摘要:
A wireless, in-road traffic sensor system using sensors that are small, low-cost, and rugged. The sensors may be capable of measuring the speed of passing vehicles, identifying the type of passing vehicle and measuring information about roadway conditions, e.g., wet or icy. The sensor includes a wireless transmitter and may be configured for installation beneath a roadway surface. The sensors may be configured as a traffic sensor system including distributed sensors across a roadway system, concentrators for receiving the sensor broadcasts and a central computer for accumulating and organizing the sensed information. The sensed information may also be made available responsive to user requests via the Web through such reports as traffic delays, alternate route planning and travel time estimates. Alternatively, the sensed information may also be used to control traffic through a traffic control means, such as a traffic signal.
摘要:
Methods, apparatuses, and computer program products are herein provided for enabling use of external devices with pre-defined gestures. A method may include receiving operation information from a remote device, wherein the operation information indicates at least one operation that may be invoked by the remote device. The method may further include associating, by a processor, at least one pre-defined gesture with the at least one operation. The method may further include receiving user input. The method may further include determining that the user input corresponds to the at least one pre-defined gesture. The method may further include causing transmission of indication information to the remote device, wherein the indication information provides an indication to the remote device to perform the at least one operation associated with the pre-defined gesture. Corresponding apparatuses and computer program products are also provided.
摘要:
Surface impacts are located and characterized based on an acoustic signal produced by the impact despite the presence of signal dispersion. Acoustic signals from the surface may be compared to acoustic signals detected external to the surface in order to eliminate spurious impact sensing due to external sounds. Low-frequency acoustic signals may be sensed and identified as explicit hard “bangs” which are of limited utility for pointing and tracking applications.
摘要:
Methods, apparatuses, and computer program products are herein provided for enabling use of external devices with pre-defined gestures. A method may include receiving operation information from a remote device, wherein the operation information indicates at least one operation that may be invoked by the remote device. The method may further include associating, by a processor, at least one pre-defined gesture with the at least one operation. The method may further include receiving user input. The method may further include determining that the user input corresponds to the at least one pre-defined gesture. The method may further include causing transmission of indication information to the remote device, wherein the indication information provides an indication to the remote device to perform the at least one operation associated with the pre-defined gesture. Corresponding apparatuses and computer program products are also provided.
摘要:
A conversation shielding system comprises sensors that detect the location of a confidential conversation and the presence and location of a potential eavesdropper, audio output devices that produce masking sounds to shield the conversation from the eavesdropper, and a controller that automatically controls the operation of the output devices in response to data from the sensors. An optional portable controller may manually engage the system. A method for shielding conversation comprises identifying a conversation to be shielded, detecting a potential eavesdropper, automatically determining masking sound types, locations and volume that will shield the conversation, directing emission of masking sounds from at least one audio output device in order to shield the conversation, including adjusting the masking sound type, location, and volume in response to movement of the conversation or the eavesdropper, and continuing to shield the conversation until it ends or the eavesdropper is no longer detected.
摘要:
A preferred reader circuit for energizing the coils and detecting loading variations is shown in FIGS. 3A and 3B. It was designed for tabletop operation at relatively low frequencies; the amplitudes, frequencies, and time constraints listed below can be shifted as desired for other applications. The depicted schematic includes driver circuitry for three coils, it being understood that further drivers can be added as indicated in the figure. Each driver circuit includes an inductive bridge wherein a search coil 3051, 3052, 3053 is balanced against a series of reference inductors 3071, 3072, 3073; 3091, 3092, 3093; and 3311, 3112, 3113 (the latter being variable to trim residuals in the search coil's inductance). A representative pair of search coils 3051, 3052 are identically wound and driven together, and the sensing volume between them is once again indicated at 200. Coil 3053 may be one of another coil pair, or may instead be a non-aligned search coil used to resolve orientation-related ambiguities with respect to coils 3051, 3052.
摘要:
A conversation shielding system comprises sensors that detect the location of a confidential conversation and the presence and location of a potential eavesdropper, audio output devices that produce masking sounds to shield the conversation from the eavesdropper, and a controller that automatically controls the operation of the output devices in response to data from the sensors. An optional portable controller may manually engage the system. A method for shielding conversation comprises identifying a conversation to be shielded, detecting a potential eavesdropper, automatically determining masking sound types, locations and volume that will shield the conversation, directing emission of masking sounds from at least one audio output device in order to shield the conversation, including adjusting the masking sound type, location, and volume in response to movement of the conversation or the eavesdropper, and continuing to shield the conversation until it ends or the eavesdropper is no longer detected.
摘要:
A distributed sensor networks employing mobile sensing nodes that are carried to desired locations by attaching themselves to moving hosts and detaching themselves when the host arrives at the desired location or is moving away from the desired location. Each sensing node may carry a plurality of environmental sensors and communicates with nearby sensing nodes using a short range wireless link. The node further carries a location sensing mechanism and uses either active, passive or attractive means to attach itself to a moving host.
摘要:
A system for introspection and annotation of electronic design data includes a tracked probe that interacts with an electronic circuit, a tracking system, schematics, design files, or models for the circuit, electronic design system software, and a user interface. The probe has a sensor that tracks the position of the probe within the circuit. The tracking system receives data from the sensor and translates it into coordinates reflecting the location of the probe within the circuit. The software uses the probe coordinates to locate the position of the probe on the circuit schematic, identify the circuit component at the probe location, and display information about the identified component. The displayed information preferably includes an annotated version of the circuit schematic. The system may include a measurement or instrumentation device, the probe may include at least one parameter measurement device, and the display may include information derived from the parameter measurements.
摘要:
Surface impacts are located and characterized based on an acoustic signal produced by the impact despite the presence of signal dispersion. Acoustic signals from the surface may be compared to acoustic signals detected external to the surface in order to eliminate spurious impact sensing due to external sounds. Low-frequency acoustic signals may be sensed and identified as explicit hard “bangs” which are of limited utility for pointing and tracking applications.