CN205901807U - A network card and automobile -mounted terminal for car communication network - Google Patents
A network card and automobile -mounted terminal for car communication network Download PDFInfo
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- CN205901807U CN205901807U CN201620839818.7U CN201620839818U CN205901807U CN 205901807 U CN205901807 U CN 205901807U CN 201620839818 U CN201620839818 U CN 201620839818U CN 205901807 U CN205901807 U CN 205901807U
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Abstract
The utility model relates to a network card and automobile -mounted terminal for car communication network, the network card includes: use IEEE 802.11p radio communication protocol's baseband chip, radio frequency transceiving ware, radio frequency front end, switch circuit and be used for receiving and dispatching radio signal's antenna, radio frequency transceiving ware, radio frequency front end and switch circuit are connected respectively to the baseband chip, and the radio frequency transceiving ware sends clock signal to baseband chip through the clock signal interface, the radio frequency transceiving ware is connected with radio frequency front end, radio frequency front end passes through switch circuit and connects the antenna. The utility model discloses can realize the hookup between car and the all ring edge borders, realize between the vehicle and the data interchange between vehicle and the intelligent transportation system roadside infrastructure, can help the vehicle collection and share instant information and area data, let the vehicle possess the ability of perception surrounding environment, can make rapid adjustment when barrier or driving condition change meetting, can reduce the emergence of traffic accident, optimize the traffic greatly.
Description
Technical field
This utility model is related to intelligent transportation field, more particularly, it relates to a kind of network interface card for car networking communication and
Car-mounted terminal using this network interface card.
Background technology
Automobile is swiftly passing object, when lifting real time security and intelligent traffic administration system, the network such as 3g/4g
Scheme is conceived to and covers, using long haul communication, the situation of remote to obtain whole region on a large scale, but, for occurring
Near sports car, hundreds of meter of real time information is but difficult to obtain, and such system is even more nothing in a helpless situation for the traffic of burst
Plan,
Make up this not enough, need prior art is improved, to realize between vehicle and vehicle is handed over intelligence
Data exchange between way system (intelligent transport system, abbreviation its) roadside infrastructure.
Utility model content
The technical problems to be solved in the utility model is, for the drawbacks described above of prior art, provides one kind to be used for car
The network interface card of connected network communication and the car-mounted terminal using this network interface card.
This utility model solves its technical problem and be the technical scheme is that a kind of net for car networking communication of construction
Card, comprising: using the baseband chip of ieee 802.11p wireless communication protocol, RF transceiver, radio-frequency front-end, on-off circuit,
And the antenna for transmitting/receiving wireless signal, wherein,
Described baseband chip connects described RF transceiver, described radio-frequency front-end and described on-off circuit respectively, described
RF transceiver passes through interface clock signal tranmitting data register signal to described baseband chip；Described RF transceiver and described radio frequency
Front end connects；Described radio-frequency front-end passes through described on-off circuit and connects described antenna.
In the network interface card for car networking communication described in the utility model, described antenna includes first antenna and second day
Line, described on-off circuit includes first switch circuit and second switch circuit, and described first switch circuit connects described first day
Line, described second switch circuit connects described second antenna；Described radio-frequency front-end connects described first switch circuit and respectively
Two on-off circuits；Described baseband chip connects described first switch circuit and second switch circuit respectively.
In the network interface card for car networking communication described in the utility model, described radio-frequency front-end includes receives link and sends out
Penetrate link, described receives link and transmitting chain connect described first switch circuit and second switch circuit respectively.
In the network interface card for car networking communication described in the utility model, described network interface card supports wsmp passage and/or ip
Passage.
In the network interface card for car networking communication described in the utility model, described network interface card supports that multichannel switches in real time.
In the network interface card for car networking communication described in the utility model, also include: being connected with described radio-frequency front-end,
For providing the crystal oscillator of 40mhz clock signal for described radio-frequency front-end.
In the network interface card for car networking communication described in the utility model, described baseband chip passes through spi interface, two-way
Difference receiving and transmitting signal line and general i/o mouth are connected with described RF transceiver.
In the network interface card for car networking communication described in the utility model, described network interface card is included for connecting external circuit
Usb interface, spi interface, power supply interface and for start configuration i/o mouth.
In the network interface card for car networking communication described in the utility model, the working frequency range of signal is 5.850ghz-
5.925ghz, a width of 10mhz or 20mhz of frequency band, transfer rate is 3mbps-27mbps.
This utility model also provides a kind of car-mounted terminal, and described car-mounted terminal includes the above-mentioned net for car networking communication
Card.
Implement the network interface card for car networking communication of the present utility model, have the advantages that net of the present utility model
Card includes the baseband chip using ieee 802.11p wireless communication protocol, and loading network interface card of the present utility model can be to realize car
Data exchange between and between vehicle and intelligent transportation system roadside infrastructure, can also realize between car and car,
Between car and building, between car and infrastructure, coupling even between automobile and pedestrian and non-motor vehicle.Vapour can be helped
Car is collected and is shared instant messages and area data, and these data can be linked to a centralized infrastructure network.This will be big
Optimize greatly traffic, shorten hourage and so that stroke more has predictability.Load network interface card of the present utility model by automobile
Have the ability of perception surrounding, rapid adjustment can be made when running into barrier or driving conditions change.
This and other vehicles and road infrastructure information exchange energy reduces the generation of vehicle accident to a great extent.
Brief description
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the network interface card for car networking communication of the present utility model；
The implication of each label of in figure is as follows:
100th, baseband chip；200th, RF transceiver；300th, radio-frequency front-end；400th, on-off circuit；401st, first switch electricity
Road；402nd, second switch circuit；500th, antenna；501st, first antenna；502nd, the second antenna；600th, crystal oscillator.
Specific embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, now comparison accompanying drawing is detailed
Specific embodiment of the present utility model is described.
The utility model discloses a kind of network interface card for car networking communication and the car-mounted terminal using this network interface card, permissible
It is applied to intelligent transportation field, by automobile with automobile (v2v), automobile and roadside device (v2i), automobile and people (v2p) interconnection mutually
Logical, it is effectively integrated car, road, people form efficient transportation network, are effectively prevented from the generation of vehicle accident.This equipment can be applicable to
Scene in detail below: operation fleet management, traffic congestion information transmitting-receiving, automatic parking and other pay by mails application (congestion expense,
Parking fee), traffic and travel information service, traffic signal synergistic application, active safety application (for example: Dangerous Area is pre- in advance
Police, intersection anticollision early warning, knock into the back and warning of overtaking other vehicles, visualization show a range of all road vehicles).
As shown in figure 1, being the structural representation of the network interface card for car networking communication of the present utility model.Of the present utility model
Network interface card for car networking communication, comprising: using the baseband chip 100 of ieee 802.11p wireless communication protocol, radio-frequency receiving-transmitting
Device 200, radio-frequency front-end 300, on-off circuit 400 and the antenna 500 for transmitting/receiving wireless signal, wherein,
Baseband chip 100 connects RF transceiver 200, radio-frequency front-end 300 and on-off circuit 400, radio-frequency receiving-transmitting respectively
Device 200 passes through interface clock signal tranmitting data register signal to baseband chip 100；RF transceiver 200 is with radio-frequency front-end 300 even
Connect；Radio-frequency front-end 300 connects antenna 500 by on-off circuit 400.
Baseband chip 100 is used for being processed signal by ieee 802.11p wireless communication protocol standards, comprises externally
The usb interface connecting, spi interface, and some i/o mouths for starting configuration.Baseband chip 100 passes through spi interface, two-way
Difference receiving and transmitting signal line and general i/o mouth are connected with RF transceiver 200.Baseband chip 100 also outputs control signals to be penetrated
Frequency front end 300 and on-off circuit 400, and the break-make of controlling switch circuit 400.
RF transceiver 200 is used for receiving and modulating the signal sending from baseband chip 100, and the signal after modulation is sent out
Give radio-frequency front-end 300；RF transceiver 200 is additionally operable to receive and demodulate the signal sending over from radio-frequency front-end 300, will solve
Signal after tune sends to baseband chip 100.When RF transceiver 200 is supplied clock, is exported a road simultaneously by the crystal oscillator of 40mhz
Clock is to baseband chip 100.
Radio-frequency front-end 300 is used for carrying out pretreatment to signal, comprising: band filter, power amplifier, low noise amplification
Device, low pass filter, and some mate inductance, electric capacity, after through on-off circuit connect double antenna.Wherein, power amplifier
For amplifying power, signal is made to amplify.Band filter and low pass filter are used for selecting default signal frequency range.Low noise is put
Big device, the very low amplifier of noise coefficient.For when amplifying small-signal, the noise reducing amplifier itself is done to signal
Disturb, to improve the signal to noise ratio of output.
Further, radio-frequency front-end 300 includes receives link and transmitting chain, and receives link and transmitting chain connect respectively
First switch circuit 401 and second switch circuit 402.
On-off circuit 400 is connected with baseband chip 100, radio-frequency front-end 300 and antenna 500 respectively.In the present embodiment,
On-off circuit 400 includes first switch circuit 401 and second switch circuit 402, and radio-frequency front-end 300 connects first switch electricity respectively
Road 401 and second switch circuit 402；Baseband chip 100 connects first switch circuit 401 and second switch circuit 402 respectively.
Antenna 500 is used for receiving the signal in the external world and sends a signal to the external world, and network interface card of the present utility model can be configured to
Single antenna or double antenna pattern, when being configured to double antenna pattern, antenna 500 includes first antenna 501 and the second antenna 502,
First antenna 501 and the second antenna 502 have corresponded to reception, sending function respectively.First antenna 501 connects first switch circuit
401, the second antenna 502 connects second switch circuit 402.
The network interface card that this utility model communicates for car networking also includes the crystal oscillator 600 for providing time reference, crystal oscillator 600
It is connected with radio-frequency front-end 300, provide 40mhz clock signal for radio-frequency front-end 300.
The signal in the external world during network interface card receipt signal for car networking communication of the present utility model, is received by antenna 500, and
Radio-frequency front-end 300 is sent the signal to by on-off circuit 400, radio-frequency front-end 300 is carried out after pretreatment to the signal receiving, will
Pretreated signal sends to RF transceiver 200, and RF transceiver 200 is demodulated to the signal receiving, and then will
Signal after demodulation sends to baseband chip 100, and the signal that baseband chip 100 receives from RF transceiver 200 is according to ieee
802.11p wireless communication protocol standards are processed, for using.
During network interface card sending signal for car networking communication of the present utility model, sent a signal to by baseband chip 100 and penetrate
Frequency front end 200, radio-frequency front-end 200 is modulated to the signal receiving, then the signal after modulation is sent to radio-frequency front-end
300；Radio-frequency front-end 300 carries out pretreatment to signal, and pretreated signal is sent to antenna 500 through on-off circuit 400, letter
Number sent to the external world by antenna 500.
The network interface card that this utility model is used for car networking communication supports wsmp passage and/or ip passage, i.e. network interface card supports wsmp
Passage or ip passage, or network interface card supports wsmp passage and ip passage simultaneously.
This utility model be used for car networking communication network interface card also support that multichannel switches in real time, such as: support control channel with
Service channel switches in real time.
Network interface card for car networking communication of the present utility model also includes connecing for the usb interface being connected, spi with the external world
Mouth, power supply interface and the i/o mouth for starting configuration.
Network interface card for car networking communication of the present utility model, supports that ieee 802.11p, ieee 1609.4 wirelessly assist
View, the working frequency range of signal is 5.850ghz-5.925ghz, a width of 10mhz or 20mhz of frequency band, and transfer rate is 3mbps-
27mbps.
The invention also discloses a kind of car-mounted terminal, including the above-mentioned network interface card for car networking communication.
Now common on the market wireless network card, in addition to ieee 802.11p, is directly used in bus or train route cooperative system, suffers from
Significantly defect.Table 1 below is a contrast of the communication context between common wireless technology and time delay.
| Wireless technology | Communication range | Time delay |
| 5.9ghz/ieee 802.11p | 1000 meters | 0.0002 second |
| 2.5g-3g cell phone | 4～6 kms | 1.5～3.5 seconds |
| Bluetooth | 10 meters | 3～4 seconds |
| Ieee 802.11 WLAN | 1000 meters | 3～5 seconds |
| Ieee 802.16 wireless MAN | 5～10 kms | 1.5～3.5 seconds |
| Received terrestrial digital broadcasting | 30～50 kms | 10～20 seconds |
| Duplexing satellite communication | na | More than 60 seconds |
Table 1, the contrast of common wireless technology
In terms of time delay, the time delay of ieee 802.11p agreement is the shortest, and automobile can be allowed to have ring around perception
The ability in border, can make rapid adjustment when running into barrier or driving conditions change.This and other vehicles
And the information exchange energy of road infrastructure reduces the generation of vehicle accident to a great extent.
Ieee 802.11p, this communications protocol is used primarily in the wireless telecommunications of auto electronic.It is from ieee on setting
802.11, to expand extension, to meet intelligent transportation system (intelligent transportation systems, its)
Related application.The aspect of application includes between the vehicle of two-forty and vehicle and 5.9 gigahertzs (5.85-5.925 gigahertz)
Data between the standard its roadside infrastructure of wave band exchanges.Carry the network interface card of the v2x technology based on 802.11p, full
Sufficient ieee 802.11p and 1609 serial protocols stacks, merge multiple station-keeping modes to provide track level positioning, can meet many
Plant safety applications.
This utility model is used for the network interface card of car networking communication, including the base band using ieee 802.11p wireless communication protocol
Chip, strengthens the ability to bear to signal multipath propagation using the bandwidth of 10mhz frequency.Reducing bandwidth makes the ginseng of physical layer
Number is the twice of ieee 802.11a.On the other hand, the scattering effect of Doppler, the police of twice is decreased using less bandwidth
Guard against interval and decrease the intersymbol interference that multi-path transmission causes.This also means that, its all parameter is 802.11a in time domain
Twice.With respect to ieee 802.11a, it is the guarantor that length is 1600ns that ieee 802.11p changes a most important parameter
Shield interval (gi).This protection interval allows 802.11p to tolerate bigger root-mean-square (rms) delay spread, and this also just anticipates
Taste the vehicle environmental that this selection scheme can be used for outdoor high-speed mobile, to meet bus or train route cooperative system to WLAN
Requirement.
Load automobile cooperation v2x (including v2v, v2i, the v2p) safety applications of network interface card of the present utility model, achievable traffic
Accident is greatly reduced, traffic congestion substantially reduces, automobile energy consumption reaches most preferably.In terms of reducing vehicle accident, American Highway is handed over
Logical safety management bureau (nhtsa) was once predicted, carry the middle light vehicle of v2v technology it can be avoided that 80% vehicle accident, heavy
Car it can be avoided that 71% vehicle accident；Carry v2i technology vehicle it can be avoided that 12% vehicle accident；Gather around alleviating traffic
Stifled aspect, can make blocking reduce 60%, short-distance transport efficiency improves 70%, make the traffic capacity of existing road net improve 2～3
Times；In terms of reducing energy consumption, stop frequency can reduce 30%, and running time reduces by 13% to 45%, realizes reducing oil consumption 15%.
Network interface card of the present utility model can be realized between car and car, between car and building, between car and infrastructure, very
To coupling between automobile and pedestrian and non-motor vehicle.Automobile can be helped to collect and share instant messages and area data, this
A little data can be linked to a centralized infrastructure network.This will significantly optimize traffic, and shorten hourage and make stroke
More there is predictability.Load the ability that the network interface card based on 802.11p agreement has perception surrounding by automobile, running into
Rapid adjustment can be made when barrier or driving conditions change.This and other vehicles and road infrastructure
Information exchange energy reduces the generation of vehicle accident to a great extent.
Above example is only that technology design of the present utility model and feature are described, its object is to allow and is familiar with technique
Personage will appreciate that content of the present utility model and implement accordingly, protection domain of the present utility model can not be limited.All with
Impartial change and modification that this utility model right is done, all should belong to this utility model claim covers model
Enclose.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations all should belong to the protection domain of this utility model claims.
Claims (10)
1. a kind of network interface card for car networking communication is it is characterised in that include: using ieee 802.11p wireless communication protocol
Baseband chip (100), RF transceiver (200), radio-frequency front-end (300), on-off circuit (400) and for transmitting/receiving wireless letter
Number antenna (500), wherein,
Described baseband chip (100) connects described RF transceiver (200), described radio-frequency front-end (300) respectively and described opens
Close circuit (400), described RF transceiver (200) passes through interface clock signal tranmitting data register signal to described baseband chip
(100)；Described RF transceiver (200) is connected with described radio-frequency front-end (300)；Described radio-frequency front-end (300) passes through described opening
Close circuit (400) and connect described antenna (500).
2. the network interface card for car networking communication according to claim 1 is it is characterised in that described antenna (500) includes the
One antenna (501) and the second antenna (502), described on-off circuit (400) includes first switch circuit (401) and second switch electricity
Road (402), described first switch circuit (401) connects described first antenna (501), and described second switch circuit (402) connects
Described second antenna (502)；Described radio-frequency front-end (300) connects described first switch circuit (401) and second switch electricity respectively
Road (402)；Described baseband chip (100) connects described first switch circuit (401) and second switch circuit (402) respectively.
3. the network interface card for car networking communication according to claim 2 is it is characterised in that described radio-frequency front-end (300) wraps
Include receives link and transmitting chain, described receives link and transmitting chain connect described first switch circuit (401) and respectively
Two on-off circuits (402).
4. the network interface card for car networking communication according to claim 1 is it is characterised in that also include:
Be connected with described radio-frequency front-end (300), the crystal oscillator for providing 40mhz clock signal for described radio-frequency front-end (300)
(600).
5. the network interface card for car networking communication according to claim 1 is it is characterised in that described baseband chip (100) leads to
Cross spi interface, two-pass DINSAR receiving and transmitting signal line and general i/o mouth to be connected with described RF transceiver (200).
6. the network interface card for car networking communication according to claim 1 is it is characterised in that described network interface card is also included for even
Connect usb interface, spi interface, power supply interface and the i/o mouth for starting configuration of external circuit.
7. the network interface card for car networking communication according to claim 1 is it is characterised in that described network interface card supports wsmp passage
And/or ip passage.
8. the network interface card for car networking communication according to claim 1 is it is characterised in that described network interface card supports that multichannel is real
When switching.
9. the network interface card for car networking communication according to claim 1 is it is characterised in that the working frequency range of signal is
5.850ghz-5.925ghz, a width of 10mhz or 20mhz of frequency band, transfer rate is 3mbps-27mbps.
10. a kind of car-mounted terminal it is characterised in that described car-mounted terminal include described in any one of claim 1-9 for car
The network interface card of connected network communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620839818.7U CN205901807U (en) | 2016-08-04 | 2016-08-04 | A network card and automobile -mounted terminal for car communication network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620839818.7U CN205901807U (en) | 2016-08-04 | 2016-08-04 | A network card and automobile -mounted terminal for car communication network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205901807U true CN205901807U (en) | 2017-01-18 |
Family
ID=57782796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620839818.7U Active CN205901807U (en) | 2016-08-04 | 2016-08-04 | A network card and automobile -mounted terminal for car communication network |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109195140A (en) * | 2018-10-31 | 2019-01-11 | 维沃移动通信有限公司 | A kind of radio-frequency module, D2D communication means and mobile terminal |
| CN112466142A (en) * | 2020-11-13 | 2021-03-09 | 浙江吉利控股集团有限公司 | Vehicle scheduling method, device and system and storage medium |
| CN112769443A (en) * | 2021-04-07 | 2021-05-07 | 上海麦腾物联网科技有限公司 | Internet of vehicles 5G communication system |
| CN113098541A (en) * | 2019-12-20 | 2021-07-09 | 大唐高鸿数据网络技术股份有限公司 | Antenna device and automobile |
| WO2024031962A1 (en) * | 2022-08-11 | 2024-02-15 | 中兴通讯股份有限公司 | Tracker |
-
2016
- 2016-08-04 CN CN201620839818.7U patent/CN205901807U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109195140A (en) * | 2018-10-31 | 2019-01-11 | 维沃移动通信有限公司 | A kind of radio-frequency module, D2D communication means and mobile terminal |
| CN109195140B (en) * | 2018-10-31 | 2021-07-23 | 维沃移动通信有限公司 | Radio frequency module, D2D communication method and mobile terminal |
| CN113098541A (en) * | 2019-12-20 | 2021-07-09 | 大唐高鸿数据网络技术股份有限公司 | Antenna device and automobile |
| CN113098541B (en) * | 2019-12-20 | 2022-09-02 | 大唐高鸿智联科技(重庆)有限公司 | Antenna device and automobile |
| CN112466142A (en) * | 2020-11-13 | 2021-03-09 | 浙江吉利控股集团有限公司 | Vehicle scheduling method, device and system and storage medium |
| CN112466142B (en) * | 2020-11-13 | 2022-06-21 | 浙江吉利控股集团有限公司 | Vehicle scheduling method, device and system and storage medium |
| CN112769443A (en) * | 2021-04-07 | 2021-05-07 | 上海麦腾物联网科技有限公司 | Internet of vehicles 5G communication system |
| WO2024031962A1 (en) * | 2022-08-11 | 2024-02-15 | 中兴通讯股份有限公司 | Tracker |
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