CN105206922A - Vehicle-mounted system based on CDMA2000 - Google Patents
Vehicle-mounted system based on CDMA2000 Download PDFInfo
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- CN105206922A CN105206922A CN201510553086.5A CN201510553086A CN105206922A CN 105206922 A CN105206922 A CN 105206922A CN 201510553086 A CN201510553086 A CN 201510553086A CN 105206922 A CN105206922 A CN 105206922A
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- cdma2000
- onboard system
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- vehicle
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Abstract
The invention provides a vehicle-mounted system based on CDMA2000. The vehicle-mounted system comprises a vehicle-mounted system main body and an antenna which is arranged on the vehicle-mounted system main body and is in signal transmission with the vehicle-mounted system main body. The vehicle-mounted system is characterized in that the antenna is a CDMA2000 meta-material antenna; the vehicle-mounted system main body is provided with a filter circuit matched with the CDMA2000 meta-material antenna; the CDMA2000 meta-material antenna comprises a substrate and a circuit printed on the substrate; the vehicle-mounted system main body comprises a main board; the main board is provided with a center processor, a CDMA2000 module and a micro-control unit, which are electrically connected in sequence; the CDMA2000 module is electrically connected with a WIFI module; and the filter circuit is electrically connected with the CDMA2000 module and the CDMA2000 meta-material antenna. The beneficial effects of the vehicle-mounted system are that the vehicle-mounted system is small in antenna size and convenient to install, and has good omnidirectivity, gain performance and mobility in receiving signals.
Description
Technical field
The present invention relates to a kind of onboard system, particularly relate to a kind of onboard system based on CDMA2000.
Background technology
So-called onboard system, refers to the product that can use on automobile or similar tool movement, conveniently uses in motor racing, commonly vehicle mounted MP 3, MP4, GPS, vehicle-carrying DVD, vehicle-mounted computer, onboard mobile telephone, in-car TV and vehicle-mounted hard disks machine etc.
Traditional based on the CDMA2000 antenna in the onboard system of CDMA2000 in order to well stable signal can be received, need external installation, and antenna needs the feeder line of external length at least 3 meters by cabling in car to car external reception CDMA2000 signal, installation in trouble is required great effort, and size and weight all do not have advantage, line length wire diameter characteristic is poor; And due to CDMA2000 antenna because be external, easily cause loss and damage, and its omni-directional, incremental all relative with mobility poor.
Summary of the invention
The object of this invention is to provide a kind of onboard system based on CDMA2000, solve above-mentioned one or multiple of the prior art.
A kind of onboard system based on CDMA2000 provided by the invention, comprise onboard system main body and to be arranged in onboard system main body and to carry out with it the antenna of Signal transmissions, it is characterized in that: antenna is CDMA2000 Super-material antenna, onboard system main body is provided with the filter circuit mated with this CDMA2000 Super-material antenna, CDMA2000 Super-material antenna comprises substrate and is printed on the circuit on substrate, onboard system main body comprises mainboard, mainboard is provided with the central processing unit be electrically connected successively, CDMA2000 module and micro-control unit, CDMA2000 module is also electrically connected with WIFI module, filter circuit is electrically connected with CDMA2000 module and CDMA2000 Super-material antenna respectively.
The invention has the beneficial effects as follows: the antenna volume of onboard system is little, easy for installation; Received signal strength has good omni-directional, incremental and mobility.
In some embodiments, CDMA2000 module is connected with central processing unit by USB interface.Wherein, USB interface and USB are external bus standard.
In some embodiments, CDMA2000 module is connected with micro-control unit by UART interface.UART interface and Universal Serial Bus, for asynchronous communication.This bus two-way communication, can realize full duplex transmission and reception.
In some embodiments, CDMA2000 Super-material antenna is connected by wire bonds with filter circuit.
In some embodiments, CDMA2000 Super-material antenna is fixedly installed in the headrest of automotive seat.Not only be convenient to install but also can onboard system be made elegant in appearance while the good Received signal strength of guarantee.
In some embodiments, CDMA2000 Super-material antenna is fixedly installed in the clear position in automobile center console.
Accompanying drawing explanation
Figure 1 shows that a kind of theory diagram based on CDMA2000 onboard system that embodiment provides;
Figure 2 shows that the theory diagram that in embodiment, CDMA2000 Super-material antenna is connected with onboard system mainboard;
Figure 3 shows that the CDMA2000 Super-material antenna structural representation in embodiment;
Figure 4 shows that the syndeton schematic diagram of CDMA2000 Super-material antenna in embodiment and filter circuit.
Embodiment
The invention provides a kind of onboard system based on CDMA2000, below in conjunction with the drawings and specific embodiments, the present invention described in detail:
As Figure 1-3, a kind of onboard system based on CDMA2000 provided by the invention, comprise onboard system main body 1 and to be arranged in onboard system main body 1 and to carry out with it the antenna of Signal transmissions, antenna is CDMA2000 Super-material antenna 2, onboard system main body 1 is provided with the circuit 22 that filter circuit 3, the CDMA2000 Super-material antenna 2 of mating with this CDMA2000 Super-material antenna 2 comprises substrate 21 and is printed on substrate.Onboard system main body 1 comprises mainboard 11, mainboard 11 is provided with central processing unit 12 (i.e. CPU), CDMA2000 module 13 and the micro-control unit 14 (i.e. MCU) be electrically connected successively, CDMA2000 module 13 is also electrically connected with WIFI module 15, and filter circuit is electrically connected with CDMA2000 module 13 and CDMA2000 Super-material antenna 3 respectively.
It is low that Super-material antenna possesses loss, better incremental, and the advantage that intensity is high, volume is little, has good omni-directional, incremental and mobility.CDMA2000 Super-material antenna 2 is used in the present invention, and design the filter circuit 3 matched with it, instead of original antenna, can the built-in Che Nei of being installed on or even be installed in onboard system, not fragile, eliminate in background technology at least 3 meters of feeder lines needing external installation, easier for installation, and owing to have employed Super-material antenna, Received signal strength of the present invention is made to have good omni-directional, incremental and mobility, High Data Rate upload and download function can be provided for automobile, the speech quality of high definition, enrich automotive infotainment service function and improved corresponding performance, for automotive infotainment service provides the Base communication service of high-quality.Wherein, the filter circuit matched with this CDMA2000 Super-material antenna carries out adaptability according to the impedance of this antenna and characterisitic parameter and mates.
In addition, CDMA2000 module 13 is connected with central processing unit 12 by USB interface, has speed and transmits fast advantage.
CDMA2000 module logical 13 is crossed UART interface and is connected with micro-control unit 15, simple and practical.
CDMA2000 Super-material antenna 3 and filter circuit 3 are welded to connect by wire 4.As Fig. 4, first one end of wire 4 can be welded with the solder joint 23 of this CDMA2000 Super-material antenna 3 during installation, this CDMA2000 Super-material antenna 3 is fixed on clear position in the console in automobile with gum (if onboard system is installed on Automobile seat back, then CDMA2000 Super-material antenna 3 can be fixed in the headrest of automotive seat), then be connected with the solder joint 31 of filter circuit by the exposed metal/bare metal end 41 of wire 4 other end, wherein filter circuit 3 accessible site is on onboard system mainboard.Said structure had not only been convenient to install but also can onboard system be made elegant in appearance while the good Received signal strength of guarantee.
The invention has the beneficial effects as follows, the antenna volume of onboard system is little, easy for installation; Received signal strength has good omni-directional, incremental and mobility.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (6)
1. the onboard system based on CDMA2000, comprise onboard system main body and to be arranged in described onboard system main body and to carry out with it the antenna of Signal transmissions, it is characterized in that: described antenna is CDMA2000 Super-material antenna, described onboard system main body is provided with the filter circuit mated with this CDMA2000 Super-material antenna, the circuit that described CDMA2000 Super-material antenna comprises substrate and prints on the substrate, described onboard system main body comprises mainboard, described mainboard is provided with the central processing unit be electrically connected successively, CDMA2000 module and micro-control unit, described CDMA2000 module is also electrically connected with WIFI module, described filter circuit is electrically connected with described CDMA2000 module and described CDMA2000 Super-material antenna respectively.
2. onboard system according to claim 1, is characterized in that, described CDMA2000 module is connected with described central processing unit by USB interface.
3. onboard system according to claim 2, is characterized in that, described CDMA2000 module is connected with described micro-control unit by UART interface.
4., according to the onboard system described according to any one of claims 1 to 3, it is characterized in that, described CDMA2000 Super-material antenna is connected by wire bonds with described filter circuit.
5. onboard system according to claim 4, is characterized in that, described CDMA2000 Super-material antenna is fixedly installed in the headrest of automotive seat.
6. onboard system according to claim 4, is characterized in that, described CDMA2000 Super-material antenna is fixedly installed in the clear position in automobile center console.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510553086.5A CN105206922A (en) | 2015-09-01 | 2015-09-01 | Vehicle-mounted system based on CDMA2000 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510553086.5A CN105206922A (en) | 2015-09-01 | 2015-09-01 | Vehicle-mounted system based on CDMA2000 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105206922A true CN105206922A (en) | 2015-12-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510553086.5A Pending CN105206922A (en) | 2015-09-01 | 2015-09-01 | Vehicle-mounted system based on CDMA2000 |
Country Status (1)
| Country | Link |
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| CN (1) | CN105206922A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI818078B (en) * | 2018-09-18 | 2023-10-11 | 美商塔切爾實驗室公司 | Sensing system and method of identifying a person or object |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100283684A1 (en) * | 2009-05-05 | 2010-11-11 | Victor Rabinovich | Gps, gsm, and wireless lan antenna for vehicle applications |
| CN102957444A (en) * | 2011-08-18 | 2013-03-06 | 芯讯通无线科技（上海）有限公司 | 4G (fourth-generation) wireless communication device, vehicular mobile terminal and wireless communication method |
| CN202978919U (en) * | 2012-12-07 | 2013-06-05 | 深圳市航盛电子股份有限公司 | TD-SCDMA based vehicle-mounted system |
| CN203039089U (en) * | 2012-12-07 | 2013-07-03 | 深圳市航盛电子股份有限公司 | Vehicle CDMA2000 terminal |
| CN103491343A (en) * | 2013-08-26 | 2014-01-01 | 辽源市信长城信息技术研发有限公司 | Intelligent vehicle-mounted terminal system |
| CN203813820U (en) * | 2014-05-04 | 2014-09-03 | 上海大众汽车有限公司 | Vehicle-mounted information service system |
-
2015
- 2015-09-01 CN CN201510553086.5A patent/CN105206922A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100283684A1 (en) * | 2009-05-05 | 2010-11-11 | Victor Rabinovich | Gps, gsm, and wireless lan antenna for vehicle applications |
| CN102957444A (en) * | 2011-08-18 | 2013-03-06 | 芯讯通无线科技（上海）有限公司 | 4G (fourth-generation) wireless communication device, vehicular mobile terminal and wireless communication method |
| CN202978919U (en) * | 2012-12-07 | 2013-06-05 | 深圳市航盛电子股份有限公司 | TD-SCDMA based vehicle-mounted system |
| CN203039089U (en) * | 2012-12-07 | 2013-07-03 | 深圳市航盛电子股份有限公司 | Vehicle CDMA2000 terminal |
| CN103491343A (en) * | 2013-08-26 | 2014-01-01 | 辽源市信长城信息技术研发有限公司 | Intelligent vehicle-mounted terminal system |
| CN203813820U (en) * | 2014-05-04 | 2014-09-03 | 上海大众汽车有限公司 | Vehicle-mounted information service system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI818078B (en) * | 2018-09-18 | 2023-10-11 | 美商塔切爾實驗室公司 | Sensing system and method of identifying a person or object |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151230 |
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