KR20100048330A - Apparatus and method for evaluating sound environment - Google Patents

Abstract

PURPOSE: A sound environment evaluating system and a method for evaluating sound environment using the system are provided to measure sound environment state and noise state about a predetermined space and perform rapid and simple evaluation about sound environment in a real time. CONSTITUTION: A sound measuring device(100) obtains a sound signal by measuring sound pressure of predetermines space. A terminal(200) comprises a selecting device, a operation unit, a display unit, a database. The terminal receivs and calculates the measured sound signal. The terminal evaluates a sound environment in a space.

Description

Sound environment evaluation system and sound environment evaluation method using the system {Apparatus and Method for Evaluating Sound Environment}

The present invention relates to a system capable of evaluating a sound environment for a predetermined space and a sound environment evaluation method using the system. More specifically, the acoustic signal is measured by means of acoustic measurement means installed in a predetermined space, and after receiving the measured acoustic signal, the evaluation criteria are selected from among various evaluation criteria stored in the database and the evaluation results are selected according to the selected evaluation criteria. A sound environment evaluation system for calculating and displaying a sound environment evaluation method using the system.

In modern society, acoustic signals are measured in a predetermined space, and the acoustic signals are evaluated according to the evaluation criteria. Therefore, the demand for noise measurement system is increasing with increasing interest in noise problem, especially environmental noise, and the accurate measurement system has made much progress. Products that can be easily applied in the field, such as a sound level meter, are being developed and used in practice.

These acoustic instruments and noise measuring instruments basically measure the sound pressure level of the whole or band and calculate the proposed weighting functions such as the A-weighting curve. A variety of high-level techniques have been applied to synthesize sound sources and identify sound sources.

However, current equipment does not include the process of making a judgment on the state of noise using the data obtained in this way or is provided only in a very limited case. This is because the evaluation criteria vary depending on the regulatory standards of each country, the standards that operate at industrial sites, and the type or purpose of the predetermined space being measured. Therefore, in addition to measuring accurate sound pressure intensity and sound signal in the acoustic measuring device, there is a problem that a large amount of post-processing work must be performed in order to compare with actual regulations or recommendations.

Therefore, a sound environment evaluation system and a sound environment evaluation method capable of obtaining evaluation results according to specific evaluation criteria in real time without using a separate system after measuring noise and sound signals were required.

Therefore, the present invention was devised to solve the above problems, and not only to measure the intensity of sound environment and noise in a predetermined space, but also to evaluate and evaluate the evaluation result according to a specific evaluation criteria according to the post-processing process in real time. It will provide a sound environment evaluation system and evaluation method to know the evaluation results. In addition, it is possible to update by adding or modifying the evaluation criteria to be applied, thereby providing an evaluation system that can obtain the evaluation results that meet the current criteria in real time with the same system for the new evaluation criteria.

The evaluation results are displayed in real time and stored in a database so that you can see how the sound environment in the past was evaluated by the past evaluation criteria. Then, using the evaluation system to provide a method for knowing the sound environment evaluation results for a predetermined space.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments in conjunction with the accompanying drawings.

An object of the present invention as described above, the acoustic measurement means for obtaining a sound signal by measuring the sound pressure in a predetermined space; And a terminal for receiving and calculating the measured acoustic signal to evaluate the sound environment in the space, the terminal comprising: selection means for selecting one of a plurality of evaluation criteria; An operation unit for calculating evaluation operation data according to the evaluation criteria selected by the selecting means and outputting an evaluation result; A display unit selecting means for displaying an evaluation result output from the calculation unit, a control unit connected to the operation unit and the display unit for controlling each of the control units, and providing the evaluation operation data according to the evaluation criteria necessary for the operation unit to the operation unit; And a database that is connected to the control unit and stores the evaluation result and the evaluation calculation data.

The acoustic measuring means and the terminal may be connected by a connecting means, and the connecting means may be wired or wireless.

The acoustic measuring means includes: at least one sound pressure sensor installed in the space and measuring sound pressure to obtain an analog signal; And a digital converter connected to each sound pressure sensor and converting an analog signal into a digital sound signal.

The sound pressure sensor may be a microphone or a noise measurement sensor.

The evaluation criteria may be characterized by legal noise values determined by the type and purpose of the space, the country to which the evaluation criteria are applied, and the evaluation institution.

Evaluation operation data is determined by the relevant regulations, environmental regulations, recommendations and regulations based on the evaluation criteria, and may be characterized by consisting of decision calculation data and comparative evaluation calculation data.

The controller may be updated by storing, modifying, deleting, or adding evaluation calculation data necessary for the calculation unit in a database.

The calculation unit comprises: determination means for determining whether the acoustic signal received from the selection means is legal or inappropriate using the determination calculation data provided from the control unit and outputs a determination result; And comparative evaluation means for comparing and evaluating whether the determination result is legal or how inappropriate to the evaluation criteria using the comparative evaluation calculation data provided by the controller, and outputting the evaluation result.

The controller may select the evaluation criteria to be applied by controlling the selection means when the evaluation criteria need to be replaced while displaying the evaluation results in real time on the display unit.

The acoustic measuring means and the terminal may be characterized as separable.

In still another aspect of the present invention, there is provided a sound environment evaluation method, comprising: obtaining a sound signal by measuring sound pressure in a predetermined space by means of sound measurement means; Receiving a sound signal in real time from the terminal, and selecting means for selecting one of a plurality of evaluation criteria; Calculating evaluation calculation data according to the evaluation criteria selected by the calculation unit and outputting an evaluation result; And displaying the evaluation result output from the calculation unit in real time on the display unit.

The acquiring of the sound signal may include: measuring sound pressure of a space with at least one sound pressure sensor and outputting the sound signal as an analog signal; And converting an analog signal into a digital sound signal by a digital converter connected to each sound pressure sensor.

The selecting means may be composed of a switch, and the selected evaluation criteria may be characterized in that the legal noise level determined by the country or evaluation institution applying the space type, purpose, and evaluation criteria.

In the selection step, the output step, and the display step, each of the control unit may be controlled by a selection unit, a control unit connected to the operation unit, and the display unit, and the control unit may provide evaluation operation data necessary for the operation unit to the operation unit.

The controller may store the evaluation results output from the operation unit and the evaluation results displayed on the display unit in real time, and store, modify, delete or add evaluation operation data necessary for the operation unit to the database to update the evaluation results. .

The evaluation result outputting step may include: determining, by the determining means, whether the acoustic signal received from the selection means is legal or inappropriate using the determination calculation data provided from the control unit and outputting the determination result; And comparing and evaluating, by the comparative evaluation means, the comparative evaluation calculation data provided by the control unit, to the extent of whether the determination result is suitable for the evaluation criteria or to what degree is inappropriate, and outputting the evaluation result.

The acoustic measuring means and the terminal may be characterized as separable.

In the display step, it is determined whether to replace the evaluation criteria to be applied by the control unit, and if you want to replace the evaluation criteria, the control unit to select the evaluation criteria to be applied by controlling the selection means; Can be.

Therefore, according to one embodiment of the present invention as described above, it is possible not only to measure the sound environment state and the noise state for a predetermined space, but also to evaluate the sound environment simply and quickly in real time.

The means for measuring the sound pressure and the terminal for obtaining the evaluation result by calculating the measured sound signal can be separated from each other, so the sound environment can be evaluated even if the type of the sound measuring means is changed. In the case of a terminal, the device is capable of being manufactured in a small size as a device capable of calculating an evaluation result by selecting a specific evaluation criterion according to the present invention.

The terminal that performs the calculation displays the evaluation results and displays the graphs or evaluation grades in a table so that the user can check the results in real time and updates and updates the evaluation calculation data according to specific evaluation criteria. It is possible. Therefore, there is an advantage that the evaluation results can be confirmed by the evaluation criteria that are appropriate by updating the evaluation criteria without exchanging the system itself.

In addition, it is possible to replace the evaluation criteria to be applied in the middle of obtaining the evaluation results in real time, so that the evaluation results according to the other evaluation criteria can be quickly known and how they differ from other evaluation results can be quickly known. The evaluation result of the calculation not only knows whether the sound environment and noise fit the specific evaluation criteria in a given space, but also knows how appropriate the sound environment is in consideration of the regulations and recommendations stored in the database. There are advantages to it.

Therefore, it is possible to measure and evaluate the acoustic signal in real time in a predetermined space easily and quickly, thereby enabling a quick low-tone measure for the sound environment and preventing and preventing damage to noise. In addition, the present invention has the advantage that it can be economically easily manufactured by connecting a terminal that can be evaluated in real time to the existing sound environment and noise measurement device.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be readily apparent to those skilled in the art that various other modifications and variations are possible without departing from the spirit and scope of the present invention. Are all within the scope of the appended claims.

(Configuration of Sound Environment Evaluation System)

Hereinafter, with reference to the accompanying drawings to describe the configuration of the sound environment evaluation system according to the present invention. First, Figure 1 shows a block diagram of the sound environment evaluation system. As shown in FIG. 1, the acoustic environment evaluation system has a configuration in which the acoustic measurement means 100 is connected to the terminal 200 by a connection means 150.

In the case of the acoustic measuring means 100, the sound pressure for the predetermined space 50 is measured by the plurality of sound pressure sensors 110. The unit of sound pressure is mainly decibel (dB) or Pascal (Pa), and the larger the value, the larger the sound pressure. Decibels represent relative values, not absolute values, and are usually calculated at 20log (measured sound pressure / reference sound pressure) using 20 micropascals as the reference sound pressure.

The sound pressure sensor 110 corresponds to a microphone or a noise measuring sensor, and is installed by measuring the sound pressure sensor 110 at an appropriate position to measure the sound pressure of the predetermined space 50. The sound pressure sensor 110 measures the sound pressure of the predetermined space 50 and outputs an analog signal. As shown in FIG. 1, each sound pressure sensor 110 is connected to the digital converter 120. The digital converter (A / D converter) 120 converts the analog signal output from the sound pressure sensor 110 into a digital sound signal by discretizing the signal acquisition module. The digital sound signal is transmitted to the terminal 200 including the calculator 300 to evaluate the sound environment. The terminal 200 is not limited to a specific type such as a desktop computer, a notebook, or a mobile phone as long as the terminal 200 is provided with a means for receiving a sound signal and calculating and displaying an evaluation result.

As shown in FIG. 1, the acoustic measuring means 100 is connected to the terminal 200 by the connecting means 150, and the connecting means 150 may be wired as well as wirelessly. ). The terminal 200 receives the digital sound signal and outputs the evaluation result using the evaluation operation data according to the specific evaluation criteria, and displays the evaluation result according to the evaluation criteria to the user in real time on the display 400. You will be informed.

First, the selection means 210 is in the form of a switch 220 to select a specific evaluation criteria that the user is a standard for calculating the evaluation results. The switch 220 of the selecting unit 210 selects one of the plurality of evaluation standard terminals so that a specific evaluation standard can be applied. When the switch 220 selects a specific evaluation standard, as shown in FIG. 1, the switch 220 transmits a sound signal to a calculation unit connected to the specific evaluation standard.

Evaluation criteria will vary depending on the type of predetermined space 50 (eg, residence, office, factory), country, and evaluation agency. Therefore, when the user inputs the necessary matters such as the purpose of the predetermined space 50, the country and the institution, the evaluation criteria are selected accordingly.

When a specific evaluation criteria is selected according to the selection means 210, the calculation unit 300 calculates the evaluation result according to the evaluation criteria. The evaluation result obtained by calculating the acoustic signal according to the specific evaluation criteria is displayed on the display 400 in real time. Therefore, when the acoustic measurement means 100 transmits the sound signal to the terminal 200 in real time with respect to the predetermined space 50, the evaluation result according to the specific evaluation criteria is displayed on the display 400.

2 illustrates a block diagram of a terminal 200 including a selection unit 210, a calculation unit 300, a display unit 400, a control unit 500, and a database 600 to evaluate a sound environment. As shown in FIG. 2, the digital sound signal obtained by the acoustic measuring means 100 is transmitted to the selecting means 210 of the terminal 200. The selection means 210 selects a specific evaluation standard to be applied in consideration of the purpose of the predetermined space 50 input by the user, a country to be applied, an evaluation institution, and the like.

The calculation unit 300 calculates the evaluation operation data according to the selected evaluation criteria for the transmitted sound signal and outputs the evaluation result. Based on the evaluation criteria, the judging means 310 for determining whether the sound pressure of the predetermined space 50 exceeds the proper criteria is inappropriate or not legal, and in consideration of environmental regulations and recommendations based on specific evaluation criteria. Comparative evaluation means 320 for evaluating whether the degree is appropriate is provided.

Evaluation operation data required to perform the operation in the operation unit 300 will be different for each selected evaluation criteria. The calculation unit 300 is connected to the individual calculation means for each specific evaluation criteria, the determination means 310 includes the individual determination means (310a, 310b, 310c, 310d), the comparison evaluation means 320, the individual comparison evaluation means And 320a, 320b, 320c, and 320d. As shown in FIG. 2, it can be seen that the switch 220 of the selecting means 210 selects the highest evaluation criteria, and the calculation unit 300 separates the individual determination means 310a connected to the selected evaluation criteria. It is connected to the comparative evaluation means (320a) to perform these operations to output the evaluation results.

In addition, the evaluation operation data necessary for the operation is provided by the control unit 500 and is composed of the decision operation data and the comparative evaluation operation data. The determination unit 310 receives the determination operation data from the control unit 500, and the comparison evaluation unit 320 receives the comparison evaluation data from the control unit 500. These evaluation calculation data will be determined by relevant regulations, environmental regulations, recommendations and regulations according to the evaluation criteria.

As shown in FIG. 2, the number of calculation means (determination means, comparative evaluation means) to be calculated in the operation unit 300 is equal to the number of specific evaluation criteria that can be selected by the selection means 210. Therefore, the evaluation result is calculated by the determination means 310 and the comparison evaluation means 320 of the calculation unit 300 meeting the criteria for each evaluation criterion selected by the selection means 210. The operation in the determination means 310 determines that the acoustic signal exceeds the reference value limited by the decision calculation data according to the specific evaluation criteria, and is determined to be inappropriate for the specific evaluation criteria.

In addition, the comparative evaluation means 320 evaluates whether the evaluation criteria are appropriate or how inappropriate by using the comparative evaluation calculation data in consideration of the specific evaluation criteria and environmental-related regulations and recommendations according to the specific evaluation criteria. For example, by classifying the ratings, the higher the amount exceeded in the reference value, the higher the rating. If it is the same as the reference value, it is designated as 0 grade, and if the quantity is exceeded, it is 1, 2, and 3 grade. A rating of -2 can be used. This specific comparative evaluation method is only one embodiment, it is obvious that the scope of rights is not limited to this method.

The evaluation result is displayed on the display unit 400 in real time, and the user can know whether the current sound pressure is suitable for the specific evaluation criteria allowed in the predetermined space 50 in real time with respect to the predetermined space 50, You will know in real time how well you are fit. The displayed form may be a character or a graph that allows the user to recognize the evaluation result, and it is obvious that the deformation of the displayed form does not affect the interpretation of the scope of the present invention.

In addition, as shown in Figure 2, it can be seen that the selection means 210, the calculation unit 300 and the display unit 400 is connected to the control unit 500 for controlling their operation. The controller 500 may provide the evaluation operation data necessary for the calculation unit 300 to calculate the evaluation result. The controller 500 is connected to a database 600 that stores evaluation calculation data required for calculation, evaluation results calculated in real time in the past and present, and displayed evaluation results. The database 600 not only stores evaluation results calculated in real time, but also stores evaluation calculation data on evaluation criteria that can be calculated by the selection unit 210 and the calculation unit 300.

Therefore, the control unit 500 provides the evaluation operation data stored in the database 600 to the operation unit 300 to calculate the evaluation result. In addition, the number of evaluation criteria selectable by the selection means 210 and the number of calculation means (determination means, comparative evaluation means) according to the specific evaluation criteria in the calculation unit 300 may be changed. The control unit 500 may store newly added evaluation operation data in the database 600, and the control unit 500 may change the number of switches 220 in the selection unit 210 according to the newly updated evaluation criteria. The new evaluation calculation data according to the operation unit 300 is provided.

In addition, in addition to the addition of the evaluation operation data according to the evaluation criteria newly, if the evaluation rule is changed, the evaluation criteria are changed, or evaluation criteria, regulations or recommendations that are not necessary are modified, Can be modified or deleted. Accordingly, the control unit 500 enables the operation of the operation unit 300 to be modified and the deleted items are no longer applied to the calculation of the evaluation result.

In addition, the controller 500 may replace the specific evaluation criteria applied to the acoustic signal measured and transmitted in real time by the current acoustic measurement means 100 according to a user's request. That is, when the specific evaluation criteria for calculating the current evaluation results are desired, the control unit 500 may control the selection means 210 to replace the evaluation criteria desired by the user.

Specifically, in response to the acoustic signal measured by the acoustic measurement means 100 in a predetermined space 50 called a factory, the evaluation criteria presented by the evaluation institution A are selected by the selection means 210 to the evaluation criteria selected by the calculation unit 300. If the user wants to know the evaluation result according to the evaluation criteria presented by the evaluation institution B while the evaluation results are output to the individual calculation means (determination means, comparative evaluation means) according to the evaluation criteria, the evaluation criteria can be replaced. When the control unit 500 changes the switch 220 of the selecting means 210 so as to apply the evaluation criteria according to the evaluation institution B, the evaluation result is connected to the determination means 310 and the comparative evaluation means 320 connected thereto. The operation will be output. However, the evaluation operation data for the evaluation criteria to be newly applied should be a matter stored in the database 600.

In addition, the terminal 200 for calculating and displaying the acoustic measuring means 100 and the evaluation result can be separated, so that the acoustic measuring means 100 can be replaced. In addition, the evaluation result may be obtained by using the digital acoustic signal measured by the acoustic measuring means 100 in another predetermined space 50. In other words, receiving an acoustic signal and obtaining an evaluation result does not always have to be integrated. While calculating the evaluation result by measuring the acoustic signal with the predetermined acoustic measuring means 100, the predetermined acoustic measuring means 100 is separated and another acoustic measuring means 100 is connected to the terminal by the connecting means 150. Evaluation results can be obtained. In addition, after measuring the digital sound signal in a predetermined space 50, such as a factory by the acoustic measuring means 100 having a selection means 210, a calculation unit 300 and a display unit 400 in the office or residential area It is also possible to calculate the evaluation result according to a specific evaluation criteria to be applied to the terminal 200.

3 is a block diagram of a sound environment evaluation system for evaluating a sound environment in a predetermined space in which a plurality of sound pressure sensors are installed. As shown in FIG. 3, four microphones, which are sound pressure sensors 110, are respectively installed at four walls of a predetermined space 50, and the other one is installed at the center thereof. Each microphone will measure the sound pressure at each location. Each microphone is connected to a digital transducer 120 to obtain a digital sound signal for a given space 50 using the averaged value of sound pressure. The digital sound signal is connected to the terminal 200 having the selection unit 210, the calculation unit 300, and the display unit 400 to evaluate the sound environment according to a specific evaluation criteria to be applied to the predetermined space 50. . Figure 3 shows one specific example, it is obvious that changing the number of microphones and the position of the microphone installed in the predetermined space 50 does not affect the interpretation of the scope of the present invention.

(Sound environment evaluation method)

Hereinafter, with reference to the accompanying drawings will be described a first embodiment, a second embodiment and a third embodiment of the sound environment evaluation method according to the present invention. It will be apparent that this is only a specific embodiment for those skilled in the art and the scope of rights is not limited to the following specific embodiments.

4 is a flowchart illustrating a sound environment evaluation method of the present invention according to the first embodiment. The acoustic measuring means 100 measures the sound pressure of the predetermined space 50 in real time to obtain a sound signal (S10). The sound signal is transmitted to the terminal 200 in real time by the connecting means 150 (S20). The switch 220 of the selecting means 210 provided in the terminal 200 selects one evaluation criterion to be applied from among a plurality of evaluation criteria in consideration of the type, purpose, evaluation institution and country of the predetermined space 50. (S30). When the evaluation criteria are selected, the calculation unit 300 calculates evaluation operation data based on the selected evaluation criteria and outputs the evaluation results (S40). In addition, the display unit 400 of the terminal 200 displays the evaluation result in real time so that the user can know the evaluation result (S50).

5 is a flowchart illustrating a sound environment evaluation method according to a second embodiment of the present invention. First, a plurality of sound pressure sensors 110 are installed in the predetermined space 50, and each of the sound pressure sensors 110 measures the sound pressure in the predetermined space 50 to output an analog signal (S100). Each sound pressure sensor 110 is connected to the digital converter 120, the digital converter 120 is to convert the analog signal into a digital sound signal (S200).

The digital sound signal is transmitted to the terminal 200 by the connection means 150 in real time (S300). Then, the selecting means 210 selects a specific evaluation criteria from among the plurality of evaluation criteria in order to obtain the evaluation result desired by the user (S400). When the user inputs a purpose, a specific evaluation institution, etc. in a specific country, a predetermined place, the control unit 500 switches the selection unit 210 so that the selection unit 210 selects a specific evaluation criteria according to the corresponding condition. Will be controlled.

The selection means 210 is connected to the calculation unit 300 to apply a specific evaluation criteria. The calculation unit includes individual calculation means connected to each evaluation criterion. The determination means 310 of the calculating part 300 applies the determination calculation data provided by the control part 500, and determines whether the acoustic signal obtained in the small storage space 50 is legal or unsuitable to a specific evaluation criterion (S500). In addition, the comparative evaluation means 320 evaluates how appropriate the sound signal is if it is legal to a specific evaluation criterion using the comparative evaluation calculation data provided by the control unit 500, and evaluates how appropriately if it is inappropriate. The evaluation result is output (S600). The operation in the operation unit 300 is performed by receiving the evaluation operation data in consideration of the evaluation criteria, regulations and recommendations stored in the database 600 from the control unit 500.

When the evaluation result is calculated, the evaluation result is displayed on the display unit 400 so that the user can know (S700). Therefore, it is possible to know whether the acoustic signal measured in the predetermined space 50 meets the specific evaluation criteria in real time. Also. The calculated evaluation result is stored in the database 600 in real time (S800).

6 is a flowchart illustrating a sound environment evaluation method according to a third embodiment of the present invention. First, the terminal 200 receives a digital sound signal output from the sound measuring means 100 (S1000). As described above, the acoustic measurement means 100 and the terminal 200 may be separated, and after the measurement of the digital sound signal in the predetermined space 50, the connection means 150 is connected to the terminal 200 to evaluate the evaluation result. You can also compute

In addition, the database 600 determines whether modification, deletion or addition of evaluation calculation data according to evaluation criteria, regulations and recommendations is necessary (S2000). When correction, addition or deletion is required, the control unit 500 updates the evaluation operation data by adding or modifying or deleting the evaluation calculation data in the database 600 (S3000). When updated, the evaluation result can be calculated using evaluation calculation data according to the updated evaluation criteria stored in the database 600.

The selecting means 210 selects specific evaluation criteria from among the plurality of evaluation criteria in order to obtain a desired evaluation result (S4000). When a user inputs a specific country, a purpose of a predetermined space 50, a specific evaluation institution, the control unit 500 controls the switch 220 of the selection unit 210 to select a specific evaluation standard according to the corresponding condition. do.

The selecting means 210 is connected to the calculating part 300 so that a specific evaluation criterion can be applied, and the determining means 310 of the calculating part 300 applies the decision calculation data stored in the database 600 to apply a predetermined space 50. The acoustic signal measured in) is calculated to determine whether it is legal or inappropriate for a specific evaluation standard. In addition, the evaluation unit 320 evaluates how appropriate the sound signal is if it is legal to a specific evaluation standard, and if it is inappropriate, evaluates how inappropriate it is and outputs an evaluation result. This operation is performed by receiving the comparison evaluation operation data stored in the database 600 from the control unit 500 (S5000).

Then, the output evaluation result is stored in the database 600 in real time (S6000). In addition, the evaluation result is displayed on the display 400 so that the user can know (S7000). Therefore, it is possible to know in real time whether the acoustic signal of the predetermined space 50 satisfies a specific evaluation criteria. Then, the displayed evaluation result is stored in the database 600 in real time (S8000).

While the evaluation result is being displayed, it may be determined whether the user wants to replace a specific evaluation standard with respect to the received acoustic signal (S9000). If it is desired to replace the specific evaluation criteria, the control unit 500 moves the switch 220 of the selection means 210 to obtain the evaluation criteria according to the specific evaluation criteria to be applied (S10000). When the evaluation criteria to be applied by the selection means 210 are selected, the evaluation result according to the newly selected specific evaluation criteria is then calculated by the calculation unit 300 and displayed on the display unit 400.

1 is a block diagram of a sound environment evaluation system according to the present invention;

2 is a block diagram of a terminal having a selection means, a calculator, a display, a controller, and a database according to the present invention;

3 is a block diagram of a sound environment evaluation system showing a specific embodiment in which a sound pressure sensor is installed in a predetermined space;

4 is a flowchart of a sound environment evaluation method of the present invention according to the first embodiment;

5 is a flowchart of a sound environment evaluation method of the present invention according to the second embodiment;

6 is a flowchart of a sound environment evaluation method of the present invention according to the third embodiment.

<Description of the symbols for the main parts of the drawings>

50: predetermined space

100: sound measuring means

110: sound pressure sensor

120: digital converter

150: connecting means

200: terminal

210: selection means

220: switch of the selection means

300: calculation part

310: determination means

320: comparative evaluation means

400: display unit

500: control unit

600: database

Claims (18)

Acoustic measurement means for measuring sound pressure in a predetermined space to obtain an acoustic signal; And And a terminal for receiving and calculating the measured acoustic signal to evaluate a sound environment in the space. The terminal, Selection means for selecting one of a plurality of evaluation criteria; An operation unit for calculating evaluation operation data according to the evaluation criteria selected by the selection means and outputting an evaluation result; A display unit which displays the evaluation result output from the calculation unit; A control unit connected to the selection unit and the operation unit and the display unit to control each of the operation units, and provide the evaluation operation data according to the evaluation criteria required by the operation unit to the operation unit; And And a database which is connected to the control unit and stores the evaluation result and the evaluation calculation data. The method of claim 1, The acoustic measuring means and the terminal are connected by a connecting means, The connection means is a sound environment evaluation system, characterized in that the wire or wireless. The method of claim 1, The acoustic measuring means, At least one sound pressure sensor installed in the space and measuring the sound pressure to obtain an analog signal; And And a digital converter connected to each of the sound pressure sensors to convert the analog signal into a digital sound signal. The method of claim 3, wherein The sound pressure sensor, Sound environment evaluation system, characterized in that the microphone or noise measuring sensor. The method of claim 1, The evaluation criteria, A sound environment evaluation system, characterized in that the legal noise level determined by the country and the evaluation institution applying the type, purpose, evaluation criteria of the space. The method of claim 1, The evaluation operation data, Determined by relevant regulations, environmental regulations, recommendations and regulations based on the above evaluation criteria, and A sound environment evaluation system comprising judgment calculation data and comparative evaluation calculation data. The method of claim 1, The control unit, The sound environment evaluation system, characterized in that the update is possible by storing, modifying, deleting or adding the evaluation operation data required for the operation unit in the database. The method of claim 7, wherein The calculation unit, Judging means for judging whether the acoustic signal received from the selection means is legal or inadequate using the judging operation data provided by the control unit and outputting a judging result; And And comparative evaluation means for outputting the evaluation result by comparing and evaluating how legally or how inappropriately the determination result is the evaluation criteria using the comparative evaluation calculation data provided by the control unit. Sound environment evaluation system. The method of claim 7, wherein The control unit, When the evaluation criteria need to be replaced while displaying the evaluation results in real time on the display unit, A sound environment evaluation system, characterized in that for selecting the evaluation criteria to be applied by controlling the selection means. The method of claim 1, The sound measurement means and the terminal is a sound environment evaluation system, characterized in that the separation. In the sound environment evaluation method using the sound environment evaluation system of claim 10, Measuring sound pressure in a predetermined space by means of acoustic measurement means to obtain an acoustic signal; Receiving the sound signal in real time from a terminal, and selecting means for selecting one of a plurality of evaluation criteria; Calculating evaluation calculation data according to the evaluation criteria selected by the calculation unit and outputting an evaluation result; And And displaying the evaluation result output from the operation unit in real time on a display unit. The method of claim 11, Obtaining the sound signal, Measuring sound pressure of the space with at least one sound pressure sensor and outputting the analog signal; And And converting the analog signal into a digital sound signal by a digital converter connected to each of the sound pressure sensors. The method of claim 11, The selecting means is composed of a switch, The evaluation criteria selected is a sound noise evaluation method, characterized in that the legal noise level determined by the country or evaluation institution applying the type, purpose, evaluation criteria of the space. The method of claim 11, In the selection step, the output step and the display step, Each of the selection means and the control unit and the control unit connected to the display unit controls each; And the control unit provides the evaluation operation data necessary for the operation unit to the operation unit. 15. The method of claim 14, The control unit, Storing the evaluation result output from the operation unit and the evaluation result displayed by the display unit in a database in real time; A sound environment evaluation method, characterized in that for updating, by storing, modifying, deleting or adding to the database the evaluation operation data required for the calculation unit. The method of claim 15, The evaluation result output step, Determining, by the judging means, whether or not the acoustic signal received from the selection means is legal or inappropriate using the judging operation data provided by the control unit and outputting a judging result; And And comparing and evaluating, by the comparative evaluation means, the comparative evaluation operation data provided by the control unit to determine how appropriate or how inappropriate the determination result is to the evaluation criteria, and output the evaluation result. Sound environment evaluation method. The method of claim 11, The sound measurement means and the terminal is a sound environment evaluation method, characterized in that detachable. The method of claim 15, In the display step, Determine whether to replace the evaluation criteria to be applied by the controller, If you want to replace the above criteria, The control unit further comprises the step of selecting the evaluation criteria to be applied by controlling the selection means; sound environment evaluation method further comprising.

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