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1. (WO2018142628) OBJECT DETECTION DEVICE, OBJECT DETECTION METHOD, AND COMPUTER READABLE RECORDING MEDIUM
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Pub. No.: WO/2018/142628 International Application No.: PCT/JP2017/004282
Publication Date: 09.08.2018 International Filing Date: 06.02.2017
IPC:
G01S 13/536 (2006.01) ,G01S 13/34 (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
13
Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
02
Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
50
Systems of measurement based on relative movement of target
52
Discriminating between fixed and moving objects or between objects moving at different speeds
536
using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-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
13
Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
02
Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
06
Systems determining position data of a target
08
Systems for measuring distance only
32
using transmission of continuous unmodulated waves, amplitude-, frequency- or phase-modulated waves
34
using transmission of frequency-modulated waves and the received signal, or a signal derived therefrom, being heterodyned with a locally-generated signal related to the contemporaneous transmitted signal to give a beat-frequency signal
Applicants:
日本電気株式会社 NEC CORPORATION [JP/JP]; 東京都港区芝五丁目7番1号 7-1, Shiba 5-chome, Minato-ku, Tokyo 1088001, JP
Inventors:
松尾 大輔 MATSUO, Daisuke; JP
山之内 慎吾 YAMANOUCHI, Shingo; JP
有吉 正行 ARIYOSHI, Masayuki; JP
Agent:
特許業務法人ブライタス BRIGHTAS IP ATTORNEYS; 大阪府大阪市北区曽根崎2丁目5番10号 2-5-10, Sonezaki, Kita-ku, Osaka-shi, Osaka 5300057, JP
Priority Data:
Title (EN) OBJECT DETECTION DEVICE, OBJECT DETECTION METHOD, AND COMPUTER READABLE RECORDING MEDIUM
(FR) DISPOSITIF DE DÉTECTION D’OBJET, PROCÉDÉ DE DÉTECTION D’OBJET ET SUPPORT D’ENREGISTREMENT LISIBLE PAR ORDINATEUR
(JA) 物体検知装置、物体検知方法、及びコンピュータ読み取り可能な記録媒体
Abstract:
(EN) An object detection device 1 comprising: an irradiation unit 11 that irradiates RF transmission signals every cycle; a reception unit 21 that receives reflected waves of RF transmission signals, as RF reception signals; an IF signal generation unit 22 that mixes RF transmission signals and RF reception signals and generates IF signals; a one-dimensional spectrum generation unit 23 that generates a one-dimensional spectrum relative to a distance using the object detection device 1 as a reference therefor, on the basis of the IF signals, and using the one-dimensional spectrum generates a fixed object reflection-removed one-dimensional spectrum having removed therefrom a signal component arising from reflected waves from a fixed object present in an irradiation range; a position detection unit 24 that detects the positions of objects other than the fixed object, on the basis of the amplitude of the fixed object reflection-removed one-dimensional spectrum; and a displacement detection unit 25 that detects the displacement of objects other than the fixed object, on the basis of the phase of the fixed object reflection-removed one-dimensional spectrum corresponding to the positions of objects other than the fixed object.
(FR) L'invention concerne un dispositif de détection d'objet (1) comprenant : une unité d'émission (11) qui émet des signaux de transmission RF à chaque cycle ; une unité de réception (21) qui reçoit des ondes réfléchies de signaux de transmission RF, en tant que signaux de réception RF ; une unité de génération de signaux IF (22) qui mélange des signaux de transmission RF et des signaux de réception RF et génère des signaux IF ; une unité de génération de spectre unidimensionnel (23) qui génère un spectre unidimensionnel par rapport à une distance à l'aide du dispositif de détection d'objet (1) en tant que référence pour ce dernier, en fonction des signaux IF, et à l'aide du spectre unidimensionnel, génère un spectre unidimensionnel à élimination de réflexion d'objet fixe par l'élimination de ce dernier d'une composante de signal provenant d'ondes réfléchies par un objet fixe présent dans une plage d'émission ; une unité de détection de position (24) qui détecte les positions d'objets autres que l'objet fixe, en fonction de l'amplitude du spectre unidimensionnel à élimination de réflexion d'objet fixe ; et une unité de détection de déplacement (25) qui détecte le déplacement d'objets autres que l'objet fixe, en fonction de la phase du spectre unidimensionnel à élimination de réflexion d'objet fixe correspondant aux positions d'objets autres que l'objet fixe.
(JA) 物体検知装置1は、RF送信信号を周期毎に照射する照射部11と、RF送信信号の反射波をRF受信信号として受信する受信部21と、RF送信信号とRF受信信号とをミキシングしてIF信号を生成するIF信号生成部22と、IF信号に基づいて、物体検知装置1を基準とした距離に対する1次元スペクトルを生成し、これを用いて、照射範囲内に存在する固定物からの反射波に起因する信号成分が除去された固定物反射除去1次元スペクトルを生成する1次元スペクトル生成部23と、固定物反射除去1次元スペクトルの振幅に基づいて、固定物以外の物体の位置を検出する位置検出部24と、固定物以外の物体の位置に対応する固定物反射除去1次元スペクトルの位相に基づいて、固定物以外の物体の変位を検出する変位検出部25とを備えている。
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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, 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: Japanese (JA)
Filing Language: Japanese (JA)