Remote wireless through-the-ground remote control blasting system and blasting method based on magnetic communication

Abstract

The invention provides a remote wireless through-the-ground remote control blasting system and blasting method based on magnetic communication. The remote wireless through-the-ground remote control blasting system based on magnetic communication comprises a control center, a magnetic communication transmitter, a plurality of magnetic communication transceiving blasting machines and a plurality of magnetic communication receivers. And the control center is used for communicating with the overground magnetic communication receiver and the overground magnetic communication transmitter in a traditional wireless network mode. The magnetic communication transmitter sends an instruction to the underground magnetic communication transmit-receive blasting machine in a magnetic communication mode. The magnetic communication transceiving blasting machine receives an instruction sent by the magnetic communication transmitter and returns data to the magnetic communication receiver in a magnetic communication mode. The magnetic communication receiver receives return data of the magnetic communication transceiving blasting machine in a magnetic communication mode and sends the received return data to the control center in a traditional wireless communication mode. According to the invention, connection is realized in a wireless ad hoc network mode, so that the blasting operation efficiency is improved; the operation risk is greatly reduced; and an unexploded shot accident is avoided.

Description

Technical Field

[0001] This invention relates to the field of electronic information technology, specifically to a remote wireless through-ground remote-controlled blasting system and blasting method based on magnetic communication. Background Technology

[0002] The "14th Five-Year Plan" for the development of civilian explosives calls for the comprehensive promotion of digital electronic detonators, with a complete halt to their production by the end of June 2022 and a cessation of sales of ordinary detonators by the end of August 2022. Currently, digital electronic detonators primarily use wired or underground wired / ground wireless detonation methods. These blasting methods have many drawbacks: traditional blasting methods involve complex network setups and inspection processes, making them prone to errors and omissions in connection; broken or damaged lead wires can easily lead to misfires; blasting operations are time-consuming, network connection times are long, and micro-delay timing is inconsistent, resulting in poor blasting effects and increased workload for subsequent shoveling and loading; personnel need to frequently enter high-risk areas, leading to a lower safety factor for blasting personnel. Summary of the Invention

[0003] To overcome the aforementioned technical deficiencies, the first aspect of the present invention provides a remote wireless ground-penetrating remote-controlled blasting system based on magnetic communication, comprising:

[0004] The control center is used to aggregate the return data received by the magnetic communication receiver through a traditional wireless network, process the return data and generate instructions, and also to issue instructions to the magnetic communication transmitter to be sent through the traditional wireless network.

[0005] A magnetic communication transmitter is used to generate a magnetic field and send commands to a magnetic communication transceiver blasting machine via magnetic communication.

[0006] Several magnetic communication transceiver blasting machines are used to receive instructions sent by a magnetic communication transmitter via magnetic communication, and also to return data to a magnetic communication receiver via magnetic communication.

[0007] Several magnetic communication receivers are used to receive return data from the magnetic communication transceiver blasting machine via magnetic communication, and also to send the received return data to the control center via traditional wireless communication.

[0008] The control center, magnetic communication transmitter, and several magnetic communication receivers are all located above ground, while several magnetic communication transceiver blasting machines are located underground.

[0009] Furthermore, the magnetic communication transmitter includes a control unit, a drive unit, a loop antenna, a network antenna, a network module, a battery, a power module, a housing, and several interfaces; the network antenna is connected to the network module to receive information from the control center and then sends it to the control unit via a serial port; the drive unit is connected to the loop transmitting antenna and is used to generate a magnetic field to transmit information from the control unit.

[0010] Furthermore, the magnetic communication receiver includes a receiving unit, a rod antenna, a network antenna, a network module, a battery, a housing, and several interfaces; the receiving unit is connected to the rod antenna and is used to receive information from the magnetic communication transceiver blasting machine; the network antenna is connected to the network module and is used to transmit the information received by the receiving unit to the control center through a traditional wireless network.

[0011] Furthermore, the magnetic communication transceiver blasting machine includes a ring transmitting antenna, a rod receiving antenna, a receiving unit, a transmitting unit, an ignition control unit, an electronic detonator, a battery, and a housing; the transmitting unit is connected to the ring transmitting antenna, and the three rod antennas are perpendicular to each other and connected to the receiving unit. The transmitting unit and the receiving unit communicate with each other through a serial interface. At the same time, the receiving unit is connected to the ignition control unit through a serial port, and the ignition control unit is connected to the electronic detonator through a wire.

[0012] Furthermore, the magnetic communication transmitter, several magnetic communication receivers, and several magnetic communication transceiver blasting machines use a single frequency point for half-duplex communication, and the magnetic communication network protocol and the traditional wireless network protocol are consistent in terms of channel commands.

[0013] The second aspect of this application provides a method for remote wireless ground-penetrating remote blasting using the aforementioned magnetic communication-based remote wireless ground-penetrating remote blasting system, comprising:

[0014] Step S1: The control center sends the instructions to be transmitted by the magnetic communication transmitter to the magnetic communication transmitter via a traditional wireless network.

[0015] Step S2: The magnetic communication transmitter receives instructions via a traditional wireless network, generates a magnetic field, and sends instructions to the magnetic communication transceiver blasting machine via magnetic communication.

[0016] Step S3: The magnetic communication transceiver blasting machine receives the instructions sent by the magnetic communication transmitter via magnetic communication, processes the instructions, generates return data, and sends the return data to the magnetic communication receiver via magnetic communication.

[0017] Step S4: The magnetic communication receiver receives the returned data via magnetic communication and sends the returned data to the control center via a traditional wireless network.

[0018] Step S5: The control center receives the returned data via a traditional wireless network, processes the returned data, and generates instructions.

[0019] Furthermore, the magnetic communication transmitter, several magnetic communication receivers, and several magnetic communication transceiver blasting machines use a single frequency point for half-duplex communication, and the magnetic communication network protocol and the traditional wireless network protocol are consistent in terms of channel commands.

[0020] Furthermore, traditional wireless networks include 4G, 5G, NB-IoT, LoRa, or Wi-Fi.

[0021] Furthermore, several magnetic communication transceiver blasting machines are installed underground at intervals between each other.

[0022] Furthermore, in step S2, only after verifying that the verification command is correct will the magnetic communication transmitter send a command to the magnetic communication transceiver blasting machine via magnetic communication; and / or, in step S3, only after verifying that the verification command is correct will the magnetic communication transceiver blasting machine operate according to the command; and / or, in step S5, only after verifying that the returned data is correct will the control center process the returned data and generate a command. All verification methods in this application employ any conventional verification method in the art, and this application does not impose any particular limitation.

[0023] Compared with existing technologies, the above technical solution has the following advantages:

[0024] Magnetic communication systems use an alternating magnetic field to transmit information. Compared to wireless radio frequency signals such as shortwave, Wi-Fi, 4G, and satellite communication, magnetic signals have strong penetrating power, are unaffected by obstacles within line of sight, and can transmit to environments where radio frequency signals cannot reach. They can penetrate almost all media, such as seawater, ice, vegetation, rock strata, and reinforced concrete. This invention utilizes the cross-medium communication capability of magnetic signals to develop magnetic induction communication equipment, including a magnetic signal transmitter and receiver. Based on these devices, a cross-medium remote wireless controlled blasting system and method based on magnetic communication signals is designed. This system and method connect via a wireless self-organizing network, eliminating the need for blasting network connection and inspection, saving blasting time, and improving blasting efficiency. The use of a wireless two-way detonation method greatly reduces the chance of personnel entering high-risk areas, minimizing the risk to blasting personnel. It also avoids safety accidents caused by insufficient detonation energy or blasting network connection failures. Attached Figure Description

[0025] Figure 1 This is a remote wireless, ground-penetrating, remote-controlled blasting system based on magnetic communication signals.

[0026] Figure 2 Flowchart of the logic for sending magnetic communication information for remote-controlled blasting;

[0027] Figure 3 Flowchart of command transmission for system operation;

[0028] Figure 4 This is a schematic diagram of the structural layout of a magnetic communication transmitter;

[0029] Figure 5 A schematic diagram of the structural layout of a magnetic communication transceiver blasting machine;

[0030] Figure 6 This is a schematic diagram of the structural layout of a magnetic communication receiver. Detailed Implementation

[0031] The advantages of the present invention are further illustrated below with reference to the accompanying drawings and specific embodiments. Those skilled in the art should understand that the following detailed description is illustrative rather than restrictive and should not be construed as limiting the scope of protection of the present invention.

[0032] like Figure 1As shown, this embodiment provides a remote wireless underground controlled blasting system based on magnetic communication, comprising: a control center 10, a magnetic communication transmitter 20, multiple magnetic communication transceiver blasting machines 30, and multiple magnetic communication receivers 40. The above-ground portion consists of the magnetic communication transmitter 20, several magnetic communication receivers 40, and the control center 10. The magnetic communication transmitter 20 sends control commands and query information to the underground magnetic communication transceiver blasting machines 30. When the magnetic communication transmitter 20 uses a loop antenna with a diameter of 2-24 meters (e.g., 8 meters), the transmission distance is 400 meters, covering an area of ​​500,000 square meters. Because the antenna of the underground magnetic communication transceiver blasting machine 30 is small and the transmission distance is short, multiple magnetic communication receivers 40 can be set on the ground according to the drilling depth and distance. One magnetic communication receiver 40 can receive signals from multiple underground magnetic communication transceiver blasting machines 30. The control center 10 communicates with the magnetic communication receiver 40 and the magnetic communication transmitter 20 via traditional wireless networks (4G, 5G, NB-IoT, LoRa, Wi-Fi, etc.), and aggregates the information received by the magnetic communication transmitter 20, issuing instructions to the magnetic communication transmitter 20 as needed. The underground section employs multiple integrated magnetic communication transceiver blasting machines 30, one of which is deployed in each deep hole. These machines receive query instructions and blasting control instructions from the ground-based magnetic communication transmitter 20, and register detonator information and transmit status data to the ground-based magnetic communication receiver 40. Each magnetic communication transceiver blasting machine 30 is equipped with an antenna with a diameter of 0.10-0.30 meters (e.g., 0.26 meters), and a transmission distance of no less than 75 meters. Due to the limitation of the blasting hole diameter, the ring-shaped transmitting antenna of the underground transceiver blasting machine cannot be made large, thus limiting the transmission distance. To address the short transmission distance of underground transceiver blasting machines, multiple ground receivers and one ground transmitter are deployed, with each ground receiver corresponding to a group of underground transceivers. The ground transmitter can transmit data point-to-point, multicast, or broadcast. Each magnetic communication transceiver blasting machine 30 has a 5-bit device address and a 5-bit group address. Multicast occurs when the device address is 11111, and a group can contain up to 31 underground transceivers blasting machines. Broadcast occurs when both the device address and group address are 11111, and the system can support up to 31 groups, allowing for a maximum of 961 underground transceivers blasting machines operating simultaneously.

[0033] The logic diagram for remote-controlled explosive magnetic communication information transmission is as follows: Figure 2As shown. The wireless geomagnetic communication device uses a single frequency for half-duplex communication. To achieve reliable communication between multiple devices, a remote-controlled blasting magnetic communication network protocol is designed to enable communication between the ground magnetic communication transmitter 20, the ground magnetic communication receiver 40, and the underground magnetic communication transceiver blasting machine 30. This protocol is used to acquire equipment status and control the blasting equipment. Simultaneously, the control center 10 communicates with the ground magnetic communication receiver 40 and the ground magnetic communication transmitter 20 via a public wireless network. The magnetic communication network protocol and the public wireless network protocol maintain consistency in channel commands.

[0034] The control center 10 is used to aggregate the return data received by the magnetic communication receiver 40 via a conventional wireless network, process the return data, and generate instructions. It is also used to issue instructions to the magnetic communication transmitter 20 to be transmitted via a conventional wireless network. The magnetic communication transmitter 20 is used to generate a magnetic field and transmit instructions to the magnetic communication transceiver blasting machine 30 via magnetic communication. Several magnetic communication transceiver blasting machines 30 are used to receive instructions transmitted by the magnetic communication transmitter 20 via magnetic communication and to return data to the magnetic communication receiver 40 via magnetic communication. Several magnetic communication receivers 40 are used to receive the return data from the magnetic communication transceiver blasting machines 30 via magnetic communication and to transmit the received return data to the control center 10 via conventional wireless communication.

[0035] like Figure 3 As shown, the method for remote wireless through-ground remote blasting using the above-mentioned magnetic communication-based remote wireless through-ground remote blasting system includes steps S1-S5:

[0036] Step S1: The control center 10 sends the instructions to be transmitted by the magnetic communication transmitter 20 to the magnetic communication transmitter 20 via a traditional wireless network.

[0037] The control center 10 consists of a computer with network receiving capabilities and remote blasting system software. The control center 10 sends a command to the ground transmitter via a wireless network. The command mainly includes registering electronic detonators, testing electronic detonators, setting blasting delay and ignition blasting commands, as well as sending blasting delay query, electronic detonator status query, and system information query commands.

[0038] Step S2: The magnetic communication transmitter 20 receives instructions via a traditional wireless network, generates a magnetic field, and sends instructions to the magnetic communication transceiver blasting machine 30 via magnetic communication.

[0039] The ground-based magnetic communication transmitter 20 consists of a control unit 21, a drive unit 22, a loop antenna 23, a wireless network antenna 24, a network module 25, a battery 26 (e.g., 18V), a power module 27, a housing 28, and related interfaces (including a loop antenna interface 291, a network antenna interface 292, and a 220V power interface 293), and its structural layout is as follows: Figure 4 As shown. The drive unit 21 of the ground-based magnetic communication transmitter 20 is connected to the loop antenna 23 to generate a magnetic field to transmit information from the control unit 21; the wireless network antenna 24 is connected to the network module 25 to receive information from the control center 10 and then transmits it to the control unit 21 via a serial port; the device can be powered by either the battery inside the chassis or by 220V AC mains power. The power module 27 converts the 220V AC mains power into DC power to power the device and simultaneously charges the battery.

[0040] Preferably, the magnetic communication transmitter 20 receives instructions from the control center 10 and verifies the data; the magnetic communication transmitter 20 then transmits the correctly verified received instructions as magnetic signals.

[0041] Step S3: The magnetic communication transceiver blasting machine 30 receives the instructions sent by the magnetic communication transmitter 20 via magnetic communication, processes the instructions, generates return data, and sends the return data to the magnetic communication receiver 40 via magnetic communication.

[0042] The underground magnetic communication transceiver blasting machine 30 consists of a ring transmitting antenna 31, a rod receiving antenna 32, a receiving unit 33, a transmitting unit 34, an ignition control unit 35, an electronic detonator 36, a 9V battery 37, and a casing 38, with the following structural layout: Figure 5 As shown, the transmitting unit 31 of the underground magnetic communication transceiver blasting machine 30 is connected to the ring transmitting antenna 31, and three rod-shaped receiving antennas 32 are perpendicularly connected to the receiving unit 33. The transmitting unit 34 and the receiving unit 33 communicate through a serial interface. At the same time, the receiving unit 33 is connected to the ignition control unit 35 through a serial port. The ignition control unit 35 is connected to the electronic detonator 36 through a wire. Four 9-volt alkaline batteries 37 are connected in parallel to power the equipment.

[0043] Preferably, the underground magnetic communication transceiver blasting machine 30 receives magnetic signals from the surface magnetic communication transmitter 20 and verifies the data. The magnetic communication transceiver blasting machine 30 performs corresponding operations according to instructions and generates return data. The underground magnetic communication transceiver blasting machine 30 calculates the return data time based on the information transmission type. If the received data is point-to-point, it immediately returns the instruction information; if the received data is multicast, it waits (5 * device address) seconds before returning the instruction information; if the received data is broadcast, it waits (31 * 5 * group address + 5 * device address) seconds before returning the instruction information. The magnetic communication transceiver blasting machine 30 transmits the returned data information as a magnetic signal.

[0044] Step S4: The magnetic communication receiver 40 receives the returned data via magnetic communication and sends the returned data to the control center 10 via a traditional wireless network.

[0045] The ground-based magnetic communication receiver 40 consists of a receiving unit 41, a rod-shaped receiving antenna 42, a network antenna 43, a network module 44, a 9V battery 45, a housing 46, and related interfaces (rod antenna interface 471 and network antenna interface 472), with the following structural layout: Figure 6 As shown. The receiving unit 41 of the ground magnetic communication receiver 40 is connected to the rod-shaped receiving antenna 42 to receive information from the underground blasting equipment; the network antenna 43 is connected to the network module 44 to send the information received by the receiving unit 41 to the control center 10 through the network; four 9-volt alkaline batteries 45 are connected in parallel to power the equipment.

[0046] The ground-based magnetic communication receiver 40 receives magnetic signals from the underground magnetic communication transceiver blasting machine 30 via a rod-shaped receiving antenna 42 and a receiving unit 41; the network module 44 and network antenna 43 of the ground-based magnetic communication receiver 40 transmit the received signals to the control center 10 via a wireless network.

[0047] Step S5: Control center 10 receives the returned data via traditional wireless network, processes the returned data, and generates instructions.

[0048] The control center 10 receives return information from the magnetic communication receiver 40, including whether the transmission command was successful, the result of the detonation delay query, and the result of the electronic detonator status (registration, testing, detonation) query. The control center 10 verifies and judges the received data. If the data is correct, it is processed; if it is incorrect, it is retransmitted as appropriate. All verification methods in this application adopt any conventional verification method in the art, and this application does not impose any particular limitation.

[0049] In summary, specifically, the principle of remote ground-penetrating blasting based on magnetic communication is as follows: The loop antenna 23 of the magnetic communication transmitter 20 sends the blasting command from the control center 10 to the three rod-shaped receiving antennas 32 of the magnetic communication transceiver blasting machine 30 via magnetic communication. The three rod-shaped receiving antennas 32 are perpendicular to each other and connected to the receiving unit 33. The receiving unit 33 and the transmitting unit 34 communicate through a serial interface. At the same time, the receiving unit 33 is connected to the ignition control unit 35 via a serial port. The ignition control unit 35 is connected to the electronic detonator 36 via a wire for blasting. The transmitting unit 34 is connected to the loop transmitting antenna 31. The loop transmitting antenna 31 sends information such as detonator information and blasting results to the rod-shaped antenna 42 of the magnetic communication receiver 40 via magnetic communication. Then, the network module 44 and network antenna 43 of the magnetic communication receiver 40 on the ground send the received signal to the control center 10 via a wireless network.

[0050] It should be noted that the embodiments of the present invention have better implementability and are not intended to limit the present invention in any way. Any person skilled in the art may use the above-disclosed technical content to change or modify it into equivalent effective embodiments. However, any modifications or equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A remote wireless through-ground controlled blasting system based on magnetic communication, characterized in that, include: The control center is used to aggregate the return data received by the magnetic communication receiver through a traditional wireless network, process the return data and generate instructions, and also to issue instructions to the magnetic communication transmitter to be sent through the traditional wireless network. A magnetic communication transmitter is used to generate a magnetic field and send commands to a magnetic communication transceiver blasting machine via magnetic communication. Several magnetic communication transceiver blasting machines are used to receive instructions sent by a magnetic communication transmitter via magnetic communication, and also to return data to a magnetic communication receiver via magnetic communication. Several magnetic communication receivers are used to receive return data from the magnetic communication transceiver blasting machine via magnetic communication, and also to send the received return data to the control center via traditional wireless communication. The control center, magnetic communication transmitter, and several magnetic communication receivers are all located above ground, while several magnetic communication transceiver blasting machines are located underground.

2. The remote wireless ground-penetrating remote-controlled blasting system based on magnetic communication as described in claim 1, characterized in that, The magnetic communication transmitter includes a control unit, a drive unit, a loop antenna, a network antenna, a network module, a battery, a power module, a housing, and several interfaces. The network antenna is connected to the network module to receive information from the control center and then sends it to the control unit via a serial port. The drive unit is connected to the loop transmitting antenna and is used to generate a magnetic field to transmit information from the control unit.

3. The remote wireless ground-penetrating remote-controlled blasting system based on magnetic communication as described in claim 1, characterized in that, The magnetic communication receiver includes a receiving unit, a rod antenna, a network antenna, a network module, a battery, a housing, and several interfaces; the receiving unit is connected to the rod antenna and is used to receive information from the magnetic communication transceiver blasting machine; the network antenna is connected to the network module and is used to transmit the information received by the receiving unit to the control center through a traditional wireless network.

4. The remote wireless ground-penetrating remote-controlled blasting system based on magnetic communication as described in claim 1, characterized in that, The magnetic communication transceiver blasting machine includes a ring transmitting antenna, a rod receiving antenna, a receiving unit, a transmitting unit, an ignition control unit, an electronic detonator, a battery, and a housing. The transmitting unit is connected to the ring transmitting antenna, and the three rod antennas are perpendicular to each other and connected to the receiving unit. The transmitting unit and the receiving unit communicate with each other through a serial interface. At the same time, the receiving unit is connected to the ignition control unit through a serial port, and the ignition control unit is connected to the electronic detonator through a wire.

5. The remote wireless ground-penetrating remote-controlled blasting system based on magnetic communication as described in any one of claims 1-4, characterized in that, The magnetic communication transmitter, several magnetic communication receivers, and several magnetic communication transceiver blasting machines use a single frequency point for half-duplex communication. The magnetic communication network protocol and the traditional wireless network protocol are consistent in terms of channel commands.

6. A method for remote wireless through-ground remote blasting using the magnetic communication-based remote wireless through-ground remote blasting system according to any one of claims 1-5, characterized in that, include: Step S1: The control center sends the instructions to be transmitted by the magnetic communication transmitter to the magnetic communication transmitter via a traditional wireless network. Step S2: The magnetic communication transmitter receives instructions via a traditional wireless network, generates a magnetic field, and sends instructions to the magnetic communication transceiver blasting machine via magnetic communication. Step S3: The magnetic communication transceiver blasting machine receives the instructions sent by the magnetic communication transmitter via magnetic communication, processes the instructions, generates return data, and sends the return data to the magnetic communication receiver via magnetic communication. Step S4: The magnetic communication receiver receives the returned data via magnetic communication and sends the returned data to the control center via a traditional wireless network. Step S5: The control center receives the returned data via a traditional wireless network, processes the returned data, and generates instructions.

7. The method as described in claim 6, characterized in that, The magnetic communication transmitter, several magnetic communication receivers, and several magnetic communication transceiver blasting machines use a single frequency point for half-duplex communication. The magnetic communication network protocol and the traditional wireless network protocol are consistent in terms of channel commands.

8. The method as described in claim 6, characterized in that, Traditional wireless networks include 4G, 5G, NB-IoT, LoRa, or Wi-Fi.

9. The method as described in claim 6, characterized in that, Several magnetic communication transceiver blasting machines are installed underground at intervals.

10. The method according to any one of claims 6-9, characterized in that, In step S2, the magnetic communication transmitter will send a command to the magnetic communication transceiver blasting machine via magnetic communication only after the verification command is correct; and / or, in step S3, the magnetic communication transceiver blasting machine will operate according to the command only after the verification command is correct; and / or, in step S5, the control center will process the returned data and generate a command only after the verification return data is correct.

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