Electronic detonator multi-contact delay network intelligent synchronization system and method

Abstract

The invention discloses an electronic detonator multi-contact delay network intelligent synchronization system and method, and relates to the technical field of electronic detonator blasting communication and delay synchronization control. The intelligent synchronization method for the multi-contact delay network of the electronic detonators comprises the following steps: acquiring a set explosion delay value, electric drive balance data, contact dynamic data and disturbance fluctuation data at each electronic detonator contact in real time, and respectively analyzing an electric drive synchronization factor, a dynamic response regulation factor and a synchronization error prediction factor at each electronic detonator contact; and calculating a synchronous adjustment value at the contact of each electronic detonator, analyzing an explosion delay adjustment value at the contact of each electronic detonator by combining a set explosion delay value at the contact of the corresponding electronic detonator, and correspondingly inputting the explosion delay adjustment value to the contact of the corresponding electronic detonator. According to the method, the actual operation state of each electronic detonator contact is synchronously obtained before explosion, a complete physical data chain is formed, and prediction and correction of the delay difference in the whole network range are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic detonator blasting communication and delay synchronization control, and specifically to an intelligent synchronization system and method for an electronic detonator multi-contact delay network. Background Art

[0002] As a key execution unit in modern blasting engineering, electronic detonators are widely used in high-precision blasting scenarios such as mine exploitation, tunnel excavation, water conservancy projects, and military fields. Compared with traditional detonating cords or ordinary electric detonators, electronic detonators have significant advantages such as high delay time accuracy, flexible programming, and strong safety, and are particularly suitable for requirements such as multi-point simultaneous control and multi-segment blasting in complex terrains.

[0003] With the expansion of the scale of blasting tasks and the improvement of the requirements for operation refinement, the synchronous control of multi-contact detonators has become one of the core technologies to ensure blasting effects and construction safety. However, in practical applications, due to factors such as electrical state fluctuations, environmental disturbance effects, uneven conduction paths, and response time differences between the contacts in the blasting network, it is extremely easy to cause asynchronous deviations between the preset delay instructions and the actual explosion actions, resulting in disorders in the detonation sequence, unbalanced energy release, and even the risk of induced structural damage. Therefore, how to achieve high-precision synchronization between multi-contacts of electronic detonators has become one of the key technical difficulties in current blasting control systems.

[0004] Based on the above solutions, it is found that the limitations of the existing technology at least include the following problems. The current electronic detonator blasting systems generally rely on preset fixed delay parameters for trigger control and lack the ability to perceive the real-time states of each contact before explosion and dynamically adjust them. As a result, in the scenario of multi-contact simultaneous operation, there are often deviations between the actual explosion moments and the theoretical time sequences of different detonators. This deviation mainly comes from the instantaneous fluctuations of the electrical drive states between the contacts, the conduction delays of the trigger structures, and the signal transmission differences caused by external disturbances (such as vibrations and electromagnetic interference). Since it is difficult to uniformly calibrate the delays of each contact before explosion by traditional methods and only static delay values set in advance can be relied on, the system appears to be too rigid and lacks adaptability when facing complex on-site environmental changes. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the present invention provides an intelligent synchronization system and method for an electronic detonator multi-contact delay network, which solves the problem in the existing technology that it is difficult to uniformly calibrate the delays of each contact during the multi-contact blasting of electronic detonators, resulting in large synchronization errors.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: An intelligent synchronization method for an electronic detonator multi-contact delay network, comprising the following steps: obtaining in real time the set explosion delay value, electric drive balance data, contact dynamic data, and disturbance fluctuation data at each electronic detonator contact point; based on the electric drive balance data, contact dynamic data, and disturbance fluctuation data at each electronic detonator contact point, respectively analyzing the electric drive synchronization factor, dynamic response adjustment factor, and synchronization error prediction factor at each electronic detonator contact point; based on the electric drive synchronization factor, dynamic response adjustment factor, and synchronization error prediction factor at each electronic detonator contact point, analyzing the synchronization adjustment value at each electronic detonator contact point, and combining with the set explosion delay value at the corresponding electronic detonator contact point, analyzing the explosion delay adjustment value at each electronic detonator contact point, and inputting it corresponding to the corresponding electronic detonator contact point; wherein, the specific formula for calculating the explosion delay adjustment value at each electronic detonator contact point is as follows: ; wherein, is the explosion delay adjustment value at the th electronic detonator contact point, is the set explosion delay value at the th electronic detonator contact point, is the synchronization adjustment value at the th electronic detonator contact point, , is the number of electronic detonators.

[0007] Furthermore, the specific steps for analyzing the synchronization adjustment value at each electronic detonator contact point are as follows: obtaining the synchronization error prediction low threshold and synchronization error prediction high threshold at each electronic detonator contact point; inputting the synchronization error prediction low threshold, synchronization error prediction high threshold, electric drive synchronization factor, dynamic response adjustment factor, and synchronization error prediction factor at each electronic detonator contact point into the delay analysis model respectively to obtain the synchronization adjustment value at each electronic detonator contact point.

[0008] Furthermore, the delay analysis model is specifically as follows: ; wherein, is the synchronization adjustment value at the th electronic detonator contact point, is the electric drive synchronization factor at the th electronic detonator contact point, is the electric drive synchronization influence coefficient stored in the database, is the dynamic response adjustment factor at the th electronic detonator contact point, is the dynamic response influence coefficient stored in the database, is the synchronization error prediction factor at the th electronic detonator contact point, is the The low threshold of synchronous error prediction at the contact point of an electronic detonator is the high threshold of synchronous error prediction at the contact point of the nth electronic detonator, , where n is the number of electronic detonators,

[0009] Further, the electric drive balance data includes the contact drive current value, the contact drive voltage value, the contact line impedance value, and the contact signal transmission delay time.

[0010] Further, the specific steps for analyzing the electric drive synchronization factor at the contact point of each electronic detonator are as follows: Read the contact drive current value, the contact drive voltage value, the contact line impedance value, and the contact signal transmission delay time of the electric drive synchronization factor at the contact point of each electronic detonator, and perform normalization processing respectively; Perform comprehensive analysis on the contact drive current value, the contact drive voltage value, the contact line impedance value, and the contact signal transmission delay time of the electric drive synchronization factor at the contact point of each electronic detonator after normalization processing to obtain the electric drive synchronization factor at the contact point of each electronic detonator.

[0011] Further, the contact dynamic data includes the contact surface temperature value, the contact pulse response delay value, and the contact trigger conduction time.

[0012] Further, the specific steps for analyzing the dynamic response adjustment factor at the contact point of each electronic detonator are as follows: Read the contact surface temperature value, the contact pulse response delay value, and the contact trigger conduction time of the electric drive synchronization factor at the contact point of each electronic detonator, and perform normalization processing respectively; Perform comprehensive analysis on the contact surface temperature value, the contact pulse response delay value, and the contact trigger conduction time at the contact point of each electronic detonator after normalization processing to obtain the dynamic response adjustment factor at the contact point of each electronic detonator.

[0013] Further, the disturbance fluctuation data includes the contact loop electromagnetic interference amplitude, the contact environmental vibration frequency, and the contact displacement disturbance value.

[0014] Further, the specific steps for analyzing the synchronous error prediction factor at the contact point of each electronic detonator are as follows: Read the contact loop electromagnetic interference amplitude, the contact environmental vibration frequency, and the contact displacement disturbance value of the electric drive synchronization factor at the contact point of each electronic detonator, and perform normalization processing respectively; Perform comprehensive analysis on the contact loop electromagnetic interference amplitude, the contact environmental vibration frequency, and the contact displacement disturbance value of the electric drive synchronization factor at the contact point of each electronic detonator after normalization processing to obtain the synchronous error prediction factor at the contact point of each electronic detonator.

[0015] The electronic detonator multi-contact delay network intelligent synchronization system comprises: a data acquisition unit, which is used to acquire the set explosion delay value, electric drive balance data, contact dynamic data and disturbance fluctuation data at each electronic detonator contact in real time; a data analysis unit, which is used to analyze the electric drive synchronization factor, dynamic response adjustment factor and synchronization error prediction factor at each electronic detonator contact based on the electric drive balance data, contact dynamic data and disturbance fluctuation data at each electronic detonator contact; an adjustment analysis unit, which is used to analyze the synchronization adjustment value at each electronic detonator contact based on the electric drive synchronization factor, dynamic response adjustment factor and synchronization error prediction factor at each electronic detonator contact; and a delay synchronization unit, which is used to combine the synchronization adjustment value at each electronic detonator contact with the set explosion delay value at the corresponding electronic detonator contact, analyze the explosion delay adjustment value at each electronic detonator contact, and input the explosion delay adjustment value to the corresponding electronic detonator contact accordingly.

[0016] The present invention has the following beneficial effects: (1) The electronic detonator multi-contact delay network intelligent synchronization method synchronously obtains the actual operating status of each electronic detonator contact before explosion to form a complete physical data chain. Different from the traditional technology of statically controlling the explosion sequence by setting the delay value, this method can dynamically build a synchronization adjustment model based on the instantaneously collected electric drive balance data, such as drive current, voltage, signal delay, etc. and contact dynamic data, such as trigger conduction time, temperature, etc., to achieve the prediction and correction of delay differences in the entire network. Especially in the case of uneven wiring, contact resistance differences, local environmental changes, etc. in the explosion network, this method can still automatically identify the delay error and generate independent adjustment values for the tap point, effectively solving the problems of large delay of far contacts and premature misexplosion of near contacts in the existing system, greatly improving the global synchronization accuracy of the system, and ensuring that the blasting sequence in complex operations is completely consistent.

[0017] (2) The electronic detonator multi-contact delay network intelligent synchronization method introduces disturbance fluctuation data as an independent influencing dimension, designs a disturbance index system with the contact loop electromagnetic interference amplitude, environmental vibration frequency, and displacement disturbance value as the core, and integrates them into a synchronization error prediction factor to participate in the synchronization adjustment decision. Unlike the traditional method that ignores the non-steady-state influence of the explosion environment, this method can quantify the disturbance intensity in a complex environment in real time before the detonator is triggered, and distinguish the response sensitivity in combination with the set threshold. In conjunction with the preset synchronization error prediction low threshold and high threshold, this method performs delay dynamic correction within the safety boundary through piecewise function logic to ensure that the key contacts still have accurate fault tolerance for explosion triggering under abnormal disturbances, significantly enhance the system's explosion stability and anti-false triggering capabilities in complex application scenarios such as strong vibration and interference electromagnetic fields, and effectively prevent safety accidents such as delay mismatch or misorder of explosion points caused by environmental fluctuations.

[0018] (3) The intelligent synchronization method for the multi-contact delay network of electronic detonators breaks through the technical bottleneck of the previous explosion control of electronic detonators, which uniformly distributes set values and globally fixes regulation. By collecting electric drive balance data, contact dynamic data, and disturbance fluctuation data at different points, each contact independently calculates its electric drive synchronization factor and dynamic response adjustment factor based on the physical parameters it collects, and forms an individualized delay adjustment value by combining the synchronization error prediction factor. This realizes the on-demand customization and real-time dynamic correction of the explosion delay for each detonator contact. This differential control mechanism for different points not only avoids the transmission imbalance problem caused by the complexity of the circuit, but also supports the system to flexibly add or delete nodes and adjust the layout path according to needs, greatly improving the engineering adaptability and on-site deployment efficiency of the system while meeting precise control, which is a technical advantage that traditional centralized explosion control methods cannot match.

[0019] (4) The intelligent synchronization system for the multi-contact delay network of electronic detonators constructs a complete intelligent synchronization system architecture for the multi-contact delay network of electronic detonators by setting up a data acquisition unit, a data analysis unit, an adjustment analysis unit, and a delay synchronization unit, realizing the full-process segmented processing and functional decoupling of the explosion control logic. This modular design not only facilitates the rapid deployment and customized adaptation of the system in different application scenarios, but also supports the on-demand upgrade or independent maintenance of each module, greatly reducing the risk of global impact caused by single-point failures during system operation. In addition, the data flow relationship between each functional unit is clear, especially a standardized interface protocol is established between the adjustment analysis and the delay synchronization, enabling the system to still have high robustness and fast response capabilities in the face of complex detonator layout, heterogeneous parameters, or dynamic environmental disturbances. Compared with traditional explosion control systems, this architecture shows significant improvements in terms of scalability, maintainability, and engineering implementation efficiency, and has good systematic engineering implementation value.

[0020] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a flowchart of the intelligent synchronization method for the multi-contact delay network of electronic detonators of the present invention.

[0022] Figure 2 It is a specific step flowchart for analyzing the dynamic response adjustment factor at each electronic detonator contact in the intelligent synchronization method for the multi-contact delay network of electronic detonators of the present invention.

[0023] Figure 3 It is a block diagram of the intelligent synchronization system for the multi-contact delay network of electronic detonators of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] Please refer to Figure 1, an embodiment of the present invention provides a technical solution: an intelligent synchronization method for an electronic detonator multi-contact delay network, including the following steps: obtaining the set explosion delay value, electric drive balance data, contact dynamic data, and disturbance fluctuation data at each electronic detonator contact in real time; based on the electric drive balance data, contact dynamic data, and disturbance fluctuation data at each electronic detonator contact, analyzing the electric drive synchronization factor, dynamic response adjustment factor, and synchronization error prediction factor at each electronic detonator contact respectively; based on the electric drive synchronization factor, dynamic response adjustment factor, and synchronization error prediction factor at each electronic detonator contact, analyzing the synchronization adjustment value at each electronic detonator contact, and combining with the set explosion delay value at the corresponding electronic detonator contact, analyzing the explosion delay adjustment value at each electronic detonator contact, and inputting it correspondingly to the corresponding electronic detonator contact.

[0025] Among them, the specific formula for calculating the explosion delay adjustment value at each electronic detonator contact is as follows: ; where is the explosion delay adjustment value at the th electronic detonator contact, is the set explosion delay value at the th electronic detonator contact, is the synchronization adjustment value at the th electronic detonator contact, , is the number of electronic detonators.

[0026] The specific steps for analyzing the synchronization adjustment value at each electronic detonator contact are as follows: obtaining the synchronization error prediction low threshold and synchronization error prediction high threshold at each electronic detonator contact; inputting the synchronization error prediction low threshold, synchronization error prediction high threshold, electric drive synchronization factor, dynamic response adjustment factor, and synchronization error prediction factor at each electronic detonator contact into the delay analysis model respectively to obtain the synchronization adjustment value at each electronic detonator contact.

[0027] Among them, the specific steps for obtaining the low threshold and high threshold of synchronous error prediction at each electronic detonator contact point are as follows: Select the delay synchronous error values of detonators of the same model in different scenarios to form a high-confidence data set, and eliminate abnormal points; Use the normal distribution fitting or kernel density estimation method to analyze the probability density curve of the error values under actual operating conditions, and extract its statistical distribution characteristics (mean, standard deviation); According to the synchronous accuracy tolerance strategy and the blasting scenario fault tolerance level, set confidence intervals such as 90% or 95%, and determine the lower boundary (as the low threshold of synchronous error prediction) and the upper boundary (as the high threshold of synchronous error prediction) respectively, indicating that it is the "acceptable synchronous error range" within this interval; Fine-tune the threshold in combination with real-time stability feedback: Introduce device stability indices (such as current volatility, vibration frequency stability, etc.) to slightly adjust the low threshold and high threshold of synchronous error prediction to form the final low and high thresholds for cycle judgment of this contact point.

[0028] The delay analysis model is specifically as follows: ; Among them, is the synchronous adjustment value at the th electronic detonator contact point, is the electric drive synchronization factor at the th electronic detonator contact point, is the electric drive synchronization influence coefficient stored in the database, is the dynamic response adjustment factor at the th electronic detonator contact point, is the dynamic response influence coefficient stored in the database, is the synchronous error prediction factor at the th electronic detonator contact point, is the low threshold of synchronous error prediction at the th electronic detonator contact point, is the high threshold of synchronous error prediction at the th electronic detonator contact point, is the safety compensation constant stored in the database, , is the number of electronic detonators.

[0029] It should be noted that the electric drive synchronization influence coefficient , the dynamic response influence coefficient , and the safety compensation constant The specific acquisition steps are as follows: First, select representative typical detonator node working condition samples, including various combined scenarios such as normal temperature, low temperature, high temperature, vibration disturbance, electromagnetic interference, etc., and record physical parameters such as contact drive current, voltage, line impedance, pulse response time, etc. under each working condition; then, based on the deviation between the actual delay error calculated from each working condition sample and the ideal delay value, use the multi-variable regression analysis method to fit the functional relationship between the electric drive parameters and the error respectively, extract the regression sensitivity coefficient, and obtain and ; then perform clustering statistics on the error residual part, determine the minimum compensation requirement of the system error under extreme conditions, and set the maximum residual mean value as the safety compensation constant .

[0030] Specifically, the electric drive balance data includes the contact drive current value, the contact drive voltage value, the contact line impedance value, and the contact signal transmission delay time.

[0031] Among them, the contact drive current value refers to the real-time current magnitude applied by the power supply to each electronic detonator contact during the ignition preparation stage, reflecting whether the current transmission at the detonator contact is sufficient and whether the line load state is stable. It can deploy a micro-current sensor (such as a Hall current sensor) in the electronic detonator ignition control module to collect the current value at the moment of power-on at the contact in real time, and use its collected value for subsequent synchronous analysis and calculation after filtering.

[0032] The contact drive voltage value refers to the instantaneous voltage value applied to the electronic detonator contact, which can be obtained through an embedded high-precision voltage sampling chip. When the ignition circuit is closed, the potential difference across the contact is measured at the microsecond level.

[0033] The contact line impedance value is used to measure the impedance size of the conduction path from the power supply end to the excitation end contact of the electronic detonator, reflecting the electrical transmission stability of parts such as cables, connectors, and solder joints in the line. It can calculate the dynamic impedance value of the current loop in real time using Ohm's law formula R = U / I based on the measured current and voltage values, and can analyze the potential line aging or poor contact risks in combination with historical comparisons.

[0034] The contact signal transmission delay time is the propagation time consumed from when the instruction is sent from the control chip to when the electronic detonator contact receives the complete ignition signal. It can obtain the accurate signal propagation delay by recording the time stamp difference between the instruction issuance and the contact response.

[0035] The specific steps for analyzing the electric drive synchronization factor at each electronic detonator contact point are as follows: Read the contact drive current value, contact drive voltage value, contact line impedance value, and contact signal transmission delay time of the electric drive synchronization factor at each electronic detonator contact point, and perform normalization processing (i.e., unit removal) respectively; comprehensively analyze the contact drive current value, contact drive voltage value, contact line impedance value, and contact signal transmission delay time of the electric drive synchronization factor at each electronic detonator contact point after normalization processing to obtain the electric drive synchronization factor at each electronic detonator contact point; The specific formula for calculating the electric drive synchronization factor at each electronic detonator contact point is as follows: ; where, is the electric drive synchronization factor at the th electronic detonator contact point, is the contact drive current value at the th electronic detonator contact point after normalization processing, is the current adjustment coefficient stored in the database, is the contact drive voltage value at the th electronic detonator contact point after normalization processing, is the voltage adjustment coefficient stored in the database, is the natural constant, which takes the value of 2.71 in this embodiment, is the contact line impedance value at the th electronic detonator contact point after normalization processing, is the contact signal transmission delay time at the th electronic detonator contact point after normalization processing, , is the number of electronic detonators.

[0036] Among them, the specific form of the tanh function is: , where, is the natural constant, and it can take 2.71 in this implementation example, with the domain of (−∞, +∞) and the range of (−1, +1).

[0037] It should be noted that the current adjustment coefficient stored in the database, the voltage adjustment coefficient The specific acquisition steps are as follows: First, conduct electrical excitation tests on several types of electronic detonators under standard working conditions (room temperature, steady-state power supply, and interference-free environment), measure their actual trigger response times under different combinations of drive currents and drive voltages, and construct multiple groups of control variable samples; then perform curve fitting on the relationship between the currently set current or voltage and the corresponding response time in each group of samples, and extract the derivative slope of the non-linear fitting function as the initial response sensitivity; on this basis, conduct weighted analysis on the excitation stability and signal transmission consistency under different current / voltage settings to obtain the relative adjustment strength; finally, use the normalized average adjustment sensitivity as and the value of.

[0038] In this implementation plan, by introducing electric drive balance data and performing standardized modeling and exponential factor extraction on it, the discriminative ability of the electrical response sensitivity of the multi-contact delay synchronization control of electronic detonators is significantly enhanced. In specific operations, the four data items of the contact drive current value, drive voltage value, line impedance value, and signal transmission delay time all have clear instantaneous physical meanings and can be directly obtained, avoiding abstract estimation. After standardized processing, they participate in the calculation of the electric drive synchronization factor, enabling a unified analysis dimension across detonators and nodes, making detonators under different models or wiring conditions comparable and providing a basis for adjustment. The establishment process of the current and voltage adjustment coefficients in the database is based on the fitting of real excitation response curves and the extraction of multiple groups of experimental samples, ensuring that the adjustment weights have a high degree of engineering credibility, thus realizing a synchronization control adjustment logic with strong pertinence and high robustness, providing high-precision, quantifiable, and strongly adaptable basic support for the intelligent detonator system in complex blasting scenarios.

[0039] Specifically, the contact dynamic data includes the contact surface temperature value, contact pulse response delay value, and contact trigger conduction time.

[0040] Among them, the contact surface temperature value refers to the real-time temperature of the electronic detonator contact during the pre-explosion preparation stage, reflecting the material heat conduction state and the stability of the conductive interface. It can integrate a thermistor or a micro-thermocouple sensor in the electronic detonator structure to collect the contact temperature data in real time and transmit it to the processor through the AD sampling module.

[0041] The contact pulse response delay value is the time difference between the excitation pulse signal sent by the control system and the start of the electrical response of the contact, reflecting the dynamic agility of the contact trigger mechanism. It can synchronously record the time points when the excitation command is sent and the first appearance of the rising edge of the electrical signal, and calculate their difference as the delay response time.

[0042] The contact trigger conduction time represents the total time experienced by the contact from receiving the trigger signal to fully forming a low-resistance conduction state, reflecting its efficiency in completing the conduction transition. It can be obtained by using a high-frequency voltage and current synchronous sampling module to capture the entire process from the start of conduction to the stable decrease in resistance to the closed state, and extracting the duration required for stable conduction as the value for input.

[0043] As Figure 2 shown, the specific steps for analyzing the dynamic response adjustment factor at each electronic detonator contact are as follows: Read the contact surface temperature value, contact pulse response delay value, and contact trigger conduction time of the electrical drive synchronization factor at each electronic detonator contact, and perform standardization processing (i.e., unit removal) on them respectively; comprehensively analyze the contact surface temperature value, contact pulse response delay value, and contact trigger conduction time at each electronic detonator contact after standardization processing to obtain the dynamic response adjustment factor at each electronic detonator contact.

[0044] Among them, the specific formula for calculating the dynamic response adjustment factor at each electronic detonator contact is as follows: ; where is the dynamic response adjustment factor at the th electronic detonator contact, is the contact surface temperature value at the th electronic detonator contact after standardization processing, is the temperature adjustment coefficient stored in the database, is the contact pulse response delay value at the th electronic detonator contact after standardization processing, is the pulse response adjustment coefficient stored in the database, is the contact trigger conduction time at the th electronic detonator contact after standardization processing, , is the number of electronic detonators.

[0045] It should be explained that the specific steps for obtaining the temperature adjustment coefficient and the pulse response adjustment coefficient stored in the database are as follows: First, on the temperature control experimental platform, set multiple groups of different surface temperature conditions (such as low temperature, medium temperature, and high temperature three gears), heat or cool the electronic detonator contacts, and simultaneously monitor the change in their trigger response time; statistically analyze the response delay amount under each temperature condition, construct a relationship model between temperature and trigger performance, and take the fitting derivative slope within the response sensitive section as the temperature sensitivity base value, and obtain the temperature adjustment coefficient after normalization., subsequently, under the same working conditions, the pulse response curves of the contacts under different temperatures and environmental interferences are recorded by a high-precision signal recording system, and indicators such as the rising edge steepness, response peak time delay, and jitter amplitude are extracted. Principal component analysis or weighted average is used to construct a pulse response quality factor, and combined with the influence of its change amplitude on the triggering stability, the sensitivity of the pulse response change to the system dynamic delay is calculated, and finally, normalization processing is performed to form a pulse response adjustment coefficient .

[0046] Among them, a specific implementation example of calculating the dynamic response adjustment factor at a certain electronic detonator contact is as follows. The following parameters are available: The surface temperature value of the contact at a certain electronic detonator contact after standardization is approximately: 0.846.

[0047] The temperature adjustment coefficient stored in the database is approximately: 1.213.

[0048] The contact pulse response delay value at a certain electronic detonator contact after standardization is approximately: 0.642.

[0049] The pulse response adjustment coefficient stored in the database is approximately: 1.087.

[0050] The contact trigger conduction time at a certain electronic detonator contact after standardization is approximately: 0.392.

[0051] Substitute the above data into the specific formula for calculating the dynamic response adjustment factor at each electronic detonator contact respectively, and we get: The dynamic response adjustment factor at a certain electronic detonator contact = arctan(((0.846)^1.213)+((0.642)^1.087))+ln(1 + 0.392)≈1.295.

[0052] In this implementation plan, by systematically modeling the contact dynamic data of electronic detonator contacts, the perception and adjustment capabilities of the key timing characteristics of the triggering execution process are significantly improved. The contact surface temperature value, pulse response delay value, and trigger conduction time are all physical parameters that can be collected in real time, directly reflecting the conduction performance, material state, and dynamic response rate at the contact point. Through the fusion of the three parameters after standardization, a dynamic response adjustment factor is constructed. The system can comprehensively evaluate the conduction agility and transmission stability of the contact point during the excitation process. Especially in disturbed environments such as high temperature, high frequency excitation, or complex vibrations, this adjustment factor can accurately reflect the response lag problems caused by temperature drift, trigger mechanism hysteresis, or conduction slowness, avoiding the risk of asynchronous initiation due to unbalanced explosion delay. In addition, by constructing a temperature control platform to conduct temperature and pulse response tests, and extracting adjustment coefficients based on the change slope and principal component analysis, it is ensured that the model parameters have sufficient physical basis and dynamic adaptability, further enhancing the credibility and adjustment effect of the pre-blasting synchronous analysis. The overall design reflects the practical value of constructing a highly responsive adjustment mechanism starting from the obtainable parameters and combining the characteristics of engineering behavior.

[0053] Specifically, the disturbance fluctuation data includes the electromagnetic interference amplitude of the contact circuit, the vibration frequency of the contact environment, and the contact displacement disturbance value.

[0054] Among them, the electromagnetic interference amplitude of the contact circuit refers to the intensity of the instantaneous electromagnetic interference signal received in the microcircuit where the electronic detonator contact is located. It can be determined by embedding a micro electromagnetic interference sensing module (such as a Hall sensor or a broadband magnetic field probe) in the contact drive circuit, real-time monitoring the local magnetic field disturbance voltage amplitude, and using a high-pass filter and an amplitude envelope extraction algorithm to determine the interference peak value, and finally outputting it as the interference amplitude.

[0055] The vibration frequency of the contact environment is the main frequency of the mechanical vibration received by the electronic detonator at the deployment site, which particularly affects the physical stability of the contact point and the triggering crimping effect. It can be measured by arranging MEMS acceleration sensors on the outer shell of the detonator device or the transmission bracket, continuously collecting microvibration signals, extracting the main frequency peak value through FFT (Fast Fourier Transform), and outputting the corresponding vibration frequency data in each sampling period.

[0056] The contact displacement disturbance value represents the micro displacement offset generated by the contact point due to structural looseness, impact, or vibration at the current instant, which directly affects the contact conduction efficiency and the integrity of the response waveform. It can be measured by an internal laser micro displacement sensor or a Hall-type displacement detection device, real-time measuring the relative displacement change between the contact electrodes, and using a differential algorithm to compare with the steady-state threshold value to extract its disturbance amplitude as the disturbance value.

[0057] The specific steps for analyzing the synchronization error prediction factor at each electronic detonator contact point are as follows: Read the electromagnetic interference amplitude of the contact circuit, the vibration frequency of the contact environment, and the displacement perturbation value of the electric drive synchronization factor at each electronic detonator contact point, and perform standardization processing (i.e., unit removal) on each of them; comprehensively analyze the electromagnetic interference amplitude of the contact circuit, the vibration frequency of the contact environment, and the displacement perturbation value of the electric drive synchronization factor at each electronic detonator contact point after the standardization processing to obtain the synchronization error prediction factor at each electronic detonator contact point.

[0058] Among them, the specific formula for calculating the synchronization error prediction factor at each electronic detonator contact point is as follows: ; where is the synchronization error prediction factor at the th electronic detonator contact point, is the electromagnetic interference amplitude of the contact circuit at the th electronic detonator contact point after the standardization processing, is the displacement perturbation value at the th electronic detonator contact point after the standardization processing, is the displacement perturbation amplification coefficient stored in the database, is the vibration frequency of the contact environment at the th electronic detonator contact point after the standardization processing, , is the number of electronic detonators.

[0059] It should be explained that the specific steps for obtaining the displacement perturbation amplification coefficient stored in the database are as follows: First, continuously collect the micro-vibration or displacement response of the electronic detonator contact under different working conditions through a micro-displacement measurement module (such as a laser interferometer or a high-precision displacement sensor) to form a high-frequency time-series displacement data set; Second, set multiple typical operating environment scenarios (such as blasting construction vibration, transportation impact, thermal expansion and contraction structure perturbation, etc.), and record the variation relationship between the contact displacement perturbation value and the delay error in each scenario; Then, based on the linear regression or non-linear fitting method, extract the sensitivity coefficient between the displacement perturbation and the synchronization error, that is, the increase in synchronization delay caused by a unit perturbation displacement is used as the response amplification multiple; Finally, perform statistical normalization processing on the sensitivity coefficients extracted in different scenarios to generate a unified perturbation amplification coefficient .

[0060] In this implementation scheme, by introducing real-time modeling and predictive processing of disturbance fluctuation data, the synchronous adjustment ability of the electronic detonator contacts in an unsteady operating environment is significantly improved. The electromagnetic interference amplitude of the contact circuit, the environmental vibration frequency, and the displacement disturbance value are all key disturbance variables that are extremely vulnerable to influence and directly related to the triggering stability at the blasting site. This design not only performs high-frequency and micro-level acquisition based on physical sensors (such as Hall probes, MEMS accelerometers, laser displacers), but also establishes a quantitative relationship between the disturbance variables and the synchronization error through standardized processing and sensitivity modeling. Especially in complex geological structures or large-scale construction vibration scenarios, electromagnetic induction interference and mechanical disturbances are likely to cause trigger signal offsets or incomplete conduction, thereby affecting the detonator explosion delay accuracy. By constructing a synchronization error prediction factor, the system can identify potential synchronization anomaly trends in advance before the explosion, and then actively adjust the delay configuration to avoid the problem of unbalanced cluster blasting timing caused by the disturbance environment, ensuring high-confidence synchronization of the entire explosion network, and greatly enhancing the robustness, safety, and on-site environment adaptability of the system.

[0061] Please refer to Figure 3 , an embodiment of the present invention provides a technical solution: an intelligent synchronous system for an electronic detonator multi-contact delay network, including: a data acquisition unit for real-time acquiring the set explosion delay value, electric drive balance data, contact dynamic data, and disturbance fluctuation data at each electronic detonator contact; a data analysis unit for respectively analyzing the electric drive synchronization factor, dynamic response adjustment factor, and synchronization error prediction factor at each electronic detonator contact based on the electric drive balance data, contact dynamic data, and disturbance fluctuation data at each electronic detonator contact; an adjustment analysis unit for analyzing the synchronization adjustment value at each electronic detonator contact based on the electric drive synchronization factor, dynamic response adjustment factor, and synchronization error prediction factor at each electronic detonator contact; a delay synchronization unit for combining the synchronization adjustment value at each electronic detonator contact with the set explosion delay value at the corresponding electronic detonator contact, analyzing the explosion delay adjustment value at each electronic detonator contact, and correspondingly inputting it to the corresponding electronic detonator contact.

[0062] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0063] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. An intelligent synchronization method for a multi-contact delay network of electronic detonators, characterized in that, It includes the following steps: Obtain the set explosion delay value, electric drive balance data, contact dynamic data, and disturbance fluctuation data at each electronic detonator contact in real time; Based on the electric drive balance data, contact dynamic data, and disturbance fluctuation data at each electronic detonator contact, analyze the electric drive synchronization factor, dynamic response adjustment factor, and synchronization error prediction factor at each electronic detonator contact respectively; Based on the electric drive synchronization factor, dynamic response adjustment factor, and synchronization error prediction factor at each electronic detonator contact, analyze the synchronization adjustment value at each electronic detonator contact, and in combination with the set explosion delay value at the corresponding electronic detonator contact, analyze the explosion delay adjustment value at each electronic detonator contact and input it correspondingly to the corresponding electronic detonator contact; Among them, the specific formula for calculating the explosion delay adjustment value at each electronic detonator contact is as follows: ； Among them, , , in sequence, the th explosion delay adjustment value, set explosion delay value, and synchronization adjustment value at the electronic detonator contact points, , is the number of electronic detonators; The specific steps for analyzing the synchronization adjustment value at each electronic detonator contact are as follows: Obtain the synchronization error prediction low threshold and synchronization error prediction high threshold at each electronic detonator contact; Input the synchronization error prediction low threshold, synchronization error prediction high threshold, electric drive synchronization factor, dynamic response adjustment factor, and synchronization error prediction factor at each electronic detonator contact into the delay analysis model respectively to obtain the synchronization adjustment value at each electronic detonator contact.

2. The intelligent synchronization method for the multi-contact delay network of electronic detonators according to claim 1, wherein, The specific delay analysis model is as follows: ； Among them, , , , , , are, in sequence, the synchronous adjustment value, the electric drive synchronous factor, the dynamic response adjustment factor, the synchronous error prediction factor, the low threshold of synchronous error prediction, and the high threshold of synchronous error prediction at the th electronic detonator contact point, , , are, in sequence, the electric drive synchronous influence coefficient, the dynamic response influence coefficient, and the safety compensation constant stored in the database, , is the number of electronic detonators.

3. The intelligent synchronization method for the multi-contact delay network of electronic detonators according to claim 1, characterized in that, The electric drive balance data includes the contact drive current value, contact drive voltage value, contact line impedance value, and contact signal transmission delay time.

4. The intelligent synchronization method for the multi-contact delay network of electronic detonators according to claim 3, characterized in that, The specific steps for analyzing the electric drive synchronization factor at each electronic detonator contact are as follows: Read the contact drive current value, contact drive voltage value, contact line impedance value, and contact signal transmission delay time of the electric drive synchronization factor at each electronic detonator contact and perform standardization processing respectively; Perform comprehensive analysis on the contact drive current value, contact drive voltage value, contact line impedance value, and contact signal transmission delay time of the electric drive synchronization factor at each electronic detonator contact after standardization processing to obtain the electric drive synchronization factor at each electronic detonator contact.

5. The intelligent synchronization method for the multi-contact delay network of electronic detonators according to claim 1, characterized in that, The contact dynamic data includes the contact surface temperature value, contact pulse response delay value, and contact trigger conduction time.

6. The intelligent synchronization method for the multi-contact delay network of electronic detonators according to claim 5, wherein, The specific steps for analyzing the dynamic response adjustment factor at each electronic detonator contact are as follows: Read the contact surface temperature value, contact pulse response delay value, and contact trigger conduction time of the electric drive synchronization factor at each electronic detonator contact and perform standardization processing respectively; Perform comprehensive analysis on the contact surface temperature value, contact pulse response delay value, and contact trigger conduction time at each electronic detonator contact after standardization processing to obtain the dynamic response adjustment factor at each electronic detonator contact.

7. The intelligent synchronization method for the multi-contact delay network of electronic detonators according to claim 1, characterized in that The disturbance fluctuation data includes the contact loop electromagnetic interference amplitude, contact environment vibration frequency, and contact displacement disturbance value.

8. The intelligent synchronization method for the multi-contact delay network of electronic detonators according to claim 7, characterized in that, The specific steps for analyzing the synchronization error prediction factor at each electronic detonator contact are as follows: Read the contact loop electromagnetic interference amplitude, contact environment vibration frequency, and contact displacement disturbance value of the electric drive synchronization factor at each electronic detonator contact and perform standardization processing respectively; Comprehensively analyze the electromagnetic interference amplitude of the contact circuit, the vibration frequency of the contact environment, and the displacement disturbance value of the electric drive synchronization factor at each contact point of the standardized electronic detonator to obtain the synchronization error prediction factor at each contact point of the electronic detonator.

9. Electronic detonator multi-contact delay network intelligent synchronization system, applying the electronic detonator multi-contact delay network intelligent synchronization method described in any one of claims 1-8, characterized in that, Including: A data acquisition unit for obtaining the set explosion delay value, electric drive balance data, contact dynamic data, and disturbance fluctuation data at each contact point of the electronic detonator in real time; A data analysis unit for analyzing the electric drive synchronization factor, dynamic response adjustment factor, and synchronization error prediction factor at each contact point of the electronic detonator based on the electric drive balance data, contact dynamic data, and disturbance fluctuation data at each contact point of the electronic detonator; An adjustment analysis unit for analyzing the synchronization adjustment value at each contact point of the electronic detonator based on the electric drive synchronization factor, dynamic response adjustment factor, and synchronization error prediction factor at each contact point of the electronic detonator; A delay synchronization unit for combining the synchronization adjustment value at each contact point of the electronic detonator with the set explosion delay value at the corresponding contact point of the electronic detonator, analyzing the explosion delay adjustment value at each contact point of the electronic detonator, and inputting it correspondingly to the corresponding contact point of the electronic detonator.

Images