Summary: This paper introduces a multi-channel switching regulator power supply and the working principle of TOP247Y, with emphasis on the design of switching power supply and high frequency transformer. Keywords: Switching power supply; Overview of electromagnetic interference In three-phase inverter switching power supply, there are two ways of power supply, one is to use power frequency transformer power supply, the other is to use switching regulator power supply. With microelectrons and

Summary: This paper introduces the overall design idea of the wireless sensor network test platform, introduces node machines, gateway machines and databases, and finally briefly describes the database system used. Keywords: Wireless sensor network; Test platform; Node Machine; Gateway machine; Database Introduction Wireless Sensor Networks enable real-time monitoring, awareness, and collection of various environments or monitoring within network distribution areas

In EPA network, the introduction of ZigBee technology is a new research topic. Based on the analysis of ZigBee technology, this paper systematically models and designs the access of ZigBee technology to EPA control network, gives the implementation scheme and protocol model of the access of ZigBee to EPA control network, and designs an EPAZigBe according to the proposed scheme.

1 Introduction There are 4 secondary light guide level tables in a unit. According to the process requirements, the secondary table display needs to be transformed into DCS monitoring. The secondary light guide level table can only output the serial signal of RS-485. The monitoring operation station requires simultaneous monitoring. Therefore, the technical essence of this system is to convert the multi-channel serial communication to the multi-channel Ethernet communication. 2Design 2.1 Simple Scheme Serial

Summary: Discusses the specific technology and related implementation scheme of building embedded WebServer based on TCP/IP protocol stack using 8-bit single-chip computer; The system hardware schematic diagram and the code frame structure of the software implementation are given. Keyword: WebServerTCP/IP protocol stack socket introduction Use 8-bit microcontroller to pass through ISP (Interne)