CN105848338A - High precision realization method of common photosensitive sensor - Google Patents
High precision realization method of common photosensitive sensor Download PDFInfo
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- CN105848338A CN105848338A CN201610209061.8A CN201610209061A CN105848338A CN 105848338 A CN105848338 A CN 105848338A CN 201610209061 A CN201610209061 A CN 201610209061A CN 105848338 A CN105848338 A CN 105848338A
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- illuminance
- value
- led
- light sensor
- photosensitive sensor
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a high precision realization method of a common photosensitive sensor. A linearity calibration device of the photosensitive sensor is employed, and the linearity calibration device of the photosensitive sensor comprises an MCU micro controller, a PWM driving light modulation circuit, a photosensitive sensor voltage parameter detection circuit, an EEPROM memory, an LED driving circuit and an LED lamp. According to the method, self calibration on the photosensitive sensor is realized by utilizing linearity illuminance of a stepless light modulation LED lamp in the prior art, test cost of the photosensitive sensor can be greatly saved, moreover, illuminance triggering value consistency of automatic induction type LED lamps is further improved, and thereby better and higher quality of products is realized.
Description
Technical field
The present invention relates to a kind of method, a kind of done with high accuracy method of normal light dependent sensor.
Background technology
Due to the physical characteristic reason of the-art and material self, either light sensitive diode or photoconductive resistance, the linearity of their own is the most less desirable, and this makes in the design process of product, is extremely difficult to good coherence request standard.And the light sensor (photoconductive resistance or light sensitive diode) that currently high-volume uses in LED lamp all have employed and adds linear degree scope, or the method demarcated processes, and adds cost of labor the most largely.
Summary of the invention
It is an object of the invention to provide a kind of done with high accuracy method of normal light dependent sensor, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
nullA kind of done with high accuracy method of normal light dependent sensor，Use the property dimension calibrating installation of light sensor，The property dimension calibrating installation of light sensor includes MCU microcontroller、PWM drives light adjusting circuit、Light sensor voltage parameter testing circuit、Eeprom memory、LED drive circuit and LED，Utilize MCU microcontroller to produce PWM waveform and control LED from 0 to 100% bright process，LED is once demarcated from 0 to 100% bright corresponding illuminance，At this moment known calibration value is used，Signals collecting is carried out to light sensor by the adc circuit of MCU microcontroller，And it is analyzed record，Just a light sensor form corresponding with illuminance is obtained，When setting LED and must turn on light below certain illuminance，MCU microcontroller just can be real-time detection light sensor value，If be detected that value with record in value equal time，Just it is judged to that current illuminance is for determining value.
As the present invention further scheme: described known calibration value is demarcated by the following method: the first step: PWM value is demarcated from the illuminance of 0 to 100% corresponding LED；Second step: PWM value is carried out record from the light sensor parameter of 0 to 100% corresponding each step；3rd step: the illuminance value set is contrasted with the parameter recorded, is defined as the illuminance of correspondence during coupling.
Compared with prior art, the invention has the beneficial effects as follows: the inventive method uses the linear light illumination of existing non-pole light regulating LED self that light sensor is carried out self-alignment method, can greatly save the testing cost of light sensor, improve the sensing class LED concordance to illuminance trigger value automatically simultaneously, make product reach quality more preferable, higher.
Accompanying drawing explanation
Fig. 1 is the structure chart of the property dimension calibrating installation of the done with high accuracy method employing light sensor of normal light dependent sensor.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
nullRefer to Fig. 1，In the embodiment of the present invention，A kind of done with high accuracy method of normal light dependent sensor，Use the property dimension calibrating installation of light sensor，The property dimension calibrating installation of light sensor includes MCU microcontroller、PWM drives light adjusting circuit、Light sensor voltage parameter testing circuit、Eeprom memory、LED drive circuit and LED，Utilize MCU microcontroller to produce PWM waveform and control LED from 0 to 100% bright process，LED is once demarcated from 0 to 100% bright corresponding illuminance，At this moment known calibration value is used，Signals collecting is carried out to light sensor by the adc circuit of MCU microcontroller，And it is analyzed record，Just a light sensor form corresponding with illuminance is obtained，When setting LED and must turn on light below certain illuminance，MCU microcontroller just can be real-time detection light sensor value，If be detected that value with record in value equal time，Just it is judged to that current illuminance is for determining value；Described known calibration value is demarcated by the following method: the first step: PWM value is demarcated from the illuminance of 0 to 100% corresponding LED；Second step: PWM value is carried out record from the light sensor parameter of 0 to 100% corresponding each step；3rd step: the illuminance value set is contrasted with the parameter recorded, is defined as the illuminance of correspondence during coupling.
The inventive method uses the linear light illumination of existing non-pole light regulating LED self that light sensor is carried out self-alignment method, can greatly save the testing cost of light sensor, improve the sensing class LED concordance to illuminance trigger value automatically simultaneously, make product reach quality more preferable, higher.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing from the spirit or essential characteristics of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim included in the present invention.Should not be considered as limiting involved claim by any reference in claim.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should can also be formed, through appropriately combined, other embodiments that it will be appreciated by those skilled in the art that as an entirety, the technical scheme in each embodiment by those skilled in the art.
Claims (2)
- null1. the done with high accuracy method of a normal light dependent sensor，It is characterized in that，Use the property dimension calibrating installation of light sensor，The property dimension calibrating installation of light sensor includes MCU microcontroller、PWM drives light adjusting circuit、Light sensor voltage parameter testing circuit、Eeprom memory、LED drive circuit and LED，Utilize MCU microcontroller to produce PWM waveform and control LED from 0 to 100% bright process，LED is once demarcated from 0 to 100% bright corresponding illuminance，At this moment known calibration value is used，Signals collecting is carried out to light sensor by the adc circuit of MCU microcontroller，And it is analyzed record，Just a light sensor form corresponding with illuminance is obtained，When setting LED and must turn on light below certain illuminance，MCU microcontroller just can be real-time detection light sensor value，If be detected that value with record in value equal time，Just it is judged to that current illuminance is for determining value.
- The done with high accuracy method of normal light dependent sensor the most according to claim 1, it is characterised in that described known calibration value is demarcated by the following method: the first step: PWM value is demarcated from the illuminance of 0 to 100% corresponding LED；Second step: PWM value is carried out record from the light sensor parameter of 0 to 100% corresponding each step；3rd step: the illuminance value set is contrasted with the parameter recorded, is defined as the illuminance of correspondence during coupling.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610209061.8A CN105848338B (en) | 2016-04-06 | 2016-04-06 | A kind of done with high accuracy method of common light sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610209061.8A CN105848338B (en) | 2016-04-06 | 2016-04-06 | A kind of done with high accuracy method of common light sensor |
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| CN105848338A true CN105848338A (en) | 2016-08-10 |
| CN105848338B CN105848338B (en) | 2017-10-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110708413A (en) * | 2019-09-17 | 2020-01-17 | 江苏唯侓机器人科技有限公司 | Low light test box of cell-phone |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109164216A (en) * | 2018-10-08 | 2019-01-08 | 重庆市方腾科技有限公司 | A kind of methane transducer and zero point compensation method of band output compensation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202750279U (en) * | 2011-06-17 | 2013-02-20 | Rab照明设备公司 | LED drive circuit controlled by photoelectric tube |
| CN103486475A (en) * | 2013-09-27 | 2014-01-01 | 无锡商业职业技术学院 | Luminance-adjustable LED lamp |
| CN204104167U (en) * | 2014-06-09 | 2015-01-14 | 电子科技大学中山学院 | Led lighting controller |
| CN105122947A (en) * | 2013-04-19 | 2015-12-02 | 皇家飞利浦有限公司 | Calibrating operation of a lighting device |
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2016
- 2016-04-06 CN CN201610209061.8A patent/CN105848338B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202750279U (en) * | 2011-06-17 | 2013-02-20 | Rab照明设备公司 | LED drive circuit controlled by photoelectric tube |
| CN105122947A (en) * | 2013-04-19 | 2015-12-02 | 皇家飞利浦有限公司 | Calibrating operation of a lighting device |
| CN103486475A (en) * | 2013-09-27 | 2014-01-01 | 无锡商业职业技术学院 | Luminance-adjustable LED lamp |
| CN204104167U (en) * | 2014-06-09 | 2015-01-14 | 电子科技大学中山学院 | Led lighting controller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110708413A (en) * | 2019-09-17 | 2020-01-17 | 江苏唯侓机器人科技有限公司 | Low light test box of cell-phone |
| CN110708413B (en) * | 2019-09-17 | 2021-02-02 | 江苏唯侓机器人科技有限公司 | Low light test box of cell-phone |
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| CN105848338B (en) | 2017-10-31 |
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Effective date of registration: 20210621 Address after: 201203 Building 2, 439 Chunxiao Road, Pudong New Area pilot Free Trade Zone, Shanghai Patentee after: SHANGHAI SINOMCU MICROELECTRONICS Co.,Ltd. Address before: Room 345, block B, building 1, 977 Shangfeng Road, Pudong New Area, Shanghai, 200120 Patentee before: SHANGHAI SINO-SAGE INTELLIGENT TECHNOLOGY Co.,Ltd. |
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