CN105425676A - Embedded photoelectric signal processing and control system and usage method thereof - Google Patents
Embedded photoelectric signal processing and control system and usage method thereof Download PDFInfo
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- CN105425676A CN105425676A CN201510919890.0A CN201510919890A CN105425676A CN 105425676 A CN105425676 A CN 105425676A CN 201510919890 A CN201510919890 A CN 201510919890A CN 105425676 A CN105425676 A CN 105425676A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/21—Pc I-O input output
- G05B2219/21126—Signal processing, filter input
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- Automation & Control Theory (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention discloses an embedded photoelectric signal processing and control system and a usage method thereof. A six quadrant photoelectric signal acquisition circuit is included. The six quadrant photoelectric signal acquisition circuit is successively connected to a signal conditioning circuit and an analog to digital conversion circuit. The analog to digital conversion circuit is connected to a master control circuit. The master control circuit is connected to a driving structure. The six quadrant photoelectric signal acquisition circuit, the master control circuit and the driving structure are connected to a power supply. By using the system and the method in the invention, multipath signals can be simultaneously processed; a simulation signal is converted into a high-precision digital signal so that high-precision measurement and control to a mobile object can be completed; the system and the method are suitable for industrial high-precision measurement and control so that the industrial measurement and control precision reach a micro-nano level. Simultaneously, system stability is good, an anti-electromagnetic interference capability is high, industrial-level high reliable performance is possessed and there is no dead halt phenomenon. A response speed to an emergent event is fast. The system and the method possess characteristics that installation is simple; operation is stable; efficiency is high; cost is low; maintenance and upgrading are easy and so on.
Description
Technical field
The present invention relates to a kind of control panel, particularly relate to a kind of embedded photoelectric signal transacting and control system and using method thereof.
Background technology
Photoelectric Signal Processing and control system are the cores of optical grid line displacement sensor system, and optical grid line displacement sensor is the key components of precision manufactureing industry and fine measuring instrument.The Photoelectric Signal Processing that China is present and control system also exist control accuracy difference, and anti-electromagnetic interference capability is weak, and system stability is poor, and versatility is strong, and technology content is lower, with the upgrading of product and the shortcoming such as the ability of maintenance is more weak.Therefore, need to carry out new-type Photoelectric Signal Processing and the exploitation of control system, explore and there is high-precision Photoelectric Signal Processing and control system.
Summary of the invention
For solving the problem, the invention provides a kind of embedded photoelectric signal transacting and control system and using method thereof.The present invention can process multiple signals simultaneously, simulating signal is converted to high-accuracy digital signal, thus the high-acruracy survey that can complete mobile object and control, be suitable for industrial high-acruracy survey and control, commercial measurement and control accuracy is made to reach micro-nano rank, meanwhile, system stability is good, and anti-electromagnetic interference capability is strong, there is the high reliability of technical grade, without deadlock phenomenon, response speed for accident is faster, meanwhile, has and installs simply, stable, efficiency is high, and cost is low, is easy to the features such as maintenance and upgrading.
For reaching above-mentioned technique effect, technical scheme of the present invention is:
A kind of embedded photoelectric signal transacting and control system, comprise six Quadrant photo signal acquisition circuits, described six Quadrant photo signal acquisition circuits are connected with signal conditioning circuit, signal conditioning circuit is connected with analog to digital conversion circuit, analog to digital conversion circuit is connected with governor circuit, and governor circuit is connected with drives structure; Described six Quadrant photo signal acquisition circuits, governor circuit are all connected with power supply with drives structure.
Further improvement, described six Quadrant photo signal acquisition circuits comprise six quadrant photodetectors; Described six quadrant photodetectors comprise four-quadrant photo detector, are connected to a diode above and below four-quadrant photo detector; Six diodes in six quadrant photodetectors are connected to an amplifying circuit of analog signal, and described amplifying circuit of analog signal comprises operational amplifier, and operational amplifier is AD795 chip; Amplifying circuit of analog signal is connected with photoelectric conversion circuit.
Further improvement, described signal conditioning circuit comprises filtering circuit and ADA4610-2 two-path amplifier, and filtering circuit comprises Ba Erwoji wave filter and Qie Beixuefu wave filter.
Further improvement, analog-digital conversion circuit as described comprises the AD7606-6 modulus conversion chip of 16.
Further improvement, described governor circuit is STM32 governor circuit, and STM32 governor circuit comprises STM32F103RCT main control chip, and STM32F103RCT main control chip is connected with crystal oscillating circuit, reset circuit, drives structure, jtag interface and display device.
Further improvement, described display device comprises liquid crystal display, and liquid crystal display is connected with auxiliary circuit.
Further improvement, the filter capacitor that described power supply comprises ± 5V voltage output, 3.3V voltage exports and is connected with microprocessor; Described ± 5V voltage exports as MAX660 voltage adjuster, and described 3.3V voltage exports the AS1117-3.3 chip for carrying out voltage transitions.
Further improvement, described drives structure comprises serial port drive and PWM ripple drives; Drives structure is connected with LED.
The using method of a kind of embedded photoelectric signal transacting and control system, comprise the steps: that six Quadrant photo signal acquisition circuits will collect light signal and be converted into electric signal, and electric signal is amplified, generate simulating signal, signal conditioning circuit carries out filtering to simulating signal, then simulating signal is carried out binaryzation generation digital signal by analog to digital conversion circuit, digital signal is inputted governor circuit by analog to digital conversion circuit, governor circuit is according to the attitude of digital signal by drives structure adjustment measuring system, and by the display of the measurement result of measuring system on the display apparatus.
Further improvement, governor circuit is by the serial port drive of drives structure or the attitude of PWM ripple drived control measuring system.
Feature of the present invention and beneficial effect: multiple signals can be processed simultaneously, simulating signal is converted to high-accuracy digital signal, thus the high-acruracy survey that can complete mobile object and control, be suitable for industrial high-acruracy survey and control, commercial measurement and control accuracy is made to reach micro-nano rank, simultaneously, system stability is good, anti-electromagnetic interference capability is strong, there is the high reliability of technical grade, without deadlock phenomenon, response speed for accident is faster, simultaneously, have and install simply, stable, efficiency is high, cost is low, be easy to the features such as maintenance and upgrading, system not only can implement round-the-clock automatic monitoring to light signal, and its Measurement & Control precision reaches micro/nano level, can meet the requirement to high precision Industry Control.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present invention;
Fig. 2 is the schematic diagram of main control chip structure;
Fig. 3 A is the schematic diagram of BOOT selection circuit;
Fig. 3 B is the schematic diagram of crystal oscillating circuit;
Fig. 3 C is the schematic diagram of reset circuit;
Fig. 3 D is the circuit theory diagrams of JYAY download interface;
Fig. 4 is the schematic diagram of amplifying circuit of analog signal;
Fig. 5 is the schematic diagram of photoelectric conversion circuit;
Fig. 6 is the schematic diagram of signal conditioning circuit
Fig. 7 is the schematic diagram of analog to digital conversion circuit;
Fig. 8 is the schematic diagram of drives structure;
Fig. 9 A is the structure principle chart that+5V turns-5V power-switching circuit;
Fig. 9 B turns+3.3V power-switching circuit structure principle chart for-5V;
Fig. 9 C is+5V input power structure principle chart;
Fig. 9 D is AD7606 electric source filter circuit schematic diagram;
Fig. 9 E is the filter power supply circuit theory diagrams of governor circuit.
Embodiment
Embodiment 1
A kind of embedded photoelectric signal transacting as shown in Figure 1 and control system, comprise six Quadrant photo signal acquisition circuits, comprise six Quadrant photo signal acquisition circuits, described six Quadrant photo signal acquisition circuit connection signal modulate circuits, signal conditioning circuit connects analog to digital conversion circuit, analog to digital conversion circuit is connected with governor circuit, and governor circuit connects drives structure; Described six Quadrant photo signal acquisition circuits, governor circuit are all connected with power supply with drives structure.The present invention is gathered by six Quadrant photo signal acquisition circuits measurement photosignal, amplifies, and then by signal input signal conditioning circuit and analog to digital conversion circuit, complete the filtering to simulating signal, binaryzation, afterwards high-accuracy digital signal is inputted STM32 governor circuit, and then complete the adjustment to measuring system attitude and the display to measurement result by drives structure;
Six Quadrant photo signal acquisition circuits comprise six quadrant photodetectors that are made up of two photodiodes and four-quadrant photo detector and based on the amplifying circuit of analog signal of AD795 operational amplifier, as shown in Figure 4; The connecting analog signal amplification circuit respectively of six diodes in six quadrant photodetectors.Wherein, measurement light signal is transformed into faint electric signal by six quadrant photodetectors, meanwhile, based on the amplifying circuit of analog signal of AD795 operational amplifier, weak electric signal is amplified to the electrical signal intensity met needed for subsequent conditioning circuit (photoelectric conversion circuit etc.) process; Then by the electric signal input signal conditioning circuit after amplification.As shown in Figure 5, in photoelectric conversion circuit, SIGN1, SIGN2, SIGN3, SIGN4, SIGN5 and SIGN6 are connected an amplifying circuit of analog signal respectively.
As shown in Figure 6, described signal conditioning circuit comprises the filtering circuit that low pass Ba Erwoji wave filter combines with high pass Qie Beixuefu wave filter, the electric signal produced due to detector is mingled with a large amount of environment clutters, the thermonoise of system own etc., affect larger for the analog to digital conversion circuit analog to digital conversion of system and the precise hard_drawn tuhes of STM32 governor circuit, thus native system is selected based on the combined filter circuit of twin-channel ADA4610-2 of high precision, zero temp shift, by clutter removing useless in system, by the analog electrical signal input analog to digital conversion circuit after filtering.
As shown in Figure 7, analog to digital conversion circuit select 6 passage DAS, built-in 16, bipolarity input, synchronized sampling high precision analogue conversion chip AD7606-6(purchased from ADI company), it has the true bipolar analog input range of ± 10V, ± 5V, in the present invention, select ± 5V is as analog input scope; It is 5V single analog power supply, has the input buffer of 1M Ω analog input impedance, the anti-aliasing analog filter of second order; AD7606 is that parallel interface exports in this example, wherein DB0 ~ DB15 and STM32 governor circuit PC0 ~ PC15 is connected, wherein analog input V1 ~ V6 is connected with signal conditioning circuit, and wherein CONVSTA, CONVSTB, RESET, RD, BUSY of AD7606 access STM32 governor circuit.
As shown in Figure 2, described STM32 governor circuit take STM32F103RCT as main control chip (purchased from ST Microelectronics), in conjunction with crystal oscillating circuit (shown in Fig. 3 B), reset circuit (shown in Fig. 3 C), driving circuit, BOOT selection circuit (shown in Fig. 3 A), JIAY download interface (shown in Fig. 3 D), the composition such as S110 liquid crystal display drive circuit and display device, wherein in this example, STM32F103RCT main control chip with the Cortex-M3 of ARM32 position for kernel, it is the highest can be operated in 72MHz, there is the FLASH program memory of 128k byte, up to the SRAM of 20k byte, there is clock, reset, the functions such as power management, simultaneously, low in energy consumption, meet the requirement for some portable sets,
As shown in Figure 8, namely described drives structure can be met STM32 governor circuit and be regulated whole control system by serial ports, also the output of PWM ripple can be carried out by external wire jumper to the structure of required control, also feedback signal can be returned governor circuit by driving mechanism, the effect forming the control of a kind of close-loop feedback is controlled to whole, simultaneously, outlet line has been installed LED, when circuit normally works, LED can be in luminous state, circuit can be reacted so clearly whether normally work, the difficulty that the drives structure reducing artificial investigation is made mistakes;
As shown in Fig. 9 A, Fig. 9 B, Fig. 9 C, Fig. 9 D, Fig. 9 E, power supply is basis and the guarantee of the work of Circuits System normal table, and the reliability of power circuit directly determines the success or failure of whole circuit design.Each comprising modules in native system needs different supply voltages, and therefore power module needs to provide multiple different voltage to export.Consider the interference between each comprising modules and isolating problem, some module in system also needs independent power supply.Six quadrant photodetectors in native system and signal conditioning circuit adopt ± 5V direct current supply, as shown in Fig. 9 C, Fig. 9 D and Fig. 9 E.STM32 governor circuit and analog to digital conversion circuit supply voltage are 3.3V.So whole system needs ± 5V and 3.3V two kinds of voltages export.The 5V voltage that power supply exports is directly by accumulator or 220V AC-powered.Export-5V voltage and export employing voltage adjuster MAX660, fixing output voltage-5V, input voltage+5V(are as shown in Figure 9 A).3.3V voltage exports and adopts AS1117-3.3V chip to carry out voltage transitions, and fixing output voltage 3.3V, input voltage 5V(are as shown in Figure 9 B).
Embodiment 2
The using method of a kind of embedded photoelectric signal transacting and control system, by six Quadrant photo signal acquisition circuits, measurement photosignal is gathered, amplified, and then by signal input signal conditioning circuit and analog to digital conversion circuit, complete the filtering to simulating signal, binaryzation, afterwards high-accuracy digital signal is inputted STM32 governor circuit, and then complete the adjustment to measuring system attitude and the display to measurement result by drives structure; It can process multiple signals simultaneously, simulating signal is converted to high-accuracy digital signal, thus the high-acruracy survey that can complete mobile object and control, be suitable for industrial high-acruracy survey and control, commercial measurement and control accuracy is made to reach micro-nano rank, meanwhile, system stability is good, and anti-electromagnetic interference capability is strong, there is the high reliability of technical grade, without deadlock phenomenon, response speed for accident is faster, meanwhile, has and installs simply, stable, efficiency is high, and cost is low, is easy to the features such as maintenance and upgrading.System not only can implement round-the-clock automatic monitoring to light signal, and its Measurement & Control precision reaches micro/nano level, can meet the requirement to high precision Industry Control.
The explanation of above example just understands core concept of the present invention for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. an embedded photoelectric signal transacting and control system, it is characterized in that, comprise six Quadrant photo signal acquisition circuits, described six Quadrant photo signal acquisition circuits are connected with signal conditioning circuit, signal conditioning circuit is connected with analog to digital conversion circuit, analog to digital conversion circuit is connected with governor circuit, and governor circuit is connected with drives structure; Described six Quadrant photo signal acquisition circuits, governor circuit are all connected with power supply with drives structure.
2. embedded photoelectric signal transacting as claimed in claim 1 and control system, it is characterized in that, described six Quadrant photo signal acquisition circuits comprise six quadrant photodetectors; Described six quadrant photodetectors comprise four-quadrant photo detector, are connected to a diode above and below four-quadrant photo detector; Six diodes in six quadrant photodetectors are connected to an amplifying circuit of analog signal, and described amplifying circuit of analog signal comprises operational amplifier, and operational amplifier is AD795 chip; Amplifying circuit of analog signal is connected with photoelectric conversion circuit.
3. embedded photoelectric signal transacting as claimed in claim 1 and control system, it is characterized in that, described signal conditioning circuit comprises filtering circuit and ADA4610-2 two-path amplifier, and filtering circuit comprises Ba Erwoji wave filter and Qie Beixuefu wave filter.
4. embedded photoelectric signal transacting as claimed in claim 1 and control system, it is characterized in that, analog-digital conversion circuit as described comprises the AD7606-6 modulus conversion chip of 16.
5. embedded photoelectric signal transacting as claimed in claim 1 and control system, it is characterized in that, described governor circuit is STM32 governor circuit, STM32 governor circuit comprises STM32F103RCT main control chip, and STM32F103RCT main control chip is connected with crystal oscillating circuit, reset circuit, drives structure, jtag interface and display device.
6. embedded photoelectric signal transacting as claimed in claim 5 and control system, it is characterized in that, described display device comprises liquid crystal display, and liquid crystal display is connected with auxiliary circuit.
7. embedded photoelectric signal transacting as claimed in claim 1 and control system, is characterized in that, the filter capacitor that described power supply comprises ± 5V voltage output, 3.3V voltage exports and is connected with microprocessor; Described ± 5V voltage exports as MAX660 voltage adjuster, and described 3.3V voltage exports the AS1117-3.3 chip for carrying out voltage transitions.
8. embedded photoelectric signal transacting as claimed in claim 1 and control system, is characterized in that, described drives structure comprises serial port drive and PWM ripple drives; Drives structure is connected with LED.
9. the using method of an embedded photoelectric signal transacting and control system, it is characterized in that, comprise the steps: that six Quadrant photo signal acquisition circuits will collect light signal and be converted into electric signal, and electric signal is amplified, generate simulating signal, signal conditioning circuit carries out filtering to simulating signal, then simulating signal is carried out binaryzation generation digital signal by analog to digital conversion circuit, digital signal is inputted governor circuit by analog to digital conversion circuit, governor circuit is according to the attitude of digital signal by drives structure adjustment measuring system, and by the display of the measurement result of measuring system on the display apparatus.
10. the using method of embedded photoelectric signal transacting as claimed in claim 9 and control system, is characterized in that, governor circuit is by the serial port drive of drives structure or the attitude of PWM ripple drived control measuring system.
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| CN201510919890.0A CN105425676A (en) | 2015-12-11 | 2015-12-11 | Embedded photoelectric signal processing and control system and usage method thereof |
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| CN201510919890.0A CN105425676A (en) | 2015-12-11 | 2015-12-11 | Embedded photoelectric signal processing and control system and usage method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108828313A (en) * | 2018-09-05 | 2018-11-16 | 保定威晟电力设备科技有限公司 | The wireless vector synchronized measurement system of zinc oxide arrester tester |
| CN111061179A (en) * | 2019-10-28 | 2020-04-24 | 南京工业大学 | Embedded modular main control system of multi-component online analyzer |
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