CN103176209A - Method and panel for adaptively transmitting messages - Google Patents
Method and panel for adaptively transmitting messages Download PDFInfo
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- CN103176209A CN103176209A CN2013100863410A CN201310086341A CN103176209A CN 103176209 A CN103176209 A CN 103176209A CN 2013100863410 A CN2013100863410 A CN 2013100863410A CN 201310086341 A CN201310086341 A CN 201310086341A CN 103176209 A CN103176209 A CN 103176209A
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Abstract
The invention provides a method and a panel for adaptively transmitting messages. The method and the panel are used for marine seismic exploration streamers. The method includes that a digital packet sets a type identifier according to the type of the messages to be transmitted, a certain message with the type identifier is transmitted to other digital packets via one of two identical transmission channels, and the type of the messages includes commands and data; and the other digital packets judge the type of the message according to the type identifier in the message and correspondingly process the message after receiving the message from the transmission channel. The method and the panel have the advantages that the digital packets are free of directivity, operators can completely prevent faults and damage caused by reversely connecting heads of the digital packets with tails of the digital packets during operation, further, the work efficiency and the transmission accuracy are improved, and operation is facilitated.
Description
Technical field
The present invention relates to the offshore seismic exploration field, more particularly, relate to a kind of information self-adapting type transmission method and transmission board for the offshore seismic exploration towing cable.
Background technology
The marine seismic data acquisition technology is the technology of most critical in seismic prospecting, the data that the offshore seismic exploration job requirements receives without distortion and record is relevant to earthquake, marine seismic data acquisition must have the abilities such as great dynamic range, low noise, broadband and inhibition interference.
The geological data real-time Transmission is an important technology in the offshore seismic exploration data transmission, it need to complete during gathering hyperchannel, high-resolution seismic data without the error code real-time Transmission, have the characteristics such as high without error code, transfer rate, long Distance Transmission, serial transmission.In seismic exploration, be at sea all to adopt the serial mode the transmission of data.Being on the one hand owing to being not easy to control long synchronous apart from the parallel data transmission, is to patch the Limited Number of pin due to wire and cable connector on the other hand.
In seismic prospecting data collecting, after obtaining, the seismic signals collection need carry out in real time the stable data transmission of high speed.Usually adopt optical fiber to carry out the real-time Transmission of geological data.As shown in Figure 1, Fig. 1 is digital packets cascade system schematic diagram.The mutual cascade of the individual digital packets of N (=60) is arranged in figure, and the structure of all digital packets is identical, and system from the close-by examples to those far off numbers in order according to the distance of distance offshore survey ship automatically after powering on.0# digital packets wherein claims again the head bag, is prime digital packets, and is connected by the record on a protocol converter and survey vessel and the FCI card in disposal system (Fiber Channel Interface Card, fiber channel interface card).(N-1) # digital packets claims again the tail bag, is last stages of digital bag, can close by software command its input optical fibre.Every stages of digital bag sends the prime digital packets to after adding header packet information then to merge with the sampled data of all rear class digital packets accumulation the sampled data of present segment.Every stages of digital bag sends the prime digital packets to after the sampled data that sampled data and all rear class digital packets of present segment are accumulated can being merged, and the prime digital packets can be passed through the order of RS-485 serial cable alignment rear class digital packets converting downlink.So just make digital packets have directivity, what send to prime is data, and what send to rear class is order, and the operator can't avoid factor word packet header tail to connect the anti-fault that causes and damage in operating process.
Summary of the invention
In order to solve above-described technological deficiency, the invention provides a kind of information self-adapting type transmission method and transmission board for the offshore seismic exploration towing cable, make digital packets no longer have directivity, positive and negatively can access cable.
For achieving the above object, the present invention takes following technical scheme:
A kind of information self-adapting type transmission method is applicable to the communication of offshore seismic exploration towing cable, and wherein, the method comprises:
One digital packets arranges type identification according to the type of the information that will send, and is sent to other digital packets by one in two the identical transmission channels information that will have type identification, and the type of information comprises order and data;
Other packets determine the type of information and process accordingly according to the type identification in information after receiving information from a transmission channel.
During enforcement, type identification comprises that expression information is the Data Identification of data for command id and the expression information of order.
During enforcement, transmission channel comprises connected optical fiber transmission line and information interface module.
Preferably, the information interface module is on digital packets.
Preferably, be sent to other digital packets by one in two the identical transmission channels information that will have type identification, comprise:
Information is transmitted on optical fiber transmission line, and the information that will have type identification by the information interface module is sent to other digital packets.
A kind of transmission board, it is included in digital packets, comprises field programmable logic device, and wherein, described transmission board also comprises:
The information interface module is used for receiving the information from other digital packets, perhaps is used for making the information in the local digital bag to be sent to other digital packets;
Module is set, is used for according to the type of the information that will send, type identification being set;
Determination module, for determine the type of information according to the type identification of information, wherein, the type of information comprises order and data;
Signaling processing module is used for when the type that determines information is order, carries out the command process operation;
Data processing module is used for carrying out data processing operation when the type that determines information is data.
Preferably, signaling processing module and data processing module are included in field programmable logic device, realize signaling and data processing with field programmable logic device.
Preferably, module is set and determination module is included in field programmable logic device.
Preferably, transmission board comprises two groups of information interface modules, first group of information interface module is used for reception from the information of other digital packets, second group of information interface module is used for making the information in the local digital bag to be sent to other digital packets, and each group information interface module comprises two identical information interface modules.
During enforcement, type identification comprises that expression information is the Data Identification of data for command id and the expression information of order.
The present invention is owing to taking above-described technical scheme, and it comprises following advantage: the operator can avoid factor word packet header tail to connect the anti-fault that causes and damage in operating process fully, and then increases work efficiency, and improves the transmission accuracy, and convenient operation.
Description of drawings
Accompanying drawing in this explanation is used to provide a further understanding of the present invention, consists of the application's a part, and exemplary embodiment of the present invention and explanation thereof are used for explaining the present invention, are not construed as limiting the invention; In the accompanying drawings:
Fig. 1 is digital packets cascade system schematic diagram;
Fig. 2 is the principle schematic according to transmission method of the present invention;
Fig. 3 is the circuit theory diagrams of realizing the interior transmission board of digital packets of transmission method of the present invention.
Embodiment
In order to make technical scheme of the present invention clearer, below in conjunction with the drawings and specific embodiments, the present invention is done further elaborating.Need to prove, in the situation that do not conflict, embodiment and the variety of way in embodiment in the application can make up mutually.
Fig. 2 is the information self-adapting type transmission method according to one embodiment of the present of invention, as shown in Figure 2, change original demand transfer mode into the transmission mode same with data transmission-lvds High-speed Electric transmission mode by RS485, command transfer adopts the High-speed Electric transmission mode and use identical interface on digital packets with data transmission.The method comprises:
Digital packets arranges type identification according to the type of the information that will send, and is sent to other digital packets by one in two the identical transmission channels information that will have type identification, and the type of information comprises order and data;
Other packets determine the type of information and process accordingly according to the type identification in information after receiving this information from a transmission channel.
If determining the type of information is order, fill order is processed; If determining the type of information is data, executing data is processed.Data processing operation comprises storage data, uploading data etc.Command process is open in the prior art, and this paper no longer describes.When local digital wraps in the response down order, need to go here and there and change and resolve the down order that receives, down order is gone here and there and changed, then the parallel down order after conversion be resolved.
Wherein, type identification can comprise that expression information is the Data Identification of data for command id and the expression information of order.Transmission channel can comprise connected optical fiber transmission line and information interface module, and in one case, the information interface module can be on digital packets.Information is transmitted on optical fiber transmission line, and the information that will have type identification by the information interface module is sent to other digital packets.
Can make like this digital packets no longer have directivity, positive and negatively can connect cable.In Fig. 2, AC is symmetrical input end, and BD is symmetrical output terminal.Adopt symmetrical structure, make operating personnel can thoroughly avoid factor word packet header tail to connect the anti-fault that causes and damage in operating process.
The present invention also provides a kind of transmission board, and it is included in digital packets, comprises field programmable logic device, and wherein, transmission board also comprises:
The information interface module is used for receiving the information from other digital packets, perhaps is used for making the information in the local digital bag to be sent to other digital packets;
Module is set, is used for according to the type of the information that will send, type identification being set;
Determination module, for determine the type of information according to the type identification of information, wherein, the type of information comprises order and data;
Signaling processing module is used for when the type that determines information is order, carries out the command process operation;
Data processing module is used for carrying out data processing operation when the type that determines information is data.
In the application's a embodiment, signaling processing module and data processing module can be included in field programmable logic device, can realize that signaling is processed and data are processed with field programmable logic device.
In the application's a embodiment, module and determination module are set are included in field programmable logic device, can realize arranging and decision-making function with field programmable logic device.
In the application's a embodiment, transmission board can comprise two groups of information interface modules, first group of information interface module is used for reception from the information of other digital packets, second group of information interface module is used for making the information in the local digital bag to be sent to other digital packets, and each group information interface module comprises the information interface module of two same types.
As shown in Figure 3, in an embodiment of transmission board of the present invention, the transmission board circuit comprises: field programmable logic device (FPGA), string and modular converter (comprise string and conversion chip 7b923 and 7b933), information interface module (comprising clc012 and clc001), module, determination module, data processing module, signaling processing module are set.Module, determination module, data processing module, signaling processing module are set are included in field programmable logic device (FPGA), realize the function corresponding with it with field programmable logic device.First group of information interface module comprises the upper clc012 of A, C transmission channel, and second group of information interface module comprises the clc001 on B, D transmission channel.
The above embodiment is only preferred embodiment of the present invention, is not for limiting protection scope of the present invention, and those skilled in the art can deliberately carry out various modifications and variations to the present invention and without departing from the spirit and scope of the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of claim of the present invention and equivalent technologies thereof, the present invention also is intended to comprise these modifications and modification interior.
Claims (10)
1. information self-adapting type transmission method is applicable to the communication of offshore seismic exploration towing cable, and wherein, described method comprises:
One digital packets arranges type identification according to the type of the information that will send, and is sent to other digital packets by one in two the identical transmission channels described information that will have type identification, and the type of described information comprises order and data;
Other packets determine the type of described information and process accordingly according to the type identification in described information after receiving described information from a transmission channel.
2. method according to claim 1, wherein,
Described type identification comprises that expression information is the Data Identification of data for command id and the expression information of order.
3. method according to claim 1 and 2, wherein,
Described transmission channel comprises connected optical fiber transmission line and information interface module.
4. method according to claim 3, wherein,
Described information interface module is on digital packets.
5. method according to claim 3, wherein, be sent to other digital packets by one in two the identical transmission channels described information that will have type identification, comprising:
Described information is transmitted on described optical fiber transmission line, and the described information that will have type identification by described information interface module is sent to other digital packets.
6. transmission board, it is included in digital packets, comprises field programmable logic device, and wherein, described transmission board also comprises:
The information interface module is used for receiving the information from other digital packets, perhaps is used for making the information in the local digital bag to be sent to other digital packets;
Module is set, is used for according to the type of the information that will send, type identification being set;
Determination module, for determine the type of described information according to the type identification of described information, wherein, the type of described information comprises order and data;
Signaling processing module is used for when the type that determines described information is order, carries out the command process operation;
Data processing module is used for carrying out data processing operation when the type that determines described information is data.
7. transmission board according to claim 6, wherein,
Described signaling processing module and described data processing module are included in described field programmable logic device, realize signaling and data processing with described field programmable logic device.
8. transmission board according to claim 6, wherein,
Describedly module is set and described determination module is included in described field programmable logic device.
9. according to claim 6 or 7 or 8 described transmission boards, wherein, described transmission board comprises:
Two groups of information interface modules, first group of information interface module is used for reception from the information of other digital packets, second group of information interface module is used for making the information in the local digital bag to be sent to other digital packets, and each group information interface module comprises two identical information interface modules.
10. transmission board according to claim 6, wherein,
Described type identification comprises that expression information is the Data Identification of data for command id and the expression information of order.
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| CN201310086341.0A CN103176209B (en) | 2013-03-18 | 2013-03-18 | Method and panel for adaptively transmitting messages |
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| CN201310086341.0A CN103176209B (en) | 2013-03-18 | 2013-03-18 | Method and panel for adaptively transmitting messages |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105538A (en) * | 2006-07-12 | 2008-01-16 | 维斯特恩格科地震控股有限公司 | Time lapse marine seismic surveying employing interpolated multicomponent streamer pressure data |
| CN101477210A (en) * | 2009-01-15 | 2009-07-08 | 中国海洋石油总公司 | Earthquake data acquisition platform used for geophysical exploration |
| US20100226204A1 (en) * | 2009-03-09 | 2010-09-09 | Ion Geophysical Corporation | Marine seismic surveying in icy or obstructed waters |
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- 2013-03-18 CN CN201310086341.0A patent/CN103176209B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105538A (en) * | 2006-07-12 | 2008-01-16 | 维斯特恩格科地震控股有限公司 | Time lapse marine seismic surveying employing interpolated multicomponent streamer pressure data |
| CN101477210A (en) * | 2009-01-15 | 2009-07-08 | 中国海洋石油总公司 | Earthquake data acquisition platform used for geophysical exploration |
| US20100226204A1 (en) * | 2009-03-09 | 2010-09-09 | Ion Geophysical Corporation | Marine seismic surveying in icy or obstructed waters |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |
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