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A system and method for online collection of fruit firmness information

An acquisition system and firmness technology, which is applied to the analysis of solids using sound waves/ultrasonic waves/infrasonic waves, material analysis using sound waves/ultrasonic waves/infrasonic waves, and measuring devices. , to achieve accurate on-site detection and the effect of not being easily disturbed by environmental noise

Active Publication Date: 2018-04-27
杭州诺田智能科技有限公司
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Problems solved by technology

The traditional measurement method needs to attach the acceleration sensor to the surface of the measured object, and use the output signal to realize the related measurement of "acceleration-velocity-displacement". This contact installation method will destroy the original vibration state, and even in many Occasions cannot be applied, thus limiting its scope of application

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  • A system and method for online collection of fruit firmness information
  • A system and method for online collection of fruit firmness information
  • A system and method for online collection of fruit firmness information

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Embodiment Construction

[0020] This system integrates the pressure sensor, laser Doppler vibrometer 4, etc., combined with the principle of laser Doppler, to realize the detection of fruit firmness, which uses horizontal conveying device, windmill 2, cylinder 5 and other components to realize the device automation; the controller therein is also an existing technology, for example, a TMS320F2812DSP development board can be used.

[0021] Such as figure 1 As shown, a fruit firmness information online acquisition system includes a controller, a first horizontal conveying system, a second horizontal conveying system, a windmill system, a loudspeaker 3, a laser Doppler vibrometer 4, a frame 8 and a microphone; The windmill system includes a windmill 2, a motor and a Bluetooth module, the central axis of the windmill 2 is connected to the output shaft of the motor; the windmill 2 includes 6 blades, and the angle between two adjacent blades is 60 degrees , and each fan blade has a pressure sensor, the pre...

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Abstract

The invention discloses a fruit firmness information online collecting system and method. The method comprises the steps that a fruit to be detected is placed on one conveying belt, a windmill rotates by a certain angle after the fruit enters fan blades of the windmill to enable the fruit to be in a detection state, a loudspeaker gives a sound wave signal, the detected fruit is motivated to vibrate, a laser Doppler vibration meter projects laser light to the surface of the vibrated fruit, the vibration speed of the detected fruit is collected, the collected vibration speed information is transmitted into a controller through a data collection card, and the watermelon firmness situation is analyzed through software; the windmill rotates again, the fruit gets away from the fan blades and enters the other conveying belt, and an air cylinder receives a signal to determine whether the detected fruit needs to be pushed into a slide way, so that fruit firmness online nondestructive detection and quality classification are achieved.

Description

technical field [0001] The invention relates to an online collection system and method for fruit firmness information. Background technique [0002] China is known as the "Kingdom of Fruits in the World". Almost all kinds of fruits are produced and the output is high. However, due to backward testing and grading equipment, the competitiveness of fruits in the international market is still not enough, and the export rate is low. Fruits are stored and transported after harvesting. There are problems of ripening, softening and decay in the process. [0003] Fruit firmness refers to the strength of the pulp against pressure, which can be used as an important indicator for judging the quality of fruit. Accurate detection of fruit firmness is of great significance for determining the appropriate harvest period, post-harvest storage, evaluating the best edible period and product grading. The traditional detection method of fruit firmness is mainly sampling. Usually, several detec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/04B07C5/34B07C5/02
CPCB07C5/02B07C5/34G01N29/045
Inventor 崔笛吴华林应义斌张文任梦佳高宗梅
Owner 杭州诺田智能科技有限公司
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