An indoor positioning system and positioning method based on UWB technology

Abstract

The present invention belongs to the field of indoor positioning technology, and in particular to an indoor positioning system and positioning method based on UWB technology. In view of the problems in the existing technology of poor locking performance of objects to be positioned and the troublesome problem of positioning system installation, the following scheme is proposed, which includes a positioning mechanism, a terminal, an APP module, a fixing mechanism and a power supply device. The bottom of the positioning mechanism is fixedly connected to a central processing unit and a database, and the central processing unit is electrically connected to a camera and an LED control module. The positioning mechanism is movably connected to the fixing mechanism. The present invention facilitates the installation of the positioning mechanism by inserting an extension rod into an extension tube. At the same time, the terminal sends and receives signals to a Bluetooth module through the APP module, and the Bluetooth module sends an electrical signal to the positioning mechanism, thereby realizing the positioning of the object.

Description

Technical Field

[0001] The present invention relates to the field of indoor positioning technology, and in particular to an indoor positioning system and positioning method based on UWB technology. Background Art

[0002] UWB technology has the advantages of low system complexity, low transmitted signal power spectrum density, insensitivity to channel fading, low interception capability, and high positioning accuracy. It is especially suitable for high-speed wireless access in dense multipath places such as indoors.

[0003] In the existing technology, the indoor positioning system based on UWB technology has poor locking performance on the object to be positioned during positioning, and the positioning system is more troublesome to install. Therefore, we propose an indoor positioning system and positioning method based on UWB technology. Summary of the Invention

[0004] Based on the background technology, there are technical problems that the indoor positioning system based on UWB technology has poor locking performance on the object to be positioned during positioning, and the positioning system is more troublesome to install. The present invention proposes an indoor positioning system and positioning method based on UWB technology.

[0005] The present invention proposes an indoor positioning system based on UWB technology, which includes a positioning mechanism, a terminal, a fixing mechanism and a power supply device. The bottom of the positioning mechanism is fixedly connected to a central processing unit and a database, and the central processing unit is electrically connected to a camera and an LED control module. The positioning mechanism is movably connected to the fixing mechanism.

[0006] Preferably, the top of the positioning mechanism is symmetrically fixedly connected to an extension rod, and there are two extension rods, and the fixing mechanism is symmetrically fixedly connected to an extension tube adapted to the extension rod, and the two extension tubes are slidably connected to a sliding plate, and the two sliding plates extend to the outside of the extension tube and are fixedly connected to a threaded ring on one side away from each other, and the top inner wall of the fixing mechanism is symmetrically rotatably connected to a gear, and there are two gears, and the bottoms of the two gears are fixedly connected to a threaded column, and the outer wall of the threaded column is threadedly connected to the inner wall of the threaded ring, and the two extension tubes are fixedly connected to a stabilizing tube on the other side away from each other, and the two stabilizing tubes are slidably connected to a rack, and the front side of the rack is connected to the The gears are engaged, and the inner walls on the left and right sides of the fixing mechanism are provided with sliding grooves, and the two sliding grooves are slidably connected to trapezoidal plates, the bottom inner wall of the fixing mechanism is slidably connected to an L-shaped plate, and the ends of the two L-shaped plates away from each other are rotatably connected to matching rods, and the top of the matching rod is rotatably connected to the bottom of the trapezoidal plate, the inner walls on the sides where the two extension tubes are close to each other are fixedly connected to grinding plates, and the sides where the two L-shaped plates are close to each other are fixedly connected to T-shaped plates, and the ends of the two T-shaped plates close to each other extend into the two extension tubes respectively and are in movably contact with the sides of the two extension rods away from each other. The fixing mechanism facilitates the installation of the positioning mechanism and increases the stability.

[0007] Preferably, the inner walls of the two stabilizing tubes on the side close to each other are fixedly connected with return springs, the ends of the two return springs away from each other are respectively fixedly connected to the ends of the two racks close to each other, and the top inner walls of the two extension tubes are fixedly connected with control springs, the bottom of the control spring is fixedly connected to the top of the sliding plate, and the elastic force of the return spring facilitates the return of the rack, and the elastic force of the control spring facilitates the movement of the sliding plate.

[0008] Preferably, the ends of the two racks that are away from each other are both rotatably connected to a rotating wheel, and the inclined surface of the trapezoidal plate is in active contact with the rotating wheel. When the rack drives the rotating wheel to contact the inclined surface of the trapezoidal plate, it is convenient to drive the trapezoidal plate to move.

[0009] Preferably, the terminal is electrically connected to a terminal processor and an APP module, a Bluetooth module is provided at the bottom of the positioning mechanism, and the Bluetooth module is signal-connected to the APP module. As the threaded ring moves, the threaded column is conveniently guided to rotate through the thread.

[0010] Preferably, the central processor captures the object through a camera and locates the object by comparing it with a database.

[0011] Preferably, a USB connection port is provided on the right side of the positioning mechanism and the left side of the power supply device, and the two USB connection ports are connected by a data cable.

[0012] Preferably, the LED control module is electrically connected to an LED indicator light.

[0013] The present invention also proposes an indoor positioning method based on UWB technology, including the indoor positioning system based on UWB technology, and further comprising the following steps:

[0014] S1: Install the positioning mechanism, and the power supply equipment supplies power to the positioning mechanism;

[0015] S2: The terminal sends and receives signals to the Bluetooth module through the APP module. At the same time, the Bluetooth module sends an electrical signal to the positioning mechanism to guide the positioning mechanism to confirm the object to be located. At the same time, the positioning mechanism starts the camera through the central processor to search for the object to be located. At the same time, the central processor compares the object captured by the camera with the object data in the database. When the captured object is consistent with the data in the database, the object is located.

[0016] Preferably, the step S1 specifically includes:

[0017] S11: First, the extension rod is inserted into the extension tube. As the extension rod is inserted, the extension rod contacts the sliding plate and drives the sliding plate to slide;

[0018] S12: As the sliding plate slides, the sliding plate drives the threaded ring to move. When the threaded ring moves, the threaded ring drives the threaded column to rotate. As the threaded column rotates, the threaded column drives the gear to rotate. When the gear rotates, the gear drives the rack to move.

[0019] S13: At the same time, as the rack moves, the rack drives the rotating wheel to contact the inclined surface of the trapezoidal plate. At this time, the rotating wheel drives the trapezoidal plate to move through the inclined surface of the trapezoidal plate. The trapezoidal plate drives the L-shaped plate to move by pushing the matching rod. When the L-shaped plate moves, the L-shaped plate drives the T-shaped plate to move and cooperate with the grinding plate, and then clamps the extension rod to complete the installation of the positioning mechanism.

[0020] The beneficial effects of the present invention are:

[0021] 1. Insert the extension rod into the extension tube. The extension rod contacts the sliding plate and drives the sliding plate to slide. When the sliding plate slides, the sliding plate drives the threaded column to rotate through the threaded ring.

[0022] 2. When the threaded column rotates, the threaded column drives the rack to move through the gear. At the same time, as the rack moves, the rack drives the trapezoidal plate to move through the rotating wheel and the inclined surface of the trapezoidal plate. The trapezoidal plate drives the L-shaped plate to move by pushing the matching rod. When the L-shaped plate moves, the L-shaped plate drives the T-shaped plate to move and cooperate with the grinding plate, and then clamps the extension rod, which facilitates the installation of the positioning mechanism.

[0023] 3. After the positioning mechanism is installed, the power supply equipment supplies power to the positioning mechanism. At this time, the terminal sends and receives signals to the Bluetooth module through the APP module. At the same time, the Bluetooth module sends an electrical signal to the positioning mechanism to guide the positioning mechanism to confirm the object to be located. At the same time, the positioning mechanism searches for the object to be located through the central processor and the camera, and compares the object data in the database to achieve the purpose of locating the object.

[0024] By inserting the extension rod into the extension tube, the positioning mechanism is easily installed. At the same time, the terminal sends and receives signals to the Bluetooth module through the APP module, and the Bluetooth module sends electrical signals to the positioning mechanism to achieve the purpose of positioning the object. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural block diagram of an indoor positioning method based on UWB technology proposed in the present invention;

[0026] Figure 2 This is a structural diagram of a fixing mechanism of an indoor positioning system based on UWB technology proposed by the present invention;

[0027] Figure 3 This is a structural diagram of a sliding plate, gear, threaded column and threaded ring of a fixing mechanism of an indoor positioning system based on UWB technology proposed by the present invention;

[0028] Figure 4 This is a three-dimensional diagram of the structure of the rack and the rotating wheel of the fixed mechanism of the indoor positioning system based on UWB technology proposed by the present invention;

[0029] Figure 5 This is a structural diagram of a positioning mechanism of an indoor positioning system based on UWB technology proposed by the present invention;

[0030] Figure 6 This is a schematic diagram of the terminal structure of an indoor positioning system based on UWB technology proposed by the present invention.

[0031] In the figure: 1 positioning mechanism, 2 terminal, 3 APP module, 4 central processing unit, 5 database, 6 power supply equipment, 7 LED control module, 8 fixing mechanism, 9 extension tube, 10 grinding plate, 11 sliding plate, 12 extension rod, 13 control spring, 14 stabilizing tube, 15 return spring, 16 rack, 17 rotating wheel, 18 gear, 19 threaded column, 20 threaded ring, 21 slide groove, 22 trapezoidal plate, 23 matching rod, 24 L-type plate, 25 T-type plate, 26 camera, 27 LED indicator light, 28 Bluetooth module, 29 terminal processor. DETAILED DESCRIPTION

[0032] The present invention will be further explained below with reference to specific embodiments.

[0033] Example 1

[0034] refer to Figure 1-6 In this embodiment, an indoor positioning system based on UWB technology is proposed, including a positioning mechanism 1, a terminal 2, a fixing mechanism 8 and a power supply device 6. The bottom of the positioning mechanism 1 is fixedly connected to a central processing unit 4 and a database 5. The database 5 has data recorded in advance in the library. The recorded data includes the color and shape of the object to be located, and the central processing unit 4 is electrically connected to a camera 26 and an LED control module 7. The central processing unit 4 is a chip that sends signals to the camera 26 and the LED control module 7. The positioning mechanism 1 is movably connected to the fixing mechanism 8.

[0035] In this embodiment, the top of the positioning mechanism 1 is symmetrically fixedly connected to an extension rod 12, and there are two extension rods 12. The fixing mechanism 8 is symmetrically fixedly connected to an extension tube 9 that is compatible with the extension rod 12. The two extension tubes 9 are slidably connected to a sliding plate 11. The two sliding plates 11 extend to the outside of the extension tube 9 on the side away from each other and are fixedly connected to a threaded ring 20. The top inner wall of the fixing mechanism 8 is symmetrically rotatably connected to a gear 18, and there are two gears 18. The bottoms of the two gears 18 are fixedly connected to a threaded column 19, and the outer wall of the threaded column 19 is threadedly connected to the inner wall of the threaded ring 20. The two extension tubes 9 are fixedly connected to a stabilizing tube 14 on the side away from each other. The rack 16 is slidably connected to the inside of the two stabilizing tubes 14. The front side of the rack 16 is meshed with the gear 18, and the inner walls on the left and right sides of the fixing mechanism 8 are provided with a slide groove 21, and the two slide grooves 21 are slidably connected with a trapezoidal plate 22, and the bottom inner wall of the fixing mechanism 8 is slidably connected with an L-shaped plate 24, and the ends of the two L-shaped plates 24 away from each other are rotatably connected to the matching rod 23, and the top of the matching rod 23 is rotatably connected to the bottom of the trapezoidal plate 22, and the inner walls of the two extension tubes 9 on the side close to each other are fixedly connected with the grinding plate 10, and the sides of the two L-shaped plates 24 close to each other are fixedly connected with a T-shaped plate 25, and the ends of the two T-shaped plates 25 close to each other extend into the two extension tubes 9 respectively and are in active contact with the sides of the two extension rods 12 away from each other, so that the fixing mechanism 8 is convenient for positioning the positioning mechanism 1 The installation increases the stability; the inner walls of the two stabilizing tubes 14 on the side close to each other are fixedly connected with a return spring 15, and the ends of the two return springs 15 away from each other are respectively fixedly connected to the ends of the two racks 16 close to each other, and the top inner walls of the two extension tubes 9 are fixedly connected with a control spring 13, and the bottom of the control spring 13 is fixedly connected to the top of the sliding plate 11. The elastic force of the return spring 15 facilitates the return of the rack 16, and the elastic force of the control spring 13 facilitates the movement of the sliding plate 11; the ends of the two racks 16 away from each other are rotatably connected to the runner 17, and the inclined surface of the trapezoidal plate 22 is in active contact with the runner 17, when the rack 16 drives the runner 17 to contact the inclined surface of the trapezoidal plate 22 When the threaded ring 20 moves, the threaded column 19 is conveniently guided to rotate through the thread; the central processing unit 4 captures the object through the camera 26 and locates the object by comparing it with the database 5; USB connection ports are provided on the right side of the positioning mechanism 1 and the left side of the power supply device 6, and the two USB connection ports are connected by a data cable; the LED control module 7 is electrically connected to the LED indicator 27.

[0036] In this embodiment, during actual operation, the extension rod 12 is first inserted into the extension tube 9. As the extension rod 12 is inserted, the extension rod 12 contacts the sliding plate 11 and drives the sliding plate 11 to slide. When the sliding plate 11 slides, the sliding plate 11 drives the threaded ring 20 to move. When the threaded ring 20 moves, the threaded ring 20 drives the threaded column 19 to rotate through the internal thread and the thread on the outer wall of the threaded column 19. When one side is fixed, the thread can drive the other side to rotate through the thread. As the threaded column 19 rotates, the threaded column 19 drives the gear 18 to rotate. When the gear 18 rotates, the gear 18 drives the rack 16 to move. At the same time, as the rack 16 moves, the rack 16 drives the runner 17 to contact the inclined surface of the trapezoidal plate 22. At this time, the runner 17 drives the trapezoidal plate 22 to move through the inclined surface of the trapezoidal plate 22. The trapezoidal plate 22 is moved by Push the matching rod 23 to drive the L-shaped plate 24 to move. When the L-shaped plate 24 moves, the L-shaped plate 24 drives the T-shaped plate 25 to move and cooperate with the grinding plate 10, and then clamps the extension rod 12, which facilitates the installation of the positioning mechanism 1. As the positioning mechanism 1 is installed, the power supply device 6 supplies power to the positioning mechanism 1. At this time, the terminal 2 sends an object positioning signal to the Bluetooth module 28 through the APP module 3, and the Bluetooth module 28 sends and receives signals to the Bluetooth module 28. At the same time, the Bluetooth module 28 sends an electrical signal to the positioning mechanism 1, guiding the positioning mechanism 1 to confirm the object to be located. At the same time, the positioning mechanism 1 starts the camera 26 through the central processor 4 to search for the object to be located. At the same time, the central processor 4 compares the object captured by the camera 26 with the object data in the database 5 to achieve the purpose of locating the object.

[0037] Example 2

[0038] The present invention also proposes an indoor positioning method based on UWB technology, comprising the following steps:

[0039] S11: First, the extension rod 12 is inserted into the extension tube 9. As the extension rod 12 is inserted, the extension rod 12 contacts the sliding plate 11 and drives the sliding plate 11 to slide;

[0040] S12: As the sliding plate 11 slides, the sliding plate 11 drives the threaded ring 20 to move. When the threaded ring 20 moves, the threaded ring 20 drives the threaded column 19 to rotate. As the threaded column 19 rotates, the threaded column 19 drives the gear 18 to rotate. When the gear 18 rotates, the gear 18 drives the rack 16 to move.

[0041] S13: As the rack 16 moves, the rack 16 drives the rotating wheel 17 to contact the inclined surface of the trapezoidal plate 22. At this time, the rotating wheel 17 drives the trapezoidal plate 22 to move through the inclined surface of the trapezoidal plate 22. The trapezoidal plate 22 drives the L-shaped plate 24 to move by pushing the matching rod 23. When the L-shaped plate 24 moves, the L-shaped plate 24 drives the T-shaped plate 25 to move and match with the grinding plate 10, thereby clamping the extension rod 12.

[0042] S1: As the positioning mechanism 1 is installed, the power supply device 6 supplies power to the positioning mechanism 1;

[0043] S2: At this time, the terminal 2 sends and receives signals to the Bluetooth module 28 through the APP module 3, and the Bluetooth module 28 sends an electrical signal to the positioning mechanism 1, guiding the positioning mechanism 1 to confirm the object to be located. At the same time, the positioning mechanism 1 starts the camera 26 through the central processor 4 to search for the object to be located. At the same time, the central processor 4 compares the object captured by the camera 26 with the object data in the database 5. When the captured object is consistent with the data in the database 5, the object is located.

[0044] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An indoor positioning system based on UWB technology, comprising a positioning mechanism (1), a terminal (2), a fixing mechanism (8) and a power supply device (6), characterized in that: The bottom of the positioning mechanism (1) is fixedly connected to a central processing unit (4) and a database (5), and the central processing unit (4) is electrically connected to a camera (26) and an LED control module (7), and the positioning mechanism (1) is movably connected to the fixing mechanism (8); The top of the positioning mechanism (1) is symmetrically fixedly connected to an extension rod (12), and there are two extension rods (12). The fixing mechanism (8) is symmetrically fixedly connected to an extension tube (9) that is compatible with the extension rod (12). The two extension tubes (9) are slidably connected to a sliding plate (11). The two sliding plates (11) extend to the outside of the extension tube (9) and are fixedly connected to a threaded ring (20) on one side away from each other. The top inner wall of the fixing mechanism (8) is symmetrically connected to a gear (18), and there are two gears (18). The bottoms of the two gears (18) are fixedly connected to a threaded column (19), and the outer wall of the threaded column (19) is threadedly connected to the inner wall of the threaded ring (20). The two extension tubes (9) are fixedly connected to a stabilizing tube (14) on one side away from each other. The two stabilizing tubes (14) are slidably connected to the inside. A rack (16) is connected, and the front side of the rack (16) is meshed with the gear (18). The inner walls of the left and right sides of the fixing mechanism (8) are provided with a slide groove (21), and the two slide grooves (21) are slidably connected with a trapezoidal plate (22). The bottom inner wall of the fixing mechanism (8) is slidably connected with an L-shaped plate (24), and the ends of the two L-shaped plates (24) away from each other are rotatably connected with a matching rod (23), and the top of the matching rod (23) is rotatably connected with the bottom of the trapezoidal plate (22). The inner walls of the two extension tubes (9) on the side close to each other are fixedly connected with a grinding plate (10), and the sides of the two L-shaped plates (24) on the side close to each other are fixedly connected with a T-shaped plate (25), and the ends of the two T-shaped plates (25) on the side close to each other extend into the two extension tubes (9) and are in active contact with the sides of the two extension rods (12) away from each other. The inner walls of the two stabilizing tubes (14) on the sides close to each other are fixedly connected with a return spring (15), and the ends of the two return springs (15) that are away from each other are fixedly connected to the ends of the two racks (16) that are close to each other. The top inner walls of the two extension tubes (9) are fixedly connected with a control spring (13), and the bottom of the control spring (13) is fixedly connected to the top of the sliding plate (11).

2. The indoor positioning system based on UWB technology according to claim 1, characterized in that: The ends of the two racks (16) that are away from each other are both rotatably connected to the rotating wheel (17), and the inclined surface of the trapezoidal plate (22) is in active contact with the rotating wheel (17).

3. The indoor positioning system based on UWB technology according to claim 1, characterized in that: The terminal (2) is electrically connected to a terminal processor (29) and an APP module (3); a Bluetooth module (28) is provided at the bottom of the positioning mechanism (1), and the Bluetooth module (28) is signal-connected to the APP module (3).

4. The indoor positioning system based on UWB technology according to claim 1, characterized in that: The central processor (4) captures the object through the camera (26) and locates the object by comparing it with the database (5).

5. The indoor positioning system based on UWB technology according to claim 1, characterized in that: The right side of the positioning mechanism (1) and the left side of the power supply device (6) are both provided with USB connection ports, and the two USB connection ports are connected via a data cable.

6. The indoor positioning system based on UWB technology according to claim 1, characterized in that: The LED control module (7) is electrically connected to an LED indicator light (27).

7. An indoor positioning method based on UWB technology, characterized in that: The indoor positioning system based on UWB technology as claimed in claim 1 comprises the following steps: S1: Install the positioning mechanism (1), and the power supply device (6) supplies power to the positioning mechanism (1); S2: The terminal (2) sends and receives signals to the Bluetooth module (28) through the APP module (3), and at the same time, the Bluetooth module (28) sends an electrical signal to the positioning mechanism (1), guiding the positioning mechanism (1) to confirm the object to be positioned. At the same time, the positioning mechanism (1) starts the camera (26) through the central processor (4) to search for the object to be positioned. At the same time, the central processor (4) compares the object captured by the camera (26) with the object data in the database (5). When the captured object is consistent with the data in the database (5), the object is positioned.

8. The indoor positioning method based on UWB technology according to claim 7, characterized in that: The S1 step specifically includes: S11: First, the extension rod (12) is inserted into the extension tube (9). As the extension rod (12) is inserted, the extension rod (12) contacts the sliding plate (11) and drives the sliding plate (11) to slide; S12: As the sliding plate (11) slides, the sliding plate (11) drives the threaded ring (20) to move. When the threaded ring (20) moves, the threaded ring (20) drives the threaded column (19) to rotate. As the threaded column (19) rotates, the threaded column (19) drives the gear (18) to rotate. When the gear (18) rotates, the gear (18) drives the rack (16) to move. S13: At the same time, as the rack (16) moves, the rack (16) drives the rotating wheel (17) to contact the inclined surface of the trapezoidal plate (22). At this time, the rotating wheel (17) drives the trapezoidal plate (22) to move through the inclined surface of the trapezoidal plate (22). The trapezoidal plate (22) drives the L-shaped plate (24) to move by pushing the matching rod (23). When the L-shaped plate (24) moves, the L-shaped plate (24) drives the T-shaped plate (25) to move and cooperate with the grinding plate (10), and then clamps the extension rod (12), completing the installation of the positioning mechanism (1).

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