CN211860104U - Offshore oilfield mobile communication fusion system - Google Patents
Offshore oilfield mobile communication fusion system Download PDFInfo
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- CN211860104U CN211860104U CN202020397579.0U CN202020397579U CN211860104U CN 211860104 U CN211860104 U CN 211860104U CN 202020397579 U CN202020397579 U CN 202020397579U CN 211860104 U CN211860104 U CN 211860104U
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Abstract
The utility model discloses a marine oil field mobile communication fuses system, including the communication network layer that satellite network and LTE network are constituteed, still include network access layer and application service layer, wherein network access layer comprises autonomic switching module and network switch, and autonomic switching module is used for realizing autonomic or manual switching into satellite network or LTE network. LTE networks may use unicom, mobile, or telecommunications; when the satellite network and the LTE network are simultaneously unblocked, the LTE network link is preferably selected; when the mobile equipment in the application service layer enters an LTE network signal coverage sea area, the mobile equipment is autonomously switched to an LTE link; when entering an area uncovered by LTE network signals, the system is switched back to the satellite link from the LTE link, the switching time cannot exceed 60 seconds, and the packet loss rate of link communication is guaranteed to be less than or equal to 0.1% in the whole switching process.
Description
Technical Field
The utility model belongs to the technical field of marine mobile communication, especially, relate to a marine oil field fuses mobile communication system based on mobile communication network fuses technique, solve the data transmission problem of marine oil field mobile facilities, for marine oil field mobile facilities provides transmission channel, make marine wide and narrow band fusion network.
Background
The offshore oil field has a plurality of mobile facilities, the voice and data communication capacity between the mobile facilities or between the mobile facilities and the land, the wide area network and other multimedia communication capacity are enhanced, the informatization level and the working efficiency of offshore operation are favorably improved, the safety of offshore operation is improved, and the trend is a necessary trend that the information highway extends to the sea. With the continuous development of marine services, ships need to be conveniently and effectively supported for communication and services. However, since the access of a marine mobile vessel still lacks an effective means, the effective communication of the vessel is still a significant shorthand for the informatization of marine operations. Particularly, most ships are still in the age of original single-side band short-wave radio stations, and no effective communication means exists. Although some ships have satellites as transmission means, the terminal equipment purchase cost, maintenance update cost and communication cost of the satellites are high, so that the use range of users is limited. Meanwhile, the current satellite transmission methods have some disadvantages, mainly including: the communication blind area exists, the error rate is high, the construction cost is high, and the like. Therefore, how to ensure that the mobile users of the offshore oilfield mobile facilities can ensure effective communication quality in any area and obtain various information service applications required by safe operation and production becomes a problem to be solved at present.
On the application level of the information service of the mobile facility, on one hand, due to the lack of an effective transmission means, some existing application systems of the ship are not well applied, on the other hand, due to the lack of a transmission link, production data and industrial control data of the ship are both carried out in a manual copying and sending mode, time and energy are wasted, timeliness and accuracy are poor, and therefore a low-cost and reliable data transmission means is urgently needed to promote production informatization application of the ship. Meanwhile, with the diversification of the types of marine operation services and the expansion of the data transmission demand, a communication mode with large bandwidth and high speed is urgently needed to meet the increasing demands of data return, emergency communication and the like. In addition, the life and work of ship-resident personnel are relatively monotonous, and the requirements of acquiring real-time information on the Internet, communicating with family members and shore-based communication and enriching the industrial and cultural life by applying various media are further met through abundant communication means.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming not enough among the prior art, to the communication demand of offshore oil field mobile device large capacity, high stability, solve the data fusion problem of offshore oil field mobile device to fuse the test to the information-based service system of boats and ships, form an offshore oil field mobile communication network and fuse the system, provide the communication network of offshore oil field mobile device and fuse the solution.
The utility model aims at realizing through the following technical scheme:
a mobile communication fusion system for offshore oilfields comprises a communication network layer consisting of a satellite network and an LTE network, a network access layer and an application service layer, wherein the network access layer consists of an autonomous switching module and a network switch, a network monitoring module is arranged in the autonomous switching module, and the autonomous switching module is used for realizing autonomous or manual switching to the satellite network or the LTE network and communicating the switched corresponding network with the application service layer through the network switch.
Further, LTE networks may use unicom, mobile, or telecommunications; when the satellite network and the LTE network are simultaneously unblocked, the LTE network link is preferably selected; when the mobile equipment in the application service layer enters an LTE network signal coverage sea area, the mobile equipment is autonomously switched to an LTE link; when entering an area uncovered by LTE network signals, the system is switched back to the satellite link from the LTE link, the switching time cannot exceed 60 seconds, and the packet loss rate of link communication is guaranteed to be less than or equal to 0.1% in the whole switching process.
Compared with the prior art, the utility model discloses a beneficial effect that technical scheme brought is:
1. the utility model discloses the system fusion has LTE network and satellite network, can realize that manual switching double link, single link switch the function, and two kinds of link forms all can normally work, and packet loss rate, stability are all normal, and can prefer to choose for use LTE wireless network link when the double link of system is unblocked simultaneously. When the ship mobile facility enters an LTE network signal coverage sea area, the ship is autonomously switched to the LTE link, and the auxiliary link is switched to the main link to realize seamless switching. When the system enters an LTE network signal uncovered area, the LTE link is switched back to the satellite link, the switching time cannot exceed 60 seconds, the whole switching process ensures that the link communication packet loss rate is not more than 0.1%, and the LTE network can use three networks of Unicom, Mobile and telecom. Furthermore, the utility model discloses the system can ensure smooth and easy stability of link, still can ensure the link on the satellite channel when especially being in LTE network signal edge area, ensures communication quality, and the packet loss rate is not more than 0.1%, and each item business homoenergetic normal operating of system.
2. There are multiple communication resources to present marine, but all are independent operation basically, lack the current situation that the whole integration of multisystem, the utility model discloses the system has solved many sets of communication system's whole integration problem, through the advantage condition of integrating marine large bandwidth high rate network resource promptly, solves communication resource utilization rate low problem, satisfies boats and ships user communication demand intensification.
3. It is with high costs to be different from current marine satellite system, and the automatic tracking antenna is with high costs, the expense circumstances such as expensive, the utility model discloses the high satellite expense problem can be solved to the system, user's expense is reduced.
4. The utility model discloses the system synthesizes wide narrow band network and uses, carries out the customization design to different scenes, can solve single system, the single problem of business, satisfies the business needs under the different scenes, promotes quality of service, promotes the industrialization intelligence level.
Drawings
Fig. 1 is a schematic diagram of a layered framework structure of the system of the present invention.
Fig. 2 is a schematic diagram of a specific frame structure of the system of the present invention.
Fig. 3 is a schematic diagram of the switching process of the autonomous switching module in the system of the present invention.
Fig. 4 is a schematic diagram of the framework inside the autonomous switching module.
Fig. 5a to 5c are schematic diagrams of basic parameters of the autonomous handover module.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. (Note: the specific embodiments described herein are for the purpose of illustration only and are not to be construed as limitations.)
The utility model discloses to the communication demand of offshore oil field mobile facilities large capacity, high stability, solve offshore oil field mobile facilities's data fusion problem to fuse the test to the information-based service system of boats and ships, finally set up one set of offshore oil field mobile communication network and fuse the system, form offshore oil field mobile facilities's communication network and fuse the solution.
The utility model discloses the design of system is as follows: because the existing offshore network resources are limited, the cost of a ship satellite communication system is high, the bandwidth is limited, a certain range limitation exists, and the offshore LTE wireless coverage system has the region limitation depending on a platform base station.
1. The existing link resources on the sea are fully utilized, different bottom transmission links are used for uniformly transmitting IP data, transparent transmission of upper data is achieved, differences of the links are ignored, and link integration is completed.
2. Through the rapid link signal based on the IP link and the network performance detection, the link priority judgment is solved, and the link is optimally selected.
3. Link integration based on IP is beneficial to constructing a strong communication network, realizing efficient autonomous switching of two communication modes of an optimal LTE network and a satellite network, guaranteeing smooth seamless connection of communication links, guaranteeing the communication service quality of ships, guaranteeing the communication effect and greatly improving the integrity of a marine communication system.
Through the integration of LTE network coverage and a satellite network, after the high-efficiency operation of the integration system on the offshore oilfield mobile facility is realized, the integration of a wider communication system is explored in combination with service requirements, a service packaging product with high integration performance and strong professional performance is formed, and the innovation of a service operation mode is driven by an integrated service product. Meanwhile, the problems of interfaces among all sub-modules, network access forms of offshore mobile facilities, compatibility and the like are solved, and the system is in butt joint with the existing system (systems such as voice telephone, office application, weather, video monitoring, video conference, positioning, oil consumption, remote talkback, individual video, Internet of things and the like).
The utility model discloses communication system after fusing can effectively integrate offshore oil field network resource advantage condition, solves boats and ships communication problem, satisfies boats and ships user communication demand to help solving the high satellite expense problem, reduce user's expense. The system construction is based on the characteristics of flexibility, expandability, strong universality and the like, and a communication system layered framework which is based on network coverage and a network layered structure and is suitable for ships is designed, as shown in figure 1.
The system framework is divided into a communication network layer, a network access layer and an application service layer. The communication network layer is composed of a satellite network and an LTE network and provides physical network support for realizing the functions of the two layers. The communication network layer is based on link integration of IP, so that the integrity of a marine communication system can be greatly improved, and a strong communication network can be constructed; the network access layer autonomous switching technology solves the problem of link priority and can realize efficient autonomous switching of two communication modes of an optimal wireless network and a satellite. The smooth seamless connection of the communication link is guaranteed, and the communication service quality of offshore oilfield mobile facilities can be guaranteed. The efficient satellite network and LTE network priority definition, link signal and network performance detection technology can quickly perform link switching judgment.
The application business layer provides various communication applications and services for the marine mobile ship, such as the butt joint of systems of voice telephone, office application, weather, video monitoring, video conference, positioning, oil consumption, remote talkback, individual video, internet of things and the like.
The utility model discloses the system constitutes offshore oil field mobile communication network and fuses the system through the integration to the LTE network that covers and satellite communication, can realize offshore oil field mobile facility's both-way communication. And when the offshore mobile facility sails to the platform LTE coverage area, the platform LTE network is autonomously switched to, and data are transmitted back through the platform network. The system block diagram of the whole system is shown in the attached figure 1, a satellite network is mainly accessed through a satellite antenna for communication in motion, wireless network signals are accessed through an LTE antenna, then link priority judgment and link selection are carried out through an autonomous switching module, and finally the system block diagram is accessed into an internal network of the offshore oilfield. The offshore oilfield mobile communication network fusion system is rich in service forms and can transmit services such as voice calls, data, weather, video monitoring, video conferences, positioning, oil consumption, remote talkback, individual video and the Internet of things.
The form of the ship-borne communication-in-motion satellite antenna is not limited, but for ship-borne communication-in-motion satellite antennas with different mechanical structure domains and different calibers, the packet loss rate is required to be not more than 0.1%, the link stability is required to be more than 98%, and meanwhile, the satellite finding and tracking functions are normal. The star finding can be carried out automatically when the shielding exists, and the star finding time after the shielding is recovered does not exceed 30 seconds. When the ship swaying angle is satisfied (the azimuth, the pitch and the roll are not less than 25 degrees/10S), the network state can still be ensured to be stable.
The whole system autonomous switching logic is shown in fig. 3, wireless networks include an LTE communication network and various microwave networks, and the purpose is to extend a land Internet network to an area without an ocean coverage network, but these wireless networks cannot cover ocean in a large area at present; the satellite network has large coverage area and better ocean coverage area at present, but the satellite network has the defects of time delay and the like and is just complementary with a wireless network. The system can realize the switching of various networks by using the network controller with the switching function, the switching controller adopts a fuzzy algorithm for detecting the link signal quality and the network performance to realize the multi-network switching judgment, the switching controller can set different network priorities, the network with high priority is taken as the main network in the algorithm, other networks are taken as backup networks, the switching controller judges that the main network is disconnected, the main network is switched to the backup network immediately, the signal quality and the network performance of the main network are monitored in real time, and the main network is switched back to the main network for communication after the main network signal is judged to meet the communication condition. The switching flow between the primary network and the backup network is shown in fig. 3.
The LTE signal of the autonomous switching module does not limit a communication operator, the automatic switching module can realize rapid link switching, and the LTE link is preferably selected when the two links of the system are smooth at the same time. When the ship drives into the LTE signal coverage sea area, the ship is autonomously switched to the LTE link, and the auxiliary link is switched to the main link for seamless switching. When entering an LTE signal uncovered area, the system is switched back to the satellite link from the LTE link, the switching time is not more than 60 seconds, and the link communication packet loss rate is not more than 0.1% in the whole switching process; meanwhile, the system can realize the function of manually switching double links and single links, both the two link forms can work normally, and the packet loss rate and the stability are normal.
The overall network in the system takes the LTE network as a main network, other networks are backup networks, the quality of the LTE signal is judged, the judgment condition of the stability of the LTE signal is optimized for many times, so that the LTE signal is not too sensitive and not too slow, and the LTE network is switched back to the LTE network when the stability of the LTE network is judged.
The core of the whole system is an autonomous switching module, wherein the switching principle between different networks of a satellite network and a wireless network is as follows, an LTE network is set as a main network, other networks are backup networks, the LTE switching judges the quality of LTE signals while judging ping packets, and a certain threshold value setting is judged based on the fusion fuzzy judgment of the two conditions, for example, the ping packets can be set to ping 10 packets with less than 3 packet losses and the signal quality is judged, and at the moment, if the signal quality is in an available range, the network is switched; if the setting is too harsh, the problem that the switching cannot be performed for a long time occurs, namely, after the satellite network is switched to, the LTE network is switched back to the LTE network after the LTE network is recovered for a long time. Because the LTE network has instability in many areas, after a large number of actual tests, and an approximate interval of a specific judgment threshold is analyzed, the network stability judgment threshold is reset, and the network can be switched normally after a plurality of tests, in most cases, the network can be switched within 15 seconds, and when both networks are stable, the switching speed is high, and basically, no delay or packet loss exists.
Fig. 3 is a flowchart of an internal work flow of a switching module, where a main network and a backup network type need to be set for initial power-on, and as shown in fig. 3, access networks are an LTE network and a satellite communication network, both of which may be selected as the main network or the backup network, and a network monitoring unit first starts the main network to connect to an Internet network according to corresponding configurations of the main network and the backup network, and then determines whether the main network is stable; if the main network is stable, the main network is used, and meanwhile, the network communication quality is monitored in real time; if the main network is monitored to be unstable and the signal quality is lower than the threshold value, switching to a backup network to try to connect the Internet; if the backup network is judged to be stable, the backup network is used, and the communication quality of the main network is monitored in real time while the backup network is used; and if the signal quality of the main network is recovered and is higher than the threshold value, switching back to the main network immediately, and monitoring the signal quality of the main network in real time.
The network signal quality judgment adopts a fuzzy fusion form, the ping packet is judged during network switching, meanwhile, the network signal quality is judged, and a certain threshold value is set based on the fusion fuzzy judgment of the two conditions, so that frequent switching or overlong switching time is avoided.
Fig. 4 is an internal block diagram of an autonomous handover module (model: 4g-f3x36), and fig. 5a to 5c are basic parameters of the system autonomous handover module. The CPU adopts a 32-bit industrial-level processing chip, and the software system adopts a linux operating system, so that the real-time performance is good, and the maintenance is convenient. The LTE network system comprises 3 LTE sim card slots and can be compatible with the whole network. One wan port is used for accessing other networks, supports wifi and 2 lan ports.
The present invention is not limited to the above-described embodiments. The above description of the specific embodiments is intended to illustrate the technical solutions of the present invention, and the specific embodiments are only illustrative and not restrictive. Without departing from the spirit of the invention and the scope of the appended claims, the person skilled in the art can make many changes in form and detail within the teaching of the invention.
Claims (2)
1. The offshore oilfield mobile communication fusion system comprises a communication network layer consisting of a satellite network and an LTE network, and is characterized by further comprising a network access layer and an application service layer, wherein the network access layer consists of an autonomous switching module and a network switch, a network monitoring module is arranged in the autonomous switching module, the autonomous switching module is used for realizing autonomous or manual switching to the satellite network or the LTE network, and the switched corresponding network is communicated with the application service layer through the network switch.
2. The offshore oilfield mobile communication convergence system of claim 1, wherein the LTE network is operable to use unicom, mobile or telecom; when the satellite network and the LTE network are simultaneously unblocked, the LTE network link is preferably selected; when the mobile equipment in the application service layer enters an LTE network signal coverage sea area, the mobile equipment is autonomously switched to an LTE link; when entering an area uncovered by LTE network signals, the system is switched back to the satellite link from the LTE link, the switching time cannot exceed 60 seconds, and the packet loss rate of link communication is guaranteed to be less than or equal to 0.1% in the whole switching process.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115065403A (en) * | 2022-08-17 | 2022-09-16 | 成都迅翼卫通科技有限公司 | Heaven and earth integrated communication equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115065403A (en) * | 2022-08-17 | 2022-09-16 | 成都迅翼卫通科技有限公司 | Heaven and earth integrated communication equipment |
| CN115065403B (en) * | 2022-08-17 | 2022-12-02 | 成都迅翼卫通科技有限公司 | World integration communication equipment |
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