Abstract: A network connectable device that is configured to send to a service-state monitor via a network connection service-monitoring protocol information that defines at least one operational parameter for a service-monitoring protocol that comprises sending to the service-state monitor a plurality of service-state messages that each indicate a service-state of the network connectable device when so sent. The network connectable device is configured to send to the service-state monitor via the network connection the plurality of service-state messages.

Abstract: A network connectable device that is configured to send to a service-state monitor via a network connection service-monitoring protocol information that defines at least one operational parameter for a service-monitoring protocol that comprises sending to the service-state monitor a plurality of service-state messages that each indicate a service-state of the network connectable device when so sent. The network connectable device is configured to send to the service-state monitor via the network connection the plurality of service-state messages.

Abstract: The invention provides a fastener assembly suitable for joining a first element such as a circuit board to a second element such as a casing or another circuit board. The fastener assembly includes a first component which has a pin and a second component which includes a cavity for receiving at least part of the pin. In one aspect, at least part of the second component capable of being received within a bore in the first element. Either the first component or the second component is made of material which can change from a first shape to a second shape at a particular temperature. The pin of the first component is adapted to be locked into the cavity of the second component when the second shape is attained, through interaction of the material with the cavity, without deformation of the pin.

Abstract: Quick release bolt assembly included shank and head of larger cross-section than that of shank. The screw thread of shank is adapted to rotatably engage with a complementary screw thread in a nut. Disengagement means are adapted in use to disengage the head or the nut without rotation of the nut or shank. The disengagement means includes a material such as shape memory alloy or epoxy resin, adapted to change form to facilitate engagement when activated. Activation may take place by a direct power supply or remotely by a radio frequency, magnetic, ultrasonic or infra red signal. Bolt can be used for anchoring seat belts. Computer systems and methods for the identification of a target, including enquiring as to the status of the target and having means to command the target to change the status are also disclosed and claimed.

Abstract: In the first aspect, the invention provides a fastener which includes a fastening element and an actuating means attached to the fastening element. The fastening element has a flexible beam and an engagement means. The actuating means includes a material, such as shape memory alloy, which contracts when activated. When the material is contracted, the beam moves between an engagement position and a disengagement position. In a second aspect, the invention provides a fastener for use in a network of fasteners. The fastener has address means which serve to distinguish the fastener from the other fasteners in the network. The fastener may be the same as the fastener in the first aspect of the invention, or a different fastener. A network or system of such fasteners is also provided.