System for transmitting signal by telephone line
A telephone line and telephone line technology, applied in the field of signal detection system, can solve the problems of innocent party's privacy violation, futile detection work, time-consuming and labor-intensive, etc.
Inactive Publication Date: 2009-08-05
黄德祥
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[0002] In recent years, there have been rumors in the society that people with hidden intentions use hidden pinhole cameras to install them in hotels, restaurants, or hostels, etc., secretly taking pictures of other people's privacy and then copying and selling them. privacy rights have been seriously violated, and hoteliers have also suffered
[0003] In order to curb this trend of sneak photography, hoteliers must detect the movement of sneak photography devices in every room from time to time, and this detection work is quite time-consuming and labor-intensive; in addition, the sneak photography devices are difficult to detect after being camouflaged, making the detection work in vain , these factors also make the hotel industry very troubled
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[0023] Please refer to figure 1 It is a functional block diagram of a preferred embodiment of the present invention, and figure 2 It is a system architecture diagram of a preferred embodiment of the present invention. The present invention is a signal detection system transmitted by telephone line, which includes a detection device 10 , an alarm device 30 , and a telephone line 50 . Wherein, the detection device 10 uses the telephone line 50 to transmit the signal measured by the detection device 10 to the alarm device 30 . In addition, in this embodiment, it is applied in the hotel industry. The detection device 10 is installed in each room of the hotel, and the alarm device 30 is arranged in front of the exchange 70 of the telephone office box 90 .
[0024] In this embodiment, each detection device 10 includes a radio frequency receiver 11 , a filter 12 , a signal amplifier 13 , a direct conversion receiver 14 , and a level converter 15 . Wherein, the radio frequency re...
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A signal detection system transmitted by telephone lines includes at least one detection device, at least one alarm device, and at least one telephone line. Wherein, each detection device has a radio frequency receiver, a filter, a signal amplifier, a direct conversion receiver, and a level converter; each alarm device also has a controller and a warning device. The present invention can detect whether there is an abnormal signal (such as the signal of a pinhole camera) in an area. If there is an abnormal signal, the detection device can transmit a warning signal to the alarm device through the telephone line, and trigger the alarm to achieve notification. staff purpose.
Description
technical field [0001] The invention relates to a signal detection system, especially a signal detection system suitable for transmission by telephone lines. Background technique [0002] In recent years, there have been rumors in the society that people with hidden intentions use hidden pinhole cameras to install them in hotels, restaurants, or hostels, etc., secretly taking pictures of other people's privacy and then copying and selling them. The right to privacy has been severely violated, and hoteliers have also suffered. [0003] In order to curb this trend of sneak photography, hoteliers must detect the movement of sneak photography devices in every room from time to time, and this detection work is quite time-consuming and labor-intensive; in addition, the sneak photography devices are difficult to detect after being camouflaged, making the detection work in vain , These factors also make the hotel industry very troubled. Contents of the invention [0004] The obj...
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IPC IPC(8): H04M11/04G08B25/08
Inventor 黄德祥
Owner 黄德祥