In 2018, will Tencent open an offline store called Tencent's new retail? Will you launch your own blockchain? What is Tencent busy in western China? What is the progress of Jingdong New Retail? Liu Qiangdong: At the end of this year, we will open 1,000 new Jingdong convenience stores every day. At the Internet + conference, Liu Qiangdong also borrowed a place to sip. According to Liu Qiangdong, the “Jingdong Convenience Store†program is being implemented. As of last month, there are 1,000 Jingdong convenience stores opened in China every week. The goal is to open 1,000 Jingdong convenience stores every day at the end of this year. "We can receive 50,000 applications every day, basically workers who work outside, return to their own villages, towns, and return to their own small county. Our goal is to have a convenience of Jingdong every 300 meters. Shop. The income per month can exceed 8,000 yuan." Tencent really does not issue coins? “The blockchain is indeed a very innovative technology, but if I do the digital currency ICO, I think there are still many risks. We don’t consider sending money.†Ma Huateng has made it clear that Tencent will not participate in ICO. Tencent officially introduced the progress of the blockchain that Tencent is promoting in this year's new Internet + blockchain sub-forum: no currency, and promoting the application of blockchain industry is the next key plan. “The blockchain is not necessarily decentralized. It is actually a multi-center form. It emphasizes that the decentralization of blockchain is too absolute. Bitcoin also has a center, so it is not too idealized.†Cai Wei, general manager of blockchain business in Tencent Ge introduced that the current R&B team in the Tencent blockchain is also developing the “linkage chain†technology. This limited group, the designated accountant's link method is more suitable for B-side and B-end, collaboration between institutions and institutions. In the scope of the blockchain business in Tencent, it should not touch the "ICO, speculative coins that need to rely on speculative forms such as the development of currency-like incentives." It is understood that since the establishment of the blockchain technology team in Tencent in 2015, it has continued to advance in the banking, medical, logistics, Internet finance, small and micro enterprises and supply chain finance. In Cai’s words, Tencent’s blockchain technology research and development has its own proprietary rights in algorithms, no framework constraints, and customization capabilities. “We will open up three parts: AMS Asset Registration Audit Gateway, registering accounts receivable and payable between core companies and suppliers; debt chain based on blockchain, and developing ABS cloud platform. Blockchain As a guarantee, Tencent is a neutral service provider, which enables all business processes to be online and zero-cost access, and can achieve second-level lending." Blockchain technology has also begun to play a role in medical treatment. In a hospital in Liuzhou, Guangzhou, the country's first blockchain prescription was realized. From the prescription in the hospital, the purchase of medicine outside the hospital, to the delivery of medicine, all the links involved borrow blockchain technology to ensure that the prescription is not tampered with. On April 23, Tencent will also launch the first blockchain game codenamed "Z". "Tencent hopes to make games a key business of blockchain technology. But it is still in the exploration stage." It is understood that Tencent has not established a clear profit KPI for the blockchain R&D team, and benchmarking products in an influential scenario is Tencent's most “urgent†goal in the blockchain field. Tencent wants to open a new retail store? From the end of last year to the beginning of this year, Tencent has launched a high-frequency buy-and-buy model in the new retail sector. Does Tencent want to enter new retail? In the near future, can we see a chain of supermarkets named “Tencent Convenience†or “Tencent Hypermarket†appearing around us? "We don't want to do retail ourselves, we hope to become a "digital assistant" in the retail industry." At the conference, Ma Huateng once again stressed that Tencent "has no intention to open a store", but is bent on "incubating" Tencent's current technology in smart retail. Landing and application within the field. "We deployed sensor devices such as face cameras to grasp the number of passengers, store hotspots, and customer shopping routes. Merchants can optimize shop location, shelf display, and LBS advertising through consumer behavior analysis. The public number pushes content, small programs to distribute goods and offers..." For the first time, Ma Huateng introduced the Tencent “Family Portrait†toolkit to the public. Public Number - Every business and organization can directly connect with their own end consumers and have their own fans and traffic. Applet - Many applications of smart retailing today are closely related to small programs. Mobile Payments - This technology doesn't look very advanced, but it's actually the most practical. Social Advertising - At the moment we are starting to connect the friends, the public number and the small program ads to each other. In smart retailing, we are beginning to try to use social advertising to bring interaction and see how it generates value. Enterprise WeChat - Currently in the internal testing of enterprise WeChat and open WeChat interconnection. Big data, cloud computing, artificial intelligence - in the future, all walks of life are actually using artificial intelligence to process big data in the cloud. Security Capability - Security is always the lifeline of Tencent. What happened to the Internet + West? This year, Tencent released the Internet + data report for the fourth time. Compared with the first data report, the first-tier cities in Guangzhou and Shenzhen have an absolute advantage. This year, the central and western cities have formed a new growth level. Driven by emerging power, China's digital economy has grown faster than the US. “We expect to lead the western region to achieve overtaking through digital upgrades.†Ma Huateng’s report mentioned the impact of Internet+ in heavy industrial cities. As China's manufacturing industry, Chongqing's Internet + Index ranked seventh in the country in 2017, a year-on-year improvement. Before the first time in the top ten digital economy segments such as digital finance, digital transportation, and digital social networking, ten. According to official data, the current "Digital Chongqing" scale has reached 50 million yuan, and integrated circuits, intelligent hardware, big data development and application, as well as the intelligent transformation of traditional industries have all achieved remarkable results. By 2020, the total digital economy in Chongqing is expected to reach 75 million yuan. At present, Chongqing has successfully completed the intelligent transformation of more than 80 traditional factories. According to digital statistics, after the intelligentization, the production efficiency of these smart factories increased by 37.2% on average, and the defective product rate dropped by 27.4%. The product development cycle of enterprises Shorted by 12.5%, the level of energy consumption fell by an average of 8.4%. The appearance of these samples shows that the transformation of the smart factory is not as expensive as it was supposed to be, and it has also played a role in reducing the production cost of the factory. With the rapid development of wireless sensing technology, 433 MHz wireless communication devices have been more widely used in portable devices, vehicle-mounted terminals, intelligent locks and other fields [1]. As an important part of wireless communication equipment, antenna is a key component that affects the overall performance of the communication system [2]. 433MHZ Rubber Antenna,433Mhz Patch antenna,433MHZ antenna with magnetic base,433MHZ Yagi Antenna Yetnorson Antenna Co., Ltd. , https://www.yetnorson.com
Domestic and foreign scholars have been exploring the 433 MHz printed antenna with high gain and miniaturization for many years. However, there are two main trends in the design of 433 MHz printed antenna by previous scholars: one is to sacrifice size to ensure high gain, such as the structural scheme in literature [3]; The other is to sacrifice gain to ensure size miniaturization, such as the scheme in reference [4].
Taking into account the effective size and gain characteristics of the antenna is the difficulty in the design of 433 MHz miniaturized printed antenna. Based on the research experience of domestic and foreign scholars on 433 MHz printed antenna, a 433 MHz miniaturized spiral printed antenna is designed based on the 1/4 wavelength monopole antenna. The simulation results show that the antenna occupies only 20×35 mm2 and the effective gain is -4.14 dB.