Device for localizing a transmitter unit
First Claim
1. A device for localising a transmitter unit (2), comprising a base unit (1) and at least one such transmitter unit (2), wherein said transmitter unit (2) comprises means (4), which enable attachment of the transmitter unit (2) to an object (3), and a transmitter member (6), which is arranged to transmit a signal having a determined frequency content, wherein the base unit (1) is arranged to receive said signal and comprises at least two antennas (7), which are positioned on a relatively small distance (a) from each other and each arranged to sense such signal, and wherein the base unit (1) comprises a processing member (9), which is arranged to calculate at least the direction to said transmitter unit (2) by means of the signal sensed by the antennas (7), characterised in that said transmitter unit (2) comprises a receiver member (17), the base unit (1) comprises a transmitter member (18), and the transmitter member (18) of the base unit (1) and the receiver member (17) of the transmitter unit (2) are arranged to communicate by means of a protocol.
2 Assignments
0 Petitions
Accused Products
Abstract
A device for localizing a transmitter unit. The device includes a base unit and at least one transmitter. The transmitter unit includes an attachment operable to attach the transmitter unit to an object. A transmitter member is arranged to transmit a signal having a determined frequency content. The base unit is arranged to receive the signal from the transmitter member and includes at least two antennas that are positioned a relatively small distance from each other and are arranged to sense the signal. The base unit includes a processing member that is arranged to calculate at least the direction to the transmitter unit utilizing the signal sensed by the antennas. The transmitter unit includes a receiver member. The base unit includes a transmitter member. The transmitter member of the base unit and the receiver member of the transmitter unit are arranged to communicate with a protocol.
12 Citations
13 Claims
- 1. A device for localising a transmitter unit (2), comprising a base unit (1) and at least one such transmitter unit (2), wherein said transmitter unit (2) comprises means (4), which enable attachment of the transmitter unit (2) to an object (3), and a transmitter member (6), which is arranged to transmit a signal having a determined frequency content, wherein the base unit (1) is arranged to receive said signal and comprises at least two antennas (7), which are positioned on a relatively small distance (a) from each other and each arranged to sense such signal, and wherein the base unit (1) comprises a processing member (9), which is arranged to calculate at least the direction to said transmitter unit (2) by means of the signal sensed by the antennas (7), characterised in that said transmitter unit (2) comprises a receiver member (17), the base unit (1) comprises a transmitter member (18), and the transmitter member (18) of the base unit (1) and the receiver member (17) of the transmitter unit (2) are arranged to communicate by means of a protocol.
Specification