WO2017101685A1 - 一种无线通信装置 - Google Patents

一种无线通信装置 Download PDF

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Publication number
WO2017101685A1
WO2017101685A1 PCT/CN2016/108361 CN2016108361W WO2017101685A1 WO 2017101685 A1 WO2017101685 A1 WO 2017101685A1 CN 2016108361 W CN2016108361 W CN 2016108361W WO 2017101685 A1 WO2017101685 A1 WO 2017101685A1
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circuit
usb interface
bluetooth
wifi
wireless communication
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PCT/CN2016/108361
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English (en)
French (fr)
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胡华智
王栋
谢惠鹏
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广州亿航智能技术有限公司
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Publication of WO2017101685A1 publication Critical patent/WO2017101685A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems

Definitions

  • the present application relates to the field of communication devices, and in particular, to a wireless communication device.
  • the operation of the aircraft such as the drone includes real-time control by the remote controller, and control by the ground station via the wireless link forwarding control command of the control platform.
  • the latter does not require the controller to have the skills of remote flight, easy to operate, and can achieve over-the-horizon flight.
  • the digital transmission module has the advantage of strong transmission data performance, but the volume is large and the power consumption is large.
  • the ground station needs to connect a dedicated digital transmission module and a high-power antenna, which is inconvenient to carry.
  • Bluetooth or Wifi such as AR.Drone
  • a wireless communication device includes a communication circuit for establishing a wireless link for data communication with a controlled aircraft, and further includes a Bluetooth circuit, a WiFi circuit, a USB interface circuit, and a mode switching circuit.
  • the Bluetooth circuit and the WiFi circuit are connected to a first input and output end of the mode switching circuit, the USB interface circuit is connected to a second input and output end of the mode switching circuit, and the mode switching circuit further connects the communication Circuit
  • the communication circuit When the USB interface of the USB interface circuit is in a connected state, the communication circuit communicates with the USB interface circuit through the mode switching circuit; when the USB interface of the USB interface circuit is in an unconnected state, the communication circuit passes The mode switching circuit is in communication with the Bluetooth circuit and the WiFi circuit.
  • the method further includes a power circuit, wherein the communication circuit, the Bluetooth circuit, and the WiFi circuit are respectively connected to the power circuit.
  • the power circuit includes a power management chip, a rechargeable battery connected to the power management chip, and a low dropout linear stabilizer;
  • the rechargeable battery is charged through the USB interface.
  • the rechargeable battery is a 3.3V-4.2V lithium battery.
  • the power circuit further includes a switch button and an indicator light, and the switch button and the indicator light are respectively connected to the power management chip;
  • the indicator light includes a power indicator light and a power indicator light.
  • the Bluetooth circuit comprises a Bluetooth module and a Bluetooth antenna
  • the WiFi circuit comprises a WiFi module and a WiFi antenna
  • the Bluetooth module is connected to the Bluetooth antenna, and the WiFi module is connected to the WiFi antenna.
  • the Bluetooth module and the WiFi module are integrated in the same integrated chip, and the Bluetooth antenna and the WiFi antenna are the same antenna.
  • the USB interface circuit further includes a USB to serial port circuit connected to the USB interface, and the USB interface circuit is connected to the mode switching circuit through the USB to serial port circuit.
  • the communication circuit comprises a wireless communication module and a communication antenna, and the wireless communication module is connected to the communication antenna.
  • the wireless communication device of the present application has multiple communication interfaces, can receive data transmitted by a mobile phone or a ground station via Bluetooth or WiFi, or receive data transmitted by the communication terminal through the USB interface, and forward the received data to the aircraft (unmanned This makes it unnecessary for the mobile phone or the ground station to connect to the data transmission module by wire for data forwarding.
  • the wireless communication device is convenient to operate, small in size, convenient to carry, and can establish a stable, reliable, and sufficient communication radius wireless chain. road.
  • FIG. 1 is a schematic diagram of a wireless communication device according to Embodiment 1;
  • FIG. 2 is a schematic diagram of a wireless communication device of Embodiment 2.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the wireless communication device of this embodiment mainly includes: a communication circuit, a Bluetooth circuit, a WiFi circuit, a USB interface circuit, and a mode switching circuit.
  • the communication circuit is used for establishing a wireless link to perform data communication with an external device
  • the Bluetooth circuit and the WiFi circuit are mainly used for data communication with the communication terminal and the communication circuit
  • the USB interface circuit is used for the communication terminal and the communication circuit connected with the USB. data communication.
  • the communication terminal is a mobile phone or a ground station
  • the external device mainly refers to an aircraft such as a drone.
  • the mode switching circuit is configured to select a data communication mode according to a connection state of a USB interface of the USB interface circuit.
  • the mode of the communication data is selected by the mode switching circuit.
  • the mode switching circuit When the USB is plugged in, the communication between the communication circuit and the USB interface circuit is realized.
  • the USB When the USB is disconnected, the data is realized between the communication circuit and the Bluetooth circuit and the WiFi circuit. Communication.
  • the mode switching circuit is implemented by a hardware circuit, and is not implemented by using a computer program.
  • the Bluetooth circuit and the WiFi circuit are connected to a first input and output end of the mode switching circuit
  • the USB interface circuit is connected to a second input and output end of the mode switching circuit
  • the mode switching circuit is further connected.
  • the mode switching circuit automatically switches to the second input/output terminal when the USB interface of the USB interface circuit is in a connected state, and the communication circuit passes the mode switching circuit according to the mode switching circuit and the connection manner thereof.
  • the USB interface circuit communicates; when the USB interface of the USB interface circuit is in an unconnected state, the mode switching circuit automatically switches to the first input/output terminal, and the communication circuit passes the mode switching circuit and the Bluetooth The circuit communicates with the WiFi circuit.
  • the wireless communication device of this embodiment further includes a power supply circuit, and the communication circuit, the Bluetooth circuit, and the WiFi circuit are respectively connected to the power supply circuit.
  • the Bluetooth circuit comprises a Bluetooth module and a Bluetooth antenna
  • the WiFi circuit comprises WiFi a module and a WiFi antenna
  • the Bluetooth module is connected to the Bluetooth antenna
  • the WiFi module is connected to the WiFi antenna.
  • the Bluetooth module is a PCBA board integrated with Bluetooth function
  • the WiFi module is a PCBA board with integrated WiFi function.
  • the WiFi module uses a 2.4G WiFi antenna to receive a WiFi signal, and can implement a WiFi to serial TTL, full duplex, transparent transmission working mode, and can be connected with a WiFi module of an Android or iOS system to implement the WiFi circuit and the mobile phone, etc. Real-time stable WiFi data transmission between communication terminals.
  • the Bluetooth module receives the Bluetooth signal through the 2.4G Bluetooth antenna, realizes the Bluetooth to serial TTL, full duplex, transparent transmission working mode, and can connect with the Bluetooth 2.0 of the Android system or the Bluetooth 4.0 of the iOS system to implement the Bluetooth.
  • Real-time stable Bluetooth data transmission between communication circuits such as circuits and mobile phones.
  • the Bluetooth module and the WiFi module may be integrated into the same integrated chip, and the Bluetooth antenna and the WiFi antenna are the same antenna.
  • the wireless communication device of the embodiment is small in size, light in weight, and easy to carry by the integrated chip and the shared antenna.
  • the USB interface circuit includes a USB interface, and further includes a USB to serial port circuit connected to the USB interface; the USB interface circuit is connected to the mode switching circuit through a USB to serial port circuit.
  • the USB to serial port circuit is configured to convert a control signal transmitted through the USB interface into a serial port TTL signal to implement a full duplex and transparent transmission working mode.
  • the communication circuit comprises a wireless communication module and a communication antenna
  • the wireless communication module can be a 2.4 GHz integrated module
  • the working frequency segment is between 2400 MHz and 2483.5 MHz
  • the communication antenna uses a 2.4 GHz antenna to receive the communication signal.
  • the wireless communication module can realize wireless to serial TTL, full-duplex, transparent transmission working mode, and has a unique independent network ID uniquely paired with an external device, and the communication circuit and the external device such as an aircraft can be real-time, stable, and long. Distance communication, communication distance can reach more than 1 km.
  • the power supply circuit in this embodiment includes a power management chip, a rechargeable battery connected to the power management chip, and a low dropout regulator (LDO).
  • LDO low dropout regulator
  • the wireless communication device of the embodiment has multiple communication interfaces, can receive data transmitted by the mobile phone or the ground station through Bluetooth or WiFi, or receive data transmitted by the communication terminal through the USB interface, and forward the received data to the aircraft. This makes it unnecessary for the mobile phone or the ground station to connect to the data transmission module by wire for data forwarding.
  • the wireless communication device is convenient to operate, small in size, convenient to carry, and can establish a stable, reliable wireless link with sufficient communication radius; Through the mode switching circuit, it can also automatically switch between Bluetooth/WiFi mode and USB interface mode.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the main difference between the embodiment and the second embodiment includes: the power circuit further includes a switch button and an indication connected to the power management chip. light.
  • the switch button When the switch button is pressed, the wireless communication device is turned on, the indicator light is on; when the switch button is raised, the wireless communication device is turned off, and the indicator light is off.
  • the indicator light includes a power indicator and a power indicator.
  • the power indicator is used to indicate a power on/off state, and the power indicator is used to indicate a current power of the rechargeable battery.
  • the wireless communication device After the switch button is pressed, the wireless communication device is turned on, and the power indicator light is on.
  • the power management chip does not detect the connection state of the USB interface, the voltage of the rechargeable battery is raised to 5V by the power management chip, and then passed.
  • the low dropout linear stabilizer reduces the output voltage of the power supply circuit to 3.3V to power the communication circuit, Bluetooth circuit or WiFi circuit.
  • the power indicator light is fully illuminated, and after 5 seconds (or other set duration), the power indicator light will be automatically extinguished; in the rechargeable battery During the charging process, the above-mentioned battery indicator light flashes, indicating that it is in a charging state. When the rechargeable battery reaches 4.2V, the battery indicator light is fully illuminated, indicating that the rechargeable battery voltage is full. After the charging is stopped, the battery indicator will be automatically extinguished.
  • the power indicator and the power indicator are set to facilitate the user to grasp the working status and the power status of the wireless communication device in real time.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
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Abstract

本申请涉及一种无线通信装置，包括用于建立无线链路与外部设备进行通信的通信电路，还包括蓝牙电路、WiFi电路、USB接口电路以及模式切换电路，所述蓝牙电路、WiFi电路与所述模式切换电路的第一输入输出端连接，所述USB接口电路与所述模式切换电路的第二输入输出端连接，所述模式切换电路还连接所述通信电路；所述USB接口电路的USB接口为连接状态时，所述通信电路通过所述模式切换电路与所述USB接口电路通信；所述USB接口电路的USB接口为未连接状态时，所述通信电路通过所述模式切换电路与所述蓝牙电路、WiFi电路通信。本申请的无线通信装置，具有多种通信接口，体积小，便于携带，可建立稳定、可靠、有足够通信半径的无线链路。

Description

一种无线通信装置 技术领域
本申请涉及通信设备领域，特别是涉及一种无线通信装置。
背景技术
对无人机等飞行器的操控方式包括通过遥控器进行实时的控制，和通过地面站经由无线链路转发操控平台的控制指令来控制。其中，后者不要求操控者具备遥控飞行的技能，操作简便，可以实现超视距飞行。
通过地面站对飞行器进行控制时，需要在地面站与操控平台两者之间建立稳定、可靠、有足够通信半径的无线链路。在行业应用或军用领域中，数传模块具有传输数据性能较强的优点，但体积大、功耗大，地面站需要连接专用的数传模块和大功率天线，携带不方便。在个人应用或消费类电子市场中，当使用手机作为操控平台时，一般使用手机内置的蓝牙或Wifi(例如AR.Drone)建立与无人机之间的通讯，操作简便，但通信半径过小。
发明内容
基于此，针对便携性和通信半径的矛盾问题，提供一种新型的无线通信装置。
本申请采用以下技术方案：
一种无线通信装置，包括用于建立无线链路与被控飞行器进行数据通信的通信电路，还包括蓝牙电路、WiFi电路、USB接口电路以及模式切换电路，
所述蓝牙电路、WiFi电路与所述模式切换电路的第一输入输出端连接，所述USB接口电路与所述模式切换电路的第二输入输出端连接，所述模式切换电路还连接所述通信电路；
所述USB接口电路的USB接口为连接状态时，所述通信电路通过所述模式切换电路与所述USB接口电路通信；所述USB接口电路的USB接口为未连接状态时，所述通信电路通过所述模式切换电路与所述蓝牙电路和WiFi电路通信。
优选的，还包括电源电路，所述通信电路、蓝牙电路和WiFi电路供电分别与所述电源电路连接。
优选的，所述电源电路包括电源管理芯片、与所述电源管理芯片连接的可充电电池和低压差线性稳定器；
所述USB接口电路的USB接口为连接状态时，通过USB接口对所述可充电电池进行充电。
优选的，所述可充电电池为3.3V-4.2V锂电池。
优选的，所述电源电路还包括开关按钮和指示灯，所述开关按钮和指示灯分别与所述电源管理芯片连接；
按下所述开关按钮，所述指示灯亮，弹起所述开关按钮，所述指示灯灭；
所述指示灯包括电源指示灯和电量指示灯。
优选的，所述蓝牙电路包括蓝牙模块和蓝牙天线，所述WiFi电路包括WiFi模块和WiFi天线；
所述蓝牙模块与所述蓝牙天线连接，所述WiFi模块与所述WiFi天线连接。
优选的，所述蓝牙模块、所述WiFi模块集成在同一集成芯片中，所述蓝牙天线、所述WiFi天线为与同一天线。
优选的，所述USB接口电路还包括连接所述USB接口的USB转串口电路，所述USB接口电路通过所述USB转串口电路与所述模式切换电路连接。
优选的，所述通信电路包括无线通信模块和通信天线，所述无线通信模块连接所述通信天线。
本申请上述无线通信装置，具有多种通信接口，可接收手机或地面站通过蓝牙或WiFi发送的数据，或者接收通信终端通过USB接口传输的数据，并将接收到的数据转发至飞行器(无人机)，这使得手机或地面站不必再通过有线方式连接数传模块以进行数据转发，所述无线通信装置操作方便，体积小，便于携带，可建立稳定、可靠、有足够通信半径的无线链路。
附图说明
图1为实施例一的无线通信装置示意图；
图2为实施例二的无线通信装置示意图。
具体实施方式
为使得本申请的发明目的、特征、优点能够更加的明显和易懂，下面将结合附图，对本申请实施例中的技术方案进行清楚、完整地描述。
实施例一：
图1为实施例一的无线通信装置示意图，如图1所示，本实施例的无线通信装置主要包括：通信电路、蓝牙电路、WiFi电路、USB接口电路以及模式切换电路。其中，通信电路用于建立无线链路与外部设备进行数据通信，蓝牙电路和WiFi电路主要用于与通信终端以及通信电路进行数据通信，USB接口电路用于与USB连接的通信终端以及通信电路进行数据通信。本申请中通信终端为手机或者地面站，所述外部设备主要指无人机等飞行器。
本实施例中，所述模式切换电路用于根据USB接口电路的USB接口的连接状态选择数据通信方式。通过模式切换电路来选择通信数据的传输方向，插上USB时，实现数据在通信电路与USB接口电路之间的通信；断开USB时，实现数据在通信电路与蓝牙电路和或WiFi电路之间的通信。需要说明的是，在本申请中，是通过硬件电路来实现模式切换电路，非采用计算机程序来实现。
具体的，所述蓝牙电路、WiFi电路与所述模式切换电路的第一输入输出端连接，所述USB接口电路与所述模式切换电路的第二输入输出端连接，所述模式切换电路还连接所述通信电路。
基于所述模式切换电路及其连接方式，当所述USB接口电路的USB接口为连接状态时，所述模式切换电路自动切换至第二输入输出端，所述通信电路通过所述模式切换电路与所述USB接口电路通信；当所述USB接口电路的USB接口为未连接状态时，所述模式切换电路自动切换至第一输入输出端，所述通信电路通过所述模式切换电路与所述蓝牙电路和WiFi电路通信。
进一步的，本实施例的无线通信装置还包括电源电路，所述通信电路、蓝牙电路和WiFi电路分别与所述电源电路连接。
优选的，所述蓝牙电路包括蓝牙模块和蓝牙天线，所述WiFi电路包括WiFi 模块和WiFi天线；所述蓝牙模块与所述蓝牙天线连接，所述WiFi模块与所述WiFi天线连接。本实施例中，蓝牙模块是一种集成蓝牙功能的PCBA板，WiFi模块是一种集成WiFi功能的PCBA板。
优选的，所述WiFi模块采用2.4GWiFi天线接收WiFi信号，可实现WiFi转串口TTL，全双工、透明传输工作模式，可与Android或iOS系统的WiFi模块连接，实现所述WiFi电路与手机等通信终端之间实时稳定的WiFi数据传输。
优选的，所述蓝牙模块通过2.4G蓝牙天线接收蓝牙信号，实现蓝牙转串口TTL，全双工、透明传输工作模式，可与Android系统的蓝牙2.0或iOS系统的蓝牙4.0连接，实现所述蓝牙电路与手机等通信终端之间实时稳定的蓝牙数据传输。
作为一优选实施方式，将所述蓝牙模块、所述WiFi模块可集成在同一集成芯片中，所述蓝牙天线、所述WiFi天线为与同一天线。通过集成芯片和共用天线，使得本实施例的无线通信装置体积小，重量轻，便于携带。
进一步的，所述USB接口电路包括USB接口，还包括连接所述USB接口的USB转串口电路；所述USB接口电路通过USB转串口电路与所述模式切换电路连接。
本实施例中，所述USB转串口电路用于将通过USB接口传输来的控制信号转换为串口TTL信号，实现全双工、透明传输工作模式。
进一步的，所述通信电路包括无线通信模块和通信天线，所述无线通信模块可为2.4GHz集成模块，工作频率段在2400MHz到2483.5MHz之间，通信天线采用2.4GHz天线，接收通信信号。所述无线通信模块可以实现无线转串口TTL，全双工、透明传输工作模式，且拥有唯一独立的网络ID与外部设备进行唯一配对，通信电路与飞行器等外部设备之间能够实时、稳定、长距离通信，通信距离可达1公里以上。
进一步的，本实施例中所述电源电路包括电源管理芯片、与所述电源管理芯片连接的可充电电池和低压差线性稳定器(LDO，low dropout regulator)。所述USB接口电路的USB接口为连接状态时，通过USB接口对所述可充电电池进行充电(标准输入电压为5V)。同时，通过低压差线性稳定器将可充电电池 的电压降至3.3V为通信电路、蓝牙电路以及WiFi电路供电。
通过本实施例上述无线通信装置，具有多种通信接口，可接收手机或地面站通过蓝牙或WiFi发送的数据，或者接收通信终端通过USB接口传输的数据，并将接收到的数据转发至飞行器，这使得手机或地面站不必再通过有线方式连接数传模块以进行数据转发，所述无线通信装置操作方便，体积小，便于携带，可建立稳定、可靠、有足够通信半径的无线链路；并且，通过模式切换电路，还可在蓝牙/WiFi模式、与USB接口模式之间进行自动切换。
实施例二：
图2为实施例二的无线通信装置示意图，如图2所示，本实施例与上述第二实施例的主要区别包括：所述电源电路还包括与所述电源管理芯片连接的开关按钮和指示灯。按下所述开关按钮，无线通信装置开机，所述指示灯亮；弹起所述开关按钮，无线通信装置关机，所述指示灯灭。
具体的，所述指示灯包括电源指示灯和电量指示灯。所述电源指示灯用于指示开关机状态，所述电量指示灯用于指示所述可充电电池的当前电量。
按下开关按钮后，无线通信装置开机，所述电源指示灯亮，当电源管理芯片没有检测到USB接口的连接状态时，在电源管理芯片的作用下将可充电电池的电压升至5V，再通过低压差线性稳定器将电源电路的输出电压降至3.3V为通信电路、蓝牙电路或WiFi电路供电。
另一方面，在开关按钮被按下后，若所述可充电电池满电则所述电量指示灯全亮，5s后(或者其它设定时长)电量指示灯将自动灭；在可充电电池的充电过程中，上述电量指示灯轮闪，指示处于充电状态，当可充电电池达到4.2V时，电量指示灯全亮，表示可充电电池电压充满，停止充电后，电量指示灯将自动灭。
本实施例通过设置电源指示灯和电量指示灯，方便用户实时掌握无线通信装置的工作状态和电量情况。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对专利申请范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改 进，这些都属于本申请的保护范围。因此，本专利申请的保护范围应以所附权利要求为准。

Claims (9)

  1. 一种无线通信装置，包括用于建立无线链路与外部设备进行通信的通信电路，其特征在于，还包括蓝牙电路、WiFi电路、USB接口电路以及模式切换电路，
    所述蓝牙电路、WiFi电路与所述模式切换电路的第一输入输出端连接，所述USB接口电路与所述模式切换电路的第二输入输出端连接，所述模式切换电路还连接所述通信电路；
    所述USB接口电路的USB接口为连接状态时，所述通信电路通过所述模式切换电路与所述USB接口电路通信；所述USB接口电路的USB接口为未连接状态时，所述通信电路通过所述模式切换电路与所述蓝牙电路和WiFi电路通信。
  2. 根据权利要求1所述无线通信装置，其特征在于，还包括电源电路，所述通信电路、蓝牙电路和WiFi电路供电分别与所述电源电路连接。
  3. 根据权利要求2所述无线通信装置，其特征在于，所述电源电路包括电源管理芯片、与所述电源管理芯片连接的可充电电池和低压差线性稳定器；
    所述USB接口电路的USB接口为连接状态时，通过USB接口对所述可充电电池进行充电。
  4. 根据权利要求3所述无线通信装置，其特征在于，所述可充电电池为3.3V-4.2V锂电池。
  5. 根据权利要求3所述无线通信装置，其特征在于，所述电源电路还包括开关按钮和指示灯，所述开关按钮和指示灯分别与所述电源管理芯片连接；
    按下所述开关按钮，所述指示灯亮，弹起所述开关按钮，所述指示灯灭；
    所述指示灯包括电源指示灯和电量指示灯。
  6. 根据权利要求1所述无线通信装置，其特征在于，所述蓝牙电路包括蓝牙模块和蓝牙天线，所述WiFi电路包括WiFi模块和WiFi天线；
    所述蓝牙模块与所述蓝牙天线连接，所述WiFi模块与所述WiFi天线连接。
  7. 根据权利要求6所述无线通信装置，其特征在于，所述蓝牙模块、所述WiFi模块集成在同一集成芯片中，所述蓝牙天线、所述WiFi天线为与同一天线。
  8. 根据权利要求1所述无线通信装置，其特征在于，所述USB接口电路还包括连接所述USB接口的USB转串口电路，所述USB接口电路通过所述USB 转串口电路与所述模式切换电路连接。
  9. 根据权利要求1所述无线通信装置，其特征在于，所述通信电路包括无线通信模块和通信天线，所述无线通信模块连接所述通信天线。
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