MONITORING APPARATUS

摘要

A monitoring apparatus includes an image-forming optical system aimed forward, an image sensor, an antenna, a first circuit board, a waveguide, an upper case, an information-processing circuit, a second circuit board, a connector, and a power-supply circuit. The connector is disposed at a rear side relative to the image-forming optical system. The power-supply circuit includes at least one capacitor, and a capacitor that is positioned at a highest location out of all of the at least one capacitor is disposed at a rear side relative to the image-forming optical system, which prevents the capacitor from obstructing the visual field of the image-forming optical system. Thus, the image-forming optical system is able to be located close to the power-supply circuit because the monitoring apparatus is very small in height.

主权项

1. A monitoring apparatus comprising:
an image-forming optical system aimed forward; an image sensor positioned at a focus of the image-forming optical system; an antenna member including an antenna with a main lobe that extends forward; a radio frequency circuit; a first circuit board including the radio frequency circuit thereon; a waveguide connecting an output end of the radio frequency circuit and the antenna; an upper case positioned above the antenna member and including a flat portion; an information-processing circuit; a second circuit board including the information-processing circuit thereon; a radio frequency circuit signal line connecting the radio frequency circuit to the information-processing circuit; an image signal line connecting the image sensor to the information-processing circuit; a connector electrically connected to the second circuit board; and a power-supply circuit providing DC power to the information-processing circuit and the radio frequency circuit; wherein the flat portion of the upper case is inclined in a direction in which the flat portion approaches a central axis of the main lobe of the antenna member at a location where the flat portion approaches a front end of the upper case; the second circuit board is positioned between the upper case and the antenna member; the upper case includes, in a middle or to a rear of the flat portion, a visual field window that includes a notch or a hole; an optical axis of the image-forming optical system passes through the visual field window; the image-forming optical system is fixed to the upper case; the flat portion is positioned below a visual field of the image-forming optical system; the connector is positioned at a rear side relative to the image-forming optical system; the power-supply circuit includes at least one capacitor; and a capacitor that is positioned at a highest location out of all of the at least one capacitor is disposed at a rear side relative to the image-forming optical system.