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To overcome the shortcomings of compatibility with different CAN (Controller Area Network) communication devices and applicability in different fields for the current real-time monitoring systems for ECU (Electronic Control Unit) based on CAN bus, a novel architecture for the monitoring system was put forward, and the corresponding monitoring software has been developed, which consists of a communication...
In order to monitor technical information in vehicle, monitoring system is designed based on CAN Bus. The hardware of data acquisition ECU is designed. By scheduling priority and send cycle, every node is optimized by considering bus average load rate and maximum delay time limit. Experimental results show that maximum delay time of node with lowest priority is reduced by 30% after modify, and CAN...
The hardware composition and software flow of the display terminal system used in PHEV (plug-in hybrid electrical vehicle) has been described in detail in this paper, and this display terminal system can receive and parse the data from the CAN bus and display the energy flow and the information status of electronic control units of PHEV, possess the function that provide the hierarchical fault diagnose...
The application of CANopen and Modbus Protocol in rotary screen printing machine control system was introduced, making ZIMMER rotary screen printing machine as the research object, by Delta touch screen, SYSTEC CANopen series PLCmodule-C14, MOOG servo controller T161, MOOG servo motor G400 and OpenPCS programming platform. And it was shown that how to implement the communication between touch screen...
There is an increasing interest in studying quantized control systems with multiple sensors and actuators distributed for wired and wireless networks. In this paper, we formulate a real-time scheduling problem with bandwidth constraints from quantization control perspective and develop a quantization real-time scheduling scheme for networked and quantized control systems of multi-tasks linear dynamical...
Tracking and tracing system is an important technology to guarantee food product safety. A design and realization of intelligent food production processing monitoring system for pork production processing is introduced. Production data in the processing of the system is studied. Using radial base function (RBF) neural network, fuzzy data processing techniques, the system analyze over-range abnormality...
Taking the main engine and propulsion system of the large-scale container ships as the controlled object, a type of main engine remote control simulation system is designed, using the CAN-bus and database administration technology as well as touch-screen equipments. The system is composed of ECR controls system, BCR control system, and local control system with high density of integration. It can...
Many heterogeneous embedded systems, for example industrial automation and automotive applications, require hard-real time constraints to be exhaustively verified - which is a challenging task for the verification engineer. To cope with complexity, verification techniques working on different abstraction levels are best practice. SystemC is a versatile C++ based design and verification language, offering...
The Controller Area Network (CAN) protocol was originally developed for distributed automotive applications in the 1980s, and has previously proved to be extremely popular for the implementation of low-cost distributed systems. Whilst CAN has many features that make it suitable for such applications, it also has a number of well-discussed drawbacks; data transmission is limited to a fixed 8-byte payload...
The past evolutions of manufacturing processes demand more flexible automation systems. The solution, for the multi-axis positioning systems, is to replace the traditional architectures with distributed motion control architecture based on local intelligent drives. This paper presents the control of an articulated arm robot with two local intelligent drives connected on a CAN network to a motion controller...
In order to change the non-intelligent hospital transfusion system, a design of intelligent high performance infusion devices based on AT89C52 Microcontroller is introduced. AT89C52 controlled stepper motors, and input and display capabilities of interface were achieved by 8279, two LED used as alarm display (bottle / blocking and over speed / leakage alarm) when an error occurs in the system. Besides,...
CAN is a communication protocol largely used in automotive and industrial appliances because of the simple procedure for its parameterization and the low cost of its circuitry. The native CAN, however, does not assure the fault-tolerance level required by safety-critical appliances and somewhat sophisticated protocols have been introduced for their networking. In an attempt to keep on the advantages...
Presents a collection of slides covering the following topics: time sensitive network control systems; NCS delay/packet drop issues, network protocols; and applications.
To meet high performances of automotive time-triggered CAN (TTCAN) real-time control bus, a key problem is how to distribute time windows within system matrix of TTCAN, a new harmonic periods makeup (HPM) scheduling optimization algorithm based on average loading was proposed and the scheduling strategy was explained concretely. The HPM scheduling algorithm aimed to make event-triggered messages gain...
With more than one million people dying worldwide on the roads every year and lots of money in property loses, traffic safety remains an unsolved matter. The potentials of in-vehicle safety systems are currently investigated to improve this situation. Hence, embedded system which can collect some important context information and warn the driver in order to improve the safety of driving is needed...
The airport airfield lighting system is very important to approach and land safely, however the environments for the airfield lighting are usually rough and wide, posing great difficulties to inspection and maintaining. Therefore the online monitoring and control to the lighting system through computer technology and network technology is imperative. The paper presents the composition method of the...
Controller Area Network (CAN) provides an inexpensive and robust network technology in many application domains. However, the use of CAN is constrained by limitations with respect to fault isolation, bandwidth, wire length, namespaces and diagnosis. This paper presents a solution to overcome these limitations by replacing the CAN bus with a star topology. We introduce a CAN router that detects and...
Although the probabilistic model checking tool called PRISM had been applied in many communication systems, such as wireless local area network, Bluetooth, and ZigBee, the technique is not used in a controller area network (CAN). In this paper, we use PRISM to model the mechanism of priority messages for CAN because the mechanism lets CAN as leader in serial communication for automobile and industry...
The design of a 13 degree-of-freedom autonomous biped robot, ABL-B1 is presented. Actuation is provided by brushed motors coupled with harmonic drive gear heads. A Control Area Network (CAN) provides a central bus for communication between all the actuators and sensors in the system. CAN-enabled microcontrollers allow for a distributed digital control loop architecture. The control hardware is coupled...
Dynamic schedule strategies can bring higher resource utilization of network then static ones, while techniques such as least slack time first (LSF) and earliest deadline first(EDF) scheduling can hardly be applied to CAN bus because the scope of deadline of CAN bus messages are too large while the bit sizes in CAN frame identifier is limited, and it is difficult to guarantee strict time synchronization...
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