CN107272666B - Positioning method and device for electromagnetic compatibility test and new energy automobile - Google Patents
Positioning method and device for electromagnetic compatibility test and new energy automobile Download PDFInfo
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- CN107272666B CN107272666B CN201710642832.7A CN201710642832A CN107272666B CN 107272666 B CN107272666 B CN 107272666B CN 201710642832 A CN201710642832 A CN 201710642832A CN 107272666 B CN107272666 B CN 107272666B
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- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000004807 localization Effects 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 8
- 230000006870 function Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000003733 optic disk Anatomy 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
The invention provides a positioning method and device for electromagnetic compatibility testing and a new energy automobile. The positioning method for the electromagnetic compatibility test comprises the following steps: detecting a first electromagnetic value, and judging whether the first electromagnetic value exceeds a preset amplitude value or not; if the amplitude exceeds the preset amplitude, receiving a control instruction sent by upper computer software; controlling each part of the whole vehicle to be powered off in sequence according to the control instruction, and detecting a corresponding second electromagnetic value at the same time; when a certain component is powered down, the detected second electromagnetic value is reduced by more than a preset value compared with the first electromagnetic value, and the component is determined as an electromagnetic interference source. The positioning method and device for the electromagnetic compatibility test and the new energy automobile can quickly and accurately detect the electromagnetic interference source.
Description
Technical field
The present invention relates to technical field of new energy more particularly to a kind of localization methods of electromagnetic compatibility testing, dress
It sets and new-energy automobile.
Background technique
With the continuous progress of science and technology, new-energy automobile is more more and more universal.Currently, the ministry of electronics industry of electric automobile whole
Part is large number of, and electromagnetic environment is complex.For the exceeded positioning of electromagnetism of the electronic component of realization vehicle, power-off row is generallyd use
The method looked into successively disconnects the power supply or power-feed connector of suspicious component in Full Vehicle System, the amplitude until detecting electromagnetism
There is larger reduction.
But due in Full Vehicle System hardware or software context it is larger, will lead to vehicle when disconnecting a certain component
The variable of other multiple components in system changes, therefore brings larger difficulty for positioning critical component.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, the first purpose of this invention is to propose a kind of localization method of electromagnetic compatibility testing, can quickly,
Accurately detect electromagnetic interference source.
Second object of the present invention is to propose a kind of positioning device of electromagnetic compatibility testing.
Third object of the present invention is to propose a kind of new-energy automobile.
In order to achieve the above object, first aspect present invention embodiment proposes a kind of localization method of electromagnetic compatibility testing,
Include: the first EMV electromagnetic value of detection, and judges whether first EMV electromagnetic value is more than default amplitude；If it exceeds the default width
Value then receives the control instruction issued by upper computer software；The all parts of vehicle are controlled successively according to the control instruction
Lower electricity, while detecting corresponding second EMV electromagnetic value；When electric under a certain component, the second EMV electromagnetic value and first electricity that detect
Magnetic value is compared, when reduced amplitude is more than predetermined value, it is determined that the component is electromagnetic interference source.
The localization method of the electromagnetic compatibility testing of the embodiment of the present invention, by detecting the first EMV electromagnetic value, and in the first electricity
When magnetic value is more than default amplitude, the control instruction issued by upper computer software is received, and control according to the control instruction
The all parts of vehicle successively lower electricity, while detecting corresponding second EMV electromagnetic value, when electric under a certain component, detect second
EMV electromagnetic value is compared with first EMV electromagnetic value, when reduced amplitude is more than predetermined value, it is determined that the component is electromagnetic interference
Source can quickly and accurately detect electromagnetic interference source.
In addition, the localization method of the electromagnetic compatibility testing of the embodiment of the present invention, there are also following additional technical features:
In one embodiment of the invention, the upper computer software accesses to controller local area network by preset interface
CAN, the CAN are connected with all parts of vehicle.
In one embodiment of the invention, the preset interface is onboard diagnostics mouth or gateway.
In one embodiment of the invention, the method also includes: pass through the upper computer software and obtain the vehicle
All parts status signal；The all parts shape of the vehicle is monitored according to the status signal of all parts of the vehicle
State information.
In order to achieve the above object, second aspect of the present invention embodiment proposes a kind of positioning device of electromagnetic compatibility testing,
Include: detection module, for detecting the first EMV electromagnetic value, and judges whether first EMV electromagnetic value is more than default amplitude；Receive mould
Block, for receiving the control instruction issued by upper computer software when first EMV electromagnetic value is more than the default amplitude；Control
Molding block, all parts for controlling vehicle according to the control instruction are successively lower electric, while detecting corresponding second electromagnetism
Value；Determining module, for when electric under a certain component, the second EMV electromagnetic value detected to reduce compared with first EMV electromagnetic value
Amplitude be more than predetermined value when, it is determined that the component be electromagnetic interference source.
The positioning device of the electromagnetic compatibility testing of the embodiment of the present invention, by detecting the first EMV electromagnetic value, and in the first electricity
When magnetic value is more than default amplitude, the control instruction issued by upper computer software is received, and control according to the control instruction
The all parts of vehicle successively lower electricity, while detecting corresponding second EMV electromagnetic value, when electric under a certain component, detect second
EMV electromagnetic value is compared with first EMV electromagnetic value, when reduced amplitude is more than predetermined value, it is determined that the component is electromagnetic interference
Source can quickly and accurately detect electromagnetic interference source.
In addition, the positioning device of the electromagnetic compatibility testing of the embodiment of the present invention, there are also following additional technical features:
In one embodiment of the invention, the upper computer software accesses to controller local area network by preset interface
CAN, the CAN are connected with all parts of vehicle.
In one embodiment of the invention, the preset interface is onboard diagnostics mouth or gateway.
In one embodiment of the invention, described device further include:
Obtain module, the status signal of all parts for obtaining the vehicle by the upper computer software；
Monitoring module monitors all parts shape of the vehicle for the status signal according to all parts of the vehicle
State information.
In order to achieve the above object, third aspect present invention embodiment proposes a kind of new-energy automobile, including as above on the one hand
The positioning device of electromagnetic compatibility testing described in embodiment.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is the flow chart of the localization method of the electromagnetic compatibility testing of one embodiment of the invention；
Fig. 2 is the flow chart of the localization method of the electromagnetic compatibility testing of another embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the positioning device of the electromagnetic compatibility testing of one embodiment of the invention；
Fig. 4 is the structural schematic diagram of the positioning device of the electromagnetic compatibility testing of another embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the localization method, device and new energy vapour of the electromagnetic compatibility testing of the embodiment of the present invention are described
Vehicle.
Fig. 1 is the flow chart of the localization method of the electromagnetic compatibility testing of one embodiment of the invention.
As shown in Figure 1, the localization method of the electromagnetic compatibility testing includes:
S101 detects the first EMV electromagnetic value, and judges whether the first EMV electromagnetic value is more than default amplitude.
Since the electronic component of electric automobile whole is large number of, electromagnetic environment is complex.Usual situation
Under, the EMV electromagnetic value shadow of vehicle is lower than certain numerical value.If being higher than certain numerical value, illustrate the electricity for having component in electric car
Magnetic is exceeded, therefore needs to carry out electromagnetic compatibility testing to electric car.Since vehicle wakes up, the difference of power-on and power-off control logic,
With the variation of vehicle-state, there are stronger successive logical relations, and the prior art is difficult to realize single portion under vehicle environment
The state of part controls.
In one embodiment of the invention, it can detect the first EMV electromagnetic value.First EMV electromagnetic value can be the current inspection of vehicle
Survey initial electromagnetic value when starting.After obtaining the first EMV electromagnetic value, it can be compared with default amplitude, judge whether to surpass with this
Cross default amplitude.
S102, if it exceeds default amplitude, then receive the control instruction issued by upper computer software.
If the first EMV electromagnetic value detected has been more than default amplitude, the control issued by upper computer software can receive
Instruction.
Wherein, upper computer software can access to controller local area network CAN by preset interface, CAN and vehicle it is each
Component is connected.Preset interface can be onboard diagnostics mouth or gateway.
It in one embodiment of the invention, can be by host computer in Electro Magnetic Compatibility (EMC) test for carrying out vehicle
Software is by onboard diagnostics mouth or gateway accessing into the CAN network of vehicle.Wherein, the component of vehicle can be equipped with corresponding son
Controller, such as vehicle window controller, the control clean windshield-wiper controller of rain brush of control window lifting.Above-mentioned sub-controller passes through
CAN bus connects to form network, realizes the information exchange between them.Upper computer software can be by the control that pre-sets
Instruction, can the component to vehicle carry out single control, avoid the variable of other associated components from changing.
When the first EMV electromagnetic value is more than default amplitude, control instruction can be issued by upper computer software, to each of vehicle
A component carries out electromagnetic compatibility detection.
S103, all parts for controlling vehicle according to control instruction are successively lower electric, while detecting corresponding second EMV electromagnetic value.
In one embodiment of the invention, all parts that vehicle can be controlled according to control instruction are successively lower electric.It is a certain
It is electric under component, corresponding second EMV electromagnetic value when will generate the variation of EMV electromagnetic value, therefore can detect that electric under a certain component.
S104, when electric under a certain component, for the second EMV electromagnetic value detected compared with the first EMV electromagnetic value, reduced amplitude is super
When crossing predetermined value, it is determined that component is electromagnetic interference source.
For example, if when electric under power windows, the second EMV electromagnetic value detected, with the first initial EMV electromagnetic value phase
Than it has been more than predetermined value that reduced amplitude is very big, then can determine that power windows is electromagnetic interference source.Determining electric vehicle
After window is electromagnetic interference source, power windows can be further processed, such as replacement operation, electromagnetism is exceeded asks for solution
Topic.
The localization method of the electromagnetic compatibility testing of the embodiment of the present invention, by detecting the first EMV electromagnetic value, and in the first electricity
When magnetic value is more than default amplitude, the control instruction issued by upper computer software is received, and vehicle is controlled according to control instruction
All parts successively lower electricity, while detecting corresponding second EMV electromagnetic value, when electric under a certain component, the second electromagnetism for detecting
Value compared with the first EMV electromagnetic value, reduced amplitude be more than predetermined value when, it is determined that component is electromagnetic interference source, can quickly,
Accurately detect electromagnetic interference source.
In addition, as shown in Fig. 2, the localization method of the electromagnetic compatibility testing, further includes:
S105 obtains the status signal of all parts of vehicle by upper computer software.
S106 monitors all parts status information of vehicle according to the status signal of all parts of vehicle.
In one embodiment of the invention, it can also be collected by upper computer software using CAN network and obtain each of vehicle
The status signal of a component recycles all parts status information of status signal monitoring vehicle.Such as: it can monitor and work as front truck
Speed, the information about power of battery, current driving gear information, vehicle window state etc..It is convenient to the work to all parts of vehicle
Make state implementing monitoring.In addition, can also be achieved the quick control to each unit status of vehicle, each portion is such as switched by instruction
The state of part, to save the time for manually adjusting all parts state.
It should be understood that the vehicle of identical platform can develop general upper computer software, the vehicle of different platform can
To provide the upper computer software of differentiation for different control logics.
The localization method of the electromagnetic compatibility testing of the embodiment of the present invention obtains each portion of vehicle by upper computer software
The status signal of part, and according to all parts status information of the status signal of all parts of vehicle monitoring vehicle, Neng Goufang
Just to the working condition implementing monitoring of all parts of vehicle.
To achieve the goals above, the embodiment of the present invention also proposes a kind of positioning device of electromagnetic compatibility testing.
Fig. 3 is the structural schematic diagram of the positioning device of the electromagnetic compatibility testing of one embodiment of the invention.
As shown in figure 3, the positioning device of the electromagnetic compatibility testing includes: detection module 31, receiving module 32, control mould
Block 33 and determining module 34.
Detection module 31 judges whether the first EMV electromagnetic value is more than default amplitude for detecting the first EMV electromagnetic value.
Receiving module 32 is used to receive the control issued by upper computer software when the first EMV electromagnetic value is more than default amplitude
Instruction.
Control module 33 is used to control all parts of vehicle successively lower electricity according to control instruction, while detecting corresponding the
Two EMV electromagnetic values.
Determining module 34 is used for when electric under a certain component, and the second EMV electromagnetic value detected is compared with the first EMV electromagnetic value, drop
When low amplitude is more than predetermined value, it is determined that component is electromagnetic interference source.
Optionally, upper computer software accesses to controller local area network CAN by preset interface, CAN and vehicle it is each
Component is connected.
Optionally, preset interface is onboard diagnostics mouth or gateway.
As shown in figure 4, the positioning device of the electromagnetic compatibility testing, which may also include, obtains module 35 and monitoring module 36.
Obtain the status signal that module 35 is used to obtain all parts of vehicle by upper computer software.
Monitoring module 36 is used for all parts status information of the status signal monitoring vehicle according to all parts of vehicle.
It should be noted that the localization method for the electromagnetic compatibility testing that above-described embodiment proposes, is also applied for the present invention
The positioning device for the electromagnetic compatibility testing that embodiment proposes, details are not described herein.
The positioning device of the electromagnetic compatibility testing of the embodiment of the present invention, by detecting the first EMV electromagnetic value, and in the first electricity
When magnetic value is more than default amplitude, the control instruction issued by upper computer software is received, and vehicle is controlled according to control instruction
All parts successively lower electricity, while detecting corresponding second EMV electromagnetic value, when electric under a certain component, the second electromagnetism for detecting
Value compared with the first EMV electromagnetic value, reduced amplitude be more than predetermined value when, it is determined that component is electromagnetic interference source, can quickly,
Accurately detect electromagnetic interference source.
To achieve the goals above, the embodiment of the present invention proposes a kind of new-energy automobile, including as above on the one hand implements
The positioning device of the electromagnetic compatibility testing of example.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing custom logic function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system, including the system of processor or other can be held from instruction
The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium ", which can be, any may include, stores, communicates, propagates or pass
Defeated program is for instruction execution system, device or equipment or the dress used in conjunction with these instruction execution systems, device or equipment
It sets.The more specific example (non-exhaustive list) of computer-readable medium include the following: there is the electricity of one or more wirings
Interconnecting piece (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that can on it the paper of print routine or other suitable be situated between
Matter, because can then be edited, be interpreted or when necessary with other for example by carrying out optical scanner to paper or other media
Suitable method is handled electronically to obtain program, is then stored in computer storage.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.Such as, if realized with hardware in another embodiment, following skill well known in the art can be used
Any one of art or their combination are realized: have for data-signal is realized the logic gates of logic function from
Logic circuit is dissipated, the specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene can compile
Journey gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
Suddenly be that relevant hardware can be instructed to complete by program, program can store in a kind of computer readable storage medium
In, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.If integrated module with
The form of software function module is realized and when sold or used as an independent product, also can store computer-readable at one
It takes in storage medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..Although having been shown and retouching above
The embodiment of the present invention is stated, it is to be understood that above-described embodiment is exemplary, and should not be understood as to limit of the invention
System, those skilled in the art can be changed above-described embodiment, modify, replace and become within the scope of the invention
Type.
Claims (9)
1. a kind of localization method of electromagnetic compatibility testing characterized by comprising
The first EMV electromagnetic value is detected, and judges whether first EMV electromagnetic value is more than default amplitude, first EMV electromagnetic value is vehicle
Initial electromagnetic value of current detection when starting；
If it exceeds the default amplitude, then receive the control instruction issued by upper computer software；
The all parts for controlling vehicle according to the control instruction are successively lower electric, while detecting corresponding second EMV electromagnetic value；
When electric under a certain component, for the second EMV electromagnetic value detected compared with first EMV electromagnetic value, reduced amplitude is more than pre-
When fixed number value, it is determined that the component is electromagnetic interference source.
2. the method as described in claim 1, which is characterized in that the upper computer software accesses to controller by preset interface
Local area network CAN, the CAN are connected with all parts of vehicle.
3. method according to claim 2, which is characterized in that the preset interface is onboard diagnostics mouth or gateway.
4. the method as described in claim 1, which is characterized in that further include:
The status signal of all parts of the vehicle is obtained by the upper computer software；
The all parts status information of the vehicle is monitored according to the status signal of all parts of the vehicle.
5. a kind of positioning device of electromagnetic compatibility testing characterized by comprising
Detection module for detecting the first EMV electromagnetic value, and judges whether first EMV electromagnetic value is more than default amplitude, described first
EMV electromagnetic value is the initial electromagnetic value when current detection of vehicle starts；
Receiving module is used for when first EMV electromagnetic value is more than the default amplitude, what reception was issued by upper computer software
Control instruction；
Control module for controlling all parts of vehicle successively lower electricity according to the control instruction, while detecting corresponding the
Two EMV electromagnetic values；
Determining module, for when electric under a certain component, the second EMV electromagnetic value detected to reduce compared with first EMV electromagnetic value
Amplitude be more than predetermined value when, it is determined that the component be electromagnetic interference source.
6. device as claimed in claim 5, which is characterized in that the upper computer software accesses to controller by preset interface
Local area network CAN, the CAN are connected with all parts of vehicle.
7. device as claimed in claim 6, which is characterized in that the preset interface is onboard diagnostics mouth or gateway.
8. device as claimed in claim 5, which is characterized in that further include:
Obtain module, the status signal of all parts for obtaining the vehicle by the upper computer software；
Monitoring module, all parts state for monitoring the vehicle for the status signal according to all parts of the vehicle are believed
Breath.
9. a kind of new-energy automobile, which is characterized in that the new-energy automobile includes such as the described in any item electricity of claim 5-8
The positioning device of magnetic compatibility test.
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| CN201710642832.7A CN107272666B (en) | 2017-07-31 | 2017-07-31 | Positioning method and device for electromagnetic compatibility test and new energy automobile |
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| CN201710642832.7A CN107272666B (en) | 2017-07-31 | 2017-07-31 | Positioning method and device for electromagnetic compatibility test and new energy automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108072796A (en) * | 2016-11-14 | 2018-05-25 | 厦门雅迅网络股份有限公司 | A kind of interference source localization method and device of vehicle-mounted multimedia terminal |
| CN107919889A (en) * | 2017-11-20 | 2018-04-17 | 北京小米移动软件有限公司 | The interference source detection method and device of coupled interference |
| CN111239510B (en) * | 2019-12-30 | 2022-07-12 | 宁波奥克斯电气股份有限公司 | Self-service test method and test system for EMC of air conditioner |
| CN112098756B (en) * | 2020-09-16 | 2023-07-18 | 东风柳州汽车有限公司 | Electromagnetic compatibility problem positioning method, device, equipment and storage medium |
| CN112964956B (en) * | 2021-03-19 | 2023-01-24 | 潍柴动力股份有限公司 | Method and device for detecting electromagnetic interference of vehicle |
| CN117192273B (en) * | 2023-11-02 | 2024-02-02 | 广州计测检测技术股份有限公司 | Electromagnetic compatibility detection method, system, equipment and storage medium |
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