A portable fishery biological body shape data measuring device

Abstract

The application relates to the field of aquatic product measurement, and particularly relates to a portable fishery biological body shape data measuring device, which comprises a storage body, a cover plate and a folding plate; the storage body comprises a shell and a controller located in the shell; the top of the shell is provided with a placing groove, the placing groove is provided with a storage platform, and the shell is provided with a weight sensor for weighing the storage platform; the weight sensor is electrically connected to the controller; the end of the cover plate is rotationally connected to the shell, the cover plate is turned over to realize the cover plate covering and opening the top of the shell; the inner side of the cover plate is provided with a plate groove for accommodating the folding plate, the plate groove is provided with a display screen electrically connected to the controller; the end of the folding plate is rotationally connected to the end of the plate groove away from the shell; and the folding plate is provided with a camera. Through the scheme, the problem that the fishery biological body shape data measuring device is inconvenient to carry is solved, and the device has the functions of multiple data synchronous measurement and intelligent reading.

Description

Technical Field

[0001] This invention relates to the field of aquatic product measurement, and more specifically to a portable device for measuring the body size data of fishery organisms. Background Technology

[0002] Aquatic products are a general term for aquatic animal and plant products and their processed products produced in marine and freshwater fisheries, all of which belong to fishery organisms. Among aquatic animals, fish are the most common. Whether aquatic products are artificially farmed or naturally grown in the ocean, it is necessary to collect relevant growth parameters such as weight, size, and length. By collecting and analyzing these growth parameters, we can understand their growth status and use them as a reference for seedling release, feed administration, disease prevention and control, and harvesting.

[0003] In addition, the measurement of the body size of marine organisms is also crucial in marine fishery resource surveys. For example, measuring parameters such as anal length and fork length of marine organisms (such as fish) is beneficial for studying their growth and development, understanding their biological characteristics, and thus understanding the status of fishery resources, grasping the dynamics and changing trends of fishery resources. The results of measurement and analysis can serve as the basic basis for making fishery resource management decisions and rationally developing and utilizing fishery resources.

[0004] Currently, these parameters are measured by using rulers and scales to measure the size and weight of the aquatic organisms, followed by manual classification, recording, summarization, and calculation. This process is extremely cumbersome.

[0005] Even though existing technologies exist for measuring aquatic products, weight and size measurements are performed using separate devices, which is cumbersome and requires carrying multiple measuring devices, causing inconvenience. Furthermore, even if current devices integrate size and weight measurements, they have the following drawbacks: 1. They are bulky, taking up considerable space and making them inconvenient to transport; 2. They cannot simultaneously and accurately measure the total length, body length, anal length, and fork length of aquatic organisms, nor can they intelligently store, calculate, and display the measurement data. Summary of the Invention

[0006] The present invention aims to provide a portable body size data measurement device for fishery organisms to solve the problem of the inconvenience of carrying current body size data measurement devices for fishery organisms.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a portable fishery organism body size data measuring device, comprising a storage body, a cover plate, and a folding plate;

[0008] The storage body includes a housing and a controller located inside the housing. The top of the housing is provided with a placement slot in which a storage platform is placed. The housing is provided with a weight sensor for weighing the storage platform; the weight sensor is electrically connected to the controller.

[0009] The end of the cover plate is rotatably connected to the housing. The cover plate can be closed on the top of the housing and opened from the top of the housing by flipping the cover plate. The inner side of the cover plate is provided with a slot for accommodating the folding plate. A display screen electrically connected to the controller is installed in the slot. The end of the folding plate is rotatably connected to the end of the slot away from the housing. The folding plate can be closed in the slot and opened from the slot by flipping the folding plate.

[0010] A camera is installed on the side of the folding plate facing the slot, and the camera and controller are electrically connected.

[0011] The principle and advantages of this design are as follows: The cover plate can flip on the main body, and the folding plate can flip on the cover plate. When not in use, the folding plate flips into the slot, covering the display screen and protecting it. Simultaneously, the cover plate is in the closed state, thus minimizing the device's bulk and facilitating its transport and handling. Because the cover plate covers the main body, the display screen is not exposed, protecting it from accidental collisions and damage during transport.

[0012] When measuring the weight of aquatic organisms, the cover is flipped open to reveal the placement platform. Then, a folding plate is opened, exposing the display screen in the slot. The aquatic organisms are placed on the placement platform, and a weight sensor detects their weight. The result is transmitted to the controller, which processes the result and sends it to the display screen. Simultaneously, after the folding plate is opened, a camera on it takes a picture of the aquatic organisms on the placement platform. The picture is transmitted to the controller, which processes the image to identify the species of aquatic organism being weighed. Finally, the display screen directly shows the species and weight information of the aquatic organisms. Thus, when weighing a batch of aquatic organisms individually, the weight information can be displayed separately for each species on the screen. Therefore, the measuring device in this solution has data measurement, intelligent reading, and display functions.

[0013] Since measurements of fish species size are typically taken at pond edges or on boats, often under bright sunlight, the folding plate, positioned above the display screen, provides some shade, preventing glare and ensuring clear visibility in bright sunlight. This solves the problem of glare obscuring the screen during outdoor measurements. The camera, mounted on the folding plate, faces the platform directly when the plate is open, allowing for direct image capture of the fish species. This is more accurate and clearer than side-view shots taken with the camera positioned to the side of the cover, enabling precise identification of fish species.

[0014] In summary, the device disclosed in this solution has a unique structure, with both the cover plate and the folding plate capable of being flipped, and this device has the advantages of being easy to use and carry.

[0015] Preferably, as an improvement, the top of the storage platform is transparent, and a sensor mounting plate is provided inside the housing below the storage platform. Multiple light sensors are mounted on the upper surface of the sensor mounting plate in a matrix arrangement. The light sensors are electrically connected to the controller, and an illumination lamp is provided on the side of the folding plate facing the slot.

[0016] Therefore, the aquatic organism is placed on a platform with a folding panel facing it. An illumination lamp shines light onto the platform. Because the top of the platform is transparent, the light passes through and reaches the light sensor, which detects the light. Since the aquatic organism is placed on the platform, its body blocks the light from the illumination lamp. The area where the platform and the organism's body are in contact forms a shadow, blocking the light sensor in this shadowed area. The light sensor transmits a signal to the controller, which calculates the aquatic organism's total length based on the shape of the shadowed area. The final display shows the aquatic organism's total length. Calculating the body length using shadow blocking is more accurate than using a camera to take pictures from above. The accuracy of image measurement is highly dependent on the camera's position. If the camera is not directly aimed at the aquatic organism, the calculated length will have a significant error. Furthermore, to ensure a large field of view, the camera is often far from the platform, which reduces the accuracy of image capture. In this solution, the fishery organisms are closer to the light sensor, and the size of the fishery organisms can be transmitted to the light sensor at close range through shadows, making the light sensor more accurate in measuring the size of the fishery organisms.

[0017] In summary, this solution utilizes an illumination lamp to emit light, and the controller calculates the total length of the aquatic organism based on the shape of the shadow cast by the organism, displaying the result on a screen. This achieves automatic measurement of the organism's total length, eliminating the need for manual measurement and simplifying operation. Furthermore, a single device can simultaneously measure both total length and weight, eliminating the need for separate devices and making it more portable. Additionally, this device features simultaneous measurement of multiple data points and intelligent data reading capabilities.

[0018] Preferably, as an improvement, the top of the housing has two sliders that slide laterally, both of which are located on the outer side of the storage platform away from the cover plate, and both sliders are equipped with pointers.

[0019] The total length of a fishery organism can be measured by the shadow it casts when blocking light. However, the length of certain segments of the organism cannot be measured using the shadow itself, as these segments fall within the shadow area. For example, the anal length (the length from the anus to the mouth) of a fish cannot be measured. To address this, this solution uses two sliders. When measuring the length of a segment of the fishery organism, sliding the two sliders moves the pointers, causing them to point to the two endpoints of the area to be measured. By measuring the distance between the two pointers or the two sliders, the length of a segment of the fishery organism can be measured. This device can also measure a wider range of data types.

[0020] Preferably, as an improvement, both sliders are equipped with laser pointers, with the pointers being the light emitted by the laser pointers. Since the pointers are light rays, the measuring personnel determine the position of the fishery organism by observing the location of the light rays emitted by the laser pointers on the organism. Because the pointers are light rays, unlike ordinary physical pointers, they cannot be touched. This ensures that the fishery organisms will not obstruct the movement of the pointers during slider movement, avoiding the situation where the pointers of physical pointer sliders touch or interfere with the fishery organisms, preventing normal movement and measurement.

[0021] Preferably, as an improvement, a resistance strip is fixedly installed inside the housing, and a metal sheet is fixedly installed on each of the two sliders. The metal sheet and the resistance strip are slidably connected, and a test meter is electrically connected between the two metal sheets and the controller.

[0022] Therefore, when measuring the length of a segment of a fishery organism, two sliders are slid so that the two pointers point to the two endpoints of the area to be measured. At this time, the meter measures the resistance or voltage of the resistance strip located between the two metal plates. The meter transmits the measurement result to the controller, which calculates the length of the segment of the fishery organism based on the measurement result and displays it on the screen. When the distance between the two endpoints of the area to be measured is different, the distance between the two sliders is also different, resulting in different lengths of the resistance strip between the two sliders. Consequently, the resistance or voltage measured by the meter will also be different, leading to different calculated lengths of the segment of the fishery organism by the controller.

[0023] With this solution, there is no need to manually read the distance between the two pointers. The controller can automatically calculate the length of a segment of the aquatic organism based on the voltage or resistance of the resistor strip located between the two metal plates and display it on the screen. Compared with manually reading the distance between the two pointers, the measurement is more accurate and the operation is simple and convenient.

[0024] Preferably, as an improvement, the side of the folding plate away from the slot is provided with a slider receiving groove, which is located near the top of the slot. Thus, when the cover plate is placed on the storage body, the slider receiving groove design allows the slider to be avoided, ensuring the cover plate can properly cover the storage body. Simultaneously, the folding plate also protects the display screen, preventing the slider from directly contacting the display screen after the cover plate is closed and damaging it.

[0025] Preferably, as an improvement, a locking unit is provided between the folding plate and the cover plate; the locking unit includes a locking block and a locking groove, with the locking block located on one component of the folding plate and the cover plate, and the locking groove located on the other component. Thus, when the folding plate is closed in the slot, the locking block is inserted into the locking groove, thereby locking the folding plate and the cover plate together, and preventing the folding plate from automatically opening from the slot.

[0026] Preferably, as an improvement, there are multiple illumination lamps arranged in a matrix. Since the folding plate is plate-shaped, it is wider than a rod-shaped plate, so more illumination lamps can be installed to increase the illumination range and solve the problem of inaccurate measurements caused by shadows cast by a single lamp.

[0027] Preferably, as an improvement, the top of the housing is provided with a transverse groove, the slider is located in the groove, and the housing is provided with a wire groove communicating with the groove. Thus, the groove guides the slider's movement, and the wire groove accommodates the wire.

[0028] Preferably, as an improvement, the cover plate and the housing are rotatably connected by a damped pivot. Using a damped pivot makes the cover plate more stable when flipping on the housing.

[0029] Preferably, as an improvement, the method for measuring the length of fishery organisms using this device includes the following steps:

[0030] S1. Each light sensor corresponds to a coordinate position. When fishery organisms block the light from the illumination lamp, the light sensors that are not illuminated transmit signals to the controller. The controller selects the light sensor with the smallest horizontal coordinate and the light sensor with the largest horizontal coordinate from these light sensors.

[0031] S2. Calculate the distance between the two optical sensors using the following formula: , where a and b are the horizontal and vertical coordinate values ​​of one of the optical sensors, c and d are the horizontal and vertical coordinate values ​​of the other optical sensor, and L is the total length of the fishery organism.

[0032] Preferably, as an improvement, it also includes S3, sliding the two sliders so that the two pointers point to the two ends of the section of the fishery organism to be measured. At this time, the meter detects the resistance or voltage, and the meter transmits the detection result to the controller. The controller calculates the horizontal distance N between the two pointers based on the detection result and multiplying it by a certain conversion factor φ (the factor φ is related to the material of the resistance bar).

[0033] S4. According to the formula , where M is the length of a portion of the fishery organism. Attached Figure Description

[0034] Figure 1 This is a perspective view of a portable fishery organism body size data measurement device, with both the cover and the folding plate in the open position.

[0035] Figure 2 This is a perspective view of a portable fishery organism body size data measurement device, mainly showing the camera and light tube below the folding plate.

[0036] Figure 3 for Figure 1 A magnified view of D.

[0037] Figure 4 for Figure 1 A magnified view of E in the middle.

[0038] Figure 5 This is a cross-sectional view of the storage body, mainly illustrating the storage platform and other structures inside the shell.

[0039] Figure 6 This is a cross-sectional view of the object holder, mainly illustrating the internal structure such as the slider and resistor strip.

[0040] Figure 7 Top view of the sensor mounting plate.

[0041] Figure 8 This is a schematic diagram of a fish placed at an angle on a platform.

[0042] Figure 9 This is a schematic diagram of the control system for this device. Detailed Implementation

[0043] The following detailed description illustrates the specific implementation method:

[0044] The reference numerals in the accompanying drawings include: cover plate 1, folding plate 2, housing 3, rotating shaft 4, plate groove 5, display screen 6, slider receiving groove 7, slide groove 8, slider 9, laser pointer 10, lock groove 11, lock block 12, toggle lever 13, strip hole 14, camera 15, illumination lamp 16, placement platform 17, sensor mounting plate 18, light sensor 19, weighing pan 20, resistance strip 21, wire 22, placement groove 23, wire groove 24.

[0045] Example 1

[0046] The basics are as follows: Figures 1-3 , Figure 5 and Figure 9 As shown: A portable fishery organism body size data measuring device includes a storage body, a cover plate 1 and a folding plate 2.

[0047] The storage unit includes a square housing 3 and a controller located inside the housing 3. The controller can be a microcontroller, such as a TMS370C256A or STM32F103 microcontroller. Combined with... Figure 5 As shown, the top of the housing 3 is provided with a placement groove 23, in which a placement platform 17 is placed. In this embodiment, the placement platform 17 is square. A weighing pan 20 is placed at the bottom of the placement groove 23. The placement platform 17 is placed on the weighing pan 20. A weight sensor for weighing the placement platform 17 is installed on the weighing pan 20. The weight sensor is connected to the controller via a signal transmission line.

[0048] Combination Figure 1 As shown, the end of the cover plate 1 is rotatably connected to the top end of the housing 3. The rotation between the cover plate 1 and the housing 3 is specifically achieved through a damping shaft 4. The damping shaft 4 can be selected from various types, such as a straight damping shaft, a wrap-around damping shaft, or a spring-loaded damping shaft. By setting the damping shaft, the rotation of the cover plate 1 on the housing 3 becomes more stable. In this embodiment, the cover plate 1 is flipped to close on the top of the housing 3 and to open from the top of the housing 3.

[0049] The inner side of the cover plate 1 (the side facing the main body after the cover plate 1 is closed) is provided with a groove 5 for accommodating the folding plate 2. A display screen 6 electrically connected to the controller is installed in the groove 5. In this embodiment, the display screen 6 is an LED display screen, which can be installed in the groove 5 by screws or snap-fit. The end of the folding plate 2 is rotatably connected to the end of the groove 5 away from the housing 3. By rotating the folding plate 2, the folding plate 2 can be closed in the groove 5 or opened from the groove 5. The specific rotation method of the end of the folding plate 2 and the groove 5 is as follows: the inner wall of the groove 5 is provided with a rotation hole (not shown in the figure), and a rotation shaft (not shown in the figure) is welded to the left and right ends of the folding plate 2. The rotation shaft is inserted into the rotation hole. In addition, the cover plate 1 is also provided with a torsion spring groove (not shown in the figure) that communicates with the rotating hole. The rotating shaft passes through the rotating hole and is inserted into the torsion spring groove. A torsion spring (not shown in the figure) is installed in the torsion spring groove. One end of the torsion spring is engaged or abutted against the inner wall of the torsion spring groove, and the other end of the torsion spring is engaged or abutted against the rotating shaft 4. In this way, when the folding plate 2 is opened and closed in the plate groove 5, the rotating shaft 4 rotates and the torsion spring stores force. When the folding plate 2 is opened again from the plate groove 5, the torsion spring causes the rotating shaft 4 to rotate in the opposite direction under the action of the elastic force, so that the folding plate 2 automatically folds upward and opens. After the folding plate 2 is opened, under the action of the elastic force of the torsion spring, the folding plate 2 will not close automatically, and the folding plate 2 can maintain a stable state of continuous opening.

[0050] Combination Figure 1 and Figure 3 As shown, to ensure the folding plate 2 remains stable within the cover plate groove 5 and does not open automatically, a locking unit is connected between the folding plate 2 and the cover plate 1. The locking unit includes a locking block 12 and a locking groove 11. The locking block 12 is located on one component of the folding plate 2 and the cover plate 1, and the locking groove 11 is located on the other component. In this embodiment, the locking block 12 is located on... Figure 1 On the right end of the folding plate 2, the locking groove 11 is located Figure 1 On the right inner wall of the middle plate groove 5, combined with Figure 3 As shown, the end of the folding plate 2 is provided with a locking block groove, and the locking block 12 is laterally slidably connected in the locking block groove. A compression spring is connected between the locking block groove and the locking block 12. A transverse strip hole 14 is provided on the outer side of the folding plate 2. A toggle rod 13 is threadedly connected to the locking block 12, and the toggle rod 13 is located in the strip hole 14. Figure 3The top surface of the locking block 12 is flat, the bottom surface is inclined, and the right end is pointed. Thus, during the process of placing the folding plate 2 onto the slot 5, the inclined surface of the locking block 12 abuts against the inner surface of the slot 5. The locking block 12 is pressed against the inner surface of the slot 5, and its inclined surface slides relative to the inside of the slot 5. The locking block 12 then pushes against the compression spring and retracts, without obstructing the folding plate 2 from being placed into the slot 5. Once the folding plate 2 is in the slot 5, the locking block 12 aligns with the locking groove 11. Under the elastic force of the compression spring, the locking block 12 pops out and locks into the locking groove 11, preventing the folding plate 2 from rotating out of the slot 5. When it is necessary to open the folding plate 2, [further details are needed]. Figure 3 As shown, the lever 13 is moved to the left, causing the locking block 12 to move to the left. The locking block 12 then presses against the spring, and is no longer stuck in the locking groove 11. At this point, the folding plate 2 can rotate out of the plate groove 5. In this embodiment, the folding plate 2 covers the plate groove 5, and there is a gap (1-5mm) between the inner side of the folding plate 2 and the display screen 6, so the folding plate 2 will not press against the display screen 6.

[0051] Combination Figure 2 As shown, the folding plate 2 has a mounting groove on its side facing the plate groove 5. A camera 15 is installed in the mounting groove, and the camera 15 and the controller are electrically connected by a line.

[0052] The specific implementation process is as follows: When the device is not in use, the folding plate 2 is flipped into the slot 5, covering the display screen 6 in the slot 5 and protecting it. At the same time, the cover plate 1 is placed on the housing 3 of the main body, thus reducing the device's bulky footprint and facilitating its carrying and transport. Because the cover plate 1 covers the main body, the display screen 6 is not exposed, thus protecting it and preventing damage from accidental collisions during transport.

[0053] When measuring the weight of aquatic organisms (e.g., fish), the cover plate 1 is flipped over, opening the cover plate 1 to... Figure 1 In the current state, the storage platform 17 is exposed, and then the folding panel 2 is opened, swinging upward and rotating to... Figure 1 In the current state, the folding plate 2 is opposite to the housing 3, and the display screen 6 in the plate groove 5 is exposed. Then, the fishery organism is placed on the placement platform 17 of the placement body. The fishery organism presses down on the placement platform 17, and the placement platform 17 presses down on the weighing pan 20. The weight sensor detects the weight of the fishery organism, and the detection result is transmitted to the data analysis module of the controller. The data analysis module of the controller processes the detection result, and then the output module of the controller transmits the signal to the display screen 6 for display.

[0054] Simultaneously, the camera 15 on the folding plate 2 takes pictures of the aquatic organisms on the container body. The picture results are transmitted to the data analysis module of the controller. The data analysis module performs image recognition processing (comparing the photographed image with images stored in the database to achieve image recognition; image recognition technology is currently quite mature), thereby identifying the species of aquatic organisms being weighed. Finally, the relevant signals are transmitted to the display screen 6 through the output module. The display screen 6 directly displays the species and weight information of the aquatic organisms. In this way, when a batch of aquatic organisms is weighed separately, the weight information of the aquatic organisms can be displayed on the display screen 6 according to different species. Of course, in other embodiments, after weighing a batch of aquatic organisms one by one, the controller counts and stores the different species of aquatic organisms, calculates the average weight of the different species of aquatic organisms through a simple averaging operation, and displays it on the display screen 6.

[0055] In this embodiment, since the measurement of fishery organism size data is usually carried out at the edge of a pond or on a boat, where outdoor light is relatively strong, the folding plate 2, located above the display screen 6, can provide some shade, preventing strong light from directly shining on the display screen 6 and causing glare. This solves the problem of the display screen 6 being difficult to see due to strong sunlight during outdoor measurements, making the display screen 6 clearer. Simultaneously, in this embodiment, the camera 15 is mounted on the folding plate 2. When the folding plate 2 is opened, the camera 15 faces the platform 17 directly, allowing for direct photographing of the fishery organisms. Compared to taking photos with the camera 15 directly on the side of the cover plate 1, the photos are more accurate and clearer.

[0056] Of course, the use of this device is not limited to fish, but can also be applied to other aquatic products (fishery organisms) such as shrimp and crab.

[0057] Example 2

[0058] This embodiment is a further improvement on embodiment 1, combining... Figure 2 , Figure 5 , Figures 7-9 As shown, the top of the storage platform 17 is transparent, allowing light to pass through. In this embodiment, the storage platform 17 has an internal chamber, inside which a sensor mounting plate 18 is installed. The sensor mounting plate 18 is snap-fitted, fixed with screws, or glued to the inner wall of the storage platform 17, and is arranged parallel to and opposite to the top of the storage platform 17. Combined with... Figure 7As shown, multiple light sensors 19 arranged in a matrix are mounted on the upper surface of the sensor mounting plate 18. Specifically, each light sensor 19 is a photoresistor, with a spacing of 0.5-1 cm between them. The light sensors 19 are electrically connected to the controller. Illumination lamps 16 are provided on the side of the folding plate 2 facing the slot 5. Multiple illumination lamps 16 are arranged in a matrix to increase the illumination area; other shapes, types, or arrangements of lamps are also possible. Each light sensor 19 corresponds to a specific position, and this position information is pre-set in the controller's system, for example, in the form of coordinates (x, y).

[0059] In practical use, aquatic organisms, such as fish, are placed horizontally on the platform 17, with the folding plate opposite the platform 17. Illumination lamp 16 emits light vertically onto the platform 17. Because the top of the platform 17 is transparent, light can pass through and reach the light sensor 19, which detects the light. Since the aquatic organism is placed on the platform 17, the fish's body blocks the light emitted by the illumination lamp 16. The area of ​​the platform 17 opposite the fish's body forms a shadow, and the light sensor 19 corresponding to this shadowed area is not illuminated. The light sensor 19 transmits a signal to the controller, which calculates the approximate total length of the fish based on the shape of the shadowed area. Finally, the display screen 6 displays the fish's total length information.

[0060] Specifically, the data measurement method (total fish length) is as follows:

[0061] S1. The light sensor 19 that is not illuminated transmits a signal to the controller. Since each light sensor 19 has a corresponding coordinate position, the data analysis module of the controller can select the light sensor 19 with the smallest horizontal coordinate (the light sensor 19 at the leftmost end that is not illuminated) and the light sensor 19 with the largest horizontal coordinate (the light sensor 19 at the rightmost end that is not illuminated) from these light sensors 19 that transmit signals.

[0062] S2, the controller's data analysis module calculates the distance between the two optical sensors 19 using the following formula: Where a and b are the horizontal and vertical coordinate values ​​of one of the optical sensors 19, c and d are the horizontal and vertical coordinate values ​​of the other optical sensor 19, and L is the total length of the fish. After measuring each batch of fish, the controller counts and stores the different types of fish separately. By performing a simple averaging operation, the controller calculates the average total length of the different types of fish and displays the average value and other information on the display screen 6 through the output module.

[0063] In summary, this solution uses the illumination lamp 16 to emit light, and the controller roughly calculates the total length of the aquatic organism based on the shape of the shadow cast by the organism, which is then displayed on the screen 6. This achieves automatic measurement of the total length of the aquatic organism without the need for manual measurement, making the operation simple and convenient. In this embodiment, one device simultaneously measures both the total length and weight, eliminating the need for two separate devices. This also eliminates the need to carry two separate devices to measure aquatic products, making the device more portable.

[0064] Example 3

[0065] In Example 2, although the shadow created by the fish's body blocking the light can be used to measure the fish's total length (e.g., Figure 8 The distance from A to C is used to measure the length of certain segments of the fish, but because these segments fall within the entire shaded area, they cannot be measured using the shadows they form. For example, the anal length (the length from the fish's anus to its mouth) cannot be measured using shadow occlusion (e.g., Figure 8 (The distance from A to B in the middle).

[0066] To solve this technical problem, this embodiment is a further improvement on embodiment 2, combining... Figure 1 , Figure 4 Figure 8 and Figure 9 As shown, two sliders 9 are horizontally slidably connected to the top of the housing 3. Specifically, the top of the housing 3 has a horizontal groove 8, and the sliders 9 are located within the groove 8. Both sliders 9 are located on the outer side of the storage platform 17 away from the cover plate 1, and each slider 9 has a pointer. In this embodiment, both sliders 9 are equipped with laser pointers 10, and the pointers are the light emitted by the laser pointers 10. Combined with... Figure 1 As shown, the side of the folding plate 2 away from the plate groove 5 is provided with a slider receiving groove 7. The slider receiving groove 7 is close to the top of the plate groove 5. In this way, the cover plate 1 covers the housing 3, and the top of the slider 9 is located in the slider receiving groove 7, thereby preventing the folding plate 2 from abutting against the slider 9.

[0067] In this embodiment, when measuring the length of a segment of a fish, such as the anal length, the two sliders 9 are slidable. The two sliders 9 move the pointers, causing them to point to the two endpoints of the area to be measured, which are the points where the laser pointer 10 points. Figure 8 The length of a segment of the fish is measured at points A and B by measuring the distance between two pointers or two sliders 9.

[0068] To achieve automatic measurement of the distance between the two sliders 9, eliminating the need for manual measurement with a ruler and improving measurement efficiency, combined with... Figure 6As shown, a transverse resistance strip 21 is fixed inside the housing 3 (e.g., by adhesive, screw, or snap-fit). Metal plates are fixed (by adhesive, screw, or snap-fit) on both sliders 9. The metal plates and the resistance strip 21 are slidably connected. A test meter, either a voltage meter or a resistance meter, is electrically connected between the two metal plates and the controller. A wire groove 24 communicating with the slide groove 8 is provided inside the housing 3. The test meter is connected to the controller via a wire 22, which is accommodated in the wire groove 24.

[0069] Therefore, when measuring the length of a segment of a fish, such as the anal length, slide the two sliders 9 until the two pointers point to... Figure 8 At points A and B, the detector measures the resistance or voltage. The detector transmits the results to the controller. The controller's data analysis module performs calculations based on the results, multiplying the results by a conversion factor φ to automatically calculate the fish's anal length. The output module then displays the relevant information on the display screen 6.

[0070] Example 4

[0071] When measuring the length of certain sections of the fish as described in Example 3, for example, when measuring the anal length, if the fish are placed at inconsistent angles, combined with... Figure 8 As shown, the lateral distance between points A and B is inconsistent. That is, the flatter the fish is placed, the greater the lateral distance between points A and B. The greater the vertical tilt of the fish, the smaller the lateral distance between points A and B. Thus, the length of the resistor strip 21 between the two sliders 9 is different, which makes the length of the anal length measurement also related to the tilt of the fish. Therefore, the anal length measured according to Example 3 still has a large error.

[0072] To address this technical problem, this embodiment discloses a method for measuring the length of a portion of a fish, relying on the device, comprising the following steps:

[0073] S1. The light sensor 19 that is not illuminated transmits a signal to the controller. Since each light sensor 19 has a coordinate position corresponding to it, the controller can select the light sensor 19 with the smallest horizontal coordinate (the leftmost light sensor 19 that is not illuminated) and the light sensor 19 with the largest horizontal coordinate (the rightmost light sensor 19 that is not illuminated) from these light sensors 19 that transmit signals.

[0074] S2. The distance between the two optical sensors 19 is calculated using the controller's data analysis module. The calculation formula is as follows: , where a and b are the horizontal and vertical coordinate values ​​of one of the optical sensors 19, c and d are the horizontal and vertical coordinate values ​​of the other optical sensor 19, and L is the total length of the fish;

[0075] S3. Slide the two sliders 9 so that the two pointers point to the two ends of the section to be measured. At this time, the meter detects the resistance or voltage and transmits the detection result to the controller. The controller's data analysis module calculates the horizontal distance N between the two pointers based on the detection result and multiplying it by a certain conversion factor φ (this calculation result is not directly used as the length of the fish section as in Example 3). Figure 8 The lateral distance between points A and B in the middle;

[0076] S4, The controller's data analysis module, according to the formula Where M is the length of a portion of the fish (e.g., anal length), Figure 8 (The length between A and B in the middle).

[0077] Using this method, the calculated length of certain sections of the fish will be more accurate, avoiding the problem of different measurement results caused by different degrees of tilt when the fish is placed.

[0078] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A portable fishery organism body size data measuring device and a method for measuring the length of fishery organisms, characterized in that: A portable fishery organism body size data measuring device includes a storage body, a cover plate, and a folding plate; The storage body includes a housing and a controller located inside the housing. The top of the housing is provided with a placement slot, in which a storage platform is placed. The housing is provided with a weight sensor for weighing the storage platform; the weight sensor is electrically connected to the controller. The end of the cover plate is rotatably connected to the housing, and the cover plate can be closed on the top of the housing and opened from the top of the housing by flipping the cover plate; the inner side of the cover plate is provided with a plate groove for accommodating the folding plate, and a display screen electrically connected to the controller is installed in the plate groove; the end of the folding plate is rotatably connected to the end of the plate groove away from the housing, and the folding plate can be closed on the plate groove and opened from the plate groove by flipping the folding plate. A camera is provided on the side of the folding plate facing the groove, and the camera and the controller are electrically connected. The top of the storage platform is transparent, and a sensor mounting plate is located below the storage platform inside the housing. Multiple light sensors are mounted in a matrix on the upper surface of the sensor mounting plate. The light sensors are electrically connected to the controller, and an illumination lamp is provided on the side of the folding plate facing the slot. Two sliders are slidably connected to the top of the housing. Both sliders are located on the outer side of the platform away from the cover plate, and both sliders are equipped with pointers. A resistance strip is fixedly installed inside the housing. Metal plates are fixedly installed on both sliders. The metal plates and the resistance strip are slidably connected. A test meter is electrically connected between the two metal plates and the controller. The method for measuring the length of fishery organisms includes the following steps: S1. Each light sensor corresponds to a coordinate position. When fishery organisms block the light from the illumination lamp, the light sensors that are not illuminated transmit signals to the controller. The controller selects the light sensor with the smallest horizontal coordinate and the light sensor with the largest horizontal coordinate from these light sensors. S2. Calculate the distance between the two optical sensors using the following formula: , where a and b are the x and y coordinates of one of the optical sensors, c and d are the x and y coordinates of the other optical sensor, and L is the total length of the fishery organism; S3. Slide the two sliders so that the two pointers point to the two ends of the section of the fishery organism to be measured. At this time, the meter detects the resistance or voltage. The meter transmits the detection result to the controller. The controller calculates the horizontal distance N between the two pointers by multiplying the detection result by a certain conversion factor φ. The conversion factor φ is related to the material of the resistance bar. S4. According to the formula The calculation is performed, where M is the length of a portion of the fishery organism.

2. The method for measuring the length of fishery organisms using a portable fishery organism body size data measuring device according to claim 1, characterized in that: Both sliders are equipped with laser pointers, and the pointers are the light emitted by the laser pointers.

3. The method for measuring the length of fishery organisms using a portable fishery organism body size data measuring device according to claim 1, characterized in that: The folding plate has a slider receiving groove on the side away from the plate groove, and the slider receiving groove is close to the top of the plate groove.

4. The method for measuring the length of fishery organisms using a portable fishery organism body size data measuring device according to claim 1, characterized in that: A locking unit is connected between the folding plate and the cover plate; the locking unit includes a locking block and a locking groove, the locking block is located on one of the components of the folding plate and the cover plate, and the locking groove is located on the other component.

5. The method for measuring the length of fishery organisms using a portable fishery organism body size data measuring device according to claim 1, characterized in that: The illumination lamps are multiple and arranged in a matrix.

6. The method for measuring the length of fishery organisms using a portable fishery organism body size data measuring device according to claim 1, characterized in that: The top of the housing is provided with a horizontal sliding groove, the slider is located in the sliding groove, and the housing is provided with a wire groove communicating with the sliding groove.

7. The method for measuring the length of fishery organisms using a portable fishery organism body size data measuring device according to claim 1, characterized in that: The cover plate and the housing are rotatably connected by a damping shaft.

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