Key technologies and application directions of industrial gateways

Key technologies and application directions of industrial gateways

　　Industrial gateways are also called IoT gateways. As the link between the perception layer and the network layer, the IoT gateway can realize the protocol conversion between perception networks and communication networks, as well as different types of perception networks, which can realize wide-area interconnection or realization Local area interconnection. Today we will take a look at the key technologies and applications of the gateway.

　　Key Technologies of IoT Gateway

1. Multi-standard intercommunication access capability: There are many technical standards for short-range communication. Common sensor network technologies include ZigBee, Z-Wave, RUBEE, WirelessHART, IETF6IowPAN, AM’ /ANrr+, Wibree, ]nSTeON, etc. Various technologies are mainly developed for a certain type of application, and there is a lack of compatibility and system planning among them. For example, Z.Wave is mainly used in wireless smart home networks, and RUBEE is suitable for harsh environments.

   
   

　　WirelessHART is mainly concentrated in the field of industrial monitoring. Realizing the interconnection and intercommunication of various communication technology standards has become a problem that must be solved by IoT gateways. A separate gateway is designed for each standard, and then implemented through a unified interface between the gateways. Or use the standard adaptation layer and different technical standards to develop corresponding interface implementations.

　　 2. The manageability of the gateway: As a network element connected to the network, the IoT gateway itself must have certain management functions, including registration and login management, authority management, task management, data management, fault management, status monitoring, and remote diagnosis , Parameter query and configuration, event processing, remote control, remote upgrade, etc. If it is necessary to realize the manageability of the entire network, not only the management of the gateway device itself, but also the management of each node in the subnet through the gateway, such as obtaining the identification, status, attribute and other information of the node, as well as remote wake-up, control, Diagnosis, upgrade and maintenance, etc. Although the technical standards are different according to the subnet. The complexity of the agreement is different, and the management content that can be carried out is quite different.

　　 Industrial gateway application direction

　　Smart Home: These applications allow users to remotely monitor security equipment and home appliances, and can also improve energy efficiency. For example, when users go out, they can automatically turn off the power of home appliances.

　　Smart street lights: By monitoring parameters such as ambient light and traffic flow, municipal administrators can control the brightness of street lights and the switching time, saving a lot of energy. If the street lamp fails, the system will immediately report for repairs, reducing the risk of accidents or crime.

　　 Smart meter: The wirelessly connected meter can realize remote meter reading and some applications, such as stepped electricity price and two-way metering electric energy meter. Smart meters can also detect and report incidents such as power theft and circuit leakage.

　　Smart parking lot: The smart parking lot based on proximity detection sensor is another IoT application that can send the driver information about vacant parking spaces in advance to avoid traffic congestion and make the pricing based on parking time more accurate.

　　Smart agriculture: Through precise monitoring of humidity and nutrition, the system can prompt watering and fertilization time, thereby saving water and fertilizer costs, while greatly increasing yield. Practice has proved that when used in conjunction with weather forecasts, the system can give farmers real benefits.