Relay communication delay time correction method and system
A technology of delay time and relay communication, which is applied in the field of communication, can solve problems such as the decrease of node synchronization measurement accuracy, and achieve the effects of reducing delay, improving accuracy, strong scalability and flexibility
Inactive Publication Date: 2020-05-22
CHINA SOUTH IND GRP AUTOMATION RES INST
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The technical problem to be solved by the present invention is the problem that the signal broadcast by the data center is delayed after being forwarded by a multi-stage relay terminal, which leads to a decrease in the accuracy of the synchronization measurement of some nodes in the system. The purpose is to provide a method for correcting the delay time of relay communication and system to solve the above problems
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0056] A method for correcting relay communication delay time, comprising:
[0057] Add the delay time frame and the relay level frame to the timing signaling sent by the data processing center to obtain the timing signal;
[0058] Send the timing signal and working mode signal to the wireless measurement terminal;
[0059] Using the working mode signal to switch the communication mode of the wireless telemetry chip in the wireless measurement terminal to obtain the working mode corresponding to the working mode signal;
[0060] In the corresponding working mode, send the transmission completion flag signal TxDone and the reception completion flag signal RxDone of the wireless telemetry chip to the working module corresponding to the working mode;
[0061] Timing measurement of the received sending completion flag signal TxDone and reception completion flag signal RxDone to obtain the delay time;
[0062] Input the delay time and the series of the current wireless measuremen...
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 relay communication delay time correction method and system, and the method comprises the steps: adding a delay time frame and a relay stage number frame to a time service signaling transmitted by a data processing center, obtaining a time service signal, and transmitting the time service signal and a working mode signal; timing and measuring the received sending completion mark signal TxDone and the received receiving completion mark signal RxDone to obtain delay time; inputting the delay time and the stage number of the current wireless measurement terminal into a delay time frame and a relay stage number frame of a time service signal; taking the time obtained by the first-level wireless measurement terminal with the maximum delay time for timing measurement ofthe receiving completion mark signal RxDone as the synchronization time; calculating the delay time required to be added when the time service signal received by each stage of wireless measurement terminal reaches the synchronization time by using the delay time frame and the relay stage number frame in the time service signal received by each stage of wireless measurement terminal, and obtainingthe corrected synchronization instruction signal, so that the synchronization measurement precision is improved.
Description
technical field [0001] The invention relates to the field of communication, in particular to a method and system for correcting relay communication delay time. Background technique [0002] In the existing military field, for example, in the system for measuring the seismic wave and radiation generated after the explosion of the nuclear bomb, it is necessary to arrange multiple measurement nodes to measure the seismic wave, radiation and other signals synchronously. Therefore, in the measurement system, the data center The transmitted signal has multi-level relay forwarding between measurement nodes at different locations. There is a certain delay in the transmission process of the measurement signal, and the more relay terminals pass by due to the distance, the more the measurement signal will be. The longer the delay, the lower the synchronous measurement accuracy of the system's internal measurement nodes, and the existing multi-level relay system does not correct the tim...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06G08C17/02H04B7/14
CPCG08C17/02H04B7/14H04J3/0638
Inventor 张自圃邵雨新陈航卢峥李坤贺陈刚周凯吴昌昊李宸极陈羲聪
Owner CHINA SOUTH IND GRP AUTOMATION RES INST