Rudder angle transmission device and rudder angle transmission method
A technology of transmission device and transmission method, which is applied in the field of rudder angle transmission, can solve the problems of poor system compatibility and susceptibility to interference, and achieve the effects of strong anti-interference ability, long transmission distance and high compatibility
Inactive Publication Date: 2012-07-18
BEIJING HIGHLANDER DIGITAL TECH
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is: the existing rudder angle indicator is implemented by an analog circuit, which is susceptible to interference, poor system compatibility, inflexible implementation, and high cost
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[0024] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0025] Such as figure 1 As shown, it is a structural schematic diagram of an embodiment of the present invention, the rudder angle transmission device includes an acquisition unit 1, a connection distribution unit 2 and an indication unit 3, and the acquisition unit 1 converts the acquired rudder angle value through A / D After the sum filtering process, it is converted into a digital rudder angle value, and the digital rudder angle value is transmitted to the connection distribution unit 2 through the CAN bus, and the connection distribution unit 2 converts the digital rudder angle value to the NMEA serial communication protocol The way to pass to the instruction unit 3. ...
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The invention relates to a rudder angle transmission device and a rudder angle transmission method. The device comprises a collection unit, a connecting distribution unit and indication units, wherein the collection unit converts a collected rudder angle value into a digital rudder angle value after A / D (analog to digital) conversion and filter process and transmits the digital rudder angle value to the connecting distribution unit through a CAN (controller area network) bus, the connecting distribution unit transmits the digital rudder angle value to the indication units in a form of NMEA (National Marine Electronics Association) serial communication protocol after the connecting distribution unit is analyzed through a CAN protocol. According to the method, the rudder angle value is transmitted after digital conversion and is displayed through the indication units. According to the invention, the rudder angle value is converted digitally, the digital rudder angle data can be transmitted through the CAN bus to a plurality of indication units to be displayed, and therefore, due to the digital transmission form, the anti-interference capability is strong, the transmission distance is long, signals are steady, the extensibility is strong, the compatibility is higher, and the production cost is also greatly lowered.
Description
technical field [0001] The invention belongs to the technical field of rudder angle transmission, and in particular relates to a rudder angle transmission device and method. Background technique [0002] In the ship steering control system, it is necessary to obtain the current actual rudder angle in real time. The higher the accuracy of collecting the rudder angle, the higher the control accuracy. As the acquisition accuracy of the ship steering system is higher, the control accuracy is also higher. The traditional rudder angle indicator is implemented by an analog circuit, and the collected rudder angle is transmitted in the form of current or voltage. Since the transmitted rudder angle value is an analog value, the voltage value / current value needs to be calibrated. According to the calibration value To correspond to the display angle, the display terminal adopts an adjustable angle machine to enlarge the angle proportionally to realize it. [0003] It can be seen from ...
Claims
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IPC IPC(8): B63H25/36
Inventor 赵杰童
Owner BEIJING HIGHLANDER DIGITAL TECH