CN2253548Y

CN2253548Y - Telephone detector

Info

Publication number: CN2253548Y
Application number: CN 96234623
Authority: CN
Inventors: 李农高
Original assignee: 李农高
Current assignee: Ling Shuhua
Priority date: 1996-04-17
Filing date: 1996-04-17
Publication date: 1997-04-30
Anticipated expiration: 2006-04-17

Abstract

The utility model relates to a telephone detector which is composed of a control circuit, a dialing circuit for conversation sending-receiving, a digital display circuit, a ringing source circuit and a detection instructing circuit, wherein, the output of the control circuit is respectively connected with the dialing circuit for conversation sending-receiving and the ringing source circuit; the outputs of the dialing circuit for conversation sending-receiving and the ringing source circuit are connected with the detection indicating circuit; the other output of the dialing circuit for conversation sending-receiving is connected with the digital display circuit. The utility model has the advantages of simple and reasonable structure, small size, stable performance and more functions, and is suitable for telephone producing enterprises as control equipment for product quality or telephone repairing enterprises to repair the telephone.

Description

The phone detector

The utility model relates to a kind of tester, and refering in particular to is a kind of phone detector of test telephone machine function.

Along with developing rapidly of telecommunications, the universal of telephone set grows with each passing day, the telephone testing instrument of domestic call machine manufacturer use at present is based on taiwan products, model commonly used has 1080,1016,1076 etc., but the general volume of these instruments is big, weight is big, price is high, be not easy to carry, can only be adapted to telephone set manufacturer and be used for doing on the production line quality control and quantitative analysis usefulness; At present domesticly be used for portable telephone set maintenance and yet there are no with detector, this brings very big inconvenience for telephone office's test desk and production maintenance department.

The purpose of this utility model be to overcome the deficiency of prior art and provide a kind of simple in structure, dependable performance, easy to operate, measuring ability is complete, the phone detector of AC/DC.

The utility model is to adopt following proposal to realize: it is by control circuit, send and talked about dial-up circuit, digital display circuit, ring source circuit, detect indicating circuit and form, the output of described control circuit is picked respectively and is talked about dial-up circuit and ring source circuit, send the output of being talked about dial-up circuit and ring source circuit to connect the detection indicating circuit, send another road output of being talked about dial-up circuit to connect the digital display circuit.

Concrete structure of the present utility model describes in detail below in conjunction with accompanying drawing:

Accompanying drawing 1 is the utility model electricity functional-block diagram;

Accompanying drawing

2,3 is the utility model electrical schematic diagram;

See accompanying

drawing

1,2,3, the utility model is by control circuit (1), send and talked about dial-up circuit (2), digital display circuit (3), ring source circuit (4), detecting indicating circuit (5) forms, the described output of sending the input connection control circuit (1) of being talked about dial-up circuit (2) and ring source circuit (4), and its output connects the input that detects indicating circuit (5) respectively, simultaneously, the input that send another road output of being talked about dial-up circuit (2) to connect digital display circuit (3), and control circuit (1) is by integrated package D ₃, N ₂, diode V ₁₂, V ₁₉, V ₂₆-V ₃₁, triode V ₂₅, resistance R ₈-R ₁₀, R ₂₃-R ₂₆, R ₄₅, relay K ₁, K ₃And contact, capacitor C ₅, C ₁₀, switch S ₂, S ₄, S ₃, S ₅Form, send and talked about dial-up circuit (2) by integrated package D ₂, N ₁, D ₄, D ₅, D ₆, transformer B ₂, resistance R ₅-R ₇, R ₁₇-R ₂₀, R ₂₇, R ₂₈, R ₃₀-R ₃₂, R ₃₅-R ₄₄, R ₄₇, R ₄₉, R ₅₀, capacitor C ₃, C ₄, C ₈, C ₁₁-C ₁₄, C ₁₇, C ₂₀-C ₂₃, C ₂₄, crystal oscillator TX, diode V ₃₂-V ₄₇, V ₂₂, triode V ₄₈, V ₄₉, V ₂₄, V ₆₂Form; Digital display circuit (3) is by integrated package D ₇-D ₁₇, resistance R ₁₅₁-R ₂₂₉, diode V ₁₄₉-V ₁₆₈, capacitor C ₁₉, diode V ₁₀₀Form, ring source circuit (4) is by resistance R ₁₁-R ₁₅, R ₂₂, R ₂₅, integrated package D ₁, circuit breaker K ₂, diode V ₁₄, V ₁₆, V ₁₇, triode V ₁₅, capacitor C ₆Form, detect indicating circuit (5) by diode V ₁₈-V ₂₁, V ₁₀, capacitor C ₇, resistance R ₁₆, R _{16 '}, R ₄, gauge outfit G ₁, joint L ₁, L ₂Form.

The integrated package model is in the utility model:

D ₁、D ₂、D ₄——MC14011BP?D ₃——MC14013BP

D ₅——MC14518BP D ₆——CN8870IP

D ₇——NC14017BP D ₈-D ₁₇——MC14543BP

N ₁——LM35B N ₂——LM317

N ₃——555

The utility model operation principle is sketched in following: the utility model is by switch S ₁Connect transformer B ₁, by transformer B _1-1, B _1-2, output the utility model working power and telephone set DC48V feedback stream power supply or by storage battery E, integrated package N ₃, transformer B ₃The inverter of forming provides the utility model working power and phone feedback stream power supply.It detects principle and is specified in down:

1, ring detects: touch-switch S ₄, integrated package D ₃Put high level, D ₃1 pin output low level make integrated package D ₁Starting of oscillation, thus make relay K ₂Do action in disconnected 2 seconds in logical 2 seconds, provide to be connected to joint L ₁, L ₂On telephone set 60V, 50HZ bell signal source is because integrated package D ₃1 pin low level, make relay K ₃Discharge, its contact connects the F point, makes resistance R ₁₆Incorporate gauge outfit G shunting into, gauge outfit G then illustrates the ringing telephone stations current value, realizes the ring measuring ability.

2, be subjected to words to detect touch-switch S ₂, integrated package D ₃8 pin put high level, D ₃13 pin also put high level, make integrated package D ₂Starting of oscillation is exported 400 all oscillator signals through triode V ₁₁, transformer B ₂Coupling is fed to telephone set, is talked about hand-free function in order to detect telephone set, at this moment, and by touching switch S ₅, triode V ₂₅Conducting, relay K ₁Must be electric, its contact K _1-1, K _1-2Put h respectively, the d point, gauge outfit G indicates D ₂400 all oscillator signal level values of output are in order to detect the receiver receiving speech quality; Function detection is talked about in realization.

3, send words to detect touch-switch S ₃, integrated package D ₃10 pin put high level, 13 pin are put low level, integrated package D ₂Failure of oscillation at this moment, is pinned switch S ₅, relay K ₁Must be electric, its contact K _1-1, K _1-2, put h, the d point, at this moment, microphone send words or send words to hands-free built-in microphone, and gauge outfit G indicates and send the words level intensity, realizes that phone send words to detect.

4, dialing detects, off-hook, the station ringer resistance R of flowing through ₂₈, diode V ₂₈Sampling makes integrated package D ₃1 pin put high level, make ringing circuit integrated package D ₁Failure of oscillation, relay K ₂Contact recovers normally off, and promptly contact is put b, the k point, and telephone set passes through relay K ₂B, 48V direct current feedback stream power supply is inserted in the k contact, enters dialing, gives orders or instructions, and the project detected state such as is talked about, at this moment, gauge outfit G indicates telephone set off-hook loop current value, integrated package N ₁By resistance R ₂₇, R ₂₈Sampling provides integrated package N to the telephone set loop current ₁The comparison power supply, make integrated package N ₁Control triode V ₆₂Conducting provides integrated package D ₄-D ₁₈Working power, at this moment, by electric shock phone dialing keyboard, phone pulse code or double-audio signal are through integrated package D ₅Or D ₆Shaping or decoding export integrated package D to ₇Counting, integrated package D ₇Output shows to promote blood circulation dashes to integrated package D ₈-D ₁₇Digital to show dialing, reach the purpose that detects the phone dial feature.

In sum, the utility model is simple and reasonable, and volume is little, stable performance, and function is many, is suitable for telephone set manufacturing enterprise and uses as control of product quality equipment or the dialogue machine maintenance of telephone set maintenance company.

Claims

1. phone detector, comprise control circuit (1), send and talked about dial-up circuit (2), digital display circuit (3), ring source circuit (4), detect indicating circuit (5), it is characterized in that sending the output of the input connection control circuit (1) of being talked about dial-up circuit (2) and ring source circuit (4), and its output connects the input that detects indicating circuit (5) respectively, simultaneously, the input that send another road output of being talked about dial-up circuit (2) to connect digital display circuit (3), and control circuit (1) is by integrated package D ₃, N ₂, diode V ₁₂, V ₁₉, V ₂₆-V ₃₁, triode V ₂₅, resistance R ₈-R ₁₀, R ₂₃-R ₂₆, R ₄₅, relay K ₁, K ₃And contact, capacitor C ₅, C ₁₀, switch S ₂, S ₄, S ₃, S ₅Form, send and talked about dial-up circuit (2) by integrated package D ₂, N ₁, D ₄, D ₅, D ₆, transformer B ₂, resistance R ₅-R ₇, R ₁₇-R ₂₀, R ₂₇, R ₂₈, R ₃₀-R ₃₂, R ₃₅-R ₄₄, R ₄₄, R ₄₉, R ₅₀, capacitor C ₃, C ₄, C ₈, C ₁₁-C ₁₄, C ₁₇, C ₂₀-C ₂₃, C ₂₄, crystal oscillator TX, diode V ₃₂-V ₄₇, V ₂₂, triode V ₄₈, V ₄₉, V ₂₄, V ₈₂Form; Digital display circuit (3) is by integrated package D ₇-D ₁₇, resistance R ₁₅₁-R ₂₂₉, diode V ₁₄₉-V ₁₆₈, capacitor C ₁₉, diode V ₁₀₀Form, ring source circuit (4) is by resistance R ₁₁-R ₁₅, R ₂₂, R ₂₅, integrated package D ₁, relay K ₂, diode V ₁₄, V ₁₆, V ₁₇, triode V ₁₅, capacitor C ₆Form, detect indicating circuit (5) by diode V ₁₈-V ₂₁, V ₁₀, capacitor C ₇, resistance R ₁₆, R ₁₆', R ₄, gauge outfit G ₁, joint L ₁, L ₂Form.