CN208999784U - The test macro of GPS time synchronous error - Google Patents
The test macro of GPS time synchronous error Download PDFInfo
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- CN208999784U CN208999784U CN201821655157.8U CN201821655157U CN208999784U CN 208999784 U CN208999784 U CN 208999784U CN 201821655157 U CN201821655157 U CN 201821655157U CN 208999784 U CN208999784 U CN 208999784U
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- 238000012360 testing method Methods 0.000 title claims abstract description 17
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 12
- 238000012545 processing Methods 0.000 claims description 6
- 230000002123 temporal effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004891 communication Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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Abstract
The test macro of the utility model offer GPS time synchronous error; Portable GPS time check instrument, microcomputer protecting device and main GPS time tester; the microcomputer protecting device is connect with main GPS time tester, using GPS time signal as the external time reference of master clock；The microcomputer protecting device Portable GPS time check instrument signal connection; measure the tripping moment of microcomputer protecting device; and with the tripping moment in microcomputer protecting device accident report and compared with; solves the error of test Microcomputer Protection and automation equipment receiving time; so that scene protection device controls within the limits prescribed in the satellite synchronization clock synchronization time, accident is analyzed when to system jam and plays critically important effect while also greatly reducing because of forced outage bring economic loss.
Description
Technical field
The utility model relates generally to the test macro in Microcomputer Protection field more particularly to GPS time synchronous error.
Background technique
Nowadays Microcomputer Protection and automation equipment have been generallyd use using GPS or big-dipper satellite time synchronization clock synchronization, though
Right Display panel time synchronization, but due to the receive capabilities of each device difference, so have error appearance after operation a period of time,
Require very high to Microcomputer Protection and automation equipment, it is specified that time synchronization correctness is 10 milliseconds, but at the scene to Microcomputer Protection
And the error of automation equipment receiving time has no idea to test, due to not knowing about the time error of device, so when system is sent out
When raw failure, the protective device time disunity of two sides or more sides brings difficulty in analyzing failure cause, therefore cannot be as early as possible
It solves the problems, such as.
A kind of existing GPS time synchronizing device detection system of CN201020653953.5, the system include time base source,
Communication protocol test device, digital storage oscilloscope；The time base source is for providing standard pulse per second (PPS)；Communication protocol is surveyed
Whether the communication message time signal format that trial assembly sets for testing the output of GPS time synchronizing device accords with and reference format；Number
Storage oscillograph is used to detect the pulse per second (PPS) and the mismatch error of communication message time of GPS time synchronizing device output, described
Trigger condition of the standard pulse per second (PPS) as the digital storage oscilloscope.The synchronous detection dress of this programme effective solution GPS time
Communication protocol format, the matching problem of communication message time and burst length set.
Utility model content
The utility model provides the test macro of GPS time synchronous error, and accident is analyzed when to system jam and is played
Critically important effect also greatly reduces because of forced outage bring economic loss simultaneously, to achieve the goals above, use with
Lower technical solution, present patent application include:
Portable GPS time check instrument, microcomputer protecting device and main GPS time tester, the microcomputer protecting device
It is connect with main GPS time tester, using GPS time signal as the external time reference of master clock；The microcomputer protecting device
Portable GPS time check instrument signal connection, measure the tripping moment of microcomputer protecting device, and with microcomputer protecting device accident report
Tripping moment in announcement simultaneously compares.
Preferably, the Portable GPS time check instrument includes: GPS receiver, clock difference measuring section, random external thing
Moment record part, output of pulse signal delay component, IRIG-B timing code output par, c and temporal information output occur for part
Part.
Preferably, the GPS receiver includes: antenna part, receiving portion, data processing section, and antenna part passes through
Receiving portion is connect with data processing division sub-signal, is used for transmission position, temporal information.
Preferably, the clock difference measuring section using two input standards and is tested, two output 1PPS and 1PPM,
It is Transistor-Transistor Logic level signal, with the accuracy of the GPS standard clock apparatus used on site.
Preferably, the 1PPS sky of the random external event generation time record part available standards clock apparatus output connects
The accuracy of point signal, the closing or opening moment for recording, showing with export the contact.
Preferably, the output of pulse signal delay component is by delay data input, delay pulse input/output and monolithic
Microprocessor composition.
Preferably, the IRIG-B timing code output par, c by DC direct current code generator, AC alternating current code generator and input/
Output interface circuit composition.
The utility model has the beneficial effects that solving the error of test Microcomputer Protection and automation equipment receiving time, make
It obtains scene protection device to control within the limits prescribed in the satellite synchronization clock synchronization time, analysis accident rises when giving system jam
Also greatly reduce because of forced outage bring economic loss simultaneously to critically important effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of present patent application.
Specific embodiment
As shown in Figure 1 it is found that the utility model includes: Portable GPS time check instrument, microcomputer protecting device and master
GPS time tester, the microcomputer protecting device is connect with main GPS time tester, using GPS time signal as master clock
External time reference；The microcomputer protecting device Portable GPS time check instrument signal connection, measures the jump of microcomputer protecting device
The lock moment, and with the tripping moment in microcomputer protecting device accident report and compared with.
Preferably, the Portable GPS time check instrument includes: GPS receiver, clock difference measuring section, random external thing
Moment record part, output of pulse signal delay component, IRIG-B timing code output par, c and temporal information output occur for part
Part.
Preferably, the GPS receiver includes: antenna part, receiving portion, data processing section, and antenna part passes through
Receiving portion is connect with data processing division sub-signal, after correcting propagation delay time in real time, exports 1PPS (GPS) second arteries and veins of TTL interface
The GPS data that punching and RS232 interface satellite resolve.
Preferably, the clock difference measuring section is by phaselocking frequency multiplier, time difference measurement control circuit and Shi Ji frequency counter
It forms with single chip microcomputer, for measuring the time difference of clock deviation or pulse signal, is verified for clockwork timing accuracy.
Preferably, random external event generation time record part is by three independent triggerings and control circuit, and 20
Position timing code interface (Hour Minute Second), 24 time-code interfaces (millisecond 12, microsecond 12) and chip microprocessor composition, for remembering
Record, display and the closing or opening moment for exporting the contact.
In three independent triggerings and control circuit, " normally opened 1 " is (when " normally opened 1 "/" normally closed " switch spanner to " normally opened 1 " position
When setting), " normally opened 2 " and " input signal of normally opened 3 ", it is effective to the rising edge of trigger pulse；It is " normally closed " input (when " normally opened 1 "/
When " normally closed " switch spanner is to " normally closed " position), it is effective to the failing edge of trigger pulse；Chance event record is on voltage pulse
At the time of liter corresponding to edge (normally opened) or voltage pulse failing edge (normally closed).
Preferably, the output of pulse signal delay component is by delay data input, delay pulse input/output and monolithic
Microprocessor composition.
Preferably, the IRIG-B timing code output par, c by DC direct current code generator, AC alternating current code generator and input/
Output interface circuit composition.
Using the above scheme, when protective device trips, the trip outlet contact of protective device is connected to Portable GPS
The input terminal of the random external event generation time record part of time check instrument, by the jump on Portable GPS time check instrument
Lock outlet junctions closing moment is compared with the tripping moment in protective device accident report, it can be determined that is tested Microcomputer Protection dress out
The time synchronization accuracy set, if the protective device GPS clock synchronization trueness error measured exceeds the time defined above, Ze Qing producer
In advance with adjustment, with the method and Portable GPS time check instrument is used, when solving Microcomputer Protection and automation equipment reception
Between error.
The principles and effects of present patent application are only illustrated in above-described embodiment, not for limitation this patent Shen
Please.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to present patent application
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of present patent application
All equivalent modifications or change completed under mind and technical idea, the claim that should be asked by this patent are covered.
Claims (7)
- The test macro of 1.GPS time synchronization error, it is characterised in that: include: Portable GPS time check instrument, Microcomputer Protection Device and main GPS time tester, the microcomputer protecting device are connect with main GPS time tester, are made with GPS time signal For the external time reference of master clock；The microcomputer protecting device Portable GPS time check instrument signal connection, measures microcomputer guarantor The tripping moment of protection unit, and with the tripping moment in microcomputer protecting device accident report and compared with.
- 2. the test macro of GPS time synchronous error according to claim 1, it is characterised in that: when the Portable GPS Between tester include: GPS receiver, clock difference measuring section, random external event generation time record part, output of pulse signal Delay component, IRIG-B timing code output par, c and temporal information output par, c.
- 3. the test macro of GPS time synchronous error according to claim 1, it is characterised in that: the GPS receiver packet Include: antenna part, receiving portion, data processing section, antenna part are connect by receiving portion with data processing division sub-signal, It is used for transmission position, temporal information.
- 4. the test macro of GPS time synchronous error according to claim 1, it is characterised in that: the clock deviation measurement portion It is divided to using two input standards and tested, two output 1PPS and 1PPM, are Transistor-Transistor Logic level signal, with using on site GPS standard clock apparatus accuracy.
- 5. the test macro of GPS time synchronous error according to claim 1, it is characterised in that: the random external thing The accuracy of the 1PPS idle contact signal of moment record part available standards clock apparatus output occurs for part, for recording, showing With the closing or opening moment for exporting the contact.
- 6. the test macro of GPS time synchronous error according to claim 2, it is characterised in that: the pulse signal is defeated Delay component is made of delay data input, delay pulse input/output and chip microprocessor out.
- 7. the test macro of GPS time synchronous error according to claim 2, it is characterised in that: the IRIG-B time Code output par, c is made of DC direct current code generator, AC alternating current code generator and input/output interface circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821655157.8U CN208999784U (en) | 2018-10-11 | 2018-10-11 | The test macro of GPS time synchronous error |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821655157.8U CN208999784U (en) | 2018-10-11 | 2018-10-11 | The test macro of GPS time synchronous error |
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| Publication Number | Publication Date |
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| CN208999784U true CN208999784U (en) | 2019-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821655157.8U Expired - Fee Related CN208999784U (en) | 2018-10-11 | 2018-10-11 | The test macro of GPS time synchronous error |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110737188A (en) * | 2019-10-14 | 2020-01-31 | 国网河北省电力有限公司 | Clock detector of portable substation secondary equipment |
| CN116449132A (en) * | 2023-04-12 | 2023-07-18 | 杭州市质量技术监督检测院 | Online detection method for closed-loop type full-automatic charging pile |
-
2018
- 2018-10-11 CN CN201821655157.8U patent/CN208999784U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110737188A (en) * | 2019-10-14 | 2020-01-31 | 国网河北省电力有限公司 | Clock detector of portable substation secondary equipment |
| CN116449132A (en) * | 2023-04-12 | 2023-07-18 | 杭州市质量技术监督检测院 | Online detection method for closed-loop type full-automatic charging pile |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190618 |
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| CF01 | Termination of patent right due to non-payment of annual fee |