Design And Implementation Of Data Transmission System Of Seismic Stations

In recent years, with the development of earthquake observation technology, Chinaseismological bureau has building, rebuilding of a large number of all kinds ofearthquake observation stations, mostly for unattended. The original seismicobservatory is using data transmission such as DDN and ADSL line. DDN and ADSL,the construction, operation cost is higher, especially in some remote seismic observatory,Cable transmission line is hard to cover, even coverage stations, maintenanceinconvenience, so the line failure rate is higher. After “512Wenchuan earthquake” thegovernment of Chengdu invested heavily to make many more seismic monitoringstations, a new precursor data observation network, a new monitoring earthquakeobservation network and earthquake emergency command system. Because of theWenchuan Earthquake, the government summarizes the experiences and lessons, andchange the original cable transmission way to the wireless transmission mode. Chengduearthquake monitoring network monitoring and network transmission ability, in therelevant departments Fast response time and the three important message to reduce asmuch as possible after a disaster under the unified deployment of within the jurisdictionof Chengdu city bureau to start preparing for mitigation of earthquake disasters networkrenovation and upgrade, change the original cable transmission way to the wirelesstransmission mode.We compare several transmission typically used in the domestic data transmission,and compare the respective advantages and disadvantages of the several transmissionmode which provides an effective data support for us to select the optimal experimentalprogram. let us more intuitive understanding of the advantages and disadvantages of thevarious transmission technologies, and ultimately select a data transmission systemsuitable for the actual situation of our bureau to carry out the subject test.First,and then through a combination of text and illustration, we illustrate theoverall framework of the test data transmission system of seismic stations, composition,and network structure.In particular, we use the the program encoding process show datatransfer software module.We then explain several important aspects of the software configuration, the first is the system configuration of the station side, followed by theconfiguration of the data transmission system.The core of the data transmission systemis the system router configuration, and Network Center side system configuration.Ineach of the set of system configuration is completed, check whether the display statusafter confirmed its connected normally.Finally, we integrated test system network, the effect, the run rate, monitoring dataand other data.The data recorded in this experiment transformed into a wirelesstransmission station received data and the original wired transmission data receivedfrom various periods analyzed and compared to verify the stability of the wirelesstransmission network isof data availability, authenticity, reliability of this experimentprovide the scientific practical basis.