CN112684008B - Intelligent laboratory measurement system for sound insulation of building components - Google Patents

Abstract

The invention relates to an intelligent laboratory measurement system for sound insulation of a building component. The invention mainly comprises an intelligent sounding module, a noise testing module, an intelligent mobile terminal, a receiving chamber and a sound source chamber. The intelligent sound generating module comprises an intelligent signal generator, a power amplifier integrated machine and a positive dodecahedron sound source. The noise testing module comprises a bracket, an intelligent positioning device and an intelligent sound level meter. The intelligent mobile terminal comprises an intelligent positioning device control module, a sound source control module, a sound insulation amount analysis module and a data display module. The noise testing module in the receiving room and the sound source room transmits the data to the intelligent mobile terminal through wireless, and the sound insulation amount analysis module analyzes and processes the data to obtain the sound insulation amount of each frequency band constructed by the tested building. The invention can realize the remote building component sound insulation testing method, reduces the artificial influence in the noise measurement process, and obtains more accurate, more reliable and more authoritative testing data.

Description

An intelligent laboratory measurement system for sound insulation of building components

Technical Field

The invention relates to a measurement system, in particular to an intelligent laboratory measurement system for sound insulation of building components.

Background Art

With the continuous development of modern industry, environmental pollution has also occurred. Noise pollution, as a type of environmental pollution, has become a major hazard to human society. Noise pollution, water pollution, air pollution, and solid waste pollution are known as the four major environmental problems in the world.

In order to control the spread of noise, control measures such as sound elimination, sound absorption and sound insulation are taken on the noise propagation path to effectively eliminate or reduce noise pollution. Sound insulation has been widely used as an effective means of noise reduction, such as sound insulation rooms, sound insulation covers, sound insulation screens, etc. In order to make an objective and quantitative evaluation of the sound insulation performance of building components, it is necessary to test the building components.

Traditional component sound insulation measurement equipment is mainly composed of a multi-channel signal analyzer, a microphone, a sound source, a PC and a series of other supporting equipment. The equipment between multiple soundproof rooms is connected by cables. The equipment is large in size, the wiring is cumbersome, and the degree of human intervention is high. The controllability and repeatability are poor, and it cannot fully meet the test requirements.

With the development of Internet of Things technology, wireless communication technology and computer technology are increasingly used in acoustic testing, making it possible to transmit the measurement data of various measuring instruments and equipment wirelessly, and the measurement results can be obtained intelligently through software. In the Internet of Things environment, intelligent and accurate measurement of the sound insulation performance of components is a development trend of structural sound insulation measurement.

Summary of the invention

The purpose of the present invention is to improve the current status of the above-mentioned existing building component sound insulation measurement method and provide a building component sound insulation intelligent laboratory measurement system.

The technical solution adopted by the present invention to solve the technical problem is:

An intelligent laboratory measurement system for sound insulation of building components comprises an intelligent sound-generating module, a noise testing module, an intelligent mobile terminal, a receiving room, and a sound source room.

The intelligent sound module comprises an intelligent signal generator, an integrated power amplifier and a regular dodecahedron sound source; the intelligent signal generator and the integrated power amplifier adjust parameters such as the type, frequency, amplitude and the like of the sound source signal to drive the regular dodecahedron sound source to produce sound.

The noise testing module comprises a bracket, an intelligent positioning device and an intelligent sound level meter; the bracket is fixed on the intelligent positioning device and remains fixed; the intelligent positioning device moves to a designated test position in the laboratory according to instructions; the intelligent sound level meter is placed on the bracket and remains stable; the intelligent sound level meter converts the noise signal from an analog quantity into a digital quantity to form original noise data, and sends the data to a smart mobile terminal via a wireless network.

The intelligent mobile terminal comprises an intelligent positioning device control module, a sound source control module, a sound insulation analysis module and a data display module; the intelligent positioning device control module drives the intelligent positioning device to move to a set coordinate point; the sound source control module drives the intelligent sound module to operate; the sound insulation analysis module converts the original noise data transmitted via the wireless network, realizes the background noise measurement of the sound source room and the receiving room, the reverberation time measurement of the receiving room, the average sound pressure level measurement, the sound pressure level measurement of each frequency band and the sound insulation measurement of each frequency band of the building component, and stores it through test data calculation; the test personnel can view the measurement data at any time and form a test document; the data display module displays the data obtained by the sound insulation analysis module in real time on the intelligent mobile terminal.

The noise test module is placed in one set in the receiving room and one set in the sound source room; the intelligent sound module is placed in the sound source room.

The receiving room and the sound source room are connected and share a test wall, and the tested building component is embedded in the test wall.

The intelligent positioning device control module, sound source control module, sound insulation analysis module and data display module are all implemented on the intelligent mobile terminal.

The method for testing the sound insulation of building components using the above system includes the following steps:

Step 1: Fix the building component to be tested on the test wall and confirm the basic information such as the sound insulation area and number of the building component;

Step 2: Place the noise test module in the middle of the receiving room and the sound source room respectively, and enter the coordinates (0,0) in the intelligent positioning device control module;

Step 3: Place the intelligent sound module near the noise test module in the sound source room;

Step 4: Set the signal generation type, frequency, amplitude and other parameters in the sound source control module, and drive the regular dodecahedron sound source to generate sound after being analyzed by the signal generator and the integrated power amplifier;

Step 5: Set the coordinates in the intelligent positioning device control module, drive the intelligent positioning device, and move the intelligent sound level meters in the receiving room and the sound source room to the designated positions;

Step 6: Start the sound insulation analysis module and data display module, and record the measurement data;

Step 7: Repeat steps 5 and 6 for more than 5 times, and calculate and display the average sound pressure level in the receiving room and the sound source room;

Step 8: Calculate the sound insulation of each frequency band of building components and draw a curve graph;

Step 9: Click Stop Test to generate a test report.

The beneficial effects of the present invention are:

1. Use the Internet of Things technology to communicate wireless data between various measuring instruments and equipment, and use smart mobile terminals and smart sound level meters to replace traditional sound signal analyzers and digital sound level meters, so as to realize the intelligent measurement of building sound insulation and make full use of the Internet of Things technology in building acoustic measurement;

2. It can realize the remote building component sound insulation test method, reducing the human influence in the noise measurement process, and making the test data more accurate, more reliable and more authoritative;

3. It can be directly used for daily detection of sound insulation of building components, with good economic benefits.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of an intelligent laboratory measurement system for sound insulation of building components;

Fig. 2 is a flowchart of the present invention;

In Figure 1, 1. receiving room, 2. intelligent sound level meter, 3. measured building component, 4. intelligent signal generator and power amplifier integrated machine, 5. regular dodecahedron sound source, 6. sound source room, 7. bracket, 8. intelligent positioning device control module, 9. sound source control module, 10. sound insulation analysis module, 11. data display module, 12. intelligent positioning device.

DETAILED DESCRIPTION

The present invention is further described in detail below through examples and in conjunction with the accompanying drawings.

As shown in FIG1 , the intelligent laboratory measurement system for sound insulation of building components in the present invention is mainly composed of an intelligent sound module, a noise test module, an intelligent mobile terminal, a receiving room, and a sound source room. The intelligent sound module includes an intelligent signal generator, an integrated power amplifier, and a regular dodecahedron sound source. The noise test module includes a bracket, an intelligent positioning device, and an intelligent sound level meter. The intelligent sound level meter converts the noise signal from an analog quantity to a digital quantity to form the original noise data, and sends the data to the intelligent mobile terminal through a wireless network. The intelligent mobile terminal includes an intelligent positioning device control module, a sound source control module, a sound insulation analysis module and a data display module; the intelligent positioning device control module drives the intelligent positioning device to move to the set coordinate point; the sound source control module drives the intelligent sound module to operate; the sound insulation analysis module converts the original noise data transmitted via the wireless network, realizes the background noise measurement of the sound source room and the receiving room, the reverberation time measurement of the receiving room, the average sound pressure level measurement, the sound pressure level measurement of each frequency band and the sound insulation measurement of each frequency band of the building components, and stores it through test data calculation; the test personnel can view the measurement data at any time and form a test document; the data display module displays the data obtained by the sound insulation analysis module in real time on the intelligent mobile terminal.

The following embodiments are given in conjunction with FIG. 1 and FIG. 2 .

Example

This embodiment tests the sound insulation of a certain building component. As shown in FIG1 , the intelligent laboratory measurement system for sound insulation of a building component in the present invention includes 1. a receiving room, 2. an intelligent sound level meter, 3. a building component to be tested, 4. an intelligent signal generator and an integrated power amplifier, 5. a regular dodecahedron sound source, 6. a sound source room, 7. a bracket, 8. an intelligent positioning device control module, 9. a sound source control module, 10. a sound insulation analysis module, 11. a data display module, and 12. an intelligent positioning device.

Step 1: Fix the tested building component 3 on the test wall and confirm the basic information such as the sound insulation area and number of the tested building component 3;

Step 2: Place the noise test module in the middle of the receiving room 1 and the sound source room 6 respectively, and enter the coordinates (0,0) in the intelligent positioning device control module 8;

Step 3: Place the intelligent sound module near the noise test module in the sound source room 6;

Step 4: Set the signal generation type, frequency, amplitude and other parameters in the sound source control module 9, and drive the regular dodecahedron sound source 5 to generate sound after being analyzed by the signal generator and power amplifier integrated machine 4;

Step 5: Set the coordinates in the intelligent positioning device control module 8, drive the intelligent positioning device 12, and move the intelligent sound level meter 2 in the receiving room 1 and the sound source room 6 to the designated positions;

Step 6: Start the sound insulation analysis module 10 and the data display module 11 to record the measurement data;

Step 7: Repeat steps 5 and 6 for more than 5 times, and calculate and display the average sound pressure levels of the receiving room 1 and the sound source room 6;

Step 8: Calculate the sound insulation of each frequency band of the tested building component 3 and draw a curve graph;

Step 9: Click Stop Test to generate a test report.

Claims (1)

1. The utility model provides a building element sound insulation volume intelligent laboratory measurement system, includes intelligent sound production module, noise test module, intelligent mobile terminal, receiving room, sound source room, its characterized in that:

the noise testing module is respectively arranged in the receiving chamber and the sound source chamber; the intelligent sounding module is arranged in a sound source room;

the receiving chamber is connected with the sound source chamber, shares one side of the test wall, and the tested building member is embedded in the test wall;

The intelligent sounding module comprises an intelligent signal generator, a power amplifier integrated machine and a regular dodecahedron sound source; the intelligent signal generator and the power amplifier all-in-one machine regulate the generation type, frequency and amplitude of the sound source signal of the regular dodecahedron, and drive the sound source of the regular dodecahedron to produce sound;

The noise testing module comprises a bracket, an intelligent positioning device and an intelligent sound level meter; the bracket is fixed on the intelligent positioning device and keeps a fixed state; the intelligent positioning device moves to a designated test position in a receiving room or a sound source room according to the instruction; the intelligent sound level meter is arranged on the bracket and keeps a stable state; the intelligent sound level meter converts the noise signal from analog quantity to digital quantity to form noise original data, and sends the data to the intelligent mobile terminal through a wireless network;

The intelligent mobile terminal comprises an intelligent positioning device control module, a sound source control module, a sound insulation amount analysis module and a data display module; the intelligent positioning device control module drives the intelligent positioning device to move to a set coordinate point; the sound source control module drives the intelligent sound production module to operate; the sound insulation amount analysis module converts noise original data transmitted through a wireless network, realizes background noise measurement of a sound source room and a receiving room, reverberation time measurement of the receiving room, average sound pressure level measurement, sound pressure level measurement of each frequency band and sound insulation amount measurement of each frequency band of a building component, and stores measurement data; the tester can check the measurement data at any time and form a test document; the data display module displays the measurement data obtained by the sound insulation amount analysis module on the intelligent mobile terminal in real time;

The working mode of the measuring system is as follows:

step 1: confirming basic information of the tested building component, including sound insulation area and number;

Step 2: the noise testing module is respectively arranged in the middle of the receiving room and the sound source room, coordinates (0, 0) are recorded in the intelligent positioning device control module, and the intelligent sound level meter is calibrated;

Step3: placing the intelligent sounding module near the sound source room noise testing module;

step 4: setting signal generation type, frequency and amplitude in a sound source control module, analyzing by a signal generator and a power amplifier integrated machine, and driving a positive dodecahedron sound source to sound;

Step 5: setting coordinates in a control module of the intelligent positioning device, driving the intelligent positioning device, and moving the intelligent sound level meter in the receiving chamber and the sound source chamber to a designated position;

step 6: starting an acoustic quantity analysis module and a data display module, and recording measurement data;

step 7: repeating the step 5 and the step 6 for more than 5 times, and calculating and displaying the average sound pressure level of the receiving chamber and the sound source chamber;

Step 8: calculating the sound insulation amount of each frequency band of the building component, and drawing a curve graph;

step 9: clicking to stop testing to form a test report;

The intelligent positioning device control module, the sound source control module, the sound insulation amount analysis module and the data display module are all realized on the intelligent mobile terminal.