CN202014271U - Vehicle-mounted network combined monitoring in-vehicle self-diagnosis system - Google Patents
Vehicle-mounted network combined monitoring in-vehicle self-diagnosis system Download PDFInfo
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- CN202014271U CN202014271U CN2011200335971U CN201120033597U CN202014271U CN 202014271 U CN202014271 U CN 202014271U CN 2011200335971 U CN2011200335971 U CN 2011200335971U CN 201120033597 U CN201120033597 U CN 201120033597U CN 202014271 U CN202014271 U CN 202014271U
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Abstract
The utility model provides a vehicle-mounted network combined monitoring vehicle-mounted self-diagnosis system, through the design of Media Oriented Systems networks (MOST Bus for short) and vehicle-mounted control platform (Head Unit), the Media Oriented Systems network is provided with multiple nodes, the devices are connected through the nodes to form the main backbone link of the Media Oriented Systems network, in addition, the vehicle-mounted control platform is provided with a Media Oriented Systems main timing generating Unit and a fault management module, the Media Oriented Systems main timing generating Unit is connected with the Media Oriented Systems network, and the fault management module is provided with a fault confirming Unit, a fault indication lamp control Unit, a scanning tool interface Unit and a fault memory management Unit, so that the performance signal and the loop of the device connected with the nodes of the Media Oriented Systems network can be self-scanned and diagnosed through the fault management module, so that the display can be displayed according to different states, and the driver can be warned about and maintained.
Description
Technical field
The utility model relevant for a kind of In-vehicle networking in conjunction with the monitoring car in the autodiagnosis system, especially refer to a kind of by media guidance grid (Media Oriented Systems Transport, be called for short MOST Bus) and the design of vehicle-mounted control platform (Head Unit), the fault management module that enable pass is crossed in the vehicle-mounted control platform is monitored the loop and the autodiagnosis Che Nei system of In-vehicle networking, and is applicable to passenger traffic, tourist coach, car etc. or various vehicle.
Background technology
Spare part in the early stage vehicle has when unusual, could find when usually needing to wait until into maintenance factory's maintenance, so often can see that the vehicle or the fault vehicle that cast anchor use the maintenance factory of advancing that pushes away to keep in repair in the roadside in early days.
Yet, under development of science and technology, start from being equiped with on each spare part in the vehicle device of detecting, to detect the unusual of spare part, and can send the sound or be shown on the instrument board, can remind the driver to notice that a certain spare part on the car has had unusually, need enter maintenance factory as early as possible and keep in repair or maintain.
But, its sound that is sent when spare part is unusual separately is mostly the same, or on instrument board, only show general position, so it is that spare part goes wrong that the driver usually can't judge over there, and the master worker of maintenance factory just finds real unusual spare part after also usually having torn a lot of spare parts open, could maintain and replace.
Therefore, this creator is because above-mentioned disappearance, phase can provide a kind of performance signals and loop with self-diagnosis of scans and monitoring bus equipment, show according to different conditions enabling, the In-vehicle networking of the function of just noting with the warning driver and keeping in repair combines autodiagnosis system in the monitoring car, but makes the assembling of user's easy operation, is to grind think of, design team's system with great concentration, so that the user to be provided convenience, desire to grind the utility model motivation of wound for this creator.
Summary of the invention
Main purpose of the present utility model, be to provide a kind of In-vehicle networking in conjunction with autodiagnosis system in the monitoring car, by a media guidance grid (Media Oriented Systems Transport, be called for short MOST Bus) and the design of a vehicle-mounted control platform (Head Unit), enable pass is crossed performance signals and the loop that fault management module is come the device that node connected of self-diagnosis of scans media guidance grid, show according to different conditions enabling, just note and keep in repair with the warning driver, and then increase the practicality and the convenience of integral body.
An of the present utility model purpose, be to provide a kind of In-vehicle networking in conjunction with autodiagnosis system in the monitoring car, carry out circuit continuity diagnosis, functional diagnosis and control unit diagnosis by the scanning tools boundary element in the fault management module, and the number of times that writes down and discern malfunction, fault type, fault mode and break down by the failed storage management unit, be connected with the malfunction indicator lamp control unit by the fault recognition unit again, coming show state by malfunction indicator lamp, and then increase whole practicality in different malfunctions.
In order to achieve the above object, the utility model provides a kind of In-vehicle networking in conjunction with autodiagnosis system in the monitoring car, it is characterized in that, includes:
One media guidance grid, and this media guidance grid is provided with multinode, comes jockey by node, to form the main backbone links of media guidance grid; And
One vehicle-mounted control platform, be provided with the master of media guidance system regularly generation unit and fault management module in this vehicle-mounted control platform, and the master of this media guidance system timing generation unit is connected with described media guidance grid, and be provided with the fault recognition unit in this fault management module, the malfunction indicator lamp control unit, scanning tools boundary element and failed storage management unit, after diagnosing by the scanning tools boundary element earlier, data after the diagnosis are delivered in the described failed storage management unit, be connected with affiliated malfunction indicator lamp control unit by described fault recognition unit again, different malfunctions can be come show state by described malfunction indicator lamp, enable pass is crossed performance signals and the loop that described fault management module is come the device that node connected of the described media guidance grid of self-diagnosis of scans.
During enforcement, this media guidance grid with fiber optic fibers, plastic as transmission medium.
During enforcement, this media guidance grid employing bus network arrangement, star-network arrangement, loop network arrangement, the arrangement of double-ring network, tree network arrangement, mesh network arrangement or the arrangement of mixing mesh network.
During enforcement, further be provided with communication unit and expansion unit in a central control module, the compatible unit of an I/O, the outer communication unit of at least one car, at least one car in this vehicle-mounted control platform, and this central control module is provided with a processor, this processor is connected with outer communication unit of car and expansion unit respectively, and be provided with multiplex's bus in this processor, communication unit is connected in compatible with described I/O respectively unit of this multiplex's bus and the described car, and the compatible unit of described I/O is connected with the described media guidance master of system timing generation unit.
During enforcement, this device is digitized video register, active near infrared ray night vision system, image-type deviation caution system, image-type the place ahead anti-collision warning system, image display system or image-type side anti-collision warning system.
During enforcement, this fault management module is carried out circuit continuity diagnosis, functional diagnosis and control unit diagnosis with the scanning tools boundary element, and the number of times that writes down and discern malfunction, fault type, fault mode and break down by the failed storage management unit, be connected with described malfunction indicator lamp control unit by described fault recognition unit again, coming show state by malfunction indicator lamp in different malfunctions.
During enforcement, be provided with fault diagnosis code in the failed storage management unit of this fault management module, and this fault diagnosis code contains the conversion regime of suspicious parameter numbering, fault mode sign, frequency and suspicious numbering, is used for malfunction and the fault type of determining that each device is taken place.
During enforcement, the outer communication unit of this car is tuner, global microwave access interoperability system, GPS (Global Position System) or global system for mobile communications.
During enforcement, communication unit is local interlinkage network-driven control interface or network-driven control interface, a control area in this car.
During enforcement, the node of this control area network further can be connected with arbitrary device, the media guidance grid can and be merged, to form the transmission of dual network framework in conjunction with the control area network.
Compared with prior art, In-vehicle networking of the present utility model includes in conjunction with autodiagnosis system in the monitoring car: a media guidance grid (Media Oriented Systems Transport is called for short MOST Bus) and a vehicle-mounted control platform (Head Unit); This media guidance grid is provided with multinode, come jockey by node, to form the main backbone links of media guidance grid, be provided with the master of media guidance system regularly generation unit and fault management module in addition in the vehicle-mounted control platform, and the master of media guidance system timing generation unit is connected with the media guidance grid, and be provided with the fault recognition unit in this fault management module, the malfunction indicator lamp control unit, scanning tools boundary element and failed storage management unit, enable pass is crossed performance signals and the loop that fault management module is come the device that node connected of self-diagnosis of scans media guidance grid, show according to different conditions enabling, just note and keep in repair with the warning driver.
Description of drawings
Fig. 1 is the interior autodiagnosis system architecture schematic diagram of the car of the utility model embodiment;
Fig. 2 is the fault display management hoist pennants of the interior autodiagnosis system architecture of car of the utility model embodiment;
Fig. 3 is single network architecture schematic diagram of the vehicle-mounted control platform of the utility model embodiment;
Fig. 4 is the dual network configuration diagram of the vehicle-mounted control platform of the utility model embodiment.
Description of reference numerals: 10-vehicle-mounted control platform (Head Unit); The 11-media guidance master of system is generation unit (MOST Timing Master) regularly; The 12-fault management module; 121-fault recognition unit; 122-malfunction indicator lamp control unit; 123-scanning tools boundary element; The diagnosis of 1231-circuit continuity; The functional weak point of examining of 1232-is disconnected; The diagnosis of 1233-control unit; 124-failed storage management unit; 1241-fault diagnosis code (DTC); The 13-central control module; 131-processor (CPU); 1311-multiplex's bus (Multiplex Bus); The compatible unit of 14-I/O (I/O Companion); The outer communication unit of 15-car; 151-tuner (Tuner); 152-whole world microwave access interoperability (WiMAX) system; 153-GPS (Global Position System) (GPS); 154-global communications systems (GSM); Communication unit in the 16-car; 161-local interlinkage network-driven control (LIN Bus driver); 162-control area network-driven control (CAN Bus driver); The 17-expansion unit; 171-Bluetooth transmission port (Bluetooth); 172-versabus (USB); 173-memory card slot (Memory Card); 20-media guidance grid (Media Oriented Systems Transport is called for short MOST Bus); 21-node (Node); The 30-device; 31-digitized video register (DVR); The active near infrared ray night vision system of 32-(ANV); 33-image-type deviation caution system (LDW); 34-image-type the place ahead anti-collision warning system (FCW); The 35-image shows (Display); 36-image-type side anti-collision warning system (SCW); 40-control area network (Control Area Network is called for short CAN Bus); 41-node (Node); The 50-instrument board; The 60-screen.
Embodiment
See also Fig. 1 to Fig. 4, be schematic diagram in the car of the utility model embodiment and framework block schematic diagram, the utility model In-vehicle networking includes in conjunction with autodiagnosis system in the monitoring car: a media guidance grid (Media Oriented Systems Transport is called for short MOST Bus) 20 and one vehicle-mounted control platform (Head Unit) 10; This media guidance grid 20 is provided with multinode 21, come jockey 30 by node 20, to form the main backbone links of media guidance grid 20, be provided with the master of media guidance system regularly generation unit 11 and fault management module 12 in addition in the vehicle-mounted control platform 10, and the master of media guidance system timing generation unit 11 is connected with media guidance grid 20, and be provided with fault recognition unit 121 in this fault management module 12, malfunction indicator lamp control unit 122, scanning tools boundary element 123 and failed storage management unit 124, enable pass is crossed the performance signals and the loop of the device 30 that the node 21 of fault management module 12 self-diagnosis of scans media guidance grids 20 connected, show according to different conditions enabling, just note and keep in repair with the warning driver.
Wherein this media guidance grid 20 with fiber optic fibers, plastic (POF) as transmission medium; And media guidance grid 20 is adopted wherein arbitrary arrangements such as the arrangement of bus (Bus) network, the arrangement of starlike (Star) network, the arrangement of ring-type (Ring) network, the arrangement of double-ring (Double Ring) network, the arrangement of tree-shaped (Tree) network, the arrangement of netted (Mesh) network and the arrangement of mixing shape (Hybrid) network; Further be provided with a central control module 13 in the vehicle-mounted control platform 10 in addition, the compatible unit of one I/O (I/O Companion) 14, the outer communication unit 15 of at least one car, communication unit 16 and expansion unit 17 at least one car, and this central control module 13 is provided with a processor (CPU) 131, buy car in installments outer communication unit 15 and expansion unit 17 of this processor 131 connects, connect for communication unit 16 in I/O compatible unit (I/OCompanion) 14 and the car and be provided with multiplex's bus (Multiplex Bus) 1311 in the processor 131, and connect for the media guidance master of system timing generation unit 11 (MOST Timing Master) by the data conversion of the compatible unit of I/O (I/O Companion) 14; Moreover its device 30 is wherein arbitrary devices such as digitized video register (DVR) 31, active near infrared ray night vision system (ANV) 32, image-type deviation caution system (LDW) 33, image-type the place ahead anti-collision warning system (FCW) 34, image demonstration (Display) 35 and image-type side anti-collision warning system (SCW) 36; And this fault management module 12 is carried out circuit continuity diagnosis 1231, functional diagnosis 1232 and control unit diagnosis 1233 with scanning tools boundary element 123, and the number of times that writes down and discern malfunction, fault type, fault mode and break down by failed storage management unit 124, be connected with malfunction indicator lamp control unit 122 by fault recognition unit 121 again, coming show state by malfunction indicator lamp in different malfunctions; And be provided with fault diagnosis code (DTC) 1241 in the failed storage management unit 124 of this fault management module 12, and fault diagnosis code (DTC) 1241 contains the conversion regime (CM) of suspicious parameter numbering, fault mode sign (FMI), frequency (OC) and suspicious numbering, is used for malfunction and the fault type of determining that each device is taken place; The outer communication unit 15 of this car is wherein arbitrary systems such as tuner (Tuner) 151, global microwave access interoperability (WiMAX) system 152, GPS (Global Position System) (GPS) 153 and global system for mobile communications (GSM) 154 in addition; And communication unit 16 is local interlinkage network-driven control (LIN Bus driver) 161 and one control area network-driven control (CAN Bus driver) 162 wherein arbitrary interfaces in the car; And the node 41 of control area network (CAN Bus) 40 further can be connected with arbitrary device 30, media guidance grid (MOST Bus) 20 can and be merged, to form the transmission of dual network framework in conjunction with control area network (CAN Bus) 40.
See also Fig. 1 to Fig. 4, In-vehicle networking of the present utility model is to be provided with fault management module 12 in vehicle-mounted control platform 10 in conjunction with autodiagnosis system preferred forms in the monitoring car, come the autodiagnosis built-in system by fault management module 12, and be shown in according to different faults state and fault handling method on the screen 60 of instrument board 50 or vehicle-mounted control platform 10 (as shown in Figure 1), and be provided with fault recognition unit 121 in this fault management module 12, malfunction indicator lamp control unit 122, scanning tools boundary element 123 and failed storage management unit 124, and this fault management module 12 is to carry out circuit continuity diagnosis 1231 with scanning tools boundary element 123, functional diagnosis 1232 and control unit diagnosis 1233, wherein agreement of this scanning tools boundary element 123 (Protocol) and connector (Connector) need meet following standard, SAE J1930 (ISO15031-2), SAE J1962 (ISO 15031-3) Diagnostic Connector, SAE J1978OBDII ScanTool, SAEJ1979 (ISO 15031-5) E/E Diagnostic Test Modes, SAE 2190, SAE2012 (ISO 15031-6) Diagnostic Trouble Codes, ISO 9141-2Diagnostic Protocol Standard and SAE J2534 (the power supply communication partly) etc., be connected and diagnose with each device 30 enabling, and circuit continuity diagnosis 1231 comprises each node (Node) 41,21 control area network (CAN Bus) 40 and media guidance grid (MOST Bus) 20 loop problem diagnosis (disconnection/short circuit/no signal), and external device (ED) connection diagnostic, as monitor (Camera), tuner (Tuner) 151, whole world microwave access interoperability (WiMAX) system 152, GPS (Global Position System) (GPS) 153 and global system for mobile communications (GSM) 154 etc., whether keep unimpeded etc. to detect its circuit and loop, and functional diagnosis 1232 is whether confirm respectively to install 30 signal normal, as digital Video Recorder (DVR) 31, active near infrared ray night vision system (ANV) 32, image-type deviation caution system (LDW) 33, image-type the place ahead anti-collision warning system (FCW) 34, image shows (as Fig. 3 or shown in Figure 4) such as (Display) 35 and image-type side anti-collision warning systems (SCW) 36, or whether performance is not as expection, as hard disc and in-vehicle network speed etc., can normal operation with the function of guaranteeing this device 30, and control unit diagnosis 1233 is meant whether the central control module 13 in the vehicle-mounted control platform 10 can normally link and operate control with each control unit that installs 30, when scanning tools boundary element 123 diagnoses 1231 with circuit continuity, data after its diagnosis can be delivered in the failed storage management unit 124 after functional diagnosis 1232 and the control unit diagnosis 1233, and write down and discern malfunction by failed storage management unit 124, fault type, fault mode and number of times of breaking down etc., and be provided with fault diagnosis code (DTC) 1241 in the failed storage management unit 124, and fault diagnosis code (DTC) 1241 contains suspicious parameter numbering, fault mode sign (FMI), the conversion regime (CM) of frequency (OC) and suspicious numbering, wherein this suspicious parameter numbering is used for determining node (Node) 21,41 states that break down, and fault mode sign (FMI) is used for determining node (Node) 21,41 fault types, as FMI=0: data effectively but exceed the scope (the most serious grade) of normal running, FMI=1: data effectively but be lower than the scope (the most serious grade) of normal running, FMI=2: data instability, interruption or incorrect, FMI=3: be higher than normal voltage or to high power supply short circuit, FMI=4: be lower than normal voltage or to low power supply short circuit, FMI=5: be lower than normal current or open circuit, FMI=6: be higher than normal current or shorted to earth, FMI=7: mechanical system is not responded maybe and can't be regulated, FMI=8: improper frequency or pulsewidth, FMI=9: unusual renewal speed, FMI=10: unusual change speed, FMI=11: cause reason the unknown of fault, FMI=12: parts damages, FMI=13: exceed calibration range, FMI=14: special instruction, FMI=15: data effectively but be higher than normal range (NR) (least serious level), FMI=16: data effectively but be lower than normal operation range (medium serious level), FMI=17: the network data mistake that receives etc., and frequency (OC) is the change frequency of a fault of expression from a kind of state to another kind of state, and the conversion regime (CM) of suspicious numbering is changed to 0 in addition; Can be when fault produces according to malfunction, fault type, fault mode and the number of times that breaks down produce a fault diagnosis code (DTC) 1241, and write down and discern by failed storage management unit 124, be connected with malfunction indicator lamp control unit 122 by fault recognition unit 121 again, coming show state by malfunction indicator lamp in different malfunctions, and as the manifestation mode of the fault display management table of autodiagnosis system in the car among Fig. 2, and according to rules, the decisions such as characteristic of fault parts and system are shown in instrument board 50 or the screen 60 according to different conditions again.
Fault management module 12 in this vehicle-mounted control platform (Head Unit) 10 is connected with the master of media guidance system timing generation unit 11 in addition, this media guidance grid (Media Oriented Systems Transport wherein, be called for short MOST Bus) the 20th, the latest network interface standard has MOST25 in a kind of car, MOST50 and MOST150 technology etc., and the utility model adopts state-of-the-art technology to make to possess and has stream mode to connect port interface design, and the IP kernel heart is arrangement crossfire passage automatically, and the elasticity of the flexibility ratio of reinforcement sequencing control and audio stream design, data can be handled with instant pattern, significantly reduced the data flow of processor 131, reached and simplify design with processor bus, the purpose that reduces cost.And media guidance grid (Media Oriented SystemsTransport, abbreviation MOST Bus) 20 is provided with multinode (Node) 21, connect (can be serial connection or and connect mode) to form media guidance grid (Media Oriented Systems Transport by node (Node) 21, abbreviation MOST Bus) 20 main backbone links, wherein this network with fiber optic fibers, plastic (POF) as transmission medium, and this media guidance grid (Media Oriented Systems Transport, abbreviation MOSTBus) 20 topological structure adopts bus (Bus) network to arrange, starlike (Star) network is arranged, ring-type (Ring) network is arranged, double-ring (Double Ring) network is arranged, tree-shaped (Tree) network is arranged, wherein arbitrary arrangement modes such as arrangement of netted (Mesh) network and the arrangement of mixing shape (Hybrid) network, and this node (Node) 21,41 have point-to-point (Peer-to-Peer) transmission means and plug and play (Plug-and-play) mechanism, it is more convenient to allow use go up, and can change fast according to different market and customer demand, and can support 64 nodes on the network at most, and can increase and decrease node 21 at any time, 41 numbers, and be responsible for continuing to send data by the master of media guidance system timing generation unit (MOST Timing Master) 11 and interrogate frame in the connection of ring topology structure, in addition other node 21,41 is sequential controlled cell (Timing Slave), controlled cell is if be in idle, states such as dormancy also can constantly receive the same preface (preamble) that is sent out from the master of media guidance system timing generation unit 11, letter head (packet header); Moreover, this media guidance grid (Media Oriented Systems Transport, be called for short MOST Bus) 20 employing fibre circuit transmission, be more suitable at a high speed, a large amount of data transmission, and can not exempt electromagnetic interference because of there being grounded circuit, transmit more stable, especially suitable as respectively installing the network that transmits mutually between 30 in the car.Be provided with a central control module 13 in this vehicle-mounted control platform (Head Unit) 10 in addition, the compatible unit of one I/O (I/O Companion) 14, the outer communication unit 15 of at least one car, communication unit 16 and expansion unit 17 at least one car, wherein this central control module 13 is provided with a processor (CPU) 131, this processor 131 is responsible for receiving all inside and outside signals of car and is integrated and control its running, and processor 131 is connected or also can all connects with the outer communication unit 15 of at least one car, wherein the outer communication unit 15 of this car is a tuner (Tuner) 151, whole world microwave access interoperability (WiMAX) system 152, wherein arbitrary systems such as GPS (Global Position System) (GPS) 153 and global system for mobile communications (GSM) 154 make by this in the car and can link and link up with the external world by the outer communication unit 15 of car.This processor 131 also is connected with expansion unit 17 in addition, this expansion unit 17 is wherein any device such as Bluetooth transmission port (Bluetooth) 171, universal serial convergence bus (USB) 172 and memory card slot (Memory Card) 173, and come transmission frequency by Bluetooth transmission port (Bluetooth) 171 is the short range, wireless signals of 2.45GHz, except numerical data, also can transmit sound, and be connected with external device (ED) by versabus (USB) 172, have plug and play (Plug-and-Play) and hot plug (Hot Attach﹠amp simultaneously; Detach) characteristic, and the specification that can support USB2.0 and USB3.0 are supported in addition uses such as the storage card of multiple form such as SD card, CF card, MS card, XD card by memory card slot (Memory Card) 173, come the access data for expanding.And these processor 131 inside are provided with multiplex's bus (Multiplex Bus) 1311 and are received from the video-audio signal that different bus (Bus) is transmitted in the car and are integrated the running that makes smooth and easy, wherein multiplex's bus (Multiplex Bus) 1311 connects for communication unit 16 in I/O compatible unit (I/O Companion) 14 and the car, and communication unit 16 is local interlinkage network-driven control (LIN Bus driver) 161 and one control area network-driven control (CAN Bus driver) 162 wherein arbitrary interfaces in the car, and control area network-driven control (CAN Bus driver) the 162nd, a kind of distributed tandem communication bus, data can be transmitted at each distributing intermodule, and can solve the transmission problem between each electronic control unit in the car, form the Control Network of automotive electronics inside, and control area network-driven control (CAN Bus driver) 162 operates on 5 volts of (V) buses, the demand of satisfied high speed of energy and wrong sensitivity makes it and 10 of vehicle-mounted control platforms (Head Unit) can transmit signal mutually.The local interlinkage network-driven is controlled (LIN Bus driver) the 161st, a kind of low-cost tandem communication bus that is used for automobile distributing electronic system in addition, this local interlinkage network-driven control (LIN Bus driver) the 161st operates on 12 volts of (V) single bus, to satisfy the demand of low speed, low frequency range, make it and 10 of vehicle-mounted control platforms (Head Unit) can transmit signal mutually.And multiplex's bus (Multiplex Bus) 1311 connects the compatible unit of an I/O (I/OCompanion) 14 in addition, for being received from media guidance grid (Media Oriented Systems Transport, be called for short MOST Bus) 20 signal, and the data conversion by the compatible unit of I/O (I/O Companion) 14 for the media guidance master of system regularly generation unit connect (MOST Timing Master) 11 connections.And the node 41 of control area network (CAN Bus) 40 further can be connected with arbitrary device 30, media guidance grid (MOST Bus) 20 can and be merged in conjunction with control area network (CAN Bus) 40, to form the transmission of dual network framework, by this, the performance signals and the loop of the device 30 that formation can be connected by the node 21 of fault management module 12 self-diagnosis of scans media guidance grids 20, show according to different conditions enabling, just note and keep in repair with the warning driver.
By above detailed description, can make and know this skill person and understand that the utility model can reach aforementioned purpose really, the real regulation that has met Patent Law, the whence proposes patent application.
But the above only is preferred embodiment of the present utility model, when not limiting the scope that the utility model is implemented with this; Therefore, all simple equivalent of being done according to the utility model claim and utility model description change and modify, and all should still belong in the scope that the utility model patent contains.
Claims (10)
1. an In-vehicle networking is characterized in that in conjunction with autodiagnosis system in the monitoring car, includes:
One media guidance grid, and this media guidance grid is provided with multinode, comes jockey by node, to form the main backbone links of media guidance grid; And
One vehicle-mounted control platform, be provided with the master of media guidance system regularly generation unit and fault management module in this vehicle-mounted control platform, and the master of this media guidance system timing generation unit is connected with described media guidance grid, and be provided with the fault recognition unit in this fault management module, the malfunction indicator lamp control unit, scanning tools boundary element and failed storage management unit, after diagnosing by the scanning tools boundary element earlier, data after the diagnosis are delivered in the described failed storage management unit, be connected with affiliated malfunction indicator lamp control unit by described fault recognition unit again, different malfunctions can be come show state by described malfunction indicator lamp, enable pass is crossed performance signals and the loop that described fault management module is come the device that node connected of the described media guidance grid of self-diagnosis of scans.
2. In-vehicle networking as claimed in claim 1 in conjunction with the monitoring car in the autodiagnosis system, it is characterized in that, this media guidance grid with fiber optic fibers, plastic as transmission medium.
3. In-vehicle networking as claimed in claim 1 is in conjunction with autodiagnosis system in the monitoring car, it is characterized in that this media guidance grid employing bus network arrangement, star-network arrangement, loop network arrangement, the arrangement of double-ring network, tree network arrangement, mesh network arrangement or the arrangement of mixing mesh network.
4. In-vehicle networking as claimed in claim 1 is in conjunction with autodiagnosis system in the monitoring car, it is characterized in that, further be provided with a central control module in this vehicle-mounted control platform, the compatible unit of one I/O, the outer communication unit of at least one car, communication unit and expansion unit at least one car, and this central control module is provided with a processor, this processor is connected with outer communication unit of car and expansion unit respectively, and be provided with multiplex's bus in this processor, communication unit is connected in compatible with described I/O respectively unit of this multiplex's bus and the described car, and the compatible unit of described I/O is connected with the described media guidance master of system timing generation unit.
5. In-vehicle networking as claimed in claim 1 is in conjunction with autodiagnosis system in the monitoring car, it is characterized in that this device is digitized video register, active near infrared ray night vision system, image-type deviation caution system, image-type the place ahead anti-collision warning system, image display system or image-type side anti-collision warning system.
6. In-vehicle networking as claimed in claim 1 is in conjunction with autodiagnosis system in the monitoring car, it is characterized in that, this fault management module is carried out circuit continuity diagnosis, functional diagnosis and control unit diagnosis with the scanning tools boundary element, and the number of times that writes down and discern malfunction, fault type, fault mode and break down by the failed storage management unit, be connected with described malfunction indicator lamp control unit by described fault recognition unit again, coming show state by malfunction indicator lamp in different malfunctions.
As claim 1 or 6 described In-vehicle networkings in conjunction with autodiagnosis system in the monitoring car, it is characterized in that, be provided with fault diagnosis code in the failed storage management unit of this fault management module, and this fault diagnosis code contains the conversion regime of suspicious parameter numbering, fault mode sign, frequency and suspicious numbering, is used for malfunction and the fault type of determining that each device is taken place.
8. In-vehicle networking as claimed in claim 4 is characterized in that in conjunction with autodiagnosis system in the monitoring car, and the outer communication unit of this car is tuner, global microwave access interoperability system, GPS (Global Position System) or global system for mobile communications.
9. In-vehicle networking as claimed in claim 4 is characterized in that in conjunction with autodiagnosis system in the monitoring car communication unit is local interlinkage network-driven control interface or network-driven control interface, a control area in this car.
10. In-vehicle networking as claimed in claim 9 is in conjunction with autodiagnosis system in the monitoring car, it is characterized in that, the node of this control area network further can be connected with arbitrary device, the media guidance grid can and be merged, to form the transmission of dual network framework in conjunction with the control area network.
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| CN103544268A (en) * | 2013-10-16 | 2014-01-29 | 潍柴动力股份有限公司 | Method and device for transforming fault monitored by external controller into diagnostic fault check in electric control system |
| CN103926889A (en) * | 2014-04-03 | 2014-07-16 | 清华大学苏州汽车研究院（相城） | In-vehicle network power management system based on MOST bus and control method thereof |
| CN104601701A (en) * | 2015-01-16 | 2015-05-06 | 深圳市中兴物联科技有限公司 | Vehicle-mounted network equipment and method for realizing vehicle-mounted network equipment |
| CN106656705A (en) * | 2016-11-18 | 2017-05-10 | 成都信息工程大学 | Vehicle-mounted MOST/CAN safety gateway and invasion detection method thereof |
| CN107291068A (en) * | 2017-07-28 | 2017-10-24 | 深圳市元征科技股份有限公司 | Vehicular diagnostic method and vehicle diagnostic equipment |
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- 2011-01-31 CN CN2011200335971U patent/CN202014271U/en not_active Expired - Fee Related
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| CN104601701A (en) * | 2015-01-16 | 2015-05-06 | 深圳市中兴物联科技有限公司 | Vehicle-mounted network equipment and method for realizing vehicle-mounted network equipment |
| CN104601701B (en) * | 2015-01-16 | 2019-04-05 | 深圳市中兴物联科技有限公司 | In-vehicle networking equipment and In-vehicle networking implementation method |
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| CN106656705A (en) * | 2016-11-18 | 2017-05-10 | 成都信息工程大学 | Vehicle-mounted MOST/CAN safety gateway and invasion detection method thereof |
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