JPH08193875A - Automatic measuring system of wind-whining sound - Google Patents

Abstract

PURPOSE: To collect data while a wind-whining sound is being monitored by a method wherein a sound-whining microphone and a surrounding-environment measuring instrument are installed at a site and an analytical circuit and a waveform recording device are driven and controlled remotely. CONSTITUTION: A plurality of microphones 1 which collect a wind-whining sound are connected to noise meters 2, the wind-whining sound is amplified and frequency- analyzed, and a result is sent out to a waveform recording device 3 and to a serial I/O board 8 for an I/O expansion unit 9. An anemometer 4 and an anemoscope 5 are installed at a site, and data on the velocity of a wind and data on the direction of the wind are sent out to the device 3 and to an A/D conversion board 7 for the unit 9 via a converting device 6. An input/output device 10 is connected to the unit 9, a measuring condition at the site is set, and the noise meters 2, the device 3 and the changeover device 6 are controlled through the board 8. The devices 3, 10 are connected to a modem at a remote office through a modem 11 and a telephone line or a radiotelephone 12, and an input/output device to which a display device, a hard disk drive, a printer and the like have been connected is connected. Thereby, data on the wind-whining sound can be collected and monitored easily without requiring labor for a measuring operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic measuring system for measuring wind noise generated in a building or its accessories due to wind according to various conditions.

[0002]

2. Description of the Related Art Louvers such as buildings and bridges, handrails, air conditioners installed on rooftops, and other devices generate wind noise during strong winds depending on their shapes and locations. Such wind noise may cause social problems as noise to the neighborhood. Therefore, it is possible to accumulate as data how much wind noise is generated according to wind speed, wind direction and other various environmental conditions, and use it as predictive, preventive, and preventive measures for wind noise at the time of design or after construction. It will be useful.

In order to collect such wind noise, when a wind noise is generated, a worker goes to the site with a measuring instrument to measure the weather conditions such as wind speed and wind direction and wind noise at that time. It must be recorded and recorded as data.

[0004]

However, it is troublesome for an operator to visit the site to perform measurement and recording during irregular strong winds, resulting in inconsistent measurement conditions and data management, and reliability as data. Is also insufficient.

The present invention has been made in view of the above points, and automatically collects wind noise that cannot be predicted to occur by remote control and analyzes the characteristics of wind noise to obtain effective and highly reliable data. The objective is to provide an automatic measurement system for wind noise that can be recorded.

[0006]

In order to achieve the above-mentioned object, in the present invention, a sound collection detection microphone provided on the site, a measuring instrument for detecting the ambient environment condition on the site, the microphone and the measurement are provided. Circuit for analyzing each detection output of the measuring device and converting it into an electric signal output waveform, a waveform recording device for recording the output waveform of this analysis circuit, and the analysis circuit and the waveform recording device described above or near the site. A windbreaker comprising: a first input / output device for driving and controlling by a power source; a power supply device; and a second input / output device for driving and controlling the analysis circuit and the waveform recording device from a remote location. Provide an automatic sound measurement system.

In a preferred embodiment, the waveform recording device is installed at or near the site and is connected to the second input / output device by a telephone line or a wireless telephone via an interface with a recording waveform transfer function. It is characterized by that.

In a further preferred embodiment, there is a program in which measurement conditions, analysis conditions and recording conditions are set in advance, sound collection, measurement and recording are performed in accordance with this program, and new data is newly added by the second input / output device. The feature is that measurement conditions, analysis conditions and recording conditions can be set and changed.

[0009] In still another preferred embodiment, the power source is composed of an uninterruptible power source connected to an AC power source and a solar cell connected to a rechargeable battery.

In a further preferred embodiment, the measuring instrument is characterized by including any one or more of an anemometer, anemoscope, a vibrometer, and a pressure gauge.

[0011]

[Function] A sound collecting microphone, anemometer, anemometer, and other measuring instruments are installed at the site, and an analysis circuit and a waveform recording device connected to them are connected to an input / output device at a remote location via, for example, a telephone line or a wireless telephone. Can be operated. By connecting an on-site device to an input / output device at a remote location via an interface with a recorded waveform transfer function, data collection operation can be performed from a remote location while monitoring wind noise. Measurement conditions and recording conditions for data collection can be set and changed from a remote location. By using a power supply device that uses both an AC power supply and a solar cell as a power supply, an all-weather uninterruptible system is possible and measurement reliability is improved.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram showing a device layout configuration of an automatic wind noise measurement system according to an embodiment of the present invention, and FIG. 2 shows a device layout configuration of a remote office away from the site. It is a figure.

A microphone 1 for collecting and detecting wind noises at a plurality of positions where wind noises are likely to occur in the field.
Is provided. Although two microphones 1 are shown in the figure, more microphones may be provided. Each microphone 1 is connected to the sound level meter 2. The sound level meter 2 constitutes an analysis circuit for amplifying the sound detected by the microphone 1 for frequency analysis and outputting the amplified sound as analog and digital electric signals. Each sound level meter 2 is connected to a waveform recording device 3 consisting of multiple channels, and a serial I that constitutes an I / O expansion unit 9 is connected.
/ 0 connected to the board 8. The I / O board 8 is an interface circuit made of, for example, RS232C. The I / O expansion unit 9 further includes an A / D conversion board 7
including.

An anemometer 4 and a wind vane 5 are further installed at the site. The anemometer 4 and the wind vane 5 include an analog output signal corresponding to the wind speed and the wind direction and a converter 6 for sampling the analog output signal to generate a digital signal.
Connected to. The converter 6 is connected to the waveform recording device 3 and the A / D conversion board 7 of the I / O expansion unit 9. In addition to the anemometer and anemometer, a vibrometer and a barometer for detecting vibration of a structure such as a building, a handrail, and a louver due to wind, a pressure gauge for detecting a pressure difference between inside and outside of the structure, or the like may be provided. Such anemometer, wind vane,
The vibrometer, pressure gauge, etc., detect the environmental conditions around the wind noise generation site.

An example of the circuit configuration of the sound level meter 2 is shown in FIG. The microphone 1 is connected to the amplifier 20. The analog waveform signal amplified by the amplifier 20 is output as it is to the recorder 3 (FIG. 1), and is frequency-analyzed by the filter circuit 21 and the effective value circuit 22.
Is converted into a digital signal by and is output to the serial I / 0 board 8 of the I / O expansion unit 9 (FIG. 1) via the interface 24. Each device in the sound level meter 2 is a ROM
Drive control is performed by a CPU (microcomputer) 25 according to a control memory stored in 26.

The I / O expansion unit 9 is connected with an input / output device 10 such as a notebook computer. This input / output device 10 sets various measurement conditions in the field, and when necessary, the sound level meter 2 and the waveform recording device 3 via the I / O board 8.
And for driving the converter 6 to perform measurement and recording. The input / output device 10 is connected to the modem 11. The modem 11 is an interface circuit with a recording waveform transfer function. The waveform recording device 3 is further connected to the modem 11. The modem 11 is connected via a telephone line to a modem 18 with a recording waveform transfer function provided in an office at a remote place shown in FIG. When there is no telephone line at the site, transmission / reception is performed by the wireless telephone 12 via the modem 18 at a remote place. The telephone line is not limited to a public line, and a private line network installed on the premises, a dedicated line, a wireless network on the premises, or the like may be used.

An uninterruptible power supply 13 connected to, for example, an AC 100V power supply is provided as a power supply for each device in the field. A solar cell 14 is provided together with the uninterruptible power supply 13, and power is supplied via a controller 15 for voltage control. The solar cell 14 is further connected to the rechargeable battery 16 via the controller 15, and is charged, for example, in the daytime to supply power at night. Sound level meter 2 including such a power supply device,
Each device such as the waveform recording device 3 is housed in the all-weather measuring device storage box 17 on site.

On the other hand, in a remote office, a central monitoring room or other control room or control room away from the site, as shown in FIG. 2, an interface with a recording waveform transfer function is also provided corresponding to the modem 11 on the site side. A modem 18 including a circuit is provided, and an input / output device 19 such as a personal computer is connected to the modem 18. This input / output device 19
A display device (CRT), a hard disk storing various control programs and the like, a printer and the like are connected to the.

In the automatic measurement system having the above-mentioned configuration, the input / output device 10 such as a notebook personal computer in the field and / or the input / output device 19 (or its hard disk) in the office.
The setting data of the measurement conditions is stored inside. The measurement condition setting items are as follows, for example. (1) Measurement location,
(2) Measurement period, (3) Wind direction wind speed measurement points, (4) Noise measurement points, (5) Wind direction wind speed daily report data creation interval, (6) Wind direction wind speed daily data sampling time, (7) ) Recording time, (8) Recording time per waveform recording device, (9) Measurement sampling interval, (1
0) recording analysis condition and number of recordings, (11) minimum time interval when recording a plurality of times under the same condition, and the like. Table 1 below shows an example of the recording analysis condition and the set value of the number of times of recording of the above (10).

[0020]

[Table 1]

The numbers in the table represent the number of recordings. For example, when the east wind is 5 to 10 m / s, the wind noise is recorded three times a day. In this case, one recording time is set in the above (8), and the minimum time interval from one recording to the next recording is set in the above (11). The total number of recording times shown in the table is set so as not to exceed the recording time of the waveform recording device.

FIG. 4 shows an example of a time chart of sampling of data to be recorded in the waveform recording device. T1 represents the acquisition time of wind direction and wind speed data recorded as a daily report. This T1 (second) is set in (6) above. Above (5)
The wind direction and wind speed data is recorded for each T2 based on the daily report interval time T2 (minutes) set in. At the time of sampling each data, the data is analyzed and the condition is judged. When this condition determination matches the set value of (10) (Table 1), the wind noise at that time is recorded for the recording time T3 after the wind direction wind speed sampling time T1. The wind direction wind speed sampling time T1 is equal to the product of the measurement sampling interval at that time and the number of times of sampling.
Also, the recording time T3 of the wind noise at this time is (8) above.
Is set in. When the measured value of the wind direction and wind speed does not match the setting conditions of Table 1, the wind noise is not recorded, and only the wind direction and wind speed data is recorded as the daily report data.

Next, a control program of the automatic wind noise measuring system according to the present invention will be described. This program is, firstly, for automatically measuring the wind direction and wind speed, secondly, for determining conditions from the wind direction and wind speed data at the time of measurement, and automatically recording wind noise, and thirdly, for example, RS232.
It is characterized in that it can be controlled from a remote office using C by an input / output device such as a personal computer. This program is composed of two blocks, a system control program and an automatic measurement program.

The system control program initializes the system and receives an input from the console or RS232C. The wind noise measurement table (set values in Table 1 above) is read from a file. From the console or RS232C, the measurement status is confirmed, the measurement table is changed, and the waveform recording device is controlled. When the set time comes, the system automatically ends.

On the other hand, the automatic measurement program is started by a timer interrupt, and automatically measures the wind direction and wind speed from the system clock at each set time. When the wind direction and the wind velocity satisfy the wind noise measurement condition, the recording by the waveform recording device is started by RS232C. The start of recording and the wind speed at this time are recorded in the log file. The wind direction and wind speed data are recorded in the daily report data file as daily report data at the time intervals set as described above. The interval of automatic measurement of wind noise and the recording interval of wind direction and wind speed in the daily report data file can be set in units of 1 second.

The flow of the system control program will be described below with reference to FIG. First step S
In 1, the measurement parameters are initialized.
Here, the measurement table, wind direction, wind speed measurement interval, recording interval,
Conditions are set for daily report data such as end time.
Next, in step S2, initialization setting of hardware is performed. Here, timer setting, RS232C initialization, A / D converter initialization, interrupt vector setting, and the like are performed. Next, in step S3, the system time is acquired for time management. Note that these steps S1, S2, and S3 may be executed in parallel. Subsequently, in step S4, permission of the interrupt routine for automatic measurement is acquired. Next, it is determined whether the recording device for executing the interrupt routine is currently terminated. If it is not completed, the interrupt is prohibited in step S8 and the process is completed (step S9). If finished, from the office via RS232C (step S
6) or via the console of the notebook personal computer in the field (step S7), the interrupt program execution instruction is received, and the interrupt routine is executed in accordance with the instruction.

Next, the flow of the interrupt program for automatic measurement will be described with reference to FIG. When the interrupt program is started, first in step S10, the system time is acquired from a timer (clock). Based on this time, it is determined whether the waveform recording device is at the stop time (step S11), whether it is the recording time of the wind direction and wind speed (step S12), and whether it is the time of automatic measurement (step S13). If it has not reached (NO), the program is terminated without interrupting. When step S11 is YES, the waveform recording device is stopped (step S14). Step S12
When is YES, the wind direction and wind speed are measured and recorded (step S15). When step S13 is YES, the wind direction wind speed is measured in step S16, and it is determined in step S17 whether the current wind direction wind speed is the measurement condition and the waveform recording device is stopped. This is Y
If it is ES, the wind noise is recorded by the waveform recording device (step S18), and if there is a modification change of the measurement table, the modification change is executed (step S19).

Next, the flow of the wind noise automatic measurement system according to the present invention will be further described with reference to FIGS. 7 to 10. 7 to 9 show the entire program flow of the system in the field, and FIG. 10 shows the program flow in the remote office. When the system starts, the communication conditions and the interrupt timer are set (step S20). Next, it is judged by the interrupt whether or not various kinds of measurement and analysis are performed (step S21), and the interrupt instruction is waited here. The interrupt routine includes the flow by the keyboard (console) of the input device at the site shown in FIG. 7, the flow by communication with the remote office shown in FIG. 8, and the flow by the preset timer shown in FIG. It is composed of

In the field input flow of FIG. 7, various operations such as F1: measurement of wind direction and wind speed and wind noise, and recording analysis conditions are displayed on the screen by key operations (F1 to F6) of the personal computer keyboard. Measurement condition display setting process (step S22), F2: measurement status display process (step S23) for displaying the measured data on the screen, F3: wind direction wind speed data recorded in the daily report on the screen Daily report data display process for displaying (step S24), F4: Analysis data display process for displaying frequency-analyzed digital data on the screen (step S25), F5: Wind noise recorded in the waveform recording device The recorded data playback process (step) of the waveform recorder for playing and listening to specified recorded data when needed. -Up S26), and F6: program termination process for terminating the processing of the entire system (step S27) and the like are performed. With such a flow, for example, when a wind noise is actually generated, the measurement conditions such as wind direction and wind speed are set and displayed at the site, the data during measurement is displayed, or daily report data or recording is performed. The data can be displayed and reproduced as needed.

FIG. 8 is a flow of transmitting and receiving data and commands between the site and the office via a telephone line or the like. By operating a keyboard of a personal computer from an office away from the site, various measurement conditions are transmitted and received (step S28), measurement status data is transmitted (step S29), wind direction wind speed daily report data is transmitted (step S30), and analysis data is transmitted (step). S31), and transmission of recording data of the designated waveform recording device (step S32), etc.
NE) or wireless telephone.

FIG. 9 is a flow executed according to a preset timer time. At the measurement time for creating the daily report, wind direction and wind speed data is captured (step S3).
3). Next, the fetched data is edited to create daily report data and recorded (step S34). It is determined whether this daily report data meets the measurement conditions for wind noise recording (step S35). If the conditions are not met,
Wait until the next daily report data processing time without recording. If the daily report data meets the measurement conditions, step S36
At the same time, recording is started, noise is analyzed and converted into digital data, and wind direction and wind speed data at this time are captured. When a predetermined recording time has elapsed, next, in step S37, the recording is stopped and the noise analysis digital data of the recorded wind noise is captured. In addition, the wind direction and wind speed data captured at this time are analyzed and recorded.

FIG. 10 shows a program flow in the office remote from the site, which corresponds to the process flow at the site by the communication in FIG. When the interrupt process is started, first, the communication condition is set (step S38). Then, the menu is displayed on the personal computer screen (step S3
9) By the keyboard operation, similar to the keyboard operation at the site shown in FIG. 7, the measurement condition is set while being displayed on the screen and this data is transmitted / received to / from the site (step S40). The measurement condition data recorded in (1) is received from the site and displayed, or the set measurement condition is changed (step S41), and the wind direction and wind speed data recorded as a daily report is received and displayed (step S42).
The frequency-analyzed data is received and displayed by the sound level meter or the converter (step S43), and any recording data is received and reproduced and heard in the office (step S4).
4) Further, the ending process of the program is performed (step S45). Each of these operations is done from within the office.

[0033]

As described above, according to the present invention, according to the preset measurement conditions, the environmental conditions such as the wind speed and the vibration and the differential pressure are automatically recorded when the conditions are met. The wind noise is recorded and the measurement conditions can be set or changed via communication means from a remote office away from the site, so wind noise data can be easily and reliably obtained without the need for measurement work. Collectable. In addition, the wind noise recorded at the site can be monitored in the office via communication means, and it is effective and reliable to set the optimum measurement conditions while playing the recording as needed without going to the site. It is possible to create high-quality data and use it for predicting, preventing, and preventing wind noise. Further, by using the solar cell and the uninterruptible power supply together, highly reliable measurement operation can be achieved.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an automatic measurement system according to an embodiment of the present invention in the field.

FIG. 2 is a configuration diagram of an automatic measurement system according to an embodiment of the present invention in an office away from a site.

FIG. 3 is a circuit configuration diagram of a noise meter used in the embodiment of FIG.

FIG. 4 is a time chart of the recording operation of the automatic measurement system according to the embodiment of the present invention.

FIG. 5 is a flowchart of a control program for the entire system of the automatic measurement system according to the embodiment of the present invention.

FIG. 6 is a flowchart of an interrupt program of the automatic measurement system according to the embodiment of the present invention.

FIG. 7 is a flowchart of keyboard input in the field of the automatic measurement system according to the embodiment of the present invention.

FIG. 8 is a flowchart that is continuous with the flowchart of FIG. 7 and is through communication in the field of the automatic measurement system according to the embodiment of the present invention.

9 is a flowchart that follows the flowchart of FIG. 8 and is based on preset measurement conditions and a timer in the field of the automatic measurement system according to the embodiment of the present invention.

FIG. 10 is a flowchart in the remote office of the automatic measurement system according to the embodiment of the present invention.

[Explanation of symbols]

1: microphone, 2: sound level meter, 3: waveform recording device,
4: Anemometer, 5: Wind vane, 6: Converter, 7: A /
D conversion board, 8: Serial I / O board, 9: I
/ O expansion unit, 10: input / output device, 11: modem with recording waveform transfer function, 12: wireless telephone, 13:
Uninterruptible power supply, 14: Solar battery, 15: Controller, 16: Rechargeable battery 17: All-weather measuring device storage box, 18: Modem with recording waveform transfer function, 19:
I / O device.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinji Yamada 3-12-30 Yumura, Kofu City, Yamanashi Prefecture (72) Toshiya Kitamura 15-4 Tenjincho, Tenjin Town, Kofu City, Yamanashi Prefecture Hiraga 102

Claims (5)

[Claims] 1. A microphone for collecting sound provided at a site, a measuring instrument for detecting a state of the surrounding environment at the site, and each detection output of the microphone and the measuring instrument are analyzed and converted into an electric signal output waveform. Analysis circuit, a waveform recording device for recording the output waveform of the analysis circuit, a first input / output device for driving and controlling the analysis circuit and the waveform recording device at or near the site, and a power supply device And a second circuit for driving and controlling the analysis circuit and the waveform recording device from a remote location.
An automatic wind noise measurement system, comprising: 2. The waveform recording device is installed at a site or in the vicinity thereof, and is connected to the second input / output device by a telephone line or a wireless telephone via an interface with a recording waveform transfer function. Claim 1
Automatic wind noise measurement system described in. 3. A program having preset measurement conditions, analysis conditions, and recording conditions. Sound collection, measurement, and recording are performed according to this program, and new measurement conditions and analysis conditions are provided by the second input / output device. The recording condition can be set and changed.
Or the wind noise automatic measurement system described in 2. 4. The wind noise of claim 1, 2 or 3, wherein the power source includes an uninterruptible power source connected to an AC power source and a solar cell connected to a rechargeable battery. Automatic measurement system. 5. The wind noise of claim 1, 2, 3 or 4, wherein the measuring device includes any one or more of an anemometer, a wind vane, a vibrometer, and a pressure gauge. Automatic measurement system.