Passive internet of things close-range energy replenishment device

Abstract

The utility model relates to passive internet of things energy supplementing technical field, and disclose a kind of passive internet of things short-range energy supplementing device, including the mobile energy supplementing device of inside omnidirectional antenna and with autonomous mobile function, fixed mounting is equipped with fixed seat on mobile energy supplementing device upper portion, fixed mounting is equipped with fixed frame on fixed seat upper portion, energy supplementing power supply is equipped in fixed frame, vertical bearing column is rotatably connected on fixed frame upper portion, vertical bearing column one side is equipped with horizontal bearing beam, the end away from vertical bearing column of horizontal bearing beam is equipped with mounting plate, wireless energy supplementing module and data reading module are fixedly installed on mounting plate. In the utility model, by being equipped with energy supplementing power supply, wireless energy supplementing module and data reading module on mobile energy supplementing device, mobile energy supplementing device can be moved to passive terminal position, and energy supplementing is carried out to passive terminal, prevent passive terminal and internet of things disconnection.

Description

Technical Field

[0001] This utility model relates to the field of passive Internet of Things (IoT) power replenishment technology, specifically a passive IoT short-range power replenishment device. Background Technology

[0002] Passive IoT, simply put, is the Internet of Things that "does not require electricity." Thousands of digital tags do not need batteries and can work by absorbing environmental energy. They are low-cost and durable, equipped with 5G-A networks, and can connect a massive number of devices at the same time, with positioning accuracy down to the meter level.

[0003] A search revealed a patent, CN106961715A, which discloses a near-field passive wake-up device and method for the Internet of Things (IoT). The device includes a near-field wake-up transmitting unit and a near-field wake-up receiving unit. The near-field wake-up receiving unit is entirely passive, consuming no current. When wake-up is required, the transmitting unit sends a single-frequency pulse-coded excitation signal through a wake-up circuit. After passing through a matching circuit, the signal is transmitted via a low-frequency coil. The receiving unit matches the resonant point and collects the electromagnetic wave energy. After passing through a CW (Cockcroft-Walton) voltage doubler rectifier circuit, the energy is converted into a DC signal pulse. After amplitude limiting and shaping, the pulse signal wakes up the MCU (microprocessor) through edge or level triggering, thus waking up IoT nodes. The wake-up signal transmitted by the transmitting unit has a characteristic code, greatly reducing the probability of false wake-ups and enhancing the device's anti-interference capability. Furthermore, the near-field wake-up receiving unit is entirely passive, with zero power consumption in the receiving wake-up circuit. This invention has wide applications in low-power IoT applications.

[0004] The aforementioned patents have significant beneficial effects, but in practical application, they still have the following shortcomings:

[0005] Passive Internet of Things (IoT) is widely used in logistics, document management, and equipment monitoring due to its advantages of easy implementation and low cost. However, since the terminal energy of passive IoT is replenished through environmental radio waves, some passive terminals cannot replenish enough energy due to various reasons such as installation location and obstruction, resulting in the inability to transmit wireless signals and communicate with the passive IoT platform. For example, the passive wake-up device in the aforementioned comparative document has an obstacle that prevents energy replenishment between it and the passive terminal, thus causing the passive terminal to malfunction. Therefore, there is an urgent need in the field to improve the short-range power replenishment device for passive IoT to overcome the shortcomings of the existing technology. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a passive IoT short-range power replenishment device, which facilitates power replenishment for passive terminals and prevents the passive terminals from losing connection with the IoT.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a passive IoT short-range power replenishment device, comprising a mobile power replenishment device with an internal omnidirectional antenna and autonomous movement function, a fixed base fixedly installed on the upper part of the mobile power replenishment device, a fixed frame fixedly installed on the upper part of the fixed base, a power replenishment power supply inside the fixed frame, a vertical support column rotatably connected to the upper part of the fixed frame, a horizontal support beam provided on one side of the vertical support column, an installation plate provided at the end of the horizontal support beam away from the vertical support column, and a wireless power replenishment module and a data reading module fixedly installed on the installation plate;

[0008] The wireless power replenishment module, in conjunction with the power supply, is used to replenish the power of the passive terminal, and the data reading module is used for information transmission between the passive terminal and the Internet of Things platform.

[0009] Preferably, a movable seat is slidably connected to the side of the vertical support column, and a movable groove adapted to the movable seat is opened through one side of the vertical support column. A first drive screw threadedly connected to the movable seat is rotatably connected in the movable groove, and a first drive motor for driving the first drive screw to rotate is fixedly installed at the upper end of the vertical support column.

[0010] Preferably, an extension beam is inserted into one end of the horizontal bearing beam away from the vertical bearing column, the mounting plate is located at the end of the horizontal bearing beam away from the vertical bearing column, a second drive motor is fixedly installed on one side of the movable seat, and a second drive screw is fixedly installed at the output end of the second drive motor, which passes through the movable seat and is threadedly connected to the extension beam.

[0011] Preferably, a fourth drive motor is fixedly installed on the upper part of the end of the extension beam away from the vertical bearing column, and the fourth drive motor is used to drive the mounting plate to rotate horizontally.

[0012] Preferably, a telescopic device with a telescopic effect is fixedly installed at the lower part of the end of the extension beam away from the vertical bearing column, and the output end of the fourth drive motor is fixedly installed at the upper part of the telescopic device. The telescopic device is used to drive the mounting plate to move up and down.

[0013] Preferably, a rotating frame is fixedly installed at the lower end of the telescopic device, the upper part of the mounting plate is rotatably connected to the rotating frame, and a third drive motor for driving the mounting plate to rotate is fixedly installed on one side of the rotating frame.

[0014] Preferably, a fifth drive motor is fixedly installed inside the fixing frame, and the fifth drive motor is used to drive the vertical support column to rotate.

[0015] Preferably, the upper part of the fixed base is provided with a plurality of symmetrical sliding blocks, the upper part of the sliding blocks is provided with a clamping plate adapted to the power supply, the upper part of the fixed base is provided with a sliding groove adapted to the sliding blocks, and an adjusting threaded rod extending into the sliding groove is rotatably connected through the side of the fixed base. The adjusting threaded rod is used to drive the two sliding blocks to move synchronously towards each other or away from each other, and a limit nut is threadedly connected to the side of the adjusting threaded rod.

[0016] To address the shortcomings of existing technologies, this utility model provides a passive IoT short-range power replenishment device, overcoming the deficiencies of existing technologies. The beneficial effects of this utility model are as follows:

[0017] 1. In this utility model, by equipping the mobile power supply, the wireless power supply module and the data reading module on the mobile power supply device, the device can be moved to the location of the passive terminal and power the passive terminal, thus preventing the passive terminal from losing connection with the Internet of Things.

[0018] 2. In this utility model, by setting a first drive motor, a second drive motor, a third drive motor, a fourth drive motor, a telescopic device, and a fifth drive motor, the wireless power replenishment module can be adjusted in multiple directions, thereby improving the applicability of the power replenishment device to passive terminals.

[0019] 3. In this utility model, rotating the adjusting threaded rod can drive the two clamping plates to move synchronously towards or away from each other, which facilitates the installation or quick replacement of the power supply.

[0020] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0021] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a cross-sectional structural diagram of the fixing frame and other components in this utility model;

[0024] Figure 3 for Figure 1 Enlarged structural diagram at point A in the middle;

[0025] Figure 4 for Figure 2Enlarged structural diagram at point B;

[0026] Figure 5 for Figure 2 Enlarged structural diagram at point C;

[0027] Figure 6 This is a schematic diagram of the energy replenishment logic in this utility model.

[0028] In the diagram: 1. Mobile power supply device; 2. Fixed base; 3. Fixed frame; 4. Power supply; 5. Vertical support column; 6. Horizontal support beam; 7. Mounting plate; 8. Wireless power supply module; 9. Data reading module; 10. Mobile base; 11. Mobile groove; 12. First drive screw; 13. First drive motor; 14. Extension beam; 15. Second drive motor; 16. Second drive screw; 17. Rotating frame; 18. Third drive motor; 19. Fourth drive motor; 20. Telescopic device; 21. Fifth drive motor; 22. Sliding block; 23. Clamping plate; 24. Sliding groove; 25. Adjusting threaded rod; 26. Limit nut. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Please see Figures 1-6A passive IoT short-range power supply device includes a mobile power supply device 1 with an omnidirectional antenna and autonomous movement function. A fixed base 2 is fixedly installed on the upper part of the mobile power supply device 1. A fixed frame 3 is fixedly installed on the upper part of the fixed base 2. A power supply 4 is installed inside the fixed frame 3. A vertical support column 5 is rotatably connected to the upper part of the fixed frame 3. A horizontal support beam 6 is provided on one side of the vertical support column 5. A mounting plate 7 is provided at the end of the horizontal support beam 6 away from the vertical support column 5. A wireless power supply module 8 and a data reading module 9 are fixedly installed on the mounting plate 7. The wireless power supply module 8, in conjunction with the power supply 4, is used to power the passive terminal. The data reading module 9 is used for information transmission between the passive terminal and the IoT platform. A movable base 10 is slidably connected to the side of the vertical support column 5. A movable slot 11 adapted to the movable base 10 is opened through one side of the vertical support column 5. A first drive screw 12, which is threadedly connected to the movable base 10, is rotatably connected in the movable slot 11. A first drive motor 13 for driving the first drive screw 12 to rotate is fixedly installed at the upper end of the vertical support column 5. The horizontal support beam 6 is away from the vertical support column. An extension beam 14 is inserted into one end of the support column 5. The mounting plate 7 is located at the end of the horizontal support beam 6 away from the vertical support column 5. A second drive motor 15 is fixedly installed on one side of the movable seat 10. A second drive screw 16, which passes through the movable seat 10 and is threadedly connected to the extension beam 14, is fixedly installed at the output end of the second drive motor 15. A fourth drive motor 19 is fixedly installed on the upper part of the end of the extension beam 14 away from the vertical support column 5. The fourth drive motor 19 is used to drive the mounting plate 7 to rotate horizontally. A telescopic device 20 with a telescopic effect is fixedly installed on the lower part of the end of the extension beam 14 away from the vertical support column 5. The output end of the fourth drive motor 19 is fixedly installed on the upper part of the telescopic device 20. The telescopic device 20 is used to drive the mounting plate 7 to move up and down. A rotating frame 17 is fixedly installed at the lower end of the telescopic device 20. The upper part of the mounting plate 7 is rotatably connected to the rotating frame 17. A third drive motor 18, which is used to drive the mounting plate 7 to rotate, is fixedly installed on one side of the rotating frame 17. A fifth drive motor 21 is fixedly installed inside the fixed frame 3. The fifth drive motor 21 is used to drive the vertical support column 5 to rotate.

[0032] Specific implementation method in this embodiment: The mobile power replenishment device 1 mentioned above can be an AGV or a drone. In this embodiment, an AGV is used as an example. The mobile power replenishment device 1 is equipped with:

[0033] 4G / 5G / WIFI communication module: This module achieves bidirectional data interaction through an omnidirectional antenna, receives the activity area range, lost terminal number and task instructions issued by the platform, and simultaneously transmits back information and location data of the undetected passive terminal;

[0034] IoT transceiver module: A dedicated module equipped with an omnidirectional antenna, responsible for radio frequency interaction with passive terminals;

[0035] Path planning module: This module integrates LiDAR scanning data with platform preset area information, builds an environmental map using SLAM technology and updates it in real time. During the task execution phase, it plans the path in two steps: first, it calculates the optimal route from the current location to the designated area, avoiding static obstacles; second, it generates a refueling sequence based on the location of undetected terminals, thus shortening the total travel distance.

[0036] Traversal query module: Following the priority logic of "weak signal area → medium signal area → strong signal area", the mobile power replenishment device 1 is controlled to scan the passive terminals sequentially. Intelligent filtering is achieved by comparing the terminal numbers. For terminals already identified by the platform, only the status is recorded and no data is returned. For terminals not yet checked, complete information is collected and the location coordinates are marked. This module has a built-in signal strength detection unit, which can distinguish the signal zone to which the terminal belongs in real time to ensure accurate delivery of power replenishment resources.

[0037] Laser navigation subsystem: Includes hardware such as lidar, inertial measurement unit (IMU) and ultrasonic sensors. It acquires environmental point cloud data through 360-degree rotation scanning and achieves centimeter-level positioning by combining SLAM algorithm;

[0038] Motion control module: Converts path planning results into drive commands to control the steering mechanism and drive motor of the mobile energy replenishment device 1 to achieve precise movement;

[0039] Obstacle avoidance safety module: integrates infrared sensors and collision detection switches. When a dynamic obstacle is detected within the threshold range, a deceleration or stop command is immediately triggered.

[0040] The power supply 4 is electrically connected to the wireless power supply module 8 and the data reading module 9. The power supply 4 has a dedicated module designed for the energy collection needs of passive terminals. The module adopts parabolic energy focusing technology. The data reading module 9 is dedicated to reading data from passive terminals.

[0041] This embodiment includes the following implementation steps:

[0042] Step 1: The IoT platform delineates areas based on the distribution of passive terminals, constrains the activity area of ​​the mobile power supply device 1 through location information, and divides the coverage of IoT wireless signals in the designated areas according to signal strength.

[0043] Step 2: When the IoT platform cannot read the information of a certain IoT passive terminal, the platform sends an instruction to the mobile power supply device 1 and sends the found IoT terminal passive number to the mobile power supply device 1, and assigns the mobile power supply device 1 to go to the designated area to read the IoT passive terminal that cannot be contacted. Several power supply 4 are installed on the upper part of the fixed base 2. The power supply 4 is a chemical battery.

[0044] Step 3: After the mobile power supply device 1 arrives at the designated area, it first searches for the IoT passive terminals in the designated area according to the order of IoT wireless signal from weak to strong, and in conjunction with the data reading module 9. If the IoT passive terminal has been found by the platform, its IoT information is not sent to the platform. If the IoT passive terminal has not been found by the IoT platform, its information is sent to the platform. This process is repeated until all IoT passive terminal information not found by the IoT platform is sent to the platform, and the location of the IoT passive terminal module not found by the IoT platform is recorded.

[0045] When reading data from a passive IoT terminal, the device moves via a mobile power supply device 1 and identifies the passive terminal using an identification device on the mobile power supply device 1 to determine its position and orientation. The data reading module 9 then reads the data from the passive terminal.

[0046] Step 4: After completing the information query of the IoT terminal, the mobile power replenishment device 1 plans its route and stops in sequence near IoT terminals that are not directly queried by the IoT platform to wirelessly replenish power for a certain period of time, so that the IoT platform can directly complete the query next time.

[0047] When replenishing power to the passive terminal, the position of the wireless replenishment module 8 is adjusted by determining the replenishment location of the passive terminal. The first drive motor 13 is activated, and its output drives the first drive screw 12 to rotate. When the first drive screw 12 rotates, it drives the movable seat 10 to move within the movable slot 11. The movable seat 10 then moves the horizontal support beam 6, adjusting the height of the wireless replenishment module 8. The second drive motor 15 is activated, and its output drives the second drive screw 16 to rotate. When the second drive screw 16 rotates, it drives the extension beam 14, which is inserted into one end of the horizontal support beam 6, to move, adjusting the horizontal position of the wireless replenishment module 8. The fifth drive motor 21 drives the vertical support column 5 to rotate, allowing for a wide range of orientation adjustment of the wireless power supply module 8. The fourth drive motor 19 is activated, driving the telescopic device 20 to rotate, which in turn allows for a small range of orientation adjustment of the wireless power supply module 8. The third drive motor 18 is activated, allowing for angle adjustment of the wireless power supply module 8. The telescopic device 20, an electric telescopic rod, allows for low-position height adjustment of the wireless power supply module 8. This multi-directional adjustment of the wireless power supply module 8 enhances the applicability of the power supply device to passive terminals.

[0048] Example 2

[0049] Please see Figure 5This embodiment includes the above embodiment, and further includes: a plurality of symmetrical sliding blocks 22 are provided on the upper part of the fixed base 2, a clamping plate 23 adapted to the power supply 4 is provided on the upper part of the sliding block 22, a sliding groove 24 adapted to the sliding block 22 is provided on the upper part of the fixed base 2, and an adjusting threaded rod 25 extending into the sliding groove 24 is rotatably connected through the side of the fixed base 2, the adjusting threaded rod 25 is used to drive the two sliding blocks 22 to move synchronously towards each other or away from each other, and a limit nut 26 is threadedly connected to the side of the adjusting threaded rod 25.

[0050] In this embodiment, the power supply 4 is placed between two clamping plates 23. By rotating the adjusting threaded rod 25, the threads of the adjusting threaded rod 25 on the inner side of the sliding groove 24 are symmetrical and opposite. When the adjusting threaded rod 25 rotates, it drives two sliding blocks 22 to move synchronously towards each other in the sliding groove 24. The sliding blocks 22 drive the clamping plates 23 to move, and the two clamping plates 23 clamp and fix the power supply 4. The locking limit nut 26 limits and fixes the position of the clamping plates 23, and connects the power supply 4 to the wireless power supply module 8 by wire plug-in connection, which facilitates the installation or quick replacement of the power supply 4.

[0051] All of the electrical products mentioned above can be purchased from the market. They are mature technologies and have been fully disclosed, so they will not be repeated in the instruction manual. All of the electrical products mentioned above are equipped with power connection cords, and they are electrically connected to the main controller, chemical power source and power supply 4 in the mobile power supply device 1 through the power cords. The main controller can be a conventional known device such as a computer that plays a control role.

[0052] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A passive Internet of Things (IoT) short-range power replenishment device, characterized in that, The device includes a mobile power supply device (1) with an omnidirectional antenna and autonomous movement function. A fixed base (2) is fixedly installed on the upper part of the mobile power supply device (1). A fixed frame (3) is fixedly installed on the upper part of the fixed base (2). A power supply (4) is provided inside the fixed frame (3). A vertical support column (5) is rotatably connected to the upper part of the fixed frame (3). A horizontal support beam (6) is provided on one side of the vertical support column (5). A mounting plate (7) is provided at the end of the horizontal support beam (6) away from the vertical support column (5). A wireless power supply module (8) and a data reading module (9) are fixedly installed on the mounting plate (7). The wireless power supply module (8) works with the power supply (4) to power the passive terminal, and the data reading module (9) is used for information transmission between the passive terminal and the Internet of Things platform.

2. The passive IoT short-range power replenishment device according to claim 1, characterized in that, The vertical support column (5) is slidably connected to a movable seat (10) on its side. A movable groove (11) adapted to the movable seat (10) is opened through one side of the vertical support column (5). A first drive screw (12) threadedly connected to the movable seat (10) is rotatably connected in the movable groove (11). A first drive motor (13) for driving the first drive screw (12) to rotate is fixedly installed at the upper end of the vertical support column (5).

3. The passive IoT short-range power replenishment device according to claim 2, characterized in that, An extension beam (14) is inserted into one end of the horizontal bearing beam (6) away from the vertical bearing column (5). The mounting plate (7) is located at the end of the horizontal bearing beam (6) away from the vertical bearing column (5). A second drive motor (15) is fixedly installed on one side of the movable seat (10). A second drive screw (16) is fixedly installed at the output end of the second drive motor (15), passing through the movable seat (10) and threadedly connected to the extension beam (14).

4. The passive IoT short-range power replenishment device according to claim 3, characterized in that, A fourth drive motor (19) is fixedly installed on the upper part of the end of the extension beam (14) away from the vertical bearing column (5). The fourth drive motor (19) is used to drive the mounting plate (7) to rotate horizontally.

5. A passive IoT short-range power replenishment device according to claim 4, characterized in that, The lower part of the end of the extension beam (14) away from the vertical bearing column (5) is fixedly installed with a telescopic device (20) with a telescopic effect. The output end of the fourth drive motor (19) is fixedly installed on the upper part of the telescopic device (20). The telescopic device (20) is used to drive the mounting plate (7) to move up and down.

6. A passive IoT short-range power replenishment device according to claim 5, characterized in that, The telescopic device (20) has a rotating frame (17) fixedly installed at the lower end of its telescopic extension. The upper part of the mounting plate (7) is rotatably connected to the rotating frame (17). A third drive motor (18) for driving the mounting plate (7) to rotate is fixedly installed on one side of the rotating frame (17).

7. A passive IoT short-range power replenishment device according to claim 1, characterized in that, The fifth drive motor (21) is fixedly installed inside the fixed frame (3), and the fifth drive motor (21) is used to drive the vertical support column (5) to rotate.

8. A passive IoT short-range power replenishment device according to claim 1, characterized in that, The upper part of the fixed base (2) is provided with several symmetrical sliding blocks (22). The upper part of the sliding block (22) is provided with a clamping plate (23) adapted to the power supply (4). The upper part of the fixed base (2) is provided with a sliding groove (24) adapted to the sliding block (22). The side of the fixed base (2) is rotatably connected to an adjusting threaded rod (25) with one end extending into the sliding groove (24). The adjusting threaded rod (25) is used to drive the two sliding blocks (22) to move synchronously towards each other or away from each other. The side of the adjusting threaded rod (25) is threaded with a limit nut (26).

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