Author: iot-en (page 134)

In view of the necessity of converting serial port data into network data during Internet of Things communication, a design method of data transmission unit is proposed. The serial data interface is the commonly used RS-232 and RS-485 interface, and…

1. Application block diagram The DTU application framework diagram is shown in Figure 1. DTU communicates with node C through wired low-speed mode. Finally, DTU summarizes the data and sends it to the business platform server. The data uploaded by…

In the process of gradual development and advancement in the information age, wireless communication technology has become an inevitable choice and development trend in various industries and fields of national economic construction and development. Especially for wireless data transmission operations,…

1. Hardware design analysis of wireless data transmission terminal based on GPRS From the perspective of wireless data transmission terminal hardware design, with support, the microcontroller serial port can complete the connection with the communication module. In this process, it…

Wireless sensor network (WSN) is a collection of small sensor nodes with sensing, computing and transmission capabilities. Since the functions of a single sensor node are limited, especially energy storage and data storage, a good network topology and routing protocol…

How does LoRa achieve positioning? LoRa uses Time Difference of Arrival (TDOA) to achieve geographical positioning. A technology based on LORA positioning, including an information transmission system, a network transmission system and an information processing system, characterized in that the…

Introduction: LoRa devices and wireless radio frequency technology are a long-distance, low-power IoT solution that has been widely adopted in recent years. This technology supports telecommunications companies, IoT application developers and system integrators to deploy low-cost and interoperable devices around…

The outstanding features of LoRa technology in terms of high performance, long distance, low power consumption, and support for large-scale networking, ranging and positioning make this solution (terminal LoRa base station) an ideal technology for the large-scale promotion and application…

LoRa technology was originally a spread spectrum wireless modulation patented technology developed by a French company, Cycleo. After it was acquired by the American Semtech company in 2012, Semtech conducted strong marketing of the technology. In order to introduce other…

Internet of Things Development PlanInternet Technology Zhao Dequan Jilin Jida Communications Design Institute Co., Ltd. Since the reform and opening up, our country’s economy has developed rapidly, which is enough to prove that the great development strategy of reform and…