JP3062642B2 - Noise / distance measuring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a noise / distance measuring device suitable for use in controlling violent noise caused by street advertising activities in an urban area based on regulations.

[0002]

2. Description of the Related Art The Tokyo Metropolitan Government has enacted a violent noise ordinance in order to regulate street advertising activities caused by excessive volume by right-wing organizations and the like. According to these ordinances, when the noise level is 85 dB or more at a point 10 m away from the noise source, it is possible to make a recommendation to stop or to seize equipment such as a loudspeaker and take other measures. In this case, the noise level is measured using a sound level meter, and the distance to the noise source is measured using a measure.

[0003]

However, according to such a conventional violent noise control method, since the distance to the noise source is measured by a measure, it is very troublesome, time-consuming, and traffic congested. In addition to causing danger, it was also accompanied by danger. Moreover, the correspondence between the noise source and the measurement distance was unclear, and the evidence capacity was poor. In addition, when street advertising is performed while moving by car, or when cracking down from a moving car, it is impossible to measure the distance to the noise source.

The present invention has been made in order to solve such a problem, and an object of the present invention is to easily and quickly reduce a noise generation source without danger even while moving. An object of the present invention is to provide a noise / distance measuring device capable of measuring a distance and a noise level near a distance measuring point . It is another object of the present invention to provide a noise / distance measuring device capable of increasing the proof capacity by clarifying the correspondence between a noise source, a measured distance, and a measured noise level .

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an image pickup means for capturing an object to be measured as an image, and a finder means for displaying the image captured by the image pickup means on a screen. Aim display means for displaying an aim on the screen of the finder means, and distance measurement means for optically measuring the distance to the object to be measured with the position of the aim displayed by the aim display means as a measurement target position, Measure the noise level near where the distance measuring means is located
Measured by the noise level measuring means and the distance measuring means
Distance and noise level measured by the noise level measuring means.
Measurement result display means for displaying the bell on the screen of the finder means.

[0006]

Therefore, according to the present invention, the object to be measured is captured as an image, the captured image is projected on a screen, and a suitable position is set to aim, and the distance to the object to be measured is measured in a non-contact manner. Can be measured with
Can measure the noise level near the distance measuring point
You. At this time, the measured distance to the object to be measured and
The noise level near the ranging point is displayed on the screen together with the image of the measured object.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on embodiments. FIG. 1 is a block diagram of a noise / distance measuring system including an embodiment of the present invention. In the figure, 1 is a laser distance sensor integrated with a camera, 2 is a noise meter, 3 is a video integrated with a television, and 4 is a noise recorder. The sound level meter 2, the TV integrated video 3, and the noise recorder 4 are connected to the camera integrated laser distance sensor 1.

The camera-integrated laser distance sensor 1 has a CP
U having a control unit 1-1, a main switch SW1,
A cigar plug PL, a power supply section 1-2, a video camera section 1-3, a finder (liquid crystal monitor) 1-4 for displaying an image captured by the video camera section 1-3 on a screen, and a finder 1-4. It has adjustment units 1-51 and 1-52 that can adjust brightness and contrast on the screen, a distance sensor unit 1-6 having a light emitting unit and a light receiving unit, and a panel switch unit 1-7. ing.

FIG. 2 is a diagram (a sectional view taken along the line II-II in FIG. 3) showing an arrangement state of each part in the housing 1-8 of the camera-integrated laser distance sensor 1. In FIG.
1 is a light receiving lens, 1-62 is a light transmitting lens, 1-63 is a light receiving window, 1-64 is a light transmitting window, 1-65 is a light receiving element, 1-6
Reference numeral 6 denotes a light-emitting element, which is used to detect
6 have been built. Also, 1-9 is a board, 1-11 is a CPU, 1-53 and 1-71 are switch processing circuits, and 1-81 is a hood provided for the finder 1-4. The sound level meter 2 is mounted on the upper surface of the housing 1-8.

This noise / distance measuring system operates by receiving power supply from a vehicle-mounted battery (not shown). That is, when the cigar plug PL is inserted into a cigar socket of a car (not shown) and the switch SW1 is turned on, the power supply voltage from the vehicle-mounted battery is supplied to the power supply unit 1-2,
The control unit 1-1 is activated. By the activation of the control unit 1-1, the aim 1-41 (see FIG. 4) is displayed on the screen of the finder 1-4, and an image captured by the video camera unit 1-3 is displayed. In FIG. 4, L
P is a pilot lamp, which lights up while the switch SW1 is on.

Now, it is assumed that the publicity vehicle 10 should be controlled as a noise source. In this case, the video camera unit 1
-3 is directed to the street advertising car 10 and the street advertising car 10 is captured as an image. Then, the direction of the camera-integrated laser distance sensor 1 is adjusted, and the sighting 1-41 of the distance sensor displayed on the screen of the finder 1-4 is adjusted to a position suitable for the distance measurement of the street advertising vehicle 10 (the tail lamp is turned on). If measured, it will be shorter than the actual distance).

Thus, the control unit 1-1 sets the aim 1-4.
With the position 1 as a measurement target position, the distance to the street advertising vehicle 10 is measured based on the laser light emitted from the distance sensor unit 1-6, reflected and returned, and the measured distance is displayed on the screen of the finder 1-4. For example, “9.3
M ". In this case, if the measured distance is 10 m or less, a downward arrow indicating the fact is displayed in the display area 1-43. From this arrow, it can be known that the distance to the street advertising vehicle 10 is 10 m or less and does not satisfy the conditions specified in the violent noise regulations.

Further, the control unit 1-1 determines a measured noise level at an installation point of the sound level meter 2 (an installation point of the camera-integrated laser distance sensor 1) based on a signal from the sound level meter 2 in a finder 1-4. For example, “124.3DB” is displayed in an area 1-44 on the screen of “1. Also, the control unit 1-1
Changes the current noise measurement range of the sound level meter 2 based on a signal from the sound level meter 2 into an area 1-
For example, “40-100DB” is displayed at 45. At this time, when the measured noise level exceeds the noise measurement range, the control unit 1-1 displays “OVER” indicating the fact in the display area 1-46, and the measured noise level is lower than the noise measurement range. In this case, "UNDER" indicating that fact is displayed in the display area 1-46. This makes it possible to know that the measured noise level is not within the noise measurement range and that an accurate noise level has not been obtained.

When "OVER" is displayed in the display area 1-46, by operating the down key 1-7D of the panel switch 1-7, the display area 1-4 is displayed.
When "UNDER" is displayed in 6, the up key 1-7U of the panel switch 1-7 is operated to
It is possible to switch the noise measurement range in the sound level meter 2.

The control section 1-1 has a timekeeping function, and displays a date (year, month, day) and time in an area 1-47 on the screen of the finder 1-4. Adjustment of the display contents in this area 1-47, that is, date and time, can be performed by the mode key 1-7M and the select key 1--7 of the panel switch 1-7.
It can be performed by operating 7S.

The control unit 1-1 sends a video output (video signal and audio signal) to the television-integrated video 3, and
The same contents (that is, images, sound, measurement distance, measurement noise level, time, etc.) shown on the finder 1-4 are displayed on the monitor screen of the TV-integrated video 3,
Also, the sound at the installation point of the sound level meter 2, which takes in the sound level meter 2 as a microphone, is reproduced by the speaker of the TV-integrated video 3. The TV-integrated video 3 records the projected contents and audio.

Further, the control unit 1-1 sends a recorder output to the noise recorder 4, and records the measured noise level on paper.
To record the measured noise level at the noise recorded a total of four (at the same time,
Since the measured distance may be recorded), the collation with the recorded contents of the TV-integrated video 3 can be performed, so that the evidential ability is increased.

As can be understood from the above description, according to the noise / distance measuring system according to the present embodiment, the street advertising vehicle 10 is captured as an image by the video camera unit 1-2, and the captured image is displayed on the finder 1-4. After being projected on the screen, the street advertising vehicle 1 is set with an aim 1-41 at an appropriate position.
The distance to 0 can be measured without contact, also the
It is possible to measure the noise level near the measuring point of the measuring distance.
Can, even during moving street advertising vehicle 10, also even during vehicle equipped with this system is moved, easily and short time without risking, Oyo distance to street advertising vehicles 10
By measuring the noise level near the distance measuring point and the ranging point, it becomes possible to control violent noise.

Further, according to the noise / distance measuring system of the present embodiment, the measured distance to the street advertising vehicle 10 and the measured noise level are displayed on the screen together with the image of the street advertising vehicle 10, and this is integrated with the television. Since the video 3 is recorded and left, the correspondence between the noise source, the measured distance, and the measured noise level is clarified, and the evidence ability can be enhanced.

[0020]

In this embodiment, the control unit 1-1 is provided in the laser distance sensor 1 integrated with the camera.
A personal computer or the like may be used as -1.
That is, as shown in FIG. 5, a commercially available personal computer 5 may be provided separately from the camera-integrated laser distance sensor 1 '.

Further, in this embodiment, the cigarette plug PL is inserted into the cigarette socket of the car to obtain power from the onboard battery. However, if a constant voltage power supply 6 as shown in FIG. 6 is used, By inserting the cigar plug PL into the cigar socket insertion port 6-1 of the constant voltage power supply 6, power can be obtained from an AC 100 volt power supply (see FIG. 7).

[0023]

As is apparent from the above description, according to the present invention, the object to be measured is captured as an image, the captured image is displayed on a screen, and an aim is set at an appropriate position to obtain an image. The distance to the object to be measured can be measured in a non-contact manner , and the noise level near the ranging point at the measured distance can be measured.
The bell can be measured, and the distance to the noise source can be easily and quickly reduced without danger even while moving.
In addition, it is possible to measure the noise level near the ranging point . Further, according to the present invention, the measured distance to the object to be measured and the noise level near the distance measuring point are displayed on the screen together with the image of the object to be measured. The noise source and the measurement distance .
It is possible to clarify the correspondence relationship between the measured noise level and the measured noise level, and to increase the evidence capacity.

[Brief description of the drawings]

FIG. 1 is a block diagram of a noise / distance measurement system including an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a front view of a camera-integrated laser distance sensor in the noise / distance measurement system.

FIG. 4 is a diagram showing an example of a screen display on a finder of a camera-integrated laser distance sensor.

FIG. 5 is a diagram showing a noise / distance measurement system constructed using a commercially available personal computer.

FIG. 6 is a diagram showing a constant voltage power supply that can supply power from an AC 100 volt power supply.

FIG. 7 is a diagram showing a noise / distance measurement system in which a constant-voltage power supply is used and power is obtained from an AC100V power supply.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Laser distance sensor integrated with a camera 2 Sound level meter 3 Video integrated with a television 10 Street advertising car 1-1 Control unit 1-3 Video camera unit 1-4 Viewfinder 1-6 Distance sensor unit 1-41 Aiming 1-42 Area (distance Display area) 1-44 area (noise level display area)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-196685 (JP, A) JP-A-3-255429 (JP, A) JP-A-4-366722 (JP, A) 95529 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04N 7/18 G01B 11/00 G01C 3/06 G02B 7/28 H04N 5/225

Claims (1)

(57) [Claims] 1. An image capturing means for capturing an object to be measured as an image, a finder means for displaying an image captured by the image capturing means on a screen, a sight display means for displaying a sight on a screen of the finder means, Distance measuring means for optically measuring a distance to the object to be measured with the position of the aim displayed by the aiming display means as a measurement target position; and measuring a noise level near the position where the distance measuring means is arranged.
Noise level measuring means for measuring the distance and the noise level measured by the distance measuring means.
A noise / distance measurement device comprising: a measurement result display means for displaying the noise level measured by the bell measurement means on a screen of the finder means.