Optoelectronic distance measuring device
First Claim
1. An optoelectronic distance measuring device, in particular a laser scanner, comprising at least one transmitter unit for the transmission of pulsed electromagnetic radiation;
- at least one receiver unit (15, 16) associated with the transmitter unit for the reception of the reflected radiation; and
an evaluation device (30) for the determination of the distance of objects reflecting the transmitted radiation in accordance with a pulse transit time measuring process, wherein the evaluation device (30) includes at least two parallel transit time measuring channels (13, 14) and is made such that of two successively incoming received pulses (3, 3′
, 4, 4′
) for the same transmitted pulse (2, 2′
), in particular successively incoming pulses on the same signal line, the earlier received pulse (3, 3′
) can be evaluated in the one measuring channel (13) and the later received pulse (4, 4′
) can be evaluated in the other measuring channel (14), at least with respect to the transit time.
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Accused Products
Abstract
The invention relates to an optoelectronic distance measuring device, in particular to a laser scanner, comprising at least one transmitter unit for the transmission of pulsed electromagnetic radiation, at least one receiver unit associated with the transmitter unit for the reception of the reflected radiation and an evaluation device for the determination of the distance of the objects reflecting the transmitted radiation in accordance with a pulse transit time measuring process, with the evaluation device including at least two parallel transit time measuring channels and being made such that of two received pulses for the same transmitted pulse, in particular two successively arriving pulses on the same signal line, the earlier received pulse can be evaluated in the one measuring channel and the later received pulse can be evaluated in the other measuring channel, at least with respect to the transit time.
35 Citations
8 Claims
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1. An optoelectronic distance measuring device, in particular a laser scanner, comprising
at least one transmitter unit for the transmission of pulsed electromagnetic radiation; -
at least one receiver unit (15, 16) associated with the transmitter unit for the reception of the reflected radiation; and
an evaluation device (30) for the determination of the distance of objects reflecting the transmitted radiation in accordance with a pulse transit time measuring process, wherein the evaluation device (30) includes at least two parallel transit time measuring channels (13, 14) and is made such that of two successively incoming received pulses (3, 3′
, 4, 4′
) for the same transmitted pulse (2, 2′
), in particular successively incoming pulses on the same signal line, the earlier received pulse (3, 3′
) can be evaluated in the one measuring channel (13) and the later received pulse (4, 4′
) can be evaluated in the other measuring channel (14), at least with respect to the transit time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
Specification