3061 results about "Temperature.ambient" patented technology

A breathing assistance system for delivering a stream of heated, humidified gases to a user, comprising a humidifier unit which holds and heats a volume of water, and which in use receives a flow of gases from a gases source via an inlet port, the flow of gases passing through the humidifier and exiting via an exit port, the system further having a temperature sensor which measures the temperature of the gases exiting the humidifier unit, an ambient temperature sensor which measures the temperature of gases before they enter the humidifier unit, and a flow sensor which measures the flow rate of the gases stream, the system also having a controller which receives data from the temperature and flow sensors, and which determines a control output in response, the control output adjusting the power to the humidifier unit to achieve a desired output at the humidifier unit exit port.

Embodiments of the invention describe thermostats that are configured to precondition an enclosure and methods for performing the same. According to one embodiment, a method of preconditioning an enclosure includes providing a thermostat and computing a set of preconditioning criteria information (PCI) with said thermostat. The computed PCI is typically representative of time and ambient temperature conditions for which preconditioning should be performed. The PCI may be stored in memory and used to compare against a current time and current ambient temperature condition of the enclosure to determine whether to enter the thermostat into a preconditioning state. If a determination is made that the PCI criteria are satisfied, the thermostat may be entered into the preconditioning state to heat or cool the enclosure. One or more of these processes may be performed while a processor of the thermostat is in a relatively high power mode or relatively low power mode.

The present invention is directed to a transport package which efficiently maintains payload temperature within a predetermined temperature range during delivery through regions having ambient temperatures outside the desired range. The transport package is used for transporting temperature sensitive materials and thermally protecting the materials from cold and hot ambient temperatures in a manner that does not require a power source or other mechanical devices. Aspects of the invention relate to a temperature maintaining packaging system having an outer container, thermal insulation materials and two or more different phase change materials.

The invention discloses a sea fog all-time all-weather inversion method based on multispectral weather satellite information. According to the method, the influence of the diurnal change of sea surface temperature on the fog region identification is considered, a sea surface brightness temperature ambient field (clear sky composite map) (CSCM) is established aiming at the daytime and night respectively and independently according to the diurnal variation characteristic of the sea surface temperature, and a foundation is laid for accurate inversion of dissipation and concentration change in a satellite monitoring sea surface fog region; furthermore, the method aims at typical spectral characteristics of sea fog satellite monitoring at three different time intervals of daytime, night and morning and night, the optimized spectral combination and corresponding algorithm flow are respectively selected, and the all-time accurate identification of a sea surface fog region, a clear sky region and a cloud region is reliably realized.

The invention provides a constant-humidity refrigeration method and a system. The method comprises the following steps: a set target environment temperature is obtained, and an indoor environment temperature and a preset target humidity range are obtained every preset time; a dew point temperature is looked up from a table according to the obtained indoor environment temperature and preset target humidity range; the found dew point temperature is set as a target evaporation temperature of the operation of an air conditioning evaporator; and an operation frequency of a compressor is adjusted according to a difference value between a present evaporation temperature and the target evaporation temperature of the air conditioning evaporator until the indoor environment temperature reaches the target environment temperature. When the indoor target environment temperature is precisely controlled, the indoor humidity is guaranteed without causing excessive indoor dryness, so that the uncomfortable body condition of users is prevented, and the user experience of air conditioners is enhanced.

A series of nominally identical workpieces is received from a manufacturing process and measured on a measuring apparatus. They are received at a non-ambient temperature because of heat introduced during the manufacturing process, but they are placed on the measuring apparatus in a repeatable manner, e.g. by a robot, such that their non-ambient temperatures when measured are repeatable. One of the workpieces is measured as a reference workpiece at the non-ambient temperature, and these measurements are compared to calibrated values obtained from an external source, in order to generate an error map or error function. The error map or error function is used to correct measurements of subsequent workpieces of the series which are measured at the repeatable non-ambient temperature.

A tape-like label forming device (1) is capable of forming a label tape (42) that is made up of a printing tape (20) and a double-sided tape (24, 24a). A temperature-indicating material (80) that changes color in response to changes in ambient temperature is applied to the surface of the printing tape (20). With this construction, since the color of the temperature-indicating material (80) conceals the colors of the double-sided tape (24, 24a) and characters such as letters and symbols printed on the underside of the printing tape (20), the colors of the characters and the double-sided tape (24, 24a) can be freely selected and combined.

The invention discloses a method for controlling low-temperature heating start of an air conditioner as well as the air conditioner and a storage medium. The method for controlling low-temperature heating start of the air conditioner comprises the following steps: responding to a heating start instruction, and obtaining outdoor environment temperature and compressor duration time of stopping operation; according to the outdoor environment temperature and the compressor duration time of stopping operation or according to the outdoor environment temperature and length of a connected tube of theair conditioner, determining that the air conditioner meets a condition of entering a low-temperature heating start control mode; performing at least one of the following: controlling compressor operation, and controlling a four-way valve to electrify while operation time length of the compressor reaches first preset time length; regulating rotation speed of an outdoor fan according to the outdoorenvironment temperature; and obtaining a compressor gas exhaust temperature, and controlling a heating state of an electric heating belt of the compressor according to the gas exhaust temperature andthe outdoor environment temperature. The method can increase gas suction pressure, under a low-temperature environment, of the compressor, and strengthens use reliability of the compressor.

Embodiments of the invention describe thermostats that use model predictive controls and related methods. A method of controlling a thermostat using a model predictive control may involve determining a parameterized model. The parameterized model may be used to predicted ambient temperature values for an enclosure. A set of radiant heating system control strategies may be selected for evaluation to determine an optimal control strategy from the set of control strategies. To determine the optimal control strategy, a predictive algorithm may be executed, in which each control strategy is applied to the parameterized model to predict an ambient temperature trajectory and each ambient temperature trajectory is processed in view of a predetermined assessment function. Processing the ambient temperature trajectory in this manner may involve minimizing a cost value associated with the ambient temperature trajectory. The radiant heating system may subsequently be controlled according to the selected optimal control strategy.

The invention relates to an air conditioner and a control method of the air conditioner. The air conditioner comprises a compressor, a four-way valve, an indoor heat exchanger, an outdoor heat exchanger and a throttling part, which are connected by a pipeline to form a closed air conditioning system, and is characterized by also comprising a refrigerant heater, an exhaust gas temperature sensor, a temperature sensor of the indoor heat exchanger, an indoor ambient temperature sensor and an outdoor ambient temperature sensor, wherein the refrigerant heater is arranged on an exhaust pipe of the compressor or is arranged on a connection pipe of the indoor heat exchanger and the four-way valve, the exhaust gas temperature sensor is arranged at an outlet of the compressor, the temperature sensor of the indoor heat exchanger and the indoor ambient temperature sensor are respectively arranged on the indoor heat exchanger, and the outdoor ambient temperature sensor is arranged on the outdoor heat exchanger. The air conditioner has the advantages that when the outdoor ambient temperature is low, the heating capability of a system can be effectively improved, and the comfort level of a user during the low temperature heating is increased; and a pipeline of the system is not improved greatly, and the purposes of low temperature heating amount is achieved by a simple and reliable mode.

The invention discloses an air conditioner and an air speed control method thereof, wherein an air outlet of an indoor unit is provided with an air scattering plate for softening the air outlet speed of the indoor unit and provided with an air guide plate for adjusting the air outlet direction of the indoor unit. The method comprises the following steps: when the air conditioner operates the refrigeration, if a no-air-feeling control command is received, the air conditioner is controlled to enter a no-air-feeling operation mode; the indoor environment temperature is judged; if the indoor environment temperature is higher than a first temperature threshold, the air scattering plate is controlled to open, the air guide plate is controlled to upwards move, and the rotating speed of an indoor fan is controlled to be lower than a first preset rotating speed; and if the indoor environment temperature is lower than or equal to a difference between the first temperature threshold and a preset correction temperature, the air scattering plate is controlled to close, the air guide plate is controlled to open at a preset air outlet angle, and the rotating speed of the indoor fan is controlled to lower than or equal to a second preset rotating speed. The air conditioner and the air speed control method thereof not only can provide comfortable temperature environment, but also can provide comfortable indoor air speed environment, so that the comfort is improved.

An air-conditioning system for a building includes a hot water distribution circuit, a cold water distribution circuit, and several terminal air conditioning units. Each of the terminal air conditioning units includes a fan blowing air in a space of the building, a heating coil connected to the hot water distribution circuit and / or a cooling coil connected to the cold water distribution circuit. At least one ambient temperature control system allows to control heating power of the heating coils and cooling power of the cooling coils. The system further includes a calorific energy management system with a heat pump for transferring calorific energy: a) from the cold water distribution system to the hot water distribution system; b) from the cold water distribution system to atmosphere; and c) from the atmosphere to the hot water distribution system. The calorific energy management system can manage the calorific energy transfers with a three level control system to optimize energy consumption.

The method is suitable for the technical field of thermal temperature measurement and face detection, and provides a set of detection passage system integrating temperature measurement and face recognition gate partners. A face imaging camera, a thermopile sensor, a TOF optical distance measuring lens module and an environment temperature compensation module are arranged; the face imaging camera is used for detecting and recognizing a face and judging whether the face of the detected person faces the gate partner or not; the thermopile sensor is used for detecting the forehead temperature value of the detected person and the ambient temperature value around the human face when the front face of the detected person faces the face imaging camera;; the TOF optical distance measuring lens module is used for detecting a distance value between a human face and the thermopile sensor; and the environment temperature compensation module is used for carrying out temperature compensation according to the forehead measured temperature value, the distance value between the human face and the thermopile sensor and the environment temperature value so as to obtain the human body temperature valueof the measured person, and outputting the human body temperature value as a result, so that when the gate carries out human face recognition, body temperature detection can be carried out on the measured person, and passage is effectively controlled.