Miniaturized ear stud type positioning device based on hybrid power supply system and active signal enhancement technology

Abstract

The invention provides a miniaturized ear stud type positioning device based on a hybrid power supply system and an active signal enhancement technology, and belongs to the technical field of pet positioning. Comprising a titanium alloy shell, a zirconia ceramic wave-transparent layer is arranged on the inner wall of the titanium alloy shell, a magnetic type ear stud and a safety contact electrode are arranged outside the titanium alloy shell, a transparent nanowire solar film electrically connected with the safety contact electrode is arranged on the surface of the magnetic type ear stud, and a communication layer, a processing layer and a hybrid power supply layer are arranged in the titanium alloy shell. The communication layer comprises a UWB / BLE dual-mode antenna array, an IMU inertial navigation module and a signal processing FPGA module. According to the invention, the problem of long-acting power supply of the micro equipment in a continuous positioning mode can be solved, the cruising ability is high, and the signal transmission reliability in a complex indoor environment (the positioning success rate gt; 95%), the signal penetrability is better, non-sensitive wearing is achieved through the ear stud type design, wearing comfort is achieved, the functions are rich, and positioning-health monitoring integration is achieved by integrating a multi-mode sensor.

Description

Technical Field

[0001] The present invention provides a miniaturized ear-stud type positioning device based on a hybrid power supply system and active signal enhancement technology, belonging to the technical field of pet positioning. Background Art

[0002] As people's living standards continue to improve, many people have started to keep various pets. Pets can understand human nature, and people have a very deep relationship with their pets when raising them. They also have an extraordinary status in the family. In order to avoid pets getting lost, pet locators are usually used to locate them.

[0003] Most existing pet trackers are collar-type trackers, which can basically meet normal usage needs, but still have corresponding defects: when in use, traditional collar-type trackers rely on a single battery for power supply, the miniaturized device has insufficient battery life (usually <72 hours), and frequent charging affects the user experience; poor signal penetration: complex indoor environments (such as multi-story residential buildings, concrete walls) cause severe attenuation of GPS / BLE signals, and the positioning failure rate is >30%; low wearing comfort: the collar is easy for pets to break free and affects the natural behavior of animals; single function: lack of synchronous monitoring capabilities of pets' physiological status. Summary of the Invention

[0004] The technical problems solved by the present invention are: insufficient battery life, poor signal penetration, low wearing comfort and single function.

[0005] In order to solve the technical problem, the technical solution provided by the present invention is: a miniaturized ear stud positioning device based on a hybrid power supply system and active signal enhancement technology, comprising a titanium alloy shell, a zirconium oxide ceramic wave-transparent layer is provided on the inner wall of the titanium alloy shell, a magnetic ear stud and a safety contact electrode are provided on the outside of the titanium alloy shell, and a transparent nanowire solar film electrically connected to the safety contact electrode is provided on the surface of the magnetic ear stud; a communication layer, a processing layer, and a hybrid power supply layer are provided inside the titanium alloy shell, and the communication layer includes a UWB / BLE dual-mode antenna array, an IMU inertial navigation module, and a signal processing FPGA module.

[0006] Furthermore, the processing layer includes a flexible PCB board, a GPS positioning module, a BLE5.2.Mesh network module, and an environmental perception module. The flexible PCB board is electrically connected to the GPS positioning module, the BLE5.2Mesh network module, the environmental perception module, the UWB / BLE dual-mode antenna array, the IMU inertial navigation module, and the signal processing FPGA module.

[0007] Furthermore, the flexible PCB adopts a position compensation algorithm. When GPS fails, 3D positioning is achieved through UWB ranging and inertial navigation IMU, with an error of <1.5 meters.

[0008] Furthermore, the hybrid power supply layer includes a main power supply unit and an auxiliary power supply unit. The main power supply unit includes a lithium battery module and a Qi wireless charging module electrically connected to the lithium battery module. The Qi wireless charging module is used to charge the lithium battery module. The auxiliary power supply unit includes a piezoelectric ceramic sheet, an energy management IC module and a supercapacitor electrically connected to the piezoelectric ceramic sheet, and a micro pendulum mechanism for powering the supercapacitor. The supercapacitor is electrically connected to the transparent nanowire solar film.

[0009] Furthermore, the thickness of the piezoelectric ceramic sheet is 3 mm, the piezoelectric ceramic sheet is fixed to the inner wall of the titanium alloy shell by AB glue, and the super capacitor is welded to the pins of the energy management IC module.

[0010] Furthermore, the thickness of the zirconia ceramic wave-transparent layer is 0.2 mm, and the diameter of the titanium alloy shell is 8 mm and the thickness is 1.2 mm.

[0011] Furthermore, the zirconia ceramic wave-transparent layer is hot-pressed and composited to the inner side of the titanium alloy shell.

[0012] Furthermore, the processing layer also includes an integrated micro PPG sensor and a temperature compensator located in the titanium alloy shell, which are used to monitor the blood flow in the auricle capillaries, calculate the heart rate and blood oxygen in real time, and eliminate the influence of ambient temperature on physiological parameters through the temperature compensator.

[0013] The beneficial effects of the invention are as follows: the invention can solve the problem of long-term power supply of micro devices in continuous positioning mode (target endurance ≥ 30 days), has strong endurance, improves the reliability of signal transmission in complex indoor environments (positioning success rate > 95%), has better signal penetration, and realizes non-contact wearing through ear-stud design, which is comfortable to wear and rich in functions. It integrates multimodal sensors to realize integrated positioning and health monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the present invention.

[0015] Figure 2 Schematic diagram of the communication layer of the present invention.

[0016] Figure 3 Schematic diagram of the processing layer of the present invention.

[0017] Figure 4 Schematic diagram of the hybrid power supply layer of the present invention.

[0018] Figure 5 This is a circuit diagram of the hybrid power supply system of the present invention.

[0019] Figure 6This is a flow chart of the signal enhancement algorithm of the present invention.

[0020] 101. Titanium alloy shell; 102. Zirconia ceramic wave-transparent layer; 103. Magnetic earrings; 104. Transparent nanowire solar film;

[0021] 201. UWB / BLE dual-mode antenna array; 202. IMU inertial navigation module; 203. Signal processing FPGA module;

[0022] 301. Flexible PCB board; 302. GPS positioning module; 303. BLE5.2 Mesh network module; 304. Environmental sensing module; 401. Lithium battery module; 402. Qi wireless charging module; 403. Piezoelectric ceramic chip; 404. Energy management IC module; 405. Supercapacitor; 406. Micro pendulum mechanism. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] According to the attached Figure 1 、 2 , 3, 6: The present invention provides a miniaturized ear-stud positioning device based on a hybrid power supply system and active signal enhancement technology, including a titanium alloy shell 101, wherein a communication layer, a processing layer, and a hybrid power supply layer are provided inside the titanium alloy shell 101, the communication layer includes a UWB / BLE dual-mode antenna array 201, an IMU inertial navigation module 202, and a signal processing FPGA module 203, the processing layer includes a flexible PCB board 301, a GPS positioning module 302, a BLE5.2Mesh network module 303, and an environmental perception module 304, the flexible PCB board 301 and the GPS positioning Module 302, BLE5.2Mesh network module 303, environmental perception module 304, UWB / BLE dual-mode antenna array 201, IMU inertial navigation module 202, and signal processing FPGA module 203 are all electrically connected. The flexible PCB board 301 adopts a position compensation algorithm. When the GPS fails, the environmental perception module 304 senses and detects the GPS receiving signal strength. If it is greater than the threshold, GPS positioning is used. If it is less than the threshold, UWB scanning is performed. 3D positioning is achieved through UWB ranging and inertial navigation IMU with an error of <1.5 meters. A dual-frequency communication architecture is adopted: GPS / BLE 5.2 dual-mode standby, automatic switching to low power consumption mode, dynamic beamforming, and indoor reflected signals are used to enhance penetration capability through the UWB / BLE dual-mode antenna array 201.

[0025] As an optional embodiment, a zirconia ceramic wave-transparent layer 102 is provided on the inner wall of the titanium alloy shell 101. The zirconia ceramic wave-transparent layer 102 is hot-pressed and composited to the inner side of the titanium alloy shell 101. The thickness of the zirconia ceramic wave-transparent layer 102 is 0.2 mm. The diameter of the titanium alloy shell 101 is 8 mm and the thickness is 1.2 mm. The outside of the titanium alloy shell 101 is provided with a magnetic earring 103 and a safety contact electrode. Specifically, the wave-transparent layer is replaced with a polyimide-based composite material with a dielectric constant of <6. The piezoelectric sheet is removed, and the battery life is reduced to 7 days. It is used for budget-sensitive products to reduce costs.

[0026] As the instruction manual Figure 1 、 4 5: The magnetic earrings 103 have a tensile strength of ≥5N to prevent them from falling off the pet's ears. The surface of the magnetic earrings 103 is provided with a transparent nanowire solar film 104 electrically connected to the safety contact electrode. The hybrid power supply layer includes a main power supply unit and an auxiliary power supply unit. The main power supply unit includes a lithium battery module 401 and a Qi wireless charging module 402 electrically connected to the lithium battery module 401. The Qi wireless charging module 402 is used to charge the lithium battery module 401. The auxiliary power supply unit includes a piezoelectric ceramic sheet 403, an energy management IC module 404 electrically connected to the piezoelectric ceramic sheet 403, and a super capacitor 405 for charging the super A micro-pendulum mechanism 406 is powered by a capacitor 405. The supercapacitor 405 is electrically connected to the transparent nanowire solar film 104. The piezoelectric ceramic sheet 403 is 3 mm thick and is fixed to the inner wall of the titanium alloy shell 101 using AB glue. The supercapacitor 405 is welded to the pins of the energy management IC module 404. Specifically, for kinetic energy generation, the micro-pendulum mechanism 406 uses the natural shaking of the pet's ears to generate electricity at a frequency of 2-5 Hz and a conversion efficiency of ≥15%. For light energy collection, the transparent nanowire solar film 104 is integrated into the magnetic earring 103, and the output power is 0.8 mW / cm under 200 lux illumination. 2 , Adaptive management IC: Prioritizes the solar / kinetic energy input path voltage threshold of 2.7V, battery switch: activates the lithium battery only when the supercapacitor voltage is <2.4V.

[0027] As an optional embodiment, the processing layer also includes an integrated micro PPG sensor and a temperature compensator located in the titanium alloy shell 101, which are used to monitor the blood flow of the auricle capillaries and calculate the heart rate and blood oxygen in real time. The temperature compensator is used to eliminate the influence of the ambient temperature on the physiological parameters. Figure 6 As shown, the environment perception module detects

[0028] Example 1: Indoor Loss Scenario

[0029] When a pet enters the elevator, GPS becomes ineffective → the UWB pulse signal is automatically activated;

[0030] Relaying location data to the owner's mobile phone via the home Mesh network

[0031] The owner APP displays the real-time plane position with an accuracy of 0.8m and floor information

[0032] Example 2: Power supply scenario

[0033] Outdoor on a sunny day: solar power accounts for 85% and kinetic energy accounts for 12%;

[0034] Indoor use at night: Supercapacitor power supply supports 8 hours + lithium battery backup

[0035] The present invention can solve the problem of long-term power supply for micro devices in continuous positioning mode (target endurance ≥ 30 days), has strong endurance, improves signal transmission reliability in complex indoor environments (positioning success rate > 95%), has better signal penetration, and achieves seamless wearing through earring design. It is comfortable to wear, has rich functions, and integrates multimodal sensors to achieve integrated positioning and health monitoring.

[0036] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A miniaturized ear-stud positioning device based on a hybrid power supply system and active signal enhancement technology, characterized by: The invention comprises a titanium alloy shell (101), wherein a zirconium oxide ceramic wave-transparent layer (102) is provided on the inner wall of the titanium alloy shell (101), a magnetic earring (103) and a safety contact electrode are provided on the outside of the titanium alloy shell (101), a transparent nanowire solar film (104) electrically connected to the safety contact electrode is provided on the surface of the magnetic earring (103), and a communication layer, a processing layer, and a hybrid power supply layer are provided inside the titanium alloy shell (101), wherein the communication layer comprises a UWB / BLE dual-mode antenna array (201), an IMU inertial navigation module (202), and a signal processing FPGA module (203).

2. The miniaturized ear-stud positioning device based on a hybrid power supply system and active signal enhancement technology according to claim 1, characterized in that: The processing layer comprises a flexible PCB board (301), a GPS positioning module (302), a BLE5.2 Mesh network module (303), and an environment perception module (304); the flexible PCB board (301) is electrically connected to the GPS positioning module (302), the BLE5.2 Mesh network module (303), the environment perception module (304), the UWB / BLE dual-mode antenna array (201), the IMU inertial navigation module (202), and the signal processing FPGA module (203).

3. The miniaturized ear-stud positioning device based on a hybrid power supply system and active signal enhancement technology according to claim 2, characterized in that: The flexible PCB (301) adopts a position compensation algorithm, and when GPS fails, 3D positioning is achieved through UWB ranging and inertial navigation IMU, with an error of less than 1.5 meters.

4. The miniaturized ear-stud positioning device based on a hybrid power supply system and active signal enhancement technology according to claim 1, characterized in that: The hybrid power supply layer comprises a main power supply unit and an auxiliary power supply unit. The main power supply unit comprises a lithium battery module (401), a Qi wireless charging module (402) electrically connected to the lithium battery module (401), and the Qi wireless charging module (402) is used to charge the lithium battery module (401). The auxiliary power supply unit comprises a piezoelectric ceramic sheet (403), an energy management IC module (404) electrically connected to the piezoelectric ceramic sheet (403), and a super capacitor (405), and a micro pendulum mechanism (406) for supplying power to the super capacitor (405). The super capacitor (405) is electrically connected to the transparent nanowire solar film (104).

5. The miniaturized ear-stud positioning device based on a hybrid power supply system and active signal enhancement technology according to claim 4, characterized in that: The piezoelectric ceramic sheet (403) has a thickness of 3 mm and is fixed to the inner wall of the titanium alloy housing (101) by AB glue. The super capacitor (405) is welded to the pins of the energy management IC module (404).

6. The miniaturized ear-stud positioning device based on a hybrid power supply system and active signal enhancement technology according to claim 1, characterized in that: The thickness of the zirconium oxide ceramic wave-transmitting layer (102) is 0.2 mm, and the diameter of the titanium alloy shell (101) is 8 mm and the thickness is 1.2 mm.

7. The miniaturized ear-stud positioning device based on a hybrid power supply system and active signal enhancement technology according to claim 1, characterized in that: The zirconium oxide ceramic wave-transmitting layer (102) is hot-pressed and composited on the inner side of the titanium alloy shell (101).

8. The miniaturized ear-stud positioning device based on a hybrid power supply system and active signal enhancement technology according to claim 1, characterized in that: The processing layer also includes an integrated micro PPG sensor and a temperature compensator located in the titanium alloy shell (101), which are used to monitor the blood flow of the auricle capillaries and calculate the heart rate and blood oxygen in real time. The temperature compensator is used to eliminate the influence of the ambient temperature on the physiological parameters.

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