RFID door lock system based on Internet of Things communication and global positioning

Abstract

The utility model provides a radio frequency identification (RFID) door lock system based on internet of things communication and global positioning, which comprises a card-swiping unlocking system, a card-swiping unlocking system and a card-swiping unlocking system, the card-swiping unlocking system comprises an RFID module used for identifying an ID card of a user, the RFID module is provided with an antenna, and the antenna is in wireless signal connection with the ID card; the RFID module is connected with an MCU module used for being matched with an ID card number, and the MCU module is connected with a driving module used for controlling opening and closing of the door lock. According to the utility model, the structure is simple and reasonable, the integrality is strong, the lock catch is opened and closed by using the motor and the RFID module, and the trouble of manual operation is reduced; the lorry position is tracked and reported through the Internet of Things communication module and the GNSS chip, the MCU module and other sensors work cooperatively, the lock catch state, the temperature and humidity, the acceleration, the lorry positioning state and other information are processed in a centralized mode and sent to a user side, the lorry position and form state can be recorded at any time while a compartment is protected against theft, and the lorry positioning state can be recorded at any time. And the safety of the truck and the goods is improved.

Description

Technical Field

[0001] This utility model relates to the field of RFID door lock technology, and more particularly to the field of logistics and transportation technology; specifically, it relates to an RFID door lock system based on Internet of Things communication and global positioning. Background Technology

[0002] For logistics and transportation, the safety of trucks and their cargo is paramount. Truck door locks are crucial for ensuring the safety of transported goods. Due to the heavy weight and large size of large truck bodies, the security performance of these door locks is of paramount importance.

[0003] The existing locks on the doors of logistics trucks are mainly mechanical locks. Mechanical locks are mostly made of metal (such as galvanized carbon steel) and come in sizes such as 4-point, 6-point, and 1-inch. They are used to fix the doors through lock cylinders or tubular lock structures. They are suitable for ordinary vans, containers, etc., and are relatively inexpensive. However, the keys are easy to copy, and the anti-theft performance is weak. Mechanical locks require repair when the lock cylinder malfunctions, and need to be reshaped or replaced when the lock body is deformed. The maintenance frequency is high, and the parts that need to be inspected and replaced are relatively complicated.

[0004] Unlike mechanical locks, RFID door locks use contactless technology. They achieve the locking mechanism by embedding an encrypted sequence that cannot be copied into the smart card, thus ensuring the reliability of the door lock.

[0005] However, existing RFID door locks are only used in scenarios such as access control systems in office environments, and are not suitable for use in mobile environments, thus failing to meet the security requirements of logistics and transportation scenarios. Utility Model Content

[0006] Therefore, the purpose of this utility model is to design an RFID (Radio Frequency Identification) door lock system based on Internet of Things communication and global positioning, which uses a motor (brushless motor) and RFID module to realize the opening and closing of the lock, reducing the trouble of manual operation, reducing human error, and improving the safety of trucks and goods.

[0007] This utility model provides an RFID door lock system based on Internet of Things communication and global positioning, including: a card-swipe unlocking system, which includes an RFID module for identifying a user's ID card, the RFID module being equipped with an antenna, the antenna being wirelessly connected to the ID card; the RFID module being connected to an MCU module for matching the ID card number, and the MCU module being connected to a drive module for controlling the door lock opening and closing.

[0008] Specifically, the ID card is a dedicated card for the RFID module. The RFID module will only react when the corresponding ID card is brought close to the antenna, ensuring the safety of logistics trucks and goods.

[0009] When a user's ID card is brought close to the antenna of the RFID module, the RFID module communicates with the MCU module via IIC (Integrated Circuit Bus) to match the ID card number. Once the ID card number is confirmed to be correct, the MCU module controls the drive module to operate, thereby opening or closing the door lock. This process is highly automated, reducing the hassle of manual lock operation and minimizing human error.

[0010] Furthermore, the drive module includes a motor drive circuit, which is electrically connected to a motor. The output end of the motor is provided with an output shaft, and the side of the extended end of the output shaft is provided with a groove. A physical push-button switch is provided near the groove. During one revolution of the output shaft, the groove contacts the physical push-button switch once.

[0011] The MCU module controls the motor drive circuit, which in turn controls the motor's rotation.

[0012] When the motor starts to rotate one revolution in the forward direction, the groove on the motor's output shaft will touch the adjacent physical push-button switch, causing the physical push-button switch to close. The physical push-button switch closes once for each revolution of the motor's output shaft. One end of the physical push-button switch is grounded (GND), and the other end is connected to the GPIO port of the MCU module. When the state changes, the MCU module shuts off the motor rotation through the motor drive circuit.

[0013] Furthermore, a protrusion is provided on the end face of the extended end of the output shaft, and a conductive latch is provided near the protrusion. The protrusion contacts the latch once during one revolution of the output shaft, and the latch is signal-connected to the MCU module.

[0014] Preferably, the protrusion is made of plastic, and the plastic material will not damage the latch when it comes into contact with the latch.

[0015] After the motor rotates one revolution, the protrusion at the top of the motor's output shaft (the end face of the extended end) contacts the latch, pushing the latch open. The latch is a conductor, and the MCU module receives the status from the latch, thus determining that the latch is open.

[0016] The normal unlocking logic of this RFID door lock system is as follows: When the ID card is brought close to the antenna on the RFID module, the MCU module controls the motor to rotate. The MCU module receives a status switch from the physical push-button switch, the latch opens, and the MCU module receives latch opening information. This RFID door lock system can determine whether the latch is opened normally and whether there is illegal unlocking. When the latch is illegally cut, the latch status will be sent to the MCU module. However, at this time, the MCU module does not control the motor to unlock, so the MCU module will consider this unlocking to be illegal.

[0017] Furthermore, one end of the latch is connected to the GPIO port of the MCU module, and the other end of the latch is grounded (GND).

[0018] GPIO ports are general interfaces for interaction between the MCU module and external hardware devices (locks). The state of the lock changes every time the motor's output shaft rotates. The pins of the GPIO module are used as inputs or outputs to read the lock state.

[0019] One end of the latch is grounded (GND), which is crucial for RFID door lock systems. Electromagnetic interference can affect the normal operation of RFID door lock systems, leading to malfunctions. Grounding one end of the latch to GND helps reduce electromagnetic interference in high-frequency circuits and wireless communication, improving the stability of the RFID door lock system.

[0020] In addition, the locking grounding GND can prevent static electricity accumulation and leakage. The GND interface can conduct leakage current to the ground, avoiding equipment damage or electric shock to personnel, and protecting the safety of equipment and users.

[0021] Furthermore, the RFID door lock system also includes a positioning and tracking system, which includes a GNSS chip for navigation and positioning, and the GNSS chip is connected to an LTE module for providing high-speed, low-latency mobile data transmission services, and the LTE module is connected to a user terminal device.

[0022] In recent years, with the continuous development of IoT technology, it has permeated all aspects of life. This utility model applies IoT communication to logistics and transportation. When the RFID door lock system unlocks, the GNSS chip starts positioning. Then, the GNSS chip communicates with the LTE module (IoT communication module), sending the positioning information to the LTE module, which in turn sends the positioning information to the user's app or mobile phone.

[0023] Furthermore, the positioning and tracking system includes sensors for collecting and detecting the truck's operating status and latch status. The sensors are signal-connected to the MCU module, and the MCU module is signal-connected to the LTE module.

[0024] The MCU module receives truck operating status and latch status information collected from sensors, and then sends this information to the LTE module. The LTE module then transmits this status information collected by the sensors to the user's app or mobile phone.

[0025] Furthermore, the sensor includes: a temperature and humidity sensor for collecting the temperature and humidity inside and outside the truck, an acceleration sensor for collecting the acceleration of the truck, and a photosensitive chip for detecting changes in ambient light around the latch. The temperature and humidity sensor, the acceleration sensor, and the photosensitive chip are respectively connected to the MCU module.

[0026] When the unlock status changes, the GNSS chip activates positioning, and the MCU module acquires the sensor status. Among these, the photosensor chip can detect the latch status based on changes in ambient light. The MCU module receives status signals collected by each sensor, while the LTE module acquires the truck's GNSS positioning information, temperature and humidity status, acceleration status, and latch status. The LTE module then transmits this status information to the user terminal, which receives this crucial data.

[0027] Furthermore, the GNSS chip and the LTE module are connected via an asynchronous transceiver (UART).

[0028] In one embodiment of this utility model, after the GNSS chip enables positioning, the GNSS chip communicates with the LTE module. The GNSS chip sends the positioning information to the LTE module via an asynchronous transceiver UART. The LTE module then sends the positioning status of the latch to the user's APP or mobile phone.

[0029] Furthermore, the MCU module and the LTE module are connected via an asynchronous transceiver (UART).

[0030] In one embodiment of this invention, the MCU module transmits the truck operating status information collected and detected by sensors such as temperature and humidity sensors, acceleration sensors, and photosensitive chips to the LTE module via another asynchronous transceiver (UART).

[0031] Compared with the prior art, the beneficial effects of this utility model are:

[0032] The RFID door lock system based on IoT communication and global positioning provided by this utility model has a simple and reasonable architecture with strong overall integration. It uses a motor (brushless motor) and RFID module to realize the opening and closing of the latch, which has a high degree of automation, reduces the trouble of manual operation, and reduces human error. Through the IoT communication module and GNSS chip, the system tracks and reports the location of the truck. The MCU module and other sensors work together to centrally process and send information such as latch status, temperature and humidity, acceleration, and truck positioning status to the user terminal. While protecting the truck compartment from theft, it can record the location and status of the truck at any time, which improves the security of the truck and its cargo and has broad application prospects. Attached Figure Description

[0033] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention.

[0034] In the attached diagram:

[0035] Figure 1 This is an architecture diagram of the card-swiping unlocking system according to an embodiment of this utility model;

[0036] Figure 2 This is an architecture diagram of the positioning and tracking system according to an embodiment of the present utility model;

[0037] Figure 3 This is a subassembly drawing of an embodiment of the present utility model, including components or structural features such as a motor, a groove, a physical push-button switch, and a latch.

[0038] The markings in the attached figure are as follows:

[0039] 1. ID card, 2. Antenna, 3. RFID module, 4. MCU module, 5. Motor drive circuit, 6. Physical push-button switch, 7. Motor, 9. Lock, 10. GNSS chip, 11. LTE module, 12. Sensor, 13. Groove, 14. Protrusion. Detailed Implementation

[0040] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0041] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0042] It should be understood that although the terms first, second, and third may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0043] Example

[0044] This utility model embodiment provides an RFID door lock system based on Internet of Things communication and global positioning, including a card-swipe unlocking system (such as...). Figure 1 As shown), the card-swipe unlocking system includes an RFID module 3 for identifying the user's ID card 1. The RFID module 3 is equipped with an antenna 2, which is wirelessly connected to the ID card 1. The RFID module 3 is connected to an MCU module 4 for matching the card number of the ID card 1. The MCU module 4 is connected to a drive module for controlling the door lock switch. Figure 1 As shown, when the user's ID card 1 approaches the antenna 2 of the RFID module 3, the RFID module 3 communicates with the MCU module 4 via the IIC (Integrated Circuit Bus) to match the card number of ID card 1. After confirming the card number of ID card 1, the MCU module 4 controls the drive module to operate, realizing the opening or closing operation of the door lock. This highly automated process reduces the hassle of manual lock operation and minimizes human error. The RFID module 3 only reacts when the corresponding ID card 1 approaches the antenna 2, ensuring the safety of the logistics truck and goods. The drive module includes a motor drive circuit 5, which is electrically connected to a motor 7. The output end of the motor 7 is equipped with an output shaft, and a groove 13 (e.g., ...) is provided on the side of the extended end of the output shaft. Figure 3As shown, a physical push-button switch 6 is located near the groove 13. The groove 13 contacts the physical push-button switch 6 once per revolution of the output shaft. The MCU module 4 controls the motor drive circuit 5, which in turn controls the rotation of the motor 7. When the motor 7 begins to rotate one revolution in the forward direction, the groove 13 on the output shaft of the motor 7 will contact the adjacent physical push-button switch 6, causing the physical push-button switch 6 to close. The physical push-button switch 6 closes once per revolution of the output shaft of the motor 7. One end of the physical push-button switch 6 is connected to GND, and the other end is connected to the GPIO port of the MCU module 4. When the state changes, the MCU module 4 will shut down the rotation of the motor 7 through the motor drive circuit 5. A plastic protrusion 14 is provided on the extended end face of the output shaft of the motor 7. A conductive latch 9 is located near the protrusion 14. The protrusion 14 contacts the latch 9 once per revolution of the output shaft. The latch 9 is connected to the MCU module 4 via signal connection. After motor 7 rotates one revolution, the protrusion 14 at the top (extended end face) of the output shaft of motor 7 contacts latch 9, pushing latch 9 open. Latch 9 is conductive, and MCU module 4 receives the status from latch 9, determining that latch 9 is open. The normal unlocking logic in this embodiment is as follows: the ID card approaches antenna 2 on RFID module 3, MCU module 4 controls motor 7 to rotate, MCU module 4 receives the status switch of physical push-button switch 6, latch 9 opens, and MCU module 4 receives latch 9 open information. This RFID door lock system can determine whether latch 9 is normally opened and whether there is illegal unlocking. When latch 9 is illegally cut, the status of latch 9 is sent to MCU module 4, but at this time, it is not MCU module 4 controlling motor 7 to unlock, so MCU module 4 considers this unlocking to be illegal.

[0045] One end of the latch 9 is connected to the GPIO port of the MCU module 4, and the other end of the latch 9 is grounded (GND). The GPIO port is a general interface for interaction between the MCU module 4 and the latch 9. Each rotation of the output shaft of the motor 7 changes the state of the latch 9. The pins of the GPIO module are used as inputs or outputs to read the state of the latch 9. Grounding one end of the latch 9 to GND reduces electromagnetic interference in high-frequency circuits and wireless communication, improving the stability of the RFID door lock system. Furthermore, grounding the latch 9 to GND also prevents static electricity buildup and leakage current. The GND interface directs leakage current to the ground, preventing equipment damage or electric shock, and protecting the safety of the equipment and users.

[0046] RFID door lock systems also include location tracking systems (such as...) Figure 2 As shown), the positioning and tracking system includes a GNSS chip 10 for navigation and positioning, which is connected to an LTE module 11 for providing high-speed, low-latency mobile data transmission services. The LTE module 11 is connected to the user terminal equipment. Figure 2As shown, when the RFID door lock system unlocks, the GNSS chip 10 initiates positioning. Then, the GNSS chip 10 communicates with the LTE module 11 (IoT communication module), sending the positioning information to the LTE module 11. The LTE module 11 then sends the positioning information to the user's app or mobile phone. The positioning and tracking system includes sensors 12 for collecting and detecting the truck's operating status and lock status. Sensors 12 include a temperature and humidity sensor for collecting the temperature and humidity inside and outside the truck, an accelerometer for collecting the truck's acceleration, and a photosensitive chip for detecting changes in ambient light around the lock. The temperature and humidity sensor, accelerometer, and photosensitive chip are signal-connected to the MCU module 4, which is signal-connected to the LTE module 11. The MCU module 4 receives the truck's operating status and lock status information collected by the sensors 12 and then sends this information to the LTE module 11. The LTE module 11 then sends this status information collected by the sensors 12 to the user's app or mobile phone. When the unlocking status changes, the GNSS chip 10 activates positioning, the MCU module 4 acquires the status of the sensor 12, and the photosensitive chip detects the status of the latch 9 based on changes in ambient light. The MCU module 4 receives the status signals collected by each sensor 12, and the LTE module 11 acquires the truck's GNSS positioning information, temperature and humidity status, acceleration status, and latch status. The LTE module 11 sends this status information to the user terminal, which receives this important information.

[0047] GNSS chip 10 and LTE module 11 are connected via an asynchronous transceiver (UART). After GNSS chip 10 enables positioning, it communicates with LTE module 11, sending positioning information to LTE module 11 via UART. LTE module 11 then sends the positioning status of latch 9 to the user's app or mobile phone. MCU module 4 is connected to LTE module 11 via another UART. MCU module 4 sends the truck's operating status information collected and detected by sensors 12 (temperature and humidity sensor, acceleration sensor, and photosensor chip) to LTE module 11 via another UART.

[0048] The RFID door lock system based on IoT communication and global positioning in this embodiment has a simple and reasonable architecture with strong overall integration. It uses a motor (brushless motor) and RFID module to realize the opening and closing of the latch, which has a high degree of automation, reduces the trouble of manual operation, and reduces human error. Through the IoT communication module and GNSS chip, the system tracks and reports the truck's location. The MCU module and other sensors work together to centrally process and send information such as latch status, temperature and humidity, acceleration, and truck positioning status to the user terminal. While protecting the truck compartment from theft, it can record the truck's location and status at any time, improving the security of the truck and its cargo.

[0049] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An RFID door lock system based on Internet of Things (IoT) communication and global positioning, characterized in that, include: The card-swipe unlocking system includes an RFID module for identifying a user's ID card, the RFID module being equipped with an antenna that is wirelessly connected to the ID card; the RFID module is connected to an MCU module for matching the ID card number, and the MCU module is connected to a drive module for controlling the door lock switch.

2. The RFID door lock system based on IoT communication and global positioning according to claim 1, characterized in that, The drive module includes a motor drive circuit, which is electrically connected to a motor. The output end of the motor is provided with an output shaft. The side of the extended end of the output shaft is provided with a groove. A physical push-button switch is provided near the groove. The groove contacts the physical push-button switch once during one rotation of the output shaft.

3. The RFID door lock system based on IoT communication and global positioning according to claim 2, characterized in that, The output shaft has a protrusion on its extended end face, and a conductive latch is located near the protrusion. The protrusion contacts the latch once during one revolution of the output shaft, and the latch is connected to the MCU module for signal transmission.

4. The RFID door lock system based on IoT communication and global positioning according to claim 3, characterized in that, One end of the latch is connected to the GPIO port of the MCU module, and the other end of the latch is grounded (GND).

5. The RFID door lock system based on Internet of Things communication and global positioning according to claim 1, characterized in that, Also includes: A positioning and tracking system, comprising a GNSS chip for navigation and positioning, the GNSS chip being connected to an LTE module for providing high-speed, low-latency mobile data transmission services, the LTE module being connected to a user terminal device.

6. The RFID door lock system based on Internet of Things communication and global positioning according to claim 5, characterized in that, The positioning and tracking system includes sensors for collecting and detecting the truck's operating status and latch status. The sensors are connected to the MCU module, and the MCU module is connected to the LTE module.

7. The RFID door lock system based on Internet of Things communication and global positioning according to claim 6, characterized in that, The sensors include: a temperature and humidity sensor for collecting the temperature and humidity inside and outside the truck, an acceleration sensor for collecting the acceleration of the truck, and a photosensitive chip for detecting changes in ambient light around the latch. The temperature and humidity sensor, the acceleration sensor, and the photosensitive chip are respectively connected to the MCU module.

8. The RFID door lock system based on Internet of Things communication and global positioning according to claim 5, characterized in that, The GNSS chip and the LTE module are connected via an asynchronous transceiver UART.

9. The RFID door lock system based on Internet of Things communication and global positioning according to claim 6, characterized in that, The MCU module and the LTE module are connected via an asynchronous transceiver UART.

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