Clock leap second processing method and system thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A processing method and processing system technology, applied in the field of clock leap second processing method and its system, can solve the problems of manpower consumption, insufficient intelligence, system paralysis, etc.
Active Publication Date: 2014-05-21
GUANGDONG DAPU TELECOM TECH CO LTD
View PDF3 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0005] In order to cope with the occurrence of leap seconds, there are currently two solutions. The first common solution is to set the leap second as a fixed value constant. When the leap second is adjusted in this solution, there will be a problem of jumping seconds, and the obtained TOD (Time of Data , real-time time constant) message is wrong, the leap second value must be changed again, and the latest program can be downloaded to use. The disadvantage is that the hardware cannot work normally for a period of time, and even the entire system will be paralyzed in severe cases; the second common solution: manual push Leap second, this solution reserves an interface when designing the hardware, so that when the leap second is adjusted, the hardware can be manually informed of the leap second value, so that there is no need to re-download the latest program. The disadvantage is that this method is not intelligent enough. It takes manpower to adjust every leap second
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0030] Figure 1 It is a method flowchart of the clock leap second processing method described in this embodiment, as Figure 1 As shown, the clock leap second processing method described in this embodiment includes:
[0031] S101, the system restarts;
[0032] S102, judging whether the receiver obtains UTC time, if so, then execute step S106, otherwise repeat this step;
[0033] Obtaining the UTC time by the receiver through the timing satellite signal is a continuous process, and there is no sequence with step S103.
[0034] After the system is restarted, the receiver continues to work and read the timing satellite signal. After the system is successfully started and enters the normal operation state, if the receiver fails to receive the timing satellite signal, it will send a message to the system to tell the system that the timing satellite signal is lost. The system continues to time UTC temporarily through the high-stable crystal oscillator frequency division 1PPS timin...
Embodiment 2
[0059] Figure II It is a schematic structural diagram of the clock leap second processing system described in this embodiment, as Figure II As shown, the clock leap second processing system includes a leap second value storage module 201, an initialization module 202, a normal operation module 203, and a leap second interruption processing module 204. Further, the system can also include a timing satellite signal loss response module 205.
[0060] The functions and implementation methods of each module are introduced one by one as follows:
[0061] Leap second value storage module 201: used to use memory to store leap second value, the data will not be lost when the memory is powered off, the leap second value is the integer number of seconds difference between UTC time and GPS time, and the leap second value is initially determined by The receiver obtains through the timing satellite signal; it is used to receive the new leap second value sent by the leap second interrupt ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses a clock leap second processing method and a system of the clock leap second processing. The clock leap second processing method includes that a leap second value is stored and is initially obtained by a receiver. When the system is under normal operating condition, universal time coordinated (UTC) time is obtained through the receiver in real time. Global position system (GPS) time is obtained according to high-stability constant-temperature oscillator fractional frequency in a timing mode. When the system is reset, the UTC time is obtained through the receiver in real time. The current UTC time pluses the leap second value to be as the GPS time. The GPS time is continued to be timed according to the high-stability constant-temperature oscillator fractional frequency. And the system gets in the normal operating condition. When the system is in the normal operating condition, interruption message of a notice of adjusting the leap second is received, the UTC time changes in a smooth transition mode, and a new leap second value of the interrupt message is written in the storage. According to the clock leap second processing method and the system of the clock leap second processing, a smooth transition of technical objective directive (TOD) message in the process of the leap second changing can be achieved, the time is totally identical to the time when the leap second is adjusted, jump second do the GPS time can not occur, stable and normal operation of the system in the process of the leap second being adjusted is guaranteed.
Description
technical field [0001] The invention relates to the technical field of time synchronization of time service, in particular to a clock leap second processing method and system thereof. Background technique [0002] Due to the slowing down of the earth's rotation speed, the error between atomic time and universal time is greater than 0.9 seconds. According to the rotation speed of the earth, the International Bureau of Weights and Measures will regularly add one second to the coordinated universal time at the end of the year, in the middle of the year or at the end of the season, so that it can be compared with Earth's rotation is synchronous. This won't make us drift toward sunsets happening in the morning, but it could cause problems in computer systems because they need to add an extra second to the clock, but the system itself isn't flexible enough to handle the extra second seconds. [0003] The high resolution timer is a subsystem used when an application is "sleeping"...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more