Portable initiating explosive device equivalent system and equipment

Abstract

The invention provides a portable initiating explosive device equivalent system and equipment. The problems that a traditional initiating explosive device equivalent device is large in size, low in testing flexibility and efficiency, insufficient in electrical isolation and single in function are effectively solved. In the equivalent system, an acquisition module is used for acquiring equivalent voltage signals, sampling voltage signals and reference time signals of multiple paths of initiating explosive devices to be tested, an isolation module is used for electrically isolating the equivalent voltage signals and the sampling voltage signals to obtain isolated equivalent voltage signals and isolated sampling voltage signals, and a control module is used for controlling the sampling voltage signals and the isolation equivalent voltage signals. And a processor used for calculating a state signal of the to-be-tested initiating explosive device based on the isolation equivalent voltage signal and the isolation sampling voltage signal, and starting the to-be-tested initiating explosive device based on the state signal, a reference time signal and an ignition current signal corresponding to the isolation equivalent voltage signal. And controlling the portable initiating explosive device equivalent system to complete the test of the to-be-tested initiating explosive device in multiple test modes.

Description

Technical Field

[0001] The present application relates to the technical field of pyrotechnic equivalent devices, and in particular to a portable pyrotechnic equivalent system and equipment. Background Art

[0002] Pyrotechnics are a general term for disposable components and devices filled with gunpowder or explosives that, when stimulated by external stimuli, burn or explode to ignite the gunpowder or detonate the explosives. They are widely used in military engineering, strategic missiles, aerospace systems, and other areas. Pyrotechnics are the most sensitive initiating energy source for detonation and ignition, and their safety and reliability directly impact the safety and reliability of weapon systems. Pyrotechnic equivalents are used to simulate the operating behavior of pyrotechnics (such as fuses and explosive devices) under specific conditions to ensure that they function as expected in a real environment. They receive timing commands from the system and simulate the pyrotechnic response. Using pyrotechnic equivalents, the system can be fully tested and verified without the use of actual pyrotechnics, thereby ensuring system performance and reliability.

[0003] At present, traditional pyrotechnic equivalents generally have the problem of being bulky and heavy, which directly limits their application in complex and changeable test environments that require rapid response. Due to their large size, traditional pyrotechnic equivalents are not only inconvenient to carry, but also difficult to effectively deploy in a limited space, which greatly reduces the flexibility and efficiency of the test. Traditional pyrotechnic equivalents also have deficiencies in electrical isolation, which increases safety risks during the testing process. At the same time, the lack of ground isolation of traditional pyrotechnic equivalents may also cause the acquisition circuit to be subject to external interference, affecting the accuracy of the test results. Traditional pyrotechnic equivalents have a single function and can usually only simulate the test conditions of one type of pyrotechnic, while pyrotechnic equivalents often need to simulate multiple different types of test modes. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a portable pyrotechnic equivalent system and equipment. This portable pyrotechnic equivalent system and equipment effectively solves the problems of traditional pyrotechnic equivalents such as large size, low testing flexibility and efficiency, insufficient electrical isolation and single function.

[0005] In a first aspect, an embodiment of the present application provides a portable pyrotechnic equivalent system, the equivalent system comprising a collection module, an isolation module, and a control module:

[0006] The acquisition module is used to collect equivalent voltage signals, sampled voltage signals, and reference time signals of multiple channels of initiating explosive devices to be tested, and input the equivalent voltage signals and the sampled voltage signals to the isolation module, and output the reference time signal to the control module;

[0007] The isolation module is used to electrically isolate the equivalent voltage signal and the sampled voltage signal to obtain an isolated equivalent voltage signal and an isolated sampled voltage signal, and input the isolated equivalent voltage signal and the isolated sampled voltage signal to the control module;

[0008] The control module is used to calculate the status signal of the pyrotechnic product to be tested based on the isolated equivalent voltage signal and the isolated sampling voltage signal, and to control the portable pyrotechnic product equivalent system to complete the test of the pyrotechnic product to be tested in multiple test modes based on the status signal, the reference time signal and the ignition current signal corresponding to the isolated equivalent voltage signal.

[0009] In conjunction with the first aspect, an embodiment of the present application provides a first possible implementation of the first aspect, wherein the control module, when used to control the portable pyrotechnic equivalent system to complete testing of the pyrotechnic device to be tested in multiple test modes, is specifically used to:

[0010] determining whether the ignition current signal based on the reference time signal meets a preset ignition condition;

[0011] If so, the test status of the pyrotechnic device to be tested is determined based on the test mode of the portable pyrotechnic device equivalent system.

[0012] In combination with the first aspect, an embodiment of the present application provides a second possible implementation of the first aspect, wherein the control module, when used to determine the test status of the pyrotechnic device to be tested based on the test mode of the portable pyrotechnic device equivalent system, is specifically used to:

[0013] Determining a test mode of the portable pyrotechnic device equivalent system and an ignition current signal under the corresponding mode;

[0014] The test state of the initiating device to be tested is determined based on the ignition current signal and the reference time signal.

[0015] In combination with the first aspect, an embodiment of the present application provides a third possible implementation of the first aspect, wherein the control module, when used to calculate the status signal of the initiating device to be tested based on the isolated equivalent voltage signal and the isolated sampled voltage signal, is specifically used to:

[0016] Performing a validity test based on the isolated equivalent voltage signal and the isolated sampled voltage signal to obtain a test result;

[0017] The isolation equivalent voltage signal and the isolation sampling voltage signal are calculated based on the test result.

[0018] In combination with the first aspect, an embodiment of the present application provides a fourth possible implementation of the first aspect, wherein, when calculating the isolated equivalent voltage signal and the isolated sampled voltage signal based on the test result, it is specifically used to:

[0019] If the test result is that the signal is valid, determining the calculation method corresponding to the calculation status signal;

[0020] A corresponding status signal is calculated based on the corresponding calculation method, and the status signal is displayed.

[0021] In combination with the first aspect, an embodiment of the present application provides a fifth possible implementation of the first aspect, wherein the control module is configured to calculate a status signal of an initiating device based on the isolated equivalent voltage signal and the isolated sampled voltage signal, specifically configured to:

[0022] determining whether the isolation equivalent voltage signal satisfies a preset error condition based on a voltage value of the isolation equivalent voltage signal;

[0023] If so, the voltage value of the actual isolated equivalent voltage signal is calculated using the isolated sampled voltage signal.

[0024] In combination with the first aspect, an embodiment of the present application provides a sixth possible implementation of the first aspect, wherein the isolation module, after being used to electrically isolate and amplify the equivalent voltage signal and the sampled voltage signal to obtain the isolated equivalent voltage signal and the isolated sampled voltage signal, is specifically used to:

[0025] Determining a corresponding amplification processing method based on the isolated equivalent voltage signal and the isolated sampled voltage signal;

[0026] The isolated equivalent voltage signal and the isolated sampling voltage signal are amplified respectively based on the amplification processing method.

[0027] In combination with the first aspect, an embodiment of the present application provides an eighth possible implementation of the first aspect, wherein the isolation module, when used to electrically isolate and amplify the equivalent voltage signal and the sampled voltage signal to obtain the isolated equivalent voltage signal and the isolated sampled voltage signal, is specifically used to:

[0028] Convert the equivalent voltage signal and the sampled voltage signal by a preset conversion method;

[0029] The converted equivalent voltage signal and the sampled voltage signal are processed to complete electrical isolation of the equivalent voltage signal and the sampled voltage signal.

[0030] In combination with the first aspect, the embodiment of the present application provides a ninth possible implementation of the first aspect, wherein the equivalent system further includes a power supply module;

[0031] When the isolation module is used to input the isolated equivalent voltage signal and the isolated sampled voltage signal to the control module, it is specifically used to:

[0032] Responding to the received power supply instruction, determining the power supply object and the corresponding power supply method;

[0033] Based on the power supply instruction, the power supply module is controlled to adopt the power supply method to supply power to the power supply object.

[0034] In a second aspect, an embodiment of the present application provides a portable pyrotechnic equivalent device, wherein the equivalent device includes any one of the portable pyrotechnic equivalent systems described above.

[0035] An embodiment of the present application provides a portable pyrotechnic equivalent system, which includes an acquisition module, an isolation module and a control module: the acquisition module is used to acquire equivalent voltage signals, sampling voltage signals and reference time signals of multiple pyrotechnics to be tested, and input the equivalent voltage signals and the sampling voltage signals into the isolation module, and output the reference time signal into the control module; the isolation module is used to electrically isolate the equivalent voltage signals and the sampling voltage signals to obtain isolated equivalent voltage signals and isolated sampling voltage signals, and input the isolated equivalent voltage signals and the isolated sampling voltage signals into the control module; the control module is used to calculate the status signal of the pyrotechnic to be tested based on the isolated equivalent voltage signals and the isolated sampling voltage signals, and calculate the status signal of the pyrotechnic to be tested based on the status signal, the reference time signal and The ignition current signal corresponding to the isolated equivalent voltage signal is controlled to complete the test of the pyrotechnic product to be tested in multiple test modes. The signal collected by the acquisition module is electrically isolated by the isolation module, thereby avoiding the problem that the traditional pyrotechnic product equivalent device has insufficient electrical isolation, thereby ensuring the safety of the pyrotechnic product equivalent system and the accuracy of the test on the pyrotechnic product. The pyrotechnic product equivalent system is designed to be portable, thereby avoiding the problems of large size, low test flexibility and efficiency of the traditional pyrotechnic product equivalent device, thereby improving the flexibility and efficiency of the pyrotechnic product test, and setting up multiple test modes for pyrotechnic product testing, thereby avoiding the problem that the traditional pyrotechnic product equivalent device has a single function and can usually only simulate the test conditions of one type of pyrotechnic product, thereby increasing the richness of the pyrotechnic product equivalent system. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 The following is a structural block diagram of a first portable pyrotechnic equivalent system provided by an embodiment of the present application;

[0038] Figure 2 The schematic diagram of the portable explosive device equivalent system provided by the embodiment of the present application is shown;

[0039] Figure 3 The schematic diagram of the power supply module provided in the embodiment of the present application is shown;

[0040] Figure 4 The upper portion of a schematic diagram of a portable pyrotechnic equivalent device provided in an embodiment of the present application is shown;

[0041] Figure 5 The lower structural diagram of the portable pyrotechnic equivalent device provided in an embodiment of the present application is shown.

[0042] Description of some drawings:

[0043] 401-serial port display; 501-other acquisition device socket;

[0044] 502-Lithium battery charging port; 503-Power button. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the drawings in the present application only serve the purpose of illustration and description and are not used to limit the scope of protection of the present application. In addition, it should be understood that the schematic drawings are not drawn to scale. The flowcharts used in this application illustrate the operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowcharts can be implemented out of sequence, and steps without logical context can be reversed or implemented simultaneously. In addition, those skilled in the art, under the guidance of the contents of this application, can add one or more other operations to the flowchart, or remove one or more operations from the flowchart.

[0046] In addition, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0047] It should be noted that the term "comprising" will be used in the embodiments of the present application to indicate the existence of the features declared thereafter, but does not exclude the addition of other features.

[0048] At present, traditional pyrotechnic equivalents generally have the problem of being bulky and heavy, which directly limits their application in complex and changeable test environments that require rapid response. Due to their large size, traditional pyrotechnic equivalents are not only inconvenient to carry, but also difficult to effectively deploy in a limited space, which greatly reduces the flexibility and efficiency of the test. Traditional pyrotechnic equivalents also have deficiencies in electrical isolation, which increases safety risks during the testing process. At the same time, the lack of ground isolation of traditional pyrotechnic equivalents may also cause the acquisition circuit to be subject to external interference, affecting the accuracy of the test results. Traditional pyrotechnic equivalents have a single function and can usually only simulate the test conditions of one type of pyrotechnic, while pyrotechnic equivalents often need to simulate multiple different types of test modes.

[0049] Based on this, an embodiment of the present application provides a portable pyrotechnic equivalent system and equipment, which is described below through embodiments.

[0050] Example 1

[0051] To facilitate understanding of this embodiment, a portable pyrotechnic equivalent system disclosed in the embodiment of this application is first introduced in detail. Figure 1 The structural block diagram of a portable pyrotechnic equivalent system shown in the figure, a portable pyrotechnic equivalent system provided by the present application, the equivalent system includes an acquisition module, an isolation module and a control module:

[0052] The acquisition module is used to collect equivalent voltage signals, sampled voltage signals, and reference time signals of multiple channels of initiating explosive devices to be tested, and input the equivalent voltage signals and the sampled voltage signals to the isolation module, and output the reference time signal to the control module;

[0053] The isolation module is used to electrically isolate the equivalent voltage signal and the sampled voltage signal to obtain an isolated equivalent voltage signal and an isolated sampled voltage signal, and input the isolated equivalent voltage signal and the isolated sampled voltage signal to the control module;

[0054] The control module is used to calculate the status signal of the pyrotechnic product to be tested based on the isolated equivalent voltage signal and the isolated sampling voltage signal, and to control the portable pyrotechnic product equivalent system to complete the test of the pyrotechnic product to be tested in multiple test modes based on the status signal, the reference time signal and the ignition current signal corresponding to the isolated equivalent voltage signal.

[0055] The portable explosive device equivalent system provided in this application, such as Figure 2 The figure shows a schematic diagram of the principle of the entire testing process of the portable pyrotechnic equivalent system from ignition signal acquisition, equipment power supply, electrical isolation, control, etc. The acquisition module realizes a large-scale and accurate acquisition of the voltage across the pyrotechnic equivalent resistance by connecting a 1-ohm pyrotechnic equivalent resistance and a 10-milliohm sampling resistance in series. 1 ohm is the resistance value of the actual pyrotechnic, so a 1-ohm pyrotechnic equivalent resistance is set, and a 10-milliohm sampling resistance and a 1-ohm pyrotechnic equivalent resistance are set to form a series mode. The two resistors are connected in series to divide the voltage to obtain the equivalent voltage signal output by the equivalent resistance and the sampling voltage signal output by the sampling resistance. This can ensure that the acquisition range covers a wide range of changes from small currents to large currents, ensure that the status information of the equivalent resistance or sampling resistance can be effectively obtained under various working conditions, and ensure that the acquisition accuracy is at a high level, thereby realizing accurate monitoring of the working status of the pyrotechnic. The equivalent resistor and the sampling resistor are designed as power resistors to prevent overheating due to excessive current during the experiment, thereby ensuring the safe and stable operation of the circuit and avoiding potential damage risks. The collected equivalent voltage signal and the sampling voltage signal are input into the isolation module.

[0056] The acquisition module and the connector socket facing the outside of the system, the connector interface, and the connectors of the portable pyrotechnic equivalent are three in total, namely, the ignition acquisition connector, the T0 acquisition connector, and the other acquisition device connector. The ignition acquisition connector has six channels, which can simultaneously acquire the real-time voltage of the six ignition ports, that is, the equivalent system described in this application can simultaneously realize the simulation of 6 channels of pyrotechnics, and the connectors all adopt a fool-proof design to avoid wrong insertion; the T0 acquisition connector, the acquisition module also uses the reference time signal T0 as the time reference 0 point to monitor the start and end time of the ignition, and the T0 acquisition connector is directly connected to the ADC peripheral of the control module, that is, the reference time signal T0 is also output to the control module; the other acquisition device connector, the acquisition module also leads out the signals at both ends of the pyrotechnic equivalent resistance and the sampling resistor, which is convenient for the device to be connected to an oscilloscope, a recorder and other equipment, and is convenient for observing the waveform of the voltage signal through an oscilloscope, a recorder and other equipment, and analyzing the signal changes in real time, which is convenient for troubleshooting and experimental performance evaluation.

[0057] Before receiving the equivalent voltage signal and the sampled voltage signal, the isolation module is provided with a filtering protection circuit to filter the equivalent voltage signal and the sampled voltage signal respectively. The filtering protection circuit can be in the form of a filter, etc., which can be specifically selected in actual use to avoid the existence of clutter and interference in the collected equivalent voltage signal and the sampled voltage signal, which affects the accuracy of the equivalent voltage signal and the sampled voltage signal. The filtering protection circuit outputs the equivalent voltage signal and the sampled voltage signal to the isolation module, and the isolation module is used to filter the equivalent voltage signal and the sampled voltage signal. Electrical isolation and amplification, wherein the isolation module mainly uses silicon dioxide capacitor isolation chip for isolation, and isolates the equivalent voltage signal and the sampling voltage signal of each pyrotechnic product respectively, that is, 12 capacitor isolation chips need to be set up, and the input end of each isolation chip uses 12 5V_iso, and the output end power supply uses A5V+ to achieve electrical isolation and ground isolation of each path, thereby obtaining an isolated equivalent voltage signal and an isolated sampling voltage signal, wherein amplification is to avoid the voltage value of the equivalent voltage signal or the sampling voltage signal being too small to make it impossible to accurately identify, and input the isolated equivalent voltage signal and the isolated sampling voltage signal to the control module.

[0058] When the isolation module is used to electrically isolate and amplify the equivalent voltage signal and the sampled voltage signal to obtain an isolated equivalent voltage signal and an isolated sampled voltage signal, it is specifically used to:

[0059] Convert the equivalent voltage signal and the sampled voltage signal by a preset conversion method;

[0060] The converted equivalent voltage signal and the sampled voltage signal are processed to complete electrical isolation of the equivalent voltage signal and the sampled voltage signal.

[0061] In this embodiment, the isolation module converts the equivalent voltage signal and the sampled voltage signal through a preset conversion method, and the preset conversion method is a ΔΣ modulator, that is, the equivalent voltage signal and the sampled voltage signal in the analog state are respectively converted into the equivalent voltage signal and the sampled voltage signal in the digital state through the ΔΣ modulator, that is, the equivalent voltage signal and the sampled voltage signal at this time are both digital signals, and the equivalent voltage signal and the sampled voltage signal in the digital state are further processed through retiming and a third-order low-pass filter, so as to realize the conversion of the equivalent voltage signal and the sampled voltage signal in the digital state into the equivalent voltage signal and the sampled voltage signal in the analog state, that is, through retiming and a third-order low-pass filter, the electrical isolation effect of the equivalent voltage signal and the sampled voltage signal for the signal is achieved.

[0062] After the isolation module is used to electrically isolate and amplify the equivalent voltage signal and the sampled voltage signal to obtain the isolated equivalent voltage signal and the isolated sampled voltage signal, it is specifically used to:

[0063] Determining a corresponding amplification processing method based on the isolated equivalent voltage signal and the isolated sampled voltage signal;

[0064] The isolated equivalent voltage signal and the isolated sampling voltage signal are amplified respectively based on the amplification processing method.

[0065] In this embodiment, the isolation module also performs targeted amplification processing on the isolated equivalent voltage signal and the isolated sampling voltage signal. If it is determined that the voltage values of the isolated equivalent voltage signal and the isolated sampling voltage signal to be output are too small, corresponding amplification processing methods are configured for the isolated equivalent voltage signal and the isolated sampling voltage signal respectively. The amplification processing method is implemented based on an amplification processing circuit, and the amplification processing circuit is obtained by combining components such as operational amplifiers, resistors, and capacitors. Among them, the amplification factors corresponding to the amplification processing circuit and the isolated sampling voltage signal amplification processing circuit for the isolated equivalent voltage signal are inconsistent. This application sets the amplification factor for the isolated equivalent voltage signal to 50 times and the amplification factor for the isolated sampling voltage signal to 16 times, which helps to more easily detect slight voltage value changes, thereby improving the sensitivity and accuracy of the system.

[0066] The control module is used to receive the isolated equivalent voltage signal and the isolated sampling voltage signal. The control module receives various signals through a microcontroller of model GD32, and calculates the state signal and reference time signal of the pyrotechnic product to be tested based on the isolated equivalent voltage signal and the isolated sampling voltage signal. The state signal includes an ignition signal, an end signal, an ignition pulse width, an pyrotechnic product equivalent resistance state signal, and a port state. The ignition signal and the end signal can also be determined based on the ignition pulse width. The reference time signal is the T0 signal. Due to the relationship between the voltage signal and the current signal, after obtaining the isolated At the same time as the isolated equivalent voltage signal, the ignition current signal corresponding to the isolated equivalent voltage signal is also obtained, and the portable pyrotechnic equivalent system is controlled to complete the test of the pyrotechnic to be tested in multiple test modes. The test mode of the equivalent system can be determined based on the status signal and the reference time signal, and the ignition current signal corresponding to the isolated equivalent voltage signal can be added to confirm the performance of the pyrotechnic to be tested in the test mode, thereby obtaining the corresponding result, and the result can also be displayed in different colors, among which the status signal and the remembered time signal can also be displayed for easy viewing.

[0067] When the control module is used to control the portable pyrotechnic equivalent system to complete the testing of the pyrotechnic device to be tested in multiple test modes, it is specifically used to:

[0068] determining whether the ignition current signal based on the reference time signal meets a preset ignition condition;

[0069] If so, the test status of the pyrotechnic device to be tested is determined based on the test mode of the portable pyrotechnic device equivalent system.

[0070] In this embodiment, after calculating the status signal and reference time signal of the pyrotechnic product to be tested, the control module starts counting based on the reference time signal, that is, starting counting from 0. During the counting process, it is judged in real time whether the current value of the ignition current signal corresponding to the isolated equivalent voltage signal received in real time meets the preset ignition condition. The preset ignition condition is that the current value of the ignition current signal exceeds the preset threshold range. The preset threshold range is specifically set according to the actual situation. If it meets the preset ignition condition, the test of the pyrotechnic product to be tested is determined based on the test mode of the portable pyrotechnic product equivalent system. Test state, the test modes of the portable pyrotechnic equivalent system include high-voltage mode, low-voltage mode, and path test. Different preset ignition conditions are set for different test modes, that is, different preset threshold ranges are set. That is, if the current value of the ignition current signal meets the preset ignition condition after the timing starts based on the reference time signal, the control module completes the test normally. If the current value of the ignition current signal does not meet the preset ignition condition after the timing starts based on the reference time signal, the control module controls the test to be in standby state all the time, that is, the test state includes normal completion, standby, and failure.

[0071] The high-voltage mode is that the control module controls the portable pyrotechnic equivalent system through a microcontroller to allow a maximum current of 20A to pass after receiving a reference time signal. If the current range is exceeded, the portable pyrotechnic equivalent device will issue a current abnormality warning; the low-voltage mode is that the control module controls the portable pyrotechnic equivalent system through a microcontroller to allow a maximum current of 60mA to pass after receiving a reference time signal. If the current range is exceeded, the portable pyrotechnic equivalent device will issue a current abnormality warning; the path test is that the control module controls the portable pyrotechnic equivalent system through a microcontroller to ignore the reference time signal and allow a maximum current of 20A to pass. If the current range is exceeded, the portable pyrotechnic equivalent device will issue a current abnormality warning.

[0072] When the control module is used to determine the test status of the pyrotechnic device to be tested based on the test mode of the portable pyrotechnic device equivalent system, it is specifically used to:

[0073] Determining a test mode of the portable pyrotechnic device equivalent system and an ignition current signal under the corresponding mode;

[0074] The test state of the initiating device to be tested is determined based on the ignition current signal and the reference time signal.

[0075] In this embodiment, the control module is provided with three physical buttons, namely mode switching, reset, and switch. The mode switching button controls the microprocessor to change the test mode of the portable pyrotechnic equivalent system. The functions of the reset button and the switch button are equivalent to those of the general reset button and the switch button. When testing the pyrotechnic to be tested, it is necessary to first determine the test mode of the portable pyrotechnic equivalent system, and judge the test status of the pyrotechnic to be tested based on the reference time signal and the current value of the ignition current signal. For example, in the high-voltage mode, after timing based on the reference time signal, it is judged that the current value of the ignition current signal meets the preset ignition conditions. At this time, the test status of the pyrotechnic to be tested is normally completed. If the current value of the ignition current signal at this time exceeds the maximum current of 20A, the test status of the pyrotechnic to be tested is a fault. The low-voltage mode is similar. In the path test mode, regardless of whether there is a time reference signal, if the current value of the ignition current signal exceeds the maximum current of 20A, the test status at this time is a fault.

[0076] When the control module is used to calculate the status signal of the initiating device to be tested based on the isolated equivalent voltage signal and the isolated sampled voltage signal, it is specifically used to:

[0077] Performing a validity test based on the isolated equivalent voltage signal and the isolated sampled voltage signal to obtain a test result;

[0078] The isolation equivalent voltage signal and the isolation sampling voltage signal are calculated based on the test result.

[0079] In this embodiment, after receiving the isolated equivalent voltage signal and the isolated sampling voltage signal, the control module performs a validity test on the isolated equivalent voltage signal and the isolated sampling voltage signal to obtain a test result. The validity test is a 5ms digital filtering test, that is, after a valid signal is collected 5 times in 5ms, the signal is determined to be valid. If the isolated equivalent voltage signal is collected 5 times in 5ms, the received isolated equivalent voltage signal is determined to be valid; otherwise, it is invalid. The same is true for the validity test of the isolated sampling voltage signal. There are two test results, namely, signal valid and signal invalid. When the test result is that the signal is valid, the isolated equivalent voltage signal and the isolated sampling voltage signal are calculated. When the test result is that the signal is invalid, the isolated equivalent voltage signal and the isolated sampling voltage signal are calculated.

[0080] The calculation of the isolated equivalent voltage signal and the isolated sampled voltage signal based on the test result is specifically used for:

[0081] If the test result is that the signal is valid, determining the calculation method corresponding to the calculation status signal;

[0082] A corresponding status signal is calculated based on the corresponding calculation method, and the status signal is displayed.

[0083] In this embodiment, when the test result is that the signal is valid, it is necessary to calculate the isolated equivalent voltage signal and the isolated sampling voltage signal to obtain the corresponding calculation status signal. The control module pre-stores a variety of status signal calculation methods, such as calculating the ignition signal and the end signal based on the pulse width of the isolated equivalent voltage signal, where the start time of the ignition signal is the time when the pulse width appears, and the end signal is the time when the pulse width disappears, and the corresponding status signal is calculated based on the calculation method.

[0084] The portable pyrotechnic equivalent system is also connected to a serial port display, and the control module displays real-time data on the serial port display through the serial port peripheral of the microcontroller. The display content includes the status and reception number of the reference time signal T0, the real-time voltage across the 6-way pyrotechnic equivalent resistors, the ignition time, end time, pulse width, current size during ignition, and port status of the 6-way pyrotechnic equivalent resistors. The serial port display can also display the test status, such as the standby status is displayed in white, the fault status is red, the normal completion is green, and the status of receiving the reference time signal T0 is green.

[0085] The control module is used to calculate the status signal of the explosive device based on the isolated equivalent voltage signal and the isolated sampled voltage signal, specifically to:

[0086] determining whether the isolation equivalent voltage signal satisfies a preset error condition based on a voltage value of the isolation equivalent voltage signal;

[0087] If so, the voltage value of the actual isolated equivalent voltage signal is calculated using the isolated sampled voltage signal.

[0088] In this embodiment, the control module determines whether the isolated equivalent voltage signal meets a preset error condition based on the voltage value of the isolated equivalent voltage signal. The preset error condition is that the voltage value of the isolated equivalent voltage signal exceeds the range of the ADC external to the control module, that is, the voltage value of the isolated equivalent voltage signal is close to the range of the ADC external to the control module. If it meets the requirements, it is necessary to calculate the actual voltage value of the isolated equivalent voltage signal. At this time, the actual voltage value of the isolated equivalent voltage signal is calculated based on the isolated sampling voltage signal. For example, when the voltage value of the isolated equivalent voltage signal is 6V, the sampling voltage is 0. The voltage across the resistor is 0.06V. After amplification and measurement, the ADC detection value of the equivalent resistance should be 6V*50, which is 300V. However, the range is 0-5V, so it exceeds the range. After amplification and measurement, the ADC detection value of the resistor should be 0.06V*16, which is 0.96V. In this way, we can reversely calculate 0.96V, and 0.96 divided by 16 is the voltage across the sampling resistor of 0.06V. Then 0.06 multiplied by 100 is the voltage across the equivalent resistor of pyrotechnics of 6V, thereby obtaining the actual voltage value of the isolated equivalent voltage signal, that is, the accuracy of the isolated equivalent voltage signal is guaranteed based on the isolated sampling voltage signal.

[0089] The equivalent system further includes a power supply module;

[0090] When the isolation module is used to input the isolated equivalent voltage signal and the isolated sampled voltage signal to the control module, it is specifically used to:

[0091] Responding to the received power supply instruction, determining the power supply object and the corresponding power supply method;

[0092] Based on the power supply instruction, the power supply module is controlled to adopt the power supply method to supply power to the power supply object.

[0093] In this embodiment, the control module outputs a power supply instruction to the power supply module. The power supply module uses a 12V small rechargeable lithium battery as an energy source. Since the lithium battery has a high energy storage efficiency, it is more compact than other types of batteries at the same capacity and is extremely suitable as an energy supply for small pyrotechnics. The lithium battery supports recycling. After the power is exhausted, it only needs to be charged by a DC power supply, eliminating the inconvenience of having to continuously connect to an external power supply or frequently replace batteries. It also provides a stable and independent power supply for the acquisition circuit and the microcontroller through a miniaturized DC / DC power conversion chip and an LDO low voltage difference linear voltage regulator circuit. The power supply instruction includes a power supply object and a corresponding power supply method. The power supply object is the control module and the isolation module, and the power supply of the isolation module is also generated by the power supply module. The isolated power supply is provided to ensure the complete independence of power supply at both ends. After receiving the power supply instruction, the isolation module responds to the received power supply instruction and reads the power supply instruction to determine the power supply object and the corresponding power supply method; based on the power supply instruction, the power supply module is controlled to adopt the power supply method to power the power supply object, and outputs one 3.3V voltage, one A5V+ voltage, and one D5V+ voltage through the DC-DC chip and the linear regulator. The D5V+ voltage outputs 12 mutually isolated 5V_iso voltages through the DC-DC chip. The power supply module outputs voltage, one 3.3V voltage is used for the control module, the 12 5V_iso voltages are used for the input ends of the 12 isolation modules respectively, and one A5V+ voltage is used for the output ends of the 12 isolation modules.

[0094] The power supply principle diagram of the power supply module is as follows Figure 3 As shown, the 12V lithium battery first generates a 5.9V voltage through the DC-DC power conversion chip. The 5.9V voltage outputs the voltage of D5V+ under the action of the step-down diode. The 5.9V voltage outputs the voltage of 3.3V and A5V+ respectively through two linear regulators. This not only realizes the voltage conversion and stable output, but also improves the efficiency and stability of the entire circuit. The use of linear regulators and step-down diodes can ensure that under different load conditions, the output voltage can be maintained in a stable range, thereby meeting the normal operation requirements of the circuit.

[0095] When the power supply module supplies power to the isolation module, the D5V+ voltage passes through 12 DC-DC modules, outputting 12 ground-isolated 5V_iso voltage channels. Each 5V_iso voltage channel is independent and electrically isolated from ground. This isolation design effectively prevents current from looping between modules, thus avoiding potential short circuits and interference. Because each module outputs an isolated voltage, even if one module fails, it will not affect the normal operation of other modules, improving the reliability and stability of the entire circuit.

[0096] Example 2

[0097] The present application also provides a portable pyrotechnic equivalent device, wherein the equivalent device includes any one of the portable pyrotechnic equivalent systems described above.

[0098] The portable pyrotechnic equivalent device achieves the effect achieved by any one of the portable pyrotechnic equivalent systems described above. A partial schematic diagram of the portable pyrotechnic equivalent device is shown in FIG. Figure 4 As shown, its size is 240*138*15mm, and the four corners are provided with M3 size threaded holes with a depth of 10mm for connecting the upper part and the lower part of the device. The middle hollow area is used to install the 180*100mm serial port display screen 401, and the four corners of the middle hollow area are provided with M3 size threaded holes with a depth of 6.5mm for fixing the serial port display screen; Figure 5 The figure shows the lower part of the structure of the portable pyrotechnic equivalent device, where 501 is the socket for other acquisition devices, 502 is the lithium battery charging interface, and 503 is the power button. Its dimensions are 240*138*50mm, and 3.4mm through holes are set at the four corners for connecting the upper and lower parts of the device. There is an ST timing signal interface and three ignition signal interfaces DH11, DH21, and DH31 on the side, and three ignition signal interfaces DH12, DH22, and DH33 on the front, as well as an RST reset button and a V / C mode switch button. Other acquisition device interfaces, a lithium battery charging interface, and a power button are set on the back.

[0099] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system and device described above can refer to the corresponding process in the method embodiment, and will not be repeated in this application. In the several embodiments provided in this application, it should be understood that the disclosed system, device and method can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the modules is only a logical function division. There may be other division methods in actual implementation. For example, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0100] The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical units, that is, they may be located in one place or distributed across multiple network elements. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0101] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0102] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium that is executable by a processor. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, platform server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

[0103] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A portable pyrotechnic equivalent system, characterized in that: The equivalent system includes an acquisition module, an isolation module and a control module: The acquisition module is used to collect equivalent voltage signals, sampled voltage signals, and reference time signals of multiple channels of initiating explosive devices to be tested, and input the equivalent voltage signals and the sampled voltage signals to the isolation module, and output the reference time signal to the control module; The isolation module is used to electrically isolate the equivalent voltage signal and the sampled voltage signal to obtain an isolated equivalent voltage signal and an isolated sampled voltage signal, and input the isolated equivalent voltage signal and the isolated sampled voltage signal to the control module; The control module is used to calculate the status signal of the pyrotechnic product to be tested based on the isolated equivalent voltage signal and the isolated sampling voltage signal, and to control the portable pyrotechnic product equivalent system to complete the test of the pyrotechnic product to be tested in multiple test modes based on the status signal, the reference time signal and the ignition current signal corresponding to the isolated equivalent voltage signal.

2. The system according to claim 1, wherein: When the control module is used to control the portable pyrotechnic equivalent system to complete the testing of the pyrotechnic device to be tested in multiple test modes, it is specifically used to: determining whether the ignition current signal based on the reference time signal meets a preset ignition condition; If so, the test status of the pyrotechnic device to be tested is determined based on the test mode of the portable pyrotechnic device equivalent system.

3. The system according to claim 2, characterized in that When the control module is used to determine the test status of the pyrotechnic device to be tested based on the test mode of the portable pyrotechnic device equivalent system, it is specifically used to: Determining a test mode of the portable pyrotechnic device equivalent system and an ignition current signal under the corresponding mode; The test state of the initiating device to be tested is determined based on the ignition current signal and the reference time signal.

4. The system according to claim 2, wherein: When the control module is used to calculate the status signal of the initiating device to be tested based on the isolated equivalent voltage signal and the isolated sampled voltage signal, it is specifically used to: Performing a validity test based on the isolated equivalent voltage signal and the isolated sampled voltage signal to obtain a test result; The isolation equivalent voltage signal and the isolation sampling voltage signal are calculated based on the test result.

5. The system according to claim 4, characterized in that The calculation of the isolated equivalent voltage signal and the isolated sampled voltage signal based on the test result is specifically used for: If the test result is that the signal is valid, determining the calculation method corresponding to the calculation status signal; A corresponding status signal is calculated based on the corresponding calculation method, and the status signal is displayed.

6. The system according to claim 1, wherein: The control module is used to calculate the status signal of the explosive device based on the isolated equivalent voltage signal and the isolated sampled voltage signal, specifically to: determining whether the isolation equivalent voltage signal satisfies a preset error condition based on a voltage value of the isolation equivalent voltage signal; If so, the voltage value of the actual isolated equivalent voltage signal is calculated using the isolated sampled voltage signal.

7. The system according to claim 1, wherein: After the isolation module is used to electrically isolate and amplify the equivalent voltage signal and the sampled voltage signal to obtain the isolated equivalent voltage signal and the isolated sampled voltage signal, it is specifically used to: Determining a corresponding amplification processing method based on the isolated equivalent voltage signal and the isolated sampled voltage signal; The isolated equivalent voltage signal and the isolated sampling voltage signal are amplified respectively based on the amplification processing method.

8. The system according to claim 1, wherein: When the isolation module is used to electrically isolate and amplify the equivalent voltage signal and the sampled voltage signal to obtain an isolated equivalent voltage signal and an isolated sampled voltage signal, it is specifically used to: Convert the equivalent voltage signal and the sampled voltage signal by a preset conversion method; The converted equivalent voltage signal and the sampled voltage signal are processed to complete electrical isolation of the equivalent voltage signal and the sampled voltage signal.

9. The system according to claim 1, wherein: The equivalent system further includes a power supply module; When the isolation module is used to input the isolated equivalent voltage signal and the isolated sampled voltage signal to the control module, it is specifically used to: Responding to the received power supply instruction, determining the power supply object and the corresponding power supply method; Based on the power supply instruction, the power supply module is controlled to adopt the power supply method to supply power to the power supply object.

10. A portable explosive device equivalent device, characterized in that: The equivalent device includes a portable pyrotechnic equivalent system as described in any one of claims 1-9.

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