Papers by Keyword: Embedded Controller

Abstract: Recently, the tufted carpet pattern are getting more and more complex. However jacquard machine equipment is relatively backward and it has low degree of automation, which has caused a lot of labor and low efficiency. To solve these problems, the pattern forming principle of the tufting jacquard machine was studied and the design of automatic control system was put forward. So an embedded electronic jacquard machine controller based on ARM7 was developed.

Abstract: This paper presents a mechatronic development of a new mobile robot platform for autonomous on-the-road navigation. It uses sensor fusion involving the camera, laser range finder (LRF) and odometry to guide and find the free collision path during navigation. The embedded controller system has been deliberately developed to integrate the mechanical parts with the electronics and software algorithms. Microsoft Visual C# and MATLAB are linked together to perform the road recognition calculation via the proposed algorithms. The main processing program in C# is later extended to MATLAB environment for image, signal processing and calculation based on data from the LRF and camera. The linking between C# and MATLAB is done using COM automation server and the data in the client C# program passes it to MATLAB and vice versa.

Abstract: This paper presents an embedded controller of low cost and high performance for industrial robot. The ARM microprocessor is chosen as the main controller for the processor. Based on the 7-segment cubic spline interpolation algorithm, a real-time control for the robot is implemented. This proposed trajectory method can perfectly generates speed S-curve shape for a start-stop process of the robot. In this article a programming language, G-code, is developped for the robots motion control by using the editing interface we designed specially on PC platform. With all the features for 2-4 degree of freedom robot application, the editing interface has been developed for editing and compiling G-code, which can be downloaded into the microprocessor with the custom communication protocol through communication interface. The programming method of the G-code language is easy to learn and use for the non-professional users. The paper describes the design and implementation in detail for the controller, which was validated on our designed SCARA robot, and it worked reliably.

Abstract: The existing laser marking control systems are mainly based on PC and PCI laser drivers. PC is used for editing marking information and extracting marking data. The rapid processing capacity of PC makes the laser making machine achieve faster processing speed. However, it cannot be used in the outdoors and bad situations. In older to make the laser marking system widely adapt to various environments, an embedded laser marking controller is developed. It is based on ARM9 and LINUX. It can be easily operated and can achieve wonderful marking.

Abstract: Recently, power assisted nursing care systems have received much attention and those researches have been done actively. In such a control system, an actuator and a control valve are mounted on the human body. Designing the system, the size and weight of the valve become serious concerns. The purpose of our study is to develop a small-sized, lightweight and low-cost servo valve for precise control using wearable pneumatic actuators. In this study, a low-cost wearable servo valve that can control the output flow rate by changing the twisted angle of the buckled tube in the servo valve is proposed and tested. The position control system of McKibben rubber artificial muscle using tested valve and embedded controller is also proposed and tested. As a result, we confirmed that the tested servo valve can control the flow rate in both supply and exhaust in an analog way. In addition, the estimated cost of the proposed valve can be reduced about 100 times cheaper (10 US Dollar) compared with the typical servo valve.

Abstract: A chaos concise differential evolution algorithm (CcDE) is proposed for the embedded controller with limited memory, which introduces chaotic local search based on basic differential evolution algorithm to increase exploring and prevent premature convergence. Using virtual population and Gaussian sampling, the CcDE becomes simple and reduces the memory requirements at run time. Experimental simulation on optimizing parameters of the recurrent fuzzy neural network shows that the proposed CcDE can obtain better performance than other concise algorithm.

Abstract: Aimed at the disadvantages of real test method for micro system, a simulation environment for dangerous chemicals transportation is developed. This simulation environment is based on the motion simulation platform, which is a kind of Hexaglide operation platform and has a total of 8 dof. With the motion simulation platform and the simulation environment, the motion parameters such as attitude, angular rate, velocity and acceleration and the environment parameters such as temperature, humidity, concentration of combustible gas, the inner pressure and liquid level of tank are measured by micro system and standard sensors simultaneously. With the comparison of test data, the micro system can be validated. In this paper, the structure of motion simulation platform is presented; the hardware structure and integration are described respectively; the software of simulation environment is introduced and some experiment results are shown.

Abstract: The functions and the characteristics of RS-485 bus, I-7188 embedded controller, and SK2001 intellectual weighting controller are introduced briefly in this paper. The communication protocol of weighing controller, design of system hardware and software, and implementation of communication function are also analyzed in detail here. The serial communication between I-7188 and multiple weighing controllers has been implemented by using RS-485. As a result, the centralized control of the distributed equipments, the acquisition and automation upload of the metering data have been accomplished. The results of practical application show that this system has the characteristic of high stability and tolerance; it is easy to be managed and expanded as well.

Abstract: Presented in this paper are a prototype design for a cable-suspended robot mechanism with two dimensions of free movement, a position feedback strategy, and an embedded control system. In addition, a novel positioning metrology is also proposed such that the Jacobian Matrix can be formed directly through measurement, which contributes greatly to the robot path planning. This cable-suspended robot can be applied to firefighting in high-rise buildings as a novel approach to providing rescue capabilities beyond those of traditional aerial ladders.

Abstract: Combining with the current development trend of vehicle suspension and damper technology, different standards of MR dampers are respectively developed in this paper in order to solve problems the semi-active suspend engineering application brings, where its structure design of a certain type of MR damper is detailedly analyzed from the point of engineering view. In order to speed up the progress of MR damper development, based on 1/4 suspend hardware-in-the-loop tester, the integrated developing platform for MR damper with embedded controller is designed and developed, in which some key parts are included, such as assistant algorithm of structure design, exploitation tool of speediness testing, communication interface of CAN bus. The integrated developing platform for MR damper with embedded controller is the same with MR product’s exploitation flow. Finally, its hardware and software design of the measuring-controlling unit for MR damper with embedded controller, are introduced, and some test results are also show and analyzed. Experimental results prove that the developed MR damper with embedded controller would have a widely application prospect.