CN103954315A - Online detecting method of data collecting system - Google Patents
Online detecting method of data collecting system Download PDFInfo
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- CN103954315A CN103954315A CN201410171348.7A CN201410171348A CN103954315A CN 103954315 A CN103954315 A CN 103954315A CN 201410171348 A CN201410171348 A CN 201410171348A CN 103954315 A CN103954315 A CN 103954315A
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Abstract
The invention relates to a method used in the technical field of data collection, in particular to an online calibrating and detecting method for a testing system. The online detecting method of the data collecting system comprises the steps that during detection, (1) a protection-type wiring terminal is disconnected; (2) a positive electrode probe of an access standard unit for testing and a negative electrode probe of the access standard unit for testing are connected with a corresponding positive electrode of a data collection signal terminal strip and a corresponding negative electrode of the data collection signal terminal strip; (3) standard signals are input according to parameter metering characteristics of a two-wire-system direct-current transmitter to be tested and then the data collecting system can be detected; (4) after detection is completed, normal work of the system can be recovered by simply connecting the protection-type wiring terminal. The online detecting method of the data collecting system has the advantages that the influences of circuit resistance are avoided, the influences of related noise are also avoided, the interference resisting capacity is improved, testing data are accurate, operation is simple, convenient and safe, and the working efficiency is increased.
Description
Technical field:
This method is for data acquisition technology field, for on-line calibration and the detection method of test macro.
Background technology:
At present, for the measuring method of data, what generally adopt is data collecting plate card image data.Selecting front end instrument, in the mode of connection process of sensor or transmitter, what front end sensors or transmitter generally adopted is voltage signal, and signal is subject to the impact of line resistance in the transmitting procedure of long distance, makes signal that decay and serious distortion occur; The connected mode of data acquisition system (DAS) and front end instrument adopts terminal row wiring, when data acquisition system (DAS) is tested, the line of dismantling with front end instrument, again system is detected, after detection, recover it and connect, once dismounting, in the process resetting, it is carefully conscientious to need, and careless slightly system just there will be beyond thought fault.If often can cause contact resistance to become large to terminal dismounting, will make signal fading badly, and cannot guarantee the accuracy of DATA REASONING.
Summary of the invention:
The object of the invention be to provide a kind of without dismounting wire can complete the detection method to test macro.
The invention is achieved through the following technical solutions:
Data acquisition system (DAS) online test method, this method comprises the following steps:
The first step, wiring connects in the following manner:
Front end instrument all adopts two-wire system direct current transmitter, a positive pole of the negative pole access data collection signal terminal row of each two-wire system direct current transmitter; The positive pole of the positive pole access power supply terminal line bank of each two-wire system direct current transmitter, the positive pole of power supply terminal line bank is connected by safety type connection terminal with the positive pole of power supply; The negative pole of power supply is connected with the negative pole of power supply terminal line bank, and the negative pole of power supply terminal line bank is connected with each negative pole of data acquisition signal terminal row; Data acquisition signal terminal row is connected with data acquisition system (DAS);
Second step, detects data acquisition system (DAS) in the following manner:
(1) disconnect safety type connection terminal;
(2) by the positive and negative electrode test pencil access data collection signal terminal row of test use access standard positive and negative electrode corresponding thereto;
(3), according to the parameter meter characteristic of the two-wire system direct current transmitter that will test, input standard signal can detect data acquisition system (DAS);
(4) after detection finishes, only need safety type connection terminal is closed, i.e. the normal work of restorable system.
The advantage of this method: be not subject to the impact of line resistance; Avoid the impact of correlation noise, improved antijamming capability, test data is accurate.Safety simple to operation, has improved work efficiency.
Accompanying drawing explanation
This test macro of Fig. 1 online test method first step syndeton schematic diagram.
Embodiment:
Data acquisition system (DAS) online test method, this method comprises the following steps:
The first step, wiring connects in the following manner:
Front end instrument all adopts two-wire system direct current transmitter, and be to export with (4～20) mADC standard electric signal, (4～20) mA electric current loop is structurally that transmitter and receiver form by two parts, transmitter is generally positioned at on-the-spot end, sensor side or module end, and receiver is generally in data acquisition system (DAS).The working power of two-wire system direct current transmitter and signal share a wire.A positive pole of the negative pole access data collection signal terminal row of each two-wire system direct current transmitter; The positive pole of the positive pole access power supply terminal line bank of each two-wire system direct current transmitter, the positive pole of power supply terminal line bank is connected by safety type connection terminal with the positive pole of power supply; Power supply adopts 24VDC power supply.The contact resistance of safety type connection terminal is substantially close to zero.The negative pole of power supply is connected with the negative pole of power supply terminal line bank, and the negative pole of power supply terminal line bank is connected with each negative pole of data acquisition signal terminal row; Data acquisition signal terminal row is connected with data acquisition system (DAS); Power supply terminal line bank can have a plurality of interconnective positive poles, and a plurality of interconnective negative pole; Also can only have a positive pole and a negative pole.
Second step, detects data acquisition system (DAS) in the following manner:
(1) disconnect safety type connection terminal;
(2) by the positive and negative electrode test pencil access data collection signal terminal row of test use access standard positive and negative electrode corresponding thereto;
(3), according to the parameter meter characteristic of the two-wire system direct current transmitter that will test, input standard signal can detect data acquisition system (DAS);
(4) after detection finishes, only need safety type connection terminal is closed, i.e. the normal work of restorable system.
Claims (1)
1. data acquisition system (DAS) online test method, is characterized in that, this method comprises the following steps:
The first step, wiring connects in the following manner:
Front end instrument all adopts two-wire system direct current transmitter, a positive pole of the negative pole access data collection signal terminal row of each two-wire system direct current transmitter; The positive pole of the positive pole access power supply terminal line bank of each two-wire system direct current transmitter, the positive pole of power supply terminal line bank is connected by safety type connection terminal with the positive pole of power supply; The negative pole of power supply is connected with the negative pole of power supply terminal line bank, and the negative pole of power supply terminal line bank is connected with each negative pole of data acquisition signal terminal row; Data acquisition signal terminal row is connected with data acquisition system (DAS);
Second step, detects data acquisition system (DAS) in the following manner:
(1) disconnect safety type connection terminal;
(2) by the positive and negative electrode test pencil access data collection signal terminal row of test use access standard positive and negative electrode corresponding thereto;
(3), according to the parameter meter characteristic of the two-wire system direct current transmitter that will test, input standard signal can detect data acquisition system (DAS);
(4) after detection finishes, only need safety type connection terminal is closed, i.e. the normal work of restorable system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171348.7A CN103954315B (en) | 2014-04-25 | 2014-04-25 | Data collecting system online test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171348.7A CN103954315B (en) | 2014-04-25 | 2014-04-25 | Data collecting system online test method |
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| Publication Number | Publication Date |
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| CN103954315A true CN103954315A (en) | 2014-07-30 |
| CN103954315B CN103954315B (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410171348.7A Active CN103954315B (en) | 2014-04-25 | 2014-04-25 | Data collecting system online test method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776571A (en) * | 2021-07-30 | 2021-12-10 | 华电电力科学研究院有限公司 | Online calibration method for thermal monitoring instrument of power plant |
| CN114325538A (en) * | 2021-12-30 | 2022-04-12 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Portable multipurpose wiring device and method |
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| JPS60225022A (en) * | 1984-04-23 | 1985-11-09 | Toshiba Corp | Abnormality diagnostic circuit of double sensor system |
| US5506794A (en) * | 1989-04-28 | 1996-04-09 | Lange; Antti A. I. | Apparatus and method for calibrating a sensor system using the Fast Kalman Filtering formula |
| US20020103613A1 (en) * | 2001-01-26 | 2002-08-01 | Texas Instruments Incorporated | Condition responsive sense system and method |
| CN201926925U (en) * | 2011-01-31 | 2011-08-10 | 中国建筑第二工程局有限公司 | Multifunctional test board for agitator controlling system |
| CN103063948A (en) * | 2012-12-17 | 2013-04-24 | 辽宁省电力有限公司电力科学研究院 | Electric energy gathering terminal function testing system and method |
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2014
- 2014-04-25 CN CN201410171348.7A patent/CN103954315B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60225022A (en) * | 1984-04-23 | 1985-11-09 | Toshiba Corp | Abnormality diagnostic circuit of double sensor system |
| US5506794A (en) * | 1989-04-28 | 1996-04-09 | Lange; Antti A. I. | Apparatus and method for calibrating a sensor system using the Fast Kalman Filtering formula |
| US20020103613A1 (en) * | 2001-01-26 | 2002-08-01 | Texas Instruments Incorporated | Condition responsive sense system and method |
| CN201926925U (en) * | 2011-01-31 | 2011-08-10 | 中国建筑第二工程局有限公司 | Multifunctional test board for agitator controlling system |
| CN103063948A (en) * | 2012-12-17 | 2013-04-24 | 辽宁省电力有限公司电力科学研究院 | Electric energy gathering terminal function testing system and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776571A (en) * | 2021-07-30 | 2021-12-10 | 华电电力科学研究院有限公司 | Online calibration method for thermal monitoring instrument of power plant |
| CN113776571B (en) * | 2021-07-30 | 2023-06-27 | 华电电力科学研究院有限公司 | Online calibration method for thermal monitoring instrument of power plant |
| CN114325538A (en) * | 2021-12-30 | 2022-04-12 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Portable multipurpose wiring device and method |
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| CN103954315B (en) | 2017-01-04 |
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Address after: Fengcheng Weiyang District ten road 710021 Shaanxi city of Xi'an Province Patentee after: AECC AVIATION POWER CO,LTD. Address before: Fengcheng Weiyang District ten road 710021 Shaanxi city of Xi'an Province Patentee before: AVIC AVIATION ENGINE Corp.,PLC Address after: Fengcheng Weiyang District ten road 710021 Shaanxi city of Xi'an Province Patentee after: AVIC AVIATION ENGINE Corp.,PLC Address before: Fengcheng Weiyang District ten road 710021 Shaanxi city of Xi'an Province Patentee before: XI'AN AVIATION POWER Co.,Ltd. |