Control system for receiving end of electronic detonator capable of wireless through-the-earth initiation and initiation method for receiving end of electronic detonator capable of wireless through-the-earth initiation

Abstract

A control system for a receiving end of an electronic detonator capable of wireless through-the-earth initiation, comprising: a wireless communication module, used to acquire, by means of a ferrite rod antenna, a low-frequency electromagnetic wave instruction sent by a remote signal sending end, perform signal demodulation on the acquired low-frequency electromagnetic wave instruction, and convert the low-frequency electromagnetic wave instruction into a digital signal by means of A / D conversion; and a first control module, used to receive the digital signal fed back by the wireless communication module, compare, on the basis of a pre-stored verification code, the fed back digital signal and the verification code, determine that the digital signal is a verification code corresponding to charging or a verification code corresponding to initiation, control a power supply module to charge an electronic detonator if the verification code is a verification code corresponding to charging, and control the electronic detonator to perform an initiation operation if the verification code is a verification code corresponding to initiation.

Description

A control system and a detonation method of a receiving end of a wireless through-earth detonation electronic detonator

[0001] Cross-reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 2024112423068, filed on September 5, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of electronic detonators, in particular to a control system and a detonation method of a receiving end of a wireless through-earth detonation electronic detonator. BACKGROUND

[0004] With the wide application of wired electronic detonators in civil fields such as mine exploitation and building demolition, problems such as complex network connection, short connection, missed connection, and inability to realize organic connection with intelligent equipment of wired electronic detonators gradually emerge. These problems not only increase the complexity of operation, but also reduce work efficiency and safety. In order to overcome these shortcomings, research institutions and enterprises at home and abroad have begun to explore the design and application of wireless electronic detonators and their control systems.

[0005] Although the wireless electronic detonators in the related art aim to simplify the operation process, there are still certain limitations. In actual application, when detonating, these wireless electronic detonators usually need to connect the electronic detonator in the blast hole to the signal receiving end placed beside the blast hole through physical connection. The operator then transmits a high-frequency detonation command to the signal receiving end beside the blast hole through a relay base station to detonate the electronic detonator in the hole. However, this method still has the following main problems:

[0006] Although the concept of wireless detonation is adopted, physical connection between the electronic detonator and the signal receiving end still exists, which not only increases the complexity of operation, but also may cause detonation failure due to connection failure; and in an open environment, due to the existence of a large number of electromagnetic signal interferences, the transmission of the high-frequency detonation command may be affected, resulting in misfire or misfire of the electronic detonator, which seriously reduces the reliability and safety of the system. SUMMARY

[0007] One of the purposes of the present disclosure is to provide a control system and a detonation method of a receiving end of a wireless through-earth detonation electronic detonator, which can solve the problems of wired connection of the signal receiving end of the wireless electronic detonator in the related art and complex operation, and improve the safety and reliability of the electronic detonator in a wireless state.

[0008] In order to achieve the above purpose, the control system of the receiving end of the wireless through-earth detonation electronic detonator provided by the embodiments of the present disclosure comprises a first control module, a wireless communication module, an encoding setting module and a power supply module:

[0009] The coding setting module is configured to set the coding of the blast hole and place the electronic detonator into the corresponding blast hole after the coding of the blast hole is set.

[0010] The wireless communication module is configured to acquire the low-frequency electromagnetic wave instruction sent by the remote signal sending end through the magnetic rod antenna after the electronic detonator is placed into the blast hole, demodulate the acquired low-frequency electromagnetic wave instruction, convert the corresponding low-frequency electromagnetic wave instruction into a corresponding digital signal through A / D conversion, and feed back the digital signal to the first control module, wherein the low-frequency electromagnetic wave instruction includes a low-frequency electromagnetic wave charging instruction and a low-frequency electromagnetic wave detonation instruction.

[0011] The first control module is configured to receive the digital signal fed back by the wireless communication module, compare the fed-back digital signal with the pre-stored verification code based on the pre-stored verification code, determine whether the fed-back digital signal is a charging corresponding verification code or a detonation corresponding verification code, control the power module to charge the electronic detonator based on the fed-back digital signal being the charging corresponding verification code, and control the electronic detonator to perform a detonation operation based on the fed-back digital signal being the detonation corresponding verification code.

[0012] The technical principle of the scheme provided by the embodiments of the present disclosure is as follows:

[0013] In the scheme provided by the embodiments of the present disclosure, the coding setting module is first used to set the coding of the blast hole, so as to realize accurate control of the electronic detonator in each blast hole.

[0014] Then, the magnetic rod antenna in the wireless communication module is used to receive the low-frequency electromagnetic wave instruction sent by the remote signal sending end, wherein the low-frequency electromagnetic wave instruction includes a low-frequency electromagnetic wave charging instruction and a low-frequency electromagnetic wave detonation instruction. The low-frequency electromagnetic wave instruction is also subjected to A / D conversion to complete the conversion of the corresponding analog signal to a digital signal, and the first time feedback is given to the first control module.

[0015] After the first control module receives the digital signal fed back by the wireless communication module, the fed-back digital signal is compared with the verification codes in the verification code set one by one based on the pre-stored verification code set, to determine whether the fed-back digital signal (i.e., the fed-back verification code) is a charging corresponding verification code or a detonation corresponding verification code. The power module is controlled to charge the electronic detonator based on the fed-back digital signal being the charging corresponding verification code, and the electronic detonator is controlled to perform a detonation operation based on the fed-back digital signal being the detonation corresponding verification code.

[0016] The control system of the wireless through-earth detonation electronic detonator receiving end provided by the embodiments of the present disclosure at least achieves the following technical effects:

[0017] 1. Through the setting of the wireless communication module, the corresponding low-frequency electromagnetic wave instructions sent by the remote signal sending end are received by using the magnetic rod antenna, and wireless communication in the underground environment is realized through the conversion of the instructions, which overcomes the limitations of traditional wired communication under complex geological conditions and ensures the accuracy of signal transmission and the safety and controllability of the detonation process. This design can effectively avoid misfires and other safety accidents.

[0018] 2. The dial switch allows users to configure different parameters according to specific needs, such as borehole coding settings, thereby realizing a more flexible control method. This is very useful for distinguishing and managing multiple detonators operating in parallel.

[0019] 3. The instructions received by the wireless communication module are low-frequency electromagnetic wave charging instructions and low-frequency electromagnetic wave detonation instructions, which can solve technical problems such as electromagnetic interference, attenuation, and path loss in wireless signal transmission, and realize wireless communication over 50m in the air domain and over 10m in complex rock structures containing water, cracks, and metal ore.

[0020] In some embodiments, the control system further includes a warning module for real-time monitoring of the remaining power of the power module (also referred to as "battery module"), and when the remaining power of the power module is less than a preset remaining threshold, a first alarm signal is sent.

[0021] The beneficial effects of this scheme are: the setting of the warning module ensures that the remaining power of the power module can meet the detonation of the corresponding electronic detonator when the power module is used, thereby improving the reliability of the detonation of the electronic detonator.

[0022] In some embodiments, the warning module is further configured to monitor the real-time power of the power module when charging the power module, and when the real-time power reaches a preset threshold, a second alarm signal is sent.

[0023] The beneficial effects of this scheme are: the power module needs to be adsorbed before the electronic detonator is placed in the borehole, so that the power of the power module can reach the preset threshold, such as full charge, and by monitoring the real-time power of the power module, the power module can be prevented from being used for detonation before it is fully charged, thereby avoiding problems such as detonation failure, thereby greatly improving the detonation reliability and accuracy of the electronic detonator.

[0024] The present disclosure also provides a detonation method of a wireless through-earth detonation electronic detonator receiving end, comprising the following steps:

[0025] S1, setting the borehole code through the coding setting module, and placing the electronic detonator in the corresponding borehole after completing the borehole code setting;

[0026] S2, after the electronic detonator is put into the blast hole, a low-frequency electromagnetic wave instruction sent by a remote signal sending end is acquired through a magnetic rod antenna in the wireless communication module, the acquired low-frequency electromagnetic wave instruction is signal demodulated, the corresponding low-frequency electromagnetic wave instruction is converted into a corresponding digital signal through A / D conversion, and the corresponding digital signal is fed back to the first control module, wherein the low-frequency electromagnetic wave instruction includes a low-frequency electromagnetic wave charging instruction and a low-frequency electromagnetic wave initiation instruction;

[0027] S3, the first control module receives the corresponding digital signal, compares the received digital signal with a pre-stored verification code based on the pre-stored verification code, judges whether the received digital signal is a charging corresponding verification code or an initiation corresponding verification code, controls the power module to charge the electronic detonator based on that the received digital signal is the charging corresponding verification code, and controls the electronic detonator to perform an initiation operation based on that the received digital signal is the initiation corresponding verification code.

[0028] The technical principle of the scheme provided by the embodiment of the disclosure is that: in the scheme provided by the embodiment of the disclosure, first, the accurate control of the electronic detonator in each blast hole is realized by setting the blast hole code.

[0029] Then, the low-frequency electromagnetic wave instruction is received through the magnetic rod antenna in the wireless communication module, the low-frequency electromagnetic wave instruction is sent by a remote signal sending end, the low-frequency electromagnetic wave instruction includes a low-frequency electromagnetic wave charging instruction and a low-frequency electromagnetic wave initiation instruction, and the low-frequency electromagnetic wave instruction is also A / D converted to complete the conversion of the corresponding analog signal to the digital signal and feed back to the first control module at the first time.

[0030] After receiving the digital signal fed back by the wireless communication module, the first control module compares the fed back digital signal with the verification code in the verification code set one by one based on the pre-stored verification code set, judges whether the fed back digital signal (that is, the fed back verification code) is a charging corresponding verification code or an initiation corresponding verification code, controls the power module to charge the electronic detonator based on that the fed back digital signal is the charging corresponding verification code, and controls the electronic detonator to perform an initiation operation based on that the fed back digital signal is the initiation corresponding verification code.

[0031] The initiation method of the wireless through-hole initiation electronic detonator receiving end provided by the embodiment of the disclosure at least realizes the following technical effects:

[0032] The low-frequency electromagnetic wave instructions sent by the remote signal sending end are received through the setting of the wireless communication module, wireless communication in the underground environment is realized through the conversion of the instructions, the limitations of traditional wired communication under complex geological conditions are overcome, and the accuracy of signal transmission and the safety and controllability of the detonation process are ensured. This design can effectively avoid misfires and other safety accidents.

[0033] In some embodiments, the method further comprises:

[0034] S4, the remaining power of the power module is monitored in real time, and when the remaining power of the power module is less than a preset remaining threshold, a first alarm signal is sent.

[0035] In some embodiments, the method further comprises:

[0036] S5, when charging the power module, the real-time power of the power module is monitored, and when the real-time power reaches a preset threshold, a second alarm signal is sent. BRIEF DESCRIPTION OF DRAWINGS

[0037] Fig. 1 is a logic block diagram of the control system of the wireless through-hole detonation electronic detonator receiving end in Embodiment One of the present disclosure;

[0038] Fig. 2 is a schematic diagram of the electronic detonator receiving end in Embodiment One of the present disclosure;

[0039] Fig. 3 is a schematic diagram of the electronic detonator detonation end in Embodiment One of the present disclosure;

[0040] Fig. 4 is a flowchart of the detonation method of the wireless through-hole detonation electronic detonator receiving end in Embodiment One of the present disclosure. DETAILED DESCRIPTION

[0041] The following will be further described in detail through specific embodiments:

[0042] Embodiment One

[0043] A control system of a wireless through-hole detonation electronic detonator receiving end, substantially as shown in Fig. 1, comprises a first control module, a wireless communication module, an encoding setting module and a power module;

[0044] The encoding setting module is used for setting the blast hole encoding, and placing the electronic detonator into the corresponding blast hole after completing the blast hole encoding setting;

[0045] The wireless communication module is configured to acquire a low-frequency electromagnetic wave instruction sent by a remote signal sending end through a magnetic rod antenna after the electronic detonator is placed in a blast hole, and perform signal demodulation on the acquired low-frequency electromagnetic wave instruction, and convert the corresponding low-frequency electromagnetic wave instruction into a corresponding digital signal through A / D conversion, and feed back to the first control module, wherein the low-frequency electromagnetic wave instruction includes a low-frequency electromagnetic wave charging instruction and a low-frequency electromagnetic wave detonation instruction.

[0046] The first control module is configured to receive the digital signal fed back by the wireless communication module, and compare the fed-back digital signal with a pre-stored verification code based on the pre-stored verification code, determine whether the pre-stored verification code is a charging corresponding verification code or a detonation corresponding verification code, control the power module to charge the electronic detonator based on that the fed-back digital signal is the charging corresponding verification code, and control the electronic detonator to perform a detonation operation based on that the fed-back digital signal is the detonation corresponding verification code.

[0047] In the embodiments of the present disclosure, the electronic detonator includes an electronic detonator receiving end and an electronic detonator detonation end. Specifically, the electronic detonator receiving end includes a corresponding first control module, a wireless communication module, a coding setting module and a power module, and the electronic detonator detonation end includes a second control module and an ignition module. As shown in FIGS. 2 and 3, the specific circuit structure is as follows:

[0048] The first control module includes a first single-chip microcomputer, an input end of the first single-chip microcomputer is connected with the wireless communication module and the power module respectively, and an output end of the first single-chip microcomputer is connected with a voltage boosting circuit;

[0049] The voltage boosting circuit includes a third resistor connected with the output end of the first single-chip microcomputer, another end of the third resistor is connected with a gate of a first MOS transistor, a source of the first MOS transistor is grounded, a drain of the first MOS transistor is connected with a fourth resistor and an anode of a third diode simultaneously, a cathode of the third diode and another end of the fourth resistor are connected with a first switch simultaneously, another end of the first switch is connected with an inductor and a source of a second MOS transistor respectively, another end of the inductor is connected with a fifth resistor, another end of the fifth resistor is connected with a gate of the second MOS transistor, a drain of the second MOS transistor is connected with an input end of the inductor, and an output end of the inductor is connected with the second control module of the electronic detonator detonation end.

[0050] The second control module comprises a first resistor connected with the output end of the inductor and a second resistor connected with the output end of the first single-chip microcomputer, a bidirectional breakdown third diode and a bridge rectifier circuit are arranged in parallel between the first resistor and the second resistor; two alternating current output ends of the bridge rectifier circuit are connected with the first resistor and the second resistor respectively, and two direct current output ends of the bridge rectifier circuit are connected with two input ends of the second single-chip microcomputer of the second control module;

[0051] A second switch, a fourth diode, a third resistor, a fourth resistor, a third switch, a fuse and a first capacitor are arranged between two output ends of the second single-chip microcomputer; the second switch, the fourth diode, the third resistor and the first capacitor are sequentially connected in series, the first capacitor is connected in parallel with the fourth resistor and the third switch arranged in series, the fuse is connected in parallel with the third switch, and a fire powder is arranged on the fuse.

[0052] The wireless communication module comprises a third single-chip microcomputer, a second capacitor and a magnetic rod antenna are sequentially connected with the input end of the third single-chip microcomputer, the output end of the third single-chip microcomputer is connected with the input end of the first single-chip microcomputer, and the third single-chip microcomputer is electrically connected with the power module. For example, the first controller is used for setting the blast hole code through the code switch and setting the blasting parameters in the first single-chip microcomputer through the communication interface and other external devices. Then, the whole electronic detonator is placed in the blast hole, the magnetic rod antenna receives a low-frequency electromagnetic wave charging signal instruction, the third single-chip microcomputer in the wireless communication module demodulates the low-frequency electromagnetic wave charging signal instruction, converts the corresponding analog signal into a digital signal through A / D conversion, and then communicates with the first single-chip microcomputer in the control module. After receiving the corresponding digital signal, the first single-chip microcomputer judges whether to charge, if yes, the first single-chip microcomputer outputs a high level through the output end, the third diode is opened, the first switch is attracted, the normally open contact is demodulated, the boost circuit is turned on to boost, and the second switch is opened, so that the boost current charges the first capacitor through the first resistor, the fourth diode and the third resistor. Then, the magnetic rod antenna receives a corresponding low-frequency electromagnetic wave initiation signal instruction, the third single-chip microcomputer in the wireless communication module demodulates the low-frequency electromagnetic wave initiation signal instruction, converts the corresponding analog signal into a digital signal through A / D conversion, and then communicates with the first single-chip microcomputer in the control module. After receiving the corresponding digital signal, the first single-chip microcomputer judges whether to initiate, if yes, the first single-chip microcomputer counts through the delay module carried by itself, for example, 100 ms, and then the first single-chip microcomputer outputs a low level through the output end after reaching the preset time, and opens the first switch, so that the first capacitor discharges, the fuse ignites the fire powder, thereby realizing the initiation of the electronic detonator.

[0053] Of course, if the first capacitor has completed charging, the discharge instruction is accepted, the third switch is opened, the energy on the first capacitor is released, and the detonation operation is realized.

[0054] In some embodiments, the control system further comprises a pre-warning module for monitoring the remaining power of the battery module in real time, and issuing a first warning signal when the remaining power of the battery module is less than a preset remaining threshold.

[0055] In some embodiments, the pre-warning module is further configured to monitor the real-time power of the battery module when charging the battery module, and issue a second warning signal when the real-time power reaches a preset threshold.

[0056] As shown in FIG. 4, the present disclosure also provides a detonation method of a wireless through-earth detonation electronic detonator receiving end, comprising the following steps:

[0057] S1, setting the hole code through the coding setting module, and placing the electronic detonator into the corresponding hole after completing the hole code setting;

[0058] S2, after the electronic detonator is placed into the hole, the low-frequency electromagnetic wave instruction sent by the remote signal sending end is acquired through the magnetic rod antenna in the wireless communication module, the acquired low-frequency electromagnetic wave instruction is signal demodulated, the corresponding low-frequency electromagnetic wave instruction is converted into a corresponding digital signal through A / D conversion, and the first control module is fed back, wherein the low-frequency electromagnetic wave instruction includes a low-frequency electromagnetic wave charging instruction and a low-frequency electromagnetic wave detonation instruction;

[0059] S3, receiving the corresponding digital signal through the first control module, comparing the received digital signal with the pre-stored verification code based on the pre-stored verification code, judging whether the received digital signal is a charging corresponding verification code or a detonation corresponding verification code, controlling the power module to charge the electronic detonator based on the received digital signal being the charging corresponding verification code, and controlling the electronic detonator to detonate based on the received digital signal being the detonation corresponding verification code.

[0060] In some embodiments, the method further comprises:

[0061] S4, monitoring the remaining power of the power module in real time, and issuing a first warning signal when the remaining power of the power module is less than a preset remaining threshold.

[0062] In some embodiments, the method further comprises:

[0063] S5, monitoring the real-time power of the power module when charging the power module, and issuing a second warning signal when the real-time power reaches a preset threshold.

[0064] The above are only embodiments of the present disclosure, and the common knowledge of the specific structure and characteristics in the scheme is not described too much, and the ordinary skilled person in the art knows all the ordinary technical knowledge in the technical field before the application date or the priority date, can know all the prior art in the field, and has the ability to apply the conventional experimental means before the date, and the ordinary skilled person in the art can improve and implement the scheme under the inspiration given by the present application, and some typical known structures or known methods should not become an obstacle for the ordinary skilled person in the art to implement the present application.

[0065] It should be pointed out that for those skilled in the art, without departing from the structure of the present disclosure, a number of modifications and improvements can also be made, which should also be considered as the protection scope of the present disclosure, which will not affect the effect and practicality of the patent. The scope of protection claimed in the present application shall be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A control system of a receiving end of a wireless through-earth detonation electronic detonator, comprising a first control module, a wireless communication module, an encoding setting module and a power supply module; The encoding setting module is configured to set a blast hole code and place the electronic detonator into a corresponding blast hole after the setting of the blast hole code is completed. The wireless communication module is configured to acquire a low-frequency electromagnetic wave instruction sent by a remote signal sending end through a magnetic rod antenna after the electronic detonator is placed into the blast hole, demodulate the acquired low-frequency electromagnetic wave instruction, convert the corresponding low-frequency electromagnetic wave instruction into a corresponding digital signal through A / D conversion, and feed back the corresponding digital signal to the first control module, wherein the low-frequency electromagnetic wave instruction comprises a low-frequency electromagnetic wave charging instruction and a low-frequency electromagnetic wave detonation instruction. The first control module is configured to receive the digital signal fed back by the wireless communication module, compare the fed-back digital signal with a pre-stored verification code based on the pre-stored verification code, determine whether the fed-back digital signal is a charging corresponding verification code or a detonation corresponding verification code, control the power supply module to charge the electronic detonator based on the fed-back digital signal being the charging corresponding verification code, and control the electronic detonator to perform a detonation operation based on the fed-back digital signal being the detonation corresponding verification code. 2.The control system of the receiving end of the wireless through-earth detonation electronic detonator according to claim 1, further comprising a pre-warning module configured to monitor a remaining power of the power supply module in real time and send a first alarm signal when the remaining power of the power supply module is less than a pre-set remaining threshold.

3. The control system of the receiving end of the wireless through-earth initiation electronic detonator according to claim 2, characterized in that: The pre-warning module is further configured to monitor a real-time power of the power supply module when the power supply module charges the electronic detonator, and send a second alarm signal when the real-time power reaches a pre-set threshold. 4.A detonation method of a receiving end of a wireless through-earth detonation electronic detonator, comprising the following steps: S1.Setting a blast hole code through an encoding setting module and placing an electronic detonator into a corresponding blast hole after the setting of the blast hole code is completed. S2.Acquiring a low-frequency electromagnetic wave instruction sent by a remote signal sending end through a magnetic rod antenna in a wireless communication module after the electronic detonator is placed into the blast hole, demodulating the acquired low-frequency electromagnetic wave instruction, converting the corresponding low-frequency electromagnetic wave instruction into a corresponding digital signal through A / D conversion, and feeding back the corresponding digital signal to a first control module, wherein the low-frequency electromagnetic wave instruction comprises a low-frequency electromagnetic wave charging instruction and a low-frequency electromagnetic wave detonation instruction. S3.Receiving the corresponding digital signal through the first control module, comparing the received digital signal with a pre-stored verification code based on the pre-stored verification code, determining whether the received digital signal is a charging corresponding verification code or a detonation corresponding verification code, controlling a power supply module to charge the electronic detonator based on the received digital signal being the charging corresponding verification code, and controlling the electronic detonator to perform a detonation operation based on the received digital signal being the detonation corresponding verification code. 5.The detonation method of the receiving end of the wireless through-earth detonation electronic detonator according to claim 4, further comprising: S4, real-time monitoring of the residual power of the power module, and when the residual power of the power module is less than a preset residual threshold, a first alarm signal is sent out.

6. The detonation method of the receiving end of the wireless through-earth detonation electronic detonator according to claim 4 or 5, further comprising: S5, when charging the power module, the real-time power of the power module is monitored, and when the real-time power reaches a preset threshold, a second alarm signal is sent out.

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