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EKF: modify ALT_SOURCE param description 

We regularly find users changing the ALT_SOURCE to 1 (range finder) when trying to implement terrain following which is not the correct way to do it
This commit is contained in:
Randy Mackay 2018-07-16 09:05:16 +09:00
parent 2ba6f64281
commit 3d72022f6e
2 changed files with 4 additions and 4 deletions
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4
libraries/AP_NavEKF2/AP_NavEKF2.cpp
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@ -202,7 +202,7 @@ const AP_Param::GroupInfo NavEKF2::var_info[] = {
// @Param: ALT_SOURCE // @Param: ALT_SOURCE
// @DisplayName: Primary altitude sensor source // @DisplayName: Primary altitude sensor source
// @Description: This parameter controls the primary height sensor used by the EKF. If the selected option cannot be used, it will default to Baro as the primary height source. Setting 0 will use the baro altitude at all times. Setting 1 uses the range finder and is only available in combination with optical flow navigation (EK2_GPS_TYPE = 3). Setting 2 uses GPS. Setting 3 uses the range beacon data. NOTE - the EK2_RNG_USE_HGT parameter can be used to switch to range-finder when close to the ground. // @Description: Primary height sensor used by the EKF. If the selected option cannot be used, baro is used. 1 uses the range finder and only with optical flow navigation (EK2_GPS_TYPE = 3), Do not use "1" for terrain following. NOTE: the EK2_RNG_USE_HGT parameter can be used to switch to range-finder when close to the ground.
// @Values: 0:Use Baro, 1:Use Range Finder, 2:Use GPS, 3:Use Range Beacon // @Values: 0:Use Baro, 1:Use Range Finder, 2:Use GPS, 3:Use Range Beacon
// @User: Advanced // @User: Advanced
// @RebootRequired: True // @RebootRequired: True
@ -485,7 +485,7 @@ const AP_Param::GroupInfo NavEKF2::var_info[] = {
// @Param: RNG_USE_HGT // @Param: RNG_USE_HGT
// @DisplayName: Range finder switch height percentage // @DisplayName: Range finder switch height percentage
// @Description: The range finder will be used as the primary height source when below a specified percentage of the sensor maximum as set by the RNGFND_MAX_CM parameter. Set to -1 to prevent range finder use. // @Description: Range finder can be used as the primary height source when below this percentage of its maximum range (see RNGFND_MAX_CM). Set to -1 when EK2_ALT_SOURCE is not set to range finder. This is not for terrain following.
// @Range: -1 70 // @Range: -1 70
// @Increment: 1 // @Increment: 1
// @User: Advanced // @User: Advanced

4
libraries/AP_NavEKF3/AP_NavEKF3.cpp
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@ -192,7 +192,7 @@ const AP_Param::GroupInfo NavEKF3::var_info[] = {
// @Param: ALT_SOURCE // @Param: ALT_SOURCE
// @DisplayName: Primary altitude sensor source // @DisplayName: Primary altitude sensor source
// @Description: This parameter controls the primary height sensor used by the EKF. If the selected option cannot be used, it will default to Baro as the primary height source. Setting 0 will use the baro altitude at all times. Setting 1 uses the range finder and is only available in combination with optical flow navigation (EK3_GPS_TYPE = 3). Setting 2 uses GPS. Setting 3 uses the range beacon data. NOTE - the EK3_RNG_USE_HGT parameter can be used to switch to range-finder when close to the ground. // @Description: Primary height sensor used by the EKF. If the selected option cannot be used, baro is used. 1 uses the range finder and only with optical flow navigation (EK2_GPS_TYPE = 3), Do not use "1" for terrain following. NOTE: the EK3_RNG_USE_HGT parameter can be used to switch to range-finder when close to the ground.
// @Values: 0:Use Baro, 1:Use Range Finder, 2:Use GPS, 3:Use Range Beacon // @Values: 0:Use Baro, 1:Use Range Finder, 2:Use GPS, 3:Use Range Beacon
// @User: Advanced // @User: Advanced
// @RebootRequired: True // @RebootRequired: True
@ -472,7 +472,7 @@ const AP_Param::GroupInfo NavEKF3::var_info[] = {
// @Param: RNG_USE_HGT // @Param: RNG_USE_HGT
// @DisplayName: Range finder switch height percentage // @DisplayName: Range finder switch height percentage
// @Description: The range finder will be used as the primary height source when below a specified percentage of the sensor maximum as set by the RNGFND_MAX_CM parameter. Set to -1 to prevent range finder use. // @Description: Range finder can be used as the primary height source when below this percentage of its maximum range (see RNGFND_MAX_CM). Set to -1 when EK3_ALT_SOURCE is not set to range finder. This is not for terrain following.
// @Range: -1 70 // @Range: -1 70
// @Increment: 1 // @Increment: 1
// @User: Advanced // @User: Advanced