37results about How to "Improve after-sales maintenance efficiency" patented technology

The invention relates to air-conditioner intelligent detection technique, and discloses a method for detecting a four-way valve of an air-conditioner. The method for detecting the four-way valve of the air-conditioner can automatically detect and judge whether the four-way valve is normal or abnormal, and timely displays faults, so that convenience is provided for failure predication and after-sales repair. The method comprises the following steps: judging a work pattern when the air-conditioner is switched on; timing operation time of the air-conditioner when the air-conditioner is operated in a heating or a cooling mode; collecting present working frequency of a compressor when the operation time achieves a preset time threshold value; detecting and calculating a difference value of indoor environment temperature and indoor heat exchanger coil pipe temperature and a difference value of outdoor heat exchanger coil pipe temperature and outer environment temperature according to a specific working mode of the air-conditioner when the present working frequency of the compressor achieves a preset frequency threshold value; and judging the four-way valve is abnormal when setting conditions are met, and carrying out alarm reminding for the failure. The method for detecting the four-way valve of the air-conditioner is suitable for being used for intelligently detecting failure of the four-way valve of the air-conditioner.

The invention provides a detecting device and method. The detecting device is used for air conditioners and each air conditioner comprises an indoor unit and an outdoor unit; the detecting device comprises a processor, communication ports and at least two sets of current-loop communication circuits connected with the processor, and the at least two sets of current-loop communication circuits are output to the communication ports and connected with current-loop communication circuits in the indoor units and the outdoor units through the communication ports. The detecting device has the functionof power-on automatic detecting communication failure, can detect the communication failure of the indoor units and the communication failure of the outdoor units and is simple and easy to use, the research and development debugging efficiency and the air conditioner after-sale maintenance efficiency can be greatly improved, and the after-sale cost is reduced.

The invention discloses an indoor unit of an air conditioner. The indoor unit comprises a panel body, a panel and an electric appliance box, the panel detachably covers the panel body, the electric appliance box comprises a box body, a box cover and a controller mainboard, the box cover covers the box body, the controller mainboard is arranged in the box body, the panel body is provided with an open hole, and the controller mainboard is detachably taken out from the open hole of the panel body. The panel body is provided with the open hole, and the controller mainboard is arranged in the box body and detachably taken out from the open hole of the panel body, so that related maintenance operation can be performed on the controller mainboard without demounting the panel body; the controller mainboard is convenient and quick to mount and demount, so that after-sale maintenance efficiency of the air conditioner is improved.

The invention discloses an air conditioner fault diagnosis device and a diagnosis method. The fault diagnosis device comprises a connection interface which is connected to the air conditioner, a reading module which is connected to the connection interface and is used for reading the fault information and the usage environment information which are stored in the air conditioner, a display module and a control module which is connected to the reading module and the display module and determines the fault type according to the fault information and the usage environment information and displays the fault type through the display module. The fault diagnosis device can provide the fault-related information, can help the maintenance staff to fast and accurately position the fault, improves the after sale maintenance efficiency, reduces the maintenance time and frequency. The invention also discloses an air conditioner diagnosis method.

The invention belongs to the field of motor control, and especially relates to an automatic detection method and system of compressor models. According to the invention, offline parameters obtained by means of offline identification and a preset error function [delta][sigma](n) of parameters of compressors of known models are utilized to calculate the error value of each parameter, and the model of the current compressor is judged through the error values, so that the working efficiency is improved, the accuracy is improved, the present situation of after-sale service of air conditioners is effectively improved, and the after-sale maintenance efficiency of the air conditioners is improved.

The invention provides a method for refreshing a BIOS (Basic Input Output System) in an Itanium platform operating system. The method comprises the following steps that: 1) an Itanium_BIOS_update program reads version information of the BIOS of an existing version, reads original BIOS content and backs up the content as backup.fd; 2) an original program is compared with a refreshing program, if the refreshing program is consistent with the version of an existing machine, the program is stopped, a prompt ''now it is already latest version and refreshing is not required'' is output, and if the refreshing program is not consistent with the version of the existing machine, BIOS ROMs (Read Only Memories) of a CPU (Central Processing Unit) are subjected to program update one by one; and 3) the program automatically verifies whether the refreshing is successful after all the ROMs are updated, if the refreshing is failed, a prompt ''upgrade failed'' is output, 1 is selected for returning to the original version, 2 is selected for re-upgrading, if the refreshing is failed again, the operation of returning to the original version is suggested, and if the refreshing is successful, a prompt ''the refreshing is successful, please restart during maintenance and the BIOS of a new version takes effect immediately'' is output. According to the method, the time for BIOS upgrading maintenance by clients on site is greatly shortened, the maintenance efficiency is improved, and the maintenance downtime cost is reduced.

The invention provides a configuration information recording method, a configuration information recording system, an air conditioner, computer equipment and a computer readable storage medium. The method comprises the steps of: sending a parameter configuration request to enable at least one indoor unit to judge if configuration information is stored in a storer of the indoor unit after receivingthe parameter configuration request; and if so, receiving the configuration information sent by the indoor unit, and sending a control instruction to the indoor unit according to the configuration information. The method needs no user and after-sales maintainer to manually set configuration parameters again one by one, so that the after-sales maintenance time is reduced, and the after-sales maintenance efficiency is improved; and meanwhile, the resetting of personalized parameters by the users is prevented, so that the time waste of resetting the configuration parameters is prevented, and theuse experiences of the users are improved.

The invention discloses a long-distance communication dental ultrasound therapeutic instrument. The therapeutic instrument is provided with a detection module and a wifi communication module. The detection module is connected to a processor and all functional devices and is used for detecting working signals of all the functional devices and transmitting the working signals to the processor. The wifi communication module is connected to the processor, receives the working signals of all the functional devices sent by the processor and uploads the working signals via the Internet to the serverthrough a wifi wireless router and the server saves the working signals. After the user starts the wifi communication module, an instruction is input through a man-machine interface so that the processor uploads the work signals to the server through the wifi communication module and the wifi wireless router. Engineers can use the computer or mobile phone APP to connect to the Internet to check the usage information and current working status of the dental ultrasound therapeutic instrument.

The invention discloses an android system upgrading method and device and a readable storage medium, and relates to the technical field of android, the android system comprises a dynamic partition and a static partition, the dynamic partition comprises a plurality of dynamic sub-partitions, and the method comprises the steps that when a system upgrading package is received, current upgrading parameters of the android system are acquired; determining a to-be-upgraded target dynamic sub-partition in the dynamic partition according to the current upgrading parameter; upgrading the target dynamic sub-partition and the static partition according to the system upgrading package; the corresponding partition is upgraded according to the current upgrading parameter, so that upgrading can be carried out according to the actual condition of the customized Android system during upgrading, customized contents are not covered, and the effect that one upgrading package can cover all types is realized; the technical problems that in the prior art, when customized and non-customized Android systems are upgraded, different upgrade packages need to be made, so that the upgrade workload is large, and consumed time is long are solved.

The invention discloses a high-voltage interlocking device. The high-voltage interlocking device comprises a power supply Vcc (1), a relay 1 (2), a normally closed switch 1 (3), a coil 1 (4), a connector 1 (5), high-voltage equipment 1 (6), a relay 2 (7), a normally closed switch 2 (8), a coil 2 (9), a connector 2 (10), high-voltage equipment 2 (11), a relay 3 (12), a normally closed switch 3 (13), a coil 3 (14), a connector 3 (15), high-voltage equipment 3 (16), a resistor R1 (17), a resistor R2 (18), a resistor R3 (19), a resistor R4 (20) and a control unit (21). The high-voltage interlocking device is used for wire harness connection detection of the high-voltage equipment of a new energy automobile, the wire harness connection state of any piece of high-voltage equipment can be accurately judged by monitoring the voltage change of a detection point, and automobile after-sales personnel are assisted in quickly judging a wire harness disconnection fault point and repairing the automobile.