摘要:
Low-cost techniques for sensing ambient temperatures in a container or package using phase change materials are provided. In one aspect, a temperature sensor is provided. The temperature sensor includes: at least one phase change material configured to transition from an amorphous state to a crystalline state upon exposure to temperatures above a predetermined threshold temperature for a given duration. A method of monitoring temperature exposure of a consumer good using the temperature sensor is also provided.
摘要:
A thermal behavior model of a building may be constructed based on time series data. Based on the constructed thermal behavior model, forecasted zone temperature and energy usage for a next control time period may be predicted. An objective function may be constructed based on at least a dynamically priced grid energy cost, occupant comfort matrix, and one or more of: energy storage system cost and associated operational cost, and energy generation system cost and associated green house emission cost and associated operational cost. Constraints may be constructed based on at least the forecasted zone temperature values and energy usage values for the next control time period. A control profile of the HVAC system and sourcing decision of energy load of the HVAC system may be determined simultaneously based on the objective function and the plurality of constraints.
摘要:
A method of protecting content displayed on a mobile device screen is provided. The mobile device screen may receive both sensitive and non-sensitive content. An image of one or more authorized users viewing the mobile device screen is detected, whereby, based on the detected image of the one or more authorized users, the received content is generated on the mobile device screen using a plurality of pixels. The plurality of pixels have both first sub-pixel units that include a first viewing angle and second sub-pixel units that include a second viewing angle. The first sub-pixel units generate an image of the non-sensitive content on the mobile device screen at the first viewing angle and the second sub-pixel units generate an image of the sensitive content at the second viewing angle, such that, the second viewing angle is smaller relative to the first viewing angle for obscuring the sensitive content.
摘要:
A system for protecting content includes a mobile device screen including a plurality of pixels, whereby each of the plurality of pixels have first sub-pixel units that include a first viewing angle and second sub-pixel units that include a second viewing angle. Within each of the plurality of pixels, the first sub-pixel units are adjacent to the second sub-pixel units. A processing unit is coupled to the mobile device screen and determines a portion of the mobile device screen that displays sensitive content. The processing unit obscures the sensitive content displayed on the portion of the mobile device screen by deactivating the first sub-pixel units at the portion of the mobile device screen that displays the sensitive content and activates the second sub-pixel units at the portion of the mobile device screen that displays the sensitive content.
摘要:
Generating a heat transfer model for building energy may comprise developing a PDE model that describes heat transfer through building envelope of a building, and developing an ODE model that describes the heat transfer and thermal balance in a space inside the building. Stepwise parameter estimation integrates the PDE model and the ODE model in generating the heat transfer model.
摘要:
Generating a heat transfer model for building energy may comprise developing a PDE model that describes heat transfer through building envelope of a building, and developing an ODE model that describes the heat transfer and thermal balance in a space inside the building. Stepwise parameter estimation integrates the PDE model and the ODE model in generating the heat transfer model.
摘要:
Low-cost techniques for sensing ambient temperatures in a container or package using phase change materials are provided. In one aspect, a temperature sensor is provided. The temperature sensor includes: at least one phase change material configured to transition from an amorphous state to a crystalline state upon exposure to temperatures above a predetermined threshold temperature for a given duration. A method of monitoring temperature exposure of a consumer good using the temperature sensor is also provided.
摘要:
Methods and systems for cleaning an optic include cleaning an optic with ultrasonic vibrations. The locations of nodes in a standing wave of the ultrasonic vibrations are changed by changing a frequency of vibration during cleaning.
摘要:
An illustrative embodiment includes a method for analyzing unstructured multidimensional data with a neural network. The method includes designing the neural network at least in part by defining differential operators conforming with dimensions of the data. The method also includes performing forward propagation at a given convolution layer of the neural network at least in part by: obtaining one or more convolved values at least in part by performing convolution over an object within the data, processing respective convolved values to obtain output, and updating the object based at least in part on the output.
摘要:
Techniques for automatically eradicating microorganisms (e.g., germs, bacteria, and/or viruses) from appliance handles using ultraviolet (UV) light are provided. In one aspect, a system for eradicating biological contaminants from a handle on an appliance door is provided. The system includes a UV light emitter for producing UV disinfecting light during a cleaning cycle; and a waveguide coating on the handle, coupled to the UV light emitter, for propagating the UV disinfecting light over a surface of the handle. The system can also include a control module for controlling the UV light emitter; and at least one sensor for providing data to the control module as to when to initiate or halt a cleaning cycle. A method for eradicating biological contaminants from a handle on an appliance door using the present system is also provided.