Remote monitoring device of fixed telephone

A technology of remote monitoring device and fixed telephone, applied in the field of electronics, can solve the problems of troublesome use and maintenance, high price, etc., and achieve the effects of low production cost, simple and convenient circuit structure, and increased monitoring distance

Inactive Publication Date: 2010-08-18
黄宇嵩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: The present invention utilizes the existing telephone and mobile phone network to implement remote monitoring, overcomes

Method used

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  • Remote monitoring device of fixed telephone
  • Remote monitoring device of fixed telephone

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Embodiment Construction

[0015] The related technologies of the present invention will be further described below in conjunction with the drawings, descriptions of the drawings and embodiments.

[0016] Circuit composition: The fixed-line remote monitoring device is composed of 6 parts including a disconnection signal detection circuit, a hands-free key trigger circuit, a delay circuit, a level conversion circuit, a redial key trigger circuit and a power supply.

[0017] The relationship between the components in the circuit can be connected according to the following instructions

[0018] 1. The signal detection circuit consists of a reed switch (JAG), a silicon transistor (BG1), and resistors (R1, R2). The base of silicon transistor BG1 is connected to one end of JAG, the other end of JAG is connected to one end of R1, the other end (upper end) of R1 is connected to the positive pole of the power supply (VCC), the collector of BG1 is respectively connected to one end of C1 and R2, and the other end ...

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PUM

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Abstract

Various telephone burglar alarms are sold at the market, but products with simple circuit structure, convenient use and low price are unavailable. In the invention, remote monitoring is carried out by a skillful and simple circuit by means of the existing hand-free function and re-dial function of a fixed telephone by utilizing the terminals (mobile phones, personal handphone systems and fixed telephones) of the traditional communication networks. A common component is used as a probe by the monitoring device, and the ranges of defence areas can be different areas of points, lines, planes and the like; once uninvited guests enter the defence areas or the condition that fortification valuables are moved and the like happens, the monitoring device immediately reports to a host or a manager by using a phone number stored in advance through the fixed telephone. The monitoring device can be used for monitoring warehouses, garages, household doors and windows or valuables and the like.

Description

technical field [0001] The invention belongs to the field of electronic technology and relates to a remote monitoring device for fixed telephones. Background technique [0002] There are various devices for remote anti-theft alarm on the market. At present, the methods of remote transmission of monitoring information mainly fall into the following categories: one is wired transmission with the largest market share; the other is wireless transmission through transceiver equipment; the third is transmission through telephone communication network. In actual use, the first two types have always had some problems, such as: the first type of wired transmission, although the reliability of information transmission is high, but it needs special wiring, the transmission lead is easy to be cut or damaged artificially, the use cost is high, and The mobility is poor, and the range of activities is limited; the second type is wireless transmission. Although the range of activities has ...

Claims

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Application Information

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IPC IPC(8): H04M11/00H04M1/02
Inventor 黄宇嵩
Owner 黄宇嵩
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