Logistics lock capable of achieving ultra-long standby function
By adopting lithium sub-battery packs and low-power design in logistics locks, the problem of poor self-discharge performance of traditional logistics lock batteries is solved, and the ultra-long standby function is realized, reducing maintenance costs and cargo safety risks.
Patent Information
- Application Number
- CN202510069814.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-02-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Due to the poor self-discharge performance of lithium batteries, existing logistics locks cannot support long-term standby, resulting in frequent charging, which increases maintenance costs and cargo safety risks.
Lithium sub-battery packs, including energy-type lithium sub-batteries and battery capacitors, combined with MCU modules, 4G communication modules, BDS/GPS modules, Bluetooth modules, RFID modules and motor control modules, design low-power modes and ultra-low power states , ensure that the logistics lock enters dormant state when it is not needed, and reduces battery consumption.
It realizes the ultra-long standby function of logistics locks, and can work continuously for about 10 years without charging, greatly reducing maintenance costs and cargo safety risks, and reducing business losses.
Smart Images

Figure CN119516655A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of embedded systems, and in particular to a logistics lock capable of realizing an ultra-long standby function. Background Art
[0002] Logistics locks are usually electronic or mechanical locks, and their purpose is to ensure the safety, integrity and traceability of goods in logistics links such as transportation and warehousing. It can be installed in containers, carriage doors, warehouse doors and other locations, and prevent unauthorized opening through a specific locking mechanism. Whether it is an electronic logistics lock or a mechanical logistics lock, there will be corresponding records during use (such as unlocking time, operator, etc.), which provide a strong basis for the supervision of goods. Once a problem occurs, such as loss or damage of goods, these records can be traced back to find the cause and determine the responsible party.
[0003] In the prior art, traditional logistics locks have built-in rechargeable polymer lithium batteries. The equipment does not need to be connected to an external power source and can work continuously relying only on the built-in battery. Due to the poor self-discharge performance of the rechargeable battery, this type of equipment cannot support ultra-long standby time. Depending on the configuration of batteries with different capacities and different working modes, it can work continuously for several days or even a month. It needs to be charged regularly for continuous use. When used in batches, a specialist needs to be arranged to manage the charging. However, logistics vehicles are distributed all over the country, which brings great difficulties to charging management and very high maintenance costs. If the battery is not charged in time after it is out of power, the logistics lock cannot function, and the goods will face the risk of theft during transportation, which directly threatens the safety of the goods and causes great losses to the logistics business. Therefore, the present application provides a logistics lock that can achieve an ultra-long standby function to meet the needs. Summary of the invention
[0004] The technical problem to be solved by the present invention is to provide a logistics lock that can realize an ultra-long standby function to solve the existing traditional logistics locks. The product has a built-in rechargeable polymer lithium battery. The device does not need to be connected to an external power source and can continue to work only by relying on the built-in battery. This type of equipment cannot support ultra-long standby due to the poor self-discharge performance of the rechargeable battery. According to the configuration of batteries with different capacities and different working modes, it can continue to work for several days or even a month. It needs to be charged regularly for continuous use. When used in batches, a specialist needs to be arranged to manage the charging. The logistics vehicles are distributed all over the country, which brings great difficulties to the charging management and the maintenance cost is very high. If the battery is not charged in time after it is out of power, the logistics lock will not work, and the goods will face the risk of theft during transportation, which directly threatens the safety of the goods and brings great losses to the logistics business.
[0005] To solve the above technical problems, the present invention provides the following technical solutions: a logistics lock capable of realizing an ultra-long standby function, comprising: a logistics lock body; a lithium-ion battery pack located in the logistics lock body and used to power components in the logistics lock body; the lithium-ion battery pack comprises a plurality of groups of lithium-ion batteries and battery capacitors, and the plurality of groups of lithium-ion batteries all adopt energy-type lithium-ion batteries; an MCU module located in the logistics lock body and configured to serve as a main control chip in the logistics lock body so as to control the logistics lock body to perform information processing; a power supply system located in the logistics lock body and connected to the MCU module through electrical signals, and used to start or shut down components in the logistics lock body; the power supply system comprises a first LDO power supply, a plurality of groups of second LDO power supplies and a DC-DC power supply.
[0006] Preferably, it also includes: a 4G communication module, which is located in the logistics lock body and connected to the MCU module through electrical signals, and is used for the logistics lock body to realize long-distance cellular communication, and is configured to turn on the power of the 4G communication module after the MCU module is started, and send AT instructions to the 4G communication module through UART to configure APN and server address parameters, and control the 4G communication module to connect to the designated server. After the MCU completes various data collection, it reports the data to the server through the 4G communication module to receive and process the instructions issued by the server; a BDS / GPS module, which is located in the logistics lock body and connected to the MCU module through electrical signals, and is used for the logistics lock body to realize the positioning function; the BDS / GPS module is connected to the AGPS server through electrical signals, and is configured to inject AGPS data into the positioning module, and then perform the data connection function.
[0007] Preferably, it also includes: a Bluetooth module, which is located in the logistics lock body and is connected to the MCU module through electrical signals. It is configured to send the required instructions to the Bluetooth module when the mobile phone APP is connected to the device via Bluetooth. The Bluetooth module will first generate a pulse through the BLE_INT pin to wake up the MCU module, and then interact with the MCU module through UART, and transparently transmit the received Bluetooth instructions to the MCU module for parameter configuration and switch lock control.
[0008] Preferably, it also includes: an RFID module, which is located in the logistics lock body and is connected to the MCU module through electrical signals, for realizing reading IC information, and is set to turn on the power of the RFID module after the MCU module is started, and immediately configure the parameters through I2C and control the RFID module to enter the low power mode. After detecting the IC card, the MCU module is awakened through the RFID_INT pin. The MCU module controls the RFID module to exit the low power mode through I2C and read the IC card information, confirms whether to perform the switch lock operation through identity information matching, and then controls the RFID module to enter the low power mode again.
[0009] Preferably, it also includes: a motor control module, which is located in the logistics lock body and is connected to the MCU module through electrical signals, for realizing the switch lock operation, and is configured to receive the signal sent by the platform through the Bluetooth module and the RFID module. After the operation is successful, the buzzer beeps once and a voice prompt is given. If the operation fails, the buzzer prompts three times and a voice prompt is given, and then the operation result is reported to the platform, and the Bluetooth module will finally reply to the operation result through the Bluetooth module.
[0010] Preferably, the lithium-ion battery is a cylindrical metal shell battery, the battery model is ER18505, the voltage is 3.6V, and the temperature range of the battery can reach -40 degrees to 85 degrees.
[0011] Preferably, the first LDO power supply is used to power the MCU module, and is configured to reduce the 3.6V voltage of the battery to 3.3V, and has an ultra-low quiescent current of 2μA; multiple groups of second LDO power supplies are respectively used to power the BDS / GPS module, Bluetooth module, RFID module and motor control module, and are configured to have ultra-low leakage current; the DC-DC power supply is used to power the 4G communication module, and is configured to increase the 3.6V voltage of the battery to 4V.
[0012] Preferably, it also includes: an RTC crystal oscillator, which is connected to the MCU module through an electrical signal and is used to provide a clock for the RTC inside the MCU.
[0013] Compared with the prior art, the present invention has at least the following beneficial effects: in the above scheme, by setting up a lithium-ion battery pack and using disposable large-capacity batteries, no charging is required, which can ensure that the equipment can work for about 10 years, solve the maintenance and use problems of repeated charging, and greatly reduce maintenance costs, cargo safety risks, and business losses. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings, which constitute part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and enable those skilled in the relevant art to make and use the present disclosure.
[0015] Figure 1 It is a schematic diagram of the system hardware control structure in the present invention; Figure 2 A circuit diagram of the MCU module control structure in the present invention; Figure 3 It is a schematic diagram of the control structure of the MCU module and the Bluetooth module in the present invention; Figure 4 A circuit diagram of the control structure of the MCU module and the Bluetooth module in the present invention; Figure 5 It is a schematic diagram of the control structure of the MCU module and the RFID module in the present invention; Figure 6 A circuit diagram of the control structure of the MCU module and the RFID module in the present invention; Figure 7 It is a schematic diagram of the control structure of the MCU module and the 4G communication module in the present invention; Figure 8 It is a circuit diagram of the control structure of the MCU module and the 4G communication module in the present invention; Fig. 9 It is a schematic diagram of the control structure of the MCU module and the BDS module in the present invention; Fig.10 It is a circuit diagram of the control structure of the MCU module and the BDS module in the present invention; Fig.11 A schematic diagram of unlocking the hardware control structure of the MCU module and the motor control module in the present invention; Fig.12 A schematic diagram of the hardware control structure of the MCU module and the motor control module in the present invention; Fig.13 The circuit of the MCU module control structure in the present invention Figure 2 ; Fig.14 A circuit diagram of the hardware control structure of the MCU module and the motor control module in the present invention; Fig.15 Circuit of the MCU module and RFID module control structure in the present invention Figure 2 .
[0016] [Reference Signs] 1. Lithium-ion battery pack; 2. MCU module; 3. Power system; 4. 4G communication module; 5. BDS / GPS module; 6. Bluetooth module; 7. RFID module; 8. Motor control module; 9. RTC crystal oscillator.
[0017] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION
[0018] The following is a detailed description of a logistics lock that can realize the ultra-long standby function provided by the present invention in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.
[0019] Embodiment 1: Figure 1 , Figure 2 as well as Fig.13 As shown, an embodiment of the present invention provides a logistics lock that can realize an ultra-long standby function, including: a logistics lock body; a lithium-ion battery pack 1, located in the logistics lock body, used to power components in the logistics lock body; the lithium-ion battery pack 1 includes several groups of lithium-ion batteries and battery capacitors, and the several groups of lithium-ion batteries all use energy-type lithium-ion batteries; an MCU module 2, located in the logistics lock body, and is configured to be a main control chip in the logistics lock body to control the logistics lock body to process information; a power system 3, located in the logistics lock body, and connected to the MCU module 2 through electrical signals, used to start or shut down components in the logistics lock body; the power system 3 includes a first LDO power supply, multiple groups of second LDO power supplies and a DC-DC power supply.
[0020] It should be noted that lithium-ion batteries have two different technical specifications, energy type and power type. Among them, energy type batteries have large capacity per unit volume, but low discharge power; power type batteries have low capacity per unit volume, but large discharge power. At the same time, in terms of safety, energy batteries have better chemical stability due to their low discharge power, and are much safer than power type batteries. In this solution, the 4G communication part requires a high instantaneous discharge power when working, so the energy type battery alone cannot support the module operation. However, since the power type battery cannot meet the requirements in terms of safety, and the effective battery capacity of the power type battery is also very low, the power type battery cannot be selected. Specifically: In this solution, lithium-ion battery pack 1 uses energy type batteries and battery capacitors to form a battery pack. The battery capacitor model is SPC1550, which also has a temperature adaptation range of -40 degrees to 85 degrees, can meet the instantaneous high current discharge, and the discharge current is much larger than that of the power type lithium-ion battery. At the same time, the capacitor has no safety issues at all. The battery pack solution can perfectly solve the problem that this solution requires both large-capacity batteries and the ability to output high-power current, while also ensuring safety. The battery pack used in this solution is 4 ER18505 + 1 SPC1550, with a total capacity of 20000mAH.
[0021] In addition, the main control MCU is a processor with the core of ARM Cortex M0+. The MCU has the following features: wide voltage supply 2.1V~3.3V; multi-level low power mode; built-in RTC; μA-level ultra-low power mode. U2 is the LDO that powers the MCU, which reduces the 3.6V voltage of the battery to 3.3V. As long as the system is powered on, the LDO will always be in working state, so the LDO must have ultra-low quiescent current. The model used in the solution has a quiescent current of 2μA and ultra-low quiescent power consumption. Y2 is the RTC crystal oscillator 9, model 32.768kHz, which is used to provide the clock for the RTC inside the MCU. Relying on this low-frequency clock, the MCU can achieve ultra-low power consumption of less than 5μA when only the RTC is working in ultra-low power mode.
[0022] like Figures 7 to 10 As shown, it also includes: a 4G communication module 4, which is located in the logistics lock body and is connected to the MCU module 2 through electrical signals, and is used for the logistics lock body to realize long-distance cellular communication, and is set to turn on the power of the 4G communication module 4 after the MCU module 2 is started, and send AT instructions to the 4G communication module 4 through UART to configure the APN and server address parameters, and control the 4G communication module 4 to connect to the designated server. After the MCU completes various data collection, it reports the data to the server through the 4G communication module 4, and receives and processes the instructions issued by the server; a BDS / GPS module 5, which is located in the logistics lock body and is connected to the MCU module 2 through electrical signals, and is used for the logistics lock body to realize the positioning function; the BDS / GPS module 5 is connected to the AGPS server through electrical signals, and is set to inject the AGPS data into the positioning module, and then perform the data connection function.
[0023] It should be noted that the core part of the design of this solution is the design of power consumption. The wake-up working frequency of the whole machine is controlled by RTC, and the working mode of waking up once or multiple times a day is maintained. Each time the device wakes up, the total working time is controlled within 3 minutes, and positioning and cellular communication must be completed within 3 minutes. In order to speed up the positioning speed of the BDS module, the AGPS function is designed in the system. When the 4G communication module 4 wakes up each time, it first turns on the AGPS function, connects to the AGPS server, and then injects the AGPS data into the positioning module at the fastest speed, and then performs the data connection function. Due to the support of the AGPS function, the positioning speed can be increased to within 20S at the fastest. If the satellite signal is very good, the device can complete a data transmission in about 40S at the fastest, which can greatly reduce the working power consumption each time the device wakes up. If there is an abnormality in the 4G communication and positioning signal and the normal data connection cannot be completed, the MCU will save the data after 3 minutes and enter the sleep state directly. In the sleep state, the working power consumption of the entire system is less than 7μA, which can ensure that the battery can be used continuously for many years.
[0024] like Figure 3 to Figure 4 As shown, it also includes: a Bluetooth module 6, which is located in the logistics lock body and is connected to the MCU module 2 through electrical signals. It is configured that when the mobile phone APP connects to the device via Bluetooth, the required instructions can be sent to the Bluetooth module 6. The Bluetooth module 6 will first generate a pulse through the BLE_INT pin to wake up the MCU module 2, and then interact with the MCU module 2 through the UART, and transparently transmit the received Bluetooth instructions to the MCU module 2 for parameter configuration and switch lock control.
[0025] It should be noted that U12 is a Bluetooth chip, U13 is norfalsh, and U11 is an LDO that powers the Bluetooth chip and norflash. The LDO does not require ultra-low quiescent current, but needs to have ultra-low leakage current and must be able to be completely shut down. The LDO leakage current in this solution is basically 0. After the mobile phone APP connects to the device via Bluetooth, it can send the required instructions to the Bluetooth module 6. The Bluetooth module 6 will first generate a pulse through the BLE_INT pin to wake up the MCU, and then interact with the MCU through UART, and pass the received Bluetooth instructions to the MCU for parameter configuration and switch lock control. At the same time, the MCU will feed back the configuration results to the Bluetooth module 6, and the Bluetooth module 6 will notify the mobile phone of the results. When the whole machine enters sleep mode, the Bluetooth module 6 can be configured whether to cut off the power. If it does not cut off the power, it will also enter the ultra-low power consumption mode.
[0026] like Figure 5 , Figure 6 as well as Fig.15As shown, it also includes: an RFID module 7, which is located in the logistics lock body and is connected to the MCU module 2 through an electrical signal, for realizing reading IC information, and is set to turn on the power of the RFID module 7 after the MCU module 2 is started, and immediately configure the parameters through I2C and control the RFID module 7 to enter the low power mode. After detecting the IC card, the MCU module 2 is awakened through the RFID_INT pin. The MCU module 2 controls the RFID module 7 to exit the low power mode through I2C and read the IC card information. It confirms whether to perform the switch lock operation through identity information matching, and then controls the RFID module 7 to enter the low power mode again.
[0027] It should be noted that U21 is the RFID module 7, and U9 is the LDO that powers the RFID module 7. The LDO does not require ultra-low quiescent current, but needs to have ultra-low leakage current and must be able to be completely shut down. The LDO leakage current in this solution is basically 0; after the MCU is started, the power supply of the RFID module 7 is turned on, and the parameters are immediately configured through I2C and the RFID module 7 is controlled to enter the low power mode; the RFID module 7 checks the card regularly, and after detecting the IC card, it wakes up the MCU through the RFID_INT pin. The MCU controls the RFID to exit the low power mode through I2C and reads the IC card information, and confirms whether to perform the switch lock operation through identity information matching, and then controls the RFID to enter the low power mode again; when the whole machine enters sleep mode, the RFID module 7 can be configured whether to power off. If the power is not cut off, it will also enter the ultra-low power mode.
[0028] Embodiment 2: Fig.11 , Fig.12 as well as Fig.14 As shown, it also includes: a motor control module 8, which is located in the logistics lock body and is connected to the MCU module 2 through an electrical signal, for realizing the switch lock operation, and is configured to receive the signal sent by the platform through the Bluetooth module 6 and the RFID module 7. After the operation is successful, the buzzer beeps once and a voice prompt is given. If the operation fails, the buzzer prompts three times and a voice prompt is given, and then the operation result is reported to the platform, wherein the Bluetooth module 6 will finally reply to the operation result through the Bluetooth module 6.
[0029] It should be noted that U20 is a 4G communication module 4, which is used for long-distance cellular communication; U1 is a DC-DC power supply IC that powers the 4G communication module 4. The power supply IC raises the battery voltage from 3.6V to 4V to power the 4G communication module 4. The power supply IC uses a boost DC-DC to improve conversion efficiency and reduce losses during operation. The MCU can control the operation and shutdown of the DC-DC to control the working mode of the 4G communication module 4. During the operation of 4G, except for network connection and data transmission, as long as it is in a static state, the MCU will control 4G to enter a low-power mode to reduce power loss. When the whole machine enters the sleep state, the MCU will directly turn off the DC-DC, and 4G will be completely powered off with no power consumption. At this time, the leakage current of the DC-DC is less than 1μA.
[0030] The lithium-ion battery is a cylindrical metal shell battery. The battery model is ER18505, the voltage is 3.6V, and the battery temperature range can reach -40 degrees to 85 degrees.
[0031] The first LDO power supply is used to power the MCU module 2, and is configured to reduce the 3.6V voltage of the battery to 3.3V, and has an ultra-low quiescent current of 2μA; multiple groups of second LDO power supplies are used to power the BDS / GPS module 5, the Bluetooth module 6, the RFID module 7 and the motor control module 8, and are configured to have an ultra-low leakage current; the DC-DC power supply is used to power the 4G communication module 4, and is configured to increase the 3.6V voltage of the battery to 4V.
[0032] like Figure 1 As shown, it also includes: an RTC crystal oscillator 9, which is connected to the MCU module 2 through an electrical signal and is used to provide a clock for the RTC inside the MCU.
[0033] It should be noted that all modules in this solution can be configured to cut off the power when the whole machine enters sleep mode. If the power is not cut off, it will enter the ultra-low power consumption mode, thereby realizing the low power consumption design of each module. At the same time, the whole system is designed with working mode and low power consumption scheme to achieve ultra-long standby time, and the sleep power consumption of the whole machine reaches μA level.
[0034] The main English aliases mentioned in the above scheme have the following meanings: MCU stands for Microcontroller Unit, also known as a single-chip microcomputer. MCU is a chip-level computer that integrates a central processing unit (CPU), memory (RAM and ROM), counters, timers, and multiple input and output interfaces on a single chip; LDO is the abbreviation of "Low Dropout Regulator", and its Chinese name is a low-dropout linear regulator. It connects a power transistor (usually a MOSFET or a bipolar transistor) in series between the input voltage and the output voltage, and uses a negative feedback mechanism to control the conduction degree of the transistor, thereby achieving stable regulation of the output voltage; DC-DC power supply is a power conversion device that can convert a direct current (DC) input voltage into another direct current output voltage; UART stands for Universal Asynchronous Receiver / Transmitter, which is an asynchronous communication protocol used to send and receive data in serial communication. In UART communication, data is transmitted bit by bit in units of bits; RTC crystal oscillator stands for Real-Time Clock (RTC). Clock) crystal oscillator is an electronic component that provides a stable frequency signal for a real-time clock circuit; in the above scheme, the operations of APN, server, UART and BLE_INT pin are all existing technologies, which are controlled by the existing system and are well known in the art. Practitioners in this industry are familiar with them and will not be repeated here.
[0035] The technical solution provided by the present invention is to place a logistics lock body equipped with a lithium-ion battery pack 1 on a logistics vehicle. When the logistics vehicle delivers goods throughout the country, it is controlled by the MCU module 2 in the logistics lock body, and the logistics lock body is positioned by using the BDS / GPS module 5, and then the information is transmitted to the platform server through the 4G communication module 4, so that the location information and status information are reported once a day. The rest of the time is in low power consumption mode. The user can set the parameters of the logistics lock through the Bluetooth module 6 on the mobile phone APP; when the logistics lock needs to be opened, the user sends a command through the mobile phone APP, or directly swipes the ID card, or directly sends a command from the platform, so as to control the switch lock of the logistics lock body.
[0036] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.
[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A logistics lock capable of realizing an ultra-long standby function, characterized in that: include: Logistics lock body; A lithium-ion battery pack (1) is located in the logistics lock body and is used to supply power to components in the logistics lock body; the lithium-ion battery pack (1) comprises a plurality of groups of lithium-ion batteries and battery capacitors, and the plurality of groups of lithium-ion batteries are all energy-type lithium-ion batteries; The MCU module (2) is located in the logistics lock body and is configured to serve as a main control chip in the logistics lock body so as to control the logistics lock body to perform information processing; The power supply system (3) is located in the logistics lock body and is connected to the MCU module (2) via an electrical signal, and is used to start or shut down components in the logistics lock body; the power supply system (3) comprises a first LDO power supply, a plurality of second LDO power supplies and a DC-DC power supply.
2. The logistics lock capable of realizing an ultra-long standby function according to claim 1, characterized in that: Also includes: The 4G communication module (4) is located in the logistics lock body and is connected to the MCU module (2) through an electrical signal, and is used for the logistics lock body to realize long-distance cellular communication, and is configured to turn on the power of the 4G communication module (4) after the MCU module (2) is started, and to send an AT command to the 4G communication module (4) through UART to configure the APN and server address parameters, and to control the 4G communication module (4) to connect to a designated server. After the MCU completes the collection of various data, the 4G communication module (4) reports the data to the server, and receives and processes the instructions sent by the server; The BDS / GPS module (5) is located in the logistics lock body and is connected to the MCU module (2) via electrical signals, and is used for the logistics lock body to realize the positioning function; the BDS / GPS module (5) is connected to the AGPS server via electrical signals, and is configured to inject AGPS data into the positioning module, and then perform the data connection function.
3. The logistics lock capable of realizing an ultra-long standby function according to claim 2 is characterized in that: Also includes: The Bluetooth module (6) is located in the logistics lock body and is connected to the MCU module (2) through an electrical signal. It is configured so that when the mobile phone APP is connected to the device via Bluetooth, the required instructions can be sent to the Bluetooth module (6). The Bluetooth module (6) first generates a pulse through the BLE_INT pin to wake up the MCU module (2), and then interacts with the MCU module (2) through the UART, and transparently transmits the received Bluetooth instructions to the MCU module (2) to perform parameter configuration and switch lock control.
4. The logistics lock capable of realizing an ultra-long standby function according to claim 3 is characterized in that: Also includes: The RFID module (7) is located in the logistics lock body and is connected to the MCU module (2) via an electrical signal, and is used to read IC information. The RFID module (7) is configured to be powered on after the MCU module (2) is started, and immediately configures parameters via I2C and controls the RFID module (7) to enter a low power mode. After an IC card is detected, the MCU module (2) is awakened via the RFID_INT pin. The MCU module (2) controls the RFID module (7) to exit the low power mode via I2C and reads the IC card information. Whether to perform a lock opening and closing operation is confirmed via identity information matching, and then the RFID module (7) is controlled to enter the low power mode again.
5. The logistics lock capable of realizing an ultra-long standby function according to claim 4 is characterized in that: Also includes: The motor control module (8) is located in the logistics lock body and is connected to the MCU module (2) through an electrical signal, and is used to realize the switch lock operation. It is configured to receive a signal from the platform through the Bluetooth module (6) and the RFID module (7). If the operation is successful, the buzzer will beep once and a voice prompt will be given. If the operation fails, the buzzer will beep three times and a voice prompt will be given. The operation result is then reported to the platform, and the Bluetooth module (6) will finally reply to the operation result through the Bluetooth module (6).
6. The logistics lock capable of realizing an ultra-long standby function according to claim 1, characterized in that: The lithium-ion battery is a cylindrical metal shell battery with a battery model of ER18505 and a voltage of 3.6V. The temperature range of the battery can reach -40 degrees to 85 degrees.
7. The logistics lock capable of realizing an ultra-long standby function according to claim 5, characterized in that: The first LDO power supply is used to power the MCU module (2) and is configured to reduce the 3.6V voltage of the battery to 3.3V and has an ultra-low quiescent current of 2μA; multiple groups of the second LDO power supplies are respectively used to power the BDS / GPS module (5), the Bluetooth module (6), the RFID module (7) and the motor control module (8) and are configured to have an ultra-low leakage current; the DC-DC power supply is used to power the 4G communication module (4) and is configured to increase the 3.6V voltage of the battery to 4V.
8. The logistics lock capable of realizing an ultra-long standby function according to claim 1, characterized in that: Also includes: The RTC crystal oscillator (9) is connected to the MCU module (2) via an electrical signal and is used to provide a clock for the RTC inside the MCU module (2).
Citation Information
Patent Citations
Ultra-low power consumption fingerprint lock having electronic eye anti-theft and mobile phone communication functions
CN103291135A
Low-power-consumption intelligent cloud lock system easy to maintain, and unlocking method and device
CN108492409A
Intelligent storage and transportation system and method based on Internet of things
CN109326038A
Storage and transportation environment monitoring system
CN111080990A
Remote unlocking method for intelligent lock of recycled packaging box based on Bluetooth communication
CN111932730A