CN201812155U - Satellite synchronous slave clock device - Google Patents
Satellite synchronous slave clock device Download PDFInfo
- Publication number
- CN201812155U CN201812155U CN2010202481179U CN201020248117U CN201812155U CN 201812155 U CN201812155 U CN 201812155U CN 2010202481179 U CN2010202481179 U CN 2010202481179U CN 201020248117 U CN201020248117 U CN 201020248117U CN 201812155 U CN201812155 U CN 201812155U
- Authority
- CN
- China
- Prior art keywords
- module
- time source
- time
- control module
- satellite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Electric Clocks (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
The utility model discloses a satellite synchronous slave clock device comprising a time source input module, a time source control module, a central control module, a display control module, an output module, a time source detection module and an expansion device module, wherein a satellite time source module, the time source control module, the output module, the expansion device module, the time source detection module, the display control module and the central control module are connected by mother board bus-bars; and the satellite time source module, the output module and the time source control module are connected by mother board bus-bars. The satellite synchronous slave clock device supplies a standard time source for external equipment by acquiring an external input time signal and then adjusting a local clock to control the time difference within a certain precision range. In addition, the satellite synchronous slave clock device provides various units of an electrical power system with a set of independent, reliable and accurate system for unifying, allocating and controlling time.
Description
Technical field
The utility model relates to a kind of Time synchronization technique, particularly relates to a kind of satellite synchronously from clock apparatus.
Background technology
Inner each delivery end of electric system at present, receiving end widely distributed and disperseing, automation equipment inside all carries clock, time service device based on GPS (global location navigational system) is perhaps arranged in the station, its inherent error is difficult to avoid, increase along with working time, accumulated error can be increasing, can lose correct time measurement effect.
Along with the raising of operation of power networks technical merit, most of transformer station adopts the comprehensive automation scheme, and distant place centralized control and operation had both improved labour productivity, has reduced again to think the possibility of maloperation.Therefore, to require be the basic demand of electric substation automation system to the time synchronized of automated system real-time clock.In order to guarantee power grid security and economical operation, various automation equipment widespread uses, the operate as normal of these devices and the performance of effect, too busy to get away equally unified the whole network time reference based on the computer technology and the communication technology.Some basic operation system times are inconsistent if inconsistent meeting of time directly causes electric power, cause data statistics error to occur, and analysis result is nonsensical, and fault analysis device can't be located, and even more seriously must bring some security incidents to electric power.
The electrical network of electric power more than 90% all is to adopt the gps system time service at present, and a spot of GPS and the passive time service of the Big Dipper are also arranged simultaneously.At present time service equipment can't be known and As time goes on obtains the running status of self and the precision of time service, and in a single day clock is made mistakes and can be brought great potential safety hazard.
The utility model content
The technical problems to be solved in the utility model is in order to overcome the defective of prior art, provide a kind of satellite synchronously from clock apparatus, it is to serve as that the satellite major clock that bimodulus design is carried out on the basis obtains the satellite time reference signal with satellite system of the Big Dipper and global location navigational system (GPS), through exporting to from clock time signal after the intelligentized time source control algolithm calculating, receive behind this signal again by efficient control algolithm from clock, guarantee the high precision of system's output time, to the clock apparatus of the abundanter time output interface of major clock expansion.
The utility model solves above-mentioned technical matters by following technical proposals: a kind of satellite is synchronously from clock apparatus, it is characterized in that it comprises time source load module, time source control module, Central Control Module, shows control module, output module, time source detection module and expanding unit module; Time source load module, time source control module, output module, expanding unit module, time source detection module, show between control module and the Central Control Module and be connected by motherboard bus, time source load module, output module are connected by motherboard bus with the time source control module.
Positive progressive effect of the present utility model is:
(1) the utility model can insert multiple signal time source simultaneously, by time source control algolithm efficiently, realizes the intelligent handoff technique of many time sources, has guaranteed high precision, the high reliability request of system's output time.
(2) the utility model satellite is synchronously from clock, can satisfy the demand of numerous equipment of electric power with the output signal of major clock by multistage expansion from clock.
(3) the utility model satellite can detect the signal of external time source synchronously from clock, and the status information of detected information and self-operating sent to major clock, be transferred to far-end monitoring system by major clock Beidou satellite communication function then, realize that different local satellites are synchronously from the status monitoring and the Long-distance Control of clock.
Description of drawings
Fig. 1 is that the utility model satellite is synchronously from the enforcement connection layout of clock.
Fig. 2 is that the utility model satellite is synchronously from the module frame chart of clock apparatus.
Fig. 3 is that satellite in the utility model is synchronously from clock time service theory diagram.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
As shown in Figure 1, electric power synchro system integral body comprises major clock, is equipped with clock, a plurality of from clock, and major clock is with clock is by gps antenna or Big Dipper antenna reception gps satellite or big-dipper satellite time signal fully, and the time signal that produces standard is exported.And by the realization wireless telecommunications of big-dipper satellite system.Major clock be equipped with clock and link to each other with IRIG-B sign indicating number (a kind of timing code) by optical fiber cable, major clock and be equipped with clock and provide time reference signal for whole movement environment, need not to insert again antenna from clock, they by signal cable with IRIG-B sign indicating number (a kind of timing code) B sign indicating number and major clock be equipped with clock and link to each other, and from major clock be equipped with clock and obtain time reference signal, indirection point and peripheral hardware are made as motion main frame, main transformer protection, main transformer observing and controlling and main transformer high-pressure side outward when clock exports time reference signal to each by all kinds of time signal interfaces; Major clock, be equipped with clock and can be connected with computing machine by serial ports from clock, debug and be provided with a plurality of.
As shown in Figure 2, the utility model satellite comprises time source load module, time source control module, Central Control Module, shows control module, output module, time source detection module and expanding unit module from clock apparatus synchronously, time source load module, time source control module, output module, expanding unit module, time source detection module, shows between control module and the Central Control Module and is connected the transmission that realizes data communication and control signal by motherboard bus.Time source load module, output module are connected the transmission that realizes 1PPS (pps pulse per second signal) with the time source control module by motherboard bus.
As shown in Figure 3, the utility model from the principle of work of clock time service is: time service is by the time source load module, Central Control Module, the time source detection module, time source control module and IRIG-B sign indicating number time message generative circuit etc. are finished, the time source load module can receive wired benchmark, mutual send state information between time source load module and the Central Control Module, the time source detection module sends detection information to Central Control Module, mutual send state information between Central Control Module and the time source control module, IRIG-B sign indicating number time message generative circuit is isolated to sent information such as B sign indicating number and time message by time service device by photoelectricity.
Wherein the time source load module comprises 4 road input sources, can be IRIG-B sign indicating number, 1PPS+TOD, SDH, PTP etc.Wired time B coded signal is inserted in wired B sign indicating number time source importation, and 1PPS+TOD offers the time source control module and selects output.
The utility model satellite has following function from clock apparatus synchronously:
A. time source calculates the comparison function
Punctual circuit provides an internal oscillator for system, and this can measure equipment simultaneously to the precision of time source.Satellite-signal and crystal inside mutually combine and complement one another, but the shake of elimination satellite-signal, the output that assurance equipment is stable.A second phenomenon can not appear interrupting and lacking in the transmission that guarantees temporal information simultaneously.Compare according to all time source signals of device simultaneously, give corresponding difference in real time, report to centring system.
B. control and management function
The control and management function mainly contains the function of two aspects: the state real-time report of each module is given the control and management module on the one hand, reports to center monitoring management platform or monitoring of tools management system according to the frequency of setting simultaneously; Finish Distribution Center's monitoring management platform or the directly instruction assigned of the monitoring management system of connection device on the other hand.
C. time source measuring ability
Time source detects and mainly to be divided into two aspects: the one, the degree of convergence of pulse per second (PPS) is detected, and promptly test the shake of 1PPS (pps pulse per second signal), this can reflect the quality of a satellite clock.Be the test of absolute error on the other hand, promptly use this device to compare, mainly detect the precision and the fault of clock as standard time source and tested time source.
D. time source control function
Judge and selection output time signal according to set time source priority orders of time.
E. high precision time service, punctual function
The utility model adopts advanced technology algorithm from clock synchronously, cooperates the mode of thinking of innovation, makes the synchronization accuracy of itself and satellite time synchronous master clock higher.
Though more than described embodiment of the present utility model, but those skilled in the art is to be understood that, these only illustrate, and under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to these embodiments.Therefore, protection domain of the present utility model is limited by appended claims.
Claims (1)
1. a satellite is synchronously from clock apparatus, it is characterized in that, it comprises time source load module, time source control module, Central Control Module, shows control module, output module, time source detection module and expanding unit module, satellite time source module, time source control module, output module, expanding unit module, time source detection module, show between control module and the Central Control Module and be connected by motherboard bus, time source load module, output module are connected by motherboard bus with the time source control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202481179U CN201812155U (en) | 2010-07-02 | 2010-07-02 | Satellite synchronous slave clock device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202481179U CN201812155U (en) | 2010-07-02 | 2010-07-02 | Satellite synchronous slave clock device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201812155U true CN201812155U (en) | 2011-04-27 |
Family
ID=43895095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202481179U Expired - Fee Related CN201812155U (en) | 2010-07-02 | 2010-07-02 | Satellite synchronous slave clock device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201812155U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323739A (en) * | 2011-09-20 | 2012-01-18 | 郑州轻工业学院 | Multilevel time measurement and control method in synchronous clock technology |
| CN104683090A (en) * | 2015-03-19 | 2015-06-03 | 浙江赛思电子科技有限公司 | Expandable clock monitoring device and method |
| CN103338102B (en) * | 2013-07-08 | 2016-07-13 | 国核电力规划设计研究院 | A kind of time synchronization system in nuclear power plant |
-
2010
- 2010-07-02 CN CN2010202481179U patent/CN201812155U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323739A (en) * | 2011-09-20 | 2012-01-18 | 郑州轻工业学院 | Multilevel time measurement and control method in synchronous clock technology |
| CN102323739B (en) * | 2011-09-20 | 2014-02-05 | 郑州轻工业学院 | Multilevel time measurement and control method in synchronous clock technology |
| CN103338102B (en) * | 2013-07-08 | 2016-07-13 | 国核电力规划设计研究院 | A kind of time synchronization system in nuclear power plant |
| CN104683090A (en) * | 2015-03-19 | 2015-06-03 | 浙江赛思电子科技有限公司 | Expandable clock monitoring device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201425704Y (en) | Satellite synchronous main clock device | |
| CN101881938A (en) | Satellite synchronous master clock device | |
| CN201425705Y (en) | Electric power system time synchronizer | |
| US20200309829A1 (en) | On-line monitoring system for the performance of the measurement equipment in the entire power grid based on wide-area synchronous measurement | |
| CN102055544B (en) | System and method for synchronously monitoring secondary equipment time of power supply system | |
| CN106451763B (en) | A kind of intelligent substation station level bus network system without global synchronization system | |
| US9647783B2 (en) | Automatic checking method for clock synchronization and specialized apparatus thereof | |
| CN203086488U (en) | Electric power time synchronization system based on big dipper clock | |
| CN102142863A (en) | Data reporting method and system | |
| CN101951024B (en) | Digital data acquisition device | |
| CN110943881B (en) | Test system and method based on-site protection factory debugging | |
| CN102593955B (en) | Comprehensive intelligent time frequency testing system and testing method | |
| CN203465541U (en) | Beidou/GPS double-time service source-based failure time recording device | |
| CN103746304B (en) | The remodeling method of Intelligent transformer station | |
| CN203455626U (en) | Time service system guaranteeing full-grid time synchronization of power grid | |
| KR101174254B1 (en) | Meter Data Management System for Smart Grid | |
| CN201812155U (en) | Satellite synchronous slave clock device | |
| CN109283829B (en) | Control method of regional clock system | |
| CN102591195A (en) | Mutual inspection method for mutually backup double clock, and time comparing device | |
| CN103743967A (en) | Remote test system and method for substation high frequency protection channel state | |
| CN106849346B (en) | A kind of system for testing power distribution automation equipment time adjustment function and timekeeping performance | |
| CN202615137U (en) | Time service unifying device of electrical power system | |
| CN103873178A (en) | Concentrated inspection method for timing error of wide-area time synchronization system | |
| CN201413572Y (en) | Electric power system monitoring device | |
| CN202353575U (en) | Time synchronization real-time monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20140702 |
|
| EXPY | Termination of patent right or utility model |