High-voltage excitation signal conversion device and method for geological exploration electronic detonator

Abstract

The invention relates to the technical field of petroleum geological exploration, and discloses a high-voltage excitation signal conversion device and method for a geological exploration electronic detonator, a high-low voltage switching circuit is arranged between a geological exploration decoder and a geological exploration electronic detonator detonation controller, and a high-low voltage conversion module of the high-low voltage switching circuit is used for high-low voltage pulse conversion; a low-voltage safety voltage pulse signal output by a high-low voltage conversion module is converted into a 3.3 V signal which can be identified by a microprocessor through a logic level conversion module of the high-low voltage switching circuit; when the detonation authority is obtained, the load detection module opens the NMOS tube Q2, and the load simulation resistor R6 of the load detection module replaces the electric detonator load and is used for obtaining a normal detonation signal, so that the geological exploration electronic detonator is detonated through the existing electric detonator system. High pressure cannot enter the detonation controller at the rear end, and safety and reliability of geological exploration projects are improved.

Description

Technical Field

[0001] The invention relates to the technical field of petroleum geological exploration, and in particular to a high-voltage excitation signal conversion device and method for geological exploration electronic detonators. Background Art

[0002] Seismic exploration can be used in petroleum exploration projects. Its principle is to use elastic waves stimulated by artificial methods to locate mineral deposits and obtain engineering geological information. Seismic exploration is an important means of geological prospecting for oil, natural gas resources and solid resources before drilling. It is also widely used in coalfield and engineering geological exploration, regional geological research and crustal research.

[0003] Existing electric detonators can be used for seismic exploration. However, the defects of electric detonators are that they can be detonated without authorization, have poor safety, are difficult to control, have loopholes in authorization management, and pose safety hazards to electric detonators. Digital electronic detonators are a detonator technology that is more suitable for seismic exploration because of their advantages in safety and control.

[0004] The detonation method of geological exploration is different from that of conventional electronic detonators. The detonation signal of geological exploration is sent by the geological exploration BoomBox, which is an external excitation, so a dedicated detonation process is required. The main process of the detonation of geological exploration electronic detonators includes: the seismic wave detection vehicle operates the encoder to send a detonation command, which is sent from radio station 1 to radio station 2, and then a 400V high-voltage pulse signal is sent through the decoder. The high-voltage signal needs to be transmitted to the detonator controller, and the detonator controller converts it into a detonation bus signal to instantly detonate the electronic detonator. The decoder sends a 400V high-voltage pulse signal, and the electronic detonator detonator controller usually uses low-voltage DC drive. The existing detonator cannot directly receive the high-voltage pulse signal from the decoder, and it is necessary to identify and convert the high-voltage pulse sent by the decoder; and the detonation delay of the seismic exploration electronic detonator is required to be controlled at the microsecond level. When converting the high-voltage pulse signal, the excitation signal response time needs to be considered to avoid delays in the excitation signal and affect the instantaneous explosion function of the geological exploration electronic detonator. In addition, the issue of detonation safety cannot be ignored from beginning to end.

[0005] Based on this, the present application proposes a high-voltage excitation signal conversion device and method for geological exploration electronic detonators. Summary of the invention

[0006] The purpose of the present invention is to provide a high-voltage excitation signal conversion device and method for geological exploration electronic detonators. The high-low voltage conversion circuit can convert a 400V high-voltage signal into a safe voltage pulse signal that can be recognized by a 3.3V microprocessor, and the instantaneous input of the detonation signal can realize instantaneous action, thereby ensuring that the instantaneous explosion of the geological exploration electronic detonator can be realized. At the same time, the voltage-stabilizing diode D1 can realize high-voltage isolation, so that the high voltage will not enter the back-end detonation controller, thereby improving the safety and reliability of the geological exploration project.

[0007] The purpose of the present invention can be achieved through the following technical solutions: In the first aspect, the present invention provides a high-voltage excitation signal conversion device for a geological exploration electronic detonator, comprising a high-low voltage switching circuit, wherein the high-low voltage switching circuit is arranged between a geological exploration decoder and a geological exploration electronic detonator detonation controller; The high-low voltage transfer circuit includes a high-low voltage conversion module, a load simulation resistance module and a microprocessor; The high-low voltage conversion module is used to perform high-low voltage pulse conversion, and a logic level conversion module is connected to the rear end of the high-low voltage conversion module. The logic level conversion module is used to convert the low-voltage safety voltage pulse signal output by the high-low voltage conversion module into a 3.3V signal that can be recognized by the microprocessor; The load simulation resistance module is connected to the high-low voltage conversion module, and the load simulation resistance module is used to achieve compatibility with the existing electric detonator system and obtain a normal detonation signal.

[0008] As a further solution of the present invention: the high-low voltage conversion module includes a transient voltage suppressor TVS1, and both ends of the transient voltage suppressor TVS1 are respectively connected to the first voltage input terminal HV-1 and the second voltage input terminal HV-2 of the input end.

[0009] As a further solution of the present invention: both ends of the transient voltage suppressor TVS1 are also connected to the input terminals AC1 and AC2 of the rectifier bridge D1 to prevent the input terminal of the rectifier bridge D1 from exceeding 400V.

[0010] As a further solution of the present invention: the low voltage conversion module further includes a voltage limiting zener diode D2, and a voltage dividing voltage R1, a voltage dividing resistor R3 and a current limiting resistor R2 are further provided at the rear end of the voltage limiting zener diode D2; One end of the current limiting resistor R2 is connected to the voltage dividing resistor R1 and the voltage dividing resistor R3, and the other end of the current limiting resistor R2 is connected to the cathode port of the voltage zener diode D3. The voltage zener diode D3 and the current limiting resistor R2 form an output voltage of 10V.

[0011] As a further solution of the present invention: the voltage-dividing resistor R1 and the voltage-dividing resistor R3 are used to convert the 400V high-voltage pulse excitation signal into a 26V low-voltage voltage pulse signal.

[0012] As a further solution of the present invention: the load simulation resistance module includes a load simulation resistor R6, which is connected in parallel with the voltage regulator diode D2 of the high-low voltage conversion module. When the detonation authority is obtained, the NMOS tube Q2 is turned on, and the load simulation resistor R6 replaces the electric detonator load.

[0013] On the other hand: The present invention provides a high-voltage excitation signal conversion method for geological exploration electronic detonators, comprising the following steps: The high-low voltage transfer circuit is arranged between the geological survey decoder and the geological survey electronic detonator detonation controller, and the high-low voltage conversion module of the high-low voltage transfer circuit is used for high-low voltage pulse conversion; The logic level conversion module of the high-low voltage conversion circuit converts the low-voltage safety voltage pulse signal output by the high-low voltage conversion module into a 3.3V signal that can be recognized by the microprocessor; When obtaining the detonation authority, the load detection module turns on the NMOS tube Q2, and the load simulation resistor R6 of the load detection module replaces the electric detonator load to obtain the normal detonation signal, thereby detonating the geological exploration electronic detonator through the existing electric detonator system.

[0014] As a further solution of the present invention: In the high-voltage excitation signal conversion method of the geological exploration electronic detonator, it is also necessary to monitor and identify the component status in the high-low voltage switching circuit, specifically: Obtain the control elements required to monitor when the high and low voltage transfer circuit is running; Obtain the items that need to be monitored by the control element, and record the items that need to be monitored as monitoring items; Obtain the monitoring value of the corresponding monitoring item of the control element within the current time, and compare the monitoring value of the corresponding monitoring item with the monitoring value requirement of the monitoring item; The monitoring items of the control element monitoring items whose monitoring values ​​do not meet the monitoring value requirements are recorded as risk items; The monitoring items of the control element monitoring items whose monitoring values ​​meet the monitoring item monitoring value requirements are recorded as safe items.

[0015] As a further solution of the present invention: marking any control element with risk items, and obtaining the monitoring deviation value of each control element; That is, the difference between the monitoring value corresponding to the current time and the two endpoint values ​​of the corresponding preset monitoring range is calculated respectively, and the absolute value of the obtained difference is taken, and the value corresponding to the smaller absolute value is recorded as the monitoring deviation value of the control element; Processing the monitoring deviation value of the control element to obtain the monitoring risk coefficient of the control element; Construct a monitoring risk coefficient group, and obtain the monitoring risk variance value of all control components in the high-low voltage transfer circuit corresponding to the monitoring risk coefficient group and the monitoring risk mean value of all control components in the high-low voltage transfer circuit; The monitoring risk variance value of all control components in the high- and low-voltage transfer circuit is multiplied by the monitoring risk mean value to obtain the risk warning base of the control components in the high- and low-voltage transfer circuit.

[0016] As a further solution of the present invention: a high-voltage excitation signal conversion method for geological exploration electronic detonators, when the risk warning base number of the control element in the high-low voltage transfer circuit is less than the preset risk warning base number threshold of the control element in the high-low voltage transfer circuit, the high-low voltage transfer circuit operates safely, and the elements in the high-low voltage transfer circuit operate stably without delay during the signal conversion process; When the risk warning base number of the control elements in the high-low voltage transfer circuit is greater than or equal to the preset risk warning base number threshold number of the control elements in the high-low voltage transfer circuit, the high-low voltage transfer circuit operates abnormally, and the elements in the high-low voltage transfer circuit operate abnormally with delays in the signal conversion process.

[0017] Beneficial effects of the present invention: The high-low voltage conversion circuit of the present invention can convert a 400V high-voltage signal into a safe voltage pulse signal that can be recognized by a 3.3V microprocessor, and the instantaneous input of the detonation signal can realize instantaneous action, thereby ensuring that the instantaneous detonation of the geological exploration electronic detonator can be realized. At the same time, the voltage-stabilizing diode D1 can realize high-voltage isolation, so that the high voltage will not enter the back-end detonation controller, thereby improving the safety and reliability of the geological exploration project; At the same time, during the operation of the high-low voltage transfer circuit, the present invention collects and processes the status data of the control elements in the high-low voltage transfer circuit to obtain the risk warning base of the control elements in the high-low voltage transfer circuit, and completes the identification of the status of the control elements in the high-low voltage transfer circuit based on the risk warning base of the control elements in the high-low voltage transfer circuit, thereby effectively ensuring the safe operation of the elements in the high-low voltage transfer circuit during the signal conversion process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a structural schematic diagram of a high-voltage excitation signal conversion device for a geological exploration electronic detonator according to an embodiment of the present invention; Figure 2 It is a flow chart of a high voltage excitation signal conversion method for a geological exploration electronic detonator according to an embodiment of the present invention; Figure 3 It is a structural schematic diagram of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1:

[0021] See also Figure 1 As shown, the present invention is a high-voltage excitation signal conversion device for geological exploration electronic detonators, including a high-low voltage switching circuit; The high-low voltage transfer circuit includes a high-low voltage conversion module 10, a load simulation resistance module 20 and a microprocessor 30; The high-low voltage switching circuit is arranged between the geological survey decoder and the geological survey electronic detonator detonation controller, and the high-low voltage switching circuit comprises a high-low voltage conversion module 10, and the high-low voltage conversion module 10 is used for high-low voltage pulse conversion; The high-low voltage conversion module 10 includes a transient voltage suppressor TVS1, and two ends of the transient voltage suppressor TVS1 are respectively connected to a first voltage input terminal HV-1 and a second voltage input terminal HV-2 of the input terminal; Transient voltage suppressor TVS1 is used to protect the input pulse voltage from exceeding 400V; The two ends of the transient voltage suppressor TVS1 are also connected to the input terminals AC1 and AC2 of the rectifier bridge D1 to prevent the input terminal of the rectifier bridge D1 from exceeding 400V. When in use, no matter what the polarity of the power supply input to the full-bridge rectifier bridge is, the output always remains fixed. Whether it is positive or reverse connection, the circuit can automatically identify the positive and negative polarity without considering the polarity of the input pin.

[0022] Among them, the rectifier bridge D1 adopts a full-bridge rectifier bridge, model EABS24; Further: the high-low voltage conversion module 10 also includes a voltage limiting zener diode D2, and a voltage dividing voltage R1, a voltage dividing resistor R3 and a current limiting resistor R2 are also provided at the rear end of the voltage limiting zener diode D2; One end of the current limiting resistor R2 is connected to the voltage dividing resistor R1 and the voltage dividing resistor R3, and the other end of the current limiting resistor R2 is connected to the cathode port of the voltage zener diode D3. The voltage zener diode D3 and the current limiting resistor R2 form an output voltage of 10V; The voltage-dividing resistors R1 and R3 are used to convert the 400V high-voltage pulse excitation signal into a 26V low-voltage pulse signal, and the current-limiting resistor R2 is used for current-limiting protection.

[0023] The high-low voltage connection circuit also includes a logic level conversion module arranged at the rear end of the high-low voltage conversion module 10; The logic level conversion module includes an NMOS tube Q4 for converting the 10V low-voltage safety voltage pulse signal output by the current limiting resistor R2 and the voltage stabilizing diode D3 into a 3.3V signal that can be recognized by the microprocessor 30.

[0024] It also includes a load simulation resistor module 20, which includes a load simulation resistor R6. The load simulation resistor R6 is connected in parallel with the voltage regulator diode D2 of the high-low voltage conversion module 10. When the detonation authority is obtained, the NMOS tube Q2 is turned on. The load simulation resistor R6 replaces the electric detonator load and is compatible with the existing electric detonator system. It is used to obtain a normal detonation signal, so that the geological exploration electronic detonator can be detonated through the existing electric detonator system.

[0025] When in use, the high-low voltage conversion circuit provided in this embodiment can convert the 400V high-voltage signal into a safe voltage pulse signal that can be recognized by the 3.3V microprocessor 30, and the instantaneous input of the detonation signal can achieve instantaneous action, ensuring that the instantaneous explosion of the geological exploration electronic detonator can be achieved. At the same time, the voltage-stabilizing diode D1 can achieve high-voltage isolation, so that the high voltage will not enter the back-end detonation controller, thereby improving the safety and reliability of the geological exploration project. Embodiment 2:

[0026] See also Figure 2 As shown, the present invention is a high-voltage excitation signal conversion method for geological exploration electronic detonators, comprising the following steps: The high-low voltage switching circuit is arranged between the geological survey decoder and the geological survey electronic detonator detonation controller, and the high-low voltage conversion module 10 of the high-low voltage switching circuit is used for high-low voltage pulse conversion; The logic level conversion module of the high-low voltage conversion circuit converts the low-voltage safety voltage pulse signal output by the high-low voltage conversion module 10 into a 3.3V signal that can be recognized by the microprocessor 30; When obtaining the detonation authority, the load detection module 20 turns on the NMOS tube Q2, and the load simulation resistor R6 of the load detection module 20 replaces the electric detonator load to obtain a normal detonation signal, thereby detonating the geological exploration electronic detonator through the existing electric detonator system.

[0027] In a specific embodiment: since the detonation delay of the electronic detonator for seismic exploration is required to be controlled at the microsecond level, the components in the high-low voltage switching circuit need to remain stable during the signal conversion process to reduce interference and loss; Based on, the high-voltage excitation signal conversion method of the geological exploration electronic detonator also needs to monitor and identify the component status in the high-low voltage transfer circuit, specifically: Obtain the control elements required to monitor when the high and low voltage transfer circuit is running; Obtain the items that need to be monitored by the control element, and record the items that need to be monitored as monitoring items; Obtain the monitoring value of the corresponding monitoring item of the control element within the current time, and compare the monitoring value of the corresponding monitoring item with the monitoring value requirement of the monitoring item; The monitoring items of the control element monitoring items whose monitoring values ​​do not meet the monitoring value requirements are recorded as risk items; Record the monitoring items of the control element monitoring items whose monitoring values ​​meet the monitoring item monitoring value requirements as safe items; Mark any control element with risk items and obtain the monitoring deviation value of each control element; That is, the difference between the monitoring value corresponding to the current time and the two endpoint values ​​of the corresponding preset monitoring range is calculated respectively, and the absolute value of the obtained difference is taken, and the value corresponding to the smaller absolute value is recorded as the monitoring deviation value of the control element; Calculate the ratio of the monitoring deviation value of the control element to the monitoring median value of the control element to obtain the monitoring deviation ratio of the control element; The monitoring median value of the control element is the mean of the two endpoint values ​​of the preset monitoring range.

[0028] It should be noted that: each individual control element may have multiple risk items, and the monitoring deviation ratio of each corresponding risk item is obtained; The monitoring deviation ratios of multiple risk items of the same control element are weighted to obtain the monitoring risk coefficient of the control element; Exemplarily, when the risk items of the control element are abnormal temperature items and abnormal current items; Get the temperature deviation ratio corresponding to the temperature anomaly item, recorded as Wi; Obtain the current deviation ratio corresponding to the current abnormality item, recorded as Di; The weight ratio of the temperature deviation ratio Wi corresponding to the temperature anomaly item is assigned to k1, and the weight ratio of the current deviation ratio Di corresponding to the current anomaly item is assigned to k2; The monitoring risk coefficient of the control element is calculated by the formula Ji=Wi*k1+Di*k2, where k1+k2=1, and k2 and k1 are both greater than 0.

[0029] When there is only one risk item in a control element, the monitoring deviation ratio corresponding to the risk item is recorded as the monitoring risk coefficient of the control element.

[0030] Integrate the monitoring risk coefficients of all control components in the high and low voltage transfer circuit to obtain a monitoring risk coefficient group; The monitoring risk coefficient group is processed according to the variance calculation formula to obtain the monitoring risk variance values ​​of all control components in the high and low voltage transfer circuit; Then the monitoring risk coefficient groups are summed to obtain the total monitoring risk coefficient value, and the total monitoring risk coefficient value is calculated by ratio with the number of all control elements in the high-low voltage transfer circuit to obtain the monitoring risk mean value of all control elements in the high-low voltage transfer circuit; The monitoring risk variance value of all control elements in the high-low voltage transfer circuit is multiplied by the monitoring risk mean value of all control elements in the high-low voltage transfer circuit to obtain the risk warning base number of the control elements in the high-low voltage transfer circuit; Among them, the monitoring items include but are not limited to current value, voltage value, temperature value, humidity value, vibration frequency, etc. The monitoring content of the monitoring items is determined according to the corresponding usage scenario of the target component. The content of the monitoring items is generated by the corresponding component when it is working. For example, the current value and voltage value are the actual current value and voltage value when the control element is working; Compare the risk warning base of the control element in the high-low voltage transfer circuit with the preset risk warning base threshold of the control element in the high-low voltage transfer circuit When the risk warning base number of the control element in the high-low voltage transfer circuit is less than the preset risk warning base number threshold of the control element in the high-low voltage transfer circuit, the high-low voltage transfer circuit operates safely, and the elements in the high-low voltage transfer circuit operate stably without delay during the signal conversion process; When the risk warning base number of the control elements in the high-low voltage transfer circuit is greater than or equal to the preset risk warning base number threshold number of the control elements in the high-low voltage transfer circuit, the high-low voltage transfer circuit operates abnormally, and the elements in the high-low voltage transfer circuit operate abnormally with delays in the signal conversion process.

[0031] In a specific embodiment, the greater the risk warning base number of the control element in the high-low voltage transfer circuit, the more serious the operation fluctuation of the element in the high-low voltage transfer circuit during the signal conversion process, which facilitates the reasonable arrangement of maintenance personnel to promptly and effectively repair the elements in the high-low voltage transfer circuit, and has a high degree of visualization; Among them, the risk warning base threshold of the control components in the high and low voltage transfer circuit is an empirical value obtained based on experience. Embodiment 3:

[0032] Reference Figure 3 The embodiment of the present invention further provides a computer device 3, comprising: a memory 302 and a processor 301 and a computer program 303 stored in the memory 302. When the computer program 303 is executed on the processor 301, a high-voltage excitation signal conversion method for geological exploration electronic detonators as described in any one of the above methods is implemented.

[0033] The computer device 3 may be a computing device such as a desktop computer, a notebook, a PDA, or a cloud server. The computer device 3 may include, but is not limited to, a processor 301 and a memory 302. Those skilled in the art will appreciate that Figure 3It is only an example of computer device 3 and does not constitute a limitation on computer device 3. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components, for example, it may also include input and output devices, network access devices, etc.

[0034] The processor 301 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0035] In some embodiments, the memory 302 may be an internal storage unit of the computer device 3, such as a hard disk or memory of the computer device 3. In other embodiments, the memory 302 may also be an external storage device of the computer device 3, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped on the computer device 3. Further, the memory 302 may also include both an internal storage unit of the computer device 3 and an external storage device. The memory 302 is used to store an operating system, an application program, a boot loader (BootLoader), data, and other programs, such as the program code of the computer program, etc. The memory 302 may also be used to temporarily store data that has been output or is to be output. Embodiment 4:

[0036] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the high-voltage excitation signal conversion method for geological exploration electronic detonators as described in any one of the above methods is implemented.

[0037] In this embodiment, if the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium can at least include: any entity or device that can carry the computer program code to the camera / terminal device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. For example, a USB flash drive, a mobile hard disk, a disk or an optical disk. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electric carrier signals and telecommunication signals.

[0038] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0039] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A high voltage excitation signal conversion device for geological exploration electronic detonators, characterized in that: It includes a high-low voltage switching circuit, which is arranged between the geological survey decoder and the geological survey electronic detonator detonation controller; The high-low voltage transfer circuit comprises a high-low voltage conversion module (10), a load simulation resistance module (20) and a microprocessor (30); The high-low voltage conversion module (10) is used to perform high-low voltage pulse conversion, and a logic level conversion module is connected to the rear end of the high-low voltage conversion module (10), and the logic level conversion module is used to convert the low voltage safety voltage pulse signal output by the high-low voltage conversion module (10) into a 3.3V signal that can be recognized by the microprocessor (30); The load simulation resistance module (20) is connected to the high-low voltage conversion module (10), and the load simulation resistance module (20) is used to achieve compatibility with an existing electric detonator system and obtain a normal detonation signal.

2. A high voltage excitation signal conversion device for geological exploration electronic detonators according to claim 1, characterized in that: The high-low voltage conversion module (10) comprises a transient voltage suppressor TVS1, and two ends of the transient voltage suppressor TVS1 are respectively connected to a first voltage input terminal HV-1 and a second voltage input terminal HV-2 of an input end.

3. A high voltage excitation signal conversion device for geological exploration electronic detonators according to claim 2, characterized in that: The two ends of the transient voltage suppressor TVS1 are also connected to the input terminals AC1 and AC2 of the rectifier bridge D1 to prevent the input terminal of the rectifier bridge D1 from exceeding 400V.

4. A high voltage excitation signal conversion device for geological exploration electronic detonators according to claim 3, characterized in that: The low voltage conversion module (10) further comprises a voltage limiting stabilizing diode D2, and a voltage dividing resistor R1, a voltage dividing resistor R3 and a current limiting resistor R2 are arranged at the rear end of the voltage limiting stabilizing diode D2; One end of the current limiting resistor R2 is connected to the voltage dividing resistor R1 and the voltage dividing resistor R3, and the other end of the current limiting resistor R2 is connected to the cathode port of the voltage zener diode D3. The voltage zener diode D3 and the current limiting resistor R2 form an output voltage of 10V.

5. A high voltage excitation signal conversion device for geological exploration electronic detonators according to claim 4, characterized in that: The voltage-dividing resistor R1 and the voltage-dividing resistor R3 are used to convert the 400V high-voltage pulse excitation signal into a 26V low-voltage pulse signal.

6. A high voltage excitation signal conversion device for geological exploration electronic detonators according to claim 1, characterized in that: The load simulation resistor module (20) comprises a load simulation resistor R6, which is connected in parallel with the voltage regulator diode D2 of the high-low voltage conversion module (10). When the detonation authority is obtained, the NMOS tube Q2 is turned on, and the load simulation resistor R6 replaces the electric detonator load.

7. A high voltage excitation signal conversion method for geological exploration electronic detonators, characterized in that: The following steps are involved: The high-low voltage switching circuit is arranged between the geological exploration decoder and the geological exploration electronic detonator detonation controller, and the high-low voltage conversion module (10) of the high-low voltage switching circuit is used to perform high-low voltage pulse conversion; The logic level conversion module of the high-low voltage conversion circuit converts the low-voltage safety voltage pulse signal output by the high-low voltage conversion module (10) into a 3.3V signal that can be recognized by the microprocessor (30); When the detonation authority is obtained, the load detection module (20) turns on the NMOS tube Q2, and the load simulation resistor R6 of the load detection module (20) replaces the electric detonator load to obtain a normal detonation signal, thereby detonating the geological exploration electronic detonator through the existing electric detonator system.

8. A high voltage excitation signal conversion method for geological exploration electronic detonators according to claim 7, characterized in that: In the high-voltage excitation signal conversion method of the geological exploration electronic detonator, it is also necessary to monitor and identify the component status in the high-low voltage transfer circuit, specifically: Obtain the control elements required to monitor when the high and low voltage transfer circuit is running; Obtain the items that need to be monitored by the control element, and record the items that need to be monitored as monitoring items; Obtain the monitoring value of the corresponding monitoring item of the control element within the current time, and compare the monitoring value of the corresponding monitoring item with the monitoring value required by the monitoring item; The monitoring items of the control element monitoring items whose monitoring values ​​do not meet the monitoring value requirements are recorded as risk items; The monitoring items of the control element monitoring items whose monitoring values ​​meet the monitoring item monitoring value requirements are recorded as safe items.

9. A high voltage excitation signal conversion method for geological exploration electronic detonators according to claim 8, characterized in that: Mark any control element with risk items and obtain the monitoring deviation value of each control element; That is, the difference between the monitoring value corresponding to the current time and the two endpoint values ​​of the corresponding preset monitoring range is calculated respectively, and the absolute value of the obtained difference is taken, and the value corresponding to the smaller absolute value is recorded as the monitoring deviation value of the control element; Processing the monitoring deviation value of the control element to obtain the monitoring risk coefficient of the control element; Construct a monitoring risk coefficient group, and obtain the monitoring risk variance value of all control components in the high-low voltage transfer circuit corresponding to the monitoring risk coefficient group and the monitoring risk mean value of all control components in the high-low voltage transfer circuit; The monitoring risk variance value of all control components in the high- and low-voltage transfer circuit is multiplied by the monitoring risk mean value to obtain the risk warning base of the control components in the high- and low-voltage transfer circuit.

10. The high voltage excitation signal conversion method for geological exploration electronic detonators according to claim 1, characterized in that: When the risk warning base number of the control element in the high-low voltage transfer circuit is less than the preset risk warning base number threshold of the control element in the high-low voltage transfer circuit, the high-low voltage transfer circuit operates safely, and the elements in the high-low voltage transfer circuit operate stably without delay during the signal conversion process; When the risk warning base number of the control elements in the high-low voltage transfer circuit is greater than or equal to the preset risk warning base number threshold number of the control elements in the high-low voltage transfer circuit, the high-low voltage transfer circuit operates abnormally, and the elements in the high-low voltage transfer circuit operate abnormally with delays in the signal conversion process.

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