High-power multi-channel independent delay detonation control system and method

Abstract

The invention discloses a high-power multi-channel independent delay detonation control system which comprises a main controller, the main controller is connected with an integrated cabinet, a battery pack module, an inverter module and a rectifier module are arranged in the integrated cabinet, and a controller module, the battery pack module, the inverter module, the rectifier module and the controller module are connected in sequence; a heat dissipation system is arranged in the integrated cabinet, and the controller module is connected with an ignition device in the blast hole. The invention further discloses a high-power multi-channel independent delay detonating control method, the problems that existing detonating equipment is short in discharging time, small in discharging current, low in discharging power and few in output channel are solved, and the high-power multi-channel independent delay detonating control method can be widely applied to bursting balloons and detonating fireworks and crackers. And the device can also be used as detonating equipment for an explosive blasting technology, a carbon dioxide blasting technology and a liquid oxygen rock breaking technology.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of detonation equipment, and particularly relates to a high-power multi-channel independent delay detonation control system and a high-power multi-channel independent delay detonation control method. BACKGROUND

[0002] In rock breaking operations such as mine exploitation, tunnel excavation, building demolition, etc., the detonator as the core equipment directly affects the blasting effect and operation safety. The existing detonation equipment has the characteristics of short discharge time, small discharge current, low discharge power and few output channels, which is more friendly to ignition devices containing explosive dangerous goods such as detonator and electronic match, but cannot be adapted to ignition devices not containing explosive dangerous goods, such as resistance wire ignition device.

[0003] Therefore, there is an urgent need for a delay segmented detonation device with long discharge time, moderate discharge current, large discharge power and multiple output channels, which can not only solve the ignition requirements of resistance wire ignition devices not containing explosive dangerous goods, but also be widely applicable to the ignition requirements of ignition devices containing explosive dangerous goods such as detonator and electronic match. SUMMARY

[0004] An object of the present application is to provide a high-power multi-channel independent delay detonation control system with long discharge time, large output power, multiple output channels, high delay precision and wide application range.

[0005] Another object of the present application is to provide a high-power multi-channel independent delay detonation control method.

[0006] One technical solution adopted by the present application is a high-power multi-channel independent delay detonation control system, which comprises a main controller, the main controller sends detonation instructions to the whole system, the main controller is connected with an integrated cabinet, a battery pack module, an inverter module, a rectifier module and a controller module are arranged in the integrated cabinet, and the battery pack module, the inverter module, the rectifier module and the controller module are connected in sequence; a heat dissipation system is arranged inside the integrated cabinet, and the controller module is connected with an ignition device in a blasting hole.

[0007] The invention is further characterized in that the battery pack module includes a battery pack, the inverter module includes several inverters, the rectifier module includes several rectifiers, and the controller module includes several controllers. The battery pack is connected in parallel with several inverters via wires, and each inverter is connected to a corresponding rectifier, which in turn is connected to a corresponding controller. The output of the battery pack is connected to the inverter, which converts the low-voltage DC power output from the battery pack into high-voltage AC power. The output of the inverter is connected to the rectifier, which converts the high-voltage AC power output from the inverter into high-voltage DC power. The output of the rectifier is connected to the controller, and the controller's output channel delivers the high-voltage DC power output from the rectifier to each blast hole, where an ignition device is installed. The main controller and the integrated cabinet are connected via communication cables.

[0008] The integrated cabinet is equipped with adjustable casters around the bottom, and each caster has a fixed support foot on its outer side; handles are installed on both sides of the top of the integrated cabinet; the cabinet door is equipped with a safety lock; and several ventilation holes are provided on the side walls of the integrated cabinet, with a dustproof screen installed on each ventilation hole.

[0009] The battery pack module also includes a power monitoring module and an LED display screen, which displays the battery pack's power status in real time.

[0010] Each inverter input terminal has a cross-sectional area of ​​not less than 6mm². 2 The copper core cable is connected to the output terminal of the battery pack; the inverter converts the 48V low-voltage DC power output from the battery pack into a high-voltage AC power output of 48V~280V; the output power of a single inverter is not less than 3KW, the output voltage fluctuation range is ±5%, and when the load power changes within the range of 10% to 100%, the output voltage and frequency fluctuation range does not exceed ±2%; the rated load conversion efficiency of the inverter is not less than 90%, and the conversion efficiency within the 50% to 100% load range is not less than 85%.

[0011] Each rectifier input terminal has a cross-sectional area of ​​not less than 4mm². 2 The copper core cable is connected to the corresponding inverter output terminal; the rectifier rectifies the 48V~280V high voltage AC power output by the inverter into a high voltage DC power of not less than 48V~280V; the rectifier's rated load conversion efficiency is not less than 90%, and the conversion efficiency is not less than 85% within the 50%~100% load range.

[0012] The controller module is responsible for receiving the excitation command from the main controller and managing the delay and trigger signals of all controller channels. Each controller includes a communication module, a safety interlock module, a delay control module, a resistance detection module, a current detection module, and a high-voltage drive and isolation module connected in sequence. The high-voltage drive and isolation module is equipped with an explosion-proof quick-connect connector, and the resistance detection module is equipped with an LED indicator. Each controller also includes a power switch and an emergency manual trigger interface. The controller module includes no less than 120 independent controller channels, and the output of each controller channel uses an explosion-proof quick-connect connector.

[0013] The cooling system includes several axial fans, which are connected to an automatic temperature control module. These axial fans are positioned in the heat-generating module areas within the integrated cabinet. The main controller is a handheld or desktop independent control device. A display screen is installed on the outside of the main controller. Below the display screen are a dual explosion-proof switch, a key lock hole, a duration adjustment button, a channel delay adjustment button, and an emergency stop button. The main controller internally includes a main control unit, a main controller communication module, a power supply module, an unlocking interlock module, an emergency stop control module, a fault alarm module, a parameter setting module, a display module, and a status inspection module, which are connected in sequence. The main controller communication module is connected to the communication module, and the display module is connected to the display screen.

[0014] Another technical solution adopted in this invention is a control method for a high-power multi-channel independent time-delay initiation system. Specifically, the integrated cabinet is fixedly grounded, the power supply to the integrated cabinet is turned off, and the ignition devices are connected to the corresponding output channels of the controller. The power switch is turned on, and the controller output channels monitor the resistance value and on / off status of each channel's power terminal in real time. After confirming that the ignition network is correct, the main controller is connected to the integrated cabinet. The main controller power is turned on, and the main controller enters the initialization process, sending initialization commands to the integrated cabinet. It completes the detection of insulation resistance, power supply voltage, and communication status of all controller output channels. The main controller inputs the initiation parameters for each output channel and sends the parameters to each controller within the integrated cabinet. After receiving the commands, the controllers achieve precise segmented initiation.

[0015] The specific steps are as follows: Step 1: Deploy and fix the integrated cabinet to the designated location at the work site, complete the grounding operation of the integrated cabinet, and with the power switch of the integrated cabinet in the off state, use the excitation wire to connect the ignition device in each blast hole to the corresponding output channel of the controller. Step 2: Turn on the power switch in the controller module. The controller output channel monitors the resistance value and on / off status of the power supply terminal of each channel in real time. After confirming that the excitation network is correct, connect the communication cable between the main controller and the integrated cabinet. Step 3: Power on the main controller. The main controller will automatically enter the initialization process and perform its own hardware self-test. After the self-test is passed, it will send an initialization command to the integrated cabinet. Within 10 seconds, it will complete the detection of insulation resistance, power supply voltage and communication status of all controller output channels. After the detection is passed, the main controller's display screen will show the ready result. Step 4: According to the blasting operation requirements, set different delay times for the channels corresponding to the blasting holes in different areas. Input the detonation parameters of each output channel into the main controller. After the parameters are set, the main controller sends the parameters to each controller in the integrated cabinet to realize segmented detonation. Step 5: After confirming that no personnel are present at the work site and that safety precautions are in place, the operator inserts the physical key into the key lock and rotates it to the "unlock" position, illuminating the "key unlock" indicator on the main controller. Then, the "permit detonation switch" and "safety confirmation switch" are sequentially rotated to "ON". After the "safety confirmation switch" is turned on, the main controller sends an ignition trigger command to the controller. Upon receiving the command, the controller outputs high-voltage DC power to the corresponding channel according to the preset delay time for each channel, igniting the ignition device within 50ms to achieve precise segmented detonation. During the detonation process, the main controller 1 displays the real-time operating status of each channel. During the detonation process, if a short circuit, overload, or open circuit occurs in a certain channel, the controller immediately cuts off the high-voltage output of that channel, the corresponding channel's LED indicator flashes yellow, the main controller issues a differentiated audible and visual alarm and displays the faulty channel number; after receiving the alarm, the operator suspends the detonation operation, investigates and eliminates the cause of the fault, and then re-executes the unlocking and self-test process. Through the main controller's "single-channel activation" function, the faulty channel is triggered individually to ensure that all blast holes are detonated.

[0016] The beneficial effects of this invention are as follows: The high-power multi-channel independent delay detonation control system of this invention adopts a modular integrated design, optimizes the equipment structure layout, and balances transportation convenience and environmental adaptability. The multi-channel independent controller design, combined with millisecond-level delay control, meets the needs of large-scale segmented blasting operations. The output voltage and current of each channel are stable, and the ignition response is rapid, ensuring precise and controllable blasting effects. The control system of this invention has the characteristics of strong environmental adaptability, large channel capacity, high delay accuracy, high output power, safety and reliability, and wide applicability. It can work stably in harsh environments with altitudes of -100m to 6000m, temperatures of -30℃ to 60℃, and IP65 protection rating, and has promising applications in large-scale, high-level engineering blasting.

[0017] This invention presents a high-power, multi-channel, independent time-delay detonation control method. Through a closed-loop design encompassing system deployment and initialization, access control and security verification, detonation parameter configuration, segmented activation, status monitoring, and emergency control, it achieves standardized, precise, and safe detonation operations. Dual unlocking and multi-dimensional security verification mechanisms prevent misoperation and safety hazards from the outset; flexible parameter configuration modes adapt to different blasting operation requirements; segmented activation control ensures precise detonation of each channel according to preset delays; and real-time status monitoring and differentiated emergency control mechanisms can quickly locate and handle faults, ensuring operational integrity and safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the planar layout of the high-power multi-channel independent delay initiation system of the present invention; Figure 2 This is a schematic diagram of the integrated cabinet of the high-power multi-channel independent delay initiation system of the present invention; Figure 3 This is a schematic diagram of the integrated cabinet of the high-power multi-channel independent delay initiation system of the present invention; Figure 4 This is a schematic diagram of the battery pack built into the integrated cabinet of the high-power multi-channel independent delay initiation system of the present invention; Figure 5 This is a schematic diagram of the integrated cabinet built-in controller of the high-power multi-channel independent delay initiation system of the present invention; Figure 6 This is a schematic diagram of the internal structure of the main controller of the high-power multi-channel independent delay initiation system of the present invention; Figure 7 This is a schematic diagram of the main controller of the high-power multi-channel independent delay initiation system of the present invention; Figure 8 This is a schematic diagram of the control method for the high-power multi-channel independent delay initiation system of the present invention; In the diagram, 1. Main controller, 1-1. Keyhole, 1-2. Detonation permission switch, 1-3. Safety confirmation switch, 1-4. Duration adjustment button, 1-5. Channel delay adjustment button, 1-6. Emergency stop button, 1-7. Display screen, 1-8. Main control unit, 1-9. Main controller communication module, 1-10. Power supply module, 1-11. Unlocking interlock module, 1-12. Emergency stop control module, 1-13. Fault alarm module, 1-14. Parameter setting module, 1-15. Display module, 1-16. Status inspection module, 2. Integrated cabinet, 2-1. Adjustable casters, 2-2. Fixed support 1. Foot; 2-3. Handle; 2-4. Safety lock; 2-5. Ventilation hole; 3. Battery pack module; 3-1. Power monitoring module; 3-2. LED display screen; 4. Inverter module; 5. Rectifier module; 6. Controller module; 6-1. Delay control module; 6-2. Current detection module; 6-3. Explosion-proof quick connector; 6-4. Resistance detection module; 6-5. LED indicator; 6-6. Power switch; 6-7. Emergency manual trigger interface; 6-8. Communication module; 6-9. Safety interlock module; 6-10. High voltage drive and isolation module; 7. Cooling system; 8. Bursting hole; 9. Communication cable. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1 The high-power multi-channel independent delay initiation control system of this invention has the following structure: Figure 1 As shown, the system includes a main controller 1, which issues detonation commands to the entire system. The main controller 1 is connected to an integrated cabinet 2. The integrated cabinet 2 contains a battery pack module 3, an inverter module 4, a rectifier module 5, and a controller module 6, which are connected in sequence. The integrated cabinet 2 is equipped with a heat dissipation system 7. The controller module 6 is connected to the ignition device inside the blast hole 8. The battery pack module 3 supplies power to the entire system.

[0021] Example 2 like Figure 2As shown, the battery pack module 3 includes a battery pack, the inverter module 4 includes several inverters, the rectifier module 5 includes several rectifiers, and the controller module 6 includes several controllers. The battery pack is connected in parallel with several inverters via wires. The several inverters are respectively connected to several rectifiers, and the several rectifiers are respectively connected to several controllers. The output end of the battery pack is connected to the inverters, which convert the low-voltage DC power output by the battery pack into high-voltage AC power. The output end of the inverters is connected to the rectifiers, which rectify the high-voltage AC power output by the inverters into high-voltage DC power. The output end of the rectifiers is connected to the controllers, and the output channel of the controllers delivers the high-voltage DC power output by the rectifiers to each blast hole 8. Ignition devices are installed in each blast hole 8.

[0022] Example 3 The main controller 1 and the integrated cabinet 2 are connected by a communication cable 9; the installation gap between the battery pack module 3, inverter module 4, rectifier module 5, and controller module 6 inside the integrated cabinet 2 is not less than 10mm, and physical isolation is achieved through metal partitions; the wiring spacing between the high-voltage modules and the low-voltage modules is not less than 50mm, and the intersections are isolated by epoxy resin insulating partitions with a thickness of 5mm to reduce electromagnetic interference; an independent grounding copper busbar with a cross-sectional area of ​​not less than 25mm² is installed inside the integrated cabinet 2. 2 The grounding of the high-voltage module and the low-voltage module are respectively connected to the corresponding terminals of the grounding copper busbar, with a terminal spacing of not less than 30mm to ensure reliable grounding. The grounding terminal of the integrated cabinet 2 shell is made of copper with a cross-sectional area of ​​not less than 16mm². 2 The grounding terminal is fixed to the shell by welding and bolts. The grounding impedance does not exceed 0.1Ω. The grounding wire is a flame-retardant cable with a wire diameter of not less than 4mm². The continuity resistance of the grounding circuit does not exceed 0.05Ω.

[0023] Example 4 like Figure 3 As shown, the integrated cabinet 2 has adjustable casters 2-1 around its bottom, each equipped with a brake pad for easy movement and securing. Each caster 2-1 has a fixed support leg 2-2 on its outer side, secured to the pickup truck bed or the work site floor with bolts. Handles 2-3 are located on both sides of the top edge of the integrated cabinet 2. Each handle 2-3 has a load-bearing capacity of at least 500kg and is made of metal for easy handling. The overall weight of the integrated cabinet 2 does not exceed 300kg. Its dimensions are compatible with mainstream pickup truck beds, with a length range of 1380mm–1850mm and a width range of 1465mm–1595mm, facilitating transportation and on-site setup. The cabinet door of the integrated cabinet 2 is equipped with a safety lock 2-4. Several ventilation holes 2-5 are located on the side walls of the integrated cabinet 2, each with a ventilation area of ​​at least 0.2m². 2Each ventilation hole 2-5 is equipped with a dustproof screen. The dustproof screen adopts a 100-mesh stainless steel snap-on installation design for easy disassembly and cleaning. The integrated cabinet 2 is made of high-strength alloy material that is wear-resistant, corrosion-resistant, and impact-resistant. The integrated cabinet 2 has a protection level of not less than IP65 and an explosion-proof level that meets the requirements of GB 3836.1-2010 and GB 3836.4-2010 standards, and is not less than Ex d IIB T4 Ga.

[0024] Example 5 like Figure 4 As shown, the battery pack module 3 also includes a power monitoring module 3-1 and an LED display screen 3-2. The LED display screen 3-2 displays the battery pack power status in real time. The battery pack charger supports constant current and constant voltage charging mode. The rated output voltage of the battery pack is 48V, the capacity is not less than 50Ah, the discharge rate is not less than 8C, and it has multiple protection functions such as overcharge, overvoltage, overcurrent, short circuit, and high temperature. The protection response time is not more than 100ms, and the charging time from 0% to 100% is not more than 4 hours. After the battery pack is cycled for no less than 2000 times under standard charge and discharge regulation, the capacity retention rate is not less than 80%.

[0025] The battery pack casing adopts a hollow aluminum alloy structure with a high-temperature resistant insulating coating on the surface; the battery pack can work stably in environments with temperatures ranging from -30℃ to 60℃ and altitudes from -100m to 5000m; the battery pack uses a general-purpose lithium iron phosphate battery.

[0026] A silicone buffer pad with a thickness of not less than 5mm is installed at the fixing point between the battery pack and the integrated cabinet 2. The silicone buffer pad has a Shore hardness of 50±5 to reduce vibration and impact during transportation and operation.

[0027] Each inverter input terminal has a cross-sectional area of ​​not less than 6mm². 2 The copper core cable is connected to the output terminal of the battery pack; the inverter converts the 48V low-voltage DC power output from the battery pack into a high-voltage AC power output of 48V~280V; the output power of a single inverter is not less than 3KW, the output voltage fluctuation range is ±5%, and it is compatible with resistive, inductive, and capacitive loads. When the load power changes within the range of 10% to 100%, the output voltage and frequency fluctuation range does not exceed ±2%; the inverter's rated load conversion efficiency is not less than 90%, and the conversion efficiency is not less than 85% within the 50% to 100% load range.

[0028] Each rectifier input terminal has a cross-sectional area of ​​not less than 4mm². 2The copper core cable is connected to the corresponding inverter output terminal; the rectifier rectifies the 48V~280V high-voltage AC power output by the inverter into high-voltage DC power of not less than 48V~280V; the rectifier's rated load conversion efficiency is not less than 90%, and the conversion efficiency is not less than 85% within the 50%~100% load range; the rectifier has input overvoltage, undervoltage, overcurrent, short circuit and output overvoltage, undervoltage, overcurrent, short circuit and overheat protection functions, and the response time of all protections does not exceed 50ms; The inverter and rectifier are both fixed to the integrated cabinet 2 with detachable bolts. The fixing points are equipped with silicone buffer structures to facilitate future maintenance and replacement.

[0029] Controller module 6 is responsible for receiving the excitation command from the main controller 1 and managing the delay and trigger signals of all controller channels. Each controller input has a cross-sectional area of ​​not less than 2.5 mm². 2 The high-voltage copper core cable is connected to the output terminal of the rectifier to provide a high-voltage DC power output of not less than 48V~280V for each channel; the output current of a single channel of the controller is not less than 12A, and the continuous power supply time is not less than 10s. It is adjusted by the main controller 1 with an adjustment accuracy of 0.1s; the delay adjustment range of each channel is 0ms~999ms, and the adjustment step is 1ms.

[0030] Example 6 like Figure 5 As shown, each controller includes, in sequence, a communication module 6-8, a safety interlock module 6-9, a delay control module 6-1, a resistance detection module 6-4, a current detection module 6-2, and a high-voltage drive and isolation module 6-10. The high-voltage drive and isolation module 6-10 is equipped with an explosion-proof quick-connect connector 6-3, and the resistance detection module 6-4 is equipped with an LED indicator 6-5. Each controller also includes a power switch 6-6 and an emergency manual trigger interface 6-7. Controller module 6 includes at least 120 independent controller channels. Each controller channel output uses an explosion-proof quick-connect connector 6-3, which has a mis-plugging prevention function. Idle connectors are sealed with fluororubber dust caps (Shore hardness 70±5) and kept short-circuited to prevent stray current from causing accidental ignition. The resistance detection module 6-4 has a real-time output channel status monitoring function, monitoring the resistance value and continuity status of each channel's power supply terminal, and displaying this information through an independent LED indicator 6-5. The controller output channels are numbered and correspond one-to-one with the output cable numbers. When the indicator light shows a fault, the faulty line can be quickly identified.

[0031] All controllers are remotely triggered and controlled by the main controller 1. The power switch 6-6 is an explosion-proof rotary power switch. After the power switch 6-6 is turned on, the controller is in a no-pressure standby state and only outputs high voltage after receiving a valid trigger command from the main controller 1. The controller's communication module 6-8 is connected to the main controller 1 using an industrial-grade shielded communication cable. When communication is interrupted for ≤10ms, all channels of high voltage output are automatically cut off and the controller enters a safety lockout state. The controller's safety interlock module 6-9 uses multiple safety interlock logic. High voltage output is only allowed when the local switch is turned on, a valid triple unlock command from the main controller is received, and the system self-test is fault-free. The high voltage drive and isolation module 6-10 connects the controller's high voltage output circuit and control circuit using opto-isolation or magnetic isolation. The insulation resistance between each high voltage output channel and between the output channel and the casing is not less than 100MΩ. The emergency manual trigger interface 6-7 is explosion-proof and sealed. Only after the main controller 1 fails and a safety assessment is conducted can authorized personnel use special tools to connect the manual trigger device. After triggering, only one channel can be detonated sequentially.

[0032] The main controller 1 sends an "excitation command," which is transmitted via communication cable 9 to the communication modules 6-8 of each controller. Communication modules 6-8 decrypt and parse the command, synchronizing the command data to the safety interlock module 6-9. The safety interlock module 6-9 verifies the triple conditions of "local switch on, command valid, and system fault-free." After successful verification, it sends a command to the delay control module 6-1. The delay control module 6-1 then sends a "conduction signal" to the high-voltage drive and isolation module 6-10 of the corresponding output channel according to the preset delay parameters. The switching device of the high-voltage drive and isolation module 6-10 is turned on, and the high-voltage DC power provided by the rectifier 5 is output to the ignition device through this channel, while simultaneously starting the continuous power supply timer. After the continuous power supply time reaches the set value, the delay control module 6-1 sends a "shutdown signal," and the switching device of the high-voltage drive and isolation module 6-10 is turned off, stopping the high-voltage output.

[0033] The cooling system 7 includes several axial fans connected to an automatic temperature control module. These axial fans are positioned in the heat-prone module areas within the integrated cabinet 2, employing a combined cooling method of "natural cooling + forced cooling." The airflow is no less than 80 CFM, and the noise level does not exceed 55 dB. The fans are equipped with an automatic temperature control module that automatically starts when the temperature in the corresponding area exceeds 40°C and automatically stops when it falls below 30°C. This ensures that the internal temperature of the integrated cabinet 2 is stably controlled below 60°C, preventing module failure due to overheating. like Figure 6 and Figure 7As shown, the main controller 1 is a handheld or desktop independent control device, weighing no more than 1.5kg. The main controller 1 has a display screen 1-7 on its outer side. Below the display screen 1-7 are a double explosion-proof switch, a keyhole 1-1, a duration adjustment button 1-4, a channel delay adjustment button 1-5, and an emergency stop button 1-6. The main controller 1 internally includes, in sequence, a main control unit 1-8, a main controller communication module 1-9, a power supply module 1-10, an unlocking interlock module 1-11, an emergency stop control module 1-12, a fault alarm module 1-13, a parameter setting module 1-14, and a display. Modules 1-15 and 1-16 are included. The main controller communication module 1-9 connects to communication modules 6-8, and the display module 1-15 connects to display screen 1-7. Parameter setting module 1-14 allows for setting channel delay time and continuous power supply time parameters. Status inspection module 1-16 provides channel status inspection functionality, real-time monitoring of insulation resistance, power supply voltage, communication status, and other parameters of each controller; the inspection cycle is adjustable from 1s to 10s. Fault alarm module 1-13 connects to an audible and visual alarm system, providing emergency stop control with differentiated alarm modes for different fault types. Power supply module 1-10 uses a built-in battery, supports fast charging (charging time not exceeding 2 hours), and has a standby time of not less than 72 hours at room temperature. It can simultaneously control ≥2 integrated cabinets in cascade operation with a cascade synchronization error ≤1ms, meeting the needs of large-scale blasting operations.

[0034] The dual explosion-proof switches include detonation permit switches 1-2 and safety confirmation switches 1-3. They employ a rotary structure to prevent accidental activation and are marked "ON / OFF". They must be activated sequentially after being unlocked with a physical key. If a single step is performed or the sequence is incorrect, the equipment remains locked and displays a "Not Ready" message. Emergency stop control modules 1-12 are connected to emergency stop buttons. Mushroom-shaped emergency stop buttons are installed on both the main controller and the integrated cabinet 2, equipped with anti-accidental activation protective covers. Pressing the button cuts off all output channels from the rectifier input circuit within 100ms and simultaneously triggers the power-off memory function. After troubleshooting, the button must be rotated clockwise to reset. The dual explosion-proof switches, unlocking interlock module 1-11, and emergency stop control module 1-12 constitute a dual unlocking interlock mechanism of "physical key + dual explosion-proof switches". After the physical key is inserted into the keyhole 1-1 and rotated to the "unlock" position, the control circuit is powered on and the corresponding indicator light is illuminated. The display screen 1-7 has a screen size of no less than 5 inches and has anti-glare function. The main control unit 1-8 has remote excitation control function and can simultaneously control multiple integrated cabinets to work in cascade, with a synchronization error of no more than 1ms. The main controller 1 and the integrated cabinet 2 are connected by an industrial-grade shielded twisted-pair cable with a length of no less than 200m, and the anti-interference capability meets industrial standards. In some application scenarios, under environments with power frequency interference, walkie-talkie electromagnetic interference, etc., the communication bit error rate between the main controller 1 and the integrated cabinet 2 does not exceed 10. -6 .

[0035] The high-voltage circuit of the detonation equipment adopts a double insulation design, with a basic insulation thickness of not less than 1.0 mm and a reinforced insulation thickness of not less than 2.0 mm. The insulation material is epoxy resin with an arc resistance of not less than 125℃ and aging resistance. A physical isolation design is employed to achieve triple isolation: the high-voltage circuit and control circuit are photoelectrically isolated with an isolation voltage of not less than 2000VAC; the detonation output circuit and signal acquisition circuit are magnetically isolated with an isolation degree of not less than 100dB; the internal and external environments of the detonation equipment are sealed with explosion-proof materials, and the seals are made of fluororubber with a Shore hardness of 70±5 and a compression set of not more than 20% (70℃×24h). The detonation equipment has passed explosion-proof certification, and the explosion-proof mark is clearly marked on the outer casing. A red "High Voltage Danger" warning sign is marked on the surface of high-voltage components; function labels are clearly marked next to the operating buttons, and the labels are wear-resistant.

[0036] This invention relates to a high-power multi-channel independent delay initiation control method, which employs a high-power multi-channel independent delay initiation control system and is implemented according to the following steps: Step 1: Deploy and fix the integrated cabinet 2 to the designated location at the work site, complete the grounding operation of the integrated cabinet 2, and with the power switch of the integrated cabinet 2 in the off state, use the excitation wire to connect the ignition device in each blast hole 8 to the corresponding controller output channel. Step 2: Turn on the power switch 6-6 in the controller module 6. The controller output channel monitors the resistance value and on / off status of the power supply terminal of each channel in real time. After confirming that the excitation network is correct, connect the communication cable 9 between the main controller 1 and the integrated cabinet 2. Step 3: Power on the main controller 1. The main controller 1 will automatically enter the initialization process and perform its own hardware self-test. After the self-test is passed, it will send an initialization command to the integrated cabinet 2. Within 10 seconds, it will complete the detection of insulation resistance, power supply voltage and communication status of all controller output channels. After the detection is passed, the display screens 1-7 of the main controller 1 will display the ready result. Step 4: Based on the blasting operation requirements, set different delay times for the channels corresponding to the blasting holes 8 in different areas. Input the detonation parameters for each output channel into the main controller 1. After the parameters are set, the main controller 1 sends the parameters to each controller in the integrated cabinet 2 to achieve segmented detonation. The detonation parameters include the delay time and the continuous power supply time. After the detonation parameters are set, click the "Synchronize" button. The main controller 1 will send the parameters to the controller 6 in the integrated cabinet 2. The synchronization error is ≤50ms. After synchronization is completed, the controller will send back a confirmation signal, and the main controller 1 will display "Parameter synchronization successful".

[0037] Step 5: After confirming that no personnel are present at the work site and that safety precautions are in place, the operator inserts the physical key into the keyhole and rotates it to the "unlock" position, illuminating the "key unlock" indicator on the main controller 1. Then, the "permit detonation switch" and "safety confirmation switch" are sequentially rotated to "ON". After the "safety confirmation switch" is turned on, the main controller 1 sends an ignition trigger command to the controller. Upon receiving the command, the controller outputs high-voltage DC power to the corresponding channel according to the preset delay time for each channel, completing the ignition of the ignition device within 50ms, achieving precise segmented detonation. During the detonation process, the main controller 1 displays the real-time operating status of each channel (awaiting ignition / ignition in progress / ignition complete). During the detonation process, if a short circuit, overload, or open circuit occurs in a certain channel, the controller immediately cuts off the high-voltage output of that channel, and the corresponding channel LED indicator 6-5 flashes yellow. The main controller 1 issues a differentiated audible and visual alarm and displays the faulty channel number. After receiving the alarm, the operator suspends the detonation operation, investigates and eliminates the cause of the fault, and then re-executes the unlocking and self-test process. Through the "single channel activation" function of the main controller, the faulty channel is triggered individually to ensure that all blast holes are detonated.

[0038] This invention presents a high-power, multi-channel, independent delayed-delay detonation system that ensures precise and synchronized detonation of all blasting points at predetermined times, maximizing the blasting effect. It significantly improves synchronization accuracy and maintains stable operation even in harsh environments, effectively enhancing the safety, consistency, and controllability of the blasting process. This invention boasts high environmental adaptability, ample channel capacity, and excellent safety protection, improving blasting effectiveness and enhancing operational flexibility and convenience. The high-power, multi-channel, independent delayed-delay detonation control method of this invention features a clear process, convenient operation, and requires no additional auxiliary equipment, simplifying on-site procedures, improving operational efficiency, and has a wide range of applications. It can be used to pop balloons, detonate fireworks and firecrackers, and can also serve as an initiation device for pyrotechnic blasting, carbon dioxide blasting technology, and liquid oxygen rock-breaking technology.

Claims

1. A high-power, multi-channel, independent time-delay detonation control system, characterized in that, The system includes a main controller (1), which issues an initiation command to the entire system. The main controller (1) is connected to an integrated cabinet (2). The integrated cabinet (2) contains a battery pack module (3), an inverter module (4), a rectifier module (5), and a controller module (6). The battery pack module (3), inverter module (4), rectifier module (5), and controller module (6) are connected in sequence. The integrated cabinet (2) contains a heat dissipation system (7), and the controller module (6) is connected to the ignition device inside the blast hole (8).

2. The high-power multi-channel independent delay detonation control system according to claim 1, characterized in that, The battery module (3) includes a battery pack, the inverter module (4) includes several inverters, the rectifier module (5) includes several rectifiers, and the controller module (6) includes several controllers. The battery pack is connected in parallel with several inverters via wires. Several inverters are connected to several rectifiers respectively, and several rectifiers are connected to several controllers respectively. The output end of the battery pack is connected to the inverter. The inverter converts the low-voltage DC power output by the battery pack into high-voltage AC power. The output end of the inverter is connected to the rectifier. The rectifier converts the high-voltage AC power output by the inverter into high-voltage DC power. The output end of the rectifier is connected to the controller. The output channel of the controller delivers the high-voltage DC power output by the rectifier to each blast hole (8). Ignition devices are installed in the blast holes (8). The main controller (1) is connected to the integrated cabinet (2) via a communication cable (9).

3. The high-power multi-channel independent delay initiation control system according to claim 2, characterized in that, The integrated cabinet (2) is equipped with adjustable casters (2-1) around the bottom, and fixed support feet (2-2) are fixed on the outside of each adjustable caster (2-1); handles (2-3) are set on the two sides of the top of the integrated cabinet (2); the cabinet door of the integrated cabinet (2) is equipped with a safety lock (2-4); several ventilation holes (2-5) are set on the side wall of the integrated cabinet (2), and a dustproof net is installed on each ventilation hole (2-5).

4. The high-power multi-channel independent delay detonation control system according to claim 3, characterized in that, The battery pack module (3) also includes a power monitoring module (3-1) and an LED display screen (3-2), which displays the battery pack power status in real time.

5. The high-power multi-channel independent delay detonation control system according to claim 4, characterized in that, Each inverter input terminal has a cross-sectional area of ​​not less than 6mm². 2 The copper core cable is connected to the battery pack output terminal; the inverter converts the 48V low-voltage DC power output from the battery pack into a high-voltage AC power output of 48V~280V; the output power of a single inverter is not less than 3KW, the output voltage fluctuation range is ±5%, and when the load power varies within the range of 10% to 100%, the output voltage and frequency fluctuation range does not exceed ±2%; the inverter's rated load conversion efficiency is not less than 90%, and the conversion efficiency within the 50% to 100% load range is not less than 85%; the cross-sectional area of ​​each rectifier input terminal is not less than 4mm². 2 The copper core cable is connected to the corresponding inverter output terminal; the rectifier rectifies the 48V~280V high voltage AC power output by the inverter into a high voltage DC power of not less than 48V~280V; the rectifier's rated load conversion efficiency is not less than 90%, and the conversion efficiency is not less than 85% within the 50%~100% load range; all protection response times do not exceed 50ms.

6. The high-power multi-channel independent delay initiation control system according to claim 5, characterized in that, The controller module (6) is responsible for receiving the excitation command from the main controller (1) and managing the delay and trigger signals of all controller channels. Each controller includes a communication module (6-8), a safety interlock module (6-9), a delay control module (6-1), a resistance detection module (6-4), a current detection module (6-2), and a high-voltage drive and isolation module (6-10) connected in sequence. The high-voltage drive and isolation module (6-10) is equipped with an explosion-proof quick connector (6-3), and the resistance detection module (6-4) is equipped with an LED indicator (6-5). Each controller also includes a power switch (6-6) and an emergency manual trigger interface (6-7). The controller module (6) includes no less than 120 independent controller channels, and the output of each controller channel adopts an explosion-proof quick connector (6-3).

7. The high-power multi-channel independent delay initiation control system according to claim 6, characterized in that, The heat dissipation system (7) includes several axial fans, which are connected to an automatic temperature control module. The several axial fans are respectively set in the heat-generating module area inside the integrated cabinet (2).

8. The high-power multi-channel independent delay initiation control system according to claim 7, characterized in that, The main controller (1) adopts a handheld or desktop independent control device. The main controller (1) is equipped with a display screen (1-7) on the outside. Below the display screen (1-7) are a double explosion-proof switch, a key lock hole (1-1), a duration adjustment button (1-4), a channel delay adjustment button (1-5), and an emergency stop button (1-6). The main controller (1) includes a main control unit (1-8), a main controller communication module (1-9), a power supply module (1-10), an unlocking interlock module (1-11), an emergency stop control module (1-12), a fault alarm module (1-13), a parameter setting module (1-14), a display module (1-15), and a status inspection module (1-16) connected in sequence. The main controller communication module (1-9) is connected to the communication module (6-8), and the display module (1-15) is connected to the display screen (1-7).

9. A high-power, multi-channel, independent delay-based detonation control method, characterized in that, The high-power multi-channel independent delayed detonation control system described in claim 8 is used as follows: the integrated cabinet (2) is fixedly grounded, the power supply of the integrated cabinet (2) is turned off, and the ignition device is connected to the corresponding output channel of the controller; the power switch (6-6) is turned on, and the output channel of the controller monitors the resistance value and on / off status of the power supply terminal of each channel in real time. After confirming that the excitation network is correct, the main controller (1) is connected to the integrated cabinet (2); the power supply of the main controller (1) is started, the main controller (1) enters the initialization process, sends the initialization command to the integrated cabinet (2), completes the detection of the insulation resistance, power supply voltage and communication status of all controller output channels, inputs the detonation parameters of each output channel in the main controller (1), and sends the parameters to each controller in the integrated cabinet (2). After receiving the command, the controller realizes precise segmented detonation.

10. The high-power multi-channel independent delay initiation control method according to claim 9, characterized in that, The specific steps are as follows: Step 1: Ground the integrated cabinet (2) in place. With the power switch of the integrated cabinet (2) in the off state, connect the ignition device to the corresponding output channel of the controller. Step 2: Turn on the power switch (6-6). The controller output channel monitors the resistance value and on / off status of each channel's power terminal in real time. After confirming that the excitation network is correct, connect the main controller (1) to the integrated cabinet (2). Step 3: Power on the main controller (1). The main controller (1) enters the initialization process and performs its own hardware self-test. After passing the test, it sends an initialization command to the integrated cabinet (2) to complete the detection of insulation resistance, power supply voltage and communication status of all controller output channels. After passing the test, the display screen (1-7) of the main controller (1) displays the ready result. Step 4: According to the blasting operation requirements, set different delay times for the channels corresponding to the blasting holes (8) in different areas. Input the detonation parameters of each output channel into the main controller (1). After the parameters are set, the main controller (1) sends the parameters to each controller in the integrated cabinet (2) to realize segmented detonation. Step 5: After confirming that no personnel are present at the work site and that the safety warning is in place, the operator inserts the physical key into the key lock and rotates it to the "unlock" position. The "key unlock" indicator light on the main controller (1) will then illuminate. Subsequently, the "permit detonation switch" and the "safety confirmation switch" will be rotated to "ON" in sequence. After the "safety confirmation switch" is turned on, the main controller (1) sends an ignition trigger command to the controller. After receiving the command, the controller outputs high voltage DC power to the corresponding channel in sequence according to the preset delay time of each channel, and completes the excitation of the ignition device within 50ms to achieve precise segmented detonation. During the detonation process, the main controller (1) displays the working status of each channel in real time. During the detonation process, if a short circuit, overload, or open circuit occurs in a certain channel, the controller will immediately cut off the high voltage output of that channel, and the corresponding channel LED indicator (6-5) will flash yellow. The main controller (1) will issue a differentiated audible and visual alarm and display the fault channel number. After receiving the alarm, the operator will suspend the detonation operation, investigate the cause of the fault and eliminate it, and then re-execute the unlocking and self-test process. Through the "single channel activation" function of the main controller, the fault channel will be triggered individually to ensure that all blast holes are detonated.

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