Seeking Marine automatic wheel principle and zero correction?

Adaptive steering wheel has a dual mode of having two complete systems, SYSTEM SELECTOR SWITCH (system selection switch) are the following files: NO.1-OFF-NO.2, when the switch to the desired operating system bit system It will automatically enter the running state, and when the switch to OFF position, the entire system will stop working.
Autopilot is set to maintain the ship on automatic steering control device in a predetermined course navigation, recently, for autopilot performance evaluation from "the ship can maintain accurate heading" to "In each case, the most fuel manipulation. " However, the operation of the ship depending on the ship's dimensions and specific technical indicators, as well as the speed of the ship, loading and sea conditions, different circumstances and different. Thus, for the evaluation of automatic wheel no clear standard.
Three kinds heading maintenance mode, according to the actual, for a variety of sea conditions: OPEN SEA (open water mode) only applies to minor steering wheel navigation conditions, such as sailing on the ocean, in order to save fuel costs. CONFINED (restricted mode) apply to substantial manipulation cases, such as sailing in a narrow channel in order to maintain the course it is to improve the accuracy.
The proportion of the wheel (RATE) as a standard steering mode, you can rotate the wheel instruction given instructions by setting the rate of the steering control of the ship.
Automatic navigation system (NAV) model combines the plan heading navigation system -TRACKING PILOT (optional installation), and can be combined with other manufacturers' navigation systems.
Artificial steering wheel (HAND steering) wheel can be manipulated to achieve the desired steering angle, full rudder from one side to the other side with full rudder.
Automatic and manually operated (CPU & HAND manipulated) by the amplifier unit is disposed inside the steering wheel control station. The sensor uses a non-contact type linear synchronous motor and the electronic circuit is also used in many applications to improve the structure of the semiconductor non-contact control part of the function, but it can achieve perfection. This automatic and manual steering is known as type servo control. Because it enables the rotational angle of the steering rudder and the page order consistent.
Emergency wheel mode (NFU) through the switch, turning on or off the power and not to control the solenoid valve through the amplifying circuit for power transmission manner. Due to the grading and feedback signal circuit in addition to the steering angle instruction. So using a rotary switch to turn on or off the power to control the way called non-servo control.
In order to ensure safety of navigation lights and alarm equipment should be in good condition. LEDs show the autopilot working condition. Alarm device uses visual and audible alarms alert manner.