Abstract

A scan using a pulsed distance measuring light with two wavelengths of which reflectances are different with respect to a content of a nitrogen by a laser scanner, the two wavelengths are separated, lights are received, a distance measurement value and a light amount are detected for each pulsed distance measuring light and for each of the two wavelengths, a height of a crop is detected based on the distance measurement value, a received light amount ratio of the two wavelengths is detected, and a growth condition of the crop is detected based on the detected height and the received light amount ratio.

IPC Classes  ?

• G01S 17/88 - Lidar systems, specially adapted for specific applications
• A01G 7/00 - Botany in general
• G01S 7/481 - Constructional features, e.g. arrangements of optical elements

Abstract

[Problem] To provide a growth information management device that can ascertain, with good accuracy, the growth state of plants etc. regardless of changes in the position of an apparatus or the like on which the device is disposed. [Solution] A growth information management device 100, in a state of being attached to a separate apparatus 1, projects measurement light onto plants P, acquires growth information thereof on the basis of received reflected-light, and corrects the growth information on the basis of information on a change in the projection direction of the measurement light, such change accompanying a change in the position of the separate apparatus.

IPC Classes  ?

• A01G 7/00 - Botany in general
• B64D 47/02 - Arrangements or adaptations of signal or lighting devices
• G01N 21/27 - Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection

Abstract

A grain measuring device 10 comprises: a reaping determination unit 11 that determines a grain reaping state; and a measuring unit 12 that measures the components in grain, and saves measurement results when it has been determined by the reaping determination unit 11 that grain is being reaped by a combine 1.

IPC Classes  ?

• A01D 41/127 - Control or measuring arrangements specially adapted for combines