WO2011085570A1 - 智能led路灯 - Google Patents

智能led路灯 Download PDF

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Publication number
WO2011085570A1
WO2011085570A1 PCT/CN2010/071866 CN2010071866W WO2011085570A1 WO 2011085570 A1 WO2011085570 A1 WO 2011085570A1 CN 2010071866 W CN2010071866 W CN 2010071866W WO 2011085570 A1 WO2011085570 A1 WO 2011085570A1
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WO
WIPO (PCT)
Prior art keywords
led
lamp
microprocessor
street lamp
led street
Prior art date
Application number
PCT/CN2010/071866
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English (en)
French (fr)
Inventor
李红深
Original Assignee
Li Hongshen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Li Hongshen filed Critical Li Hongshen
Publication of WO2011085570A1 publication Critical patent/WO2011085570A1/zh

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Classifications

    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Definitions

  • the utility model relates to an intelligent LED street lamp, belonging to the technical field of illumination.
  • the purpose of the utility model is to provide a smart LED street lamp that meets the needs of the background art and saves energy and electricity.
  • the utility model relates to an intelligent LED street lamp, which comprises a microprocessor, a plurality of LED lamp modules respectively connected with a microprocessor, a daylight sensor, a light sensor, and a power supply module for providing a DC power source.
  • the utility power supply is used, and the power supply module includes a commercial power, a variable voltage ballast, and a commercial power supply through a variable voltage ballast output DC power supply.
  • the solar power supply includes a solar panel, a battery, a variable voltage ballast, a solar panel connected battery, a battery connected variable voltage ballast, and a variable voltage ballast output DC power source.
  • the utility power supply is provided by the utility power and the solar energy.
  • the power supply module includes a commercial power supply, a solar panel, a storage battery, a variable voltage ballast, a solar panel connected battery, a battery connection transformer town, and a city connection transformer town. Flow, variable voltage ballast output DC power supply.
  • a plurality of LED light modules form a light source of the lamp head.
  • the microprocessor When the daylight sensor senses that the daylight index is lower than the set value, the daylight is dark, and the microprocessor sends a signal to control the lamp head to emit light at 1/3 power, and the light sensor receives The light from the moving vehicle from a certain distance, the microprocessor starts the lamp head to emit 2/3 and full power according to the vehicle speed delay of the road, and reduces the lamp head power to 1-2 seconds after the vehicle leaves. 2/3 and 1/3 power.
  • the daylight sensor senses that the daylight index is higher than the set value, it is dawn, and the microprocessor sends a signal to turn off the lamp.
  • the intelligent control can be realized, and the power of the street lamp can be automatically adjusted according to the traffic flow.
  • the street lamp is in the most power-saving 1/3 power output state, and the detected vehicle arrives at a certain time.
  • the distance street lamp is in the 2/3 power output state, and the street lamp is in full power output state when the vehicle is about to reach the street lamp illumination range.
  • the microprocessor delays the 1-2 seconds and then controls the street lights to be in the 2/3 power output state and the 1/3 power output state. It can be seen that the utility model adjusts the brightness and darkness of the LED lamp by adjusting the length of the LED lighting time, thereby achieving energy saving and emission reduction.
  • the utility model using the utility power supply saves about 45% of electricity compared with the conventional street lamp. If the traffic volume is less, the more power is saved, so it is very suitable to use the road below the national highway.
  • the cost of such LED street lamps is only 50% higher than that of traditional street lamps. The theoretical increase in investment can be recovered from the electricity bill saved in one year. More importantly, this LED street light can reduce CO2 emissions by about 50% compared with traditional street lamps, thus effectively cooperating with the national energy conservation and emission reduction policies.
  • FIG. 1 is a schematic diagram of a circuit block of an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a lamp cap according to an embodiment of the present invention.
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 2;
  • FIG. 4 is a schematic view of the application state of the utility model
  • FIG. 5 is a schematic view showing the working state of six LED lamp modules according to an embodiment of the present invention.
  • the embodiment of the present invention includes a microprocessor 1, six LED lamp modules respectively connected to the microprocessor 1, a daylight sensor 3, a light sensor 4, and a power supply module for supplying a DC power source.
  • the power supply module includes 220V mains, solar panel 24V, 24V battery, variable voltage ballast, solar panel connected battery, battery connected variable voltage ballast, mains connection transformer ballast, variable voltage ballast output DC power.
  • each LED lamp module 2 and a microprocessor 1 are disposed in the lamp cap 5.
  • the lamp cap 5 is provided with a convex arc-faced cast aluminum lampshade 9, six LED lamp modules 2, and fifteen mutually connected LED lamps 6 and driver chips 7 of each LED lamp module 2 are mounted on an aluminum substrate by means of a patch.
  • the eight aluminum substrates 8 are arranged side by side with the inner convex arc surface cast aluminum lampshade 9, so that the six LED lamp modules 2 are installed into six different illumination angles, so that the light source forms a long strip of light strip spreading along the road surface, six
  • the aluminum substrate 8 is mounted in contact with the cast aluminum lamp cover 9 as much as possible, so that the heat generated by the LED module can be quickly transmitted to the outer lamp cover and emitted.
  • a gap is left between the microprocessor 1 and the cast aluminum lamp cover 9 to minimize the heat generated by the LED module 2 from being transmitted to the microprocessor 1.
  • LED constant current driver chip 7 accepts 60V input voltage. Under normal circumstances, it outputs 50V/350mA to 15 series LED lamps. Each LED lamp bears an average of 350mA current and 3.3V voltage, and the output power is about 1. watt.
  • the solar panel 10 is disposed at the top of the lamp post 11, and the battery 12 is disposed at the bottom of the lamp post 11.
  • the light sensor 4 includes a photosensor chip disposed at a lower portion of the lamp post 11, and the daylight sensor 3 includes another photosensor chip disposed at an upper portion of the lamp cap 5.
  • the pole 11 is 6 meters high and the distance between the two poles is 14 meters.
  • the length of the lamp 5 is 13 meters along the length of the road. The length of the road is 14 meters.
  • the lamp When there is no car at night, the lamp is 5 1/3 of the power output works, assuming a road speed limit of 60 km / h, the car 14 advances at a speed of 16.6 m / sec, setting the photoelectric sensor chip 4 to sense the distance of the car light is 80 m, then from the discovery of the car 14 to the car 14 The arrival time is about 5 seconds. In 5 seconds, the driver has time to react to the obstacles on the road.
  • the street lights are operated with 2/3 power and full power in 5 seconds, which can be maximized under the premise of driving safety. Save energy consumed by street lamps.
  • Light-emitting part of the lamp 6 LED light modules consisting of 90 LED lights and driving chips, 15 LED lights and 1 driving chip for each module, 1 watt per LED lamp, the 6 modules are controlled by signal microprocessor .
  • Two different photoelectric sensor chips one is a daylight photoelectric sensor chip, installed in the upper part of the lamp head, which automatically interrupts the signal to the microprocessor when the daylight index tends to zero, and the other is the car light sensor chip, which is installed in At the lower part of the pole, about 0.5 m high, the light photoelectric sensor chip receives the light from the moving vehicle within a distance of 50-100 meters.
  • the photoelectric sensing intensity can be determined according to the speed limit requirement of the road, for example, the speed limit of 60 km / h.
  • the distance is set to 80 meters, and the sensing distance is 50 meters at 50 km/h and below.
  • the chip senses the incoming car light and converts the optical signal into an electrical signal to the signal microprocessor.
  • Microprocessor It has signal picking, multi-loop output and delay level triggering.
  • the daylight sensor chip senses that the daylight index is lower than the set value
  • the signal 0001 is sent to the microprocessor.
  • the microprocessor triggers the on-chip current switch command a01, and simultaneously triggers the light sensor chip to start working, and the switch a
  • the instruction aOl is sent to the driver chip on the six LED modules through the channel al_a6.
  • the LED module After the driver chip receives the aO1 command, the LED module is driven by the current of 1/3 power to operate in the state one, as shown in the upper part of FIG.
  • the daylight sensor chip senses that the daylight index is higher than the set value
  • the signal 0011 is sent to the microprocessor, and the microprocessor After receiving this signal, the device triggers the on-chip current switching command a00, and the switch a sends aOO command to the driving chip on the six LED modules, the driving chip turns off the current of the LED module, and the microprocessor sends a signal to the light sensing chip. Stop the light sensor chip.
  • the light sensing chip senses the set vehicle light intensity value, and sends a signal 0101 to the microprocessor.
  • the microprocessor triggers the on-chip current switching command a02, and the switch a passes simultaneously.
  • the channel al_a6 sends the command a02 to the driver chip on the six LED modules.
  • the LED module is driven by the current of 2/3 power to operate in the second state, as shown in the middle of FIG.
  • the microprocessor After working in state 2 for 2-4 seconds, according to the road speed limit standard, the microprocessor sends a switch command a03, and the switch a simultaneously sends the command a03 to the driver chip on the six LED modules through the channel al_a6, and the driver chip receives the a03. After the command, the LED module is driven at full power to operate in state three, as shown in the lower part of Figure 5.
  • the driving chip receives the instruction of the microprocessor aO1, and supplies power to the six LED modules in one cycle of 30 microseconds, and the power-on time is 10 microseconds per cycle, and the power-off time is 20 microseconds. Seconds, so the six LED modules work in 1/3 of the time, and the lights are not working at 2/3, and the power consumption is only 1/3 of the full-cycle lighting. Since the time of 20 microseconds is extremely short, the human eye can't see the light go out, but it will feel that the light is dark 2/3.
  • the driver chip receives the microprocessor a02 command, and supplies power to the six LED modules in one cycle of 30 microseconds.
  • the power-on time is 20 microseconds per cycle, and the power-on time is 10 microseconds, so 6 LEDs
  • the module lights up at 2/3 hours, and the lamp does not work when it is turned off for 1/3 time.
  • the power consumption is only 2/3 of the full cycle lighting. Since the time of 10 microseconds is extremely short, the human eye can't see the light go out, but it will feel the light is 1/3 dark.
  • the driver chip receives the microprocessor a03 command, and supplies power to the six LED modules in one cycle of 30 microseconds.
  • the power-on time is 30 microseconds per cycle, and the power-on time is 0 microseconds, so 6 LEDs
  • the module lights up at all times, consuming 100% of the power of the full cycle, and the human eye sees that the light is the brightest.
  • the utility model can sense sunlight and automobile light, realizes the brightness of the street lamp by the intelligent control, and adjusts the light and darkness, thereby greatly saving energy consumption and prolonging the use time of the battery in continuous rainy days.
  • the utility model drives and controls the safe use of the LED lamp by using a driving chip through a microprocessor, and can adjust the brightness and darkness of the LED lamp by adjusting the length of the LED lighting time on the basis of constant current voltage regulation, thereby achieving energy saving and emission reduction. This is something traditional street lights can't do.
  • the utility model has the long service life, and the light source has a life of more than 50,000 hours, which is 5 to 10 times that of the conventional sodium lamp.
  • the utility model uses the white light 1W package which is the most mature technology in the prior art, and the surface is soldered on a 2-layer aluminum substrate board, and the aluminum substrate is mounted on the heat-dissipating aluminum lamp cover, thereby ensuring the heat dissipation requirement and the service life of the LED.
  • the utility model adopts the modular design of the LED lamp, and can be arbitrarily combined into products with different power and brightness requirements.
  • Each LED lamp module is an independent light source and can be interchanged, and the independent module failure does not affect the normal operation of the entire lamp.
  • the driver chip and the LED lamp it drives are mounted on a strip of aluminum substrate, and the entire aluminum plate can be easily disassembled and maintained.
  • the utility model has the advantages of low working voltage, lower than 60V, and the advantage that the lampshade is not blackened due to high pressure adsorption of dust like ordinary street lamps, and is safe and reliable.
  • the working temperature is low, the LED light source is a cold light source, and when the heat dissipation is good, the working temperature is lower than 60 ° C, which will not cause the lampshade to age and yellow.
  • the ultra-high frequency pure direct current work of the utility model eliminates the visual fatigue caused by the low frequency flicker of the traditional street lamp. It is resistant to impact, strong in shock resistance, high in color rendering index and good in color rendering. The color is rendered more realistic and more vivid. It is environmentally friendly and contains no pollution elements such as lead and mercury. It does not pollute the environment.
  • the chip driven constant current technology of the utility model has high efficiency, low heat, high constant current precision, and no pollution to the power grid.
  • the efficiency of LED light emission under existing conditions is 75-1001m/w.
  • the street light festival has obvious effects. Compared with the traditional street lamps, the electric energy can be saved by more than 50% under the premise of obtaining the same road illumination.
  • the utility model is an intelligent system, and the front end is provided with sunlight composed of photoelectric sensing chips
  • the sensor and the light sensor are equipped with a driving chip for each of the 15 LED lights on the lamp head.
  • These driving chips form an intelligent system terminal, and the system configures an active amplifier for the front-end chip photoelectric signal, and configures a signal delay trigger for the terminal driving chip.
  • the system uses a microprocessor that centrally picks up and distributes functions.
  • This intelligent system-controlled LED street light has the unique advantages of high efficiency, safety, energy saving, environmental protection, long life, fast response, high color rendering index, etc. It can be widely used in urban road lighting, national highway lighting and community park lighting.
  • the intelligent system can be applied to both the mains power supply and the solar power supply. For the key road sections, the main power supply and solar energy can be used at the same time. When there is a sun, the solar power supply is used. If it is rainy for a long time, Switch to utility power.
  • the utility model has a steel lamp pole of 6-8 meters high, a lamp cap cover made of cast aluminum, and 90 lamp 1 watt LED lamps are installed in the lamp cap, and each of the 15 LED lamps constitutes 6 LED modules, and the LED driver chip is adopted.
  • the three illumination states formed by the smart sensing technology cause the LED lamps to illuminate.
  • the LED module light strips are installed in six different illumination angles, so that the light source forms a long strip of light strips spread along the road surface, which can make the light emitted by the light source more efficient, and can be compared with the conventional light source which is inconvenient to control the illumination angle.
  • the use of relatively small power to achieve the desired local lighting effect thus achieving energy savings.
  • the LED photoelectric induction street lamp has a power of about 90W, and the illumination effect of the 250W sodium lamp on the road surface can be realized.
  • the utility model is to develop a new type of LED technology on the source of the chip, that is, an energy-saving scheme in which a combination of an LED driver chip and an LED lamp is formed to form a constant current drive and a time-sharing operation is implemented.
  • an energy-saving scheme in which a combination of an LED driver chip and an LED lamp is formed to form a constant current drive and a time-sharing operation is implemented.
  • the mains supply circuit lights For the mains supply circuit lights, it will save 45% of the total power usage overnight.
  • solar power supply circuit lights it can make the battery full power output time less than 1/3, each The total nighttime battery output is 45% less, so it can work longer in continuous rainy weather than solar powered circuit lights without intelligent control.
  • each LED lamp module uses an LED driving chip with a constant current and a voltage stabilizing function, the LED lamp operates in a constant current and a regulated power supply environment, thereby It avoids the LED lamp burning or prematurely attenuating due to external voltage fluctuations, and reduces the probability of LED lamp failure by 70%. Since the driving chip and the LED lamp can be plastically sealed in the same component to form an environment free from external interference, the driving signal can correctly control the switch, so that the color of the LED lamp is purely fine and the brightness consistency is good.

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Description

智能 LED路灯
技术领域：
本实用新型涉及一种智能 LED路灯， 属于照明技术领域。
背景技术：
人类的碳排放主要是在工业和生活中使用煤和石油制品造成的， 煤 是最大碳排放产品， 煤的最大用户是发电厂， 人类的现代生活对电的需 求越来越大， 造成碳排放也越来越大， 要减排就必须少用电， 因此， 最 好是使用节能省电的产品， 并逐步淘汰高耗用电设施。 公共建设最大用 电设施是路灯， 随着国内道路的新建和升级换代， 每年政府在路灯电费 的开支增加远超过 GDP增加的比例， 也意味着向大气排放二氧化碳的增 速超过了 GDP的增速。
实用新型内容：
本实用新型的目的就是提出一种适应背景技术需要， 节能省电的智 能 LED路灯。
为实现上述目的， 本实用新型一种智能 LED路灯， 包括微处理器， 分别与微处理器连接的多个 LED灯模块、 日光感应器、 灯光感应器， 以 及提供直流电源的供电模块。
在一种实施方式中， 使用市电供电， 上述供电模块包括市电、 变压 镇流， 市电经变压镇流输出直流电源。
在另一种实施方式中， 使用太阳能供电， 上述供电模块包括太阳能 板、 蓄电池、 变压镇流， 太阳能板连接蓄电池， 蓄电池连接变压镇流， 变压镇流输出直流电源。
在再一种实施方式中， 使用市电、 太阳能供电， 上述供电模块包括 市电、 太阳能板、 蓄电池、 变压镇流， 太阳能板连接蓄电池， 蓄电池连 接变压镇流， 市电连接变压镇流， 变压镇流输出直流电源。 多个 LED灯模块形成灯头的发光光源， 当日光感应器感应到日光指 数低于设定数值时， 即天黑了， 微处理器发出信号控制灯头以 1/3功率 发光， 灯光感应器接收到来自一定距离内移动车辆的灯光， 微处理器根 据所在道路的车辆速度延时启动灯头以 2/3和全功率发光， 并在车辆离 去以后延时 1-2秒分别将灯头发光功率降低至 2/3和 1/3功率。 在日光 感应器感应到日光指数高于设定数值时， 即天亮了， 微处理器发出信号 让灯头全部熄灭。
本实用新型由于设有微处理器， 故能够做到智能控制， 路灯功率可 根据车流量自动调节， 在没有车辆通过时路灯处于最节电的 1/3功率输 出状态， 在探测到车辆到达一定距离时路灯处于 2/3功率输出状态， 在 车辆即将到达路灯照射范围时路灯处于全功率输出状态。 当车辆离开时， 微处理器延时 1-2秒后控制路灯分别处于 2/3功率输出状态和 1/3功率 输出状态。 可见， 本实用新型通过调整 LED发光时间长短调整 LED灯的 亮暗， 从而实现节能减排。
使用市电供电的本实用新型比传统路灯省电约 45%, 若车流量越少， 省电越多， 因此用在国道以下公路将非常合适。 而这种 LED路灯的造价 仅比传统路灯造价增加 50%,理论上增加的投入可在这种路灯一年内节省 的电费中收回。更重要的是这种 LED路灯可以比传统路灯减少约 50%的二 氧化碳排放量， 从而有力地配合了国家的节能减排政策。
使用太阳能供电的本实用新型是零能耗零排放的全绿色解决方案。 附图说明：
图 1是本实用新型实施例电路方框原理示意图；
图 2是本实用新型实施例灯头结构示意图；
图 3是图 2的 A-A向剖面图；
图 4是本实用新型应用状态示意图； 图 5是本实用新型实施例六个 LED灯模块工作状态示意图。
具体实施方式：
以下结合附图详述本实用新型实施例的结构细节：
如图 1所示， 本实用新型实施例包括微处理器 1， 分别与微处理器 1 连接的六个 LED灯模块 2、 日光感应器 3、 灯光感应器 4， 以及提供直流 电源的供电模块。 供电模块包括市电 220V、 太阳能板 24V、 24V蓄电池、 变压镇流， 太阳能板连接蓄电池， 蓄电池连接变压镇流， 市电连接变压 镇流， 变压镇流输出直流电源。
如图 2、 图 3所示， 六个 LED灯模块 2和微处理器 1均设置在灯头 5内。 六个 LED灯模块 2， 其每一个 LED灯模块 2包括十五个互相串联的 LED灯 6和 LED恒流驱动芯片 7， 微处理器 1经 LED恒流驱动芯片 7驱动该十五个互相串 联的 LED灯 6。 灯头 5设有内凸弧面铸铝灯罩 9， 六个 LED灯模块 2， 其每一 个 LED灯模块 2的十五个互相串联的 LED灯 6和驱动芯片 7用贴片方式安装 在一条铝基板 8上， 六条铝基板 8并排与内凸弧面铸铝灯罩 9接触安装， 使 六个 LED灯模块 2安装成 6个不同发光角， 使光源形成一个长条形光带沿 路面方向铺展， 六条铝基板 8与铸铝灯罩 9尽量大面积接触安装， 使 LED模 块产生的热量能够快速传递给外灯罩并散发出去。微处理器 1与铸铝灯罩 9之间留有空隙， 尽量不让 LED模块 2产生的热量传到微处理器 1中来。
LED恒流驱动芯片 7接受 60V输入电压， 正常情况下它输出 50V/350mA 给 15个串联的 LED灯， 每个 LED灯平均承受 350毫安电流和 3. 3伏的电压， 输出功率约为 1瓦。
如图 4所示， 太阳能板 10设置在灯杆 11顶部， 蓄电池 12设置在灯杆 11 的底部。 灯光感应器 4包括一个光电感应芯片，设置在灯杆 11的下部， 日 光感应器 3包括另一个光电感应芯片， 设置在灯头 5的上部。 灯杆 11高为 6米， 两灯杆间距为 14米， 灯头 5灯光沿道路长度方向 13 有效照亮长度为 30米， 道路宽度方向照亮为 14米， 在晚上无车通过时灯 头 5以 1/3功率输出工作， 假定道路限速 60公里 /小时， 汽车 14以 16. 6米 / 秒速度前进， 设定光电感应芯片 4感应车灯距离为 80米， 则从发现汽车 14至汽车 14到达的时间约为 5秒， 5秒时间内驾驶员来得及对道路的障碍 物做出反应， 在 5秒内使路灯分别用 2/3功率和全功率工作， 可在行车安 全的前提下最大限度地节省路灯消耗的能源。
综上所述， 对本实用新型实施例再详细描述如下：
灯头发光部分： 由 90个 LED灯和驱动芯片组成 6个 LED灯模块， 每 个模块 15个 LED灯和 1个驱动芯片， 每个 LED灯 1瓦， 该 6个模块均 由信号微处理器控制。
二个不同的光电感应芯片： 一个是日光光电感应芯片，装设在灯头 上部， 感应到日光指数趋于零时自动中断给微处理器的信号， 另一个是 车灯光电感应芯片，装设在灯杆下部约 0. 5米高处， 灯光光电感应芯片接 收来自 50-100米距离内移动车辆的灯光， 可根据所在道路的限速要求确 定光电感应强度， 例如限速 60公里 /小时其感应距离设为 80米， 50公里 /小时及以下其感应距离设为 50米， 当车辆到达设定距离时该芯片即感 应到来车灯光并将光信号转为电信号送到信号微处理器。
微处理器： 它具有信号拾取， 多回路输出和延时分级触发功能。 日光感应芯片感应到日光指数低于设定数值时， 发送信号 0001给微 处理器， 微处理器收到这一信号后， 触发芯片内电流开关指令 a01， 同 时触发灯光感应芯片开始工作，开关 a同时通过频道 al_a6发送指令 aOl 给 6个 LED模块上的驱动芯片， 驱动芯片收到这 aOl指令后， 以 1/3功 率的电流驱动 LED模块以状态一工作， 如图 5上部所示。 当日光感应芯 片感应到日光指数高于设定数值时， 发送信号 0011给微处理器， 微处理 器收到这一信号后， 触发芯片内电流开关指令 a00， 开关 a发出 aOO指令 给 6个 LED模块上的驱动芯片，驱动芯片关闭 LED模块的电流， 同时微 处理器发送信号给灯光感应芯片， 使灯光感应芯片停止工作。
灯光感应芯片在工作状态下， 感测到设定的车灯光强数值， 发送信 号 0101给微处理器， 微处理器收到这一信号后， 触发芯片内电流开关指 令 a02， 开关 a同时通过频道 al_a6发送指令 a02给 6个 LED模块上的驱 动芯片， 驱动芯片收到 a02指令后， 以 2/3功率的电流驱动 LED模块以 状态二工作， 如图 5中部所示。 在状态二工作 2-4秒后， 根据所在道路 限速标准决定， 微处理器发送开关指令 a03， 开关 a同时通过频道 al_a6 发送指令 a03给 6个 LED模块上的驱动芯片， 驱动芯片收到 a03指令后， 以全功率的电流驱动 LED模块以状态三工作， 如图 5下部所示。
如图 5所示， 状态一是驱动芯片接收到微处理器 aOl指令， 以 30微 秒一个周期给 6个 LED模块供电， 每个周期上电时间为 10微秒， 不上电 时间为 20微秒， 因此 6个 LED模块在 1/3时间亮灯工作， 在 2/3时间关 灯不工作，消耗电能只有全周期亮灯的 1/3。 由于 20微秒的时间极短， 人 眼是看不到灯熄灭的， 但会感觉到灯暗了 2/3。
状态二是驱动芯片接收到微处理器 a02指令， 以 30微秒一个周期给 6个 LED模块供电， 每个周期上电时间为 20微秒， 不上电时间为 10微秒， 因此 6个 LED模块在 2/3时间亮灯工作， 在 1/3时间关灯不工作， 消耗 电能只有全周期亮灯的 2/3。 由于 10微秒的时间极短， 人眼是看不到灯 熄灭的， 但会感觉到灯暗了 1/3。
状态三是驱动芯片接收到微处理器 a03指令， 以 30微秒一个周期给 6 个 LED模块供电， 每个周期上电时间为 30微秒， 不上电时间为 0微秒， 因 此 6个 LED模块在全部时间亮灯工作， 消耗电能为全周期亮灯的 100%， 人 眼看到灯是最亮的。 本实用新型能够感应日光和汽车灯光， 通过智能控制实现路灯亮度 随车流量的变动而调整光暗， 从而大幅度节省能源消耗并延长蓄电池在 连续阴雨天时的使用时间。
本实用新型通过微处理器， 用驱动芯片来驱动和控制 LED灯的安全使 用， 同时可在恒流稳压的基础上通过调整 LED发光时间长短调整 LED灯 的亮暗， 从而实现节能减排， 这是传统路灯不能做到的。
本实用新型使用寿命长， 光源寿命 50， 000小时以上， 是传统钠灯的 5〜10倍。 本实用新型使用目前技术最为成熟的白光 1W封装， 表面贴焊 在 2皿厚的铝基电路板上， 再把铝基板安装在散热铸铝灯罩上， 这样可 保障了 LED散热要求及使用寿命。
本实用新型采用 LED灯模块化一体设计， 可任意组合成不同功率及 亮度需求的产品， 每个 LED灯模块是一个独立的光源且可互换， 独立模 块故障不会影响整个灯具的正常工作。 在这个模块中， 驱动芯片和它所 驱动的 LED灯安装在一块条状铝基板上， 整条铝板可以方便拆卸及维护。
本实用新型工作电压低， 低于 60V, 其优点是不会像普通路灯那样因 高压吸附灰尘导致灯罩发黑， 而且安全可靠。 工作温度低， LED光源属于 冷光源， 散热良好时， 其工作温度低于 60° C， 不会引起灯罩老化发黄。
本实用新型超高频纯直流工作， 消除了传统路灯低频闪烁引起的视 觉疲劳。 耐冲击， 抗震力强， 显色指数高， 显色性好。 对颜色的呈现更 真实， 更鲜艳。绿色环保，不含铅， 汞等污染元素， 对环境没有任何污染。
本实用新型的芯片驱动恒流技术， 效率高， 热量低， 恒流精度高， 对电网无污染。 LED在现有条件下发出光的效率 75-1001m/w。 该路灯节 能效果明显， 与传统路灯相比， 在得到相同的路面照度前提下， 节约电 能 50%以上。
本实用新型是一个智能系统， 其前端装设光电感应芯片构成的日光 感应器、 灯光感应器， 在灯头上为每 15个 LED灯配装一个驱动芯片，这 些驱动芯片组成智能系统终端， 系统为前端芯片光电信号配置有源放大 器， 为终端驱动芯片配置信号延时触发器， 系统使用中央信号拾取与分 配功能的微处理器。 这种智能系统控制的 LED路灯具有高效、 安全、 节 能、 环保、 寿命长、 响应速度快、 显色指数高等独特优点， 可广泛应 用于城市道路照明， 国道省道照明及小区公园等的照明。智能系统可同 时适用于市电供电和太阳能供电两个型号的 LED路灯， 若是重点路段， 可采用市电和太阳能同时设置的方案，当有太阳时， 采用太阳能供电， 若 较长时间阴雨天时， 转用市电。
本实用新型具有 6-8米高的钢质灯杆， 铸铝制作的灯头外罩， 灯头 内装 90个 1瓦 LED灯， 它们每 15个 LED灯一组组成 6个 LED模块， 采 用 LED驱动芯片以及智能感应技术形成的三种发光状态致使 LED灯发 光。 LED模块灯条安装成 6个不同发光角， 使光源形成一个长条形光带沿 路面方向铺展， 可以使光源发出的光得到更有效的利用， 和不便控制发 光角度的传统光源相比， 可以用比较小的功率达到满足要求的局部照明 效果， 因而实现节能。 按目前光效， LED光电感应路灯 90W左右功率， 就 可以实现 250W钠灯对路面的照明效果。
本实用新型是在芯片的源头上进行新型 LED技术的开发， 那就是将 LED驱动芯片及 LED灯组合运行形成恒流驱动并实行分时使用的节能方 案。 在上半夜车辆较多时， 例如平均每 6秒钟通过一部车时， 它的全功 率， 2/3功率和 1/3功率工作时间各占 1/3， 平均功率是总功率的 2/3， 从 而减少了 1/3的电能功耗。在下半夜辆较少时， 例如平均 30秒通过一部 车时， 它基本上是以 1/3多 10%的电能功耗工作， 从而减少了将近 2/3的 电能功耗。 对于市电供电路灯，一夜平均下来它将节省总的电能使用的 45% 对于太阳能供电路灯， 它可让蓄电池全功率输出时间少于 1/3， 每 夜总电量输出少了 45%, 因此它比没有智能控制的太阳能供电路灯可在 连续阴雨天环境下工作更长时间。
无论是市电供电还是太阳能供电的本实用新型， 由于每个 LED灯模 块都使用了具有恒流和稳压功能的 LED驱动芯片， 使 LED灯在恒流和稳 压的电源环境下工作，从而避免了 LED灯因为外界电压波动造成烧毁或提 前衰减现象， 并使 LED灯出故障的机率减少 70%。 由于驱动芯片和 LED灯 可塑封在同一元件中， 形成与不受外界干扰的环境， 从而使驱动信号能 够正确地控制开关， 使 LED灯色纯正细赋， 亮度一致性好。

Claims

权 利 要 求 书 、 一种智能 LED路灯， 其特征在于： 包括微处理器， 分别与微处理器 连接的多个 LED灯模块、 日光感应器、灯光感应器， 以及提供直流电源 的供电模块。
、 根据权利要求 1所述的 LED路灯， 其特征在于： 所述供电模块包括 市电、 变压镇流， 市电经变压镇流输出直流电源。
、 根据权利要求 1所述的 LED路灯， 其特征在于： 所述供电模块包括 太阳能板、 蓄电池、 变压镇流， 太阳能板连接蓄电池， 蓄电池连接变压 镇流， 变压镇流输出直流电源。
、 根据权利要求 1所述的 LED路灯， 其特征在于： 所述供电模块包括 市电、 太阳能板、 蓄电池、 变压镇流， 太阳能板连接蓄电池， 蓄电池连 接变压镇流， 市电连接变压镇流， 变压镇流输出直流电源。
、 根据权利要求 3或 4所述的 LED路灯， 其特征在于： 所述太阳能板 设置在灯杆顶部。
、 根据权利要求 1所述的 LED路灯， 其特征在于： 所述灯光感应器包 括一个光电感应芯片，设置在灯杆的下部，所述日光感应器包括另一个 光电感应芯片， 设置在灯头的上部。
、 根据权利要求 1所述的 LED路灯， 其特征在于： 所述多个 LED灯模 块，其每一个 LED灯模块包括多个互相串联的 LED灯和 LED恒流驱动芯 片， 微处理器经 LED恒流驱动芯片驱动多个互相串联的 LED灯。
、 根据权利要求 7所述的 LED路灯， 其特征在于： 所述多个 LED灯模 块和微处理器均设置在灯头内。
、 根据权利要求 8所述的 LED路灯， 其特征在于： 所述灯头设有铸铝 灯罩， 所述多个 LED灯模块， 其每一个 LED灯模块的多个互相串联的 LED灯和驱动芯片用贴片方式安装在一条铝基板上， 多条铝基板并排与 铸铝灯罩接触安装， 所述微处理器与铸铝灯罩之间留有空隙。
0、 根据权利要求 9所述的 LED路灯， 其特征在于： 所述灯罩为内凸弧 面形。
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