1.1 In the future Internet of Things era, IoT gateways will play a very important role, and it will become the link between connection-aware networks and traditional communication networks. So how do you choose the right IoT gateway solution? This article will take you quickly to the intelligent gateway solution of Zhiyuan Electronics.
As we all know, in the Internet, a gateway is an intermediate device that connects an internal network to other networks on the Internet, also called a "router." In the architecture of the Internet of Things, we know two different networks in the sensing layer and the network layer. An intermediate device is needed between them, which is the “Internet of Things Gatewayâ€.
Figure 1 Internet network model
Figure 2 IoT network architecture
The IoT Gateway is a cognitive device that combines sensing devices such as radio frequency identification (RFID), infrared sensors, global positioning systems, and laser scanners to connect key devices to the access network. The gateway can meet the access requirements of local area short-distance communication, realize the connection with the public network, and also complete the functions of forwarding, control, signaling exchange, codec and so on. In summary, if the enterprise wants to deploy the Internet of Things, then the excellent IoT gateway solution is very important. This article uses the IOT gateway controller launched by Guangzhou Zhiyuan Electronics Co., Ltd. to quickly understand the IoT solution.
The following is an example of a smart parking solution that demonstrates the capabilities of a smart IoT gateway:
One: network interconnection capabilityCurrently, there are many technical standards for short-range communication, and only common WSNs technologies include Bluetooth, ZigBee, Wi-Fi, and LoRa. As can be seen from the location of the gateway, the gateway needs to have access to a variety of existing communication networks, including: 2G/3G/4G mobile communication networks, wireless local area networks, and wired networks. Therefore, the gateway must have the interface of the corresponding network and the access capability of the software and hardware. Zhiyuan electronic intelligent gateway adopts Mini PCI-E interface, and is equipped with a variety of wireless communication options modules, such as Wi-Fi, 3G/GPRS, ZigBee, 900M UHF and other wireless modules, which can be flexibly selected and matched according to the actual application. , remote communication module. It is convenient for customers to quickly build smart IoT gateway products suitable for their own industry.
Figure 3 Network interconnection
Two: data processing capabilitiesFigure 4 shows the complete solution for Zhiyuan Electronics to solve the intelligent parking. The vehicle enters the parking lot in the form of license plate or vehicle identification, and is equipped with LoRa wireless module to lock or guide the parking space. In order to achieve the purpose of convenient, fast and safe parking users, the informationization, effective and stable management will be realized.
The hardware uses the Freescale I.MX6 series of dual-core / quad-core Cortex-A9 processors for high-performance processing. The gateway is configured with 512MB of DDR3 memory and 4GB of NAND Flash running Linux. It integrates high-performance interfaces such as CAN, Gigabit, PCIe and SATA-2. It also integrates multimedia interfaces such as LVDS, HDMI and MIPI cameras, and supports 1080P high-definition video decoding, which can efficiently complete hardware access and data processing.
Figure 4 data processing
Three: node management capabilitiesThe gateway implements the management of nodes in the subnet, such as obtaining the identity, status, and attributes of the nodes, as well as remotely implementing wakeup, control, diagnosis, upgrade, and maintenance. Pre-installed mature and practical Linux operating system provides a stable and fast platform for users' secondary application development.
In addition to intelligent parking, high-intelligence IoT gateways will also be widely used in smart cities, smart grids, smart healthcare, intelligent transportation and other industries. IoT gateways will play a very important role in the future Internet of Things era. For the application needs of different scenarios, we also have an intelligent gateway solution with ARM9 solution and A8 solution to provide you with a variety of options.
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