CN201413147Y - Visible light transmitting and receiving direct reader optical encoding and detecting device - Google Patents
Visible light transmitting and receiving direct reader optical encoding and detecting device Download PDFInfo
- Publication number
- CN201413147Y CN201413147Y CN2009200273018U CN200920027301U CN201413147Y CN 201413147 Y CN201413147 Y CN 201413147Y CN 2009200273018 U CN2009200273018 U CN 2009200273018U CN 200920027301 U CN200920027301 U CN 200920027301U CN 201413147 Y CN201413147 Y CN 201413147Y
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- visible light
- circuit plate
- light emission
- microprocessor
- signal deteching
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Abstract
The utility model discloses a visible light transmitting and receiving direct reader optical encoding and detecting device, which comprises a digital wheel (4), a signal detection circuit board (1), apower circuit (6) and a micro processing unit circuit board (5), and is characterized in that the upper part of the signal detection circuit board (1) is provided with a visible light emission tube (2), the middle part is provided with a reflection visible light receiving tube (3), and the lower part is provided with the power circuit (6); and the digital wheel (4) is provided with axial black and white strips (7) which can be separated and distinguished. The visible light emission tube and the reflection visible light receiving tube adopt a more-to-few mode and the invisible light is used tosubstitute infrared ray, the visible light transmitting and receiving direct reader optical encoding and detecting device can reduce photoelectric devices for detection, so that the structure is simple and the cost is reduced; and because the output electric signal is converted by A/D and replaces a logical signal processing method, the resolution and the capability of resisting the inference ofthe outside environment conditions are improved.
Description
Technical field
The utility model relates to the photoelectric conversion technique field, belongs to the improvement of employed photoelectric coding detecting device in the direct-reading gage, and a kind of specifically VISIBLE LIGHT EMISSION receiving type direct-reading gage photoelectric coding detecting device is applicable to direct-reading gages such as water meter, watt-hour meter and gas meter.
Technical background
At present, the direct-reading gage technology is meant by the register wheel digital being carried out optical markings coding and reads a kind of photoelectric conversion technique of register data, be widely used in water meter, watt-hour meter and the gas meter, its critical piece is the photoelectric coding detecting device, its structure comprises infrared photoelectric sensor, testing circuit, logical signal treatment circuit, its advantage is: the current registration that can directly read register with the form of electric signal, therefore, reading is direct, convenient, photosignal conversion reliability height.But also have the following disadvantages: because it has adopted infrared photoelectric sensor to detect the coded markings that prints on the character wheel, and be divided into transmission-type or reflective two kinds of working methods again, in the transmission-type working method, testing circuit is to adopt many infrared emission tube and infrared receiver tube to be finished opto-electronic conversion to a wheel digital, in reflective working method, testing circuit is to adopt many opto-electronic conversion of reflection type infrared sensor being finished a character wheel, therefore, complex structure, cost height, low, the anti-external environment condition interference capability of resolution are poor.
Summary of the invention
The purpose of this utility model be to provide a kind of simple in structure, cost is low, resolution is high, anti-external environment condition interference capability is strong, be exclusively used in direct-reading gages such as water meter, watt-hour meter, gas meter, adopt many VISIBLE LIGHT EMISSION receiving type direct-reading gage photoelectric coding detecting devices few pattern.
For reaching above purpose, the technical scheme that the utility model adopted is: this VISIBLE LIGHT EMISSION receiving type direct-reading gage photoelectric coding detecting device, comprise digital wheel, the signal deteching circuit plate, power circuit and microcontroller circuit plate constitute, digital wheel and the parallel installation of signal deteching circuit plate, the signal deteching circuit plate is installed with the microcontroller circuit plate is vertical, it is characterized in that establishing the VISIBLE LIGHT EMISSION pipe on the top of signal deteching circuit plate, establish the reflect visible light receiving tube at the middle part of signal deteching circuit plate, power circuit is established in bottom at the signal deteching circuit plate, but is provided with the axially black and white bar of space differentiation on digital wheel.
The utility model is also implemented by following measure: the VISIBLE LIGHT EMISSION pipe on the described signal deteching circuit plate is equidistantly arranged along the radian line, the base stage of VISIBLE LIGHT EMISSION pipe is connected with microprocessor on the microcontroller circuit plate, and its base electrode connects the grouping light emitting diode; The installation number of elements of reflect visible light receiving tube is 1 with the ratio of the installation number of elements of VISIBLE LIGHT EMISSION pipe: 3-10, the base electrode of reflect visible light receiving tube connects the microprocessor on the microcontroller circuit plate, three-terminal voltage-stabilizing chip in the power circuit connects the microprocessor on grouping light emitting diode and the microcontroller circuit plate simultaneously, finish detection by adopting into VISIBLE LIGHT EMISSION pipe that radian arranges and the reflect visible light receiving tube that is in the center to the opto-electronic conversion of a character wheel, the output electric signal of reflect visible light receiving tube is input to the microprocessor internal of microcontroller circuit plate with the mode of A/D conversion, realizes the decoding of logarithm code wheel current location then by microprocessor according to the A/D data.
Circuit component on described microcontroller circuit plate and the signal deteching circuit plate comprises the microprocessor U on the microcontroller circuit plate
5, VISIBLE LIGHT EMISSION pipe N
1, N
2, N
3, N
4, N
5, grouping light emitting diode U
2, U
3, U
4, reflect visible light receiving tube P
1, the three-terminal voltage-stabilizing chip U in the power circuit
1, VISIBLE LIGHT EMISSION pipe N wherein
1, N
2, N
3, N
4, N
5Be controlled, so the microprocessor U on the microcontroller circuit plate
5Before reading valid data, can read the environment light intensity earlier, and then control the coded markings of lighting on the VISIBLE LIGHT EMISSION pipe detection digital wheel with A/D, the influence that can deduct surround lighting like this, so reading is more accurate; The base stage of described VISIBLE LIGHT EMISSION pipe N1, N2, N3, N4, N5 respectively with the microcontroller circuit plate on microprocessor U
513 pin, 12 pin, 11 pin, 10 pin, 9 pin, 8 pin link to each other the base electrode of reflect visible light receiving tube P1 and the microprocessor U on the microcontroller circuit plate
51 pin link to each other, by the microprocessor U of microcontroller circuit plate
5Internal processes carries out control detection, when digital wheel is in a certain state position, and the microprocessor U on the microprocessor board circuit board
5Send instruction, allow VISIBLE LIGHT EMISSION pipe N1, N2, N3, N4, N5 light according to certain order, the light that VISIBLE LIGHT EMISSION pipe N1, N2, N3, N4, N5 send, but after the reflection of the black and white bar that the axial space of process digital wheel is distinguished, visible light receiving tube P is reflected
1Receive, because VISIBLE LIGHT EMISSION pipe N1, N2, N3, N4, N5 are positioned on the diverse location of signal deteching circuit plate, so light that each the VISIBLE LIGHT EMISSION pipe among VISIBLE LIGHT EMISSION pipe N1, N2, N3, N4, the N5 sends, but the light intensity after the reflection of the black and white bar of distinguishing through the axial space of digital wheel is also different, reflect visible light receiving tube P
1The electric signal that is produced on the microcontroller circuit plate also is the electric signal of different sizes, through the microprocessor U on the microcontroller circuit plate
5After the processing, be processed into different digital coding.Same reason, each state of digital wheel is with regard to corresponding a different set of numerical coding.
The beneficial effects of the utility model are: be used for water meter, watt-hour meter and gas meter photoelectric coding detecting device at present and compare, owing to adopted the many of many visible light-emitting tubes and minority reflect visible light receiving tube to few pattern, traditional five pairs of far infrared power valves and far infrared receiving tube have been replaced, replace infrared ray with visible light simultaneously, so can reduce the photoelectric device that detects usefulness, make it simple in structure, reduce cost; Because the output electric signal adopts the A/D conversion to replace the logical signal processing mode, so improved resolution and anti-external environment condition interference capability.
Description of drawings
Fig. 1 looks synoptic diagram for the utility model structure master.
Fig. 2 is the utility model signal deteching circuit plate schematic side view.
Fig. 3 is the microcontroller circuit plate of an embodiment of the utility model and the circuit theory synoptic diagram on the signal deteching circuit plate.
Embodiment
Make the utility model with reference to accompanying drawing 1,2,3.This VISIBLE LIGHT EMISSION receiving type direct-reading gage photoelectric coding detecting device, comprise digital wheel 4, signal deteching circuit plate 1, power circuit 6 and microcontroller circuit plate 5 constitute, digital wheel 4 and the 1 parallel installation of signal deteching circuit plate, signal deteching circuit plate 1 and the 5 vertical installations of microcontroller circuit plate, it is characterized in that establishing VISIBLE LIGHT EMISSION pipe 2 on the top of signal deteching circuit plate 1, establish reflect visible light receiving tube 3 at the middle part of signal deteching circuit plate 1, establish power circuit 6 in the bottom of signal deteching circuit plate 1, but on digital wheel 4, be provided with the axially black and white bar 7 of space differentiation.
VISIBLE LIGHT EMISSION pipe 2 on the described signal deteching circuit plate 1 is equidistantly arranged along the radian line, and the base stage of VISIBLE LIGHT EMISSION pipe 2 is connected with microprocessor on the microcontroller circuit plate 5, and its base electrode connects the grouping light emitting diode; The installation number of elements of reflect visible light receiving tube 3 is 1 with the ratio of the installation number of elements of VISIBLE LIGHT EMISSION pipe 2: 3-10, the base electrode of reflect visible light receiving tube 3 meet the microprocessor U on the microcontroller circuit plate 5
51 pin, the three-terminal voltage-stabilizing chip U in the power circuit 6
1Meet grouping light emitting diode U simultaneously
2, U
3, U
4With the microprocessor U on the microcontroller circuit plate 5
52 pin and 5 pin.By the detection of adopting many visible light-emitting tubes 2 and minority reflect visible light receiving tube 3 to finish, the output electric signal of reflect visible light receiving tube 3 is input to microprocessor U on the microcontroller circuit plate 5 with the mode of A/D conversion to the opto-electronic conversion of a character wheel
5Inside is then by microprocessor U
5Realize the decoding of logarithm code wheel 4 current locations according to the A/D data.
Fig. 3 has provided the circuit theory diagrams of an embodiment, and the circuit component on its described microcontroller circuit plate 5 and the signal deteching circuit plate 1 comprises the microprocessor U on the microcontroller circuit plate 5
5, VISIBLE LIGHT EMISSION pipe N
1, N
2, N
3, N
4, N
5, grouping light emitting diode U
2, U
3, U
4, reflect visible light receiving tube P
1, the three-terminal voltage-stabilizing chip U in the power circuit 6
1, VISIBLE LIGHT EMISSION pipe N wherein
1, N
2, N
3, N
4, N
5Be controlled, so the microprocessor U on the microcontroller circuit plate 5
5Before reading valid data, can read the environment light intensity earlier, and then control the coded markings of lighting on the VISIBLE LIGHT EMISSION pipe detection digital wheel with A/D, the influence that can deduct surround lighting like this, so reading is more accurate; The base stage of described VISIBLE LIGHT EMISSION pipe N1, N2, N3, N4, N5 respectively with microcontroller circuit plate 5 on microprocessor U
513 pin, 12 pin, 11 pin, 10 pin, 9 pin, 8 pin link to each other the base electrode of reflect visible light receiving tube P1 and the microprocessor U on the microcontroller circuit plate 5
51 pin link to each other, by the microprocessor U of microcontroller circuit plate 5
5Internal processes carries out control detection, when digital wheel 4 is in a certain state position, and the microprocessor U on the microprocessor board circuit board 5
5Send instruction, allow VISIBLE LIGHT EMISSION pipe N1, N2, N3, N4, N5 light according to certain order, the light that VISIBLE LIGHT EMISSION pipe N1, N2, N3, N4 send, but after the reflection of the black and white bar 7 that the axial space of process digital wheel 4 is distinguished, visible light receiving tube P is reflected
1Receive, because VISIBLE LIGHT EMISSION pipe N1, N2, N3, N4, N5 are positioned on the diverse location of signal deteching circuit plate 1, so light that each the VISIBLE LIGHT EMISSION pipe among VISIBLE LIGHT EMISSION pipe N1, N2, N3, N4, the N5 sends, but the light intensity after the reflection of the black and white bar of distinguishing through the axial space of digital wheel 47 is also different, reflect visible light receiving tube P
1The electric signal that is produced on microcontroller circuit plate 5 also is the electric signal of different sizes, through the microprocessor U on the microcontroller circuit plate 5
5After the processing, be processed into different digital coding.Same reason, each state of digital wheel 4 is with regard to corresponding a different set of numerical coding.
Claims (3)
1, a kind of VISIBLE LIGHT EMISSION receiving type direct-reading gage photoelectric coding detecting device, comprise digital wheel (4), signal deteching circuit plate (1), power circuit (6) and microcontroller circuit plate (5) constitute, digital wheel (4) and the parallel installation of signal deteching circuit plate (1), signal deteching circuit plate (1) and the vertical installation of microcontroller circuit plate (5), it is characterized in that establishing VISIBLE LIGHT EMISSION pipe (2) on the top of signal deteching circuit plate (1), establish reflect visible light receiving tube (3) at the middle part of signal deteching circuit plate (1), establish power circuit (6) in the bottom of signal deteching circuit plate (1), at digital wheel (4) but on be provided with the black and white bar (7) that axial space is distinguished.
2, VISIBLE LIGHT EMISSION receiving type direct-reading gage photoelectric coding detecting device according to claim 1, it is characterized in that the VISIBLE LIGHT EMISSION pipe (2) on the described signal deteching circuit plate (1) equidistantly arranges along the radian line, the base stage of VISIBLE LIGHT EMISSION pipe (2) is connected with microprocessor on the microcontroller circuit plate (5), and its base electrode connects the grouping light emitting diode; The ratio of the installation number of elements of the installation number of elements of reflect visible light receiving tube (3) and VISIBLE LIGHT EMISSION pipe (2) is 1: 3-10, the base electrode of reflect visible light receiving tube (3) connects the microprocessor on the microcontroller circuit plate (5), and the three-terminal voltage-stabilizing chip in the power circuit (6) connects the microprocessor on grouping light emitting diode and the microcontroller circuit plate (5) simultaneously.
3, VISIBLE LIGHT EMISSION receiving type direct-reading gage photoelectric coding detecting device according to claim 1 and 2, it is characterized in that the circuit component on described microcontroller circuit plate (5) and the signal deteching circuit plate (1), comprise the microprocessor U on the microcontroller circuit plate (5)
5, VISIBLE LIGHT EMISSION pipe N
1, N
2, N
3, N
4, N
5, grouping light emitting diode U
2, U
3, U
4, reflect visible light receiving tube P
1, the three-terminal voltage-stabilizing chip U in the power circuit (6)
1The base stage of described VISIBLE LIGHT EMISSION pipe N1, N2, N3, N4, N5 respectively with microcontroller circuit plate (5) on microprocessor U
513 pin, 12 pin, 11 pin, 10 pin, 9 pin, 8 pin link to each other the microprocessor U on the base electrode of reflect visible light receiving tube P1 and the microcontroller circuit plate (5)
51 pin link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200273018U CN201413147Y (en) | 2009-06-09 | 2009-06-09 | Visible light transmitting and receiving direct reader optical encoding and detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200273018U CN201413147Y (en) | 2009-06-09 | 2009-06-09 | Visible light transmitting and receiving direct reader optical encoding and detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201413147Y true CN201413147Y (en) | 2010-02-24 |
Family
ID=41715030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200273018U Expired - Fee Related CN201413147Y (en) | 2009-06-09 | 2009-06-09 | Visible light transmitting and receiving direct reader optical encoding and detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201413147Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012238A (en) * | 2010-03-04 | 2011-04-13 | 罗文华 | Wireless remote transmission fiber reading meter |
| CN106352904A (en) * | 2016-09-19 | 2017-01-25 | 上海未来伙伴机器人有限公司 | Photoelectric encoder coded disc, photoelectric detection device, photoelectric encoder and robot |
| CN107484097A (en) * | 2017-10-10 | 2017-12-15 | 歌尔股份有限公司 | Earphone or so loudspeaker fool proof testing agency |
| CN110906961A (en) * | 2019-12-13 | 2020-03-24 | 上海索迪龙自动化有限公司 | Multi-emission source photoelectric sensor |
-
2009
- 2009-06-09 CN CN2009200273018U patent/CN201413147Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012238A (en) * | 2010-03-04 | 2011-04-13 | 罗文华 | Wireless remote transmission fiber reading meter |
| CN102012238B (en) * | 2010-03-04 | 2012-09-12 | 罗文华 | Wireless remote transmission fiber reading meter |
| CN106352904A (en) * | 2016-09-19 | 2017-01-25 | 上海未来伙伴机器人有限公司 | Photoelectric encoder coded disc, photoelectric detection device, photoelectric encoder and robot |
| CN107484097A (en) * | 2017-10-10 | 2017-12-15 | 歌尔股份有限公司 | Earphone or so loudspeaker fool proof testing agency |
| CN107484097B (en) * | 2017-10-10 | 2020-04-07 | 歌尔股份有限公司 | Fool-proof detection mechanism for left and right loudspeakers of earphone |
| CN110906961A (en) * | 2019-12-13 | 2020-03-24 | 上海索迪龙自动化有限公司 | Multi-emission source photoelectric sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20100609 |