Multi-channel synchronous sound signal acquisition and fault positioning terminal
By using a multi-channel synchronous acoustic signal acquisition and fault location terminal, integrated circuit board and module, high-precision noise analysis and fault location are achieved, solving the problem of insufficient measurement accuracy of existing terminals and supporting rapid and low-cost large-scale applications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING HUAYUAN XINGTONG TECH CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-04-28
AI Technical Summary
Existing acoustic signal acquisition terminals in substations suffer from insufficient measurement accuracy, low precision, inability to remotely transmit data, and lack of noise analysis functions, making it difficult to meet the requirements for high precision and intelligence. Furthermore, their high cost limits their large-scale application.
Design a multi-channel synchronous acoustic signal acquisition and fault location terminal, comprising an integrated circuit board, a multi-channel synchronous acquisition module, a processing module, a Beidou positioning and timing module, a 5G communication module, and a WiFi module. Through digital signal processing and machine learning algorithms, noise analysis and fault location are achieved, supporting high-precision acquisition and remote transmission.
It achieves high-precision noise analysis and fault location, reduces manpower requirements, lowers costs, and supports rapid and large-scale applications.
Smart Images
Figure CN224175949U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a terminal, specifically a multi-channel synchronous acoustic signal acquisition and fault location terminal, belonging to the field of acquisition terminal technology. Background Technology
[0002] To address the environmental noise that may be generated at the plant boundary during the operation of power grid equipment, especially substation equipment, it is necessary to further strengthen environmental protection supervision and reduce the impact of noise on the ecological environment and residents. Currently, the main method is manual periodic measurement, which is labor-intensive, time-consuming, and lacks accuracy. Moreover, the noise monitoring devices commonly available on the market are expensive and require additional power lines. All of these factors limit the large-scale, rapid, and low-cost application of sound signal acquisition terminals in substations. Therefore, it is necessary to use sound signal acquisition terminals for noise monitoring. Using substation sound signal acquisition terminals can free up the human and material resources occupied by conducting general noise measurements.
[0003] Currently, most widely used sound signal acquisition terminals on the market are general-purpose decibel meters, which have many limitations. Functionally, they can only perform basic decibel measurements, lacking network management capabilities, making remote data transmission and centralized control impossible. They also lack noise analysis and calculation functions, making it difficult to perform in-depth analysis of the acquired sound signals. In terms of performance, general-purpose decibel meters have low measurement accuracy, are prone to large errors, and have insufficient sampling rates, making it difficult to capture subtle changes in complex acoustic environments. Therefore, they cannot meet the needs of high-precision, intelligent sound signal acquisition and analysis. To address this, a multi-channel synchronous sound signal acquisition and fault location terminal is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a multi-channel synchronous acoustic signal acquisition and fault location terminal to solve one of the problems mentioned in the background art.
[0005] This utility model is implemented by the following technical solution: a multi-channel synchronous acoustic signal acquisition and fault location terminal, including a housing, and a main component is installed inside the housing. The main component includes a circuit board, two mounting seats, two mounting columns, a mounting plate and two sliding seats;
[0006] Two mounting bases are symmetrically fixedly connected to both sides of the inner wall of the housing. The sliding base is slidably connected to the inside of the mounting base. The mounting plate is fixedly connected to the opposite surfaces of the two sliding bases. The mounting column is symmetrically fixedly connected to the upper surface of the mounting plate. The circuit board is mounted on the top of the mounting column and fixedly connected by screws. The circuit board is equipped with a power module, a multi-channel synchronous acquisition module, an ADC module, a processing module, a Beidou positioning and timing module, a G communication module, and a WiFi module.
[0007] As a further preferred embodiment of this technical solution, the inner bottom wall of the mounting base is symmetrically and fixedly connected with two positioning posts.
[0008] As a further preferred embodiment of this technical solution: two positioning holes are symmetrically formed inside the sliding seat, and the positioning pin is inserted into the inside of the positioning hole.
[0009] As a further preferred embodiment of this technical solution: the outer wall of the positioning post is threaded with a nut, the nut being fitted against the upper surface of the sliding seat and defining the position of the sliding seat.
[0010] As a further preferred embodiment of this technical solution: the top of the housing is fixedly connected to a top cover by screws, a sealing ring is embedded in the bottom of the outer side wall of the top cover, and the bottom of the top cover is inserted into the interior of the housing.
[0011] As a further preferred embodiment of this technical solution: an antenna is installed on one side of the housing.
[0012] As a further preferred embodiment of this technical solution: a battery mounting cover is fixedly connected to the inner rear wall of the housing, and the battery mounting cover is located below the circuit board.
[0013] As a further preferred embodiment of this technical solution: an indicator light is installed on the front surface of the housing.
[0014] Advantages of this utility model:
[0015] 1. This utility model collects sound signals from the power grid in real time through a microphone and transmits the analog electrical signals to a multi-channel synchronous acquisition module. The processing module uses digital signal processing algorithms to calculate noise intensity and analyze the noise distribution of different frequency components. Through machine learning or pattern recognition algorithms, it compares the characteristics of the collected sound signals with a pre-stored normal noise model to identify abnormal noise. When abnormal noise is detected, the processing module uses the time difference information of the sound signals collected from the multi-channel acquisition and the time synchronization information provided by the Beidou positioning and timing module, combined with known parameters such as microphone position and sound speed, to calculate the fault location through algorithms such as triangulation. Then, the analyzed noise intensity, abnormal noise characteristics, and fault location information are packaged and transmitted to an external monitoring center.
[0016] 2. This utility model has a high degree of integration, is easy to install and use. Through high-precision synchronous sampling and combined with noise analysis algorithms, it can analyze the noise intensity, abnormal noise and fault location in the power grid. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is an exploded view of the structure of this utility model;
[0020] Figure 3 This is a schematic diagram showing the installation position of the mounting base of this utility model;
[0021] Figure 4 This is a schematic diagram of the sliding seat structure of this utility model.
[0022] In the diagram: 101. Main component; 11. Housing; 12. Circuit board; 13. Power module; 14. Mounting base; 15. Multi-channel synchronous acquisition module; 16. ADC module; 17. Processing module; 18. Beidou positioning and timing module; 19. 5G communication module; 20. WiFi module; 21. Positioning post; 22. Mounting post; 23. Mounting plate; 24. Sliding seat; 25. Positioning hole; 26. Nut; 31. Top cover; 32. Sealing ring; 33. Antenna; 34. Battery mounting cover; 35. Indicator light. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Example
[0025] Please see Figures 1-4 This utility model provides a technical solution: a multi-channel synchronous acoustic signal acquisition and fault location terminal, including a housing 11, and a main component 101 installed inside the housing 11. The main component 101 includes a circuit board 12, two mounting seats 14, two mounting posts 22, a mounting plate 23 and two sliding seats 24.
[0026] Two mounting bases 14 are symmetrically fixedly connected to the inner walls of the housing 11 on both sides. A sliding base 24 is slidably connected to the inside of the mounting base 14. A mounting plate 23 is fixedly connected to the opposite sides of the two sliding bases 24. A mounting post 22 is symmetrically fixedly connected to the upper surface of the mounting plate 23. A circuit board 12 is installed on the top of the mounting post 22 and fixedly connected by screws. A power module 13, a multi-channel synchronous acquisition module 15, an ADC module 16, a processing module 17, a Beidou positioning and timing module 18, a 5G communication module 19, and a WiFi module 20 are installed on the circuit board 12. An antenna 33 is installed on one side of the housing 11.
[0027] The processing module 17 is used to perform complex algorithm processing and analysis on the collected acoustic signal data, including noise intensity calculation, abnormal noise feature extraction and identification, and fault location determination based on acoustic signal features and positioning algorithm. At the same time, it coordinates and manages the work of various modules in the terminal and handles data interaction with external communication.
[0028] Processing module 17, based on digital signal processing technology, uses algorithms such as Fast Fourier Transform (FFT) to convert time-domain acoustic signals into frequency-domain signals for analyzing the noise intensity of different frequency components. Through machine learning or pattern recognition algorithms, it learns and compares noise characteristics to identify normal and abnormal noise. In terms of fault location, it utilizes information such as the time difference of multi-channel acquired acoustic signals, combined with known microphone positions and sound speed parameters, to calculate the fault location using algorithms such as triangulation.
[0029] The power module 13 is used to regulate, filter and convert the DC power supplied by the lithium battery, so as to provide a stable and appropriate power supply voltage for each module in the terminal and ensure that each module works normally.
[0030] The multi-channel synchronous acquisition module 15 is used to synchronously acquire and preprocess the sound signals acquired by multiple microphones, convert the analog sound signals into digital signals, and transmit the processed data to the processing module 17. The microphones are installed in the power station to collect the noise generated by the power station equipment during operation.
[0031] The ADC module 16 is used to convert the analog electrical signal output from the microphone into a digital signal for subsequent digital signal processing and analysis.
[0032] The Beidou positioning and timing module 18 is used to provide the terminal with accurate location information and time synchronization information. The location information is used to determine the installation location of the terminal in the power station, while the time synchronization information ensures that the acoustic signals collected by multiple channels have accurate time reference, which is crucial for fault location.
[0033] The 5G communication module 19 and the WiFi module 20 are used to enable data communication between the terminal and the external monitoring center or other devices. The 5G communication module 19 provides high-speed and stable remote communication capabilities, which are suitable for transmitting the collected and analyzed data to the remote monitoring center in real time. The WiFi module 20 provides short-range wireless communication capabilities, which are convenient for equipment configuration, data transmission and debugging inside the power plant.
[0034] In this embodiment, specifically: two positioning posts 21 are symmetrically fixedly connected to the inner bottom wall of the mounting base 14, and two positioning holes 25 are symmetrically opened inside the sliding base 24. The positioning posts 21 are inserted into the inside of the positioning holes 25, and the outer side wall of the positioning posts 21 is threaded with nuts 26. The nuts 26 fit against the upper surface of the sliding base 24 and limit the position of the sliding base 24. Thus, through the cooperation of the positioning posts 21, positioning holes 25, nuts 26 and other structures, the mounting plate 23 can be quickly disassembled to remove the circuit board 12.
[0035] In this embodiment, specifically: a top cover 31 is fixedly connected to the top of the housing 11 by screws, a sealing ring 32 is embedded in the bottom of the outer side wall of the top cover 31, and the bottom of the top cover 31 is inserted into the inside of the housing 11, thereby ensuring the overall sealing performance of the terminal through the sealing ring 32.
[0036] In this embodiment, specifically: a battery mounting cover 34 is fixedly connected to the inner rear wall of the housing 11. The battery mounting cover 34 is located below the circuit board 12. A lithium battery is installed inside the battery mounting cover 34. The lithium battery is used to provide an independent power supply for the entire terminal, ensuring that the terminal can work continuously without external power supply, thereby improving the portability and flexibility of the terminal.
[0037] The lithium battery is connected to the input terminal of the power module 13 via wires. The power module 13 provides power to the processing module 17, the multi-channel synchronous acquisition module 15, the Beidou positioning and timing module 18, the 5G communication module 19, the WiFi module 20, etc., through different voltage output lines according to the needs of each module.
[0038] The sound signal collected by the microphone is connected to the corresponding channel input interface of the multi-channel synchronous acquisition module 15 via an audio cable;
[0039] The multi-channel synchronous acquisition module 15 sends the processed digital audio signal to the processing module 17;
[0040] The BeiDou positioning and timing module 18 transmits the location and time information to the processing module 17;
[0041] The processing module 17 communicates with the 5G communication module 19 and the WiFi module 20 to control data transmission and module configuration; at the same time, the 5G communication module 19 and the WiFi module 20 interact with the processing module 17.
[0042] The model of processing module 17 is HY-6678A;
[0043] In this utility model, the power module 13, the multi-channel synchronous acquisition module 15, the ADC module 16, the processing module 17, the Beidou positioning and timing module 18, the 5G communication module 19, the antenna 33, and the WiFi module 20 are all existing technologies. Therefore, their internal structure, working principle, connection, and control methods will not be described in detail.
[0044] In this embodiment, specifically: an indicator light 35 is installed on the front surface of the housing 11 to display the working status, and a connection terminal is also installed on the front surface of the housing 11.
[0045] In terms of working principle or structural principle, when the terminal is powered on, the power module 13 provides a stable power supply to each module, the processing module 17 performs self-test and initialization, loads necessary programs and algorithms, the multi-channel synchronous acquisition module 15 is configured and initialized, and parameters such as sampling rate and synchronization clock are set; the Beidou positioning and timing module 18 is started, searches for and locks Beidou satellite signals, and obtains initial position and time information; the 5G communication module 19 and WiFi module 20 perform network search and connection, and establish a communication link with the external monitoring center or local network.
[0046] A microphone collects sound signals from the power grid in real time and transmits the analog electrical signals to a multi-channel synchronous acquisition module 15. The multi-channel synchronous acquisition module 15 synchronously samples and quantizes the analog sound signals from multiple channels according to a preset sampling rate and synchronization clock, converting them into digital signals and performing preliminary preprocessing. The processed digital sound signals are then transmitted to a processing module 17 via a high-speed data bus. The processing module 17 receives the digital sound signals transmitted from the multi-channel synchronous acquisition module 15, uses digital signal processing algorithms to calculate noise intensity, analyzes the noise distribution of different frequency components, and uses machine learning or pattern recognition algorithms to compare the features of the collected sound signals with pre-stored... The system compares normal noise models to identify abnormal noise. When abnormal noise is detected, the processing module 17 uses the time difference information of the acoustic signals collected from multiple channels and the time synchronization information provided by the Beidou positioning and timing module 18, combined with known parameters such as microphone position and sound speed, to calculate the fault location using algorithms such as triangulation. The processing module 17 packages the analyzed noise intensity, abnormal noise characteristics, and fault location information and transmits the data to the external monitoring center in real time through the 5G communication module 19 or WiFi module 20 according to the preset communication strategy. At the same time, some data can also be stored locally in the terminal for subsequent query and analysis.
[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-channel synchronous acoustic signal acquisition and fault location terminal, characterized in that, Includes a housing (11), inside which a main body assembly (101) is installed, the main body assembly (101) including a circuit board (12), two mounting bases (14), two mounting posts (22), a mounting plate (23) and two sliding bases (24); Two mounting bases (14) are symmetrically fixedly connected to the inner walls of the housing (11). The sliding base (24) is slidably connected to the inside of the mounting base (14). The mounting plate (23) is fixedly connected to the opposite surfaces of the two sliding bases (24). The mounting column (22) is symmetrically fixedly connected to the upper surface of the mounting plate (23). The circuit board (12) is installed on the top of the mounting column (22) and fixedly connected by screws. The circuit board (12) is equipped with a power module (13), a multi-channel synchronous acquisition module (15), an ADC module (16), a processing module (17), a Beidou positioning and timing module (18), a 5G communication module (19), and a WiFi module (20).
2. The multi-channel synchronous acoustic signal acquisition and fault location terminal according to claim 1, characterized in that, The inner bottom wall of the mounting base (14) is symmetrically fixedly connected with two positioning columns (21).
3. The multi-channel synchronous acoustic signal acquisition and fault location terminal according to claim 2, characterized in that, The sliding seat (24) has two symmetrically arranged positioning holes (25) inside, and the positioning pin (21) is inserted into the positioning hole (25).
4. The multi-channel synchronous acoustic signal acquisition and fault location terminal according to claim 3, characterized in that, The outer wall of the positioning post (21) is threaded with a nut (26), which fits against the upper surface of the sliding seat (24) and defines the position of the sliding seat (24).
5. A multi-channel synchronous acoustic signal acquisition and fault location terminal according to claim 1, characterized in that, The top of the housing (11) is fixedly connected to a top cover (31) by screws. A sealing ring (32) is embedded in the bottom of the outer side wall of the top cover (31). The bottom of the top cover (31) is inserted into the interior of the housing (11).
6. A multi-channel synchronous acoustic signal acquisition and fault location terminal according to claim 5, characterized in that, An antenna (33) is mounted on one side of the housing (11).
7. A multi-channel synchronous acoustic signal acquisition and fault location terminal according to claim 6, characterized in that, A battery mounting cover (34) is fixedly connected to the inner rear wall of the housing (11), and the battery mounting cover (34) is located below the circuit board (12).
8. A multi-channel synchronous acoustic signal acquisition and fault location terminal according to claim 1, characterized in that, An indicator light (35) is mounted on the front surface of the housing (11).