CN102323807A - Remote management device for oil field wells - Google Patents
Remote management device for oil field wells Download PDFInfo
- Publication number
- CN102323807A CN102323807A CN201110191851A CN201110191851A CN102323807A CN 102323807 A CN102323807 A CN 102323807A CN 201110191851 A CN201110191851 A CN 201110191851A CN 201110191851 A CN201110191851 A CN 201110191851A CN 102323807 A CN102323807 A CN 102323807A
- Authority
- CN
- China
- Prior art keywords
- module
- communication
- management device
- long
- oil
- 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
Images
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention provides a remote management device for oil field wells. The device comprises a remote sensing component and a remote monitoring component, wherein the remote sensing component and the remote monitoring component are communicated and connected with each other via wireless data; the remote sensing component comprises a containing box, the containing box is internally provided with a signal collecting module, the input end of the signal collecting module is connected with a main sensor module, and the output end of the signal collecting module is connected with a communication module; and the remote monitoring component comprises a containing box, the containing box is internally provided with a communication machine, the signal output end of the communication machine is connected with a real-time database server, and the control port of the communication machine is connected with a computer system module. Therefore, the device has the following advantages: the crude oil yield can be increased; oil wells can work in optimum conditions; the well patrolling cost and the labor intensity of workers are lowered; and the working efficiency of managers can be greatly improved.
Description
Technical field:
The present invention relates to a kind of long-distance management device that is used for oilfield.
Technical background:
The oil well management of China also is in the lower stage of manual intervention at present; The control system of oil well and signal acquiring system all are no more than in 500 meters control rooms in the scope leaving oil well basically, and the environment in well site is very abominable, needs manual regular to patrol well; Run into the atrocious weather condition; Patrol well work and be difficult to accomplish, and on-the-spot equipment breaks down and can not find the very first time and handle, the efficient of production is very low.
The oil exploitation of China also is in the mechanization state; A series of work such as the exploitation of oil, accumulating all need manual work at the scene through one by one independently the substation control and implement, both be not easy to the operation, be unfavorable for the collection and the storage of data again; And bring very big trouble to maintenance work; Can not satisfy informationization far away, digitized requirement, and developed countries such as America and Europe just realized the digitizing field management before 20 years; Policer operation is all carried out through wireless network in each substation in their oil field, has realized the information system management system of height.And the Oilfield Information system construction of China is just at the early-stage; The oilfield supervisory system is in state on the spot basically; The collection 95% of data relies on manual work to accomplish, so the Oilfield Information collection monitoring system device of exploitation China is the work with great economic benefit and social value.Wherein reason is following:
1., because oil well generally all is distributed in the very abominable field of environment, with control center at a distance of several kilometers even kilometer up to a hundred, Operation and Maintenance is very inconvenient; Especially run into heavy rain; Dust storm, in the time of atrocious weathers such as heavy snow, it is difficult more that the normal operation of equipment guarantees to become;
2., the electric-control system of oil well rig is general all on the limit of oil well, so need the people to go to the scene to open and stop, it is very inconvenient to operate, through regular meeting's delay time at stop;
3., equipment breaks down and can not pass through remote detection, reason that can not failure judgement causes equipment stopping for no reason producing or damage;
4., can not the real data of oil wells in field production in time be reacted to central control room like output, pressure, motor operating parameter etc.;
That 5., steals oily phenomenon can not get effectively checking system.
Summary of the invention:
The object of the invention is exactly the problems referred to above that exist in the prior art in order to solve, and a kind of long-distance management device that is used for oilfield is provided.
The object of the invention is realized through following technical scheme:
The long-distance management device of oilfield; Include remote sensing assembly and remote monitoring assembly; It is interconnected that described remote sensing assembly and remote monitoring assembly carry out communication through wireless data, and wherein: described remote sensing assembly includes accommodation box, is provided with the signal collection module in the described accommodation box; The input end of said signal collection module is connected with the master reference module, and the output terminal of said signal collection module is connected with communication module; Described remote monitoring assembly includes storage case, is provided with the communication machine in the described storage case, and the signal output part of said communication machine is connected with the real-time data base server, and the control port of said communication machine is connected with the computer system module.
In the long-distance management device of above-mentioned oilfield, described signal collection module is provided with auxiliary PORT COM, is connected with the assist control module on the described auxiliary PORT COM.
Further, in the long-distance management device of above-mentioned oilfield, monitoring browsing terminal module is installed on the described real-time data base server.
Further, in the long-distance management device of above-mentioned oilfield, described computer system module is provided with computing machine communication supplementary module.
Further, in the long-distance management device of above-mentioned oilfield, described storage case is provided with display, and the input end of said display connects the display port of computer system module.
Again further; In the long-distance management device of above-mentioned oilfield; Described sensor assembly includes temperature sensor module, pressure sensor module, machine current model, voltage sensor oil pumper load module, displacement sensor module, transformer primary side current sensor assembly, and each module is connected into the input end of signal collection module through communication bus.
The advantage of technical scheme of the present invention is mainly reflected in:
1., real-time digital monitoring and management are carried out in the oil well production scene; Can increase crude production rate: just be equivalent to increase crude production rate the fault-time that has shortened oil production equipment; Be unkitted before the monitoring; The staff is not on-site to be difficult to know equipment downtime or fault, can know in time that the output that the time that causes the equipment quickening to be resumed production owing in time taking measures increases can estimate after monitoring is installed.As: former every mouthful of well fault every year on average stopped well 20 days, shortened to 10 days after the installation supervisory system, by 10 tons of crude production rates calculating every day, was equivalent to increase by 100 tons of crude oil, increased by 300,000 output values approximately.Can also in time find to steal, destroy the situation of oil production equipment through this cover system.Can also make oil well be operated in optimum condition: through analysis to the data that collect; The staff not only can understand the history of oil well, current situation; And can analyze the recent situation of oil well, analysis and judgement more is to the in good time operation of oil well; Let oil well be operated in optimum condition, thereby reduce equipment attrition, reduction power consumption, increase output.
2., reduce the labour intensity that patrols well expense and staff: after this cover system was installed, the number of times that well is patrolled in manual work can significantly reduce, thereby can reduce the well expense of patrolling.Staff's labour intensity reduces greatly simultaneously, can not remove to patrol well at dust storm, weather extremely hot, severe cold.
3., managerial personnel's work efficiency can improve greatly: originally need the artificial form that do, click the mouse now and can generate, and data not have mistake consciously or unconsciously, the while has also reduced the loss of office equipment material.Data through collecting are made scientific analysis, can come more reasonably to recover the oil by long-range start and stop oil production equipment using electricity wisely and raising oil-production efficiency.
4., improve enterprise competitiveness: along with the development of electronic communication; The stability and the reliability of oil well supervisory system strengthen greatly; Oil well digitizing long distance control system is because its superiority, and will becoming reliable, requisite automated information means, to use new technology to increase work efficiency also be the requirement of economic and social benefit.
Description of drawings:
The object of the invention, advantage and characteristics will illustrate through the non-limitative illustration of following preferred embodiment and explain.These embodiment only are the prominent examples of using technical scheme of the present invention, and all technical schemes of taking to be equal to replacement or equivalent transformation and forming all drop within the scope of requirement protection of the present invention.In the middle of these accompanying drawings,
Fig. 1 is that the remote sensing assembly is connected synoptic diagram with the communication of remote monitoring assembly;
Fig. 2 is the organigram of the processing module of integrated form.
1 remote sensing assembly, 2 remote monitoring assemblies
3 signal collection modules, 4 master reference modules
5 communication modules, 6 communication machines
7 real-time data base servers, 8 computer system modules
9 assist control modules, 10 monitoring browsing terminal modules
11 computing machine communication supplementary modules, 12 displays
13 temperature sensor module, 14 pressure sensor modules
15 machine current model, 16 voltage sensor oil pumper load modules
17 displacement sensor module, 18 transformer primary side current sensor assemblies
Embodiment:
Like Fig. 1, shown in Figure 2; A kind of long-distance management device that is used for oilfield; Include remote sensing assembly 1 and remote monitoring assembly 2; It is interconnected that this remote sensing assembly 1 and remote monitoring assembly 2 carry out communication through wireless data, and its unusual part is: the remote sensing assembly 1 that the present invention adopted includes accommodation box, in accommodation box, is provided with signal collection module 3.Specifically, the input end of said signal collection module 3 is connected with master reference module 4, and the output terminal of signal collection module 3 is connected with communication module 5.
Further, remote monitoring assembly 2 includes storage case, in storage case, is provided with communication machine 6.Simultaneously, the signal output part of communication machine 6 is connected with real-time data base server 7, and the control port of said communication machine 6 is connected with computer system module 8.
With regard to the present invention's one preferred implementation, for signal collection is effectively filtered and controls, described signal collection module 3 is provided with auxiliary PORT COM, and on auxiliary PORT COM, is connected with assist control module 9.
Again further, consider in practical application and can carry out real-time monitoring data, simultaneously can be so that browsing of third party's trustship is equipped with monitoring browsing terminal module 10 on real-time data base server 7.Meanwhile, computer system module 8 is provided with computing machine communication supplementary module 11.Show various duties in order to cooperate, storage case is provided with display 12, and the input end of this display 12 connects the display port of computer system module 8.
And; In order to realize the most comprehensively monitoring; The master reference module 4 that the present invention adopted includes temperature sensor module 13, pressure sensor module 14, machine current model 15, voltage sensor oil pumper load module 16, displacement sensor module 17, transformer primary side current sensor assembly 18, and each module is connected into the input end of signal collection module 3 through communication bus.
In conjunction with actual operating position of the present invention, the oilfield duty is transformed into corresponding voltage or current value through sensor assembly and delivers to well head controller module or signal collection module 3.Through CDMA/GPRS net or data radio station, insert oil recovery factory's communication machine 6 then, data communication machine 6 adopts polling mode to collect the well head controller module data, and data are advanced oil recovery factory's real-time data base through analyzing after treatment.And, can regularly gather analysis and summary.
Voltage sensor oil pumper load module 16 converts the oil pumper useful load into electric signal, and displacement sensor module 17 converts the displacement signal in the oil pumper stroke procedure into electric signal.Meanwhile, can with the forceful electric power conversion of signals weak electric signal of 0～5V through high-accuracy voltage/current transformer; Gather special-purpose 16 the hybrid digital microprocessors of integrated chip low-power consumption of gathering, the A/D conversion accuracy is 12 (error＜± 0.0244%).Consider the facility of communication, the subsidiary communication interface circuit of each module provides RS232C, RS485, WLAN and four kinds of communication modes of GPRS, can be according to different demand flexible configuration.Certainly; For the ease of making and Installation and Debugging; Can adopt structure as shown in Figure 2 that the function of signal collection module 3 is integrated; Constitute the processing module of an integrated form, it is by signal interface circuit, signal conditioning circuit, collection special integrated chip, communication interface circuit, GPRS communication module 5 and several parts of power module.
And; Can rely on the subsidiary power management module that installs additional, provide each device required various power supplys, provide high capacity lithium ion battery and battery floating automatically towards function; Make the terminal module also can operate as normal when the oil pumper dead electricity, realize uninterruptedly monitoring and patrolling and examining work.
Be located at the signal (start that the remote monitoring assembly 2 control computer system modules 8 of central control room need be controlled the scene simultaneously; Shutdown; Speed setting; Parameter is provided with, fault handling etc.) send to on-the-spot communication module 5 through communication machine 6GPS, the controlled electric appliance element at scene is carried out remote wireless control.
On the whole; The computer system mould that remote monitoring assembly 2 adopts on WINDOWS NT platform base, utilize high level language supervisor control program will through the gprs system remote measurement to the RTU module parameter deposit in the network data base, supply engineer stations at different levels to carry out data analysis and handle.Equipment such as Surveillance center's configuration server, industrial computer, printer, ups power, receiver are connected with the oil field LAN through the oilfield internal channel, and field data sends to the Surveillance center that remote monitoring assembly 2 is laid through the GPRS mode.The computer system of Surveillance center's analysis station is mainly kept watch on the operating mode of each oil pumper, if the fault well is arranged then confirm that the fault well location puts and in monitoring figure, send sound and light alarm.Remote measurement is analyzed the well on the beam stroke cycle automatically, draws load-position diagram and analyzed the balance of well pumping unit situation to the well data of patrolling of each oil pumper, and propose to optimize balance adjustment suggestion etc., be beneficial to further precision management oil well.Simultaneously; Monitoring center system is patrolled and examined historical data to oil pumper and is managed; Realize function such as statistics, form, printing and have IIS (Internet information server) network information issuing function; Through can be on the LAN of oil field after the registration to the working condition of each oil pumper inquire about, browse and work such as printing, authority can be distributed to related management personnel such as production crew, oil recovery ore deposit, oil recovery factory.Data also can with other mis system interfaces of oil field, supply other mis systems to use.
In this computer system mould, use the special software and the GPRS wireless data sending terminal module that are fit to oil field technology and management, system wireless remote measuring and controlling main frame (RTU) is with the presence states of detected single port producing well; Send Surveillance center to through wireless mode; Thereby realize the Centralized Monitoring of each individual well state, the minimizing personnel drop into, strong shortening oil well fault discovery and eliminating time; Improved production efficiency greatly, the cost performance extra-high-speed of simultaneity factor.
Specifically when reality is used, can realize that the function of oil well information management is following:
1., draw rod-pumped well merit figure, continuous merit figure, stack merit figure drafting, map of current drafting, casing pressure, back pressure, temperature, three-phase current, unloading well oil pressure measurement latest data curve.
2., alert if is set, be saved in database automatically, possess query function,, send to the mobile phone of appointment for important warning for off-limits data according to actual conditions.
3., the data query function, can inquire about easily for historical data.
4., query function immediately, for the data that needs are in time known, send instruction and can fetch immediately.
5., the automatic systematic function of form, on the date that can select more, generate the EXCEL file of the measurement data of all oil wells on the same day automatically.
6., calculate the day output and the liquid level of individual well automatically for rod-pumped well.
7., the start and stop of control oil production equipment.
8., remote photographic, photo is dealt into mobile phone or mailbox.
9., the wellblock breaks in warning.
10., the various forms that need are provided.
Claims (6)
1. the long-distance management device of an oilfield; Include remote sensing assembly and remote monitoring assembly; It is interconnected that described remote sensing assembly and remote monitoring assembly carry out communication through wireless data, it is characterized in that: described remote sensing assembly includes accommodation box, is provided with the signal collection module in the described accommodation box; The input end of said signal collection module is connected with the master reference module, and the output terminal of said signal collection module is connected with communication module; Described remote monitoring assembly includes storage case, is provided with the communication machine in the described storage case, and the signal output part of said communication machine is connected with the real-time data base server, and the control port of said communication machine is connected with the computer system module.
2. the long-distance management device of oilfield according to claim 1, it is characterized in that: described signal collection module is provided with auxiliary PORT COM, is connected with the assist control module on the described auxiliary PORT COM.
3. the long-distance management device of oilfield according to claim 1 is characterized in that: monitoring browsing terminal module is installed on the described real-time data base server.
4. the long-distance management device of oilfield according to claim 1, it is characterized in that: described computer system module is provided with computing machine communication supplementary module.
5. the long-distance management device of oilfield according to claim 1, it is characterized in that: described storage case is provided with display, and the input end of said display connects the display port of computer system module.
6. the long-distance management device of oilfield according to claim 1; It is characterized in that: described sensor assembly includes temperature sensor module, pressure sensor module, machine current model, voltage sensor oil pumper load module, displacement sensor module, transformer primary side current sensor assembly, and each module is connected into the input end of signal collection module through communication bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110191851A CN102323807A (en) | 2011-07-10 | 2011-07-10 | Remote management device for oil field wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110191851A CN102323807A (en) | 2011-07-10 | 2011-07-10 | Remote management device for oil field wells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102323807A true CN102323807A (en) | 2012-01-18 |
Family
ID=45451557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110191851A Pending CN102323807A (en) | 2011-07-10 | 2011-07-10 | Remote management device for oil field wells |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102323807A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103544822A (en) * | 2012-07-12 | 2014-01-29 | 成都科盛石油科技有限公司 | Control system of oil-well work drive motor based on RTU (Remote Terminal Unit) |
| CN104110249A (en) * | 2014-07-07 | 2014-10-22 | 因为科技无锡有限公司 | Collecting and preprocessing system for status information of oil well |
| CN104238515A (en) * | 2014-09-11 | 2014-12-24 | 刘明 | Oil field operating area production remote data analysis method based on big data |
| CN104460609A (en) * | 2014-11-18 | 2015-03-25 | 中国石油天然气股份有限公司 | Remote monitoring method and system for oil and gas production |
| CN104481456A (en) * | 2014-10-27 | 2015-04-01 | 武汉至佳商贸有限公司 | Data transmission and security centralized control integrated device of oil field pilot production single well and method thereof |
| CN104597865A (en) * | 2014-11-28 | 2015-05-06 | 成都福立盟钻采设备有限公司 | Data acquisition unit for oil drilling device |
| CN104597858A (en) * | 2014-02-20 | 2015-05-06 | 李新华 | Management system and management method for oil field |
| CN104635681A (en) * | 2014-12-24 | 2015-05-20 | 深圳市远航机电有限公司 | Fuel oil monitoring system and method |
| CN104834263A (en) * | 2014-02-12 | 2015-08-12 | 洛克威尔自动控制亚太业务中心有限公司 | System and method for localized well analysis and control |
| CN109491341A (en) * | 2018-11-28 | 2019-03-19 | 北京迈斯康特测控技术有限公司 | Monitoring and data analysis system for oil field operation equipment |
| CN113093576A (en) * | 2021-04-09 | 2021-07-09 | 国网河北省电力有限公司沧州供电分公司 | Offshore oilfield information monitoring system and method based on shore power supply |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5064349A (en) * | 1990-02-22 | 1991-11-12 | Barton Industries, Inc. | Method of monitoring and controlling a pumped well |
| CN1854460A (en) * | 2005-04-25 | 2006-11-01 | 王宁 | Oil-well realtime monitoring system and its controlling method |
| CN101514627A (en) * | 2008-03-05 | 2009-08-26 | 中国科学院自动化研究所 | Remote monitoring system for oil well pressure by capillary steel pipes |
| CN101525994A (en) * | 2009-04-13 | 2009-09-09 | 北京龙鼎源科技有限公司 | Measuring and monitoring system for oil wellhead |
| CN202153309U (en) * | 2011-07-10 | 2012-02-29 | 常州联科电气成套设备有限公司 | Remote management device for oil well in oil field |
-
2011
- 2011-07-10 CN CN201110191851A patent/CN102323807A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5064349A (en) * | 1990-02-22 | 1991-11-12 | Barton Industries, Inc. | Method of monitoring and controlling a pumped well |
| CN1854460A (en) * | 2005-04-25 | 2006-11-01 | 王宁 | Oil-well realtime monitoring system and its controlling method |
| CN101514627A (en) * | 2008-03-05 | 2009-08-26 | 中国科学院自动化研究所 | Remote monitoring system for oil well pressure by capillary steel pipes |
| CN101525994A (en) * | 2009-04-13 | 2009-09-09 | 北京龙鼎源科技有限公司 | Measuring and monitoring system for oil wellhead |
| CN202153309U (en) * | 2011-07-10 | 2012-02-29 | 常州联科电气成套设备有限公司 | Remote management device for oil well in oil field |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103544822A (en) * | 2012-07-12 | 2014-01-29 | 成都科盛石油科技有限公司 | Control system of oil-well work drive motor based on RTU (Remote Terminal Unit) |
| CN104834263A (en) * | 2014-02-12 | 2015-08-12 | 洛克威尔自动控制亚太业务中心有限公司 | System and method for localized well analysis and control |
| US10072485B2 (en) | 2014-02-12 | 2018-09-11 | Rockwell Automation Asia Pacific Business Center Pte. Ltd. | Systems and methods for localized well analysis and control |
| CN104597858A (en) * | 2014-02-20 | 2015-05-06 | 李新华 | Management system and management method for oil field |
| CN104110249A (en) * | 2014-07-07 | 2014-10-22 | 因为科技无锡有限公司 | Collecting and preprocessing system for status information of oil well |
| CN104238515A (en) * | 2014-09-11 | 2014-12-24 | 刘明 | Oil field operating area production remote data analysis method based on big data |
| CN104481456A (en) * | 2014-10-27 | 2015-04-01 | 武汉至佳商贸有限公司 | Data transmission and security centralized control integrated device of oil field pilot production single well and method thereof |
| CN104460609A (en) * | 2014-11-18 | 2015-03-25 | 中国石油天然气股份有限公司 | Remote monitoring method and system for oil and gas production |
| CN104597865A (en) * | 2014-11-28 | 2015-05-06 | 成都福立盟钻采设备有限公司 | Data acquisition unit for oil drilling device |
| CN104635681A (en) * | 2014-12-24 | 2015-05-20 | 深圳市远航机电有限公司 | Fuel oil monitoring system and method |
| CN104635681B (en) * | 2014-12-24 | 2017-08-29 | 深圳市远航机电有限公司 | Fuel oil monitoring system and method |
| CN109491341A (en) * | 2018-11-28 | 2019-03-19 | 北京迈斯康特测控技术有限公司 | Monitoring and data analysis system for oil field operation equipment |
| CN109491341B (en) * | 2018-11-28 | 2021-04-13 | 北京迈斯康特测控技术有限公司 | Monitoring and data analysis system for oil field operation equipment |
| CN113093576A (en) * | 2021-04-09 | 2021-07-09 | 国网河北省电力有限公司沧州供电分公司 | Offshore oilfield information monitoring system and method based on shore power supply |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102323807A (en) | Remote management device for oil field wells | |
| CN103203277B (en) | Ball mill monitoring system based on smart cloud computing platform and monitoring method | |
| CN111142414B (en) | Intelligent power plant management and control system based on edge cloud cooperation | |
| CN202153309U (en) | Remote management device for oil well in oil field | |
| CN205305194U (en) | Street lamp automatic monitoring system | |
| CN104796082A (en) | System and method for diagnosing faults of photovoltaic power generation systems in online manner | |
| CN103576650A (en) | Operation security monitoring and managing system for airport ground equipment | |
| CN102841293B (en) | Fault positioning system for 10kV power distribution network circuit | |
| CN103092169B (en) | Digital camp apparatus management/control device | |
| CN203522340U (en) | Power consumption load monitoring system | |
| CN103017824B (en) | Use the monitoring system of robot measurement | |
| CN201830299U (en) | Wireless indicator data remote transmission system | |
| CN102968102B (en) | Remote monitoring device of trenchless drilling machine | |
| CN107290019A (en) | A kind of wireless watermeter system based on GSM | |
| CN202103858U (en) | Earth electrode online monitoring system | |
| CN201522555U (en) | Remote atmosphere parameter continuous real-time monitoring device | |
| CN104617668A (en) | System and method for remotely monitoring transformer substation storage battery | |
| CN105242610B (en) | A kind of ground wire supervisory systems and method | |
| CN202014263U (en) | Centralized monitoring system for power and environmental equipment of communication base station | |
| CN204131632U (en) | A kind of flood control rainwater feelings wireless monitor station | |
| CN202141778U (en) | Line fault positioner used for 10kV power distribution network | |
| CN202870598U (en) | Enterprise heat-supply network monitoring system employing industrial wireless WIA technology | |
| CN202166461U (en) | Remote monitoring system for river channel liquid levels | |
| CN104601646A (en) | Oilfield electric power intelligent analyzing and optimizing energy efficiency management system | |
| CN110035093A (en) | A kind of drainage pipeline networks real-time monitoring system Internet-based and monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120118 |