CN210351528U - Cloud platform is tracked to microphone based on light source - Google Patents
Cloud platform is tracked to microphone based on light source Download PDFInfo
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- CN210351528U CN210351528U CN201921309038.1U CN201921309038U CN210351528U CN 210351528 U CN210351528 U CN 210351528U CN 201921309038 U CN201921309038 U CN 201921309038U CN 210351528 U CN210351528 U CN 210351528U
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Abstract
The utility model relates to a cloud platform is tracked to microphone based on light source, its structure includes cloud platform device, microphone device and light source module, cloud platform device and the separable setting of microphone device, light source module and the integrated setting of microphone device/or light source module and the separable setting of microphone device set up on same pursuit target when using. The technical scheme can accurately track the target emitting the audio information and can acquire the audio information at the target; secondly, the power supply module of the tripod head in the technical scheme can supply power for all modules in the tracking tripod head and can also supply power for shooting equipment; in addition, the tracking holder in the technical scheme is simple to operate and flexible to adjust; the technical scheme can also be suitable for different types of shooting equipment.
Description
Technical Field
The utility model relates to a track cloud platform, especially a cloud platform is tracked to microphone based on light source.
Background
The existing tracking cradle head mostly adopts an image analysis mode to track an object, namely, the movement or change condition of a tracking target in an image is analyzed and tracked according to the image shot by a lens arranged on the cradle head, but the tracking effect of the tracking scheme is poor in a complex state (for example, a plurality of similar targets moving simultaneously appear in the image or the tracking target is blocked).
Chinese patent publication CN108605081A discloses an intelligent target tracking method and related device, in which a tracking controller can accurately track a target according to light source information in an image sequence acquired by a lens by setting a light source emitting a local light variation pattern.
The technical scheme provides a microphone tracking holder based on a light source based on the intelligent target tracking method. Especially in the scenes of training or meeting and the like, the interphone needs to automatically track, shoot, play (including images and sounds), record and the like in real time, and the tracking cradle head can provide a good technical solution in the scenes.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a microphone tracking pan-tilt based on a light source, which can accurately track a target emitting audio information and can acquire the audio information of the target; secondly, the power supply module of the tripod head in the technical scheme can supply power for all modules in the tracking tripod head and can also supply power for shooting equipment; in addition, the tracking holder in the technical scheme is simple to operate and flexible to adjust; the technical scheme can also be suitable for different types of shooting equipment.
The utility model provides a technical scheme that above-mentioned technical problem adopted is:
a microphone tracking holder based on a light source structurally comprises a holder device, a microphone device and a light source module, wherein the holder device and the microphone device are arranged in a separable mode;
the holder device comprises a driving module, a rotating module, a supporting module, a tracking lens, a holder control module and a holder power module for supplying power to the holder device, wherein the driving module is connected with and drives the rotating module, the supporting module and the tracking lens are connected to the rotating module, the holder control module is connected with the driving module and the tracking lens, and the tracking lens is used for acquiring a light source with a local light variation mode;
the microphone device comprises a microphone control module, a signal input module, a microphone transmission module and a microphone power supply module for supplying power to the microphone device, wherein the microphone control module is connected with the signal input module and the microphone transmission module, and the signal input module is connected with the microphone transmission module;
the light source module is used for emitting a light source with a local light change mode.
The tracking holder in the technical scheme is used for placing shooting equipment for shooting the tracking target, can realize the rotary motion within at least 360 degrees by arranging the rotating module, and can realize 360-degree tracking shooting in a horizontal scene of the shooting equipment if a horizontal rotating device is arranged in the rotating module; a horizontal rotating device and a vertical turning device can be arranged in the rotating module to realize 720-degree panoramic tracking, of course, only the horizontal rotating device can be arranged in the rotating module, and the vertical turning function is realized by other modules (such as a supporting module), so that 720-degree panoramic tracking can also be realized; in some special situations, the rotating module may be provided with only a vertical turning device or a turning device in other directions (such as bungee jumping, diving, etc.). According to the technical scheme, the light source module and the microphone device are matched for use (integrated or arranged on the same tracking target), so that a tracking holder can accurately track a speaker in a training or conference, the microphone transmission module arranged in the microphone device can be communicated with shooting equipment or public playing equipment, and therefore audio information obtained by the signal input module can be synchronously played or recorded. The light source module adopted in the technical scheme is a light source with a local light change mode, and the tracking holder can quickly and accurately acquire the position and the moving direction of a tracking target in an image sequence, so that the tracking of the target sending audio information is accurately realized.
Preferably, the local light variation pattern comprises at least one selected from the group consisting of: stroboscopic light, light intensity variations, light color variations, and combinations of light intensity and light color variations. The local light variation pattern can detect the position of the light source from the image sequence relatively quickly.
Furthermore, the light source module and the microphone device are integrated, and the microphone control module is further connected with the light source module. After the light source module is integrated with the microphone device, the light source module can start to emit light at any time and emit a local light change mode and the like through the microphone control module.
Preferably, the pan/tilt apparatus further comprises a pan/tilt transmission module, the pan/tilt transmission module and the microphone transmission module can both acquire identification signals related to the light source, and the light source module adjusts a local light change mode of the light source according to the identification signals. The transmission module arranged in the holder can realize the function of adjusting the tracking target in the using process, namely the holder device adjusts and judges the detection rule of the light source according to the identification signal so as to track different light source modules; or the microphone control module adjusts the local light change mode of the light source module through the identification signal, so that the tracking target is formed; collision can also be avoided in the case of multiple pan/tilt/microphone devices in the same scene.
Preferably, the light source module and the microphone device are arranged separately; the cradle head device further comprises a cradle head transmission module, the cradle head transmission module and the light source transmission module can both acquire identification signals related to the light source, and the light source module adjusts the local light change mode of the light source according to the identification signals.
Furthermore, the rotating module comprises a machine body, and a placing position matched with the microphone device is arranged on the machine body; the holder power module comprises a microphone charging interface which is arranged on the placing position and matched with the microphone power module. When not using, this technical scheme's cloud platform device and microphone device can deposit as an organic whole, and cloud platform power module also can charge for the microphone power module of microphone device simultaneously.
Preferably, the cradle head device further comprises a base, the cradle head power module comprises a cradle head power input board and a cradle head charging circuit board, a microphone charging interface and a shooting device interface are arranged on the cradle head charging circuit board, the cradle head power input board is connected to the base, the cradle head charging circuit board is connected to the rotation module, and the cradle head power input board is connected with the cradle head charging circuit board through a through hole slip ring. This technical scheme is in order to realize shooting equipment's charging, thereby need set up shooting equipment interface on rotating the module and realize with shooting equipment relative fixed of position, and cloud platform power input board consequently need set up on fixed base owing to be connected with external power, in order to prevent to rotate module and base between relative motion lead to the inner line winding, set up through the via hole sliding ring and walk the line. In addition, the platform charging circuit board also can be connected with the cloud platform control module to realize the data transmission function of shooting equipment interface.
Further, the support module is including adjusting seat and regulating block, it rotates to connect on rotating the module to adjust the seat, regulating block sliding connection is at adjusting the seat, and the slip path is the arc. The support module of this technical scheme is used for spacing shooting equipment, and support module both sides can be folded and conveniently accomodate, can carry out the regulation of shooting angle simultaneously, the function of vertical upset promptly.
Furthermore, the cradle head device further comprises an external device, wherein the external device comprises an external connecting seat and an external connecting piece, the external connecting piece is rotatably connected to the external connecting seat, and the external connecting seat is connected with the cradle head device through magnetic force. Because the support module can overturn and set, the external device can have enough space to be connected on the holder device, and the magnetic connection does not need to additionally set up a connecting piece.
Preferably, a placing groove is formed in the adjusting block and used for placing shooting equipment, a convex block extends downwards from the external connection seat, and a magnet is arranged on the convex block; when adjusting the seat and rotating to the horizontality, the lug passes the standing groove and is connected with cloud platform device through magnet. The supporting module passes through the spacing shooting equipment of standing groove, and when external device connects on the cloud platform device, the standing groove can be spacing external seat downwardly extending's lug simultaneously to external device is difficult for taking place relative motion with the cloud platform device.
Preferably, the cradle head device further comprises an external device, the external device comprises an external connecting seat and an external connecting piece, the external connecting piece is rotatably connected to the external connecting seat, the external connecting seat is connected with the cradle head device through a clamping device, the clamping device comprises an elastic piece, a clamping block and a clamping groove, the clamping block is connected with the elastic piece, and the clamping block and the clamping groove are respectively arranged on the external connecting seat and the rotating module. Because the support module can overturn and set up to external device can have sufficient space to connect on the cloud platform device, and fixture block and draw-in groove cooperation can fix external device on the cloud platform device simply reliably.
Preferably, the microphone device further comprises a signal interaction module. The microphone setup interaction module may communicate or pair with other third party devices, or communicate with multiple devices simultaneously.
Compared with the prior art, the utility model have following advantage and effect:
1. the accurate tracking can be realized, sound is received while tracking is carried out, and then the input signal of the sound is transmitted into the holder device or directly transmitted into the shooting equipment;
2. the holder device can simultaneously realize the charging of the microphone device and the shooting equipment, and meanwhile, data between the holder device and the shooting equipment can also be interacted through the charging interface;
3. the supporting module is convenient to arrange and store, the operation requirement is simple, and a user can start to use the shooting device only by limiting the shooting device on the supporting module;
4. the design of external device can support different types of mobile phones, goPro, or external equipment such as a video recorder and the like to adapt to the tracking cradle head.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural view of the storage state of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a schematic structural view of the present invention in a use state.
Fig. 4 is a schematic structural diagram of the microphone device when the light source module is integrated.
Fig. 5 is a logic diagram of an internal module of the microphone device when the light source module is integrated.
Fig. 6 is a schematic diagram of the present invention combined with a mobile phone.
Fig. 7 is a side view of the present invention when adjusting the support module.
Fig. 8 is a schematic view of the external device in use.
Fig. 9 is a schematic structural view of the light source module when it is externally disposed.
Fig. 10 is a schematic view of another external device in use.
Fig. 11 is an exploded view of another external device in use.
Fig. 12 is an exploded view of another external device.
Description of reference numerals:
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Detailed Description
The present invention will be described in further detail with reference to the following examples, which are illustrative of the present invention and are not intended to limit the present invention.
The embodiment is a tracking pan/tilt head, which is used for tracking shooting of a tracking target, especially for a target needing to send out audio information. As shown in fig. 1, the tracking pan/tilt head mainly comprises four devices: cloud platform device 1, microphone device 2, light source module 3 and external device 4, cloud platform device 1, microphone device 2 and external device 4 independent separable setting in this embodiment, light source module 3 is integrated in microphone device 2.
Referring to fig. 2, the holder apparatus 1 includes a body 102, a body middle frame 103 and a base 123, a base cover 124 and a non-slip pad 125 are disposed below the base 123 to ensure that the base 123 can be stably placed, a holder power input board 121 and a holder battery 120 are fixed on the base 123, a driving motor 101 is limited between the base 123 and the body middle frame 103, an output portion of the driving motor 101 drives the body middle frame 103 to rotate, and the body middle frame 103 is externally connected to the body 102. A pan/tilt switch 104, a pan/tilt indicator lamp 105, a tracking lens 112, a pan/tilt main board 113, a pan/tilt charging circuit board 114, and a pan/tilt motor control board 119 are fixed between the machine body 102 and the machine body middle frame 103, wherein the pan/tilt main board 113 is respectively connected to the components between the machine body 102 and the machine body middle frame 103, the pan/tilt charging circuit board 114 is provided with a pan/tilt main board interface 115, a power input interface 116, a USB interface 117, and a pogo pin 118, and wires of the pan/tilt power input board 121 and the pan/tilt battery 120 are connected to the power input interface 116 through a via slip ring 122, so that the pan/tilt power input board 121 supplies power to corresponding internal or external components through the interfaces, wherein the tracking lens 112 and the pan/tilt motor control board 119 can be directly supplied with. The selection of the tracking lens 112 needs to be matched with the light source, for example, when the light source is an infrared light, the tracking lens 112 needs to have an infrared module, for example, a lens with an RGB-IR sensor, and when the light source is a visible light, the selection of the tracking lens 112 does not have much requirements, and in addition, parameters such as the frame rate of the tracking lens 112 also need to be matched with the local light variation mode, as disclosed in CN 108605081A.
With reference to fig. 2, 3, 6 and 7, a pair of supporting modules is connected to the machine body 102, each supporting module is composed of an adjusting block 106 and an adjusting seat 109, a rotating shaft of each adjusting seat 109 is connected to the machine body 102 to turn the supporting module, a through hole is formed in each adjusting seat 109, an arc-shaped waist hole 108 is formed in the lower portion of each adjusting block 106, when each adjusting block 106 is placed on each adjusting seat 109, each waist hole 108 is aligned with the through hole, a pin 110 penetrates through the through hole and is fixed on a fixing block 111 on the other side of the through hole to achieve connection between each adjusting block 106 and the corresponding adjusting seat 109, the adjusting blocks 106 can move relative to the adjusting seats 109 in the range of the waist holes 108 after connection, and after movement, the pin 110 and the waist holes 108 are positioned through friction or deformation, that. The adjusting block 106 is provided with a placing groove 107, the placing groove 107 is used for limiting the shooting equipment such as the mobile phone 6 and the tablet personal computer, the width of the placing groove 107 can be set to be 10mm so as to adapt to most thin shooting equipment, and meanwhile, the adjusting block 106 can also be made of elastic materials so as to adapt to the requirements of shooting equipment with more thicknesses. Besides the adjusting block 106 in the form of the above placing groove 107, the adjusting block can be set to be in various forms or combinations such as a clamping jaw, a magnetic seat and a supporting plate, and the connection between the adjusting seat and the adjusting block can also be set to be in a connection mode or a combined connection such as a sliding rail sliding block and magnetism.
With reference to fig. 2, 3 and 4, the body 102 is further provided with a placing position 127 for placing the microphone device 2, the shape of the placing position 127 is matched with that of the microphone device 2, and a contact point of the pogo pin 118 is arranged on the placing position 127, when the microphone device 2 is placed on the placing position 127, the charging port 205 on the microphone device 2 is in contact with the contact point of the pogo pin 118 to realize charging; besides the charging port 205, the casing of the microphone device 2 is further connected with a microphone port 201 for the microphone device 2 to acquire audio information, an audio port 202 for a user to connect with an audio device (such as an earphone), a clip 206 and a microphone switch 203 for fixing on a tracking target, a microphone indicator lamp 204 and a light source module 3, the light source module 3 may include a light emitting device of visible light, or a non-visible light band, or a combination of the two, and the light source module may also be distributed around the microphone device 2 so that the light source is not easily blocked, while the local light variation mode of the light source emitted by the light source module 3 is represented by periodical and continuous light and dark alternation, color variation, illumination intensity or a combination thereof, and the local light variation mode can detect the position of the light source in the image and form a control signal after being acquired by the tracking lens 112, specific methods can be found in CN 108605081A. Fig. 5 shows the internal structure logic of the microphone apparatus 2, wherein the microphone apparatus 2 employs a bluetooth module, because the bluetooth module has an operation function in its chip in addition to the transmission function, thereby simultaneously implementing the functions of the control module and the transmission module, the control module may employ PLC in addition to the bluetooth module, and the transmission module may employ infrared, radio frequency, wireless, etc. for transmission. The Bluetooth module is provided with a power input port and a signal input port, the power supply of the Bluetooth module transmits power through the elastic pin 118, the charging and discharging of the lithium battery and the power supply of each device are realized through power management, the Bluetooth module and an infrared lamp (light source module) are respectively supplied with power through a driving circuit, the audio information of the Bluetooth module is acquired, the signal is input through the signal input port through an MIC (microphone port 201) and is transmitted through the Bluetooth module, the specific mode is that firstly, the device needing to receive the audio information, such as a shooting device or a public device, is matched with the Bluetooth module, the Bluetooth module can transmit the audio information to the matched device after matching, and can also receive the signal of the matched device, therefore, functional keys such as matching, video recording and the like can be arranged on the microphone device 2, for example, a calling program for mobile phone video recording is stored in the Bluetooth module in advance, when the microphone device 2 is matched with the mobile phone 6 on the tripod, the cradle head device 1 may also acquire a corresponding signal through the USB interface 117 connected to the mobile phone 6 or by adding a cradle head transmission module, and then start the cradle head device. In addition, the bluetooth module is further provided with a light source control (e.g., frequency control) function, the local light change mode of the light source module 3 can be adjusted at any time through the identification signal of the paired device, and the pan/tilt apparatus 1 can also adjust the light source to be detected correspondingly by connecting the USB interface 117 of the mobile phone 6 or adding a pan/tilt transmission module to acquire a corresponding identification signal, wherein one implementation manner is as follows: the mobile phone 6 transmits the identification signal (such as modified frequency) to the cradle head main board 113 through the USB interface 117 or the added cradle head transmission module, the cradle head main board 113 detects the light source with the same frequency as the identification signal, the cradle head main board 113 transmits the identification signal to the bluetooth module through the cradle head transmission module, and the bluetooth module adjusts the change frequency of the light source module 3 according to the identification signal. The bluetooth module can be further provided with signal interaction control, interaction is realized by a radio frequency mode, identification of a plurality of microphone devices 2 can be realized, and then the holder device 1 is enabled to distinguish different microphone devices 2 through radio frequency signals, so that the tracking process can be conveniently performed with operations such as target adjustment and local light mode adjustment.
Combine fig. 2 and 8, external device 4 comprises external piece 401 and external connection seat 402, external piece 401 rotates through knob 405 and connects on external connection seat 402, external piece 401 can set the screw thread form connector, thereby the adaptation is like the camera, the placing of shooting equipment such as video cassette holder, and external connection seat 402 is the bar, extend lug 403 below the external connection seat 402 that is close to both sides, be equipped with magnet 404 on the lug 403, when adjusting seat 109 level placement, realize spacingly in lug 403 can putting into standing groove 107, magnet 404 adsorbs realizes external device 4's convenient connection on organism 102 simultaneously. In addition to the above magnetic connection manner, the external device 4 and the holder device 1 may be connected by a fastening device 7, as shown in fig. 10 to 12, two ends of the external base 402 are rotatably connected with a fixture block 702, a torsion spring 701 for resetting and maintaining the fixture block state is disposed between the fixture block 702 and the external base 402, a clamping groove 703 matched with the fixture block 702 is disposed outside the machine body 102, a user applies force to an upper portion of the fixture block 702 to open a lower portion of the fixture block 702 and align with the clamping groove 703, and the user resets the fixture block 702 by the torsion spring 701 to clamp the fixture block 703 after releasing his hand. In addition, the positions of the clamping block and the clamping groove in the clamping device can be arranged at different positions of the external connecting seat and the rotating module, such as the middle positions of the external connecting seat and the rotating module, the positions of the clamping block and the clamping groove can be interchanged, and the elastic piece can also adopt other structures such as a spring piece.
In addition to the above-described embodiments, the light source module 3 may be separately disposed from the microphone device 2, for example, a bracelet 5 shown in fig. 9 may be made, or various forms such as a badge, a bow tie or a pendant may be made, as long as a local light change mode is preset in the light source module 3, or the light source control module and the light source transmission module may be added to the apparatus to implement the scheme in the above-described embodiments; or an interface of the light source module 3 is reserved on the holder device 1 or the microphone device 2, and even if the light source control module and the light source transmission module are not arranged, information such as the identification signal can be transmitted to the light source module 3 through the interface. When light source module 3 and microphone device 2 separation set up, need set up on same pursuit target during the use, if let the user wear microphone device 2 and bracelet 5 simultaneously to guarantee the relative position of microphone device 2 and light source module 3 in certain extent, thereby guarantee the accuracy degree of pursuing.
Besides the above-described embodiments, the rotational mode of the pan/tilt apparatus 1 can also be adjusted to a mode combining vertical turning or horizontal turning with turning in other directions, and the change of the rotational mode can be realized by adjusting the number of motors or the transmission direction according to specific application scenarios.
In addition, it should be noted that the specific embodiments described in the present specification may differ in the shape of the components, the names of the components, and the like. All equivalent or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (12)
1. The utility model provides a cloud platform is tracked to microphone based on light source which characterized in that: the device comprises a holder device, a microphone device and a light source module, wherein the holder device and the microphone device are arranged in a separable mode, and the light source module and the microphone device are arranged in an integrated mode or the light source module and the microphone device are arranged in a separable mode and are arranged on the same tracking target when in use;
the holder device comprises a driving module, a rotating module, a supporting module, a tracking lens, a holder control module and a holder power module for supplying power to the holder device, wherein the driving module is connected with and drives the rotating module, the supporting module and the tracking lens are connected to the rotating module, the holder control module is connected with the driving module and the tracking lens, and the tracking lens is used for acquiring a light source with a local light variation mode;
the microphone device comprises a microphone control module, a signal input module, a microphone transmission module and a microphone power supply module for supplying power to the microphone device, wherein the microphone control module is connected with the signal input module and the microphone transmission module, and the signal input module is connected with the microphone transmission module;
the light source module is used for emitting a light source with a local light change mode.
2. The light source-based microphone tracking pan-tilt head of claim 1, wherein: the local light variation pattern comprises at least one selected from the group consisting of: stroboscopic light, light intensity variations, light color variations, and combinations of light intensity and light color variations.
3. The light source-based microphone tracking pan-tilt head of claim 1, wherein: the light source module and the microphone device are arranged in an integrated mode, and the microphone control module is further connected with the light source module.
4. A light source based microphone tracking pan/tilt head as claimed in claim 3, wherein: the holder device further comprises a holder transmission module, the holder transmission module and the microphone transmission module can both acquire identification signals related to the light source, and the light source module adjusts the local light change mode of the light source according to the identification signals.
5. The light source-based microphone tracking pan-tilt head of claim 1, wherein: the light source module and the microphone device are arranged in a separable way; the cradle head device further comprises a cradle head transmission module, the cradle head transmission module and the light source transmission module can both acquire identification signals related to the light source, and the light source module adjusts the local light change mode of the light source according to the identification signals.
6. The light source-based microphone tracking pan-tilt head of claim 1, wherein: the rotating module comprises a machine body, and a placing position matched with the microphone device is arranged on the machine body; the holder power module comprises a microphone charging interface which is arranged on the placing position and matched with the microphone power module.
7. The light source-based microphone tracking pan-tilt head of claim 6, wherein: the cradle head device further comprises a base, the cradle head power supply module comprises a cradle head power input board and a cradle head charging circuit board, a microphone charging interface and a shooting equipment interface are arranged on the cradle head charging circuit board, the cradle head power input board is connected to the base, the cradle head charging circuit board is connected to the rotating module, and the cradle head power input board is connected with the cradle head charging circuit board through a through hole slip ring.
8. The light source-based microphone tracking pan-tilt head of claim 1, wherein: the support module is including adjusting seat and regulating block, it rotates to connect on rotating the module to adjust the seat, regulating block sliding connection is at adjusting the seat, and the slip path is the arc.
9. A light source based microphone tracking pan/tilt head as claimed in claim 8, wherein: still include external device, external device includes external connection seat and external piece, the external piece rotates to be connected on the external connection seat, the external connection seat passes through magnetic force and is connected with the cloud platform device.
10. A light source based microphone tracking pan/tilt head as claimed in claim 9, wherein: the adjusting block is provided with a placing groove used for placing shooting equipment, the external connection seat extends downwards to form a convex block, and the convex block is provided with a magnet; when adjusting the seat and rotating to the horizontality, the lug passes the standing groove and is connected with cloud platform device through magnet.
11. A light source based microphone tracking pan/tilt head as claimed in claim 8, wherein: still include external device, external device includes external seat and external piece, the external piece rotates to be connected on the external seat, be connected through buckle device between external seat and cloud platform device, buckle device includes elastic component and matched with fixture block and draw-in groove, the fixture block is connected to the elastic component, fixture block and draw-in groove set up respectively on external seat and rotation module.
12. The light source-based microphone tracking pan-tilt head of claim 1, wherein: the microphone device further comprises a signal interaction module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921309038.1U CN210351528U (en) | 2019-08-13 | 2019-08-13 | Cloud platform is tracked to microphone based on light source |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921309038.1U CN210351528U (en) | 2019-08-13 | 2019-08-13 | Cloud platform is tracked to microphone based on light source |
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| CN210351528U true CN210351528U (en) | 2020-04-17 |
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