A cloud tag for logistic boxes

Abstract

The utility model provides a kind of cloud label for logistics box, including shell and detection circuit, shell includes bottom shell and top cover, support piece two is equipped in top cover inner wall, one side of support piece two is installed in top cover side wall, and the other side lower part is equipped with clamping groove;Detection circuit includes circuit board assembly, temperature and humidity sensor, inclination sensor, vibration sensor, battery, power control module, data storage module;PCB is integrated with control chip and communication module on board;Control chip respectively with temperature and humidity sensor, inclination sensor, vibration sensor, power control module and data storage module carry out information interaction;The side wall of shell is equipped with and peripheral interface.This utility model integrates multiple high-precision sensors, can monitor the temperature and humidity, inclination state and vibration condition of logistics box in real time, provides comprehensive and accurate state information for logistics management.Communication module is provided simultaneously, ensures that data is stably and efficiently transmitted to cloud server, improves the real-time performance and reliability of logistics monitoring.

Description

Technical Field

[0001] This utility model belongs to the field of cloud tag technology, and in particular relates to a cloud tag for logistics boxes. Background Technology

[0002] In modern logistics and transportation, real-time monitoring and management of shipping containers are crucial for ensuring cargo safety and transportation efficiency. However, traditional monitoring methods mainly rely on manual inspection or single-function sensor devices. These methods are not only untimely and inaccurate in their data, but also lack real-time data transmission and effective data storage capabilities, making it difficult to meet the demands of modern logistics for precise monitoring and data analysis.

[0003] In addition, existing equipment has many shortcomings in terms of structural reliability, sensor integration, communication module compatibility, and power management, which limit its application in complex logistics environments. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model aims to propose a cloud tag for logistics boxes. This intelligent cloud tag integrates multiple sensors, possesses efficient communication capabilities, reliable power management, and data security protection, thereby enabling comprehensive and real-time monitoring of logistics boxes and improving the level of intelligent logistics management.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A cloud tag for logistics boxes includes a shell and a detection circuit, wherein:

[0007] The outer shell includes a bottom shell for connecting to the logistics box and a top cover for connecting to the bottom shell. The bottom shell and the top cover form a sealed cavity after being connected. The inner wall of the top cover is provided with a second support member. One side of the second support member is installed on the side wall of the top cover, and the lower part of the other side is provided with a slot for installing a PCB board.

[0008] The detection circuit is installed in the cavity and includes a circuit board assembly, a temperature and humidity sensor for detecting environmental parameters, a tilt sensor for detecting tilt, a vibration sensor for detecting vibration signals, a battery for powering the detection circuit, a power control module for controlling the battery's operating state, and a data storage module for storing data; wherein:

[0009] The circuit board assembly includes a PCB board, on which a control chip and a communication module are integrated; the control chip interacts with a temperature and humidity sensor, a tilt sensor, a vibration sensor, a power control module, and a data storage module via data lines.

[0010] The side wall of the housing is provided with a peripheral interface for data interaction with the control chip.

[0011] Furthermore, the peripheral interface includes a TYPE-C interface.

[0012] Furthermore, the top cover is provided with limiting components at the four corners for limiting the four corners of the PCB board, and two of the limiting components arranged diagonally are provided with right-angle limiting grooves.

[0013] Furthermore, the top cover sidewall is provided with a second limiting member for limiting the PCB board, and the second limiting member is an L-shaped plate.

[0014] Furthermore, the tilt sensor is a six-axis sensor, model LSM6DS3TR;

[0015] The temperature and humidity sensor is model AHT20;

[0016] The vibration sensor is a triaxial sensor, model DA213B;

[0017] The control chip is model GD32L233CCT6.

[0018] Furthermore, the communication module is a 4G_Cat1 module, which is connected to the cloud server.

[0019] Furthermore, the TYPE-C interface is located on the side wall of the top cover, and a TYPE-C rubber plug is provided at the TYPE-C interface.

[0020] Furthermore, the bottom shell sidewall is evenly arranged with multiple buckles, and the top cover inner wall is provided with protrusions for engaging with the buckles.

[0021] Furthermore, an annular groove is formed on the upper surface of the bottom shell, and an annular protrusion is provided at the bottom of the top cover for engaging with the annular groove.

[0022] Furthermore, the detection circuit also includes an anti-tamper detection module.

[0023] Compared with existing technologies, the cloud tag for logistics boxes described in this utility model has the following advantages:

[0024] This utility model's cloud tag integrates multiple high-precision sensors to monitor the temperature, humidity, tilt status, and vibration of logistics boxes in real time, providing comprehensive and accurate status information for logistics management. Through a communication module, it ensures stable and efficient data transmission to the cloud server, greatly improving the real-time performance and reliability of logistics monitoring. Furthermore, the cloud tag has robust data storage capabilities, securely preserving important data even in the event of power outages or communication interruptions, preventing data loss and thus ensuring the integrity and security of logistics information.

[0025] This utility model's cloud tag employs a sealed outer shell and a robust connection structure, effectively preventing the intrusion of dust, moisture, and other external substances, significantly enhancing the device's stability and durability in harsh environments. Simultaneously, its power management module, through optimized charging and discharging control, extends battery life and improves the device's endurance. Attached Figure Description

[0026] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0027] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0028] Figure 2 An exploded view of the overall structure provided for an embodiment of this utility model;

[0029] Figure 3 A schematic diagram of the top cover structure provided for an embodiment of this utility model;

[0030] Figure 4 This is a schematic diagram of the internal structure of the top cover provided in an embodiment of the present utility model;

[0031] Figure 5 A schematic diagram of the bottom shell structure provided for an embodiment of this utility model;

[0032] Figure 6 A front view of the overall structure (without battery installed) provided for an embodiment of this utility model;

[0033] Figure 7 for Figure 6 Schematic diagram of the AA section;

[0034] Figure 8 for Figure 6 Schematic diagram of the BB cross section;

[0035] Figure 9 This is a schematic diagram of the control of the circuit board assembly provided in an embodiment of the present utility model;

[0036] Figure 10 A schematic diagram of the control circuit of the control chip provided in this embodiment of the utility model;

[0037] Figure 11 A schematic diagram of the temperature and humidity detection circuit provided in this embodiment of the utility model;

[0038] Figure 12 A schematic diagram of the tilt detection circuit provided in an embodiment of this utility model;

[0039] Figure 13 A schematic diagram of the vibration detection circuit provided in an embodiment of this utility model;

[0040] Figure 14 A schematic diagram of the communication module circuit provided in an embodiment of this utility model;

[0041] Figure 15 This is a schematic diagram of the SIM card interface circuit provided in an embodiment of the present utility model;

[0042] Figure 16 A schematic diagram of the power control module circuit provided in an embodiment of this utility model;

[0043] Figure 17 A schematic diagram of the charging management circuit provided in an embodiment of this utility model;

[0044] Figure 18 A schematic diagram of the data storage module circuit provided in an embodiment of this utility model;

[0045] Figure 19 A schematic diagram of the anti-tamper detection module circuit provided in this embodiment of the utility model;

[0046] Figure 20 A schematic diagram of the external interface provided for an embodiment of this utility model.

[0047] Explanation of reference numerals in the attached figures:

[0048] 1. Bottom shell; 11. Buckle; 12. Protrusion; 13. Annular groove; 14. Annular protrusion; 2. Top cover; 24. Support component two; 25. Slot; 26. TYPE-C interface; 27. TYPE-C rubber plug; 28. Limiting component one; 29. ​​Limiting component two; 31. Circuit board assembly; 311. PCB board; 32. Temperature and humidity sensor; 33. Tilt sensor; 34. Vibration sensor; 35. Battery; 36. Power control module; 37. Data storage module; 38. Control chip; 39. Communication module. Detailed Implementation

[0049] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0050] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0051] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0053] like Figures 1 to 20 As shown, a cloud tag for logistics boxes includes:

[0054] The outer shell includes a bottom shell 1 for connecting to the logistics box body and a top cover 2 connected to the bottom shell 1. The bottom shell 1 and the top cover 2 are connected to form a sealed cavity.

[0055] The detection circuit installed in the cavity includes a circuit board assembly 31, a temperature and humidity sensor 32 for detecting environmental parameters, a tilt sensor 33 for detecting tilt status, a vibration sensor 34 for detecting vibration signals, a battery 35 for powering the detection circuit, a power control module 36 for controlling the operating state of the battery 35, and a data storage module 37 for storing data; wherein:

[0056] The circuit board assembly 31 includes a PCB board 311, on which a control chip 38 and a communication module 39 are integrated; the control chip 38 interacts with the temperature and humidity sensor 32, the tilt sensor 33, the vibration sensor 34, the power control module 36, and the data storage module 37 via data lines.

[0057] A TYPE-C interface 26 for data interaction with the control chip 38 is provided on the side wall of the housing.

[0058] In a preferred embodiment of this utility model, the inner wall of the top cover 2 is provided with a second support member 24. One side of the second support member 24 is installed on the side wall of the top cover 2, and the lower part of the other side is provided with a slot 25, which is used to install the PCB board 311.

[0059] Specifically, the slot 25 is used to fix the PCB board 311, so that the PCB board 311 is precisely positioned inside the equipment, preventing it from moving or vibrating during the operation of the equipment, thereby protecting the electronic components on the PCB board from damage.

[0060] In a preferred embodiment of the present invention, the top cover 2 is provided with limiting members 28 at the four corners for limiting the four corners of the PCB board 311, wherein two of the limiting members 28 arranged diagonally are provided with right-angle limiting grooves.

[0061] The top cover 2 has a limiting member 29 on its side wall for limiting the PCB board 311. The limiting member 29 is an L-shaped plate.

[0062] Specifically, limiting member 1 28 and limiting member 29 are used to accurately position the PCB board 311 inside the top cover 2, ensuring the correct position of the PCB board 311 inside the equipment, preventing the PCB board 311 from moving or vibrating during equipment operation, thereby protecting the electronic components on the PCB board 311 from damage.

[0063] In a preferred embodiment of this utility model, the tilt sensor 33 is a six-axis sensor, model LSM6DS3TR;

[0064] The temperature and humidity sensor 32 is model AHT20;

[0065] The vibration sensor 34 is a triaxial sensor, model DA213B;

[0066] The control chip 38 is model GD32L233CCT6.

[0067] Specifically, the control circuit connection relationship of the control chip 38 is as follows:

[0068] The first and tenth pins of the control chip 38 are connected to VCC_3.3V to power the chip. Capacitors C301, C303 and C304 are connected in parallel between VCC_3.3V and GND for power filtering to ensure power stability.

[0069] The second pin of the control chip 38 is connected to the anti-tamper detection module, and the second pin and the third pin of the control chip 38 are respectively connected to the crystal oscillator circuit.

[0070] The seventh and eighth pins of the control chip 38 are connected to the reset circuit and GND respectively. Capacitors C305 and C306 are connected in parallel between the ninth pin of the control chip 38 and GND to filter out power supply noise and ensure the voltage of the VREFP pin is stable. An inductor L301 is connected in series between the ninth pin of the control chip 38 and VCC_3.3V to suppress high-frequency noise on the power line.

[0071] The eleventh, thirteenth, forty-seventh, and forty-eighth pins of the control chip 38 are all connected to the tilt sensor 33, and the twelfth and fourteenth pins of the control chip 38 are all connected to the voltage acquisition circuit.

[0072] Pins 15, 16, 17, and 18 of the control chip 38 are all connected to the storage circuit; pins 21, 22, 23, 24, and 29 of the control chip 38 are all connected to the communication module 39; pins 22 and 23 of the control chip 38 are respectively connected to the CAT1_uart serial port.

[0073] The 25th and 26th pins of the control chip 38 are both connected to the temperature and humidity sensor 32; the 37th pin of the control chip 38 is connected to the VCC 3.7V power supply circuit.

[0074] The 28th, 31st, and 32nd pins of the control chip 38 are connected to the vibration sensor 34; the 35th pin of the control chip 38 is connected to VCC_3.3V through resistor R303; the 36th pin of the control chip 38 is connected to GND through resistor R304; and the 35th and 36th pins of the control chip 38 are respectively connected to the programming port H1.

[0075] The thirty-eighth and thirty-ninth pins of the control chip 38 are both connected to the USB1 interface circuit, and the thirty-eighth and thirty-ninth pins of the control chip 38 are respectively connected to the UART interface; the forty-sixth pin of the control chip 38 is connected to GND through resistor R302.

[0076] The anti-tamper detection module includes an inter-board socket H801 and a resistor R801. The first pin of the inter-board socket H801 is connected to the second pin of the control chip 38, and the first pin of the inter-board socket H801 is connected to VCC_3.3V through the resistor R801. The second pin of H801 is connected to GND.

[0077] Specifically, under normal conditions, the first pin of H801 is connected to VCC_3.3V through resistor R801 and maintains a high level. When the device is disassembled, the connection of H801 is broken, causing the level of the first pin to change from high to low. This level change wakes up the control chip 38, thereby triggering an alarm signal.

[0078] The reset circuit includes a resistor R301, a capacitor C302, and a reset button U302. The resistor R301 is connected in series with the seventh pin of the control chip 38 and connected to VCC_3.3V. The capacitor C302 and the reset button U302 are connected in parallel between the seventh pin of the control chip 38 and GND.

[0079] Specifically, the reset circuit is mainly used to reset the control chip 38. When the system malfunctions or needs to be restarted, the reset circuit can ensure that the control chip 38 can be safely restored to a known state, thereby avoiding system crash or data loss.

[0080] The crystal oscillator circuit includes a crystal oscillator X301. The first pin of the crystal oscillator X301 is connected to the third pin of the control chip 38 and is connected to GND through a capacitor C308. The second pin of the crystal oscillator X301 is connected to the fourth pin of the control chip 38 and is connected to GND through a capacitor C309.

[0081] Specifically, the crystal oscillator circuit is used to provide a stable clock signal for the control chip 38. The clock signal ensures the synchronous operation of various parts inside the control chip 38, thereby ensuring the coordination and reliability of the equipment operation.

[0082] The tilt detection circuit of the tilt sensor 33 is connected as follows:

[0083] The first, second, and third pins of the tilt sensor 33 are all connected to GND. The fourth pin of the tilt sensor 33 is connected to the eleventh pin of the control chip 38 and is connected to VCC_3.3V through resistor R510. The fifth pin of the tilt sensor 33 is connected to VCC_3.3V and is connected to GND through capacitor C503. The sixth and seventh pins of the tilt sensor 33 are both connected to GND. The eighth pin of the tilt sensor 33 is connected to VCC_3.3V and is connected to GND through capacitor C504. The ninth pin of the tilt sensor 33 is connected to the thirteenth pin of the control chip 38, and is also connected to VCC_3.3V through resistor R511; the twelfth pin of the tilt sensor 33 is connected to VCC_3.3V through resistor R504, the thirteenth pin of the tilt sensor 33 is connected to VCC_3.3V through resistor R509, the fourteenth pin of the tilt sensor 33 is connected to VCC_3.3V through resistor R508, and the thirteenth and fourteenth pins of the tilt sensor 33 are connected to the forty-seventh and forty-eighth pins of the control chip 38, respectively.

[0084] Specifically, the tilt sensor 33 is connected to the control chip 38 through its pins to collect the tilt angle data of the logistics box and transmit it to the control chip 38 for processing. By accurately monitoring the tilt state, the system can respond to attitude changes in a timely manner.

[0085] The voltage acquisition circuit includes a resistor R305 connected in series between the twelfth pin of the control chip 38 and VB, a resistor R306 connected in series between the twelfth pin and the fourteenth pin of the control chip 38, and a capacitor C307 connected in series between the twelfth pin of the control chip 38 and GND.

[0086] Specifically, the voltage acquisition circuit monitors and measures the voltage at pin 12 of control chip 38 relative to ground (GND). Resistors R305 and R306 are used for voltage division, reducing the higher input voltage VB to a level suitable for processing by control chip 38. Capacitor C307 is used for filtering, smoothing voltage fluctuations and providing a more stable voltage reading.

[0087] The storage circuit of the data storage module 3 specifically includes a storage chip U701. The first pin of the storage chip U701 is connected to the fifteenth pin of the control chip 38 and is connected to VCC_3.3V through a resistor R702. The second, fifth, and sixth pins of the storage chip U701 are connected to the seventeenth, eighteenth, and sixteenth pins of the control chip 38, respectively. The fourth pin of the storage chip U701 is grounded. The third, seventh, and eighth pins of the storage chip U701 are all connected to VCC_3.3V through a resistor R701.

[0088] Specifically, the storage chip U701 provides non-volatile data storage for the control chip 38, which is used to save important system data, user data or program code. Even after the power is disconnected or the system is restarted, the data can still be retained, thereby improving data security.

[0089] The specific connection relationship of the temperature and humidity detection circuit of the temperature and humidity sensor 32 is as follows:

[0090] The second pin of the temperature and humidity sensor 32 is connected to VCC_3.3V through resistor R507. A capacitor C505 is connected in series between resistor R507 and GND. A resistor R505 is connected in series between resistor R507 and the third pin of the temperature and humidity sensor 32. A resistor R506 is connected in series between resistor R507 and the fourth pin of the temperature and humidity sensor 32. The third and fourth pins of the temperature and humidity sensor 32 are connected to the twenty-fifth and twenty-sixth pins of the control chip 38, respectively.

[0091] Specifically, the temperature and humidity sensor 32 measures the ambient temperature and humidity and transmits the data to the control chip 38. Resistors R507, R505, and R506, along with capacitor C505, together form a signal conditioning circuit to ensure that the sensor output signal is within the acceptable level range of the control chip 38, while reducing noise and interference.

[0092] The specific connection relationship of the vibration detection circuit of the vibration sensor 34 is as follows:

[0093] The second pin of the vibration sensor 34 is connected to resistor R502 and the thirty-second pin of the control chip 38, respectively. Resistor R502 is connected to VCC_3.3V. The third pin of the vibration sensor 34 is connected to VCC_3.3V and connected to GND through capacitor C501. The fifth pin of the vibration sensor 34 is connected to the twenty-eighth pin of the control chip 38 and connected to VCC_3.3V through resistor R503. The seventh pin of the vibration sensor 34 is connected to VCC_3.3V and connected to GND through capacitor C502. The eighth and ninth pins of the vibration sensor 34 are both connected to GND. The twelfth pin of the vibration sensor 34 is connected to the thirty-first pin of the control chip 38 and connected to VCC_3.3V through resistor R501.

[0094] Specifically, vibration sensor 34 is used to detect vibration or impact events in the logistics box. Its output signal can be read and processed by control chip 38 to monitor and respond to vibration events. Through precise signal conditioning and filtering, vibration sensor 34 can provide more accurate vibration data, thereby improving the monitoring accuracy of the entire system.

[0095] The power control module 36 includes a VCC 3.7V power supply circuit, a VCC 3.3V power supply circuit, a test circuit, and a charging management circuit;

[0096] The VCC3.7V power supply circuit includes a buck converter U101, model TLV62569DBVR, used to convert the higher input voltage VB to the lower output voltage VCC3.7V. The fourth pin of the buck converter U101 is connected to VB and to GND through capacitor C101. The first pin of the buck converter U101 is connected to the thirty-seventh pin of the control chip 38. The second pin of the buck converter U101 is grounded. The third pin of the buck converter U101 outputs VCC3.7V through inductor L101. Inductor L101 is connected to resistor R101 and capacitor C103. Resistor R101 is connected to the fifth pin of the buck converter U101 and resistor R102. Resistor R102 and capacitor C103 are both connected to GND.

[0097] The VCC_3.3V power supply circuit includes a voltage regulator U102, model 662K, which is used to step down the input voltage VB and stabilize it to a 3.3V output. The first pin of the voltage regulator U102 is connected to GND, the third pin of the voltage regulator U102 is connected to the input voltage VB and is also connected to GND through capacitor C102, and the second pin of the voltage regulator U102 outputs VCC_3.3V and is connected to GND through capacitor C104.

[0098] The test circuit includes a voltage test point VBAT and a ground test point, with the ground test point connected to GND. The voltage test point VBAT is connected to the input voltage VB through a resistor R1, and is connected to GND through a diode D101. The voltage test point VBAT is connected to the first pin of connector P101, and the second, third, and fourth pins of connector P101 are all connected to GND.

[0099] The charging management circuit includes a management chip U201, model LGS4056HDA. The first and third pins of the management chip U201 are grounded and connected to GND. The second pin of the management chip U201 is connected to GND via resistor R203. The fourth pin of the management chip U201 is connected to +5V, and a resistor R204 and a capacitor C201 are connected in series with GND. The fifth pin of the management chip U201 is connected to the battery 35, and a capacitor C202 is connected to GND. The sixth pin of the management chip U201 is connected to +5V via a diode LED201 and a resistor R206. The seventh pin of the management chip U201 is connected to +5V via a diode LED202 and a resistor R205. The eighth pin of the management chip U201 is connected to +5V.

[0100] The fifth pin of the management chip U201 is connected to the battery 35 to charge the battery 35, and the battery 35 provides the input voltage VB to the power control module 36.

[0101] The interface circuit of the TYPE-C interface 26 is used to provide a +5V voltage to the charging management circuit. The interface circuit includes an interface USB1. The first and twelfth pins of the interface USB1 are connected to GND. The second and eleventh pins of the interface USB1 are connected to the +5V voltage. The third and ninth pins of the interface USB1 are connected to the reset circuit. The fourth pin of the interface USB1 is connected to GND through a resistor R201. The fifth and seventh pins of the interface USB1 are connected to the thirty-eighth pin of the control chip 38. The sixth and eighth pins of the interface USB1 are connected to the thirty-ninth pin of the control chip 38. The tenth pin of the interface USB1 is connected to GND through a resistor R202.

[0102] Specifically, the management chip U201 is responsible for monitoring and controlling the charging process of the battery 35, ensuring safe and efficient charging and preventing overcharging or undercharging. The USB1 interface circuit is designed to allow the charging management circuit to be powered via the USB interface, increasing the flexibility and compatibility of the device, allowing users to charge the device via the USB interface.

[0103] In a preferred embodiment of this utility model, the communication module 39 is a 4G_Cat1 module, and the 4G_Cat1 module is connected to the cloud server.

[0104] Specifically, the 4G_Cat1 module U401 is model L511CN-2C, and the circuit connection relationship of the communication module 39 is as follows:

[0105] The first, tenth, twenty-seventh, thirty-fourth, thirty-sixth, thirty-seventh, fortieth, and forty-first pins of the 4G_Cat1 module U401 are grounded; the second pin of the 4G_Cat1 module U401 is connected to the radio frequency circuit; the seventh pin of the 4G_Cat1 module U401 is connected to the collector of transistor Q401; the base of transistor Q401 is connected to the twenty-fourth pin of control chip 38 through resistor R401; and the emitter of transistor Q401 is grounded.

[0106] The eleventh, twelfth, thirteenth, and fourteenth pins of the 4G_Cat1 module U401 are connected to the SIM card interface circuit, respectively; the seventeenth pin of the 4G_Cat1 module U401 is connected to the collector of transistor Q402; the collector of transistor Q402 is connected to the twenty-fourth pin of the 4G_Cat1 module U401 through resistor R403; the base of transistor Q402 is connected to the twenty-fourth pin of the 4G_Cat1 module U401 through resistor R402; and the emitter of transistor Q402 is connected to the twenty-second pin of the control chip 38.

[0107] The 18th pin of the 4G_Cat1 module U401 is connected to the emitter of transistor Q403. The base of transistor Q403 is connected to the 24th pin of the 4G_Cat1 module U401 through resistor R405. The collector of transistor Q403 is connected to the 23rd pin of control chip 38 and resistor R404. Resistor R404 is connected to VCC_3.3V.

[0108] The 24th pin of the 4G_Cat1 module U401 is connected to GND via capacitor C410. The 25th pin of the 4G_Cat1 module U401 is connected to the network status interface. The 35th pin of the 4G_Cat1 module U401 is connected to capacitor C411 and resistor R406. Resistor R406 is connected to capacitor C412, inductor L402, inductor L403 and inductor L404. Capacitors C411 and C412 are both connected to GND. Inductors L402, L403 and L404 are connected to the first, second and third pins of antenna interface ANT2, respectively.

[0109] The 38th and 39th pins of the 4G_Cat1 module U401 are connected to the debugging interface DBG1. The 59th, 60th, 61st, and 82nd pins of the 4G_Cat1 module U401 are connected to the DP, DM, VBUS, and BOOT pins of the CAT1_USB communication interface, respectively. The 98th pin of the 4G_Cat1 module U401 is connected to the 21st pin of the control chip 38 through resistor R411.

[0110] The 42nd and 43rd pins of the 4G_Cat1 module U401 are both connected to VCC3.7V, and capacitors C401, C402, C403 and C404 are connected in parallel between VCC3.7V and GND.

[0111] Pins 89, 90, 91, 92, 93, and 94 of the 4G_Cat1 module U401 are all connected to GND.

[0112] Specifically, the 4G_Cat1 module U401 integrates communication functions, allowing devices to transmit and communicate via cellular networks. The second pin of the 4G_Cat1 module U401 connects to the radio frequency circuitry for handling the transmission and reception of wireless signals. Pins 11 to 14 of the 4Gat1 module U401 connect to the SIM card interface circuitry for SIM card identification and communication. Pins 59, 60, 61, and 82 of the 4Gat1 module U401 connect to the DP, DM, VBUS, and BOOT pins of the CAT1_USB communication interface, respectively, to enable USB data transmission and device booting.

[0113] The radio frequency circuit includes a power amplifier U403, model AT2659. The first and second pins of the power amplifier U403 are both connected to GND. The third pin of the power amplifier U403 is connected to inductor L407 and capacitor C414 in sequence. The capacitor C414 is connected to GND through inductor L405 and to antenna interface ANT1 through inductor L406. The fourth pin of the power amplifier U403 is connected to VCC_3.3V and to GND through capacitor C415. The fifth pin of the power amplifier U403 is connected to the twenty-first and twenty-ninth pins of the control chip 38. The sixth pin of the power amplifier U403 is connected to the seventh pin of the 4G_Cat1 module U401.

[0114] The SIM card interface circuit includes a patch SIM card U402. Pin C1 of the patch SIM card U402 is connected to pin fourteen of the 4G_Cat1 module U401. A capacitor C406 and a diode D404 are connected in parallel between pin C1 of the patch SIM card U402 and GND. Pin C1 of the patch SIM card U402 is connected to pin C7 of the patch SIM card U402 through resistor R412. Pin C7 of the patch SIM card U402 is connected to pin eleven of the 4G_Cat1 module U401 through resistor R410. A capacitor C407 and a diode D401 are connected in parallel between pin C7 of the SIM card U402 and GND; pin C2 of the patch SIM card U402 is connected to pin 12 of the 4G_Cat1 module U401 through resistor R406, and a capacitor C409 and a diode D403 are connected in parallel between pin C2 of the patch SIM card U402 and GND; pin C3 of the patch SIM card U402 is connected to pin 13 of the 4G_Cat1 module U401 through resistor R409, and a capacitor C408 and a diode D402 are connected in parallel between pin C3 of the patch SIM card U402 and GND.

[0115] Specifically, the main function of the patch SIM card U402 is to provide a connection between the 4G_Cat1 module U401 and the SIM card, enabling the device to recognize and use the SIM card, thereby accessing the mobile network.

[0116] In a preferred embodiment of the present invention, the TYPE-C interface 26 is disposed on the side wall of the top cover 2, and a TYPE-C rubber plug 27 is provided at the TYPE-C interface 26.

[0117] Specifically, the TYPE-C interface 26 is a multi-functional interface that enables high-speed data transmission, is suitable for various data transmission needs, and can also charge or power devices.

[0118] The purpose of the TYPE-C rubber plug 27 is to protect the TYPE-C interface 26 from dust, moisture or other contaminants when it is not in use, and also to prevent accidental short circuits.

[0119] In a preferred embodiment of the present invention, a plurality of buckles 11 are evenly arranged on the side wall of the bottom shell 1, and the inner wall of the top cover 2 is provided with a protrusion 12 for engaging with the buckles 11; an annular groove 13 is formed on the upper surface of the bottom shell 1, and an annular protrusion 14 is provided at the bottom of the top cover 2 for engaging with the annular groove 13.

[0120] Specifically, the design of the snap 11 and the protrusion 12 is used to achieve a secure physical connection between the bottom shell 1 and the top cover 2, ensuring that the components fit together tightly during assembly. The fit of the groove and the protrusion can be used to form a sealing connection, which helps to achieve a seal between the bottom shell 1 and the top cover 2, preventing dust, moisture or other external substances from entering the cavity.

[0121] How a cloud tag used in logistics boxes works:

[0122] (1) Initialization:

[0123] After the device is powered on, each module is initialized.

[0124] Power Management: The cloud tag is powered by battery 35, and the power control module 36 is responsible for monitoring and controlling the working status of battery 35 to ensure stable and reliable power supply.

[0125] The appropriate voltage is provided to the different modules of the cloud tag through the VCC_3.3V power supply circuit and the VCC3.7V power supply circuit.

[0126] (2) Periodic wake-up:

[0127] The device wakes up periodically at preset time intervals, obtains current location information through WIFI-SCAN, LBS and GNSS, and uploads the location information to the cloud server through communication module 39.

[0128] (3) Environmental monitoring:

[0129] Temperature and humidity monitoring: Temperature and humidity sensor 32 monitors the ambient temperature and humidity. If the monitored value exceeds the set threshold, an alarm message is sent to the cloud server.

[0130] Drop detection: The drop detection function of the tilt sensor 33 wakes up the control chip 38. After being woken up, the control chip 38 starts timing. It determines whether the drop height exceeds the threshold. If it exceeds the threshold, it reports the drop anomaly information to the cloud server.

[0131] Vibration detection: Vibration sensor 34 monitors the vibration signal of the logistics box in real time. When a slight vibration is detected, only the control chip 38 is activated, and no report is made to the cloud server. When the vibration exceeds the threshold, the vibration information is reported to the cloud server.

[0132] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cloud tag for logistics boxes, characterized in that, Includes a housing and a detection circuit, wherein: The outer shell includes a bottom shell for connecting to the logistics box and a top cover for connecting to the bottom shell. The bottom shell and the top cover form a sealed cavity after being connected. The inner wall of the top cover is provided with a second support member. One side of the second support member is installed on the side wall of the top cover, and the lower part of the other side is provided with a slot for installing a PCB board. The detection circuit is installed in the cavity and includes a circuit board assembly, a temperature and humidity sensor for detecting environmental parameters, a tilt sensor for detecting tilt, a vibration sensor for detecting vibration signals, a battery for powering the detection circuit, a power control module for controlling the battery's operating state, and a data storage module for storing data; wherein: The circuit board assembly includes a PCB board, on which a control chip and a communication module are integrated; the control chip interacts with a temperature and humidity sensor, a tilt sensor, a vibration sensor, a power control module, and a data storage module via data lines. The side wall of the housing is provided with a peripheral interface for data interaction with the control chip.

2. The cloud tag for logistics boxes according to claim 1, characterized in that: The peripheral interface includes a TYPE-C interface.

3. The cloud tag for logistics boxes according to claim 1, characterized in that: The top cover is provided with limiting components at the four corners for limiting the four corners of the PCB board, and two of the limiting components are provided with right-angle limiting grooves.

4. The cloud tag for logistics boxes according to claim 1, characterized in that: The top cover sidewall is provided with a limiting member two for limiting the PCB board, and the limiting member two is an L-shaped plate.

5. The cloud tag for logistics boxes according to claim 1, characterized in that: The tilt sensor is a six-axis sensor, model LSM6DS3TR; The temperature and humidity sensor is model AHT20; The vibration sensor is a triaxial sensor, model DA213B; The control chip is model GD32L233CCT6.

6. The cloud tag for logistics boxes according to claim 1, characterized in that: The communication module is a 4G_Cat1 module, which is connected to the cloud server.

7. The cloud tag for logistics boxes according to claim 2, characterized in that: The TYPE-C interface is located on the side wall of the top cover, and a TYPE-C rubber plug is provided at the TYPE-C interface.

8. The cloud tag for logistics boxes according to claim 1, characterized in that: The bottom shell sidewall is evenly arranged with multiple buckles, and the top cover inner wall is provided with protrusions for engaging with the buckles.

9. The cloud tag for a logistics box according to claim 1, characterized in that: The bottom shell has an annular groove on its upper surface, and the top cover has an annular protrusion at its bottom for engaging with the annular groove.

10. The cloud tag for a logistics box according to claim 1, characterized in that: The detection circuit also includes an anti-tamper detection module.

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