CN203385800U - Electromagnetic compatibility performance test system by using multipath switch to achieve multipath signal transmission - Google Patents
Electromagnetic compatibility performance test system by using multipath switch to achieve multipath signal transmission Download PDFInfo
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- CN203385800U CN203385800U CN201320347838.9U CN201320347838U CN203385800U CN 203385800 U CN203385800 U CN 203385800U CN 201320347838 U CN201320347838 U CN 201320347838U CN 203385800 U CN203385800 U CN 203385800U
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- way switch
- anechoic chamber
- conversion module
- electro magnetic
- magnetic compatibility
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Abstract
The utility model discloses an electromagnetic compatibility performance test system by using a multipath switch to achieve multipath signal transmission. The electromagnetic compatibility performance test system comprises an anechoic chamber. The inside of the anechoic chamber is provided with a multipath switch comprising a plurality of receiving terminals and output terminals, wherein the plurality of receiving terminals are respectively used for receiving a plurality of signals to be tested from a product to be tested; and first electro-optics conversion modules used for converting electric signals from the output terminals of the multipath switch into optical signals and transmitting to the outside of the anechoic chamber. With the electromagnetic compatibility performance test system by using the multipath switch to achieve the multipath signal transmission, time sharing transmission of multipath port signals of the product to be tested can be carried out through a single path optical fiber, configuration number of photoelectric conversion devices can be decreased in practical application, and system cost can be reduced effectively.
Description
Technical field
The utility model relates to a kind of Electro Magnetic Compatibility proving installation, specifically relates to a kind of Electro Magnetic Compatibility test macro that adopts multi-way switch to realize the multiple signals transmission.
Background technology
Electro Magnetic Compatibility (EMC, i.e. Electromagnetic Compatibility) refers to that equipment or system can normally move in its electromagnetic environment, any equipment in this environment is not produced the ability of intolerable electromagnetic disturbance.Electro Magnetic Compatibility refers to that the electromagnetic disturbance that equipment produces the place environment in normal course of operation can not surpass certain limit value on the one hand; The equipment that refers on the other hand has immunity to interference to a certain degree to the electromagnetic disturbance existed in the environment of place.
While utilizing anechoic chamber, to carry out testing research work to the Electro Magnetic Compatibility of test product, need to the output signal of test product port be detected, in order to the function of judging test product, whether met designing requirement.To achieve these goals, usually adopt optical fiber to pass the anechoic chamber, body of wall, directly be connected with the test product port through the photoelectricity converter device.The shortcoming of this scheme is that each port need to mate independently photoelectric conversion module of a road, and photoelectric conversion module quantity is corresponding increase along with the increase of tested port number.
The utility model content
The utility model provides a kind of Electro Magnetic Compatibility test macro that adopts multi-way switch to realize the multiple signals transmission, the multi-channel port signal of realization timesharing transmission test product on single-path optical fiber, can reduce in actual applications the configuration quantity of photoelectric conversion device, effectively reduce the cost of system.
A kind of Electro Magnetic Compatibility test macro that adopts multi-way switch to realize the multiple signals transmission, comprise anechoic chamber,, and the inside of described anechoic chamber, is provided with:
Multi-way switch, described multi-way switch comprises a plurality of receiving ends, output terminal, described a plurality of receiving ends receive respectively from a plurality of measured signals of test product;
The first electrooptic conversion module, described the first electrooptic conversion module is for being converted into light signal and transferring to the anechoic chamber, outside from the electric signal of the output terminal of described multi-way switch.
For ease of realizing automatic control, improve detection efficiency, reduce testing staff's labour intensity simultaneously, as preferably, described employing multi-way switch is realized also being provided with the control system of optionally exporting measured signal for controlling described multi-way switch in the Electro Magnetic Compatibility test macro of multiple signals transmission.
For ease of arranging, as preferably, described control system comprises: computing machine is in the outside of described anechoic chamber,, for the selection instruction of output electrical signals; The second electrooptic conversion module, be in the outside of described anechoic chamber,, for receiving described selection instruction and being converted to the light signal instruction; The first photoelectric conversion module, be in the inside of described anechoic chamber,, for receiving described the second electrooptic conversion module, transforms the light signal instruction obtained and be converted to electrical signal form and input to described multi-way switch.By the steering order of computer input multi-way switch, make the multi-way switch automatic operation, from the multichannel input signal of test product, select a road output wherein.
For improving the compatibility of system, as preferably, between described computing machine and the second electrooptic conversion module, by the RS232 interface, intercom mutually.Between described the first photoelectric conversion module and multi-way switch, by the RS232 interface, intercom mutually.The RS232 electric signal of computer output need to access photoelectric conversion module, first converts optical signal transmission to, is converted to electric signal by photoelectric conversion module again after entering anechoic chamber,, and is connected to the RS232 control port of multi-way switch.
The outside of described anechoic chamber, also is provided with the second photoelectric conversion module, for the light signal that receives described the first electrooptic conversion module output and be converted to electric signal.Thereby obtain the performance test results of product corresponding ports to be measured by the detection computations to this electric signal.
The quantity of described multi-way switch setting can determine according to actual needs, and as preferably, the quantity of the receiving end of described multi-way switch is 4～16.Described anechoic chamber, can be selected fully anechoic chamber or semi-anechoic chamber.
Compared with prior art, the utility model beneficial effect is embodied in:
(1) adopt employing multi-way switch of the present utility model to realize the Electro Magnetic Compatibility test macro of multiple signals transmission, can realize the multi-channel port signal of timesharing transmission test product on single-path optical fiber, can reduce in actual applications the configuration quantity of photoelectric conversion device, effectively reduce the cost of system.
(2) the utility model, by the steering order of computer input mux, through RS232 bus transfer control signal, makes the multi-way switch automatic operation, from the multichannel input signal, select a road output wherein, automation mechanized operation, accuracy of detection and detection efficiency are higher.
The accompanying drawing explanation
Fig. 1 is the structural representation that employing multi-way switch of the present utility model is realized the Electro Magnetic Compatibility test macro of multiple signals transmission.
Embodiment
Embodiment 1
As shown in Figure 1, a kind of Electro Magnetic Compatibility test macro that adopts multi-way switch to realize the multiple signals transmission, comprise anechoic chamber, 1, the inside of anechoic chamber, is provided with: multi-way switch, this multi-way switch comprises a plurality of receiving ends, output terminal, and wherein a plurality of receiving ends receive respectively from a plurality of measured signals of test product; The first electrooptic conversion module, the first electrooptic conversion module is for being converted into light signal and transferring to anechoic chamber, 1 outside from the electric signal of the output terminal of multi-way switch.
The Electro Magnetic Compatibility test macro also comprises the control system of optionally exporting measured signal for controlling multi-way switch.Control system comprises: computing machine 2 is in the outside of anechoic chamber, 1, for the selection instruction of output electrical signals; The second electrooptic conversion module, be in the outside of anechoic chamber, 1, for receiving selection instruction and being converted to light signal instruction 3; The first photoelectric conversion module, be in the inside of anechoic chamber, 1, for receiving the second electrooptic conversion module, transforms the light signal instruction 3 obtained and be converted to electrical signal form and input to multi-way switch.The outside of anechoic chamber, 1 also is provided with the second photoelectric conversion module, for the light signal 4 that receives described the first electrooptic conversion module output and be converted to electric signal.
Between computing machine and the second electrooptic conversion module, by the RS232 interface, intercom mutually.Between the first photoelectric conversion module and multi-way switch, by the RS232 interface, intercom mutually.The quantity of the receiving end of multi-way switch is 4～16.The utility model anechoic chamber, used can be selected fully anechoic chamber or semi-anechoic chamber.
The employing multi-way switch of present embodiment realizes that the Electro Magnetic Compatibility test macro of multiple signals transmission is by the steering order of computing machine 2 input mux, through RS232 bus transfer control signal, make the multi-way switch automatic operation, from the multichannel input signal, select a road output wherein.The RS232 electric signal of computing machine 2 output need to access photoelectric conversion module, first converts optical signal transmission to, is converted to electric signal by photoelectric conversion module again after entering anechoic chamber,, and is connected to the RS232 control port of multi-way switch; Test product output Ge road electric signal is connected to respectively the input port of multi-way switch, the output port electric signal of multi-way switch is through photoelectric conversion module, first convert optical signal transmission to, arrival is converted to electric signal by photoelectric conversion module behind the anechoic chamber, outside again.
Above-mentioned embodiment is only preferred embodiment of the present utility model; not in order to limit the utility model; therefore all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. an Electro Magnetic Compatibility test macro that adopts multi-way switch to realize the multiple signals transmission, comprise anechoic chamber,, it is characterized in that, the inside of described anechoic chamber, is provided with:
Multi-way switch, described multi-way switch comprises a plurality of receiving ends, output terminal, described a plurality of receiving ends receive respectively from a plurality of measured signals of test product;
The first electrooptic conversion module, described the first electrooptic conversion module is for being converted into light signal and transferring to the anechoic chamber, outside from the electric signal of the output terminal of described multi-way switch.
2. employing multi-way switch as claimed in claim 1 is realized the Electro Magnetic Compatibility test macro of multiple signals transmission, it is characterized in that, described employing multi-way switch realizes that the Electro Magnetic Compatibility test macro of multiple signals transmission also is provided with the control system of optionally exporting measured signal for controlling described multi-way switch.
3. employing multi-way switch as claimed in claim 2 is realized the Electro Magnetic Compatibility test macro of multiple signals transmission, it is characterized in that, described control system comprises:
Computing machine, be in the outside of described anechoic chamber,, for the selection instruction of output electrical signals;
The second electrooptic conversion module, be in the outside of described anechoic chamber,, for receiving described selection instruction and being converted to the light signal instruction;
The first photoelectric conversion module, be in the inside of described anechoic chamber,, for receiving described the second electrooptic conversion module, transforms the light signal instruction obtained and be converted to electrical signal form and input to described multi-way switch.
4. employing multi-way switch as claimed in claim 3 is realized the Electro Magnetic Compatibility test macro of multiple signals transmission, it is characterized in that, between described computing machine and the second electrooptic conversion module, by the RS232 interface, intercoms mutually.
5. employing multi-way switch as claimed in claim 4 is realized the Electro Magnetic Compatibility test macro of multiple signals transmission, it is characterized in that, between described the first photoelectric conversion module and multi-way switch, by the RS232 interface, intercoms mutually.
6. employing multi-way switch as claimed in claim 1 is realized the Electro Magnetic Compatibility test macro of multiple signals transmission, it is characterized in that, the outside of described anechoic chamber, also is provided with the second photoelectric conversion module, for the light signal that receives described the first electrooptic conversion module output and be converted to electric signal.
7. employing multi-way switch as claimed in claim 1 is realized the Electro Magnetic Compatibility test macro of multiple signals transmission, it is characterized in that, the quantity of the receiving end of described multi-way switch is 4～16.
8. employing multi-way switch as claimed in claim 1 is realized the Electro Magnetic Compatibility test macro of multiple signals transmission, it is characterized in that, described anechoic chamber, is fully anechoic chamber or semi-anechoic chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320347838.9U CN203385800U (en) | 2013-06-14 | 2013-06-14 | Electromagnetic compatibility performance test system by using multipath switch to achieve multipath signal transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320347838.9U CN203385800U (en) | 2013-06-14 | 2013-06-14 | Electromagnetic compatibility performance test system by using multipath switch to achieve multipath signal transmission |
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| Publication Number | Publication Date |
|---|---|
| CN203385800U true CN203385800U (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320347838.9U Expired - Lifetime CN203385800U (en) | 2013-06-14 | 2013-06-14 | Electromagnetic compatibility performance test system by using multipath switch to achieve multipath signal transmission |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707222A (en) * | 2017-02-13 | 2017-05-24 | 云南电网有限责任公司电力科学研究院 | Signal transmission device |
| CN112147428A (en) * | 2019-12-26 | 2020-12-29 | 安波福电子(苏州)有限公司 | Electromagnetic compatibility testing system and method |
-
2013
- 2013-06-14 CN CN201320347838.9U patent/CN203385800U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707222A (en) * | 2017-02-13 | 2017-05-24 | 云南电网有限责任公司电力科学研究院 | Signal transmission device |
| CN112147428A (en) * | 2019-12-26 | 2020-12-29 | 安波福电子(苏州)有限公司 | Electromagnetic compatibility testing system and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140108 |