CN113194271B - Drifting fish egg monitoring equipment and cascade reservoir scheduling method for improving hatchability - Google Patents
Drifting fish egg monitoring equipment and cascade reservoir scheduling method for improving hatchability Download PDFInfo
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- H04N5/30—Transforming light or analogous information into electric information
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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Abstract
The invention provides drifting fish egg monitoring equipment and a cascade reservoir dispatching method for improving hatchability, wherein the cascading reservoir dispatching method comprises a bottom plate for supporting and mounting the whole device, a double-layer shell is fixed at the top of the bottom plate, and flow rate monitoring devices for monitoring flow rate are mounted at two ends of the bottom plate; a main infrared photographic device and a standby infrared photographic device are arranged on the bottom layer of the double-layer shell, and a glass cover cleaning device for cleaning the main infrared photographic device and the standby infrared photographic device is hung in the middle of the bottom layer of the double-layer shell; a flow speed data storage device and an infrared photography data storage device are arranged on the upper layer of the double-layer shell, a top shackle is arranged at the top of the double-layer shell, and side shackles which are symmetrically arranged are arranged on the side wall of the double-layer shell; and a drainage device is arranged in the bottom plate. The method solves the problem of poor bottom sinking development and even death of the drifting roe in the technical background, and improves the hatchability of the drifting roe at the downstream of the cascade reservoir.
Description
Technical Field
The invention relates to the field of fine regulation and control of a cascade reservoir, in particular to drifting roe monitoring equipment and a cascade reservoir scheduling method for improving hatchability.
Background
The optimal scheduling of the cascade reservoir group is a typical nonlinear, multidimensional and strong constraint engineering problem, is an important measure for improving the energy structure of China, and is a popular subject for the research in the field of hydropower scheduling of China. With the development of large-scale hydroelectric resources in recent decades, the operation of the cascade reservoir has a certain influence on the spawning and breeding of downstream fishes, and the requirement of relieving the spawning and breeding of the downstream fishes in the reservoir by adjusting the operation rules of the reservoir is the current research enthusiasm. However, most of the current ecological scheduling research aiming at downstream fishes only focuses on stimulating the fishes to lay eggs, and the drifting process of the floating eggs laid by the fishes is less concerned.
However, most of the domestic related patents on roes are focused on the fishing and hatching of roes, and for example, hujiaxiang and the like aim at the hatching problem of floating roes, a drifting roe hatching method and a hatching device are invented (application publication number: CN 111670844A); the invention provides a hatching device of a viscidity and sinkage fish egg and a using method thereof (application publication number: CN111513004A) aiming at the hatching problem of the viscidity and sinkage fish egg; the invention relates to a floating roe collecting device based on the floating roe collection problem of Ouyangli sword and the like (application publication number: CN 111742893A); based on the characteristics of fish egg hatching, von icy ice and the like, a fish egg hatching and collecting method and device are invented (application publication number: CN 111248122A). Therefore, for the monitoring equipment of floating roes in actual rivers and the corresponding regulation and control method, the existing patents are few, and in order to actually improve the hatchability of roes of fishes laying floating roes, an actual reliable floating roe monitoring equipment and a step reservoir scheduling method for improving the hatchability are needed.
At present, fertilized eggs of fishes laying floating eggs develop in a drifting manner along with water, so that the risk of oxygen deficiency and death caused by sinking of the eggs into the water bottom can be reduced, and the fishes are effectively prevented from being predated by enemies; on the other hand, the method is also beneficial to species diffusion, improves the opportunity of obtaining food for individuals and provides wider space for population survival and development. For fishes laying floating eggs, the eggs absorb water and swell after being laid, the specific gravity is slightly larger than that of water, for example, four big Chinese carps, the relative specific gravity is 1.0014-1.0031 after the eggs are laid and absorb water and swell, the eggs gradually sink to the bottom of a river bed in a still water environment, the eggs are easy to develop badly and even die, and the eggs can float downstream under certain hydrodynamic force conditions and develop into fishes.
Disclosure of Invention
The invention aims to provide drifting fish egg monitoring equipment and a cascade reservoir dispatching method for improving the hatchability, so as to solve the problem that fish eggs are poor in bottom-sinking development and even die in the technical background and improve the hatchability of drifting fish eggs at the downstream of a cascade reservoir.
In order to achieve the technical features, the invention is realized as follows: a drifting fish egg monitoring device comprises a bottom plate for supporting and mounting the whole device, wherein a double-layer shell is fixed at the top of the bottom plate, and flow rate monitoring devices for monitoring flow rate are mounted at two ends of the bottom plate; the bottom layer of the double-layer shell is provided with a main infrared photographic device and a standby infrared photographic device, and the middle part of the bottom layer of the double-layer shell is provided with a glass cover cleaning device for cleaning the main infrared photographic device and the standby infrared photographic device in a hanging manner; a flow speed data storage device and an infrared photography data storage device are arranged on the upper layer of the double-layer shell, a top shackle is arranged at the top of the double-layer shell, and side shackles which are symmetrically arranged are arranged on the side wall of the double-layer shell; and a drainage device is arranged in the bottom plate.
The bottom plate is provided with a side plate, and the bottom plate and the side plate are both made of low-density plastic plates, so that buoyancy is provided for the whole monitoring device, and the whole monitoring device can float on the water surface;
the flow speed data storage and the infrared photography data storage transmit data of a single monitoring device to a signal base station on the shore, and the data are collected and transmitted to the dispatching center by the signal base station.
The flow velocity monitoring device comprises a front-end flow velocity measuring instrument and a rear-end flow velocity measuring instrument, the front-end flow velocity measuring instrument is fixed at the bottom end of a front-end fixing base through a straight rod, and the front-end fixing base is fixed at the front end of the bottom plate; the rear end flow velocity measuring instrument is fixed at the bottom end of a rear end fixing base through a first straight rod, and the rear end fixing base is fixed at the rear end of the bottom plate; the front-end flow velocity measuring instrument and the rear-end flow velocity measuring instrument are respectively connected with a data transmission line; the data transmission line is connected to a flow rate data storage.
The main infrared photographic device comprises a main infrared lamp and a main infrared miniature camera which are arranged in the transparent colorless glass cover;
the standby infrared photographic device comprises a standby infrared lamp and a standby infrared miniature camera which are arranged in the transparent colorless glass cover;
the transparent colorless glass covers of the main infrared photographic device and the standby infrared photographic device are respectively arranged at two ends of a rotating shaft through a second straight rod, and the rotating shaft is perpendicular to the second straight rod and is rotatably arranged at the bottom layer of the double-layer shell.
The main infrared photographic device is over against the lower part of the whole monitoring device to monitor the condition of floating fish eggs and small fish fries in rivers, and when the glass cover of the main infrared photographic device is contaminated to weaken the image pickup effect, the rotating shaft can rotate clockwise to rotate the standby infrared photographic device to be over against the lower part.
The glass cover cleaning device comprises a third straight rod arranged at the center of the bottom layer of the double-layer shell, a rotor is arranged at the bottom end of the third straight rod, a cleaning cover body is arranged at the bottom end of the rotor, the cleaning cover body is matched with the outer wall of the transparent colorless glass cover, and a soft plush brush is arranged on the inner side wall of the cleaning cover body.
The side edge of the bottom opening of the double-layer shell is provided with a pressure sensor, a soft plastic sheet is clamped on the pressure sensor, the output end of the pressure sensor is connected to a buffer through a spring signal sensing line, and the buffer drives a rotor through the spring signal sensing line to drive a cleaning device to clean the glass cover;
when the main infrared photographic device jacks up and bends the soft plastic sheet, the pressure sensor transmits a signal to the buffer through the spring signal sensing line, the buffer buffers the signal for a set delay time, and then the main infrared photographic device turns upwards to drive the rotor to drive the cleaning device to clean the transparent colorless glass cover.
The top shackle is connected with a cable for fixing the position of the monitoring device through a signal lock catch, and the cable is connected with a fixed cable and fixes the position of single monitoring equipment; the side shackle is connected with the fixed pile through a recovery rope;
when the monitoring equipment has problems and needs to be recovered, the signal lock catch controls the hook ring connected with the cable to be loosened, then the whole device flows downwards along with the water flow, the monitoring device floats to the shore under the traction of the recovery cable, the light foam bag arranged on the side plate prevents the whole device from being scratched with the river bank to cause the damage of the side plate in the recovery process, and a worker can recover the device through the recovery cable;
the water discharging device comprises a micro water pump fixed on the top of the bottom plate, the micro water pump is connected with a water pipe, and the other end of the water pipe is fixed outside the device through a metal retaining ring.
A use method of drifting fish egg monitoring equipment comprises the following steps:
step 1: the whole monitoring device floats on the water surface through a bottom plate, the position of the whole monitoring device is fixed through a fixing rope, and meanwhile, a shoreside fixing pile and a recovery rope are fixed;
step 2: after all the monitoring devices are fixed, starting a front-end flow rate measuring instrument and a main infrared miniature camera in the device, and starting to monitor the flow rate condition of the cross section of the river, the number of floating eggs and the number of hatched young fishes;
step 3: the flow rate data monitored by the single monitoring device are respectively stored in a flow rate data storage and an infrared photography data storage;
step 4: data monitored by each monitoring device is transmitted to a signal base station on the shore through wireless signals, and then is transmitted to a dispatching center by the signal base station in a unified mode.
A cascade reservoir dispatching method for improving the incubation rate of floating fish eggs comprises the steps of analyzing fish species which produce floating eggs at the downstream of a reservoir, and analyzing the spawning propagation period of the fish species; constructing a two-dimensional hydrodynamic model and a physical habitat model, and calculating the region of the downstream spawning field of the floating oviparous fishes in the reservoir under the condition of different discharge rates; aiming at the species of downstream fishes producing drifting eggs, the minimum flow velocity of the fishes eggs which can drift in the water flow is obtained; the monitoring equipment is arranged in spawning areas of fishes producing drifting eggs and different distances of downstream of the fishes, so that the hatching condition of the eggs is monitored, the flow rate of the downstream egg floating area is fed back to a dispatching center, a reservoir dispatching scheme is corrected, the requirement of hatching the eggs can be met by the flow rate in the downstream drifting area of a spawning ground, the probability of bottom-sinking death in the egg floating process is reduced, and the hatching rate of the eggs is improved.
The invention has the following beneficial effects:
1. the hatchability of the downstream drifting egg fishes in the cascade reservoir can be effectively improved by the monitoring equipment and the matched technology.
2. Through foretell glass cover belt cleaning device can be used for carrying out effectual washing to photographic arrangement's surface, and then guarantee subsequent photographic effect.
3. The switching between the main device and the standby device is controlled through the rotating shaft.
4. According to the scheduling method, the scheduling center adjusts the current scheduling scheme according to the data of the monitored section, analyzes the number of the floatability roes of the section and the current flow rate of the section after receiving the monitored data of the corresponding section, optimizes the current scheduling scheme according to the analysis result, ensures the minimum flow rate of the floatability roes, and can effectively improve the overall hatchability of the floatability roes at the downstream of the cascade reservoir.
Drawings
The invention is further illustrated by the following figures and examples.
Fig. 1 is an overall view of the monitoring device of the present invention.
Fig. 2 is a top view of the monitoring device of the present invention.
Fig. 3 is a top view of an infrared camera of the monitoring device of the present invention.
Fig. 4 is a side view of an infrared camera of the monitoring device of the present invention.
Fig. 5 is a schematic view of the connection of the fixing rope device and the recovering rope device of the present invention with a single monitoring apparatus.
FIG. 6 is a flow chart of a cascade reservoir scheduling method for increasing the hatchability of floating fish eggs.
In the figure: 1 bottom plate, 2 double-layer shells, 3 spring signal sensing lines, 4 buffers, 5 flow rate data storages, 6 rotors, 7 third straight rods, 8 top shackles, 9 infrared photography data storages, 10 standby micro infrared cameras, 11 side shackles, 12 standby infrared lamps, 13 transparent colorless glass covers, 14 soft plush brushes, 15 cleaning covers, 16 pressure sensors, 17 soft plastic sheets, 18 front end fixed bases, 19 first straight rods, 20 front end flow rate measuring instruments, 21 rotating shafts, 22 second straight rods, 23 micro water pumps, 24 water pipes, 25 data transmission lines, 26 metal buckles, 27 main infrared lamps, 28 main infrared micro cameras, 29 light foam bags, 30 fixed ropes, 31 mooring ropes, 32 signal buckles, 33 recovery ropes, 34 fixed piles, 36 rear end fixed bases and 37 rear end flow rate measuring instruments.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-6, a drifting fish egg monitoring device comprises a bottom plate 1 for supporting and mounting the whole device, wherein a double-layer shell 2 is fixed on the top of the bottom plate 1, and two ends of the bottom plate 1 are provided with flow rate monitoring devices for monitoring flow rate; a main infrared photographic device and a standby infrared photographic device are arranged on the bottom layer of the double-layer shell 2, and a glass cover cleaning device for cleaning the main infrared photographic device and the standby infrared photographic device is hung in the middle of the bottom layer of the double-layer shell 2; a flow speed data storage 5 and an infrared photography data storage 9 are arranged on the upper layer of the double-layer shell 2, a top shackle 8 is arranged on the top of the double-layer shell 2, and side shackles 11 which are symmetrically arranged are arranged on the side wall of the double-layer shell 2; a drainage device is arranged in the bottom plate 1. The hatchability of the downstream drifting egg fishes in the cascade reservoir can be effectively improved by the monitoring equipment and the matched technology.
Furthermore, a side plate is arranged on the bottom plate 1, and the bottom plate 1 and the side plate are both made of low-density plastic plates, so that buoyancy is provided for the whole monitoring device, and the whole monitoring device can float on the water surface; the flow speed data storage 5 and the infrared photography data storage 9 transmit data of a single monitoring device to a signal base station on the shore, and the data are collected and transmitted to a dispatching center by the signal base station. In this embodiment, the density of the bottom plate 1 is 0.25g/m 3 The closed cell foam of (2) to provide buoyancy. The flow data store 5 averages the flow data of a single monitoring device and stores the result as the flow at the location of the monitoring device.
Further, the flow rate monitoring device comprises a front-end flow rate measuring instrument 20 and a rear-end flow rate measuring instrument 37, wherein the front-end flow rate measuring instrument 20 is fixed at the bottom end of a front-end fixing base 18 through a straight rod 19, and the front-end fixing base 18 is fixed at the front end of the bottom plate 1; the rear end flow velocity measuring instrument 37 is fixed at the bottom end of a rear end fixing base 36 through a first straight rod 19, and the rear end fixing base 36 is fixed at the rear end of the bottom plate 1; the front end flow velocity measuring instrument 20 and the rear end flow velocity measuring instrument 37 are respectively connected with a data transmission line 25; the data transmission line 25 is connected to the flow rate data storage 5.
In this embodiment, the front-end flow rate measuring instrument 20 and the rear-end flow rate measuring instrument 37 both use an acoustic doppler velocity profile (ADV) of SonTek, so as to measure the flow rate, and during the measurement, the flow rate data is transmitted to the flow rate data storage via the data transmission line 25. And the flow rate of a single monitoring device is taken as the average value of the measured flow rates of the two flow rate measuring instruments in the front and the back.
Further, the primary infrared photographic device comprises a primary infrared lamp 27 and a primary infrared miniature camera 28 which are arranged inside the transparent colorless glass cover 13; the standby infrared photographic device comprises a standby infrared lamp 12 and a standby infrared miniature camera 10 which are arranged in a transparent colorless glass cover 13; the transparent colorless glass covers 13 of the primary infrared photographic device and the standby infrared photographic device are respectively installed at two ends of a rotating shaft 21 through a second straight rod 22, and the rotating shaft 21 and the second straight rod 22 are vertically arranged and rotatably installed at the bottom layer of the double-layer shell 2. The active infrared lamp 27 and the active infrared camcorder 28 transmit image information to the infrared photographing data storage 9 through the data line 35. In this embodiment, infrared camera all adopts the accessory in the fluorite EZVIZ infrared camera with the infrared lamp, and then guarantees the effect of making a video recording.
Furthermore, the main infrared photographic device is opposite to the lower part of the whole monitoring device, the condition of floating fish eggs and small fish fries in rivers is monitored, and when the glass cover of the main infrared photographic device is contaminated to weaken the image pickup effect, the rotating shaft 21 can rotate clockwise, and the standby infrared photographic device is rotated to be opposite to the lower part. The switching between the primary device and the standby device is controlled by the rotating shaft 21.
Further, the glass cover cleaning device comprises a third straight rod 7 arranged at the center of the bottom layer of the double-layer shell 2, a rotor 6 is arranged at the bottom end of the third straight rod 7, a cleaning cover body 15 is arranged at the bottom end of the rotor 6, the cleaning cover body 15 is matched with the outer wall of the transparent colorless glass cover 13, and a soft plush brush 14 is arranged on the inner side wall of the cleaning cover body 15. Through foretell glass cover belt cleaning device can be used for carrying out effectual washing to photographic arrangement's surface, and then guarantee subsequent photographic effect. In this embodiment, the cleaning cover body 15 is a rotatable furan plastic cover body, a layer of soft plush brush 14 is arranged between the plastic cover body and the glass cover, and the outer surface of the transparent colorless glass cover 13 is cleaned by the soft plush brush 14.
Further, a pressure sensor 16 is arranged on the side edge of the bottom opening of the double-layer shell 2, a soft plastic sheet 17 is clamped on the pressure sensor 16, the output end of the pressure sensor 16 is connected to the buffer 4 through a spring signal sensing line 3, and the buffer drives the rotor 6 through the spring signal sensing line to drive the cleaning device to clean the glass cover; when the main infrared photographic device jacks up and bends the soft plastic sheet 17, the pressure sensor 16 transmits a signal to the buffer 4 through the spring signal sensing line 3, and after the buffer buffers and delays the signal for 5s, the main infrared photographic device turns upwards, and the rotor 6 is driven to drive the cleaning device to clean the transparent colorless glass cover 13. The automatic control method can be used for automatically cleaning the transparent colorless glass cover 13.
Further, the top shackle 8 is connected with a cable 31 for fixing the position of the monitoring device through a signal lock 32, and the cable 31 is connected with a fixed cable 30 and fixes the position of a single monitoring device; the side shackle 11 is connected to the spud 34 by a retrieval cable 33; when the condition that monitoring facilities goes wrong and need retrieve equipment appears, the shackle 8 that signal hasp 32 control and hawser 31 are connected loosens, and then whole device can be along with the water flow direction down, retrieves under the pulling of rope 33 again, and monitoring devices can waft to the bank, installs light foam package 29 on the curb plate and prevents to retrieve in-process whole device and river bank and take place to scratch and cause the curb plate to destroy, and the staff accomplishes the recovery to the device through retrieving rope 33.
Further, the drainage device comprises a micro water pump 23 fixed on the top of the bottom plate 1, the micro water pump 23 is connected with a water pipe 24, and the other end of the water pipe 24 is fixed outside the device through a metal retaining ring 26. The water on the floor of the monitoring device can be drained from the monitoring device via the water pipe 24 by means of the above-mentioned drainage device.
Example 2:
a use method of drifting fish egg monitoring equipment comprises the following steps:
step 1: the whole monitoring device floats on the water surface through the bottom plate 1, the position of the whole monitoring device is fixed through the fixing rope 30, and meanwhile, a shoreside fixing pile 34 and a recovery rope 33 are fixed;
step 2: after all the monitoring devices are fixed, a front-end flow rate measuring instrument 20 and a main infrared miniature camera 28 in the device are started, and the flow rate condition of the cross section of the river, the number of floating eggs and the number of hatched young fishes are monitored;
step 3: the flow rate data monitored by the single monitoring are respectively stored in the flow rate data storage 5 and the infrared photography data storage 9;
step 4: data monitored by each monitoring device is transmitted to a signal base station on the shore through wireless signals and then is transmitted to a dispatching center in a unified mode through the signal base station.
A cascade reservoir dispatching method for improving the incubation rate of floating fish eggs comprises the steps of analyzing fish species which produce floating eggs at the downstream of a reservoir, and analyzing the spawning propagation period of the fish species; constructing a two-dimensional hydrodynamic model and a physical habitat model, and calculating the region of the downstream spawning field of the floating oviparous fishes in the reservoir under the condition of different discharge rates; aiming at the species of downstream fishes producing drifting eggs, the minimum flow velocity of the fishes eggs which can drift in the water flow is obtained; the monitoring equipment is arranged in spawning areas of fishes producing drifting eggs and different distances of downstream of the fishes, so that the hatching condition of the eggs is monitored, the flow rate of the downstream egg floating area is fed back to a dispatching center, a reservoir dispatching scheme is corrected, the requirement of hatching the eggs can be met by the flow rate in the downstream drifting area of a spawning ground, the probability of bottom-sinking death in the egg floating process is reduced, and the hatching rate of the eggs is improved.
Example 3:
the monitoring device and the method are used for carrying out an ecological dispatching experiment of the step reservoir at the downstream of the Yangtze river A, most of floating fish eggs have a relative specific gravity slightly larger than that of water after yielding and absorbing water and expanding, and gradually sink to the bottom of a river bed in a still water environment, so that the fish eggs are easy to develop badly and even die, the monitoring device and the dispatching method mainly ensure that the flow velocity of the downstream river section of a spawning site of the fish producing the floating eggs is more than 0.27m/s, and the hatching rate of the floating fish eggs at the downstream of the Yangtze river A is effectively improved.
Therefore, aiming at the main spawning ground area of the fishes producing the floating eggs at the downstream of the Yangtze river A, monitoring sections are respectively arranged at the spawning ground, the position 5km downstream of the spawning ground and the position 10km downstream of the spawning ground, the position 15km downstream of the spawning ground and the position 20km downstream of the spawning ground, and the average water depth of each monitoring section is respectively 4.6m, 4.1m, 3.5m and 4.3 m; the river width of each monitoring section is respectively 62.5m, 91.1m, 105.7m and 87.9 m; the number of monitoring devices arranged on a single monitoring section is determined according to the river width of the section, the monitoring effect is good when the monitoring devices are generally spaced by 4-8 m, and factors such as the riverbed terrain of the monitoring section are considered, so that the number of the monitoring devices arranged on each monitoring section is 12, 16, 18 and 14.
For each monitoring section, the number of the monitoring devices arranged on the fixed rope cable according to needs is determined, the high-molecular polyethylene rope cable and the fixed rope cable are tied with a fixing knot at the position where the monitoring equipment needs to be fixed, and the signal metal lock catch at the other end is buckled with a metal hanging ring at the top of the monitoring device. And fixing piles on two sides of each monitoring section, binding the recovery cable on the fixing piles, and binding the recovery cable on two layers of rear metal shackles of the monitoring device according to which river bank the single monitoring device is close to.
Fixing the fixed ropes on the two banks, putting the monitoring device into a river along with the fixed ropes, and starting to monitor the section data. The flow velocity data of the measuring point is obtained by storing the front and back flow velocity signals monitored by the single monitoring device in the flow velocity data of the two-layer cover-shaped structure, and then the flow velocity data is transmitted to a signal base station on the shore. The infrared camera shoots the river channel condition at the bottom of the monitoring device in real time, shot image data are transmitted to a signal base station at the bank through an infrared photographic data storage in a two-layer cover-shaped structure, then the signal base station transmits flow velocity information and infrared photographic image information to a cascade scheduling center, and the flow velocity information is used for adjusting a scheduling scheme of a cascade reservoir, changing the discharge flow of an upstream reservoir at the A river section and adjusting the flow velocity of a monitoring section.
And the infrared camera image information is in a dispatching center, the number of floating fish eggs and the number of juvenile fishes in the infrared camera image information are subjected to statistical analysis through a program of a deep learning image recognition technology, the number of fish eggs and the number of juvenile fishes of each section are obtained, and the effectiveness of the dispatching method can be further verified.
The specific monitoring result is the proportion of the total number of the floating fish eggs and the number of the small fish fries recorded by the monitoring devices in two years before and after the optimal scheduling method to the total number of the floating fish eggs, and the breeding and spawning periods of typical floating egg producing fishes such as four big Chinese carps in 5 months are considered, so that the data are the monitoring data of 2019 and 2020 in 5 months, the monitoring is performed by only adopting the device in 2019, and the targeted scheduling is performed by combining with a cascade reservoir at the upstream of A river in 2020. The specific data are as follows:
as can be seen from the above table, since the width of the river surface of the river a is increased after the section 1 is monitored, the flow rate of the river after the section 1 is monitored is reduced, and if corresponding scheduling measures are not taken, the hatchability of the eggs among the sections is overall low in 2019, and the situation that the floating eggs are poorly developed and even die exists; however, according to the flow velocity information fed back by the flow velocity measuring instrument in the monitoring device, the hatchability of the downstream floating roes can be remarkably improved by adjusting the scheduling scheme of the upstream step reservoir, and the condition that the floating roes are undeveloped and even die is effectively prevented.
Claims (7)
1. The utility model provides a drifting fish egg monitoring facilities which characterized in that: the device comprises a bottom plate (1) for supporting and mounting the whole device, wherein a double-layer shell (2) is fixed at the top of the bottom plate (1), and flow rate monitoring devices for monitoring the flow rate are mounted at two ends of the bottom plate (1); a main infrared photographic device and a standby infrared photographic device are arranged on the bottom layer of the double-layer shell (2), and a glass cover cleaning device for cleaning the main infrared photographic device and the standby infrared photographic device is hung in the middle of the bottom layer of the double-layer shell (2); a flow speed data storage device (5) and an infrared photography data storage device (9) are arranged on the upper layer of the double-layer shell (2), a top hook ring (8) is arranged at the top of the double-layer shell (2), and side hook rings (11) which are symmetrically arranged are arranged on the side wall of the double-layer shell (2); a drainage device is arranged in the bottom plate (1);
the flow velocity monitoring device comprises a front-end flow velocity measuring instrument (20) and a rear-end flow velocity measuring instrument (37), wherein the front-end flow velocity measuring instrument (20) is fixed at the bottom end of a front-end fixing base (18) through a first straight rod (19), and the front-end fixing base (18) is fixed at the front end of the bottom plate (1); the rear end flow velocity measuring instrument (37) is fixed at the bottom end of a rear end fixing base (36) through a first straight rod (19), and the rear end fixing base (36) is fixed at the rear end of the bottom plate (1); the front-end flow velocity measuring instrument (20) and the rear-end flow velocity measuring instrument (37) are respectively connected with a data transmission line (25); the data transmission line (25) is connected to a flow rate data storage (5);
the primary infrared photographic device comprises a primary infrared lamp (27) and a primary infrared miniature camera (28) which are arranged in a transparent colorless glass cover (13);
a pressure sensor (16) is arranged on the side edge of the bottom opening of the double-layer shell (2), a soft plastic sheet (17) is clamped on the pressure sensor (16), the output end of the pressure sensor (16) is connected to a buffer (4) through a spring signal sensing line (3), and the buffer drives a rotor (6) through the spring signal sensing line to drive a cleaning device to clean the glass cover;
when the main infrared photographic device jacks up and bends the soft plastic sheet (17), the pressure sensor (16) transmits a signal to the buffer (4) through the spring signal sensing line (3), the buffer buffers the signal and delays for a set time, and when the main infrared photographic device turns upwards, the rotor (6) is driven to drive the cleaning device to clean the transparent colorless glass cover (13);
the top shackle (8) is connected with a cable (31) for fixing the position of the monitoring device through a signal lock catch (32), and the cable (31) is connected with a fixed cable (30) and fixes the position of single monitoring equipment; the side shackle (11) is connected to the spud (34) by a retrieval cable (33).
2. The apparatus for monitoring drifting fish eggs of claim 1, wherein: the bottom plate (1) is provided with a side plate, and the bottom plate (1) and the side plate are both made of low-density plastic plates, so that the whole monitoring device is provided with buoyancy and can float on the water surface;
the flow speed data storage device (5) and the infrared photography data storage device (9) transmit data of a single monitoring device to a signal base station on the shore, and the data are collected and transmitted to the dispatching center by the signal base station.
3. The apparatus for monitoring drifting fish eggs of claim 1, wherein: the standby infrared photographic device comprises a standby infrared lamp (12) and a standby infrared miniature camera (10), wherein the standby infrared lamp (12) and the standby infrared miniature camera are arranged in a transparent colorless glass cover (13);
the transparent colorless glass covers (13) of the main infrared photographic device and the standby infrared photographic device are respectively arranged at two ends of a rotating shaft (21) through a second straight rod (22), and the rotating shaft (21) and the second straight rod (22) are vertically arranged and rotatably arranged at the bottom layer of the double-layer shell (2).
4. The apparatus for monitoring drifting fish eggs of claim 1, wherein: the main infrared photographic device is over against the lower part of the whole monitoring device to monitor the condition of floating fish eggs and small fish fries in rivers, and when the glass cover of the main infrared photographic device is contaminated to weaken the image pickup effect, the rotating shaft (21) can rotate clockwise to turn the standby infrared photographic device to be over against the lower part.
5. The apparatus for monitoring drifting fish eggs of claim 1, wherein: glass cover belt cleaning device is including installing third straight-bar (7) at double-deck shell (2) bottom central point, rotor (6) are installed to the bottom of third straight-bar (7), the bottom of rotor (6) is installed and is cleaned the cover body (15), clean the outer wall phase-match of the cover body (15) and transparent colourless glass cover (13), it is provided with soft pile brush (14) on the inside wall of the cover body (15) to clean.
6. The apparatus for monitoring drifting fish eggs of claim 1, wherein: when the monitoring equipment has problems and needs to be recovered, the signal lock catch (32) controls the top hook ring (8) connected with the cable (31) to be loosened, then the whole device flows downwards along with the water flow, and under the traction of the recovery cable (33), the monitoring device floats to the shore, the light foam bag (29) arranged on the side plate prevents the whole device from being scratched with the river bank in the recovery process to cause the damage of the side plate, and a worker can complete the recovery of the device through the recovery cable (33);
the drainage device comprises a micro water pump (23) fixed on the top of the bottom plate (1), the micro water pump (23) is connected with a water pipe (24), and the other end of the water pipe (24) is fixed outside the device through a metal retaining ring (26).
7. The use method of the drifting fish egg monitoring device of any one of claims 1-6, characterized in that the method comprises the following steps:
step 1: the whole monitoring device floats on the water surface through a bottom plate (1), the position of the whole monitoring device is fixed through a fixed rope (30), and meanwhile, a shore fixing pile (34) and a recovery rope (33) are fixed;
step 2: after all monitoring devices are fixed, a front-end flow rate measuring instrument (20) and a main infrared miniature camera (28) in the devices are started, and the flow rate condition of the cross section of the river, the number of floating eggs and the number of hatched juvenile fishes are monitored;
step 3: the flow rate data monitored by a single monitoring device are respectively stored in a flow rate data storage (5) and an infrared photography data storage (9);
step 4: data monitored by each monitoring device is transmitted to a signal base station on the shore through wireless signals and then is transmitted to a dispatching center in a unified mode through the signal base station.
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| CN113951186B (en) * | 2021-11-29 | 2023-04-07 | 重庆交通大学 | Test method for researching influence of turbulence on development process of roe embryo body |
| CN113925004B (en) * | 2021-11-29 | 2023-03-31 | 重庆交通大学 | Roe hatching system based on river course live simulation |
| CN114532260B (en) * | 2022-01-18 | 2022-12-09 | 中国长江三峡集团有限公司 | Accurate regulation and control system for breeding fish producing drifting eggs |
| CN115413608B (en) * | 2022-08-30 | 2023-06-20 | 中国长江三峡集团有限公司 | Positioning system and method for spawning site of drifting-producing oofish |
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