CN101598943A - A kind of remote diagnosis method for vehicle fault and vehicle-mounted intelligent end device thereof - Google Patents
A kind of remote diagnosis method for vehicle fault and vehicle-mounted intelligent end device thereof Download PDFInfo
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- CN101598943A CN101598943A CNA200910016748XA CN200910016748A CN101598943A CN 101598943 A CN101598943 A CN 101598943A CN A200910016748X A CNA200910016748X A CN A200910016748XA CN 200910016748 A CN200910016748 A CN 200910016748A CN 101598943 A CN101598943 A CN 101598943A
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Abstract
The present invention is a kind of remote diagnosis method for vehicle fault and vehicle-mounted intelligent end device thereof.When automobile breaks down in the open air, can call out control center by communication network, the expert system at center, connect vehicle-mounted vehicle diagnosis unit by communication network, the vehicle diagnosis unit passes to control center with relevant informations such as diagnostic trouble code, data stream, through expert system analysis, or, provide failure cause through the auto repair analysis expert of expert's seat of control center.Help the automobile driver to carry out the maintenance of automobile.But for simple fault on-site maintenance, big fault provides nearest maintenance factory.Also can be used for the regular diagnosis maintenance of automobile.System communication system in addition can be used as car phone and uses.
Description
(1), technical field
The present invention relates to the implementation method of automotive diagnostic system.Specifically, be a kind of remote diagnosis method for vehicle fault.And relate to and realize the employed vehicle-mounted intelligent end device of described remote diagnosis method for vehicle fault.
(2), background technology
Quick growth along with China's economic, automobile pollution increases in the annual speed with millions of of China, and the vehicle driver mostly was professional driver in the past, all possesses certain auto repair, maintenance knowledge, when automobile breaks down, certain troubleshooting capability is all arranged in the open air.Now private car is more and more, because the occupation that non-professional driver is engaged in is different, knowledge is relative lacks to the maintenance of automobile and maintenance, and is when automobile breaks down in the open air, often helpless.Which type of maintenance when automobile should carry out in addition, and the car owner also not necessarily understands very much.
(3), summary of the invention
Technical matters to be solved by this invention is, a kind of remote diagnosis method for vehicle fault and vehicle-mounted intelligent end device thereof are provided, first, the problem of real-time diagnosis on the spot when solving automobile and breaking down in the open air.The second, when automobile need maintain, remind human pilot to maintain in good time.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme.
A kind of remote diagnosis method for vehicle fault is characterized in that: control center is set, and control center comprises computer server, vehicle diagnosis expert, automobile information database; And in user's vehicle, vehicle intelligent terminal is installed;
Vehicle intelligent terminal is delivered to control center by public wireless communication network after obtaining the diagnostic trouble code and data stream of automobile;
Control center transmits diagnostic result on the vehicle intelligent terminal by public wireless communication network and shows.
Receive user's vehicle diagnosis request when control center, computer server remote activation vehicle intelligent terminal is with diagnostic trouble code, the traffic flow information of the automobile control center of reading back, by the vehicle diagnosis analysis expert, obtain diagnostic result, diagnostic result is transmitted on the vehicle intelligent terminal show.
Arrive the vehicle in diagnosis time limit for the user that regular diagnostic requirements is arranged, control center initiatively passes through computer server remote activation vehicle intelligent terminal, with information such as the diagnostic trouble code of automobile, the data stream control center of reading back, by the vehicle diagnosis analysis expert, obtain diagnostic result, diagnostic result is transmitted on the vehicle intelligent terminal show.
Described vehicle intelligent terminal comprises the On-Board Diagnostics (OBD) unit, On-Board Diagnostics (OBD) unit communication interface, and power-supply system, liquid crystal display drive circuit, communication unit, microprocessor unit resets/storage unit and information display panel;
Wherein, described On-Board Diagnostics (OBD) unit is an intelligent diagnostics unit, it connects the diagnose interface of automobile, pass through executive routine, read failure sign indicating number and data stream from the vehicle diagnosis interface, and communicate by letter with microprocessor unit, according to the requirement of microprocessor unit, with the diagnostic data read according to protocol transmission to microprocessor unit.
Described communication unit is the vehicle intelligent terminal communication interface, is responsible for communicating by letter between microprocessor unit and the control center; The instruction of control center is delivered to vehicle intelligent terminal, and the data information transfer of vehicle intelligent terminal is arrived control center, realize the real-time Communication for Power of vehicle intelligent terminal and control center.
Described On-Board Diagnostics (OBD) unit communication interface is delivered to the On-Board Diagnostics (OBD) unit with the instruction of microprocessor unit, and the data that the On-Board Diagnostics (OBD) unit measures is returned microprocessor unit handle.
Described microprocessor unit is responsible for the information of On-Board Diagnostics (OBD) unit is carried out analysis and arrangement, storage, and data transfer is arrived control center; And deliver to information display panel with the relevant information of control center and from the information that data analysis obtains.
Described information display panel is responsible for the information interaction with the user, when the user uses phone, carry out the demonstration of number, short message, and video-stream processor is to the analysis result of On-Board Diagnostics (OBD) cell data, and the vehicle diagnosis expert of control center is to the analysis result information of vehicle diagnosis data.
Described resetting/storage unit provides the monitoring of reset signal and system's operate as normal for microprocessor unit, can reset to processor automatically when microprocessor unit takes place to crash, and makes microprocessor unit operate as normal again; Reset/storage unit provides data operation necessary memory headroom, and carry out data necessary and preserve;
Described liquid crystal display drive circuit is a driving interface, changes the control signal of microprocessor unit into signal that information display panel can use.
A kind of vehicle-mounted intelligent end device of realizing the vehicle failure remote diagnosis, comprise microprocessor unit, On-Board Diagnostics (OBD) unit communication interface, reset/storage unit, the On-Board Diagnostics (OBD) unit, power-supply system, liquid crystal display drive circuit, communication unit and information display panel is characterized in that: microprocessor unit directly links to each other with the storage unit that resets; Microprocessor unit links to each other with the On-Board Diagnostics (OBD) unit by On-Board Diagnostics (OBD) unit communication interface; Microprocessor unit links to each other with information display panel by liquid crystal display drive circuit; Microprocessor unit also links to each other with communication unit.
Good effect of the present invention is: when automobile breaks down in the open air, allow the expert of control center and car owner link up by communication system, understand phenomenon of the failure, and detect the malfunction of vehicle in real time, for the car owner provides feasible maintenance program and suggestion, and search nearest maintenance producer by the map system at center and carry out field rescue.In addition, the expert system at center regularly detects the data such as data stream of vehicle, and with reference to the time of maintaining last time, in time provides the maintenance suggestion for the car owner.
This method is different from automobile is reached Auto repair shop, carries out the on-the-spot method that detects maintenance by service worker, and it is by the long-range method that vehicle failure is diagnosed of communication system by long-range expert or expert system.
(4), description of drawings
Fig. 1 vehicle failure tele-diagnostic device functional block diagram;
Fig. 2 is an ARM core board schematic diagram of the present invention ();
Fig. 3 is an ARM core board schematic diagram of the present invention (two);
Fig. 4 is the schematic diagram of communication unit of the present invention;
Fig. 5 is the schematic diagram of power-supply system of the present invention.
(5), embodiment
Further specify the present invention below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the performing step of remote diagnosis method for vehicle fault of the present invention is, control center 9 is set, and control center 9 comprises computer server, vehicle diagnosis expert, automobile information database; And vehicle intelligent terminal 11 is installed in user's vehicle.
Vehicle intelligent terminal 11 is delivered to control center 9 by public wireless communication network 10 after obtaining the diagnostic trouble code and data stream of automobile.
Say further, when user's vehicle diagnosis request is received by control center 9, perhaps arrive diagnostic period in limited time for user's vehicle that regular diagnostic requirements is arranged, computer server remote activation vehicle intelligent terminal 11, with diagnostic trouble code, the traffic flow information of the automobile control center 9 of reading back, by the vehicle diagnosis analysis expert, obtain diagnostic result, diagnostic result is transmitted demonstration on the vehicle intelligent terminal 11.
Wherein, vehicle intelligent terminal 11 comprises microprocessor unit 1, and On-Board Diagnostics (OBD) unit communication interface 2 resets/storage unit 3, On-Board Diagnostics (OBD) unit 4, power-supply system 5, liquid crystal display drive circuit 6, communication unit 7 and information display panel 8.As Fig. 1, microprocessor unit 1 directly links to each other with the storage unit 3 that resets.Microprocessor unit 1 links to each other with On-Board Diagnostics (OBD) unit 4 by On-Board Diagnostics (OBD) unit communication interface 2.Microprocessor unit 1 links to each other with information display panel 8 by liquid crystal display drive circuit 6.Microprocessor unit 1 also is connected with communication unit 7.Communication unit 7 links to each other with control center 9 by public wireless communication network 10.
Described On-Board Diagnostics (OBD) unit 4 is intelligent diagnostics unit, it connects the diagnose interface of automobile, pass through executive routine, read failure sign indicating number and data stream from the vehicle diagnosis interface, and communicate by letter with microprocessor unit 1, according to the requirement of microprocessor unit 1, the diagnostic data of reading is arrived microprocessor unit 1 according to protocol transmission.
Described communication unit 7 is vehicle intelligent terminal communication interfaces, is responsible for communicating by letter between microprocessor unit 1 and the control center 9; The instruction of control center 9 is delivered to vehicle intelligent terminal 11, and the data information transfer of vehicle intelligent terminal 11 is arrived control center 9, realize the real-time Communication for Power of vehicle intelligent terminal 11 and control center 9.As shown in Figure 4.
Described On-Board Diagnostics (OBD) unit communication interface 2 is delivered to On-Board Diagnostics (OBD) unit 4 with the instruction of microprocessor unit 1, and the data that On-Board Diagnostics (OBD) unit 4 measures is returned microprocessor unit 1 handle.
Described microprocessor unit 1 is responsible for the information of On-Board Diagnostics (OBD) unit 4 is carried out analysis and arrangement, storage, and data transfer is arrived control center 9; And deliver to information display panel 8 with the relevant information of control center 9 and from the information that data analysis obtains.As Fig. 2, shown in Figure 3.
Described information display panel 8 is responsible for the information interaction with the user, when the user uses phone, carry out the demonstration of number, short message, and video-stream processor is to the analysis result of On-Board Diagnostics (OBD) unit 4 data, and the vehicle diagnosis expert of control center 9 is to the analysis result information of vehicle diagnosis data.
Described resetting/storage unit 3 provides the monitoring of reset signal and system's operate as normal for microprocessor unit 1, can reset to processor automatically when microprocessor unit 1 takes place to crash, and makes microprocessor unit 1 operate as normal again; Reset/storage unit 3 provides data operation necessary memory headroom, and carry out data necessary and preserve;
Described liquid crystal display drive circuit 6 is driving interface, changes the control signal of microprocessor unit 1 into signal that information display panel 8 can use.
Described power-supply system 5 is 11 power supplies of whole vehicle intelligent terminal, and the various magnitudes of voltage that the direct current of automobile storage battery is changed into system and needs use for system.As shown in Figure 5.
Claims (5)
1, a kind of remote diagnosis method for vehicle fault is characterized in that: control center (9) is set, and control center (9) comprises computer server, vehicle diagnosis expert, automobile information database; And vehicle intelligent terminal (11) is installed in user's vehicle;
After vehicle intelligent terminal (11) obtains the diagnostic trouble code and data stream of automobile, be delivered to control center (9) by public wireless communication network (10);
Control center (9) transmits vehicle intelligent terminal (11) by public wireless communication network (10) with diagnostic result and goes up demonstration.
2, remote diagnosis method for vehicle fault according to claim 1, it is characterized in that: the vehicle diagnosis request of receiving the user when control center (9), computer server remote activation vehicle intelligent terminal (11), with diagnostic trouble code, the traffic flow information of the automobile control center (9) of reading back, by the vehicle diagnosis analysis expert, obtain diagnostic result, diagnostic result is transmitted vehicle intelligent terminal (11) go up demonstration.
3, remote diagnosis method for vehicle fault according to claim 1, it is characterized in that: the vehicle that arrives the diagnosis time limit for the user that regular diagnostic requirements is arranged, control center (9) initiatively passes through computer server remote activation vehicle intelligent terminal (11), with information such as the diagnostic trouble code of automobile, the data stream control center (9) of reading back, by the vehicle diagnosis analysis expert, obtain diagnostic result, diagnostic result is transmitted vehicle intelligent terminal (11) go up demonstration.
4, according to claim 1 or 2 or 3 described remote diagnosis method for vehicle fault, it is characterized in that: described vehicle intelligent terminal (11) comprises On-Board Diagnostics (OBD) unit (4), On-Board Diagnostics (OBD) unit communication interface (2), power-supply system (5), liquid crystal display drive circuit (6), communication unit (7), microprocessor unit (1), (3) and information display panel (8) reset/storage unit;
Wherein, described On-Board Diagnostics (OBD) unit (4) is an intelligent diagnostics unit, it connects the diagnose interface of automobile, pass through executive routine, read failure sign indicating number and data stream from the vehicle diagnosis interface, and communicate by letter with microprocessor unit (1), according to the requirement of microprocessor unit (1), with the diagnostic data read according to protocol transmission to microprocessor unit (1).
Described communication unit (7) is the vehicle intelligent terminal communication interface, is responsible for communicating by letter between microprocessor unit (1) and the control center (9); The instruction of control center (9) is delivered to vehicle intelligent terminal (11), and the data information transfer of vehicle intelligent terminal (11) is arrived control center (9), realize the real-time Communication for Power of vehicle intelligent terminal (11) and control center (9).
Described On-Board Diagnostics (OBD) unit communication interface (2) is delivered to On-Board Diagnostics (OBD) unit (4) with the instruction of microprocessor unit (1), and the data that On-Board Diagnostics (OBD) unit (4) measure is returned microprocessor unit (1) handle.
Described microprocessor unit (1) is responsible for the information of On-Board Diagnostics (OBD) unit (4) is carried out analysis and arrangement, storage, and data transfer is arrived control center (9); And deliver to information display panel (8) with the relevant information of control center (9) and from the information that data analysis obtains.
Described information display panel (8) is responsible for the information interaction with the user, when the user uses phone, carry out the demonstration of number, short message, and video-stream processor is to the analysis result of On-Board Diagnostics (OBD) unit (4) data, and the vehicle diagnosis expert of control center (9) is to the analysis result information of vehicle diagnosis data.
Described resetting/storage unit (3) is the monitoring that microprocessor unit (1) provides reset signal and system's operate as normal, can automatically processor be resetted when microprocessor unit (1) takes place to crash, and makes microprocessor unit (1) operate as normal again; Reset/storage unit (3) provide data operation necessary memory headroom, and carry out data necessary and preserve;
Described liquid crystal display drive circuit (6) is a driving interface, changes the control signal of microprocessor unit (1) into signal that information display panel (8) can use.
5, a kind of vehicle-mounted intelligent end device of realizing the vehicle failure remote diagnosis, comprise microprocessor unit (1), On-Board Diagnostics (OBD) unit communication interface (2), (3) reset/storage unit, On-Board Diagnostics (OBD) unit (4), power-supply system (5), liquid crystal display drive circuit (6), communication unit (7) and information display panel (8) is characterized in that: microprocessor unit (1) directly links to each other with the storage unit that resets (3); Microprocessor unit (1) links to each other with On-Board Diagnostics (OBD) unit (4) by On-Board Diagnostics (OBD) unit communication interface (2); Microprocessor unit (1) links to each other with information display panel (8) by liquid crystal display drive circuit (6); Microprocessor unit (1) also links to each other with communication unit (7).
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