LED lighting in the ascendant domestic support six ministries

At the end of the Copenhagen climate summit sounded the clarion call of global energy conservation. In this context, LED lighting as a new energy-saving, environmental protection, alternative technologies, quickly became the government, capital and business condenser focus. As of the end of 2009 China has become the world's most important production base for LED lighting, the State Development and Reform Commission and other six ministries were jointly issued in October last year, the "views of the semiconductor lighting energy industry," for great support.

LED lighting can achieve energy saving

Currently, lighting accounts for about 20% of total world energy consumption is about. Statistical data show that only one energy-saving LED street lamps, each able to save about one of the Three Gorges Dam in China issued by the electricity.

It is because of energy-saving LED illumination that is, environmental advantages, in recent years to maintain its global production value of more than 20% annual growth, China has initiated a green lighting, semiconductor lighting project, "10 City, 10000," plans to promote The industry, in 2008 total output value of China's semiconductor lighting nearly 70 billion yuan. Also, actively involved in investment capital from various quarters LED industry, investment has grown rapidly, only the first half of 2009 throughout the country launched the LED total investment budget has more than 20 billion yuan.

"Although China's LED industry investment and capacity expansion is accelerating, LED lighting manufacturers more than 3000, but 70% of the focus on the downstream part of the integration of applications, the lack of upstream core technologies, and because of generally small-scale enterprises and the lack of standards, product variable quality. "According to the Shenzhen Science and Technology Chairman Wu Han Tian Zhen Yue introduction, and now many mainland cities in developing LED lighting demonstration projects and alternative project, but LED lighting is also limited slip road to the district, Walking Street, Application limited, in particular, is of varying quality LED lighting products. He said: "I once drove through a rainy city LED demonstration Road, more than 20 bar LED lights shine only 23."

LED lights use low cost

At present, there is "definitely the high cost of new technology," the error, making LED lighting applications in the domestic market is urgently to be popular. "In fact, that the high cost of LED lighting is a one-sided views." Wu Zhen Yue told reporters that road lighting is now widely used high-pressure sodium lamp only a few hundred dollars, LED energy saving lamps will have to a few thousand dollars, the cost deduced LED high, does not hold. Wu Chun Lok further explained: "The traditional lighting methods require the laying of cables, this is a cheap cost, at the same time, the traditional sodium lamp life is short, generally about a year on the need to replace the lamps, and high maintenance costs later repaired, if count all these costs, LED lighting costs than traditional sodium lights would not be much difference."

"LED lighting with less power consumption, long life and other advantages. A traditional sodium or less a year to consume electricity worth about 2,300, while natural to LED lights using solar energy, wind energy, fluid energy, completely saved this part of the costs. to John Field of technology use LED lights conservative five-year terms, one could save 11,500 yuan. "Wu Zhen Yue such an account for our calculations. "In addition, LED lights can also be naturally able to achieve the effect of light rain and stability." Wu Zhen Yue think, LED lighting energy industry should strengthen technological innovation and accelerate development.

A cost effective approach for measuring out-of-home Media

The portable meter is certainly an interesting concept that requires consideration when measuring out-of-home exposure of various kinds of media, including television. Several papers and conferences have been offered during the last few years about the use of portable meters and various tests are currently being undertaken by the developing groups and potential users to determine the feasibility of this concept in a real environment, in each type of out of home media can be measured.

 Two kinds of portable meters have been offered so far in two different formats: pagers and wristwatches. Moreover, two alternative technologies have been under test comprising -audio coding- and -audio matching- techniques. All these devices were originally proposed as a way of measuring radio audiences only. For this purpose, a panel of individuals would each be equipped with a portable meter that would be worn by the respondents at all times. A panel comprising only of portable meters (hereafter a -portable-only- panel) has always been seen as a logical proposition for radio measurement, since in this case most of the radio listening happens out of home, in cars, at work, bars, etc., while only a small portion is contributed by in-home listening.

 It would be redundant to point out the differences between radio and television as broadcasting media; much has already been explained and discussed in the sense of being essentially different, starting from the fact that one requires all the attention from spectators (television, which keeps viewers' eyes and ears busy), while the other one requires only the audible spectrum to be busy, leaving vision free to perform other simultaneous tasks. This essential difference, for example, makes radio listening compatible with the act of driving a car, whereas watching television while driving is undoubtedly deemed a highly dangerous practice. Another basic difference between radio listening and television viewing is that the first one is mostly an individual experience, whereas the second one is more likely to be shared among two or more simultaneous viewers.

 Further essential differences could be easily pointed out, although the above ones alone should be enough to show the reader that we are considering two different broadcasting media having very specific characteristics, and that any serious audience measurement project should at least take these differences into account when defining appropriate measurement systems and methods.

 What can be expected from Measuring Out-Of-Home Viewing? A thorough analysis about the cost effectiveness of any measurement method should take into account as well the expected range of the measured variables, comparing this with the cost of achieving such result.

 Most available sources show that total OOH viewing may account for about 5% to 10% of total viewing (depending on a number of factors) while about 50% (in some cases a figure of 75% has been proposed) of that viewing accounts for guest viewing (watching TV in somebody else's home) (see for example: -Is Anybody Home?-, the paper from the 2002 European Television Symposium - ASI). This means that the total contribution to viewing that could be expected from measuring OOH viewing (that does not happen in another home) is in the range of 5% at most. In other words, the kind of viewing that would be directly associated with the use of a portable meter in TV audience measurement is about 1/20th of the total viewing to be measured. This opens the question of how much accuracy would be required or justified in measuring out of home media viewing.

 DESCRIPTION OF PROPOSED APPROACH The key concept behind the proposed approach is that a marginal problem calls for a marginal solution. The proposed approach comprises adding some mobile measurement to an existing home-based TAM panel, to the extent necessary to capture the marginal Out of Home media viewing that cannot be captured by fixed meters. This mixed approach has been given the name -Supplementary Mobile Panel- (or -SMP- for short). In the SMP approach, a portion of the existing panel homes is equipped with mobile devices (mobile devices are assigned at a home level; as opposed to individuals). The mobile devices are preferably in a -pager- format and are equipped with a docking station that is placed somewhere in the home (preferably close to the home's main entrance) where the devices are docked whenever they are not in use. One docking station is shared among several devices. Panel members belonging to SMP homes (hereafter -SMP members-) are requested to wear the portable meters only while they are out of home. In other words, inside their homes, SMP members' viewing habits are measured as any other fixed meter panel member.

 Upon arrival to their homes, the SMP members are required to place their portable devices into the docking station where all the information captured out of home is downloaded and transmitted to the same communications device serving all other fixed meters in the home. Preferably, the information captured by the mobile devices is in the same format as the information generated by fixed devices, so that it can be seamlessly integrated with all existing information and processed using substantially the same system and methods.