Connection and guardian alerts
Pairing, battery, groups, routing and basic incident reports
SMART TAGBELL한국어Let’s connectSMART SAFETY CONNECTION
One press.
Connected support
when it matters.
Press TagBell to send a BLE signal to your connected smartphone. The app then sends a help request to your preselected contacts over the network.
Your phone must be within BLE range, with the app and internet connection available. Contacts receive alerts over the network.
Download reports · Korean / English PDFExplore the app · seven interactive screens ↓New scenarios · School check-ins & bullying alerts ↓Designated contacts
App · network
BLE · your phone
SMART
TAGBELL
TAGBELL
Caregiver
Responder
Partner
●
No responseApp pushFCM · APNs
•••
No responseMessengerBackup alert
◎
EscalationPreselected contacts
BLETagBell ↔ your phone
NetworkApp → designated contacts
Android · iOSMobile platform support
SMART TAGBELL · APP EXPERIENCE
From one small button
to connected safety
Check connections, route alerts and follow the response. Select a screen below to explore the proposed app.
Development proposalInteractive screens · sample data
Smart TagBellSample screen
Your connections today
Safety starts with connection
◉
Ready to connect
External button → your phone → contacts
Registered buttonTagBell-001
Sample battery85% ▰▰▰▱
Bluetooth LEConnected
Recipient groupFamily · 3
Design demo · no real alerts or location collection
TECHNICAL DESIGN
Clear roles from device to response
- 01
Devices
BLE · ID · BatteryButton registration, user association and connection/battery monitoring. Keyring, pendant and helmet-mounted form factors.
- 02
Mobile app
Android · iOSReceive button events, manage consent and permissions, location, recording, cancellation and confirmation. Validate background operation per OS.
- 03
Alert processing
Push · Routing · EventsGroups, sequential/simultaneous routing, unanswered policies, deduplication and response state. Distinguish dispatch from acknowledgment.
- 04
Operations
Dashboard · Audit · ReportRole-based access, responder assignment, timelines, reports and fleet operations, with organization-specific policies and retention.
Extensions to validate
Wearable fall/inactivity detection / indoor BLE positioning / consent-based continuous location / AI-assisted false-alarm review / charging docks and maintenance
Everyday safety and sensors
Safe zones, location history, wearable confirmation and AI validation
Organization-wide operations
School, care and workplace dashboards, access roles, analytics and maintenance
The sequence is proposed. Timing, device support, detection performance and indoor accuracy require validation and integration review.
Everyday Smart TagBell · School journeys for children in Korea
“Mom, I got to school safely!”
A child’s day,
shared with one press
From school to an after-school academy, then home.
In this service scenario, a child presses the button and says a few words. Their voice is automatically recorded and sent to a parent together with their current location.
School→Academy→Home
Children share an update without making a call.
Parents receive their child’s voice and location together.
From a child’s point of view
A call can feel like a chore.
A press and a few words feel easy.
“Call me when you arrive.” A child may mean to, but put it off because calling feels inconvenient—or forget while busy with something else.
Smart TagBell combines the fun of pressing a button with the convenience of a short voice message. A casual “Mom, I’m here!” is designed to make staying in touch feel easy and help build a natural check-in habit.
How an update reaches home
Press. Speak. Keep a parent informed.
- 01
The child presses the button
They press Smart TagBell when arriving or starting the next part of their journey.
- 02
Record voice and capture location
The app on the child’s connected smartphone collects a short recording and the current location.
- 03
Send automatically to a parent
The registered guardian receives the voice message, location and transmission time together.
A daily journey
Five reassuring updates,
from school to home
Each example shows what the child says and what a parent receives.
- 01
Arriving at school
“Mom, I got to school safely!”
At the school entrance, the child presses the button and shares a quick update.
What a parent receivesSchool arrival confirmedVoice recording · School arrival location · Transmission time
- 02
Leaving school for the academy
“Mom, I’m on my way to the academy.”
After school, the child sends an update before heading to their after-school academy.
What a parent receivesOn the way to the academyVoice recording · Location when leaving for the academy · Transmission time
- 03
Arriving at the academy
“Mom, I’m at the academy!”
The child presses the button on entering the academy to let a parent know they have arrived.
What a parent receivesAcademy arrival confirmedVoice recording · Academy arrival location · Transmission time
- 04
Heading home
“Mom, I’m on my way home now.”
When lessons finish, the child sends a quick message before heading home.
What a parent receivesHeading homeVoice recording · Location at the start of the trip home · Transmission time
- 05
Arriving home
“Mom, I’m home safely!”
Once home, the child leaves one last reassuring update.
What a parent receivesHome arrival confirmedVoice recording · Home arrival location · Transmission time
Everyday reassurance for children and parents
An update can arrive,
even when a call cannot fit.
Fun and easy for children
No contact search or phone conversation. Just press and say a few words—an experience designed to make checking in feel effortless.
A voice and location for parents
When parents cannot answer a call, they can listen to the delivered recording and see where the child sent it.
Key moments in one timeline
Review school arrival, the trip to the academy, academy arrival and the journey home in time order to understand the day’s movements.
School bullying or violence
A way to ask for help,
when speaking up is difficult
A child is forced into a secluded part of the school and cannot openly call or ask for help. In this scenario, they discreetly press Smart TagBell to alert a teacher or parent registered in advance.
- 01 · The child signals danger
Press discreetly
The child requests help without taking out a phone or making a call in front of the other person. Quiet operation and accidental-activation prevention must be validated in the actual device and app design.
- 02 · A teacher or parent is alerted
Review audio and location
The connected smartphone app sends captured on-site audio, location and the alert time to registered recipients. They review the information and arrange help to get the child to safety.
- 03 · Review what happened afterward
Use the records to explain the incident
Audio, location and time records may help explain a school bullying or violence incident and support a later review of the facts. The service design should preserve original records together with their timestamps.
The priority is the child’s safety and prompt assistance. Actual capture and delivery depend on smartphone connectivity and permissions. Records alone do not guarantee proof of school violence or acceptance as evidence.
INTERACTIVE EXPERIENCE
One alert.
The right response for the situation.
Explore the roles of a traveler, security officer, field technician and responder. No real recording, notification, emergency report or location transmission occurs.
The rental company clips TagBell onto the edge of the driver’s Sunshade while it stays folded up against the ceiling with a PRESS IN EMERGENCY notice. After an accident, the driver presses the button from inside the car and describes the situation and help needed. Explore sharing the accident location and recorded request with the company’s designated response contact. Changing the scenario resets the experience.
Ready to explorePress TagBell below to begin
REQUESTER VIEW
Rental car driver
Overseas road · example accident location
Start an alert when you need assistance.
RECIPIENT VIEW
Designated response contact
Your choice determines the next step.
Respond here when a request arrives.
Activity log
Start a request to see the steps you choose.
The demo advances only when you press a button. All locations and messages are examples. A real service needs device and app integration, pre-registered contacts, recording and location permissions, sharing consent and local response arrangements. This page does not request microphone or location access, record, transmit or translate.
PRODUCT OVERVIEW
Beyond an alert.
A pathway to response.
Signal that you need help without taking out your phone.
In a threatening situation, using a phone may expose it to being taken or damaged. Smart TagBell is designed around a simple idea: press a button to alert people selected in advance, without searching for a contact or navigating a screen.
If the first recipient does not respond, the request can move through backup channels and a registered network. Actual transmission depends on the device’s communication design and connection status.
TAG DESIGNS
Different ways to wear it.
One way to call for help.
Three design concepts: a badge, a phone ring and a pendant.
Attach to clothing
A chest-mounted button designed for easy access on clothing or uniforms, including security and field-service roles.
Attach to your phone
A folding finger ring combined with an alert button. It can be used while holding a phone, but may become inaccessible if the phone is taken.
Wear around your neck
A pendant-style button for travel and everyday use. A breakaway strap and wearing safety need validation during product development.
The form factor does not determine independent connectivity. Dimensions, attachment, battery, communications and activation conditions remain subject to product design and validation.
FROM ALERT TO RESPONSE
From pressing the button
to someone taking action.
A service concept connecting a designated recipient with location information and an on-site audio recording.
- 01
Child presses the pendant
When a suspicious person follows her, the child presses the Smart TagBell pendant around her neck to request help from a designated contact.
- 02
Recipient checks location
The alerted recipient checks where the child is on their smartphone.
- 03
Review the recording
The recipient listens to shared on-site audio to understand the situation.
- 04
Respond at the scene
A guardian or designated contact goes to the child or arranges on-site assistance and checks that she is safe.
A real service requires device and app connectivity, registered recipients, location and recording permissions, and sharing consent. This page illustrates the flow and does not record audio or send emergency messages.
CORE TECHNOLOGY
A four-step response flow
Conditions and coverage can be configured for each operating environment.
Instant alert
Pressing TagBell sends a BLE signal to your connected smartphone. Its app sends a notification to preselected contacts over the network.
Backup channel
If no one responds, a messenger backup channel helps reduce the risk of a missed notification.
Next designated contact
If unanswered, the app follows the configured order of preselected contacts.
Connected response
Recipients review the location and situation, then choose an available response path.
SYSTEM ARCHITECTURE
Devices, apps, messaging and monitoring—connected.
The concept combines standard mobile push infrastructure with messenger channels and notification delivery to designated contacts. Control centers, caregiver apps and operating policies can be integrated to suit each partner.
Smart TagBellBLE signal
→Your phoneApp · network connection
→Designated contactsHelp request notification
PATENT PORTFOLIO
Patented technologies for connected safety
Two Korean patents registered to PASSnet Co., Ltd.
KOREAN PATENT · 10-2491615
Emergency rescue management system for smartphone users
Describes a request device linked to a smartphone that shares emergency signals, location and on-site audio with a control center, supporting CCTV coordination and notifications to responders and guardians.
Emergency requestLocation & audioControl center integration
- Application no.
- 10-2022-0113915
- Filed
- 2022.09.08
- Registered
- 2023.01.18
- Patentee
- PASSnet Co., Ltd.
KOREAN PATENT · 10-2959613
Smart tag device and intelligent integrated safety management system using the same
Describes trigger-based, time-limited audio collection, inaudible acoustic data transmission as a backup, event-synchronized CCTV clip extraction, and pedestrian–vehicle safety integration.
Time-limited audioBackup communicationCCTV & traffic safety
- Application no.
- 10-2025-0212373
- Filed
- 2025.12.29
- Registered
- 2026.04.27
- Patentee
- PASSnet Co., Ltd.
Summarized from the supplied patent certificates and specifications. The technologies described are distinct from the demonstrations on this site; product implementation and external integrations require separate development and validation.
APPLICATIONS
On the move. On the job.
Keep the right people informed.
These are service scenarios. Actual recording, location sharing and local response require integration and field validation.
01In-car rental vehicle alerts
The rental company clips TagBell onto the edge of the driver’s Sunshade while it stays folded up against the ceiling. After an accident, the driver presses it and describes what happened. The accident location and recorded request are shared with the company’s designated response contact.
02Retail security teamwork
Connect a store with its control center and nearby registered security personnel for coordinated support.
03Field service & telecom installation
Share an emergency at a customer site with a manager and designated colleagues.
04Older adults & vulnerable people
When sudden chest discomfort makes calling difficult, an older adult presses TagBell. The phone lies right beside their hand, but they lack the strength to operate it. A maintained connection and successful audio capture can relay a spoken request for help and location to a preselected hospital or responder. This service concept requires app connectivity, recording permission and prior recipient integration.
05Industrial & workplace safety
During an emergency while painting a high-rise exterior, a rope-access worker hangs from secured ropes and a safety harness, gripping a rope to steady themselves. They cannot free their hands to hold and operate a smartphone. They press the TagBell button attached to the side of their helmet to request rescue from the site manager and safety personnel.
06Travel & outdoor activities
A hiker slips down a steep slope, drops their phone and falls roughly 10 meters below the trail. They press the TagBell pendant to request rescue. If the BLE connection remains active, the phone left above receives the signal and relays an emergency alert to a designated contact. Terrain, obstacles and device status affect connectivity; any shared position is the phone’s location.
07Facilities & local communities
When a shattered smartphone screen prevents touch operation in an apartment complex or public facility, the user presses TagBell to request help from a preselected building manager or guardian. This scenario assumes only the display or touch input is damaged: phone power, BLE, the app and network connectivity must remain available. A fully failed or disconnected phone cannot relay the alert.
08Find a phone while hiking
A phone slips away during a hike and becomes hidden among fallen leaves near a tree roughly 15 meters away. In a preconfigured phone-finding mode, pressing TagBell signals the BLE-connected phone to play a locating chime and emit light through its screen or flash. The hiker follows the sound and light, locates the phone and retrieves it. Fifteen meters is a scenario setting, not a guaranteed connection range. Phone power, a running app, BLE connectivity and supported sound/light controls are required.
BUSINESS VALUE
Build safer services together.
Flexible deployment
Adapt response roles and operating rules to homes, care services, industrial sites and facilities.
Partner integration
Explore service models with telecom, security, monitoring, insurance and care platforms.
Operational insight
Use notification, response and escalation history to evaluate and improve the response process.
GETTING STARTED
Plan for your environment.
Try the response flow here. Real device alerts, app notifications and messenger delivery need separate service integration.
Who will use it, and where?
Identify user numbers, locations, connectivity and the existing monitoring setup.
Who will respond?
Define contacts, waiting times, escalation coverage and the final unanswered-alert procedure.
Test in real conditions.
Verify device connections, delivery, accidental-alert cancellation and safety confirmation. Cost and timing depend on the agreed scope.
Frequently asked questions
How can it help when reaching for a phone is difficult?
The concept is to send an emergency signal to preselected contacts with one button press, reducing the need to find contacts or operate a phone screen during a threatening situation.
Will it work if my phone is taken or damaged?
TagBell relies on your connected smartphone. The phone must be powered on, within BLE range, and able to run the app and access the network. If these conditions fail, the alert may not be sent.
Does this website send a real emergency alert?
No. The interactive experience runs only on this page. It does not contact emergency services, send notifications, record audio or transmit your location.
What happens if nobody responds?
The demo shows backup messaging and escalation, followed by an unanswered state. A real service needs a separate emergency contact and response procedure. A response or rescue is not guaranteed.
What if I press the button by mistake or cannot respond?
The requester can cancel an alert. Recipients can decline to move the demo to the next stage. Accepted requests close only after arrival and a safety confirmation.
What if connectivity or location permission is unavailable?
Notification delivery and notification delivery to designated contacts may be limited. Deployment planning should include connection indicators, permission guidance, alternative contact methods and unanswered-alert procedures.
How does the rental car installation work?
The rental company clips TagBell onto the edge of the driver’s Sunshade while it stays folded up against the ceiling beside a PRESS IN EMERGENCY notice. From inside the car, the driver presses the button and describes the accident and assistance needed. The accident location and recorded request are sent to the company’s preselected response contact. Local assistance requires partner arrangements. This site does not automatically call emergency services or provide interpreting.
Can recordings and location be shared together?
Yes, in this service concept: press the in-car TagBell and describe the accident. The location and driver’s recorded request are shared together with the rental company’s designated contact. The real service requires in-car hardware, audio capture, location and communication integration, and consent. This demo displays sample text only.
Is emergency information shared with everyone nearby?
No. Travel and field-service scenarios use preselected contacts. Security collaboration uses a registered response network. Each deployment defines who receives information and how widely it is shared.
REPORT DOWNLOADS
Smart Tagbell reports
Explore the technology, R&D objectives and commercialization strategy in the 18-page Korean and English reports.
스마트 테그벨 사업·기술 보고서
AI·IoT 기반 휴대형 스마트 안전단말 및 통합관제 플랫폼 개발·사업화
Download Korean PDFSmart Tagbell Business & Technology Report
AI·IoT-Based Portable Smart Safety Device and Integrated Monitoring & Control Platform Development & Commercialization
Download English PDFPARTNERSHIP
Shape the next chapter
of connected safety.
Discuss product co-development, field pilots, distribution and service partnerships, or strategic investment.
Location and personal data protection, consent, mobile permissions, messaging costs and fallback response arrangements require planning for the intended country and service environment.