143 lines
5.9 KiB
Markdown
143 lines
5.9 KiB
Markdown
# Meshtastic MQTT Server
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## 运行
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```bash
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go run .
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```
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默认连接:
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- broker:`mqtt.meshtastic.org:1883`
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- username:`meshdev`
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- password:`large4cats`
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- topic:`msh/US/#`
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- PSK:`AQ==`
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也可以指定 topic:
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```bash
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go run . --topic 'msh/US/#'
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```
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多个 topic 可重复传入:
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```bash
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go run . --topic 'msh/US/#' --topic 'msh/EU_868/#'
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```
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## 参数
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```text
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--host MQTT broker hostname
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--port MQTT broker port
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--username MQTT username
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--password MQTT password
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--psk Base64 channel PSK used to try decrypting encrypted packets
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--topic Topic to subscribe; may be repeated
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--qos MQTT subscription QoS: 0, 1, or 2
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--client-id MQTT client id
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```
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## 控制台颜色说明
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程序会按数据包类型使用不同背景色,方便快速区分消息类型。
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| 背景色 | type | portnum | 含义 |
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|---|---|---|---|
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| 绿色 | `nodeinfo` | `NODEINFO_APP` | 节点信息包,包含节点 ID、长名称、短名称、硬件型号、角色、公钥等 |
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| 蓝色 | `map_report` | `MAP_REPORT_APP` | 地图报告包,包含节点名称、硬件、固件版本、区域、调制预设、位置等地图信息 |
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| 紫色 | `text_message` | `TEXT_MESSAGE_APP` | 聊天文本消息 |
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| 青色 | `position` | `POSITION_APP` | 位置包,会展开解析经纬度、海拔、时间、定位来源、精度、速度、卫星数等字段 |
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| 黄色 | `telemetry` | `TELEMETRY_APP` | 遥测包,会展开解析设备、电源、环境、空气质量、本地统计、健康、主机和流量管理指标 |
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| 灰色 | `routing` | `ROUTING_APP` | 路由控制包,常见于 ACK、NAK、路由错误等控制信息 |
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| 灰色 | `traceroute` | `TRACEROUTE_APP` | 路径追踪包,用于 mesh 网络路径探测 |
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| 红色 | error record | - | protobuf 解析失败、payload 解码失败或其他处理错误 |
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| 无颜色 | `encrypted_packet` | - | 加密包但当前 PSK/频道 hash 无法解密;这不一定是错误 |
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| 无颜色 | `decoded_packet` | 其他 portnum | 已解码/已解密,但程序尚未细分的其他应用包 |
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## 已展开解析的数据包
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### `position` / `POSITION_APP`
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位置包会从 Meshtastic `Position` payload 中展开常用字段,包括:
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- `latitude` / `longitude`:经纬度,已从 `latitude_i` / `longitude_i` 转换为浮点角度
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- `altitude`:海拔,单位米
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- `time` / `timestamp`:位置相关时间戳
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- `location_source`:定位来源,例如 `LOC_MANUAL`、`LOC_INTERNAL`、`LOC_EXTERNAL`
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- `altitude_source`:海拔来源,例如 `ALT_MANUAL`、`ALT_INTERNAL`、`ALT_BAROMETRIC`
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- `altitude_hae` / `altitude_geoidal_separation`:HAE 海拔和大地水准面分离值
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- `pdop` / `hdop` / `vdop`:定位精度因子,已从 1/100 单位转换为浮点值
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- `gps_accuracy`:GPS 精度,单位 mm
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- `ground_speed`:地面速度,单位 m/s
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- `ground_track`:地面航迹角,已从 1/100 度转换为度
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- `fix_quality` / `fix_type` / `sats_in_view`:GPS fix 质量、类型和可见卫星数
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- `sensor_id` / `next_update` / `seq_number` / `precision_bits`:传感器、更新间隔、序列号和位置精度位数
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### `telemetry` / `TELEMETRY_APP`
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遥测包会输出:
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- `time`:遥测时间戳
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- `telemetry_type`:具体 telemetry variant
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- `metrics`:展开后的指标对象
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当前支持的 `telemetry_type`:
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| telemetry_type | 含义 | 常见 metrics |
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| `device_metrics` | 设备状态 | `battery_level`、`voltage`、`channel_utilization`、`air_util_tx`、`uptime_seconds` |
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| `environment_metrics` | 环境传感器 | `temperature`、`relative_humidity`、`barometric_pressure`、`gas_resistance`、`lux`、`wind_speed`、`rainfall_1h` 等 |
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| `air_quality_metrics` | 空气质量 | `pm25_standard`、`pm100_standard`、`co2`、`pm_temperature`、`pm_humidity`、`pm_voc_idx` 等 |
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| `power_metrics` | 多通道电源数据 | `ch1_voltage`、`ch1_current` 到 `ch8_voltage`、`ch8_current` |
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| `local_stats` | 本地 mesh 统计 | `num_packets_tx`、`num_packets_rx`、`num_online_nodes`、`heap_free_bytes`、`noise_floor` 等 |
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| `health_metrics` | 健康数据 | `heart_bpm`、`spO2`、`temperature` |
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| `host_metrics` | Linux/Portduino 主机指标 | `uptime_seconds`、`freemem_bytes`、`diskfree1_bytes`、`load1`、`load5`、`load15`、`user_string` |
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| `traffic_management_stats` | 流量管理统计 | `packets_inspected`、`position_dedup_drops`、`rate_limit_drops`、`unknown_packet_drops` 等 |
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## 过滤规则
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程序默认不显示 `empty_packet`。
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`empty_packet` 指 `MeshPacket` 中没有 `decoded` 或 `encrypted` payload 的包,只包含类似 `from`、`to`、`id`、`via_mqtt` 等包头信息。根据固件源码分析,这类包通常不是普通业务数据,更多是 MQTT 回显/隐式 ACK 相关的元信息,对查看节点信息、地图报告和聊天内容价值较低。
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## 输出示例
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节点信息包:
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```json
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{"type":"nodeinfo","portnum":"NODEINFO_APP","from":"!a8dfd867","long_name":"Kabi Matrix 🖥️","short_name":"KaMX","hw_model":"PRIVATE_HW","role":"CLIENT_MUTE"}
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```
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地图报告包:
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```json
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{"type":"map_report","portnum":"MAP_REPORT_APP","from":"!675c9803","long_name":"PaulHome","latitude":42.51043,"longitude":-83.08624999999999,"hw_model":"PORTDUINO"}
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```
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聊天消息包:
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```json
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{"type":"text_message","portnum":"TEXT_MESSAGE_APP","from":"!12345678","text":"hello mesh"}
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```
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位置包:
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```json
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{"type":"position","portnum":"POSITION_APP","from":"!12345678","latitude":42.51043,"longitude":-83.08625,"altitude":192,"location_source":"LOC_INTERNAL","sats_in_view":8}
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```
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遥测包:
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```json
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{"type":"telemetry","portnum":"TELEMETRY_APP","from":"!12345678","telemetry_type":"device_metrics","metrics":{"battery_level":85,"voltage":4.1,"channel_utilization":2.3,"air_util_tx":0.5,"uptime_seconds":12345}}
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```
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解密失败的加密包:
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```json
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{"type":"encrypted_packet","decrypt_success":false,"decrypt_status":"channel hash mismatch","encrypted_len":43}
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```
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