An antenna device and a security system including the same

Abstract

The invention relates to an antenna, especially to an antenna apparatus and a security and protection system including the same. The antenna apparatus comprises an upper housing, a lower housing and an antenna. The antenna apparatus is characterized in that the apparatus also includes: an antenna cavity, which is arranged between the upper housing and the lower housing and is used for placing the antenna and enabling the antenna to receive and transmit a variable frequency signal; and rotating shafts, which are arranged at the sides of the upper portions of the upper housing and the lower housing and are used for adjusting the angle of the antenna. And a circular hole for antenna passing is arranged at the centers of the rotating shafts. According to the invention, the antenna apparatus employs plastics and flexible metal wires, wherein the plastics and the flexible metal wires are welded by an ultrasonic way; and metal wires are arranged between the plastic upper housing and the plastic lower housing. In addition, reinforcing ribs are arranged at the upper housing and the lower housing and divides the antenna into several segments, so that the antenna can be rotated after being installed in a product and relates signal intensity can be adjusted during rotation. Because the antenna is divided into several segments by the plastic housings and intervals of all the segments are different, the antenna apparatus has the good receiving-transmitting effect for variable frequency signals.

Description

technical field [0001] The invention relates to an antenna, in particular to an antenna device and a security system including the device. Background technique [0002] At present, most of the wireless antennas on the market use fixed threaded antennas and rod antennas. The directionality of receiving and sending signals of this antenna will be different for different frequency signal strengths, and the response to variable frequency signals will be slower. The ability is worse, making the stability and safety of the product worse, and the anti-interference ability is reduced. Contents of the invention [0003] The main purpose of the present invention is to provide an antenna device, which aims to solve the problem that the current wireless antenna receives and transmits signals with different directions, the signal strength of different frequencies will be different, the response to variable frequency signals is slower, and the signal receiving and transmitting capabilit...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide an antenna device, which aims to solve the problem that the current wireless antenna receives and transmits signals with different directions, the signal strength of different frequencies will be different, the response to variable frequency signals is slower, and the signal receiving and transmitting capabilities are better. Poor, the stability and safety of the product deteriorate, and the anti-interference ability decreases

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