CN109799448B - Test method for accelerometer signal acquisition board - Google Patents
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Abstract
The invention belongs to the technical field of performance verification of signal acquisition boards, and particularly relates to a test method for an accelerometer signal acquisition board. In order to solve the problems in the aspects of test power supply, test method, result recording and the like of the current accelerometer signal acquisition board, the test method provided by the invention is implemented based on test equipment, and the test equipment comprises: the device comprises a parameter setting module, a reference source network module, a power supply module, a collecting board network module and a collecting board information processing module. The technical scheme can realize the automatic test of the performance of the accelerometer signal acquisition board, the integrated power supply, the automatic control of the reference source and the automatic storage of the test result, and realize the purpose of high-efficiency optimization.
Description
Technical Field
The invention belongs to the technical field of performance verification of signal acquisition boards, and particularly relates to a test method for an accelerometer signal acquisition board.
Background
The inertial navigation device is generally composed of a gyroscope, an accelerometer, a signal acquisition circuit, a secondary power supply, a navigation computer and the like. The current signal output by the accelerometer needs to be converted into a digital signal by a conversion circuit, the implementation scheme of the current signal conversion circuit generally includes successive approximation-based A/D conversion and cumulative effect-based current-to-frequency conversion (I/F conversion for short), and no matter which conversion circuit is adopted, the accuracy and stability of weak current signal conversion directly affect the precision of the inertial navigation device, so that the performance of the accelerometer signal acquisition board needs to be comprehensively checked.
In the performance verification process of the accelerometer signal acquisition board, a common test system comprises a reference source, a four-way voltage-stabilized power supply, a counter and the accelerometer signal acquisition board, and adopts a manual or semi-automatic mode, and the defects are that: the test process is tedious, the test period is long, the manual recording and calculation are completely relied on, the consistency of the test result is poor, a large amount of manpower and material resources are consumed, and the working efficiency is low.
Disclosure of Invention
Technical problem to be solved
The technical problems to be solved by the invention are as follows: the method has the advantages of realizing the functions of automatic test in the performance verification process of the accelerometer signal acquisition board, integrated power supply of test equipment, automatic control of a reference source and automatic storage of test results.
(II) technical scheme
In order to solve the above technical problem, the present invention provides a test method for an accelerometer signal acquisition board, where the test method is implemented based on a test device, and the test device includes: the device comprises a parameter setting module 1, a reference source network module 2, a power supply module 3, an acquisition board network module 4 and an acquisition board information processing module 5;
the test method comprises the following steps:
step 1: the parameter setting module 1 receives initial parameters and starts a test, and simultaneously outputs reference control information to the reference source network module 2, power supply control information to the power supply module 3 and parameter information to the acquisition board information processing module 5;
step 2: the reference source network module 2 realizes interactive operation with a reference source according to the reference control information output by the parameter setting module 1, and simultaneously outputs a reference current signal to the acquisition board network module 4;
and step 3: the power supply module 3 outputs a power supply signal to the acquisition board network module 4 according to the power supply control information output by the parameter setting module 1, and outputs an A/D converted voltage and current signal to the acquisition board information processing module 5;
and 4, step 4: the acquisition board network module 4 performs information interaction operation with the accelerometer signal acquisition board according to the reference current signal and the power supply signal, and acquires and obtains a pulse signal;
and 5: the acquisition board information processing module 5 analyzes the parameter information from the parameter setting module 1, the voltage and current signals after the A/D conversion from the power module 3 and the pulse signals from the acquisition board network module 4, and automatically stores the analysis result into a report in a specified path folder.
The working principle of the test method is as follows:
the test equipment is powered on, relevant parameter setting is confirmed, the parameter setting module 1 receives initial parameters and then outputs three paths of information, namely, outputting reference control information to the reference source network module 2, outputting power supply control information to the power supply module 3 and outputting parameter information to the acquisition board information processing module 5;
the reference source network module 2 sends a control command to an external reference source after receiving the control information of the parameter setting module 1;
after the external reference source is started, outputting a reference current signal to the reference source network module 2, and outputting the reference current signal to the acquisition board network module 4 by the reference source network module 2;
after receiving the control information of the parameter setting module 1, the power supply module 3 outputs a power supply signal to the acquisition board network module 4, and simultaneously outputs an a/D converted voltage and current signal to the acquisition board information processing module 5;
the acquisition board network module 4 outputs the received reference current signal and power supply signal to the accelerometer signal acquisition board, receives the pulse signal output by the accelerometer signal acquisition board, and outputs the pulse signal to the acquisition board information processing module 5;
the acquisition board information processing module 5 resolves the acquired parameter information, the voltage and current signals and the pulse signals, and automatically stores a report generated by the resolving result in an appointed path folder.
Wherein the reference source network module 2 includes: a communication bus interface and a current signal interface;
the step 2 comprises the following steps:
step 21: the communication bus interface controls the operation of the reference source according to the reference control information;
step 22: the current signal interface receives a reference current signal generated by a reference source analyzed according to the reference control information of the parameter setting module 1, and transmits the reference current signal to the acquisition board network module 4.
Wherein, the acquisition board network module 4 includes: the device comprises a power supply signal interface, a digital signal interface and an analog current signal interface;
the step 4 comprises the following steps:
step 41: the power supply signal interface provides a working power supply for the accelerometer signal acquisition board according to the power supply signal;
step 42: the analog current signal interface provides a reference current signal for the accelerometer signal acquisition board;
step 43: the digital signal interface monitors the pulse signal of the accelerometer signal acquisition board.
Wherein, the accelerometer signal acquisition board is 3 sets.
Wherein the reference current signal is 0-55 mA.
The reference source network module 2 realizes information interaction with an external reference source through a standard communication interface RS-232.
Wherein, the power supply signal is +15V, -15V, +5V1, +5V2A signal.
Wherein the reference current signal is an analog signal.
Wherein the pulse signal is a digital pulse signal.
(III) advantageous effects
Compared with the prior art, the technical scheme of the invention can effectively overcome the defects of the existing method for verifying the performance of the signal acquisition board of the accelerometer, and has the following beneficial effects:
1) the working power supply required by the signal acquisition board of the output accelerometer is controlled by the built-in parameter setting module and the power supply module, and an external four-way voltage-stabilized power supply is replaced, so that the integrated power supply of the test equipment is realized;
2) the automatic control of the external reference source is realized through the reference source network module, the manual or semi-automatic operation of the reference source is avoided, and the operation is more convenient and intelligent;
3) the counter is replaced by the acquisition board information processing module, manual recording and calculation are not needed, analysis of acquired information and automatic storage of results are achieved, automatic test of comprehensive performance of the accelerometer information acquisition board is achieved, performance test can be efficiently, quickly and accurately completed, and the defects that a traditional test process is complex, the test period is long, the test result consistency is poor, the working efficiency is low and the like are overcome.
Drawings
Fig. 1 is a schematic structural diagram of a testing apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a testing apparatus provided in embodiment 1 of the present invention.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In order to solve the above technical problem, the present invention provides a test method for an accelerometer signal acquisition board, where the test method is implemented based on a test device, and the test device includes: the device comprises a parameter setting module 1, a reference source network module 2, a power supply module 3, an acquisition board network module 4 and an acquisition board information processing module 5;
as shown in fig. 1, the testing method includes the following steps:
step 1: the parameter setting module 1 receives initial parameters and starts a test, and simultaneously outputs reference control information to the reference source network module 2, power supply control information to the power supply module 3 and parameter information to the acquisition board information processing module 5;
step 2: the reference source network module 2 realizes interactive operation with a reference source according to the reference control information output by the parameter setting module 1, and simultaneously outputs a reference current signal to the acquisition board network module 4;
and step 3: the power supply module 3 outputs a power supply signal to the acquisition board network module 4 according to the power supply control information output by the parameter setting module 1, and outputs an A/D converted voltage and current signal to the acquisition board information processing module 5;
and 4, step 4: the acquisition board network module 4 performs information interaction operation with the accelerometer signal acquisition board according to the reference current signal and the power supply signal, and acquires and obtains a pulse signal;
and 5: the acquisition board information processing module 5 analyzes the parameter information from the parameter setting module 1, the voltage and current signals after the A/D conversion from the power module 3 and the pulse signals from the acquisition board network module 4, and automatically stores the analysis result into a report in a specified path folder.
The working principle of the test method is as follows:
the test equipment is powered on, relevant parameter setting is confirmed, the parameter setting module 1 receives initial parameters and then outputs three paths of information, namely, outputting reference control information to the reference source network module 2, outputting power supply control information to the power supply module 3 and outputting parameter information to the acquisition board information processing module 5;
the reference source network module 2 sends a control command to an external reference source after receiving the control information of the parameter setting module 1;
after the external reference source is started, outputting a reference current signal to the reference source network module 2, and outputting the reference current signal to the acquisition board network module 4 by the reference source network module 2;
after receiving the control information of the parameter setting module 1, the power supply module 3 outputs a power supply signal to the acquisition board network module 4, and simultaneously outputs an a/D converted voltage and current signal to the acquisition board information processing module 5;
the acquisition board network module 4 outputs the received reference current signal and power supply signal to the accelerometer signal acquisition board, receives the pulse signal output by the accelerometer signal acquisition board, and outputs the pulse signal to the acquisition board information processing module 5;
the acquisition board information processing module 5 resolves the acquired parameter information, the voltage and current signals and the pulse signals, and automatically stores a report generated by the resolving result in an appointed path folder.
Wherein the reference source network module 2 includes: a communication bus interface and a current signal interface;
the step 2 comprises the following steps:
step 21: the communication bus interface controls the operation of the reference source according to the reference control information;
step 22: the current signal interface receives a reference current signal generated by a reference source analyzed according to the reference control information of the parameter setting module 1, and transmits the reference current signal to the acquisition board network module 4.
Wherein, the acquisition board network module 4 includes: the device comprises a power supply signal interface, a digital signal interface and an analog current signal interface;
the step 4 comprises the following steps:
step 41: the power supply signal interface provides a working power supply for the accelerometer signal acquisition board according to the power supply signal;
step 42: the analog current signal interface provides a reference current signal for the accelerometer signal acquisition board;
step 43: the digital signal interface monitors the pulse signal of the accelerometer signal acquisition board.
Wherein, the accelerometer signal acquisition board is 3 sets.
Wherein the reference current signal is 0-55 mA.
The reference source network module 2 realizes information interaction with an external reference source through a standard communication interface RS-232.
Wherein, the power supply signal is +15V, -15V, +5V1, +5V2A signal.
Wherein the reference current signal is an analog signal.
Wherein the pulse signal is a digital pulse signal.
In addition, the present invention also provides a test apparatus for an accelerometer signal acquisition board, as shown in fig. 1, the test apparatus comprising: the device comprises a parameter setting module 1, a reference source network module 2, a power supply module 3, an acquisition board network module 4 and an acquisition board information processing module 5;
the parameter setting module 1 is configured to receive an initial parameter and start a test, and output reference control information to the reference source network module 2, output power control information to the power module 3, and output parameter information to the acquisition board information processing module 5;
the reference source network module 2 is configured to implement an interactive operation with a reference source according to the reference control information output by the parameter setting module 1, and output a reference current signal to the acquisition board network module 4;
the power supply module 3 is configured to output a power supply signal to the acquisition board network module 4 according to the power supply control information output by the parameter setting module 1, and output an a/D converted voltage and current signal to the acquisition board information processing module 5;
the acquisition board network module 4 is used for performing information interaction operation with the accelerometer signal acquisition board according to the reference current signal and the power supply signal, and acquiring a pulse signal;
the acquisition board information processing module 5 is configured to analyze the parameter information from the parameter setting module 1, the voltage-current signal after the a/D conversion from the power module 3, and the pulse signal from the acquisition board network module 4, and automatically store an analysis result generation report in an assigned path folder.
The working principle of the test equipment is as follows:
the test equipment is powered on, relevant parameter setting is confirmed, the parameter setting module 1 receives initial parameters and then outputs three paths of information, namely, outputting reference control information to the reference source network module 2, outputting power supply control information to the power supply module 3 and outputting parameter information to the acquisition board information processing module 5;
the reference source network module 2 sends a control command to an external reference source after receiving the control information of the parameter setting module 1;
after the external reference source is started, outputting a reference current signal to the reference source network module 2, and outputting the reference current signal to the acquisition board network module 4 by the reference source network module 2;
after receiving the control information of the parameter setting module 1, the power supply module 3 outputs a power supply signal to the acquisition board network module 4, and simultaneously outputs an a/D converted voltage and current signal to the acquisition board information processing module 5;
the acquisition board network module 4 outputs the received reference current signal and power supply signal to the accelerometer signal acquisition board, receives the pulse signal output by the accelerometer signal acquisition board, and outputs the pulse signal to the acquisition board information processing module 5;
the acquisition board information processing module 5 resolves the acquired parameter information, the voltage and current signals and the pulse signals, and automatically stores a report generated by the resolving result in an appointed path folder.
Wherein the reference source network module 2 includes:
a communication bus interface for performing operation control on a reference source according to the reference control information;
and the current signal interface is used for receiving a reference current signal generated by a reference source analyzed according to the reference control information of the parameter setting module 1 and transmitting the reference current signal to the acquisition board network module 4.
Wherein, the acquisition board network module 4 includes:
the power supply signal interface is used for providing a working power supply for the accelerometer signal acquisition board according to the power supply signal;
the digital signal interface is used for monitoring the pulse signal of the accelerometer signal acquisition board;
and the analog current signal interface is used for providing a reference current signal for the accelerometer signal acquisition board.
Wherein, the accelerometer signal acquisition board is 3 sets.
Example 1
This example specifically describes a preferred embodiment of the present invention.
As shown in fig. 2, the test equipment load of the accelerometer signal acquisition board according to the preferred embodiment is three sets of accelerometer signal acquisition boards, and the specific implementation process is described as follows:
a. the test equipment is powered on, relevant parameter setting is confirmed, the parameter setting module 1 receives the initial parameters and then outputs three paths of information, namely, outputting reference control information to the reference source network module 2, outputting power supply control information to the power supply module 3 and outputting parameter information to the acquisition board information processing module 5;
b. after the reference source network module 2 receives the reference control information of the parameter setting module 1, the information interaction with the external reference source is realized through a standard communication interface RS-232 communication interface to send out a control command; after the external reference source is started, a reference current signal of 0-55 mA is sent to the reference source network module 2 through the current signal interface and is output to the acquisition board network module 4;
c. after receiving the power control information of the parameter setting module 1, the power module 3 outputs power signals +15V, -15V, +5V1, +5V2A to the acquisition board network module 4, and outputs voltage and current signals after a/D conversion to the acquisition board information processing module 5;
d. the acquisition board network module 4 comprises an analog current signal interface which is used for receiving the reference current signal of the reference source network module 2 and transmitting the reference current signal to the three sets of accelerometer signal acquisition boards; the power supply signal interface is used for providing the power supply signal output by the power supply module 3 to the three sets of accelerometer signal acquisition boards as a working power supply; the digital signal interface is used for receiving pulse signals output by the three sets of accelerometer signal acquisition boards and outputting the pulse signals to the acquisition board information processing module 5;
e. the acquisition board information processing module 5 resolves the acquired parameter information of the parameter setting module 1, the voltage and current signals after A/D conversion in the power module 3 and the pulse signals in the acquisition board network module 4, and automatically stores a report generated by the resolved result in a specified path folder.
The load in this embodiment is three sets of accelerometer signal acquisition boards, but is not limited to three sets of accelerometer signal acquisition boards in practical application.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (3)
1. A test method for an accelerometer signal acquisition board, the test method being implemented on the basis of a test apparatus comprising: the device comprises a parameter setting module (1), a reference source network module (2), a power supply module (3), an acquisition board network module (4) and an acquisition board information processing module (5);
the test method comprises the following steps:
step 1: the parameter setting module (1) receives initial parameters and starts a test, and meanwhile outputs reference control information to the reference source network module (2), power supply control information to the power supply module (3) and parameter information to the acquisition board information processing module (5);
step 2: the reference source network module (2) realizes interactive operation with a reference source according to the reference control information output by the parameter setting module (1), and outputs a reference current signal to the acquisition board network module (4);
and step 3: the power supply module (3) outputs a power supply signal to the acquisition board network module (4) according to the power supply control information output by the parameter setting module (1), and outputs an A/D converted voltage and current signal to the acquisition board information processing module (5);
and 4, step 4: the acquisition board network module (4) performs information interactive operation with the accelerometer signal acquisition board according to the reference current signal and the power supply signal, and acquires and obtains a pulse signal;
and 5: the acquisition board information processing module (5) analyzes the parameter information from the parameter setting module (1), the voltage and current signals after A/D conversion from the power supply module (3) and the pulse signals from the acquisition board network module (4), and automatically stores the analysis result into a report in a specified path folder;
the working principle of the test method is as follows:
the test equipment is powered on, relevant parameter setting is confirmed, the parameter setting module (1) outputs three paths of information after receiving initial parameters, namely, outputting reference control information to the reference source network module (2), outputting power supply control information to the power supply module (3) and outputting parameter information to the acquisition board information processing module (5);
the reference source network module (2) sends a control command to an external reference source after receiving the control information of the parameter setting module (1);
after the external reference source is started, outputting a reference current signal to the reference source network module (2), and outputting the reference current signal to the acquisition board network module (4) by the reference source network module (2);
after receiving the control information of the parameter setting module (1), the power supply module (3) outputs a power supply signal to the acquisition board network module (4), and simultaneously outputs an A/D converted voltage and current signal to the acquisition board information processing module (5);
the acquisition board network module (4) outputs the received reference current signal and the power supply signal to the accelerometer signal acquisition board, receives the pulse signal output by the accelerometer signal acquisition board, and outputs the pulse signal to the acquisition board information processing module (5);
the acquisition board information processing module (5) resolves the acquired parameter information, voltage and current signals and pulse signals, and automatically stores a report generated by a resolving result in an appointed path folder;
the reference source network module (2) comprises: a communication bus interface and a current signal interface;
the step 2 comprises the following steps:
step 21: the communication bus interface controls the operation of the reference source according to the reference control information;
step 22: the current signal interface receives a reference current signal generated by a reference source analyzed according to the reference control information of the parameter setting module (1) and transmits the reference current signal to the acquisition board network module (4);
the acquisition board network module (4) comprises: the device comprises a power supply signal interface, a digital signal interface and an analog current signal interface;
the step 4 comprises the following steps:
step 41: the power supply signal interface provides a working power supply for the accelerometer signal acquisition board according to the power supply signal;
step 42: the analog current signal interface provides a reference current signal for the accelerometer signal acquisition board;
step 43: the digital signal interface monitors pulse signals of the accelerometer signal acquisition board;
the number of the accelerometer signal acquisition plates is 3;
the reference current signal is 0-55 mA;
the reference source network module (2) realizes information interaction with an external reference source through a standard communication interface RS-232;
the power supply signals are +15V, -15V, +5V1A and +5V2A signals.
2. The test method for an accelerometer signal acquisition board of claim 1, wherein the reference current signal is an analog signal.
3. The test method for an accelerometer signal acquisition board of claim 1, wherein the pulse signal is a digital pulse signal.
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