DATA TRANSMISSION WITH SIMULINK ON CONTROL OBJECTS ON CAN BUS

Abstract

Use for data transmission of CAN BUS which is widely applied in robotics, an avia and automotive industry in management systems to data exchange between microcontrollers, thanks to the simplicity and reliability now is considered.

It is revealed that CAN_API.dll software, compiled in the Microsoft Visual Studio (MVS) does not work with TDM-GCC-64 Matlab/Simulink because of different approach in names of the dll functions according to the standard C ++ 11. To fix this problem recompile of dll in the TDM-GCC-64 environment under Windows which only the dll developer can execute is required.

The optimum choice for implementation of data transmission with Simulink on stands with electroactuators on CAN BUS is use of adapters of TITAN ELECTRONICS INC which allow to realize the frequency of exchange of 100 Hz and above for 6 axis platforms.

The way of information compression and fall forward of exchange twice due to byte-by-byte entering of two float values in the data field with use of identical values of object identificators  of control for two cylinders and the subsequent their division in the program of microcontrollers of cylinders is offered.

The program of transfer/data exchange with Simulink on control devices of stands for which best value of quantization is chc=280 is developed. All this together allows to realize the frequency of exchange of f=100 of Hz and also acceptable time of modeling is higher.