A built-in radiation unit and a manufacturing method thereof

Abstract

The present application provides an embedded radiation unit and a manufacturing method thereof, which are used to locate and track mobile devices in a venue. The present application sets a kinetic power generation device in the inner core, and uses the kinetic power generation device to provide additional power feeding for the annular radiation layer on the mantle layer, thereby enhancing the positioning identification signal radiated outward by the annular radiation layer, so that the positioning base station in the venue can determine the sphere identification number and its moving position according to the positioning identification signal. The embedded radiation unit of the present application can be integrated into the structure of the mobile device, and the laser-induced graphene LIG material is flexible and can be completely attached to the outer shell of the mobile device through the abutment of the mantle layer. The structural strength of the inner core ensures that the embedded radiation unit does not affect the mechanical properties of the mobile device, and can provide tracking and prediction of the moving position and movement trajectory of the mobile device in the venue through the positioning identification signal of its annular radiation layer.

Description

Technical Field

[0001] The present application relates to an outdoor positioning device, and in particular to an embedded radiation unit and a manufacturing method thereof. Background Art

[0002] Outdoor ball sports such as golf have large venues, and the balls often roll far away, so they are often lost. Looking for lost balls will affect the progress of the game and the sports experience. At the same time, since the ball body is mostly made of artificially synthesized polymer materials, if the lost ball cannot be found in the end, the polymer substances in the ball body are difficult to degrade naturally, thus causing irreversible pollution to the ecological environment of the venue.

[0003] In the prior art, some venues use drones to search for lost balls on the field through image recognition technology. After the drone identifies the location of the lost ball, it reports it to maintenance personnel to retrieve it on site. However, this recovery and positioning method is limited by the drone's range, camera recognition accuracy, flight weather conditions, and positioning accuracy. It is easy to be affected by trees, shrubs, or water environments, and it is impossible to obtain the image of the ball body that is blocked by obstacles. Therefore, this existing identification and positioning method often misses. The existing stadium management system often ultimately needs to rely on manual inspections. This undoubtedly increases the manpower operating costs of the stadium, and still cannot solve the problem of locating lost balls in water bodies. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present application provides an embedded radiation unit for positioning a mobile device and a manufacturing method thereof. During the manufacturing process of an outdoor mobile device, the present application generates an embedded radiation unit by laser etching inside the device to achieve interaction of positioning signals, thereby achieving positioning and tracking of the outdoor mobile device through the interactive signals of the positioning base station in the field. The present application specifically adopts the following technical solutions.

[0005] Firstly, to achieve the above-mentioned purpose, an embedded radiation unit is proposed for positioning and tracking an outdoor mobile device, which comprises: a flexible material substrate, which is fitted and arranged on the outside of the inner core of the outdoor mobile device; an annular radiation layer, which is engraved on the outer surface of the flexible material substrate by laser etching, and has two relatively arranged radiation monomers, each radiation monomer is respectively provided with at least two layers of concentrically arranged semi-ring structures, and the layers of semi-ring structures of each radiation monomer are sequentially connected layer by layer; a connecting unit, which comprises a pair of connecting units arranged at the center position of the annular radiation layer, the two connecting units are respectively connected to a radiation monomer, and a chip installation gap is arranged between the two connecting units for installing a chip; each connecting unit is respectively extended outward to the end of the innermost semi-ring structure in the radiation monomer on one side of the connection, and each connecting unit is respectively connected to a feeder line to receive power feeding from a kinetic energy power generation device in the inner core of the outdoor mobile device. Optionally, an embedded radiation unit as described in any of the above, wherein the core 3 is a hollow spherical structure formed by injection molding or die casting of a non-polybutadiene material, and a straight through mounting hole is provided on the surface of the core for installing a kinetic power generation device, and a coil is also wound on the outer layer of the kinetic power generation device, and the output end of the coil can be further connected to the feeder line of the embedded radiation unit through a modulation circuit provided inside the hollow spherical structure.

[0006] Optionally, an embedded radiation unit as described in any of the above, wherein a mantle layer of polyimide resin material is provided outside the inner core 3, and the outer surface of the mantle layer is coated with nano copper oxide powder according to an annular radiation layer structure, and a laser engraving machine scans along the pattern formed by the nano copper oxide powder coating on the surface of the mantle layer with a laser power of 15W to form an annular radiation layer and a connecting unit of laser induced graphene LIG material.

[0007] At the same time, in order to achieve the above-mentioned purpose, the present application also provides a method for manufacturing an embedded radiation unit, which is used for any of the embedded radiation units described above, and the steps include: the first step is to inject or die-cast a non-polybutadiene material to form an inner core that can be composed of a hollow sphere, and set a straight through mounting hole on the inner core; the second step is to penetrate the kinetic energy power generation device into the mounting hole, and lead the feeder corresponding to the power generation device out of the inner core; the third step is to cover the outer core with a mantle layer structure, and set a polyimide resin material as a flexible material substrate on at least part of the outer surface of the mantle layer structure, and set the feeder corresponding to the power generation device to be led out from the middle of the flexible material substrate; the fourth step is to carve an annular radiation layer on the outer surface of the flexible material substrate by laser etching, and carve a connection unit at the position where the feeder is led out from the middle of the flexible material substrate; the fifth step is to install the chip between two connection units arranged oppositely on the flexible material substrate, and set the two connection units to receive the feeder of the kinetic energy power generation device in the inner core from the feeder respectively; the sixth step is to encapsulate the outer shell of the flexible material substrate and the mantle layer.

[0008] Optionally, a manufacturing method for an embedded radiation unit as described in any of the above, wherein, in the second step, each kinetic power generation device is connected end to end in the inner core to form a regular tetrahedral frame structure inscribed in the inner core 3; in the cavity structure of the inner core, a modulation circuit is also fixedly arranged inside the regular tetrahedral frame structure formed by the connection of the kinetic power generation device, and the modulation circuit is connected to the output terminal of the outer coil of the kinetic power generation device, receives the output electric energy of the kinetic power generation device, and provides a feeding signal to the feeder line of the rear-direction radiation unit after modulation, thereby enhancing the positioning identification signal radiated outward by the annular radiation layer, so that the positioning base station in the site can determine the sphere identification number and its movement position according to the positioning identification signal.

[0009] Optionally, a method for manufacturing an embedded radiation unit as described in any of the above, wherein the mantle layer is entirely made of polyimide resin material, the feeder line extending from the inner core is retained during the formation of the mantle layer, and the setting range of the radiation unit is determined based on the feeder line lead-out end, and the polyimide resin material is thickened within this range as a flexible material base.

[0010] Optionally, in a method for manufacturing an embedded radiation unit as described in any of the above, the annular radiation layer and the connecting unit are directly generated by etching through the outer surface of the polyimide resin material, and the connecting through hole for the feed line to pass through, which is formed in the process of forming the polyimide resin material mantle layer, is directly converted into a LIG material by laser engraving in the connecting unit, and a conductive gel is injected into the connecting through hole of the LIG material to realize the output of the feed signal.

[0011] Optionally, a method for manufacturing an embedded radiation unit as described in any of the above, wherein, before engraving the outer surface of the flexible material substrate to form an annular radiation layer by laser etching, the outer surface of the flexible material substrate is pre-covered with nano-copper oxide powder with a thickness of 100-600nm according to the annular radiation layer pattern, and a laser engraving machine scans the surface of the nano-copper oxide powder covered on the mantle layer surface with a laser power of 15W to form the annular radiation layer pattern.

[0012] Optionally, in a method for manufacturing an embedded radiation unit as described in any of the above, the interior of the mantle layer is set with surin or polyurethane, and its surface is only set with polyimide resin material in a circular area corresponding to the center of each kinetic energy power generation device as a flexible material substrate.

[0013] Optionally, a method for manufacturing an embedded radiation unit as described in any of the above, wherein the flexible material substrate is a PI film which is thick in the middle and thin around the edges and has a smooth transition outward from the center of the kinetic energy power generation device, and the annular radiation layer and the connecting unit are directly generated by etching through the outer surface of the PI film.

[0014] Beneficial Effects

[0015] The present application provides an embedded radiation unit and a manufacturing method thereof, which are used to locate and track mobile devices in a venue. The present application sets a kinetic power generation device in the inner core, and uses the kinetic power generation device to provide additional power feeding for the annular radiation layer on the mantle layer, thereby enhancing the positioning identification signal radiated outward by the annular radiation layer, so that the positioning base station in the venue can determine the sphere identification number and its moving position according to the positioning identification signal. The embedded radiation unit of the present application can be integrated into the structure of the mobile device, and the laser-induced graphene LIG material is flexible and can be completely attached to the outer shell of the mobile device through the abutment of the mantle layer. The structural strength of the inner core ensures that the embedded radiation unit does not affect the mechanical properties of the mobile device, and can provide tracking and prediction of the moving position and movement trajectory of the mobile device in the venue through the positioning identification signal of its annular radiation layer.

[0016] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent from the description, or may be understood by practicing the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the working method of the system for positioning and tracking the embedded radiation unit provided by the present application;

[0019] Figure 2 It is a schematic diagram of the structural principle of the positioning unit used in an outdoor mobile device of the present application;

[0020] Figure 3 is a schematic diagram of the interaction between the outdoor mobile device and the site facilities of the present application;

[0021] Figure 4 It is the directional diagram of any embedded radiation unit in the outdoor mobile device of the present application.

[0022] Figure 5 is a schematic diagram of the configuration of the embedded radiation unit in the outdoor mobile device of the present application;

[0023] Figure 6 is a flowchart of the steps of manufacturing the embedded radiation unit of the present application;

[0024] Figure 7 It is the experimental data of the conductive characteristics of the annular radiation layer in the preferred embodiment of the present application.

[0025] In the figure, 1 represents a kinetic power generation device; 2 represents a radiation unit; 3 represents an inner core; 4 represents a mantle layer; 5 represents an outer shell; 6 represents a positioning base station; 7 represents a ball hole; and 8 represents a server. DETAILED DESCRIPTION

[0026] In order to make the purpose and technical solution of the embodiment of the present application clearer, the technical solution of the embodiment of the present application will be clearly and completely described in conjunction with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0028] The meaning of "and / or" described in this application means that the situations where each exists alone or both exist at the same time are included.

[0029] The meaning of "inside" and "outside" in this application refers to the direction from the outer shell to the inner core of the golf ball body itself, and the opposite direction is outside; it is not a specific limitation on the device mechanism of this application.

[0030] The term “connection” as used in this application may mean a direct connection between components or an indirect connection between components via other components.

[0031] Figure 1 The present invention is a positioning detection system for outdoor mobile devices. The outdoor mobile devices detected by the system can be any outdoor ball sports devices such as golf, tennis, ground ball, bocce ball, shot put, etc. The mobile device sphere of the present application is generally configured to be composed of a core 3 and an outer shell 5. The present application embeds an outdoor ball positioning unit composed of an embedded radiation unit inside the sphere, and the positioning unit includes:

[0032] Kinetic energy power generation devices 1 are embedded in the inner core 3 of the sphere and arranged symmetrically with the center of the sphere as the center. Each kinetic energy power generation device 1 is triggered by the rotation state of the sphere to output a feed signal.

[0033] An embedded radiation unit 2 is disposed between the inner core 3 and the outer shell 5 of the sphere, wherein the feeding end of the radiation unit is electrically connected to the output end of the kinetic energy power generation device 1, and radiates a positioning identification signal outward in response to the feeding signal of the kinetic energy power generation device 1, so that the positioning base station in the field can determine the identification number of the sphere and its moving position according to the positioning identification signal;

[0034] A corresponding radiation unit 2 is fixedly installed on the outside of each kinetic energy power generation device 1, and the radiation surface of each radiation unit 2 is parallel to the kinetic energy power generation device 1 to which it is connected, and the radiation surface of each radiation unit 2 is respectively set to take the line between the center of the kinetic energy power generation device 1 to which it is connected and the center of the sphere as the symmetry center.

[0035] refer to Figure 3 As shown in the figure, each positioning base station 6 set in the venue periodically radiates detection signals outward. After receiving the detection signals, the golf ball equipped with the above positioning unit will superimpose the positioning identification signal on the feedback echo signal through the internal radiation unit. Therefore, when the ball passes through each positioning base station, each positioning base station near the ball can determine the ball identification number according to the positioning identification signal carried on the feedback echo, and according to the feedback signal detected by each base station The corresponding radiation sector And the radiation altitude angle θ corresponding to the feedback signal, calculate the movement position of the ball. Each base station periodically monitors the movement position of the ball, and can generate and predict the movement trajectory of the ball accordingly. Therefore, after the ball stops moving or rolls into the detection signal blind spot and loses the positioning identification signal, it can still be roughly positioned according to the previously identified movement trajectory to reduce the search range of the lost ball and facilitate the recovery of the ball.

[0036] In some implementations, the embedded radiation unit of the present application can be Figure 6 The following steps are obtained:

[0037] The first step is to form a core 3 that can be formed into a hollow sphere by injection molding or die casting of a non-polybutadiene material, and to set a straight through mounting hole on the core 3;

[0038] The second step is to install the kinetic energy power generation device 1 through the installation hole, and lead the feeder corresponding to the power generation device 1 out of the core 3;

[0039] The third step is to cover the mantle layer 4 structure outside the inner core 3, and to set a polyimide resin material as a flexible material substrate 21 on at least part of the outer surface of the mantle layer 4 structure, and to set the feeder corresponding to the power generation device 1 to be led out from the middle of the flexible material substrate 21;

[0040] Step 4: Carve a ring-shaped radiation layer 22 on the outer surface of the flexible material substrate 21 by laser etching, and carve a connection unit 23 at the position where the feeder line is led out from the middle of the flexible material substrate 21;

[0041] Step 5: Install the chip between two connecting units 23 arranged opposite to each other on the flexible material substrate 21, and set the two connecting units 23 to receive power from the kinetic energy power generation device 1 in the core through the feeder wires respectively;

[0042] Step six: encapsulate the outer shell 5 outside the flexible material substrate 21 and the mantle layer 4 .

[0043] The embedded radiation unit thus obtained has a flexible material substrate 21 that can be completely attached to the outer side of the core of the outdoor mobile device after passing through the mantle layer, and the core structure provides support strength; the annular radiation layer 22 is engraved on the outer surface of the flexible material substrate 21 by laser etching, and has two relatively arranged radiation monomers, each of which is respectively provided with at least two layers of concentrically arranged semi-ring structures, and the layers of semi-ring structures of each radiation monomer are sequentially connected layer by layer, and the parasitic inductive reactance formed by the radiation monomers and the internal structure of the radiation monomers themselves can be used to realize the modulation of the feeding signal of the kinetic energy power generation device 1, thereby enhancing the strength of the positioning identification signal radiated externally for positioning the base station. In this implementation mode, the two connecting units 23 in the middle of the flexible material substrate 21 are respectively connected to a radiation monomer, and the gap connection chip 24 between the two connecting units 23 superimposes the identification number of the mobile device sphere in the externally radiated radio frequency signal through chip modulation. Each connection unit extends outward to the innermost semi-ring structure end of the radiation monomer on one side of the connection, and each connection unit is connected to the feeder line passing through the mantle layer led out from the kinetic energy generator 1 to receive power from the kinetic energy generator 1 in the core of the outdoor mobile device.

[0044] To facilitate the identification of the positioning identification signal radiated outward by the positioning base station at different locations, the present application may further refer to Figure 5 and Figure 2 As shown, in the inner core of the sphere, each of the kinetic energy power generation devices 1 is connected end to end to form a regular tetrahedron inscribed in the inner core 3. Thus, each of the kinetic energy power generation devices 1 can provide support for the inner core to improve the structural strength of the inner core, and can also feed power to radiation units in different directions through power generation devices in different directions in space, so as to facilitate the positioning units at various positions in the stadium to receive the positioning identification signals radiated outward by the positioning units from different radiation directions.

[0045] Each kinetic energy power generation device 1 in the inner core of the sphere can be respectively configured to include:

[0046] The core tube 10 is hollow inside and has a smooth inner wall;

[0047] A first magnet 11 is disposed at one end of the core tube 10;

[0048] A second magnet 12, which is disposed at the other end of the core tube 10;

[0049] The middle magnet 13 is disposed in the core tube 10 and is located between the first magnet 11 and the second magnet 12;

[0050] The coil 16 is wound around the outer circumference of the core tube 10 and completely covers the area between the first magnet 11 and the second magnet 12. The outlet end of the coil 16 is arranged at the middle position of the core tube 10.

[0051] The magnetic poles of the adjacent end faces between the first magnet 11, the second magnet 12 and the middle magnet 13 are arranged to repel each other magnetically, and a buffer structure is also arranged between the adjacent end faces. The middle magnet 13 slides back and forth between the first magnet 11 and the second magnet 12 along the inner wall of the core tube 10 in response to the change of the rotation state of the sphere, and reciprocates and vibrates in the coil 16. The sliding of the magnet inside the coil causes the magnetic flux in the coil to change, so that the coil output terminal outputs a feeding signal.

[0052] In the present application, the feed signal output by the kinetic energy power generation device can be directly fed into the radiation unit through the feed line, or it can be modulated by the modulation circuit set in the core and then fed into the radiation unit. When the feed signal is directly fed into the radiation unit through the feed line, the present application can select and tune the harmonics of the feed signal through the parasitic inductance generated by the structure of the radiation unit 2 itself, thereby realizing the output of the positioning identification signal.

[0053] The modulation circuit therein can be assembled in the inner core during the setting process of the kinetic energy power generation device 1 in the following manner to realize the modulation of the feeding signal of the kinetic energy power generation device 1 so as to improve the radiation efficiency of the annular radiation layer 22: each kinetic energy power generation device 1 is connected end to end in the inner core 3 to form a regular tetrahedron frame structure inscribed in the inner core 3; in the cavity structure in the middle of the inner core 3, a modulation circuit is further fixedly arranged inside the regular tetrahedron frame structure formed by the connection of the kinetic energy power generation device 1, and the modulation circuit is connected to the output terminal of the outer coil of the kinetic energy power generation device 1 to receive the output electric energy of the kinetic energy power generation device 1, and the output terminal of the modulation circuit is connected to the feeder line corresponding to the annular radiation layer to provide a feeding signal to the feeder line of the radiation unit after modulation, thereby enhancing the positioning identification signal radiated outward by the annular radiation layer 22, thereby assisting the positioning base station in the field to more accurately identify the positioning signal, and determine the sphere identification number and its movement position according to the positioning identification signal. For specific reference Figure 2 As shown, in the present application, the radiation unit 2 may be specifically configured to include:

[0054] A flexible material substrate 21, the outer surface of which is in contact with the inner wall of the housing 5;

[0055] The annular radiation layer 22 is engraved on the outer surface of the flexible material substrate 21 by laser etching, and has two oppositely arranged radiation monomers, each of which is respectively provided with at least two layers of concentrically arranged semi-ring structures, and the layers of semi-ring structures of each radiation monomer are sequentially connected layer by layer;

[0056] The connecting unit 23 includes a pair of connecting units 23 disposed at the center of the annular radiation layer 22 facing the kinetic energy power generation device 1, and a chip installation gap parallel to the long axis direction of the core tube 10 is provided between the two connecting units for installing the chip 24;

[0057] Each connection unit extends outward to connect to the innermost half-ring structure end of the radiation monomer on one side, and each connection unit is connected to the output terminal on one side of the kinetic energy power generation device 1.

[0058] The two radiation monomers in the annular radiation layer 22 of the present application are arranged to be symmetrical with respect to the center of the chip 24, the inner diameter and outer diameter of the semi-ring structure of the same layer between the two radiation monomers are equal, and the radial connection structure between each layer of the semi-ring structure and the extension structure between the connection unit and the innermost semi-ring structure appear alternately at both ends of the semi-ring structure. Figure 2 Taking the double-layer semi-ring structure shown as an example, the left end of the first connection unit extends outward and is connected to the top of the inner semi-ring structure, and the bottom of the inner semi-ring structure turns outward and is connected to the bottom of the outer semi-ring structure; the right end of the second connection unit extends outward and is connected to the bottom of the inner semi-ring structure, and the top of the inner semi-ring structure turns outward and is connected to the top of the outer semi-ring structure. Therefore, the feeding signal fed by any connection unit to the radiating monomer connected thereto can obtain a corresponding symmetrical signal in the radiating monomer on the other side. For example, when the first connection unit feeds a feeding current, the current is output counterclockwise from the upper part to the bottom of the outer semi-ring structure in the inner semi-ring structure, and then fed clockwise from the bottom of the outer semi-ring structure to the top end of the structure. The feeding method on the other side is symmetrical. As a result, the electrical signals between the left and right semi-ring structures are continuous, forming an equivalent inductance; parasitic capacitance is formed between each layer of semi-ring structure, and is tuned with the equivalent inductive reactance, and radiates outward through the annular gap structure between the two.

[0059] The connection unit at the center of the radiation unit 2 of the present application can be set as a semicircular structure to connect the chip 24 through its straight edge and couple the inner semi-ring structure through its curved edge. The radius size of the connection unit, the gap distance between each layer of the semi-ring structure and the thickness can be flexibly adjusted according to the radiation frequency of the positioning identification signal. Since each layer of the semi-ring structure is coupled to form a parasitic reactance, the present application preferably sets the gap direction of the chip installed between the connection units to be perpendicular to the gap direction between the radiation monomers. In this way, it is possible to avoid the extension structure set at a close distance between the innermost connection unit and the semi-ring structure from further generating parasitic capacitance, thereby affecting the radiation direction of the outer annular radiation gap. Therefore, the radiation unit of the present application can be circularly polarized in a manner to Figure 4 The directional diagram shown outputs a positioning identification signal to achieve radiation output in all directions through the radiation units in all directions inside the ball body, which is convenient for the positioning base station 6 to receive. In the present application, the main radiation direction width of each radiation unit in the ball body reaches 120° and its main lobe is close to a hemispherical shape. Therefore, the golf ball of the present application can radiate positioning identification signals uniformly outward through its radiation units 2 in all directions for identification by the positioning base stations at various positions on the golf course. Each positioning base station can connect to the server 8 through a wireless network, and upload the received positioning identification signals to the server in real time. The server calculates the coordinate position of the sphere relative to each positioning base station according to the signal strength, frequency deviation, phase offset and / or receiving angle of each positioning identification signal.

[0060] The present application may further provide a receiving terminal for positioning identification signals in the hole 7, so as to realize automatic scoring according to the ball identification number carried by the receiving terminal.

[0061] Taking a golf ball with a hard core and several mantle layers 4 as an example, the golf ball of the present application can be specifically set as a hollow spherical core 3 formed by injection molding or die casting of a non-polybutadiene material. During the injection molding or die casting process, a mounting hole is formed on the spherical surface of the core to insert the kinetic energy power generation device into the mounting hole and set it in the non-polybutadiene material core, and the feeder wire modulated by the modulation circuit at the outlet end of the outer coil of the kinetic energy power generation device 1 is set to be led out through the through hole on the surface of the core. Then, any one of PI (polyimide resin, polyimide) material, sarin resin, polyurethane, or a combination of the above materials is used to cover the outer periphery of the core as the mantle layer 4. During the generation process of the mantle layer 4, it can be directly attached to the surface of the core by spraying, brushing or thermoplastic method, and the feeder wire at the outlet end is retained at the attachment position to form a connecting through hole. As a result, the embedded radiation unit can directly determine the setting range of the radiation unit 2 based on the feeder lead end, and cover the flexible material substrate 21 within this range, or directly engrave the annular radiation layer 22 on the outer surface of the PI material by laser etching at the corresponding position in the mantle layer 4 of the PI material.

[0062] In order to ensure that the feeder is stably connected to the connection unit at the center of the radiation unit 2 to achieve power feeding, and to provide rotational inertia through the mantle layer 4 in all directions inside the sphere to keep the sphere stable, the present application preferably sets the flexible material substrate 21 as a PI film that is thick in the middle and thin around the edges. For the mantle layer 4 that is made of PI material, the present application can also set a PI layer thickening at the position corresponding to the radiation unit 2. The structure of the flexible material substrate 21 can be specifically set to be thick in the middle and thin around the edges and smoothly transition outward from the direction where the center of the kinetic energy power generation device 1 is located, so as to provide sufficient structural strength in the electrical connection structure at the middle point to support the annular radiation layer 22 and the connection unit 23 to be directly etched through the outer surface of the PI film. As a result, the annular radiation layer 22 and the connection unit 23 can be directly generated by etching through the outer surface of the PI film, and the connection unit 23 can also directly output the feed signal through the connection through hole formed when covering the PI layer, through the laser conversion of the LIG material and the conductive gel coated in the gap of the connection through hole. The feeder wire at the outlet end of the kinetic energy power generation device 1 passes through the connecting through hole, and is connected to the annular radiation layer 22 by the connecting unit to realize the output of the positioning identification signal. In the present application, the connecting unit and the annular radiation layer 22 are both configured as laser induced graphene (LIG) generated by the conversion of the PI film through a laser etching process, which has a flexible structure and can be fitted to the deformation caused by the external force on the outer shell of the sphere without affecting the normal operation of the circuit radiation structure. The structure of the radiation unit 2, which is thick in the middle and thin around, can reduce the influence of the deformation amount of the inner side of the radiation structure on the signal radiation characteristics during the hitting and rotation of the sphere, and ensure the recognition effect of the positioning base station integrated in the devices such as the irrigation sprinkler of the lawn of the stadium and the light box. A metal reflective layer can be further provided at the bottom layer of the radiation unit 2 to improve the radiation intensity of the annular radiation layer 22 and protect the kinetic energy power generation device 1 in the sphere from being affected by the external electromagnetic environment. In the present application, the mantle layer 4 can also be directly set as a polyimide resin material as a whole. During the formation of the mantle layer, the feeder wire extending from the core is retained, and the setting range of the radiation unit 2 is determined based on the lead-out end of the feeder wire, and the polyimide resin material is thickened within the range as the flexible material substrate 21. The annular radiation layer 22 and the connection unit 23 of each radiation unit 2 can be respectively generated by etching the outer surface of the PI material of the mantle layer 4, and the thickness of the generated laser induced graphene (LIG) can be adjusted by adjusting the laser intensity to achieve the effect of penetrating the entire PI layer. In other words, in the process of laser etching to generate the connection unit 23, the present application can directly convert the connection through hole for the feeder wire formed in the mantle layer 4 of the polyimide resin material into the LIG material through laser engraving by strengthening the laser etching intensity, and injecting a conductive gel into the connection through hole of the LIG material can ensure the output of the feed signal. As a result, the connection unit is directly connected to the feed connection line to realize feeding, and the thickness of the LIG material can also provide additional strength, and the outer shell can be used to limit the thickened part of the PI mantle layer 4 to further protect the stable operation of the electrical connection radiation path.

[0063] In a more preferred implementation, the inventors also measured the conductivity of graphene materials converted by different laser processing processes and found that: on the surface of polyimide resin (PI) material coated with nano copper oxide powder, a laser engraving machine was set to scan along the pattern formed by the nano copper oxide powder coating on the surface of the mantle layer 4 with a laser power of 15W, and the conductivity of the converted laser-induced graphene LIG material was changed from 0.04 to 0.11. Figure 7 The 5.05*10^5S / cm of pure graphene material is further improved to 5.2*10^5S / cm. In the experiment, the surface of the PI material to be etched and converted is covered with nano-oxide powder with a thickness of 100-600nm. The annular radiation layer 22 and the connection unit 23 generated by the conversion with a laser power of 15W and a scanning speed of 50mm / s can obtain the optimal conductive effect, and the copper oxide material can be synchronously heated through the laser conversion process to further solidify the electrical connection structure between the connection unit and the copper wire structure of the feeder, further enhancing the mechanical strength of the radiation unit.

[0064] In order to prevent the magnets in the kinetic energy power generation device 1 inside the sphere of the present application from breaking during the reciprocating collision process, the present application can further wrap a layer of TPE film with a smooth surface tightly and evenly on the surface of each of the first magnet 11, the second magnet 12 and the middle magnet 13, and provide protection and buffering through the TPE film. The inner wall surface of the core tube 10 can be evenly coated with a lubricating coating so that each magnet can reciprocate sensitively in the coil as the sphere rotates. The first magnet 11 and the second magnet 12 can be fixed at both ends of the kinetic energy power generation device 1, or they can slide freely in the core tube through the protection of the buffer material at their ends.

[0065] In view of the arrangement of the first magnet 11 and the second magnet 12 to slide freely in the core tube, the present application preferably arranges the coil 16 into two groups, including a first outlet end that is evenly wound from the end where the first magnet 11 is located to the middle position of the core tube 10, and a second outlet end that is evenly wound from the end where the second magnet 12 is located to the middle position of the core tube 10. Since the winding directions of the first outlet end and the second outlet end coils along the circumference of the core tube are opposite, under the same rotation state, the feeding signals output by the first outlet end and the second outlet end are opposite, and after being connected to the radiation unit 2 to form a feeding loop, the two outlet ends can synchronously provide continuous phase feeding outputs for the two groups of radiation monomers in the radiation unit, thereby increasing the feeding strength of the radiation unit through the additional magnetic flux introduced by the first magnet 11 and the second magnet 12, thereby improving the radiation strength of the positioning identification signal, which is convenient for the positioning base station to perform positioning identification.

[0066] In a specific implementation, the buffer structure between each magnet and the core tube can be set as: a spring 15 fixedly mounted on the inner end surface of the first magnet 11 and the second magnet 12, and a rebound sheet 14 fixedly mounted on the inner end of the spring 15. When the core tube tilts to one side as the sphere rotates, each magnet moves downward along the tilt direction accordingly. Since the magnetic poles between the middle magnet and the magnets at both ends repel each other, the magnetic lines of force between the middle magnet and the magnets at both ends cut the coil to generate an induced current, thereby realizing the feeding output. Since the magnetic flux between the middle magnet and the first magnet 11, and between the middle magnet and the second magnet 12 are opposite, the induced current generated in the coil also flows in the opposite direction, so that the feeding signal has positive and negative polarity, thereby realizing omnidirectional radiation output.

[0067] In other implementations, the buffer structures between the above-mentioned magnets and at the ends of the two end magnets can also be replaced by lubricating liquid filled in the core tube 10. Gaps for the passage of lubricating liquid are respectively left between the outer peripheries of the first magnet 11, the second magnet 12 and the middle magnet 13 and the inner wall of the core tube 10, so that each magnet can be buffered by the lubricating liquid and slide accordingly in the core tube with the movement of the ball to achieve magnetic flux changes, and generate induced current in the coil accordingly.

[0068] Therefore, the present application uses the kinetic energy power generation device 1 inside the sphere to directly provide power supply based on the motion state of the sphere, thereby realizing the radiation output of the positioning identification signal, thereby realizing real-time positioning and identifying and recording the motion trajectory of each golf ball based on the radiation signal of the sphere through the positioning base station integrated in the outdoor venue facilities such as the golf course lawn irrigation sprinkler and light box in the following manner:

[0069] The server receives the feedback signals uploaded by each positioning base station 6 in turn according to the predetermined interaction cycle. Among them, ij represents the coordinate position number of the positioning base station, represents the radiation sector of the positioning base station corresponding to the feedback signal, θ represents the radiation altitude angle corresponding to the feedback signal, and A represents the echo signal fed back by the radiation unit 2 in the sphere. The echo signal contains the sphere identification number. Therefore, the server can determine the sphere identity corresponding to each feedback signal according to the sphere identification number. According to the coordinate position of each positioning base station 6 in the site, with the coordinate position of each positioning base station as the center of the circle, according to the radiation sector in which the positioning base station receives the feedback signal of the sphere, the overlapping range of the radiation sectors of each positioning base station is determined, so as to locate the coordinate range R of the sphere in the site according to the radiation sector corresponding to each feedback signal;

[0070] Then, the server can correct and extract the feedback signal of each positioning base station according to the radiation altitude angle θ corresponding to the feedback signal According to the sphere identification number in the feedback signal, the motion features α corresponding to the same sphere identification number are combined into a motion feature matrix corresponding to the sphere with the same number according to the coordinate position number sequence of the positioning base station. Find the trajectory extraction model according to the motion feature matrix T and calculate the expected coordinate range R′ of the ball in the field in the next scanning cycle;

[0071] Therefore, the server can further calculate the expected radiation sector of each positioning base station 6 according to the expected coordinate range R′ Generate a detection control matrix, and issue a scanning instruction to each positioning base station 6 according to the detection control matrix, so that each positioning base station 6 adjusts the intensity and direction of the outwardly radiated radio frequency signal according to the scanning instruction to mainly tend to the expected radiation sector And ensure that the feeding strength of each antenna unit is sufficient to radiate the detection signal to the sphere at the expected coordinate range R′, so as to ensure that each positioning base station can effectively receive the echo signal fed back by the sphere;

[0072] While performing the above-mentioned interactive control, the server of the present application also synchronously outputs the sphere coordinates and motion trajectory to the interactive terminal according to the coordinate range R of the sphere located in the venue during this scanning cycle and the corresponding estimated coordinate range R′, triggering the interactive terminal to indicate the direction of the sphere in real time according to its positioning signal, so as to facilitate the user to search for the sphere in the venue.

[0073] In the process of positioning calculation performed by the server according to the echo signal fed back by the radiation unit 2 in the sphere, the calculation process can be further simplified in the following way to achieve a more accurate trajectory prediction effect:

[0074] According to the predetermined interaction cycle, the feedback signals uploaded by each positioning base station 6 are received in turn The identity of the ball corresponding to each feedback signal can be determined according to the ball identification number. Figure 1 As shown, for each feedback signal belonging to the same sphere According to the coordinate position of each positioning base station 6 in the site, with the coordinate position of each positioning base station as the center of the circle, according to the radiation sector in which the positioning base station receives the feedback signal of the sphere, the overlapping range of the radiation sectors of each positioning base station is determined, so as to locate the coordinate range R of the sphere in the site according to the radiation sector corresponding to each feedback signal;

[0075] Then, according to the radiation elevation angle θ corresponding to the feedback signal, the feedback signal of each positioning base station is corrected and extracted through the following steps: Motion characteristic α: Calculate the spatial transmission distance between the sphere and the positioning base station based on the radiation altitude angle θ corresponding to the feedback signal and the coordinate range R of the sphere in the venue, and compensate the phase delay of the echo signal A caused by spatial transmission according to the spatial transmission distance to obtain the compensation signal A'. After removing the phase delay caused by spatial transmission, the compensation signal A' can directly reflect the rotational acceleration in various directions carried by the sphere due to its own rotational inertia. Since the phase change of the compensation signal A' received by each positioning base station only reflects the rotational acceleration corresponding to the receiving direction of the base station, the acceleration state of the sphere in various directions can be obtained by normalizing the phase of the compensation signal A' obtained by each base station, and the normalized phase is used as the feedback signal of the positioning base station. The motion feature α is used to extract the motion state of the sphere and predict the estimated coordinate range R′ of the next scanning cycle.

[0076] In the specific prediction process, the server combines the motion features α corresponding to the same sphere identification number according to the coordinate position number sequence of the positioning base station into a motion feature matrix corresponding to the sphere with the same sphere identification number according to the sphere identification number in the feedback signal. Find the trajectory extraction model according to the motion feature matrix T to calculate the expected coordinate range R′ of the ball in the field in the next scanning cycle;

[0077] Among them, the trajectory extraction model can be generated in advance through the following steps to record the matching relationship between different motion feature matrices and different rotation components of the sphere, and provide a calculation basis for calculating the expected coordinate range R′ of the sphere in the venue in the next scanning cycle: drive the standard sphere to run in the venue according to the preset path and rotation component, and control the positioning base station 6 within the range of d meters from the standard sphere through the server 8, or at least control the n positioning base stations closest to the standard sphere to radiate radio frequency signals to the standard sphere, and receive the echo signal A fed back by the radiation unit 2 in the sphere; receive the feedback signal uploaded by each positioning base station 6 through the server 8 For each feedback signal The phase of the standard sphere echo signal A corresponding to the same coordinate position and the same rotation component is normalized, and the normalized phases are combined into a standard motion feature matrix T corresponding to the current coordinate position and rotation component of the standard sphere according to the coordinate position numbering sequence of the positioning base station. * , that is, the standard motion characteristic matrix T at a specific position and a specific rotation state * The standard motion feature matrix T is recorded in the trajectory extraction model. * The standard sphere coordinate position and rotation component corresponding to it can be used in the subsequent calculation process to identify the standard matrix closest to it according to the different motion characteristic matrices of the sphere, so as to evaluate the rotation component state corresponding to the sphere.

[0078] Therefore, after searching the trajectory extraction model according to the motion feature matrix T, the expected coordinate range R′ of the sphere in the field in the next scanning cycle can be calculated by integration:

[0079] 1. According to the coordinate range R of the sphere in the field, find the standard motion feature matrix T corresponding to the coordinate range in the trajectory extraction model * , select the standard motion feature matrix T with the smallest Hamming distance to the motion feature matrix T * , extract the corresponding rotation component;

[0080] 2. Calculate the ball's movement speed v based on the distance between the coordinate range of the ball detected in the previous scanning cycle and the current coordinate range, and correct the ball's movement speed with the rotation component. The specific direction of the sphere is obtained in, Indicates the influence of air resistance on the sphere, where C D is the sphere damping coefficient, ρ a is the air density, d is the outer diameter of the sphere, and m is the weight of the sphere. For the initial condition, the sphere at the current position is set according to its real-time acceleration After one integration, the change of the ball's running speed in the next scanning cycle can be obtained. Then, the speed variable obtained by the first integration is integrated again to obtain the movement of the ball in the field in the next scanning cycle, thereby estimating the expected coordinate range R' of the ball in the next scanning cycle.

[0081] Therefore, the server can further calculate the expected radiation sector of each positioning base station 6 according to the expected coordinate range R′ in the following manner: Generate a detection control matrix to Figure 3 The method shown in the figure issues a scanning instruction to each positioning base station 6 according to the detection control matrix, so that each positioning base station 6 adjusts the intensity and direction of the outwardly radiated radio frequency signal according to the scanning instruction, mainly biased towards the expected radiation sector And ensure that the feeding strength of each antenna unit is sufficient to radiate the detection signal to the sphere at the expected coordinate range R′, so as to ensure that each positioning base station can effectively receive the echo signal fed back by the sphere:

[0082] Connect the coordinates of each positioning base station 6 with the center of the estimated coordinate range R', and determine the estimated radiation sector of each positioning base station based on the connection line The direction of the axis is based on the acceleration of the sphere The displacement component perpendicular to the ground direction obtained by the second integration determines the estimated radiation altitude angle θ′ corresponding to each positioning base station 6 in the next scanning cycle;

[0083] According to the expected radiation sector The axis direction and the predicted radiation altitude angle θ′ corresponding to the positioning base station 6 are retrieved from the server, and the detection control matrix pre-trained and matched to the altitude is obtained. The transceiver state of each antenna unit in the transceiver antenna array on the top of the housing of each positioning base station 6 is controlled according to the detection control matrix, so that the overall array pattern of the transceiver antenna array has a radiation sector that matches its predicted radiation sector. The radiation signal gain intensity and radiation direction of the expected radiation height angle θ′ are calculated, and at the same time, other radiation directions are scanned by feeding other antenna arrays to avoid missing spheres in other directions.

[0084] In the present application, a plurality of layers of antenna units may be arranged in a ring on the top of the housing of the positioning base station 6 to form a transceiver antenna array. The height of each layer of antenna units in the transceiver antenna array increases layer by layer, and the number of antenna units in each layer of the transceiver antenna array decreases layer by layer. The server pre-stores a detection control matrix matching different expected radiation height angles θ′, and each element in the detection control matrix corresponds to the corresponding expected radiation sector in the transceiver antenna array on the top of the housing of the positioning base station 6. Therefore, the server can control the transceiver status of each antenna unit in the transceiver antenna array on the top of the housing of each positioning base station 6 in the following manner according to the detection control matrix:

[0085] Expected radiation sector With the axis direction as the center, according to the receiving and transmitting feeding status of each antenna unit stored in the detection control matrix, some antenna units corresponding to the radiation sector in the receiving and transmitting antenna array on the top of the housing of the positioning base station 6 are fed to make them radiate outward as the transmitting end 61, while other antenna units are used as the receiving end 62 to receive feedback signals. During the feeding process, the feeding strength of each transmitting end 61 can be determined according to the spatial distance from the expected coordinate range R′ to the positioning base station 6, providing a larger power feeding input when the spatial distance is far, and providing a smaller power feeding input when the spatial distance is close. In addition, while ensuring that the expected radiation sector While predicting the electromagnetic radiation output within the coordinate range R′, other antenna units can also be fed alternately and synchronously, thereby correspondingly stimulating other antenna units to act as transmitters to traverse and scan other areas near the positioning base station. In this process, they receive feedback signals correspondingly with the antenna units that are not transmitters, which can effectively avoid missing the echo signals fed back by the sphere.

[0086] Therefore, after receiving the echo signals from other new sectors, each positioning base station will also package them and report them to the server. Through the same steps as mentioned above, the newly appeared spherical feedback echo signals can be located and tracked, and the interactive tracking of any number of mobile devices in the entire venue area can be achieved through the sparsely arranged positioning base stations in the venue.

[0087] The above is only an implementation method of the present application, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present application. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application.

Claims

1. An embedded radiation unit for locating and tracking an outdoor mobile device, characterized in that: include: The inner core (3) is a hollow spherical structure formed by injection molding or die casting of a non-polybutadiene material. A straight through mounting hole is provided on the surface of the inner core (3) for mounting a kinetic energy power generation device (1). The kinetic energy power generation device (1) is respectively configured to include: The core tube (10) is hollow inside and has a smooth inner wall; A first magnet (11) disposed at one end portion of the core tube (10); A second magnet (12) disposed at the other end portion of the core tube (10); An intermediate magnet (13) is disposed in the core tube (10) and is located between the first magnet (11) and the second magnet (12); A coil (16) is wound around the outer circumference of the core tube (10) and completely covers the area between the first magnet (11) and the second magnet (12); an outlet end of the coil (16) is arranged at a middle position of the core tube (10); The magnetic poles of the adjacent end surfaces between the first magnet (11), the second magnet (12) and the intermediate magnet (13) are arranged to repel each other magnetically, and a buffer structure is also arranged between the adjacent end surfaces. The intermediate magnet (13) slides back and forth between the first magnet (11) and the second magnet (12) along the inner wall of the core tube (10) in response to the change in the rotation state of the sphere, and reciprocates and vibrates in the coil (16). The sliding of the magnet inside the coil causes the magnetic flux in the coil to change, so that the coil output terminal outputs a feeding signal. A mantle layer (4) made of polyimide resin is arranged outside the inner core (3); A flexible material substrate (21) is arranged to fit the outside of the inner core of the outdoor mobile device; An annular radiation layer (22) is engraved on the outer surface of the flexible material substrate (21) by laser etching, and has two radiation monomers arranged opposite to each other, each radiation monomer is respectively provided with at least two layers of concentrically arranged semi-ring structures, and the layers of semi-ring structures of each radiation monomer are sequentially connected layer by layer; A connecting unit (23), comprising a pair of connecting units arranged at the center of the annular radiation layer (22), the two connecting units respectively connected to a radiation monomer, and a chip mounting gap being arranged between the two connecting units (23) for mounting a chip (24); Each connection unit extends outward to the innermost half-ring structure end of the radiation monomer on one side of the connection, and each connection unit is connected to a feeder line to receive power from a kinetic energy power generation device (1) in the core of an outdoor mobile device; wherein the outer surface of the mantle layer (4) is coated with nano copper oxide powder according to the structure of an annular radiation layer (22), and a laser engraving machine scans along a pattern formed by the coating of the nano copper oxide powder on the surface of the mantle layer (4) with a laser power of 15W to form an annular radiation layer (22) and a connection unit (23) made of laser-induced graphene.

2. A method for manufacturing an embedded radiation unit, for the embedded radiation unit according to claim 1, characterized in that the steps include: The first step is to form a core (3) that can be formed into a hollow sphere by injection molding or die casting of a non-polybutadiene material, and to provide a straight through mounting hole on the core (3); The second step is to install the kinetic energy power generation device (1) through the installation hole, and lead the feeder wire corresponding to the kinetic energy power generation device (1) out of the core (3); The third step is to cover the mantle layer (4) structure outside the inner core (3), and to arrange a polyimide resin material as a flexible material substrate (21) on at least part of the outer surface of the mantle layer (4) structure, and to arrange the feeder corresponding to the kinetic energy power generation device (1) to be led out from the middle of the flexible material substrate (21); Step 4: using laser etching to carve an annular radiation layer (22) on the outer surface of the flexible material substrate (21), and carving a connection unit (23) at a position where a feeder line is led out from the middle of the flexible material substrate (21); The fifth step is to install the chip (24) between two connecting units (23) arranged opposite to each other on the flexible material substrate (21), and to arrange the two connecting units (23) to receive power feed from the kinetic energy power generation device (1) in the core through the feeder wires respectively; Step 6: Encapsulate the outer shell (5) outside the flexible material base (21) and the mantle layer (4).

3. The method for manufacturing the embedded radiation unit according to claim 2, characterized in that: In the second step, each kinetic energy power generation device (1) is connected end to end in the inner core (3) to form a regular tetrahedron framework structure inscribed in the inner core 3; In the cavity structure of the inner core (3), a modulation circuit is fixedly arranged inside the regular tetrahedral frame structure formed by the connection of the kinetic energy generating device (1). The modulation circuit is connected to the output end of the coil arranged on the outer layer of the kinetic energy generating device (1), receives the electric energy output by the kinetic energy generating device (1), modulates it, and provides a feeding signal to the feeder line of the rear radiation unit, thereby enhancing the positioning identification signal radiated outward by the annular radiation layer (22), so that the positioning base station in the field can determine the sphere identification number and its movement position according to the positioning identification signal.

4. The method for manufacturing the embedded radiation unit according to claim 3, characterized in that: The mantle layer (4) is entirely made of polyimide resin material. During the formation of the mantle layer, the feeder wire extending from the inner core is retained, and the setting range of the radiation unit (2) is determined based on the feeder wire lead-out end. The polyimide resin material is thickened within this range as a flexible material base (21).

5. The method for manufacturing the embedded radiation unit according to claim 4, characterized in that: The annular radiation layer (22) and the connection unit (23) are both directly generated by etching through the outer surface of the polyimide resin material. The connection unit (23) also directly converts the connection through hole for the feed line to pass through, which is formed in the process of forming the polyimide resin material mantle layer (4), into a laser-induced graphene material by laser engraving, and injects a conductive gel into the connection through hole of the laser-induced graphene material to realize the output of the feed signal.

6. The method for manufacturing the embedded radiation unit according to claim 5, characterized in that: Before engraving the outer surface of the flexible material substrate (21) to form the annular radiation layer (22) by laser etching, the outer surface of the flexible material substrate (21) is preliminarily covered with nano copper oxide powder having a thickness of 100-600 nm according to the pattern of the annular radiation layer (22), and the laser engraving machine scans the surface of the nano copper oxide powder covered on the surface of the mantle layer (4) at a laser power of 15 W to form the annular radiation layer pattern.

7. The method for manufacturing the embedded radiation unit according to claim 6, characterized in that: The interior of the mantle layer (4) is provided with sarin resin or polyurethane, and the surface thereof is provided with polyimide resin material only in a circular area corresponding to the center of each kinetic energy power generation device (1) as a flexible material substrate (21).

8. The method for manufacturing an embedded radiation unit according to claim 6, characterized in that: The flexible material substrate (21) is a PI film which is thick in the middle and thin around the edges and smoothly transitions outward from the direction of the center of the kinetic energy power generation device (1), and the annular radiation layer (22) and the connection unit (23) are directly generated by etching through the outer surface of the PI film.

Images