embedded control systems
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2021 ◽  
Vol 4 (3) ◽  
Author(s):  
Alex A. Mosisa ◽  
Chen Xiangcai

Direction included in the technology of "Internet of Things" to analyze the working of sensor systems in extreme areas, that is the properties and features of embedded control systems based on them, to identify the main problems of operation and features of sensors in smart - systems. The article considers the main types of sensors used in smart systems, the main alignments used in the design and creation of systems based on them, and experimentally evaluates the dependence of the speed of sound on air temperature.


Author(s):  
D Vijendra Babu ◽  
K V Shijin ◽  
N S Sreejith ◽  
Anjana V Sureshbabu ◽  
C Karthikeyan

Computers ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 97
Author(s):  
George K. Adam ◽  
Nikos Petrellis ◽  
Panagiotis A. Kontaxis ◽  
Tilemachos Stylianos

The progress of embedded control systems in the last several years has made possible the realization of highly-effective controllers in many domains. It is essential for such systems to provide effective performance at an affordable cost. Furthermore, real-time embedded control systems must have low energy consumption, as well as be reliable and timely. This research investigates primarily the feasibility of implementing an embedded real-time control system, based on a low-cost, commercially off-the-shelf (COTS) microcontroller platform. It explores real-time issues, such as the reliability and timely response, of such a system implementation. This work presents the development and performance evaluation of a novel real-time control architecture, based upon a BeagleBoard microcontroller, and applied into the PWM (pulse width modulation) control of a three-phase induction motor in a suction pump. The approach followed makes minimal use of general-purpose hardware (BeagleBone Black microcontroller board) and open-source software components (including Linux Operating System with PREEMPT_RT real-time support) for building a reliable real-time control system. The applicability of the proposed control system architecture is validated and evaluated in a real case study in manufacturing. The results provide sufficient evidence of the efficiency and reliability of the proposed approach into the development of a real-time control system based upon COTS components.


2020 ◽  
Vol 17 (1) ◽  
pp. 315-338
Author(s):  
Pascal André ◽  
Christian Attiogbé ◽  
Arnaud Lanoix

Embedded control systems combine digital and physical components, leading to complex interactions and even complexity of their development. In [4] we proposed a method to build such complex systems in a systematic way. The overall method starts from an abstract model of the physical environment of the considered system and its controller. The method consists in a sequence of refinement steps, in the spirit of Event-B, that gradually introduces design details from an abstract level, until more concrete levels. Two main refinement processes are distinguished: one to capture the global model, the other to detail it; we provide through the method the guidelines to accompany these two refinement processes. But there were a lack of assistance tools. The designers need to be assisted by tools to guide them, to automate partially the refinements and to help in proving more easily model properties. We illustrate the method with the landing gear system case study and choosing the Event-B tool Rodin for illustration; we make it explicit the tools requirements for such a general method and, we introduce a tool support to assist the user in applying the method in combination with standard Event-B tool such as Rodin.


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