CN104601425A - B-S architecture multi-ring network redundancy nested ring integrated control system - Google Patents
B-S architecture multi-ring network redundancy nested ring integrated control system Download PDFInfo
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- 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
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Abstract
The invention discloses a B-S architecture multi-ring network redundancy nested ring integrated control system. The system comprises a terminal circular communication network NET1, a lower circular communication network NET2 and a lower redundancy circular communication network NET3. First ports of a first server and a second server are hung on an exchange ST1 of the network NET1, second ports are hung on an exchange ST2 of the network NET1, third ports are hung on exchanges SW1 and SW2 of the network NET2, and fourth ports are hung on exchanges SP1 and SP2 of the network NET3. The ends of a Web server and a historical data server are hung on the exchange ST1 of the NET1, and the other ends are hung on the exchange ST2 of the network NET1. By means of the system, an automatic, intelligent and network platform is built, and multi-system integrated management, monitoring, control and automatic protection of the rig is achieved.
Description
Technical field
The invention belongs to petroleum industry technical field of automatic control, relate to a kind of rig integrated control system nested based on B-S framework multi-ring network redundancy.
Background technology
Rig is maximum, topmost equipment in each large plant equipment of oil-gas exploration and development, the drilling level of rig decides the ability of oil development, along with the development of petroleum industry, the automation of rig and intellectuality are had higher requirement, operating efficiency, personal security and energy-conserving and environment-protective become current theme, and following drilling well also will towards long-range, unmanned future development.
Current most domestic drilling equipment control system is relatively backward, and automation, intelligence degree are low, make personnel depaly many, and labour intensity is very large, and operating efficiency is lower, and personnel's job safety is not protected completely, haves much room for improvement in environmental protection.
Although external drilling well has entered the intelligent drilling stage, major part achieves automation, the intellectuality of rig, but its purchase cost is high, safeguard that instructions for use is high, in the time between failures etc. of the redundant configuration of the control strategy optimization of the response speed of system, system, system, system survivability, equipment, there is a lot of deficiencies in addition, be badly in need of improving.
Summary of the invention
The object of this invention is to provide a kind of rig integrated control system nested based on B-S framework multi-ring network redundancy, solve intelligent rig of the prior art and can't meet the problem of actual needs at the time between failures of the redundant configuration of the control strategy optimization of the response speed of system, system, system, system survivability, equipment.
The technical solution adopted in the present invention is, a kind of rig integrated control system nested based on B-S framework multi-ring network redundancy, comprise terminal annular communication network NET1, the next annular communication network NET2 and the next redundancy annular communication network NET3, below respectively referred to as NET1 network, NET2 looped network and NET3 looped network, NET1 network is wherein called master system, and NET3 looped network is called lower computer system together with NET2 looped network;
NET1 network comprises switch ST1 and ST2; NET2 looped network comprises switch SN2, SN4, SW1, SW2 ... SWn; NET3 looped network comprises switch SN1, SN3, SP1, SP2 ... SPn;
Also comprise server one and server two, server one and server two are articulated on the switch ST1 of NET1 network respectively by signal and communication circuit T1a and T1b, meanwhile, server one and server two are articulated on the switch ST2 of NET1 network respectively by signal and communication circuit T2a and T2b; Server one and server two are articulated on switch SW1 and SW2 of NET2 looped network respectively by signal and communication circuit W1a and W2a correspondence; Server one and server two are articulated on switch SP1 and SP2 of NET3 looped network respectively by signal and communication circuit P1a and P2a correspondence;
Also comprise Web server and historic data server, Web server and historic data server are articulated on the switch ST1 of NET1 network respectively by signal and communication circuit T1e and T1f correspondence, and Web server and historic data server are articulated on the switch ST2 of NET1 network respectively by signal and communication circuit T2e and T2f correspondence.
The rig integrated control system nested based on B-S framework multi-ring network redundancy of the present invention, is further characterized in that:
Also comprise engineer station one and engineer station two, engineer station one and engineer station two are articulated on the switch ST1 of NET1 network respectively by signal and communication circuit T1c and T1d correspondence, and engineer station one and engineer station two are articulated on the switch ST2 of NET1 network respectively by signal and communication circuit T2c and T2d correspondence; Engineer station one and engineer station two are articulated on switch SW1 and SW2 of NET2 looped network respectively by signal and communication circuit W1b and W2b correspondence; Engineer station one and engineer station two are articulated on switch SP1 and SP2 of NET3 looped network respectively by signal and communication circuit P1b and P2b correspondence.
Also comprise operator station one and operator station two, operator station one and operator station two are articulated on the switch ST1 of NET1 network respectively by signal and communication circuit T1g and T1h correspondence, and operator station one and operator station two are articulated on the switch ST2 of NET1 network respectively by signal and communication circuit T2g and T2h correspondence.
Also comprise the display terminal one, display terminal two, display terminal three, the display terminal four that adopt touch screen structure, display terminal one and display terminal two are articulated on the switch ST1 of NET1 network respectively by signal and communication circuit T1i and T1j correspondence; Display terminal three and display terminal four are articulated on the switch ST2 of NET1 network respectively by by signal and communication circuit T2i and T2j correspondence.
Also comprise field control station one, field control station two, field control station three, on-the-spot Redundant Control station one and field control station N, field control station one, field control station two, field control station three and field control station N are articulated on switch SP3, SP4, SP5, SPn of NET3 looped network respectively by signal and communication circuit P3, P4, P5, Pn correspondence, and field control station one, field control station two, field control station three and field control station N are articulated on switch SW3, SW4, SW5, SWn of NET2 looped network respectively by signal and communication circuit W3, W4, W5, Wn correspondence; On-the-spot Redundant Control station one is articulated on switch SP6 and SP7 of NET3 looped network respectively by signal and communication circuit P6 and P7 correspondence, and on-the-spot Redundant Control station one is articulated on switch SW6 and SW7 of NET2 looped network respectively by signal and communication circuit W6 and W7 correspondence.
The invention has the beneficial effects as follows, based on B-S framework multi-ring network redundancy nested mode, the platform of the automation for intelligent drilling system building, intellectuality, networking, achieve the integrated management of the multiple system of drilling well, monitor set, control, automatically protection and one, achieve the coordinated operation between each subset and operation; And support telemanagement and the issue of well system, transmitting-receiving and the management of facility information, instruction in each subring is achieved by building multiple looped network, information sharing and the coordination of multiple looped network is achieved by looped network coupling, by the looped network stability, reliability and the redundancy fault-tolerant ability that improve system nested with redundancy, the uninterrupted operation of equipment can be guaranteed, even if multiple equipment and many communication network faults still can be run by Guarantee control system in system, complete relevant operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of rig integrated control system of the present invention;
Fig. 2 is the network topological diagram of rig integrated control system of the present invention.
In figure, 1. server one, 2. server two, 3. engineer station one, 4. engineer station two, 5.Web server, 6. historic data server, 7. operator station one, 8. operator station two, 9. display terminal one, 10. display terminal two, 11. display terminals three, 12. display terminal four, 13. field control station one, 14. field control stations two, 15. field control station three, 16. on-the-spot Redundant Control station one, 17. field control station N.
In addition, NET1 represents terminal annular communication network;
NET2 represents the next annular communication network;
NET3 represents the next redundancy annular communication network;
SW1, SW2 ... SWn represents the fiber optic Ethernet switch of multiport respectively;
SP1, SP2 ... SPn represents the fiber optic Ethernet switch of redundant looped network multiport respectively;
SN1, SN2, SN3, SN4 represent the fiber optic Ethernet switch of looped network coupling multiport respectively;
ST1, ST2 represent the fiber optic Ethernet switch of terminal looped network multiport respectively;
W1a, W1b, W2a, W2b represent that server and engineer station are articulated to the communication network on looped network NET2 respectively;
W3, W4 ... Wn represents that each control station on-the-spot is articulated to the data communication network on looped network NET2 respectively;
P1a, P1b, P2a, P2b represent that server and engineer station are articulated to the communication network on looped network NET3 respectively;
P3, P4 ... Pn represents that each control station on-the-spot is articulated to the data communication network on looped network NET3 respectively;
N1, N2 represent the looped network coupling communication network of the next NET2 looped network and NET3 looped network respectively;
T1a, T1b, T1c ... T1j represents the data communication networking of all kinds of server, work station, operator station and man-machine interface etc. and ST1 switch in terminal looped network respectively;
T2a, T2b, T2c ... T2j represents the data communication networking of upper server, operator station and man-machine interface etc. and redundancy switch ST2 in terminal looped network respectively.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
With reference to Fig. 1, the structure of integrated control system of the present invention is, comprise terminal annular communication network NET1, the next annular communication network NET2 and the next redundancy annular communication network NET3, below respectively referred to as NET1 network, NET2 looped network and NET3 looped network, NET1 network is wherein called master system, and NET3 looped network is called lower computer system together with NET2 looped network;
NET1 network comprises switch ST1 and ST2, and switch ST1 and ST2 interconnects (parallel join) mutually; NET2 looped network comprises switch SN2, SN4, SW1, SW2 ... SWn, switch SN2, SN4, SW1, SW2 ... SWn interconnects successively (parallel join); NET3 looped network comprises switch SN1, SN3, SP1, SP2 of interconnecting successively ... SPn, switch SN1, SN3, SP1, SP2 ... SPn interconnects successively (parallel join);
Integrated control system also comprises server 1 and server 22, server 1 and server 22 are ties that master system is connected with lower computer system, server 1 and server 22 are articulated on the switch ST1 of NET1 network respectively by signal and communication circuit T1a and T1b, meanwhile, server 1 and server 22 are articulated on the switch ST2 of NET1 network respectively by signal and communication circuit T2a and T2b; Server 1 and server 22 are articulated on switch SW1 and SW2 of NET2 looped network respectively by signal and communication circuit W1a and W2a correspondence; Server 1 and server 22 are articulated on switch SP1 and SP2 of NET3 looped network respectively by signal and communication circuit P1a and P2a correspondence;
Integrated control system also comprises engineer station 1 and engineer station 24, engineer station 1 and engineer station 24 are articulated on the switch ST1 of NET1 network respectively by signal and communication circuit T1c and T1d correspondence, and engineer station 1 and engineer station 24 are articulated on the switch ST2 of NET1 network respectively by signal and communication circuit T2c and T2d correspondence; Engineer station 1 and engineer station 24 are articulated on switch SW1 and SW2 of NET2 looped network respectively by signal and communication circuit W1b and W2b correspondence; Engineer station 1 and engineer station 24 are articulated on switch SP1 and SP2 of NET3 looped network respectively by signal and communication circuit P1b and P2b correspondence;
Integrated control system also comprises Web server 5 and historic data server 6, Web server 5 and historic data server 6 are articulated on the switch ST1 of NET1 network respectively by signal and communication circuit T1e and T1f correspondence, and Web server 5 and historic data server 6 are articulated on the switch ST2 of NET1 network respectively by signal and communication circuit T2e and T2f correspondence;
Integrated control system also comprises operator station 1 and operator station 28, and (these two stations as required can parallel running, possesses standby functions each other) simultaneously, operator station 1 and operator station 28 are articulated on the switch ST1 of NET1 network respectively by signal and communication circuit T1g and T1h correspondence, and operator station 1 and operator station 28 are articulated on the switch ST2 of NET1 network respectively by signal and communication circuit T2g and T2h correspondence;
Integrated control system also comprises the display terminal 1, display terminal 2 10, display terminal 3 11, the display terminal 4 12 that adopt touch screen structure, and display terminal 1 and display terminal 2 10 are articulated on the switch ST1 of NET1 network respectively by signal and communication circuit T1i and T1j correspondence; Display terminal 3 11 and display terminal 4 12 are respectively by being articulated on the switch ST2 of NET1 network by signal and communication circuit T2i and T2j correspondence;
Integrated control system also comprises field control station 1, field control station 2 14, field control station 3 15, on-the-spot Redundant Control station 1 and field control station N 17, field control station 1, field control station 2 14, field control station 3 15 and field control station N17 are respectively by signal and communication circuit P3, P4, P5, Pn correspondence is articulated in the switch SP3 of NET3 looped network, SP4, SP5, on SPn, field control station 1, field control station 2 14, field control station 3 15 and field control station N17 are respectively by signal and communication circuit W3, W4, W5, Wn correspondence is articulated in the switch SW3 of NET2 looped network, SW4, SW5, on SWn, on-the-spot Redundant Control station 1 is articulated on switch SP6 and SP7 of NET3 looped network respectively by signal and communication circuit P6 and P7 correspondence, and on-the-spot Redundant Control station 1 is articulated on switch SW6 and SW7 of NET2 looped network respectively by signal and communication circuit W6 and W7 correspondence.
The present invention, by the connection networking of above all parts, namely constitutes based on the nested rig integrated control system of B-S framework multi-ring network redundancy.In actual applications, the quantity of field control station can be expanded according to demand, and can increase and decrease the quantity of field control station according to actual demand, the quantity at on-the-spot Redundant Control station can configure multiple.
With reference to Fig. 2, the composition of integrated control system embodiment is, comprise server 1, server 22, engineer station 1, engineer station 24, Web server 5, historic data server 6, operator station 1, operator station 28, display terminal 1, display terminal 2 10, display terminal 3 11, display terminal 4 12, field control station 1, field control station 2 14, field control station 3 15, on-the-spot Redundant Control station 1, field control station N 17, NET1 network, NET2 looped network, NET3 looped network, fiber optic Ethernet switch (the SW1 of multiport, SW2 ... SWn, SP1, SP2 ... SPn, SN1, SN2, SN3, SN4, and ST1, ST2), and multiple unit communications circuit composition, below various piece formation and function are set forth respectively.
SVR01 and SVR02 in server 1 and server 22 corresponding diagram 2, SVR01 and SVR02 is the core component of this integrated control system, to on be connected with master system, be connected with lower computer system lower, the connection tie of whole system, the communication in realization between the next system, data management and cooperation control.Server 1, both servers 22 configure identical, for subsequent use each other, the data message of two servers backs up mutually, during normal work, a wherein station server job, another is in hot standby state, to back up in realtime the data of workspace server, when workspace server breaks down, system automatically switches to hot standby state server by control program, has taken over every data management and communication task, each server is equipped with multiple ethernet communication network interface card, to realize being articulated on NET1 network, NET2 looped network and NET3 looped network.
ES01 and ES02 in engineer station 1 and engineer station 24 corresponding diagram 2, ES01 and ES02 is used for monitoring, administers and maintains server 1 and server 22, to above completing the communication with NET1 network, to the lower communication that can complete with NET2 looped network and NET3 looped network.Engineer station 1 and engineer station 24 not have too high requirement to configuration, can increase the quantity of engineer station as required or select not to be equipped with when building integrated control system, all can not the complete and use of influential system.
WEB01 in Web server 5 corresponding diagram 2, WEB01 is the webserver, is the important component part realizing system B-S framework, under this configuration, user interface is realized by WWW browser completely, and a part of the affair logic realizes in front end, and major affairs logic realizes at server end; Browser carries out data interaction by Web Server with database, realizes telemanagement and the issue of well system.
HP01 in historic data server 6 corresponding diagram 2, HP01 is historic data server, for the historical data management of a whole set of integrated control system, is convenient to historical data playback and the inquiry of system.
CLT01 and CLT02 in operator station 1 and operator station 28 corresponding diagram 2, CLT01 and CLT02 is mainly used in monitoring, administers and maintains Web server 5 and historic data server 6, complete the communication with NET1 network, operator station 1 and operator station 28 do not have too high requirement to configuration, the quantity of operator station can be increased when building integrated control system as required or select not to be equipped with, all can not influential system complete and using.
HMI1, HMI2, HMI3, HMI4 in display terminal 1, display terminal 2 10, display terminal 3 11, display terminal 4 12 difference corresponding diagram 2, HMI1, HMI2 correspondence is wherein articulated on switch ST1, and HMI3, HMI4 correspondence is articulated on switch ST2.Can realize managing Web server 5 and historic data server 6 and showing as the monitoring and maintenance terminal of being with touch function.
Station 1, Station 2, Station 3, Redundant 1 in field control station 1, field control station 2 14, field control station 3 15, on-the-spot Redundant Control station 1 and field control station N17 difference corresponding diagram 2 ... Station n; Station 1, Station 2, Station 3, Redundant 1 ... Station n is the control station that each equipment on-the-spot is corresponding; for running unit equipment control logic, interlock protection supervisor, realize the intelligent management to unit equipment.Because each equipment adopts independently control station monitoring, can the mounting on looped network be realized easily and remove, make the system integration more flexibly, conveniently.Wherein on-the-spot Redundant Control station 1 inherently one band redundancy feature control station, one is hot standby with one, for the monitor and forecast of the key equipment in system.Present system illustrates integrated control system to be equipped with multiple control station example, can extend to more than 50 website in actual use, build larger net control.
NET1 network is set up by switch ST1, ST2, this redundant looped network achieves the communication of master system terminal, any one communication line wherein in any one exchange fault or looped network disconnects, all do not affect the communication of host computer and slave computer, the normal uninterrupted operation of whole integrated system can be ensured, thus improve stability and the reliability of system greatly.
NET2 looped network and NET3 looped network are the annular communication network of lower computer system, wherein the exchange fault in any one looped network or any one communication line in any one looped network disconnect, all do not affect the communication of host computer and slave computer, the normal uninterrupted operation of whole integrated system can be ensured, it is nested that NET2 looped network and NET3 looped network yet forms both multi-ring network redundancy, thus well can ensure the reliable operation of the real-time online of the control station of field level.
The fiber optic Ethernet switch SP1 of redundant looped network multiport, SP2 ... the fiber optic Ethernet switch SW1 of SPn and multiport, SW2 ... the corresponding type selecting of SWn is consistent, for subsequent use each other, by the fiber optic Ethernet switch SN1 of looped network coupling multiport, SN2, SN3, SN4 achieves the nested communication of redundancy of two looped networks, during normal communication operation SN1 and SN2 switch and between communication cable achieve the communication of two looped networks, SN3 and SN4 switch and between the network built of communication cable as hot standby, realize redundancy feature, the redundancy coupling of two looped networks can be realized by writing corresponding control program, the redundancy achieving multi-ring network is nested.
In sum, the present invention is based on the rig integrated control system that B-S framework multi-ring network redundancy is nested, the mode of employing ETHERNET communication realizes the communication between unit, ensure that the transmission rate of enough bandwidth sum signals; By the redundancy Nesting Technique of multi-ring network, ensure that wherein individual plants fault or communicating interrupt not influential system normally run; By building multiple looped network, achieve transmitting-receiving and the management of facility information, instruction in each subring; The Coordinated Communication of multiple looped network is achieved by looped network coupling; By server redundancy configuration, the looped network stability, reliability and the redundancy fault-tolerant ability that improve system nested with redundancy; the platform of the automation for intelligent drilling system building, intellectuality, networking, achieves the integrated management of the multiple system of drilling well, monitoring, control and automatically protects.
The high speed communication that the present invention adopts the mode of ETHERNET communication to realize between unit, facility information in each subring is achieved by building multiple looped network, the transmitting-receiving of instruction and management, the coordination of multiple looped network is achieved by looped network coupling, by the redundancy Nesting Technique of multi-ring network, ensure that wherein individual plants fault or communicating interrupt not influential system normally run the stability of raising system, reliability and redundancy fault-tolerant ability, the automation for intelligent drilling system building, intelligent, the platform of networking, achieve the integrated management of the multiple system of drilling well, monitoring, control and protection automatically.
Claims (5)
1. one kind based on the nested rig integrated control system of B-S framework multi-ring network redundancy, it is characterized in that: comprise terminal annular communication network NET1, the next annular communication network NET2 and the next redundancy annular communication network NET3, below respectively referred to as NET1 network, NET2 looped network and NET3 looped network, NET1 network is wherein called master system, and NET3 looped network is called lower computer system together with NET2 looped network;
NET1 network comprises switch ST1 and ST2; NET2 looped network comprises switch SN2, SN4, SW1, SW2 ... SWn; NET3 looped network comprises switch SN1, SN3, SP1, SP2 ... SPn;
Also comprise server one (1) and server two (2), server one (1) and server two (2) are articulated on the switch ST1 of NET1 network respectively by signal and communication circuit T1a and T1b, meanwhile, server one (1) and server two (2) are articulated on the switch ST2 of NET1 network respectively by signal and communication circuit T2a and T2b; Server one (1) and server two (2) are articulated on switch SW1 and SW2 of NET2 looped network respectively by signal and communication circuit W1a and W2a correspondence; Server one (1) and server two (2) are articulated on switch SP1 and SP2 of NET3 looped network respectively by signal and communication circuit P1a and P2a correspondence;
Also comprise Web server (5) and historic data server (6), Web server (5) and historic data server (6) are articulated on the switch ST1 of NET1 network respectively by signal and communication circuit T1e and T1f correspondence, and Web server (5) and historic data server (6) are articulated on the switch ST2 of NET1 network respectively by signal and communication circuit T2e and T2f correspondence.
2. the rig integrated control system nested based on B-S framework multi-ring network redundancy according to claim 1, it is characterized in that: also comprise engineer station one (3) and engineer station two (4), engineer station one (3) and engineer station two (4) are articulated on the switch ST1 of NET1 network respectively by signal and communication circuit T1c and T1d correspondence, and engineer station one (3) and engineer station two (4) are articulated on the switch ST2 of NET1 network respectively by signal and communication circuit T2c and T2d correspondence; Engineer station one (3) and engineer station two (4) are articulated on switch SW1 and SW2 of NET2 looped network respectively by signal and communication circuit W1b and W2b correspondence; Engineer station one (3) and engineer station two (4) are articulated on switch SP1 and SP2 of NET3 looped network respectively by signal and communication circuit P1b and P2b correspondence.
3. the rig integrated control system nested based on B-S framework multi-ring network redundancy according to claim 1, it is characterized in that: also comprise operator station one (7) and operator station two (8), operator station one (7) and operator station two (8) are articulated on the switch ST1 of NET1 network respectively by signal and communication circuit T1g and T1h correspondence, and operator station one (7) and operator station two (8) are articulated on the switch ST2 of NET1 network respectively by signal and communication circuit T2g and T2h correspondence.
4. the rig integrated control system nested based on B-S framework multi-ring network redundancy according to claim 1, it is characterized in that: also comprise the display terminal one (9), display terminal two (10), display terminal three (11), the display terminal four (12) that adopt touch screen structure, display terminal one (9) and display terminal two (10) are articulated on the switch ST1 of NET1 network respectively by signal and communication circuit T1i and T1j correspondence; Display terminal three (11) and display terminal four (12) are articulated on the switch ST2 of NET1 network respectively by by signal and communication circuit T2i and T2j correspondence.
5. the rig integrated control system nested based on B-S framework multi-ring network redundancy according to claim 1, it is characterized in that: also comprise field control station one (13), field control station two (14), field control station three (15), on-the-spot Redundant Control station one (16) and field control station N (17), field control station one (13), field control station two (14), field control station three (15) and field control station N (17) are respectively by signal and communication circuit P3, P4, P5, Pn correspondence is articulated in the switch SP3 of NET3 looped network, SP4, SP5, on SPn, field control station one (13), field control station two (14), field control station three (15) and field control station N (17) are respectively by signal and communication circuit W3, W4, W5, Wn correspondence is articulated in the switch SW3 of NET2 looped network, SW4, SW5, on SWn, on-the-spot Redundant Control station one (16) is articulated on switch SP6 and SP7 of NET3 looped network respectively by signal and communication circuit P6 and P7 correspondence, and on-the-spot Redundant Control station one (16) is articulated on switch SW6 and SW7 of NET2 looped network respectively by signal and communication circuit W6 and W7 correspondence.
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| CN103955198A (en) * | 2014-05-15 | 2014-07-30 | 中国石油大学(华东) | Marine petroleum drilling machine integrated network redundancy monitoring system |
| CN203849604U (en) * | 2014-05-15 | 2014-09-24 | 中国石油大学(华东) | Integrated network redundancy monitor system for marine oil drilling machine |
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| CN108011699A (en) * | 2017-12-20 | 2018-05-08 | 中国原子能科学研究院 | reactor computer monitoring system network architecture method |
| CN108508740A (en) * | 2018-04-25 | 2018-09-07 | 海南金海浆纸业有限公司 | A kind of integrated automation control system having redundancy feature |
| CN112506042A (en) * | 2020-11-30 | 2021-03-16 | 北京坤腾电气有限公司 | Oil-well rig control system based on B/S structure |
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