965 results about "Thermal comfort" patented technology

A method for controlling temperature in a thermal zone within a building, comprising: using a processor, receiving a desired temperature range for the thermal zone; determining a forecast ambient temperature value for an external surface of the building proximate the thermal zone; using a predictive model for the building, determining set points for a heating, ventilating, and air conditioning (“HVAC”) system associated with the thermal zone that minimize energy use by the building; the desired temperature range and the forecast ambient temperature value being inputs to the predictive model; the predictive model being trained using respective historical measured value data for at least one of the inputs; and, controlling the HVAC system with the set points to maintain an actual temperature value of the thermal zone within the desired temperature range for the thermal zone.

A multiple language user interface system for a thermal comfort controller. The user interface system has a central processing unit coupled to a memory, a language selector and a touch sensitive display unit. The memory can store at least one user interface object and at least one control algorithm. In some embodiments, the user interface system also has a network interface for connecting to the Internet or other network. In some embodiments, the first time the user interface system is powered-up after installation, a first set of user interface objects are displayed on the display unit and the user selects a preferred language. Once a preferred language is chosen, user interface objects can be loaded into the memory and the display unit will display the user interface objects in the preferred language. In some embodiments, control algorithms are loaded into memory.

The present invention discloses an energy-saving thermal comfort controller and a control method for heating, ventilating and air-conditioning systems based on thermal comfort index, energy-saving control and neural network arithmetic. Wherein, the controller calculates and displays thermal comfort index based on air temperature, humidity, wind speed, radioactive temperature and user activity details and wearing details. The air temperature and humidity are measured by a sensor. The radioactive temperature is equivalent to the air temperature. The wind speed is obtained by calculating input power of a fan. User activity details and wearing details are defined by users themselves or conform to default values. The energy-saving control method divides heating, ventilating and air-conditioning system into three operating phases, viz. quick refrigerating / heating, comfortable operation and energy-saving operation and provides corresponding set comfort index. In addition, the neural network arithmetic conducts calculation and outputs control signals according to difference between set comfort index and actual index to control the heating, ventilating and air-conditioning system respectively through a AC and a DC drive circuit, thus realizing the highest comfort and the lower energy consumption.

The invention provides an air conditioning control method and apparatus, a storage medium and an air conditioner. The method comprises the steps that when the air conditioner conducts heating running,whether environmental parameters and / or operating parameters of the air conditioner meet the condition that the air conditioner enters a preset control mode or not; and if it is detected that the environmental parameters and / or the operating parameters meet the entry condition, the air conditioner is made to enter the preset control mode to suppress frosting of an outdoor heat exchanger of the air conditioner. By means of the scheme, frosting of the outdoor heat exchanger of the air conditioner is effectively suppressed or delayed, and the comfort of low temperature heating is improved.

An air conditioner control method includes the following steps that firstly, historic physiological parameters of a user, indoor environment parameters, personal parameters and a thermal comfort degree subjective assessment result are trained and a human body thermal comfort degree model of the user is acquired; secondly, all the parameters of the user at the current moment are acquired and input into the human body thermal comfort degree model, a PMV output value is acquired, and according to the PMV output value, an operation command is output; thirdly, the operation command is sent to an air conditioner to change the operation state of the air conditioner; fourthly, after a period of time, the second step is conducted continuously till the PMV output value is within a preset PMV threshold value range. The invention further provides an air conditioner control system using the method. By the adoption of the air conditioner control method and system, the human body thermal comfort degree serves as a starting point, an air conditioner adjusting mode suitable for the user is adopted according to the thermal comfort condition of the current user, an air conditioner system is intelligently and automatically adjusted, and dynamic thermal comfort control of the indoor environment is achieved.

The invention discloses a defrosting control method and a defrosting control device for an outdoor unit of an air conditioning unit as well as an air conditioning system. The method comprises the following steps: obtaining an environment temperature of the outdoor unit, a tube temperature of the outdoor unit and operation current of an outdoor fan; when the operation current of the outdoor fan reaches a preset current value and the tube temperature reaches a preset defrosting temperature, controlling the air conditioning unit to start defrosting; determining the preset defrosting temperature by the environment temperature; when the time that the operation current of the outdoor fan reaches the preset current value exceeds the first preset time, controlling the air conditioning unit to start defrosting; obtaining the operation current of the outdoor fan after the air conditioning unit starts defrosting; and when the operation current of the outdoor fan is smaller than the preset current value after the air conditioning unit starts defrosting, controlling the air conditioning unit to stop defrosting. According to the technical scheme provided by the invention, the heating comfort of the air conditioning unit can be improved.

The invention provides a thermal comfort degree evaluating system based on environmental parameters and human body physiological parameters. The thermal comfort degree evaluating system comprises an input module, an operation module and an output module, the input module comprises a sensor collecting unit, a positioning unit and a data input unit, the sensor collecting unit is used for collecting the environmental parameters and the human body physiological parameters, the positioning unit is used for detecting geographic position of an individual, the data input unit is used for enabling the individual to manually input parameters, the operation module is used for operation according to environment types input by the data input unit to acquire comfort degree evaluating results, and the output module is used for giving adjusting suggestion information according to the comfort degree evaluating results of the operation module. By the thermal comfort degree evaluating system, one-to-one judgment on thermal comfort degrees of different individuals in a same objective environment can be realized, and pertinent suggestions can be provided, so that the defect of shortage of a thermal comfort degree evaluating system based on individual objective physiological reaction due to the fact that environment thermal comfort degree and human body thermal comfort degree are not differentiated is overcome.

A vehicle window includes a pane of self-darkening or laminated glass and a function layer made of a low-emission material disposed on an inside surface of the pane. The function layer reflects a first infrared radiation into the vehicle and reduces an emission of a second infrared radiation from the glass pane into an interior of the vehicle. In addition, a method for regulating a thermal comfort of a passenger in an interior of a vehicle includes the steps of providing a self-darkening glazing as protection against glare and heat, disposing an IR-reflecting transparent layer on the glazing in form of a coating or film, reflecting an infrared radiation emitted from the vehicle interior back into the vehicle interior using the IR-reflecting transparent layer, and reducing a heat radiated by the glazing into the vehicle interior.

The present invention relates to a phase change material and a heat storage mortar prepared by using the phase change material. The phase change material comprises, by weight: one part of an organic layered material, 1-4 parts of a heat conduction enhancer, and 10-20 parts of an organic phase change material. The phase change material has excellent heat storage effect and flame retardant properties, and has good compatibility with a base material. The heat storage mortar prepared by using the phase change material includes, by weight: one part of cement, 1.5-2.5 parts of a fine aggregate, 0.1-0.25 parts of a lightweight aggregate, 0.1-0.3 parts of the composite shape-stabilized phase change material, 0.005-0.02 parts of a binder, 0.001-0.004 parts of a water-retaining agent, 0.001-0.0025 parts of fiber, and 0.75 to 0.9 parts of water. The mortar has a high rate of heat storage, can improve the building thermal comfort, and reduce building energy consumption.

A climate control system includes a control head having a warmer / cooler temperature control for providing relative thermal comfort. A thermal comfort rating (TCR) corresponding to a range of passenger cabin temperatures is determined based upon a comfort level selection by an occupant using the control head. A control strategy employs look-up tables corresponding to the TCR to determine the speed of an electric compressor and the position of a temperature control blend door. The strategy provides for a relatively fast ramp down to a minimum compressor speed to improve fuel economy while maintaining a relative level of thermal comfort.

An air conditioning controller is provided with a room temperature-humidity combination calculation unit, a temperature-humidity setting value determination unit and a temperature-humidity control unit. The room temperature-humidity combination calculation unit is configured to calculate combinations of room temperature and room humidity corresponding to a target value of a thermal comfort index PMV. The temperature-humidity setting value determination unit is configured to select and determine a combination of the room temperature and humidity that achieves energy saving among the calculated combinations of the room temperature and humidity. The temperature-humidity control unit is configured to separately control the room temperature and humidity so that the room temperature and humidity would measure up respectively to the determined temperature and humidity values.

Systems and methods for monitoring baby's or partially disabled patient's level of thermal comfort during his / her rest in bed are provided. Preferably, the system comprises: a sensor of infrared (IR) radiation coupled to electric circuitry, the circuitry includes a transmitter of radio signal, and, as a separate unit, a receiver of this radio signal. The transmitter includes a circuit containing an alarm with an adjustable threshold that turns the alarm on whenever the heat flux radiated by the body of a patient or a baby rises above user-adjustable upper threshold value, or falls below lower threshold value. The system may be combined with a standard, advanced or video baby monitor.

The invention relates to an air conditioner and a defrosting control method thereof. According to the defrosting control method, whether defrosting control needs to be conducted or not is judged by the way of judging the relation between outdoor environment temperature and outdoor coiled tube temperature, and the optimization time point for entering in the defrosting control can be accurately judged. After the defrosting control is conducted, the frequency of a compressor is changed, and after switching frequency is reached, a four-way valve is directly switched to conduct defrosting control. After defrosting is completed, the frequency of the compressor is changed, and after the switching frequency is reached, the four-way valve is directly switched so that defrosting operation can be achieved. By means of the air conditioner and the defrosting control method thereof, the precision for entering in and exiting out of defrosting can be guaranteed, meanwhile, due to the fact that halting can not occur to the compressor in the defrosting process, heating capacity attenuation caused by halting of the compressor is reduced, the defrosting cycle is shortened, and the heating comfort and the heating performance of the air conditioner are improved.

The invention discloses an air conditioner control method and an air conditioner system. The air conditioner control method includes the following steps that a wearing type device collects body temperature and heart rate information of a user and transmits the body temperature and the heart rate information to an air conditioner control device to enable the air conditioner control device to adjust the temperature of an air conditioner according to the body temperature, the heart rate information and the environment temperature. The method and the system can adjust the operation state of the air conditioner according to the thermal comfort condition of a human body and solve various problems caused by program solidification, enables air conditioner operation to be humanized and intelligent and further enables the air conditioner to be more comfortable in performance and save energy.

A system and method for reducing energy consumption at a site. The system and method may comprise a master control unit with a processor configured to receive data associated with a plurality of equipment at a site via a plurality of network elements communicatively coupled to the plurality of equipment. The master control unit may also be configured to determine control values based on the data and standard human thermal comfort values to ensure minimal energy consumption and optimized human thermal comfort level at the site. The master control unit may also transmitting the control values to the plurality of equipment via the plurality of network elements.

A removable thermal cooling / heating seat / backrest cover has a generally rectangular rear panel formed of flexible water-resistant material, and a front panel including at least one large generally rectangular thermally insulated pocket having an outer side wall formed of a flexible sheet of water and mildew resistant material with an inner side wall formed of shiny reflective metalized foil laminated to closed cell polyethylene foam, the foil facing the interior of the pocket, and the foam facing the rear panel. The cover is removably mounted on the backrest and / or seat of a seating structure by mounting straps. The thermally insulated pocket holds a freezable or microwaveable gel pack for providing cooling or heating comfort to a user. The foil forms a reflective thermal barrier that radiates cold or hot temperatures toward the outer side wall and the foam facilitates maintaining the gel pack at a constant temperature.

The invention discloses a heat comfort detection method based on physiological parameters of the human body. The method comprises the following steps: acquiring the physiological parameters of the human body, including skin temperature, an electrocardiosignal, fingertip pulse, breath and skin impedance; performing peak value identification on the electrocardiosignal to obtain a heart rate variability signal and a heart rate; performing correlation analysis on the skin temperature, the heart rate variability signal, the heart rate, the fingertip pulse, the breath and the skin impedance to acquire the correlation degree of the physiological parameters and heat comfort so as to select optimal physiological parameters; performing regression analysis on the optimal physiological parameters, and building a function relationship between the physiological parameters and the comfort degree; inputting the function relationship of the physiological parameters and the comfort degree to a BP (Back-Propagation) neural network and performing automatic heat comfort degree judgment. The method can be used for intelligently regulating the temperature of an air conditioner by detecting the physiological parameters of the human body in real time and inputting the physiological parameters into an air conditioning system, and individual variation is fully considered, so that the regulated indoor thermal environment is more similar to the expected thermal environment of the human body.

The invention discloses an energy saving thermal comfort control method of an air conditioning system. The method comprises the following steps: (1) when an air conditioner is started, a preset value of thermal comfort PMV is obtained; (2) the clothing thermal resistance and the human body metabolic rate are obtained; (3) an indoor thermal environment initial state point and an energy consumption value corresponding to the initial state point are obtained; (4) an optimizing method is used for enabling a set value of the air conditioning system to continuously approach an optimal combination; and (5) when the indoor PMV value dose not satisfy a thermal comfort range, the steps (3) and (4) are repeated. The method can precisely control the thermal comfort, can effectively reduce the air conditioner energy consumption under the precondition of guaranteeing the thermal comfort, can be suitable for thermal comfort control of different building types and different air conditioning systems at different times without needing sample data, and is wide in application range.

Disclosed is a kitchen exhaust hood and makeup unit control system comprising a control device for controlling the variable speed drive (VSD) for the associated fan, and measurement devices comprising Volatile Organic Compound (VOC) gas transmitter devices and temperature transmitters devices. The exhaust fan VSD speed is controlled to maintain the kitchen hood area at certain comfort level (indoor air quality and thermal comfort) by monitoring the VOC concentration and exhaust duct temperature. The air quality sensors measure the concentration of multiple gases and odorous substances in the air with constant output. These substances, for example, may be cooking smoke, kitchen vapors, human odors and unpleasant smells. The exhaust fan speed is controlled using the proportional-integral-derivative (PID) control loop. The kitchen exhaust and make-up unit supply airflow rate may be measured by an airflow measurement means such as Fan Airflow Station. The kitchen make-up unit fan speed is controlled to maintain the constant airflow difference between the exhaust air and make-up air to maintain the slightly negative pressure in the kitchen area.

The invention provides a heating and ventilating system control method based on multiple-user thermal comfort data. The method comprises the steps that user thermal comfort data are obtained according to current season information fed back by users, the current user movement states and thermal comfort preference; corresponding user thermal comfort preference curves are obtained according to the user thermal comfort data; the thermal comfort probability distribution curves of cold, hot and comfort are obtained according to the user thermal comfort preference curves; a multiple-user thermal comfort probability distribution curve at different indoor environment temperature is obtained according to the thermal comfort probability distribution curves of all users; and the comfort temperature interval of the multiple-user thermal comfort probability distribution curve is used as a selection interval of temperature set values, and the optimal temperature set value of a controlled thermal space is obtained according to the corresponding relation of the air supply volume and the temperature set value. Through the method, the comfort of indoor persons is effectively improved, and the purposes of energy conservation and emission reduction are achieved.

A step of preparing data of (1) material properties of a first part and so on and data of (2) an amount of solar radiation passing through the translucent member to reach a measuring device having a shape imitating a human body part, an amount of solar radiation to the structure, an amount of convection heat transfer in the structure, an amount of radiation heat transfer in the structure, humidity in the structure and / or a thermo-regulating function of the measuring device, and calculating at least one of the amount of heat loss from the surface of the measuring device, the temperature of the measuring device and / or the wettedness at the surface of the measuring device based on at least one in each of data (1) and (2), and a step (b) of calculating a thermal comfort index of the measuring device by using a result of the above calculation, are presented, whereby the thermal comfort of a structure is evaluated without using a laboratory equipment.

A method of operating a heating, ventilation and air-conditioning system of a plug-in hybrid electric vehicle, comprising during a first engine-running condition, where a vehicle window or vent is in a more closed position, operating a climate control system to provide a user requested level of thermal comfort, and during a second engine-running condition, wherein the vehicle window or vent is in a less closed position, limiting the performance of the climate control system and biasing shared vehicle resources to provide additional fuel economy. In this manner, thermal comfort of the vehicle passengers can be maintained while providing additional fuel economy.

The invention belongs to the field of application of heating ventilation air conditioning technologies, relates to an indoor thermal comfort regulating and system energy saving process and particularly relates to a solar phase change heat storage and capillary network radiation heating system. The solar phase change heat storage and capillary network radiation heating system consists of a solar heat collecting module (I), a phase change heat storage module (II), a capillary network radiation heating module (III) and other auxiliary devices, wherein the solar heat collecting module (I) includes a solar heat collector (1); the phase change heat storage module (II) includes a phase change heat storage and release device (2); the capillary network radiation heating module (III) includes a capillary network low-temperature radiation heating network (7); and other auxiliary devices comprise an auxiliary heater box (6), a heat-insulating water storage tank (8), a circulating water pump (9), a pipeline tee joint (10), a pipeline tee joint (14), a pipeline tee joint (15), a cut-off valve (3), a cut-off valve (4), a cut-off valve (5), a cut-off valve (11), a cut-off valve (12), a cut-off valve (13) and the like; and the functions of saving energy and raising the thermal comfort of an indoor environment are achieved by fully utilizing solar resources.

The invention discloses a method for optimized setting of air conditioner temperature in an office building and relates to a dynamic setting method for changing a set value of the air conditioner temperature in real time according to indoor and outdoor environmental factors. To improve the dynamic setting of the air conditioner temperature, a simplified room thermodynamic model is established; in the model, the air conditioning opening is performed in the daytime, and natural ventilation is performed at night. The dynamic relations between the air conditioner load and environmental variables such as outdoor temperature, hot material temperature and the indoor temperature set value are established through the analysis of the room model. With the air conditioner load as an objective function and according to the limiting conditions that the human comfort index PMV value is within the regulated range, an optimized model of the air conditioner temperature set value is established; and optimization solution is performed on the model, so as to obtain the optimal air conditioner temperature set value at each moment. The obtained dynamic temperature set value can guarantee the good thermal comfort level for indoor workers and can effectively reduce energy consumption of the air conditioner.