CN111579900A - Method and device for testing performance of shaft-angle conversion module - Google Patents
Method and device for testing performance of shaft-angle conversion module Download PDFInfo
- Publication number
- CN111579900A CN111579900A CN202010389547.0A CN202010389547A CN111579900A CN 111579900 A CN111579900 A CN 111579900A CN 202010389547 A CN202010389547 A CN 202010389547A CN 111579900 A CN111579900 A CN 111579900A
- Authority
- CN
- China
- Prior art keywords
- module
- angle value
- angle
- sac
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
The invention provides a method and a device for testing the performance of an axial angle conversion module, wherein the method comprises the following steps: after the SAC module to be tested is connected in a plugging and unplugging manner, acquiring an angle value input by a user, and converting the angle value into an angle value digital quantity; receiving parallel 14-bit angle value digital quantity processed by the GD32MCU through a DSC module, and generating an axis angle signal analog quantity; and the SAC module to be tested receives the shaft angle signal analog quantity of the DSC module, generates a linear corresponding direct current feedback signal, and after the direct current feedback signal is processed by the voltage follower and the AD conversion chip, the direct current feedback signal is resolved by the GD32MCU and outputs an actual angle value and an error value. The scheme solves the problem of high chip cost in the existing performance test of the SAC module, can effectively reduce the chip cost, realizes the accurate test of the performance of the SAC module, and simultaneously avoids the risk of blocking an imported chip.
Description
Technical Field
The invention relates to the field of shaft angle conversion, in particular to a method and a device for testing the performance of a shaft angle conversion module.
Background
The SAC module, namely the shaft angle conversion module, is widely applied to systems with angle conversion behaviors, such as artillery guns, radars, industrial machine tools and the like, and the precision of shaft angle conversion can greatly influence the control precision of equipment, so that the test of performance indexes, such as the precision of the SAC module, and the like, has important significance in practical application.
However, most of the SAC module automatic test systems or devices currently used in China adopt imported FPGA chips, which are expensive and risk of chip blocking.
Therefore, it is necessary to provide a method and an apparatus for testing SAC performance based on a home-made chip.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and an apparatus for testing performance of an axial-angular conversion module, so as to solve the problems that a SAC module testing apparatus or method based on chips such as an FPGA is high in cost and faces a risk of power outage.
In a first aspect of the embodiments of the present invention, a method for testing performance of an axial angle conversion module is provided, including:
after the SAC module to be tested is connected in a plugging and unplugging manner, acquiring an angle value input by a user, and converting the angle value into an angle value digital quantity;
receiving parallel 14-bit angle value digital quantity processed by the GD32MCU through a DSC module, and generating an axis angle signal analog quantity;
and the SAC module to be tested receives the shaft angle signal analog quantity of the DSC module, generates a linear corresponding direct current feedback signal, and after the direct current feedback signal is processed by the voltage follower and the AD conversion chip, the direct current feedback signal is resolved by the GD32MCU and outputs an actual angle value and an error value.
In a second aspect of the embodiments of the present invention, there is provided an axial angle conversion module performance testing apparatus, including:
the input module is used for acquiring an angle value input by a user after the SAC module to be tested is connected in a plugging and unplugging manner, and converting the angle value into an angle value digital quantity;
the DSC module is used for receiving the parallel 14-bit angle value digital quantity processed by the GD32MCU and generating an axial angle signal analog quantity;
the SAC module is used for receiving the shaft angle signal analog quantity of the DSC module and generating a linear corresponding direct current feedback signal;
and the resolving output module is used for resolving and outputting an actual angle value and an error value through the GD32MCU after the direct current feedback signal is processed by the voltage follower and the AD conversion chip.
In the embodiment of the invention, the angle value is converted into the angle value digital quantity by acquiring the angle value input by a user; receiving parallel 14-bit angle value digital quantity processed by the GD32MCU through a DSC module, and generating an axis angle signal analog quantity; and the SAC module to be tested receives the shaft angle signal analog quantity of the DSC module, generates a linear corresponding direct current feedback signal, and after the direct current feedback signal is processed by the voltage follower and the AD conversion chip, the direct current feedback signal is resolved by the GD32MCU and outputs an actual angle value and an error value. The cost of the chip can be reduced, the accurate measurement of the performance of the SAC module is realized, the problems that the SAC module based on chips such as an FPGA (field programmable gate array) is high in test cost and faces the risk of supply interruption are solved, and the method has higher practical application value.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for testing performance of an axis angle conversion module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a performance testing apparatus for an axial angle conversion module according to an embodiment of the present invention;
fig. 3 is another schematic structural diagram of a performance testing apparatus for an axial angle conversion module according to an embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons skilled in the art without any inventive work shall fall within the protection scope of the present invention, and the principle and features of the present invention shall be described below with reference to the accompanying drawings.
The terms "comprises" and "comprising," when used in this specification and claims, and in the accompanying drawings and figures, are intended to cover non-exclusive inclusions, such that a process, method or system, or apparatus that comprises a list of steps or elements is not limited to the listed steps or elements.
Referring to fig. 1, fig. 1 is a schematic flow chart of a performance testing method of an axial angle conversion module according to an embodiment of the present invention, including:
s101, after the SAC module to be tested is connected in a plugging and unplugging mode, obtaining an angle value input by a user, and converting the angle value into an angle value digital quantity;
the SAC module, namely an axial angle-direct current voltage converter, is generally applied to angular position control systems such as a fire control system, antenna tracking, machine tool control and the like to perform axial angle adjustment control. The SAC module to be tested is connected into the test system or the test equipment, and the performance test of the SAC module is realized according to the output result.
The angle value is input by a user during testing, such as an angle value input by an external device, a touch screen mode and the like, the range of the angle value is 0-359.9 degrees, and the controller converts the angle value into a digital value. Specifically, the formula calculates the angle value digital quantity: da (a/359.99) 16384; where Da represents a numerical angle value and a represents an input angle value.
S102, receiving parallel 14-bit angle value digital quantity processed by the GD32MCU through a DSC module, and generating an axial angle signal analog quantity;
the DSC (digital Signal control) module is a microcontroller capable of performing digital Signal processing, and the DSC module may include a synchrotron, a resolver, and the like. The DSC module can receive the digital quantity angle value processed by the MCU and the excitation signal generated by the TSA excitation power supply to generate an axis angle signal analog quantity.
Specifically, based on an excitation signal output by the TSA, an analog signal in the form of a synchro or a rotary transformer is generated, and the SAC module outputs a feedback voltage according to the analog signal; the TSA excitation power supply generates a reference voltage shared by the DSC module and the SAC module.
The GD32MCU is a GD32 series single chip microcomputer and is a domestic ARM Cortex-M3 and Cortex-M4 kernel general MCU product. The SAC module performance test realized based on the GD32MCU can effectively reduce the chip cost.
S103, the SAC module to be tested receives the axial angle signal analog quantity of the DSC module, generates a linear corresponding direct current feedback signal, and after the direct current feedback signal is processed by the voltage follower and the AD conversion chip, the direct current feedback signal is resolved by the GD32MCU and outputs an actual angle value and an error value.
The SAC module to be tested generates a direct current feedback signal according to the shaft angle signal analog quantity output by the DSC module, and after the direct current feedback signal enters the isolation of the voltage follower and is converted by the AD converter (the analog signal is converted into the digital signal), the MCU can acquire the direct current feedback voltage. The actual angle value and the error value can be output through the comparison and calculation of the actual output voltage and the feedback voltage, and then the error of the SAC module is determined.
The method provided by the embodiment of the invention is based on a domestic control chip platform, solves the difficulty that an imported high-end chip is blocked, greatly reduces the hardware cost at the same time, and can visually display an output result. The excitation power supply and the DSC module are both pluggable compatible replacement forms, and the excitation power supply and the DSC module can be flexibly replaced according to different used parameters and requirements of the SAC module.
In one embodiment, as shown in fig. 2, a schematic structural diagram of an apparatus for testing performance of an axial angle conversion module is provided, including:
FTF _ LCD, GD32F450 chip, DSC module, TSA excitation power supply, SAC shaft angle conversion module, voltage follower, AD976ARZRL analog-to-digital conversion chip, LH40_10A15 input power supply, RS232 interface and USB interface.
Before a performance test is carried out on the SAC axial angle conversion module, an excitation signal output by a TSA excitation power supply of the device needs to be ensured to meet the voltage requirement of the SAC module, and meanwhile, before the SAC module is plugged and pulled, the device is in a power-off state.
Inputting any angle value between 0 degree and 359.9 degrees through a human-computer interaction program of the TFT _ LCD, and after receiving the input angle value, the controller according to the formula: the digital quantity angle input is (input angle value/359.99) × 16384, the digital quantity angle value is calculated, the 14-bit digital quantity angle value is output to a DSC module, three-wire/four-wire analog signals S1, S2, S3 and S4 in the form of a self-angle machine or a rotary transformer are generated according to an excitation signal output by a TSA excitation power supply, a SAC module outputs-10V to +10V feedback voltage according to the three-wire/four-wire analog signals, the feedback voltage is output to a 16-bit AD sampling chip through a voltage follower built by AD8512, the 16-bit digital quantity is output to a GD32F450 for resolving analysis, and the actual angle value, the error value and the like are output on a liquid crystal screen. Based on onboard RS232 and a USB communication interface, the data can be transmitted and stored in real time by the upper computer. The device is supplied with power by the Jinsheng Yang AC input power module LH40_10A15 and the power conversion chip.
The device is based on a domestic chip, any angle value is input to the SAC module through a human-computer interaction interface, the voltage analog quantity fed back by the SAC module can be utilized, the actual angle rotation value of the module is calculated according to a formula, the performance index of the SAC module is evaluated, the chip cost can be effectively reduced, the human-computer interaction interface is used for keying in the input value, the output result can be visually displayed, and the device is more flexible and convenient.
Fig. 3 is another schematic structural diagram of an apparatus for measuring performance of an axial angle conversion module according to an embodiment of the present invention, where the apparatus includes:
the input module 310 is used for acquiring an angle value input by a user after the SAC module to be tested is connected in a plugging manner, and converting the angle value into an angle value digital quantity;
specifically, the obtaining of the angle value input by the user and the converting of the angle value into an angle value digital quantity specifically include:
calculating the angle value digital quantity according to the formula: da (a/359.99) 16384;
wherein Da represents the angle value of the digital quantity, a represents the input angle value, and a is more than or equal to 0 degrees and less than or equal to 359.9 degrees.
The DSC module 320 is used for receiving the parallel 14-bit angle value digital quantity processed by the GD32MCU and generating an axial angle signal analog quantity;
the SAC module 330 is configured to receive the shaft angle signal analog quantity of the DSC module and generate a linear corresponding direct current feedback signal;
specifically, based on an excitation signal output by the TSA excitation power supply, the DSC module generates an analog signal in the form of a synchro or a rotary transformer, and the SAC module outputs a direct-current feedback voltage according to the analog signal;
the TSA excitation power supply generates a reference voltage shared by the DSC module and the SAC module.
And the resolving output module 320 is used for resolving and outputting an actual angle value and an error value through the GD32MCU after the direct current feedback signal is processed by the voltage follower and the AD conversion chip.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. A method for testing the performance of an axial angle conversion module is characterized by comprising the following steps:
after the SAC module to be tested is connected in a plugging and unplugging manner, acquiring an angle value input by a user, and converting the angle value into an angle value digital quantity;
receiving parallel 14-bit angle value digital quantity processed by the GD32MCU through a DSC module, and generating an axis angle signal analog quantity;
and the SAC module to be tested receives the shaft angle signal analog quantity of the DSC module, generates a linear corresponding direct current feedback signal, and after the direct current feedback signal is processed by the voltage follower and the AD conversion chip, the direct current feedback signal is resolved by the GD32MCU and outputs an actual angle value and an error value.
2. The method according to claim 1, wherein the obtaining the angle value input by the user and the converting the angle value into an angle value numerical quantity specifically comprises:
calculating the angle value digital quantity according to the formula:
Da＝(a/359.99)*16384；
wherein Da represents the angle value of the digital quantity, a represents the input angle value, and a is more than or equal to 0 degrees and less than or equal to 359.9 degrees.
3. The method of claim 1, wherein the SAC module under test receives an axis angle signal analog quantity of a DSC module, and generating a linearly corresponding dc feedback signal comprises:
based on an excitation signal output by the TSA excitation power supply, the DSC module generates an analog signal in the form of a synchro or a rotary transformer, and the SAC module outputs a direct-current feedback voltage according to the analog signal;
the TSA excitation power supply generates a reference voltage shared by the DSC module and the SAC module.
4. The utility model provides an axial angle conversion module capability test device which characterized in that includes:
the input module is used for acquiring an angle value input by a user after the SAC module to be tested is connected in a plugging and unplugging manner, and converting the angle value into an angle value digital quantity;
the DSC module is used for receiving the parallel 14-bit angle value digital quantity processed by the GD32MCU and generating an axial angle signal analog quantity;
the SAC module is used for receiving the shaft angle signal analog quantity of the DSC module and generating a linear corresponding direct current feedback signal;
and the resolving output module is used for resolving and outputting an actual angle value and an error value through the GD32MCU after the direct current feedback signal is processed by the voltage follower and the AD conversion chip.
5. The apparatus according to claim 4, wherein the obtaining of the angle value input by the user and the converting of the angle value into the angle value numerical quantity are specifically:
calculating the angle value digital quantity according to the formula: da (a/359.99) 16384;
wherein Da represents the angle value of the digital quantity, a represents the input angle value, and a is more than or equal to 0 degrees and less than or equal to 359.9 degrees.
6. The apparatus of claim 4, wherein the receiving the shaft angle signal analog quantity of the DSC module and generating the linearly corresponding DC feedback signal comprises:
based on an excitation signal output by the TSA excitation power supply, the DSC module generates an analog signal in the form of a synchro or a rotary transformer, and the SAC module outputs a direct-current feedback voltage according to the analog signal;
the TSA excitation power supply generates a reference voltage shared by the DSC module and the SAC module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010389547.0A CN111579900A (en) | 2020-05-10 | 2020-05-10 | Method and device for testing performance of shaft-angle conversion module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010389547.0A CN111579900A (en) | 2020-05-10 | 2020-05-10 | Method and device for testing performance of shaft-angle conversion module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111579900A true CN111579900A (en) | 2020-08-25 |
Family
ID=72126494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010389547.0A Pending CN111579900A (en) | 2020-05-10 | 2020-05-10 | Method and device for testing performance of shaft-angle conversion module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111579900A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114530301A (en) * | 2022-02-24 | 2022-05-24 | 成都信息工程大学 | Full-angle infinite rotation single potentiometer and high-precision wind speed detection method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204330001U (en) * | 2015-01-07 | 2015-05-13 | 中船重工（武汉）凌久电子有限责任公司 | A kind of angle to digital conversion Module Automatic Test System based on LAN (Local Area Network) |
| CN105716520A (en) * | 2016-04-12 | 2016-06-29 | 中国人民解放军武汉军械士官学校 | Axial angle measurement and control system and method for axial angle sensor |
| CN110609186A (en) * | 2019-09-16 | 2019-12-24 | 连云港杰瑞电子有限公司 | Automatic testing system and method for shaft angle-digital module parameters |
-
2020
- 2020-05-10 CN CN202010389547.0A patent/CN111579900A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204330001U (en) * | 2015-01-07 | 2015-05-13 | 中船重工（武汉）凌久电子有限责任公司 | A kind of angle to digital conversion Module Automatic Test System based on LAN (Local Area Network) |
| CN105716520A (en) * | 2016-04-12 | 2016-06-29 | 中国人民解放军武汉军械士官学校 | Axial angle measurement and control system and method for axial angle sensor |
| CN110609186A (en) * | 2019-09-16 | 2019-12-24 | 连云港杰瑞电子有限公司 | Automatic testing system and method for shaft angle-digital module parameters |
Non-Patent Citations (3)
| Title |
|---|
| 向虎 等: "轴角数字转换测试的误差分析与数据处理", 《空军雷达学院学报》 * |
| 杨波: "轴角转换电路精度误差的判定与分析", 《电子测量技术》 * |
| 王永: "《与中关村同行 2013》", 31 May 2014 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114530301A (en) * | 2022-02-24 | 2022-05-24 | 成都信息工程大学 | Full-angle infinite rotation single potentiometer and high-precision wind speed detection method |
| CN114530301B (en) * | 2022-02-24 | 2023-08-08 | 成都信息工程大学 | Full-angle infinite rotation single potentiometer and high-precision wind speed detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101709983B (en) | On-line actual error compensation system of sine and cosine encoder | |
| CN102749549A (en) | Intelligent checking system for substation alternating current voltage secondary circuit | |
| CN109683119A (en) | Electric energy measuring equipment automatic calibrating method, computer equipment and storage medium | |
| CN106483489B (en) | Calibrating device of mutual-inductor check gauge based on detection feedback | |
| CN102129058A (en) | Direct-current voltage divider calibration device for direct-current power transmission system | |
| CN111579900A (en) | Method and device for testing performance of shaft-angle conversion module | |
| Adamo et al. | Channel characterization of an open source energy meter | |
| CN105680860A (en) | Circuit and method for improving analog-digital conversion precision of single chip computer | |
| CN106992782B (en) | Timing synchronization DAC static parameter testing method | |
| CN110135071B (en) | Method and system for detecting reliability of single-axis fiber-optic gyroscope based on multi-element performance degradation | |
| CN115308662A (en) | Calibration device, system, method, equipment and medium for analog input channel | |
| CN103532550A (en) | Current frequency converter test method based on virtual instrument | |
| Tingting et al. | Development of multi-channel automatic digital multimeter calibration device | |
| CN103926550A (en) | Device and method for checking electric transformer based on virtual instrument | |
| CN103743971A (en) | Testing technology for rotary transformer signal calculating module | |
| CN103954924B (en) | The measurement mechanism of electrical measuring instrument error in dipping and measuring method during frequency jitter | |
| CN213875999U (en) | Digital direct current electric energy meter calibration device | |
| CN109855661A (en) | A kind of incremental encoder signal processing method and system | |
| CN109308006A (en) | A kind of position marker Split rotary transformer precision compensation system and method | |
| Pullman et al. | Instrumentation for testing and control of laboratory model turbogenerator | |
| CN210803699U (en) | Detection device for mutual inductor online error detector | |
| CN210835715U (en) | Calibration detection device of follow-up control system | |
| CN218995519U (en) | Rapid detection equipment for sonar transducer matrix resistance-capacitance | |
| CN215769467U (en) | Pump truck controller hardware-in-loop test system | |
| CN204228773U (en) | A kind of conditioning circuit for rotary transformer for testing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200825 |
|
| RJ01 | Rejection of invention patent application after publication |