Underwater demarcation instrument based on visible light

Abstract

The utility model discloses an underwater demarcation instrument based on visible light, and belongs to the field of water quality monitoring. An underwater demarcation instrument based on visible light comprises a U-shaped shell with two sets of side shells, a photoreceptor is fixedly connected to the side shell at the left end of the U-shaped shell, an LED lens is fixedly connected to the side shell at the right end of the U-shaped shell, the working end of the LED lens faces the photoreceptor, and a connecting handle is fixedly connected to the top of the U-shaped shell; according to the utility model, the solid-liquid interface diagnosis of a high-turbidity scene can be realized, the detection data interference caused by a high-turbidity water body is eliminated, and the problems of signal misinformation and unreliable detection data of a traditional interface instrument are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality monitoring, in particular to an underwater boundary meter based on visible light. Background Art

[0002] A demarcation meter is a device used to measure distance and identify objects underwater. It usually uses visible light cameras and related imaging technologies, as well as sensors such as lasers or sonars, to achieve underwater distance measurement and object recognition. This device is usually used in underwater engineering, underwater archaeology, underwater detection and other fields.

[0003] At present, when monitoring relatively turbid water bodies in mining pools, underwater engineering, underwater archaeology and underwater detection, due to the turbidity of the water in the ore body, the traditional boundary meter has problems of false signal and unreliable interface detection, which can easily cause errors in detection. Therefore, it is urgent to design an underwater boundary meter based on visible light to improve the detection accuracy. Utility Model Content

[0004] The utility model aims to solve the problems of false signal reports and unreliable interface detection in the boundary meter in the prior art, which easily cause errors in detection, and proposes an underwater boundary meter based on visible light.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A visible light based underwater demarcation instrument comprises a U-shaped shell with two sets of side shells, a photoreceptor is fixedly connected to the left side shell of the U-shaped shell, an LED lens is fixedly connected to the right side shell of the U-shaped shell, a working end of the LED lens faces the photoreceptor, and a connecting handle is fixedly connected to the top of the U-shaped shell.

[0007] In order to facilitate the installation of the LED lens, preferably, a first cavity is opened on the U-shaped shell, and the LED lens is arranged in the first cavity.

[0008] In order to facilitate the installation of the photoreceptor, preferably, a second cavity is opened on the U-shaped shell, the photoreceptor is arranged in the second cavity, and a control component is fixedly connected in the second cavity, and the control component cooperates with the photoreceptor.

[0009] In order to improve the control effect, preferably, the control component includes an optical signal receiving and processing circuit board and a drive control circuit board.

[0010] In order to facilitate external connection of the connecting handle, preferably, a connecting hole is provided on the connecting handle.

[0011] In order to improve the service life of the U-shaped shell, preferably, the material of the U-shaped shell is steel or aluminum.

[0012] Compared with the prior art, the utility model provides an underwater boundary meter based on visible light, which has the following beneficial effects:

[0013] 1. This underwater boundary meter based on visible light can realize solid-liquid interface diagnosis in high turbidity scenes through self-diagnosis function, eliminates the interference of detection data caused by high turbidity water, and solves the problems of false alarm of traditional interface meter signals and unreliable detection data;

[0014] 2. The underwater demarcation instrument based on visible light emits light through the LED lens, which is completely harmless to the human body and improves the safety of users;

[0015] 3. The underwater boundary meter based on visible light has low cost by sampling visible light LED as a communication carrier in the device.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model can realize the solid-liquid interface diagnosis in high turbidity scenes, eliminate the interference of detection data caused by high turbidity water bodies, and solve the problems of false alarm of traditional interface instrument signals and unreliable detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of an underwater demarcation instrument based on visible light proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure inside the first cavity of an underwater boundary meter based on visible light proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the interior of the second cavity of an underwater boundary meter based on visible light proposed by the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the structure of a plane of an underwater boundary meter based on visible light.

[0021] In the figure: 1, U-shaped shell; 101, first cavity; 102, second cavity; 2, photoreceptor; 3, LED lens; 4, connecting handle; 401, connecting hole; 5, optical signal receiving and processing circuit board; 501, drive control circuit board. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] Example:

[0025] Reference Figure 1-Figure 4 A visible light based underwater boundary meter comprises a U-shaped shell 1 with two sets of side shells, and the U-shaped shell 1 is made of steel or aluminum to prevent oxidation of the shell, which are respectively a left side shell and a right side shell, and a first cavity 101 is opened on the right side shell of the U-shaped shell 1, and an LED lens 3 is arranged in the first cavity 101, and a second cavity 102 is opened on the left side shell of the U-shaped shell 1, and a photoreceptor 2 is arranged in the second cavity 102, and the working end of the LED lens 3 faces the photoreceptor 2, which is used to transmit light to the receiving end of the photoreceptor 2.

[0026] In addition, refer to Figure 2 and Figure 3In the second cavity 102, an optical signal receiving and processing circuit board 5 and a drive control circuit board 501 are also arranged. The optical signal receiving and processing circuit board 5 is composed of circuit modules, namely a main control module, an LED driving module, a carrier communication module, an optical receiving and amplifying module and a posture detection module. The optical receiving and amplifying module is used to receive the optical signal and transmit it to the main control board after receiving the optical signal. After the signal is processed, the main control board uploads the data to the water through carrier communication. The drive control circuit board 501 is provided with an LED driving module, which can be used to drive the LED lens 3. The main control module controls the LED lens 3 by sending a PWM signal. The LED works and emits a signal of a certain frequency, and the attitude detection module transmits the sensed data to the main control board by sensing the current attitude of the visible light demarcation instrument. After signal processing, the main control board uploads the data to the water through carrier communication; and the main control board module serves as the brain of the entire visible light demarcation instrument and is responsible for the operation of the entire visible light demarcation instrument function. It includes a main control chip, a step-down conversion circuit and a carrier circuit. All of the above parts can provide safe and reliable hardware requirements for the detection system in the device. Visible light is emitted through the LED lens 3. Compared with ultrasonic and laser detection, visible light communication technology is used to improve detection accuracy.

[0027] Moreover, a connecting handle 4 is installed on the top of the U-shaped shell 1, and a connecting hole 401 is opened on the connecting handle 4, which can be used to connect and install cables or connectors, so that the descent depth of the U-shaped shell 1 under water can be adjusted. In this device, the detection distance can be up to 15m, and the detection accuracy will not change with the increase of depth, thereby ensuring the accuracy of its detection. Compared with laser detection, the light emitted by this device is completely harmless to the human body, which improves the safety of the user. It also has a self-diagnosis function, which can realize the solid-liquid interface diagnosis of high turbidity scenes, eliminate the interference of detection data caused by high turbidity water bodies, and solve the problems of false alarm of traditional interface instrument signals and unreliable detection data. In addition, this device uses visible light LED as a communication carrier, which is relatively low in cost.

[0028] Because underwater optical communication channels are uncontrollable and there are refraction and reflection between water bodies of different concentrations, reliable software algorithms are needed to support stable visible light communication rates and accurate water quality monitoring. Software algorithms can be divided into transmitter drivers and receiver filter and demodulation drivers according to the different functions carried by the components. The transmitter driver mainly encodes and modulates the data in a specific format to increase the signal's anti-interference ability and provide a certain degree of error detection and recovery, and then transmits it through the LED at a specific frequency. The receiver program mainly performs digital filtering and demodulation on the received signal to provide optical communication physical layer access for the upper network stack. At the same time, the received signal is filtered, strength evaluated and divided, providing the host computer with up to 10 levels of water quality classification capabilities, and throwing out warning information when water quality monitoring information is abnormal, so as to achieve fast and accurate water quality monitoring.

[0029] The working principle is as follows. When the visible light boundary meter system is powered on and starts working, the device is lowered at a uniform speed through the cable connected to the connecting handle 4. As the underwater water quality of the mining pool gradually changes, the visible light boundary meter can detect different levels, from clear to turbid levels, decreasing from level 10. When the device reaches the bottom, the water quality level is level 0, and the attitude detector will also show that the boundary meter has touched the bottom. Then slowly retract the device and check the detection data.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An underwater boundary meter based on visible light, comprising a U-shaped shell (1) with two sets of side shells, characterized in that: A photoreceptor (2) is fixedly connected to the left side shell of the U-shaped shell (1), an LED lens (3) is fixedly connected to the right side shell of the U-shaped shell (1), a working end of the LED lens (3) faces the photoreceptor (2), and a connecting handle (4) is fixedly connected to the top of the U-shaped shell (1).

2. The underwater boundary meter based on visible light according to claim 1, characterized in that: The U-shaped shell (1) is provided with a first cavity (101), and the LED lens (3) is arranged in the first cavity (101).

3. The underwater boundary meter based on visible light according to claim 1, characterized in that: The U-shaped shell (1) is provided with a second cavity (102), the photoreceptor (2) is arranged in the second cavity (102), a control component is fixedly connected in the second cavity (102), and the control component cooperates with the photoreceptor (2).

4. The underwater boundary meter based on visible light according to claim 3, characterized in that: The control component comprises an optical signal receiving and processing circuit board (5) and a driving control circuit board (501).

5. The underwater boundary meter based on visible light according to claim 1, characterized in that: The connecting handle (4) is provided with a connecting hole (401).

6. The underwater boundary meter based on visible light according to claim 1, characterized in that: The U-shaped shell (1) is made of steel or aluminum.

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