High-ignition-voltage electronic detonator safe initiation system and control method

Abstract

The invention discloses a high-ignition-voltage electronic detonator safe initiation system and a control method, and belongs to the field of detonator control. The system comprises a receiving detonation mobile phone, a detonation control box and an electronic detonator, a detonating control circuit board and a battery pack are arranged in the detonating control box, the detonating control box comprises a Bluetooth / wireless module, a low-voltage step-down circuit, a high-voltage step-up circuit, a driving circuit and an MCU circuit, and the input end of the Bluetooth / wireless module is in data connection with the detonating receiving mobile phone and is in bidirectional data connection with the MCU circuit; the low-voltage step-down circuit provides two 18V output lines which are electrically connected with the input end of the high-voltage boost circuit and the input end of the MCU circuit respectively. Through the detonation control circuit, high voltage and communication voltage 18V can be output, the difference between the communication voltage and the charging voltage of the detonation system is large, and the safety is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of detonator control, and in particular to a high ignition voltage electronic detonator safety initiation system and a control method. Background Art

[0002] In the existing industrial digital electronic detonators at home and abroad, the detonator control chip uses a chip that integrates low-voltage analog circuits and low-voltage digital circuits. The chip's power supply voltage / output voltage is usually less than or equal to 25V, and the communication process is usually less than 10V. The electronic detonator uses a low voltage (10~25V) to charge the energy storage capacitor through the chip charging instruction; then it detonates according to the chip detonation instruction. The total energy of the ignition discharge process is generally less than 30mJ. It discharges in the electric heating wire type electric ignition head, and ignites the flammable gunpowder (powder head) wrapped on the heating wire through the thermal effect. Due to the low ignition energy, electronic detonators generally need to use the powder head to ignite the detonator, and then the detonator combustion is converted to detonation to complete the detonation of the high explosive in the detonator. The detonator generally uses DDNP, Pb(N3)2, etc. with high sensitivity.

[0003] Refer to Chinese patent, publication number: CN114111486A, which discloses an electronic detonator initiating device and its working method.

[0004] In the prior art including the above patents, the electronic detonator chip solution with low ignition voltage is not suitable for high voltage ignition scenarios, such as electronic detonator solution without explosives, etc. The electronic detonator solution with high ignition voltage is the future development trend and direction. The high ignition voltage can start higher energy (200mJ and above), and can directly ignite and complete the detonation of high explosives. Summary of the invention

[0005] Purpose of the invention: The purpose of the present invention is to provide a high ignition voltage electronic detonator safe detonation system and control method; another purpose of the present invention is to provide a high ignition voltage electronic detonator safe detonation system and control method that makes the communication voltage and charging voltage of the detonation system differ greatly.

[0006] Technical solution: A high ignition voltage electronic detonator safety detonation system, including a receiving detonation mobile phone, a detonation control box and an electronic detonator;

[0007] The detonation control box has a detonation control circuit board and a battery pack built in, which includes: a Bluetooth / wireless module, a low-voltage buck circuit, a high-voltage boost circuit, a drive circuit and an MCU circuit, wherein:

[0008] The input end of the Bluetooth / wireless module is connected to the receiving and detonating mobile phone data, and is bidirectionally connected to the MCU circuit data;

[0009] The low voltage step-down circuit provides two 18V output circuits, which are electrically connected to the input end of the high voltage step-up circuit and the input end of the MCU circuit respectively;

[0010] The input end of the high voltage boost circuit is electrically connected to the input end of the low voltage step-down circuit;

[0011] The input end of the driving circuit is electrically connected to the output end of the low voltage step-down circuit;

[0012] The output end of the MCU circuit is electrically connected to the input ends of the low voltage step-down circuit, the high voltage step-up circuit and the drive circuit.

[0013] Preferably, the detonation control box includes a GPS module, and the UART serial port on the GPS module is connected to the UART serial port on the detonation control circuit board.

[0014] Preferably, the detonation control box further includes a key control module, which includes a detonator output terminal, an indicator light, a power switch, a charging switch and a detonation switch, wherein:

[0015] The input end of the detonator output terminal is electrically connected to the output end of the drive circuit and the output end of the high-voltage boost circuit, while the output end is electrically connected to the input end of the electronic detonator;

[0016] The indicator light, the charging switch and the detonation switch are connected to the IO pins of the MCU circuit;

[0017] The power switch is connected to the battery pack output port.

[0018] Preferably, the low voltage step-down circuit is used to reduce the unstable 24V battery pack to a stable low voltage, and is movably assembled for the following stations:

[0019] Station 1, output 3.3V to maintain the normal operation of the MCU circuit;

[0020] Station 2, outputting 18V to provide voltage boost to the high-voltage boost circuit;

[0021] Station three, output 18V to provide communication for the electronic detonator.

[0022] Preferably, the detonator output terminal adopts Modbus protocol.

[0023] Preferably, a screen is fixedly mounted on the detonation control box, which includes a Bluetooth / wireless status display interface, a lithium battery voltage display interface, a capacitor voltage display interface, a communication voltage display interface, a charging voltage display interface and a networking status display interface.

[0024] A high ignition voltage electronic detonator safe detonation control method, which is based on the high ignition voltage electronic detonator safe detonation system described in the above scheme, is characterized by comprising the following steps:

[0025] S01, the MCU circuit receives the "detonator input" instruction transmitted by the detonation handheld device through the Bluetooth / wireless module, and the MCU circuit controls the low-voltage step-down circuit to complete the 18V communication voltage output. When the MCU circuit detects that the communication voltage is normal, it controls the corresponding low-voltage indicator light to light up, completing the low-voltage step-down stage;

[0026] S02, the MCU circuit receives the "detonator charging" instruction transmitted by the detonation handheld device through the Bluetooth / wireless module, and the MCU circuit controls the high-voltage boost circuit to output a high voltage of 40-120V. When the MCU circuit detects that the high-voltage output is normal, the corresponding high-voltage indicator light is controlled to light up, completing the high-voltage boost stage;

[0027] S03, when the charging switch on the detonation control box is not turned on, the "CHARGE" pin of the MCU circuit is at a low level "0". At this time, when the detonation handheld device sends a charging instruction to the MCU circuit, a failure instruction will be returned, and the detonation handheld device will display "Error, charging switch is not turned on!";

[0028] S04, when the charging switch on the detonation control box is turned on, the "CHARGE" pin of the MCU circuit is at a high level "1". At this time, the detonation handheld device sends a charging command to the MCU circuit, and a success command is returned, and the detonation system completes the high-voltage boost stage;

[0029] S05, controlling the detonation switch to turn on, and completing the safe detonation of the electronic detonator.

[0030] Preferably, before executing step S01, when the power switch of the detonation control box is turned on, the 24V voltage of the battery pack passes through the low-voltage step-down circuit to complete the 3.3V MCU power supply voltage output, so that the MCU circuit works normally.

[0031] Preferably, after step S01 is completed, the 24V voltage of the battery pack is reduced to an 18V communication voltage.

[0032] Preferably, after the execution of step S01, the voltage output by the low voltage step-down circuit is less than or equal to 36V.

[0033] Beneficial effects:

[0034] 1. The high ignition voltage electronic detonator safety initiation system and control method are used in electronic detonator initiation projects that require high ignition voltage ignition. Through the core initiation control circuit, the communication voltage and charging voltage of the chip are relatively different, and low voltage (≤36V) input and high ignition voltage (40V~120V) output can reduce personnel operation risks and improve the reliability of electronic detonators during use.

[0035] 2. The "first drop and then increase" control method is adopted to reduce the unstable battery voltage to a stable voltage, ensuring that the communication voltage and high ignition voltage do not fluctuate with the battery voltage during long-term blasting operations, and the ignition system is safer and more stable; compared with the solution of directly boosting the battery voltage to output a high voltage, when the blasting operation lasts for a long time, it avoids the communication voltage and high ignition voltage being low due to battery power consumption, resulting in communication failure or explosion refusal, and the system is more reliable.

[0036] 3. The "low-in, high-out" remote boosting solution is adopted. The communication stage adopts low-voltage communication after voltage reduction to ensure the safety of personnel during the detonator input stage. During the charging process, Bluetooth transmission instructions are used to control the blasting box to output high voltage to complete the charging of the electronic detonator. The operator is isolated from the high-voltage environment, which is safer. Compared with the direct high-voltage output solution of the detonating handheld device (without passing through the blasting box), during the high-voltage charging stage, safety problems caused by accidental touch or line leakage are avoided, and the system is safer and more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a system architecture diagram of the present invention / embodiment 1;

[0038] Figure 2 is a flow chart of the present invention / embodiment 2;

[0039] Figure 3 is a control flow chart of the high-voltage boost stage of the present invention / Example 2;

[0040] Figure 4 This is a high ignition voltage safety output through charging control flow chart of the present invention / Example 2.

[0041] Description of reference numerals:

[0042] 1. Receive detonation mobile phone; 2. Detonation control box; 3. Electronic detonator; 4. Screen; 41. Bluetooth / wireless status display interface; 42. Lithium battery voltage display interface; 43. Capacitor voltage display interface; 44. Communication voltage display interface; 45. Charging voltage display interface; 46. Networking status display interface; 5. Battery pack; 6GPS module; 7. Detonation control circuit board; 71. Bluetooth / wireless module; 72. Low voltage step-down circuit; 73. High voltage step-up circuit; 74. Drive circuit; 75. MCU circuit; 8. Key control module; 81. Detonator output terminal; 82. Indicator light; 83. Power switch; 84. Charging switch; 85. Detonation switch. DETAILED DESCRIPTION

[0043] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] Example 1

[0045] like Figure 1 As shown, a high ignition voltage electronic detonator safety detonation system includes a receiving detonation mobile phone 1, a detonation control box 2 and an electronic detonator 3;

[0046] The detonation control box 2 has a detonation control circuit board 7 and a battery pack 5 built in, which includes: a Bluetooth / wireless module 71, a low-voltage buck circuit 72, a high-voltage boost circuit 73, a drive circuit 74 and an MCU circuit 75, wherein:

[0047] The input end of the Bluetooth / wireless module 71 is connected to the receiving and detonating mobile phone 1 for data, and is bidirectionally connected to the MCU circuit 75 for data;

[0048] The low voltage step-down circuit 72 provides two 18V output lines, which are electrically connected to the input end of the high voltage step-up circuit 73 and the input end of the MCU circuit 75 respectively;

[0049] The input end of the high voltage boost circuit 73 is electrically connected to the input end of the low voltage buck circuit 72;

[0050] The input terminal of the driving circuit 74 is electrically connected to the output terminal of the low voltage step-down circuit 72;

[0051] The output end of the MCU circuit 75 is electrically connected to the input ends of the low voltage step-down circuit 72 , the high voltage step-up circuit 73 and the driving circuit 74 .

[0052] Furthermore, the detonation control box 2 includes a GPS module 6 , and a UART serial port on the GPS module 6 is connected to a UART serial port on the detonation control circuit board 7 .

[0053] Secondly, the detonation control box 2 also includes a key control module 8, which includes a detonator output terminal 81, an indicator light 82, a power switch 83, a charging switch 84 and a detonation switch 85, wherein:

[0054] The input end of the detonator output terminal 81 is electrically connected to the output end of the drive circuit 74 and the output end of the high-voltage boost circuit 73, while the output end is electrically connected to the input end of the electronic detonator 3;

[0055] The indicator light 82, the charging switch 84 and the detonation switch 85 are connected to the IO pins of the MCU circuit 75;

[0056] The power switch 83 is connected to the output port of the battery pack 5 .

[0057] Specifically, the detonating handheld device 1 is wirelessly connected to the detonating control box 2 via a Bluetooth / wireless module 71; the detonator output terminal 81 of the detonating control box 2 is connected to the electronic detonator 3 pin via a busbar, using the Modbus protocol; the RS232 serial port of the screen 4 is connected to the RS232 serial port of the detonating control circuit board 7; the output port of the battery pack 5 is connected to the screen 4 and the detonating control circuit board 7 via a DC5.5 power adapter cable; the UART serial port of the GPS module 6 is connected to the UART serial port of the detonating control circuit board 7; the indicator light 82, the charging switch 84, and the detonating switch 85 are connected to the IO pins of the MCU circuit 75; the power switch 83 is a physical switch, connected to the output port of the battery pack 5; the input end of the detonator output terminal 81 is the high-voltage boost circuit 73, and the output end is the electronic detonator 3.

[0058] The input end of the Bluetooth / wireless module 71 is the detonating handheld device 1, and the output end is the MCU circuit 75; the input end of the low-voltage step-down circuit 72 is the battery pack 5, one 3.3V output end is the MCU circuit 75, one 18V output end is the high-voltage boost circuit 73, and another 18V output end is the drive circuit 74; the input end of the high-voltage boost circuit 73 is the low-voltage step-down circuit 72, and the output end is the detonator output terminal 81; the input end of the drive circuit 74 is the low-voltage step-down circuit 72, and the output end is the detonator output terminal 81; the input end of the MCU circuit 75 is the battery pack 5, one end is the Bluetooth / wireless module 71, and the output end is the Bluetooth / wireless module 71, the low-voltage step-down circuit 72, the high-voltage step-up circuit 73, and the drive circuit 74.

[0059] Furthermore, the low voltage step-down circuit 72 is used to reduce the unstable 24V battery pack 5 to a stable low voltage, and is flexibly assembled for the following stations:

[0060] Station 1, output 3.3V to maintain the normal operation of MCU circuit 75;

[0061] Station 2, output 18V to provide high voltage boost circuit 73 for boosting;

[0062] Station three, output 18V to provide electronic detonator 3 communication.

[0063] The above-mentioned DC-DC buck chip LM2596 is used to output 18V; the DC-DC buck chip BL9342 is used to first step down to 5V, and then output 3.3V through the LDO linear regulator XC6206P332.

[0064] The high ignition voltage electronic detonator safety initiation system achieves high ignition voltage output through the "first drop and then rise" control method. The "first drop and then rise" control method can ensure that during the use of the product, the voltage in the detonator and the bus network is lower than 36V, and there is no need to directly output a 40V~120V voltage through the detonator for charging, ensuring the safety of the operator. And the "first drop and then rise" control method can also ensure the stability of the boosting process of the detonation system, avoiding high voltage output fluctuations due to unstable battery voltage output, ensuring the safety of the operator.

[0065] The charging switch 84 adopts a key switch, and the key is kept by a dedicated person: on the one hand, it can provide security control of the detonation site; on the other hand, it can prevent the detonation system from being stolen and used for illegal explosion activities.

[0066] The GPS module 6 provides an anti-loss function. When the detonating system is lost or stolen, it can be located in real time through the GPS module 6 and quickly retrieved. The Bluetooth / wireless module 71 provides a remote operation function. The detonating control box 2 outputs high voltage in the high voltage stage, and the detonating handheld device 1 in the hands of the personnel always maintains low voltage, further ensuring the safety of the operator.

[0067] It should be noted that the detonation control box 2 in the above embodiment is fixedly mounted with a screen 4, which includes a Bluetooth / wireless status display interface 41, a lithium battery voltage display interface 42, a capacitor voltage display interface 43, a communication voltage display interface 44, a charging voltage display interface 45, and a networking status display interface 46. The Bluetooth / wireless status display interface 41 is used to display the device connection status, the lithium battery voltage displays the boundary value, the communication voltage display interface 44 is used to display the communication voltage value, and the networking status display interface 46 is used to display the number of currently connected electronic detonators 3.

[0068] Example 2

[0069] like Figure 2-Figure 4 As shown, a method for controlling safe detonation of high ignition voltage electronic detonators, which is used to implement the above-mentioned embodiment 1, comprises the following steps:

[0070] S01, MCU circuit 75 receives the "detonator input" instruction transmitted by the detonating handheld device 1 through the Bluetooth / wireless module 71, and MCU circuit 75 controls the low-voltage step-down circuit 72 to complete the 18V communication voltage output. When MCU circuit 75 detects that the communication voltage is normal, it controls the corresponding low-voltage indicator light 82 to light up, completing the low-voltage step-down stage ( Figure 2 );

[0071] S02, MCU circuit 75 receives the "detonator charging" instruction transmitted by the detonating handheld device 1 through the Bluetooth / wireless module 71, and MCU circuit 75 controls the high-voltage boost circuit 73 to output a high voltage of 40~120V. When MCU circuit 75 detects that the high voltage output is normal, it controls the corresponding high-voltage indicator light 82 to light up, completing the high-voltage boost stage ( Figure 3 );

[0072] S03, when the charging switch 84 on the detonation control box 2 is not turned on, the "CHARGE" pin of the MCU circuit 75 is at a low level "0". At this time, when the detonation handheld device 1 sends a charging command to the MCU circuit 75, a failure command will be returned, and the detonation handheld device 1 displays "Error, the charging switch is not turned on!" ( Figure 4 );

[0073] S04, when the charging switch 84 on the detonation control box 2 is turned on, the "CHARGE" pin of the MCU circuit 75 is at a high level "1". At this time, the detonation handheld device 1 sends a charging command to the MCU circuit 75, and a success command is returned. The detonation system completes the high-voltage boost stage ( Figure 4 );

[0074] S05, control the detonation switch 85 to open, and complete the safe detonation of the electronic detonator.

[0075] Before executing step S01, when the power switch 83 of the detonation control box 2 is turned on, the 24V voltage of the battery pack 5 completes the 3.3V MCU power supply voltage output through the low-voltage step-down circuit 72, so that the MCU circuit 75 works normally.

[0076] Furthermore, after step S01 is completed, the 24V voltage of the battery pack 5 is reduced to an 18V communication voltage.

[0077] Furthermore, after step S01 is executed, the voltage output by the low voltage step-down circuit 72 is less than or equal to 36V.

[0078] Specifically, the high ignition voltage electronic detonator safety initiation system achieves high ignition voltage output through the "first drop and then rise" control method. The "first drop and then rise" control method can ensure that during the use of the product, the voltage in the detonator and the bus network is lower than 36V, without the need to directly output a 40V~120V voltage through the detonator for charging, ensuring the safety of the operator. The "first drop and then rise" control method can also ensure the stability of the boosting process of the detonation system, avoiding high voltage output fluctuations due to unstable battery pack voltage output, ensuring the safety of the operator.

[0079] In summary, the high ignition voltage electronic detonator safe initiation system and control method are used in electronic detonator initiation projects that require high ignition voltage ignition. Through the core initiation control circuit, the communication voltage and charging voltage of the chip are relatively different, and low voltage (≤36V) input and high ignition voltage (40V~120V) output can reduce the risk of personnel operation and improve the reliability of electronic detonators during use. In addition, the "first drop and then increase" control method is adopted to reduce the unstable battery voltage to a stable value voltage to ensure that the communication voltage and high ignition voltage do not fluctuate with the battery voltage during long-term blasting operations, and the initiation system is safer and more stable; compared with the battery voltage directly boosting and outputting high voltage solutions, when the blasting operation lasts for a long time, it avoids the communication voltage and high ignition voltage being low due to battery power consumption, resulting in communication failure or explosion refusal, and the system is more reliable. Secondly, a "low-in, high-out" remote voltage-boosting solution is adopted, and low-voltage communication after voltage reduction is used in the communication stage to ensure the safety of personnel during the detonator input stage. During the charging process, Bluetooth transmission instructions are used to control the blasting box to output high voltage to complete the charging of the electronic detonator. The operator is isolated from the high-voltage environment, which is safer. Compared with the direct high-voltage output solution of the detonating handheld device (without passing through the blasting box), during the high-voltage charging stage, safety problems caused by accidental touch or line leakage are avoided, and the system is safer and more reasonable.

[0080] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A high ignition voltage electronic detonator safety initiation system, characterized in that: It includes a receiving detonation mobile phone (1), a detonation control box (2) and an electronic detonator (3); The detonation control box (2) has a detonation control circuit board (7) and a battery pack (5) built in, and comprises: a Bluetooth / wireless module (71), a low-voltage step-down circuit (72), a high-voltage step-up circuit (73), a drive circuit (74) and an MCU circuit (75), wherein: The input end of the Bluetooth / wireless module (71) is connected to the receiving detonation mobile phone (1) for data transmission, and is bidirectionally connected to the MCU circuit (75) for data transmission; The low-voltage step-down circuit (72) provides two 18V output lines, which are electrically connected to the input end of the high-voltage step-up circuit (73) and the input end of the MCU circuit (75) respectively; The input end of the high voltage boost circuit (73) is electrically connected to the input end of the low voltage buck circuit (72); The input end of the driving circuit (74) is electrically connected to the output end of the low-voltage step-down circuit (72); The output end of the MCU circuit (75) is electrically connected to the input ends of the low-voltage step-down circuit (72), the high-voltage step-up circuit (73) and the drive circuit (74).

2. A high ignition voltage electronic detonator safety detonation system according to claim 1, characterized in that: The detonation control box (2) comprises a GPS module (6), the UART serial port on which is connected to the UART serial port on the detonation control circuit board (7).

3. A high ignition voltage electronic detonator safety initiation system according to claim 1, characterized in that: The detonation control box (2) further comprises a key control module (8), which comprises a detonator output terminal (81), an indicator light (82), a power switch (83), a charging switch (84) and a detonation switch (85), wherein: The input end of the detonator output terminal (81) is electrically connected to the output end of the drive circuit (74) and the output end of the high-voltage boost circuit (73), while the output end is electrically connected to the input end of the electronic detonator (3); The indicator light (82), the charging switch (84) and the detonation switch (85) are connected to IO pins of the MCU circuit (75); The power switch (83) is connected to the output port of the battery pack (5).

4. A high ignition voltage electronic detonator safety detonation system according to claim 1, characterized in that: The low voltage step-down circuit (72) is used to reduce the unstable 24V of the battery pack (5) to a stable low voltage, and is movably assembled for the following workstations: Station 1, outputting 3.3V to maintain the normal operation of the MCU circuit (75); Station 2, outputting 18V to provide boost to the high-voltage boost circuit (73); Station three, output 18V to provide communication for the electronic detonator (3).

5. A high ignition voltage electronic detonator safe detonation system according to claim 1, characterized in that: The detonator output terminal (81) adopts the Modbus protocol.

6. A high ignition voltage electronic detonator safety detonation system according to claim 1, characterized in that: The detonation control box (2) is fixedly provided with a screen (4), which includes a Bluetooth / wireless status display interface (41), a lithium battery voltage display interface (42), a capacitor voltage display interface (43), a communication voltage display interface (44), a charging voltage display interface (45), and a networking status display interface (46).

7. A high ignition voltage electronic detonator safe detonation control method, which is based on the high ignition voltage electronic detonator safe detonation system according to any one of claims 1 to 6, characterized in that: The following steps are involved: S01, the MCU circuit (75) receives a "detonator input" instruction transmitted by the detonating handheld device (1) via the Bluetooth / wireless module (71), the MCU circuit (75) controls the low-voltage step-down circuit (72) to complete the 18V communication voltage output, and when the MCU circuit (75) detects that the communication voltage is normal, it controls the corresponding low-voltage indicator light (82) to light up, completing the low-voltage step-down stage; S02, the MCU circuit (75) receives a "detonator charging" instruction transmitted by the detonating handheld device (1) via the Bluetooth / wireless module (71), and the MCU circuit (75) controls the high-voltage boost circuit (73) to output a high voltage of 40 to 120 V. When the MCU circuit (75) detects that the high-voltage output is normal, it controls the corresponding high-voltage indicator light (82) to light up, thus completing the high-voltage boost stage; S03, when the charging switch (84) on the detonation control box (2) is not turned on, the "CHARGE" pin of the MCU circuit (75) is at a low level "0", and at this time, when the detonation handheld device (1) sends a charging instruction to the MCU circuit (75), a failure instruction is returned, and the detonation handheld device (1) displays "Error, charging switch is not turned on!"; S04, when the charging switch (84) on the detonation control box (2) is turned on, the "CHARGE" pin of the MCU circuit (75) is at a high level "1", and at this time, the detonation handheld device (1) sends a charging instruction to the MCU circuit (75), and a success instruction is returned, and the detonation system completes the high-voltage boost stage; S05, controlling the detonation switch (85) to be turned on, thereby completing the safe detonation of the electronic detonator.

8. A method for controlling safe detonation of high ignition voltage electronic detonators according to claim 7, characterized in that: Before executing step S01, when the power switch (83) of the detonation control box (2) is turned on, the 24V voltage of the battery pack (5) is passed through the low-voltage step-down circuit (72) to complete the 3.3V MCU power supply voltage output, so that the MCU circuit (75) works normally.

9. A method for controlling safe detonation of high ignition voltage electronic detonators according to claim 7, characterized in that: After step S01 is completed, the 24V voltage of the battery pack (5) is reduced to an 18V communication voltage.

10. The method for controlling safe detonation of high ignition voltage electronic detonators according to claim 7, characterized in that: After step S01 is executed, the voltage output by the low voltage step-down circuit (72) is less than or equal to 36V.

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