CN104917619A - Wakeup control method and terminal - Google Patents

Abstract

A wake-up control method and terminal, including generating a wake-up frame according to a wake-up signal identifiable by a terminal to be woken up in a sleep mode and a handshake signal identifiable in a working mode, and the wake-up frame is used to wake up the terminal to be woken up and trigger Establishing a handshake with the terminal to be awakened; periodically sending the wakeup frame to the terminal to be awakened. The wake-up signal and the handshake signal of the present invention are transmitted through the same wake-up frame, which simplifies the complex process of wake-up control; in addition, the present invention does not need to add new hardware ports for connecting with external interrupts, saving hardware resources and space.

Description

A wake-up control method and terminal

technical field

The invention belongs to the communication field, and in particular relates to a wake-up control method and a terminal.

Background technique

Universal Asynchronous Receiver and Transmitter (UART, Universal Asynchronous Receiver and Transmitter) serial port is a commonly used asynchronous serial interface. Many terminals, such as home appliances, use four-wire communication lines to save space and pin resources when using serial port communication. . In such a system, if one of the communication parties wants to enter deep sleep, the serial port function needs to be turned off. When the communication party needs to send data to the other party, the other party may enter the sleep mode, which will cause the data to fail to be correct on time. communicated to the other party. Alternatively, both parties do not go to sleep. Although the data can reach the other party in real time, the power consumption is relatively large, which does not meet the requirements of low power consumption and environmental protection.

In the existing system wake-up method, terminal A first sends a wake-up signal to terminal B to be woken up, terminal B recognizes the wake-up signal and switches from sleep mode to working mode, then terminal A sends a handshake signal to terminal B, terminal B Data interaction with terminal A can only be performed after identifying the handshake signal; in the above method, the process for terminal A to wake up terminal B is complicated. In addition, the general wake-up signal and handshake signal are transmitted on different lines, and terminal B also needs to be specially set. For new hardware ports connected to external interrupts, the above method will obviously occupy more hardware resources and space. At the same time, in order to realize the wake-up function, it is necessary to write codes for these custom signal control processes on the software, which further increases the complexity of the software. .

Contents of the invention

In view of this, in order to solve the problem that the wake-up control method in the prior art has a complex process and occupies hardware resources and space, an object of the present invention is to propose a wake-up control method. In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not an overview, nor is it intended to identify key/critical elements or delineate the scope of these embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

In some optional embodiments, the wake-up control method includes:

Generate a wake-up frame according to a wake-up signal identifiable by the terminal to be woken up in sleep mode and a handshake signal identifiable in work mode; the wake-up frame is used to wake up the terminal to be woken up and trigger establishment of a handshake with the terminal to be woken up;

periodically sending the wake-up frame to the terminal to be woken up.

In some optional embodiments, the wake-up control method includes:

Receive wake-up frames from other terminals;

The wake-up frame is parsed according to the current mode, and corresponding operations are triggered to be executed.

Another object of the present invention is to provide a wake-up control terminal.

In some optional embodiments, the wake-up control terminal includes:

A generating unit, configured to generate a wake-up frame according to a wake-up signal identifiable by the terminal to be woken up in sleep mode and a handshake signal identifiable in work mode; the wake-up frame is used to wake up the terminal to be woken up and trigger communication with the terminal Wake up the terminal to establish a handshake;

A sending unit, configured to periodically send the wake-up frame to the terminal to be woken up.

In some optional embodiments, the wake-up control terminal includes:

a receiving unit, configured to receive wake-up frames sent by other terminals;

The triggering unit is configured to parse the wake-up frame according to the current mode, and trigger corresponding operations to be executed.

Adopt above-mentioned embodiment, can reach following technical effect:

Simplify the complex process in wake-up control, the wake-up signal and handshake signal are transmitted through the same wake-up frame;

No need to add new hardware ports for connecting with external interrupts;

Save more hardware resources and space;

Reduces the complexity of writing code in software for these custom signal control flows for wake-up functionality.

To the above and related ends, one or more embodiments comprise the features hereinafter specified and particularly pointed out in the claims. The following description and drawings detail certain exemplary aspects and are indicative of but a few of the various ways in which the principles of various embodiments may be employed. Other benefits and novel features will become apparent upon consideration of the following detailed description in conjunction with the accompanying drawings, and the disclosed embodiments are intended to include all such aspects and their equivalents.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

FIG. 1 shows a schematic diagram of a wake-up control method in an embodiment;

FIG. 2 shows a schematic diagram of a wake-up control method in an embodiment;

FIG. 3 shows a schematic diagram of a wake-up control terminal in an embodiment;

Fig. 4 shows a schematic diagram of a wake-up control terminal in an embodiment.

Detailed ways

The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. These embodiments of the present invention may be referred to herein, individually or collectively, by the term "invention", which is for convenience only and is not intended to automatically limit the application if in fact more than one invention is disclosed The scope is any individual invention or inventive concept.

As used herein, a "terminal" is defined as an electronic device having a microcontroller or microprocessor or processor, such as a desktop computer, mobile computer, laptop computer, notebook computer, tablet computer, server computer, handheld computer, handheld device , Pocket Computer (PDA, PersonalDigital Assistant), handheld PDA device, on-board device, off-board device, hybrid device (such as combining the functionality of a cellular phone with the functionality of a PDA device), consumer device, vehicle-mounted device, off-board device, mobile Or portable devices, non-mobile or non-portable devices, cellular phones, personal communications services (PCS, Personal Communications Service) devices, PDA devices combined with wireless communication devices, mobile or portable Global Positioning System (GPS, Global Positioning System) devices, digital televisions Broadcast (DVB, Digital Video Broadcasting) devices, smaller computing devices, non-desktop computers, "smaller performance" devices, ultra-mobile devices, ultra-mobile PCs, mobile Internet devices, "Origami" devices or computing devices, A device or other device that supports Dynamically Composable Computing (DCC). Or smart appliances with wifi functions, such as: wifi air conditioners, wifi refrigerators, wifi TVs, wifi washing machines, wifi DVD players, wifi lamps, or other devices.

FIG. 1 is a schematic diagram of a method of an exemplary embodiment of the present invention.

As shown in Figure 1, in some illustrative embodiments, the wake-up control method includes the following steps:

In step S1, it is assumed that terminal A is in working mode and terminal B is in sleep mode. When terminal A needs to communicate with terminal B, terminal A will generate a wake-up frame "please wake up" in the corresponding data format according to the recognizable wake-up signal of terminal B in sleep mode and the recognizable handshake signal in working mode;

The wake-up frame is used to wake up the terminal B and trigger the establishment of a handshake with the terminal B. Terminal A will continuously send a wake-up frame "please wake up" and wait for terminal B to respond. Terminal B can recognize the wake-up frame in sleep mode The wake-up signal in , but cannot receive the handshake signal. When terminal B enters the working mode, it can parse all the data in the wake-up frame and identify the data corresponding to the handshake signal;

Preferably, the wake-up frame can be a normal communication data packet, conforming to the communication protocol between A and B, that is, including: packet header, packet length, packet body, checksum and other parts;

Preferably, the data packet is specific data, which can be a string of "0"; it can be a string of "1"; or first a string of "0" followed by a string of "1"; or first a string of "1" followed by a string of "0".

Preferably, the number of data in the data packet, such as "1" and "0", has specific requirements;

Preferably, the content of the wake-up frame is related to the microprocessor used by terminal B, and terminal A is based on the sleep wake-up mode (wake-up signal) of the microprocessor used by terminal B, which is high-level wake-up or low-level wake-up or rising edge Wake-up or falling edge wake-up, set the wake-up frame as the corresponding data format;

Step S2, the terminal B in the sleep mode is awakened by the wake-up frame, that is, the terminal B is awakened by recognizing the wake-up signal, and the terminal B enters the working mode after being awakened;

Step S3, because terminal A will continuously send wake-up frames to terminal B when it does not receive the confirmation message indicating "ready" from terminal B, so terminal B will receive the wake-up message from terminal A again after entering the working mode frame, parsing the wake-up frame and identifying data corresponding to the handshake signal in the wake-up frame, and then replying to terminal A with a confirmation message "ready";

Preferably, the receiving port of terminal B not only has the function of receiving signals, but also has an external interrupt function;

Preferably, when terminal B is in sleep mode, the receiving port of terminal B is set as an external interrupt function;

Preferably, when terminal B is in working mode, the receiving port of terminal B will be set as a signal receiving function;

Preferably, when the terminal B is woken up, the process of entering the working mode includes: setting the receiving port of the terminal B from the external interrupt function to the signal receiving function;

Preferably, the communication process between terminal A and terminal B can be serial port communication;

Preferably, the command or data transmission process between terminal A and terminal B involves 4 ports, which are respectively the receiving port (RxD, Receive Data) and the transmitting port (TxD, TransmitData) of terminal A and the receiving port RxD and The sending port TxD; that is, the port through which terminal A sends the wake-up frame may be the TxD port; the port through which terminal B receives the handshake signal is the RxD port, and the TxD port of terminal B sends confirmation information to terminal A, and the RxD port of terminal A receive the acknowledgment;

Step S4, after terminal A receives the confirmation message "ready", it completes the handshake process with terminal B, terminal A stops sending wake-up frames, and starts normal interaction with terminal B, that is, data communication;

Preferably, terminal A sends data or commands to terminal B, and terminal B performs corresponding operations after receiving the data or commands sent by terminal A;

Preferably, after completing the corresponding operation according to the data or command sent by terminal A, terminal B sends a confirmation message to terminal A to indicate the completion of the operation;

Preferably, the above-mentioned initiator of sending data or commands may also be terminal B. Correspondingly, after receiving the data or commands sent by terminal B, terminal A may send a confirmation message to terminal B to indicate the completion of the operation;

Preferably, the number of command or data transmissions between terminal A and terminal B is at least one;

Preferably, after the RxD port of terminal A receives the confirmation information, the TxD port of terminal A stops sending wake-up frames to terminal B;

Step S5, after the data communication is completed, terminal A or terminal B sets the other party to enter the sleep mode, or automatically enters the sleep mode because the two parties have no data communication for a long time;

Preferably, the terminal A or B sends a dormancy notification to the other terminal, notifying the other party to enter the dormancy mode;

Preferably, the terminal A or B adjusts the terminal to enter the sleep mode after receiving the sleep notification sent by the other party;

Preferably, the process of terminal A or B adjusting the terminal to enter the sleep mode includes adjusting the function of the receiving port in the function of receiving signals to an external interrupt function;

Preferably, the receiving port is an RxD port;

Step S6, when the terminal A or B in the sleep mode needs to communicate with the other party, it can be automatically woken up by the internal clock, so that the terminal enters the working mode;

Preferably, after the terminal A or B is automatically awakened by the internal clock, the function of the port with the external interrupt function on the terminal is adjusted to the signal receiving function;

Preferably, the port with the external interrupt function of the terminal A or B is a receiving port, then after the terminal is awakened, the function of the receiving port with the external interrupt function is adjusted to a signal receiving function;

Step S7, enter the next application cycle, that is, if terminal A needs to communicate with B, it automatically enters the working mode, and repeats step S1;

Preferably, if the terminal A is in the sleep mode, the process of automatically entering the working mode includes automatically waking up the internal clock, so that the terminal A enters the working mode;

Preferably, the process of terminal A entering the working mode includes adjusting the function of the receiving port, that is, adjusting the function of the receiving port in the external interrupt function to the signal receiving function;

Preferably, the receiving port is an RxD port.

Preferably, after the system is started, both terminal A and terminal B are initialized, and this process can be completed automatically or by human control; if no communication is required, terminal A notifies terminal B to enter sleep mode;

Preferably, terminal A sends a sleep notification to terminal B, notifying terminal B to enter sleep mode, after terminal B receives the sleep notice, sets RxD as an external interrupt function, and terminal B enters sleep mode.

As shown in Figure 2, in some illustrative embodiments, the method for wake-up control further includes before step S1:

Step S0, after the system is started, terminal A and terminal B are initialized at the same time, if no communication is required, terminal A sets terminal B to enter sleep mode;

Preferably, terminal A sends a sleep notification to terminal B, notifying terminal B to enter the sleep mode;

Preferably, terminal B receives the above-mentioned dormancy notification, sets the function of the RxD port in the function of receiving information as an external interrupt function, and then executes corresponding steps to make the machine enter the dormancy mode.

As shown in FIG. 3, a terminal 10 for wake-up control includes:

The generating unit 101 is configured to generate a wake-up frame according to a wake-up signal identifiable by the terminal to be woken up in the sleep mode and a handshake signal identifiable in the working mode; the wake-up frame is used to wake up the terminal to be woken up and trigger the communication with the The terminal to be woken up establishes a handshake;

The sending unit 102 is configured to periodically send the wake-up frame to the terminal to be woken up.

In some illustrative embodiments, the terminal 10 further includes:

The receiving unit 103 is configured to receive the acknowledgment information indicating readiness sent back by the terminal to be awakened in response to the wake-up frame.

In some illustrative embodiments, the terminal 10 further includes:

The stopping unit 104 is configured to stop sending the wake-up frame to the terminal to be woken up after the receiving unit 103 receives the confirmation information.

In some illustrative embodiments, the terminal 10 further includes:

The sleep unit 105 is configured to adjust the function of the receiving port of the local terminal for receiving signals from the signal receiving function to the external interrupt function when entering the sleep mode.

As shown in Figure 4, a wake-up control terminal 20 includes:

a receiving unit 201, configured to receive wake-up frames sent by other terminals;

The triggering unit 202 is configured to parse the wake-up frame according to the current mode, and trigger corresponding operations to be executed.

In some illustrative embodiments, the triggering unit 202 further includes:

The first trigger subunit 2021 is configured to analyze the wake-up frame and trigger entry into the working mode when in the dormant mode;

The second triggering subunit 2022 is configured to analyze the wake-up frame and trigger the handshake process when it is in the working mode.

In some demonstrative embodiments, the number of wake-up frames is multiple, and in sleep mode, the trigger unit 202 receives at least one wake-up frame for triggering entry into the working mode, parses the wake-up frame and triggers entry into Operating mode;

After entering the working mode, the triggering unit 202 receives at least one wake-up frame for triggering a handshake process, parses the wake-up frame and triggers a handshake process.

In some illustrative embodiments, the terminal 20 includes:

The replying unit 203 is configured to, after the second triggering subunit 2022 or the triggering unit 202 receives the wake-up frame triggering the handshake process, reply to the terminal with confirmation information indicating readiness.

In some illustrative embodiments, the receiving unit 201 further includes:

The receiving subunit 2011 is configured to receive the wake-up frame through the receiving port of the local end; wherein, the receiving port has an external interrupt function; when the local end is in the dormant mode, the receiving subunit 2011 receives a After the wake-up frame in the working mode, the first triggering subunit 2021 or the triggering unit 202 adjusts the function of the receiving port in the external interrupt function to the function of receiving signals.

In some illustrative embodiments, the terminal 20 further includes:

The sleep unit 204 is configured to adjust the function of the receiving port, which is in the function of receiving signals, to the function of the external interrupt when it needs to switch from the working mode to the sleeping mode.

Adopt above-mentioned embodiment, can reach following technical effect:

Simplifies the complex process in sleep control, the wake-up signal and handshake signal are transmitted through the same wake-up frame;

No need to add new hardware ports for connecting with external interrupts;

Reduce the occupation of hardware resources and space;

Reduce the complexity of adding software to write codes for these custom signal control flow in software to realize the wake-up function.

Those skilled in the art should also understand that various illustrative logical blocks, modules, circuits and algorithm steps described in conjunction with the embodiments herein may be implemented as electronic hardware, computer software or a combination thereof. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (20)

1. A wake-up control method, characterized in that, comprising: Generate a wake-up frame according to a wake-up signal identifiable by the terminal to be woken up in sleep mode and a handshake signal identifiable in work mode; the wake-up frame is used to wake up the terminal to be woken up and trigger establishment of a handshake with the terminal to be woken up; periodically sending the wake-up frame to the terminal to be woken up. 2. The method of claim 1, further comprising: receiving the ready confirmation information replied by the terminal to be woken up in response to the wakeup frame. 3. The method of claim 2, further comprising: After receiving the confirmation information, stop sending the wake-up frame to the terminal to be woken up. 4. The method according to any one of claims 1 to 3, further comprising: When it is necessary to enter the sleep mode, the function of the receiving port for receiving signals at the local end is adjusted from the signal receiving function to the external interrupt function. 5. A wake-up control method, characterized in that, comprising: Receive wake-up frames from other terminals; The wake-up frame is parsed according to the current mode, and corresponding operations are triggered to be executed. 6. The method according to claim 5, wherein the process of parsing the wake-up frame according to the current mode and triggering the corresponding operation comprises: when in sleep mode, parsing the wake-up frame and triggering Enter working mode; When in the working mode, analyze the wake-up frame and trigger the handshake process. 7. The method according to claim 5, wherein the number of the wake-up frames is multiple, and in the dormant mode, at least one wake-up frame for triggering entry into the work mode is received, the wake-up frame is parsed and triggered Enter working mode; After entering the working mode, at least one wake-up frame for triggering the handshake process is received again, the wake-up frame is parsed, and the handshake process is triggered. 8. The method according to claim 6 or 7, further comprising: After receiving the wake-up frame that triggers the handshake process, Reply to the terminal with acknowledgment information indicating readiness. 9. The method according to claim 6 or 7, wherein the process of receiving wake-up frames from other terminals comprises: receiving the wake-up frames through a receiving port of the local end; wherein the receiving port has External interrupt function: when the local end is in sleep mode, after receiving the wake-up frame used to trigger entry into the working mode, adjust the function of the receiving port in the external interrupt function to the function of receiving signals. 10. The method of claim 9, further comprising: When it is necessary to switch from the working mode to the sleep mode, the function of the receiving port in the function of receiving signals is adjusted to the function of the external interrupt. 11. A wake-up control terminal, characterized in that, comprising: A generating unit, configured to generate a wake-up frame according to a wake-up signal identifiable by the terminal to be woken up in sleep mode and a handshake signal identifiable in work mode; the wake-up frame is used to wake up the terminal to be woken up and trigger communication with the terminal Wake up the terminal to establish a handshake; A sending unit, configured to periodically send the wake-up frame to the terminal to be woken up. 12. The terminal according to claim 11, further comprising: The receiving unit is configured to receive confirmation information indicating readiness sent back by the terminal to be awakened in response to the wake-up frame. 13. The terminal according to claim 12, further comprising: a stopping unit, configured for the receiving unit to stop sending the wake-up frame to the terminal to be woken up after receiving the confirmation information. 14. The terminal according to any one of claims 11 to 13, further comprising: The sleep unit is configured to adjust the function of the receiving port at the local end for receiving signals from the signal receiving function to the external interrupt function when entering the sleep mode. 15. A wake-up control terminal, characterized in that, comprising: a receiving unit, configured to receive wake-up frames sent by other terminals; The triggering unit is configured to parse the wake-up frame according to the current mode, and trigger corresponding operations to be executed. 16. The terminal according to claim 15, wherein the trigger unit comprises: The first triggering subunit is configured to analyze the wake-up frame and trigger entry into the working mode when in the dormant mode; The second triggering subunit is configured to analyze the wake-up frame and trigger a handshake process when in the working mode. 17. The terminal according to claim 15, wherein the number of the wake-up frames is multiple, and in the dormant mode, the trigger unit receives at least one wake-up frame for triggering entry into the working mode, and analyzes the Wake up the frame and trigger to enter working mode; After entering the working mode, the triggering unit receives at least one wake-up frame for triggering the handshake process, parses the wake-up frame and triggers the handshake process. 18. The terminal according to claim 16 or 17, further comprising: The replying unit is configured to, after the second triggering subunit or the triggering unit receives the wake-up frame triggering a handshake process, reply to the terminal with confirmation information indicating readiness. 19. The terminal according to claim 16 or 17, wherein the receiving unit comprises: The receiving subunit is configured to receive the wake-up frame through the receiving port of the local end; wherein the receiving port has an external interrupt function; when the local end is in sleep mode, the receiving subunit receives After the wake-up frame, the first triggering subunit or the triggering unit adjusts the function of the receiving port in the external interrupt function to the function of receiving signals. 20. The terminal according to claim 19, further comprising: The sleep unit is configured to adjust the function of the receiving port, which is in the function of receiving signals, to the function of the external interrupt when it needs to switch from the working mode to the sleeping mode.