CN107655624A - Pressure transmitter monitoring method - Google Patents
Pressure transmitter monitoring method Download PDFInfo
- Publication number
- CN107655624A CN107655624A CN201710821316.0A CN201710821316A CN107655624A CN 107655624 A CN107655624 A CN 107655624A CN 201710821316 A CN201710821316 A CN 201710821316A CN 107655624 A CN107655624 A CN 107655624A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000005856 abnormality Effects 0.000 claims abstract description 5
- 230000007613 environmental effect Effects 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims description 16
- FNMKZDDKPDBYJM-UHFFFAOYSA-N 3-(1,3-benzodioxol-5-yl)-7-(3-methylbut-2-enoxy)chromen-4-one Chemical compound C1=C2OCOC2=CC(C2=COC=3C(C2=O)=CC=C(C=3)OCC=C(C)C)=C1 FNMKZDDKPDBYJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000009530 blood pressure measurement Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/007—Malfunction diagnosis, i.e. diagnosing a sensor defect
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/02—Testing or calibrating of apparatus for measuring fluid pressure of indicators
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of pressure transmitter monitoring method, it is contemplated that each component needs completely be detected after isolating, therefore abandons being separately monitored then being monitored from overall output sense for component.Pressure transmitter monitoring method provided by the invention, the numerical value of pressure transmitter can be monitored, and send prompting warning message to server in time, and monitoring threshold value is calculated after Primary Stage Data gathers, data Accuracy Error is small.It additionally can interpolate that the state of pressure sensor and send prompting warning message to server in pressure sensor failure or environmental abnormality.
Description
Technical field
The invention belongs to industry control element monitoring technical field, and in particular to the monitoring method of pressure transmitter.
Background technology
Pressure transmitter is a kind of to convert pressure into pneumatic signal or electromotive signal is controlled equipment with teletransmission.It
The physical pressure parameters such as gas that load cell is experienced, liquid can be transformed into the electric signal of standard（Such as 4 ~
20mADC etc.）, measured, indicated and procedure regulation with supplying the secondary meters such as indicator alarm, recorder, adjuster.Pressure
Power transmitter is a kind of transmitter commonly used in industrial practice, is widely used in various industrial automatic control environment.
The verification of pressure transmitter, detection are maintenance and the safeguard work of routine, with ensure product it is working properly,
Performance is qualified.It is currently that periodically pressure transmitter is detected, whether working properly, but work as if testing its shell, inner member
When pressure transmitter breaks down, so do obviously can not pinpoint the problems in time, abnormal data can be caused to be taken as normal number
According to typing, so as to cause the overall deviation of follow-up industrial control system operation.
The content of the invention
To solve the above problems, the invention discloses a kind of pressure transmitter monitoring method, it is contemplated that each component needs
It can completely be detected after isolating, therefore abandon being separately monitored then entering from overall output sense for component
Row monitoring.
In order to achieve the above object, the present invention provides following technical scheme：
The monitoring method of pressure transmitter, comprises the following steps：
Step 1, the collection of basic data is carried out to pressure transmitter, pressure transmitter is applied to enter line number in different medium
According to collection, change the pressure that pressure transmitter surveys medium, several pressure measurement points are taken in range ability, surveyed in each pressure
Amount point is tested several times, and takes the average, maximum and minimum value of each test value；Calculate each test value maximum and average it
Between difference fluctuate the upper limit as pick-up, difference between each test value minimum value and average is as pick-up fluctuation lower limit；
Step 2, pressure transmitter is installed in place, and gathers the data of pressure transmitter and pressure sensor therein transmission；
The data of step 3, regular continuous several times collection pressure transmitter output data and pressure sensor output, calculate pressure
Transmitter exports average and maximin, when pick-up maximum becomes beyond maximum pick-up threshold value or pick-up minimum value less than minimum
When sending threshold value, gathered again once every for a period of time, when in second of gathered data pick-up maximum beyond maximum pick-up threshold value or
When pick-up minimum value is less than minimum pick-up threshold value, pressure transmitter failure is prompted in server end, and synchronously calculate pressure sensing
Device exports average and maximin, judges that pressure sensor maximum is less than most brief biography beyond maximum sensing threshold or minimum value
When feeling threshold value, pressure sensor failure and environmental abnormality information are prompted in server end, when pressure sensor maximum not less than
Maximum sensing threshold and when minimum value is not below minimum sensing threshold, in server end cue circuit plate likelihood of failure.
As an improvement, in step 1, using the average and the fluctuation upper limit of each pressure spot, it is bent to obtain the fitting of the pick-up upper limit
Line, using the average and fluctuation lower limit of each pressure spot, obtain pick-up lower limit matched curve.
In step 1, at the same gather pressure sensor itself output signal, take each pressure sensor output valve average,
Maximum and minimum value, the difference calculated between each test value maximum and average fluctuate the upper limit, each test as pressure sensing
The difference being worth between minimum value and average fluctuates lower limit as pressure sensing.
Further, in step 1, using each pressure sensing average and the fluctuation upper limit, the fitting of the pressure sensing upper limit is obtained
Curve, using each pressure sensing average and fluctuation lower limit, obtain pressure sensing lower limit matched curve.
Further, the calculation of maximum pick-up threshold value is in the step 3：Obtained in current average+step 1
Fluctuate upper limit * k；The calculation of minimum pick-up threshold value is：The fluctuation lower limit * j obtained in current average-step 1；Maximum passes
Sense threshold value calculation be：The sensing fluctuation upper limit * m obtained in current average+step 1；The calculating side of minimum sensing threshold
Formula is：The sensing lower limit * n obtained in current average-step 1.
Further, also certain interval of time is acquired separately judgement to pressure sensor output data, when sensing maximum
When being less than minimum sensing threshold beyond maximum sensing threshold or sensing minimum value, gathered again once every for a period of time, when second
In gathered data sense maximum beyond maximum sensing threshold or sensing minimum value be less than minimum sensing threshold when, in server end
Prompt pressure sensor failure.
Compared with prior art, the invention has the advantages that and beneficial effect：
Pressure transmitter monitoring method provided by the invention, the numerical value of pressure transmitter can be monitored, and be sent out in time to server
Prompting warning message is sent, and monitoring threshold value is calculated after Primary Stage Data gathers, data Accuracy Error is small.This
The state of pressure sensor can also be judged outside and sent to server in pressure sensor failure or environmental abnormality to carry
Show warning message.
Embodiment
Technical scheme provided by the invention is described in detail below with reference to specific embodiment, it should be understood that following specific
Embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.
The monitoring method of pressure transmitter, comprises the following steps：
Step 1, the collection of basic data is carried out to pressure transmitter first, pressure transmitter is applied to enter in different medium
Row data acquisition, and collection average, maximum and minimum value under different application medium are taken respectively；Change pressure transmitter to be surveyed
The pressure of medium, 5 pressure measurement points are at least taken in range ability, are tested several times in each pressure measurement point, and taken each
Average, maximum and the minimum value of test value.The difference between each test value maximum and average is calculated as the upper limit is fluctuated, respectively
Difference between test value minimum value and average is as fluctuation lower limit.
As an improvement, using the average and the fluctuation upper limit of each pressure spot, pick-up upper limit matched curve is obtained.Using each
The average and fluctuation lower limit of pressure spot, obtain pick-up lower limit matched curve.
Foregoing different medium should comprise at least three kinds of liquid, gas and steam species.
Step 2, pressure transmitter is installed in place, and gathers the data of pressure transmitter transmission.Under normal circumstances, press
The data that pressure sensor in power transmitter measures pass through wiring board（Change-over circuit）Outwards output afterwards, is not only needed in of the invention
Gather the data that pressure transmitter externally exports after circuit board is changed, it is also necessary to gather pressure sensor itself output
Data.The data and pressure sensor of pressure transmitter overall output itself output data respectively be collected and remote transmission extremely
In server.
As an improvement, in step 1, the signal of pressure sensor itself output also should be individually gathered, i.e., in variety classes
Medium, in different pressures environment, under at least five pressure measurement point, take the average of each pressure sensor output valve, maximum and most
Small value.Calculate difference between each test value maximum and average and fluctuate the upper limit as pressure sensing, each test value minimum value with
Difference between average fluctuates lower limit as pressure sensing.And using each pressure sensing average and the upper limit further can be fluctuated,
Obtain pressure sensing upper limit matched curve.Using each pressure sensing average and fluctuation lower limit, the fitting of pressure sensing lower limit is obtained
Curve.
Step 3, periodically（Such as every 5 minutes once）Continuous several times gather pressure transmitter output data and pressure sensing
The data of device output, pressure transmitter output average and maximin are calculated, when pick-up maximum exceeds maximum pick-up threshold value
Or pick-up minimum value gathered once, when pick-up maximum in second of gathered data when being less than minimum pick-up threshold value again every 5 minutes
When being less than minimum pick-up threshold value beyond maximum pick-up threshold value or pick-up minimum value, pressure transmitter failure is prompted in server end,
And synchronous calculation pressure sensor output average and maximin, judge that pressure sensor maximum exceeds maximum sensing threshold
Or minimum value prompts pressure sensor failure and environmental abnormality information when being less than minimum sensing threshold in server end.Work as pressure
When sensor maximum is not below minimum sensing threshold not less than maximum sensing threshold and minimum value, in server end cue circuit
Plate likelihood of failure.
The calculation of above-mentioned maximum pick-up threshold value is：The fluctuation upper limit * k obtained in current average+step 1, here
K values value as needed, between generally 1~2.Average can also be substituted into the pick-up upper limit matched curve that step 1 obtains
In, obtain maximum pick-up threshold value.Similarly, the calculation of minimum pick-up threshold value is：The fluctuation obtained in current average-step 1
Lower limit * j, j values value as needed here, between generally 1~2.Average can also be substituted into the pick-up that step 1 obtains
In lower limit matched curve, minimum pick-up threshold value is obtained.
The calculation of above-mentioned maximum sensing threshold is：The sensing fluctuation upper limit * m obtained in current average+step 1, this
In m values value as needed, between generally 1~2.Average can also be substituted into the sensing upper limit that step 1 obtains and be fitted song
In line, maximum sensing threshold is obtained.Similarly, the calculation of minimum sensing threshold is：The biography obtained in current average-step 1
Feel lower limit * n, n values value as needed here, between generally 1~2.Average can also be substituted into the biography that step 1 obtains
Feel in lower limit matched curve, obtain minimum sensing threshold.
As the improvement of step 3, pressure sensor output data also should be every the long period（Such as weekly）It is independent
Collection judgement, when sensing maximum is less than minimum sensing threshold beyond maximum sensing threshold or sensing minimum value, every 5 minutes again
Collection once, senses when sensing maximum in second of gathered data beyond maximum sensing threshold or sensing minimum value less than minimum
During threshold value, pressure sensor failure is prompted in server end.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned embodiment, in addition to
Formed technical scheme is combined by above technical characteristic.It should be pointed out that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (6)
1. the monitoring method of pressure transmitter, it is characterised in that comprise the following steps：
Step 1, the collection of basic data is carried out to pressure transmitter, pressure transmitter is applied to enter line number in different medium
According to collection, change the pressure that pressure transmitter surveys medium, several pressure measurement points are taken in range ability, surveyed in each pressure
Amount point is tested several times, and takes the average, maximum and minimum value of each test value；Calculate each test value maximum and average it
Between difference fluctuate the upper limit as pick-up, difference between each test value minimum value and average is as pick-up fluctuation lower limit；
Step 2, pressure transmitter is installed in place, and gathers the data of pressure transmitter and pressure sensor therein transmission；
The data of step 3, regular continuous several times collection pressure transmitter output data and pressure sensor output, calculate pressure
Transmitter exports average and maximin, when pick-up maximum becomes beyond maximum pick-up threshold value or pick-up minimum value less than minimum
When sending threshold value, gathered again once every for a period of time, when in second of gathered data pick-up maximum beyond maximum pick-up threshold value or
When pick-up minimum value is less than minimum pick-up threshold value, pressure transmitter failure is prompted in server end, and synchronously calculate pressure sensing
Device exports average and maximin, judges that pressure sensor maximum is less than most brief biography beyond maximum sensing threshold or minimum value
When feeling threshold value, pressure sensor failure and environmental abnormality information are prompted in server end, when pressure sensor maximum not less than
Maximum sensing threshold and when minimum value is not below minimum sensing threshold, in server end cue circuit plate likelihood of failure.
2. the monitoring method of pressure transmitter according to claim 1, it is characterised in that：In step 1, each pressure is utilized
The average and the fluctuation upper limit in force, obtain pick-up upper limit matched curve, using the average and fluctuation lower limit of each pressure spot, obtain
Pick-up lower limit matched curve.
3. the monitoring method of pressure transmitter according to claim 1, it is characterised in that：In step 1, while gather pressure
The signal of force snesor itself output, takes average, maximum and the minimum value of each pressure sensor output valve, calculates each test value
Difference between maximum and average fluctuates the upper limit, the difference conduct between each test value minimum value and average as pressure sensing
Pressure sensing fluctuates lower limit.
4. the monitoring method of pressure transmitter according to claim 3, it is characterised in that：In step 1, each pressure is utilized
Power senses average and the fluctuation upper limit, obtains pressure sensing upper limit matched curve, using each pressure sensing average and fluctuates lower limit,
Obtain pressure sensing lower limit matched curve.
5. the monitoring method of pressure transmitter according to claim 1, it is characterised in that：Maximum pick-up in the step 3
The calculation of threshold value is：The fluctuation upper limit * k obtained in current average+step 1；The calculation of minimum pick-up threshold value is：
The fluctuation lower limit * j obtained in current average-step 1；The calculation of maximum sensing threshold is：In current average+step 1
Obtained sensing fluctuation upper limit * m；The calculation of minimum sensing threshold is：Under the sensing obtained in current average-step 1
Limit * n.
6. the monitoring method of pressure transmitter according to claim 1, it is characterised in that：Pressure sensor output data
Certain interval of time is acquired separately judgement, when sensing maximum is less than most brief biography beyond maximum sensing threshold or sensing minimum value
When feeling threshold value, gathered again once every for a period of time, when sensed in second of gathered data maximum beyond maximum sensing threshold or
When sensing minimum value is less than minimum sensing threshold, pressure sensor failure is prompted in server end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710821316.0A CN107655624B (en) | 2017-09-13 | 2017-09-13 | Pressure transmitter monitoring method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710821316.0A CN107655624B (en) | 2017-09-13 | 2017-09-13 | Pressure transmitter monitoring method |
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| Publication Number | Publication Date |
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| CN107655624A true CN107655624A (en) | 2018-02-02 |
| CN107655624B CN107655624B (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710821316.0A Active CN107655624B (en) | 2017-09-13 | 2017-09-13 | Pressure transmitter monitoring method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029506A (en) * | 2018-07-13 | 2018-12-18 | 中国联合网络通信集团有限公司 | A kind of signal acquisition method and system |
| CN111414782A (en) * | 2019-01-08 | 2020-07-14 | 周静 | Face identification security control platform |
| CN111504452A (en) * | 2020-06-05 | 2020-08-07 | 国动信息技术研究院(江苏)有限公司 | Monitoring apparatus and vibration abnormality determination method |
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| US6038912A (en) * | 1998-05-14 | 2000-03-21 | Honda Giken Kogyo Kabushiki Kaisha | Failure detection system of pressure sensor |
| CN101000273A (en) * | 2007-01-09 | 2007-07-18 | 上海工业自动化仪表研究所 | Multiple regulating device for pressure/differential pressure sensor |
| CN102322890A (en) * | 2011-05-30 | 2012-01-18 | 三一重工股份有限公司 | A kind of transmitter fault diagnosis circuit and method |
| CN103575466A (en) * | 2012-07-18 | 2014-02-12 | 阿自倍尔株式会社 | Pressure guiding tube blockage diagnosing device and blockage diagnosing method |
| CN103871512A (en) * | 2012-12-11 | 2014-06-18 | 中国核动力研究设计院 | Major loop pressure checking method for calculation of saturation temperature of reactor core |
| CN104729794A (en) * | 2013-12-24 | 2015-06-24 | 中国科学院沈阳自动化研究所 | Collecting and diagnosing circuit of capacitive type safe pressure transmitter |
| CN105784256A (en) * | 2016-04-08 | 2016-07-20 | 上海恒瑞测控技术有限公司 | High-frequency substantial-vibration high-pressure-intensity measurement method and apparatus |
-
2017
- 2017-09-13 CN CN201710821316.0A patent/CN107655624B/en active Active
Patent Citations (7)
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|---|---|---|---|---|
| US6038912A (en) * | 1998-05-14 | 2000-03-21 | Honda Giken Kogyo Kabushiki Kaisha | Failure detection system of pressure sensor |
| CN101000273A (en) * | 2007-01-09 | 2007-07-18 | 上海工业自动化仪表研究所 | Multiple regulating device for pressure/differential pressure sensor |
| CN102322890A (en) * | 2011-05-30 | 2012-01-18 | 三一重工股份有限公司 | A kind of transmitter fault diagnosis circuit and method |
| CN103575466A (en) * | 2012-07-18 | 2014-02-12 | 阿自倍尔株式会社 | Pressure guiding tube blockage diagnosing device and blockage diagnosing method |
| CN103871512A (en) * | 2012-12-11 | 2014-06-18 | 中国核动力研究设计院 | Major loop pressure checking method for calculation of saturation temperature of reactor core |
| CN104729794A (en) * | 2013-12-24 | 2015-06-24 | 中国科学院沈阳自动化研究所 | Collecting and diagnosing circuit of capacitive type safe pressure transmitter |
| CN105784256A (en) * | 2016-04-08 | 2016-07-20 | 上海恒瑞测控技术有限公司 | High-frequency substantial-vibration high-pressure-intensity measurement method and apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029506A (en) * | 2018-07-13 | 2018-12-18 | 中国联合网络通信集团有限公司 | A kind of signal acquisition method and system |
| CN111414782A (en) * | 2019-01-08 | 2020-07-14 | 周静 | Face identification security control platform |
| CN111414782B (en) * | 2019-01-08 | 2021-06-11 | 徐莎莎 | Face identification security control platform |
| CN111504452A (en) * | 2020-06-05 | 2020-08-07 | 国动信息技术研究院(江苏)有限公司 | Monitoring apparatus and vibration abnormality determination method |
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| Publication number | Publication date |
|---|---|
| CN107655624B (en) | 2020-06-09 |
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