CN104020489A - Comprehensive control method and device for achieving offshore geophysical exploration - Google Patents
Comprehensive control method and device for achieving offshore geophysical exploration Download PDFInfo
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Abstract
The invention discloses a comprehensive control method and device for achieving offshore geophysical exploration. The method includes the steps that the comprehensive control device obtains GPS time information, GPS position information and sensor information periodically; the comprehensive control device judges the effectiveness of the GPS time information according to the obtained GPS time information and a preset deviation threshold value and performs reference interval updating and chronometer time calibration; the comprehensive control device marks obtaining moments of all information in first comprehensive information and second comprehensive information according to the obtained GPS position information, the sensor information and the chronometer time and sends the marked first comprehensive information and the marked second comprehensive information to a navigation working station; the comprehensive control device obtains gun control starting information and extracts and sends a shooting instruction to a gun control system; gun control synchronous information is obtained, and record information is sent to a comprehensive recording system. According to the technical scheme, due to the judgment of time effectiveness based on a reference interval, it is well avoided that ineffective time is used for time calibration, and therefore the requirement for high-precision and high-reliability comprehensive control is met.
Description
Technical field
The present invention relates to offshore geophysical exploration technology, espespecially a kind of integrated control method and device of realizing offshore geophysical exploration.
Background technology
Along with the fast development of offshore oil and gas prospecting and production, the robotization of the Comprehensive Control to offshore geophysical exploration and integrated having higher requirement.The Comprehensive Control of offshore geophysical exploration, completes separately and works within the predetermined time for coordinating and controlling marine various device, thereby commander implements exploratory engineering of off-shore petroleum/gas reservoir.Because offshore geophysical exploration relates to the equipment of various machineries, equipment electronics, acoustics and other type, huge and the control accuracy of the kind complexity of equipment, quantity requires high, therefore the integrated control method of offshore geophysical exploration is very complicated and high-precision dispatching method, needs high precision control and robotization highly and integrated.
Conventionally, the complex control system of offshore geophysical exploration is for controlling, communicate by letter or coordinating the system that multiple independently equipment or equipment form, comprise: geophysical vessel, towing cable, rifle control system, wave detector register system, composite record system, navigation workstation, various sensor and gps satellite etc.Wherein, geophysical vessel is mainly used in towed streamer and carries various device or system; Towing cable is the cable for the wave detector of linkage record geophysical prospecting informations, and geophysical vessel pulls multiple towing cables conventionally, comprises multiple wave detectors on each towing cable; Rifle control system is for Earthquake occurrence control source banger to produce the required seismic event of geophysical survey, and wherein the seismic origin is made up of multiple sub-focus conventionally, conventionally controls the each sub-focus banger simultaneously of the same seismic origin; Wave detector register system is the register system being made up of multiple wave detectors, and the reflected wave information producing through subsurface interface reflection for recording seismic event, is called big gun record by this reflected wave information in actual job; Navigation workstation has been used for the high precision computation of Comprehensive Control information needed.This complex control system and various sensor communicate to obtain relevant information, for example speed of geophysical vessel to water, and communicate to obtain relevant information with gps satellite.
The complex control system of existing offshore geophysical exploration, based on second, the time precision of level carries out scheduling and controlling, time precision is not high, and the accuracy that lacks available time arbitration functions or available time arbitration functions before time calibration is not high, exist to use and carries out the risk of time calibration ineffective time, thereby cannot meet the demand of high precision and highly reliable Comprehensive Control; In addition, the complex control system integrated level of existing offshore geophysical exploration is not high, need common cooperation of multiple discrete parts to realize Comprehensive Control, increase the complexity of design, debugging and deployment, thereby be difficult to the high automation of the Comprehensive Control that meets offshore geophysical exploration and the demand of high integration.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of integrated control method and device of realizing offshore geophysical exploration, can effectively improve precision and the fiduciary level of Comprehensive Control, thereby meet the demand of the Comprehensive Control of high precision, the high-reliability of offshore geophysical exploration.
In order to reach the object of the invention, the invention discloses a kind of integrated control method of realizing offshore geophysical exploration, comprising:
Composite control apparatus periodically obtains gps time information, GPS positional information and sensor information;
Described composite control apparatus judges the validity of described gps time information according to the gps time information and the predefined deviation threshold that obtain, and carries out base interval renewal and chronometer time calibration;
Described composite control apparatus is according to the GPS positional information, sensor information and the chronometer time that obtain, in the acquisition moment of each information in mark the first integrated information and the second integrated information, the first integrated information of concurrent warp let-off mark and the second integrated information are given navigation workstation;
Described composite control apparatus obtains rifle control log-on message, extracts banger instruction and sends to rifle control system; Obtain rifle control synchronizing information, and send recorded information to composite record system.
Described gps time information is periodical information, comprises GPS pulse and GPS absolute time;
The validity of described judgement gps time information, and carry out base interval upgrade and chronometer time calibrate step specifically comprise:
According to the GPS pulse obtaining, calculate GPS recurrent interval and the deviation with the base interval of safeguarding thereof;
According to the deviation and the predefined deviation threshold that obtain, determine whether described GPS pulse is effective;
In the time that described GPS pulse is effective, according to effective GPS recurrent interval and GPS absolute time, carry out base interval renewal and chronometer time calibration.
Described base interval is upgraded and is comprised: calculate described base interval and the mean value in described GPS recurrent interval, and using this mean value as described base interval, wherein, described base interval is set in advance as the quantity in described precision interval clock cycle corresponding to GPS recurrence interval.
Described chronometer time comprises second above time of level and second and following time;
The calibration of described chronometer time comprises: use GPS absolute time corresponding to described GPS pulse to upgrade described second above time of level, and from zero counting that restarts described second grade following time.
Described GPS positional information is periodical information;
Described sensor information is that periodical information at least comprises: the distance between ground speed, speed through water and the direction of geophysical vessel and the degree of depth and the towing cable of towing cable;
Described the first integrated information comprises: ground speed, speed through water, position and the direction of described geophysical vessel and each moment of obtaining these information;
Described the second integrated information comprises: the distance between the degree of depth and the towing cable of towing cable and each moment of obtaining these information;
The information in the banger moment that rifle control log-on message comprises each seismic origin;
Rifle control synchronizing information comprises the banger time at intervals of each sub-focus in each seismic origin;
Described recorded information at least comprises: rifle control synchronizing information, the first integrated information and the second integrated information.
The invention also discloses a kind of composite control apparatus of realizing offshore geophysical exploration, comprise information acquisition unit, time calibration unit, informix unit, rifle control communication unit and register system communication unit, wherein,
Information acquisition unit, for periodically obtaining gps time information, GPS positional information and sensor information;
Time calibration, unit, judged the validity of described gps time information for basis from gps time information and the predefined deviation threshold of described information acquisition unit, and carried out base interval renewal and chronometer time calibration;
Informix unit, for according to from the GPS positional information of described information acquisition unit and sensor information and from the chronometer time of described time calibration of unit, in the acquisition moment of each information in mark the first integrated information and the second integrated information, the first integrated information of concurrent warp let-off mark and the second integrated information are given navigation workstation;
Rifle control communication unit, for obtaining rifle control log-on message, extracts banger instruction and sends to rifle control system;
Register system communication unit, for obtaining rifle control synchronizing information, and sends recorded information to composite record system.
Described gps time information is periodical information, comprises GPS pulse and GPS absolute time;
Unit comprised deviation computing module, the effective determination module of pulse and upgraded calibration module described time calibration, wherein,
Deviation computing module, for according to the GPS pulse from described information acquisition unit, calculates GPS recurrent interval and the deviation with the base interval of safeguarding thereof;
The effective determination module of pulse, for according to deviation and predefined deviation threshold from described deviation computing module, determines whether described GPS pulse is effective;
Upgrade calibration module, in the time that described GPS pulse is effective, according to effective GPS recurrent interval and GPS absolute time, carry out base interval renewal and chronometer time calibration.
Described base interval is upgraded and is comprised: calculate described base interval and the mean value in described GPS recurrent interval, and using this mean value as described base interval, wherein, described base interval is set in advance as the quantity in described precision interval clock cycle corresponding to GPS recurrence interval.
Described chronometer time comprises second above time of level and second and following time;
The calibration of described chronometer time comprises: use GPS absolute time corresponding to described GPS pulse to upgrade described second above time of level, and from zero counting that restarts described second grade following time;
Described GPS positional information is periodical information;
Described sensor information is that periodical information at least comprises: the distance between ground speed, speed through water and the direction of geophysical vessel and the degree of depth and the towing cable of towing cable;
Described the first integrated information comprises: ground speed, speed through water, position and the direction of described geophysical vessel and each moment of obtaining these information;
Described the second integrated information comprises: the distance between the degree of depth and the towing cable of towing cable and each moment of obtaining these information.
The information in the banger moment that rifle control log-on message comprises each seismic origin;
Rifle control synchronizing information comprises the banger time at intervals of each sub-focus in each seismic origin;
Described recorded information at least comprises: rifle control synchronizing information, the first integrated information and the second integrated information.
Compared with prior art, technical solution of the present invention comprises: composite control apparatus periodically obtains gps time information, GPS positional information and sensor information; Composite control apparatus judges the validity of gps time information according to the gps time information and the predefined deviation threshold that obtain, and carries out base interval renewal and chronometer time calibration; Composite control apparatus is according to the GPS positional information, sensor information and the chronometer time that obtain, and in the acquisition moment of each information in mark the first integrated information and the second integrated information, the first integrated information of concurrent warp let-off mark and the second integrated information are given navigation workstation; Composite control apparatus obtains rifle control log-on message, extracts banger instruction and sends to rifle control system; Obtain rifle control synchronizing information, and send recorded information to composite record system.By technical scheme provided by the invention, on the one hand, avoided well use to carry out time calibration taking base interval as basic available time judgement ineffective time, and improve time precision in conjunction with chronometer time, thereby meet well the demand of high precision, highly reliable Comprehensive Control, on the other hand, it has replaced traditional multiple discrete parts jointly to coordinate the integrated control method of formation, reduce the complexity of design, debugging and deployment, thereby met well the high automation of Comprehensive Control and the demand of high integration of offshore geophysical exploration.
Other features and advantages of the present invention will be set forth in the following description, and, partly from instructions, become apparent, or understand by implementing the present invention.Object of the present invention and other advantages can be realized and be obtained by specifically noted structure in instructions, claims and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used to provide the further understanding to technical solution of the present invention, and forms a part for instructions, is used from and explains technical scheme of the present invention with the application's embodiment mono-, does not form the restriction to technical solution of the present invention.
Fig. 1 is the process flow diagram that the present invention realizes the integrated control method of offshore geophysical exploration;
Fig. 2 judges the validity of gps time information and carries out base interval renewal and the process flow diagram of the specific embodiment of chronometer time calibration in integrated control method of the present invention;
Fig. 3 is the composition structural representation of the present invention's composite control apparatus of realizing offshore geophysical exploration;
Fig. 4 be in composite control apparatus of the present invention time calibration unit composition structural representation.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing, embodiments of the invention are elaborated.It should be noted that, in the situation that not conflicting, the combination in any mutually of the feature in embodiment and embodiment in the application.
Can in the computer system such as one group of computer executable instructions, carry out in the step shown in the process flow diagram of accompanying drawing.And, although there is shown logical order in flow process, in some cases, can carry out shown or described step with the order being different from herein.
Fig. 1 is the process flow diagram that the present invention realizes the integrated control method of offshore geophysical exploration, as shown in Figure 1, comprising:
Step 101: composite control apparatus periodically obtains gps time information, GPS positional information and sensor information.Wherein,
In this step, obtaining of gps time information, GPS positional information and sensor information for those skilled in the art's conventional techniques means, repeats no more herein.It should be noted that, due to these information, the cycle of obtaining can be different separately, so this step can independently be obtained according to the cycle separately respectively for every kind of information.
In this step, gps time information is periodical information, and gps time information comprises GPS pulse and GPS absolute time, and wherein, the GPS recurrence interval is second level time, for example 1 second.GPS absolute time is the numerical value that comprises date Hour Minute Second, for example 12: 30: 30 on the 1st May in 2014.GPS absolute time is included between two GPS pulses, corresponding one by one with a rear GPS pulse in two GPS pulses that comprise it.
In this step, GPS positional information is the positional information from gps satellite, for showing the latitude coordinate at geophysical vessel place.Can obtain request by periodically sending GPS positional information to gps satellite, periodically to obtain GPS positional information from gps satellite.
In this step, sensor information is periodical information, at least comprises: the distance between ground speed, speed through water and the direction of geophysical vessel and the degree of depth and the towing cable of towing cable.Wherein, the ground speed of geophysical vessel, speed through water and direction obtain by the sensor collection being arranged on geophysical vessel, and the distance between the degree of depth and the towing cable of towing cable obtains by being arranged on sensor collection corresponding on towing cable.
Step 102: composite control apparatus judges the validity of gps time information according to the gps time information and the predefined deviation threshold that obtain, and carry out base interval renewal and chronometer time calibration.
Fig. 2 is the process flow diagram of this step specific implementation, as shown in Figure 2, comprising:
Step 201: according to the GPS pulse obtaining, calculate GPS recurrent interval and the deviation with the base interval of safeguarding thereof.Specifically,
In the time obtaining GPS pulse,
First, calculate the GPS pulse moment.Specifically, the GPS pulse moment can be the first numerical value of counting while obtaining GPS pulse.Wherein, the first counting that is counted as the quantity in precision interval clock cycle while starting to carry out from integrated control method of the present invention.The precision interval clock cycle can be 50 nanoseconds or 20 nanoseconds or 10 nanoseconds.Wherein, the conventional techniques means that the specific implementation of counting is those skilled in the art repeat no more herein.
Then, calculate the GPS recurrent interval, the GPS recurrent interval is the difference in GPS pulse moment last with it in GPS pulse moment.
Finally, calculate the deviation of the base interval of GPS recurrent interval and maintenance.
Step 202: according to the deviation and the predefined deviation threshold that obtain, determine whether GPS pulse is effective.Wherein,
Deviation threshold can be the positive and negative number percent with respect to base interval, for example, and positive and negative centesimal base interval or positive and negative 2 percent base interval.
If the deviation calculating is in the scope of deviation threshold, show that the shake in GPS recurrent interval is in normal range, be equivalent to the GPS recurrent interval effective, the GPS pulse corresponding with this GPS recurrent interval is effective, perform step 203, otherwise GPS pulse is invalid, end step 102, enters step 103.
Step 203: in the time that GPS pulse is effective, according to effective GPS recurrent interval and GPS absolute time, carry out base interval renewal and chronometer time calibration.Wherein,
Carry out before base interval renewal, base interval can be set in advance as the quantity in precision interval clock cycle corresponding to GPS recurrence interval.That is to say, base interval is set in advance as the GPS recurrent interval and does not shake ideally, the quantity in precision interval clock cycle corresponding to GPS recurrent interval.
In this step, base interval is upgraded and specifically can be comprised: calculate base interval and the mean value in GPS recurrent interval, and using this mean value as base interval.That is to say, because the numerical value setting in advance of base interval can be understood as the mean value in GPS recurrent interval ideally, so base interval be can be understood as by this calculating: the mean value in GPS recurrent interval all acquisitions, effective, thus the variation of the normal shake in GPS recurrent interval can be dynamically embodied in base interval.Wherein,
In this step, chronometer time calibration specifically can comprise: use GPS absolute time corresponding to GPS pulse to upgrade second above time of level, and restart second counting of following time of level from zero.Wherein, similar with GPS absolute time, second above time of level is the numerical value that comprises date Hour Minute Second, for example 12: 30: 30 on the 1st May in 2014.Wherein
Restart second counting of following time of level from zero and specifically refer to, restart the second counting from zero.Wherein, second be counted as the above-mentioned counting of the quantity in precision interval clock cycle while restarting the second counting.
Chronometer time was made up of second above time of level and second following time of level, and wherein, second following time of level is the numerical value of the second counting.Due to the precision interval clock cycle that the description unit of second following time of level is nanosecond, therefore correspondingly, chronometer time is also the time of nanosecond, and than the GPS absolute time of level second, the precision of its time obviously improves.
Can find out by step 201～step 203, the prerequisite of precise time calibration is, gps time information is effective, be that GPS pulse and GPS recurrent interval are effective, like this, avoid, when the GPS recurrent interval is too short, the GPS recurrent interval is long or the time receiving is leaked in GPS pulse, using invalid gps time information to carry out chronometer time calibration, thereby having ensured the accuracy of chronometer time.Further,
Due to the update method of base interval, the variation of the normal shake in GPS recurrent interval can be dynamically embodied in base interval, so validity judgement of as basis, gps time information being carried out taking base interval, realize and found that more exactly the GPS recurrent interval is too short, the GPS recurrent interval is long or situation about receiving is leaked in GPS pulse, thereby effectively ensured the accuracy of time calibration.
Step 103: composite control apparatus is according to the GPS positional information, sensor information and the chronometer time that obtain, in each information acquisition moment in mark the first integrated information and the second integrated information, the first integrated information of concurrent warp let-off mark and the second integrated information are given navigation workstation.
The first integrated information comprises: ground speed, speed through water, position and the direction of geophysical vessel and each moment of obtaining these information.The second integrated information comprises: the distance between the degree of depth and the towing cable of towing cable and each moment of obtaining these information.Wherein,
Can carry out by timestamp the acquisition moment of label information, the numerical value of chronometer time when timestamp is acquired information.
The first integrated information and the second integrated information through mark are all sent to navigation workstation, for calculating relevant information, and for example rifle control log-on message.
In this step, how to send the conventional techniques means that information is those skilled in the art to the specific implementation of navigation workstation, be not intended to limit the scope of the invention, repeat no more herein.
Step 104: composite control apparatus obtains rifle control log-on message, extracts banger instruction and sends to rifle control system; Obtain rifle control synchronizing information, and send recorded information to composite record system.Wherein,
How from navigation workstation obtain rifle control log-on message, from rifle control system acquisition rifle synchronizing information, and how to send banger instruction and recorded information, be those skilled in the art's conventional techniques means, repeat no more herein.From rifle control log-on message, extracting banger instruction is those skilled in the art's conventional techniques means, repeats no more herein.
In this step, rifle control log-on message is carried out auto-navigation workstation, the information in the banger moment that comprises each seismic origin; Rifle control synchronizing information, from rifle control system, comprises the banger time at intervals of each sub-focus in each seismic origin; Banger instruction is carried out banger for starting rifle control system according to banger moment corresponding to this instruction.Banger instruction is sent to wave detector register system simultaneously, is used to indicate wave detector register system and starts to record big gun record; Recorded information at least comprises rifle control synchronizing information, the first integrated information and the second integrated information.Wherein, recorded information is sent to composite record system, coexists in composite record system and records as relevant information together with the big gun record one of the wave detector register system corresponding with it record.
Fig. 3 is the composition structural representation of the present invention's composite control apparatus of realizing offshore geophysical exploration, as shown in Figure 3, comprises information acquisition unit, time calibration unit, informix unit, rifle control communication unit and register system communication unit, wherein,
Information acquisition unit, for periodically obtaining gps time information, GPS positional information and sensor information; Wherein, gps time information is periodical information, comprises GPS pulse and GPS absolute time; GPS positional information is periodical information; Sensor information is that periodical information at least comprises: the distance between ground speed, speed through water and the direction of geophysical vessel and the degree of depth and the towing cable of towing cable.
Time calibration, unit, judged the validity of gps time information for basis from gps time information and the predefined deviation threshold of information acquisition unit, and carried out base interval renewal and chronometer time calibration.
Fig. 4 be in composite control apparatus of the present invention time calibration unit composition structural representation, as shown in Figure 4, comprise deviation computing module, the effective determination module of pulse and upgrade calibration module, wherein,
Deviation computing module, for according to the GPS pulse from information acquisition unit, calculates GPS recurrent interval and the deviation with the base interval of safeguarding thereof.
The effective determination module of pulse, for according to deviation and predefined deviation threshold from deviation computing module, determines whether GPS pulse is effective.
Upgrade calibration module, in the time that GPS pulse is effective, according to effective GPS recurrent interval and GPS absolute time, carry out base interval renewal and chronometer time calibration, wherein, chronometer time comprises second above time of level and second and following time.Specifically,
Base interval is upgraded and is comprised: calculate base interval and the mean value in GPS recurrent interval, and using this mean value as base interval, wherein, base interval is set in advance as the quantity in precision interval clock cycle corresponding to GPS recurrence interval.
Chronometer time calibration comprises: use GPS absolute time corresponding to GPS pulse to upgrade second above time of level, and restart second counting of following time of level from zero.
Informix unit, for according to from the GPS positional information of information acquisition unit and sensor information and from the chronometer time of unit time calibration, in the acquisition moment of each information in mark the first integrated information and the second integrated information, the first integrated information of concurrent warp let-off mark and the second integrated information are given navigation workstation; Wherein, the first integrated information comprises: ground speed, speed through water, position and the direction of geophysical vessel and each moment of obtaining these information; The second integrated information comprises: the distance between the degree of depth and the towing cable of towing cable and each moment of obtaining these information.
Rifle control communication unit, for obtaining rifle control log-on message, extracts banger instruction and sends to rifle control system; The information in the banger moment that wherein, rifle control log-on message comprises each seismic origin.
Register system communication unit, for obtaining rifle control synchronizing information, and sends recorded information to composite record system; Wherein, recorded information at least comprises: rifle control synchronizing information, the first integrated information and the second integrated information.
Although the disclosed embodiment of the present invention as above, the embodiment that described content only adopts for ease of understanding the present invention, not in order to limit the present invention.Those of skill in the art under any the present invention; do not departing under the prerequisite of the disclosed spirit and scope of the present invention; can in the form of implementing and details, carry out any amendment and variation; but scope of patent protection of the present invention, still must be as the criterion with the scope that appending claims was defined.
Claims (10)
1. an integrated control method of realizing offshore geophysical exploration, is characterized in that, comprising:
Composite control apparatus periodically obtains gps time information, GPS positional information and sensor information;
Described composite control apparatus judges the validity of described gps time information according to the gps time information and the predefined deviation threshold that obtain, and carries out base interval renewal and chronometer time calibration;
Described composite control apparatus is according to the GPS positional information, sensor information and the chronometer time that obtain, in the acquisition moment of each information in mark the first integrated information and the second integrated information, the first integrated information of concurrent warp let-off mark and the second integrated information are given navigation workstation;
Described composite control apparatus obtains rifle control log-on message, extracts banger instruction and sends to rifle control system; Obtain rifle control synchronizing information, and send recorded information to composite record system.
2. integrated control method according to claim 1, is characterized in that,
Described gps time information is periodical information, comprises GPS pulse and GPS absolute time;
The validity of described judgement gps time information, and carry out base interval upgrade and chronometer time calibrate step specifically comprise:
According to the GPS pulse obtaining, calculate GPS recurrent interval and the deviation with the base interval of safeguarding thereof;
According to the deviation and the predefined deviation threshold that obtain, determine whether described GPS pulse is effective;
In the time that described GPS pulse is effective, according to effective GPS recurrent interval and GPS absolute time, carry out base interval renewal and chronometer time calibration.
3. integrated control method according to claim 2, it is characterized in that, described base interval is upgraded and is comprised: calculate described base interval and the mean value in described GPS recurrent interval, and using this mean value as described base interval, wherein, described base interval is set in advance as the quantity in described precision interval clock cycle corresponding to GPS recurrence interval.
4. integrated control method according to claim 2, is characterized in that,
Described chronometer time comprises second above time of level and second and following time;
The calibration of described chronometer time comprises: use GPS absolute time corresponding to described GPS pulse to upgrade described second above time of level, and from zero counting that restarts described second grade following time.
5. integrated control method according to claim 1, is characterized in that,
Described GPS positional information is periodical information;
Described sensor information is that periodical information at least comprises: the distance between ground speed, speed through water and the direction of geophysical vessel and the degree of depth and the towing cable of towing cable;
Described the first integrated information comprises: ground speed, speed through water, position and the direction of described geophysical vessel and each moment of obtaining these information;
Described the second integrated information comprises: the distance between the degree of depth and the towing cable of towing cable and each moment of obtaining these information;
The information in the banger moment that rifle control log-on message comprises each seismic origin;
Rifle control synchronizing information comprises the banger time at intervals of each sub-focus in each seismic origin;
Described recorded information at least comprises: rifle control synchronizing information, the first integrated information and the second integrated information.
6. a composite control apparatus of realizing offshore geophysical exploration, is characterized in that, comprises information acquisition unit, time calibration unit, informix unit, rifle control communication unit and register system communication unit, wherein,
Information acquisition unit, for periodically obtaining gps time information, GPS positional information and sensor information;
Time calibration, unit, judged the validity of described gps time information for basis from gps time information and the predefined deviation threshold of described information acquisition unit, and carried out base interval renewal and chronometer time calibration;
Informix unit, for according to from the GPS positional information of described information acquisition unit and sensor information and from the chronometer time of described time calibration of unit, in the acquisition moment of each information in mark the first integrated information and the second integrated information, the first integrated information of concurrent warp let-off mark and the second integrated information are given navigation workstation;
Rifle control communication unit, for obtaining rifle control log-on message, extracts banger instruction and sends to rifle control system;
Register system communication unit, for obtaining rifle control synchronizing information, and sends recorded information to composite record system.
7. composite control apparatus according to claim 6, is characterized in that,
Described gps time information is periodical information, comprises GPS pulse and GPS absolute time;
Unit comprised deviation computing module, the effective determination module of pulse and upgraded calibration module described time calibration, wherein,
Deviation computing module, for according to the GPS pulse from described information acquisition unit, calculates GPS recurrent interval and the deviation with the base interval of safeguarding thereof;
The effective determination module of pulse, for according to deviation and predefined deviation threshold from described deviation computing module, determines whether described GPS pulse is effective;
Upgrade calibration module, in the time that described GPS pulse is effective, according to effective GPS recurrent interval and GPS absolute time, carry out base interval renewal and chronometer time calibration.
8. composite control apparatus according to claim 7, it is characterized in that, described base interval is upgraded and is comprised: calculate described base interval and the mean value in described GPS recurrent interval, and using this mean value as described base interval, wherein, described base interval is set in advance as the quantity in described precision interval clock cycle corresponding to GPS recurrence interval.
9. composite control apparatus according to claim 7, is characterized in that,
Described chronometer time comprises second above time of level and second and following time;
The calibration of described chronometer time comprises: use GPS absolute time corresponding to described GPS pulse to upgrade described second above time of level, and from zero counting that restarts described second grade following time.
10. composite control apparatus according to claim 6, is characterized in that,
Described GPS positional information is periodical information;
Described sensor information is that periodical information at least comprises: the distance between ground speed, speed through water and the direction of geophysical vessel and the degree of depth and the towing cable of towing cable;
Described the first integrated information comprises: ground speed, speed through water, position and the direction of described geophysical vessel and each moment of obtaining these information;
Described the second integrated information comprises: the distance between the degree of depth and the towing cable of towing cable and each moment of obtaining these information;
The information in the banger moment that rifle control log-on message comprises each seismic origin;
Rifle control synchronizing information comprises the banger time at intervals of each sub-focus in each seismic origin;
Described recorded information at least comprises: rifle control synchronizing information, the first integrated information and the second integrated information.
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| CN104020489B (en) | 2017-01-18 |
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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 |