CN117075186A - Intelligent efficient excitation device and method based on remote explosion system - Google Patents
Intelligent efficient excitation device and method based on remote explosion system Download PDFInfo
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Abstract
The application provides an intelligent efficient excitation device and method based on a remote explosion system, wherein the intelligent efficient excitation device comprises a command computer, an excitation command box, an encoder unit and a plurality of remote control explosion devices, each remote control explosion device comprises a decoder unit and an explosive source, the decoder unit sends Ready signals, wellhead GNSS coordinates and numbers of the decoder unit to the encoder unit after the remote control explosion devices are Ready, the command computer calculates distances from three excitation points excited before according to the received wellhead GNSS coordinates, selects proper excitation points and sends explosion signals to the corresponding decoder unit through the encoder unit, and the decoder unit generates high-pressure excitation explosive sources after receiving the explosion signals. The application can complete intelligent efficient excitation of the explosive source and record the excitation time, has the characteristics of intelligence, high efficiency, flexibility, portability, simple operation and the like, and can greatly improve the production efficiency.
Description
Technical Field
The application relates to the fields of engineering geophysical prospecting, coal fields and petroleum seismic prospecting, in particular to an intelligent efficient excitation device and method based on a traditional remote explosion system in the explosive source construction process.
Background
The remote control explosion synchronization system (for short, remote explosion system) is an important matched device for seismic exploration, and has the main functions of controlling the starting of the excitation of a seismic source and the data acquisition and ensuring the synchronization of the excitation of the seismic source and the starting of the data acquisition. When the explosive source is adopted for seismic exploration, the system for controlling the excitation and receiving synchronization of the seismic waves generally comprises an encoder, a decoder and a matched communication radio station, wherein the encoder and the decoder play a very important role and are responsible for remote high-precision synchronization of detonation and data sampling records. However, the remote explosion control system is controlled by adopting a traditional large-scale earthquake instrument, so that the large-scale earthquake instrument is very inconvenient for small projects, complex terrains and other projects, and a complete intelligent high-efficiency excitation device and method for exciting an explosive source are not provided.
In recent years, the node seismograph is the development direction of land seismic exploration and acquisition equipment, has rapid development, and meets the requirements of high-density and high-efficiency acquisition. The node seismograph stores and self-acquires the seismic data, operation and recording of a large-scale seismic instrument are not needed, and only the source excitation TB time is needed to be provided for segmentation and synthesis of the node seismic data.
In application number: 201310295967.2, a full-automatic digital signal remote explosion system for seismic exploration and a remote explosion method thereof, wherein the system comprises a signal transmitting end and at least one signal receiving end; the signal transmitting end comprises a seismometer, an encoder and a central control unit; the signal output ends of the seismometer and the central control unit are respectively connected with the signal input end of the encoder; the signal receiving end comprises a decoder, a wellhead detector and a detonation element; the signal output end of the decoder is respectively connected with the signal input end of the wellhead detector and the detonation element; the encoder is connected with the signal end of the decoder through a wireless communication module; according to the method, remote explosion is realized in a wireless communication mode, and protection measures such as mechanical pushing elements and digital signal multiple verification are adopted to effectively reduce explosive detonation caused by misoperation, improve the safety coefficient of constructors and the working efficiency of an explosion focus, and realize high-precision synchronous control and digitization and micromation of equipment. The patent realizes a conventional seismic exploration digital signal remote explosion system and remote explosion thereof, still depends on a conventional large-scale seismic instrument, and does not relate to an intelligent efficient excitation method, and cannot meet the current efficient acquisition requirement.
In application number: 201511030924.7 relates to a control method and a device of a pulse excitation system, comprising: setting an excitation time point of each excitation device in the plurality of excitation devices; configuring a synchronous clock in each of the plurality of pumping devices according to the pumping time points set for each of the plurality of pumping devices; the synchronous clock in each of the plurality of excitation devices is continuously clocked; when the excitation time point of the excitation device is reached, the synchronous clock triggers to generate a pulse signal to excite the excitation device where the synchronous clock is positioned. The device and the method mainly effectively avoid overlapping of excitation time among different excitation devices, improve the construction efficiency of the node instrument and avoid simultaneous excitation or aftershock interference. When the explosive units are too much, the setting of the excitation time points of each excitation device is difficult to carry out, and once a certain explosive unit misses the excitation time point of the explosive unit, the next round of time point is waited, the waiting time is long, the time-dependent groups of the explosive unit cannot be utilized, and the construction efficiency is greatly influenced.
In application number: 201510548374.1, an electronic digital detonator remote explosion system and a method thereof are disclosed, wherein the electronic digital detonator remote explosion system comprises an encoder, a decoder and an initiator; the encoder converts the starting command sent by the seismograph into an ignition excitation command and sends the ignition excitation command to the decoder; when the decoder detects that the initiation preparation is finished, a closed loop is formed according to the excitation command and a high-voltage pulse signal is generated for the initiator; when the exploder detects the rising edge of the high-voltage pulse signal, an exploding pulse is output to control the explosion of the electronic digital detonator; simultaneously, the electronic digital detonator returns CTB pulse to the exploder before the explosion moment; the exploder controls a discharge loop to be formed in the decoder according to the simulated CTB pulse, and the decoder generates a CTB signal to the encoder; the initiation control mode of the closed loop can solve the problem of unstable error of the exploration detonator in the initiation process, and the consistency requirement between address exploration initiation and signal acquisition is greatly improved. At present, in seismic exploration, electronic digital detonators are not popularized and applied in large scale, and the patent also does not provide an intelligent high-efficiency excitation method and an acquisition method of high-precision excitation TB time.
The prior art is greatly different from the device and the method, so that the device and the method for intelligent efficient excitation with the characteristics of intelligence, high efficiency, flexibility, portability, simplicity in operation and the like are needed to be developed, the limitation of the excitation system of the traditional large-scale earthquake instrument and the like can be eliminated, the device and the method for controlling and recording the excitation TB time based on the traditional remote explosion system are provided, and the device and the method for intelligent efficient excitation based on the remote explosion system are invented, so that the technical problems are solved.
Disclosure of Invention
The application aims to provide an intelligent efficient excitation device and method based on a traditional remote explosion system, which are free from the control of excitation systems such as a traditional large-scale seismic instrument and the like, can realize the intelligent efficient excitation control based on the traditional remote explosion system, and record the high-precision excitation TB time.
The aim of the application can be achieved by the following technical measures: the intelligent efficient excitation device based on the remote explosion system comprises a command computer, an encoder unit and a plurality of remote control detonating devices, wherein the excitation command box is respectively connected with the command computer and the encoder unit, each remote control detonating device comprises a decoder unit, an excitation control box and an explosive source, the decoder unit is connected with the explosive source and sends Ready signals, wellhead GNSS coordinates and the serial numbers of the decoder unit to the encoder unit after the remote control detonating device is Ready, the encoder unit transmits the received signals to the command computer through the excitation command box, the command computer calculates distances from the three excitation points excited before according to the received wellhead GNSS coordinates, selects proper excitation points and sends detonating signals to the corresponding decoder unit through the encoder unit, and the decoder unit generates high-voltage excitation of the explosive source after receiving the detonating signals.
The aim of the application can be achieved by the following technical measures:
each remote control detonating device further comprises an excitation control box which is connected with the decoder unit, records wellhead GNSS coordinates and transmits the wellhead GNSS coordinates to the decoder unit.
The excitation control box also performs GNSS time service to control the decoder unit to generate pulse signals in the whole millisecond to trigger the explosive source, simultaneously record the explosive excitation time to obtain the actual detonation GNSS time, and transmit the actual detonation GNSS time to the encoder unit through the decoder unit.
The excitation command box performs GNSS time service, generates pulse signals as detonation signals to trigger the encoder unit in a control way in whole milliseconds, acquires detonation signal GNSS time, and transmits the detonation signal GNSS time to the command computer.
The command computer records the detonation signal GNSS time and the actual detonation GNSS time, judges whether the excitation is effective according to the time difference between the detonation signal GNSS time and the actual detonation GNSS time, and controls other shots to be automatically excited.
The command computer calculates the distance D between the ready excitation point and the three previous excitation points according to the predesigned time-distance T-D rule, and the excitation interval T corresponding to the T-D rule, preferably the excitation point with the smallest T, and sends a detonation signal to the decoder unit corresponding to the excitation point.
The explosive source comprises a shaped charge and an electric detonator for generating seismic waves.
The object of the application can also be achieved by the following technical measures: the intelligent efficient excitation method based on the remote explosion system adopts the intelligent efficient excitation device based on the remote explosion system and comprises the following steps:
step 1, connecting an excitation command box with an encoder unit and a command computer respectively;
step 2, the decoder unit is respectively connected with the excitation control box and the explosive source, the remote control detonating device sends Ready signals, wellhead GNSS coordinates and the serial numbers of the decoder unit to the encoder unit after being Ready, and the encoder unit sends the received signals to the command computer through the excitation command box;
step 3, after receiving Ready signals of a plurality of groups of decoder units, the command computer calculates the distance from the three exciting points excited before according to the received wellhead GNSS coordinates, selects proper exciting points and sends detonation signals to the decoder units;
and 4, immediately generating a high-voltage excitation explosive source after the decoder unit receives the detonation signal sent by the encoder unit.
The aim of the application can be achieved by the following technical measures:
in step 2, the excitation control box records wellhead GNSS coordinates and transmits the wellhead GNSS coordinates to the decoder unit, and carries out GNSS timing, and after the GNSS satellite searching device is positioned and clock synchronized, state information of GNSS synchronization completion is sent to the command computer to indicate that the remote control detonating device is ready.
In step 3, after receiving Ready signals of the plurality of groups of decoder units in step 2, the command computer calculates distances D from three excitation points excited before according to the received plurality of groups of wellhead GNSS coordinates, calculates excitation intervals T, preferably excitation points with minimum T, according to a time-distance T-D rule pre-designed by the command computer, and sends a detonation signal to the preferred decoder unit when waiting for reaching an excitation time, and records the detonation signal GNSS time.
In step 4, the control box is triggered to perform GNSS timing so as to control the decoder unit to generate pulse signals in the whole millisecond to trigger the explosive source, and at the same time, the actual detonation GNSS time is obtained by recording the explosive excitation time, and is transmitted to the encoder unit through the decoder unit.
The intelligent efficient excitation method based on the remote explosion system further comprises the step 5 of commanding the computer to record the detonation signal GNSS time and the actual detonation GNSS time respectively after the step 4, and judging that the excitation is effective when the time difference between the detonation signal GNSS time and the actual detonation GNSS time is not more than 100 mu s.
In step 5, the command computer records the detonation signal GNSS time and the actual detonation GNSS time respectively, completes the intelligent efficient excitation process, updates the distance D and the excitation interval T between the other ready remote control detonation devices and the three excitation points before excitation, and performs the loop of step 2-step 5 to excite the next excitation point until all the points are excited.
The application provides an intelligent efficient excitation device and method based on a remote explosion system, aiming at the problems in the efficient excitation seismic project that the traditional remote explosion system is inconvenient to control or the construction of the large-scale seismic instrument is not needed. The intelligent high-efficiency excitation device and the method based on the remote explosion system are free from the control of excitation systems such as traditional large-scale seismometers, realize the intelligent high-efficiency excitation control based on the traditional remote explosion system, record accurate excitation TB time, have the characteristics of intelligence, high efficiency, flexibility, portability, simplicity in operation and the like, have better use effect when being matched with the node seismometers, and greatly improve the production efficiency.
Drawings
FIG. 1 is a flow chart of an embodiment of an intelligent efficient excitation method based on a remote explosion system of the present application;
fig. 2 is a block diagram of an embodiment of an intelligent efficient excitation device based on a remote explosion system according to the present application.
Detailed Description
In order to make the above and other objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below, wherein the embodiments are described in detail only in some but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, shall fall within the scope of the application.
The intelligent efficient excitation method based on the remote explosion system comprises the following steps: setting the functions of an encoder and a decoder of the remote explosion system, and configuring a corresponding communication radio station and a control box; the encoder is connected with the excitation command box and connected with the command computer; the decoder is respectively connected with the excitation control box and the explosive source, and sends a Ready signal, wellhead GNSS coordinates and a decoder number to the encoder through the radio station after the encoder is Ready, and the encoder sends the Ready signal to the command computer through the control box; after the command computer receives Ready signals of a plurality of groups of decoders, calculating the distance between the Ready signals and the three exciting points excited before according to the received GNSS coordinates, selecting proper exciting points according to a pre-designed time-distance rule, sending detonating signals to the exciting points, and recording the GNSS time of the detonating signals; after receiving the trigger signal sent by the encoder, the decoder immediately generates high-voltage excitation explosive vibration source, sends actual detonation GNSS time to the encoder, and sends the actual detonation GNSS time to the command computer; and the command computer records the detonation signal GNSS time and the actual detonation GNSS time respectively, and the intelligent efficient excitation process is completed. The device and the method have the characteristics of intelligence, high efficiency, flexibility, portability, simple operation and the like, greatly improve the production efficiency, and have better use effect when being matched with the node seismograph.
The application discloses an intelligent efficient excitation method based on a remote explosion system, which specifically comprises the following steps of:
in step 1, the remote explosion system is provided with the functions of an encoder and a decoder according to the requirement, and a corresponding communication radio station and a command control box or an excitation control box are configured, and the encoder and the decoder are connected through the communication radio station. At least 2 remote explosion system units are required to work together during construction, one unit is used as an encoder, the other unit is used as a decoder, and a plurality of remote explosion system units can also work together, one unit is used as an encoder, and the other units are used as decoders. The common seismic acquisition process is to provide 1 encoder and 10-30 decoders.
In step 2, a command control box with a GNSS time service device, a whole millisecond control circuit and a main control circuit is respectively connected with an encoder and a command computer, the GNSS time service device of the command control box is started, and after the GNSS star searching device is positioned and clock synchronized, state information of GNSS synchronization completion is sent to the command computer.
In step 3, the decoder is respectively connected with the excitation control box and the explosive source, acquires wellhead GNSS coordinates at the wellhead, stores the wellhead GNSS coordinates in the excitation control box, and sends Ready signals, wellhead GNSS coordinates and decoder numbers to the encoder through the radio station after the wellhead GNSS coordinates are Ready, and the encoder sends the Ready signals to the command computer through the control box to wait for the command computer to send commands.
In step 4, after the command computer receives Ready signals of the multiple groups of decoders in step 3, the distance D between the command computer and the three excitation points is calculated according to the received multiple groups of GNSS coordinates, and the excitation interval T, preferably the excitation point with the minimum T, is calculated according to a time-distance (T-D) rule pre-designed by the command computer, the command control box generates an excitation pulse to trigger the encoder after the waiting time reaches the excitation time for a whole second, the pulse amplitude is 5V, the encoder immediately sends a detonation signal to the preferred decoder, and the command computer records the GNSS time of the detonation signal.
In step 5, after receiving the trigger signal sent by the encoder, the decoder immediately generates 400V high-voltage pulse to excite the explosive source, obtains the actual detonation GNSS time through the excitation control box, sends the actual detonation GNSS time to the encoder, and transfers the detonation GNSS time to the command computer.
In step 6, the command computer records the detonation signal GNSS time and the actual detonation GNSS time respectively, completes the intelligent efficient excitation process, judges the time difference of the two GNSS times, and is qualified when the time difference is less than 100 mu s, and the unqualified detonation needs to be excited again. Meanwhile, the command computer automatically updates the distances D and the excitation intervals T between all the prepared decoders and the three excitation points excited before, and performs the loop of steps 3-6 to excite all the prepared excitation points.
The application also provides an intelligent efficient excitation device based on the remote explosion system, which comprises:
one or more decoder remote explosion system units are respectively connected with an excitation control box, one encoder remote explosion system unit which is in communication connection with all the decoder units through a radio station, a command control box which is connected with the encoder units, and a command computer which is connected with the excitation control box;
a decoder unit: the remote explosion device is mainly used for exciting an explosive source and sending a Ready signal, wellhead GNSS coordinates and actual detonation GNSS time to the encoder;
excitation control box: the method is mainly used for GNSS time service, controlling the generation of pulse signals in whole milliseconds to trigger an explosive source, acquiring GNSS time at the moment of explosive excitation, recording wellhead GNSS coordinates and being responsible for information transmission of all parts;
explosive source: comprises a molding explosive package and an electric detonator for generating earthquake waves;
an encoder unit: the remote explosion device is mainly used for sending an explosion signal to the decoder unit;
command control box: the method is mainly used for GNSS time service, controlling the generation of pulse signals in whole milliseconds to trigger an encoder, acquiring the GNSS time of detonation signals and responsible for information transmission of all parts;
and (3) commanding the computer to: the method is mainly used for sending a detonation signal instruction to an excitation control box, presetting a time-distance (T-D) rule, calculating the distance D between a ready excitation point and a previous excitation point, and an excitation interval T, preferably a T minimum excitation point, corresponding to the T-D rule, recording the detonation signal GNSS time and the actual detonation GNSS time, and automatically controlling the circulation.
The following are several specific examples of the application of the present application.
Example 1
In a specific embodiment 1 to which the present application is applied, as shown in fig. 1, a flowchart of an intelligent efficient excitation method based on a remote explosion system of the present application is shown.
In step 101, the remote explosion system is set with encoder and decoder functions as required, and corresponding communication stations and command control boxes or excitation control boxes are configured, and the encoder and decoder are connected through the communication stations. At least 2 remote explosion system units are required to work together during construction, one unit is used as an encoder, the other unit is used as a decoder, and a plurality of remote explosion system units can also work together, one unit is used as an encoder, and the other units are used as decoders. The common seismic acquisition process is to provide 1 encoder and 10-30 decoders. Step 102 is performed simultaneously.
In step 102, a command control box with a GNSS time service device, a whole millisecond control circuit and a main control circuit is connected with an encoder and a command computer respectively, and the GNSS time service device of the command control box is started, and after the GNSS satellite searching device is positioned and clock synchronized, status information of GNSS synchronization completion is sent to the command computer. The flow proceeds to step 103.
In step 103, the decoder is connected with the excitation control box and the explosive source respectively, acquires wellhead GNSS coordinates at the wellhead, stores the wellhead GNSS coordinates in the excitation control box, sends Ready signals, wellhead GNSS coordinates and decoder numbers to the encoder through the radio station after the wellhead GNSS coordinates are Ready, and the encoder sends the Ready signals to the command computer through the control box to wait for the command computer to send commands. The flow proceeds to step 104.
In step 104, after the command computer receives the Ready signals of the multiple groups of decoders in step 3, the distances D from the three excitation points excited before are calculated according to the received multiple groups of GNSS coordinates, and the excitation intervals T, preferably the excitation points with the minimum T, are calculated according to the time-distance (T-D) rule pre-designed by the command computer, the command control box generates excitation pulses to trigger the encoder after the waiting time reaches the excitation time for a whole second, the pulse amplitude is 5V, the encoder immediately sends a detonation signal to the preferred decoder, and the command computer records the GNSS time of the detonation signal. The flow proceeds to step 105.
In step 105, the decoder receives the trigger signal sent by the encoder, and immediately generates a 400V high-voltage pulse to excite the explosive source, and automatically preferably enters the automatic excitation of the next excitation point. And the actual detonation GNSS time is acquired through the excitation control box, sent to the encoder and transferred to the command computer. The flow proceeds to step 106.
In step 106, the command computer records the detonation signal GNSS time and the actual detonation GNSS time respectively, completes the intelligent efficient excitation process, judges the time difference between the two GNSS times, and is qualified if the time difference is less than 100 mu s, and the unqualified is required to be excited again. Meanwhile, the command computer automatically updates the distances D and the excitation intervals T between all the prepared decoders and the three excitation points excited before, and performs the loop of steps 103-106 to excite all the prepared excitation points.
Example 2
In a specific embodiment 2 to which the present application is applied, as shown in fig. 2, a block diagram of an intelligent efficient excitation device based on a remote explosion system according to the present application is shown, where the device includes:
one or more decoder remote explosion system units are respectively connected with an excitation control box, one encoder remote explosion system unit which is in communication connection with all the decoder units through a radio station, a command control box which is connected with the encoder units, and a command computer which is connected with the excitation control box;
decoder unit 201: the remote explosion device is mainly used for exciting an explosive source and sending a Ready signal, wellhead GNSS coordinates and actual detonation GNSS time to the encoder;
excitation control box 202: the method is mainly used for GNSS time service, controlling the generation of pulse signals in whole milliseconds to trigger an explosive source, acquiring GNSS time at the moment of explosive excitation, recording wellhead GNSS coordinates and being responsible for information transmission of all parts;
explosive source 203: comprises a molding explosive package and an electric detonator for generating earthquake waves; the method comprises the steps of carrying out a first treatment on the surface of the
Encoder unit 204: the remote explosion device is mainly used for sending an explosion signal to the decoder unit;
command control box 205: the method is mainly used for GNSS time service, controlling the generation of pulse signals in whole milliseconds to trigger an encoder, acquiring the GNSS time of detonation signals and responsible for information transmission of all parts;
command computer 206: the method is mainly used for sending a detonation signal instruction to an excitation control box, presetting a time-distance (T-D) rule, calculating the distance D between a ready excitation point and three previous excitation points and an excitation interval T corresponding to the T-D rule, preferably a T minimum excitation point, recording the detonation signal GNSS time and the actual detonation GNSS time, judging whether excitation is effective according to the time difference of the two, and controlling other shot points to be excited automatically. In one embodiment, the excitation is judged to be valid when the time difference between the two is not more than 100 μs.
Example 3
In the embodiment 3 of the application, 1 encoder and 30 decoders are provided according to project plans, and corresponding command control boxes, excitation control boxes and other devices are provided; the simplest rule of distance and time (T-D) is adopted, namely when the distance D is less than or equal to 10km, the excitation interval is 24s, and when the distance D is more than 10km, the excitation interval is 20s; when the field decoder group is constructed, a Ready signal, wellhead GNSS coordinates and a decoder number are sent to the encoder after the field decoder group is Ready; the command computer connected with the encoder performs queuing preparation on all the prepared decoder groups, calculates the distances and excitation intervals of all the prepared decoder groups, and metaphorically has two groups of prepared, wherein the first group and the first three cannon excitation time intervals are respectively as follows: (20 s,16s,20 s), the other group and the first three cannons are excited with time intervals (20 s,24s,20 s), the first group is excited to wait for 20s, the second group is excited to wait for 24s, and therefore the first group is excited preferentially; updating the second group of distance and time after excitation, and re-prioritizing; the queue preparation is also entered when the other groups are ready, and the excitation is cycled until all excitation work is completed.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present application, and is not intended to limit the present application, but although the present application has been described in detail with reference to the foregoing embodiment, it will be apparent to those skilled in the art that modifications may be made to the technical solution described in the foregoing embodiment, or equivalents may be substituted for some of the technical features thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Other than the technical features described in the specification, all are known to those skilled in the art.
Claims (13)
1. The intelligent efficient excitation device based on the remote explosion system is characterized by comprising a command computer, an encoder unit and a plurality of remote control detonating devices, wherein the excitation command box is respectively connected with the command computer and the encoder unit, each remote control detonating device comprises a decoder unit, an excitation control box and an explosive source, the decoder unit is connected with the explosive source and sends Ready signals, wellhead GNSS coordinates and the serial numbers of the decoder unit to the encoder unit after the remote control detonating device is Ready, the encoder unit transmits the received signals to the command computer through the excitation command box, the command computer calculates distances from three excitation points excited before according to the received wellhead GNSS coordinates, selects proper excitation points and sends detonation signals to the corresponding decoder unit through the encoder unit, and the decoder unit generates high-voltage excitation of the explosive source after receiving the detonation signals.
2. The intelligent efficient excitation device based on a remote explosion system according to claim 1, wherein each remote control initiation device further comprises an excitation control box, wherein the excitation control box is connected to the decoder unit, records wellhead GNSS coordinates and transmits the same to the decoder unit.
3. The intelligent efficient excitation device based on a remote explosion system according to claim 2, wherein the excitation control box further performs GNSS timing to control the decoder unit to generate pulse signals to trigger the explosive source in whole milliseconds, and simultaneously record the explosive excitation time to obtain an actual detonation GNSS time, and transmit the actual detonation GNSS time to the encoder unit through the decoder unit.
4. A remote explosion system based intelligent high-efficiency excitation device according to claim 3, wherein the excitation command box performs GNSS timing to control the generation of pulse signals as initiation signals to trigger the encoder unit in whole milliseconds, and simultaneously acquires initiation signal GNSS time and transmits the initiation signal GNSS time to the command computer.
5. The intelligent efficient excitation device based on a remote explosion system according to claim 4, wherein the command computer records the detonation signal GNSS time and the actual detonation GNSS time, judges whether excitation is effective according to the time difference between the detonation signal GNSS time and the actual detonation GNSS time, and controls other shots to be automatically excited.
6. The intelligent efficient excitation device based on a remote explosion system according to claim 1, wherein the command computer calculates the distance D between the ready excitation point and the three previous excitation points according to a predesigned time-distance T-D rule, and the excitation interval T corresponding to the T-D rule, preferably the excitation point with the smallest T, and sends an initiation signal to the decoder unit corresponding to the excitation point.
7. The intelligent high-efficiency excitation device based on a remote explosion system according to claim 1, wherein the explosive source comprises a shaped charge and an electric detonator for generating earthquake waves.
8. The intelligent efficient excitation method based on the remote explosion system is characterized in that the intelligent efficient excitation method based on the remote explosion system adopts the intelligent efficient excitation device based on the remote explosion system as claimed in claim 1, and comprises the following steps:
step 1, connecting an excitation command box with an encoder unit and a command computer respectively;
step 2, the decoder unit is respectively connected with the excitation control box and the explosive source, the remote control detonating device sends Ready signals, wellhead GNSS coordinates and the serial numbers of the decoder unit to the encoder unit after being Ready, and the encoder unit sends the received signals to the command computer through the excitation command box;
step 3, after receiving Ready signals of a plurality of groups of decoder units, the command computer calculates the distance from the three exciting points excited before according to the received wellhead GNSS coordinates, selects proper exciting points and sends detonation signals to the decoder units;
and 4, immediately generating a high-voltage excitation explosive source after the decoder unit receives the detonation signal sent by the encoder unit.
9. The intelligent efficient excitation method based on the remote explosion system according to claim 8, wherein in step 2, the excitation control box records wellhead GNSS coordinates and transmits the wellhead GNSS coordinates to the decoder unit, and performs GNSS timing, and after the GNSS star searching device is positioned and clock synchronized, status information of GNSS synchronization completion is sent to the command computer.
10. The intelligent efficient excitation method based on a remote explosion system according to claim 8, wherein in step 3, after the command computer receives Ready signals of the plurality of groups of decoder units in step 2, distances D from three excitation points excited before are calculated according to the received plurality of groups of wellhead GNSS coordinates, excitation intervals T, preferably excitation points with minimum T, are calculated according to a time-distance T-D rule pre-designed by the command computer, and when waiting for an excitation moment, an initiation signal is sent to the preferred decoder unit, and at the same time, the initiation signal GNSS time is recorded.
11. The intelligent efficient excitation method based on a remote explosion system according to claim 8, wherein in step 4, the excitation control box performs GNSS timing to control the decoder unit to generate pulse signals in a whole millisecond to trigger the explosive source, and simultaneously record the explosive excitation time to obtain the actual detonation GNSS time, and transmit the actual detonation GNSS time to the encoder unit through the decoder unit.
12. The intelligent efficient excitation method based on the remote explosion system according to claim 8, further comprising, after the step 4, the step 5, the command computer records the detonation signal GNSS time and the actual detonation GNSS time respectively, and determines that the excitation is valid when the time difference between the two is not greater than 100 μs.
13. The intelligent efficient excitation method based on a remote explosion system according to claim 12, wherein in step 5, the command computer records the detonation signal GNSS time and the actual detonation GNSS time respectively, completes the intelligent efficient excitation process, updates the distance D and the excitation interval T between the other ready remote control detonation device and the three excitation points before excitation, and performs the loop of step 2-step 5 to excite the next excitation point until all the points are excited.
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