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Fleet monitoring of commercial vehicles has received a major attention in the last period. A good monitoring solution increases the fleet efficiency by reducing the transportation durations, by optimizing the planned routes and by providing determinism at the intermediate and final destinations. This paper presents a fleet monitoring system for commercial vehicles using the Internet as data infrastructure...
Several protocols exist in serial communications, such as SPI, USB, RS232, RS485, CAN etc. In order to obtain flexible and fast communication, serial communication nodes were developed. They are generally based on microcontrollers and can be seen as protocol converters. Their capabilities were enriched by adding the remote command possibility, through an Ethernet interface. This paper presents a serial...
Autonomous navigation is an important problem in mobile robotics. Various solutions have been proposed part of them being sensor based. The use of the sensors offers flexibility and adaptability to the robot but has also disadvantages: it may need powerful processing units, mounted on the robot and it is difficult to represent correctly and in all details the environment and the position of the robot...
An important domain of the computer science is considered the so called ubiquitous and pervasive computing. One of its main application domains, with growing importance, is the monitoring of the human body. It has a strong impact in different areas, such as medicine, transports and sports. In sports, the monitoring of the physiological parameters is important for obtaining performance but also for...
Various solutions have been proposed for controlling the motion of mobile robots. They are generally classified into two categories: global or explicit planning and local or implicit planning. The local solutions are mainly used in unknown environments and are completely based on information provided by sensors. This paper presents a solution for controlling the motion of a mobile robot through sensors...
The monitoring and regulating of the temperature in indoor locations are components of the intelligent climate control which is useful in more and more buildings. Embedded systems are used for implementing such systems. The main target is to obtain desired temperatures in different rooms, optimizing the whole energy consume. The paper describes a system for monitoring and regulating the temperature...
Mobile robots are a very dynamic part of the robotics domain. Their navigation requires solutions for: establishment of the current position, motion planning and avoidance of obstacles. The paper describes a solution for mobile robot navigation with obstacle avoidance capability based on the X80 robot from Dr. Robot. The map and the trajectory are computed on a PC which will wirelessly control the...
Important advances have been made in the last period in the robotic domain. Mobile robots are in an accentuated development. The navigation of the mobile robots requires solutions for the following problems: the establishment of the current position, the motion planning and the avoidance of obstacles. This paper approaches the problem of indoor navigation of a wheeled mobile robot. The X80 robot from...
Any electronic measurements laboratory needs signal generators capable to generate several types of signals with different shapes, frequencies and amplitudes. Such a devices has many capabilities but, also, high price. The alternatives are virtual and/or PC based instrumentation. This paper describes a programmable signal generator implemented with the PWM method on the advanced 32 bit Tricore microcontroller...
In our days microcontrollers are widely used in more and more domains. One of the most important application fields is the automotive one. Because of the great number of microcontrollers included in an automobile and the complexity of tasks they must execute real time operating systems must be implemented. The implementation of the OSEK/VDX operating system on the ADuC703x microcontrollers is described...
In the last period a dynamic and accentuated development of the embedded systems takes place. More and more embedded systems can be found. The connection of the embedded systems in networks became a necessity. The connection can be with or without physical wires. The ad-hoc networks are a special category of wireless networks. In their classical form they do not have an infrastructure, all the nodes...
A smart sensor is the convergence of the sensing features of a sensor with the intelligence and decision features of a microcontroller or DSP based microsystem. The communication feature of a smart sensor is compulsory. It must communicate vertically and horizontally too. The vertically communication is down with the process it senses and up with a processing and decision system. The horizontally...
More and more microcontrollers are embedded in a large area of products from industrial to domestic domains. A good example is the automobile, a modern one containing tens of microcontrollers. As their number increased the communication between them became necessary. The serial solution was preferred and a lot of serial buses and protocols were developed optimizing different parameters of the communication...
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