CN2591568Y - Full-automatic Long-wave timing frequency adjustment receiver standard frequency inputting automatic selector - Google Patents
Full-automatic Long-wave timing frequency adjustment receiver standard frequency inputting automatic selector Download PDFInfo
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- CN2591568Y CN2591568Y CN 02292512 CN02292512U CN2591568Y CN 2591568 Y CN2591568 Y CN 2591568Y CN 02292512 CN02292512 CN 02292512 CN 02292512 U CN02292512 U CN 02292512U CN 2591568 Y CN2591568 Y CN 2591568Y
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- shaping
- long wave
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Abstract
The utility model relates to a standard frequency inputting automatic selecting device for a full automatic long wave timing frequency adjustment receiver. The utility model comprises a Schmitt shaping circuit, the input terminal of which is connected with a frequency shaping circuit of a long wave receiver, two selective switch circuits, the input terminals of which are connected with the Schmitt shaping circuit, a shaping frequency selective output circuit, the input terminal of which is connected with the output terminals of two selective switch circuits, and the frequency shaping circuit of a long wave receiver, and the output terminal of the shaping frequency selective output circuit is connected with the frequency input terminal of the long wave receiver. The utility model is used behind the long wave receiver, a switch is not selected by manual operation, and frequency signals of different frequencies only need to be coupled in the long wave receiver, which can automatically judge and select optimum frequency matching so as to ensure that the device works normally. The utility model can be used for devices of the PO21 full automatic long wave timing frequency adjustment receiver, an MODEL 2100 long wave timing receiver of the American AUSTRON company, etc.
Description
Technical field
The utility model belongs to long wave navigation and Service of Timing field, is specifically related to full-automatic long wave standard time and frequency signal receiver standard frequency input automatic dialing unit.
Background technology
From the fifties to the seventies, the U.S. has set up the dozens of LORAN-C navigation chain of stations in the whole world, utilizes the method for clock carrying that all chain of stations time and frequency standards are calibrated with synchronously, realizes radio navigation and time service." just card " system of USSR (Union of Soviet Socialist Republics) then complete class is same as the LORAN-C system of the U.S..
It is the same that the BPL of China and " No. two, long river " system and U.S. LORAN-C system and USSR (Union of Soviet Socialist Republics) " are just blocked system ", is the large-scale radio navigation of a kind of remote high-precision, time dissemination system.It is frequency definite earlier or that measurement is imported that the frequency of the full-automatic long wave timing alignment receiver of this system is selected, and opens receiver again, extracts the computing machine plate then, selects to turn round sub-switch by manually stirring the frequency input, carries out the incoming frequency coupling.
Summary of the invention
Technical problem to be solved in the utility model and solve the technical scheme that its technical matters adopts and be: it comprises the Si Mite shaping circuit, the frequency shaping circuit of input end spreading wave receiver, it comprises a selected on-off circuit and another selected on-off circuit, the input termination Si Mite shaping circuit of a selected on-off circuit and another selected on-off circuit, it also comprises shaping frequency-selecting output circuit, the output terminal of selected on-off circuit of the input termination of this circuit and another selected on-off circuit and the frequency shaping circuit of long-wave receiver, the frequency input end of output terminal spreading wave receiver.
A selected on-off circuit of the present utility model is: 13 pin, 1 pin ground connection, 3 pin that 2 pin of integrated circuit U2A meet Si Mite shaping circuit integrated circuit U1 connect the end of R1 and the end that 5v positive source, 14 pin meet C1, the other end that 15 pin meet R1 and C1,2 pin and the negative pole of diode D1 and the end of R3 that 13 pin meet integrated circuit U3A, 1 pin of integrated circuit U3A connects the end, 3 pin of the other end of the positive pole of diode D1 and R3 and C3 by 2 pin of the integrated circuit U4 of R4 shaping frequency-selecting output circuit and the end of C5, the other end ground connection of C3 and C5.
Another selected on-off circuit of the present utility model is identical with a selected on-off circuit.
After the utility model is used for long-wave receiver, do not need the manually-operated selector switch, only the frequency signal of different frequency need be inserted long-wave receiver, it will judge, select automatically the optimum frequency coupling automatically, guarantee the equipment operate as normal.It can be used for full-automatic long wave standard time and frequency signal receiver of homemade P021 and the MODEL of U.S. AUSTRON company 2100 long wave timing receivers, and other needs the equipment of outside 1.5.10MHz standard frequency input.
Description of drawings
Fig. 1 is an electrical principle block scheme of the present utility model.
Fig. 2 is an electronic circuit schematic diagram of the present 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 scheme of the present utility model, referring to Fig. 1.In Fig. 1, the utility model is to be connected and composed by Si Mite shaping circuit, two selected on-off circuits, shaping frequency-selecting output circuits.The frequency shaping circuit of the input end spreading wave receiver of Si Mite shaping circuit, the input termination Si Mite shaping circuit of two selected on-off circuits, the input end of shaping frequency-selecting output circuit connect the frequency shaping circuit of two selected on-off circuits and long-wave receiver, the frequency input end of output terminal spreading wave receiver respectively.
In Fig. 2, the Si Mite shaping circuit of present embodiment is made of integrated circuit U1, and the model of integrated circuit U1 is DM74LS390.Frequency shaping circuit, 15 pin of the input end 12 pin spreading wave receivers of integrated circuit U1 connect 9 pin and shaping frequency-selecting output circuit, 13 pin connect shaping frequency-selecting output circuit and two selected on-off circuits.
A selected on-off circuit of present embodiment is connected and composed by integrated circuit U2A, integrated circuit U3A, diode D1, R1, R3, R4, C1, C3, C5, and the model of integrated circuit U2A is DM74123, and the model of integrated circuit U3A is DM7400.2 pin of integrated circuit U2A connect the end that 13 pin of integrated circuit U1 and a end that shaping frequency-selecting output circuit, 1 pin ground connection, 3 pin meet R1 and 5v positive source, 14 pin meet C1, the other end that 15 pin meet R1 and C1,2 pin and the negative pole of diode D1 and the end of R3 that 13 pin meet integrated circuit U3A, 1 pin of integrated circuit U3A connects the end, 3 pin of the other end of the positive pole of diode D1 and R3 and the C3 end by R4 shaping frequency-selecting output circuit and C5, the other end ground connection of C3 and C5.
Another selected on-off circuit of present embodiment is connected and composed by integrated circuit U2B, integrated circuit U3B, diode D2, R2, R5, R6, C2, C4, C6, and the model of integrated circuit U2B is DM74123, and the model of integrated circuit U3B is DM7400.10 pin of integrated circuit U2B connect 2 pin of 13 pin of integrated circuit U1 and integrated circuit U2A and shaping frequency-selecting output circuit, 9 pin ground connection, 11 pin and connect the end of R1 and the end that 5v positive source, 6 pin meet C2, the other end that 7 pin meet R2 and C2,5 pin and the negative pole of diode D2 and the end of R5 that 5 pin meet integrated circuit U3B, 4 pin of integrated circuit U3A connect the end, 3 pin of the other end of the positive pole of diode D2 and R5 and the C4 end by R6 shaping frequency-selecting output circuit and C6, the other end ground connection of C4 and C6.
The shaping frequency-selecting output circuit of present embodiment is made of integrated circuit U4, and the model of integrated circuit U4 is DM74153.2 pin of integrated circuit U4 connect the other end of the R4 of a selected on-off circuit, the other end that 14 pin meet the R6 of another selected on-off circuit, 13 pin that 6 pin meet integrated circuit U1,9 pin of 4 pin integrated circuit U1,12 pin that 3 pin meet integrated circuit U1, the frequency input end of output terminal 7 pin spreading wave receivers.
Long-wave receiver outside 1,5,10MHz standard-frequency signal are input to 12 pin of integrated circuit U1, carry out 2,5,10 frequency divisions by integrated circuit U1, thus 1MHz standard-frequency signal and export to the input end of integrated circuit U4.The selected on-off circuit that integrated circuit U2A, integrated circuit U3A, diode D1, R1, R3, R4, C1, C3 and C5 form, automatically judge the frequency signal of being imported, and control integrated circuit U4 switches, and exports the frequency input end of 1MHz standard-frequency signal to long-wave receiver all the time to guarantee integrated circuit U4.Integrated circuit U2B, integrated circuit U3B,, another selected on-off circuit of forming of diode D2, R2, R5, R6, C2, C4 and C6, automatically judge the frequency signal of being imported, and control integrated circuit U4 switches, and exports the frequency input end of 1MHz standard-frequency signal to long-wave receiver all the time to guarantee integrated circuit U4.
Claims (3)
1, a kind of full-automatic long wave standard time and frequency signal receiver standard frequency input automatic dialing unit, it is characterized in that: it comprises the Si Mite shaping circuit, the frequency shaping circuit of input end spreading wave receiver, it comprises a selected on-off circuit and another selected on-off circuit, the input termination Si Mite shaping circuit of a selected on-off circuit and another selected on-off circuit, it also comprises shaping frequency-selecting output circuit, the output terminal of selected on-off circuit of the input termination of this circuit and another selected on-off circuit and the frequency shaping circuit of long-wave receiver, the frequency input end of output terminal spreading wave receiver.
2, according to the described full-automatic long wave standard time and frequency signal receiver standard frequency input automatic dialing unit of claim 1, it is characterized in that a said selected on-off circuit is: 2 pin of integrated circuit U2A connect 13 pin of Si Mite shaping circuit integrated circuit U1,1 pin ground connection, 3 pin connect an end and the 5v positive source of R1,14 pin connect the end of C1,15 pin connect the other end of R1 and C1,13 pin connect 2 pin and the negative pole of diode D1 and the end of R3 of integrated circuit U3A, 1 pin of integrated circuit U3A connects positive pole and the other end of R3 and the end of C3 of diode D1,3 pin are by 2 pin of the integrated circuit U4 of R4 shaping frequency-selecting output circuit and the end of C5, the other end ground connection of C3 and C5.
3, according to the described full-automatic long wave standard time and frequency signal receiver standard frequency input automatic dialing unit of claim 1, it is characterized in that: said another selected on-off circuit is identical with a selected on-off circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02292512 CN2591568Y (en) | 2002-12-20 | 2002-12-20 | Full-automatic Long-wave timing frequency adjustment receiver standard frequency inputting automatic selector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02292512 CN2591568Y (en) | 2002-12-20 | 2002-12-20 | Full-automatic Long-wave timing frequency adjustment receiver standard frequency inputting automatic selector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2591568Y true CN2591568Y (en) | 2003-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02292512 Expired - Fee Related CN2591568Y (en) | 2002-12-20 | 2002-12-20 | Full-automatic Long-wave timing frequency adjustment receiver standard frequency inputting automatic selector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2591568Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101051872B (en) * | 2007-05-16 | 2011-05-04 | 西安理工大学 | Method for obtaining ASF(TOA), combined ASF(TD) and ASF(TOA) measurement |
-
2002
- 2002-12-20 CN CN 02292512 patent/CN2591568Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101051872B (en) * | 2007-05-16 | 2011-05-04 | 西安理工大学 | Method for obtaining ASF(TOA), combined ASF(TD) and ASF(TOA) measurement |
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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 |