초록 ▼

An arrangement for the deployment of seismic sensor units, such as sensor nodes (24), on the seabed includes a frame structure that is adapted to carry a container (11) for containment of a data registration unit and additional auxiliary equipment for the sensor node. The arrangement has supports (1

An arrangement for the deployment of seismic sensor units, such as sensor nodes (24), on the seabed includes a frame structure that is adapted to carry a container (11) for containment of a data registration unit and additional auxiliary equipment for the sensor node. The arrangement has supports (12, 13) that can rest against the seabed, and an attachment means (17) for a lifting hook, for raising and lowering by means of a crane. There is a holder (20) for the sensor node (24) that can be positioned on the seabed and which is connected to the container through a signal cable (32). A releasable attachment means (22) holds the sensor node (24) in a downwardly extending position with respect to the supports (12, 13). The attachment means (22) is located with a horizontal distance from the container (11). A latch mechanism (25) for the attachment means (22) is adapted to release the sensor node (24).

대표청구항 ▼

We claim: 1. An apparatus comprising: a sensor node (24) having a main body; a container (11; 33) that contains a data registration unit that is remotely controlled for registration of seismic data collected by the sensor node (24); a frame structure (12, 13; 34) that carries the container and that

We claim: 1. An apparatus comprising: a sensor node (24) having a main body; a container (11; 33) that contains a data registration unit that is remotely controlled for registration of seismic data collected by the sensor node (24); a frame structure (12, 13; 34) that carries the container and that rests on the seabed; a lifting device (17; 51) that lifts and lowers the frame structure; a signal cable (32) that connects the sensor node to the container; a releasable fastener (22; 47, 48) that supports the sensor node (24) to the frame structure and releases the sensor node (24) after at least a portion of the main body of the sensor node is inserted into the seabed at a horizontal distance from the container (11; 33); a pair of carrier arms (20, 27) extending from opposite sides of the container (11) wherein each carrier arm has a support plate (29, 28) that contacts the seabed only when the sensor node (24) is inserted into the seabed; wherein the sensor node (24) is positioned juxtaposed to one support plate (29); and, wherein the other support plate (28) has an area-moment about a main axis that is approximately the sum of the area-moments of the support plate (29) and the sensor node (24). 2. The apparatus according to claim 1 wherein the releasable fastener comprises a latch pin (25) that is moveable with respect to the carrier arms and received in a carrier bracket (23) mounted to the sensor node (24). 3. The apparatus according to claim 1 wherein the releasable fastener comprises a pair of claws (47, 48). 4. The apparatus according to claim 1 wherein the releasable fastener (22; 47, 48) positions the sensor node (24) into the seabed at a fixed horizontal distance from the container (11; 33). 5. An apparatus comprising: a sensor node (24) having a main body; a container (11; 33) that contains a data registration unit that is remotely controlled for registration of seismic data collected by the sensor node (24); a frame structure (12, 13; 34) that carries the container and that rests on the seabed; a lifting device (17; 51) that lifts and lowers the frame structure; a signal cable (32) that connects the sensor node to the container; and, a releasable fastener (22; 47, 48) that: a) supports the sensor node (24) to the frame structure at a fixed location with respect to the frame structure as the frame structure is lowered toward the seabed; b) maintains the sensor node (24) at the fixed location as at least a portion of the main body of the sensor node is inserted into the seabed at a horizontal distance from the container (11; 33); and, c) releases the sensor node (24) after the at least a portion of the main body of the sensor node is inserted into the seabed. 6. The apparatus according to claim 5 wherein the releasable fastener (22) is arranged on a carrier arm (20), which extends laterally out from the container (11). 7. The apparatus according to claim 5 wherein the releasable fastener comprises a latch pin (25) that is moveable with respect to the carrier arm and received in a carrier bracket (23) mounted to the sensor node (24). 8. The apparatus according to claim 5 wherein the releasable fastener comprises a pair of claws (47, 48). 9. The apparatus according to claim 5 wherein the releasable fastener (22; 47, 48) positions the sensor node (24) into the seabed at a fixed horizontal distance from the container (11; 33).