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A 1/2.3-inch 10.3Mpixel 50 frame/s CMOS image sensor fabricated using a 0.13 ??m 1P4M CMOS process with back-illumination technology achieves sensitivity of 9890e/luxs, random noise of 1.7e and saturation of 8850e. The sensor integrates a 10b/12b analog-to-digital converter, an internal PLL and a 10b serial LVDS interface to enable a data-rate up to 576 MHz.
PID (proportional integral derivative) control is a feedback mechanism widely used in industrial control systems, and publisher/subscriber is an asynchronous one-to-many messaging mechanism commonly used in fieldbus protocols. Some fieldbus protocols are extended with IP/Ethernet, and publisher/subscriber messages are mapped to IP multicasts when extending these protocols. Some such protocols map...
One problem with the cross-realm operation of Kerberos 5 is that clients need to traverse the authentication paths between realms. Traversal is a burden for clients with limited resources. In this paper, the authors constructed a cross-realm framework, called the client-friendly cross-realm framework, which releases clients from traversal of realms. This framework enables a client to obtain a service...
Mapping and localization play important roles for autonomous mobile robots. Since most of the conventional mapping methods assume static environment, the obtained map lacks reliability of localization when the assumption does not hold in the real environment. Additionally, when a robot wants to do some tasks (such as, open doors, push cabinets, etc.) during SLAM process, the robot need localize the...
In this paper, we propose a hierarchical approach to solving sensor planning for the global localization of a mobile robot. Our system consists of two subsystems: a lower layer and a higher layer. The lower layer uses a particle filter to evaluate the posterior probability of the localization. When the particles converge into clusters, the higher layer starts particle clustering and sensor planning...
A PA (Process Automation) system is a kind of control systems which have been used in various non-IP (Internet Protocol) network areas. The system is now introducing IP with advantages, and will face the issues of security and configuration complexity due to upcoming new requirements. The authors have proposed a model called Secure Plug and Play which intends to solve these issues while satisfying...
There are many kinds of control networks based on non-IP, such as BA (building automation), FA (factory automation) and PA (process automation). The IPv6 and wireless technologies are expected to improve those networks. The IEEE 802.15.4 is a candidate for wireless technology in control networks because of its feature, e.g. low power consumption and small implementation. Seamless communication between...
There are many kinds of control networks, which have been used in various non-IP network areas, such as BA (building automation), FA (factory automation) and PA (process automation). They are introducing IP and face the issues of security and configuration complexity. The authors have proposed a model which intends to solve the issues while satisfying restrictions, i.e. small embedded devices, isolated...
In this paper we propose a hierarchical approach to solve sensor planning for global localization of a mobile robot. The higher layer uses a Bayesian network which represents the contextual relation between the geometrical features of local environment, the robot sensing actions and the global localization beliefs. In the higher layer, the system allows sensor planning by taking into account the trade-off...
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