Asset tracking circuit for honeycomb paper label

Abstract

The utility model discloses an asset tracking circuit used for a honeycomb paper label. The asset tracking circuit comprises a master control circuit, an LED display circuit, a storage circuit, a battery circuit, a DCDC boost circuit, a button circuit, a tearing alarm circuit, a temperature sensor circuit, an acceleration sensor circuit and a voltage monitoring circuit. The asset tracking circuit used for the honeycomb paper label supports flexible selection and switching of an Internet of Things mobile communication LTE.M network and a low-power long-distance communication NB-IoT network, and realizes long-distance real-time transmission of data. Meanwhile, a GNSS satellite positioning technology is supported, the positioning limitation and limitation of the wireless short-distance positioning technology of the Internet of Things such as Bluetooth and Wi F i are made up, in addition, the label ingeniously achieves the tearing alarm function through the conductive material easy to tear, the functions of impact monitoring, temperature monitoring, battery voltage monitoring and data storage are achieved, and the safety of the label is improved. The honeycomb paper label can be widely applied to intelligent storage, logistics tray management, intelligent air transportation and intelligent sea transportation scenes, and helps Internet of Things users to realize real-time tracking and state monitoring of asset positions in the whole logistics supply chain process.

Description

Technical Field

[0001] The utility model belongs to the technical field of labels, and in particular relates to an asset tracking circuit for honeycomb paper labels. Background Art

[0002] At present, the cellular trackers on the market generally have the following disadvantages: the design is similar, the product size is large. Many of them only have GPS function, and cannot achieve global positioning in places with poor GPS signals. The supported network communication method is single, the scope of use is small, and it cannot be used in multiple regions around the world. The network security reliability is poor, the equipment deployment is poor, and it is easy to be destroyed or damaged by the outside world. There is no collision alarm prompt, no temperature monitoring function, no data storage, the tearing alarm method is complicated, the tearing alarm deployment operation is complicated, the production process cycle is long, and the cost is high. Utility Model Content

[0003] In view of this, the main purpose of the present invention is to provide an asset tracking circuit for a honeycomb paper tag.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] An embodiment of the utility model provides an asset tracking circuit for a honeycomb paper tag, the asset tracking circuit comprising a main control circuit, an LED display circuit, a storage circuit, a battery circuit, a DCDC boost circuit, a key circuit, a tearing alarm circuit, a temperature sensor circuit, an acceleration sensor circuit, and a voltage monitoring circuit. The main control circuit is respectively connected to the input end of the LED display circuit, the output end of the DCDC boost circuit, the output end of the key circuit, and the output end of the tearing alarm circuit. The main control circuit is connected to the acceleration sensor circuit, the storage circuit, the temperature sensor circuit, and the communication. The output end of the battery circuit is connected to the input end of the DCDC boost circuit. The main control circuit has communication and positioning functions, and is connected to an onboard LTE antenna circuit and an onboard GPS antenna circuit.

[0006] In the above scheme, the battery circuit includes a battery, a sixth resistor, a twentieth capacitor, a twenty-first capacitor, and a twenty-second capacitor. The positive electrode of the battery is connected to the first end of the sixth resistor, and the second end of the sixth resistor is respectively connected to the first end of the twentieth capacitor, the first end of the twenty-first capacitor, and the first end of the twenty-second capacitor. The negative electrode of the battery is respectively connected to the second end of the twentieth capacitor, the second end of the twenty-first capacitor, and the second end of the twenty-second capacitor and then grounded.

[0007] In the above scheme, the DCDC boost circuit includes a sixth inductor, a boost chip, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a ninth capacitor, a tenth capacitor, a diode, a 3.6V voltage output terminal, and a 3.3V voltage output terminal. The first end of the sixth inductor is respectively connected to the first end of the twenty-second capacitor, the IN terminal of the boost chip, and the first end of the seventh resistor. The second end of the sixth inductor is connected to the LX terminal of the boost chip. The second end of the seventh resistor is connected to the EN terminal of the boost chip. The OUT terminal of the boost chip is respectively connected to the first end of the eighth resistor, the first end of the ninth capacitor, the first end of the tenth capacitor, and the first end of the tenth resistor. The FB terminal of the boost chip is respectively connected to the second end of the eighth resistor, the first end of the ninth resistor, and the second end of the ninth capacitor. The second end of the tenth resistor is respectively connected to the 3.6V voltage output terminal and the positive electrode of the diode, the negative electrode of the diode is connected to the 3.3V voltage output terminal, and the second end of the ninth resistor and the second end of the tenth capacitor are both grounded.

[0008] In the above scheme, the main control circuit includes a wireless transceiver chip, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor, a seventeenth capacitor, an eighteenth capacitor, a nineteenth capacitor, a twenty-third capacitor, a twenty-fourth capacitor, a twenty-fifth capacitor, a first inductor, and a nineteenth resistor. The first end of the twenty-third capacitor is respectively connected to the first end of the twenty-fourth capacitor, the first end of the twenty-fifth capacitor, the first end of the nineteenth resistor, the VDD1 end of the wireless transceiver chip and the 3.6V voltage output end. The second end of the twenty-third capacitor, the second end of the twenty-fourth capacitor, and the second end of the twenty-fifth capacitor are all grounded. The second end of the nineteenth resistor is connected to the ENABLE end of the wireless transceiver chip. The first end of the seventeenth capacitor is respectively connected to the 3.6V voltage output end. The voltage output terminal of the wireless transceiver chip is connected to the VDD2 terminal of the wireless transceiver chip, the second end of the seventeenth capacitor is grounded, the first end of the twelfth capacitor is respectively connected to the first end of the thirteenth capacitor, the VDD_GPIO terminal of the wireless transceiver chip and the 3.3V voltage output terminal, the second end of the twelfth capacitor and the second end of the thirteenth capacitor are both grounded, the first end of the fourteenth capacitor is connected to the DEC0 terminal of the wireless transceiver chip, the second end of the fourteenth capacitor is grounded, the first end of the nineteenth capacitor is respectively connected to the first end of the first inductor and the GPS terminal of the wireless transceiver chip, the second end of the nineteenth capacitor is grounded, the second end of the first inductor is connected to the first end of the eighteenth capacitor, the second end of the eighteenth capacitor is grounded, and the GND_Sh ie ld terminals of the wireless transceiver chip are all grounded.

[0009] In the above scheme, the LTE antenna circuit includes a second inductor, a third inductor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, and a first antenna. The first end of the second inductor is respectively connected to the ANT end of the wireless transceiver chip and the first end of the first capacitor, the second end of the second inductor is respectively connected to the first end of the third inductor, the first end of the second capacitor, and the first end of the third capacitor, the second end of the third inductor is respectively connected to the first end of the fourth capacitor and the first antenna, and the second end of the first capacitor, the second end of the second capacitor, the second end of the third capacitor, and the second end of the fourth capacitor are all grounded.

[0010] In the above scheme, the GPS antenna circuit includes a low noise amplifier chip, a first resistor, a second resistor, a fourth inductor, a fifth inductor, a fifth capacitor, a sixth capacitor, a seventh capacitor, and a GPS antenna. The first end of the second resistor is connected to the 3.3V voltage output terminal, the second end of the second resistor is respectively connected to the SHDN terminal of the low noise amplifier chip and the VDD terminal of the low noise amplifier chip, the first end of the first resistor is connected to the second end of the first inductor, the second end of the first resistor is connected to the RFOUT terminal of the low noise amplifier chip, the RFIN terminal of the low noise amplifier chip is connected in series with the seventh capacitor and the fourth inductor in sequence, and then connected to the first end of the fifth inductor and the first end of the fifth capacitor respectively, the second end of the fifth inductor is respectively connected to the GPS antenna and the first end of the sixth capacitor, and the second end of the fifth capacitor and the second end of the sixth capacitor are both grounded.

[0011] In the above scheme, the LED display circuit includes a third resistor, a fourth resistor, a first light-emitting diode, and a second light-emitting diode. The first end of the third resistor is connected to the P0.09 end of the wireless transceiver chip, the second end of the third resistor is connected to the positive electrode of the first light-emitting diode, the negative electrode of the first light-emitting diode is connected to the negative electrode of the second light-emitting diode and then grounded, the first end of the fourth resistor is connected to the P0.08 end of the wireless transceiver chip, and the second end of the fourth resistor is connected to the positive electrode of the second light-emitting diode.

[0012] In the above scheme, the storage circuit includes a storage chip, an eighth capacitor, and a fifth resistor. The first end of the fifth resistor is respectively connected to the 3.3V voltage output terminal, the first end of the eighth capacitor and the VCC terminal of the storage chip. The second end of the eighth capacitor is connected to the GND terminal of the storage chip and then grounded. The second end of the fifth resistor is connected to the HOLD terminal of the storage chip. The Flash_CS terminal of the storage chip is connected to the P0.19 terminal of the wireless transceiver chip. The Flash_DO terminal of the storage chip is connected to the P0.18 terminal of the wireless transceiver chip. The Flash_CLK terminal of the storage chip is connected to the P0.16 terminal of the wireless transceiver chip. The Flash_DI terminal of the storage chip is connected to the P0.17 terminal of the wireless transceiver chip. The WP terminal of the storage chip is connected to the 3.3V voltage output terminal.

[0013] In the above solution, the key circuit includes a switch, a first end of the switch is connected to the P0.05 end of the wireless transceiver chip, and a second end of the switch is grounded.

[0014] In the above scheme, the tearing alarm circuit includes an eleventh resistor, a twelfth resistor, and an easy-to-tear copper foil paper. The first end of the eleventh resistor is connected to the 3.6V voltage output terminal, the second end of the eleventh resistor is connected to the first end of the easy-to-tear copper foil paper, the second end of the easy-to-tear copper foil paper is connected in series with the twelfth resistor and then grounded, and the first end of the easy-to-tear copper foil paper is connected to the P0.12 terminal of the wireless transceiver chip.

[0015] In the above scheme, the temperature sensor circuit includes a temperature sensor and a thirteenth resistor. The DQ end of the temperature sensor is respectively connected to the first end of the thirteenth resistor and the P0.25 end of the wireless transceiver chip, the second end of the thirteenth resistor is connected to the P0.24 end of the wireless transceiver chip, and the GND end of the temperature sensor is grounded.

[0016] In the above scheme, the acceleration sensor circuit includes an acceleration sensor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, a fifteenth capacitor, and a sixteenth capacitor. The 3.3V voltage output end is connected in series with the fourteenth resistor and is respectively connected to the first end of the fifteenth resistor, the first end of the sixteenth resistor, the first end of the seventeenth resistor, the first end of the fifteenth capacitor, the first end of the sixteenth capacitor and the Vdd_IO end of the acceleration sensor. The second end of the fifteenth resistor is connected to the SCL / SPC end of the acceleration sensor, the second end of the seventeenth resistor is connected to the CS end of the acceleration sensor, the second end of the sixteenth resistor is connected to the SDA / SDI / SDO end of the acceleration sensor, the second end of the fifteenth capacitor and the second end of the sixteenth capacitor are both grounded, the I NT1 end of the acceleration sensor is connected to the P0.13 end of the wireless transceiver chip, and the I The NT2 terminal is connected to the P0.14 terminal of the wireless transceiver chip, the SCL / SP terminal of the acceleration sensor is connected to the P0.20 terminal of the wireless transceiver chip, and the SDA / SD I / SDO terminal of the acceleration sensor is connected to the P0.21 terminal of the wireless transceiver chip.

[0017] In the above scheme, the voltage monitoring circuit includes a nineteenth resistor, a twentieth resistor, and a twenty-third capacitor. The first end of the nineteenth resistor is connected to the second end of the sixth resistor, the second end of the nineteenth resistor is respectively connected to the first end of the twentieth resistor, the first end of the twenty-third capacitor and the P0.15 / AI N0 end of the wireless transceiver chip, and the second end of the twentieth resistor and the second end of the twenty-third capacitor are both grounded.

[0018] Compared with the prior art, the asset tracking circuit for honeycomb paper tags provided by the utility model supports flexible selection and switching of the Internet of Things mobile communication LTE.M network and the low-power long-distance communication NB-I oT network to realize long-distance real-time data transmission; at the same time, it supports GNSS satellite positioning technology to make up for the limited positioning and limitations of the Internet of Things wireless short-distance positioning technology such as Bluetooth and WiFi. In addition, the tag uses easy-to-tear conductive materials to cleverly realize the tearing alarm function, and has the functions of impact monitoring, temperature monitoring, battery voltage monitoring, and data storage. The honeycomb paper tag can be widely used in smart warehousing, logistics pallet management, smart air transportation, and smart shipping scenarios to help Internet of Things users realize real-time tracking and status monitoring of asset locations in the entire logistics supply chain process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to disclose a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 This is a circuit structure block diagram of an asset tracking circuit for a honeycomb paper tag according to an embodiment of the utility model;

[0021] Figure 2 This is a circuit schematic diagram of a wireless transceiver chip in an asset tracking circuit for a honeycomb paper tag according to an embodiment of the utility model;

[0022] Figure 3 A circuit schematic diagram of an LTE antenna circuit in an asset tracking circuit for a honeycomb paper tag according to an embodiment of the utility model;

[0023] Figure 4 This is a circuit schematic diagram of a GPS antenna circuit in an asset tracking circuit for a honeycomb paper tag according to an embodiment of the utility model;

[0024] Figure 5 This is a circuit schematic diagram of an LED display circuit in an asset tracking circuit for a honeycomb paper tag according to an embodiment of the utility model;

[0025] Figure 6 A circuit schematic diagram of a storage circuit in an asset tracking circuit for a honeycomb paper tag according to an embodiment of the utility model;

[0026] Figure 7 A circuit schematic diagram of a DCDC boost circuit and a battery circuit in an asset tracking circuit for a honeycomb paper tag according to an embodiment of the utility model;

[0027] Figure 8 This is a circuit schematic diagram of a key circuit in an asset tracking circuit for a honeycomb paper tag according to an embodiment of the utility model;

[0028] Fig. 9 This is a circuit schematic diagram of a tearing alarm circuit in an asset tracking circuit for a honeycomb paper tag according to an embodiment of the utility model;

[0029] Fig.10 This is a circuit schematic diagram of a temperature sensor circuit in an asset tracking circuit for a honeycomb paper tag according to an embodiment of the utility model;

[0030] Fig.11 A circuit schematic diagram of an acceleration sensor circuit in an asset tracking circuit for a honeycomb paper tag according to an embodiment of the utility model;

[0031] Fig.12 A circuit schematic diagram of a battery voltage monitoring circuit for an asset tracking circuit of a honeycomb paper tag according to an embodiment of the utility model;

[0032] Fig.13The present invention is a software logic flow diagram of an asset tracking circuit for a honeycomb paper tag according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0034] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0035] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, article or device. In the absence of more restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, article or device including the element.

[0036] The present utility model embodiment provides an asset tracking circuit for a honeycomb paper tag, such as Figure 1-Figure 12 As shown, the asset tracking circuit includes a main control circuit, an LED display circuit, a storage circuit, a battery circuit, a DCDC boost circuit, a button circuit, a tearing alarm circuit, a temperature sensor circuit, an acceleration sensor circuit, and a voltage monitoring circuit. The main control circuit is respectively connected to the input end of the LED display circuit, the output end of the storage circuit, the output end of the DCDC boost circuit, the output end of the button circuit, the output end of the tearing alarm circuit, and the output end of the temperature sensor circuit. The main control circuit is communicatively connected to the acceleration sensor circuit, and the output end of the battery circuit is connected to the input end of the DCDC boost circuit. The main control circuit has communication and positioning functions, and is connected to the onboard LTE antenna circuit and the onboard GPS antenna circuit.

[0037] like Figure 2 and Figure 7As shown, the battery circuit includes a battery BT, a sixth resistor R6, a twentieth capacitor C20, a twenty-first capacitor C21, and a twenty-second capacitor C22. The positive electrode of the battery BT is connected to the first end of the sixth resistor R6, and the second end of the sixth resistor R6 is respectively connected to the first end of the twentieth capacitor C20, the first end of the twenty-first capacitor C21, and the first end of the twenty-second capacitor C22. The negative electrode of the battery BT is respectively connected to the second end of the twentieth capacitor C20, the second end of the twenty-first capacitor C21, and the second end of the twenty-second capacitor C22 and then grounded.

[0038] like Figure 2 and Figure 7 As shown, the DCDC boost circuit includes a sixth inductor L6, a boost chip U4, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a ninth capacitor C9, a tenth capacitor C10, a diode D1, a 3.6V voltage output terminal VCC_3V6, and a 3.3V voltage output terminal VCC_3V3. The first end of the sixth inductor L6 is respectively connected to the first end of the twenty-second capacitor C22, the IN end of the boost chip U4, and the first end of the seventh resistor R7. The second end of the sixth inductor is connected to the LX end of the boost chip, and the second end of the seventh resistor R7 is connected to the EN end of the boost chip U4. The OUT end of the boost chip U4 is respectively connected to the first end of the eighth resistor R8, the first end of the ninth capacitor C9, the first end of the tenth capacitor C10 and the first end of the tenth resistor R10, the FB end of the boost chip U4 is respectively connected to the second end of the eighth resistor R8, the first end of the ninth resistor R9 and the second end of the ninth capacitor C9, the second end of the tenth resistor R10 is respectively connected to the 3.6V voltage output terminal VCC_3V6 and the positive electrode of the diode D1, the negative electrode of the diode D1 is connected to the 3.3V voltage output terminal VCC_3V3, and the second end of the ninth resistor R9 and the second end of the tenth capacitor C10 are both grounded.

[0039] like Figure 2As shown, the main control circuit includes a wireless transceiver chip U1, a twelfth capacitor C12, a thirteenth capacitor C13, a fourteenth capacitor C14, a seventeenth capacitor C17, an eighteenth capacitor C18, a nineteenth capacitor C19, a twenty-third capacitor C23, a twenty-fourth capacitor C24, a twenty-fifth capacitor C25, a first inductor L1, and a nineteenth resistor R19. The first end of the twenty-third capacitor C23 is respectively connected to the first end of the twenty-fourth capacitor C24, the first end of the twenty-fifth capacitor C25, the first end of the nineteenth resistor R19, the VDD1 end and the 3.6V voltage output end of the wireless transceiver chip U1, the second end of the twenty-third capacitor C23, the second end of the twenty-fourth capacitor C24, and the second end of the twenty-fifth capacitor C25 are all grounded, the second end of the nineteenth resistor R19 is connected to the ENABLE end of the wireless transceiver chip U1, and the first end of the seventeenth capacitor C17 is respectively connected to the VDD1 end and the 3.6V voltage output end of the wireless transceiver chip U1. The first end of the twelfth capacitor C12 is respectively connected to the first end of the thirteenth capacitor C13, the VDD_GPIO end of the wireless transceiver chip U1 and the 3.3V voltage output end, the second end of the twelfth capacitor C12 and the second end of the thirteenth capacitor C13 are both grounded, the first end of the fourteenth capacitor C14 is connected to the DEC0 end of the wireless transceiver chip U1, the second end of the fourteenth capacitor C14 is grounded, the first end of the nineteenth capacitor C19 is respectively connected to the first end of the first inductor L1 and the GPS end of the wireless transceiver chip U1, the second end of the nineteenth capacitor C19 is grounded, the second end of the first inductor L1 is connected to the first end of the eighteenth capacitor C18, the second end of the eighteenth capacitor C18 is grounded, and the GND_Sh ield ends of the wireless transceiver chip U1 are all grounded.

[0040] like Figure 2 and Figure 3 As shown, the LTE antenna circuit includes a second inductor L2, a third inductor L3, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, and a first antenna ANT1. The first end of the second inductor L2 is respectively connected to the ANT end of the wireless transceiver chip U1 and the first end of the first capacitor C1, the second end of the second inductor L2 is respectively connected to the first end of the third inductor L3, the first end of the second capacitor C2, and the first end of the third capacitor C3, the second end of the third inductor L3 is respectively connected to the first end of the fourth capacitor C4 and the first antenna ANT1, and the second end of the first capacitor C1, the second end of the second capacitor C2, the second end of the third capacitor C3, and the second end of the fourth capacitor C4 are all grounded.

[0041] like Figure 2and Figure 4 As shown, the GPS antenna circuit includes a low noise amplifier chip U2, a first resistor R1, a second resistor R2, a fourth inductor L4, a fifth inductor L5, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, and a GPS antenna ANT_GPS1. The first end of the second resistor R2 is connected to the 3.3V voltage output terminal VCC_3V3, the second end of the second resistor R2 is respectively connected to the SHDN terminal of the low noise amplifier chip U2 and the VDD terminal of the low noise amplifier chip U2, the first end of the first resistor R1 is connected to the second end of the first inductor, the second end of the first resistor R1 is connected to the RFOUT terminal of the low noise amplifier chip U2, the RF IN terminal of the low noise amplifier chip U2 is sequentially connected in series with the seventh capacitor C7 and the fourth inductor L4, and then connected to the first end of the fifth inductor L5 and the first end of the fifth capacitor C5, respectively, the second end of the fifth inductor L5 is respectively connected to the GPS antenna ANT_GPS1 and the first end of the sixth capacitor C6, and the second end of the fifth capacitor C5 and the second end of the sixth capacitor C6 are both grounded.

[0042] like Figure 2 and Figure 5 As shown, the LED display circuit includes a third resistor R3, a fourth resistor R4, a first light-emitting diode LED1, and a second light-emitting diode LED2. The first end of the third resistor R3 is connected to the P0.09 end of the wireless transceiver chip U1, the second end of the third resistor R3 is connected to the positive electrode of the first light-emitting diode LED1, the negative electrode of the first light-emitting diode LED1 is connected to the negative electrode of the second light-emitting diode LED2 and then grounded, the first end of the fourth resistor R4 is connected to the P0.08 end of the wireless transceiver chip U1, and the second end of the fourth resistor R4 is connected to the positive electrode of the second light-emitting diode LED2.

[0043] like Figure 2 and Figure 6As shown, the storage circuit includes a storage chip U3, an eighth capacitor C8, and a fifth resistor R5. The first end of the fifth resistor R5 is respectively connected to the 3.3V voltage output terminal VCC_3V3, the first end of the eighth capacitor C8 and the VCC terminal of the storage chip U3. The second end of the eighth capacitor C8 is connected to the GND terminal of the storage chip U3 and then grounded. The second end of the fifth resistor R5 is connected to the HOLD terminal of the storage chip U3. The F l ash_CS terminal of the storage chip U3 is connected to the P0.19 terminal of the wireless transceiver chip U1. The F l ash_DO terminal of the storage chip U3 is connected to the P0.18 terminal of the wireless transceiver chip U1. The F l ash_CLK terminal of the storage chip U3 is connected to the P0.16 terminal of the wireless transceiver chip U1. The F l ash_DI terminal of the storage chip U3 is connected to the P0.17 terminal of the wireless transceiver chip U1. The WP terminal of the storage chip U3 is connected to the 3.3V voltage output terminal VCC_3V3.

[0044] like Figure 2 and Figure 8 As shown, the key circuit includes a switch SW1, a first end of the switch SW1 is connected to the P0.05 end of the wireless transceiver chip U1, and a second end of the switch SW1 is grounded.

[0045] like Figure 2 and Fig. 9 As shown, the tearing alarm circuit includes an eleventh resistor R11, a twelfth resistor R12, and an easy-tear copper foil 22. The first end of the eleventh resistor R11 is connected to the 3.6V voltage output terminal VCC_3V6, the second end of the eleventh resistor R11 is connected to the first end of the easy-tear copper foil 22, the second end of the easy-tear copper foil 22 is connected in series with the twelfth resistor R12 and then grounded, and the first end of the easy-tear copper foil 22 is connected to the P0.12 terminal of the wireless transceiver chip U1.

[0046] like Figure 2 and Fig.10 As shown, the temperature sensor circuit includes a temperature sensor U6 and a thirteenth resistor R13. The DQ end of the temperature sensor U6 is respectively connected to the first end of the thirteenth resistor R13 and the P0.25 end of the wireless transceiver chip U1. The second end of the thirteenth resistor R13 is connected to the P0.24 end of the wireless transceiver chip U1. The GND end of the temperature sensor U6 is grounded.

[0047] like Figure 2 and Fig.11As shown, the acceleration sensor circuit includes an acceleration sensor U5, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a seventeenth resistor R17, a fifteenth capacitor C15, and a sixteenth capacitor C16. The 3.3V voltage output terminal VCC_3V3 is connected in series with the fourteenth resistor R14 and is respectively connected to the first end of the fifteenth resistor R15, the first end of the sixteenth resistor R16, the first end of the seventeenth resistor R17, the first end of the fifteenth capacitor C15, the first end of the sixteenth capacitor C16 and the Vdd_IO terminal of the acceleration sensor U5. The second end of the fifteenth resistor R15 is connected to the SCL / SPC terminal of the acceleration sensor U5, the second end of the seventeenth resistor R17 is connected to the CS terminal of the acceleration sensor U5, and the second end of the sixteenth resistor R16 is connected to the SDA / SD The first terminal of the acceleration sensor U5 is connected to the I / SDO terminal, the second terminal of the fifteenth capacitor C15 and the second terminal of the sixteenth capacitor C16 are both grounded, the I NT1 terminal of the acceleration sensor U5 is connected to the P0.13 terminal of the wireless transceiver chip U1, the I NT2 terminal of the acceleration sensor U5 is connected to the P0.14 terminal of the wireless transceiver chip U1, the SCL / SPC terminal of the acceleration sensor U5 is connected to the P0.20 terminal of the wireless transceiver chip U1, and the SDA / SDI / SDO terminal of the acceleration sensor U5 is connected to the P0.21 terminal of the wireless transceiver chip U1.

[0048] like Figure 2 and Fig.12 As shown, the voltage monitoring circuit includes a nineteenth resistor R19, a twentieth resistor R20, and a twenty-third capacitor C23, the first end of the nineteenth resistor R19 is connected to the second end of the sixth resistor, the second end of the nineteenth resistor R19 is respectively connected to the first end of the twentieth resistor R20, the first end of the twenty-third capacitor C23 and the P0.15 / AI N0 end of the wireless transceiver chip U1, and the second end of the twentieth resistor R20 and the second end of the twenty-third capacitor C23 are both grounded.

[0049] In summary, if Figure 1-13As shown in the figure, the overall product design is thin and light, and the material label paper design has high concealed deployment and wide application scenarios; it supports GNSS network positioning and flexible switching of LTE-M / NB-I oT communication networks. Integrated acceleration monitoring and alarm prompts are set to detect whether the cellular tracker and items have been dropped or collided during transportation and movement, as well as the magnitude of external forces during the collision. Integrated temperature detection can understand the ambient temperature of the cellular tracking tag in real time, and better know the ambient temperature of the product. Built-in data storage unit can record tens of thousands of data. Built-in tear alarm circuit, easy to use and simple to operate. Integrated voltage monitoring can monitor the product battery voltage in real time. The shell production process uses environmentally friendly paper materials, which not only supports flexible and changeable design, but also has a shorter development cycle and lower cost.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. An asset tracking circuit for a honeycomb paper tag, characterized in that: The asset tracking circuit includes a main control circuit, an LED display circuit, a storage circuit, a battery circuit, a DCDC boost circuit, a button circuit, a tearing alarm circuit, a temperature sensor circuit, an acceleration sensor circuit, and a voltage monitoring circuit. The main control circuit is respectively connected to the input end of the LED display circuit, the output end of the DCDC boost circuit, the output end of the button circuit, and the output end of the tearing alarm circuit. The main control circuit is communicatively connected to the acceleration sensor circuit, the storage circuit, and the temperature sensor circuit. The output end of the battery circuit is connected to the input end of the DCDC boost circuit. The main control circuit has communication and positioning functions, and is connected to the onboard LTE antenna circuit and the onboard GPS antenna circuit.

2. The asset tracking circuit for honeycomb paper tags according to claim 1, characterized in that: The battery circuit includes a battery, a sixth resistor, a twentieth capacitor, a twenty-first capacitor, and a twenty-second capacitor, wherein the positive electrode of the battery is connected to the first end of the sixth resistor, the second end of the sixth resistor is respectively connected to the first end of the twentieth capacitor, the first end of the twenty-first capacitor, and the first end of the twenty-second capacitor, and the negative electrode of the battery is respectively connected to the second end of the twentieth capacitor, the second end of the twenty-first capacitor, and the second end of the twenty-second capacitor and then grounded; The DCDC boost circuit includes a sixth inductor, a boost chip, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a ninth capacitor, a tenth capacitor, a diode, a 3.6V voltage output terminal, and a 3.3V voltage output terminal. The first end of the sixth inductor is respectively connected to the first end of the twenty-second capacitor, the IN terminal of the boost chip, and the first end of the seventh resistor. The second end of the sixth inductor is connected to the LX terminal of the boost chip. The second end of the seventh resistor is connected to the EN terminal of the boost chip. The OUT terminal of the boost chip is respectively connected to the first end of the eighth resistor, the first end of the ninth capacitor, the first end of the tenth capacitor, and the first end of the tenth resistor. The FB terminal of the boost chip is respectively connected to the second end of the eighth resistor, the first end of the ninth resistor, and the second end of the ninth capacitor. The second end of the tenth resistor is respectively connected to the 3.6V voltage output terminal and the positive electrode of the diode, the negative electrode of the diode is connected to the 3.3V voltage output terminal, and the second end of the ninth resistor and the second end of the tenth capacitor are both grounded.

3. The asset tracking circuit for honeycomb paper tags according to claim 2, characterized in that: The main control circuit includes a wireless transceiver chip, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor, a seventeenth capacitor, an eighteenth capacitor, a nineteenth capacitor, a twenty-third capacitor, a twenty-fourth capacitor, a twenty-fifth capacitor, a first inductor, and a nineteenth resistor. The first end of the twenty-third capacitor is respectively connected to the first end of the twenty-fourth capacitor, the first end of the twenty-fifth capacitor, the first end of the nineteenth resistor, the VDD1 end of the wireless transceiver chip and the 3.6V voltage output end. The second end of the twenty-third capacitor, the second end of the twenty-fourth capacitor, and the second end of the twenty-fifth capacitor are all grounded. The second end of the nineteenth resistor is connected to the ENABLE end of the wireless transceiver chip. The first end of the seventeenth capacitor is respectively connected to the 3.6V voltage output end and the wireless transceiver. The first end of the twelfth capacitor is connected to the first end of the thirteenth capacitor, the VDD_GPIO end and the 3.3V voltage output end of the wireless transceiver chip, the second end of the twelfth capacitor and the second end of the thirteenth capacitor are both grounded, the first end of the fourteenth capacitor is connected to the DEC0 end of the wireless transceiver chip, the second end of the fourteenth capacitor is grounded, the first end of the nineteenth capacitor is respectively connected to the first end of the first inductor and the GPS end of the wireless transceiver chip, the second end of the nineteenth capacitor is grounded, the second end of the first inductor is connected to the first end of the eighteenth capacitor, the second end of the eighteenth capacitor is grounded, and the GND_Shield ends of the wireless transceiver chip are all grounded.

4. The asset tracking circuit for honeycomb paper tags according to claim 3, characterized in that: The LTE antenna circuit includes a second inductor, a third inductor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, and a first antenna, wherein the first end of the second inductor is respectively connected to the ANT end of the wireless transceiver chip and the first end of the first capacitor, the second end of the second inductor is respectively connected to the first end of the third inductor, the first end of the second capacitor, and the first end of the third capacitor, the second end of the third inductor is respectively connected to the first end of the fourth capacitor and the first antenna, and the second end of the first capacitor, the second end of the second capacitor, the second end of the third capacitor, and the second end of the fourth capacitor are all grounded; The GPS antenna circuit includes a low noise amplifier chip, a first resistor, a second resistor, a fourth inductor, a fifth inductor, a fifth capacitor, a sixth capacitor, a seventh capacitor, and a GPS antenna. The first end of the second resistor is connected to the 3.3V voltage output end, the second end of the second resistor is respectively connected to the SHDN end of the low noise amplifier chip and the VDD end of the low noise amplifier chip, the first end of the first resistor is connected to the second end of the first inductor, the second end of the first resistor is connected to the RFOUT end of the low noise amplifier chip, the RF IN end of the low noise amplifier chip is sequentially connected in series with the seventh capacitor and the fourth inductor, and is respectively connected to the first end of the fifth inductor and the first end of the fifth capacitor, the second end of the fifth inductor is respectively connected to the GPS antenna and the first end of the sixth capacitor, and the second end of the fifth capacitor and the second end of the sixth capacitor are both grounded.

5. The asset tracking circuit for honeycomb paper tags according to claim 4, characterized in that: The LED display circuit includes a third resistor, a fourth resistor, a first light-emitting diode, and a second light-emitting diode. The first end of the third resistor is connected to the P0.09 end of the wireless transceiver chip, the second end of the third resistor is connected to the positive electrode of the first light-emitting diode, the negative electrode of the first light-emitting diode is connected to the negative electrode of the second light-emitting diode and then grounded, the first end of the fourth resistor is connected to the P0.08 end of the wireless transceiver chip, and the second end of the fourth resistor is connected to the positive electrode of the second light-emitting diode.

6. The asset tracking circuit for honeycomb paper tags according to claim 5, characterized in that: The storage circuit includes a storage chip, an eighth capacitor, and a fifth resistor, wherein the first end of the fifth resistor is respectively connected to the 3.3V voltage output terminal, the first end of the eighth capacitor, and the VCC terminal of the storage chip, the second end of the eighth capacitor is connected to the GND terminal of the storage chip and then grounded, the second end of the fifth resistor is connected to the HOLD terminal of the storage chip, the Flash_CS terminal of the storage chip is connected to the P0.19 terminal of the wireless transceiver chip, the Flash_DO terminal of the storage chip is connected to the P0.18 terminal of the wireless transceiver chip, the Flash_CLK terminal of the storage chip is connected to the P0.16 terminal of the wireless transceiver chip, the Flash_DI terminal of the storage chip is connected to the P0.17 terminal of the wireless transceiver chip, and the WP terminal of the storage chip is connected to the 3.3V voltage output terminal; The key circuit includes a switch, a first end of the switch is connected to the P0.05 end of the wireless transceiver chip, and a second end of the switch is grounded.

7. The asset tracking circuit for honeycomb paper tags according to claim 6, characterized in that: The tearing alarm circuit includes an eleventh resistor, a twelfth resistor, and an easy-tear copper foil paper. The first end of the eleventh resistor is connected to the 3.6V voltage output end, the second end of the eleventh resistor is connected to the first end of the easy-tear copper foil paper, the second end of the easy-tear copper foil paper is connected in series with the twelfth resistor and then grounded, and the first end of the easy-tear copper foil paper is connected to the P0.12 end of the wireless transceiver chip.

8. The asset tracking circuit for honeycomb paper tags according to claim 7, characterized in that: The temperature sensor circuit includes a temperature sensor and a thirteenth resistor. The DQ end of the temperature sensor is respectively connected to the first end of the thirteenth resistor and the P0.25 end of the wireless transceiver chip, the second end of the thirteenth resistor is connected to the P0.24 end of the wireless transceiver chip, and the GND end of the temperature sensor is grounded.

9. The asset tracking circuit for honeycomb paper tags according to claim 8, characterized in that: The acceleration sensor circuit includes an acceleration sensor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, a fifteenth capacitor, and a sixteenth capacitor. The 3.3V voltage output end is connected in series with the fourteenth resistor and is respectively connected to the first end of the fifteenth resistor, the first end of the sixteenth resistor, the first end of the seventeenth resistor, the first end of the fifteenth capacitor, the first end of the sixteenth capacitor, and the Vdd_IO end of the acceleration sensor. The second end of the fifteenth resistor is connected to the SCL / SPC end of the acceleration sensor, the second end of the seventeenth resistor is connected to the CS end of the acceleration sensor, and the second end of the sixteenth resistor is connected to the SDA / SD The first terminal of the acceleration sensor is connected to the I / SDO terminal, the second end of the fifteenth capacitor C15 and the second end of the sixteenth capacitor C16 are both grounded, the INT1 terminal of the acceleration sensor is connected to the P0.13 terminal of the wireless transceiver chip, the INT2 terminal of the acceleration sensor is connected to the P0.14 terminal of the wireless transceiver chip, the SCL / SP terminal of the acceleration sensor is connected to the P0.20 terminal of the wireless transceiver chip, and the SDA / SDI / SDO terminal of the acceleration sensor is connected to the P0.21 terminal of the wireless transceiver chip.

10. The asset tracking circuit for honeycomb paper tags according to claim 9, characterized in that: The voltage monitoring circuit includes a nineteenth resistor, a twentieth resistor, and a twenty-third capacitor. The first end of the nineteenth resistor is connected to the second end of the sixth resistor, the second end of the nineteenth resistor is respectively connected to the first end of the twentieth resistor, the first end of the twenty-third capacitor, and the P0.15 / AIN0 end of the wireless transceiver chip, and the second end of the twentieth resistor and the second end of the twenty-third capacitor are both grounded.

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