Opto-electronic sensor array and a method to operate an opto-electronic sensor array
First Claim
1. A method of operating an opto-electronic sensor array comprising:
- directing a plurality of sequential operating light pulses into a monitored region during an activation interval;
receiving operating light pulses reflected off an object arranged in the monitored region on a spatially resolving receiver unit having a plurality of light-sensitive sensors;
determining a light intensity of the reflected operating light pulses and synchronously storing the light intensities during the activation interval while the operating light pulses are directed into the monitored region;
following each activation interval, sequentially transmitting subsets each comprising a plurality of light intensity values to a parallel processor having a corresponding plurality of parallel inputs; and
parallel processing the plurality of light intensity values of each subset.
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Abstract
A method is described for the operation of an opto-electronic sensor array, in which a plurality of sequential operating light pulses are emitted into a monitored region; the operating light pulses reflected from an object arranged in the monitored region are received by a spatially resolving receiver unit with a plurality of light sensitive sensors; the light intensity of the respectively received reflected operating light pulses is detected and stored in each case during an activation interval synchronously with the emission of the operating light pulses for each sensor; and after each activation interval, in sequential transmission steps, the light intensities stored for the sensors are transmitted to a parallel processor having a plurality of parallel signal inputs for the parallel signal processing, with the transmission in each case taking place for a plurality of sensors simultaneously in each transmission step. Furthermore, a sensor array for the carrying out of the method is described.
11 Citations
24 Claims
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1. A method of operating an opto-electronic sensor array comprising:
directing a plurality of sequential operating light pulses into a monitored region during an activation interval;
receiving operating light pulses reflected off an object arranged in the monitored region on a spatially resolving receiver unit having a plurality of light-sensitive sensors;
determining a light intensity of the reflected operating light pulses and synchronously storing the light intensities during the activation interval while the operating light pulses are directed into the monitored region;
following each activation interval, sequentially transmitting subsets each comprising a plurality of light intensity values to a parallel processor having a corresponding plurality of parallel inputs; and
parallel processing the plurality of light intensity values of each subset.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An opto-electronic sensor array for monitoring a region comprising a light transmitter for directing a plurality of sequential operating light pulses into the monitored region during an activation interval, a spatially resolving receiver unit having a multiplicity of light-sensitive sensors for receiving operating light pulses reflected off an object in the monitored region, a synchronization unit for synchronizing the operating light pulses with the activation interval and activating the sensors to detect a light intensity value of the reflected operating light pulses, a memory unit for storing the detected light intensity values for each sensor during the activation interval;
- and a parallel processor including a plurality of signal inputs corresponding to a plurality of outputs of the receiver unit for sequentially receiving light intensity value subsets each comprising a corresponding plurality of light intensity values for parallel processing the corresponding plurality of light intensity values of each subset.
- View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
Specification