摘要:
A handheld inkjet printer includes an inkjet print head and a tip. One or more sensors measure the position of points on a curved surface that are physically touched by the tip while the tip is moved relative to the surface. Based on these measurements, a computer generates or modifies a computer model that specifies at least (i) position of the curved surface, and (ii) a target region of the curved surface on which a pattern is to be printed. In addition, the one or more sensors measure position and orientation of nozzles in the print head, while the handset is moved relative to the surface. The computers also calculate, based on the computer model and these additional measurements, which of the nozzles to fire at a different times, such that the pattern is printed on the target region as the handset is moved relative to the surface.
摘要:
A handheld inkjet printer includes an inkjet print head and a tip. One or more sensors measure the position of points on a curved surface that are physically touched by the tip while the tip is moved relative to the surface. Based on these measurements, a computer generates or modifies a computer model that specifies at least (i) position of the curved surface, and (ii) a target region of the curved surface on which a pattern is to be printed. In addition, the one or more sensors measure position and orientation of nozzles in the print head, while the handset is moved relative to the surface. The computers also calculate, based on the computer model and these additional measurements, which of the nozzles to fire at a different times, such that the pattern is printed on the target region as the handset is moved relative to the surface.
摘要:
In exemplary implementations of this invention, finger and hand gestures are tracked using passive RFID tags. The RFID tags include sensors, and/or can accommodate sensor signals from adjacent sensors. An RFID reader is worn by the user. The tags may be housed in rings worn on a user's fingers, or may be located in other locations on a user's body or clothing. The RFID system may transmit in the UHF range. The sensors may include inertial sensors and proximity sensors. For example, the proximity sensors may be magnetic sensors, capacitive sensors, sensors that detect electrical contact, sensors that detect signal strength, sensors that detect detuning of resonant tags, and other sensors that measure distance or contact between two objects.
摘要:
In exemplary embodiments of this invention, one or more I/O devices accept input from a human user. The input is indicative of a value for each control variable in a set of separate control variables. A computer analyzes the input and outputs control signals to specify a set of separate setpoints. Dimmers adjust the intensity or color of a set of luminaires according to the setpoints. The number of separate control variables is much less than the number of separate setpoints. Having a human control a small number of control variables, in order to control a much larger number of separate luminaire setpoints of luminaires, has at least two advantages: control is faster and control is more intuitive. In illustrative implementations, the luminaire setpoints that are being controlled are not functions of each other.
摘要:
In illustrative implementations of this invention, a lighting system comprises a plurality of LEDs, fluorescent lights, incandescent lights, a processor, a sensor node and a human-computer interface. The sensor is adapted to be moved by a user and placed in the location that a user wants to illumine. The LED lights are adapted to emit pulse-width modulated (PWM) light, controlled by signals from the processor. The lighting system is adapted to optimize parameters (such as efficacy or color rendering index) selected by the user, subject to certain constraints (such as desired illuminance or color temperature). According to principles of this invention, if a sensor is moved, attenuation may be measured and the inverse square law may be used to determine how constraints in an optimization algorithm need to be updated.
摘要:
In exemplary implementations of this invention, control apparatus for a HVAC system provides personalized comfort control. It can adjust local conditions in different rooms within a building in order to maximize the perceived comfort of individual occupants. The control apparatus locates individuals within a building. For each individual, it senses temperature, humidity and other parameters at the individual's location, calculates a comfort metric indicative of the user's comfort, and can control the flow of chilled or heated air to the individual's location in order to adjust local conditions to maximize the individual's comfort.
摘要:
A wireless switch is provided having a twenty-year life energy harvesting arrangement for self-powering a wireless transmitter. The energy harvesting arrangement is implemented in one embodiment using a piezoelectric switch element. A tritium light source and photovoltaic device are used in a second embodiment, while a black light source and photovoltaic device are used in a third embodiment. The energy harvesting wireless switch arrangement of the present invention can be combined, for example, with a vehicle side mirror switch, to reduce the complexity of the wire harness feeding the door. The wireless switch can be located without regard to accessability of a wiring harness or connector.
摘要:
Apparatus for continuous sensing of hand and arm gestures comprises hand-held means for continuously sensing at least tempo and emphasis. These sensed parameters are represented quantitatively, and transduced by appropriate circuitry into electrical signals indicative of the parameter quantities. The signals may be used to control the performance of a musical composition (or the evolution of some other dynamic system), or may instead convey information. The signals may, for example, be provided to an interpreter that dynamically infers control commands from the gestures on a real-time basis in accordance with the generally accepted canon of musical conducting, directing the controlled system in accordance therewith. The invention may also sense one or more additional conducting parameters such as the speed and/or velocity, direction (i.e., trajectory) in three dimensions, absolute three-dimensional position, the "size" of a gesture in terms of the spatial distance between successive beats, and the "placement" of a beat pattern in space.
摘要:
A multimodal sensor network node is integrated into a power strip. A sensor platform comprises a power outlet, typically in the form of a power strip, at least one environmental sensor integrated into the power strip, and at least one transceiver for communicating data measured by the sensor. A sensor network is made up of a group of sensor platforms. The platforms may include a controller for directing measurement and communication of data by the sensors, and may communicate through wireless or wired communication. The device has access to power through its line cord, can control and measure the current profile consumed by devices plugged into its outlets and control the voltage at each outlet independently, supports an ensemble of sensors, and can connect to other devices. Typically, microphone, light, temperature, and vibration sensors are intrinsically built into the device, while other sensor types can be added easily.
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.