CN107871920A - A kind of autonomous driving vehicle data communication antenna structure - Google Patents
A kind of autonomous driving vehicle data communication antenna structure Download PDFInfo
- Publication number
- CN107871920A CN107871920A CN201711365998.5A CN201711365998A CN107871920A CN 107871920 A CN107871920 A CN 107871920A CN 201711365998 A CN201711365998 A CN 201711365998A CN 107871920 A CN107871920 A CN 107871920A
- Authority
- CN
- China
- Prior art keywords
- antenna
- data communication
- drive mechanism
- rotary drive
- module
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/125—Means for positioning
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/08—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
Abstract
The present invention relates to a kind of autonomous driving vehicle data communication antenna structure, including positioning base, main rotary drive mechanism, auxiliary rotary drive mechanism, telescopic mast, flat plane antenna, concave surface antenna, data processing circuit and running control circuit, positioning base includes chassis, workbench, plummer and turntable mechanism, concave surface antenna is hinged with plummer upper surface, and flat plane antenna is arranged on the plummer in concave surface antenna dead astern by aiding in rotary drive mechanism to be arranged on telescopic mast upper surface by telescopic mast.One aspect of the present invention can effectively meet vehicle communication antenna work capacity is adjusted flexibly and the needs of data communication operation, on the other hand it can targetedly select different types of antenna to be run, improve the reliability and stability of data communication signal transmitting-receiving operation.
Description
Technical field
The present invention relates to a kind of safety device, is exactly a kind of autonomous driving vehicle data communication day knot
Structure.
Background technology
At present in vehicle operation, the vehicle for especially possessing autonomous operation ability is required to car in the process of running
Running status carries out remote detection, manipulation and data interaction, to reach the safety and reliability for improving vehicle operation operation,
In order to meet this needs, it is required on Current vehicle with the signal communication antenna for being ready for use on data wireless communication transmission, but
Found in actual use, the external communication antenna or be embedded in that presently used hungry signal communication antenna often uses
Flush type antenna inside vehicle roof, although the communication antenna of this current two quasi-tradition can meet vehicle to letter to a certain degree
Single high-frequency electric wave signal obtain and the needs of signal Launch Operation, but finds in actual use, presently used
For traditional antenna in data communication operation, data communication capabilities are relatively poor, so as to cause vehicle operation control signal communication steady
Qualitative and reliability is relatively poor, it is impossible to effectively meets that big data communication operation and high-speed data communications are made in vehicle operation
The needs of industry, so as to cause vehicle operation monitoring operative signals ability to communicate poor, signal communication efficiency is low, and makees in data communication
Communication signal is highly prone to the interference of external complex electromagnetic environment in industry, so as to cause the automatic driving vehicle of current autonomous operation to be transported
Row safety and reliability is a greater impact, it is impossible to effectively meets need of the vehicle actual motion operation to data communication capabilities
Will, therefore this problem is directed to, there is an urgent need to develop a kind of brand-new vehicle communication antenna, to meet the needs of actual use.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of autonomous driving vehicle data communication day knot
Structure, the inventive structure is simple, flexible using energy, and operation automaticity is high, on the one hand can effectively meet to lead to vehicle
Iflytech's line work capacity is adjusted flexibly and the needs of data communication operation, on the other hand can be according to communication data type and number
According to traffic, targetedly select different types of antenna to be run, improve the reliable of data communication signal transmitting-receiving operation
Property and stability.
To achieve these goals, the present invention is to realize by the following technical solutions：
A kind of autonomous driving vehicle data communication antenna structure, including positioning base, main rotary drive mechanism, auxiliary rotation drive
Motivation structure, telescopic mast, flat plane antenna, concave surface antenna, data processing circuit and running control circuit, positioning base include chassis,
Workbench, plummer and turntable mechanism, wherein workbench are located at directly over chassis, and distribution parallel with chassis, workbench and bottom
It is connected with each other between disk by least four telescopic masts, each telescopic mast is uniform around chassis and table axis, plummer totally two
It is individual, worktable upper surface and distribution parallel with workbench are distributed on, passes through turntable between plummer lower surface and worktable upper surface
Mechanism is connected with each other, and main rotary drive mechanism totally two is installed in workbench lower surface and corresponding with two plummers respectively
Turntable mechanism is connected with each other, and totally one, concave surface antenna, is hinged by turntable mechanism and plummer upper surface, and concave surface antenna axis
It is in 0 ° -90 ° angles with plummer upper surface, flat plane antenna is arranged on by telescopic mast on the plummer in concave surface antenna dead astern,
And flat plane antenna carries out 0 ° -360 ° by aiding in rotary drive mechanism to be arranged on telescopic mast upper surface, and around flexible mast axis
Angle rotates, and data processing circuit and running control circuit are installed in chassis upper surface, wherein data processing circuit respectively with
Flat plane antenna, concave surface antenna and vehicle driving computer circuits electrical connection, running control circuit respectively with main rotary drive mechanism,
Aid in rotary drive mechanism, telescopic mast, data processing circuit and vehicle power circuit electrical connection.
Further, described flat plane antenna includes bearing base, shrinking connecting-rod and antenna plate, and described antenna plate is at least
Two, it surround bearing base axis uniformly and is connected with each other by two shrinking connecting-rods and bearing base side surface, and it is described
Shrinking connecting-rod both ends are hinged with surface after antenna plate and bearing base side surface respectively, described antenna plate and bearing base side table
Face is in 0 ° -60 ° angles, and parallel with one another between each antenna plate, and described bearing base lower surface is by aiding in rotary drive mechanism
It is connected with telescopic mast upper surface.
Further, described telescopic mast and shrinking connecting-rod are hydraulically extensible bar, air pressure telescopic link and electric expansion bar
In any one, and stroke sensor is all provided with described telescopic mast and shrinking connecting-rod, and stroke sensor controls with operation
Circuit electrical connects.
Further, it is connected with each other between described chassis and workbench by least two flexibly positioned cushion blocks, and it is described
Flexibly positioned cushion block around chassis axis it is uniform.
Further, described turntable mechanism is any one in dimensional turntable and three-dimensional state.
Further, described concave surface antenna outer surface sets at least one angel measuring instrument, and described angel measuring instrument
Axis distribution parallel with concave surface antenna axis, and angel measuring instrument is electrically connected with running control circuit.
Further, described data processing circuit includes leading to based on the data processing module based on FPGA, another data
Serial port module, wireless data communication module, data communication bus, coding and decoding module, signal amplification module and filtration module are interrogated,
Described data communication bus respectively with include based on FPGA based on data processing module data communication serial port module, without line number
Be electrically connected according to communication module, coding and decoding module, signal amplification module and filtration module, and described filtration module pass through it is logical
Interrogate serial port module to be electrically connected with flat plane antenna, concave surface antenna respectively, pass through data communication serial port module, wireless data communication mould
Block is electrically connected with vehicle driving computer circuits.
Further, described running control circuit is the control circuit based on DSP single-chip microcomputers, and sets wireless telecommunications dress
Put, accessory power supply, regulating circuit, power supply terminal, at least one I/O PORT COMs, at least one serial communication device and
At least one control relay circuit, and driven by I/O PORT COMs, wireless communication apparatus, serial communication device and main rotation
Motivation structure, auxiliary rotary drive mechanism, telescopic mast, data processing circuit and the electrical connection of vehicle driving computer circuits, pass through tune
Volt circuit is electrically connected with vehicle power circuit, accessory power supply and control relay circuit respectively, passes through control relay circuit
It is electrically connected respectively with main rotary drive mechanism, auxiliary rotary drive mechanism, telescopic mast and turntable mechanism.
The present invention is simple in construction, flexible using energy, and operation automaticity is high, on the one hand can effectively meet to car
Communication antenna work capacity is adjusted flexibly and the needs of data communication operation, on the other hand can be according to communication data type
And data communication amount, targetedly select different types of antenna to be run, improve data communication signal transmitting-receiving operation
Reliability and stability.
Brief description of the drawings
Describe the present invention in detail with reference to the accompanying drawings and detailed description；
Fig. 1 is schematic structural view of the invention；
Fig. 2 is plane antenna structure schematic diagram；
Fig. 3 is data processing circuit electrical schematic diagram；
Fig. 4 is running control circuit electrical schematic diagram.
Embodiment
To be easy to understand the technical means, the inventive features, the objects and the advantages of the present invention, with reference to specific
Embodiment, the present invention is expanded on further.
A kind of autonomous driving vehicle data communication antenna structure as described in Fig. 1-3, including positioning base 1, main rotation
Drive mechanism 2, auxiliary rotary drive mechanism 3, telescopic mast 4, flat plane antenna 5, concave surface antenna 6, data processing circuit 7 and operation control
Circuit 8 processed, positioning base 1 include chassis 101, workbench 102, plummer 103 and turntable mechanism 104, wherein workbench 102
Directly over chassis 101, and with 101 parallel distribution of chassis, pass through at least four phases of telescopic mast 4 between workbench 102 and chassis 101
Connect, each telescopic mast 4 is uniform around chassis 101 and the axis of workbench 102, plummer 103 totally two, is distributed on workbench
102 upper surfaces and with 102 parallel distribution of workbench, pass through turntable mechanism between the lower surface of plummer 103 and the upper surface of workbench 102
104 are connected with each other, main rotary drive mechanism 2 totally two, installed in the lower surface of workbench 102 and respectively with two plummers 103
Corresponding turntable mechanism 104 is connected with each other, totally one, concave surface antenna 6, is cut with scissors by turntable mechanism 104 and the upper surface of plummer 103
Connect, and the axis of concave surface antenna 6 and the upper surface of plummer 103 are in 0 ° -90 ° angles, flat plane antenna 5 is arranged on recessed by telescopic mast 4
On the plummer 103 in the dead astern of surface antenna 6, and flat plane antenna 5 is by aiding in rotary drive mechanism 3 to be arranged on the upper end of telescopic mast 4
Face, and 0 ° -360 ° angle rotations are carried out around the axis of telescopic mast 4, data processing circuit 7 and running control circuit 8 are installed in
The upper surface of chassis 101, wherein data processing circuit 7 are electric with flat plane antenna 5, concave surface antenna 6 and vehicle driving computer circuits respectively
Gas connect, running control circuit 8 respectively with main rotary drive mechanism 2, auxiliary rotary drive mechanism 3, telescopic mast 4, data processing
Circuit 5 and vehicle power circuit electrical connection.
Wherein described flat plane antenna 5 includes bearing base 51, shrinking connecting-rod 52 and antenna plate 53, described antenna plate 53
At least two, it surround the axis of bearing base 51 uniformly and is mutually interconnected by two shrinking connecting-rods 52 and the side surface of bearing base 51
Connect, and the described both ends of shrinking connecting-rod 52 are hinged with surface after antenna plate 53 and the side surface of bearing base 51 respectively, described day
Line plate 53 and the side surface of bearing base 51 are in 0 ° -60 ° angles, and bearing base 51 parallel with one another between each antenna plate 53, described
Lower surface is by aiding in rotary drive mechanism 3 to be connected with telescopic mast upper surface.
In addition described telescopic mast 4 and shrinking connecting-rod equal 52 are in hydraulically extensible bar, air pressure telescopic link and electric expansion bar
Any one, and stroke sensor 9 is all provided with described telescopic mast 4 and shrinking connecting-rod 52, and stroke sensor 9 is controlled with operation
Circuit 8 processed is electrically connected.
In the present embodiment, described chassis 101 is mutually interconnected between workbench 102 by least two flexibly positioned cushion blocks 10
Connect, and described flexibly positioned cushion block 10 is uniform around the axis of chassis 101, described turntable mechanism 104 is dimensional turntable and three
Any one in dimension state.
It is worth noting that, the described outer surface of concave surface antenna 6 sets at least one angel measuring instrument 11, and described angle
The axis of measuring instrument 11 is distributed with the diameter parallel of concave surface antenna 6, and angel measuring instrument 11 is electrically connected with running control circuit 8.
At the same time, described data processing circuit 7 includes leading to based on the data processing module based on FPGA, another data
Serial port module, wireless data communication module, data communication bus, coding and decoding module, signal amplification module and filtration module are interrogated,
Described data communication bus respectively with include based on FPGA based on data processing module data communication serial port module, without line number
Be electrically connected according to communication module, coding and decoding module, signal amplification module and filtration module, and described filtration module pass through it is logical
News serial port module is electrically connected with flat plane antenna 5, concave surface antenna 6 respectively, passes through data communication serial port module, wireless data communication
Module is electrically connected with vehicle driving computer circuits, and described running control circuit 8 is the control circuit based on DSP single-chip microcomputers,
And set wireless communication apparatus, accessory power supply, regulating circuit, power supply terminal, at least one I/O PORT COMs, at least one
Serial communication device and at least one control relay circuit, and pass through I/O PORT COMs, wireless communication apparatus, serial communication
Device and main rotary drive mechanism 2, auxiliary rotary drive mechanism 3, telescopic mast 4, data processing circuit 5 and vehicle driving computer electricity
Road is electrically connected, and is electrically connected, led to vehicle power circuit, accessory power supply and control relay circuit respectively by regulating circuit
Cross control relay circuit respectively with main rotary drive mechanism 2, auxiliary rotary drive mechanism 3, telescopic mast 4 and turntable mechanism 104
Electrical connection.
The present invention in the specific implementation, first to positioning base, main rotary drive mechanism, auxiliary rotary drive mechanism, stretch
Contracting post, flat plane antenna, concave surface antenna, data processing circuit and running control circuit are assembled, and are then specifically tied according to vehicle
Structure and use are needed, and positioning base is installed into vehicle specified location first, then control data processing circuit and operation
Circuit with vehicle driving computer circuits and vehicle power circuit, completes the installation and standby of the present invention respectively.
In the present invention runs operation, first according to the needs of communication operation, it is selected from flat plane antenna, concave surface antenna
In any one or two run simultaneously, carry out data communication operation, and when flat plane antenna, concave surface antenna is run simultaneously is, by
Data processing circuit carries out events in operation distribution to flat plane antenna, the communication of concave surface antenna data, then runs simultaneously, each processing
Different types of data communication operation needs：
Wherein when concave surface antenna is running operation, on the one hand drive plummer to be rotated by turntable mechanism, adjust concave surface
Antenna runs orientation, on the other hand adjusts the turntable mechanism connected between concave surface antenna and plummer and runs, adjustment concave surface antenna is bowed
Elevation angle degree, concave surface antenna communication orientation is finely adjusted, improves concave surface antenna data ability to communicate；
When flat plane antenna runs operation, on the one hand plummer is driven to be rotated and by aiding in rotation to drive by turntable mechanism
Motivation structure is run, and regulation flat plane antenna operation orientation, on the other hand according to communication needs, adjustment is connected flexible with flat plane antenna
The height of post is adjusted, so as to reach the purpose for improving flat plane antenna data communication interjob ability.
Wherein flat plane antenna, concave surface antenna operation operation while, separately can by the height of telescopic mast adjustment work platform,
First successive step flat plane antenna, concave surface aerial position.
The present invention is simple in construction, flexible using energy, and operation automaticity is high, on the one hand can effectively meet to car
Communication antenna work capacity is adjusted flexibly and the needs of data communication operation, on the other hand can be according to communication data type
And data communication amount, targetedly select different types of antenna to be run, improve data communication signal transmitting-receiving operation
Reliability and stability.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
- A kind of 1. autonomous driving vehicle data communication antenna structure, it is characterised in that：Described autonomous driving vehicle data Communication antenna structure includes positioning base, main rotary drive mechanism, auxiliary rotary drive mechanism, telescopic mast, flat plane antenna, concave surface Antenna, data processing circuit and running control circuit, described positioning base include chassis, workbench, plummer and turntable machine Structure, wherein described workbench is located at directly over chassis, and distribution parallel with chassis, by extremely between described workbench and chassis Few four telescopic masts are connected with each other, and each telescopic mast is uniform around chassis and table axis, described plummer totally two, Cloth surface and distribution parallel with workbench on the table, passes through turntable between described plummer lower surface and worktable upper surface Mechanism is connected with each other, described main rotary drive mechanism totally two, installed in workbench lower surface and respectively with two plummers Corresponding turntable mechanism is connected with each other, and totally one, described concave surface antenna, is hinged by turntable mechanism and plummer upper surface, and Described concave surface antenna axis and plummer upper surface are in 0 ° -90 ° angles, and described flat plane antenna is arranged on by telescopic mast On the plummer in concave surface antenna dead astern, and described flat plane antenna is by aiding in rotary drive mechanism to be arranged on telescopic mast upper end Face, and 0 ° -360 ° angle rotations are carried out around flexible mast axis, described data processing circuit and running control circuit are pacified It is electric with flat plane antenna, concave surface antenna and vehicle driving computer circuits respectively mounted in chassis upper surface, wherein data processing circuit Connection, described running control circuit respectively with main rotary drive mechanism, auxiliary rotary drive mechanism, telescopic mast, data processing Circuit and vehicle power circuit electrical connection.
- A kind of 2. autonomous driving vehicle data communication antenna structure according to claim 1, it is characterised in that：Described Flat plane antenna includes bearing base, shrinking connecting-rod and antenna plate, and described antenna plate at least two is equal around bearing base axis Cloth is simultaneously connected with each other by two shrinking connecting-rods and bearing base side surface, and described shrinking connecting-rod both ends respectively with antenna plate Surface and bearing base side surface are hinged afterwards, and described antenna plate and bearing base side surface are in 0 ° -60 ° angles, and each antenna Parallel with one another between plate, described bearing base lower surface is by aiding in rotary drive mechanism to be connected with telescopic mast upper surface.
- A kind of 3. autonomous driving vehicle data communication antenna structure according to claim 1 or 2, it is characterised in that：Institute The telescopic mast and shrinking connecting-rod stated are any one in hydraulically extensible bar, air pressure telescopic link and electric expansion bar, and described Telescopic mast and shrinking connecting-rod on be all provided with stroke sensor, and stroke sensor is electrically connected with running control circuit.
- A kind of 4. autonomous driving vehicle data communication antenna structure stated according to claim 1, it is characterised in that：Described bottom It is connected with each other between disk and workbench by least two flexibly positioned cushion blocks, and described flexibly positioned cushion block is around chassis axis Uniformly.
- A kind of 5. autonomous driving vehicle data communication antenna structure according to claim 1, it is characterised in that：Described Turntable mechanism is any one in dimensional turntable and three-dimensional state.
- A kind of 6. autonomous driving vehicle data communication antenna structure according to claim 1, it is characterised in that：Described Concave surface antenna outer surface sets at least one angel measuring instrument, and parallel with concave surface antenna axis point of described angel measuring instrument axis Cloth, and angel measuring instrument is electrically connected with running control circuit.
- A kind of 7. autonomous driving vehicle data communication antenna structure according to claim 1, it is characterised in that：Described Data processing circuit is included based on the data processing module based on FPGA, another data communication serial port module, wireless data communication Module, data communication bus, coding and decoding module, signal amplification module and filtration module, described data communication bus difference With include based on FPGA based on data processing module data communication serial port module, wireless data communication module, coding and decoding mould Block, signal amplification module and filtration module electrical connection, and described filtration module by communicate serial port module respectively with plane Antenna, the electrical connection of concave surface antenna, pass through data communication serial port module, wireless data communication module and vehicle driving computer circuits Electrical connection.
- A kind of 8. autonomous driving vehicle data communication antenna structure according to claim 1, it is characterised in that：Described Running control circuit is the control circuit based on DSP single-chip microcomputers, and sets wireless communication apparatus, accessory power supply, regulating circuit, power supply Binding post, at least one I/O PORT COMs, at least one serial communication device and at least one control relay circuit, and By I/O PORT COMs, wireless communication apparatus, serial communication device and main rotary drive mechanism, auxiliary rotary drive mechanism, stretch Contracting post, data processing circuit and the electrical connection of vehicle driving computer circuits, by regulating circuit respectively with vehicle power circuit, auxiliary Help power supply and control relay circuit to be electrically connected, revolved respectively with main rotary drive mechanism, auxiliary by control relay circuit Turn drive mechanism, telescopic mast and turntable mechanism electrical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711365998.5A CN107871920A (en) | 2017-12-18 | 2017-12-18 | A kind of autonomous driving vehicle data communication antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711365998.5A CN107871920A (en) | 2017-12-18 | 2017-12-18 | A kind of autonomous driving vehicle data communication antenna structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107871920A true CN107871920A (en) | 2018-04-03 |
Family
ID=61755908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711365998.5A Withdrawn CN107871920A (en) | 2017-12-18 | 2017-12-18 | A kind of autonomous driving vehicle data communication antenna structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107871920A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494969A (en) * | 2018-04-09 | 2018-09-04 | 苏州梵洁电器科技有限公司 | A kind of sweeping robot of smart mobile phone control |
| CN109068192A (en) * | 2018-09-25 | 2018-12-21 | 焦作华飞电子电器股份有限公司 | A kind of mining high electromagnetism interference wireless data communication device |
| CN113341403A (en) * | 2021-06-11 | 2021-09-03 | 南京驰韵科技发展有限公司 | Intelligent contraction antenna radar device for reconnaissance signal |
-
2017
- 2017-12-18 CN CN201711365998.5A patent/CN107871920A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494969A (en) * | 2018-04-09 | 2018-09-04 | 苏州梵洁电器科技有限公司 | A kind of sweeping robot of smart mobile phone control |
| CN109068192A (en) * | 2018-09-25 | 2018-12-21 | 焦作华飞电子电器股份有限公司 | A kind of mining high electromagnetism interference wireless data communication device |
| CN109068192B (en) * | 2018-09-25 | 2023-11-14 | 焦作华飞电子电器股份有限公司 | Mining wireless data communication device with high electromagnetic interference resistance |
| CN113341403A (en) * | 2021-06-11 | 2021-09-03 | 南京驰韵科技发展有限公司 | Intelligent contraction antenna radar device for reconnaissance signal |
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Application publication date: 20180403 |
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