Gd Midea Heating & Ventilating Equipment Co., Ltd.

Midea Group Co., Ltd.

Sino Ic Technology Co., Ltd.

Bestechnic (shanghai) Co., Ltd.

Hefei Midea Heating & Ventilating Equipment Co., Ltd.

Shanghai Meicon Intelligent Construction Co., Ltd.

Gd Midea Heating & Venting Equipment Co., Ltd.

Bin Luo

Hua Wang

Kun Yang

Liang Zhang

Weifeng Tong

Fei Luo

Kun Yu

Yuanyang Li

Fudang Wei

Haiying Ji

Xuefei Tang

Jianbo Ling

Bin Li

Jie Yan

Feng Li

Zhijun Tan

Jianhua Qi

Zhiyong Zhang

Baisong Zhou

Zhaohui Li

Rui Song

Shouyin Ye

Duode Wu

Peng Wang

Shuqing Liu

Lin Wu

Yuzhao Luo

Jianming Ye

Hao Zhang

Jintong Wu

Fangcheng Guo

Dongdong Li

Hehui Zhang

Weiwei Deng

Yuan Liu

Huiwei Liu

Lei Zhan

Tao Ruan

Bojiang Pan

Tengda Yi

A compressor return air dryness detection method includes: obtaining an exhaust air pressure, a return air pressure, a working frequency, an exhaust air temperature, and a return air temperature of a compressor; determining a return air saturation temperature corresponding to the return air pressure; calculating a temperature difference value based on the return air temperature and the return air saturation temperature; and in accordance with a determination that the temperature difference value is smaller than a predetermined threshold value, calculating a return air dryness of the compressor based on the exhaust air pressure, the return air pressure, the working frequency, and the exhaust air temperature.

Temperature adjustment device, control method therefor, control apparatus thereof, and storage medium

Disclosed are a heat exchanger fin, a heat exchanger, an indoor unit and an air conditioner. The heat exchanger fin includes a fin body, and the fin body includes an air outlet contour line arranged on one side and an air inlet contour line arranged on the other side; refrigerant pipe mounting holes are provided in the fin body; and on a straight line where the curvature radius of the air outlet contour line of the fin body is located, or on a straight line where the curvature radius of the air inlet contour line of the fin body is located, the distance between the air inlet contour line and the air outlet contour line of the fin body is gradually reduced from the middle to two ends of the heat exchanger fin.

Heat exchanger fin, heat exchanger, indoor unit and air conditioner

Provided in the present application are a control system of an air conditioner and an air-conditioning device. The control system of the air conditioner comprises: a main machine control assembly receiving a feedback parameter of a main machine, to adjust, according to the feedback parameter, a water discharge temperature of the main machine; a water pump control assembly, and the water pump control assembly is in communication with the main machine control assembly, to adjust, according to a feedback parameter of the water pump, an operating parameter of a water pump; a cooling tower control assembly, and the cooling tower control assembly is connected to the water pump control assembly, to adjust, according to an environment parameter and a target water discharge temperature, the current water discharge temperature of a cooling tower; and a tail end control assembly.

Control system of air conditioner and air-conditioning device

The invention relates to a universal semiconductor automatic high-speed serial signal testing method, comprising: a chip to be tested sending, to an impedance matching unit, a high-speed serial signal; then by means of a phase shift unit, sequentially transforming, according to a set fixed resolution, the phase of the high-speed serial signal, the magnitude of each offset phase being determined by a phase shift control signal outputted by a control unit and the resolution of the phase shift unit; after passing through the phase shift unit, the high-speed serial signal keeps channel impedance matching by means of the impedance matching unit; the signal entering an acquisition unit, and being acquired under the action of an acquisition control signal sent by the control unit; the control unit performing signal exchange with semiconductor automatic testing equipment (ATE); and the acquisition unit transmitting the acquired signal back to the universal semiconductor ATE for algorithm operation, and then the actual high-speed serial data stream is obtained. The present invention enables direct testing of high-speed serial interface signals by means of the universal ATE during mass production, greatly improving testing convenience and efficiency.

Universal semiconductor-based automatic highspeed serial signal testing method

A heat pump system and a control method therefor are provided. The heat pump system includes an outdoor heat exchanger and an electromagnetic heating assembly. The electromagnetic heating assembly includes an induction heating sheet, an insulation plate, and an electromagnetic induction wire coil. The induction heating sheet is in contact with the outdoor heat exchanger, the electromagnetic induction wire coil is attached to the insulation plate, the insulation plate is connected to the outdoor heat exchanger or the induction heating sheet, the induction heating sheet is coupled with the electromagnetic induction wire coil by communication.

Heat pump system with electromagnetic-induction heating and control method therefor

Embodiments of wireless audio systems and methods for wirelessly communicating audio information are disclosed herein. In one example, wireless transceiver includes a first antenna, a second antenna, and a radio frequency (RF) module. The first antenna and second antenna are configured to establish communication links with an audio source and another wireless transceiver. The RF module is configured to receive audio information from the audio source based on a first communication link using the first antenna and the second antenna and receive audio play information from the another wireless transceiver based on a second communication link using the first antenna and the second antenna. A data transmission proportion of the first communication link allocated between the first antenna and the second antenna is dynamically adjusted based on qualities of data communicated by the first antenna and the second antenna through the first transmission link. A data transmission proportion of the second communication link allocated between the first antenna and the second antenna is dynamically adjusted based on qualities of data communicated by the first antenna and the second antenna through the second transmission link.

Wireless audio system and method for wirelessly communicating audio information using the same

The present invention discloses an information management method and system for IC tests, and a storage medium. The method comprises steps of: providing test data generated by performing an IC test by an IC test platform, the IC test platform being an IC test platform having more than one stage, each stage of the IC test platform comprising a plurality of test devices: providing resource data related to the IC test, other than the test data; and analyzing the IC test according to the test data of the IC test and the resource data, to obtain result data related to the IC test. In this way, the present invention can provide technical support for utilizing the value of test data generated in IC tests.

IC test information management system based on industrial internet

The present invention discloses a halo test method for an optical chip in an integrated circuit. A captured image array is processed as a circle by: dividing the array into circular patterns on the basis of the radius, reconstructing the circular patterns into a two-dimensional array according to coordinates, and then performing corresponding operations on the obtained array to obtain a desired value. By the halo test method for an optical chip in an integrated circuit provided in the present invention, without increasing any extra hardware cost and under the primary test conditions, the technical problem in the prior art that there is no well-developed method and algorithm for testing halo on a fingerprint on display (FOD) chip is solved.

Halo test method for an optical chip in an integrated circuit

Embodiments of wireless audio systems and methods for wirelessly communicating audio information are disclosed herein. In one example, wireless transceiver includes a first antenna, a second antenna, and a radio frequency (RF) module. The first antenna is configured to establish a first wireless communication link with an audio source. The second antenna is configured to establish a second wireless communication link with another wireless transceiver. The RF module is configured to receive audio information from the audio source using the first wireless communication link and transmit audio play information to the another wireless transceiver using the second wireless communication link. A first RF radiation field of the first antenna has a higher intensity in a first direction than a second direction orthogonal to the first direction, and a second RF radiation field of the second antenna has a higher intensity in the second direction than the first direction.

A configuration and testing method and system for an FPGA chip using a bumping process are disclosed, the method includes creating configuration files for an FPGA chip under test and storing them in a memory; reading, by a master FPGA, a configuration code stream of corresponding configuration codes from the mass memory, configuring the FPGA chip under test via an external test interface, and determining whether the configuration is successful; if the configuration is successful, converting the configuration code stream into a test signal source file that is recognizable, executable and reusable by multiple pieces of test equipment by a developed algorithm and a conversion tool; and automatically loading the test signal source file onto the FPGA chip under test in real time by advanced test equipment.

Configuration and testing method and system for FPGA chip using bumping process

A multi-split air-conditioner and an outdoor unit system thereof are provided. The outdoor unit system includes: a compressor () having a gas outlet (a) and a gas inlet (b); an outdoor heat exchanger () having an inlet (c) and an outlet (d); a switching assembly () having first to sixth ports, wherein the first port (e) is connected with the gas outlet (a) of the compressor (), the second port (f) is connected with the gas inlet (b) of the compressor (), the third port (g) is connected with the inlet (c) of the outdoor heat exchanger (), the fourth port (h) is connected with the outlet (d) of the outdoor heat exchanger (), the fifth port (i) is connected with an inlet pipe () and the sixth port (j) is connected with an outlet pipe ().

Multi-split air-conditioner and outdoor unit system thereof

A method and an apparatus for adjusting an operating frequency of an inverter compressor are provided. The method includes following steps: detecting whether an inverter air conditioner is in a heating mode; obtaining a target operating current of the inverter compressor if the inverter air conditioner is in the heating mode; adjusting the operating frequency of the inverter compressor according to the target operating current; obtaining an operating parameter of the inverter compressor and obtaining a maximum operating frequency of the inverter compressor according to the operating parameter; obtaining a current correction according to the maximum operating frequency and correcting the target operating current according to the current correction to update the target operating current.

Method and apparatus for adjusting operating frequency of inverter compressor

A method for controlling an electronic expansion valve of a variable refrigerant flow air conditioning system includes steps as follows: when operating in a primary heating mode, obtaining a degree of superheat of return air of a compressor, and performing a control on an opening degree of the first electronic expansion valve according to the degree of superheat; judging the degree of superheat and the opening degree of each refrigerating indoor machine in the plurality of indoor machines; and if the degree of superheat is greater than a first preset degree of superheat and an opening degree in any refrigerating indoor machine reaches a maximum opening degree, obtaining a target medium pressure value by calculating a refrigerant volume of the refrigerating indoor machine reaching the maximum opening degree, and performing a medium pressure control on the first electronic expansion valve according to the target medium pressure value.

Variable refrigerant flow air conditioning system and method for controlling electronic expansion valve thereof

An air conditioning system, an outdoor apparatus of an air conditioning system and a method for controlling an air conditioning system are provided. The air conditioning system includes: an indoor apparatus and an outdoor apparatus. The outdoor apparatus includes a variable-frequency compressor and a controller configured to perform a variable-frequency control on the variable-frequency compressor according to operation parameters of the variable-frequency compressor and independent from the indoor apparatus.

Air conditioning system, method for controlling air conditioning system, and outdoor apparatus of air conditioning system

A method for controlling an air conditioning system, an outdoor apparatus of an air conditioning system and an air conditioning system are provided. The method includes: obtaining a working mode of the air conditioning system and starting a variable-frequency compressor in an outdoor apparatus of the air conditioning system according to the working mode; obtaining a target refrigerant saturation temperature; performing a variable-frequency control on the variable-frequency compressor according to the target refrigerant saturation temperature; during the variable-frequency control, obtaining a working time of the variable-frequency compressor and a stop-start number of time of the variable-frequency compressor in a first predetermined period; and adjusting the target refrigerant saturation temperature according to the working time of the variable-frequency compressor and the stop-start number of time of the variable-frequency compressor in the first predetermined time.

System and method for controlling an air conditioning system and an outdoor apparatus of the system

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Shanghai, China

Bin Luo