Method for operating a contactless detection device for monitoring at least one monitoring region, detection device, and vehicle having at least one detection device
A method for operating a contactlessly operating detection device for monitoring at least one monitoring area is described. In the method, transmission signals are successively sent into at least one monitoring area. Transmitted signals which are reflected in the monitoring area are received with the detection device, brought into a form to be processed with an evaluation device, and processed as received signals. Some of the signals are allocated to at least one signal block. Information about the monitoring area is determined from some of the received signals. Some of the received signals that follow one another in time are allocated to at least one received signal block at the receiving end of the detection device, independent of any allocations of transmission signals at the transmitting end of the detection device. Some of the received signals of the received signal blocks are subjected to signal processing in blocks.
1 . A method for operating a contactlessly operating transceiver for monitoring at least one monitoring area, comprising:
successively transmitting a multiplicity of transmission signals into the at least one monitoring area;
receiving transmission signals reflected in the at least one monitoring area using the transceiver, and processing the received transmission signals using a signal processor to obtain received signals,
wherein the received signals comprise electrical received signals generated by converting reflected transmission signals at a receiving end of the transceiver;
allocating at least some of the received signals to a plurality of received signal blocks,
wherein at least some temporally consecutive received signals are allocated to a first received signal block of the plurality of received signal blocks at the receiving end of the transceiver, the allocation being independent of any allocations of the transmission signals at a transmitting end of the transceiver,
wherein at least one received signal is allocated to at least two temporally overlapping received signal blocks of the plurality of received signal blocks,
wherein a second received signal block of the plurality of received signal blocks is allocated at least some of the received signals that were allocated to the first received signal block, and
wherein the first received signal block has a temporal length that is shorter than the temporal length of the second received signal block; and
ascertaining information about the at least one monitoring area from at least some of the received signals by subjecting at least some of the received signals of at least some of the plurality of received signal blocks independently and block by block to signal processing that is used to ascertain information about the at least one monitoring area.
2 . The method as claimed in claim 1 , wherein at least one received signal is allocated to a time gap between at least two temporally consecutive received signal blocks of the plurality of received signal blocks.
3 . The method as claimed in claim 1 , wherein, based on a predetermined uniform allocation pattern, a first plurality of received signal blocks of the plurality of received signal blocks are allocated a same number of received signals and the first plurality of received signal blocks are assigned a same temporal length, and wherein a second plurality of received signal blocks of the plurality of received signal blocks are allocated a different number of received signals and the second plurality of received signal blocks are assigned different temporal lengths.
4 . The method as claimed in claim 1 , wherein, based on a predetermined accurate allocation pattern, a totality of received signals that are in a time window of at least one received signal block of the plurality of received signal blocks are allocated to the at least one received signal block completely, and wherein at least some of the totality of received signals that are in the time window of the at least one received signal block are omitted during allocation to the at least one received signal block.
5 . The method as claimed in claim 1 , wherein at least some of the transmission signals are transmitted in the form of electromagnetic signals.
6 . The method as claimed in claim 1 , wherein the transmission signals comprise identical transmission signals and nonidentical transmission signals, and wherein, based on one or more predetermined transmission patterns, the transmission signals are transmitted regularly and irregularly over time.
7 . The method as claimed in claim 1 , wherein at least some of the received signals corresponding to the plurality of received signal blocks are subjected block by block to at least one Fourier transformation.
8 . The method as claimed in claim 1 , wherein the transceiver is used to monitor an interior of a vehicle and/or the transceiver is used to detect surroundings of a vehicle.
9 . The method as claimed in claim 1 , wherein at least some of the ascertained information about the monitoring area is transferred to a control device of a vehicle with which the transceiver is associated.
10 . A contactlessly operating transceiver for monitoring the at least one monitoring area, comprising:
at least one transmitter for successively transmitting the multiplicity of transmission signals into the at least one monitoring area;
at least one receiver for receiving the transmission signals reflected in the at least one monitoring area, and for converting the received transmission signals into the received signals that can be processed using signal converter; and
at least one signal processor for allocating at least some of the received signals to at least one signal block and for ascertaining information about the at least one monitoring area from at least some of the received signals,
wherein the transceiver comprises means for carrying out the method as claimed claim 1 .
11 . The transceiver as claimed in claim 10 , wherein:
the at least one transmitter is configured to transmit electromagnetic transmission signals, and
the at least one receiver is configured to receive and convert reflected electromagnetic transmission signals.
12 . A vehicle having at least one contactlessly operating transceiver for monitoring a monitoring area for objects, the at least one transceiver comprising:
at least one transmitter for successively transmitting the multiplicity of transmission signals into the at least one monitoring area;
at least one receiver for receiving the transmission signals reflected in the at least one monitoring area and for converting the received transmission signals into the received signals processed using a signal converter, and
at least one signal processor for allocating at least some of the received signals to at least one signal block and for ascertaining information about the at least one monitoring area from at least some of the received signals,
wherein the transceiver comprises means for carrying out the method as claimed claim 1 .
13 . The vehicle as claimed in claim 12 , wherein at least one transceiver is a surroundings transceiver and/or the at least one transceiver is an interior transceiver.