CN207869262U - Intelligent radio video talk-back door bell - Google Patents
Intelligent radio video talk-back door bell Download PDFInfo
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- CN207869262U CN207869262U CN201721905587.6U CN201721905587U CN207869262U CN 207869262 U CN207869262 U CN 207869262U CN 201721905587 U CN201721905587 U CN 201721905587U CN 207869262 U CN207869262 U CN 207869262U
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Abstract
The utility model is related to wireless electronic product fields, and in particular to intelligent radio video talk-back door bell, including be installed on outdoor outdoor unit, be installed on indoor indoor unit, it is wirelessly connected between indoor unit and outdoor unit；The outdoor unit includes shell, is installed on the button for being used to obtain fingerprint of surface of shell and shows the display screen of video information, it is installed on camera of the surface of shell for obtaining field data, it is installed on sound transducer of the surface of shell for voice input, it is installed on finger print information of the enclosure interior for obtaining to button, the screen information obtained to camera, the central processing unit handled the audio-frequency information that sound transducer obtains, further include the wireless communication apparatus with indoor unit and bracelet machine, for the loudspeaker of back sound information and outdoor for electric installation.The utility model intelligence degree is high, information collection precision is high, information transfer rate is fast, safe, functional diversities.
Description
Technical field
The utility model is related to wireless electronic product fields, more particularly to intelligent radio video talk-back door bell.
Background technology
With the development and the improvement of people's living standards of society, the application of video doorbell system is more and more extensive.Tradition
Wired video doorbell system generally include outdoor unit and indoor unit, the cable that indoor unit and outdoor unit pass through profession carries out signal
Transmission and interaction, and indoor unit is typically mounted on the fixed position in room, installation and safeguard it is extremely inconvenient.It is existing wirelessly
Become hot topic depending on doorbell, module carries out the transmission and interaction of AV signal by radio communication.But existing skill on the one hand,
The information collection precision and transmission speed of the radio visual doorbell of art are to be improved.Second aspect only has and reminds user someone
Visiting effect, function is more single, and intelligence degree is low.
Utility model content
To solve the above problems, the utility model provides, a kind of intelligence degree is high, information collection precision is high, information transmission
Fast, safe, functional diversities the intelligent radio video talk-back door bell of speed.
Technical solution used by the utility model is：Intelligent radio video talk-back door bell, including it is installed on outdoor
Outdoor unit, be installed on indoor indoor unit, be wirelessly connected between the indoor unit and outdoor unit；The outdoor unit includes shell
Body, the button for being used to obtain fingerprint for being installed on surface of shell and the display screen for showing video information, are installed on surface of shell use
In the camera for obtaining field data, it is installed on sound transducer of the surface of shell for voice input, is installed on enclosure interior
Finger print information for being obtained to button, the screen information that camera is obtained, the audio-frequency information that sound transducer is obtained into
The central processing unit of row processing further includes being set in shell for will treated that information feeds back to interior through central processing unit
The wireless communication apparatus of machine and bracelet machine, the loudspeaker for back sound information and the outdoor for power supply are for electric installation.
To being further improved as the indoor unit includes being used for main body, is set in main body and is used for for above-mentioned technical proposal
The information receiving unit and information processing component for receiving and handling information are connected to information processing component for storing up stored storage
Component is deposited, display module of the processing component for showing information and the remote control module for being remotely controlled are connected to, further includes connecting
Be connected to processing component for power supply indoor power supply device；The display module is TV or tablet.
To being further improved as the wireless communication apparatus includes wifi signal amplifier and wifi for above-mentioned technical proposal
Wireless router, the wifi signal amplifier are wirelessly connected in information receiving unit.
Include being connect for the input of information input to being further improved as, the central processing unit for above-mentioned technical proposal
Mouthful, be connected to input interface for store up stored storage element, be connected to storage element for handle information processing unit,
Be connected to processing unit for wireless communication apparatus carry out data output output interface, further include receive indoor unit or
The feedback signal interface of the acoustic information and video information of bracelet machine feedback；The output interface of the central processing unit and wifi without
It is wirelessly connected by wifi between the signal input part of line router, the signal output end and wifi of the wifi wireless routers
It is wirelessly connected by wifi between the signal input part of signal amplifier, the signal output end of the wifi signal amplifier is in
The feedback signal interface of central processor connects, between the telecommunication end and bracelet machine or indoor unit of the wifi wireless routers
It is connected by internet.
Include that digital-quantity input interface, analog quantity are defeated to being further improved as, the input interface for above-mentioned technical proposal
It is one or more in incoming interface, RS485 input interfaces, RS232 input interfaces, video input interface.
To above-mentioned technical proposal be further improved for, wifi wireless routers include CPU module, 4G modules and
Wifi module, the outdoor are connected to CPU module, 4G modules and wifi module to power for electric installation；The CPU module passes through
PCI is connected to 4G modules, the 4G modules and wide area network traffic；The CPU module is connect with WIFI module, by 4G modules from
Pass through WIFI module wireless forwarding after the information conversion that Wide Area Network is received or sent.
To being further improved as the wifi signal amplifier includes wifi analog signal solution mode transfers for above-mentioned technical proposal
Block, digital signal processing module, wifi digital signal modulateds module and wifi analog signal amplification modules, the wifi simulations letter
Number demodulation module is connected with the digital signal processing module, the digital signal processing module and the wifi digital signals tune
Molding block is connected, and the wifi digital signal modulateds module is connected with the wifi analog signals amplification module.
To above-mentioned technical proposal be further improved for, the wifi analog signals amplification module be linear amplifier or
RF2126 chips.
The beneficial effects of the utility model are：
1, on the one hand, it is equipped with the indoor unit and outdoor unit being wirelessly connected, is not required to be equipped with signal transmission cable, safeguards user
Just.Second aspect, outdoor unit include shell, are installed on the button and display video information for obtaining fingerprint of surface of shell
Display screen is installed on camera of the surface of shell for obtaining field data, is installed on sound of the surface of shell for voice input
Sound sensor is installed on finger print information of the enclosure interior for obtaining to button, the screen information obtained to camera, to sound
The central processing unit that is handled of audio-frequency information that sensor obtains further includes being set in shell for will be through central processing unit
Information that treated feeds back to the wireless communication apparatus of indoor unit and bracelet machine, for the loudspeaker of back sound information and for supplying
The outdoor of electricity is for electric installation；Outdoor function obtains finger print information, video information, the audio-frequency information of visitor, and by these information
It is handled in time through central processing unit, indoor unit or bracelet machine, user is fed back to by wireless communication apparatus in time after processing
Visiting information can be received by indoor unit or bracelet machine, and is said by the screen module and audio-frequency module of indoor unit or bracelet machine
Words, the screen and audio-frequency information of user are exported by the display screen and loudspeaker of outdoor unit, feed back to visitor, two-way right to realize
It says, intelligence degree is high, safe, functional diversities.
2, indoor unit includes being used for main body, is set to information receiving unit and letter for receiving and handling information in main body
Cease processing component, be connected to information processing component for storing up stored storage assembly, be connected to processing component for show letter
The display module of breath and remote control module for being remotely controlled, further include be connected to processing component for power supply indoor power supply fill
It sets.Information receiving unit receives information of coming to visit and is transferred to display module after information processing component is handled and shows, remote control module
It is controlled, intelligence degree is high, safe, functional diversities.Display module be TV or tablet, it is easy to use, be applicable in
Range is wide.
3, wireless communication apparatus includes wifi signal amplifier and wifi wireless routers, and signal biography is carried out using wifi
Defeated, transmission speed is high, effective distance is long, ensures that data can fast and accurately be transmitted to indoor display module, further increases
Information collection precision and information transfer rate, it is safe.
4, central processing unit include for information input input interface, be connected to input interface for storing up stored storage
Memory cell is connected to storage element for handling the processing unit of information, being connected to processing unit for wireless communication apparatus
The output interface for carrying out data output further includes the acoustic information and video information for receiving indoor unit or bracelet machine feedback
Feedback signal interface；Pass through wifi between the output interface and the signal input part of wifi wireless routers of the central processing unit
It is wirelessly connected, passes through between the signal output end and the signal input part of wifi signal amplifier of the wifi wireless routers
Wifi is wirelessly connected, and the signal output end of the wifi signal amplifier and the feedback signal interface of central processing unit connect, institute
It states and is connected by internet between the telecommunication end of wifi wireless routers and bracelet machine or indoor unit.Central processing unit can be deposited
Store up information, part can be stored by the finger print information of certification, when the fingerprint of acquisition is certified fingerprint, can rapid feedback extremely
Output interface, then indoor unit or bracelet machine are fed back to by wifi wireless routers, further improve information collection precision and
Information transfer rate, it is safe.Signal between outdoor unit and indoor unit or bracelet machine transmit be it is two-way, can be quickly accurate
The true signal transmission for acquiring data outdoor unit can receive the control of indoor unit or bracelet machine to indoor unit or bracelet machine,
It realizes remote control, further increases the intelligent of doorbell, and data export after central processing unit is handled so that signal exists
Reduce distortion in transmission process, to improve the accuracy of data acquisition.
5, input interface include digital-quantity input interface, analog input interface, RS485 input interfaces, RS232 input connect
One or more in mouth, video input interface, input interface is varied, can be according to the different input of different signal behaviors
Interface shields electromagnetic interference, hair before anti-stop signal input since electromagnetic interference is strong in environment by different input interfaces
Raw distortion, further improves information collection precision and information transfer rate, safe.
6, wifi wireless routers include CPU module, 4G modules and wifi module, described to be connected to CPU moulds for electric installation
Block, 4G modules and wifi module are to power；The CPU module is connected to 4G modules, the 4G modules and Wide Area Network by PCI
Communication；The CPU module is connect with WIFI module, and 4G modules are passed through after the information conversion that Wide Area Network receives or sends
WIFI module wireless forwarding.Existing 4G modules of wifi wireless routers, and have wifi module, when distance wifi wireless routers compared with
When remote, 4G radio wide area networks can be used turn the mode of WIFI Wireless LAN and communicated, with ensure it is that information is transmitted and
When it is accurate, further improve information collection precision and information transfer rate, it is safe.
7, wifi signal amplifier includes wifi analog signals demodulation module, digital signal processing module, wifi numbers letter
Number modulation module and wifi analog signal amplification modules, the wifi analog signals demodulation module and the Digital Signal Processing mould
Block is connected, and the digital signal processing module is connected with the wifi digital signal modulateds module, the wifi digital signals tune
Molding block is connected with the wifi analog signals amplification module.Before signal amplification, pass through wifi analog signal demodulation modules pair
The signal decayed in transmission process carries out demodulation and is reduced to digital signal, then by digital signal processing module to digital signal into
Row verification, eliminates distortion, then be converted to analog signal by wifi digital signal modulated modules, is finally simulated and is believed by wifi again
Number amplification module carries out signal amplification.It can guarantee that noise will not be superimposed in amplified signal by this process, signal sensitivity
Height, signal transmission reliability is high, further improves information collection precision and information transfer rate, safe.
8, wifi analog signals amplification module is linear amplifier, and the wifi analog signals amplification module is RF2126 cores
Piece.Wifi analog signal amplification modules are linear amplifier, progress of the linear amplifier to specific frequency part in input signal
Amplification, to realize the amplification to inputting WIFI signal, load capacity is good for driving, strong antijamming capability, signal transmission reliability
Height, wifi analog signal amplification modules are RF2126 chips, and output power representative value is 1W, has a wide range of application, is conducive to this reality
With novel popularization and application.
Description of the drawings
Fig. 1 is the fundamental diagram of the utility model；
Fig. 2 is the fundamental diagram of the indoor unit of the utility model；
Fig. 3 is the fundamental diagram of the central processing unit of the utility model；
Fig. 4 is the fundamental diagram of the wifi wireless amplifiers of the utility model；
Fig. 5 is the fundamental diagram of the wifi signal routers of the utility model.
Specific implementation mode
The utility model is further described below in conjunction with attached drawing.
As shown in fig. 1~fig. 5, the respectively fundamental diagram of the utility model, the fundamental diagram of indoor unit, centre
Manage the fundamental diagram of the fundamental diagram of device, the fundamental diagram and wifi signal routers of wifi wireless amplifiers.
Intelligent radio video talk-back door bell 100, including be installed on outdoor outdoor unit 110, be installed on indoor room
Interior machine 120 is wirelessly connected between indoor unit 120 and outdoor unit 110.
Outdoor unit 110 include shell 111, be installed on 111 surface of shell for obtain fingerprint button 112 and display regard
The display screen 113 of frequency information is installed on camera 114 of 111 surface of shell for obtaining field data, is installed on shell 111
Surface is used for the sound transducer 115 of voice input, be installed on finger print information of the inside of shell 111 for being obtained to button 112,
The screen information that camera 114 is obtained, the central processing unit that the audio-frequency information that sound transducer 115 obtains is handled
116, further include being set in shell 111 for will treated that information feeds back to indoor unit 120 and hand through central processing unit 116
The wireless communication apparatus 118 of ring machine, the loudspeaker 119 for back sound information and the outdoor for power supply are for electric installation 117.
Indoor unit 120 includes being used for main body 121, is set in main body 121 and is received for receiving and handling the information of information
Component 122 and information processing component 123 are connected to information processing component 123 for storing up stored storage assembly 124, connect
It is used to show the display module 125 of information in processing component and the remote control module 126 for being remotely controlled, further includes being connected to place
Manage indoor power supply device 127 of the component for power supply.Information receiving unit 122 receives information of coming to visit, through information processing component 123
After processing, it is transferred to the display of display module 125, remote control module 126 controlled, and intelligence degree is high, safe, function is more
Sample.Display module 125 be TV or tablet, it is easy to use, it is applied widely.
Wireless communication apparatus 118 include wifi signal amplifier 118a and wifi wireless router 118b, using wifi into
Row signal transmission, transmission speed is high, effective distance is long, ensures that data can fast and accurately be transmitted to indoor display module
125, information collection precision and information transfer rate are further improved, it is safe.
Central processing unit 116 include for information input input interface 116a, be connected to input interface 116a for storing up
Stored storage element 116b, storage element 116b is connected to for handling the processing unit 116c of information, being connected to processing
Unit 116c is used to carry out the output interface 116d of data output to wireless communication apparatus 118, further includes receiving indoor unit
120 or bracelet machine feedback acoustic information and video information feedback signal interface 116e；The output interface of central processing unit 116
It is wirelessly connected by wifi between the signal input part of 116d and wifi wireless routers 118b, wifi wireless routers 118b's
It is wirelessly connected by wifi between signal output end and the signal input part of wifi signal amplifier 118a, wifi signal amplifier
The signal output end of 118a is connect with the feedback signal interface 116e of central processing unit 116, and wifi wireless routers 118b's is remote
It is connected by internet between journey communication ends and bracelet machine or indoor unit 120.Central processing unit 116 can store information, can store
Part is by the finger print information of certification, when the fingerprint of acquisition is certified fingerprint, can rapid feedback to output interface 116d,
Indoor unit 120 or bracelet machine are fed back to by wifi wireless routers 118b again, further improve information collection precision and letter
Transmission speed is ceased, it is safe.Signal between outdoor unit 110 and indoor unit 120 or bracelet machine transmit be it is two-way, can be fast
The speed signal transmission that accurately acquires data outdoor unit 110 to indoor unit 120 or bracelet machine, and can receive indoor unit 120 or
Remote control is realized in the control of bracelet machine, further increases the intelligent of doorbell, and data are handled through central processing unit 116
After export so that signal reduces distortion in transmission process, to improve data acquisition accuracy.
Input interface 116a includes digital-quantity input interface 116a, analog input interface 116a, RS485 input interface
One or more in 116a, RS232 input interface 116a, video input interface 116a, input interface 116a is varied, can
It is connect by different inputs according to the different input interface 116a of different signal behaviors since electromagnetic interference is strong in environment
Mouthful 116a shields electromagnetic interference, is distorted before anti-stop signal input, further improves information collection precision and information passes
Defeated speed, it is safe.
Wifi wireless routers 118b includes CPU module 118B1,4G module 118b2 and wifi module 118b3, for Denso
It sets and is connected to CPU module 118B1,4G module 118b2 and wifi module 118b3 to power；CPU module 118B1 is connected by PCI
In 4G modules 118b2,4G module 118b2 and wide area network traffic；CPU module 118B1 is connect with WIFI module 118B3, by 4G
Module 118b2 passes through WIFI module 118B3 wireless forwardings after the information conversion that Wide Area Network receives or sends.Wifi is wireless
Existing 4G modules 118b2 of router 118b, and have wifi module 118b3, when distance wifi wireless routers 118b farther out when, can
Turn to be communicated by the way of WIFI Wireless LAN using 4G radio wide area networks, to ensure that information is transmitted promptly and accurately,
Information collection precision and information transfer rate are further improved, it is safe.
Wifi signal amplifier 118a includes wifi analog signal demodulation modules 118a1, digital signal processing module
118a2, wifi digital signal modulated module 118a3 and wifi analog signal amplification module 118a4, wifi analog signal solution mode transfer
Block 118a1 is connected with digital signal processing module 118a2, digital signal processing module 118a2 and wifi digital signal modulated moulds
Block 118a3 is connected, and wifi digital signal modulated module 118a3 are connected with wifi analog signal amplification modules 118a4.It is put in signal
Before big, demodulation is carried out to the signal decayed in transmission process by wifi analog signal demodulation module 118a1 and is reduced to digital letter
Number, then digital signal is verified by digital signal processing module 118a2, distortion is eliminated, then pass through wifi digital signals
Modulation module 118a3 is converted to analog signal, finally carries out signal amplification by wifi analog signal amplification modules 118a4 again.
It can guarantee that noise will not be superimposed in amplified signal by this process, signal sensitivity is high, and signal transmission reliability is high, into one
Step improves information collection precision and information transfer rate, safe.
Wifi analog signal amplification modules 118a4 is linear amplifier, and wifi analog signal amplification modules 118a4 is
RF2126 chips.Wifi analog signal amplification modules 118a4 is linear amplifier, and linear amplifier is to specific frequency in input signal
Rate part is amplified, and to realize the amplification to inputting WIFI signal, load capacity is good for driving, strong antijamming capability, letter
Number transmission reliability height, wifi analog signal amplification modules 118a4 are RF2126 chips, and output power representative value is 1W, application
Range is wide, is conducive to the popularization and application of the utility model.
On the one hand, it is equipped with the indoor unit 120 being wirelessly connected and outdoor unit 110, is not required to be equipped with signal transmission cable, maintenance makes
With conveniently.Second aspect, outdoor unit 110 include shell 111, are installed on the button 112 for obtaining fingerprint on 111 surface of shell
With the display screen 113 of display video information, it is installed on camera 114 of 111 surface of shell for obtaining field data, is installed on
111 surface of shell is used for the sound transducer 115 of voice input, is installed on finger of 111 inside of shell for being obtained to button 112
Line information, the screen information that camera 114 is obtained, the center that is handled of audio-frequency information that sound transducer 115 is obtained
Processor 116 further includes being set in shell 111 for will treated that information feeds back to indoor unit through central processing unit 116
120 and bracelet machine wireless communication apparatus 118, for back sound information loudspeaker 119 and for power supply outdoor for Denso
Set 117；Outdoor unit 110 can obtain finger print information, video information, the audio-frequency information of visitor, and will be in these information in time warp
Central processor 116 is handled, and indoor unit 120 or bracelet machine, user are fed back to by wireless communication apparatus 118 in time after processing
Visiting information can be received by indoor unit 120 or bracelet machine, and passes through the screen module and audio of indoor unit 120 or bracelet machine
Module is spoken, and the screen and audio-frequency information of user are exported by the display screen 113 and loudspeaker 119 of outdoor unit 110, feed back to visit
Visitor, to realize two-way intercommunication, intelligence degree is high, safe, functional diversities.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (8)
1. intelligent radio video talk-back door bell, it is characterised in that：Including be installed on outdoor outdoor unit, be installed on it is indoor
Indoor unit is wirelessly connected between the indoor unit and outdoor unit；The outdoor unit includes shell, is installed on being used for for surface of shell
The display screen for obtaining the button and display video information of fingerprint, is installed on camera of the surface of shell for obtaining field data,
It is installed on sound transducer of the surface of shell for voice input, fingerprint of the enclosure interior for being obtained to button is installed on and believes
Breath, the screen information obtained to camera, the central processing unit that is handled of audio-frequency information obtained to sound transducer, are also wrapped
It includes and is set in shell for will be filled through the wireless telecommunications of central processing unit treated information feeds back to indoor unit and bracelet machine
It sets, the loudspeaker for back sound information and the outdoor for power supply are for electric installation.
2. intelligent radio video talk-back door bell according to claim 1, it is characterised in that：The indoor unit includes using
In main body, it is set to information receiving unit and information processing component for receiving and handling information in main body, is connected to information
Processing component is connected to processing component for showing the display module of information and for carrying out for storing up stored storage assembly
The remote control module of remote control, further include be connected to processing component for power supply indoor power supply device；The display module is TV
Or tablet.
3. intelligent radio video talk-back door bell according to claim 2, it is characterised in that：The wireless communication apparatus
Including wifi signal amplifier and wifi wireless routers, the wifi signal amplifier is wirelessly connected in information receiving unit.
4. intelligent radio video talk-back door bell according to claim 3, it is characterised in that：The central processing unit packet
It includes the input interface for information input, be connected to input interface for storing up stored storage element, being connected to storage element
It is connect for handling the processing unit of information, being connected to processing unit for carrying out the output of data output to wireless communication apparatus
Mouthful, further include the feedback signal interface for receiving indoor unit or the acoustic information and video information of bracelet machine feedback；In described
Be wirelessly connected by wifi between the output interface and the signal input part of wifi wireless routers of central processor, the wifi without
It is wirelessly connected by wifi between the signal output end of line router and the signal input part of wifi signal amplifier, the wifi
The feedback signal interface of the signal output end of signal amplifier and central processing unit connects, the wifi wireless routers it is long-range
It is connected by internet between communication ends and bracelet machine or indoor unit.
5. intelligent radio video talk-back door bell according to claim 4, it is characterised in that：The input interface includes
One in digital-quantity input interface, analog input interface, RS485 input interfaces, RS232 input interfaces, video input interface
Kind is a variety of.
6. intelligent radio video talk-back door bell according to claim 5, it is characterised in that：The wifi wireless routings
Device includes CPU module, 4G modules and wifi module, and the outdoor is connected to CPU module, 4G modules and wifi module for electric installation
With power supply；The CPU module is connected to 4G modules, the 4G modules and wide area network traffic by PCI；The CPU module with
WIFI module connects, and 4G modules are passed through WIFI module wireless forwarding after the information conversion that Wide Area Network receives or sends.
7. intelligent radio video talk-back door bell according to claim 6, it is characterised in that：The wifi signals amplification
Device includes wifi analog signals demodulation module, digital signal processing module, wifi digital signal modulateds module and wifi simulation letters
Number amplification module, the wifi analog signals demodulation module is connected with the digital signal processing module, at the digital signal
Reason module is connected with the wifi digital signal modulateds module, and the wifi digital signal modulateds module is believed with wifi simulations
Number amplification module is connected.
8. intelligent radio video talk-back door bell according to claim 7, it is characterised in that：The wifi analog signals
Amplification module is linear amplifier or RF2126 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721905587.6U CN207869262U (en) | 2017-12-29 | 2017-12-29 | Intelligent radio video talk-back door bell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721905587.6U CN207869262U (en) | 2017-12-29 | 2017-12-29 | Intelligent radio video talk-back door bell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207869262U true CN207869262U (en) | 2018-09-14 |
Family
ID=63463749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721905587.6U Active CN207869262U (en) | 2017-12-29 | 2017-12-29 | Intelligent radio video talk-back door bell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207869262U (en) |
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2017
- 2017-12-29 CN CN201721905587.6U patent/CN207869262U/en active Active
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| CP02 | Change in the address of a patent holder |
Address after: Room 201, Building 4, 26 Hantang Street, Dongcheng Street, Dongguan City, Guangdong Province Patentee after: DONGGUAN TIANLUO ELECTRONIC TECHNOLOGY CO., LTD. Address before: 523000 Third Floor, 12 Yonghe West Street, Dazhou Village, Huangsiwei, Shijie Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN TIANLUO ELECTRONIC TECHNOLOGY CO., LTD. |
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