CN208654637U - A kind of remote monitoring system of the automobile bench test based on vehicle-mounted CAN bus - Google Patents
A kind of remote monitoring system of the automobile bench test based on vehicle-mounted CAN bus Download PDFInfo
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- CN208654637U CN208654637U CN201821479137.XU CN201821479137U CN208654637U CN 208654637 U CN208654637 U CN 208654637U CN 201821479137 U CN201821479137 U CN 201821479137U CN 208654637 U CN208654637 U CN 208654637U
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Abstract
The utility model discloses a kind of remote monitoring systems of automobile bench test based on vehicle-mounted CAN bus, it include: fault detection and control mechanism, fault detection and control mechanism are connected with the CAN bus of automobile Bench Test System, for reading the data of CAN bus in real time, and data streams read is handled, whether Detecting data frame is in normal operating condition, if detecting that the test-bed breaks down, fault message is sent to controlling terminal；Controlling terminal, controlling terminal and fault detection and control mechanism communicate to connect, and are remotely controlled for sending corresponding control instruction according to the fault message received test-bed.The utility model is by the way that fault detection and control mechanism to be linked into the CAN bus of associated stand pilot system, it is monitored engineer remotely to testing stand, working efficiency is greatly promoted, improves test mass, what is made is more efficiently completed based on vehicle-mounted CAN bus type automobile bench test.
Description
Technical field
The utility model relates to automobile technical field, in particular to a kind of base is tried in the automobile rack of vehicle-mounted CAN bus
The remote monitoring system tested.
Background technique
Automobile product generally will also carry out the bench test of some simulations, so-called bench test, which refers to, to be tried before factory
The component tested is placed on above the rack that one is specially designed and is tested, to detect whether the performance of test parts reaches defined
Standard, the detection that testpieces only passes through bench test can come into operation later.Common bench test includes some starts
Machine test, automobile axle test etc., in automobile axle test, often require to use automobile axle test-bed simulated automotive
Load test is carried out in road running mode or specific operation.
The existing control mechanism based on vehicle-mounted CAN bus type automobile bench test is all to be located at test-bed executing agency
Side, automobile test engineer operate and control to testing stand using dedicated control cabinet, due to most of total based on CAN
The fatigue test test period of line class is very long, easily hundreds of thousands or up to a million secondary, and operation not intermittently in 24 hours is also required to several
The time of the moon.If during the test, damaging occurs in testpieces or testing stand breaks down, especially at night, engineer is past
Find that testpieces state when engineers being waited to find is it is possible that otherwise variation, leads to engineering toward first time is difficult
Shi Buneng correctly evaluates test.If testing stand itself fail cannot be found in time, test may result in
Serious, irreversible damage occurs for platform.
Utility model content
In order to solve problems in the prior art, the utility model embodiment provides a kind of vapour based on vehicle-mounted CAN bus
The remote monitoring system of vehicle bench test is unable to real-time remote monitoring test-bed to overcome, testing stand itself in the prior art
Break down cannot find in time so as to cause test-bed occur it is serious, it is irreversible damage and cannot remotely control
The problems such as test-bed processed.
In order to solve the above technical problems, the technical solution adopted in the utility model is:
On the one hand, a kind of remote monitoring system of automobile bench test based on vehicle-mounted CAN bus, the system are provided
Include:
The CAN bus of fault detection and control mechanism, the fault detection and control mechanism and automobile Bench Test System
It is connected, is handled for reading the data of CAN bus in real time, and to data streams read, whether Detecting data frame is in
Fault message is sent to controlling terminal if detecting that the test-bed breaks down by normal operating condition；
Controlling terminal, the controlling terminal and the fault detection and control mechanism communicate to connect, and receive for basis
Fault message send corresponding control instruction test-bed remotely controlled.
Further, the fault detection and control mechanism include:
Master controller, CAN controller and CAN signal transceiver；
The master controller and the CAN controller and controlling terminal communicate to connect, for handling and receiving and dispatching interior control
System instruction and diagnostic message；
The CAN controller is connected between the master controller and CAN signal transceiver, for the number received
It is believed that breath carries out protocol conversion, it will be sent to the master controller after the data conversion of the CAN bus read in real time and handle
And the CAN signal transceiver will be sent to after master controller transmission data conversion；
The CAN signal transceiver is also connect with the CAN bus, is turned for carrying out modulus to the data information received
It changes.
Further, the fault detection and control mechanism further include:
CAN_HIGH signal wire and CAN_LOW signal wire, the CAN_HIGH signal wire and CAN_LOW signal wire are connected to
Between the CAN signal transceiver and the CAN bus, it is used for transmission data-signal.
Further, the controlling terminal includes at least:
Receiving module, the receiving module and the fault detection and control mechanism communicate to connect, and the receiving module is used
In the fault message for receiving the fault detection and control mechanism transmission；
Sending module, the sending module and the fault detection and control mechanism communicate to connect, and the sending module will
Control instruction is remotely sent to the fault detection and control mechanism, is remotely controlled test-bed.
Further, the CAN controller includes at least:
Interface management logic distributes message buffer for explaining the instruction from the master controller, and to main control
Device provides interruption and status information；
CAN2.0B carries out the data information received for encapsulating the corresponding CAN protocol for testing corresponding components
Protocol conversion；
Buffer area is sent, the transmission buffer area is connected between CAN2.0B described in the interface management logical AND, described
Information in CAN network will be sent to for storing the master controller by sending buffer area；
Acceptance fitration, the acceptance fitration are connect with the CAN2.0B, for the data and identification code received
Content compare with decide whether receive information；
Buffer area is received, the reception buffer area is connected with the acceptance fitration, connects from CAN bus for storing
The data information of receipts.
Technical solution provided by the embodiment of the utility model has the benefit that
The remote monitoring system of automobile bench test provided by the embodiment of the utility model based on vehicle-mounted CAN bus is led to
It crosses in the CAN bus that fault detection and control mechanism are linked into associated stand pilot system, reads the data of bus in real time, and
Relevant information is handled, whether place enters normal operating condition to Detecting data frame, if detecting that the test goes wrong,
It sends these fault messages in the controlling terminal of engineer by communications service provider and base station by way of wireless network,
It allows engineer to understand testing stand state at the first time, handles it in time.Engineer can be by controlling terminal at one's side, remotely
It sends instruction to control testing stand, changes testing stand state in time, solve the problems in test process, greatly promote work
Efficiency improves test mass, can make more to be efficiently completed based on the automobile bench test of vehicle-mounted CAN bus type.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the long-range monitoring of the automobile bench test shown according to an exemplary embodiment based on vehicle-mounted CAN bus
The structural schematic diagram of system；
Fig. 2 is the structural schematic diagram of fault detection shown according to an exemplary embodiment and control mechanism；
Fig. 3 is the structural schematic diagram of CAN controller shown according to an exemplary embodiment；
Fig. 4 is the circuit diagram of fault detection shown according to an exemplary embodiment and control mechanism.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, implement below in conjunction with the utility model
Attached drawing in example, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described reality
Applying example is only the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this reality
With novel protected range.
Fig. 1 is the long-range monitoring of the automobile bench test shown according to an exemplary embodiment based on vehicle-mounted CAN bus
The structural schematic diagram of system, it is shown referring to Fig.1, the system comprises:
Fault detection and control mechanism 1, the fault detection and control mechanism 1 and the CAN of automobile Bench Test System are total
Line is connected, and handles for reading the data of CAN bus in real time, and to data streams read, and whether Detecting data frame is located
In normal operating condition, if detecting that the test-bed breaks down, fault message is sent to controlling terminal 2.
Controlling terminal 2, the controlling terminal 2 is communicated to connect with the fault detection and control mechanism 1, for according to reception
To fault message send corresponding control instruction test-bed remotely controlled.
Specifically, system is connected by fault detection and control mechanism 1 with the CAN bus of automobile Bench Test System,
Fault detection and control mechanism 1 are linked into the CAN bus of automobile Bench Test System, read the data of CAN bus in real time,
And fault detection and control mechanism handle data streams read, and whether Detecting data frame is in normal operating condition,
If detecting that the test-bed breaks down, such as: test abnormality stops, test current overload, test frequency break down
Fault message is sent to by way of wireless network by communications service provider and base station by lamp, fault detection and control mechanism 1
Controlling terminal 2 is made in time even the engineer not in testing ground is allowed also to understand test-bed state in first time
Processing.Engineer can deal with scheme according to the fault message received, then send corresponding control by controlling terminal 2
System instruction remotely controls test-bed, changes test-bed state in time, solves the problems, such as during testing.
Fig. 2 is the structural schematic diagram of fault detection shown according to an exemplary embodiment and control mechanism, referring to Fig. 2 institute
Show, the fault detection and control mechanism 1 include:
Master controller 11, CAN controller 12, CAN signal transceiver 13 and CAN_HIGH signal wire 14 and CAN_LOW letter
Number line 15.
The master controller 11 is communicated to connect with the CAN controller 12 and controlling terminal 2, for handling and receiving and dispatching vehicle
Interior control instruction and diagnostic message.The CAN controller 12 be connected to the master controller 11 and CAN signal transceiver 13 it
Between, for carrying out protocol conversion to the data information received, institute will be sent to after the data conversion of the CAN bus read in real time
Master controller is stated to carry out processing and be sent to the CAN signal transceiver after the master controller is sent data conversion.Institute
It states CAN signal transceiver 13 also to connect with the CAN bus, for carrying out analog-to-digital conversion to the data information received.It is described
CAN_HIGH signal wire 14 and CAN_LOW signal wire 15 are connected between the CAN signal transceiver and the CAN bus, are used
In transmission data-signal.
Specifically, CAN bus data are transmitted to CAN signal by CAN_HIGH signal wire 14 and CAN_LOW signal wire 15
Transceiver 13, CAN signal transceiver 13 are sent to after the CAN bus data read are converted to digital signal by analog signal
CAN controller 12, CAN controller 12 carry out protocol conversion to the digital signal, if test-bed breaks down, obtain event
Hinder the data of code, and the data of error code be sent to master controller 11, master controller 11 according to the data of the error code with
And the Protocol diagnostic fault message pre-established, and fault message is passed through into communications service provider and base by way of wireless network
Station is sent to controlling terminal 2.Engineer understands test-bed state by controlling terminal 2, deals in time.Engineer can be with
It is dealt with scheme according to the fault message received, corresponding control instruction is then sent to main control by controlling terminal 2
The corresponding control instruction received is sent to CAN controller 12 by device 11, master controller 11, and CAN controller 12 is to the control
Instruction carries out protocol conversion and reports the CAN received at CAN signal transceiver 13, CAN signal transceiver 13 is sent to after CAN message
Text is converted into analog signal, is then transmitted in CAN bus by CAN_HIGH signal wire 14 and CAN_LOW signal wire 15, from
And realize and CAN bus based test-bed is remotely controlled, change test-bed state in time, solves during testing
Problem.
Fig. 3 is the structural schematic diagram of CAN controller shown according to an exemplary embodiment, described referring to shown in Fig. 3
CAN controller includes at least:
Interface management logic distributes message buffer for explaining the instruction from the master controller, and to main control
Device provides interruption and status information.
CAN2.0B carries out the data information received for encapsulating the corresponding CAN protocol for testing corresponding components
Protocol conversion.
Buffer area is sent, the transmission buffer area is connected between CAN2.0B described in the interface management logical AND, described
Information in CAN network will be sent to for storing the master controller by sending buffer area；
Acceptance fitration, the acceptance fitration are connect with the CAN2.0B, for the data and identification code received
Content compare with decide whether receive information.
Buffer area is received, the reception buffer area is connected with the acceptance fitration, connects from CAN bus for storing
The data information of receipts.
Fig. 4 is the circuit diagram of fault detection shown according to an exemplary embodiment and control mechanism, referring to shown in Fig. 4,
Using SJA1000 as CAN controller in the utility model embodiment, using PCA82C250 as CAN signal transceiver.Its
Middle SJA1000 is a kind of CAN bus communication controler chip, supports CAN2.0B agreement, and PCA82C250 is driving CAN controller
With the interface of CAN bus, provides and function is sent and received to the differential of bus.
What needs to be explained here is that the system is before application, it is necessary first to be carried out to receiving register, mask register
Setting guarantees that CAN node receives the message in corresponding vehicle-mounted CAN bus, and corresponding test is corresponded to the CAN protocol of components
It is stored in CAN controller, then clock register, baud rate register, mode register etc. is set so as to complete all
The application of the CAN bus of the necessary initialization operation of SJA1000 and adaptation different technical parameter.
In conclusion technical solution provided by the embodiment of the utility model has the benefit that
The remote monitoring system of automobile bench test provided by the embodiment of the utility model based on vehicle-mounted CAN bus is led to
It crosses in the CAN bus that fault detection and control mechanism are linked into associated stand pilot system, reads the data of bus in real time, and
Relevant information is handled, whether place enters normal operating condition to Detecting data frame, if detecting that the test goes wrong,
It sends these fault messages in the controlling terminal of engineer by communications service provider and base station by way of wireless network,
It allows engineer to understand testing stand state at the first time, handles it in time.Engineer can be by controlling terminal at one's side, remotely
It sends instruction to control testing stand, changes testing stand state in time, solve the problems in test process, greatly promote work
Efficiency improves test mass, can make more to be efficiently completed based on the automobile bench test of vehicle-mounted CAN bus type.
It should be understood that the long-range monitoring of the automobile bench test provided by the above embodiment based on vehicle-mounted CAN bus
System is when triggering monitoring business, only the example of the division of the above functional modules, can basis in practical application
It needs and is completed by different functional modules above-mentioned function distribution, i.e., the internal structure of system is divided into different function moulds
Block, to complete all or part of the functions described above.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (5)
1. a kind of remote monitoring system of the automobile bench test based on vehicle-mounted CAN bus, which is characterized in that the system packet
It includes:
Fault detection and control mechanism, the fault detection and control mechanism are connected with the CAN bus of automobile Bench Test System
It connects, is handled for reading the data of CAN bus in real time, and to data streams read, whether Detecting data frame is in normal
Fault message is sent to controlling terminal if detecting that the test-bed breaks down by operating status；
Controlling terminal, the controlling terminal and the fault detection and control mechanism communicate to connect, for according to the event received
Barrier information sends corresponding control instruction and is remotely controlled test-bed.
2. the remote monitoring system of the automobile bench test according to claim 1 based on vehicle-mounted CAN bus, feature exist
In the fault detection and control mechanism include:
Master controller, CAN controller and CAN signal transceiver；
The master controller and the CAN controller and controlling terminal communicate to connect, and refer to for handling and receiving and dispatching interior control
Order and diagnostic message；
The CAN controller is connected between the master controller and CAN signal transceiver, for believing the data received
Breath carry out protocol conversion, will be sent to after the data conversion of the CAN bus read in real time the master controller carry out processing and
The CAN signal transceiver is sent to after the master controller is sent data conversion；
The CAN signal transceiver is also connect with the CAN bus, for carrying out analog-to-digital conversion to the data information received.
3. the remote monitoring system of the automobile bench test according to claim 2 based on vehicle-mounted CAN bus, feature exist
In the fault detection and control mechanism further include:
CAN_HIGH signal wire and CAN_LOW signal wire, the CAN_HIGH signal wire and CAN_LOW signal wire are connected to described
Between CAN signal transceiver and the CAN bus, it is used for transmission data-signal.
4. being to the long-range monitoring of the automobile bench test described in 3 any one based on vehicle-mounted CAN bus according to claim 1
System, which is characterized in that the controlling terminal includes at least:
Receiving module, the receiving module and the fault detection and control mechanism communicate to connect, and the receiving module is for connecing
Receive the fault message of the fault detection and control mechanism transmission；
Sending module, the sending module and the fault detection and control mechanism communicate to connect, and the sending module will control
Instruction is remotely sent to the fault detection and control mechanism, is remotely controlled test-bed.
5. the remote monitoring system of the automobile bench test according to claim 2 based on vehicle-mounted CAN bus, feature exist
In the CAN controller includes at least:
Interface management logic distributes message buffer, and mention to master controller for explaining the instruction from the master controller
For interruption and status information；
CAN2.0B carries out agreement to the data information received for encapsulating the corresponding CAN protocol for testing corresponding components
Conversion；
Buffer area is sent, the transmission buffer area is connected between CAN2.0B described in the interface management logical AND, the transmission
Buffer area will be sent to information in CAN network for storing the master controller；
Acceptance fitration, the acceptance fitration are connect with the CAN2.0B, for in the data and identification code received
Appearance compares to decide whether to receive information；
Buffer area is received, the reception buffer area is connected with the acceptance fitration, received from CAN bus for storing
Data information.
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| CN201821479137.XU CN208654637U (en) | 2018-09-10 | 2018-09-10 | A kind of remote monitoring system of the automobile bench test based on vehicle-mounted CAN bus |
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| CN201821479137.XU CN208654637U (en) | 2018-09-10 | 2018-09-10 | A kind of remote monitoring system of the automobile bench test based on vehicle-mounted CAN bus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919788A (en) * | 2018-09-10 | 2018-11-30 | 汽-大众汽车有限公司 | A kind of remote monitoring system and method for the automobile bench test based on vehicle-mounted CAN bus |
| CN111966083A (en) * | 2020-09-18 | 2020-11-20 | 大连理工大学 | Automobile CAN bus information safety simulation device |
-
2018
- 2018-09-10 CN CN201821479137.XU patent/CN208654637U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919788A (en) * | 2018-09-10 | 2018-11-30 | 汽-大众汽车有限公司 | A kind of remote monitoring system and method for the automobile bench test based on vehicle-mounted CAN bus |
| CN111966083A (en) * | 2020-09-18 | 2020-11-20 | 大连理工大学 | Automobile CAN bus information safety simulation device |
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