CN105301630A - Seismic exploration-used excitation source control method, system and codec extension module - Google Patents
Seismic exploration-used excitation source control method, system and codec extension module Download PDFInfo
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Abstract
The invention provides a seismic exploration-used excitation source control method, a system and a codec extension module. The method comprises steps: after a decoder arrives at an excitation point, an analog signal excitation request is sent; a decoder extension module converts the analog signal excitation request into a Beidou short message excitation request; a coder extension module receives the Beidou short message excitation request sent by the decoder extension module, position information of the excitation point is extracted from the Beidou short message excitation request, and the position information is sent to an instrument host; the coder extension module transmits a digital signal excitation instruction into a Beidou short message excitation command; and when the coder extension module determines the excitation time arrives, the coder is controlled to excite the excitation point. The technical problem that the excitation control command and a synchronous time sequential command in the prior art can not be transmitted high efficiently can be solved, purposes of high efficiently transmitting the excitation control command and the synchronous time sequential command are realized, the control range is wider, and accuracy is higher.
Description
Technical field
The present invention relates to seismic exploration technique field, particularly module expanded by a kind of seismic prospecting excitaton source control method and system, coder.
Background technology
In the production run of geophysical exploration development, need excitaton source when exciting and earthquake-capturing instrument host keeps radio communication unimpeded, to ensure to excite the transmission of control command and synchronous sequence order, if communication is smooth, so cannot excite or can cause exciting with gather asynchronous.
At present, according to the type of excitaton source and volume, code translator, analog radio (such as: GM338) and digital radio station (such as: TDMA) two kinds of communication apparatus are mainly used to carry out communication in process of production.By the impact of the factors such as radio station communication distance and environmental interference, maximum communication distance, only at about 12KM, even if use trunking, also only can be expanded to about 18KM by the maximum communication distance of these communication modes.
Further, there is the contradiction that transceiver channel uses in the transmission of simulation semi duplex radio station, namely when receiving key message (such as: TB signal, excite request etc.), if have other staff to utilize co-channelly carry out speech exchange, so can affect the transmitting-receiving of key message, even can cause information dropout.
The communication distance in radio station cannot meet the development trend of current wide-azimuth, wideband, highdensity seismic exploration technique, especially in mountain region, the construction of the complicated landform such as electrical network, loess tableland time, because communication does not freely need instrument host frequently to move to have become restriction to produce the bottleneck carrying out, affect production efficiency smoothly.
For the problem how ensureing the high efficiency of transmission exciting control command and synchronous sequence order, at present effective solution is not yet proposed.
Summary of the invention
Embodiments provide a kind of seismic prospecting excitaton source control method, to reach the object ensureing to excite the high efficiency of transmission of control command and synchronous sequence order, the method comprises:
After code translator arrives shot point, send simulating signal and excite request;
Code translator is expanded module and is excited request to be converted to data-signal described simulating signal to excite request, and described digital signal is excited request to be translated as Big Dipper short message to excite request;
Scrambler is expanded module and is received described code translator and expand the described Big Dipper short message that sends of module and excite request, excites request the positional information extracting shot point, and described positional information is sent to instrument host from described Big Dipper short message;
Described scrambler expansion module receives the digital signal instigation command excited described shot point that described instrument host returns, and described digital signal firing command is translated as Big Dipper short message instigation command;
Described code translator expansion module receives the described Big Dipper short message instigation command that described scrambler expansion module is sent, and extracts firing time from described Big Dipper short message instigation command;
Described code translator expands module when determining to arrive described firing time, controls described code translator and excites described shot point.
Embodiments provide a kind of code translator and expand module, to reach the object ensureing to excite the high efficiency of transmission of control command and synchronous sequence order, this module comprises:
AD conversion unit, is converted to data-signal for the simulating signal sended over by code translator;
First translation processing unit, is connected with described AD conversion unit, for described data-signal is translated as Big Dipper short message, or the Big Dipper short message controlled described code translator is translated as digital signal;
First communication unit, communicates for expanding module by Big Dipper short message and scrambler.
First translation processing unit, is connected with described AD conversion unit, for described data-signal is translated as Big Dipper short message, or the Big Dipper short message controlled described code translator is translated as digital signal;
First communication unit, communicates for expanding module by Big Dipper short message and scrambler.
The embodiment of the present invention additionally provides a kind of scrambler and expands module, and to reach the object ensureing to excite the high efficiency of transmission of control command and synchronous sequence order, this module comprises:
D/A conversion unit, for receiving the digital signal instigation command excited described shot point that described instrument host returns, and is translated as Big Dipper short message instigation command by described digital signal firing command;
Second translation processing unit, the digital signal for being sended over by instrument host is translated as Big Dipper short message, or code translator is expanded the Big Dipper short message that will be sent to scrambler and/or instrument host that module sends over and be translated as digital signal;
Second communication unit, communicates for expanding module by Big Dipper short message and described code translator.
The embodiment of the present invention additionally provides a kind of seismic prospecting excitaton source control system, to reach the object ensureing to excite the high efficiency of transmission of control command and synchronous sequence order, this system comprises: code translator, code translator expand module, scrambler, scrambler expansion module and instrument host, wherein
Described code translator, excites request for generating simulating signal, and excites shot point in response to the simulating signal firing command that described scrambler sends;
Module expanded by described code translator, expand module with described code translator and described code translator to be connected, be converted to Big Dipper short message for the simulating signal from described code translator being excited request and excite request, and control described code translator according to the Big Dipper short message firing command expanding module from described scrambler shot point is excited;
Module expanded by described scrambler, expand module with described code translator, described scrambler is connected with described instrument host, excite request for exciting request to be converted to simulating signal the Big Dipper short message expanding module from described code translator, the digital signal firing command from described instrument host is converted to Big Dipper short message firing command;
Described scrambler, expands module with described scrambler and is connected with described instrument host, for after shot point is excited, controls described instrument host according to the feedback information sended over from described encoder-side;
Described instrument host, for after described code translator excites described shot point, carries out signals collecting.
In embodiments of the present invention, the setting of module and scrambler expansion module is expanded by code translator, make to carry out data transmission by Big Dipper short message at code translator with between scrambler and main frame, thus solve in prior art the technical matters exciting control command and synchronous sequence order to transmit efficiently, reach the object that high efficiency of transmission excites control command and synchronous sequence order, range of control is wider, accuracy is higher.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a application's part, does not form limitation of the invention.In the accompanying drawings:
Fig. 1 is the structured flowchart of the seismic prospecting excitaton source control system according to the embodiment of the present invention;
Fig. 2 is another structured flowchart of the seismic prospecting excitaton source control system according to the embodiment of the present invention;
Fig. 3 is the method flow diagram of the seismic prospecting excitaton source control method according to the embodiment of the present invention;
Module when Fig. 4 is the seismic prospecting excitaton source control system normal mode work according to the embodiment of the present invention and data flow schematic diagram;
Module when Fig. 5 is the seismic prospecting excitaton source control system continuous acquisition work pattern according to the embodiment of the present invention and data flow schematic diagram.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with embodiment and accompanying drawing, the present invention is described in further details.At this, exemplary embodiment of the present invention and illustrating for explaining the present invention, but not as a limitation of the invention.
Inventor considers, the radio frequency band (such as: 138MHz, 151MHz) of current seismic prospecting license cannot meet in production communication and synchronous primary demand; Open network frequency range is as short in Wifi (2.4GHz, 5GHz) then exists communication distance, need a large amount of trunking, and trunking frequency easily conflicts, often can cause uncontrollable network delay, and impact is synchronous; Commercial network (such as: 800MHz, 900MHz, 1800MHz) is then limited to coverage rate and cannot expands in work area, is difficult to be applied to seismic prospecting.
As a kind of new data transfer mode, Big Dipper short message function is in the open under environment, substantially 100% covering can be reached, except special circumstances, the transmission delay of Big Dipper short message is level second, and have both the time service function of big-dipper satellite simultaneously, and therefore, can the time precision requirement of the sub-Millisecond of seismic exploration contentedly through regular hour control protocol.As can be seen here, Big Dipper short message can be applied in seismic prospecting process, to ensure the high efficiency of transmission exciting control command and synchronous sequence order.
Existing seismic survey system be exactly by: code translator, scrambler and instrument host form.Transmitted by radio station in code translator and scrambler, also do not possess the ability of transmission Big Dipper short message.For this reason, in this example, provide a kind of seismic prospecting excitaton source control system, as shown in Figure 1, comprising: code translator 101, code translator expand module 102, scrambler 103, scrambler expansion module 104 and instrument host 105.Namely, conversion and the transmission that module 104 can realize Big Dipper short message is expanded by code translator expansion module 102 and scrambler, such as digital signal originally can be translated as Big Dipper short message, also Big Dipper short message is translated as again after simulating signal can being converted to digital signal, like this because expand module 102 for code translator 101 is configured with a code translator that can carry out the conversion of Big Dipper short message and transmission, module 104 is expanded for scrambler 103 and instrument host are configured with a scrambler that can carry out the conversion of Big Dipper short message and transmission, thus make code translator 101 and data transmission can be carried out by Big Dipper short message between scrambler 103 and instrument host 105.
Particularly:
1) code translator 101, excites request for generating simulating signal, and excites shot point in response to the simulating signal firing command that scrambler 103 sends;
2) module 102 expanded by code translator, expand module 104 with code translator 101 and code translator to be connected, be converted to Big Dipper short message for the simulating signal from code translator 101 being excited request and excite request, and excite according to the Big Dipper short message firing command control code translator 101 pairs of shot points expanding module 104 from scrambler;
This code translator is expanded module 102 and can as shown in Figure 2, be comprised: AD conversion unit 1021, is converted to data-signal for the simulating signal sended over by code translator 101; First translation processing unit 1022, is connected with AD conversion unit 1021, for data-signal is translated as Big Dipper short message, or the Big Dipper short message controlled code translator 101 is translated as digital signal; First communication unit 1023, communicates for expanding module by Big Dipper short message and scrambler.
This code translator is expanded in module 102 can also be provided with process memory module, this process memory module can the pair warp and weft degree elements of a fix, simple and easy pile No., shot point call number be mated mutually, and record excites the quality control information of shot point, time and latitude and longitude information that external record system log (SYSLOG) excites at every turn can also be matched.
3) module 104 expanded by scrambler, expand module 102 with code translator, scrambler 103 is connected with instrument host 105, excite request for exciting request to be converted to simulating signal the Big Dipper short message expanding module 102 from code translator, the digital signal firing command from instrument host 105 is converted to Big Dipper short message firing command;
Module 104 expanded by this scrambler can be as shown in Figure 3, comprise: D/A conversion unit 1041, for the digital signal instigation command excited shot point that receiving instrument main frame 105 returns, and digital signal firing command is translated as Big Dipper short message instigation command; Second translation processing unit 1042, digital signal for being sended over by instrument host 105 is translated as Big Dipper short message, or code translator is expanded the Big Dipper short message that will be sent to scrambler 103 and/or instrument host 105 that module 102 sends over and be translated as digital signal; Second communication unit 1043, communicates for expanding module 102 by Big Dipper short message and code translator.
This scrambler is expanded in module 104 can also be provided with host interface module, thus control instrument main frame sends acquisition to field arrangement.Further, this scrambler is expanded module 104 and is provided with supporting software, effective data separating can be carried out under the continuous acquisition patterns such as node instrument or microearthquake by this supporting software, can also according to calculation of longitude & latitude seismic exploration shot point simplification coordinate or call number matchingly.
4) scrambler 103, expands module 104 with scrambler and is connected with instrument host 105, for after shot point is excited, controls instrument host 105 according to the feedback information sended over from encoder-side.
Particularly, scrambler is used for the mouth coordinate that receiver decoder sends, and notify instrument host, instrument host is after instrument host operator input excites operation, scrambler is responsible for synchronous with code translator and uphole equipment, after code translator excites, can scrambler, scrambler be sent to send to instrument host after digitizing again simulation TB (TimeBreak, time break) and uphole time.
Briefly, scrambler, code translator are the synchronisms coordinating earthquake instrument host and well gun excitation.Wherein, scrambler is responsible instrument host, code translator is responsible well gun excitation, can exchange instigation command, mouth coordinate, simulation TB and uphole time etc. between the two for exciting the parameter information of control and quality control.
5) instrument host 105, for after code translator 101 pairs of shot points excite, carries out signals collecting.
Namely, the Main Function that module 102 and scrambler expand module 104 expanded by above-mentioned code translator is exactly the Big Dipper short message transmission realized in seismic prospecting excitaton source control system, is converted to Big Dipper short message transmits originally carrying out the voice signal that transmits and simulating signal by radio station between shot point and instrument host.
Further, consider that shot point and instrument host need to realize clock synchronous when carrying out shot point and exciting, geological data could be obtained more accurately like this.For this reason, can expand in module 102 at code translator and a crystal oscillating circuit is set, expand in module 104 at scrambler and a crystal oscillating circuit is set, expand by code translator the crystal oscillating circuit arranged in module 102 and scrambler expansion module 104 and carry out clock synchronous, thus make instrument host and shot point can realize the clock synchronous exciting and gather.Particularly, crystal oscillating circuit can export high accurate clock signal by Big Dipper time service and local crystal oscillator.
Based on shown in Fig. 1 to 2, seismic prospecting excitaton source control system, seismic prospecting can be carried out according to seismic prospecting excitaton source control method as shown in Figure 3, can comprise the following steps:
Step 301: after code translator arrives shot point, sends simulating signal and excites request;
Step 302: code translator is expanded module and simulating signal excited request to be converted to data-signal to excite request, and digital signal excited request to be translated as Big Dipper short message to excite request;
Step 303: the Big Dipper short message that scrambler expansion module receiver decoder expansion module is sent excites request, excites request the positional information extracting shot point, and positional information is sent to instrument host from Big Dipper short message;
Wherein, the positional information of shot point can the call number corresponding according to this shot point be determined, also can be that code translator to be expanded after module carries out satnav and determined.When identifying shot point position by call number (such as pile No.), this Big Dipper short message excites in request and can carry: the call number of shot point, like this, module just can match this shot point pile No. according to the call number of shot point expanded by scrambler, then just can determine the position of shot point according to pile No..When logical satnav mark shot point position, this Big Dipper short message excites in request and can carry: the longitude and latitude of shot point and elevation (namely identifying the position of the satnav of shot point with longitude and latitude and elevation), like this, module expanded by scrambler just according to the longitude and latitude of described shot point and elevation, can determine the position of shot point.
Step 304: the digital signal instigation command excited shot point that module receiving instrument main frame returns expanded by scrambler, and digital signal firing command is translated as Big Dipper short message instigation command;
Step 305: the Big Dipper short message instigation command that module received code device expansion module is sent expanded by code translator, and extracts firing time from Big Dipper short message instigation command;
Step 306: code translator expands module when determining to arrive firing time, controls code translator and excites shot point.
In the process implemented, module expanded by code translator can be set as firing time by the timing of the clock module of inside, when the timing of clock module arrives firing time, just can be excited shot point by code translator.
Correspondingly, be also provided with same clock module because expand in module at scrambler, therefore, scrambler expansion module can be put at one time and determine to need notice instrument host to carry out data acquisition.In this way, what just can realize that shot point and instrument host gather is synchronous.
Further, in the process that reality is implemented, shot point needs to transmit some Information Monitorings to instrument host side after acquisition, such as: simulation TB and uphole time etc.Therefore, code translator expands module while control code translator excites shot point, start to gather and digitized simulation TB and uphole time, and the simulation TB after digitizing and uphole time are translated as Big Dipper short message, then just by Big Dipper short message system, this can be carried the Big Dipper short message of simulating TB and uphole time and be sent to scrambler expansion module.Then, scrambler is expanded Big Dipper short message that module can carry simulation TB and uphole time according to this receiving and is generated simulation TB and uphole time exports scrambler, auxiliary channels etc. to, and can excite journal file by instrument host record.Wherein, auxiliary channels is uphole time before record digitizing and simulation TB signal, the quality being well He exciting of reaction.
Which can know shot point to make decoder end can excite, which shot point cannot excite, shot point is arrived at code translator, before transmission simulating signal excites request, scrambler is expanded module and can be laid and fault state according to arrangement, determine multiple shot point excited, then the call number of the multiple shot points excited determined is sent to code translator by Big Dipper short message data command and expands module, module expanded by such code translator just can according to the call number of the multiple shot points excited in Big Dipper short message data command, foundation can excite coordinate storehouse.
By the excited coordinate storehouse set up, which shot point decoder operation personnel can know can excite, and which cannot excite, thus can go to the shot point that can excite selectively.Further, code translator can be set to allow the instigation command that coordinate Cooley code translator can be excited to expand in module independently to excite, and excitation information is passed through Big Dipper short message system transfers to instrument host.
In the above-described embodiments, provide a kind of control and synchronous method, the system that can be applied to the production of seismic prospecting pulse excitation source, under the prerequisite using existing scrambler, code translator, utilize the Big Dipper short message functions expanding communication and synchronic distance, thus improve production efficiency, reduce production cost.Further, by Big Dipper short message systematic difference, under making open-air atmosphere, substantially can reach all standing, and the demand of time precision seismic exploration contentedly can be ensured.
Provide a specific embodiment in this example, but it should be noted that this specific embodiment is only to better the present invention is described, do not form inappropriate limitation of the present invention.
Realize exciting based on existing scrambler, code translator, expansion part and scrambler, decoding device interface can use inner general RTI agreement, and control and synch command use Big Dipper short message function to transmit.
The length considering every bar Big Dipper short message is conditional, namely within being limited in 140 words (960bits), therefore, need to follow certain agreement with reduction length in transfer encoding, particularly, can according to the form definition, simple code 11,21,12 of table 1, according to the form definition, simple code 31 of table 2, wherein, brevity code 11,21,12,31 is exactly the data expanding several Big Dipper short message forms transmitted between module and scrambler expansion module at code translator.
Table 1
Table 2
In above-mentioned table 1 and table 2, index offset number and index first and last implication are: by shot points sequence (such as, sorting with line pile No.) all in work area, the sequence number after sequence is defined as the call number of shot point.Like this, if completed the shot point of uninterrupted call number to 4312 before producing the same day, so in brevity code 31, index offset number is 4312, the call number 1 corresponding to shot point of so former call number 4313, as intact in arranged, the shot point of 400 Continuous Cable quotation marks can be produced the same day, so, first and last call number figure place was 0 (17 enough represent), and index hop count is 1 (only having a continuity index section), and after skew, first and last call number is 1 and 400.
As shown in Figure 4, be module when seismic prospecting excitaton source control system normal mode works and data flow schematic diagram.As shown in Figure 4, comprising: module expanded by code translator, code translator, scrambler expands module, scrambler, instrument host, and receive arrangement.Wherein code translator expansion module comprises: translation and processing module 1001, clock and locating module 1002, analog-to-digital conversion module 1003 and Big Dipper short message module 1004, and scrambler is expanded module and comprised: translation processing module 2001, clock module 2002, D/A converter module 2003 and Big Dipper short message transport module 2004.
Based on the excitaton source control system of the seismic prospecting shown in Fig. 4, after code translator expands module and code translator arrival shot point, transmission excites request RTI agreement 101 (RTI101 namely in Fig. 4), translation processing module 1001 is by analog signal figure and be translated as brevity code 11 and transmitted by Big Dipper short message transport module 1004, particularly, transferring content can comprise: the longitude and latitude of shot point satnav, time, the pile No. of coordinate or simplification or call number, code translator group number, password, the information such as team number, wherein, longitude and latitude, time, the pile No. of coordinate or simplification or call number are to identify this shot point, code translator combines, password, team number etc. also can be gathered the signal that it excites by the instrument host being positioned at which grouping for limiting this shot point, prevent information from misinformating.
Scrambler is expanded and by translation processing module 2001, satellite positioning coordinate is converted to the simple and easy pile No. of shot point after the Big Dipper short message transport module 2004 of module receives brevity code 11 and informs instrumentation person, instrumentation person is after judging that this shot point can excite, send instigation command RTI agreement 201 (RTI201 namely in Fig. 4), this RTI201 is translated as brevity code 21 by translation processing module 2001, then sent by Big Dipper short message transport module 2004, particularly, transferring content can comprise: agreement firing time, code translator group number, password, the information such as team number.When clock module 2002 arrives agreement firing time, translation processing module 2001 uses RTI201 notice instrument host control field arrangement to carry out seismic information collection.Synchronous in order to what keep on clock, the satellite of agreement firing time needs and shot point excites between request and leaves enough time delays, to adapt to the transmission delay of coder electrically and between Big Dipper short message, particularly, situation determination delay time that can be current according to work area, such as, can be 3s to 5s.
After code translator expansion module receives Big Dipper short message, when clock and locating module 1002 arrive agreement firing time, inform that translation and processing module 1001 export RTI agreement 102 (RTI102 namely in Fig. 4) notice control code translator and excite shot point, analog-to-digital conversion module 1003 starts to gather and digitized simulation TB and uphole time simultaneously, translation and processing module 1001 are by firing time, coordinate or simplify pile No. or call number, code translator group number, digitizing TB and uphole time are translated as brevity code 12, then transfer to scrambler by Big Dipper short message module 1004 and expand module.
Scrambler expands the translation of module and processing module 2001 by the short message content delivery that receives to D/A converter module 2003, and be converted to simulation TB and uphole time, then export the simulation TB be converted to and uphole time to scrambler, auxiliary channels, and record excites journal file.
Module when being illustrated in figure 5 seismic prospecting excitaton source control system continuous acquisition work pattern and data flow schematic diagram, that is, the form of construction work of the continuous acquisition such as node instrument or microearthquake.When mutual aftershock interference between shot point can be controlled, autonomous excitation mode as shown in Figure 5 just can be adopted to carry out continuous acquisition.
Further, in order to make instrument host can continuous acquisition, instrument host operator can use scrambler to expand module and lay and malfunction elimination situation according to arrangement, transmitted the shot point coordinate or simple and easy pile No. or call number that can excite by Big Dipper short message brevity code 31, code translator is expanded module and is allowed to excite coordinate storehouse according to the foundation of reception content.
Then, code translator can excite coordinate storehouse according to allowing, the instigation command utilizing code translator to expand in module independently excites, in order to ensure that precision can limit minimum interval, such as, be restricted to 8ms, namely, excitation information lower than 8ms, and cannot be transferred to instrument host by brevity code 12 by interval.Instrument host utilizes the shot point time in information and the real-time mask data of coordinate (or simple and easy pile No., call number), instrument host also can expand module locally through apolegamy record and matching treatment module 1005 writing time by code translator, is separated valid data (node instrument) for the later stage.
Further, scrambler is expanded module and can also to be upgraded by Big Dipper short message 31 according to instrument host operator and arranging situation and can excite coordinate storehouse or stop all instigation command when special circumstances.Such as, when the index purposes simplifying 31 gets 3, namely represent and need to shut down.When whether full the value of the flag that group is available by is 0, represent that the overall situation all needs to shut down.So, after code translator expansion module is received in and receives this information, need to notify that all code translators stop exciting with prestissimo.Particularly, information carries out sequential delivery between group, and therefore, module expanded by scrambler can first be transferred to maximum group number, is then transmitted to little group number by large group number, also can first be transferred to minimum group number, then be transmitted to large group number by little group number.Therefore, module expanded by code translator needs first to judge that information source is to determine routing direction (that is, judgement sends from larger group number to less group number, or send from less group number to maximum group number) before forwarding.After having determined routing direction, code translator is expanded module and can automatically be sent to next group number.So just be equivalent to carry out two groups of transmission simultaneously, saved half the time.Further, because consider that Big Dipper short message has the transmission time to limit, namely one can only be sent in a minutes.Therefore, after scrambler expansion module can be sent one minute to minimum group number code translator, then send to maximum group number.By this transmission mode, can stop gathering with prestissimo, avoid the generation of quality accident.
Compared to existing excitaton source control method, the seismic prospecting in above-described embodiment excitaton source control method and system, excite range of control to be equal to Big Dipper short message service coverage, therefore range of control is wider; Utilize satellite time transfer, clock accuracy is high, and sent by Big Dipper short message after the translation of quality control information local cache, there is not loss hidden danger, therefore precision is higher, only needs to carry out modularization upgrading, safety and stability to communication part, and therefore compatibility is higher; When arrangement is broken down, design uses delivery type interruptive command to stop corresponding excitation device work in time, and can not affect data quality because of ordered failure, therefore security is higher; No longer need speech communication frequently to manage workmen, all information only needing brevity code to transmit to need in production and there is not the phenomenon of station interference, effective production time increases greatly, and therefore, production efficiency is higher; And utilize Big Dipper short message and Big Dipper time dissemination system to carry out impulse source in seismic prospecting excite control, main frame can be promoted greatly under the prerequisite ensureing time precision and excite range of control and integral production efficiency.
Obviously, those skilled in the art should be understood that, each module of the above-mentioned embodiment of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the embodiment of the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the embodiment of the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a seismic prospecting excitaton source control method, is characterized in that, comprising:
After code translator arrives shot point, send simulating signal and excite request;
Code translator is expanded module and is excited request to be converted to data-signal described simulating signal to excite request, and described digital signal is excited request to be translated as Big Dipper short message to excite request;
Scrambler is expanded module and is received described code translator and expand the described Big Dipper short message that sends of module and excite request, excites request the positional information extracting shot point, and described positional information is sent to instrument host from described Big Dipper short message;
Described scrambler expansion module receives the digital signal instigation command excited described shot point that described instrument host returns, and described digital signal firing command is translated as Big Dipper short message instigation command;
Described code translator expansion module receives the described Big Dipper short message instigation command that described scrambler expansion module is sent, and extracts firing time from described Big Dipper short message instigation command;
Described code translator expands module when determining to arrive described firing time, controls described code translator and excites described shot point.
2. method according to claim 1, is characterized in that, described Big Dipper short message excites in request and carries: the call number of shot point, or, the longitude and latitude of shot point and elevation;
Correspondingly, excite request from the described Big Dipper short message positional information extracting shot point, comprising:
Match the pile No. of this shot point according to the call number of described shot point, determine the position of described shot point according to described pile No.;
Or, according to longitude and latitude and the elevation of described shot point, determine the position of described shot point.
3. method according to claim 1, is characterized in that, after extract firing time from described Big Dipper short message instigation command, described method also comprises:
Described code translator is expanded module and the timing of the clock module of inside is set as described firing time;
When the timing of described clock module reaches described firing time, determine to arrive described firing time.
4. method according to claim 1, is characterized in that, after the described code translator of control excites described shot point, described method also comprises:
The simulation time break that described code translator gathers by described code translator expansion module and uphole time, transition translation is Big Dipper short message feedback information;
Described code translator is expanded module and described Big Dipper short message feedback information is sent to described scrambler expansion module;
Described scrambler is expanded in Big Dipper short message feedback information described in module and is extracted simulation time break and uphole time;
Described scrambler is expanded module and the simulation TB extracted and uphole time is sent to scrambler and auxiliary channels.
5. method according to any one of claim 1 to 4, is characterized in that, arrives shot point at code translator, and before transmission simulating signal excites request, described method also comprises:
Described scrambler is expanded module and is laid and fault state according to arrangement, determines multiple shot point excited;
Described scrambler is expanded module and the call number of described multiple shot point excited is sent to described code translator expansion module by Big Dipper short message data command;
Described code translator expands module according to the call number of the described multiple shot points excited in described Big Dipper short message data command, and foundation can excite coordinate storehouse.
6. a module expanded by code translator, it is characterized in that, comprising:
AD conversion unit, is converted to data-signal for the simulating signal sended over by code translator;
First translation processing unit, is connected with described AD conversion unit, for described data-signal is translated as Big Dipper short message, or the Big Dipper short message controlled described code translator is translated as digital signal;
First communication unit, communicates for expanding module by Big Dipper short message and scrambler.
7. module expanded by code translator according to claim 6, it is characterized in that, also comprises:
First crystal oscillating circuit, exports and is used for synchronous time clock.
8. a module expanded by scrambler, it is characterized in that, comprising:
D/A conversion unit, for receiving the digital signal instigation command excited described shot point that described instrument host returns, and is translated as Big Dipper short message instigation command by described digital signal firing command;
Second translation processing unit, the digital signal for being sended over by instrument host is translated as Big Dipper short message, or code translator is expanded the Big Dipper short message that will be sent to scrambler and/or instrument host that module sends over and be translated as digital signal;
Second communication unit, communicates for expanding module by Big Dipper short message and described code translator.
9. module expanded by scrambler according to claim 8, it is characterized in that, also comprises:
Second crystal oscillating circuit, exports and is used for synchronous time clock.
10. a seismic prospecting excitaton source control system, is characterized in that, comprising: code translator, code translator expand module, scrambler, scrambler expansion module and instrument host, wherein,
Described code translator, excites request for generating simulating signal, and excites shot point in response to the simulating signal firing command that described scrambler sends;
Module expanded by described code translator, expand module with described code translator and described code translator to be connected, be converted to Big Dipper short message for the simulating signal from described code translator being excited request and excite request, and control described code translator according to the Big Dipper short message firing command expanding module from described scrambler shot point is excited;
Module expanded by described scrambler, expand module with described code translator, described scrambler is connected with described instrument host, excite request for exciting request to be converted to simulating signal the Big Dipper short message expanding module from described code translator, the digital signal firing command from described instrument host is converted to Big Dipper short message firing command;
Described scrambler, expands module with described scrambler and is connected with described instrument host, for after shot point is excited, controls described instrument host according to the feedback information sended over from described encoder-side;
Described instrument host, for after described code translator excites described shot point, carries out signals collecting.
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