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Publication numberCN100367827 C
Publication typeGrant
Application numberCN 02800705
PCT numberPCT/IB2002/000773
Publication date6 Feb 2008
Filing date14 Mar 2002
Priority date16 Mar 2001
Also published asCN1459216A, DE60221654D1, DE60221654T2, EP1374642A1, EP1374642B1, US6510995, US20020145041, WO2002076150A1
Publication number02800705.0, CN 02800705, CN 100367827 C, CN 100367827C, CN-C-100367827, CN02800705, CN02800705.0, CN100367827 C, CN100367827C, PCT/2002/773, PCT/IB/2/000773, PCT/IB/2/00773, PCT/IB/2002/000773, PCT/IB/2002/00773, PCT/IB2/000773, PCT/IB2/00773, PCT/IB2000773, PCT/IB2002/000773, PCT/IB2002/00773, PCT/IB2002000773, PCT/IB200200773, PCT/IB200773
InventorsS穆图, 劲 张
Applicant皇家菲利浦电子有限公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Apparatus for controlling light source
CN 100367827 C
Abstract  translated from Chinese
本发明披露了一种用于控制和调节用于零售陈列系统的陈列光的设备,该设备包括与多个光源关联、用于调节光源以选择性地陈列特定产品的计算机。 The present invention discloses a computer for controlling and adjusting the optical display apparatus for retail display system, the apparatus comprising a plurality of light sources is associated with, for adjusting the light source to selectively display a particular product. 根据对多种产品中的每种产品规定最佳照明条件的预存表和反馈实际照明条件的反馈回路,调节这些光源。 According to a variety of products in each product a predetermined prestored table and the actual feedback optimal lighting illumination condition feedback loop to adjust the light sources.
Claims(8)  translated from Chinese
1.用于对要被混合而形成预定颜色的光的多个光源进行控制的设备,所述设备包括: 多色传感器,用于检测每个所述光源发出的光量; 存储装置,用于存储指示期望每个所述光源发出的光量的预定值; 处理器,用于将检测的每个所述光源发出的光量与要求的每个所述光源发出的光量进行比较,并根据比较结果对所述光源的电源的输入值进行调节,其中被调节的所述值是脉宽调制(PWM)信号。 1. used to be mixed to form a predetermined color of light to control the plurality of light sources, the apparatus comprising: a multi-color sensor for detecting the amount of each of the light emitted from the light source; storing means for storing Each predetermined value indicative of a desired amount of light emitted from the light source; a processor for the amount of each of the light source emitted by the light detection amount of light required for each of the light source is compared, and based on the result of the comparison the value of said input light power is adjusted, wherein said adjustment value is the pulse width is modulated (PWM) signal.
2. 根据权利要求1所述的设备,其中被调节的所述PWM值至少是所述PWM信号的振幅或占空比之一。 2. The apparatus according to claim 1, wherein said PWM value adjusted is at least one of the amplitude or duty cycle of the PWM signal.
3. 根据权利要求1所述的设备,其中所述处理器与独立计算机相连,所述计算机包括用于根据测量条件和预定输入控制所述光源发出的光量的数据和软件。 3. The apparatus according to claim 1, wherein said processor is connected with a separate computer, said computer comprising means for measuring the conditions and in accordance with the predetermined input controlling the amount of light emitted by the light source data and software.
4. 根据权利要求3所述的设备,其中通过输入将要利用预定颜色的所述光陈列的产品,获得所述测量条件,并且所述预定输入是表示利用其陈列所述产品的预定颜色的存储值。 4. The apparatus according to claim 3, wherein the input to be by using the predetermined color light display of products, obtaining the measurement conditions, and the predetermined input is a display showing the use of its products stored predetermined color value.
5. 根据权利要求3所述的设备,其中所述测量条件是时间。 5. The apparatus according to claim 3, wherein said measurement condition is a time.
6. 根据权利要求1所述的设备,其中调节所述PWM信号以控制预定颜色和以所述颜色发出的光的光强。 6. The apparatus of claim 1, wherein adjusting the PWM signal to control the light intensity to a predetermined color and the color of the light emitted.
7. 根据权利要求1所述的设备,所述设备至少用于调节颜色和为了陈列要销售的产品而需发出的光强之一,所述设备包括:存储值表,所述存储值表示用于各种待陈列产品的多个光源中的每个光源的期望相对值;外部接口,用于从输入装置接收表示将要利用所述光陈列的产品的信息;以及控制逻辑,用于执行查表,并调节各光源的相对光强从而使所述光源发出所述要求存储值。 7. The apparatus of claim 1, wherein the device for adjusting at least one of color and light intensity in order to display products for sale and need issued, the apparatus comprising: a table stored value, the stored value is represented by various products to be exhibited in a plurality of light sources each light source in a desired relative value; the external interface for receiving from the input device to be represented using the light display of product information; and a control logic for executing a table and adjusting the relative light intensity of each light source such that the light source of the request stored value.
8. 根据权利要求7所述的设备,其中所述输入装置是条形码扫描器。 8. The apparatus according to claim 7, wherein said input means is a bar code scanner.
Description  translated from Chinese

光源控制设备技术领域本发明涉及商业陈列系统等,更具体地说,本发明涉及用于照亮这种商业陈列系统等的改进型设备。 Light source control TECHNICAL FIELD The present invention relates to commercial display systems and, more particularly, the present invention relates to an improved apparatus for lighting such commercial display systems and the like. 本发明特别可以应用于在零售环境下使用的商业冷藏系统,例如零售陈列水柜。 The invention is particularly applicable to commercial refrigeration system for use in a retail environment, such as retail display tanks. 背景技术基于红-绿-蓝(RGB)的白色发光二极管("LED")的发光过程在本技术领域内众所周知,它可以应用于背照LCD显示板、照亮商业水拒、标记等。 BACKGROUND Based red - green - blue (RGB) white light-emitting diode ("LED") of the emission process is well known in the art, it can be applied to the back-illuminated LCD display panel to illuminate commercial water-repellent, and other markings. 对于这些应用,可以采用线性电源或开关型电源驱动LED。 For these applications, you can use linear or switching power supply drive the LED. 采用线性电源的整个系统的效率低,而采用开关型电源克服了此问题。 Low efficiency linear power of the entire system, while the use of the switched-mode power supply overcomes this problem. 由于存在3种LED光源,所以根据适当电流控制方案,利用3 个独立电源驱动LED。 Due to the presence of three kinds of LED light source, so the current control scheme based on appropriate use of three independent power drive the LED. 在此配置中,每个电源可以含有独立AC/DC变换器、功率因数校正单元、隔离变压器以及DC/AC变换器系统。 In this configuration, each power supply may contain independent AC / DC converters, power factor correction unit, an isolation transformer and a DC / AC inverter system. 在此方案中,由于有3个独立AC/DC变换器、功率因数校正单元和隔离变压器,所以存在冗余。 In this scenario, since there are three independent AC / DC converters, power factor correction unit and the isolation transformer, there is redundancy. 此外,还要求单独控制电源内的各变换器。 It also requires a separate power control within each converter. 此方案会增加成本、提高控制的复杂度并降低性能。 This program will increase the cost, increase the complexity of the control and reduce performance. 在此说明的现有技术的另一个问题是,精确控制所发出的每种光的量。 Another problem of the prior art described herein is that precise control of the amount of each of the light emitted. 更具体地说,由红、绿和蓝发光二极管发出的光的组合产生的光的颜色主要由混合在一起的每种光的相对量确定。 More specifically, it is determined by the red, the color of light combination of green and blue light emitted from the light emitting diode is mainly produced by mixing together the relative amount of each color. 每种光的光源对寿命和温度以及其它因素具有不同的敏感度。 The life of each light source and temperature and other factors having different sensitivities. 因此,要保持适当量的每种颜色的光使得最终产生总光量合适即使有可能也是非常困难的。 Therefore, to maintain the proper amount of each color of light such that the end even though there may also be suitable to produce very difficult to the total light quantity. 当前系统中未解决的另一个问题是,在陈列箱或零售陈列冷藏设备内,用于陈列特定产品的光的种类和光量影响顾客的购买决定。 Another problem with the current system is not addressed in the display case or retail display refrigeration device, the type and amount of light for the display of a particular product affect the customer's purchase decisions. 现在没有哪种技术总能确保利用最佳光照条件陈列每种特定产品。 Which technology do not always ensure the best use of each specific product display lighting conditions. 发明内容根据本发明可以克服现有技术的上述以及其它问题,本发明涉及适用于商业陈列照明系统的LED电流驱动器。 Summary of the invention may overcome the above and other problems of the prior art According to the present invention, the present invention relates to a current driver for LED commercial display lighting system. 根据本发明,各驱动器以互相之间的特定比例驱动红、绿和蓝LED。 According to the present invention, each of the drivers in a specific ratio to each other between the driving red, green and blue LED. 反馈回路将颜色信息和光强 Information feedback loop color and light intensity

信息送到微处理器,微处理器调节红、绿、蓝各自的光量以实现规定的照明光强和照明颜色。 Information to the microprocessor, the microprocessor adjusting the red, green and blue to achieve a light intensity of each illumination intensity and illumination color specified. 在增强型实施例中,提供了计算机和存储器,以根据要陈列的特定产品或一天中的特定时间,确定所使用的光的光强和颜色。 In the enhanced embodiment, a computer and a memory, to display according to a particular product or a particular time of day, determine the intensity and color of light used. 具体地说, 计算机调节光的颜色和/或光强以在特定时间优化陈列,或者对特定产品进行优化陈列。 Specifically, the computer adjust the color of the light and / or light intensity to optimize the display at a specific time, or to optimize the display for a particular product. 在一个典型实施例中,利用微处理器控制AC分布电源系统将LED驱动电流送到白LED照明器以照亮商业冰柜。 In one exemplary embodiment, the use of microprocessor-controlled AC distributed power supply system, the LED drive current to the white LED illuminator to illuminate the commercial freezer. 该AC分布系统含有:前端AC/DC变换器,可以进行功率因数校正;高频逆变器; 隔离变压器;以及3个DC/AC变换器,具有RGB驱动电流控制系统。 The AC distributed system comprising: front-end AC / DC converters, power factor correction can be performed; high-frequency inverter; isolation transformer; and three DC / AC converter, with RGB drive current control system. 单个前端AC/DC变换器系统转换AC电源并保持恒DC链路电压作为高频DC/AC逆变器的输入。 Single front-end AC / DC converter to convert the AC power system and maintain a constant DC link voltage as high frequency DC / AC inverter input. AC/DC变换器还在AC电网上进行功率因数校正。 AC / DC converter is also an AC line power factor correction. 高频变换器将DC电压转换为AC电压,并利用LED驱动电流控制, 对3个AC/DC变换器提供电源。 The high frequency inverter DC voltage into an AC voltage, the LED drive current control and use of three AC / DC converter to provide power. 微处理器系统控制功率变换器系统。 The microprocessor system controls the power converter system. 除了对LED照明器产生的白色光进行控制外,微处理器系统还对该变换器系统提供集总闭环控制和PWM的生成。 In addition to the LED illuminators is controlled to produce white light, the microprocessor system is also provided to the converter system lumped closed loop control and the PWM generation. 该方法对LED驱动器系统提供了一种综合解决方案。 The method of the LED drive system provides an integrated solution. 微处理器系统的控制算法被设计为模块化并具有多处理特性,以提供微处理器系统的有效控制能力。 Microprocessor control algorithm is designed as a modular system and having multi-processing features, to provide effective control of the microprocessor system. 微处理器系统还可以选择性地连接到用户计算机,该计算机根据水拒内陈列的食品进行了编程。 The microprocessor system can also be selectively connected to the user's computer, the computer display according to water- and food within programmed. 在将特定食品陈列在冰柜内时,根据编程的用户优先权,商场内的计算机选择该系统应该产生的适当白色点和照明程度。 When a particular food in the freezer display, according to user preference programming, computer shopping choices within the system should generate an appropriate degree of white point and lighting. 该计算机在合适的时间将此信息送到微处理器系统,微处理器控制驱动系统产生要求的颜色和照明程度。 The computer at the right time this information to the microprocessor system, the microprocessor controls the drive system to produce the degree of color and lighting requirements. 因此,可以自动选择用于陈列食品的颜色和照明程度。 Thus, food can be automatically selected for display color and the degree of illumination. 计算机还可以以这样的方式开启或停止水柜驱动器,即在不需要时,自动关闭冰拒内的光,从而节省了电能。 Computers may also be in such a way to open or stop the water tank drive, i.e. when not needed, turn off the light automatically refuse within the ice, thereby conserving power. 在另一个增强型实施例中,该系统设计为从诸如手持键盘或条形码扫描器的输入装置接收数据。 In another enhanced embodiment, the system is designed to receive data from a keyboard or bar code scanner such as a handheld input device. 附图说明图1示出本发明典型实施例的总体方框图;图2示出与本发明一起使用的分布式电源的示意图;图3示出根据本发明典型实施例用于驱动发光二极管的分布式电源的第二实施例;以及图4示出用于选择照明系统的特定颜色的用户接口。 Figure 1 shows a typical block diagram of the present invention generally embodiment; Figure 2 shows a schematic view of the present invention is used in conjunction with distributed power sources; Figure 3 shows a embodiment for driving the light emitting diodes distributed according to an exemplary embodiment of the present invention The second embodiment of the power supply; and Figure 4 shows a user interface for selecting a particular color of the illumination system. 具体实施方式图1示出根据本发明典型实施例用于基于RGB LED的水柜驱动器的微处理器控制的AC电源系统的总图。 DETAILED DESCRIPTION Figure 1 shows an exemplary embodiment of the present invention is a general diagram for the drive RGB LED-based tanks of the microprocessor controlled AC power supply system. 前端AC/DC变换器10、高频DC/AC变换器20以及用于提供RGB LED驱动电流的3个负载端AC/DC 变换器30、 31和32提供电源。 Front-end AC / DC converter 10, high-frequency DC / AC converter 20 and for providing RGB LED drive current of three load end AC / DC converter 30, 31 and 32 to provide power. 该系统包括红、绿和蓝LED光源120、 130和140。 The system includes a red, green and blue LED light sources 120, 130 and 140. 每个红、绿和蓝LED光源均由多个适当串联和/或并联配置的LED构成。 Each of the red, green and blue LED light source by a plurality of appropriate series and / or parallel configuration of LED constituted. 光源内还有对白色光进行闭环反馈控制的诸如光敏二极管的光传感器和热沉温度传感器(未示出)。 There the light source of white light, such as a closed-loop feedback control photosensor photodiode and the heat sink temperature sensor (not shown). 将光源的光输出送到混合光学元件和光纤系统,以将该光传送到水柜或类似环境中。 The light output of the light source to the hybrid optical element and the fiber optic system, to the light transmitted to the tanks or similar environments. 然而,可以采用传送光的任何适当装置。 However, any suitable means for transmitting light may be employed. 微处理器系统50控制该系统。 The microprocessor system 50 to control the system. 微处理器系统利用反馈系统62将变量送到微处理器50。 The microprocessor system 62 using the feedback system variable to the microprocessor 50. 将控制信号送到PWM处理与隔离61用于控制DC/AC变换器20,如图所示。 The control signal to the PWM 61 for controlling the processing and isolating DC / AC converter 20, as shown in FIG. 通过调节所产生的PWM信号的振幅和/ 或占空比,调节送到每个驱动器30至32的功率。 Amplitude and / or by adjusting the duty cycle of the PWM signal generated by adjusting the power supplied to each drive 30 to 32 of the. 微处理器系统与用户接口和消息显示系统64相连。 The microprocessor system and the user interface and message display 64 is connected to the system. 或者通过红外通信或者通过串行/并行端口52,微处理器系统还与可选计算机51或计算机网络53相连。 Or, microprocessor system is also connected to a computer 51 or 53 with the optional infrared communication via a computer network or via serial / parallel port 52. 前端AC/DC变换器10的主要功能是将AC电压变换为DC电压。 Front-end AC / DC converter 10 is the main function of the AC voltage into a DC voltage. 此外,使AC/DC变换器IO在可能具有常规电压输入的AC电网进行功率因数校正。 In addition, make AC / DC converter may have conventional IO in the input AC voltage grid for power factor correction. 前端AC/DC变换器10基于回扫或升压拓朴结构。 Front-end AC / DC flyback converter 10 or boost topology based. 微处理器50实现用于输出电压和AC电网功率因数校正的反馈控制系统,微处理器50通过PWM处理与隔离器61输出所需控制信号。 The microprocessor 50 is used to achieve the output voltage and AC power factor correction feedback control system, the control signals required for the microprocessor 50 via PWM processing and output isolator 61. 微处理器50还产生PWM选通信号。 The microprocessor 50 also generates PWM gate signal. 为此,除了DC链路电压外,线电流也是反馈变量之一,它示于62。 To this end, in addition to the DC link voltage, the line current is also one of the feedback variables, which are shown in 62. 然后,微处理器5 0直接将PWM选通信号送到AC/D变换器10。 Then, the microprocessor 50 directly to the PWM gating signal supplied to AC / D converter 10. 可选地,还可以在外部实现功率因数校正和PWM处理功能。 Alternatively, it is also possible to achieve power factor correction and the PWM processing functions externally. 在这种情况下,AC/DC变换器含有用于进行PFC和PWM处理的必要功能块。 In this case, AC / DC converter contains the necessary function blocks for the PFC and PWM processing. 将AC/DC变换器系统的输出连接到高频DC/AC变换器系统20的输入部分。 The output AC / DC converter system is connected to the input portion of the high-frequency DC / AC converter system 20. DC/AC变换器系统将DC电压变换为高频AC电压。 DC / AC converter system converts the DC voltage high-frequency AC voltage. 或者利用谐振变换器拓朴结构,或者利用矩形波变换器拓朴结构实现DC/AC变换器。 Or take advantage of the resonant converter topology, or the use of square wave converter topologies to achieve DC / AC converter. 例如,图2示出基于谐振变换器拓朴结构的DC/AC变换器系统。 For example, Figure 2 shows a resonant converter topology based on DC / AC inverter system. 在图2中,谐振变换器系统基于与谐振回路201相连的半桥式变换器系统202。 In Figure 2, the resonant converter system is based on half-bridge converter system 201 connected to the resonant circuit 202. 可选地,也可以采用全桥式配置。 Alternatively, you can also employ a full-bridge configuration. 将该变换器的输出送到其输出与高频隔离变压器203相连的适当谐振回路。 The output of the converter to its output with a high frequency isolation transformer 203 is connected to a suitable resonant tank. 然后,该变压器驱动变换器30至32,如图所示。 Then, the converter drive transformer 30 to 32, as shown in FIG. 对于特定应用,可以做某些简化。 For specific applications, you can do some simplified. 例如,在光输出电平不高时,可以采用一些单级电路。 For example, in the optical output level is not high, some single stage circuits can be used. 图3示出图2所示电源系统的另一个实施例。 Another Figure 3 shows the power supply system shown in FIG. 2 embodiment. 图3所示的装置包括利用唯一功率因数校正过程运行的、并联的3个回扫变换器。 Apparatus shown in Figure 3 comprises a power factor correction process using a unique operation, in parallel three flyback converter. 在这种情况下,以输入电压的线路频率实现AC分布系统。 In this case, in order to realize the line frequency of the input AC voltage distribution system. 该系统也由微处理器50控制。 The system is also controlled by the microprocessor 50. 回头参考图1,将AC/DC变换器30至32的输出连接到RGB LED 光源,并将调节后的驱动电流送到LED光源120、 120和140。 Referring back to Figure 1, the output of AC / DC converters 30-32 are connected to the RGB LED light source, and adjusting the drive current to the LED light sources 120, 120 and 140. 可以将恒DC电流或PWM电流脉冲送到RGB LED光源。 Constant DC current or PWM current pulses may be supplied to RGB LED light sources. 为了根据公知技术控制白色光的颜色和照明程度,利用白色光控制系统确定DC电流的振幅或PWM电流脉冲的占空比。 According to the color and the degree of well-known techniques to control the illumination of white light using white light the control system determines the amplitude of the DC current or the duty ratio of the PWM current pulse. 该控制系统也可以由微处理器实现。 The control system may also be realized by a microprocessor. 如图1所示,适当光传感器40和热沉温度传感器41用于检测LED 的光输出和热沉温度。 As shown in Figure 1, a suitable optical sensor 40 and the heat sink temperature sensor 41 for detecting the light output of the LED and the heat sink temperature. 通过反馈电路62,将这些参数送到微处理器50。 Through the feedback circuit 62, these parameters to the microprocessor 50. 微处理器50计算白色照明器的颜色和照明程度。 The microprocessor 50 to calculate the degree of color and white light illuminators. 然后,微处理器50 求得要求的LED驱动电流或PWM选通脉宽。 Then, the microprocessor 50 to obtain the required LED drive currents or the PWM gating pulse widths. 然后,控制AC/DC变换器提供要求的LED驱动电流。 Then, the control AC / DC converter to provide the required LED drive current. 为了将反馈信号输入到微处理器系统,采用了反馈电路62。 For the feedback signal is input to the microprocessor system, using a feedback circuit 62. 反馈电路62包括用于将反馈信号直接送到微处理器系统5 0内的模数转换器161的检测与调节电路。 The feedback circuit 62 includes a feedback signal directly to the ADC 161 microprocessor system 50 in the detection and regulation circuit. 反馈变量可以包括:LED120、 130和140 输出的LED光输出、传感器41输出的热沉温度、LED驱动电流、DC链路电源和/或线电流。 Feedback variables may include: LED120, LED light 130 and 140 output output, the sensor 41 outputs the heat sink temperature, LED drive currents, DC link supply and / or line current. 反馈电路还包括故障检测电路,在出现故障时,该故障检测电路就产生中断。 Feedback circuit further includes a fault detection circuit, in the event of a fault, the fault detection circuit to generate an interrupt. 将故障检测电路的输出直接连接到微处理器系统内的不可掩蔽的中断。 The output of the fault detection circuit is directly connected to the microprocessor system can not be masked within the interrupt. 微处理器50直接提供PWM选通信号,该PWM选通信号首先通过隔离电路61。 The microprocessor 50 directly provides PWM gating signal, the PWM gate signal through isolation circuit 61 first. 将隔离电路的输出送到AC/DC变换器10、 DC/AC变换器20 以及LED驱动器30、 31和32内的专用MOSFET驱动器。 The isolation circuit output to AC / DC converter 10, DC / AC converter 20 and the LED driver 30, 31 and 32 dedicated within the MOSFET driver. 微处理器50还与用户接口系统63相连,用于手动选择白色发光二极管的颜色和照明程度。 The microprocessor 50 is also connected to a user interface system 63, for manually selecting the color and white light emitting diode lighting degree. 图4示出用户接口系统的典型实施例,该用户接口系统包括开关401至403以及开关解码逻辑电路404。 Figure 4 shows a user interface system exemplary embodiment, the user interface system includes a switch 401 to 403 and a switch decode logic circuit 404. 在开关闭合时,解码逻辑电路404检测到开关闭合,并输出数字形式的数据。 In the switch is closed, the decoding logic circuit 404 detects the switch closure and outputs the data in digital form. 利用红外通信或通过电缆或其它装置,将解码逻辑输出连接到微处理器。 Using infrared communication, or by cable or other means, the decode logic output is connected to the microprocessor. 用户接口63还包括用于启动或停止该系统的ON/OFF开关401,而且开关401还用于选择颜色和照明程度。 The user interface 63 further comprising means for starting or stopping the system ON / OFF switch 401, and switch 401 is also used to select the color and lighting degrees. 微处理器50还与消息显示系统64相连,消息显示系统64用于显示微处理器系统的状态,例如选择颜色、系统状况以及照明程度。 The microprocessor 50 is also connected with the message display system 64, 64 status message display system for displaying the microprocessor system, such as choosing colors, lighting conditions and the extent of the system. 微处理器50可以包括:至少一个CPU或DSP 160;诸如模数转换器和数模转换器的模拟接口装置161;诸如串行输入/输出、红外端口、 JTAG接口、数字端口的数字接口162;以及诸如存储器、定时器以及时钟的其它装置163。 The microprocessor 50 may include: at least one CPU or DSP 160; analog interface devices such as ADC and DAC 161; such as serial input / output, an infrared port, JTAG interface, digital digital interface port 162; and other devices 163 such as a memory, timers and clocks. 如果要在微处理器系统内实现所有控制功能和PWM处理,则可以采用具有一个以上微处理器的多处理器系统。 If you want to implement all control functions and PWM processing in the microprocessor system, you can use a multi-processor system with more than one microprocessor. 将用于检测光、LED驱动电流以及DC链路电压的反馈电路62的输出输入到模数转换器161,模数转换器161将模拟信号转换为控制算法使用的数字信号。 For detecting the light output, LED drive current and the DC link voltage feedback circuit 62 is input to the ADC 161, ADC 161 converts an analog signal into a digital signal control algorithm used. 微处理器系统还与计算机51相连,计算机51内含有关于食品以及将要陈列在冰拒内的食品的时间、日期的信息。 Microprocessor system is also connected to the computer 51, 51 contained within the computer time on food and food that will be on display at the ice repellent inside information dates. 还对计算机进行编程以根据要陈列的食品选择适当白色点和照明程度。 Also on the computer can be programmed to display food choices according to the appropriate extent of the white point and lighting. 通过红外端口, 或者通过串行端口或并行端口或者JTAG连接器,微处理器系统可以与该计算机相连。 Via the infrared port, or through a serial port or parallel port or a JTAG connector, the microprocessor system can be connected to the computer. 对微处理器系统适当配备有合适的接口系统来处理这种连通性。 Suitable for microprocessor systems equipped with a suitable interface system to handle the connectivity. 然后,根据要处理的食品,该计算机提供关于白色发光二极管的颜色和照明程度的信息。 Then, according to the food to be processed, the computer provides information on the color and the lighting level of the white light emitting diode. 因此,可以自动选择白色发光二极管的颜色和照明程度,并根据食品自动产生适当白色光。 Therefore, it can automatically select the color and white light-emitting diode lighting degree, and automatically generate the appropriate white light according to the food. 该计算机还含有关于商场营业时间的信息。 The computer also contains information about the mall business hours. 因此,可以在商场开始营业时它启动冰柜LED光源,而在商场停止营业时关闭该驱动器。 Therefore, it can open for business at the mall when it starts freezer LED light source, and in the mall to stop the operation to close the drive. 这种设计自动节省能源。 This design automatically to save energy. 可选地,计算机或者在本机存储所有产品的数据库,或者访问所有产品的数据库,而不存储使用时间。 Alternatively, the computer or in the machine store all product database, or database access to all products, without storing time. 在用户将产品放入冰柜时,他或她利用可选条形码阅读器、手持键盘或其它类似装置将它扫描到计算机内。 When the user the product into the freezer, he or she uses the optional barcode reader, keyboard, or other similar hand-held device will scan it into the computer. 然后,该计算机通过查表,根据该产品的存储信息,设置照明程度和颜色。 The computer then look-up table, based on the stored information of the product, the degree of lighting and color settings.

尽管以上对本发明优选实施例进行了说明,但是本技术领域内的技术人员可以设想对其做各种调整和附加。 While the above preferred embodiment of the invention have been described, but one skilled in the art may make various adjustments to its vision and additional. 这些调整属于所附权利要求所述的本发明范围。 These adjustments of the appended claims scope of the present invention.

Classifications
International ClassificationH05B37/02, H05B33/08
Cooperative ClassificationH05B33/0866, H05B33/0827, H05B33/0815
European ClassificationH05B33/08D3K4, H05B33/08D1L2P, H05B33/08D1C4
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