CN209787186U - Automatic testing arrangement of audio equipment interference killing feature - Google Patents
Automatic testing arrangement of audio equipment interference killing feature Download PDFInfo
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- CN209787186U CN209787186U CN201921252401.0U CN201921252401U CN209787186U CN 209787186 U CN209787186 U CN 209787186U CN 201921252401 U CN201921252401 U CN 201921252401U CN 209787186 U CN209787186 U CN 209787186U
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Abstract
The utility model relates to an anti-interference test technical field, in particular to audio equipment interference killing feature's automatic testing arrangement, the inside four corners of radio frequency shielding room is provided with interfering signal source respectively, the middle part is provided with test station mechanism, radio frequency shielding room outside is provided with control and test system, the one side of radio frequency shielding room is provided with switching device, control and test system and test station mechanism connect in switching device through the cable respectively, realize the connection between control and test system and the test station mechanism, control and test system include interfering control system and audio test system, interfering control system and audio test system are connected. Compared with the prior art, the utility model discloses an audio equipment interference killing feature's automatic testing arrangement and method can not receive external disorder and uncontrollable electromagnetic environment interference during the test, has greatly promoted the accuracy and the uniformity of test result, and the test result can not receive people's subjective influence, and the objectivity is strong.
Description
[ technical field ] A method for producing a semiconductor device
the utility model relates to an anti-interference test technical field, in particular to audio equipment interference killing feature's automatic testing arrangement.
[ background of the invention ]
Along with the popularization of intelligent wearing equipment, more and more wearing equipment all have possessed wireless communication's function, and the quality of wireless communication function directly relates to the user to the experience of product and feels, and among this, the audio frequency wearing equipment that possesses wireless communication function is especially obvious. The wireless communication function of the product is improved, and on one hand, the whole radio frequency system and the antenna system are required to be optimally designed; on the other hand, when external interference occurs, the influence of the interference on the user experience can be effectively reduced. The former has a mature objective test method in the industry, and for the latter, the test of most manufacturers in the aspect of user experience is finished by artificial subjective test, so that the test efficiency is low, the accuracy is also very insufficient, and the uncertainty of the test result is high.
[ Utility model ] content
In order to overcome the above problems, the utility model provides an audio equipment interference killing feature's that can effectively solve above-mentioned problem automatic testing arrangement.
The utility model provides a technical scheme who above-mentioned technical problem provided is: the utility model provides an automatic testing arrangement of audio equipment interference killing feature, includes the radio frequency shielding room, the inside test space that forms of radio frequency shielding room, the inside four corners of radio frequency shielding room are provided with interfering signal source respectively, and the middle part is provided with test station mechanism, the radio frequency shielding room outside is provided with control and test system, and the one side of radio frequency shielding room is provided with switching device, and control and test system and test station mechanism connect in switching device through the cable respectively, realize the connection between control and test system and the test station mechanism, control and test system include interfering control system and audio test system, and interfering control system and audio test system are connected.
preferably, the switching device includes a network filter and a cable switching board, the interference control system and the network filter are respectively connected to the switch through cables, and the audio test system is connected to the cable switching board through a cable.
Preferably, the test station mechanism is connected to the cable adapter plate through a cable to realize connection with the audio test system.
Preferably, the interference signal source is connected to the network filter through a cable, so as to realize connection with the interference control system.
Preferably, the test station mechanism comprises a rotary table, the rotary table is driven to rotate by a stepping motor, the stepping motor is connected to the cable adapter plate through a cable and further connected with the audio test system, and the audio test system controls the rotary table to rotate.
Preferably, set up a plurality of artifical ears on the revolving stage, artifical ear passes through the cable and connects in the cable keysets, and then is connected with audio test system.
preferably, a communication adapter is further arranged in the radio frequency shielding chamber, and the communication adapter is connected to the cable adapter plate through a cable and further connected with the audio test system.
Preferably, the interference control system includes a main control PC, a control module is disposed in the main control PC, and the control module sets parameters to send an instruction to the interference signal source to generate a corresponding interference signal.
Compared with the prior art, the utility model discloses an automatic testing arrangement of audio equipment interference killing feature and method take place control through the interference signal to interference signal source, on the working frequency channel that needs, select different interference signal source quantity, and customize different transmitting power, transmission time slot and transmission duration isoparametric to each interference signal source, the controllable interference signal of release specification, recycle audio test system, revolving stage, communication adapter and artifical ear through the monitoring to the piece that awaits measuring, record the piece that awaits measuring test performance under the interference signal of different specifications, and produce the objective test report of result, supply the staff to look up, analysis and file;
has the following beneficial effects: 1. because the test is finished in the radio frequency shielding chamber, the test is not interfered by a disordered and uncontrollable electromagnetic environment, and the accuracy and consistency of the test result are greatly improved; 2. the artificial ear monitoring replaces the real ear, the test result is not influenced by the subjective of people, and the objectivity is better; 3. the testing process does not need to be attended by personnel, data are automatically completed and recorded, the intelligent test system is more intelligent, and the testing efficiency can be greatly improved.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of an automatic testing apparatus for the anti-interference capability of audio equipment according to the present invention;
Fig. 2 is a block diagram of the structure of an automatic testing device for the anti-interference capability of audio equipment according to the present invention;
Fig. 3 is a flowchart illustrating the operation of the automatic testing apparatus for the anti-interference capability of audio equipment according to the present invention;
fig. 4 is the utility model relates to an audio equipment interference killing feature's automatic testing arrangement's interfering signal source block diagram.
[ detailed description ] embodiments
in order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It should be noted that all directional indications (such as up, down, left, right, front, and back … …) in the embodiments of the present invention are limited to relative positions on a given view, not absolute positions.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Referring to fig. 1 to 4, the automatic testing apparatus for the anti-interference capability of audio equipment of the present invention includes a radio frequency shielding chamber 10, wherein the radio frequency shielding chamber 10 is used for isolating the external environment interference and creating a testing environment without external interference for the inside. The radio frequency shielding chamber 10 is in a cube shape and is totally closed, a testing space is formed inside the radio frequency shielding chamber, an opening and closing door is reserved for opening and closing of personnel to enter and exit, four corners inside the radio frequency shielding chamber 10 are respectively provided with an interference signal source 20, the middle part of the radio frequency shielding chamber is provided with a testing station mechanism 40, the interference signal source 20 is used for providing interference signals with controllable parameters, and the parameters include but are not limited to transmitting power, transmitting frequency, transmitting time, transmitting gaps, the number of the used antennas and the number of the interference signal sources 20. The control and test system 30 is arranged outside the radio frequency shielding chamber 10, the switching device 50 is arranged on one surface of the radio frequency shielding chamber 10, and the control and test system 30 and the test station mechanism 40 are connected to the switching device 50 through cables respectively, so that connection between the control and test system 30 and the test station mechanism 40 is realized. Because the interference signal source 20 is located inside the rf shielding chamber 10, the interference signal emitted by the interference signal source is only transmitted, reflected and consumed inside the rf shielding chamber 10, and will not leak outside the rf shielding chamber 10, and because the control and test system 30 and the test station mechanism 40 are switched by the switching device 50, the external signal can be effectively prevented from entering the rf shielding chamber 10, and additional interference is formed, so as to ensure the accuracy and consistency of the test result.
The control and test system 30 includes an interference control system and an audio test system, and the interference control system is connected to the audio test system. The switching device 50 includes a network filter and a cable switching board, the interference control system and the network filter are respectively connected to the switch through cables, and the audio test system is connected to the cable switching board through cables. The test station mechanism 40 is connected to the cable adapter plate through a cable, so that connection with the audio test system is achieved. The interference signal source 20 is connected to the network filter by a cable, and is connected to the interference control system.
The test station mechanism 40 comprises a rotary table 41, the rotary table 41 is driven to rotate by a stepping motor, the stepping motor is connected to a cable adapter plate through a cable and further connected with an audio test system, and the audio test system controls the rotary table 41 to rotate. The turntable 41 is provided with a plurality of artificial ears 42 for monitoring various test results of the piece to be tested in the test process, the artificial ears 42 are connected to the cable adapter plate through cables and further connected with the audio test system, and the audio test system controls the artificial ears 42 to monitor the recording of the results and the emission of the sweep frequency signals.
The radio frequency shielding room 10 is further provided with a communication adapter 43, and the communication adapter 43 is connected to a cable adapter plate through a cable, and further connected with an audio test system, and used for sending a frequency sweeping signal. The sweep signal of the communication adapter 43 is transmitted through its own attached antenna, and is wirelessly communicated with the object to be measured. Specifically, since the to-be-tested device works in the bluetooth frequency band, the microwave communication frequency bands used and controlled by the interference control system, the interference signal source 20 and its attached antenna, and the communication adapter 43 and its attached antenna are all bluetooth frequency bands, specifically, 2.4 to 2.485GHz ISM frequency bands.
The cable comprises a power line and a data transmission line, and is selected according to different functional requirements.
The interference control system comprises a master control PC, a control module is arranged in the master control PC, and a parameter is set by the control module to send an instruction to the interference signal source 20 to generate a corresponding interference signal.
The interference signal source 20 includes a central chip, a baseband module, a radio frequency module, a power amplifier, a matching circuit, and an antenna, and the central chip, the baseband module, the radio frequency module, the power amplifier, the matching circuit, and the antenna are connected in sequence. The interference degree of the interference signal source 20 is accurately controlled, a background instruction is sent to a central chip of the interference signal source 20 mainly by means of setting parameters of a control module of an interference control system, a frequency band and a time slot of the interference signal are set firstly, then the interference signal passes through a baseband module to a radio frequency module, then the interference signal is amplified by a power amplifier according to a set gain, and finally the interference signal which is accurately controllable is transmitted from an antenna. The key point of accurate control is to control the gain of the power amplifier, and there is a function of power level output and back calibration to confirm that the gain modification is done correctly.
during testing, a to-be-tested piece is placed on the artificial ear 42, wireless connection is established with the communication adapter 43 through a Bluetooth protocol, the interference control system is opened, interference signal related parameters of the interference signal source 20 are set, then the rotation parameters of the rotary table 41, the monitoring parameters of the artificial ear 42 and the sweep frequency signal parameters transmitted by the communication adapter 43 are set in the audio testing system, automatic testing of the anti-interference capability of the to-be-tested piece can be started, and after testing is completed, a testing result recording file can be called from the audio testing system.
An automatic testing method for the anti-interference capability of audio equipment comprises the following steps:
Step S1, before testing, the frequency band to be tested, the rotation step of the rotary table 41, the rotation time slot and the number of turns of the rotary table 41, the sweep frequency signal and the specifications of each group of interference signals are set;
Step S2, connecting the piece to be tested with the artificial ear 42, and configuring a wireless connection with the communication adapter 43;
step S3, the audio test system sends a test starting instruction to the interference control system, the interference control system respectively controls the subordinate interference signal sources 20 to send controllable interference signals according to the set interference signal specification, the audio test system simultaneously sends an instruction to the rotary table 41, and 360-degree rotation is carried out according to the set rotation step and the rotation time slot;
Step S4, the artificial ear 42 monitors and collects the audio test result at each angle, and feeds the audio test result back to the audio test system for recording;
Step S5, after one set of test is completed, the audio test system automatically issues an instruction to start the test of the second set of specification interference signals to the interference control system, and the test is performed again according to the loop of step 3 and step 4 until all the set test contents are completed.
In step S6, after the test is completed, the test result recording file may be called from the audio test system.
compared with the prior art, the utility model discloses an automatic testing arrangement and method of audio equipment interference killing feature takes place control through the interference signal to interference signal source 20, on the working frequency channel that needs, select different interference signal source 20 quantity, and customize different transmitting power, transmission time slot and transmission duration isoparametric to each interference signal source 20, the controllable interference signal of release specification, recycle audio test system, revolving stage 41, communication adapter 43 and artifical ear 42 through the monitoring to the piece that awaits measuring, record the piece that awaits measuring test performance under the different specification interference signal, and generate the objective test report of result, supply the staff to look up, analysis and file;
Has the following beneficial effects: 1. because the test is finished in the radio frequency shielding chamber 10, the test is not interfered by external disorder and uncontrollable electromagnetic environment, and the accuracy and consistency of test results are greatly improved; 2. the artificial ear 42 is used for monitoring instead of a real ear, so that the test result is not influenced by the subjective effect of a person and has objectivity; 3. the testing process does not need to be attended by personnel, data are automatically completed and recorded, the intelligent test system is more intelligent, and the testing efficiency can be greatly improved.
The above description is only for the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications made within the spirit of the present invention, equivalent replacements and improvements should be included in the scope of the present invention.
Claims (8)
1. An automatic testing device for the anti-interference capability of audio equipment is characterized by comprising a radio frequency shielding chamber, wherein a testing space is formed in the radio frequency shielding chamber, four corners in the radio frequency shielding chamber are respectively provided with an interference signal source, the middle part of the radio frequency shielding chamber is provided with a testing station mechanism, a control and testing system is arranged outside the radio frequency shielding chamber, one surface of the radio frequency shielding chamber is provided with a switching device, and the control and testing system and the testing station mechanism are respectively connected with the switching device through cables so as to realize the connection between the control and testing system and the testing station mechanism;
The control and test system comprises an interference control system and an audio test system, and the interference control system is connected with the audio test system.
2. The apparatus of claim 1, wherein the switching device comprises a network filter and a cable switch board, the interference control system and the network filter are respectively connected to the switch through cables, and the audio testing system is connected to the cable switch board through cables.
3. The automated audio device immunity testing apparatus of claim 2, wherein the test station mechanism is connected to the cable adapter plate via a cable to connect to the audio testing system.
4. The apparatus for automatically testing the antijamming capability of audio equipment according to claim 2, wherein the interference signal source is connected to the network filter through a cable to realize connection with the interference control system.
5. The apparatus according to claim 2, wherein the testing station mechanism comprises a turntable, the turntable is driven by a stepping motor to rotate, the stepping motor is connected to the cable adapter plate through a cable and further connected to the audio testing system, and the audio testing system controls the turntable to rotate.
6. The apparatus according to claim 5, wherein the turntable is provided with a plurality of artificial ears, and the artificial ears are connected to the cable adapter plate through cables and further connected to the audio testing system.
7. The apparatus for automatically testing the antijamming capability of audio equipment according to claim 2, wherein a communication adapter is further disposed in the radio frequency shielding chamber, and the communication adapter is connected to the cable adapter plate through a cable, so as to be connected to the audio test system.
8. The apparatus according to claim 1, wherein the interference control system comprises a main control PC, and a control module is disposed in the main control PC, and the control module sets parameters to send an instruction to the interference signal source to generate a corresponding interference signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201921252401.0U CN209787186U (en) | 2019-08-02 | 2019-08-02 | Automatic testing arrangement of audio equipment interference killing feature |
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| CN201921252401.0U CN209787186U (en) | 2019-08-02 | 2019-08-02 | Automatic testing arrangement of audio equipment interference killing feature |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110365424A (en) * | 2019-08-02 | 2019-10-22 | 深圳市思讯通信技术有限公司 | A kind of automatic test device and method of audio frequency apparatus anti-interference ability |
| CN111865449A (en) * | 2020-07-20 | 2020-10-30 | 深圳市思讯通信技术有限公司 | System and method for testing omnidirectional connection performance of Bluetooth audio equipment |
| CN112039607A (en) * | 2020-08-24 | 2020-12-04 | 深圳市亿联无限科技有限公司 | WiFi product performance testing equipment and method |
| CN112702725A (en) * | 2020-11-27 | 2021-04-23 | 深圳市思讯通信技术有限公司 | Actual experience sense data test system of wearable audio equipment of wireless bluetooth |
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2019
- 2019-08-02 CN CN201921252401.0U patent/CN209787186U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110365424A (en) * | 2019-08-02 | 2019-10-22 | 深圳市思讯通信技术有限公司 | A kind of automatic test device and method of audio frequency apparatus anti-interference ability |
| CN111865449A (en) * | 2020-07-20 | 2020-10-30 | 深圳市思讯通信技术有限公司 | System and method for testing omnidirectional connection performance of Bluetooth audio equipment |
| WO2022016591A1 (en) * | 2020-07-20 | 2022-01-27 | 深圳市思讯通信技术有限公司 | System and method for testing total connection performance of bluetooth audio device |
| CN111865449B (en) * | 2020-07-20 | 2023-03-31 | 深圳市思讯通信技术有限公司 | Omnidirectional connection performance test method for Bluetooth audio equipment |
| CN112039607A (en) * | 2020-08-24 | 2020-12-04 | 深圳市亿联无限科技有限公司 | WiFi product performance testing equipment and method |
| CN112702725A (en) * | 2020-11-27 | 2021-04-23 | 深圳市思讯通信技术有限公司 | Actual experience sense data test system of wearable audio equipment of wireless bluetooth |
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