74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
/**
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* @file DashboardFetcher.cpp
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* @brief 本地环境数据聚合器实现（无需后端服务）。
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*/
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#include "DashboardFetcher.h"
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#include <cmath>
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#include <cstdio>
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#include <ctime>
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#include "esp_log.h"
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static const char *TAG = "DashboardFetcher";
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DashboardFetcher::DashboardFetcher(SensorDriver &sensorDriver,
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Dht11Driver &dht11Driver)
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: sensorDriver_(sensorDriver), dht11Driver_(dht11Driver) {}
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DashboardFetcher::~DashboardFetcher() {}
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std::optional<DashboardData> DashboardFetcher::fetch() {
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ESP_LOGI(TAG, "开始执行本地传感器采集与数据聚合...");
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DashboardData data;
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char buf[32];
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// 1. 读取 DHT11 温湿度
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float temp = NAN;
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float humi = NAN;
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bool dhtOk = dht11Driver_.read(temp, humi);
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if (dhtOk && !std::isnan(temp)) {
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snprintf(buf, sizeof(buf), "%.1f", temp);
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data.temperature = buf;
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}
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if (dhtOk && !std::isnan(humi)) {
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snprintf(buf, sizeof(buf), "%.1f", humi);
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data.humidity = buf;
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}
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// 2. 读取 UART 空气质量传感器（CO2, TVOC, CH2O）
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SensorReading air = sensorDriver_.read();
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if (!std::isnan(air.co2) && air.co2 > 0) {
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snprintf(buf, sizeof(buf), "%.0f", air.co2);
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data.co2 = buf;
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}
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if (!std::isnan(air.tvoc) && air.tvoc >= 0) {
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snprintf(buf, sizeof(buf), "%.2f", air.tvoc);
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data.tvoc = buf;
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}
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if (!std::isnan(air.ch2o) && air.ch2o >= 0) {
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snprintf(buf, sizeof(buf), "%.3f", air.ch2o);
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data.ch2o = buf;
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}
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// 3. 读取本地系统时间（通过 NTP 同步）
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time_t now = time(nullptr);
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struct tm timeinfo;
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localtime_r(&now, &timeinfo);
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if (timeinfo.tm_year >= (2020 - 1900)) {
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snprintf(buf, sizeof(buf), "%02d:%02d", timeinfo.tm_hour, timeinfo.tm_min);
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data.lastReport = buf;
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} else {
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data.lastReport = "--:--";
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}
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ESP_LOGI(TAG, "本地数据聚合完成: 温度=%s, 湿度=%s, CO2=%s, TVOC=%s, CH2O=%s, 时间=%s",
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data.temperature.c_str(), data.humidity.c_str(),
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data.co2.c_str(), data.tvoc.c_str(), data.ch2o.c_str(),
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data.lastReport.c_str());
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return data;
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}
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