Sound insulation barrier structure

Abstract

The sound insulation barrier structure comprises a modular wallboard, a noise acquisition module, a noise signal processing module and a communication module, wherein the noise acquisition module and the communication module are electrically connected with the noise signal processing module; the modular wallboard is provided with a cavity, and the noise acquisition module and the noise signal processing module are both installed in the cavity of the modular wallboard. The sound insulation barrier structure is installed in a noise field, the position where the noise collection module is located serves as a monitoring point, the place where noise needs to be controlled serves as a concern point, and the noise signal processing module is used for determining the noise state according to position data between the monitoring point and a sound source and position data between the monitoring point and the concern point. After the noise state reaches the set threshold value, information is sent through the communication module, the sound insulation barrier structure is simple and convenient to arrange, noise monitoring of any concern point in the noise field boundary is achieved by means of the sound insulation barrier structure, and convenience and effectiveness of field boundary noise monitoring are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of noise monitoring, and in particular provides a sound insulation barrier structure. Background Art

[0002] In order to meet the environmental protection requirements for noise monitoring of the environment around substations / converter stations, it is necessary to effectively monitor the noise of substations / converter stations.

[0003] Substations / converter stations are usually open scenes, and noise monitoring is mainly focused on field boundary noise. In the field boundary environment of substations / converter stations, considering the protection and safety requirements of equipment in substations / converter stations, it is difficult to monitor noise at any location in the field boundary environment, and the setting of noise monitoring devices is not convenient, which in turn affects the effective monitoring of noise. Utility Model Content

[0004] In order to solve the problem of inconvenience in monitoring boundary noise in the prior art, the utility model proposes a sound insulation barrier structure, which includes a modular wall panel, a noise collection module, a noise signal processing module and a communication module, wherein the noise collection module and the communication module are both electrically connected to the noise signal processing module; the modular wall panel has a chamber, and the noise collection module and the noise signal processing module are both installed in the chamber of the modular wall panel; wherein the position where the noise collection module is located is taken as a monitoring point, and the location where noise needs to be controlled is taken as a focus point, the noise signal processing module is used to determine the noise state according to the position data between the monitored point and the sound source and the focus point respectively, and send information through the communication module after the noise state reaches a set threshold.

[0005] Preferably, the noise collection module is installed in a reserved hole of the modular wall panel opposite to the noise source.

[0006] Preferably, the sound insulation barrier structure further includes a partition and a power supply module, the partition divides the chamber into a first chamber and a second chamber, the noise collection module and the noise signal processing module are both located in the first chamber, and the power supply module is located in the second chamber.

[0007] Preferably, the partition is arranged in a horizontal direction, and in a state where the installation is completed, the first chamber is located above the second chamber, and the reserved hole is located in the top area of ​​the first chamber.

[0008] Preferably, the power supply module comprises an energy storage battery and a photovoltaic panel electrically connected to the energy storage battery, the energy storage battery is located in the second chamber, and the photovoltaic panel is fixed on the outer side wall of the modular wall panel.

[0009] Preferably, the power generation of the photovoltaic panel in one day is at least 30% of the storage capacity of the energy storage battery.

[0010] Preferably, the sound insulation barrier structure further comprises a lighting lamp, which is mounted on the outer side wall of the modular wall panel.

[0011] Preferably, the sound insulation barrier structure further comprises an indicator light, which is mounted on the outer side wall of the modular wall panel.

[0012] Preferably, the noise signal processing module comprises: a signal conversion submodule, a data analysis submodule and a data storage submodule, and the signal conversion submodule, the data analysis submodule and the data storage submodule are all integrated and fixed on a circuit board, and the circuit board is installed in the first chamber.

[0013] Preferably, the communication module is mounted on an outer side wall of the modular wall panel.

[0014] Preferably, the sound insulation barrier structure further includes a thermal insulation module, and the thermal insulation module is located in the second chamber.

[0015] Preferably, the thermal insulation module is thermal insulation cotton or an electric heating body.

[0016] Based on the same inventive concept, the utility model also provides a monitoring system for the field boundary noise of the power transmission and transformation equipment, which includes the above-mentioned sound insulation barrier structure, and the above-mentioned sound insulation barrier structure is located within the field boundary noise of the power transmission and transformation equipment.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The sound barrier structure of the utility model includes a modular wall panel, a noise collection module, a noise signal processing module and a communication module, and the noise collection module and the communication module are both electrically connected to the noise signal processing module; the modular wall panel has a chamber, and the noise collection module and the noise signal processing module are both installed in the chamber of the modular wall panel. The installation and arrangement of the sound barrier structure in the noise field is simple and convenient, and the location of the noise collection module in the sound barrier structure is used as the monitoring point, and the location where the noise needs to be controlled is the focus point. The noise signal processing module is used to determine the noise state according to the position data between the monitored point and the sound source and the focus point respectively, and send information through the communication module after the noise state reaches the set threshold. The sound barrier structure is simple and convenient to arrange, and the sound barrier structure is used to realize the effective monitoring of the noise of any focus point in the noise field, which greatly improves the convenience and effectiveness of the field noise monitoring.

[0019] In addition, the modular design of the sound barrier structure is conducive to mass production, and assembly and disassembly are simple and convenient. The design of photovoltaic panels and storage batteries can provide a steady supply of electricity for the noise collection module, noise signal processing module and communication module in the sound barrier structure, ensuring its long-term stable operation. Among them, the noise collection module can realize real-time noise collection at the location of the sound barrier structure; the data storage submodule of the noise signal processing can record and store the monitored noise data in real time for easy calculation and call; the data analysis submodule of the noise signal processing module can realize real-time monitoring of noise points at any location within the substation boundary and send noise warning information according to the set monitoring method. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of one side of the overall structure of the sound insulation barrier structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the other side of the overall structure of the sound insulation barrier structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the internal structure of the sound insulation barrier structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the effect of ground reflection of sound waves on sound propagation in the present invention;

[0024] Figure 5 This is a schematic diagram of the effect of the sound barrier structure of the utility model on sound propagation.

[0025] Figure numerals: 1. Cover plate; 11. Second reserved hole; 2. Shell; 21. Partition plate; 211. Wire hole; 3. Photovoltaic panel; 4. Noise collection module; 51. Lighting lamp; 52. Indicator light; 6. Communication module; 7. Noise signal processing module; 8. Energy storage battery; 9. Insulation module. DETAILED DESCRIPTION

[0026] Example 1

[0027] The embodiment of the utility model provides a sound insulation barrier structure, which includes a modular wall panel, a noise collection module 4, a noise signal processing module 7, a communication module 6 and a power supply module. The power supply module, the noise collection module 4 and the communication module 6 are all electrically connected to the noise signal processing module 7; the modular wall panel has a chamber, and the power supply module, the noise collection module 4 and the noise signal processing module 7 are all installed in the chamber of the modular wall panel.

[0028] Specifically, Figures 1 to 3As shown, the modular wall panel in this embodiment includes a shell 2 and a cover plate 1, the cover plate 1 and the shell 2 are buckled and installed to form a chamber, the shell 2 is provided with a first reserved hole, and the cover plate 1 is provided with a second reserved hole 11. The sound insulation barrier structure also includes a partition 21 located in the chamber, the partition 21 divides the chamber into a first chamber and a second chamber, the noise collection module 4 and the noise signal processing unit are both located in the first chamber, and the power supply module is located in the second chamber.

[0029] Continue reading Figures 1 to 3 When the sound insulation barrier structure is installed, the partition 21 is arranged in the horizontal direction, the first chamber is located above the second chamber, and the first reserved hole and the second reserved hole 11 are both located in the top area of ​​the first chamber.

[0030] Continue reading Figures 1 to 3 The power supply module in this embodiment includes an energy storage battery 8 and a photovoltaic panel 3 electrically connected to the energy storage battery 8, the energy storage battery 8 is located in the second chamber, and the photovoltaic panel 3 is fixed on the outer wall of the modular wall panel. Specifically, the photovoltaic panel 3 includes 16 solar panels arranged in a matrix on the surface of the housing 2.

[0031] It is understandable that the noise collection module 4 uses an acoustic wave sensor, which needs to be oriented toward the sound source to collect acoustic waves, and the photovoltaic panel 3 needs to be set toward the sunlight. When the noise source is opposite to the photovoltaic panel 3 on the sound barrier structure, the noise collection module 4 is installed at the position of the first reserved hole on the shell 2; when the noise source is opposite to the cover plate 1 on the sound barrier structure, the noise collection module 4 is installed at the position of the second reserved hole 11 on the cover plate 1. According to the actual installation position of the sound barrier structure, the noise collection module 4 is installed in the reserved hole of the modular wall panel opposite to the noise source, so that the sound barrier structure can simultaneously meet the setting requirements of the photovoltaic panel 3 and the noise collection module 4 in the noise field.

[0032] Continue reading Figure 1 The sound insulation barrier structure in this embodiment further includes a heat preservation module 9, which is located in the second chamber. Specifically, the heat preservation module 9 is fixed against one side of the energy storage battery 8, and the heat preservation module 9 uses heat preservation cotton, which can ensure the battery operating temperature in a low temperature environment and avoid the performance degradation of the battery in a low temperature environment.

[0033] It should be noted that the heat preservation module 9 can also use an electric heating body electrically connected to the energy storage battery 8 to ensure the battery operating temperature in a low temperature environment through electric heating.

[0034] Continue reading Figure 1The sound barrier structure in this embodiment further includes a lighting lamp 51, which is installed on the outer wall of the modular wall panel. Specifically, the lighting lamp 51 is electrically connected to the energy storage battery 8, and the lighting lamp 51 uses an LED lamp or an induction lamp. A plurality of lighting lamps 51 are arranged and fixed below the photovoltaic panel 3 on the housing 2. When the sound barrier structure is inspected at night, the lighting lamp 51 can provide necessary lighting services for the maintenance personnel.

[0035] Continue reading Figure 1 The sound barrier structure in this embodiment also includes an indicator light 52, which is installed on the outer wall of the modular wall panel. Specifically, the indicator light 5 is arranged and fixed above the photovoltaic panel 3 on the housing 2, and the indicator light 52 uses an LED light with a different color from the lighting lamp 51, such as a red LED light. When a functional module in the sound barrier structure fails, the indicator light 52 lights up to facilitate maintenance personnel to quickly locate the specific position of the sound barrier structure on site, thereby reducing the time of finding the sound barrier structure.

[0036] Continue reading Figure 3 The noise signal processing unit includes a signal conversion module, a data analysis module and a data storage module, which are all integrated and fixed on a circuit board, and the circuit board is installed in the first chamber. Specifically, a wire hole 211 is provided on the partition 21, and the wires between the circuit board and the energy storage battery 8 pass through the wire hole 211 on the partition 21.

[0037] Continue reading Figure 2 In this embodiment, the communication module 6 is installed on the outer wall of the modular wall panel. Specifically, the communication module 6 is installed on the outer side of the cover plate 1. The communication module 6 is outside the cavity of the modular wall panel, which is more conducive to the communication module 6 to send or receive information. The communication module 6 uses any one of the local area network wifi, 2G network, 3G network, 4G network or 5G network communication.

[0038] Preferably, in this embodiment, the power generation of the photovoltaic panel 3 in one day is at least 30% of the storage capacity of the energy storage battery 8 .

[0039] Specifically, the power consumption of the sound insulation barrier structure is set to a, the power generation of the photovoltaic panel 3 is set to b, and the formula for evaluating the battery capacity requirement from the storage perspective is ba / 0.3; the formula for evaluating the battery capacity requirement from the perspective of power supply on n rainy days is a*n / 0.3, and the maximum value of the two evaluation values ​​is selected as a reference for selecting the capacity of the energy storage battery 8, so as to achieve the optimal design between the capacity of the energy storage battery 8 and the power generation of the photovoltaic panel 3, thereby simplifying the selection of the capacity of the energy storage battery 8.

[0040] When the sound barrier structure is in working state, the location of the noise collection module 4 is used as the monitoring point, and the location where the noise needs to be controlled is the focus point. The noise signal processing module 7 is used to determine the noise state according to the position data between the monitored point and the sound source and the focus point, and send information through the communication module 6 when the noise state reaches the set threshold. In this way, only the noise at the monitoring point is collected, and the noise signal processing module 7 can determine the noise state of the focus point and send information through the communication module 6, so as to realize real-time monitoring and early warning of noise points at any position in the noise field.

[0041] The specific implementation process includes:

[0042] Firstly, the location data of the sound source and the focus point on both sides of the monitoring point are obtained respectively;

[0043] Specifically, the sound barrier structure is installed on the top of the sound insulation wall within the noise field of the substation, the sound source is the noise generated in the substation, the location where the sound barrier structure is installed is used as the monitoring point, and the focus point is a location far away from the substation, such as a living area or a working area. The distance between the focus point and the sound source is greater than the distance between the monitoring point and the sound source.

[0044] like Figure 4 As shown, after the sound source emits sound waves, part of the sound waves propagate through the air directly to the point to be measured, and the other part of the sound waves are reflected by the ground to reach the point to be measured. In order to make the scheme complete, the utility model discloses the following calculation method for example, and of course other calculation methods can also be used.

[0045] The effect of ground reflection on sound propagation is calculated using the following formula:

[0046]

[0047] In the formula, Ref. is the effect of reflection on sound propagation, c is the speed of sound (340m / s), r' is the path of the reflected sound wave to the test point; r is the path of the direct sound wave to the test point, Δr is the difference between the path of the reflected sound wave to the test point and the path of the direct sound wave to the test point, Z is the ratio of the path of the reflected sound wave to the test point to the path of the direct sound wave to the test point, Δf is the bandwidth of the sound wave; fi is the center frequency of the octave of the sound wave.

[0048] After obtaining the position data of the sound source and the focus point, the sound pressure level of the monitoring point is calculated according to the position data between the monitoring point and the sound source, which is recorded as the first sound pressure level;

[0049] See also Figure 4 and Figure 5According to the position data between the monitoring point and the sound source, that is, under the condition that the position between the sound barrier structure and the sound source does not change, and only considering the influence of reflection on sound propagation, the calculation formula of the first sound pressure level at the monitoring point is:

[0050] SPL a =SWL+Dis.+Ref.+p+A

[0051] Where SPL a is the first sound pressure level, SWL is the sound power level of the sound source, Dis. is the influence of the distance from the sound source to the monitoring point, A is the weighting factor, and p is the correction constant. Among them, p is 6.

[0052] Then, the sound pressure level of the focus point is calculated based on the position data between the monitoring point, the sound source and the focus point, which is recorded as the second sound pressure level;

[0053] See also Figure 4 and Figure 5 According to the position data between the monitoring point, the sound source and the point of interest, that is, the sound barrier structure, the sound source position and the position between the points of interest do not change, and the influence of the sound barrier structure and air on the sound source dissipation is taken into account on the basis of the influence of reflection on sound propagation, the calculation formula for the second sound pressure level of the point of interest is:

[0054] SPL=SWL+Dis.+Ref.+Absorb.+A-IL

[0055] Where Absorb. is the effect of air on the sound source dissipation, which is generally related to the distance; IL is the effect of the sound barrier on sound propagation.

[0056] Among them, when the focus point is outside the sound shadow area of ​​the sound barrier, the calculation formula of IL is:

[0057]

[0058] In the formula, λ is the wavelength of the sound wave, R1 is the distance between the focus point and the monitoring point, R2 is the distance between the monitoring point and the focus point, and D is the distance between the sound source and the focus point.

[0059] like Figure 5 If the focus point 1 is located outside the sound shadow area of ​​the sound barrier, R1 is the distance between the focus point 1 and the monitoring point, R2 is the distance between the monitoring point and the sound source, D is the distance between the focus point 1 and the sound source, and H is the vertical projection distance of the monitoring point on the line connecting the focus point 1 and the sound source.

[0060] When the focus point is located in the sound shadow area of ​​the sound barrier structure, the calculation formula for the effect of the sound barrier on sound propagation is:

[0061]

[0062] Among them, C1=C2=1.

[0063] like Figure 5 The focus point 2 in the figure is located in the sound shadow area of ​​the sound barrier. According to the position data of the monitoring point, the sound source and the focus point 2, R1 is the distance between the focus point 2 and the monitoring point, R2 is the distance between the monitoring point and the sound source, D is the distance between the focus point 2 and the sound source, and H is the vertical projection distance of the monitoring point on the line connecting the focus point 2 and the sound source.

[0064] It should be noted that the above calculation formulas for Ref. and IL are existing formulas in acoustic theory.

[0065] Finally, according to the comparison result of the acquired actual sound pressure level of the monitoring point and the difference between the first sound pressure level and the second sound pressure level, it is determined to send the prompt information of the noise status of the focus point.

[0066] Specific:

[0067] The difference between the first sound pressure level of the sound wave at the monitoring point and the second sound pressure level at the point of interest is calculated as SPL a -SPL, denoted as ΔS;

[0068] Set the threshold of the focus point to e;

[0069] Get the actual sound pressure level at the monitoring point, denoted as SPLt;

[0070] If the actual sound pressure level of the monitoring point minus the difference is greater than the threshold, that is, SPLt-ΔS>e, a prompt message indicating that the noise status of the concerned point is "exceeding the standard" is sent out through the communication module 6;

[0071] If the actual sound pressure level at the monitoring point minus the difference is not greater than the threshold, that is, SPLt-ΔS<=e, no prompt information is sent.

[0072] Example 2

[0073] Based on the same inventive concept, an embodiment of the utility model also provides a monitoring system for the field boundary noise of a power transmission and transformation equipment. The monitoring system includes a sound insulation barrier structure in embodiment 1, and the sound insulation barrier structure is located within the field boundary noise of the power transmission and transformation equipment.

[0074] Specifically, a sound insulation wall is arranged around the power transmission and transformation equipment, and a plurality of sound insulation barrier structures are installed on the top of the sound insulation wall in sequence or at even intervals. The monitoring system also includes a remote server, and the communication module 6 of each sound insulation barrier structure communicates with the remote server.

[0075] It can be understood that after installing the sound insulation barrier structure on the sound insulation wall (i.e., sound barrier) within the noise field boundary, the position of the focus point is determined, and the position of the sound insulation barrier structure is used as the monitoring point. As long as the actual noise at the monitoring point is monitored, the difference between the first sound pressure level of the monitoring point and the second sound pressure level of the focus point calculated by associating the actual sound pressure level of the monitoring point can be used to monitor the noise state of the focus point at any position, and information can be sent through the communication module 6 to provide a noise warning reminder for the focus point.

[0076] The above are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of the claims of the present invention to be approved.

Claims

1. A sound insulation barrier structure, characterized in that: The noise barrier structure comprises a modular wall panel, a noise collection module (4), a noise signal processing module (7) and a communication module (6), wherein the noise collection module (4) and the communication module (6) are both electrically connected to the noise signal processing module (7); The modular wall panel has a chamber, and the noise collection module (4) and the noise signal processing module (7) are both installed in the chamber of the modular wall panel; The location of the noise collection module is used as a monitoring point, and the location where the noise needs to be controlled is used as a focus point. The noise signal processing module (7) is used to determine the noise state according to the position data between the monitoring point and the sound source and the focus point, and send information through the communication module (6) when the noise state reaches a set threshold.

2. The sound insulation barrier structure according to claim 1, characterized in that: The noise collection module (4) is installed in a reserved hole of the modular wall panel opposite to the noise source.

3. The sound insulation barrier structure according to claim 2, characterized in that: The sound insulation barrier structure further comprises a partition (21) and a power supply module, wherein the partition (21) divides the chamber into a first chamber and a second chamber, the noise collection module (4) and the noise signal processing module (7) are both located in the first chamber, and the power supply module is located in the second chamber.

4. The sound insulation barrier structure according to claim 3, characterized in that: The partition (21) is arranged in a horizontal direction. When the installation is completed, the first chamber is located above the second chamber, and the reserved hole is located in the top area of ​​the first chamber.

5. The sound insulation barrier structure according to claim 3, characterized in that: The power supply module comprises an energy storage battery (8) and a photovoltaic panel (3) electrically connected to the energy storage battery (8); the energy storage battery (8) is located in the second chamber; and the photovoltaic panel (3) is fixed on the outer wall of the modular wall panel.

6. The sound insulation barrier structure according to claim 2, characterized in that: The sound insulation barrier structure further comprises a lighting lamp (51), wherein the lighting lamp (51) is installed on the outer side wall of the modular wall panel.

7. The sound insulation barrier structure according to claim 2, characterized in that: The sound insulation barrier structure also includes an indicator light (52), and the indicator light (52) is installed on the outer side wall of the modular wall panel.

8. The sound insulation barrier structure according to claim 3, characterized in that: The noise signal processing module (7) comprises: a signal conversion submodule, a data analysis submodule and a data storage submodule, wherein the signal conversion submodule, the data analysis submodule and the data storage submodule are all integrated and fixed on a circuit board, and the circuit board is installed in the first chamber.

9. The sound insulation barrier structure according to claim 1, characterized in that: The communication module (6) is mounted on the outer side wall of the modular wall panel.

10. The sound insulation barrier structure according to claim 3, characterized in that: The sound insulation barrier structure further comprises a thermal insulation module (9), and the thermal insulation module (9) is located in the second chamber.

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