초록 ▼

A data acquisition system has a central station connected to a plurality of nodes over a network. Each node is connected to receive signals from one or more sensors ad each is configured to have substantially the same transmission delay to said central station. The central station is configured to n

A data acquisition system has a central station connected to a plurality of nodes over a network. Each node is connected to receive signals from one or more sensors ad each is configured to have substantially the same transmission delay to said central station. The central station is configured to notify all nodes of an event time at which a data event, such as a seismic shot, occurred.

대표청구항 ▼

1. A data acquisition system comprising:a. a central station connected to a network; b. a plurality of remote station units connected to said network and connected to receive signals from one or more sensors each remote station unit configured to time synchronize the signals for transmission to said

1. A data acquisition system comprising:a. a central station connected to a network; b. a plurality of remote station units connected to said network and connected to receive signals from one or more sensors each remote station unit configured to time synchronize the signals for transmission to said central station using a polyphase filter; c. wherein said polyphase filter determines a timing adjustment based on a command from the central station specifying a time value for an event.