CN203311209U

CN203311209U - Double-processor vehicle-mounted terminal

Info

Publication number: CN203311209U
Application number: CN201320377899XU
Authority: CN
Inventors: 陈晓琦
Original assignee: Chengdu Coneton Science and Technology Co Ltd
Current assignee: Chengdu Coneton Science and Technology Co Ltd
Priority date: 2013-06-28
Filing date: 2013-06-28
Publication date: 2013-11-27
Anticipated expiration: 2023-06-28

Abstract

The utility model discloses a double-processor vehicle-mounted terminal. The vehicle-mounted terminal comprises a main processor (1), a GPS unit (2), a radio communication unit (3), a human-computer interaction unit (4), an input and output interface (5), a burglar alarm (7) and a power supplying unit (8), wherein the GPS unit (2), the radio communication unit (3), the human-computer interaction unit (4), the input and output interface (5) and the burglar alarm (7)are connected to the main processor (1) and the power supplying unit (8); the power supplying unit (8) is further connected with the main processor (1). The vehicle-mounted terminal further comprises a slave processor (6), wherein the slave processor (6) is connected with the main processor (1) and the power supplying unit (8). The vehicle-mounted terminal is added with a slave processor for managing a system power supply and cutting off the power and restarting the system when the system abnormity is detected or when the system is idle at regular intervals, so that system stability is guaranteed; and the vehicle-mounted terminal has the advantages of being simple in structure, convenient to use and the like.

Description

The dual processor car-mounted terminal

Technical field

The utility model relates to the vehicle-mounted data communications field, relates in particular to a kind of dual processor car-mounted terminal.

Background technology

Along with the development of automobile industry, existing increasing vehicle has been installed car-mounted terminal.Existing car-mounted terminal is the front-end equipment of GPS automobile navigation and monitoring management system, and the functions such as integrated positioning, communication are arranged on monitored vehicle vehicle is navigated or monitoring management.

GPS unit, communication unit, man-machine interaction unit, talking handle and various IO interface etc. that current vehicle-mounted terminal equipment generally comprises processor and is connected respectively with processor, wherein: the GPS unit can provide the information such as vehicle location, speed, direction; Communication unit is for externally carrying out data communication, and man-machine interaction unit carries out data interaction for user and car-mounted terminal; Talking handle, used for user's communication; IO interface, be used to connecting external unit.

Existing car-mounted terminal need to be opened manually or close, when system does not respond, also need manually to restart or Long-distance Control is restarted, in case the user do not find, car-mounted terminal may be in off position always.There is certain deficiency in the stability of system.

The utility model content

The technical problems to be solved in the utility model just is: for the problems referred to above of prior art existence, the utility model provides a kind of dual processor car-mounted terminal simple in structure, easy to use, this car-mounted terminal has been set up one from the processor management system power supply, and when system exception being detected or regular power-off restarting when system is idle, guarantee the stability of system.

For achieving the above object, dual processor car-mounted terminal of the present utility model comprises primary processor, GPS unit, wireless communication unit, man-machine interaction unit, IO interface, alarm and power supply unit, above-mentioned GPS unit, wireless communication unit, man-machine interaction unit, IO interface and alarm all are connected on primary processor and power supply unit, above-mentioned power supply unit also is connected with primary processor, this dual processor car-mounted terminal also comprises from processor, with power supply unit, all is connected with primary processor from processor.In this programme, the effect of three aspects is arranged from processor: the one, serve as hardware watchdog, in the time of in the duration of a setting, can not holding left-hand seat with primary processor, restart system; The 2nd, management whole system power supply, should can cut off or connect the power supply of system other parts from processor; The 3rd, during the system long-play, to system cut-off, restart detecting under the system idle condition regularly; Stability from above three aspect keeping system long-time running.In prior art, generally from the aspect of performance that improves each module, consider how to improve the stability of system, such as, while needing to improve communication stability, improve the performance of wireless communication unit, and not can take into account from cost, habitual thinking aspect, separately do not establish a processor and be exclusively used in that system stability is safeguarded and improve, so this programme overcomes certain technology prejudice, had outstanding characteristics.

As further improvement of the utility model, above-mentioned wireless communication unit comprises gsm wireless module and be connected to the GSM antenna on the gsm wireless module, and above-mentioned IO interface comprises RS232 serial ports, RS485 interface, USB interface, can be connected with external unit.

Further, above-mentioned GPS unit comprises GPS module and gps antenna.

Further, above-mentioned man-machine interaction unit comprises touch-screen, audio playing unit, video playback unit, and navigation information, automobile essential information etc. all can be shown to the user from this man-machine interaction unit.

Preferably, the said GSM wireless module is the gsm module of TC35i model of SIEMENS company or the gsm module of the MG323 of Huawei model; It is the GPS module of Skylab SKM53 that above-mentioned GPS unit adopts model; Above-mentioned primary processor adopts the single-chip microcomputer of MSP430F149 model, above-mentioned single-chip microcomputer from processor adopting AT89S52 model.

With respect to prior art, the utlity model has following advantage and beneficial effect:

1, the utility model is set up from processor on car-mounted terminal, from processor management whole system power supply, and when system exception being detected or regular power-off restarting when system is idle, guarantees the stability of system.

2, the utility model is simple and compact for structure, easy to use.

The accompanying drawing explanation

Fig. 1 is structured flowchart of the present utility model.

Marginal data: 1, primary processor; 2, GPS unit; 3, wireless communication unit; 31, gsm wireless module; 32, GSM antenna; 4, man-machine interaction unit; 5, IO interface; 6, from processor; 7, alarm; 8, power supply unit.

Embodiment

Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.

As shown in Figure 1, the dual processor car-mounted terminal of the present embodiment, comprise primary processor 1, GPS unit 2, wireless communication unit 3, man-machine interaction unit 4, IO interface 5, from processor 6, alarm 7 and power supply unit 8, above-mentioned GPS unit 2, wireless communication unit 3, man-machine interaction unit 4, IO interface 5, all be connected on primary processor 1 and power supply unit 8 from processor 6 and alarm 7, above-mentioned power supply unit 8 also is connected with primary processor 1.

Above-mentioned IO interface 5 comprises RS232 serial ports, RS485 interface, USB interface; Above-mentioned wireless communication unit 3 comprises gsm wireless module 31 and is connected to the GSM antenna 32 on gsm wireless module 31; Wherein, the gsm module of the TC35i model of gsm wireless module 31 employing SIEMENS companies or the gsm module of the MG323 of Huawei model, TC35i is the highly integrated gsm module of a double frequency 900/1800MHZ, is easy to integrated.In practical application, wireless communication unit 3 also can adopt module or the chip of other models, also is not limited to adopt gsm module, can select the 3G wireless communication module adapted, GPRS wireless communication module etc. according to network.

Above-mentioned GPS unit 2 comprises GPS module and gps antenna, it is the GPS module of Skylab SKM53 that this above-mentioned GPS unit 2 adopts model, Skylab SKM53 is a collection antenna, engine modules integrated GPS product, its low-power consumption, miniaturization, its high tracking sensitivity (165dBm), have enlarged the coverage rate of its location greatly.It is based on high performance characteristics MediaTek 3329 single-chip frameworks, and the 165dBm tracking sensitivity makes to locate coverage rate and expands urban canyons and dense leaf environment to, and the serial interface of 6PIN pin and USB interface design are easy to be embedded into car-mounted terminal.In practical application, also can select according to user's user demand and actual production demand the GPS unit of other models.

Above-mentioned man-machine interaction unit 4 comprises touch-screen, audio playing unit, video playback unit, and this man-machine interaction unit 4 can adopt existing touch panel device commonly used, such as but not limited to dull and stereotyped pc, in the present embodiment, repeats no more its concrete structure and connected mode.

Above-mentioned primary processor 1 adopts the single-chip microcomputer of MSP430F149 model, the above-mentioned single-chip microcomputer that adopts the AT89S52 model from processor 6.MSP430F149 is a kind of novel mixed signal primary processor, adopted up-to-date Low-power Technology (working current is 0.1-400 p A), it is incorporated into a large amount of peripheral modules in sheet, be particularly suitable for exploitation and design monolithic system, therefore select the primary processor of the single-chip microcomputer of this model as the present embodiment, in practical application, primary processor 1, from processor 6, also can adopt processor, FPGA, the CPLD etc. of other models.

In the present embodiment, from processor 6 from following three aspects, strengthen the stability of system by setting up: the one, serve as hardware watchdog, in the time of in the duration of a setting, can not holding left-hand seat with primary processor, restart system; The 2nd, management whole system power supply, should can cut off or connect the power supply of system other parts from processor; The 3rd, during the system long-play, to system cut-off, restart detecting under the system idle condition regularly; Stability from above three aspect keeping system long-time running.

Be only below preferred implementation of the present utility model, protection domain of the present utility model also not only is confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, the some improvements and modifications not breaking away under the utility model principle prerequisite, should be considered as protection domain of the present utility model.

Claims

1. dual processor car-mounted terminal, comprise primary processor (1), GPS unit (2), wireless communication unit (3), man-machine interaction unit (4), IO interface (5), alarm (7) and power supply unit (8), described GPS unit (2), wireless communication unit (3), man-machine interaction unit (4), IO interface (5) and alarm (7) all are connected on primary processor (1) and power supply unit (8), described power supply unit (8) also is connected with primary processor (1), it is characterized in that, also comprise from processor (6), describedly from processor (6), all be connected with power supply unit (8) with primary processor (1).

2. dual processor car-mounted terminal according to claim 1, it is characterized in that, described wireless communication unit (3) comprises gsm wireless module (31) and is connected to the GSM antenna (32) on gsm wireless module (31), and described IO interface (5) comprises RS232 serial ports, RS485 interface, USB interface.

3. dual processor car-mounted terminal according to claim 1, is characterized in that, described GPS unit (2) comprises GPS module and gps antenna.

4. dual processor car-mounted terminal according to claim 1, is characterized in that, described man-machine interaction unit (4) comprises touch-screen, audio playing unit, video playback unit.

5. according to the arbitrary described dual processor car-mounted terminal of claim 2 to 4, it is characterized in that, described gsm wireless module (31) is the gsm module of TC35i model of SIEMENS company or the gsm module of the MG323 of Huawei model; It is the GPS module of Skylab SKM53 that described GPS unit (2) adopts model; Described primary processor (1) adopts the single-chip microcomputer of MSP430F149 model, the described single-chip microcomputer that adopts the AT89S52 model from processor (6).