CN103391670B - A kind of method of light-illuminating angle control system and adjustment light-illuminating angle - Google Patents
A kind of method of light-illuminating angle control system and adjustment light-illuminating angle Download PDFInfo
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- CN103391670B CN103391670B CN201310291806.6A CN201310291806A CN103391670B CN 103391670 B CN103391670 B CN 103391670B CN 201310291806 A CN201310291806 A CN 201310291806A CN 103391670 B CN103391670 B CN 103391670B
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Abstract
The invention provides a kind of light-illuminating angle control system, comprise the rotational structure be fixedly connected with lighting device, swept resistance module, control chip and the motor with removable tap; Described motor can drive rotational structure rotate thus lighting device irradiating angle is changed.The present invention controls revolution by control chip, motor control lighting device rotates and the light angle of lighting device is changed and then the voltage change that this angle changing value brings is fed back to control chip, makes lighting device can be adjusted to default light angle automatically by this degenerative ringing.The present invention also provides a kind of method and the automobile headlamp illuminator that regulate light-illuminating angle.
Description
Technical field
The invention belongs to lighting field, relate to a kind of light-illuminating angle control system, particularly a kind of method of light-illuminating angle control system and adjustment light-illuminating angle.
Background technology
Dimmer refers to the luminous flux changing light source in lighting device, a kind of electric device regulating luminance level.The general principle of dimmer is that the current effective value of change input light source is to reach the object of light modulation.
Existing dimmer all can only regulate the exposure intensity of light, but at some application scenarios, such as airport, megastore and when being used on automobile, and the irradiating angle of lighting device also needs to adjust thereupon.Such as, when dimmer uses on automobile, automobile is in turning process, and the irradiating angle of headlight also needs to adjust thereupon, otherwise during automobile turning, the range of exposures of headlight diminishes, and the range of observation affecting driver easily leads to traffic accident.
Summary of the invention
Technical problem to be solved by this invention is, for the deficiencies in the prior art, proposes a kind of light-illuminating angle control system.
The technical scheme that the present invention solves the employing of its technical problem proposes a kind of light-illuminating angle control system, and it comprises the rotational structure be fixedly connected with lighting device, swept resistance module, control chip and the motor with removable tap; Described motor can drive rotational structure rotate thus lighting device irradiating angle is changed, and described rotational structure drives the tap of swept resistance module move thus tap voltage size is changed; Described control chip receives described tap voltage and compares with preset voltage value, if tap voltage is greater than preset voltage value, exports control signal and motor is rotated forward, if tap voltage is less than preset voltage value, exports control signal and motor is reversed until described tap voltage equals preset voltage value.
Further; also comprise overvoltage and reverse protection module; described overvoltage protective module comprises overvoltage diode, electric capacity and backward diode; described overvoltage diode is connected with Capacitance parallel connection afterwards and backward diode is connected in series, overvoltage diode cathode, capacitance cathode and backward diode negative pole equipotential link.
Further, described swept resistance module comprises the first resistance, the second resistance, the 3rd resistance, the 4th resistance, swept resistance and detects resistance; Described swept resistance two ends are connected in series with the first resistance first end and the second resistance first end respectively, described swept resistance tap terminals is connected to and detects resistance one end, detect the resistance other end and be connected to the 3rd resistance first end and the 4th resistance first end respectively, described 3rd resistance second end is connected with the first resistance second end, and described 4th resistance second end is connected with the second resistance second end.
Further, described first resistance 30-50K ohm, second resistance 500-700 ohm, the 3rd resistance 1-2K ohm, the 4th resistance 30-50 ohm; The ratio of described detection resistance and swept resistance maximum value is 1/20 to 1/50.
The present invention also provides a kind of method regulating light-illuminating angle, and it comprises step:
Preset voltage value is obtained according to default irradiating angle;
Actual voltage value corresponding for actual for lighting device irradiating angle is passed to control chip;
Control chip compares actual voltage value and preset voltage value and controls revolution;
Revolution drives the rotation of lighting device irradiating angle to make actual voltage value change simultaneously;
When actual voltage value equals preset voltage value, motor stops operating.
Further, described actual voltage value is swept resistance tap voltage; Described lighting device irradiating angle rotates and drives the tap of swept resistance move thus tap voltage is changed.
The present invention also provides a kind of automobile headlamp illuminator, and it comprises above-mentioned light-illuminating angle control system.
The present invention controls revolution by control chip, motor control lighting device rotates and the light angle of lighting device is changed and then the voltage change that this angle changing value brings is fed back to control chip, makes lighting device can be adjusted to default light angle automatically by this degenerative ringing.When the present invention being applied to automobile headlamp illuminator, when automobile turning, the irradiating angle of headlight can adjust accordingly according to the angle of turn of automobile and the range of exposures of headlight can not be changed because of turning, the visual line of sight of driver is not changed, strengthens security performance.
Accompanying drawing explanation
Fig. 1 is the theory diagram of light-illuminating angle control system in a preferred embodiment of the present invention;
Fig. 2 is the circuit diagram of overvoltage and reverse protection module in a preferred embodiment of the present invention;
Fig. 3 is the circuit diagram of swept resistance module in a preferred embodiment of the present invention;
Fig. 4 is the schematic flow sheet of the method regulating light-illuminating angle in a preferred embodiment of the present invention.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
Please refer to Fig. 1, Fig. 1 is the theory diagram of light-illuminating angle control system of the present invention.In Fig. 1, light-illuminating angle control system comprises rotational structure 10, the swept resistance module 20 with removable tap 21, control chip 30 and the motor 40 that lighting device is fixedly connected with.
Described motor 40 can drive rotational structure 10 to rotate thus lighting device irradiating angle is changed, and described rotational structure 10 drives swept resistance module tap 21 to move thus tap voltage size is changed; Described control chip 30 receives described tap 21 magnitude of voltage and compares with preset voltage value, if tap 21 magnitude of voltage is greater than preset voltage value, exports control signal and motor 40 is rotated forward, if tap 21 magnitude of voltage is less than preset voltage value, exports control signal and motor 40 is reversed until described tap 21 magnitude of voltage equals preset voltage value.
In the present invention, control chip gathers tap voltage and controls revolution, and rotational structure controls to be subject to motor control again while that tap being moved thus forms a negative feedback circulation, makes rotating mechanism can more promptly automatically rotate to default light angle.
Please referring again to Fig. 1, in a preferred embodiment, the present invention also comprises oppositely and overvoltage protective module 10.Oppositely and overvoltage protective module 10 be connected to direct-current input power supplying module, for the protection of control chip, the voltage exporting control chip to can not be suddenlyd change or oppositely.Fig. 2 shows the circuit diagram of overvoltage and reverse protection module.
In Fig. 2; overvoltage and reverse protection module comprise overvoltage diode D1, electric capacity C1 and backward diode D2; described overvoltage diode D1 and electric capacity C1 is connected in parallel afterwards and backward diode D2 is connected in series, overvoltage diode D1 negative pole, electric capacity C1 positive pole and backward diode D2 negative pole equipotential link.When voltage reversal erroneous input, this reverse voltage stops by backward diode D2, and electric capacity C1 is used for filtering and afterflow, and overvoltage diode D2 is used for self breakdown thus burning voltage when electric voltage over press.
In a preferred embodiment, for the tap voltage making control chip obtain from the tap of swept resistance module is more accurate, swept resistance module by the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, swept resistance R5 and detect resistance R6 totally 6 resistive elements form.
As shown in Figure 3, swept resistance R5 two ends are connected in series with the first resistance R1 first end and the second resistance R2 first end respectively, swept resistance R5 tap terminals is connected to and detects resistance R6 one end, detect the resistance R6 other end and be connected to the 3rd resistance R3 first end and the 4th resistance R4 first end respectively, 3rd resistance R3 second end is connected with the first resistance R1 second end, and the 4th resistance R4 second end is connected with the second resistance R2 second end.
When swept resistance R5 tap is moved, flowing through the current value detecting resistance R6 and change thereupon, making current value be converted into tap voltage by detecting resistance R6.First resistance to the different resistance of the 4th resistance choose swept resistance tap is moved time flow detection resistance the change of current value more responsive, small curent change all can be detected thus make the precision of rotating mechanism rotational angle more accurate.
More preferably, learn after great many of experiments, when the value of R1-R6 is following, the current precision that detection resistance detection arrives is the most accurate, the angle control precision of rotating mechanism can ensure within 1 °: state first resistance 30-50K ohm, second resistance 500-700 ohm, the 3rd resistance 1-2K ohm, the 4th resistance 30-50 ohm; The ratio of described detection resistance and swept resistance maximum value is 1/20 to 1/50.
The present invention also provides a kind of method regulating light-illuminating angle, and its schematic flow sheet as shown in Figure 4.In Fig. 4, the method for light-illuminating angle is regulated to comprise step:
Preset voltage value is obtained according to default irradiating angle;
Actual voltage value corresponding for actual for lighting device irradiating angle is passed to control chip;
Control chip compares actual voltage value and preset voltage value and controls revolution;
Revolution drives the rotation of lighting device irradiating angle to make actual voltage value change simultaneously;
When actual voltage value equals preset voltage value, motor stops operating.
Preferably, actual voltage value is swept resistance tap voltage; Described lighting device irradiating angle rotates and drives the tap of swept resistance move thus tap voltage is changed.
The present invention also provides a kind of automobile headlamp illuminator, and it comprises above-mentioned light-illuminating angle control system.When motor turning, the irradiating angle of headlight can adjust accordingly according to the angle of turn of automobile and the range of exposures of headlight can not be changed because of turning, the visual line of sight of driver is not changed, strengthens security performance.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (3)
1. a light-illuminating angle control system, is characterized in that: comprise the rotational structure be fixedly connected with lighting device, swept resistance module, control chip and the motor with removable tap; Described motor can drive rotational structure rotate thus lighting device irradiating angle is changed, and described rotational structure drives the tap of swept resistance module move thus tap voltage size is changed; Described control chip receives described tap voltage and compares with preset voltage value, if tap voltage is greater than preset voltage value, exports control signal and motor is rotated forward, if tap voltage is less than preset voltage value, exports control signal and motor is reversed until described tap voltage equals preset voltage value; Described swept resistance module comprises the first resistance, the second resistance, the 3rd resistance, the 4th resistance, swept resistance and detects resistance; Described swept resistance two ends are connected in series with the first resistance first end and the second resistance first end respectively, described swept resistance tap terminals is connected to and detects resistance one end, detect the resistance other end and be connected to the 3rd resistance first end and the 4th resistance first end respectively, described 3rd resistance second end is connected with the first resistance second end, and described 4th resistance second end is connected with the second resistance second end; Described first resistance 30-50K ohm, second resistance 500-700 ohm, the 3rd resistance 1-2K ohm, the 4th resistance 30-50 ohm; The ratio of described detection resistance and swept resistance maximum value is 1/20 to 1/50; Also comprise overvoltage and reverse protection module; described overvoltage protective module comprises overvoltage diode, electric capacity and backward diode; described overvoltage diode is connected with Capacitance parallel connection afterwards and backward diode is connected in series, overvoltage diode cathode, capacitance cathode and backward diode negative pole equipotential link.
2. regulate a method for light-illuminating angle, it comprises step:
Preset voltage value is obtained according to default irradiating angle;
Actual voltage value corresponding for actual for lighting device irradiating angle is passed to control chip;
Control chip compares actual voltage value and preset voltage value and controls revolution;
Revolution drives the rotation of lighting device irradiating angle to make actual voltage value change simultaneously;
When actual voltage value equals preset voltage value, motor stops operating;
Described swept resistance module comprises the first resistance, the second resistance, the 3rd resistance, the 4th resistance, swept resistance and detects resistance; Described swept resistance two ends are connected in series with the first resistance first end and the second resistance first end respectively, described swept resistance tap terminals is connected to and detects resistance one end, detect the resistance other end and be connected to the 3rd resistance first end and the 4th resistance first end respectively, described 3rd resistance second end is connected with the first resistance second end, and described 4th resistance second end is connected with the second resistance second end; Described first resistance 30-50K ohm, second resistance 500-700 ohm, the 3rd resistance 1-2K ohm, the 4th resistance 30-50 ohm; The ratio of described detection resistance and swept resistance maximum value is 1/20 to 1/50; Described actual voltage value is swept resistance tap voltage; Described lighting device irradiating angle rotates and drives the tap of swept resistance move thus tap voltage is changed.
3. an automobile headlamp illuminator, it comprises light-illuminating angle control system according to claim 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310291806.6A CN103391670B (en) | 2013-07-10 | 2013-07-10 | A kind of method of light-illuminating angle control system and adjustment light-illuminating angle |
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| CN201310291806.6A CN103391670B (en) | 2013-07-10 | 2013-07-10 | A kind of method of light-illuminating angle control system and adjustment light-illuminating angle |
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| CN103391670A CN103391670A (en) | 2013-11-13 |
| CN103391670B true CN103391670B (en) | 2015-09-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105916273B (en) * | 2016-05-23 | 2019-02-19 | 珠海格力电器股份有限公司 | Light control method and device and household appliance |
| CN111031642B (en) * | 2019-10-31 | 2022-10-14 | 惠州市德赛西威汽车电子股份有限公司 | Control circuit and control system for adjusting angle of car lamp |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1416035A (en) * | 2001-09-04 | 2003-05-07 | 中华研升科技股份有限公司 | Device and method for automatic controlling visual angle in monitoring equipment for vehicle |
| CN2673735Y (en) * | 2003-12-19 | 2005-01-26 | 王维德 | Novel angle controller of automobile rearview mirror |
| CN1915711A (en) * | 2005-08-15 | 2007-02-21 | 堤维西交通工业股份有限公司 | Method for driving rotator of car light |
| CN201750397U (en) * | 2009-12-18 | 2011-02-16 | 上海富伸光电有限公司 | Slow-start AC motor driving device |
| CN102954439A (en) * | 2011-12-22 | 2013-03-06 | 广州彩熠灯光有限公司 | Color disc for stage lamps, lamp with color disc, and method for controlling lamp |
| CN202764812U (en) * | 2012-09-19 | 2013-03-06 | 宁波市富来电子科技有限公司 | Dimming device of headlamp of automobile |
-
2013
- 2013-07-10 CN CN201310291806.6A patent/CN103391670B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1416035A (en) * | 2001-09-04 | 2003-05-07 | 中华研升科技股份有限公司 | Device and method for automatic controlling visual angle in monitoring equipment for vehicle |
| CN2673735Y (en) * | 2003-12-19 | 2005-01-26 | 王维德 | Novel angle controller of automobile rearview mirror |
| CN1915711A (en) * | 2005-08-15 | 2007-02-21 | 堤维西交通工业股份有限公司 | Method for driving rotator of car light |
| CN201750397U (en) * | 2009-12-18 | 2011-02-16 | 上海富伸光电有限公司 | Slow-start AC motor driving device |
| CN102954439A (en) * | 2011-12-22 | 2013-03-06 | 广州彩熠灯光有限公司 | Color disc for stage lamps, lamp with color disc, and method for controlling lamp |
| CN202764812U (en) * | 2012-09-19 | 2013-03-06 | 宁波市富来电子科技有限公司 | Dimming device of headlamp of automobile |
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