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10 Science Manual – Using Video Images for Fisheries Monitoring

3 Equipment

3.1 Housing

A dry and secure housing within close proximity of the site (cable runs greater than

250 metres should be avoided if possible) will be required for the recording

equipment.

For sites with no suitable equipment housing present, it will be necessary to install a

dry, secure cabinet to house the recording hardware, batteries (if used) and storage

media. Envico Engineering provides a range of glass reinforced polyester (GRP)

cabinets in all shapes and sizes suitable for this purpose (Figure 3.1). Contact

details are provided in Table . Alternatively, metal boxes may be preferable for sites

that are vulnerable to vandalism (Figure 3.1).

Figure 3.1: Examples of housing. The metal box houses a bank of three batteries

powering lighting and recording equipment in the green wall mounted cabinet. In the

second photograph is a GRP hut installed on a concrete base.

A video fish counting system has six major components:

• HOUSING

• POWER SUPPLY

• LIGHTING

• CAMERAS

• RECORDING HARDWARE

• IMAGE PROCESSING SOFTWARE

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Radiant DVMD1 Manual de usuario Pagina 18