Water quality multispectral camera with ambient light calibration equipment

Abstract

The utility model discloses a water quality multispectral camera with ambient light calibration equipment, which comprises a holder, a photometer is mounted above the holder, a wheel type spectrometer is mounted in the holder, an optical filter motor is mounted on one side of the wheel type spectrometer, a mounting box is mounted in the holder, and an ambient light calibration device is mounted in the mounting box. A deflection piece motor is embedded in the mounting box, a deflection piece is mounted in the mounting box, a lens is mounted on the other side of the wheel type spectrometer, a microwave liquid level meter is mounted below the holder, a sky light window is mounted above the holder, a water surface window is embedded in the lower portion of the holder, and a water surface window is mounted in the water surface window. The utility model relates to the technical field of spectrum cameras. The water quality multispectral camera with the ambient light calibration equipment can collect current ambient light data and perform spectral reflectivity calibration while shooting water surface spectral data of a riverway, thereby serving as a data support for water surface water quality evaluation.

Description

Technical Field

[0001] The utility model relates to the technical field of spectral cameras, in particular to a water quality multi-spectral camera with an ambient light calibration device. Background Art

[0002] The water quality multispectral camera uses natural light or active light source to illuminate the monitoring target, records and calculates the reflectance data of each band of the sensor, and uses the existing model to analyze the properties of the monitoring target. At present, spectral cameras are mostly used for shooting in indoor environments with active light sources. There is a lack of ambient light calibration and river imaging system. The monitored water surface is small and it is impossible to conduct surface water quality distribution monitoring of large-area rivers. It is mainly cross-sectional monitoring. At the same time, the natural light changes drastically and it is difficult to obtain accurate water surface reflectance data, and thus it is difficult to accurately evaluate the water quality of the river. Therefore, the utility model proposes a water quality multispectral camera with ambient light calibration equipment to solve the above-mentioned problems. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a water quality multi-spectral camera with an ambient light calibration device, which solves the problems mentioned in the above background technology.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a water quality multispectral camera with an ambient light calibration device, comprising a pan-tilt, a photometer is installed above the pan-tilt, a wheel-type spectrometer is installed inside the pan-tilt, a filter motor is installed on one side of the wheel-type spectrometer, an installation box is installed inside the pan-tilt, a deflection plate motor is embedded in the installation box, and a deflection plate is installed inside the installation box.

[0005] Furthermore, a lens is installed on the other side of the wheel-type spectrometer, and a microwave level meter is installed below the pan / tilt table.

[0006] Furthermore, a skylight window is installed above the pan / tilt.

[0007] Furthermore, a water surface window is embedded and installed below the pan / tilt platform.

[0008] Furthermore, one end of the output shaft of the deflection plate motor passes through the interior of the installation box, and the deflection plate motor is used to control the flipping of the deflection plate.

[0009] Beneficial Effects

[0010] The utility model provides a water quality multi-spectral camera with an ambient light calibration device. Compared with the prior art, it has the following beneficial effects:

[0011] This water quality multispectral camera with ambient light calibration equipment is oriented to the river water quality scene, with natural light as the main incident light source. It collects the sky light and water surface reflection spectrum through the built-in deflector, detects the external light intensity in real time through the photometer, and controls the photo integration time, so as to avoid the signal-to-noise ratio being too low during the period of weak light and overexposure during the period of strong light. Through the pan-tilt and mirror deflection, it can collect spectral photos within the range of 3 meters × 10 meters on the river surface, obtain water quality distribution data near the key water quality monitoring section, and collect the current ambient light data while shooting the river surface spectral data, and perform spectral reflectance calibration, so as to serve as data support for water surface water quality assessment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the external structure of the pan / tilt platform of the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the pan / tilt platform of the utility model;

[0014] Figure 3 This is a schematic diagram of dismantling the installation box of the utility model.

[0015] In the figure: 1-pan head, 2-photometer, 3-wheel spectrometer, 4-sky light window, 5-installation box, 6-filter motor, 7-deflector, 8-deflector motor, 9-water surface window, 10-lens, 11-microwave level meter. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-3The utility model provides a technical solution: a water quality multi-spectral camera with an ambient light calibration device, including a pan head 1, a photometer 2 is installed above the pan head 1, a wheel spectrometer 3 is installed inside the pan head 1, a filter motor 6 is installed on one side of the wheel spectrometer 3, which is electrically connected to an external power supply and controlled by a control switch, a mounting box 5 is installed inside the pan head 1, a deflection plate motor 8 is embedded and installed on the mounting box 5, which is electrically connected to an external power supply and controlled by a control switch, a deflection plate 7 is installed inside the mounting box 5, the pan head 1 drives the entire spectrum camera to a preset field of view point, the photometer 2 collects the current ambient light intensity before shooting, and the industrial control box module set inside the pan head 1 analyzes and obtains a suitable integration time, (the industrial control box module is a prior art and will not be described in detail here), and the shooting parameters of the wheel spectrometer 3 are modified. In this embodiment, a lens 10 is installed on the other side of the wheel spectrometer 3, and a microwave level meter 11 is installed below the pan head 1 to measure the water level depth using microwave technology. In this embodiment, a skylight window 4 is installed above the pan-tilt head 1 to facilitate the skylight to enter the deflector 7. In this embodiment, a water surface window 9 is embedded and installed below the pan-tilt head 1. In this embodiment, one end of the output shaft of the deflector motor 8 passes through the inside of the mounting box 5, and the deflector motor 8 is used to control the flipping of the deflector 7. After the shooting starts, the filter motor 6 drives the filter to rotate and shoot, and at the same time, the deflector motor 8 switches the deflector state. State 1: The gray plate of the deflector 7 faces the lens 10, and the skylight enters the gray plate of the deflector 7 from the skylight window 4 and enters the lens 10 after reflection. State 2: The mirror surface of the deflector 7 faces the lens 10, and the water surface reflected light enters the mirror surface of the deflector 7 from the water surface window 9 and enters the lens 10 after reflection. When the wheel-type spectrometer 3 completes a cycle of shooting tasks, the pan-tilt head 1 moves to the preset next field of view point for shooting.

[0018] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0019] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water quality multispectral camera with an ambient light calibration device, comprising a pan / tilt platform (1), characterized in that: A photometer (2) is installed above the pan-tilt head (1), a wheel-type spectrometer (3) is installed inside the pan-tilt head (1), a filter motor (6) is installed on one side of the wheel-type spectrometer (3), a mounting box (5) is installed inside the pan-tilt head (1), a deflection plate motor (8) is embedded and installed on the mounting box (5), and a deflection plate (7) is installed inside the mounting box (5).

2. The water quality multispectral camera with ambient light calibration device according to claim 1, characterized in that: A lens (10) is installed on the other side of the wheel-type spectrometer (3), and a microwave liquid level meter (11) is installed below the pan / tilt platform (1).

3. The water quality multispectral camera with ambient light calibration device according to claim 1, characterized in that: A skylight window (4) is installed above the pan / tilt platform (1).

4. The water quality multispectral camera with an ambient light calibration device according to claim 1, characterized in that: A water surface window (9) is embedded and installed below the pan / tilt platform (1).

5. The water quality multispectral camera with ambient light calibration device according to claim 1, characterized in that: One end of the output shaft of the deflection plate motor (8) passes through the interior of the installation box (5), and the deflection plate motor (8) is used to control the flipping of the deflection plate (7).

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