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Based on in-depth research on the characteristics of the current train receiving and departure operations of China's railway stations, the urgent need of traffic standardization, automation and safety control and the status quo of the construction of the traffic command system in China, the overall scheme for the establishment of a TDCS/CTC-based train receiving and departure operation management-control...
Traditional PLC system in the event of system failure, there is no perfect mechanism to ensure the safety of control, the safety PLC based on heterogeneous dual-processor redundant structure can meet the requirements of industrial control for equipment and personnel, improve the reliability of industrial control. In this paper, according to the operation requirements of safety PLC based on heterogeneous...
This paper presents the design and implementation of a controller that works with Fuzzy Logic, which allows to control the flow of a fluid in a training station of flow. The controller with Fuzzy Logic is implemented using two different low-cost boards: Arduino UNO and Raspberry Pi3. The purpose of this work is to analyze the behavior of these two boards when they are used with an advanced control...
The intelligent control technology of agricultural machinery based on satellite navigation system is an important part of modern agriculture fine production. This paper through the technical theory analysis, system hardware and software design, control terminal research and development, the actual application of the overall research, the use of embedded system hardware and software collaborative optimization...
The paper suggests very fast electronic solutions for priority buffers that take data from many potential sources, accumulate them in a register, and output the most priority item in run time in such a way that as soon as a new value arrives it is included in the set with all previously received and untreated items and properly handled. It is shown that such circuits are required for real time embedded...
The issues of software and hardware development are considered of data logging into systems of testing complex objects. The describes the architecture of a system for testing complex scientific-technical objects. In the list of original elements of the concept of building highly reliable, fast-reconfigurable interactive test monitoring and control systems: — using of original technology of representation...
This paper describes the design and implementation of a remote brush direct-current(DC) motor speed control platform based on WiFi. The platform consists of ARM11, Moter Driver Circuit(L298N), DC, Encoder and Speed Meter, ARM11 is equipped with the Linux and selected as the main processor to realize remote control and feedback of the motor's speed in WiFi environment. And then this article uses the...
The paper presents the system architecture, development and prototype implementation of a new integrated system for simulation of automated industrial processes using advanced technologies, in accordance with CPS/Industry 4.0 principles. The need to develop such a system is underscored by the interest of the educational stakeholders: students, faculty members, high-level industry partners, for an...
Treadmill is the commonest method to get a good health, but traditional treadmill has limited functions and low intelligence. While embedded technology implements special function and is controlled by internal computer system. Putting embedded technology into treadmill can enhance the intelligence and add extra functions. In this paper, system structure and work way of treadmill were analyzed scientifically...
Today's industrial requirements regarding the ability of embedded devices used for decentralized automation are increasing. Industrial providers of automation equipment strive to make their products and thus, industrial plants, smarter to raise efficiency. This evolution is based on new technologies like machine learning, predictive maintenance, sensor fusion and advanced process controls. These techniques...
A recent development in multicore technology has enabled development of hundreds or thousands core processor. However, on such multicore processor, an efficient hardware cache coherence scheme will become very complex and expensive to develop. This paper proposes a parallelizing compiler directed software coherence scheme for shared memory multicore systems without hardware cache coherence control...
In this paper, we propose an edge computing platform that can coordinate with each computing resources of device, edge node and cloud for diversifying data can be modularized and actively deployed in cooperation within the wide area network. This platform brings transparent processing environment for IoT devices according to a data characteristic or use purpose. We have been developing the platform...
As it optimizes the resource utilization of FPGA over time and space, Dynamic Partial Reconfiguration is an important feature of FPGA. The Internal Configuration Access Port (ICAP) controller is an important part of reconfiguration system with which to access the configuration registers of FPGA. By reducing the resources consumed by ICAP controller, more resources will be available for the reconfigurable...
Because of hardware faults, the situation that the processor cannot perform properly is occurred frequently in large scale software-intensive systems. Most of traditional fault-tolerant methods do not distinguish the type of hardware failure. In view of this, we propose self-repairing software architecture for predictable hardware faults. By introducing computational reflection, the software architecture...
Until recently, IT security received limited attention within the scope of Process Control Systems (PCS). In the past, PCS consisted of isolated, specialized components running closed process control applications, where hardware was placed in physically secured locations and connections to remote network infrastructures were forbidden. Nowadays, industrial communications are fully exploiting the plethora...
A dynamic positioning controller based on the digital signal processor (DSP) is designed for certain crane vessel on the basis of the SRI-VC2110DP dynamic positioning system developed by Shanghai Ship and Shipping Research Institute. Based on the actual needs for the dynamic positioning controller, the hardware circuit consisting of dual CAN bus interface, dual Ethernet interface and I/O interface...
Software-Defined Networks (SDN) rely on flow tables to forward packets from different flows with different policies. To speed up packet forwarding, the rules in the flow table should reside in the forwarding plane as much as possible to reduce the chances of consulting the SDN controller, which is a slow process. The rules are usually cached in the forwarding plane with a Ternary Content Addressable...
Modern mechanical engineering systems are primarily designed to perform a specific system process in an optimal manner. For this purpose, they use control systems that monitor and influence the process with the help of sensors and actuators. Changing control values or (physical) disturbances are recorded and considered by the control systems. Problems arise whenever the disturbances are not physical,...
Modern Software Defined Networking (SDN) applications rely on sophisticated packet processing. However, there is a mismatch between control plane requirements and data plane capabilities caused by increasing hardware heterogeneity. To overcome this challenge, we propose TableVisor, a proxy-layer for the OpenFlow control channel that enables the flexible and scalable abstraction of multiple physical...
Based on actual requirements and safety reliability requirements, this paper presents a design scheme of safety portable voice information recording equipment. There are two main parts in the whole system, one is the voice recording board and the other one is the portable military laptop. The voice recording board uses advanced RISC machines chip as the main chip equipped with real-time operating...
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