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Penta-Ocean Construction Co., Ltd.
Takuzo Shimizu, President, CEO and Representative Director

Penta-Ocean Introduced Entering/Leaving managing system with Colour bit codes

Tokyo, Japan – September 14, 2018 – Penta Ocean Construction Co., Ltd. (hereinafter referred to as “Penta Ocean”) is pleased to announce that Penta Ocean has introduced a contactless entering/leaving managing system, using automatic authentication codes (Colour bit codes), which is owned by bcore Inc., (Chiyoda-ku, Tokyo) to the head office building in May, 2018. This is aimed at not only improving security but also effectively utilizing the entrance and exit records.


The system installed at the front gate of the Head Office building are made up with an ID card with automatic authentication code (Colour bit codes) as an identification card for the staff members of Penta Ocean, a sensor camera, made by Panasonic Corporation, to read the code at a normal walking speed without stopping to touch the code reading unit, and a security gate, made by Kumahira co., ltd., linking with the ID card and sensor camera.
When passing through the gate, the sensor camera reads the color bit, and the gate automatically opens and closes, while the ID card is left on the neck with the neck strap. The system allows entering and exiting without stopping at the gate standing, even if both hands are occupied with luggage. In addition to the main entrance, a sensor camera linked with a door lock is installed at the other entrances, which helps read the Colour bits codes to enter and exit the building. Compared to the contact type cards with IC chips, contactless optical readable ID cards are able to be produced at a lower cost, about 10% of the IC chip card production cost, estimated by Penta-Ocean.
The entrance / exit history of the staff members of the company or visitors is recorded in the database, which enables to grasp the entrance / exit time and staying time of the staff members, and visitors. Thereby, it is possible to utilize entrance / exit history data not only for improving the security, but also for managing the work time and improving the operations.


This system is being introduced to not only all branches in Japan but also the Head Office in Singapore (International Business Unit) respectively. It is also being introduced to the construction sites. Penta Ocean is projected to apply the system to the entrance / exit management of onsite visitors, linking the Construction Career Improvement System. In addition, the system is scheduled to be adopted for simultaneously measuring the movement of both crew members and heavy machinery at construction sites.


 When passing through the gate
When passing through the gate

Security gate
Security gate

  • >ID cardID card
  • Colour bit codesColour bit codes


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