97 lines
2.7 KiB
C++
97 lines
2.7 KiB
C++
#include <iostream>
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#include <vector>
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#include <chrono>
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#include <thread>
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#include <cstdlib> // rand()
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#include <ctime> // time()
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#include <unistd.h> // pour usleep()
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// === Parameters ===
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const int BPM_MIN = 50;
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const int BPM_MAX = 120;
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const int SAMPLE_INTERVAL_MS = 100; // Sampling every 10 ms
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const int THRESHOLD = 550; // Threshold for heartbeat detection
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const int NOISE_LEVEL = 100; // Simulated noise level
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// === Initialize random generator ===
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void initialiserRandom() {
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srand(static_cast<unsigned int>(time(0)));
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}
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// === Simulate heart signal from sensor ===
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int simulerSignalCardiaque() {
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static int t = 0;
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t++;
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// Simulate a peak every ~800 ms (≈75 BPM)
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if (t % 80 == 0) {
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return 700 + rand() % 50; // Simulated peak
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} else {
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return 300 + rand() % NOISE_LEVEL; // Background noise
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}
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}
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// === Simulate buzzer activation ===
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void activerBuzzer() {
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std::cout << " Buzzer active (ALERTE CARDIAQUE)!" << std::endl;
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}
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// === Simulate vibration motor activation ===
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void activerVibreur() {
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std::cout << " Vibreur active (ALERTE CARDIAQUE)!" << std::endl;
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}
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// === Simulate Bluetooth transmission ===
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void envoyerMessageBluetooth(bool urgence) {
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std::cout << " Message Bluetooth envoye: " << (urgence ? "TRUE (urgence)" : "FALSE (normal)") << std::endl;
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}
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// === Main program ===
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int main() {
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initialiserRandom();
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bool battementDetecte = false;
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auto dernierBattement = std::chrono::steady_clock::now();
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std::cout << " Demarrage de la simulation du capteur cardiaque...\n";
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while (true) {
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int signal = simulerSignalCardiaque();
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// Détection de battement
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if (signal > THRESHOLD && !battementDetecte) {
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auto maintenant = std::chrono::steady_clock::now();
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auto intervalle = std::chrono::duration_cast<std::chrono::milliseconds>(maintenant - dernierBattement).count();
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if (intervalle > 300) { // BPM > 200 => ignore
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int bpm = 60000 / intervalle;
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std::cout << " BPM mesure : " << bpm;
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bool anomalie = (bpm < BPM_MIN || bpm > BPM_MAX);
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if (anomalie) {
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std::cout << " [ANOMALIE]";
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activerBuzzer();
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activerVibreur();
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envoyerMessageBluetooth(true);
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} else {
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envoyerMessageBluetooth(false);
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}
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std::cout << std::endl;
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dernierBattement = maintenant;
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}
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battementDetecte = true;
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}
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// Prêt pour détecter le prochain battement
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if (signal < THRESHOLD) {
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battementDetecte = false;
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}
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usleep(SAMPLE_INTERVAL_MS);
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}
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return 0;
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}
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