CN105182273A - Calibration system used for verifying assembly line time value - Google Patents
Calibration system used for verifying assembly line time value Download PDFInfo
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- CN105182273A CN105182273A CN201510566021.4A CN201510566021A CN105182273A CN 105182273 A CN105182273 A CN 105182273A CN 201510566021 A CN201510566021 A CN 201510566021A CN 105182273 A CN105182273 A CN 105182273A
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Abstract
The invention relates to a calibration system used for verifying assembly line time value. The calibration system comprises a standard test room and tested laboratory satellite receiver, a standard test room and tested laboratory cesium atomic clock, a standard test room and tested laboratory micro jump meter, a standard test room and tested laboratory precise counter and a standard test room and tested laboratory data processing system. The satellite receiver receives a locked satellite signal and generates a 1pps second pulse signal. The cesium atomic clock locally generates a high-precision and stable 1pps second pulse signal. The second pulse signal generated by the satellite receiver and the second pulse signal generated by the cesium atomic clock simultaneously access the precise counter for comparing. The data processing system is used to acquire the time difference between a standard clock and a satellite clock and the time difference between a tested clock and the satellite clock. The standard clock and the tested clock are adjusted. According to the technical scheme of the invention, remote calibration timing can be carried out on a remote clock, and at the same time a calibration result can be traced to national time frequency reference.
Description
Technical field:
The present invention relates to calibration field, more specifically relate to a kind of calibration system of examining and determine streamline time value.
Background technology:
The accuracy of intelligent electric energy meter time value directly affects the interests for electricity consumption both sides.The enforcement of step price, to intelligent electric energy meter time quantum primary system one with have higher requirement accurately and reliably.Calibrating streamline in each province's is as the calibrating installation of intelligent electric energy meter time value accuracy, and the accuracy of its time value and degree of stability are to the unification of intelligent electric energy meter time value and accurately play decisive role.
At present, calibrating streamline relies on satellite one-way timing or NTP time calibration in network to obtain the time, and time value is not examined and determine or calibrated, and there is significant difference between the time standard of each calibrating streamline.Meanwhile, atomic clock or High Precision Crystal Oscillator have high requirements to environment, and the time device according to the mode calibrating and measuring streamline of clock carrying can have an impact to the serviceable life of atomic clock or High Precision Crystal Oscillator.
Frequency calibration Time Created device, adopts the method for satellite common vision realize the calibration of time value and trace to the source, and effectively can solve the problem of calibrating streamline time quantum value calibration, ensures the accurate and unified of intelligent electric energy meter time value.
Summary of the invention:
The object of this invention is to provide a kind of calibration system of examining and determine streamline time value, when can carry out remote calibration pair to strange land clock, do not need carrying, calibration result can be traceable to national Time and frequency standard simultaneously.
For achieving the above object, the present invention is by the following technical solutions: a kind of calibration system of examining and determine streamline time value, comprises code test room satellite receiver, code test room cesium-beam atomic clock, the micro-meter that jumps in code test room, code test room precision counter, code test room data handling system, tested laboratory satellite receiver, the tested atomic clock in tested laboratory, the micro-meter that jumps in tested laboratory, tested laboratory precision counter and tested laboratory data disposal system; Described satellite receiver receives the pps pulse per second signal of the satellite-signal generation 1pps of locking, described cesium-beam atomic clock produces the pps pulse per second signal of the 1pps of high-accuracy stable in this locality, the pps pulse per second signal that described satellite receiver produces and the pps pulse per second signal that cesium-beam atomic clock produces access precision counter simultaneously and compare, and draw the tested atomic clock of difference and tested laboratory of code test room cesium-beam atomic clock and satellite clock time and the difference of satellite clock time through described data handling system calculation process; Described code test room data handling system and described tested room data handling system are carried out information exchange by communication network and respectively by precision counter, described micro-jumping are counted to Introduced Malaria value and regulated the tested atomic clock of described code test room cesium-beam atomic clock and tested laboratory.
Described standard laboratory and described tested laboratory are separately positioned on different places.
Described standard laboratory and described tested laboratory utilize gps satellite navigational system or Beidou satellite navigation system to realize satellite common vision comparison.
Described standard laboratory and described tested laboratory receiving satellite signal simultaneously, do not affect by satellite clock error and travel path.
Described satellite receiver has 16 passages, and described standard laboratory ground and ground, described tested laboratory observe multi-satellite realize continuous free of discontinuities comparison simultaneously.
The difference of described standard time clock and satellite clock time and the difference of described measured clock and satellite clock time compare the mistiming that the difference drawn is exactly measured clock and standard time clock; Mistiming modified value is inputted the micro-meter that jumps in described tested room and finely tunes with closer to the standard time to described measured clock by described measured clock; First ground laboratory standard clock by with higher level's standard comparing, micro-for gained measurement result input standard laboratory meter that jumps is adjusted standard time clock.
With immediate prior art ratio, the invention provides technical scheme and there is following excellent effect
1, technical solution of the present invention utilizes the mode of satellite common vision to realize tracing to the source and comparison of measurement of power production line time value, achieves the remote calibration of metering production line time value;
2, technical solution of the present invention satellite common vision can by means of gps satellite navigational system or Beidou satellite navigation system, and calibration value can be traceable to national time reference;
3, technical solution of the present invention ensures the accurate and unified of intelligent electric energy meter time value;
4, technical solution of the present invention makes intelligent electric meter electric energy tariff have higher accuracy and degree of stability.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention calibration system theory structure schematic diagram.
Embodiment
Below in conjunction with embodiment, the invention will be described in further detail.
Embodiment 1:
The invention of this example provides a kind of calibration system of examining and determine streamline time value, comprise as shown in Figure 1, first ground satellite receiver, first ground cesium-beam atomic clock, the micro-meter that jumps in first ground, first ground precision counter, first ground computer data processing system, second ground satellite receiver, the tested atomic clock in second ground, the micro-meter that jumps in second ground, second ground precision counter, second ground computer data processing system.
First ground and standard laboratory satellite receiver receive the pps pulse per second signal of the satellite-signal generation 1pps of locking, first ground cesium-beam atomic clock produces the pps pulse per second signal of the 1pps of high-accuracy stable in this locality, the pps pulse per second signal that satellite receiver produces and the pps pulse per second signal that cesium-beam atomic clock produces access precision counter simultaneously and compare, and draw the difference of first ground standard time clock and satellite clock time through first ground laboratory computer data handling system calculation process; Second ground and tested laboratory satellite receiver receive the satellite-signal identical with standard laboratory and produce the pps pulse per second signal of 1pps, the tested atomic clock in second ground produces the tested pps pulse per second signal of 1pps in this locality, the pps pulse per second signal that satellite receiver produces and the pps pulse per second signal that tested atomic clock produces access precision counter simultaneously and compare, and draw the difference of second ground measured clock and satellite clock time through second ground laboratory computer data handling system calculation process.The difference of first ground standard time clock and satellite clock time and the difference of second ground measured clock and satellite clock time compare the mistiming that the difference drawn is exactly measured clock and standard time clock, micro-for mistiming modified value input meter that jumps is finely tuned with closer to the standard time to second ground clock by second ground measured clock, in like manner same method and higher level's standard comparing are taked in laboratory, first ground, are adjusted by micro-for laboratory, gained measurement result input first ground meter that jumps to first ground clock.
Remote calibration can be carried out to the time value that streamline is examined and determine in electric system, avoid the various problems that long distance carrying atomic clock or High Precision Crystal Oscillator bring.
Laboratory, first, second two places can utilize gps satellite navigational system or Beidou satellite navigation system to realize satellite common vision comparison.
Satellite time is only as intermediary, and not directly as the time source of calibrating streamline, satellite clock error does not have an impact to Time transfer receiver, and the error in satellite time signals transmitting procedure almost can be offset.
Satellite common vision method refers to that the observer of two diverse locations observes same gps satellite or big-dipper satellite (hereinafter referred to as satellite) at one time, utilizes the time signal of this satellite simultaneously received to carry out Time transfer receiver and synchronous method.Satellite common vision method is using satellite time as the intermediary of Time transfer receiver, satellite clock error does not have an impact to Time transfer receiver, error in satellite time signals transmitting procedure almost can be offset, the error that the equipment that is calibrated exists can be found, obtain high precision of time comparison, thus realize high-quality remote time comparison.Satellite common vision ratio juris is as follows.
If T
a(t), T
bt (), GPS (t) is respectively first, second two places clock and the satellite clock reading in t, then
ΔT
AG(t)＝T
A(t)-GPS(t)
ΔT
BG(t)＝T
B(t)-GPS(t)
Be respectively the time difference of first, second two places time and gps clock.Then first, second two places clock correction is
ΔT
AB(t)＝T
A(t)-T
B(t)＝ΔT
AG(t)-ΔT
BG(t)
Therefore t second ground clock actual value is
T
B(t)＝T
A(t)-ΔT
AB(t)
Temporal frequency metrological standard unit is made up of atomic clock (or High Precision Crystal Oscillator), satellite receiver, computing machine etc., and calibration result can be traceable to national Time and frequency standard.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; although those of ordinary skill in the field are to be understood that with reference to above-described embodiment: still can modify to the specific embodiment of the present invention or equivalent replacement; these do not depart from any amendment of spirit and scope of the invention or equivalent replacement, are all applying within the claims of the present invention awaited the reply.
Claims (6)
1. examine and determine a calibration system for streamline time value, it is characterized in that: comprise code test room satellite receiver, code test room cesium-beam atomic clock, the micro-meter that jumps in code test room, code test room precision counter, code test room data handling system, tested laboratory satellite receiver, the tested atomic clock in tested laboratory, the micro-meter that jumps in tested laboratory, tested laboratory precision counter and tested laboratory data disposal system; Described satellite receiver receives the pps pulse per second signal of the satellite-signal generation 1pps of locking, described cesium-beam atomic clock produces the pps pulse per second signal of the 1pps of high-accuracy stable in this locality, the pps pulse per second signal that described satellite receiver produces and the pps pulse per second signal that cesium-beam atomic clock produces access precision counter simultaneously and compare, and draw the tested atomic clock of difference and tested laboratory of code test room cesium-beam atomic clock and satellite clock time and the difference of satellite clock time through described data handling system calculation process; Described code test room data handling system and described tested room data handling system are carried out information exchange by communication network and respectively by precision counter, described micro-jumping are counted to Introduced Malaria value and regulated the tested atomic clock of described code test room cesium-beam atomic clock and tested laboratory.
2. a kind of calibration system of examining and determine streamline time value as claimed in claim 1, is characterized in that: described standard laboratory and described tested laboratory are separately positioned on different places.
3. a kind of calibration system of examining and determine streamline time value as claimed in claim 1 or 2, is characterized in that: described standard laboratory and described tested laboratory utilize gps satellite navigational system or Beidou satellite navigation system to realize satellite common vision comparison.
4. a kind of calibration system of examining and determine streamline time value as claimed in claim 1 or 2, is characterized in that: described standard laboratory and described tested laboratory receiving satellite signal simultaneously, be not subject to the impact of satellite clock error and travel path.
5. a kind of calibration system of examining and determine streamline time value as claimed in claim 1, it is characterized in that: described satellite receiver has 16 passages, described standard laboratory ground and ground, described tested laboratory observe multi-satellite realize continuous free of discontinuities comparison simultaneously.
6. a kind of calibration system of examining and determine streamline time value as claimed in claim 1, is characterized in that: the difference of described standard time clock and satellite clock time and the difference of described measured clock and satellite clock time compare the mistiming that the difference drawn is exactly measured clock and standard time clock; Mistiming modified value is inputted the micro-meter that jumps in described tested room and finely tunes with closer to the standard time to described measured clock by described measured clock; First ground laboratory standard clock by with higher level's standard comparing, micro-for gained measurement result input standard laboratory meter that jumps is adjusted standard time clock.
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| CN106059621A (en) * | 2016-06-27 | 2016-10-26 | 中国电力科学研究院 | Method, equipment and system for carrying out site testing on accuracy of wired time transmission |
| CN107300849A (en) * | 2017-06-13 | 2017-10-27 | 国网山东省电力公司青岛供电公司 | The measuring method and on-line monitoring system of a kind of precision clock |
| CN108206683A (en) * | 2016-12-19 | 2018-06-26 | 上海申贝科技发展有限公司 | A kind of dynamic compensated pulse circuit |
| CN111106890A (en) * | 2018-10-29 | 2020-05-05 | 中国移动通信有限公司研究院 | Method and equipment for time synchronization |
| CN112713925A (en) * | 2020-12-10 | 2021-04-27 | 国网四川省电力公司电力科学研究院 | Time synchronization device and system based on dual-mode satellite common view |
| CN113108825A (en) * | 2021-03-26 | 2021-07-13 | 山东师范大学 | Atomic clock error measurement and correction method and error measurement and correction instrument |
| CN113156356A (en) * | 2021-05-17 | 2021-07-23 | 河北大学 | Remote calibration system and calibration method for voltage source |
| CN117008036A (en) * | 2023-08-08 | 2023-11-07 | 河北大学 | Remote self-calibration device for voltage sensor |
| CN117092579A (en) * | 2023-08-24 | 2023-11-21 | 河北大学 | Remote self-calibration method and system of voltage transformer based on satellite common view |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106059621A (en) * | 2016-06-27 | 2016-10-26 | 中国电力科学研究院 | Method, equipment and system for carrying out site testing on accuracy of wired time transmission |
| CN106059621B (en) * | 2016-06-27 | 2021-04-02 | 中国电力科学研究院 | Method, equipment and system for testing wired time transmission accuracy on site |
| CN108206683A (en) * | 2016-12-19 | 2018-06-26 | 上海申贝科技发展有限公司 | A kind of dynamic compensated pulse circuit |
| CN108206683B (en) * | 2016-12-19 | 2021-09-24 | 上海申贝科技发展有限公司 | Dynamic compensation pulse circuit |
| CN107300849A (en) * | 2017-06-13 | 2017-10-27 | 国网山东省电力公司青岛供电公司 | The measuring method and on-line monitoring system of a kind of precision clock |
| CN111106890A (en) * | 2018-10-29 | 2020-05-05 | 中国移动通信有限公司研究院 | Method and equipment for time synchronization |
| CN112713925A (en) * | 2020-12-10 | 2021-04-27 | 国网四川省电力公司电力科学研究院 | Time synchronization device and system based on dual-mode satellite common view |
| CN113108825A (en) * | 2021-03-26 | 2021-07-13 | 山东师范大学 | Atomic clock error measurement and correction method and error measurement and correction instrument |
| CN113156356A (en) * | 2021-05-17 | 2021-07-23 | 河北大学 | Remote calibration system and calibration method for voltage source |
| CN113156356B (en) * | 2021-05-17 | 2022-03-29 | 河北大学 | Remote calibration system and calibration method for voltage source |
| CN117008036A (en) * | 2023-08-08 | 2023-11-07 | 河北大学 | Remote self-calibration device for voltage sensor |
| CN117092579A (en) * | 2023-08-24 | 2023-11-21 | 河北大学 | Remote self-calibration method and system of voltage transformer based on satellite common view |
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Application publication date: 20151223 |