DESC:In the present invention, the entire system device can be divided into two well-defined separate modules: 1) The basic module, 2) The signal-receiving alarm module.
• The basic module-
The detailed schematic of the basic module is shown in Figure 1 (a) and (b) correspondingly. Here, each component is marked as follows- (1.1) Vero circuit board, (1.2) Magnetic-field unit, (1.3) n-p-n Transistor, (1.4) 6-channel Logic Inverter circuit, (1.5) 3 × 3.7 V, 350 mAh battery pack with BMS or ~10.5 V DC battery supply, (1.6) 1×1 kO resistor, 1×100 O resistor, 1×220 kO resistor, 2×1 MO resistor, (1.7) Location-tracker & Signal transmitter, (1.8) Flat-shaped plastic-case circuit-container, (1.9) 1× 3cm × 3cm metal plate, (1.10) 1× moderate strength Neodymium button magnet 3cm diameter, and (1.11) jacketed clothing to cover the magnet.
• The signal-receiving alarm module-
The detailed schematic of the signal-receiving alarm module is shown in Figure 2 (a)-(c) entirely. Here, the components are marked as (2.1) color changing LED, (2.2) passive buzzer, (2.3) signal receiving module, (2.4) 1× coin cell battery, (2.5) 1 × coin cell battery holder, (2.6) capsule-shaped plastic-case circuit-container, (2.7) speaker-grill for passive-buzzer, and (2.8) transparent plastic-layer for visibility of color-changing LED.
The present module is responsible for keeping intact with a magnet (1.10) kept inside jacketed clothing to cover the entire frame (1.11) of moderate strength hooked externally. The Magnetic-field unit (1.2) in the Vero Circuit-board (1.1) continuously checks for the presence of Magnetic-field strength and works on the physical principle of hall-effect in magnets. The digital signal is sent from the sensing unit (1.2) to the Logic Inverter circuit (1.4) which alters the signal level from high to low or vice-versa. Thereafter, the inverted signal is sent from the Logic Inverter circuit (1.4) to the n-p-n transistor (1.3). The transistor (1.3) accordingly sends a signal to the Location-tracker and Signal-transmitter module (1.7). The tracker upon receiving a high signal from the transistor (1.3) activates the signal transmitter to send location coordinates to the registered mobile device which belongs to the user and the signal-receiving alarm (2) module. The whole circuit of the basic module works perfectly within 10.5 to 11.1 V of DC battery-power supply (1.5) accompanied by a Battery Management System (BMS) to supervise the power supply at all times and provide protection against all electrical odds. Resistors (1.6) of different resistances have been given in support to protect the sensing unit (1.2), logic-inverter circuit (1.4), transistor (1.3), location tracking and signal-transmitting unit (1.7) from a higher voltage or current supplies and function smoothly at their respective operable voltages. All the battery packs (1.5) and the rest of the elements soldered upon the Vero-circuit board (1.1) are kept inside a flat-shaped plastic case circuit container (1.8). On one face of the plastic-case circuit container (1.8), a rectangular groove is present where a metal plate of dimension 3cm × 3cm (1.9) is fixed, right below which lies the magnetic-field unit (1.2). A metal plate of dimension 3cm × 3cm (1.9) is fixed on the basic module (1) in order to attach a moderate-strength magnet (1.10) to the outer layer.
The detailed functioning of the basic module (1) is hereby given in a list as follows:
1. At first on the Vero Circuit-board (1.1) two leads from the 3 × battery packs (1.5) are connected in parallel to produce an 11.1 V DC power supply. Then, from the positive lead a 1kO, 1 MO, and 220 kO resistor are soldered, and on the negative lead, a 100 O resistor (1.6) is soldered respectively.
2. In the 1kO resistance path, the power terminals of the location-tracker and signal-transmitter module (1.7) are connected, and on the path of 1MO resistance, the Logic-Inverter Circuit (1.4) is attached for receiving its power.
3. In the 220 kO resistance path, the power terminal of the magnetic-field sensing unit (1.2) is attached.
4. For creating a common ground, the ground terminals of the Location-tracker and Signal-transmitter module (1.7), Logic-inverter Circuit (1.4), the emitter of n-p-n transistor (1.3), and the ground terminal of the magnetic-field unit (1.2) are attached to the 100 O resistance path leading to the negative terminal of the battery pack (1.5).
5. The signal pin of the magnetic-field unit (1.2) is attached with another 1MO resistance which leads to the input terminal of the Logic-inverter Circuit (1.4).
6. The signal from the output terminal of the Logic-inverter Circuit (1.4) is sent to the base pin of the n-p-n transistor (1.3). from the collector pin of the transistor (1.3), the connection is made to the input-signal terminal of the location-tracker and signal-transmitter module (1.7). Thus, making all the circuit connections in the basic module complete.
The detailed functioning of the signal-receiving alarm module (2) is hereby given in a list as follows:
1. The signal-receiving alarm module (2) has to be kept in an encapsulating plastic case (2.6) having minute perforated holes allowing sound to emit from the passive buzzer (2.2) and also having a transparent plastic layer for color-changing LED (2.1) to subtly blink light. The plastic case (2.6) has space to accommodate a coin cell battery (2.4), its battery holder (2.5), and a signal-receiving module (2.3).
2. At first the coin cell battery holder (2.5) is fixed at the bottom of the case with a 3 V coin cell battery (2.4) placed inside it.
3. The signal-receiving module (2.3) is placed beside the battery holder and its power terminal is connected to the positive end of the battery (2.4) and the ground is connected to the negative terminal.
4. The positive terminal of the battery (2.4) leads to the positive leg of the passive buzzer (2.2). From the negative leg of the buzzer (2.2), a series connection is made to the positive lead of the color-changing LED (2.1). Thereafter, the negative terminal of the LED (2.1) is connected to the signal-out pin of the signal-receiving module (2.3).
The detailed integrated working of the two modules can be well understood from the following conditions:
As soon as a charged battery is placed inside both the basic module (1) and the signal-receiving alarm module (2), the system gets activated, and if–
(i) A constant strength of the magnetic field of a magnet (1.10) is detected by the magnetic-field unit (1.2), then a low signal is sent by the basic module (1) to the signal-receiving alarm module (2). Here, neither the LED (2.1) lights up nor the passive-buzzer (2.2) emits any sound, indicating that the lock status of the luggage is fine and comprises no disturbances.
(ii) Otherwise, if no magnetic field from Magnet (1.10) is detected by the magnetic-field unit (1.2), then a high signal is sent by the basic module (1) to the signal-receiver module (2) due to which both the LED (2.1) lights up and the passive-buzzer (2.2) emits sound at a same constant frequency, simultaneously. This indicates that the lock status of the luggage of the user is not fine or is facing any disturbance.
,CLAIMS:We Claim:
1. A wearable anti-theft tag and tracker system for protecting the user’s luggage and providing location-based tracking in the event of burglary or theft. The present invention comes in two separate modules:
a basic circuitry module with a detachable jacketed magnet;
a signal-receiving alarm system.
wherein: the basic module integrated with a detachable jacketed magnet contained inside a flat-shaped plastic case is tagged with the user’s belongings. The signal receiver module contains a color-changing LED and a passive buzzer for triggering the circuit display and alarm unit during any mishaps.
2. The present invention of claim 1 wherein in normal operating conditions, the attached color-changing LED doesn’t light up and the buzzer makes no sound indicating magnetic lock status as ‘Okay’. When the lock is detached, the attached color-changing LED constantly flashes red color at a high frequency, while the buzzer also rings at the same frequency at which the LED blinks, indicating the lock status as ‘Not okay’. A signal is transmitted to the user’s mobile device indicating a ‘Not stable’ baggage security status and tracks the current location of the luggage as well.
3. The wearable device unit of claim 1 wherein the device is wireless and portable for ease of access to the daily commoners for their day-to-day traveling.
4. The wearable tagging device of claim 2 wherein the location-tracking unit is triggered when there is any disturbance in field intensity sensed by the magnetic sensing unit.

5. The wearable tagging device in claim 1 is only accessible to the registered user and there is no involvement of any third-party communication.