CN106018979A - FM radiation intensity testing system for vehicle FM intelligent device - Google Patents
FM radiation intensity testing system for vehicle FM intelligent device Download PDFInfo
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- CN106018979A CN106018979A CN201610339666.9A CN201610339666A CN106018979A CN 106018979 A CN106018979 A CN 106018979A CN 201610339666 A CN201610339666 A CN 201610339666A CN 106018979 A CN106018979 A CN 106018979A
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- placement platform
- vehicle
- smart machine
- test system
- platform
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/10—Radiation diagrams of antennas
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention provides an FM radiation intensity testing system for a vehicle FM intelligent device. The system comprises a device accommodating platform and a test instrument assembly, the device accommodating platform is provided with an accommodation position for accommodating the tested device, the test instrument assembly comprises an instrument accommodating platform, a reception antenna and a frequency spectrum analyzer, the instrument accommodating platform is arranged separate from the device accommodating platform, the reception antenna is placed on the instrument accommodating platform and separated from the accommodating position of the tested device for certain distance, and the frequency spectrum analyzer is placed on the instrument accommodating platform and electrically connected with the reception antenna. According to technical schemes of the invention, FM emission of low-power short-distance FM intelligent device applied in an electronic production terminal can be tested effectively, and the problem that a test system for testing design samples and finished products of FM emission antennas lacks in the prior art is solved.
Description
Technical field
The present invention relates to electromagnetic radiation technical field of measurement and test, in particular it relates to a kind of vehicle-mounted FM smart machine
FM radiant intensity test system.
Background technology
FM is the abbreviation of English Frequency Modulation, means frequency modulation(PFM), refers generally to frequency modulation wide
Broadcasting, its electromagnetic radiation frequency range is 87.5-108MHz (hereinafter referred to as: FM electromagnetic wave).
In recent years, along with the rise of car networking technology, FM this seem out-of-date technology, smart machine in car
Interconnection aspect embodies the technical advantage of low cost, technology maturation, good stability, becomes car networking intelligence and sets
Standby indispensable technology point of application.Vehicle-mounted FM smart machine passes through FM electromagnetic radiation, so that car
Carry FM smart machine and Che Nei original FM electromagnetic receiver connects, by such technical combinations, car
The audio content that vehicle-mounted FM smart machine is had can be played back by master by vehicle audio.
Receiving or launch FM electromagnetic wave signal, that just be unable to do without FM and launches antenna.But, little merit
Rate, short-range FM emission system are not also applied, therefore, in prior art still in consumer electronics terminal
Do not exist and FM is launched the design sample of antenna and test system that finished product is tested.
Summary of the invention
It is an object of the invention to provide the FM radiant intensity test system of a kind of vehicle-mounted FM smart machine,
Aim to solve the problem that prior art there is no and FM is launched the design sample of antenna and survey that finished product is tested
The problem of test system.
For solving above-mentioned technical problem, the technical scheme is that a kind of vehicle-mounted FM smart machine of offer
FM radiant intensity test system, including equipment placement platform and test instrunment assembly, equipment placement platform
Being provided with the placement location for placing equipment under test, test instrunment assembly includes instrument placement platform, receives sky
Line and spectrum analyzer, instrument placement platform and equipment placement platform interval are arranged, and reception antenna is placed on instrument
On device placement platform, and and place equipment under test placement location between spaced apart preset distance, spectrum analysis
Instrument is placed on instrument placement platform, and spectrum analyzer electrically connects with reception antenna.
Alternatively, test instrunment assembly also includes reference plane plate, and reference plane plate tiles on the ground, instrument
Device placement platform is positioned on reference plane plate, and by being connected cable between spectrum analyzer with reference plane plate
Connect.
Alternatively, test instrunment assembly also includes that the first insulating cell, the first insulating cell are placed on instrument and put
On horizontalization platform, reception antenna and spectrum analyzer are both placed on the first insulating cell.
Alternatively, equipment placement platform is placed with the second insulating cell for placing equipment under test, second
Insulating cell is placed on the placement location for placing equipment under test of equipment placement platform.
Alternatively, preset distance is 2.5m to 3.5m.
Alternatively, the distance between the side of the close equipment placement platform of reception antenna and instrument placement platform
For 10cm to 15cm.
Alternatively, the height of equipment placement platform is 1.5m to 2.0m.
Alternatively, the height of instrument placement platform is 1.0m to 1.5m.
Alternatively, 1/4th of the wavelength of a length of FM electromagnetic wave of reception antenna.
Alternatively, reference plane plate is the metallic plate that thickness is more than or equal to 0.25mm.
In the present invention, by this test system, it is possible to small-power, the short distance to electronic product terminal applies
FM smart machine FM launch effectively test, thus ensure that electronic product FM launch merit
The concordance of rate, the effectiveness in certain scope, such as can suppress other noise interior and not disturb
FM signal outside car.Therefore, there is no during the present invention solves prior art and FM transmitting antenna is set
The problem that meter sample and finished product carry out the test system tested.
Accompanying drawing explanation
Fig. 1 is the knot of the embodiment of the FM radiant intensity test system of the vehicle-mounted FM smart machine of the present invention
Structure schematic diagram.
In the accompanying drawings:
10, equipment under test assembly；11, equipment placement platform；12, equipment under test；
13, the second insulating cell；20, test instrunment assembly；21, instrument placement platform；
22, reception antenna；23, spectrum analyzer；24, reference plane plate；
25, the first insulating cell；30, power supply.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality
Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein
Only in order to explain the present invention, it is not intended to limit the present invention.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, and it can
With directly on another element or be connected on this another element.When an element is referred to as " connecting
In " another element, it can be directly to another element or be indirectly connected to this another yuan
On part.
Also, it should be noted the orientation term such as left and right, upper and lower in the present embodiment, it it is only phase each other
To concept or with the normal operating condition of product as reference, and should not be regarded as restrictive.
As it is shown in figure 1, the FM radiant intensity test system of the vehicle-mounted FM smart machine of the present embodiment includes
Equipment placement platform 11 and test instrunment assembly 20, equipment placement platform 11 is provided with for placing equipment under test
The placement location of 12, test instrunment assembly 20 includes that instrument placement platform 21, reception antenna 22 and frequency spectrum divide
Analyzer 23, instrument placement platform 21 and equipment placement platform 11 interval are arranged, and reception antenna 22 is placed on
On instrument placement platform 21, and and place equipment under test placement location between spaced apart preset distance, i.e. connect
Receiving spaced apart preset distance between antenna 22 and equipment under test 12, spectrum analyzer 23 is placed on instrument and places
On platform 21, spectrum analyzer 23 electrically connects with reception antenna 22.Wherein, equipment placement platform 11 He
Equipment under test 12 is the ingredient of MUT module under test 10.
By this test system, it is possible to the small-power of electronic product terminal applies, short-range FM intelligence
The FM transmitting of equipment is effectively tested, thus ensure that electronic product FM launches the concordance of power,
Effectiveness in certain scope, such as, can suppress other noise interior and not disturb the FM outside car to believe
Number.Therefore, there is no design sample and the finished product that FM is launched antenna during the present invention solves prior art
The problem carrying out the test system tested.
In the present embodiment, test instrunment assembly 20 also includes reference plane plate 24, and reference plane plate 24 is flat
On the ground, instrument placement platform 21 is positioned on reference plane plate 24, and spectrum analyzer 23 and reference
By connecting cable connection between surface plate 24.Setting by reference plane version 24, it is possible to specifically
Electromagnetic Interference shields, and increases the contact area with ground by this reference plane version 24, thus
Guarantee the ground connection effectiveness of spectrum analyzer 23, improve the accuracy of test.
Specifically, in order to further ensure that spectrum analyzer 23 will not be by the external world during test
Interference, therefore, test instrunment assembly 20 also includes that the first insulating cell 25, the first insulating cell 25 are placed
On instrument placement platform 21, reception antenna 22 and spectrum analyzer 23 are both placed in the first insulating cell
On 25.Carry out support spectrum analyzer 23 by the first insulating cell 25, thus realize more preferable insulating properties and protect
Protect.Similarly, equipment under test assembly 10 also includes that the second insulating cell 13, the second insulating cell 13 are placed
At the placement location for placing equipment under test 12 of equipment placement platform 11, insulating cell 13 is used for putting
Put equipment under test 12.Realize the insulating properties to equipment under test 12 by the second insulating cell 13 to protect.
Shown in Fig. 1, owing to sending out in space limited in car when vehicle-mounted FM intelligent electronic device uses
Penetrate FM electromagnetic wave and receive this FM electromagnetic wave and then play out, obtaining being more nearly reality to test
The test data used, therefore, during test, reception antenna 22 is put with being used on equipment placement platform 11
Putting the preset distance between the placement location of equipment under test 12 is 2.5m to 3.5m, i.e. reception antenna 22 with
Preset distance between equipment under test 12 is 2.5m to 3.5m, preferably 3m.Further, placement location with
Distance between the side of the close instrument placement platform 21 of equipment placement platform 11 is 10cm to 15cm,
Being preferably 10cm, namely equipment under test 12 is preferably 10cm, reception antenna with the minimum range of this side
22 and instrument placement platform 21 close equipment placement platform 11 side between distance be 10cm extremely
15cm, preferably 10cm.
In the present embodiment, in order to further to simulation real use state, therefore, equipment is placed flat
The height of platform 11 is 1.5m to 2.0m, preferably 1.5m.Further, the height of instrument placement platform 21 is
1.0m to 1.5m, preferably 1.2m.Wherein it is preferred to the aspect ratio spectrum analysis that equipment under test 12 is placed
The height that instrument 23 is placed wants that high (but the placing height of equipment under test 12 can also be with the putting of spectrum analyzer 23
Degree of setting high is equal, is i.e. 1.5m).
Preferably, 1/4th of the wavelength of a length of FM electromagnetic wave of reception antenna 22.Assume that the light velocity is
The wavelength of c, FM electromagnetic wave be the frequency of λ, FM electromagnetic wave be f, then λ=c/f, now, reception antenna
/ 4th of a length of λ of 22.
In the present embodiment, reference plane plate 24 is more than or equal to the metallic plate of 0.25mm, i.e. this ginseng for thickness
Examining surface plate 24 and may be greater than the copper equal to 0.25mm or aluminium sheet, this reference plane plate 24 can also be
Thickness other sheet of metallic material not less than 0.55mm；And the length of this reference plane plate 24 is about 1m,
Wide about 0.5m.
As it is shown in figure 1, during test, provide electric energy by power supply 30 for spectrum analyzer 23,
Ensure that test smoothly completes.
These are only presently preferred embodiments of the present invention, not in order to limit the present invention, all the present invention's
Any amendment, equivalent and the improvement etc. made within spirit and principle, should be included in the guarantor of the present invention
Within the scope of protecting.
Claims (10)
1. the FM radiant intensity test system of a vehicle-mounted FM smart machine, it is characterised in that include setting
Standby placement platform (11) and test instrunment assembly (20), described equipment placement platform (11) is provided with for putting
Put the placement location of equipment under test (12), described test instrunment assembly (20) include instrument placement platform (21),
Reception antenna (22) and spectrum analyzer (23), described instrument placement platform (21) is placed with described equipment
Platform (11) interval is arranged, and described reception antenna (22) is placed on described instrument placement platform (21),
And and place described equipment under test (12) placement location between spaced apart preset distance, described spectrum analysis
Instrument (23) is placed on described instrument placement platform (21), and described spectrum analyzer (23) connects with described
Receive antenna (22) electrical connection.
The FM radiant intensity test system of vehicle-mounted FM smart machine the most as claimed in claim 1, it is special
Levying and be, described test instrunment assembly (20) also includes reference plane plate (24), described reference plane plate (24)
On the ground, described instrument placement platform (21) is positioned on described reference plane plate (24), and institute in tiling
State between spectrum analyzer (23) with described reference plane plate (24) by being connected cable connection.
The FM radiant intensity test system of vehicle-mounted FM smart machine the most as claimed in claim 2, it is special
Levying and be, described test instrunment assembly (20) also includes the first insulating cell (25), described first insulation lining
Pad (25) is placed on described instrument placement platform (21), described reception antenna (22) and described frequency spectrum
Analyser (23) is both placed on described first insulating cell (25).
The FM radiant intensity test system of vehicle-mounted FM smart machine the most as claimed in claim 3, it is special
Levy and be, described equipment placement platform (11) is placed with second exhausted for place equipment under test (12)
Edge liner (13), described second insulating cell (13) is placed on being used for of described equipment placement platform (11)
Place on the placement location of described equipment under test (12).
5. the FM radiant intensity of the vehicle-mounted FM smart machine as according to any one of Claims 1-4 is surveyed
Test system, it is characterised in that described preset distance is 2.5m to 3.5m.
The FM radiant intensity test system of vehicle-mounted FM smart machine the most as claimed in claim 5, it is special
Levying and be, the close described equipment of described reception antenna (22) and described instrument placement platform (21) is placed
Distance between the side of platform (11) is 10cm to 15cm.
The FM radiant intensity test system of vehicle-mounted FM smart machine the most as claimed in claim 6, it is special
Levying and be, the height of described equipment placement platform (11) is 1.5m to 2.0m.
The FM radiant intensity test system of vehicle-mounted FM smart machine the most as claimed in claim 7, it is special
Levying and be, the height of described instrument placement platform (21) is 1.0m to 1.5m.
The FM radiant intensity test system of vehicle-mounted FM smart machine the most as claimed in claim 8, it is special
Levy and be, 1/4th of the wavelength of a length of FM electromagnetic wave of described reception antenna (22).
The FM radiant intensity test system of vehicle-mounted FM smart machine the most as claimed in claim 9, it is special
Levying and be, described reference plane plate (24) is the metallic plate that thickness is more than or equal to 0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610339666.9A CN106018979A (en) | 2016-05-19 | 2016-05-19 | FM radiation intensity testing system for vehicle FM intelligent device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610339666.9A CN106018979A (en) | 2016-05-19 | 2016-05-19 | FM radiation intensity testing system for vehicle FM intelligent device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106018979A true CN106018979A (en) | 2016-10-12 |
Family
ID=57095707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610339666.9A Pending CN106018979A (en) | 2016-05-19 | 2016-05-19 | FM radiation intensity testing system for vehicle FM intelligent device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106018979A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111007333A (en) * | 2019-08-29 | 2020-04-14 | 苏州风正帆智能科技有限公司 | Utilize smart machine's of thing networking test system |
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| CN101452024A (en) * | 2008-12-24 | 2009-06-10 | 北京航空航天大学 | Mobile electromagnetic environment monitoring system based on 3S technology |
| CN101458283A (en) * | 2008-12-30 | 2009-06-17 | 南京师范大学 | Experimental bench for diagnosing radiation EMI mechanism and radiation EMI mechanism simple diagnostic method |
| CN101819236A (en) * | 2010-04-01 | 2010-09-01 | 北京邮电大学 | Method for testing antenna gain by using GTEM cell |
| CN103278787A (en) * | 2013-03-29 | 2013-09-04 | 国家电网公司 | On-line GIS (gas-insulated switchgear) partial discharge monitoring and check method |
| US8742997B2 (en) * | 2011-05-19 | 2014-06-03 | Apple Inc. | Testing system with electrically coupled and wirelessly coupled probes |
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2016
- 2016-05-19 CN CN201610339666.9A patent/CN106018979A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101452024A (en) * | 2008-12-24 | 2009-06-10 | 北京航空航天大学 | Mobile electromagnetic environment monitoring system based on 3S technology |
| CN101458283A (en) * | 2008-12-30 | 2009-06-17 | 南京师范大学 | Experimental bench for diagnosing radiation EMI mechanism and radiation EMI mechanism simple diagnostic method |
| CN101819236A (en) * | 2010-04-01 | 2010-09-01 | 北京邮电大学 | Method for testing antenna gain by using GTEM cell |
| US8742997B2 (en) * | 2011-05-19 | 2014-06-03 | Apple Inc. | Testing system with electrically coupled and wirelessly coupled probes |
| CN103278787A (en) * | 2013-03-29 | 2013-09-04 | 国家电网公司 | On-line GIS (gas-insulated switchgear) partial discharge monitoring and check method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111007333A (en) * | 2019-08-29 | 2020-04-14 | 苏州风正帆智能科技有限公司 | Utilize smart machine's of thing networking test system |
| CN111007333B (en) * | 2019-08-29 | 2022-06-21 | 苏州风正帆智能科技有限公司 | Utilize smart machine's of thing networking test system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 518000 Guangdong Shenzhen Longgang District Bantian Street five and Avenue North Yuan Zheng science and Technology Factory 1 Factory 4 floor. Applicant after: Shenzhen tyre Automobile Maintenance Technology Co., Ltd. Address before: 518000 Shenzhen, Guangdong province Longgang District ban Xue Gang Industrial Zone five and Avenue North Yuan Zheng Industrial Park. Applicant before: Shenzhen city car wheel linked data Technology Co. Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |