An angular acceleration sensor self-checking method, system, terminal and medium

Abstract

The present application relates to the technical field of angular acceleration sensor, in particular to an angular acceleration sensor self-checking method, system, terminal and medium, which is used before the formal work of the angular acceleration sensor each time during the ground self-checking, and the ground self-checking can determine whether the angular acceleration sensor works normally. The angular acceleration sensor structure part and the circuit part can be comprehensively self-checked, the self-checking coverage of the angular acceleration sensor is greatly improved, the angular acceleration sensor self-checking method circuit structure is simple, easy to realize, has high reliability, and has good self-checking effect. The testability, fault diagnosis capability and maintainability of the product can be improved.

Description

Technical Field

[0001] This invention relates to the field of angular acceleration sensor technology, specifically to an angular acceleration sensor self-testing method, system, terminal, and medium. Background Technology

[0002] With the widespread application of advanced technologies in the military field, the future development trend is for aircraft or missiles to operate in all attitudes and with high maneuverability.

[0003] To ensure the safety and reliability of the flight control system, flight control sensors must possess pre-flight self-testing capabilities and report their operational status to the flight control computer. Pre-flight ground self-testing assesses whether the products are functioning correctly, providing accurate signals to the flight control system. Real-time in-flight self-monitoring evaluates the products' operational status in real time, providing a basis for the flight control system's decision-making.

[0004] Currently available angular acceleration sensors do not have self-detection capabilities, so adding self-detection functionality to angular acceleration sensors is of great significance. Summary of the Invention

[0005] To address the above problems, this invention provides a self-testing method, system, terminal, and medium for an angular acceleration sensor.

[0006] The adopted technical solution is an angular acceleration sensor self-testing method, including:

[0007] The angular accelerometer is zeroed to obtain its reference parameter value A after excitation is applied;

[0008] After zeroing, the angle acceleration sensor is installed into the flight control system;

[0009] Excitation is applied to the angular acceleration sensor installed in the flight control system, and the parameter value A1 after excitation is applied is collected;

[0010] Compare the amplitude of parameter value A1 after applying excitation with the amplitude of reference parameter value A to determine whether it is working properly and complete the self-test.

[0011] Furthermore, the excitation applied to the angular acceleration sensor is a constant voltage signal.

[0012] Optional, the constant voltage signal is +15V.

[0013] Furthermore, the reference parameter value A and the parameter value A1 acquired after the excitation is applied are the voltage values ​​output by the angular acceleration sensor.

[0014] The present invention also provides an angular acceleration sensor self-testing system, including an angular acceleration sensor, an external excitation module, a demodulation and filtering module, a power amplifier module, and an acquisition module;

[0015] The angular acceleration sensor includes a balance pendulum, a signal generator, and a torque generator;

[0016] The external excitation module applies excitation to the torque converter of the angular acceleration sensor through the power amplifier module;

[0017] The acquisition module acquires the parameter values ​​output by the torque converter;

[0018] The demodulation and filtering module acquires the signal emitted by the signal transmitter and performs correction.

[0019] This invention also provides a matching angular acceleration sensor self-testing device, comprising:

[0020] Memory, used to store computer programs;

[0021] A processor is used to execute computer programs stored in memory to enable a device to perform a self-test method for an angular acceleration sensor.

[0022] To achieve the above and other related objectives, the present invention also provides a matching computer storage medium, wherein the computer storage medium stores a computer program that can drive an angular acceleration sensor self-testing system, and when the computer program is executed by a processor, it can implement an angular acceleration sensor self-testing method.

[0023] The beneficial effects of the present invention include at least one of the following;

[0024] 1. The technical solution provided by this invention is used for ground self-testing before each formal operation of the angular acceleration sensor. The ground self-testing can determine whether the angular acceleration sensor is working properly.

[0025] 2. It can perform a comprehensive self-test on the structural and circuit components of the angular acceleration sensor, greatly improving the self-test coverage of the angular acceleration sensor. Attached Figure Description

[0026] Figure 1 This is a flowchart of a self-testing method for an angular acceleration sensor;

[0027] Figure 2 This is a block diagram of an angular acceleration sensor self-testing system;

[0028] Figure 3 This is a self-test circuit diagram for an angular acceleration sensor. Detailed Implementation

[0029] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0030] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0031] like Figure 1 As shown, a self-testing method for an angular acceleration sensor includes the following steps:

[0032] S1000. Zero the angular accelerometer to obtain its reference parameter value A after applying excitation;

[0033] S2000. Install the zeroed-out angle acceleration sensor into the flight control system;

[0034] S3000. Apply excitation to the angular acceleration sensor installed in the flight control system and collect the parameter value A1 after applying the excitation;

[0035] S4000. Compare the amplitude of parameter value A1 after applying excitation with the amplitude of reference parameter value A to determine whether it is working properly and complete the self-test.

[0036] in,

[0037] The excitation applied to the angular acceleration sensor is a constant voltage signal:

[0038] The constant voltage signal is +15V;

[0039] The reference parameter value A and the acquired parameter value A1 after the excitation is applied are the voltage values ​​output by the angular acceleration sensor;

[0040] The purpose of this design is to address the lack of self-testing functionality in angular acceleration sensors through hardware circuitry. By applying an external excitation to the zeroing reference of the angular acceleration sensor, the product achieves ground-based self-testing.

[0041] External excitation is applied to the high and low ends of the torque converter of the angular acceleration sensor to achieve ground self-testing of the product, which can determine whether the product is operating normally. This improves the product's testability, fault diagnosis capability, and maintainability, while minimizing the number of maintenance operations.

[0042] When conducting a self-check, such as Figure 2 As shown, the working principle and characteristics of the circuit of the angular acceleration sensor are compared when there is no angular acceleration input and when there is angular acceleration input. The difference between the zeroing reference and the signal output after demodulation and filtering is used to determine whether there is an abnormality when there is no angular acceleration input and when there is angular acceleration input.

[0043] Without angular acceleration input, a voltage signal is applied to the zero-adjustment reference, changing the difference between the zero-adjustment reference and the signal output after demodulation and filtering. This simulates the situation with an angular acceleration signal input, and the signal is then processed by subsequent circuitry before being output. If the expected voltage signal is output, the angular acceleration sensor is working properly; otherwise, the angular acceleration sensor has some kind of fault.

[0044] This embodiment also provides an angular acceleration sensor self-testing device, characterized in that it includes:

[0045] Memory, used to store computer programs;

[0046] A processor is used to execute computer programs stored in memory to enable a device to perform a self-test method for an angular acceleration sensor.

[0047] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0048] The memory can be an internal storage unit or an external storage device, such as a plug-in hard drive, a smart media card (SMC), a secure digital card (SD), or a flash card. Furthermore, the memory may include both internal storage units and external storage devices. The memory is used to store the computer program and other programs and data, and can also be used to temporarily store data that has been output or will be output.

[0049] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0050] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0051] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0052] In the embodiments provided by this invention, it should be understood that the disclosed devices / terminal equipment and methods can be implemented in other ways. For example, the device / terminal equipment embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0053] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0054] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0055] If the integrated module / unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc.

[0056] In this embodiment, a computer storage medium is also provided, which stores a computer program. The computer storage medium can be one of magnetic random access memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, flash memory, magnetic surface memory, and optical disk. It can also be various devices that include one or any combination of the above-mentioned memories, such as mobile phones, computers, tablet devices, etc. The computer program can drive the angular acceleration sensor self-test system, and when the computer program is executed by the processor, it can implement the angular acceleration sensor self-test method.

[0057] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-testing method for an angular acceleration sensor, characterized in that, Includes the following steps: Zero the angular acceleration sensor, apply a constant voltage excitation to the torque converter of the angular acceleration sensor, and obtain the reference parameter value A of the sensor output voltage; After zeroing, the angle acceleration sensor is installed into the flight control system; Apply the same constant voltage excitation to the torque generator of the angular acceleration sensor installed in the flight control system, and collect the parameter value A1 of the output voltage; By comparing the amplitude of the output voltage parameter value A1 with the reference parameter value A, it is determined whether the sensor is working properly and the self-test is completed. The self-testing system used in the self-testing method includes: an angular acceleration sensor, an external excitation module, a demodulation and filtering module, a power amplifier module, and a data acquisition module; the angular acceleration sensor includes a balance pendulum, a signal transducer, and a torque converter; the external excitation module applies a constant voltage excitation to the torque converter of the angular acceleration sensor through the power amplifier module; the data acquisition module acquires the voltage parameter values ​​output by the torque converter; and the demodulation and filtering module acquires and corrects the signal emitted by the signal transducer.

2. The method according to claim 1, characterized in that: The constant voltage excitation is a constant voltage signal, which is +15V.

3. A self-testing device for an angular acceleration sensor, characterized in that, include: Memory, used to store computer programs; A processor for executing a computer program stored in the memory to cause the device to perform the method according to any one of claims 1-2.

4. A computer storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the method described in any one of claims 1-2.

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