Abstract: The present invention relates to an entrance device housing with detachable front panel, mainly comprising: an accommodating body and a detachable front panel, in which the panel of the entrance device housing is detachable, so that the users are able to replace the panel of the entrance device by themselves as they like. Moreover, both the upper cover and the bottom box of the accommodating body include a plurality of water-guiding grooves, such that the water droplets onto the front surface and the rear surface of the accommodating body would be ruled out via the water-guiding grooves. Furthermore, a situation light accommodating structure is disposed on the detachable panel, and the light source in the situation light accommodating structure can emit light via the light-emitting surface during night, so as to facilitate the doorplate on the entrance wall show a beautiful and dreamy situation.

Abstract: The present invention relates to an entrance guard device with light-uniformization structure, comprising: a housing, a main controlling module, a keypress module, a display module, a doorbell module, and an image capture module, wherein the image capture module consists of an image capture device accommodating body, a light-emitting assembly, an image capture device, a light-uniformization member, and a lens. In the present invention, the light-uniformization member is disposed at the front of a plurality of light-emitting chips of the light-emitting assembly, such that the light emitted by the light-emitting chips is able to enter the light-uniformization member, and then the light would be uniformly emitted by the light-uniformization member after the light are refracted; Therefore, the uniform light may shine on people face for making an image capture device of the image capture module capture the facial feature of people completely and clearly.

Abstract: A network bandwidth monitoring and regulating system to retrieve a optimal bandwidth area for reducing risk of losing the packet and upgrading network quality including a packet loss rate and a jitter of packet delayed variance value complying with RFC 3550; and a network bandwidth of the system being divided into redundant, optimal bandwidth, and congestion areas assigned and distinguished according to presence of rise of the jitter of packet delayed variance value and the packet loss rate.