CN115309462A

CN115309462A - Equipment awakening method, device, system, electronic equipment and storage medium

Info

Publication number: CN115309462A
Application number: CN202210944910.XA
Authority: CN
Inventors: 杨莉; 赵目龙; 赵楠楠; 王泽尉; 焦育成; 苗欣
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2022-08-08
Filing date: 2022-08-08
Publication date: 2022-11-08
Also published as: WO2024032441A1

Abstract

The invention discloses a device awakening method, a device, a system, electronic equipment and a storage medium. The method is applied to a controller in an equipment awakening system, and comprises the steps of reading bus message information and analyzing the bus message information to obtain a message identifier under the condition of receiving a driving awakening signal sent by a transceiver based on an awakening sequence; and awakening the connected external equipment under the condition that the message identification meets the awakening condition. The invention realizes the specific frame awakening function by reading and identifying the message identification in the bus message in the Controller, CAN realize the specific frame awakening function on a Controller Area Network (CAN) bus transceiver with low cost, reduces the cost of a CAN bus transceiver chip, reduces the Area of the chip and simultaneously reduces the complexity of the routing of a Printed Circuit Board (PCB).

Description

Equipment awakening method, device, system, electronic equipment and storage medium

Technical Field

The present invention relates to the field of vehicle control technologies, and in particular, to a device wake-up method, apparatus, system, electronic device, and storage medium.

Background

Along with the improvement of vehicle electronic function and complexity, the number of whole car CAN nodes is showing to increase, simultaneously, in order to reduce whole car static current, more and more controllers require to possess the function that CAN bus specific frame awakens up.

At present, hardware implementation schemes for CAN bus specific frame wake-up function requirements are all implemented by adopting a CAN bus transceiver with a specific frame wake-up function. However, the CAN bus transceiver chip with the specific frame wake-up function has high cost, large area and complicated PCB routing.

Disclosure of Invention

The invention provides a device awakening method, a device, a system, electronic equipment and a storage medium, which are used for solving the problems of high chip cost, large area and complex PCB wiring of a CAN bus transceiver adopted in the prior art.

According to an aspect of the present invention, there is provided a device wake-up method, applied to a controller in a device wake-up system, the method including:

under the condition of receiving a driving wake-up signal sent by a transceiver based on a wake-up sequence, reading bus message information, and analyzing the bus message information to obtain a message identifier;

and awakening the connected external equipment under the condition that the message identification meets the awakening condition.

According to another aspect of the present invention, there is provided a device wake-up apparatus, wherein a controller is disposed in the device wake-up system, the apparatus includes:

the message identification determining module is used for reading bus message information and analyzing the bus message information to obtain a message identification under the condition of receiving a driving wake-up signal sent by the transceiver based on the wake-up sequence;

and the external equipment awakening module is used for awakening the connected external equipment under the condition that the message identification meets the awakening condition.

According to another aspect of the present invention, there is provided a device wake-up system, comprising: a transceiver and a controller;

the transceiver is electrically connected with the controller and is used for detecting a received level sequence and sending an interface driving awakening instruction to the controller when the detected level sequence is an awakening sequence;

the controller is electrically connected with the external equipment and used for reading bus message information under the condition of receiving a drive awakening instruction, analyzing the bus message information to obtain a message identifier, judging whether the message identifier meets an awakening condition or not, and awakening the external equipment under the condition of meeting the awakening condition.

According to another aspect of the present invention, there is provided an electronic apparatus including:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein, the first and the second end of the pipe are connected with each other,

the memory stores a computer program executable by the at least one processor, the computer program being executable by the at least one processor to enable the at least one processor to perform the device wake-up method according to any of the embodiments of the invention.

According to another aspect of the present invention, there is provided a computer-readable storage medium having stored thereon computer instructions for causing a processor to execute the method of the apparatus according to any one of the embodiments of the present invention.

According to the technical scheme of the embodiment of the invention, the specific frame awakening function is realized by reading and identifying the message identification in the bus message in the controller, the problems of high chip cost, large area and complicated PCB wiring of the CAN bus transceiver adopted in the prior art are solved, the specific frame awakening function CAN be realized on the low-cost CAN bus transceiver, the cost of the CAN bus transceiver chip is reduced, the area of the chip is reduced, and the complexity of the PCB wiring is reduced.

It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a flowchart of a device wake-up method according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a frame structure of a CAN bus message provided in the first embodiment of the present invention;

fig. 3 is a timing diagram illustrating a wake-up procedure of a transceiver according to an embodiment of the invention;

fig. 4 is a flowchart of a wake-up procedure of an external device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a device wake-up apparatus according to a second embodiment of the present invention;

fig. 6 is a schematic structural diagram of a device wake-up system according to a third embodiment of the present invention;

fig. 7 is a circuit diagram of a device wake-up circuit according to a third embodiment of the present invention;

fig. 8 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example one

Fig. 1 is a flowchart of a device wake-up method according to an embodiment of the present invention, where the embodiment is applicable to a case where a specific frame wake-up function is implemented on a low-cost CAN bus transceiver, and the method CAN be executed by a device wake-up apparatus, where the device wake-up apparatus CAN be implemented in a hardware and/or software manner, and the device wake-up apparatus CAN be configured in a device wake-up system.

As shown in fig. 1, the method includes:

s110, under the condition that a drive wake-up signal sent by a transceiver based on a wake-up sequence is received, reading bus message information, and analyzing the bus message information to obtain a message identifier.

Specifically, when the transceiver receives the wake-up sequence, the transceiver automatically generates a driving wake-up signal and sends the driving wake-up signal to the controller. In this embodiment, the controller receives a driving wake-up signal sent by the transceiver, receives a bus message corresponding to the driving wake-up signal, reads the bus message to obtain bus message information, and analyzes the bus message information to obtain a message identifier; the bus message information refers to message information obtained by reading a CAN bus message, and correspondingly, the message identifier may be an identifier ID in the bus message information. It should be noted that the transceiver provided in this embodiment has an arbitrary frame wake-up function, that is, the transceiver wakes up the external device when receiving an arbitrary wake-up sequence.

For convenience of understanding, fig. 2 is a schematic diagram of a frame structure of a CAN bus packet according to an embodiment of the present invention, and as shown in fig. 2, the CAN bus packet includes a start frame (SOF), an arbitration (arbitration) field, a control field (control), a DATA field (DATA), a Cyclic Redundancy Check (CRC), an acknowledgement field (ACK), and an end frame (EOF). The arbitration field includes an identification ID field and a remote Request Reception (RRS) field, and is used to indicate the priority level of data, and the smaller the value of the identification ID field, the higher the priority. The RRS field is used to distinguish the CANFD message as a data frame or a remote frame. And the control domain is used for controlling the length of the message data domain data. The system comprises an ID extension (IDE) field, an FDF field and a data length field (DLC), wherein the IDE field is used for distinguishing whether a message is a standard frame or an extension frame, the FDF field is used for distinguishing whether the message is a CAN message or a CAN bus message, and the DLC field is used for data field byte number.

On the basis of the above embodiment, optionally, the controller includes an interface driving module; the reading bus message information, analyzing the bus message information to obtain a message identifier, including: and awakening the interface driving module based on the driving awakening signal, reading bus message information based on the interface driving module, and analyzing the bus message information to obtain the message identifier.

The interface driver module is configured to read and analyze the bus packet, and identify whether the bus packet is a specific frame packet, and specifically, the interface driver module may be a CAN interface driver software disposed in the controller, which is not limited herein. In this embodiment, the transceiver generates a driving wake-up signal based on the wake-up sequence and sends the driving wake-up signal to the controller, and sends a corresponding bus packet to the controller, the controller receives the driving wake-up signal and the bus packet, and wakes up the interface driving module based on the driving wake-up signal, the interface driving module reads the bus packet to obtain bus packet information, and analyzes the read bus packet information to obtain a packet identifier. It should be noted that the bus message received by the transceiver from the CAN bus is an electrical signal, and the transceiver converts the received electrical signal into a logic signal according to the CAN-bus standard and sends the logic signal to the controller.

S120, under the condition that the message identification meets the awakening condition, awakening the connected external equipment.

The wakeup condition refers to a condition for waking up an external device, and specifically, the wakeup condition may be that the packet identifier matches a specific wakeup frame identifier, or that the packet identifier is a specific wakeup frame identifier, which is not limited herein. In this embodiment, the interface driver module determines whether the packet identifier satisfies the wake-up condition, and wakes up the connected external device when the packet identifier satisfies the wake-up condition. The external device includes, but is not limited to, an engine, a transmission, a body electrical appliance, etc., and is controlled by an Electronic Control Unit (ECU), and when the message identifier satisfies the wake-up condition, the controller sends a corresponding wake-up instruction to the ECU of the external device to wake up the external device. It should be noted that the external device corresponds to the specific frame wakeup identifier, and in the present application, the controller wakes up the external device under the condition that the message identifier of the received bus message corresponds to the specific frame wakeup identifier majj wakeup condition corresponding to the external device. Whether the awakening condition is met or not is judged through an interface driving module in the controller, the transceiver does not need to have the function of judging the awakening condition, so that the transceiver is low in cost, and meanwhile, the function of awakening a specific frame can be realized when the transceiver with low cost is adopted, so that the cost of the transceiver is reduced, the vehicle cost is further reduced, in addition, the reading and the analysis of the bus message are finished on the controller, and the complexity of PCB wiring is reduced.

On the basis of the foregoing embodiment, optionally, if the packet identifier satisfies the wakeup condition, waking up the connected external device includes: comparing the message identification with a specific awakening frame identification; and under the condition that the message identification is matched with the specific awakening frame identification, awakening the connected external equipment.

In this embodiment, the analyzed message identifier is compared with the specific wakeup frame identifier, and when the message identifier matches the specific wakeup frame identifier, the external device connected to the controller is woken up, which can be understood as comparing the message ID field in the bus message with the ID field of the specific wakeup frame, and when the message ID field is the same as the ID field of the specific wakeup frame, determining that the message identifier matches the specific wakeup frame identifier, and waking up the connected external device.

On the basis of the foregoing embodiment, optionally, the method further includes: and controlling the interface driving module to enter a sleep state under the condition that the message identification does not meet the awakening condition.

In this embodiment, the interface driving module is controlled to enter the sleep state when the packet identifier does not satisfy the wakeup condition, that is, when the packet identifier is not matched with the specific wakeup frame identifier. Under the condition that the message identifier is not matched with the specific awakening frame identifier, the interface driving module is controlled to enter the sleep state, so that the interface driving module can not occupy controller resources in the non-working state, the waste of the controller resources is reduced, and the working efficiency of the controller is improved.

On the basis of the foregoing embodiment, optionally, the transceiver is configured to receive a level sequence of a bus, and generate a driving wake-up signal based on a preset pin when the received level sequence is a wake-up sequence.

The preset pin refers to a pin through which the transceiver receives data, and specifically may be an RXD pin in the transceiver, which is not limited herein. In this embodiment, the transceiver detects the received level sequence in real time, and when the received level sequence is the wake-up sequence, the level change of the preset pin of the transceiver is used as the driving wake-up signal.

On the basis of the above embodiment, optionally, the wake-up sequence is a level sequence with a waveform being dominant waveform-recessive waveform-dominant waveform.

Fig. 3 is a wake-up timing diagram of a transceiver according to an embodiment of the invention. In this embodiment, as shown in fig. 3, when it is detected that a waveform of a level sequence received from a CAN bus is a dominant waveform, a recessive waveform, and a dominant waveform, it is determined that a transceiver receives a wake-up sequence, an RXD pin of the transceiver changes from a high level to a low level, and then a falling edge of the RXD pin triggers wake-up software in a controller, so as to wake-up a software wake-up interface driving module; the wake-up software is used for waking up the interface driving module.

The technical scheme of this embodiment, through reading and the message sign in the discernment bus message in the controller, realize specific frame awakening function, the chip that has solved the CAN bus transceiver that adopts among the prior art scheme is with high costs, the area is big, and PCB walks the complicated problem of line, CAN realize specific frame awakening function on low-cost CAN bus transceiver, reduce the cost of CAN bus transceiver chip, reduce the area of chip, reduce the complexity that PCB walked the line simultaneously.

Fig. 4 is a flowchart of an external device wake-up process according to an embodiment of the present invention, as shown in fig. 4, when a CAN transceiver receives a wake-up sequence (i.e., a level sequence of waveform presentation waveforms-recessive waveforms-dominant waveforms) from a bus, an RXD pin of the CAN transceiver changes from a high level to a low level, an RXD falling edge triggers wake-up software in a controller, the wake-up software wakes up a CAN interface driver module in the controller, the CAN interface driver module reads a CAN bus message to obtain bus message information, and determines whether a message ID in the bus message information matches a specific wake-up frame ID, if matching, the external device is woken up, and if not matching, the CAN interface driver module enters a sleep state.

It should be noted that the above external device wake-up procedure is a preferred scheme provided in the embodiment of the present invention, and is not limited to the external device wake-up procedure.

Example two

Fig. 5 is a schematic structural diagram of a device wake-up apparatus according to a second embodiment of the present invention. As shown in fig. 5, the apparatus is disposed in a controller of a device wake-up system, and includes:

the message identifier determining module 210 is configured to, in a case of receiving a wake-up driving signal sent by the transceiver based on the wake-up sequence, read bus message information, and analyze the bus message information to obtain a message identifier.

The external device wake-up module 220 is configured to wake up the connected external device when the packet identifier meets a wake-up condition.

On the basis of the above embodiment, optionally, the controller includes an interface driving module; the message identifier determining module 210 is configured to wake up the interface driving module based on the driving wake-up signal, read bus message information based on the interface driving module, and analyze the bus message information to obtain the message identifier.

On the basis of the foregoing embodiment, optionally, the external device wake-up module 220 is configured to compare the packet identifier with a specific wake-up frame identifier; and under the condition that the message identification is matched with the specific awakening frame identification, awakening the connected external equipment.

On the basis of the above embodiment, optionally, the apparatus further includes: and controlling the interface driving module to enter a sleep state under the condition that the message identification does not meet the awakening condition.

The device awakening device provided by the embodiment of the invention can execute the device awakening method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.

EXAMPLE III

Fig. 6 is a schematic structural diagram of a device wake-up system according to a third embodiment of the present invention. As shown in fig. 6, the system includes: a transceiver 310 and a controller 320;

the transceiver 310 is electrically connected to the controller 320, and configured to detect a received level sequence, and send an interface driving wake-up command to the controller when the detected level sequence is a wake-up sequence.

The controller 320 is electrically connected to an external device, and is configured to read bus packet information, analyze the bus packet information to obtain a packet identifier, determine whether the packet identifier satisfies a wake-up condition, and wake up the external device when the wake-up condition is satisfied.

In this embodiment, the transceiver 310 detects a level sequence received from the CAN bus, and when the level sequence is detected to be a wake-up sequence, the transceiver sends an interface driving wake-up instruction to the controller through the RXD pin, the controller receives the interface driving wake-up instruction, and wakes up the interface driving module based on the interface driving wake-up instruction, the interface driving module reads bus message information, analyzes the bus message information to obtain a message identifier, and determines whether the message identifier meets a wake-up condition, and wakes up the external device when the wake-up condition is met.

Fig. 7 is a circuit diagram of an apparatus wake-up circuit according to a third embodiment of the present invention, as shown in fig. 7, the wake-up circuit includes a CAN Transceiver (CAN Transceiver) and a controller (MCU), and a connection relationship between pins on the CAN Transceiver includes: the TXD pin is connected with a CAN-T pin of the MCU through a signal transmitting circuit, the RXD pin is connected with a CAN-R pin of the MCU through a signal receiving circuit, a STB pin is connected with a GPIO1 pin of the MCU, a CAN-H pin and a CAN-L pin are connected to a CAN bus through an inductor LF1, a VCC pin is connected with an abnormal power supply (+ 5V _CAN), a VIO pin is connected with an abnormal power supply (+ 3V_ BAT), and a GND pin is grounded with a TAB pin; the connection relation of the rest pins on the MCU controller comprises the following steps: the GPIO2 pin is connected with an enabling pin of an external DEVICE through a driving DEVICE (ENABLE-DEVICE), the VCC pin is connected with a normal power supply (VCC-BAT), and the GND pin is grounded.

The device wake-up system provided by the embodiment of the present invention may execute the device wake-up method provided by any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

Example four

Fig. 8 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention. The electronic device 10 is intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smart phones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.

As shown in fig. 8, the electronic device 10 includes at least one processor 11, and a memory communicatively connected to the at least one processor 11, such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, and the like, wherein the memory stores a computer program executable by the at least one processor, and the processor 11 can perform various suitable actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from a storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data necessary for the operation of the electronic apparatus 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.

A number of components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, or the like; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network such as the internet and/or various telecommunication networks.

Processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, or the like. The processor 11 performs the various methods and processes described above, such as the device wake-up method.

In some embodiments, the device wake-up method may be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the device wake-up method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the device wake-up method by any other suitable means (e.g. by means of firmware).

Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuitry, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), system on a chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.

Computer programs for implementing the device wake-up method of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be performed. A computer program can execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

EXAMPLE five

An embodiment of the present invention further provides a computer-readable storage medium, where a computer instruction is stored in the computer-readable storage medium, and the computer instruction is used to enable a processor to execute an apparatus wake-up method, where the method is applied to a controller in an apparatus wake-up system, and the method includes:

under the condition of receiving a driving wake-up signal sent by a transceiver based on a wake-up sequence, reading bus message information, and analyzing the bus message information to obtain a message identifier; and awakening the connected external equipment under the condition that the message identification meets the awakening condition.

In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic, speech, or tactile input.

The systems and techniques described here can be implemented in a computing system that includes a back-end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.

The computing system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical host and VPS service are overcome.

It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present invention may be executed in parallel, sequentially, or in different orders, and are not limited herein as long as the desired result of the technical solution of the present invention can be achieved.

The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device wake-up method applied to a controller in a device wake-up system, the method comprising:

2. The method of claim 1, wherein the controller comprises an interface driver module;

the reading bus message information, analyzing the bus message information to obtain a message identifier, including:

and awakening the interface driving module based on the driving awakening signal, reading bus message information based on the interface driving module, and analyzing the bus message information to obtain the message identifier.

3. The method according to claim 1, wherein the waking up the connected external device when the packet identifier satisfies a wake-up condition includes:

comparing the message identification with a specific awakening frame identification;

and under the condition that the message identification is matched with the specific awakening frame identification, awakening the connected external equipment.

4. The method of claim 2, further comprising:

and controlling the interface driving module to enter a sleep state under the condition that the message identification does not meet the awakening condition.

5. The method of claim 1, wherein the transceiver is configured to receive a level sequence of the bus and generate the wake-up driving signal based on a preset pin when the received level sequence is a wake-up sequence.

6. The method of claim 5, wherein the wake-up sequence is a level sequence of a waveform being dominant waveform-recessive waveform-dominant waveform.

7. An apparatus for waking up a device, wherein a controller is provided in a wake-up system of the device, the apparatus comprising:

8. A device wake-up system, comprising: a transceiver and a controller;

9. An electronic device, characterized in that the electronic device comprises:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,

the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the device wake-up method of any one of claims 1-6.

10. A computer-readable storage medium having stored thereon computer instructions for causing a processor, when executed, to implement the device wake-up method of any one of claims 1-6.