wangbeihong/Smart-granary-code
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

添加 MQTT 命令处理功能，支持远程控制模式与阈值配置

Browse Source
This commit is contained in:
Wang Beihong
2026-04-22 16:49:00 +08:00
parent 0d117d9d47
commit e446b7515c
4 changed files with 311 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

122
main/main.cpp
View File

@@ -81,12 +81,85 @@ typedef struct
bool hot_on;
uint8_t su03t_last_msgno;
uint32_t su03t_rx_count;
// ======== 新增：阈值与模式配置 ========
bool auto_mode; // 自动/手动模式：true=自动，false=手动
float th_temp_h; // 制冷阈值（温度高于此值开启制冷）
float th_temp_l; // 制热阈值（温度低于此值开启制热）
float th_hum_h; // 湿度排风阈值
float th_gas_h; // 烟雾/有害气体排风阈值
} env_data_t;
static env_data_t s_env_data;
static SemaphoreHandle_t s_env_data_lock = NULL;
static volatile bool s_ui_ready = false;
/* 函数: app_mqtt_cmd_handler
* 作用: 解析并处理远端下发的 MQTT 配置项和手动控制指令
*/
static void app_mqtt_cmd_handler(const char *topic, const char *payload, int len)
{
// 如果不是下发的命令主题则忽略（可根据需要支持通配符判断，这里简单处理）
// 将 payload 拷贝并追加 \0 变为合法字符串
char *json_str = (char*)malloc(len + 1);
if (!json_str) return;
memcpy(json_str, payload, len);
json_str[len] = '\0';
cJSON *root = cJSON_Parse(json_str);
if (root)
{
bool auto_mode = false; // 默认手动
if (s_env_data_lock)
{
xSemaphoreTake(s_env_data_lock, portMAX_DELAY);
// 1. 解析模式
cJSON *item = cJSON_GetObjectItem(root, "mode");
if (item && cJSON_IsString(item)) {
if (strcmp(item->valuestring, "auto") == 0) s_env_data.auto_mode = true;
else if (strcmp(item->valuestring, "manual") == 0) s_env_data.auto_mode = false;
}
// 2. 解析阈值配置
item = cJSON_GetObjectItem(root, "th_temp_h");
if (item && cJSON_IsNumber(item)) s_env_data.th_temp_h = item->valuedouble;
item = cJSON_GetObjectItem(root, "th_temp_l");
if (item && cJSON_IsNumber(item)) s_env_data.th_temp_l = item->valuedouble;
item = cJSON_GetObjectItem(root, "th_hum_h");
if (item && cJSON_IsNumber(item)) s_env_data.th_hum_h = item->valuedouble;
item = cJSON_GetObjectItem(root, "th_gas_h");
if (item && cJSON_IsNumber(item)) s_env_data.th_gas_h = item->valuedouble;
auto_mode = s_env_data.auto_mode;
xSemaphoreGive(s_env_data_lock);
}
// 3. 在手动模式下响应远程控制
if (!auto_mode)
{
cJSON *item = cJSON_GetObjectItem(root, "fan");
if (item && cJSON_IsBool(item)) relay_ctrl_set(RELAY_CTRL_ID_1, cJSON_IsTrue(item));
item = cJSON_GetObjectItem(root, "light");
if (item && cJSON_IsBool(item)) relay_ctrl_set(RELAY_CTRL_ID_2, cJSON_IsTrue(item));
item = cJSON_GetObjectItem(root, "cool");
if (item && cJSON_IsBool(item)) relay_ctrl_set(RELAY_CTRL_ID_3, cJSON_IsTrue(item));
item = cJSON_GetObjectItem(root, "hot");
if (item && cJSON_IsBool(item)) relay_ctrl_set(RELAY_CTRL_ID_4, cJSON_IsTrue(item));
}
cJSON_Delete(root);
}
free(json_str);
}
/* 函数: reconfigure_twdt
* 作用: 执行模块内与函数名对应的业务逻辑。
* 重点: 关注输入合法性、返回码与并发安全。
@@ -503,6 +576,13 @@ static void mqtt_publish_task(void *arg)
cJSON_AddNumberToObject(root, "su03t_last_msgno", local_data.su03t_last_msgno);
cJSON_AddNumberToObject(root, "su03t_rx_count", local_data.su03t_rx_count);
// ======== 新增：系统模式与阈值 ========
cJSON_AddStringToObject(root, "mode", local_data.auto_mode ? "auto" : "manual");
cJSON_AddNumberToObject(root, "th_temp_h", local_data.th_temp_h);
cJSON_AddNumberToObject(root, "th_temp_l", local_data.th_temp_l);
cJSON_AddNumberToObject(root, "th_hum_h", local_data.th_hum_h);
cJSON_AddNumberToObject(root, "th_gas_h", local_data.th_gas_h);
// 补充系统及其他分析状态数据
cJSON_AddStringToObject(root, "ip_address", wifi_connect_get_ip());
cJSON_AddStringToObject(root, "food_status", local_data.co2 >= CO2_SPOILAGE_THRESHOLD_PPM ? "spoilage" : "good");
@@ -519,7 +599,7 @@ static void mqtt_publish_task(void *arg)
}
}
}
vTaskDelay(pdMS_TO_TICKS(5000)); // 每5秒发布一次
vTaskDelay(pdMS_TO_TICKS(1000)); // 每1秒发布一次
}
}
@@ -532,6 +612,13 @@ extern "C" void app_main(void)
vTaskDelay(pdMS_TO_TICKS(100));
ESP_LOGI(TAG, "--- APP STARTING ---");
s_env_data_lock = xSemaphoreCreateMutex();
// 初始化默认配置与阈值
s_env_data.auto_mode = false; // 默认手动模式
s_env_data.th_temp_h = 35.0f; // 超过 35度 制冷
s_env_data.th_temp_l = 15.0f; // 低于 15度 制热
s_env_data.th_hum_h = 70.0f; // 湿度高于 70% 通风
s_env_data.th_gas_h = 20.0f; // 气体浓度高于 20% 通风
// 1. 初始化 Wi-Fi
ESP_ERROR_CHECK(wifi_connect_init());
@@ -554,6 +641,8 @@ extern "C" void app_main(void)
{
set_var_system_ip(wifi_connect_get_ip());
// 注册 MQTT 数据接收回调
agri_env_set_mqtt_cmd_cb(app_mqtt_cmd_handler);
esp_err_t err = agri_env_mqtt_start();
if (err != ESP_OK)
{
@@ -672,6 +761,13 @@ extern "C" void app_main(void)
}
// 提取自动化逻辑所需参数
bool auto_mode = false; // 默认手动
float th_temp_h = 35.0f;
float th_temp_l = 15.0f;
float th_hum_h = 70.0f;
float th_gas_h = 20.0f;
// 数据存入共享结构体
if (s_env_data_lock) {
xSemaphoreTake(s_env_data_lock, portMAX_DELAY);
@@ -684,8 +780,32 @@ extern "C" void app_main(void)
if (jw01.tvoc_valid) s_env_data.tvoc = jw01.tvoc;
if (jw01.hcho_valid) s_env_data.hcho = jw01.hcho;
if (jw01.co2_valid) s_env_data.co2 = jw01.co2;
auto_mode = s_env_data.auto_mode;
th_temp_h = s_env_data.th_temp_h;
th_temp_l = s_env_data.th_temp_l;
th_hum_h = s_env_data.th_hum_h;
th_gas_h = s_env_data.th_gas_h;
xSemaphoreGive(s_env_data_lock);
}
// ======== 新增：自动联动逻辑 ========
if (auto_mode)
{
// 制冷控制（温度高于上限）
if (temp >= th_temp_h) relay_ctrl_set(RELAY_CTRL_ID_3, true);
else relay_ctrl_set(RELAY_CTRL_ID_3, false);
// 制热控制（温度低于下限）
if (temp <= th_temp_l) relay_ctrl_set(RELAY_CTRL_ID_4, true);
else relay_ctrl_set(RELAY_CTRL_ID_4, false);
// 风扇控制（湿度或有害气体超标）
if (hum >= th_hum_h || gas_percent >= th_gas_h) relay_ctrl_set(RELAY_CTRL_ID_1, true);
else relay_ctrl_set(RELAY_CTRL_ID_1, false);
}
vTaskDelay(pdMS_TO_TICKS(1000));
} }, "sensor_task", 4096 * 3, (void *)aht30_dev, 6, NULL);