Autore: iot-it (pagina 128)

ZHL4921W 4g wireless industrial router is developed by Chengdu Zongheng Intelligent Control Technology Co., Ltd. based on FDD-LTE4G network requirements, using the latest ARM hardware system platform, and using the latest technology using the Linux software system. It is a…

The 4G communication module integrates all components such as the frequency signal amplifier and completes the integration. With the development of industry, the demand for embedded devices to access the network is increasing day by day. In the absence of…

For a long time, serial communication methods have been widely used in many fields such as data collection, data monitoring, security, and medical care. However, with the development of the Internet and the improvement of application requirements, its limitations have…

The design of this router is based on three modules, namely 3G module, WiFi module and Linux hardware platform, as shown in Figure 1. The function of the 3G module is to use the operator’s wireless data card for PPP…

Broadly speaking, M2M can represent the connection and communication between Machine to Machine (MachineMachine), Man to Machine (Man to Machine). Machine to Man (Machine 1o Man). Mobile↓Machine! It provides the technical means for mutual communication between people , machines and…

The wireless communication module industry structure is increasingly differentiated and the strong will always be strong. At present, the wireless communication module market is in the early stages of development, with many brands and low market concentration. In the long…

According to data from the Ministry of Industry and Information Technology, the scale of my country’s Internet of Things industry is planned to reach 1.5 trillion yuan in 2020, and the value of related chips, modules, and terminals will account…

Due to the need to use the public network to achieve wireless meter reading, a DTU module based on 4G network was designed and developed to implement the application of the DTU module in the meter reading system. This article…

The GPRS remote wireless measurement and control method solves many problems such as high line laying costs and inconvenient large-area agricultural possibility management, and technically provides the realization of precision agriculture. There are currently relatively few mature applications for water-…

Based on the research on Lora communication, the Lora communication data terminal and its data processing method based on circular queue buffering are designed. The data terminal uses the circular queue to buffer the received data, and checks, judges and…