CN105759779A - Real time performance detecting system for industrial control system - Google Patents
Real time performance detecting system for industrial control system Download PDFInfo
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- CN105759779A CN105759779A CN201410796136.8A CN201410796136A CN105759779A CN 105759779 A CN105759779 A CN 105759779A CN 201410796136 A CN201410796136 A CN 201410796136A CN 105759779 A CN105759779 A CN 105759779A
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- 238000001514 detection method Methods 0.000 claims abstract description 36
- 239000000523 sample Substances 0.000 claims abstract description 34
- 238000004891 communication Methods 0.000 claims abstract description 11
- 238000002372 labelling Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000004886 process control Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012369 In process control Methods 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010965 in-process control Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The invention relates to a field of industrial control systems and especially relates to a real time performance detecting system for an industrial control system. The system includes data measuring probes used for measuring measurement value data transmitted by a transmitter in the industrial control system and the time when an actuator receives controller output data and marking the measured time in the data; a special communication network used for connecting the probes and a detection computer and transmitting the measurement value with the time mark or the controller output data to the detection computer; the detection computer used for receiving the measurement value with the time mark or the controller output data, calculating delay time according a predetermined detection range or specific process control circuit, obtaining a real time performance result of the industrial control system according to the delay time and outputting the real time performance result; and precise timing system used for performing time synchronization on the data measuring probes through a special communication network regularly.
Description
Technical field
The present invention relates to industrial control system field, particularly relate to a kind of detection instantaneity of industrial control system detection system.
Background technology
The exigent real-time of industrial control system, for process control loop, the decline of real-time can cause in process control loop more serious delayed, normal process control is damaged, for instance cause serious overshoot, vibration etc..For DCS(dcs), owing to there is the time loss links such as A/D conversion, DA conversion, software control algorithm execution, it is possible to have influence on real-time；For FCS(field bus control system), owing to there is also fieldbus data transmission delay, the impact for real-time is very important especially.Detection instantaneity of industrial control system, the real-time particularly detecting industrial control network (including EPA, fieldbus etc.) is detection industrial control system quality and abnormal important means.
Summary of the invention
The present invention provides a kind of system and method detecting instantaneity of industrial control system, it is possible to specify industrial control system particular range, or particular procedure controls loop and carries out the measurement of time delay and real-time, it is possible to effectively assess the quality of industrial control system.
A kind of instantaneity of industrial control system detection system, including: DATA REASONING is popped one's head in, for measuring the measured value data that transmitter in industrial control system sends out, and executor receives the time of controller output data, and is tagged in data the time measured；Dedicated communications network, is used for connecting each probe and detection computer, the data that the measured value data with free labelling or controller export is sent to detection computer；Detection computer, for receiving measured value data with free labelling or the data of controller output, and control the loop computing relay time according to detection range set in advance or particular procedure, according to drawing instantaneity of industrial control system result time delay, and export real-time result；Precision time service system, for carrying out time synchronized by dedicated communications network timing to data measuring probe.
In described instantaneity of industrial control system detection system, described DATA REASONING probe includes at least two, and described DATA REASONING probe is arranged on field instrument, or by described DATA REASONING probe as far as possible close to the probe of field instrument.
In described instantaneity of industrial control system detection system, described precision time service system also includes: time service server and real-time clock, and described real-time clock is arranged on DATA REASONING probe, precision time service system to the timing tracking accuracy of each probe less than 1ms.
Beneficial effects of the present invention: a kind of instantaneity of industrial control system detection system is provided, including: DATA REASONING probe, dedicated communications network, detection computer, precision time service system form, the measured value data that in industrial control system, transmitter sends out can be measured, and executor receives the time of controller output data, and calculate its delay time and obtain system real time.
Accompanying drawing explanation
In order to be illustrated more clearly that the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the system construction drawing of detection instantaneity of industrial control system.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the technical scheme in the embodiment of the present invention, and it is understandable to enable the above-mentioned purpose of the present invention, feature and advantage to become apparent from, and below in conjunction with accompanying drawing, technical scheme in the present invention is described in further detail.
The present invention provides a kind of system and method detecting instantaneity of industrial control system, it is possible to specify industrial control system particular range, or particular procedure controls loop and carries out the measurement of time delay and real-time, it is possible to effectively assess the quality of industrial control system.
A kind of instantaneity of industrial control system detection system, including: DATA REASONING probe 101, for measuring the measured value data that transmitter in industrial control system sends out, and executor receives the time of controller output data, and is tagged in data the time measured；For DCS(dcs), probe can directly measure communication simulation signal (such as 4 20mA analog current signal)；For FCS(field bus control system), probe can the fieldbus data report that communicates with field instrument of direct detection.
Dedicated communications network 102, is used for connecting each probe and detection computer, by the measured value with free labelling
The data of data or controller output are sent to detection computer；Detection computer 103, for receiving measured value data with free labelling or the data of controller output, and control the loop computing relay time according to detection range set in advance or particular procedure, according to drawing instantaneity of industrial control system result time delay, and export real-time result；Detection computer is based on high-performance calculation platform, for instance use the server of multi-core CPU.
Precision time service system 104, for carrying out time synchronized by dedicated communications network timing to data measuring probe.
In described instantaneity of industrial control system detection system, described DATA REASONING probe 101 includes at least two, and described DATA REASONING probe is arranged on field instrument, maybe can by described DATA REASONING probe as far as possible close to the probe of field instrument, the particular number of probe can be determined according to the field instrument quantity that need to measure；In described instantaneity of industrial control system detection system, described precision time service system 104 also includes: time service server and real-time clock, and described real-time clock is arranged on DATA REASONING probe, precision time service system to the timing tracking accuracy of each probe less than 1ms.
In order to accurately measure time delay, the often group valid data that each probe measurement arrives, or each datagram detected must stamp precise time labelling, and therefore each probe must keep high-precision time synchronized.In order to achieve this it is needed arrange precision time service system, time service time service agreement Network Based, realized by dedicated communications network.
As seen through the above description of the embodiments, those skilled in the art is it can be understood that can add the mode of required general hardware platform by software to the present invention and realize.Although depicting the present invention by embodiment, it will be appreciated by the skilled addressee that the present invention has many deformation and is varied without departing from the spirit of the present invention, it is desirable to appended claim includes these deformation and is varied without departing from the spirit of the present invention.
Claims (3)
1. an instantaneity of industrial control system detection system, including: DATA REASONING is popped one's head in, for measuring the measured value data that transmitter in industrial control system sends out, and executor receives the time of controller output data, and is tagged in data the time measured；Dedicated communications network, is used for connecting each probe and detection computer, the data that the measured value data with free labelling or controller export is sent to detection computer；Detection computer, for receiving measured value data with free labelling or the data of controller output, and control the loop computing relay time according to detection range set in advance or particular procedure, according to drawing instantaneity of industrial control system result time delay, and export real-time result；Precision time service system, for carrying out time synchronized by dedicated communications network timing to data measuring probe.
2. a kind of instantaneity of industrial control system detection system according to claim 1, it is characterized in that: described DATA REASONING probe includes at least two, and described DATA REASONING probe is arranged on field instrument, or by described DATA REASONING probe as far as possible close to the probe of field instrument.
3. a kind of instantaneity of industrial control system detection system according to claim 1, it is characterized in that: in described instantaneity of industrial control system detection system, described precision time service system also includes: time service server and real-time clock, described real-time clock is arranged on DATA REASONING probe, precision time service system to the timing tracking accuracy of each probe less than 1ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410796136.8A CN105759779A (en) | 2014-12-18 | 2014-12-18 | Real time performance detecting system for industrial control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410796136.8A CN105759779A (en) | 2014-12-18 | 2014-12-18 | Real time performance detecting system for industrial control system |
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| CN105759779A true CN105759779A (en) | 2016-07-13 |
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| CN201410796136.8A Pending CN105759779A (en) | 2014-12-18 | 2014-12-18 | Real time performance detecting system for industrial control system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976304A (en) * | 2006-12-07 | 2007-06-06 | 华为技术有限公司 | Network time delay measuring method and system |
| CN102608928A (en) * | 2012-01-13 | 2012-07-25 | 浙江大学 | Embedded vision measurement and control system based on Ethernet and measurement and control method of embedded vision measurement and control system |
| CN103281148A (en) * | 2013-05-10 | 2013-09-04 | 国家电网公司 | Network time synchronization method without special support of exchanger |
| CN103631249A (en) * | 2012-09-10 | 2014-03-12 | 哈尔滨安天科技股份有限公司 | System and method for detecting instantaneity of industrial control system |
-
2014
- 2014-12-18 CN CN201410796136.8A patent/CN105759779A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976304A (en) * | 2006-12-07 | 2007-06-06 | 华为技术有限公司 | Network time delay measuring method and system |
| CN102608928A (en) * | 2012-01-13 | 2012-07-25 | 浙江大学 | Embedded vision measurement and control system based on Ethernet and measurement and control method of embedded vision measurement and control system |
| CN103631249A (en) * | 2012-09-10 | 2014-03-12 | 哈尔滨安天科技股份有限公司 | System and method for detecting instantaneity of industrial control system |
| CN103281148A (en) * | 2013-05-10 | 2013-09-04 | 国家电网公司 | Network time synchronization method without special support of exchanger |
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Application publication date: 20160713 |