Network based multiple sensor and control device with temperature sensing and control

Abstract

A multifunction sensor device which provides various transducer functions including means for performing temperature sensing, humidity sensing, ambient light sensing, motion detection, thermostat functions, switching functions, load switching and dimming functions, displaying actual and set temperature values, displaying time of day values and a means to put the device in an on, off or auto mode. The device has utility in environments such as that found in offices, schools, homes, industrial plants or any other type of automated facility in which sensors are utilized for energy monitoring and control, end user convenience or artificial or natural cooling, heating and HVAC control. The device can be used as a switch or dimmer, sensor or thermostat as well as to adjust and control all natural and artificial lighting, temperature and humidity devices. Key elements of the invention include overcoming the difficulty of mounting diverse sensors or transducers within the same device or housing; permitting these various sensors to exist in a single package that can be mounted to a wall in a substantially flush manner; and eliminating the requirement of an air flow channel in the device, thus minimizing any adverse effects on the motion detecting element or sensor as well as providing built in partial hysteresis. The device may include additional transducers or sensors and is constructed such that the temperature and humidity sensors are neither exposed to the flow of air in a room or area nor in an airflow channel whereby a chimney effect may occur. The device can transmit and receive real time data, relative data and actual discrete data in addition to switching and controlling loads locally or remotely. An embodiment utilizing airflow channels to direct air over the temperature and humidity sensors is also disclosed.

Description

FIELD OF THE INVENTION The present invention relates generally to the field of electrical sensors and more particularly to a network based multi-function sensor and control device suitable for sensing motion, temperature, humidity and ambient light, setting and controlling temperature and control relay and ballast loads and which includes blinder devices for reducing nuisance tripping of the device. BACKGROUND OF THE INVENTION Today, automation systems are being installed in more and more buildings, including both new construction and in structures that are being rebuilt. The incentives for putting automation systems into a building are numerous. High on the list are reduced operating costs, more efficient use of energy, simplified control of building systems, ease of maintenance and of effecting changes to the systems. Facility managers would prefer to install systems that can interoperate amongst each other. Interoperability is defined by different products, devices and systems ...

AI Technical Summary

Benefits of technology

"The present invention is a multifunction sensor and thermostat device that can control temperature, humidity, and motion detection in a single device. The device can be mounted to a wall or surface and can interface with other devices in a network or control system. It can be used in various environments such as offices, schools, or industrial plants. The device includes a means for temperature sensing, humidity sensing, and motion detection. It can be calibrated and has hysteresis to adjust to the environment. The device can be used in a flush mount or multiple gang electrical box and can be self-calibrated. The invention provides a means for controlling energy and monitoring energy usage in real-time."

Problems solved by technology

With this type of proprietary system, the installation, servicing and future modifications of the component devices in the system were restricted to a single manufacturer's product offering and technical capability.

In addition, it was very difficult or impossible to integrate new technology developed by other manufacturers.

If technology from other manufactures could be integrated, it was usually too costly to consider.

Further, the hole in the wall is often created when the device is mounted on a wall in a home or office building.

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