CN201188192Y - Two-dimension lighting intensity aspect sensor - Google Patents
Two-dimension lighting intensity aspect sensor Download PDFInfo
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- CN201188192Y CN201188192Y CNU2008200865228U CN200820086522U CN201188192Y CN 201188192 Y CN201188192 Y CN 201188192Y CN U2008200865228 U CNU2008200865228 U CN U2008200865228U CN 200820086522 U CN200820086522 U CN 200820086522U CN 201188192 Y CN201188192 Y CN 201188192Y
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Abstract
The utility model discloses a two-dimensional light intensity orientation sensor which is mainly composed of light batteries B1 to B6, resistors R1 to R6, two symmetrical double-subtracting amplifiers, four comparators, two motors and a subtracting amplifier. The utility model has the advantages of small volume, low cost, reliable performance and convenient use, adopts the hardware of a complete operational amplifier, and has high stability; and light intensity and temperature compensation are adopted to detect the orientation of sunlight, thereby improving the stability and the sensitivity of the sensor.
Description
Technical field
The utility model relates to a kind of intelligent control technology, especially, relates to a kind of two-dimentional light intensity aspect sensor.
Background technology
Sunshine orientation tracking control unit is mainly based on automatically controlled at present, and previous Purely mechanical tracking mode is because precision is low, factors such as mechanism is complicated, very flexible have stopped using substantially.Adopt the sunshine orientation tracking control unit of automatically controlled mode, from principle two classes are arranged, a kind of is the clock tracing mode, and another kind is the sensor tracking mode.Adopt the clock tracing mode mostly to adopt pole axis mechanism, as astronomical observation instrument etc., but can there be cumulative departure in linear the tracking, needs manually to revise; When using on other follower, owing to be Nonlinear Tracking, controller adopts industrial computer mostly, and algorithm is also complicated, and cost can be very high; The employing sensor is followed the tracks of, and finished product sunshine aspect sensor does not appear in the newspapers as yet at present, all rests in the principle research, and the user normally selects some photo sensitive device to develop, develop, and influence does not appear in the newspapers to tracking accuracy for relevant temperature and light intensity variation; It is very complicated that the exigent solar energy concentration generating system of some tracking accuracies, controller are done, the control mode that adopts clock tracing to combine usually with the sensor tracking, and the high power consumption of cost is big, is not suitable for the common photovoltaic electroplax tracking Control that faces south.
The utility model content
The purpose of this utility model is at the deficiencies in the prior art, and a kind of two-dimentional light intensity aspect sensor is provided; The utility model is low in energy consumption, volume is little, cost is low, easy to use, stable and reliable for performance.
The purpose of this utility model is achieved through the following technical solutions: a kind of two-dimentional light intensity aspect sensor, it mainly is made up of photoelectric cell B1～B6, resistance R 1～R6,5,6,9,10, two motors 7,8 of 4,12, four comparers of two symmetric double subtracting amplifiers and subtracting amplifier 11; Wherein, the equal ground connection of the negative pole of described B1～B6; The positive pole of B1 is connected to the m input end of symmetric double subtracting amplifier 4 by signal wire, and the positive pole of B2 is connected to the n input end of symmetric double subtracting amplifier 4 by signal wire, and the end of R1 is directly connected to the m input end of symmetric double subtracting amplifier 4, other end ground connection; The end of R2 is directly connected to the n input end of symmetric double subtracting amplifier 4, other end ground connection; The positive pole of B3 is connected to the m input end of symmetric double subtracting amplifier 12 by signal wire, the positive pole of B4 is connected to the n input end of symmetric double subtracting amplifier 12 by signal wire, one end of resistance R 3 is directly connected to the m input end of symmetric double subtracting amplifier 12, other end ground connection; The end of R4 is directly connected to the n input end of symmetric double subtracting amplifier 12, other end ground connection; The positive pole of B5 is connected to the p input end of subtracting amplifier 11 by signal wire, the positive pole of B6 is connected to the o input end of subtracting amplifier 11 by signal wire, the end of R5 is directly connected to the o input end of subtracting amplifier 11, other end ground connection, the end of R6 is directly connected to the p input end of subtracting amplifier 11, other end ground connection; The output of A1 amplifier is connected to the normal phase input end of comparer 6 in the symmetric double subtracting amplifier 4, the output of A2 amplifier is connected to the normal phase input end of comparer 5 in the symmetric double subtracting amplifier 4, the output of A1 amplifier is connected to the normal phase input end of comparer 9 in the symmetric double subtracting amplifier 12, and the output of A2 amplifier is connected to the normal phase input end of comparer 10 in the symmetric double subtracting amplifier 12; The output terminal of subtracting amplifier 11 links to each other with the inverting input of comparer 5,6,9,10 respectively.The output of comparer 5 and comparer 6 links to each other with motor 7 respectively, and the output of comparer 9 and comparer 10 links to each other with motor 8 respectively.
The beneficial effects of the utility model are:
1, volume is little, cost is low, dependable performance, and is easy to use.
2, control circuit adopts the hardware circuit of putting for the national games, and stability is high.
3, the sunshine orientation detection adopts light intensity, temperature compensation thought, the stability, the sensitivity that have improved sensor.
Description of drawings
Fig. 1 is the sensor construction synoptic diagram of two-dimentional light intensity aspect sensor of the present utility model; Wherein, (a) being front view, (b) is vertical view.
Fig. 2 is the subtracting amplifier circuit diagram;
Fig. 3 is a symmetric double subtracting amplifier circuit diagram;
Fig. 4 is the schematic block circuit diagram of two-dimentional light intensity aspect sensor of the present utility model.
Among the figure, master reference 1, hard lead 2, secondary sensor 3, symmetric double subtracting amplifier 4,12, comparer 5,6,9,10, motor 7,8, subtracting amplifier 11.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing, it is more obvious that the purpose of this utility model and effect will become.
As shown in Figure 1, master reference 1 is made up of the last 5 photoelectric cell B1～B5 that are welded on a pcb board, wherein, B1～B4 photoelectric cell surrounds the terrace with edge shape, B1 photoelectric cell and B2 photoelectric cell angular range are 0～90 °, B3 photoelectric cell and B4 photoelectric cell angular range also are 0～90 °, and the B5 photoelectric cell is positioned at the top of terrace with edge, and the light-sensitive surface of B1～B5 all outwardly.Master reference 1 is used for the sensing in sunray orientation, and secondary sensor 3 is made up of the central authorities that the B6 photoelectric cell is welded on another piece pcb board, and secondary sensing 3 is used for light intensity, temperature compensation function.Master reference 1 and secondary sensor 3 connect to form sunray orientation sensor-based system by hard lead 2, and sunray orientation sensor-based system is installed on the equipment that needs to realize following the tracks of on the sunny side and with equipment and rotates.
Master reference 1 up, secondary sensor 3 below, for not influencing secondary sensor 3 reception environment diffuse reflection light intensity, both spacings of the secondary sensor of master reference 13 are not less than 1/2 of master reference 1 pcb board width; Master reference 1 only blocks the direct light above the secondary sensor 3 when operate as normal.
As shown in Figure 2, subtracting amplifier 11 of the present utility model mainly is made up of resistance R 7～R10 and operational amplifier A; The end of R7 links to each other with photoelectric cell B6 is anodal, and the other end links to each other with the operational amplifier A inverting input; The end of R8 links to each other with the operational amplifier A inverting input, and the other end links to each other with the output terminal of operational amplifier A; The end of R9 links to each other with photoelectric cell B5 is anodal, and the other end links to each other with the operational amplifier A normal phase input end; The end of R10 links to each other with the operational amplifier A normal phase input end, other end ground connection.The signal that B5 provides comprises the strong and diffusion light intensity of direct light, and the signal that B6 provides is only for the diffusion light intensity, and by subtracting amplifier 11 computings, output only is the direct light strong component, makes compensating signal in the system and uses.
As shown in Figure 3, symmetric double subtracting amplifier 4,12 of the present utility model mainly is made up of resistance R 12～R19 and operational amplifier A 1, A2; R12 links to each other with the end of R17, an input end m as the light intensity comparison signal, R14 links to each other with the end of R18, another input end n as the light intensity comparison signal, the other end of R12 links to each other with the inverting input of operational amplifier A 1, the end of R13 links to each other with operational amplifier A 1 inverting input, and the other end links to each other with the output terminal of operational amplifier A 1; The other end of R18 links to each other with the inverting input of operational amplifier A 2; The end of R19 links to each other with operational amplifier A 2 inverting inputs, and the other end links to each other with the output terminal of operational amplifier A 2; The other end of R14 links to each other with the normal phase input end of operational amplifier A 1, and the other end of R17 links to each other with the normal phase input end of operational amplifier A 2; The normal phase input end of R15 one termination operational amplifier A 1, other end ground connection; The normal phase input end of R16 one termination operational amplifier A 2, the other end is ground connection also.Export bearing signal when the m input end signal greater than n input end signal A1, the A2 signal is output as zero; Export bearing signal when the m input end signal less than n input end signal A2, the A1 signal is output as zero.
Fig. 4 shows the schematic block circuit diagram of two-dimentional light intensity aspect sensor of the present utility model, and sunray orientation sensor-based system B1～B6 photoelectric cell links to each other with control circuit by 7 core signal wires, and wherein 6 is signal wire, and one is the signal ground line.
The photronic negative pole of B1～B6 is connected with the signal ground of control circuit; The positive pole of B1 is connected to the m input end of symmetric double subtracting amplifier 4 by signal wire, and the positive pole of B2 is connected to the n input end of symmetric double subtracting amplifier 4 by signal wire, and the end of R1 is directly connected to the m input end of symmetric double subtracting amplifier 4, other end ground connection; The end of R2 is directly connected to the n input end of symmetric double subtracting amplifier 4, other end ground connection, the positive pole of B3 is connected to the m input end of symmetric double subtracting amplifier 12 by signal wire, the positive pole of B4 is connected to the n input end of symmetric double subtracting amplifier 12 by signal wire, the end of R3 is directly connected to the m input end of symmetric double subtracting amplifier 12, other end ground connection; The end of R4 is directly connected to the n input end of symmetric double subtracting amplifier 12, other end ground connection; The positive pole of B5 is connected to the p input end of subtracting amplifier 11 by signal wire, the positive pole of B6 is connected to the o input end of subtracting amplifier 11 by signal wire, the end of R5 is directly connected to the o input end of subtracting amplifier 11, other end ground connection, the end of R6 is directly connected to the p input end of subtracting amplifier 11, other end ground connection; The output of A1 amplifier is connected to the normal phase input end of comparer 6 in the symmetric double subtracting amplifier 4, the output of A2 amplifier is connected to the normal phase input end of comparer 5 in the symmetric double subtracting amplifier 4, the output of A1 amplifier is connected to the normal phase input end of comparer 9 in the symmetric double subtracting amplifier 12, and the output of A2 amplifier is connected to the normal phase input end of comparer 10 in the symmetric double subtracting amplifier 12; The output terminal of subtracting amplifier 11 links to each other with the inverting input of comparer 5,6,9,10 respectively, realizes the compensation of temperature and light intensity parameter, reduces temperature and light intensity and changes the light orientation tracking error that causes.The tracking mode of the motor 7 in the output decision X-axis orientation of comparer 5, comparer 6, the tracking mode of the output decision Y-axis azimuth-drive motor 8 of comparer 9, comparer 10, comparer 5 output noble potential comparers 6 output electronegative potential motors 7 are just changeing, 7 counter-rotatings of comparer 5 output electronegative potential comparers 6 output noble potential motors, noble potential all exported by comparer 5 comparers 6 or electronegative potential motor 7 does not change; The principle of work of the motor 8 in Y-axis orientation is identical with X-axis azimuth-drive motor 7, no longer repeats.
Motor 7,8 is the control motor that includes driving, relevant motor-drive circuit, and relevant speciality personnel all can solve, no longer explanation.
The foregoing description is used for the utility model of explaining; rather than the utility model limited; in the protection domain of spirit of the present utility model and claim, any modification and change to the utility model is made all fall into protection domain of the present utility model.
Claims (3)
1. two-dimentional light intensity aspect sensor, it is characterized in that, it is mainly by photoelectric cell B1～B6, resistance R 1～R6, two symmetric double subtracting amplifiers (4,12), and four comparers (5,6,9,10), two motors (7,8) and subtracting amplifier (11) are formed; Wherein, the equal ground connection of the negative pole of described B1～B6; The positive pole of B1 is connected to the m input end of symmetric double subtracting amplifier (4) by signal wire, the positive pole of B2 is connected to the n input end of symmetric double subtracting amplifier (4) by signal wire, the end of R1 is directly connected to the m input end of symmetric double subtracting amplifier (4), other end ground connection; The end of R2 is directly connected to the n input end of symmetric double subtracting amplifier (4), other end ground connection; The positive pole of B3 is connected to the m input end of symmetric double subtracting amplifier (12) by signal wire, the positive pole of B4 is connected to the n input end of symmetric double subtracting amplifier (12) by signal wire, one end of resistance R 3 is directly connected to the m input end of symmetric double subtracting amplifier (12), other end ground connection; The end of R4 is directly connected to the n input end of symmetric double subtracting amplifier (12), other end ground connection; The positive pole of B5 is connected to the p input end of subtracting amplifier (11) by signal wire, the positive pole of B6 is connected to the o input end of subtracting amplifier (11) by signal wire, the end of R5 is directly connected to the o input end of subtracting amplifier 11, other end ground connection, the end of R6 is directly connected to the p input end of subtracting amplifier (11), other end ground connection; The output of A1 amplifier is connected to the normal phase input end of comparer (6) in the symmetric double subtracting amplifier (4), the output of A2 amplifier is connected to the normal phase input end of comparer (5) in the symmetric double subtracting amplifier (4), the output of A1 amplifier is connected to the normal phase input end of comparer (9) in the symmetric double subtracting amplifier (12), and the output of A2 amplifier is connected to the normal phase input end of comparer (10) in the symmetric double subtracting amplifier (12); The output terminal of subtracting amplifier (11) links to each other with the inverting input of comparer (5,6,9,10) respectively; The output of comparer (5) and comparer (6) links to each other with motor (7) respectively, and the output of comparer (9) and comparer (10) links to each other with motor (8) respectively.
2. two-dimentional light intensity aspect sensor according to claim 1 is characterized in that described subtracting amplifier (11) mainly is made up of resistance R 7～R10 and operational amplifier A; The end of R7 is as the o input end of subtracting amplifier (11), and the other end links to each other with the inverting input of operational amplifier A; The end of R8 links to each other with the operational amplifier A inverting input, and the other end links to each other with the output terminal of operational amplifier A; The end of R9 is as the p input end of subtracting amplifier (11), and the other end links to each other with the normal phase input end of operational amplifier A; The end of R10 links to each other with the operational amplifier A normal phase input end, other end ground connection.
3. two-dimentional light intensity aspect sensor according to claim 1 is characterized in that, described symmetric double subtracting amplifier (4,12) mainly is made up of resistance R 12～R19 and operational amplifier A 1, A2; R12 links to each other with the end of R17, and as the m input end of two subtracting amplifiers (4,12), R14 links to each other with the end of R18, as two subtracting amplifiers (4,12) the n input end; The other end of R12 links to each other with the inverting input of operational amplifier A 1, and the end of R13 links to each other with the inverting input of operational amplifier A 1, and the other end links to each other with the output terminal of operational amplifier A 1; The other end of R18 links to each other with the inverting input of operational amplifier A 2; The end of R19 links to each other with the inverting input of operational amplifier A 2, and the other end links to each other with the output terminal of operational amplifier A 2; The other end of R14 links to each other with the normal phase input end of operational amplifier A 1, and the other end of R17 links to each other with the normal phase input end of operational amplifier A 2; The normal phase input end of R15 one termination operational amplifier A 1, other end ground connection; The normal phase input end of R16 one termination operational amplifier A 2, the other end is ground connection also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200865228U CN201188192Y (en) | 2008-04-30 | 2008-04-30 | Two-dimension lighting intensity aspect sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200865228U CN201188192Y (en) | 2008-04-30 | 2008-04-30 | Two-dimension lighting intensity aspect sensor |
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| Publication Number | Publication Date |
|---|---|
| CN201188192Y true CN201188192Y (en) | 2009-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200865228U Expired - Fee Related CN201188192Y (en) | 2008-04-30 | 2008-04-30 | Two-dimension lighting intensity aspect sensor |
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| Country | Link |
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| CN (1) | CN201188192Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564576A (en) * | 2010-12-17 | 2012-07-11 | 鸿富锦精密工业（深圳）有限公司 | Light intensity testing device |
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2008
- 2008-04-30 CN CNU2008200865228U patent/CN201188192Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564576A (en) * | 2010-12-17 | 2012-07-11 | 鸿富锦精密工业（深圳）有限公司 | Light intensity testing device |
| CN102564576B (en) * | 2010-12-17 | 2013-11-06 | 鸿富锦精密工业（深圳）有限公司 | Light intensity testing device |
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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: 20090128 Termination date: 20110430 |