CN201869320U - Vehicular DTU (data transfer unit) terminal based on 3G (third generation) network - Google Patents
Vehicular DTU (data transfer unit) terminal based on 3G (third generation) network Download PDFInfo
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- CN201869320U CN201869320U CN2010205922455U CN201020592245U CN201869320U CN 201869320 U CN201869320 U CN 201869320U CN 2010205922455 U CN2010205922455 U CN 2010205922455U CN 201020592245 U CN201020592245 U CN 201020592245U CN 201869320 U CN201869320 U CN 201869320U
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Abstract
The utility model relates to a vehicular DTU (data transfer unit) terminal based on a 3G (the third generation) network, which comprises a main controller. The main controller is connected with a 3G module, a power system is connected onto the main controller and connected with a power supply module, the 3G module is connected with a control interface circuit, and the control interface circuit is further connected with the main controller. The vehicular DTU terminal based on a 3G network realizes connection with the 3G network so as to provide high-speed uplink/downlink (5.76Mbps/7.2Mbps) data transmission rate, can realize services such as real-time video, high-speed multimedia and mobile internet access and the like of a vehicular system, and can also realize basic voice call and short messaging services.
Description
Technical field
The utility model relates to technical field of automotive electronics, specifically is based on the vehicle-mounted DTU terminal of 3G (3G (Third Generation) Moblie technology) network.
Background technology
Present vehicle-mounted DTU (data-transfer unit, data transmission device) is based on the end product of GPRS (GeneralPacket Radio Service, general packet radio service technology) data communication network.The GPRS technology is at GSM (Global System for Mobile Communications, global system for mobile communications) the high-speed packet data transmission technology that realizes on the network foundation, the message transmission rate of GPRS provides up/descending (42.8kbps/85.6kbps), it is to realize business such as real-time video, high-speed multimedia and mobile Internet visit.
The utility model content
Main purpose of the present utility model provides a kind of vehicle-mounted DTU terminal based on 3G network, can realize business such as onboard system real-time video, high-speed multimedia and mobile Internet (the Internet) visit.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of vehicle-mounted DTU terminal based on 3G network, it comprises: master controller, described master controller connects the 3G module, be connected with power-supply system on the described master controller, described power-supply system is connected with supply module, described 3G module connects control interface circuit, and described control interface circuit also connects described master controller.
Preferably, described 3G module is provided with SIM card, and described 3G module also is connected with antenna assembly.
Preferably, described 3G module is connected by the SMB connector with described antenna assembly.
Preferably, described control interface circuit is the interface circuit of 16 pins.
Preferably, described supply module is vehicle power module or independent current source module, and described power-supply system is an anti-interference power supply system.
Implement the technical solution of the utility model, has following beneficial effect: the vehicle-mounted DTU terminal that the utility model provides based on 3G network, by realizing the connection of 3G network, the message transmission rate of up/descending (5.76Mbps/7.2Mbps) at a high speed is provided, can realize business such as onboard system real-time video, high-speed multimedia and mobile Internet visit, simultaneously, also can realize basic voice call and short message service.
Description of drawings
The structural representation that Fig. 1 provides for the utility model embodiment based on the vehicle-mounted DTU terminal of 3G network.
The realization of the utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model embodiment provides a kind of vehicle-mounted DTU terminal 100 based on 3G network, as shown in Figure 1, should comprise based on the vehicle-mounted DTU terminal 100 of 3G network: master controller, described master controller connects the 3G module, be connected with power-supply system on the described master controller, described power-supply system is connected with supply module, and described 3G module connects control interface circuit, and described control interface circuit also connects described master controller.Described power module is described master controller and 3G module for power supply by power-supply system, described master controller is used to control reception and the emission that described 3G module realizes the 3G data, and control interface circuit realizes that the Data Control of master controller, 3G module etc. and onboard system is with mutual.In the present embodiment, concrete, the startup and the monitoring operating state of main controller monitoring 3G module, finish voice call and SMS alternately by UART interface and onboard system simultaneously, utilize virtual 3 the basic high speed communication links of USB interface, realize online dialing, high band wide data communication and debugging.In addition, also the communication applications layer software development for onboard system provides middleware API (Application Programming Interface, application programming interface), shortens the software development cycle of the communication traffic of onboard system, significantly reduce cost of software development.
In the present embodiment, preferably, described 3G module is provided with SIM (Subscriber IdentityModule, Subscriber Identity Module) card, in the present embodiment, this SIM card adopts embedded USIM (the Universal SubscriberIdentity Module of CHINAUNICOM, whole world Subscriber Identity Module) card, improve anti-vibration resistance, and described 3G module also is connected with antenna assembly 101, better to carry out the transmission of data.The antenna of antenna assembly 101 and wire harness connector meet the vehicle environment requirement of experiment.In the present embodiment, preferred, the 3G module adopts the 3G module of vehicle-mounted type, to improve anti-vibration resistance and high-low temperature resistant characteristic.
In the present embodiment, preferred, described 3G module is connected by SMB (radio-frequency (RF) coaxial) connector with described antenna assembly 101, to realize better signal emission and to receive.
In the present embodiment, preferred, described control interface circuit is the interface circuit of 16 pins.UART in the onboard system on this control interface circuit and the vehicle (Universal AsynchronousReceiver/Transmitter, universal asynchronous reception/dispensing device), interfaces such as Audio (audio frequency), USB (UniversalSerial BUS, USB), power supply connect.The upgrading and the expanded function of this onboard system after also can being used for.
In the present embodiment, preferred, described supply module is power module independently, thereby with the call noise problem of the interference generation that reduces the vehicle power module, described power-supply system is an anti-interference power supply system.For master controller and 3G module provide glitch-free power supply.In other embodiment, also can adopt directly power supply from onboard system.
The vehicle-mounted DTU terminal that the foregoing description provides based on 3G network, by realizing the connection of 3G network, the message transmission rate of up/descending (5.76Mbps/7.2Mbps) at a high speed is provided, can realize business such as onboard system real-time video, high-speed multimedia and mobile Internet visit, simultaneously, also can realize basic voice call and short message service.
Below only be preferred embodiment of the present utility model,, all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model not in order to restriction the utility model.
Claims (5)
1. vehicle-mounted DTU terminal based on 3G network, it is characterized in that, comprise: master controller, described master controller connects the 3G module, be connected with power-supply system on the described master controller, described power-supply system is connected with supply module, and described 3G module connects control interface circuit, and described control interface circuit also connects described master controller.
2. according to claim 1 based on the vehicle-mounted DTU terminal of 3G network, it is characterized in that described 3G module is provided with SIM card, and described 3G module also is connected with antenna assembly.
As described in the claim 2 based on the vehicle-mounted DTU terminal of 3G network, it is characterized in that described 3G module is connected by the SMB connector with described antenna assembly.
As described in the claim 3 based on the vehicle-mounted DTU terminal of 3G network, it is characterized in that described control interface circuit is the interface circuit of 16 pins.
5. according to claim 1 based on the vehicle-mounted DTU terminal of 3G network, it is characterized in that described supply module is vehicle power module or independent current source module, described power-supply system is an anti-interference power supply system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205922455U CN201869320U (en) | 2010-11-04 | 2010-11-04 | Vehicular DTU (data transfer unit) terminal based on 3G (third generation) network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205922455U CN201869320U (en) | 2010-11-04 | 2010-11-04 | Vehicular DTU (data transfer unit) terminal based on 3G (third generation) network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201869320U true CN201869320U (en) | 2011-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205922455U Expired - Fee Related CN201869320U (en) | 2010-11-04 | 2010-11-04 | Vehicular DTU (data transfer unit) terminal based on 3G (third generation) network |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103068067A (en) * | 2012-12-27 | 2013-04-24 | 惠州市德赛西威汽车电子有限公司 | Vehicle-mounted 3rd generation telecommunication (3G) method for wideband code division multiple access (WCDMA) |
| CN106412724A (en) * | 2016-09-06 | 2017-02-15 | 广州市婵昕生物科技有限责任公司 | DTU wireless terminal device for communication network engineering |
-
2010
- 2010-11-04 CN CN2010205922455U patent/CN201869320U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103068067A (en) * | 2012-12-27 | 2013-04-24 | 惠州市德赛西威汽车电子有限公司 | Vehicle-mounted 3rd generation telecommunication (3G) method for wideband code division multiple access (WCDMA) |
| CN106412724A (en) * | 2016-09-06 | 2017-02-15 | 广州市婵昕生物科技有限责任公司 | DTU wireless terminal device for communication network engineering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20151104 |
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| EXPY | Termination of patent right or utility model |