CN2267584Y

CN2267584Y - Telephone with magnetic card or IC card lock

Info

Publication number: CN2267584Y
Application number: CN 96208938
Authority: CN
Inventors: 林清辉; 梁绪伟
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-04-19
Filing date: 1996-04-19
Publication date: 1997-11-12
Anticipated expiration: 2006-04-19

Abstract

The utility model relates to a telephone with a magnetic card or IC card lock. The utility model is characterized in that a controllable switching circuit K is arranged between a dialing circuit and a dialing keyboard, wherein, the controllable switching circuit K is composed of a CPU and a magnetic card or IC card reader; the data output terminals of the magnetic card reader are connected with the data input terminals of the CPU, and the data output terminals of the CPU are connected with the data input terminals of the dialing circuit; the data output terminals of the dialing keyboard are connected with the other group of data input terminals of the CPU; the control terminal of the CPU is connected with the control terminal of the magnetic card reader. The utility model has the advantages that the telephone with a magnetic card or IC card lock can effectively limit unauthorized people to use the telephone to dial long distance telephones, voice telephones, etc.; accidental loss is avoided; the operation is very convenient; the utility model is an ideal and secure communication tool for enterprise and communities.

Description

Magnetic card or integrated circuit kayser telephone set

The utility model belongs to communication tool, does not have the careless telephone set that uses of authorized person but be specifically related to a kind of volitional check that is particularly suitable for each enterprise, public organization's use.

In commodity economy day by day flourishing today, information interchange is very important.Phone is a requisite important communication tool in people's daily life and the work.In many enterprises, public organization, owing to there is not attaching phone control management system, there is not the safe and reliable careless special property telephone set that uses of unrelated person that limits again, improper phone uses and increases, telephone charges is high, has had a strong impact on normal work and life.In order to address this problem, released multiple telephone set with lock on the market.Wherein, a kind of is the telephone set of the mechanical lock of band key, and this telephone set with lock all is that controlling with " 0 " key by the closure or openness of key is the dialing of beginning, reaches the purpose that long-distance call is made in restriction.This mechanical lock telephone set is released and is just found many problems soon: use inconvenience, and the key of this class telephone set is nearly all the same, can be general mutually, and so confidentiality is poor, restriction is little; Another is the electronic password lock telephone set.The electronic cipher circuit of this class telephone set normally is made up of NOR gate integrated circuit and discrete component, by the control transmitting ic, to reach the long-distance call communication of restriction (or control) with the beginning of " 0 " key, this phone uses and one side comparatively easily to be arranged aspect the long-distance call establishing password restrictions certainly, but needs input password unlocking, comparatively trouble earlier before being to use, in case forgotten password, can put to no little inconvenience, and when password by known to other people, the free call on sb. else's expense through illegal means phenomenon also often appears.At present, still do not solve the telephone set with lock of this contradiction in the society better.

The utility model purpose is the deficiency at above-mentioned existing telephone set with lock, provide a kind of and can the phone that management, control long-distance call and various user need limit (as 168, information service center etc.) be set oneself, can store the magnetic card or integrated circuit card (IC-card) the lock telephone set of charging again automatically according to user's needs.

The appearance structure of magnetic card of the present utility model or IC card lock telephone set and traditional telephone set is the same substantially, just is provided with swipe the card magnetic card (or IC-card) groove of usefulness of a confession on original electricity is lived engine housing; In the internal circuit of the utility model magnetic card or IC card lock telephone set, include ringing circuit, polar protective circuit, dial-up circuit, click circuit, speaking circuit disappear, it is characterized in that between dial-up circuit and dialing keyboard, being connected with, controllable switching circuit K that formed with CPU and magnetic card (or IC-card) reader, wherein, the data output end of magnetic card (or IC-card) reader and the data input pin of CPU join, and the data output end of CPU and the data input pin of dial-up circuit join; The data output end of dialing keyboard is connected with another group data input pin of CPU; The control end of CPU links to each other with the control end of magnetic card (or IC-card) reader.

In traditional telephone circuit structure, the data output end of dialing keyboard directly is connected with the data input pin of dial-up circuit, so traditional phone can directly be put through and converse; And in the utility model magnetic card or IC card lock telephone set, owing to be added with controllable switch circuit K, the number data of being transferred to will be transmitted to dial-up circuit by CPU, just can dial, thus the purpose of realization Be Controlled effect.

The utility model magnetic card or IC card lock telephone set because controllable switch circuit K does not relate to speaking circuit, so the circuit structure when outside line is squeezed into is the same with traditional ordinary telephone set circuit structure, can directly be finished the telephone relation process.When getting an outside line phone, (get),, judge whether the user is validated user by the data that magnetic card (or IC-card) reader of CPU control is read.As be the disabled user, CPU does not give dial-up circuit with the keyboard dialing data forwarding, and control circuit K will disconnect, and forbid the purpose that dials and converse thereby reach; When the user is validated user, the data of the subscriber card that CPU can read according to magnetic card reader, judge to confirm whether to exceed system level user, if be the limiter stage user, and the data that dialing keyboard is issued CPU are confined dial data, CPU can stop forwarding equally, forbids being limit the dial-out of number; When being defined as unrestricted level user, CPU gives dial-up circuit with the dialing keyboard data forwarding, and closed control switch circuit K finishes the process of normal dialing and conversation.

Therefore, the utility model magnetic card or IC card lock phone function limit the unauthorized personnel effectively and use telephone set to dial the phone that long-distance, audio communication etc. needs the type of restriction both at home and abroad, avoid accidental loss, and operation is very convenient again, is the highly desirable communication tool of safety again of each enterprise of a kind of society, group.

Below in conjunction with accompanying drawing magnetic card of the present utility model or IC card lock telephone set are described further:

Fig. 1 is the circuit diagram of existing tandem type telephone set.

Fig. 2 is the circuit diagram of existing parallel connection type telephone set.

Fig. 3 is the magnetic card or the IC card lock telephone set network schematic diagram of tandem type of the present utility model.

Fig. 4 is the magnetic card or the IC card lock telephone set network schematic diagram of parallel connection type of the present utility model.

Fig. 5 is the circuit diagram of the gate-controlled switch circuit K of the utility model magnetic card or IC card lock telephone set.

Fig. 6 is the circuit diagram of an embodiment of the utility model magnetic card or IC card lock telephone set.

Fig. 7 is the Control Software program schematic diagram of the utility model magnetic card or IC card lock telephone set.

Extremely shown in Figure 5 as Fig. 3, magnetic card of the present utility model or IC card lock telephone set, include ringing circuit, polar protective circuit, dial-up circuit, click circuit, speaking circuit disappear, between dial-up circuit and dialing keyboard, be connected with, controllable switching circuit K that formed with CPU and magnetic card (or IC-card) reader, wherein, the data output end of magnetic card (or IC-card) reader joins by the data input pin of data wire and CPU, and the data output end of CPU joins by the data input pin of data wire and dial-up circuit; The data output end of dialing keyboard is connected with another group data input pin of CPU by data wire; The control end of CPU links to each other by the control end of data wire with magnetic card (or IC-card) reader.

As shown in Figure 6, as an embodiment of the present utility model, adopt TA89C51 type cpu chip, monorail magnetic card reader commonly used, MT8880 type dial-up circuit chip, 4 * 4 traditional dialing keyboards, the RDT of magnetic card reader, RCI and CLS are connected the 26th pin of TA89C51 respectively, 25 pin and 24 pin, 1 of 4 * 4 dialing keyboards, 2,3 button left ends connect the 39th pin of TA89C51,4,5,6 button left ends connect the 38th pin of TA89C51,7,8,9 button left ends connect the 37th pin of TA89C51, #, 0,36 pin of ※ keyed jointing TA89C51,1,4,7, the right-hand member of ※ key connects the 35th pin of TA89C51,2,5,8, the right-hand member of 0 key connects the 34th pin of TA89C51,3,6,9, the right-hand member of # key connects the 33rd pin of TA89C51, and dialing sends the data terminal of chip MT8880, promptly the 14th, 15,16,17 4 pin respectively with 1 of TA89C51,2,3,4 four pin are connected, the 11st pin (RSI) of MT8880 and 12 pin (CP) and the 5th of TA89C51,6 pin link to each other.When getting an outside line phone, press the dialing keyboard button, CPU can receive the triggering key signals from the port between the 39th pin to 33 pin, and the data of swiping the card by the 26th pin magnetic card reader of CPU, and whether analysis and judgement is legal user.If the user is illegal user, CPU does not just send out data to MT8880, at this moment, bans use of; If be legal user, be about to button data and be given to MT8880, realize path, can the normal dialing conversation.

Claims

A kind of magnetic card or IC card lock telephone set, include ringing circuit, polar protective circuit, dial-up circuit, click circuit, speaking circuit disappear, it is characterized in that between dial-up circuit and dialing keyboard, being connected with, controllable switching circuit K that formed with CPU and magnetic card (or IC-card) reader, wherein, the data output end of magnetic card (or IC-card) reader and the data input pin of CPU join, and the data output end of CPU and the data input pin of dial-up circuit join; The data output end of dialing keyboard is connected with another group data input pin of CPU; The control end of CPU links to each other with the control end of magnetic card (or IC-card) reader.