CN208971778U - Wearable device - Google Patents

Wearable device Download PDF

Info

Publication number
CN208971778U
CN208971778U CN201822037323.4U CN201822037323U CN208971778U CN 208971778 U CN208971778 U CN 208971778U CN 201822037323 U CN201822037323 U CN 201822037323U CN 208971778 U CN208971778 U CN 208971778U
Authority
CN
China
Prior art keywords
wearable device
sound
sound collection
acquisition module
shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201822037323.4U
Other languages
Chinese (zh)
Inventor
张利明
刘人锋
陈飞
杨松帆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Century TAL Education Technology Co Ltd
Original Assignee
Beijing Century TAL Education Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Century TAL Education Technology Co Ltd filed Critical Beijing Century TAL Education Technology Co Ltd
Priority to CN201822037323.4U priority Critical patent/CN208971778U/en
Application granted granted Critical
Publication of CN208971778U publication Critical patent/CN208971778U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Electrically Operated Instructional Devices (AREA)

Abstract

The utility model embodiment provides a kind of wearable device comprising: shell, direct sound acquisition module, mounting assembly;The direct sound acquisition module is arranged in the shell, and the mounting assembly is connected to outside the shell;For the wearable device to be configured at sound collection position, the direct sound acquisition module is used to the sound collection position be to carry out sound collection with reference to along directional angle the mounting assembly.When carrying out network-based classroom instruction, direct sound acquisition module can only acquire it and wear the sound that user issues, and avoid the noise jamming of other sound sources in classroom.So the wearable device can be realized the clear sound for collecting each user under noisy classroom environment, so that the online class sound interaction of academics and students is realized, to obtain each student to mastery of knowledge degree, to provide more targeted teaching.

Description

Wearable device
Technical field
The utility model embodiment is related to teaching equipment technical field more particularly to a kind of wearable device.
Background technique
In traditional education activities, usually all it is to use teacher and student face-to-face, explanation teaching is carried out by teacher.? In this education activities, since Faculty and Students give lessons face-to-face, so as to place to operate schools, teacher's time and student's time and Stranger's number etc. has larger limitation.
With the development of Internet technology and mobile communication technology, the Web-based instruction starts prevailing.Carry out Learning Activity When, Faculty and Students can carry out audio-video exchange by network, and then complete teaching process.When carrying out the Web-based instruction, religion Teacher and student can carry out recorded broadcast teaching, that is, prerecord instructional video, and student can be by watching instructional video It practises.But the interactivity of this teaching is poor, is unfavorable for the learning initiative of mobilizing students, and teacher interact link be difficult it is clear The sound feedback for being collected into each student so that teacher is difficult to obtain learning efficiency and of each student in classroom Practise result.
Generally speaking, in existing network teaching process, lack the dress for efficiently collecting the sound feedback information of each student It sets and system, is unfavorable for providing more targeted teaching for each student.
Utility model content
In view of this, one of the technical issues of the utility model embodiment is solved is to provide a kind of wearable device, To overcome the interactive difference of the Web-based instruction in the prior art and can not effectively obtain each student to mastery of knowledge degree The problem of.
The utility model embodiment provides a kind of wearable device comprising: shell, direct sound acquisition module, installation Component, direct sound acquisition module are arranged in shell, and mounting assembly is connected to outside shell;Mounting assembly by wearable for setting It is standby to be configured at sound collection position, direct sound acquisition module be used for be with sound collection position with reference to along directional angle into Row sound collection.
Optionally, sound collection hole, the position of sound collection hole and the position of direct sound acquisition module are provided on shell It sets corresponding.
Optionally, the connection of mounting assembly and shell is non-dismountable connection, or is detachably connected.
Optionally, mounting assembly includes: pedestal, clamping part, and pedestal is connected on shell, and clamping part is connect with pedestal, Wearable device to be configured at sound collection position.
Optionally, clamping part includes: gripper-arm, torsional spring, connecting shaft, and connecting shaft is arranged on the base, and gripper-arm passes through company Spindle is connect with pedestal, and torsional spring is set in outside connecting shaft, and between gripper-arm and pedestal, and gripper-arm can be driven with respect to base Seat rotation, wearable device is configured at sound collection position.
Optionally, torsional spring includes the first torque arm and the second torque arm, and the first torque arm is connected on shell, and the second torque arm is connected to In gripper-arm, wearable device is configured at sound collection position.
Optionally, direct sound acquisition module includes: direct sound acquisition unit and processing unit;Direct sound acquisition Unit is connect with processing unit, and direct sound acquisition unit is used to sound collection position be with reference to along directional angle carry out sound Sound acquisition generates analog audio data, and analogue audio frequency is sent to processing unit and carries out data processing.
Optionally, direct sound acquisition unit includes shotgun microphone.
Optionally, processing unit includes: audio digital processing device, and audio digital processing device is used to turn analog audio data It is changed to digital audio-frequency data.
Optionally, processing unit further includes coding processing device, and coding processing device is connect with audio digital processing device, for connecing The digital audio-frequency data that audio digital processing device is sent is received, and digital audio-frequency data is encoded.
Optionally, wearable device further include: data transmission module, data transmission module and direct sound acquisition module connect It connects, and sends the audio data of direct sound acquisition module acquisition by dedicated network.
Optionally, data transmission module includes 2.4G dedicated network wireless communication module.
By above technical scheme as it can be seen that the wearable device includes: shell, direct sound acquisition module, mounting assembly;Institute It states direct sound acquisition module to be arranged in the shell, the mounting assembly is connected to outside the shell;The mounting assembly For the wearable device to be configured at sound collection position, the direct sound acquisition module with the sound for being adopted Collecting position is to carry out sound collection with reference to along directional angle.When carrying out network-based classroom instruction, direct sound acquisition module can The sound that user issues is worn only to acquire it, avoids the noise jamming of other sound sources in classroom.So the wearable device It can be realized the clear sound that each user is collected under noisy classroom environment, to realize the online class of academics and students Sound interaction, to obtain each student to mastery of knowledge degree, to provide more targeted teaching.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is that some embodiments recorded in the utility model embodiment for those of ordinary skill in the art can also be according to this A little attached drawings obtain other attached drawings.
Fig. 1 shows the schematic perspective view of the wearable device of the utility model;
Fig. 2 shows the side structure schematic views of the wearable device of the utility model;
Fig. 3 shows the structural block diagram of the direct sound acquisition module of the wearable device of the utility model;
Fig. 4 shows the structural schematic diagram of the smart classroom system of the utility model.
Description of symbols:
101, shell;102, mounting assembly;103, direct sound acquisition module;111, sound collection hole;112, pedestal; 122, clamping part;1221, gripper-arm;1222, torsional spring;1223, connecting shaft;113, audio digital processing device;123, coded treatment Device;133, direct sound acquisition unit;143, first data transmission module;153, control unit;163, power supply module;1631, Battery management unit;1632, battery unit;173, near-field communication module;183, storage unit;193, indicating unit;100, may be used Wearable device;200, data sink;300, server.
Specific embodiment
Certainly, any technical solution for implementing the utility model embodiment must be not necessarily required to that reaching above simultaneously owns Advantage.
In order to make those skilled in the art more fully understand the technical scheme in the embodiment of the utility model, below in conjunction with this Attached drawing in utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, shows So, described embodiment is only the utility model embodiment a part of the embodiment, instead of all the embodiments.Based on this reality With the embodiment in new embodiment, this is all should belong in those of ordinary skill in the art's every other embodiment obtained The range of utility model embodiment protection.
Further illustrate that the utility model embodiment implements below with reference to the utility model embodiment attached drawing.
As depicted in figs. 1 and 2, according to the present embodiment, which may include shell 101, mounting assembly 102, direct sound acquisition module (being not shown in Fig. 1 and Fig. 2).
Direct sound acquisition module is arranged in shell 101, and to be installed, be fixed by shell 101, direct sound is adopted Collect the sound that module is used for oriented acquisition a direction, to reduce the interference sound in collected voice data.A kind of feasible side In formula, sound collection hole 111, while the position of sound collection hole 111 are provided on the shell 101 of the wearable device 100 It is corresponding with the position of direct sound acquisition module, so that the acquisition direction of direct sound acquisition module and sound collection hole 111 is corresponding, and the sound for propagating the central axis direction along or approximately along sound collection hole 111 is directed sound acquisition module It collects.
Mounting assembly 102 is connected to outside shell 101, and wearable device 100 is configured at sound collection position, thus So that direct sound acquisition module is to adopt with reference to along the directional angle progress sound towards sound source with sound collection position Collection.
Optionally, when the wearable device 100 is applied in classroom instruction scene, wearable device 100 is worn on The neckline of user (student or teacher), direct sound acquisition module configure on the wearing position, and direct sound acquires mould The sound collection direction of block is towards sound source, so that acquisition is reference with the wearing position, along the sound collection direction of orientation, and one Determine the sound in angle, for example student or teacher participate in the sound of classroom interaction (such as answering a question).Since direct sound is adopted Collect direction of the module towards sound source, and the sound within the scope of direction certain angle can be acquired, so as to as far as possible Ground avoids the influence of noise of surrounding, can sufficiently collect the sound from the student or teacher for wearing the wearable device 100 Sound reduces interference sound in sound to help to promote the sound quality acquired, so that the subsequent sound using acquisition is divided When analysing determining student to mastery of knowledge degree, determining result is more accurate, and then provides more targetedly for student accordingly Teaching so that classroom interaction result is more preferable.
Further, for for above sound acquisition hole 111, since shell 101 itself can cause centainly sound Decaying, in order to reduce the intensity of unwanted interference sound, and guarantee to need the intensity of sound that acquires, to guarantee direct sound The sound quality of acquisition module acquisition, corresponds on shell 101 and opens up sound collection hole on the position of direct sound acquisition module 111, make that the sound acquired is needed to be easier to be transmitted on direct sound acquisition module.It certainly, can according to the difference of noise circumstance Adaptively to carry out the configuration of sound collection hole 111.For example in the biggish environment of noise, an individual sound collection is set Hole 111 reduces the acquisition range of sound, avoids collecting more noises;For another example, in the lesser environment of noise, referring to figure 2, which, which acquires hole 111, to be multiple holes, thus increase the acquisition range of sound, it is as much as possible to collect use The sound at family.
Optionally, wearable device 100 is being configured to sound collection position by the mounting assembly 102 of the wearable device 100 When setting place, the direction of sound collection hole 111 can be adjusted by adjusting the mode of 100 wearing position of wearable device, with amendment The directional angle of direct sound acquisition module progress sound collection.Such as, which is pacified by mounting assembly 102 Mounted in the neckline of user, sound collection hole 111 is adjusted towards the direction of user's mouth.
According to the different needs, the connection of the mounting assembly 102 of the wearable device 100 and shell 101 can be for can not Dismantling connection, or be detachably connected, it only needs that wearable device 100 sound collection position can be fixed on. It is connected using non-removable mode so that the cooperation between mounting assembly 102 and shell 101 is stronger, using dismountable Mode connects so that mounting assembly 102 and the dismounting and change of shell 101 are more convenient.
Realize the mode such as mounting assembly 102 and shell 101 of the non-dismountable connection of mounting assembly 102 and shell 101 Between bonded.Realize mounting assembly 102 and 101 detachable connection method of shell such as mounting assembly 102 and shell 101 into Row threaded connection, lock connection, grafting etc..
Optionally, mounting assembly 102 can be the structure of paper clip, the structure of clip, the magnet to attract each other and form Structure or button-shaped structure etc..
For example, being illustrated so that the wearable device 100 is a kind of clip structure as an example in the present embodiment.The installation group Part 102 specifically includes pedestal 112 and clamping part 122, and pedestal 112 is connected on shell 101, and clamping part 122 and pedestal 112 connect It connects, and can be moved with respect to shell 101, wearable device 100 is configured at sound collection position.
Further, in this embodiment clamping part 122 may include gripper-arm 1221, torsional spring 1222 and connecting shaft 1223, Connecting shaft 1223, which is arranged on pedestal 112, such as to be penetrated in the hole on pedestal 112, gripper-arm 1221 by connecting shaft 1223 with Pedestal 112 connects, and torsional spring 1222 is set in outside connecting shaft 1223, and between gripper-arm 1221 and pedestal 112, and can be driven 1221 opposite base 112 of gripper-arm rotation, so that gripper-arm 1221 can be moved with respect to shell 101, so that realizing will be wearable Equipment 100 is clamped on fixture (such as collar), is configured to it at sound collection position;Or realize that gripper-arm 1221 is beaten It opens, separates wearable device 100 with fixture.
Further, in this embodiment gripper-arm 1221 can be smooth long plate structure, cyclic structure, stick-like structure etc.; When the wearable device 100 configuration is at user's neckline, because smooth long plate structure can be tighter with the shape of user's collar Close fitting, so the wearable device 100 can utmostly be reduced on user in sensorial influence, to realize nothing Perceive sound collection.
Specifically, through-hole, and the diameter in the hole and connecting shaft 1223 are respectively arranged in pedestal 112 and gripper-arm 1221 Diameter be adapted so that connecting shaft 1223 pass through pedestal 112 and gripper-arm 1221 through-hole, to realize 112 He of pedestal The connection of gripper-arm 1221.
Specifically, the interior diameter of 1222 main body of torsional spring and the diameter of connecting shaft 1223 are adapted, to be set in connecting shaft On 1223.At the same time, the torque arm of torsional spring 1222 is connect with gripper-arm 1221 and pedestal 112 respectively.
It further, is the connection for realizing mounting assembly 102 and shell 101, the setting of pedestal 112 is located proximate to shell 101 one end, at the same time, torsional spring 1222 apply the driving force that opposite base 112 rotates to gripper-arm 1221, so that gripper-arm 1221 are intended to the other end close to shell 101, so that the wearable device 100 is fixed on sound collection position such as neckline On some position.
Specifically, torsional spring 1222 may include the first torque arm (not shown) and the second torque arm (not shown), and One torque arm is connected on shell 101, and the second torque arm is connected in gripper-arm 1221, and is located at the same side of 1222 main body of torsional spring, Alternatively, the two sides of torsional spring 1222 are arranged in the first torque arm and the second torque arm, to guarantee that torsional spring 1222 applies phase to gripper-arm 1221 To the driving force that pedestal 112 rotates, so that gripper-arm 1221 is intended to the other end close to shell 101.
Above-mentioned Fig. 1 and Fig. 2 is that the structure of the wearable device 100 illustrates, referring to following Fig. 3, below to its circuit structure It illustrates.
In the present embodiment, the main circuit structure of the wearable device 100 is direct sound acquisition module 103 comprising: Direct sound acquisition unit 133 and processing unit, direct sound acquisition unit 133 are connect with processing unit;Direct sound is adopted Collect unit 133 and is used to be to carry out user voice acquisition with reference to along directional angle, and generate analogue audio frequency with sound collection position Analogue audio frequency is further sent to processing unit and carries out data processing by data.Specifically, which determines It is integrated in a 6-layer circuit board to sound acquisition module 103, effectively reduces the size and weight of the wearable device 100; To which reducing wearable set at work influences the feeling of user, noninductive under noisy classroom environment to realize Know sound collection.
Specifically, direct sound acquisition unit 133 can be shotgun microphone.The primary structure packet of the shotgun microphone It includes: sound hole and multiple apertures on PCB (Printed Circuit Board, printed circuit board) is set, sound is from sound hole Enter inside shotgun microphone with the aperture on PCB.It is adopted by 0 degree of sound of shotgun microphone of the sound hole direction of microphone Collect direction, shotgun microphone is to the acoustic sensitivity highest in 0 degree of sound collection direction, to the sound in 180 degree sound collection direction Sensitivity is minimum.
In the present embodiment, processing unit may include audio digital processing device 113, and audio digital processing device 113 is used for will Analog audio data is converted to digital audio-frequency data.Further, improve the sound quality of acquisition sound to eliminate noise, disappear back Sound, disappear feedback etc., can be further optimized processing to digital audio-frequency data, for example, the optimization processing pass through it is a series of adjustable Humorous algorithm is realized.
Further, it is such as single-chip microcontroller, coding processing device that it is specific, which can also to include coding processing device 123, for processing unit 123 connect with audio digital processing device 113, to receive the digital audio data file of the transmission of audio digital processing device 113;And It is integrated with coding and decoding module in coding processing device 123, which can be encoded and/or be pressed Contracting, so that the coding and/or the transmission of compressed digital audio data file are convenient, fast.
The wearable device 100 can also include first data transmission module 143, first data transmission module 143 and fixed It is connected to sound acquisition module 103, which sends direct sound acquisition module by dedicated network The digital audio-frequency data of 103 acquisitions.
Further, first data transmission module 143 can be 2.4G dedicated network wireless communication module.The 2.4G is dedicated Multi-network wireless communications module can use microstrip antenna, in specific setting, can be integrated in PCB circuit board surface, thus Reduce occupancy volume, saves space.
Specifically, first data transmission module 143 is connect with coding processing device 123, according to the order of coding processing device 123 Carry out the transmission of data and/or the reception of data.Wherein, data can also include other than including above-mentioned digital audio-frequency data The control instruction etc. of server.
In addition, the wearable device 100 can also include: indicating unit 193, indicating unit 193 is connect with processing unit; The specific indicating unit 193 is such as LED light, is used to indicate the operating status of the wearable device 100.
Further, in this embodiment the wearable device 100 can also include: near-field communication module 173, near field is logical Letter module 173 is connect with processing unit;The near-field communication module 173 is such as NFC module, for carrying out near field with other equipment Communication.
Further, in this embodiment the wearable device 100 can also include: storage unit 183, storage unit 183 It is connect with processing unit, for storing the data of the wearable device 100.Such as digital audio-frequency data.
Further, in this embodiment the wearable device 100 can also include: control unit 153, control unit 153 It is connect with processing unit, for controlling the starting and closing of the wearable device 100.Specifically, which is such as Key, contact switch, Touch Screen etc..
Further, in this embodiment the wearable device 100 can also include: power supply module 163, with processing unit Connection, for providing electric energy for the wearable device 100;Wherein, which includes battery management unit 1631, electricity Pool unit 1632, charging interface, battery management unit 1631 are connect with processing unit, battery unit 1632, charging interface respectively, For controlling the charging and discharging of battery unit 1632;Specifically, the charging interface is using electric shock charge port, compared to micro- Usb interface, structure is simple, occupies small in size, saving inner space;The battery unit 1632 uses lithium battery, occupies empty Between it is small, battery capacity is big, so that the wearable device 100 realizes prolonged sound collection.
As shown in figure 4, providing a kind of smart classroom system comprising several above-mentioned wearable devices 100.
The smart classroom system uses wearable device 100 to collect the sound that student generates for progress classroom interaction, example Such as: student is inscribed by audio inquiry pronunciation exercises and/or sound when multiple-choice question, makes student can be with during classroom instruction Teacher carries out voice interface, and furthermore teacher can obtain the study schedule and acquisition of knowledge journey of each student according to the sound of student Degree.
Optionally, in the present embodiment, smart classroom system can also include server 300, and server 300 is set with wearable Standby 100 can communicate to connect, and carry out the transmission of data and/or the reception of data.Server 300 can be from each wearable device 100 Obtain any data of including but not limited to digital audio-frequency data;At the same time, server 300 can also orient wearable device 100 send data, as server 300 sends starting at least one wearable device 100 and/or stops the control of acquisition sound Instruction etc..The sound of the wearable device 100 acquisition stores real-time synchronization to server 300 in the server 300.
Further, wearable device 100 according to control instruction acquire sound, but ought within the set time, in 15s, It is not received by control instruction, then enters standby mode.
Optionally, in the present embodiment, smart classroom system further includes data sink 200, data sink 200 and service Device 300, wearable device 100 communicate to connect, and carry out data transmission and/or data receiver.Wherein, data sink 200 wraps Include: processor, the second data transmission module, third data transmission module, processor respectively with the second data transmission module, third Data transmission module connection, processor is communicated to connect by the second data transmission module and wearable device 100, and carries out data Transmission and/or data receiver;Processor is communicated to connect by third data transmission module and server 300, and carries out data hair It send and/or data receiver.Specifically, the second data transmission module is such as 2.4G dedicated network wireless communication module, and can be worn The first data transmission module for wearing equipment 100 carries out data transmission and/or data receiver.Third data transmission module is such as USB interface is connect with the USB interface of server 300, to carry out data transmission and/or data receiver.
Optionally, the data sink 200 of smart classroom system can also include near-field communication module, near-field communication module It is connect with processor, for carrying out near-field communication with the wearable device 100, to realize that data sink 200 is set with wearable Standby 100 automatic matching.
Further, server 300 carries out all users according to the identity information of each user and the information of pairing Identity binding.And the data sink 200 is also used to be managed wearable device 100.
It may be noted that all parts described in the utility model embodiment/step can be split according to the needs of implementation For more components/steps, the part operation of two or more components/steps or components/steps can also be combined into new portion Part/step, to realize the purpose of the utility model embodiment.
Embodiment of above is merely to illustrate the utility model embodiment, and not to the limit of the utility model embodiment System, those of ordinary skill in related technical field, in the case where not departing from the spirit and scope of the utility model embodiment, also It can make a variety of changes and modification, therefore all equivalent technical solutions also belong to the scope of the utility model embodiment, this The scope of patent protection of utility model embodiment should be defined by the claims.

Claims (12)

1. a kind of wearable device characterized by comprising
Shell, direct sound acquisition module, mounting assembly, the direct sound acquisition module is arranged in the shell, described Mounting assembly is connected to outside the shell;The mounting assembly is used to the wearable device being configured to sound collection position Place, the direct sound acquisition module are used to the sound collection position be to carry out sound collection with reference to along directional angle.
2. wearable device according to claim 1, which is characterized in that be provided with sound collection hole, institute on the shell The position for stating sound collection hole is corresponding with the position of the direct sound acquisition module.
3. wearable device according to claim 1, which is characterized in that the mounting assembly and the connection of the shell are Non-dismountable connection, or be detachably connected.
4. wearable device according to claim 1, which is characterized in that the mounting assembly includes: pedestal, clamping part, The pedestal connects on the housing, and the clamping part is connect with the pedestal, and the wearable device is configured to At the sound collection position.
5. wearable device according to claim 4, which is characterized in that the clamping part includes: gripper-arm, torsional spring, company Spindle, the connecting shaft are arranged on the pedestal, and the gripper-arm is connect by the connecting shaft with the pedestal, the torsion Spring is set in outside the connecting shaft, and between the gripper-arm and the pedestal, and the gripper-arm can be driven with respect to institute Pedestal rotation is stated, the wearable device is configured at the sound collection position.
6. wearable device according to claim 5, which is characterized in that the torsional spring includes that the first torque arm and second are turned round Arm, first torque arm abut on the housing, and second torque arm is connected in the gripper-arm, will be described wearable Device configuration is at the sound collection position.
7. wearable device according to claim 1, which is characterized in that the direct sound acquisition module includes: orientation Sound collection unit and processing unit;The direct sound acquisition unit is connect with the processing unit, the direct sound Acquisition unit is used to the sound collection position be to carry out sound collection with reference to along directional angle, generates analog audio frequency According to, and the analogue audio frequency is sent to the processing unit and carries out data processing.
8. wearable device according to claim 7, which is characterized in that the direct sound acquisition unit includes orientation wheat Gram wind.
9. wearable device according to claim 8, which is characterized in that the processing unit includes: audio digital processing Device, the audio digital processing device are used to analog audio data being converted to digital audio-frequency data.
10. wearable device according to claim 9, which is characterized in that the processing unit further includes coding processing device, The coding processing device is connect with the audio digital processing device, the digital sound sent for receiving the audio digital processing device Frequency evidence, and the digital audio-frequency data is encoded.
11. wearable device according to claim 1, which is characterized in that the wearable device further include:
Data transmission module, the data transmission module are connect with the direct sound acquisition module, and are sent out by dedicated network Send the audio data of the direct sound acquisition module acquisition.
12. wearable device according to claim 11, which is characterized in that the data transmission module includes 2.4G dedicated Multi-network wireless communications module.
CN201822037323.4U 2018-12-05 2018-12-05 Wearable device Active CN208971778U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822037323.4U CN208971778U (en) 2018-12-05 2018-12-05 Wearable device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822037323.4U CN208971778U (en) 2018-12-05 2018-12-05 Wearable device

Publications (1)

Publication Number Publication Date
CN208971778U true CN208971778U (en) 2019-06-11

Family

ID=66766172

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822037323.4U Active CN208971778U (en) 2018-12-05 2018-12-05 Wearable device

Country Status (1)

Country Link
CN (1) CN208971778U (en)

Similar Documents

Publication Publication Date Title
CN101170325A (en) Bluetooth wireless microphone
CN109348358B (en) Sound box system, sound box base and sound playing method
CN208971778U (en) Wearable device
CN105913721A (en) Wind music auxiliary training device
CN104735609A (en) Quick answering interactive method and system
CN206261712U (en) A kind of cervical vertebra shoulder channels and collaterals hot compress bluetooth physiotherapy equipment
CN210955551U (en) Novel memory type hearing training equipment based on french teaching
CN201134803Y (en) Bluetooth wireless microphone
RU179098U1 (en) RADIOMIKROPHON "SONNET-RSM" FOR PERSONS WITH DISTURBANCES OF HEARING AND SPEECH FUNCTIONS
CN207460472U (en) A kind of radio system of ear barrier person
CN209084458U (en) A kind of outdoor portable acousto-optic-electric night exercising system
CN206833630U (en) Wireless self generating door bell
CN208285478U (en) A kind of music frequency spectrum display device
CN113363762A (en) Split intelligent voice socket
CN208939628U (en) Mobile device ancillary equipment and smart classroom system
CN214959721U (en) Classroom monitoring management equipment based on smart campus
CN212211354U (en) Special earphone of four six grades of examinations of college english
CN215935107U (en) Wireless networking of radio station simulator
WO2019238037A1 (en) Hand-held control apparatus and pair of multi-functional glasses
CN206167808U (en) Intelligent racket
KR200424413Y1 (en) Wireless Amplifier Using Bluetooth for Lecture
CN208445707U (en) Wireless microphone is used in a kind of teaching
CN205902013U (en) Earphone suitable for square dancer wear
CN215528030U (en) Split intelligent voice socket
CN212278428U (en) Special multi-functional earmuff of epidemic prevention

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant