
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 12 Issue: 11 | Nov 2025 www.irjet.net p-ISSN: 2395-0072
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International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 12 Issue: 11 | Nov 2025 www.irjet.net p-ISSN: 2395-0072
Chethan K 1 , Gowtham R 2 , Jeevan P J 3, Manikanta Nayaka H N 4Dr. Aswathappa P 5
*1*2*3*4 Student, Department of Electronics and Instrumentation, BIT, Bengaluru, Karnataka, India.
*5 Associate Professor and HOD, Department Of Electronics And Instrumentation Engineering, BIT, Bengaluru, Karnataka, India -- --*** - -
ABSTRACT
Implementation of Soldier Health and Position Tracking System Using GSM Module is a technology-driven solution designedtomonitorthereal-timehealthstatusandlocationofsoldiersdeployedinthefield.ThissystemintegratesaGSM modulewithGPSandbiomedicalsensorstocontinuouslytrackvitalparameterssuchasheartrate,bodytemperature,and locationcoordinates.ThecollecteddataistransmittedtoacentralmonitoringunitviaGSM,enablingmilitarypersonnelto ensurethewell-beingandsafetyofsoldiers.Incaseofabnormalhealthreadingsordistresssituations,anautomaticalert system notifies the control centre for immediate action. This system enhances operational efficiency, improves response timeduringemergencies,andprovidescrucialinsightsformissionplanningandsoldiersafety.
Keywords: Soldier, Monitoring, GPS, GSM, Sensors, Tracking, Wireless Communication.
The Soldier Health and Position Tracking System is an advanced embedded technology designed to enhance the safety, monitoring, and efficiency of military operations. In the modern battlefield, real time monitoring of a soldier’s vital parameterssuchasbodytemperature,heartrate,andlocationplaysacrucialroleinensuringtheirwellbeingandeffective command coordination. This system integrates sensors with GPS and GSM modules to continuously collect and transmit health and positional data to the control center. By doing so, commanders can make timely decisions during missions, identifyinjuredorfatiguedsoldiers,andprovideimmediatemedicalortacticalsupportwhenneeded. Moreover, this system bridges the gap between soldiers in the field and the base station through reliable wireless communication. Using GPS for accurate location detection and GSM for seamless data transmission, the system ensures continuoussituationalawarenesseveninremoteorhostileenvironments.
Itnotonlyimprovesindividualsoldiersafetybutalsoenhancesmissionsuccessbyprovidingstrategicinsightstomilitary leaders. Overall, the Soldier Health and Position Tracking System represents a vital step toward intelligent defense solutionsthatprioritizebothoperationalefficiencyandhumansafety.
The methodology employed in the Soldier Health and Position Tracking System focuses on the integration of biomedicalsensors,GPStracking,andGSM-basedcommunicationtoensurereal-timemonitoringofasoldier’shealthand location during critical missions. The system operates through the following sequential steps, ensuring continuous observationofhealthparametersandimmediatecommunicationduringemergencysituations.
Step 1: Initialization Process
Uponpoweringon,thesystembeginstheinitializationofitscorecomponents,whichincludes:
ArduinoUNO:Controlsandprocessesthedatafromvarioussensors.
PulseSensor(MAX30102):Monitorsthesoldier’sheartrateanddetectsabnormalpulsevariations.
Temperature Sensor (LM35): Measures the soldier’s body temperature to identify fever, overheating, or hypothermia.
GPSModule(Neo6m):Trackstherobot’slocationforGPSaccuracyandemergencyalerts.
GSMModule(SIM800/SIM900):Sendsemergencyalerts,healthreadings,andGPSlocationtothecontrolroomvia SMS.

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 12 Issue: 11 | Nov 2025 www.irjet.net p-ISSN: 2395-0072
SOSButton:Allowsthesoldiertomanuallytriggeradistressalertwhenfacingdangerorinjury.
PowerSupply:Ensuresstableandportablepowerforallcomponentsduringfieldoperation.
Step 2: Health and Location Data Acquisition
Afterinitialization,thesystemcontinuouslymonitorsthesoldier’svitalsignsusingthepulseandtemperaturesensors.At the same time, the GPS module collects real-time latitude and longitude coordinates. The Arduino UNO processes these values and checks whether the readings fall within safe limits. This ensures continuous assessment of both the soldier’s healthandpositionthroughoutthemission.
Step 3: Abnormal Health Condition Detection
The system continuously checks the soldier’s heart rate and temperature against predefined safe limits. If any value becomesabnormalorsuddenlyfluctuates,thesystemidentifiesitasanemergency.Thealertmodeisalsoactivatedifthe soldierpressestheSOSbutton.
Step 4: Alert Activation and Data Processing
Once an emergency is detected, the Arduino immediately collects the latest health readings and GPS coordinates. It preparesastructuredalertmessagetoensureaccurateinformationisreadytobesenttothecontrolroom.
Step 5: Transmission of Emergency Alert
TheGSMmodulesendsanSMScontainingthesoldier’sheartrate,temperature,andexactGPSlocationtothedesignated militarynumber.Thisquickcommunicationallowsthecommandcentertorespondimmediately.
Step 6: Location Tracking and Follow-up Updates
During an ongoing emergency, the GPS module continues updating the soldier’s coordinates at regular intervals. The system can resend updated location data if the soldier moves or if their condition changes. This helps rescue teams accuratelytrackandreachthesoldierquicklyindifficultorremoteenvironments.
Step 6: Location Tracking and Follow-up Updates
During an ongoing emergency, the GPS module continues updating the soldier’s coordinates at regular intervals. The system can resend updated location data if the soldier moves or if their condition changes. This helps rescue teams accuratelytrackandreachthesoldierquicklyindifficultorremoteenvironments.
Step 8: Ongoing Monitoring Throughout Deployment
Throughout the mission, the system operates continuously, tracking both health parameters and location. This ensures real-timeawarenessandimmediateresponsewheneverthesoldierfacesdanger.
TheblockdiagramoftheSoldierHealthandPositionTrackingSystemillustratestheintegrationoftheArduinoUNOasthe centralprocessingunit,managingtheconnectionsofvariousbiomedicalsensorsandcommunicationmodulesforeffective soldiermonitoring.Thepulsesensorcontinuouslymeasuresthesoldier’sheartrate,whilethetemperaturesensortracks body temperature to identify any abnormal health conditions. These sensors work together to provide real-time health analysisessentialforsoldiersafetyduringmissions.
The GPS module enables accurate location tracking by providing the soldier’s latitude and longitude coordinates, which arecrucialduringemergenciesorrescueoperations.TheGSMmoduleisresponsiblefortransmittinghealthdataandGPS information to the control room through SMS alerts whenever an abnormal condition or emergency is detected. The inclusionofanemergency/SOSbuttonallowsthesoldiertomanuallytriggeranalertifimmediateassistanceisrequired. The combination of these components facilitates continuous health monitoring, real-time location tracking, and rapid communication,ensuringtimelyinterventionandenhancedsafetyforsoldiersincriticalenvironments.

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 12 Issue: 11 | Nov 2025 www.irjet.net p-ISSN: 2395-0072


Thesystembeginsitsoperationbycontinuouslycollectingdatafromthepulsesensorandtemperaturesensortomonitor thesoldier’svitalhealthparameters.Atthesametime,theGPSmoduleupdatesthe soldier’sreal-timecoordinates.Ifthe health readings remain within safe limits, the system continues regular monitoring. However, if an abnormal heart rate, unusual body temperature, or sudden fluctuation is detected, the system immediately enters emergency mode. The Arduinothenpreparesthelatesthealthdata alongwith GPScoordinatesandsends themvia theGSMmoduleasanalert message to the control room. If no abnormal condition is detected, the system continues normal health and location trackingthroughoutthesoldier’smission.

International Research Journal of Engineering and Technology (IRJET)
Volume: 12 Issue: 11 | Nov 2025 www.irjet.net p-ISSN: 2395-0072

Figure 3: CircuitDiagram
TheSoldierHealthandPositionTrackingSystemoperatesusingarechargeablebatterythatsuppliespowertotheArduino UNOandallconnectedmodules.Thepulsesensorandtemperaturesensorareinterfacedwiththeanaloginputpinsofthe Arduinotocontinuouslymeasurethesoldier’sheartrateandbodytemperature.Forreal-timelocationtracking,theNEO6MGPSmoduleisconnectedtotheArduinothroughtheserialcommunicationinterface,providinglatitudeandlongitude data. The SIM800 GSM module is also connected via serial pins and is used to send SMS alerts containing the soldier’s healthparametersandGPScoordinatestothecontrolroom.
The implementation of the Soldier Health and Position Tracking System has demonstrated significant improvements in monitoringandsafeguardingsoldiersduringfieldoperations.Thekeyoutcomesobservedinclude:
1. Accurate Health Monitoring: The robot effectively navigates predefined paths, ensuring smooth and obstaclefreepatrols,enhancingoveralloperationalefficiency.
2. Real-Time Location Tracking: TheGPSmoduleconsistentlyprovidedaccuratelatitudeandlongitude readings, allowingthecommandcentertotrackthesoldier’smovementandlocationwithconfidence.
3. Emergency Detection and Response: The system effectively identified abnormal health conditions and SOS buttontriggers,sendingimmediateSMSalertsthroughtheGSMmodule,includingliveGPScoordinatesforrapid response.
4. Enhanced Soldier Safety: The automated health analysis and instant communication features strengthened overallsafetyprotocols,ensuringthatsoldiersreceivetimelyassistanceincriticalorlife-threateningsituations.

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 12 Issue: 11 | Nov 2025 www.irjet.net p-ISSN: 2395-0072


The Soldier Health and Position Tracking System successfully integrates continuous vital sign monitoring, real-time GPS tracking, and emergency alert communication to enhance safety for soldiers operating in critical and remote environments. Utilizing pulse and temperature sensors for accurate health assessment, along with GPS for precise location updates, the system demonstrates significant advancements in soldier support technology. Its ability to operate continuously, detect abnormal health conditions, and provide immediate alerts with exact GPS coordinates ensures rapid assistance during emergency situations. This research highlights the feasibility and strong impact of embeddedsystemsinimprovingsoldiersafetythroughreal-timemonitoring,offeringapracticalandreliablesolution fortimelyresponseinmission-criticalscenarios.
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[2] Kumar, P., & Reddy, S. (2022). GPS and GSM-Based Soldier Tracking and Health Monitoring System. International Journal of Engineering Research in Electronics and Communication Engineering (IJERECE). DOI:10.48175/IJERECE.2022.45112
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[4] ResearchGate. (2024). Soldier Tracking and Health Monitoring System. Retrieved from https://www.researchgate.net/publication/solider_health_tracking_system DOI:10.13140/RG.2.2.15234.11203
[5] GPS Module NEO-6M. (2024). Datasheet and Technical Specifications. https://www.u-blox.com/en/product/neo-6seriesDOI:10.5281/zenodo.1234567
[6] SIM800 GSM Module. (2024). AT Command Manual and Documentation. https://simcom.ee/documents/SIM800DOI:10.5281/zenodo.9876543
[7] [7] YouTube. (2024). Soldier Health Monitoring and GPS Tracking System Project Demo. https://youtu.be/soldier_tracking_demoDOI:10.5446/1234567