CN103281108A - Vehicle-mounted smart antenna - Google Patents
Vehicle-mounted smart antenna Download PDFInfo
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- CN103281108A CN103281108A CN2013101505047A CN201310150504A CN103281108A CN 103281108 A CN103281108 A CN 103281108A CN 2013101505047 A CN2013101505047 A CN 2013101505047A CN 201310150504 A CN201310150504 A CN 201310150504A CN 103281108 A CN103281108 A CN 103281108A
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Abstract
The invention discloses a vehicle-mounted smart antenna. The smart antenna comprises a six-sector directional antenna and a smart antenna control part, wherein each sector covers a 60-degree sector; the smart antenna control part comprises a signal strength testing module, an antenna array switching module and a smart antenna selection control module; and the smart antenna control part is used for selecting and transmitting two path of optimal signals to a wireless module through the antenna array switching module according to a signal strength detection result. Through utilizing the vehicle-mounted smart antenna provided by the invention, on the one hand, the received signal strength is improved, and on the other hand, the interferences (including multipath interferences and Doppler frequency shift interferences) of peripheral signals are greatly avoided through utilizing the sector antenna, and accordingly, the communication performance of a ground cellular network to a high-speed mobile body is greatly improved.
Description
Technical field
The present invention relates to the mobile network communication technical field of transport facility, relate in particular to a kind of vehicle intelligent antenna.
Background technology
Along with the development of technology such as mobile Internet technology and cloud computing, portable terminal is more and more stronger to the demand of RFDC bandwidth, yet the wireless broadband communication under the high-speed moving state is a technical barrier all the time.Especially at TDSCDMA, be 120 kilometers/hour according to the highest translational speed of 3gpp standard protocol specifies TDD system, and the operation speed per hour of present domestic high-speed railway has all reached 300 kilometers/hour.Must make corresponding improvement technically, these systems can better support the broadband connections under the high-speed moving state.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is how to utilize the roof smart antenna to follow the trail of optimum signal on every side automatically in the Radio Station of high-speed mobile.
(2) technical scheme
For addressing the above problem, the invention provides a kind of vehicle intelligent antenna, comprising: six sector directional antennas, every sector cover 60 degree sectors; The smart antenna control section comprises signal strength detection module, antenna array handover module and smart antenna selection control module; Described smart antenna control section is used for the result according to the signal strength detection module, selects optimum two paths of signals to be transported to smart antenna through the antenna array handover module and selects in the control module.
Preferably, described six sector directional antennas comprise six secondary directional antennas, every slave antenna coverage horizontal sextant angle 60 degree.
Preferably, also comprise radome, described radome and described six sector directional antennas are positioned at roof, and described six sector directional antennas place below the described radome.
Preferably, described smart antenna control section places in the car.
Preferably, the signal strength signal intensity of each wireless network in institute's signal strength detection module monitors reception antenna.
Preferably, described signal comprises GSM, CDMA1x, WCDMA, CDMA EVDO and LTE signal.
Preferably, described antenna array handover module comprises antenna switch matrix, and the order that it sends according to smart antenna control part branch is with any two output ports that switch to appointment in the radio frequency input of six secondary directional antennas.
Preferably, described antenna switch matrix also comprises RF-coupled and power splitter spare, is used for the signal of different frequency range is coupled to a plurality of output ports, and the signal merit of same frequency range is assigned to a plurality of output ports.
Preferably, described smart antenna control section one of is at least selected output signal according to following mode in 6 secondary directional antennas: a) according to the wireless network standard, select the strongest two paths of signals to be input in the corresponding wireless module; B) according to vehicle position information and the network information of storage in advance, select different signals to be input in the corresponding wireless module in zones of different.
Preferably, described wireless network standard comprises GSM, CDMA1x, WCDMA, CDMA EVDO and LTE.
(3) beneficial effect
Vehicle intelligent antenna provided by the invention, improved the intensity that receives signal on the one hand, on the other hand owing to utilize the interference of the ambient signals that fan anteena avoids greatly, comprise that multipath disturbs and Doppler frequency shift disturbs, thereby promoted the communication performance of terrestrial cellular net at high-speed mobile unit greatly.
Description of drawings
Fig. 1 is the schematic diagram of Vehicular communication system master-plan of the present invention;
Fig. 2 divides the schematic diagram of fan antenna master-plan for roof of the present invention;
Fig. 3 is the schematic diagram of antenna array handover module of the present invention master-plan;
Fig. 4 is car antenna structural representation of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.
The basic design concept of in-vehicle wireless communication system will be a plurality of wireless modules of device in mobile unit, and this equipment can be connected to the different wireless cellular network in ground, and as WCDMA, thereby CDMA2000 etc. are as the bridge of consumer wideband data service on the car.
In-vehicle wireless communication system conceptive be similar to common desk-top modulator-demodulator, simultaneously done a lot of special enhancings according to the characteristics of carrier.What vehicle-ground wireless communication terminal traditionally adopted is omnidirectional antenna, and it is installed in the car top usually.For the wireless terminal of this pattern itself and standard, for example mobile phone does not have essential distinction, so its performance index especially often are unsatisfactory under high-speed case.Therefore adopt a kind of brand-new directional antenna design in the present invention, perhaps be referred to as the portable terminal of branch sector.
According to a kind of vehicle-mounted intelligent multiple sector antenna provided by the invention, it comprises:
Place the directional antenna 1 of six sectors of roof, unified being placed on below the radome 2, every sector covers 60 degree sectors; Place the smart antenna control section in the car, this part comprises the signal strength detection functional module, antenna array handover module and smart antenna are selected control module, control module selects optimum two paths of signals to be transported in the final wireless module through the antenna array switching matrix according to the result of signal strength detection.
The mode of roof directional antenna that can adopt aforementioned antenna realizes comprehensive coverings of 360 degree around the moving body, and it specifically comprises unified top antenna cover 2, is used for satisfying the anti-lightning strike requirement that the dustproof and waterproof of integrated antenna requires and satisfies demand for security.Antenna built-in 6 secondary directional antennas 1, every directional antenna 1 coverage horizontal sextant angle 60 degree.
The control system of aforementioned antenna comprises the signal strength detection module, and this module can be monitored the signal strength signal intensity of each wireless network in the reception antenna in real time, comprises GSM, CDMA1x, WCDMA, signals such as CDMA EVDO and LTE.
The control system of aforementioned antenna comprises a cover antenna switch matrix 3.The order that this matrix can send according to the smart antenna controller in real time is with any two output ports that switch to appointment in the radio frequency input of roof 6 slave antennas.Because output port is more, therefore in this matrix, also comprise RF-coupledly accordingly, power splitter spare can be coupled to the signal of different frequency range a plurality of output ports, the signal merit of same frequency range can also be assigned to a plurality of output ports simultaneously.
Aforementioned antenna comprises a smart antenna controller.In this controller, can in 6 slave antennas of roof, select suitable output signal according to the strategy of predefined.The strategy here can comprise: a) according to the wireless network standard, comprise GSM, and CDMA1x, WCDMA, CDMA EVDO and LTE etc. select the strongest two paths of signals to be input in the corresponding wireless module; B) according to the network information of vehicle position information and prior storage, select different signals to be input in the corresponding wireless module in zones of different.
According to a kind of design for vehicle-mounted high speed mobile terminal smart antenna disclosed by the invention, this design is utilized multi-antenna technology, adopts the directional transmissions receive mode to carry out radio communication according to the relative position between travelling carriage and the base station.Utilize antenna switch matrix to control the multi-sector antenna of roof 4 under this pattern, master-plan as shown in Figure 1.
In the present invention, top antenna adopts 6 fan antennas, and each antenna covers horizontal sextant angle 60 degree, thereby realizes the covering of comprehensive 360 degree, and unified placing in the radome of roof.Design as shown in Figure 2.
Then radio-frequency (RF) switch 5,6 slave antennas connect 6 radio-frequency (RF) switch altogether in each antenna bottom, thereby have constituted antenna switch matrix, as shown in Figure 3.
Two radio frequency inputs of each wireless module support are in order to support diversity reception, because in the motion of mobile terminals process, except Doppler frequency shift disturbs, it is the main cause that the wireless data service performance descends that multipath disturbs, so receive diversity can provide the receptivity of wireless module under multi-path environment greatly.In order to realize receive diversity better, utilize antenna switch matrix, it will select top-quality two antennas to offer the wireless module input in the roof multi-sector antenna, and the real-time signal quality of eating dishes without rice or wine of monitoring, continuous motion along with portable terminal, in different fan antennas, switch in real time, thereby the signal input of guaranteeing wireless module is two-way the best in quality all the time.
The benefit of bringing based on this pattern is as follows: utilize the narrow lobe antenna of sectorization, with respect to utilizing the roof omnidirectional antenna, the Doppler frequency shift of receiving disturbs and will reduce greatly; Especially for the system based on CDMA, significantly reduced with having reduced in the system that adjacent base station brings and disturbed; For wireless module provides better space diversity reception.
By the enforcement of above algorithm, make that travelling carriage communication quality in the high-speed mobile process is more reliable, according to laboratory simulations, adopt 60 degree fan antennas with respect to 360 degree omnidirectional antennas, it is because the decay that Doppler frequency shift causes has been reduced to original 1/4.Thereby strengthened network performance greatly.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.
Claims (10)
1. a vehicle intelligent antenna is characterized in that, comprising:
Six sector directional antennas, every sector cover 60 degree sectors;
The smart antenna control section comprises signal strength detection module, antenna array handover module and smart antenna selection control module;
Described smart antenna control section is used for the result according to the signal strength detection module, selects optimum two paths of signals to be transported to smart antenna through the antenna array handover module and selects in the control module.
2. antenna according to claim 1 is characterized in that, described six sector directional antennas comprise six secondary directional antennas, every slave antenna coverage horizontal sextant angle 60 degree.
3. antenna according to claim 1 and 2 is characterized in that, also comprises radome, and described radome and described six sector directional antennas are positioned at roof, and described six sector directional antennas place below the described radome.
4. antenna according to claim 1 and 2 is characterized in that, described smart antenna control section places in the car.
5. antenna according to claim 1 and 2 is characterized in that, the signal strength signal intensity of each wireless network in institute's signal strength detection module monitors reception antenna.
6. antenna according to claim 5 is characterized in that, described signal comprises GSM, CDMA1x, WCDMA, CDMA EVDO and LTE signal.
7. antenna according to claim 2, it is characterized in that, described antenna array handover module comprises antenna switch matrix, and the order that it sends according to smart antenna control part branch is with any two output ports that switch to appointment in the radio frequency input of six secondary directional antennas.
8. antenna according to claim 7 is characterized in that, described antenna switch matrix also comprises RF-coupled and power splitter spare, is used for the signal of different frequency range is coupled to a plurality of output ports, and the signal merit of same frequency range is assigned to a plurality of output ports.
9. according to claim 2,7 or 8 described antennas, it is characterized in that described smart antenna control section is selected one of at least output signal according to following mode in six secondary directional antennas:
A) according to the wireless network standard, select the strongest two paths of signals to be input in the corresponding wireless module;
B) according to vehicle position information and the network information of storage in advance, select different signals to be input in the corresponding wireless module in zones of different.
10. antenna according to claim 9 is characterized in that, described wireless network standard comprises GSM, CDMA1x, WCDMA, CDMA EVDO and LTE.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101505047A CN103281108A (en) | 2013-04-26 | 2013-04-26 | Vehicle-mounted smart antenna |
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| CN2013101505047A CN103281108A (en) | 2013-04-26 | 2013-04-26 | Vehicle-mounted smart antenna |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104159260A (en) * | 2014-08-26 | 2014-11-19 | 北京蓝山科技股份有限公司 | Multiple-antenna based mobile communication method for high-speed train |
| CN104243002A (en) * | 2014-09-16 | 2014-12-24 | 福建三元达通讯股份有限公司 | WLAN base station radio frequency achieving method based on multiple sectors |
| CN104980940A (en) * | 2015-07-07 | 2015-10-14 | 上海迈外迪网络科技有限公司 | Antenna selection method and antenna selection device in wireless network |
| CN105323874A (en) * | 2015-11-23 | 2016-02-10 | 张雪 | Wireless network communication base station |
| CN105556410A (en) * | 2014-12-31 | 2016-05-04 | 深圳市大疆创新科技有限公司 | Moving object, and antenna self aligning method and system thereof |
| CN106954175A (en) * | 2017-01-23 | 2017-07-14 | 斑马信息科技有限公司 | The aerial signal optimization system and method for internet automobile |
| CN108462543A (en) * | 2018-01-31 | 2018-08-28 | 厦门致联科技有限公司 | A kind of control method of underground communication device |
| CN112671500A (en) * | 2020-07-07 | 2021-04-16 | 北京交通大学 | Same frequency interference suppression method and corresponding communication terminal |
| CN114598362A (en) * | 2020-12-04 | 2022-06-07 | 海能达通信股份有限公司 | MIMO mobile communication method, communication system and storage device |
| CN114629574A (en) * | 2022-03-15 | 2022-06-14 | 京东方科技集团股份有限公司 | Wireless communication system and communication method thereof |
| WO2023216456A1 (en) * | 2022-05-07 | 2023-11-16 | 上海麦腾物联网技术有限公司 | Antenna system of vehicle-mounted intelligent terminal and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1209919A (en) * | 1996-01-29 | 1999-03-03 | 艾利森公司 | Method and apparatus for cellular radiotelephone base stations using selected multiple diversity reception |
| US20040166901A1 (en) * | 2003-02-17 | 2004-08-26 | Ntt Docomo, Inc. | Radio communication method and base station |
| CN102075986A (en) * | 2011-01-18 | 2011-05-25 | 京信通信系统（中国）有限公司 | Combined type relay system and state switching method thereof |
-
2013
- 2013-04-26 CN CN2013101505047A patent/CN103281108A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1209919A (en) * | 1996-01-29 | 1999-03-03 | 艾利森公司 | Method and apparatus for cellular radiotelephone base stations using selected multiple diversity reception |
| US20040166901A1 (en) * | 2003-02-17 | 2004-08-26 | Ntt Docomo, Inc. | Radio communication method and base station |
| CN102075986A (en) * | 2011-01-18 | 2011-05-25 | 京信通信系统（中国）有限公司 | Combined type relay system and state switching method thereof |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104159260A (en) * | 2014-08-26 | 2014-11-19 | 北京蓝山科技股份有限公司 | Multiple-antenna based mobile communication method for high-speed train |
| CN108123743A (en) * | 2014-09-16 | 2018-06-05 | 福建三元达网络技术有限公司 | WLAN base station signal receiving/transmission methods based on more sectors |
| CN104243002A (en) * | 2014-09-16 | 2014-12-24 | 福建三元达通讯股份有限公司 | WLAN base station radio frequency achieving method based on multiple sectors |
| CN108123744B (en) * | 2014-09-16 | 2020-09-22 | 安科讯(福建)科技有限公司 | Multi-sector switching WLAN base station radio frequency implementation method |
| CN108123743B (en) * | 2014-09-16 | 2020-08-04 | 安科讯(福建)科技有限公司 | W L AN base station signal receiving and transmitting method based on multiple sectors |
| CN108123747B (en) * | 2014-09-16 | 2020-08-04 | 安科讯(福建)科技有限公司 | W L AN base station signal coverage method based on sector switching |
| CN108123744A (en) * | 2014-09-16 | 2018-06-05 | 福建三元达网络技术有限公司 | A kind of WLAN base station radio-frequency implementation methods of more sector switchs |
| CN104243002B (en) * | 2014-09-16 | 2018-03-23 | 福建三元达网络技术有限公司 | A kind of WLAN base station radio-frequency implementation methods based on more sectors |
| CN108123747A (en) * | 2014-09-16 | 2018-06-05 | 福建三元达网络技术有限公司 | A kind of WLAN base station signal covering methods based on sector switch |
| US10523293B2 (en) | 2014-12-31 | 2019-12-31 | SZ DJI Technology Co., Ltd. | Mobile object and antenna automatic alignment method and system thereof |
| US11057087B2 (en) | 2014-12-31 | 2021-07-06 | SZ DJI Technology Co., Ltd. | Mobile object and antenna automatic alignment method and system thereof |
| CN108184275A (en) * | 2014-12-31 | 2018-06-19 | 深圳市大疆创新科技有限公司 | Mobile object and its antenna automatic aligning method, system |
| CN108184275B (en) * | 2014-12-31 | 2021-07-06 | 深圳市大疆创新科技有限公司 | Moving object and antenna automatic alignment method and system thereof |
| US10516454B2 (en) | 2014-12-31 | 2019-12-24 | SZ DJI Technology Co., Ltd. | Mobile object and antenna automatic alignment method and system thereof |
| WO2016106622A1 (en) * | 2014-12-31 | 2016-07-07 | 深圳市大疆创新科技有限公司 | Moving object and automatic antenna alignment method and system thereof |
| CN105556410A (en) * | 2014-12-31 | 2016-05-04 | 深圳市大疆创新科技有限公司 | Moving object, and antenna self aligning method and system thereof |
| CN104980940A (en) * | 2015-07-07 | 2015-10-14 | 上海迈外迪网络科技有限公司 | Antenna selection method and antenna selection device in wireless network |
| CN105323874A (en) * | 2015-11-23 | 2016-02-10 | 张雪 | Wireless network communication base station |
| CN106954175A (en) * | 2017-01-23 | 2017-07-14 | 斑马信息科技有限公司 | The aerial signal optimization system and method for internet automobile |
| CN108462543B (en) * | 2018-01-31 | 2020-12-29 | 厦门致联科技有限公司 | Control method of underground communication device |
| CN108462543A (en) * | 2018-01-31 | 2018-08-28 | 厦门致联科技有限公司 | A kind of control method of underground communication device |
| CN112671500A (en) * | 2020-07-07 | 2021-04-16 | 北京交通大学 | Same frequency interference suppression method and corresponding communication terminal |
| CN112671500B (en) * | 2020-07-07 | 2024-01-26 | 北京交通大学 | Co-channel interference suppression method and corresponding communication terminal |
| CN114598362A (en) * | 2020-12-04 | 2022-06-07 | 海能达通信股份有限公司 | MIMO mobile communication method, communication system and storage device |
| CN114598362B (en) * | 2020-12-04 | 2023-09-05 | 海能达通信股份有限公司 | MIMO mobile communication method, communication system and storage device |
| CN114629574A (en) * | 2022-03-15 | 2022-06-14 | 京东方科技集团股份有限公司 | Wireless communication system and communication method thereof |
| CN114629574B (en) * | 2022-03-15 | 2024-03-22 | 京东方科技集团股份有限公司 | Wireless communication system and communication method thereof |
| WO2023216456A1 (en) * | 2022-05-07 | 2023-11-16 | 上海麦腾物联网技术有限公司 | Antenna system of vehicle-mounted intelligent terminal and method |
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Application publication date: 20130904 |