CN209279968U - A kind of high-precision tilt angle measuring device based on CCD linear array - Google Patents
A kind of high-precision tilt angle measuring device based on CCD linear array Download PDFInfo
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- CN209279968U CN209279968U CN201822103612.XU CN201822103612U CN209279968U CN 209279968 U CN209279968 U CN 209279968U CN 201822103612 U CN201822103612 U CN 201822103612U CN 209279968 U CN209279968 U CN 209279968U
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Abstract
The utility model discloses a kind of high-precision tilt angle measuring device based on CCD linear array, basis of characterization of the common blister as light-transparent pattern is replaced using mercury by air level, the higher precision that provides small-range, linear good inclination measuring device；Equipment overall dimensions are small, structure is simple and low in energy consumption, and whole device can be Sensorised, achievees the effect that networking real-time monitoring；The scheme handled using ccd image, improves the anti-interference ability and data precision at mercury air level center；And have good real-time detection and long-range monitoring.
Description
Technical field
The present invention relates to inclination angle sensing detection correlative technology fields, it particularly relates to a kind of based on the high-precision of CCD linear array
Spend dip measuring device.
Background technique
In industries such as building, machinery, instrument and meter manufacture, measurements, it is often necessary to which whether detection object or plane are horizontal
(or vertical), people wait usually using horizontal ruler (or air level measuring instrument), dipmeter, inclinometer, inclinometer to carry out angle
Spend measure of the change.Wherein electrolevel of the level meter from past simple spirit level till now, conventional inclination
It is inadequate to there is the linear bad or precision of data in measurement sensor；Or the level(l)ing bubble based on the principle narrow slit light transmission due to
It is not clear enough with certain transparency or marginal surface profile, be easy to cause it is not high to CCD photosurface measurement accuracy in light transmission, no
The demand to high-acruracy survey occasion can be met.
Conventional equipment measurement accuracy is not high, stability is bad, cannot remotely monitor, my company because business carry out need it is a
The high precision apparatus of estimation of stability can be carried out to datum mark.So it is necessary to meet following condition for the equipment: automatic in real time
Change measurement, high-precision, within the scope of small-range it is linear well, can be used for correcting measurement result, high-precision inclination measurement, equipment and want
The requirement such as small and exquisite, high performance-price ratio.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Summary of the invention
For above-mentioned technical problem in the related technology, the present invention proposes that a kind of high-precision tilt angle based on CCD linear array is surveyed
Measure device.
The technical scheme of the present invention is realized as follows:
A kind of high-precision tilt angle measuring device based on CCD linear array, including the cold light source hair being fixed in target to be measured
System and receiving and processing device are penetrated, the incident light that the cold light source emission system is used to generate stable and uniform is handled to the reception
Device, the receiving and processing device include image processing control unit, are set to cold light source emission system and image procossing control
Narrow slit light tank between unit and the mercury air level being set between image processing control unit and narrow slit light tank dress
It sets, described image processing and control element (PCE) includes power supply power supply and Voltage stabilizing module, and the power supply power supply and Voltage stabilizing module are separately connected
There are line array CCD, the CCD connecting respectively with line array CCD driving mould group and main control module, the CCD driving mould group and main control module
LCD display module and wireless communication module is also respectively connected in communication connection, the main control module.
Further, the slit width of the narrow slit light tank is less than the mercury level bulb diameter in mercury level bulb apparatus.
Further, the line array CCD is ccd image sensor, and the CCD driving mould group is CCD driving chip, described
Main control module is STM32 microcontroller chip.
Further, it is connected between the CCD driving mould group and line array CCD by reverse phase Voltage stabilizing module.
Further, signal processing circuit is passed sequentially through between the line array CCD and main control module and A/D converter circuit connects
It connects.
Further, the CCD driving mould group is connect with the A/D converter circuit.
Further, the A/D converter circuit connection and reverse phase Voltage stabilizing module connect with the power supply power supply and Voltage stabilizing module
It connects.
A kind of high-precision tilt angle measurement method based on CCD linear array, comprising the following steps:
S1: the incident light that cold light source emission system generates stable and uniform sequentially passes through narrow slit light tank and mercury air level dress
Mercury air level in setting reaches line array CCD；
S2: line array CCD carries out Image Acquisition to the transmitted light optical signal for passing through mercury air level in S1, and is transferred to master control
Module carries out image analysis and storage；
S3: when target to be measured run-off the straight, the mercury in mercury level bulb apparatus is subjected to displacement or deformation at this time, line
Battle array CCD is subjected to displacement process or the transmitted light optical signal of deformation mercury air level carries out Image Acquisition, and is transferred to master control mould
Block carries out image analysis and obtains tilt data；
S4: main control module compares and analyzes the image analysis result in the tilt data and S2 in S3, calculate to
Survey time and the amplitude of target run-off the straight；
S5: the time of object to be measured run-off the straight calculated in S4 and amplitude transfer are shown mould to LCD by main control module
Block is shown, and module uploads to remote control center progress big data analysis by wireless communication.
Further, image analysis includes that the mercury image progress edge received to line array CCD mentions in step S2 and S3
It takes and Contour extraction, calculates the edge and centre coordinate of mercury image.
Further, the tilt data and image analysis result include at least the edge of mercury image and center is sat
Mark.
Beneficial effects of the present invention: by air level using mercury replace common blister as light-transparent pattern identification according to
According to providing the higher precision of small-range, linear good inclination measuring device；Equipment overall dimensions are small, structure is simple and function
Consume low, whole device can be Sensorised, achievees the effect that networking real-time monitoring；The scheme handled using ccd image, improves water
The anti-interference ability and data precision at silver-colored air level center；And have good real-time detection and long-range monitoring.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of the high-precision tilt angle measuring device based on CCD linear array according to the present invention；
Fig. 2 is a kind of structural block diagram of the high-precision tilt angle measuring device based on CCD linear array according to the present invention；
Fig. 3 is CCD sensed image identification frame in a kind of high-precision tilt angle measuring device based on CCD linear array according to the present invention
Figure；
Fig. 4 is CCD acquisition principle signal in a kind of high-precision tilt angle measuring device based on CCD linear array according to the present invention
Figure；
Fig. 5 is micro-control circuit theory signal in a kind of high-precision tilt angle measuring device based on CCD linear array according to the present invention
Figure.
In figure: 11, incident light, 22, the transmitted light after mercury air level, 3, image processing control unit, 4, narrow slit
Light tank, 5, mercury level bulb apparatus, 6, mercury air level, 7, target to be measured.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
As shown in Figs. 1-5, a kind of high-precision tilt angle measuring device based on CCD linear array according to an embodiment of the present invention, packet
The cold light source emission system 1 being fixed in target to be measured and receiving and processing device 2 are included, the cold light source emission system 1 is used for
The incident light of stable and uniform is generated to the receiving and processing device 2, the receiving and processing device 2 includes image processing control unit
3, it the narrow slit light tank 4 that is set between cold light source emission system 1 and image processing control unit 3 and is set at image
The mercury level bulb apparatus 5 between control unit 3 and narrow slit light tank 4 is managed, described image processing and control element (PCE) 3 is supplied including power supply
Electricity and Voltage stabilizing module 31, the power supply power supply and Voltage stabilizing module 31 are connected separately with line array CCD 32, connect respectively with line array CCD 32
The CCD driving mould group 33 and main control module 34 connect, the CCD driving mould group 33 and main control module 34 communicate to connect, the master control
LCD display module 35 and wireless communication module 36 is also respectively connected in module 34.
In the present embodiment, cold light source emission system 1 has spectrum-stable uniform, optical path can be put down as incident light emitting end
Row projects the narrow slit light tank 4 of receiving and processing device 2；Narrow slit light tank 4 is flat, is mounted on mercury level bulb apparatus 5 one
Side, width is much smaller than mercury level bulb diameter, and place coordinate position can be finely tuned according to incident light angle, it is ensured that transmission
Light can pass through the mercury air level center in mercury level bulb apparatus, and finally the CCD in the mercury level bulb apparatus other side schemes
As sensor can receive optical signal.
In the present embodiment, the line array CCD 32 is ccd image sensor, and the CCD driving mould group 33 is that CCD drives core
Piece, the main control module 34 are STM32 microcontroller chip.
In the present embodiment, connected between the CCD driving mould group 33 and line array CCD 32 by reverse phase Voltage stabilizing module.
In the present embodiment, signal processing circuit and AD conversion are passed sequentially through between the line array CCD 32 and main control module 34
Circuit connection.
In the present embodiment, the CCD driving mould group 33 is connect with the A/D converter circuit.
In the present embodiment, A/D converter circuit connection and reverse phase Voltage stabilizing module with the power supply power supply and Voltage stabilizing module
31 connections.
A kind of high-precision tilt angle measurement method based on CCD linear array, comprising the following steps:
S1: the incident light that cold light source emission system 1 generates stable and uniform sequentially passes through narrow slit light tank 4 and mercury air level
Mercury air level in device 5 reaches line array CCD 32；
S2: line array CCD 32 carries out Image Acquisition to the transmitted light optical signal for passing through mercury air level in S1, and is transferred to master
It controls module 34 and carries out image analysis and storage；
S3: when target to be measured run-off the straight, the mercury in mercury level bulb apparatus 5 is subjected to displacement or deformation at this time,
32 pairs of line array CCD processes are subjected to displacement or the transmitted light optical signal of deformation mercury air level carries out Image Acquisition, and are transferred to master
Control module 34 carries out image analysis and obtains tilt data；
S4: main control module 34 compares and analyzes the image analysis result in the tilt data and S2 in S3, calculates
The time of object to be measured run-off the straight and amplitude；
S5: main control module 34 shows the time of object to be measured run-off the straight calculated in S4 and amplitude transfer to LCD
Module 35 is shown, and module 36 uploads to remote control center progress big data analysis by wireless communication.
In the present embodiment, image analysis includes that the mercury image received to line array CCD 32 carries out side in step S2 and S3
Edge extracts and Contour extraction, calculates the edge and centre coordinate of mercury image.
In the present embodiment, the tilt data and image analysis result include at least the edge and center of mercury image
Coordinate.
Specifically, the process of the groundwork of ccd image acquisition is, as shown in figure 3, being produced first by STM32 main control chip
A raw enabling signal gives CCD driving chip, starts the reading of data one by one, and CCD driving chip generates driver' s timing and mentions
Supply line array CCD；CCD driving chip generates AD conversion clock and STM32 main control chip down trigger clock simultaneously；STM32 master
Control is connected with A/D converter circuit, and ccd data is directly read ram in slice during interrupt response, to carry out point of data
Analysis and processing.
As shown in figure 4, line array CCD is a kind of novel semiconductor integrated optical electrical part, have high resolution, stability good
The characteristics of, corresponding video signal is generated according to driver' s timing in laser irradiation to line array CCD, driver' s timing includes transfer pulse SH
(transfer for charge inducing to storage unit), clock pulses A1 A2 (for alternately the charge in storage element successively to be turned
Move on to output caching), reset pulse RS (reset of output state is reset, to carry out the output of next pixel), clamper arteries and veins
It rushes CP (clamping down on output signal in zero signal level), which is supplied to line array CCD by phase inverter pressure stabilizing output.
As shown in figure 5, Output Signal of Linear CCD's OS1/OS2, is mainly sent to A/D converter circuit progress by amplifier, filtering
Data quantization is converted into multidiameter delay data D0 ~ D7, finally send to STM32 governor circuit and carries out algorithm process, by projection
The mercury edge extracting and Contour extraction of imaging, determine its edge and centre coordinate, to accurately calculate object to be measured
Inclined time and amplitude；By LCD real-time display measurement data, and module by wireless communication, data are passed through into wireless office
Domain reaches Centralized Controller on the net.
It can be seen that being made using mercury instead of common blister by means of above-mentioned technical proposal of the invention by air level
For the basis of characterization of light-transparent pattern, the higher precision of small-range, linear good inclination measuring device are provided；Equipment entirety ruler
It is very little it is small, structure is simple and low in energy consumption, whole device can be Sensorised, achievees the effect that networking real-time monitoring；At ccd image
The scheme of reason improves the anti-interference ability and data precision at mercury air level center；And has good real-time detection
And long-range monitoring.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of high-precision tilt angle measuring device based on CCD linear array, which is characterized in that including being fixed in target to be measured
Cold light source emission system (1) and receiving and processing device (2), the cold light source emission system (1) is for generating entering for stable and uniform
Light is penetrated to the receiving and processing device (2), the receiving and processing device (2) include image processing control unit (3), be set to it is cold
Narrow slit light tank (4) between light source emission system (1) and image processing control unit (3) and it is set to image procossing control
Mercury level bulb apparatus (5) between unit (3) processed and narrow slit light tank (4), described image processing and control element (PCE) (3) include electricity
Source power supply and Voltage stabilizing module (31), the power supply power supply and Voltage stabilizing module (31) be connected separately with line array CCD (32), respectively with line
Battle array CCD(32) connection CCD driving mould group (33) and main control module (34), the CCD drives mould group (33) and main control module
(34) it communicates to connect, LCD display module (35) and wireless communication module (36) is also respectively connected in the main control module (34).
2. a kind of high-precision tilt angle measuring device based on CCD linear array according to claim 1, which is characterized in that described
The slit width of narrow slit light tank (4) is less than the mercury level bulb diameter in mercury level bulb apparatus (5).
3. a kind of high-precision tilt angle measuring device based on CCD linear array according to claim 1, which is characterized in that described
Line array CCD (32) is ccd image sensor, and CCD driving mould group (33) is CCD driving chip, the main control module (34)
For STM32 microcontroller chip.
4. a kind of high-precision tilt angle measuring device based on CCD linear array according to claim 1, which is characterized in that described
It is connect between CCD driving mould group (33) and line array CCD (32) by reverse phase Voltage stabilizing module.
5. a kind of high-precision tilt angle measuring device based on CCD linear array according to claim 4, which is characterized in that described
Signal processing circuit is passed sequentially through between line array CCD (32) and main control module (34) and A/D converter circuit is connect.
6. a kind of high-precision tilt angle measuring device based on CCD linear array according to claim 5, which is characterized in that described
CCD driving mould group (33) is connect with the A/D converter circuit.
7. a kind of high-precision tilt angle measuring device based on CCD linear array according to claim 6, which is characterized in that described
A/D converter circuit connection and reverse phase Voltage stabilizing module are connect with the power supply power supply and Voltage stabilizing module (31).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109540102A (en) * | 2018-12-14 | 2019-03-29 | 中铁建设集团有限公司 | A kind of high-precision tilt angle measuring device and method based on CCD linear array |
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| CN109540102A (en) * | 2018-12-14 | 2019-03-29 | 中铁建设集团有限公司 | A kind of high-precision tilt angle measuring device and method based on CCD linear array |
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