A Portable Pilot Unit or shortly a PPU is a device that helps launch ships safely in and out of the port by displaying critical information as a preposition and position on an electronic map. Components

The system includes a laptop with custom software, an AIS receiver and / or a DGPS receiver that is portable in most cases. Laptop met software The laptop is provided with mobile internet, which allows constant forwarding of data from shore. The software on the laptop uses ENC cards. When entering the correct position of the DGPS receiver or GPS antenna on board and dimensions of the ship, the position of the ship is shown on the electronic map. The software also simulates how the ship will move in a certain maneuver and where a collision will occur if the ship is at a collision rate. AIS receiver The AIS receiver is connected to a pilot plug on board, along the plug, information is provided about the speed, presence and draft of the ship to the AIS receiver. This information (speed, propagation and draft) comes from the navigation tools on board. Thereafter, the information received by the AIS receiver is forwarded via Wi-Fi to the computer. Dgps receiver You can also use an external DGPS receiver so that you do not depend on the GPS antenna on board. Schelde navigation marginal ships

For ships larger than 225 m or with a draft greater than 12.5 m, the Schelde SNMS (Schelde Navigation, Marginal Ships) is used. This is a PPU but one connects 2 RTK / GPS receivers that are powered by a battery. For example, speed and propulsion and depth can be determined without depending on the accuracy of the instruments on board. The signal is further improved by shore and is therefore up to 2 cm accurate.

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