Wireless application solution of sea sky WiFi Nos-WiFi (1)

Wireless WLAN technology is becoming more and more mature. It is not only used for Internet access, but also for enterprise LAN and home entertainment. It also integrates with our agriculture, industry, transportation, and many other aspects, play an immeasurable role. The combination of these embedded and wireless technologies makes my life more intelligent. Then, we will introduce the wireless application solution Nos-WiFi for WiFi.

Currently, in wireless monitoring, industrial control, video transmission, and other industries, embedded wireless systems mainly adopt a non-operating system environment represented by NORDIC solutions, this solution consists of the "CPU + wireless data transmission module" to implement short-distance and low-bandwidth wireless communication. However, due to the limited technology of narrowband wireless communication, only the maximum transmission rate of 2 Mbps can be achieved. In actual video transmission, the maximum transmission rate can only meet the needs of applications with less than 15 frames/second under 320*240 within 10 meters. With the market's demand for larger screens, faster transmission rates, and smoother video effects, this solution is far from meeting people's needs. System Upgrade requires a broadband wireless transmission device such as WLAN. The traditional upgrade method is to add Flash and SDRam in the original system architecture and run an embedded operating system to drive the WLAN module, it not only greatly increases the system cost, but also increases the difficulty and period of product development, which is not conducive to the launch of new products.

The wireless application solution Nos-WiFi product (1) released by Beijing dianhua Electronic Design Co., Ltd. has changed this situation. Huawei electronics has been devoted to the research and development of Wi-Fi core chips and module products for many years. So far, it has successfully produced three tianlian Airquick series to Support WAPI in China at the same time)/11i International) based on the security standard chip, nearly 10 WLAN modules are launched, the product applications cover various fields such as laptops, USB external wireless NICs, home audio and video, security monitoring, carrier hotspot products, home gateways, industrial applications, and smart transportation.

Figure 1: Figure 1 of the Nos-WiFi module of the wireless application solution.

Wireless Application solutions Nos-WiFi series modules are developed to meet the wireless function upgrade needs of existing products in industrial applications, security monitoring and other fields. Their biggest features are: it provides a driver software that is not based on any operating system. It can be integrated into any system platform for operation and achieves high-speed data transmission, this makes it possible to use Wi-Fi for video transmission without an operating system. The driver software structure 2 is shown below:

Figure 2: driver software structure.

Location 3 of the product integrated into the host system is shown below:

Figure 3: Position of the driver in the host system.