An IoT valve lock based on NB-IOT, RFID and Bluetooth

Abstract

The present invention relates to the technical field of Internet of Things valve locks, and in particular to an Internet of Things valve lock based on NB‑IOT, RFID and Bluetooth. It comprises: a first shell for wrapping the valve handwheel; a second shell, wherein the second shell is provided with an electronic self-popping lock, a microcontroller unit, a Bluetooth module, an RFID reader / writer module unit, an RFID tag, an NB‑IOT communication unit, a solar-powered lithium battery unit and a GPS module unit, and the RFID tag is fixed to the valve handwheel. The present invention realizes the Internet of Things of the valve lock by adding an electronic self-popping lock, a microcontroller unit, a Bluetooth module, an RFID tag, a NB‑IOT communication unit, a solar-powered lithium battery unit and a GPS module unit, thereby realizing dedicated management, remote authorization and control, remote status upload, mobile positioning information feedback and trusted identification function of valve locking based on a smartphone APP.

Description

Technical Field

[0001] The present invention relates to the technical field of Internet of Things valve locks, and in particular to an Internet of Things valve lock based on NB-IOT, RFID and Bluetooth. Background Art

[0002] A valve lock is a manual or electronic device used to lock a valve to ensure that the valve can only be operated under authorized circumstances. NB-IoT (Narrowband Internet of Things), RFID (Radio Frequency Identification) and Bluetooth are three different wireless communication technologies. NB-IoT supports high-reliability data transmission. Remote control management and real-time monitoring can be achieved through the NB-IoT module. RFID tags can be used to store a certain amount of data, while Bluetooth is mainly used for wireless communication within a short distance.

[0003] Most of the valve locks currently on the market only have traditional manual switch lock functions and cannot meet many advanced functions in modern safety supervision requirements, such as dedicated management, remote authorization and control, remote status upload, mobile positioning information feedback, and trusted identification of valves. In addition, existing valve locks are unable to support smartphone operations based on specific business scenarios, limiting their application and development in the Internet of Things environment. Summary of the invention

[0004] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides an Internet of Things valve lock based on NB-IOT, RFID and Bluetooth.

[0005] The technical solution of the present invention is: an IoT valve lock based on NB-IOT, RFID and Bluetooth, comprising:

[0006] The first housing has two parts which are symmetrically distributed and rotatably connected to each other and are used to wrap the valve handwheel;

[0007] The second shell has two parts, which are rotatably connected to the rotating connection of the two first shells. The two second shells are jointly provided with an electronic self-pop-up lock, a microcontroller unit, a Bluetooth module, an RFID reader module unit, an RFID tag, an NB-IOT communication unit, a solar-powered lithium battery unit and a GPS module unit. The RFID tag is fixed to the valve handwheel. The Bluetooth module is used to connect the microcontroller unit with an external smart phone. The NB-IOT communication unit is used for uploading the status of the valve lock and remote control communication. The microcontroller unit is used to realize the business logic function of the whole machine and the low power consumption management function of the whole machine. The RFID reader module unit is used for the data trusted identification communication of the RFID tag. The electronic self-pop-up lock is electrically connected to the microcontroller unit, and the microcontroller unit is electrically connected to the Bluetooth module.

[0008] Further explanation includes:

[0009] A pin lock, arranged on the two first housings, a lock bolt is installed in the pin lock, a plurality of first pins and a plurality of second pins are slidably connected in the pin lock, the first pin is limitedly slidably matched with the adjacent second pin, the first pin and the adjacent second pin are both slidably matched with the lock bolt, an elastic member is fixedly connected between the first pin and the pin lock, a plurality of third pins are slidably connected in the lock bolt, and the third pin is squeezed and matched with the adjacent second pin;

[0010] The key is arranged in the lock bolt, and the third pin is pressed and matched with the key.

[0011] Further explained, the inner wall diameter of the second shell is A, the diameter of the first shell is B, A≥B, and the two second shells are used to wrap the two first shells.

[0012] Further explanation includes:

[0013] A first magnet is arranged in the pin lock, an elastic member is fixedly connected between the first magnet and the pin lock, a second magnet is limitedly slidably connected in the lock bolt and magnetically cooperates with the first magnet, and a third magnet is arranged in the key and magnetically cooperates with the second magnet.

[0014] It is further explained that the magnetic force of the third magnet is greater than the magnetic force of the first magnet, and the third magnet is used to overcome the magnetic force of the first magnet and attract the second magnet.

[0015] It is further explained that the first pin and its elastic member, the second pin and the third pin are not interfered by magnetic attraction.

[0016] Further explanation includes:

[0017] A rotating rod is fixedly connected to the third magnet, and the rotating rod is rotationally connected to the key and is used to adjust the state of the third magnet.

[0018] Further explanation includes:

[0019] A fourth magnet is fixedly connected to the key, a fifth magnet is slidably connected in the lock bolt and magnetically cooperates with the fourth magnet, a fourth pin is limitedly slidably connected in the pin lock and magnetically cooperates with the fifth magnet, and an elastic member is fixedly connected between the fourth pin and the pin lock.

[0020] It is further explained that the fourth magnet, the fifth magnet and the fourth pin are all arranged at an angle relative to the key, and the first pin is located on one side of the lock bolt, and the fourth magnet, the fifth magnet and the fourth pin are all located on the other side of the lock bolt.

[0021] Further explanation includes:

[0022] The spring pieces include a plurality of groups, each group is symmetrically distributed and fixed between adjacent first pins and adjacent second pins.

[0023] Compared with the prior art, the technical effects achieved by the present invention are as follows: 1. The present invention realizes the Internet of Things of the valve lock by adding an electronic self-spring lock, a microcontroller unit, a Bluetooth module, an RFID tag, an NB-IOT communication unit, a solar-powered lithium battery unit and a GPS module unit. An RFID tag is fixed on the valve handwheel, and the tag is read by the RFID reader-writer module unit as a reliable object identification of the lock to the valve, thereby realizing dedicated management, remote authorization and control, remote status upload, mobile positioning information feedback and reliable identification function of valve locking based on a smartphone APP;

[0024] 2. The second magnet is used to clamp the lock bolt and the pin lock, so that the lock bolt can shake but cannot rotate, misleading outsiders to prevent the pin lock from being opened. The third magnet is used to absorb the second magnet, so that the second magnet loses the limit on the lock bolt and the pin lock, so that the lock bolt can be rotated and the pin lock can be opened, thereby improving the safety of the pin lock;

[0025] 3. By arranging the fourth pin obliquely and arranging the fourth pin and the first pin on different sides of the lock bolt, the probe hook is prevented from entering the position of the fourth pin, thereby improving the safety of the pin lock;

[0026] 4. Through the relative sliding of the first pin and the second pin, when the third pin is squeezed, the contact surface of the first pin and the adjacent second pin is first squeezed to the contact surface between the pin lock and the lock bolt, which increases the difficulty of the pin lock being opened by the probe hook, thereby improving the safety of the pin lock and preventing outsiders from touching the valve and affecting the normal use of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 It is a three-dimensional structural cross-sectional view of the second housing and the pin lock of the present invention;

[0029] Figure 3 It is a three-dimensional structural cross-sectional view of the pin lock of the present invention;

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of the first marble, the second marble and the third marble of the present invention;

[0031] Figure 5 It is a three-dimensional structural cross-sectional view of the lock bolt and the key of the present invention;

[0032] Figure 6 It is a schematic diagram of the three-dimensional structure of the fourth magnet, the fifth magnet and the fourth marble of the present invention;

[0033] Figure 7 It is a schematic diagram of the three-dimensional structure of the spring piece of the present invention;

[0034] Figure 8 It is a system diagram of the present invention.

[0035] Reference numerals in the figure: 1-first housing, 2-second housing, 201-electronic self-spring lock, 202-microcontroller unit, 203-Bluetooth module, 204-RFID reader module unit, 3-pin lock, 301-bolt, 302-first pin, 303-second pin, 304-third pin, 4-key, 5-first magnet, 501-second magnet, 502-third magnet, 6-rotating rod, 7-fourth magnet, 701-fifth magnet, 702-fourth pin, 8-shrapnel. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0037] Currently, existing products only have ordinary manual opening and locking functions, and are unable to realize IoT functions such as dedicated personnel, remote authorization, remote control, remote status upload, mobile positioning information, and valve trusted identification under safety supervision requirements. They are also unable to realize smartphone operation functions based on specific business scenarios.

[0038] Example 1: Please refer to Figure 1-Figure 8The present embodiment provides an IoT valve lock based on NB-IOT, RFID and Bluetooth, including: a first shell 1, having two, symmetrically distributed and rotatably connected to each other, for wrapping the valve handwheel; a second shell 2, having two, rotatably connected to the rotating connection of the two first shells 1, the two second shells 2 are jointly provided with an electronic self-spring lock 201, a microcontroller unit 202, a Bluetooth module 203, an RFID reader module unit 204, an RFID tag, an NB-IOT communication unit, a solar-powered lithium battery unit and a GPS module unit, the RFID tag is fixed to the valve handwheel, the electronic self-spring lock 201 is used to realize the remote unlocking control of the IoT lock, the Bluetooth module 203 is used to connect the microcontroller unit 202 with an external smart phone, the NB-IOT communication unit is used for uploading the status of the valve lock and remote control communication, the microcontroller unit 202 is used to realize the business logic function of the whole machine and the low power consumption management function of the whole machine, the RFID reader The module unit 204 is used for the data credible identification communication of the RFID tag, the electronic self-spring lock 201 is electrically connected to the microcontroller unit 202, and the microcontroller unit 202 is electrically connected to the Bluetooth module 203; the pin lock 3 is arranged on the two first shells 1, a lock bolt 301 is installed in the pin lock 3, a plurality of first pins 302 and a plurality of second pins 303 are slidably connected in the pin lock 3, the first pin 302 and the adjacent second pin 303 are limitedly slidably matched, and the first pin 302 and the adjacent second pin 303 are both slidably matched with the lock bolt 301, an elastic member is fixedly connected between the first pin 302 and the pin lock 3, a plurality of third pins 304 are slidably connected in the lock bolt 301, and the third pins 304 are squeezed and matched with the adjacent second pins 303; the key 4 is arranged in the lock bolt 301, and the third pin 304 is squeezed and matched with the key 4, the inner wall diameter of the second shell 2 is A, the diameter of the first shell 1 is B, A≥B, and the two second shells 2 are used to wrap the two first shells 1.

[0039] In the above scheme, it is intended that the valve lock can realize specific business scenarios (personal face scanning recognition, remote authorization, unlocking positioning, unlocking time recording) through Bluetooth communication. Specifically, by adding an electronic self-spring lock 201, a microcontroller unit 202 and a Bluetooth module 203 on the basis of the existing ordinary valve lock, the Internet of Things of the valve lock is realized, so that the operator can transmit the electrical signal to the microcontroller unit 202 through the Bluetooth module 203 through the smart phone APP, and the microcontroller unit 202 controls the opening and closing of the electronic self-spring lock 201, so as to realize specific business scenarios (personal face scanning recognition, remote authorization, unlocking positioning, unlocking time recording) The present invention has the functions of: positioning, unlocking time recording, before using the device, the RFID tag in the second shell 2 is fixed on the valve handwheel, and the RFID tag is fixed on the valve handwheel, and then the card reader module reads the RFID tag to realize the trusted identification of the lock and the valve, and the positioning information identification of the valve is realized through the GPS module unit. The present invention solves the Internet of Things functions of face scanning unlocking recognition, remote authorization, unlocking positioning, unlocking time recording, remote lock status upload, remote valve identification upload, remote valve position information upload, and operation of smart phones in local specific business scenarios for industrial valves in the field of safety supervision.

[0040] The elastic part of the first pin 302 is a spring, and the two second shells 2 wrap the two first shells 1. Even if the pin lock 3 is opened, the electronic self-populated lock 201 will lock the two second shells 2. The Bluetooth module 203 is required to open the electronic self-populated lock 201, so that even if an outsider gets the key 4, he cannot open the two second shells 2 without connecting to the Bluetooth module 203. Therefore, only a special person with authorization can open the two first shells 1, thereby improving the safety of the valve lock.

[0041] Working principle: When the device needs to be used, the valve is placed between the two first shells 1, and then the two first shells 1 are locked using the pin lock 3, and the microcontroller unit 202 is controlled by the Bluetooth module 203, so that the electronic self-spring lock 201 locks the two second shells 2. When the two first shells 1 need to be removed, the operator inserts the key 4 into the lock bolt 301, and the key 4 squeezes all the third pins 304, and the third pins 304 squeeze the adjacent second pins 303 to move, so that the gap between the third pins 304 and the adjacent second pins 303 is aligned with the gap between the lock bolt 301 and the pin lock 3. Then the operator rotates the lock bolt 301 using the key 4 to unlock the pin lock 3. At the same time, the microcontroller unit 202 is controlled by the Bluetooth module 203, so that the electronic self-spring lock 201 unlocks the two second shells 2, so that even if an outsider gets the key 4, he cannot open the two second shells 2 without connecting the Bluetooth module 203, thereby enhancing the security of the pin lock 3.

[0042] Example 2: Please refer to Figure 2-Figure 5 , and also includes: a first magnet 5, which is arranged in the pin lock 3, an elastic member is fixedly connected between the first magnet 5 and the pin lock 3, a second magnet 501 that is magnetically matched with the first magnet 5 is limitedly slidably connected in the lock bolt 301, a third magnet 502 that is magnetically matched with the second magnet 501 is arranged in the key 4, the magnetic force of the third magnet 502 is greater than the magnetic force of the first magnet 5, the third magnet 502 is used to overcome the magnetic force of the first magnet 5 and absorb the second magnet 501, and the first pin 302 and its elastic member, the second pin 303 and the third pin 304 are not interfered by magnetic attraction.

[0043] It also includes: a rotating rod 6 fixed to the third magnet 502 , and the rotating rod 6 is rotatably connected to the key 4 for adjusting the state of the third magnet 502 .

[0044] In the above scheme, in the initial state, the opposite sides of the first magnet 5 and the second magnet 501 are of different poles, and the opposite sides of the second magnet 501 and the third magnet 502 are also of different poles. The elastic part of the first magnet 5 is a spring, and the second magnet 501 is stuck between the lock bolt 301 and the pin lock 3. The diameter of the second magnet 501 is smaller than the aperture of the lock slot where it is located, so that there is a shaking margin between the second magnet 501 and the lock bolt 301 and the pin lock 3.

[0045] Working principle: If an outsider uses the probe hook to squeeze the second magnet 501 to detect the length of the pin, the second magnet 501 moves in the direction of the first magnet 5, and the second magnet 501 can only be stuck between the lock bolt 301 and the pin lock 3. However, due to the small diameter of the second magnet 501, the outsider can shake the lock bolt 301, thereby misleading the outsider and increasing the difficulty of opening the pin lock 3. When the lock bolt 301 needs to be turned, the key 4 is inserted into the lock bolt 301, and the third magnet 502 on the key 4 attracts the second magnet 501, and the second magnet 501 pulls the first magnet 5 and its The elastic part can make the contact surface between the third magnet 502 and the second magnet 501 move to between the lock bolt 301 and the pin lock 3. The operator rotates the lock bolt 301 to open the pin lock 3, thereby improving the safety of the pin lock 3. If it is necessary to pull out the key 4, the operator rotates the lock bolt 301 to reset it, and then rotates the rotating rod 6. The rotating rod 6 drives the third magnet 502 to rotate, so that the third magnet 502 and the second magnet 501 with the same poles are opposite to each other, and the third magnet 502 and the second magnet 501 with the same poles repel each other. The elastic part of the first magnet 5 is reset and drives it and the second magnet 501 to reset.

[0046] Example 3: Please refer to Figure 4 and Figure 6, and also includes: a fourth magnet 7, which is fixedly connected to the key 4, a fifth magnet 701 that is magnetically matched with the fourth magnet 7 is slidably connected in the lock bolt 301, a fourth pin 702 that is magnetically matched with the fifth magnet 701 is limitedly slidably connected in the pin lock 3, an elastic member is fixedly connected between the fourth pin 702 and the pin lock 3, the fourth magnet 7, the fifth magnet 701 and the fourth pin 702 are all inclined relative to the key 4, and the first pin 302 is located on one side of the lock bolt 301, and the fourth magnet 7, the fifth magnet 701 and the fourth pin 702 are all located on the other side of the lock bolt 301.

[0047] In the above scheme, the elastic member between the fourth pin 702 and the pin lock 3 is a compression spring. In the initial state, the elastic member of the fourth pin 702 has no force stored, so that the fourth pin 702 is stuck between the pin lock 3 and the lock bolt 301, and the opposite sides of the fourth magnet 7 and the fifth magnet 701 are the same poles.

[0048] Working principle: when the key 4 is inserted into the lock bolt 301, the fourth magnet 7 and the fifth magnet 701 repel each other with the same poles, the fifth magnet 701 slides and squeezes the fourth pin 702, and the elastic part of the fourth pin 702 is compressed, so that the contact surface between the fifth magnet 701 and the fourth pin 702 moves to align with the contact surface between the pin lock 3 and the lock bolt 301. Only in this way can the lock bolt 301 be rotated. By arranging the fourth pin 702 obliquely and arranging the fourth pin 702 and the first pin 302 on different sides of the lock bolt 301 respectively, the probe hook is prevented from probing into the position of the fourth pin 702, thereby improving the safety of the pin lock 3.

[0049] Example 4: Please refer to Figure 7 , further comprising: spring pieces 8, which have a plurality of groups, each group being symmetrically distributed and fixed between adjacent first pins 302 and adjacent second pins 303.

[0050] Working principle: If an outsider attempts to unlock the lock without using the key 4, the outsider needs to detect the length of each pin in the pin lock 3 without damaging the pin lock 3. The outsider without the key 4 needs to use the probe hook to squeeze all the third pins 304 one by one, and rotate the lock bolt 301 while squeezing the third pins 304. Under normal circumstances, if the lock bolt 301 shakes slightly, it means that the contact surface of the second pin 303 and the adjacent third pin 304 is squeezed to the contact surface between the pin lock 3 and the lock bolt 301. However, the first pin 303 is squeezed to the contact surface between the pin lock 3 and the lock bolt 301. 302 and the adjacent second pin 303 can slide relative to each other. When an outsider squeezes the third pin 304, the contact surface of the first pin 302 and the adjacent second pin 303 will first be squeezed to the contact surface between the pin lock 3 and the bolt 301. This makes the first pin 302 and the second pin 303 slide relative to each other when the bolt 301 rotates, and the spring piece 8 is squeezed and deformed, and the pin lock 3 cannot be opened, thereby improving the safety of the pin lock 3 and preventing outsiders from touching the valve handwheel and affecting the normal use of the valve.

[0051] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An IoT valve lock based on NB-IOT, RFID and Bluetooth, characterized in that: include: The first housing (1) has two parts which are symmetrically distributed and rotatably connected to each other and are used to wrap the valve hand wheel; The second housing (2) has two parts, which are rotatably connected to the rotatable connection of the two first housings (1); the two second housings (2) are jointly provided with an electronic self-spring lock (201), a microcontroller unit (202), a Bluetooth module (203), an RFID reader / writer module unit (204), an RFID tag, an NB-IOT communication unit, a solar-powered lithium battery unit and a GPS module unit; the RFID tag is fixed to the valve hand wheel; the Bluetooth module (203) is used to connect the microcontroller unit (202) with an external smart phone; the NB-IOT communication unit is used for status upload and remote control communication of the valve lock; the microcontroller unit (202) is used to realize the business logic function of the whole machine and the low power consumption management function of the whole machine; the RFID reader / writer module unit (204) is used for data trustworthy identification communication of the RFID tag; the electronic self-spring lock (201) is electrically connected to the microcontroller unit (202); and the microcontroller unit (202) is electrically connected to the Bluetooth module (203); The inner wall diameter of the second shell (2) is A, the diameter of the first shell (1) is B, A≥B, and the two second shells (2) are used to wrap the two first shells (1); It also comprises: a pin lock (3) arranged on the two first shells (1), a lock bolt (301) being installed in the pin lock (3), a plurality of first pins (302) and a plurality of second pins (303) being slidably connected in the pin lock (3), the first pin (302) and the adjacent second pin (303) being limitedly slidably matched, the first pin (302) and the adjacent second pin (303) both being slidably matched with the lock bolt (301), an elastic member being fixedly connected between the first pin (302) and the pin lock (3), a plurality of third pins (304) being slidably connected in the lock bolt (301), the third pins (304) being pressedly matched with the adjacent second pins (303); A key (4) is disposed in the lock bolt (301), and the third pin (304) is pressed and matched with the key (4); It also comprises: a first magnet (5) arranged in the pin lock (3); an elastic member is fixedly connected between the first magnet (5) and the pin lock (3); a second magnet (501) is limitedly slidably connected in the lock bolt (301) and is magnetically matched with the first magnet (5); and a third magnet (502) is arranged in the key (4) and is magnetically matched with the second magnet (501); It also comprises: a rotating rod (6) fixedly connected to the third magnet (502), the rotating rod (6) being rotatably connected to the key (4) and used for adjusting the state of the third magnet (502); It also comprises: a fourth magnet (7) fixedly connected to the key (4); a fifth magnet (701) magnetically matched with the fourth magnet (7) is slidably connected inside the lock bolt (301); a fourth pin (702) magnetically matched with the fifth magnet (701) is limitedly slidably connected inside the pin lock (3); an elastic member is fixedly connected between the fourth pin (702) and the pin lock (3); The fourth magnet (7), the fifth magnet (701) and the fourth pin (702) are all arranged obliquely relative to the key (4), and the first pin (302) is located on one side of the lock bolt (301), and the fourth magnet (7), the fifth magnet (701) and the fourth pin (702) are all located on the other side of the lock bolt (301); The spring pieces (8) have a plurality of groups, each group is symmetrically distributed and fixed between adjacent first pins (302) and adjacent second pins (303); The second magnet (501) is stuck between the lock bolt (301) and the pin lock (3), and the diameter of the second magnet (501) is smaller than the hole diameter of the lock slot in which it is located, so that there is a swing margin between the second magnet (501) and the lock bolt (301) and the pin lock (3).

2. The IoT valve lock based on NB-IOT, RFID and Bluetooth according to claim 1, characterized in that: The magnetic force of the third magnet (502) is greater than the magnetic force of the first magnet (5), and the third magnet (502) is used to overcome the magnetic force of the first magnet (5) and attract the second magnet (501).

3. The IoT valve lock based on NB-IOT, RFID and Bluetooth according to claim 1, characterized in that: The first pin (302) and its elastic member, the second pin (303) and the third pin (304) are not interfered by magnetic attraction.

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