CN104683170A - Vehicle network fault diagnosis system - Google Patents
Vehicle network fault diagnosis system Download PDFInfo
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- CN104683170A CN104683170A CN201310634922.3A CN201310634922A CN104683170A CN 104683170 A CN104683170 A CN 104683170A CN 201310634922 A CN201310634922 A CN 201310634922A CN 104683170 A CN104683170 A CN 104683170A
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Abstract
The invention provides a vehicle network fault diagnosis system. The vehicle network fault diagnosis system comprises a network interface unit accessing to a vehicle network, a network diagnosis treatment unit for diagnosing a vehicle network state and a state display unit for displaying a diagnosis result; the network interface unit, the network diagnosis treatment unit and the state display unit are sequentially connected with one another. The vehicle network fault diagnosis system is connected to the vehicle network by virtue of the network interface unit, the vehicle network state is diagnosed by virtue of the diagnosis treatment unit, and the diagnosis result is displayed to the repairing personnel by virtue of the state display unit, so that the connection fault problems of the network cables such as error in cable pins, infirmness in connection, damage of a shielding layer and the like can be rapidly detected, and the position of a cable fault can be rapidly located.
Description
Technical field
The present invention relates to the vehicle network communication technology, particularly relate to a kind of vehicle network fault diagnosis system.
Background technology
At present, light rail or subway have been the requisite vehicles during people live, but also carry increasing function.Modern science and technology world-wide web, wireless network, personal communication electronic installation and amusement equipment etc. has been incorporated into light rail and subway carriage is inner, for passenger provides unprecedented facility.
But network systematic difference is more prevalent along with on light rail or railcar, the stability of vehicle network system becomes the problem of user's care gradually.Wherein, network cable connects fault, such as cable stitch mistake, to connect insecure or screen impaired etc., is the major reason causing vehicle network system instability.At present, also do not have a kind of fault detection system can detect these problems in vehicle network, and network cable connect intricate and is all arranged in interior to depend merely on manpower be difficult to the root that fault occurs be detected.
Summary of the invention
The invention provides a kind of vehicle network fault diagnosis system, in order to solve during existing vehicle network detects exist be difficult to detect network cable connection fault by manpower and the problem of root that the fault that is difficult to be located by connecting occurs.
The invention provides a kind of vehicle network fault diagnosis system, it is characterized in that, comprising: the status display unit of the network interface unit of access vehicle network, the network diagnosis processing unit diagnosing vehicle network state and display diagnostic result; Wherein, network interface unit, network diagnosis processing unit and status display unit connect successively.
The present invention is connected to vehicle network by network interface unit, by network diagnosis processing unit diagnosis vehicle network state, and diagnostic result is shown to maintenance personal by status display unit, fast detecting can go out network cable connection failure problems, such as there is cable stitch mistake, to connect insecure or screen impaired etc., and can the position of quick position generation cable fault.
Accompanying drawing explanation
Fig. 1 is the structural representation of vehicle network fault diagnosis system embodiment one provided by the invention;
Fig. 2 is the structural representation of vehicle network fault diagnosis system embodiment two provided by the invention;
Fig. 3 is the structural representation of vehicle network fault diagnosis system embodiment three provided by the invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, for the structural representation of vehicle network fault diagnosis system embodiment one provided by the invention, comprising: the status display unit 13 of the network interface unit 11 of access vehicle network, the network diagnosis processing unit 12 diagnosing vehicle network state and display diagnostic result; Wherein, network interface unit 11, network diagnosis processing unit 12 and status display unit 13 connect successively.
Specifically, the vehicle network fault diagnosis system described in the present embodiment may be used for diagnosing vehicle network connection status, such as, can be railcar network or light rail vehicle network.Wherein, network interface unit 11 can be used according to vehicle network to be diagnosed type of network interface set, it can be such as DB9 type network interface, be mainly used in vehicle network system to be diagnosed access vehicle network fault diagnosis system, so that whether vehicle network fault diagnosis system diagnosis vehicle network system exists network connectivity fai_lure.After vehicle network to be diagnosed successfully accesses vehicle network fault diagnosis system by network interface unit 11, network diagnosis processing unit 12 starts to start, be mainly used in carrying out network diagnosis to the vehicle network of access, comprise directly diagnosis and diagnosis indirectly, user can carry out choosing at random diagnostic mode on system interface.Wherein, directly diagnosis can carry out gating test to each passage of vehicle network cable, and whether there is the failure problems such as passage disconnection, short circuit, misconnection or adhesion to detect vehicle network cable, this diagnostic mode can directly be realized by control switch; Wherein, indirect diagnosis can by intercepting the network data of vehicle network, then corresponding procotol is selected to resolve the network data of the vehicle network listened to according to the network type of current network, judge whether vehicle network exists the failure problems such as breakpoint, short circuit, misconnection or adhesion according to the network data parsed, and directly can locate and occur location of fault, this diagnostic mode can be realized by network controller and logical circuit.After network diagnosis processing unit 12 has been diagnosed, diagnostic result is sent to status display unit 13, status display unit 13 is for showing diagnostic result, so that maintenance personal formulates corresponding solution according to the diagnostic result of display.
As shown in Figure 2, for the structural representation of vehicle network fault diagnosis system embodiment two provided by the invention, the difference of the present embodiment and embodiment one is, the present embodiment is except comprising the network interface unit 21 of access vehicle network, diagnose outside the network diagnosis processing unit 22 of vehicle network state and the status display unit 23 of display diagnostic result, also comprise select button 26, select display lamp 25, at least one gating button 24, the gating display lamp 27 corresponding with gating number of buttons and expert diagnostic system 28, wherein select button 26 is connected with network diagnosis processing unit 22, display lamp 25 is selected to be connected with network diagnosis processing unit 22, gating button 24 is connected with network interface unit 21, gating display lamp 27 is connected with network interface unit 21, and expert diagnostic system 28 is arranged on status display unit 23 or network diagnosis processing unit 22.
When network fault diagnosis system carries out vehicle network diagnosis, first the diagnostic mode adopted is selected by select button 26, such as, direct diagnostic mode can be set for acquiescence diagnostic mode, namely, when select button 26 is in starting state and the selection display lamp 25 of correspondence does not work, illustrate that current is direct diagnostic mode.When by select button 26, when corresponding selection display lamp 25 is glittering, represent to be now indirect diagnostic mode.When adopting direct diagnostic mode to detect, after network interface unit 21 with vehicle network successful connection, now directly can diagnose vehicle network, diagnostic procedure is as follows: press some gating buttons 24 be connected with network interface unit 21, wherein the number of gating button 26 is corresponding with the circuit number of the type of network interface or cable used, and each gating button is connected with a certain cable passage in vehicle network cable by network interface 21, when pressing a certain gating button, then this cable passage is in strobe state, namely electric power loop can be formed, if the cable of this cable passage connects normal, then glittering with the corresponding gating indicator light 27 of this cable passage, then illustrate that this cable passage is normal, otherwise there is short circuit in this cable passage, the failure problems such as open circuit, similar method is utilized to select other gating buttons to test the cable situation of other cable passages again, the failure problems that last comprehensive descision is concrete.Similarly, by select button 26, corresponding selection display lamp 25 is glittering, then start indirect diagnostic mode.When adopting indirect diagnostic mode to detect, after network interface unit 21 with vehicle network successful connection, then now just indirectly can diagnose vehicle network.Its diagnostic procedure is as follows: network interface unit 21 is communicated with vehicle network and forms logic level, network diagnosis processing unit 22 intercepts the network data of vehicle network, then corresponding procotol is selected according to the network type of current network, the network data of the vehicle network going out to listen to by network protocol converter and the network data attribute configuration document analysis that prestores, network diagnosis processing unit 22 compares analysis according to the network data of resolving and draws diagnostic result, diagnostic result is carried out specific coded treatment and obtains diagnosis coding result, and diagnosis coding result is sent to status display unit 23, status display unit 23 obtains corresponding fault message according to the diagnosis coding result search expert diagnostic system 28 be arranged on inside status display unit 23, wherein, expert diagnostic system 28 li of fault messages stored corresponding to diagnosis coding result, and the fault message searched out is shown, vehicle debugging maintenance personnel are made to find out whether vehicle network exists breakpoint intuitively, short circuit, the position that the fault such as misconnection or adhesion and fault occur.
Wherein, needs it should be noted that, also can expert diagnostic system in above-described embodiment be arranged in network diagnosis processing unit 22, network diagnosis processing unit 22 compares analysis according to the network data of resolving and draws diagnostic result, diagnostic result is carried out specific coded treatment and obtains diagnosis coding result, and according to diagnosis coding result search expert diagnostic system 28, the fault message searched out is sent to status display unit 23 show, vehicle debugging maintenance personnel are made to find out whether vehicle network exists breakpoint intuitively, short circuit, the position that the fault such as misconnection or adhesion and fault occur.
The present invention is connected to vehicle network by network interface unit, by network diagnosis processing unit diagnosis vehicle network state, and diagnostic result is shown to maintenance personal by status display unit, fast detecting can go out network cable connection failure problems, such as there is cable stitch mistake, to connect insecure or screen impaired etc., and the position of energy quick position generation cable fault, facilitate easy-to-use, and save a large amount of human and material resources.
As shown in Figure 3, for the structural representation of vehicle network fault diagnosis system embodiment three provided by the invention, the difference of the present embodiment and above-described embodiment is, the present embodiment is except comprising the network interface unit 31 of access vehicle network, the network diagnosis processing unit 32 of diagnosis vehicle network state, the status display unit 33 of display diagnostic result, gating display lamp 34, select display lamp 35, outside gating button 36 select button 37 and expert diagnostic system 40, also comprise: host computer 41, be connected to the host computer interface unit 38 between network diagnosis processing unit 32 and host computer 41 and power supply unit 39, wherein, power supply unit 39 and described network interface unit 31, network diagnosis processing unit 32, status display unit 33, host computer interface unit 38, gating display lamp 34, select display lamp 35, gating button 36 and select button 37 connect.
Wherein, host computer interface unit 38 can be USB interface or Ethernet interface, for connecting host computer 41, and for the diagnostic result of network diagnosis processing unit 32 is sent to host computer 41, after receiving diagnostic result to make host computer 41, provide corresponding solution according to diagnostic result.Wherein, host computer 41 is computer for controlling, can realize information sharing, here, the different solutions of different faults can be prestored on host computer 41, corresponding solution can be provided fast after it receives the diagnostic result of network diagnosis processing unit 32 transmission.Power supply unit 39 primary responsibility is that whole vehicle network fault diagnosis system is powered, and by arranging that power line external power supply realizes, also can be set to battery powdered device.
In addition, when indirectly diagnosing, network diagnosis processing unit 32 can obtain configuration file by host computer interface unit 31 from host computer 41, wherein have recorded network attribute data in configuration file, then the network data of the vehicle network listened to is resolved according to configuration file, and analysis is carried out to the network data be resolved to draw diagnostic result, and diagnostic result is carried out specific coded treatment obtain diagnosis coding result, diagnosis coding result is sent to status display unit 33 or is sent to host computer 41 by host computer interface unit 38 and show, status display unit 33 or host computer 41 obtain corresponding fault message according to diagnosis coding result search expert diagnostic system 40, wherein expert diagnostic system 40 can be arranged on status display unit 33 or host computer 41, or be arranged on status display unit 33 or host computer 41 simultaneously, and the fault message searched out is shown, vehicle debugging maintenance personnel are made to find out whether vehicle network exists breakpoint intuitively, short circuit, the position that the fault such as misconnection or adhesion and fault occur.
The present invention is connected to vehicle network by network interface unit, by network diagnosis processing unit diagnosis vehicle network state, and diagnostic result is shown to maintenance personal by status display unit, fast detecting can go out network cable connection failure problems, such as there is cable stitch mistake, to connect insecure or screen impaired etc., and the position of energy quick position generation cable fault, facilitate easy-to-use, and save a large amount of human and material resources.And be provided with host computer interface unit, diagnostic system and host computer can be made to carry out alternately, further enhancing the function of diagnostic system.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a vehicle network fault diagnosis system, is characterized in that, comprising: the status display unit of the network interface unit of access vehicle network, the network diagnosis processing unit diagnosing vehicle network state and display diagnostic result; Wherein, network interface unit, network diagnosis processing unit and status display unit connect successively.
2. system according to claim 1, is characterized in that, also comprises: select button, selection display lamp, at least one gating button and the gating display lamp corresponding with gating number of buttons;
Described select button is connected with described network diagnosis processing unit; Described selection display lamp is connected with described network diagnosis processing unit; Described gating button is connected with described network interface unit; Described gating display lamp is connected with described network interface unit.
3. system according to claim 1, is characterized in that, also comprises: host computer and host computer interface unit, and described host computer interface unit is connected between network diagnosis processing unit and described host computer.
4. system according to claim 3, is characterized in that, described host computer interface unit is USB interface or Ethernet interface.
5. system according to claim 3, is characterized in that, also comprises: expert diagnostic system, and described expert diagnostic system is arranged at least following a kind of position:
Described status display unit, described network diagnosis processing unit and described host computer.
6. the system according to any one of Claims 1 to 5, is characterized in that, also comprises: power supply unit, and described power supply unit is connected with described network interface unit, network diagnosis processing unit and status display unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310634922.3A CN104683170A (en) | 2013-11-28 | 2013-11-28 | Vehicle network fault diagnosis system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310634922.3A CN104683170A (en) | 2013-11-28 | 2013-11-28 | Vehicle network fault diagnosis system |
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| CN104683170A true CN104683170A (en) | 2015-06-03 |
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| CN201310634922.3A Pending CN104683170A (en) | 2013-11-28 | 2013-11-28 | Vehicle network fault diagnosis system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114095903A (en) * | 2021-11-11 | 2022-02-25 | 盐城市华悦汽车部件有限公司 | Construction method of automobile electrical appliance network |
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Address after: 116045 Liaoning province Dalian City Lushun Economic Development Zone No. 1 North Street, Hao Yang Applicant after: CRRC DALIAN ELECTRIC TRACTION R & D CENTER CO., LTD. Address before: 116045 Liaoning province Dalian City Lushun Economic Development Zone No. 1 North Street, Hao Yang Applicant before: Co., Ltd of Bei Che Dalian Electric Traction R & D Center |
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Application publication date: 20150603 |