Seismic exploration node type detonating device and operation method

Abstract

The invention provides a seismic exploration node type detonating device and an operation method.The seismic exploration node type detonating device comprises a detonating operation terminal and a plurality of detonating execution terminals, and each detonating execution terminal comprises a master control module, a satellite positioning time service module, a wireless communication module and an electronic detonator control module; the satellite positioning time service module receives signals of a global navigation satellite system and carries out positioning and time service on the positions of the detonation execution terminals, and the detonation operation terminal distributes detonation time to the detonation execution terminals. The detonation operation terminal and the detonation execution terminal are in wireless communication through the wireless communication module to achieve information interaction, and the master control module is connected to the wireless communication module and controls detonation of a detonator through the electronic detonator control module according to information transmitted by the wireless communication module. According to the seismic exploration node type detonating device and the operation method, seismic exploration well cannon excitation can be continuously and independently excited without wireless communication and information exchange.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of seismic exploration technology, in particular to a seismic exploration node type detonation device and operation method. BACKGROUND

[0002] Electronic detonator, also known as digital electronic detonator, is a combination of traditional detonator technology, modern electronic technology and information technology, which uses electronic control module to replace the delay drug and ignition device in traditional detonator. The working principle is that the initiator charges the capacitor inside the electronic control module, and the detonation command is sent to the capacitor inside the electronic control module, and then the electronic control module discharges the bridge wire, the bridge wire heats up to ignite the powder, and the powder explodes the basic detonator, thereby realizing the detonation of the electronic detonator.

[0003] Current well shooting equipment mainly has two working modes. One is the encoder mode, the encoder is the master control end, and the decoder is the controlled end. The decoder is connected to the electronic detonator through the extension line. When detonating, the encoder sends the detonation command or detonation time to the decoder through wireless communication. The decoder controls the detonation of the electronic detonator after receiving the information. After detonating one well, the decoder changes to the next well point for continuous operation. One decoder is responsible for the detonation of the well in a region. There must be good wireless communication conditions between the encoder and the decoder. The second is the independent shooting mode. Different independent detonation controllers have independent detonation time slots, and their working times do not overlap. Each detonation controller can only detonate the detonator in its own detonation time slot. After detonation, the independent detonation controller records the detonation time. The independent detonation controller is connected to the electronic detonator through the extension line. After detonating one well, it changes to the next well point for continuous operation. One independent detonation controller is responsible for the detonation of the well in a region. The independent detonation controller does not need to communicate with other controllers and works independently.

[0004] When detonating, the electronic detonator foot line is connected to the detonation controller through the extension line. The electronic control module of the detonator obtains power from the detonation controller. After receiving the command and identifying the identity, the detonation controller charges the energy storage component. The energy of the energy storage component is released to the ignition component through the switch component to complete the detonation of the electronic detonator.

[0005] The current electronic detonator wireless detonator device is mainly used in the field of blasting. When detonating, it does not record the accurate detonation time, or the detonation control end and the execution end that directly controls the detonation of the electronic detonator are not required to be accurately clock synchronized in time sequence.

[0006] In the Chinese patent application with application number: CN202210907816.7, a wireless detonation system and method are disclosed. The wireless detonation system includes a detonator, a wireless detonation controller, and a plurality of digital electronic detonators. Each digital electronic detonator is connected to the wireless detonation controller. The detonator sends a wireless signal to the wireless detonation controller, which controls the plurality of digital electronic detonators to detonate in a specified order based on the received signal. The invention achieves precise positioning of the digital electronic detonators through a positioning module. The control and power supply parts of each digital electronic detonator are set on the wireless detonation controller, which not only reduces the size of the digital electronic detonator and improves safety performance, but also allows convenient and accurate control of the detonation of each digital electronic detonator through the wireless detonation controller. This achieves the goal of multiple digital electronic detonators sharing one wireless detonation controller, making operation more convenient and reducing costs.

[0007] In the Chinese patent application with application number: 202310990679.2, a wireless detonation system and detonation method for electronic detonators are disclosed. The invention provides a wireless detonation system for electronic detonators, which includes a detonator and a plurality of electronic detonators. The detonator and the plurality of electronic detonators communicate with each other through wireless signals, including control signals sent by the detonator to the plurality of electronic detonators and feedback signals sent by the plurality of electronic detonators to the detonator. The detonator and the plurality of electronic detonators communicate with each other through wireless signals, including control signals sent by the detonator to the plurality of electronic detonators and feedback signals sent by the plurality of electronic detonators to the detonator. The electronic detonator includes a transceiver antenna, a power supply battery, an ignition element, a signal amplification unit, a signal receiving and feedback unit, a signal processing unit, a signal conversion unit, a data storage unit, an ignition control and driving unit, and a voltage conversion unit. The transceiver antenna is used to receive the control signal and send the feedback signal. The power supply battery is used to power the electronic detonator. The ignition element is used to ignite to detonate the electronic detonator. The transceiver antenna is connected to the signal amplification unit in communication. The voltage conversion unit is electrically connected to the power supply battery. The ignition control and driving unit is used to control and drive the ignition element to ignite. The signal receiving and feedback unit, the signal conversion unit, and the data storage unit are all connected to the signal processing unit in communication.

[0008] In the Chinese patent application No. CN202210717820.7, a digital electronic detonator initiation controller and its cascade synchronization method and system are involved. A first power output module outputs power module voltage after voltage reduction; a second power output module outputs power module voltage after voltage reduction; a total control module controls the second power output module to supply power to a GNSS module, controls a boost module to provide bus voltage to a bus driving module, controls the bus driving module to supply power to a detonator bus, controls a bus signal acquisition module to acquire bus signals and interact with the GNSS module to obtain satellite positioning and current time; a TIMEPULSE second pulse signal output by the GNSS module is connected to an FIQ interrupt line of a processor of the total control module; the boost module boosts the power module to the bus communication voltage and bus charging voltage required for detonator networking; the bus driving module outputs the voltage output by the boost module to the detonator networking bus and realizes the downlink communication of detonator networking; the bus signal acquisition module acquires the current signal on the detonator networking bus to realize the uplink communication of detonator networking.

[0009] The above prior art is quite different from the present application, and cannot solve the technical problems we want to solve. Therefore, we have invented a new seismic exploration node type initiation device and operation method. SUMMARY

[0010] The purpose of the present application is to provide a node type initiation device and operation method for efficient well shooting operation in the field of seismic exploration.

[0011] The purpose of the present application can be achieved by the following technical measures: a seismic exploration node type initiation device, which comprises an initiation operation terminal and a plurality of initiation execution terminals, the initiation execution terminal comprises a total control module, a satellite positioning and timing module, a wireless communication module and an electronic detonator control module, the satellite positioning and timing module receives information of a global navigation satellite system, and performs positioning and timing of the position of the initiation execution terminal to realize accurate time synchronization with the initiation operation terminal, the initiation operation terminal distributes initiation time to a plurality of the initiation execution terminals, the initiation operation terminal and the initiation execution terminal realize information interaction through wireless communication between the wireless communication module, the total control module is connected to the wireless communication module, according to the information transmitted by the wireless communication module, the electronic detonator control module is used to control the detonator to initiate at the set initiation time.

[0012] The purpose of the present application also needs the following technical measures to be realized:

[0013] The initiation operation terminal has satellite positioning and timing function, can display the position of the operator, indicate the distance from the initiation execution terminal, facilitate the operator to find the initiation execution terminal, and provide accurate system time for the initiation operation terminal.

[0014] The detonation operation terminal has wireless communication function, receives well gun shooting task and detonation cipher of electronic detonator, and the shooting task contains well point stake number to be detonated, corresponding position coordinate and connected detonator shell code or chip code; the detonation operation terminal sets first detonation time t0 and detonation interval time Δt, and detonation time of subsequent n times is t0+n*Δt according to the detonation operation terminal, and the detonation operation terminal sends detonation cipher and detonation time of the electronic detonator to the corresponding detonation execution terminal through wireless communication function according to position information of the shooting task.

[0015] The detonation execution terminal further comprises a storage module connected to the general control module, the general control module receives the detonation cipher and detonation time of the electronic detonator through the wireless communication module, and stores the detonation cipher and detonation time in the storage module; the general control module cyclically compares system time with the detonation time of the electronic detonator, checks whether the time difference between the system time and the detonation time is less than a certain fixed value; when the time difference is greater than the fixed value or exceeds the detonation time, the system does not enter the detonation process; when the time difference is less than the fixed value, the system enters the detonation process; the general control module sends instructions to the electronic detonator control module to detect and record the electronic detonator connected to the detonation execution terminal and compare the cipher; if the detonation requirement is met, the general control module sends instructions to the electronic detonator control module to pre-charge the detonator, network time grant and high-voltage charging, and the electronic detonator enters the detonation standby state; after completing the high-voltage charging, the general control module continues to compare the system time with the detonation time, and when the detonation time comes one second before, that is, when the PPS second pulse comes, the general control module starts timing and sends detonation permission to the electronic detonator control module after delaying a certain fixed time; the electronic detonator control module receives the detonation permission and sends a detonation command, and returns a detonation completion signal to the general control module after delaying a fixed time after the detonation command is sent; the general control module records the time when the detonation completion signal is generated as the actual detonation time of the detonator; after the detonation process is completed, the general control module stores the actual detonation time and detonation result data into the storage module, and transmits these data to the detonation operation terminal through the wireless communication module.

[0016] The detonation execution terminal further comprises a vibration wave detection module connected to the general control module, which converts seismic vibration into electrical signals, starts to collect ground vibration signal data at the detonation moment of the electronic detonator, analyzes well gun shooting energy according to the ground vibration signal data, judges whether the well explosive is normally detonated through the energy of the well gun, calculates the time required for the vibration caused by the explosion of the well explosive to reach the wellhead, that is, the wellhead time, and transmits the data to the general control module, and the general control module stores the data in the storage module and transmits the data to the detonation operation terminal through the wireless communication module.

[0017] The detonation execution terminal further comprises a high-stability clock module connected to the general control module, which provides a system clock for the system operation of the detonation execution terminal, and the general control module calibrates the high-stability clock module and performs system time synchronization by receiving the satellite time service PPS second pulse transmitted by the satellite time service module; in the case that the satellite time service signal is lost for a short time, the high-stability clock module provides an operating clock and system time.

[0018] The detonation execution terminal further comprises a battery and power module, which provides operating power for each module in the detonation execution terminal.

[0019] The operation method of the seismic exploration node-type detonation device comprises the following steps:

[0020] Step 1: turn on the detonation execution terminal to perform satellite time service synchronization, realize time synchronization and obtain position coordinates, connect the detonation execution terminal with the electronic detonator covering wire and place the detonation execution terminal beside the well mouth;

[0021] Step 2: turn on the detonation operation terminal, load the well shooting operation task and the detonation secret code of the electronic detonator into the detonation operation terminal, assign a detonation time to a detonation execution terminal, and navigate to the vicinity of the first well point according to the position information of the operation task through the detonation operation terminal;

[0022] Step 3: the detonation operation terminal searches for the nearby detonation execution terminal through wireless communication and establishes wireless connection with the detonation execution terminal;

[0023] Step 4: the detonation operation terminal selects a detonation execution terminal, obtains the position of the detonation execution terminal, fits the current well point stake number according to the position coordinates, reads the electronic detonator shell code or chip code connected to the detonation execution terminal, sends the detonation time, detonation secret code information and stake number to the detonation execution terminal for storage, sends the detonation standby instruction to the detonation execution terminal, and the detonation execution terminal enters the detonation waiting stage; the detonation operation terminal records the actual position coordinates, stake number, obtained detonator shell code or chip code and set detonation time of the detonation execution terminal;

[0024] Step 5: repeat steps 3-4 to complete the preparation work of all wells;

[0025] Step 6: the detonation execution terminal sends a detonation instruction to automatically detonate the electronic detonator, and completes the shooting of the well;

[0026] Step 7: repeat step 6 until all wells are shot.

[0027] The technical scheme of the present application also needs the following technical measures to be realized:

[0028] In step 2, the task contains the shot point pile number to be initiated, the corresponding position coordinates, and the detonator shell code or chip code; the initiation operation terminal sets the first initiation time t0 and the initiation interval time Δt, and calculates the initiation time of the subsequent n times as t0+n*Δt according to the initiation operation terminal.

[0029] In step 3, the initiation operation terminal searches for the initiation execution terminal through wireless communication and wirelessly connects with the initiation execution terminal, confirms the working state of the initiation execution terminal and the normal satellite time synchronization, and simultaneously obtains the position data of the initiation execution terminal; the initiation operation terminal sends an instruction to the initiation execution terminal to record the connected electronic detonator, checks the state of the electronic detonator, and ensures that the initiation execution terminal is normally connected with the electronic detonator; the initiation execution terminal sends the obtained electronic detonator information to the initiation operation terminal through the wireless communication module for display.

[0030] In step 4, the initiation operation terminal obtains the corresponding initiation cipher text of the detonator connected with the initiation execution terminal from the initiation cipher text according to the shell code or chip code of the electronic detonator, binds an initiation time with the shot point pile number and the detonator information, sends the data to the initiation execution terminal through wireless communication after attaching the initiation cipher text, and stores the data in the storage module.

[0031] In step 6, according to the set initiation time, safety warning is done in the area of the shot point to be excited; the initiation execution terminal compares the time information of itself with the set initiation time information; when the initiation time is coming, the initiation execution terminal performs cipher text comparison, networking and charging, and enters the initiation ready state; at the moment when the initiation time comes, the initiation execution terminal sends an initiation instruction to automatically detonate the electronic detonator, and completes the excitation of the shot.

[0032] Step 6 further includes that after the initiation is completed, the initiation execution terminal saves the recorded actual initiation time and the initiation result data of the electronic detonator in the storage module; the initiation execution terminal sends the initiation time, the initiation result data and the corresponding pile number information data to the initiation operation terminal, and the initiation operation terminal uploads the initiation result data to the civilian explosive service platform.

[0033] Step 6 further includes that the vibration detection module starts to collect the ground vibration signal data at the moment when the electronic detonator is initiated, analyzes the well shot excitation energy according to the ground vibration signal data, judges whether the well explosive is normally initiated according to the energy of the well shot, calculates the time required for the vibration caused by the explosion of the well explosive to be transmitted to the wellhead, i.e. the wellhead time, and transmits the data to the total control module, and the total control module stores the data in the storage module and transmits the data to the initiation operation terminal through the wireless communication module.

[0034] The operation method of the seismic exploration node type detonation device further comprises, after step 7, step 8, after the shooting well is triggered, the detonation operation terminal recovers the information of the stake number, position coordinates, detonator shell code or chip code, detonation actual time, detonation vibration data of the detonation execution terminal through wireless mode.

[0035] The internal crystal oscillator of the seismic exploration node type detonation device has high stability, and the satellite positioning time module, so that the internal clock reference can be very accurate in a short time without satellite time information, so that the system has an accurate time reference, and the accurate time of detonator detonation can be recorded when the detonator is detonated; meanwhile, the device receives satellite positioning time data and obtains the specific position coordinates of the detonator. The operation method in the application realizes non-overlapping detonation on time by presetting the detonation time slot of the detonation device in advance.

[0036] The application solves the cumbersome steps of connecting the detonator wire to the detonation controller through the extension line in the current well shooting, solves the idle situation of time slot not being used due to the terrain and other reasons when independent shooting operation is performed, solves the problem that continuous operation can be realized only by the central control terminal for operation scheduling, and realizes uninterrupted independent shooting without wireless communication and information exchange in the seismic exploration well shooting; meanwhile, the weight of the detonation operator is reduced, and the labor intensity is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 The structure diagram of the detonation execution terminal in the seismic exploration node type detonation device of the application is shown.

[0038] Figure 2 The schematic diagram of the time slot time allocation method based on the shooting point in a specific embodiment of the application is shown. DETAILED DESCRIPTION

[0039] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the application. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the application pertains.

[0040] It should be noted that the terms used herein are only for the purpose of describing the specific embodiments and are not intended to limit the exemplary embodiments according to the application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form, and in addition, it should be understood that when the terms "comprise" and / or "include" are used in the specification, they mean the presence of a feature, step, operation and / or combination thereof.

[0041] The seismic exploration node type detonation device is composed of a detonation operation terminal and a detonation execution terminal.

[0042] The detonation operation terminal has wireless communication function and satellite positioning and timing function, can access public network, can communicate with the detonation execution terminal to realize information interaction, can download or load the detonation ciphertext of the electronic detonator, can send instructions to the detonation execution terminal to make it execute detonator detection, networking, charging and detonation, send detonation ciphertext and detonation time to the detonation execution terminal, etc., can receive and display the working state of the detonation execution terminal and the state of the electronic detonator, receive detonation result data and upload to the civilian explosive management platform, and the satellite positioning and timing function of the detonation operation terminal is used to display the position of the operator, indicate the distance from the detonation execution terminal, and facilitate the operator to find the detonation execution terminal, and provide accurate system time for the operation terminal.

[0043] The detonation execution terminal is composed of a general control module, a satellite positioning and timing module, a high-stability clock module, a wireless communication module, an electronic detonator control module, a storage module, a power module, a vibration wave detection module, etc.

[0044] The satellite positioning and timing module is used to receive the information of the global navigation satellite system to realize the positioning and timing of the position of the detonation terminal, and the internal clock module, i.e. the high-stability clock module, is tamed by the PPS second pulse of satellite timing to realize the accurate synchronization of the time of the detonation terminal to the global navigation satellite system time. The time of the terminal is synchronized with the GPS time, and the time of the detonation operation terminal and the detonation execution terminal is synchronized to the GPS time, which means that the time of the operation terminal and the execution terminal is the same.

[0045] The high-stability clock module provides system clock for system work, adjusts the system clock and time by satellite timing PPS second pulse to realize the accurate synchronization of system working time; in the case of short-time loss of satellite timing signal, the system clock and time are continued to be provided by the self-clock.

[0046] The wireless communication module is used to communicate with the detonation operation terminal, receive instructions and send information, receive detonation parameters, send running state data, detonator detonation result data, etc.

[0047] The electronic detonator control module is used to execute the detection input, ciphertext comparison, networking charging, detonation initiation, etc. of the electronic detonator to realize the detonation of the electronic detonator, and generate detonation result data after detonation.

[0048] The storage module is used to store the received well number, detonator detonation ciphertext, detonation preset time, etc., store the position coordinates of the detonation terminal at the time of detonation, the detonator shell code and chip code, the corresponding well number and the generated detonation data, etc. after detonation, and facilitate subsequent forwarding to the detonation operation terminal.

[0049] The battery and power module provide various types of working power required by each functional module of the detonation terminal, guarantee the power supply of the detonation terminal and the power supply required by the electronic detonator.

[0050] The vibration detection module is used for converting seismic vibration into electrical signal, collecting ground vibration signal data at the moment of detonation of the electronic detonator, analyzing the energy of the well gun, judging whether the well explosive is normally detonated according to the energy of the well gun, and calculating the time required for the vibration caused by the explosion of the well explosive to reach the wellhead, i.e. the wellhead time.

[0051] The general control module is used for controlling and coordinating the operation of each module, monitoring the operation and ensuring the normal work of the system.

[0052] After the detonation terminal is started, the system performs self-checking and starts the wireless communication function. After the self-checking is completed, the satellite positioning and timing module starts searching for satellites and receiving satellite positioning and timing information, and sends the received data to the general control module. The general control module realizes the acquisition of positioning and timing data. Thereafter, the general control module always calibrates the high-stability clock module of the system and the system time according to the PPS second pulse signal of the satellite positioning and timing module, realizes the accurate synchronization of the time of the detonation terminal system and the time of the satellite positioning and timing system. When there is no satellite positioning and timing system timing signal for a short time, the system relies on its own high-stability clock to maintain the system time. At this point, the detonation terminal is ready.

[0053] After the detonation execution terminal is ready, the general control module obtains the detonation cipher and detonation time (the time is an integer second) of the electronic detonator from the outside through the wireless communication module, and stores the detonation cipher and detonation time in the storage module. The general control module cyclically compares the system time with the detonation time of the electronic detonator, checks whether the time difference between the system time and the detonation time is less than a certain fixed value. When the time difference is greater than the fixed value or exceeds the detonation time, the system does not enter the detonation process; when the time difference is less than the fixed value, the system enters the detonation process. The general control module of the detonation terminal sends an instruction to the electronic detonator control module to detect and record the electronic detonator connected to the detonation terminal and compare the cipher. If the detonation requirement is met, the general control module sends an instruction to the electronic detonator control module to perform detonator pre-charging, network time setting and high-voltage charging, and the electronic detonator enters the detonation standby state. After completing the high-voltage charging, the general control module continues to compare the system time with the detonation time, and before the detonation time (the detonation time uses an integer second) arrives, that is, when the PPS second pulse arrives, the general control module starts timing and delays a certain fixed time to send a detonation permission to the electronic detonator control module; after receiving the detonation permission, the electronic detonator control module sends a detonation command, and after the detonation command is sent, a fixed time is delayed to return a detonation completion signal to the general control module; the general control module records the time when the detonation completion signal is generated as the actual detonation time of the detonator. After the detonation process is completed, the general control module stores the actual detonation time, detonation result data and the like into the storage module, and transmits these data to the detonation operation terminal through the wireless communication module.

[0054] The following are several specific embodiments of the application

[0055] Embodiment 1

[0056] In a specific embodiment 1 of the application, Figure 1 as shown in the figure, Figure 1 is a structural diagram of the seismic exploration node type detonation device of the application. The seismic exploration node type detonation device comprises a high-stability clock module 1, a satellite positioning time setting module 2, a wireless communication module 3, a storage module 4, a general control module 5, an electronic detonator control module 6, a vibration wave detection module 7, a power supply module 8 and a battery 9.

[0057] The satellite positioning time setting module 2 receives the information of the global navigation satellite system, performs the positioning and time setting of the position of the detonation execution terminal, so as to realize the accurate time synchronization with the global satellite navigation system time.

[0058] The wireless communication module 3 is connected to the general control module 5, and the detonation operation terminal and the detonation execution terminal realize the information interaction through the wireless communication of the wireless communication module 5.

[0059] The storage module 4 is connected to the general control module 5, the general control module 5 receives the detonation cipher and detonation time data of the electronic detonator through the wireless communication module 3, and stores the detonation cipher and detonation time in the storage module 4; the general control module 5 cyclically compares the system time with the detonation time of the electronic detonator, checks whether the time difference between the system time and the detonation time is less than a certain fixed value; when the time difference is greater than the fixed value or exceeds the detonation time, the system does not enter the detonation process; when the time difference is less than the fixed value, the system enters the detonation process; the general control module 5 sends instructions to the electronic detonator control module 6 to detect and record the electronic detonator connected to the detonation execution terminal and compare the cipher; if it meets the detonation requirements, the general control module 5 sends instructions to the electronic detonator control module 6 to charge the detonator, network time and high voltage charging, and the electronic detonator enters the detonation standby state; after completing the high voltage charging, the general control module 5 continues to compare the system time with the detonation time, and sends the detonation permission to the electronic detonator control module 6 after a certain fixed time when the PPS second pulse comes one second before the detonation time; the electronic detonator control module 6 receives the detonation permission and sends the detonation command, and returns a detonation completion signal to the general control module after a fixed time after the detonation command is sent; the general control module 5 records the time when the detonation completion signal is generated as the actual detonation time of the detonator; after the detonation process is completed, the general control module stores the actual detonation time and detonation result data into the storage module 4, and transmits these data to the detonation operation terminal through the wireless communication module 3.

[0060] The vibration detection module 2 is connected to the general control module 5, converts the earthquake vibration into an electric signal, starts to collect the ground vibration signal data at the detonation moment of the electronic detonator, analyzes the well gun excitation energy, judges whether the well explosive is normally detonated through the energy of the well gun, calculates the time required for the vibration caused by the explosion of the well explosive to reach the wellhead, i.e. the wellhead time, and transmits the data to the general control module 5, and the general control module 5 stores the data into the storage module 4 and transmits the data to the detonation operation terminal through the wireless communication module 3.

[0061] The high-stability clock module 1 is connected to the general control module 5, and provides a system clock for the system operation of the detonation execution terminal. The high-stability clock module 1 adjusts the system clock and time by receiving the satellite time signal PPS second pulse transmitted by the satellite time module 2, and provides a working clock and system time in the case of short loss of satellite time signal.

[0062] The battery 9 and the power module 8 provide working power for each module in the detonation execution terminal.

[0063] Example 2

[0064] In a specific embodiment 2 of the application, the operation flow of the seismic exploration node initiation device of the application is as follows:

[0065] The initiation execution terminal is turned on, and waits for the satellite time synchronization of the initiation execution terminal to be completed, so that the initiation execution terminal realizes time synchronization and obtains position coordinates. The initiation execution terminal is connected to the electronic detonator covering wire at the position of the well mouth where the explosive has been placed (the explosive and detonator have been placed in the well), and is placed beside the well mouth.

[0066] After the initiation operation terminal is turned on, the well shooting operation task and the initiation secret code of the electronic detonator are loaded, the operation task includes the well point stake number to be initiated and the corresponding position coordinates; the first initiation time t0 and the initiation interval time Δt are set, and the initiation operation terminal calculates the initiation time of the subsequent n times as t0+n*Δt, so as to ensure the uniqueness of the initiation time; then the initiation operation terminal assigns an initiation time to an initiation execution terminal. According to the position information of the operation task, the initiation operation terminal is navigated to the vicinity of the first well point.

[0067] The initiation operation terminal searches for the initiation execution terminal by wireless communication and is wirelessly connected thereto, confirms the working state of the initiation execution terminal and the normality of satellite time synchronization, and simultaneously obtains the position data of the initiation execution terminal. The initiation operation terminal issues an instruction to record the connected electronic detonator through the initiation execution terminal, checks the state of the electronic detonator, and ensures the normal connection of the initiation execution terminal and the electronic detonator. The initiation execution terminal sends the obtained electronic detonator information to the initiation operation terminal for display through the wireless communication module.

[0068] The initiation operation terminal automatically fits the current well point stake number according to the position coordinates of the initiation execution terminal. The initiation operation terminal obtains the initiation secret code corresponding to the detonator connected to the execution terminal from the initiation secret code file according to the shell code or chip code of the electronic detonator, binds the first initiation time with the well point stake number and the detonator information, and sends these data to the initiation execution terminal through wireless communication after attaching the initiation secret code and existing in the storage module. The initiation operation terminal sends the initiation standby instruction to the initiation execution terminal, and the initiation execution terminal enters the initiation waiting stage.

[0069] According to the above steps, the initiation execution terminal is arranged at the second well point, and the corresponding initiation time and initiation secret code are sent. In this way, the preparation work of other wells is completed. After these preparation works are completed, the initiation execution terminals at different well points have unique initiation time slots and initiation secret codes, which ensure that different well points meet the needs of seismic exploration in the initiation timing, and the initiation of adjacent well points in time does not cause mutual interference in energy.

[0070] According to the set detonation time, the well point area to be excited is well guarded. The detonation execution terminal compares the time information of itself with the set detonation time information; when the detonation time is coming, the detonation execution terminal performs ciphertext comparison, networking and charging, enters the detonation ready state, and sends a detonation instruction to automatically detonate the electronic detonator at the moment when the detonation time comes, to complete the excitation of the well. After the detonation is completed, the detonation execution terminal saves the recorded actual detonation time and the detonation result data of the electronic detonator in the storage module. Subsequently, the detonation operation terminal is connected with the detonation operation execution terminal through wireless mode, the detonation execution terminal sends the detonation time, the detonation result data and the corresponding stake number information to the detonation operation terminal, and the detonation operation terminal uploads the detonation result data to the civilian explosive service platform.

[0071] The detonation execution terminal corresponding to the well with the second detonation time sends a detonation instruction to detonate the electronic detonator at the time. Similarly, the excitation of the nth well is completed at the nth detonation time.

[0072] Embodiment 3

[0073] In a specific embodiment 3 of the application, Figure 2 For a specific embodiment of the operation method of the application, a unique fixed detonation time and its corresponding maintenance time are allocated to the detonation execution terminal at each well point, that is, only the corresponding detonation execution terminal can use the time period; when the detonation time comes, the detonation execution terminal detonates the connected electronic detonator, and other detonation execution terminals do not have the opportunity to detonate within the corresponding maintenance time.

[0074] The seismic exploration node type detonation device has a satellite positioning time service and a high-stability clock, and the time precision is high; has a wireless communication function, such as lora communication; can store ciphertext data and detonation time information. The detonation operation terminal has a time slot division function, can allocate a detonation time slot to each detonation execution terminal, and sends the detonation time to the detonation execution terminal in advance. The detonation execution terminal can save the electronic detonator ciphertext data, has a timing detonation function, and can independently complete the electronic detonator recording, networking, charging and detonation at the set time point. The device realizes the division of the detonation time slot of each well, and the detonation of each well does not appear the phenomenon of multiple wells, and there is no waste of operation time. The operation method can preset the detonation time of each well in advance, and the detonation time of the detonation execution terminal can be known without communication with the detonation execution terminal, which reduces the requirement for the wireless communication condition of the operation environment. One detonation execution terminal is responsible for the excitation of one well.

[0075] The detonation execution terminal of the present application is directly placed at the edge of the well mouth to connect the detonator covering wire, and the long electronic detonator extension covering wire is not needed during detonation, thus avoiding the problem of difficult detonator covering wire layout at special difficult surface shooting points. During well shooting, all are independently completed without communication, and there is no problem of not being able to arrive at the point on time, and there is no waste of operation time slot; the operation personnel do not need to carry heavy detonation control equipment. One operation personnel can simultaneously understand the operation condition or set parameters of the detonation terminal in a region at one position through wireless mode.

[0076] The present application can plan and preset the shooting time of each well, and the shooting time of each well point can be known in advance. During operation, the well shooting sequence can be sequentially shot according to the stake number or set sequence, the detonation time interval between adjacent two wells can be the shortest, the shooting of all well points in a region can be quickly completed; a certain shooting sequence can be set according to the terrain, which is convenient for the operation personnel to safely guard and optimally and quickly arrive at the well position; uninterrupted and rapid operation in bad weather and unpopulated areas can be realized. The corresponding detonation execution terminal can be selected according to the detonation time, and the interruption of the detonation process is realized.

[0077] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0078] In addition to the technical features described in the specification, they are known to those skilled in the art.

Claims

1. A seismic exploration nodal initiator, characterized by, The seismic exploration node type detonation device comprises a detonation operation terminal and a plurality of detonation execution terminals, the detonation execution terminal comprises a general control module, a satellite positioning and timing module, a wireless communication module and an electronic detonator control module, the satellite positioning and timing module receives information of a global navigation satellite system, carries out positioning and timing of a position of the detonation execution terminal, so as to realize accurate time synchronization with the detonation operation terminal, the detonation operation terminal distributes a detonation time to a plurality of detonation execution terminals, wireless communication between the detonation operation terminal and the detonation execution terminal is realized through the wireless communication module to realize information interaction, the general control module is connected to the wireless communication module, according to information transmitted by the wireless communication module, the electronic detonator control module is used to control a detonator to detonate at a set detonation time.

2. The seismic exploration nodal initiator of claim 1, wherein, The detonation operation terminal has a satellite positioning and timing function, can display a position of an operator, indicates a distance from the detonation execution terminal, and facilitates the operator to find the detonation execution terminal, and provides accurate system time for the detonation operation terminal.

3. The seismic exploration nodal initiator of claim 1, wherein, The detonation operation terminal has a wireless communication function, receives a well shooting operation task and a detonation secret code of an electronic detonator, the operation task comprises a well point stake number to be detonated, corresponding position coordinates and a connected detonator shell code or chip code; the detonation operation terminal sets a first detonation time t0 and a detonation interval time Δt, according to which the detonation operation terminal calculates a detonation time of a subsequent n time as t0+n*Δt, according to position information of the operation task, the detonation operation terminal sends the detonation secret code and the detonation time of the electronic detonator to the corresponding detonation execution terminal through the wireless communication function.

4. The seismic exploration nodal initiator of claim 3, wherein, The detonation execution terminal further comprises a storage module connected to the general control module, the general control module receives the detonation cipher and detonation time of the electronic detonator through the wireless communication module, and stores the detonation cipher and detonation time in the storage module; the general control module cyclically compares the system time with the detonation time of the electronic detonator, checks whether the time difference between the system time and the detonation time is less than a certain fixed value; when the time difference is greater than the fixed value or exceeds the detonation time, the system does not enter the detonation process; when the time difference is less than the fixed value, the system enters the detonation process; the general control module sends an instruction to the electronic detonator control module to detect and record the electronic detonator connected to the detonation execution terminal and compare the cipher; if the detonation requirement is met, the general control module sends an instruction to the electronic detonator control module to pre-charge the detonator, network time distribution and high-voltage charging, and the electronic detonator enters the detonation standby state; after the high-voltage charging is completed, the general control module continues to compare the system time with the detonation time, and when the detonation time comes one second before the PPS second pulse comes, the general control module starts timing and sends a detonation permission to the electronic detonator control module after a certain fixed time; after the electronic detonator control module receives the detonation permission, a detonation command is sent, and after the detonation command is sent, a detonation completion signal is returned to the general control module after a fixed time; the general control module records the time when the detonation completion signal is generated as the actual detonation time of the detonator; after the detonation process is completed, the general control module stores the actual detonation time and detonation result data into the storage module, and transmits the data to the detonation operation terminal through the wireless communication module.

5. The seismic exploration nodal initiator of claim 4, wherein, The detonation execution terminal further comprises a vibration wave detection module connected to the general control module, which converts seismic vibration into an electrical signal and starts collecting ground vibration signal data at the detonation moment of the electronic detonator. The ground vibration signal data can be used to analyze the well shooting energy, and the energy of the well shooting can be used to determine whether the well explosive is normally detonated. The time required for the vibration caused by the explosion of the well explosive to reach the wellhead is calculated, that is, the wellhead time, and the data is transmitted to the general control module, and the data is stored in the storage module by the general control module, and the data is transmitted to the detonation operation terminal through the wireless communication module.

6. The seismic exploration nodal initiator of claim 1, wherein, The detonation execution terminal further comprises a high-stability clock module connected to the general control module, which provides a system clock for the system operation of the detonation execution terminal. The general control module calibrates the high-stability clock module and performs system time synchronization through the satellite time distribution PPS second pulse transmitted by the satellite time distribution module. In the case of short-time loss of satellite time distribution signal, the high-stability clock module continuously provides working clock and system time.

7. The seismic exploration nodal initiator of claim 1, wherein, The detonation execution terminal further comprises a battery and power module, which provides working power for each module in the detonation execution terminal.

8. Method for operating a seismic exploration nodal firing device, characterized in that, The operation method of the seismic exploration node-type detonation device adopts the seismic exploration node-type detonation device of any one of claims 1-8, comprising: Step 1, open the detonation terminal to synchronize with satellite time and get the position coordinates; and connect the detonation terminal with the electronic detonator and place it beside the well mouth; Step 2, open the detonation terminal, load the well shooting task and the detonation code of the electronic detonator, and navigate to the first well point according to the position information of the task; Step 3, the detonation terminal searches for the nearby detonation terminal and connects with it through wireless communication; Step 4, the detonation terminal selects a detonation terminal, gets its position, and fits the current well point stake number according to the position coordinates; reads the electronic detonator shell code or chip code connected to the detonation terminal; then the detonation terminal sends a detonation time, detonation code information, and stake number to the detonation terminal for storage; finally, the detonation terminal sends a detonation standby command to the detonation terminal, and the detonation terminal enters the detonation waiting stage; the detonation terminal records the actual position coordinates, stake number, obtained detonator shell code or chip code, and set detonation time of the detonation terminal; Step 5, repeat steps 3-4 to complete the preparation work of all wells; Step 6, the detonation terminal sends a detonation command to automatically detonate the electronic detonator, completing the well shooting; Step 7, repeat step 6 until all wells are shot.

9. The method of operating a seismic node initiation device of claim 8, wherein, In step 2, the task contains the well point stake number to be detonated, its corresponding position coordinates, and the detonator shell code or chip code; the detonation terminal sets the first detonation time t0 and the detonation interval time Δt, and calculates the nth detonation time as t0+n*Δt according to the detonation terminal.

10. The method of claim 8, wherein: In step 3, the detonation terminal searches for the detonation terminal through wireless communication and connects with it, confirms the working state of the detonation terminal, and gets the position data of the detonation terminal; the detonation terminal sends a command to the detonation terminal to record and check the state of the connected electronic detonator, ensuring that the detonation terminal is connected to the electronic detonator normally; the detonation terminal sends the obtained electronic detonator information to the detonation terminal through the wireless communication module for display.

11. The method of operating a seismic node initiation device of claim 8, wherein, In step 4, the detonation terminal gets the detonation code corresponding to the detonator connected to the detonation terminal from the detonation code according to the shell code or chip code of the electronic detonator, and binds a detonation time with the well point stake number and detonator information, and sends these data to the detonation terminal through wireless communication and stores them in the storage module.

12. The method of claim 8, wherein: In step 6, according to the set detonation time, the area of the well point to be shot is secured; the detonation terminal compares its time information with the set detonation time information; when the detonation time is approaching, the detonation terminal performs code comparison, networking, and charging, and enters the detonation ready state; at the moment when the detonation time comes, the detonation terminal sends a detonation command to automatically detonate the electronic detonator, completing the well shooting.

13. The method of operating a seismic node initiation device of claim 8, wherein, Step 6 further comprises, after the detonation is completed, the detonation execution terminal saves the recorded actual detonation time and the detonation result data of the electronic detonator in the storage module; The detonation execution terminal sends the detonation time, the detonation result data and the corresponding pile number information data to the detonation operation terminal, and the detonation operation terminal uploads the detonation result data to the civilian explosive service platform.

14. The method of claim 8, wherein: Step 6 further comprises, the vibration detection module starts to collect the ground vibration signal data at the moment of the detonation of the electronic detonator, the well gun excitation energy can be analyzed according to the ground vibration signal data, whether the well explosive is normally detonated is judged through the energy of the well gun, the time required for the vibration caused by the explosion of the well explosive to be transmitted to the ground wellhead, i.e. the wellhead time, is calculated, the data is transmitted to the total control module, the data is stored in the storage module by the total control module, and the data is transmitted to the detonation operation terminal through the wireless communication module.

15. The method of claim 8, wherein: The operation method of the seismic exploration node type detonation device further comprises, after step 7, step 8, after the well gun excitation is completed, the detonation operation terminal recovers the pile number, the position coordinates, the detonator shell code or the chip code, the actual detonation time, the detonation vibration data and other information of the detonation execution terminal through the wireless mode.

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