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Piece picking

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Piece picking


The proportion of picking work at logistics centers is said to be about 60 to 70%. It is difficult to recruit for the kind of simple labor where workers have to walk around picking out specified products, and in recent years, as demand has increased, this has become a hindrance.
Starting in 2016, with the business collaboration with ASKUL, MUJIN has been developing a piece picking system to solve this problem. In addition, we introduced 18 picking systems at the Shanghai Center of JD.com in China, realizing the world's first completely automated logistics center.

Conventional methods - Problems


  • Picking mistakes by workers occur
  • A passageway is necessary for each row of shelving.
  • People cannot be recruited to respond at peak times.

MUJIN system - Solutions


  • Picking mistakes and shipping mistakes are reduced.
  • Space savings are achieved and high-level free space can be utilized to the maximum.
  • “No resting. No stopping. No quitting.” is realized.
  • Secure and safe with no entry for humans.

Feature 1 MUJIN 3D Vision handles ultra-wide ranges of products

Conventional methods - Problems


  • With no registration system just for box-type objects, vision recognition settings are required for each product type.
  • Design pattern registration is also impossible, so recognition mistakes occur.

MUJIN system - Solutions


  • Various products can be registered, from boxes to bottles.
  • With MUJIN’s proprietary registration system, anyone can easily register product types.
  • Speeds and suction areas can be customized for each registered product to achieve more stable picking.

Feature 2 Automatic picking to handle various load conditions (disordered loads)

Conventional methods - Problems


  • Picking from a disordered loading condition is extremely difficult, as it requires extensive teaching for each type of product.
  • Since neat packing cannot be performed well, space efficiency is poor.
  • Ultimately, it is necessary to produce a flat loading state, which requires extra man hours.

MUJIN system - Solutions


  • With MUJIN's Teachless technology, picking can be automatically started whatever the loading condition and product are.
  • With the advanced interference avoidance function, deep boxes can be used as well.
  • Because it is “Teachless”, a very large variety of products can be handled.

Feature 3 Sensitive autonomous placement function that won’t damage customers' products

Conventional methods - Problems


  • With a teaching-based robot, it is not possible for the robot to be controlled in real time so that it can adapt to the continually changing conditions within a box.
  • Products can only be dropped from a fixed point over the box, which can damage them.
  • Since neat packing cannot be performed well, space efficiency is poor.

MUJIN system - Solutions


  • Products can be placed in the container with no gaps.
  • Since products are placed aligned into gaps, as they would be by a human being, they are not damaged through collisions.
  • Since the container on the placement side is also constantly monitored, when loads collapse, approaches will be made only after checking the situation.

Feature 4 Intelligent hand control tailored to products - Handling many products is possible with a single hand -

Conventional methods - Problems


  • Two products may be accidentally taken because product-specific suction control cannot be performed.
  • Heavy items may be thrown clear because the speed cannot be adjusted according to the product.

MUJIN system - Solutions


  • Product-specific suction control is performed so that two products will not be taken in error.
  • The speed can be adjusted according to the product so, for example, speed is suppressed for heavier products, and a fine level of control can be performed.

System configuration

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