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1237results about "Humidity control" patented technology
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Self-programmable thermostat
ActiveUS7784704B2Minimize the numberEasy to useTemperature control without auxillary powerMechanical apparatusHabitEngineering
A hybrid manual / programmable thermostat for a furnace or air conditioner offers the simplicity of a manual thermostat while providing the convenience and versatility of a programmable one. Initially, the hybrid thermostat appears to function as an ordinary manual thermostat; however, it privately observes and learns a user's manual temperature setting habits and eventually programs itself accordingly. If users begin changing their preferred temperature settings due to seasonal changes or other reasons, the thermostat continues learning and will adapt to those changes as well. For ease of use, the thermostat does not require an onscreen menu as a user interface. In some embodiments, the thermostat can effectively program itself for temperature settings that are set to occur at particular times daily or just on weekends, yet the user is not required to enter the time of day or the day of the week.
Owner:ADEMCO INC
Thermostat having modulated and non-modulated provisions
ActiveUS20050040247A1Quick and efficientEasy to adaptMechanical apparatusSpace heating and ventilation safety systemsAir managementEngineering
A thermostat providing modulated or analog control of valves or dampers of an air management system. This permits operating a single cooling or heating stage with partially open valves or dampers as needed, since one full stage that is either fully on or off may not be easy to manage for effective air management of a particular type of building, zone or facility. The thermostat may also provide non-modulated control of multi-stage cooling and heating systems. The thermostat may even be used to control a modulated system having more than one stage of cooling or heating.
Owner:HONEYWELL INT INC
Application of microsystems for comfort control
ActiveUS7854389B2Reduce laborReduce materialMechanical apparatusTemperatue controlEngineeringRelative humidity
An arrangement includes a plurality of wireless microsystems. Each microsystem is operable to measure at least relative humidity and temperature, and to communicate temperature and relative humidity information wirelessly to a network device. The network device is operable to communicate the temperature and relative humidity information to at least a first processor configured to cause a change in a building control condition based on the information.
Owner:SIEMENS IND INC
Air conditioning control system for variable evaporator temperature
InactiveUS6269650B1Mechanical apparatusSpace heating and ventilation safety systemsControl systemAir conditioning
A system and method of control of refrigerant air conditioning including a humidity input sensor, and a coolant velocity sensor, using a control system set with a set point whereby to maintain a maximum evaporator temperature set point varying to suit each heat and moisture load condition over a range of conditions compatible with high engineering standards of performance.
Owner:SMAC TECH
Humidity control for air conditioning system
ActiveUS8091375B2Increase humiditySimple methodMechanical apparatusSpace heating and ventilation safety systemsMicrocontrollerAir cycle
In an air conditioning system for circulating cooled air to an enclosed space, a controller including a temperature sensor, a humidity sensor and a microcontroller for controlling the indoor fan or blower to prevent operation of same if a fan run-on mode is selected or continuous fan operation is selected and the humidity sensed in the enclosed space is greater than a predetermined amount. Continuous fan operation is allowed unless the humidity exceeds a user defined setpoint during an air cooling operating mode. If the humidity sensed is greater than the predetermined amount, the fan is operated only when the system is providing cooled air, such as when the system compressor is energized.
Owner:TRANE INT INC
Control method and apparatus for an air conditioner using occupant feedback
InactiveUS20070138307A1Reduce the burden onAlleviate the occupant's discomfortTemperature control without auxillary powerMechanical apparatusEngineeringBreathing
A method and apparatus are disclosed for determining a command which controls a device in a heating ventilation aid-conditioning (HVAC) system 10. A plurality of comfort related values are entered by occupants of an environment to be air conditioned. A rule-base takes the comfort related values, and one or more rules are applied to these so as to produce a fuzzy results. This is then defuzzified so as to obtain a crisp device command value.
Owner:KHOO TECK HOE
Integrated Controller And Fault Indicator For Heating And Cooling Systems
InactiveUS20080315000A1Promote mold growthShorten speedTemperature control using plurality of sensorsTesting/monitoring control systemsFault indicatorEngineering
An integrated controller for controlling a vapor compression based heating and cooling system. The integrated controller includes modules for independently controlling dry bulb temperature, humidity level, and incorporating a fault detection module therewith. The fault detection module being capable of detecting abnormal refrigerant levels using only temperature sensors on the condenser with thermal expansion valve or evaporator with fixed orifice type of expansion valve.
Owner:HOME AUTOMATION INC
Modular register vent for zone heating and cooling
InactiveUS20100012737A1Difficult to coolHeat is not easyMechanical apparatusSpace heating and ventilation safety systemsZone SystemMonitoring system
A modular Electronically-Controlled Register Vent (ECRV) that can be easily installed by a homeowner or general handyman is disclosed. The ECRV can be used to convert a non-zoned HVAC system into a zoned system. The ECRV can also be used in connection with a conventional zoned HVAC system to provide additional control and additional zones not provided by the conventional zoned HVAC system. In one embodiment, the modular ECRV can be configured to various sizes and form-factors that conform to a standard manually-controlled register vent. In one embodiment, a zone thermostat is configured to provide thermostat information to the ECRV. In one embodiment, the zone thermostat communicates with a central monitoring system that coordinates operation of the heating and cooling zones. In one embodiment, the zone thermostat communicates with a central monitoring system that coordinates operation of the heating and cooling zones and provides heating and cooling to the various zones according to a cost budget.
Owner:KATES LAWRENCE
Low temperature clothes dryer
InactiveUS7191546B2Circulated airMinimizes shutdownAgriculture tools and machinesDrying chambers/containersThermostatAir temperature
A low temperature clothes dryer having a drying chamber provides removable horizontal screens supporting clothing items and a hanging bar for hanging clothes to be dried. A timing control allows setting the time of operation of the drying cabinet. An electric heater with thermostat is provided to initially raise and maintain the air temperature within the drying chamber to at least about 90 degrees F. The dehumidifier is then operated, providing for circulation through the ducts and drying cabinet by an internal fan. The dehumidifier has an evaporator through which warm, humid air is passed, thereby cooling the air and condensing water therefrom, the water being collected in a removable container or drained through a drain hose. The fan forces the cooled, dried air through a condenser which heats the dried air for recirculation through the drying chamber by means of ducts, thereby drying the clothing therein.
Owner:MARUCA ROBERT E
Humidity monitoring and alarm system for unattended detection of building moisture management problems
ActiveUS8172154B1Low costReduce severityMechanical apparatusSpace heating and ventilation safety systemsEarly warning systemEngineering
A detection and monitoring method and system which makes it possible to detect the presence of moisture problems when they manifest as abnormal humidity in one or more discrete ventilation zones within a building envelope. The abnormal humidity can then be investigated and resolved or mitigated to minimize the potential for building damage or adverse occupant health effects occur. The present invention provides an early warning system that will alert personnel of the occurrence of a moisture problem.
Owner:FIGLEY DONALD A +3
Automatic control method and system for irrigation
A controlled irrigation system can include a control device for determining whether to irrigate soil and at least one irrigation structure having an actuator for controlling water flow. The actuator can be communicably coupled to the control device for delivering water to irrigate a region. The controlled irrigation system further can include at least one time domain reflectometry sensor (“TDRS”) located in the soil and communicably coupled to the control device for measuring soil moisture where the control device determines whether to irrigate the soil based on data from the at least one TDRS. Additionally, a method for controlling an irrigation system can include providing multiple TDRS's having probes, distributing each TDRS at a different soil depth, measuring soil moisture content, and irrigating soil based on the measuring step.
Owner:UNIV OF FLORIDA RES FOUNDATION INC +1
Systems and methods for whole-house dehumidification based on dew point measurements
ActiveUS7574871B2Speed up evaporationEfficient dehumidificationMechanical apparatusControlling ratio of multiple fluid flowsInterior spaceEngineering
A dehumidifier system is connected to an interior space of a building through supply and return ducts, either directly and / or through an HVAC system. Controllable dampers can be used to select how the dehumidifier system is connected to the interior space and the HVAC system. The dehumidifier determines the dew point of the ambient air from temperature and relative humidity measurements taken at location(s) of relative humidity and temperature sensors. Based on the determined dew point, the dehumidifier system determines whether to operate. The temperature and relative humidity sensors can be located in the interior space or within the dehumidifier, where they project into the air stream flowing through the dehumidifier. The dehumidifier system operates in response in part to blower calls to the HVAC system and controls the HVAC system and a ventilation system to distribute the dehumidified air and outside air throughout the building.
Owner:RES PRODS
Ventilation system with humidity responsive ventilation controller
InactiveUS6935570B2Reduce humiditySatisfactory humidity levelMechanical apparatusControlling ratio of multiple fluid flowsElectrical junctionEngineering
A ventilation controller including at least one humidity sensor for controlling the humidity of a room. The ventilation controller incorporates a housing sized and shaped to replace, or be placed in, a standard electrical junction box. Circuitry in the controller receives data from the sensor(s). The controller automatically switches on power to an exhaust fan when either the humidity exceeds a manually set humidity level and / or a rapid increase in humidity is observed. When a plurality of sensors is employed, the humidity level from a first sensor is compared by logic circuitry to the humidity levels detected at a reference sensor(s). When the humidity at the first sensor exceeds the humidity at the reference sensor(s), the ventilation controller switches on power to the exhaust fan.
Owner:ACKER PHILLIP F
Application of microsystems for comfort control
ActiveUS20070084937A1Reduce laborReduce material costsMechanical apparatusTemperatue controlEngineeringRelative humidity
An arrangement includes a plurality of wireless microsystems. Each microsystem is operable to measure at least relative humidity and temperature, and to communicate temperature and relative humidity information wirelessly to a network device. The network device is operable to communicate the temperature and relative humidity information to at least a first processor configured to cause a change in a building control condition based on the information.
Owner:SIEMENS IND INC
Architectural dynamic control: intelligent environmental control and feedback system for architectural settings including offices
A smart, adaptive control system that monitors and influences physical conditions of an architectural setting. The architectural setting in which the system is deployed typically includes a plurality of private spaces and at least one community space. The individual private spaces, and the community spaces, may include an environmental control device that affects one or more physical conditions of the individual private space. Each private space may also include an environmental sensor that measures a particular physical condition of the private space. The private spaces may also include one or more occupant sensors, which measure either behavioral or physiological parameters of an occupant. The environmental control devices, environmental sensors, and occupant sensors are in communication with a computer. The computer is also in communication with a database, which houses a data set that describes how to best modify the physical conditions of the architectural setting.
Owner:ORFIELD LAB
Single integrated humidity and ventilation control in an HVAC system
ActiveUS7266960B2Avoid condensationMechanical apparatusSpace heating and ventilation safety systemsFresh airHeating season
HVAC systems are employed to control the indoor environmental characteristics of a building structure to make it comfortable for its inhabitants. An HVAC system includes one single integrated central control to regulate an indoor temperature level, an indoor relative humidity level and an indoor fresh air level of a building structure during both a heating season and a cooling season. Further, the single integrated central control is operable to selectively activate / deactivate an indoor blower to control a sensible ratio within a building structure. In addition, a protection feature for avoiding condensation on the interior surfaces of the building structure is included as an user selectable option.
Owner:CARRIER CORP
Building, ventilation system, and recovery device control
ActiveUS20080108295A1Reduce energy consumptionImprove purification effectMechanical apparatusLighting and heating apparatusVariable air volumeAir volume
Control systems for recovery wheels, ventilation systems with recovery devices, buildings having ventilation, and methods of controlling recovery wheels and controlling or modifying ventilation systems. A parameter of ventilation systems or recovery devices, such as the speed of a recovery wheel, may be controlled as a function of pressure, differential pressure, flow rate, or fan speed, for example, to provide appropriate purge flow to maintain purge effectiveness and limit the carry-over of contaminants from a return / exhaust airstream to an outside / supply airstream, for instance, in a variable air-volume system. A purge angle may be set at a minimum position commensurate with a maximum flow rate and recovery-wheel speed may be reduced at lower flows to maintain purge effectiveness. In some embodiments, temperature and humidity are measured, and wheel speed is also controlled as a function of these measurements. Systems may utilize sensors, input devices, digital controllers, variable-speed drives, and alarms.
Owner:SEMCO INC
Devices and systems for remote and automated monitoring and control of water removal, mold remediation, and similar work
InactiveUS7243050B2Mechanical apparatusDigital computer detailsWeb siteEnvironmental resource management
Electronic devices, systems, and methods are disclosed for remote and / or automated monitoring of temperature, humidity, or other factors in a building during a remediation project, such as after a flood or mold infestation. These devices comprise sensors devices that can be distributed around a room or building, for transmitting data to a processor such as a laptop computer. Using telephone, cell phone, or internet connections, the processor can transmit compiled data to a website or remote computer, for analysis and use by a project supervisor. Sensor-switch devices also are disclosed for turning fans, dehumidifiers, or other equipment on or off. Using a telephone, cell phone, or internet connnection, a project supervisor at any location can download information, obtain current status information, and turn equipment on or off as needed.
Owner:ARMSTRONG JAY T
Environmental control system for a vehicle
ActiveUS7946505B2Obscure his visionThermometer detailsThermometers using electric/magnetic elementsAmbient humidityControl system
An environmental control system for a vehicle, in particular for predicting internal misting of a vehicle windscreen, the system comprising a windscreen temperature sensor assembly 28, an ambient humidity sensor assembly 32 and a second temperature sensor assembly 30 for sensing the temperature of the humidity sensor assembly 32. The windscreen temperature sensor assembly 28 is mounted on an interior rearview mirror support bracket 10 for engagement with the interior surface 18 of the windscreen, and the second temperature and humidity sensor assemblies are mounted within a rearview mirror housing 12 mounted to the mirror support bracket 10.
Owner:MAGNA MIRRORS HLDG
Intake air dehumidification system for an internal combustion engine
InactiveUS6817197B1Minimize error valueElectrical controlInternal combustion piston enginesControl signalEngineering
An intake air dehumidification system for an internal combustion engine includes a peltier junction device responsive to at least one control signal to cool, and therefore condense moisture from, ambient air supplied by an air intake conduit to an intake manifold of the engine. Specific humidity of the ambient air supplied to the intake manifold is determined, and a control circuit is provided to produce the at least one control signal as a function of the specific humidity to maintain the specific humidity of the ambient air supplied to the intake manifold near a target humidity value.
Owner:CUMMINS INC
Data Centre Cooling Systems
ActiveUS20130062047A1Energy efficiencyIncreased riskSpace heating and ventilation safety systemsLighting and heating apparatusOne-hotData center
A method of cooling a data centre having at least one hot aisle (145) and at least one cold aisle (144), including the steps of producing cooling air having controlled to have temperature and relative humidity within certain pre-defined limits; supplying the cooling air to a plurality of items of IT equipment (143) located in the data centre between the cold aisle and the hot aisle; measuring the velocity of air flowing from the hot aisle to the cold aisle through an opening (150) between the hot aisle and the cold aisle; and controlling the rate of supply of cooling air to the items of IT equipment in dependence on the velocity of air so measured.
Owner:BRIPCO
Humidity controller
InactiveUS7106955B2Medical devicesOhmic-resistance heatingElectrical resistance and conductanceEngineering
A breathing assistance apparatus adapted to deliver humidified gases at a desired level of humidity to a patient including a humidifier and a heated conduit is disclosed. The humidifier includes a controller which determines the flow rate of the gases and then determines the required power input to the humidifier to deliver the gases to the patient at the required patient humidity. This means the need for external sensors is dispensed with and thus the apparatus is simple and less bulky. The resistance of the conduit heater element is monitored to give a coarse indication of flow rate.
Owner:FISHER & PAYKEL HEALTHCARE LTD
Anti-sweat heater demand supply module using temperature and humidity control
ActiveUS8434317B2Prevent short-cyclingLow costSpace heating and ventilation safety systemsSpace heating and ventilation control systemsEngineeringPeak value
A refrigerated appliance such as a refrigerator receives a demand response signal indicating a peak demand period and operates the refrigerator in an energy savings mode by disabling an anti-sweat heater. Sensors monitor ambient temperature and humidity, and the dry bulb temperature of a preselected region where incipient moisture would likely form. Data from the sensors is sent to a controller which calculates ambient dew point and compares the dry bulb temperature of the preselected region with the calculated dew point to enable the anti-sweat heater during the peak demand period and prevent incipient formation of moisture.
Owner:HAIER US APPLIANCE SOLUTIONS INC
Temperature control system
InactiveUS7084774B2Mechanical apparatusTemperature measurement in air-conditioning systemsTemperature controlControl system
Owner:INT BUSINESS MASCH CORP
Irrigation system with ET based seasonal watering adjustment and soil moisture sensor shutoff
An irrigation system includes at least one environmental sensor, such as a solar radiation sensor, that is installed on an irrigation site, and a soil moisture sensor that is also installed on the irrigation site. Programming allows an estimated ET value to be calculated based at least in part on the output signal of the environmental sensor. A pre-programmed watering schedule is automatically modified based on the estimated ET value to thereby conserve water while maintaining the health of plants on the irrigation site. The system automatically inhibits irrigation when an output signal of the soil moisture sensor indicates an amount of moisture in the soil is above a predetermined threshold.
Owner:HUNTER INDUSTRIES
Control system and method for both energy saving and comfort control in an air conditioning system
InactiveUS20120303165A1Mechanical apparatusStatic/dynamic balance measurementTemperature controlControl system
A control system and method for controlling both temperature and humidity in an air conditioning system having a variable-speed compressor and a variable-speed indoor blower. In one embodiment, the control system includes: (1) a temperature control loop in which a target speed of the compressor is determined based on sensed and setpoint temperatures and (2) a humidity control loop, located in the temperature control loop, in which a target speed of the indoor blower is determined based on sensed and setpoint humidities, the target speed of the compressor employable to control the compressor and the target speed of the indoor blower employable to control the indoor blower of the air conditioning system.
Owner:LENNOX IND
System for allergen reduction through indoor humidity control
InactiveUS7264649B1More efficiencyLower Level RequirementsMechanical apparatusControlling ratio of multiple fluid flowsAir cycleDesorption
The invention provides a humidity control system (HCS) to control indoor humidity within a specified range so as to reduce indoor house-dust mite allergen levels. The invention also provides a hydrogel absorber / desorber for reversibly absorbing water vapor from air releasing water vapor to air. The invention employs a reversible hydrogel desiccant as the active element for absorption and desorption of water, thus rendering the HCS more effective and energy-efficient than traditional humidification / dehumidification systems. The HCS of the invention treats indoor air by drawing fresh air in from outside and adjusting the humidity of the air-stream. In certain embodiments, fresh air is drawn in from the outside and mixed with recirculated air. The HCS uses a controller to introduce fresh air into the interior space and to control air circulation within it. Relative humidity is monitored remotely throughout the interior space using wired or wireless sensors.
Owner:ADVANCED DESIGN CONSULTING USA
Controlling airflow in an air conditioning system for control of system discharge temperature and humidity
ActiveUS7228693B2Easy to operateLess discomfortFuel supply regulationMechanical apparatusControl systemAir handler
An air conditioning system may comprise an air handler, heat pump or fossil fuel furnace and may include a variable speed blower for conducting air through the system and operably connected to a controller which is also connected to a thermostat and / or humidity sensor. A discharge air temperature sensor may be disposed downstream of or embedded in a heat exchanger of the air conditioning system and connected to the controller for controlling the blower speed and airflow through the system. The amount of heating or cooling effect produced by the heat exchanger or blower speed may be adjusted to provide a constant discharge temperature or lower the humidity of air returning to a controlled space.
Owner:TRANE INT INC
Context adaptive cool-to-dry feature for HVAC controller
ActiveUS20140319231A1Reduce humidity levelLighting and heating apparatusHumidity controlThermostatSelf adaptive
A thermostat may include one or more temperature sensors that provide temperature sensor measurements, a humidity sensor that provides humidity sensor measurements, an occupancy sensing system that may be used to characterize an occupancy status of an enclosure in which the thermostat is installed from among a plurality of possible occupancy statuses including an occupied state and an away state; and a processing system. The processing system may be configured to activate a cooling function of an HVAC system to reduce a humidity level in the enclosure based on a first set of conditions when the occupancy status is in the occupied state, or based on a second set of conditions when the occupancy status is in the away state.
Owner:GOOGLE LLC
Method and apparatus for energy recovery in an environmental control system
InactiveUS20060130500A1Mechanical apparatusSpace heating and ventilation safety systemsControl systemEnvironmental control system
Owner:ELUTIONS
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