A portable site survey device

Abstract

The invention discloses a portable field survey device, which comprises: a front cover is located on one side of the casing, a rear cover is provided on the other side of the casing, the handle is installed on the top of the casing, a fixed bracket is connected with one side of the handle, and the handle The other side of the lifting mechanism is connected to the top of the lifting mechanism, and the bottom of the lifting mechanism is connected to the rear cover; the diffuse reflection light source includes an upper lamp tube, and a uniform light plate, a lens, and an array LED light source are installed in the upper lamp tube in sequence from front to back ; The multi-band uniform light source includes a metal fixed cylinder, in which a filter, lens c, lens b, lens a and a single LED light are clamped sequentially from front to back in the metal fixed cylinder; the grazing light source includes the following Lamp tube, the lower lamp tube is equipped with a cylindrical mirror, an aspheric lens and an array LED light source b from front to back; this device integrates the light sources required for on-site investigation, greatly reducing the size of the equipment and reducing the work of the case-handling personnel Quantity, to meet the needs of the investigators for the light source in the on-site investigation.

Description

technical field [0001] The invention relates to a criminal investigation equipment, in particular to a portable on-site investigation device. Background technique [0002] In the field of criminal investigation technology, crime scene investigation is a very important part. Investigators in order to complete the investigation of the crime scene. It is often necessary to carry different types of light sources, cameras and other equipment to assist in case handling. The equipment is bulky and bulky, which increases the workload of case handlers and reduces work efficiency. In addition, there are problems in the footprint collection at the crime scene that are greatly interfered by the collected objects, the image collection contrast is not high, and the image collection is not clear. Contents of the invention [0003] In view of the above problems, the present invention proposes a portable on-site survey device, which integrates the light sources required for on-site surve...

AI Technical Summary

Problems solved by technology

It is often necessary to carry different types of light sources, cameras and other equipment to assist in case handling. The equipment is bulky and bulky, which increases the workload of case handlers and reduces work efficiency

In addition, there are problems in the footprint collection at the crime scene that are greatly interfered by the collected objects, the image collection contrast is not high, and the image collection is not clear.

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