CN202494747U

CN202494747U - Cable monitoring device

Info

Publication number: CN202494747U
Application number: CN2012200464708U
Authority: CN
Inventors: 林桂珠
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-14
Filing date: 2012-02-14
Publication date: 2012-10-17
Anticipated expiration: 2022-02-14

Abstract

The utility model relates to a cable monitoring device. The cable monitoring device comprises a switch trigger circuit, a microprocessor control circuit, and a GSM module transceiver circuit. Signals acquired by the switch trigger circuit are outputted to the GSM module transceiver circuit through the control of the microprocessor control circuit, and the microprocessor control circuit is in two-way data communication with a watchdog circuit. In the device, the switch trigger circuit is adopted to be connected in a no power cable or a communication signal cable, the ends of the cable are short-circuited, and the primary side of the cable is connected in the present circuit. When the cable is cut off, control signals can be sent through the control and judgment of the microprocessor so as to drive the GSM module circuit to send alarm information to the owner or 110 alarm center staff, so the on-line monitoring purpose that can effectively prevent the cable from being stolen is achieved. The cable monitoring device has characteristics of economy and practicability, and can be served as an instrument for detecting the continuity of the cable.

Description

A kind of cable monitoring device

Technical field

The utility model relates to a kind of monitoring device, particularly be a kind of cable monitoring device.

Background technology

No matter be commercial real estate project or engineering in the construction period, power cable or telecommunication cable are stolen to happen occasionally, and brings the engineering that also influenced of economic loss to hand over the phase to the owner.

The utility model content

The purpose of the utility model is to overcome above-mentioned deficiency, provides a kind of and can effectively take precautions against the stolen cable monitoring device of cable.

The utility model solves the technical scheme that its technical matters adopted: a kind of cable monitoring device; Comprise switch triggering circuit, microprocessor control circuit and gsm module transmission circuit; The signal of said switch triggering circuit collection exports gsm module transmission circuit, said microprocessor control circuit and watchdog circuit bidirectional data communication to through microprocessor control circuit control.

Said switch triggering circuit comprises transistor Q1, connects the resistance R 1 and the direct earth capacitance C1 of power supply; Resistance R 1 and capacitor C 1 are connected to the base stage of transistor Q1; With the terminal short circuit of power cable or telecommunication cable, and its primary side also is connected in the base stage of transistor Q1, other end ground connection.

Said gsm module transmission circuit adopts the WAVECOM023031 short message transceiving module.

Through adopting above-mentioned technical scheme; The beneficial effect of the utility model is: this device adopts the switch triggering circuit to be connected in the cable of not charged or signal of communication, and with the cable end piece short circuit, its primary side is connected in the middle of this circuit; When cable is cut off; After can judging through microprocessor control, send control signal driving gsm module circuit and send warning message, reach the stolen on-line monitoring purpose of effective strick precaution cable to owner or 110 alarm center personnel; Have economical and practical characteristics, and can be used as cable break-make detecting instrument.

Description of drawings

Fig. 1 is the frame assumption diagram of the utility model;

Fig. 2 is the circuit theory diagrams of the utility model.

Embodiment

Like Fig. 1, shown in Figure 2; A kind of cable monitoring device of the utility model; Comprise switch triggering circuit 1, microprocessor control circuit 2 and gsm module transmission circuit 3; The signal that said switch triggering circuit 1 is gathered exports gsm module transmission circuit 3 to through microprocessor control circuit 2 controls, said microprocessor control circuit 2 and watchdog circuit 5 bidirectional data communications.

Said switch triggering circuit 1 comprises transistor Q1, connects the resistance R 1 and the direct earth capacitance C1 of power supply; Resistance R 1 and capacitor C 1 are connected to the base stage of transistor Q1; With the terminal short circuit of power cable or telecommunication cable, and its primary side also is connected in the base stage of transistor Q1, other end ground connection.This moment, transistor Q1 was in cut-off state, and the 21st end I/O mouth of single-chip microcomputer IC1 also is high level state simultaneously, and single-chip microcomputer IC1 does not send the controlling and driving signal.

When the undesirable cuts off power cable or telecommunication cable; Short-circuit line is disconnected; Transistor Q1 obtains base bias voltage and saturation conduction through resistance R 1, and transistor Q1 collector is output as low level signal, and this signal is input to single-chip microcomputer IC1 the 21st pin and also is low level state; After the comprehensive judgement of single-chip microcomputer IC1 internal microprocessor, send control signal; Form gsm module transmission circuit 3 by single-chip microcomputer IC1 the 1st, 2,3,6 pin and GSM short message transceiving module U1, pull-up resistor R3-R6, said gsm module transmission circuit 3 adopts the WAVECOM023031 short message transceiving module, sends the data decoding command signal through single-chip microcomputer IC1 to GSM short message transceiving module U1; Behind the module communication circuit decoding of inner SIM of GSM short message transceiving module U1 and module composition; Send SMS alarm information to owner or 110 alarm center operators on duty, timely and effective notice is reported to the police, and reduces property loss.

Form watchdog circuit 5 by watchdog chip IC2 and single-chip microcomputer IC1, form reset circuit, can reset, prevent that single-chip microcomputer IC1 internal processes is in the endless loop state single-chip microcomputer IC1 the 9th pin and watchdog chip IC2 the 7th pin by resistance R 2, capacitor C 2.

An above-described preferred embodiment that is merely the utility model can not limit the scope that the utility model is implemented, and every equalization of being done according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.

Claims

1. cable monitoring device; It is characterized in that: comprise switch triggering circuit (1), microprocessor control circuit (2) and gsm module transmission circuit (3); The signal that said switch triggering circuit (1) is gathered exports gsm module transmission circuit (3) to through microprocessor control circuit (2) control, said microprocessor control circuit (2) and watchdog circuit (5) bidirectional data communication.

2. cable monitoring device according to claim 1; It is characterized in that: said switch triggering circuit (1) comprises transistor Q1, connects the resistance R 1 and the direct earth capacitance C1 of power supply; Resistance R 1 and capacitor C 1 are connected to the base stage of transistor Q1; With the terminal short circuit of power cable or telecommunication cable, and its primary side also is connected in the base stage of transistor Q1, other end ground connection.

3. cable monitoring device according to claim 1 and 2 is characterized in that: said gsm module transmission circuit (3) adopts the WAVECOM023031 short message transceiving module.