KR20130037334A - Media apparatus and the method for operating the same - Google Patents

Media apparatus and the method for operating the same Download PDF

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Publication number
KR20130037334A
KR20130037334A KR1020110101689A KR20110101689A KR20130037334A KR 20130037334 A KR20130037334 A KR 20130037334A KR 1020110101689 A KR1020110101689 A KR 1020110101689A KR 20110101689 A KR20110101689 A KR 20110101689A KR 20130037334 A KR20130037334 A KR 20130037334A
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KR
South Korea
Prior art keywords
communication mode
channel
external device
response packet
test
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KR1020110101689A
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Korean (ko)
Inventor
장남식
Original Assignee
엘지전자 주식회사
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Priority to KR1020110101689A priority Critical patent/KR20130037334A/en
Publication of KR20130037334A publication Critical patent/KR20130037334A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
    • H04B17/0085—Monitoring; Testing using service channels; using auxiliary channels using test signal generators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention relates to a media device and a method of operating the same. According to an embodiment of the present disclosure, a method of operating a media device may include entering a first communication mode, transmitting a test packet to an external device based on a second communication mode, and receiving a test response packet from an external device. Receiving and establishing a channel of the first communication mode based on the test response packet. As a result, wireless channel setting can be easily performed.

Description

Media apparatus and the method for operating the same

The present invention relates to a media device and a method of operating the same, and more particularly, to a media device and a method of operating the same that can easily perform wireless channel setting.

The media device is a device that processes an image or audio that a user can watch. The user may view the image directly through the media device or may view the image through an image display device having a display connected to the media device.

An object of the present invention is to provide a media device and a method of operating the same that can easily perform radio channel setting.

Another object of the present invention is to provide a media device capable of minimizing interference for each communication mode and a method of operating the same in a media device capable of multiple communication modes.

In accordance with an aspect of the present invention, there is provided a method of operating a media device, the method comprising: entering a first communication mode, transmitting a test packet to an external device based on a second communication mode, and Receiving a test response packet from the device and establishing a channel of the first communication mode based on the test response packet.

In addition, a media device according to an embodiment of the present invention for achieving the above object, the first wireless communication module operating in the first communication mode, the second wireless communication module operating in the second communication mode, the first communication When entering the mode, controlling the second wireless communication module to transmit the test packet to the external device based on the second communication mode, and based on the test response packet received at the second wireless communication module, the first communication mode. It includes a control unit for setting the channel.

According to an embodiment of the present invention, in a media device capable of multiple communication modes, upon entering a first communication mode, a test packet is transmitted to an external device based on a second communication mode, and based on a test response packet received from the external device. Thus, by setting the channel of the first communication mode, it is possible to easily set the wireless channel.

In particular, when entering the first communication mode, by checking the second communication mode environment, it is possible to minimize the interference for each communication mode.

However, after channel setting, stable data communication can be performed by exchanging data with an external device or another external device in the first communication mode through the established channel.

1 is a simplified system diagram including a media device according to an embodiment of the present invention.
2 is an internal block diagram of a media device according to an embodiment of the present invention.
3 is an internal block diagram of the controller of FIG. 2.
4 is a flowchart illustrating a method of operating a media device according to an embodiment of the present invention.
5 to 9 are diagrams for describing various examples of a method of operating the media device of FIG. 4.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

The suffix "module" and " part "for components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, the terms "module" and "part" may be used interchangeably.

1 is a simplified system diagram including a media device according to an embodiment of the present invention.

Referring to FIG. 1, the media device 100 according to an embodiment of the present invention may be wirelessly connected to other electronic devices.

In the drawing, the media device 100 and the video display device 300 are arranged in the same network through the network wireless router 200.

Meanwhile, according to an exemplary embodiment of the present invention, the media device 100 may perform a plurality of communication modes.

For example, the media device 100 may exchange data wirelessly with the image display device 300 through a first communication mode, and wirelessly exchange data with the wireless router 200 through a second communication mode. can do.

In this case, when the media device 100 simultaneously performs the first communication mode and the second communication mode, the frequency band of the first communication mode and the frequency band of the second communication mode may overlap. In this case, due to overlapping frequency bands, wireless data communication in each communication mode may not be performed smoothly.

Meanwhile, as another example, while the data exchange is performed between the wireless router 200 and the image display apparatus 300 through the second communication mode, the first communication mode may be changed between the media apparatus 100 and the image display apparatus 300. Data exchange can be performed via.

That is, when the second communication mode is performed around the media device 100 and the first communication mode is performed on the media device 100, the frequency band of the first communication mode and the frequency band of the second communication mode may overlap. Can be. In this case, due to overlapping frequency bands, wireless data communication in each communication mode may not be performed smoothly.

According to an embodiment of the present invention, in the media device capable of multiple communication modes, when the first communication mode enters, the channel of the first communication mode is set in consideration of the second communication mode environment, so that the wireless channel setting can be easily set. . In particular, it is possible to minimize interference for each communication mode. This will be described in detail with reference to FIG. 4 and below.

Meanwhile, the media device according to the embodiment of the present invention may be an apparatus capable of playing media, and may be an optical disk playback device, for example, a Blu-ray playback device or a DVD playback device.

Alternatively, the media device according to an embodiment of the present invention may be an image display device having a display to enable image display. For example, a TV, a portable terminal, a laptop, and the like are also possible.

Alternatively, the media device according to the embodiment of the present invention may be any electronic device including a wireless communication module. For example, all kinds of electronic devices, including home appliances such as a refrigerator, a washing machine, an air conditioner, a cooking appliance, and the like may be possible.

In the following description, the media device 100 will be described based on the optical disk reproducing apparatus.

2 is an internal block diagram of a media device according to an embodiment of the present invention.

Referring to FIG. 2, the media device 100 according to an embodiment of the present invention may include an external device interface unit 130, a first wireless communication module 135, a first wireless communication module 138, and a controller 170. ), And a power supply 195.

The external device interface unit 130 may transmit or receive data with the external device 190 connected by wire. To this end, the external device interface unit 130 may include an A / V input / output unit (not shown).

The external device interface unit 130 may be connected to an external device such as a game device, a camera, a camcorder, a computer (laptop), a set-top box, a TV, a monitor, a mobile terminal, or the like by wire. It can also be done. The A / V input / output unit in the external device interface unit 130 may receive video and audio signals of the external device.

The first wireless communication module 135 may operate in a first communication mode. To this end, the first wireless communication module may provide a wireless communication interface for wireless data communication with another electronic device. For example, the first wireless communication module 135 may receive data from another electronic device or transmit data to another electronic device. In detail, the first wireless communication module 135 may perform ZigBee communication.

The second wireless communication module 138 may operate in a second communication mode. To this end, the first wireless communication module may provide a wireless communication interface for connecting the media device 100 to a wireless network including an internet network. For example, the second wireless communication module 138 may receive data from a router or other electronic device in the network, or may receive content or data provided by the Internet or a content provider or a network operator through a wireless network. have. In detail, the second wireless communication module 138 may perform wireless LAN communication, that is, WiFi (Wi-Fi) communication.

 Meanwhile, the controller 170 performs signal processing on the input video data or audio data through the external device interface unit 130, the first wireless communication module 135, or the second wireless communication module 138. In addition, the signal-processed image data or audio data is transmitted to the external device interface unit 130, the first wireless communication module 135 or the second wireless communication module 138, and controlled to be transmitted to an external electronic device or network. can do.

For example, when the data input to the controller 170 is a stream, the stream may be demultiplexed or the demultiplexed signals may be processed to generate and output a signal for video or audio output.

The image signal processed by the controller 170 may be transmitted to an external device having a display such that an image corresponding to the image signal is displayed on the external device.

Meanwhile, the voice signal processed by the controller 170 may be transmitted to an external device having an audio output unit so that sound corresponding to the voice signal may be output from the external device.

Although not shown in FIG. 2, the controller 170 may include a demultiplexer, an image processor, and the like. This will be described later with reference to FIG. 3.

In addition, the controller 170 may control overall operations of the media device 100.

For example, when the power is turned on in the media device 100, the power supply unit 195 may control each operation power to be supplied to each module 130, 135, 138, and 170.

On the other hand, when entering the first communication mode, the controller 170 controls the second wireless communication module 138 to transmit a test packet to an external device based on the second communication mode, and the second wireless communication module Based on the test response packet received at 138, the channel of the first communication mode may be set.

In particular, the controller 170 controls the second wireless communication module 138 to transmit a test packet to an external device through a plurality of channels, and based on a test response packet received through the plurality of channels, the first communication mode. Can control to set the channel of.

Specifically, the control unit 170 determines that the channel is not used in the second communication mode when the sensitivity or reception rate of the received test response packet is greater than or equal to a predetermined value in the corresponding channel in the second communication mode, and selects the corresponding channel. The channel of the first communication mode may be set.

3 is an internal block diagram of the controller of FIG. 2.

Referring to the drawings, the control unit 170 according to an embodiment of the present invention, the demultiplexer 310, the audio processor 315, the image processor 320, the processor 330, the OSD generator 340 May include a mixer 345. In addition, it may further include a data processor (not shown).

The demultiplexer 310 demultiplexes an input stream. For example, when an MPEG-2 TS is input, it may be demultiplexed and separated into video, audio, and data signals, respectively. Here, the stream signal input to the demultiplexer 310 may be a stream signal output from the external device interface unit 130 or the first wireless communication module 135.

The audio processor 315 may perform voice processing of the demultiplexed voice signal. To this end, the voice processing unit (not shown) may include various decoders.

Also, the audio processor 315 may process base, treble, volume control, and the like.

The image processor 320 may perform image processing of the demultiplexed image signal. To this end, the image processor 320 may include an image decoder 325 and a scaler 335.

The image decoder 325 decodes the demultiplexed video signal, and the scaler 335 performs scaling to output the resolution of the decoded video signal on the display 180.

The video decoder 325 can include a decoder of various standards.

The processor 330 may control overall operations in the media device 100 or the controller 170. For example, the processor 330 may control the media device 100 by a user command or an internal program input through a user input interface unit (not shown).

In addition, the processor 330 may perform data transmission control with the first wireless communication module 135, the second wireless communication module 138, or the external device interface unit 130.

The processor 330 may control operations of the demultiplexing unit 310, the image processing unit 320, the OSD generating unit 340, and the like in the controller 170.

Meanwhile, when entering the first communication mode, the processor 330 controls the second wireless communication module 138 to transmit a test packet to an external device based on the second communication mode, and the second wireless communication module Based on the test response packet received at 138, the channel of the first communication mode may be set.

In particular, the processor 330 controls the second wireless communication module 138 to transmit the test packet to the external device through the plurality of channels, and based on the test response packet received through the plurality of channels, the first communication mode. Can control to set the channel of.

Specifically, the processor 330 determines that the channel is not used in the second communication mode when the sensitivity or reception rate of the received test response packet is greater than or equal to a predetermined value in the corresponding channel in the second communication mode, and selects the corresponding channel. The channel of the first communication mode may be set.

The OSD generator 340 generates an OSD signal according to a user input or itself. For example, a signal for displaying various types of information as a graphic or text may be generated on an external device having a display based on the user input signal. The generated OSD signal may include various data such as a user interface screen, various menu screens, widgets, and icons of the media device 100.

The mixer 345 may mix the OSD signal generated by the OSD generator 340 and the decoded image signal processed by the image processor 320.

The data processor (not shown) in the controller 170 may perform data processing of the demultiplexed data signal. For example, when the demultiplexed data signal is an encoded data signal, it may be decoded.

Meanwhile, a block diagram of the controller 170 shown in FIG. 3 is a block diagram for one embodiment of the present invention. Each component of the block diagram may be integrated, added, or omitted according to the specification of the controller 170 that is actually implemented.

4 is a flowchart illustrating a method of operating a media device according to an embodiment of the present invention, and FIGS. 5 to 9 are views for explaining various examples of the method of operating the media device of FIG. 4.

Referring to the drawing, first, the first communication mode is entered (S410). The controller 170 of the media device 100 may enter the first communication mode based on a local key (not shown) input of the media device 100 or a specific key input of a remote control device (not shown). It can be controlled to enter. On the other hand, step 410 (S410) corresponds to step 510 (S510) of FIG.

Here, the first communication mode refers to a mode for performing data communication with an external device through the first wireless communication module 135. In more detail, the first communication mode may be a Zigbee communication mode. By the Zigbee communication mode, data communication with the media device 100 and an external device such as the image display device 300 can be performed.

Meanwhile, before performing data communication in the first communication mode, a channel selection process of the first communication mode is performed as follows.

Next, based on the second communication mode, the test packet is transmitted to the external device (S420). The controller 170 of the media device 100 may control the test packet to be transmitted to the external device through the second wireless communication module 138 based on the second communication mode.

For example, when the media device 100 can perform a plurality of communication modes, the frequency band of the first communication mode and the frequency band of the second communication mode may overlap. In this case, due to overlapping frequency bands, wireless data communication in each communication mode may not be performed smoothly.

In order to prevent such a case, in the embodiment of the present invention, upon entering the first communication mode, the wireless network environment in the second communication mode is checked.

Here, the second communication mode means a mode for performing data communication with an external device through the second wireless communication module 135. In more detail, the second communication mode may be a Wi-Fi mode. By the Wi-Fi mode, data communication with the media device 100 and an external device, for example, the router 200 or the image display device 300, can be performed.

Meanwhile, step 420 may correspond to step 520 of FIG. 5. Therefore, the controller 170 of the media device 100 may control the test packet to be transmitted to the router 200 through the second wireless communication module 138 based on the second communication mode.

In this case, the test packet may be transmitted to the router 200 through a plurality of channels under the second communication mode.

Next, a test response packet is received from an external device (S430). The controller 170 of the media device 100 may receive a test response packet transmitted from an external device and received through the second wireless communication module 138.

Here, the test response packet may have a correlation with the above-described test packet. For example, if the test packet has a value of '00', the test response packet may be an additional bit added to the test packet. For example, '11' may be added and '1100'.

Meanwhile, operation 430 (S430) may correspond to operation 530 (S530) of FIG. 5. Accordingly, the controller 170 of the media device 100 may receive a test response packet, which is transmitted from the router 200 and received through the second wireless communication module 138.

Next, the channel of the first communication mode is set based on the test response packet (S440). The controller 170 of the media device 100 may set a channel of the first communication mode based on the received test response packet.

For example, when the sensitivity or reception rate of the test response packet is greater than or equal to a predetermined value in the corresponding channel in the second communication mode, the controller 170 of the media device 100 is not used because the corresponding channel is not used in the second communication mode. ) May set the corresponding channel or an adjacent channel thereof as a channel of the first communication mode.

Accordingly, the wireless channel setting of the first communication mode can be easily performed. In particular, when entering the first communication mode, by checking the second communication environment, it is possible to minimize the interference for each communication mode.

The channel setting of the first communication mode may be performed for each channel based on a test response packet sequentially received for each channel. That is, channel scannin may be performed. As described above, when entering the first communication mode, setting a channel capable of wireless data communication may be referred to as auto channel scanning.

Meanwhile, operation 440 (S440) may correspond to operation 540 (S540) of FIG. 5. Therefore, the controller 170 of the media device 100 may set a channel of the first communication mode based on the received test response packet.

On the other hand, when entering the first communication mode, steps 420 to 440 (S420, S430, and S440) may be repeated. For example, at predetermined time intervals, it is possible to transmit a test packet, receive a test response packet, and set a channel of the first communication mode based on the received test response packet. This makes it possible to create a radio channel environment in an optimal first communication mode.

 Next, after channel setting of the first communication mode, data is exchanged with an external device or another external device through the set channel (S450). After the channel setting in the first communication mode, the controller 170 of the media device 100 may control wireless data communication to be performed using the set channel. In particular, the wireless data communication may be controlled through the first wireless communication module 135. Accordingly, data communication can be performed with an external device, for example, the image display device 100 of FIG. 1, as a first communication mode. Specifically, Zigbee communication can be performed. Accordingly, interference with the second communication mode can be minimized, and stable data communication can be performed.

Meanwhile, the 450 th operation S450 may correspond to the 550 th operation S550 and the 555 th operation S555 of FIG. 5. Accordingly, the media device 100 may transmit data to the video display device 300 and receive data from the video display device 300 according to the first communication mode.

6 illustrates an example of a band of a first communication mode and a channel of a second communication mode.

Referring to the drawings, when the second communication mode CM2 is the Wi-Fi mode, a frequency band of approximately 1 to 16 channels may be used in the vicinity of 2.4 GHz. In the drawings, thirteen channels CH1 to CH13 are shown for explanation.

As such, the 2.4 Ghz band is an ISM band (Industrial Scientific Medical band) band, and different communication modes may be used. As a result, interference may occur with each communication mode.

On the other hand, when the first communication mode CM1 is the Zigbee communication mode, it can be freely used in the vicinity of the 2.4 GHz band. However, the embodiment of the present invention exemplifies that four channels Z1, Z2, Z3, and Z4 are used as shown in the band where the second communication mode is not used.

As described above, the four channels Z1, Z2, Z3, and Z4 of the first communication mode CM1 have a sensitivity or reception rate of a test response packet greater than or equal to a predetermined value in a predetermined channel in the second communication mode. It may be a corresponding channel or a neighboring channel thereof.

In the drawing, in the second communication mode CM2, when the sensitivity or reception rate of the test response packet is greater than or equal to a predetermined value in all channels, that is, when all 13 channels are not used, the four channels Z1 of the first communication mode (Z1). , Z2, Z3, Z4) are all set to be available.

7 is a diagram illustrating another example of a band of a first communication mode and a channel of a second communication mode.

Referring to FIG. 5, when the sensitivity or the reception rate of the test response packet of the ninth to thirteenth channels CH9 to CH13 among the channels of the second communication mode CM2 is less than a predetermined value, that is, For example, the corresponding channels are used. For example, between the router 200 and the image display device 300, the ninth channel to thirteenth channels CH9 to CH13 may be used.

Meanwhile, it can be seen that the sensitivity or reception rate of the test response packet is greater than or equal to a predetermined value in the first to twelfth channels CH1 to CH12 among the channels of the second communication mode CM2 and the corresponding channels are not used.

Accordingly, among the four channels Z1, Z2, Z3, and Z4 of the first communication mode CM1, the first channels corresponding to the first to twelfth channels CH1 to CH12 of the second communication mode CM2 are provided. The channel Z1 and the second channel Z2 may be set to be available.

8 is a diagram illustrating a mobile terminal added to a network.

Referring to FIG. 8, the media device 100, the image display device 300, and the portable terminal 400 are arranged in the same network through the network wireless router 200. In comparison with FIG. 1, it can be seen that the mobile terminal 400 is further added on the network.

The portable terminal 400 may perform data communication with the wireless router 200, the image display device 300, or the media device 100 in a second communication mode.

9 illustrates another example of a band of a first communication mode and a channel of a second communication mode.

As shown in FIG. 8, when the image display device 300 and the portable terminal 400 including the wireless router 200 are disposed on the network, in the first communication mode, available channels are changed as shown in FIG. 9. Can be.

In comparison with FIG. 7, the fifth to eighth channels CH5 to CH8 are further used among the channels of the second communication mode CM2.

That is, when the sensitivity or the reception rate of the test response packet of the fifth to thirteenth channels CH5 to CH13 among the channels of the second communication mode CM2 is less than a predetermined value, the corresponding channels are used. For example, between the router 200 and the image display device 300, the ninth to thirteenth channels CH9 to CH13 may be used, and between the router 200 and the mobile terminal 400, a fifth may be used. Channels to eighth channels CH5 to CH8 may be used.

Meanwhile, it can be seen that the sensitivity or reception rate of the test response packet is greater than or equal to a predetermined value in the first to fourth channels CH1 to CH4 among the channels of the second communication mode CM2 and the corresponding channels are not used.

Accordingly, among the four channels Z1, Z2, Z3, and Z4 of the first communication mode CM1, the first channels corresponding to the first to fourth channels CH1 to CH4 of the second communication mode CM2 are provided. Channel Z1 may be set as available.

The media device and its operation method according to the present invention are not limited to the configuration and method of the embodiments described as described above, but the embodiments may be modified in whole or in part to enable various modifications. It may alternatively be configured in combination.

Meanwhile, the method of operating a media device of the present invention can be implemented as processor-readable code on a processor-readable recording medium provided in the media device. The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of the processor-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like, and may also be implemented in the form of a carrier wave such as transmission over the Internet. . The processor-readable recording medium can also be distributed over network coupled computer systems so that the processor-readable code is stored and executed in a distributed fashion.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

Claims (12)

Entering a first communication mode;
Based on the second communication mode, sending a test packet to an external device;
Receiving a test response packet from the external device; And
Based on the test response packet, setting a channel of a first communication mode. The method of claim 1,
And exchanging data with the external device or another external device through the set channel after the channel setting of the first communication mode. The method of claim 1,
The test packet transmission step is performed in a plurality of channels, respectively, based on the second communication mode,
The channel setting step,
And setting a channel in the first communication mode based on a test response packet received in the plurality of channels. The method of claim 1,
The channel setting step,
And when the sensitivity or reception rate of the test response packet is greater than or equal to a predetermined value in a predetermined channel, setting the predetermined channel or a proximity channel as a channel of a first communication mode. The method of claim 1,
The first communication mode is a Zigbee communication mode,
And the second communication mode is a Wi-Fi communication mode. The method of claim 1,
The transmitting of the test packet, the receiving of the test response packet, and the setting of the channel of the first communication mode are repeatedly performed. A first wireless communication module operating in a first communication mode;
A second wireless communication module operating in a second communication mode; And
Upon entering the first communication mode, the second wireless communication module is controlled to transmit a test packet to an external device based on the second communication mode, and the test response packet received by the second wireless communication module is controlled. And a controller configured to set a channel of the first communication mode based on the first communication mode. The method of claim 7, wherein
The first wireless communication module,
And after the channel setting of the first communication mode, exchanges data with the external device or another external device through the set channel. The method of claim 7, wherein
The second wireless communication module,
Transmitting the test packet to the external device through a plurality of channels,
The control unit,
And setting a channel of the first communication mode based on a test response packet received through the plurality of channels. The method of claim 7, wherein
The control unit,
And when the sensitivity or reception rate of the test response packet is greater than or equal to a predetermined value in a predetermined channel, setting the predetermined channel or a proximity channel as a channel of the first communication mode. The method of claim 7, wherein
The first wireless communication module is a Zigbee communication module,
And the second wireless communication module is a Wi-Fi communication module. The method of claim 7, wherein
The control unit,
And setting the channel of the test packet transmission, the test response packet, and the first communication mode to be repeatedly performed.
KR1020110101689A 2011-10-06 2011-10-06 Media apparatus and the method for operating the same KR20130037334A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108924865A (en) * 2018-07-12 2018-11-30 四川虹美智能科技有限公司 A kind of system and method for the wifi mould group detecting refrigerator
CN109150336A (en) * 2018-10-29 2019-01-04 四川长虹电器股份有限公司 Create the method and device of Zigbee network

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108924865A (en) * 2018-07-12 2018-11-30 四川虹美智能科技有限公司 A kind of system and method for the wifi mould group detecting refrigerator
CN108924865B (en) * 2018-07-12 2021-04-27 四川虹美智能科技有限公司 System and method for detecting wifi module of refrigerator
CN109150336A (en) * 2018-10-29 2019-01-04 四川长虹电器股份有限公司 Create the method and device of Zigbee network

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