Title:
IDENTIFICATION METHOD AND DEVICE FOR EMERGENCY VEHICLE
Document Type and Number:
WIPO Patent Application WO/2018/201349
Kind Code:
A1
Abstract:
Disclosed are an identification method and device for an emergency vehicle, the method comprising: acquiring a sound signal and a video image of an environment in which the emergency vehicle is located; analyzing the sound signal to obtain an audio coding and analyzing the video image to obtain a visual coding; and determining a type and a state of the emergency vehicle according to the audio coding and the visual coding. By using the audio coding, the visual coding or a combination thereof, the method can be used to search for and match the type and the active state of an emergency vehicle to be identified in accordance with a standard correspondence between the types and the states of emergency vehicles specified in an existing standard and warning siren audio frequencies, tone-changing periods, warning light colors and warning light flashing modes, thus realizing accurate identification of emergency vehicles in various scenarios.
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Inventors:
SONG FENGLONG (CN)
LIU LIU (CN)
WANG TAO (CN)
LIU LIU (CN)
WANG TAO (CN)
Application Number:
PCT/CN2017/082915
Publication Date:
November 08, 2018
Filing Date:
May 03, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G08G1/09; G06K9/46; G08B3/10; G08G1/04; G08G1/0965
Foreign References:
| JP2002245588A | 2002-08-30 | |||
| JPH11306494A | 1999-11-05 | |||
| JPH06325291A | 1994-11-25 | |||
| CN105608906A | 2016-05-25 | |||
| CN101601076A | 2009-12-09 |
Attorney, Agent or Firm:
E-TONE INTELLECTUAL PROPERTY FIRM (CN)
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