WO2018161776A1 - 一种多功能灯具 - Google Patents

一种多功能灯具 Download PDF

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Publication number
WO2018161776A1
WO2018161776A1 PCT/CN2018/075996 CN2018075996W WO2018161776A1 WO 2018161776 A1 WO2018161776 A1 WO 2018161776A1 CN 2018075996 W CN2018075996 W CN 2018075996W WO 2018161776 A1 WO2018161776 A1 WO 2018161776A1
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Prior art keywords
control unit
illuminance
power supply
supply device
light
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PCT/CN2018/075996
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English (en)
French (fr)
Inventor
姜海涛
范晓鸣
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欧普照明股份有限公司
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Publication of WO2018161776A1 publication Critical patent/WO2018161776A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for

Definitions

  • the invention relates to the field of lighting devices, and in particular to a multifunctional lamp.
  • Table lamp is a lighting device commonly used in people's daily life, and it is also a necessary lighting tool for us to work and study.
  • most of the traditional table lamps are limited to lighting, which often cannot meet the needs of people, especially to meet the individual needs of students, the elderly and other special individuals.
  • the user can perform sitting posture detection and alarm at the same time of illumination, automatically adjust illumination according to current ambient light, automatic switch function for energy saving purposes, night light function, and the like.
  • the lamps sold on the market tend to have a simple structure and a single function, and can only realize illumination by manual means and simple brightness adjustment, and the degree of intelligence is low, and the above various functions cannot be realized.
  • the invention aims at the diversity of user lighting requirements and proposes a multifunctional lamp.
  • the technical solution is to provide a multifunctional lamp, comprising a lamp body and a light source and a power supply device disposed on the lamp body, wherein the multifunctional lamp further comprises an automatic switch module.
  • the illuminance adjustment module and the sitting posture reminding module, the automatic switch module, the illuminance adjustment module, the sitting posture reminding module, and the light source and the power supply device are electrically connected.
  • the automatic switch module comprises an infrared pyroelectric sensor, an ultrasonic sensor, an illuminance sensor and a control unit.
  • the infrared pyroelectric sensor senses motion of a human body, and outputs human body motion information to the control unit;
  • the ultrasonic sensor senses a human body distance and outputs distance information to the control unit;
  • the illuminance sensor measures an illuminance value and outputs illuminance information to the control unit;
  • the control unit After receiving the human body motion information, the control unit reads the distance information and the illuminance information.
  • the distance information is less than a preset distance threshold and the When the illuminance value is less than the preset illuminance threshold, the control unit sends a light-on command to the power supply device to control the power supply device to supply power to the light source; when the multi-function luminaire is in a light-on state, the distance information
  • the control unit sends a light-off command to the power supply device to control the power supply device to stop supplying power to the light source.
  • the illuminance adjustment module includes an illuminance sensor that measures an illuminance value and outputs illuminance information to the control unit, and the control unit compares the illuminance information with a preset illuminance value. When the difference between the two exceeds a threshold, the control unit issues a dimming command to the power supply device.
  • the sitting posture reminding module includes an ultrasonic sensor, a control unit, and an alarm unit, wherein the ultrasonic sensor senses body position information and outputs to the control unit, when the difference between the position information and the standard value exceeds a threshold, The control unit issues an alarm command to the alarm unit.
  • the warning information sent by the alarm unit is a combination of one or more of sound, vibration, color, and brightness.
  • the multifunctional luminaire further includes a manual illuminance adjustment module
  • the manual illuminance adjustment module includes an illuminance setting unit, an illuminance sensor, and a control unit
  • the control unit obtains a user-set illuminance value from the illuminance setting unit, and The current illuminance is obtained by the illuminance sensor, the dimming information is calculated, and a dimming command is issued to the power supply device.
  • the illuminance setting unit is a control panel, a knob or a button.
  • the multifunctional light fixture further includes a night light module
  • the night light module includes an infrared pyroelectric sensor, a control unit, and a delay unit
  • the infrared pyroelectric sensor senses movement of the human body to the control
  • the unit outputs human body motion information
  • the control unit sends a timing command to the delay unit, and sends a light-on command to the power supply device to control the power supply device to supply power to the light source.
  • the output current/voltage of the power supply device is a fixed value in the set night light mode.
  • the control unit sends a light-off command to the power supply device to control the power supply device to stop.
  • the light source is powered.
  • the infrared pyroelectric sensor, the ultrasonic sensor, the illuminance sensor, and the control unit in the multifunctional luminaire are multiplexed by two or more modules.
  • control unit is a control chip or a control circuit.
  • the solution provided by the invention can realize, for example, an automatic switch lamp, a sitting posture detection and an alarm for a user, by setting a plurality of function modules, such as an automatic switch module, an illuminance adjustment module, a sitting posture reminding module, etc. on one luminaire, according to The current ambient light automatically adjusts various control functions such as illumination.
  • function modules such as an automatic switch module, an illuminance adjustment module, a sitting posture reminding module, etc.
  • FIG. 1 is a schematic structural view of an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a functional module partitioning according to an embodiment of the present invention.
  • FIG. 1 shows a preferred embodiment of the present invention.
  • the lamp body 8 is in the form of a desk lamp, and its structure is similar to that of a conventional desk lamp. In other preferred embodiments, the lamp body 8 can also be of other types such as a wall lamp. , ceiling lamps, clip lights, etc.
  • the lamp body 8 is provided with a light source 6 and a power supply device 5, and the power supply device 5 includes a light source driving unit that is connected to the commercial power and outputs a current voltage corresponding to the light source 6 to the light source 6.
  • an infrared pyroelectric sensor 1, an ultrasonic sensor 2, an illuminance sensor 4, and a control unit 3 are further disposed on the lamp body 8.
  • FIG. 1 is only a schematic diagram, and these sensors and control units 3 are provided. And the specific setting position of the light source 6 and the power supply device 5 can be adjusted according to the actual structure and lighting requirements of the luminaire to achieve the best inspection effect and lighting effect.
  • each module is electrically connected to the light source 6 and the power supply device 5 through the control unit 3, and the light source 6 and the power supply device 5.
  • the control unit 3 can be a single control chip or a The complex control circuit is supplemented by the corresponding software settings, and the control unit 3 is multiplexed as a control center of all the functional modules by each functional module.
  • each module may also adopt its own independent control chip, or function.
  • a similar module uses a single controller, and a single chip is used separately.
  • the automatic switch module M1 includes an infrared pyroelectric sensor 1, an ultrasonic sensor 2, an illuminance sensor 4, and a control unit 3.
  • the infrared pyroelectric sensor 1 senses the motion of the human body, and outputs human body motion information to the control unit 3;
  • the ultrasonic sensor 2 senses the human body distance and outputs distance information to the control unit 3;
  • the illuminance sensor 4 measures the illuminance value and directs the illuminance information to the control unit
  • the control unit 3 reads the distance information from the ultrasonic sensor 2 and reads the illuminance information from the illuminance sensor 4.
  • the process of turning on the light is as follows.
  • the infrared pyroelectric sensor 1 senses the human body, and sends the human body motion information to the control unit 3. If the lamp is in the off state, only when two conditions are met, the table lamp Will be opened, condition 1: when the human body distance is within the preset range, condition 2: the detected illuminance is lower than the set threshold, when both conditions are met, that is, the distance information is less than the preset distance threshold and the illuminance value is less than the pre- When the illuminance threshold is set, the control unit 3 issues a light-on command to the power supply device 5, and controls the power supply device 5 to supply power to the light source 6.
  • the table lamp After the table lamp is turned on, the table lamp will automatically turn off when the following conditions are met at the same time.
  • the distance of the human body detected by the ultrasonic sensor 2 is out of range.
  • the infrared pyroelectric sensor 1 is not directly used to determine whether there is anybody, mainly due to the infrared pyroelectric sensor. 1 A person who can only sense the state of motion may sometimes be falsely reported as being unmanned when the person is at rest, so that the read/write state is mainly judged by the distance information detected by the ultrasonic sensor 2.
  • the control unit 3 issues a light-off command to the power supply device 5, and the control power supply device 5 stops supplying power to the light source 6.
  • the illuminance adjustment module M2 includes an illuminance sensor 4 and a control unit 3.
  • the illuminance sensor 4 is mounted on the top of the desk lamp, and when detecting the brightness of the tabletop, not only the superposition of the ambient light can be detected, but also the brightness change caused by the difference in the reflectance of the reading material can be detected (if the illuminance sensor 4) Installed at the bottom of the desk lamp, it can only detect the superposition of ambient light).
  • the illuminance sensor 4 transmits the detected illuminance information to the control unit 3, and the control unit 3 compares the real-time illuminance level with a preset illuminance value.
  • the control unit 3 issues a dimming command to the power supply device 5. .
  • the current that needs to be reset by the light source 6 is calculated, and a signal is sent to the power supply device 5.
  • the power supply device 5 adjusts the current output to the light source 6, and changes the brightness of the light source 6, thereby adjusting the brightness of the desktop to a set range.
  • the dimming command can also be implemented by changing the voltage or by dimming with a PWM signal.
  • the manual illuminance adjustment module M4 includes an illuminance setting unit 7, an illuminance sensor 4, and a control unit 3.
  • the illuminance setting unit 7 is a knob provided on the lamp body 8, and in other preferred embodiments, it may be a button or a control panel with a display.
  • the control unit 3 uses the illuminance level as The reference calculates the driving current required by the light source 6, and then sends the current value as a dimming command to the driving device 5.
  • the driving device 5 outputs the calculated driving current, and changes the brightness of the light source 6, so that the desktop illumination reaches the illuminance set by the user.
  • the voltage value can also be used as a dimming command or dimmed using a PWM command.
  • the sitting posture reminding module M3 includes an ultrasonic sensor 2, a control unit 3, and an alarm unit.
  • the ultrasonic sensor 2 is used to sense the human body position information and output to the control unit 3.
  • the control unit 3 issues an alarm command to the alarm unit.
  • the existing sitting posture detection technology usually uses an infrared ranging sensor device to measure the sitting posture by measuring the distance from the face to the sensor. Since the face is an irregular curved surface, the measurement stability of the sensor to the distance is poor, and it is easy to miss or misjudge the error. Sitting position.
  • the invention uses the ultrasonic sensor 2 to measure the distance from the face to the face, and determines the initial correct sitting distance L according to a certain algorithm.
  • the control is controlled.
  • the unit 3 determines that the sitting posture is wrong, and then issues a warning message such as turning off the light to prompt the user to turn on the desk lamp when the face-to-sensor distance returns to the correct sitting distance L range.
  • the alert information sent by the alarm unit may also be a combination of one or more of sound, vibration, color, and brightness.
  • the night light module M5 includes an infrared pyroelectric sensor 1, a control unit 3, and a delay unit. After turning on the night light function, the light will be turned off first, and the infrared pyroelectric sensor 1 will always detect human activity. When the human body activity is detected, the infrared pyroelectric sensor outputs the body motion information to the control unit 3, and after the signal, the control unit 3 issues a light-on command to the power source device 5, and simultaneously issues a timing command to the delay unit. At this time, because it is a night light, in order to prevent the high brightness of the night, the table lamp is turned on to a brightness lower than the normal brightness. In this embodiment, it is 10% of the normal brightness.
  • the output current/voltage is the set value, which is 10% of the normal current/voltage. Of course, the actual value can also be set according to actual needs.
  • the delay unit starts counting, the light is turned off until the continuous time reaches the preset time T, and the control unit 3 issues a light-off command to the power supply device 5, and the control power supply device 5 stops supplying power to the light source 6. If the human activity is detected again during the duration, the timing is cleared and the timing is restarted until the duration exceeds the preset time T to turn off the light.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

一种多功能灯具，包括灯体（8）和设置于灯体（8）的光源（6）及电源装置（5），该多功能灯具还包括自动开关模块（M1）、照度调节模块（M2）、坐姿提醒模块（M3），自动开关模块（M1）、照度调节模块（M2）、坐姿提醒模块（M3）和光源（6）及电源装置（5）电性连接。通过在一个灯具上设置自动开关模块（M1）、照度调节模块（M2）、坐姿提醒模块（M3）等多个功能模块，可在一个灯具上实现如自动开关灯具、对使用者进行坐姿检测及报警、根据当前的环境光自动调节照度等多种控制功能。

Description

一种多功能灯具 技术领域
本发明涉及照明装置领域，特别涉及一种多功能灯具。
背景技术
台灯是人们在日常生活中常用的一种照明装置，也是我们在工作、学习中必备的照明工具。但传统的台灯大多只限于照明，往往满足不了人们的需求，特别是满足学生、老人等特殊个体的个性化需求。如可以在照明的同时对使用者进行坐姿检测及报警、根据当前的环境光自动调节照度、处于节能目的的自动开关功能、夜灯功能等。目前市场上销售的台灯往往结构简单，功能较为单一，只能够通过手动方式实现照明以及简单的亮度调节，智能化程度低，不能实现以上各种功能。
发明内容
本发明正是针对用户照明需求的多样性，提出了一种多功能灯具。
本发明为实现上述功能，所采用的技术方案是提供一种多功能灯具，包括灯体和设置于所述灯体的光源及电源装置,其特征在于:所述多功能灯具还包括自动开关模块、照度调节模块、坐姿提醒模块，所述自动开关模块、所述照度调节模块、所述坐姿提醒模块和所述光源及所述电源装置电性连接。
优选的，所述自动开关模块包括红外热释电传感器、超声波传感器、照度传感器及控制单元，
所述红外热释电传感器感测人体的运动，向所述控制单元输出人体运动信息；
所述超声波传感器感测人体距离并向所述控制单元输出距离信息；
所述照度传感器测量照度值并将照度信息向所述控制单元输出；
所述控制单元在接收到所述人体运动信息后，读取所述距离信息和所述照度信息，当所述多功能灯具处于关灯状态，所述距离信息小于预设的距离阈值且所述照度值小于预设的照度阈值时，所述控制单元向所述电源装置发出开灯命令，控制所述电源装置向所述光源供电；当所述多功能灯具处于开 灯状态，所述距离信息大于预设的距离阈值时，所述控制单元向所述电源装置发出关灯命令，控制所述电源装置停止向所述光源供电。
优选的，所述照度调节模块包括照度传感器、控制单元，所述照度传感器测量照度值并将照度信息向所述控制单元输出，所述控制单元将所述照度信息和预设的照度值进行比较，两者的差值超过一个阈值时，所述控制单元向所述电源装置发出调光命令。
优选的，所述坐姿提醒模块包括超声波传感器、控制单元、报警单元，所述超声波传感器感测人体位置信息并向所述控制单元输出，当所述位置信息和标准值的差超过阈值时，所述控制单元向所述报警单元发出报警命令。
优选的，所述报警单元发出的警示信息为声音、振动、色彩、亮度中的一种或多种的组合。
优选的，多功能灯具还包括手动照度调节模块，所述手动照度调节模块包括照度设定单元、照度传感器、控制单元，所述控制单元从所述照度设定单元获得用户设定照度值，并通过所述照度传感器获得当前照度，计算调光信息，并向所述电源装置发出调光命令。
优选的，所述照度设定单元为控制面板、旋钮或按键。
优选的，所述多功能灯具还包括夜灯模块，所述夜灯模块包括红外热释电传感器、控制单元、延时单元，所述红外热释电传感器感测人体的运动，向所述控制单元输出人体运动信息，所述控制单元收到所述人体运动信息后，向延时单元发出计时指令，向所述电源装置发出开灯命令，控制所述电源装置向所述光源供电，所述电源装置的输出电流/电压为设定的夜灯模式下的定值，在延时单元计时达到预设时间，所述控制单元向所述电源装置发出关灯命令，控制所述电源装置停止向所述光源供电。
优选的，所述多功能灯具中的红外热释电传感器、超声波传感器、照度传感器、控制单元为两个以上模块所复用。
优选的，所述控制单元为控制芯片或控制电路。
本发明所提供的解决方案通过在一个灯具上设置自动开关模块、照度调节模块、坐姿提醒模块等多个功能模块可在一个灯具上实现如自动开关灯具、对使用者进行坐姿检测及报警、根据当前的环境光自动调节照度等多种控制功能。
附图说明
通过阅读下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本发明的限制。而且在整个附图中，用相同的参考符号表示相同的部件。在附图中：
图1是本发明实施例的结构示意图；
图2是本发明实施例的功能模块划分逻辑示意图。
具体实施方式
以下结合附图和具体实施例对本发明提出的一种多功能灯具作进一步详细的说明。
图1所示为本发明的一个较佳实施例，其灯体8的形式为一个台灯，其结构和普通的台灯类似，在其他较佳实施例中灯体8也可以为其他类型如为壁灯、吸顶灯、夹子灯等形式。在本实施例中灯体8上设置有光源6及电源装置5，电源装置5包括有光源驱动单元,其连接市电并向光源6输出符合其需要的电流电压。在本实施例中为了实现各种功能，在灯体8上还设置有红外热释电传感器1、超声波传感器2、照度传感器4、控制单元3，图1仅为示意图，这些传感器、控制单元3以及光源6和电源装置5的具体设置位置可以按灯具的实际结构和照明需求来进行调整，以达到最佳的检查效果和照明效果。
为了便于说明，我们根据实现功能的不同，将不同的传感器和控制单元3的组合从逻辑上划分为各个不同的功能模块，如图2所示，包括自动开关模块M1、照度调节模块M2、坐姿提醒模块M3、手动照度调节模块M4、夜灯模块M5。各模块通过控制单元3和光源6及电源装置5电连接，从而实现对光源6及电源装置5的控制，在本实施例中，控制单元3可以是一个单独的控制芯片，也可以是一个较为复杂的控制电路并辅以相应的软件设置，控制单元3作为全部各功能模块的控制中心被各功能模块所复用，在其他实施例中各模块也可以各自采用自己独立的控制芯片，或者功能相近的模块合用一个控制器，功能差别较大的单独采用一个芯片。而关于前面提到的 红外热释电传感器1、超声波传感器2、照度传感器4，在本实施例中处于降低成本或简化结构设计的考虑，这些传感器为各功能模块所复用，在其他较佳实施例中也可以为各功能模块单独配置。
自动开关模块M1包括红外热释电传感器1、超声波传感器2、照度传感器4和控制单元3。红外热释电传感器1感测人体的运动，向控制单元3输出人体运动信息；超声波传感器2感测人体距离并向控制单元3输出距离信息；照度传感器4测量照度值并将照度信息向控制单元3输出；控制单元3在接收到红外热释电传感器1传来的人体运动信息后，从超声波传感器2处读取距离信息、从照度传感器4处读取照度信息。其开灯过程如下，当人体靠近台灯一定范围内时，红外热释电传感器1感应到人体，发送人体运动信息给控制单元3，如灯具处于关灯状态时，只有满足两个条件时，台灯才会打开，条件一：人体距离在预设的范围内时，条件二：检测照度低于设定阈值，当同时满足这两个条件，即距离信息小于预设的距离阈值且照度值小于预设的照度阈值时，控制单元3向电源装置5发出开灯命令，控制电源装置5向光源6供电。台灯开启后，当同时满足以下条件时，台灯会自动关闭，超声波传感器2检测到的人体距离超出范围，这里不直接采用红外热释电传感器1来确定是否有人，主要是由于红外热释电传感器1仅能感测到运动状态的人，当人处于静止时有时会误报为无人，因此在读写状态时主要还是通过超声波传感器2检测的距离信息来判断。当灯具处于开灯状态，距离信息大于预设的距离阈值时，控制单元3向电源装置5发出关灯命令，控制电源装置5停止向光源6供电。
照度调节模块M2包括照度传感器4、控制单元3。在本实施例中照度传感器4安装在台灯的顶部，在检测桌面亮度时，不仅能把环境光的叠加检测出来，还能检测因阅读材料的反射率不同而引起的亮度变化(如果照度传感器4装在台灯底部，则只能检测环境光的叠加)。照度传感器4把检测的照度信息传送给控制单元3，控制单元3比较实时照度水平与预先设定的照度值，如果二者差别超出限定的阈值，控制单元3会向电源装置5发出调光命令。具体为计算光源6需要重新设定的电流，发送信号给电源装置5，电源装置5调节向光源6输出的电流，改变光源6的亮度，从而把桌面亮度调节到设定的范围。在其他实施例中调光命令还可以通过改变电压实现，或采 用PWM信号调光。
虽然自动调光可以实现最佳的照度效果，但是每个人的习惯不同，很多用户还是习惯于自己设定照度，因此在本实施例中还另外设置了手动照度调节模块M4。手动照度调节模块M4包括照度设定单元7、照度传感器4、控制单元3。在本实施例中照度设定单元7为设置在台灯灯体8上的一个旋钮，在其他较佳实施例中也可以为按键、或者带显示的控制面板。本实施例在使用时用户用调节旋钮手动调节台灯亮度，手动调节亮度后，照度传感器4检测到的当前的照度水平，然后把此照度水平发送给控制单元3，控制单元3以此照度水平为基准，计算光源6需要的驱动电流，然后把该电流值作为调光命令发送给驱动装置5，驱动装置5即输出计算的驱动电流，改变光源6的亮度，使桌面照度达到用户设置的照度。在其他较佳实施例中也可将电压值作为调光命令，或采用PWM命令进行调光。
坐姿提醒模块M3包括超声波传感器2、控制单元3、报警单元。在本实施例中采用超声波传感器2感测人体位置信息向控制单元3输出，当所置信息和标准值的差超过阈值时，控制单元3向报警单元发出报警命令。现有的坐姿检测技术通常使用红外测距传感器的设备，通过测量人脸到传感器的距离来判断坐姿，由于人脸是不规则曲面，传感器对距离的测量稳定性差，容易漏判或误判错误坐姿。本发明采用超声波传感器2测量自身到人脸的距离，根据一定的算法确定初始的正确坐姿距离L，当实时检测的距离相较于L低于一定的阈值后，并且持续10秒钟以上，控制单元3判定为坐姿错误，然后发出警示信息如关灯，以提示使用者，当人脸到传感器距离回复到正确坐姿距离L范围内时，台灯重新点亮。在其他实施例中报警单元发出的警示信息还可以为声音、振动、色彩、亮度中的一种或多种的组合。
夜灯模块M5包括红外热释电传感器1、控制单元3、延时单元。在开启小夜灯功能后，灯光会先关掉，红外热释电传感器1则一直检测人体活动。当检测到人体活动时，红外热释电传感器向控制单元3输出人体运动信息，控制单元3在信号后，向电源装置5发出开灯命令，并同时向延时单元发出计时指令。此时因为是夜灯，为了防止夜间的高亮度的给使用者造成的不适应，台灯点亮至比正常亮度较低的亮度，在本实施例中为正常亮度的10％，此时电源装置的输出电流/电压为设定值，为正常电流/电压的10％，当然实 际数值也可以根据实际需要另外设置。延时单元开始计时后，直到持续的时间达到预设的时间T才关掉灯光，控制单元3向电源装置5发出关灯命令，控制电源装置5停止向所述光源6供电。如果在持续期内再次检测到人体活动，则计时清零，重新开始计时，直到持续时间超过预设的时间T才关掉灯光。
本实施例通过上述模块的组合，在一个灯具上同时实现了自动开关灯、自动照度调节、坐姿检测及报警、感应夜灯等多个功能，构成了本实用性新型所述的多功能灯具。
上文对本发明优选实施例的描述是为了说明和描述，并非想要把本发明穷尽或局限于所公开的具体形式，显然，可能做出许多修改和变化，这些修改和变化可能对于本领域技术人员来说是显然的，应当包括在由所附权利要求书定义的本发明的范围之内。

Claims (10)

  1. 一种多功能灯具，包括灯体和设置于所述灯体的光源及电源装置,其特征在于:所述多功能灯具还包括自动开关模块、照度调节模块、坐姿提醒模块，所述自动开关模块、所述照度调节模块、所述坐姿提醒模块和所述光源及所述电源装置电性连接。
  2. 根据权利要求1所述的多功能灯具，其中：所述自动开关模块包括红外热释电传感器、超声波传感器、照度传感器及控制单元，
    所述红外热释电传感器感测人体的运动，向所述控制单元输出人体运动信息；
    所述超声波传感器感测人体距离并向所述控制单元输出距离信息；
    所述照度传感器测量照度值并将照度信息向所述控制单元输出；
    所述控制单元在接收到所述人体运动信息后，读取所述距离信息和所述照度信息，当所述多功能灯具处于关灯状态，所述距离信息小于预设的距离阈值且所述照度值小于预设的照度阈值时，所述控制单元向所述电源装置发出开灯命令，控制所述电源装置向所述光源供电；当所述多功能灯具处于开灯状态，所述距离信息大于预设的距离阈值时，所述控制单元向所述电源装置发出关灯命令，控制所述电源装置停止向所述光源供电。
  3. 根据权利要求1所述的多功能灯具，其中：所述照度调节模块包括照度传感器、控制单元，所述照度传感器测量照度值并将照度信息向所述控制单元输出，所述控制单元将所述照度信息和预设的照度值进行比较，两者的差值超过一个阈值时，所述控制单元向所述电源装置发出调光命令。
  4. 根据权利要求1所述的多功能灯具，其中：所述坐姿提醒模块包括超声波传感器、控制单元、报警单元，所述超声波传感器感测人体位置信息并向所述控制单元输出，当所述位置信息和标准值的差超过阈值时，所述控制单元向所述报警单元发出报警命令。
  5. 根据权利要求4所述的多功能灯具，其中：所述报警单元发出的警示信息为声音、振动、色彩、亮度中的一种或多种的组合。
  6. 根据权利要求1所述的多功能灯具，其中：多功能灯具还包括手动照度调节模块，所述手动照度调节模块包括照度设定单元、照度传感器、控制单元，所述控制单元从所述照度设定单元获得用户设定照度值，并通过 所述照度传感器获得当前照度，计算调光信息，并向所述电源装置发出调光命令。
  7. 根据权利要求6所述的多功能灯具，其中：所述照度设定单元为控制面板、旋钮或按键。
  8. 根据权利要求1所述的多功能灯具，其中：所述多功能灯具还包括夜灯模块，所述夜灯模块包括红外热释电传感器、控制单元、延时单元，所述红外热释电传感器感测人体的运动，向所述控制单元输出人体运动信息，所述控制单元收到所述人体运动信息后，向延时单元发出计时指令，向所述电源装置发出开灯命令，控制所述电源装置向所述光源供电，所述电源装置的输出电流/电压为设定的夜灯模式下的定值，在延时单元计时达到预设时间，所述控制单元向所述电源装置发出关灯命令，控制所述电源装置停止向所述光源供电。
  9. 根据权利要求2到8任一所述的多功能灯具，其中：所述多功能灯具中的红外热释电传感器、超声波传感器、照度传感器、控制单元为两个以上模块所复用。
  10. 根据权利要求9所述的多功能灯具，其中：所述控制单元为控制芯片或控制电路。
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