Engine power generation system based on noise power generation and vibration power generation and control method thereof

Abstract

The invention discloses an engine power generation system based on noise power generation and vibration power generation and a control method thereof.The engine power generation system comprises an engine, a damping device, a vibration energy conversion device, a Fresnel acoustic lens device, a noise energy conversion device, a noise monitoring device, an axle generator and a direct-current bus, the vibration energy conversion device is used for converting vibration energy absorbed by the vibration reduction device into electric energy, the Fresnel acoustic lens device is used for converging noise of an engine, and the noise energy conversion device is used for converting the noise converged by the Fresnel acoustic lens device into electric energy. The noise monitoring device is used for conducting fault monitoring on the engine according to noise gathered by the Fresnel acoustic lens device, and the shaft generator is used for generating electric energy under driving of the engine. The power generation efficiency of the engine and the fault detection efficiency of the engine are improved, and the method can be widely applied to the technical field of engines.

Description

Technical Field

[0001] The present invention relates to the technical field of engines, and in particular to an engine power generation system based on noise power generation and vibration power generation and a control method thereof. Background Art

[0002] With the increasing attention paid to environmental protection and energy efficiency around the world, it has not only promoted the research and development and application of new energy technologies, but also put forward higher requirements for the transformation and upgrading of traditional energy generation technologies. Especially in the industrial field, noise pollution and vibration problems have become one of the important factors restricting the sustainable development of enterprises. Therefore, the development of a diesel engine noise monitoring and vibration control integrated power generation system based on DC networking has broad market prospects and social benefits.

[0003] In the development of diesel engine noise and vibration monitoring technology, diesel engine power generation system, as an important part of traditional energy power generation, has high reliability and economy after years of technological accumulation and innovation. However, with the advancement of science and technology and the improvement of environmental protection requirements, traditional diesel engine power generation system faces great challenges in noise and vibration control. Modern diesel engine power generation system pays more attention to intelligent and modular design, and realizes precise control and efficient operation of generator sets by integrating advanced control technology and optimization algorithms. Among them, noise and vibration monitoring technology is one of the important development directions of diesel engine technology. By adopting advanced sensors and signal processing technology, it can realize real-time monitoring and accurate analysis of equipment operation status, providing an important basis for fault diagnosis and preventive maintenance. The International Maritime Organization (IMO) has clearly set limits and requirements for ship noise pollution. In China, relevant laws and regulations regulate various noise sources including ships, require ships to take effective measures to reduce noise pollution during navigation and mooring, and also set clear standards for ship noise.

[0004] In terms of green ship energy conservation and emission reduction development, IMO has adopted a series of greenhouse gas emission reduction strategies and clarified emission reduction targets by 2030 and 2050. In China, relevant departments have formulated a number of action plans for ship energy conservation and emission reduction, aiming to promote ship energy conservation and emission reduction through technological innovation, optimization of shipping structure, improvement of ship energy efficiency, and strengthening of supervision.

[0005] The diesel engine system in the prior art has the following disadvantages:

[0006] 1) Diesel engine noise monitoring mainly relies on traditional sensors and manual inspections. The working conditions of personnel inspections are poor, consuming a lot of manpower and material resources, and the monitoring accuracy and real-time performance are limited. The data processing and analysis capabilities are weak, making it difficult to achieve intelligent monitoring and early warning.

[0007] 2) Diesel engines often bring noise when they vibrate. The existing technology mainly uses high-quality sound insulation materials in the engine compartment, such as sound insulation cotton, sound insulation felt, etc., to effectively absorb and block the noise generated when the engine is running, or thickens the sound insulation treatment of the firewall to prevent the noise from entering the cockpit or the surrounding environment, or installs vibration isolation devices, that is, installs vibration reduction devices at the bottom of the diesel engine, such as shock absorbers, vibration reduction platforms, etc., to reduce the noise and vibration caused by vibration. The vibration reduction and noise reduction effects are general, and the energy carried by vibration and noise cannot be effectively utilized.

[0008] 3) It mainly adopts AC networking mode, which has problems such as large power transmission loss and high system complexity, and is difficult to integrate with energy storage systems, renewable energy power generation systems, etc. Summary of the invention

[0009] In order to solve the above technical problems, the purpose of the present invention is to provide an engine power generation system based on noise power generation and vibration power generation and a control method thereof, which can convert the vibration and noise generated by the engine into electrical energy when the engine drives the generator to generate electricity, and can also monitor the engine faults through the noise generated by the engine, thereby improving the engine's power generation efficiency and the engine's fault detection efficiency.

[0010] The first technical solution adopted by the present invention is:

[0011] An engine power generation system based on noise power generation and vibration power generation comprises an engine, a vibration reduction device, a vibration energy conversion device, a Fresnel acoustic lens device, a noise energy conversion device, a noise monitoring device, a shaft-belt generator and a DC bus, wherein the vibration reduction device is used to absorb the vibration energy of the engine, the vibration energy conversion device is used to convert the vibration energy absorbed by the vibration reduction device into electrical energy, the Fresnel acoustic lens device is used to gather the noise of the engine, the noise energy conversion device is used to convert the noise gathered by the Fresnel acoustic lens device into electrical energy, the noise monitoring device is used to perform fault monitoring on the engine according to the noise gathered by the Fresnel acoustic lens device, the shaft-belt generator is used to generate electrical energy under the drive of the engine, and the vibration energy conversion device, the noise energy conversion device, the noise monitoring device and the shaft-belt generator are all electrically connected to the DC bus.

[0012] Furthermore, the vibration reduction device includes a vibration reduction platform and a spring vibration reduction device. The vibration reduction platform is installed at the bottom of the generator. A plurality of spring vibration reduction devices are arranged on the vibration reduction platform. The spring vibration reduction devices are drivingly connected to the outer casing of the generator.

[0013] Furthermore, the vibration energy conversion device is an electromagnetic vibration energy collection device, which is used to convert the mechanical energy of the spring shock absorber into electrical energy through electromagnetic induction.

[0014] Furthermore, the Fresnel acoustic lens device includes a box and a Fresnel acoustic lens, the box wraps the engine, the Fresnel acoustic lens is arranged on the inner surface of the box, and the Fresnel acoustic lens is used to converge the noise of the engine to the center position of the Fresnel acoustic lens.

[0015] Furthermore, the noise energy conversion device includes a noise collecting horn, a Helmholtz resonance cavity and an integrated PVDF piezoelectric film. The sound wave inlet of the noise collecting horn is arranged at the center position of the Fresnel acoustic lens, the sound wave outlet of the noise collecting horn is connected to the sound wave inlet of the Helmholtz resonance cavity, the integrated PVDF piezoelectric film is arranged at the sound wave outlet of the Helmholtz resonance cavity, the integrated PVDF piezoelectric film is electrically connected to the DC bus, the noise collecting horn is used to collect the noise converged by the Fresnel acoustic lens into the Helmholtz resonance cavity, the Helmholtz resonance cavity is used to strengthen the noise, and the integrated PVDF piezoelectric film is deformed under the action of noise, thereby converting the energy carried by the noise into electrical energy.

[0016] Furthermore, the noise monitoring device includes an array noise collector and a noise comprehensive extraction and processing device, the array noise collector is arranged at the sound wave outlet of the Helmholtz resonance cavity, the noise comprehensive extraction and processing device is connected to the array noise collector, and the noise comprehensive extraction and processing device is also electrically connected to the DC bus, the array noise collector is used to convert the noise enhanced by the Helmholtz resonance cavity into a sound vibration signal, and the noise comprehensive extraction and processing device is used to perform signal analysis on the sound vibration signal to obtain the operating status of the engine.

[0017] Furthermore, the engine power generation system also includes a first AC / DC bidirectional converter, a second AC / DC bidirectional converter, a third AC / DC bidirectional converter and a fourth AC / DC bidirectional converter. The vibration energy conversion device is electrically connected to the DC bus through the first AC / DC bidirectional converter, the noise monitoring device is electrically connected to the DC bus through the second AC / DC bidirectional converter, the noise energy conversion device is electrically connected to the DC bus through the third AC / DC bidirectional converter, and the shaft belt generator is electrically connected to the DC bus through the fourth AC / DC bidirectional converter. The DC bus is used to collect the electric energy generated by the vibration energy conversion device, the noise energy conversion device and the shaft belt generator, and is also used to power the noise monitoring device.

[0018] Furthermore, the engine power generation system also includes a lithium battery pack and a first DC bidirectional converter, the lithium battery pack is electrically connected to the DC bus through the first DC bidirectional converter, and the lithium battery pack is used to store the electrical energy collected by the DC bus or to supply power to the DC bus.

[0019] Furthermore, the engine power generation system also includes a mains power device and a second DC bidirectional converter, the mains power device is electrically connected to the DC bus through the second DC bidirectional converter, and the mains power device is used to store the electric energy collected by the DC bus or supply power to the DC bus.

[0020] The second technical solution adopted by the present invention is:

[0021] A control method for an engine power generation system based on noise power generation and vibration power generation, which is used to be executed by the above-mentioned engine power generation system based on noise power generation and vibration power generation, comprises the following steps:

[0022] The vibration energy of the engine is absorbed by the vibration reduction device, and the vibration energy absorbed by the vibration reduction device is converted into electrical energy by the vibration energy conversion device;

[0023] The noise of the engine is gathered by the Fresnel acoustic lens device, the engine is monitored for faults by the noise monitoring device according to the noise gathered by the Fresnel acoustic lens device, and the noise energy conversion device is used to convert the noise gathered by the Fresnel acoustic lens device into electrical energy;

[0024] converting the mechanical energy of the engine into electrical energy via the shaft generator;

[0025] The electrical energy generated by the vibration energy conversion device, the noise energy conversion device and the shaft generator is collected through the DC bus, and the noise monitoring device is powered through the DC bus.

[0026] The beneficial effects of the present invention are as follows: the present invention provides an engine power generation system based on noise power generation and vibration power generation and a control method thereof, the engine power generation system based on noise power generation and vibration power generation comprises an engine, a vibration reduction device, a vibration energy conversion device, a Fresnel acoustic lens device, a noise energy conversion device, a noise monitoring device, a shaft belt generator and a DC bus, the vibration reduction device is used to absorb the vibration energy of the engine, the vibration energy conversion device is used to convert the vibration energy absorbed by the vibration reduction device into electric energy, the Fresnel acoustic lens device is used to gather the noise of the engine, the noise energy conversion device is used to convert the noise gathered by the Fresnel acoustic lens device into electric energy, the noise monitoring device is used to monitor the engine for faults according to the noise gathered by the Fresnel acoustic lens device, the shaft belt generator is used to generate electric energy under the drive of the engine, and the vibration energy conversion device, the noise energy conversion device, the noise monitoring device and the shaft belt generator are all electrically connected to the DC bus. The present invention can convert the vibration and noise generated by the engine into electric energy when the engine drives the generator to generate electricity, and can also monitor the engine for faults through the noise generated by the engine, thereby improving the power generation efficiency of the engine and the fault detection efficiency of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A module block diagram of an engine power generation system based on noise power generation and vibration power generation provided by an embodiment of the present invention;

[0028] Figure 2 A schematic diagram of energy and signal transmission of an engine power generation system based on noise power generation and vibration power generation provided by an embodiment of the present invention;

[0029] Figure 3 A flowchart of the steps of a control method for an engine power generation system based on noise power generation and vibration power generation provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The step numbers in the following embodiments are only provided for the convenience of explanation and description, and the order between the steps is not limited in any way. The execution order of each step in the embodiment can be adaptively adjusted according to the understanding of those skilled in the art.

[0031] In the description of the present invention, the meaning of "a plurality" is more than two. If there is a description of "a first" or "a second", it is only used to distinguish the technical features, and it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features. In addition, unless otherwise defined, all technical and scientific terms used in this article have the same meaning as those commonly understood by those skilled in the art. The terms used in this specification are only for describing specific embodiments, not for limiting the present invention.

[0032] Reference Figure 1 The present invention provides an engine power generation system based on noise power generation and vibration power generation, comprising an engine, a vibration reduction device, a vibration energy conversion device, a Fresnel acoustic lens device, a noise energy conversion device, a noise monitoring device, a shaft belt generator and a DC bus, wherein the vibration reduction device is used to absorb the vibration energy of the engine, the vibration energy conversion device is used to convert the vibration energy absorbed by the vibration reduction device into electrical energy, the Fresnel acoustic lens device is used to gather the noise of the engine, the noise energy conversion device is used to convert the noise gathered by the Fresnel acoustic lens device into electrical energy, the noise monitoring device is used to monitor the engine for faults according to the noise gathered by the Fresnel acoustic lens device, the shaft belt generator is used to generate electrical energy under the drive of the engine, and the vibration energy conversion device, the noise energy conversion device, the noise monitoring device and the shaft belt generator are all electrically connected to the DC bus.

[0033] The embodiment of the present invention can convert the vibration and noise generated by the engine into electrical energy when the engine drives the generator to generate electricity, and can also monitor the engine for faults through the noise generated by the engine, thereby improving the power generation efficiency of the engine and the fault detection efficiency of the engine.

[0034] As a further optional implementation, the vibration reduction device includes a vibration reduction platform and a spring vibration reduction device. The vibration reduction platform is installed at the bottom of the generator. A plurality of spring vibration reduction devices are arranged on the vibration reduction platform. The spring vibration reduction devices are drivingly connected to the casing of the generator.

[0035] As a further optional implementation, the vibration energy conversion device is an electromagnetic vibration energy collection device for converting the mechanical energy of the spring shock absorber into electrical energy through electromagnetic induction.

[0036] The embodiment of the present invention utilizes the strong vibration borne by the spring damper in the vibration damping platform and uses an electromagnetic vibration energy collection device with a spring to increase the amplitude to utilize the vibration energy of the engine, thereby improving the power generation efficiency of the engine.

[0037] As a further optional embodiment, the Fresnel acoustic lens device includes a box and a Fresnel acoustic lens, the box wraps the engine, the Fresnel acoustic lens is arranged on the inner surface of the box, and the Fresnel acoustic lens is used to converge the noise of the engine to the center position of the Fresnel acoustic lens.

[0038] The embodiment of the present invention adopts Fresnel acoustic lens technology to converge chaotic noises of varying sizes into highly integrated noise, thereby solving the noise complexity problem and facilitating the subsequent use of noise to generate electricity and monitor the operating status of the engine.

[0039] As a further optional embodiment, the noise energy conversion device includes a noise collecting horn, a Helmholtz resonance cavity and an integrated PVDF piezoelectric film. The sound wave inlet of the noise collecting horn is arranged at the center of the Fresnel acoustic lens, the sound wave outlet of the noise collecting horn is connected to the sound wave inlet of the Helmholtz resonance cavity, the integrated PVDF piezoelectric film is arranged at the sound wave outlet of the Helmholtz resonance cavity, the integrated PVDF piezoelectric film is electrically connected to the DC bus, the noise collecting horn is used to collect the noise converged by the Fresnel acoustic lens into the Helmholtz resonance cavity, the Helmholtz resonance cavity is used to intensify the noise, and the integrated PVDF piezoelectric film is deformed under the action of noise, thereby converting the energy carried by the noise into electrical energy.

[0040] The embodiment of the present invention gathers noise based on Fresnel acoustic lens technology, uses a fundamental speaker to focus sound waves, strengthens the noise through a Helmholtz resonance cavity, and converts the enhanced noise into electrical energy through a PVDF power generation film, thereby improving the power generation efficiency of the engine.

[0041] Further as an optional embodiment, the noise monitoring device includes an array noise collector and a noise comprehensive extraction and processing device, the array noise collector is arranged at the sound wave outlet of the Helmholtz resonance cavity, the noise comprehensive extraction and processing device is connected to the array noise collector, and the noise comprehensive extraction and processing device is also electrically connected to the DC bus, the array noise collector is used to convert the noise enhanced by the Helmholtz resonance cavity into a sound vibration signal, and the noise comprehensive extraction and processing device is used to perform signal analysis on the sound vibration signal to obtain the operating status of the engine.

[0042] The embodiment of the present invention adopts a high-precision microphone array sound collector to convert noise into a sound vibration signal, and uses a neural network model algorithm to perform data analysis and fault diagnosis based on the sound vibration signal, thereby providing preventive maintenance suggestions for the engine system and improving the engine's fault detection efficiency.

[0043] Further as an optional embodiment, the engine power generation system also includes a first AC / DC bidirectional converter, a second AC / DC bidirectional converter, a third AC / DC bidirectional converter and a fourth AC / DC bidirectional converter. The vibration energy conversion device is electrically connected to the DC bus through the first AC / DC bidirectional converter, the noise monitoring device is electrically connected to the DC bus through the second AC / DC bidirectional converter, the noise energy conversion device is electrically connected to the DC bus through the third AC / DC bidirectional converter, and the shaft belt generator is electrically connected to the DC bus through the fourth AC / DC bidirectional converter. The DC bus is used to collect electric energy generated by the vibration energy conversion device, the noise energy conversion device and the shaft belt generator, and is also used to power the noise monitoring device.

[0044] As a further optional embodiment, the engine power generation system also includes a lithium battery pack and a first DC bidirectional converter, the lithium battery pack is electrically connected to the DC bus through the first DC bidirectional converter, and the lithium battery pack is used to store the electrical energy collected by the DC bus or supply power to the DC bus.

[0045] Further as an optional embodiment, the engine power generation system also includes a mains power device and a second DC bidirectional converter, the mains power device is electrically connected to the DC bus through the second DC bidirectional converter, and the mains power device is used to store the electric energy collected by the DC bus or supply power to the DC bus.

[0046] The embodiment of the present invention adopts a DC networking method to integrate all the electric energy generated by the engine into the DC bus for unified allocation, reduce power transmission losses, improve system energy utilization efficiency, have good compatibility and scalability, and facilitate integrated application and unified power distribution with onboard devices such as energy storage systems and renewable energy power generation systems, so as to build a more flexible and diverse energy supply system.

[0047] The engine power generation system based on noise power generation and vibration power generation of the present invention is further described below in conjunction with a specific embodiment.

[0048] like Figure 2The figure shows a schematic diagram of energy and signal transmission of an engine power generation system based on noise power generation and vibration power generation provided by an embodiment of the present invention. The engine power generation system of the embodiment of the present invention includes a DC bus 1, a vibration reduction platform 2, a spring damper 3, a vibration energy collection device 4, an AC / DC bidirectional converter 5a, an AC / DC bidirectional converter 5b, an AC / DC bidirectional converter 5c, a DC bidirectional converter 6a, a DC bidirectional converter 6b, a lithium iron phosphate battery pack 7, an engine 8, an array noise collector 9, a noise comprehensive extraction and processing device 10, a high-power AC / DC bidirectional converter 11, a shaft generator 12, a Fresnel acoustic lens device 13, a noise sound collection speaker 14, a small Helmholtz resonant cavity 15, an integrated PVDF piezoelectric film 16, and a mains power device 17. The engine 8 can be a diesel engine or other engines such as a gas turbine. The vibration reduction platform 2 can reduce the vibration of the diesel engine by absorbing vibration energy through the spring damper 3. The vibration energy collection device 4 can convert the mechanical energy generated by the spring into electrical energy. The array noise collector 9 adopts a ring pickup collection method to clearly collect noise. The noise comprehensive extraction and processing device 10 can identify typical fault noise. The Fresnel acoustic lens device 13 can converge the noise at the center of the circle. The noise collecting speaker 14 can limit the noise to a certain space. The small Helmholtz resonance cavity 15 can enhance the noise intensity. The integrated PVDF piezoelectric film 16 can convert the noise vibration mechanical energy into electrical energy.

[0049] In terms of noise monitoring, when the engine 8 is working, a certain amount of noise is generated. The engine 8 is surrounded by a container-type Fresnel acoustic lens device 13. Based on the Fresnel acoustic lens principle, the Fresnel acoustic lens device 13 can gradually gather the noise at the center of the circle. The noise gathered by the Fresnel acoustic lens device 13 at the center of the circle is collected by the noise collecting speaker 14, and then the noise is transmitted to the small Helmholtz resonance cavity 15 to further enhance the noise. At this time, the array noise collector 9 collects the enhanced engine noise, converts it into a clear signal, and transmits it to the noise comprehensive extraction and processing device 10 to extract and analyze the signal, diagnose engine faults through abnormal noise signals, and is connected to the DC bus 1 for power supply.

[0050] In terms of noise power generation, when the engine 8 is working, a certain amount of noise is generated. By using a container-type Fresnel acoustic lens device 13 to surround the engine 8, the Fresnel acoustic lens device 13 is based on the Fresnel acoustic lens principle and can gradually gather the noise at the center of the circle. The noise gathered by the Fresnel acoustic lens device 13 at the center of the circle is collected by the noise collecting speaker 14, and then the enhanced noise is transmitted to the integrated PVDF piezoelectric film 16. The integrated PVDF piezoelectric film 16 generates vibration, converts the vibration mechanical energy into electrical energy, and then integrates the generated electrical energy into the DC bus 1 through the AC / DC bidirectional converter 5c.

[0051] In terms of vibration power generation, when the engine 8 is working, vibration is generated. The engine 8 is equipped with a vibration reduction platform 2. While the vibration reduction platform reduces the vibration of the engine 8, the spring shock absorber 3 inside it works. The vibration energy collection device 4 converts the mechanical energy generated by the spring shock absorber 3 when it is working into electrical energy, and integrates the generated energy into the DC bus 1 through the AC / DC bidirectional converter 5a.

[0052] In terms of the integrated DC networking system, the noise energy and vibration energy generated by the engine 8 when working are respectively incorporated into the DC bus 1 through the AC / DC bidirectional converters 5a and 5c. The shaft-belt generator 12 incorporates the mechanical energy generated by the engine 8 into the DC bus 1 through the high-power AC / DC bidirectional converter 11. The lithium iron phosphate battery pack 7 and the mains equipment 17 are incorporated into the DC bus 1 through the DC bidirectional converter 6a, which can supply power or store electrical energy. At the same time, the DC bus 1 can provide electrical energy to the array noise collector 9 and the noise comprehensive extraction and processing device 10 through the AC / DC bidirectional converter 5b.

[0053] Reference Figure 3 The embodiment of the present invention provides a control method for an engine power generation system based on noise power generation and vibration power generation, which is used to be executed by the above-mentioned engine power generation system based on noise power generation and vibration power generation, and includes the following steps:

[0054] S101, absorbing vibration energy of the engine by a vibration reduction device, and converting the vibration energy absorbed by the vibration reduction device into electrical energy by a vibration energy conversion device;

[0055] S102, gathering the noise of the engine by means of a Fresnel acoustic lens device, performing fault monitoring on the engine according to the noise gathered by the Fresnel acoustic lens device by means of a noise monitoring device, and converting the noise gathered by the Fresnel acoustic lens device into electrical energy by means of a noise energy conversion device;

[0056] S103, converting the mechanical energy of the engine into electrical energy through a shaft generator;

[0057] S104, collecting electric energy generated by the vibration energy conversion device, the noise energy conversion device and the shaft belt generator through the DC bus, and supplying power to the noise monitoring device through the DC bus.

[0058] The contents of the above system embodiments are all applicable to the present method embodiments. The functions specifically implemented by the present method embodiments are the same as those of the above system embodiments, and the beneficial effects achieved are also the same as those achieved by the above system embodiments.

[0059] It should be appreciated that embodiments of the present invention may be implemented or enforced by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer-readable memory. The above methods may be implemented in a computer program using standard programming techniques, including a non-transitory computer-readable storage medium configured with a computer program, wherein the storage medium so configured causes the computer to operate in a specific and predefined manner, according to the methods and drawings described in the specific embodiments. Each program may be implemented in a high-level procedural or object-oriented programming language to communicate with a computer system. However, if desired, the program may be implemented in an assembly or machine language. In any case, the language may be a compiled or interpreted language. In addition, the program may be run on a programmed dedicated integrated circuit for this purpose.

[0060] Furthermore, the operations of the processes described herein may be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes described herein (or variations and / or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications) that is executed collectively on one or more processors, by hardware, or a combination thereof. The computer programs described above include a plurality of instructions that may be executed by one or more processors.

[0061] Further, the above method can be implemented in any type of computing platform that is operably connected to a suitable computer, including but not limited to a personal computer, a minicomputer, a mainframe, a workstation, a network or distributed computing environment, a separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, etc. Various aspects of the present invention can be implemented in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, an optical read and / or write storage medium, a RAM, a ROM, etc., so that it can be read by a programmable computer, and when the storage medium or device is read by the computer, it can be used to configure and operate the computer to perform the process described herein. In addition, the machine-readable code, or a portion thereof, can be transmitted via a wired or wireless network. When such media includes instructions or programs that implement the steps described above in conjunction with a microprocessor or other data processor, the invention described herein includes these and other different types of non-transitory computer-readable storage media. When programmed according to the methods and techniques described in the present invention, the present invention also includes the computer itself.

[0062] The computer program can be applied to input data to perform the functions described herein, thereby converting the input data to generate output data stored in a non-volatile memory. The output information can also be applied to one or more output devices such as a display. In a preferred embodiment of the present invention, the converted data represents physical and tangible objects, including specific visual depictions of physical and tangible objects produced on the display.

[0063] The above is only a preferred embodiment of the present invention. The present invention is not limited to the above implementation. As long as the technical effect of the present invention is achieved by the same means, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of protection of the present invention. Within the scope of protection of the present invention, its technical scheme and / or implementation method may have various modifications and changes.

Claims

1. An engine power generation system based on noise power generation and vibration power generation, characterized in that: The invention comprises an engine, a vibration reduction device, a vibration energy conversion device, a Fresnel acoustic lens device, a noise energy conversion device, a noise monitoring device, a shaft-belt generator and a DC bus. The vibration reduction device is used to absorb the vibration energy of the engine. The vibration energy conversion device is used to convert the vibration energy absorbed by the vibration reduction device into electric energy. The Fresnel acoustic lens device is used to gather the noise of the engine. The noise energy conversion device is used to convert the noise gathered by the Fresnel acoustic lens device into electric energy. The noise monitoring device is used to perform fault monitoring on the engine according to the noise gathered by the Fresnel acoustic lens device. The shaft-belt generator is used to generate electric energy under the drive of the engine. The vibration energy conversion device, the noise energy conversion device, the noise monitoring device and the shaft-belt generator are all electrically connected to the DC bus.

2. The engine power generation system based on noise power generation and vibration power generation according to claim 1, characterized in that: The vibration reduction device comprises a vibration reduction platform and a spring vibration reduction device. The vibration reduction platform is installed at the bottom of the generator. A plurality of spring vibration reduction devices are arranged on the vibration reduction platform. The spring vibration reduction devices are drivingly connected to the outer shell of the generator.

3. The engine power generation system based on noise power generation and vibration power generation according to claim 2, characterized in that: The vibration energy conversion device is an electromagnetic vibration energy collection device, which is used to convert the mechanical energy of the spring shock absorber into electrical energy through electromagnetic induction.

4. The engine power generation system based on noise power generation and vibration power generation according to claim 1, characterized in that: The Fresnel acoustic lens device comprises a box and a Fresnel acoustic lens, wherein the box wraps the engine, the Fresnel acoustic lens is arranged on the inner surface of the box, and the Fresnel acoustic lens is used to converge the noise of the engine to the center position of the Fresnel acoustic lens.

5. The engine power generation system based on noise power generation and vibration power generation according to claim 4, characterized in that: The noise energy conversion device includes a noise collecting horn, a Helmholtz resonance cavity and an integrated PVDF piezoelectric film. The sound wave inlet of the noise collecting horn is arranged at the center position of the Fresnel acoustic lens, the sound wave outlet of the noise collecting horn is connected with the sound wave inlet of the Helmholtz resonance cavity, the integrated PVDF piezoelectric film is arranged at the sound wave outlet of the Helmholtz resonance cavity, the integrated PVDF piezoelectric film is electrically connected to the DC bus, the noise collecting horn is used to collect the noise converged by the Fresnel acoustic lens into the Helmholtz resonance cavity, the Helmholtz resonance cavity is used to strengthen the noise, and the integrated PVDF piezoelectric film is deformed under the action of noise, thereby converting the energy carried by the noise into electrical energy.

6. The engine power generation system based on noise power generation and vibration power generation according to claim 5, characterized in that: The noise monitoring device includes an array noise collector and a noise comprehensive extraction and processing device. The array noise collector is arranged at the sound wave outlet of the Helmholtz resonance cavity. The noise comprehensive extraction and processing device is connected to the array noise collector. The noise comprehensive extraction and processing device is also electrically connected to the DC bus. The array noise collector is used to convert the noise enhanced by the Helmholtz resonance cavity into a sound vibration signal. The noise comprehensive extraction and processing device is used to perform signal analysis on the sound vibration signal to obtain the operating status of the engine.

7. The engine power generation system based on noise power generation and vibration power generation according to claim 1, characterized in that: The engine power generation system also includes a first AC / DC bidirectional converter, a second AC / DC bidirectional converter, a third AC / DC bidirectional converter and a fourth AC / DC bidirectional converter. The vibration energy conversion device is electrically connected to the DC bus through the first AC / DC bidirectional converter, the noise monitoring device is electrically connected to the DC bus through the second AC / DC bidirectional converter, the noise energy conversion device is electrically connected to the DC bus through the third AC / DC bidirectional converter, and the shaft-belt generator is electrically connected to the DC bus through the fourth AC / DC bidirectional converter. The DC bus is used to collect the electric energy generated by the vibration energy conversion device, the noise energy conversion device and the shaft-belt generator, and is also used to power the noise monitoring device.

8. The engine power generation system based on noise power generation and vibration power generation according to claim 1, characterized in that: The engine power generation system also includes a lithium battery pack and a first DC bidirectional converter. The lithium battery pack is electrically connected to the DC bus through the first DC bidirectional converter. The lithium battery pack is used to store the electrical energy collected by the DC bus or to supply power to the DC bus.

9. The engine power generation system based on noise power generation and vibration power generation according to claim 1, characterized in that: The engine power generation system also includes a mains power device and a second DC bidirectional converter, wherein the mains power device is electrically connected to the DC bus through the second DC bidirectional converter, and the mains power device is used to store the electric energy collected by the DC bus or to supply power to the DC bus.

10. A control method for an engine power generation system based on noise power generation and vibration power generation, for execution by the engine power generation system based on noise power generation and vibration power generation according to any one of claims 1 to 9, characterized in that: The following steps are involved: The vibration energy of the engine is absorbed by the vibration reduction device, and the vibration energy absorbed by the vibration reduction device is converted into electrical energy by the vibration energy conversion device; The noise of the engine is gathered by the Fresnel acoustic lens device, the engine is monitored for faults by the noise monitoring device according to the noise gathered by the Fresnel acoustic lens device, and the noise energy conversion device is used to convert the noise gathered by the Fresnel acoustic lens device into electrical energy; converting the mechanical energy of the engine into electrical energy via the shaft generator; The electrical energy generated by the vibration energy conversion device, the noise energy conversion device and the shaft generator is collected through the DC bus, and the noise monitoring device is powered through the DC bus.

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