Automising the CAN Communication System Using Raspberry-Pi

Abstract

This Project is set an objective of developing and improvement of communication system of Electrical parameters control in EV system with accuracy the use of latest controller Raspberry-pi and CAN module, today’s traction control unit TCU has CAN communication platform, which communicates with all accessories e.g., Cluster, Vehicle control unit, Battery management system BMS, CAN plays vital role in vehicle network management for program flashing. The focus of this project to check effectiveness CAN protocol in TCU with respect to e-motor functions to have command control and atomize its functions and acknowledge the status and error from the TCU, an addition to that managing the all data received from the system in a cloud management is to be performed here with example of electric motor and illuminating devices. Cloud data storage will be help full for industries and owner of object in securities. Adding CAN bus with Raspberry-pi for many applications is the aim of this project by adding necessary futures.

Introduction

I. INTRODUCTION

The modern fast-moving world is adopting towards smart technology which is also leads advances ideas like artificial intelligence, CAN is also one of communication device which can perform an ultimate role in this project for controlling as per commands by communicating with raspberry-pi.

The CAN standard was devised to fill many needs. Before CAN was introduced, each electronic device is connected to other devices using many wires to enable communication. The Controller Area Network (CAN) is a vehicle bus standard which allows various electronic components such as microcontrollers, sensors, actuators to communicate with each other without a host computer, with speed up to 1Mb/s.

It is a message-based protocol designed specifically for automotive, but it is also used in areas such as aerospace, and industrial automation. For hardware design, the CAN controller used in this research is CAN transceiver MCP 2515 which uses the SPI interface to widen CAN Bus interface.

One of the most popular Single Board Computer (SBC) is the Raspberry Pi (RPi), with a vast online community of users around the world. Build on open-source principles and motivated by the non- profit incentive to increase global access to computing and solve a variety of real-world challenges using digital technology, these low- cost SBCs bring together external hardware, sensors and controller interfaces, with user- friendly programming capabilities, high connectivity, and desktop functionality.

 Raspberry pi is one of the main components which monitors overall system, using TFT screen it gets the input commands from the user and it is able to process those commands to CAN module help of the SPI communication and also receives feedback data from the different devices in this system those received data will be displayed on the TFT screen.

II. LITERATURE SURVEY

A. Implementation Of CAN Bus Communication to UART In LAPAN-A4 Satellite

Rommy Hartono;A Hadi Syafrudin;Wahyudi Hasbi;Rakhmad Yatim 2018 IEEE International Conference on Aerospace Electronics and Remote Sensing Technology (ICARES)

Year: 2018 | Conference Paper | Publisher: IEEE

This paper is aimed at the design and implementation of CAN using microchip MCP and microcontroller for being able to communicate with SLIM4 over CAN Bus.

For hardware design, the CAN controller used in this research is MCP 2515 and the CAN transceiver is MCP 2551 which uses the SPI interface to widen CAN Bus interface.

B. VANET based overtake mishap preventive advance road safety system

Aniket D. Sathe;Singh; Tanmay;Vivek DeoDeshmukh 2016 International Conference on Inventive Computation Technologies (ICICT)  Year: 2016

In this study an Overtake Mishap preventive road safety system is designed. The System makes driver aware about the platoon of which its vehicle is a part. The system helps driver to know the overtaking behavior of back vehicle. The system with the help of front vehicle's response also guides driver when it decides to overtake it. The Road-Side-Devices help to maintain the communication amongst vehicles in its coverage area. Every vehicle receives and broadcasts the required information through In- Vehicle-Module when it is traveling through coverage of Road-Side-Device. The information shared by every vehicle is received by In-Vehicle- Module of other vehicles via Road-Side-Device and on the basis of that each In-Vehicle-Module operates Decision algorithm to decide front and back vehicle in reference to itself.

C. Electric Vehicle Charging Communication Test- bed following CHAdeMO Devika Anil;P. Sivraj 2020        11th       International Conference on Computing, Communication and Networking  Technologies (ICCCNT). 15 October 2020 Year: 2020

This paper presents software and hardware framework for an electric vehicle charging communication following CHAdeMO based data exchange between EV and Electric Vehicle Supply Equipment (EVSE). As CHAdeMO IEEE - 49239 11th ICCCNT 2020 July 1-3, 2020 - IIT - Kharagpur Authorized licensed use limited to: University of Gothenburg. Downloaded on November 20,2020 at 07:36:27 UTC from IEEE Xplore. Restrictions apply. Kharagpur, India uses Controller Area Network (CAN) for message exchange, Vehicular Network Toolbox and MCP2515 CAN module are used to implement CHAdeMO message flow over CAN in MATLAB and Arduino respectively. User can simulate CHAdeMO based message flow in this setup as in real scenario. This test system also gives user provision to see the behavior of EV and EVSE under various operational conditions during charging in charger or vehicle.

D. Rajesh Kannan Megalingam1, Arjun Sahajan1, Anandu Rajendraprasad1, Sakthi prasad Kuttankulangara Manoharan1, Chennareddy Pavanth Kumar Reddy2 Department of Electronics and Communication Engineering, Amrita Vishwa Vidyapeetham, Amritapuri, India Department of Electrical Engineering, University of Dayton, Dayton, Ohio, USA. 26 May 2021

In this research work we propose a mechanism where six actuator nodes which represent the six degrees of freedom (DOF) of a robotic arm are connected via the Controller Area Network (CAN) bus to forms its communication network and receives commands from a common controller (Raspberry Pi). A simulation environment is created in the Gazebo simulator of host simulator and real time analysis of the robotic arm is done via Rviz. Through the simulation, the robotic arm receives instructions from a joystick integrated to the same host PC. The position of each joint with respect to the command from the joystick is sent over WIFI to the common controller and an indication that the message has been received is shown on hardware using the CAN network setup. The arrangement creates an effective framework for learning the working of complex robotic systems with several DOFs.

E. Gao xian, Li lin-sheng College of electronic information engineering Taiyuan University of science and technology Taiyuan, Shanxi, China E- mail: gaoxianlin@yeah.net 30 August 2020.

Through analyzing of the delay composition of message transmission in CAN bus, it discusses the two main parts of information delay in CAN network the frame delay and media access delay. The frame delay is determined by frame length and baud rate, so we can reach different frame delay under the different frame structure and different baud rate. Through the latitudinal and longitudinal comparison, it analyses the frame delay on the different situations. And the media access delay is mainly caused by the CAN protocol themselves. We can improve the site's priority by dynamic priority algorithm. In this paper, module increase is analyzed. This method can increase the sites priority, so that the real time of CAN network will be improved

F. Pi Models for a Broad Spectrum of Interests Eric Gamess MCIS Department Jacksonville State University Jacksonville, Alabama, USA . Sergio  Hernandez Information     Security Citibank, New York USA

In this paper, we evaluated the performance of a number of SBCs: RPi Zero W, RPi Zero 2 W, RPi Zero 2 W overclocked, RPi 3B, RPi 3B+, and RPi 4B. The RPi 4B RPi 4B have an integrated port. They offer Fast Ethernet (100 Mbps), Gigabit Ethernet over USB 2.0 (maximum throughput 300 Mbps), and Gigabit Ethernet, respectively. For the other SBCs of this study, Ethernet can still be added through a USB port. However, this solution should be considered only in existing projects as an extension, since new projects will be more cost-effective when using RP is with native Ethernet support.

III. CAN SPECIFICATIONS

A. CAN

1. CAN uses pair of twisted wire cables. It offers easy and simplified handling.
2. Multiple ECUs can be connected on the same CAN-BUS.
3. Developed to support and enable high speed and efficient communication in automobiles.
4. It has reduced weight and wire costs.
5. Error reduction.
6. A quick exchange of data. Uses arbitration process; hence top priority data get access of the bus.
7. Scope for upgradation.

B. CAN 2.0 B

1. Standard CAN 2.0A allows 11Bit data transmission (meaning, a total of 2048 different
2. Extended CAN 2.0B allows 29Bit data
3. transmission (that sums up to 536+ million messages)
4. Up to 1 Mb/s operation
5. Up to 10 MHz SPI clock speed
6. Standard DB9 connector for secure connection
7. Small PCB size for flexible designs 1.4" × 1.8" (3.6 cm × 4.6 cm)
8. 12-pin Pmod connector with SPI interface
9. Follows the Diligent Pmod Interface
10. Specification 1.1.0 type 2A
11. Libraries and example code available in resource center
12. CAN 2.0B controller with integrated transceiver
13. Suitable for automotive applications

IV.  ADVANTAGES

1. Low use of wiring due to its distributed control
2. Can be applied to many electrical environments without any issues.
3. Multi master and multicast features can be applied
4. High speed data rate
5. Low cost and light in weight and robustness
6. Supports auto retransmission for attribution lost messages
7. Built in error detection capabilities. (ack error, form error stuff error etc.)

The MCP2515 CAN module has varying applications. You can find a few examples below:

• Electronic Gear Shifting System
• Primary automation interface
• Robots Automation
• A car engine’s auto start and stop function
• Medical equipment

V. RASPBERRY PI-4B

1. Processor -Broadcom 2711, quad-core
2. Memory - 4GB
3. Connectivity - 2.4 GHz/5.0 GHz wireless LAN bluetooth5.0 BLE 2x USB 2.0 / 2 x USB 3.0 ports delivering true gigabyte ethernet.
4. Access -Extended 40 pin GPIO header.
5. Video & Sound-2 x HDMI 4K video
6. SD card Support – Micro SD card for loading OS & Storage
7. Input power – 5v/3A volt via USB type C connector, 5v DC via GPIO PoE Enabled.

Comparison Table

Conclusion

In this survey, we summarized, the selection of CAN module and raspberry pi, we concluded specified modules for the project design based on some particular observations about their uses in real time industrial applications and their advantages, the selected modules in CAN and raspberry pi are CAN mcp2515 and raspberry pi 4B accordingly TFT screen has been chosen for to provide UI commands to fulfil the aim of this project controlling, monitoring, and managing the data in cloud. CAN serves as a practical communication protocol for many industrial and automotive applications. Not only that, but it also offers other features.

References

[1] Implementation Of CAN Bus CommunicationTo UART In LAPAN- A4 Satellite Rommy Hartono;A Hadi Syafrudin;Wahyudi Hasbi;Rakhmad Yatim 2018 IEEE International Conference on Aerospace Electronics and Remote Sensing Technology (ICARES) Year: 2018 | ConferencePaper | Publisher: IEE [2] VANET based overtake mishap preventiveadvance road safety system Aniket D.Sathe;DivyaSingh;Tanmay Dalal;Vivek DeoDeshmukh 2016 International Conference on Inventive [3] Computation Technologies (ICICT)Electric Vehicle Charging Communication Test- bed following CHAdeMO Devika Anil;P. Sivraj2020 11th International Conference on Computing, Communication and Networking Technologies (ICCCNT). 15 October 2020 Year: 2020 [4] Rajesh Kannan Megalingam1, Arjun Sahajan1, Anandu Rajendraprasad1, Sakthi prasad Kuttankulangara Manoharan1, Chennareddy Pavanth Kumar Reddy2 Department of Electronics and Communication Engineering, Amrita Vishwa Vidyapeetham, Amritapuri, India Department of Electrical Engineering, University of Dayton, Dayton, Ohio, USA. 26 May 2021 [5] Gao Xian, Li Lin-sheng College of electronic information engineering Taiyuan University of science and technology Taiyuan, Shanxi, China E-mail: gaoxianlin@yeah.net 30 August 2020. [6] “Raspberry Pi 4 B Review and Benchmark - What’s Improved over Pi 3 B+,” Sep. 2019. https://ibug.io/blog/2019/09/raspberry-pi-4- reviewbenchmark.

Copyright

Copyright © 2022 H Shambhavi, Dr. Devaraju R. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.