Comparison detection device for ambient noise system

Abstract

The utility model discloses a device for comparison detection of an environmental noise system. The device comprises a handheld sound level meter, a first power supply module and a first clamping mechanism, the handheld sound level meter is provided with an interface; the first power supply module is provided with a mounting block for detachably inserting the handheld sound level meter; the mounting block is provided with a jack for electrically plugging the interface; the first clamping mechanism comprises a clamping rod and a locking bolt; the first power supply module is fixed to one end of the clamping rod; the other end of the clamping rod is provided with a clamping part used for being clamped on a support of a noise monitoring substation microphone. A locking hole used for being matched with the locking bolt to fix the clamping rod to the support is formed in the clamping part. According to the comparison detection device for the environmental noise system, the accuracy of the detection data of the noise monitoring substation microphone is high, the detection data is accurate through the comparison detection mode, and the device is simple in structure and convenient to install.

Description

Technical Field

[0001] The utility model particularly relates to a device for comparison detection of an environmental noise system. Background Art

[0002] A noise monitoring substation is the outdoor sampling component of an automatic environmental noise monitoring system and is generally available in two types: fixed and mobile. A noise monitoring substation includes an all-weather outdoor microphone, a noise collection and analysis unit, a communication unit, a power control unit, and supporting safety features such as a chassis.

[0003] Substations require regular maintenance to check the accuracy of the data. Since most substations are fixed, they are not easy to transport, and even mobile ones are not convenient to transport to the laboratory for testing. Therefore, qualified portable instruments that have passed laboratory testing are generally used to perform comparative tests on substations. Currently, some of these portable instruments are box-type, which is not convenient to transport. If handheld instruments are used, since the comparative test needs to run continuously for 48 hours to 7 days, installation and instrument life are issues that need to be addressed. In other words:

[0004] If a box-type device is used, the internal equipment of the substation is installed and integrated into a protective pull-out box. This device itself is relatively large, inconvenient to transport, and relatively expensive. Since it is a portable box, it also needs to be considered to prevent theft when it is left outdoors for a long time.

[0005] If a handheld instrument (sound level meter) is used, installation is inconvenient. The microphone of the handheld instrument must be at the same height as the substation microphone. Since the substation's outdoor microphone is located higher up, typically 2 to 6 meters above the ground, the handheld instrument is difficult to install and secure. Furthermore, the battery life of the handheld instrument cannot support the requirements of comparative testing.

[0006] Currently, some solutions use extension cables to extend the microphone of a handheld instrument. However, in this solution, the long extension cable itself attenuates the signal, and the installation of the microphone is also difficult. Utility Model Content

[0007] The present invention provides a device for comparison detection of an environmental noise system to solve the above-mentioned technical problems, specifically adopting the following technical solutions:

[0008] A device for comparative detection of environmental noise systems, comprising: a handheld sound level meter for monitoring sound, a first power module for powering the handheld sound level meter, and a first clamping mechanism for mounting the first power module on a bracket of a noise monitoring substation microphone to be detected; the handheld sound level meter is provided with an interface; the first power module is provided with a mounting block for detachably inserting the handheld sound level meter; the mounting block is provided with a socket for electrically plugging the interface; the first clamping mechanism comprises: a clamping rod and a locking bolt; the first power module is fixed to one end of the clamping rod; the other end of the clamping rod is formed with a clamping portion for clamping on a bracket of the noise monitoring substation microphone; the clamping portion is formed with a locking hole for cooperating with the locking bolt to fix the clamping rod to the bracket.

[0009] Furthermore, the clamping portion is C-shaped; a locking groove for gripping the bracket is formed on the inner side of the clamping portion at a side away from the locking bolt.

[0010] Furthermore, a trumpet-shaped pressing portion is formed on one end of the locking bolt for pressing the bracket; a large end of the trumpet-shaped pressing portion contacts the bracket.

[0011] Furthermore, the trumpet-shaped pressing portion is made of rubber material.

[0012] Furthermore, the integral outer cover formed by the handheld sound level meter and the mounting block is provided with a silicone cover for protecting the entire cover.

[0013] Furthermore, fixing flanges are formed on both sides of the mounting block; and the bottom of the silicone sleeve is pressed tightly between the fixing flanges and the first power module.

[0014] Furthermore, the first power module is fixedly connected to a first safety rope; one end of the first safety rope is connected to the outer periphery of the bracket.

[0015] Furthermore, the bracket is also installed with a second power module for providing additional battery life; the second power module is detachably mounted on the bracket through a second clamping mechanism and is electrically connected to the first power module through a cable.

[0016] Furthermore, the second power module is fixedly connected to a second safety rope; one end of the second safety rope is connected to the outer periphery of the bracket.

[0017] Furthermore, a distance detection sensor for detecting the height value of the sound collector of the handheld sound level meter is provided at the lower end of the sound collector of the handheld sound level meter.

[0018] The benefit of this solution lies in the fact that the device provided for comparative detection of environmental noise systems accurately detects the noise monitoring substation microphone's detection data by placing the handheld sound level meter and the noise monitoring substation microphone at the same height, collecting sound information at the same height for comparison. This method provides accurate detection data, a simple device structure, and easy installation. Furthermore, the first power module is installed separately from the handheld sound level meter, which not only increases its own capacitance as needed but also allows it to be charged via an external power source, resulting in a higher overall battery life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 This is a schematic diagram of a device for comparison detection of an environmental noise system according to the present invention;

[0021] Figure 2 yes Figure 1 A schematic diagram of a first clamping mechanism of a device for comparison detection of an environmental noise system;

[0022] Figure 3 This is a schematic diagram of a circuit module inside a first power module of a device for comparison detection of an environmental noise system according to the present invention;

[0023] Figure 4 It is a schematic diagram of a detection method of a device for comparative detection of an environmental noise system according to the present invention;

[0024] A device 10 for comparative detection of environmental noise systems includes a handheld sound level meter 11, a distance detection sensor 111, a first power module 12, a mounting block 13, a fixing flange 131, a noise monitoring substation microphone 14, a bracket 15, a first clamping mechanism 16, a clamping rod 161, a clamping portion 162, a locking groove 1621, a locking hole 1622, a locking bolt 163, a trumpet-shaped pressing portion 1631, a large end 1632, a silicone sleeve 17, a first safety rope 18, a second power module 19, a second clamping mechanism 20, a cable 21, and a second safety rope 22. DETAILED DESCRIPTION

[0025] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0026] In the description of this application, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0027] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0028] like Figure 1 and Figure 2 Shown is a device 10 for comparative detection of an environmental noise system according to the present application, comprising: a handheld sound level meter 11 , a first power module 12 and a first clamping mechanism 16 .

[0029] The handheld sound level meter 11 is used to monitor and collect sound, and then compare the sound with the sound collected by the noise monitoring substation microphone 14 to be detected to detect the data accuracy of the noise monitoring substation microphone 14 to be detected. The first power module 12 is used to power the handheld sound level meter 11, and the first clamping mechanism 16 is used to install the first power module 12 on the bracket 15 of the noise monitoring substation microphone 14 to be detected. The handheld sound level meter 11 is provided with an interface, and the first power module 12 is provided with a mounting block 13 for detachably inserting the handheld sound level meter 11, and the mounting block 13 is provided with a socket for electrically plugging the interface. The interface and the socket here are structures that are plugged into each other for electrical connection. Figure 1 The interface and socket are not shown in FIG.

[0030] Furthermore, the bracket 15 is also equipped with a second power module 19 to provide additional battery life, thereby ensuring the battery life of the first power module 12. The second power module 19 is removably mounted to the bracket 15 via a second clamping mechanism 20 and is electrically connected to the first power module 12 via a cable 21. The second clamping mechanism 20 has the same structure as the first clamping mechanism 16, which means that the installation positions of the first power module 12 and the second power module 19 can be adjusted to match the installation position of the handheld sound level meter 11.

[0031] Specifically, the first clamping mechanism 16 includes a clamping rod 161 and a locking bolt 163. The first power module 12 is secured to one end of the clamping rod 161. The other end of the clamping rod 161 is formed with a clamping portion 162 for clamping onto the bracket 15 of the noise monitoring substation microphone 14. The clamping portion 162 is formed with a locking hole 1622 for engaging the locking bolt 163 to secure the clamping rod 161 to the bracket 15.

[0032] Furthermore, the clamping portion 162 is C-shaped. A locking groove 1621 is formed on the inner side of the clamping portion 162, away from the locking bolt 163, for gripping the bracket 15. The end of the locking bolt 163, which is used to press the bracket 15, is formed with a flared pressing portion 1631. The large end 1632 of the flared pressing portion 1631 contacts the bracket 15. This structure improves the installation stability of the first power module 12 and the second power module 19.

[0033] In this solution, the trumpet-shaped pressing portion 1631 is made of rubber material, which has a strong pressing effect on the bracket 15, thereby improving the locking ability of the clamping rod 161.

[0034] In a specific embodiment, the first power module 12 is fixedly connected to a first safety rope 18, one end of which is connected to the outer periphery of the bracket 15. The second power module 19 is fixedly connected to a second safety rope 22, one end of which is connected to the outer periphery of the bracket 15. This ensures the installation security of the first power module 12 and the second power module 19.

[0035] As a specific embodiment, a distance detection sensor 111 is provided at the lower end of the sound collector of the handheld sound level meter 11. This distance detection sensor 111 can detect the height of the sound collector of the handheld sound level meter 11. In this way, the handheld sound level meter 11 is adjusted according to the noise monitoring substation microphone 14 to be tested, ensuring that the background sound collected by the handheld sound level meter 11 and the noise monitoring substation microphone 14 are the same, resulting in more accurate comparative test data.

[0036] As a specific embodiment, the handheld sound level meter 11 and mounting block 13 are covered with a silicone sheath 17 to protect the entire assembly from rain and dust. Mounting block 13 is formed with fixing flanges 131 on either side. The bottom of the silicone sheath 17 is pressed tightly between the fixing flanges 131 and the first power module 12, thereby improving the structural stability of the assembly of the handheld sound level meter 11 and mounting block 13.

[0037] The device 10 for comparative detection of environmental noise systems is compact and easy to install. No additional modifications (such as extension cords) are required to the handheld sound level meter 11, ensuring the accuracy of the data collected by the handheld sound level meter 11. Furthermore, the adaptable mounting block 13 is flexible and can be replaced to accommodate different handheld sound level meters 11, providing high versatility.

[0038] like Figure 3 Figure 1 shows the internal circuitry of the first power module 12. The first power module 12 has a built-in lithium battery pack, an input port, and an output port. A diode SR560 is connected in series to the positive terminal of the output port. The output port is divided into two paths: one that powers the handheld sound level meter 11 via the LK1253, and one that connects to an external second power module 19. Second power module 19 is configured to meet battery life requirements, and a cable connects the second power module 19 to the first power module 12 to provide additional battery life.

[0039] like Figure 4 As shown, the working principle of the handheld sound level meter 11 is as follows: After the outdoor microphone of the environmental noise monitoring system substation, i.e., the noise monitoring substation microphone 14, collects noise data, the data is remotely transmitted to the comparison detection system through the internal communication unit. At the same time, after the handheld sound level meter 11 collects noise data, it can remotely transmit the data to the comparison detection system through path ① using the communication unit of the noise monitoring substation microphone 14, or it can remotely transmit the data to the comparison detection system through path ② using the communication unit (4G or 5G) built into the handheld sound level meter 11 itself. After receiving the two sets of data, the comparison detection system compares and analyzes the data by calibrating the time information and generates a comparison report.

[0040] In summary, the device 10 for comparative detection of environmental noise systems of this scheme sets the handheld sound level meter 11 and the noise monitoring substation microphone 14 at the same height, collects sound information at the same height for comparison, and thus detects the detection data of the noise monitoring substation microphone 14 with high accuracy. This comparative detection method has accurate detection data, a simple device structure, and is easy to install. After installation, it can be remotely operated and a detection report can be automatically generated.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the scope of protection of the present invention.

Claims

1. A device for comparison detection of an environmental noise system, characterized in that: include: A handheld sound level meter for monitoring sound, a first power supply module for powering the handheld sound level meter, and a first clamping mechanism for mounting the first power supply module on a bracket of a noise monitoring substation microphone to be detected; The handheld sound level meter is provided with an interface; The first power supply module is provided with a mounting block for detachably inserting the handheld sound level meter; The mounting block is provided with a socket for electrically plugging into the interface; The first clamping mechanism includes: a clamping rod and a locking bolt; The first power module is fixed to one end of the clamping rod; The other end of the clamping rod is formed with a clamping portion for clamping the noise monitoring substation microphone on the bracket; The clamping portion is formed with a locking hole for cooperating with the locking bolt to fix the clamping rod to the bracket.

2. The device for comparison detection of environmental noise system according to claim 1, characterized in that: The clamping portion is C-shaped; A locking groove for gripping the bracket is formed on the inner side of the clamping portion at a side away from the locking bolt.

3. The device for comparison detection of environmental noise system according to claim 1, characterized in that: One end of the locking bolt used for pressing the bracket is formed with a trumpet-shaped pressing portion; The large end of the trumpet-shaped pressing portion abuts against the bracket.

4. The device for comparison detection of an environmental noise system according to claim 3, characterized in that: The trumpet-shaped pressing portion is made of rubber material.

5. The device for comparison detection of environmental noise system according to claim 1, characterized in that: The integral outer cover formed by the handheld sound level meter and the mounting block is provided with a silicone cover for protecting the entire cover.

6. The device for comparison detection of environmental noise system according to claim 5, characterized in that: Fixing flanges are formed on both sides of the mounting block; The bottom of the silicone sleeve is pressed tightly between the fixing flange and the first power module.

7. The device for comparison detection of an environmental noise system according to claim 1, characterized in that: The first power module is fixedly connected to a first safety rope; One end of the first safety rope is connected to the outer periphery of the bracket.

8. The device for comparison detection of an environmental noise system according to claim 1, characterized in that: The bracket is also equipped with a second power supply module for providing additional battery life; The second power module is detachably mounted on the bracket via a second clamping mechanism and is electrically connected to the first power module via a cable.

9. The device for comparison detection of an environmental noise system according to claim 8, characterized in that: The second power module is fixedly connected to a second safety rope; One end of the second safety rope is connected to the outer periphery of the bracket.

10. The device for comparison detection of environmental noise system according to claim 1, characterized in that: A distance detection sensor for detecting the height value of the sound collector of the handheld sound level meter is provided at the lower end of the sound collector of the handheld sound level meter.

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