Multifunctional distance-measuring and direction-finding positioning card

Abstract

The utility model discloses a multifunctional distance measuring and direction finding positioning card which comprises a shell, a PCB mainboard is arranged in the shell, an MCU main chip, a positioning and orientation assembly and a distance measuring assembly are fixedly installed on the PCB mainboard, and the positioning and orientation assembly and the distance measuring assembly are both electrically connected with the MCU main chip. The positioning and orientation assembly comprises a UWB antenna, a UWB positioning chip and a direction indicating lamp. The card is light and thin in design, the thickness is only 3.1 mm, the weight is only 21 g, the card is convenient to carry, the positioning precision can be greatly improved, the application range can be greatly widened through the arrangement of the barometric altimeter, and the card is not affected by weather; meanwhile, the UWB, the direction indicating lamp, the RGB indicating lamp and the barometric altimeter are used in cooperation, the direction can be accurately indicated, the positioning precision can be guaranteed, information can be transmitted in time through Bluetooth, lost articles can be quickly and accurately found, time and labor are saved, worry is saved, use is convenient, and the device is suitable for popularization.

Description

Technical Field

[0001] This utility model belongs to the field of tracking and positioning technology, specifically relating to a multifunctional ranging and orientation-finding positioning card. Background Technology

[0002] In our busy lives, we inevitably lose or leave some items behind, and for various reasons, we can't remember where they are. When taking our cats and dogs outdoors, they often run away and can't find their owners. The owners are anxious and spend a lot of time and effort searching everywhere, and they may not even be able to find them. These unintentional losses bring inconvenience and economic losses to everyone, and many people are troubled by this. Anti-loss and item tracking are becoming more and more widely used, and they play a certain role and have value.

[0003] To address these issues, a range of anti-loss products have been developed, including anti-loss devices, card anti-loss devices, and item anti-loss devices. Many similar products on the market conventionally use Bluetooth for positioning, such as Bluetooth smart anti-loss devices, pet anti-loss devices, and auxiliary positioning anti-loss devices. These products can only locate the approximate position of the anti-loss device; once the approximate position is reached, the precise direction and distance of the anti-loss device cannot be determined. Therefore, a multi-functional ranging and orientation-finding positioning card is designed to overcome these technical shortcomings. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a multi-functional ranging and orientation positioning card to solve the above-mentioned technical problems.

[0006] (2) Technical solution

[0007] To address the aforementioned technical problems, this utility model provides a multifunctional ranging and orientation positioning card, comprising a housing. Inside the housing is a PCB motherboard, on which an MCU main chip, a positioning and orientation component, and a ranging component are fixedly mounted. Both the positioning and orientation component and the ranging component are electrically connected to the MCU main chip. The positioning and orientation component includes a UWB antenna, a UWB positioning chip, and a direction indicator. The UWB antenna is printed on the upper side of the front of the PCB motherboard. The UWB positioning chip is mounted on the lower side of the front of the PCB motherboard and is electrically connected to the UWB antenna. The MCU main chip is connected to the UWB positioning chip via an SPI communication interface. The ranging component includes an RGB indicator and a barometric altimeter. The barometric altimeter is fixedly connected to the lower side of the front of the PCB motherboard, with a microphone located to its left. The RGB indicator and the direction indicator are both fixedly connected to the upper front of the PCB motherboard. A Bluetooth antenna is printed on the upper front of the PCB motherboard, located next to the UWB antenna. A Bluetooth chip connected to the Bluetooth antenna is fixedly connected to the lower front of the PCB motherboard.

[0008] Preferably, the housing includes a middle frame, a front cover plate, and a rear cover plate. The middle frame is rectangular and made of PC material. The front cover plate and the rear cover plate are fixedly installed inside the front and rear ends of the middle frame, respectively. The PCB motherboard is fixedly installed inside the rear end of the middle frame and located in front of the rear cover plate. Both the front cover plate and the rear cover plate are made of tempered glass.

[0009] Furthermore, a wireless charger is fixedly connected to the center of the front of the PCB motherboard, and a lithium battery is soldered to the center of the front of the PCB motherboard and in front of the wireless charger. A spring contact is fixedly connected to the lower side of the front of the PCB motherboard, and a buzzer is fixedly connected to the interior of the rear end of the middle frame at a position corresponding to the spring contact.

[0010] Furthermore, the PCB motherboard is electrically connected to the lithium battery, a tactile button is fixedly connected to the other side of the lower end of the front of the PCB motherboard, and a button detection module is fixedly connected to the middle of the lower end of the front of the PCB motherboard. The tactile button is electrically connected to the button detection module.

[0011] Furthermore, the direction indicator lights are provided in multiple ways, and the multiple direction indicator lights are arranged in an arc shape, with the RGB indicator light located below the direction indicator lights.

[0012] Furthermore, the MCU main chip, UWB positioning chip, Bluetooth chip, buzzer, direction indicator, RGB indicator, button detection module, barometric altimeter, and microphone are all electrically connected to the PCB motherboard.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention features a lightweight and thin card design, with a thickness of only 3.1mm and a weight of only 21 grams. This makes it easy to carry, and the inclusion of a barometric altimeter significantly improves positioning accuracy and expands its applicability, unaffected by weather conditions. Furthermore, the combined use of UWB, direction indicator lights, RGB indicator lights, and the barometric altimeter ensures precise directional indication and accurate positioning. Bluetooth enables timely information transmission, allowing for quick and accurate retrieval of lost items. This design is time-saving, labor-saving, and convenient, making it suitable for widespread adoption. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model;

[0018] Figure 3 In this utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 In this utility model Figure 2 Enlarged structural diagram at point B;

[0020] Figure 5 This is a schematic diagram illustrating the principle of this utility model.

[0021] The markings in the attached diagram are as follows: 1. Mid-frame; 2. Front cover; 3. Rear cover; 4. PCB motherboard; 5. Wireless charger; 6. Lithium battery; 7. Buzzer; 8. UWB antenna; 9. Bluetooth antenna; 10. Directional indicator light; 11. RGB indicator light; 12. Touch button; 13. Barometric altimeter; 14. Spring; 15. Microphone. Detailed Implementation

[0022] This specific embodiment is a multifunctional ranging and orientation-finding positioning card, the structural diagram of which is shown below. Figures 1-5As shown, the device includes a housing, inside which is a PCB motherboard 4. An MCU main chip, a positioning and orientation component, and a ranging component are fixedly mounted on the PCB motherboard 4. Both the positioning and orientation component and the ranging component are electrically connected to the MCU main chip. The positioning and orientation component includes a UWB antenna 8, a UWB positioning chip, and a direction indicator 10. The UWB antenna 8 is printed on the upper side of the front of the PCB motherboard 4, and the UWB positioning chip is mounted on the lower side of the front of the PCB motherboard 4. The UWB positioning chip is electrically connected to the UWB antenna 8. The MCU main chip is connected to the UWB positioning chip via an SPI communication interface. The ranging component includes an RG... The B indicator light 11 and the barometric altimeter 13 are fixedly connected to the lower front side of the PCB motherboard 4. The barometric altimeter 13 has a microphone 15 on its left side. The RGB indicator light 11 and the direction indicator light 10 are both fixedly connected to the upper front side of the PCB motherboard 4. The Bluetooth antenna 9 is printed on the upper front side of the PCB motherboard 4, next to the UWB antenna 8. The Bluetooth chip connected to the Bluetooth antenna 9 is fixedly connected to the lower front side of the PCB motherboard 4. The MCU main chip is an N32L406CBL7 chip, and the UWB positioning chip is a DW1000 UWB wireless communication chip.

[0023] The barometric altimeter 13 has high measurement accuracy, reaching microbar-level air pressure values, and is suitable for scenarios requiring high-precision measurement. The barometric altimeter 13 is suitable for various environments, including mountains, underwater, and aircraft interiors. It is stable in use and unaffected by weather changes. The barometric altimeter 13 does not require line-of-sight between points or relatively flat terrain, and can directly measure the height difference between two points or the elevation of a point.

[0024] The housing includes a middle frame 1, a front cover 2, and a rear cover 3. The middle frame 1 is rectangular and made of PC material. The front cover 2 and the rear cover 3 are fixedly installed inside the front and rear ends of the middle frame 1, respectively. The PCB motherboard 4 is fixedly installed inside the rear end of the middle frame 1 and located in front of the rear cover 3. Both the front cover 2 and the rear cover 3 are made of tempered glass. The upper middle part of the middle frame 1 has through holes corresponding to the positions of the direction indicator 10 and the RGB indicator 11. The lower middle part of the middle frame 1 has mounting holes corresponding to the positions of the buzzer 7, the tactile button 12, and the barometric altimeter 13. The lower middle part of the middle frame 1 also has mounting holes corresponding to the positions of the buzzer 7 and the tactile button 12. The lower middle part of the front cover 2 has through holes corresponding to the positions of the buzzer 7 and the barometric altimeter 13.

[0025] In addition, a wireless charger 5 is fixedly connected to the center of the front of the PCB motherboard 4, a lithium battery 6 is soldered to the center of the front of the PCB motherboard 4 and in front of the wireless charger 5, a spring piece 14 is fixedly connected to the lower side of the front of the PCB motherboard 4, and a buzzer piece 7 is fixedly connected to the rear end of the middle frame 1 at a position corresponding to the spring piece 14.

[0026] In addition, the PCB motherboard 4 is electrically connected to the lithium battery 6. A tactile button 12 is fixedly connected to the other side of the lower end of the front of the PCB motherboard 4. A button detection module is fixedly connected to the middle of the lower end of the front of the PCB motherboard 4. The tactile button 12 is electrically connected to the button detection module.

[0027] The positioning card is only 3.1mm thick and weighs only 21 grams; and one of the biggest advantages of wireless charging technology is its convenience; users only need to place the device on the charging pad to achieve automatic charging, eliminating the tedious steps of plugging and unplugging charging cables and greatly improving the convenience of charging.

[0028] The buzzer 7 contacts the spring 14. Since there are no moving contact parts, it has a long lifespan and high reliability. It does not generate flyback or radio frequency noise and does not interfere with other circuits. It can emit a variety of pleasant sounds and analog sounds, intermittent sounds, with a pure silver color that is not easily covered by noise. In addition, the spring 14 is preferably made of beryllium copper with gold plating, which can ensure both elasticity and conductivity, and make the contact with the buzzer 7 more stable.

[0029] The tactile button 12 is connected to the main control chip simultaneously for power on / off and time switching. The tactile button 12 switch can be triggered with just a light touch, without the need for force, making it very convenient to operate. The tactile button 12 switch adopts an electronic triggering method, which has a longer service life compared to traditional mechanical switches. The tactile button 12 switch uses a contact method with conductive sheets and contact pieces, making the circuit switch more reliable.

[0030] In addition, there are multiple directional indicator lights 10, and the multiple directional indicator lights 10 are arranged in an arc shape. The RGB indicator lights 11 are located below the directional indicator lights 10. The multiple directional indicator lights 10 correspond to multiple directions. The direction in which the light is lit indicates that the card being looked for is in that direction. By looking in the direction where the light is lit, we can find the item we are looking for.

[0031] In addition, the MCU main chip, UWB positioning chip, Bluetooth chip, buzzer 7, direction indicator 10, RGB indicator 11, button detection module, and barometric altimeter 13 are all electrically connected to the PCB motherboard 4.

[0032] In addition, a microphone 15 is provided between the mobile phone and the card or between the cards to transmit voice wirelessly.

[0033] The multi-functional ranging and orientation-finding positioning card is used in the following scenarios:

[0034] 1. Mobile phone finder card with UWB functionality

[0035] Use the mobile app to view the approximate location of the multi-functional ranging and orientation positioning card. Once you reach the location shown on the app, use a phone with UWB capability to enable the UWB function, search for the location and direction of nearby multi-functional ranging and orientation positioning cards, and then go directly to find them.

[0036] 2. The two cards search for each other.

[0037] A: First, pair the two cards according to the instructions. For card C, double-click the button twice on any screen to start pairing. It will then search for nearby cards that can be paired. Any card (DEFG) will beep twice upon receiving a signal from card C. Press the button again; card C will then beep twice in response. Pairing is successful. Confirm pairing OK.

[0038] B: To find a lost card, double-click the button on any screen to activate the card search function. The indicator light on the card will flash for one minute. If a nearby card is found, there will be a beeping sound. If no card is found, there will be no beeping sound. You can then move to a different location and double-click the button again to continue searching. Repeat the above steps.

[0039] The working principle of this utility model is as follows: the MCU chip is connected to all functions. For long distances, data is transmitted via Bluetooth, while for short distances and precise positioning, UWB transmission is used. There is a rechargeable battery on the PCB motherboard 4. The lithium battery 6 is charged through the wireless charger 5 on the PCB motherboard 4, allowing the card to be used repeatedly.

[0040] The PCB motherboard 4 houses an MCU chip, a UWB positioning chip, a UWB antenna 8, a Bluetooth chip, a Bluetooth antenna 9, a direction indicator 10, an RGB indicator 11, a wireless charger 5, a buzzer 7, a barometric altimeter 13, a touch button 12, and a button detection module. The Bluetooth chip, UWB positioning chip, and main control chip are powered by the PCB motherboard 4. The lithium battery 6 powers the entire circuit motherboard. The MCU chip interacts with the UWB positioning chip via an SPI communication interface. The UWB positioning chip obtains the specific location and transmits it to the MCU main chip. The MCU main chip then transmits the data to the Bluetooth chip. The Bluetooth chip broadcasts its unique feature value in real time. Nearby mobile phones and other smart devices use this feature value to encrypt the location information of the mobile phone and send it to the backend database of a remote server. In this way, the card owner can obtain the remote card location information.

[0041] A light touch on button 12 wakes the MCU main chip from sleep mode to check if the device is working properly. A double touch on the button can find nearby devices. It can also switch the interface of RGB indicator light 11, check the software version, battery level, and real-time time. The buzzer 7 and RGB indicator light 11 mainly work with the light touch button 12 for feedback, card pairing reminders, and multi-dimensional indication. The RGB indicator light 11 is white and can switch between numbers and letters to check the time, battery level, and software version. The barometric altimeter 13 is used to detect altitude, which is very useful when there are tall buildings. The buzzer 7 is used for button feedback, pairing feedback, and search feedback.

[0042] All technical features in this embodiment can be freely combined according to actual needs.

[0043] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A multifunctional ranging and orientation-finding positioning card, characterized in that: The system includes a housing, inside which is a PCB motherboard (4). An MCU main chip, a positioning and orientation component, and a ranging component are fixedly mounted on the PCB motherboard (4). Both the positioning and orientation component and the ranging component are electrically connected to the MCU main chip. The positioning and orientation component includes a UWB antenna (8), a UWB positioning chip, and a direction indicator (10). The UWB antenna (8) is printed on the upper side of the front of the PCB motherboard (4), and the UWB positioning chip is mounted on the lower side of the front of the PCB motherboard (4). The UWB positioning chip is electrically connected to the UWB antenna (8). The MCU main chip communicates via SPI. The communication interface is connected to the UWB positioning chip. The ranging component includes an RGB indicator light (11) and a barometric altimeter (13). The barometric altimeter (13) is fixedly connected to the lower front side of the PCB motherboard (4). A microphone is provided on the left side of the barometric altimeter (13). The RGB indicator light (11) and the direction indicator light (10) are both fixedly connected to the upper front side of the PCB motherboard (4). A Bluetooth antenna (9) is printed on the upper front side of the PCB motherboard (4) and on the side of the UWB antenna (8). A Bluetooth chip connected to the Bluetooth antenna (9) is fixedly connected to the lower front side of the PCB motherboard (4).

2. The multifunctional ranging and direction-finding positioning card according to claim 1, characterized in that: The housing includes a middle frame (1), a front cover plate (2) and a rear cover plate (3). The middle frame (1) is rectangular and made of PC material. The front cover plate (2) and the rear cover plate (3) are fixedly installed inside the front and rear ends of the middle frame (1). The PCB motherboard (4) is fixedly installed inside the rear end of the middle frame (1) and located in front of the rear cover plate (3). The front cover plate (2) and the rear cover plate (3) are both made of tempered glass.

3. A multifunctional ranging and direction-finding positioning card according to claim 2, characterized in that: A wireless charger (5) is fixedly connected to the center of the front of the PCB motherboard (4). A lithium battery (6) is soldered to the center of the front of the PCB motherboard (4) and in front of the wireless charger (5). A spring piece (14) is fixedly connected to the lower side of the front of the PCB motherboard (4). A buzzer piece (7) is fixedly connected to the rear end of the middle frame (1) at a position corresponding to the spring piece (14).

4. A multifunctional ranging and orientation-finding positioning card according to claim 3, characterized in that: The PCB motherboard (4) is electrically connected to the lithium battery (6). A tactile button (12) is fixedly connected to the other side of the lower end of the front of the PCB motherboard (4). A button detection module is fixedly connected to the middle of the lower end of the front of the PCB motherboard (4). The tactile button (12) is electrically connected to the button detection module.

5. A multifunctional ranging and direction-finding positioning card according to claim 1, characterized in that: The direction indicator (10) is provided in multiple ways, and the multiple direction indicator (10) are arranged in an arc shape. The RGB indicator (11) is located below the direction indicator (10).

6. A multifunctional ranging and direction-finding positioning card according to claim 4, characterized in that: The MCU main chip, UWB positioning chip, Bluetooth chip, buzzer (7), direction indicator (10), RGB indicator (11), button detection module, barometric altimeter (13), and microphone (15) are all electrically connected to the PCB motherboard (4).

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