CN207676530U - Musical instrument tutor auxiliary platform equipment and Piano Teaching assist external member - Google Patents
Musical instrument tutor auxiliary platform equipment and Piano Teaching assist external member Download PDFInfo
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- CN207676530U CN207676530U CN201721092041.3U CN201721092041U CN207676530U CN 207676530 U CN207676530 U CN 207676530U CN 201721092041 U CN201721092041 U CN 201721092041U CN 207676530 U CN207676530 U CN 207676530U
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Abstract
The utility model provides a kind of musical instrument tutor auxiliary platform equipment, including：Photographic device, for shooting action of the finger on musical instrument；Signal processing apparatus, image or video for receiving photographic device acquisition；Support device, photographic device are installed on by support device on musical instrument, and by Mobile support device, can adjust the relative position of photographic device and the musical instrument；Photographic device includes camera, light compensating lamp and the revolving part being arranged on camera, and light compensating lamp is rotatablely connected with camera, and a storage space is arranged in camera, and when rotating revolving part, light compensating lamp is rotated into storage space.The musical instrument tutor auxiliary platform equipment of the utility model can record the video and audio that musical instrument is played and be transmitted in real time, can be used for the long-distance education of musical instrument, or cooperation training mate system carries out musical instrument practice, and cost is relatively low, easy to use；Light compensating lamp is set on camera, light source can be supplemented when ambient light is dark.The invention also discloses a kind of Piano Teachings to assist external member.
Description
Technical field
The utility model is related to a kind of musical instrument tutor auxiliary platform equipment and Piano Teaching auxiliary external member more particularly to one kind to be used for
The musical instrument tutor auxiliary platform equipment and Piano Teaching for acquiring video assist external member.
Background technology
Traditionally musical instrument educational pattern is mainly aspectant teaching.However, current internet and machine learning when
For under background, the interpersonal economic cost for cooperating, connecting and time cost constantly reduce, and thousand changes also have occurred in teaching method
Wan Hua, such as remote teaching, AI teaching etc., can greatly reduce instruction cost.
For musical instrument education, in order to realize remote teaching, AI teaching etc., need first to obtain finger moving on musical instrument
Make, so that teacher or machine instruct its fingering etc..
Utility model content
The purpose of this utility model is to provide a kind of musical instrument tutor auxiliary platform equipment and Piano Teaching to assist external member.
In order to realize one of above-mentioned purpose of utility model, it is auxiliary that one embodiment of the utility model provides a kind of musical instrument teaching
Equipment is helped, including：
Photographic device, for shooting action of the finger on musical instrument；Signal processing apparatus, for receiving the photographic device
The image or video of acquisition；Support device, the photographic device is installed on by the support device on the musical instrument, and is passed through
The support device can adjust the relative position of the photographic device and the musical instrument；The photographic device includes camera, mends
Light lamp and the revolving part being arranged on the camera, the light compensating lamp are rotatablely connected with the camera, and the camera is set
A storage space is set, when rotating the revolving part, the light compensating lamp is rotated into the storage space.
As being further improved for one embodiment of the utility model, the support device includes a telescopic rod and pedestal group
Part, the photographic device are installed on one end of the telescopic rod, the other end of the telescopic rod swingably with the pedestal group
Part is connected, and the base assembly is mounted on the musical instrument.
As being further improved for one embodiment of the utility model, the base assembly includes firm banking and holder bottom
Seat, the bracket base detachable connection in the firm banking, the telescopic rod swingably with the bracket base phase
Even, the firm banking detachable connection is in the musical instrument.
As being further improved for one embodiment of the utility model, the signal processing apparatus is arranged at the holder bottom
On seat, the signal processing apparatus includes at least two USB interfaces, and the USB interface is respectively used to and the photographic device phase
Even, with the transmission data between the photographic device and the signal processing apparatus, and for being connected with electronic equipment, with
Transmission data between the signal processing apparatus and the electronic equipment.
Adjustable magnet is set as being further improved for one embodiment of the utility model, on the bracket base and is opened
It closes, the firm banking is made of ferrimagnet, magnetic force size of the switch for controlling the adjustable magnet, the branch
Frame pedestal is connected to the firm banking by the adjustable magnet.
As being further improved for one embodiment of the utility model, the side of the bracket base is equipped with soft light.
As being further improved for one embodiment of the utility model, the junction of the photographic device and the telescopic rod
First adjustment portion is set, and first adjustment portion is used to adjust the relative position of photographic device and telescopic rod；The telescopic rod with
The second adjustment portion is arranged in the junction of the bracket base, and second adjustment portion is for adjusting phase of the telescopic rod with bracket base
To position.
As being further improved for one embodiment of the utility model, the camera is high definition wide-angle camera.
As being further improved for one embodiment of the utility model, the revolving part is snapped connection with the camera.
The invention also discloses a kind of Piano Teachings to assist external member, including the musical instrument teaching described in above-mentioned any one
Ancillary equipment and identification point component, the identification point component include the bar with identification point, and the identification point can be from finger
Show and removed on item, and is alternatively installed on the key of piano.
Compared with the existing technology, the utility model has technical effect that：The musical instrument tutor auxiliary platform equipment of the utility model
By the way that photographic device, support device and signal processing apparatus is arranged, the video and audio that musical instrument is played can be recorded and carry out reality
When transmit, can be used for realize musical instrument long-distance education, or cooperation training mate system carry out musical instrument practice, cost is relatively low, user
Just；Light compensating lamp is set on camera, light source can be supplemented when ambient light is dark, and can be by light filling when without using light compensating lamp
Lamp is packed up, and space is saved.The invention also discloses a kind of Piano Teachings, and external member, including above-mentioned musical instrument tutor auxiliary platform to be assisted to set
Standby and identification point component, identification point component include the bar with identification point, and identification point can be removed from bar, and can
It is optionally mounted on the key of piano.
Description of the drawings
Fig. 1 is the structural schematic diagram of support device in the utility model embodiment；
Fig. 2 is the structural schematic diagram of photographic device in the utility model embodiment；
Fig. 3 is the structural schematic diagram of photographic device another kind state in the utility model embodiment；
Fig. 4 is the schematic diagram that musical instrument tutor auxiliary platform equipment is used cooperatively with piano in the utility model embodiment
Fig. 5 is the structural schematic diagram of identification point component in the utility model embodiment.
Specific implementation mode
The utility model is described in detail below with reference to each embodiment shown in the drawings.But these embodiments
It is not intended to limit the utility model, structure, method or the work(that those skilled in the art are made according to these embodiments
Transformation on energy is all contained in the scope of protection of the utility model.
In one embodiment of the utility model, a kind of musical instrument tutor auxiliary platform equipment 100 is provided, as shown in Figs 1-4, including
Photographic device 120, signal processing apparatus 130 and support device 110.In the present embodiment, the musical instrument is piano 200.
Wherein, photographic device 120 is for shooting action of the finger on musical instrument 200；Photographic device 120 passes through support device
110 are installed on musical instrument 200, and by support device 110, can adjust the relative position of photographic device 120 and musical instrument 200；Institute
State image or video of the signal processing apparatus 130 for receiving the acquisition of photographic device 120.
In the present embodiment, as shown in Figure 2 and Figure 3, the photographic device 120 includes camera 121, light compensating lamp 122 and sets
The revolving part 123 on the camera 121 is set, the light compensating lamp 122 is rotatablely connected with the camera, the camera
121 one storage spaces of setting, rotate the revolving part 123, the light compensating lamp 122 is rotated into the storage space.
In the present embodiment, as shown in Figure 2 and Figure 3, the light compensating lamp 122 is two, is separately positioned on the camera
121 both sides, camera 121 include the first face and the second face being oppositely arranged, and revolving part 123, the second face is arranged on the first face
Storage space is set.Two light compensating lamps 122 are respectively equipped with connecting pin 1221 and front of motor 1222, and two light compensating lamps 122 exist respectively
1221 are rotatablely connected with the camera 121 at the connecting pin.
When not having to light compensating lamp 122 usually or 122 use of light compensating lamp finishes, revolving part 123 can be rotated clockwise, then
Two light compensating lamps 122 can be rotated into the storage space respectively, and front of motor 1222 is close to the camera 121, last whole
A light compensating lamp 122 is close to the placement of the camera 121, and Fig. 2 is state when light compensating lamp 122 enters storage space.
When need using light compensating lamp when, rotate counterclockwise the revolving part 123, then two light compensating lamps 122 can rotate from
Storage space is opened, the front of motor 1222 is far from the camera 121,122 setting in alignment of last two light compensating lamp.If
Revolving part 123 is set, two light compensating lamps 122 can be packed up, so that it is close to the placement of camera 121, takes up space small, it is convenient for collecting,
As long as and rotating revolving part when using, you can two light compensating lamps 122 are flicked setting in alignment, range of exposures is larger, uses
It is convenient.
Preferably, the revolving part 123 is snapped connection with the camera 121, and revolving part 123 is connected by a snap in taking the photograph
It is simple in structure as head 121, facilitate installation.In other embodiments, revolving part can also by bonding, welding etc. modes with take the photograph
As head connects.
The camera 121 is high definition wide-angle camera；High definition wide-angle camera can be in the case where distorting very little, to the greatest extent
It is possible to collect more scenes, and picture is clear.
Because where user lighting environment complexity and otherness it is larger, such as it is dark can to transmission play picture it is clear
Degree has an impact, therefore light compensating lamp 122 is arranged on photographic device 120, can open light compensating lamp 122 when needed with to photographic device
120 shooting area carries out light reinforcement, and the light angle of light compensating lamp 122 is adjustable, can be pointedly certain compared with dark space
Domain carry out light reinforcement, in the present embodiment, be by the operation on electronic equipment 300 in corresponding APP to light angle into
Row adjustment, in other embodiments, light angle can also be carried out by the way that the modes such as adjustment button are arranged on photographic device
Adjustment, the utility model are not restricted this.
In the present embodiment, as shown in Figs 1-4, the support device 110 includes a telescopic rod 111 and base assembly 112,
The photographic device 120 is swingably installed on one end of the telescopic rod 111, and the other end of the telescopic rod 111 is swingable
Ground is connected with the base assembly 112, and the base assembly 112 is mounted on the musical instrument 200.
Preferably, the base assembly 112 includes firm banking 1121 and bracket base 1122, the bracket base 1122
Detachable connection is swingably connected with the bracket base 1122 in the firm banking 1121, the telescopic rod 111, institute
1121 detachable connection of firm banking is stated in the musical instrument 200.
In the present embodiment, removable plastic is set on the firm banking 1121, and the firm banking 1121 can described in
Glue is moved to be mounted on the musical instrument 200.Firm banking 1121 is sticked on musical instrument 200 by removable plastic, then musical instrument can be made to impart knowledge to students
Ancillary equipment 100 is fixedly mounted on musical instrument 200, and when not in use, also can easily it remove.In other embodiments,
The firm banking can also by buckle, the structures such as clip be mounted on the musical instrument on, the utility model embodiment to this not
It is restricted.
Further, the signal processing apparatus 130 is integrated on the bracket base 1122, the signal processing apparatus
130 include at least two USB interfaces.The USB interface is respectively used to be connected with the photographic device, in the photographic device
The transmission data between the signal processing apparatus, and for being connected with electronic equipment, with the signal processing apparatus with
Transmission data between the electronic equipment.
In the present embodiment, it as shown in Figure 1, the signal processing apparatus 130 includes four usb 1s 31, is arranged at
On the bracket base 1122.One of USB interface is spare, and the other three usb 1 31 is respectively used to access power supply
400, to provide electric power for photographic device 120；For connecting photographic device 120, in the photographic device 120 and the branch
Transmission data between frame pedestal 1122；And for connecting electronic equipment 300, such as mobile phone, computer etc., in the bracket base
Transmission data between 1122 and the electronic equipment 300, so far, photographic device 120 can be set by bracket base 1122 with electronics
Data transmission and control are realized between standby 300, also, the data on electronic equipment 300 also can remotely be passed by modes such as networks
Transport to server or other equipment.In other embodiments, photographic device also can by other interfaces, such as Type C interface,
Or realize that data transmission and control between electronic equipment, the utility model are real by modes such as WLAN, bluetooths
Example is applied not to be restricted this.
Signal processing apparatus 130 is integrated on bracket base 1122, then does not have to individually separately set a signal processing apparatus,
Photographic device 120, electronic equipment 300 and power supply 400 etc. are directly attached by bracket base 1122, escapable cost, and
And it is easy to use.
In a further embodiment, multiple auxiliary cameras, the auxiliary camera can be also set on the bracket base
It can be directed at the various pieces of musical instrument in different angle, picture is played with the acquisition of multi-angle various dimensions.
Further, adjustable magnet (not shown) and switch 1123, the fixed bottom are set on the bracket base 1122
Seat 1121 is made of ferrimagnet, and the switch 1123 is used to control the magnetic force size of the adjustable magnet, the holder bottom
1122 are connected to the firm banking 1121 by the adjustable magnet.When in use, first firm banking 1121 is installed to
On musical instrument 200, then bracket base 1122 is installed on firm banking 1121, at this time can toggle switch 1124, making can adjustable magnetic
The magnetic force of iron increases, then can securely connect the two；It, can if needing to remove musical instrument tutor auxiliary platform equipment using finishing
Toggle switch 1124 again make the magnetic force of adjustable magnet 1123 reduce until disappearing, then can easily take bracket base 1122
Under.
Preferably, the side of the bracket base 1122 is equipped with soft light 1125.As described in Fig. 1 and Fig. 4, when musical instrument is imparted knowledge to students
When ancillary equipment 100 is placed on piano 200, soft light 1125 can illuminate the face of shooting area, make the face of shooting more
Beauty, clearly, and the light sent out is not soft dazzling.
Preferably, the junction of the photographic device 120 and the telescopic rod 111 is arranged the first adjustment portion 114, adjustment the
One adjustment portion 114 then correspondingly can adjust the relative position of photographic device 120 and telescopic rod 111；In the present embodiment, it images
Device 120 is connected by a snap with the telescopic rod 111, and first adjustment portion 114 is interior hexagonal lock screw, and described interior six
For the axis direction of angle lock screw perpendicular to the axis direction of the telescopic rod 111, the photographic device 120 can be around described interior six
The axis direction of angle lock screw rotates, and back-outs the first adjustment portion 114, then rotatable camera 120, is adjusted to suitable angle
After degree, the first adjustment portion 114 is tightened, then 120 position of photographic device is fixed.The angle of photographic device 120 can adjust, then taking
When scape picture is imperfect or has deviation, photographic device 120 is can adjust, completely to shoot the action of musical instrument and finger on musical instrument.
Further, the telescopic rod 111 includes interior bar 1111, knob 1113 and outer bar 1112, twists knob 1113, can
It pulls out or withdraws interior bar 1111, to change the length of telescopic rod 111.
Preferably, the second adjustment portion 115, adjustment is arranged in the junction of the telescopic rod 111 and the bracket base 1122
Second adjustment portion 115, the then correspondingly relative position of adjustable retractable bar 111 and bracket base 1122；In the present embodiment, institute
Telescopic rod 111 to be stated to be connected by a snap with the bracket base 1122, second adjustment portion 115 is interior hexagonal lock screw,
For the axis direction of the interior hexagonal lock screw perpendicular to the axis direction of the telescopic rod 111, the telescopic rod 111 can be around institute
The axis direction rotation for stating interior hexagonal lock screw, back-outs the second adjustment portion 115, then rotatable telescopic rod 111, is adjusted to suitable
Angle after, tighten the second adjustment portion 115, then 111 position of telescopic rod is fixed, the length and angle adjustable of telescopic rod 111, can
It is used in combination with the adjustment of the angle of photographic device 120, further to adjust picture of finding a view so that adjusting range bigger, more preferably
The action on musical instrument of shooting musical instrument and finger.
In the present embodiment, as shown in figure 5, also disclosing a kind of Piano Teaching auxiliary external member, including the teaching of above-mentioned musical instrument
Ancillary equipment 100 and identification point component 140, the identification point component 140 include the bar 141 with identification point 142,
The identification point 142 can be removed from bar 141, and be alternatively installed on the key of piano.
Preferably, identification point component 140 further includes the first tool pins 143 and the second tool pins 144, the bar 141
On be provided with 12 identification points 142, in use, 12 identification points 142 are pressed as required in piano with the first tool pins 143
On key, if there have identification point 142 to paste to be askew, it the second tool pins 144 can be used to adjust identification point 142 and be aligned.Identification point 142 is double
Color, and can Reusability, in live broadcast teaching scene can according to actual conditions select paste.
The usage scenario of the musical instrument tutor auxiliary platform equipment of the utility model is described in detail below.As shown in Figs. 1-5,
In the present embodiment, the musical instrument 200 is piano, and the musical instrument tutor auxiliary platform equipment 100 includes photographic device 120, telescopic rod
111, photographic device 120 is mounted on one end of telescopic rod 111 by bracket base 1122 and firm banking 1121 first, then will be stretched
The other end of contracting bar 111 is mounted on bracket base 1122, then, entire musical instrument tutor auxiliary platform equipment 100 is mounted on piano
On 200.When mounted, firm banking 1121 is first pasted onto to the forward position of 200 top surface of piano, piano cloth can then be covered, then
Bracket base 1122 is placed on firm banking 1121, toggle switch 1124, so that the magnetic force of adjustable magnet 1123 is increased, at this time
1122 related telescopic rod 111 of bracket base and photographic device 120 are fixedly mounted on firm banking 1121 together.It is using
When finishing, can toggle switch 1124 again, so that the magnetic force of adjustable magnet 1123 is reduced until disappearing, bracket base 1122 removed
, used for convenience of next time, firm banking 1121 can not be removed.
Next, a USB interface is connected camera 121, another USB interface mobile power 400, third USB
Interface connects electronic equipment 300, the last one USB interface is spare；Then mobile power 400 is opened, then opens electronic equipment 300
Upper corresponding APP, when the power supply indicator 124 on camera 121 shows blue lamp, then it represents that electronic equipment 300 and camera 121
It has connected, can show the viewfinder image of camera 121 in APP at this time.
The position of camera 121 and the length and angle of angle and telescopic rod 111 can be adjusted according to viewfinder image；
Such as when viewfinder image show key it is excessive, cannot show all keys completely, can back-out at this time the second adjustment portion 115 with adjust stretch
The angle of contracting bar 111, while knob 1113 can be also back-outed, interior bar 1111 is pulled out, increases the length of telescopic rod 111, works as adjustment
After, the second adjustment portion 115 and knob 1113 are tightened respectively, then telescopic rod 111 can be fixed；When key is whole in figure of finding a view
It is on the upper side or on the lower side as in, the first adjustment portion 114 can be back-outed to adjust the angle of camera 121, adjustment finishes tightens the first tune again
Section portion 114 can fix camera 121.After position is adjusted, you can light compensating lamp 122 is opened in APP, according to site environment
Adjust the light intensity of light compensating lamp 122.
After above step is completed, you can carry out the online teaching of piano, or practice playing the musical instrument under training mate system.
In addition, if it is desired, identification point component 140 can be used that the key of piano 200 is marked.In use, with
One tool pins 143 press 12 identification points 142 on the key of piano 200 as required, if there is identification point patch askew, may be used
Identification point is adjusted and is aligned by the second tool pins 144.Identification point be it is double-colored, and can Reusability, can in live broadcast teaching scene
It selects to paste according to actual conditions.
The musical instrument tutor auxiliary platform equipment of the utility model is by being arranged photographic device, and support device and setting are in support device
On signal processing apparatus, the video and audio that musical instrument is played can be recorded and transmitted in real time, can be used for realizing musical instrument
Long-distance education, or cooperation training mate system carry out musical instrument practice, and cost is relatively low, easy to use；Light compensating lamp is set on camera, it can
Light source is supplemented when ambient light is dark.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiment of understanding.
Tool of the series of detailed descriptions listed above only for the feasible embodiment of the utility model
Body illustrates that they are all without departing from made by the utility model skill spirit not to limit the scope of protection of the utility model
Equivalent implementations or change should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of musical instrument tutor auxiliary platform equipment, which is characterized in that the musical instrument tutor auxiliary platform equipment includes：
Photographic device, for shooting action of the finger on musical instrument；
Signal processing apparatus, the image or video obtained for receiving the photographic device；
Support device, the photographic device are installed on by the support device on the musical instrument, and pass through the support device
The relative position of the adjustable photographic device and the musical instrument；
The photographic device includes camera, light compensating lamp and the revolving part being arranged on the camera, the light compensating lamp and institute
Camera rotation connection is stated, a storage space is arranged in the camera, and when rotating the revolving part, the light compensating lamp is rotated into
The storage space.
2. musical instrument tutor auxiliary platform equipment according to claim 1, which is characterized in that the support device include a telescopic rod and
Base assembly, the photographic device are installed on one end of the telescopic rod, the other end of the telescopic rod swingably with it is described
Base assembly is connected, and the base assembly is mounted on the musical instrument.
3. musical instrument tutor auxiliary platform equipment according to claim 2, which is characterized in that the base assembly includes firm banking
And bracket base, the bracket base detachable connection in the firm banking, the telescopic rod swingably with the branch
Frame pedestal is connected, and the firm banking detachable connection is in the musical instrument.
4. musical instrument tutor auxiliary platform equipment according to claim 3, which is characterized in that the signal processing apparatus is integrated in institute
It states on bracket base, the signal processing apparatus includes at least two USB interfaces, and the USB interface is respectively used to take the photograph with described
As device is connected, with the transmission data between the photographic device and the signal processing apparatus, and it is used for and electronic equipment
It is connected, with the transmission data between the signal processing apparatus and the electronic equipment.
5. musical instrument tutor auxiliary platform equipment according to claim 3, which is characterized in that setting can adjustable magnetic on the bracket base
Iron and switch, the firm banking are made of ferrimagnet, magnetic force size of the switch for controlling the adjustable magnet,
The bracket base is connected to the firm banking by the adjustable magnet.
6. musical instrument tutor auxiliary platform equipment according to claim 3, which is characterized in that the side of the bracket base is equipped with soft
Light lamp.
7. musical instrument tutor auxiliary platform equipment according to claim 3, which is characterized in that the photographic device and the telescopic rod
Junction the first adjustment portion is set, first adjustment portion is used to adjust the relative position of photographic device and telescopic rod；It is described
The second adjustment portion is arranged in the junction of telescopic rod and the bracket base, and second adjustment portion is for adjusting telescopic rod and holder
The relative position of pedestal.
8. musical instrument tutor auxiliary platform equipment according to claim 1, which is characterized in that the camera is high definition wide-angle imaging
Head.
9. musical instrument tutor auxiliary platform equipment according to claim 1, which is characterized in that the revolving part and the camera clamp
Button connection.
10. a kind of Piano Teaching assists external member, which is characterized in that include the musical instrument as described in any one of claim 1-9
Tutor auxiliary platform equipment and identification point component, the identification point component include the bar with identification point, and the identification point can
It removes, and is alternatively installed on the key of piano from bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721092041.3U CN207676530U (en) | 2017-08-29 | 2017-08-29 | Musical instrument tutor auxiliary platform equipment and Piano Teaching assist external member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721092041.3U CN207676530U (en) | 2017-08-29 | 2017-08-29 | Musical instrument tutor auxiliary platform equipment and Piano Teaching assist external member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207676530U true CN207676530U (en) | 2018-07-31 |
Family
ID=62954247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721092041.3U Active CN207676530U (en) | 2017-08-29 | 2017-08-29 | Musical instrument tutor auxiliary platform equipment and Piano Teaching assist external member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207676530U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109920301A (en) * | 2019-03-25 | 2019-06-21 | 成都奇伟适度教育咨询有限公司 | A kind of device of zero basic learning drawing |
| CN111131711A (en) * | 2019-12-31 | 2020-05-08 | 云知声智能科技股份有限公司 | Device for changing angle of camera based on child robot |
-
2017
- 2017-08-29 CN CN201721092041.3U patent/CN207676530U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109920301A (en) * | 2019-03-25 | 2019-06-21 | 成都奇伟适度教育咨询有限公司 | A kind of device of zero basic learning drawing |
| CN111131711A (en) * | 2019-12-31 | 2020-05-08 | 云知声智能科技股份有限公司 | Device for changing angle of camera based on child robot |
| CN111131711B (en) * | 2019-12-31 | 2021-05-04 | 云知声智能科技股份有限公司 | Device for changing angle of camera based on child robot |
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