CN106053395A - Water transparency measuring device and method - Google Patents

Abstract

A water body transparency measurement device and a measurement method thereof, the water body transparency measurement device includes a transparency disc (2), a connecting line (29) with a scale for winding and unwinding via a hoist (17), a photographing device (28) and a processing A device (8), a transparent plate (2) with a central through hole is detachably provided with a counterweight (3) on the lower surface via a connecting rod (7) passing through the central through hole, and the transparent plate (2) is on the upper surface The surface is provided with a photosensitive sensor (5) and a plurality of decompression holes (6), the photosensitive sensor (5) measures the light intensity of the water body and sends the light intensity data to the processor (8), and the photographing device (28) vertically photographs the Transparency disk (2) and the photographed image is sent to the processor (8), when the light intensity data is less than a predetermined threshold and/or the transparency disk (2) cannot be identified in the photographed image, the processor (8) controls the winch (17) Stop unwinding and determine the scale value.

Description

Water body transparency measuring device and its measuring method

technical field

The invention relates to the technical field of environmental water quality monitoring and hydrological measurement, in particular to a water body transparency measurement device and a water body transparency measurement method thereof.

Background technique

With the increasing intensity and speed of water resources development and utilization and people's increasing awareness of ecological environment, water environment issues are gradually being paid attention to at home and abroad. At present, water environment is the focus of domestic environmental protection and project environmental assessment related work.

In the environmental monitoring of oceans and lakes, transparency is usually a water quality index for routine monitoring. It reflects the light transmission ability of water bodies and is closely related to the concentration of suspended sediment in water bodies and the content of colored solutes. With the continuous development of ocean detection technology, the measurement of seawater transparency is becoming more and more important in the development of underwater optical imaging technology. This parameter provides an important basis for the performance evaluation of underwater optical imaging system and the analysis of factors affecting underwater imaging quality.

At present, the transparency measurement in the prior art is still manually observed through the transparency disk (SecchiDisk). Pure white disc. The disc body is placed on a line, and slowly sinks with the disc body in the water until the disc body descends to a certain depth. When the disc is just no longer visible, the depth is used as a technical parameter to measure the transparency of the water. As a commonly used physical index in water quality monitoring, water transparency is an intuitive index used to describe the physical and chemical properties of natural water bodies such as lakes and rivers. However, due to the complex ecological environment of various water bodies in nature, it is often necessary to accurately measure the transparency under the environment of high flow velocity and strong wind and waves. Since the diameter of the transparency disk is large and is suspended by a soft rope, the rope cannot be kept vertical in these environments. Straight, the transparency disk also often shifts, making the measured value and the actual value have a large error. In the current actual detection work, methods such as measuring tape instead of sampling rope and increasing the weight of the sinker are usually used, but this problem cannot be completely and effectively solved.

At present, there are large errors in the actual operation of the existing technology, mainly due to the following interference factors: (1) the influence of water flow, the water body flow velocity is often faster in large rivers, and even in lakes, waves will be formed due to the action of wind. Under the impact of the water flow, the tape measure will be tilted, which will cause the black and white disk to shift accordingly, resulting in inaccurate readings; (2) the influence of light intensity, the light intensity of different sampling days is often different due to weather reasons, and the light intensity and observation The results of the readings are closely related, and the observed results are often smaller when the light intensity is weak; (3) Human error. At present, when using a black and white disk for measurement, it is usually necessary to stand on a boat and use the naked eye to observe the scale of the water surface tape. Ships of different specifications will cause differences in the observation angle between the line of sight and the tape, resulting in errors.

Chinese patent document CN204594878U discloses a measuring disc used for high-velocity water transparency detection, including a submerged water transparency disc (6), a sinker (7), and a connecting steel wire (3), and the connecting steel wire (3) is sheathed A multi-section hollow tube casing (2) that can be freely expanded and contracted, the lower end of the connecting steel wire (2) is fixed in the hollow casing (2) of the last section, and the upper end of the connecting steel wire (3) is from the top position The hollow casing protrudes to form a telescopic multi-section combined hollow casing assembly controlled by connecting steel wires; the submerged water transparency disc (6) is connected to the last section hollow casing (2) through a screw rod (5) ) connection, and a sinker (7) is set at the bottom of the submerged water transparency disc (6), thereby forming a free fall mechanism for pulling the connecting steel wire (3). This patent uses metal rods instead of ropes, which can be used for transparency measurement of ordinary fresh water bodies and fresh water bodies with high wind waves and high flow speeds, and overcomes the tendency of ordinary transparency discs to drift when used in fresh water bodies with high wind waves and high flow speeds, resulting in inaccurate readings However, this document cannot adapt to the measurement of water bodies with different flow rates, nor can it overcome the influence of light intensity and human error, the measurement accuracy is not high, and the safety of the measurement personnel cannot be guaranteed during operation, and the applicability is small.

Chinese patent document CN204789332U discloses a new type of water transparency measuring instrument, which includes a transparency disc, a measuring rope connected with the transparency disc and a winding device, and also includes a counterweight and a connecting rod movably connected with the transparency disc. The number of counterweights is 1 to 5, the connecting rod runs through the transparency plate and is connected to at least one counterweight, the counterweight is detachably connected to the counterweight, and the top of the connecting rod is provided with a connecting The measuring rope is fixedly connected with the connecting ring, and the bottom surface of the counterweight at the bottom is provided with a metal collar, and the metal collar can be used to connect the counterweight, which can be configured with different counterweights for different users, so that the user When in use, it can freely increase or decrease the counterweight for different types of water bodies, better adapt to strong current sea areas, ensure the vertical settlement of the transparent instrument, and realize accurate measurement of water transparency, but it cannot overcome the influence of light intensity and human error, and the measurement accuracy is not good. High, and when operating, the safety of the measuring personnel cannot be guaranteed, and the applicability is small.

Chinese patent document CN105424657 A discloses a kind of automatic positioning measuring instrument for water quality transparency, which comprises a Saib disk (1) and a scale rod (6). ) is hollow inside, a magnetic conductor (8) is arranged inside the scale rod (6), a coil (2) is arranged on the magnetic conductor (8), and an oscillation circuit (7), a power switch (3), Battery (9); battery (9), power switch (3), oscillating circuit (7), coil (2) are electrically connected, and a movable buoy (5) is set in the middle part of the scale rod (6), and the movable buoy (5) ) is provided with hoop (4) in the inner ring. The buoy is positioned by an electromagnet, which can make the measurement reading more accurate, improve the measurement accuracy, and has a simple structure, but its defect is that it cannot adapt to the measurement in water bodies with various flow rates and complex water regimes, and cannot overcome the influence of light intensity and human errors. The measurement accuracy is not high, and the safety of the measuring personnel cannot be guaranteed during operation, and the applicability is small.

Contents of the invention

The object of the present invention is to provide a kind of measuring device that can be adapted to measure the transparency of water bodies in various flow velocities and complex water regimes, which overcomes the influence of water flow, light influence and human error, and has high measurement accuracy, automatic measurement process and simple operation , further, the safety of the measuring personnel is ensured, and further, it is applicable to various situations such as shore water body and far away from shore water body, and avoids interference from ships when measuring far away from shore water body.

The purpose of the present invention is to be achieved through the following technical solutions.

According to one aspect of the present invention, the water body transparency measurement device includes a transparency disc, a connecting line with a scale for winding and unwinding via a winch, a photographing device, and a processor. The connecting rod of the through hole is detachably provided with a counterweight, the bottom end of the connecting rod is provided with a ring, and the upper surface of the transparency plate is provided with a photosensitive sensor and a plurality of decompression holes, and the photosensitive sensor measures the water body light intensity and send the light intensity data to the processor, one end of the connecting line is connected to the connecting rod, the other end of the connecting line is connected to the winch, the photographing device shoots the transparency disk vertically and sends the captured image to the processor, when the light When the strong data is less than the predetermined threshold and/or the transparency disk cannot be identified in the captured image, the processor controls the hoist to stop unwinding and determines the scale value.

Preferably, it includes a support part and a connecting part, wherein the support part includes a storage box and four adjustable supports, and the adjustable supports are screwed on the four corners of the bottom of the storage box to hold the The storage box is horizontal and stable, and the top surface of the storage box is provided with a screw connection hole, and one side of the storage box can be opened to accommodate the disassembled connection part; the connection part consists of a bracket, a plurality of spiral hard tubes, pulleys and The hoist is composed of a hoist, wherein the bracket is composed of a cross bar, a vertical bar, an arc connector and an elastic element, the bottom of the vertical bar is provided with threads and can be threadedly matched with the screw connection hole, and the horizontal bar and the vertical bar It can be pivotally connected, and the arc-shaped connecting piece with angle scale fixes the cross bar and the vertical bar according to the set angle. The elastic element connects the proximal end of the cross bar and the through hole in the middle of the vertical bar. The sleeve of the hard tube, a plurality of the spiral hard tubes have scales and can be spirally connected to each other to form a set length of spiral hard tube rods, and the hoist that is detachably fixed on the first spiral hard tube can be rewound and unwound A connecting line with a scale, the connecting line is vertically connected to the transparency disc through the support of the pulley arranged on the farthest helical hard tube, and the shooting device is provided under the pulley.

Preferably, the photographing device is a camera.

Preferably, the elastic element is a coil spring.

Preferably, a plurality of through holes for connecting the elastic elements are arranged in the middle of the vertical rod.

Preferably, the power supply is also provided with a power switch, and the power supply is a rechargeable battery.

Preferably, the proximal end of the first helical hard tube is provided with a first bayonet for clamping the winch and a second bayonet for clamping the power supply.

Preferably, the transparency discs are divided into six or eight black and white parts, and the connecting lines with scales are nylon ropes or steel ropes.

Preferably, the processor is provided with a display screen.

According to another aspect of the present invention, a water transparency measurement method using a water transparency measurement device includes the following steps.

In the first step, the hoist unwinds the connecting line with scale, so that the transparency disc falls vertically downward.

In the second step, the photosensitive sensor measures the light intensity of the water body, and the shooting device takes an image of the transparency disc in the water body.

In the third step, when the light intensity data is less than a predetermined threshold and/or the transparency disk cannot be identified in the photographed image, the processor controls the winch to stop unwinding and determines a scale value.

The above description is only an overview of the technical solution of the present invention. In order to make the technical means of the present invention clearer, to the extent that those skilled in the art can implement it according to the contents of the description, and to enable the above and other purposes of the present invention, The features and advantages can be more obvious and understandable, and the specific implementation manners of the present invention are illustrated below for illustration.

Description of drawings

Various other advantages and benefits of the present invention will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings in the description are for the purpose of illustrating preferred embodiments only and are not to be considered as limiting the invention. Obviously, the drawings described below are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to these drawings without creative efforts. Also throughout the drawings, the same reference numerals are used to denote the same parts. In the attached picture:

Fig. 1 is a schematic structural view of a water body transparency measuring device according to an embodiment of the present invention;

Fig. 2 is a schematic structural view of a water body transparency measuring device according to another embodiment of the present invention;

Fig. 3 is a schematic diagram of steps of a method for measuring water transparency using a water transparency measuring device according to an embodiment of the present invention.

The present invention will be further explained below in conjunction with the accompanying drawings and embodiments.

detailed description

Specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although specific embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and is not limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

It should be noted that certain terms are used in the specification and claims to refer to specific components. Those skilled in the art should understand that they may use different terms to refer to the same component. The specification and claims do not use differences in nouns as a way of distinguishing components, but use differences in functions of components as a criterion for distinguishing. "Includes" or "comprises" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". The subsequent description in the specification is a preferred implementation mode for implementing the present invention, but the description is for the purpose of the general principles of the specification, and is not intended to limit the scope of the present invention. The scope of protection of the present invention should be defined by the appended claims.

In order to facilitate the understanding of the embodiments of the present invention, several specific embodiments will be taken as examples for further explanation below in conjunction with the accompanying drawings, and each drawing does not constitute a limitation to the embodiments of the present invention.

FIG. 1 is a schematic structural diagram of a water transparency measuring device according to an embodiment of the present invention, and the embodiment of the present invention will be described in detail with reference to FIG. 1 .

A kind of water body transparency measurement device comprises transparency disk 2, the connecting wire 29 with scale, photographing equipment 28 and processor 8 that wind up and unwind via winch 17, and the transparency disk 2 that is provided with central through hole passes through this on the lower surface. The connecting rod 7 in the central through hole is detachably provided with a counterweight 3, the bottom end of the connecting rod 7 is provided with a ring 9, and the transparent disk 2 is provided with a photosensitive sensor 5 and a plurality of decompression holes on the upper surface 6. The photosensitive sensor 5 measures the light intensity of the water body and sends the light intensity data to the processor 8, one end of the connecting line 29 is connected to the connecting rod 7, the other end of the connecting line 29 is connected to the winch 17, and the shooting device 28 vertically shoots the described Transparency disk 2 and the captured image is sent to the processor 8, when the light intensity data is less than a predetermined threshold and/or the transparency disk 2 cannot be identified in the captured image, the processor 8 controls the winch 17 to stop unwinding and determine the scale value .

Preferably in this embodiment, the transparency disc 2 is a black and white disc with a diameter of 35-40 cm, and the transparency disc 2 is divided into six or eight black and white parts. Pressure hole 6. The decompression hole 6 is preferably arranged near the edge of the transparency disc 2 to reduce the resistance caused by the buoyancy of the water body when entering the water. The transparency disc 2 is provided with a central through hole, and on the lower surface of the transparency disc 2, a counterweight 3 is detachably provided through a connecting rod 7 passing through the central through hole. The rod body of the connecting rod 7 can be a standard sleeve-shaped bolt, so The rod body length of the connecting rod 7 is 10-15 cm, and the specific length value is equal to the thickness of the transparency plate 2 plus the sum of the thicknesses of all counterweights 3 . For example, the number of counterweights 3 is three, and the connecting rod 7 runs through the central through hole of the transparency disc 2 to connect with the counterweights 3. The counterweights 3 are cylindrical with threaded rods on one side and threaded grooves on the other side. The structure is that the connecting rod 7 is spirally connected to the threaded grooves of the counterweights 3, and the counterweights 3 are detachably connected through the provided threaded rods and threaded grooves, and the length of the threaded rods is half the thickness of the counterweights. The depth of the thread groove is half of the thickness of the counterweight 3 . The top end of the connecting rod 7 is provided with a connecting buckle for connecting the connecting wire 29, and the bottom end of the counterweight 3 is provided with a ring 9 for connecting the counterweight 3, wherein the ring 9 can screw lock the counterweight on the connecting rod 7, for example. 3. The connecting rod 7 passes through the central through hole of the transparency disc 2 and connects the threaded groove on the counterweight 3 to ensure their seamless connection. The three counterweights 4 are respectively 5kg, 3kg and 1kg from top to bottom. The size and weight of each counterweight 3 can be different, but the interface is the same, and users can purchase corresponding configurations according to their needs. Even in strong current sea areas, users can carry out sea experiments by increasing the counterweight 3 to avoid the high tilt of the equipment and achieve accurate measurement of transparency. The photosensitive sensor 5 is arranged on the transparency disc 2, preferably near the central through hole. The photosensitive sensor 5 measures the light intensity of the water body and sends the light intensity data to the processor 8. The photosensitive sensor 5 is, for example, a photoresistive sensor. The photosensitive sensor 5 monitors the light intensity in the water body and sends the light intensity data to the processor 8 . One end of the connecting wire 29 is connected to the connecting rod 7, and the other end of the connecting wire 29 is connected to the hoist 17, and the hoist 17 has a scaled connecting wire 29 for rewinding and unwinding. Controlled rewinding and unwinding connection line 29 and record the length of rewinding and unwinding, the photographing device 28 vertically photographs the transparency disc 2 and sends the photographed image to the processor 8, the photographing device 28 can be a camera, preferably, the photographing device 28 may be a high resolution camera. The processor 8 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit ASIC, a field programmable gate array FPGA, an analog circuit, a digital circuit, a combination thereof, or other known or later-developed processors. The processor 8 receives the light intensity data sent by the photosensitive sensor 5 and the photographed image sent by the shooting device 28, and the processor 8 can preset the light intensity data in the water body that the transparency disc 2 cannot be recognized by the naked eye as a predetermined threshold. Further, the predetermined threshold It can be further revised according to the specific situation. When the light intensity data is less than a predetermined threshold and/or the transparency disk 2 cannot be identified in the photographed image, the processor 8 controls the winch 17 to stop unwinding and determines a scale value. Preferably, the processor 8 may be provided with an image recognition module to automatically recognize the identifiability of the captured images. In addition, the processor 8 may include a display screen for the user to visually recognize the captured images. Preferably, the hoist 17 includes a counting device, and when the hoist 17 stops unwinding, the counting device sends the unwinding length to the processor 8 .

Under the action of the counterweight, the water transparency measuring device can not only be used in waters with high flow velocity and complex water regime, but also can maintain the vertical measurement of the device and improve the measurement accuracy. Since the device uses a photosensitive sensor and a processor, The measurement is automated, and the measurement accuracy is further improved. In addition, the measurement accuracy can be further improved by identifying and shooting images. The device automatically retracts and unwinds the roll through the hoist to make the measurement process automatic and easy to operate.

Fig. 2 is a schematic structural diagram of a water transparency measuring device according to another embodiment of the present invention. Referring to FIG. 2 , the water body transparency measuring device includes a transparency disc 2 , a connecting line 29 with a scale that is wound and unwound via a winch 17 , a photographing device 28 and a processor 8 , a support part 1 and a connecting part 4 . The support part 1 includes a storage box 10 and four adjustable supports 11 at the bottom of the storage box 10, and the adjustable supports 11 are screwed on the four corners of the bottom of the storage box 10 to hold the The storage box 10 is horizontal and stable, and the top surface of the storage box 10 is provided with a screw connection hole 12 , and one side 13 of the storage box 10 can be opened to accommodate the disassembled connection part 4 and the transparency disc 2 . There are four adjustable supports 11 that can be adjusted to different heights, and the support part 1 can be applied to uneven ground, for example, the bank of the sampling water area is an uneven bank or the edge of a ship. The housing box 10 provides support and accommodates the connecting portion 4 and the transparency disc 2 . The storage box of the present invention adopts a side-opening type that will not affect the supporting functions of the bottom and the top. Therefore, the support part 1 can provide horizontal and stable support, and can accommodate the detachable connecting part 4 and transparency during non-sampling. The disc 2 makes the water body transparency measuring device of the present invention convenient to carry and save space.

The connecting part 4 is made up of a support 14 , a plurality of spiral hard pipes 15 , a pulley 16 and a hoist 17 . The support 14 is made up of a cross bar 18, a vertical bar 19, an arc connector 20 and an elastic element 21. The bottom of the vertical bar 19 is provided with threads and can be threadedly matched with the screw connection hole 12. The cross bar 18 It is pivotally connected with the vertical bar 19, and the arc connecting piece 20 with angle scale fixes the horizontal bar 18 and the vertical bar 19 according to the set angle, and the elastic element 21 connects the proximal end of the horizontal bar 18 and the channel in the middle of the vertical bar 19. hole 22, the crossbar 18 is provided with a sleeve 23 for fixing the helical hard tube 15, and a plurality of the helical hard tubes 15 have scales and can be spirally connected to each other to form a set length of helical hard tube rods, wherein the first The proximal end of the helical hard tube 24 is provided with the first bayonet 25 for clamping the winch 17 and the second bayonet 27 for clamping the power supply 26, and the far end of the helical hard tube at the end is provided with a clamping pulley 16, which can be detachably fixed. The hoist 17 on the first helical hard tube 24 can wind up and unwind a scale connection line 29 , and the connection line 29 and the cable 30 are vertically connected to the transparency disc 2 through the pulley 16 support. The bracket 14 and the spiral hard tube of the connecting part 4 can be disassembled, and the assembly is simple. Through the arc-shaped connecting piece 20 with an angle scale, the horizontal bar 18 and the vertical bar 19 can be fixed according to the set angle, so that they are fixed on the horizontal bar. The helical hard pipe rod formed by a plurality of helical hard pipes on the 18 can extend into sampling waters at different angles, and is suitable for sampling operations under different conditions. The elastic element 21 can increase the moment arm effect of the proximal end to make the connecting part more stable. The elastic elements can be connected to the through holes 22 at different positions in the middle of the vertical bar 19 to apply different elastic forces as required. The hoist 17 and the pulley 16 together wind up and unwind the connecting wire 29 and then lift and lower the transparency disc 2 .

The transparency disc 2 provided with a central through hole is detachably provided with a counterweight 3 on the lower surface via a connecting rod 7 passing through the central through hole, the bottom end of the connecting rod 7 is provided with a ring 9, and the transparent disc 2 The upper surface is provided with a photosensitive sensor 5 and a plurality of decompression holes 6. The photosensitive sensor 5 measures the light intensity of the water body and sends light intensity data to the processor 8. One end of the connecting line 29 is connected to the connecting rod 7, and the connecting line 29 The other end of the other end is connected to the winch 17, and the photographing device 28 vertically photographs the transparency disc 2 and sends the photographed image to the processor 8. When the light intensity data is less than a predetermined threshold and/or the transparency disc 2 cannot be identified in the photographed image , the processor 8 controls the winch 17 to stop unwinding and determines the scale value. A water transparency measuring device includes a transparency disc 5.

When the user arrives at the measurement area, according to the terrain conditions and the required measurement points, the user adjusts the angle of the adjustable support 11 of the support part 1 and the arc connector 20 of the adjustment connection part 4, and the elastic force will be adjusted according to the needs. The connection of the elastic element 21 corresponds to the connection through hole 22, and the length of the assembled spiral hard tube rod is determined according to the distance of the measurement point from the support part 1. Along with the unwinding of the hoist 17, the transparency disc 2 enters the measurement point in the water, and unwinds according to the required depth.

In this embodiment, the device can be applied to any measurement water area, such as the shore or places away from the shore that require ships. In the existing measurement, the hand-held transparency measurement device is prone to shaking and tilting, resulting in errors, and If the water body is measured on a ship, safety accidents such as falling into the water are prone to occur. In addition, due to the influence of the ship, it is easy to interfere with the measurement of the water body measurement point. , can also be used on ships, and due to the support of the connecting part, the influence of the ship on the measurement is prevented, and the safety of the measuring personnel is also ensured. The above-mentioned errors are avoided due to the automation of the water transparency measuring device.

In one embodiment, the top surface of the containing box 10 is provided with a plurality of screw connection holes 12 for connecting a plurality of vertical rods 19 .

In one embodiment, the containment box 10 is made of rigid plastic.

In one embodiment, the elastic element 21 is a coil spring.

In one embodiment, a plurality of through holes 22 for connecting the elastic elements 21 are arranged in the middle of the vertical rod 19 .

In one embodiment, the power supply 26 is also provided with a power switch.

In one embodiment, power source 26 is a rechargeable battery.

In one embodiment, the connecting wire 29 with scale is a nylon rope or a steel rope.

FIG. 3 is a schematic diagram of the steps of the water transparency measurement method of the present invention, and the embodiment of the present invention will be described in detail with reference to FIG. 3 .

Referring to FIG. 3 , the method for measuring water body transparency using a water body transparency measuring device according to an embodiment of the present invention includes the following steps.

In the first step S1, the hoist 17 unwinds the connecting line 29 with scale, so that the transparency disc 2 falls vertically downward.

In the second step S2, the photosensitive sensor 5 measures the light intensity of the water body, and the photographing device 28 captures an image of the transparency disc in the water body.

In the third step S3, when the light intensity data is less than a predetermined threshold and/or the transparency disc 2 cannot be identified in the captured image, the processor 8 controls the winch 17 to stop unwinding and determine the scale value.

It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and not to limit the present invention. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention shall fall within the protection scope of the present invention. Furthermore, it is intended that the appended claims of the present invention embrace all changes and modifications that come within the scope and metesques of the appended claims, or equivalents of such scope and metes and bounds.

Claims (10)

1. a water transparency measurement apparatus, it include transparent scale (2), via hoist engine (17) rolling and unreel with The connecting line (29) of scale, capture apparatus (28) and processor (8), it is characterised in that: it is provided with the transparent scale (2) of central through hole Counterweight (3) removably it is provided with via the connecting rod (7) running through this central through hole, the end of described connecting rod (7) at lower surface End is provided with annulus (9), and described transparent scale (2) is provided with light sensor (5) and multiple vent (6) at upper surface, described Light sensor (5) is measured water body light intensity and sends light intensity data to processor (8), one end described company of connection of connecting line (29) Extension bar (7), the other end of connecting line (29) connects hoist engine (17), and capture apparatus (28) vertically shoots described transparent scale (2) And shooting image is sent to processor (8), None-identified in described light intensity data is less than predetermined threshold and/or shooting image During described transparent scale (2), processor (8) controls hoist engine (17) and stops unreeling and determining scale value.

2. water transparency measurement apparatus as claimed in claim 1, it is characterised in that: include abutment portion (1) and connecting portion Dividing (4), wherein, described abutment portion (1) includes storage case (10) and four support with adjustables (11), described support with adjustable (11) spiral is connected on four angles of storage case (10) bottom keep described storage case (10) level and stablizes, described receiving The top surface of case (10) sets spiral connecting hole (12), and a side (13) of described storage case (10) can open to accommodate dismounting After coupling part (4)；Described coupling part (4) is by support (14), multiple screw hard pipe (15), pulley (16) and hoist engine (17) composition, wherein, described support (14) is by cross bar (18), montant (19), arc connector (20) and flexible member (21) group Become, described montant (19) bottom be provided with screw thread and can with described spiral connecting hole (12) threaded engagement, described cross bar (18) and erect Bar (19) pivotable connection, the described arc connector (20) of band angle index is according to set angle fixed transverse rod (18) and montant (19), flexible member (21) connects near-end and the through hole (22) at montant (19) middle part of cross bar (18), and described cross bar (18) is provided with The sleeve (23) of fixing screw hard pipe (15), multiple described screw hard pipes (15) are with scale and can connect into setting by mutually spiral The screw hard pipe bar of length, be detachably secured to described first screw hard pipe (24) hoist engine (17) can rolling and unreel band carve The connecting line (29) of degree, described connecting line (29) is supported by the pulley (16) being located on the screw hard pipe of distalmost end and vertically connects Connecing transparent scale (5), described capture apparatus (28) is provided with pulley (16) lower section.

3. water transparency measurement apparatus as claimed in claim 1, wherein, described capture apparatus (10) is photographic head.

4. water transparency measurement apparatus as claimed in claim 1, wherein, described flexible member (21) is helical spring.

5. water transparency measurement apparatus as claimed in claim 1, wherein, the middle part arrangement of montant (19) is multiple connects institute State the through hole (22) of flexible member (21).

6. water transparency measurement apparatus as claimed in claim 1, wherein, described power supply (26) is additionally provided with on and off switch, institute Stating power supply (26) is rechargeable battery.

7. water transparency measurement apparatus as claimed in claim 1, wherein, the near-end of the first screw hard pipe (24) is provided with clamping First bayonet socket (25) of hoist engine (17) and second bayonet socket (27) of clamping power supply (26).

8. water transparency measurement apparatus as claimed in claim 1, wherein, described transparent scale is and is divided into six or eight Chequered with black and white part, carrying graduated connecting line (29) is nylon rope or steel cable.

9. water transparency measurement apparatus as claimed in claim 1, wherein, described processor is provided with display screen.

10. utilizing a water transparency measuring method for water transparency measurement apparatus as claimed in claim 1, it includes Following steps:

First step (S1), hoist engine (17) unreels the graduated connecting line of band (29) so that transparent scale (2) drops vertically downward Fall；

Second step (S2), light sensor (5) measures the light intensity of water body, capture apparatus (28) shooting transparency in water body The image of dish；

Third step (S3), transparency described in None-identified in described light intensity data is less than predetermined threshold and/or shooting image During dish (2), processor (8) controls hoist engine (17) and stops unreeling and determining scale value.