CN214843606U - High-performance sound level meter based on ANDROID operating system - Google Patents
High-performance sound level meter based on ANDROID operating system Download PDFInfo
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- CN214843606U CN214843606U CN202023014913.9U CN202023014913U CN214843606U CN 214843606 U CN214843606 U CN 214843606U CN 202023014913 U CN202023014913 U CN 202023014913U CN 214843606 U CN214843606 U CN 214843606U
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Abstract
The utility model discloses a high performance sound level meter based on ANDROID operating system, which comprises a housin, the microphone is installed at the top of casing, the inside of casing is provided with ANDROID mainboard, power module and simulation collection board, the outside fixed mounting of casing has touch-sensitive screen and button, microphone and simulation collection board electric connection, board, power module, touch-sensitive screen and button all with ANDROID mainboard electric connection are gathered in the simulation. The utility model provides a limited technical problem of original sound level meter operation function, the utility model discloses a be equipped with the ANDROID mainboard in the sound level meter, can handle the data collection of a plurality of passageways simultaneously, application scope is wide, and has integrateed the ANDROID system, is convenient for add the function.
Description
Technical Field
The utility model relates to a noise test equipment technical field especially relates to a high performance sound level meter based on ANDROID operating system.
Background
With the continuous improvement of living standard of people, the noise hazard is more and more emphasized. The sound level meter is the main equipment for measuring noise, and has the characteristics of small volume, convenient carrying and high measurement precision. The existing sound level meter mainly uses a single chip as a logic processor and is matched with a DSP (digital signal processor) to perform operation processing, so that the noise calculation of 1 channel is realized, and the operation function is limited.
For example, chinese patent document CN109540281A discloses "a digital display sound level meter", including casing, display, control panel assembly and sound wave amplifier, housing face is equipped with the display, the display lower part is equipped with control button, casing upper portion is equipped with the connecting block, connecting block upper portion is equipped with the fixing base, the inside motor that is equipped with of connecting block, motor upper portion is equipped with the telescopic link, telescopic link upper portion is equipped with sound wave amplifier, the sound wave amplifier outside is equipped with a sound receiving section of thick bamboo, the connecting wire lower part is equipped with sound wave receiver, sound wave receiver lower part is equipped with sound wave processor, sound wave processor lower part is equipped with control panel assembly. The above patent has the disadvantages that the noise calculation of 1 channel can be realized, and the operation function is limited.
Disclosure of Invention
The utility model mainly solves the technical problem that the prior sound level meter has limited operation function; the ANDROID operation system-based high-performance sound level meter is provided, an ANDROID main board is arranged in the sound level meter, collected data of a plurality of channels can be processed simultaneously, and the application range is wide.
The above technical problem of the present invention can be solved by the following technical solutions: the utility model discloses a casing, the microphone is installed at the top of casing, the inside of casing is provided with ANDROID mainboard, power module and simulation collection board, the outside fixed mounting of casing has touch-sensitive screen and button, the microphone is gathered board electric connection with the simulation, board, power module, touch-sensitive screen and button are all gathered with ANDROID mainboard electric connection in the simulation.
The utility model discloses be equipped with the ANDROID mainboard in the sound level meter, can handle the data collection of a plurality of passageways simultaneously, and integrated ANDROID system, be convenient for add the function. The touch-sensitive screen is used for showing test information and can be right the utility model discloses all functions of sound level meter are operated, and the button is used for the start and the shutdown of sound level meter.
Preferably, the analog acquisition board comprises an operational amplifier, an analog-to-digital conversion module, a control module and a circuit board, wherein the operational amplifier, the analog-to-digital conversion module and the control module are all arranged on the circuit board, the operational amplifier, the analog-to-digital conversion module and the control module are electrically connected in sequence, the operational amplifier is electrically connected with the microphone, and the control module is electrically connected with the ANDROID mainboard.
The operational amplifier amplifies an analog signal collected from the microphone and transmits the amplified analog signal to the analog-to-digital conversion module, the analog-to-digital conversion module converts the analog signal into a digital signal and transmits the digital signal to the control module, the ANDROID main board is automatically awakened at each set time interval, data are read from the control module, calculation and storage are carried out, and measurement power consumption of the sound level meter is reduced.
Preferably, the circuit board is provided with a mounting opening, the bottom edge of the mounting opening is flush with the bottom edge of the interface, and the insertion parts of the operational amplifier, the analog-to-digital conversion module and the control module are fixedly connected with the interface through interface fixing devices.
The operational amplifier, the analog-digital conversion module and the control module are installed on the circuit board through the interface fixing device, when the operational amplifier, the analog-digital conversion module and the control module break down, the module which breaks down can be rapidly detached and replaced by a new module which does not break down, the whole circuit board does not need to be replaced, and the maintenance cost is reduced.
Preferably, the interface fixing device comprises a fixing frame, the fixing frame comprises a bottom plate and two side plates connected with opposite edges of the cover plate, the fixing frame is connected with a circuit board in a clamping manner, a first through hole is formed in the position, close to the bottom edge of the mounting opening, of the side plate, a magnetic locking ring is concentric with the through hole and is fixedly installed on the circuit board close to the side plate, one end of a locking rod penetrates through the magnetic locking ring and the through hole and stretches into the mounting opening, the other end of the locking rod is fixedly connected with a metal plate, a spring and a compression ring are arranged between the metal plate and the magnetic locking ring, the spring and the compression ring are sleeved outside the locking rod, the compression ring is arranged between the metal plate and the spring and is connected with an L-shaped connecting rod, a second through hole is formed in the position, far away from the bottom edge of the mounting opening, of the side plate, a magnet is arranged at one end of the L-shaped connecting rod and penetrates through hole to stretch into the mounting opening, and a semi-locking ring is arranged at the other end of the locking rod, the two semi-locking rings are combined into a locking ring, the inner diameter of the locking ring is equal to the outer diameter of the insertion part, and magnetic blocks with the magnetism opposite to that of the magnet are arranged on two sides of the bottom ends of the operational amplifier, the analog-to-digital conversion module and the control module.
Taking the operational amplifier, the analog-to-digital conversion module and the analog-to-digital conversion module in the control module as an example, the analog-to-digital conversion module is inserted from the opening of the fixing frame, and the insertion position of the analog-to-digital conversion module is positioned between the two side plates and slides towards the direction close to the socket until the insertion part of the analog-to-digital conversion module is inserted into the socket. The magnet that the magnetic path of analog-to-digital conversion module bottom both sides and L type connecting rod stretched into one of installing the opening and served and set up this moment is located same straight line, because the magnetism of magnet and magnetic path is opposite, therefore L type connecting rod receives repulsive force, move to the direction of keeping away from the curb plate, based on lever principle, the other end of L type connecting rod drives the direction that the compression ring moved to be close to the curb plate, and then compressed the spring, the elastic pressure of compressed spring to the metal sheet has been weakened, make the metal sheet be close to the magnetic locking ring under the effect of the magnetic attraction of magnetic locking ring, and then drive half lock ring and be close to and laminate grafting portion and interface's combination department, two half lock rings close and make up into the catch, the combination of grafting portion and interface has further been consolidated, prevent that analog-to-digital conversion module from receiving external force and leading to can't well contact with the circuit board.
When the analog-to-digital conversion module needs to be taken down from the circuit board, only the bottom two sides of the analog-to-digital conversion module need to be clamped by the clamping tool, the mutual repulsion between the magnet and the magnetic block is blocked by the clamping tool at the moment, therefore, the L-shaped connecting rod moves towards the direction close to the side plate, based on the lever principle, the other end of the L-shaped connecting rod drives the compression ring to move towards the direction far away from the side plate, the elastic pressure of the spring to the metal plate is recovered, the magnetic attraction of the magnetic locking ring to the second metal plate is overcome, the metal plate moves towards the direction far away from the magnetic locking ring, and then the half locking ring is driven to move away from the combination part of the plugging part and the plugging port, next, the plugging part of the analog-to-digital conversion module can be separated from the plugging port, and then the analog-to-digital conversion module is taken out from the opening of the fixing frame.
Preferably, one end of the side plate, which is far away from the bottom edge of the mounting opening, is obliquely extended and provided with a guide plate.
The guide plate is convenient for inserting the operational amplifier, the analog-to-digital conversion module and the plug-in part of the control module into the interface fixing device, and plays a role in guiding.
Preferably, the outer side of the side edge is provided with a clamping hook, and the clamping hook penetrates through a notch arranged at the edge of the mounting opening to be clamped with the circuit board.
The utility model has the advantages that: 1) the ANDROID mainboard is arranged in the sound level meter, can process the acquired data of a plurality of channels at the same time, has wide application range, integrates an ANDROID system and is convenient for adding functions; 2) the ANDROID main board is automatically awakened at each interval set time, and data are read from the control module for calculation and storage, so that the measurement power consumption of the sound level meter is reduced; 3) the operational amplifier, the analog-digital conversion module and the control module are installed on the circuit board through the interface fixing device, when the operational amplifier, the analog-digital conversion module and the control module break down, the module which breaks down can be rapidly detached and replaced by a new module which does not break down, the whole circuit board does not need to be replaced, and the maintenance cost is reduced.
Drawings
Fig. 1 is a schematic diagram of an external structure of the present invention.
Fig. 2 is a block diagram of the present invention.
Fig. 3 is a schematic structural diagram of the interface fixing device of the present invention.
Fig. 4 is a schematic view of a connecting structure of the lock rod, the half-lock ring and the metal plate of the present invention.
In the figure, the display device comprises a shell 1, a shell 2, a microphone 3, a touch screen 4, keys 5, an ANDROID mainboard 6, a power module 7, an analog acquisition board 71, an operational amplifier 72, an analog-to-digital conversion module 73, a control module 74, a circuit board 8, a socket 9, a socket part 10, a fixing frame 101, a bottom board 102, a side board 11, a hook 12, a guide board 13, a first through hole 14, a magnetic locking ring screen 15, a locking rod 16, a metal board 17, a spring 18, a compression ring 19, an L-shaped connecting rod 20, a second through hole 21, a magnet 22, a half locking ring 23 and a magnetic block.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): the high-performance sound level meter based on the ANDROID operating system of the embodiment, as shown in fig. 1-2, includes a housing 1, a microphone 2 is installed at the top of the housing, a human-computer interaction module is fixedly installed at the outer side of the housing, the human-computer interaction module includes a touch screen 3 and a key 4, the touch screen is used for displaying test information and operating all functions of the sound level meter of the embodiment, the key is used for starting and shutting down the sound level meter, an ANDROID main board 5, a power supply module 6 and an analog acquisition board 7 are arranged inside the housing, the analog acquisition board includes an operational amplifier 71 and an analog-to-digital conversion module 72, the control module 73 and the circuit board 74, the operational amplifier is electrically connected with the microphone, the operational amplifier, the analog-to-digital conversion module and the control module are electrically connected in sequence, the control module is electrically connected with the ANDROID mainboard, and the power module, the touch screen and the keys are electrically connected with the ANDROID mainboard.
The operational amplifier amplifies an analog signal collected from the microphone and transmits the amplified analog signal to the analog-to-digital conversion module, the analog-to-digital conversion module converts the analog signal into a digital signal and transmits the digital signal to the control module, the ANDROID main board is automatically awakened at each set time interval, data are read from the control module, calculation and storage are carried out, and measurement power consumption of the sound level meter is reduced.
The utility model discloses be equipped with the ANDROID mainboard in the sound level meter, the data collection of a plurality of passageways can be handled simultaneously, application scope is wide, and has just integrated the ANDROID system, is convenient for add the function.
As shown in fig. 2 to 3, the circuit board is provided with a mounting opening, the bottom edge of the mounting opening is flush with the bottom edge of the socket 8, and the plugging portion 9 of the operational amplifier, the analog-to-digital conversion module and the control module is fixedly connected with the socket through the interface fixing device. The interface fixing device comprises a fixing frame 10, the fixing frame comprises a bottom plate 101 and two side plates 102 connected with opposite edges of the cover plate, the outer sides of the side edges are provided with hooks 11, the hooks pass through gaps arranged at the edges of the mounting openings and are clamped with a circuit board, one ends of the side plates far away from the bottom edges of the mounting openings are obliquely and extendedly provided with guide plates 12, first through holes 13 are processed at the bottom edges of the side plates close to the mounting openings, magnetic locking rings 14 are concentric with the through holes and are fixedly arranged on the circuit board close to the side plates, one ends of locking rods 15 penetrate through the magnetic locking rings and the through holes and extend into the fixing frame, the other ends of the locking rods are fixedly connected with a metal plate 16, springs 17 and compression rings 18 are arranged between the metal plate and the magnetic locking rings, the springs and the compression rings are sleeved at the outer sides of the locking rods, the compression rings are arranged between the metal plate and the springs, the compression rings are connected with L-shaped connecting rods 19, second through holes 20 are processed at the bottom edges of the mounting openings far away from the side plates, one end of the L-shaped connecting rod is provided with a magnet 21 and penetrates through the second through hole to extend into the fixing frame, the other end of the locking rod is provided with a semi-locking ring 22, the two semi-locking rings are combined to form a locking ring, the inner diameter of the locking ring is equal to the outer diameter of the inserting part, and magnetic blocks 23 with the magnetism opposite to that of the magnet are arranged on two sides of the bottom ends of the operational amplifier, the analog-digital conversion module and the control module.
Taking the operational amplifier, the analog-to-digital conversion module and the analog-to-digital conversion module in the control module as an example, the analog-to-digital conversion module is inserted from the opening of the fixing frame, and the insertion position of the analog-to-digital conversion module is positioned between the two side plates and slides towards the direction close to the socket until the insertion part of the analog-to-digital conversion module is inserted into the socket. The magnet that the magnetic path of analog-to-digital conversion module bottom both sides and L type connecting rod stretched into one of installing the opening and served and set up this moment is located same straight line, because the magnetism of magnet and magnetic path is opposite, therefore L type connecting rod receives repulsive force, move to the direction of keeping away from the curb plate, based on lever principle, the other end of L type connecting rod drives the direction that the compression ring moved to be close to the curb plate, and then compressed the spring, the elastic pressure of compressed spring to the metal sheet has been weakened, make the metal sheet be close to the magnetic locking ring under the effect of the magnetic attraction of magnetic locking ring, and then drive half lock ring and be close to and laminate grafting portion and interface's combination department, two half lock rings close and make up into the catch, the combination of grafting portion and interface has further been consolidated, prevent that analog-to-digital conversion module from receiving external force and leading to can't well contact with the circuit board.
When the analog-to-digital conversion module needs to be taken down from the circuit board, only the bottom two sides of the analog-to-digital conversion module need to be clamped by the clamping tool, the mutual repulsion between the magnet and the magnetic block is blocked by the clamping tool at the moment, therefore, the L-shaped connecting rod moves towards the direction close to the side plate, based on the lever principle, the other end of the L-shaped connecting rod drives the compression ring to move towards the direction far away from the side plate, the elastic pressure of the spring to the metal plate is recovered, the magnetic attraction of the magnetic locking ring to the second metal plate is overcome, the metal plate moves towards the direction far away from the magnetic locking ring, and then the half locking ring is driven to move away from the combination part of the plugging part and the plugging port, next, the plugging part of the analog-to-digital conversion module can be separated from the plugging port, and then the analog-to-digital conversion module is taken out from the opening of the fixing frame.
Claims (6)
1. The utility model provides a high performance sound level meter based on ANDROID operating system, a serial communication port, which comprises a housin, the microphone is installed at the top of casing, the inside of casing is provided with ANDROID mainboard, power module and simulation and gathers the board, the outside fixed mounting of casing has touch-sensitive screen and button, microphone and simulation gather board electric connection, board, power module, touch-sensitive screen and button all with ANDROID mainboard electric connection are gathered in the simulation.
2. The ANDROID operating system-based high-performance sound level meter according to claim 1, wherein the analog acquisition board comprises an operational amplifier, an analog-to-digital conversion module, a control module and a circuit board, the operational amplifier, the analog-to-digital conversion module and the control module are all arranged on the circuit board, the operational amplifier, the analog-to-digital conversion module and the control module are electrically connected in sequence, the operational amplifier is electrically connected with the microphone, and the control module is electrically connected with the ANDROID main board.
3. The ANDROID operating system-based high-performance sound level meter according to claim 2, wherein the circuit board is provided with a mounting opening, the bottom edge of the mounting opening is flush with the bottom edge of the socket, and the plugging portions of the operational amplifier, the analog-to-digital conversion module and the control module are fixedly connected with the socket through interface fixing devices.
4. The ANDROID operating system-based high-performance sound level meter according to claim 3, wherein the interface fixing device comprises a fixing frame, the fixing frame comprises a bottom plate and two side plates connected with opposite edges of the bottom plate, the fixing frame is clamped with a circuit board, a first through hole is arranged at the position of the side plate close to the bottom edge of the mounting opening, the first through hole and the magnetic locking ring are concentric and fixedly installed on the circuit board close to the side plate, one end of the locking rod passes through the magnetic locking ring and the first through hole and extends into the mounting opening, the other end of the locking rod is fixedly connected with the metal plate, a spring and a compression ring are arranged between the metal plate and the magnetic locking ring, the spring and the compression ring are sleeved outside the locking rod, the compression ring is arranged between the metal plate and the spring, the compression ring is connected with an L-shaped connecting rod, and a second through hole is arranged at the position of the side plate far away from the bottom edge of the mounting opening, one end of the L-shaped connecting rod is provided with a magnet and penetrates through the second through hole to extend into the mounting opening, the other end of the locking rod is provided with a semi-locking ring, the two semi-locking rings are combined to form a locking ring, the inner diameter of the locking ring is equal to the outer diameter of the inserting part, and magnetic blocks with the magnetism opposite to that of the magnet are arranged on two sides of the bottom ends of the operational amplifier, the analog-digital conversion module and the control module.
5. The ANDROID operating system-based high performance sound level gauge according to claim 4, wherein a guide plate is obliquely extended from one end of the side plate away from the bottom edge of the mounting opening.
6. The ANDROID operating system-based high-performance sound level meter according to claim 4, wherein the side plate is provided with a hook at the outer side, and the hook passes through a notch arranged at the edge of the mounting opening and is clamped with the circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023014913.9U CN214843606U (en) | 2020-12-14 | 2020-12-14 | High-performance sound level meter based on ANDROID operating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023014913.9U CN214843606U (en) | 2020-12-14 | 2020-12-14 | High-performance sound level meter based on ANDROID operating system |
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| CN214843606U true CN214843606U (en) | 2021-11-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611446A (en) * | 2020-12-14 | 2021-04-06 | 杭州爱华仪器有限公司 | High-performance sound level meter based on ANDROID operating system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611446A (en) * | 2020-12-14 | 2021-04-06 | 杭州爱华仪器有限公司 | High-performance sound level meter based on ANDROID operating system |
| CN112611446B (en) * | 2020-12-14 | 2023-06-02 | 杭州爱华仪器有限公司 | High-performance sound level meter based on ANDROID operating system |
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