and monitoring unit 1, a programming device 2, an information display unit 3, an information output unit 4, a stimulating signal and command shaper unit 5, a measuring transducer block 6, a first switch 7, a second switch 8, a monitoring object 9, a first block memory 10, a second memory unit 11, a first comparison unit 12, a third memory unit 13, a second comparison unit 14.

 The system operates as follows.

 In accordance with the control program implemented by the program control and monitoring unit 1 through the block of stimulating signal and command generators 5 and the first switch 7, stimulating signals and commands are sent to OK 9, and controlled signals are received from OK, which are transmitted through the second switch 8, measuring transducers 6 are fed to the program control and monitoring unit 1. In the program control and monitoring unit 1, the measurement result is compared with the permissible values of the monitored parameter and the value and sign of the deviation of this parameter from the tolerance limits are distributed and an estimate of the parameter YEAR-FREE, YEAR-OUT is produced.

 If, at the end of the OK control, there are parameters that have received a rating that is NOT SUITABLE, then the OK control is repeated. If in the process of repeated control the estimates are NOT SUITABLE, then OK is recognized as serviceable. Upon receipt of the assessment, the parameters are NOT SUITABLE, in at least one case of repeated control, a decision on the assessment of OK as a whole is not taken.

 The list of parameter numbers that have been rated NOT GOOD is stored in the first memory block 10. Information and the numbers of failed parameters from the first memory block 10 are transmitted to the first comparison block 12, which receives information from the second memory block 11, containing a list of paths for each parameter OK and nodes of control equipment (table of correspondence parameter OK - paths and nodes of equipment). The first comparison unit generates a list of paths and hardware nodes for each failed OK parameter and transmits this information to the second comparison block 14, which receives information from the third memory block 13, containing a list of OK parameter numbers for each path and hardware node (node matching table ( tract) equipment - parameters OK). The second comparison unit 14 from the list of paths and nodes formed by the first comparison unit according to the table of correspondence the node (path) of the equipment - OK parameters determines the list of nodes and paths of the control equipment involved in the control of failed parameters, and transmits this data to the program control and control unit, which implements self-monitoring of the allocated nodes and paths of the equipment. If during self-monitoring the equipment is found to be working, then OK is considered to be faulty. If the self-monitoring of the selected nodes and paths results in an NOT SUIT score, the OK test results are considered invalid, and the control equipment is recognized as malfunctioning. Information about the found failed nodes and paths of the equipment is recorded in the display unit 3 and the information output unit 4.

 Thus, the introduction of new elements and connections can dramatically reduce the time of self-monitoring by checking not all the equipment, but only dedicated devices and provide the ability to automatically search for malfunctions in the monitoring equipment, which greatly simplifies the use of monitoring equipment and increases the monitoring performance.

Claims (1)

 An automated control system containing a programming device connected to the first input of the program control and monitoring unit by an output, a stimulating signal and command shaper unit, connected to the first output of the program control and control unit by an output, and the signal input of the first switch connected to the signal output the input of the control object, and the control input to the second output of the program control and monitoring unit, the second input connected to the output of the measuring unit educators, the input connected to the signal output of the second switch, the signal input connected to the output of the control object, and the control input to the second output of the program control and monitoring unit, the third and fourth outputs connected respectively to the information display unit and the information output unit, characterized in that the first, second and third memory blocks, the first and second comparison blocks are introduced into it, the first memory block being connected to the fifth output of the program control and monitoring unit by an input and the output to the first input of the first comparison unit, the second input connected to the output of the second memory unit, and the output to the first input of the second comparison unit, the second input connected to the output of the third memory unit, and the output to the third input of the program control and monitoring unit .