patients in hospital left without any attendee during emergency.

Sos button in every room where the patient gets to click on it during any emergency or discomfort in their hospital room.

Bangalore

Solution
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Component Description
Technical Components ### Technical Analysis and Specifications **1. Technical Components Needed:** - **Fingerprint Touch Sensor:** Used for patient interaction, can be basic touch detection or advanced biometric verification. For advanced security, consider modules like Adafruit’s fingerprint sensor or SparkFun’s biometric sensor. - **Microcontroller (MCU):** Acts as the brain of the room unit. Popular choices include Arduino, ESP32, or Raspberry Pi Pico. ESP32 is recommended for its built-in Wi-Fi/Bluetooth capabilities. - **Display Board:** Central display system to show alerts. Options include LED ticker displays, LCD/LED screens, or integration with existing nurse station dashboards. - **Buzzer/Alarm:** For audio alerts. A simple piezo buzzer or a louder siren module can be used depending on the required volume. - **Wireless Communication:** For sending alerts from the room unit to the central display. Options include Wi-Fi, Bluetooth, or LoRa for longer ranges. - **Power Supply:** In-wall power or rechargeable batteries for room units. The central display can be powered via mains. **2. Recommended Tech Stack:** - **Room Unit:** - **MCU:** ESP32 (Wi-Fi/Bluetooth, GPIOs for sensors, low cost). - **Sensor:** Basic capacitive touch sensor (e.g., TTP223) or fingerprint sensor (e.g., R305). - **Power:** Rechargeable LiPo battery with charging circuit or in-wall power. - **Communication:** Wi-Fi (MQTT protocol for sending alerts to the central server). - **Central Display System:** - **MCU/Computer:** Raspberry Pi or a dedicated PC/server. - **Display:** LED ticker display (e.g., MAX7219-based) or LCD screen. - **Buzzer:** Piezo buzzer or louder siren module. - **Software:** Python script or Node.js server to receive MQTT alerts and control the display/buzzer. **3. Detailed Implementation Steps:** 1. **Room Unit Setup:** - Connect the touch/fingerprint sensor to the ESP32. - Program the ESP32 to detect a touch/fingerprint and send an MQTT message with the room ID to the central server. - Power the unit via battery or in-wall power. 2. **Central Display Setup:** - Set up a Raspberry Pi or PC to subscribe to MQTT topics. - Connect the display and buzzer to the Pi/PC. - Write a script to parse incoming MQTT messages, display the room ID and "Emergency" on the screen, and trigger the buzzer. 3. **Network Setup:** - Ensure all room units and the central display are on the same Wi-Fi network. - Set up an MQTT broker (e.g., Mosquitto) on the Pi/PC or use a cloud-based broker. 4. **Testing:** - Simulate emergency alerts from room units and verify the central display responds correctly. - Test battery life and reliability of wireless communication. **4. Required Technical Learning:** - **MQTT Protocol:** Learn how to publish/subscribe to topics for communication between devices. - **ESP32 Programming:** Understand how to use GPIO, Wi-Fi, and MQTT libraries (Arduino IDE or PlatformIO). - **Fingerprint Sensor Integration:** Learn how to interface with the sensor and store/verify fingerprints if needed. - **Display Control:** Learn how to drive LED/LCD displays (e.g., using Python or C++ libraries). **5. Budget Calculation:** **Hardware Costs (per room unit):** - ESP32: $5 - Touch Sensor (basic): $1 or Fingerprint Sensor (advanced): $10 - Battery (if needed): $5 - Enclosure and wiring: $3 - **Total per room unit (basic):** $9 (touch) or $18 (fingerprint) - **Total for 10 rooms (basic):** $90 (touch) or $180 (fingerprint) **Central Display System:** - Raspberry Pi: $35 - LED Ticker Display: $20 or LCD Screen: $50 - Buzzer: $2 - **Total:** $57 (LED) or $87 (LCD) **Networking:** - Wi-Fi Router: $50 (if not already available) **Software Costs:** - MQTT Broker (Mosquitto is free; cloud-based may have costs): $0 (self-hosted) or ~$5/month (cloud) - Development tools (free/open-source): $0 **Maintenance Costs (first year):** - Battery replacements (if applicable): $20 - Cloud MQTT (if used): $60/year - **Total:** $80 (assuming cloud MQTT) **Total Estimated Budget (10 rooms, basic touch, LED display, self-hosted MQTT):** - Hardware: $90 (rooms) + $57 (display) + $50 (router) = $197 - Software: $0 - Maintenance: $20 (batteries) - **Grand Total:** $217 **Total Estimated Budget (10 rooms, fingerprint, LCD display, cloud MQTT):** - Hardware: $180 (rooms) + $87 (display) + $50 (router) = $317 - Software: $60 (cloud MQTT) - Maintenance: $80 - **Grand Total:** $457 ### Notes: - Costs are approximate and can vary based on specific component choices and suppliers. - Advanced features like full fingerprint authentication will increase costs and complexity. - Integration with existing nurse station dashboards may require additional software development.
Key Features
Feature: Fingerprint Touch Sensor, Micro controller ,display board ,bazar/alarm
Format: The display board listens to incoming emergency messages.Upon receiving an emergency alert, it: Rings the alarm. Displays the room number and emergency status.
Usage: Patient touches the fingerprint sensor in their room. MCU verifies the touch (basic verification or just detection). MCU sends an emergency alert packet wirelessly to the main display system. Main display system receives the alert: Visual Alert: Room number + “Emergency” displayed. Audio Alert: Buzzer sounds to notify staff.
Implementation Steps Power Supply: Sensors & MCU powered via in-wall power or rechargeable batteries. Security: Basic fingerprint recognition can be expanded to full authentication for patient identification if needed. Scalability: Each room’s sensor assigned a unique room_id. Central display system supports multiple simultaneous alerts. Visual Display Options: LED ticker display. LCD/LED screen. Integration with existing nurse station dashboards.
2 days ago