Green Lighting Shanghai will open in April in Shanghai More than 80% of the high-efficiency energy-saving landscape decoration and lighting at the 2010 Shanghai World Expo will become the world's largest concentrated production area of ​​LEDs. At the end of the two national conferences, delegates will continue to promote the government with high subsidies. The billion-dollar energy-saving lamp replaces the incandescent lamp with large power consumption; the pilot project of “Ten Cities and Ten Thousand Miles†carried out in 21 cities announced to the world that LED lighting has moved from traditional landscape lighting to road lighting, and has been smoothly scaled up. ... There are indications that under the situation of global energy shortage and increasing environmental protection requirements, the new light source and new energy lighting industry has shown broad development prospects. The 2010 Shanghai International New Light Source & New Energy Lighting Exhibition & Forum (Green Lighting Shanghai) will be held on April 20-22, 2010 at Reed Exhibitions and National Semiconductor Lighting Engineering R&D and Industry Alliance. Co-hosted by (CSA), it has received wide attention. PHILIPS, OSRAM, ASTRI, CREE, GE, Delta, Hisense, Skyworth, BYD, Yuanfang, Shifu, Mingxin, Zhongwei, Qinshang, Sansi and other well-known enterprises in the industry will fully demonstrate the latest concepts in the field of semiconductor lighting. . Ms. Li Yayi, Vice President of Reed Exhibitions East China, told the reporter: The three-day exhibition will fully present the industrial chain from upstream epitaxial material production and chip preparation, midstream device and module packaging, and downstream lighting and display integration applications. The new light source and new energy lighting manufacturing industry create a unique business platform. It is reported that a number of LED will appear one by one in the new exhibition site: Philips Release series LED solutions designed for the hotel, such as MasterLED (used in place of halogen lamps, incandescent lamps and energy-saving lamps). Philips Lighting company official said, the hotel lighting, may be because of the development of LED technology and usher in a revolutionary change. BYD solar LED lights, use of special BYD iron battery charge and discharge control developed photosensitive system and a lighting control system of the DC power supply, having reliable, long life, easy installation, energy saving, economical and durable and many other advantages. Year-end forum theme of the Forum will be "the development of thinking and new energy sources and new tactics lighting," Forum "innovation and development of new energy sources and new lighting," as well as the composition of the four summit, close to a hundred industry experts, scholars, business executives will start wonderful game, then a total new source of new energy lighting industry in the future. Wu Ling, Secretary-General of National Semiconductor Lighting Engineering R&D and Industry Alliance, will elaborate on the development strategy of semiconductor lighting emerging industry; Professor Hao Luxi from Tongji University's School of Architecture and Urban Planning will interpret the “2010 Shanghai World Expo Lighting Engineering Innovation and Application Designâ€; Shanghai World Expo Ni Yang, the designer of the China Pavilion, will tell the public “Lighting strategy and energy-saving measures for the China Pavilion at the 2010 Shanghai World Expoâ€; Tang Guoqing, director of the Semiconductor Lighting Professional Committee of China Lighting Association and Cui Rui China Market, will explain LED and lighting changes. ... From the senior executives of OSRAM, GE, Siemens, Philips Lighting, etc. will also stage a speech, to discuss the development of new light source and new energy lighting industry, all the heroes of your way to sing me to debut, I believe it will trigger a field of semiconductor lighting New thinking. Up to now, IBM Public Sector Asia Pacific, Lumileds Asia Pacific, Jiegao Optoelectronics, Skyworth Group, Qinshang Optoelectronics, Guangdong Zhonglong Transportation and other well-known enterprises have confirmed that they will come to visit the exhibition. It is expected that the site will attract more than 3,000 companies and institutions. participate. I believe that this new line of new light source and new energy lighting industry will surely lead the industry to a new revolution. For more information on the latest developments and activities can be found at: What is a wireless AC controller? What does it do? Ac Controller,Gigabit Wlan Controller,Enterprise Ac Gateway,Wireless Ap Controller Shenzhen MovingComm Technology Co., Ltd. , https://www.szmovingcomm.com
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Wireless AC controller is a kind of network device, such as the AC100/150 of Fengrunda, which can be used to centrally control and manage wireless aps. It is the core of a wireless network and is responsible for managing all wireless aps in the wireless network. AP management includes: delivering configuration, modifying related configuration parameters, RF intelligent management, and access security control.
Why use a wireless controller, and what exactly does it do?
In fact, the role of the wireless controller is to play a gateway function between the WLAN and the Internet (on the router), and the data from different access points are aggregated and accessed to the Internet. The role of an access point (AP) is to complete wireless access, and it can control user access through network flags.
The role of wireless controllers
1, Flexible networking mode and excellent scalability
The AP does not need to be directly connected to the AC, so that the AP can be deployed in any place that needs to be covered through the network, such as you deploy an AP in each employee's home, and then connect to the wireless controller inside the enterprise through the VPN, you can expand the wireless network of the enterprise to the family of each enterprise member.
2, intelligent RF management functions, automatic deployment and fault recovery
Through the dedicated RF management module, we can initially estimate the AP deployment according to the user's architectural design drawing, and can calculate the average bandwidth of the wireless terminal, the coverage between AP and AP in the actual debugging process.
3. Centralized network management
All the configuration of the wireless network can be completed by configuring the wireless controller. For example, enable, manage, and maintain all AP devices and mobile terminals, including all functions such as radio wave spectrum, wireless security, access authentication, mobile roaming, and access users.
4, powerful roaming function support
The wireless controller uses AP as the boundary combined with fast RF management system, which greatly reduces the connection time between wireless client and AP, and thus realizes the function of fast roaming.
5. Load balancing
AP and wireless controller systems can distribute wireless users or terminals to nearby aps within the coverage area of an AP, ensuring the number of each wireless terminal or the sum of AP bandwidth transmission or the upper limit of each wireless terminal bandwidth.
6, wireless terminal positioning, rapid fault location and intrusion detection
Wireless controllers can track and locate the location of wireless terminals, such as wirelessly connected computers, PDAs and Wi-Fi mobile phones.
7, powerful access and security policy control
At present, the wireless system supports authentication of 802.1, WEB authentication, MAC, SSID, VPN, etc., and supports various encryption modes such as WEP, WPA, WPA-PSK, WPA2, etc., and all configurations can be configured globally through the wireless controller.
8, Qos support
AP and wireless switching systems can limit the maximum bandwidth of a user's wireless connection within each user's privileges. For different IP services, the system can also define different QoS queues through the wireless switch module. For example, for wireless voice applications, SIP and RTP protocols can be set in the high queue, while common applications such as http and ftp can be set in the low queue.
The wireless controller AC is more advanced than the AP, plays the role of manager in the wireless network, and the wireless controller AC also acts as a client to complete a series of functions in the wired network (such as authentication, authentication, etc.). However, wireless controller AC is not a WLAN device specified in the 802.11 protocol family, but as a supplement to the protocol in specific applications, and its price far exceeds that of ordinary access point (AP) devices.
In small-scale wireless networks that use only a few aps, it is not economical to use expensive wireless controller AC equipment. However, if the number of wireless aps is large, more than 20 can be used AC controller.