CN104535798A - Acceleration sensor batch rolling platform control system and method - Google Patents
Acceleration sensor batch rolling platform control system and method Download PDFInfo
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- CN104535798A CN104535798A CN201410833019.4A CN201410833019A CN104535798A CN 104535798 A CN104535798 A CN 104535798A CN 201410833019 A CN201410833019 A CN 201410833019A CN 104535798 A CN104535798 A CN 104535798A
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Abstract
The invention relates to a calibration correction technology of MEMS acceleration sensors, in particular to an acceleration sensor batch rolling platform control system and method. By means of the control system and method, the problems that the MEMS acceleration sensor calibration correction efficiency is low, and calibration correction is likely to be limited by a field through an existing PLC control system are solved. The acceleration sensor batch rolling platform control system comprises a PC, a power source module, a DSP controller, enhanced PWM drive modules, level conversion modules, motor drivers, a level motor, a vertical motor, a turning motor and a tilt angle sensor. The signal input end of the DSP controller is connected with the signal output end of the PC. The power supply input end of the DSP controller is connected with the power supply output end of the power source module. The signal input ends of the three enhanced PWM drive modules are connected with the signal output end of the DSP controller. The control system and method are suitable for calibration correction of the MEMS acceleration sensors.
Description
Technical field
The present invention relates to the demarcation collimation technique of MEMS acceleration transducer, specifically the control system of a kind of batch acceleration transducer rolling platform and control method.
Background technology
MEMS acceleration transducer has the series of advantages such as volume is little, lightweight, cost is low, good reliability, low in energy consumption, measurement range is large because of it, and is widely used in the fields such as automotive electronics, radio communication, biomedicine, Aero-Space, industry, agricultural.No matter MEMS acceleration transducer afterwards or before using, all needs the demarcation calibration carrying out performance parameter, to ensure MEMS acceleration transducer precision in actual applications in development.According to different demarcation alignment requirementses, MEMS acceleration transducer will carry out mechanical test, environmental test and long stability and replica test usually.Wherein, mechanical test is divided into again statics to test and dynamic test.Statics test is divided into again gravity field static tumbling test, centrifugal test etc.The static tumbling test of gravity field refers to: using acceleration of gravity at the component of MEMS acceleration transducer input shaft as input quantity, and by utilizing the multiple spot rolling program or acceleration increment linear program angularly split, demarcate the test of every static properties parameter of calibration MEMS acceleration transducer.Chinese patent ZL201310637072.2 discloses the static tumbling test device of a kind of automatic batch MEMS acceleration transducer, this device is based on PLC control system, achieve and the static tumbling test of gravity field is carried out to batch MEMS acceleration transducer, thus achieve and automatic Calibration calibration is carried out to batch MEMS acceleration transducer.But practice shows, PLC control system limit due to self structure, there is the problem that wiring is loaded down with trivial details, space hold is large, cause thus the demarcation calibration efficiency of MEMS acceleration transducer low, demarcate calibration and be subject to place and restrict.Based on this, be necessary to invent a kind of brand-new control system, cause to solve existing PLC control system the problem that the demarcation calibration efficiency of MEMS acceleration transducer is low, demarcation calibration is subject to place restriction.
Summary of the invention
The present invention causes to solve existing PLC control system the problem that the demarcation calibration efficiency of MEMS acceleration transducer is low, demarcation calibration is subject to place restriction, provides control system and the control method of a kind of batch acceleration transducer rolling platform.
The present invention adopts following technical scheme to realize: a kind of control system of batch acceleration transducer rolling platform, comprises PC, power module, dsp controller, enhancing PWM driver module, level switch module, motor driver, horizontal motor, vertically motor, upset motor, obliquity sensor; Wherein, the signal input part of dsp controller is connected with the signal output part of PC; The energization input of dsp controller is connected with the power supply output terminal of power module; The number strengthening PWM driver module is three; Three signal input parts strengthening PWM driver module are all connected with the signal output part of dsp controller; The number of level switch module is three; The signal input part of three level switch modules and three signal output parts strengthening PWM driver module connect one to one; The number of motor driver is three; The signal output part of the signal input part of three motor drivers and three level switch modules connects one to one; The signal input part of horizontal motor is connected with the signal output part of first motor driver; The signal input part of vertical motor is connected with the signal output part of second motor driver; The signal input part of upset motor is connected with the signal output part of the 3rd motor driver; The signal output part of obliquity sensor is connected with the signal input part of dsp controller.
A kind of control method (the method realizes in the control system of a kind of batch acceleration transducer rolling platform of the present invention) of batch acceleration transducer rolling platform, the method adopts following steps to realize:
1) output shaft of horizontal motor and batch acceleration transducer the are rolled horizontal addload mechanism of platform is connected; The vertical load maintainer of platform of the output shaft of vertical motor and batch acceleration transducer being rolled is connected; Rolled with batch acceleration transducer respectively by the support of the upset motor horizontal addload mechanism of platform and vertical load maintainer is connected; Obliquity sensor is installed on the automatic turning roller structure of batch acceleration transducer rolling platform; MEMS acceleration transducer batch is installed on the automatic turning roller structure of batch acceleration transducer rolling platform;
2) PC sends enabling signal to dsp controller; Dsp controller generates pwm pulse signal according to enabling signal, and pwm pulse signal is sent to first enhancing PWM driver module; First strengthens PWM driver module and pwm pulse signal is sent to first level switch module; First level switch module carries out level conversion to pwm pulse signal, and pwm pulse signal is sent to first motor driver; First motor driver drives horizontal motor according to pwm pulse signal; Horizontal motor drives upset motor to carry out tangential movement by the horizontal addload mechanism of batch acceleration transducer rolling platform, makes to overturn the roll automatic turning roller structure of platform of motor and batch acceleration transducer and combines;
3) PC sends enabling signal to dsp controller; Dsp controller generates pwm pulse signal according to enabling signal, and pwm pulse signal is sent to second enhancing PWM driver module; Second strengthens PWM driver module and pwm pulse signal is sent to second level switch module; Second level switch module carries out level conversion to pwm pulse signal, and pwm pulse signal is sent to second motor driver; Second motor driver drives vertical motor according to pwm pulse signal; Vertical motor drives upset motor, the automatic turning roller structure of batch acceleration transducer rolling platform, MEMS acceleration transducer to move straight up together by the vertical load maintainer of batch acceleration transducer rolling platform, makes to overturn motor, the automatic turning roller structure of batch acceleration transducer rolling platform, MEMS acceleration transducer arrive assigned address together;
4) PC sends enabling signal to dsp controller; Dsp controller generates pwm pulse signal according to enabling signal, and pwm pulse signal is sent to the 3rd enhancing PWM driver module; 3rd strengthens PWM driver module and pwm pulse signal is sent to the 3rd level switch module; 3rd level switch module carries out level conversion to pwm pulse signal, and pwm pulse signal is sent to the 3rd motor driver; 3rd motor driver drives upset motor according to pwm pulse signal; Upset motor drives MEMS acceleration transducer to carry out the static tumbling test of gravity field by the automatic turning roller structure of batch acceleration transducer rolling platform; In process of the test, the dip angle signal of the automatic turning roller structure of obliquity sensor collection batch acceleration transducer rolling platform, and dip angle signal is fed back to dsp controller; Dsp controller carries out closed-loop control according to the automatic turning roller structure of dip angle signal to batch acceleration transducer rolling platform.
Control system and the control method of a kind of batch acceleration transducer rolling platform of the present invention take dsp controller as core, and the control utilizing dsp controller powerful and signal handling capacity and programming efficiency, achieve and the static tumbling test of gravity field is carried out to batch MEMS acceleration transducer, thus achieve and automatic Calibration calibration is carried out to batch MEMS acceleration transducer.Compared with existing PLC control system, the control system of a kind of batch acceleration transducer rolling platform of the present invention and control method wiring is more simple, space hold is less, effectively improve the demarcation calibration efficiency of MEMS acceleration transducer thus, and the demarcation of MEMS acceleration transducer calibration is no longer restricted by place.
The present invention efficiently solves existing PLC control system and causes the problem that the demarcation calibration efficiency of MEMS acceleration transducer is low, demarcation calibration is subject to place restriction, is applicable to the demarcation calibration of MEMS acceleration transducer.
Accompanying drawing explanation
Fig. 1 is the structural representation of the control system of a kind of batch acceleration transducer rolling platform of the present invention.
Embodiment
A control system for batch acceleration transducer rolling platform, comprises PC, power module, dsp controller, enhancing PWM driver module, level switch module, motor driver, horizontal motor, vertically motor, upset motor, obliquity sensor; Wherein, the signal input part of dsp controller is connected with the signal output part of PC; The energization input of dsp controller is connected with the power supply output terminal of power module; The number strengthening PWM driver module is three; Three signal input parts strengthening PWM driver module are all connected with the signal output part of dsp controller; The number of level switch module is three; The signal input part of three level switch modules and three signal output parts strengthening PWM driver module connect one to one; The number of motor driver is three; The signal output part of the signal input part of three motor drivers and three level switch modules connects one to one; The signal input part of horizontal motor is connected with the signal output part of first motor driver; The signal input part of vertical motor is connected with the signal output part of second motor driver; The signal input part of upset motor is connected with the signal output part of the 3rd motor driver; The signal output part of obliquity sensor is connected with the signal input part of dsp controller.
A kind of control method (the method realizes in the control system of a kind of batch acceleration transducer rolling platform of the present invention) of batch acceleration transducer rolling platform, the method adopts following steps to realize:
1) output shaft of horizontal motor and batch acceleration transducer the are rolled horizontal addload mechanism of platform is connected; The vertical load maintainer of platform of the output shaft of vertical motor and batch acceleration transducer being rolled is connected; Rolled with batch acceleration transducer respectively by the support of the upset motor horizontal addload mechanism of platform and vertical load maintainer is connected; Obliquity sensor is installed on the automatic turning roller structure of batch acceleration transducer rolling platform; MEMS acceleration transducer batch is installed on the automatic turning roller structure of batch acceleration transducer rolling platform;
2) PC sends enabling signal to dsp controller; Dsp controller generates pwm pulse signal according to enabling signal, and pwm pulse signal is sent to first enhancing PWM driver module; First strengthens PWM driver module and pwm pulse signal is sent to first level switch module; First level switch module carries out level conversion to pwm pulse signal, and pwm pulse signal is sent to first motor driver; First motor driver drives horizontal motor according to pwm pulse signal; Horizontal motor drives upset motor to carry out tangential movement by the horizontal addload mechanism of batch acceleration transducer rolling platform, makes to overturn the roll automatic turning roller structure of platform of motor and batch acceleration transducer and combines;
3) PC sends enabling signal to dsp controller; Dsp controller generates pwm pulse signal according to enabling signal, and pwm pulse signal is sent to second enhancing PWM driver module; Second strengthens PWM driver module and pwm pulse signal is sent to second level switch module; Second level switch module carries out level conversion to pwm pulse signal, and pwm pulse signal is sent to second motor driver; Second motor driver drives vertical motor according to pwm pulse signal; Vertical motor drives upset motor, the automatic turning roller structure of batch acceleration transducer rolling platform, MEMS acceleration transducer to move straight up together by the vertical load maintainer of batch acceleration transducer rolling platform, makes to overturn motor, the automatic turning roller structure of batch acceleration transducer rolling platform, MEMS acceleration transducer arrive assigned address together;
4) PC sends enabling signal to dsp controller; Dsp controller generates pwm pulse signal according to enabling signal, and pwm pulse signal is sent to the 3rd enhancing PWM driver module; 3rd strengthens PWM driver module and pwm pulse signal is sent to the 3rd level switch module; 3rd level switch module carries out level conversion to pwm pulse signal, and pwm pulse signal is sent to the 3rd motor driver; 3rd motor driver drives upset motor according to pwm pulse signal; Upset motor drives MEMS acceleration transducer to carry out the static tumbling test of gravity field by the automatic turning roller structure of batch acceleration transducer rolling platform; In process of the test, the dip angle signal of the automatic turning roller structure of obliquity sensor collection batch acceleration transducer rolling platform, and dip angle signal is fed back to dsp controller; Dsp controller carries out closed-loop control according to the automatic turning roller structure of dip angle signal to batch acceleration transducer rolling platform.
During concrete enforcement, described dsp controller adopts TMS320F2000 type dsp controller; Described enhancing PWM driver module adopts 74HC245 chip; Described level switch module adopts optocoupler; Described obliquity sensor adopts high accuracy number type double-shaft tilt angle sensor.
Claims (2)
1. a control system for batch acceleration transducer rolling platform, is characterized in that: comprise PC, power module, dsp controller, enhancing PWM driver module, level switch module, motor driver, horizontal motor, vertically motor, upset motor, obliquity sensor; Wherein, the signal input part of dsp controller is connected with the signal output part of PC; The energization input of dsp controller is connected with the power supply output terminal of power module; The number strengthening PWM driver module is three; Three signal input parts strengthening PWM driver module are all connected with the signal output part of dsp controller; The number of level switch module is three; The signal input part of three level switch modules and three signal output parts strengthening PWM driver module connect one to one; The number of motor driver is three; The signal output part of the signal input part of three motor drivers and three level switch modules connects one to one; The signal input part of horizontal motor is connected with the signal output part of first motor driver; The signal input part of vertical motor is connected with the signal output part of second motor driver; The signal input part of upset motor is connected with the signal output part of the 3rd motor driver; The signal output part of obliquity sensor is connected with the signal input part of dsp controller.
2. a control method for batch acceleration transducer rolling platform, the method realizes in the control system of a kind of batch acceleration transducer rolling platform as claimed in claim 1, it is characterized in that: the method adopts following steps to realize:
1) output shaft of horizontal motor and batch acceleration transducer the are rolled horizontal addload mechanism of platform is connected; The vertical load maintainer of platform of the output shaft of vertical motor and batch acceleration transducer being rolled is connected; Rolled with batch acceleration transducer respectively by the support of the upset motor horizontal addload mechanism of platform and vertical load maintainer is connected; Obliquity sensor is installed on the automatic turning roller structure of batch acceleration transducer rolling platform; MEMS acceleration transducer batch is installed on the automatic turning roller structure of batch acceleration transducer rolling platform;
2) PC sends enabling signal to dsp controller; Dsp controller generates pwm pulse signal according to enabling signal, and pwm pulse signal is sent to first enhancing PWM driver module; First strengthens PWM driver module and pwm pulse signal is sent to first level switch module; First level switch module carries out level conversion to pwm pulse signal, and pwm pulse signal is sent to first motor driver; First motor driver drives horizontal motor according to pwm pulse signal; Horizontal motor drives upset motor to carry out tangential movement by the horizontal addload mechanism of batch acceleration transducer rolling platform, makes to overturn the roll automatic turning roller structure of platform of motor and batch acceleration transducer and combines;
3) PC sends enabling signal to dsp controller; Dsp controller generates pwm pulse signal according to enabling signal, and pwm pulse signal is sent to second enhancing PWM driver module; Second strengthens PWM driver module and pwm pulse signal is sent to second level switch module; Second level switch module carries out level conversion to pwm pulse signal, and pwm pulse signal is sent to second motor driver; Second motor driver drives vertical motor according to pwm pulse signal; Vertical motor drives upset motor, the automatic turning roller structure of batch acceleration transducer rolling platform, MEMS acceleration transducer to move straight up together by the vertical load maintainer of batch acceleration transducer rolling platform, makes to overturn motor, the automatic turning roller structure of batch acceleration transducer rolling platform, MEMS acceleration transducer arrive assigned address together;
4) PC sends enabling signal to dsp controller; Dsp controller generates pwm pulse signal according to enabling signal, and pwm pulse signal is sent to the 3rd enhancing PWM driver module; 3rd strengthens PWM driver module and pwm pulse signal is sent to the 3rd level switch module; 3rd level switch module carries out level conversion to pwm pulse signal, and pwm pulse signal is sent to the 3rd motor driver; 3rd motor driver drives upset motor according to pwm pulse signal; Upset motor drives MEMS acceleration transducer to carry out the static tumbling test of gravity field by the automatic turning roller structure of batch acceleration transducer rolling platform; In process of the test, the dip angle signal of the automatic turning roller structure of obliquity sensor collection batch acceleration transducer rolling platform, and dip angle signal is fed back to dsp controller; Dsp controller carries out closed-loop control according to the automatic turning roller structure of dip angle signal to batch acceleration transducer rolling platform.
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Cited By (1)
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| CN106681312A (en) * | 2017-03-13 | 2017-05-17 | 吉林大学 | In-the-loop test method and test platform support for electric control air suspension controller |
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| CN101865697A (en) * | 2010-05-14 | 2010-10-20 | 北京工业大学 | Minitype two-axle rotating table based on stepping motor |
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