技术领域technical field
本发明涉及的是一种通过温度测量监测LED照明用灯运行状态的方法，属于LED照明用灯技术领域。The invention relates to a method for monitoring the operating state of an LED lighting lamp through temperature measurement, and belongs to the technical field of LED lighting lamps.
背景技术Background technique
LED照明用灯是利用第四代绿色光源LED做成的一种照明灯具。LED被称为第四代照明光源或绿色光源，具有节能、环保、寿命长、体积小等特点，可以广泛应用于各种指示、显示、装饰、背光源、普通照明和城市夜景等领域。但LED散热却是LED照明中非常头痛的问题，成了LED照明灯普及发展道路上的障碍，LED照明灯体在实际使用过程中各个部份温度的变化都会对LED整个灯体运行状态产生很大的影响，而外界的变化或LED灯体自身结构的异常都会影响LED照明用灯的正常工作，使其寿命减短或损坏。LED lighting lamp is a kind of lighting fixture made of the fourth generation green light source LED. LED is called the fourth-generation lighting source or green light source. It has the characteristics of energy saving, environmental protection, long life, and small size. It can be widely used in various indications, displays, decorations, backlights, general lighting and urban night scenes. However, LED heat dissipation is a very troublesome problem in LED lighting, and it has become an obstacle on the road to the popularization and development of LED lighting. However, changes in the outside world or abnormalities in the structure of the LED lamp body will affect the normal operation of the LED lighting lamp, shortening or damaging its life.
发明内容Contents of the invention
本发明提出的是一种通过温度测量监测LED照明用灯运行状态的方法，其目的是通过温度测量监测判断LED照明用灯运行状态，并预测此状态下LED灯体的剩余工作寿命，方便维护管理人员及时发现问题、排除故障。The present invention proposes a method for monitoring the operating state of LED lighting lamps through temperature measurement, the purpose of which is to judge the operating state of LED lighting lamps through temperature measurement and monitoring, and predict the remaining working life of the LED lamp body in this state, so as to facilitate maintenance Managers find problems and troubleshoot in time.
本发明的技术解决方案：一种通过温度测量监测LED照明用灯运行状态的方法，包括判断LED灯体运行状态是否良好及出现异常部位及预测此状态下LED灯体的剩余工作寿命；The technical solution of the present invention: a method for monitoring the operating state of LED lighting lamps through temperature measurement, including judging whether the operating state of the LED lamp body is good and abnormal parts, and predicting the remaining working life of the LED lamp body in this state;
所述的判断LED灯体运行状态是否良好及出现异常部位的方法，包括The method for judging whether the running state of the LED lamp body is good or not and where there are abnormal parts includes
（1）设温度测量监测系统中的A温度感应器、B温度感应器、C温度感应器所测得的温度分别设为T1、T2、T3，灯体周围的环境温度设为T4；(1) Set the temperature measured by A temperature sensor, B temperature sensor, and C temperature sensor in the temperature measurement and monitoring system as T1 , T2 , and T3 respectively, and set the ambient temperature around the lamp body as T4 ;
（2）计算LED灯体中任意两点的热阻，包括(2) Calculate the thermal resistance of any two points in the LED lamp body, including
1）LED发光组件与散热模组中散热基板之间的热阻设为R1，R1= T1- T2/ P；1) The thermal resistance between the LED light-emitting component and the heat dissipation substrate in the heat dissipation module is set to R1 , R1 = T1 - T2 / P;
2）散热模组中散热基板与散热鳍片下端之间的热阻设为R2，2) The thermal resistance between the heat dissipation substrate and the lower end of the heat dissipation fin in the heat dissipation module is set to R2 ,
R2= T2- T3/ P；R2 = T2 - T3 /P;
3）散热模组中散热鳍片与周围空气之间的界面热阻设为R3，3) The interface thermal resistance between the cooling fins and the surrounding air in the cooling module is set to R3 ,
R3= T3- T4/ P；R3 = T3 - T4 /P;
上式中P为LED发光组件所产生的热耗散功率，当LED照明用灯工作状态稳定后，各测温点处的温度将会处在稳定不变的状态下，当某位置所测温度发生明显变化时，判断出其相应位置处的热阻发生了变化，确定位置后便对相应位置做维护检查，迅速找到问题根源，排除障碍；In the above formula, P is the heat dissipation power generated by the LED light-emitting components. When the LED lighting lamp is in a stable working state, the temperature at each temperature measurement point will be in a stable state. When the temperature measured at a certain position When a significant change occurs, it is judged that the thermal resistance at the corresponding position has changed, and after the position is determined, maintenance and inspection of the corresponding position is performed to quickly find the root cause of the problem and eliminate obstacles;
所述的判断LED灯体剩余工作寿命的方法，包括The method for judging the remaining working life of the LED lamp body includes
1）温度测量监测系统中的A温度感应器所测得的温度T1近似等于LED发光光源的工作温度，当其为标准工作温度N K时，LED照明用灯的工作寿命为L0 ，当A温度感应器所测得的温度不断升高时，在此温度下LED照明用灯的工作寿命相应的缩短，设A温度感应器的温度T1为不同值时，LED照明用灯相对应的工作寿命为L，L≈εL0，ε为LED照明用灯在实际工作温度下与在标准温度下工作寿命的比值，每个温度下所对应的ε不同，由所使用的LED发光光源决定，当T1为标准工作温度N K时，ε=1；1) The temperature T1 measured by the A temperature sensor in the temperature measurement and monitoring system is approximately equal to the operating temperature of the LED light source. When it is the standard operating temperature NK, the working life of the LED lighting lamp is L0 . When A When the temperature measured by the temperature sensor continues to rise, the working life of the LED lighting lamp will be shortened correspondingly at this temperature. When the temperature T1 of the temperature sensor A is different values, the corresponding working life of the LED lighting lamp The life is L, L≈εL0 , ε is the ratio of the working life of the LED lighting lamp at the actual working temperature to the standard temperature, and the corresponding ε is different at each temperature, which is determined by the LED light source used. When T1 is the standard working temperature NK, ε=1;
2）当A温度感应器所测得的温度为某个值时，将在此之前LED照明用灯已经使用的累计工作时间换算为标准工作温度下的工作时间，设为L1，2) When the temperature measured by the A temperature sensor is a certain value, the accumulated working time of the LED lighting lamps used before is converted into the working time under the standard working temperature, which is set as L1 ,
L1 ≈t1/ε1+ t2/ε2+ t3/ε3+……+ tn/εnL1 ≈t1 /ε1 + t2 /ε2 + t3 /ε3 +…+ tn /εn
式中t1，t2 ，t3，……，tn为被监测灯体光源在所监测到的工作温度之前已经经过的n个不同工作温度下各自所对应的实际持续工作时间；ε1，ε2，ε3，……，εn为各工作温度下所对应的ε值；则灯体在目前所监测的工作温度下运行时，灯体剩余工作寿命设为L2；In the formula, t1 , t2 , t3 ,..., tn are the actual continuous working time corresponding to each of the n different working temperatures that the light source of the monitored lamp body has passed before the monitored working temperature; ε1 , ε2 , ε3 ,..., εn are the corresponding ε values at each working temperature; when the lamp body is running at the currently monitored working temperature, the remaining working life of the lamp body is set to L2 ;
L2≈（L0-L1）εn+1= {L0-（t1/ε1+ t2/ε2+ t3/ε3+……+ tn/εn）}εn+1L2 ≈(L0 -L1 )εn+1 = {L0 -(t1 /ε1 + t2 /ε2 + t3 /ε3 +…+tn /εn )}εn +1
式中，εn+1为所监测到的LED灯体发光光源目前工作温度下的ε值。In the formula, εn+1 is the ε value of the monitored LED lamp body light source at the current working temperature.
本发明的优点：通过此系统，可以很容易查看LED照明用灯实际工作中的运行状态，并能预测在此运行状态下LED灯体剩余的工作寿命，有利于及时发现问题、排除故障，方便日常维修。Advantages of the present invention: through this system, it is easy to check the operating state of the LED lighting lamp in actual work, and can predict the remaining working life of the LED lamp body in this operating state, which is conducive to timely discovery of problems and troubleshooting, which is convenient Routine maintenance.
附图说明Description of drawings
图1是判断LED照明用灯运行状态用的温度测量监测系统的结构示意图。Fig. 1 is a structural schematic diagram of a temperature measurement and monitoring system for judging the operating state of LED lighting lamps.
图中1是LED发光组件；2是散热模组；3是A温度感应器；4是B温度感应器；5是C温度感应器；6是单片机；7是显示面板；8是报警器。In the figure, 1 is an LED light-emitting component; 2 is a heat dissipation module; 3 is a temperature sensor A; 4 is a B temperature sensor; 5 is a C temperature sensor; 6 is a single-chip microcomputer; 7 is a display panel; 8 is an alarm.
具体实施方式detailed description
一种通过温度测量监测LED照明用灯运行状态的方法，包括判断LED灯体运行状态是否良好及出现异常部位及预测此状态下LED灯体的剩余工作寿命。A method for monitoring the operating state of an LED lighting lamp through temperature measurement, including judging whether the operating state of the LED lamp body is good and abnormal parts, and predicting the remaining working life of the LED lamp body in this state.
所述的判断LED灯体运行状态是否良好及出现异常部位的方法，包括The method for judging whether the running state of the LED lamp body is good or not and where there are abnormal parts includes
（1）设温度测量监测系统中的A温度感应器、B温度感应器、C温度感应器所测得的温度分别设为T1、T2、T3，灯体周围的环境温度设为T4；(1) Set the temperature measured by A temperature sensor, B temperature sensor, and C temperature sensor in the temperature measurement and monitoring system as T1 , T2 , and T3 respectively, and set the ambient temperature around the lamp body as T4 ;
（2）计算LED灯体中任意两点的热阻，包括(2) Calculate the thermal resistance of any two points in the LED lamp body, including
1）LED发光组件与散热模组中散热基板之间的热阻设为R1，R1= T1- T2/ P；1) The thermal resistance between the LED light-emitting component and the heat dissipation substrate in the heat dissipation module is set to R1 , R1 = T1 - T2 / P;
2）散热模组中散热基板与散热鳍片下端之间的热阻设为R2，2) The thermal resistance between the heat dissipation substrate and the lower end of the heat dissipation fin in the heat dissipation module is set to R2 ,
R2= T2- T3/ P；R2 = T2 - T3 /P;
3）散热模组中散热鳍片与周围空气之间的界面热阻设为R3，3) The interface thermal resistance between the cooling fins and the surrounding air in the cooling module is set to R3 ,
R3= T3- T4/ P；R3 = T3 - T4 /P;
上式中P为LED发光组件所产生的热耗散功率，当LED照明用灯工作状态稳定后，各测温点处的温度将会处在稳定不变的状态下，当某位置所测温度发生明显变化时，判断出其相应位置处的热阻发生了变化，确定位置后便对相应位置做维护检查，迅速找到问题根源，排除障碍。In the above formula, P is the heat dissipation power generated by the LED light-emitting components. When the LED lighting lamp is in a stable working state, the temperature at each temperature measurement point will be in a stable state. When the temperature measured at a certain position When there is an obvious change, it is judged that the thermal resistance at the corresponding position has changed. After the position is determined, maintenance and inspection are performed on the corresponding position to quickly find the root cause of the problem and eliminate obstacles.
所述的判断LED灯体剩余工作寿命的方法，包括The method for judging the remaining working life of the LED lamp body includes
1）温度测量监测系统中的A温度感应器所测得的温度T1近似等于LED发光光源的工作温度，当其为标准工作温度N K时，LED照明用灯的工作寿命为L0 ，当A温度感应器所测得的温度不断升高时，在此温度下LED照明用灯的工作寿命相应的缩短，设A温度感应器的温度T1为不同值时，LED照明用灯相对应的工作寿命为L，L≈εL0，ε为LED照明用灯在实际工作温度下与在标准温度下工作寿命的比值，每个温度下所对应的ε不同，由所使用的LED发光光源决定，当T1为标准工作温度N K时，ε=1；1) The temperature T1 measured by the A temperature sensor in the temperature measurement and monitoring system is approximately equal to the operating temperature of the LED light source. When it is the standard operating temperature NK, the working life of the LED lighting lamp is L0 . When A When the temperature measured by the temperature sensor continues to rise, the working life of the LED lighting lamp will be shortened correspondingly at this temperature. When the temperature T1 of the temperature sensor A is different values, the corresponding working life of the LED lighting lamp The life is L, L≈εL0 , ε is the ratio of the working life of the LED lighting lamp at the actual working temperature to the standard temperature, and the corresponding ε is different at each temperature, which is determined by the LED light source used. When T1 is the standard working temperature NK, ε=1;
2）当A温度感应器所测得的温度为某个值时，将在此之前LED照明用灯已经使用的累计工作时间换算为标准工作温度下的工作时间，设为L1，2) When the temperature measured by the A temperature sensor is a certain value, the accumulated working time of the LED lighting lamps used before is converted into the working time under the standard working temperature, which is set as L1 ,
L1 ≈t1/ε1+ t2/ε2+ t3/ε3+……+ tn/εnL1 ≈t1 /ε1 + t2 /ε2 + t3 /ε3 +…+ tn /εn
式中t1，t2 ，t3，……，tn为被监测灯体光源在所监测到的工作温度之前已经经过的n个不同工作温度下各自所对应的实际持续工作时间；ε1，ε2，ε3，……，εn为各工作温度下所对应的ε值；则灯体在目前所监测的工作温度下运行时，灯体剩余工作寿命设为L2；In the formula, t1 , t2 , t3 ,..., tn are the actual continuous working time corresponding to each of the n different working temperatures that the light source of the monitored lamp body has passed before the monitored working temperature; ε1 , ε2 , ε3 ,..., εn are the corresponding ε values at each working temperature; when the lamp body is running at the currently monitored working temperature, the remaining working life of the lamp body is set to L2 ;
L2≈（L0-L1）εn+1= {L0-（t1/ε1+ t2/ε2+ t3/ε3+……+ tn/εn）}εn+1L2 ≈(L0 -L1 )εn+1 = {L0 -(t1 /ε1 + t2 /ε2 + t3 /ε3 +…+tn /εn )}εn +1
式中，εn+1为所监测到的LED灯体发光光源目前工作温度下的ε值。In the formula, εn+1 is the ε value of the monitored LED lamp body light source at the current working temperature.
下面结合附图和具体实施方式对本发明的实施例进行详细说明。Embodiments of the present invention will be described in detail below in conjunction with the drawings and specific implementation methods.
对照图1，判断LED照明用灯运行状态用的温度测量监测系统，其结构包括A温度感应器3、B温度感应器4、C温度感应器5、单片机6、显示面板7和报警器8，其中A温度感应器3与LED照明灯体中LED发光组件1相接，B温度感应器4与散热模组2的上表面相接，C温度感应器5与散热模组中的散热鳍片外端相对应的温度点测试位置相接；三个温度感应器的温度信号输出端与单片机6的温度信号输入端对应相接，单片机6的数据的处理结果通过其数据处理结果输出端与显示面板、报警器（现有）的信号输入端相接。Referring to Figure 1, the temperature measurement and monitoring system for judging the operating status of LED lighting lamps has a structure including A temperature sensor 3, B temperature sensor 4, C temperature sensor 5, single-chip microcomputer 6, display panel 7 and alarm 8, Wherein A temperature sensor 3 is connected with the LED light-emitting assembly 1 in the LED lighting lamp body, B temperature sensor 4 is connected with the upper surface of the heat dissipation module 2, and C temperature sensor 5 is connected with the heat dissipation fins in the heat dissipation module. The corresponding temperature point test positions of the terminals are connected; the temperature signal output terminals of the three temperature sensors are correspondingly connected with the temperature signal input terminals of the single-chip microcomputer 6, and the processing results of the data of the single-chip microcomputer 6 are connected to the display panel through its data processing result output terminals. , The signal input terminals of the alarm (existing) are connected.
所述的LED照明灯体包括LED发光组件、散热模组以及构成LED照明用灯的其它部件。The LED lighting lamp body includes an LED lighting assembly, a heat dissipation module and other components constituting the LED lighting lamp.
所述的LED发光组件包括LED发光光源和固定LED发光光源的线路基板，A温度感应器3测温点通过线路基板上相关线路与LED光源连接，因此A温度感应器3所测温度可近似等于LED发光光源的工作温度。The LED light-emitting assembly includes an LED light source and a circuit substrate for fixing the LED light source, and the A temperature sensor 3 temperature measurement point is connected to the LED light source through a relevant line on the circuit substrate, so the temperature measured by the A temperature sensor 3 can be approximately equal to The operating temperature of the LED light source.
所述的散热模组包括散热基板和散热鳍片两部分，在散热基板上的表面和散热鳍片的外端分别设有测温点，LED发光组件固定在散热基板上，两者之间可填充导热类物质。The heat dissipation module includes two parts: a heat dissipation substrate and a heat dissipation fin. Temperature measuring points are respectively arranged on the surface of the heat dissipation substrate and the outer ends of the heat dissipation fins. Filled with heat-conducting substances.
所述的温度感应器用于测试各个不同测温点的温度，测温点的数量和具体位置可根据实际LED照明用灯的结构和需要来调整。The temperature sensor is used to test the temperature of various temperature measuring points, and the number and specific positions of the temperature measuring points can be adjusted according to the structure and needs of the actual LED lighting lamp.
所述的显示面板用于将单片机处理的结果显示出来，供维护人员查看。The display panel is used to display the processing results of the single chip microcomputer for viewing by maintenance personnel.
所述的报警器可根据单片机传输的触发信号来提供报警，使重大异常情况及时被人发现。The alarm can provide an alarm according to the trigger signal transmitted by the single-chip microcomputer, so that major abnormal situations can be discovered in time.
本发明中，A温度感应器3、B温度感应器4、C温度感应器5所测得的温度分别设为T1、T2、T3，灯体周围的环境温度设为T4，对于一个具体的LED照明用灯，其LED发光组件所产生的热耗散功率P基本不变；LED灯体中任意两点的热阻R可通过系统稳定时两者之间的温差与热耗散功率的比值求出。In the present invention, the temperatures measured by A temperature sensor 3, B temperature sensor 4, and C temperature sensor 5 are respectively set as T1 , T2 , and T3 , and the ambient temperature around the lamp body is set as T4 . For a specific LED lighting lamp, the heat dissipation power P generated by its LED light-emitting components is basically unchanged; the thermal resistance R of any two points in the LED lamp body can be determined by the temperature difference and heat dissipation between the two when the system is stable. Calculate the power ratio.
本实施例中，LED发光组件与散热模组中散热基板之间的热阻设为R1，R1= T1- T2/ P；In this embodiment, the thermal resistance between the LED lighting assembly and the heat dissipation substrate in the heat dissipation module is set to R1 , and R1 = T1 - T2 /P;
散热模组中散热基板与散热鳍片下端之间的热阻设为R2，The thermal resistance between the heat dissipation substrate and the lower end of the heat dissipation fin in the heat dissipation module is set to R2 ,
R2= T2- T3/ P；R2 = T2 - T3 /P;
散热模组中散热鳍片与周围空气之间的界面热阻设为R3，The interface thermal resistance between the cooling fins and the surrounding air in the cooling module is set to R3 ,
R3= T3- T4/ P；R3 = T3 - T4 /P;
由以上可以看出，当LED照明用灯工作状态稳定后，各测温点处的温度将会处在稳定不变的状态下，当某位置所测温度发生明显变化时，可判断出其相应位置处的热阻发生了变化，确定位置后便可对相应位置做维护检查，迅速找到问题根源，排除障碍。It can be seen from the above that when the working state of the LED lighting lamp is stable, the temperature at each temperature measurement point will be in a stable state. When the temperature measured at a certain position changes significantly, it can be judged that its corresponding The thermal resistance at the position has changed. After the position is determined, maintenance and inspection can be carried out on the corresponding position to quickly find the root cause of the problem and eliminate obstacles.
另外，A温度感应器3所测得的温度T1近似等于LED发光光源的工作温度，当其为标准工作温度N K时，LED照明用灯的工作寿命为L0 ，当A温度感应器3所测得的温度不断升高时，在此温度下LED照明用灯的工作寿命相应的缩短，设A温度感应器3的温度T1为不同值时，LED照明用灯相对应的工作寿命为L，L≈εL0，ε为LED照明用灯在实际工作温度下与在标准温度下工作寿命的比值，每个温度下所对应的ε不同，由所使用的LED发光光源决定，可根据实际所用的LED发光光源相应规格参数代入具体数值，当T1为标准工作温度N K时，ε=1。In addition, the temperature T1 measured by the A temperature sensor 3 is approximately equal to the operating temperature of the LED light source. When it is the standard operating temperature NK, the working life of the LED lighting lamp is L0 . When the measured temperature continues to rise, the working life of the LED lighting lamp is correspondingly shortened at this temperature. When the temperature T1 of the A temperature sensor3 is set to different values, the corresponding working life of the LED lighting lamp is L , L≈εL0 , ε is the ratio of the working life of the LED lighting lamp at the actual working temperature to the standard temperature, the corresponding ε at each temperature is different, it is determined by the LED light source used, and can be used according to the actual The corresponding specification parameters of the LED light source are substituted into specific values. When T1 is the standard working temperature NK, ε=1.
因此，当A温度感应器3所测得的温度为某个值时，将在此之前LED照明用灯已经使用的累计工作时间换算为标准工作温度下的工作时间，可设为L1，Therefore, when the temperature measured by the A temperature sensor 3 is a certain value, the cumulative working time of the LED lighting lamps used before is converted into the working time at the standard working temperature, which can be set as L1 ,
L1 ≈t1/ε1+ t2/ε2+ t3/ε3+……+ tn/εnL1 ≈t1 /ε1 + t2 /ε2 + t3 /ε3 +…+ tn /εn
其中t1，t2 ，t3，……，tn为被监测灯体光源在所监测到的工作温度之前已经经过的n个不同工作温度下各自所对应的实际持续工作时间；ε1，ε2，ε3，……，εn为各工作温度下所对应的ε值；则灯体在目前所监测的工作温度下运行时，灯体剩余工作寿命设为L2；Among them, t1 , t2 , t3 ,..., tn are the actual continuous working time corresponding to each of the n different working temperatures that the light source of the monitored lamp body has passed before the monitored working temperature; ε1 , ε2 , ε3 ,..., εn are the corresponding ε values at each working temperature; when the lamp body is running at the currently monitored working temperature, the remaining working life of the lamp body is set to L2 ;
L2≈（L0-L1）εn+1= {L0-（t1/ε1+ t2/ε2+ t3/ε3+……+ tn/εn）}εn+1L2 ≈(L0 -L1 )εn+1 = {L0 -(t1 /ε1 + t2 /ε2 + t3 /ε3 +…+tn /εn )}εn +1
式中，εn+1为所监测到的LED灯体发光光源目前工作温度下的ε值。In the formula, εn+1 is the ε value of the monitored LED lamp body light source at the current working temperature.
本发明通过温度测量监测LED照明用灯运行状态，可应用在各式LED照明用灯中，通过此方法可对LED照明用灯的运行状态进行实时监控，并能预测此状态下工作时LED照明用灯的剩余工作寿命，方便维护管理人员及时发现问题、排除故障。The invention monitors the operating state of LED lighting lamps through temperature measurement, and can be applied to various LED lighting lamps. Through this method, the operating state of LED lighting lamps can be monitored in real time, and LED lighting can be predicted when working in this state. Use the remaining working life of the lamp to facilitate maintenance and management personnel to find problems and troubleshoot in time.
以上所述，仅是本发明的一个具体实施例而已，并非是对本发明作其它形式的限制，对于本领域的技术人员在技术方案范围内进行的通常变化和替换，在不脱离本发明创造构思的前提下，所做出的任何改进都应该包括在本发明的保护范围内。The above is only a specific embodiment of the present invention, and is not intended to limit the present invention to other forms. For those skilled in the art, the usual changes and replacements within the scope of the technical solutions do not depart from the inventive concept of the present invention. Under the premise, any improvement made should be included in the protection scope of the present invention.
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| CN201310394058.4ACN103454568B (en) | 2013-09-03 | 2013-09-03 | A method for monitoring the operating state of LED lighting lamps through temperature measurement |
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| CN201310394058.4ACN103454568B (en) | 2013-09-03 | 2013-09-03 | A method for monitoring the operating state of LED lighting lamps through temperature measurement |
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