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623results about How to "Meet comfort requirements" patented technology

Thermal and humid environment integrated control air-conditioning system and method based on thermal comfort evaluation

The invention provides a thermal and humid environment integrated control air-conditioning system and method based on thermal comfort evaluation. The comfort operating level and the corresponding PWV numerical range of an air conditioner are set in strict accordance with national standards, the air conditioner is made to have the humidification adjusting function, an average thermal sensation index PMV value is calculated by acquiring air temperature, relative air humidity, average radiation temperature, wind speed, metabolic rate and clothing thermal resistance and compared with a preset comfort PMV value interval, and the air supply speed, the refrigerating / heating operating state and the humidifying / dehumidifying operating state of the air conditioner are intelligently adjusted according to the comparison result, so that a target area is in a comfort state satisfying the human body, the comfort requirement of the human body is met, the thermal comfort environment of the target area is easily improved, and energy conservation and emission reduction of a building are promoted. The principle and parameter setting of the system and method are scientific, and the operation method is simple and easy to control and implement.
Owner:CHONGQING UNIV

Automobile air-conditioning system

An automobile air-conditioning system comprises a compressor, a vapor liquid separator, a first heat exchanger, a second heat exchanger, a third heat exchanger and an intermediate heat exchanger. The third heat exchanger selectively exchanges heat with an external environment, the intermediate heat exchanger is provided with a first portion and a second portion which can exchange heat, and a throttling element is arranged in a pipeline passing through the second portion of the intermediate heat exchanger. When the automobile air-conditioning system is in at least one of a refrigerating mode and a heating mode, low-temperature and low-pressure refrigerants before returning to the compressor pass through the first portion of the intermediate heat exchanger, refrigerants before throttling pass through the second portion of the intermediate heat exchanger, the low-temperature and low-pressure refrigerants before returning to the compressor exchange heat with the refrigerants before throttling in the intermediate heat exchanger, the temperature of the refrigerants before throttling is further reduced, and the temperature of the low-temperature and low-pressure refrigerants before returning to the compressor is increased, so that the operating efficiency of a heat pump system is improved.
Owner:HANGZHOU SANHUA RES INST CO LTD

Air-conditioner precision air supply control method and system

The invention relates to an air-conditioner precision air supply control method. The method comprises the following steps of determining the range of the space with people, and working out the minimum left-right swing angle A0, the maximum left-right swing angle A1 and the minimum vertical swing angle A2 of the range of the space with people; controlling the left-right swing angle and the vertical swing angle of an air conditioner on the basis of the correlation between 0 and the difference value delta Tc between the environment temperature Te and the human body comfortable temperature Tc in the refrigeration mode and the correlation between the delta Tc and a human body uncomfortable temperature difference limit value Ta in the refrigeration mode; controlling the left-right swing angle and the vertical swing angle on the basis of the correlation between 0 and the delta Th and the correlation between the delta Th and a human body uncomfortable temperature difference limit value Th in the heating mode. The air conditioner precisely controls the left-right swing angle and the vertical swing angle within the range of the space with people according to the correlation between the delta Tc and 0, the correlation between the delta Tc and the Ta and the correlation between the environment temperature Te and the delta Th, and the air supply comfort is improved.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1

Intelligent regulation method for display screen backlight brightness and system for intelligent regulation method

The invention provides an intelligent regulation method for display screen backlight brightness, which is characterized by comprising the following steps of: presetting a reference table in which display screen backlight values and environment light brightness valves correspond; acquiring the current environment light brightness valve, and setting the display screen backlight value according to the reference table; when a user feels that the display screen backlight brightness is not proper, performing manual setting; and after confirmation is ended, updating the new display screen backlight value into the reference table and enabling the new display screen backlight value to correspond to the current environment light brightness valve. The invention also provides a system for implementing the method, which is characterized by comprising a photosensitive module, a matching module, a light control module, a manual regulation module and an updating module. According to the intelligent regulation method for the display screen backlight brightness, not only can the automatic regulation function of the display screen backlight brightness be utilized but also the personal requirements of different users can be met, and thereby, the man-machine running-in degree is increased, and the comfort requirements of the users on visual sensation can be met.
Owner:GUANGDONG BUBUGAO ELECTRONICS IND

Single runner two stage dehumidify air-conditioner driven by solar

The present invention relates to a solar-driven single rotating wheel two-level dehumidifying air conditioner, belonging to the refrigerating dehumidifying technology field, the present invention comprises a rotating wheel dehumidifying device and a solar energy device, wherein the rotating wheel dehumidifying device comprises a dehumidifying rotating wheel, a heater, a treatment air blower, a regeneration air blower, an electric motor, belts or gears, an evaporative cooler and a heat exchanger, wherein the electric motor connects with the dehumidifying rotating wheel through the belts or gears, and drives the dehumidifying rotating wheel to rotate; the heat exchanger is connected with the evaporative cooler, the evaporative cooler is connected with the treatment air blower; the dehumidifying rotating wheel is divided into four zones, namely a first level treatment zone, a first level regeneration zone, a second level treatment zone and a second level regeneration zone, the two level treatment zones are separated by the two level regeneration zones, the regeneration air blower is connected with the two level regeneration zones respectively, and the first and the second treatment zones of the dehumidifying rotating wheel are respectively connected with two level heat exchangers. The present invention can adjust temperature and humidity effectively, realize the miniaturization and the low cost of the heat-driven air-conditioning equipments, so the system is suitable for four seasons.
Owner:SHANGHAI JIAO TONG UNIV

Air conditioner and control method of automation running mode of air conditioner

The invention relates to an air conditioner and a control method of an automation running mode of the air conditioner. By detecting the indoor temperature and the outdoor temperature, the running state of the air conditioner is determined after the indoor temperature and the outdoor temperature are compared with a set temperature, the situation that the air conditioner runs in the heating state when the outdoor temperature is high and the air conditioner runs in the refrigerating state when the outdoor temperature is low can be completely avoided, and energy consumption can be reduced. Besides, when the indoor temperature is higher than the set temperature and the outdoor temperature is lower than the set temperature, the air feeding state or the refrigerating state is started according to the difference value between the indoor temperature and the set temperature; and when the indoor temperature is lower than the set temperature and the outdoor temperature is higher than the set temperature, the air feeding state or the heating state is started according to the difference value between the indoor temperature and the set temperature, and the comfort requirement of a user can be fast met.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD

Air quantity changeable air conditioner system air blast static pressure optimizing control method and apparatus

The invention discloses a variable air volume (VAV) air-conditioning system air-supply static pressure optimizing and controlling method and a device thereof. A static pressure setting optimizer inspects valve location signal, namely air valve opening, of a VAV terminal in every air-conditioning area, and a VAV terminal with largest valve location signal is selected from all the valve location signals. A static pressure setting value P is changed by the static pressure setting optimizer to lead the valve location of the VAV terminal to reach or get close to the largest opening. The rotating speed of a air-supply fan in the VAV air-conditioning system is controlled by a static pressure controller according to the difference of the statistic pressure setting value P set by the static pressure setting optimizer and the static pressure value gained by an air passage static pressure transducer, so that the static pressure of the air passages can reach the setting value P. The variable air volume (VAV) air-conditioning system air-supply static pressure optimizing and controlling method of the invention can not only guarantee the comfort requirement for every VAV air-conditioning system area in a heavy load, but also save the energy consumption of the air-supply fan in a relatively light load. The device for realizing the method is simple in structure and reliable in performance.
Owner:HUNAN UNIV

Double-temperature control system and method for passenger compartment and power battery of fuel cell vehicle

The invention discloses a double-temperature control system for a passenger compartment and a power battery of a fuel cell vehicle. An output end of an electric compressor is connected to a port A ofa four-way reversing valve; a port B, a forecabin heat exchange module, a one-way valve parallel connection section, a refrigerant parallel connection section and a port C of the four-way reversing valve are sequentially connected in series; a port D of the four-way reversing valve, a gas-liquid separator and an input end of the electric compressor are sequentially connected in series; the refrigerant parallel connection section comprises a first refrigerant branch and a second refrigerant branch which are arranged in parallel, a cooling liquid outlet of a battery heat exchanger is connected to a cooling liquid inlet of a power battery system, and a cooling liquid outlet of the power battery system, an expansion water tank, a water pump and a cooling liquid inlet of the battery heat exchanger are sequentially connected in series. On the premise that the system is simplified, independent control over the passenger compartment temperature and the power battery temperature is achieved, abattery pack temperature and the battery cooling inlet temperature are adopted as power battery temperature adjusting parameters, the influence of thermal delay is avoided, and the temperature controlprecision of the power battery is improved.
Owner:SHANGHAI OCEAN UNIV

Low temperature air supply air conditioner device for naval vessels and control method thereof

The invention relates to a low temperature air supply air conditioner device for naval vessels and a control method thereof. The low temperature air supply air conditioner device comprises an air conditioner, a fresh and return air mixing box which is provided with a primary return air port and a fresh air port, and a PLC control system. The primary return air port is provided with a primary return air valve and a first temperature and humidity sensor; the fresh air is provided with a fresh air valve; the air conditioner is provided wit a secondary return air port; the secondary return air port is provided with a secondary return air valve and a second temperature and humidity sensor; an exhaust box of the air conditioner is provided with a third temperature and humidity sensor; and the first return air valve, the second return air valve, the first temperature and humidity sensor, the second temperature and humidity sensor, the third temperature and humidity sensor and the fresh air valve are all connected with the PLC control system. In the invention, the shell of the air conditioner is provided with a primary air port, the secondary return air port and the fresh air port; a plurality of temperature and humidity sensors are matched with a plurality of air valves to ensure the low temperature air supplying and the temperature control accuracy, exactly control the water supply temperature and effectively control air supply condensation. The device is simple and compact in structure, high in service accuracy of low temperature air, and high in safety. The device is fit for naval vessels and submarines and the like.
Owner:JIANGSU JOSUN AIR CONDITIONER

Air-conditioner, air-conditioner control method and air-conditioner control device

The invention discloses an air-conditioner, an air-conditioner control method and an air-conditioner control device. The air-conditioner control method comprises that a time value of first starting time and starting temperature of the first start-up time of the air-conditioner are acquired, wherein the first starting time is preset starting time of the air-conditioner on the first day, a temperature change rate of the air-conditioner in a preset time period before the first starting time is acquired, indoor temperature at preset time on the second day is detected, wherein the time value of the preset time is smaller than the time value of the first starting time, second starting time of the air-conditioner is determined according to the temperature change rate, the starting temperature and the indoor temperature at the preset time, wherein the second starting time is the automatic starting time of the air-conditioner on the second day, and the air-conditioner is controlled to be started at the second starting time on the second day. According to the air-conditioner, the air-conditioner control method and the air-conditioner control device, starting time can be adjusted according to historical starting information and actual temperature change conditions of the air-conditioner, and thus the demand of comfortableness of users can be better met.
Owner:GREE ELECTRIC APPLIANCES INC

Hybrid refrigeration-turning wheel dehumidification device

The invention relates to a hybrid refrigeration-turning wheel dehumidification device. The advantages of a refrigeration system and a turning wheel are combined; the waste heat of a condenser is fully utilized to provide regenerated heat for the turning wheel; an auxiliary evaporator and an electric heating device are utilized to realize adjusting the air temperature so as to meet the comfort requirement; indoor humid air is humidified for the first step through a main evaporator after being primarily filtered, enters the turning wheel so as to be further humidified, and is then fed into the auxiliary evaporator for being further cooled to be discharged indoors or fed into the electric heating device for being heated to be discharged indoors according to the actual air supply temperature requirement of a user; and the waste heat of the condenser is fully utilized during a regeneration process, so that the heat required to be provided by the electric heating device is effectively reduced. The hybrid refrigeration-turning wheel dehumidification device provided by the invention provides several operating modes such as hybrid internal and external circulation, and when the air humidity is larger, dried air is utilized to directly and thoroughly desorb the turning wheel, so that the moisture absorption performance is ensured. The hybrid refrigeration-turning wheel dehumidification device provided by the invention has the advantages of high efficiency, low consumption, compact structure, good dehumidifying effect, safety, reliability, capability of stably working for a long time, and the like.
Owner:洞口县万美复合材料有限公司

Fussily self-adaptive PID temperature and humidity control system and method based on improved PSO (Particle Swarm Optimization) algorithm

The invention discloses a fussily self-adaptive PID temperature and humidity control method based on an improved PSO (Particle Swarm Optimization) algorithm. The control method comprises the following steps: (S01) obtaining a collection quantity deviation and the variance ratio of the collection quantity deviation; (S02) carrying out fuzzing treatment on the collection quantity deviation and the variance ratio of the collection quantity deviation; (S03) performing fuzzing inference and defuzzing; (S04) iteratively obtaining the original values of PID parameters based on the improved PSO algorithm; and (S05) according to the optimized fuzzily self-adaptive PID parameters obtained in the step S04, carrying out fuzzily self-adaptive PID control on a fan frequency transformer, so as to control the frequency of the fan frequency transformer, the openness degrees of a cooling water three-way valve and a humidifying valve. Based on the PSO algorithm, the self-factors of particles and social factors are introduced, so that optimal PID original parameter values can be rapidly and accurately found; and by combining the fuzzy control and traditional PID control, the indoor temperature and humidity can be well monitored and optimized online in real time through a control system.
Owner:HOHAI UNIV CHANGZHOU

Hidden sealed door for railway vehicle

The invention discloses a hidden sealed door for a railway vehicle. The hidden sealed door comprises a driving mechanism, a bearing mechanism, door leaves, a sealing frame and a doorsill, wherein the driving mechanism comprises a lead screw nut mechanism; the bearing mechanism comprises bearing trolleys, and two upper guide rails and two lower guide wheels which are used for performing guidance for the translation, sliding and plugging movement of the door leaves; nuts of the lead screw nut mechanism are connected with each bearing trolley through a hinge mechanism; and when opened, the doorsill is located within the wall body of the railway vehicle. According to the hidden sealing door for the railway vehicle, provided by the invention, jiggle sliding and plugging movement is additionally arranged based on the original hidden translation door; adhesive tape sealing is adopted to replace the brush sealing structure, so that the sealing effect of the railway vehicle door system is improved; meanwhile, electrically controlled door is used, and the acoustic and thermal insulation property is good, so that the comfort requirement of a passenger can be satisfied; and the structure is simple, the sliding and plugging movement can be achieved without an air supply, and the time required for shutting the door is short.
Owner:NANJING KANGNI MECHANICAL & ELECTRICAL

Heat pump air conditioning system and control method thereof and automobile

The invention provides a heat pump air conditioning system and a control method thereof and an automobile. The heat pump air conditioning system comprises a compressor, an automobile exterior heat exchanger, a first automobile interior heat exchanger and a second automobile interior heat exchanger; the first automobile interior heat exchanger can absorb heat and refrigerate the interior of the automobile; the second automobile interior heat exchanger can release heat from the interior of the automobile and can heat the interior of the automobile; the heat pump air conditioning system further comprises a cooling loop; a battery pack and intermediate heat exchanger are arranged on the cooling loop; the intermediate heat exchanger can be arranged at the two ends of the first automobile interior heat exchanger in parallel; and the intermediate heat exchanger can also be arranged on a pipeline of the second automobile interior heat exchanger in series. Compared with a mode of using PTC electric heating to heat the battery pack, the heat pump air conditioning system has the advantages that the integrated energy efficiency ratio is higher; the heat pump air conditioning system and a cooling liquid circulation system in a heat management system can realize a function of cooling the battery pack while heating a passenger compartment by controlling a solenoid valve; and the heat pump airconditioning system in the heat management system can realize a passenger compartment multi-temperature zone independent temperature control function by controlling the solenoid valve.
Owner:GREE ELECTRIC APPLIANCES INC

Multi-split air conditioning and floor heating system and control method thereof

The embodiment of the invention provides a multi-split air conditioning and floor heating system and a control method thereof, and relates to the technical field of air conditioners. According to the multi-split air conditioning and floor heating system and the control method thereof, heating effect of the multi-split air conditioning and floor heating system can be improved, and user experience is improved. The control method comprises the following steps: acquiring a current opening degree of a throttling element of a floor heating water module, and acquiring a difference value between set temperature and return air temperature of each current heating air conditioner indoor unit; acquiring a temperature difference characterization parameter according to the multiple difference values; acquiring an opening degree adjusting amount of the throttling element according to the corresponding relation between the temperature difference characterization parameter and the opening degree adjusting amount; acquiring the sum value of the current opening degree and the opening degree adjusting amount, and using the sum value as an updated opening degree; controlling the throttling element to perform throttling based on the updated opening degree; the current opening degree is the updated opening degree; taking a period from acquiring the difference value between the set temperature and the return air temperature of each current heating air conditioner indoor unit to controlling the throttling element to perform throttling based on the updated opening degree as a first period; and executing the first period after a preset duration. The multi-split air conditioning and floor heating system and the control method thereof is used for an air conditioner.
Owner:QINGDAO HISENSE HITACHI AIR CONDITIONING SYST

Temperature control method for air-conditioning system in metro train based on passenger capacity

The invention relates to a technology for controlling the temperature in a metro compartment with an air-conditioning system, in particular to a temperature control method for the air-conditioning system in a metro train based on the passenger capacity. A metro exterior environment temperature signal and an interior passenger capacity signal are collected and guided into a temperature control model based on the passenger capacity to obtain a metro compartment control temperature; at the same time, an actual metro compartment temperature signal is collected, and when the actual temperature is not equal to the control temperature, the air-conditioning system in the metro train is used for automatically adjusting the actual compartment temperature to reach the control temperature; a temperature sensing device is mounted in a position where the height of a metro armrest is 1.1-1.3 m, and as the armrest is generally of a hollow design, the temperature sensing device is attractive and difficult to discover and can be prevented from being touched by a passenger; and the control temperature meets the comfort requirement of the passenger, and the temperature at the 1.1-1.3 m part of the metro compartment can accurately reflect the actual temperature of the passenger range.
Owner:TONGJI UNIV

Convective circulation constant temperature and humidity purification air interchange system

The invention discloses a convective circulation constant temperature and humidity purification air interchange system which comprises a main control unit, and a power supply system, a temperature detection unit, a humidity detection unit, a fan system and an air regulating unit which are respectively connected with the main control unit. The convective circulation constant temperature and humidity purification air interchange system is mainly supplied with power by using a solar cell pack assisted by a storage battery and an external power supply; according to information detected by the temperature sensor, the humidity sensor, a switch detection pin, a voltage and current detection circuit and a touch control system and set parameters, centralized control and centralized information processing are carried out by the main control unit so as to control energy acquisition and intelligently regulate operation states of a charge circuit, the fan system, a heater, a humidifier and a photocatalyst anion oxygen bar, thus temperature, humidity and oxygen content of an indoor air environment are controlled, the indoor air environment is improved and meets requirement for human body comfort, and purposes of saving energy, reducing emission and protecting environment are achieved.
Owner:SHANGHAI XILI ELECTRONICS TECH CO LTD

Control method and system of electric vehicle air-conditioning compressor

The invention discloses a control method and system of an electric vehicle air-conditioning compressor. The control method comprises the steps of controlling operation of the compressor at the first rotation speed after an air conditioner is started; obtaining the temperature set by a user, in-vehicle temperature, out-vehicle temperature, solar radiation intensity, evaporator temperature and compressor rotation speed at intervals of a first long sampling period; judging whether the parameters are within a corresponding normal range or not; indicating that the evaporator temperature is larger than an evaporator temperature threshold value if the parameters are within the corresponding normal range; confirming optimal rotation speed according to the parameters and enabling the compressor to run at the optimal rotation speed if the parameters are not within the corresponding normal range. The control method takes the parameters into consideration to control the rotation speed of the compressor, enables finally-confirmed target rotation speed of the compressor to be reasonable and reduces the fluctuation of the in-vehicle temperature and energy consumption of the electric vehicle to some extent. The long sampling period enables the rotation speed of the compressor to be not frequent and further inhibits the fluctuation of the in-vehicle temperature. The driving comfort requirement can be met to the most extent.
Owner:ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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