Wireless detonation system and blasting method using the same

Abstract

This system configuration is inexpensive and allows for the detection of units that would fail to detonate due to communication problems or malfunctions before blasting, thereby improving the safety of blasting operations. [Solution] The device consists of a transmitting unit 7 comprising a transmitter 4 and a transmitting antenna 6, and a detonation unit 10 including a receiving antenna 8 and a receiver 9. The detonation unit 10 is equipped with a light emission signal generator 14 that outputs a light emission signal in accordance with the radio waves received by the receiving antenna 8, a transmission cable 15 that transmits the light emission signal output by the light emission signal generator 14 to the opening of the borehole 2, and a light emission signal output means 17 positioned at the end of the transmission cable 15 on the opening side. Furthermore, a light emission signal reception and analysis unit 20 is installed at a position away from the working face S, consisting of a light emission signal receiver 18 that receives the light emission signal output from the light emission signal output means 17, and a light emission signal analyzer 19 that analyzes the light emission signal received by the light emission signal receiver 18. The detonation light emission caused by the explosion of the explosive 3 can be transmitted through the transmission cable 15.

Description

Technical Field

[0005]

[0001] The present invention relates to a wireless detonation system that detonates explosives used for tunnel blasting in mountain tunnels, etc. by wireless communication using radio waves, and a blasting method using the same.

Background Art

[0002] Conventionally, the construction procedure for mountain tunnels generally involves drilling into the face rock mass, charging, stemming, and wiring, then retreating to a safe location and performing blasting excavation. After safety confirmation, the steps of sliding out, rapid excavation, installation of support structures, spraying concrete construction, and installation of rock bolts are sequentially carried out step by step.

[0003] Here, for the drilling formed in the face, the operations of charging, stemming, and wiring need to be carried out in a state of being in close contact with the face for a long time, so it is known as one of the operations with a high risk of skin abrasion disasters. If these operations of charging, stemming, and wiring can be automated, the operations that need to be in close contact with the face for a long time will be reduced, and the safety of mountain tunnel construction can be improved. Among these operations, for charging and stemming, automatic loading machines for explosives are being developed and put into practical use, but for wiring, it is very difficult to automate because it involves connecting leg wires and detonating cords.

[0004] Therefore, if a wireless detonation system that detonates the main charge by wireless communication using radio waves is used, the operations of connecting leg wires and detonating cords are no longer necessary, and the operations in a state of being in close contact with the face are no longer required, so a dramatic improvement in safety is expected. For this reason, various wireless detonation systems have been developed conventionally. <000For example, as shown in Figures 5 and 6, a wireless detonation system is known that consists of a transmitting unit 52, which is installed at a location away from the working face S and consists of a transmitter 50 that outputs a detonation signal and signals necessary for operation, and a transmitting antenna 51 that emits radio waves corresponding to the output signal of the transmitter 50; and a detonation unit 56, which includes a receiving antenna 54 inserted into a borehole 53 provided in the working face S and receiving radio waves emitted from the transmitting antenna 51, and a receiver 55 that outputs a detonation signal and signals necessary for operation according to the received radio waves. This detonation system has the simplest configuration, performing only one-way communication by receiving radio waves transmitted from the transmitting unit 52 with the receiving antenna 54 of the detonation unit 56, and does not have a function to reply from the detonation unit 56 to the transmitting unit 52.

[0006] Furthermore, the remote wireless detonator disclosed in Patent Document 1 below can be represented conceptually as shown in Figures 7 and 8. In addition to the above configuration, it is equipped with a reply circuit 57 that returns a signal indicating the state of electrical energy storage in the detonator 56 and a signal to respond to the control signal, and a reply antenna 58 that emits radio waves corresponding to the reply signal from the reply circuit 57. [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Patent No. 4309001 [Overview of the project] [Problems that the invention aims to solve]

[0008] However, in the case of wireless detonation systems that do not have a reply function, as shown in Figures 5 and 6, there is a drawback in that it is not possible to detect units that fail to detonate due to communication failure or malfunction before blasting.

[0009] Furthermore, in the case of the wireless detonation system shown in Figures 7 and 8, the return circuit 57 and return antenna 58 allow for the detection of communication failures or malfunctions before detonation by returning a return radio signal. However, this requires the return circuit 57 and return antenna 58 in the detonation unit 56, resulting in a very expensive system.

[0010] Therefore, the main objective of the present invention is to provide a wireless detonation system and a blasting method using the same, which have an inexpensive system configuration and can detect units that fail to detonate due to communication failures or malfunctions before blasting, thereby improving the safety of blasting operations. [Means for solving the problem]

[0011] To solve the aforementioned problems, the present invention according to claim 1 is a wireless detonation system that detonates explosives by wireless communication using radio waves, A transmitting unit comprising a transmitter installed at a distance from the explosive and outputting a detonation signal and signals necessary for operation, and a transmitting antenna that emits radio waves corresponding to the output signal of the transmitter, It consists of a receiving antenna inserted into a borehole formed in the bedrock to receive radio waves emitted from the transmitting antenna, and a detonation unit including a receiver that outputs a detonation signal and signals necessary for operation in response to the radio waves received by the receiving antenna. The detonation unit is provided with a light-emitting signal generator that outputs a light-emitting signal in response to radio waves received by the receiving antenna, a transmission cable that transmits the light-emitting signal output by the light-emitting signal generator to the opening of the hole, and a light-emitting signal output means located at the end of the transmission cable on the opening side that outputs the transmitted light-emitting signal to the outside. Furthermore, a wireless detonation system is provided, characterized in that a light-emitting signal receiving and analysis unit is installed at a location away from the explosive, comprising a light-emitting signal receiver that receives a light-emitting signal output from the light-emitting signal output means, and a light-emitting signal analyzer that analyzes the light-emitting signal received by the light-emitting signal receiver.

[0012] The invention described in claim 1 above is a wireless detonation system in which a transmitting unit that emits radio waves for control operation is installed at a location away from the explosive, and a detonation unit that receives the radio waves transmitted from the transmitting unit and detonates the explosive is installed in a borehole formed in the bedrock. The detonation unit is equipped with a light-emitting signal generator that outputs a light-emitting signal in response to the received radio waves, a transmission cable that transmits the light-emitting signal output by the light-emitting signal generator to the borehole opening, and a light-emitting signal output means arranged at the borehole end of the transmission cable that outputs the transmitted light-emitting signal to the outside. Furthermore, a light-emitting signal reception and analysis unit is installed at a location away from the explosive, consisting of a light-emitting signal receiver that receives the light-emitting signal emitted from the light-emitting signal output means, and a light-emitting signal analyzer that analyzes the light-emitting signal received by the light-emitting signal receiver.

[0013] Thus, the wireless detonation system according to the present invention responds to radio waves transmitted from the transmitting unit by transmitting a light-emitting signal from the detonation unit, and further receives and analyzes the transmitted light-emitting signal in the light-emitting signal receiving and analysis unit, thereby enabling the identification of the operating status of the detonation unit and any faulty circuits in the detonation unit in advance. Since the response signal from the detonation unit is a light-emitting signal, it can be made less expensive than when radio waves are used as the response signal. As a result, with an inexpensive system configuration, units that will not detonate due to communication failures or malfunctions can be detected before blasting, thereby improving the safety of blasting operations.

[0014] As part of the present invention according to claim 2, a wireless detonation system according to claim 1 is provided, wherein the transmission cable extends through the inside of the explosive to the opening of the perforation, and the detonation light generated when the explosive explodes can be transmitted through the inside of the transmission cable.

[0015] In the invention described in claim 2 above, by arranging the transmission cable to extend through the inside of the explosive to the opening of the perforation, the detonation light generated when the explosive through which the transmission cable is inserted explodes is transmitted through the inside of the transmission cable and output to the outside through the light emission signal output means. By receiving and analyzing this with the light emission signal receiving and analysis unit, it becomes possible to determine in advance whether or not the explosive will not detonate.

[0016] As part of the present invention according to claim 3, a wireless detonation system according to claim 1 is provided, wherein the transmission cable is an optical fiber.

[0017] In the invention described in claim 3 above, the transmission cable uses optical fiber, which is widely used as an optical transmission path.

[0018] As part of the present invention according to claim 4, a wireless detonation system according to claim 1 is provided, in which the transmitter of the transmitting unit and the light emission signal analyzer of the light emission signal receiving and analysis unit are configured as a single integrated device.

[0019] In the invention described in claim 4 above, the transmitter and the light emission signal analyzer, which are analysis devices for the transmitting unit and the light emission signal receiving and analysis unit, both of which are installed at a distance from the explosive, are configured as a single integrated device, thereby improving the efficiency of the equipment.

[0020] The present invention according to claim 5 is a blasting method using a wireless detonation system described in any of claims 1 to 4 above, The first step involves the transmitting unit issuing a light emission command to each detonator, the detonators responding with a light emission signal, and the light emission signal receiving and analysis unit detecting the light emission signal. The second step involves the transmitting unit sending a detonation preparation signal to each detonator, the detonators sending a light emission signal indicating that detonation preparation is complete in response to the detonation preparation signal, and the light emission signal receiving and analysis unit detecting the light emission signal. A blasting method is provided, characterized in that it comprises a third step in which the transmitting unit emits a detonation signal to each detonation unit, and the detonation unit detonates in response to the detonation signal.

[0021] In the invention described in claim 5 above, in the first step, in response to the light emission command from the transmission unit, the initiation unit returns a light emission signal, and by receiving this return signal with the light emission signal reception and analysis unit, the operating status of the initiation unit is confirmed in advance. Also, in the second step, in response to the initiation preparation signal from the transmission unit, the initiation unit returns a light emission signal indicating completion of initiation preparation, and by receiving this return signal with the light emission signal reception and analysis unit, it is confirmed in advance that the initiation preparation of the initiation unit has been completed. Therefore, units that may fail to explode due to communication problems or malfunctions in the initiation unit can be discovered before detonation.

[0022] As the invention according to claim 6, there is provided a blasting method according to claim 5, wherein the detonation light emission caused by the explosion of the explosive is output to the outside through the transmission cable and the light emission signal output means, and by receiving this with the light emission signal reception and analysis unit, the occurrence of misfiring can be confirmed.

[0023] In the invention described in claim 6 above, the detonation light emission caused by the explosion of the explosive is output to the outside through the transmission cable and the light emission signal output means, and by receiving this with the light emission signal reception and analysis unit, the occurrence of misfiring is confirmed. Therefore, the slippage and removal work after blasting can be carried out safely.

[0024] As the invention according to claim 7, there is provided a blasting method according to claim 5, wherein the first step is repeated in order for each initiation unit.

[0025] In the invention described in claim 7 above, a series of operating status confirmation operations in which the transmission unit issues a light emission command to the initiation unit, the initiation unit returns a light emission signal in response to the light emission command, and the light emission signal reception and analysis unit detects the light emission signal are repeated in order, one hole at a time, from the explosive loaded in the first drilled hole to the explosive loaded in the nth drilled hole. As a result, units with communication problems or malfunctions can be surely discovered, and appropriate countermeasures can be taken.

Effects of the Invention

[0026] As described in detail above, according to the present invention, it is possible to detect units that will not detonate due to communication failures or malfunctions before blasting, using an inexpensive system configuration, thereby improving the safety of blasting operations. [Brief explanation of the drawing]

[0027] [Figure 1] This is a system configuration diagram of the wireless detonation system 1 according to the present invention. [Figure 2] This is a cross-sectional view of the hole 2 into which the detonator 10 is loaded. [Figure 3] This is a front view of the tunnel face S, showing the flashing signal 16 for the detonator 10. [Figure 4] This is a flowchart illustrating the operation of the blasting method according to the present invention. [Figure 5] This is a system configuration diagram of a conventional wireless detonation system (part 1). [Figure 6] This is a cross-sectional view of a borehole 53 loaded with a detonator 56, showing a conventional wireless detonation system (part 1). [Figure 7] This is a system configuration diagram of a conventional wireless detonation system (part 2). [Figure 8] This is a cross-sectional view of a borehole 53 loaded with a detonator 56, showing a conventional wireless detonation system (part 2). [Modes for carrying out the invention]

[0028] Embodiments of the present invention will be described in detail below with reference to the drawings.

[0029] [Wireless detonation system 1] The wireless detonation system 1 according to the present invention is a detonation system that detonates explosives via wireless communication using radio waves from a distance to perform a blast. The present invention will be described below using the application of the present invention to tunnel blasting in mountain tunnels as an example, but the application of the present invention is not limited to this and can be broadly applied to any blasting that is performed by a detonation system.

[0030] In tunnel blasting for mountain tunnels, as shown in Figure 1, a drilling device creates numerous boreholes 2, 2… in the rock face S, and the rock face is fractured by detonating the explosives 3 (main die) loaded in each borehole 2.

[0031] As shown in Figures 1 and 2, the wireless detonation system 1 is installed at a location away from the working face S, where it is not affected by the explosion of the explosive 3, and consists of a transmitter 4 that outputs a detonation signal and signals necessary for operation, and a transmitting antenna 6 that emits radio waves (transmitted radio waves 5) corresponding to the output signal of the transmitter 4, and The detonation unit 10 includes a receiving antenna 8, which is inserted into a borehole 2 formed in the working face S and receives transmitted radio waves 5 emitted from the transmitting antenna 6, and a receiver 9, which outputs a detonation signal and signals necessary for operation in response to the transmitted radio waves 5 received by the receiving antenna 8.

[0032] The above configuration can be used without restriction with those conventionally known as wireless detonation systems.

[0033] It is preferable to use radio waves 5 emitted from the transmitting antenna 6 that have frequencies and field strengths within the range that do not violate the regulations of the Radio Law, thereby eliminating the need for special licenses. For example, if the frequency is less than 10 kHz, it is not subject to the regulations of the Radio Law, and even if the frequency is between 10 kHz and 322 MHz, it is not subject to the regulations of the Radio Law if the field strength is less than 500 μV / m. Furthermore, it is preferable to install a radio wave shielding device consisting of a radio wave shielding body that has a radio wave shielding effect that partitions the tunnel's interior space axially, thereby isolating the inside of the tunnel as an anechoic chamber and preventing radio waves from leaking outside the tunnel.

[0034] In the illustrated example, the receiving antenna 8 is positioned at the end of the borehole 2, but it may also be positioned in the middle of the axial direction inside the borehole 2, or at the borehole opening or on the face S near the borehole 2 outside of it. Furthermore, only one receiving antenna 8 may be positioned for each borehole 2, or multiple antennas 8 may be positioned for each borehole 2, such as inside and outside the borehole 2, or one antenna may be positioned for multiple boreholes 2...

[0035] The basic configuration of the receiver 9 is to place one receiver 9 for one master die (explosive 3) loaded in one borehole 2, but it is also possible to control all the master dies (explosives 3) loaded in several adjacent boreholes 2... with one receiver 9. When one receiver 9 is placed for several boreholes 2... in this way, the receiver 9 may be placed on the face S outside the borehole 2, which is in the middle of the boreholes 2..., and lead wires may be extended from there into each borehole 2 for electrical connection, or the receiver 9 may be placed inside one borehole 2, and lead wires may be extended from there into the adjacent boreholes 2... for electrical connection.

[0036] Within the borehole 2, a detonator 11 is inserted into the tip of an explosive 3 (master die), such as a water-containing explosive, which is inserted into the deepest part of the borehole 2. The detonator 11 is detonated by a command from the detonation unit 10. One or more additional dies 12, such as water-containing explosives or ANFO explosives, are placed on the borehole side of the master die, and the borehole 2 is filled with one or more packing materials 13.

[0037] The detonation unit 10 is further provided with a light-emitting signal generator 14 that outputs a light-emitting signal in accordance with the transmitted radio waves 5 received by the receiving antenna 8, a transmission cable 15 that transmits the light-emitting signal output by the light-emitting signal generator 14 to the opening of the hole 2, and a light-emitting signal output means 17 that is located at the end of the transmission cable 15 on the opening side and outputs the light-emitting signal transmitted through the transmission cable 15 to the outside as a reply light-emitting signal 16.

[0038] The receiver 9 analyzes the transmitted radio waves 5 received by the receiving antenna 8. If the signal is a light emission command, the receiver 9 sends a command to the light emission signal generator 14 to output a light emission signal, and the light emission signal generator 14 outputs a light emission signal. The light emission signal emitted by the light emission signal generator 14 is best generated using an LED (light-emitting diode) due to its low power consumption and resistance to shock, but other known light sources such as laser light or incandescent light may also be used.

[0039] The transmission cable 15 is a long, thin, hollow cable that transmits the light-emitting signal output by the light-emitting signal generator 14, and specifically, an optical fiber can be used.

[0040] One end of the transmission cable 15 is connected to the light-emitting signal generator 14, and it has the role of transmitting the light-emitting signal emitted therein. The other end of the transmission cable 15 extends to the opening of the perforation 2, and is preferably arranged to extend from the opening of the perforation 2 towards the inside of the tunnel.

[0041] The transmission cable 15 extending from the light-emitting signal generator 14 may be routed through the interior of the borehole 2 to the borehole opening while avoiding the explosive 3, but it is preferable to route it through the inside of the explosive 3 in the axial direction to the borehole opening of the borehole 2. The explosive 3 through which the transmission cable 15 passes only needs to be a main die, but may also include extension dies.

[0042] By arranging the transmission cable 15 to extend through the inside of the explosive 3 to the opening of the perforation 2, the detonation light generated when the explosive 3 explodes through which the transmission cable 15 is inserted is transmitted through the inside of the transmission cable 15.

[0043] To place the explosive 3, through which the transmission cable 15 passes, into the borehole 2, a master die, which is pre-equipped with at least a light-emitting signal generator 14 at its tip and through which the transmission cable 15, one end of which is connected to the light-emitting signal generator 14, passes axially, can be inserted into the borehole 2 by an automatic loading device. Alternatively, to ensure that the transmission cable 15 passes through the inside of an add-on die, a through-hole that penetrates axially can be formed in the add-on die beforehand, and the add-on die can be inserted into the borehole 2 while passing the transmission cable 15 through this through-hole.

[0044] The other end of the transmission cable 15 (the end on the hole side) is simply fitted with the light-emitting signal output means 17 and is a free end positioned at the hole opening of the perforation 2 or extending from the perforation 2 towards the tunnel interior.

[0045] The light-emitting signal output means 17 is made of a translucent material that allows light-emitting signals transmitted through the transmission cable 15 to be output to the outside. Specifically, the light-emitting signal output means 17 is an optical lens, and it is preferable to use one that diffuses, diverges, or focuses the light-emitting signal as it passes through the light-emitting signal output means 17.

[0046] Furthermore, in addition to the transmitting unit 7 and the detonation unit 10, the wireless detonation system 1 is equipped with a light-emitting signal receiver 18 that receives the reply light-emitting signal 16 output from the light-emitting signal output means 17, and a light-emitting signal analyzer 19 that analyzes the reply light-emitting signal 16 received by the light-emitting signal receiver 18.

[0047] The light-emitting signal receiver 18 is installed at a location away from the tunnel face S, where it is not affected by the explosion of the explosive 3, and at a location where the entire tunnel face S can be photographed.

[0048] As the light-emitting signal receiver 18, a camera capable of capturing still images and / or video of the reply light-emitting signal 16 can be used. In particular, in a configuration in which the transmission cable 15 is passed through the inside of the explosive 3 and extended to the opening of the borehole 2, it is preferable to use a high-speed camera as the light-emitting signal receiver 18 so as to be able to capture the instantaneous detonation light transmitted through the transmission cable 15 that occurs when the explosive 3 explodes. The high-speed camera is a video camera capable of shooting at 1000fps or higher.

[0049] The light emission signal analyzer 19 is a computer that analyzes the light emission signals received by the light emission signal receiver 18. The light emission signal analyzer 19 is connected to the light emission signal receiver 18 and takes in image data captured by the light emission signal receiver 18 and performs image analysis.

[0050] Figure 3 shows an example of image data captured by the light-emitting signal receiver 18. In the example in Figure 3, among the multiple perforations 2, 2... provided in the face S, the light-emitting signal output means 17 provided in most of the perforations 2 emit light and the reply light-emitting signal 16 is received. However, the light-emitting signal output means 17 provided in two perforations 2a, 2a do not emit light and the reply light-emitting signal 16 is not received. The light-emitting signal analyzer 19 performs image analysis of the images captured by the light-emitting signal receiver 18, identifies the perforations 2a where the reply light-emitting signal 16 cannot be confirmed, and is equipped with a communication means such as a monitor or communication device to transmit this information to the worker.

[0051] The light emission signal receiving and analysis unit 20 is installed at a location away from the working face S, where it is not affected by the explosion of the explosive 3, and is preferably located adjacent to the transmitting unit 7.

[0052] The transmitter 4 of the transmission unit 7 and the light emission signal analyzer 19 of the light emission signal reception and analysis unit 20 may each be composed of separate devices, but from the viewpoint of improving the efficiency of the equipment, it is preferable to configure them as a single integrated device, as shown in Figure 1.

[0053] [Blasting method] Next, the blasting method using the wireless detonation system 1 described above will be explained based on Figure 4.

[0054] Prior to the blasting operation, a drilling process is performed to create holes 2 at the blasting design positions of the tunnel face S using a drill jumbo or the like. Then, a loading process is performed in which the detonators 10 are loaded into each of the holes 2. After that, the following blasting operation is carried out.

[0055] (1st step) In the first step, the transmitting unit 7 first starts supplying power to the detonators 10, and the detonators 10 receive this power to charge the receiver 9 and the light-emitting signal generator 14, and also activate the light-emitting signal reception and analysis unit 20. Subsequently, the transmitting unit 7 sends a light-emitting command (transmitted radio wave 5) to each detonator 10, and in response to the light-emitting command, the detonators 10 send back a light-emitting signal (reply light-emitting signal 16), and the light-emitting signal reception and analysis unit 20 detects this light-emitting signal.

[0056] In the first step, prior to blasting, the operational status of the detonator 10 is checked, including whether it can accurately emit a light signal via the transmission cable 15 and the light signal output means 17. If the return light signal 16 is not detected, the explosive 3 is reloaded or the main die is loaded.

[0057] The light emission command issued by the transmitting unit 7 may be transmitted to all detonators 10 at once, but in order to understand the transmission and reception status of each detonator 10 in more detail, it is preferable to repeat the first step sequentially, one hole at a time, from the detonator 10 loaded in the first hole to the detonator 10 loaded in the nth hole.

[0058] (2nd process) In the second step, the transmitting unit 7 emits a detonation preparation signal (transmitted radio wave 5) to each detonation unit 10, and in response to the detonation preparation signal, the detonation unit 10 sends back a light signal (reply light signal 16) indicating that detonation preparation is complete, and the light signal receiving and analysis unit 20 detects this light signal. The detonation preparation performed by the detonation unit 10 involves checking the energization status of the detonator 11 and other operational conditions necessary for detonation.

[0059] If the second step does not result in the confirmation of the reply light signal 16, the explosive 3 is reloaded or additional power is added to the main die.

[0060] (3rd step) In the third step, the transmitting unit 7 emits a detonation signal (transmitted radio wave 5) to each detonator unit 10, and the detonators 10 detonate in response to the detonation signal.

[0061] When the detonator 10 detonates, the detonation light emitted by the explosion of the explosive 3 is output to the outside through the transmission cable 15 and the light emission signal output means 17, and the occurrence of non-detonation can be confirmed by receiving this light emission signal in the light emission signal receiving and analysis unit 20. By passing the transmission cable 15 through the inside of the explosive 3, the explosion light emitted when the explosive 3 explodes can be transmitted to the outside through the transmission cable 15. [Explanation of symbols]

[0062] 1... Wireless detonation system, 2... Drilling, 3... Explosives, 4... Transmitter, 5... Transmitting radio waves, 6... Transmitting antenna, 7... Transmitting unit, 8... Receiving antenna, 9... Receiver, 10... Detonator, 11... Detonator, 12... Drill bit, 13... Packing material, 14... Light signal generator, 15... Transmission cable, 16... Reply light signal, 17... Light signal output means, 18... Light signal receiver, 19... Light signal analyzer, 20... Light signal receiving and analysis unit

Claims

1. A wireless detonation system that detonates explosives via radio communication, A transmitting unit comprising a transmitter installed at a distance from the explosive and outputting a detonation signal and signals necessary for operation, and a transmitting antenna that emits radio waves corresponding to the output signal of the transmitter, It consists of a receiving antenna inserted into a borehole formed in the bedrock to receive radio waves emitted from the transmitting antenna, and a detonation unit including a receiver that outputs a detonation signal and signals necessary for operation in response to the radio waves received by the receiving antenna. The detonation unit is provided with a light-emitting signal generator that outputs a light-emitting signal in response to radio waves received by the receiving antenna, a transmission cable that transmits the light-emitting signal output by the light-emitting signal generator to the opening of the hole, and a light-emitting signal output means located at the end of the transmission cable on the opening side that outputs the transmitted light-emitting signal to the outside. Furthermore, the wireless detonation system is characterized in that a light-emitting signal receiving and analysis unit is installed at a location away from the explosive, comprising a light-emitting signal receiver that receives the light-emitting signal output means, and a light-emitting signal analyzer that analyzes the light-emitting signal received by the light-emitting signal receiver.

2. The wireless detonation system according to claim 1, wherein the transmission cable extends through the inside of the explosive to the opening of the perforation, and the detonation light generated when the explosive explodes can be transmitted through the inside of the transmission cable.

3. The wireless detonation system according to claim 1, wherein the transmission cable is an optical fiber.

4. The wireless detonation system according to claim 1, wherein the transmitter of the transmitting unit and the light emission signal analyzer of the light emission signal receiving and analysis unit are configured as a single integrated device.

5. A blasting method using a wireless detonation system as described in any of claims 1 to 4 above, The first step involves the transmitting unit issuing a light emission command to each detonator, the detonators responding with a light emission signal, and the light emission signal receiving and analysis unit detecting the light emission signal. The second step involves the transmitting unit emitting a detonation preparation signal to each detonator, the detonators responding with a light emission signal indicating that detonation preparation is complete, and the light emission signal receiving and analysis unit detecting that light emission signal. A blasting method characterized by comprising a third step in which the transmitting unit emits a detonation signal to each detonation unit, and the detonation units detonate in response to the detonation signal.

6. The blasting method according to claim 5, wherein the detonation light emitted by the explosion of the explosive is output to the outside through the transmission cable and the light emission signal output means, and the occurrence of non-detonation can be confirmed by receiving this with the light emission signal receiving and analysis unit.

7. The blasting method according to claim 5, wherein the first step is repeated sequentially for each detonation unit.

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