Control method, device and equipment of single air gun source ship

Abstract

The embodiment of the application discloses a control method, device and equipment of a single air gun source ship, and belongs to the field of marine oil and gas seismic exploration. The method comprises the following steps: determining a predicted shooting time of a first single air gun source ship based on the ship speed, position of the first single air gun source ship and the position of a target shooting point corresponding to the first single air gun source ship; in the case that the predicted shooting time of other single air gun source ships is received, determining a second single air gun source ship from a plurality of single air gun source ships based on the order of the predicted shooting time; and in the case that the predicted shooting time difference between the second single air gun source ship and the first single air gun source ship is less than a preset shooting time interval, controlling the first single air gun source ship to slow down. The above technical solution can make the shooting of the single air gun source ship meet the requirement of the shooting time interval limitation and ensure that the shooting point of the single air gun source ship is consistent with the target shooting point designed in advance, thereby improving the shooting operation efficiency.

Description

Technical Field

[0001] This application relates to the field of marine oil and gas seismic exploration, and in particular to a control method, device and equipment for a single-air-gun seismic source vessel. Background Technology

[0002] In marine oil and gas seismic exploration, transition zone exploration is a crucial area. Due to the influence of topographical and hydrological conditions in transition zones, large multi-gun seismic source vessels are difficult to use in these areas. Therefore, multiple single-gun seismic source vessels are typically deployed for excitation operations. To ensure that the seismic data acquired by a single gun is not affected by the excitation of other sources, after one single-gun seismic source vessel is activated, another single-gun seismic source vessel is usually activated at a fixed time interval. However, while activating the second single-gun seismic source vessel at a fixed time interval ensures that the seismic data acquired by the first vessel is not affected by the second, it does not guarantee that the activation point of the second vessel will match the pre-designed target point. This leads to inaccurate activation positions and low efficiency in the excitation operation. Therefore, there is an urgent need for a source excitation control method that satisfies both the excitation time interval requirement and ensures that the activation point matches the designed target point. Summary of the Invention

[0003] This application provides a control method, apparatus, and equipment for a single-air-gun seismic source vessel. This ensures that the excitation of the single-air-gun seismic source vessel meets the excitation time interval requirements and that the excitation point matches the pre-designed target excitation point, thereby improving the accuracy of the excitation location and increasing the efficiency of the excitation operation. The technical solution is as follows:

[0004] On the one hand, a control method for a single-air-gun seismic source vessel is provided, the method comprising:

[0005] Based on the speed and position of the first single air gun seismic source vessel and the position of the target excitation point corresponding to the first single air gun seismic source vessel, the predicted excitation time of the first single air gun seismic source vessel is determined. The first single air gun seismic source vessel is any one of the multiple single air gun seismic source vessels participating in the excitation operation in the target sea area. The predicted excitation time is used to indicate the time it takes for the first single air gun seismic source vessel to reach the target excitation point.

[0006] Upon receiving the predicted excitation times of other single-air-gun seismic source vessels, the vessels are sorted according to the order of the predicted excitation times.

[0007] Based on the sorting results, a second single air gun seismic source vessel is determined from the plurality of single air gun seismic source vessels. The second single air gun seismic source vessel is the single air gun seismic source vessel whose sorting position is before the first single air gun seismic source vessel and adjacent to the first single air gun seismic source vessel.

[0008] If the predicted excitation time difference between the second single-air gun source vessel and the first single-air gun source vessel is less than the preset excitation time interval, the first single-air gun source vessel is controlled to decelerate, so as to increase the time for the first single-air gun source vessel to reach the corresponding target excitation point and make the predicted excitation time difference not less than the preset excitation time interval.

[0009] On the other hand, a control device for a single-air-gun seismic source vessel is provided, the device comprising:

[0010] The first determining module is used to determine the predicted excitation time of the first single air gun source vessel based on the vessel speed and position of the first single air gun source vessel and the position of the target excitation point corresponding to the first single air gun source vessel. The first single air gun source vessel is any one of the multiple single air gun source vessels participating in the excitation operation in the target sea area. The predicted excitation time is used to indicate the time it takes for the first single air gun source vessel to reach the target excitation point.

[0011] The sorting module is used to sort the multiple single-airgun seismic source vessels according to the order of the predicted excitation times received from other single-airgun seismic source vessels.

[0012] The second determining module is used to determine the second single air gun seismic source vessel from the plurality of single air gun seismic source vessels based on the sorting result. The second single air gun seismic source vessel is the single air gun seismic source vessel whose sorting position is before the first single air gun seismic source vessel and adjacent to the first single air gun seismic source vessel.

[0013] The first control module is used to control the first single-air gun source ship to decelerate when the predicted excitation time difference between the second single-air gun source ship and the first single-air gun source ship is less than the preset excitation time interval, so as to increase the time for the first single-air gun source ship to reach the corresponding target excitation point so that the predicted excitation time difference is not less than the preset excitation time interval.

[0014] In some embodiments, the first determining module is configured to determine the distance between the first single-airgun seismic source vessel and the target excitation point based on the position of the first single-airgun seismic source vessel and the position of the target excitation point corresponding to the first single-airgun seismic source vessel; and to determine the predicted excitation time of the first single-airgun seismic source vessel based on the distance between the first single-airgun seismic source vessel and the target excitation point and the speed of the first single-airgun seismic source vessel.

[0015] In some embodiments, the first control module is configured to, based on the sorting result, determine a third single-airgun seismic source vessel from the plurality of single-airgun seismic source vessels when the predicted excitation time difference between the second single-airgun seismic source vessel and the first single-airgun seismic source vessel is less than a preset excitation time interval; the third single-airgun seismic source vessel is a single-airgun seismic source vessel whose sorting position is after the first single-airgun seismic source vessel and adjacent to the first single-airgun seismic source vessel; determine the speed of the third single-airgun seismic source vessel as the first suggested speed of the first single-airgun seismic source vessel; and control the first single-airgun seismic source vessel to decelerate based on the first suggested speed.

[0016] In some embodiments, the apparatus further includes:

[0017] The second control module is used to control the speed of the first single-air gun seismic source vessel to remain constant when the predicted excitation time difference between the second single-air gun seismic source vessel and the first single-air gun seismic source vessel is not less than the preset excitation time interval; or, to control the speed of the first single-air gun seismic source vessel to increase its speed so as to enable the first single-air gun seismic source vessel to excite at the target excitation point in advance by reducing the time it takes for the first single-air gun seismic source vessel to reach the corresponding target excitation point.

[0018] In some embodiments, the second control module is configured to determine the speed of the second single-air-gun seismic source vessel as the second suggested speed of the first single-air-gun seismic source vessel; and based on the second suggested speed, control the speed increase of the first single-air-gun seismic source vessel.

[0019] In some embodiments, the apparatus further includes:

[0020] The third control module is used to control the first single-air gun source vessel to pause excitation when it reaches the corresponding target excitation point, provided that the predicted excitation time difference between the second single-air gun source vessel and the first single-air gun source vessel is much smaller than the preset excitation time interval.

[0021] In some embodiments, the first determining module is further configured to, upon receiving the actual excitation time of the second single-air gun source ship, update the predicted excitation time of the first single-air gun source ship based on the position of the target excitation point corresponding to the first single-air gun source ship and the updated speed and position of the first single-air gun source ship.

[0022] The first control module is further configured to: control the speed of the first single-airgun seismic source vessel to remain constant or increase when the difference between the actual excitation time and the predicted excitation time is not less than the preset excitation time interval; control the speed of the first single-airgun seismic source vessel to decrease when the difference between the actual excitation time and the predicted excitation time is less than the preset excitation time interval; and control the first single-airgun seismic source vessel to pause excitation when it reaches the corresponding target excitation point when the difference between the actual excitation time and the predicted excitation time is much smaller than the preset excitation time interval.

[0023] In some embodiments, the apparatus further includes:

[0024] The third determining module is used to determine the excitation order of the first single-airgun seismic source vessel based on the sorting result; if the first single-airgun seismic source vessel is the first to be excited, control the speed of the first single-airgun seismic source vessel to remain unchanged; if the first single-airgun seismic source vessel is not the first to be excited, perform the step of determining the second single-airgun seismic source vessel from the plurality of single-airgun seismic source vessels based on the sorting result.

[0025] On the other hand, a computer device is provided, the computer device including a processor and a memory, the memory storing at least one computer program, the at least one computer program being loaded and executed by the processor to implement the control method of the single air gun seismic source ship as described above.

[0026] On the other hand, a computer-readable storage medium is provided, wherein at least one computer program is stored in the computer-readable storage medium, the at least one computer program being loaded and executed by a processor to implement the control method of the single air gun seismic source ship as described above.

[0027] On the other hand, a computer program product is provided, including a computer program loaded and executed by a processor to implement the control method for a single-air-gun seismic source vessel as described above.

[0028] This application provides a control method for a single-airgun seismic source vessel. For any single-airgun seismic source vessel among multiple vessels participating in a target sea area excitation operation, the vessel can determine its predicted excitation time based on its own speed, position, and the position of the target excitation point. Upon receiving predicted excitation times from other vessels, the method can determine the predicted excitation time difference between the single-airgun seismic source vessel and its adjacent vessels based on the predicted excitation times of each vessel. If the predicted excitation time difference does not meet the preset excitation time interval, the method reduces the vessel's speed to extend its time to reach the target excitation point. This ensures that the excitation of the single-airgun seismic source vessel meets the excitation time interval requirements while guaranteeing that the excitation point matches the pre-designed target excitation point, thereby improving the accuracy of the excitation location and increasing the efficiency of the excitation operation. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of an implementation environment provided in an embodiment of this application;

[0031] Figure 2 This is a flowchart of a control method for a single-air-gun seismic source ship provided in an embodiment of this application;

[0032] Figure 3 This is a flowchart of another control method for a single-air-gun seismic source ship provided in an embodiment of this application;

[0033] Figure 4 This is a schematic diagram of the coordinated excitation of multiple single-air-gun seismic source ships provided in an embodiment of this application;

[0034] Figure 5 This is a suggested speed display diagram provided in an embodiment of this application;

[0035] Figure 6 This is a schematic diagram of the structure of a control device for a single-air-gun seismic source ship provided in an embodiment of this application;

[0036] Figure 7 This is a schematic diagram of the control device for another single-air-gun seismic source ship provided in the embodiments of this application;

[0037] Figure 8This is a schematic diagram of the structure of a terminal provided in an embodiment of this application;

[0038] Figure 9 This is a schematic diagram of the structure of a server provided in an embodiment of this application. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0040] It is understood that the terms "first," "second," etc., used in this application may be used to describe various concepts herein, but unless otherwise specified, these concepts are not limited by these terms. These terms are only used to distinguish one concept from another. For example, without departing from the scope of this application, a first single-airgun seismic source vessel may be referred to as a second single-airgun seismic source vessel, and similarly, a second single-airgun seismic source vessel may be referred to as a first single-airgun seismic source vessel.

[0041] It should be noted that all information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.), and signals involved in this application have been authorized by the user or fully authorized by all parties, and the collection, use, and processing of related data must comply with the relevant laws, regulations, and standards of the relevant countries and regions. For example, the location of the single-airgun seismic source vessel and the location of the target excitation point involved in this application were obtained with full authorization.

[0042] The implementation environment of the embodiments of this application is described below.

[0043] Figure 1 This is a schematic diagram of an implementation environment provided in an embodiment of this application. See also... Figure 1 The implementation environment includes: terminal 101, server 102, and multiple single-air-gun seismic source vessels 103. Terminal 101 can be connected to server 102 via wireless or wired network.

[0044] Optionally, terminal 101 is at least one of a smartphone, desktop computer, laptop, and tablet computer. Terminal 101 is equipped with an application program featuring an integrated navigation system, which can display the status information of the single-airgun seismic source vessel 103, such as its location and speed. Terminal 101 can refer to one of multiple terminals; this embodiment uses terminal 101 as an example only. Those skilled in the art will understand that the number of terminals can be more or less. For example, there may be only a few terminals, or dozens or hundreds, or even more. This disclosure does not limit the number or type of terminals.

[0045] Optionally, server 102 can be an independent physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN (Content Delivery Network), and big data and artificial intelligence platforms.

[0046] Optionally, the single-airgun seismic source vessel 103 is equipped with a global positioning system (GPS), a relative positioning system (GPS), an gyrocompass, and a low-latency data transmission radio. The GPS and relative positioning systems provide the position information of the single-airgun seismic source vessel 102, while the gyrocompass provides the heading information of the single-airgun seismic source vessel 103. The low-latency data transmission radio is used to synchronize the status information of multiple single-airgun seismic source vessels 103 in real time, such as position, speed, and predicted excitation time.

[0047] Optionally, the control method for the single air gun seismic source ship provided in this application embodiment can be executed by the terminal 101 alone, by the server 102 alone, or by the terminal 101 and the server 102 interacting.

[0048] In some embodiments, when the terminal 101 executes the control method for a single-air-gun seismic source vessel independently, the terminal 101 can run an application equipped with an integrated navigation system offline. This application can calculate the predicted excitation time of each single-air-gun seismic source vessel 103 based on the integrated navigation system, and then control the single-air-gun seismic source vessel 103 to adjust its speed based on the predicted excitation time difference between the multiple single-air-gun seismic source vessels 103 and a preset excitation time interval.

[0049] In some embodiments, when the server 102 executes the control method of the single air gun seismic source vessel alone, the server 102 can perform data calculations independently. That is, the server 102 can obtain the predicted excitation time of each single air gun seismic source vessel 103 uploaded by other devices, and then control the single air gun seismic source vessel 103 to adjust its speed based on the predicted excitation time difference between multiple single air gun seismic source vessels 103 and the preset excitation time interval.

[0050] In some embodiments, when the terminal 101 and server 102 interactively execute the control method for a single-air-gun seismic source vessel, an application running on the terminal 101 equipped with an integrated navigation system is associated with the server 102, which provides background services. The terminal 101 can upload the predicted excitation times of multiple single-air-gun seismic source vessels 103 to the server 102 through this application. The server 102 can determine the speed adjustment command for each single-air-gun seismic source vessel 103 based on the predicted excitation time difference and a preset excitation time interval between the multiple single-air-gun seismic source vessels 103, and send the speed adjustment command to the terminal 101, which then controls the single-air-gun seismic source vessel 103 to adjust its speed.

[0051] Optionally, server 102 undertakes the main computing work and terminal 101 undertakes the secondary computing work; or, server 102 undertakes the secondary computing work and terminal 101 undertakes the main computing work; or, server 102 and terminal 101 collaborate on computing using a distributed computing architecture.

[0052] It should be noted that in the following embodiments, the control method of the single air gun seismic source ship provided in the embodiments of this application is described as an example of the terminal executing the control method of the single air gun seismic source ship alone.

[0053] Figure 2 This is a flowchart illustrating a control method for a single-air-gun seismic source vessel provided in an embodiment of this application. This embodiment is executed via a terminal, as shown below. Figure 2 The method includes:

[0054] 201. The terminal determines the predicted excitation time of the first single air gun source vessel based on the vessel speed and position of the first single air gun source vessel and the position of the target excitation point corresponding to the first single air gun source vessel. The first single air gun source vessel is any single air gun source vessel among the multiple single air gun source vessels participating in the excitation operation in the target sea area.

[0055] In this embodiment, before conducting seismic exploration of the target sea area, a series of survey lines are typically designed on a nautical chart based on factors such as the geological targets and scope requirements of the target sea area. Correspondingly, during seismic exploration of the target sea area, each single-airgun seismic source vessel participating in the excitation operation can proceed normally along its selected survey line. Each single-airgun seismic source vessel is responsible for a different survey line; that is, multiple single-airgun seismic source vessels will navigate at sea according to their respective assigned survey lines. Furthermore, during the voyage, multiple single-airgun seismic source vessels will excite the seismic source according to a preset excitation time interval, thereby acquiring complete and systematic seismic data.

[0056] For any single-airgun seismic source vessel among multiple single-airgun seismic source vessels participating in the excitation operation in the target sea area, during the voyage of the single-airgun seismic source vessel along the survey line, the terminal can obtain the real-time position and real-time speed of the single-airgun seismic source vessel based on the positioning equipment and speed measurement equipment installed on the single-airgun seismic source vessel. Then, based on the speed and position of the single-airgun seismic source vessel at the current moment and the position of the target excitation point corresponding to the single-airgun seismic source vessel, the predicted excitation time of the single-airgun seismic source vessel at the current moment can be calculated. The target excitation point is a pre-designed excitation point on the survey line managed by the single-airgun seismic source vessel. The predicted excitation time indicates the time required for the single-airgun seismic source vessel to reach the target excitation point. It should be noted that there can be one or more pre-designed excitation points on a survey line; this application embodiment does not impose this limitation.

[0057] 202. Upon receiving the predicted excitation times of other single-air-gun seismic source vessels, the terminal sorts the multiple single-air-gun seismic source vessels according to the order of their predicted excitation times.

[0058] In this embodiment, the terminal, acting as an external device for each single-airgun seismic source vessel, calculates the predicted excitation time of the single-airgun seismic source vessel using the integrated navigation system. It then broadcasts this predicted excitation time using an external data transmission radio (digital wireless data transmission radio) connected to the single-airgun seismic source vessel, ensuring that other single-airgun seismic source vessels can receive it. Accordingly, taking the first single-airgun seismic source vessel as an example, the terminal connected to it can receive the predicted excitation times of the other single-airgun seismic source vessels (excluding the first vessel) among the multiple single-airgun seismic source vessels.

[0059] Because the speeds and positions of the multiple single-airgun seismic source vessels are different, the time it takes for each vessel to reach its corresponding target excitation point also varies; that is, the predicted excitation times of the multiple single-airgun seismic source vessels are different. Accordingly, when the terminal connected to the first single-airgun seismic source vessel receives the predicted excitation times of the other vessels, the terminal can sort the vessels according to the order of their predicted excitation times. The shorter the predicted excitation time indication, the earlier the predicted excitation time, and the earlier the corresponding single-airgun seismic source vessel is ranked.

[0060] 203. Based on the sorting results, the terminal determines the second single air gun seismic source vessel from multiple single air gun seismic source vessels. The second single air gun seismic source vessel is the single air gun seismic source vessel whose sorting position is before the first single air gun seismic source vessel and adjacent to the first single air gun seismic source vessel.

[0061] In this embodiment, during navigation, multiple single-airgun seismic source vessels will excite their seismic sources according to a preset excitation time interval, that is, the multiple single-airgun seismic source vessels will excite their seismic sources sequentially according to a certain excitation order. Since the sorting result is obtained based on the time taken for the multiple single-airgun seismic source vessels to reach their respective target excitation points, the sorting result can reflect the excitation order of the multiple single-airgun seismic source vessels. In order to ensure that the multiple single-airgun seismic source vessels can meet the preset excitation time interval requirement when exciting sequentially according to the excitation order, the terminal can determine the predicted excitation time difference between two single-airgun seismic source vessels with adjacent excitation orders. Accordingly, taking the first single-airgun seismic source vessel as an example, the terminal can first determine the single-airgun seismic source vessel whose sorting position is before the first single-airgun seismic source vessel and adjacent to the first single-airgun seismic source vessel, that is, the second single-airgun seismic source vessel, based on the sorting result.

[0062] 204. If the predicted excitation time difference between the second single-air gun source ship and the first single-air gun source ship is less than the preset excitation time interval, the terminal controls the first single-air gun source ship to decelerate, so as to increase the time for the first single-air gun source ship to reach the corresponding target excitation point so that the predicted excitation time difference is not less than the preset excitation time interval.

[0063] In this embodiment, since the second single-airgun seismic source vessel is the one that is excited before the first single-airgun seismic source vessel, if the predicted excitation time difference between the second and first single-airgun seismic source vessels is less than the preset excitation time interval, it indicates that the predicted excitation time difference between the second and first single-airgun seismic source vessels does not meet the limitation requirement of the preset excitation time interval. To increase the predicted excitation time difference between the second and first single-airgun seismic source vessels so that it is not less than the preset excitation time interval, the terminal can control the first single-airgun seismic source vessel to decelerate, thereby increasing the time it takes for the first single-airgun seismic source vessel to reach the corresponding target excitation point, thus increasing the predicted excitation time difference and making it meet the limitation requirement of the preset excitation time interval.

[0064] This application provides a control method for a single-airgun seismic source vessel. For any single-airgun seismic source vessel among multiple vessels participating in a target sea area excitation operation, the vessel can determine its predicted excitation time based on its own speed, position, and the position of the target excitation point. Upon receiving predicted excitation times from other vessels, the method can determine the predicted excitation time difference between the single-airgun seismic source vessel and its adjacent vessels based on the predicted excitation times of each vessel. If the predicted excitation time difference does not meet the preset excitation time interval, the method reduces the vessel's speed to extend its time to reach the target excitation point. This ensures that the excitation of the single-airgun seismic source vessel meets the excitation time interval requirements while guaranteeing that the excitation point matches the pre-designed target excitation point, thereby improving the accuracy of the excitation location and increasing the efficiency of the excitation operation.

[0065] The above Figure 2 The main flow of the control method for a single air gun seismic source vessel provided in the embodiments of this application is illustrated by way of example. The control scheme of the single air gun seismic source vessel will be described in detail below. Figure 3 This is a flowchart of another control method for a single-air-gun seismic source vessel provided in an embodiment of this application. This method is executed by a terminal. (See also...) Figure 3 The method includes:

[0066] 301. The terminal determines the predicted excitation time of the first single air gun source vessel based on the vessel speed and position of the first single air gun source vessel and the position of the target excitation point corresponding to the first single air gun source vessel. The first single air gun source vessel is any single air gun source vessel among the multiple single air gun source vessels participating in the excitation operation in the target sea area.

[0067] In this embodiment, step 301 is the same as step 201 described above, and will not be repeated here.

[0068] In some embodiments, the terminal can determine the distance based on its own position and the target excitation point position, and then determine the time to reach the target excitation point based on the distance and the ship speed. Accordingly, the terminal determines the distance between the first single-airgun source ship and the target excitation point based on the position of the first single-airgun source ship and the position of the target excitation point corresponding to the first single-airgun source ship; and determines the predicted excitation time of the first single-airgun source ship based on the distance between the first single-airgun source ship and the target excitation point and the ship speed of the first single-airgun source ship. The first single-airgun source ship navigates along its assigned survey line, and the target excitation point corresponding to the first single-airgun source ship is located on that survey line. Since the survey line is a straight line, the terminal can calculate the straight-line distance between the first single-airgun source ship and the target excitation point based on the position of the first single-airgun source ship and the position of the target excitation point, and then divide this straight-line distance by the ship speed of the first single-airgun source ship to obtain the time it takes for the first single-airgun source ship to travel to the target excitation point on the survey line, which is the predicted excitation time.

[0069] It should be noted that the predicted excitation time calculated by the external terminal of each single-airgun seismic source vessel participating in the excitation operation is based on the same time reference. Typically, satellite timing is used to synchronize the integrated navigation system equipped on the external terminals of all single-airgun seismic source vessels, with a timing accuracy better than 10 microseconds.

[0070] 302. Upon receiving the predicted excitation times of other single-air-gun seismic source vessels, the terminal sorts the multiple single-air-gun seismic source vessels according to the order of their predicted excitation times.

[0071] In this embodiment, the terminal acts as an external device for each single-airgun seismic source vessel. After calculating the predicted excitation time of any single-airgun seismic source vessel through the integrated navigation system, it can broadcast the predicted excitation time of that single-airgun seismic source vessel using a digital wireless data transmission radio connected to that vessel. This ensures that other single-airgun seismic source vessels can receive the predicted excitation time. Since the speeds and positions of the multiple single-airgun seismic source vessels are different, the time it takes for each vessel to reach its corresponding target excitation point is also different, meaning that the predicted excitation times of the multiple vessels are different. Accordingly, when the terminal connected to the first single-airgun seismic source vessel receives the predicted excitation times of the other vessels, the terminal can sort the vessels according to the order of their predicted excitation times. The shorter the predicted excitation time indication, the earlier the predicted excitation time, and the earlier the corresponding single-airgun seismic source vessel is in the order of its predicted excitation time.

[0072] For example, ship A's predicted activation time is 2 seconds, ship B's is 10 seconds, and ship C's is 5 seconds. Based on these predicted activation times, ship A is expected to arrive at its target activation point in 2 seconds, ship C in 5 seconds, and ship B in 10 seconds. Therefore, the order is: ship A, ship C, ship B.

[0073] 303. Based on the sorting results, the terminal determines the excitation sequence of the first single air gun source ship.

[0074] In this embodiment, during navigation, multiple single-airgun seismic source vessels will excite their seismic sources according to a preset excitation time interval, that is, the multiple single-airgun seismic source vessels will excite their seismic sources sequentially according to a certain excitation order. Since the sorting result is obtained based on the time taken for the multiple single-airgun seismic source vessels to reach their respective target excitation points, the terminal can determine the excitation order of the multiple single-airgun seismic source vessels based on this sorting result. In other words, the terminal can determine the arrangement order of the multiple airgun seismic source vessels in the sorting result as the excitation order of the multiple single-airgun seismic source vessels. Accordingly, the excitation order of the first single-airgun seismic source vessel is the arrangement order of the first single-airgun seismic source vessel in the sorting result.

[0075] It should be noted that if the first single air gun source ship is the first to be excited, the terminal can execute step 304 below; otherwise, the terminal can execute step 305 below.

[0076] 304. When the first single-air gun seismic source ship is the first single-air gun seismic source ship to be activated, the terminal control keeps the speed of the first single-air gun seismic source ship unchanged.

[0077] In this embodiment, when the first single-airgun seismic source vessel is the first to be activated, it indicates that the first single-airgun seismic source vessel is the first to be activated among multiple single-airgun seismic source vessels. Therefore, the terminal does not need to consider whether the preset activation time interval requirement is met. Accordingly, the terminal can control the speed of the first single-airgun seismic source vessel to remain constant, that is, control the first single-airgun seismic source vessel to sail normally at the current speed.

[0078] 305. If the first single air gun source vessel is not the first single air gun source vessel to be excited, the terminal determines the second single air gun source vessel from multiple single air gun source vessels based on the sorting result. The second single air gun source vessel is the single air gun source vessel whose sorting position is before the first single air gun source vessel and adjacent to the first single air gun source vessel.

[0079] In this embodiment, if the first single-airgun seismic source vessel is not the first to fire, it indicates that the first single-airgun seismic source vessel is not the first to fire among multiple single-airgun seismic source vessels. Therefore, the terminal needs to consider whether the preset firing time interval requirement is met when the first single-airgun seismic source vessel travels at its current speed to reach the corresponding target firing point and fires. Accordingly, the terminal can first determine the single-airgun seismic source vessel that is ranked before and adjacent to the first single-airgun seismic source vessel from among the multiple single-airgun seismic source vessels, i.e., the second single-airgun seismic source vessel, based on the ranking result. Since the second single-airgun seismic source vessel fires before the first single-airgun seismic source vessel, the terminal can determine the predicted firing time difference between the second and first single-airgun seismic source vessels based on the predicted firing time of the second single-airgun seismic source vessel and the predicted firing time of the first single-airgun seismic source vessel. If the first single air gun source vessel is to reach the corresponding target excitation point at its current speed and meet the preset excitation time interval requirement, then the predicted excitation time difference between the second and first single air gun source vessels must be no less than the preset excitation time interval.

[0080] It should be noted that if the predicted excitation time difference between the second and first single-air gun source vessels is less than the preset excitation time interval, the terminal executes step 306; if the predicted excitation time difference between the second and first single-air gun source vessels is not less than the preset excitation time interval, the terminal executes step 307; if the predicted excitation time difference between the second and first single-air gun source vessels is much less than the preset excitation time interval, the terminal executes step 308.

[0081] 306. If the predicted excitation time difference between the second single-air gun source ship and the first single-air gun source ship is less than the preset excitation time interval, the terminal controls the first single-air gun source ship to decelerate, so as to increase the time for the first single-air gun source ship to reach the corresponding target excitation point so that the predicted excitation time difference is not less than the preset excitation time interval.

[0082] In this embodiment, when the predicted excitation time difference between the second and first single-airgun seismic source vessels is less than the preset excitation time interval, it indicates that when the first single-airgun seismic source vessel travels at its current speed to reach the corresponding target excitation point for excitation, the preset excitation time interval requirement cannot be met. Therefore, in order to ensure that the excitation time difference between the second and first single-airgun seismic source vessels is not less than the preset excitation time interval when the first single-airgun seismic source vessel excites at the corresponding target excitation point, the terminal can control the first single-airgun seismic source vessel to decelerate, thereby increasing the time it takes for the first single-airgun seismic source vessel to reach the corresponding target excitation point, thus increasing the predicted excitation time difference and ensuring that it is not less than the preset excitation time interval.

[0083] Optionally, if the predicted excitation time difference between the second and first single-airgun seismic source vessels is less than a preset excitation time interval, the terminal can display a prompt message instructing the operator to reduce the speed of the first single-airgun seismic source vessel. In response to the operator's confirmation of the prompt message, the terminal can control the first single-airgun seismic source vessel to decelerate. Alternatively, the operator can manually operate the power unit of the first single-airgun seismic source vessel to control its deceleration.

[0084] In some embodiments, when reducing the speed of the first single-airgun seismic source vessel, the terminal can also determine a suggested speed to accurately control the deceleration of the first single-airgun seismic source vessel. Correspondingly, if the predicted excitation time difference between the second and first single-airgun seismic source vessels is less than a preset excitation time interval, the terminal determines a third single-airgun seismic source vessel from among multiple single-airgun seismic source vessels based on the ranking result; determines the speed of the third single-airgun seismic source vessel as the first suggested speed of the first single-airgun seismic source vessel; and controls the first single-airgun seismic source vessel to decelerate based on the first suggested speed. The third single-airgun seismic source vessel is the single-airgun seismic source vessel ranked after the first single-airgun seismic source vessel and adjacent to the first single-airgun seismic source vessel, meaning its excitation order follows that of the first single-airgun seismic source vessel. To prevent the predicted excitation time difference between the first and third single-airgun seismic source vessels from falling below the preset excitation time interval after reducing the speed of the first single-airgun seismic source vessel, the terminal can determine the speed of the third single-airgun seismic source vessel as the recommended speed when the first single-airgun seismic source vessel accelerates, i.e., the first recommended speed. When controlling the deceleration of the first single-airgun seismic source vessel, by determining the speed of the other single-airgun seismic source vessel whose predicted excitation time is closest to that of the first single-airgun seismic source vessel but whose excitation time is later, as the recommended speed, it is possible to avoid the situation where the speed of the first single-airgun seismic source vessel decreases too much, causing the excitation time difference between the two vessels to not meet the preset excitation time interval.

[0085] 307. If the predicted excitation time difference between the second single air gun source ship and the first single air gun source ship is not less than the preset excitation time interval, the speed of the first single air gun source ship is kept constant, or the speed of the first single air gun source ship is increased, so as to reduce the time it takes for the first single air gun source ship to reach the corresponding target excitation point and thus enable the first single air gun source ship to excite at the target excitation point in advance.

[0086] In this embodiment, when the predicted excitation time difference between the second and first single-airgun seismic source vessels is not less than a preset excitation time interval, it indicates that when the first single-airgun seismic source vessel travels at its current speed to reach the corresponding target excitation point for excitation, the preset excitation time interval requirement can be met. Therefore, the terminal can control the speed of the first single-airgun seismic source vessel to remain constant. Furthermore, to further improve the excitation efficiency of multiple single-airgun seismic source vessels, the terminal can also control the speed of the first single-airgun seismic source vessel to increase its speed. This reduces the time it takes for the first single-airgun seismic source vessel to reach the corresponding target excitation point while still meeting the preset excitation time interval requirement, thereby enabling the first single-airgun seismic source vessel to reach the target excitation point earlier and thus improving the excitation efficiency of multiple single-airgun seismic source vessels.

[0087] In some embodiments, when increasing the speed of the first single-airgun seismic source vessel, the terminal can also determine a suggested speed to accurately control the acceleration of the first single-airgun seismic source vessel. Correspondingly, the terminal determines the speed of the second single-airgun seismic source vessel as the second suggested speed of the first single-airgun seismic source vessel; based on the second suggested speed, the terminal controls the acceleration of the first single-airgun seismic source vessel. The second single-airgun seismic source vessel is the one whose sequence position is before and adjacent to the first single-airgun seismic source vessel. To ensure that the predicted excitation time difference between the second and first single-airgun seismic source vessels is still not less than a preset excitation time interval after increasing the speed of the first single-airgun seismic source vessel, the terminal can determine the speed of the second single-airgun seismic source vessel as the suggested speed when the first single-airgun seismic source vessel accelerates, i.e., the second suggested speed. When controlling the speed increase of the first single air gun source ship, the speed of the other single air gun source ship whose predicted excitation time is closest to and earlier than the first single air gun source ship can be determined as the recommended speed. This can prevent the speed of the first single air gun source ship from increasing too much, which would cause the excitation time difference between the two ships to not meet the preset excitation time interval.

[0088] 308. When the predicted excitation time difference between the second single-air gun source ship and the first single-air gun source ship is much smaller than the preset excitation time interval, the first single-air gun source ship is controlled to pause excitation when it reaches the corresponding target excitation point.

[0089] In this embodiment, when the predicted excitation time difference between the second and first single-airgun seismic source vessels is much smaller than the preset excitation time interval, it indicates that the predicted excitation time difference between the second and first single-airgun seismic source vessels is too short. If the first single-airgun seismic source vessel is to travel at its current speed to the corresponding target excitation point to meet the preset excitation time interval requirement, the terminal needs to control the speed of the first single-airgun seismic source vessel to decrease rapidly within a short period. However, deceleration is a slow adjustment process; that is, the terminal cannot instantly reduce the speed of the first single-airgun seismic source vessel to a small value. Therefore, when the predicted excitation time difference is much smaller than the preset excitation time interval, even if the terminal controls the first single-airgun seismic source vessel to decelerate, it is impossible to ensure that the predicted excitation time difference between the second and first single-airgun seismic source vessels is not less than the preset excitation time interval. In this situation, in order to prevent the activation of the first single airgun seismic source vessel at the corresponding target activation point from affecting the seismic data acquisition when the second single airgun seismic source vessel is activated, the terminal can control the first single airgun seismic source vessel to pause activation when it reaches the corresponding target activation point. That is, control the first single airgun seismic source vessel to fire dry at the target activation point, thereby ensuring the quality of seismic data acquisition.

[0090] In some embodiments, when any one of the multiple single-airgun seismic source vessels actually fires, the actual firing time of that single-airgun seismic source vessel can be broadcast to the other single-airgun seismic source vessels that have not yet fired via a digital wireless data transmission radio connected to that vessel. This allows the other single-airgun seismic source vessels to update their predicted firing times based on the actual firing time. Correspondingly, when the second single-airgun seismic source vessel fires at the corresponding target firing point, the external terminal of the second single-airgun seismic source vessel can use its external digital transmission radio to send its actual firing time to the external terminal of the first single-airgun seismic source vessel. In other words, upon receiving the actual excitation time of the second single airgun seismic source vessel, the terminal updates the predicted excitation time of the first single airgun seismic source vessel based on the position of the target excitation point corresponding to the first single airgun seismic source vessel and the updated speed and position of the first single airgun seismic source vessel. If the difference between the actual excitation time and the updated predicted excitation time is not less than a preset excitation time interval, the speed of the first single airgun seismic source vessel is kept constant or increased. If the difference between the actual excitation time and the updated predicted excitation time is less than the preset excitation time interval, the speed of the first single airgun seismic source vessel is decreased. If the difference between the actual excitation time and the updated predicted excitation time is much less than the preset excitation time interval, the first single airgun seismic source vessel pauses excitation upon reaching the corresponding target excitation point. The specific process by which the terminal determines the updated predicted excitation time and controls the speed of the first single airgun seismic source vessel to increase or decrease is the same as the steps described above and will not be repeated here. By updating the predicted excitation time of the first single air gun source ship based on the actual excitation time of the second single air gun source ship that was excited before the first single air gun source ship, the predicted excitation time difference between the second single air gun source ship and the first single air gun source ship can be accurately determined. This ensures that the predicted excitation time difference meets the preset excitation time interval limit requirements, thus guaranteeing the accuracy of the excitation position of the first single air gun source ship.

[0091] For example, Figure 4 This is a schematic diagram illustrating the coordinated excitation of multiple single-airgun seismic source vessels according to an embodiment of this application. For example... Figure 4 As shown, the multiple single-air-gun seismic source vessels participating in the excitation operation in the target sea area include vessel A, vessel B, and vessel C, and the excitation sequence of these three single-air-gun seismic source vessels is: vessel A, vessel B, vessel C. The excitation location of the target point is the location of the target excitation point. Tab is the predicted excitation time difference between vessel A and vessel B, Tbc is the predicted excitation time difference between vessel B and vessel C. Tmix is ​​the preset excitation time interval. According to... Figure 4As shown in the navigation data of ships A, B, and C, the predicted excitation time difference between ships A and B, and between ships B and C, are both greater than the preset excitation time interval. This means that the terminal can maintain the constant speeds of ships A, B, and C. After ship A reaches the target excitation point and is activated, the external terminal of ship B can update its predicted excitation time based on ship A's actual excitation time, and then determine whether the updated predicted excitation time difference between ships A and B is not less than the preset excitation time interval. The same applies to ship C after ship B reaches the target excitation point and is activated. To facilitate understanding of the speed adjustment process in this embodiment, Figure 5 This is a suggested speed display diagram provided in an embodiment of this application, such as... Figure 5 As shown, Figure 5 The black triangle in the middle represents the first single airgun seismic source vessel. When the black triangle is within the gray area, it indicates that the speed of the first single airgun seismic source vessel is within a reasonable range, meaning that reaching the target firing point at this time will meet the preset firing time interval requirement. If the black triangle moves upward or downward beyond the gray area, it indicates that the speed of the first single airgun seismic source vessel is too fast or too slow. Too fast a speed will cause the firing of the first single airgun seismic source vessel to fail to meet the preset firing time interval requirement, while too slow a speed may cause the firing of subsequent single airgun seismic source vessels to fail to meet the preset firing time interval requirement.

[0092] This application provides a control method for a single-airgun seismic source vessel. For any single-airgun seismic source vessel among multiple vessels participating in a target sea area excitation operation, the vessel can determine its predicted excitation time based on its own speed, position, and the position of the target excitation point. Upon receiving predicted excitation times from other vessels, the method can determine the predicted excitation time difference between the single-airgun seismic source vessel and its adjacent vessels based on the predicted excitation times of each vessel. If the predicted excitation time difference does not meet the preset excitation time interval, the method reduces the vessel's speed to extend its time to reach the target excitation point. This ensures that the excitation of the single-airgun seismic source vessel meets the excitation time interval requirements while guaranteeing that the excitation point matches the pre-designed target excitation point, thereby improving the accuracy of the excitation location and increasing the efficiency of the excitation operation.

[0093] Figure 6 This is a schematic diagram of the control device for a single-air-gun seismic source ship provided in an embodiment of this application. See also... Figure 6 The device includes: a first determining module 601, a sorting module 602, a second determining module 603, and a first control module 604.

[0094] The first determining module 601 is used to determine the predicted excitation time of the first single air gun source vessel based on the vessel speed and position of the first single air gun source vessel and the position of the target excitation point corresponding to the first single air gun source vessel. The first single air gun source vessel is any single air gun source vessel among multiple single air gun source vessels participating in the excitation operation in the target sea area. The predicted excitation time is used to indicate the time it takes for the first single air gun source vessel to reach the target excitation point.

[0095] The sorting module 602 is used to sort multiple single-airgun seismic source vessels based on the order of their predicted excitation times when the predicted excitation times of other single-airgun seismic source vessels are received.

[0096] The second determining module 603 is used to determine the second single air gun source vessel from multiple single air gun source vessels based on the sorting result. The second single air gun source vessel is the single air gun source vessel whose sorting position is before the first single air gun source vessel and adjacent to the first single air gun source vessel.

[0097] The first control module 604 is used to control the first single-air gun source ship to decelerate when the predicted excitation time difference between the second single-air gun source ship and the first single-air gun source ship is less than the preset excitation time interval, so as to increase the time for the first single-air gun source ship to reach the corresponding target excitation point so that the predicted excitation time difference is not less than the preset excitation time interval.

[0098] In some embodiments, the first determining module 601 is used to determine the distance between the first single air gun source ship and the target excitation point based on the position of the first single air gun source ship and the position of the target excitation point corresponding to the first single air gun source ship; and to determine the predicted excitation time of the first single air gun source ship based on the distance between the first single air gun source ship and the target excitation point and the speed of the first single air gun source ship.

[0099] In some embodiments, the first control module 604 is configured to, when the predicted excitation time difference between the second single-airgun seismic source vessel and the first single-airgun seismic source vessel is less than a preset excitation time interval, determine a third single-airgun seismic source vessel from multiple single-airgun seismic source vessels based on the ranking result, wherein the third single-airgun seismic source vessel is the single-airgun seismic source vessel ranked after the first single-airgun seismic source vessel and adjacent to the first single-airgun seismic source vessel; determine the speed of the third single-airgun seismic source vessel as the first suggested speed of the first single-airgun seismic source vessel; and control the first single-airgun seismic source vessel to decelerate based on the first suggested speed.

[0100] In some embodiments, Figure 7 This is a schematic diagram of the control device for another single-air-gun seismic source vessel provided in an embodiment of this application. See also... Figure 7 The device also includes:

[0101] The second control module 605 is used to control the speed of the first single-air gun source ship to remain constant when the predicted excitation time difference between the second single-air gun source ship and the first single-air gun source ship is not less than the preset excitation time interval; or, to control the speed of the first single-air gun source ship to increase so as to enable the first single-air gun source ship to excite at the target excitation point in advance by reducing the time it takes for the first single-air gun source ship to reach the corresponding target excitation point.

[0102] In some embodiments, the second control module 605 is used to determine the speed of the second single-air gun seismic source vessel as the second suggested speed of the first single-air gun seismic source vessel; and based on the second suggested speed, control the speed increase of the first single-air gun seismic source vessel.

[0103] In some embodiments, see continue to see Figure 7 The device also includes:

[0104] The third control module 606 is used to control the first single-air gun source ship to pause excitation when it reaches the corresponding target excitation point, provided that the predicted excitation time difference between the second single-air gun source ship and the first single-air gun source ship is much smaller than the preset excitation time interval.

[0105] In some embodiments, the first determining module 601 is further configured to, upon receiving the actual excitation time of the second single air gun source ship, update the predicted excitation time of the first single air gun source ship based on the position of the target excitation point corresponding to the first single air gun source ship and the updated speed and position of the first single air gun source ship.

[0106] The first control module 604 is further configured to: control the speed of the first single-air gun source vessel to remain constant or increase when the difference between the actual excitation time and the predicted excitation time is not less than the preset excitation time interval; control the speed of the first single-air gun source vessel to decrease when the difference between the actual excitation time and the predicted excitation time is less than the preset excitation time interval; and control the first single-air gun source vessel to pause excitation when it reaches the corresponding target excitation point when the difference between the actual excitation time and the predicted excitation time is much less than the preset excitation time interval.

[0107] In some embodiments, see continue to see Figure 7 The device also includes:

[0108] The third determining module 607 is used to determine the excitation order of the first single-airgun seismic source ship based on the sorting result; if the first single-airgun seismic source ship is the first to be excited, the speed of the first single-airgun seismic source ship is kept constant; if the first single-airgun seismic source ship is not the first to be excited, the step of determining the second single-airgun seismic source ship from multiple single-airgun seismic source ships based on the sorting result is executed.

[0109] This application provides a control device for a single-airgun seismic source vessel. For any single-airgun seismic source vessel among multiple vessels participating in a target sea area excitation operation, the vessel can determine its predicted excitation time based on its own speed, position, and the position of the target excitation point. Upon receiving predicted excitation times from other vessels, the device can determine the predicted excitation time difference between the single-airgun seismic source vessel and its adjacent vessels based on these predicted times. If the predicted excitation time difference does not meet the preset excitation time interval, the device reduces the vessel's speed to extend its time to reach the target excitation point. This ensures that the excitation of the single-airgun seismic source vessel meets the excitation time interval requirements while maintaining the alignment of its excitation point with the pre-designed target excitation point, thereby improving the accuracy of the excitation location and increasing the efficiency of the excitation operation.

[0110] It should be noted that the control device for the single-airgun seismic source vessel provided in the above embodiments is only an example illustrating the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the computer equipment can be divided into different functional modules to complete all or part of the functions described above. Furthermore, the control device for the single-airgun seismic source vessel provided in the above embodiments and the control method embodiments for the single-airgun seismic source vessel belong to the same concept, and their specific implementation process is detailed in the method embodiments, which will not be repeated here.

[0111] This application also provides a computer device, which includes a processor and a memory. The memory stores at least one computer program, which is loaded and executed by the processor to implement the control method of the single air gun seismic source ship described above.

[0112] Taking computer devices as terminals as an example, Figure 8 This is a schematic diagram of the structure of a terminal provided in an embodiment of this application.

[0113] Terminal 800 includes a processor 801 and a memory 802.

[0114] Processor 801 may include one or more processing cores, such as a quad-core processor, an octa-core processor, etc. Processor 801 may be implemented using at least one hardware form selected from DSP (Digital Signal Processing), FPGA (Field Programmable Gate Array), and PLA (Programmable Logic Array). Processor 801 may also include a main processor and a coprocessor. The main processor, also known as a CPU (Central Processing Unit), is used to process data in the wake-up state; the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, processor 801 may integrate a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the screen. In some embodiments, processor 801 may also include an AI (Artificial Intelligence) processor, which is used to handle computational operations related to machine learning.

[0115] The memory 802 may include one or more computer-readable storage media, which may be non-transitory. The memory 802 may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In some embodiments, the non-transitory computer-readable storage media in the memory 802 are used to store at least one computer program, which is used by the processor 801 to implement the control method for a single-airgun seismic source ship provided in the method embodiments of this application.

[0116] In some embodiments, the terminal 800 may also optionally include: a peripheral device interface 803 and at least one peripheral device. The processor 801, memory 802, and peripheral device interface 803 can be connected via a bus or signal line. Each peripheral device can be connected to the peripheral device interface 803 via a bus, signal line, or circuit board. Optionally, the peripheral device includes at least one of: a radio frequency circuit 804, a display screen 805, a camera assembly 806, an audio circuit 807, and a power supply 808.

[0117] Peripheral device interface 803 can be used to connect at least one I / O (Input / Output) related peripheral device to processor 801 and memory 802. In some embodiments, processor 801, memory 802 and peripheral device interface 803 are integrated on the same chip or circuit board; in some other embodiments, any one or two of processor 801, memory 802 and peripheral device interface 803 can be implemented on separate chips or circuit boards, which is not limited in this embodiment.

[0118] The radio frequency (RF) circuit 804 is used to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The RF circuit 804 communicates with communication networks and other communication devices via electromagnetic signals. The RF circuit 804 converts electrical signals into electromagnetic signals for transmission, or converts received electromagnetic signals back into electrical signals. Optionally, the RF circuit 804 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a user identity module card, etc. The RF circuit 804 can communicate with other devices through at least one wireless communication protocol. This wireless communication protocol includes, but is not limited to: metropolitan area networks (MANs), various generations of mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks (WLANs), and / or WiFi (Wireless Fidelity) networks. In some embodiments, the RF circuit 804 may also include circuitry related to NFC (Near Field Communication), which is not limited in this application.

[0119] Display screen 805 is used to display a UI (User Interface). This UI may include graphics, text, icons, videos, and any combination thereof. When display screen 805 is a touch display screen, it also has the ability to collect touch signals on or above its surface. These touch signals can be input as control signals to processor 801 for processing. In this case, display screen 805 can also be used to provide virtual buttons and / or a virtual keyboard, also known as soft buttons and / or a soft keyboard. In some embodiments, there may be one display screen 805, disposed on the front panel of terminal 800; in other embodiments, there may be at least two display screens, disposed on different surfaces of terminal 800 or in a folded design; in other embodiments, display screen 805 may be a flexible display screen, disposed on a curved or folded surface of terminal 800. Furthermore, display screen 805 may be configured as a non-rectangular irregular shape, i.e., a non-rectangular screen. Display screen 805 may be made of materials such as LCD (Liquid Crystal Display) or OLED (Organic Light-Emitting Diode).

[0120] The camera assembly 806 is used to acquire images or videos. Optionally, the camera assembly 806 includes a front-facing camera and a rear-facing camera. The front-facing camera is disposed on the front panel of the terminal 800, and the rear-facing camera is disposed on the back of the terminal 800. In some embodiments, there are at least two rear-facing cameras, which are any one of a main camera, a depth-sensing camera, a wide-angle camera, and a telephoto camera, to achieve background blurring by fusion of the main camera and the depth-sensing camera, panoramic shooting by fusion of the main camera and the wide-angle camera, VR (Virtual Reality) shooting, or other fusion shooting functions. In some embodiments, the camera assembly 806 may also include a flash. The flash may be a single-color temperature flash or a dual-color temperature flash. A dual-color temperature flash refers to a combination of a warm light flash and a cool light flash, which can be used for light compensation at different color temperatures.

[0121] The audio circuit 807 may include a microphone and a speaker. The microphone is used to collect sound waves from the user and the environment, converting the sound waves into electrical signals that are input to the processor 801 for processing, or input to the radio frequency circuit 804 to achieve voice communication. For stereo sound acquisition or noise reduction purposes, multiple microphones may be used, each located at a different part of the terminal 800. The microphone may also be an array microphone or an omnidirectional microphone. The speaker is used to convert the electrical signals from the processor 801 or the radio frequency circuit 804 into sound waves. The speaker may be a conventional diaphragm speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, it can convert electrical signals not only into audible sound waves but also into inaudible sound waves for purposes such as distance measurement. In some embodiments, the audio circuit 807 may also include a headphone jack.

[0122] Power supply 808 is used to supply power to the various components in terminal 800. Power supply 808 can be AC ​​power, DC power, a disposable battery, or a rechargeable battery. When power supply 808 includes a rechargeable battery, the rechargeable battery can support wired charging or wireless charging. The rechargeable battery can also be used to support fast charging technology.

[0123] In some embodiments, the terminal 800 further includes one or more sensors 809. The one or more sensors 809 include, but are not limited to, an accelerometer 810, a gyroscope 811, a pressure sensor 812, an optical sensor 813, and a proximity sensor 814.

[0124] Accelerometer 810 can detect the magnitude of acceleration on the three coordinate axes of a coordinate system established by terminal 800. For example, accelerometer 810 can be used to detect the components of gravitational acceleration on the three coordinate axes. Processor 801 can control display screen 805 to display the user interface in either a landscape or portrait view based on the gravitational acceleration signal acquired by accelerometer 810. Accelerometer 810 can also be used for games or for acquiring user motion data.

[0125] The gyroscope sensor 811 can detect the orientation and rotation angle of the terminal 800. The gyroscope sensor 811, in conjunction with the accelerometer sensor 810, can collect 3D motion data from the user on the terminal 800. Based on the data collected by the gyroscope sensor 811, the processor 801 can perform the following functions: motion sensing (e.g., changing the UI based on the user's tilt), image stabilization during shooting, game control, and inertial navigation.

[0126] The pressure sensor 812 can be disposed on the side bezel of the terminal 800 and / or the lower layer of the display screen 805. When the pressure sensor 812 is disposed on the side bezel of the terminal 800, it can detect the user's grip signal on the terminal 800, and the processor 801 can perform left / right hand recognition or quick operation based on the grip signal collected by the pressure sensor 812. When the pressure sensor 812 is disposed on the lower layer of the display screen 805, the processor 801 can control the operable controls on the UI interface based on the user's pressure operation on the display screen 805. The operable controls include at least one of button controls, scroll bar controls, icon controls, and menu controls.

[0127] An optical sensor 813 is used to collect ambient light intensity. In one embodiment, the processor 801 can control the display brightness of the display screen 805 based on the ambient light intensity collected by the optical sensor 813. Optionally, when the ambient light intensity is high, the display brightness of the display screen 805 is increased; when the ambient light intensity is low, the display brightness of the display screen 805 is decreased. In another embodiment, the processor 801 can also dynamically adjust the shooting parameters of the camera assembly 806 based on the ambient light intensity collected by the optical sensor 813.

[0128] The proximity sensor 814, also known as a distance sensor, is installed on the front panel of the terminal 800. The proximity sensor 814 is used to detect the distance between the user and the front of the terminal 800. In one embodiment, when the proximity sensor 814 detects that the distance between the user and the front of the terminal 800 is gradually decreasing, the processor 801 controls the display screen 805 to switch from a screen-on state to a screen-off state; when the proximity sensor 814 detects that the distance between the user and the front of the terminal 800 is gradually increasing, the processor 801 controls the display screen 805 to switch from a screen-off state to a screen-on state.

[0129] Those skilled in the art will understand that Figure 8 The structure shown does not constitute a limitation on terminal 800 and may include more or fewer components than shown, or combine certain components, or use different component arrangements.

[0130] Taking computer equipment as a server as an example, Figure 9This is a schematic diagram of a server structure provided in an embodiment of this application. The server 900 can vary significantly due to different configurations or performance. It may include one or more Central Processing Units (CPUs) 901 and one or more memories 902. The memory 902 stores at least one computer program, which is loaded and executed by the processor 901 to implement the control method for the single-airgun seismic source ship provided in the various method embodiments described above. Of course, the server 900 may also have wired or wireless network interfaces, a keyboard, and input / output interfaces for input and output. The server 900 may also include other components for implementing device functions, which will not be elaborated here.

[0131] This application also provides a computer-readable storage medium storing at least one computer program, which is loaded and executed by a processor to implement the control method of the single air gun seismic source ship described above.

[0132] This application also provides a computer program product, including a computer program loaded and executed by a processor to implement the control method for a single-air-gun seismic source ship as described in the above embodiments.

[0133] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0134] The above are merely optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present application should be included within the protection scope of the present application.

Claims

1. A control method for a single-air-gun seismic source vessel, characterized in that, The method includes: Based on the speed and position of the first single air gun seismic source vessel and the position of the target excitation point corresponding to the first single air gun seismic source vessel, the predicted excitation time of the first single air gun seismic source vessel is determined. The first single air gun seismic source vessel is any one of the multiple single air gun seismic source vessels participating in the excitation operation in the target sea area. The predicted excitation time is used to indicate the time it takes for the first single air gun seismic source vessel to reach the target excitation point. Upon receiving the predicted excitation times of other single-air-gun seismic source vessels, the vessels are sorted according to the order of the predicted excitation times. Based on the sorting results, a second single air gun seismic source vessel is determined from the plurality of single air gun seismic source vessels. The second single air gun seismic source vessel is the single air gun seismic source vessel whose sorting position is before the first single air gun seismic source vessel and adjacent to the first single air gun seismic source vessel. If the predicted excitation time difference between the second single-air gun source vessel and the first single-air gun source vessel is less than the preset excitation time interval, the first single-air gun source vessel is controlled to decelerate, so as to increase the time for the first single-air gun source vessel to reach the corresponding target excitation point and make the predicted excitation time difference not less than the preset excitation time interval.

2. The method according to claim 1, characterized in that, The determination of the predicted excitation time of the first single-airgun seismic source vessel based on its speed, position, and the position of the target excitation point corresponding to the first single-airgun seismic source vessel includes: Based on the position of the first single air gun source ship and the position of the target excitation point corresponding to the first single air gun source ship, the distance between the first single air gun source ship and the target excitation point is determined. Based on the distance between the first single-airgun seismic source vessel and the target excitation point and the speed of the first single-airgun seismic source vessel, the predicted excitation time of the first single-airgun seismic source vessel is determined.

3. The method according to claim 1, characterized in that, When the predicted excitation time difference between the second single-air gun seismic source vessel and the first single-air gun seismic source vessel is less than a preset excitation time interval, controlling the first single-air gun seismic source vessel to decelerate includes: If the predicted excitation time difference between the second single-air gun seismic source ship and the first single-air gun seismic source ship is less than the preset excitation time interval, based on the sorting result, a third single-air gun seismic source ship is determined from the plurality of single-air gun seismic source ships. The third single-air gun seismic source ship is the single-air gun seismic source ship whose sorting position is after the first single-air gun seismic source ship and adjacent to the first single-air gun seismic source ship. The speed of the third single-air gun source vessel is determined to be the first suggested speed of the first single-air gun source. Based on the first suggested ship speed, the first single-air gun seismic source ship is controlled to decelerate.

4. The method according to claim 1, characterized in that, The method includes: If the predicted excitation time difference between the second single-airgun seismic source vessel and the first single-airgun seismic source vessel is not less than the preset excitation time interval, the speed of the first single-airgun seismic source vessel is kept constant; or... The speed of the first single-air gun seismic source vessel is controlled so as to reduce the time it takes for the first single-air gun seismic source vessel to reach the corresponding target excitation point, thereby enabling the first single-air gun seismic source vessel to excite at the target excitation point in advance.

5. The method according to claim 4, characterized in that, The control of the speed increase of the first single-air gun seismic source vessel includes: The speed of the second single-air gun seismic source vessel is determined to be the second suggested speed of the first single-air gun seismic source vessel. Based on the second suggested ship speed, the speed of the first single-air gun seismic source ship is controlled.

6. The method according to claim 1, characterized in that, The method further includes: When the predicted excitation time difference between the second single-air gun seismic source vessel and the first single-air gun seismic source vessel is much smaller than the preset excitation time interval, the first single-air gun seismic source vessel is controlled to pause excitation when it reaches the corresponding target excitation point.

7. The method according to claim 1, characterized in that, The method further includes: Upon receiving the actual excitation time of the second single-air gun seismic source vessel, the predicted excitation time of the first single-air gun seismic source vessel is updated based on the position of the target excitation point corresponding to the first single-air gun seismic source vessel and the updated speed and position of the first single-air gun seismic source vessel. If the difference between the actual excitation time and the predicted excitation time is not less than the preset excitation time interval, the speed of the first single-air gun source ship is controlled to remain constant or increase. If the difference between the actual excitation time and the predicted excitation time is less than the preset excitation time interval, the speed of the first single-air gun source ship is controlled to decrease. If the difference between the actual excitation time and the predicted excitation time is much smaller than the preset excitation time interval, the first single-air gun source ship is controlled to pause excitation when it reaches the corresponding target excitation point.

8. The method according to claim 1, characterized in that, The method further includes: Based on the sorting results, the excitation sequence of the first single-air gun source ship is determined; When the first single-air gun seismic source ship is the first single-air gun seismic source ship to be activated, the speed of the first single-air gun seismic source ship is kept constant. If the first single-airgun seismic source vessel is not the first single-airgun seismic source vessel to be excited, the step of determining the second single-airgun seismic source vessel from the plurality of single-airgun seismic source vessels based on the sorting result is performed.

9. A control device for a single-air-gun seismic source vessel, characterized in that, The device includes: The first determining module is used to determine the predicted excitation time of the first single air gun source vessel based on the vessel speed and position of the first single air gun source vessel and the position of the target excitation point corresponding to the first single air gun source vessel. The first single air gun source vessel is any one of the multiple single air gun source vessels participating in the excitation operation in the target sea area. The predicted excitation time is used to indicate the time it takes for the first single air gun source vessel to reach the target excitation point. The sorting module is used to sort the multiple single-airgun seismic source vessels according to the order of the predicted excitation times received from other single-airgun seismic source vessels. The second determining module is used to determine the second single air gun seismic source vessel from the plurality of single air gun seismic source vessels based on the sorting result. The second single air gun seismic source vessel is the single air gun seismic source vessel whose sorting position is before the first single air gun seismic source vessel and adjacent to the first single air gun seismic source vessel. The first control module is used to control the first single-air gun source ship to decelerate when the predicted excitation time difference between the second single-air gun source ship and the first single-air gun source ship is less than the preset excitation time interval, so as to increase the time for the first single-air gun source ship to reach the corresponding target excitation point so that the predicted excitation time difference is not less than the preset excitation time interval.

10. A computer device, characterized in that, The computer device includes a processor and a memory, the memory storing at least one computer program, which is loaded and executed by the processor to implement the control method for a single-air-gun seismic source vessel as described in any one of claims 1 to 8.

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