Adjustable vibration isolation base and control method thereof

Abstract

The invention provides an adjustable vibration isolation base and a control method thereof. The vibration isolation base comprises a booster pump, a driving part, a guide rail, a perforated plate, a middle base plate, a bottom rib plate and an air bag, wherein the perforated plate, the middle base plate and the bottom rib plate are sequentially arranged at intervals from top to bottom, and the air bag is arranged between the middle base plate and the bottom rib plate. The guide rail extends from top to bottom; the air bag is communicated with the booster pump; the perforated plate and the middle base plate are matched to form a sound absorption structure, and the middle base plate, the air bag and the bottom rib plate are matched to form a vibration isolation structure. The middle base plate is arranged on the guide rail in a lifting mode through driving of a driving piece. According to the adjustable vibration isolation base, a vibration isolation structure and a sound absorption structure are integrated, the middle base plate is arranged to be movable, the height can be adjusted through gears of the driving part, and then the size of the sound absorption structure and the thickness of an air bag in the vibration isolation structure are synchronously adjusted; meanwhile, the air pressure of the air bag can be adjusted through gears of the booster pump; finally, the sound absorption and vibration isolation comprehensive performance of the adjustable vibration isolation base can be adjusted through gears of the driving piece and the booster pump.

Description

Technical Field

[0001] The invention relates to the field of vibration isolation base and control technology, and in particular to an adjustable vibration isolation base and a control method thereof. Background Art

[0002] With the development of large-scale and high-speed ships, the vibration and noise intensity of ship machinery and equipment has greatly increased, and the current requirements for ship vibration comfort are getting higher and higher. Vibration and noise have become important indicators that cannot be ignored in ship design and manufacturing. The vibration and noise of ship cabins mainly come from various rotating mechanical equipment.

[0003] At present, the control measures for ship vibration are mainly focused on isolating the vibration of mechanical equipment, for example, through vibration isolation bases such as air bags, the purpose of which is to reduce or isolate the further transmission of vibration to surrounding structures. Since the perforated plate sound absorption cavity and the air bag sandwich vibration isolation base are often designed for vibration reduction of ship mechanical equipment under specific working conditions, that is to say, after the perforated plate sound absorption cavity and the air bag sandwich vibration isolation base are designed and manufactured, they only have good sound absorption and vibration reduction performance for ship mechanical equipment under specific working conditions. As the navigation conditions of ships tend to become more complicated, traditional perforated plate sound absorption cavities and air bag sandwich vibration isolation bases are gradually unable to meet the multi-condition operation requirements of ship mechanical equipment. Therefore, it is urgent to design an adjustable vibration isolation base and its control method that can adapt to multi-condition operation for ship mechanical equipment. Summary of the invention

[0004] The present invention provides an adjustable vibration isolation base and a control method thereof, which are used to solve the problems that a traditional perforated plate sound absorption cavity usually realizes passive sound absorption based on the resonance of the sound cavity, that is, its sound absorption performance is difficult to change after the structural parameters are determined, and there is a problem of poor adaptability.

[0005] The present invention provides an adjustable vibration isolation base, comprising:

[0006] A booster pump, a driving member, a guide rail, a perforated plate, an intermediate base plate, a bottom rib plate, and an air bag arranged between the intermediate base plate and the bottom rib plate.

[0007] The guide rail extends from top to bottom, and the airbag is connected to the booster pump; the perforated plate and the intermediate substrate cooperate to form a sound absorption structure, and the intermediate substrate, the airbag and the bottom rib plate cooperate to form a vibration isolation structure; the intermediate substrate is driven by a driving member to be raised and lowered on the guide rail to adjust the sound absorption performance of the sound absorption structure and the vibration isolation performance of the vibration isolation structure.

[0008] According to the adjustable vibration isolation base provided by the present invention, the adjustable vibration isolation base further comprises:

[0009] Noise meter, used to collect noise power;

[0010] Vibration sensor, used to collect vibration intensity;

[0011] The server is electrically connected to the noise measuring instrument, the vibration sensor, the boosting pump and the driving member, and is used to obtain the noise power and vibration intensity of the driving member under different driving gears and different adjustment gears of the increase and decrease pump, so as to generate the total noise power level and the vibration intensity of the adjustable vibration isolation base; the total noise power level and the vibration intensity under different combinations are normalized to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base; according to the comprehensive performance evaluation value, the optimal adjustment parameters are determined and the boosting pump and the driving member are controlled accordingly; the adjustment parameters include the driving gear of the driving member and the adjustment gear of the increase and decrease pump.

[0012] The present invention also provides a control method for an adjustable vibration isolation base, comprising:

[0013] Obtaining the total noise power level of the driving member at different driving gears and the increasing and decreasing pump at different adjustment gears and the vibration intensity of the adjustable vibration isolation base;

[0014] Normalizing the total noise power level and the vibration intensity under different combinations to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base;

[0015] According to the comprehensive performance evaluation value, the best adjustment parameters are determined, and the adjustment parameters include the driving gear of the driving member and the adjustment gear of the increase / decrease pump.

[0016] According to the control method of the adjustable vibration isolation base provided by the present invention, the step of obtaining the total noise power level includes:

[0017] The time series signal of the noise power is collected and segmented to form a power spectrum over a period of time;

[0018] The noise power total level is generated based on the power spectrum.

[0019] According to the control method of the adjustable vibration isolation base provided by the present invention, the noise is a , t b The power spectrum of ] is X(t a , t b ), the total noise power level is X s ;

[0020] X(t a , t b )=[X(f1),X(f2),…,X(f p )];

[0021] X s =sum[X(f1),X(f2),…,X(f p )];

[0022] in, f s is the sampling frequency.

[0023] According to the control method of the adjustable vibration isolation base provided by the present invention, a vibration sensor for detecting vibration intensity is provided on the bottom rib plate.

[0024] According to the control method of the adjustable vibration isolation base provided by the present invention, the step of obtaining the total noise power level of the driving member at different driving gears and the increase / decrease pump at different adjustment gears and the vibration intensity of the adjustable vibration isolation base comprises:

[0025] The driving member is combined in m driving gears and the increasing and decreasing pump is combined in n regulating gears to obtain m×n total noise power levels and m×n vibration intensities.

[0026] According to the control method of the adjustable vibration isolation base provided by the present invention, the normalization processing step includes:

[0027] For the m×n noise power total level X s Normalizing with the vibration intensity V;

[0028]

[0029] Among them, min(X s ) and max(X s ) are respectively m×n said power total level X s min(V) and max(V) are the minimum and maximum values ​​of the m×n vibration intensities V, respectively.

[0030] According to the control method of the adjustable vibration isolation base provided by the present invention, the comprehensive sound absorption performance evaluation value

[0031] Among them, α+β=1, and α, β≥0.

[0032] According to the control method of the adjustable vibration isolation base provided by the present invention, the comprehensive sound absorption performance evaluation value μ is negatively correlated with the sound absorption and vibration isolation performance of the adjustable vibration isolation base.

[0033] The adjustable vibration isolation base and control method thereof provided by the present invention integrate the vibration isolation structure and the sound absorption structure to design an adjustable sound absorption and vibration isolation base, in which the middle base plate is arranged to be movable, and the height can be adjusted by the gear position of the driving member, thereby synchronously adjusting the volume of the sound absorption structure and the thickness of the airbag in the vibration isolation structure; at the same time, a booster pump is deployed, and the air pressure of the airbag can be adjusted by the gear position of the booster pump; finally, the comprehensive performance of sound absorption and vibration isolation of the adjustable vibration isolation base can be adjusted by the gear position of the driving member and the booster pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a structural schematic diagram of the sound absorption and vibration isolation base provided by the present invention.

[0036] Figure 2 It is a schematic diagram of the sound-absorbing and vibration-isolating base provided by the present invention being arranged in a ship cabin.

[0037] Figure 3 This is one of the flow charts of the control method of the adjustable vibration isolation base provided by the present invention.

[0038] Figure 4 This is the second flow chart of the control method of the adjustable vibration isolation base provided by the present invention.

[0039] Figure 5 It is a schematic diagram of a control system of the adjustable vibration isolation base provided by the present invention.

[0040] Figure 6 It is a schematic diagram of an electronic device provided by the present invention.

[0041] Reference numerals:

[0042] 10. perforated plate; 101. perforation; 20. intermediate substrate; 30. bottom rib plate; 40. sound absorbing structure; 50. vibration isolation structure; 60. booster pump; 70. drive member; 80. guide rail; 90. noise meter; 100. vibration sensor; 110. server; 510. acquisition module; 520. processing module; 530. determination module; 610. processor; 620. communication interface; 630. memory; 640. communication bus. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are 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.

[0044] Combine the following Figure 1 and Figure 2 The adjustable vibration isolation base provided by the present invention is described, and the adjustable vibration isolation base is mainly used for ship machinery and equipment, including a boosting pump 60, a driving member 70, a guide rail 80, a perforated 101 plate 10 arranged in sequence from top to bottom, an intermediate base plate 20, a bottom rib plate 30, and an airbag arranged between the intermediate base plate 20 and the bottom rib plate 30; the guide rail 80 extends from top to bottom, and the airbag is connected to the boosting pump 60; the perforated 101 plate 10 and the intermediate base plate 20 cooperate to form a sound absorbing structure 40, and the intermediate base plate 20, the airbag and the bottom rib plate 30 cooperate to form a vibration isolation structure 50; the intermediate base plate 20 is driven by the driving member 70 to be lifted and lowered on the guide rail 80 to adjust the sound absorption performance of the sound absorbing structure 40 and the vibration isolation performance of the vibration isolation structure 50.

[0045] Specifically, the booster pump 60 is used to inflate and deflate the airbag, and the pressure inside the airbag is controlled by controlling the air pressure inside the airbag. The booster pump 60 is connected to the airbag and connected by a pipe or a hose to ensure that the gas can smoothly enter and exit the airbag. The driver 70 is responsible for driving the intermediate substrate 20 to move up and down on the guide rail 80, thereby changing the spacing between the perforated 101 plate 10 and the intermediate substrate 20, and the relative position between the intermediate substrate 20 and the bottom rib plate 30. The driver 70 can be an electric, hydraulic or pneumatic drive, and the specific selection depends on the actual application scenario and performance requirements. The guide rail 80 provides a stable path for the lifting and lowering of the intermediate substrate 20, ensuring that the intermediate substrate 20 will not deviate from the predetermined trajectory during the lifting process. The guide rail 80 extends from top to bottom, providing sufficient space for the lifting and lowering of the intermediate substrate 20. The perforated 101 plate 10 is located at the top layer, and cooperates with the intermediate substrate 20 to form a sound absorbing structure 40. The hole design on the perforated 101 plate 10 can absorb and disperse sound waves and reduce the propagation of noise. The intermediate substrate 20 is located between the perforated 101 plate 10 and the bottom rib plate 30. It is both a part of the sound absorbing structure 40 and a component of the vibration isolation structure 50. The lifting and lowering of the intermediate substrate 20 will change the performance of the sound absorbing structure 40 and the vibration isolation structure 50. The bottom rib plate 30 is located at the bottom layer and provides structural support for the entire base. The vibration isolation structure 50 is formed in cooperation with the intermediate substrate 20 and the airbag, which can reduce the impact of vibration on the surrounding environment. The airbag is arranged between the intermediate substrate 20 and the bottom rib plate 30, and is adjusted by changing the height and pressure of the airbag, thereby changing the stiffness and damping characteristics of the vibration isolation structure 50.

[0046] The intermediate substrate 20 is driven to rise and fall by the driving member 70, and the spacing between the perforated plate 101 and the intermediate substrate 20 is changed, thereby adjusting the sound absorption coefficient and frequency range of the sound absorbing structure 40. The lifting and lowering of the intermediate substrate 20 will also change the relative position between the intermediate substrate 20 and the bottom rib plate 30, thereby affecting the stiffness and damping characteristics of the vibration isolation structure 50. By accurately controlling the lifting and lowering height of the intermediate substrate 20, fine adjustment of the vibration isolation performance can be achieved.

[0047] The adjustable vibration isolation base provided by the present invention integrates the vibration isolation structure 50 and the sound absorption structure 40 to design an adjustable sound absorption and vibration isolation base, in which the intermediate substrate 20 is set to be movable, and the height can be adjusted by the gear position of the driving member 70, thereby synchronously adjusting the volume of the sound absorption structure 40 and the thickness of the airbag in the vibration isolation structure 50; at the same time, a booster pump 60 is deployed, and the air pressure of the airbag can be adjusted by the gear position of the booster pump 60; finally, the comprehensive sound absorption and vibration isolation performance of the adjustable vibration isolation base can be adjusted by the gear position of the driving member 70 and the booster pump 60.

[0048] In some embodiments, Figure 1 and Figure 2As shown, the adjustable vibration isolation base also includes: a noise meter 90, a vibration sensor 100 and a server 110. The noise meter 90 is used to collect noise power; the vibration sensor 100 is used to collect vibration intensity; the server 110 is electrically connected to the noise meter 90, the vibration sensor 100, the booster pump 60 and the driver 70, and is used to obtain the noise power and vibration intensity of the driver 70 under different driving gears and different adjustment gears of the increase and decrease pump, so as to generate the total level of noise power and the vibration intensity of the adjustable vibration isolation base; the total level of noise power and the vibration intensity under different combinations are normalized to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base; according to the comprehensive performance evaluation value, the best adjustment parameters are determined and the booster pump 60 and the driver 70 are controlled accordingly; the adjustment parameters include the driving gear of the driver 70 and the adjustment gear of the increase and decrease pump.

[0049] In this embodiment, the noise meter 90 is used to collect the noise power in the environment in real time, that is, the intensity and spectrum distribution of the noise. It is usually installed near the adjustable vibration isolation base or near the noise source that needs to be monitored to ensure the accuracy of the collected noise data. The vibration sensor 100 is used to collect the vibration intensity of the base or the surrounding environment in real time, including parameters such as the amplitude, frequency and acceleration of the vibration. It is usually installed at the key part of the base or near the vibration source that needs to be monitored to accurately reflect the vibration isolation effect of the base. The server 110 serves as a data processing and control center and is electrically connected to the noise meter 90, the vibration sensor 100, the booster pump 60 and the drive 70. It is responsible for receiving, processing and analyzing data from each sensor, and generating control instructions based on the analysis results.

[0050] During operation, the server 110 first obtains the noise power and vibration intensity data of the driver 70 at different driving gears and the booster pump 60 at different adjustment gears. Then, these data are normalized to eliminate the influence of different measurement conditions and units. The server 110 calculates the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base based on the normalized data. This evaluation value comprehensively considers the total noise power level and vibration intensity, and reflects the overall performance of the base under different adjustment parameters. The server 110 determines the optimal adjustment parameters (including the driving gear of the driver 70 and the adjustment gear of the booster pump 60) based on the comprehensive performance evaluation value, and generates corresponding control instructions to send to the booster pump 60 and the driver 70.

[0051] Figure 3 FIG. 1 is one of the flow charts of the control method of the adjustable vibration isolation base provided by the present invention, such as Figure 3 As shown, in order to adapt to different scenes or situations, the control method includes the following steps:

[0052] Step S301: Obtain the total noise power level of the driving component at different driving gears and different adjustment gears of the increase / decrease pump and the vibration intensity of the adjustable vibration isolation base.

[0053] Step S302: normalizing the total noise power levels and vibration intensities under different combinations to determine a comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base.

[0054] Step S303: Determine the best adjustment parameters according to the comprehensive performance evaluation value, where the adjustment parameters include the driving gear of the driving member and the adjustment gear of the increasing and decreasing pump.

[0055] When the adjustable vibration isolation base is used, the total noise power level and the vibration intensity of the adjustable vibration isolation base under different adjustment parameters (ie, different driving gears of the driving member and different adjustment gears of the booster pump) are obtained.

[0056] The noise meter collects and records the total noise power level in each drive gear and adjustment gear in real time. The vibration sensor collects and records the vibration intensity in each drive gear and adjustment gear in real time. Ensure that the collected data is accurate and comprehensive, and can reflect the performance of the base under different adjustment parameters.

[0057] Then the total noise power level and vibration intensity under different combinations are normalized to eliminate the influence of different measurement conditions and units, so as to obtain comparable comprehensive performance evaluation values. The collected total noise power level and vibration intensity data are preprocessed, such as removing outliers and smoothing.

[0058] Based on the normalized data, the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base is calculated. This evaluation value can be a comprehensive score or index to reflect the overall performance of the base under different adjustment parameters. Based on the comprehensive performance evaluation value, the optimal adjustment parameters are determined to achieve the best sound absorption and vibration isolation effect.

[0059] Finally, the comprehensive performance evaluation values ​​are sorted or compared to find the best combination of adjustment parameters. The best drive gear and booster pump adjustment gear are determined, and the corresponding comprehensive performance evaluation values ​​are the highest or meet specific performance requirements. The determined optimal adjustment parameters are sent to the drive and booster pump to adjust the performance of the base.

[0060] In some embodiments, Figure 4 As shown, the steps of obtaining the total level of noise power include:

[0061] Step S401: collecting and segmenting the time series signal of the noise power to form a power spectrum within a period of time.

[0062] Step S402: Generate a total noise power level based on the power spectrum.

[0063] Generally speaking, the total power level of cabin noise is the most sensitive to operators and is also a key parameter affecting the quietness and comfort of ships. Therefore, noise measuring instruments are deployed at the operating stations of ship machinery and equipment to measure and calculate the noise power spectrum near the operating stations in real time, so that the total power level corresponding to the noise power spectrum can be analyzed in real time. The specific calculation process of the total power level is as follows:

[0064] First, for a certain operating condition of ship machinery and equipment, in [t a , t b ] time period, the time series signal Z(t) collected by the noise measuring instrument has k data, which are:

[0065] Z(t)=[Z1, Z2, ..., Z k ]

[0066] Secondly, for the time series signal Z(t) collected by the noise measuring instrument, power spectrum analysis is performed based on MATLAB, LabView or Origin software, and the frequency domain is divided into (p-1) parts (p is generally an integer multiple of 512) to form the cabin noise at time [t a , t b ]’s power spectrum:

[0067] X(t a , t b )=[X(f1),X(f2),…,X(f p )]

[0068] in, f s is the sampling frequency of the noise meter.

[0069] Finally, the total power level corresponding to the noise power spectrum is X s is [X(f1), X(f2), …, X(f p )], therefore, for a certain operating condition of ship machinery and equipment, the total power level X of the noise near the cabin operating position can be calculated. s :

[0070] X s =sum[X(f1),X(f2),…,X(f p )]

[0071] like Figure 2 As shown, a vibration sensor for detecting vibration intensity is deployed at the center of the bottom rib of the adjustable sound-absorbing and vibration-isolating base to monitor the vibration intensity V of the ship's mechanical equipment after it passes through the base in real time, thereby ensuring that the sensor can accurately capture the vibration signal transmitted from the ship's mechanical equipment to the base and finally to the hull.

[0072] In some embodiments, the steps of obtaining the total noise power level of the driving component under different driving gears and different adjustment gears of the increase and decrease pump and the vibration intensity of the adjustable vibration isolation base include: the driving component is combined in m driving gears and the increase and decrease pump is combined in n adjustment gears to obtain m×n total noise power levels and m×n vibration intensities.

[0073] In a specific embodiment, the adjustment gear of the driving member (stepping motor) is 1, 2, 3...m gear (m is a positive integer greater than 3), and the height of the lower panel can be adjusted by the gear of the stepping motor, thereby synchronously adjusting the volume of the sound absorbing structure and the thickness of the airbag; the adjustment gear of the booster pump is 1, 2, 3...n gear (n is a positive integer greater than 3), and the air pressure of the airbag can be adjusted by the gear of the booster pump.

[0074] First, under certain operating conditions of ship machinery and equipment, for m types of stepper motor adjustment gears and n types of booster pump adjustment gears, there are m×n adjustment gear combinations, which also correspond to m×n total power levels X of noise power spectrum measurement. s m×n vibration intensities V measured by the vibration sensor;

[0075] For the sound-absorbing and vibration-isolating base, the total power level X measured and analyzed by the noise meter near the operating station s The smaller the better, the vibration intensity V measured by the vibration sensor is also the smaller the better.

[0076] Then, for each of the m×n power stages X s Normalized with the vibration intensity V, as follows:

[0077]

[0078] Among them, min(X s ) and max(X s ) are m×n power total stages X s min(V) and max(V) are the minimum and maximum values ​​of m×n vibration intensities V respectively.

[0079] Finally, the comprehensive sound absorption performance evaluation value μ of the sound absorption and vibration isolation base can be expressed as:

[0080]

[0081] Among them, α+β=1, and α, β≥0. α, β can be flexibly adjusted according to the specific requirements of the cabin operator for the sound absorption level and vibration isolation performance of the sound absorption and vibration isolation base.

[0082] Finally, whenever the operating state of the ship's mechanical equipment changes, the stepper motor and the gas booster pump are adjusted to the optimal gear combination to minimize the comprehensive sound absorption performance evaluation value μ of the sound-absorbing and vibration-isolating base, thereby enabling the sound-absorbing and vibration-isolating base to achieve the best comprehensive sound absorption and vibration isolation performance, thereby achieving the goal of adaptive control of the sound-absorbing and vibration-isolating base.

[0083] In summary, the embodiment of the present invention combines the perforated plate sound absorption cavity with the airbag sandwich vibration isolation base, and proposes an adjustable sound absorption and vibration isolation base and a control method:

[0084] (1) An adjustable sound-absorbing and vibration-isolating base is designed by integrating the vibration isolation structure and the sound absorption structure. The intermediate base plate is set to be movable, and the height can be adjusted by the gear position of the driving component, thereby synchronously adjusting the volume of the sound absorption structure and the thickness of the airbag in the vibration isolation structure. At the same time, a booster pump is deployed, and the air pressure of the airbag can be adjusted by the gear position of the booster pump. Finally, the comprehensive performance of sound absorption and vibration isolation of the adjustable vibration isolation base can be adjusted by the gear position of the driving component and the booster pump.

[0085] (2) Generally speaking, the total power level of cabin noise is the most sensitive to operators and is also a key parameter affecting the quietness and comfort of the ship. Therefore, noise measuring instruments are deployed at the operating stations of ship machinery and equipment to measure and calculate the noise power spectrum near the operating station in real time, so that the total power level X corresponding to the noise power spectrum can be analyzed in real time. s At the same time, a vibration sensor is deployed at the center of the bottom rib of the sound-absorbing and vibration-isolating base to monitor in real time the vibration intensity V of the ship's mechanical equipment after passing through the sound-absorbing and vibration-isolating base.

[0086] (3) Deploy a server in the cabin where the ship's mechanical equipment is located. When the operating conditions of the ship's mechanical equipment change, adjust the gear positions of the stepper motor and the gas booster pump in turn to adjust the comprehensive sound absorption and vibration isolation performance of the sound absorption and vibration isolation base, and record the total power level X measured and analyzed by the noise meter near the operating station under each gear combination in real time on the server. s And the vibration intensity V monitored in real time by the vibration sensor.

[0087] (4) By adjusting the total power level X s The sound absorption and vibration isolation comprehensive performance of the sound-absorbing and vibration-isolating base is collaboratively characterized by normalizing it with the vibration intensity V, and based on this, the optimal gear combination of the stepper motor and the gas booster pump is found.

[0088] (5) Whenever the operating state of the ship's mechanical equipment changes, the stepper motor and the gas booster pump are adjusted to the optimal gear combination so that the sound absorption and vibration isolation base can achieve the best comprehensive performance of sound absorption and vibration isolation, thereby achieving the goal of adaptive control of the sound absorption and vibration isolation base.

[0089] The control system of the adjustable vibration isolation base provided in the embodiment of the present invention is described below. The control system of the adjustable vibration isolation base described below and the control method described above can be referred to each other.

[0090] like Figure 5 As shown, the control system of the adjustable vibration isolation base includes an acquisition module 510, a processing module 520 and a determination module 530. The acquisition module 510 is used to acquire the total noise power level of the driving member under different driving gears and the different adjustment gears of the increase and decrease pump and the vibration intensity of the adjustable vibration isolation base; the processing module 520 is used to normalize the total noise power level and the vibration intensity under different combinations to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base; the determination module 530 is used to determine the best adjustment parameters according to the comprehensive performance evaluation value, and the adjustment parameters include the driving gear of the driving member and the adjustment gear of the increase and decrease pump.

[0091] Figure 6 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 6 As shown, the electronic device may include: a processor 610, a communication interface 620, a memory 630 and a communication bus 640, wherein the processor 610, the communication interface 620 and the memory 630 communicate with each other through the communication bus 640. The processor 610 may call the logic instructions in the memory 630 to execute the control method including: obtaining the total noise power level of the driving member under different driving gears and the different adjustment gears of the increase and decrease pump and the vibration intensity of the adjustable vibration isolation base; normalizing the total noise power level and the vibration intensity under different combinations to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base; determining the best adjustment parameters according to the comprehensive performance evaluation value, and the adjustment parameters include the driving gear of the driving member and the adjustment gear of the increase and decrease pump.

[0092] It should be noted that the electronic device in this embodiment can be a server, a PC, or other devices in specific implementation, as long as its structure includes the following: Figure 6 The processor 610, communication interface 620, memory 630 and communication bus 640 are shown, wherein the processor 610, communication interface 620 and memory 630 communicate with each other through the communication bus 640, and the processor 610 can call the logic instructions in the memory 630 to execute the above method. This embodiment does not limit the specific implementation form of the electronic device.

[0093] In addition, the logic instructions in the above-mentioned memory 630 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0094] Furthermore, an embodiment of the present invention discloses a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the control methods provided by the above-mentioned method embodiments, and the control method includes: obtaining the total noise power level of the driving member under different driving gears and different adjustment gears of the increase and decrease pump and the vibration intensity of the adjustable vibration isolation base; normalizing the total noise power level and the vibration intensity under different combinations to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base; determining the optimal adjustment parameters based on the comprehensive performance evaluation value, and the adjustment parameters include the driving gear of the driving member and the adjustment gear of the increase and decrease pump.

[0095] On the other hand, an embodiment of the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, it is implemented to execute the control method provided by the above-mentioned embodiments, and the control method includes: obtaining the total noise power level of the driving member under different driving gears and the different adjustment gears of the increase and decrease pump and the vibration intensity of the adjustable vibration isolation base; normalizing the total noise power level and the vibration intensity under different combinations to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base; determining the optimal adjustment parameters based on the comprehensive performance evaluation value, and the adjustment parameters include the driving gear of the driving member and the adjustment gear of the increase and decrease pump.

[0096] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0097] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

[0099] The above embodiments are only used to illustrate the present invention, but not to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. An adjustable vibration isolation base, characterized in that: include: A booster pump, a driving member, a guide rail, a perforated plate, an intermediate base plate, a bottom rib plate, and an air bag arranged between the intermediate base plate and the bottom rib plate. The guide rail extends from top to bottom, and the airbag is connected to the booster pump; the perforated plate and the intermediate substrate cooperate to form a sound absorption structure, and the intermediate substrate, the airbag and the bottom rib plate cooperate to form a vibration isolation structure; the intermediate substrate is driven by a driving member to be raised and lowered on the guide rail to adjust the sound absorption performance of the sound absorption structure and the vibration isolation performance of the vibration isolation structure.

2. The adjustable vibration isolation base according to claim 1, characterized in that: The adjustable vibration isolation base also includes: Noise meter, used to collect noise power; Vibration sensor, used to collect vibration intensity; The server is electrically connected to the noise measuring instrument, the vibration sensor, the boosting pump and the driving member, and is used to obtain the noise power and vibration intensity of the driving member under different driving gears and different adjustment gears of the increase and decrease pump, so as to generate the total noise power level and the vibration intensity of the adjustable vibration isolation base; the total noise power level and the vibration intensity under different combinations are normalized to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base; according to the comprehensive performance evaluation value, the optimal adjustment parameters are determined and the boosting pump and the driving member are controlled accordingly; the adjustment parameters include the driving gear of the driving member and the adjustment gear of the increase and decrease pump.

3. A control method based on the adjustable vibration isolation base according to claim 1 or 2, characterized in that: include: Obtaining the total noise power level of the driving member at different driving gears and the increasing and decreasing pump at different adjustment gears and the vibration intensity of the adjustable vibration isolation base; Normalizing the total noise power level and the vibration intensity under different combinations to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base; According to the comprehensive performance evaluation value, the best adjustment parameters are determined, and the adjustment parameters include the driving gear of the driving member and the adjustment gear of the increase / decrease pump.

4. The control method of the adjustable vibration isolation base according to claim 3, characterized in that: The step of obtaining the total noise power level comprises: The time series signal of the noise power is collected and segmented to form a power spectrum over a period of time; The noise power total level is generated based on the power spectrum.

5. The control method of the adjustable vibration isolation base according to claim 4, characterized in that: Noise in a period of time [t a , t b The power spectrum of ] is X(t a , t b ), the total noise power level is X s ; X(t a ,t b )=[X(f1)、X(f2)、…、X(f p )]; X s =sum[X(f1)、X(f2)、…、X(f p )]; in, f s is the sampling frequency.

6. The control method of the adjustable vibration isolation base according to claim 3, characterized in that: The bottom rib plate is provided with a vibration sensor for detecting vibration intensity.

7. The control method of the adjustable vibration isolation base according to claim 3, characterized in that: The step of obtaining the total noise power level of the driving member at different driving gears and the increasing and decreasing pump at different adjustment gears and the vibration intensity of the adjustable vibration isolation base comprises: The driving member is combined in m driving gears and the increasing and decreasing pump is combined in n regulating gears to obtain m×n total noise power levels and m×n vibration intensities.

8. The control method of the adjustable vibration isolation base according to claim 7, characterized in that: The steps of normalization processing include: For the m×n noise power total level X s Normalizing with the vibration intensity V; Among them, min(X s ) and max(X s ) are respectively m×n total power levels X s min(V) and max(V) are the minimum and maximum values ​​of the m×n vibration intensities V, respectively.

9. The control method of the adjustable vibration isolation base according to claim 3, characterized in that: The comprehensive sound absorption performance evaluation value Among them, α+β=1, and α, β≥0.

10. The control method of the adjustable vibration isolation base according to claim 9, characterized in that: The comprehensive sound absorption performance evaluation value μ is negatively correlated with the sound absorption and vibration isolation performance of the adjustable vibration isolation base.

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