Wireless following device and unmanned aerial vehicle
By installing a signal guide on the front of the drone's wireless receiver and/or adding a signal limiter on the transmitter, the accuracy problem of the drone following system during short-distance movement or turning is solved, improving the user's operating experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-03-13
AI Technical Summary
Existing drone following systems cannot accurately follow users when they move or turn over short distances, resulting in a poor user experience.
A signal guide is installed on the front of the wireless receiver and/or a signal limiter is added to the wireless transmitter to limit the signal range and directionality, so that the drone can accurately determine the user's position changes.
It improves the turning accuracy of the drone following system and enhances the user's operating experience.
Smart Images
Figure CN223990170U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a wireless following device and a UAV. Background Technology
[0002] The use of drones is becoming increasingly widespread. Currently, many people use drones to observe the surrounding environment. When using drones, a follow system can accompany the user's movement without special operation. The follow system generally uses a wireless transmitter and a wireless receiver. The user carries the wireless transmitter, and the drone is equipped with the wireless receiver. When the user moves, the wireless receiver sends the received wireless signal to the control system. The control system tracks the strength fluctuations of the wireless signal to determine the user's position, thereby controlling the drone to follow the user and achieve drone following.
[0003] During use, it was found that if the user moves or turns within a short distance, the drone will not turn accordingly. The user needs to walk a certain distance or control the drone through the controller before it can turn. This results in a poor user experience. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a wireless following device that can accurately follow the direction of the turn and is easy to use.
[0005] Another objective of this invention is to provide a drone having the aforementioned wireless following device.
[0006] A wireless tracking device includes a wireless receiver and a wireless transmitter, and further includes a signal guide for limiting the signal reception range of the wireless receiver. The signal guide is disposed on the front side of the wireless receiver and has a signal guiding channel. The inner end opening of the signal guiding channel faces the wireless receiver, and the outer end opening of the signal guiding channel faces outward. Or / and, the transmitting end of the wireless transmitter is connected to a signal limiting member for limiting the wireless signal transmission range.
[0007] Furthermore, the wireless following device includes at least two wireless receivers and at least two corresponding signal guides.
[0008] Furthermore, the outer end opening of the signal guide is horn-shaped or inverted cone-shaped.
[0009] Furthermore, the wireless receiver is an infrared receiver.
[0010] Furthermore, the wireless transmitter is an infrared transmitter, and the signal limiting component is a sleeve fitted over the transmitting end. Preferably, the upper opening of the sleeve is funnel-shaped or cone-shaped. More preferably, the sleeve is black.
[0011] A drone including the aforementioned wireless following device.
[0012] Furthermore, the drone includes a fuselage, which includes a shell. The wireless receiver and signal guide are disposed inside the shell. The shell has a through hole that matches the outer opening of the signal guide channel. The outer openings of two adjacent signal guide channels are set at an angle along their length directions.
[0013] Furthermore, the included angle is 10-75 degrees; preferably 20, 30, or 45 degrees.
[0014] Furthermore, when there are two or more signal guides, there are connecting pieces between adjacent signal guides.
[0015] Preferably, an auxiliary fixing member is provided inside the housing, and the auxiliary fixing member has a receiving hole for accommodating the signal receiver, with the inner end of the signal guiding channel facing the receiving hole or extending into the receiving hole.
[0016] Preferably, the connector is provided with an extension rod, and the auxiliary fixing member is provided with a plug hole that mates with the extension rod, and the extension rod is inserted into the plug hole.
[0017] The beneficial effects of this utility model are as follows: By adding signal guides and signal limiting components to the existing technology, this utility model enables the UAV following system to accurately obtain the position changes of the wireless transmitter, so as to facilitate the adjustment of the UAV's attitude and make it easy to use. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the drone in this embodiment.
[0019] Figure 2 A schematic diagram of a structure for opening the shell of a drone.
[0020] Figure 3 This is a schematic diagram of a signal guide, a wireless receiver, and an auxiliary fixing component.
[0021] Figure 4 for Figure 3 Another perspective structural diagram, where angle A is the angle between two adjacent signal guiding channels.
[0022] Figure 5 for Figure 3 A type of exploded diagram.
[0023] Figure 6This is a schematic diagram of the structure of the wireless transmitter in this embodiment.
[0024] Figure 7 A schematic diagram showing a partial opening of the housing of a wireless transmitter.
[0025] Figure label:
[0026] 1—Fuse; 3—Signal guide; 4—Connector; 5—Auxiliary fixing component; 6—Wireless receiver; 7—Wireless transmitter;
[0027] 11 – Outer shell; 12 – Through hole; 31 – Signal guiding channel; 311 – Inner end opening; 312 – Outer end opening; 71 – Outer shell; 72 – Infrared diode; 73 – Signal limiting component; 41 – Extension rod; 51 – Accommodation hole; 52 – Insertion hole. Detailed Implementation
[0028] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0029] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0030] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying 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 this application, "multiple" means two or more, unless otherwise explicitly specified.
[0032] The present invention will now be described in detail with reference to the accompanying drawings. Figures 1 to 7 As shown.
[0033] Example 1: See Figure 1 , Figure 2 , Figure 3 as well as Figure 6 , Figure 7 A wireless tracking device includes a wireless receiver 6 and a wireless transmitter 7, and further includes a signal guide 3 for limiting the signal reception range of the wireless receiver 6. The signal guide 3 is disposed on the front side of the wireless receiver 6 and has a signal guiding channel 31. The inner opening 311 of the signal guiding channel 31 faces the wireless receiver 6, and the outer opening 312 of the signal guiding channel 31 faces outward. Alternatively, the transmitting end of the wireless transmitter 7 is connected to a signal limiting member 73 for limiting the wireless signal transmission range.
[0034] This technical solution adds a signal guide 3 and / or a signal limiting component 73 compared to existing technologies; wherein the signal guide 3 limits the signal receiving range. In specific implementation, the signal guide 3 and the wireless receiver 6 are mounted together on the drone, see [reference]. Figure 2 The outer opening 312 of the signal guiding channel 31 of the signal guide 3 faces forward, and the operator carries the wireless transmitter 7. After the drone takes off, the operator is positioned below and in front of the drone, within the extended area of the outer opening 312 of the signal guiding channel 31. When the operator moves or turns a short distance, the signal strength is more noticeably affected due to the relatively small extended area. In specific settings, the extended area can be set to a radius of 0.5-1 meter around the operator. When the wireless transmitter 7 carried by the operator moves more than 0.5-1 meters, the signal strength received by the wireless signal receiver will change significantly. It is understood that the extended area is related to the drone's ascent height, which can be set at 2-5 meters, corresponding to an extended area with a radius of 0.5-2.5 meters. The operator can hold the wireless transmitter and move it approximately 0.3-0.6 meters with a small step or short turn, which is sufficient to affect the signal strength received by the wireless signal receiver.
[0035] Therefore, by adding a signal guide 3 to the front of the wireless receiver 6 to limit signal reception, the strength of the received signal can be improved, thereby assisting the UAV control system in accurately judging the operator's direction and improving the user's sensory experience.
[0036] Currently, the wireless transmitter 7 has a very large signal transmission range, whether it's Bluetooth, infrared, or WiFi. When in use, if the operator carries the wireless transmitter 7 and walks or turns within the aforementioned extended area, the signal strength received by the drone's receiver doesn't change much, and the drone generally doesn't make corresponding movements, such as turning. To further improve the signal strength perception of the wireless receiver 6, this embodiment improves the existing wireless transmitter 7 by adding a signal limiting component 73. After setting the signal limiting component 73, the signal emitted by the wireless transmitter 7 has higher directionality, such as sending the signal outward in a cone shape with a 30-degree angle. This makes the signal reception range of the wireless transmitter 7 very small at the drone's altitude. Therefore, even a small movement of the wireless transmitter 7, such as 0.5-1 meter, will affect the signal strength received by the drone's wireless receiver 6, immediately allowing the control system to determine the direction and position of movement and control the drone to make corresponding attitude adjustments or movements.
[0037] By limiting the receiving range of the wireless receiver 6 by the signal guide 3 and limiting the sending range of the wireless transmitter 7 by the signal limiter 73, the strength of the signal received by the wireless receiver 6 can be improved. Therefore, the settings can be configured as needed, such as setting only the signal guide 3 or the signal limiter 73, or setting both the signal guide 3 and the signal limiter 73.
[0038] See Figure 2 , Figure 3 The wireless following device includes at least two wireless receivers 6 and at least two corresponding signal guides 3.
[0039] When setting up two or more wireless receivers 6 and corresponding signal guides 3, the receiving area range of different signal guides 3 is different. 1. If the areas do not overlap, when the operator moves or turns, causing the wireless transmitter 7 to move from one area to another, or when the signal strength changes within an area, the drone's control system will immediately adjust its attitude upon sensing this. 2. If the areas overlap, the overlapping area is generally set in the area where the wireless transmitter 7 is located, meaning the drone will follow where at least two wireless receivers 6 can receive the signal. The overlapping range will be set very small. In this case, when the operator moves or turns, causing the wireless transmitter 7 to move from the overlapping area to a separate extended area, the drone's control system will immediately adjust its attitude upon sensing this. During adjustment, 90-degree and 180-degree attitude adjustments are generally performed; other angles require manual operation.
[0040] Additionally, it's understandable that in the specific setup, the two wireless receivers (6) can be positioned on the left and right sides, i.e., on either side of the walking direction, with the two extended areas also corresponding to the sides of the walking direction, making left and right turns very sensitive. Forward and backward turns can be adjusted by sensing the movement of the signal source. Currently, this primarily focuses on adjusting the left and right turns of the drone.
[0041] See Figure 3 , Figure 4 as well as Figure 5 The outer end opening 312 of the signal guide 3 is horn-shaped or inverted cone-shaped.
[0042] Since current drone toys are relatively small, while the extended area is much larger than the projected area of the drone toy, in order to obtain a larger extended area, the outer end opening 312 of the signal guide 3 needs to be set in an enlarged hole shape. In this embodiment, it is set in a trumpet shape or an inverted cone shape.
[0043] Secondly, the wireless receiver 6 is an infrared receiver.
[0044] The wireless receiver 6 is restricted to an infrared receiver, and the corresponding wireless transmitter 7 is an infrared transmitter; the direction of the infrared signal is better than other wireless signals, and it is also easier to adjust.
[0045] See Figure 7 The wireless transmitter 7 is an infrared transmitter, and the signal limiting member 73 is a sleeve that is fitted onto the transmitting end. Preferably, the upper opening of the sleeve is funnel-shaped or cone-shaped. More preferably, the sleeve is black.
[0046] The overall structure is simple by using a sleeve as a signal limiting element 73 for the infrared signal; secondly, the transmission angle of the wireless signal is limited by the upper opening of the sleeve; thirdly, to avoid leakage of the infrared signal due to the use of transparent or semi-transparent materials, the sleeve can be made of a dark color, such as black. The infrared transmitter includes a housing 71, inside which is an infrared circuit and an infrared diode 72. The sleeve is fitted over the infrared diode 72, which is the transmitting end.
[0047] Example 2: A drone including the wireless following device of Example 1.
[0048] See Figure 1 , Figure 2 The drone includes a fuselage 1, which includes a shell 11. The wireless receiver 6 and the signal guide are disposed inside the shell 11. The shell 11 has a through hole 12 that matches the outer end opening 312 of the signal guide channel 31. The outer end openings 312 of two adjacent signal guide channels 31 are set at an angle along their length directions.
[0049] When using one wireless receiver 6, the outer opening 312 of the signal guiding channel 31 can be vertically, obliquely, or horizontally positioned. Preferably, the outer opening 312 is located in the middle of the lower end of the housing 11 or at the front end of the housing 11. When using two or more wireless receivers 6, it is necessary to control the size of the intersecting extension area. If it is partially or entirely vertically downward, the intersecting extension area is very small. It can be partially or entirely vertically downward or horizontally positioned, but the two adjacent outer openings 312 are set at an angle to reduce or avoid the intersection area. In this embodiment, two signal receivers and a signal guide 3 are used. The outer openings 312 of the two signal guiding channels 31 are obliquely positioned, and the two adjacent outer openings 312 are set at an angle. In use, the intersection area of the two extension areas is very small, or the interval between the two extension areas is very small, such as within 20cm.
[0050] See Figure 4 The included angle A is 10-75 degrees; preferably 20, 30, or 45 degrees.
[0051] The included angle of the outer port can be determined according to the drone's predetermined flight altitude and the number of wireless receivers 6. If the number of wireless receivers 6 is small, it can be set to 10-30 degrees. If the number is large, it can be set to 30-75 degrees.
[0052] See Figures 3 to 5 When there are two or more signal guides 3, a connector 4 connects adjacent signal guides 3.
[0053] The signal guide 3 is connected as a single unit by a connector 4, facilitating installation within the drone's outer shell 11. Furthermore, to facilitate the connection of the signal guide 3 and the signal receiver, an auxiliary fixing member 5 is provided within the outer shell 11. This auxiliary fixing member 5 has a receiving hole 51 for accommodating the signal receiver, with the inner end of the signal guide channel 31 facing or extending into the receiving hole 51. Preferably, to further reinforce the connection, the connector 4 has an extension rod 41, and the auxiliary fixing member has a insertion hole 52 that mates with the extension rod 41, allowing the extension rod 41 to be inserted into the insertion hole 52.
[0054] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of this utility model. The content of this specification should not be construed as a limitation of this utility model.
Claims
1. A wireless following device comprising a wireless receiver and a wireless transmitter, characterized in that: a signal guide for limiting the range of signals received by the wireless receiver is further included, the signal guide is arranged on the front side of the wireless receiver, the signal guide is provided with a signal guide channel, the inner end of the signal guide channel is open towards the wireless receiver, and the outer end of the signal guide channel is open towards the outside; or / and, a signal limiting member for limiting the range of wireless signal transmission is connected to the transmitting end of the wireless transmitter.
2. The wireless follower device of claim 1, wherein: The wireless following device comprises at least two wireless receivers and at least two corresponding signal guides.
3. The wireless following device according to claim 1 or 2, characterized in that: The outer end of the signal guide is trumpet-shaped or inverted cone-shaped.
4. The wireless follower device of claim 1, wherein: The wireless receiver is an infrared receiver, the wireless transmitter is an infrared transmitter, and the signal limiting member is a sleeve that is sleeved on the transmitting end.
5. A drone, characterized by: The wireless following device of claim 1 or 3 or 4 is included.
6. A drone, characterized by: The wireless following device of claim 2 is included.
7. The drone of claim 6, wherein: The unmanned aerial vehicle comprises a body, and the body comprises a shell, the wireless receiver and the signal guide are arranged in the shell, the shell is provided with a through hole matched with the outer end of the signal guide channel, and the outer ends of the signal guide channels of adjacent signal guides are arranged at an angle in the length direction.
8. The drone of claim 7, wherein: The angle is 10-75 degrees.
9. The drone of claim 7 or 8, wherein: An auxiliary fixing member is arranged in the shell, the auxiliary fixing member is provided with a receiving hole for accommodating the signal receiver, and the inner end of the signal guide channel is directed towards or extends into the receiving hole.
10. The drone of claim 9, wherein: When the number of signal guides is more than two, a connecting member is connected between adjacent signal guides, the connecting member is provided with an extension rod, the auxiliary fixing member is provided with a plug hole matched with the extension rod, and the extension rod is plugged into the plug hole.