Is the LED display entering the rural high or over-constructed?

With the continuous development of rural informatization, more and more LED displays have appeared in rural communities and become a beautiful landscape in the community. Integrating microelectronics, computer and information processing technology, LED display can help to improve the status quo of rural information lag and informationization to a certain extent, and alleviate the ambiguity of information. Some community cadres are deeply touched by this. LED electronic displays not only broaden the way for residents to access information, but also improve the efficiency of community services. However, due to various reasons, the utilization rate of LED displays in many communities is not high, and some have even become furnishings. A screen is tens of thousands of dollars, and it is not used after buying it. It will be open for a day or two in a week, and it will be like this. Some residents have reflected. It is understood that the use of LED display screens, various types of information release, price market release, popularization of laws and regulations, temporary notices, instant news broadcasts, consumer guides, and even can be a government department to start weather, water, disasters and other early warning terminals. Since the use is so extensive, why can't you really play the role of the display? In summary, the reasons are nothing more than the following. First, the acceptance of new things by community cadres requires a process. The work habits that have been developed for a long time are difficult to change. Second, due to the lack of management personnel, there is a lack of formal use and management norms for LED displays. Third, late maintenance has not kept up. Some LED displays have failed and have not been repaired in time. As a means of enriching rural informatization, in the actual production and life, all information technology, including LED display screens, should be taken seriously. The vast number of grassroots cadres should actively change their concepts and fully recognize the enormous role of information technology in rural economic development, community management, and the transformation of peasants' ideological concepts. Second, government departments should increase investment and strive to eliminate the digital divide between urban and rural areas. Not only in equipment and other hardware, but also in the development of software such as talents, so that more practical talents can emerge in the grassroots community and avoid various kinds of The high-rise equipment has become a flower shelf, so that it can play its due role, so that the technology service can really enter the village. In addition, we must also help and participate together. The rural informatization construction is a huge systematic project. It is necessary to fully mobilize the enthusiasm of all aspects of society. The interaction of departments and the interaction between government and enterprises can truly make good use of existing resources and achieve practical results.

Air Purifier with carbon filter

Take a deep breath, close your eyes, the world has the freshest oxygen ... Yu Quan's "Deep Breath" is well known to us, but as the environmental problems become more and more serious, the haze sky also increases, PM2.5 PM10 and so on Vocabulary has also been mentioned more and more, and air purifiers have quickly become popular on the market with this "air quality" trend. Along with this, the air-clean brand has sprung up, and various technologies are dazzling. Which ones are indeed effective and which are just tasteless propaganda? How does the Air Purifier bother us to get rid of pollution? And look at the editors for you.

Analysis of air purifier

The critical value of PM2.5 content is 75 μg / m3

The pollutants in the air mainly include soot, total suspended particulates, inhalable particulates (PM2.5) and fine particulates (PM10). The smaller the diameter of the particulates, the deeper the part that can enter the respiratory tract. 10 micron diameter particles It is deposited in the upper respiratory tract, and particles below 2 microns can penetrate 100% into the bronchiole and alveoli.

1k-5k air purifier prices vary greatly

The air purifier products on the market not only have various functions, but also have prices ranging from thousand yuan to tens of thousands. The pricing of imported products is generally higher than that of domestic brands. Except for the core technology of many brands, the promotion of purification effects is similar, and consumers need to choose according to demand.

The air quality standard of 74 key cities is only 4.1%

According to the data of the press conference held by the State Council Information Office on June 4, according to the new "Ambient Air Quality Standards", the six pollutants SO2, NO2, PM10, PM2.5, CO and O3 were evaluated, 74 new standards In the first phase of monitoring and implementation, the proportion of cities that met the ambient air quality standards was only 4.1%, and the other 256 cities implemented the old air quality standards, and the proportion of cities that met the standards was 69.5%.

Air purifier sales increased by 90.5% compared with last year

According to a report recently released by the China Electronics and Information Industry Development Institute, due to the haze weather, air purifiers have become the most concerned home appliance products, with sales of nearly 2.4 million units nationwide last year, a year-on-year increase of 90.5%; retail The amount reached 5.6 billion yuan, a year-on-year increase of 105.9%.

HEPA filter needs to be replaced in March

The filter of the air purifier Air Cleaner is the same as the filter of the water purifier, and it is not effective for a long time. After long-term use, the accumulation of dust on the surface of the filter will also cause the filter to gradually fail. Therefore, when the haze is more serious, the non-washable HEPA filter needs to be replaced every three months.

Merchants claim that the purification rate is more than 99% for the concept of stealing

99% or even 99.99% seems to have become a slogan for many air purifiers on the market. Many brands of products promote their high removal rate of PM2.5 and formaldehyde. In fact, this kind of publicity is more of a kind. The slogan of stealing the concept, the removal rate of 99% is the effect of the material itself on PM2.5 and formaldehyde, not the effect of actually running in space.

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