CN110459078A - A computer-controlled teaching device - Google Patents
A computer-controlled teaching device Download PDFInfo
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- CN110459078A CN110459078A CN201910898658.1A CN201910898658A CN110459078A CN 110459078 A CN110459078 A CN 110459078A CN 201910898658 A CN201910898658 A CN 201910898658A CN 110459078 A CN110459078 A CN 110459078A
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- turntable
- electric telescopic
- telescopic rod
- camera
- table body
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- 238000009434 installation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/08—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a vertical axis, e.g. panoramic heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Projection Apparatus (AREA)
Abstract
本发明公开了一种计算机控制教学设备，包括桌体，桌体上方设有显示机构、投影机构和摄像机构，显示机构包括第一支撑盘、第一电动伸缩杆、第一转盘、第一旋转电机、第一角度调节机构和主显示屏，投影机构包括第二支撑盘、第二电动伸缩杆、第二转盘、第二旋转电机、第二角度调节机构和投影仪，摄像机构包括横梁、摄像头和第四电动伸缩杆，桌体的上端面设有触摸显示屏和书写板，且书写板设于摄像头的正下方。本发明设计合理，结构简单，智能化控制，操作方便，功能齐全，灵活性高，满足现有多媒体教学的需要，具有推广价值。
The invention discloses a computer-controlled teaching device, which comprises a table body. A display mechanism, a projection mechanism and a camera mechanism are arranged on the top of the table body. The motor, the first angle adjustment mechanism and the main display screen, the projection mechanism includes a second support plate, the second electric telescopic rod, the second turntable, the second rotating motor, the second angle adjustment mechanism and a projector, and the camera mechanism includes a beam, a camera and the fourth electric telescopic rod, the upper end surface of the table body is provided with a touch display screen and a writing board, and the writing board is located directly below the camera. The invention has reasonable design, simple structure, intelligent control, convenient operation, complete functions and high flexibility, meets the needs of existing multimedia teaching, and has popularization value.
Description
技术领域technical field
本发明属于教学设备技术领域，具体涉及一种计算机控制教学设备。The invention belongs to the technical field of teaching equipment, and in particular relates to a computer-controlled teaching equipment.
背景技术Background technique
随着时代的发展，科技的进步，计算机、投影仪等多媒体教学设备逐渐取代了传统的黑板，粉笔等教学工具，在教学、培训的应用中能够提高教学的生动性及其效率，多媒体教学是指在教学过程中，根据教学目标和教学对象的特点，通过教学设计，合理选择和运用现代教学媒体，并与传统教学手段有机组合，共同参与教学全过程，以多种媒体信息作用于学生，形成合理的教学过程结构，达到最优化的教学效果。With the development of the times and the advancement of science and technology, multimedia teaching equipment such as computers and projectors have gradually replaced traditional teaching tools such as blackboards and chalk, which can improve the vividness and efficiency of teaching in the application of teaching and training. Multimedia teaching is It means that in the teaching process, according to the teaching objectives and the characteristics of the teaching objects, through teaching design, rationally select and use modern teaching media, and organically combine with traditional teaching methods, participate in the whole teaching process together, and use various media information to act on students. Form a reasonable teaching process structure to achieve the optimal teaching effect.
目前市面中使用的大部分计算机教学设备种类较多，且安装位置过于分散，安装高度和角度不便调节，不能满足现有多媒体教学的需要。At present, most of the computer teaching equipment used in the market has many types, and the installation locations are too scattered, and the installation height and angle are inconvenient to adjust, which cannot meet the needs of existing multimedia teaching.
发明内容Contents of the invention
本发明的目的在于提供一种计算机控制教学设备，以解决上述背景技术中所提出的问题。The object of the present invention is to provide a computer-controlled teaching device to solve the problems raised in the background art above.
为实现上述目的，本发明提供以下技术方案：一种计算机控制教学设备，包括桌体，其结构要点在于：所述的桌体上方设有显示机构、投影机构和摄像机构，所述的显示机构包括第一支撑盘、第一电动伸缩杆、第一转盘、第一旋转电机、第一角度调节机构和主显示屏，所述的第一支撑盘的底部通过数个第一电动伸缩杆与桌体相连接，其中第一支撑盘的上方设有第一转盘，第一支撑盘的下方设有第一旋转电机，且第一旋转电机的输出端贯穿第一支撑盘并与第一转盘的底部中心处相连接，所述的第一转盘的上方通过第一角度调节机构连接有主显示屏，所述的第一角度调节机构包括安装架、转动轴和驱动电机，所述的安装架固定在第一转盘的上方，其中安装架内安装有转动轴，安装架的一侧设有与转动轴相连接的驱动电机，且主显示屏的底部设有固定在转动轴外侧的固定套，所述的投影机构包括第二支撑盘、第二电动伸缩杆、第二转盘、第二旋转电机、第二角度调节机构和投影仪，所述的第二支撑盘的底部通过数个第二电动伸缩杆与桌体相连接，其中第二支撑盘的上方设有第二转盘，第二支撑盘的下方设有第二旋转电机，且第二旋转电机的输出端贯穿第二支撑盘并与第二转盘的底部中心处相连接，所述的第二转盘的上方通过第二角度调节机构连接有投影仪，所述的第二角度调节机构包括固定调节部和活动调节部，所述的固定调节部为支撑杆，且支撑杆的一端与第二转盘固连，另一端与投影仪底部的一端转动连接，所述的活动调节部包括两个第三电动伸缩杆，其中第三电动伸缩杆的一端与第二转盘固连，另一端与投影仪底部的另一端转动连接，所述的摄像机构包括横梁、摄像头和第四电动伸缩杆，其中横梁的一端的下方与摄像头相连接，另一端通过竖直转轴与第四电动伸缩杆的顶部转动连接，且第四电动伸缩杆的底部与桌体相连接，所述的桌体的上端面设有触摸显示屏和书写板，且书写板设于摄像头的正下方，所述的桌体设有储物箱，其中储物箱内设有控制器以及与触摸显示屏相连接的主机，且控制器分别与第一电动伸缩杆、第一旋转电机、主显示屏、驱动电机、第二电动伸缩杆、第二旋转电机、投影仪、第三电动伸缩杆、摄像头、第四电动伸缩杆和主机相连接，所述的储物箱的一侧安装有与控制器相连接的风扇。In order to achieve the above object, the present invention provides the following technical solutions: a computer-controlled teaching equipment, including a table body, the structural points of which are: a display mechanism, a projection mechanism and a camera mechanism are arranged above the table body, and the display mechanism It includes a first support plate, a first electric telescopic rod, a first turntable, a first rotating motor, a first angle adjustment mechanism and a main display screen. The body is connected, wherein the first turntable is arranged above the first support disk, the first rotating motor is arranged below the first support disk, and the output end of the first rotating motor passes through the first support disk and connects with the bottom of the first turntable. The center is connected, and the top of the first turntable is connected with the main display screen through the first angle adjustment mechanism. The first angle adjustment mechanism includes a mounting frame, a rotating shaft and a drive motor, and the mounting frame is fixed on Above the first turntable, a rotating shaft is installed in the mounting frame, a drive motor connected to the rotating shaft is provided on one side of the mounting frame, and a fixing sleeve fixed on the outside of the rotating shaft is provided at the bottom of the main display screen. The projection mechanism includes a second support plate, a second electric telescopic rod, a second turntable, a second rotating motor, a second angle adjustment mechanism and a projector, and the bottom of the second support plate passes through several second electric telescopic rods It is connected with the table body, wherein a second turntable is arranged above the second support disk, a second rotating motor is arranged below the second support disk, and the output end of the second rotating motor passes through the second support disk and connects with the second turntable connected at the center of the bottom of the second turntable, a projector is connected above the second turntable through a second angle adjustment mechanism, and the second angle adjustment mechanism includes a fixed adjustment part and a movable adjustment part, and the fixed adjustment part is A support rod, and one end of the support rod is fixedly connected with the second turntable, and the other end is rotationally connected with one end of the bottom of the projector. The movable adjustment part includes two third electric telescopic rods, wherein one end of the third electric telescopic rod is connected to The second turntable is fixedly connected, and the other end is rotationally connected with the other end of the bottom of the projector. The camera mechanism includes a beam, a camera and a fourth electric telescopic rod, wherein the bottom of one end of the beam is connected with the camera, and the other end is The rotating shaft is rotatably connected to the top of the fourth electric telescopic rod, and the bottom of the fourth electric telescopic rod is connected to the table body. The upper end surface of the table body is provided with a touch display screen and a writing board, and the writing board is arranged on the side of the camera. Directly below, the table body is provided with a storage box, wherein the storage box is provided with a controller and a host connected to the touch display screen, and the controller is connected with the first electric telescopic rod, the first rotating motor, the main The display screen, the drive motor, the second electric telescopic rod, the second rotating motor, the projector, the third electric telescopic rod, the camera, the fourth electric telescopic rod and the host are connected, and one side of the storage box is equipped with a Fan connected to the controller.
作为优选的，触摸显示屏设于书写板的左侧。As preferably, the touch display screen is arranged on the left side of the writing board.
作为优选的，储物箱的一侧铰接有箱门。Preferably, a door is hinged on one side of the storage box.
与现有技术相比，本发明设计合理，结构简单，智能化控制，操作方便，功能齐全，灵活性高，满足现有多媒体教学的需要，具有推广价值。Compared with the prior art, the present invention has reasonable design, simple structure, intelligent control, convenient operation, complete functions, high flexibility, meets the needs of existing multimedia teaching, and has popularization value.
附图说明Description of drawings
图1为本发明的主视图；Fig. 1 is the front view of the present invention;
图2为本发明的俯视图；Fig. 2 is the top view of the present invention;
图3为本发明显示机构的结构示意图；Fig. 3 is a structural schematic diagram of the display mechanism of the present invention;
图4为本发明投影机构的结构示意图；4 is a schematic structural view of the projection mechanism of the present invention;
图5为本发明摄像机构的结构示意图。Fig. 5 is a structural schematic diagram of the camera mechanism of the present invention.
具体实施方式Detailed ways
下面结合附图对本发明做进一步的解释说明，但不限制本发明的保护范围。The present invention will be further explained below in conjunction with the accompanying drawings, but the protection scope of the present invention will not be limited.
在本发明的描述中，需要说明的是，术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner" and "outer" are based on the Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.
请参阅图1-5，本发明提供一种技术方案，一种计算机控制教学设备，包括桌体1，所述的桌体1上方设有显示机构、投影机构和摄像机构。Referring to Figures 1-5, the present invention provides a technical solution, a computer-controlled teaching device, which includes a table body 1, and a display mechanism, a projection mechanism and a camera mechanism are arranged above the table body 1.
所述的显示机构包括第一支撑盘2、第一电动伸缩杆3、第一转盘4、第一旋转电机5、第一角度调节机构和主显示屏6，所述的第一支撑盘2的底部通过数个第一电动伸缩杆3与桌体1相连接，通过第一电动伸缩杆3可以调节主显示屏6的高度，其中第一支撑盘2的上方设有第一转盘4，第一支撑盘2的下方设有第一旋转电机5，且第一旋转电机5的输出端贯穿第一支撑盘2并与第一转盘4的底部中心处相连接，通过第一旋转电机5可以调节主显示屏6在水平方向上的旋转角度，所述的第一转盘4的上方通过第一角度调节机构连接有主显示屏6，所述的第一角度调节机构包括安装架7、转动轴8和驱动电机9，所述的安装架7固定在第一转盘4的上方，其中安装架7内安装有转动轴8，安装架7的一侧设有与转动轴8相连接的驱动电机9，且主显示屏6的底部设有固定在转动轴8外侧的固定套10，通过驱动电机9可以调节主显示屏6的俯仰角度。The display mechanism includes a first support plate 2, a first electric telescopic rod 3, a first turntable 4, a first rotating motor 5, a first angle adjustment mechanism and a main display screen 6, and the first support plate 2 The bottom is connected with the table body 1 through several first electric telescopic rods 3, and the height of the main display screen 6 can be adjusted through the first electric telescopic rods 3, wherein a first turntable 4 is arranged above the first support plate 2, and the first The bottom of the support disc 2 is provided with a first rotary motor 5, and the output end of the first rotary motor 5 runs through the first support disc 2 and is connected with the bottom center of the first turntable 4, and the main motor can be adjusted by the first rotary motor 5. The rotation angle of the display screen 6 in the horizontal direction, the top of the first turntable 4 is connected with the main display screen 6 through the first angle adjustment mechanism, and the first angle adjustment mechanism includes a mounting bracket 7, a rotating shaft 8 and Drive motor 9, described mounting frame 7 is fixed on the top of the first turntable 4, wherein rotating shaft 8 is installed in mounting frame 7, and one side of mounting frame 7 is provided with the driving motor 9 that is connected with rotating shaft 8, and The bottom of the main display screen 6 is provided with a fixed sleeve 10 fixed on the outside of the rotating shaft 8 , and the pitch angle of the main display screen 6 can be adjusted by driving the motor 9 .
所述的投影机构包括第二支撑盘11、第二电动伸缩杆12、第二转盘13、第二旋转电机14、第二角度调节机构和投影仪15，所述的第二支撑盘11的底部通过数个第二电动伸缩杆12与桌体1相连接，通过第二电动伸缩杆12可以调节投影仪15的高度，其中第二支撑盘11的上方设有第二转盘13，第二支撑盘11的下方设有第二旋转电机14，且第二旋转电机14的输出端贯穿第二支撑盘11并与第二转盘13的底部中心处相连接，通过第二旋转电机14可以调节投影仪15在水平方向上的旋转角度，所述的第二转盘13的上方通过第二角度调节机构连接有投影仪15，所述的第二角度调节机构包括固定调节部和活动调节部，所述的固定调节部为支撑杆16，且支撑杆16的一端与第二转盘13固连，另一端与投影仪15底部的一端转动连接，所述的活动调节部包括两个第三电动伸缩杆17，其中第三电动伸缩杆17的一端与第二转盘13固连，另一端与投影仪15底部的另一端转动连接，通过第三电动伸缩杆17可以调节投影仪15的俯仰角度，支撑杆16设有投影仪15的中线上，且两个第三电动伸缩杆17对称设于投影仪15的中线的两侧，以保证投影仪15在角度调节过程中的稳定性。The projection mechanism includes a second support plate 11, a second electric telescopic rod 12, a second turntable 13, a second rotating motor 14, a second angle adjustment mechanism and a projector 15, and the bottom of the second support plate 11 Connect with the table body 1 through several second electric telescopic rods 12, the height of the projector 15 can be adjusted by the second electric telescopic rods 12, wherein the top of the second support plate 11 is provided with a second turntable 13, the second support plate 11 is provided with a second rotary motor 14, and the output end of the second rotary motor 14 runs through the second support plate 11 and is connected with the bottom center of the second turntable 13, and the projector 15 can be adjusted by the second rotary motor 14. For the rotation angle in the horizontal direction, a projector 15 is connected above the second turntable 13 through a second angle adjustment mechanism, and the second angle adjustment mechanism includes a fixed adjustment part and a movable adjustment part. The adjustment part is a support rod 16, and one end of the support rod 16 is fixedly connected with the second turntable 13, and the other end is rotatably connected with one end of the bottom of the projector 15. The movable adjustment part includes two third electric telescopic rods 17, wherein One end of the third electric telescopic rod 17 is fixedly connected with the second turntable 13, and the other end is rotationally connected with the other end at the bottom of the projector 15. The pitch angle of the projector 15 can be adjusted by the third electric telescopic rod 17. The support rod 16 is provided with The centerline of the projector 15, and two third electric telescopic rods 17 are symmetrically arranged on both sides of the centerline of the projector 15, so as to ensure the stability of the projector 15 during angle adjustment.
所述的摄像机构包括横梁18、摄像头19和第四电动伸缩杆20，其中横梁18的一端的下方与摄像头19相连接，另一端通过竖直转轴21与第四电动伸缩杆20的顶部转动连接，且第四电动伸缩杆20的底部与桌体1相连接，通过第四电动伸缩杆20可以调节摄像头19的高度，通过竖直转轴21可以调节摄像头19在水平方向上的旋转角度。The camera mechanism includes a crossbeam 18, a camera 19 and a fourth electric telescopic rod 20, wherein the bottom of one end of the crossbeam 18 is connected with the camera 19, and the other end is rotationally connected with the top of the fourth electric telescopic rod 20 through a vertical shaft 21 , and the bottom of the fourth electric telescopic rod 20 is connected with the table body 1, the height of the camera 19 can be adjusted by the fourth electric telescopic rod 20, and the rotation angle of the camera 19 in the horizontal direction can be adjusted by the vertical rotating shaft 21.
所述的桌体1的上端面设有触摸显示屏22和书写板23，且书写板23设于摄像头19的正下方，触摸显示屏22可以用于教师使用，通过触摸显示屏22可以显示和书写教学内容，并可以通过投影仪15显示的投影布上，或是直接显示在主显示屏6上，以供学生观看，书写板23可以书写内容，或是在书写板23位置放置需要展示的教学用品，并可以通过投影仪15显示的投影布上，或是直接显示在主显示屏6上，以供学生观看，所述的桌体1设有储物箱24，其中储物箱24内设有控制器25以及与触摸显示屏22相连接的主机26，且控制器25分别与第一电动伸缩杆3、第一旋转电机5、主显示屏6、驱动电机9、第二电动伸缩杆12、第二旋转电机14、投影仪15、第三电动伸缩杆17、摄像头19、第四电动伸缩杆20和主机26相连接，所述的储物箱24的一侧安装有与控制器25相连接的风扇28，夏天时，可以降低周围温度，提高教师使用舒适度。The upper end surface of described table body 1 is provided with touch display screen 22 and writing board 23, and writing board 23 is located at directly below camera 19, and touch display screen 22 can be used for teacher's use, can display and Write the teaching content, and can be displayed on the projection cloth by the projector 15, or directly displayed on the main display screen 6, for students to watch, the writing board 23 can write the content, or place the text that needs to be displayed on the writing board 23 positions teaching supplies, and can be displayed on the projection cloth by the projector 15, or directly displayed on the main display screen 6, for students to watch, the table body 1 is provided with a storage box 24, wherein in the storage box 24 A controller 25 and a host 26 connected to the touch screen 22 are provided, and the controller 25 is connected with the first electric telescopic rod 3, the first rotating motor 5, the main display screen 6, the driving motor 9, the second electric telescopic rod respectively. 12. The second rotating motor 14, the projector 15, the third electric telescopic rod 17, the camera 19, the fourth electric telescopic rod 20 and the host 26 are connected, and one side of the storage box 24 is equipped with a controller 25 The connected fan 28 can reduce the ambient temperature in summer and improve the comfort of teachers.
其中，在本实施例中，所述的触摸显示屏22设于书写板23的左侧。Wherein, in this embodiment, the touch display screen 22 is arranged on the left side of the writing board 23 .
其中，在本实施例中，所述的储物箱24的一侧铰接有箱门27。Wherein, in this embodiment, a door 27 is hinged on one side of the storage box 24 .
本发明设计合理，结构简单，智能化控制，操作方便，功能齐全，灵活性高，满足现有多媒体教学的需要，具有推广价值。The invention has reasonable design, simple structure, intelligent control, convenient operation, complete functions and high flexibility, meets the needs of existing multimedia teaching, and has popularization value.
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内，不应将权利要求中的任何附图标记视为限制所涉及的权利要求。It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the invention, and any reference sign in a claim shall not be construed as limiting the claim concerned.
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.
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Application publication date: 20191115 |