CN103391670B - A method for the light irradiation angle of the light control system and the irradiation angle adjustment - Google Patents

A method for the light irradiation angle of the light control system and the irradiation angle adjustment Download PDF

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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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resistor
terminal
tap
irradiation angle
voltage
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CN201310291806.6A
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CN103391670A (en
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盛道学
王正斌
袁光辉
高社科
刘玲
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宁波市富来电子科技有限公司
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Abstract

本发明提供一种灯光照射角度控制系统,包括与照明装置固定连接的转动结构、具有可移动抽头的滑动电阻模块、控制芯片以及马达;所述马达可带动转动结构转动从而使得照明装置照射角度发生变化。 The present invention provides a light irradiation angle control system, comprising a rotating structure fixedly connected to the lighting apparatus, having a movable tap sliding resistance module, and a motor control chip; the motor can drive the rotation of the rotatable structure so that the irradiation angle of the illumination apparatus occurs Variety. 本发明通过控制芯片控制马达转动,马达控制照明装置转动使得照明装置的照明角度发生变化进而将该角度变化值带来的电压变化值反馈至控制芯片,通过该负反馈的循环作用使得照明装置能自动的调节至预设照明角度。 The present invention controls rotation of the motor control chip, the motor control means for rotating the lighting illumination angle such that the lighting device is changed and thus bring the voltage change value of the angle changes back to the control chip through the effect of a negative feedback loop so that the lighting means can automatically adjusted to a predetermined illumination angle. 本发明还提供一种调节灯光照射角度的方法以及汽车前灯照明系统。 The present invention also provides a method of adjusting the light irradiation angle of the illumination system and car headlights.

Description

一种灯光照射角度控制系统及调节灯光照射角度的方法 A method for the light irradiation angle of the light control system and the irradiation angle adjustment

技术领域 FIELD

[0001] 本发明属于照明领域,涉及一种灯光照射角度控制系统,特别是一种灯光照射角度控制系统及调节灯光照射角度的方法。 [0001] The present invention belongs to the field of lighting, relates to a method of light irradiation angle control system, particularly to a lighting control system and adjusting the irradiation angle of the light irradiation angle.

背景技术 Background technique

[0002] 调光器是指改变照明装置中光源的光通量、调节亮度水平的一种电气装置。 [0002] The dimmer means changing the luminous flux of the illumination light source device, adjust the brightness level of an electrical device. 调光器的基本原理是改变输入光源的电流有效值以达到调光的目的。 The basic principle is to change the dimmer to achieve dimming current rms purpose input source.

[0003] 现有的调光器均只能调节光的照射强度,然而在某些应用场景,例如机场、大型商场以及使用在汽车上时,照明装置的照射角度也需要随之调整。 [0003] conventional dimmers are only adjusting the irradiation intensity of light, however in certain scenarios, such as airports, shopping malls, and used in the car, the irradiation angle of the lighting apparatus also needs to be adjusted. 例如调光器在汽车上使用时,汽车在转弯过程中,前灯的照射角度也需要随之调整,否则汽车转弯时,前灯的照射范围变小,影响司机的观察范围容易酿成车祸。 E.g. dimmer used in the car, the car during cornering, the irradiation angle of the headlight also needs to be adjusted, or the car is turning, the irradiation range of the headlight is reduced, the influence of the driver viewing range easily lead to accidents.

发明内容 SUMMARY

[0004] 本发明所要解决的技术问题在于,针对现有技术的不足,提出一种灯光照射角度控制系统。 [0004] The present invention solves the technical problem for the deficiencies of the prior art, to provide a light irradiation angle control system.

[0005] 本发明解决其技术问题采用的技术方案是提出一种灯光照射角度控制系统,其包括与照明装置固定连接的转动结构、具有可移动抽头的滑动电阻模块、控制芯片以及马达;所述马达可带动转动结构转动从而使得照明装置照射角度发生变化,所述转动结构带动滑动电阻模块抽头移动从而使得抽头电压值大小发生变化;所述控制芯片接收所述抽头电压值并与预设电压值比较,若抽头电压值大于预设电压值则输出控制信号使得马达正转,若抽头电压值小于预设电压值则输出控制信号使得马达反转直至所述抽头电压值等于预设电压值。 [0005] Solution to the technical problems of the present invention is to provide a light irradiation angle control system, comprising a rotating structure fixedly connected to the lighting apparatus, having a movable tap sliding resistance module, and a motor control chip; the the motor may be driven so that the rotatable structure rotates the irradiation angle of the illumination apparatus is changed, the sliding resistance module driven rotating structure so that the movement of the tap change the size of the tap voltage value; the control chip receives the tap voltage with a preset voltage value, and comparison, if the tap voltage is greater than a preset voltage value of the output control signal such that the normal rotation of the motor, when the tap voltage is less than the preset voltage value of the output control signal such that the motor voltage is reversed until the tap value is equal to the predetermined voltage level.

[0006] 进一步地,还包括过压和反向保护模块,所述过压保护模块包括过压二极管、电容以及反向二极管,所述过压二极管与电容并联连接后与反向二极管串联连接,过压二极管负极、电容正极以及反向二极管负极等电位连接。 [0006] Furthermore, further comprising a reverse and overvoltage protection module, the overvoltage protection module comprises an overpressure diode, a capacitor and a reverse diode, the diode and capacitor in parallel with the overpressure connection with reverse diode connected in series, overvoltage cathode of the diode, the capacitance of the positive electrode and the reverse diode cathode equipotential connection.

[0007] 进一步地,所述滑动电阻模块包括第一电阻、第二电阻、第三电阻、第四电阻、滑动电阻以及检测电阻;所述滑动电阻两端分别与第一电阻第一端和第二电阻第一端串联连接,所述滑动电阻抽头端连接至检测电阻一端,检测电阻另一端分别连接至第三电阻第一端和第四电阻第一端,所述第三电阻第二端与第一电阻第二端连接,所述第四电阻第二端与第二电阻第二端连接。 [0007] Further, the slide module comprises a first resistor, the second resistor, a third resistor, a fourth resistor, and the sliding resistance of the sense resistor; ends, respectively, the sliding resistance of the first resistor and a first end a first resistor connected in series with two ends, one end of the slide resistor is connected to the tap of the sensing resistor, the other end of the detection resistor respectively connected to a first terminal of a third resistor and a first terminal of a fourth resistor, a second terminal of the third resistor a first resistor connected to a second terminal, the second terminal of the fourth resistor is connected to a second terminal of the second resistor.

[0008] 进一步地,所述第一电阻阻值30-50K欧姆,第二电阻阻值500-700欧姆,第三电阻阻值1-2K欧姆,第四电阻阻值30-50欧姆;所述检测电阻阻值与滑动电阻最大阻值的比值为1/20 至1/50。 [0008] Further, the first ohmic resistor 30-50K, 500-700 a second ohmic resistor, a third resistor 1-2K ohms, fourth resistor 30-50 ohms; the ratio detecting resistor with the sliding resistance of the resistor is maximum 1/20 to 1/50.

[0009] 本发明还提供一种调节灯光照射角度的方法,其包括步骤: [0009] The present invention further provides a method of adjusting an irradiation angle of light, which comprises the steps of:

[0010] 根据预设照射角度得到预设电压值; [0010] to give a predetermined voltage level according to a preset irradiation angle;

[0011] 将照明装置实际照射角度对应的实际电压值传递至控制芯片; [0011] The actual voltage actual irradiation angle of the illumination device is transmitted to a control value corresponding to the chip;

[0012] 控制芯片比较实际电压值与预设电压值并控制马达转动; [0012] The control chip compares the actual voltage value with a preset voltage value and controls the rotation of the motor;

[0013]马达转动带动照明装置照射角度转动同时使得实际电压值变化; [0013] The motor rotates to drive the illumination means simultaneously rotated so that the irradiation angle of the actual voltage variation;

[0014] 实际电压值等于预设电压值时马达停止转动。 When [0014] The actual voltage is equal to a preset voltage value of the motor is stopped.

[0015] 进一步地,所述实际电压值为滑动电阻抽头电压值;所述照明装置照射角度转动带动滑动电阻的抽头移动从而使得抽头电压值变化。 [0015] Further, the sliding resistance of the actual voltage value is a voltage value of the tap; irradiation angle of the illumination drive means for rotating the sliding movement of the tap so that a tap voltage resistance value variation.

[0016] 本发明还提供一种汽车前灯照明系统,其包括上述灯光照射角度控制系统。 [0016] The present invention further provides a vehicle headlamp lighting system, which includes the above light irradiation angle control system.

[0017] 本发明通过控制芯片控制马达转动,马达控制照明装置转动使得照明装置的照明角度发生变化进而将该角度变化值带来的电压变化值反馈至控制芯片,通过该负反馈的循环作用使得照明装置能自动的调节至预设照明角度。 [0017] The present invention, by controlling rotation of the motor control chip, the motor control means for rotating the lighting illumination angle such that the lighting device is changed and thus bring the voltage change value of the angle changes back to the control chip, by the action of the negative feedback loop such that lighting means can automatically adjust to a preset illumination angle. 将本发明应用至汽车前灯照明系统时,当汽车转弯时,前灯的照射角度能够根据汽车的转弯角度进行相应调整使得前灯的照射范围不会因为转弯而发生变化,使得司机的视线范围不发生变化,加强了安全性能。 When the present invention is applied to a car headlight lighting system, when the vehicle turns, the irradiation angle of the headlight according to the turning angle of the car can be adjusted so that an irradiation range corresponding to the headlights turn will not vary, so that the driver's line of sight It does not change, enhanced security performance.

附图说明 BRIEF DESCRIPTION

[0018] 图1为本发明一较佳实施例中灯光照射角度控制系统的原理框图; [0018] Figure 1 a principle block diagram of the light irradiation angle of the control system of the preferred embodiment of the present invention;

[0019] 图2为本发明一较佳实施例中过压和反向保护模块的电路示意图; [0019] Fig 2 a schematic diagram of a circuit and reverse overvoltage protection module in the preferred embodiment of the present invention;

[0020] 图3为本发明一较佳实施例中滑动电阻模块的电路示意图; [0020] FIG. 3 is a circuit diagram of the slide resistance module in a preferred embodiment of the present embodiment of the invention;

[0021] 图4为本发明一较佳实施例中调节灯光照射角度的方法的流程示意图。 [0021] FIG. 4 schematic flowchart of a method of adjusting the light irradiation angle in the preferred embodiment embodiment of the present invention.

具体实施方式 Detailed ways

[0022] 以下是本发明的具体实施例并结合附图,对本发明的技术方案作进一步的描述,但本发明并不限于这些实施例。 [0022] The following are examples of specific embodiments of the present invention taken in conjunction with the accompanying drawings, technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0023] 请参照图1,图1为本发明灯光照射角度控制系统的原理框图。 [0023] Referring to FIG 1, the light irradiation angle control block diagram of the system of FIG. 1 of the present invention. 图1中,灯光照射角度控制系统包括照明装置固定连接的转动结构10、具有可移动抽头21的滑动电阻模块20、控制芯片30以及马达40。 In FIG 1, the light irradiation angle control system comprises a rotatable structure 10 fixedly connected to the lighting apparatus, having a movable tap 20 sliding resistance module 21, control chip 30, and a motor 40.

[0024] 所述马达40可带动转动结构10转动从而使得照明装置照射角度发生变化,所述转动结构10带动滑动电阻模块抽头21移动从而使得抽头电压值大小发生变化;所述控制芯片30接收所述抽头21电压值并与预设电压值比较,若抽头21电压值大于预设电压值则输出控制信号使得马达40正转,若抽头21电压值小于预设电压值则输出控制信号使得马达40反转直至所述抽头21电压值等于预设电压值。 Rotated 10 [0024] The motor 40 can drive the rotatable structure so that the irradiation angle of the illumination apparatus is changed, the rotating structure 10 drives the sliding resistance module 21 is moved so that the tap-tap voltage magnitude changes; the control chip 30 receives tap and said voltage value 21 is compared with a preset voltage value, when the voltage tap 21 is greater than a preset voltage value of the output control signal such that the normal rotation of the motor 40, 21 when the tap voltage is less than the preset voltage value of the output control signal such that the motor 40 inverting tap 21 until the voltage value is equal to a preset voltage value.

[0025] 本发明中,控制芯片采集抽头电压值并控制马达转动,转动结构控制抽头移动同时又受到马达控制从而形成一个负反馈循环,使得转动机构能较迅速地自动转动至预设照明角度。 [0025] In the present invention, the control chip collecting tap voltage and controls rotation of the motor, the rotation movement of the structure while controlling the tap controlled by a motor so as to form a negative feedback loop, so that the automatic rotation mechanism can be quickly rotated to a preset angle of illumination more.

[0026] 请再次参照图1,在一优选实施例中,本发明还包括反向和过压保护模块10。 [0026] Referring again to FIG. 1, in a preferred embodiment, the present invention further comprises a reverse and overvoltage protection module 10. 反向和过压保护模块10连接至直流输入电源模块,用于保护控制芯片,使得输出至控制芯片的电压不会突变或者反向。 Reversal and overvoltage protection module 10 is connected to the DC power supply of, for protecting the control chip, such that the output voltage to the control chip or not reverse mutation. 图2示出了过压和反向保护模块的电路示意图。 Figure 2 shows a circuit schematic overvoltage and reverse protection module.

[0027] 图2中,过压和反向保护模块包括过压二极管D1、电容Cl以及反向二极管D2,所述过压二极管Dl与电容Cl并联连接后与反向二极管D2串联连接,过压二极管Dl负极、电容Cl正极以及反向二极管D2负极等电位连接。 In [0027] FIG 2, overvoltage and reverse overvoltage protection module comprises a diode D1, a reverse diode D2 and capacitor Cl, diode Dl and the voltage of the capacitor Cl in parallel connection through the reverse diode D2 connected in series, the overvoltage cathode diode Dl, capacitor Cl and the cathode of diode D2 reverse-like negative electrode potential. 当电压反向误输入时,反向二极管D2将该反向电压阻止,电容Cl用于过滤和续流,过压二极管D2用于当电压过压时自身被击穿从而稳定电压。 When erroneous input voltage is reversed, the reverse voltage of the reverse blocking diode D2, the capacitor Cl for filtering and freewheeling, overvoltage breakdown diode D2 for itself so that a stable voltage when the voltage of the overvoltage.

[0028] 在一优选实施例中,为使得控制芯片从滑动电阻模块抽头获取的抽头电压值更为精确,滑动电阻模块由第一电阻R1、第二电阻R2、第三电阻R3、第四电阻R4、滑动电阻R5以及检测电阻R6共6个电阻元件构成。 [0028] In a preferred embodiment, the control chip such as the sliding resistance values ​​of the tap voltage tap acquisition module more precise, the sliding resistance module by a first resistor R1, second resistor R2, a third resistor R3, a fourth resistor R4, R5, and sliding resistance of 6 detection resistor R6 resistor elements.

[0029] 如图3所示,滑动电阻R5两端分别与第一电阻Rl第一端和第二电阻R2第一端串联连接,滑动电阻R5抽头端连接至检测电阻R6 —端,检测电阻R6另一端分别连接至第三电阻R3第一端和第四电阻R4第一端,第三电阻R3第二端与第一电阻Rl第二端连接,第四电阻R4第二端与第二电阻R2第二端连接。 [0029] 3, sliding across the resistor R5 is connected in series with a first end and a first terminal of a second resistor R2 connected to a first resistor Rl, a sliding tap of the resistor R5 is connected to the sense resistor R6 - end of the detection resistor R6 and the other end connected to the first end of the fourth resistor R4 and the first end of the third resistor R3, a second terminal of the third resistor R3 is connected to a second terminal of the first resistor Rl, a second end of the fourth resistor R4 and the second resistor R2 second end.

[0030] 当滑动电阻R5抽头移动时,流过检测电阻R6的电流值随之发生变化,通过检测电阻R6使得电流值被转换为抽头电压值。 [0030] When the sliding movement of the tap resistor R5, current value flowing through the detection resistor R6 will be changed, so that the current through the sense resistor R6 tap value is converted into a voltage value. 第一电阻至第四电阻不同阻值的选取使得滑动电阻抽头移动时流动检测电阻的电流值的变化更为敏感,微小的电流变化均能够被检测到从而使得转动机构转动角度的精度更为精确。 First resistor to select different resistance values ​​so that the sliding resistance of the fourth resistor to the tap moves more sensitive to changes in the value of current flowing in the detection resistor, current changes are small can be detected so that the accuracy of the rotation angle of the rotation mechanism more precise .

[0031] 更优选地,经过大量实验后得知,R1-R6的取值如下时,检测电阻检测到的电流精度最为精确,转动机构的角度控制精度能够保证在1°以内:述第一电阻阻值30-50K欧姆,第二电阻阻值500-700欧姆,第三电阻阻值1-2K欧姆,第四电阻阻值30-50欧姆;所述检测电阻阻值与滑动电阻最大阻值的比值为1/20至1/50。 [0031] More preferably, after a lot of experiments that, when R1-R6 of the following values, the detected current detecting resistor most accurate precision, the rotation angle of the control mechanism to ensure accuracy within 1 °: said first resistor 30-50K ohmic resistance of the second resistor 500-700 ohms, the third resistor 1-2K ohms, fourth resistor 30-50 ohms; detecting resistor and the maximum sliding resistance of the resistor ratio of 1/20 to 1/50.

[0032] 本发明还提供一种调节灯光照射角度的方法,其流程示意图如图4所示。 [0032] The present invention further provides a method of adjusting an irradiation angle of the light, which is a schematic flow chart shown in Figure 4. 图4中,调节灯光照射角度的方法包括步骤: In FIG. 4, the light irradiation angle adjusting method comprising the steps of:

[0033] 根据预设照射角度得到预设电压值; [0033] to give a predetermined voltage level according to a preset irradiation angle;

[0034] 将照明装置实际照射角度对应的实际电压值传递至控制芯片; [0034] The actual voltage actual irradiation angle of the illumination device is transmitted to a control value corresponding to the chip;

[0035] 控制芯片比较实际电压值与预设电压值并控制马达转动; [0035] The control chip compares the actual voltage value with a preset voltage value and controls the rotation of the motor;

[0036]马达转动带动照明装置照射角度转动同时使得实际电压值变化; [0036] The motor rotates to drive the illumination means simultaneously rotated so that the irradiation angle of the actual voltage variation;

[0037] 实际电压值等于预设电压值时马达停止转动。 When [0037] The actual voltage is equal to a preset voltage value of the motor is stopped.

[0038] 优选地,实际电压值为滑动电阻抽头电压值;所述照明装置照射角度转动带动滑动电阻的抽头移动从而使得抽头电压值变化。 [0038] Preferably, the sliding resistance value of the actual voltage value of the voltage tap; irradiation angle of the illumination drive means for rotating the sliding movement of the tap so that a tap voltage resistance value variation.

[0039] 本发明还提供一种汽车前灯照明系统,其包括上述灯光照射角度控制系统。 [0039] The present invention further provides a vehicle headlamp lighting system, which includes the above light irradiation angle control system. 当汽车转向时,前灯的照射角度能够根据汽车的转弯角度进行相应调整使得前灯的照射范围不会因为转弯而发生变化,使得司机的视线范围不发生变化,加强了安全性能。 When steering, the irradiation angle of the headlight according to the turning angle of the car can be adjusted so that an irradiation range corresponding to the headlights turn will not vary, so that the driver's line of sight does not change, enhance security.

[0040] 本文中所描述的具体实施例仅仅是对本发明精神作举例说明。 Specific Example [0040] described herein is merely illustrative for spirit of the invention. 本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代,但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。 Those skilled in the art of the present invention can be made to the specific embodiments described various modifications or additions, or a similar alternative embodiment, but without departing from the spirit of the invention or exceed defined in the appended claims range.

Claims (3)

1.一种灯光照射角度控制系统,其特征在于:包括与照明装置固定连接的转动结构、具有可移动抽头的滑动电阻模块、控制芯片以及马达;所述马达可带动转动结构转动从而使得照明装置照射角度发生变化,所述转动结构带动滑动电阻模块抽头移动从而使得抽头电压值大小发生变化;所述控制芯片接收所述抽头电压值并与预设电压值比较,若抽头电压值大于预设电压值则输出控制信号使得马达正转,若抽头电压值小于预设电压值则输出控制信号使得马达反转直至所述抽头电压值等于预设电压值;所述滑动电阻模块包括第一电阻、第二电阻、第三电阻、第四电阻、滑动电阻以及检测电阻;所述滑动电阻两端分别与第一电阻第一端和第二电阻第一端串联连接,所述滑动电阻抽头端连接至检测电阻一端,检测电阻另一端分别连接至第三电阻第一端和第四电 An irradiation angle of the light control system, characterized by: a pivot structure fixedly connected to the lighting apparatus, having a movable tap sliding resistance module, and a motor control chip; the motor can drive the rotation of the rotatable structure so that the illumination device irradiation angle is changed, the rotation of the driven sliding resistance module structure so that movement of the tap change the size of the tap voltage value; receiving the control chip and the tap voltage is compared with a preset voltage value, when the tap voltage is greater than the predetermined voltage such that the value of the output control signal of the motor normal rotation, when the tap voltage is less than the preset voltage value of the output control signal such that the motor voltage is reversed until the tap value is equal to a preset voltage value; the slide module comprises a first resistor resistance of second resistor, a third resistor, a fourth resistor, and the sliding resistance of the sense resistor; ends respectively of the sliding resistor connected in series with a first end and a second end of the first resistance of the first resistor, the resistor tap end slidably connected to the detector end of a resistor, the other end of the detection resistor connected to the first terminal of the third and fourth electrical resistor 第一端,所述第三电阻第二端与第一电阻第二端连接,所述第四电阻第二端与第二电阻第二端连接;所述第一电阻阻值30-50K欧姆,第二电阻阻值500-700欧姆,第三电阻阻值1-2K欧姆,第四电阻阻值30-50欧姆;所述检测电阻阻值与滑动电阻最大阻值的比值为1/20至1/50 ;还包括过压和反向保护模块,所述过压保护模块包括过压二极管、电容以及反向二极管,所述过压二极管与电容并联连接后与反向二极管串联连接,过压二极管负极、电容正极以及反向二极管负极等电位连接。 A first terminal, a second terminal of the third resistor connected to the second terminal of the first resistor, a second terminal of the fourth resistor is connected to a second terminal of the second resistor; 30-50K ohmic resistance of said first resistor, 500-700 ohms second resistor, a third resistor 1-2K ohms, fourth resistor 30-50 ohms; a ratio of the detecting resistor and the sliding resistance of the resistor is maximum 1/20 to 1 / 50; further comprising a reverse and overvoltage protection module, the overvoltage protection module comprises an overpressure diode, a capacitor and a reverse diode voltage capacitor in parallel with a diode connection through the reverse diode connected in series, the diode overvoltage a negative electrode, a positive electrode capacitance and the like, and a reverse diode cathode potential.
2.一种调节灯光照射角度的方法,其包括步骤: 根据预设照射角度得到预设电压值; 将照明装置实际照射角度对应的实际电压值传递至控制芯片; 控制芯片比较实际电压值与预设电压值并控制马达转动; 马达转动带动照明装置照射角度转动同时使得实际电压值变化; 实际电压值等于预设电压值时马达停止转动; 所述滑动电阻模块包括第一电阻、第二电阻、第三电阻、第四电阻、滑动电阻以及检测电阻;所述滑动电阻两端分别与第一电阻第一端和第二电阻第一端串联连接,所述滑动电阻抽头端连接至检测电阻一端,检测电阻另一端分别连接至第三电阻第一端和第四电阻第一端,所述第三电阻第二端与第一电阻第二端连接,所述第四电阻第二端与第二电阻第二端连接;所述第一电阻阻值30-50K欧姆,第二电阻阻值500-700欧姆,第三电阻阻值1_2K欧姆,第 2. A method of adjusting an irradiation angle of light, comprising steps of: obtaining a predetermined voltage level according to a preset irradiation angle; transferring actual voltage actual irradiation angle of the lighting device corresponding to the control chip; chip control compares the actual voltage value with the pre- set voltage value and controls the motor rotation; rotation drive motor means for rotating simultaneously illuminating the irradiation angle so that the actual voltage variation; actual voltage value equal to a preset voltage value of the motor rotation is stopped; the slide module comprises a first resistor, the second resistor, a third resistor, a fourth resistor, and the sliding resistance of the sense resistor; ends of the sliding resistor in series connected to a first terminal of a first resistor and a first terminal of a second resistor, one end of the slide resistor is connected to the tap of the sensing resistor, the other end of the detection resistor respectively connected to a first terminal of a third resistor and a first terminal of a fourth resistor, a second terminal of the third resistor connected to the second terminal of the first resistor, a second terminal of the fourth resistor and the second resistor a second terminal; 30-50K ohmic resistance of said first resistor, a second resistor 500-700 ohms, the third resistor 1_2K ohms, the 电阻阻值30-50欧姆;所述检测电阻阻值与滑动电阻最大阻值的比值为1/20至1/50 ;所述实际电压值为滑动电阻抽头电压值;所述照明装置照射角度转动带动滑动电阻的抽头移动从而使得抽头电压值变化。 30-50 ohm resistor; a ratio of the detecting resistor and the sliding resistance of the resistor is maximum 1/20 to 1/50; sliding resistance value of the actual voltage value of the tap voltage; means for rotating the irradiation angle of the illumination driven movement of the sliding resistance of the tap so that a tap voltage variation.
3.一种汽车前灯照明系统,其包括权利要求1所述的灯光照射角度控制系统。 3. A vehicle headlamp lighting system, comprising an irradiation angle of the lighting control system of claim 1.
CN201310291806.6A 2013-07-10 2013-07-10 A method for the light irradiation angle of the light control system and the irradiation angle adjustment CN103391670B (en)

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CN2673735Y (en) * 2003-12-19 2005-01-26 王维德 Angle controller of automobile rear view mirrow
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