Intelligent logistics lock with voice broadcast function

Abstract

The invention provides an intelligent logistics lock with a voice broadcast function, and belongs to the technical field of embedded systems. Comprising a logistics lock body, the logistics lock body comprises a shell structure and a lock body, the shell structure is connected with the lock body, and the lock body is used for protecting logistics goods; and the power supply module is located in the shell structure and used for providing electric energy for the logistics lock body. According to the invention, the automatic unlocking authorization module and the automatic locking module are arranged, so that the logistics lock has a hardware unlocking and locking authority automatic authorization function, and also has a function of carrying out authorization judgment on the unlocking and locking authority of the logistics lock arriving at a destination by a software platform on the basis of RTK high-precision positioning; and the accuracy of unlocking and locking authorization of the goods is further ensured, meanwhile, the safety guarantee of goods transportation is also improved, the risk that the goods are tampered or damaged is reduced, and the function is particularly important for transportation of high-value or sensitive goods.

Description

Technical Field

[0001] The present invention relates to the technical field of embedded systems, and in particular to an intelligent logistics lock with a voice broadcasting function. Background Art

[0002] RFID technology is a wireless communication technology that uses radio waves to identify and track objects with RFID tags. The application of RFID technology in logistics lock control systems can effectively solve the limitations of traditional lock control systems.

[0003] Bluetooth unlocking and locking is based on Bluetooth technology. Its working principle mainly includes Bluetooth communication, Bluetooth pairing, Bluetooth signal recognition, data encryption and other aspects. Generally speaking, it realizes remote control and management through Bluetooth communication to ensure the safety and convenience of unlocking.

[0004] In the prior art, the traditional logistics lock control method makes it difficult to achieve efficient information interaction between the logistics lock body and the platform end, which makes it difficult for the platform end to monitor the cargo information. At the same time, when the logistics lock is damaged by the outside world, it is difficult to determine the cause of the damage, causing the logistics lock to lose contact with the platform end, which will greatly reduce the safety of the cargo. Therefore, the present application provides an intelligent logistics lock with a voice broadcast function to meet the needs. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an intelligent logistics lock with a voice broadcast function to solve the problem that the existing traditional logistics lock control method is difficult to achieve efficient information interaction between the logistics lock body and the platform end, which makes it difficult for the platform end to monitor the cargo information. At the same time, when the logistics lock is damaged by the outside world, it is difficult to determine the cause of the damage, causing the logistics lock to lose contact with the platform end, which will greatly reduce the safety of the cargo.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an intelligent logistics lock with a voice broadcast function, comprising: a logistics lock body, the logistics lock body comprising a shell structure and a lock body, the shell structure and the lock body are interconnected, and the lock body is used to protect logistics goods; a power supply module, located in the shell structure, for providing power to the logistics lock body; a main control board, located in the shell structure, and connected to the power supply module through an electrical signal, for controlling the lock body to switch the lock, and is configured to exchange information with the platform through the main control board when the lock body is damaged or the unlocking fails; a composite prompt module, located in the shell structure, and electrically connected to the main control board, for transmitting information on unlocking success or failure to the user.

[0007] Preferably, the main control board includes: an MCU module, which is used to control the components on the main control board and perform information processing; a power system, which is connected to the MCU module through electrical signals and is used to start or shut down the components in the logistics lock body; a GSM module, which is connected to the MCU module through electrical signals and is used for information interaction between the platform and the logistics lock body; a GPS module, which is connected to the MCU module through electrical signals and is used to locate the location of logistics goods; an alarm module, which is connected to the MCU module through electrical signals and is used to send an alarm signal to the MCU module when the lock body is damaged; a Bluetooth module, which is connected to the MCU module through electrical signals and is used for the mobile phone APP to connect to the logistics lock body and send a switch lock instruction. After receiving the command, the Bluetooth module sends it to the MCU module, and the MCU module sends it to the GSM module for password and instruction judgment. After the password and instruction are correct, the MCU is notified to execute the switch lock operation; an RFID module, which is connected to the MCU module through electrical signals and is used to detect the proximity of the IC card and perform ID recognition. The RFID module sends the recognized ID to the MCU module, and then sends it to the GSM module through the MCU module for identity authentication and authority judgment. After the ID is verified as a legal identity, the MCU module is notified to execute the corresponding switch lock operation.

[0008] Preferably, the composite prompt module includes: a TTS voice broadcast, which is connected to the MCU module through an electrical signal and is configured so that when a text message is received, the front-end system first performs text processing, including word segmentation and text regularization steps, to convert the text into an intermediate representation. Subsequently, the back-end system uses an acoustic model and speech synthesis technology to convert the intermediate representation into a voice signal and broadcast it; a buzzer, which is connected to the MCU module through an electrical signal and is configured so that when the MCU module receives the normal lock opening and closing information of the lock body, the buzzer beeps once and gives a voice prompt, and then reports the operation result to the platform. If the lock body operation fails, the MCU module receives the lock body lock opening and closing failure information, the buzzer beeps three times and gives a voice prompt, and then reports the operation result to the platform.

[0009] Preferably, the lock body includes: a lock rod; a lock tongue; a lock rope; a Hall sensor connected to the MCU module through electrical signals and used to detect whether the lock rod is in an inserted state or an uninserted state; a motor control module connected to the MCU module through electrical signals and used to realize the switch lock operation.

[0010] Preferably, it also includes: a line break detection module, which is connected to the MCU module through an electrical signal and is configured to process and judge the signal when the lock rope is cut or damaged manually and the signal line is disconnected. If the signal is disconnected continuously within a certain period of time, the line break detection module determines that the lock rope is disconnected. If the device is in an awake state, the MCU module detects the alarm state, obtains the data of the current GPS module, and notifies the GSM module to report the specific location where the "line cutting alarm" occurs; if the device is in a dormant state, the MCU module detects the alarm state, notifies the GSM module to wake up and go online and the GPS module to wake up for positioning. After going online, the GSM module reports the specific location where the "line cutting alarm" occurs.

[0011] Preferably, it also includes: an automatic unlocking authorization module, which is connected to the MCU module through electrical signals and is configured to determine, based on the positioning of the GPS module, that the goods have arrived at the destination, and the GSM module requests the platform to issue the unlocking authority for the current location. If the device has not arrived at the destination, after the platform receives the request for unlocking authority, it automatically determines that the location of the requested authority does not meet the conditions for granting unlocking authority, and the staff is not allowed to perform unlocking, and the device will remind the platform that someone has illegally requested unlocking authority.

[0012] Preferably, it also includes: an automatic locking module, which is connected to the MCU module through an electrical signal and is configured to determine the state of the lock rod according to the Hall sensor to lock the device.

[0013] Preferably, it also includes: an anti-theft module, which is connected to the MCU module through electrical signals and is configured so that the Bluetooth module can identify the tag and judge the distance. The Bluetooth sends the identified tag information to the GSM module, and the module judges the identity of the tag to determine whether it enters the anti-theft module.

[0014] Preferably, the power supply module adopts a rechargeable polymer lithium battery.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: in the above scheme, by setting an automatic unlocking authorization module and an automatic locking module, the logistics lock has the function of automatic authorization of hardware lock opening and closing authority, and has the function of authorization judgment of the lock opening and closing authority of the logistics lock arriving at the destination by the software platform on the basis of RTK high-precision positioning, which further ensures the accuracy of the lock opening and closing authorization of the goods, and also improves the safety of the goods transportation, and reduces the risk of the goods being tampered with or damaged. This function is particularly important for the transportation of high-value or sensitive goods.

[0016] 2. The logistics lock has both Bluetooth and RFID modules, multiple ways of switching the lock on and off, and supports remote switching and wireless switching. Compared with traditional mechanical locks, it reduces operating costs such as material consumption and manual operation, and optimizes the efficiency of logistics transportation.

[0017] 3. The logistics lock has the function of recording the information of opening and closing the lock, and can record the time and operator information of each opening and closing of the lock, which is convenient for logistics companies to manage and track goods, and is also of great significance in preventing internal personnel from stealing. At the same time, these records can also be used as evidence for subsequent investigation and handling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which constitute a 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.

[0019] Figure 1 The working principle diagram of the composition structure of the hardware part in the present invention; Figure 2 This is a working principle diagram of the lock body in the present invention; Figure 3 It is a structural circuit diagram of charging and discharging of the power supply module in the present invention; Figure 4 It is a functional logic diagram of the disconnection line detection module of the present invention; Figure 5 A structural circuit diagram of a line break detection module of the present invention; Figure 6 This is a functional logic diagram of the automatic unlocking authorization module in the present invention; Figure 7 It is a structural circuit diagram of the MCU module and the RFID module control in the present invention; Figure 8 This is a flowchart of unlocking in the present invention; Fig. 9 It is a flowchart of locking in the present invention; Fig.10 This is a flow chart of the instruction switch lock in the present invention; Fig.11 It is a flow chart of automatic locking in the present invention; Fig.12 This is a flow chart of the anti-theft module in the present invention. Fig.13 It is a structural diagram of the TTS voice broadcast and buzzer in the present invention; Fig.14 It is a structural circuit diagram of the TTS voice broadcast and buzzer in the present invention.

[0020] [Reference Signs] 1. Power supply module; 2. MCU module; 3. Power supply system; 4. GSM module; 5. GPS module; 6. Alarm module; 7. Bluetooth module; 8. RFID module; 10. Lock rod; 11. Lock tongue; 12. Lock rope; 13. Hall sensor; 14. Motor control module; 15. Wire break detection module.

[0021] 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

[0022] The following is a detailed description of an intelligent logistics lock with voice broadcast 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 more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0023] Embodiment 1: The embodiment of the present invention provides an intelligent logistics lock with a voice broadcast function, including: a logistics lock body, the logistics lock body includes a shell structure and a lock body, the shell structure and the lock body are interconnected, and the lock body is used to protect logistics goods; a power supply module 1, located in the shell structure, is used to provide power to the logistics lock body; a main control board, located in the shell structure, and connected to the power supply module 1 through an electrical signal, is used to control the lock body switch, and is configured to exchange information with the platform through the main control board when the lock body is damaged or unlocking fails; a composite prompt module, located in the shell structure, and electrically connected to the main control board, is used to transmit information about unlocking success or failure to the user.

[0024] It should be noted that this design is a multifunctional intelligent physical lock with voice broadcast combined with a buzzer. The product is a mobile communication terminal based on technologies such as GPS, GPRS, RFID and Bluetooth. It is a safety detection and security equipment installed on the door of logistics transportation tools such as containers or vans. It has the characteristics of RFID control, Bluetooth control, intelligent alarm, intelligent monitoring, intelligent anti-theft, ultra-long standby, repeated charging, voice broadcast, etc., and through the GPS module 5 with high-precision capability, it can accurately determine the current location of the device, and also has the function of determining whether the current location is in an environment where the switch lock can be operated. It is a practical product.

[0025] like Figure 1 , Figure 7 , Fig. 9 and Fig.10 As shown, the main control board includes: an MCU module 2, which is used to control the components on the main control board and perform information processing; a power system 3, which is connected to the MCU module 2 through electrical signals and is used to start or shut down the components in the logistics lock body; a GSM module 4, which is connected to the MCU module 2 through electrical signals and is used for information exchange between the platform and the logistics lock body; a GPS module 5, which is connected to the MCU module 2 through electrical signals and is used to locate the location of logistics goods; an alarm module 6, which is connected to the MCU module 2 through electrical signals and is used to send an alarm signal to the MCU module 2 when the lock body is damaged; a Bluetooth module 7, which is connected to the MCU module 2 through electrical signals , used for mobile phone APP to connect to the logistics lock body and send the switch lock instruction. After receiving the command, the Bluetooth module 7 sends it to the MCU module 2, and the MCU module 2 sends it to the GSM module 4 for password and instruction judgment. After the password and instruction are correct, the MCU is notified to execute the switch lock operation; the RFID module 8 is connected to the MCU module 2 through an electrical signal, which is used to check the proximity of the IC card and perform ID recognition. The RFID module 8 sends the recognized ID to the MCU module 2, and then sends it to the GSM module 4 through the MCU module 2 for identity authentication and authority judgment. After the ID is verified to be a legal identity, the MCU module 2 is notified to execute the corresponding switch lock operation.

[0026] Embodiment 2: Figure 13 to Figure 14 As shown, the composite prompt module includes: TTS voice broadcast, which is connected to the MCU module 2 through an electrical signal and is configured so that when a text message is received, the front-end system first performs text processing, including word segmentation and text regularization steps, and converts the text into an intermediate representation. Subsequently, the back-end system uses an acoustic model and speech synthesis technology to convert the intermediate representation into a voice signal and broadcast it; a buzzer, which is connected to the MCU module 2 through an electrical signal and is configured so that when the MCU module 2 receives the normal lock opening and closing information of the lock body, the buzzer beeps once and gives a voice prompt, and then reports the operation result to the platform. If the lock body operation fails, the MCU module 2 receives the lock body lock opening and closing failure information, the buzzer beeps three times and gives a voice prompt, and then reports the operation result to the platform.

[0027] It should be noted that when receiving text information, the front-end system first performs text processing, including word segmentation, text regularization and other steps to convert the text into an intermediate representation. Subsequently, the back-end system uses acoustic models and speech synthesis technology to convert the intermediate representation into a speech signal. The SGM4996 audio power amplifier amplifies these voice signals and plays them out through output devices such as speakers to achieve high-quality voice broadcasting. This process combines natural language processing, digital signal processing and audio amplification technology to provide users with clear and accurate voice prompts and broadcasting services.

[0028] like Figure 2 As shown, the lock body includes: a lock rod 10; a lock tongue 11; a lock rope 12; a Hall sensor 13, which is connected to the MCU module 2 through an electrical signal and is used to detect whether the lock rod 10 is in an inserted state or an uninserted state; a motor control module 14, which is connected to the MCU module 2 through an electrical signal and is used to realize the switch lock operation.

[0029] like Figures 4 to 5 As shown, it also includes: a line break detection module 15, which is connected to the MCU module 2 through an electrical signal, and is configured to process and judge the signal when the lock rope 12 is cut or damaged by humans and the signal line is disconnected. If the signal is disconnected continuously within a certain period of time, the line break detection module 15 determines that the lock rope 12 is disconnected. If the device is in an awake state, the MCU module 2 detects the alarm state, obtains the current data of the GPS module 5, and notifies the GSM module 4 to report the specific location where the "line cutting alarm" occurs; if the device is in a dormant state, the MCU module 2 detects the alarm state, notifies the GSM module 4 to wake up and go online and the GPS module 5 to wake up for positioning. After going online, the GSM module 4 reports the specific location where the "line cutting alarm" occurs.

[0030] like Figure 6 and Figure 8 As shown, it also includes: an automatic unlocking authorization module, which is connected to the MCU module 2 through an electrical signal and is configured to locate according to the GPS module 5 to accurately determine whether the goods have arrived at the destination. The GSM module 4 requests the platform to issue the unlocking authority for the current position. If the device has not arrived at the destination, after the platform receives the request for unlocking authority, it automatically determines that the location of the request for authority does not meet the conditions for granting unlocking authority, and the staff is not allowed to perform unlocking, and the device will remind the platform that someone has illegally requested unlocking authority.

[0031] It should be specifically explained that when the device is in a normal locked state, the platform sends an instruction to set the longitude and latitude of the destination location with unlocking authority or a certain range of the destination location. After receiving the instruction, the device forcibly closes the unlocking authority. If the device arrives at the destination, the device determines the current location based on the RTK high-precision positioning, accurately determines that the goods have arrived at the destination, and requests the GSM platform to issue the current location unlocking authority. After the platform receives the request for unlocking authority, it automatically determines whether the location of the requested authority meets the conditions for granting unlocking authority. Only after granting the current location unlocking authority will the device allow the staff to perform the unlocking operation; if the device has not arrived at the destination, after the platform receives the request for unlocking authority, it automatically determines that the location of the requested authority does not meet the conditions for granting unlocking authority, and does not allow the staff to perform unlocking, and the device will remind the platform that someone has illegally requested unlocking authority.

[0032] like Fig.11As shown, it also includes: an automatic locking module, which is connected to the MCU module 2 through an electrical signal and is configured to determine the state of the locking rod 10 according to the Hall sensor 13 to lock the lock.

[0033] It should be noted that after the device is unlocked, if the locking rod 10 has not been pulled out, the Hall sensor 13 detects that the locking rod 10 is in an inserted state. After the MCU receives this state, it performs RTC clock timing. After reaching the threshold of the automatic locking setting, the MCU executes locking. After the locking is successful, the buzzer beeps once and a voice prompt is given. If the operation fails, the buzzer beeps three times and a voice prompt is given, and then the operation result is reported to the platform software; if the locking rod 10 has not been pulled out, when the locking rod 10 is inserted, the Hall sensor 13 detects that the locking rod 10 is inserted. After the MCU receives this state, it performs RTC clock timing. After reaching the threshold of the automatic locking setting, the MCU executes locking, or the MCU immediately executes locking after receiving the insertion of the locking rod 10. After the locking is successful, the buzzer beeps once and a voice prompt is given. If the operation fails, the buzzer beeps three times and a voice prompt is given, and then the operation result is reported to the platform software.

[0034] like Fig.12 As shown, it also includes: an anti-theft module, which is connected to the MCU module 2 through electrical signals and is configured as a Bluetooth module 7 that can identify the tag and judge the distance. Bluetooth sends the identified tag information to GSM, and the module performs identity judgment on the tag to determine whether to enter the anti-theft module.

[0035] It should be noted that after the device is turned on normally, if there are Bluetooth tags around the device, the Bluetooth module 7 will identify the tag and judge the distance. Bluetooth will send the identified tag information to GSM, and the module will judge the identity of the tag. If the Bluetooth tag is a bound tag, the device automatically grants the tag carrier operation authority and releases the anti-theft mode at the same time; if the Bluetooth tag is an unbound tag or there is no tag, the device automatically locks the operation authority and automatically locks, and enters the anti-theft mode at the same time. If the automatic locking fails, a voice prompt and SMS prompt will be issued. In the anti-theft mode, if you operate to unlock or vibrate the device, the device will issue a voice alarm and report to the platform, and at the same time, call or text message to remind the staff.

[0036] like Figure 3 As shown, the power supply module 1 adopts a rechargeable polymer lithium battery.

[0037] It should be noted that the MP2615 combines the charging and discharging principle of the ME6232C33M5G. The MP2615 is a high-efficiency switching battery charger suitable for lithium-ion batteries and lithium polymer batteries. It can provide a maximum charging current of 2A and has two stages: constant current charging (CC) and constant voltage charging (CV), as well as a reverse discharge lockout protection function. The charging and discharging principle of the MP2615 mainly includes two stages: constant current charging (CC) and constant voltage charging (CV): Constant current charging (CC): When the battery voltage is lower than the set value, the MP2615 charges the battery with a constant current. The charging current can be accurately adjusted through an external sampling resistor to quickly replenish the battery. Constant voltage charging (CV): When the battery voltage reaches the set value, the charging current is adjusted to a certain value. When the value is reached, MP2615 automatically switches to constant voltage charging mode to keep the battery voltage stable, while the charging current gradually decreases until charging is completed, ensuring that the battery is safely fully charged and avoiding overcharging; in addition, MP2615 also has battery temperature and charging status monitoring functions, as well as a lockout protection function to prevent battery reverse discharge, ensuring the safety and reliability of the charging process. The ME6232C33M5G is a high-performance LDO converter with high efficiency and low power consumption. It provides a fixed 3.3V output voltage and is suitable for a variety of electronic devices with low current requirements. During the charging and discharging process, the MP2615 is responsible for efficient charging, while the ME6232C33M5G provides a stable voltage output. The combination of the two can achieve efficient battery charging and discharging management.

[0038] 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; GSM stands for Global System for Mobile Communications, which is a widely used second-generation mobile communication standard (2G); RTK (Real-Time Kinematic) technology is real-time dynamic carrier phase differential technology, which is a real-time differential GPS (Global Positioning System) measurement technology based on carrier phase observation; in the above scheme, the operations of RTK technology, RFID module 8 and Bluetooth module 7 are all existing technologies, which are controlled by existing systems and are well known in the art. Practitioners in this industry are already aware of them and will not be repeated here.

[0039] The technical solution provided by the present invention is that after the logistics lock body is placed on the truck and the lock operation is performed, if the device arrives at the destination, the device determines the current position according to the RTK high-precision positioning, accurately determines that the goods have arrived at the destination, and the GSM request platform issues the authorization to unlock the current position. If the device does not arrive at the destination, after the platform receives the request for the authorization to unlock, it automatically determines that the position of the requested authorization does not meet the conditions for granting the authorization to unlock, and does not allow the staff to perform the unlocking, and the device will remind the platform that someone has illegally requested the authorization to unlock; during the transportation of goods, if the lock rope 12 is cut or damaged by humans, the signal line is disconnected, and the disconnection detection module 15 processes and determines the signal. If the signal disconnection occurs continuously within a certain period of time, the module determines that the lock rope 12 is disconnected. MCU detects the alarm state, obtains the current GPS data, and notifies GSM to report the specific location of the "wire cutting alarm"; when the logistics lock body needs to be opened, the mobile phone APP can be connected to Bluetooth, IC card or platform to send information to unlock it. When the lock is successfully opened or closed, the buzzer beeps once and a voice prompt is given. If the operation fails, the buzzer beeps three times and a voice prompt is given, and then the operation result is reported to the platform. Among them, when connecting to Bluetooth, if there is a Bluetooth tag around the device, the Bluetooth module 7 will identify the tag and judge the distance. Bluetooth will send the identified tag information to GSM, and the module will judge the identity of the tag. If the Bluetooth tag is an unbound tag or there is no tag, the device automatically locks the operation authority and automatically locks the door, and enters the anti-theft mode at the same time.

[0040] 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.

[0041] 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. An intelligent logistics lock with voice broadcast function, characterized in that: include: The logistics lock body comprises a shell structure and a lock body, the shell structure and the lock body are connected to each other, and the lock body is used to protect logistics goods; A power supply module (1), located in the housing structure, and used to provide electrical energy to the logistics lock body; A main control board is located in the housing structure and is connected to the power supply module (1) via an electrical signal, and is used to control the lock body to be turned on or off, and is configured to exchange information with the platform via the main control board when the lock body is damaged or unlocking fails; The composite prompt module is located in the shell structure and is electrically connected to the main control board to transmit information on unlocking success or failure to the user.

2. The intelligent logistics lock with voice broadcast function according to claim 1 is characterized in that: The main control board comprises: MCU module (2), used to control components on the main control board and perform information processing; A power supply system (3) 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 GSM module (4) is connected to the MCU module (2) via an electrical signal and is used for information exchange between the platform and the logistics lock body; The GPS module (5) is connected to the MCU module (2) via an electrical signal, is used to locate the position of the logistics goods, and is configured to use RTK technology; An alarm module (6) is connected to the MCU module (2) via an electrical signal and is used to send an alarm signal to the MCU module (2) when the lock body is damaged; The Bluetooth module (7) is connected to the MCU module (2) via an electrical signal, and is used for the mobile phone APP to connect to the logistics lock body and send a lock opening and closing instruction. After receiving the command, the Bluetooth module (7) sends it to the MCU module (2), and the MCU module (2) sends it to the GSM module (4) to judge the password and the instruction. After the password and the instruction are correct, the MCU is notified to execute the lock opening and closing operation; The RFID module (8) is connected to the MCU module (2) via an electrical signal and is used to detect the proximity of an IC card and perform ID recognition. The RFID module (8) sends the recognized ID to the MCU module (2), which then sends it to the GSM module (4) via the MCU module (2) for identity verification and authority judgment. After the ID is verified to be a legitimate identity, the MCU module (2) is notified to perform a corresponding switch lock operation.

3. The intelligent logistics lock with voice broadcast function according to claim 2 is characterized in that: The composite prompt module comprises: The TTS voice broadcast is connected to the MCU module (2) via an electrical signal and is configured such that when a text message is received, the front-end system first performs text processing, including word segmentation and text regularization steps, to convert the text into an intermediate representation. Subsequently, the back-end system uses an acoustic model and speech synthesis technology to convert the intermediate representation into a voice signal and broadcast it; The buzzer is connected to the MCU module (2) via an electrical signal and is configured such that when the MCU module (2) receives information that the lock body is normally turned on or off, the buzzer beeps once and gives a voice prompt, and then reports the operation result to the platform; if the lock body operation fails, the MCU module (2) receives information that the lock body is turned on or off, the buzzer beeps three times and gives a voice prompt, and then reports the operation result to the platform.

4. The intelligent logistics lock with voice broadcast function according to claim 2 is characterized in that: The lock body comprises: Locking rod (10); Lock tongue (11); Lock rope (12); A Hall sensor (13) is connected to the MCU module (2) via an electrical signal and is used to detect whether the lock rod (10) is in an inserted state or an uninserted state; The motor control module (14) is connected to the MCU module (2) via an electrical signal and is used to implement a switch lock operation.

5. The intelligent logistics lock with voice broadcast function according to claim 4 is characterized in that: Also includes: The disconnection detection module (15) is connected to the MCU module (2) via an electrical signal and is configured such that when the lock rope (12) is cut or damaged by human hands and the signal line is disconnected, the disconnection detection module (15) processes and judges the signal. If the signal disconnection occurs continuously within a certain period of time, the disconnection detection module (15) judges that the lock rope (12) is disconnected. If the device is in an awake state, the MCU module (2) detects an alarm state, obtains data from the current GPS module (5), and notifies the GSM module (4) to report the specific location where the "cable cutting alarm" occurs; if the device is in a dormant state, the MCU module (2) detects the alarm state, notifies the GSM module (4) to wake up and go online and the GPS module (5) to wake up for positioning. After going online, the GSM module (4) reports the specific location where the "cable cutting alarm" occurs.

6. The intelligent logistics lock with voice broadcast function according to claim 2 is characterized in that: Also includes: The automatic unlocking authorization module is connected to the MCU module (2) through an electrical signal and is configured to accurately determine that the goods have arrived at the destination based on the positioning of the GPS module (5). The GSM module (4) requests the platform to issue an unlocking authorization for the current location. If the device has not arrived at the destination, after the platform receives the unlocking authorization request, it automatically determines that the location of the unlocking authorization request does not meet the conditions for granting the unlocking authorization, and does not allow the staff to perform the unlocking. In addition, the device will remind the platform that someone has illegally requested the unlocking authorization.

7. The intelligent logistics lock with voice broadcast function according to claim 4 is characterized in that: Also includes: The automatic locking module is connected to the MCU module (2) via an electrical signal and is configured to determine the state of the locking rod (10) based on the Hall sensor (13) to perform locking.

8. The intelligent logistics lock with voice broadcast function according to claim 2 is characterized in that: Also includes: The anti-theft module is connected to the MCU module (2) via an electrical signal and is configured as a Bluetooth module (7) that identifies the tag and determines the distance. The Bluetooth module sends the identified tag information to the GSM module, and the module determines the identity of the tag to determine whether it has entered the anti-theft module.

9. The intelligent logistics lock with voice broadcast function according to claim 1 is characterized in that: The power supply module (1) uses a rechargeable polymer lithium battery.

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