You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
AirTrapMine/src/GUI/command_sender.py

90 lines
2.9 KiB
Python

#!/usr/bin/env python3
"""
指令發送模組
負責將目標位置轉成具體的通訊指令發送到飛控
現階段: MavlinkSender (直接 pymavlink 發送)
未來: 替換為 ROS2Sender (發到 ROS2 topic fc_network_adapter 轉發)
"""
from abc import ABC, abstractmethod
from pymavlink import mavutil
class CommandSender(ABC):
"""指令發送抽象介面"""
@abstractmethod
def send_position_global(self, sysid, lat, lon, alt):
"""
發送全球座標位置指令
Args:
sysid: 目標無人機的 MAVLink system ID
lat: 緯度 ()
lon: 經度 ()
alt: 高度 (公尺)
"""
pass
@abstractmethod
def close(self):
"""關閉連線"""
pass
class MavlinkSender(CommandSender):
"""
MAVLink 直接發送 (驗證階段用)
透過 SET_POSITION_TARGET_GLOBAL_INT 發送目標位置
使用方式:
sender = MavlinkSender("udpout:127.0.0.1:14550")
sender.send_position_global(sysid=1, lat=24.123, lon=120.567, alt=10.0)
"""
# type_mask: 只使用位置 (lat, lon, alt)
# 忽略速度 (bit 3,4,5)、加速度 (bit 6,7,8)、yaw (bit 10)、yaw_rate (bit 11)
TYPE_MASK_POSITION_ONLY = (
0b0000_1101_1111_1000 # = 0x0DF8
)
def __init__(self, connection_string="udpout:127.0.0.1:14550"):
"""
Args:
connection_string: MAVLink 連線字串
SITL 範例: "udpout:127.0.0.1:14550"
"""
self.connection_string = connection_string
self.mav = mavutil.mavlink_connection(connection_string)
print(f"MavlinkSender 已建立連線: {connection_string}")
def send_position_global(self, sysid, lat, lon, alt):
"""
發送 SET_POSITION_TARGET_GLOBAL_INT
注意:
- coordinate_frame 使用 MAV_FRAME_GLOBAL_RELATIVE_ALT_INT
高度是相對起飛點的高度 (公尺)
- 如果 FormationPlanner 產出的 alt AMSL 絕對高度
需要在外部先減去起飛點高度再傳入
"""
self.mav.mav.set_position_target_global_int_send(
0, # time_boot_ms (不使用)
sysid, # target_system
1, # target_component (autopilot)
mavutil.mavlink.MAV_FRAME_GLOBAL_RELATIVE_ALT_INT,
self.TYPE_MASK_POSITION_ONLY,
int(lat * 1e7), # lat_int
int(lon * 1e7), # lon_int
float(alt), # alt
0, 0, 0, # vx, vy, vz (忽略)
0, 0, 0, # afx, afy, afz (忽略)
0, 0 # yaw, yaw_rate (忽略)
)
def close(self):
"""關閉 MAVLink 連線"""
if self.mav:
self.mav.close()
self.mav = None
print("MavlinkSender 已關閉")