CN210775847U - Laser radar system - Google Patents
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- CN210775847U CN210775847U CN201921586448.0U CN201921586448U CN210775847U CN 210775847 U CN210775847 U CN 210775847U CN 201921586448 U CN201921586448 U CN 201921586448U CN 210775847 U CN210775847 U CN 210775847U
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Abstract
The utility model relates to the laser radar field, in particular to a laser radar system, which comprises a distance measuring module for measuring the distance of a target object and a scanning module, wherein the distance measuring module scans a target area through the scanning module and acquires the position information of an external optical communication module in the target area; the space optical communication module is used for being in communication connection with the external optical communication module to realize data transmission; and the main control module is respectively connected with the distance measuring module, the scanning module and the space optical communication module, controls the distance measuring module to scan a target area through the scanning module, acquires the position information of the external optical communication module in the target area, and adjusts the pointing angle of the space optical communication module according to the acquired position information so as to aim at the external optical communication module for data transmission. The utility model discloses can realize laser radar system and external high-speed data transmission, simplify the data transmission operation, data directionality and security are good, do not have mutual interference, reduce the cost of labor.
Description
Technical Field
The utility model relates to a laser radar field, concretely relates to laser radar system.
Background
The technology such as automatic driving develops at a high speed, and in order to meet various specific requirements, various schemes emerge for an important matched sensor laser radar. There is a need for more efficient interconnection and interworking between various autonomous systems and various autonomous vehicles and various data nodes around them. The automatic driving automobile collects a great deal of various types of precious data every day, and the analysis and collection of the data are beneficial to greatly improving the intelligent level of the automatic driving automobile and the construction level of a digital world. The unmanned vehicle downloads data to a server for storage and analysis after the job.
The conventional laser radar only has the sensing capability of environment measurement. At present, data collected after the operation of the automatic driving automobile is finished every day are downloaded in a cable mode or a mode of disassembling an on-board memory. Yet another way is by means of radio transmission, where data download is done over a wireless network.
The conventional laser radar system does not have the capability of external reliable and high-speed data direct communication, and the interconnection level and the intelligent level of the unmanned vehicle system equipped with the laser radar are limited. In addition, in the aspect of data downloading and transferring, the data can be stored and transferred functionally by disassembling the vehicle-mounted memory or connecting a cable for data downloading, but all the data need manual intervention, and complex operations exist in different degrees. True unmanned operation is not possible for unmanned vehicle systems. Data transmission can be realized without manual intervention in a wireless network mode, and the defects that the directionality of data transmission is poor and the risk of data leakage exists; and are susceptible to interference or mutual interference between multiple carts.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a laser radar system, overcome current laser radar system's data transmission operation complicacy, receive external interference easily, and have the problem that the risk was revealed to data.
The utility model provides a technical scheme that its technical problem adopted is: there is provided a lidar system including a ranging module for measuring a target distance, further including:
the distance measurement module scans a target area through the scanning module and acquires position information of an external optical communication module in the target area;
the space optical communication module is used for being in communication connection with the external optical communication module to realize data transmission; and the main control module is respectively connected with the distance measuring module, the scanning module and the space optical communication module, controls the distance measuring module to scan a target area through the scanning module, acquires the position information of the external optical communication module in the target area, and adjusts the pointing angle of the space optical communication module according to the acquired position information so as to aim at the external optical communication module for data transmission.
The utility model discloses a further preferred scheme is: the main control module drives the space optical communication module to rotate by controlling the scanning module to work so as to adjust the direction of the space optical communication module to be aligned with the external optical communication module.
The utility model discloses a further preferred scheme is: the ranging module comprises a laser transmitting unit, the laser radar system further comprises a ranging driving unit and a communication driving unit which are respectively connected with the main control module and the laser transmitting unit, the ranging driving unit drives the laser transmitting unit to transmit ranging laser signals to measure and acquire position information of the external optical communication module, and the communication driving unit drives the laser transmitting unit to transmit communication laser signals to be in communication connection with the external optical communication module.
The utility model discloses a further preferred scheme is: the laser radar system is characterized by further comprising a laser receiving unit used for receiving external optical signals, and a signal processing unit connected with the main control module and the laser receiving unit respectively, wherein the signal processing unit acquires the optical signals received by the laser receiving unit and outputs different types of information after processing.
The utility model discloses a further preferred scheme is: the distance measurement module comprises a distance measurement laser light source, a beam combiner and a collimator which are sequentially arranged, the space optical communication module comprises a communication laser light source, and an optical signal generated by the distance measurement laser light source and an optical signal generated by the communication laser light source are output after being combined by the beam combiner and collimated by the collimator.
The utility model discloses a further preferred scheme is: the distance measurement module is characterized by further comprising a distance measurement light receiving device, a first light splitting device and a first focusing device which are sequentially arranged, the space light communication module comprises a communication light receiving device, an external light signal enters the first light splitting device to be divided into two parts of light after passing through the first focusing device, the first part of light enters the distance measurement light receiving device, and the second part of light enters the communication light receiving device.
The utility model discloses a further preferred scheme is: the space optical communication module comprises a communication laser light source, a communication light receiving device, a second light splitting device and a second focusing device, an optical signal generated by the communication laser light source passes through the second light splitting device and then is focused by the second focusing device and then is in communication connection with the external optical communication module, and the communication light receiving device receives the optical signal of the external optical communication module through the second light splitting device and the second focusing device and is in communication connection.
The utility model discloses a further preferred scheme is: the space optical communication module comprises an optical communication unit in communication connection with the external optical communication module and a rotating unit, wherein the rotating unit drives the optical communication unit to rotate so as to adjust the angle to align the external optical communication module by itself, so that data transmission is realized.
The utility model discloses a further preferred scheme is: the main control module comprises a judging unit for judging the data transmission state and a control unit respectively connected with the judging unit and the space optical communication module, and the control unit controls the communication connection state of the space optical communication module and the external optical communication module according to the judging result of the judging unit.
The beneficial effects of the utility model reside in that, compared with the prior art, through setting up the ranging module, scanning module, space optical communication module and host system, ranging module passes through scanning module scanning target area, acquire the positional information of outside optical communication module in the target area, host system adjusts the directional angle of space optical communication module according to the positional information control of the outside optical communication module who acquires, in order to aim at outside optical communication module, establish communication connection with outside optical communication module and realize data transmission, utilize high-speed optical communication's advantage, realize laser radar system and external data transmission, need not outside manual intervention, simplify data transmission operation, and data directionality and security are good, mutual interference does not exist, further reduce the cost of labor and strengthen the intelligence level of laser radar system; and the scanning module is controlled to work to drive the space optical communication module to rotate so as to adjust the direction of the space optical communication module to be aligned with the external optical communication module, and the scanning module is shared, so that the overall size of the laser radar system is small.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a block diagram of a laser radar system according to the present invention;
FIG. 2 is a schematic view of a large horizontal field angle scan range;
FIG. 3 is a schematic view of a given horizontal and vertical field angle scan range;
fig. 4 is a schematic structural diagram of the laser emitting unit shared by the space optical communication module and the distance measuring module of the present invention;
fig. 5 is a schematic structural diagram of the laser receiving unit shared by the space optical communication module and the distance measuring module of the present invention;
fig. 6 is a schematic structural diagram of the first focusing device shared by the space optical communication module and the distance measuring module of the present invention;
fig. 7 is a schematic structural diagram of the collimator shared by the space optical communication module and the ranging module of the present invention;
fig. 8 is a schematic structural diagram of the second focusing device shared by the transceiver in the space optical communication module of the present invention.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the present invention provides a preferred embodiment of a lidar system.
A lidar system comprising a ranging module 20 for measuring target distances, further comprising:
the distance measuring module 20 scans the target area through the scanning module 10 and obtains the position information of the external optical communication module in the target area;
the space optical communication module 30 is used for being in communication connection with an external optical communication module to realize data transmission; and
and the main control module 40 is respectively connected with the ranging module 20, the scanning module 10 and the space optical communication module 30, controls the ranging module 20 to scan a target area through the scanning module 10, obtains position information of an external optical communication module in the target area, and adjusts a pointing angle of the space optical communication module 30 according to the obtained position information so as to aim at the external optical communication module for data transmission.
By arranging the space optical communication module 30, the scanning module 10 and the main control module 40, the main control module 40 scans a target area by controlling the distance measurement module 20 through the working of the scanning module 10, the position information of an external optical communication module in the target area is obtained, the pointing angle of the space optical communication module 30 is adjusted according to the obtained position information, the pointing angle is aligned to the external optical communication module, the communication connection is established with the external optical communication module to realize data transmission, on the basis of realizing the distance measurement function of a common laser radar system, the high-speed data transmission between the laser radar system and the outside is realized by utilizing the advantages of high-speed optical communication, the external manual intervention is not needed, the data transmission operation is simplified, the data directionality and the confidentiality are good, the mutual interference is avoided, the labor cost is further reduced, and the intelligence level of the laser radar system is enhanced.
The laser radar system has an optical communication function and also retains the original three-dimensional measurement function. The utility model discloses a laser radar system utilizes the three-dimensional scene of scanning module 10 scanning target area to acquire three-dimensional data, judges outside optical communication module's coordinate position by host system 40 to acquire outside optical communication module's positional information in the target area, utilize laser radar three-dimensional positioning's function, scan the position of discerning outside optical communication module, start point-to-point data transmission behind the position of locking outside optical communication module, realize high-speed communication.
Further, the main control module 40 controls the scanning module 10 to operate to drive the spatial optical communication module 30 to rotate, so as to adjust the spatial optical communication module 30 to point to the external optical communication module. After the main control module 40 in the laser radar system determines the position of the external optical communication module, the scanning module 10 is controlled to operate to drive the spatial optical communication module 30 to rotate, and the pointing angle of the spatial optical communication module 30 is adjusted to establish data connection with the external optical communication module. The pointing angle of the space optical communication module 30 is controlled and adjusted by sharing the scanning module 10 for three-dimensional scanning measurement, and the control is convenient. Of course, the spatial optical communication module 30 may also be a spatial optical communication module with a pointing angle adjustment function, and includes an optical communication unit in communication connection with an external optical communication module, and a rotation unit, where the rotation unit drives the optical communication unit to rotate to adjust an angle of the optical communication unit to align with the external optical communication module, so as to implement data transmission.
In this embodiment, the scanning module 10 may implement 360 ° large horizontal field angle scanning, as shown in fig. 2; it is also possible to focus only on scans in front of a given range of horizontal and vertical field angles, as shown in fig. 3.
Wherein, with reference to fig. 2 and 3, FOV1 is illustrated as a conventional three-dimensional measurement field of view range of a lidar system; FOV2 is illustrated as the effective field of view range of spatial light communication module 30. During spatial light path data transmission, the FOV2 is aimed at the external optical communication module, which establishes an effective data connection and performs data transmission.
The utility model discloses in, the laser of space optical communication module 30 and ranging module 20 transmission is the same or when close, can realize sharing transmission optical device's form with multiple form and save the cost and reduce the holistic volume of laser radar system. When the laser wavelengths are the same or close to each other, the space optical communication module 30 and the distance measuring module 20 may share different optical devices according to different situations, or, when different laser wavelengths are used, both of the two optical devices use independent optical devices, and the laser wavelengths are not limited at this time.
The following describes the structures of the spatial optical communication module 30 and the ranging module 20 in common for different optical devices. In the first scheme, the space optical communication module 30 and the ranging module 20 share the laser emitting unit 21; in the second scheme, the space optical communication module 30 and the ranging module 20 share the laser receiving unit 22; in the third scheme, the space optical communication module 30 and the ranging module 20 share the collimator 212.
The first scheme is as follows:
referring to fig. 4, the ranging module 20 includes a laser emitting unit 21, the lidar system further includes a ranging driving unit 50 and a communication driving unit 60 respectively connected to the main control module 40 and the laser emitting unit 21, the ranging driving unit 50 drives the laser emitting unit 21 to emit ranging laser signals to measure and acquire position information of the external optical communication module, and the communication driving unit 60 drives the laser emitting unit 21 to emit communication laser signals to be in communication connection with the external optical communication module.
When the position information of the external optical communication module needs to be measured and acquired, the main control module 40 sends a ranging enabling signal to the ranging driving unit 50, the ranging driving unit 50 generates a driving signal according to the ranging enabling signal, sends the driving signal to the laser emitting unit 21, drives the laser emitting unit 21 to emit a ranging laser signal, measures and acquires the position information of the external optical communication module, and sends the acquired position information to the main control module 40.
When the communication connection with the external communication module is needed to realize data transmission, the main control module 40 sends a communication energy signal to the communication driving unit 60, the communication driving unit 60 generates a driving signal according to the communication energy signal modulation, and sends the driving signal to the laser emitting unit 21, so that the laser emitting unit 21 is driven to emit a communication laser signal to perform communication connection with the external optical communication module, and data transmission is realized.
The laser emitting unit 21 includes a laser 211 and a collimator 212, wherein an input end of the laser 211 is connected to the distance measuring driving unit 50 and the communication driving unit 60, and an output end of the laser is connected to the collimator 212.
The distance measurement driving unit 50 and the laser emitting unit 21 perform adjustment work under the control signal sent by the main control module, and the laser 211 performs different work roles simultaneously or in time division under the driving control of the distance measurement driving unit 50 and the communication driving unit 60. The space optical communication module 30 and the ranging module 20 share the laser emitting unit 21, so that the cost is greatly saved and the overall size is reduced.
Scheme II:
referring to fig. 5, the ranging module 20 includes a laser receiving unit 22 for receiving an external light signal, and the lidar system further includes a signal processing unit 70 connected to the main control module 40 and the laser receiving unit 22, respectively, where the signal processing unit 70 acquires the light signal received by the laser receiving unit 22, and outputs different types of information after processing. The different types of information refer to three-dimensional information of the target area, and handshake signals for establishing a communication connection between the external optical communication module and the space optical communication module 30 or other communication signals capable of establishing a communication connection.
Among them, the laser receiving unit 22 may be a photodiode. The same photodiode is shared for distance measurement and communication, the photodiode receives external optical signals and transmits the external optical signals to the signal processing unit 70, and the signal processing unit 70 adopts different processing means to acquire different types of information. Of course, the photodiode may also be a PIN/APD/SiPM or other various photoelectric sensitive detectors, and may also receive and detect external optical signals.
In addition, the space optical communication module 30 and the ranging module 20 may not share the laser receiving unit 22 for receiving the external optical signal. Referring to fig. 6, specifically, the distance measuring module 20 further includes a distance measuring light receiving device 23, a first light splitting device 24, and a first focusing device 25, which are sequentially arranged, the space optical communication module 30 includes a communication light receiving device 31, after passing through the first focusing device 25, an external optical signal enters the first light splitting device 24 and is split into two parts of light, the first part of light enters the distance measuring light receiving device 23, and the second part of light enters the communication light receiving device 31. The space optical communication module 30 and the ranging module 20 share the first focusing device 25, external optical signals are converged by the first focusing device 25 and then enter the first light splitting device 24, and after being split by the first light splitting device 24, the optical signals are distributed to the ranging optical receiving device 23 and the communication optical receiving device 31, so that the acquisition of position information of the external optical communication module and the communication connection with the external communication module are respectively realized.
The third scheme is as follows:
in this embodiment, the space optical communication module 30 and the ranging module 20 share the collimator 212.
Referring to fig. 7, the distance measuring module 20 includes a distance measuring laser light source 26, a beam combiner 27 and a collimator 212, which are sequentially disposed, the spatial optical communication module 30 includes a communication laser light source 32, and an optical signal generated by the distance measuring laser light source 26 and an optical signal generated by the communication laser light source 32 are output after being combined by the beam combiner 27 and then being collimated by the collimator 212. The laser wavelength of the optical signal generated by the ranging laser source 26 is the same as or similar to that of the optical signal generated by the communication laser source 32, so that the two modules use the beam combiner 27 to share the collimator 212 to output the optical signal, the cost is saved, and the overall size is reduced.
The utility model discloses a space optical communication module 30 and ranging module 20 among the laser radar system also can adopt independent optical device separately, realize the transmission of light signal.
Specifically, referring to fig. 8, the spatial optical communication module 30 includes a communication laser light source 32, a communication light receiving device 31, a second optical splitter 33, and a second focusing device 34, where an optical signal generated by the communication laser light source 32 passes through the second optical splitter 33 and then passes through the second focusing device 34 to be in communication connection with an external optical communication module, and the communication light receiving device 31 receives an optical signal of the external optical communication module through the second optical splitter 33 and the second focusing device 34 to be in communication connection.
The communication laser light source 32 and the communication light receiving device 31 share the second focusing device 34, so that the volume of the whole system can be reduced to a certain extent. The optical signal emitted by the communication laser light source 32 and the optical signal received by the communication optical receiving device 31 may use lasers with the same wavelength, the same characteristics, or different wavelengths. When lasers with different wavelengths or different characteristics are used, the communication laser light source 32 and the communication light receiving device 31 may adopt a duplex operation mode; when the laser with the same characteristic is adopted, the data interaction with the outside can be realized through a time-sharing simplex working mode.
When the communication laser light source 32 and the communication light receiving device 31 do not share any optical device, the laser light emitted by the communication laser light source 32 is collimated by the collimator 212 and then enters the light receiving end of the external optical communication module, so as to realize the communication connection with the external optical communication module, wherein the spatial optical communication module 30 and the external optical communication module establish data connection through operations such as handshaking and the like, and complete the data transmission work. The external optical signal is focused by the focusing device and then enters the communication optical receiving device 31, so that the optical signal is received.
In this embodiment, the laser 211 may be a simple semiconductor laser, or may be a plurality of laser light sources such as a fiber laser. The photodiode can be a PIN/APD/SiPM and other photoelectric sensitive detectors. The laser wavelength used by the space optical communication module 30 and the external optical communication module may be a silicon-based sensitive wavelength of about 900nm, or may be an InGaAs sensitive wavelength of about 1550 nm.
In this embodiment, the main control module 40 includes a judging unit for judging a data transmission state, and a control unit connected to the judging unit and the space optical communication module 30, and the control unit controls a communication connection state between the space optical communication module 30 and the external optical communication module according to a judgment result of the judging unit. The data transmission status includes whether to allow the external optical communication module to enter the data transmission mode, and whether the spatial optical communication module 30 and the external optical communication module complete data transmission. In the case where the data transmission mode with the external optical communication module is allowed, the control unit controls the spatial optical communication module 30 to perform data transmission with the external optical communication module; in the case where the spatial optical communication module 30 completes data transmission with the external optical communication module, the control unit controls to stop the operation of the spatial optical communication module 30.
The main control unit can receive an external control command and control the start or stop of scanning control of the laser radar system.
The utility model discloses make full use of laser radar system three-dimensional location's function, the position of the outside optical communication module of scanning discernment, start point-to-point data transmission behind the locking position.
And, the utility model discloses a laser radar system can be applied to among the autopilot, in laser radar system's working process, the target area is the all ring edge borders that unmanned car was located promptly, through the scanning, then measures and acquires all ring edge borders information of three-dimensional information acquisition on every side, provides all ring edge borders perception information for unmanned car's control system. When the unmanned vehicle enters a specific scene such as a garage with matched space optical communication data transmission equipment, the vehicle control system of the unmanned vehicle allows the laser radar system to enter a data transmission mode; the laser radar system scans surrounding three-dimensional scenes and measures and obtains three-dimensional data, the main control module 40 of the laser radar system or the control system of the unmanned vehicle analyzes the data to judge the coordinate position of the external optical communication module, so that the position information of the external optical communication module is obtained, the main control module 40 of the laser radar system controls the space optical communication module 30 to automatically adjust the self-pointing angle to align to the external optical communication module according to the obtained position information, the space optical communication module 30 and the external optical communication module establish data connection through handshaking and other operations to perform data transmission and complete data transmission work, the laser radar system enters a conventional three-dimensional measurement mode, waits for a control signal of the main control module 40 and judges whether to stop communication control of the laser radar system.
The laser radar system of the utility model is applied to the unmanned vehicle, which is beneficial to improving the interactive diversity of the unmanned vehicle; the unmanned vehicle data downloading system has the advantages that a data downloading and transmitting function can be provided, so that unmanned vehicle data downloading work can be completed at a high speed and reliably without manual participation, unmanned operation of the unmanned vehicle is achieved, labor cost is further reduced, and the intelligent level of the unmanned vehicle control system is enhanced.
It should be understood that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some technical features; and all such modifications and alterations should fall within the scope of the appended claims.
Claims (9)
1. A lidar system including a ranging module for measuring a range of a target object, the lidar system further comprising:
the distance measurement module scans a target area through the scanning module and acquires position information of an external optical communication module in the target area;
the space optical communication module is used for being in communication connection with the external optical communication module to realize data transmission; and
the main control module is respectively connected with the distance measurement module, the scanning module and the space optical communication module, controls the distance measurement module to scan a target area through the scanning module, obtains the position information of the external optical communication module in the target area, and adjusts the pointing angle of the space optical communication module according to the obtained position information so as to aim at the external optical communication module for data transmission.
2. The lidar system of claim 1, wherein the main control module drives the spatial optical communication module to rotate by controlling the operation of the scanning module, so as to adjust the orientation of the spatial optical communication module to the external optical communication module.
3. The lidar system according to claim 1 or 2, wherein the ranging module comprises a laser emitting unit, the lidar system further comprises a ranging driving unit and a communication driving unit which are respectively connected with the main control module and the laser emitting unit, the ranging driving unit drives the laser emitting unit to emit ranging laser signals to measure and acquire position information of the external optical communication module, and the communication driving unit drives the laser emitting unit to emit communication laser signals to be in communication connection with the external optical communication module.
4. The lidar system of claim 3, wherein the ranging module further comprises a laser receiving unit for receiving an external light signal, the lidar system further comprises a signal processing unit connected to the main control module and the laser receiving unit, respectively, and the signal processing unit obtains the light signal received by the laser receiving unit and outputs different types of information after processing.
5. The lidar system according to claim 1 or 2, wherein the ranging module comprises a ranging laser light source, a beam combiner and a collimator which are sequentially arranged, the space optical communication module comprises a communication laser light source, and an optical signal generated by the ranging laser light source and an optical signal generated by the communication laser light source are output after being combined by the beam combiner and then being collimated by the collimator.
6. The lidar system according to claim 1 or 2, wherein the distance measurement module comprises a distance measurement light receiving device, a first light splitting device and a first focusing device, which are sequentially arranged, the space optical communication module comprises a communication light receiving device, an external light signal passes through the first focusing device and then enters the first light splitting device to be split into two parts of light, the first part of light enters the distance measurement light receiving device, and the second part of light enters the communication light receiving device.
7. The lidar system according to claim 1 or 2, wherein the spatial optical communication module comprises a communication laser light source, a communication light receiving device, a second optical splitter, and a second focusing device, wherein an optical signal generated by the communication laser light source passes through the second optical splitter, is focused by the second focusing device, and is then communicatively connected to the external optical communication module, and the communication light receiving device receives an optical signal of the external optical communication module through the second optical splitter and the second focusing device for communicative connection.
8. The lidar system of claim 1, wherein the spatial optical communication module comprises an optical communication unit in communication connection with an external optical communication module, and a rotation unit for driving the optical communication unit to rotate to self-adjust the angle of the optical communication unit to the external optical communication module for data transmission.
9. The lidar system according to claim 1, wherein the main control module comprises a determination unit for determining a data transmission state, and a control unit connected to the determination unit and the spatial optical communication module, respectively, wherein the control unit controls a communication connection state between the spatial optical communication module and the external optical communication module according to a determination result of the determination unit.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115561736A (en) * | 2022-10-25 | 2023-01-03 | 山东莱恩光电科技股份有限公司 | Laser radar non-maintaining guard shield and radar |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115561736A (en) * | 2022-10-25 | 2023-01-03 | 山东莱恩光电科技股份有限公司 | Laser radar non-maintaining guard shield and radar |
| CN115561736B (en) * | 2022-10-25 | 2023-10-13 | 山东莱恩光电科技股份有限公司 | Laser radar maintenance-free shield and radar |
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Address after: 518000 No. 35, Cuijing Road, Pingshan New District, Shenzhen, Guangdong Patentee after: Ona Technology (Shenzhen) Group Co.,Ltd. Address before: No.35 Cuijing Road, Pingshan District, Shenzhen City, Guangdong Province Patentee before: O-NET COMMUNICATIONS (SHENZHEN) Ltd. |
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