CN208028906U - A kind of telecommunication signal monitoring device - Google Patents

Abstract

The utility model discloses a kind of telecommunication signal monitoring devices, including signal processing circuit, comparison circuit and control circuit, the signal that the signal processing circuit inputs a signal into end input is filtered, comparison circuit is inputted after enhanced processing, output high level signal or low level signal input control circuit after the signal received is compared by the comparison circuit with original signal, the control circuit is connected when receiving the high level signal of comparison circuit output, it controls sender unit E1 and sends abnormal alarm signal to monitoring terminal, with simple in structure, the characteristic being skillfully constructed, effectively telecommunication signal is monitored, improve the interference free performance and accuracy of circuit.

Description

A kind of telecommunication signal monitoring device

Technical field

The utility model is related to signal monitoring technical fields, more particularly to a kind of telecommunication signal monitoring device.

Background technology

Telecommunications refers to that either electro-optical system transmits, emits or receive voice, text using wired, wireless electromagnetic system The activity of word, data, image and other any form informations, and the transmission of telecommunication signal is carried out by communication system , the fundamental for forming communication system includes sender, channel and receiver, wherein receiver will connect signal Receipts, conversion and transmission processing, error is susceptible in processing procedure causes telecommunication signal mistake to send.

So the utility model provides a kind of new scheme to solve the problems, such as this.

Utility model content

For the above situation, to overcome the defect of the prior art, the utility model to be designed to provide a kind of telecommunications letter Number monitoring device has characteristic that is simple in structure, being skillfully constructed, is effectively monitored to telecommunication signal, improve circuit Interference free performance and accuracy.

Its technical solution solved is a kind of telecommunication signal monitoring device, including signal processing circuit, comparison circuit and control Circuit processed, the signal that the signal processing circuit inputs a signal into end input are filtered, input comparison circuit after enhanced processing, Output high level signal or low level signal are defeated after the signal received is compared by the comparison circuit with original signal Enter control circuit, the control circuit is connected when receiving the high level signal of comparison circuit output, controls sender unit E1 sends abnormal alarm signal to monitoring terminal;

The control circuit includes triode Q3, one end of the collector connecting resistance R10 of triode Q3 and triode Q4's Collector, the gate pole of one end of the emitter connecting resistance R11 of triode Q3 and the base stage of triode Q4, thyristor Q5, resistance R10 Another termination power+12V, the emitter of triode Q4 connects the anode of thyristor Q5, the other end ground connection of resistance R11, brilliant lock The cathode of pipe Q5 meets sender unit E1.

Due to the use of above technical scheme, the utility model has the following advantages that compared with prior art；

1, for the control circuit when receiving the high level signal of comparison circuit output, triode Q3 conductings, are three poles Gate pole trigger signal is provided for thyristor Q5 while the base stage of pipe Q4 provides bias, triode Q4 conductings carry for thyristor Q5 For forward conduction voltage, thyristor Q5 conductings, sender unit E1 sends abnormal alarm signal to monitoring terminal, works as comparison circuit When exporting low level signal, triode Q3 shutdowns, triode Q4 shutdowns, the disconnection of thyristor Q5 dead electricity, sender unit E1 stoppings Work, wherein, power supply+12V through resistance R10 is triode Q3, triode Q4 provides collector bias, then through triode Q4 three Forward conduction voltage is provided to thyristor Q5 when pole pipe Q4 conductings, triode Q3 plays on-off action, controls the break-make of control circuit, Triode Q4 plays on-off actions, the shutdown after the Q5 conductings of control thyristor, have the characteristics that it is simple in structure, be skillfully constructed, effectively Will monitor that the information of abnormal telecommunication signal has been sent to monitoring terminal, improve monitoring efficiency, reduce cost.

2, the signal processing circuit inputs a signal into the signal of end input through resistance R1, resistance R2 and capacitance C1, capacitance Comparison circuit is inputted after triode Q2, triode Q1 amplify signal again after the filter circuit filtering that C2, capacitance C3 are formed, In, resistance R1 and capacitance C1, capacitance C2 composition low-pass filter circuits carry out low-pass filtering, capacitance C3 and resistance R2 groups to signal At high-pass filtering circuit, high-pass filtering is carried out, has the characteristics that fast response time, power supply+12V is through resistance R4 and filtered letter Triode Q1 and triode Q2 collectors and base stage are inputted number together, so that AC signal is become direct current signal, then through triode Q1 It is amplified with triode Q2, capacitance C4 and capacitance C5 are played a filtering role, and improve the interference free performance of circuit, have structure letter Singly, the characteristics of being skillfully constructed, effectively raises the accuracy and response speed of monitoring signals, and improves the anti-dry of circuit Immunity energy.

Description of the drawings

Fig. 1 is a kind of circuit module figure of telecommunication signal monitoring device of the utility model.

Fig. 2 is a kind of circuit diagram of telecommunication signal monitoring device of the utility model.

Specific implementation mode

Aforementioned and other technology contents, feature and effect in relation to the utility model, in following cooperation with reference to figures 1 through attached Fig. 2 is in the detailed description of embodiment, can clearly present.The structure content being previously mentioned in following embodiment is to say Bright book attached drawing is reference.

Each exemplary embodiment of the utility model is described below with reference to accompanying drawings.

A kind of telecommunication signal monitoring device, including signal processing circuit, comparison circuit and control circuit, the signal processing The signal that circuit inputs a signal into end input is filtered, inputs comparison circuit after enhanced processing, and the comparison circuit will receive To signal be compared with original signal after output high level signal or low level signal input control circuit, the control Circuit is connected when receiving the high level signal of comparison circuit output, control sender unit E1 send abnormal alarm signal to Monitor terminal;

The control circuit includes triode Q3, one end of the collector connecting resistance R10 of triode Q3 and triode Q4's Collector, the gate pole of one end of the emitter connecting resistance R11 of triode Q3 and the base stage of triode Q4, thyristor Q5, resistance R10 Another termination power+12V, the emitter of triode Q4 connects the anode of thyristor Q5, the other end ground connection of resistance R11, brilliant lock The cathode of pipe Q5 meets sender unit E1;

In order to which the abnormal signal monitored is sent to monitoring terminal, in order to which staff repairs in time, reduce economical Loss, for the control circuit when receiving the high level signal of comparison circuit output, triode Q3 conductings, are triode Q4's Gate pole trigger signal is provided for thyristor Q5 while base stage provides bias, triode Q4 conductings provide forward direction for thyristor Q5 Conducting voltage, thyristor Q5 conductings, sender unit E1 send abnormal alarm signal to monitoring terminal, when comparison circuit output is low When level signal, triode Q3 shutdowns, triode Q4 is turned off, and thyristor Q5 dead electricity disconnects, and sender unit E1 is stopped, In, power supply+12V through resistance R10 is triode Q3, triode Q4 provides collector bias, then through triode Q4 in triode Q4 Forward conduction voltage is provided to thyristor Q5 when conducting, triode Q3 plays on-off action, controls the break-make of control circuit, triode Q4 plays on-off actions, the shutdown after control thyristor Q5 conducting, have the characteristics that it is simple in structure, be skillfully constructed, will effectively supervise The information for measuring abnormal telecommunication signal has been sent to monitoring terminal, improves monitoring efficiency, reduces cost.

The signal processing circuit includes resistance R1, a termination signal input part and capacitance C1 of resistance R1, capacitance C3 One end, one end of another termination capacitor C2 of resistance R1, one end and capacitance C3 of resistance R2 the other end, the other end of capacitance C1 Be grounded with the other end of capacitance C2, the other end ground connection of resistance R2, another terminating resistor R4 of capacitance C3, one end of resistance R3 and The collector of triode Q2, the base stage of triode Q2, three pole of another termination of another termination power+12V of resistance R4, resistance R3 The collector of pipe Q1, the base stage of triode Q2 connect one end of capacitance C4, the emitter of triode Q2 connect capacitance C4 the other end and The base stage of triode Q1, one end of capacitance C5, the emitter of triode Q1 connect the other end of capacitance C5;

It is described in order to improve the monitoring signals accuracy of signal input part input, raising device accuracy and response speed The signal that signal processing circuit inputs a signal into end input is formed through resistance R1, resistance R2 and capacitance C1, capacitance C2, capacitance C3 Comparison circuit is inputted after triode Q2, triode Q1 amplify signal again after filter circuit filtering, wherein, resistance R1 and electricity Holding C1, capacitance C2 composition low-pass filter circuits to signal progress low-pass filtering, capacitance C3 and resistance R2 form high-pass filtering circuit, High-pass filtering is carried out, has the characteristics that fast response time, power supply+12V input three poles together through resistance R4 and filtered signal Pipe Q1 and triode Q2 collectors and base stage make AC signal become direct current signal, then are carried out through triode Q1 and triode Q2 Amplification, capacitance C4 and capacitance C5 are played a filtering role, and improve the interference free performance of circuit, have spy that is simple in structure, being skillfully constructed Point, effectively raises the accuracy and response speed of monitoring signals, and improves the interference free performance of circuit.

The comparison circuit includes resistance R5, the emitter of a termination triode Q1 of resistance R5, the other end of resistance R5 Connect the inverting input of operational amplifier A R1, the homophase input terminating resistor R6 of operational amplifier A R1, one end of resistance R8, electricity Hinder one end of one end and signal source V1 of another terminating resistor R9 of R8, another termination power+12V, signal source V1 of resistance R9 Other end ground connection, one end of the output terminating resistor R of operational amplifier A R1, another terminating resistor R6's of resistance R7 is another The base stage of the cathode of end and diode D1, triode Q3, the anode of diode D1 connect the anode of diode D2, the moon of diode D2 Pole is grounded;

Whether abnormal in order to detect the signal monitored, the comparison circuit utilizes operational amplifier A R1 and resistance R6, electricity The original that the signal and signal source V1 that the hysteresis comparator that resistance R7, resistance R5, resistance R8 are formed exports signal processing circuit generate After beginning signal is compared, then it is output to control circuit after the diode D1 and diode D2 amplitude limits that are concatenated, works as monitoring signals When abnormal, comparison circuit exports high level signal, and when monitoring signals are normal, comparison circuit exports low level signal, wherein, letter Number source V1 provides original signal, and power supply+12V accesses circuit through ground resistance R9, AC signal is converted to direct current signal and is compared Compared with diode D1 diodes D2 shields, and hysteresis comparator, this circuit is protected to have spy that is simple in structure, being skillfully constructed Point, effectively detects whether monitoring signals exception occur, improves the stability of circuit.

When the utility model is specifically used, the control circuit receive comparison circuit output high level signal when, Triode Q3 conductings, gate pole trigger signal, triode are provided while providing bias for the base stage of triode Q4 for thyristor Q5 Q4 is connected, and forward conduction voltage is provided for thyristor Q5, thyristor Q5 conductings, sender unit E1 transmission abnormal alarm signals to Terminal is monitored, when comparison circuit exports low level signal, triode Q3 shutdowns, triode Q4 is turned off, and thyristor Q5 dead electricity is disconnected It opening, sender unit E1 is stopped, wherein, it is inclined that power supply+12V through resistance R10 is triode Q3, triode Q4 provides collector Pressure, then forward conduction voltage is provided to thyristor Q5 when triode Q4 is connected through triode Q4, triode Q3 plays on-off action, The break-make of control circuit is controlled, triode Q4 plays on-off action, the shutdown after the Q5 conductings of control thyristor, the signal processing electricity The signal that road inputs a signal into end input is filtered through the filter circuit of resistance R1, resistance R2 and capacitance C1, capacitance C2, capacitance C3 compositions Comparison circuit is inputted after triode Q2, triode Q1 amplify signal again after wave, wherein, resistance R1 and capacitance C1, capacitance C2 It forms low-pass filter circuit and low-pass filtering is carried out to signal, capacitance C3 and resistance R2 form high-pass filtering circuit, carry out high pass filter Wave has the characteristics that fast response time, power supply+12V input triode Q1 and three poles together through resistance R4 and filtered signal Pipe Q2 collectors and base stage make AC signal become direct current signal, then are amplified through triode Q1 and triode Q2, capacitance C4 It is played a filtering role with capacitance C5, improves the interference free performance of circuit, the comparison circuit utilizes operational amplifier A R1 and resistance The signal and signal source V1 that the hysteresis comparator that R6, resistance R7, resistance R5, resistance R8 are formed exports signal processing circuit generate Original signal be compared after, then be output to control circuit after the diode D1 and diode D2 amplitude limits that are concatenated, work as monitoring When abnormal signal, comparison circuit exports high level signal, and when monitoring signals are normal, comparison circuit exports low level signal, In, signal source V1 provides original signal, and power supply+12V accesses circuit through ground resistance R9, by AC signal be converted to direct current signal into Row compares, and diode D1 diodes D2 shields, and protects hysteresis comparator, this circuit have it is simple in structure, be skillfully constructed The characteristics of, effectively telecommunication signal is monitored, improves the interference free performance and accuracy of circuit.

The above is to combine specific implementation mode further detailed description of the utility model, and it cannot be said that originally Utility model specific implementation is limited only to this；For belonging to the utility model and for those skilled in the technology concerned, Under the premise of technical solutions of the utility model thinking, made by expand and operating method, data replacement, should all fall Within scope of protection of the utility model.

Claims (3)

1. a kind of telecommunication signal monitoring device, including signal processing circuit, comparison circuit and control circuit, it is characterised in that, institute State signal processing circuit input a signal into end input signal be filtered, input comparison circuit, the comparison after enhanced processing Output high level signal or low level signal input control electricity after the signal received is compared by circuit with original signal Road, the control circuit are connected when receiving the high level signal of comparison circuit output, and control sender unit E1 sends different Normal alarm signal is to monitoring terminal;

The control circuit includes triode Q3, the current collection of one end and triode Q4 of the collector connecting resistance R10 of triode Q3 Pole, the gate pole of one end of the emitter connecting resistance R11 of triode Q3 and the base stage of triode Q4, thyristor Q5, resistance R10's is another One termination power+12V, the emitter of triode Q4 meet the anode of thyristor Q5, the other end ground connection of resistance R11, thyristor Q5 Cathode meet sender unit E1.

2. a kind of telecommunication signal monitoring device as described in claim 1, it is characterised in that, the signal processing circuit includes resistance One end of termination a signal input part and capacitance C1, capacitance C3 of R1, resistance R1, the one of another termination capacitor C2 of resistance R1 The other end at end, one end of resistance R2 and capacitance C3, the other end of capacitance C1 and the other end ground connection of capacitance C2, resistance R2's is another One end be grounded, another terminating resistor R4 of capacitance C3, the collector of one end of resistance R3 and triode Q2, triode Q2 base Pole, the collector of another termination triode Q1 of another termination power+12V of resistance R4, resistance R3, the base stage of triode Q2 connect One end of capacitance C4, the emitter of triode Q2 connect one end of the other end of capacitance C4 and the base stage of triode Q1, capacitance C5, and three The emitter of pole pipe Q1 connects the other end of capacitance C5.

3. a kind of telecommunication signal monitoring device as described in claim 1, it is characterised in that, the comparison circuit includes resistance R5, The emitter of a termination triode Q1 of resistance R5, the inverting input of another termination operational amplifier A R1 of resistance R5, operation The homophase input terminating resistor R6 of amplifier AR1, one end of resistance R8, one end of another terminating resistor R9 of resistance R8 and signal One end of source V1, the other end ground connection of another termination power+12V of resistance R9, signal source V1, the output of operational amplifier A R1 One end of terminating resistor R, the base of the other end of another terminating resistor R6 of resistance R7 and the cathode of diode D1, triode Q3 Pole, the anode of diode D1 connect the anode of diode D2, the minus earth of diode D2.