CN212343781U - Internal and external time system switching function test system of time system terminal - Google Patents
Internal and external time system switching function test system of time system terminal Download PDFInfo
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- CN212343781U CN212343781U CN202021497676.3U CN202021497676U CN212343781U CN 212343781 U CN212343781 U CN 212343781U CN 202021497676 U CN202021497676 U CN 202021497676U CN 212343781 U CN212343781 U CN 212343781U
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Abstract
The utility model relates to an aerospace technology field, concretely relates to interior outer time system switching function test system at time system terminal, including antenna, time system terminal, B sign indicating number test terminal and time precision tester, the antenna is connected with time system terminal, time system terminal is through an interface connection of first signal connection line with B sign indicating number test terminal, and time system terminal is through another interface connection of second signal connection line with B sign indicating number test terminal, and time system terminal is connected with time precision tester through third signal connection line. The utility model discloses whether can be used for when verifying the time system terminal have the function that produces IRIG-B (DC) time code under the time system mode to and whether the continuity function of code when the test time system terminal can guarantee to export, switch function test system can carry out interior outer time system to a plurality of time system terminals simultaneously and switch function test when in addition, switch convenience and the flexibility of function test when effectively improving time system terminal interior outer time system.
Description
Technical Field
The utility model relates to a space flight technical field, concretely relates to interior outer time system switching function test system at time system terminal.
Background
The time unifying system is a system for providing a unified standard time signal and a standard frequency signal for the measurement and control system. The space flight measurement and control equipment has many types, large quantity and wide distribution, and if the time length is not unified, the task cannot be completed at all. The system provides accurate time when key event characteristic points such as launching takeoff time (L), ignition and shutdown time of each stage of rocket engine, separation time, data injection time, satellite (ship) and rocket separation time, spacecraft orbit time and the like are required. The continuous, reliable and stable operation of the time unification system is the premise of normal work of the measurement and control system, and the performance of the time unification system directly influences the measurement precision and the measurement system of the aerospace measurement and control system.
The standardized time system equipment consists of a timing frequency calibration unit, a frequency standard unit, a time code generation unit, a time code distinguishing unit, a monitoring computer and the like. The timing frequency correction unit is generally provided with a GPS and a timing frequency correction means of a long-short wave time service system; the frequency standard unit comprises a rubidium atomic frequency standard and a universal quartz frequency standard to form a local redundant frequency standard; the time code generating unit forms a B time code in a standard format through more than 3 redundant modules, and the B time code is distributed and transmitted to nearby user equipment through the time code distinguishing unit; the monitoring microcomputer visually displays the parameters and the states of all the units and reports the running condition of the equipment to the upper-level network management.
Before time system equipment drops into practical application, indispensable be that the function is switched to the interior outer time system of time system equipment to the needs detect, and among the prior art, switch the function test loaded down with trivial details to the interior outer time system of time system equipment, it is long consuming time, have the high-efficient production that hinders time system equipment, for this, the utility model provides a simple structure uses the interior outer time system at convenient time system terminal to switch function test system.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's is not enough, an interior outer time system switching function test system at time system terminal is provided, whether can be used for verifying time system terminal has the function that produces IRIG-B (DC) time sign indicating number under interior time system mode, and time system terminal is in the inefficacy of outer time system when testing, automatic turning to interior time system, time system terminal whether can guarantee the continuity function of output time sign indicating number, and switch function test in an interior outer time system and can carry out interior outer time system switching function test to a plurality of time system terminals simultaneously at an interior outer time system switching function test system, and each time system terminal independent operation each other when carrying out interior outer time system switching function test, mutual noninterference, the convenience and the flexibility of time system terminal interior outer time system switching function test when improving.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides an interior outer time of time system terminal switches function test system, includes antenna, time system terminal, B sign indicating number test terminal and time precision tester, the antenna is connected with time system terminal, time system terminal is through an interface connection of first signal connection line with B sign indicating number test terminal, and time system terminal is through another interface connection of second signal connection line with B sign indicating number test terminal, and time system terminal is connected with time precision tester through third signal connection line.
Furthermore, the time system terminal and the B code test terminal are both provided with display modules, and the display modules are used for displaying time information. When the internal and external time system switching function of the time system terminal needs to be tested, the antenna is connected with the time system terminal, then the time system terminal is connected with one interface of the B code test terminal through a first signal connecting line, meanwhile, the time system terminal is connected with the other interface of the B code test terminal through a second signal connecting line, then the time precision tester is connected with the time system terminal through a third signal connecting line, then the test is carried out, the connection between the antenna and the time system terminal is firstly disconnected, the time system terminal is controlled to transmit B (DC) signals to the B code test terminal, the time service is carried out on the B code test terminal, and then whether the time of the B code test terminal is consistent with the time of the time system terminal or not is observed; then, the antenna is connected with a time system terminal, after the time system terminal receives and locks satellite signals transmitted by the antenna, B (AC) signals and B (DC) signals are transmitted to a B code test terminal for time service, and then whether the time of the B code test terminal is consistent with the time of the time system terminal in a B (AC) signal transmission time service state and a B (DC) signal transmission time service state is observed; then, the satellite signal input of the antenna to the time system terminal is cut off, and whether the time of the B code test terminal does not jump or not and whether the time of the B code test terminal is consistent with the time of the time system terminal or not at the moment of cutting off the satellite signal input and within a period of time thereafter are observed; the control time terminal transmits a 1PPS output signal to the time precision tester oscilloscope, and observes whether the 1PPS output signal is continuous and does not jump at the moment of disconnecting the satellite signal input and in a period of time thereafter; and then judging whether the internal and external time system switching function of the time system terminal is qualified or not according to the test result of the step.
Furthermore, the internal and external time system switching function test system further comprises a power supply, and the antenna, the time system terminal, the B code test terminal and the time precision tester are respectively connected with the power supply.
Furthermore, a fourth switch is arranged on a connecting line of the antenna and the time system terminal.
Furthermore, a first switch is arranged on the first signal connecting line, and a second switch is arranged on the second signal connecting line.
Further, the first signal connection line is used for transmitting B (AC) signals, and the second signal connection line is used for transmitting B (DC) signals.
Further, the third signal connection line is used for transmitting a 1PPS output signal.
Further, a third switch is disposed on the third signal connection line.
Further, the time precision tester is an oscilloscope.
Furthermore, the time system terminal, the B code test terminal and the time precision tester form a unit test group, and a plurality of unit test groups are arranged in the internal and external time system switching function test system. The time system terminal, the B code test terminal and the time precision tester form a unit test group, a plurality of unit test groups are arranged in an internal and external time system switching function test system, a fourth switch is arranged on a connecting line of an antenna and the time system terminal, and then the internal and external time system switching function test system can simultaneously carry out internal and external time system switching function tests on a plurality of time system terminals, and each time system terminal runs independently when the internal and external time system switching function tests are carried out, and the internal and external time system switching function tests are not interfered with each other, so that the convenience and the flexibility of the internal and external time system switching function tests of the time system terminals are improved.
The utility model has the advantages that: the utility model discloses interior outer time system switching function test system at time system terminal, whether can be used for when verifying the time system terminal have produce IRIG-B (DC) time code under interior time system mode, and the time system terminal is in the time system inefficacy outside during the test, turn to interior time system automatically, the time system terminal can guarantee the continuity function of output time code, and switch function test system can carry out interior outer time system switching function test to a plurality of time system terminals simultaneously at interior outer time system, and each time system terminal independent operation each other when carrying out interior outer time system switching function test, mutual noninterference, the convenience and the flexibility that interior outer time system switching function test at time system terminal were improved.
Drawings
FIG. 1 is a schematic diagram of module connection of the internal and external timing switching function test system of the present invention;
FIG. 2 is a schematic diagram of another module connection of the internal and external timing switching function testing system of the present invention;
in the figure, 1, an antenna; 2. a time system terminal; 3. b code test terminal; 4. a time precision tester; 5. a first signal connection line; 6. a second signal connection line; 7. a third signal connection line; 8. a first switch; 9. a second switch; 10. a third switch; 11. a fourth switch; 12. and a display module.
Detailed Description
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
As shown in fig. 1 and 2, an internal and external timing system switching function test system for a timing system terminal includes an antenna 1, a timing system terminal 2, a B code test terminal 3, and a time precision tester 4, where the antenna 1 is connected to the timing system terminal 2, the timing system terminal 2 is connected to an interface of the B code test terminal 3 through a first signal connection line 5, the timing system terminal 2 is connected to another interface of the B code test terminal 3 through a second signal connection line 6, and the timing system terminal 2 is connected to the time precision tester 4 through a third signal connection line 7.
Specifically, the time system terminal 2 and the B code testing terminal 3 are both provided with a display module 12, and the display module 12 is used for displaying time information. When the internal and external time system switching function of the time system terminal 2 needs to be tested, the antenna 1 is connected with the time system terminal 2, the time system terminal 2 is connected with one interface of the B code test terminal 3 through a first signal connecting line 5, the time system terminal 2 is connected with the other interface of the B code test terminal 3 through a second signal connecting line 6, the time precision tester 4 is connected with the time system terminal 2 through a third signal connecting line 7, then the test is carried out, the connection between the antenna 1 and the time system terminal 2 is firstly disconnected, the time system terminal 2 is controlled to transmit a B (DC) signal to the B code test terminal 3, the time service is carried out on the B code test terminal 3, and then whether the time of the B code test terminal 3 is consistent with the time of the time system terminal 2 or not is observed; then, the antenna 1 is connected with the timing terminal 2, after the timing terminal 2 receives and locks the satellite signal transmitted by the antenna 1, the B (AC) signal and the B (DC) signal are transmitted to the B code test terminal 3 for time service, and then whether the time of the B code test terminal 3 is consistent with the time of the timing terminal 2 in the B (AC) signal transmission time service state and the B (DC) signal transmission time service state is observed; then disconnecting the satellite signal input of the antenna 1 to the timing terminal 2, observing whether the time of the B code test terminal 3 does not jump at the moment of disconnecting the satellite signal input and within a period of time thereafter, and whether the time of the B code test terminal 3 is consistent with the time of the timing terminal 2; controlling a time system terminal 2 to transmit a 1PPS output signal to a time precision tester 4 by an oscilloscope, and observing whether the 1PPS output signal is continuous and does not jump at the moment of disconnecting satellite signal input and in a period of time thereafter; and then judging whether the internal and external time system switching function of the time system terminal 2 is qualified or not according to the test result of the step.
Specifically, the internal and external time system switching function test system further comprises a power supply, and the antenna 1, the time system terminal 2, the B code test terminal 3 and the time precision tester 4 are respectively connected with the power supply.
Specifically, a fourth switch 11 is disposed on a connection line between the antenna 1 and the time system terminal 2.
Specifically, a first switch 8 is disposed on the first signal connection line 5, and a second switch 9 is disposed on the second signal connection line 6.
In particular, the first signal connection 5 is used for transmitting b (ac) signals and the second signal connection 6 is used for transmitting b (dc) signals.
In particular, the third signal connection 7 is used for transmitting a 1PPS output signal.
Specifically, a third switch 10 is disposed on the third signal connection line 7.
Specifically, the time precision tester 4 is an oscilloscope.
Specifically, the timing system terminal 2, the B-code test terminal 3, and the time precision tester 4 constitute a unit test group, and a plurality of unit test groups are provided in the internal and external timing system switching function test system. A time system terminal 2, a B code test terminal 3 and a time precision tester 4 form a unit test group, a plurality of unit test groups are arranged in an internal and external time system switching function test system, a fourth switch 11 is arranged on a connecting line of an antenna 1 and the time system terminal 2, and then the internal and external time system switching function test system can simultaneously carry out internal and external time system switching function tests on the plurality of time system terminals 2, and each time system terminal 2 runs independently when the internal and external time system switching function tests are carried out, and the convenience and the flexibility of the internal and external time system switching function tests of the time system terminal 2 are improved.
When the time precision testing device is used, when the internal and external time system switching function of the time system terminal 2 needs to be tested, the antenna 1 is firstly connected with the time system terminal 2 (the fourth switch 11 is controlled to be in a disconnected state during connection), then the time system terminal 2 is connected with one interface of the B code testing terminal 3 through the first signal connecting line 5, meanwhile, the time system terminal 2 is connected with the other interface of the B code testing terminal 3 through the second signal connecting line 6, then the time precision testing instrument 4 is connected with the time system terminal 2 through the third signal connecting line 7, and then testing is carried out,
step S1, firstly, controlling the fourth switch 11 to disconnect the antenna 1 from the time master terminal 2, then controlling the time master terminal 2 to transmit a B (DC) signal to the B code test terminal 3, carrying out time service on the B code test terminal 3, and then observing whether the time of the B code test terminal 3 is consistent with the time of the time master terminal 2;
step S2, then controlling a fourth switch 11 to connect an antenna 1 with a time system terminal 2, after the time system terminal 2 receives and locks a satellite signal transmitted by the antenna 1, firstly controlling the time system terminal 2 to input a B (AC) signal to a B code test terminal 3 for time service, then observing whether the time of the B code test terminal 3 is consistent with the time of the time system terminal 2 in a B (AC) signal transmission time service state, then transmitting a B (DC) signal to the B code test terminal 3 for time service by the time system terminal 2, and then observing whether the time of the B code test terminal 3 is consistent with the time of the time system terminal 2 in a B (DC) signal transmission time service state;
step S3, then controlling the fourth switch 11 to disconnect the satellite signal input of the antenna 1 to the time terminal 2, observing whether the time of the B code test terminal 3 does not jump at the moment of disconnecting the satellite signal input and within a period of time thereafter, and whether the time of the B code test terminal 3 is consistent with the time of the time terminal 2;
step S4, controlling the timing terminal 2 to transmit 1PPS output signals to the time precision tester 4 by an oscilloscope, and observing whether the 1PPS output signals are continuous and do not jump at the moment of disconnecting satellite signal input and within a period of time thereafter;
and then judging whether the internal and external time system switching function of the time system terminal 2 is qualified or not according to the test result of the step, if all the test results in the step are yes, judging that the internal and external time system switching function of the time system terminal 2 is qualified, otherwise, judging that the internal and external time system switching function is unqualified.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (10)
1. The utility model provides an interior outer time system switching function test system of time system terminal which characterized in that, includes antenna, time system terminal, B sign indicating number test terminal and time precision tester, the antenna is connected with time system terminal, time system terminal is through an interface connection of first signal connection line with B sign indicating number test terminal, and time system terminal is through another interface connection of second signal connection line with B sign indicating number test terminal, and time system terminal is connected with the time precision tester through third signal connection line.
2. The system for testing the internal and external timing switching function of the timing terminal according to claim 1, wherein the timing terminal and the B-code testing terminal are both provided with a display module, and the display module is used for displaying time information.
3. The system for testing the internal and external timing switching functions of the timing terminal according to claim 1, wherein the system for testing the internal and external timing switching functions further comprises a power supply, and the antenna, the timing terminal, the B-code testing terminal and the time precision tester are respectively connected to the power supply.
4. The system for testing the internal and external timing switching functions of the timing terminal according to claim 1, wherein a fourth switch is disposed on a connection line between the antenna and the timing terminal.
5. The system for testing the internal and external timing switching function of the timing terminal according to claim 1, wherein a first switch is disposed on the first signal connection line, and a second switch is disposed on the second signal connection line.
6. The system for testing internal and external clock switching function of a clock terminal as claimed in claim 1, wherein said first signal connection line is used for transmitting B (AC) signal, and said second signal connection line is used for transmitting B (DC) signal.
7. The system for testing internal and external clock switching functions of a clock terminal as claimed in claim 1, wherein said third signal connection is used for transmitting 1PPS output signal.
8. The system for testing the internal and external timing switching functions of a timing terminal according to claim 1, wherein a third switch is disposed on the third signal connection line.
9. The system for testing the internal and external timing switching functions of the timing terminal according to claim 1, wherein the time precision tester is an oscilloscope.
10. The system according to claim 1, wherein the timing terminal, the B-code test terminal, and the time precision tester form a unit test group, and a plurality of unit test groups are provided in the system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021497676.3U CN212343781U (en) | 2020-07-25 | 2020-07-25 | Internal and external time system switching function test system of time system terminal |
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| CN202021497676.3U CN212343781U (en) | 2020-07-25 | 2020-07-25 | Internal and external time system switching function test system of time system terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114924475A (en) * | 2022-05-27 | 2022-08-19 | 合肥富煌君达高科信息技术有限公司 | Equipment time service signal acquisition method and circuit for multi-type time system signal source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114924475A (en) * | 2022-05-27 | 2022-08-19 | 合肥富煌君达高科信息技术有限公司 | Equipment time service signal acquisition method and circuit for multi-type time system signal source |
| CN114924475B (en) * | 2022-05-27 | 2024-01-19 | 合肥中科君达视界技术股份有限公司 | Equipment time service signal acquisition method and circuit for multi-type time system signal source |
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