CN104614554B - Ship base wind speed wind direction sensor fiducial error reviews one's lessons by oneself correction method - Google Patents

Abstract

A kind of ship base wind speed wind direction sensor fiducial error that can improve device measuring accuracy by on-line study reviews one's lessons by oneself correction method.Technical scheme is：It is characterized in that comprising the following steps：As relative wind velocity value V_R, navigation wind speed V_sWith true wind speed V_TMeet 0.5≤V_R‑(V_S±V_T)≤0.5, and true wind speed V_TDuring >=5.0m/s, fiducial error α=D_R；As relative wind velocity value V_R, navigation wind speed V_sWith true wind speed V_TMeet 0.5≤V_R‑(V_T‑V_S)≤0.5, and true wind speed V_TDuring >=5.0m/s, fiducial error α=D_R‑180；In the case where meeting above-mentioned qualifications, fiducial error amendment window is opened, and obtains a fiducial error value α₁, as ship is navigated by water under different postures, the fiducial error value of n is obtained, α is individually identified as₁、α₂、……α_n.In the fiducial error value of n of acquisition, 1 maximum and a minimum value, remaining (n 2) individual carry out arithmetic average are rejected, fiducial error is obtained:Wind speed and direction measurement result is modified using obtained fiducial error：D’_R=D_Rβ simultaneously carries out amendment record, completes the error correction of this round.

Description

Ship base wind speed wind direction sensor fiducial error reviews one's lessons by oneself correction method

Technical field

Set the invention belongs to wind speed wind direction sensor error correcting method field, especially a kind of improved by on-line study The ship base wind speed wind direction sensor fiducial error of standby measurement accuracy reviews one's lessons by oneself correction method.

Background technology

At present, the measurement of ambient wind is realized in ship base meteorologic survey equipment using wind speed wind direction sensor.Wind speed and wind The top of ship mainmast is installed on to sensor, during installation on the basis of the fore and aft line of ship.Wind measured by the sensor Fast wind direction data be relative to hull relative value, i.e., wind speed be air relative to hull translational speed, wind direction be relative to Stem comes wind direction, the commonly referred to as relative wind of the measurement result.With respect to the vector that wind is ambient wind and ship's navigation wind.Ship Base meteorologic survey equipment can receive the speed of a ship or plane sail information of ship automatically, and then calculate ambient wind, i.e. true wind value.

The wind direction measurement result of wind speed wind direction sensor is on the basis of stem, therefore, must be by when line sensor is installed entering 0 ° of direction of sensor is directed at stem and parallel with fore and aft line.But sensor is arranged on the top of ship mainmast, applies in high precision Work difficulty is big, and reference precision typically only requires control within ± 5 °.And ± 5 ° of fiducial error can cause relative wind be more than ± 5 ° of measurement error, and then the true wind error increase that resolving can also obtained, and wind is bigger, true wind resolution error is bigger.

For convenience of Support, wind speed wind direction sensor is typically connected by bolt with hull, and is sensed during ship's navigation The device installation region moment is in vibrational state, and this reference for installation error for easily causing sensor increasingly increases.

The content of the invention

The ship base wind speed and wind of device measuring accuracy can be improved by on-line study it is an object of the invention to provide a kind of Correction method is reviewed one's lessons by oneself to sensor Ref error.

The technical scheme is that：Ship base wind speed wind direction sensor fiducial error reviews one's lessons by oneself correction method, it is characterized in that including The following steps：

(1) measurement result of ship base meteorologic survey equipment collection wind speed wind direction sensor obtains relative wind value, relative wind velocity It is designated V_R, D is designated with respect to wind direction_R, ship coordinate system is based on respect to wind value；

(2) ship base meteorologic survey equipment receives the navigation attitude information of ship navigation equipment automatically, obtain the bow of ship to And the speed of a ship or plane, sailing in the wind value is obtained according to the speed of a ship or plane sail information of ship, navigation wind speed is designated V_s, navigate by water wind direction and be designated D_s, boat Sector-style value is based on earth coordinates；

(3) with relative wind value (V_R、D_R) and sailing in the wind value (V_s、D_s) to input, pass through the solution of true wind under ship navigation state Model is calculated, the environment true wind value for obtaining sea area residing for ship can be calculated, true wind speed is designated V_T, true wind direction is designated D_T, true wind value Based on earth coordinates；

(4) as relative wind velocity value V_R, navigation wind speed V_sWith true wind speed V_TMeet

-0.5≤V_R-(V_S±V_T)≤0.5,

And true wind speed V_TDuring >=5.0m/s, fiducial error α=D_R；As relative wind velocity value V_R, navigation wind speed V_sWith true wind speed V_T Meet

-0.5≤V_R-(V_T-V_S)≤0.5,

And true wind speed V_TDuring >=5.0m/s, fiducial error α=D_R-180；

(5) in the case where meeting above-mentioned qualifications, fiducial error amendment window is opened, and obtains a fiducial error value α₁, with Ship to navigate by water under different postures, obtain the fiducial error value of n, be individually identified as α₁、α₂、……α_n。

(6) 1 maximum and a minimum value are rejected in the n of acquisition fiducial error value, remaining (n-2) it is individual enter Row arithmetic average, obtains fiducial error, and (n-2) individual fiducial error value by described in is individually identified as β₁、β₂、……β_n-2, i.e.,:

Wind speed and direction measurement result is modified using obtained fiducial error：

D’_R=D_R-β,D_RThe relative wind direction that wind speed wind direction sensor measurement is obtained is gathered for ship base meteorologic survey equipment, and Record is modified, the error correction of this round is completed.

The present invention effect be：Ship base wind speed wind direction sensor fiducial error reviews one's lessons by oneself correction method, improves measurement accuracy, improves Vessel motion security.

The present invention is described in further details with reference to embodiment.

Brief description of the drawings

Accompanying drawing is FB(flow block) of the invention.

Embodiment

The present invention is described in more detail with reference to the accompanying drawings and detailed description.

The present invention is that one kind is embedded into measuring apparatus data processing software, and it is accurate to improve device measuring by on-line study The wind speed wind direction sensor fiducial error of property reviews one's lessons by oneself correction method.During actual on-line study, by relative wind velocity, relative wind To, ship speed, bow to etc. real-time parameter as input, recognize Ship dynamic situation, differentiate and record ship against the wind or run before the wind When relative wind direction value, calculate and obtain the reference for installation error of wind speed wind direction sensor, and itself measurement result is carried out with it Amendment.Comprise the following steps that：

1. being equipped with certain ship's navigation of ship base meteorologic survey equipment in certain marine site, the wind speed in the marine site is more than 5.0m/s, Ship presses its planned course timing adjustment navigation attitude.The measurement result of ship base meteorologic survey equipment automatic data collection wind speed wind direction sensor Obtain relative wind value, the automatic speed of a ship or plane course information for receiving ship navigation equipment.Each information content is as shown in the table.

2. with relative wind value (V_R、D_R) and sailing in the wind value (V_s、D_s) to input, pass through the solution of true wind under ship navigation state Model is calculated, the environment true wind value for obtaining sea area residing for ship can be calculated, true wind speed is designated V_T, true wind direction is designated D_T, true wind value Based on earth coordinates, data above is as input, and obtained environment true wind value is as shown in the table.

3. calculate the relative wind velocity value V in every group of data_R, navigation wind speed V_sWith true wind speed V_TBetween and judge, data above It is satisfied by

-0.5≤V_R-(V_S±V_T)≤0.5

Condition, and true wind speed meets V_T>=5.0m/s, can obtain one group of fiducial error α=D_RValue.

It is as shown in the table.

4. in the fiducial error value of 20 of acquisition, 1 maximum and a minimum value are rejected, remaining 18 are calculated Art is averaged, and obtains fiducial error α values for 11.2 °.

With 11.2 ° of the fiducial error α values obtained to phase in ship base meteorologic survey equipment is with respect to wind direction acquisition software module Wind direction value is modified, even if D_R=D_R-1- 11.2 °, complete the error correction of this round.

Claims (1)

1. a kind of ship base wind speed wind direction sensor fiducial error reviews one's lessons by oneself correction method, comprise the following steps：

(1) measurement result of ship base meteorologic survey equipment collection wind speed wind direction sensor obtains relative wind value, relative wind velocity mark For V_R, D is designated with respect to wind direction_R, ship coordinate system is based on respect to wind value；

(2) ship base meteorologic survey equipment receives the navigation attitude information of ship navigation equipment automatically, obtain the bow of ship to and boat Speed, sailing in the wind value is obtained according to the speed of a ship or plane sail information of ship, and navigation wind speed is designated V_s, navigate by water wind direction and be designated D_s, sailing in the wind Value is based on earth coordinates；

(3) with relative wind value (V_R、D_R) and sailing in the wind value (V_s、D_s) it is input value, pass through the resolving of true wind under ship navigation state Model, calculates the environment true wind value for obtaining sea area residing for ship, and true wind speed is designated V_T, true wind direction is designated D_T, true wind value is based on Earth coordinates；

(4) as relative wind velocity value V_R, navigation wind speed V_sWith true wind speed V_TMeet

-0.5≤V_R-(V_S±V_T)≤0.5,

And true wind speed V_TDuring >=5.0m/s, fiducial error α=D_R；As relative wind velocity value V_R, navigation wind speed V_sWith true wind speed V_TMeet

-0.5≤V_R-(V_T-V_S)≤0.5,

And true wind speed V_TDuring >=5.0m/s, fiducial error α=D_R-180；

(5) in the case where meeting above-mentioned qualifications, fiducial error amendment window is opened, and obtains a fiducial error value α₁, with ship Navigated by water under different postures, obtain the fiducial error value of n, be individually identified as α₁、α₂、……α_n；

(6) in the n of acquisition fiducial error value, 1 maximum and a minimum value are rejected, (n-2) is individual is calculated for remaining Art is averaged, and obtains fiducial error, and (n-2) individual fiducial error value by described in is individually identified as β₁、β₂、……β_n-2, i.e.,：

$\mathrm{\β}=\frac{{\mathrm{\Σ}}_{i=1}^{n-2}{\mathrm{\β}}_i}{n-2}$

Wind speed and direction measurement result is modified using obtained fiducial error：D’_R=D_R- β, D_RSet for ship base meteorologic survey The relative wind direction that standby collection wind speed wind direction sensor measurement is obtained, and amendment record is carried out, complete the error correction of this round.