This article mainly shares some popular science knowledge about automotive communication technologies, hoping to be helpful to everyone. Bus Communication Communication protocols connect various ECU nodes within the vehicle, forming a local area network inside the car. Nodes complete predetermined control functions and actions, such as motor start and stop, based on their own sensor … Read more
Background The I2S bus is a common bus that needs to be mastered. Concepts The I2S (Inter-IC Sound) bus, also known as the integrated circuit built-in audio bus, is a bus standard formulated by Philips for audio data transmission between digital audio devices. This bus is responsible for data transmission between audio devices and is … Read more
As a seasoned electrical engineer, one should be well-versed in various bus systems. Today, I have compiled relevant materials for everyone! 1. Overview 1. Introduction to IEC61158 IEC61158 is the fieldbus standard from the International Electrotechnical Commission (IEC). Currently, the IEC61158 fieldbus standard has developed a series of standards, with the latest version being IEC61158-6-20 … Read more
The termination resistor for the CAN bus is generally 120 ohms. In fact, during design, it consists of two 60 ohm resistors connected in series. There are typically two nodes of 120Ω on the bus, which is a well-known fact for anyone with a basic understanding of the CAN bus. However, as someone who struggles … Read more
When selecting a DAQ device, have you considered these influencing factors? —— The choice of architecture and robustness will determine the applicable scenarios of the system, such as a controlled laboratory or unpredictable field conditions. —— The selected bus can determine not only the throughput and latency of the DAQ system but also the portability … Read more
1. Foundation Fieldbus (FF) This was established in September 1994 by the collaboration of American Fisher-Rousemount, Yokogawa, ABB, Siemens, Invensys, and over 80 other companies to create the ISP protocol, along with Honeywell and over 150 companies in Europe to create the WorldFIP protocol. This bus has been widely used in the field of process … Read more
In the development of industry, fieldbus plays a very important role, mainly applied in fields such as petroleum, chemical, electric power, medicine, metallurgy, manufacturing, transportation, national defense, aerospace, agriculture, and buildings. Today, I will introduce several types of fieldbus such as the Modbus communication protocol, PROFIBUS, FF, and CAN bus. Origin and Development of Modbus … Read more
Field of Application Smart Manufacturing Pain Points · Issue 1: Insufficient Bandwidth and Poor Anti-Interference of Traditional Fieldbus Technology With the intelligent development of the manufacturing industry and the exponential increase in the number of bus nodes, traditional fieldbus technologies (such as CAN, Profibus, etc.) can no longer meet the transmission requirements of massive data. … Read more
Bus control, as the name suggests, involves a single bus circuit connected to multiple devices. As shown in the figure below, all smoke exhaust outlets in the same smoke control zone can be controlled by a single bus control line. By pressing one button on the bus control panel, all smoke exhaust outlets can be … Read more
Introduction to In-Vehicle Networks As the complexity of electronic control systems increases, and the demand for communication capabilities among the electronic control units (ECUs) within vehicles grows, the use of point-to-point connections leads to an increase in wiring harnesses inside the vehicle. This creates significant challenges for reliability, safety, and quality in automotive design and … Read more