CN112256614A - Communication method and device - Google Patents

Abstract

The application provides a communication method and a device, which relate to the field of communication, wherein the communication method comprises the following steps: determining that a first event occurs at the mobile device; and indicating the mobile equipment to generate a first event to the terminal equipment through the universal serial bus interface. According to the communication method, the mobile device and the terminal device are connected through the universal serial bus interface, so that the mobile device can trigger communication through the terminal device, and the purposes of low cost and convenience in adding an automatic communication function to the mobile device are achieved.

Description

Communication method and device

Technical Field

The present application relates to the field of communications, and in particular, to a communication method and apparatus.

Background

Along with the gradual improvement of living standard and the rapid development of economy of people, automobiles are more and more popular, and the safety of the automobiles is increasingly emphasized.

In order to improve the safety of an automobile in the driving process, and enable the automobile to automatically initiate communication to seek rescue when an accident occurs, loss and harm are reduced to the minimum, in the prior art, a car manufacturer usually integrates a hardware module in the vehicle to realize a communication function. For example, currently, a vehicle networking function is implemented by providing a vehicle-mounted communication BOX (T-BOX) supporting a communication function inside a vehicle, so that communication can be automatically initiated when an accident occurs in the vehicle.

Although the communication function can be realized in the above manner, the T-BOX is integrated inside the vehicle to support the car networking function, so that the development cost and the service cost of the car networking are high, and the communication is difficult to realize for the vehicles which do not support the car networking function.

Disclosure of Invention

The application provides a communication method and a communication device, which can add an automatic communication function to a mobile device in a low-cost and convenient manner.

In order to achieve the purpose, the technical scheme is as follows:

in a first aspect, a communication method is provided, which is applied to a mobile device, and the mobile device and a terminal device are connected through a universal serial bus interface. The execution subject of the communication method provided by the present application may be a communication apparatus, a communication module (unit), or a communication system integrated on a mobile device. Alternatively, the execution subject of the communication method provided by the present application may also be a chip or an integrated circuit on the mobile device, for example, the chip may be a chip in a sensor, a fusion module, or a controller, etc. The fusion module may include the communication module (unit) described above, or may also be understood as a module that acquires information from a plurality of other modules, performs fusion, and outputs a fusion signal. Alternatively, the execution subject of the communication method provided by the present application may also be a mobile device, and the above chip or integrated circuit is integrated on the mobile device. Wherein, the mobile device can include the equipment that vehicle, aircraft, unmanned aerial vehicle, steamer, overhead traveling crane, tower crane etc. can remove spatial position or change the space shape through people's operation. The method comprises the following steps: determining that a first event occurs at the mobile device; and indicating the mobile equipment to generate a first event to the terminal equipment through the universal serial bus interface.

In the communication method provided by the first aspect, based on the fact that the mobile device is connected with the terminal device through the universal serial bus interface, and based on the fact that the mobile device is connected with the terminal device through the universal serial bus interface, when it is determined that the first event occurs on the mobile device, the first event occurs on the mobile device is indicated to the terminal device through the universal serial bus interface, and the terminal device triggers the first response under the indication, so that the purposes of low cost and convenience in adding an automatic communication function to the mobile device are achieved.

Here, for a mobile device without a wireless communication function, the mobile device can be connected to the terminal device through the universal serial bus interface, which is beneficial for the terminal device to automatically initiate a first response when a first event occurs in the mobile device.

In a possible implementation manner of the first aspect, indicating, to the terminal device through the universal serial bus interface, that the mobile device has the first event, includes: and sending a first signal to the terminal equipment through the universal serial bus interface, wherein the first signal is used for indicating the mobile equipment to generate a first event.

In a possible implementation manner of the first aspect, indicating, to the terminal device through the universal serial bus interface, that the mobile device has the first event, includes: and adopting a first power supply voltage mode to supply power to the terminal equipment through the universal serial bus interface so as to indicate that the mobile equipment has a first event, wherein the first power supply voltage mode is different from a normal power supply voltage mode for supplying power to the mobile equipment through the universal serial bus interface when the first event does not occur.

In a possible implementation manner of the first aspect, the method for supplying power to a terminal device through a usb interface in a first power supply voltage mode includes: determining a target first power supply voltage mode corresponding to a target first signal from a preset table according to the target first signal corresponding to the first event, wherein the preset table at least comprises a mapping relation between each first signal in one or more first signals and the first power supply voltage mode; and adopting a target first power supply voltage mode to supply power to the terminal equipment through the universal serial bus interface. In this implementation, the mobile device may provide different first power supply voltage patterns to the terminal device through the USB interface when a different first event or a different signal occurs, so as to distinguish the first event from the second event.

In a possible implementation manner of the first aspect, when the terminal device is powered by the usb interface in the first power supply voltage mode, the working voltage output by the usb interface is switched between a first working voltage and a second working voltage, where the first working voltage is different from the second working voltage, and a duration of the first working voltage is the same as or different from a duration of the second working voltage.

In a possible implementation manner of the first aspect, when the terminal device is powered by the usb interface in the first power supply voltage mode, the working voltage output by the usb interface is switched among a plurality of different working voltages, where the plurality of different working voltages respectively correspond to the same or different durations.

In a possible implementation manner of the first aspect, the method includes: the mobile device is instructed to generate the first event a plurality of times in succession via the universal serial bus interface. In this implementation, the success rate of the indication transmission can be improved by continuously indicating for a plurality of times.

In a possible implementation manner of the first aspect, the indicating, by the usb interface, that the first event occurs at the mobile device for a plurality of times in succession includes: continuously sending a first signal to the terminal equipment for multiple times through a universal serial bus interface; or, the terminal equipment is continuously supplied with power for multiple times through the universal serial bus interface by adopting the first power supply voltage mode.

In a possible implementation manner of the first aspect, the method further includes: and when the battery for supplying power to the universal serial bus interface is unavailable, the standby battery of the mobile equipment is adopted for supplying power to the universal serial bus interface.

In a second aspect, a communication method is provided, which is applied to a terminal device, where the terminal device and a mobile device are connected through a universal serial bus interface, and the method includes: receiving an indication from a mobile device via a universal serial bus interface; in the event that the mobile device is determined to have occurred at the first event in accordance with the indication from the mobile device, a first response is triggered.

In a possible implementation manner of the second aspect, receiving an indication from the mobile device through the universal serial bus interface includes: receiving a first signal from the mobile device through the universal serial bus interface, wherein the first signal is used for indicating the mobile device to generate a first event; in the event that the mobile device is determined to have a first event according to the indication of the mobile device, triggering a first response comprising: in the event that it is determined from the first signal that a first event occurred with the mobile device, a first response is triggered.

In a possible implementation manner of the second aspect, receiving an indication from the mobile device through the universal serial bus interface includes: detecting a power supply voltage mode of the mobile equipment for supplying power to the terminal equipment through a universal serial bus interface; determining whether the power supply voltage mode is a first power supply voltage mode, wherein the first power supply voltage mode is used for indicating that a first event occurs in the mobile equipment, and the first power supply voltage mode is different from the power supply voltage mode which is detected when the first event does not occur and supplies power to the terminal equipment through the universal serial bus interface; in the event that the mobile device is determined to have a first event according to the indication of the mobile device, triggering a first response comprising: and triggering a first response when the power supply voltage mode is a first power supply voltage mode and the mobile equipment is determined to generate a first event according to the first power supply voltage mode.

In one possible implementation manner of the second aspect, determining whether the supply voltage mode is the first supply voltage mode includes: determining whether the power supply voltage mode is different from a normal power supply voltage mode which is detected when the first event does not occur and supplies power to the terminal equipment through the universal serial bus interface; taking the supply voltage mode as a target first supply voltage mode under different conditions; determining a target first signal corresponding to the target first power supply voltage mode from a preset table according to the target first power supply voltage mode, wherein the preset table at least comprises a mapping relation between each first signal in one or more first signals and the first power supply voltage mode; in the event that the mobile device is determined to have a first event according to the indication of the mobile device, triggering a first response comprising: and triggering a first response under the condition that the mobile equipment is determined to generate a first event according to a target first signal corresponding to the target first power supply voltage mode.

In a possible implementation manner of the second aspect, the method further includes: an indication from the mobile device is received over the universal serial bus interface a plurality of consecutive times. In this implementation, by receiving the indication multiple times in succession and then triggering the communication, accuracy can be improved.

In one possible implementation manner of the second aspect, the receiving, through the universal serial bus interface, the indication from the mobile device a plurality of consecutive times includes: receiving a first signal from the mobile device through the universal serial bus interface for a plurality of times in succession; or, the power supply voltage mode of the mobile equipment for supplying power to the terminal equipment is continuously detected for multiple times through the universal serial bus interface.

In one possible implementation manner of the second aspect, the first response includes: at least one of voice prompt, vibration prompt, dialing emergency call number.

In a third aspect, there is provided a communication device comprising means for performing the steps of the above first aspect or any possible implementation manner of the first aspect.

In a fourth aspect, there is provided a communication device comprising means for performing the steps of the second aspect above or any possible implementation manner of the second aspect.

In a fifth aspect, a communications apparatus is provided that includes at least one processor coupled with a memory; at least one processor configured to execute computer programs or instructions stored in the at least one memory to cause the apparatus to perform the communication method of the above first aspect or any possible implementation manner of the first aspect.

In a sixth aspect, a terminal device is provided that includes at least one processor coupled with a memory; at least one processor configured to execute computer programs or instructions stored in the at least one memory to cause the terminal device to perform the communication method of the second aspect above or any possible implementation manner of the second aspect.

In a seventh aspect, a computer program product is provided, the computer program product comprising a computer program for performing the method of the first aspect or any possible implementation form of the first aspect, or for performing the method of the second aspect or any possible implementation form of the second aspect, when the computer program is executed by a processor.

In an eighth aspect, a computer-readable storage medium is provided, in which a computer program or instructions are stored, which, when read and executed by a computer, cause the computer to perform the communication method in the above first aspect or any possible implementation manner of the first aspect, or perform the communication method in the second aspect or any possible implementation manner of the second aspect.

In a ninth aspect, there is provided a chip or an integrated circuit, the chip or the integrated circuit comprising: a processor configured to call and run a computer program from a memory, so that a device on which the chip or the integrated circuit is installed performs the communication method in the first aspect or any possible implementation manner of the first aspect, or performs the communication method in the second aspect or any possible implementation manner of the second aspect.

In a tenth aspect, a vehicle for carrying out the communication method of the above first aspect or any possible implementation manner of the first aspect is provided.

In an eleventh aspect, a system is provided, where the system includes a mobile device and a terminal device, where the terminal device is configured to perform the communication method in the second aspect or any possible implementation manner of the second aspect, and the mobile device is configured to perform the communication method in the first aspect or any possible implementation manner of the first aspect.

According to the communication method and the communication device, based on the fact that the mobile device is connected with the terminal device through the USB interface, after the first signal is detected, the first signal is sent to the terminal device through the USB interface, so that the terminal device triggers communication according to the first signal, and the purposes of low cost and convenience in adding an automatic communication function to the mobile device are achieved.

Drawings

Fig. 1 is an application scenario diagram according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a network topology of a vehicle according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a local network topology of a vehicle according to an embodiment of the present application;

fig. 4 is a flowchart illustrating a communication method according to an embodiment of the present application;

FIG. 5 is a schematic diagram of various supply voltage modes provided by an embodiment of the present application;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another communication device according to an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

In the description of the embodiments of the present application, "/" means "or" unless otherwise specified, for example, a/B may mean a or B; "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality" means two or more than two.

In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present embodiment, "a plurality" means two or more unless otherwise specified.

In addition, various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or key drive, etc.). In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

Fig. 1 shows an application scenario diagram provided in an embodiment of the present application. As shown in fig. 1, the terminal device 100 and the mobile device 200 are connected through a Universal Serial Bus (USB) interface, so that the mobile device 200 can supply power to the terminal device 100 through the USB interface, or the mobile device 200 and the terminal device 100 can transmit data to each other through the USB interface.

It should be noted that, the connection between the mobile device 200 and the terminal device 100 through the USB interface is based on the USB interface provided on the mobile device 200, where the USB interface is an interface conforming to the USB standard specification, and the USB interface may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, and the like. The form of the USB interface may be set as required, and this is not limited in any way in the embodiment of the present application.

The technical scheme provided by the embodiment of the application can be applied to a scene that the first event occurs in the mobile equipment. The mobile equipment and the terminal equipment are connected through a USB interface.

In this application embodiment, the mobile device can include that vehicle, aircraft, unmanned aerial vehicle, steamer, overhead traveling crane, tower crane etc. can move the equipment of spatial position or change space shape through people's operation. The embodiment of the present application does not set any limit to the specific form of the mobile device.

For example, the mobile device may be a vehicle, which may be an internal combustion engine vehicle having an engine as a power source, a hybrid vehicle having an engine and an electric motor as power sources, or an electric vehicle having an electric motor as a power source, or the like. The vehicle includes mobility-related components such as a powertrain having an engine, transmission, suspension, drive shafts, and/or wheels, among others.

In this embodiment of the application, the terminal device may be a mobile phone, a tablet computer, a wearable device, an Augmented Reality (AR)/Virtual Reality (VR) device, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a Personal Digital Assistant (PDA), and the like, which are capable of initiating the first response. The terminal device may also be another terminal device capable of initiating the first response. The embodiment of the present application does not set any limit to the specific type of the terminal device.

The following describes a vehicle according to an embodiment of the present application with reference to fig. 2, taking a mobile device 200 as an example. Fig. 2 shows a network topology of a vehicle.

The vehicle may include a Controller Area Network (CAN) bus network, an On Board Diagnostics (OBD) interface, a plurality of Electronic Control Units (ECUs), a battery, and the like.

The vehicle receives a charging input using a battery and powers all electrical devices using the battery.

The CAN bus network comprises a central gateway and a plurality of CAN buses connected with the central gateway. The central gateway CAN communicate between different buses through a protocol conversion function, and each CAN bus is generally formed by a twisted pair consisting of two wires, one wire is CAN _ L, and the other wire is CAN _ H which respectively represents low level and high level.

The plurality of CAN buses may be classified into different kinds of CAN buses according to functions, each of which is connected to a different unit. In this way, various units in the vehicle CAN be connected through a plurality of CAN buses, so that all the units CAN be used as CAN bus nodes, CAN signals in a specific format are generated according to a CAN communication matrix (communication matrix), and data communication is performed through the CAN buses. All signals to be transmitted and received by each CAN bus node are specified in the CAN communication matrix, and the signals comprise signal formats, serial numbers, signal content meanings, data ranges, periods and the like.

In some embodiments, an OBD interface is also connected to the central gateway.

The OBD interface is used as an external data port of the central gateway, and data on the CAN bus CAN be transmitted to external equipment or a diagnostic instrument through communication transmission equipment. Optionally, the OBD interface may also receive and respond to data and instructions downloaded from an external device or diagnostic instrument. The OBD interface is typically hidden in a forward bottom position of the vehicle cabin.

By a plurality of ECUs is meant the various controllers on the vehicle, each ECU having one or more sensors connected thereto. The plurality of ECUs have the functions of operation and control, signals of related sensors in the vehicle can be collected and operated, the operation result can be converted into a control signal, and then corresponding parts in the vehicle can be controlled to work, so that the vehicle can control the running state of the vehicle and realize various functions of the vehicle through the plurality of ECUs.

For example, a plurality of ECUs included in the vehicle are respectively a Body Control Module (BCM), an Engine Control Module (ECM), a keyless entry and start module (PEPS), a Meter control module (Meter), an airbag control module (SRS), and the like, and data interaction and command transmission may be performed between the ECUs using a CAN bus network.

The BCM is used to control body electrical appliances, such as vehicle lights, wipers, washing, door locks, power windows, skylights, power mirrors, remote controls, and the like.

The ECM is used for continuously monitoring and controlling the normal work of the engine, and can also provide a mixer with the optimal air-fuel ratio and the optimal ignition time for the engine according to different working conditions of the engine, so that the engine is always in the optimal working state.

The PESP comprises a radio frequency transmitter in the intelligent key, a receiver at the automobile end and the like. For example, when the key is in the effective range, the vehicle owner pulls the vehicle door or presses a key starting switch in the intelligent key, the corresponding module is triggered to send an execution signal to the BCM, so that the BCM starts to communicate with other units through the CAN bus network and execute corresponding operations, and the vehicle door CAN be opened or the engine CAN be started without using the key in the whole process.

The Meter is used for controlling indicator lights, instrument panels and the like corresponding to various modules or sensors so as to display the current state or corresponding parameters of corresponding units or sensors.

The safety airbag control module is connected with the safety airbag and used for monitoring vehicle collision and controlling the safety airbag to detonate, and information that the safety airbag is opened CAN be sent to other relevant ECUs through a CAN bus. For example, the airbag control module may generate a CAN signal of a specific format and send the CAN signal to the instrument control module through a CAN bus, so that the instrument control module may control the corresponding indicator light to change color according to the state of the airbag to prompt that the airbag has been opened.

In addition, the ECU can also be a head unit (H/U), and on the basis of the head unit, the vehicle can also comprise a display screen which is used for displaying images, videos and the like. The vehicle can realize various vehicle-mounted entertainment functions through the vehicle machine and the display screen, for example: listen to music, watch video, etc. In other embodiments, the car machine can also be arranged together with the display screen.

It is to be understood that the type of ECU illustrated above does not constitute a specific limitation on the ECU. In other embodiments, the ECU may also be another module in the vehicle.

On this basis, in conjunction with fig. 2, the vehicle may further include a T-BOX and an antenna in order to support the car networking function. When the vehicle has the T-BOX and the antenna, the wireless communication function of the vehicle can be realized by the T-BOX and the antenna, etc.

The antenna is used for transmitting and receiving electromagnetic wave signals. Each antenna in the vehicle may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: one antenna may be multiplexed as a diversity antenna for the wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch. Here, the number of the antennas may be set as needed, and the embodiment of the present application does not set any limitation to this.

The T-BOX is used for providing solutions for wireless communication applied in vehicles, including 2G/3G/4G/5G, Wireless Local Area Networks (WLANs) (such as wireless fidelity (Wi-Fi) networks), Bluetooth (BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), and the like. The T-BOX may include at least one filter, switch, power amplifier, Low Noise Amplifier (LNA), modem processor, baseband processor, and the like. The T-BOX may receive electromagnetic waves from an antenna and may filter, amplify, demodulate, etc. the received electromagnetic waves. The T-BOX can also amplify the modulated signal and convert the signal into electromagnetic wave to radiate the electromagnetic wave through the antenna. The T-BOX may be one or more devices that integrate at least one communication processing module.

In some embodiments, an antenna in the vehicle is coupled with the T-BOX so that the vehicle can communicate with the network and other devices through wireless communication techniques. The wireless communication technology may include global system for mobile communications (GSM), General Packet Radio Service (GPRS), code division multiple access (code division multiple access, CDMA), Wideband Code Division Multiple Access (WCDMA), time-division code division multiple access (time-division code division multiple access, TD-SCDMA), Long Term Evolution (LTE), BT, GNSS, WLAN, NFC, FM, and/or IR technology, etc. The GNSS may include a Global Positioning System (GPS), a global navigation satellite system (GLONASS), a beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS), and/or a Satellite Based Augmentation System (SBAS).

It is to be understood that the illustrated structure of the embodiment of the present application does not constitute a specific limitation to the vehicle. In other embodiments of the present application, the vehicle may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Based on the above, when a vehicle manufacturer produces vehicles, in order to add a car networking function to the vehicles, more and more vehicle manufacturers may set a T-BOX supporting a communication function inside the vehicles. As shown in fig. 2, the T-BOX includes a detection unit and a communication unit connected. The detection unit in the T-BOX is connected with the airbag control module through a CAN bus and is also connected with the airbag through a cable.

If the vehicle is in some event, such as collision with other vehicles, and the airbag in the vehicle is detonated, the cable of the airbag transmits a signal preset by the manufacturer to the T-BOX to indicate that the airbag is in an opened state. Illustratively, a specific pattern of Pulse Width Modulation (PWM) waveform appears on the airbag cable, or a normal signal defaults to a low level, and a continuous high level signal appears on the cable when the airbag is opened, or a normal signal defaults to a high level, and a continuous low level signal appears on the cable when the airbag is opened. In addition, in order to increase the reliability of signal transmission and ensure that the T-BOX accurately detects the state of the air bag, the air bag control module also sends a CAN signal with a specific format to the T-BOX through a CAN bus so as to inform that the air bag is opened.

Thus, when the detection unit in the T-BOX detects the PWM signal or the high level or the low level transmitted on the cable of the air bag, or detects the CAN signal of the specific format of the corresponding air bag control module transmitted on the CAN bus, or simultaneously detects the signals transmitted by the two modes, the detected signal is sent to the connected communication unit. Then, after the communication unit receives the signal sent by the detection unit, the communication unit can know that the safety air bag is detonated and the vehicle is collided, so that communication can be initiated based on the pre-stored emergency call number to seek rescue.

Although the communication function can be realized by the above method, in order to add the car networking function to the vehicle, a hardware structure including the T-BOX must be integrated on the vehicle, so that the car manufacturer has a large development cost, and there is a large service fee of the car networking when in use, and for the vehicle which is not provided with the T-BOX and does not support the car networking function, it is difficult to realize the communication function. In addition, for these vehicles without the T-BOX, if the communication function is to be implemented by other means, only the hardware structure can be modified, and thus, there is also a problem of large development cost.

Therefore, if it is not desired to modify the hardware structure inside the vehicle, a device may be added to the outside of the vehicle, and various signals generated by the vehicle may be transmitted to the device outside the vehicle, so that the device outside the vehicle may be used to implement the communication function. However, there are problems in that: the same signal detected by the vehicle may not be consistent, which results in direct transmission failure, for example, different manufacturers may define different signals transmitted on the cable when the airbag control is opened, which results in failure to transmit to external devices, and thus, the universality is poor. If it is desired to receive all the defined signals corresponding to the airbag, an external device connected to the vehicle is modified. Moreover, if the signals detected by the vehicle are of various types, external devices connected to the vehicle cannot be guaranteed to receive the signals, and if all the signals are received, hardware modification is required.

Furthermore, given that devices external to the vehicle can be used to receive all detected signals, the problem of how to transmit these signals from the vehicle to the external devices needs to be solved. With reference to fig. 2, although the vehicle is provided with an OBD interface through which data on the CAN bus CAN be transmitted to the external device or the diagnostic device, if the communication function is to be implemented by using the OBD interface, firstly, the external device or the diagnostic device is required to support the OBD interface; secondly, the OBD interface CAN only receive signals on the CAN bus, has certain limitation on the signals received by the CAN bus and CAN not receive signals on other cables, so that the types of the signals transmitted to external equipment or a diagnostic instrument through the OBD interface are very limited; moreover, the OBD interface is usually hidden in the vehicle, which is very inconvenient to use, and moreover, the OBD interface on different vehicles still has a certain compatibility problem, so the OBD interface cannot be used to realize the automatic communication function.

Therefore, a method for adding an automatic communication function to a mobile device such as a vehicle at low cost is desired.

In view of this, the present application provides a communication method, where a mobile device is connected to a terminal device through a USB interface, when a first event of the mobile device is determined, the mobile device is indicated to the terminal device through the USB interface, and the terminal device triggers a first response under the indication, so as to achieve the purpose of adding an automatic communication function to the mobile device at low cost and conveniently.

The following describes the communication method provided in the embodiments of the present application in detail.

It should be understood that the execution subject of the communication method provided in the present application may be a communication apparatus, a communication module (unit), or a communication system integrated on a mobile device. Alternatively, the execution subject of the communication method provided by the present application may also be a chip or an integrated circuit on the mobile device, for example, the chip may be a chip in a sensor, a fusion module, or a controller, etc. The fusion module may include the communication module (unit) described above, or may also be understood as a module that acquires information from a plurality of other modules, performs fusion, and outputs a fusion signal. Alternatively, the execution subject of the communication method provided by the present application may also be a mobile device, and the above chip or integrated circuit is integrated on the mobile device.

In the embodiment of the application, the mobile device can be an automobile, an unmanned aerial vehicle, a ship and the like.

Taking a mobile device as an example of a vehicle, an execution subject of the communication method provided by the present application may be the vehicle, a communication device integrated on the vehicle, a communication module (unit), or a communication system. Alternatively, it may be an ECU or a combination of several ECUs on the vehicle.

On the basis of fig. 2, fig. 3 shows a schematic view of a local network topology of a vehicle.

For example, the execution subject of the communication method provided by the present application may be an ECU, the ECU is connected with other units through a CAN bus, and is also connected with a plurality of sensors through cables, so that the ECU CAN communicate with other units through the CAN bus, and collect data or download instructions of the plurality of sensors through the cables. The ECU comprises a USB interface, and a battery in the vehicle can supply power for the ECU, including the USB interface in the ECU. In some embodiments, a backup battery (BUB) is also included in the ECU, and the backup battery may supply power to the ECU when a battery for supplying power to the USB interface is unavailable, including supplying power to the USB interface in the ECU.

It is understood that the ECU may be one or a combination of several of BCM, ECM, PESP, Meter, airbag control module, vehicle machine, etc. shown in fig. 2, or may be other units in the vehicle, and the embodiment of the present application does not limit any particular type of ECU.

Fig. 4 shows a flowchart of a communication method provided in an embodiment of the present application, and as shown in fig. 4, the method 100 shown in fig. 4 includes S110 to S130.

And S110, determining that the first event occurs in the mobile equipment.

Illustratively, the first event refers to a vehicle collision, window damage, fire, emergency braking, an impending exhaustion of fuel or power, and the like.

Optionally, in this embodiment of the application, in the above S110, determining that the first event occurs in the mobile device may include:

and S111, determining whether the first signal is detected.

And S112, determining whether the first event occurs in the mobile equipment according to the first signal.

The first signal may include signals generated by various sensors on the mobile device or various ECUs or the like when the first event occurs in the mobile device. For example, the first signal includes a specific form of PWM signal or high or low level transmitted by the airbag on the cable upon the airbag ignition; the safety airbag control module transmits a first CAN signal with a specific format through a CAN bus; when the vehicle window is broken, the vehicle body control module transmits a second CAN signal with a specific format through the CAN bus; and when the engine is on fire, the engine control module transmits a third CAN signal with a specific format through the CAN bus, and the like. Accordingly, when the mobile device detects a first signal (e.g., a CAN signal generated by an airbag control module), it may be determined that a first event has occurred with the mobile device.

Alternatively, in other embodiments, the first signal may also include a signal generated by a human operating a key or switch. For example, a vehicle may have a severe rear-end collision, but the airbag has not detonated, and the driver may also determine that the first event has occurred by activating certain keys or switches within the vehicle.

And S120, indicating the mobile equipment to generate a first event to the terminal equipment through the USB interface.

Accordingly, the terminal device receives the indication from the mobile device through the USB interface.

The embodiment of the present application does not limit the specific form in which the mobile device indicates the terminal device through the USB interface.

Optionally, in other embodiments of the present application, the mobile device may also indicate to the terminal device that the first event occurs in the mobile device in other manners instead of through the USB interface. For example, the indication may also be issued by means of wireless communication such as bluetooth and NFC, and the embodiment of the present application is not limited in any way.

S130, the terminal device triggers a first response when determining that the mobile device has the first event according to the indication of the mobile device.

Alternatively, in the embodiment of the present application, the so-called first response may include: at least one of voice prompt, vibration prompt, dialing emergency call number.

It is to be understood that when the first response is to dial an emergency call number, the emergency call number may be stored in the terminal device in advance. The so-called emergency call number may be a mobile phone number of a family member or a colleague of the owner or may be the alarm phone 110, the fire alarm phone 119, the emergency call phone 120, or the like. The emergency call number may be preset in the terminal device by the manufacturer of the terminal device, or may be added in the terminal device by the user as required. The present application is not limited in this respect. Here, the correspondence between the instruction issued by the mobile device and the emergency call number may be stored in advance in the terminal device, so as to ask for help to different objects for different first events.

In addition, the terminal device needs to be able to support a voice call function. For example, the terminal device may implement a voice call function through the included processor, mobile communication module, audio module, speaker, receiver, microphone, and the like.

Based on the method, when the automatic dialing of the emergency call number is triggered, the terminal equipment calls the telephone directory, automatically dials the preset emergency call number and starts the audio module, the loudspeaker, the receiver, the microphone and the like. Illustratively, when the terminal device receives an indication corresponding to a fire in the mobile device, it will automatically dial a fire alarm phone 119; when the terminal device receives an indication corresponding to a rear-end collision of the mobile device, the traffic police phone 122 is automatically dialed.

The first response may also be in other manners, and may be specifically set according to needs, which is not limited in this application.

Illustratively, when the vehicle is about to run out of fuel or battery power, and terminal equipment is when receiving the instruction of mobile device, first response still can be for opening map Application (APP) automatically to indicate out near filling station or fill electric pile in map APP, on this basis, can also indicate for the driver through the mode of voice broadcast.

The embodiment of the application provides a communication method, under the condition that no hardware transformation is carried out, based on the fact that a mobile device is connected with a terminal device through a USB interface, when a first event of the mobile device is determined, the first event of the mobile device is indicated to the terminal device through the USB interface, and the terminal device triggers a first response under the indication, so that the purposes of low cost and convenience in adding an automatic communication function to the mobile device are achieved.

In addition, taking the mobile device as an example, when the vehicle further comprises a T-BOX, the indication can be sent by using the USB interface while the communication is initiated by using the T-BOX, so that the terminal device connected with the mobile device can also initiate the communication, thereby increasing a second path of the communication and improving the call completing rate of the communication.

Optionally, in this embodiment of the application, the S120 may include:

and sending a first signal to the terminal equipment through the universal serial bus interface, wherein the first signal is used for indicating the mobile equipment to generate a first event. Correspondingly, the terminal equipment receives the first signal from the mobile equipment through the USB interface.

For example, the first signal may be a first indicator, such as "1" indicating the occurrence of a first event. It is understood that the terminal device stores the corresponding relationship between the first indicator and the first event, so that if the terminal device receives the first indicator, it can determine that the first event occurs.

Based on this, S130 includes:

and the terminal equipment triggers a first response under the condition that the terminal equipment determines that the mobile equipment generates a first event according to the first signal.

For example, the mobile device is a vehicle, the terminal device is a mobile phone, and the execution subject of the communication method is a car machine. When a vehicle has an accident, the safety airbag on the vehicle is detonated and the vehicle window is broken due to huge impact, and at the moment, the safety airbag control module generates a first CAN signal corresponding to a specific format and transmits the first CAN signal to a vehicle machine through a CAN bus. Simultaneously, because the door window is broken, BCM also CAN produce the second CAN signal of corresponding format to through CAN bus with this second CAN signal transmission to car machine. In addition, if the cable of the safety airbag is also connected with the vehicle machine, the safety airbag transmits a first level signal to the vehicle machine through the cable; if the sensor corresponding to the car window is also connected with the car machine, the car window sensor transmits a second level signal to the car machine through the cable. The first level signal and the second level signal may be PWM signals of a specific waveform or high level or low level. Therefore, the vehicle machine CAN detect a first CAN signal and a second CAN signal through the CAN bus, CAN also detect a first level signal and a second level signal through the cable, and the four signals are the first signals.

Therefore, after the car machine receives any one of the first signals, the first signal is sent to the mobile phone, and after the mobile phone receives the first signal, the mobile phone can know that the first event of the car needs to be rescued, so that the phone book can be called to find the alarm phone 110, the mobile communication module starts to dial the alarm phone, and the audio module, the loudspeaker, the receiver, the microphone and the like are started at the same time, so that after the phone is connected, the personnel on the car can communicate with the answering personnel of the police to seek rescue.

Optionally, in this embodiment of the application, the S120 may further include:

and supplying power to the terminal equipment through the USB interface by adopting a first power supply voltage mode to indicate that the mobile equipment has a first event, wherein the first power supply voltage mode is different from a normal power supply voltage mode for supplying power to the mobile equipment through the USB interface when the first event does not occur.

The power supply voltage mode is a specific form of supplying power to the terminal device through the USB interface, and indicates a voltage state when a voltage is supplied to the terminal device.

When the first event does not occur, the normal power supply voltage mode for supplying power to the mobile equipment through the USB interface by the mobile equipment means that the mobile equipment continuously provides a certain voltage and the voltage value is not zero. For example, the mobile device continuously supplies a voltage of 5V through the USB interface. Therefore, when the mobile device adopts a mode different from the normal power supply voltage mode, for example, the first power supply voltage mode is used for supplying power for distinguishing, the subsequent terminal device can judge the change of the power supply mode.

As for the specific form of the first power supply voltage mode, the present application does not limit this, as long as it is different from the normal power supply voltage mode.

Correspondingly, the steps corresponding to the terminal device may include:

the terminal device detects a power supply voltage mode of the mobile device for supplying power to the terminal device through the USB interface.

The terminal device determines whether the power supply voltage mode is a first power supply voltage mode, wherein the first power supply voltage mode is used for indicating that the mobile device generates a first event. Therefore, when the power supply voltage mode for supplying power to the terminal equipment through the USB interface by the mobile equipment is the first power supply voltage mode, the mobile equipment can be determined to have a first event; when not in the first supply voltage mode, it may be determined that the mobile device has not experienced the first event.

In addition, in order to reduce damage to the mobile device caused by supplying power to the mobile device in the first power supply voltage mode, after the terminal device is supplied with power through the USB interface in the first power supply voltage mode, for example, the power supply to the terminal device may be automatically stopped after a preset time period (e.g., 10 minutes), or the power supply to the terminal device may be automatically changed to the normal power supply voltage mode.

Based on this, S130 includes:

in case the supply voltage mode is the first supply voltage mode, the terminal device triggers a first response.

If the first event is numerous, no matter which first event occurs to the mobile device, the mobile device may correspondingly use the same first power supply voltage mode to supply power to the terminal device, and the terminal device may correspondingly trigger the same first response. For example, the terminal device performs voice prompt regardless of which first event occurs to the mobile device.

Optionally, in this embodiment of the present application, the supplying power to the terminal device through the USB interface in the first supply voltage mode includes:

s210, according to a target first signal corresponding to a first event, determining a target first power supply voltage mode corresponding to the target first signal from a preset table, wherein the preset table at least comprises a mapping relation between each first signal in one or more first signals and the first power supply voltage mode.

And S220, supplying power to the terminal equipment through the USB interface by adopting a target first power supply voltage mode.

Correspondingly, the terminal equipment corresponding steps comprise:

and S230, the terminal equipment determines whether the power supply voltage mode is different from the normal power supply voltage mode which is detected when the first event does not occur and supplies power to the terminal equipment through the USB interface.

And S240, taking the power supply voltage mode as a target first power supply voltage mode under different conditions.

S250, determining a target first signal corresponding to the target first power supply voltage mode from a preset table according to the target first power supply voltage mode, wherein the preset table at least comprises a mapping relation between each first signal in one or more first signals and the first power supply voltage mode.

Based on this, S130 may include:

and the terminal equipment triggers a first response under the condition that the first event of the mobile equipment is determined according to the target first signal corresponding to the target first power supply voltage mode.

It is to be understood that the preset table may further include a mapping relationship between each of the one or more first signals and the first event, or may further include a mapping relationship between the first event and the first supply voltage mode.

It should be noted that each first signal may be used only for determining that a first event occurs, and corresponds to a first supply voltage mode. The first signal may be, for example, a signal transmitted by one sensor through a cable, or a CAN signal transmitted by one CAN bus node through a CAN bus, and thus, the plurality of first signals are respectively used for indicating signals on different cables or CAN signals corresponding to different CAN bus nodes. For example, the 3 first signals respectively refer to the signals transmitted by the sensor a when the first event is a; when the first event is B, the signal transmitted by the sensor B and the first event is C, the CAN signal transmitted by the module C through the CAN bus, where the signal transmitted by the sensor a corresponds to the first supply voltage pattern a1, the signal transmitted by the sensor B corresponds to the first supply voltage pattern a2, and the CAN signal transmitted by the module C through the CAN bus corresponds to the first supply voltage pattern a 3.

Alternatively, the first signals may be indicative of a first event and correspond to a first supply voltage mode. For example, the plurality of first signals may be, for example, a signal transmitted by the D sensor, a signal transmitted by the E sensor, and a CAN signal transmitted by the F module through the CAN bus when the first event is D, where the signal transmitted by the D sensor, the signal transmitted by the E sensor, and the CAN signal transmitted by the F module through the CAN bus collectively correspond to the first power supply voltage pattern a 4.

In addition, optionally, in this embodiment of the application, when the terminal device is powered through the usb interface in the first power supply voltage mode, the operating voltage output by the usb interface is switched between a first operating voltage and a second operating voltage, where the first operating voltage is different from the second operating voltage, and a duration of the first operating voltage is the same as or different from a duration of the second operating voltage.

Illustratively, fig. 5 shows a plurality of first supply voltage modes. In an embodiment of the present application, when the terminal device is powered through the USB interface in the normal power supply voltage mode, the operating voltage output by the USB interface is a first operating voltage (e.g., 5V). As shown in fig. 5 (a), when the terminal device is powered through the USB interface in the first power supply voltage mode P, the operating voltage output by the USB interface is a third operating voltage (e.g., 2V). Wherein the first operating voltage is greater than the third operating voltage. Therefore, the terminal device can determine that the mobile device has the first event when detecting that the operating voltage output by the USB interface is reduced to 2V. Of course, the first operating voltage may also be smaller than the third operating voltage, but the third operating voltage at this time still needs to ensure that the terminal device is within the safe charging voltage.

In an embodiment of the present application, when the terminal device is powered through the USB interface in the normal power supply voltage mode, the operating voltage output by the USB interface is in a stable state, that is, the voltage output by the USB interface is the first operating voltage no matter how long the terminal device is powered, as shown in (b) in fig. 5 and (c) in fig. 5, and when the terminal device is powered through the USB interface in the first power supply voltage mode P, the operating voltage output by the USB interface is switched between the first operating voltage and the second operating voltage within a period of time (for example, 10 minutes or 5 minutes). The second operating voltage is different from the first operating voltage, for example, the second operating voltage is smaller than the first operating voltage. For example, the first operating voltage may be 5V and the second operating voltage may be 0V. For example, the operating voltage is 5V between time T1 and time T2, and 0 between time T2 and time T3. The operating voltage again becomes 5V between time T3 and time T4.

The time length between the time T1 and the time T2 may be equal to or different from the time T2 and the time T3. The time length between the T1 time and the T2 time and the time length between the T3 time and the T4 time may be equal or unequal, which is not limited in the embodiment of the present application.

Here, it should be noted that, in order to eliminate the situation that the supply voltage mode may be changed due to the fact that the USB data line is plugged and unplugged manually, the time duration corresponding to the first supply voltage mode provided by the mobile device once may be set to be implemented within the time duration (for example, the time duration of 1 second) that cannot be implemented by manual operation.

Optionally, in this embodiment of the application, when the first power supply voltage mode is used to supply power to the terminal device through the usb interface, the working voltage output by the usb interface is switched between a plurality of different working voltages, where the plurality of different working voltages respectively correspond to the same or different durations.

The magnitude of the working voltage corresponding to the first power supply voltage mode, the number of the working voltages, and the duration corresponding to each working voltage can be set as required, which is not limited in this application.

Illustratively, as shown in fig. 5 (d), the first supply voltage pattern P includes 7 voltage values, which are in turn: 3V, 0.5V, 5V, 0.5V, 3V, 0.5V, 5V. In addition, the corresponding duration of each operating voltage is the same.

As shown in (e) of fig. 5, the first power supply voltage pattern P includes 8 voltage values, which are, in order: 1V, 5V, 3V, 0V. In addition, the corresponding duration of the working voltage is the same or different for each voltage value.

Here, it should be noted that the supply voltage pattern may be changed due to the unstable power supply, and to eliminate this, the first supply voltage pattern may be set to be implemented for an extremely short period of time (for example, 1 second period of time), or the difference between the operating voltages in the first supply voltage pattern may be increased.

Based on this, since the mobile device and the terminal device both store the preset table, when a first event occurs to the mobile device, the target first power supply voltage mode to be sent to the terminal device may be determined according to the detected target first signal, and accordingly, the terminal device may reversely determine what the target first signal detected by the mobile device is according to the received target first power supply voltage mode. Therefore, when different first events occur, the mobile device can provide different first power supply voltage modes to the terminal device through the USB interface to distinguish, and when the corresponding terminal device receives the different first power supply voltage modes, the mobile device can know that different target first events occur.

The mobile device determines a corresponding target first power supply voltage mode according to the target first signal, namely after the target first signal is detected, searching in a stored preset table according to the target first signal, and thus determining the target first power supply voltage mode corresponding to the target first signal. The terminal device determines a corresponding target first signal from a preset table according to a target first power supply voltage mode, namely after receiving the target first power supply voltage mode, searching in the stored preset table according to the target first power supply voltage mode, and thus determining the target first signal corresponding to the target first power supply voltage mode. For example, the search mode may be a traversal mode, and of course, other modes may also be used, which is not limited in this application.

Optionally, in an embodiment of the present application, the method 100 includes:

and continuously indicating the mobile equipment to generate the first event to the terminal equipment for a plurality of times through the USB interface. Accordingly, the terminal device receives the indication from the mobile device through the USB interface for a plurality of consecutive times. In this implementation, the success rate of indication transmission and reception may be improved.

Optionally, the step of continuously indicating the mobile device to generate the first event for multiple times through the USB interface may be that a first signal is continuously sent to the terminal device multiple times through the USB interface; correspondingly, the terminal equipment receives the first signal from the mobile equipment for a plurality of times continuously through the USB interface.

Or, the indication of the occurrence of the first event to the mobile device for multiple times through the USB interface may be that the terminal device is powered for multiple times through the USB interface continuously in the first power supply voltage mode; correspondingly, the terminal equipment receives power supply from the mobile equipment for multiple times continuously in the first power supply voltage mode through the USB interface.

The number of times that the mobile device sends the first signal to the terminal device after detecting the first signal and the time duration of the sending interval can be set as required, or the number of times that the mobile device supplies power to the terminal device through the USB interface in the first power supply voltage mode and the time duration of the power supply interval can be set as required, which is not limited in this application.

In order to improve the reliability of the detection, the terminal device may set to trigger the first response again when the number of times of continuously receiving the first signal is greater than the preset threshold value according to the requirement.

Optionally, in this embodiment of the present application, the mobile device further includes a backup battery, and when the battery for supplying power to the USB interface is not available, the backup battery is used to supply power to the USB interface.

A mobile device typically includes a battery for powering the USB interface on the mobile device, as well as for powering all powered devices on the mobile device. However, when the first event occurs in the mobile device, which causes the battery to be disconnected from the USB interface, the battery originally supplying power to the USB interface cannot supply power, in this case, in order to improve the success rate of signal transmission, the standby battery may be used to supply power to the USB interface on the mobile device, and at the same time, supply power to the mobile device, so as to ensure that the first signal is transmitted to the terminal device.

It should be understood that the above description is only for the purpose of helping those skilled in the art better understand the embodiments of the present application, and is not intended to limit the scope of the embodiments of the present application. Various equivalent modifications or changes will be apparent to those skilled in the art from the examples given above, for example, some steps may not be necessary or some steps may be newly added in various embodiments of the communication method described above, etc. Or a combination of any two or more of the above embodiments. Such modifications, variations, or combinations are also within the scope of the embodiments of the present application.

It should also be understood that the foregoing descriptions of the embodiments of the present application focus on highlighting differences between the various embodiments, and that the same or similar elements that are not mentioned may be referred to one another and, for brevity, are not repeated herein.

It should also be understood that the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by the function and the inherent logic thereof, and should not constitute any limitation to the implementation process of the embodiments of the present application.

It should also be understood that in the embodiment of the present application, "preset", "predefined" may be implemented by saving a corresponding code, table, or other means that can be used to indicate related information in advance in a device (for example, including a mobile device and a terminal device), and the present application is not limited to a specific implementation manner thereof.

It should also be understood that the manner, the case, the category, and the division of the embodiments are only for convenience of description and should not be construed as a particular limitation, and features in various manners, the category, the case, and the embodiments may be combined without contradiction.

It is also to be understood that the terminology and/or the description of the various embodiments herein is consistent and mutually inconsistent if no specific statement or logic conflicts exists, and that the technical features of the various embodiments may be combined to form new embodiments based on their inherent logical relationships.

The communication method according to the embodiment of the present application is described in detail above with reference to fig. 3 to 5. Hereinafter, the communication device according to the embodiment of the present application will be described in detail with reference to fig. 6 and 7.

Fig. 6 shows a schematic block diagram of a communication apparatus provided in an embodiment of the present application, where the communication apparatus may correspond to the mobile device described in the method 100, and may also be a chip, a component, an integrated circuit, a sensor, a fusion module, a controller, and the like applied to the mobile device. And, each module or unit in the communication device is used to execute each action or processing procedure executed in the method 100.

The communication device is connected with the mobile equipment through a USB interface. As shown in fig. 6, the apparatus 600 includes: a detection module 610 and a sending module 620.

The detecting module 610 is configured to determine that a first event occurs at the mobile device.

And a sending module 620, configured to indicate the mobile device to the terminal device through the USB interface that the first event occurs.

The embodiment of the application provides a communication device, which comprises a detection module and a sending module, wherein the communication device is connected with a terminal device through a USB interface, when the communication device determines that a first event occurs in the mobile device, the communication device indicates the mobile device to generate the first event through the USB interface, and the terminal device triggers a first response under the indication, so that the purposes of low cost and convenience in adding an automatic communication function to the mobile device are achieved.

Optionally, in an embodiment of the present application, the sending module 620 is further configured to send a first signal to the terminal device through the universal serial bus interface, where the first signal is used to indicate that the mobile device has the first event.

Optionally, in an embodiment of the present application, the sending module 620 is further configured to use a first power supply voltage mode to supply power to the terminal device through the usb interface to indicate that the mobile device has a first event, where the first power supply voltage mode is different from a normal power supply voltage mode for supplying power to the mobile device through the usb interface when the first event does not occur.

Optionally, in an embodiment of the present application, the communication apparatus further includes a storage module 630, configured to store a preset table, where the preset table at least includes a mapping relationship between each of the one or more first signals and the first power supply voltage mode.

Based on this, the sending module 620 is configured to determine, according to the target first signal corresponding to the first event, a target first power supply voltage mode corresponding to the target first signal from a preset table;

and adopting a target first power supply voltage mode to supply power to the terminal equipment through the universal serial bus interface.

When the terminal equipment is powered through the universal serial bus interface in the first power supply voltage mode, the working voltage output by the universal serial bus interface is switched between a first working voltage and a second working voltage, wherein the first working voltage is different from the second working voltage, and the duration of the first working voltage is the same as or different from the duration of the second working voltage. Or when the first power supply voltage mode is adopted to supply power to the terminal equipment through the universal serial bus interface, the working voltage output by the universal serial bus interface is switched among a plurality of different working voltages, wherein the corresponding durations of the plurality of different working voltages are the same or different.

Optionally, in an embodiment of the present application, the sending module 620 is configured to:

the mobile device is instructed to generate the first event a plurality of times in succession via the universal serial bus interface.

Optionally, in an embodiment of the present application, the sending module 620 is configured to: continuously sending a first signal to the terminal equipment for multiple times through a universal serial bus interface; or, the terminal equipment is continuously supplied with power for multiple times through the universal serial bus interface by adopting the first power supply voltage mode.

Optionally, in an embodiment of the present application, when the communication device includes a backup battery, the backup battery of the communication device is used to supply power to the usb interface when the battery for supplying power to the usb interface is unavailable.

It should be understood that, for the specific process of each module (unit) in the communication device to execute the corresponding step, please refer to the foregoing description in conjunction with the method 100 and the description of the related embodiment in fig. 4, and for brevity, no further description is given here.

It should be understood that in the embodiment of the present application, the storage module 630 is also used for storing instructions executed by the detection module 610 and the sending module 620. The storage module 630 may be a memory and the transmission module may be a transmitter, an output interface or an interface circuit.

Fig. 7 shows another communication apparatus provided in the embodiment of the present application, where the communication apparatus is connected to a mobile device through a USB interface. As shown in fig. 7, the communication apparatus 700 includes a receiving module 710 and a processing module 720.

The receiving module 710 is configured to receive an indication from a mobile device through a universal serial bus interface.

The processing module 720 is configured to trigger a first response if it is determined that the first event occurs at the mobile device according to the indication of the mobile device.

The embodiment of the application provides a communication device, which comprises a receiving module and a processing module, wherein the communication device is connected with a mobile device, the mobile device indicates the mobile device to generate a first event to the communication device through a USB interface when determining that the first event occurs to the mobile device, and the communication device triggers a first response when determining that the first event occurs to the mobile device according to the indication of the mobile device, so that the purposes of low cost and convenience in adding automatic communication to the mobile device are achieved.

Optionally, in an embodiment of the present application, the receiving module 710 is configured to receive a first signal from the mobile device through the usb interface, where the first signal is used to indicate that the mobile device has a first event.

Based on this, the processing module 720 is configured to trigger a first response if it is determined that the first event occurs at the mobile device according to the first signal.

Optionally, in an embodiment of the present application, the receiving module 710 is configured to detect a power supply voltage mode in which the mobile device supplies power to the terminal device through the usb interface; and the processor is further configured to determine whether the power supply voltage mode is a first power supply voltage mode, where the first power supply voltage mode is used to indicate that a first event occurs in the mobile device, and the first power supply voltage mode is different from a power supply voltage mode detected when the first event does not occur and used for supplying power to the terminal device through the usb interface.

Based on this, the processing module 720 is configured to trigger a first response if the power supply voltage mode is the first power supply voltage mode and it is determined that the mobile device has the first event according to the first power supply voltage mode.

Optionally, in an embodiment of the present application, the communication apparatus further includes a storage module 730, where the storage module 730 is configured to store a preset table, and the preset table at least includes a mapping relationship between each of the one or more first signals and the first power supply voltage mode.

The receiving module 710 is further configured to determine whether a power supply voltage mode is different from a normal power supply voltage mode detected when the first event does not occur and used for supplying power to the terminal device through the usb interface;

taking the power supply voltage mode as a target first power supply voltage mode under different conditions;

and determining a target first signal corresponding to the target first power supply voltage mode from a preset table according to the target first power supply voltage mode.

The processing module 720 is configured to trigger a first response if it is determined that the first event occurs in the mobile device according to the target first signal corresponding to the target first power supply voltage mode.

Optionally, in an embodiment of the present application, the processing module 720 is further configured to receive an indication from the mobile device via the universal serial bus interface for a plurality of consecutive times.

Optionally, in an embodiment of the present application, the processing module 720 is configured to receive a first signal from the mobile device through the universal serial bus interface for multiple times in succession; or, the power supply voltage mode of the mobile equipment for supplying power to the terminal equipment is continuously detected for multiple times through the universal serial bus interface.

It should be understood that, for the sake of brevity, the detailed process of the communication apparatus to execute the above corresponding steps is not repeated herein, please refer to the foregoing description in conjunction with the method 100 and the related embodiment in fig. 4.

It should be understood that, in the embodiment of the present application, the storage module 730 is also used for storing instructions executed by the receiving module 710 and the processing module 720. The storage module 730 may be a memory and the receiving module 710 may be a receiver, an input interface or an interface circuit. The processing module 720 may be implemented by a processor.

The embodiment of the present application further provides a communication apparatus, including at least one processor, the at least one processor coupled with a memory; at least one processor configured to execute computer programs or instructions stored in the at least one memory to cause the apparatus to perform the communication method as described above.

The storage may be an internal storage unit of the display device in some embodiments, for example, a hard disk or a memory of the display device. The memory may also be an external storage device of the display device in other embodiments, such as a plug-in hard disk provided with the display device, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. The memory may also include both an internal storage unit of the display device and an external storage device. The memory is used for storing applications, data, and other programs, such as program codes of computer programs. The memory may also be used to temporarily store data that has been output or is to be output.

The Processor may be a Central Processing Unit (CPU), and the Processor may be other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It is to be understood that the illustrated configurations of the embodiments of the present application do not constitute a specific limitation on the communication apparatus, and in other embodiments, the communication apparatus may include more or less components than those shown, or combine some components, or split some components, or arrange different components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The embodiment of the present application further provides a terminal device, which includes at least one processor, where the at least one processor is coupled with a memory; at least one processor configured to execute computer programs or instructions stored in the at least one memory to cause the apparatus to perform the corresponding steps of the terminal device in the communication method as described above.

The memory and the processor are respectively the same as those in the communication device, and are not described herein again.

An embodiment of the present application also provides a computer program product, which includes a computer program, when being executed by a processor, is used for executing the above method.

Embodiments of the present application also provide a computer-readable storage medium, which stores a computer program or instructions, and when the computer program or instructions are read and executed by a computer, the computer is caused to execute the above method.

An embodiment of the present application further provides a chip or an integrated circuit, where the chip or the integrated circuit includes: and a processor for calling and running the computer program from the memory so that the device on which the chip or integrated circuit is mounted performs the above method.

Optionally, any one of the mobile devices provided in the embodiments of the present application may include the chip.

Optionally, the computer instructions are stored in a storage unit.

Alternatively, the storage unit is a storage unit in the chip, such as a register, a cache, and the like, and the storage unit may also be a storage unit located outside the chip in the terminal, such as a ROM or other types of static storage devices that can store static information and instructions, a RAM, and the like. The aforementioned processor may be a Central Processing Unit (CPU), and the processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. Or the aforementioned processors may also be one or more integrated circuits for controlling the execution of the programs of the aforementioned signal transmission methods. The processing unit and the storage unit may be decoupled, and are respectively disposed on different physical devices, and are connected in a wired or wireless manner to implement respective functions of the processing unit and the storage unit, so as to support the system chip to implement various functions in the foregoing embodiments. Alternatively, the processing unit and the memory may be coupled to the same device.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of Random Access Memory (RAM) are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct bus RAM (DR RAM).

The embodiment of the application also provides a vehicle for executing the communication method.

The embodiment of the application also provides a system, which comprises the mobile equipment and the terminal equipment, wherein the terminal equipment and the mobile equipment are respectively used for executing corresponding steps in the method.

Various objects such as various messages/information/devices/network elements/systems/devices/actions/operations/procedures/concepts may be named in the present application, it is to be understood that these specific names do not constitute limitations on related objects, and the named names may vary according to circumstances, contexts, or usage habits, and the understanding of the technical meaning of the technical terms in the present application should be mainly determined by the functions and technical effects embodied/performed in the technical solutions.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. 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 application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the unit is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the communication method according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), and random access.

Finally, it should be noted that: the above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (19)

1. A communication method is applied to a mobile device, the mobile device and a terminal device are connected through a universal serial bus interface, and the communication method comprises the following steps:

determining that a first event occurs at the mobile device;

and indicating the mobile equipment to generate a first event to the terminal equipment through the universal serial bus interface.

2. The communication method according to claim 1, wherein indicating to the terminal device through the usb interface that the first event occurred at the mobile device comprises:

and sending a first signal to the terminal equipment through the universal serial bus interface, wherein the first signal is used for indicating the mobile equipment to generate a first event.

3. The communication method according to claim 1, wherein indicating to the terminal device through the usb interface that the first event occurred at the mobile device comprises:

and adopting a first power supply voltage mode to supply power for the terminal equipment through the universal serial bus interface so as to indicate that the mobile equipment generates a first event, wherein the first power supply voltage mode is different from a normal power supply voltage mode for supplying power for the mobile equipment through the universal serial bus interface when the first event does not occur.

4. The communication method according to claim 3, wherein the terminal device is powered through the USB interface in a first power supply voltage mode, comprising:

determining a target first power supply voltage mode corresponding to the target first signal from a preset table according to the target first signal corresponding to the first event, wherein the preset table at least comprises a mapping relation between each first signal in one or more first signals and the first power supply voltage mode;

and adopting the target first power supply voltage mode to supply power to the terminal equipment through the universal serial bus interface.

5. The communication method according to claim 3 or 4, wherein when the terminal device is powered through the usb interface in the first power supply voltage mode, an operating voltage output by the usb interface is switched between a first operating voltage and a second operating voltage, wherein the first operating voltage and the second operating voltage are different, and a duration of the first operating voltage and a duration of the second operating voltage are the same or different.

6. The communication method according to claim 3 or 4, wherein when the terminal device is powered through the usb interface in the first power supply voltage mode, the operating voltage output by the usb interface is switched between a plurality of different operating voltages, wherein the different operating voltages respectively have the same or different corresponding durations.

7. The communication method according to any one of claims 1 to 6, characterized in that the method further comprises:

and continuously indicating the mobile equipment to generate a first event to the terminal equipment for multiple times through the universal serial bus interface.

8. The communication method according to any one of claims 1 to 7, characterized in that the method further comprises:

and when the battery for supplying power to the universal serial bus interface is unavailable, the standby battery of the mobile equipment is adopted for supplying power to the universal serial bus interface.

9. A communication method is applied to a terminal device, wherein the terminal device and a mobile device are connected through a universal serial bus interface, and the communication method comprises the following steps:

receiving an indication from the mobile device over the universal serial bus interface;

triggering a first response if it is determined that a first event occurred with the mobile device based on the indication of the mobile device.

10. The communication method of claim 9, wherein receiving an indication from the mobile device via the universal serial bus interface comprises:

receiving a first signal from the mobile device through the universal serial bus interface, wherein the first signal is used for indicating that a first event occurs in the mobile device;

in the event that it is determined from the indication of the mobile device that a first event occurred with the mobile device, triggering a first response, comprising:

triggering the first response if it is determined from the first signal that a first event occurred with the mobile device.

11. The communication method of claim 9, wherein receiving an indication from the mobile device via the universal serial bus interface comprises:

detecting a power supply voltage mode of the mobile equipment for supplying power to the terminal equipment through the universal serial bus interface;

determining whether the power supply voltage mode is a first power supply voltage mode, wherein the first power supply voltage mode is used for indicating that a first event occurs in the mobile device, and the first power supply voltage mode is different from the power supply voltage mode which is detected when the first event does not occur and is used for supplying power to the terminal device through the universal serial bus interface;

in the event that it is determined from the indication of the mobile device that a first event occurred with the mobile device, triggering a first response, comprising:

and triggering a first response when the power supply voltage mode is the first power supply voltage mode and the mobile equipment is determined to generate a first event according to the first power supply voltage mode.

12. The method of claim 11, wherein determining whether the supply voltage mode is a first supply voltage mode comprises:

determining whether the power supply voltage mode is different from a normal power supply voltage mode detected when a first event does not occur and supplying power to the terminal equipment through the universal serial bus interface;

taking the supply voltage pattern as a target first supply voltage pattern under different conditions;

determining a target first signal corresponding to the target first power supply voltage mode from a preset table according to the target first power supply voltage mode, wherein the preset table at least comprises a mapping relation between each first signal in one or more first signals and the first power supply voltage mode;

in the event that it is determined from the indication of the mobile device that a first event occurred with the mobile device, triggering a first response, comprising:

and triggering the first response when the mobile equipment is determined to generate a first event according to a target first signal corresponding to the target first power supply voltage mode.

13. The communication method according to any one of claims 9 to 12, characterized in that the method further comprises:

receiving an indication from the mobile device over the universal serial bus interface a plurality of consecutive times.

14. The communication method according to any one of claims 9 to 13, wherein the first response comprises: at least one of voice prompt, vibration prompt, dialing emergency call number.

15. A communications apparatus, for a mobile device, the apparatus comprising at least one processor coupled with a memory;

the at least one processor configured to execute computer programs or instructions stored in at least one of the memories to cause the apparatus to perform the communication method of any of claims 1 to 8.

16. A terminal device comprising at least one processor, the at least one processor coupled with a memory;

the at least one processor configured to execute computer programs or instructions stored in the at least one memory to cause the terminal device to perform the communication method according to any one of claims 9 to 14.

17. A computer-readable storage medium, in which a computer program or instructions are stored, which, when read and executed by a computer, cause the computer to execute the communication method according to any one of claims 1 to 8, or the communication method according to any one of claims 9 to 14.

18. A chip, comprising: a processor for calling and running a computer program from a memory so that a device in which the chip is installed performs the communication method according to any one of claims 1 to 8, or the communication method according to any one of claims 9 to 14.

19. A vehicle characterized in that it is adapted to carry out the communication method of any one of claims 1 to 8.

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