Time-delay systems: an overview of some recent advances and open problems

Proximity based systems and methods that are implemented on an electronic device are disclosed. The method includes sensing an object spaced away and in close proximity to the electronic device. The method also includes performing an action in the electronic device when an object is sensed.

Proximity detector in handheld device

Methods and systems are provided for optimizing the control of energy supply and demand. An energy control unit includes one or more algorithms for scheduling the control of energy consumption devices on the basis of variables relating to forecast energy supply and demand. Devices for which energy consumption can be scheduled or deferred are activated during periods of cheapest energy usage. Battery storage and alternative energy sources (e.g., photovoltaic cells) are activated to sell energy to the power grid during periods that are determined to correspond to favorable cost conditions.

Optimized energy management system

Observer-based adaptive sliding mode control for nonlinear Markovian jump systems

A monitoring system for a heating, ventilation, and air conditioning (HVAC) system of a building includes a monitoring device installed at the building, a monitoring server located remotely from the building, and a review server. The monitoring device measures an aggregate current supplied to components of the HVAC system and transmits current data based on the measured aggregate current. The monitoring server receives the transmitted current data and, based on the received current data, assesses whether failures have occurred in first and second components of the HVAC components. The monitoring server generates a first advisory in response to determining that the failure has occurred in the first component. The review server provides the first advisory to a technician for review and, in response to the technician verifying that the failure has occurred, transmits a first alert.

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Hvac system remote monitoring and diagnosis

Technical Communique: Robust stabilization of uncertain input-delay systems by sliding mode control with delay compensation

A system and method for controlling a refrigerator capable of transmitting and receiving information over an external communication network. A display unit is installed on the front surface of the refrigerator, and a touch panel is connected to the display unit to input a variety of user commands. A schedule management function, a self-diagnosis management function and a component replacement time management function are performed and, if an emergency situation occurs while those functions are performed, a pop-up message is outputted to the screen and information related to the pop-up message is transmitted over the external communication network. Therefore, the user can recognize an emergency situation at an accurate date, manage the refrigerator more efficiently and rapidly and handle information more conveniently. A touch panel and a radio remote controller are selectively used to input a variety of function key signals enabling a user to watch television through the display unit. Therefore, during housekeeping, the user can conveniently watch the television, enter desired key signals or check delivered mails or character messages based on key inputs entered by himself or herself. A camera and microphone are provided to send and receive image and voice mails, thereby removing the inconvenience of key input.

System and method for controlling communication-executable refrigerator

An Internet refrigerator with a Web pad and a method for operating the same. The Web pad is detachably mounted on the Internet refrigerator, and transmits and receives data to/from the Internet refrigerator on the basis of a remote display protocol (RDP). The Web pad is a client Web pad detachably mounted on an outer surface of the Internet refrigerator. The client Web pad is adapted to receive a display signal transmitted from the Internet refrigerator and output the received display signal externally. A server control unit is provided to transmit the display signal to the client Web pad on the basis of the remote display protocol such that data processed in the Internet refrigerator is displayed through the client Web pad. Application programs and multimedia data are driven on the basis of the server control unit, resulting in a reduction in work-load on the client Web pad.

Internet refrigerator with web pad and method for operating the same

A system and method for switching a communication mode of a pad-detachable refrigerator, wherein the attachment/detachment of a client pad to/from the refrigerator is sensed and the communication mode of the refrigerator with the client pad is switched to a wired/wireless communication mode according to the sensed result so that signals can be transmitted and received in the switched communication mode. The client pad is detachably attached to the outer surface of the refrigerator. A communication module set is installed in the refrigerator to transmit and receive signals to/from the client pad by wire or wirelessly. A refrigerator control unit is adapted to control the communication module set to automatically switch the communication mode of the refrigerator with the client pad to the wired/wireless communication mode according to the attachment/detachment of the client pad. Therefore, the present invention has the effect of increasing the client pad's use efficiency and user's convenience, and stability of signal transmission and reception owing to the automatic switching between the wired communication mode and the wireless communication mode.

System and method for switching communication mode of pad-detachable refrigerator

A networking system for a refrigerator is provided. The networking system includes a main controller for the refrigerator coupled to a first terminal provided on a body portion of the refrigerator, and a second terminal provided on the refrigerator door. The second terminal allows information related to the refrigerator to be input and received, and allows for wireless data exchange between the main controller and the first terminal such that the second terminal to be separated from the refrigerator and still perform such a data exchange. The use of a main controller and first and second terminals allows for increased levels of data storage, and easy access to various types of information.

Young Hoon Roh

Papers

Technical Communique: Robust stabilization of uncertain input-delay systems by sliding mode control with delay compensation

System and method for controlling communication-executable refrigerator

Internet refrigerator with web pad and method for operating the same

System and method for switching communication mode of pad-detachable refrigerator

Networking system of refrigerator and method for operating the same