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Serial port and Ethernet: the bridge connecting the world
In the field of electronics, serial port modules and Ethernet modules have always been two key elements for wireless communications and network connections. Each plays an important role in different scenarios, but even more powerful are the possibilities they create when working together. This article will delve into the tacit cooperation between serial port modules and Ethernet modules, and how they can become a bridge connecting the world.
The versatile talents of serial port modules
Serial port module, usually referred to as serial communication port, is an important way for data transmission between electronic devices. Its simple and stable characteristics make it widely used in many scenarios. From microcontrollers to sensors to various peripherals, the flexibility of serial port modules makes them an indispensable part of electronic systems.
However, the serial port module does not exist in isolation. When realizing remote communication, data upload and download, it often needs to cooperate with more powerful network connection technology.
Network Radiation from Ethernet Modules
Ethernet modules, as a typical representative of wide area networks, provide high-speed and stable network connections for devices. It can realize instant communication between devices, and can also transmit data to a remote server to achieve remote monitoring, control and other functions.
However, for some specific applications, the high power consumption of Ethernet modules and complex network setup can also become challenges. At this time, the serial port module can take advantage of its low power consumption and simplicity, becoming an ideal supplement.
Tacit cooperation: perfect cooperation between serial port module and Ethernet module
The combination of serial port module and Ethernet module realizes the perfect integration of wireless and wired. The device communicates locally with MCUs, sensors, etc. through the serial port module, and at the same time achieves high-speed connection with the cloud server through the Ethernet module.
In the era of the Internet of Things, this combination provides devices with wider network coverage and enables interconnection between devices. From smart homes to industrial automation, this combination drives innovation across industries.
Conclusion
Serial port modules and Ethernet modules each shine on the stage with their unique characteristics, and with the synergy of the two, the connection of electronic devices becomes more flexible and powerful. In the future, as IoT technology continues to evolve, the role of serial ports and Ethernet modules will become more important, building a smarter and more connected world.
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Industrial Routers vs. Industrial Gateways: Features, Uses, and Performance Comparison
In industrial automation and Internet of Things (IoT) applications, industrial routers and industrial gateways are two key components that play an important role in ensuring data communication, device connectivity, and network security. This article will compare industrial routers and industrial gateways, including their features, uses, and performance to help you understand the differences between them.
Industrial router:
Industrial routers are network devices designed specifically for industrial environments and have the following characteristics:
1. Network routing function: Industrial routers are mainly used to implement routing and forwarding of data packets in industrial networks. They can manage communications between multiple networks, ensuring reliable transmission of data from source to destination.
2. Network isolation: Industrial routers usually support functions such as virtual LAN (VLAN), which can be used to separate network traffic between different departments or devices and improve network security.
3. Data conversion: Some industrial routers also have the function of data format conversion, allowing different types of devices to communicate with each other, even if they use different communication protocols.
4. Firewall function: Industrial routers usually integrate firewall functions to help protect industrial networks from potential network attacks and threats.
5. Anti-interference: Industrial routers are usually designed to operate in harsh environmental conditions and have anti-electromagnetic interference and anti-vibration characteristics.
Industrial gateway:
Industrial gateway is a device used to connect different communication protocols and devices. Its characteristics are as follows:
1. Protocol conversion: The main function of the industrial gateway is protocol conversion. They can convert data from different communication protocols into a unified format so that different devices can communicate with each other.
2. Device connection: Industrial gateways can connect various types of devices, including sensors, PLC (programmable logic controller), SCADA systems, etc., thereby integrating them into a unified industrial network.
3. Data integration: Industrial gateways can also process large amounts of data, filter, summarize and store them, providing key data for monitoring and analysis.
4. Cloud connection: Some industrial gateways support connection to cloud platforms, allowing industrial data to be analyzed and monitored in the cloud.
5. Device Management: Industrial gateways often provide device management and diagnostic capabilities that help monitor and maintain connected devices.
Compare:
Function: Industrial routers are mainly used for network routing and data forwarding, while industrial gateways focus on protocol conversion and device connection.
Purpose: Industrial routers are suitable for building and managing industrial networks, while industrial gateways are used for connecting and integrating various industrial devices.
Performance: Industrial routers usually have more powerful routing performance, while industrial gateways focus more on protocol conversion and data processing performance.
To sum up, industrial routers and industrial gateways both play important roles in industrial environments, Single serial port server but their functions and uses are different. Which device to choose depends on your specific needs, whether you need powerful network management capabilities (choose an industrial router) or protocol conversion and device connection capabilities (choose an industrial gateway). In industrial automation and IoT applications, the two often need to work together to achieve a complete network solution.
CAN-BUS Module vs. LIN: Comparison of Automotive Communication Protocols
In modern cars, communication protocols are key to enabling various electronic control units (ECUs) to work with each other. Two common automotive communication protocols are CAN-BUS (Controller Area Network Bus) and LIN (Local Interconnect Network). This article will compare the two protocols, explore their similarities and differences, and the scenarios in which each is applicable.
CAN-BUS Module overview:
CAN-BUS is a highly reliable communication protocol widely used in modern automobiles. It provides high bandwidth and real-time performance for applications requiring fast, reliable data transmission. CAN-BUS is used to connect multiple ECUs such as engine control modules, braking systems, air conditioning controls, etc.
LIN Overview:
LIN (Local Interconnect Network) is a simpler and lower-cost automotive communication protocol It is mainly used to connect auxiliary equipment such as rearview mirrors, sunroofs, seat controls, etc. Compared with CAN-BUS, LIN has a lower bandwidth and is not suitable for applications requiring high-speed data transmission.
Compare:
Bandwidth and speed:
CAN-BUS module: Provides high bandwidth, data transmission speed is usually fast, suitable for tasks requiring real-time performance.
LIN: Lower bandwidth, relatively slow, mainly used for tasks that do not require high-speed data transfer.
cost:
CAN-BUS module: Implementing CAN-BUS communication generally requires more hardware and cost, but it is suitable for more application areas.
LIN: LIN is an affordable option for applications that require less data transfer, reducing overall costs.
Complexity:
CAN-BUS module: More complex as it supports more functions and higher speeds. This is necessary for advanced car functionality.
LIN: Simpler, easier to implement, suitable for simple control tasks.
Applicable fields:
CAN-BUS module: Suitable for applications requiring high-speed and complex communication, such as engine control, braking systems, safety systems, etc.
LIN: Suitable for simple control tasks such as sunroof, seat control, rearview mirror adjustment, etc.
Power consumption:
CAN-BUS module: High-speed CAN-BUS communication may require more power consumption, but it is suitable for applications requiring high bandwidth.
LIN: LIN communication generally requires lower power consumption and is suitable for battery-operated devices.
Choose the right protocol:
Choosing CAN-BUS modules or LIN depends on your application requirements. If you need high-speed, complex communications to support advanced automotive features, CAN-BUS may be a better choice. But if your application is simple and cost and power consumption are the main concerns, then LIN may be more suitable. In some cases, both protocols are used simultaneously in automotive systems to meet different communication needs. To sum up, choosing the right protocol depends on your specific application scenarios and priorities.
LoRaWAN vs. Cellular IoT: Choosing the Right Connection
In the rapidly developing field of Internet of Things (IoT), choosing the appropriate connection method is crucial to ensure reliable data transmission. Two common options are LoRaWAN (Low Power Wide Area Network) and Cellular IoT. This article will compare these two connectivity methods to help you understand when to choose LoRaWAN versus Cellular IoT and make an informed decision based on your specific needs.
LoRaWAN Overview
LoRaWAN is a wireless connection protocol designed for low-power, long-distance communication. It is suitable for connecting long-distance devices such as sensors and remote monitoring equipment. The following are some features of LoRaWAN:
Long-distance communication: LoRaWAN is capable of achieving communication ranges of up to several kilometers in urban and rural environments, and even tens of kilometers in open areas.
Low Power Consumption: LoRaWAN devices typically operate in low power consumption mode and therefore can operate on battery power for extended periods of time.
Cost-Effectiveness: LoRaWAN equipment is relatively cheap and suitable for large-scale deployment.
Cellular IoT Overview
Cellular IoT is a method of connecting IoT devices using cellular network infrastructure such as 2G, 3G, 4G LTE, and 5G. It is typically used in applications that require high bandwidth and wider coverage. Here are some features of cellular IoT:
High bandwidth: Cellular IoT can provide high data transfer rates for bandwidth-intensive applications such as video streaming and audio communications.
Global Coverage: Cellular networks have been built globally, thus enabling global coverage.
Reliability: Cellular IoT typically provides high-reliability connectivity for critical applications such as emergency communications and medical equipment.
Choose the right connection
Choosing LoRaWAN or Cellular IoT depends on your specific needs and application scenarios:
Remote monitoring and sensor applications: If you need to connect sensors or devices scattered over a wide area and the data transmission requirements are not high, LoRaWAN may be a better choice. It excels in cost-effectiveness, low power consumption and long-distance communication.
High bandwidth and global coverage needs: If your application requires high bandwidth (such as HD video transmission) or requires global coverage, bluetooth low energy Module cellular IoT may be a better fit. The development of 5G technology makes cellular IoT a solution for high bandwidth needs.
Reliability and security: For critical applications, such as emergency communications and medical equipment, cellular IoT generally provides higher reliability and security.
Have you heard of "acid horn" in PCB design
To know what tamarind is, it is important to understand the PCB production process! Engineers who know something about the PCB production process know that before PCB production, the PCB diagram is drawn through circuit board design software, and then goes through the etching process of the PCB processing factory, and finally the designed PCB circuit is etched on the copper-clad board.
Single serial port server
WIFI serial server
Signal interface conversion By the way, a basic flow chart of PCB production process is attached Among the basic processes of PCB production process, the most important is the etching process. It uses chemical treatment to remove unnecessary copper from the copper-clad board through etching, and then leaves the required circuit diagram. To a certain extent, Acid Traps can be said to be left by etching. "side effects".
The chemicals used to etch circuits should be removed during the neutralization and water washing process, but in the acute angle area formed by the PCB connection, that is, the narrowest acute angle, it is easy to cause corrosive chemicals to remain, which is like a trap to surround and suppress the residual corrosive chemicals. substance.
By slowly and continuously corroding the copper in the acute-angle area, over time, the line resistance of the wiring will increase or a virtual connection state will occur, and short circuit faults will easily occur, making troubleshooting difficult. This is the headache of Acid Traps. "corner" phenomenon. PCB trace angle problem This involves a PCB trace angle issue.
Everyone has always emphasized: Don’t trace traces at right angles! So, here comes the question. If you are not allowed to go at a right angle, is it better to go at a 45° angle or an arc? Is 90° right-angle routing really okay? At first, I was obsessed with the corner angle of the wiring. I looked up the history of our predecessors. In the 1990s, Intel launched PCI bus technology. Since then, it has accelerated the development of "high-speed" systems. As for whether PCB traces can go at sharp angles, the conclusion is definitely not possible. From the perspective of PCB DFM, sharp angles in PCB traces should be avoided, and acid traps should be avoided as much as possible.