Distributed remote temperature monitoring and acquisition system based on can bus
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This document describes a distributed remote temperature monitoring and acquisition system based on CAN bus. The system uses 8051 microcontrollers connected via CAN to monitor temperature sensors. CAN is a multi-master broadcast serial bus standard that allows nodes to send and receive messages. The microcontrollers are programmed using Embedded C and RIDE software. Key hardware components include AT89S52 microcontrollers, wired CAN controllers, a power supply, LCD display, temperature sensors, and Max485 transceivers.
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Distributed remote temperature monitoring and acquisition system based on can bus
- 1. Embedded systems Ph:7842522786 9948887244 Distributed remote temperature monitoring and Acquisition system based on CAN bus. ABSTRACT AIM: The main aim of this project is to implementation of industrial parameter control through CAN protocol by using 8051 microcontrollers. DESCRIPTION: CAN is a multi-master broadcast serial bus standard for connecting electronic control units (ECUs).Each node is able to send and receive messages, but not simultaneously: a message (consisting primarily of an ID usually chosen to identify the message-type/sender and up to eight message bytes) is transmitted serially onto the bus, one bit after another this signal pattern codes the message (in NRZ) and is sensed by all nodes. The devices that are connected by a CAN network are typically sensors, A CAN message never reaches these devices directly, but instead a host processor and a CAN controller are needed between these devices and the bus. Bit rates up to 1 Mbit/s are possible at network lengths below 40 m. Decreasing the bit rate allows longer network distances (e.g. 125 kbit/s at 500 m). The programming language used for developing the software to the microcontroller is Embedded/Assembly. The KEIL cross compiler is used to edit, compile and debug this program. Micro Flash programmer is used for burning the developed code on Keil in to the microcontroller Chip. Here in our application we are using AT89C51 microcontroller which is Flash Programmable IC.AT represents the Atmel Corporation represents CMOS technology is used for designing the IC. This IC is one of the versions of 8051. [email protected] Vijayawada Hyderabad Page 1
- 2. Embedded systems Ph:7842522786 9948887244 BLOCK DIAGRAM OF THE PROJECT can Rx can Tx Wired CAN Control 8051 Micro Display Unit Controller Wired CAN Control 8051 Micro Wired CAN Control 8051 Micro Temp sensor Controller Temp sensor Controller SOFTWARE: 1. Embedded C 2. RIDE 3. ISP to program the microconrollers HARDWARE: 1. At89s52 2. Wired CAN Control 3. Power supply 4. LCD 5. Temperature sensor 6. Max485 [email protected] Vijayawada Hyderabad Page 2
- 3. Embedded systems Ph:7842522786 9948887244 [email protected] Vijayawada Hyderabad Page 3