Abstract: Provided are an air-conditioning system, a data transmission method and apparatus, and a non-transitory computer storage medium. A centralized air-conditioning controller, at least one air conditioner, and at least one environmental information collection module are provided.

Abstract: A multi-connection air conditioning system and a method for calculating a heat exchange amount thereof includes a plurality of indoor units, and the method includes: obtaining a total heat exchange amount of the multi-connection air conditioning system; obtaining inlet air temperature of each indoor unit; obtaining a two-phase saturation temperature of each indoor unit; obtaining an air supply volume of each indoor unit; obtaining a heat exchange area of each indoor unit; and calculating a heat exchange amount of each indoor unit according to the total heat exchange amount of the multi-connection air conditioning system, the inlet air temperature of each indoor unit, the two-phase saturation temperature of each indoor unit, the air supply volume of each indoor unit, and the heat exchange area of each indoor unit. Thus the user can monitor the heat exchange amount of each indoor unit so that they can be managed with separate targets.

Abstract: An air conditioner and control method therefor to solve the problem that an existing air conditioner stops operation upon detection of an operation parameter abnormality situation, causing the user experience to be significantly influenced. For this reason, the air conditioner includes a compressor. The control method includes: obtaining an outdoor ambient temperature; determining a first preset time period according to the outdoor ambient temperature; obtaining operation parameters of the compressor after the first preset time period; and selectively stopping operation of the air conditioner according to the operation parameters of the compressor, so that the air conditioner can be automatically repaired within the first preset time period. If the air conditioner can be automatically repaired within the first preset time period, the air conditioner does not need to stop operation, so as to guarantee a continuous heat exchange capability of the air conditioner and not to cause an operation failure.

Abstract: A cable holder, a magnetic ring fixing device, and an air conditioner outdoor unit. The cable holder includes a holder body; cable grooves running through a side of the holder body are provided in the holder body; two side groove walls of each cable groove are respectively connected to first clamping arms towards the bottom of the groove at an opening; the distance between the two first clamping arms gradually decreases from the opening of each cable groove to the bottom of the groove; a fixing groove for matching a cable is provided at the bottom of each cable groove. Thus, cables can be conveniently placed in the cable grooves, and the cables cannot easily pass out of the cable grooves; moreover, by arranging the fixing grooves, the cables can be fixed and limited, offset movement of the cables can be reduced, and an anti-falling effect can be better realized.

Abstract: The present invention discloses a method and an apparatus for controlling an air conditioner, and a computer storage medium, and relates to the technical field of intelligent household appliances. The method includes acquiring a current physical characteristic parameter of an air conditioner user in a current sampling timeframe; and adjusting either or both of a current set temperature and a current compressor frequency of the air conditioner according to the current physical characteristic parameter and current energy consumption of the air conditioner when the current physical characteristic parameter falls within a set range of parameters in sleep. Therefore, energy conservation and a comfortable user experience are compatible, thereby providing more functions for the control of the air conditioner in the sleep mode.

Abstract: An air conditioner, including an outdoor unit and a control system, an air outlet being provided at the top of a box body of the outdoor unit. The air conditioner further includes a snow hood in communication with the air outlet, a rotation driving device connected to the snow hood, and a wind direction detection device provided on the box body. The snow hood is rotatably provided on the top of the box body, and the rotation driving device and the wind direction detection device both communicate with the control system.

Abstract: An air conditioning system, which includes an indoor heat exchanger, an outdoor heat exchanger, a compressor, a throttling device, a four-way valve and an ejection device; the indoor heat exchanger, the outdoor heat exchanger, the compressor and the throttling device form a closed-loop refrigerant circulation circuit, the four-way valve is configured to switch the air conditioning system between a cooling mode and a heating mode, and the ejection device is configured to be capable of being connected to a discharge side of the compressor when the air conditioning system executes the heating mode, so as to improve a heating effect of the air conditioning system. This system has a lower cost and a simple structure for easier maintenance, and the energy efficiency ratio is improved, so that the heating effect of the air conditioning system can be improved when the air conditioning system executes the heating mode.

Abstract: A multi-connection air conditioning system and a method for calculating a heat exchange amount thereof includes a plurality of indoor units, and the method includes: obtaining a total heat exchange amount of the multi-connection air conditioning system; obtaining inlet air temperature of each indoor unit; obtaining a two-phase saturation temperature of each indoor unit; obtaining an air supply volume of each indoor unit; obtaining a heat exchange area of each indoor unit; and calculating a heat exchange amount of each indoor unit according to the total heat exchange amount of the multi-connection air conditioning system, the inlet air temperature of each indoor unit, the two-phase saturation temperature of each indoor unit, the air supply volume of each indoor unit, and the heat exchange area of each indoor unit. Thus the user can monitor the heat exchange amount of each indoor unit so that they can be managed with separate targets.

Abstract: The present application relates to a method for communication detection. The method comprises: determining a length level of a communication link according to a time length of pulse data during transmission of data over the communication link, and determining a detection time point according to the length level of the communication link. The length level of the communication link is determined according to the time length of pulse data during transmission of data over the communication link, and then the detection time point of the data is confirmed, thereby realizing dynamic determination of the detection time point of data according to the time length of the pulse data, and data waveform attenuation caused by an excessively long distance is avoided by means of automatic adjustment of the detection time point, so that the correctness of data detection is ensured, and the stability of long-distance homebus communication is improved.

Abstract: A method of judging lack-of-freon in an air conditioner and an air conditioner control method. The control method includes: acquiring outflow air temperatures at the first air outlet and the second air outlet, and calculating a temperature difference; comparing the temperature difference with a preset temperature difference threshold; and adjusting an opening degree of the expansion valve accordingly. In the method, the opening degree of the expansion valve can be automatically adjusted according to a result of temperature comparison to compensate for the flow rate of freon, so as to improve the cooling or heating efficiency of the air conditioning system and realize the adaptive adjustment of the air conditioner, thereby ensuring the cooling or heating efficiency of the system even if the system lacks freon to a slight extent and effectively reducing energy consumption. The judging method has a higher accuracy of judging result, and is easier to implement.

Abstract: A refrigeration system, comprising an evaporator, a condenser, a throttling device, a compressor, an economizer and an ejector, these devices together form a closed-loop refrigerant circulation loop, the ejector being connected to the economizer, and the ejector being provided on an exhaust side of the compressor. The structure enables the refrigeration system to realize the dual-stage boost, does not affect the stability of the compressor due to the instability of the airflow of the ejector, and does not affect the oil property of the compressor, thereby ensuring the operation safety of the compressor.

Abstract: A relay device and a multi-split control system that achieve reliable communication between an outdoor air conditioning unit and multiple indoor units under the condition that the length of a communication bus is limited. The system expands the communication distance by a cascade path formed by a plurality of relay devices. The cascade path transmits control signals sent by a master control device/a specific slave control device (i.e. a slave control device communicating with the master control device or certain relay device) to corresponding slave control devices one by one, and the corresponding slave control devices transmit the signals to the master control device/specific slave control device according to a response signal fed back by the control signal, where the relay devices may respectively communicate with a source node device and a destination node device on the basis of the master-slave type communication mode.

Abstract: An oil return control method for a multi-split air conditioner and a system accomplishing the same includes: calculating an average exhaust pressure within an oil return period Pd_AVG; determining whether the average exhaust pressure Pd_AVG?the set threshold Pdthreshold; if Pd_AVG?Pdthreshold, maintaining the multi-split air conditioner working in heating mode to ensure an acceptable oil return performance without affecting the air conditioning effect of indoor unit in heating mode; if Pd_AVG<Pdthreshold, switching the multi-split air conditioner to cooling mode, stopping a fan within those power-on indoor units and entering into a cooling oil return process and switching the multi-split air conditioner back to heating mode until the cooling oil return process ends.

Abstract: The present disclosure discloses an indoor unit of an air conditioner and an air conditioner. The indoor unit of the air conditioner includes an indoor unit housing, a heat exchanger, a conduit and one or more storage parts provided outside the indoor unit housing and/or inside the indoor unit housing, wherein one end of the conduit is connected to a liquid separator of the heat exchanger, the other end of the conduit is connected to a gas collecting pipe of the heat exchanger, and the conduit is used for heat exchange with the one or more storage parts.

Abstract: An air conditioning heat dissipation structure control method and a system includes the steps obtaining a real-time temperature Te of the heat generating component; if Te>Ted, opening the solenoid valve SV2 and adjusting the electronic expansion valve 4 to a preset initial opening degree; obtaining an update real-time temperature Te of the heat generating component after a setting time period; if the update real-time temperature Te>Tmax, performing the following steps every set period of time, obtaining a refrigerant temperature refrigerant temperature Tin at the inlet end of the refrigerant heat dissipation pipe and a refrigerant temperature Tout at the outlet end of the refrigerant heat dissipation pipe; calculating a real-time temperature difference ?Treal-time of the inlet end temperature Tin and the outlet end temperature Tout, wherein ?Treal-time=Tout?Tin, obtaining a preset target temperature difference ?Ttarget and calculating a deviation ?Tdeviation, ?Tdeviation=?Treal-time??Ttarget; calculatin

Abstract: A method and device are for adjusting air volume of an air conditioner are provided, that use a computer readable storage medium. The air conditioner includes an indoor unit with a vase-shaped housing, wherein the vase-shaped housing includes a bottle mouth and where an air outlet of the indoor unit is provided at the bottle mouth of the vase-shaped housing. A liftable cover plate is provided at the air outlet of the indoor unit. The method includes obtaining specified air volume, obtaining curved surface features of an inner wall at the bottle mouth of the vase-shaped housing and cover plate specifications of the cover plate, and adjusting an actual height of the cover plate according to the specified air volume, the curved surface features, and the cover plate specifications.

Abstract: A control method for an air conditioner comprising a compressor and an outdoor unit, wherein the control method includes: obtaining a suction temperature of the outdoor unit; and selectively adjusting the frequency of the compressor according to the suction temperature of the outdoor unit.

Abstract: Devices are provided for field weakening control of a compressor, including the compressor and a main circuit unit providing power for the compressor. The devices include a compressor rotational speed obtaining unit, and a control unit that compares the rotational speed ? of the compressor with a rotational speed threshold ?1 of the compressor, and controls the main circuit unit according to comparison results. When the rotational speed ? is less than ?1, an output voltage of the main circuit unit is controlled at a fixed value. When the rotational speed ? is greater than or equal to ?1, the compressor is controlled not to enter the field weakening control temporarily and the output voltage of the main circuit unit is controlled to rise, the compressor is controlled to enter the field weakening control when the output voltage of the main circuit unit cannot continue to rise.

Abstract: A multi-split air conditioner and control method are provided. The multi-split air conditioner includes an outdoor unit including an oil separator and a four-way valve. The outdoor unit includes a pipeline connecting the oil separator and the four-way valve, and the pipeline includes a first pipeline and a second pipeline arranged in parallel, wherein the first pipeline is provided with a heat storage module and a heat storage module control valve, and the second pipeline is provided with a first control valve. When the outdoor environment temperature satisfies a certain condition, the first pipeline and the second pipeline are controlled, so that at least part of working medium circulates in the first pipeline between the oil separator and the four-way valve through the heat storage module.