CN2346119Y - Intelligence anti-theft apparatus for telephone - Google Patents
Intelligence anti-theft apparatus for telephone Download PDFInfo
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- CN2346119Y CN2346119Y CN 98229418 CN98229418U CN2346119Y CN 2346119 Y CN2346119 Y CN 2346119Y CN 98229418 CN98229418 CN 98229418 CN 98229418 U CN98229418 U CN 98229418U CN 2346119 Y CN2346119 Y CN 2346119Y
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Abstract
The utility model relates to an intelligent anti-theft apparatus for telephones, which is provided with an external line interface, a station set interface and an electronic switching circuit. The utility model is characterized in that the utility model is provided with a ringing identification circuit, a line monitoring circuit, a signal tone identification circuit, a dual tone reception circuit, an impulse identification and off-on hook judgment circuit, a dual tone transmitting circuit, a microcomputer interface, an SCM control circuit, a power down accumulator and a power circuit. The telephone intelligent anti-theft apparatus not only effectively prevents other people from embezzling to use the telephone, but also carries out the circuitry monitoring, and records the normal use, usurpation and accomplishment of circuitry situation. The utility model is favorable to decrease and adequately solve the telephone traffic dispute, and perfect the electric communication service.
Description
The utility model relates to a kind of telephone anti-theft device.
Existing telephone anti-theft device is more, once disclosing a kind of phone for No. 93245322.8 as Chinese utility model prevents usurping, anti-eavesdrop, anti-not hand-up device, this device is by outer line interface, the phone interface, the feeder signals testing circuit, this machine off-hook detection circuit, switching circuit, interference signal source is formed, though this kind device can solve unit and be dialed special number problem by free call on sb. else's expense through illegal means or unit, but can't provide indoor phone, outdoor outside line, this machine user mode, Telecom Facilities such as exchange room operational circumstances and business operation improve monitoring record, the protection of outside line broken string back to the free call on sb. else's expense through illegal means situation can not be provided, its function imperfection, thereby the defective of existing.
The purpose of this utility model provides and a kind ofly can limit indoor phone, monitoring outside line situation, simultaneously the normal operating position of this machine, the illegal operating position of outside line are done to improve protection and record, and can be realized a kind of telephony intelligence alarm of data encryption, on-line monitoring.
Telephony intelligence alarm of the present utility model is outside having line interface, phone interface and electronic switching circuit, and receiving circuit, pulse recognition and dislodging machine decision circuitry, double-tone take place frequently and send circuit, microcomputer interface, single chip machine controlling circuit, power down memory and power circuit frequently also to have ringing-current identification circuit, path monitoring circuit, signal tone identification circuit, double-tone especially.Wherein, the signal input part of ringing-current identification circuit, the signal input part of path monitoring circuit, the signal input part of signal tone identification circuit, double-tone is the signal input part of receiving circuit frequently, the signal input part of pulse recognition and dislodging machine decision circuitry is with join the signal output part of ringing-current identification circuit with outer line interface, the signal output part of path monitoring circuit, the signal output part of signal tone identification circuit, double-tone is the signal output part of receiving circuit frequently, the signal output part of pulse recognition and dislodging machine decision circuitry joins with the line signal input of single chip machine controlling circuit respectively; The take place frequently signal input part that send circuit and the code signal transmitting terminal of single chip machine controlling circuit of double-tone joins, and the double-tone signal output part that send circuit that takes place frequently joins with outer line interface; Electronic switching circuit the outside line interface end of phone interface and outside between the line interface, the control signal output ends of single chip machine controlling circuit connects the control end of electronic switching circuit; The storage signal output of single chip machine controlling circuit and the signal input part of power down memory join, and the signal output part of power down memory connects the storage signal input of single chip machine controlling circuit; The power end of single chip machine controlling circuit and the output of power circuit join; The data output end of single chip machine controlling circuit and request signal input termination microcomputer interface.This Device for anti-fraudulent use telephone line is a support with the switch of telecommunication bureau, utilizes the relevant special clothes function of switch system to carry out work.This telephony intelligence alarm can by the microcomputer management system login, and write password by the telecommunication department unified management.When the user uses this alarm, the subscribers feeder of outer line interface and telecommunication system can be joined, the telephone set of phone interface with oneself joined.After this alarm inserts subscribers feeder, login the password of this alarm from trend telecommunication bureau switch.Outwards cry when dialing the user, switch identification normal users off-hook is also discerned the associated cryptographic rear dial feature is provided.After the subscriber dialing, alarm writes down institute automatically and dials the number and store.If not method user strides across alarm and calls, then can't send password, circuit is lock-out state, and alarm will write down illegal operating position.But alarm is the monitor user ' circuit at ordinary times, if line fed is interrupted, alarm will write down power-off signal.When user and the dispute of telecommunication department generation traffic, the microcomputer interface of alarm can be linked to each other with the microcomputer management system of telecommunication department, read user's dialing numbers and subscribers feeder monitoring record in the alarm, and verify with switch ticket number.In the utility model, for the electric energy loss that reduces alarm self with prolong components and parts useful life, the power control signal output can also be set respectively in ringing-current identification circuit, path monitoring circuit and single chip machine controlling circuit, and allow each power control signal output join with the control end of power circuit respectively, thereby realize start-up control to power circuit.Certainly, if do not consider factor such as saves energy, above-mentioned power supply control structure also can be set, and make power circuit in running order all the time.
Telephony intelligence alarm of the present utility model is compared with existing same phones alarm, can effectively prevent other people free call on somebody else's expense through illegal means, can monitor circuit again, can also be to normal use, illegally use and the circuit situation is implemented record, help reducing and properly settling the traffic dispute, improve telecommunications service.
Content of the present utility model further illustrates with the following Examples, but content of the present utility model is not limited only to content related among the embodiment.
Fig. 1 is the circuit block diagram of telephony intelligence alarm among the embodiment.
Fig. 2～3rd, circuit diagram.
As shown in Figure 1, the telephony intelligence alarm in the present embodiment has outside line interface 1, phone interface 2, electronic switching circuit 3, ringing-current identification circuit 4, path monitoring circuit 5, signal tone identification circuit 6, double-tone frequency receiving circuit 7, pulse recognition and dislodging machine decision circuitry 8, double-tone takes place frequently and send circuit 9, microcomputer interface 10, single chip machine controlling circuit 11, power down memory 12 and power circuit 13.Wherein, the signal input part of ringing-current identification circuit 4, the signal input part of path monitoring circuit 5, the signal input part of signal tone identification circuit 6, double-tone is the signal input part of receiving circuit 7 frequently, the signal input part of pulse recognition and dislodging machine decision circuitry 8 is with joining the signal output part of ringing-current identification circuit 4 with outer line interface 1, the signal output part of path monitoring circuit 5, the signal output part of signal tone identification circuit 6, double-tone is the signal output part of receiving circuit 7 frequently, the signal output part of pulse recognition and dislodging machine decision circuitry 8 joins with the line signal input of single chip machine controlling circuit 11 respectively.The take place frequently signal input part that send circuit 9 and the code signal transmitting terminal of single chip machine controlling circuit 11 of double-tone joins, and the double-tone signal output part that send circuit 9 that takes place frequently joins with outer line interface 1.Electronic switching circuit 3 the outside line interface end of phone interface 2 and outside between the line interface 1, the control signal output ends of single chip machine controlling circuit 11 connects the control end of electronic switching circuit 3.The storage signal output of single chip machine controlling circuit 11 and the signal input part of power down memory 12 join, and the signal output part of power down memory 12 connects the storage signal input of single chip machine controlling circuit 11.The output of the power end of single chip machine controlling circuit 11 and power circuit 13 joins.The data output end of single chip machine controlling circuit 11 and request signal input termination microcomputer interface 10.In the present embodiment, ringing-current identification circuit 4, path monitoring circuit 5 and single chip machine controlling circuit 11 also have the power control signal output respectively, and described each power control signal output joins with the control end of power circuit 13 respectively.
Shown in Fig. 2,3, in the present embodiment, above-mentioned outer line interface 1 is 1,2 pin of interface PW; Phone interface 2 is 3,4 pin of interface PW; Electronic switching circuit 3 is made of resistance R 41, R35, R18, photoelectrical coupler 03 and triode N4, N10; Ringing-current identification circuit 4 is made of resistance R 15, R40, capacitor C 20, diode D3, D4, D5, photoelectrical coupler O4 and triode N5, resistance R 3, R4, capacitor C 18; Path monitoring circuit 5 is made of rectification silicon bridge B1, resistance R 1, R2, R10, R11, voltage-stabiliser tube Z1, triode N7, N8 and diode D1, triode N9, resistance R 36, R37; Signal tone identification circuit 6 is made of source of sound receiving integrate circuit U5 and capacitor C 13, E3, E4, potentiometer RT and resistance R 33; Double-tone receiving circuit 7 frequently is made of dual-tone multifrequency receiving integrate circuit U3, resistance R 25, R26, R27, R20, capacitor C 11, C12, C1, C2, C3 and crystal oscillator J2; Pulse recognition and dislodging machine decision circuitry 8 are made of photoelectrical coupler O2, resistance R 16 and rectification silicon bridge B2; Double-tone takes place frequently and send circuit 9 to be made of dual-tone multifrequency transmission integrated circuit U4 and peripheral cell C4; Microcomputer interface 10 is interface PC; Single chip machine controlling circuit 11 constitutes by 89C2051 single-chip microcomputer U1 and as diode D6, electric capacity E2, C16, C17, resistance R 5, R19 and the crystal oscillator J3 of its peripheral circuit; Power down memory 12 is 24C64 type memory U2; Power circuit 13 is by the formations such as inverter U6E, U6F among battery B3, triode N11, resistance R 6 and the hex inverter U6 (74HC14).
During alarm in using present embodiment, the subscribers feeder of outer line interface and telecommunication system can be joined, phone interface and telephone set are joined.After this alarm inserts subscribers feeder, promptly login the password of this alarm from trend telecommunication bureau switch.When the no user off-hook, the base stage of the triode N7 in the path monitoring circuit is a high level, the N7 conducting, and the base stage of triode N8 is a low level, and N8 ends, and then the base stage of triode N11 is high level also, and N11 ends, and single chip machine controlling circuit does not have electricity, does not work.When user's off-hook, line voltage distribution descends, thereby triode N7 ends, the N8 conducting, and the base stage of N11 is a low level, starts battery single chip machine controlling circuit is powered, single-chip microcomputer U1 starts working.If the user normally uses, the corresponding low level that becomes of collector electrode of photoelectrical coupler O2 in pulse recognition and the dislodging machine decision circuitry then, single-chip microcomputer U1 promptly sends control signal to the electronic switching circuit of being made up of photoelectrical coupler O3 etc., allow electronic switching circuit moment disconnect being communicated with between phone interface and the outer line interface, simultaneously single-chip microcomputer U1 reads in password by power down memory U2, and takes place frequently via the double-tone of compositions such as dual-tone multifrequency transmitter U4 and to send circuit to send password to telecommunication bureau's switch.When telecommunication bureau's switch is received password and confirmation, then open subscriber's line, this moment, electronic switching circuit also recovered being communicated with between phone interface and the outer line interface, and substation can be called arbitrarily.In dialing and conversation, single-chip microcomputer U1 will control the double-tone is made up of double voice multi-frequency receiver U3 etc. receiving circuit and worked by pulse recognition and dislodging machine circuit that photoelectrical coupler O2 etc. forms frequently, and the reception user dials the number.After the dialing, start working by the signal tone identification circuit that source of sound receiver U5 etc. forms, single-chip microcomputer U1 judges institute radio reception source, if normally put through conversation, then this machine is dialled the number and be recorded among the memory U2, after the talk-through on-hook, this air time is recorded among the memory U2, finish ticket and generate.After on-hook, line voltage distribution is raised to 48V, triode N7 conducting, N8 ends, and N11 ends, provide outside signal by the single chip machine controlling circuit power supply, triode N1, resistance R 6 and inverter U6E, U6F in the power circuit forms the power supply holding circuit at this moment, keeps the work of single-chip microcomputer U1, off-hook dialing once more in 10 seconds, then start double-tone after 10 seconds and take place frequently and send circuit and pulse recognition and dislodging machine circuit, finish the outside line password and lock.When the on-hook of this machine, when the outside line ringing-current is sent into, start working power by the ringing current power source start-up circuit of forming by triode N5, resistance R 3, R4 and capacitor C 18 in the ringing-current identification circuit, send by the detected ringing signal of ringing-current identification circuit to single-chip microcomputer U1 by the collector electrode of photoelectrical coupler O4 simultaneously, after the single-chip microcomputer identification, then no longer do the unlock password action when this machine off-hook, the user can directly converse.In the present embodiment, when parallel operation or the normal off-hook of this machine appearred in outside line, the triode N7 in the path monitoring circuit was ended by the conducting change, and N8 provides the path monitoring signal by by becoming conducting.When outside line was broken, triode N9 provided the disconnection monitoring signal by by becoming conducting, control single chip computer work, and correctly write down various situations.
Claims (2)
1, a kind of telephony intelligence alarm, has outer line interface, phone interface and electronic switching circuit, it is characterized in that having the ringing-current identification circuit, the path monitoring circuit, the signal tone identification circuit, double-tone is receiving circuit frequently, pulse recognition and dislodging machine decision circuitry, double-tone takes place frequently and send circuit, microcomputer interface, single chip machine controlling circuit, power down memory and power circuit, the signal input part of described ringing-current identification circuit, the signal input part of path monitoring circuit, the signal input part of signal tone identification circuit, double-tone is the signal input part of receiving circuit frequently, the signal input part of pulse recognition and dislodging machine decision circuitry is with joining with outer line interface, the signal output part of described ringing-current identification circuit, the signal output part of path monitoring circuit, the signal output part of signal tone identification circuit, double-tone is the signal output part of receiving circuit frequently, the signal output part of pulse recognition and dislodging machine decision circuitry joins with the line signal input of single chip machine controlling circuit respectively, the take place frequently signal input part that send circuit and the code signal transmitting terminal of single chip machine controlling circuit of described double-tone joins, the take place frequently signal output part that send circuit of double-tone joins with outer line interface, described electronic switching circuit the outside line interface end of phone interface and outside between the line interface, the control signal output ends of single chip machine controlling circuit connects the control end of electronic switching circuit, the storage signal output of described single chip machine controlling circuit and the signal input part of power down memory join, the signal output part of power down memory connects the storage signal input of single chip machine controlling circuit, the power end of single chip machine controlling circuit and the output of power circuit join, the data output end of single chip machine controlling circuit and request signal input termination microcomputer interface.
2, alarm as claimed in claim 1, it is characterized in that described ringing-current identification circuit, path monitoring circuit and single chip machine controlling circuit have the power control signal output respectively, described each power control signal output joins with the control end of power circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229418 CN2346119Y (en) | 1998-09-01 | 1998-09-01 | Intelligence anti-theft apparatus for telephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229418 CN2346119Y (en) | 1998-09-01 | 1998-09-01 | Intelligence anti-theft apparatus for telephone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2346119Y true CN2346119Y (en) | 1999-10-27 |
Family
ID=33979317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98229418 Expired - Fee Related CN2346119Y (en) | 1998-09-01 | 1998-09-01 | Intelligence anti-theft apparatus for telephone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2346119Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110519467A (en) * | 2019-09-02 | 2019-11-29 | 佛山科学技术学院 | A kind of telephone anti-theft system |
-
1998
- 1998-09-01 CN CN 98229418 patent/CN2346119Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110519467A (en) * | 2019-09-02 | 2019-11-29 | 佛山科学技术学院 | A kind of telephone anti-theft system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |