CN203084721U - Multi-interface extension management system of vehicle monitoring terminal - Google Patents
Multi-interface extension management system of vehicle monitoring terminal Download PDFInfo
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- CN203084721U CN203084721U CN 201220664695 CN201220664695U CN203084721U CN 203084721 U CN203084721 U CN 203084721U CN 201220664695 CN201220664695 CN 201220664695 CN 201220664695 U CN201220664695 U CN 201220664695U CN 203084721 U CN203084721 U CN 203084721U
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Abstract
The utility model discloses a multi-interface extension management system of a vehicle monitoring terminal. The multi-interface extension management system comprises a communication unit, an external interface unit 1, an external interface unit 2, a main processor unit, an auxiliary processor unit and a switch management unit. When the main processor unit works, the auxiliary processor unit receives and processes data transmitted by the main processor unit and transmits the data to buses inside a vehicle and external devices, and receives and processes data transmitted by the buses and the external devices and transmits the data to the main processor unit. When the main processor unit hibernates, the auxiliary processor unit controls the switch management unit, and conducts necessary data conversion transmission with the communication unit and the interface units. According to the multi-interface extension management system of the vehicle monitoring terminal, the defect that a dedicated chip can only expand a single interface is overcome, and the auxiliary processor unit which is provided with multiple interfaces, and is expandable in UART, CAN, GPIO and ADC is added. The original dedicated chip can only be used for interface expansion, an auxiliary processor conducts operation and processing on data of the interfaces, operation load of a main processor is greatly reduced, and stable operation of the system is benefited. In addition, the auxiliary processor can also flexibly control the switch management unit, a power supply unit and the like.
Description
Technical field
The present invention relates to a kind of interface extending device, relate in particular to a kind of many interfaces expansion management system of vehicle monitor terminal.Relating to Patent classificating number G06 calculates; Calculate; Counting G06F electricity numerical data handles G06F13/00 information or interconnection or the transmission G06F13/38 information of other signals between storer, input-output apparatus or CPU (central processing unit) transmits, and for example, carries out on bus.
Background technology
Vehicle monitor terminal generally needs a lot of outsides and internal interface, but present processor does not generally possess so many interface.General in the past employing interface extended chip solves this problem, and the mode that uses is not very flexible, can't carry out corresponding computing and effectively management again, therefore can not address this problem fully.
Summary of the invention
The present invention is directed to the proposition of above problem, and many interfaces expansion management system of a kind of vehicle monitor terminal of development is characterized in that having:
The communication unit of communicating by letter with the external world;
The external interface unit 1 and the external interface unit 2 that are connected with interfaces for external devices with each bus interface of vehicle interior;
The handover management element that is connected with communication unit;
As the main processor unit of system handles core, main processor unit is connected with described communication unit by described handover management element; Described main processor unit is connected with described external interface unit 1; Main processor unit is carried out data communication in system;
Also have the auxiliary processor unit that is connected with described main processor unit, handover management element and external interface unit 2:
When main processor unit is in running order, the auxiliary processor unit disconnects with described communication unit and being connected, be connected with primary processor by UART, send to external interface unit 2 and/or main processor unit by set communication protocol after reception and processing the data by main processor unit and/or external interface unit 2 transmission;
When main processor unit was in dormant state, the described handover management element of auxiliary processor unit controls was set up the connection between auxiliary processor unit and the communication unit; The auxiliary processor unit is transferred to external interface unit 2 and communication unit after receiving and handle the data and external status variation of communication unit and external interface unit 2 transmission; The auxiliary processor unit communicates with external interface unit 2 simultaneously, and carries out corresponding data processing.
Described communication unit comprises at least: receive the GPS module of GPS locating information and carry out the 3G module of radio communication with the external world.
During main processor unit work, main processor unit is connected with the GPS module by UART, is connected with the 3G module by USB.
Connect by UART between described main processor unit and the auxiliary processor unit.
Described auxiliary processor unit has UART1 and the UART2 that is connected with the 3G module with described GPS module at least.
Described bus interface and interfaces for external devices comprise at least: RS232, RS485, CAN, USB, ETHERNET, DEBUG, ALARMIN, ALARMOUT and ADC interface;
Wherein, external interface unit 1 has: RS485, ETHERNET, DEBUG and USB interface, external interface unit 2 has: RS232, CAN, ALARMIN, ALARMOUT and ADC interface.
Owing to adopt above-mentioned technical scheme, many interfaces expansion management system of the vehicle monitor terminal that the utility model proposed, solve special chip and can only expand the drawback of single face, added one and had abundant interface, UART, CAN, the prolongable auxiliary processor of GPIO unit.Original special chip can only be used for the interface expansion, and the data of auxiliary processor docking port are carried out calculation process, have alleviated the computing load of primary processor greatly, help the stable operation of system.Simultaneously, auxiliary processor can also be controlled handover management element, power supply unit etc. flexibly.
Description of drawings
Technical scheme for clearer explanation embodiments of the invention or prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is modular structure figure of the present utility model
Embodiment
For the purpose, technical scheme and the advantage that make embodiments of the invention is clearer,, the technical scheme in the embodiment of the invention is known complete description below in conjunction with the accompanying drawing in the embodiment of the invention:
As shown in Figure 1: a kind of many interfaces expansion management system of vehicle monitor terminal mainly comprises: communicate the communication unit of exchanges data, external interface unit 1 and the external interface unit 2 that is connected with each bus interface of vehicle interior and vehicle-mounted external apparatus interface with external unit.
Communication unit mainly comprises: receive the GPS locating information the GPS module, with extraneous 3G module and other relevant module of carrying out radio communication, also can be according to actual operating position increase SIM card module etc.
In order to handle vehicle interior and outside various data, be provided with a main processor unit, this main processor unit is connected with GPS module, 3G module and described external interface unit 1 in the described communication unit respectively, carry out intrasystem data processing, also be responsible for data-switching and transmission between above-mentioned each module simultaneously.
The internal interface type of considering single main processor unit is comparatively single, and workload is bigger, thus preferred, in the utility model, set up an auxiliary processor unit, similar with main processor unit, this auxiliary processor unit also is connected with described communication unit.The auxiliary processor unit is connected with each bus interface of external interface unit 2 and vehicle interior and external device interface that described external interface unit 1 is in coordination by one.
In order better to coordinate the co-ordination of main processor unit and auxiliary processor unit, preferably, the utility model is provided with a handover management element, and main processor unit all is connected with described communication unit by this handover management element with the auxiliary processor unit.
When main processor unit is worked, be connected with the GPS module by UART respectively, be connected with the 3G module by USB.
At this moment, the auxiliary processor unit disconnects with communication unit and is connected (no datat transmission), be connected with primary processor by UART, the partial data that receives the main processor unit transmission is handled, send each bus of vehicle interior and external equipment to by the external interface unit 2 that is connected with self, simultaneously, after receiving the data that external interface unit 2 transmits and handling, send main processor unit to, the auxiliary processor unit class is like the bridge of interface extended chip at this moment.
Further, when the main processor unit dormancy, promptly most of function of total system also is in dormant state, only needs to keep basic function.So it is preferred, this moment, auxiliary processor unit controls handover management element was set up the connection between auxiliary processor unit and the communication unit, the auxiliary processor unit receives between each bus of vehicle interior, external equipment and the communication unit data necessary and handles, and sends result to units corresponding.Simultaneously, can also wake primary processor when being necessary up.
Preferably, described main processor unit is connected by UART with the auxiliary processor unit.
Described external interface comprises: RS232, RS485, CAN, USB, ETHERNET, DEBUG, ALARMIN, ALARMOUT and ADC interface.
Wherein, external interface unit 1 comprises: RS485, ETHERNET, DEBUG and USB interface, external interface unit 2 comprises: RS232, CAN, ALARMIN, ALARMOUT and ADC interface.
The above; only be the preferable embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (6)
1. many interfaces expansion management system of a vehicle monitor terminal is characterized in that having:
The communication unit of communicating by letter with the external world;
The external interface unit 1 and the external interface unit 2 that are connected with interfaces for external devices with each bus interface of vehicle interior;
The handover management element that is connected with communication unit;
As the main processor unit of system handles core, main processor unit is connected with described communication unit by described handover management element; Described main processor unit is connected with described external interface unit 1; Main processor unit is carried out data communication in system;
Also have the auxiliary processor unit that is connected with described main processor unit, handover management element and external interface unit 2:
When main processor unit is in running order, the auxiliary processor unit disconnects with described communication unit and being connected, be connected with primary processor by UART, send to external interface unit 2 and/or main processor unit by set communication protocol after reception and processing the data by main processor unit and/or external interface unit 2 transmission;
When main processor unit was in dormant state, the described handover management element of auxiliary processor unit controls was set up the connection between auxiliary processor unit and the communication unit; The auxiliary processor unit is transferred to external interface unit 2 and communication unit after receiving and handle the data and external status variation of communication unit and external interface unit 2 transmission; The auxiliary processor unit communicates with external interface unit 2 simultaneously, and carries out corresponding data processing.
2. many interfaces of a kind of vehicle monitor terminal according to claim 1 expansion management system, its feature also is: described communication unit comprises at least: receive the GPS module of GPS locating information and carry out the 3G module of radio communication with the external world.
3. many interfaces of a kind of vehicle monitor terminal according to claim 2 expansion management system, its feature also is:
During main processor unit work, main processor unit is connected with the GPS module by UART, is connected with the 3G module by USB.
4. many interfaces of a kind of vehicle monitor terminal according to claim 1 expansion management system, its feature also is: connect by UART between described main processor unit and the auxiliary processor unit.
5. many interfaces of a kind of vehicle monitor terminal according to claim 3 expansion management system, its feature also is: described auxiliary processor unit has UART1 and the UART2 that is connected with the 3G module with described GPS module at least.
6. many interfaces of a kind of vehicle monitor terminal according to claim 1 expansion management system, its feature also is: described bus interface and interfaces for external devices comprise at least: RS232, RS485, CAN, USB, ETHERNET, DEBUG, ALARMIN, ALARMOUT and ADC interface;
Wherein, external interface unit 1 has: RS485, ETHERNET, DEBUG and USB interface, external interface unit 2 has: RS232, CAN, ALARMIN, ALARMOUT and ADC interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664695 CN203084721U (en) | 2012-12-05 | 2012-12-05 | Multi-interface extension management system of vehicle monitoring terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664695 CN203084721U (en) | 2012-12-05 | 2012-12-05 | Multi-interface extension management system of vehicle monitoring terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203084721U true CN203084721U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220664695 Expired - Fee Related CN203084721U (en) | 2012-12-05 | 2012-12-05 | Multi-interface extension management system of vehicle monitoring terminal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105045746A (en) * | 2015-09-09 | 2015-11-11 | 四川九洲电器集团有限责任公司 | Interface expanding device |
| CN109901447A (en) * | 2017-12-08 | 2019-06-18 | 郑州宇通客车股份有限公司 | A kind of CAN bus expanding unit |
| CN112152700A (en) * | 2020-11-25 | 2020-12-29 | 迪泰（浙江）通信技术有限公司 | Double-antenna system and selection method thereof |
-
2012
- 2012-12-05 CN CN 201220664695 patent/CN203084721U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105045746A (en) * | 2015-09-09 | 2015-11-11 | 四川九洲电器集团有限责任公司 | Interface expanding device |
| CN109901447A (en) * | 2017-12-08 | 2019-06-18 | 郑州宇通客车股份有限公司 | A kind of CAN bus expanding unit |
| CN109901447B (en) * | 2017-12-08 | 2020-12-08 | 郑州宇通客车股份有限公司 | CAN bus extension device |
| CN112152700A (en) * | 2020-11-25 | 2020-12-29 | 迪泰（浙江）通信技术有限公司 | Double-antenna system and selection method thereof |
| CN112152700B (en) * | 2020-11-25 | 2021-02-23 | 迪泰（浙江）通信技术有限公司 | Double-antenna system and selection method thereof |
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| 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: 20130724 Termination date: 20151205 |
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| EXPY | Termination of patent right or utility model |