Fish optical sensing device
By using an optical sensing device composed of dual cameras to simulate the eye structure of fish and record the optical features around the fish, the problem of existing technologies being unable to reproduce the behavioral environment information of fish is solved, and accurate optical stimulus analysis is achieved.
Patent Information
- Application Number
- CN202520756545.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-04-21
AI Technical Summary
Existing technologies cannot effectively reproduce the surrounding environment information during fish behavior, resulting in rough or erroneous results from phototaxis experiments and an inability to accurately obtain the optical characteristics of the fish's activity environment.
An optical sensing device consisting of two cameras is used to simulate the eye structure of fish. Two single-lens underwater cameras are fixed on an arc-shaped camera bracket, and the lens angle is adjusted to match the eye angle of fish to record the optical features and images on the left and right sides.
It directly acquires the optical characteristics of the external environment received by the fish's eyes, and the video content is closest to the actual observation, providing accurate analysis of fish behavioral stimuli.
Smart Images
Figure CN223798292U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a fish optical perception device, in particular to a device for recording optical stimulation received by fish when moving in water, and belongs to the field of fish behavior research. BACKGROUND
[0002] The existing marking method obtains fish behavior trajectory data, which is only used to show the fish behavior trajectory and cannot provide surrounding environment information in the fish behavior process, so the stimulation factor of the fish behavior cannot be restored. The exploration of the stimulation factor of the fish migration behavior is a defect in the prior art. In the prior art, the motion state of the fish in space is captured, and the environmental perception of the fish is not restored, and the perception of the surrounding environment by the fish is the fundamental reason for stimulating the fish behavior.
[0003] The light emitted by the light source is not exactly the same as the light received by the fish, and may even be very different, because the light enters the water body through the air, refraction and reflection occur, and due to the instability of the water surface, the amount of refraction and reflection also changes; on the other hand, the light entering the water body is scattered by the unevenly distributed particles in the water body when propagating in the water body; thirdly, the spectrum of the sun source, the moon source and the artificial light source is inconsistent, and their influence on the fish is also very different. However, there is no related processing scheme in the above-mentioned related patents, so the results obtained by the fish phototaxis experiment through the above-mentioned prior art are rough, even wrong. UTILITY MODEL CONTENT
[0004] The technical problem to be solved by the utility model is to provide a fish optical perception device to obtain the optical characteristics around the fish activity environment.
[0005] The optical perception device comprises two single-lens underwater cameras and two camera supports.
[0006] The camera support comprises a fixed support connecting end, a double-sided camera connecting end and a tail adjustment locking end.
[0007] The camera support comprises a fixed support connecting end, and the front part is connected to each other by a rotating shaft and is opened and closed around the rotating shaft.
[0008] The camera support has a sliding groove in the transverse direction, the single-lens underwater camera is fixed on the sliding groove and slides along the sliding groove.
[0009] The camera support is arc-shaped, and different arc shapes can be replaced according to needs.
[0010] Two single-lens underwater cameras are fixed on the sliding groove of the camera support, and the included angle of the two underwater camera lens planes is adjusted to the included angle of the two eyes of the experimental object, to form a double-camera set;
[0011] The double-camera set records the optical characteristics and images on the left and right sides respectively, and the recording content is closest to the actual observation of the experimental object.
[0012] The beneficial effects of the utility model lie in:
[0013] 1. The optical perception device is used to directly obtain the external environment and optical characteristics obtained by fish eyes. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 The optical perception device C2 is shown in the schematic diagram;
[0015] Figure 2 The optical perception device is shown in the schematic diagram after installation;
[0016] Figure 3 The plane included angle between the optical perception device C2 and the light source is shown in the schematic diagram. DETAILED DESCRIPTION
[0017] The utility model will be further described in combination with the drawings.
[0018] Embodiment 1
[0019] In this embodiment, the schizothorax in a wide and shallow river is taken as the observation object, and the following steps are adopted to realize it:
[0020] The navigation device is installed on the top of the optical perception device of the fish, the trajectory of the observed fish is taken as the planned route, the optical perception device is manually dragged to move along the planned route, the optical stimulation received by the fish is recorded, and the surrounding environment of the fish is recorded.
[0021] The optical perception device comprises two single-lens underwater cameras C21 and two camera supports C22, and the two single-lens underwater cameras C21 are fixed on the camera supports C22;
[0022] The camera support C22 comprises a fixed support connecting end, a double-sided camera connecting end and a tail adjusting and locking end;
[0023] The camera support C22 comprises a fixed support connecting end, and the front part is connected with each other by a rotating shaft C24 and is opened and closed around the rotating shaft C24;
[0024] The camera support C22 is provided with a sliding groove C23 in the transverse direction, the single-lens underwater camera C21 is fixed on the sliding groove C23 and slides along the sliding groove C23;
[0025] The camera support C22 is arc-shaped, and different arc shapes are replaced as needed;
[0026] Two single-lens underwater cameras C21 are fixed on the sliding groove C23 of the camera support C22, and the two underwater camera lens planes are adjusted to the angle between the eyes of the experimental object to form a double-camera group C2; in this embodiment, the angle between the eyes of the Schizothorax fish is 35°, and the angle between the two cameras is adjusted to 35°.
[0027] The double-camera group C2 records the optical characteristics and images on the left and right sides, respectively, and the recording content is closest to the actual observation of the experimental object;
[0028] The tail adjustment locking end of the camera support is provided with two cross-fixing grooves C25, and the two cross-fixing grooves C25 are fixed together through a fixing bolt C26; when the relative positions of the two cross-fixing grooves C25 are adjusted, the angles of the two sliding grooves C23 can be changed, that is, the angle between the two single-lens underwater cameras C21 is changed.
[0029] Embodiment 2
[0030] According to the swimming trajectory data in the river, the optical perception device of the fish is repeated in the movement process according to the movement trajectory and posture, and the optical stimulation received by the fish is recorded.
[0031] The top of the optical perception device of the fish is installed with a navigation device, the observed fish trajectory is taken as a planned route, the optical perception device is manually dragged to move along the planned route, the optical stimulation received by the fish is recorded, and the surrounding environment of the fish is recorded.
[0032] The optical perception device comprises two single-lens underwater cameras C21 and two camera supports C22, wherein the two single-lens underwater cameras C21 are fixed on the camera supports C22;
[0033] The camera support C22 comprises a fixed support connecting end, a double-sided camera connecting end, and a tail adjustment locking end;
[0034] The camera support C22 comprises a fixed support connecting end, and the front part is connected to each other through a rotating shaft C24 and is opened and closed around the rotating shaft C24; the camera support C22 is provided with a sliding groove C23 in the transverse direction, and the single-lens underwater camera C21 is fixed on the sliding groove C23 and slides along the sliding groove C23;
[0035] The camera support C22 is arc-shaped, and different arc shapes are replaced as needed;
[0036] Two single-lens underwater cameras C21 are fixed on the sliding slots C23 of the camera support C22, and the angle between the lens planes of the two underwater cameras C21 is adjusted to the angle between the two eyes of the experimental object to form a double-camera group C2; in this embodiment, the angle between the two eyes of the Lhasa naked schizothorax is 35°, and the angle between the two cameras is adjusted to 35°.
[0037] The double-camera group C2 records the optical characteristics and images on the left and right sides respectively, and the recording content is closest to the actual observation of the experimental object;
[0038] The tail adjustment locking end of the camera support is provided with two intersecting fixed slots C25, and the two intersecting fixed slots C25 are fixed together through a fixed bolt C26; when the relative positions of the two intersecting fixed slots C25 are adjusted, the included angle between the two sliding slots C23 can be changed, that is, the included angle between the two single-lens underwater cameras C21 is changed. In this embodiment, the angle between the two eyes of the Lhasa naked schizothorax is 28°.
[0039] Table 1 Relationship between fish body and light source
[0040]
Claims
1. An optical sensing device for fish, characterized by: The utility model relates to a double camera underwater camera system, including: Two single-lens underwater cameras, two camera supports, the two single-lens underwater cameras are fixed on the camera support; The camera support includes a fixed support connecting end, a double-sided camera connecting end and a tail adjustment locking end.
2. A fish optical sensing device according to claim 1, characterized in that: The camera support includes a fixed support connecting end, and the front part is connected with each other by a rotating shaft and is opened and closed around the rotating shaft.
3. The fish optical sensing device of claim 1, wherein: The camera support is provided with a sliding groove in the transverse direction, and the single-lens underwater camera is fixed on the sliding groove and slides along the sliding groove.
4. The fish optical sensing device of claim 1, wherein: The camera support is arc-shaped, and different arc shapes can be replaced according to requirements; the two single-lens underwater cameras are fixed on the sliding groove of the camera support, the included angle of the two underwater camera lenses is adjusted to the included angle of the eyes of the experimental subject, a double-camera group is formed, the double-camera group records the optical characteristics and images on the left and right sides respectively, and the recording content is closest to the actual observation of the experimental subject.