Tunnel monitoring sensor
AssigneeSick AG
InventorsAndreas BONISCH, Jurgen CONVENT
Life of this patent
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Abstract
A tunnel monitoring sensor for monitoring environmental conditions in a tunnel comprises a first sensor module which outputs an obscuration signal, a second sensor module which outputs a first gas concentration signal, a common housing for the first and second sensor modules and an electronic logic unit which is preferably accommodated in the housing, which receives the obscuration signal and the gas concentration signal and which outputs a combined environmental condition signal on the basis of a link of the obscuration signal and of the gas concentration signal.
Claims17
A tunnel monitoring sensor (11, 11′) for monitoring environmental conditions in a tunnel having
- a first sensor module (22) which outputs an obscuration signal (23);
- a second sensor module (25) which outputs a first gas concentration signal (27);
- a common housing (12) for the first and second sensor modules (22, 25);
- and
- an electronic logic unit (31, 31′) which receives the obscuration signal (23) and the gas concentration signal (27) and which outputs a combined environmental condition signal (33) on the basis of a link of the obscuration signal (23) and the gas concentration signal (27).
A tunnel monitoring method for monitoring environmental conditions in a tunnel, comprising the steps of generating an obscuration signal (23) by means of a first sensor module (22) arranged in a housing (12);
- generating a first gas concentration signal (27) by means of a second sensor module (25) arranged in the housing (12);
- linking the obscuration signal (23) and the gas concentration signal (27) to one another;
- and
- generating a combined environmental condition signal (33) on the basis of the link.
Dependencies are inferred from the claim text.