Intelligent test system for high-power speakers

Abstract

The present invention relates to the technical field of speaker testing, and in particular, to an intelligent testing system for high-power speakers. The test bench includes a test bench, which includes a bottom plate, a supporting body, a plug-in slot, a clamping body, a test environment, and a soundproof cover, which includes a top plate, a slot No. 1, a sponge No. 1, a side panel, a slot No. 2, a sponge No. 2, and a clamping slot; a fixed body, which includes a connecting rod, a plug-in body, and a fixing ring; a sound receiving body, which includes a connecting plate, a connecting plate connected to a rod No. 1, a rod No. 1 connected to a ring, and a sound collector connected to the ring. The present invention mainly proposes an intelligent testing system for testing the audio playback quality of a high-power speaker.

Description

Technical Field

[0001] The invention relates to the technical field of speaker testing, in particular to an intelligent testing system for a high-power speaker. Background Art

[0002] A speaker refers to a device that can convert audio signals into sound. In layman's terms, it refers to a power amplifier built into the speaker main box or subwoofer box. The audio signal is amplified and then played back by the speaker itself to make the sound louder. The speaker is the terminal of the entire audio system. Its function is to convert audio electrical energy into corresponding sound energy and radiate it into space. It is an extremely important component of the audio system and is responsible for converting electrical signals into sound signals for direct human hearing.

[0003] Power determines the maximum sound intensity that a speaker can produce. High-power speakers can have a strong impact when playing music. However, the disadvantage of high-power speakers is that the played audio will be distorted, with a large error from the original audio, and the sound playback quality is poor. There is currently no industry standard for speaker testing, so an intelligent testing system for high-power speakers is needed. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent testing system for high-power speakers to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides an intelligent test system for high-power speakers, including a test device, the test device including a test bench, the test bench including a bottom plate, a supporting body is provided in the middle of the top upper surface of the bottom plate, plug-in slots are symmetrically provided on the side surface of the supporting body, a card body is provided at the edge of the top upper surface of the bottom plate, a test environment is provided on the top of the card body, and the test environment at least includes:

[0006] A muffler, the muffler comprising a top plate, the top plate is provided with a No. 1 groove, the No. 1 groove is provided with a No. 1 sponge, the bottom of the top plate is provided with a side panel, the surface of the side panel is provided with a No. 2 groove, the No. 2 groove is provided with a No. 2 sponge, the bottom of the side panel is provided with a snap-in groove, the snap-in groove is snap-fitted with the snap-in body;

[0007] A fixed body, the fixed body comprising a connecting rod, a plug-in body is provided at one end of the bottom of the connecting rod, the plug-in body is plugged and matched with the plug-in slot, and a fixing ring is provided at one end of the top of the plug-in body;

[0008] The sound receiving body comprises a connecting plate connected to the supporting body, one end of the connecting plate is connected to a No. 1 rod, the top of the No. 1 rod is connected to a sleeve ring, and the sleeve ring is sleeved with a sound collector.

[0009] As a further improvement of the technical solution, a layer of fiber blanket is provided on the top surface of the supporting body and the contact surface between the fixing ring and the sound box.

[0010] As a further improvement of the technical solution, a windshield is sleeved on the top of the sound collector.

[0011] As a further improvement of the technical solution, a clamping ring is provided on the bottom surface of the supporting body, a circular opening is opened at one end of the connecting plate away from the No. 1 rod, and the clamping ring is located in the circular opening and is rotatably connected to the connecting plate.

[0012] As a further improvement of the technical solution, a sliding groove is provided on the surface of the connecting plate, a sliding plate is provided at the bottom of the No. 1 rod, the sliding plate is slidably connected to the sliding groove, the No. 2 rod is plugged into the top of the No. 1 rod, and the No. 2 rod is connected to the ring.

[0013] As a further improvement of the technical solution, the second rod is rotatably connected to the collar.

[0014] As a further improvement of the technical solution, a test module is included, which includes a sound collection module, an audio analyzer, a data comparison module, a recording module, and a control module. The sound collection module includes the sound collector, the sound collection module is connected to the audio analyzer, the audio analyzer is connected to the recording module, the recording module is connected to the data comparison module, and the data comparison module is bidirectionally connected to the control module.

[0015] As a further improvement of the technical solution, the control module adopts an APE format audio file.

[0016] As a further improvement of the technical solution, the modules of the test system communicate with each other via RS485.

[0017] As a further improvement of the technical solution, the control module is connected to a high-power speaker via a wire.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the intelligent testing system of the high-power speaker, a fiber blanket can be provided to buffer and eliminate the vibration generated when the speaker plays audio, and a windshield can be provided to reduce the influence of air flow on the audio collected by the sound collector.

[0020] 2. In the intelligent testing system of the high-power speaker, the rotatably connected snap ring and connecting plate are used to facilitate changing the horizontal position of the sound collector, and the rotatably connected No. 2 rod and sleeve ring are used to facilitate changing the inclination angle of the sound collector, thereby facilitating the collection of audio.

[0021] 3. In the intelligent test system of the high-power speaker, the wired connection with the high-power speaker can ensure that the speaker can receive the complete audio file, avoid test errors from the source, and improve the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the test bench of the present invention;

[0024] Figure 3 It is a schematic diagram of the test environment structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the muffler cover of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the fixed body of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the sound receiving body of the present invention;

[0028] Figure 7 It is a schematic diagram of the principle of the test system of the present invention.

[0029] The meaning of each number in the figure is:

[0030] 1. Test bench;

[0031] 11. Bottom plate; 12. Supporting body; 13. Snap-on body; 14. Insertion slot; 15. Snap-on ring;

[0032] 2. Test environment;

[0033] 21. Noise-absorbing cover;

[0034] 211, top plate; 212, slot No. 1; 213, sponge No. 1; 214, side panel; 215, slot No. 2; 216, sponge No. 2; 217, snap-in slot;

[0035] 22. Fixed body;

[0036] 221, connecting rod; 222, plug-in body; 223, fixing ring;

[0037] 23. Sound receiving body;

[0038] 231. Connecting plate; 232. Rod No. 1; 233. Sound collector; 234. Sliding groove; 235. Sliding plate; 236. Rod No. 2; 237. Ring; 238. Wind shield. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] Example 1

[0042] See also Figure 1-Figure 6 As shown, the purpose of this embodiment is to provide an intelligent test system for high-power speakers, including a test device, the test device including a test bench 1, the test bench 1 including a bottom plate 11, the bottom plate 11 is a cylinder, a supporting body 12 is provided in the middle of the top upper surface of the bottom plate 11, the supporting body 12 is a "T"-shaped cylinder, the side surface of the supporting body 12 is symmetrically provided with a plug-in groove 14, the plug-in groove 14 is a square structure groove, a clamping body 13 is provided on the edge of the top upper surface of the bottom plate 11, the clamping body 13 is a semi-annular protrusion, and a test environment 2 is provided on the top of the clamping body 13, and the test environment 2 at least includes:

[0043] The muffler 21 includes a top plate 211, which is a cylinder. The top plate 211 is provided with a No. 1 groove 212, in which a No. 1 sponge 213 is arranged. A side panel 214 is provided at the bottom of the top plate 211. The side panel 214 is a toroidal structure. A No. 2 groove 215 is provided on the surface of the side panel 214. A No. 2 sponge 216 is arranged in the No. 2 groove 215. A snap-fit ​​groove 217 is provided at the bottom of the side panel 214. The snap-fit ​​groove 217 is a semi-annular groove. The snap-fit ​​groove 217 is snap-fitted with the snap-fit ​​body 13.

[0044] The fixed body 22 includes a connecting rod 221, which is a "C"-shaped structure. A plug-in body 222 is provided at one end of the bottom of the connecting rod 221. The plug-in body 222 is a cube. The plug-in body 222 is plugged into the plug-in slot 14. A fixing ring 223 is provided at one end of the top of the plug-in body 222. The fixing ring 223 is a cubic plate with an arc groove on one side.

[0045] The sound receiving body 23 includes a connecting plate 231 connected to the supporting body 12 , one end of the connecting plate 231 is connected to a rod 232 , a top of the rod 232 is connected to a ring 237 , and the ring 237 is sleeved with a sound collector 233 .

[0046] The sound collector 233 of this embodiment preferably adopts PM422, which has a microphone metal cover, a mute touch & LED indicator light, a microphone gain control, and a USB interface. The cardioid design of PM422 is conducive to the collection of sound. Its frequency response is 20 to 20000Hz in the test environment, and its sensitivity is -47dB to 29dB, ±3dB, (0dB=1V / Pa at 1KHz); the sampling depth is 24bit; and the sampling rate is as high as 192KHz.

[0047] When this embodiment is used, the high-power speaker to be tested is placed in the middle of the top of the supporting body 12, and the plug-in body 222 is moved in the plug-in slot 14 so that the connecting rod 221 drives the fixing ring 223 to approach and fix the speaker. After the wind shield 238 is put on the top of the wind shield 238, the silencer 21 is placed on the top of the test bench 1 so that the speaker is in a closed state to ensure the accuracy of the test. When placing it, the snap-in body 13 can be snapped into the snap-in slot 217. During the test, the No. 1 sponge 213 and the No. 2 sponge 216 can effectively eliminate environmental noise, which is beneficial for the sound collector 233 to collect the sound played by the speaker.

[0048] To further cushion the vibration, a layer of fiber blanket is provided on the top surface of the supporting body 12 and the contact surface between the fixing ring 223 and the speaker. The fiber blanket can cushion and eliminate the vibration generated when the speaker plays audio.

[0049] In order to further reduce the influence of air, a wind shield 238 is sleeved on the top of the sound collector 233. The wind shield 238 can reduce the influence of air flow on the audio collected by the sound collector 233.

[0050] Example 2

[0051] In order to facilitate the adjustment of the position of the sound collector 233 to better measure the speaker while ensuring that the audio test can be performed on the high-power speaker, this embodiment makes improvements based on Embodiment 1:

[0052] Among them, a clamping ring 15 is provided on the bottom surface of the supporting body 12, and the clamping ring 15 is an "H"-shaped cylinder. A circular opening is opened at the end of the connecting plate 231 away from the No. 1 rod 232. The clamping ring 15 is located in the circular opening and is rotatably connected to the connecting plate 231. The rotatably connected clamping ring 15 and the connecting plate 231 are helpful to change the horizontal position of the sound collector 233, which is convenient for collecting the audio played by the speaker.

[0053] Furthermore, a sliding groove 234 is provided on the surface of the connecting plate 231, and the sliding groove 234 is a square hole. A sliding plate 235 is provided at the bottom of the No. 1 rod 232, and the sliding plate 235 is an "H"-shaped structural plate. The sliding plate 235 is slidably connected to the sliding groove 234. A No. 2 rod 236 is plugged into the top of the No. 1 rod 232, and the No. 2 rod 236 is connected to a ring 237. The distance between the sound collector 233 and the speaker box can be adjusted by means of the sliding groove 234, the sliding plate 235, and the plug-in No. 1 rod 232 and the No. 2 rod 236.

[0054] Furthermore, the second rod 236 is rotatably connected to the sleeve ring 237. The rotatably connected second rod 236 and sleeve ring 237 are helpful in changing the tilt angle of the sound collector 233, thereby facilitating the collection of audio.

[0055] Example 3

[0056] See also Figure 7 As shown, the purpose of this embodiment is to provide an intelligent test system for a high-power speaker, including a test module, the test module including a sound collection module, an audio analyzer, a data comparison module, a recording module, and a control module, the sound collection module including the sound collector 233, the sound collection module is connected to the audio analyzer, the audio analyzer is connected to the recording module, the recording module is connected to the data comparison module, and the data comparison module is bidirectionally connected to the control module.

[0057] Furthermore, the control module uses an APE format audio file, which has good sound quality and is beneficial to the testing of high-power speakers.

[0058] Furthermore, the modules of the test system communicate with each other via RS485, which has good anti-interference performance. Communication via RS485 can avoid data errors.

[0059] Furthermore, the control module is connected to a high-power speaker via a wired connection, and the wired connection can ensure that the speaker can receive the complete audio file.

[0060] When this embodiment is implemented, the control module selects an audio file in APE format and sends it to the high-power speaker and the data comparison module. The high-power speaker converts the received audio file from a digital signal to an analog signal and plays it through the speaker system. During playback, the speaker system of the speaker uses maximum power. The sound collection module is responsible for collecting the sound played by the speaker and transmitting the collected sound signal to the audio analyzer, reversing the analog signal into a digital signal, and transmitting the audio digital signal to the recording module for storage. After the audio file of the speaker is played, the recording module sends the stored audio information to the data comparison module. The data comparison module compares the collected and played sound signal with the original audio file, thereby testing the playback quality of the speaker.

[0061] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. Intelligent testing system for high-power speakers, characterized by: The test device comprises a test bench (1), the test bench (1) comprises a bottom plate (11), a supporting body (12) is provided in the middle of the top upper surface of the bottom plate (11), a plug-in slot (14) is symmetrically provided on the side surface of the supporting body (12), a clamping body (13) is provided at the edge of the top upper surface of the bottom plate (11), a test environment (2) is provided on the top of the clamping body (13), and the test environment (2) at least comprises: A muffler cover (21), the muffler cover (21) comprising a top plate (211), the top plate (211) being provided with a first groove (212), a first sponge (213) being arranged in the first groove (212), a side panel (214) being provided at the bottom of the top plate (211), a second groove (215) being provided on the surface of the side panel (214), a second sponge (216) being arranged in the second groove (215), a snap-fitting groove (217) being provided at the bottom of the side panel (214), the snap-fitting groove (217) being snap-fitted with the snap-fitting body (13); A fixed body (22), the fixed body (22) comprising a connecting rod (221), a plug-in body (222) being provided at one end of the bottom of the connecting rod (221), the plug-in body (222) being plug-fitted with the plug-in slot (14), and a fixing ring (223) being provided at one end of the top of the plug-in body (222); A sound collecting body (23), the sound collecting body (23) comprising a connecting plate (231) connected to the supporting body (12), one end of the connecting plate (231) being connected to a No. 1 rod (232), a top of the No. 1 rod (232) being connected to a sleeve (237), and the sleeve (237) being sleeved with a sound collector (233).

2. The intelligent testing system for high-power speakers according to claim 1, characterized in that: A layer of fiber blanket is provided on the top surface of the supporting body (12) and the contact surface between the fixing ring (223) and the sound box.

3. The intelligent testing system for high-power speakers according to claim 1, characterized in that: The top of the sound collector (233) is sleeved with a windshield (238).

4. The intelligent testing system for high-power speakers according to claim 1, characterized in that: A clamping ring (15) is provided on the bottom surface of the supporting body (12), a circular opening is provided at one end of the connecting plate (231) away from the No. 1 rod (232), and the clamping ring (15) is located in the circular opening and is rotatably connected to the connecting plate (231).

5. The intelligent testing system for high-power speakers according to claim 1 is characterized in that: A sliding groove (234) is provided on the surface of the connecting plate (231); a sliding plate (235) is provided at the bottom of the No. 1 rod (232); the sliding plate (235) is slidably connected to the sliding groove (234); a No. 2 rod (236) is plugged into the top of the No. 1 rod (232); and the No. 2 rod (236) is connected to the collar (237).

6. The intelligent testing system for high-power speakers according to claim 5, characterized in that: The second rod (236) is rotatably connected to the sleeve ring (237).

7. The intelligent testing system for high-power speakers according to claim 1 is characterized in that: The invention comprises a test module, wherein the test module comprises a sound collection module, an audio analyzer, a data comparison module, a recording module, and a control module. The sound collection module comprises the sound collector (233), the sound collection module is connected to the audio analyzer, the audio analyzer is connected to the recording module, the recording module is connected to the data comparison module, and the data comparison module is bidirectionally connected to the control module.

8. The intelligent testing system for high-power speakers according to claim 7, characterized in that: The control module uses an APE format audio file.

9. The intelligent testing system for high-power speakers according to claim 7, characterized in that: The modules of the test system communicate with each other via RS485.

10. The intelligent testing system for high-power speakers according to claim 7, characterized in that: The control module is connected to a high-power speaker via wires.

Images