Excitation control device and excitation control method of vibroseis controller

Abstract

The invention provides excitation control equipment and an excitation control method of a vibroseis controller, belongs to the technical field of petroleum geological exploration, aims to realize excitation of the vibroseis controller, and comprises an input and output device used for receiving a starting instruction of the vibroseis controller and sending an excitation instruction to a main control chip, the excitation instruction represents excitation time and models of vibroseis controllers, and vibroseis controllers of different models correspond to different excitation signals; the satellite time service device responds to the positioning information of the vibroseis controller, sends time service to the main control chip, and sends a second pulse signal to the optocoupler isolation device; the main control chip is used for sending an initial excitation signal to the optocoupler isolation device after receiving the time service and excitation instruction; and the optocoupler isolation device is used for responding to the pulse per second signal and the initial excitation signal, and sending a target excitation signal corresponding to the model of the optocoupler isolation device to the vibroseis controller when the excitation time arrives, so that the vibroseis controller is started at the excitation time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil geological exploration, and particularly relates to a shooting control device and a shooting control method of a controlled source controller. BACKGROUND

[0002] When the controlled source controller is started, the controlled source controller can start the controlled source. At present, the commonly used way to start the controlled source controller is to directly start the controlled source controller, and the controlled source controller identifies and analyzes the starting instruction sent by the telemetry seismograph.

[0003] However, the above-mentioned way usually has the following technical problems:

[0004] Only the controlled source controller of the same manufacturer as the telemetry seismograph can identify and analyze the starting instruction sent by the telemetry seismograph, which leads to too high limitation on the model of the controlled source controller and cannot meet the growing demand of oil geological exploration. SUMMARY

[0005] Therefore, the present application aims to provide a shooting control device and a shooting control method of a controlled source controller to realize the expansion of the communication means of the controlled source controller and the cross-model mixed use between the controlled source controller and the telemetry seismograph.

[0006] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0007] A shooting control device of a controlled source controller, the shooting control device comprising: an input and output device, a satellite time service device, a main control chip connected with the input and output device and the satellite time service device respectively, and an optical coupling isolation device connected with the satellite time service device and the main control chip respectively, wherein the optical coupling isolation device is also connected with the controlled source controller;

[0008] The input and output device is configured to send a shooting instruction to the main control chip after receiving a starting instruction for the controlled source controller, wherein the shooting instruction is used to indicate a shooting time and a model of the controlled source controller, different models of the controlled source controller correspond to different shooting signals, and the shooting signal is used to start the controlled source controller;

[0009] The satellite time service device is configured to send a time service to the main control chip and send a second pulse signal to the optical coupling isolation device in response to positioning information of the controlled source controller;

[0010] The main control chip is configured to send an initial shooting signal to the optical coupling isolation device after receiving the time service and the shooting instruction, wherein the initial shooting signal comprises the shooting time and the model.

[0011] The optical coupling isolation device is configured to, in response to the second pulse signal and the initial firing signal, send a target firing signal corresponding to a model of the vibroseis controller to the vibroseis controller at the firing time, so that the vibroseis controller starts according to the firing time.

[0012] Further, the optical coupling isolation device comprises a two-way switch device connected with the satellite time device and the main control chip respectively, and a plurality of photoelectric couplers connected with the two-way switch device, wherein the plurality of photoelectric couplers are connected with the vibroseis controller;

[0013] The photoelectric couplers are configured to send the firing signal to the vibroseis controller, and different photoelectric couplers send different firing signals.

[0014] The two-way switch device is configured to, after receiving the second pulse signal, determine a target photoelectric coupler from the plurality of photoelectric couplers in response to the initial firing signal, and forward the second pulse signal and the initial firing signal to the target photoelectric coupler.

[0015] The target photoelectric coupler is further configured to, in response to the second pulse signal and the initial firing signal, send the target firing signal to the vibroseis controller at the firing time.

[0016] Further, in a case where the model of the vibroseis controller indicated by the firing instruction is a first preset model, the plurality of photoelectric couplers comprise a first photoelectric coupler.

[0017] The two-way switch device is further configured to, after receiving the second pulse signal, send the second pulse signal and the initial firing signal to the first photoelectric coupler in response to the initial firing signal.

[0018] The first photoelectric coupler is further configured to, in response to the second pulse signal and the initial firing signal, send a first target firing signal to the vibroseis controller at the firing time.

[0019] Further, in a case where the model of the vibroseis controller indicated by the firing instruction is a second preset model, the plurality of photoelectric couplers comprise a second photoelectric coupler.

[0020] The two-way switch device is further configured to, after receiving the second pulse signal, send the second pulse signal and the initial firing signal to the second photoelectric coupler in response to the initial firing signal.

[0021] The second optocoupler is also configured to, in response to the second pulse signal and the initial excitation signal, send a second target excitation signal to the controllable vibration source controller when the excitation time arrives;

[0022] The first target excitation signal and the second target excitation signal are different.

[0023] Furthermore, the optocoupler isolation device further includes: a reference voltage input device connected to the plurality of optocouplers;

[0024] The reference voltage input device is used to send a reference voltage to the plurality of optocouplers respectively;

[0025] Different optocouplers receive reference voltages with different voltage directions.

[0026] Furthermore, the satellite timing device is also connected to the controllable seismic source controller and is also used to receive the excitation verification signal sent by the controllable seismic source controller. The excitation verification signal is used to indicate the excitation status and actual excitation time of the controllable seismic source controller. The excitation status includes normal excitation status and abnormal excitation status.

[0027] The satellite timing device is also used to send the excitation status and the actual excitation time to the main control chip in response to the excitation verification signal;

[0028] The main control chip is also used to receive the excitation state and the actual excitation time, compare the actual excitation time with the excitation time, and verify whether the controllable source controller is started at the excitation time and whether the controllable source controller is in the normal excitation state.

[0029] Furthermore, the main control chip includes: a main control processor, and a general-purpose input / output interface connecting the main control processor to the input / output device, the satellite timing device, and the optocoupler isolation device;

[0030] The main control processor is used to receive the excitation command sent by the input / output device and the time synchronization sent by the satellite time synchronization device, and to send the initial excitation signal to the optocoupler isolation device.

[0031] Furthermore, the excitation control device also includes a positioning module, which is wirelessly connected to the satellite timing device and the controllable vibration source controller, respectively;

[0032] The positioning module is used to acquire the positioning information of the controllable seismic source controller and forward the positioning information to the satellite timing device.

[0033] Furthermore, the excitation control device also includes a power supply device, which is connected to the input / output device, the satellite timing device, the main control chip, and the optocoupler isolation device, respectively, for supplying power to the input / output device, the satellite timing device, the main control chip, and the optocoupler isolation device.

[0034] Another objective of this application is to propose an excitation control method for a controllable source controller, so as to realize the expansion of the communication means of the controllable source controller and its cross-model mixed use with telemetry seismographs.

[0035] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0036] An excitation control method for a controllable seismic source controller, applied to the aforementioned excitation control device for a controllable seismic source controller, the excitation control method comprising:

[0037] In response to the start command for the controllable vibration source controller, the excitation time and model of the controllable vibration source controller are obtained;

[0038] Based on the aforementioned model, the target excitation signal for exciting the controllable vibration source controller is determined;

[0039] When the excitation time arrives, the target excitation signal is sent to the controllable source controller so that the controllable source controller starts according to the excitation time.

[0040] Compared with existing technologies, the excitation control device of the controllable vibration source controller described in this application has the following advantages:

[0041] This application provides an excitation control device for a controllable seismic source controller. The excitation control device includes: an input / output device, a satellite timing device, a main control chip connected to the input / output device and the satellite timing device, and an optical coupling isolation device connected to the satellite timing device and the main control chip, wherein the optical coupling isolation device is also connected to the controllable seismic source controller. The input / output device, upon receiving a start command for the controllable seismic source controller, sends an excitation command to the main control chip. The excitation command indicates the excitation time and model of the controllable seismic source controller, wherein different models of controllable seismic source controllers correspond to different excitation signals, and the excitation signal is used to start... The controllable seismic source controller is activated; the satellite timing device is used to send timing information to the main control chip and a second pulse signal to the optocoupler isolation device in response to the positioning information of the controllable seismic source controller; the main control chip is used to send an initial excitation signal to the optocoupler isolation device after receiving the timing information and the excitation command, the initial excitation signal including the excitation time and the model; the optocoupler isolation device is used to send a target excitation signal corresponding to the model of the controllable seismic source controller to the controllable seismic source controller when the excitation time arrives, in response to the second pulse signal and the initial excitation signal, so that the controllable seismic source controller starts according to the excitation time.

[0042] Therefore, this application includes an input / output device, a satellite timing device, a main control chip, and an optocoupler isolation device. Upon receiving a start command for the controllable source controller via the input / output device (i.e., receiving the start command from the telemetry seismograph), the input / output device then sends an excitation command to the main control chip. This allows the main control chip to parse the excitation command and obtain the excitation time and model of the controllable source controller. Simultaneously, by sending the controllable source controller's location information to the satellite timing device, the satellite timing device can send time synchronization signals to the main control chip, and a high-precision second pulse signal is sent to the optocoupler isolation device, providing timing information to the main control chip and the optocoupler isolation device. The main control chip, upon receiving timing and excitation commands, can send an initial excitation signal to the optocoupler isolation device. The optocoupler isolation device, responding to the initial excitation signal and the second pulse signal, generates a target excitation signal capable of exciting the controllable source controller of that model. When the excitation time arrives, it sends the target excitation signal to the controllable source controller, enabling it to start according to the excitation time. Therefore, the excitation control device of this application can not only identify start commands issued by telemetry seismographs from different manufacturers, reducing the limitation on the model of the controllable source controller and enabling the expansion of communication methods for the controllable source controller and its cross-model mixed use with telemetry seismographs, but also achieve precise control of the controllable source controller. Attached Figure Description

[0043] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0044] Figure 1 This is a schematic diagram of the excitation control device of a controllable vibration source controller according to an embodiment of this application;

[0045] Figure 2 This is a schematic diagram of the structure of a satellite timing device according to an embodiment of this application;

[0046] Figure 3 This is a schematic diagram of the structure of a main control chip according to an embodiment of this application;

[0047] Figure 4 This is a schematic diagram of the structure of an optical coupler isolation device according to an embodiment of this application;

[0048] Figure 5 This is a flowchart illustrating the steps of an excitation control method for a controllable vibration source controller as described in an embodiment of this application.

[0049] Reference numerals: 101, Input / output device; 102, Satellite timing device; 103, Main control chip; 104, Optocoupler isolation device; 105, Power supply device; 201, Satellite antenna interface; 202, Data output interface; 203, Second pulse output interface; 204, Event trigger interface; 301, Main control processor; 302, Random access memory; 303, General purpose input / output interface; 401, Dual-channel switch device; 402, First optocoupler; 403, Second optocoupler; 404, Reference voltage input device. Detailed Implementation

[0050] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0051] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0052] In related technologies, the excitation of controlled source controllers typically employs telemetry seismographs. The encoder in the telemetry seismograph sends a start command for the controlled source controller's excitation, which is then parsed by the decoder in the controlled source controller, thus successfully initiating the excitation. However, to ensure accurate parsing of the start command from the encoder in the telemetry seismograph, a communication mechanism using analog or specific digital radio is required. Therefore, controlled source controllers usually need to be matched with specific telemetry seismographs; in other words, the controlled source controller and the telemetry seismograph must be used in pairs, and both must be from the same manufacturer to achieve effective excitation control. This significantly limits the types of controlled source controllers available, restricts communication methods, and hinders cross-model compatibility with telemetry seismographs, failing to meet the demands of the ever-growing scale of oil geological exploration.

[0053] In view of this, embodiments of this application propose an excitation control device for a controllable vibration source controller, referring to... Figure 1 , Figure 1 This paper shows a schematic diagram of the excitation control device of a controllable vibration source controller according to an embodiment of this application. Figure 1 As shown, the excitation control device includes: an input / output device 101, a satellite timing device 102, a main control chip 103 connected to the input / output device 101 and the satellite timing device 102 respectively, and an optical coupler isolation device 104 connected to the satellite timing device 102 and the main control chip 103 respectively, wherein the optical coupler isolation device 104 is also connected to the controllable vibration source controller;

[0054] The input / output device 101 is used to send an excitation command to the main control chip 103 after receiving a start command for the controllable vibration source controller. The excitation command is used to indicate the excitation time and model of the controllable vibration source controller. Different models of controllable vibration source controllers correspond to different excitation signals. The excitation signal is used to start the controllable vibration source controller.

[0055] The satellite timing device 102 is used to send timing information to the main control chip 103 and send a second pulse signal to the optocoupler isolation device 104 in response to the positioning information of the controllable seismic source controller.

[0056] The main control chip 103 is used to send an initial excitation signal to the optocoupler isolation device 104 after receiving the time synchronization and the excitation command. The initial excitation signal includes the excitation time and the model.

[0057] The optocoupler isolation device 104 is used to respond to the second pulse signal and the initial excitation signal, and when the excitation time arrives, send a target excitation signal corresponding to the model of the controllable vibration source controller to the controllable vibration source controller so that the controllable vibration source controller starts according to the excitation time.

[0058] The activation command can be issued by the telemetry seismograph to activate the controllable source controller. This command indicates the excitation time and model of the controllable source controller. The excitation time can be a user-preset time for activating the controllable source controller, or it can be the time when the telemetry seismograph issues the activation command. The telemetry seismograph can be any model, and the controllable source controller can also be any model, including but not limited to the VE series controllable source controller and the VIBPRO HD series controllable source controller.

[0059] The telemetry seismograph sends a start command to the input / output device 101. In response to the start command, the input / output device 101 sends an excitation command to the main control chip 103. This excitation command is equivalent to the start command issued by the telemetry seismograph and is also used to indicate the excitation time and model of the controllable source controller. In this way, the main control chip 103 can parse the excitation command and obtain the excitation time and model of the controllable source controller.

[0060] Next, the main control chip 103 can send an initial excitation signal to the optocoupler isolation device 104. Upon receiving the initial excitation signal, the optocoupler isolation device 104 can determine the excitation time and model of the controllable vibration source controller, and based on the model of the controllable vibration source controller, determine the excitation signal that can activate that model of controllable vibration source controller, i.e., the target excitation signal, and output the target excitation signal to the controllable vibration source controller, thereby enabling the controllable vibration source controller to start according to the excitation time. The target excitation signal output by the optocoupler isolation device 104 is an isolated excitation signal, thus ensuring safe activation of the controllable vibration source controller.

[0061] Therefore, the input / output device 101 receives the start command from the telemetry seismograph, and the main control chip 103 parses the start command to obtain the excitation time and model of the controllable source controller. Then, the main control chip 103 sends an initial excitation signal to the optocoupler isolation device 104, enabling the optocoupler isolation device 104 to generate an enable signal to excite the controllable source controller. Thus, the main control chip 103 can identify the start commands issued by telemetry seismographs from different manufacturers without considering the model of the telemetry seismograph and the controllable source controller, reducing the restriction on the model of the controllable source controller.

[0062] However, in practice, if the controllable vibration source controller is excited using only the input / output device 101, the main control chip 103, and the optocoupler isolation device 104, it may not be possible to guarantee that the main control chip 103 and the optocoupler isolation device 104 will work at the correct time, causing the controllable vibration source controller to fail to start according to the excitation time.

[0063] Therefore, in this embodiment, before the main control chip 103 and the optocoupler isolation device 104 operate, the satellite timing device 102 sends timing information to the main control chip 103 and a second pulse signal to the optocoupler isolation device 104. Specifically, in response to the positioning information from the controllable vibration source controller, the satellite timing device 102 sends timing information to the main control chip 103 and a second pulse signal to the optocoupler isolation device 104. The timing information can be the accurate time generated by the satellite timing device 102 through relativistic effects after receiving the positioning information; the second pulse signal can be a pulse signal generated by the satellite timing device 102 based on the timing information, achieving a preset time accuracy. For example, the preset time accuracy can be once every whole second, with an error within 20 nanoseconds.

[0064] In this way, after receiving the timing and excitation commands, the main control chip 103 standardizes the time according to the timing and then sends an initial excitation signal to the optocoupler isolation device 104. Upon receiving the initial excitation signal and the second pulse signal, the optocoupler isolation device 104 generates a target excitation signal corresponding to the model of the controllable vibration source controller. When the excitation time arrives, it can send the target excitation signal to the controllable vibration source controller to ensure that the controllable vibration source controller starts at the excitation time.

[0065] In one example, the structure of the satellite timing device 102 can be referred to Figure 2 , Figure 2 A schematic diagram of the structure of a satellite timing device according to an embodiment of this application is shown, as follows: Figure 2 As shown, the satellite timing device 102 may include a satellite antenna interface 201, a data output interface 202, and a second pulse output interface 203. The satellite antenna interface 201 is used to receive positioning information from the controllable seismic source controller; the data output interface 202 is connected to the main control chip 103 and is used to send timing information to the main control chip 103; the second pulse output interface 203 is connected to the optocoupler isolation device 104 and is used to send a second pulse signal to the optocoupler isolation device 104.

[0066] In one example, the structure of the main control chip 103 can be referred to Figure 3 , Figure 3 A schematic diagram of the structure of a main control chip according to an embodiment of this application is shown, as follows: Figure 3As shown, the main control chip 103 includes: a main control processor 301, and a general-purpose input / output interface 303 that connects the main control processor 301 to the input / output device 101, the satellite timing device 102 and the optocoupler isolation device 104;

[0067] The main control processor 301 is used to receive the excitation command sent by the input / output device 101 and the time synchronization sent by the satellite timing device 102, and to send the initial excitation signal to the optocoupler isolation device 104.

[0068] The general-purpose input / output interface 303 is connected to the data output interface 202 of the satellite timing device 102.

[0069] In this embodiment of the application, the main control processor 301 in the main control chip 103 is used to process the excitation command sent from the input / output device 101 and the time synchronization sent from the satellite timing device 102, and generate an initial excitation signal, and send the initial excitation signal to the optocoupler isolation device 104; the general-purpose input / output interface 303 is used to transmit various commands and signals.

[0070] In one example, such as Figure 3 As shown, the main control chip 103 also includes a random access memory 302, which is used to store instructions and signals sent to the main control chip 103 by other devices, such as excitation instructions sent by the input / output device 101 and time synchronization sent by the satellite timing device 102; as well as instructions and signals output by the main control chip 103 to the outside world, such as the initial excitation signal issued by the main control processor 301; and the excitation time of the controllable vibration source controller.

[0071] Therefore, in this embodiment of the application, the main control chip 103 analyzes the start command issued by the telemetry seismograph, and then uses the timing function of the satellite timing device 102 to ensure that after the optical isolation device 104 receives the initial excitation signal sent by the main control chip 103 and the second pulse signal sent by the satellite timing device 102, it can not only generate an enable signal to excite the controllable source controller, but also send the enable signal to the controllable source controller when the excitation time arrives, thus ensuring the accurate excitation control of the controllable source controller.

[0072] In one alternative implementation, refer to Figure 4 , Figure 4 A schematic diagram of the structure of an optical coupling isolation device according to an embodiment of this application is shown, as follows: Figure 4As shown, the optocoupler isolation device 104 includes: a dual-channel switch device 401 connected to the satellite timing device 102 and the main control chip 103 respectively, and a plurality of optocouplers connected to the dual-channel switch device 401, wherein the plurality of optocouplers are all connected to the controllable vibration source controller;

[0073] The optocoupler is used to send the excitation signal to the controllable vibration source controller, and different optocouplers send different excitation signals;

[0074] The dual-channel switching device 401 is used to, after receiving the second pulse signal, in response to the initial excitation signal, determine the target optocoupler from the plurality of optocouplers, and forward the second pulse signal and the initial excitation signal to the target optocoupler;

[0075] The target optocoupler is also used to send the target excitation signal to the controllable source controller when the excitation time arrives, in response to the second pulse signal and the initial excitation signal.

[0076] Since there are various types of controllable vibration source controllers, and different types of controllers require different excitation signals to activate, the optocoupler isolation device 104 in this embodiment includes multiple optocouplers. These optocouplers send excitation signals to the controllable vibration source controller, and different optocouplers send different excitation signals, thus satisfying the excitation requirements of different types of controllable vibration source controllers. The optocouplers may be HSSR-8060 optocouplers.

[0077] To facilitate the selection and use of optocouplers, this embodiment of the application also includes a dual-channel switch device 401 in the optocoupler isolation device 104. The dual-channel switch device 401 is connected to the satellite timing device 102, the main control chip 103, and each optocoupler. Specifically, the dual-channel switch device 401 is connected to the second pulse output interface 203 of the satellite timing device 102 and the general input / output interface 303 of the main control chip 103. After receiving the initial excitation signal sent by the main control chip 103, the dual-channel switch device 401 can determine the model of the controllable vibration source controller. Based on the model, it can determine the target optocoupler required for the current model of controllable vibration source controller to be excited, and forward the initial excitation signal and the second pulse signal sent by the satellite timing device 102 to the target optocoupler. In this way, the target optocoupler responds to the second pulse signal and the initial excitation signal, generates a target excitation signal, and sends the target excitation signal to the controllable vibration source controller when the excitation time arrives, ensuring that the controllable vibration source controller can be excited and started at the excitation time.

[0078] In one alternative implementation, such as Figure 4 As shown, when the model of the controllable vibration source controller indicated by the excitation command is a first preset model, the plurality of optocouplers include a first optocoupler 402.

[0079] The dual-channel switching device 401 is further configured to, after receiving the second pulse signal, send the second pulse signal and the initial excitation signal to the first optocoupler 402 in response to the initial excitation signal;

[0080] The first optocoupler 402 is also used to send a first target excitation signal to the controllable vibration source controller when the excitation time arrives, in response to the second pulse signal and the initial excitation signal.

[0081] The first preset model can be a VE series controllable vibration source controller. The excitation enable signal of the VE series controllable vibration source controller can be a down-jump pulse. When the model of the controllable vibration source controller is the first preset model, multiple optocouplers include a first optocoupler 402. The first optocoupler 402 is used to send a first target excitation signal, i.e., a down-jump pulse, to the controllable vibration source controller.

[0082] In other words, after the dual-channel switch device 401 receives the initial excitation signal sent by the main control chip 103 and determines that the model of the controllable vibration source controller is the first preset model, it determines that the target optocoupler required for the excitation of the current model of the controllable vibration source controller is the first optocoupler 402, and forwards the initial excitation signal and the second pulse signal sent by the satellite timing device 102 to the first optocoupler 402. As a result, the first optocoupler 402 responds to the second pulse signal and the initial excitation signal to generate the first target excitation signal, i.e., the down-jump pulse, and sends the down-jump pulse to the controllable vibration source controller when the excitation time arrives, so as to ensure that the controllable vibration source controller can be excited and started, and can be started at the excitation time.

[0083] In one alternative implementation, such as Figure 4 As shown, when the model of the controllable vibration source controller indicated by the excitation command is a second preset model, the plurality of optocouplers include a second optocoupler 403;

[0084] The dual-channel switching device 401 is further configured to, after receiving the second pulse signal, send the second pulse signal and the initial excitation signal to the second optocoupler 403 in response to the initial excitation signal;

[0085] The second optocoupler 403 is also used to send a second target excitation signal to the controllable vibration source controller when the excitation time arrives, in response to the second pulse signal and the initial excitation signal;

[0086] The first target excitation signal and the second target excitation signal are different.

[0087] The second preset model can be a VIBPRO HD series controllable source controller. The excitation enable signal of the VIBPRO HD series controllable source controller can be an up-jump pulse. When the controllable source controller is the second preset model, multiple optocouplers include a second optocoupler 403. The second optocoupler 403 is used to send a second target excitation signal, i.e., an up-jump pulse, to the controllable source controller.

[0088] In other words, after the dual-channel switch device 401 receives the initial excitation signal sent by the main control chip 103 and determines that the model of the controllable vibration source controller is the second preset model, it determines that the target optocoupler required for the excitation of the current model of the controllable vibration source controller is the second optocoupler 403, and forwards the initial excitation signal and the second pulse signal sent by the satellite timing device 102 to the second optocoupler 403. As a result, the second optocoupler 403 responds to the second pulse signal and the initial excitation signal to generate the second target excitation signal, namely the up-jump pulse, and sends the up-jump pulse to the controllable vibration source controller when the excitation time arrives, so as to ensure that the controllable vibration source controller can be excited and started, and can be started at the excitation time.

[0089] In one alternative implementation, such as Figure 4 As shown, the optocoupler isolation device 104 further includes a reference voltage input device 404 connected to the plurality of optocouplers;

[0090] The reference voltage input device 404 is used to send reference voltages to the plurality of optocouplers respectively;

[0091] Different optocouplers receive reference voltages with different voltage directions.

[0092] To ensure the normal operation of each optocoupler and enable each optocoupler to send a target excitation signal to the controllable vibration source controller when the excitation time arrives, this embodiment of the application provides a reference voltage input device 404 in the optocoupler isolation device 104, and uses the reference voltage input device 404 to send a reference voltage to each optocoupler.

[0093] In one example, when the controllable source controller is of the first preset model, the reference voltage input device 404 can send a negative voltage to the first optocoupler 402; when the controllable source controller is of the second preset model, the reference voltage input device 404 can send a positive voltage to the second optocoupler 403.

[0094] In another example, when the controllable source controller is of the first preset model, the reference voltage input device 404 can send a positive voltage to the first optocoupler 402; when the controllable source controller is of the second preset model, the reference voltage input device 404 can send a negative voltage to the second optocoupler 403.

[0095] In an optional embodiment, the satellite timing device 102 is also connected to the controllable seismic source controller and is also used to receive the excitation verification signal sent by the controllable seismic source controller. The excitation verification signal is used to indicate the excitation status and actual excitation time of the controllable seismic source controller. The excitation status includes a normal excitation status and an abnormal excitation status.

[0096] The satellite timing device 102 is also used to send the excitation status and the actual excitation time to the main control chip 103 in response to the excitation verification signal;

[0097] The main control chip 103 is also used to receive the excitation state and the actual excitation time, compare the actual excitation time with the excitation time, and verify whether the controllable source controller is started at the excitation time and whether the controllable source controller is in the normal excitation state.

[0098] After the optical isolation device 104 sends the target excitation signal to the controllable seismic source controller, the controllable seismic source controller may fail to start normally due to equipment failure or other reasons, or may not start at the excitation time. Therefore, in this embodiment, upon receiving the target excitation signal from the optical isolation device 104, the controllable seismic source controller will send an excitation verification signal to the satellite timing device 102, regardless of whether it has started excitation or whether it started at the excitation time. This excitation verification signal is used to indicate the current excitation status and actual excitation time of the controllable seismic source controller. The excitation status includes a normal excitation status and an abnormal excitation status, wherein a normal excitation status indicates that the controllable seismic source controller has started excitation; and an abnormal excitation status indicates that the controllable seismic source controller has not started excitation.

[0099] Among them, such as Figure 3 As shown, the satellite timing device 102 also includes an event trigger interface 204. The controllable source controller is connected to the optocoupler isolation device 104 through the event trigger interface 204. In this way, the controllable source controller can send an excitation verification signal to the optocoupler isolation device 104 through the event trigger interface 204. In response to the excitation verification signal, the satellite timing device 102 sends the excitation status and actual excitation time to the main control chip 103. Thus, the main control chip 103 can determine the current excitation status of the controllable source controller and compare the actual excitation time with the excitation time to determine whether the controllable source controller is started at the excitation time.

[0100] In one example, the main control chip 103 can also be connected to a user terminal, such as a computer or mobile phone used by the user. In this way, when the main control chip 103 determines whether the controllable vibration source controller is started at the excitation time and whether the controllable vibration source controller is in a normal excitation state, it can send the excitation status of the controllable vibration source controller and the actual excitation time to the user, and notify the user of the current excitation status and actual excitation time of the controllable vibration source controller.

[0101] In one optional embodiment, the excitation control device further includes a positioning module, which is wirelessly connected to the satellite timing device 102 and the controllable vibration source controller, respectively.

[0102] The positioning module is used to acquire the positioning information of the controllable seismic source controller and forward the positioning information to the satellite timing device 102.

[0103] The positioning module is wirelessly connected to the satellite timing device 102 via the satellite antenna interface 201.

[0104] The positioning module can be a satellite positioning system that broadcasts positioning information, such as the BeiDou Navigation Satellite System (BDS), the Global Positioning System (GPS), the Galileo Navigation Satellite System, and the GLONASS Navigation Satellite System.

[0105] In one alternative implementation, such as Figure 1 As shown, the excitation control device further includes a power supply device 105, which is connected to the input / output device 101, the satellite timing device 102, the main control chip 103 and the optocoupler isolation device 104 respectively, and is used to supply power to the input / output device 101, the satellite timing device 102, the main control chip 103 and the optocoupler isolation device 104.

[0106] In this embodiment of the application, in order to ensure the normal operation of the input / output device 101, the satellite timing device 102, the main control chip 103 and the optocoupler isolation device 104, a power supply device 105 is provided in the excitation control device.

[0107] Based on the same inventive concept, this application also proposes an excitation control method for a controllable vibration source controller, applied to the aforementioned excitation control device for a controllable vibration source controller, with reference to... Figure 5 The figure shows a flowchart of the excitation control method of a controllable vibration source controller according to an embodiment of this application, as follows: Figure 5 As shown, the excitation control method includes the following steps:

[0108] Step S101: In response to the start command for the controllable vibration source controller, obtain the excitation time and model of the controllable vibration source controller.

[0109] In this embodiment, the input / output device 101 in the excitation control device can receive a start command sent by the telemetry seismograph for the controllable source controller. This start command indicates the excitation time and model of the controllable source controller. The excitation time can be a user-preset time for starting the controllable source controller, or it can be the time when the telemetry seismograph issues the start command. The telemetry seismograph can be any model, and the controllable source controller can also be any model, including but not limited to the VE series controllable source controller and the VIBPRO HD series controllable source controller.

[0110] Next, an excitation command is sent to the main control chip 103. This excitation command is equivalent to the start command issued by the telemetry seismograph and is also used to indicate the excitation time and model of the controllable source controller. In this way, the main control chip 103 can parse the excitation command to obtain the excitation time and model of the controllable source controller.

[0111] Step S102: Based on the model, determine the target excitation signal for exciting the controllable vibration source controller.

[0112] After receiving the excitation command, the main control chip 103 can send an initial excitation signal to the optocoupler isolation device 104. After receiving the initial excitation signal, the optocoupler isolation device 104 can determine the excitation time and model of the controllable vibration source controller, and determine the excitation signal that can start the controllable vibration source controller of that model, i.e., the target excitation signal, according to the model of the controllable vibration source controller.

[0113] Step S103: When the excitation time arrives, send the target excitation signal to the controllable source controller so that the controllable source controller starts according to the excitation time.

[0114] After the optical coupler isolation device 104 determines the target excitation signal, generates the target excitation signal, and sends the target excitation signal to the controllable source controller when the excitation time arrives, so that the controllable source controller starts according to the excitation time.

[0115] Therefore, based on the excitation control device, the start command from the telemetry seismograph can be parsed to obtain the excitation time and model of the controllable source controller. Based on the model, the target excitation signal that can excite the controllable source controller can be determined. When the excitation time arrives, the target excitation signal is sent to the controllable source controller, so that the controllable source controller starts according to the excitation time. Thus, it is not necessary to consider the model of the telemetry seismograph and the controllable source controller, reducing the restriction on the model of the controllable source controller.

[0116] To ensure the controllable seismic source controller starts according to the excitation time, before the main control chip 103 and the optocoupler isolation device 104 operate, the satellite timing device 102 in the excitation control equipment sends timing information to the main control chip 103 and a second pulse signal to the optocoupler isolation device 104. Specifically, the positioning module can send the positioning information of the controllable seismic source controller to the satellite timing device 102. In response to the positioning information, the satellite timing device 102 sends timing information to the main control chip 103 and a second pulse signal to the optocoupler isolation device 104. The timing information can be the accurate time generated by the satellite timing device 102 through relativistic effects after receiving the positioning information; the second pulse signal can be a pulse signal generated by the satellite timing device 102 with a preset time accuracy based on the timing information. For example, the preset time accuracy can be once every whole second with an error within 20 nanoseconds.

[0117] In this way, after receiving the timing and excitation commands, the main control chip 103 standardizes the time according to the timing and then sends an initial excitation signal to the optocoupler isolation device 104. Upon receiving the initial excitation signal and the second pulse signal, the optocoupler isolation device 104 generates a target excitation signal corresponding to the model of the controllable vibration source controller. When the excitation time arrives, it can send the target excitation signal to the controllable vibration source controller to ensure that the controllable vibration source controller starts at the excitation time.

[0118] As the method embodiments are basically similar to the system embodiments, the description is relatively simple, and relevant parts can be found in the description of the system embodiments.

[0119] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0120] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0121] It should also be noted that, in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations, nor should they be construed as indicating or implying relative importance. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. In the absence of further restrictions, an element defined by the phrase "includes a..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes the element.

[0122] The technical solutions provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand this application, and the content of this specification should not be construed as a limitation of this application. Furthermore, for those skilled in the art, there will be different forms of changes in the specific implementation methods and application scope based on this application. It is neither necessary nor possible to exhaustively list all implementation methods here, and obvious changes or modifications derived therefrom are still within the protection scope of this application.

Claims

1. An excitation control device for a controllable vibration source controller, characterized in that, The excitation control device comprises an input and output device, a satellite time service device, a master control chip connected with the input and output device and the satellite time service device respectively, and an optical coupling isolation device connected with the satellite time service device and the master control chip respectively, wherein the optical coupling isolation device is also connected with the controllable source controller; The input and output device is configured to send an excitation instruction to the master control chip after receiving a start instruction for the controllable source controller, wherein the excitation instruction is used to indicate an excitation time and a model of the controllable source controller, different models of the controllable source controller correspond to different excitation signals, and the excitation signals are used to start the controllable source controller; The satellite time service device is configured to send time service to the master control chip and send a second pulse signal to the optical coupling isolation device in response to positioning information of the controllable source controller; The master control chip is configured to send an initial excitation signal to the optical coupling isolation device after receiving the time service and the excitation instruction, wherein the initial excitation signal comprises the excitation time and the model; The optical coupling isolation device is configured to send a target excitation signal corresponding to the model of the controllable source controller to the controllable source controller at the excitation time in response to the second pulse signal and the initial excitation signal, so that the controllable source controller is started according to the excitation time.

2. A firing control apparatus for a vibroseis controller as defined in claim 1, wherein, The optical coupling isolation device comprises a two-way switch device connected with the satellite time service device and the master control chip respectively, and a plurality of optoelectronic couplers connected with the two-way switch device, wherein the plurality of optoelectronic couplers are connected with the controllable source controller; The optoelectronic couplers are configured to send the excitation signals to the controllable source controller, and different optoelectronic couplers send different excitation signals; The two-way switch device is configured to determine a target optoelectronic coupler from the plurality of optoelectronic couplers and forward the second pulse signal and the initial excitation signal to the target optoelectronic coupler in response to the initial excitation signal after receiving the second pulse signal; The target optoelectronic coupler is also configured to send the target excitation signal to the controllable source controller at the excitation time in response to the second pulse signal and the initial excitation signal.

3. A firing control apparatus for a vibroseis controller as defined in claim 2, wherein, In a case where the model of the controllable source controller indicated by the excitation instruction is a first preset model, the plurality of optoelectronic couplers comprise a first optoelectronic coupler; The two-way switch device is also configured to send the second pulse signal and the initial excitation signal to the first optoelectronic coupler in response to the initial excitation signal after receiving the second pulse signal; The first optoelectronic coupler is also configured to send a first target excitation signal to the controllable source controller at the excitation time in response to the second pulse signal and the initial excitation signal.

4. A firing control apparatus for a vibroseis controller as defined in claim 3, wherein, In a case where the model of the controllable source controller indicated by the excitation instruction is a second preset model, the plurality of optoelectronic couplers comprise a second optoelectronic coupler; The double-way switch device is further configured to, after receiving the second pulse signal, send the second pulse signal and the initial excitation signal to the second optoelectronic coupler in response to the initial excitation signal. The second optoelectronic coupler is further configured to, in response to the second pulse signal and the initial excitation signal, send a second target excitation signal to the controllable vibrator controller when the excitation time arrives. The first target excitation signal and the second target excitation signal are different.

5. A firing control apparatus for a vibroseis controller as defined in claim 2 wherein, The optoelectronic coupling isolation device further comprises a reference voltage input device connected to the plurality of optoelectronic couplers. The reference voltage input device is configured to send a reference voltage to the plurality of optoelectronic couplers respectively. The voltage directions of the reference voltages received by different optoelectronic couplers are different.

6. A firing control apparatus for a vibroseis controller as defined in claim 1, wherein, The satellite time service device is further connected to the controllable vibrator controller and is configured to receive an excitation verification signal sent by the controllable vibrator controller, wherein the excitation verification signal is used to indicate the excitation state and the actual excitation time of the controllable vibrator controller, and the excitation state comprises a normal excitation state and an abnormal excitation state. The satellite time service device is further configured to send the excitation state and the actual excitation time to the main control chip in response to the excitation verification signal. The main control chip is further configured to receive the excitation state and the actual excitation time, compare the actual excitation time with the excitation time, and verify whether the controllable vibrator controller is started at the excitation time and whether the controllable vibrator controller is in the normal excitation state.

7. A firing control apparatus for a vibroseis controller as defined in claim 1, wherein, The main control chip comprises a main control processor and a general input-output interface connecting the main control processor with the input-output device, the satellite time service device and the optoelectronic coupling isolation device. The main control processor is configured to receive the excitation instruction sent by the input-output device and the time service sent by the satellite time service device, and send the initial excitation signal to the optoelectronic coupling isolation device.

8. A firing control apparatus for a vibroseis controller as defined in claim 1, wherein, The excitation control device further comprises a positioning module wirelessly connected to the satellite time service device and the controllable vibrator controller respectively. The positioning module is configured to acquire positioning information of the controllable vibrator controller and forward the positioning information to the satellite time service device.

9. A firing control apparatus for a vibroseis controller as defined in claim 1, wherein, The excitation control device further comprises a power supply device connected to the input-output device, the satellite time service device, the main control chip and the optoelectronic coupling isolation device respectively, and configured to supply power to the input-output device, the satellite time service device, the main control chip and the optoelectronic coupling isolation device.

10. A method of shot control for a vibroseis controller, the method comprising: The excitation control method applied to the controllable vibrator controller according to any one of claims 1-9, the excitation control method comprises: In response to a start instruction for the controllable vibrator controller, acquiring an excitation time and a model of the controllable vibrator controller; Based on the model, determining a target excitation signal for exciting the controllable vibrator controller; When the excitation time arrives, sending the target excitation signal to the controllable vibrator controller to make the controllable vibrator controller start according to the excitation time.

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