Attaching a sensor to a WSAN

摘要

Methods and arrangements in a WSAN Gateway (15), a WSAN Manager (16) and a WSAN sensor for attaching an additional sensor (39) to a WSAN (12) comprising at least one existing WSAN sensor (33). The additional sensor emits an indication of its private identity after insertion in the WSAN, and the indication is received by the existing sensors in the WSAN and forwarded to the WSAN Gateway, after an eligibility check. Thereafter, the WSAN Gateway sends an authentication request to the WSAN Manager, which computes an authentication vector and transmits to the WSAN Gateway for the authentication of the new sensor.

主权项

1. A method, performed by an existing wireless or wired sensor and actuator network (WSAN) sensor, for attaching an additional sensor to a WSAN, comprising:
receiving and storing, by the WSAN sensor, an indication of a private identity of a potential additional sensor from a WSAN gateway; receiving, by the WSAN sensor, from an additional sensor, a beacon comprising an indication of a private identity of the additional sensor when the additional sensor has been inserted in the WSAN; determining, by the WSAN sensor, whether the additional sensor is eligible for attachment to the WSAN by comparing the indication of the private identity received in the beacon with the stored indication of the private identity of the potential additional sensor; and sending, by the WSAN sensor, a notification of the insertion of an eligible additional sensor to the WSAN gateway, the notification comprising the indication of the private identity of the inserted eligible additional sensor.