小航点计算飞行路径,计算4种情况,匀速。加速匀速减速,加速匀速,匀速减速

This commit is contained in:
pxzleo 2023-12-04 23:48:14 +08:00
parent d051300171
commit 14c489c016
9 changed files with 433 additions and 16 deletions

View File

@ -32,7 +32,8 @@ namespace Plane.Copters
/// <param name="alt">相对于解锁点的高度。</param>
/// <returns>表示此命令异步发送操作的 <see cref="Task"/> 实例。</returns>
/// flytime =飞行时间 秒
Task FlyToAsync(double lat, double lng, float alt,float flytime=0);
/// flytype 0;匀速 1;加减速 2;单加速 3;单减速
Task FlyToAsync(double lat, double lng, float alt,float flytime=0,int flytype = 0);
/// <summary>
/// 切换到 <see cref="CopterState.HoverMode"/> 并悬停。此操作需要使用 GPS 定位,卫星数不足导致定位不准时非常危险。

View File

@ -16,5 +16,11 @@ namespace Plane.Copters
float RetainInt{ get; }
//模拟飞行更新间隔
int sim_update_int { get; set; }
float maxspeed_xy { get; set; }
float maxspeed_up { get; set; }
float maxspeed_down { get; set; }
float acc_z { get; set; }
float acc_xy { get; set; }
}
}

View File

@ -0,0 +1,347 @@
using System;
using System.Collections.Generic;
using System.Text;
namespace Plane.CopterControllers
{
class GuidController
{
static float fabsf(float vvalue)
{
return Math.Abs(vvalue);
}
static float sqrt(float vvalue)
{
return (float)Math.Sqrt(vvalue);
}
/// <summary>
/// 计算小航点飞行
/// </summary>
/// <param name="Distance"></param>
/// <param name="fc_acc"></param>
/// <param name="fc_maxspeed"></param>
/// <returns></returns>
//单算减速,不算加速的最小飞行时间
static float getMinfligthtime_v2(float Distance, float fc_acc, float fc_maxspeed)
{
float fDis = fabsf(Distance); // 总距离
float facc = fabsf(fc_acc); // 减速度
// 物体开始时即以最大速度运动,不考虑加速过程
float vel = fc_maxspeed;
// 计算减速所需的时间和距离
// 减速时间 (从最大速度减速到0)
float dectime = vel / facc;
// 减速阶段覆盖的距离
float decdis = (vel * dectime) - (0.5f * facc * dectime * dectime);
// 判断是否有足够的距离进行减速
if (decdis >= fDis)
{
// 如果减速所需距离已经超过或等于总距离,调整最大速度
// 使用公式 v^2 = u^2 + 2as 解出 v
vel = (float)Math.Sqrt(2 * facc * fDis);
// 重新计算减速时间
dectime = vel / facc;
}
// 计算匀速阶段时间
float unftime = 0.0f;
if (decdis < fDis)
{
// 如果有剩余距离进行匀速运动
unftime = (fDis - decdis) / vel;
}
// 总飞行时间 = 匀速阶段时间 + 减速阶段时间
return unftime + dectime;
}
//单算减速,不算加速的最大飞行速度
public static float CalculateMaximumVelocity(float distance, float time, float acceleration)
{
// 二次方程系数
float a_coeff = 1;
float b_coeff = -2 * time;
float c_coeff = (2 * distance) / acceleration;
// 计算判别式
float discriminant = b_coeff * b_coeff - 4 * a_coeff * c_coeff;
if (discriminant < 0)
{
return -1; // 无实数解
}
// 计算二次方程的根
float t1_root1 = (-b_coeff + (float)Math.Sqrt(discriminant)) / (2 * a_coeff);
float t1_root2 = (-b_coeff - (float)Math.Sqrt(discriminant)) / (2 * a_coeff);
// 选择合理的根作为 t1
float t1 = Math.Min(t1_root1, t1_root2);
if (t1 < 0 || t1 > time)
{
return -1; // 无合理解
}
// 计算最大速度 v
return acceleration * t1;
}
//单算加速,不算减速的距离速度计算
static float getspeeddist_V2(float flight_time, float Distance, float curr_time, float fc_acc, float fc_maxspeed, out float vdist, out float vspeed)
{
vdist = 0;
vspeed = 0;
float desV = CalculateMaximumVelocity(Distance, flight_time, fc_acc);
if ((desV == -1) || (desV > fc_maxspeed)) //飞不到
{
vspeed = Distance / flight_time;
vdist = vspeed * curr_time; //匀速距离
return 0;
}
float dect = desV / fc_acc; // 总加速时间
float unit = flight_time - dect; //匀速段时间
float decD = (fc_acc * dect * dect) / 2; //总加速距离
if (dect > flight_time) dect = flight_time;//约束时间
if (curr_time > dect) //大于加速段时间--匀速
{
vspeed = (Distance - decD) / (flight_time - dect);
vdist = vspeed * (curr_time - dect);
vdist = vdist + decD; //总距离=匀速距离+减速距离
if (vdist > Distance) vdist = Distance; //约束距离
}
else //加速段
{
vspeed = fc_acc * curr_time;
vdist = (fc_acc * curr_time * curr_time) / 2; //加速距离
}
return 0;
}
//单算减速,不算加速的距离速度计算
static float getspeeddist_V3(float flight_time, float Distance, float curr_time, float fc_acc, float fc_maxspeed, out float vdist, out float vspeed)
{
vdist = 0;
vspeed = 0;
float desV = CalculateMaximumVelocity(Distance, flight_time, fc_acc);
if ((desV == -1) || (desV > fc_maxspeed)) //飞不到
{
vspeed = Distance / flight_time;
vdist = vspeed * curr_time; //匀速距离
return 0;
}
float dect = desV / fc_acc; // 总减速时间
float unit = flight_time - dect; //匀速段时间
float decD = desV * dect - (fc_acc * dect * dect) / 2; //总减速距离
if (dect > flight_time) dect = flight_time;//约束时间
//匀速时间内
if (curr_time < unit)
{
vspeed = (Distance - decD) / (flight_time - dect);
vdist = vspeed * curr_time;
}
else
{
if (((flight_time - dect) * unit) == 0)
vdist = 0;
else
vdist = (Distance - decD) / (flight_time - dect) * unit; //匀速距离
float currdect = curr_time - unit; //减速时间
if (currdect >= 0)
{
vspeed = desV - fc_acc * currdect;
decD = desV * currdect - (fc_acc * currdect * currdect) / 2; //减速距离
}
vdist = vdist + decD; //总距离=匀速距离+减速距离
if (vdist > Distance) vdist = Distance; //约束距离
}
return 0;
}
static float getMinfligthtime(float Distance, float fc_acc, float fc_maxspeed)
{
float fDis = fabsf(Distance);
float facc = fabsf(fc_acc);
float realflytime = 0.0f;
//计算一半的距离
float hafdis = (fDis / 2);
//计算最大速度
float vel = (float)sqrt(2 * facc * hafdis);
//如果速度超过最大速度
if (vel > fc_maxspeed)
//使用最大速度
vel = fc_maxspeed;
//加速时间
float acctim = vel / facc;
//加速距离
float accdis = vel * vel / (2 * facc);
//匀速段时间
float vtime = (hafdis - accdis) / vel;
//到一半的时间
float haftime = acctim + vtime;
realflytime = haftime * 2;
return realflytime;
}
///计算飞行距离和速度 单位--米,秒----
//返回 整个距离最大飞行速度
///flight_time 总飞行时间 Distance 飞行总距离 curr_time 当前飞行时间 fc_acc加速度, fc_maxspeed最大速度 vdist 计算的应该飞的距离 vspeed 计算的当前时间应该速度
//========这是飞控正在使用的算法========
static float getspeeddist_V1(float flight_time, float Distance, float curr_time, float fc_acc, float fc_maxspeed, out float vdist, out float vspeed)
{
//计划飞行时间
float plan_flytime = flight_time;
//计算距离用绝对值
float fDis = fabsf(Distance);
if (curr_time < 0)
{
vdist = 0;
vspeed = 0;
return 0.0f;
}
//导航加速度 米/秒*秒 ---不使用导航库
float wpacc = fabsf(fc_acc);// g.fc_acc_xy;//1.5;
//最大目标速度---米/秒
float desired_velocity = 0;
float dist = 0;
//
float speed = 0;
//计算最小飞行时间
float minflytime = getMinfligthtime(Distance, fc_acc, fc_maxspeed);
if (flight_time < minflytime)
plan_flytime = minflytime;// + 0.1f;
//根据总飞行时间和总距离计算飞行速度----起始和结束速度都是0中间按匀加速和匀减速计算没考虑加加速度
float delta = (0.5f * plan_flytime) * (0.5f * plan_flytime) - fDis / wpacc;
if (delta >= 0)
{
desired_velocity = (0.5f * plan_flytime - sqrt(delta)) / (1 / wpacc);
if (desired_velocity > fc_maxspeed)
{
plan_flytime = minflytime;
desired_velocity = fc_maxspeed;
}
}
else
{
desired_velocity = (0.5f * plan_flytime) / (1 / wpacc);
}
if (desired_velocity < 0.2f) desired_velocity = 0.2f; //限制最小速度0.2米/秒
if (desired_velocity > fc_maxspeed) desired_velocity = fc_maxspeed;//限制最大速度10米/秒,应该参数化
//计算实时速度
if (curr_time <= (plan_flytime / 2.0))
speed = curr_time * wpacc;
else
//需要减速
speed = (plan_flytime - curr_time) * wpacc;
//不能大于目标速度
if (speed > desired_velocity)
speed = desired_velocity;
if (speed <= 0)
speed = 0;
vspeed = speed;
//计算实时距离
float V_start = 0.0f;
float V_end = 0.0f;
//加速段
float t1 = (desired_velocity - V_start) / wpacc;
//减速段
float t3 = (desired_velocity - V_end) / wpacc;
//平飞段
float t2 = plan_flytime - t1 - t3;
if (curr_time < t1)
{
dist = 0.5f * wpacc * curr_time * curr_time + curr_time * V_start;
}
else if (curr_time < t1 + t2)
{
dist = -0.5f * wpacc * t1 * t1 + (curr_time) * desired_velocity;
}
else
{
float t = curr_time - t1 - t2;
dist = -0.5f * wpacc * t1 * t1 + curr_time * desired_velocity - 0.5f * wpacc * t * t;
}
if (fabsf(dist) > fabsf(Distance))
vdist = Distance;
else
{
if (Distance < 0)
vdist = -dist;
else vdist = dist;
}
return desired_velocity;
}
public static float getspeeddist(int flytype, float flight_time, float Distance, float curr_time, float fc_acc, float fc_maxspeed, out float vdist, out float vspeed)
{
switch (flytype)
{
case 0: //匀速
//case 1: //匀速
vspeed = Distance / flight_time;
vdist = vspeed * curr_time;
return 0;
case 1: //同时计算加减速
return getspeeddist_V1(flight_time, Distance, curr_time, fc_acc, fc_maxspeed, out vdist, out vspeed);
case 2: //单加速
return getspeeddist_V2(flight_time, Distance, curr_time, fc_acc, fc_maxspeed, out vdist, out vspeed);
case 3: //单减速
return getspeeddist_V3(flight_time, Distance, curr_time, fc_acc, fc_maxspeed, out vdist, out vspeed);
default:
vspeed = 0;
vdist = 0;
return 0;
}
}
}
}

View File

@ -104,7 +104,7 @@ namespace Plane.CopterManagement
return Copter.FlyToAsync(lat, lng);
}
public Task FlyToAsync(double lat, double lng, float alt, float flytime = 0)
public Task FlyToAsync(double lat, double lng, float alt, float flytime = 0, int flytype = 0)
{
return Copter.FlyToAsync(lat, lng, alt);
}

View File

@ -180,6 +180,12 @@ namespace Plane.Copters
private bool _DisplayID = true;
private float _maxspeed_xy=3;
private float _maxspeed_down=3;
private float _maxspeed_up = 3;
private float _acc_z=1f;
private float _acc_xy=2.5f;
#endregion Backing Fields
public CopterImplSharedPart(SynchronizationContext uiSyncContext) : base(uiSyncContext)
@ -683,6 +689,48 @@ namespace Plane.Copters
}
public float maxspeed_xy {
get { return _maxspeed_xy; }
set
{
Set(nameof(maxspeed_xy), ref _maxspeed_xy, value);
}
}
public float maxspeed_up
{
get { return _maxspeed_up; }
set
{
Set(nameof(maxspeed_up), ref _maxspeed_up, value);
}
}
public float maxspeed_down
{
get { return _maxspeed_down; }
set
{
Set(nameof(maxspeed_down), ref _maxspeed_down, value);
}
}
public float acc_z
{
get { return _acc_z; }
set
{
Set(nameof(acc_z), ref _acc_z, value);
}
}
public float acc_xy
{
get { return _acc_xy; }
set
{
Set(nameof(acc_xy), ref _acc_xy, value);
}
}
public byte[] Retain
{
@ -865,11 +913,11 @@ namespace Plane.Copters
return FlyToAsync(lat, lng, Altitude);
}
public Task FlyToAsync(double lat, double lng, float alt, float flytime = 0)
public Task FlyToAsync(double lat, double lng, float alt, float flytime = 0, int flytype = 0)
{
_shouldFollow = false;
//State = CopterState.CommandMode;
return FlyToCoreAsync(lat, lng, alt, flytime);
return FlyToCoreAsync(lat, lng, alt, flytime, flytype);
}
public void Follow(IVisibleStatus target, bool keepYawDifference = false, bool keepFacingTarget = true, bool keep3DRelativeLocations = false)
@ -1125,7 +1173,7 @@ namespace Plane.Copters
/// <param name="lng">经度。</param>
/// <param name="alt">高度。</param>
/// <returns>表示此异步发送操作的 <see cref="Task{TResult}"/> 实例。</returns>
protected abstract Task FlyToCoreAsync(double lat, double lng, float alt, float flytime = 0);
protected abstract Task FlyToCoreAsync(double lat, double lng, float alt, float flytime = 0, int flytype = 0);
protected void RaiseAltitudeChanged() => AltitudeChanged?.Invoke(this, EventArgs.Empty);

View File

@ -144,7 +144,7 @@ namespace Plane.Copters
return Task.FromResult(true);
}
protected override Task FlyToCoreAsync(double lat, double lng, float alt, float flytime = 0)
protected override Task FlyToCoreAsync(double lat, double lng, float alt, float flytime = 0, int flytype = 0)
{
return TaskUtils.CompletedTask;
}

View File

@ -7,6 +7,8 @@ using System.Threading;
using System.Threading.Tasks;
using static Plane.Copters.Constants;
using System.Windows.Media;
using Plane.CopterControllers;
namespace Plane.Copters
{
/// <summary>
@ -89,8 +91,9 @@ namespace Plane.Copters
private float _distance_xy;
private float _distance_z;
private float _distance_xy_delta;
private float _distance_z_delta;
private float _xy_speed;
private float _z_speed;
private int _flytype;
private float currflytime;
// 根据飞行时间计算飞行距离。
private float currdis_xy;
@ -274,7 +277,7 @@ namespace Plane.Copters
return TaskUtils.CompletedTask;
}
protected override Task FlyToCoreAsync(double lat, double lng, float alt, float flytime = 0)
protected override Task FlyToCoreAsync(double lat, double lng, float alt, float flytime = 0, int flytype = 0)
{
if (!IsEmergencyHoverActive)
{
@ -298,10 +301,9 @@ namespace Plane.Copters
_distance_z = alt - Altitude;
Console.WriteLine($"{this.Id}d:{_distance_xy},lat{this.Latitude},lng{this.Longitude },tlat:{lat}tlng:{lng}");
_distance_xy_delta = _distance_xy / _flytime;
_distance_z_delta = _distance_z / _flytime;
_flytype = flytype;
// _xy_speed = _distance_xy / _flytime;
// _z_speed = _distance_z / _flytime;
Mode = FlightMode.GUIDED;
@ -674,6 +676,7 @@ namespace Plane.Copters
break;
case FlightMode.AUTO:
/*
// 暂时只管起飞。以最大速度上升,直到达到目标高度。
if (Altitude < _takeOffTargetAltitude)
{
@ -683,6 +686,7 @@ namespace Plane.Copters
{
Mode = FlightMode.LOITER;
}
*/
break;
case FlightMode.GUIDED:
@ -888,8 +892,18 @@ namespace Plane.Copters
//if (currflytime > 13000)
// return;
// 根据飞行时间计算飞行距离
currdis_xy = _distance_xy_delta * currflytime;
currdis_z = _distance_z_delta * currflytime;
float vspeed = 0;
GuidController.getspeeddist(_flytype, _flytime / 1000, _distance_xy, currflytime / 1000, acc_xy,maxspeed_xy , out currdis_xy, out vspeed);
if (alt> Altitude)
GuidController.getspeeddist(_flytype, _flytime / 1000, _distance_z, currflytime / 1000, acc_z,maxspeed_up, out currdis_z, out vspeed);
else
GuidController.getspeeddist(_flytype, _flytime / 1000, _distance_z, currflytime / 1000, acc_z,maxspeed_down, out currdis_z, out vspeed);
Console.WriteLine($"{this.Id}time:{currflytime / 1000} to {currdis_z}");
// 距离已经很近,直接移动到目标点。
if ((Math.Abs(_distance_xy-currdis_xy) < 0.1)&& (Math.Abs(_distance_z - currdis_z) < 0.1))
{

View File

@ -418,7 +418,7 @@ namespace Plane.Copters
return !anotherSetModeActionCalled && Mode == mode;
}
protected override async Task FlyToCoreAsync(double lat, double lng, float alt, float flytime = 0)
protected override async Task FlyToCoreAsync(double lat, double lng, float alt, float flytime = 0, int flytype = 0)
{
if (!IsEmergencyHoverActive)
{

View File

@ -34,6 +34,7 @@
<Compile Include="$(MSBuildThisFileDirectory)CopterControllers\CopterControllerBase.cs" />
<Compile Include="$(MSBuildThisFileDirectory)CopterControllers\CopterControllerManager.cs" />
<Compile Include="$(MSBuildThisFileDirectory)CopterControllers\FlyToController.cs" />
<Compile Include="$(MSBuildThisFileDirectory)CopterControllers\GuidController.cs" />
<Compile Include="$(MSBuildThisFileDirectory)CopterControllers\KeyboardController.cs" />
<Compile Include="$(MSBuildThisFileDirectory)CopterManagement\CopterFactory.cs" />
<Compile Include="$(MSBuildThisFileDirectory)CopterManagement\SingleCopterManager.cs" />