Sensing for robotic applications has been a very active field of research in recent years, leading to the development of ever more effective and complex devices [1-3]. This has been particularly true of tactile sensor...
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ISBN:
(纸本)0852965095
Sensing for robotic applications has been a very active field of research in recent years, leading to the development of ever more effective and complex devices [1-3]. This has been particularly true of tactile sensors, where attempts have been made to improve a number of detector performance characteristics, such as dynamic range, linearity hysteresis, sensitivity and resolution. This work shows how dynamic sensing, using very simple sensors, can give details on the nature of an object that at present can only be found using complex and expensive systems. Initially a study will be conducted to determine the relative sensing abilities of robotic sensors, ranging from simple, but robust and reliable micro-switches, to the advanced tactile arrays. This will be analyzed in terms of their data gathering capacity, and using this information it is possible to make a comparison of the capabilities of 'static' and 'dynamic' sensing systems. Subsequently based on these predictions the performance of a 'dynamic' sensor will be tested and analyzed.
Recent progress in the millimeter-wave field will be summarized. In the technology area there are significant developments in HEMT solid-state oscillators and in passive component development. In the past several year...
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ISBN:
(纸本)0946821429
Recent progress in the millimeter-wave field will be summarized. In the technology area there are significant developments in HEMT solid-state oscillators and in passive component development. In the past several years there have been major investigations of atmospheric effects (scintillation and angle-of-arrival, backscattering from snow or rain, and other phenomena). These results have been collected in a special journal issue. In the subsystem area there also have been several new developments for use in radar and communications. In general, systemsapplications are occurring in satellite or air-to-air communications, missile/projectile terminal guidance, airborne synthetic aperture radar, and satellite or airborne radiometric imaging (remote sensing) and radio astronomy. Some major programs will be described, including the EHF MILSTAR satellite communications project, the Multiple Launch Rocket System (MLRS) terminal seeker, the Sense and Destroy Armor (SADARM) sensor-fused munitions, the Lincoln Laboratory synthetic aperture radar, the Longbow tactical missile system, the millimeter wave Maverick missile seeker, the Special sensor Microwave/Imager (SSM/I) satellite radiometers, and the airborne advanced Microwave Precipitation Radiometer (AMPR).
We present a new model for the perceptual reasoning involved in hand/eye coordination, and we show how this model can be developed into a control mechanism for a robot manipulator with a visual sensor. This new approa...
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The author examines the strategic, economic, and technological considerations for silicon sensors for automotive applications. The view toward the 1990s as the decade of increased silicon sensors for automotive applic...
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The author examines the strategic, economic, and technological considerations for silicon sensors for automotive applications. The view toward the 1990s as the decade of increased silicon sensors for automotive applications is examined in light of the economic and technological tradeoffs. It is pointed out that silicon sensors have demonstrated their value as Hall effect and pressure sensors for more than ten years and several hundred applications. The pressure sensor opportunities are continuing to grow and provide a technological base for growth in silicon accelerometers.< >
Addresses the operating principles applicable to integrated avionics processors. The techniques described have been successfully applied in avionics programs within an integrated standard electronic modules format E (...
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Addresses the operating principles applicable to integrated avionics processors. The techniques described have been successfully applied in avionics programs within an integrated standard electronic modules format E (SEM E) heterogeneous multiple processor system. Analysis of avionics applications is blended with ease-of-use, programmability and systems considerations to derive the system principles. applications scheduling, initialization, termination and resource management techniques are considered.< >
The characteristics and the applications of the articulated body mobile robot, 'Koryu (KR)', a mobile robot with a new style of articulated body is identified, and the construction of the newly developed '...
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The characteristics and the applications of the articulated body mobile robot, 'Koryu (KR)', a mobile robot with a new style of articulated body is identified, and the construction of the newly developed 'Koryu-II (KR-II)' is discussed. KR-II takes the form of seven linked articulations and its total length is 3.3 m, and its total weight is 350 kg. KR-II introduces new mechanisms and control systems such as: easily detachable unified segments; self-contained driving system with wireless control; traction wheels attached on one side of the segment; long stroke vertical prismatic joint to cope with a steep inclination; robot hand driven by the coordination control of the body articulation; force sensor based on photodetective technology; and an analog bus system to simplify the electrical installation. Finally, the paper describes KR-II's fundamental results of experimental trials, to show the validity of it as a robot to move and operate in an unstructured environment.< >
The goal of the paper is to outline a multiagent robotic system employed in the task of material handling in an unstructured, indoor environment. In the research described, manipulators, observers, vehicles, sensors, ...
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The goal of the paper is to outline a multiagent robotic system employed in the task of material handling in an unstructured, indoor environment. In the research described, manipulators, observers, vehicles, sensors, and human operators are considered to be agents. Alternatively, an agent can be a general-purpose agent. Mobility is considered to be essential-if an agent is not mobile, it must be possible for it to 'piggy-back' on another agent which is mobile. In addition there is a central station which is stocked with a variety of additional sensors, means of illumination, special effectors or tools, that the agents can employ depending on the environment, task and the outcome of the execution of the task. Some possible applications of such a material handling system and examples of the tasks and environments are outlined.< >
Any time there is a need to physically interact with the external world in an unstructured environment, a robotic system must be able to extract physical, geometrical, and substance properties of that environment. The...
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Any time there is a need to physically interact with the external world in an unstructured environment, a robotic system must be able to extract physical, geometrical, and substance properties of that environment. The authors use, and further define, the paradigm of exploratory procedures (EP's). The EP's are stereotypical motoric procedures executed by humans when exploring an object. They adapt these for use in the robotics domain. Among the many EP's, they concentrate on one specific case: the EP that returns the thermal property of an unknown object. They present a new approach for the design and modeling of thermal sensors for robotic applications. A model of one such sensor is developed and its validity is experimentally verified with different objects. Finally, an EP for acquiring the temperature property of an unknown object is described.< >
Trends concerning real-time, high-quality airborne 3D computer image generation systems and flat panel displays are reviewed. It is pointed out that the rapid trend toward the use of full-color display devices and ras...
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Trends concerning real-time, high-quality airborne 3D computer image generation systems and flat panel displays are reviewed. It is pointed out that the rapid trend toward the use of full-color display devices and raster graphics image generation systems in the cockpit is in part due to advances in sensors, programmable graphics generators, and electrooptics. Although many newer display and control system technologies have yet to reach maturity for flight applications, the rate of improvement in recent years suggests many new technologies will overcome the present shortcomings during the 1995-2000 time frame. High-performance graphics engines, powerful floating point processors, and massively parallel graphics architectures will be used to increase the rendering speed, functionality, and reliability, while reducing power, space requirements, and cost of cockpit display processors. Flat panel displays will replace dedicated instruments and traditional cathode ray tubes in the cockpit and enhance maintainability, reliability, and crew-system performance.< >
Recent progress in the millimeter-wave field will be summarized. In the technology area there are significant developments in HEMT solid-state oscillators and in passive component development. In the past several year...
详细信息
Recent progress in the millimeter-wave field will be summarized. In the technology area there are significant developments in HEMT solid-state oscillators and in passive component development. In the past several years there have been major investigations of atmospheric effects (scintillation and angle-of-arrival, backscattering from snow or rain, and other phenomena). These results have been collected in a special journal issue. In the subsystem area there also have been several new developments for use in radar and communications. In general, systemsapplications are occurring in satellite or air-to-air communications, missile/projectile terminal guidance, airborne synthetic aperture radar, and satellite or airborne radiometric imaging (remote sensing) and radio astronomy. Some major programs will be described, including the EHF MILSTAR satellite communications project, the Multiple Launch Rocket System (MLRS) terminal seeker, the Sense and Destroy Armor (SADARM) sensor-fused munitions, the Lincoln Laboratory synthetic aperture radar, the Longbow tactical missile system, the millimeter wave Maverick missile seeker, the Special sensor Microwave/Imager (SSM/I) satellite radiometers, and the airborne advanced Microwave Precipitation Radiometer (AMPR).
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