Confidential luggage

Abstract

The confidential luggage comprises an MCU (Microprogrammed Control Unit) and a coded lock, and further comprises a Bluetooth bracelet and a luggage Bluetooth module, the Bluetooth bracelet is in wireless communication connection with the luggage Bluetooth module, and the bracelet gives an alarm when the communication distance exceeds a certain value. The luggage loss alarm device solves the problem of luggage loss alarm, can timely remind the luggage after the luggage is lost and stolen, and is simple and practical.

Description

Technical Field

[0001] This utility model belongs to the technical field of hand-held items that are necessities of human life, and specifically relates to a security bag. Background Technology

[0002] Existing secure boxes with Bluetooth alarm functions only trigger an alarm after the Bluetooth connection is disconnected beyond its maximum range, which is a security deficiency. Furthermore, they rely on time synchronization issues with mobile phones or other networks, making accurate time synchronization impossible in environments with poor or no network coverage. To address this, the following improved technical solutions are proposed. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a secure bag that can promptly trigger an alarm when the bag is lost.

[0004] The technical solution adopted by this utility model is as follows: a security bag, including an MCU and a combination lock, as well as a Bluetooth bracelet and a bag Bluetooth module; the Bluetooth bracelet wirelessly communicates with the bag Bluetooth module according to the Bluetooth handshake protocol, and the Bluetooth bracelet alarms once the communication distance between the Bluetooth bracelet and the bag Bluetooth module exceeds a certain value.

[0005] The above technical solution further includes: a touch screen, a bag working status indicator module, a bag log storage, and a timer; the input end of the bag working status indicator module is connected to the output end of the combination lock, the output end of the bag working status indicator module is connected to the MCU and then connected to the bag log storage through the MCU, the bag log storage is used to store the opening date of the bag; the timer is connected to the MCU and then connected to the touch screen through the MCU to display the time; the touch screen is connected to the MCU to receive instructions and display information; the MCU is responsible for processing the input signals of the touch screen and reading the data of each module before executing the corresponding operation.

[0006] In the above technical solution, the Bluetooth bracelet is further equipped with a bracelet placement slot, which is fixedly installed inside the bag.

[0007] Of the above technical solutions, the preferred method is to use a Bluetooth wristband for magnetic charging or to charge via Type-C.

[0008] In the above technical solution, the preferred method is that the alarm device of the Bluetooth bracelet includes a voice alarm and a vibration alarm.

[0009] Furthermore, the Bluetooth bracelet also includes a RESET interface, a bracelet power indicator light, a bracelet power switch, and a bracelet Bluetooth indicator light.

[0010] In the above technical solution, the touch screen is further: fixedly installed inside the bag; the bag is equipped with a Bluetooth indicator light; the touch screen has a RESET button, a power indicator light, and a power switch.

[0011] The above technical solution further includes a bag battery module and a bag power measurement module. The bag battery module is connected to the bag power measurement module, and the bag power measurement module is connected to the touch screen and displays the power level through the touch screen.

[0012] In the above technical solution, the timer is further described as a radio-controlled clock, a GPS / BeiDou satellite timer, or an atomic clock timer.

[0013] Furthermore, the above technical solution also includes a laptop placement area.

[0014] Advantages of this utility model compared to the prior art:

[0015] 1. This utility model utilizes Bluetooth communication distance control technology and a timer, without relying on mobile phones, wireless networks, or other auxiliary devices, to achieve secure management of the distance between bags and personnel. It allows for immediate alerts when bags move away from the distance set by the wristband, without needing to disconnect Bluetooth communication. By monitoring the relationship between Bluetooth signal strength and distance, the actual distance between the Bluetooth transceiver modules is calculated, allowing users to set the alarm distance within the maximum Bluetooth signal range. This greatly improves the flexibility and usability of the device. This utility model can meet the needs of users in special environments such as mountainous areas without signal, basements, and airplanes for secure baggage use.

[0016] 2. This utility model can view the opening and closing log of bags, making it easy to trace the opening records when bags are out of the management area, preventing bags from being lost or stolen. It is simple and practical.

[0017] 3. This utility model uses the MCU as the control center to improve the overall performance and response speed of the system. It has powerful data processing capabilities, and the graphical display method of the touch screen makes the information intuitive and easy to understand, thus improving the user experience.

[0018] 4. Both the Bluetooth bracelet and the bag Bluetooth module of this utility model comply with the Bluetooth communication standard and establish a wireless communication connection through the Bluetooth handshake protocol, ensuring secure, reliable, and stable communication. The communication distance is achieved through the Bluetooth signal strength, which is inversely proportional to the distance; that is, the farther the distance, the weaker the signal strength. When the communication distance exceeds a preset threshold, the signal strength drops significantly or is completely interrupted. At this time, the microcontroller (such as a single-chip microcomputer) inside the Bluetooth bracelet triggers an alarm mechanism, alerting the user through vibration, sound, etc., helping the user to promptly detect the risk of lost or stolen bags and take corresponding preventive measures.

[0019] 5. As a portable device, this Bluetooth bracelet can be carried and easily operated by the user. The alarm mechanism reminds the user in an intuitive way, with vibration or sound prompts, enabling the user to react quickly.

[0020] 6. The bag battery module of this utility model is connected to the bag power measurement module via wires or connectors to provide power. The bag power measurement module is connected to the circuit part of the touch screen through a specific interface to achieve data communication. The bag power measurement module usually includes voltage detection circuit and current detection circuit to monitor the voltage and current values ​​of the bag battery module in real time. Through these detection circuits, the bag power measurement module can calculate the current remaining battery power, usually expressed as a percentage. The bag power measurement module sends the calculated power data to the touch screen through the interface. After receiving the power data, the touch screen displays it on the screen so that the user can view it and intuitively understand the bag's power status, avoiding unexpected shutdowns or malfunctions due to insufficient power. It ensures that the user can obtain power information at any time, helping the user to better plan usage time and avoid wasting or running out of power.

[0021] 7. This utility model's combination lock is connected to a luggage working status indicator module. When the status of the combination lock changes (such as open or closed), it sends a corresponding signal to the luggage working status indicator module. The luggage working status indicator module is connected to an MCU and converts the combination lock status signal into a digital signal that the MCU can recognize and sends it to the MCU. The MCU stores the relevant information in the luggage log memory. Users can view the most recent opening date of the luggage on the touch screen to determine if there has been any unauthorized opening or use. At the same time, this log information can also serve as evidence in case of lost or damaged luggage, helping users protect their rights.

[0022] 8. The timekeeping device of this utility model can receive signals from the National Time Service Center or other standard time sources and send the current standard time to the MCU. The MCU, as the central processing unit, receives, processes and stores this data and then sends it to the touch screen through another interface. The touch screen displays the time, thereby providing accurate time and avoiding the timekeeping errors that may occur with traditional timekeeping tools (such as mechanical watches or quartz watches).

[0023] 9. This utility model is equipped with a wristband placement slot, which effectively prevents the wristband from being squeezed and accidentally activated, and makes it easy to fix the Bluetooth wristband in the bag, avoiding the risk of loss or damage during carrying, saving luggage space, improving travel convenience, and can be taken out at any time when needed. The fixed design of the wristband placement slot and the bag body is neat and integrated, enhancing the overall aesthetics.

[0024] 10. The RESET interface of this utility model provides a quick recovery method for the bracelet. When the bracelet software malfunctions or freezes, pressing the RESET button will restart the bracelet and restore it to normal operation. During the development and debugging phase, the RESET interface facilitates developers to reset the bracelet and test its stability and reliability. The bracelet's power indicator light can intuitively display the bracelet's power status, allowing users to easily understand the bracelet's battery level. Through the bracelet's power switch, users can easily control the bracelet's power-on and power-off states and set the alarm distance. When the bracelet is not in use, it can be turned off to save power.

[0025] 11. The touchscreen of this utility model is connected to the inner wall of the bag, ensuring the stability and safety of the touchscreen inside the bag. It is easy to operate and aesthetically pleasing. The RESET button will restart the touchscreen to restore its normal working state. The power indicator light of the touchscreen can display the power status of the touchscreen in real time, helping users to understand the power status of the touchscreen in time, thereby avoiding the situation of being unable to use it due to the power running out. Through the power switch of the touchscreen, users can conveniently control the power-on and power-off status of the touchscreen.

[0026] 12. The Bluetooth indicator light of this utility model is used to clearly indicate the status of the Bluetooth module (such as connection, disconnection, data transmission, etc.). The control circuit of the Bluetooth module is responsible for receiving the status signals of the Bluetooth module and controlling the on / off state and flashing frequency of the Bluetooth indicator light according to these signals to provide clear prompts so that users can keep track of the usage status in a timely manner. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the inner structure of the box body embodiment of this utility model;

[0028] Figure 2 This is a front view of the outer side of an embodiment of the housing of this utility model;

[0029] Figure 3 This is an outer side view of an embodiment of the housing of this utility model;

[0030] Figure 4 This is a perspective view of the Bluetooth wristband of this utility model;

[0031] Figure 5 A schematic diagram showing the magnetic charging interface on the back of the Bluetooth wristband of this utility model;

[0032] Figure 6 This is a front view of the outer side of an embodiment of the package body of this utility model;

[0033] Figure 7 This is a schematic diagram of the inner structure of the package body in an embodiment of this utility model;

[0034] In the diagram: 1-Combination lock, 2-Touchscreen, 201-RESET button, 202-Touchscreen power indicator, 203-Touchscreen power switch, 204-Luggage Bluetooth indicator, 3-Bluetooth wristband, 301-RESET interface, 302-Wristband power indicator, 303-Wristband power switch, 304-Wristband Bluetooth indicator, 305-Voice alarm, 306-Magnetic charging interface, 4-Laptop placement area, 5-Egg-textured protective cotton, 6-User manual sticker, 7-Positioning support hinge, 8-Switch magnetic induction area, 9-Handle, 10-TYPE-C charging interface, 11-External charging cable, 12-Touchscreen charging interface, 13-Magnetic magnet. Detailed Implementation

[0035] The following will refer to the appendix in the embodiments of this utility model. Figure 1-7 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] A secure case includes an MCU and a combination lock 1, as well as a Bluetooth wristband 3 and a case Bluetooth module. The Bluetooth wristband 3 wirelessly communicates with the case Bluetooth module according to the Bluetooth handshake protocol. Once the communication distance between the Bluetooth wristband 3 and the case Bluetooth module exceeds a certain value, the Bluetooth wristband 3 will sound an alarm.

[0037] Both the Bluetooth bracelet 3 and the bag Bluetooth module adhere to the Bluetooth communication standard, establishing a wireless communication connection through the Bluetooth handshake protocol. During the handshake, both parties exchange necessary configuration information and authentication data to ensure communication security and reliability. After establishing a connection, the Bluetooth bracelet 3 and the bag Bluetooth module continuously monitor their communication distance, typically by measuring the received Bluetooth signal strength (RSSI). Signal strength is inversely proportional to distance; the farther the distance, the weaker the signal. When the communication distance exceeds a preset threshold, the Bluetooth bracelet 3 detects a significant drop in signal strength. Without disconnecting the Bluetooth connection, the microcontroller (such as a single-chip microcomputer) inside the Bluetooth bracelet 3 triggers an alarm mechanism, alerting the user through vibration, sound, or other means. By using the Bluetooth handshake protocol and RSSI measurement, the communication distance can be monitored in real time, and the alarm mechanism can be accurately triggered, helping users promptly detect the risk of lost or stolen bags and take appropriate preventative measures. The Bluetooth communication standard provides robust encryption and authentication mechanisms to ensure data transmission security. Furthermore, both the Bluetooth bracelet 3 and the bag Bluetooth module have undergone rigorous testing and certification, demonstrating high reliability and stability. As a portable device, the Bluetooth Band 3 allows users to carry it with them and operate it easily. The alarm mechanism provides intuitive alerts, such as vibration or sound prompts, enabling users to react quickly. Both the Bluetooth Band 3 and the Bluetooth module in the bag feature a low-power design, reducing energy consumption and extending battery life, allowing users to use the device for extended periods without frequent charging.

[0038] In the above embodiments, it further includes a touch screen 2, a bag working status indicator module, a bag log storage device, and a timer.

[0039] The combination lock 1, the bag working status indicator module, the bag log storage, and the timer are all connected to the MCU. The combination lock 1 supports multiple unlocking methods, such as numeric passwords and fingerprint recognition. The input and verification of these unlocking methods are all processed by the MCU.

[0040] The touch screen 2 is connected to the MCU to receive instructions and display information; the MCU is responsible for processing the input signals of the touch screen 2 and reading the data of each module before performing corresponding operations.

[0041] It should be noted that the MCU, acting as the control center, can read and process data from various modules, executing corresponding operations according to preset logic, thus improving the overall system performance and response speed. The MCU possesses powerful data processing capabilities, enabling intelligent decision-making and control based on user input and bag status information. For example, when the bag's battery is low, the MCU can automatically remind the user to charge; when the bag is unlocked, the MCU can set an automatic locking time. The graphical display of Touchscreen 2 makes information more intuitive and easier to understand, improving the user experience. The MCU can read data from various modules of the bag in real time and display it on Touchscreen 2. Both the MCU and Touchscreen 2 employ low-power design, reducing system energy consumption. This low-power design helps extend the battery life of the bag's battery module, described later, and improves user convenience.

[0042] The input terminal of the bag working status indicator module is connected to the output terminal of the combination lock 1. The output terminal of the bag working status indicator module is connected to the MCU and then connected to the bag log storage through the MCU. The bag log storage is used to store the opening date of the bag.

[0043] The combination lock 1's output is connected to the input of the luggage's operating status indicator module. When the state of combination lock 1 changes (e.g., open or closed), it sends a corresponding signal to the luggage's operating status indicator module. The output of the luggage's operating status indicator module is then connected to the input of the MCU. This module converts the received combination lock status signal into a digital signal recognizable by the MCU and sends it to the MCU. The MCU, through its internal processing logic, determines the luggage's operating status, such as whether it has been opened, and stores the relevant information in the luggage log memory. The MCU receives the signal sent by the luggage operating status indicator module and updates the luggage's operating status according to the signal content. Simultaneously, the MCU is also responsible for writing key information such as the luggage's opening date into the luggage log memory. The luggage log memory can be a built-in flash memory chip, an SD card, or other types of storage devices. Users can view the luggage's most recent opening date on the touchscreen 2. The luggage log memory records key information such as the luggage's opening date. For example, users can check the log information to understand the luggage's usage and determine if unauthorized opening or use has occurred. Furthermore, this log information can serve as evidence in case of lost or damaged luggage, helping users protect their rights.

[0044] The timer is connected to the MCU and then to the touch screen 2, where the time is displayed.

[0045] The system consists of a time transmitter that receives signals from the National Time Service Center or other standard time sources and accurately decodes them to obtain the current standard time. The time transmitter sends the time data to the MCU via an interface (such as UART, I2C, or SPI). The MCU, as the central processing unit, is responsible for receiving, processing, and storing this data. The MCU then sends the processed time data to touchscreen 2 via another interface. Touchscreen 2 receives the data and displays it on the screen. Specifically, touchscreen 2 receives the time data sent by the MCU through its driver and displays it on the screen. Because the time transmitter can receive signals from the National Time Service Center or other standard time sources, it can provide very accurate time, avoiding the timekeeping errors that may occur with traditional timekeeping tools (such as mechanical or quartz watches). By displaying the time on touchscreen 2, users can intuitively see the current time information.

[0046] Example 1: (as shown) Figures 1 to 3 As shown, the bag, when it has a case structure, includes a laptop compartment 4, egg-textured protective cotton 5 on the top and bottom of the case, an instruction manual sticker 6 on the upper case, a positioning support hinge 7 at the hinge joint between the upper and lower cases, a combination lock 1 with a magnetic induction switch 8, a handle 9 on the outside of the case, and a TYPE-C charging port 10 near the touchscreen 2. The TYPE-C port 10 features a reversible plug-and-play design, allowing easy connection of devices regardless of whether it's facing up or down, avoiding the embarrassment of plugging it in backwards or frequent handling. The TYPE-C port uses the USB 3.1 standard, offering faster transmission speeds up to 10Gbps. The magnetic induction switch 8 triggers a switching signal by detecting changes in the magnetic field, eliminating the need for direct contact and thus preventing wear and damage to the sensor itself and the target object, improving the reliability and lifespan of the bag's opening and closing. The magnetic induction switch 8 is small, lightweight, and easy to install.

[0047] Example 2: (as shown) Figures 6 to 7 As shown, when the bag is a bag-like structure, it includes a laptop storage area 4, a handle 9 on the outside of the bag, a combination lock 1 equipped with a magnetic induction area 8, an external charging cable 11 on the side of the touchscreen 2, a touchscreen charging port 12, and a magnet 13 corresponding to the magnetic induction area 8. The external charging cable 11 provides greater flexibility, allowing users to connect the charging cable to different devices as needed without worrying about incompatibility with the devices' built-in charging ports.

[0048] In the above embodiments, the Bluetooth bracelet 3 is further equipped with a bracelet placement slot, which is fixedly disposed inside the bag.

[0049] It's worth noting that the included wristband storage slot effectively prevents accidental activation due to pressure. This slot design allows the Bluetooth wristband 3 to be easily secured inside a bag, avoiding the risk of loss or damage during transport. Users don't need to prepare separate storage space for the wristband, saving luggage space and improving travel convenience. The wristband can be easily removed when monitoring is needed. The integrated design of the wristband storage slot and the bag body makes the entire bag look neater and more unified, enhancing its overall aesthetics.

[0050] In the above embodiments, preferably, the Bluetooth bracelet 3 is magnetically charged or charged via TYPE-C.

[0051] Among them: (e.g.) Figure 4 , Figure 5 (As shown) When the Bluetooth bracelet 3 uses magnetic charging, the magnetic charger, fixedly installed inside the case, is placed in the aforementioned bracelet placement slot, achieving magnetic charging simultaneously with the bracelet placement. Specifically, the magnetic charging interface 306 of the Bluetooth bracelet 3 is designed on the main body of the bracelet, usually located on the back or side of the bracelet, facilitating alignment with the magnetic charger in the bracelet placement slot. The magnetic charger consists of a magnetic connector and a charging cable. The magnetic connector can firmly attach to the magnetic charging interface 306 of the Bluetooth bracelet 3, achieving a stable charging connection. When charging the Bluetooth bracelet 3, the user simply places the bracelet in the bracelet placement slot, ensuring that the magnetic charger is aligned and magnetically attached to the magnetic charging interface 306 of the Bluetooth bracelet 3. The other end of the charging cable is then connected to the bag's battery module or USB port to begin the charging process. Similarly, as mentioned earlier, the reversible plug-in design of the TYPE-C charging allows for easy connection to the device regardless of whether it is facing up or down, avoiding the embarrassment of plugging it in backwards or frequently fiddling with it. TYPE-C charging uses the USB 3.1 standard, offering faster transfer speeds of up to 10Gbps.

[0052] In the above embodiments, preferably, the alarm device of the Bluetooth bracelet 3 includes a voice alarm 305 and a vibration alarm; wherein the voice alarm 305 has a mute function by operation, the mute function can be realized by a mute control circuit, and the mute control circuit can be triggered by operating the bracelet power switch 303 described below.

[0053] Specifically, for voice alarms, the Bluetooth bracelet 3 integrates a miniature speaker 305 or a voice synthesis chip, along with corresponding control circuitry. When the distance exceeds the limit, the control circuit activates the voice synthesis chip or a preset voice alarm message, emitting a voice alarm sound through the miniature speaker. For vibration alarms, the bracelet is equipped with a vibration motor. When an alarm is needed, the control circuit sends a signal to the vibration motor, causing it to vibrate strongly to alert the user. The combined use of the voice alarm 305 and the vibration alarm provides both auditory and tactile alerts to emergencies. This dual alarm method is more intuitive and effective, quickly attracting the user's attention. In noisy environments, vibration alarms may be more effective; while in quiet settings, voice alarms can more clearly convey emergency information, effectively complementing each other. The voice alarm 305 has a mute function, enabling the Bluetooth bracelet 3's alarm function to be used in special occasions such as meetings and hospitals.

[0054] In the above embodiments, further: (e.g.) Figure 4 The Bluetooth bracelet 3 (as shown) also includes a RESET interface 301, a bracelet power indicator 302, a bracelet power switch 303, and a bracelet Bluetooth indicator 304.

[0055] It should be noted that the RESET interface 301 is typically a tiny button or contact located inside or in a concealed position within the band to prevent accidental operation. When the RESET button or contact is pressed, it sends a reset signal to the band's main control chip. The main control chip can recognize and respond to the RESET signal. Upon receiving the RESET signal, the software system of the main control chip immediately performs a reset operation, clearing the current operating state and data, and restarting the band. The band's power indicator 302 is typically an LED located on the surface or side of the band for easy observation by the user. The LED is connected to the battery through the band's power circuit. The main control chip can control the on / off state of the power indicator 302. For example, when the band is charging, the power indicator 302 will light up red; when the band's battery is low, the power indicator 302 may flash to remind the user to charge. The band's power switch 303 is a push-button switch located on the side or bottom of the band. The power switch 303 of the wristband is connected to the wristband battery and the main control chip through the wristband's power circuit. When the user operates the power switch 303, the power switch 303 sends a signal to the main control chip to power on, power off, or adjust settings. The main control chip will then perform corresponding operations based on the received signal, such as starting the wristband's operating system or turning off the wristband's power. The RESET interface 301 provides a quick recovery method for the wristband. When the wristband experiences a software malfunction or freezes, the user can press the RESET button to restart the wristband and restore normal operation. During the development and debugging phase, the RESET interface 301 also facilitates developers to reset the wristband to test its stability and reliability. The wristband power indicator 302 can intuitively display the wristband's power status, such as charging status and low battery, allowing users to easily understand the wristband's battery level. When the wristband's battery is low, the flashing of the power indicator 302 can remind the user to charge it in time to avoid the wristband shutting down due to depletion of power. The power switch 303 allows users to easily control the wristband's power-on and power-off states and set the alarm distance. Furthermore, the wristband can be turned off when not in use to save power. The power switch 303 is simple and intuitive; users can easily power on, power off, or set parameters with a simple press, improving usability. The Bluetooth indicator light 304 typically consists of LEDs or other light-emitting elements, precisely positioned within the Bluetooth wristband 3 so users can clearly see its status. The Bluetooth wristband 3 integrates a Bluetooth module for communication with the bag's Bluetooth module. The status of the Bluetooth module (such as connection, disconnection, data transmission, etc.) directly affects the display of the Bluetooth indicator light 304. The control circuit of the Bluetooth wristband 3 receives status signals from the Bluetooth module and controls the on / off state and flashing frequency of the Bluetooth indicator light 304 based on these signals.

[0056] In the above embodiments, further: (e.g.) Figure 1 , Figure 7 (As shown) The touch screen 2 is fixedly installed inside the bag; the bag is equipped with a bag Bluetooth indicator light 204; the touch screen 2 is equipped with a RESET button 201, a touch screen power indicator light 202, and a touch screen power switch 203.

[0057] It should be noted that the touchscreen 2 is connected to the inner wall of the bag via a specific fixing structure (such as a bracket or slot) to ensure its stability and security within the bag. The design of the fixing structure needs to consider the ease of operation and aesthetics of the touchscreen 2. The RESET button 201 is typically designed as a small button, located near or below the touchscreen 2. Internally, the RESET button 201 is connected to the MCU inside the bag via a circuit. When the RESET button 201 is pressed, a reset signal is sent to the MCU. Upon receiving the reset signal, the MCU restarts the touchscreen 2 to restore its normal operating state. The touchscreen power indicator 202 is a small LED, usually located near the touchscreen 2 or in a prominent position inside the bag. The LED is connected to the power management system of the touchscreen 2 via a circuit. The power management system of the touchscreen 2 controls the on / off state of the power indicator 202. When the touchscreen 2 is powered on, the power indicator light 202 will illuminate; when the touchscreen 2 is off or the battery is low, the power indicator light 202 will turn off or flash to alert the user. The touchscreen power switch 203 is a push-button switch, usually located near the touchscreen 2 or in an easily accessible position inside the bag. The touchscreen power switch 203 is connected to the power management system of the touchscreen 2 via a circuit and is used to control the power-on and power-off states of the touchscreen 2. The addition of components such as the RESET button 201, the touchscreen power indicator light 202, and the touchscreen power switch 203 makes the operation of the bag more intuitive and convenient. Users can quickly understand the status of the touchscreen 2 and perform corresponding operations through these components. The reset function of the RESET button 201 ensures that the touchscreen 2 can quickly return to normal operation in case of a malfunction. The touchscreen power indicator light 202 can display the power status of the touchscreen 2 in real time, helping users to understand the battery status of the touchscreen 2 in a timely manner, thereby avoiding the situation where the touchscreen 2 becomes unusable due to depletion of power. The touchscreen power switch 203 allows users to easily control the power on and off status of the touchscreen 2. Similarly, the bag's Bluetooth indicator light 204 is typically composed of LEDs or other light-emitting elements, precisely installed in a specific location within the bag so that the user can clearly see its status. The bag integrates a Bluetooth module for communication with the Bluetooth bracelet 3's Bluetooth module. The status of the bag's Bluetooth module (such as connection, disconnection, data transmission, etc.) directly affects the display of the bag's Bluetooth indicator light 204. The control circuit of the bag's Bluetooth module receives the status signals from the Bluetooth module and controls the on / off state and flashing frequency of the bag's Bluetooth indicator light 204 based on these signals.

[0058] In the above embodiments, it further includes a bag battery module and a bag power measurement module. The bag battery module is connected to the bag power measurement module, and the bag power measurement module is connected to the touch screen 2 and displays the power level through the touch screen 2.

[0059] The bag's battery module is connected to the bag's power measurement module via wires or connectors, providing it with power. The power measurement module, in turn, connects to the circuitry of touchscreen 2 via a specific interface (such as I2C or SPI) for data communication. Internally, the power measurement module includes voltage and current detection circuits to monitor the battery module's voltage and current values ​​in real time. Through these detection circuits, the power measurement module calculates the battery's remaining power, typically expressed as a percentage. The power measurement module sends the calculated power data to touchscreen 2 via the interface. Touchscreen 2 receives the data and displays it on its screen for user viewing. Users can view the bag's power information, including current power level and remaining usage time, on the touchscreen 2 interface, allowing for timely charging. Displaying power information on touchscreen 2 provides users with a clear understanding of the bag's power status, preventing unexpected shutdowns or malfunctions due to insufficient power. The power measurement module's real-time monitoring of battery power and its transmission of data to touchscreen 2 ensures users always have access to the latest power information. The detection technology and algorithms of the power measurement module can accurately calculate the remaining battery power, helping users to better plan their usage time and avoid wasting or running out of power.

[0060] In the above embodiments, the timer is further described as a radio-controlled clock, a GPS / BeiDou satellite timer, or an atomic clock timer.

[0061] Among them, the radio-controlled clock achieves time synchronization through a built-in miniature radio receiving system. The GPS / BeiDou satellite timer receives time signals from GPS or BeiDou satellites, allowing it to operate independently of other networks and supporting use in special environments such as mountainous areas, underground locations, and airplanes. The GPS / BeiDou satellite timer typically uses a high-precision crystal oscillator for time acquisition. The atomic clock timer utilizes atomic oscillators to measure time, providing an extremely high-precision time reference and maintaining time stability, even in the event of a temporary interruption of satellite signals.

[0062] In the above embodiments, preferably, the touch screen 2 includes a power display area, a Bluetooth pairing status display area, a working status display area, and a log query area.

[0063] It's worth noting that the Touchscreen 2, through its graphical interface and intuitive text prompts, allows users to easily understand the bag's current battery status, Bluetooth pairing status, and operational status. The Touchscreen 2's log query area provides a convenient way to view usage records for subsequent processing. The Touchscreen 2's battery display area reflects the bag's current battery status in real time, helping users charge promptly to avoid running out of power. Users can easily operate various functions within the bag via the Touchscreen 2, eliminating the need for cumbersome button operations or external device connections. The Touchscreen 2's log query area offers multiple filtering and sorting functions, allowing users to quickly find the information they need and improving query efficiency. The Touchscreen 2's Bluetooth pairing status display area allows users to understand the current Bluetooth connection status, preventing unauthorized access and use.

[0064] The working principle of this utility model is as follows: This utility model utilizes the distance control technology of Bluetooth communication and a timer, without relying on mobile phones, wireless networks or other auxiliary devices, to achieve safe management of the distance between bags and personnel. When the bag leaves the distance set by the wristband, it can immediately emit vibration and voice prompts without disconnecting the Bluetooth communication. It can also view the bag's opening and closing log, making it easy to trace the opening records during the period when the bag is out of the management range, preventing the bag from being lost or stolen. It is simple and practical.

[0065] As can be seen from the above description, this utility model uses the MCU as the control center to improve the overall performance and response speed of the system, has powerful data processing capabilities, and features a graphical display method on the touch screen that makes information intuitive and easy to understand, thus improving the user experience.

[0066] Both the Bluetooth bracelet and the bag Bluetooth module of this utility model comply with the Bluetooth communication standard and establish a wireless communication connection through the Bluetooth handshake protocol, ensuring secure, reliable, and stable communication. The communication distance is achieved through Bluetooth signal strength, which is inversely proportional to the distance; the farther the distance, the weaker the signal. When the communication distance exceeds a preset threshold, the signal strength drops significantly or is completely interrupted. At this time, the microcontroller (such as a single-chip microcomputer) inside the Bluetooth bracelet triggers an alarm mechanism, alerting the user through vibration, sound, or other means. This helps the user promptly detect the risk of lost or stolen bags and take appropriate preventative measures.

[0067] This utility model Bluetooth bracelet is a portable device that users can carry with them and operate easily. The alarm mechanism reminds users in an intuitive way, with vibration or sound prompts, enabling users to react quickly.

[0068] This utility model's bag battery module is connected to a bag power measurement module via wires or connectors to provide power. The bag power measurement module, in turn, connects to the circuitry of a touchscreen via a specific interface for data communication. The bag power measurement module typically includes voltage and current detection circuits to monitor the voltage and current values ​​of the bag battery module in real time. Through these detection circuits, the power measurement module can calculate the battery's current remaining power. The bag power measurement module sends the calculated power data to the touchscreen via the interface. After receiving the power data, the touchscreen displays it on the screen for the user to view. Displaying power information on the touchscreen provides a clear understanding of the bag's power status, preventing unexpected shutdowns or malfunctions due to insufficient power. It ensures users have access to power information at any time, helping them better plan their usage time and avoid wasting or running out of power.

[0069] This utility model's combination lock is connected to a luggage working status indicator module. When the combination lock's status changes (such as open or closed), it sends a corresponding signal to the luggage working status indicator module. The luggage working status indicator module is connected to an MCU, which converts the combination lock status signal into a digital signal that the MCU can recognize and sends it to the MCU. The MCU stores the relevant information in the luggage log memory. Users can view the luggage's most recent opening date on the touch screen to determine if there has been any unauthorized opening or use. At the same time, this log information can also serve as evidence in case of lost or damaged luggage, helping users protect their rights.

[0070] This utility model timer can receive signals from the National Time Service Center or other standard time sources to obtain the current standard time, and send it to the MCU. The MCU, as the central processing unit, receives, processes and stores this data, and then sends it to the touch screen through another interface. The touch screen displays the time, which can provide very accurate time and avoid the timekeeping errors that may occur with traditional timekeeping tools (such as mechanical watches or quartz watches).

[0071] This utility model is equipped with a wristband placement slot, which effectively prevents the wristband from being squeezed and accidentally activated, allowing the Bluetooth wristband to be easily fixed inside the bag, avoiding the risk of loss or damage during carrying, saving luggage space, improving travel convenience, and allowing it to be taken out at any time when needed. The fixed design of the wristband placement slot and the bag body is neat and integrated, enhancing the overall aesthetics.

[0072] This utility model's RESET interface provides a quick recovery method for the wristband. When the wristband experiences a software malfunction or freezes, the user can restart the wristband by pressing the RESET button to restore normal operation. During development and debugging, the RESET interface also facilitates developers to reset the wristband to test its stability and reliability. The wristband's power indicator light clearly displays the wristband's power status, allowing users to easily monitor the battery level. The wristband's power switch allows users to easily control the wristband's power-on and power-off states and set the alarm distance. Furthermore, the wristband can be turned off when not in use to save power. The wristband's power switch is simple and intuitive; users can easily power on, power off, or set settings with a simple press, improving the wristband's usability.

[0073] This utility model's touchscreen is connected to the inner wall of the bag, ensuring its stability and safety inside the bag. It is easy to operate and aesthetically pleasing. The RESET button will restart the touchscreen to restore its normal working state. The touchscreen power indicator light can display the touchscreen's power status in real time, helping users to understand the touchscreen's battery level and avoid the situation where it becomes unusable due to depleted battery. Through the touchscreen power switch, users can conveniently control the touchscreen's power-on and power-off states.

[0074] This utility model's Bluetooth indicator light is used to clearly indicate the status of the Bluetooth module (such as connection, disconnection, data transmission, etc.). The control circuit of the Bluetooth module is responsible for receiving the status signals of the Bluetooth module and controlling the on / off state and flashing frequency of the Bluetooth indicator light according to these signals, providing clear prompts so that users can keep track of the usage status in a timely manner.

[0075] The various embodiments in this specification are described in a related manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0076] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. Any modifications and equivalent substitutions made within the spirit and principles of the present utility model are included within the scope of protection of the present utility model.

Claims

1. A secure case, comprising an MCU and a combination lock (1), characterized in that: It also includes a Bluetooth wristband (3) and a bag Bluetooth module; the Bluetooth wristband (3) wirelessly communicates with the bag Bluetooth module according to the Bluetooth handshake protocol, and the Bluetooth wristband (3) will alarm once the communication distance between the Bluetooth wristband (3) and the bag Bluetooth module exceeds a certain value.

2. The security case according to claim 1, characterized in that: It also includes a touch screen (2), a bag working status indicator module, a bag log storage, and a timer; the input end of the bag working status indicator module is connected to the output end of the combination lock (1), the output end of the bag working status indicator module is connected to the MCU and then connected to the bag log storage through the MCU, the bag log storage is used to store the opening date of the bag; the timer is connected to the MCU and then connected to the touch screen (2) through the MCU and displays the time through the touch screen (2); the touch screen (2) is connected to the MCU to receive instructions and display information; the MCU is responsible for processing the input signals of the touch screen (2) and reading the data of each module before performing the corresponding operation.

3. The security case according to claim 1, characterized in that: The Bluetooth bracelet (3) is equipped with a bracelet placement slot, which is fixedly installed inside the bag.

4. The security case according to claim 1 or 3, characterized in that: The Bluetooth wristband (3) is magnetically charged or charged via TYPE-C.

5. The security case according to claim 1, characterized in that: The Bluetooth bracelet (3) has alarm devices including a voice alarm (305) and a vibration alarm.

6. The security case according to claim 1 or 5, characterized in that: The Bluetooth bracelet (3) also includes a RESET interface (301), a bracelet power indicator (302), a bracelet power switch (303), and a bracelet Bluetooth indicator (304).

7. The security case according to claim 2, characterized in that: The touch screen (2) is fixed inside the bag; the bag is equipped with a bag Bluetooth indicator light (204); the touch screen (2) is equipped with a RESET button (201), a touch screen power indicator light (202), and a touch screen power switch (203).

8. The security case according to claim 2, characterized in that: It also includes a bag battery module and a bag power measurement module. The bag battery module is connected to the bag power measurement module, and the bag power measurement module is connected to the touch screen (2) and displays the power through the touch screen (2).

9. The security case according to claim 2, characterized in that: The timer is a radio-controlled clock, a GPS / BeiDou satellite timer, or an atomic clock timer.

10. The security case according to claim 1, characterized in that: It also includes a laptop storage area (4).

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