CN101621439A - Telemetry seismograph data transmission method based on multi-hop Ethernet - Google Patents
Telemetry seismograph data transmission method based on multi-hop Ethernet Download PDFInfo
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Abstract
The invention relates to a telemetry seismograph data transmission method based on a multi-hop Ethernet architecture. A seismograph host is connected with cross stations by cross lines in a multi-hop mode; the cross stations are respectively connected with acquisition stations at both sides by jug lines in the multi-hop mode; and the seismograph host is based on a TCP/IP protocol to interact commands and transmit data with the cross stations and ensures the reliability of earthquake data transmission. The invention applies Ethernet technologies to a wired telemetry seismograph which adopts the multi-hop architecture to connect the seismograph host, the cross stations and the acquisition stations, thereby simplifying the system connection, removing equipment in a traditional Ethernet, such as a switch, a router, and the like and facilitating the field construction. The seismograph host automatically distributes IP addresses for all the cross stations and the acquisition stations and can obtain connection sequences. The Ethernet based on 100Mbps can greatly improve the data transmission rate of the wired telemetry seismograph, and the practically measured data transmission rate of a jug line can achieve 30Mbps and exceeds the prior similar instrument only achieving 16Mbps.
Description
Technical field:
The present invention relates to the wired telemetry seismic detector in a kind of geophysical exploration, especially relate to the method for carrying out transmission of seismic data in wired telemetric seismic instrument based on multi-hop Ethernet architecture.
Background technology:
The wired telemetry seismic detector is to grow up on the basis of conventional digital seismograph, generally includes three parts, i.e. collecting unit, data transmission unit, central main control system.Wherein tcp data segment is one of seismographic core technology of wired telemetry, and its performance index are determining the real-time tape track ability of whole system.Use at present more wired telemetry seismic detector at home and be the 428XL of French sercel company, its message transmission rate is 16Mbps, is acknowledged as seismic detector the most advanced on the our times.Along with developing rapidly of ethernet technology, except the office field, also obtained application more and more widely at industrial control field, the Ethernet that present message transmission rate is 100Mbps is used very general.Therefore,, will improve its data transmission capabilities greatly, and then improve the real-time tape track ability of whole system if ethernet technology can be applied to the wired telemetry seismic detector.But seismic prospecting has its particularity, the one, be operated in the field, and environment is comparatively abominable; The 2nd, in work progress, often need repeatedly to move, have the characteristics of " moving ".This just requires the seismic detector should be light as far as possible, is based on the tree topology structure that equipment such as switch, router constitute and traditional switching Ethernet adopts, and line is comparatively complicated, can't adapt to the needs of open-air seismic prospecting.On the other hand, because seismic prospecting has the characteristics of " moving " in work progress, so the IP address (logical address) of each acquisition station need carry out dynamic assignment, and is difficult to obtain the position of each main frame in the switching Ethernet.Therefore, need adopt the suitable network topological structure and can carry out corresponding network management at the These characteristics of seismic prospecting.In the seismic prospecting of reality construction, operational environment normally in the open air, environment is comparatively abominable, and often needs instrument is carried out repeatedly moving, this just requires the seismic detector light and flexible.Traditional Ethernet needs equipment such as switch, router when carrying out networking, constitute star-like or tree-shaped topological structure, and line is comparatively complicated, can't adapt to the requirement of open-air seismic prospecting construction.
Summary of the invention:
Purpose of the present invention is exactly at above-mentioned the deficiencies in the prior art, provides a kind of ethernet technology is applied to the seismographic telemetry seismograph data transmission method based on multi-hop Ethernet architecture of wired telemetry.
The objective of the invention is to be achieved through the following technical solutions:
Based on the telemetry seismograph data transmission method of multi-hop Ethernet architecture, comprise following order and step:
A, seismic detector host A connect intersection station B by cross spider D in the multi-hop mode
1, B
2, B
3... Bn, intersection station B
1, B
2, B
3... Bn connects acquisition station C in the multi-hop mode to both sides by big line E respectively
1, C
2, C
3... Cn;
B, initiate to set up arranged by the seismic detector host A, divides two processes: at first intersecting station builds row, is stand distributing IP address and set up routing table of each intersection; Notify each intersection station to carry out acquisition station then and build row.The seismic detector host A is each distributing IP address, intersection station, in intersecting the station, each sets up four class routing tables respectively simultaneously, to the route of seismic detector host A, to port place, left side network segment route, to port place, right side network segment route, route to descending intersection station direction, after setting up routing table, each intersection station is back to the seismic detector main frame with the state information of oneself, stands if afterbody intersects, then set the trailer information flag bit in state information, notice seismic detector main frame intersection station is built row's process and is finished;
Row's process is built at c, intersection station: the intersection station receives the intersection station of seismic detector host A and builds row's order, set the IP address of each port of intersection station according to the row's of building order, set up new routing table simultaneously, routing table is divided into four classes, route to the seismic detector host A, to port place, left side network segment route, to port place, right side network segment route, to the route of descending intersection station direction.After setting up routing table, the state information of standing oneself of intersecting is back to the seismic detector host A, according to the row's of the building order that receives, generate the new row's of building command frame, and be sent to next with broadcast mode and intersect the station, be sent to intersection station Bn successively, afterbody intersection station Bn sets the trailer information flag bit in state information, and notice seismic detector host A intersection station is built row's process and finished;
D, acquisition station are built row's process: the acquisition station that station receives the seismic detector host A of intersecting is built after row orders, begin acquisition station and build row from its left side and two ports in right side respectively, the acquisition station port is divided into the uplink and downlink both direction, up direction is the direction that is connected to the intersection station, and down direction connects acquisition station B for the multi-hop mode
1, B
2, B
3... the direction of Bn;
After the IP address assignment of e, each acquisition station is finished, set up three class routes respectively: to the main frame route, to affiliated intersection stop by and default route, set up after the routing table, each acquisition station is back to the affiliated station that intersects with the state information of oneself, if afterbody acquisition station, then set the trailer information flag bit in state information, the end of row's process is built at the intersection station under the notice;
F, seismic detector host A carry out the transmission of the mutual and data of order based on ICP/IP protocol with it, obtain the geological data of its collection from acquisition station based on File Transfer Protocol.
Purpose of the present invention can also be achieved through the following technical solutions:
The seismic detector host A is provided with an Ethernet interface; The station B that intersects is provided with four Ethernet interfaces; Acquisition station C is provided with two Ethernet interfaces; That four ethernet ports at station of intersecting are divided into is up, descending, left side, right side, four direction, wherein uplink port is the direction to the seismic detector host A, downlink port connects the next station B that intersects by cross spider D, and the left side is connected acquisition station C with the right side port by big line E.
Beneficial effect: ethernet technology is applied to the wired telemetry seismic detector, adopts the multi-hop framework to connect the seismic detector main frame, intersect and stand and acquisition station, simplified system's line, removed equipment such as the switch in the traditional ethernet, router, be convenient to field construction; Automatically distribute the IP address of each intersection station and acquisition station by the seismic detector main frame, and can obtain its order of connection; Based on ICP/IP protocol transmission data, guaranteed the reliability of transmission of seismic data, can improve the seismographic message transmission rate of wired telemetry greatly based on the 100Mbps Ethernet, survey big line message transmission rate and can reach 30Mbps, surpass the existing 16Mbps that only can reach with quasi-instrument.
Description of drawings:
Accompanying drawing 1 is wired telemetry seismic detector main frame, intersects and stand and acquisition station arranged distribution figure
Accompanying drawing 2 is built row's flow chart for the seismic detector main frame
Accompanying drawing 3 is built row's flow chart for the intersection station
Accompanying drawing 4 is built row's flow chart for acquisition station
Accompanying drawing 5 is built row's flow chart for acquisition station
Accompanying drawing 6 is the row's of building command frame structure chart
Accompanying drawing 7 is the state information frame assumption diagram
A seismic detector main frame, B intersect the station, C acquisition station, D cross spider, the big line of E.
Embodiment:
Be described in further detail below in conjunction with drawings and Examples:
Connect the seismic detector host A in the multi-hop mode, intersection station B, acquisition station C, as shown in Figure 1, operation ICP/IP protocol on it.
Initiated by seismic detector host A end, foundation is arranged, and setting up the process of arranging is that the seismic detector host A is stood and acquisition station distributing IP address for each intersects, and sets up routing table simultaneously in each station.The row's of building process comprises following two steps: at first intersecting the station builds row, promptly intersects distributing IP address, station and set up the routing table of necessity by the order of connection for each.Its process is: four ethernet ports at station of will intersecting are divided into up, descending, left side, right side, four direction, and wherein uplink port is the direction to main frame, and downlink port is for connecting the next station that intersects, and the left side is connected acquisition station with the right side port.Host side structure ethernet data frame, wherein comprise the IP address information of coupled four ethernet ports in intersection station and the IP address of main frame, the allocation rule of IP address, intersection station is: adjacent port is in the same network segment, each port all adopts the class b network address, and the network address is added 1 successively according to up, left side, right side, descending order, the host address of uplink port is 2, and the host address of other ports is 1.The Frame that host side will comprise address information is sent to adjacent intersection station in the udp broadcast mode, after this packet is received at the intersection station, extract IP address assignment information wherein, and distribute to the corresponding port, according to the new Frame of mentioned above principle structure, be sent to the next station that intersects in the udp broadcast mode then by its downlink port.Each intersection stands in IP address assignment finish after, set up four class routes respectively:,,, promptly arrive the route of descending intersection station direction to port place, right side network segment route-default route to port place, left side network segment route to the route of main frame.The foundation of setting up route like this is that intersection station or acquisition station only transmit information with the seismic detector main frame, and does not directly transmit information each other.Set up after the routing table, each intersects the station own state information is back to main frame, if afterbody intersects the station, then sets the trailer information flag bit in state information, and the notice main frame intersects the station builds the end of row's process.So far, host side can obtain the logic connecting relation at each intersection station according to the IP address information.
After row's end was built at the intersection station, the seismic detector main frame sent a command to each intersection station, carries out acquisition station and builds row.Intersecting station receives acquisition station and builds after row orders, begin acquisition station and build row from its left side and two ports in right side respectively, its process is: the acquisition station port is divided into the uplink and downlink both direction, and up direction is the direction that is connected to the intersection station, and down direction connects acquisition station B for the multi-hop mode
1, B
2, B
3... the direction of Bn.Intersecting stands constructs ethernet data frame, wherein comprise the IP address information of two ethernet ports of coupled acquisition station and the IP address of intersection station self and main frame, C class address is adopted in acquisition station IP address, its allocation rule is: adjacent port is in the same network segment, go the 3rd section of Port IP address thereon and add 1 in the IP address of downlink port, the host address of uplink port is 2, and the host address of downlink port is 1.For example, the uplink port IP address setting of certain acquisition station is A.B.C.2, and then its downlink port IP address is A.B. (C+1) .1.The Frame that intersecting stands will comprise the IP address information is sent to left side and right side acquisition station respectively in the udp broadcast mode, after acquisition station is received this packet, extract IP address assignment information wherein, and distribute to the corresponding port, according to the new Frame of mentioned above principle structure, be sent to next acquisition station in the udp broadcast mode then by its downlink port.Each acquisition station is set up three class routes respectively after IP address assignment is finished: to the route of seismic detector main frame via uplink port, to the route at affiliated intersection station via uplink port, default route promptly arrives the route of descending acquisition station direction, via downlink port.Set up after the routing table, each acquisition station is back to affiliated intersection station with the state information of oneself, if the afterbody acquisition station is then set the trailer information flag bit in state information, the affiliated intersection of notice station is built row's process and finished.So far, the intersection station can obtain the logic connecting relation of each acquisition station according to the IP address information.The seismic detector main frame obtains each intersection station acquisition station link information that both sides connected from each intersection station.
After the row of building finished, each intersection station and acquisition station all had fixed IP addresses and have set up necessary routing table, and after the IP forwarding capability was all enabled at acquisition station and intersection station, main frame just can carry out transfer of data based on ICP/IP protocol with it.For example can adopt File Transfer Protocol to obtain the geological data of its collection from acquisition station.
Ethernet technology is applied to the wired telemetry seismic detector, must considers the work characteristics of its field construction.In the seismic prospecting of reality construction, operational environment normally in the open air, environment is comparatively abominable, and often needs instrument is carried out repeatedly moving, this just requires the seismic detector light and flexible.Traditional Ethernet needs equipment such as switch, router when carrying out networking, constitute star-like or tree-shaped topological structure, and line is comparatively complicated, can't adapt to the requirement of open-air seismic prospecting construction.The Ethernet architecture that adopts the multi-hop mode to connect, the seismic detector main frame contains an above Ethernet interface; The station B that intersects contains four Ethernet interfaces; Acquisition station C contains two Ethernet interfaces; Cross spider D is used for the connection between seismic detector main frame-intersection station and the intersection station-intersection station; E is big line, is used to intersect connection between station-acquisition station and the acquisition station-acquisition station.Seismic detector host A operation WINDOWS operating system, intersection station B and acquisition station C operation built-in Linux operating system are supported ICP/IP protocol, and are enabled the IP forwarding capability of linux system itself.Equipment such as necessary switch, router when adopting this structure can remove the traditional ethernet networking, the simplified system line is fit to open-air seismic prospecting greatly.
When carrying out transmission of seismic data, the seismic detector main frame need obtain the interconnecting order of each intersection station and acquisition station, at above-mentioned multi-hop framework, be that intersection station and acquisition station distributing IP address determine that also it interconnects method in proper order fast, this process is called the foundation arrangement in seismic prospecting, and its concrete steps are: the whole row's of building process comprises two steps: the station B that intersects builds row and acquisition station is built row.At first intersecting the station builds row, the row of building finish back seismic detector host A obtain each intersect the station the IP address and interconnect information; The station B that intersects builds after row finishes, and the seismic detector host A starts each and intersects station and carry out acquisition station and build row, the row of building finish back seismic detector host A obtain each intersection stand each acquisition station of being connected the IP address and interconnect information.The station B that intersects builds row's process and is: four ethernet ports of standing of will intersecting are divided into up, descending, left side, right side, four direction, wherein uplink port is the direction to main frame, downlink port is for connecting the next station that intersects, and the left side is connected acquisition station with the right side port.Seismic detector host A structure ethernet data frame wherein comprises the IP address information of coupled four ethernet ports in intersection station and the IP address of main frame, and data frame format is seen accompanying drawing 4.The allocation rule of IP address, intersection station is: adjacent port is in the same network segment, each port all adopts the class b network address, and the network address is added 1 successively according to up, left side, right side, descending order, and the host address of uplink port is 2, the host address of other ports is 1.The IP address of setting the seismic detector host A is 128.0.0.1, and according to above-mentioned rule, the intersection station that is adjacent is up, left side, right side, downstream IP address are respectively: 128.0.0.2,128.1.0.1,128.2.0.1,128.3.0.1; Next up, left side, right side, the downstream IP address that intersects the station is respectively: 128.3.0.2, and 128.4.0.1,128.5.0.1,128.6.0.1, and the like.The seismic detector host A is sent to adjacent intersection station B according to above-mentioned intersection station IP address assignment rule construction data frame and in the udp broadcast mode, after the station B that intersects receives this packet, extract IP address assignment information wherein, and distribute to the corresponding port, according to the new Frame of mentioned above principle structure, be sent to the next station that intersects in the udp broadcast mode then by its downlink port.Each intersection stands in IP address assignment finish after, set up four class routes respectively: to the route of central host A, to port place, left side network segment route, to port place, right side network segment route, default route promptly arrives the route of descending intersection station direction.Set up after the routing table, each intersection station is back to the seismic detector host A with the state information of oneself, stands if afterbody intersects, and then sets the trailer information flag bit in state information, the end of row's process is built at notice seismic detector host A intersection station, and the status frames form as shown in Figure 5.So far, the seismic detector host A can obtain the physical connection order at each intersection station according to the IP address information.
After row's end was built at the intersection station, the seismic detector host A sent a command to each intersection station, and the startup acquisition station is built row's process.Intersecting station receives from the acquisition station of seismic detector host A and builds after row orders, begin acquisition station and build row from its left side and two ports in right side respectively, its process is: the acquisition station port is divided into the uplink and downlink both direction, up direction is the direction that is connected to the intersection station, and down direction is its opposite direction.Intersecting stands constructs ethernet data frame, data frame format is seen accompanying drawing 4, wherein comprise the IP address information of two ethernet ports of acquisition station that link to each other with its side and intersect the IP address of self and main frame of station, C class address is adopted in acquisition station IP address, its allocation rule is: adjacent port is in the same network segment, go the 3rd section of Port IP address thereon and add 1 in the IP address of downlink port, the seismic detector host address of uplink port is 2, and the host address of downlink port is 1.For example, IP address, left side, intersection station is 128.1.0.1, and IP address, right side is 128.2.0.1, and then the uplink and downlink IP address of this continuous acquisition station in left side, intersection station is set at respectively: 128.1.0.2,128.1.1.1; The uplink and downlink IP address of the continuous acquisition station in right side is set at 128.2.0.2,128.2.1.1 respectively.The Frame that intersecting stands will comprise the IP address information is sent to left side and right side acquisition station respectively in the udp broadcast mode, after acquisition station is received this packet, extract IP address assignment information wherein, and distribute to the corresponding port, according to the new Frame of mentioned above principle structure, be sent to next acquisition station in the udp broadcast mode then by its downlink port.With the acquisition station C in the accompanying drawing 1 is example, if its uplink and downlink IP address is respectively 128.1.0.2 and 128.1.1.1, then coupled next acquisition station IP address is respectively: 128.1.1.2 and 128.1.2.1.Each acquisition station is set up three class routes respectively after IP address assignment is finished: to the route of seismic detector main frame via uplink port, to the route at affiliated intersection station via uplink port, default route promptly arrives the route of descending acquisition station direction, via downlink port.Set up after the routing table, each acquisition station is back to affiliated intersection station with the state information of oneself, if the afterbody acquisition station is then set the trailer information flag bit in state information, notifies affiliated intersection station to build row's process and finishes, and the status frames form as shown in Figure 5.So far, the intersection station can obtain the physical connection order of each acquisition station according to the IP address information.The seismic detector main frame can obtain each intersection station acquisition station link information that both sides connected from each intersection station.
Transmission of seismic data: after the above-mentioned row of building process finished, each intersection station and acquisition station all had fixed IP addresses and have set up necessary routing table, and this moment, the seismic detector main frame can carry out the transmission of the mutual and data of order based on ICP/IP protocol with it.Adopt udp protocol to carry out the mutual of control command in the present embodiment, obtain the geological data of its collection based on File Transfer Protocol from acquisition station.
Claims (3)
1, a kind of telemetry seismograph data transmission method based on multi-hop Ethernet architecture is characterized in that, comprises following order and step:
A, seismic detector host A connect intersection station B by cross spider D in the multi-hop mode
1, B
2, B
3... Bn, intersection station B
1, B
2, B
3... Bn connects acquisition station C in the multi-hop mode to both sides by big line E respectively
1, C
2, C
3... Cn;
B, initiate to set up arrangement by the seismic detector host A, end shake instrument host A is each distributing IP address, intersection station, divide two processes: at first intersecting the station builds row, stand the distributing IP address and set up routing table for each intersects, notify each intersection station to carry out acquisition station then and build row, in intersecting the station, each sets up four class routing tables respectively simultaneously, route to the seismic detector host A, to port place, left side network segment route, to port place, right side network segment route, route to descending intersection station direction, after setting up routing table, each intersection station is back to the seismic detector main frame with the state information of oneself, stands if afterbody intersects, then set the trailer information flag bit in state information, notice seismic detector main frame intersection station is built row's process and is finished;
Row is built at c, intersection station, the intersection station is accepted the intersection station of seismic detector main frame and is built row's order, set the IP address of each port of intersection station according to the row's of building order, set up new routing table simultaneously, the row's of the building order according to receiving generates the new row's of building command frame, and be sent to next with broadcast mode and intersect the station, be sent to intersection station Bn successively, the station Bn that intersects sends the row's of building state report information to the seismic detector host A, and the intersection station is built row and finished;
D, acquisition station are built row, the acquisition station that station receives the seismic detector host A of intersecting is built after row orders, begin acquisition station and build row from its left side and two ports in right side respectively, the acquisition station port is divided into the uplink and downlink both direction, up direction is the direction that is connected to the intersection station, and down direction connects acquisition station B for the multi-hop mode
1, B
2, B
3... the direction of Bn;
After the IP address assignment of e, each acquisition station is finished, set up three class routes respectively: to the main frame route, to affiliated intersection stop by and default route, set up after the routing table, each acquisition station is back to the affiliated station that intersects with the state information of oneself, if afterbody acquisition station, then set the trailer information flag bit in state information, the end of row's process is built at the intersection station under the notice;
F, seismic detector host A intersect station and acquisition station based on ICP/IP protocol and each and carry out the transmission of the mutual and data of order.
According to the described telemetry seismograph data transmission method of claim 1, it is characterized in that 2, the seismic detector host A is provided with an Ethernet interface based on multi-hop Ethernet architecture; The station B that intersects is provided with four Ethernet interfaces; Acquisition station C is provided with two Ethernet interfaces.
3, according to the described telemetry seismograph data transmission method of claim 2 based on multi-hop Ethernet architecture, it is characterized in that, that four ethernet ports at station of intersecting are divided into is up, descending, left side, right side, four direction, wherein uplink port is the direction to the seismic detector host A, downlink port connects the next station B that intersects by cross spider D, and the left side is connected acquisition station C with the right side port by big line E.
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| CN102255981A (en) * | 2011-07-11 | 2011-11-23 | 中国石油天然气集团公司 | Highly-efficient reliable acquisition station address allocation method and system |
| CN102393531A (en) * | 2011-08-03 | 2012-03-28 | 中国石油天然气集团公司 | Data transmission system for seismic exploration |
| CN102394905A (en) * | 2011-07-21 | 2012-03-28 | 合肥国为电子有限公司 | Cross station high-speed communication system for geophysical exploration and communication protocol of cross station high-speed communication system |
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| CN1207578C (en) * | 2003-07-15 | 2005-06-22 | 中国石油化工股份有限公司石油勘探开发研究院南京石油物探研究所 | High-speed wireless seismic prospecting data collector |
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| CN102255981A (en) * | 2011-07-11 | 2011-11-23 | 中国石油天然气集团公司 | Highly-efficient reliable acquisition station address allocation method and system |
| CN102255981B (en) * | 2011-07-11 | 2013-10-16 | 中国石油天然气集团公司 | Highly-efficient reliable acquisition station address allocation method and system |
| CN102394905A (en) * | 2011-07-21 | 2012-03-28 | 合肥国为电子有限公司 | Cross station high-speed communication system for geophysical exploration and communication protocol of cross station high-speed communication system |
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| CN110716229A (en) * | 2019-11-06 | 2020-01-21 | 吉林大学 | Seismic data transmission system based on UWB multi-hop network architecture |
| CN111211856A (en) * | 2020-03-05 | 2020-05-29 | 吉林大学 | Wired seismograph time synchronization system and method based on WR protocol |
| CN111211856B (en) * | 2020-03-05 | 2023-12-05 | 吉林大学 | Wired seismograph time synchronization system and method based on WR protocol |
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