Electronic detonator network signal monitoring system and method

Abstract

The invention provides an electronic detonator network signal monitoring system and method, which can quickly monitor the voltage and current fluctuation condition of an electronic detonator communication bus in real time and facilitate tracking and positioning. The system comprises an exploder, wherein a control end and a data recording end are arranged in the exploder; wherein the control end is connected with the detonator to be detected through a bus and is used for realizing detection and detonation control on the detonator to be detected; and the data recording end is connected to the bus between the control end and the detonator to be tested, is in communication connection with the control end, is configured to be controlled by the control end to record real-time voltage and current signals of the bus, and then diagnoses the bus state based on recorded data. And the diagnosis result is fed back to the control end.

Description

Technical Field

[0001] This invention relates to the field of detonator technology, specifically to an electronic detonator network signal monitoring system and method. Background Technology

[0002] Currently, occasional instances of single detonator misfires, partial network misfires, or half-network misfires occur during the use of electronic detonators. Log tracking and analysis of these misfires typically reveal abnormal fluctuations in the current and voltage parameters of the communication busbar before the misfire is detected. Furthermore, to reduce costs, different users may use non-standard blasting busbars during blasting operations. For example, using smaller diameter busbars leads to unreliable connections with the detonator junction boxes; using iron busbars instead of pure copper busbars increases busbar capacity loss during detonator communication; and arbitrarily and unreliably connecting different network branches of the detonator is also common. Currently, detonators that monitor the current and voltage of the communication bus are primarily used for detonator communication, charging, and detonation. However, they typically monitor the current and voltage of the communication bus at a low frequency (approximately once per second). Therefore, when a sudden, brief network failure causes a detonator misfire, the detonator will have difficulty detecting fluctuations in network parameters. Furthermore, in the subsequent investigation of the cause of the misfire, relying on simple log information, and due to the limited data source, the authenticity and reliability of the data cannot be guaranteed, making it difficult to pinpoint the true cause of the detonator misfire. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides an electronic detonator network signal monitoring system and method, which can quickly and in real-time monitor the voltage and current fluctuations of the electronic detonator communication bus, facilitating tracking and location.

[0004] This invention adopts the following technical solution: an electronic detonator network signal monitoring system, comprising a detonator, wherein the detonator is equipped with a control terminal and a data recording terminal; wherein, The control terminal is connected to the detonator under test via a busbar, and is used to detect and control the detonation of the detonator under test. The data recording terminal is connected to the busbar between the control terminal and the detonator under test, and is communicatively connected to the control terminal. It is configured to be controlled by the control terminal to record the real-time voltage and current signals of the busbar, and then diagnose the status of the busbar based on the recorded data, and feed back the diagnosis results to the control terminal.

[0005] Furthermore, the data recording end includes: The sampling module is used to sample the real-time voltage and current signals of the positive and negative busbars; The power supply module is used to provide power. The communication module is communicatively connected to both the control terminal and external computer equipment, and is used to realize data communication. The storage module is used to store the real-time voltage and current signals of the two buses; The main control module is connected to the sampling module, power supply module, communication module, and storage module. After receiving the recording signal from the control terminal via the communication module, it controls the operation of the sampling module and storage module to diagnose the status of the bus and feed it back to the control terminal. Furthermore, the sampling module includes a voltage sampling unit and a current sampling unit; the voltage sampling unit is connected to the bus and is used to acquire the voltage signal of the bus; the current sampling unit is connected in series with the bus and is used to acquire the current signal of the bus. Furthermore, the storage module includes three memory chips, namely a first memory, a second memory, and a third memory; the first memory, the second memory, and the third memory are connected in parallel and are all connected to the main control module; Furthermore, the main control module uses a microcontroller, which is equipped with six sets of data buffer units, used to sequentially switch the storage of the real-time voltage and current signals of the bus, and when any of the data buffer units is full, the full real-time voltage and current signals of the bus are sent to the storage module. Further, the sampling module includes sampling resistors R1 and R2, resistors R3-R14, capacitors C1 and C2, non-inverting followers U1 and U2, and differential amplifiers U3 and U4. Sampling resistors R1 and R2 are connected in series on the positive and negative busbars respectively. One end of sampling resistor R1 is connected to one end of resistors R5 and R7. The other end of resistor R7 is connected to one end of resistor R8 and then to pin 3 of the non-inverting follower U1. The other end of resistor R8 is grounded. Pins 1 and 2 of the non-inverting follower U1 are connected to the main control module. The other end of sampling resistor R1 is connected to one end of resistor R6. The other end of resistor R5 is connected to one end of resistor R3 and pin 6 of differential amplifier U3. The other end of resistor R6 is connected to one end of resistor R4 and pin 5 of differential amplifier U3. The other end of resistor R3 is connected to pin 7 of differential amplifier U3 and then to the main control module. The differential amplifier U3 has its pin 8 connected to one end of capacitor C1 and then connected to a 5V power supply. The other end of capacitor C1 is grounded. One end of sampling resistor R2 is connected to one end of resistors R11 and R13. The other end of resistor R13 is connected to one end of resistor R14 and then connected to pin 3 of the co-current follower U2. The other end of resistor R14 is grounded. Pins 1 and 2 of the co-current follower U2 are connected to the main control module. The other end of sampling resistor R2 is connected to one end of resistor R12. The other end of resistor R11 is connected to one end of resistor R9 and pin 6 of differential amplifier U4. The other end of resistor R12 is connected to one end of resistor R10 and pin 5 of differential amplifier U4. The other end of resistor R9 is connected to pin 7 of differential amplifier U4 and then connected to the main control module. Pin 8 of differential amplifier U4 is connected to one end of capacitor C2 and then connected to a 5V power supply. The other end of capacitor C2 is grounded. This invention also provides a method for monitoring signals in an electronic detonator network, comprising the following steps: S1. Obtain the real-time voltage and current signals on the bus, sequentially switch and store the recorded voltage and current signals into different data buffer units, and when any of the data buffer units is full, send the data in the full data buffer unit to the storage module. S2. The main control module diagnoses the bus status based on the recorded voltage and current signals, and generates early warning signals or detonation control suggestions based on the diagnosis results. S3. Send the warning signal or detonation control suggestion to the control terminal; S4. Determine whether the storage module is full of data. If it is full, stop data recording. If it is not full, repeat step S1.

[0006] Furthermore, step S1 also includes the following steps: S1.1 Before acquiring the voltage and current signals on the bus, it is determined whether there is already data in the data buffer unit. If there is data in any of the data buffer units, the control terminal sends an erase command to the microcontroller to erase the data in all the data buffer units. Then, a record command is sent to the microcontroller to start recording the voltage and current signals on the bus. If there is no data, the voltage and current signals on the bus are recorded in real time. S1.2 The recorded voltage and current signals are first stored in the first data buffer unit. When the first data buffer unit is full, the data in the full data buffer unit is sent to the storage module. At the same time, the next data buffer unit continues to record voltage and current signals until it is full. Furthermore, the warning signal or detonation control suggestion includes warning information for display on the human-machine interface of the control terminal; Furthermore, step S2 also includes the following steps: S2.1 The main control module has pre-stored the bus voltage and current curves after connecting different batches of detonators. The bus voltage and current curves of normal blasting and the same number of detonators in batches are fitted to obtain the qualified voltage and current curves of the corresponding batches. S2.2 Shift the amplitude of the voltage and current qualified curve by ±10% to obtain a curve channel that is related to voltage and current and time. S2.3 Fit the real-time recorded voltage and current signals to obtain the real-time bus voltage and current curve. Compare the real-time bus voltage and current curve with the curve channel. If it is within the curve channel, the current bus connection is determined to be normal. If it is below the lower limit of the curve channel, the current bus connection is determined to be abnormal, and a corresponding warning signal is generated. If it is greater than the upper limit of the curve channel, the current bus voltage and current are determined to be too large, and a corresponding warning signal is also generated.

[0007] The beneficial effects of this invention are that it can quickly and independently complete the real-time monitoring of bus voltage and current during the communication process, and avoids interference with the normal communication detection between the detonator and the detonator. Subsequently, it reliably analyzes and diagnoses the bus status and feeds the diagnostic results back to the control terminal to provide reliable reference and tracking location, thus having good application value. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the connection structure of the present invention; Figure 2 This is a block diagram of the connection structure of the data recording end in this invention; Figure 3This is the circuit schematic diagram of the sampling module in this invention; Figure 4 This is a connection topology diagram between the microcontroller and the storage module in this invention; Figure 5 This is a schematic diagram of the voltage and current curve channel in an embodiment of the present invention. Detailed Implementation

[0009] like Figures 1-5 As shown, an electronic detonator network signal monitoring system of the present invention includes a detonator 1, which is equipped with a control terminal and a data recording terminal; wherein, The control end is connected to the detonator 2 under test via bus 3, and is used to realize the detection and detonation control of the detonator under test; The data recording end is connected to the busbar between the control end and the detonator under test, and is connected to the control end in communication. It is configured to be controlled by the control end to record the real-time voltage and current signals of the busbar, and then diagnose the busbar status based on the recorded data. Subsequently, it generates a warning signal or detonation control suggestion based on the diagnosis result, and feeds the signal or suggestion back to the control end.

[0010] The data recording end includes: The sampling module is used to sample the real-time voltage and current signals of the positive and negative busbars. The power supply module is used to provide power. The communication module is connected to both the control terminal and external computer devices to enable data communication. Furthermore, the communication module is connected to the control terminal via a serial port and to external computer devices via an RS485 interface. The storage module is used to store the real-time voltage and current signals of the two buses; The main control module is connected to the sampling module, power supply module, communication module, and storage module. After receiving the recording signal from the control terminal via the communication module, it controls the sampling module and storage module to start recording the bus voltage and current signals, thereby diagnosing the bus status and feeding back to the control terminal. When the storage module is full, it also feeds back and automatically controls the cessation of recording the bus voltage and current signals.

[0011] The data recording end operates independently of the detonator's normal detection and detonation process. It is solely responsible for monitoring and storing the voltage and current signals during communication between the detonator and the detonator, thus avoiding interference with the detonator's normal communication. However, the data recording end has a very high sampling rate of 10kHz and a sampling frequency of 10,000 times per second. While the detonator's control end is busy detecting and controlling the detonator, the data recording end can record brief interruptions in the busbar and interference signals, analyze and judge abnormal situations, and send warning signals to the detonator control end via serial port. Because the data recording end requires a specific time (typically 3.5ms) to complete data writing, if the microcontroller waits for the memory to complete data storage before acquiring subsequent data, data loss will occur. Therefore, the storage module includes three memory chips: a first memory, a second memory, and a third memory. While data is stored in the first memory, the recorded voltage and current signals are written to the second memory, and this process is repeated cyclically. The first, second, and third memories are connected in parallel and are all connected to the main control module. The main control module uses a microcontroller with six data buffer units configured to sequentially switch between storing the real-time voltage and current signals of the bus. When any data buffer unit is full, the full real-time voltage and current signals of the bus are sent to the storage module. By setting up three memory chips and six data buffer units, it is ensured that the microcontroller can write data to the storage module in real time without data loss.

[0012] The sampling module includes a voltage sampling unit and a current sampling unit. The voltage sampling unit is connected to the busbar and is used to acquire the voltage signal of the busbar. The current sampling unit is connected in series with the busbar and is used to acquire the current signal of the busbar. Specifically, the sampling module includes sampling resistors R1, R2, R3~R14, capacitors C1 and C2, non-inverting followers U1 and U2, and differential amplifiers U3 and U4. Sampling resistors R1 and R2 are connected in series with the positive and negative busbars respectively. One end of sampling resistor R1 is connected to one end of resistors R5 and R7. The other end of resistor R7 is connected to one end of resistor R8 and then connected to pin 3 of non-inverting follower U1. The other end of resistor R8 is grounded. Pins 1 and 2 of non-inverting follower U1 are connected to the main control module. The other end of sampling resistor R1 is connected to one end of resistor R6. The other end of resistor R5 is connected to one end of resistor R3 and pin 6 of differential amplifier U3. The other end of resistor R6 is connected to one end of resistor R4 and pin 6 of differential amplifier U3. Pin 5 of amplifier U3 is connected to all terminals. The other end of resistor R3 is connected to pin 7 of differential amplifier U3, which is then connected to the main control module. Pin 8 of differential amplifier U3 is connected to one end of capacitor C1, which is then connected to a 5V power supply. The other end of capacitor C1 is grounded. One end of sampling resistor R2 is connected to one end of resistors R11 and R13. The other end of resistor R13 is connected to one end of resistor R14, which is then connected to pin 3 of the non-inverting follower U2. The other end of resistor R14 is grounded. Pins 1 and 2 of the non-inverting follower U2 are connected to all terminals. After the pins are connected, they are connected to the main control module. The other end of the sampling resistor R2 is connected to one end of the resistor R12. The other end of the resistor R11 is connected to one end of the resistor R9 and pin 6 of the differential amplifier U4. The other end of the resistor R12 is connected to one end of the resistor R10 and pin 5 of the differential amplifier U4. The other end of the resistor R9 is connected to pin 7 of the differential amplifier U4 and then connected to the main control module. Pin 8 of the differential amplifier U4 is connected to one end of the capacitor C2 and then connected to the 5V power supply. The other end of the capacitor C2 is grounded. The sampling module can sample two bus voltages and two bus currents. The following explanation uses sampling one bus voltage and one bus current as an example: The basic principle of bus current measurement is: R1 is a standard sampling resistor connected in series to the bus. When current I flows through R1, a voltage difference will be formed across its two ends, i.e., U=I*R, where R is the resistance value of resistor R1. Then, differential amplifier U3 amplifies the voltage difference U and outputs it from pin 7 of differential amplifier U3 to the microcontroller for ADC voltage acquisition. The bus current I can be calculated by the existing algorithm of the microcontroller. The basic principle of bus voltage measurement is as follows: Resistors R7 and R8 are in series. According to the voltage divider theorem, a voltage is obtained between resistors R7 and R8. In order to reduce the current consumption of the resistor R7 and R8 circuit, these two resistors are usually very large, resulting in a very large impedance of the voltage signal between resistors R7 and R8. It cannot be acquired by the microcontroller using ADC. Instead, the weak voltage signal is transformed by the non-inverting follower U1 to obtain a low-impedance voltage signal, which is then acquired by the microcontroller using ADC to obtain the bus voltage. The other bus voltage and the other bus current are obtained through another set of identical circuit structures, which will not be described in detail in this patent.

[0013] This invention also provides a method for monitoring signals in an electronic detonator network, comprising the following steps: S1. Obtain the real-time voltage and current signals on the bus, sequentially switch and store the recorded voltage and current signals into different data buffer units, and when any data buffer unit is full, send the data in the full data buffer unit to the storage module. Furthermore, step S1 also includes the following steps: S1.1 Before acquiring the voltage and current signals on the bus, it is determined whether there is already data in the data buffer unit. If there is data in any data buffer unit, the control terminal sends an erase command to the microcontroller to erase the data in all data buffer units. Then, a record command is sent to the microcontroller to start recording the voltage and current signals on the bus. If there is no data, the voltage and current signals on the bus are recorded in real time. This means that before each new voltage and current signal on the bus is recorded, it is necessary to ensure that there is no data in the data buffer unit to avoid data overwriting. S1.2 The recorded voltage and current signals are first stored in the first data buffer unit. When the first data buffer unit is full, the data in the full data buffer unit is sent to the storage module. At the same time, the next data buffer unit continues to record voltage and current signals until it is full. That is, if the first data buffer unit in the six data buffer units is full, the voltage and current signals are recorded through the second data buffer unit. At the same time, the data in the first data buffer unit is stored in the storage module. That is, these six data buffer units work by storing data in a sequential loop. S2. The main control module diagnoses the bus status based on the recorded voltage and current signals, and generates early warning signals or detonation control suggestions based on the diagnosis results. Furthermore, step S2 also includes the following steps: S2.1 The main control module has pre-stored the bus voltage and current curves after connecting different batches of detonators. The bus voltage and current curves of normal blasting and the same number of detonators in batches are fitted to obtain the qualified voltage and current curves of the corresponding batches. S2.2 Shift the amplitude of the voltage and current qualified curve by ±10% to obtain a curve channel that is related to voltage and current and time. S2.3 Fit the real-time recorded voltage and current signals to obtain the real-time bus voltage and current curve. Compare the real-time bus voltage and current curve with the curve channel. If it is within the curve channel, the current bus connection is determined to be normal. If it is below the lower limit of the curve channel, the current bus connection is determined to be abnormal (i.e., detonator disconnection), and a corresponding warning signal is generated. If it is greater than the upper limit of the curve channel, the current bus voltage and current are determined to be too large, and a corresponding warning signal is also generated. like Figure 5 As shown, the channel formed between the two bus voltage and current curves D1 and D2 is the constructed curve channel (which is formed by shifting the qualified voltage and current curves); D3 is the bus voltage and current curve that is greater than the upper limit of the curve channel, indicating that the current bus voltage and current are too high; D4 is the bus voltage and current curve that is within the curve channel, indicating that the current bus connection is normal. S3. Send the warning signal or detonation control suggestion to the control terminal; wherein the warning signal or detonation control suggestion includes warning information for display on the human-machine interface of the control terminal; S4. Determine whether the storage module is full of data. If it is full, stop data recording. If it is not full, repeat step S1. Furthermore, step S4 also includes: the first memory, the second memory, and the third memory in the storage module sequentially and cyclically receive data from the data storage cache unit (that is, when the first memory is storing data, it receives data through the second memory, and when the second memory is storing data, it receives data through the third memory, and so on, writing data sequentially and cyclically) until the first memory, the second memory, and the third memory are all full of data, then data recording stops.

[0014] This invention can rapidly detect sudden fluctuations in the network and completely record all voltage and current waveforms throughout the blasting process. It can operate independently of the detonator, reliably recording and storing the bus voltage waveform and bus current curve during communication between the detonator and detonator without affecting normal communication. Subsequently, by comparing the monitored voltage and current curves with standard voltage and current curves (i.e., the shifted curve channel), if the values ​​exceed the curve channel, an anomaly is indicated. An abnormal network parameter signal can be sent to the control terminal via serial port. The control terminal can then adjust the anomaly level accordingly. Early warnings are issued for abnormal situations such as busbar leakage current and detonator disconnection. Subsequently, the detonation personnel assess the warning. If the risk is controllable, the detonation process can continue. If the assessment shows severe parameter fluctuations that may cause large-scale detonator misfires, a recommendation to stop the detonation is given, which can effectively reduce the risk of detonator misfires. After the detonator detonation is completed, the waveform data of the entire detonation process can be read from the data recording terminal through corresponding commands. In the event of detonator failure and the need to retrieve and analyze communication data, the recorded data can be transmitted to the computer equipment through the RS485 interface, which is convenient for technicians to investigate the cause of the failure afterward.

[0015] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0016] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electronic detonator network signal monitoring system, comprising an initiator, characterized in that: The detonator is equipped with a control terminal and a data recording terminal; wherein... The control terminal is connected to the detonator under test via a busbar, and is used to detect and control the detonation of the detonator under test. The data recording terminal is connected to the busbar between the control terminal and the detonator under test, and is communicatively connected to the control terminal. It is configured to be controlled by the control terminal to record the real-time voltage and current signals of the busbar, and then diagnose the status of the busbar based on the recorded data, and feed back the diagnosis results to the control terminal.

2. The electronic detonator network signal monitoring system according to claim 1, characterized in that: The data recording terminal includes: The sampling module is used to sample the real-time voltage and current signals of the positive and negative busbars; The power supply module is used to provide power. The communication module is communicatively connected to both the control terminal and external computer equipment, and is used to realize data communication. The storage module is used to store the real-time voltage and current signals of the two buses; The main control module is connected to the sampling module, power supply module, communication module, and storage module. After receiving the recording signal from the control terminal via the communication module, it controls the operation of the sampling module and storage module to diagnose the status of the bus and feed it back to the control terminal.

3. The electronic detonator network signal monitoring system according to claim 2, characterized in that: The sampling module includes a voltage sampling unit and a current sampling unit; the voltage sampling unit is connected to the bus and is used to collect the voltage signal of the bus; the current sampling unit is connected in series with the bus and is used to collect the current signal of the bus.

4. The electronic detonator network signal monitoring system according to claim 2, characterized in that: The storage module includes three memory chips, namely a first memory, a second memory, and a third memory; the first memory, the second memory, and the third memory are connected in parallel and are all connected to the main control module.

5. The electronic detonator network signal monitoring system according to claim 2, characterized in that: The main control module uses a microcontroller, which is equipped with six sets of data buffer units to sequentially switch the storage of real-time voltage and current signals of the bus. When any of the data buffer units is full, the full real-time voltage and current signals of the bus are sent to the storage module.

6. The electronic detonator network signal monitoring system according to claim 3, characterized in that: The sampling module includes sampling resistors R1 and R2, resistors R3-R14, capacitors C1 and C2, non-inverting followers U1 and U2, and differential amplifiers U3 and U4. Sampling resistors R1 and R2 are connected in series on the positive and negative busbars, respectively. One end of sampling resistor R1 is connected to one end of resistors R5 and R7. The other end of resistor R7 is connected to one end of resistor R8 and then to pin 3 of non-inverting follower U1. The other end of resistor R8 is grounded. Pins 1 and 2 of non-inverting follower U1 are connected to the main control module. The other end of sampling resistor R1 is connected to one end of resistor R6. The other end of resistor R5 is connected to one end of resistor R3 and pin 6 of differential amplifier U3. The other end of resistor R6 is connected to one end of resistor R4 and pin 5 of differential amplifier U3. The other end of resistor R3 is connected to pin 7 of differential amplifier U3 and then to the main control module. Pin 8 of differential amplifier U3 is connected to one end of capacitor C1 and then connected to a 5V power supply; the other end of capacitor C1 is grounded. One end of sampling resistor R2 is connected to one end of resistors R11 and R13. The other end of resistor R13 is connected to one end of resistor R14 and then connected to pin 3 of the co-current follower U2. The other end of resistor R14 is grounded. Pins 1 and 2 of the co-current follower U2 are connected to the main control module. The other end of sampling resistor R2 is connected to one end of resistor R12. The other end of resistor R11 is connected to one end of resistor R9 and pin 6 of differential amplifier U4. The other end of resistor R12 is connected to one end of resistor R10 and pin 5 of differential amplifier U4. The other end of resistor R9 is connected to pin 7 of differential amplifier U4 and then connected to the main control module. Pin 8 of differential amplifier U4 is connected to one end of capacitor C2 and then connected to a 5V power supply; the other end of capacitor C2 is grounded.

7. A method for monitoring network signals of electronic detonators, characterized in that: Includes the following steps: S1. Obtain the real-time voltage and current signals on the bus, sequentially switch and store the recorded voltage and current signals into different data buffer units, and when any of the data buffer units is full, send the data in the full data buffer unit to the storage module. S2. The main control module diagnoses the bus status based on the recorded voltage and current signals, and generates early warning signals or detonation control suggestions based on the diagnosis results. S3. Send the warning signal or detonation control suggestion to the control terminal; S4. Determine whether the storage module is full of data. If it is full, stop data recording. If it is not full, repeat step S1.

8. The method for monitoring network signals of electronic detonators according to claim 7, characterized in that: Step S1 further includes the following steps: S1.1 Before acquiring the voltage and current signals on the bus, it is determined whether there is already data in the data buffer unit. If there is data in any of the data buffer units, the control terminal sends an erase command to the microcontroller to erase the data in all the data buffer units. Then, a record command is sent to the microcontroller to start recording the voltage and current signals on the bus. If there is no data, the voltage and current signals on the bus are recorded in real time. S1.2 The recorded voltage and current signals are first stored in the first data buffer unit. When the first data buffer unit is full, the data in the full data buffer unit is sent to the storage module. At the same time, the next data buffer unit continues to record voltage and current signals until it is full.

9. The method for monitoring network signals of electronic detonators according to claim 7, characterized in that: The warning signal or detonation control suggestion includes warning information for display on the human-machine interface of the control terminal.

10. The method for monitoring network signals of electronic detonators according to claim 7, characterized in that: Step S2 further includes the following steps: S2.1 The main control module has pre-stored the bus voltage and current curves after connecting different batches of detonators. The bus voltage and current curves of normal blasting and the same number of detonators in batches are fitted to obtain the qualified voltage and current curves of the corresponding batches. S2.2 Shift the amplitude of the voltage and current qualified curve by ±10% to obtain a curve channel that is related to voltage and current and time. S2.3 Fit the real-time recorded voltage and current signals to obtain the real-time bus voltage and current curve. Compare the real-time bus voltage and current curve with the curve channel. If it is within the curve channel, the current bus connection is determined to be normal. If it is below the lower limit of the curve channel, the current bus connection is determined to be abnormal, and a corresponding warning signal is generated. If it is greater than the upper limit of the curve channel, the current bus voltage and current are determined to be too large, and a corresponding warning signal is also generated.

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