WO2019119318A1

WO2019119318A1 - Remote controller

Info

Publication number: WO2019119318A1
Application number: PCT/CN2017/117569
Authority: WO
Inventors: 李栋; 李日照
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2017-12-20
Filing date: 2017-12-20
Publication date: 2019-06-27
Also published as: CN110383193A

Abstract

A remote controller (1), comprising: a remote controller main body (10), the remote controller main body being provided with an accommodating space (100), the accommodating space being used for accommodating a wireless network card (14); and a software defined radio (SDR) antenna (12) and a Wi-Fi module provided on the remote controller main body. The spacing between the SDR antenna (12) and the wireless network card (14) is a preset value, the preset value enabling the isolation between the working antenna and the wireless network card to reach a preset threshold. The remote controller can avoid the mutual interference between the working antenna and the wireless network card.

Description

remote control

Technical field

The present invention relates to a remote controller, and more particularly to a remote controller that can be coupled to a wireless network card.

Background technique

In the existing remote control, in order to connect to the network, a WIFI module is usually added to the remote controller, so that the remote controller can access the network when there is a wireless network signal, but the problem is that when the remote controller is in no wireless The area of the network signal can not be connected to the network; on the other hand, some remote controllers can also use the wireless network card to access the network, but the existing remote control only reserves the wireless network card interface on the remote control, and will be external when used. The wireless network card is connected to the remote controller through the interface, which not only increases the volume of the remote controller, but also has the problem that the antenna of the wireless network card and the remote controller interfere with each other.

Summary of the invention

In view of this, it is necessary to provide a remote controller capable of solving the above problems, so that the remote controller can not only easily access the network, but also has a simple structure and weak signal interference.

The invention provides a remote controller, comprising:

a remote control main body, the remote control main body is provided with a remote control lever, wherein the remote control lever is used for controlling the flight attitude of the drone, and the remote control main body is further provided with an accommodating space, and the accommodating space is used for accommodating Wireless network card;

a software-defined radio SDR antenna and a WIFI module disposed on the remote controller main body, the SDR antenna being disposed outside the remote control main body, the WIFI module being disposed inside the remote control main body, and the SDR antenna being used Receiving image data acquired by the drone and transmitting route information and a control signal of the remote controller to the drone, the WIFI module is configured to connect the remote controller to a wireless network;

Wherein, one of the accommodating space and the SDR antenna is disposed at the bottom of the body, and the other is disposed at the top of the body; and a distance between the SDR antenna and the wireless network card is greater than or equal to a pre- A value is set, the preset value is such that the isolation between the SDR antenna and the wireless network card is greater than or equal to a predetermined threshold.

Further, one of the accommodating space and one of the WIFI modules is disposed at the bottom of the main body, and the other is disposed at the top of the main body; and a distance between the WIFI module and the wireless network card is greater than or equal to And a preset value that causes the isolation between the WIFI module and the wireless network card to be greater than or equal to a predetermined threshold.

Further, the remote controller is further provided with a dial wheel for adjusting the spray dose of the drone.

Further, the remote controller is further provided with a user interface for interacting with the user, and the user interface is used for adjusting the spraying speed of the drone.

Further, the preset value is a quarter of a wavelength corresponding to a working center frequency of the working antenna.

Further, the WIFI module is disposed adjacent to the SDR antenna.

Further, the predetermined threshold is 30-33 dB.

Further, an anti-electromagnetic interference material is disposed on a side of the accommodating space adjacent to the working antenna.

Further, an interface is disposed in the accommodating space, and the interface is used for communicative coupling of the remote controller with the wireless network card.

Further, the interface is selected from the group consisting of type-C, micro-USB, and USB.

Further, a wireless connection module is disposed on the main body for wirelessly coupling with the wireless network card.

Further, the wireless connection module is selected from the group consisting of Bluetooth and WIFI.

Further, the wireless network card is a mobile communication network card or a wireless local area network card.

Further, the accommodating space is a receiving slot formed on the main body, and the shape of the receiving slot is adapted to the shape of the wireless network card, and the receiving slot is sealed by a protective cover.

By accommodating the wireless network card inside the remote controller, the remote controller of the invention can effectively avoid the problem that the remote controller is oversized due to the external wireless network card, and is convenient for the user to hold; and at the same time, isolate the wireless network card from the antenna of the remote controller. The open setting can effectively avoid the mutual interference between the working antenna and the wireless network card, so that the wireless network card and the antenna of the remote controller can work normally.

DRAWINGS

1 is a perspective view of a remote controller according to an embodiment of the present invention.

2 is a perspective view of another perspective view of the remote controller according to an embodiment of the present invention.

Fig. 3 is an exploded structural view showing a remote controller according to an embodiment of the present invention.

4 is a side view showing the isolation between an antenna of a wireless network card and an SDR antenna according to an embodiment of the present invention.

FIG. 5 is a side view showing isolation between an antenna of a wireless network card and a WIFI module according to an embodiment of the present invention.

FIG. 6 is a diagram showing actual test performance of an OTA (Over The Air) for a 4G network card according to an embodiment of the present invention.

Main component symbol description

Remote control 1

Remote control main body 10

Upper housing 100

Lower housing 102

Front side wall 103

Rear side wall 104

Left side wall 105

Right side wall 106

Housing space 107

Protective cover 108

Communication module 12

WIFI module 120

SDR antenna 122

Wireless network card 14

Joystick 16

Dial 17

Button 18

Battery compartment 19

The invention will be further illustrated by the following detailed description in conjunction with the accompanying drawings.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or the component can be present. When a component is considered to "connect" another component, it can be directly connected to another component or possibly a central component. When a component is considered to be "set to" another component, it can be placed directly on another component or possibly with a centered component. The terms "vertical," "horizontal," "left," "right," and the like, as used herein, are for illustrative purposes only.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and/or" used herein includes any and all combinations of one or more of the associated listed items.

The above described objects, features and advantages of the present invention will become more apparent from the aspects of the appended claims. The embodiments of the present invention are described in detail in conjunction with the accompanying drawings. When the embodiments of the present invention are described in detail, for the convenience of description, the cross-sectional views showing the structure of the device may not be partially enlarged according to the general proportion, and the schematic diagram is only an example, and The scope of protection of the invention should be limited.

The remote controller provided by the embodiment of the present invention can be used for remotely controlling an electronic device, and the remote controller can control the electronic device to perform a predetermined operation by transmitting a remote control command. In some embodiments, the remote control can also receive operational status information from the electronic device from the electronic device. The electronic device may be a home appliance such as a television, or may be a movable object such as a car, a ship, an aircraft, or the like.

In an embodiment, a remote control is provided for remotely controlling a movable object, such as a drone. The remote controller can control the operation of the drone by transmitting a remote control command. In some embodiments, the remote control can be used to control the drone and/or the carrier, load disposed thereon. For example, the remote control is used to control the position and/or orientation of the aircraft, carrier and/or load relative to a fixed reference frame and/or relative to each other. In some embodiments, the remote control can be used to control individual components of the drone, carrier, and/or load, such as a drive assembly of the carrier, a sensor of the load, or a transmitter of the load .

The remote control can include a user interface such as a keyboard, mouse, joystick, touch screen or display. Any suitable user input can be used to interact with the user, such as manual input commands, sound control, gesture control, or orientation control (eg, by moving, positioning, or tilting the remote). In some embodiments, the remote control can be handheld or wearable. Alternatively, the remote control can be placed or fixed on a support platform.

The remote control can include a wireless communication device for communicating with the controlled device. The wireless communication device can employ one or more of a local area network (LAN), a wide area network (WAN), an infrared, a radio frequency, a WIFI, a point-to-point (P2P) network, a telecommunications network, a cloud communication, and other similar communication networks. Alternatively, a repeater station such as a tower, satellite or mobile workstation can be employed. Wireless communication can be distance-based or distance-independent. In some embodiments, the communication needs to be visible or not.

The remote control can include a suitable display unit for viewing information from the controlled device. For example, a remote control for controlling a drone can be used to display the position of the drone, translation rate, translational acceleration, steering, angular velocity, angular acceleration, or any suitable combination of information. In some embodiments, the remote control can display information provided by the load, such as information provided by a load (eg, an image recorded by a camera or other image acquisition device).

Referring to FIG. 1 , FIG. 2 and FIG. 3 , a remote controller 1 according to an embodiment of the present invention includes a remote controller body 10 and a communication module 12 disposed on the remote controller body 10 .

The remote controller body 10 includes an upper housing 100, a lower housing 102, and a control circuit (eg, a control circuit board or control) disposed in a cavity formed between the upper housing 100 and the lower housing 102 chip). In this embodiment, the control circuit may include a picture transmission receiving module (eg, a wireless network receiver) for receiving image information transmitted by the imaging device disposed on the remote control device (eg, the drone). The image information may be still image information (eg, a picture) or dynamic image information (eg, a video).

Optionally, the upper housing 100 generally includes a top wall and a side wall attached to the periphery of the top wall. The lower housing 102 generally includes a bottom wall and a side wall attached to the periphery of the bottom wall. The housing 100 includes a top wall and a side wall. By arranging the upper casing 100 and the lower casing 102 as above, when the upper casing 100 and the lower casing 102 are fastened together, the side walls of the upper casing 100 and the side walls of the lower casing 102 are in contact with each other, thereby The front side wall 103, the rear side wall 104, the left side wall 105, and the right side wall 106 of the body 10 are formed. It can be understood that the top wall and the side wall of the upper casing 100 may be integrally formed or two separate components are connected. Similarly, the bottom wall and the side wall of the lower casing 102 may also be similar. Settings.

The communication module 12 can include a WIFI module 120 and a Software Defined Radio (SDR) antenna 122. The communication module 12 is communicatively coupled to the control circuit for transmitting control signals of the control circuit to the controlled device (eg, a drone). It can be understood that the communication module further includes an SDR module (not shown) corresponding to the SDR antenna 122, and the SDR module can be disposed on the control circuit. The WIFI module 120 is disposed inside the remote control main body 10, and the SDR antenna 122 is disposed outside the remote control main body (for example, outside the front side wall 103 shown in the figure), and the WIFI module 120 is adjacent to the WIFI module 120. The SDR antenna 122 is set. The SDR antenna 122 is configured to receive image data acquired by the drone and transmit route information and a control signal of the remote controller to the drone, and the WIFI module 120 is configured to use the remote controller 1 Access to the wireless network. In some embodiments, the WIFI module 120 can also be used to communicate with other electronic devices, for example, receiving information from other electronic devices through the WIFI module 120 to generate control commands to control the remotely controlled device.

The remote control 1 may include a plurality of user interfaces such as an operating lever 16, a dial 17, and a button 18. It will be appreciated that the remote control 1 may also include any other suitable user interface, such as a touch screen, buttons, and the like. The user interface is configured to receive a user input to generate a control command to control the controlled electronic device. For example, in one embodiment, the button 18 is used to control the on/off operation of the remote control 1. The operating lever 16 is used to control the flight attitude of the drone, such as takeoff, landing, hovering, and in the air with respect to three translational degrees of freedom and three rotational degrees of freedom of motion, speed, and the like. The dial 17 can control the operation of the load on the drone, for example, the amount of the pesticide spray on the agricultural drone can be controlled. Alternatively, a pointing device such as a status indicator light or a power indicator light may be provided on the remote controller main body 10.

In some embodiments, if the remote controller is used as a remote control terminal of an agricultural drone, the remote controller 1 may further be provided with a touch display screen or an external display device to display the route of the unmanned aerial vehicle, current The location and orientation, some status data during the execution of the mission, such as the area that has been sprayed, the height of the crop, the speed of flight, and the speed of the spray. The remote controller 1 can further control the spraying operation by a button, a dial or an operating lever, or provide a user interface such as other function buttons to facilitate receiving user manipulation to further control the spraying operation of the drone.

A power supply compartment 19 is fixed to the bottom wall of the lower casing 102, and a power source is mounted in the power supply compartment 19. Alternatively, the power supply compartment 19 may be located in a cavity enclosed by the upper casing 100 and the lower casing 102. For example, the power supply compartment 19 is fastened to the upper casing 100 and the lower casing 102 by the bottom wall. The formed cavity is recessed, or the power supply compartment 19 may be protruded out of the bottom wall, for example, a separate power supply compartment 19 is bolted to the bottom wall. Preferably, the power source installed in the power supply bay 19 is a rechargeable power source, such as a lithium battery power source. If a rechargeable power source is installed in the power supply bay 19, a charging port may be provided on the upper casing 100 or the lower casing 102 to charge the rechargeable power source. In addition, a support frame 13 is fixed at a position close to the front side wall 103, so that the remote controller 1 can be supported on a table top or other objects through the support frame 13; or alternatively, a mobile device can be selectively installed. Display device mounting bracket.

An accommodating space 107 is further disposed on the remote controller body 10, and the accommodating space 107 is used to set the wireless network card 14.

The spacing between the SDR antenna 122 and/or the WIFI module 120 and the wireless network card 14 is a preset value, and the preset value is such that the SDR antenna 122 and/or the WIFI module 120 and the wireless The isolation of the network card 14 reaches a predetermined threshold so that mutual interference between the communication module 12 and the wireless network card 14 can be avoided or reduced. In an embodiment, the predetermined threshold is 30-33 dB, and when the isolation is greater than or equal to a predetermined threshold, mutual interference between the communication module 12 and the wireless network card 14 is compared with expectations.

In some embodiments, the predetermined value is greater than a quarter wavelength of a working center frequency of the working antenna.

In order to make the spacing between the communication module 12 and the wireless network card 14 as large as possible, the accommodation space 107 may be disposed at one side of the remote controller main body 10, and the communication module 12 is disposed at the The remote controller main body 10 is away from the other side of the accommodating space 109. For example, the accommodating space 107 is disposed at a bottom (rear side wall) of the remote controller main body 10, and the communication module 12 is disposed at a top (front side wall) of the remote controller main body 10; or the accommodating A space 107 is provided at the top of the remote control main body 10, and the communication module 12 is disposed at the bottom of the remote control main body 10. In some embodiments, one of the SDR antenna 122 and the accommodating space 107 (the wireless network card 14) is disposed at the top of the remote control main body 10 (outside the front side wall), and the other is disposed at The bottom of the remote control main body 10. In some embodiments, one of the WIFI module 120 and the accommodating space 107 (the wireless network card 14) is disposed at the top of the remote control main body 10 (outside the front side wall), and the other is disposed at The bottom of the remote control main body 10.

In some embodiments, in order to further improve the anti-interference performance, the accommodating space 107 may also be provided with an anti-electromagnetic interference material on a side close to the communication module 12.

The wireless network card 14 can be a mobile communication network card or a wireless local area network card. In some embodiments, the wireless network card 14 can be a commercially available universal wireless network card (eg, a 4G network card). The mobile communication network card may be a mobile communication network card such as a 3G, 4G or 5G network card. The wireless network card 14 can be communicatively coupled to the body of the remote control 10 in any suitable manner. The communication connection manner may be wireless or wired. The wireless mode can be Bluetooth, WIFI, and the like. Corresponding wireless connection modules are respectively disposed on the remote control main body 10 and the wireless network card 14 to implement wireless communication connection between the remote control main body 10 and the wireless network card 14. The wired mode can be a universal serial bus (USB), a micro-USB, a High-Definition Multimedia Interface (HDMI) interface, a Video Graphics Array (VGA) interface, and a controller area network. (Controller area network, CAN), serial and/or other standard network connections, Inter-Integrated Circuit (I2C) bus, type-C, etc. A communication interface may be disposed in the accommodating space 107, and the communication interface is used for communication coupling between the remote controller and the wireless network card. For example, the communication interface may be a USB interface, a USB slot may be disposed in the accommodating space 107, and a USB plug may be disposed on the wireless network card 14, and the USB plug cooperates with the USB slot to implement the The wireless network card 14 is communicatively coupled to the remote control body 10.

In the embodiment shown in the figure, the accommodating space 107 is a receiving slot formed on the remote controller main body 10. The shape of the receiving slot is adapted to the shape of the wireless network card 14, and the receiving slot passes. The protective cover 108 is sealed. The protective cover 108 and the housing of the remote control main body 10 may be fixedly connected by a fixing device such as a screw, or may be engaged and fixed by a snap or the like. The wireless network card 14 is fixed in the accommodating space 107 by the protective cover 108, so that the wireless network card 14 can be protected, for example, the wireless network card 14 can be protected when the remote controller 1 accidentally falls.

It is to be understood that, in some embodiments, a fixing member may be further disposed in the accommodating space 107 to further fix the wireless network card 14 , for example, a fastening component may be disposed on an inner wall of the accommodating space 107 to The wireless network card 14 is clamped when the wireless network card 14 is received in the accommodating space 107.

It can be understood that, in some embodiments, the accommodating space 107 can also be a receiving portion that is detachably protruded from one end of the remote controller main body 10. For example, the accommodating shape in the accommodating portion is adapted to the wireless network card 14 to accommodate the wireless network card 14, and the accommodating portion can be detachably fixed to the remote control by screws or a buckle or the like. On the main body 10.

Please refer to FIG. 4, which is a test diagram of isolation between the antenna of the wireless network card 14 and the SDR antenna 122 according to an embodiment of the present invention. Curve 41 is the return loss curve of the SDR antenna 122 of the remote controller, curve 42 is the return loss curve of the antenna of the wireless network card 14, and curve 43 is the transmission coefficient curve of the antenna of the SDR antenna 122 and the wireless network card 14, and the transmission coefficient is positive. For isolation, it can be seen that the isolation of the two antennas is greater than 30 dB, so that mutual interference between the two antennas can be avoided or reduced.

Please refer to FIG. 5, which is a side view showing the isolation between the antenna of the wireless network card 14 and the WIFI module 120 according to an embodiment of the present invention. The curve 51 is the return loss curve of the WIFI module 120 of the remote controller, the curve 52 is the return loss curve of the antenna of the wireless network card 14, and the curve 53 is the transmission coefficient curve of the antenna of the WIFI module 120 and the wireless network card 14, and the transmission coefficient is positive. For isolation, it can be seen that the isolation of the two antennas is greater than 33 dB, so that mutual interference between the two antennas can be avoided or reduced.

The 4G network card is taken as an example to test its radiation performance. FIG. 6 is a diagram showing an actual test performance of an OTA (Over The Air) for a 4G network card according to an embodiment of the present invention, wherein TRP (total radiated power) is a total radiated power of the 4G network card, and reflects a 4G network card. The total isotropic sensitivity of the 4G network card reflects the receiving sensitivity of the 4G network card. It can be seen that the 4G NIC has good transmission and reception performance in each frequency band.

In addition, those skilled in the art can make various other changes and modifications in accordance with the technical concept of the present invention, and all such changes and modifications are within the scope of the claims of the present invention.

Claims

A remote controller, wherein the remote controller comprises:

a remote control main body, the remote control main body is provided with a remote control lever, wherein the remote control lever is used for controlling the flight attitude of the drone, and the remote control main body is further provided with an accommodating space, and the accommodating space is used for accommodating Wireless network card;

a software-defined radio SDR antenna and a WIFI module disposed on the remote controller main body, the SDR antenna being disposed outside the remote control main body, the WIFI module being disposed inside the remote control main body, and the SDR antenna being used Receiving image data acquired by the drone and transmitting route information and a control signal of the remote controller to the drone, the WIFI module is configured to connect the remote controller to a wireless network;

Wherein, one of the accommodating space and the SDR antenna is disposed at the bottom of the body, and the other is disposed at the top of the body; and a distance between the SDR antenna and the wireless network card is greater than or equal to a pre- A value is set, the preset value is such that the isolation between the SDR antenna and the wireless network card is greater than or equal to a predetermined threshold.
The remote controller according to claim 1, wherein one of the accommodation space and one of the WIFI modules is disposed at a bottom of the main body, and the other is disposed at a top of the main body; and the WIFI module is The distance between the wireless network cards is greater than or equal to a preset value, and the preset value is such that the isolation between the WIFI module and the wireless network card is greater than or equal to a predetermined threshold.
The remote controller according to claim 1, wherein the remote controller is further provided with a dial for adjusting the spray amount of the drone.
The remote controller according to claim 1, wherein said remote controller is further provided with a user interface for interacting with a user, said user interface for adjusting a spraying speed of said drone.
The remote controller according to claim 1, wherein the preset value is a quarter of a wavelength corresponding to a working center frequency of the working antenna.
The remote controller of claim 1 wherein said WIFI module is disposed adjacent said SDR antenna.
The remote controller of claim 1 wherein said predetermined threshold is 30-33 dB.
The remote controller according to claim 1, wherein the accommodating space is provided with an electromagnetic interference preventing material on a side close to the working antenna.
The remote controller according to claim 1, wherein an interface is provided in the accommodating space, and the interface is used for communicative coupling of the remote controller with the wireless network card.
The remote controller according to claim 9, wherein said interface is selected from the group consisting of type-C, micro-USB, and USB.
The remote controller according to claim 1, wherein the main body is provided with a wireless connection module for wirelessly coupling with the wireless network card.
The remote controller according to claim 11, wherein the wireless connection module is selected from the group consisting of Bluetooth and WIFI.
The remote controller according to claim 1, wherein said wireless network card is a mobile communication network card or a wireless local area network card.
The remote controller according to claim 1, wherein the accommodating space is a receiving slot formed on the main body, and the shape of the receiving slot is adapted to the shape of the wireless network card, and the receiving slot is protected by The lid is sealed.