WO2018059595A1 - 车载无线交互方法、控制设备和车载设备 - Google Patents

车载无线交互方法、控制设备和车载设备 Download PDF

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Publication number
WO2018059595A1
WO2018059595A1 PCT/CN2017/105174 CN2017105174W WO2018059595A1 WO 2018059595 A1 WO2018059595 A1 WO 2018059595A1 CN 2017105174 W CN2017105174 W CN 2017105174W WO 2018059595 A1 WO2018059595 A1 WO 2018059595A1
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control
audio signal
dtmf
vehicle device
instruction
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PCT/CN2017/105174
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English (en)
French (fr)
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曾庆峰
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深圳创维汽车智能有限公司
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Publication of WO2018059595A1 publication Critical patent/WO2018059595A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

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  • the present disclosure relates to the field of in-vehicle technology, for example, to an in-vehicle wireless interaction method, a control device, and an in-vehicle device.
  • wireless communication modules such as Bluetooth, Wireless Fidelity (WIFI), General Packet Radio Service (GPRS) (eg, 3G, 4G), and infrared is commonly used in in-vehicle devices currently on the market.
  • WIFI Wireless Fidelity
  • GPRS General Packet Radio Service
  • 3G, 4G 3G, 4G
  • infrared is commonly used in in-vehicle devices currently on the market.
  • the in-vehicle device it is necessary to add a corresponding wireless communication hardware module to the in-vehicle device.
  • the types of devices that the Bluetooth module can connect to are limited, and the compatibility between devices having the Bluetooth module is poor.
  • the WIFI module is usually used for the transmission of media-type continuous data streams, and is not suitable for transmitting control commands to in-vehicle devices.
  • the GPRS module needs to rely on the signal base station, and the transmission control command cannot be implemented when the signal is not good or there is no signal.
  • the infrared module has higher requirements on the direction and is not convenient for the user to operate.
  • the present disclosure provides an in-vehicle wireless interaction method, a control device, and an in-vehicle device to solve the problem that the wireless interaction control of the in-vehicle device in the related art requires an increase in hardware cost.
  • the present disclosure provides a vehicle-mounted wireless interaction method, which is applied to a control device, and the method includes:
  • the method before the step of performing DTMF encoding on the control instruction, the method further includes:
  • control device After the control device starts the DTMF interaction mode, displaying a control input window;
  • Corresponding control instructions are generated according to the control information input in the control input window.
  • control information includes at least one of direct command information and event reservation information, where the direct command information includes: an action and a target, and the event reservation information includes: About time, execution actions and goals.
  • the input manner of the control information includes at least one of a text input and a voice input.
  • the step of sending the audio signal to the in-vehicle device includes:
  • the audio signal is transmitted to the in-vehicle device through a speaker of the control device.
  • the present disclosure provides an in-vehicle wireless interaction method, which is applied to an in-vehicle device, and the method includes:
  • the DTMF decoding of the audio signal acquires and executes a control command.
  • the step of receiving an audio signal includes:
  • the audio signal is received by a microphone of the in-vehicle device.
  • the step of executing the control instruction includes:
  • the processor of the in-vehicle device analyzes the control instruction to identify a control operation included in the control instruction
  • the processor controls an execution component corresponding to the control instruction to perform the control operation.
  • control device including:
  • the encoder is configured to: perform dual-tone multi-frequency DTMF encoding on the control instruction, so that the control instruction is converted into a corresponding audio signal;
  • the transmitter being connected to the encoder, the transmitter being configured to: send the audio signal to an in-vehicle device, to enable the in-vehicle device to perform DTMF decoding on the audio signal, acquire and execute the Control instruction.
  • the method further includes: an inputter and an instruction generator, the input device is connected to the instruction generator, and the instruction generator is connected to the encoder;
  • the input device is configured to: after the step of performing DTMF encoding on the control instruction, after the control device starts the DTMF interaction mode, displaying a control input window;
  • the instruction generator is configured to generate a corresponding control instruction according to the control information input in the control input window.
  • control information includes at least one of direct command information and an event reservation information, where the direct command information includes: an action and a target, the event reservation information includes: a reservation time, an execution action, and a target .
  • the input manner of the control information includes at least one of a text input and a voice input.
  • the transmitter is a speaker.
  • the present disclosure provides an in-vehicle device, including:
  • a receiver a decoder, a processor, and at least one execution component; the decoder and the at least one execution component are each coupled to the processor, the receiver being coupled to the decoder;
  • the receiver is configured to: receive a dual tone multi-frequency DTMF audio signal
  • the decoder is configured to: perform DTMF decoding on the audio signal to obtain a control instruction
  • the processor is configured to: perform analysis processing on the control instruction to identify a control operation included in the control instruction;
  • the execution component is configured to perform a control operation that is analyzed from the corresponding control command.
  • the receiver is a microphone.
  • the present disclosure also provides a computer readable storage medium storing computer executable instructions for performing any of the methods described above.
  • the present disclosure also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer, Having the computer perform any of the methods described above.
  • the invention provides an in-vehicle wireless interaction method, a control device and an in-vehicle device, which realizes wireless transmission of control commands by using DTMF codec technology, and can realize low interaction cost between the control device and the in-vehicle device.
  • FIG. 1 is a flowchart of a wireless interaction method based on DTMF technology according to an embodiment.
  • FIG. 2 is a flowchart of still another wireless interaction method based on DTMF technology according to an embodiment.
  • FIG. 3 is a structural block diagram of still another DTMF-based wireless interaction system according to an embodiment.
  • FIG. 4 is a structural block diagram of a DTMF-based wireless interaction system according to an embodiment.
  • FIG. 5 is a structural block diagram of a control device according to an embodiment.
  • FIG. 6 is a structural block diagram of an in-vehicle device according to an embodiment.
  • FIG. 7A is a schematic structural diagram of hardware of still another control device according to an embodiment.
  • FIG. 7B is a schematic structural diagram of hardware of another control device according to an embodiment.
  • FIG. 8 is a schematic structural diagram of hardware of another in-vehicle device according to an embodiment.
  • this embodiment provides a wireless interaction method based on dual-tone multi-frequency DTMF technology, which should For controlling a device, the method includes:
  • Step 110 Perform DTMF encoding on the control instruction to convert the control instruction into a corresponding audio signal.
  • Step 120 Send the audio signal to the in-vehicle device, so that the in-vehicle device acquires and executes the control instruction after performing DTMF decoding on the audio signal.
  • the DTMF encoder converts digital information (e.g., control command information) into DTMF signals and transmits them during encoding, wherein one DTMF signal is composed of a superposition of audio signals of two frequencies.
  • the frequencies of the two audio signals come from two sets of pre-assigned frequency groups: the line frequency group and the column frequency group.
  • the audio signal formed by each pair of line frequency group and column frequency group uniquely represents a number or symbol.
  • the DTMF encoder encodes the digital information and converts it into a corresponding audio signal, which can be transmitted to the receiver by means of the transmission of the audio signal.
  • the DTMF decoder decodes the audio signal received in the receiver, and can obtain digital information (such as control instruction information) therein, thereby realizing the transmission of digital information.
  • the digital information can be subsequently used to perform corresponding data processing.
  • the wireless interaction method based on the dual-tone multi-frequency DTMF technology provided in this embodiment converts the control command into a corresponding audio signal and transmits the in-vehicle device to analyze and process the control command, and performs corresponding control, thereby implementing control
  • the interaction between the device and the in-vehicle device is low in cost.
  • the method before the step of performing DTMF encoding on the control instruction, the method further includes:
  • control device After the control device starts the DTMF interaction mode, displaying a control input window;
  • Corresponding control instructions are generated according to the control information input in the control input window.
  • control information includes at least one of direct command information and an event reservation information
  • the direct command information includes: an action and a target
  • the event reservation information includes: a reservation time, an execution action, and a target .
  • the event reservation information is "turn on the air conditioner after 5 minutes", wherein “after 5 minutes” is the appointment time, “open” is the execution action, and "air conditioning" is the target.
  • the input manner of the control information includes at least one of a text input and a voice input.
  • the step of sending the audio signal to the in-vehicle device includes:
  • the audio signal is transmitted to the in-vehicle device through a speaker of the control device.
  • this embodiment provides another wireless interaction method based on dual-tone multi-frequency DTMF technology, which is applied to an in-vehicle device, and the method includes:
  • Step 210 Receive an audio signal.
  • Step 220 Perform DTMF decoding on the audio signal to acquire and execute the control instruction.
  • the audio signal is a signal obtained by the control device performing DTMF encoding on the control command.
  • the wireless interaction method based on the dual-tone multi-frequency DTMF technology obtaineds a control signal and performs corresponding control by receiving an audio signal and analyzing the received audio signal, thereby realizing a relationship between the control device and the vehicle-mounted device. Interaction, low cost.
  • the step of receiving an audio signal comprises receiving the audio signal by a microphone of the in-vehicle device.
  • the step of executing the control instruction comprises: analyzing, by the processor of the in-vehicle device, the control instruction to identify a control operation included in the control instruction; the processor controlling and The execution component corresponding to the control instruction performs the control operation.
  • this embodiment provides another wireless interaction method based on dual tone multi-frequency DTMF technology, including:
  • Step 310 The control device generates a control instruction and performs DTMF encoding on the control instruction, and converts the control instruction into a corresponding audio signal and sends the signal to the in-vehicle device.
  • Step 320 The in-vehicle device receives the audio signal and performs DTMF decoding to obtain the control instruction.
  • Step 330 The in-vehicle device analyzes the control instruction and executes the control instruction.
  • control device may be a portable mobile terminal including a speaker, such as a mobile phone or a tablet computer.
  • a DTMF interactive application is installed in the control device, and correspondingly includes DTMF encoding software (the corresponding hardware is a DTMF encoder).
  • the DTMF interactive application is opened, that is, when the DTMF interactive mode is started, a control input window is popped up in the input device of the control device for the user to input control information.
  • the control information may be text information or voice information.
  • the control information includes direct command information and event reservation information.
  • the command format of direct command information is usually: perform action + target, such as "navigate to A location", "add volume two grids".
  • the command format of the event reservation information increases the appointment time: the appointment time + the execution action + the target, such as "turn on the air conditioner after 5 minutes". Users can enter control information in text or voice.
  • the command format of the control information may also be other formats.
  • the DTMF encoder may extract the control information to obtain a command format, so that the user can input the control information at will.
  • the control device before the step 310, the control device generates a corresponding control instruction according to the control information input in the control input window.
  • the DTMF encoder performs DTMF encoding of the control command using DTMF technology to obtain an audio signal.
  • the control command is converted into a corresponding audio signal, and the audio signal (ie, the transmitted signal) can be played through the speaker of the control device.
  • the audio signal is received by a microphone of the in-vehicle device. Since the audio signal does not have any direction restrictions, it is easily received by the microphone.
  • the in-vehicle device includes a DTMF decoder (for example, a DTMF decoder is set in the host), and the microphone transmits the audio signal to the DTMF decoder for DTMF decoding, and restores the audio signal to a corresponding control command and transmits it to the processor on the host (for example, the main Control chip).
  • the control information is information input by the user, and the control command is data that can be recognized by the processor according to the control information conversion, and the two formats are different, but the control operations included are the same. Therefore, in the step 310, the processor of the in-vehicle device analyzes the control command, and can recognize the control operation included in the control command, that is, what control needs to be performed on the target. The processor controls the corresponding execution component in the in-vehicle device to execute the control command, thereby implementing corresponding control.
  • the processor starts the navigation module (executing component) according to the "navigation” command, and transmits the A location as a target to the navigation module, and the navigation module plans according to the A location and the current location of the user.
  • the navigation line transmits the navigation lines and maps to the display (an in-vehicle device) display.
  • the processor starts the timer according to the reservation time “after 5 minutes”, and after 5 minutes is reached, according to the execution action and the target "turn on the air conditioner", the output is turned on to the control of the air conditioner. Module to turn on the air conditioner.
  • the embodiment further provides a DTMF-based wireless interaction system, as shown in FIG. 4, including the control device 10 and the in-vehicle device 20.
  • the control device 10 generates a control command and performs DTMF encoding on the control command, converts the control command into a corresponding audio signal and transmits it.
  • the in-vehicle device 20 receives the audio signal and performs DTMF decoding to restore the audio signal to a corresponding control command; the in-vehicle device 20 analyzes the control command and performs corresponding control.
  • the control device 10 can be a mobile terminal such as a mobile phone or a tablet computer.
  • control device 10 includes: an input device 110, a DTMF encoder 120, and a Sounder 130;
  • the input unit 110 is configured to pop up a control input window when the DTMF interaction mode is started; and generate a corresponding control instruction according to the control information input by the control input window;
  • the DTMF encoder 120 is configured to convert the control command into a corresponding audio signal and transmit it to the speaker 130;
  • a speaker 130 is arranged to play the audio signal.
  • the in-vehicle device 20 includes:
  • a microphone 210 configured to receive the audio signal
  • the DTMF decoder 220 is configured to perform DTMF decoding on the audio signal to be restored to a corresponding control command
  • the processor 230 is configured to perform an analysis process on the control instruction to identify a control operation included in the control instruction;
  • At least one execution component 240 is configured to execute a control command.
  • the DTMF-based wireless interaction system generates a corresponding control instruction according to the control information input by the user, and converts the control instruction into a corresponding audio signal by using DTMF coding technology, and the vehicle device pairs the audio signal.
  • the DTMF decoding is performed, and the corresponding control command is restored and transmitted to the execution component in the in-vehicle device for execution, thereby realizing the interaction between the control device and the in-vehicle device, and the cost is low.
  • the DTMF decoding software ie, DTMF audio decoder
  • the DTMF audio decoder is added by software upgrade, and there is no need to replace the hardware platform.
  • a further control device 10 including:
  • the encoder 710 is configured to: perform dual-tone multi-frequency DTMF encoding on the control instruction, so that the control instruction is converted into a corresponding audio signal;
  • a transmitter 720 the transmitter is connected to the encoder, the transmitter is configured to: send the audio signal to an in-vehicle device, so that the in-vehicle device acquires and executes the DTMF decoding of the audio signal The control instructions.
  • the control device provided by the present disclosure realizes wireless transmission of control commands by using DTMF codec technology, and can realize low interaction cost between the control device and the in-vehicle device.
  • control device 10 further includes: an inputter 730 and an instruction generator 740, The inputter 730 is connected to the instruction generator 740, and the instruction generator 740 is connected to the encoder 710;
  • the inputter 730 is configured to: after the step of performing DTMF encoding on the control instruction, after the control device starts the DTMF interaction mode, displaying a control input window;
  • the instruction generator 740 is configured to generate a corresponding control instruction according to the control information input in the control input window.
  • control information includes at least one of direct command information and an event reservation information, where the direct command information includes: an action and a target, the event reservation information includes: a reservation time, an execution action, and a target .
  • the input manner of the control information includes at least one of a text input and a voice input.
  • the transmitter 720 is a speaker.
  • a further in-vehicle device 20 including:
  • a receiver 810 a decoder 821, a processor 822, and at least one execution component 823; the decoder 821 and the at least one execution component 823 are both coupled to the processor 822, the receiver 810 and the decoder 821 connection;
  • the receiver 810 is configured to: receive the dual tone multi-frequency DTMF audio signal;
  • a decoder 821 configured to: perform DTMF decoding on the audio signal to obtain a control instruction
  • the processor 822 is configured to: perform an analysis process on the control instruction to identify a control operation included in the control instruction;
  • the execution unit 823 is configured to execute a control operation analyzed from the corresponding control command.
  • the in-vehicle device provided by the present disclosure realizes wireless transmission of control commands by using DTMF codec technology, and can realize low interaction cost between the control device and the in-vehicle device.
  • the receiver 810 is a microphone.
  • the embodiment further provides a computer readable storage medium storing computer executable instructions for performing any of the above methods.
  • the vehicle-mounted wireless interaction method, the control device and the vehicle-mounted device provided by the present disclosure Converting to a corresponding audio signal and transmitting the in-vehicle device to analyze and process the control command, and performing corresponding control, thereby realizing interaction between the control device and the in-vehicle device, and the cost is low.

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Abstract

一种车载无线交互方法、控制设备和车载设备，所述车载无线交互方法包括步骤：对控制指令进行双音多频DTMF编码，以使所述控制指令转换为对应的音频信号；以及发送所述音频信号到车载设备，以使所述车载设备对所述音频信号进行DTMF解码后获取并执行所述控制指令。

Description

车载无线交互方法、控制设备和车载设备 技术领域
本公开涉及车载技术领域，例如涉及一种车载无线交互方法、控制设备和车载设备。
背景技术
随着车联网技术的发展，汽车内的车载设备的功能逐渐增多且更加丰富，对无线交互需求更加频繁。当前市场上的车载设备中通常使用通常蓝牙、无线局域网(Wireless Fidelity，WIFI)、通用分组无线服务(General Packet Radio Service，GPRS)(例如3G、4G)、红外等无线通信模块中的至少一种来实现控制设备与车载设备的交互。
要实现上述功能，需要在车载设备中增加对应的无线通信硬件模块。另外，上述无线通信模块中，蓝牙模块能连接的设备种类有限，且具有蓝牙模块的设备间的兼容性较差。WIFI模块通常用于媒体类连续数据流的传输，不适用于向车载设备中传输控制指令。GPRS模块需要依赖信号基站，当信号不好或没有信号时则无法实现传输控制指令。红外模块对方向的要求较高，不方便用户操作。
发明内容
本公开提供一种车载无线交互方法、控制设备和车载设备，以解决相关技术中对车载设备进行无线交互控制需要增加硬件成本的问题。
本公开提供一种车载无线交互方法，应用于控制设备，所述方法包括：
对控制指令进行双音多频DTMF编码，以使所述控制指令转换为对应的音频信号；
发送所述音频信号到车载设备，以使所述车载设备对所述音频信号进行DTMF解码后获取并执行所述控制指令。
可选地，在所述对控制指令进行DTMF编码的步骤之前，还包括：
当所述控制设备启动DTMF交互模式后，显示控制输入窗口；
根据所述控制输入窗口中输入的控制信息生成对应的控制指令。
可选地，所述控制信息包括直接命令信息和事件预约信息中的至少一种，其中，所述直接命令信息包括：执行动作和目标，所述事件预约信息包括：预 约时间、执行动作和目标。
可选地，所述控制信息的输入方式包括文字输入和语音输入中的至少一种。
可选地，所述发送所述音频信号到车载设备的步骤，包括：
通过所述控制设备的扬声器发送所述音频信号到所述车载设备。
本公开提供一种车载无线交互方法，应用于车载设备，所述方法包括：
接收双音多频DTMF音频信号；
对所述音频信号进行DTMF解码后获取并执行控制指令。
可选地，所述接收音频信号的步骤包括：
由所述车载设备的话筒接收所述音频信号。
可选地，所述执行所述控制指令的步骤包括：
所述车载设备的处理器对所述控制指令进行分析处理，以识别出所述控制指令中包括的控制操作；
所述处理器控制与所述控制指令对应的执行部件执行所述控制操作。
本公开提供一种控制设备，包括：
编码器，设置为：对控制指令进行双音多频DTMF编码，以使所述控制指令转换为对应的音频信号；
发送器，所述发送器与所述编码器连接，所述发送器设置为：发送所述音频信号到车载设备，以使所述车载设备对所述音频信号进行DTMF解码后获取并执行所述控制指令。
可选地，还包括：输入器和指令生成器，所述输入器与所述指令生成器连接，所述指令生成器与所述编码器连接；
所述输入器，设置为：在所述对控制指令进行DTMF编码的步骤之前，当所述控制设备启动DTMF交互模式后，显示控制输入窗口；
所述指令生成器，设置为：根据所述控制输入窗口中输入的控制信息生成对应的控制指令。
可选地，所述控制信息包括直接命令信息和事件预约信息中的至少一种，其中，所述直接命令信息包括：执行动作和目标，所述事件预约信息包括：预约时间、执行动作和目标。
可选地，所述控制信息的输入方式包括文字输入和语音输入中的至少一种。
可选地，所述发送器为扬声器。
本公开提供一种车载设备，包括：
接收器、解码器、处理器和至少一个执行部件；所述解码器和所述至少一个执行部件均与所述处理器连接，所述接收器与所述解码器连接；
所述接收器设置为：接收双音多频DTMF音频信号；
所述解码器设置为：对所述音频信号进行DTMF解码以获取控制指令；
所述处理器设置为：对所述控制指令进行分析处理，以识别出所述控制指令中包括的控制操作；
所述执行部件设置为：执行从对应的控制指令中分析出的控制操作。
可选地，所述接收器为话筒。
本公开还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述任一方法。
本公开还提供了一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行上述任一方法。
本公开提供的一种车载无线交互方法、控制设备和车载设备，利用DTMF编解码技术实现控制指令的无线传输，可以实现控制设备与车载设备之间的交互成本低。
附图说明
图1是一实施例提供的一种基于DTMF技术的无线交互方法的流程图。
图2是一实施例提供的又一种基于DTMF技术的无线交互方法流程图。
图3是一实施例提供的又一种基于DTMF的无线交互系统的结构框图。
图4是一实施例提供的一种基于DTMF的无线交互系统的结构框图。
图5是一实施例提供的一种控制设备的结构框图。
图6是一实施例提供的一种车载设备的结构框图。
图7A是一实施例提供的又一种控制设备的硬件结构示意图。
图7B是一实施例提供的又一种控制设备的硬件结构示意图。
图8是一实施例提供的又一种车载设备的硬件结构示意图。
具体实施方式
参考图1，本实施例提供一种基于双音多频DTMF技术的无线交互方法，应 用于控制设备，所述方法包括：
步骤110、对控制指令进行DTMF编码，以使所述控制指令转换为对应的音频信号。
步骤120、发送所述音频信号到车载设备，以使所述车载设备对所述音频信号进行DTMF解码后获取并执行所述控制指令。
DTMF编码和解码过程如下：DTMF编码器在编码时将数字信息(例如控制指令信息)转换成DTMF信号并发送，其中，一个DTMF信号由两个频率的音频信号叠加构成。这两个音频信号的频率来自两组预分配的频率组：行频组和列频组。每一对行频组和列频组所构成的音频信号唯一表示一个数字或符号。DTMF编码器对数字信息进行编码后将其转化为对应的音频信号，可以借助音频信号的传输方式发送到接收器中。DTMF解码器对接收器中接收到的音频信号进行解码，可以得到其中的数字信息(例如控制指令信息)，从而实现数字信息的传递。后续可以利用该数字信息进行相应的数据处理过程。
本实施例提供的基于双音多频DTMF技术的无线交互方法，通过将控制指令转换为对应的音频信号并发射出所述车载设备对所述控制指令进行分析处理，执行相应的控制，从而实现控制设备与车载设备之间的交互，成本低。
可选地，在所述对控制指令进行DTMF编码的步骤之前，还包括：
当所述控制设备启动DTMF交互模式后，显示控制输入窗口；
根据所述控制输入窗口中输入的控制信息生成对应的控制指令。
可选地，所述控制信息包括直接命令信息和事件预约信息中的至少一种，其中，所述直接命令信息包括：执行动作和目标，所述事件预约信息包括：预约时间、执行动作和目标。例如，事件预约信息是“5分钟后打开空调”，其中，“5分钟后”为预约时间，“打开”为执行动作，“空调”为目标。
可选地，所述控制信息的输入方式包括文字输入和语音输入中的至少一种。
可选地，所述发送所述音频信号到车载设备的步骤，包括：
通过所述控制设备的扬声器发送所述音频信号到所述车载设备。
参考图2，本实施例提供又一种基于双音多频DTMF技术的无线交互方法，应用于车载设备，所述方法包括：
步骤210、接收音频信号。
步骤220、对所述音频信号进行DTMF解码后获取并执行所述控制指令。
其中，所述音频信号为控制设备对控制指令进行DTMF编码后得到的信号
本实施例提供的基于双音多频DTMF技术的无线交互方法，通过接收音频信号并对所述收音频信号进行分析，以得到控制指令并执行相应的控制，从而实现控制设备与车载设备之间的交互，成本低。
可选地，所述接收音频信号的步骤包括：由所述车载设备的话筒接收所述音频信号。
可选地，所述执行所述控制指令的步骤包括：所述车载设备的处理器对所述控制指令进行分析处理，以识别出所述控制指令中包括的控制操作；所述处理器控制与所述控制指令对应的执行部件执行所述控制操作。
请参阅图3，本实施例提供又一种基于双音多频DTMF技术的无线交互方法包括：
步骤310、控制设备生成控制指令并对所述控制指令进行DTMF编码，以及将所述控制指令转换为对应的音频信号并发送到所述车载设备。
步骤320、车载设备接收所述音频信号并进行DTMF解码，以得到所述控制指令。
步骤330、所述车载设备对所述控制指令进行分析，并执行所述控制指令。
在本实施例中，所述控制设备可为手机、平板电脑等包括扬声器的便携式移动终端。所述控制设备中安装有DTMF交互应用，对应地包括DTMF编码软件(对应的硬件为DTMF编码器)。可选地，当该DTMF交互应用打开时，即启动DTMF交互模式时，控制设备的输入器中弹出控制输入窗口以便用户输入控制信息。所述控制信息可以为文字信息或语音信息。可选地，控制信息包括直接命令信息和事件预约信息。直接命令信息的命令格式通常为：执行动作+目标，如“导航至A地点”，“增加音量两格”。事件预约信息的命令格式则增加预约时间：预约时间+执行动作+目标，如“5分钟后打开空调”。用户可以采用文字或语音的方式输入控制信息。控制信息的命令格式还可以为其他格式，上述DTMF编码器可以对控制信息进行提取以得到命令格式，使得用户可以随意的输入控制信息。
可选地，在所述步骤310之前，控制设备根据控制输入窗口中输入的控制信息生成对应的控制指令。在所述步骤310中，可选地，DTMF编码器采用DTMF技术对控制指令进行DTMF编码以获得音频信号。从而实现将控制指令转换为对应的音频信号，可以通过控制设备的扬声器播放该音频信号(即发射信号)。
可选地，在所述步骤320中，由车载设备的话筒接收所述音频信号。由于该音频信号没有任何方向限制，易被话筒接收到。车载设备包括DTMF解码器(例如在主机中设置DTMF解码器)，话筒将音频信号传输给DTMF解码器进行DTMF解码，将音频信号还原为对应的控制指令并传输给主机上的处理器(例如主控芯片)。
控制信息是用户输入的信息，控制指令是根据控制信息转换的处理器能识别的数据，两者格式不同，但所包括的控制操作相同。因此，在所述步骤310中，车载设备的处理器对控制指令进行分析处理，即可识别出该控制指令所包括的控制操作，即需要对目标进行什么控制。处理器控制车载设备中对应的执行部件执行该控制指令，从而实现相应的控制。
例如，若控制指令是“导航至A地点”，则处理器根据“导航”指令启动导航模块(执行部件)，将A地点作为目标传输给导航模块，导航模块根据A地点和用户的当前位置规划导航线路，将导航线路和地图传输至显示屏(一种车载设备)显示。
当控制指令是“5分钟后打开空调”时，则处理器根据预约时间“5分钟后”启动定时器，在5分钟达到后，根据执行动作和目标“打开空调”输出开启信号给空调的控制模块，以打开空调。
基于上述实施例，本实施例还提供一种基于DTMF的无线交互系统，如图4所示，包括控制设备10和车载设备20。所述控制设备10生成控制指令并该控制指令进行DTMF编码，将控制指令转换为对应的音频信号并发射出。车载设备20接收所述音频信号并进行DTMF解码，将音频信号还原为对应的控制指令；所述车载设备20对所述控制指令进行分析处理，并执行相应的控制。其中，所述控制设备10可以为手机、平板电脑等移动终端。
可选地，参考图5，控制设备10包括：输入器110、DTMF编码器120和扬 声器130；
输入器110，设置为当启动DTMF交互模式时，弹出控制输入窗口；并根据控制输入窗口输入的控制信息生成对应的控制指令；
DTMF编码器120，设置为将控制指令转换为对应的音频信号，并传输给所述扬声器130；
扬声器130，设置为播放所述音频信号。
可选地，参考图6，所述车载设备20包括：
话筒210，用于接收所述音频信号；
DTMF解码器220，设置为对音频信号进行DTMF解码，以还原为对应的控制指令；
处理器230，设置为对控制指令进行分析处理，以识别出该控制指令中所包括的控制操作；
至少一个执行部件240，设置为执行控制指令。
综上所述，本实施例提供的一种基于DTMF的无线交互系统，根据用户输入的控制信息生成对应的控制指令，采用DTMF编码技术将控制指令转换为对应的音频信号，车载设备对音频信号进行DTMF解码，还原为对应的控制指令并传送给车载设备中的执行部件执行，从而实现了控制设备与车载设备之间的交互，成本低。在没有WIFI或红外等通信模块的车载设备中，依靠软件升级即增加DTMF解码软件(即DTMF音频解码器)，无需更换硬件平台。
在另一实施例中，参考图7A，提供又一种控制设备10，包括：
编码器710，设置为：对控制指令进行双音多频DTMF编码，以使所述控制指令转换为对应的音频信号；以及
发送器720，所述发送器与所述编码器连接，所述发送器设置为：发送所述音频信号到车载设备，以使所述车载设备对所述音频信号进行DTMF解码后获取并执行所述控制指令。
本公开提供的控制设备，利用DTMF编解码技术实现控制指令的无线传输，可以实现控制设备与车载设备之间的交互成本低。
可选地，参考图7B，控制设备10还包括：输入器730和指令生成器740， 所述输入器730与所述指令生成器740连接，所述指令生成器740与所述编码器710连接；
所述输入器730设置为：在所述对控制指令进行DTMF编码的步骤之前，当所述控制设备启动DTMF交互模式后，显示控制输入窗口；
所述指令生成器740设置为：根据所述控制输入窗口中输入的控制信息生成对应的控制指令。
可选地，所述控制信息包括直接命令信息和事件预约信息中的至少一种，其中，所述直接命令信息包括：执行动作和目标，所述事件预约信息包括：预约时间、执行动作和目标。
可选地，所述控制信息的输入方式包括文字输入和语音输入中的至少一种。
可选地，所述发送器720为扬声器。
在另一实施例中，参考图8，提供又一种车载设备20，包括：
接收器810、解码器821、处理器822和至少一个执行部件823；所述解码器821和所述至少一个执行部件823均与所述处理器822连接，所述接收器810与所述解码器821连接；
接收器810，设置为：接收双音多频DTMF音频信号；
解码器821，设置为：对所述音频信号进行DTMF解码以获取控制指令；
处理器822设置为：对所述控制指令进行分析处理，以识别出所述控制指令中包括的控制操作；以及
执行部件823设置为：执行从对应的控制指令中分析出的控制操作。
本公开提供的车载设备，利用DTMF编解码技术实现控制指令的无线传输，可以实现控制设备与车载设备之间的交互成本低。
可选地，所述接收器810为话筒。
本实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述任一方法。
工业实用性
本公开提供的车载无线交互方法、控制设备和车载设备，通过将控制指令 转换为对应的音频信号并发射出所述车载设备对所述控制指令进行分析处理，执行相应的控制，从而实现控制设备与车载设备之间的交互，成本低。

Claims (16)

  1. 一种车载无线交互方法，应用于控制设备，所述方法包括：
    对控制指令进行双音多频DTMF编码，以使所述控制指令转换为对应的音频信号；
    发送所述音频信号到车载设备，以使所述车载设备对所述音频信号进行DTMF解码后获取并执行所述控制指令。
  2. 根据权利要求1所述的方法，在所述对控制指令进行DTMF编码的步骤之前，还包括：
    当所述控制设备启动DTMF交互模式后，显示控制输入窗口；
    根据所述控制输入窗口中输入的控制信息生成对应的控制指令。
  3. 根据权利要求2所述的方法，所述控制信息包括直接命令信息和事件预约信息中的至少一种，其中，所述直接命令信息包括：执行动作和目标，所述事件预约信息包括：预约时间、执行动作和目标。
  4. 根据权利要求2所述的方法，所述控制信息的输入方式包括文字输入和语音输入中的至少一种。
  5. 根据权利要求1所述的方法，所述发送所述音频信号到车载设备的步骤，包括：
    通过所述控制设备的扬声器发送所述音频信号到所述车载设备。
  6. 一种车载无线交互方法，应用于车载设备，所述方法包括：
    接收双音多频DTMF音频信号；
    对所述音频信号进行DTMF解码后获取并执行控制指令。
  7. 根据权利要求6所述的方法，所述接收音频信号的步骤包括：
    由所述车载设备的话筒接收所述音频信号。
  8. 根据权利要求6所述的方法，所述执行所述控制指令的步骤包括：
    所述车载设备的处理器对所述控制指令进行分析处理，以识别出所述控制指令中包括的控制操作；
    所述处理器控制与所述控制指令对应的执行部件执行所述控制操作。
  9. 一种控制设备，包括：
    编码器，设置为：对控制指令进行双音多频DTMF编码，以使所述控制指令转换为对应的音频信号；
    发送器，所述发送器与所述编码器连接，所述发送器设置为：发送所述音频信号到车载设备，以使所述车载设备对所述音频信号进行DTMF解码后获取 并执行所述控制指令。
  10. 根据权利要求9所述的控制设备，还包括：输入器和指令生成器，所述输入器与所述指令生成器连接，所述指令生成器与所述编码器连接；
    所述输入器，设置为：在所述对控制指令进行DTMF编码的步骤之前，当所述控制设备启动DTMF交互模式后，显示控制输入窗口；
    所述指令生成器，设置为：根据所述控制输入窗口中输入的控制信息生成对应的控制指令。
  11. 根据权利要求10所述的控制设备，所述控制信息包括直接命令信息和事件预约信息中的至少一种，其中，所述直接命令信息包括：执行动作和目标，所述事件预约信息包括：预约时间、执行动作和目标。
  12. 根据权利要求10所述的控制设备，所述控制信息的输入方式包括文字输入和语音输入中的至少一种。
  13. 根据权利要求9所述的控制设备，所述发送器为扬声器。
  14. 一种车载设备，包括：接收器、解码器、处理器和至少一个执行部件；所述解码器和所述至少一个执行部件均与所述处理器连接，所述接收器与所述解码器连接；
    所述接收器设置为：接收双音多频DTMF音频信号；
    所述解码器设置为：对所述音频信号进行DTMF解码以获取控制指令；
    所述处理器设置为：对所述控制指令进行分析处理，以识别出所述控制指令中包括的控制操作；
    所述执行部件设置为：执行从对应的控制指令中分析出的控制操作。
  15. 根据权利要求14所述的车载设备，所述接收器为话筒。
  16. 一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求1-5和6-8中任一项的方法。
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