CN103954315B - Data collecting system online test method - Google Patents
Data collecting system online test method Download PDFInfo
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- CN103954315B CN103954315B CN201410171348.7A CN201410171348A CN103954315B CN 103954315 B CN103954315 B CN 103954315B CN 201410171348 A CN201410171348 A CN 201410171348A CN 103954315 B CN103954315 B CN 103954315B
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- power supply
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- direct current
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Abstract
This method is for data acquisition technology field, i.e. for testing on-line calibration and the detection method of system.Data collecting system online test method, during detection: (1) disconnects safety type binding post；(2) test is accessed on data acquisition signal terminal block positive and negative electrode corresponding thereto with the positive and negative electrode test pencil accessing standard；(3) according to the parameter metrology characteristic of two-wire system direct current transmitter to be tested, data collecting system can be detected by input standard signal；(4) after detection terminates, only safety type binding post need to be closed, i.e. the normal work of restorable system.The advantage of this method: do not affected by line resistance；Avoiding the impact of correlated noise, improve capacity of resisting disturbance, test data are accurate.Safety simple to operation, improves work efficiency.
Description
Technical field:
This method is for data acquisition technology field, i.e. for test system on-line calibration and
Detection method.
Background technology:
Currently for the measuring method of data, commonly used is that data collecting plate card gathers number
According to.Holding instrument before the selection, during the mode of connection of sensor or transmitter, front end passes
Sensor or transmitter commonly used be voltage signal, signal is subject in the transmitting procedure of distance
To the impact of line resistance, make signal that decay and serious distortion to occur；Data collecting system with
The connected mode of front end instrument uses terminal row wiring, is testing data collecting system
Time, the line with front end instrument of dismantling, then system is detected, recover it after detection
Connecting, once dismounting, during resetting, it is conscientious careful to need, and careless slightly system is just
There will be beyond thought fault.If terminal dismounting often can cause contact resistance become big,
Signal fading badly will be made, and the accuracy of DATA REASONING cannot be ensured.
Summary of the invention:
The purpose of the invention is to provide one and has got final product pairwise testing system without dismantling wire
The detection method of system.
The invention is achieved through the following technical solutions:
Data collecting system online test method, this method comprises the following steps:
The first step, wiring connects in the following manner:
Front end instrument all uses two-wire system direct current transmitter, bearing of each two-wire system direct current transmitter
A positive pole of data acquisition signal terminal block is accessed in pole；Each two-wire system direct current transmitter is just
The positive pole of power supply terminal line bank, the positive pole of power supply terminal line bank and power supply are accessed in pole
Positive pole is connected by safety type binding post；The negative pole of power supply and power supply terminal line bank
Negative pole connects, the negative pole of power supply terminal line bank and each negative pole of data acquisition signal terminal block
Connect；Data acquisition signal terminal block is connected with data collecting system；
Second step, detects data collecting system in the following manner:
(1) safety type binding post is disconnected；
(2) test is accessed data acquisition signal terminal with the positive and negative electrode test pencil accessing standard
On row's positive and negative electrode corresponding thereto；
(3) according to the parameter metrology characteristic of two-wire system direct current transmitter to be tested, standard is inputted
Data collecting system can be detected by signal；
(4) after detection terminates, only safety type binding post need to be closed, i.e. restorable system
Normal work.
The advantage of this method: do not affected by line resistance；Avoid the impact of correlated noise, carry
High capacity of resisting disturbance, test data are accurate.Safety simple to operation, improves work effect
Rate.
Accompanying drawing explanation
Fig. 1 this test system online test method first step attachment structure schematic diagram.
Detailed description of the invention:
Data collecting system online test method, this method comprises the following steps:
The first step, wiring connects in the following manner:
Front end instrument all uses two-wire system direct current transmitter, and is to mark with (4～20) mADC
The quasi-signal of telecommunication exports, and (4～20) mA electric current loop is structurally by two parts i.e. transmitter and connecing
Receipts device forms, and transmitter is normally at on-the-spot end, sensor side or module end, and receptor one
As in data collecting system.The working power of two-wire system direct current transmitter and signal share one
Wire.The negative pole of each two-wire system direct current transmitter accesses of data acquisition signal terminal block
Positive pole；The positive pole of each two-wire system direct current transmitter accesses the positive pole of power supply terminal line bank, electricity
The positive pole of source terminal line bank is connected by safety type binding post with the positive pole of power supply；Supply
Electricity power supply uses 24VDC power supply.The contact resistance of safety type binding post is essentially close to zero.
The negative pole of power supply is connected with the negative pole of power supply terminal line bank, bearing of power supply terminal line bank
Pole is connected with each negative pole of data acquisition signal terminal block；Data acquisition signal terminal block and number
Connect according to acquisition system；Power supply terminal line bank can have multiple interconnective positive pole, and multiple
Interconnective negative pole；Also can only one of which positive pole and a negative pole.
Second step, detects data collecting system in the following manner:
(1) safety type binding post is disconnected；
(2) test is accessed data acquisition signal terminal with the positive and negative electrode test pencil accessing standard
On row's positive and negative electrode corresponding thereto；
(3) according to the parameter metrology characteristic of two-wire system direct current transmitter to be tested, standard is inputted
Data collecting system can be detected by signal；
(4) after detection terminates, only safety type binding post need to be closed, i.e. restorable system
Normal work.
Claims (1)
1. data collecting system online test method, is characterized in that, this method includes following step
Rapid:
The first step, wiring connects in the following manner:
Front end instrument all uses two-wire system direct current transmitter, and is with 4～20mADC standard electric
Signal exports, and 4～20mA electric current loops are structurally made up of two parts i.e. transmitter and receptor,
Transmitter is normally at on-the-spot end, sensor side or module end, and receptor is typically at data acquisition
In collecting system；The working power of two-wire system direct current transmitter and signal share a wire；Each
The negative pole of two-wire system direct current transmitter accesses a positive pole of data acquisition signal terminal block；Each
The positive pole of two-wire system direct current transmitter accesses the positive pole of power supply terminal line bank, power supply terminal wiring
The positive pole of row is connected by safety type binding post with the positive pole of power supply；Power supply uses
24VDC power supply；The negative pole of power supply is connected with the negative pole of power supply terminal line bank, power end
The negative pole of sub-line bank is connected with each negative pole of data acquisition signal terminal block；Data acquisition is believed
Number terminal block is connected with data collecting system；
Second step, detects data collecting system in the following manner:
(1) safety type binding post is disconnected；
(2) test is accessed data acquisition signal terminal with the positive and negative electrode test pencil accessing standard
On row's positive and negative electrode corresponding thereto；
(3) according to the parameter metrology characteristic of two-wire system direct current transmitter to be tested, standard is inputted
Data collecting system can be detected by signal；
(4) after detection terminates, only safety type binding post need to be closed, i.e. restorable system
Normal work.
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 |
|---|---|
| CN103954315A CN103954315A (en) | 2014-07-30 |
| CN103954315B true 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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (2)
| 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 |
| US6687642B2 (en) * | 2001-01-26 | 2004-02-03 | Texas Instruments Incorporated | Condition responsive sense system and method |
-
2014
- 2014-04-25 CN CN201410171348.7A patent/CN103954315B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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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| CN103954315A (en) | 2014-07-30 |
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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. |