Electronic detonator detector and electronic detonator detection system

Abstract

The present application relates to the technical field of electronic detonators, and discloses an electronic detonator detector and an electronic detonator detection system. The electronic detonator detector includes a control module and a detection module. The control module is used to provide a target current to the detection module, and the detection module is used to supply the target current to the electronic detonator to obtain the electrical performance parameter value generated by the electronic detonator according to the target current, and detect the electrical performance parameter value according to the built-in preset reference parameter value to obtain the electrical performance detection result of the electronic detonator. The control module is used to obtain and send the target tube code information of the electronic detonator to the detection module. The detection module is also used to detect the target tube code information according to the preset tube code information to obtain the tube code detection result, and determine the target detection result according to the tube code detection result and the electrical performance detection result. The electronic detonator detector can automatically judge the state of the electronic detonator through the tube code detection result and the electrical performance detection result, thereby improving the comprehensiveness and accuracy of the detection.

Description

Technical Field

[0001] The present application relates to the technical field of electronic detonators, and in particular to an electronic detonator detector and an electronic detonator detection system. Background Art

[0002] In the related technology, electronic detonators are detonators that use electronic control modules to control the detonation process. If abnormal electronic detonators are used in blasting tasks, electronic detonators may fail to explode, have insufficient explosion intensity, or cause misfires, resulting in unsatisfactory blasting results. In order to ensure that electronic detonators can work normally in subsequent blasting tasks, they need to be tested in the early stages of production. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an electronic detonator detector and an electronic detonator detection system, which can accurately and reliably complete the detection of electronic detonators.

[0004] To achieve the above-mentioned purpose, a first aspect of an embodiment of the present application provides an electronic detonator detector, comprising a control module and a detection module;

[0005] Wherein, the control module is connected to the detection module, and the control module is used to provide the detection module with a target current; the detection module is connected to the electronic detonator, and the detection module is used to supply the target current to the electronic detonator to obtain the electrical performance parameter value generated by the electronic detonator according to the target current, and detect the electrical performance parameter value according to the built-in preset reference parameter value to obtain the electrical performance detection result of the electronic detonator; the electrical performance detection result is used to characterize whether the electrical performance parameter value of the electronic detonator is a normal value or an abnormal value;

[0006] The control module is used to obtain the target tube code information of the electronic detonator and send the target tube code information to the detection module;

[0007] The detection module is also used to detect the target pipe code information according to the preset pipe code information built into the control module to obtain a pipe code detection result, and determine the target detection result according to the pipe code detection result and the electrical performance detection result; the pipe code detection result is used to characterize whether the target pipe code information is a normal value or an abnormal value.

[0008] According to the electronic detonator detector proposed in the embodiment of the present application, the electrical performance parameters of the electronic detonator can be detected through the detection module to obtain the electrical performance detection results. The control module can automatically detect according to the built-in preset tube code information and the target tube code information to obtain the tube code detection results. By combining the tube code detection results and the electrical performance detection results, it is possible to automatically and comprehensively judge whether the electronic detonator is abnormal, thereby improving the comprehensiveness and accuracy of the detection, ensuring the reliability of the detection results, and further enabling the blasting effect of the electronic detonator to achieve the expected results.

[0009] In some embodiments, the detection module includes a first control unit and a switch group, the first control unit is connected to the control module, the first control unit is connected to the switch group, the first control unit is used to receive a first detection instruction sent by the control module, and put the switch group in a closed state according to the first detection instruction; the switch group is used to be connected to the electronic detonator, and the switch group is also used to supply the target current to the electronic detonator according to the closed state.

[0010] In some embodiments, the electronic detonator detector further includes a current limiting unit, one end of which is connected to the first control unit, and the other end of which is connected to the switch group, and the current limiting unit is used to limit the target current.

[0011] In some embodiments, the electronic detonator detector also includes a voltage switching unit, a high voltage power supply and a low voltage power supply, the voltage switching unit is respectively connected to the high voltage power supply and the low voltage power supply, the voltage switching unit is connected to the first control unit, and the voltage switching unit is used to select the high voltage power supply and the low voltage power supply according to the second detection instruction received by the first control unit, determine the target power supply, and use the current output by the target power supply as the target current.

[0012] In some embodiments, the electronic detonator detector further includes a current switching unit, which is connected to the first control unit and is used to adjust the current direction of the target current according to a third detection instruction received by the first control unit.

[0013] In some embodiments, the electronic detonator detector further includes an output module, wherein the output module is respectively connected to the control module and an external device, and the output module is used to output the target detection result to the external device.

[0014] In some embodiments, the output module includes a second control unit, a first interface, and a second interface. The second control unit is used to select the first interface to output the target detection result to the external device when the target detection result indicates that the electronic detonator is in a normal state; the second control unit is also used to select the second interface to output the target detection result to the external device when the target detection result indicates that the electronic detonator is in an abnormal state.

[0015] In some embodiments, the electronic detonator detector also includes an address confirmation unit, the first control unit is connected to the address confirmation unit, and the first control unit is used to receive an address code sent by the address confirmation unit; the first control unit receives the target control instruction sent by the control module, and verifies the target control instruction according to the address code to execute the target control instruction.

[0016] In some embodiments, the current limiting unit includes: a first triode, a second triode, a first resistor and a second resistor; the first triode has a first collector, a first base and a first emitter, and the second triode has a second collector, a second base and a second emitter;

[0017] The first control unit is connected to the first collector and the first end of the first resistor respectively, the second end of the first resistor is connected to the first base and the second collector respectively, the first emitter is connected to the second base and the first end of the second resistor respectively, and the second end of the second resistor is connected to the second emitter and the switch group.

[0018] A second aspect of the embodiment of the present application provides an electronic detonator detection system, the electronic detonator detection system comprising: a registration tool, a code scanning device and the electronic detonator detector as described in the first aspect;

[0019] Among them, the electronic detonator detector is connected to the registration tooling and the code scanning device respectively, the registration tooling is used to fix the electronic detonator, and the code scanning device is used to identify the target tube code information of the electronic detonator.

[0020] According to the electronic detonator detection system proposed in the embodiment of the present application, the electronic detonator detection system includes the above-mentioned electronic detonator detector, so as to use the electronic detonator detector to detect the electronic detonator so that the electronic detonator can achieve the expected blasting effect.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 This is a module structure diagram of an electronic detonator detector provided by an embodiment of the utility model;

[0024] Figure 2 It is an optional specific circuit diagram of the current limiting unit;

[0025] Figure 3 It is an optional module structure diagram of the detection module;

[0026] Figure 4 It is an optional circuit structure diagram of a voltage switching unit;

[0027] Figure 5 It is an optional circuit structure diagram of the detection module;

[0028] Figure 6 It is a flow diagram of the target current;

[0029] Figure 7 It is another flow diagram of the target current;

[0030] Figure 8 This is a module structure diagram of the electronic detonator detector provided by the utility model;

[0031] Fig. 9 It is an optional circuit structure diagram of the output module;

[0032] Fig.10 This is a connection circuit diagram of an electrostatic protector provided by an embodiment of the utility model;

[0033] Fig.11 It is a structural diagram of an electronic detonator detection system provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0039] In the existing related technologies, digital electronic detonators are a key product in civilian blasting products and occupy an important position in the market. If an abnormal electronic detonator is used in a blasting task, the electronic detonator may fail to explode, the explosion intensity is insufficient, or it may explode by mistake, resulting in the blasting effect not meeting expectations. In order to ensure that the electronic detonator can work normally in subsequent blasting tasks, it is necessary to test various parameters of the electronic detonator in the early stage of production. The qualification of the electronic detonator mainly depends on the electrical properties of the electronic detonator and the data in the electronic detonator chip. Specifically, the electrical performance test includes judging whether the detonator is short-circuited, whether it is open-circuited, whether the parameters such as the normal voltage current or the high voltage current are within the normal range. The data in the electronic detonator chip includes the internal code information, which is the unique identifier of the electronic detonator. When the electrical performance is normal and the data in the electronic detonator chip is correct, the electronic detonator is judged to have passed the test and the test result is qualified. If any of them is abnormal, the test result is unqualified.

[0040] Based on this, an electronic detonator detector is provided in an embodiment of the present application, and the electronic detonator detector provided by the present utility model will be explained in detail below.

[0041] Please refer to Figure 1 , Figure 1 It is an optional module structure diagram of the electronic detonator detector provided by the embodiment of the utility model. In some embodiments, the electronic detonator detector includes a control module and a detection module. The control module is connected to the detection module, and the control module is used to provide the detection module with a target current. The control module can be an STM32 chip, an MSP430 chip, an ESP32 chip, etc. The target current is the current provided for testing the electrical properties of the electronic detonator. The detection module is connected to the electronic detonator, and the detection module is used to supply the target current to the electronic detonator to obtain the electrical performance parameter value generated by the electronic detonator according to the target current, and detect the electrical performance parameter value according to the built-in preset reference parameter value to obtain the electrical performance detection result of the electronic detonator. The electrical performance detection result is used to characterize whether the electrical performance parameter value of the electronic detonator is a normal value or an abnormal value. In other words, the electrical performance detection result can be that the electrical performance parameter value is a normal value, or it can be that the electrical performance parameter value is an abnormal value.

[0042] It should be noted that the target current refers to the current flowing through the electronic detonator and returning to the detection module. In some embodiments, the electronic detonator detector also includes a power module, which is connected to the detection module. The control module can control whether the detection module is connected to the electronic detonator. Only when the detection module is connected to the electronic detonator, the current provided by the power module will flow through the electronic detonator and return to the detection module. Therefore, the control module can be used to provide the target current to the detection module. In addition, the electrical performance parameter value refers to the current size of the target current detected by the detection module, the load voltage and power generated by the electronic detonator according to the target current, and the unit of the target current can be microamperes. The preset reference parameter value can be set according to the corresponding electrical performance parameter value, which is used to determine whether the electrical performance parameter value is a normal value or an abnormal value. The preset reference parameter value can be a preset current value range, a preset voltage value range, a preset power range, etc. pre-stored in the detection module.

[0043] In some embodiments, the detection module is used to compare the electrical performance parameter value with the preset reference parameter value. If the electrical performance parameter value is within the range of electrical performance values ​​represented by the preset reference parameter value, the electrical performance detection result is determined to be a normal value of the electrical performance parameter value. If the electrical performance parameter value is not within the range of electrical performance values ​​represented by the preset reference parameter value, the electrical performance detection result is determined to be an abnormal value of the electrical performance parameter value. Specifically, the current magnitude of the target current is compared with the preset current value range. If the current magnitude of the target current falls within the preset current value range, the electrical performance detection result is determined to be "a normal value of the electrical performance parameter value", that is, it is determined that the electrical performance of the electronic detonator being detected is normal. If the current magnitude of the target current does not fall within the preset current value range, the electrical performance detection result is determined to be "an abnormal value of the electrical performance parameter value", that is, it is determined that the electrical performance of the electronic detonator being detected is abnormal. In other embodiments, if the detection module does not detect the electrical performance parameter value generated by the electronic detonator according to the target current, it means that the electronic detonator is short-circuited. At this time, the electrical performance detection result is determined to be an abnormal value, that is, it is determined that the electrical performance of the electronic detonator being detected is abnormal.

[0044] In some embodiments, the control module is used to obtain the target tube code information of the electronic detonator and send the target tube code information to the detection module. The detection module is also used to detect the target tube code information according to the preset tube code information built into the control module to obtain the tube code detection result, and determine the target detection result according to the tube code detection result and the electrical performance detection result, wherein the tube code detection result is used to characterize whether the target tube code information is a normal value or an abnormal value.

[0045] It should be noted that the target tube code information refers to the internal code information stored in the electronic detonator, which may include the serial number of the electronic detonator (i.e., the unique identification code of the electronic detonator), the production date, the production batch, the manufacturer, the energy parameters required for detonation, the delay time, etc. It is understandable that the target tube code information can be obtained by identifying the barcode on the surface of the electronic detonator through an external identification device, and the specific type of the target tube code information can be set accordingly according to the actual detection requirements, and the embodiment of the present application does not specifically limit this. The tube code information stored in the control module is the preset tube code information, and the preset tube code information may also include the above information. The detection of the target tube code information may be the following process: after the control module obtains the target tube code information, the target tube code information is sent to the detection module, and the detection module detects it again. Specifically, the detection module sends the tube code data information written into the target tube code information during the detection process, obtains the detected tube code data information after writing is completed, and verifies and verifies it. When the tube code data information passes the data verification, it indicates that the target tube code information is abnormal. When the tube code data information data verification is abnormal, it indicates that the target tube code information is normal. The target tube code information before and after the detection will be returned to the control module. The control module will query the preset tube code information for the returned target tube code information to confirm whether the target tube code information is consistent with the preset tube code information. The tube code detection result can be that the target tube code information is a normal value or that the target tube code information is an abnormal value. If the control unit inquires that the preset tube code information is consistent with the target tube code information, it is determined that the data in the electronic detonator chip is correct, and the tube code detection result is determined to be "the target tube code information is a normal value", that is, it is determined that the internal code information stored in the detected electronic detonator is normal. If no information consistent with the target tube code information is found in the preset tube code information, the tube code detection result is determined to be "the target tube code information is an abnormal value", that is, it is determined that the internal code information stored in the detected electronic detonator is incorrect.

[0046] In some embodiments, the detection module determines the target detection result based on the tube code detection result and the electrical performance detection result. Specifically, the target detection result includes that the electronic detonator under test is normal and that the electronic detonator under test is abnormal. When the tube code detection result is "the target tube code information is a normal value" and the electrical performance detection result is "the electrical performance parameter value is a normal value", the target detection result is determined to be "the electronic detonator under test is normal"; when the tube code detection result and the electrical performance detection result are different from the combination of the above situations, the target detection result is determined to be "the electronic detonator under test is abnormal".

[0047] In some embodiments, the detection module includes a first control unit and a switch group, the first control unit is connected to the control module, the first control unit is connected to the switch group, the first control unit is used to receive a first detection instruction sent by the control module, and the switch group is in a closed state according to the first detection instruction. The switch group is connected to the electronic detonator, and the switch group is used to supply the target current to the electronic detonator according to the closed state. It can be understood that the first control unit can include a control chip, and the control chip can be an STM32 chip, an MSP430 chip, an ESP32 chip, etc. The switch group can be composed of multiple switches or multiple relays. The control module sends an instruction to the control chip in the first control unit about controlling the switch group to be closed or disconnected as the first detection instruction. When it is determined to start the electrical performance detection of the electronic detonator, the first detection instruction can be to control the switch group to be closed. When it is determined that the electrical performance detection of the electronic detonator is not required, the first detection instruction can be to control the switch group to be disconnected.

[0048] It should be noted that in the detection of electronic detonators, high requirements are placed on the detection environment. This is because the actual detection environment is generally in a factory related to the production of electronic detonators, and the detector is in a complex industrial environment. There may be many interference factors that affect the normal operation of the detector. Interference factors include external static electricity and strong electromagnetic signals, and may even cause excessive circuit current inside the detector, thereby causing damage to the circuit components of the detector. Therefore, after completing the electrical performance test, the switch group can be controlled to disconnect and close the channel between the detector and the outside (ie, the electronic detonator), thereby avoiding the situation where external signals interfere with the detector through the channel, further ensuring the reliability of the test results.

[0049] In the electronic detonator detector provided in some embodiments, the detection module also includes a current limiting unit, one end of the current limiting unit is connected to the first control unit, and the other end of the current limiting unit is connected to the switch group. The current limiting unit is used to limit the target current so that the current inside the electronic detonator detector can be within an ideal range, thereby ensuring the normal operation of the electronic detonator detector.

[0050] For example, please refer to Figure 2 , Figure 2It is an optional specific circuit diagram of a current limiting unit, wherein the current limiting unit includes a first triode Q1, a second triode Q2, a first resistor R1 and a second resistor R2, the first triode Q1 has a first collector, a first base and a first emitter, the second triode Q2 has a second collector, a second base and a second emitter, the first control unit is respectively connected to the first collector and the first end of the first resistor R1, the second end of the first resistor R1 is respectively connected to the first base and the second collector, the first emitter is respectively connected to the second base and the first end of the second resistor R2, the second end of the second resistor R2 is connected to the second emitter and the switch group, and the second emitter is also connected to the switch group. It can be understood that the current limiting unit utilizes the negative feedback of the transistor combination to achieve the current limiting effect. Specifically, the current is input from the first control unit to the current limiting unit. When the input current increases, the current flowing out of the first emitter also increases, and the voltage difference across the second resistor R2 also increases, so that the potential of the second base increases, thereby enhancing the conduction between the second collector and the second emitter, that is, the current flowing into the second transistor Q2 increases, thereby reducing the current flowing into the first base, thereby weakening the conduction between the first collector and the first emitter, and thereby reducing the current flowing into the first transistor Q1, that is, the input current, thereby achieving the current limiting effect. In the embodiment of the present application, the power module provides 12V DC power, and the current limiting unit can limit the current to a range of twenty to fifty milliamperes.

[0051] Please refer to Figure 3 , Figure 3 It is an optional module structure diagram of the detection module. In this embodiment, each switch group is composed of two relays, one relay K1 is connected to the first end of the electronic detonator, and the other relay K2 is connected to the second end of the electronic detonator.

[0052] In addition to the control chip, the first control unit also includes a switch control circuit, which includes a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a third triode Q3 and a first field effect transistor Q4. Specifically, the first end of the third resistor is connected to the control chip, the second end of the third resistor is respectively connected to the first end of the fourth resistor and the base of the third triode Q3, the emitter of the third triode Q3 and the second end of the fourth resistor R4 are both connected to the analog ground AGND, the collector of the third triode Q3 is respectively connected to the first end of the fifth resistor R5 and the gate of the first field effect transistor Q4, the second end of the fifth resistor R5 and the source of the first field effect transistor are both connected to the power supply VCC_12V, the drain of the first field effect transistor Q4 is connected to the first end of the sixth resistor R6, and the second end of the sixth resistor R6 is respectively connected to the coil of the relay K1 and the coil of the relay K2. It can be understood that the control chip is connected to the switch control circuit through the switch control pin. When the level of the switch control pin is low, the voltage between the base and the emitter of the third transistor Q3 is less than 0.7V, so the third transistor Q3 is turned off, and the voltage between the gate and the source of the first field effect transistor Q4 is less than the voltage value required for conduction, so the first field effect transistor Q4 is also turned off, and there is no current in the coils in the relay K1 and the relay K2, so that the relay K1 and the relay K2 are disconnected. When the level of the switch control pin is high, the third transistor Q3 is turned on, and the first field effect transistor Q4 is also turned on, outputting a high level, so that the power supply VCC_12V energizes the coils in the relay K1 and the relay K2. After the coil is energized, a magnetic field is generated, thereby adsorbing the moving end and the static end to close, so that the relay K1 and the relay K2 are turned on.

[0053] In some embodiments, a Schottky diode is connected in parallel to the coil of each relay, and the diode can play an overvoltage protection role.

[0054] It should be noted that in the application scenario of the electrical performance detection of electronic detonators, it is generally necessary to detect the electrical performance parameter values ​​when using power supplies of different specifications to further ensure the reliability of the electrical performance detection results. In some embodiments, the electronic detonator detector also includes a voltage switching unit, and the power module includes a high-voltage power supply and a low-voltage power supply. Specifically, the voltage switching unit is connected to the high-voltage power supply and the low-voltage power supply respectively, and the voltage switching unit is connected to the control chip of the first control unit. The voltage switching unit is used to select the high-voltage power supply and the low-voltage power supply according to the second detection instruction received by the control chip of the first control unit, determine the target power supply, and use the current output by the target power supply as the target current.

[0055] Please refer to Figure 4 , Figure 4This is an optional circuit structure diagram of a voltage switching unit. The voltage switching unit can be a multi-channel analog switch chip. Among the two power supplies of different specifications, the power supply with a higher supply voltage is a high-voltage power supply, and the power supply with a lower supply voltage is a low-voltage power supply. The specific supply voltage can be adjusted according to the actual circuit design requirements, and the embodiment of the present application does not limit this. When it is necessary to switch the target power supply, the instruction sent by the control module to the control chip of the first control unit is the second detection instruction.

[0056] The high voltage power supply is connected to the source pin S1 and the source pin S4 through the pin VCC_+HV and the seventh resistor R7, respectively, and the low voltage power supply is connected to the source pin S2 and the source pin S3 through the pin VCC_+LV and the eighth resistor R8. The lines led out of the drain pin D1 and the drain pin D2 are merged into the same output line OUT1, and the lines led out of the drain pin D3 and the drain pin D4 are merged into another output line OUT2. In some embodiments, one output line controls the detection channel corresponding to a certain electronic detonator. When two electronic detonators need to be detected at the same time, the output line OUT1 and the output line OUT2 are each connected to a detection channel. The control chip of the first control unit is connected to the input control pin I N1 and the input control pin I N2 respectively through the pin CH1_PW_SW, and the control chip of the first control unit is connected to the input control pin I N3 and the input control pin I N4 respectively through the pin CH2_PW_SW. The input control pin I N1, the input control pin I N2, the input control pin I N3 and the input control pin I N4 respectively control the opening and closing of the four internal switches.

[0057] The control chip of the first control unit can control the level of the relevant pins according to the second detection instruction, so as to realize the selection of the target power supply. For example, if the second detection instruction is to select the high voltage power supply as the target power supply, after receiving the second detection instruction, the control chip of the first control unit pulls up the levels of the pins CH1_PW_SW and CH2_PW_SW. After entering the input control pin IN1 and the input control pin IN4, the corresponding output signal level is still at a high level. After entering the input control pin IN2 and the input control pin IN3, the corresponding output signal level is still at a low level. The signal output by the input control pin IN1 can control the internal switch between the source pin S1 and the drain pin D1 to close, the signal output by the input control pin IN2 can control the internal switch between the source pin S2 and the drain pin D2 to open, the signal output by the input control pin IN3 can control the internal switch between the source pin S3 and the drain pin D3 to open, and the input control pin IN1 is connected to the control pin IN2. The signal output by N4 can control the internal switch between the source pin S4 and the drain pin D4 to close it. Since only the high-voltage power supply is connected to the output line OUT1 and the output line OUT2, the high-voltage power supply is selected as the target power supply. If the second detection instruction is to select the high-voltage power supply as the target power supply, the levels of the pins CH1_PW_SW and CH2_PW_SW are pulled down, and the closing and opening states of the four internal switches of the voltage switching unit are opposite to the previous ones, so that only the low-voltage power supply is connected to the output lines OUT1 and OUT2, so the low-voltage power supply is selected as the target power supply, the switching of the target power supply is realized, and finally the output target current is realized.

[0058] In addition, pin CH2_PW_SW is also connected to the ninth resistor R9, the other end of the ninth resistor R9 is connected to the analog ground AGND, pin CH1_PW_SW is also connected to the tenth resistor R10, the other end of the tenth resistor R10 is connected to the analog ground AGND, the power pin VDD and the power pin VL of the voltage switching unit are both connected to the power module to support the normal operation of the voltage switching unit, and the power pin VSS and the ground pin GND of the voltage switching unit are both connected to the analog ground AGND.

[0059] It should be noted that in the application scenario of the electrical performance detection of electronic detonators, the current flowing through the electronic detonator is usually switched in direction, and the electrical performance parameter values ​​under different flow directions are detected to further ensure the reliability of the electrical performance detection results. In some embodiments, the electronic detonator detector also includes a current switching unit. Specifically, the current switching unit is connected to the control chip of the first control unit. The current switching unit is used to adjust the current flow direction of the target current according to the third detection instruction received by the control chip of the first control unit. The control instruction for switching the current sent by the control module to the control chip of the first control unit is the third detection instruction.

[0060] Please refer to Figure 5 , Figure 5 It is an optional circuit structure diagram of the detection module. The current switching unit can be a multi-channel analog switch chip of the same model as the voltage switching unit. The source pin S1 to the source pin S4, the drain pin D1 to the drain pin D4, and the input control pins I N1 to I N4 mentioned below all refer to the pins of the current switching unit, which are distinguished from the pins of the aforementioned voltage switching unit. The following description is implemented under the condition that it is determined that the switch control circuit controls the switch group to be turned on.

[0061] When the levels of the control pins CH1_TX1 and CH_TX2 of the control chip of the first unit are pulled high, the electrical signal enters the current switching unit from the input control pin IN1 to the input control pin IN4, and the electrical signal level after entering the input control pin IN1 and the input control pin IN4 is still at a high level, while the electrical signal level entering the input control pin IN2 and the input control pin IN3 is at a low level, thereby controlling the corresponding internal switches to be closed or opened. At this time, the internal switch between the source pin S1 and the drain pin D1 is closed, the internal switch between the source pin S2 and the drain pin D2 is opened, the internal switch between the source pin S3 and the drain pin D3 is opened, and the internal switch between the source pin S4 and the drain pin D4 is closed. The target current enters from pin IN, flows into source pin S1 and source pin S3 through the eleventh resistor R11, and then flows out through drain pin D1, passes through the twelfth resistor R12, relay K2, electronic detonator, relay K1 and resistor R13, returns to the current switching unit, flows into source pin D3 and source pin D4, and finally flows to receiving pin CH1_RECEIVE through source pin S4. Receiving pin CH1_RECEIVE is a pin of the control chip. Receiving pin CH1_RECEIVE and source pin S4 are also connected to the first end of the fourteenth resistor R14, and the second end of the fourteenth resistor R14 is connected to analog ground AGND. In the above scenario, the flow direction of the target current is positive, relay K1 controls the signal to flow in, and relay K2 controls the signal to flow out. Figure 6 As indicated by the arrows, Figure 6 It is a flow diagram of the target current.

[0062] When the current flow direction needs to be switched, the levels of the control pins CH1_TX1 and CH_TX2 are low, so that the internal switch between the control electrode pin S1 and the drain pin D1 is disconnected, the internal switch between the source pin S2 and the drain pin D2 is closed, the internal switch between the source pin S3 and the drain pin D3 is closed, and the internal switch between the source pin S4 and the drain pin D4 is disconnected. At this time, the flow direction of the target current is reversed, and the flow direction is switched. At this time, the relay K1 control signal flows out, and the relay K2 control signal flows in. Figure 7 As indicated by the arrows, Figure 7 This is another schematic diagram of the target current flow.

[0063] In this embodiment, the current switching unit and the voltage switching unit are of the same model, and the connection relationship of some pins is also the same as the connection relationship of the corresponding pins of the voltage switching unit, so they are not described here in detail.

[0064] It can be understood that the voltage switching unit and the current switching unit can be simultaneously set in the detection module of the same electronic detonator detector. When performing electrical performance testing on the electronic detonator, the following scenarios are included: high voltage power supply and the target current direction is forward, high voltage power supply and the target current direction is reverse, low voltage power supply and the target current direction is forward, and low voltage power supply and the target current direction is reverse.

[0065] In some embodiments, please refer to Figure 8 , Figure 8 This is a module structure diagram of the electronic detonator detector provided by the utility model. The first control unit and the switch group may include a voltage switching unit, a current limiting unit and a current switching unit. For example, Figure 4 The output line OUT1 of the voltage switching unit shown in the figure is connected to a current limiting unit through the input end of the current limiting unit, and the output end of the current limiting unit is connected to the current limiting unit through the pin IN. Figure 6 The output line OUT2 of the voltage switching unit is also connected to another current limiting unit in the same way, and the output end of the current limiting unit is connected to another current switching unit, which is connected to another switch group. Figure 4 The voltage switching unit shown is capable of connecting two detection routes simultaneously and realizing electrical performance detection of two electronic detonators.

[0066] It should be noted that the electronic detonator detector also includes an output module, which is connected to the control module and the external device respectively. The detection module can send the target detection result to the control module, and the control module then sends the target detection result to the output module. The output module is used to output the target detection result to the external device.

[0067] Specifically, the output module includes a second control unit, a first interface, and a second interface. The second control unit is used to select the first interface to output the target detection result to the external device when the target detection result indicates that the electronic detonator is in a normal state. The second control unit is also used to select the second interface to output the target detection result to the external device when the target detection result indicates that the electronic detonator is in an abnormal state. It can be understood that the second control unit can be an STM32 chip, an MSP430 chip, an ESP32 chip, etc. The first interface and the second interface can be integrated on the same interface, and the external device can determine the target detection result by detecting the level change in the interface terminal.

[0068] Please refer to Fig. 9 , Fig. 9 This is an optional circuit structure diagram of the output module. The output module also includes two relay circuits. The second control module is connected to one relay circuit through pin IO_RELAY1, and the second control module is connected to another relay circuit through pin IO_RELAY2. Since the two relay circuits have the same structure, only the relay circuit including relay K3 is introduced here.

[0069] In this embodiment, the first interface and the second interface are integrated in the same terminal J15, wherein pins 1, 2 and 3 of the terminal J15 constitute the first interface, and pins 4, 5 and 6 of the terminal J15 constitute the second interface. The relay K3 has a coil, a moving end 3, a static end 2 and a static end 4, the moving end 3 is connected to pin 5 of the terminal J15, the static end 2 is connected to pin 4 of the terminal J15, and the static end 4 is connected to pin 6 of the terminal J15.

[0070] When the pin IO_RELAY2 is at a low level, the second field effect transistor Q5 is turned off, the drain of the second field effect transistor Q5 is connected to the coil of the relay K3, and the power supply VCC_12V is connected to the coil of the relay K3 and the capacitor C1 respectively. When the power supply VCC_12V charges the capacitor C1 to full capacity, there is no current loop in the relay circuit at this time, and the coil of the relay K3 has no current, and the moving end 3 is connected to the static end 4, that is, the 5th and 6th pins in the terminal J15 are connected, and the output of the target detection result is not triggered at this time. When the target detection result indicates that the electronic detonator is in a normal state, the level of the pin IO_RELAY2 is pulled high, the second field effect transistor Q5 is turned on, and the power supply VCC_12V provides current to the coil in the relay K3, and the moving end 3 is adsorbed to connect with the static end 2, that is, the 4th and 5th pins in the terminal J15 are connected, and the two have the same level. The operating principle of the other part of the relay circuit is the same. When the target detection result indicates that the electronic detonator is in an abnormal state, the second control unit controls the level of pin IO_RELAY1 to be pulled high, so that the pin connection relationship at the first interface changes. The external device can determine the output target detection result by detecting the level changes of each pin of terminal J15.

[0071] It can be understood that the external device can be a display device. When the target detection result output by the detector indicates that the electronic detonator is in a normal state, the display device displays that the electronic detonator under test is qualified. When the target detection result output by the detector indicates that the electronic detonator is in an abnormal state, the display device displays that the electronic detonator under test is unqualified.

[0072] In some embodiments, the electronic detonator detector further includes a plurality of address confirmation units, the control chip of the first control unit is connected to one address confirmation unit, and the control chip of the second control unit is also connected to one address confirmation unit. It can be understood that the number of address confirmation units is consistent with the number of control chips in the detection module and the output module, and the address confirmation units correspond to these control chips one by one, and the address confirmation units can determine the address code of the control chip connected thereto, wherein the address confirmation unit can be a dial switch, and the first control unit and the second control unit are used to receive the address code sent by the address confirmation unit, and the address code of each control chip is different. The first control unit and the second control unit receive the target control instruction sent by the control module, and the control instructions sent by the control module to any control unit are all target control instructions, including the above-mentioned first detection instruction, the second detection instruction and the third detection instruction, and these target control instructions include the address code of the sending object chip. When the control chip receives the target control instruction, it will first compare and verify the address code contained in the instruction with its own address code. If the two are consistent, then the verification is passed, and the control chip executes the target control instruction. If they are inconsistent, it means that the control instruction is sent by mistake, and the control chip does not execute the target control instruction.

[0073] In some embodiments, the control module, detection module and output module are all connected by wired connection. This is because the electromagnetic environment at the electronic detonator detection site is relatively complex, the stability of wireless communication is insufficient, and wired communication has higher reliability.

[0074] In some embodiments, the power supply provides 12V DC power, which can make the voltage connected to the detector lower compared to the 220V AC power supply in existing detectors, thereby avoiding the scenario where the detector is damaged by excessive voltage.

[0075] The above is a technical solution for detecting a single electronic detonator. Next, in combination with specific embodiments, the application scenario of the electronic detonator detector proposed in the utility model for detecting multiple electronic detonators will be explained in detail:

[0076] In the present embodiment, it is necessary to detect ten electronic detonators, and the control chip of the control module, the detection module, and the control chip of the output module all adopt the STM32 series control chip. Due to the hardware characteristics of the STM32 chip, the number of pins left for realizing the detection function is limited. A single STM32 chip can only realize the detection of five electronic detonators. Therefore, in this scene, the first control unit needs two control chips, namely the first control chip and the second control chip, and the address confirmation unit is provided with different addresses to distinguish the two. Each control chip is connected to a voltage switching unit, a current limiting unit, and a current switching unit, and then connected to a switch group and an electronic detonator. Each electronic detonator corresponds to a switch group, that is, when ten electronic detonators need to be detected, there are ten switch groups, a total of twenty relays. However, the first end of the switch control circuit only needs to be connected to the first control chip, and the second end of the switch control circuit is simultaneously connected to the relay coils in all switch groups, and the switch control circuit can simultaneously control all switches, thereby controlling all detection channels to be opened or closed simultaneously.

[0077] The control module sends a first detection instruction to the first control chip, and the first control chip controls the switch control circuit to close all switch groups. The control module then sends a second detection instruction and a third detection instruction to the first control chip and the second control chip to complete the electrical performance detection of different power supplies and different current directions. The first control chip and the second control chip determine whether there are electronic detonators in the detected electronic detonator group whose electrical performance is unqualified. At the same time, the first control chip also queries the tube code information to obtain the tube code detection result, and obtains the final target detection result based on the tube code detection result and the electrical performance detection result, and then sends the target detection result to the control module. As long as one detection channel is abnormal, the target detection result returned is that the electronic detonator is unqualified.

[0078] An electrostatic protector is also provided between the multiple switch groups and the multiple electronic detonators. It can be understood that the electrostatic protector can be a transient voltage suppression diode or other forms of electrostatic protectors. Fig.10 , Fig.10 This is a connection circuit diagram of an electrostatic protector provided by an embodiment of the utility model. In this embodiment, two single-chip arrays of model ESDA17-55C6 are selected. A single array can protect five routes from static electricity at the same time, thereby saving space on the circuit board. Specifically, switch group 1, switch group 2 to switch group 10, the two relays in each switch group are respectively connected to the two pins of terminal J4, thereby forming a circuit, and each circuit corresponds to an electronic detonator. Terminal J4 is used to access the registration tooling to achieve the corresponding connection between the switch group and the electronic detonator.

[0079] The present application also provides an electronic detonator detection system, please refer to Fig.11, Fig.11 It is a structural diagram of the electronic detonator detection system provided by the utility model. The electronic detonator detection system includes a registration tool, a code scanning device and the above-mentioned electronic detonator detector. The electronic detonator detector is connected to the registration tool and the code scanning device respectively. The registration tool is used to fix the electronic detonator. It can be understood that the registration tool refers to a special equipment and tool used in the performance detection and quality inspection process of the electronic detonator, which can accurately measure various parameters of the electronic detonator, or can assist in the installation and connection of the electronic detonator. The code scanning device is used to identify the barcode on the surface of the electronic detonator, so as to read the target tube code information and transmit it to the electronic detonator detector for detection.

[0080] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the core idea of ​​the utility model. The above is only a preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, several improvements, modifications or changes can be made, and the above technical features can be combined in an appropriate manner. These improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. An electronic detonator detector, characterized in that: The electronic detonator detector comprises a control module and a detection module; Wherein, the control module is connected to the detection module, and the control module is used to provide the detection module with a target current; the detection module is connected to the electronic detonator, and the detection module is used to supply the target current to the electronic detonator to obtain the electrical performance parameter value generated by the electronic detonator according to the target current, and detect the electrical performance parameter value according to the built-in preset reference parameter value to obtain the electrical performance detection result of the electronic detonator; the electrical performance detection result is used to characterize whether the electrical performance parameter value of the electronic detonator is a normal value or an abnormal value; The control module is used to obtain the target tube code information of the electronic detonator and send the target tube code information to the detection module; The detection module is also used to detect the target pipe code information according to the preset pipe code information built into the control module to obtain a pipe code detection result, and determine the target detection result according to the pipe code detection result and the electrical performance detection result; the pipe code detection result is used to characterize whether the target pipe code information is a normal value or an abnormal value.

2. An electronic detonator detector according to claim 1, characterized in that: The detection module includes a first control unit and a switch group, the first control unit is connected to the control module, the first control unit is connected to the switch group, the first control unit is used to receive a first detection instruction sent by the control module, and put the switch group in a closed state according to the first detection instruction; the switch group is used to be connected to the electronic detonator, and the switch group is also used to supply the target current to the electronic detonator according to the closed state.

3. An electronic detonator detector according to claim 2, characterized in that: The electronic detonator detector also includes a current limiting unit, one end of which is connected to the first control unit, and the other end of which is connected to the switch group, and the current limiting unit is used to limit the target current.

4. An electronic detonator detector according to claim 2, characterized in that: The electronic detonator detector also includes a voltage switching unit, a high-voltage power supply and a low-voltage power supply. The voltage switching unit is connected to the high-voltage power supply and the low-voltage power supply respectively, and the voltage switching unit is connected to the first control unit. The voltage switching unit is used to select the high-voltage power supply and the low-voltage power supply according to the second detection instruction received by the first control unit, determine the target power supply, and use the current output by the target power supply as the target current.

5. An electronic detonator detector according to claim 2, characterized in that: The electronic detonator detector also includes a current switching unit, which is connected to the first control unit and is used to adjust the current flow direction of the target current according to a third detection instruction received by the first control unit.

6. The electronic detonator detector according to claim 1, characterized in that: The electronic detonator detector also includes an output module, which is connected to the control module and an external device respectively, and is used to output the target detection result to the external device.

7. An electronic detonator detector according to claim 6, characterized in that: The output module includes a second control unit, a first interface and a second interface. The second control unit is used to select the first interface to output the target detection result to the external device when the target detection result indicates that the electronic detonator is in a normal state; the second control unit is also used to select the second interface to output the target detection result to the external device when the target detection result indicates that the electronic detonator is in an abnormal state.

8. An electronic detonator detector according to claim 2, characterized in that: The electronic detonator detector also includes an address confirmation unit, the first control unit is connected to the address confirmation unit, and the first control unit is used to receive an address code sent by the address confirmation unit; the first control unit receives a target control instruction sent by the control module, and verifies the target control instruction according to the address code to execute the target control instruction.

9. An electronic detonator detector according to claim 3, characterized in that: The current limiting unit comprises: a first triode, a second triode, a first resistor and a second resistor; the first triode has a first collector, a first base and a first emitter, and the second triode has a second collector, a second base and a second emitter; The first control unit is connected to the first collector and the first end of the first resistor respectively, the second end of the first resistor is connected to the first base and the second collector respectively, the first emitter is connected to the second base and the first end of the second resistor respectively, and the second end of the second resistor is connected to the second emitter and the switch group.

10. An electronic detonator detection system, characterized in that: The electronic detonator detection system comprises: a registration tool, a code scanning device and an electronic detonator detector as claimed in any one of claims 1 to 9; Among them, the electronic detonator detector is connected to the registration tooling and the code scanning device respectively, the registration tooling is used to fix the electronic detonator, and the code scanning device is used to identify the target tube code information of the electronic detonator.

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