ALERT SYSTEM FOR HEARING IMPAIRED CHILDREN

Abstract

Alert system for Hearing Impaired children This innovative alert mechanism provides a reliable solution for deaf children within a range of approximately 100 meters. Designed to enhance the safety and communication of children with hearing impairments, it allows parents or guardians to remotely alert them while they play or move in the designated area. The setup includes a transmitter, held by the parent, equipped with a sensor [1] and encoder [2], which communicates with a receiver held by the child. The receiver ·features a vibrator [4] to entire alerts are felt rather than heard. Simple sensors are integrated to trigger alerts, further enhancing safety. Additionally, the system functions as a motion-detection alarm for monitoring purposes, improving security when a deaf child is alone. This approach enables parents to maintain connection and responsiveness to ensuring their safety.

Specification

DRAFT REPORT
1. Title:
Alert system for Hearing Impaired children
2. Field of invention and use of invention:
This invention addresses the concerns of parents with hearing-impaired children, particularly in
situations where the children are playing outdoors. Due to their inability to hear, these children
cannot respond when called by their parents, leading to safety concerns.
The system aims to provide assistance by detecting motion around the child and alerting them. It
can be deployed in both play areas and homes, offering parents a reliable method to communicate
with and monitor their children.
3. Novelty of the invention:
• The system includes a transmitter (carried by the parent or guardian) equipped with sensors
capable of detecting motion or being manually activated to send signals.
• The receiver, carried by the child, alerts them through vibrations when the transmitter sends
a signal, whether initiated by the parent or automatically triggered by movement.
• A key innovation is the ability to detect even small movements around the child, offering
prompt alerts through vibrations.
4. Features of the invention:
• The transmitter's motion sensor detects nearby movement and communicates with the
receiver.
• The system functions as an automatic alert for hearing-impaired children, ensuring their
safety through real-time notifications.
• With the use of cost-effective, simple sensors, the system is affordable and accessible.
5. Background of the invention:
• Hearing-impaired children often require constant supervision for their safety, placing a·
significant burden on parents.
• This invention provides a simple yet effective security measure for both the children and
their guardians, ensuring peace of mind through real-time motion detection and alerts.
6. Existing state-of-art related to the invention (Literature Survey):
Children, regardless of their hearing ability, face safety risb when playing in unsupervised
environments. Even with hearing aids, hearing-impaired children may struggle to respond to
environmental cues, leaving them vulnerable.

By integrating a motion detection system that alerts children through vibrations (a sense they are
more attuned to), this invention provides a vital safety mechanism. Studies show that individuals
who lose their sense of hearing rely heavily on the sense of touch for rapid responses, with up to
86.7% of people reacting faster to tactile stimuli than other senses when hearing is impaired.
Wireless Hearing Assistance Systems (EP I 638 367 A2):
This patent focuses on a wireless hearing assistance system that provides real-time feedback on
the quality of audio links. The system's polling mechanism allows a speaker to request
information on audio quality, and this information is visually displayed, aiding communication.
Key takeaways for your literature survey:
o Polling command mechanism: A novel feature for continuous quality feedback in hearing
aids.
o Potential for integration: Similar techniques can be adapted for children's alert systems
where real-time audio link quality can be crucial, especially in noisy environments.
o Real-time status updates: The idea of real-time monitoring can be applied to. alert systems
that track environmental audio data and relay information to caregivers or teachers.
Event Messaging for Emergency Situations (US I 02125708 I)
This system is centered around providing event-based messages to user devices, using data from
sensors and communications to determine emergency conditions. It emphasizes tailoring messages
based on the user's needs and ensuring that these messages can prompt responses.
Key takeaways for your literature survey:
o Sensor integration: The use of sensor data to detect emergencies is crucial in hearing impaired
alert systems, where detecting unusual sounds I ike alarms, cries, or other distress
signals is essential.
o Customizable alerts: The ability to customize messages based on user-specific data can be
translated into alert systems for hearing-impaired children, allowing for tailored feedback
for both the children and their guardians.
o Emergency communication: This patent highlights the importance of curating responses
from users, which could be incorporated into systems where feedback from caregivers
could ensure more robust support for children.
Sound Sensitivity and Vibration Feedback System (KR201 8001 8649A)
This system uses sound-sensing modules to determine sound sensitivity in the environment and
generates vibration feedback if the sound surpasses a predetermined threshold. It provides
directional guidance for hearing-impaired individuals through vibrations.
Key takeaways for your literature survey:
• Sound-sensitivity threshold: This feature can be highly useful in alert systems for children,
ensuring that critical sounds (e.g., alarms or calls for attention) are noticed without
overwhelming the child.
• Vibration-based guidance: The use of vibrations to direct attention can be a vital feature,
especially in environments where visual or auditory cues may not be sufficient. This is
particularly important for children who may not respond to traditional alerts.
• Modular design: This system is built on a modular approach, which could inspire more
adaptable alert systems for diverse environments, such as schools, homes, or playgrounds.
Strategy:
Here literature review could focus on three key areas:
Technology for Audio Detection and Quality: Explore advancements in audio link quality
monitoring, real-time feedback systems, and wireless transmission. You can start. by
reviewing other patents similar to EP I 638 367 A2.
Sensor-based Alert Systems: Investigate how sensor technology is used in hearing aids and
other assistance devices. Look into how emergency detection systems, like those described
in US! 02125708 I, can provide tailored alerts based on user-specific data.
Vibration and Sensory Feedback: Examine how vibration and haptic feedback
mechanisms, like those described in KR20 180018649A, are -used to alert hearing-impaired
individuals and how these could be adapted for children's needs.
Hypothesis:
People who sense vibrations react immediately when they cannot hear properly. This proposal
utilizes that principle, relying on touch as a vital channel for communication in hearing-impaired
children.
Statements:
If a deaf child who is playing in some distance on the isolated area cannot be alerted by shouting
when vehicle nears her/him. If the proposed system is embedded, then the sensor will sense the
movement of an object and vibrate on the receiver side. So the child will be alerted through the skin,
sense organ and alerted.
7. Drawbacks of existing System:
o Current solutions;-such as mobile alarms or phone calls, are impractical for children in play
environments.
o This system is dynamic and practical, allowing children to be alerted through vibrations
from the receiver, enabling a faster response to movement or calls from their parents.

8. Industrial and domestic applications of the invention:
• This system can be invaluable for parents of hearing-impaired children, offering a layer of
protection and peace of mind.
• It can also serve as an automatic alert system for other vulnerable individuals in both
domestic and institutional settings.
9. Brief description of Invention
Materials:
o Encoder [2]-HT 12E (RF Encoder I C): Converts input data into corresponding RF signals,
allowing communication between the transmitter and receiver.
o Address Configuration: Unique address codes ensure secure communication between
devices.
o RF Transmission: The encoded signal is sent via radio frequencies to the receiver, which
decodes and processes the signal.
o Sensors [11-PIR Sensors: These sensors detect movement within the transmitter's range and
trigger the transmission of a signal to the receiver.
o 433 MHz RF Transmitter and Receiver Module: Used to transmit and receive signals across
distances, facilitating communication between the devices.
o Power Supply and Components: The system is powered by 9V batteries and stabilized
Cll with capacitors and resistors to ensure the components remain functional and safe.
In practice, the sensor detects motion, and the transmitter sends a signal to the receiver carried by
the child, causing the receiver to vibrate and alert them to the movement.
Methodology
For the proposed system I have used 433 MHz RF Transmitter and receiver module which is a pair
of small RF electronic modules, used to send and rec_eive radio signals between any two devices.
The RF transmitter is an easy way to communicate in one way (transmitter to receiver). The
corresponding range varies between 30 KHz to 300KHz,
In this project, the vibrator in the receiver side will be controlled by the sensor which is connecte~
to encode IC in transmitter side.
Here 9V battery is used in both transmitter and receiver side for the power supply.
Capacitors are used to solve the ripple waves.
Resistor is used to control the power supply exceeds 5V. If it exceeds 5V the IC will be collapsed.
I kept the sensor which is in transmitter side, in a stable position.
And vibrator[4] in a receiver is with a deaf kid who has 90% deafness in right ear and 60% deafness
in left ear.

Whenever a moving object passes the sensor[!], it senses the object and Encodes the waves, sends
the information to receiver side.
Receiver side IC receives the signals and encodes it. Through that the vibrator will be activated.
Observation And Data Analysis:
A kid with 90% hearing loss was tested without hearing aid. Called out the kid's name loudly so
many times. But the reaction was nil.
The same kid was tested with hearing aid. The reaction was minimai because the hearing loss is
high.
The kid was embedded with receiver side of the proposed system, whenever there is a movement
recognized by the sensor, the kid was alerted with the vibrator.
The reaction was higher rather that without/with hearing aids.
Similar positive results were observed in school settings, indicating the system's effectiveness .. It
gave me positive feedback as the reaction of children is high.
10~ Brief description of diagrams:
• Figure 1: Component [2) Pin layout ofHTI2E Encoder.
• Figure 2: Component [3) Pin layout ofHTI20 Decoder.
• Figure 3: Working model of the system.
• . Figure 4: Flow chart of system operation.
In Figure I, the HTI2E- The Encoder [2] is shown which is used in the system. This encoder reads
the signal from the sensor [I] and encodes the data.
In Figure 2, the HTI20-The Decoder[3] is shown. This decoder receives the signal from the encoder
and it send signal to the vibrator [4] in figure 3. This vibrator alerts the receiver.
Figure 3, explains the overall working methodology of the system.
Figure 4, shows the working Jlow of the system.



CLAIMS
We claim,

I. The system comprises of important components as Sensor [1], Encoder [2], Decoder [3]
and Vibrator [4]-
2. The sensor [I], as claimed in claim I senses the movement of an object and send the
infonnation to Encoder [2]- The system uses Passive Infrared Sensors(PIR).
3. The Encoder [2], as claimed in claim I will be in standalone mode until it receives the signal
from the sensor [I]. After getting the signal it decodes the signal and transmit the signal to
Receiver. HT12E model encoder is used here which uses the Radio Frequency for
communication.
4. The Decoder [3], as claimed in the claim!, the receiver end Decoder [3], HTI2E will
receive the signal and makes the Vibrator [4] to vibrate and alerts the needed. This system
works within lOOm radius.

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