WO2023024922A1

WO2023024922A1 - Information transmission method, apparatus, and system based on serial port thread

Info

Publication number: WO2023024922A1
Application number: PCT/CN2022/111754
Authority: WO
Inventors: 陈建磊; 黄嘉良
Original assignee: 广州视源电子科技股份有限公司; 广州视睿电子科技有限公司
Priority date: 2021-08-24
Filing date: 2022-08-11
Publication date: 2023-03-02
Also published as: CN115718719A

Abstract

Embodiments of the present application relate to the technical field of data processing. Disclosed are an information transmission method, apparatus, and system based on a serial port thread. The method comprises: after first data information to be sent to one external device is sent to the one external device by means of a serial port thread, modifying the state of the serial port thread from a message sending state to a message receiving state; and if no second data information sent by the one external device is received within a preset first time period, modifying the state of the serial port thread from the message receiving state to a serial port conversion state, and when third data information to be sent to another external device is obtained, sending the third data information to the another external device by means of the serial port thread. By means of the method in the embodiments of the present application, the problem that information transmission cannot be performed with a plurality of external devices due to insufficient built-in serial ports can be alleviated without increasing cost.

Description

Information transmission method, device and system based on serial thread

This application claims the priority of the Chinese patent application with the application number 202110975793.9 and the application title "Information Transmission Method, Device and System Based on Serial Port Thread" submitted to the China Patent Office on August 24, 2021, the entire contents of which are incorporated by reference in this application.

technical field

The present application relates to the field of data processing, and in particular to an information transmission method, device and system based on serial thread.

Background technique

At present, it is often encountered that the built-in serial port of the microcontroller unit is insufficient. When multiple external devices need to be connected, the built-in serial port is often not enough.

The existing solutions are generally re-selecting to have more serial port chips, or adding an external interface conversion chip, and converting the communication port of other protocols into a serial port for improvement, and these two existing solutions need to increase costs and revisions, and in When the hardware PCB has been finalized, the problem cannot be solved.

Therefore, there is an urgent need for a method that can improve the problem of inability to transmit information with multiple external devices caused by insufficient built-in serial ports without increasing costs.

Contents of the invention

The embodiment of the present application provides an information transmission method, device and system based on a serial port thread, which can solve the problem of inability to perform information transmission with multiple external devices caused by insufficient built-in serial ports. Described technical scheme is as follows:

In the first aspect, the embodiment of the present application provides an information transmission method based on a serial port thread, the method is applied to a micro control unit, and the micro control unit runs a serial port thread, and the method includes:

After the first data information to be sent to an external device is sent to the one external device through the serial port thread, the state of the serial port thread is changed from a message sending state to a message receiving state;

If the second data information sent by the one external device is not received within the preset first time period, the state of the serial port thread is changed from the message receiving state to the serial port conversion state, and when the information to be sent to the When receiving third data information from another external device, the third data information is sent to the other external device through the serial port thread.

Optionally, when the third data information to be sent to another external device is obtained, sending the third data information to the other external device through the serial port thread includes:

Modifying the state of the serial port thread from a serial port conversion state to an initialization state, and establishing a connection between the serial port thread and the control thread corresponding to the other external device;

Modifying the state of the serial port thread from an initialization state to a message waiting state;

If the third data information transmitted by the control thread corresponding to the other external device is obtained within the preset second time period, the third data information is sent to the other external device through the serial port thread .

Optionally, modify the state of the serial port thread from the serial port conversion state to the initialization state, including:

In response to the initialization operation initiated by the user, the state of the serial port thread is modified from the serial port conversion state to the initialization state.

Optionally, the method also includes:

If the second data message sent by the one external device is received within the preset first time period, the second data message is passed to the control thread corresponding to the one external device through the serial port thread, And modify the state of the serial port thread from the message receiving state to the message receiving complete state.

Optionally, after modifying the state of the serial port thread from the message receiving state to the message receiving complete state, it also includes:

If it is determined that no other data information transmitted by the control thread corresponding to the one external device is received within the preset third time period, the state of the serial port thread is changed from a message receiving complete state to a serial port conversion state.

Optionally, the method also includes:

In response to the initialization operation initiated by the user, the state of the serial port thread is changed from the initialization state to the message waiting state;

If the first data information delivered by the control thread corresponding to the one external device is obtained within the preset fourth time period, modify the state of the serial port thread from a message waiting state to a message sending state, and sending the first data information to the one external device through the serial port thread.

Optionally, in response to the initialization operation initiated by the user, modify the state of the serial port thread from the initialization state to the message waiting state, including:

In response to the initialization operation initiated by the user, the state of the serial port thread is set to the initialization state;

A connection between the serial port thread and the control thread corresponding to the one external device is established, and the state of the serial port thread is changed from an initialization state to a message waiting state.

Optionally, the method also includes:

If the first data information transmitted by the control thread corresponding to the one external device is not obtained within the preset fourth time period, the state of the serial port thread is changed from a message waiting state to a serial port conversion state.

In the second aspect, the embodiment of the present application provides an information transmission device based on a serial port thread, the device is applied to a micro control unit, and the micro control unit runs a serial port thread, and the device includes:

The first data information sending module is used to modify the state of the serial port thread from the message sending state to a message after the first data information to be sent to an external device is sent to the external device through the serial port thread receiving status;

The third data information sending module is used to modify the state of the serial port thread from the message receiving state to serial port conversion if the second data information sent by the one external device is not received within the preset first time period state, and when acquiring third data information to be sent to another external device, send the third data information to the other external device through the serial port thread.

Optionally, the third data information sending module is configured to:

In response to the initialization operation initiated by the user, the state of the serial port thread is changed from the serial port conversion state to the initialization state.

Optionally, the device also includes:

The second data information sending module is configured to transmit the second data information to the connected device through the serial port thread if the second data information sent by the one external device is received within the preset first time period. Describe a control thread corresponding to an external device, and modify the state of the serial port thread from a message receiving state to a message receiving complete state.

Optionally, the device also includes:

Other data information determination module, used to determine that other data information delivered by the control thread corresponding to the one external device is not received within the preset third time period, then change the state of the serial port thread from the message receiving completion state Modify to serial port conversion status.

Optionally, the device also includes:

The initialization module is used to modify the state of the serial port thread from the initialization state to the message waiting state in response to the initialization operation initiated by the user;

The first data information acquisition module is configured to: if the first data information delivered by the control thread corresponding to the one external device is acquired within the preset fourth time period, the state of the serial port thread is sent by a message The waiting state is changed to a message sending state, and the first data information is sent to the one external device through the serial port thread.

Optionally, initialize the module for:

Optionally, the device also includes:

The first data information judging module is configured to change the status of the serial port thread from The message waiting state is changed to the serial port conversion state.

In a third aspect, an embodiment of the present application provides an information transmission system based on a serial port thread, including: a micro-control unit and a plurality of external devices; the micro-control unit is electrically connected to each of the external devices;

The microcontroller unit is configured to execute the method as described in the first aspect.

In a fourth aspect, an embodiment of the present application provides a computer storage medium, where a plurality of instructions are stored in the computer storage medium, and the instructions are adapted to be loaded by a processor and execute the method as described in the first aspect.

In the fifth aspect, the embodiment of the present application provides a micro control unit, including: a processor and a memory; wherein, the memory stores a computer program, and the computer program is suitable for being loaded and executed by the processor as described in the first aspect the method described.

In a sixth aspect, an embodiment of the present application provides a computer program product, including a computer program, and when the computer program is executed by a processor, the method described in the first aspect is implemented.

In the embodiment of the present application, the method is applied to a micro-control unit, and the micro-control unit runs a serial port thread, and in the embodiment of the present application, the first data information to be sent to an external device is sent to the After the above-mentioned one external device, modify the state of the serial port thread from the message sending state to the message receiving state; if the second data information sent by the one external device is not received within the preset first time period, then the The state of the serial port thread is modified from the message receiving state to the serial port conversion state, and when the third data information to be sent to another external device is obtained, the third data information is sent to the said serial port thread through the serial port thread. another external device. By adopting the method in the embodiment of the present application, the problem of inability to transmit information with multiple external devices caused by insufficient built-in serial ports can be improved without increasing the cost.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic flow diagram of a serial port thread-based information transmission method provided in Embodiment 1 of the present application;

FIG. 2 is a schematic flow diagram of a method for transmitting information based on a serial port thread provided in Embodiment 2 of the present application;

3 is a schematic flow diagram of a method for transmitting information based on a serial port thread provided in Embodiment 3 of the present application;

Fig. 4 is a schematic diagram of a process of interaction between a micro control unit and an external device provided in Embodiment 3 of the present application;

FIG. 5 is a schematic structural diagram of an information transmission device based on a serial port thread provided in Embodiment 4 of the present application;

FIG. 6 is a schematic structural diagram of a serial thread-based information transmission system provided in Embodiment 5 of the present application;

FIG. 7 is a schematic structural diagram of a microcontroller unit provided by an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

It should be clear that the described embodiments are only some of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be Read as indicating or implying relative importance. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations. In addition, in the description of the present application, unless otherwise specified, "plurality" means two or more. "And/or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character "/" generally indicates that the contextual objects are an "or" relationship.

It should be noted that due to limited space, this specification does not exhaustively list all optional implementation modes. After reading the specification, those skilled in the art should be able to imagine that as long as the technical features do not contradict each other, any of the technical features Any combination can constitute an optional embodiment.

Each embodiment will be described in detail below.

Example 1

The embodiment of the present application discloses an information transmission method based on a serial port thread, and the method is applied to a micro control unit, wherein the micro control unit runs a serial port thread.

The serial port thread-based information transmission method provided by the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

Please refer to FIG. 1 , which is a flow chart of a method for transmitting information based on a serial port thread disclosed in the embodiment of the present application. The method includes the following steps:

S110. After the first data information to be sent to an external device is sent to the one external device through the serial port thread, modify the state of the serial port thread from a message sending state to a message receiving state.

In this embodiment, the serial port thread refers to a time-division multiplexing technology thread. Specifically, the time-division multiplexing technology is a technology that transmits different signals in the same channel in different time periods. An external device is a device that interacts with the microcontroller unit, where an external device can be a tablet, a smart phone, and a computer device. The first data information is information sent by the micro control unit to an external device, which may be notification data information or data information carrying data content. Exemplarily, it may be the image data information sent by the microcontroller unit to an external device.

In this embodiment, the state of the serial port thread is an index used to characterize the working conditions of the current serial port. Specifically, the state of the serial port thread can include: initialization state, message sending state, message receiving state, serial port conversion state, message waiting state and Message receiving completion status. Wherein, the initialization state refers to that each parameter of the serial port thread is in an initial setting state. Exemplarily, the initialization state may be that all parameters are 0. The message sending status means that the current serial port thread has data information to be sent and the serial port thread can execute the sending instruction of the data information. The message receiving state refers to the state where the serial port thread is waiting to receive data information sent by other external devices. The serial port conversion state refers to the state in which the serial port thread is converted from connecting one external device to another external device. The message waiting state refers to the state that the serial port thread is waiting for other threads to send data information. The message receiving completion status means that other external devices have successfully sent data information to the serial port thread.

S120. If the second data information sent by the one external device is not received within the preset first time period, modify the state of the serial port thread from the message receiving state to the serial port conversion state, and obtain the pending When sending the third data information to another external device, send the third data information to the other external device through the serial port thread.

In this embodiment, the preset first time period can be adjusted by itself, for example, it can be 20S or other time periods. The second data information is information for interaction between the external device and the micro control unit, and the data information may be feedback information for the first data information, or may be data information unrelated to the first data information. The other external device is an electronic device different from the one external device, wherein the other external device may be one or more, and the other external device may be of the same type as the first external device, or may be the same type as the other external device. A device with a different type of external device. Exemplarily, one external device may be a smart phone, and the other external device may also be a smart phone, or one external device may be a smart phone, and the other external device may be a tablet computer.

The third data information is information designated by the microcontroller unit to be sent to another external device.

In this embodiment, if the second data information is not received, it means that the current external device has no data information to interact with the microcontroller unit, and the state of the serial port thread does not need to be in the message receiving state. Currently, the micro control unit needs to interact with another external device. Before interacting with another external device, change the state of the serial port thread from the message receiving state to the serial port conversion state to instruct the micro control unit to interact with another external device. .

In this embodiment, after the first data information to be sent to an external device is sent to an external device through the serial port thread, if the second data message sent by an external device is not received within the preset first time period , then convert the serial port thread into interacting with another external device. Through the above technical solution, the problem of inability to transmit information with multiple external devices caused by insufficient built-in serial ports can be improved without increasing the cost.

Example 2

Referring to FIG. 2 , it is a flowchart of an information transmission method based on a serial port thread disclosed in the embodiment of the present application. The method includes the following steps:

S210. After the first data information to be sent to an external device is sent to the one external device through the serial port thread, modify the state of the serial port thread from a message sending state to a message receiving state.

S220. Determine whether the second data information sent by an external device is received within the preset first time period, if yes, perform S230; if not, perform S250.

S230. If the second data information sent by the one external device is received within the preset first time period, transfer the second data information to the control corresponding to the one external device through the serial port thread thread, and modify the state of the serial port thread from a message receiving state to a message receiving complete state.

In this embodiment, the control thread corresponding to an external device is a thread parallel to the serial port thread, both of which are configured in the micro control unit, and the control thread can process the received second data information.

If the second data message sent by an external device is received within the preset first time period, it will be sent to the corresponding control thread by the serial port thread, so that the control thread processes the second data message, and the serial port thread continues to execute other data messages simultaneously. operation. In this embodiment, after the second data information is successfully received, the state of the serial port thread is changed from the message receiving state to the message receiving complete state.

S240. If it is determined that no other data information transmitted by the control thread corresponding to the one external device is received within the preset third time period, modify the state of the serial port thread from the message receiving complete state to the serial port conversion state.

In this embodiment, the preset third time period is a time period that can be set by itself. If no other data information from an external device is received within this time period, it means that there is no data between an external device and the micro control unit. information to interact. Then the micro control unit can interact with another external device, and modify the state of the serial port thread from the state of message receiving completion to the state of serial port conversion.

S250. If the second data information sent by the one external device is not received within the preset first time period, modify the state of the serial port thread from the message receiving state to the serial port conversion state.

S260. Modify the state of the serial port thread from a serial port conversion state to an initialization state, and establish a connection between the serial port thread and a control thread corresponding to the other external device.

In this embodiment, after the state of the serial port thread is changed from the serial port conversion state to the initialization state, it indicates that the micro control unit will interact with another external device. Specifically, the serial port thread is first established to connect with the control thread, and the control thread corresponds to another external device. After the connection is established, the micro control unit can interact with another external device.

In this embodiment, the initialization operation initiated by the user may be to power on the micro control unit, and may also be an initialization operation set by the user, which is used to set the current state of the serial port thread to the initialization state.

S270. Change the state of the serial port thread from the initialization state to the message waiting state.

In this embodiment, the state of the serial port thread is changed from the initialization state to the message waiting state, and then the micro control unit can receive data information and process the data information.

S280. If the third data information transmitted by the control thread corresponding to the other external device is obtained within the preset second time period, send the third data information to the other external device through the serial port thread external device.

In this embodiment, the preset second time period may be the same time period as the first time period, or may be a time period different from the first time period. During this period of time, the third data information is sent to the serial port thread by the control thread, and the third data information is sent to another external device, so that the other external device receives the third data information, and in another external device. The third data message is processed. Wherein, the control thread corresponds to another external device.

In this embodiment, if the second data information sent by an external device is received within the preset first time period, the second data information is processed through the control thread. After interacting with an external device through the serial port thread, if no other data information for interacting with a device is received within the preset third time period, the change of the state of the serial port thread indicates that the micro control unit communicates with another external device. devices to interact. By adopting the technical means in this embodiment, the process of the micro-control unit interacting with one device can be completed, and after the interaction with one device is completely completed, the micro-control unit then interacts with another device. In this way, the complete interaction process with the device can be guaranteed without increasing the cost, and the interaction with multiple devices can be performed at different time periods.

Example 3

Referring to FIG. 3 , it is a flowchart of an information transmission method based on a serial port thread disclosed in the embodiment of the present application. The method includes the following steps:

S310. In response to the initialization operation initiated by the user, modify the state of the serial port thread from the initialization state to the message waiting state.

Optionally, in this embodiment, in response to the initialization operation initiated by the user, the state of the serial port thread is changed from the initialization state to the message waiting state, including:

In this embodiment, a connection is first established between the serial port thread and the control thread, and the control thread corresponds to an external device. After the connection is established, the micro control unit can interact with an external device. It should be noted that different control threads correspond to different external devices. After the connection between the micro control unit and an external device is established, the state of the serial port thread is changed from the initialization state to the message waiting state, so that the micro control unit receives data information sent by an external device.

S320. Determine whether the first data information transmitted by the control thread corresponding to an external device is acquired within the preset fourth time period; if yes, execute S330; if not, execute S340.

S330. If the first data information transmitted by the control thread corresponding to the one external device is obtained within the preset fourth time period, modify the state of the serial port thread from the message waiting state to the message sending state , and send the first data information to the one external device through the serial port thread.

S340. If the first data information transmitted by the control thread corresponding to the one external device is not obtained within the preset fourth time period, modify the state of the serial port thread from message waiting state to serial port conversion state.

In this embodiment, if no data information is received within the preset fourth time period, it means that an external device interacts with the micro control unit without data information, and the state of the serial port thread is modified so that the micro control unit communicates with another interact with external devices. Specifically, reference may be made to a schematic diagram of a process of interaction between a micro control unit and an external device shown in FIG. 4 . It can be seen from Figure 4 that the MCU interacts with different external devices in different time periods.

In this embodiment, by responding to the initialization operation initiated by the user, the state of the serial port thread is changed from the initialization state to the message waiting state, and it is judged whether the first data information is received within the preset fourth time period. Then, the interaction between the micro control unit and another external device is established through the modification of the state of the serial port thread. By adopting the above technical solution, the micro control unit can be better utilized, so that the micro control unit can more efficiently establish connections with external devices.

Example 4

The following are device embodiments of the present application, which can be used to implement the method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

Please refer to FIG. 5 , which shows a schematic structural diagram of an information transmission device based on a serial port thread provided by an exemplary embodiment of the present application. The information transmission device based on the serial port thread can be implemented as all or a part of the intelligent interactive panel through software, hardware or a combination of the two. The device includes a first data information sending module 510, a third data information sending module 520, a second data information sending module 530, other data information determination module 540, an initialization module 550, a first data information acquisition module 560 and a first data information Judgment module 570 .

The first data information sending module 510 is used to modify the state of the serial port thread from the message sending state to message receiving status;

The third data information sending module 520 is configured to modify the state of the serial port thread from the message receiving state to the serial port if the second data information sent by the one external device is not received within the preset first time period The state is changed, and when the third data information to be sent to another external device is obtained, the third data information is sent to the other external device through the serial port thread.

Optionally, the third data information sending module 520 is configured to:

Optionally, the device also includes:

The second data information sending module 530 is configured to, if the second data information sent by the one external device is received within the preset first time period, transfer the second data information to the user through the serial port thread The control thread corresponding to the one external device modifies the state of the serial port thread from a message receiving state to a message receiving complete state.

Optionally, the device also includes:

The other data information determination module 540 is configured to complete the state of the serial port thread by message receiving if it is determined that no other data information transmitted by the control thread corresponding to the one external device has been received within the preset third time period. The state is changed to the serial port conversion state.

Optionally, the device also includes:

The initialization module 550 is used to respond to the initialization operation initiated by the user, modifying the state of the serial port thread from the initialization state to the message waiting state;

The first data information acquiring module 560 is configured to change the state of the serial port thread from The message waiting state is changed to the message sending state, and the first data information is sent to the one external device through the serial port thread.

Optionally, the initialization module 550 is used for:

Optionally, the device also includes:

The first data information judging module 570 is configured to: if the first data information transmitted by the control thread corresponding to the one external device is not obtained within the preset fourth time period, then the state of the serial port thread Change from the message waiting state to the serial port conversion state.

It should be noted that, when the serial port thread-based information transmission device provided in the above-mentioned embodiments executes the serial port thread-based information transmission method, the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned Function allocation is accomplished by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the serial port thread-based information transmission device and the serial port thread-based information transmission method embodiment provided by the above embodiment belong to the same concept, and the implementation process thereof is detailed in the method embodiment, and will not be repeated here.

The serial numbers of the above embodiments of the present application are for description only, and do not represent the advantages and disadvantages of the embodiments.

In this embodiment, after the first data information to be sent to an external device is sent to an external device through the serial port thread, if the second data message sent by an external device is not received within the preset first time period , then convert the serial port thread into interacting with another external device. Through the above technical solution, it can be achieved without increasing the cost, and the problem of inability to transmit information with multiple external devices caused by the lack of built-in serial ports can be improved.

Example 5

The embodiment of the present application also provides a serial port thread-based information transmission system. For details, refer to the schematic structural diagram of a serial port thread-based information transmission system shown in FIG. 6 . Including: a micro control unit 610, a plurality of external devices 620; the micro control unit is electrically connected to each of the external devices;

The micro-control unit is used to execute the method steps of the embodiment shown in FIGS. 1-3 . For the specific execution process, please refer to the specific description of the embodiment shown in FIGS. 1-3 , which will not be repeated here.

Example 6

The embodiment of the present application also provides a computer storage medium, the computer storage medium can store a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing the method steps of the above-mentioned embodiments shown in Figures 1-3 For the specific execution process, refer to the specific description of the embodiments shown in FIGS. 1-3 , and details are not repeated here.

The device where the storage medium is located may be a micro control unit.

Example 7

Please refer to FIG. 7 , which provides a schematic structural diagram of a microcontroller unit according to an embodiment of the present application. As shown in FIG. 7 , the micro control unit 1000 may include: at least one processor 1001 and a memory 1005 .

Wherein, the processor 1001 may include one or more processing cores. The processor 1001 uses various interfaces and lines to connect various parts in the entire micro control unit 1000, by running or executing instructions, programs, code sets or instruction sets stored in the memory 1005, and calling data stored in the memory 1005, Various functions of the micro control unit 1000 are executed and data is processed. Optionally, the processor 1001 may use at least one of Digital Signal Processing (Digital Signal Processing, DSP), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), and Programmable Logic Array (Programmable Logic Array, PLA). implemented in the form of hardware. The processor 1001 may integrate one or a combination of a central processing unit (Central Processing Unit, CPU), an image processor (Graphics Processing Unit, GPU) and a modem. Among them, the CPU mainly handles the operating system, user interface and application programs, etc.; the GPU is used to render and draw the content that needs to be displayed on the display screen; the modem is used to handle wireless communication. It can be understood that the above modem may also not be integrated into the processor 1001, but implemented by a single chip.

Wherein, the memory 1005 may include a random access memory (Random Access Memory, RAM), and may also include a read-only memory (Read-Only Memory). Optionally, the memory 1005 includes a non-transitory computer-readable storage medium (non-transitory computer-readable storage medium). The memory 1005 may be used to store instructions, programs, codes, sets of codes or sets of instructions. The memory 1005 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), Instructions and the like for implementing the above method embodiments; the storage data area can store the data and the like involved in the above method embodiments. Optionally, the memory 1005 may also be at least one storage device located away from the aforementioned processor 1001 . As shown in FIG. 7 , the memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and an operation application program of the micro control unit.

In the micro control unit 1000 shown in FIG. 7, the processor 1001 can be used to call the operation application program of the micro control unit stored in the memory 1005, and specifically perform the following operations:

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present application is described with reference to flowcharts and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

Memory may include non-permanent storage in computer readable media, in the form of random access memory (RAM) and/or nonvolatile memory such as read only memory (ROM) or flash RAM. The memory is an example of a computer readable medium.

Computer-readable media, including both permanent and non-permanent, removable and non-removable media, can be implemented by any method or technology for storage of information. Information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Flash memory or other memory technology, Compact Disc Read-Only Memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, Magnetic tape cartridge, tape magnetic disk storage or other magnetic storage device or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media excludes transitory computer-readable media, such as modulated data signals and carrier waves.

It should also be noted that the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes Other elements not expressly listed, or elements inherent in the process, method, commodity, or apparatus are also included. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

The above are only examples of the present application, and are not intended to limit the present application. For those skilled in the art, various modifications and changes may occur in this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

A kind of information transmission method based on serial port thread, it is characterized in that, described method is applied to micro control unit, and described micro control unit runs serial port thread, and described method comprises:

After the first data information to be sent to an external device is sent to the one external device through the serial port thread, the state of the serial port thread is changed from a message sending state to a message receiving state;

If the second data information sent by the one external device is not received within the preset first time period, the state of the serial port thread is changed from the message receiving state to the serial port conversion state, and when the information to be sent to the When receiving third data information from another external device, the third data information is sent to the other external device through the serial port thread.
The method according to claim 1, characterized in that, when the third data information to be sent to another external device is obtained, the third data information is sent to the other external device through the serial port thread ,include:

Modifying the state of the serial port thread from a serial port conversion state to an initialization state, and establishing a connection between the serial port thread and the control thread corresponding to the other external device;

Modifying the state of the serial port thread from an initialization state to a message waiting state;

If the third data information transmitted by the control thread corresponding to the other external device is obtained within the preset second time period, the third data information is sent to the other external device through the serial port thread .
The method according to claim 2, wherein modifying the state of the serial port thread from a serial port conversion state to an initialization state includes:

In response to the initialization operation initiated by the user, the state of the serial port thread is changed from the serial port conversion state to the initialization state.
The method according to any one of claims 1-3, further comprising:

If the second data message sent by the one external device is received within the preset first time period, the second data message is passed to the control thread corresponding to the one external device through the serial port thread, And modify the state of the serial port thread from the message receiving state to the message receiving complete state.
The method according to claim 4, wherein, after modifying the state of the serial port thread from the message receiving state to the message receiving complete state, further comprising:

If it is determined that no other data information transmitted by the control thread corresponding to the one external device is received within the preset third time period, the state of the serial port thread is changed from a message receiving complete state to a serial port conversion state.
The method according to any one of claims 1-5, wherein the method further comprises:

In response to the initialization operation initiated by the user, the state of the serial port thread is changed from the initialization state to the message waiting state;

If the first data information delivered by the control thread corresponding to the one external device is obtained within the preset fourth time period, modify the state of the serial port thread from a message waiting state to a message sending state, and sending the first data information to the one external device through the serial port thread.
The method according to claim 6, wherein, in response to the initialization operation initiated by the user, the state of the serial port thread is changed from the initialization state to the message waiting state, including:

In response to the initialization operation initiated by the user, the state of the serial port thread is set to the initialization state;

Establish the connection between the serial port thread and the control thread corresponding to the one external device, and modify the state of the serial port thread from the initialization state to the message waiting state.
The method according to claim 6 or 7, characterized in that the method further comprises:

If the first data information transmitted by the control thread corresponding to the one external device is not obtained within the preset fourth time period, the state of the serial port thread is changed from a message waiting state to a serial port conversion state.
A kind of information transmission device based on serial port thread, it is characterized in that, described device is applied to micro-control unit, and described micro-control unit runs with serial port thread, and described device comprises:

The first data information sending module is used to modify the state of the serial port thread from the message sending state to a message after the first data information to be sent to an external device is sent to the external device through the serial port thread receiving status;

The third data information sending module is used to modify the state of the serial port thread from the message receiving state to serial port conversion if the second data information sent by the one external device is not received within the preset first time period state, and when acquiring third data information to be sent to another external device, send the third data information to the other external device through the serial port thread.
The device according to claim 9, wherein the third data information sending module is configured to:

Modifying the state of the serial port thread from a serial port conversion state to an initialization state, and establishing a connection between the serial port thread and the control thread corresponding to the other external device;

Modifying the state of the serial port thread from an initialization state to a message waiting state;

If the third data information transmitted by the control thread corresponding to the other external device is obtained within the preset second time period, the third data information is sent to the other external device through the serial port thread .
The device according to claim 10, wherein the third data information sending module is configured to:

In response to the initialization operation initiated by the user, the state of the serial port thread is changed from the serial port conversion state to the initialization state.
The device according to any one of claims 9-11, wherein the device further comprises:

The second data information sending module is configured to transmit the second data information to the connected device through the serial port thread if the second data information sent by the one external device is received within the preset first time period. Describe a control thread corresponding to an external device, and modify the state of the serial port thread from a message receiving state to a message receiving complete state.
The device according to claim 12, wherein the device further comprises:

Other data information determination module, used to determine that other data information delivered by the control thread corresponding to the one external device is not received within the preset third time period, then change the state of the serial port thread from the message receiving completion state Modify to serial port conversion status.
The device according to any one of claims 9-13, wherein the device further comprises:

The initialization module is used to modify the state of the serial port thread from the initialization state to the message waiting state in response to the initialization operation initiated by the user;

The first data information acquisition module is configured to: if the first data information delivered by the control thread corresponding to the one external device is acquired within the preset fourth time period, the state of the serial port thread is sent by a message The waiting state is changed to a message sending state, and the first data information is sent to the one external device through the serial port thread.
The device according to claim 14, wherein the initialization module is used for:

In response to the initialization operation initiated by the user, the state of the serial port thread is set to the initialization state;

A connection between the serial port thread and the control thread corresponding to the one external device is established, and the state of the serial port thread is changed from an initialization state to a message waiting state.
The device according to claim 14 or 15, wherein the device further comprises:

The first data information judging module is configured to change the status of the serial port thread from The message waiting state is changed to the serial port conversion state.
An information transmission system based on a serial port thread, characterized in that it includes: a micro-control unit and a plurality of external devices; the micro-control unit is electrically connected to each of the external devices;

The micro control unit is configured to execute the method according to any one of claims 1-8.
A computer storage medium, characterized in that the computer storage medium stores a plurality of instructions, and the instructions are adapted to be loaded by a processor and execute the method according to any one of claims 1-8.
A micro control unit, characterized in that it comprises: a processor and a memory; wherein, the memory stores a computer program, and the computer program is suitable for being loaded by the processor and executing any one of claims 1-8 item method.
A computer program product, comprising a computer program, which implements the method according to any one of claims 1-8 when the computer program is executed by a processor.