wangfq
11d1a96d24
vd960DBN:
- heartbeat/sensor/initialize 发布统一走 dld960/{sn}/dev
- dev_initialize_pub 补 model/hard_ver/soft_ver，删 extra_info.version
DBNMQTTool:
- 协议版本号更新至 V1.03
- 协议 Topic 树和模拟页增加 initialize 支持
826 lines
17 KiB
Markdown
826 lines
17 KiB
Markdown
# DLD960 IoT 接口协议（MQTT + JSON）
|
||
|
||
> 基于《DLD960 串口通信协议》V1.01，将设备管理、参数配置、数据上报映射到 MQTT 协议。
|
||
> 交互格式：JSON。
|
||
|
||
---
|
||
|
||
# 1 通信说明
|
||
|
||
## 1.1 连接参数
|
||
|
||
| 项目 | 说明 |
|
||
|------|------|
|
||
| 协议 | MQTT 3.1.1 / 5.0 |
|
||
| 传输层 | TCP (TLS 可选) |
|
||
| QoS | 配置类 QoS 1，数据上报类 QoS 0/1 |
|
||
| 编码 | UTF-8 |
|
||
| 序列化 | JSON |
|
||
|
||
## 1.2 Topic 结构
|
||
|
||
协议仅使用两个主题，所有消息类型通过 JSON 内 `cmd` 字段区分。
|
||
|
||
```
|
||
dld960/{dev_serial}/{direction}
|
||
```
|
||
|
||
| 字段 | 说明 |
|
||
|------|------|
|
||
| `dev_serial` | 设备序列码（6字节十六进制字符串，如 `A1B2C3D4E5F6`） |
|
||
| `direction` | `srv` = 服务器下发（设备订阅），`dev` = 设备上报（服务器订阅） |
|
||
|
||
### 1.2.1 服务器下发 Topic — `dld960/{sn}/srv`
|
||
|
||
设备订阅此主题，接收服务器下发的所有命令（配置设置、查询、控制等）。
|
||
服务器发布到此主题。
|
||
|
||
对应串口 CMD：0x09 ~ 0x1F, 0x63, 0x64, 0xC5 等。
|
||
|
||
### 1.2.2 设备上报 Topic — `dld960/{sn}/dev`
|
||
|
||
设备发布到此主题，上报线圈数据、事件、心跳及命令响应。
|
||
服务器订阅此主题接收所有设备上行消息。
|
||
|
||
服务器端可订阅通配符 `dld960/+/dev` 监听所有设备。
|
||
|
||
---
|
||
|
||
# 2 JSON 消息格式
|
||
|
||
## 2.1 通用结构
|
||
|
||
```json
|
||
{
|
||
"msg_id": 12345,
|
||
"cmd": "dev_info_query",
|
||
"ts": 1719000000,
|
||
"data": { ... }
|
||
}
|
||
```
|
||
|
||
| 字段 | 类型 | 说明 |
|
||
|------|------|------|
|
||
| `msg_id` | uint32 | 消息序列号，递增，用于请求-响应匹配（由发起方生成） |
|
||
| `cmd` | string | 命令标识符 |
|
||
| `ts` | uint32 | Unix 时间戳（秒），发起方填充 |
|
||
| `data` | object | 命令参数，结构依 cmd 而定 |
|
||
|
||
## 2.2 响应通用结构
|
||
|
||
```json
|
||
{
|
||
"msg_id": 12345,
|
||
"cmd": "dev_info_query",
|
||
"ts": 1719000001,
|
||
"code": 0,
|
||
"msg": "success",
|
||
"data": { ... }
|
||
}
|
||
```
|
||
|
||
| 字段 | 类型 | 说明 |
|
||
|------|------|------|
|
||
| `code` | int | 0 = 成功，非 0 = 失败码 |
|
||
| `msg` | string | 错误描述（成功时为 `"success"`） |
|
||
|
||
### 错误码定义
|
||
|
||
| code | 说明 |
|
||
|------|------|
|
||
| 0 | 成功 |
|
||
| 1 | 参数错误（格式/范围不正确） |
|
||
| 2 | 密码验证失败 |
|
||
| 3 | 设备忙（操作执行中） |
|
||
| 4 | 不支持的命令 |
|
||
| 5 | 内部错误 |
|
||
| 6 | 数据超长 |
|
||
|
||
---
|
||
|
||
# 3 命令详表
|
||
|
||
| cmd | 说明 | 方向 | 对应串口 |
|
||
|-----|------|------|----------|
|
||
| `dev_serial_set` | 更改设备序列码 | srv→dev | 0x09 |
|
||
| `dev_info_query` | 查询设备信息 | srv→dev | 0x10 |
|
||
| `ssc_net_set` | 设置 SSC 网络配置 | srv→dev | 0x11 |
|
||
| `ssc_net_query` | 查询 SSC 网络配置 | srv→dev | 0x12 |
|
||
| `iot_net_set` | 设置 IoT 网络配置 | srv→dev | 0x13 |
|
||
| `iot_net_query` | 查询 IoT 网络配置 | srv→dev | 0x14 |
|
||
| `iot_topic_set` | 设置设备 Topic | srv→dev | 0x15 |
|
||
| `iot_topic_query` | 查询设备 Topic | srv→dev | 0x16 |
|
||
| `pwd_verify` | 验证设备密码 | srv→dev | 0x1C |
|
||
| `pwd_set` | 设置设备密码 | srv→dev | 0x1D |
|
||
| `factory_reset` | 设备出厂初始化 | srv→dev | 0x1E |
|
||
| `device_reset` | 设备复位 | srv→dev | 0x1F |
|
||
| `loop_param_set` | 设置车检器多路参数 | srv→dev | 0x63 |
|
||
| `loop_param_query` | 读取车检器多路参数 | srv→dev | 0x64 |
|
||
| `report_config` | 设置主动上报 | srv→dev | 0xC5 |
|
||
| `initialize` | 设备上电初始化登陆 | dev→srv | — |
|
||
| `loop_data` | 线圈传感数据上报 | dev→srv | 0xC0 |
|
||
| `event_report` | 事件上报 | dev→srv | — |
|
||
| `heartbeat` | 设备心跳 | dev→srv | — |
|
||
|
||
---
|
||
|
||
# 4 命令详情
|
||
|
||
## 4.1 更改设备序列码 `dev_serial_set`
|
||
|
||
> Topic: `dld960/{sn}/srv`
|
||
|
||
**请求：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 1,
|
||
"cmd": "dev_serial_set",
|
||
"ts": 1719000000,
|
||
"data": {
|
||
"dev_serial": "A1B2C3D4E5F6"
|
||
}
|
||
}
|
||
```
|
||
|
||
**响应：** Topic: `dld960/{sn}/dev`
|
||
|
||
```json
|
||
{
|
||
"msg_id": 1,
|
||
"cmd": "dev_serial_set",
|
||
"ts": 1719000001,
|
||
"code": 0,
|
||
"msg": "success"
|
||
}
|
||
```
|
||
|
||
## 4.2 查询设备信息 `dev_info_query`
|
||
|
||
> Topic: `dld960/{sn}/srv`
|
||
|
||
**请求：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 2,
|
||
"cmd": "dev_info_query",
|
||
"ts": 1719000000
|
||
}
|
||
```
|
||
|
||
**响应：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 2,
|
||
"cmd": "dev_info_query",
|
||
"ts": 1719000001,
|
||
"code": 0,
|
||
"msg": "success",
|
||
"data": {
|
||
"dev_serial": "A1B2C3D4E5F6",
|
||
"hard_ver": "1.1",
|
||
"soft_ver": "1.1",
|
||
"model": "DLD960",
|
||
"product_code": "960001",
|
||
"sub_code": {
|
||
"net": true,
|
||
"iot": true
|
||
},
|
||
"bus": {
|
||
"bus1": 0,
|
||
"bus2": 0,
|
||
"bus3": 0,
|
||
"bus4": 0
|
||
}
|
||
}
|
||
}
|
||
```
|
||
|
||
| data 字段 | 类型 | 说明 |
|
||
|-----------|------|------|
|
||
| `dev_serial` | string | 12 位十六进制序列码 |
|
||
| `hard_ver` | string | 硬件版本，格式 `"主.次"` |
|
||
| `soft_ver` | string | 软件版本，格式 `"主.次"` |
|
||
| `model` | string | 产品型号，1~10 字符 |
|
||
| `product_code` | string | 产品编码，6 位数字字符串 |
|
||
| `sub_code.net` | bool | 网络功能是否启用 |
|
||
| `sub_code.iot` | bool | IoT/MQTT 功能是否启用 |
|
||
| `bus.bus1~4` | uint8 | 各总线探头数 |
|
||
|
||
## 4.3 设置 SSC 网络配置 `ssc_net_set`
|
||
|
||
> Topic: `dld960/{sn}/srv`
|
||
|
||
**请求：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 3,
|
||
"cmd": "ssc_net_set",
|
||
"ts": 1719000000,
|
||
"data": {
|
||
"dev_ip": "192.168.1.100",
|
||
"subnet_mask": "255.255.255.0",
|
||
"route_ip": "192.168.1.1",
|
||
"lssc_ip": "192.168.1.200",
|
||
"dns": "8.8.8.8",
|
||
"port": 502
|
||
}
|
||
}
|
||
```
|
||
|
||
| data 字段 | 类型 | 说明 |
|
||
|-----------|------|------|
|
||
| `dev_ip` | string | 设备 IP 地址 |
|
||
| `subnet_mask` | string | 子网掩码 |
|
||
| `route_ip` | string | 网关地址 |
|
||
| `lssc_ip` | string | LSSC 服务器 IP |
|
||
| `dns` | string | DNS 服务器 IP |
|
||
| `port` | uint16 | 端口号 |
|
||
|
||
**响应：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 3,
|
||
"cmd": "ssc_net_set",
|
||
"ts": 1719000001,
|
||
"code": 0,
|
||
"msg": "success"
|
||
}
|
||
```
|
||
|
||
## 4.4 查询 SSC 网络配置 `ssc_net_query`
|
||
|
||
> Topic: `dld960/{sn}/srv`
|
||
|
||
**请求：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 4,
|
||
"cmd": "ssc_net_query",
|
||
"ts": 1719000000
|
||
}
|
||
```
|
||
|
||
**响应：** 返回字段同 4.3 的 `data`。
|
||
|
||
## 4.5 设置 IoT 网络配置 `iot_net_set`
|
||
|
||
> Topic: `dld960/{sn}/srv`
|
||
|
||
**请求：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 5,
|
||
"cmd": "iot_net_set",
|
||
"ts": 1719000000,
|
||
"data": {
|
||
"host": "mqtt.example.com",
|
||
"port": 1883,
|
||
"client_id": "dld960_A1B2C3D4E5F6",
|
||
"username": "admin",
|
||
"password": "secret"
|
||
}
|
||
}
|
||
```
|
||
|
||
| data 字段 | 类型 | 说明 |
|
||
|-----------|------|------|
|
||
| `host` | string | MQTT Broker 域名或 IP |
|
||
| `port` | uint16 | MQTT 端口，默认 1883 |
|
||
| `client_id` | string | MQTT Client ID，空时用空格 |
|
||
| `username` | string | MQTT 用户名 |
|
||
| `password` | string | MQTT 密码 |
|
||
|
||
**响应：** 标准成功/失败。
|
||
|
||
## 4.6 查询 IoT 网络配置 `iot_net_query`
|
||
|
||
> Topic: `dld960/{sn}/srv`
|
||
|
||
**请求：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 6,
|
||
"cmd": "iot_net_query",
|
||
"ts": 1719000000
|
||
}
|
||
```
|
||
|
||
**响应：** 返回字段同 4.5 的 `data`。
|
||
|
||
## 4.7 设置设备 Topic `iot_topic_set`
|
||
|
||
> Topic: `dld960/{sn}/srv`
|
||
|
||
**请求：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 7,
|
||
"cmd": "iot_topic_set",
|
||
"ts": 1719000000,
|
||
"data": {
|
||
"client_id_enable": true,
|
||
"topic_pub": "dld960/data/A1B2C3D4E5F6",
|
||
"topic_sub": "dld960/cmd/A1B2C3D4E5F6"
|
||
}
|
||
}
|
||
```
|
||
|
||
**响应：** 标准成功/失败。
|
||
|
||
## 4.8 查询设备 Topic `iot_topic_query`
|
||
|
||
> Topic: `dld960/{sn}/srv`
|
||
|
||
**请求：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 8,
|
||
"cmd": "iot_topic_query",
|
||
"ts": 1719000000
|
||
}
|
||
```
|
||
|
||
**响应：** 返回字段同 4.7 的 `data`。
|
||
|
||
## 4.9 验证设备密码 `pwd_verify`
|
||
|
||
> Topic: `dld960/{sn}/srv`
|
||
|
||
**请求：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 9,
|
||
"cmd": "pwd_verify",
|
||
"ts": 1719000000,
|
||
"data": {
|
||
"password": "123456"
|
||
}
|
||
}
|
||
```
|
||
|
||
| data 字段 | 类型 | 说明 |
|
||
|-----------|------|------|
|
||
| `password` | string | 6 位数字密码 |
|
||
|
||
**响应：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 9,
|
||
"cmd": "pwd_verify",
|
||
"ts": 1719000001,
|
||
"code": 0,
|
||
"msg": "success"
|
||
}
|
||
```
|
||
|
||
## 4.10 设置设备密码 `pwd_set`
|
||
|
||
> Topic: `dld960/{sn}/srv`
|
||
|
||
**请求：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 10,
|
||
"cmd": "pwd_set",
|
||
"ts": 1719000000,
|
||
"data": {
|
||
"old_password": "123456",
|
||
"new_password": "654321"
|
||
}
|
||
}
|
||
```
|
||
|
||
**响应：** 标准成功/失败。旧密码错误时 `code=2`。
|
||
|
||
## 4.11 设备出厂初始化 `factory_reset`
|
||
|
||
> Topic: `dld960/{sn}/srv`
|
||
|
||
**请求：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 11,
|
||
"cmd": "factory_reset",
|
||
"ts": 1719000000
|
||
}
|
||
```
|
||
|
||
**响应：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 11,
|
||
"cmd": "factory_reset",
|
||
"ts": 1719000001,
|
||
"code": 0,
|
||
"msg": "success"
|
||
}
|
||
```
|
||
|
||
## 4.12 设备复位 `device_reset`
|
||
|
||
> Topic: `dld960/{sn}/srv`
|
||
|
||
**请求：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 12,
|
||
"cmd": "device_reset",
|
||
"ts": 1719000000
|
||
}
|
||
```
|
||
|
||
无响应（设备复位后断开连接）。
|
||
|
||
## 4.13 设置车检器多路参数 `loop_param_set`
|
||
|
||
> Topic: `dld960/{sn}/srv`
|
||
|
||
**请求：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 13,
|
||
"cmd": "loop_param_set",
|
||
"ts": 1719000000,
|
||
"data": {
|
||
"auto_mode": false,
|
||
"channels": [
|
||
{
|
||
"ch": 1,
|
||
"sens": 7,
|
||
"level": "high",
|
||
"delay": 0,
|
||
"output": "exist",
|
||
"exist": 0,
|
||
"dir": 0,
|
||
"safe": 0,
|
||
"fun_mode": 0
|
||
},
|
||
{
|
||
"ch": 2,
|
||
"sens": 7,
|
||
"level": "mid_high",
|
||
"delay": 5,
|
||
"output": "enter_pulse",
|
||
"exist": 10,
|
||
"dir": 0,
|
||
"safe": 0,
|
||
"fun_mode": 0
|
||
},
|
||
{
|
||
"ch": 3,
|
||
"sens": 5,
|
||
"level": "mid_low",
|
||
"delay": 0,
|
||
"output": "exist",
|
||
"exist": 0,
|
||
"dir": 1,
|
||
"safe": 5,
|
||
"fun_mode": 0
|
||
},
|
||
{
|
||
"ch": 4,
|
||
"sens": 8,
|
||
"level": "low",
|
||
"delay": 10,
|
||
"output": "leave_pulse",
|
||
"exist": 15,
|
||
"dir": 0,
|
||
"safe": 0,
|
||
"fun_mode": 0
|
||
}
|
||
]
|
||
}
|
||
}
|
||
```
|
||
|
||
| data 字段 | 类型 | 说明 |
|
||
|-----------|------|------|
|
||
| `auto_mode` | bool | 自动调频模式，默认 false |
|
||
| `channels` | array | 各路通道参数，1~4 路 |
|
||
| `channels[].ch` | uint8 | 通道号 1~4 |
|
||
| `channels[].sens` | uint8 | sensitivity, 灵敏度 0~9，默认 7 |
|
||
| `channels[].level` | string | freq_level, `"high"`(33nF) / `"mid_high"`(43nF) / `"mid_low"`(66nF) / `"low"`(76nF) |
|
||
| `channels[].delay` | uint8 | loop_delay, 延时时间，0~200（×0.1s），最大 20s |
|
||
| `channels[].output` | string | exist_mode, `"exist"` / `"enter_pulse"` / `"leave_pulse"` / `"direction"` |
|
||
| `channels[].exist` | uint8 | output_mode, 存在方式，0=永久，非0=分钟数 |
|
||
| `channels[].dir` | uint8 | direction_mode, 方向判别模式，0=触发，1~6=方向输出 |
|
||
| `channels[].safe` | uint8 | safe_mode, 安全模式，0=关闭，非0=分钟数 |
|
||
| `channels[].fun_mode` | uint8 | function_mode, 功能模式 |
|
||
|
||
**响应：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 13,
|
||
"cmd": "loop_param_set",
|
||
"ts": 1719000001,
|
||
"code": 0,
|
||
"msg": "success"
|
||
}
|
||
```
|
||
|
||
## 4.14 读取车检器多路参数 `loop_param_query`
|
||
|
||
> Topic: `dld960/{sn}/srv`
|
||
|
||
**请求：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 14,
|
||
"cmd": "loop_param_query",
|
||
"ts": 1719000000
|
||
}
|
||
```
|
||
|
||
**响应：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 14,
|
||
"cmd": "loop_param_query",
|
||
"ts": 1719000001,
|
||
"code": 0,
|
||
"msg": "success",
|
||
"data": {
|
||
"auto_mode": false,
|
||
"channels": [
|
||
{
|
||
"ch": 1,
|
||
"sens": 7,
|
||
"level": "high",
|
||
"delay": 0,
|
||
"output": "exist",
|
||
"exist": 0,
|
||
"dir": 0,
|
||
"safe": 0,
|
||
"fun_mode": 0,
|
||
"f_initial": 105300,
|
||
"f_current": 105280,
|
||
"diff": 20
|
||
}
|
||
]
|
||
}
|
||
}
|
||
```
|
||
|
||
| 额外字段 | 类型 | 单位 | 说明 |
|
||
|----------|------|------|------|
|
||
| `f_initial` | uint32 | Hz | freq_initial, 初始频率 |
|
||
| `f_current` | uint32 | Hz | freq_current, 当前实时频率 |
|
||
| `diff` | uint32 | Hz | 变化量（绝对值） |
|
||
|
||
## 4.15 设置主动上报 `report_config`
|
||
|
||
> Topic: `dld960/{sn}/srv`
|
||
|
||
**请求：**
|
||
|
||
```json
|
||
{
|
||
"msg_id": 15,
|
||
"cmd": "report_config",
|
||
"ts": 1719000000,
|
||
"data": {
|
||
"sensor_type": 12,
|
||
"enable": true,
|
||
"once": false,
|
||
"env_eval": false,
|
||
"interval": 5,
|
||
"ack_required": false,
|
||
"timeout": 0
|
||
}
|
||
}
|
||
```
|
||
|
||
| data 字段 | 类型 | 说明 |
|
||
|-----------|------|------|
|
||
| `sensor_type` | uint8 | 传感器类型，线圈=0x0C(12) |
|
||
| `enable` | bool | 是否使能主动上报 |
|
||
| `once` | bool | 仅上报一次（查询模式） |
|
||
| `env_eval` | bool | 环境评估使能 |
|
||
| `interval` | uint8 | 上报间隔（秒），0=实时 |
|
||
| `ack_required` | bool | 上报是否需要确认 |
|
||
| `timeout` | uint8 | 超时时间（分钟），0=无限制 |
|
||
|
||
**响应：** 标准成功/失败。
|
||
|
||
---
|
||
|
||
# 5 设备主动上报
|
||
|
||
## 5.1 设备上电登陆信息 `initialize`
|
||
> Topic: `dld960/{sn}/dev`
|
||
> QoS: 0/1
|
||
|
||
```json
|
||
{
|
||
"msg_id": 1,
|
||
"cmd": "initialize",
|
||
"ts": 1719000000,
|
||
"data": {
|
||
"dev_serial":"A1B2C3D4E5F6",
|
||
"model": "DLD960",
|
||
"hard_ver": "1.0",
|
||
"soft_ver": "1.0",
|
||
"extra_info": {
|
||
"code": "869756049404948",
|
||
"csq": "21",
|
||
"location": "113.9237976,022.6400375",
|
||
}
|
||
}
|
||
}
|
||
```
|
||
|
||
| 字段 | 类型 | 说明 |
|
||
|------|------|------|
|
||
| `data.dev_serial` | string | 设备序列码 |
|
||
| `data.model` | string | 产品型号 |
|
||
| `data.hard_ver` | string | 硬件版本 |
|
||
| `data.soft_ver` | string | 固件版本 |
|
||
| `data.extra_info.code` | string | 可选，设备代码如IMSI/ICCID |
|
||
| `data.extra_info.csq` | string | 可选，当前信号强度 |
|
||
| `data.extra_info.location` | string | 可选，经纬度（经度,纬度） |
|
||
|
||
|
||
## 5.2 线圈传感数据 `loop_data`
|
||
|
||
> Topic: `dld960/{sn}/dev`
|
||
> QoS: 0/1
|
||
|
||
```json
|
||
{
|
||
"msg_id": 100,
|
||
"cmd": "loop_data",
|
||
"ts": 1719000100,
|
||
"data": {
|
||
"channels": [
|
||
{
|
||
"ch": 1,
|
||
"level": "high",
|
||
"iscar": false,
|
||
"loop_ok": true,
|
||
"freq": 105280,
|
||
"diff": 20,
|
||
"sens": 7,
|
||
"cndtn": 0,
|
||
"misc": {
|
||
"type": "time",
|
||
"value": 0
|
||
}
|
||
},
|
||
{
|
||
"ch": 2,
|
||
"level": "mid_high",
|
||
"iscar": true,
|
||
"loop_ok": true,
|
||
"freq": 98700,
|
||
"diff": 1500,
|
||
"sens": 7,
|
||
"cndtn": 2,
|
||
"misc": {
|
||
"type": "time",
|
||
"value": 350
|
||
}
|
||
},
|
||
{
|
||
"ch": 3,
|
||
"level": "mid_low",
|
||
"iscar": false,
|
||
"loop_ok": false,
|
||
"freq": 0,
|
||
"diff": 0,
|
||
"sens": 5,
|
||
"cndtn": 0,
|
||
"misc": {
|
||
"type": "cut_count",
|
||
"value": 3
|
||
}
|
||
},
|
||
{
|
||
"ch": 4,
|
||
"level": "low",
|
||
"iscar": false,
|
||
"loop_ok": true,
|
||
"freq": 62100,
|
||
"diff": 5,
|
||
"sens": 8,
|
||
"cndtn": 0,
|
||
"misc": {
|
||
"type": "flow_count",
|
||
"value": 128
|
||
}
|
||
}
|
||
]
|
||
}
|
||
}
|
||
```
|
||
|
||
| 通道字段 | 类型 | 说明 |
|
||
|----------|------|------|
|
||
| `ch` | uint8 | 通道号 1~4 |
|
||
| `level` | string | freq_level 线圈高低频档位 |
|
||
| `iscar` | bool | 是否有车 |
|
||
| `loop_ok` | bool | 线圈是否正常（false=断开） |
|
||
| `freq` | uint32 | 当前频率 (Hz) |
|
||
| `diff` | uint32 | 变化量 |
|
||
| `sens` | uint8 | sensitivity, 当前灵敏度等级 |
|
||
| `cndtn` | uint8 | condition, 环境状态评估值（越大干扰越大） |
|
||
| `misc.type` | string | `"time"`(时间量) / `"cut_count"`(断开次数) / `"flow_count"`(车流量) |
|
||
| `misc.value` | uint32 | 杂项数值（时间量单位 50ms） |
|
||
|
||
## 5.3 事件上报 `event_report`
|
||
|
||
> Topic: `dld960/{sn}/dev`
|
||
|
||
设备检测到事件时主动上报，非周期性。
|
||
|
||
```json
|
||
{
|
||
"msg_id": 101,
|
||
"cmd": "event_report",
|
||
"ts": 1719000200,
|
||
"data": {
|
||
"events": [
|
||
{
|
||
"type": "car_enter",
|
||
"ch": 2,
|
||
"value": 0
|
||
},
|
||
{
|
||
"type": "car_leave",
|
||
"ch": 2,
|
||
"value": 350
|
||
},
|
||
{
|
||
"type": "loop_cut",
|
||
"ch": 3,
|
||
"value": 0
|
||
}
|
||
]
|
||
}
|
||
}
|
||
```
|
||
|
||
| 事件类型 `type` | 说明 | `value` 含义 |
|
||
|----------------|------|-------------|
|
||
| `car_enter` | 车辆进入 | 0 |
|
||
| `car_leave` | 车辆离开 | 通过时间 (×50ms) |
|
||
| `loop_cut` | 线圈断开 | 0 |
|
||
| `loop_restore` | 线圈恢复 | 断开持续时长 (×50ms) |
|
||
|
||
## 5.4 设备心跳 `heartbeat`
|
||
|
||
> Topic: `dld960/{sn}/dev`
|
||
> 周期：默认 60 秒
|
||
|
||
```json
|
||
{
|
||
"msg_id": 200,
|
||
"cmd": "heartbeat",
|
||
"ts": 1719000060,
|
||
"data": {
|
||
"uptime": 3600,
|
||
"loop_status": [true, true, false, true],
|
||
"net_status": true,
|
||
"iot_status": true
|
||
}
|
||
}
|
||
```
|
||
|
||
| data 字段 | 类型 | 说明 |
|
||
|-----------|------|------|
|
||
| `uptime` | uint32 | 设备运行时长（秒） |
|
||
| `loop_status` | bool[4] | 各路线圈是否正常 |
|
||
| `net_status` | bool | 以太网连接状态 |
|
||
| `iot_status` | bool | MQTT 连接状态 |
|
||
|
||
---
|
||
|
||
# 修订记录
|
||
|
||
| 版本 | 修订时间 | 修订说明 | 修订人 |
|
||
|------|----------|----------|--------|
|
||
| V1.00 | 2026-06-22 | 初始版本，基于串口协议 V1.01 | wangfq |
|
||
| V1.01 | 2026-07-07 | Topic 压缩为双主题（`{sn}/srv` + `{sn}/dev`），消息类型由 `cmd` 字段区分 | wangfq |
|
||
| V1.02 | 2026-07-09 | 缩写相关字段 | wangfq |
|
||
| V1.03 | 2026-07-09 | 增加设备上电初始化指令 | wangfq |
|
||
|