scholarly journals Design of CAN Bus Communication Interfaces for Forestry Machines

Computers ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 144
Author(s):  
Geoffrey Spencer ◽  
Frutuoso Mateus ◽  
Pedro Torres ◽  
Rogério Dionísio ◽  
Ricardo Martins
Keyword(s):  
Can Bus ◽  
New Products ◽  
Experimental System ◽  
Area Network ◽  
Electronic Control ◽  
Transportation Industry ◽  
Remote Diagnosis ◽  
Sensors And Actuators ◽  
Remote Communication ◽  
Control Units

This paper presents the initial developments of new hardware devices targeted for CAN (Controller Area Network) bus communications in forest machines. CAN bus is a widely used protocol for communications in the automobile area. It is also applied in industrial vehicles and machines due to its robustness, simplicity, and operating flexibility. It is ideal for forestry machinery producers who need to couple their equipment to a machine that allows the transportation industry to recognize the importance of standardizing communications between tools and machines. One of the problems that producers sometimes face is a lack of flexibility in commercialized hardware modules; for example, in interfaces for sensors and actuators that guarantee scalability depending on the new functionalities required. The hardware device presented in this work is designed to overcome these limitations and provide the flexibility to standardize communications while allowing scalability in the development of new products and features. The work is being developed within the scope of the research project “SMARTCUT—Remote Diagnosis, Maintenance and Simulators for Operation Training and Maintenance of Forest Machines”, to incorporate innovative technologies in forest machines produced by the CUTPLANT S.A. It consists of an experimental system based on the PIC18F26K83 microcontroller to form a CAN node to transmit and receive digital and analog messages via CAN bus, tested and validated by the communication between different nodes. The main contribution of the paper focuses on the presentation of the development of new CAN bus electronic control units designed to enable remote communication between sensors and actuators, and the main controller of forest machines.

scholarly journals Design of a TFT-LCD Based Digital Automobile Instrument

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Yunsong Xu ◽  
Shen Yin ◽  
Jinyong Yu ◽  
Hamid Reza Karimi
Keyword(s):  
Can Bus ◽  
Liquid Crystal Display ◽  
Low Cost ◽  
Thin Film Transistor ◽  
Electronic Control ◽  
Basic Principles ◽  
Interface Circuit ◽  
Data Query ◽  
Control Units ◽  
Drive Circuit

The traditional mechanical instrument lacks the ability to satisfy the market with characters of favorable compatibility, easy upgrading, and fashion. Thus the design of a TFT-LCD (thin film transistor-liquid crystal display) based automobile instrument is carried out. With a 7-inch TFT-LCD and the 32-bit microcontroller MB91F599, the instrument could process various information generated by other electronic control units (ECUs) of a vehicle and display valuable driving parameters on the 7-inch TFT-LCD. The function of aided parking is also provided by the instrument. Basic principles to be obeyed in circuits designing under on-board environment are first pointed out. Then the paper analyzes the signals processed in the automobile instrument and gives an introduction to the sampling circuits and interfaces related to these signals. Following this is the functional categorizing of the circuit modules, such as video buffer circuit, CAN bus interface circuit, and TFT-LCD drive circuit. Additionally, the external EEPROM stores information of the vehicle for history data query, and the external FLASH enables the display of high quality figures. On the whole, the accomplished automobile instrument meets the requirements of automobile instrument markets with its characters of low cost, favorable compatibility, friendly interfaces, and easy upgrading.

scholarly journals A CAN-Bus Lightweight Authentication Scheme

Sensors ◽  
2021 ◽  
Vol 21 (21) ◽  
pp. 7069
Author(s):  
Jia-Ning Luo ◽  
Chang-Ming Wu ◽  
Ming-Hour Yang
Keyword(s):  
Can Bus ◽  
Denial Of Service ◽  
Driving Safety ◽  
Area Network ◽  
Delay Guarantee ◽  
Security Issues ◽  
Control Units ◽  
Safety Improvement ◽  
Bus Safety ◽  
Lightweight Authentication

The design of the Controller Area Network (CAN bus) did not account for security issues and, consequently, attacks often use external mobile communication interfaces to conduct eavesdropping, replay, spoofing, and denial-of-service attacks on a CAN bus, posing a risk to driving safety. Numerous studies have proposed CAN bus safety improvement techniques that emphasize modifying the original CAN bus method of transmitting frames. These changes place additional computational burdens on electronic control units cause the CAN bus to lose the delay guarantee feature. Consequently, we proposed a method that solves these compatibility and security issues. Simple and efficient frame authentication algorithms were used to prevent spoofing and replay attacks. This method is compatible with both CAN bus and CAN-FD protocols and has a lower operand when compared with other methods.

Design and Development of Vehicular Monitoring System for Passenger Car Based on Protocol SAE J1939

2010 ◽  
Vol 34-35 ◽  
pp. 1305-1308 ◽  
Author(s):  
Guo Hui Zhang ◽  
Jian Fang Sun
Keyword(s):  
Monitoring System ◽  
System Architecture ◽  
High Speed ◽  
Can Bus ◽  
Monitoring Device ◽  
Electronic Control ◽  
Control Units ◽  
Monitoring Software ◽  
Share Information

In this paper the system architecture of the vehicular monitoring system based on high speed CAN bus and low speed CAN Bus and SAE J1939 so as to share information between different ECUs (Electronic Control Units) has been designed. Using Visual C++ 6.0, vehicular monitoring software platform has been developed to realize vehicular runtime parameters monitoring, device controllers monitoring and malfunction monitoring. Also a case study has been given, and the results of the system application are reasonable.

Development of a new calibration and monitoring system for in-vehicle electronic control units based on controller area network calibration protocol

2005 ◽  
Vol 219 (12) ◽  
pp. 1381-1389 ◽  
Author(s):  
J-X Wang ◽  
J Feng ◽  
X-J Mao ◽  
L Yang ◽  
B Zhou
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Monitoring Program ◽  
Controller Area Network ◽  
Present System ◽  
Area Network ◽  
Electronic Control ◽  
Control Units ◽  
Calibration Protocol ◽  
Calibration Program

An interactive user-friendly calibration and monitoring system is critical for the development of electronic control units (ECU). In this study, a controller area network (CAN) driver, CAN calibration protocol (CCP) driver, monitoring program, and calibration program in the ECU were designed with the assembly language. The inquiry mode was used in monitoring the program and the interrupt mode was used in the calibration program, which ensured the real-time, simultaneous communication and interruption for the main control program. Mirror memory and the random access memory (RAM) calibration technique were used to reduce the write and read accesses to ECU, and, with the mapping of calibration RAM, calibration parameters could be changed online and used instantly. An efficient database management was used to achieve an accurate dynamic link between PC and ECU. The present system provides reliable, accurate, and quick CAN communication between ECU and PC, with a baud rate up to 500K bit/s. It also provides a friendly, compatible, and flexible calibration interface, and the functions of online calibration and real-time monitoring. This system has been used successfully in high-pressure, common rail, electronically controlled diesel engines and pure electrical vehicles (after a small modification).

Design of a Gateway for Remotely Underwater Vehicles

2012 ◽  
Vol 209-211 ◽  
pp. 2138-2141
Author(s):  
Wei Dong Liu ◽  
Xiang Yu Li ◽  
Li'e Gao
Keyword(s):  
Serial Communication ◽  
Communication Protocols ◽  
Underwater Vehicles ◽  
Area Network ◽  
Electronic Control ◽  
Embedded Operation System ◽  
Operation System ◽  
Control Units ◽  
Protocol Conversion ◽  
First In First Out

A gateway based on ARM is presented to achieve mutil-protocol conversion among different electronic control units. To guarantee its real-time ability and stability, the μC/OS-II embedded operation system was adopted. The first-in-first-out data queue is used to balance the communication rate among the different communication protocols which consist of the Controller Area Network, TCP/IP and RS-232. The gateway can be used in remotely manipulation between the console with Ethernet and remote underwater vehicle with other serial communication protocols.

scholarly journals Architecture of on-line data acquisition system for car on-board diagnostics

2019 ◽  
Vol 252 ◽  
pp. 02003 ◽  
Author(s):  
Bartosz Kowalik ◽  
Marcin Szpyrka
Keyword(s):  
Data Acquisition ◽  
Electronic Devices ◽  
Area Network ◽  
Electronic Control ◽  
Instrument Cluster ◽  
Abnormal Behaviour ◽  
Automated Data Collection ◽  
Data Mining Approach ◽  
Control Units ◽  
On Line

Modern cars produced for the last two decades are full of electronic devices called Electronic Control Units (ECU). They are responsible for collecting diagnostic data from different components such as the engine, breaks etc. using probes and sensors. The collected data are validated against built-in heuristic and abnormal behaviour is reported to a driver by a gauge on an instrument cluster. ECUs use data provided by other ECUs. Information is transmitted over the dedicated network called Controlled Area Network (CAN). Every car equipped with ECUs and CAN exposes information over universal diagnostic interface called On-Board Diagnostic. Using the interface, it is possible to gather car's live data. With the data mining approach, it is possible to exploit the collected more effectively to obtain much more information about the functioning of car components than it is provided by standard vehicle equipment. The paper describes how to build a laboratory set to facilitate automated data collection. It consists of three major components: data acquisition, automated logs collection and persistent storage with presentation tools. The first component is based on Torque application for which reverse engineering was performed.

Development of Field Control System of Automated Guided Vehicle Based on Wireless Local Area Network and CAN Bus

2013 ◽  
Vol 579-580 ◽  
pp. 792-797
Author(s):  
Yan Wang ◽  
Zhong Da Yu ◽  
Chen Xing Bao ◽  
Dong Xiang Shao
Keyword(s):  
Control System ◽  
Real Time ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Can Bus ◽  
Control Unit ◽  
Local Area ◽  
Automated Guided Vehicle ◽  
Area Network ◽  
Control Units

In this paper, we realize a real-time communication based on wireless local area network (WIFI) and controller area network (CAN) bus and develop a distributed control system for an automated guided vehicle (AGV). The system consists of two levels: (1) communication between AGVs and main computer based on WIFI, (2) communicationg between control units of AGV based on CAN bus. A real-time operating system μC/OS-II was used to control time, which significantly reduces the time for program and improves development efficiency. Finally, a small-size distributed AGV controller is developed as the main control unit of AGV and a distributed I/O system is developed based on it.

scholarly journals Collecting Big Data from Automotive ECUs beyond the CAN Bandwidth for Fault Visualization

2017 ◽  
Vol 2017 ◽  
pp. 1-13 ◽  
Author(s):  
Jeong-Woo Lee ◽  
Ki-Yong Choi ◽  
Jung-Won Lee
Keyword(s):  
Big Data ◽  
Controller Area Network ◽  
Area Network ◽  
Cumulative Number ◽  
Hardware In The Loop ◽  
Electronic Control ◽  
Automotive Electronic ◽  
Control Units ◽  
Multiple Regions

A hardware-in-the-loop (HiL) test is performed to verify the software functions mounted on automotive electronic control units (ECUs). However, the characteristics of HiL test limit the usage of common debugging techniques. Meanwhile, the logs of how the program uses memory can be utilized as debugging information collected by the controller area network (CAN). However, when the 32 KB memory is observed with 10 ms period, about 96% of the data on each cycle is lost, since the CAN only can transfer 1.25 KB of data at each cycle. Therefore, to overcome the above limitations, in this study, the memory is divided into multiple regions to transmit generated data via CAN. Next, the simulation is repeated for the each divided regions to obtain the different areas in each simulation. The collected data can be visualized as update information in each cycle and the cumulative number of updates. Through the proposed method, the ECU memory information during the HiL test was successfully collected using the CAN; the transmission is completed without any loss of data. In addition, the data was visualized in images containing the update information of the memory. These images contribute to shortening the debugging time for developers and testers.

scholarly journals An Overview of CAN-BUS Development, Utilization, and Future Potential in Serial Network Messaging for Off-Road Mobile Equipment

2021 ◽  
Author(s):  
Hannah M. Boland ◽  
Morgan I. Burgett ◽  
Aaron J. Etienne ◽  
Robert M. Stwalley III
Keyword(s):  
Distributed Control ◽  
Precision Agriculture ◽  
Can Bus ◽  
Electronic System ◽  
Area Network ◽  
Network Information ◽  
Control Units ◽  
Smart Farming ◽  
Industry Applications ◽  
Future Potential

A Controller Area Network (CAN) is a serial network information technology that facilitates the passing of information between Electronic Control Units (ECUs, also known as nodes). Developed by BOSCH in 1986 to circumvent challenges in harness-connected systems and provide improved message handling in automobiles, the CAN interface allows broadcast communication between all connected ECUs within a vehicle’s integrated electronic system through distributed control and decentralized measuring equipment. Since the early uses of CAN in car engine management, improvements in bitrate, bandwidth, and standardization protocols (such as ISO 11898 and SAE J1939) have led to CAN utilization in various industry applications, such as factory automation, aviation, off-highway vehicles, and telematics. Alternative wired and wireless technologies have been used to connect and network with CAN-BUS (such as Ethernet, Bluetooth, Wi-Fi, ZigBee, etc.), further expanding the diversity of applications in which the serial network is employed. In this chapter, the past, present, and prospective future developments of CAN technology, with focused attention on applications in the agricultural and off-road sectors are broadly examined. CAN technology fundamentals, standards creation, modern day uses, and potential functionalities and challenges specific to CAN in the wake of precision agriculture and smart farming are discussed in detail.

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