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Spectrum measuring apparatus for mover

A technology for spectrometry and moving objects, which is applied in the directions of measuring devices, sensing radiation of moving objects, spectrometry/spectrophotometry/monochromator, etc. It can solve problems such as the decline of recognition accuracy and the change of the spectrum of the measurement object

Inactive Publication Date: 2012-04-25
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when such a spectral sensor is applied to a mobile body such as a vehicle, even if it is the same measurement object, the measurement object will be distorted due to the influence of the weather or the degree of sunlight, the brightness of street lamps, the ambient light of the road environment, and the like. The spectrum changes
Therefore, even if the spectral data of the measuring object is acquired by the above-mentioned spectral sensor, the reduction of recognition accuracy due to the influence of such ambient light cannot be avoided.

Method used

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  • Spectrum measuring apparatus for mover
  • Spectrum measuring apparatus for mover
  • Spectrum measuring apparatus for mover

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Experimental program
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no. 1 approach

[0103] figure 1 The schematic structure is shown about the 1st Embodiment which actualized the spectrometry apparatus for mobile objects concerning this invention.

[0104] Such as figure 1 As shown in (a), the spectrum measuring device for a mobile body is provided with a control value calculator 100, and the control value calculator 100 calculates a control value used, for example, to observe pedestrians and When measuring objects such as traffic lights and obstacles, the irradiation method of the reference light irradiated on these measuring objects and the imaging spectral characteristics of the spectral sensor S itself are controlled to make the wavelength range and each of the observation light detected by the sensor S The characteristic quantity of the light intensity of the wavelength is variable. The control value calculator 100 has figure 1 With the control value map shown in (b), the lighting controller 110 performs lighting control of the lighting device 120 bas...

no. 2 approach

[0125] Below, refer to Figure 12 to Figure 14 , a second embodiment of the actualized spectrometry device for a mobile body according to the present invention will be described. Wherein, in the second embodiment, the light source of the illuminating device is a halogen lamp, and its basic structure is the same as that of the previous first embodiment.

[0126] That is, if Figure 12 As shown, the illuminating device 120A used in this embodiment is composed of a halogen lamp 121 and an optical filter changing plate 122 covering the surface of the halogen lamp 121 . The optical filter changing plate 122, such as Figure 13 As shown, it is composed of a plurality of optical filters 122A to 122H having different wavelength characteristics and transmittances. In addition, by selecting these optical filters 122A to 122H, the wavelength range of the reference light irradiated from the illumination device 120 and the light intensity for each wavelength are changed. Among them, th...

no. 3 approach

[0131] Below, refer to Figure 15 and Figure 16 , the third embodiment of the actualization of the spectrometer for a mobile body according to the present invention will be described. Wherein, in the third embodiment, the light source of the illuminating device is a halogen lamp as in the previous second embodiment, and its basic structure is the same as that of the previous first embodiment. In addition, in this third embodiment, the wavelength range of the reference light irradiated from the lighting device and the light intensity for each wavelength are adjusted by light interference.

[0132] That is, the lighting device 120B used in this embodiment, such as Figure 15 As shown, a beam splitter 123 such as a prism that splits light emitted from a halogen lamp 121 for each wavelength is provided. In addition, the light split by the beam splitter 123 for each wavelength is diffracted by the respective phase plates 124 provided corresponding to the above-mentioned light o...

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Abstract

Disclosed is a mover spectrum measuring apparatus, which is able to discriminate an object being measured more reliably by relieving the influences of an environmental light on photographic data by a spectrum sensor mounted on a mover such as a vehicle. A spectrum sensor (S) capable of measuring wavelength information and optical intensity information is mounted on a vehicle, so that an object being measured around the vehicle is discriminated on the basis of the spectrum data relating to the observation light detected by the spectrum sensor (S). The mover spectrum measuring apparatus comprises an illumination device (120) for making variable the featuring quantity of at least either the wavelength range of the observation light or the optical intensity of each wavelength, and controls the featuring quantity varying mode by the illumination device (120) through an illumination controller (110) on the basis of the control value according to an environmental element.

Description

technical field [0001] The present invention relates to a spectrum measurement device for a mobile body that identifies a measurement target based on spectral data of the measurement target measured by a spectral sensor mounted on a vehicle, especially a mobile body such as an automobile. Background technique [0002] In recent years, many vehicles such as automobiles have been equipped with devices that support the driver's driving and decision-making by recognizing the status of pedestrians and signals that are dynamically changing around the vehicle as the driving support device. In addition, such devices often use a CCD camera to image the state of signals and pedestrians, and perform image processing on the captured image in real time to perform state recognition, and use the result of the recognition for the above-mentioned driving assistance. Usually, however, since the shape of pedestrians varies in various ways depending on the size and orientation, or the presence ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/28
CPCG08B13/00G01J2003/1213G01J3/0235G01J3/0208G01J5/0025G01J2003/104G01J3/36G01J3/021G01J3/10G01J3/02
Inventor 船山龙士川真田进也远藤雅人横地泰容吉田康浩北浜谦一
Owner TOYOTA JIDOSHA KK