CN212677189U - Display module assembly and household electrical appliances of household electrical appliances - Google Patents
Display module assembly and household electrical appliances of household electrical appliances Download PDFInfo
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- CN212677189U CN212677189U CN202021184785.XU CN202021184785U CN212677189U CN 212677189 U CN212677189 U CN 212677189U CN 202021184785 U CN202021184785 U CN 202021184785U CN 212677189 U CN212677189 U CN 212677189U
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Abstract
The embodiment of the application provides a display module assembly of household appliances and household appliances, and relates to the technical field of household appliances. The display module comprises a main control chip, a wireless fidelity (WiFi) module, a display screen and a storage chip, wherein the main control chip is in communication connection with the display screen, the display screen is used for displaying data transmitted by the main control chip, and the WiFi module and the main control chip are connected with the storage chip through a first communication bus; the WiFi module is used for transmitting the received data to the storage chip through the first communication bus so that the storage chip stores the data transmitted by the WiFi module; the main control chip is used for reading the data in the storage chip through the first communication bus and transmitting the data to the display screen. By the adoption of the method and the device, the downloading speed of the WiFi module can be improved.
Description
Technical Field
The application relates to the technical field of household appliances, in particular to a display module of a household appliance and the household appliance.
Background
In order to facilitate the interaction between the user and the home appliance, the home appliance is usually provided with a display module.
Referring to fig. 1, a display module in the prior art generally includes a WiFi (Wireless Fidelity) module 101, a main control chip 102, a storage chip 103, and a display screen 104, where the WiFi module 101 is connected to the main control chip 102 through a UART (universal asynchronous receiver/transmitter) bus 105, the main control chip 102 is connected to the storage chip 103 through an SPI (serial peripheral interface) bus 106, and the main control chip 102 is further connected to the display screen 104 through an RGB (Red Green Blue ) interface. The WiFi module 101 may download data (such as menu data), for example, the WiFi module 101 may receive data (such as menu data) transmitted by a server, and then transmit the data to the main control chip 102 through the UART bus 105, and the main control chip 102 receives the data and transmits the data to the memory chip 103 through the SPI bus 106, so that the memory chip 103 stores the data. After the WiFi module 101 downloads data to the memory chip 103, the main control chip 102 can read the data in the memory chip 103 through the SPI bus 106 and transmit the data to the display screen 104, and the display screen can display the data for the user to view.
In the prior art, the WiFi module transmits data to the storage chip through the UART bus, the main control chip and the SPI bus, and the link of the data from the WiFi module to the storage chip is too much, so that the downloading speed of the WiFi module is low.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a display module assembly and household electrical appliances of household electrical appliances, can improve the download speed of wiFi module. The specific technical scheme is as follows:
a display module of household appliances comprises a main control chip, a wireless fidelity (WiFi) module, a display screen and a storage chip, wherein the main control chip is in communication connection with the display screen, the display screen is used for displaying data transmitted by the main control chip, and the WiFi module and the main control chip are connected with the storage chip through a first communication bus;
the WiFi module is used for transmitting the received data to the storage chip through the first communication bus so as to enable the storage chip to store the data transmitted by the WiFi module;
the main control chip is used for reading the data in the storage chip through the first communication bus and transmitting the data to the display screen.
Optionally, access status signals of the memory chip are also transmitted between the main control chip and the WiFi module, so that the main control chip and the WiFi module access the memory chip alternately.
Optionally, the main control chip and the WiFi module transmit respective access status signals to the memory chip through the first communication bus.
Optionally, the main control chip and the WiFi module are connected through a communication port, and the main control chip and the WiFi module transmit respective access status signals to the memory chip through the communication port.
Optionally, the communication port is an input/output IO port;
the WiFi module is used for reading the level state of the IO port before accessing the storage chip, transmitting the received data to the storage chip through the first communication bus if the level state of the IO port is a first level state, setting the level state of the IO port to be a second level state opposite to the first level state when the data is transmitted, and setting the level state of the IO port to be the first level state after the data is transmitted;
the main control chip is used for reading the level state of the IO port before accessing the storage chip, reading the data in the storage chip through the first communication bus if the level state of the IO port is the first level state, setting the level state of the IO port to be the second level state when reading the data, and setting the level state of the IO port to be the first level state after reading the data.
Optionally, the communication port is a UART port;
the WiFi module is used for inquiring the main control chip whether the main control chip and the storage chip are in a communication state or not through the UART port before accessing the storage chip, and if not, transmitting the received data to the storage chip through the first communication bus;
the main control chip is used for inquiring the WiFi module whether the WiFi module and the storage chip are in a communication state or not through the UART port before accessing the storage chip, and if not, reading data in the storage chip through the first communication bus and transmitting the data to the display screen.
Optionally, the first communication bus is a serial peripheral interface SPI bus, an integrated circuit I2C bus, or a parallel bus.
Optionally, the main control chip is connected to the display screen through a red, green, blue, RGB interface.
Optionally, the data includes a recipe with pictures and/or text.
In a second aspect, a household appliance is provided, which includes the display module according to the first aspect.
Compared with the prior art, the beneficial effects of the application are as follows:
1. in this application, wiFi module and main control chip are connected with memory chip through first communication bus, and the wiFi module can be through first communication bus direct with data download to memory chip, need not to pass through main control chip, can improve the download speed of wiFi module.
2. In the application, the access state signals of the main control chip and the WiFi module to the storage chip are transmitted respectively, so that the main control chip and the WiFi module access the storage chip alternately, and the problem of access errors caused by the fact that the main control chip and the WiFi module access the storage chip simultaneously can be avoided.
3. In the application, the access state signals of the main control chip and the WiFi module are transmitted to the storage chip through the first communication bus, a communication line for transmitting the access state signals does not need to be additionally arranged, and the cost can be reduced.
4. In the application, the main control chip and the WiFi module are connected through the communication port, the access state signals of the memory chip are transmitted through the communication port between the main control chip and the WiFi module, the access state signals and data are transmitted through different communication lines, interference cannot be caused when the access state signals and the data are transmitted, and reliability of the access state signals and the data transmission is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a display module in the prior art;
fig. 2 is a schematic structural diagram of a display module according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another display module according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 2 and fig. 3, an embodiment of the present application provides a display module for a home appliance, including a main control chip 202, a WiFi module 201, a display screen 204 and a storage chip 203, where the main control chip 202 is in communication connection with the display screen 204, and the display screen 204 is used for displaying data transmitted by the main control chip 202.
The WiFi module 201 and the main control chip 202 are connected to the memory chip 203 through a first communication bus 205, and the WiFi module 201 is configured to transmit the received data to the memory chip 203 through the first communication bus 205, so that the memory chip 203 stores the data transmitted by the WiFi module 201; the main control chip 202 is used for reading data in the memory chip 203 through the first communication bus 205 and transmitting the data to the display screen 204.
The first communication bus 205 may be an SPI bus, an I2C (integrated circuit) bus, or a parallel bus. The data may include a recipe with pictures and/or text. The main control chip 202 and the display screen 204 may be connected through a red, green, blue, RGB interface.
In this embodiment of the application, the WiFi module 201 may receive data sent by an external device, for example, receive menu data with pictures and/or characters sent by a server or a mobile phone, and after receiving the data, the WiF module may directly transmit the received data to the memory through the first communication bus 205, so that the memory stores the data. After the memory stores the data, the main control chip 202 may directly read the data in the memory chip 203 through the first communication bus 205 and transmit the data to the display screen 204, so that the display screen 204 displays the data transmitted by the main control chip 202. For example, a user may send a corresponding query instruction to the main control chip 202 through the display screen 204, and after receiving the query instruction, the main control chip 202 may directly read data corresponding to the query instruction in the storage chip 203 through the first communication bus 205 and transmit the data to the display screen 204.
In this application, the WiFi module 201 and the main control chip 202 are connected with the storage chip 203 through the first communication bus 205, and the WiFi module 201 can directly download data to the storage chip 203 through the first communication bus 205, without passing through the main control chip 202, and the download speed of the WiFi module 201 can be improved.
Optionally, the main control chip 202 may be configured to enable the WiFi module 201 to access the memory chip 203 at the same time, which is usually difficult to access the memory chip 203 at the same time, and in order to enable the main control chip 202 and the WiFi module 201 to access the memory chip 203 alternately, the main control chip 202 and the WiFi module 201 also transmit respective access status signals to the memory chip 203, so that the main control chip 202 and the WiFi module 201 access the memory chip 203 alternately.
In this embodiment, the WiFi module 201 may transmit an access state signal of the WiFi module to the memory chip 203 to the main control chip 202, so as to inform the main control chip 202 whether the WiFi module 201 is in an access state to the memory chip 203, and if the WiFi module 201 is not in the access state, the main control chip 202 may read data in the memory chip 203. The main control chip 202 may transmit an access state signal of the main control chip 202 to the WiFi module 201 to inform the WiFi module 201 whether the main control chip 202 is in an access state to the memory chip 203, and if the main control chip 202 is not in the access state, the main control chip 202 may read data in the memory chip 203.
In the application, the main control chip 202 and the WiFi module 201 also transmit respective access state signals to the memory chip 203, so that the main control chip 202 and the WiFi module 201 alternately access the memory chip 203, and the problem of access errors caused by the fact that the main control chip 202 and the WiFi module 201 simultaneously access the memory chip 203 can be avoided.
Optionally, referring to fig. 2, the access status signals of the memory chip 203 are transmitted between the main control chip 202 and the WiFi module 201 through the first communication bus 205.
In this embodiment of the application, before accessing the memory chip 203, the WiFi module 201 may inquire, to the main control chip 202 through the first communication bus 205, whether the main control chip 202 and the memory chip 203 are in a communication state, that is, whether the main control chip 202 is currently accessing the memory chip 203, and if not, transmit the received data to the memory chip 203 through the first communication bus 205. Before accessing the memory chip 203, the main control chip 202 may inquire, through the first communication bus 205, to the WiFi module 201 whether the WiFi module 201 and the memory chip 203 are in a communication state, that is, whether the WiFi module 201 is currently accessing the memory chip 203, and if not, read data in the memory chip 203 through the first communication bus 205 and transmit the data to the display screen 204.
Where the first communication bus 205 is an SPI bus, the SPI bus typically includes four wires: SDI (Serial Data Input), SDO (Serial Data Output), SCLK (Serial Clock), CS (Chip Select). The access status signals of the memory chip 203 can be exchanged between the main control chip 202 and the WiFi module 201 through the CS line. For example, the WiFi module 201 reads the level state of the CS line before accessing the memory chip 203, and if the level state of the CS line is a high level state, transmits the received data to the memory chip 203 through the first communication bus 205, and sets the level state of the CS line to a low level state when transmitting the data, so as to prevent the main control chip 202 from accessing the memory chip 203 at the same time. The level state of the CS line is set to a high level state after the end of data transmission. The main control chip 202 reads the level state of the CS line before accessing the memory chip 203, and if the level state of the CS line is a high level state, reads data in the memory chip 203 through the first communication bus 205, and sets the level state of the CS line to a low level state when reading data, so as to prevent the WiFi module 201 from accessing the memory chip 203 at the same time, and sets the level state of the CS line to a high level state after reading data.
In the application, the access state signals of the main control chip 202 and the WiFi module 201 to the memory chip 203 are transmitted through the first communication bus 205, and a communication line for transmitting the access state signals is not required to be additionally arranged, so that the cost can be reduced.
Optionally, referring to fig. 3, the main control chip 202 and the WiFi module 201 are connected through a communication port 206, and the access status signals of the memory chip 203 are transmitted between the main control chip 202 and the WiFi module 201 through the communication port 206.
In one implementation, the communication port 206 is an input/output IO port; the WiFi module 201 is configured to read a level state of the IO port before accessing the memory chip 203, transmit the received data to the memory chip 203 through the first communication bus 205 if the level state of the IO port is a first level state, set the level state of the IO port to a second level state opposite to the first level state when transmitting the data, and set the level state of the IO port to the first level state after the data transmission is finished. The main control chip 202 is configured to read a level state of the IO port before accessing the memory chip 203, and if the level state of the IO port is a first level state, read data in the memory chip 203 through the first communication bus 205, set the level state of the IO port to a second level state when reading the data, and set the level state of the IO port to the first level state after reading the data.
The first level state may be a low level state, and the second level state may be a high level state. Alternatively, the first level state is a high level state, and the second level state is a low level state.
For example, the first level state may be a low level state, the second level state is a high level state, the low level state of the IO port indicates that the current memory chip 203 is not accessed by the main control chip 202 and the WiFi module 201, and the high level state of the IO port indicates that the current memory chip 203 is accessed by the main control chip 202 and the WiFi module 201. The WiFi module 201 reads the level state of the IO port before accessing the memory chip 203, and if the level state of the IO port is a low level state, transmits the received data to the memory chip 203 through the first communication bus 205, and sets the level state of the IO port to a high level state when transmitting the data, so as to prevent the main control chip 202 from accessing the memory chip 203 at the same time. And after the data transmission is finished, setting the level state of the IO port to be a low level state. The main control chip 202 reads the level state of the IO port before accessing the memory chip 203, and if the level state of the IO port is a low level state, reads data in the memory chip 203 through the first communication bus 205, and sets the level state of the IO port to a high level state when reading data, so as to prevent the WiFi module 201 from accessing the memory chip 203 at the same time, and sets the level state of the IO port to a low level state after reading data.
In another implementation, the communication port 206 is a UART port; the WiFi module 201 is configured to inquire, before accessing the memory chip 203, to the main control chip 202 through the UART port whether the main control chip 202 and the memory chip 203 are in a communication state, that is, whether the main control chip 202 accesses the memory chip 203, if not, the received data is transmitted to the memory chip 203 through the first communication bus 205; the main control chip 202 is configured to inquire, through the UART port, whether the WiFi module 201 and the memory chip 203 are in a communication state before accessing the memory chip 203, that is, whether the WiFi module 201 is currently accessing the memory chip 203, and if not, read data in the memory chip 203 through the first communication bus 205 and transmit the data to the display screen 204.
In the application, the main control chip 202 and the WiFi module 201 are connected through the communication port 206, the main control chip 202 and the WiFi module 201 transmit respective access state signals to the storage chip 203 through the communication port 206, the access state signals and data are transmitted through different communication lines, interference between the access state signals and the data during transmission is avoided, and reliability of the access state signals and the data transmission is improved.
Based on the same technical concept, the embodiment of the application further provides a household appliance comprising the display module. Wherein the household appliance can be a wall breaking machine, a soybean milk machine, a rice cooker, a pressure cooker and the like.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only for the preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.
Claims (8)
1. A display module of household appliances comprises a main control chip, a wireless fidelity (WiFi) module, a display screen and a storage chip, wherein the main control chip is in communication connection with the display screen, and the display screen is used for displaying data transmitted by the main control chip;
the WiFi module is used for transmitting the received data to the storage chip through the first communication bus so as to enable the storage chip to store the data transmitted by the WiFi module;
the main control chip is used for reading the data in the storage chip through the first communication bus and transmitting the data to the display screen.
2. The display module of claim 1, wherein the main control chip and the WiFi module further transmit respective access status signals to the memory chip, so that the main control chip and the WiFi module access the memory chip alternately.
3. The display module of claim 2, wherein the access status signals of the memory chip are transmitted between the main control chip and the WiFi module through the first communication bus.
4. The display module assembly of claim 2, wherein the main control chip and the WiFi module assembly are connected through a communication port, and the main control chip and the WiFi module assembly transmit respective access status signals to the memory chip through the communication port.
5. The display module according to any one of claims 1-4, wherein the first communication bus is a Serial Peripheral Interface (SPI) bus, an integrated circuit (I2C) bus, or a parallel bus.
6. The display module assembly of any one of claims 1-4, wherein the main control chip is connected to the display screen via a red, green, blue, RGB interface.
7. The display module according to any one of claims 1-4, wherein the data comprises a recipe having pictures and/or text.
8. An appliance comprising the display module of claims 1-7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021184785.XU CN212677189U (en) | 2020-06-23 | 2020-06-23 | Display module assembly and household electrical appliances of household electrical appliances |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021184785.XU CN212677189U (en) | 2020-06-23 | 2020-06-23 | Display module assembly and household electrical appliances of household electrical appliances |
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| CN212677189U true CN212677189U (en) | 2021-03-09 |
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| CN202021184785.XU Active CN212677189U (en) | 2020-06-23 | 2020-06-23 | Display module assembly and household electrical appliances of household electrical appliances |
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