82results about How to "Guaranteed thermal comfort" patented technology

Disclosed is a variable refrigerant flow air conditioning system. The variable refrigerant flow air conditioning system is mainly composed of an outdoor unit, an indoor unit and a controller. The outdoor unit is formed by parallel connection of a first outdoor unit and a second outdoor unit. When one of the outdoor units needs defrosting operation, refrigerating fluid of a heating operating loop and refrigerating fluid of a defrosting operating loop are separated through opening and closing of an electromagnetic valve and an electronic expansion valve, and therefore heating and defrosting can not affect each other. Meanwhile, the refrigerating fluid circulation amounts in the heating loop and the defrosting loop are adjusted through control of the electromagnetic valve and the electronic expansion valve, the heating amount of the indoor unit is guaranteed through improvement of the frequency of a compressor corresponding to a heating operating system, and therefore the heat comfort degree of the indoor unit can be guaranteed. According to the variable refrigerant flow air conditioning system, normal heating of the indoor unit in the process of the defrosting operation can be guaranteed; and besides, in the process of entering and exiting from the defrosting process, the compressor does not need to be shut down, a four-way valve does not need to be reversed, and therefore defrosting operation time is greatly shortened, and comfortableness of an indoor environment is effectively improved.

The invention discloses an image information fused concentrated air conditioner thermal comfort degree PMV control method. Through the method, the dynamic environment concentrated air conditioner thermal comfort degree is controlled accurately so as to solve the problem that a PMV model cannot well describe a dynamic real environment under a conventional static environment. The method comprises the steps of conducting analysis processing on people under an indoor environment though the computer vision technology to acquire load change and fresh air volume requirement change caused by change ofthe number of people and the clothing condition of the people in a building space, establishing a PMV model under the dynamic environment based on the factors and applying the PMV model to control over an air conditioner to quickly meet the requirements of the people in the indoor environment for the thermal comfort degree. According to the control method based on the thermal comfort degree, parameters of the model are adjusted to enable the indoor environment to be kept in a comfortable environment which can be accepted by the indoor people all the time; and moreover, on the premise of guaranteeing the thermal comfort degree of human bodies, the running cost is saved by controlling the running mode of the air conditioner.

The invention provides a heat pump air-conditioning system and a control method thereof. The heat pump air-conditioning system comprises a compressor (1), at least one outdoor heat exchangers, a firstindoor heat exchanger (15), a second indoor heat exchanger (16), and at least one by-pass lines arranged between the compressor (1) and at least one outdoor heat exchangers; the effluent air of an air cylinder of the compressor (1) is bypassed into at least one outer heat exchangers through the by-pass lines, so that the defrosting of at least one outdoor heat exchangers can be carried out. According to the heat pump air-conditioning system and the control method thereof, when the outdoor heat exchanger is defrosted, the indoor heat exchanger still has some hot air passing through, thereby preventing cold air from entering the room.

The invention relates to cooling costume for distribution network hot-line work, which is characterized in that a phase-change material bag and a circular cooling water pipe are arranged in a mesh vest; the circular cooling water pipe is clamped between the phase-change material bag and the mesh vest; the circular cooling water pipe is provided with a cooling water pipe joint on the edge of the mesh vest; the cooling water pipe joint is connected to a circular cooling water joint on a cool storage tank through a connecting pipe; the cool storage tank comprises an ice storage box, a control module capable of controlling the circulation of cooling water, a water pump and a cell; the opening of the ice storage box is connected with the water pump; the water pump is connected to the circular cooling water joint; and the control end of the water pump is connected with the control module. According to the invention, the cooling costume is a device for reducing temperature in insulting costume when distribution network hot-line workers carry out maintenance operation at high-temperature/humidity weather; ice is used as cool storage material; circular cooling water is made as refrigeration source; the cold air of the circular cooling water and heat quantity in the insulating costume are absorbed by phase-change material; thus, heat comfort in the insulating costume is ensured.

The invention discloses an airport terminal tail end intelligent control system, method, medium and equipment. The system comprises a local server, a control module, an adjusting module, a sensor module and an image acquisition module. The image acquisition module is used for acquiring image information. The sensor module is used for measuring the indoor temperature and the air speed of a fresh air opening. The adjusting module is used for controlling the chilled water flow and the fresh air amount, and the frequency of a motor is controlled to adjust the air supply quantity. The local serveris used for flight information online inquiry and acquisition, cooling area marking, passenger image target detection and human flow statistics and parameter calculation and storage, and transmits control strategies to the control module. The control module receives data from the sensor module, communicates with a server, and dynamically adjusts the adjusting module. By means of the airport terminal tail end intelligent control system, method, medium and equipment, dynamic airport flight information and human flow information are introduced to tail end air conditioner equipment control, so that air conditioner energy saving optimization and control are ensured on the premise that the heat comfort of human bodies is ensured, and area-by-area intelligent dynamic control of airport terminal tail end air conditioner equipment is realized.

The invention discloses a control method and device of an air conditioner, a storage medium and the air conditioner. The method includes the steps that the frosting amount of an outdoor heat exchangerof the air conditioner is determined, wherein the frosting amount of the outdoor heat exchanger comprises the frost layer thickness of the outdoor heat exchanger; if the frost layer thickness of theoutdoor heat exchanger belongs to a set defrosting frost layer thickness range, the air conditioner is controlled to be switched into a defrosting manner from a heating manner; if the frost layer thickness of the outdoor heat exchanger belongs to a set non-defrosting frost layer thickness range, the heat comfort state of an indoor environment of the air conditioner is determined; and the air conditioner is controlled to continue to be subjected to heating operation in the heating manner according to the heat comfort state of the indoor environment or be switched into the defrosting manner fromthe heating manner. By means of the scheme, the problems that whether defrosting is carried out or not is judged according to the temperature of the outdoor heat exchanger or the difference between the temperature of the outdoor heat exchanger and the temperature of an outdoor environment, when defrosting exists, the indoor temperature drop is large, and therefore the defrosting heat comfort is poor can be solved, and the effect of improving the defrosting heat comfort is achieved.

The invention discloses an air conditioner control method and device, a storage medium and an air conditioner. The method comprises the steps of determining a heat comfort state of an indoor environment of an air conditioner, and determining a frosting situation of an outdoor heat exchanger of the air conditioner; and according to the heat comfort state of the indoor environment and/or the frosting situation of the outdoor heat exchanger, determining a current operation mode of the air conditioner, and controlling the air conditioner to operate according to the current operation mode, whereinthe step of controlling the air conditioner to operate according to the current operation mode comprises: controlling the air conditioner to continuous operate at a heating mode, and controlling the air conditioner to reduce the output heat so as to operate, or controlling the air conditioner to operate at a defrosting mode, or controlling the air conditioner to stop or reduce frequency so as to operate. According to the scheme provided by the invention, the problem that since whether the air conditioner enters the defrosting mode or not is judged according to the temperature of the outdoor heat exchanger or a difference value between the temperature of the outdoor heat exchanger and the outdoor environment temperature, the heat comfort experience of a user is affected due to big indoor temperature drop during defrosting can be solved, and an effect on improving the heat comfort experience of the user during defrosting is achieved.

The invention provides an air conditioner and a constant-temperature dehumidifying control method thereof. The air conditioner comprises an outdoor unit, an indoor unit and a control mechanism, wherein the outdoor unit comprises an outdoor fan as well as a compressor, an outdoor heat exchanger and an outdoor throttle mechanism which are sequentially connected; the indoor unit comprises an indoor fan, an indoor throttle mechanism, an indoor heat exchanger and a multi-way valve; the indoor heat exchanger comprises at least two heat exchange parts; ends of the at least two heat exchange parts areseparately connected to the multi-path valve, and the other ends of the at least two heat exchange parts are connected to the outdoor throttle mechanism through the indoor throttle mechanism or are connected to the outdoor throttle mechanism directly; the multi-way valve is in communication, so that at least two heat exchange parts define a parallel-connection structure; or at least one heat exchange part connected to the indoor throttle mechanism is in parallel connection to the outdoor heat exchanger. The air conditioner can control the indoor temperature and humidity at the same time, andguarantees that the temperature of indoor environment is not affected while effective dehumidifying is guaranteed.

The invention discloses an intelligent air-conditioner fault reminding system and a reminding method for automobiles, and belongs to the technical field of automobile manufacturing. The system comprises a fault information acquisition module, wherein the fault information acquisition module is connected with a plurality of sensors and a plurality of executors, the fault information acquisition module is connected with a fault grade classification module through a fault code storage module, and the fault grade classification module is connected with a meter; a CAN bus connected with the fault code storage module is provided with the diagnosis interface which is connected with a diagnosis instrument in an insertion manner. The method comprises the following steps: acquiring voltage signals of the sensors and the executors by the fault information acquisition module in real time; analyzing and judging the voltage signals and distributing the voltage signals to the fault grade classification module through the fault code storage module and then performing classification and displaying on the meter; reading and displaying fault information on the fault code storage module through the diagnosis instrument for car repairing. According to the intelligent air-conditioner fault reminding system and the reminding method for automobiles disclosed by the invention, the problem that minor faults of an existing automotive intelligent air-conditioner are difficult to be found out, severe faults cannot be found out in time and fault sources are difficult to search can be solved.

The invention relates to an electric vehicle air conditioning system intelligent control method based on a human body thermal comfort theory and fuzzy PID control, and belongs to the technical field of full vehicle thermal management. The method comprises the following steps that, S1, an automobile air conditioning system and passenger cabin coupling thermal model is established, and based on thecoupling thermal model, a fuzzy PID controller is established by taking the temperature of the automobile passenger cabin as a control target and taking the rotating speed of an electric compressor asa control variable; S2, an estimator with respect to a current PMV value in the passenger cabin is established based on the human body thermal comfort theory; S3, a memory storage device with respectto the driver temperature adjustment is established, and an average PMV value preferred by a driver recently is calculated; and S4, the real-time control target temperature T<comfort> is calculated,and the temperature of the passenger cabin is adjusted by using the established fuzzy PID controller so as to realize real-time self-adjustment of the comfort temperature of the passenger cabin. The method is simple and effective, short in control time and strong in robustness, and is suitable for being used in a real vehicle air conditioner control system.

The invention discloses an energy-storage type fluorine pump heat pipe system and a control method thereof. The energy-storage type fluorine pump heat pipe system comprises a first indoor unit, a second indoor unit, an outdoor unit, a liquid storage tank, a fluorine pump, an electric two-way valve, an electric three-way valve, a liquid pipe branch circuit, an air pipe branch circuit and a controller. According to the control method of the energy-storage type fluorine pump heat pipe system, starting and stopping of the fluorine pump, the electric two-way valve, a three-way reversing valve, the electric three-way valve and a fan are switched to achieve switching of multiple working conditions, the temperature and humidity requirement of industrial buildings can be ensured, and the thermal comfort requirement of commercial buildings can also be ensured. According to the energy-storage type fluorine pump heat pipe system and the control method thereof, a natural cold source and industrial waste heat are fully utilized, the energy utilization efficiency and the indoor comfort can be effectively improved, the night trough electricity price is utilized, and the economical operation cost is reduced.

The invention comprises a cabinet, in which is disposed an air duct with an air intake at one end and an air blowing port at the other end. In the air duct is disposed an induction room with an opening via a baffle and on the side of the cabinet is set an induction port in communication with the induction room. In the air duct between the induction room and the air intake is disposed a throttle, one end of which is connected with a side wall of the air duct and the other end is located between the outside of the induction room and the inner wall of the air duct. After the primary air enters into the air intake, the throttle is used for changing its flow velocity and flow rate to produce a negative pressure at the opening of the induction room for inducing the room air into the induction room through the induction port to mix with the primary air. The mixed air flow is blown out through the air blowing port.

The invention discloses an energy-saving control method of a centralized heating system. An actual combustion heat sequence of each terminal equipment in the centralized heating system is firstly obtained; then, predicted consumption heat of each terminal equipment in the next unit time period is calculated according to the actual consumption heat sequence; and finally, a water supply flow and a water supply/return temperature of a heat exchange station to the centralized heating system are controlled according to the predicted consumption heat. The energy-saving control method of the centralized heating system not only can effectively reduce the operation energy consumption of the centralized heating system, but also can guarantee the heat use comfort of terminal users.

The invention discloses an air conditioner without stopping defrosting and a control method of the air conditioner. The air conditioner comprises an indoor unit and an outdoor unit, wherein the indoorunit comprises an indoor heat exchanger; the outdoor unit comprises a compressor, a four-way reversing valve and a plurality of groups of outdoor heat exchange systems; and each group of outdoor heatexchange systems comprises a throttling mechanism, an outdoor heat exchanger and a three-way valve, and the throttling mechanism, the outdoor heat exchanger and the three-way valve are sequentially connected. When the outdoor heat exchanger needs to be defrosted in the heating operation process of the air conditioner, one group of outdoor heat exchange system can be controlled to be in a defrosting state, and other groups of outdoor heat exchange systems are in a heating state so as to ensure that the indoor heat exchanger can still perform heating operation in the outdoor heat exchanger defrosting process and to guarantee the thermal comfort of an air conditioner using space.

The invention provides a multi-split air conditioner defrosting method and device, a multi-split air conditioner system and a readable storage medium. The method comprises the steps: judging the on-off state of indoor units, wherein the on-off state comprises shutdown; obtaining the capacity volumes of the indoor units and an outdoor unit after the state is judged, calculating the sum of the capacity volumes of the shutdown indoor units, and calculating the ratio of the sum of the capacity volumes to the capacity volume of the outdoor unit; and controlling the indoor units to enter corresponding defrosting modes according to the ratio. According to the multi-split air conditioner defrosting method and device, the multi-split air conditioner system and the readable storage medium, the state of each indoor unit of the multi-split air conditioner system can be analyzed, the actual use condition of the multi-split air conditioner system is represented through the capacity volume ratio related to the state of each indoor unit, and defrosting control is carried out according to the actual operation condition so that the defrosting control can be fit with the actual use condition of the multi-split air conditioner system, the indoor temperature is kept stable as much as possible during defrosting, and the thermal comfort experience of a user is guaranteed.

The invention belongs to the technical field of heat supply room temperature control, provides a heat supply room temperature control method based on model prediction control, and adopts the model prediction control method to regulate and control the heat supply room temperature. Firstly, the room temperature of a user side is predicted through a room model, then the predicted room temperature, the actually measured room temperature and the set temperature are input into a rolling optimization model, rolling optimization is carried out in combination with current water supply and return parameters, meteorological parameters, heat supply balance and other conditions, and an optimal control parameter sequence capable of meeting the room temperature requirement is determined; and the first optimization parameter is used for the controlled object, so that the heat dissipating capacity of the heat dissipating tail end is controlled, and the set indoor temperature is further gradually approached. According to the control strategy, the set temperature can be quickly approached, overshoot and oscillation rarely occur, heat supply energy consumption can be further reduced, indoor heat comfort is improved, and carbon emission of a heat supply system is reduced.

The invention relates to a thermal management system for a motor vehicle interior, said system comprising an air-conditioning device that includes at least one outlet for thermally treated air, the air-conditioning device including in particular an HVAC unit, and the system further comprising a control unit designed to: acquire first data representing the amount of clothing worn by a passenger inthe vehicle interior (Clo) and/or second data representing the passenger's metabolic activity (MET); acquire a parameter that is related to a state of thermal comfort and can have at least two extremevalues, one of the values being associated with a calm state and the other value being associated with a dynamic state; manage the air-conditioning device to supply treated air at a flow rate that isdependent on the aforementioned parameter, said flow rate being lower when the parameter is associated with a calm state and higher when the parameter is associated with a dynamic state while the amount of clothing and/or the metabolic activity is the same in either case.

The invention discloses a bed capable of achieving on-bed patient bathing. The bed comprises a bed frame and is characterized in that the top of the bed frame is sequentially provide with mesh cloth and a bed board, one end of the bed board is rotatably connected with the bed frame, and the bed board is horizontal when the other end of the bed board is connected with the bed frame through a fixingbolt; a water spraying rod support is slidably arranged on the bed frame, a water spraying rod is arranged at the top of the water spraying rod support and connected with a water pump arranged at thebottom of the bed frame, and the water pump is connected with a hot water tank or a water heater; a waterproof curtain is arranged on the bed frame between the mesh cloth and the bed board, and the waterproof curtain is in slide fit with a waterproof curtain slide groove through sliders; a drain pipe is arranged below the waterproof curtain and extends into a sewage tank at the bottom of the bedframe. The bed capable of achieving on-bed patient bathing is simple in structure and capable of conveniently achieving on-bed patient bathing.