High-precision synchronous data transmission method and device for Ethernet serial port collaborative vibration monitoring system
A monitoring system, Ethernet technology, applied in the direction of synchronization devices, transmission systems, digital transmission systems, etc., can solve problems such as high price
Inactive Publication Date: 2020-06-05
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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Problems solved by technology
The network time server has high timing accuracy and can automatically realize Ethernet synchronization, but the price is relatively expensive. At the same time, the hardware requirements of the network nodes in the distributed system are strict, and a dedicated network module that supports the network time synchronization protocol is required to complete.
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[0028]The high-precision data transmission method of the vibration monitoring system that uses Ethernet and RS-232 serial ports to work together in the present invention is to combine the central station (Central Station, CS for short) of the vibration monitoring system and several distributed monitoring stations (Monitors) scattered in the monitoring area. Station, referred to as MS) uses Ethernet to form a local area network; Ethernet is responsible for the network transmission of sensor vibration data, and at the same time uses serial port RS-232 to connect each distributed monitoring station and central station, and serial port RS-232 is responsible for the seconds output by the GPS module The pulse signal is transmitted to each distributed vibration monitoring station in real time. The distributed monitoring station samples the vibration data and GPS pulse signal and sends them to the central station through Ethernet. The central station then performs data processing accord...
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The present invention relates to a vibration monitoring system high-precision synchronization data transmission method and device through adoption of cooperative work of the Ethernet and a RS-232 serial port cooperative work. In order to solve the problem that the application environment is narrow in the prior art, the center station (CS) of the vibration monitoring system and a plurality of distribution monitoring stations (MS) distributed in a monitoring area form the local area network in the Ethernet mode; the Ethernet is responsible for the network transmission of the sensor vibration data, the serial port RS-232 is employed to connect each distributed monitoring station and the center station, the serial port RS-232 is responsible for transmitting the second pulse signals outputted by the GPS module to each distributed vibration monitoring station in real time, the distributed monitoring station sends the vibration data and GPS pulse signals after sampling to the center station in the Ethernet mode; and the center station performs data processing according to the pulse signals to realize the synchronization of all the distributed monitoring station vibration data and finally perform vibration position solution according to the data after synchronization. The application environment is wide and the cost is low.
Description
technical field [0001] The invention relates to a vibration monitoring synchronous data transmission method, in particular to a high-precision synchronous data transmission method and device for a vibration monitoring system coordinated by an Ethernet serial port. [0002] technical background [0003] The vibration monitoring system is widely used in many fields such as monitoring of geological disasters, engineering construction and industrial mineral production. Different from other types of monitoring systems, the time synchronization problem of the vibration monitoring system is a necessary condition to ensure the accuracy and reliability of the system. The calculated vibration point position and energy magnitude are correct. There are many synchronization methods, including GPS timing, atomic clock timing, network time server and so on. [0004] GPS timing is the most commonly used technical means. It is necessary to install a GPS timing module on each distributed mon...
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IPC IPC(8): H04L12/40H04L12/28H04L29/08H04L7/00
Inventor 徐善辉罗维炳张学彬
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI