Tuning matching method for low-frequency electromagnetic wave antenna and wireless electronic detonator receiving device

Abstract

The invention relates to the technical field of electronic detonators, in particular to a tuning matching method for a low-frequency electromagnetic wave antenna and a wireless electronic detonator receiving device, which comprises the following steps of: determining respective corresponding capacitor access points on a low-frequency electromagnetic wave antenna transmitting device and the wireless electronic detonator receiving device; corresponding capacitance tuning boxes are connected to the capacitance access points, and capacitance values corresponding to the capacitance access points on the low-frequency electromagnetic wave antenna transmitting device and the wireless electronic detonator receiving device are sequentially adjusted based on the corresponding preset capacitance adjusting strategies and the corresponding debugging requirements; the adjusted capacitance values meet the corresponding debugging requirements; and after the adjusted capacitance values meet respective corresponding debugging requirements, capacitance tuning boxes on the low-frequency electromagnetic wave antenna transmitting device and the wireless electronic detonator receiving device are replaced by capacitors with corresponding capacitance values.

Description

Technical Field

[0001] The invention relates to the technical field of electronic detonators, and in particular to a tuning and matching method for a low-frequency electromagnetic wave antenna and a wireless electronic detonator receiving device. Background Art

[0002] With the rapid development of science and technology and the continuous improvement of industrial automation, electronic detonators are increasingly used in mining and construction engineering. The traditional wired detonation method has gradually shown its shortcomings due to its limitations such as complex wiring and susceptibility to electromagnetic interference.

[0003] To this end, the applicant has developed a new type of wireless electronic detonator initiating device, including a low-frequency electromagnetic wave antenna transmitting device and a wireless electronic detonator receiving device. The initiation of the electronic detonator is achieved through wireless communication between the transmitting antenna of the low-frequency electromagnetic wave antenna transmitting device and the receiving antenna of the signal receiving device. During the wireless communication process, the tuning and matching of the low-frequency electromagnetic wave antenna transmitting device and the wireless electronic detonator receiving device is crucial to ensure efficient transmission and reception of signals. However, the traditional antenna tuning method cannot fully meet the needs of low-frequency electromagnetic wave communication, and there are problems such as large signal loss and low transmission efficiency.

[0004] Based on this, there is an urgent need for a tuning and matching method for a low-frequency electromagnetic wave antenna and a wireless electronic detonator receiving device, which can achieve dynamic tuning and precise impedance matching, thereby improving the transmission efficiency of low-frequency electromagnetic waves and reducing signal loss. Summary of the invention

[0005] One of the purposes of the present invention is to provide a tuning and matching method for a low-frequency electromagnetic wave antenna and a wireless electronic detonator receiving device, which can achieve dynamic tuning and precise impedance matching, thereby improving the transmission efficiency of low-frequency electromagnetic waves and reducing signal loss.

[0006] In order to achieve the above object, a tuning and matching method for a low-frequency electromagnetic wave antenna and a wireless electronic detonator receiving device is provided, comprising the following steps:

[0007] S1. Determine the corresponding capacitor access points on the low-frequency electromagnetic wave antenna transmitting device and the wireless electronic detonator receiving device;

[0008] S2. Connect the corresponding capacitor tuning box to the capacitor access point, and adjust the capacitance values ​​corresponding to the capacitor access points on the low-frequency electromagnetic wave antenna transmitting device and the wireless electronic detonator receiving device in turn based on the corresponding preset capacitor adjustment strategies and corresponding debugging requirements, until the adjusted capacitance values ​​meet the corresponding debugging requirements;

[0009] S3. After the adjusted capacitance values ​​meet the corresponding debugging requirements, the capacitance tuning boxes on the low-frequency electromagnetic wave antenna transmitting device and the wireless electronic detonator receiving device are replaced with capacitors with corresponding capacitance values.

[0010] Technical principle and effect of this scheme: In this scheme, first, on the low-frequency electromagnetic wave antenna transmitting device and the wireless electronic detonator receiving device, the key positions where capacitors can be inserted to adjust the resonant frequency of the circuit are found. These capacitor access points are usually located at the key nodes of the antenna or receiving circuit, and are connected to the above-determined capacitor access points using a capacitor tuning box. The capacitor tuning box is a variable capacitor that allows the operator to change its capacitance by rotation or other means.

[0011] According to the preset capacitance adjustment strategy and debugging requirements, the capacitance value is gradually adjusted until the ideal resonant state is achieved. The goal of this step is to make the resonant frequencies of the transmitter and receiver consistent and each device in the best working state, such as maximum output power or highest receiving sensitivity.

[0012] When the capacitance value is successfully adjusted to meet the corresponding debugging requirements, the temporary capacitance tuning box is replaced with a fixed capacitor with the same capacitance value. This not only simplifies the final product design, but also improves the stability and reliability of the system.

[0013] In this solution, the capacitance value is precisely adjusted to make the resonant frequencies of the low-frequency electromagnetic wave antenna transmitting device and the wireless electronic detonator receiving device consistent, thus achieving the best impedance matching between the two. This not only reduces reflection loss, reduces power reflection caused by impedance mismatch, and reduces signal loss, but also maximizes the energy transfer efficiency from the low-frequency electromagnetic wave antenna transmitting device to the wireless electronic detonator receiving device, significantly improving the transmission efficiency of low-frequency electromagnetic wave signals. Due to the reduction of unnecessary energy loss, the system can achieve efficient operation at lower power consumption, which is especially important for battery-powered portable devices. Good tuning and matching improves the received effective signal strength, allowing the receiving device to reliably identify and process detonation instructions even in the presence of noise.

[0014] Furthermore, the preset capacitance adjustment strategy corresponding to the low-frequency electromagnetic wave antenna transmitting device is:

[0015] S20, according to the capacitance adjustable interval corresponding to the low-frequency electromagnetic wave antenna transmitting device, dividing the corresponding capacitance adjustable interval into a plurality of uniform sub-adjustment intervals;

[0016] S21, randomly selecting a first reference capacitance value R in the corresponding sub-adjustment interval in sequence according to the order of each sub-adjustment interval. iand adjust the capacitance value corresponding to the capacitance tuning box on the low-frequency electromagnetic wave antenna transmitting device to the corresponding first reference capacitance value R i ;

[0017] S22, after the capacitance value corresponding to the capacitance tuning box is adjusted, the voltage value and current value corresponding to the transmitting coil in the low-frequency electromagnetic wave antenna transmitting device are monitored and collected, and the corresponding first reference capacitance value R is calculated based on the monitored voltage value and current value. i The output power corresponding to the lower transmitting coil;

[0018] S23, according to the first reference capacitance value R corresponding to each sub-adjustment interval i The output power corresponding to the lower transmitting coil is used to determine the first reference capacitance value R with the largest corresponding output power. z , and the adjacent first reference capacitance value R corresponding to the first reference capacitance value with the largest output power z+1 , R z-1 ;

[0019] S24. Based on the first reference capacitance value with the largest output power, respectively add and reduce the preset capacitance value to form the corresponding second capacitance value and third capacitance value, monitor and collect the voltage value and current value corresponding to the transmitting coil in the low-frequency electromagnetic wave antenna transmitting device, and calculate the output power corresponding to the transmitting coil under the corresponding second capacitance value and third capacitance value according to the monitored voltage value and current value, and judge whether the output power corresponding to the corresponding second capacitance value and third capacitance value is greater than the output power of the first reference capacitance value according to the obtained output power corresponding to the second capacitance value, the third capacitance value and the first reference capacitance value;

[0020] If the output power of the transmitting coil under the second capacitance value is greater than the output power of the transmitting coil under the first reference capacitance value, it is determined that the corresponding target capacitance value is in the target interval [R z-1 ,R z ], otherwise, it is [R z ,R z+1 ];

[0021] According to the determined target interval, based on the preset capacitance adjustment value, the preset capacitance adjustment value is adjusted in the target interval in turn, and by monitoring and collecting the voltage and current values ​​corresponding to the transmitting coil in the low-frequency electromagnetic wave antenna transmitting device, the output power corresponding to each adjusted capacitance value is calculated, and the capacitance value with the largest output power at this time is selected as the target capacitance value corresponding to the low-frequency electromagnetic wave antenna transmitting device.

[0022] Beneficial effect: In this solution, the adjustable capacitance interval is divided into several uniform sub-adjustment intervals, so that the capacitance value in each sub-interval changes more delicately, and the optimal capacitance value can be found more accurately. A first reference capacitance value R is randomly selected in each sub-interval. i , avoiding the problem that traditional linear search may miss the local optimal solution, and increasing the probability of finding the global optimal solution. Real-time monitoring and collection of voltage and current values, and calculation of the corresponding output power, ensure that each adjustment has data support, improving the reliability of the results.

[0023] By comparing the output power in each sub-interval, the first reference capacitor value R with the largest output power is quickly determined. z and its two adjacent reference capacitor values ​​R z+1 , R z-1 , preliminarily lock the area where the optimal solution is located. Based on the preliminarily locked area, further add and reduce the preset capacitance value to form the second capacitance value and the third capacitance value, and monitor and calculate again. This method can conduct more detailed exploration in a smaller range to ensure that the true global optimal solution is found.

[0024] By finding the optimal capacitance value through a stepwise approach, the risk of system instability caused by a one-time large adjustment is reduced. Compared with the traditional trial and error method or other manual adjustment methods, this method can complete precise adjustments in a shorter time, reducing debugging time and cost. The capacitance value finally selected maximizes the output power of the transmitting coil, thereby improving energy transmission efficiency and reducing unnecessary energy loss.

[0025] Furthermore, the preset capacitance adjustment strategy corresponding to the wireless electronic detonator receiving device is:

[0026] S200, after the low-frequency electromagnetic wave transmitting device completes the determination of the corresponding target capacitance value, the low-frequency electromagnetic wave transmitting device at this time transmits a signal to the wireless electronic detonator receiving device;

[0027] S201, in the process of the wireless electronic detonator receiving device receiving the transmission signal of the low-frequency electromagnetic wave transmitting device, according to the adjustable capacitance interval corresponding to the wireless electronic detonator receiving device, determining the intermediate capacitance value corresponding to the middle point of the corresponding adjustable capacitance interval, adjusting the capacitance value corresponding to the capacitance tuning box on the wireless electronic detonator receiving device to the intermediate capacitance value, and recording the signal-to-noise ratio corresponding to the receiving antenna corresponding to the adjusted wireless electronic detonator receiving device;

[0028] S202, taking the middle capacitance value corresponding to the middle point as the starting capacitance value, increasing or decreasing the middle capacitance value based on a preset step length, adjusting the capacitance value of the capacitance tuning box corresponding to the wireless electronic detonator receiving device, and recording the signal-to-noise ratio corresponding to the receiving antenna;

[0029] S203, determining a corresponding adjustment direction according to a signal-to-noise ratio corresponding to a preset increment, a signal-to-noise ratio corresponding to a preset decrement, and a signal-to-noise ratio corresponding to an intermediate capacitance value, wherein the adjustment direction includes increasing the capacitance value or decreasing the capacitance value;

[0030] S204, according to the determined adjustment direction, based on the preset step size, adjusting the capacitance value of the intermediate capacitance value in the adjustment direction, and after each adjustment, determining whether the signal-to-noise ratio corresponding to the current adjustment is greater than the signal-to-noise ratio corresponding to the previous adjustment, if so, continuing with the next adjustment, otherwise, determining that the capacitance value corresponding to the current adjustment exceeds the target capacitance value, and the target capacitance value is between the capacitance value corresponding to the current adjustment and the capacitance value corresponding to the previous adjustment;

[0031] S205. When it is determined that the target capacitance value is between the capacitance value corresponding to the current adjustment and the capacitance value corresponding to the previous adjustment, a fine adjustment step is set in the interval corresponding to the capacitance value corresponding to the current adjustment and the capacitance value corresponding to the previous adjustment, and the signal-to-noise ratio of the receiving antenna is recorded after each fine adjustment, and the capacitance value with the largest signal-to-noise ratio of the corresponding receiving antenna is selected to determine whether the corresponding signal-to-noise ratio of the receiving antenna meets the corresponding debugging requirements. If so, it is used as the target capacitance value of the wireless electronic detonator receiving device. Otherwise, S205 is re-executed and the fine adjustment step is adjusted.

[0032] Beneficial effects: After completing the preliminary calculation of the target capacitance value, a signal is sent to the receiving device through a low-frequency electromagnetic wave transmitting device to ensure that the transmitting device and the receiving device work synchronously. The capacitance value of the capacitor tuning box is set to the middle value of the adjustable range, and the signal-to-noise ratio (SNR) at this time is recorded as a reference to provide a benchmark point for subsequent adjustments. Starting from the middle capacitance value, increase and decrease the capacitance value according to the preset step size, and record the signal-to-noise ratio after each adjustment. Identify the trend of the impact of increasing and decreasing the capacitance value on the signal-to-noise ratio. Compare the signal-to-noise ratios corresponding to the increment, decrement and intermediate value, and select the direction of improving the signal-to-noise ratio as the adjustment direction. Clarifying whether to increase or decrease the capacitance value can improve the signal-to-noise ratio, thereby quickly determining the capacitance value adjustment direction, which facilitates the rapid determination of the target capacitance value.

[0033] By setting a reasonable step size and adjustment direction, this strategy can quickly converge to the optimal solution in a short time, and then finally determine the optimal capacitance value through fine adjustment. This feature not only saves time, but also reduces the occupation of test equipment and other resources. Each adjustment is accompanied by a detailed signal-to-noise ratio record, making the entire process transparent and traceable. This data can not only be used to guide the current adjustment process, but also for subsequent analysis and optimization, helping engineers better understand system behavior and make more informed design decisions.

[0034] Furthermore, the adjustment requirement corresponding to the wireless electronic detonator receiving device is that the signal-to-noise ratio corresponding to the receiving antenna is greater than a preset signal-to-noise ratio.

[0035] Beneficial effect: By ensuring that the signal-to-noise ratio of the receiving antenna is always higher than the preset value, the risk of signal loss or misjudgment can be greatly reduced, ensuring that the detonation command can be accurately transmitted to the detonator. This is crucial for safety-critical applications. A high signal-to-noise ratio means that the receiving device can clearly receive the detonation signal even in the presence of strong background noise, thereby improving the robustness and stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 The present invention is a flowchart of a method for tuning and matching a low-frequency electromagnetic wave antenna and a wireless electronic detonator receiving device in a first embodiment of the present invention. DETAILED DESCRIPTION

[0037] The following is further described in detail through specific implementation methods:

[0038] Embodiment 1

[0039] The tuning and matching method of the low-frequency electromagnetic wave antenna and the wireless electronic detonator receiving device is basically as follows Figure 1 As shown, the following steps are included:

[0040] S1. Determine the corresponding capacitance access points on the low-frequency electromagnetic wave antenna transmitting device and the wireless electronic detonator receiving device; in this embodiment, the low-frequency electromagnetic wave antenna transmitting device includes a wireless detonator transmitting controller, a power amplifier and a transmitting coil electrically connected in sequence. In this embodiment, the capacitance access point of the low-frequency electromagnetic wave antenna transmitting device is arranged between the power amplifier and the transmitting coil, wherein the transmitting coil is a ring antenna. The wireless electronic detonator receiving device includes a first controller, a power module, a dial switch and a wireless communication module. In this embodiment, the wireless communication module is a magnetic rod antenna. The first controller is electrically connected to the power module, the dial switch and the wireless communication module respectively. At the same time, the output end of the first controller is also connected to a detonation mechanism. The detonation mechanism includes a second controller and an ignition module electrically connected to the second controller. The second controller is controlled by the output of the first controller, and then the second controller realizes the detonation operation by controlling the ignition module. Wherein, the capacitance access point corresponding to the wireless electronic detonator receiving device is arranged between the magnetic rod antenna and the first controller.

[0041] S2. Connect the corresponding capacitor tuning box to the capacitor access point, and adjust the capacitance values ​​corresponding to the capacitor access points on the low-frequency electromagnetic wave antenna transmitting device and the wireless electronic detonator receiving device in turn based on the corresponding preset capacitor adjustment strategies and corresponding debugging requirements, until the adjusted capacitance values ​​meet the corresponding debugging requirements;

[0042] The preset capacitance adjustment strategy corresponding to the low-frequency electromagnetic wave antenna transmitting device is:

[0043] S20, according to the capacitance adjustable interval corresponding to the low-frequency electromagnetic wave antenna transmitting device, dividing the corresponding capacitance adjustable interval into a plurality of uniform sub-adjustment intervals;

[0044] S21, randomly selecting a first reference capacitance value R in the corresponding sub-adjustment interval in sequence according to the order of each sub-adjustment interval. i and adjust the capacitance value corresponding to the capacitance tuning box on the low-frequency electromagnetic wave antenna transmitting device to the corresponding first reference capacitance value R i ;

[0045] S22, after the capacitance value corresponding to the capacitance tuning box is adjusted, the voltage value and current value corresponding to the transmitting coil in the low-frequency electromagnetic wave antenna transmitting device are monitored and collected, and the corresponding first reference capacitance value R is calculated based on the monitored voltage value and current value. i The output power corresponding to the lower transmitting coil;

[0046] S23, according to the first reference capacitance value R corresponding to each sub-adjustment interval iThe output power corresponding to the lower transmitting coil is used to determine the first reference capacitance value R with the largest corresponding output power. z , and the adjacent first reference capacitance value R corresponding to the first reference capacitance value with the largest output power z+1 , R z-1 ;

[0047] S24. Based on the first reference capacitance value with the largest output power, respectively add and reduce the preset capacitance value to form the corresponding second capacitance value and third capacitance value, monitor and collect the voltage value and current value corresponding to the transmitting coil in the low-frequency electromagnetic wave antenna transmitting device, and calculate the output power corresponding to the transmitting coil under the corresponding second capacitance value and third capacitance value according to the monitored voltage value and current value, and judge whether the output power corresponding to the corresponding second capacitance value and third capacitance value is greater than the output power of the first reference capacitance value according to the obtained output power corresponding to the second capacitance value, the third capacitance value and the first reference capacitance value;

[0048] If the output power of the transmitting coil under the second capacitance value is greater than the output power of the transmitting coil under the first reference capacitance value, it is determined that the corresponding target capacitance value is in the target interval [R z-1 ,R z ], otherwise, it is [R z ,R z+1 ];

[0049] According to the determined target interval, based on the preset capacitance adjustment value, the preset capacitance adjustment value is adjusted in the target interval in turn, and the output power corresponding to each adjusted capacitance value is calculated by monitoring and collecting the voltage value and current value corresponding to the transmitting coil in the low-frequency electromagnetic wave antenna transmitting device, and the capacitance value with the maximum output power at this time is selected as the target capacitance value corresponding to the low-frequency electromagnetic wave antenna transmitting device. In this embodiment, the debugging requirements corresponding to the low-frequency electromagnetic wave antenna transmitting device are that the transmission output power is maximum, and the voltage signal received by the wireless electronic detonator receiving device is greater than 5V, so that the received voltage signal can reliably detonate the electronic detonator connected to the wireless electronic detonator receiving device.

[0050] The preset capacitance adjustment strategy corresponding to the wireless electronic detonator receiving device is:

[0051] S200, after the low-frequency electromagnetic wave transmitting device completes the determination of the corresponding target capacitance value, the low-frequency electromagnetic wave transmitting device at this time transmits a signal to the wireless electronic detonator receiving device;

[0052] S201, in the process of the wireless electronic detonator receiving device receiving the transmission signal of the low-frequency electromagnetic wave transmitting device, according to the adjustable capacitance interval corresponding to the wireless electronic detonator receiving device, determining the intermediate capacitance value corresponding to the middle point of the corresponding adjustable capacitance interval, adjusting the capacitance value corresponding to the capacitance tuning box on the wireless electronic detonator receiving device to the intermediate capacitance value, and recording the signal-to-noise ratio corresponding to the receiving antenna corresponding to the adjusted wireless electronic detonator receiving device;

[0053] S202, taking the middle capacitance value corresponding to the middle point as the starting capacitance value, increasing or decreasing the middle capacitance value based on a preset step length, adjusting the capacitance value of the capacitance tuning box corresponding to the wireless electronic detonator receiving device, and recording the signal-to-noise ratio corresponding to the receiving antenna;

[0054] S203, determining a corresponding adjustment direction according to a signal-to-noise ratio corresponding to a preset increment, a signal-to-noise ratio corresponding to a preset decrement, and a signal-to-noise ratio corresponding to an intermediate capacitance value, wherein the adjustment direction includes increasing the capacitance value or decreasing the capacitance value;

[0055] S204, according to the determined adjustment direction, based on the preset step size, adjusting the capacitance value of the intermediate capacitance value in the adjustment direction, and after each adjustment, determining whether the signal-to-noise ratio corresponding to the current adjustment is greater than the signal-to-noise ratio corresponding to the previous adjustment, if so, continuing with the next adjustment, otherwise, determining that the capacitance value corresponding to the current adjustment exceeds the target capacitance value, and the target capacitance value is between the capacitance value corresponding to the current adjustment and the capacitance value corresponding to the previous adjustment;

[0056] S205, when it is determined that the target capacitance value is between the capacitance value corresponding to the current adjustment and the capacitance value corresponding to the previous adjustment, a fine adjustment step is set in the interval corresponding to the capacitance value corresponding to the current adjustment and the capacitance value corresponding to the previous adjustment, and the signal-to-noise ratio of the receiving antenna is recorded after each fine adjustment, and the capacitance value with the largest signal-to-noise ratio of the corresponding receiving antenna is selected to determine whether the corresponding signal-to-noise ratio of the receiving antenna meets the corresponding debugging requirements. If so, it is used as the target capacitance value of the wireless electronic detonator receiving device, otherwise S205 is re-executed and the fine adjustment step is adjusted. The adjustment requirement corresponding to the wireless electronic detonator receiving device is that the signal-to-noise ratio corresponding to the receiving antenna is greater than the preset signal-to-noise ratio. In this embodiment, the corresponding preset signal-to-noise ratio is that the voltage signal received by the receiving antenna is greater than 5 times the voltage signal of the noise, so that the received signal is not affected by the noise and reliable detonation is achieved. In this embodiment, each time the fine adjustment step is adjusted, the fine adjustment step of the next time will be smaller than the fine adjustment step of the previous time.

[0057] S3. After the adjusted capacitance values ​​meet the corresponding debugging requirements, the capacitance tuning boxes on the low-frequency electromagnetic wave antenna transmitting device and the wireless electronic detonator receiving device are replaced with capacitors with corresponding capacitance values.

[0058] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is described too much here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can know all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A tuning and matching method for a low-frequency electromagnetic wave antenna and a wireless electronic detonator receiving device, characterized in that: The following steps are involved: S1. Determine the corresponding capacitor access points on the low-frequency electromagnetic wave antenna transmitting device and the wireless electronic detonator receiving device; S2. Connect the corresponding capacitor tuning box to the capacitor access point, and adjust the capacitance values ​​corresponding to the capacitor access points on the low-frequency electromagnetic wave antenna transmitting device and the wireless electronic detonator receiving device in turn based on the corresponding preset capacitor adjustment strategies and corresponding debugging requirements, until the adjusted capacitance values ​​meet the corresponding debugging requirements; S3. After the adjusted capacitance values ​​meet the corresponding debugging requirements, the capacitance tuning boxes on the low-frequency electromagnetic wave antenna transmitting device and the wireless electronic detonator receiving device are replaced with capacitors with corresponding capacitance values.

2. The tuning and matching method of the low-frequency electromagnetic wave antenna and the wireless electronic detonator receiving device according to claim 1 is characterized in that: The preset capacitance adjustment strategy corresponding to the low-frequency electromagnetic wave antenna transmitting device is: S20, according to the capacitance adjustable interval corresponding to the low-frequency electromagnetic wave antenna transmitting device, dividing the corresponding capacitance adjustable interval into a plurality of uniform sub-adjustment intervals; S21, randomly selecting a first reference capacitance value R in the corresponding sub-adjustment interval in sequence according to the order of each sub-adjustment interval. i and adjust the capacitance value corresponding to the capacitance tuning box on the low-frequency electromagnetic wave antenna transmitting device to the corresponding first reference capacitance value R i ; S22, after the capacitance value corresponding to the capacitance tuning box is adjusted, the voltage value and current value corresponding to the transmitting coil in the low-frequency electromagnetic wave antenna transmitting device are monitored and collected, and the corresponding first reference capacitance value R is calculated based on the monitored voltage value and current value. i The output power corresponding to the lower transmitting coil; S23, according to the first reference capacitance value R corresponding to each sub-adjustment interval i The output power corresponding to the lower transmitting coil is used to determine the first reference capacitance value R with the largest corresponding output power. z , and the adjacent first reference capacitance value R corresponding to the first reference capacitance value with the largest output power z+1 , R z-1 ; S24. Based on the first reference capacitance value with the largest output power, respectively add and reduce the preset capacitance value to form the corresponding second capacitance value and third capacitance value, monitor and collect the voltage value and current value corresponding to the transmitting coil in the low-frequency electromagnetic wave antenna transmitting device, and calculate the output power corresponding to the transmitting coil under the corresponding second capacitance value and third capacitance value according to the monitored voltage value and current value, and judge whether the output power corresponding to the corresponding second capacitance value and third capacitance value is greater than the output power of the first reference capacitance value according to the obtained output power corresponding to the second capacitance value, the third capacitance value and the first reference capacitance value; If the output power of the transmitting coil under the second capacitance value is greater than the output power of the transmitting coil under the first reference capacitance value, it is determined that the corresponding target capacitance value is in the target interval [R z-1 ,R z ], otherwise, it is [R z ,R z+1 ]; According to the determined target interval, based on the preset capacitance adjustment value, the preset capacitance adjustment value is adjusted in the target interval in turn, and by monitoring and collecting the voltage and current values ​​corresponding to the transmitting coil in the low-frequency electromagnetic wave antenna transmitting device, the output power corresponding to each adjusted capacitance value is calculated, and the capacitance value with the largest output power at this time is selected as the target capacitance value corresponding to the low-frequency electromagnetic wave antenna transmitting device.

3. The tuning and matching method of the low-frequency electromagnetic wave antenna and the wireless electronic detonator receiving device according to claim 2 is characterized in that: The preset capacitance adjustment strategy corresponding to the wireless electronic detonator receiving device is: S200, after the low-frequency electromagnetic wave transmitting device completes the determination of the corresponding target capacitance value, the low-frequency electromagnetic wave transmitting device at this time transmits a signal to the wireless electronic detonator receiving device; S201, in the process of the wireless electronic detonator receiving device receiving the transmission signal of the low-frequency electromagnetic wave transmitting device, according to the adjustable capacitance interval corresponding to the wireless electronic detonator receiving device, determining the intermediate capacitance value corresponding to the middle point of the corresponding adjustable capacitance interval, adjusting the capacitance value corresponding to the capacitance tuning box on the wireless electronic detonator receiving device to the intermediate capacitance value, and recording the signal-to-noise ratio corresponding to the receiving antenna corresponding to the adjusted wireless electronic detonator receiving device; S202, taking the middle capacitance value corresponding to the middle point as the starting capacitance value, increasing or decreasing the middle capacitance value based on a preset step length, adjusting the capacitance value of the capacitance tuning box corresponding to the wireless electronic detonator receiving device, and recording the signal-to-noise ratio corresponding to the receiving antenna; S203, determining a corresponding adjustment direction according to a signal-to-noise ratio corresponding to a preset increment, a signal-to-noise ratio corresponding to a preset decrement, and a signal-to-noise ratio corresponding to an intermediate capacitance value, wherein the adjustment direction includes increasing the capacitance value or decreasing the capacitance value; S204, according to the determined adjustment direction, based on the preset step size, adjusting the capacitance value of the intermediate capacitance value in the adjustment direction, and after each adjustment, determining whether the signal-to-noise ratio corresponding to the current adjustment is greater than the signal-to-noise ratio corresponding to the previous adjustment, if so, continuing with the next adjustment, otherwise, determining that the capacitance value corresponding to the current adjustment exceeds the target capacitance value, and the target capacitance value is between the capacitance value corresponding to the current adjustment and the capacitance value corresponding to the previous adjustment; S205. When it is determined that the target capacitance value is between the capacitance value corresponding to the current adjustment and the capacitance value corresponding to the previous adjustment, a fine adjustment step is set in the interval corresponding to the capacitance value corresponding to the current adjustment and the capacitance value corresponding to the previous adjustment, and the signal-to-noise ratio of the receiving antenna is recorded after each fine adjustment, and the capacitance value with the largest signal-to-noise ratio of the corresponding receiving antenna is selected to determine whether the corresponding signal-to-noise ratio of the receiving antenna meets the corresponding debugging requirements. If so, it is used as the target capacitance value of the wireless electronic detonator receiving device. Otherwise, S205 is re-executed and the fine adjustment step is adjusted.

4. The tuning and matching method of the low-frequency electromagnetic wave antenna and the wireless electronic detonator receiving device according to claim 3 is characterized in that: The adjustment requirement corresponding to the wireless electronic detonator receiving device is that the signal-to-noise ratio corresponding to the receiving antenna is greater than a preset signal-to-noise ratio.

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