CN108505988A - Using the oil-extractor polish-rod work(figure remote sensing instrument of diaphragm pressure sensor - Google Patents
Using the oil-extractor polish-rod work(figure remote sensing instrument of diaphragm pressure sensor Download PDFInfo
- Publication number
- CN108505988A CN108505988A CN201810498156.5A CN201810498156A CN108505988A CN 108505988 A CN108505988 A CN 108505988A CN 201810498156 A CN201810498156 A CN 201810498156A CN 108505988 A CN108505988 A CN 108505988A
- Authority
- CN
- China
- Prior art keywords
- rod
- oil
- pressure sensor
- diaphragm pressure
- extractor polish
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009434 installation Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims description 3
- 230000006870 function Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 description 9
- 230000001133 acceleration Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/008—Monitoring of down-hole pump systems, e.g. for the detection of "pumped-off" conditions
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geophysics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The present invention relates to oilfield test fields, and in particular to be a kind of oil-extractor polish-rod work(figure remote sensing instrument using diaphragm pressure sensor.The present invention includes：Diaphragm pressure sensor, baroceptor, A/D circuits, CPU, memory, DTU, power-supply system, shell, solar panel, display unit, installation bolt, double C shape optical-rod clamp；The shell is fixed on by installation bolt and double C shape optical-rod clamp on oil-extractor polish-rod；The diaphragm pressure sensor is mounted between shell and double C shape optical-rod clamp, and the deformation for detecting oil-extractor polish-rod, output signal is connect with A/D circuit input ends；A/D circuits, memory, DTU, display unit and CPU connections；The present invention measures oil-extractor polish-rod deformation using diaphragm pressure sensor, overcome it is of high cost using load transducer, cumbersome, there are problems that security risk, while also reducing maintenance cost.
Description
Technical field
The invention belongs to oilfield test fields, and in particular to be oil-extractor polish-rod work(figure using diaphragm pressure sensor
Remote sensing instrument.
Background technology
Pumping unit is the important parameter for reflecting pumping unit system working condition depending on work(figure.Existing work(figure measurement method is main
In such a way that load transducer measures light rod load, acceleration transducer measurement polished rod displacement.The method needs pumping unit to take out
Load transducer is mounted on polished rod eye after beam hanger unloading.The disadvantage is that：It installs complicated for operation when sensor and exists safe hidden
Suffer from, be easy to cause personal injury；Displacement is by obtaining integrated acceleration, precision and bad adaptability；
Invention content
The object of the present invention is to provide the oil-extractor polish-rod work(figure remote sensing instruments using diaphragm pressure sensor, for solving mesh
The preceding pumping unit work(figure measuring instrument used is complicated, it is cumbersome, there are problems that security risk, precision and bad adaptability.
To achieve the above object, the present invention provides the following technical solutions：This pumping unit using diaphragm pressure sensor
Polished rod work(figure remote sensing instrument includes：Diaphragm pressure sensor, baroceptor, A/D circuits, CPU, memory, DTU, power-supply system,
Shell, solar panel, display unit, installation bolt, double C shape optical-rod clamp；The shell passes through installation bolt and double C
Shape optical-rod clamp is fixed on oil-extractor polish-rod；The diaphragm pressure sensor be mounted on shell and double C shape optical-rod clamp it
Between, the deformation for detecting oil-extractor polish-rod, output signal is connect with A/D circuit input ends；A/D circuits, DTU, are shown memory
Show that unit is connect with CPU.
Further scheme as the present invention：The baroceptor is BMP280, MS5611 or similar functions
Atmospheric pressure intensity sensor is connect by IIC or spi bus with CPU, and the height above sea level of sensor is calculated for measuring atmospheric pressure
Spend and then obtain polished rod displacement.
Further scheme as the present invention：The DTU is wireless data transmission module, is connected through serial communication interface and CPU
It connects, data remote and remote control is realized by the wireless data transmission module；The wireless data transmission module can be according to logical
Communication distance selects GPRS, 4G, LORA or WIFI module.
Further scheme as the present invention：The CPU is SCM system, carries real-time clock, is usually operated in
Electricity-saving state.
Further scheme as the present invention：The A/D circuits are the analog to digital conversion circuits of sampling precision 10 or more,
It can be that microcontroller is included, individual A/D chips or module can also be used in order to obtain higher precision.
Further scheme as the present invention：The power-supply system is to provide power supply with protection circuit for whole device
Rechargeable lithium battery；The surface that the solar panel is mounted on shell is connected with the power-supply system.
Further scheme as the present invention：The display unit is connected with CPU, can be light emitting diode lamp
It can also be display screen, be used to indicate information or display figure.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention measures oil-extractor polish-rod deformation using diaphragm pressure sensor, overcomes, behaviour of high cost using load transducer
Make it is cumbersome, there are problems that security risk；Oil-extractor polish-rod displacement is measured using baroceptor, overcomes and is passed using acceleration
Sensor does not adapt to the problem of low-frequency-stroke pumping machine work(figure measures, can adapt to the continuous of all strokes and jig frequency pumping unit work(figure
Automatic telemetering.Using solar panel plus rechargeable lithium battery power source design, reduce the line of scene power supply, structure letter
It is single, easy to operate, safe and reliable, while also reducing maintenance cost.The present invention passes through wireless data transmission module and Server remote
Data transfer to online platform to data analyze, handle and show in real time, so that user is more by connection
The client real time inspection measurement data of station terminal.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
In figure, 1, diaphragm pressure sensor, 2, baroceptor, 3, A/D circuits, 4, CPU, 5, memory, 6, DTU, 7,
Power-supply system, 8, shell, 9, solar panel, 10, display unit, 11, installation bolt, 12, double C shape optical-rod clamp, 13, take out
Oil machine polished rod.
Specific implementation mode
The technical solution of this patent is described in more detail With reference to embodiment.
In order to overcome problems of the prior art, a kind of use film as shown in Figure 1 is provided in the present embodiment
The oil-extractor polish-rod work(figure remote sensing instrument of pressure sensor, including：Diaphragm pressure sensor 1, baroceptor 2, A/D circuits 3,
CPU 4, memory 5, DTU 6, power-supply system 7, shell 8, solar panel 9, display unit 10, installation bolt 11, double C shape
Optical-rod clamp 12；The shell 8 is fixed on by installation bolt 11 and double C shape optical-rod clamp 12 on oil-extractor polish-rod 13；Institute
The diaphragm pressure sensor 1 stated is mounted between shell (8) and double C shape optical-rod clamp 12, for detecting oil-extractor polish-rod 13
Deformation, output signal are connect with 3 input terminal of A/D circuits；A/D circuits 3, memory 5, DTU 6, display unit 10 and CPU 4 connect
It connects.
As shown in Figure 1, the baroceptor 2 is the atmospheric pressure sensing of BMP280, MS5611 or similar functions
Device is connect by IIC or spi bus with CPU 4, then the height above sea level that sensor is calculated for measuring atmospheric pressure obtains
Polished rod displacement.
As shown in Figure 1, the DTU 6 is wireless data transmission module, through serial communication interface and the connections of CPU 4, pass through institute
The wireless data transmission module stated realizes data remote and remote control；The wireless data transmission module can be selected according to communication distance
GPRS, 4G, LORA or WIFI module.
As shown in Figure 1, the CPU 4 is SCM system, real-time clock is carried, electricity-saving state is usually operated in.
As shown in Figure 1, the A/D circuits 3 are the analog to digital conversion circuits of sampling precision 10 or more, can be microcontroller
Included, it can also use individual A/D chips or module to obtain higher precision.
As shown in Figure 1, the power-supply system 7 is to provide power supply with the chargeable lithium electricity for protecting circuit for whole device
Pond；The surface that the solar panel 9 is mounted on shell 8 is connected with the power-supply system 7.
As shown in Figure 1, the display unit 10 and the connections of CPU 4, can be that light emitting diode lamp can also be
Display screen is used to indicate information or display figure.
The course of work of present embodiment is：Shell 8 is fixed on oil pumping by installation bolt 11 and double C shape optical-rod clamp 12
On machine polished rod 13, adjusting installation bolt 11 makes 10 green light of display unit to reach preset pressure value.Solar energy when sunny
Solar panel 9 charges for power-supply system 7, and power-supply system 7 provides power supply for whole device；CPU 4 with real-time clock is in section
Electrician's operation mode is waken up once at interval of several milliseconds, read 2 output data of baroceptor it is primary, when detect height
Variation reach setting oil well start and stop thresholding either receive test instruction or reach setting test interval when, be each point
System powers up, and the output signal of diaphragm pressure sensor 1 is carried out A/D conversions according to the sample frequency of setting while reading air pressure
The atmospheric pressure intensity values that sensor 2 exports, are then saved in measurement result in memory 5 to form according to pressure, barometric information.
After the sampling time length completed 120 seconds or set, the initial data of acquisition is sent to by DTU 6 by host computer or clothes
Business device carries out processing and pumping unit is calculated regarding parameters such as work(figure, stroke, jig frequency and states.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical scheme of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
Claims (7)
1. a kind of oil-extractor polish-rod work(figure remote sensing instrument using diaphragm pressure sensor, which is characterized in that including：Diaphragm pressure passes
Sensor (1), baroceptor (2), A/D circuits (3), CPU (4), memory (5), DTU (6), power-supply system (7), shell (8),
Solar panel (9), display unit (10), installation bolt (11), double C shape optical-rod clamp (12)；The shell (8) passes through
Installation bolt (11) and double C shape optical-rod clamp (12) are fixed on oil-extractor polish-rod (13)；The diaphragm pressure sensor (1)
Between shell (8) and double C shape optical-rod clamp (12), the deformation for detecting oil-extractor polish-rod (13), output signal with
A/D circuits (3) input terminal connects；A/D circuits (3), memory (5), DTU (6), display unit (10) are connect with CPU (4).
2. the oil-extractor polish-rod work(figure remote sensing instrument according to claim 1 using diaphragm pressure sensor it is characterized in that：
The baroceptor (2) is the atmospheric pressure intensity sensor of BMP280, MS5611 or similar functions, total by IIC or SPI
Line is connect with CPU (4), then the height above sea level that sensor is calculated for measuring atmospheric pressure obtains polished rod displacement.
3. the oil-extractor polish-rod work(figure remote sensing instrument according to claim 1 using diaphragm pressure sensor it is characterized in that：
The DTU (6) is wireless data transmission module, through serial communication interface and CPU (4) connections, passes through the wireless data transmission module
Realize data remote and remote control；The wireless data transmission module can according to communication distance select GPRS, 4G, LORA or
WIFI module.
4. the oil-extractor polish-rod work(figure remote sensing instrument according to claim 1 using diaphragm pressure sensor it is characterized in that：
The CPU (4) is SCM system, carries real-time clock, is usually operated in electricity-saving state.
5. the oil-extractor polish-rod work(figure remote sensing instrument according to claim 1 using diaphragm pressure sensor it is characterized in that：
The A/D circuits (3) are the analog to digital conversion circuits of sampling precision 10 or more, can be that microcontroller is included, in order to obtain
Higher precision can also use individual A/D chips or module.
6. the oil-extractor polish-rod work(figure remote sensing instrument according to claim 1 using diaphragm pressure sensor it is characterized in that：
The power-supply system (7) is to provide rechargeable lithium battery of the power supply with protection circuit for whole device；The solar energy
The surface that solar panel (9) is mounted on shell (8) is connected with the power-supply system (7).
7. the oil-extractor polish-rod work(figure remote sensing instrument according to claim 1 using diaphragm pressure sensor it is characterized in that：
It can also be display screen that the display unit (10) and CPU (4) connections, which can be light emitting diode lamps, be used to indicate
Information or display figure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810498156.5A CN108505988A (en) | 2018-05-23 | 2018-05-23 | Using the oil-extractor polish-rod work(figure remote sensing instrument of diaphragm pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810498156.5A CN108505988A (en) | 2018-05-23 | 2018-05-23 | Using the oil-extractor polish-rod work(figure remote sensing instrument of diaphragm pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108505988A true CN108505988A (en) | 2018-09-07 |
Family
ID=63401340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810498156.5A Pending CN108505988A (en) | 2018-05-23 | 2018-05-23 | Using the oil-extractor polish-rod work(figure remote sensing instrument of diaphragm pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108505988A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761773A (en) * | 2019-09-23 | 2020-02-07 | 冯祎诺 | Device and method for monitoring running state of oil pumping unit |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2246709Y (en) * | 1995-08-22 | 1997-02-05 | 大庆石油管理局油田建设设计研究院 | Portable function diagram and liquid measuring instrument for well pumping unit |
| CN1560430A (en) * | 2004-02-25 | 2005-01-05 | 威海海特电子信息技术有限公司 | Wireless network intelligent indicating apparatus and its controlling method |
| CN101029639A (en) * | 2007-04-02 | 2007-09-05 | 济南新吉纳远程测控有限公司 | Method for measuring pumping-unit workdone graphic in oil field |
| CN200979467Y (en) * | 2006-10-24 | 2007-11-21 | 中国石油天然气股份有限公司 | A testing device for the torque of a polished rod in a screw pump well |
| CN201163227Y (en) * | 2008-05-16 | 2008-12-10 | 南京研控科技有限公司 | Wireless indicator diagram data instrument |
| CN101418789A (en) * | 2007-10-26 | 2009-04-29 | 濮阳市信宇石油机械化工有限公司 | Device for measuring indicator diagram of pumping unit |
| CN101673093A (en) * | 2009-09-27 | 2010-03-17 | 大连金光节能机电技术有限公司 | Intelligent variable frequency control system of oil extractor |
| CN201508258U (en) * | 2009-09-17 | 2010-06-16 | 中国石油化工股份有限公司 | Pumping unit load sensor |
| CN202329895U (en) * | 2011-11-17 | 2012-07-11 | 上海神开石油化工装备股份有限公司 | Power diagram measurement device of pumping unit in oil field |
| CN203053619U (en) * | 2012-09-05 | 2013-07-10 | 西安思坦仪器股份有限公司 | Polished rod dynamometer |
| CN203163918U (en) * | 2013-02-19 | 2013-08-28 | 范者正 | Integrated automatic measurement instrument for pumping unit indicator diagram |
| CN203940840U (en) * | 2014-05-13 | 2014-11-12 | 湖北江汉石油仪器仪表股份有限公司 | Oil-extractor polish-rod displacement tester and the two-in-one sensor unit of displacement load |
| CN203978427U (en) * | 2014-07-31 | 2014-12-03 | 北京天翊嘉和科技有限公司 | Load displacement integrated wireless indicator |
| CN205102967U (en) * | 2015-11-06 | 2016-03-23 | 江西飞尚科技有限公司 | Can reduce sucker rod load transducer of unbalance loading error |
| CN206091968U (en) * | 2016-09-06 | 2017-04-12 | 中国石油化工股份有限公司 | Oil well indicator card sensor protecting device |
| US20170329311A1 (en) * | 2016-05-13 | 2017-11-16 | General Electric Company | Beam pumping unit and method of operation |
-
2018
- 2018-05-23 CN CN201810498156.5A patent/CN108505988A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2246709Y (en) * | 1995-08-22 | 1997-02-05 | 大庆石油管理局油田建设设计研究院 | Portable function diagram and liquid measuring instrument for well pumping unit |
| CN1560430A (en) * | 2004-02-25 | 2005-01-05 | 威海海特电子信息技术有限公司 | Wireless network intelligent indicating apparatus and its controlling method |
| CN200979467Y (en) * | 2006-10-24 | 2007-11-21 | 中国石油天然气股份有限公司 | A testing device for the torque of a polished rod in a screw pump well |
| CN101029639A (en) * | 2007-04-02 | 2007-09-05 | 济南新吉纳远程测控有限公司 | Method for measuring pumping-unit workdone graphic in oil field |
| CN101418789A (en) * | 2007-10-26 | 2009-04-29 | 濮阳市信宇石油机械化工有限公司 | Device for measuring indicator diagram of pumping unit |
| CN201163227Y (en) * | 2008-05-16 | 2008-12-10 | 南京研控科技有限公司 | Wireless indicator diagram data instrument |
| CN201508258U (en) * | 2009-09-17 | 2010-06-16 | 中国石油化工股份有限公司 | Pumping unit load sensor |
| CN101673093A (en) * | 2009-09-27 | 2010-03-17 | 大连金光节能机电技术有限公司 | Intelligent variable frequency control system of oil extractor |
| CN202329895U (en) * | 2011-11-17 | 2012-07-11 | 上海神开石油化工装备股份有限公司 | Power diagram measurement device of pumping unit in oil field |
| CN203053619U (en) * | 2012-09-05 | 2013-07-10 | 西安思坦仪器股份有限公司 | Polished rod dynamometer |
| CN203163918U (en) * | 2013-02-19 | 2013-08-28 | 范者正 | Integrated automatic measurement instrument for pumping unit indicator diagram |
| CN203940840U (en) * | 2014-05-13 | 2014-11-12 | 湖北江汉石油仪器仪表股份有限公司 | Oil-extractor polish-rod displacement tester and the two-in-one sensor unit of displacement load |
| CN203978427U (en) * | 2014-07-31 | 2014-12-03 | 北京天翊嘉和科技有限公司 | Load displacement integrated wireless indicator |
| CN205102967U (en) * | 2015-11-06 | 2016-03-23 | 江西飞尚科技有限公司 | Can reduce sucker rod load transducer of unbalance loading error |
| US20170329311A1 (en) * | 2016-05-13 | 2017-11-16 | General Electric Company | Beam pumping unit and method of operation |
| CN206091968U (en) * | 2016-09-06 | 2017-04-12 | 中国石油化工股份有限公司 | Oil well indicator card sensor protecting device |
Non-Patent Citations (4)
| Title |
|---|
| 丁海涛: "抽油机无线监控系统的开发与应用" * |
| 于文刚，等: ""基于抽油机光杆形变的功图传感器的设计"" * |
| 张家珍: ""基于加速度传感器的示功图测试与分析系统研究"" * |
| 彭健，等: ""基于传感器技术的有杆抽油井示功仪的研究"" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761773A (en) * | 2019-09-23 | 2020-02-07 | 冯祎诺 | Device and method for monitoring running state of oil pumping unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101873349B (en) | The multinode real-time power consumption monitoring system in the environment of wireless sensor network | |
| CN103822667A (en) | Temperature-humidity acquisition system based on Bluetooth technology | |
| CN103293510A (en) | Device and method for quickly measuring errors of electric energy meter | |
| CN108505988A (en) | Using the oil-extractor polish-rod work(figure remote sensing instrument of diaphragm pressure sensor | |
| CN108825210A (en) | Integrated telemetering indicator based on baroceptor | |
| CN203350433U (en) | Device capable of rapidly determining error of electric energy meter | |
| CN105526967A (en) | Measuring equipment and system based on intelligent terminal | |
| CN203069733U (en) | A vibration-detection-based partial discharging point positioning device used for GIS tests | |
| CN202057736U (en) | Handheld power load control equipment fault detector | |
| CN204046266U (en) | A kind of AC and DC power measure and control device | |
| CN105675517A (en) | Portable equipment for rapid water quality detection and detection method | |
| CN210327154U (en) | Intelligent building electric energy monitoring system | |
| CN209387796U (en) | Superfrequency detection system based on crusing robot | |
| CN107228969A (en) | Multipurpose electric flow table and control method with different measurement accuracy | |
| CN204514283U (en) | A kind of leather surface roughness measuring instrument | |
| CN204129034U (en) | The integrated water quality monitoring sensor of the multi-functional multiparameter of water environment | |
| CN202870974U (en) | Novel integrated circuit (IC) card natural gas meter based on single chip microcomputer | |
| CN106931948A (en) | A kind of hydrological telemetry instrument | |
| CN108254140A (en) | Bridge Crack micrometering amount monitoring device | |
| CN206675518U (en) | A kind of heart rate sensor detection means | |
| CN214951796U (en) | Wireless Ultraviolet (UV) light source measuring device | |
| CN205192530U (en) | Integrated transducer | |
| CN220769442U (en) | Indicator suitable for slow-stroke pumping unit | |
| CN205212974U (en) | Intelligence vision agricultural monitored control system based on linux | |
| CN218937568U (en) | Sampling circuit for monitoring laser energy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191105 Address after: Ranghulu District Economic and Technological Development District of Heilongjiang city in Daqing province 163000 letter Street No. 19 Applicant after: Daqing Dannuo Petroleum Technology Development Co.,Ltd. Address before: 163316 room 1019, block B-1, service outsourcing park, hi tech Zone, Daqing, Heilongjiang. Applicant before: DAQING YIDONG TECHNOLOGY Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180907 |
|
| WD01 | Invention patent application deemed withdrawn after publication |