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1. (WO2018224234) OPERATING METHOD AND CONTROL UNIT FOR A LIDAR SYSTEM, LIDAR SYSTEM, AND WORK MACHINE
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Pub. No.: WO/2018/224234 International Application No.: PCT/EP2018/061962
Publication Date: 13.12.2018 International Filing Date: 09.05.2018
IPC:
G01S 17/10 (2006.01) ,G01S 17/93 (2006.01) ,G01S 7/48 (2006.01) ,G01S 7/486 (2006.01)
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17
Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02
Systems using the reflection of electromagnetic waves other than radio waves
06
Systems determining position data of a target
08
for measuring distance only
10
using transmission of interrupted pulse-modulated waves
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17
Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
88
Lidar systems, specially adapted for specific applications
93
for anti-collision purposes
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7
Details of systems according to groups G01S13/, G01S15/, G01S17/127
48
of systems according to group G01S17/58
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7
Details of systems according to groups G01S13/, G01S15/, G01S17/127
48
of systems according to group G01S17/58
483
Details of pulse systems
486
Receivers
Applicants:
ROBERT BOSCH GMBH [DE/DE]; Postfach 30 02 20 70442 Stuttgart, DE
Inventors:
SCHNITZER, Reiner; DE
HIPP, Tobias; DE
Priority Data:
10 2017 209 643.808.06.2017DE
Title (EN) OPERATING METHOD AND CONTROL UNIT FOR A LIDAR SYSTEM, LIDAR SYSTEM, AND WORK MACHINE
(FR) PROCÉDÉ DE FONCTIONNEMENT ET UNITÉ DE COMMANDE D’UN SYSTÈME LIDAR, SYSTÈME LIDAR ET DISPOSITIF DE TRAVAIL
(DE) BETRIEBSVERFAHREN UND STEUEREINHEIT FÜR EIN LIDAR-SYSTEM, LIDAR-SYSTEM UND ARBEITSVORRICHTUNG
Abstract:
(EN) The invention relates to an operating method for a LiDAR system (1) which can be operated in a pulse sequence-coded manner and which is designed with an SPAD-based detector element (22), wherein (i) a dead time (ttot) of the SPAD-based detector element (22) is detected, and (ii) a minimum time difference (tmin) between transmission pulses (57-1,..., 57-4) of primary light (57) to be transmitted directly or indirectly following one another is measured during the transmission operation of the LiDAR system (1) such that the time difference at least approximately corresponds to the dead time (ttot).
(FR) La présente invention concerne un procédé de fonctionnement d’un système LiDAR (1) pouvant fonctionner en séquence de codage pulsée et conçu avec un élément détecteur (22) basé sur SPAD, procédé dans lequel (i) un temps mort (ttot) de l’élément détecteur (22) basé sur SPAD est détecté et (ii) en mode d’émission du système LiDAR (1), un intervalle de temps minimal (tmin) d’impulsions d’émission (57-1, ..., 57-4) de lumière primaire (57) à émettre directement ou immédiatement de manière successive est dimensionné de manière à correspondre au moins approximativement au temps mort (ttot).
(DE) Die vorliegende Erfindung betrifft ein Betriebsverfahren für ein pulssequenzcodiert betreibbares und mit einem SPAD-basierten Detektorelement (22) ausgebildetes LiDAR-System (1), bei welchem (i) eine Totzeit (ttot) des SPAD-basierten Detektorelements (22) erfasst wird und (ii) im Sendebetrieb des LiDAR-Systems (1) ein minimaler zeitlicher Abstand (tmin) zeitlich direkt oder unmittelbar aufeinanderfolgend auszusendender Sendepulse (57-1,..., 57-4) an Primärlicht (57) so bemessen wird, dass er der Totzeit (ttot) zumindest annähernd entspricht.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)