CN202189151U - Cross station high speed communication system used for geophysical exploration - Google Patents
Cross station high speed communication system used for geophysical exploration Download PDFInfo
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- CN202189151U CN202189151U CN2011202586086U CN201120258608U CN202189151U CN 202189151 U CN202189151 U CN 202189151U CN 2011202586086 U CN2011202586086 U CN 2011202586086U CN 201120258608 U CN201120258608 U CN 201120258608U CN 202189151 U CN202189151 U CN 202189151U
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Abstract
The utility model discloses a cross station high speed communication system used for geophysical exploration, including a main control computer, cross stations and acquisition stations. The main control computer is connected with the cross stations in sequence; the cross stations are connected by cross lines; the acquisition stations are connected to the two sides of each cross station; each cross station includes a field programmable gate array, a parallel/serial converter, a serial/parallel converter, a driver, an equalizer, a command interface and a data interface; each command interface is connected with the field programmable gate array through the driver and the parallel/serial converter in sequence; and each data interface is connected with the field programmable gate array through the equalizer and the serial/parallel converter in sequence. In the utility model, the structure is simple, operation and usage are convenient, cost is low, the data transmission rate can reach 144 Mbps, and the data sending and receiving distance is as high as 100 meters when transmission medium is an unshielded twisted pair.
Description
Technical field
The utility model relates to earthquake data acquisition and transmission system, specifically is a kind of intersection station high-speed communication system that is used for geophysical survey.
Background technology
Data acquisition in the land seismic prospecting instrument that widely uses at present both at home and abroad and transmission system are as the 408UL system for acquiring seismic data of the system IV of American I N company and French Sercel company etc.Domestic land seismic prospecting data collecting system mainly is the product of these two families of import.The work of domestic independent research seismic prospecting launches, and from national intellecture property patent search system, inquires the patent " communication system of cross station spread cable interface " (application number 200910081815.6) of Dongfang Geophysical Exploration Co., Ltd., SINOPEC's application.Product or patent with these three families is the data transfer mode at the present intersection station of background introduction below.
The system IV of American I N company is commercial seismic prospecting instrument.Intersect and adopt the RS485 hardware interface to communicate between station and the acquisition station, the transmission transfer rate is 8Mbps (per second 8 megabits), and communication protocol is self-defining specialized protocol, and is externally not open, belongs to commercial secure content.
The 408UL of France Sercel company is commercial seismic prospecting instrument.The external total interface in station that intersects all is two pairs of unshielded twisted pairs.The message transmission rate of intersecting the station and intersecting between the station is 18.384Mbps, and message transmission rate is 8.192Mbps on the big line of intersection station and acquisition station.408UL adopts a type TCP/IP communications protocol, and is divided into asynchronous and synchronous two kinds of communication modes.The custom-designed circuit chip of intersection station external interface hardware using, the technical data of chip belongs to commercial secure content.The external detailed Communication Control Technology in station of intersecting also belongs to commercial secure content.
The intersection station of describing in the patent " communication system of cross station spread cable interface " (application number 200910081815.6) of Dongfang Geophysical Exploration Co., Ltd., SINOPEC's application; Adopt embedded MPC8270 processor as main control unit, realize the data forwarding between secondary management, survey line and the cross spider of survey line and arrange task dispatching again.The communication interface at intersection station is divided into two kinds of control command interface and data transmission interfaces.Wherein, command interface adopts the RS485 standard, and communication speed is 500kbps (a per second kilobit), and data transmission interface adopts ethernet physical layer AN5802 chip, transfer rate 40Mbps.The down order frame of communication protocol adopts the UART frame, adopts a type HDLC to seal dress, and the uplink data frames of communication protocol adopts mac frame, and physical transfer is LRE.
At present, distributed earth seismic exploration instrument data acquisition system generally adopts the system topology of " main control computer+intersection station+acquisition station ".The intersection station is the management node and the convergence node of every big line in the instrument, also is the node that crosses of big line and cross spider.Intersecting the station sends order to subordinate's acquisition station of the big line that it connected, and receives and uploads from the replying of subordinate's acquisition station, status information and geological data.Simultaneously, also intersect the station and send order, receive and upload from the subordinate and intersect the replying of station, status information and geological data to the subordinate of the cross spider that it connected.Along with the development of high precision seismic exploration technology, the road number of instrument is increasing, and the requirement of sampling rate also by original 500sps, is brought up to 4ksps.For some special exploration, sampling rate even up to 16ksps or 32ksps.High sampling rate has produced bigger data.
In order to realize the high efficiency work of instrument, the data that requirement collects are end of transmission before next big gun is blown out, and reduces maybe can not have because count to pass the dead time that lags behind and bring as far as possible.At present the data transmission rate scope of the intersection station communication interface of domestic existing seismic prospecting instrument is usually at 8-40Mbps, limited the real-time and the work efficiency of extensive, high precision, high sampling rate seismic prospecting instrument.
The utility model content
The technical matters that the utility model will solve provides a kind of intersection station high-speed communication system that is used for geophysical survey, solves the low problem of existing communication system's data transmission rate.
The technical scheme of the utility model is:
The intersection station high-speed communication system that is used for geophysical survey; Comprise main control computer, intersect and stand and acquisition station; Described main control computer successively with intersect the station and be connected; Connect through cross spider between intersection is stood, acquisition station is connected in the both sides that each intersection is stood through big line, and described each intersection station has included field programmable gate array, parallel/serial converter, serial/parallel converter, driver, balanced device, command interface and data-interface; Each command interface is connected with field programmable gate array with parallel/serial converter through driver respectively successively, and each data-interface is connected with field programmable gate array with serial/parallel converter through balanced device respectively successively.
Described each intersection station has included a field programmable gate array, four parallel/serial converters, four serial/parallel converters, four drivers, four balanced devices, four command interfaces and four data interfaces; Four command interfaces are connected with field programmable gate array with a parallel/serial converter through a driver respectively successively, and four data interfaces are connected with field programmable gate array with a serial/parallel converter through a balanced device respectively successively.
Described driver is selected driver CLC001 for use; Described balanced device is selected balanced device CLC012 for use.
Be respectively arranged with a connector on four sides at described intersection station, a command interface and a data interface are arranged in the connector as one group.
Be connected with 2-8 on described each acquisition station and detect ripple, flexible configuration as required.
The described field programmable gate array of the utility model is the control center at intersection station, responsible reception and the forwarding that realizes the parsing to order, forwarding, data; The function of parallel/serial converter is to convert parallel data into serial data; The function of serial/parallel converter is to convert serial data into parallel data; The signal that cable driver CLC001 is responsible for cable drives; Cable equalizer CLC012 is responsible for the equilibrium of cable signal.
Described command frame is the down order frame, is used to store various command and the configuration information that master station sends downwards; Frame is a uplink data frames, is used to store the data of some additional informations and collection.
The advantage of the utility model:
(1), structure is formed at the intersection station that the utility model designed; Subordinate's acquisition station communication interface on feasible intersection station and the big line; And intersect on station and the cross spider/subordinate intersects the communication interface at station, and the distance of data transmission and Data Receiving is up to 100 meters, and data transmission rate reaches 144Mbps.The Physical layer of each communication interface is selected two pairs of unshielded twisted pairs for use, be respectively applied for down pass order and upload reply, state and geological data.After the communication interface data transmission rate at station of intersecting improves, thereby improved the work efficiency of tape track ability, real-time and the instrument of instrument.
(2), intersect station and be provided with 4 command interfaces and 4 data interfaces, intersect and be respectively arranged with 1 connector on four sides of standing, 1 command interface and 1 data interface are as one group; Be arranged in the connector; The four sides symmetric design of connector has guaranteed to intersect the station when being connected with other intersection stations, main control computer or acquisition station, need not distinguish closure, can arbitrarily revolve to turn 90 degrees connection; Make things convenient for field work, improved the field condition work efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model communication system.
Fig. 2 is the structural representation at the utility model intersection station.
Fig. 3 is the principle of work process flow diagram of the utility model.
Embodiment
See Fig. 1, be used for the intersection station high-speed communication system of geophysical survey, comprise master control; 1, intersection station 2 and acquisition station 3; Main control computer 1 successively with intersect the station and 2 be connected, intersect and connect through cross spider 4 between the station 2, acquisition station 3 is connected in each through big line 5 and intersects the both sides of standing;
See Fig. 2; Each intersects station 2 and has included the serial/parallel converter of the parallel/serial converter of 1 field programmable gate array 6, four 7, four 8, four driver CLC001 9, four balanced device CLC012 10, four command interfaces 11 and four data interfaces 12; Four command interfaces 11 are connected with field programmable gate array 6 with a parallel/serial converter 7 through a driver CLC001 9 respectively successively, and four data interfaces 12 are connected with field programmable gate array 6 with a serial/parallel converter 8 through a balanced device CLC012 10 respectively successively; Be respectively arranged with a connector on four sides at intersection station 2, a command interface 11 and a data interface 12 are arranged in the connector as one group.
The work use principle of the utility model:
See Fig. 3, after the intersection station powers on, carry out self check; After self check is correct; Circuit board carries out initialization, each communication interface is configured in the mode of operation of acquiescence: command channel and data channel all are operated in the speed of 144Mbps, and the command channel is in the state that receives order of waiting for.Receive when some command channels and to intersect from master station or higher level after the order that the station sends that at first carry out command analysis, the station fill order of intersecting is carried out parameter configuration, and other three command channels are configured to transmit port.Then order is forwarded to subordinate intersection station and acquisition station.After a plurality of intersections station and acquisition station were accomplished parameter configuration step by step, system was in normal operating conditions, and data channel is three tunnel receptions, passes on the way, and the command channel is that one tunnel reception, three tunnel is sent.Receive and intersect from subordinate after the data of station or acquisition station when intersecting station, upwards send to the higher level through data channel and intersect and stand or master station.
Claims (4)
1. the intersection station high-speed communication system that is used for geophysical survey; Comprise main control computer, intersect and stand and acquisition station; Described main control computer successively with intersect the station and be connected; Intersect and connect through cross spider between the station; Acquisition station is connected in the both sides at each intersection station through big line; It is characterized in that: described each intersection station has included field programmable gate array, parallel/serial converter, serial/parallel converter, driver, balanced device, command interface and data-interface, and each command interface is connected with field programmable gate array with parallel/serial converter through driver respectively successively, and each data-interface is connected with field programmable gate array with serial/parallel converter through balanced device respectively successively.
2. the intersection station high-speed communication system that is used for geophysical survey according to claim 1; It is characterized in that: described each intersection station has included a field programmable gate array, four parallel/serial converters, four serial/parallel converters, four drivers, four balanced devices, four command interfaces and four data interfaces; Four command interfaces are connected with field programmable gate array with a parallel/serial converter through a driver respectively successively, and four data interfaces are connected with field programmable gate array with a serial/parallel converter through a balanced device respectively successively.
3. the intersection station high-speed communication system that is used for geophysical survey according to claim 1, it is characterized in that: described driver is selected driver CLC001 for use; Described balanced device is selected balanced device CLC012 for use.
4. the intersection station high-speed communication system that is used for geophysical survey according to claim 2; It is characterized in that: be respectively arranged with a connector on four sides at described intersection station; A command interface and a data interface are arranged in the connector as one group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202586086U CN202189151U (en) | 2011-07-21 | 2011-07-21 | Cross station high speed communication system used for geophysical exploration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202586086U CN202189151U (en) | 2011-07-21 | 2011-07-21 | Cross station high speed communication system used for geophysical exploration |
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| Publication Number | Publication Date |
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| CN202189151U true CN202189151U (en) | 2012-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202586086U Expired - Lifetime CN202189151U (en) | 2011-07-21 | 2011-07-21 | Cross station high speed communication system used for geophysical exploration |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778876A (en) * | 2012-07-24 | 2012-11-14 | 合肥国为电子有限公司 | Master station of geophysical exploration data acquisition device |
| CN102809759A (en) * | 2012-07-24 | 2012-12-05 | 合肥国为电子有限公司 | Geophysical exploration data acquisition station |
| CN105403911A (en) * | 2015-11-02 | 2016-03-16 | 合肥国为电子有限公司 | Main control system suitable for geophysical survey |
-
2011
- 2011-07-21 CN CN2011202586086U patent/CN202189151U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778876A (en) * | 2012-07-24 | 2012-11-14 | 合肥国为电子有限公司 | Master station of geophysical exploration data acquisition device |
| CN102809759A (en) * | 2012-07-24 | 2012-12-05 | 合肥国为电子有限公司 | Geophysical exploration data acquisition station |
| CN102809759B (en) * | 2012-07-24 | 2014-09-24 | 合肥国为电子有限公司 | Geophysical exploration data acquisition station |
| CN105403911A (en) * | 2015-11-02 | 2016-03-16 | 合肥国为电子有限公司 | Main control system suitable for geophysical survey |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120411 |
|
| CX01 | Expiry of patent term |