Seismic source auxiliary excitation device and system

Abstract

The utility model provides a seismic source auxiliary excitation device and system, belonging to the geophysical exploration technology field, the seismic source auxiliary excitation device is connected between an instrument box body and a seismic source control module, and the device comprises a seismic source industrial control all-in-one machine, an ignition module and a signal generator; the first input end of the seismic source industrial control all-in-one machine is connected with the output end of the instrument box body, the second input end of the seismic source industrial control all-in-one machine is connected with the output end of the signal generator, the first output end of the seismic source industrial control all-in-one machine is connected with the input end of the ignition module, and the second output end of the seismic source industrial control all-in-one machine is connected with the input end of the instrument box body; through the seismic source auxiliary excitation device provided by the utility model, the problem that a VibProHD encoder cannot be started by an instrument in a well is solved, reliable starting of the VibProHD encoder, effective triggering of the instrument in the well and high-frequency-band scanning are ensured, functions which cannot be realized by an advanced III encoder are solved, and the reliability and integrity of seismic acquisition data in the well are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of geophysical exploration, and in particular relates to a source auxiliary excitation device and system. Background Art

[0002] At present, with the continuous development of well business, high-temperature and high-pressure VSP logging equipment has become the mainstream of today's VSP logging industry. In order to meet the needs of national green exploration, controllable vibrators have become the mainstream of field operations. Existing equipment generally uses VibPro encoders in the field. With the development of digital technology, VibPro encoders have been gradually upgraded to VibPro_HD encoders. Existing well instruments cannot start VibPro_HD encoders, which seriously affects the progress of field construction. It is urgent to develop a set of online equipment for VibPro encoders and well encoders to reduce the number of well lifting at the construction site, reduce field carbon emissions, broaden the range of excitation sources used by well instruments, and shorten field well occupation time.

[0003] With the continuous development of exploration technology, source sliding scanning and pile-free construction have become common exploration methods. However, in this case, the original Advanced III source encoder did not take related functions into consideration at the initial design stage, resulting in the inability to achieve continuous scanning in the high-frequency band.

[0004] Although the existing VibProHD encoder can realize the above functions through the G3i instrument, due to the particularity of the well business, it is impossible to call multiple sets of G3i instruments to cooperate with the construction in a short time, which brings great difficulties to the actual application. Utility Model Content

[0005] In view of the above problems, an embodiment of the present application provides a source-assisted excitation device and system to overcome the above problems or at least partially solve the above problems.

[0006] In a first aspect of the embodiment of the present application, a source auxiliary excitation device is provided, the source auxiliary excitation device is connected between an instrument box and a source control module, the device comprises: a source industrial control integrated machine, an ignition module and a signal generator;

[0007] The first input end of the seismic source industrial control integrated machine is connected to the output end of the instrument box, the second input end of the seismic source industrial control integrated machine is connected to the output end of the signal generator, the first output end of the seismic source industrial control integrated machine is connected to the input end of the ignition module, and the second output end of the seismic source industrial control integrated machine is connected to the input end of the instrument box;

[0008] The input end of the signal generator is connected to the output end of the source control module, and the input end of the source control module is connected to the output end of the ignition module;

[0009] The source industrial control integrated machine responds to the ignition signal sent by the instrument box and sends the ignition signal to the ignition module;

[0010] The ignition module generates an ignition instruction in response to the ignition signal and sends it to the source control module;

[0011] The source control module, in response to the ignition command, starts the vibration of the source vehicle, generates a first pulse signal, and sends the first pulse signal to the signal generator;

[0012] The signal generator generates a second pulse signal in response to the first pulse signal and sends it to the source industrial control integrated machine;

[0013] The source industrial control integrated machine also generates a third pulse signal in response to the second pulse signal, and sends the third pulse signal to the instrument box;

[0014] The instrument box collects seismic data generated by the source vehicle in response to the third pulse signal.

[0015] Furthermore, the device further comprises: a true reference generator; wherein the input end of the true reference generator is connected to the third output end of the seismic source industrial control integrated machine, and the output end of the true reference generator is connected to the third input end of the seismic source industrial control integrated machine;

[0016] The source industrial control integrated machine also generates a fourth pulse signal in response to the second pulse signal, and sends the fourth pulse signal to the true reference generator;

[0017] The true reference generator generates a true reference signal to the source industrial control integrated computer in response to the fourth pulse signal;

[0018] The seismic source industrial control integrated machine also generates an earthquake report in response to the true reference signal.

[0019] Furthermore, the source control module includes: an encoder and a decoder; wherein the decoder is installed on the source vehicle, the first input end of the encoder is connected to the output end of the ignition module, the second input end of the encoder is connected to the first output end of the decoder, the first output end of the encoder is connected to the input end of the decoder, the second output end of the encoder is connected to the input end of the signal generator, and the second output end of the decoder is connected to the source vehicle.

[0020] Furthermore, the source-assisted excitation device, the instrument housing and the source control module are respectively connected to a time synchronizer; wherein the time synchronizer is used to synchronize the time of the source-assisted excitation device, the instrument housing and the source control module.

[0021] Furthermore, the time difference between the encoder and the decoder is less than the time of one seismic acquisition sample point.

[0022] Furthermore, the seismic source auxiliary excitation device is provided with a first aviation plug and a second aviation plug; wherein, the seismic source industrial control integrated machine is connected to the instrument box through the first aviation plug, and the ignition module and the signal generator are connected to the encoder through the second aviation plug.

[0023] Furthermore, a signal light is provided on the seismic source auxiliary excitation device; wherein, the signal light is lit when the seismic source industrial control integrated computer is started.

[0024] Furthermore, a true reference signal interface is provided on the seismic source auxiliary excitation device; wherein the seismic source industrial control integrated computer is connected to the true reference generator via the true reference signal interface.

[0025] Furthermore, the third pulse signal is different from the fourth pulse signal.

[0026] In a second aspect of the embodiment of the present application, a source-assisted excitation system is provided, the system comprising: an instrument box, a source control module and a source-assisted excitation device; wherein the source-assisted excitation device is connected between the instrument box and the source control module;

[0027] The instrument box is used to send an ignition signal to the source auxiliary excitation device;

[0028] The source auxiliary excitation device is used to receive the ignition signal and generate an ignition command to send to the source control module;

[0029] The seismic source control module is used to receive the ignition command, start the vibration of the seismic source vehicle, generate a first pulse signal, and send the first pulse signal to the seismic source auxiliary excitation device;

[0030] The source auxiliary excitation device is further used to receive the first pulse signal, generate a third pulse signal, and send the third pulse signal to the instrument box;

[0031] The instrument box collects seismic data generated by the source vehicle in response to the third pulse signal.

[0032] A source auxiliary excitation device provided by an embodiment of the present application is connected between an instrument box and a source control module, and the device includes: a source industrial control integrated machine, an ignition module and a signal generator;

[0033] The first input end of the seismic source industrial control integrated machine is connected to the output end of the instrument box, the second input end of the seismic source industrial control integrated machine is connected to the output end of the signal generator, the first output end of the seismic source industrial control integrated machine is connected to the input end of the ignition module, and the second output end of the seismic source industrial control integrated machine is connected to the input end of the instrument box;

[0034] The input end of the signal generator is connected to the output end of the source control module, and the input end of the source control module is connected to the output end of the ignition module; the source industrial control integrated computer responds to the ignition signal emitted by the instrument case and sends the ignition signal to the ignition module; the ignition module responds to the ignition signal, generates an ignition instruction and sends it to the source control module; the source control module responds to the ignition instruction, starts the vibration of the source vehicle, generates a first pulse signal, and sends the first pulse signal to the signal generator; the signal generator responds to the first pulse signal, generates a second pulse signal and sends it to the source industrial control integrated computer; the source industrial control integrated computer also responds to the second pulse signal, generates a third pulse signal, and sends the third pulse signal to the instrument case; the instrument case collects the seismic data generated by the source vehicle in response to the third pulse signal.

[0035] The source auxiliary excitation device provided in this embodiment uses the source industrial control integrated machine, ignition module and signal generator as a signal forwarding auxiliary excitation device between the instrument box (in-well instrument) and the source control module (VibPro_HD encoder), thereby solving the problem that the in-well instrument cannot start the VibPro_HD encoder, ensuring reliable start-up of the VibPro_HD encoder, effectively triggering the in-well instrument, realizing high-frequency band scanning, and solving the functions that cannot be achieved by the advanced III encoder, thereby improving the reliability and integrity of the in-well seismic acquisition data. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0037] Figure 1 It is a functional module schematic diagram of a source auxiliary excitation device provided in an embodiment of the present application;

[0038] Figure 2It is a schematic diagram of the circuit structure of an ignition module provided in an embodiment of the present application;

[0039] Figure 3 is a circuit structure diagram of a signal generator provided in an embodiment of the present application;

[0040] Figure 4 This embodiment of the application provides Figure 1 Schematic diagram of detailed functional modules;

[0041] Figure 5 is a schematic diagram of a circuit structure of a true reference generator provided in an embodiment of the present application;

[0042] Figure 6 is a schematic diagram of a source-assisted excitation device provided in an embodiment of the present application;

[0043] Figure 7 is a schematic diagram of a source-assisted excitation system provided in an embodiment of the present application;

[0044] Figure 8 is a schematic diagram of a pulse signal provided in an embodiment of the present application;

[0045] Description of the drawings: 100 - instrument case; 200 - source auxiliary excitation device; 300 - source control module; 400 - source vehicle; 201 - source industrial control integrated machine; 202 - ignition module; 203 - signal generator; 204 - true reference generator; 205 - first aviation plug; 206 - second aviation plug; 207 - signal light; 208 - true reference signal interface; 301 - encoder; 302 - decoder. DETAILED DESCRIPTION

[0046] The exemplary embodiments of the present application will be described in more detail below in conjunction with the accompanying drawings in the embodiments of the present application. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present application and to enable the scope of the present application to be fully conveyed to those skilled in the art.

[0047] Reference Figure 1 , Figure 1 is a functional module diagram of a source auxiliary excitation device provided in an embodiment of the present application; Figure 1 It can be seen that the source auxiliary excitation device 200 is connected between the instrument box 100 and the source control module 300, and the device includes: a source industrial control integrated machine 201, an ignition module 202 and a signal generator 203;

[0048] The connection relationship between the instrument box 100, the source control module 300, the source industrial control integrated machine 201, the ignition module 202 and the signal generator 203 is as follows:

[0049] The first input end of the seismic source industrial control integrated machine 201 is connected to the output end of the instrument case 100, the second input end of the seismic source industrial control integrated machine 201 is connected to the output end of the signal generator 203, the first output end of the seismic source industrial control integrated machine 201 is connected to the input end of the ignition module 202, and the second output end of the seismic source industrial control integrated machine 201 is connected to the input end of the instrument case 100; the input end of the signal generator 203 is connected to the output end of the seismic source control module 300, and the input end of the seismic source control module 300 is connected to the output end of the ignition module 202.

[0050] The instrument box 100, the source control module 300, the source industrial control integrated machine 201, the ignition module 202 and the signal generator 203 are each configured to have the following functions:

[0051] The source industrial control integrated machine 201 responds to the ignition signal sent by the instrument box 100 and sends the ignition signal to the ignition module 202;

[0052] The ignition module 202 generates an ignition command in response to the ignition signal and sends it to the source control module 300;

[0053] The source control module 300, in response to the ignition command, starts the source vehicle 400 to vibrate, generates a first pulse signal, and sends the first pulse signal to the signal generator 203;

[0054] The signal generator 203 generates a second pulse signal in response to the first pulse signal and sends the second pulse signal to the source industrial control integrated machine 201;

[0055] The source industrial control integrated machine 201 also generates a third pulse signal in response to the second pulse signal, and sends the third pulse signal to the instrument box 100;

[0056] The instrument box 100 collects the seismic data generated by the source vehicle 400 in response to the third pulse signal.

[0057] In this embodiment, VSP seismic acquisition is a seismic exploration technology that studies underground structures and reservoir characteristics by deploying seismic instruments in the well and using seismic sources to excite seismic waves. Specifically, the instrument box 100 controls the seismic source control module 300 to vibrate the seismic source in the seismic source vehicle 400, and then uses the seismic source control module 300 to notify the instrument box 100 to collect seismic data. In this process, the key point is to accurately record the arrival time of the seismic wave to obtain accurate underground images and geological information.

[0058] However, due to the signal delay problem of the instrument itself, there may be inconsistency between the acquisition time of the instrument box 100 (VSP instrument box) and the acquisition time of the source control module 300 (VibPro_HD encoder 301), which will affect the quality of the data and the accuracy of the interpretation. The main problem causing the inconsistency is that the communication information transmitted between the VSP instrument box and the VibPro_HD encoder 301 cannot be correctly recognized by both parties.

[0059] Therefore, this embodiment provides a seismic source auxiliary excitation device 200 connected between the instrument case 100 and the seismic source control module 300, by connecting the first input end of the seismic source industrial control integrated machine 201 to the output end of the instrument case 100, the second input end of the seismic source industrial control integrated machine 201 to the output end of the signal generator 203, the first output end of the seismic source industrial control integrated machine 201 to the input end of the ignition module 202, and the second output end of the seismic source industrial control integrated machine 201 to the input end of the instrument case 100; the input end of the signal generator 203 is connected to the output end of the seismic source control module 300, and the input end of the seismic source control module 300 is connected to the output end of the ignition module 202.

[0060] The source industrial control integrated machine 201 is a device directly connected to the instrument box 100, which can directly identify the signal sent by the instrument box 100, and can also send a signal that can be recognized by the instrument box 100. The source control module 300 is a device directly connected to the signal generator 203 and the ignition module 202 in the source industrial control integrated machine 201. The source control module 300, the signal generator 203 and the ignition module 202 can recognize each other's signals.

[0061] The ignition module 202 is a circuit that issues an ignition command. Figure 2 , Figure 2 is a schematic diagram of a circuit structure of an ignition module 202 provided in an embodiment of the present application; Figure 2 The input end is connected to the source industrial control integrated machine 201, Figure 2 The output end of the seismic source industrial control integrated machine 201 is connected. The ignition signal is sent to the ignition module 202 through the seismic source industrial control integrated machine 201. The ignition signal can be a voltage signal, and then the voltage signal corresponding to the ignition signal is converted into an ignition instruction that can start the seismic source control module 300 through the circuit in the ignition module 202. The ignition instruction can be a working voltage signal for controlling the seismic source control module 300. Under the action of the working voltage signal, the seismic source control module 300 starts the vibration of the seismic source vehicle 400 and generates a first pulse signal. In this embodiment, the first pulse signal is a +5V voltage signal.

[0062] The signal generator 203 is a circuit for processing the first pulse signal. Figure 3 , Figure 3 is a circuit structure diagram of a signal generator provided in an embodiment of the present application; Figure 3 J2 in the circuit is connected to the source control module 300, and H2 is connected to the source industrial control integrated machine 201. When the first pulse signal is sent to the signal generator 203, the signal generator 203 passes Figure 2 The circuit in the first pulse signal processes the clutter signal in the first pulse signal, filters out the interference of unnecessary clutter on the first pulse signal, generates a second pulse signal, and sends it to the source industrial control integrated machine 201. In this embodiment, the second pulse signal is a +5V voltage signal after processing the first pulse signal.

[0063] Then, the source industrial control integrated machine 201 also generates a third pulse signal in response to the second pulse signal, and sends the third pulse signal to the instrument box 100; the third pulse signal is a pulse signal that starts the instrument box 100 to collect seismic data.

[0064] Finally, the instrument box 100 collects the seismic data generated by the source vehicle 400 in response to the third pulse signal.

[0065] Through the source auxiliary excitation device 200 provided in this embodiment, the source industrial control integrated machine 201, the ignition module 202 and the signal generator 203 are used as the signal forwarding auxiliary excitation device between the instrument box 100 (in-well instrument) and the source control module 300 (VibPro_HD encoder 301), which solves the problem that the in-well instrument cannot start the VibPro_HD encoder 301, ensures reliable start-up of the VibPro_HD encoder 301, effectively triggers the in-well instrument, realizes high-frequency band scanning, and solves the functions that the advanced III encoder 301 cannot achieve, thereby improving the reliability and integrity of in-well seismic acquisition data.

[0066] In one embodiment, the device also includes: a true reference generator 204; wherein, the input end of the true reference generator 204 is connected to the third output end of the seismic source industrial control integrated machine 201, and the output end of the true reference generator 204 is connected to the third input end of the seismic source industrial control integrated machine 201; the seismic source industrial control integrated machine 201 also generates a fourth pulse signal in response to the second pulse signal, and sends the fourth pulse signal to the true reference generator 204; the true reference generator 204 generates a true reference signal to the seismic source industrial control integrated machine 201 in response to the fourth pulse signal; the seismic source industrial control integrated machine 201 also generates an earthquake report in response to the true reference signal.

[0067] In this embodiment, refer to Figure 4 , Figure 4 The embodiment of this application provides Figure 1 Schematic diagram of detailed functional modules; Figure 4 In the present invention, the source auxiliary excitation device 200 further includes a true reference generator 204, which is a circuit for generating a true reference signal. Figure 5 , Figure 5 is a schematic diagram of a circuit structure of a true reference generator provided in an embodiment of the present application; Figure 5 J4 in is connected to the third output terminal of the source industrial control integrated machine 201, Figure 5 H3 in is connected to the third input terminal of the seismic source industrial control integrated machine 201. At this time, when the seismic source industrial control integrated machine 201 responds to the second pulse signal, it will generate a fourth pulse signal and send the fourth pulse signal to the true reference generator 204; the true reference generator 204 responds to the fourth pulse signal and generates a true reference signal to the seismic source industrial control integrated machine 201; the seismic source industrial control integrated machine 201 also responds to the true reference signal to generate an earthquake report. The true reference signal is a frequency signal, generally 3HZ~120HZ, reflecting the vibration frequency in the seismic source vehicle 400. The earthquake report includes data such as the output, frequency and vibration of the seismic source vehicle 400.

[0068] In one embodiment, the source control module 300 includes: an encoder 301 and a decoder 302; wherein the decoder 302 is installed on the source vehicle 400, the first input end of the encoder 301 is connected to the output end of the ignition module 202, the second input end of the encoder 301 is connected to the first output end of the decoder 302, the first output end of the encoder 301 is connected to the input end of the decoder 302, the second output end of the encoder 301 is connected to the input end of the decoder 302, the second output end of the encoder 301 is connected to the input end of the signal generator 203, and the second output end of the decoder 302 is connected to the source vehicle 400.

[0069] In this embodiment, refer to Figure 5 The source control module 300 includes: an encoder 301 and a decoder 302; wherein the decoder 302 is installed on the source vehicle 400, since the first input end of the encoder 301 is connected to the output end of the ignition module 202, the second input end of the encoder 301 is connected to the first output end of the decoder 302, the first output end of the encoder 301 is connected to the input end of the decoder 302, the second output end of the encoder 301 is connected to the input end of the signal generator 203, and the second output end of the decoder 302 is connected to the source vehicle 400.

[0070] The encoder 301 and the decoder 302 each transmit data through the internal digital radio, so that the encoder 301 generates a TB signal and sends it to the signal generator 203. The encoder 301 converts the original signal into a coded signal, and the decoder 302 restores the coded signal to the original signal. The TB signal is the first pulse signal. Therefore, when the ignition command is sent to the encoder 301, the encoder 301 will pass the ignition command to the decoder 302 through the digital radio. After receiving the ignition command, the decoder 302 performs a GPS timing self-check and a communication status check with the source vehicle 400. After everything is normal, the decoder 302 returns a signal to the encoder 301, indicating that it is ready. After receiving the return signal, the encoder 301 generates a first pulse signal to the signal generator 203, and the signal generator 203 sends a second pulse signal to the source industrial control integrated machine 201, and then generates a third pulse signal and sends it to the VSP instrument box through the TB signal line, and starts the instrument box 100 for data acquisition.

[0071] In one embodiment, the source-assisted excitation device 200, the instrument housing 100 and the source control module 300 are respectively connected to a time synchronizer; wherein the time synchronizer is used to synchronize the time of the source-assisted excitation device 200, the instrument housing 100 and the source control module 300.

[0072] In this embodiment, the source auxiliary excitation device 200, the instrument box 100 and the source control module 300 are respectively connected to the time synchronizer, which can be a GPS (Global Positioning System) timing system. GPS timing is a way of time synchronization by receiving time signals transmitted by GPS satellites. Its principle is to use the time difference of signal propagation to determine its own position and time, and synchronize its own time by comparing the time signals transmitted by multiple satellites.

[0073] By connecting the source auxiliary excitation device 200, the instrument box 100 and the source control module 300 to GPS timing respectively, the problems caused by the above-mentioned instrument signal delay can be eliminated. The source auxiliary excitation device 200 uses GPS timing, and ensures the consistency of the acquisition time of the VSP instrument and the source through communication and synchronization between the instrument box 100 and the source control module 300.

[0074] In one embodiment, the time difference between the encoder 301 and the decoder 302 is less than the time of one seismic acquisition sample point.

[0075] In this embodiment, in order to ensure that the instrument box 100 and the source control module 300 operate at the same time, it means that the decoder 302 and the encoder 301 encode and decode the signal almost at the same time, so it is necessary to limit the time difference between the encoder 301 and the decoder 302 to less than the time of one seismic acquisition sample point. In this embodiment, one seismic acquisition sample point is 1 second.

[0076] In one embodiment, the seismic source auxiliary excitation device 200 is provided with a first aviation plug 205 and a second aviation plug 206; wherein, the seismic source industrial control integrated machine 201 is connected to the instrument box 100 through the first aviation plug 205, and the ignition module 202 and the signal generator 203 are connected to the encoder 301 through the second aviation plug 206.

[0077] In this embodiment, refer to Figure 6 , Figure 6 is a schematic diagram of a source-assisted excitation device provided in an embodiment of the present application; Figure 6 As can be seen, the source auxiliary excitation device 200 is provided with a first aviation plug 205 and a second aviation plug 206. The aviation plug is a type of connector, consisting of a plug and a socket. The aviation plug has the characteristics of being waterproof, dustproof, high temperature resistant, vibration resistant, and impact resistant. The source industrial control integrated machine 201 is connected to the instrument box 100 through the first aviation plug 205, and the ignition module 202 and the signal generator 203 are connected to the encoder 301 through the second aviation plug 206.

[0078] In one embodiment, a signal light 207 is provided on the seismic source auxiliary excitation device 200; wherein, the signal light 207 is lit when the seismic source industrial control integrated machine 201 is started.

[0079] In this embodiment, refer to Figure 6 A signal light 207 is provided on the source auxiliary excitation device 200. The signal light 207 lights up when the source industrial control integrated machine 201 is started, so as to inform relevant personnel that the device has been started.

[0080] In one embodiment, a true reference signal interface 208 is provided on the seismic source auxiliary excitation device 200 ; wherein the seismic source industrial control integrated machine 201 is connected to the true reference generator 204 via the true reference signal interface 208 .

[0081] In this embodiment, refer to Figure 6 The source auxiliary excitation device 200 is provided with a true reference signal interface 208 ; the true reference signal interface 208 is a 9 mm interface, and the source industrial control integrated machine 201 is connected to the true reference generator 204 via the true reference signal interface 208 .

[0082] In one embodiment, since the third pulse signal acts on the instrument box 100 and starts the instrument box 100 to collect data, and the fourth pulse signal acts on the true reference generator 204 to determine whether it generates a true reference signal, the third pulse signal is different from the fourth pulse signal because the acting devices are different.

[0083] According to a second aspect of an embodiment of the present application, a source-assisted excitation system is provided, the system comprising: an instrument case 100, a source control module 300 and a source-assisted excitation device 200; wherein the source-assisted excitation device 200 is connected between the instrument case 100 and the source control module 300; the instrument case 100 is used to send an ignition signal to the source-assisted excitation device 200; the source-assisted excitation device 200 is used to receive the ignition signal, and generate an ignition instruction to send to the source control module 300; the source control module 300 is used to receive the ignition instruction, start the vibration of the source vehicle 400, and generate a first pulse signal, and send the first pulse signal to the source-assisted excitation device 200; the source-assisted excitation device 200 is also used to receive the first pulse signal, generate a third pulse signal, and send the third pulse signal to the instrument case 100; the instrument case 100, in response to the third pulse signal, collects the seismic data generated by the source vehicle 400.

[0084] In this embodiment, the following will refer to Figure 7 , Figure 7 is a schematic diagram of a source-assisted excitation system provided in an embodiment of the present application, combined with Figure 4 The use process of the source auxiliary excitation device 200 provided in the application is described in detail:

[0085] Figure 7 VSP instrument box Figure 4 The instrument box 100 in the VSP box corresponds to the VibProHD source controller Figure 4 The source-assisted excitation device 200 in the embodiment of the present invention.

[0086] First, the VSP instrument box is connected to the GPS antenna through a wire, that is, GPS timing, to synchronize the seismic data it generates. The VSP box is connected to the GPS antenna of the VibProHD source controller, and the source vehicle is connected to the GPS antenna.

[0087] Then, using the acquisition software inside the VSP instrument housing, an ignition signal is sent to the VSP housing and the VibProHD source controller under the triggering of the ignition signal. The VSP housing and the VibProHD source controller first perform a self-test to check their own GPS timing and working status. If the self-test is normal, the VSP housing and the VibProHD source controller send an ignition command to the encoder. The encoder transmits the command to the decoder through the digital radio. After receiving the command, the decoder performs a GPS timing self-test and a communication status check with the source vehicle. After everything is normal, the decoder returns a signal to the encoder (7), indicating that it is ready. After receiving the return signal, the encoder sends a first pulse signal to notify the VSP housing and the VibProHD source controller. After a 1-second delay, the VSP housing and the VibProHD source controller send a 5V pulse signal (second pulse signal) through the TB signal line to start the VSP instrument housing for data acquisition. In this way, the VSP instrument housing can accurately record seismic signals and other data for subsequent analysis and research.

[0088] Reference Figure 8 , Figure 8 It is a schematic diagram of a pulse signal provided in an embodiment of the present application.

[0089] Figure 8 The three pulse signals from top to bottom on the right side of the figure represent the TB signal of the encoder, the verification TB signal of the decoder, and the TB signal of the decoder respectively.

[0090] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0091] Although the preferred embodiments of the utility model embodiments have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the utility model embodiments.

[0092] Finally, it should be noted that, in this article, relational terms such as first and second, etc. 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. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, article or terminal device including the elements.

[0093] The above is a detailed introduction to a source-assisted excitation device and system provided by the utility model. Specific examples are used in this article to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the utility model and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A source-assisted excitation device, characterized in that: The seismic source auxiliary excitation device is connected between the instrument box and the seismic source control module, and the device includes: a seismic source industrial control integrated machine, an ignition module and a signal generator; The first input end of the seismic source industrial control integrated machine is connected to the output end of the instrument box, the second input end of the seismic source industrial control integrated machine is connected to the output end of the signal generator, the first output end of the seismic source industrial control integrated machine is connected to the input end of the ignition module, and the second output end of the seismic source industrial control integrated machine is connected to the input end of the instrument box; The input end of the signal generator is connected to the output end of the source control module, and the input end of the source control module is connected to the output end of the ignition module; The source industrial control integrated machine responds to the ignition signal sent by the instrument box and sends the ignition signal to the ignition module; The ignition module generates an ignition instruction in response to the ignition signal and sends it to the source control module; The source control module, in response to the ignition command, starts the vibration of the source vehicle, generates a first pulse signal, and sends the first pulse signal to the signal generator; The signal generator generates a second pulse signal in response to the first pulse signal and sends it to the source industrial control integrated machine; The source industrial control integrated machine also generates a third pulse signal in response to the second pulse signal, and sends the third pulse signal to the instrument box; The instrument box collects seismic data generated by the source vehicle in response to the third pulse signal.

2. The source-assisted excitation device according to claim 1, characterized in that: The device further comprises: a true reference generator; wherein the input end of the true reference generator is connected to the third output end of the seismic source industrial control integrated machine, and the output end of the true reference generator is connected to the third input end of the seismic source industrial control integrated machine; The source industrial control integrated machine also generates a fourth pulse signal in response to the second pulse signal, and sends the fourth pulse signal to the true reference generator; The true reference generator generates a true reference signal to the source industrial control integrated computer in response to the fourth pulse signal; The seismic source industrial control integrated machine also generates an earthquake report in response to the true reference signal.

3. The source-assisted excitation device according to claim 1, characterized in that: The source control module includes: an encoder and a decoder; wherein the decoder is installed on the source vehicle, the first input end of the encoder is connected to the output end of the ignition module, the second input end of the encoder is connected to the first output end of the decoder, the first output end of the encoder is connected to the input end of the decoder, the second output end of the encoder is connected to the input end of the signal generator, and the second output end of the decoder is connected to the source vehicle.

4. The source-assisted excitation device according to claim 1 or 2, characterized in that: The source-assisted excitation device, the instrument housing and the source control module are respectively connected to a time synchronizer; wherein the time synchronizer is used to synchronize the time of the source-assisted excitation device, the instrument housing and the source control module.

5. The source-assisted excitation device according to claim 3, characterized in that: The time difference between the encoder and the decoder is less than the time of one seismic acquisition sample point.

6. The source-assisted excitation device according to claim 3, characterized in that: The seismic source auxiliary excitation device is provided with a first aviation plug and a second aviation plug; wherein, the seismic source industrial control integrated machine is connected to the instrument box through the first aviation plug, and the ignition module and the signal generator are connected to the encoder through the second aviation plug.

7. The source-assisted excitation device according to claim 1, characterized in that: A signal light is provided on the seismic source auxiliary excitation device; wherein, the signal light is lit when the seismic source industrial control integrated computer is started.

8. The source-assisted excitation device according to claim 2, characterized in that: The seismic source auxiliary excitation device is provided with a true reference signal interface; wherein the seismic source industrial control integrated computer is connected to the true reference generator via the true reference signal interface.

9. The source-assisted excitation device according to claim 2, characterized in that: The third pulse signal is different from the fourth pulse signal.

10. A source-assisted excitation system, characterized in that: The system comprises: an instrument box, a source control module and a source auxiliary excitation device; wherein the source auxiliary excitation device is connected between the instrument box and the source control module; The instrument box is used to send an ignition signal to the source auxiliary excitation device; The source auxiliary excitation device is used to receive the ignition signal and generate an ignition command to send to the source control module; The seismic source control module is used to receive the ignition command, start the vibration of the seismic source vehicle, generate a first pulse signal, and send the first pulse signal to the seismic source auxiliary excitation device; The source auxiliary excitation device is further used to receive the first pulse signal, generate a third pulse signal, and send the third pulse signal to the instrument box; The instrument box collects seismic data generated by the source vehicle in response to the third pulse signal.

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