CN2917105Y - Dual-audio reference time transmission server - Google Patents
Dual-audio reference time transmission server Download PDFInfo
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- CN2917105Y CN2917105Y CN 200620079192 CN200620079192U CN2917105Y CN 2917105 Y CN2917105 Y CN 2917105Y CN 200620079192 CN200620079192 CN 200620079192 CN 200620079192 U CN200620079192 U CN 200620079192U CN 2917105 Y CN2917105 Y CN 2917105Y
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Abstract
A two-tone standard time transmission server is provided, which comprises an one-chip computer system to control the overall server, a signal processing circuit of the one-chip computer system connected with the output terminal of the server, a clock circuit, a two-tone communication circuit and a ring detecting circuit connected with the one-chip computer system, an amplifying circuit connected with the two-tone communication circuit and a hang-on/up circuit connected with the computer system. The utility model adopts two-tone signals of the public telephone network, and utilizes 12 keys, such as the star symbol, a symbol like the Chinese character ''jing'', and other ten number keys or their combinations to dial telephone numbers, thus compiling ASCII code character information, enabling remote controllers to effectively control and transmit standard time and overcoming defects of telephone time. The utility model has advantages of rational design, simple structure, small size, easy operation, high reliability and lower production cost, and can provide standard time for scientific research, seismic network, hydrological monitoring, power supply, communication, traffic control and other industries.
Description
Technical field
The utility model belongs to electronic measuring technology field, be specifically related to the double-tone frequency marking punctual between delivery server.
Background technology
Along with the development of computer technology and telecommunications industry, more and more common by the telecommunication that telephone wire carries out.People adopt modulator-demodulator to communicate usually, but a kind of double-tone communication mode frequently can be considered in little in amount of communication data, not high to required communication rate application scenario.Standard as push-button telephone is worked out and recommended to double-audio signal by CCITT, be widely used in dialing at present.Double-audio signal is formed by two kinds of combination of frequencies, and each dtmf signal is made up of a low frequency signal and a high-frequency signal, can produce 16 kinds of signals altogether, represents 0～9 respectively, *, # etc.Advantages such as antijamming capability is strong because double-audio signal has, long transmission distance, data are accurate, thereby can be widely used in technical fields such as communication, remote control.Double-audio signal can be realized the remote microcomputer communication of dual bus, to finish the transmission of control or data.Adopting DTMF Technology is to realize the software and hardware key technology of telecommunication, and its circuit has simple, good reliability, the characteristics that production cost is low of realizing.Cooperate with related software and can realize that also bi-directional call communicates by letter, correct identification conversation with function such as communicate by letter, applicable to multiple telecommunication occasion, have application value preferably.
At present, the telephone time service system is to be a kind of standard time transmission technical scheme of carrier with the public telephone network, adopts modulator-demodulator to combine with single-chip microcomputer, realizes the transmission of standard time information, and synchronization accuracy is better than 5 milliseconds.Major advantage is that the information of control can be very complicated and abundant.Major defect is must be at master station and each built-in dedicated modem of user, and expense is higher, and communication once needs 40 seconds, the waste line resource.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the shortcoming of above-mentioned telephone time service system, provide a kind of reasonable in design, simple in structure, volume is little, simple, convenient double-tone frequency marking reliable, that production cost is low punctual between delivery server.
Solving the problems of the technologies described above the technical scheme that is adopted is that it comprises: be used for microcontroller system that complete machine is controlled; Signal processing circuit, the output order sheet computer system of this circuit; Clock circuit, this circuit is connected with microcontroller system; Double-tone is telecommunication circuit frequently, and this circuit is connected with microcontroller system; Amplifying circuit, this circuit is connected with double-tone frequency telecommunication circuit; It comprises plucks/the on-hook circuit, the input order sheet computer system of this circuit; It also comprises ring detecting circuit, and this circuit is connected with microcontroller system.
The utility model adopts the online double-audio signal of public telephone, with *, # and 10 numeric keys, totally ten two keys or its combination, doing dialing uses, the ASCII character character information is weaved in combination, realized long-range Be Controlled side is controlled and the transmission of standard time effectively, overcome the shortcoming of telephone time service.The utlity model has reasonable in design, simple in structure, volume is little, simple, convenient reliable, advantage such as production cost is low, can satisfy medium accuracy time user's demand, can be industries such as scientific research, seismic network, hydrologic monitoring, electric power, communication, traffic administration the standard time is provided.
Description of drawings
Fig. 1 is an electrical principle block diagram of the present utility model.
Fig. 2 is the electronic circuit schematic diagram of an embodiment of the utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described, but the utility model is not limited to these embodiment.
Fig. 1 is an electrical principle block diagram of the present utility model, referring to Fig. 1.In Fig. 1, the utility model be by signal processing circuit, clock circuit, microcontroller system, double-tone frequently telecommunication circuit, amplifying circuit, ring detecting circuit, pluck/the on-hook circuit connects and composes.The output order sheet computer system of signal processing circuit, clock circuit is connected with microcontroller system, microcontroller system is connected with ring detecting circuit with double-tone frequency telecommunication circuit, double-tone telecommunication circuit frequently is connected with amplifying circuit, pluck/the input order sheet computer system of on-hook circuit, pluck/the on-hook circuit is connected with amplifying circuit.
In Fig. 2, the signal processing circuit of present embodiment is connected and composed by integrated circuit U4, integrated circuit U5, integrated circuit U6, C9～C12, and the model of integrated circuit U4 is that the model of MAX232, integrated circuit U5 is that the model of GPS reseverl, integrated circuit U6 is BPC receiverl.10 pin of integrated circuit U4 and 9 pin order sheet computer systems, 8 pin meet the D of integrated circuit U5 and integrated circuit U6
0Two ends, 4 pin and 5 pin that end, 1 pin and 3 pin meet C10 respectively connect the two ends of C12 respectively, an end, the end of negative supply termination C11,6 pin that the positive supply termination meets C9 connect 5V positive source, 15 pin ground connection, another termination 5V positive source of C9, the other end ground connection of C11, the power supply termination 5V positive source of integrated circuit U5 and integrated circuit U6, hold ground connection.
The clock circuit of present embodiment is connected and composed by integrated circuit U3, diode D1, R2, C4～C7, socket JI, crystal oscillator Y2, and the model of integrated circuit U3 is DS1302.The 100KHz frequency signal is from socket JI input, and 1 pin of socket JI connects the end of C4～C6 and connects the anodal of diode D1 and connect 5V positive source, 2 pin ground connection, the minus earth of the other end of C4～C6 and diode D1 by R2.Two ends, 5～7 pin order sheet computer systems, 8 pin that an end, 2 pin and 3 pin that 1 pin of integrated circuit U3 meets 5V positive source and C7 meet crystal oscillator Y2 respectively connect 3V power supply, 4 pin ground connection, the other end ground connection of C7.
The microcontroller system of present embodiment is connected and composed by integrated circuit U1, R1, R23～R30, C1～C3, C8, crystal oscillator Y1, socket J3, and the model of integrated circuit U3 is AT89C32.21 pin of integrated circuit U3 connect 7 pin of integrated circuit U2,22 pin connect 6 pin of integrated circuit U3,23 pin connect 5 pin of integrated circuit U3,32～39 pin connect 14～7 pin of 5V positive source and socket J3 respectively by R33～R26,24 pin connect and pluck/the on-hook circuit, 6 pin of 25 pin combination hub J3,26 pin and 28 pin connect double-tone communicating circuit frequently, 4 pin of 27 pin combination hub J3 and double-tone be communicating circuit frequently, 9 pin connect the end of C1 and pass through R1 ground connection, 10 pin and 11 pin connect the serial output circuit, 15 pin connect double-tone communicating circuit frequently, 18 and 19 pin of integrated circuit U1 meet crystal oscillator Y1, C2, the oscillating circuit that C3 connects, another termination 5V positive source of C1.Another termination 5V positive source of R23～R30.7～10 pin of socket J3 connect double-tone, and frequently communicating circuit, 2 pin connect the end of C8 and 5V positive source, 1 pin and 3 pin and 15 pin ground connection, 16 pin connect the 5V positive source, the other end ground connection of C8, and socket J3 connects display.
The double-tone of present embodiment communicating circuit is is frequently connected and composed by integrated circuit U2, R3～R7, R22, C13～C16, crystal oscillator Y3, and the model of integrated circuit U2 is MT8888.9 pin of integrated circuit U2 connect 28 pin of integrated circuit U1,11 pin connect 27 pin of integrated circuit U1,12 pin connect 26 pin of integrated circuit U1,13 pin connect 15 pin of integrated circuit U1 and connect the 5V positive source by R3,7～10 pin of 14～17 pin combination hub J3,18 pin connect the end of C14 by R22,19 pin connect the end of C14,20 pin connect the other end of the end of C13 and C14 and connect the 5V positive source, 10 pin connect an end and the amplifying circuit of 8 pin and C16 by R7,7 pin connect the end of crystal oscillator Y3,6 pin connect the other end of crystal oscillator Y3 and pass through R6 ground connection, 5 pin ground connection, 4 pin connect 1 pin, 3 pin connect 2 pin by R4 and connect the end of C15 by R5, the other end ground connection of C13 and C16, another termination of C15 is plucked/the on-hook circuit.
The amplifying circuit of present embodiment is connected and composed by triode Q1, R9～R12.The base stage of triode Q1 connects 8 pin of integrated circuit U2 by R10 and connects the 5V positive source and connect 5V positive source, emitter by R11 ground connection, collector electrode by R9 and connects and pluck/on-hook circuit and by R12 ground connection.
The plucking of present embodiment/on-hook circuit is connected and composed by triode Q2, triode Q3, diode D2～diode D7, R8, R13～R16, socket J2.The base stage of triode Q2 connects the anodal of 24 pin of integrated circuit U1 and diode D2 and connects the 5V positive source by R8 by R13, the collector electrode of collector connecting transistor Q3 also connects the base stage of triode Q3 and the positive pole of diode D3 by R14, grounded emitter, the minus earth of diode D2, the emitter of triode Q3 by R15 connect the negative pole of diode D3 and double-tone frequently the C15 of communicating circuit the other end and ring detecting circuit and connect the negative pole of diode D4 and the negative pole of diode D5, the positive pole of diode D6 and diode D7 is by R12 ground connection, 1 pin of the termination socket J2 of the negative pole of the positive pole of diode D4 and diode D6 and R16,2 pin of the other end combination hub J2 of the negative pole of the positive pole of diode D5 and diode D7 and R16, the socket J4 line of answering the call.
The ring detecting circuit of present embodiment is connected and composed by integrated circuit U7, integrated circuit U8, R18～R21, and the model of integrated circuit U7 is that the model of 74HC14, integrated circuit U8 is LM339.In-phase input end 5 pin of integrated circuit U8 connect by R19 and pluck/end of the R15 of on-hook circuit and connect the 5V positive source and connect the end of 5V positive source and R21, the other end that output 2 pin meet R21 and input 1 pin of integrated circuit U7 by R18 by R17 ground connection, 12 pin ground connection, 3 pin by R20 ground connection, inverting input 4 pin, and output 2 pin of integrated circuit U7 connect 13 pin of integrated circuit U1.
Operation principle of the present utility model is as follows:
D0 mouth and the D0 mouth of integrated circuit U6 8 pin of sending into integrated circuit U4 of the time reference signal that is produced by punctual laboratory, national time service center, 6PS or low frequency signal receiving element by integrated circuit U5 carry out conversion of signals, obtain needed time encoding form.Sent into 10 pin of integrated circuit U1 the resulting time in real time by 9 pin of integrated circuit U4, Single Chip Microcomputer (SCM) system just can obtain the real-time standard time, and 6 pin of standard time by integrated circuit U3 are write integrated circuit U3, there be not the standard time during value, integrated circuit U3 sends the time of controlling oneself into Single Chip Microcomputer (SCM) system in real time, and this part is operated in the utility model initialization procedure and finishes.After initialization was finished, the utility model was in port and connects listening state, waits for user applies.In case having detected the user, telephone bell polarization circuit connects by the dual tone phone application, promptly carry out importing from the in-phase input end of integrated circuit U8 after the rectification through diode D4～diode D7 again by socket J2, input voltage is compared, and give Single Chip Microcomputer (SCM) system after by integrated circuit U7 shaping with bell signal, ring begins, after finishing the ringing number of setting, the Single Chip Microcomputer (SCM) system response, 24 human hair combing wastes by integrated circuit U1 send off hook signal, and by pluck/the on-hook circuit after by socket J2 notice receiver off-hook, 26 pin of integrated circuit U1 are delivered to time reference signal on 12 pin of integrated circuit U2 then, integrated circuit U2 sends into amplifying circuit to the standard time by 8 pin and amplifies, and will the standard time pass to receiver by socket J2 interface again.After transmission is finished, the Single Chip Microcomputer (SCM) system automatic hand-up.
Claims (1)
1, a kind of double-tone frequency marking punctual between delivery server, it is characterized in that it comprises:
Be used for microcontroller system that complete machine is controlled;
Signal processing circuit, the output order sheet computer system of this circuit;
Clock circuit, this circuit is connected with microcontroller system;
Double-tone is telecommunication circuit frequently, and this circuit is connected with microcontroller system;
Amplifying circuit, this circuit is connected with double-tone frequency telecommunication circuit;
It comprises plucks/the on-hook circuit, the input order sheet computer system of this circuit;
It also comprises ring detecting circuit, and this circuit is connected with microcontroller system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620079192 CN2917105Y (en) | 2006-06-19 | 2006-06-19 | Dual-audio reference time transmission server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620079192 CN2917105Y (en) | 2006-06-19 | 2006-06-19 | Dual-audio reference time transmission server |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2917105Y true CN2917105Y (en) | 2007-06-27 |
Family
ID=38188019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620079192 Expired - Fee Related CN2917105Y (en) | 2006-06-19 | 2006-06-19 | Dual-audio reference time transmission server |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2917105Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004440A (en) * | 2010-12-09 | 2011-04-06 | 保定维特瑞交通设施工程有限责任公司 | Time synchronization control device of traffic management system |
-
2006
- 2006-06-19 CN CN 200620079192 patent/CN2917105Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004440A (en) * | 2010-12-09 | 2011-04-06 | 保定维特瑞交通设施工程有限责任公司 | Time synchronization control device of traffic management system |
| CN102004440B (en) * | 2010-12-09 | 2012-05-30 | 保定维特瑞交通设施工程有限责任公司 | Time synchronization control device of traffic management 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 |