Annular transmitting antenna and method for improving reliability of wireless through-the-earth detonation electronic detonator

Abstract

The invention relates to the technical field of electronic detonators, and discloses an annular transmitting antenna and method for improving the reliability of a wireless through-the-earth detonating electronic detonator, and the method comprises the steps: drilling a hole in a to-be-detonated site, and placing the wireless through-the-earth detonating electronic detonator in the hole; determining a placement position corresponding to the low-frequency signal transmitting device, arranging an antenna rotating frame at the corresponding placement position, and mounting the small-diameter annular transmitting antenna on the antenna rotating frame; various types of sensors are arranged at the positions of the wireless through-the-earth detonation electronic detonator and the low-frequency signal transmitting device; sending the sensor data collected by each type of sensor to a server in real time, processing the received sensor data by the server, and extracting corresponding key features; the server outputs an optimal transmitting angle corresponding to the corresponding small-diameter annular transmitting antenna according to the extracted key features; and the small-diameter annular transmitting antenna on the antenna rotating frame is controlled to rotate.

Description

Technical Field

[0001] The invention relates to the technical field of electronic detonators, and in particular to a ring-shaped transmitting antenna and a method for improving the reliability of wireless through-the-ground detonating electronic detonators. Background Art

[0002] In many fields such as modern engineering construction and mining, blasting is a key construction link, and the reliability of electronic detonators is directly related to the safety and efficiency of the entire blasting project. Traditional wired detonation methods have many disadvantages. For example, in complex construction environments, wiring work is cumbersome and easily interfered by external factors. For example, in mountainous terrain, cables may be damaged by rock rolling and terrain undulations, resulting in interruption of detonation signal transmission, affecting the blasting process and even causing safety accidents.

[0003] With the development of wireless communication technology, wireless detonation technology has emerged. Among them, wireless ground-penetrating electronic detonator technology has unique application advantages. It can overcome terrain obstacles and does not require complicated ground wiring, showing good application prospects in underground engineering and other scenarios. However, the current wireless ground-penetrating electronic detonator technology still faces some severe challenges.

[0004] Existing wireless ground-penetrating detonation systems usually lack effective response mechanisms to these complex factors. In terms of antenna settings, most of them use fixed angles or simple manual adjustments, which cannot optimize the transmission angle in real time according to actual geological and topographic conditions, making it difficult to ensure stable transmission and effective reception of signals in complex environments.

[0005] Based on this, there is an urgent need for a ring-shaped transmitting antenna and method with high reliability of wireless through-the-ground detonating electronic detonators, which can automatically adjust the transmitting angle of the ring-shaped transmitting antenna at different sites to be detonated, thereby improving the detonation reliability of wireless through-the-ground detonating electronic detonators. Summary of the invention

[0006] One of the purposes of the present invention is to provide a ring-shaped transmitting antenna and method for improving the reliability of wireless through-the-ground detonating electronic detonators, which can automatically adjust the transmitting angle of the ring-shaped transmitting antenna at different detonation sites, thereby improving the detonation reliability of wireless through-the-ground detonating electronic detonators.

[0007] In order to achieve the above object, a method for improving the reliability of wireless through-the-ground detonating electronic detonator is provided, comprising the following steps:

[0008] S1. Drilling a hole on the site to be detonated, and placing a wireless ground-penetrating electronic detonator into the hole after the drilling is completed; the miniature receiving antenna in the wireless ground-penetrating electronic detonator is placed horizontally;

[0009] S2. According to the placement position of the wireless through-the-ground detonating electronic detonator and the preset spacing, the placement position corresponding to the low-frequency signal transmitting device for detonating the wireless through-the-ground detonating electronic detonator is determined, an antenna rotating frame is arranged at the corresponding placement position, and a small-diameter annular transmitting antenna in the low-frequency signal transmitting device is installed on the antenna rotating frame;

[0010] S3. Various types of sensors are arranged at the locations where the wireless ground-penetrating electronic detonator and the low-frequency signal transmitting device are located;

[0011] S4, sending the sensor data collected by various types of sensors to the server in real time, and the server processes the received sensor data and extracts corresponding key features;

[0012] S5. The server outputs the optimal transmission angle corresponding to the corresponding small-diameter ring transmitting antenna according to the extracted key features and based on a preset angle prediction model;

[0013] S6, according to the outputted optimal transmission angle corresponding to the small-diameter ring-shaped transmitting antenna, controlling the small-diameter ring-shaped transmitting antenna on the antenna rotating frame to rotate until the angle of the small-diameter ring-shaped transmitting antenna on the antenna rotating frame reaches the corresponding optimal transmission angle and stops rotating;

[0014] S7. After the small-diameter annular transmitting antenna stops rotating, the low-frequency signal transmitting device is started, and the low-frequency signal transmitting device communicates with the wireless ground-penetrating electronic detonator through the small-diameter annular transmitting antenna and the miniature receiving antenna.

[0015] Technical principle and effect of this scheme: In this scheme, after drilling a hole and placing a wireless ground-penetrating electronic detonator at the site to be detonated, its miniature receiving antenna is placed horizontally, which is based on the study of underground signal reception characteristics. The horizontally placed antenna can better adapt to the stratum structure to a certain extent, reduce the signal reception obstacles caused by the mismatch between the antenna direction and the stratum medium, enable the receiving antenna to more effectively capture the low-frequency signal from the ground, and improve the sensitivity and stability of signal reception.

[0016] The purpose of determining the placement of the low-frequency signal transmitter according to the placement of the wireless ground-penetrating electronic detonator and setting up the antenna rotating frame and the small-diameter circular transmitting antenna is to build a reasonable signal transmission space architecture. The determination of the preset spacing comprehensively considers factors such as the effective transmission range of the signal, the attenuation characteristics of the stratum to the signal, and the avoidance of signal interference. Through reasonable layout, it is ensured that the transmitter can send a low-frequency signal of sufficient strength and stability to the electronic detonator at the appropriate position. At the same time, the setting of the antenna rotating frame provides the hardware basis for adjusting the transmission angle according to the actual environment in the future.

[0017] Various types of sensors are installed at key locations of the detonation system, covering multiple aspects such as geology, topography, and environment. Geological sensors such as conductivity sensors, magnetic permeability sensors, and stratum structure sensors can monitor the physical and electromagnetic properties of underground strata in real time, because these properties directly affect the propagation path and attenuation of electromagnetic waves underground. After the data collected by the sensors is transmitted to the server in real time, the server uses data processing algorithms and statistical methods to process and extract key features.

[0018] After the server receives the sensor data and extracts the key features, it inputs them into the trained angle prediction model. After complex internal calculations and reasoning, the model outputs the optimal transmission angle of the small-diameter ring transmitting antenna. Then, based on the output angle information, the control system sends control instructions to the drive motor of the antenna rotating frame. The drive motor rotates the antenna accurately according to the instructions until the optimal transmission angle is reached. The entire process realizes automated and intelligent angle adjustment, ensuring that the transmitting antenna can send signals to the electronic detonator at the optimal angle, improving signal transmission efficiency and the success rate of detonation.

[0019] By precisely adjusting the angle of the transmitting antenna, the interference of complex geological terrain and environmental factors on the detonation signal can be effectively overcome. In areas with unfavorable geological conditions such as underground caves, faults or highly conductive strata, as well as environments with large terrain fluctuations or strong surrounding electromagnetic interference, this method can timely adjust the transmission angle according to the information fed back by the sensor, so that the signal bypasses obstacles, reduces attenuation and avoids interference, ensuring that the wireless through-the-ground detonation electronic detonator can receive a signal of sufficient strength and stability, thereby greatly reducing the risk of refusal or misfire and improving the reliability of detonation.

[0020] The setting of multiple types of sensors and the intelligent angle adjustment mechanism based on their data enable the system to adapt well to different geological and topographical environments. Whether in high-conductivity clay areas, low-conductivity sandstone areas, or in sites with different terrains such as mountainous areas and plains, as well as areas with complex surrounding electromagnetic environments in urban construction, the system can automatically adjust the transmitting antenna angle according to environmental characteristics to ensure the normal operation of the detonation system. This environmental adaptability makes this method have a wide range of application prospects in various blasting projects, and improves the versatility and practicality of wireless ground penetration detonation technology.

[0021] The entire process realizes automated and intelligent operation, reducing errors caused by manual intervention and human judgment. From sensor data collection and processing to launch angle prediction and antenna rotation control, all are automatically completed by the system, which improves the accuracy and efficiency of the operation. Compared with the traditional method of manually adjusting the angle of the transmitting antenna or setting it based on experience, this method can complete the angle adjustment in a short time, saving a lot of time and labor costs, and also improving the standardization and normalization of the detonation operation. The launch angle of the circular transmitting antenna is automatically adjusted at different sites to be detonated, thereby improving the detonation reliability of wireless ground-penetrating electronic detonators.

[0022] Further, the S3 includes:

[0023] S30, determining the transmission difficulty corresponding to the signal transmitted by the low-frequency signal transmitting device to the wireless through-the-earth detonating electronic detonator according to the depth of the borehole where the wireless through-the-earth detonating electronic detonator is located and the distance value between the wireless through-the-earth detonating electronic detonator and the low-frequency signal transmitting device;

[0024] S31, determining a corresponding transmission attenuation degree according to the transmission difficulty corresponding to the transmission of the signal by the low-frequency signal transmitting device to the wireless through-the-earth detonating electronic detonator;

[0025] S32, according to the corresponding emission attenuation degree, determining the signal type area corresponding to the site to be detonated, and according to the signal type area corresponding to the site to be detonated, retrieving the sensor arrangement strategy corresponding to the corresponding signal type area, wherein the signal type area includes a stable signal area, an attenuation transition area, and a high attenuation risk area;

[0026] S33. According to the retrieved corresponding sensor arrangement strategy, corresponding sensors are arranged at the locations where the wireless through-the-ground detonating electronic detonator and the low-frequency signal transmitting device are located.

[0027] Beneficial effects: By comprehensively considering the drilling depth and the spacing between the transceivers to determine the launch difficulty and attenuation, the signal transmission characteristics of the site to be detonated can be more accurately reflected. Compared with the traditional fixed or empirical sensor layout method, this analysis method based on actual signal transmission conditions makes the sensor layout more targeted. For example, when the drilling depth is large and the spacing between the transceivers is far, it may be judged as a high attenuation risk area. At this time, the system will automatically call the sensor layout strategy corresponding to the area to ensure that it can fully capture the factors that may affect the detonation signal, effectively improving the utilization efficiency of sensor resources and avoiding over-configuration in low-risk areas and under-configuration in high-risk areas.

[0028] The sensor layout can be dynamically adjusted according to different signal type zones, so that the detonation system can better adapt to the complex and changeable geological and geographical environment. In actual detonation operations, the geological conditions (such as the conductivity, magnetic permeability, porosity, etc. of the strata) and topography (such as slope, height difference, obstacle distribution, etc.) of different sites vary greatly. These factors will have different degrees of impact on the detonation signal. This solution ensures that the appropriate sensor support can be provided for the detonation system under any site conditions by analyzing the emission attenuation and dividing the signal type zones.

[0029] Operators only need to install the corresponding sensors at the designated locations according to the system prompts, without having to have deep professional knowledge and rich experience to determine the specific layout of the sensors. This simplifies the operation process and reduces errors and uncertainties caused by human factors. At the same time, due to the rationality and effectiveness of the sensor layout, relevant data can be obtained more quickly and accurately during the detonation process, providing strong support for timely judgment of the status of the detonation system and adjustment of parameters, further optimizing the entire detonation operation process, saving time and labor costs, and improving production efficiency.

[0030] Furthermore, the sensor layout strategies corresponding to the various signal type areas are:

[0031] According to the depth of the borehole where the wireless ground-penetrating electronic detonator is located and the corresponding position of the low-frequency signal transmitting device, the stratum between the wireless ground-penetrating electronic detonator and the low-frequency signal transmitting device is divided into three layers based on a preset division ratio, which are shallow layer, middle layer and deep layer from top to bottom, and the heights of the three layers are the same as the depth of the borehole;

[0032] When the signal type area is a stable signal area, the corresponding sensor quantity setting percentages for the shallow layer, middle layer, and deep layer are A1%, B1%, and C1% respectively;

[0033] When the signal type zone is the attenuation transition zone, the corresponding sensor quantity setting percentages for the shallow layer, middle layer, and deep layer are A2%, B2%, and C2% respectively;

[0034] When the signal type area is a high attenuation risk area, the corresponding sensor quantity setting percentages for the shallow, middle and deep layers are A3%, B3% and C3% respectively; among which A1%>A2%>A3%, B1% <B3%<B2%,C1%<C2%<C3%;

[0035] According to the percentage of the number of sensors corresponding to each layer corresponding to the corresponding signal type area, based on the preset sensor number value corresponding to each signal type area, the number of sensors corresponding to each layer is determined, and the sensors of each layer are set according to the preset setting density.

[0036] Beneficial effects: The number of sensors is set differently in the shallow, middle and deep layers according to the different characteristics of the signal type area, realizing the refined allocation of sensor resources. In the stable signal area, since the signal transmission is relatively stable, more sensors are set in the shallow layer (A1% is the largest), which can focus on the slight impact of near-surface environmental factors (such as soil moisture, temperature, and slight changes in shallow geology, etc.) on the signal, while the number of sensors is relatively reduced in the middle and deep layers (B1% and C1% are smaller), avoiding waste of resources. This strategy of setting the number of sensors in layers is consistent with the actual impact of different strata on signal attenuation. In the shallow layer, environmental factors are relatively variable, but the degree of influence on the signal is relatively large in the stable signal area, and may be relatively small in the high attenuation risk area. Through reasonable adjustment of the sensor ratio, effective monitoring of the shallow layer can be achieved in different signal type areas.

[0037] Further, the rotating frame includes a rotating base, and first vertical rods are arranged on both sides of the rotating base, and first motors are arranged on opposite sides of the two first vertical rods, and the motor shafts of the two first motors are provided with fixing parts for fixing the small-diameter ring transmitting antenna;

[0038] It also includes a first controller and a first communication module; the first controller is electrically connected to the first communication module and the first motor respectively, and the first controller is communicatively connected to the service end through the first communication module.

[0039] Beneficial effects: The rotating base and the first vertical rods on both sides form a stable frame structure, providing a solid support foundation for the small-diameter ring transmitting antenna. This design can effectively resist external interference factors such as vibration and wind, ensure the stability of the antenna during operation, and reduce the signal transmission deviation caused by the shaking of the antenna. For example, in places with complex environments such as construction sites or mines, where there are certain mechanical vibrations and airflow interference, the stable rotating frame structure can ensure that the antenna always remains at the predetermined position and angle, maintaining the accuracy and consistency of signal transmission.

[0040] As the core control unit, the first controller can receive instructions from the server and accurately control the operation of the first motor, realizing the automatic and intelligent management of antenna rotation. Through the connection between the first communication module and the server, the rotating frame can respond in real time to the optimal transmission angle information calculated by the server based on sensor data and angle prediction model, without manual on-site intervention, thus improving the convenience and accuracy of operation.

[0041] The two first motors drive the small diameter annular transmitting antenna to rotate through the fixed parts on the motor shaft, respectively, to achieve precise adjustment of the antenna angle. Compared with manual adjustment or simple mechanical transmission, the motor drive has higher accuracy and response speed, and can quickly and accurately rotate the antenna to the optimal transmission angle calculated by the service end. In the case where the antenna angle needs to be adjusted frequently to adapt to different geological conditions and detonation locations, this design greatly improves work efficiency and reduces adjustment time, thereby speeding up the overall process of the detonation operation.

[0042] The present invention also provides a ring-shaped transmitting antenna for improving the reliability of wireless through-the-ground detonating electronic detonators, which is applied to the above-mentioned method for improving the reliability of wireless through-the-ground detonating electronic detonators. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a flow chart of a method for improving the reliability of wireless through-the-ground detonating electronic detonators in Embodiment 1 of the present invention;

[0044] Figure 2 It is a schematic diagram of the structure of the rotating frame in the first embodiment of the present invention. DETAILED DESCRIPTION

[0045] The following is further described in detail through specific implementation methods:

[0046] The symbols in the drawings of the specification include: a rotating base 1 , a first vertical rod 2 , a first motor 3 , and a fixing part 4 .

[0047] Embodiment 1

[0048] A method for improving the reliability of wireless ground-penetrating electronic detonators, basically as follows Figure 1 As shown, the following steps are included:

[0049] S1. Drilling a hole on the site to be detonated, and placing a wireless ground-penetrating electronic detonator into the hole after the drilling is completed; the miniature receiving antenna in the wireless ground-penetrating electronic detonator is placed horizontally;

[0050] S2. According to the placement position of the wireless through-the-ground detonating electronic detonator and the preset spacing, the placement position corresponding to the low-frequency signal transmitting device for detonating the wireless through-the-ground detonating electronic detonator is determined, an antenna rotating frame is arranged at the corresponding placement position, and a small-diameter annular transmitting antenna in the low-frequency signal transmitting device is installed on the antenna rotating frame; Figure 2As shown, the rotating frame includes a rotating base 1, and first vertical rods 2 are arranged on the left and right sides of the rotating base 1, and first motors 3 are arranged on the opposite sides of the two first vertical rods 2. The motor shafts of the two first motors 3 are provided with fixing parts 4 for fixing the small-diameter ring-shaped transmitting antenna; in this embodiment, the fixing part 4 is fixed by providing a card slot to fix the small-diameter ring-shaped transmitting antenna.

[0051] It also includes a first controller and a first communication module; the first controller is electrically connected to the first communication module and the first motor 3 respectively, and the first controller is communicatively connected to the service end through the first communication module.

[0052] The first controller is used to receive the control instruction fed back from the server through the first communication module, that is, the corresponding optimal transmission angle, and then control the first motor 3 to rotate so that the angle between the small diameter ring transmitting antenna and the vertical direction is the corresponding optimal transmission angle.

[0053] S3. Various types of sensors are set at the locations where the wireless ground-penetrating electronic detonators and low-frequency signal transmitting devices are located; in this embodiment, the corresponding sensors include conductivity sensors, magnetic permeability sensors, geological radar sensors, temperature and humidity sensors, and electromagnetic interference monitoring sensors.

[0054] The S3 includes:

[0055] S30, determining the transmission difficulty corresponding to the signal transmitted by the low-frequency signal transmitting device to the wireless through-the-earth detonating electronic detonator according to the depth of the borehole where the wireless through-the-earth detonating electronic detonator is located and the distance value between the wireless through-the-earth detonating electronic detonator and the low-frequency signal transmitting device;

[0056] S31, determining a corresponding transmission attenuation degree according to the transmission difficulty corresponding to the transmission of the signal by the low-frequency signal transmitting device to the wireless through-the-earth detonating electronic detonator;

[0057] S32, according to the corresponding emission attenuation degree, determining the signal type area corresponding to the site to be detonated, and according to the signal type area corresponding to the site to be detonated, retrieving the sensor arrangement strategy corresponding to the corresponding signal type area, wherein the signal type area includes a stable signal area, an attenuation transition area, and a high attenuation risk area;

[0058] The sensor layout strategies corresponding to each signal type area are:

[0059] According to the depth of the borehole where the wireless ground-penetrating electronic detonator is located and the corresponding position of the low-frequency signal transmitting device, the stratum between the wireless ground-penetrating electronic detonator and the low-frequency signal transmitting device is divided into three layers based on a preset division ratio, which are shallow layer, middle layer and deep layer from top to bottom, and the heights of the three layers are the same as the depth of the borehole;

[0060] When the signal type area is a stable signal area, the corresponding sensor quantity setting percentages for the shallow layer, middle layer, and deep layer are A1%, B1%, and C1% respectively;

[0061] When the signal type zone is the attenuation transition zone, the corresponding sensor quantity setting percentages for the shallow layer, middle layer, and deep layer are A2%, B2%, and C2% respectively;

[0062] When the signal type area is a high attenuation risk area, the corresponding sensor quantity setting percentages for the shallow, middle and deep layers are A3%, B3% and C3% respectively; among which A1%>A2%>A3%, B1% <B3%<B2%,C1%<C2%<C3%;

[0063] According to the percentage of the number of sensors corresponding to each layer corresponding to the corresponding signal type area, based on the preset sensor number value corresponding to each signal type area, the number of sensors corresponding to each layer is determined, and the sensors of each layer are set according to the preset setting density.

[0064] S33. According to the retrieved corresponding sensor arrangement strategy, corresponding sensors are arranged at the locations where the wireless through-the-ground detonating electronic detonator and the low-frequency signal transmitting device are located.

[0065] S4. The sensor data collected by each type of sensor is sent to the server in real time. The server processes the received sensor data and extracts the corresponding key features. In this embodiment, the sensor data is preprocessed before the key features are extracted to achieve preliminary screening of the sensor data.

[0066] When extracting specific key features, the sensor data corresponding to each sensor is mainly used. For example, for the data corresponding to the conductivity sensor, the statistical characteristics of conductivity, such as the average value, maximum value, minimum value, variance and gradient, are calculated. The average value reflects the overall conductivity of the formation, the variance indicates the degree of change in conductivity, and the gradient can reflect the trend of conductivity changes at different locations. These characteristics help to understand the overall situation and local changes of signal attenuation.

[0067] S5. The server outputs the optimal transmission angle corresponding to the small-diameter circular transmitting antenna according to the extracted key features and based on the preset angle prediction model; in this embodiment, the angle prediction model is constructed using BP neural network technology. Specifically, a three-layer BP neural network model is first constructed, including an input layer, a hidden layer and an output layer. The key features extracted from the sensor data corresponding to the conductivity sensor, the magnetic permeability sensor, the geological radar sensor, the temperature and humidity sensor, and the electromagnetic interference monitoring sensor are used as the input of the input layer. For example, if there are 8 key features, then there are 8 nodes in the corresponding output layer, and the output is the corresponding optimal transmission angle. Therefore, the output layer has 1 node. For the hidden layer, this embodiment uses the following formula to determine the number of hidden layer nodes: Where l is the number of nodes in the hidden layer, n is the number of nodes in the input layer, m is the number of nodes in the output layer, and A is a number between 1 and 10. In this embodiment, it is taken as 6, so there are 10 nodes in the hidden layer. BP neural network usually uses Sigmoid differentiable function and linear function as the excitation function of the network. This paper selects the S-type tangent function tansig as the excitation function of the hidden layer neurons. The prediction model selects the S-type logarithmic function tansig as the excitation function of the output layer neurons.

[0068] S6, according to the outputted optimal transmission angle corresponding to the small-diameter ring-shaped transmitting antenna, controlling the small-diameter ring-shaped transmitting antenna on the antenna rotating frame to rotate until the angle of the small-diameter ring-shaped transmitting antenna on the antenna rotating frame reaches the corresponding optimal transmission angle and stops rotating;

[0069] S7. After the small-diameter annular transmitting antenna stops rotating, the low-frequency signal transmitting device is started, and the low-frequency signal transmitting device communicates with the wireless ground-penetrating electronic detonator through the small-diameter annular transmitting antenna and the micro-receiving antenna. In this embodiment, the low-frequency signal transmitting device includes a second controller, a second communication module, a power amplifier, a high-voltage capacitor resonator and a small-diameter annular transmitting antenna, and the second controller is electrically connected to the second communication module, the power amplifier, the high-voltage capacitor resonator and the small-diameter annular transmitting antenna respectively; the wireless ground-penetrating electronic detonator includes a third controller, a micro-receiving antenna and an electronic detonator, and the third controller is electrically connected to the micro-receiving antenna and the electronic detonator respectively; the low-frequency signal transmitting device transmits a low-frequency signal to the wireless ground-penetrating electronic detonator through the small-diameter annular transmitting antenna, and the wireless ground-penetrating electronic detonator receives the corresponding low-frequency signal through the micro-receiving antenna and converts it into a digital signal, and determines whether to detonate the electronic detonator through the digital signal, and if so, detonates the electronic detonator.

[0070] This embodiment also discloses a ring-shaped transmitting antenna for improving the reliability of wireless through-the-earth detonating electronic detonators, which is applied to the above-mentioned method for improving the reliability of wireless through-the-earth detonating electronic detonators.

[0071] 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 method for improving the reliability of wireless through-the-ground detonating electronic detonators, characterized in that: The following steps are involved: S1. Drilling a hole on the site to be detonated, and placing a wireless ground-penetrating electronic detonator into the hole after the drilling is completed; the miniature receiving antenna in the wireless ground-penetrating electronic detonator is placed horizontally; S2. According to the placement position of the wireless through-the-ground detonating electronic detonator and the preset spacing, the placement position corresponding to the low-frequency signal transmitting device for detonating the wireless through-the-ground detonating electronic detonator is determined, an antenna rotating frame is arranged at the corresponding placement position, and a small-diameter annular transmitting antenna in the low-frequency signal transmitting device is installed on the antenna rotating frame; S3. Various types of sensors are arranged at the locations where the wireless ground-penetrating electronic detonator and the low-frequency signal transmitting device are located; S4, sending the sensor data collected by various types of sensors to the server in real time, and the server processes the received sensor data and extracts corresponding key features; S5. The server outputs the optimal transmission angle corresponding to the corresponding small-diameter ring transmitting antenna according to the extracted key features and based on a preset angle prediction model; S6, according to the outputted optimal transmission angle corresponding to the small-diameter ring-shaped transmitting antenna, controlling the small-diameter ring-shaped transmitting antenna on the antenna rotating frame to rotate until the angle of the small-diameter ring-shaped transmitting antenna on the antenna rotating frame reaches the corresponding optimal transmission angle and stops rotating; S7. After the small-diameter annular transmitting antenna stops rotating, the low-frequency signal transmitting device is started, and the low-frequency signal transmitting device communicates with the wireless ground-penetrating electronic detonator through the small-diameter annular transmitting antenna and the miniature receiving antenna.

2. A method for improving the reliability of wireless through-the-ground detonating electronic detonators according to claim 1, characterized in that: The S3 includes: S30, determining the transmission difficulty corresponding to the signal transmitted by the low-frequency signal transmitting device to the wireless through-the-earth detonating electronic detonator according to the depth of the borehole where the wireless through-the-earth detonating electronic detonator is located and the distance value between the wireless through-the-earth detonating electronic detonator and the low-frequency signal transmitting device; S31, determining a corresponding transmission attenuation degree according to the transmission difficulty corresponding to the transmission of the signal by the low-frequency signal transmitting device to the wireless through-the-earth detonating electronic detonator; S32, according to the corresponding emission attenuation degree, determining the signal type area corresponding to the site to be detonated, and according to the signal type area corresponding to the site to be detonated, retrieving the sensor arrangement strategy corresponding to the corresponding signal type area, wherein the signal type area includes a stable signal area, an attenuation transition area, and a high attenuation risk area; S33. According to the retrieved corresponding sensor arrangement strategy, corresponding sensors are arranged at the locations where the wireless through-the-ground detonating electronic detonator and the low-frequency signal transmitting device are located.

3. A method for improving the reliability of wireless through-the-ground detonating electronic detonators according to claim 2, characterized in that: The sensor layout strategies corresponding to each signal type area are: According to the depth of the borehole where the wireless ground-penetrating electronic detonator is located and the corresponding position of the low-frequency signal transmitting device, the stratum between the wireless ground-penetrating electronic detonator and the low-frequency signal transmitting device is divided into three layers based on a preset division ratio, which are shallow layer, middle layer and deep layer from top to bottom, and the heights of the three layers are the same as the depth of the borehole; When the signal type area is a stable signal area, the corresponding sensor quantity setting percentages for the shallow layer, middle layer, and deep layer are A1%, B1%, and C1% respectively; When the signal type zone is the attenuation transition zone, the corresponding sensor quantity setting percentages for the shallow layer, middle layer, and deep layer are A2%, B2%, and C2% respectively; When the signal type area is a high attenuation risk area, the corresponding sensor quantity setting percentages for the shallow, middle and deep layers are A3%, B3% and C3% respectively; among which A1%>A2%>A3%, B1% <B3%<B2%,C1%<C2%<C3%; According to the percentage of the number of sensors corresponding to each layer corresponding to the corresponding signal type area, based on the preset sensor number value corresponding to each signal type area, the number of sensors corresponding to each layer is determined, and the sensors of each layer are set according to the preset setting density.

4. A method for improving the reliability of wireless through-the-ground detonating electronic detonators according to claim 3, characterized in that: The rotating frame includes a rotating base, first vertical rods are arranged on both sides of the rotating base, first motors are arranged on opposite sides of the two first vertical rods, and fixing parts for fixing the small-diameter ring transmitting antenna are arranged on the motor shafts of the two first motors; It also includes a first controller and a first communication module; the first controller is electrically connected to the first communication module and the first motor respectively, and the first controller is communicatively connected to the service end through the first communication module.

5. A ring-shaped transmitting antenna for improving the reliability of wireless through-the-ground detonating electronic detonators, characterized in that: A method for improving the reliability of wireless through-the-ground detonating electronic detonators applied to any one of claims 1 to 4 above.

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