Lotus root detection scouring and silting device and method

Abstract

A lotus root detection and scouring device and method, relate to underwater plant harvesting field. The lotus root detection and scouring device includes a hull, a detection mechanism and a scouring mechanism. The detection mechanism includes a lifting frame, a lifting device for driving the lifting frame to lift, a plurality of lifting detection rods connected to the lifting frame, and a circuit board arranged at the top of the lifting frame. The circuit board is provided with an inductive element corresponding to each detection rod. When the lifting frame is lowered, each detection rod is inserted into the silt in the water, and the lotus root in the silt pushes the top of the corresponding detection rod to press the corresponding inductive element to send a signal to locate the position and shape of the lotus root. The scouring mechanism includes a washing channel and a water pump arranged in each detection rod. The bottom of the washing channel is connected to the bottom of the corresponding detection rod, and the water pump selectively sends water to each washing channel through a water delivery mechanism. The lotus root detection and scouring device and method can quickly and efficiently locate the position of the lotus root and remove the silt around the lotus root, improving the efficiency of lotus root collection and reducing the work intensity.

Description

Technical Field

[0001] This application relates to the field of underwater plant harvesting, and more specifically, to a lotus root detection and siltation detection device and method. Background Technology

[0002] Lotus root is one of the largest aquatic vegetables in my country and also has certain medicinal value. It is widely cultivated in the Yangtze and Yellow River basins. Among the various stages of lotus root cultivation, sowing, fertilizing, and care are relatively easy, but harvesting lotus roots is extremely difficult.

[0003] There are two main methods for harvesting lotus roots: one is manual digging with a mud shovel. Before digging, the water in the lotus pond needs to be drained, and the surface mud is dug up with a mud shovel to remove the lotus roots. This method not only results in inconsistent quality of harvested lotus roots, but also easily breaks them, affecting quality. Furthermore, it is inefficient, labor-intensive, and causes significant damage to the soil during the digging process, leading to nutrient loss and affecting the quality of lotus roots the following year. The second method is manual harvesting using a spray gun. A high-pressure water gun is used to flush away the mud around the lotus roots, causing them to float on the water surface. Then, they are collected manually. This method improves the efficiency of lotus root harvesting to some extent, but it requires a high level of experience and skill from the diggers, and the labor intensity remains high. In addition, the high-pressure water gun washing process can easily damage the lotus roots, affecting the quality of the harvested lotus roots.

[0004] Therefore, there is a need for a lotus root detection and siltation device and method to locate the lotus root in the silt and remove the silt around the lotus root. Summary of the Invention

[0005] The purpose of this application is to provide a lotus root detection and silt removal device and method, which can quickly and efficiently locate the lotus root and remove the silt around the lotus root, improve the lotus root harvesting efficiency and reduce the damage rate and workload.

[0006] This application is implemented as follows:

[0007] This application provides a lotus root silt detection device, which includes:

[0008] The hull, to which a drive mechanism is attached for propelling it to move in the water;

[0009] The detection mechanism, connected to the hull, includes a lifting frame, a lifting device for driving the lifting frame to rise and fall, multiple liftable detection rods connected to the lifting frame, and a circuit board connected to the top of the lifting frame. The circuit board is equipped with sensing elements that correspond one-to-one with the detection rods. When the lifting frame descends, it drives each detection rod to descend and insert into the silt in the water, causing the lotus root in the silt to push the top of the corresponding detection rod against the corresponding sensing element to send a signal to locate the position of the lotus root.

[0010] The flushing mechanism includes flushing channels and water pumps respectively installed in each detection rod. The bottom of the flushing channel is connected to the bottom of the corresponding detection rod, and the water pump selectively delivers water to each flushing channel through a water delivery mechanism.

[0011] In some alternative implementations, the lifting frame includes multiple light rods and at least two detection fixing plates arranged at intervals along the height direction, the detection fixing plates being fixedly sleeved on each light rod, and each detection rod sliding through each detection fixing plate.

[0012] In some alternative implementations, the probe rods are arranged along a matrix and pass through the respective probe mounting plates.

[0013] In some alternative implementations, the water delivery mechanism includes a water delivery pipe connected to a water pump, a water distributor connected to the water delivery pipe, and multiple water outlet pipes connected to the water distributor. Each water outlet pipe is equipped with a solenoid valve, and each water outlet pipe is connected to a corresponding flushing channel in a row of probe rods.

[0014] In some alternative implementations, the sensing element includes an LED light switch located at the bottom of the circuit board corresponding to the probe rod, and an LED light connected to the LED light switch at the top of the circuit board. When the top of the probe rod presses against or disengages from the corresponding LED light switch, the corresponding LED light is turned on or off.

[0015] In some alternative implementations, a camera located on top of the circuit board is also included, which is used to capture images of the opening and closing of each LED light.

[0016] In some alternative implementations, the sensing element includes a pressure sensor located at the bottom of the circuit board, corresponding one-to-one with the probe.

[0017] In some alternative implementations, the hull is connected to a fixed frame, and each side of the fixed frame is provided with at least one slide rail extending in the height direction, and the lifting frame or circuit board is connected to a slider that is slidably disposed on each slide rail.

[0018] In some alternative implementations, the bottom of the probe is connected to a nozzle that communicates with the flushing channel.

[0019] This application also provides a method for detecting siltation and erosion in lotus roots, including the following steps:

[0020] The hull is moved to a preset position. The hull is equipped with a lifting frame, a lifting device for driving the lifting frame to rise and fall, multiple liftable probe rods connected to the lifting frame, and a circuit board connected to the top of the lifting frame. The circuit board is equipped with sensing elements that correspond one-to-one with the probe rods. Each probe rod is equipped with a flushing channel, and the bottom of the flushing channel is connected to the bottom of the corresponding probe rod.

[0021] The lifting device drives the lifting frame to descend, causing each probe rod to descend and insert into the silt in the water until the lotus root blocks the corresponding probe rod. The top of the probe rod blocked by the lotus root presses against the corresponding sensing element on the circuit board, causing the sensing element to send a positioning signal.

[0022] A water pump is used to selectively deliver water through a water conveyance mechanism to the flushing channel inside the probe that has not emitted a positioning signal, flushing the silt around the lotus root and causing the lotus root to float to the surface.

[0023] The beneficial effects of this application are as follows: The lotus root detection and silt removal device provided by this application includes a hull, a detection mechanism connected to the hull, and a silt removal mechanism. The hull is connected to a drive device for moving it in the water. The detection mechanism includes a lifting frame, a lifting device for driving the lifting frame to rise and fall, multiple liftable detection rods connected to the lifting frame, and a circuit board connected to the top of the lifting frame. The circuit board is equipped with sensing elements corresponding to each detection rod. When the lifting frame descends, it drives each detection rod to descend and insert into the silt in the water, causing the lotus root in the silt to push the top of the corresponding detection rod against the corresponding sensing element to send a signal to locate the lotus root position. The silt removal mechanism includes a flushing channel and a water pump respectively located in each detection rod. The bottom of the flushing channel is connected to the bottom of the corresponding detection rod, and the water pump selectively delivers water to each flushing channel through a water delivery mechanism. The lotus root detection and silt removal device and method provided by this application can quickly and efficiently locate the lotus root position and remove the silt around the lotus root, thereby facilitating lotus root harvesting, greatly improving lotus root harvesting efficiency, and reducing the workload of operators. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A first-view structural schematic diagram of the lotus root detection and siltation device provided in an embodiment of this application;

[0026] Figure 2 A second-view structural schematic diagram of the lotus root detection and siltation device provided in an embodiment of this application;

[0027] Figure 3 This is a third-view structural schematic diagram of the lotus root detection and siltation device provided in the embodiments of this application;

[0028] Figure 4 This is a partial structural diagram of the connection between the bottom of the detection rod and the nozzle in the lotus root detection and silt removal device provided in this embodiment of the application.

[0029] Figure 5 This is a schematic diagram of the nozzle structure in the lotus root detection and silt flushing device provided in the embodiments of this application;

[0030] Figure 6 A schematic diagram of the structure in which the water pump in the lotus root detection and silt flushing device provided in this application is connected to the water inlet interface corresponding to each flushing channel through the water conveying mechanism;

[0031] Figure 7 This is a schematic diagram of the structure of a lotus root detection and siltation device provided in another embodiment of this application.

[0032] In the diagram: 100, hull; 110, mounting frame; 111, side plate; 112, top plate; 120, slide rail; 130, slider; 140, electric actuator; 150, protective net; 160, solar panel; 200, detection mechanism; 210, lifting frame; 211, light rod; 212, detection mounting plate; 220, detection rod; 230, circuit board; 240, sensing element; 250, LED light switch; 260, LED light; 270, camera; 280, pressure sensor; 290, lifting device; 300, sludge flushing mechanism; 310, flushing channel; 320, water pump; 330, nozzle; 331, nozzle body; 332, first nozzle; 333, second nozzle; 340, water supply pipe; 350, water distributor; 360, water outlet pipe; 370, solenoid valve; 380, water inlet. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] The features and performance of the lotus root detection and siltation device and method of this application will be further described in detail below with reference to the embodiments.

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, this application embodiment provides a lotus root detection and silt flushing device, which includes a hull 100, a detection mechanism 200 and a silt flushing mechanism 300; wherein, the stern of the hull 100 is connected to a drive device for driving it to move in the water, the drive device is an electric thruster 140, the bottom of the hull 100 is also connected to a protective net 150 covering the outside of the propeller of the electric thruster 140, the top of the hull 100 is connected to a fixed frame 110, the fixed frame 110 is composed of two side plates 111 whose bottoms are connected to the hull 100 and a top plate 112 whose ends are respectively connected to the top of the two side plates 111, and a slide rail 120 extending along the height direction is provided on the adjacent side of the two side plates 111, and a solar panel 160 is laid on the top of the top plate 112;

[0042] The detection mechanism 200 includes a liftable frame 210 located inside the fixed frame 110, a lifting device 290 for driving the lift frame 210 to rise and fall, 100 vertically arranged detection rods 220, and a circuit board 230 connected to the top of the lift frame 210. The lift frame 210 includes four light rods 211 and two detection fixing plates 212 arranged at intervals along the height direction. The detection fixing plates 212 are fixedly sleeved on each light rod 211. The 100 detection rods 220 are arranged in a matrix and slide through the two detection fixing plates 212. The circuit board 230 is connected to the top of the four light rods 211. The two ends of the circuit board 230 are respectively connected to sliders 130 that slide on two slide rails 120. The circuit board 230 is provided with sensors corresponding to the detection rods 220 one by one. The sensing element 240 includes an LED light switch 250 located at the bottom of the circuit board 230, corresponding to the probe rod 220. The top of the circuit board 230 is provided with LED lights 260 connected to the LED light switches 250. When the top of the probe rod 220 presses against or disengages from the corresponding LED light switch 250, the corresponding LED light 260 is turned on or off. When the lifting frame 210 descends, it drives each probe rod 220 to descend and insert into the silt in the water. The lotus root in the silt pushes the top of the corresponding probe rod 220 to press against the corresponding LED light switch 250, turning on the corresponding LED light 260 and sending a signal to locate the lotus root. A camera 270 is connected to the bottom of the top plate 112. The camera 270 is used to capture the opening and closing images of each LED light 260. In this embodiment, the lifting device 290 is driven by a motor to wind or unwind the wire rope to lift the lifting frame 210; the hull 100 is provided with through holes for each probe rod 220 to pass through, and the solar panel 160 is connected to the battery and each LED light 260 respectively through the controller.

[0043] The flushing mechanism 300 includes flushing channels 310 respectively located in each detection rod 220 and a water pump 320 fixed to the hull 100. The bottom of the flushing channel 310 is connected to the bottom of the corresponding detection rod 220. The top and bottom of each detection rod 220 are respectively connected to a water inlet 380 and a nozzle 330 connected to the flushing channel 310. The water pump 320 is connected to each flushing channel 310 through a water supply mechanism. The water supply mechanism includes a water supply pipe 340 connected to the water pump 320, a water distributor 350 connected to the water supply pipe 340, and 10 water outlet pipes 360 connected to the water distributor 350. The water outlet pipes 360 are equipped with solenoid valves 370. Each water outlet pipe 360 ​​is connected to the water inlet 380 corresponding to a row of detection rods 220 through an adapter and a hose. The nozzle 330 includes a nozzle body 331 that can be fitted onto the bottom of the probe rod 220. The nozzle body 331 has a first nozzle 332 at its bottom and a second nozzle 333 spaced around its circumference.

[0044] This application embodiment also provides a lotus root detection and siltation method using the above-mentioned lotus root detection and siltation device, including the following steps:

[0045] Based on the lotus root planting and growth, control the electric thruster 140 to drive the hull 100 to move along the preset trajectory on the water surface to the preset position.

[0046] The lifting device drives the lifting frame 210 to descend, and at the same time the lifting frame 210 descends, it drives each detection rod 220 to descend synchronously and insert into the silt in the water until the lotus root in the silt blocks the corresponding detection rod 220. The top of the detection rod 220 blocked by the lotus root presses against the corresponding LED light switch 250 at the bottom of the circuit board 230, so that the LED light switch 250 connected to the corresponding LED light 260 turns on and emits a positioning signal. The camera 270 located at the bottom of the top plate 112 collects the images of the opening and closing status of each LED light 260, so as to obtain the shape of the lotus root by analyzing and identifying the outline and shape of the turned-on LED light 260.

[0047] Since the lotus root is long and narrow, when it extends along the side length of the matrix-arranged detection rods 220 and is directly below them, there is no need to adjust the position of the hull 100. In this case, the lotus root blocks one or more rows of the matrix-arranged detection rods 220 and turns on one or more rows of LED lights 260 on the top of the circuit board 230. When the lotus root is arranged at an angle to the side length of the detection rods 220 or when it is located at the edge of the matrix-arranged detection rods 220, a lifting device is needed to drive the lifting frame 210 to rise and raise each detection rod 220. Then, the electric thruster 140 is controlled to move the hull 100 on the water surface to adjust its position. After that, the lifting device is used again to drive the lifting frame 210 to descend and lower each detection rod 220, so that the lotus root extends along the side length of the matrix-arranged detection rods 220 and is directly below them.

[0048] Water pump 320 selectively delivers water through a water delivery mechanism to the flushing channel 310 inside the detection rod 220 corresponding to the row of unopened LED lights 260, flushing the silt around the lotus root and causing it to float. Specifically, after the water pump 320 is turned on, the solenoid valve 370 on the water outlet pipe 360 ​​of the detection rod 220 corresponding to the row of unopened LED lights 260 is opened, allowing the water pump 320 to deliver water through the water delivery pipe 340, water distributor 350, corresponding water outlet pipe 360, and hose into the flushing channel 310 inside the corresponding row of detection rods 220. The water in the flushing channel 310 is sprayed out through the nozzle 330 at the bottom of the detection rod 220 corresponding to the row of unopened LED lights 260, so that the water is sprayed out from the first nozzle 332 at the bottom of the nozzle body 331 and the second nozzle 333 spaced apart around the perimeter, flushing the silt around the lotus root. After the silt around the lotus root is removed, it floats up due to buoyancy for easy collection.

[0049] The lotus root detection and silt-removing device and method provided in this application embodiment uses a hull 100 to support a detection mechanism 200 and a silt-removing mechanism 300, which move to a preset position on the water surface. Then, the detection mechanism 200 drives multiple vertically arranged detection rods 220 to descend and insert into the silt in the water to detect the location of the lotus root. The lotus root obstructs the movement of some detection rods 220, causing the tops of the obstructed rods 220 to press against the corresponding sensing elements 240 on the circuit board 230. This causes the sensing elements 240 to emit positioning signals to locate the lotus root. Subsequently, a water pump delivers water to the flushing channel 310 within the unobstructed detection rods 220, which is then sprayed out through nozzles 330 to flush away the silt around the lotus root, making the buoyancy of the lotus root greater than its weight, facilitating its collection. The lotus root detection and silt-removing device and method provided in this application embodiment can quickly and efficiently locate the lotus root and remove the surrounding silt, thus facilitating lotus root collection, greatly improving collection efficiency, and reducing the workload of workers.

[0050] The bottom of the hull 100 is also connected to a protective net 150 covering the outside of the propeller of the electric thruster 140, which can protect the propeller from aquatic plants entanglement and affecting the operation; each of the two side plates 111 has a slide rail 120 extending along the height direction on one side; the two ends of the circuit board 230 are respectively connected to sliders 130 that slide on the two slide rails 120, which can drive the sliders 130 to move along the slide rails 120 when the fixed frame 110 is raised and lowered, thereby ensuring that the fixed frame 110 can stably drive the detection rod 220 to raise and lower to detect the position of the lotus root; the solar panel 160 supplies power to each LED light 260, which can ensure the energy supply of the LED lights 260.

[0051] In other alternative embodiments, the number of probe rods 220 can be adjusted according to the actual situation, and can be less than 100 or more.

[0052] In other alternative embodiments, such as Figure 7 As shown, the sensing element 240 may also include a pressure sensor 280, which is disposed at the bottom of the circuit board 230 in a one-to-one correspondence with the detection rod 220. When the lifting device drives the lifting frame 210 to descend, and the lifting frame 210 descends at the same time, it drives each detection rod 220 to descend synchronously and insert into the silt in the water. The lotus root in the silt blocks the corresponding detection rod 220, so that the top of the detection rod 220 blocked by the lotus root presses against the corresponding pressure sensor 280 at the bottom of the circuit board 230. The pressure sensor 280 sends a signal, thereby determining that it is blocked by the lotus root through the pressure signal detected by the pressure sensor 280.

[0053] In other alternative embodiments, the sensing element 240 may also include a proximity switch, an infrared sensor, a laser sensor, or other sensors that are disposed at the bottom of the circuit board 230 corresponding to the probe 220 and capable of detecting that the probe 220 is obstructed and moves.

[0054] In other alternative embodiments, the lifting device 290 may also be a linear motion mechanism such as an electric push rod, a linear guide rail, or a motor screw device that can drive the fixed frame 110 to rise and fall.

[0055] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A lotus root silt detection device, characterized in that, It includes: The hull is connected to a drive mechanism for moving it in the water. The detection mechanism, connected to the hull, includes a lifting frame, a lifting device for driving the lifting frame to rise and fall, multiple liftable detection rods connected to the lifting frame, and a circuit board connected to the top of the lifting frame. The circuit board has sensing elements corresponding to each detection rod. The lifting frame includes multiple optical rods and at least two detection fixing plates spaced apart along the height direction. The detection fixing plates are fixedly sleeved on each optical rod, and each detection rod slides through each detection fixing plate in a matrix arrangement. When the lifting frame descends, it drives each detection rod to descend and insert into the silt in the water, causing lotus roots in the silt to push the top of the corresponding detection rod against the corresponding sensing element, emitting a signal to locate the position of the lotus root. The flushing mechanism includes flushing channels and water pumps respectively disposed in each of the detection rods. The bottom of the flushing channel is connected to the bottom of the corresponding detection rod. The water pump selectively delivers water to the detection rods that have not issued a positioning signal through a water delivery mechanism. The bottom of the detection rod is connected to a nozzle that communicates with the flushing channel. The water delivery mechanism includes a water delivery pipe connected to the water pump, a water distributor connected to the water delivery pipe, and multiple water outlet pipes connected to the water distributor. The water outlet pipes are equipped with solenoid valves. Each water outlet pipe is connected to a corresponding flushing channel in a row of the detection rods. The nozzle includes a nozzle body that can be sleeved on the bottom of the detection rod. The bottom of the nozzle body has a first nozzle opening, and the nozzle body has second nozzles spaced apart circumferentially.

2. The lotus root detection and siltation device according to claim 1, characterized in that, The sensing element includes LED light switches located at the bottom of the circuit board, corresponding to the probe rods. The top of the circuit board is provided with LED lights connected to the LED light switches in a corresponding manner. When the top of the probe rod presses against or detaches from the corresponding LED light switch, the corresponding LED light is turned on or off.

3. The lotus root detection and siltation device according to claim 2, characterized in that, It also includes a camera located on top of the circuit board, which is used to capture images of each of the LED lights being turned on and off.

4. The lotus root detection and siltation device according to claim 1, characterized in that, The sensing element includes pressure sensors located at the bottom of the circuit board, corresponding one-to-one with the probe rod.

5. The lotus root detection and siltation device according to claim 1, characterized in that, The hull is connected to a fixed frame, and at least one slide rail extending along the height direction is provided on each side of the fixed frame. The lifting frame or the circuit board is connected to a slider that is slidably disposed on each of the slide rails.

6. A method for detecting siltation in lotus roots, characterized in that, The lotus root detection and siltation device according to claim 1 is used to achieve this, including the following steps: The hull is moved to a preset position. The hull is equipped with a lifting frame, a lifting device for driving the lifting frame to rise and fall, multiple liftable probe rods connected to the lifting frame, and a circuit board connected to the top of the lifting frame. The circuit board is equipped with sensing elements that correspond one-to-one with the probe rods. Each probe rod is equipped with a flushing channel, and the bottom of the flushing channel is connected to the bottom of the corresponding probe rod. The lifting device is used to drive the lifting frame to descend, so that each of the probe rods descends and inserts into the silt in the water until the lotus root in the silt blocks the corresponding probe rod. The top of the probe rod blocked by the lotus root presses against the corresponding sensing element on the circuit board, causing the sensing element to emit a positioning signal. A water pump is used to selectively deliver water through a water conveyance mechanism to the flushing channel inside the probe that has not emitted a positioning signal, flushing the silt around the lotus root and causing the lotus root to float.

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