摘要:
Various implementations provide for a task as the method that describes a spatial computing application by providing an abstract task graph (ATaG) wherein the abstract task graph specifies the behavior of the application without reference to the number, placement and connectivity of the nodes performing the application and the tasks are automatically mapped to the network. The ATaG specifies a set of tasks, a set of data objects and a set channels, including various constraints and preferences on where in the network tasks may be performed, how data is moved between locations and the data required at various locations. Moreover, various implementations provide for a task assignment system which maps the abstract tasks and channels to specific nodes and communication links, either at the time of the construction of the system or throughout the time of its operation.
摘要:
One embodiment of the present invention provides a system for navigating through information associated with physical objects or locations. During operation, the system detects a multi-resolution visual code placed on or in the vicinity of a physical object or location. The system then determines a level of resolution for the detected code, and decodes the code at the determined level of resolution to obtain the information. Subsequently, the system presents the information to a user, thereby allowing the user to navigate through information associated with the physical object or location.
摘要:
A system and method for guiding robotic actions based on external factor tracking and analysis is presented. External factors affecting a defined physical space are tracked through a stationary environmental sensor. The external factors are analyzed to determine one or more of activity levels and usage patterns occurring within the defined physical space. At least one of movements and actions to be performed by a mobile effector that operates untethered from the stationary environmental sensor within the defined physical space are determined. The movements and actions are autonomously executed in the defined physical space through the mobile effector.
摘要:
A method and system of distributed illumination and sensing, the system including devices, each device including an emitter to emit at least one of light and sound, a sensor to receive an indirect emission, and a controller to determine the existence and/or relative location of at least one of the other devices in response to the indirect emission.
摘要:
A stretchable interconnect for electrically connecting electronic devices comprises a photolithographically patterned conductor extending between two of said devices for electrically coupling a contact of one device to a contact of another device. The stretchable interconnect preferably comprises a coiled conductor. The coiled conductor is formed of a metal or alloy having a stress gradient extending through a thickness of said conductor. A sensor array employs the stretchable interconnects to connect contacts of one electronic device to another electronic device. The sensor array can be employed in a flexible or stretchable sensing skin of a robot as well as other applications. The stretchable interconnects can be formed by a photolithographic process on the same substrate which supports the electronic devices. The interconnects become stretchable when the supporting substrate is removed from the interconnect. Preferably coils which are formed are di-helic.
摘要:
One embodiment of the present invention provides a system that uses a visual tag to determine an angle. During operation, the system observes the visual tag from an observation point, wherein the visual tag includes an angle-sensitive image which changes in appearance when observed from different angles. Next, the system uses the appearance of the angle-sensitive image (as observed from the observation point) to determine the angle between the visual tag and the observation point. In a variation on this embodiment, the system uses the determined angle along with supplemental information to determine the physical location of the observation point.
摘要:
This disclosure introduces a system which generates a visual, audio, and/or tactile warning to a driver of a lead vehicle when a possible rear-end collision is detected, based on the approach of a second vehicle from a rear direction. The system may also generate a warning signal (such as quick blinking red brake light, or an array of multi-color lights) directed to the approaching vehicle when it is determined to be approaching at an unsafe speed. The system may include one or more of: approaching-vehicle-sensors mounted on the back end of the lead vehicle, a computer processing system, a set of warning lights, a set of speakers within the lead vehicle, and an antenna and transmitter/receiver for communicating with systems of other vehicles. This system may include a connection to the existing taillight system and other existing systems in the lead vehicle. Extended systems may include connections to and control of head support system, seat-belt systems and airbags system to provide additional safety to the occupants of the lead vehicle. The system may also record and store a few seconds of sensor data of the pre-crash and crash related scene when an impact occurs, and provide blind spot warnings.
摘要:
One embodiment of the present invention provides a process for producing a low-visibility retroreflective visual tag, which can be used to identify and/or determine the position of an object. This process involves placing an infra-red-blocking material over a retroreflective substrate to form the low-visibility retroreflective visual tag. This infra-red-blocking material is placed so as to form a pattern, which becomes visible to an infrared sensor when the low-visibility retroreflective visual tag is illuminated by an infra-red light source.
摘要:
In a distributed sensor network, one or more devices, for example, forming a collaborative group, are associated with a physical phenomenon based on geographical proximity. The sensor network is capable of detecting new phenomena and changing the membership of the collaborative group as the phenomenon changes. Sensors not associated with a detected phenomenon are available to detect new phenomenon, and one group may exist per phenomenon. Upon detection of a phenomenon, a group of nodes is formed and a leader node is elected. As the phenomenon changes over time, new devices come into proximity of the phenomenon and are prevented from forming independent groups associated with the phenomenon. This accomplished in a decentralized way with communication restricted to local neighbors. In a tracking sensor network using a relatively small number of sensors, the sensors are active and maintain a coherent belief associating their measurements with a single common vehicle.