CN218240424U - Anti-interference testing device - Google Patents
Anti-interference testing device Download PDFInfo
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- CN218240424U CN218240424U CN202221647635.7U CN202221647635U CN218240424U CN 218240424 U CN218240424 U CN 218240424U CN 202221647635 U CN202221647635 U CN 202221647635U CN 218240424 U CN218240424 U CN 218240424U
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Abstract
The utility model relates to an anti-interference testing device for the interference killing feature of test equipment in radio signal transmission process, include inclosed test shielding box and locate interference antenna, frequency spectrum monitoring antenna, the test equipment that awaits measuring in the test shielding box, the test shielding box provides an inclosed test environment, makes and locates test equipment avoids external electromagnetic signal's interference in the test shielding box. The interference antenna sends interference signals with controllable and adjustable frequency, amplitude, strength and other parameter values, the signal stability is high, the linearity is good, the anti-interference testing device provides a closed testing environment, various using scenes of the transmitting equipment to be tested and the receiving equipment to be tested are simulated in the anti-interference testing device, the whole testing environment and the interference signals for testing are in a controllable state, repeated testing is carried out on the same product for many times, the performance of the evaluation product can be judged, and the anti-interference testing device can be used for analyzing and searching problems.
Description
Technical Field
The utility model relates to a wireless device detects technical field, concretely relates to anti-interference testing device.
Background
With the application of a large number of mobile terminals, mobile internet and hotspot devices, although convenience is brought to daily life of people, the transmission environment of wireless signals is more and more complex, wireless devices working on the same or similar frequency bands interfere with each other, and the normal work of wireless signal transmitting devices and wireless signal receiving devices is influenced.
Therefore, in the production process of the equipment, the anti-interference capability test of the wireless signal receiving equipment becomes a necessary link of product production. At present, the method for measuring and evaluating the anti-interference capability of a product is relatively original, and generally comprises the following steps:
1. a simple interference source is built, the interference intensity is set, manual sensing counting is carried out on the tested equipment, and simultaneously the interference resistance of the tested equipment is compared with the interference resistance of similar products in the market, so that the interference resistance of the self-produced products is roughly determined.
The disadvantages are as follows: (1) The measuring result is inaccurate, and the interference source is simply built, so that the self state of the interference source is unstable, and the measuring result is greatly influenced. (2) The test data is not global, the interference signal of the built simple interference source is single, the actual application interference condition is diverse, and the reaction of the equipment is completely different under different interference environments, so that the equipment 1 is better than the equipment 2 under the environment A, and the equipment 2 is better than the equipment 1 under the environment B, and the equipment capability cannot be judged from the global angle.
2. Field measurement: the tested product is carried by a tester to be tested in the field in the actual application scene, and manual counting measurement is still adopted.
The disadvantages are that: (1) The labor cost is high, and the test is carried out dozens of times or even hundreds of times, and each time, the test is carried out for a plurality of hours by 2-5 workers. (2) The measurement result is inaccurate, if a plurality of persons test at the same time, the mutual interference among the devices is very obvious, and if the models of the devices participating in comparison are different, the reference to the test result is not provided. (3) The influence of the external environment on the interference signal is large, and the interference signal is influenced by factors such as personnel intensity, equipment intensity, position change and the like during field time measurement, so that the data change of each measurement is large, the data can only be roughly judged, and the data has no analyzability. (4) The test data has no global property, because the interference condition in the actual environment is diverse, the reaction of the same equipment is different under different interference environments, and the interference signals in the test environment can not be repeated, so that the anti-interference capability of the equipment can not be judged from the global angle.
Therefore, the interference signals in the simple test environment and the field test have large changes and no regularity, and the measured data can only be finally evaluated by the tested product and cannot be used for analyzing and searching problems.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide an apparatus for testing interference resistance, which has a stable testing environment, accurate and reliable testing results, and can be repeatedly implemented many times.
The utility model provides an anti-interference test device for test is in wireless signal transmission process, the interference killing feature of receiving terminal, including inclosed test shielding box with locate interference antenna, frequency spectrum monitoring antenna, at least one effective signal acquisition equipment, the examination transmitting device that awaits measuring and await measuring receiving equipment in the test shielding box, interference antenna with the frequency spectrum monitoring antenna adjusts the mounted position through first position adjusting device, awaits measuring transmitting device and await measuring receiving equipment and adjust the mounted position through second position adjusting device and third position adjusting device respectively, interference antenna is used for sending interference signal, the frequency spectrum monitoring antenna is used for full frequency channel cover to receive interference signal in the test shielding box.
Further, the first position adjusting device, the second position adjusting device and the third position adjusting device are respectively arranged on different side walls or the same side wall of the inner side of the test shielding box body, so that the interference antenna, the frequency spectrum monitoring antenna, the to-be-tested transmitting device and the to-be-tested receiving device move within a preset range.
Further, first position control device includes first slide rail, first mobile motor, first locking mechanism and antenna installing support, first mobile motor detachably install in on the antenna installing support, the interfering antenna with spectrum monitoring antenna fixed mounting in on the antenna installing support, first mobile motor promotes the antenna installing support moves along first slide rail, in order to realize the interfering antenna with the position adjustment of spectrum monitoring antenna, first locking mechanism locates on the antenna installing support, first locking mechanism is used for the position locking of antenna installing support.
Further, the second position adjusting device comprises a second slide rail, a second moving motor, a second locking mechanism and an equipment mounting bracket, the second moving motor is detachably mounted on the equipment mounting bracket, the to-be-tested transmitting equipment is fixedly mounted on the equipment mounting bracket, the second moving motor pushes the equipment mounting bracket to move along the second slide rail so as to adjust the position of the to-be-tested transmitting equipment, the second locking mechanism is arranged on the equipment mounting bracket, and the second locking mechanism is used for locking the position of the equipment mounting bracket.
Further, the third position adjusting device comprises a third slide rail, a third movable motor, a third locking mechanism and an equipment clamping jig, wherein the third movable motor is detachably mounted on the equipment clamping jig, a receiving device to be tested is fixedly mounted on the equipment clamping jig, the third movable motor pushes the equipment clamping jig to move along the third slide rail so as to adjust the position of the receiving device to be tested, the third locking mechanism is arranged on the equipment clamping jig, and the third locking mechanism is used for locking the position of the equipment clamping jig.
Furthermore, a swing motor is arranged below the equipment clamping jig and used for controlling the equipment clamping jig to swing at a preset angle so as to simulate different states of the receiving equipment to be tested during use.
Furthermore, the equipment clamping jig is also provided with the effective signal acquisition equipment, and the effective signal acquisition equipment is used for identifying and acquiring effective signals sent by the receiving equipment to be tested.
Further, the test shielding box body comprises an upper half box body and a lower half box body, the upper half box body is movably connected with the lower half box body through a connecting piece, the upper half box body is covered with the lower half box body, and a closed test cavity is formed inside the test shielding box body.
Furthermore, the test shielding box body is made of wave-absorbing materials so as to reduce the interference of electromagnetic waves inside and outside the test shielding box body.
Furthermore, the frequency spectrum monitoring antenna and the interference antenna are arranged in parallel, and the interference antenna is arranged between the transmitting device to be tested and the receiving device to be tested.
In the above anti-interference testing device, the testing shielding box body provides a closed testing environment, so that the testing equipment in the testing shielding box body is prevented from being interfered by external electromagnetic signals. The anti-interference testing device provides a closed testing environment, various using scenes of a transmitting device to be tested and a receiving device to be tested are simulated in the anti-interference testing device, the whole testing environment and the interference signals for testing are in a controllable state, repeated testing can be carried out on the same product for many times, the performance of an evaluation product can be judged, and the anti-interference testing device can be used for analyzing and searching problems. The product of the utility model is simple in structure, easy to produce, low in cost, convenient to popularize.
Drawings
Fig. 1 is a schematic structural diagram of an anti-interference testing apparatus according to an embodiment of the present invention.
Fig. 2 is an internal schematic diagram of the anti-interference testing apparatus according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and drawings.
Please refer to fig. 1 and fig. 2, which illustrate an anti-interference testing apparatus 100 provided by an embodiment of the present invention, for testing the anti-interference capability of a receiving end in the wireless signal transmission process, including a sealed testing shielding box 10 and an interference antenna 20, a spectrum monitoring antenna 30, at least one effective signal collecting device, an emission device 200 to be tested, and a receiving device 300 to be tested, which are disposed in the testing shielding box 10, wherein the interference antenna 20 and the spectrum monitoring antenna 30 adjust the installation position through a first position adjusting device 40, the emission device 200 to be tested and the receiving device 300 to be tested adjust the installation position through a second position adjusting device 50 and a third position adjusting device 60, respectively, the interference antenna 20 is used for sending an interference signal, and the spectrum monitoring antenna 30 is used for receiving the interference signal in the testing shielding box 10 in a full-band coverage manner.
Specifically, the anti-interference testing apparatus 100 has an external device, and the external device is configured to generate an adjustable and controllable interference signal, and the interference antenna 20 transmits the interference signal; the frequency spectrum monitoring antenna 30 sends the monitored interference signal to the external device, and the external device can adjust the generated interference signal according to the signal fed back by the frequency spectrum monitoring antenna 30 so as to correct the signal error caused by the factors such as the temperature drift and the error of the device.
Specifically, a wireless connection is established between the transmitting device to be tested 200 and the receiving device to be tested 300, and data is normally transmitted and received through a wireless signal, wherein the wireless signal normally received and identified by the receiving device to be tested 300 is used as an effective signal, and the effective signal collecting device is used for identifying and collecting the effective signal received by the receiving device to be tested 300.
In the anti-interference test, the interference antenna 20 sends an interference signal, when the frequency of the interference signal is close to the frequency of the wireless signal between the transmitting device 200 to be tested and the receiving device 300 to be tested, the interference signal passing through the devices can be caused, at this time, the wireless signal received by the receiving device 300 to be tested can be distorted, interrupted and the like under the action of the interference signal, the effective signal acquisition device identifies the wireless signal received by the receiving device 300 to be tested, the number of the effective signals which can be identified can reflect the anti-interference capability of the receiving device 300 to be tested.
Meanwhile, parameters such as frequency and amplitude of the interference signal are changed, and the anti-interference capability of the receiving device 300 to be tested on the interference signals with different frequencies and amplitudes can be clearly detected.
Specifically, before the antijamming capability test of the wireless signal receiving device is performed, the antijamming testing device 100 needs to calibrate the antenna position in the antijamming testing device 100, so that the initial positions of the jamming antenna 20, the spectrum monitoring antenna 30, the transmitting device to be tested 200, and the receiving device to be tested 300 need to be calibrated respectively by the first position adjusting device 40, the second position adjusting device 50, and the third position adjusting device 60. First position control device 40 includes first slide rail, first moving motor, first locking mechanism and antenna installing support, first moving motor detachably install in on the antenna installing support, interfering antenna 20 with spectrum monitoring antenna 30 fixed mounting in on the antenna installing support, first moving motor promotes the antenna installing support along first slide rail removes, in order to realize interfering antenna 20 with spectrum monitoring antenna 30's position adjustment, first locking mechanism locates on the antenna installing support, first locking mechanism is used for the position locking of antenna installing support. Second position control device 50 includes second slide rail, second mobile motor, second locking mechanical system and equipment fixing support 51, second mobile motor detachably install in on the equipment fixing support 51, the await measuring transmitting device 200 fixed mounting in on the equipment fixing support 51, second mobile motor promotes equipment fixing support 51 follows the second slide rail removes to realize the position control of the awaiting measuring transmitting device 200, second locking mechanical system locates on the equipment fixing support 51, second locking mechanical system is used for the position locking of equipment fixing support 51. Third position control device 60 includes third slide rail, third moving motor, third locking mechanical system and equipment clamping tool 61, third moving motor detachably install in on the equipment clamping tool 61, await measuring receiving arrangement 300 fixed mounting in on the equipment clamping tool 61, third moving motor promotes equipment clamping tool 61 along the third slide rail removes to realize the position adjustment of the receiving arrangement 300 that awaits measuring, third locking mechanical system locates on the equipment clamping tool 61, third locking mechanical system is used for the position locking of equipment clamping tool 61. A swing motor is arranged below the equipment clamping jig 61 and used for controlling the equipment clamping jig 61 to swing at a preset angle so as to simulate different states of the receiving equipment 300 to be tested during use. The device clamping jig 61 is further provided with the effective signal acquisition device, and the effective signal acquisition device is used for identifying and acquiring effective signals sent by the receiving device 300 to be tested.
Specifically, the three position adjusting devices may be respectively disposed on the same or different side walls in the test shielding box 10, and usually, the interference antenna 20 is disposed between the transmitting device to be tested 200 and the receiving device to be tested 300, so that an interference signal is superimposed on a wireless signal between the transmitting device to be tested 200 and the receiving device to be tested 300, so as to fully simulate an influence of the interference signal on the wireless signal.
Specifically, the position adjusting functions of the three position adjusting devices are only used for calibrating the position of the antenna, after the antenna position calibration is completed, the antenna mounting bracket, the equipment mounting bracket and the equipment clamping jig can be locked by the three locking mechanisms respectively, the three mobile motors are dismounted, and the positions of the three position adjusting mechanisms are kept still in the process of testing the anti-interference capacity of the receiving equipment 300 to be tested.
Specifically, the swing motor can also simulate the rotation, swing and other movement modes of the to-be-tested receiving device, and simulate various use scenes as much as possible.
Further, the test shielding box 10 includes the first half box 10 and the second half box 10, the first half box 10 with pass through connecting piece swing joint between the second half box 10, the first half box 10 with the back is closed to the second half box 10 lid, the inside inclosed test cavity that forms of test shielding box 10. The test shielding box body 10 is made of wave-absorbing material to reduce the interference of electromagnetic waves inside and outside the test shielding box body 10.
Specifically, the wave-absorbing material can absorb or greatly reduce the electromagnetic wave energy received by the surface of the test shielding box 10, thereby reducing the interference of the electromagnetic wave. In engineering application, the wave-absorbing material not only has high absorption rate to electromagnetic waves in a wide frequency band, but also has the properties of light weight, temperature resistance, moisture resistance, corrosion resistance and the like, so that a closed test environment is formed in the inner space of the test shielding box body 10.
Further, the spectrum monitoring antenna 30 is disposed in parallel with the interference antenna 20, and the interference antenna 20 is disposed between the transmitting device to be tested 200 and the receiving device to be tested 300.
Specifically, the spectrum monitoring antenna 30 is disposed on one side of the interference antenna 20, and the interference signal emitted by the interference antenna 20 can be comprehensively monitored through the spectrum monitoring antenna 30.
In the above anti-interference testing apparatus 100, the testing shielding box 10 provides a closed testing environment, so that the testing equipment disposed in the testing shielding box 10 is prevented from being interfered by external electromagnetic signals. The interference-free testing device provides a closed testing environment, and simulates various use scenes of the transmitting equipment 200 to be tested and the receiving equipment 300 to be tested in the closed testing environment, so that the whole testing environment and the interference signals for testing are in a controllable state, repeated testing can be performed on the same product for many times, the performance of the product can be judged and evaluated, and the interference-free testing device can be used for analyzing and searching problems. The product of the utility model has the advantages of simple structure, easy production, low cost and convenient popularization.
It should be noted that the present invention is not limited to the above embodiments, and other changes can be made by those skilled in the art according to the spirit of the present invention, and all the changes made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides an anti-interference testing device for the test is in wireless signal transmission process, the interference killing feature of receiving terminal, its characterized in that, include inclosed test shield box and locate interfering antenna, frequency spectrum monitoring antenna, at least one effective signal acquisition equipment in the test shield box, await measuring the firing equipment, and await measuring the receiving arrangement, interfering antenna with the frequency spectrum monitoring antenna adjusts the mounted position through first position control device, await measuring the firing equipment and await measuring the receiving arrangement and adjust the mounted position through second position control device and third position control device respectively, interfering antenna is used for sending interfering signal, the frequency spectrum monitoring antenna is used for full frequency channel coverage to receive interfering signal in the test shield box.
2. The apparatus of claim 1, wherein the first position adjustment device, the second position adjustment device, and the third position adjustment device are respectively disposed on different sidewalls or a same sidewall inside the testing shielding box, so that the jammer antenna, the spectrum monitoring antenna, the transmitting device to be tested, and the receiving device to be tested move within a predetermined range.
3. The apparatus according to claim 1, wherein the first position adjusting device includes a first slide rail, a first moving motor, a first locking mechanism, and an antenna mounting bracket, the first moving motor is detachably mounted on the antenna mounting bracket, the jammer antenna and the spectrum monitoring antenna are fixedly mounted on the antenna mounting bracket, the first moving motor pushes the antenna mounting bracket to move along the first slide rail to adjust the positions of the jammer antenna and the spectrum monitoring antenna, the first locking mechanism is disposed on the antenna mounting bracket, and the first locking mechanism is used for locking the position of the antenna mounting bracket.
4. The apparatus according to claim 1, wherein the second position adjusting device includes a second slide rail, a second moving motor, a second locking mechanism, and a device mounting bracket, the second moving motor is detachably mounted on the device mounting bracket, the transmission device to be tested is fixedly mounted on the device mounting bracket, the second moving motor pushes the device mounting bracket to move along the second slide rail to adjust the position of the transmission device to be tested, the second locking mechanism is disposed on the device mounting bracket, and the second locking mechanism is used for locking the position of the device mounting bracket.
5. The apparatus according to claim 1, wherein the third position adjusting device includes a third slide rail, a third moving motor, a third locking mechanism and a device clamping fixture, the third moving motor is detachably mounted on the device clamping fixture, the receiving device to be tested is fixedly mounted on the device clamping fixture, the third moving motor pushes the device clamping fixture to move along the third slide rail, so as to adjust the position of the receiving device to be tested, the third locking mechanism is disposed on the device clamping fixture, and the third locking mechanism is used for locking the position of the device clamping fixture.
6. The apparatus of claim 5, wherein a swing motor is provided below the device-clamping fixture, the swing motor being configured to control the device-clamping fixture to swing at a predetermined angle to simulate different states of the receiving device to be tested during use.
7. The apparatus according to claim 5, wherein the device-mounting jig further includes the valid signal acquiring device, and the valid signal acquiring device is configured to identify and acquire valid signals transmitted by the receiving device to be tested.
8. The apparatus according to claim 1, wherein the testing shielding box comprises an upper half box and a lower half box, the upper half box is movably connected to the lower half box through a connecting member, and after the upper half box and the lower half box are closed, a sealed testing cavity is formed inside the testing shielding box.
9. The tamper-resistant testing apparatus of claim 1, wherein the test shielded enclosure is made of a wave-absorbing material to reduce electromagnetic interference inside and outside the test shielded enclosure.
10. The antijam testing apparatus of claim 1, wherein the spectrum monitor antenna is juxtaposed with the jammer antenna, the jammer antenna being disposed between the transmitting device under test and the receiving device under test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221647635.7U CN218240424U (en) | 2022-06-29 | 2022-06-29 | Anti-interference testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221647635.7U CN218240424U (en) | 2022-06-29 | 2022-06-29 | Anti-interference testing device |
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| CN218240424U true CN218240424U (en) | 2023-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221647635.7U Active CN218240424U (en) | 2022-06-29 | 2022-06-29 | Anti-interference testing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117647695A (en) * | 2024-01-30 | 2024-03-05 | 深圳市思翰铭科技有限公司 | Shielding efficiency test system and method for cable connector |
| CN117728906A (en) * | 2024-02-05 | 2024-03-19 | 深圳市思翰铭科技有限公司 | Anti-interference performance test system and method for active antenna |
-
2022
- 2022-06-29 CN CN202221647635.7U patent/CN218240424U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117647695A (en) * | 2024-01-30 | 2024-03-05 | 深圳市思翰铭科技有限公司 | Shielding efficiency test system and method for cable connector |
| CN117647695B (en) * | 2024-01-30 | 2024-04-16 | 深圳市思翰铭科技有限公司 | Shielding efficiency test system and method for cable connector |
| CN117728906A (en) * | 2024-02-05 | 2024-03-19 | 深圳市思翰铭科技有限公司 | Anti-interference performance test system and method for active antenna |
| CN117728906B (en) * | 2024-02-05 | 2024-04-09 | 深圳市思翰铭科技有限公司 | Anti-interference performance test system and method for active antenna |
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