Device for checking field of view of surveillance camera for on-site work
Disclosed is a device for checking a field of view of a surveillance camera for on-site work, which rapidly and accurately checks a field of view in a field through a projection image without checking a filmed image through a monitor, is capable of installing the surveillance camera and adjusting a position of the surveillance camera, and is capable of outputting a visual warning according to a linkage with various image surveillance systems.
1. A device for checking a field of view of a surveillance camera, the device comprising:
a first laser generation module configured to generate spot laser light through an LED that emits light in a set wavelength band;
a second laser generation module configured to generate spot laser light through an LED that emits light in a set wavelength band;
an optical module including a diffusion plate configured to diffuse the spot laser light, a main optical system configured to generate a rectangular projection image by combining lenticular lenses, each of which converts diffuse laser light into linear laser light, in a rectangular frame shape, and an auxiliary optical system configured to change laser light of the second laser generation module to an optical image of a set pattern, and to output the image within the field of view of the surveillance camera, the optical module outputting the projection image and the optical image of the set pattern in a filming direction of the surveillance camera;
a driving module including a motor and a driving system configured to adjust a distance between the first laser generation module and the optical module and adjust a size of the projection image by driving the motor;
a control module configured to control the first laser generation module and the motor in response to an angle of view of the surveillance camera, and to make the field of view of the surveillance camera coincide with a location and a size of the projection image; and
a facility monitoring module including an information management unit in which facility information including a type and standard of a facility to be monitored is stored, an analysis unit configured to analyze an image of the surveillance camera to identify a moving object and to track a location and a movement path in real time, a determination unit configured to calculate a size of the moving object and to generate collision prediction information based on the facility information and the movement path, and an alarm unit configured to reflect a determination result of the determination unit and to output an optical image of a pattern set through the auxiliary optical system to an outside of a facility.
2. The device according to claim 1 , further comprising an image analysis module including an extraction unit configured to analyze an image filmed by the surveillance camera, and to extract a projection image from the image, and an adjustment unit configured to adjust a size of the extracted projection image to fit to an edge of the filmed image in conjunction with the control module.
3. The device according to claim 1 , wherein the first laser generation module includes:
a plurality of laser generation units to which color filters of set colors are applied and LEDs emitting light in different wavelength bands are applied; and
a conversion unit configured to move the laser generation units within a set range and convert a color of emitted light.