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Fish passing counting system for fish passing facility of hydraulic and hydropower engineering

A technology for fish passing facilities, water conservancy and hydropower, which is applied in water conservancy projects, marine engineering, counting objects, etc. It can solve the problems of frequent counting errors, large manual counting errors, affecting the accuracy and objectivity of fish passing effects, and achieve accurate counting. Reliable, easy to implement, and beneficial to the construction of ecological and environmental protection facilities

Active Publication Date: 2017-01-11
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to reflect the fish-passing effect of the fish-passing facilities, at present, artificial observation rooms are usually set up in the fish-passing facilities for manual counting, or cameras are set up to take pictures before counting, resulting in large errors in manual counting, especially counting errors caused by artificial factors More frequent, seriously affecting the accuracy and objectivity of evaluating the effect of passing fish

Method used

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  • Fish passing counting system for fish passing facility of hydraulic and hydropower engineering

Examples

Experimental program
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Effect test

Embodiment 1

[0029] When a single fish passes through the entrance section of the fishway 5, the counting probe 1 detects the passage of the fish 4, triggers the counter 2 to count, and when a fish 4 enters the entrance section of the fish passage facility, the counting probe 1 detects the passage of the fish 4 again , trigger the counter 2 to count again to realize continuous cumulative counting.

Embodiment 2

[0031] When two or more fish 4 of similar size pass through the entrance section of the fishway 5 side by side at the same time, the counting probe 1 at the entrance is triggered, but because they pass side by side at the same time, some fish 4 are counted by the probe 1 The fish 4 on one side is blocked, and the counting probe 1 can only detect the nearest fish 4 from the counting probe, and the counter 2 counts as one. However, when the fish 4 continue to go up to other groups of counting probes 1, due to the different upstream speeds of the fish, they will be successively detected by the subsequent counting probes 1, and thus the correct number of fish 4 will be recorded.

Embodiment 3

[0033] The fish 4 will turn back multiple times in the fishway 5. At this time, the counting probe 1 arranged between the outlet and the entrance in the fishway 5 will repeatedly detect the passing fish 4 and generate counts. The quantity can reflect the degree of retention and aggregation of fish in the fish pass 5.

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Abstract

The invention discloses a fish passing counting system for a fish passing facility of hydraulic and hydropower engineering, and belongs to the technical field of hydraulic and hydropower engineering. The fish passing counting system comprises a fish passing way. A plurality of counting probes are arranged on the two sides of the fish passing way and connected with counters, and meanwhile the counting probes and the counters are connected with a power source at the same time. According to the technical scheme, an infrared counting device is used for inducting a bijection induction device to count the fish passing amount, counting is more accurate and reliable, and the defect that manual counting is likely to go wrong is overcome; continuous counting can be achieved, the final fish passing amount of the fish passing facility can be convenient to estimate accurately, and meanwhile the gathering degree of fishes in the fish passing facility can be reflected; and implementation is convenient, running and maintaining are easy, and establishing of an ecological environment protection facility is facilitated.

Description

technical field [0001] The invention belongs to the technical field of water conservancy and hydropower engineering, and relates to ecological environment protection technology in water conservancy and hydropower engineering, in particular to a fish counting system for fish passing facilities of water conservancy and hydropower projects. Background technique [0002] The construction of water conservancy and hydropower projects usually has adverse effects on aquatic ecology, especially on fish. The main manifestation is that the construction of dams has caused river channel obstruction, resulting in the compression of the living environment of fish resources, thus affecting the genetic normality of fish resources. exchange, eventually leading to the gradual depletion and disappearance of fish stocks. [0003] In order to alleviate this adverse effect, fish passing facilities, such as fishways, fish ladders, and imitation natural passages, are usually installed during the con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B8/08G06M11/00
CPCY02A40/60E02B8/08G06M11/00
Inventor 张虎成杨桃萍徐海洋
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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