LDSW-based anti-lost device and group system
By implementing an anti-loss device group system using LDSW technology, the problems of limited usage and short anti-loss distance in existing anti-loss device groups are solved. It provides a low-power, long-distance anti-loss solution that supports networking and remote management of multiple anti-loss devices.
Patent Information
- Application Number
- CN202520062743.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-10
AI Technical Summary
Existing anti-loss devices are mostly used in pairs, rarely in groups, have short anti-loss distances, cannot achieve long-distance communication, and have limited information transmission capabilities.
Employing LDSW technology, the device achieves self-organizing networking functionality through the LDSW chip. Combined with ultra-long-distance DNA detection sleep-wake technology, multi-channel collaborative work, and dynamic timing technology, it supports networking of multiple anti-loss devices. Using a wireless charging module and low-power design, it realizes an anti-loss device group system.
It realizes a low-power, long-distance anti-loss device group system, supports hundreds of anti-loss devices, and has an anti-loss distance of up to hundreds of meters. It also has multi-functional alarm and information display capabilities.
Smart Images
Figure CN223797004U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-loss device technology, and in particular to an anti-loss device and group system based on LDSW. Background Technology
[0002] Most existing anti-loss devices use wireless technologies such as UWB and BLE. These technologies have the following limitations:
[0003] 1. Most existing anti-loss devices are used in pairs, and few are used in groups.
[0004] 2. Existing anti-loss devices are basically fixed in distance, and will sound an alarm when the distance is exceeded, and cannot transmit more information in both directions.
[0005] 3. Existing anti-loss devices have a short anti-loss distance, generally a few meters to tens of meters, and cannot go further.
[0006] LDSW, short for Low Duty Cycle Smart Wireless, is a new low-power wireless intelligent communication technology operating in the 2.45GHz ISM unlicensed band. LDSW is characterized by its low duty cycle and multi-channel collaborative operation. Through ultra-long-range "DNA detection sleep-wake technology," "multi-channel collaborative operation technology," "dynamic timing technology," and "ultra-low power wireless self-organizing network technology," it fulfills all the technical requirements of the Institute of Electrical and Electronics Engineers (IEEE) for an "ideal active electronic tag," while also achieving lower power consumption, longer range, and more flexible and reliable operation. Utility Model Content
[0007] The present invention aims to provide an anti-loss device and group system based on LDSW, so as to provide a low-power, long-distance anti-loss device solution.
[0008] The technical solution to achieve the purpose of this utility model is as follows:
[0009] An anti-loss device based on LDSW includes an LDSW chip, a battery, a buzzer, and at least one button;
[0010] The LDSW chip is configured as a slave device.
[0011] The LDSW chip is a SoC integrated circuit with wireless communication and MCU information processing functions, and is connected to the button and the buzzer.
[0012] Furthermore, the anti-loss device also includes a wireless charging module for charging the battery, which is a lithium battery.
[0013] Furthermore, the anti-loss device includes a card-shaped sealed housing with dimensions equal to those of a standard access card.
[0014] Furthermore, the anti-loss device also includes LED indicator lights.
[0015] A group system of anti-loss devices based on LDSW includes a master device and at least one terminal device; the terminal device is an anti-loss device as described above.
[0016] The main device includes an LDSW chip, a display module, and an input module;
[0017] The LDSW chip is configured as a master device and is connected to the display module and the input module.
[0018] Furthermore, the input module includes 3-4 buttons, which are directly connected to the LDSW chip.
[0019] Furthermore, the display module is an e-ink screen.
[0020] Furthermore, the main device also includes a wireless charging module and a lithium battery. The wireless charging module is used to charge the lithium battery, and the lithium battery supplies power to other circuits.
[0021] Furthermore, the main device includes a card-shaped sealed housing with dimensions equal to those of a standard access card.
[0022] This utility model's LDSW-based anti-loss device can be used in groups over long distances, with a quantity of up to several hundred units and an anti-loss distance of several hundred meters. Attached Figure Description
[0023] Figure 1 This is a block diagram of the anti-loss device group system of this utility model;
[0024] Figure 2 This is a system block diagram of the main device of the anti-loss device of this utility model;
[0025] Figure 3 This is a system block diagram of the anti-loss device terminal equipment of this utility model. Detailed Implementation
[0026] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.
[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.
[0028] like Figure 1 As shown, this utility model provides an anti-loss device group system based on LDSW. The anti-loss device group system includes a master device and multiple terminal devices (i.e., anti-loss devices). Both the master device and the terminal devices contain an LDSW chip and are configured with master-slave mode and device address ID. The master device and the terminal devices, as well as the terminal devices themselves, communicate via the LDSW protocol to achieve self-organizing networking. A heartbeat signal is used to maintain the connection, thus achieving the anti-loss function.
[0029] The LDSW chip is a SoC integrated circuit with wireless communication and MCU information processing functions. It also has reserved interfaces for data transmission, sensors, and controllers, enabling it to collect sensor data, object identification information, and control devices. The terminal device periodically "listens" for signals from the master device on a public or dedicated channel, and transmits information when alarm conditions are met or when triggered by a timer.
[0030] The LDSW chip can be used for positioning. The LDSW chip includes a Radio Frequency Signal Strength Identification Unit (RSSI), which can calculate the distance between the master device and the terminal device by receiving the RSSI signal strength indicator. The terminal device can upload status data in an agreed time slot according to its address; the status data includes RSSI values, distance values, or alarms.
[0031] For the master device, if it does not receive a status signal from a terminal device within 1 second of sending a heartbeat signal (when the terminal device detects that the RSSI signal is less than the set threshold), it indicates that the terminal device is disconnected from the network. The master device will issue an alarm indication, which includes a buzzer sounding to indicate the alarm and an e-ink display showing the number and distance value of the currently disconnected terminal device.
[0032] If a terminal device does not receive a heartbeat signal from the master device within the specified time interval, it indicates that the terminal device has left the network, and the terminal device will give a prompt tone through a buzzer or other sound-emitting device.
[0033] like Figure 2 As shown, in this embodiment, the main device is an independent device containing a wireless charging module responsible for charging the lithium battery, which then powers other circuits. The LDSW chip is the control core of the main device, containing RF wireless transceiver and MCU functions. The LDSW chip is connected to a display screen. To reduce power consumption, the display screen uses an ultra-low power e-ink screen, and the LDSW chip drives the e-ink screen to display status information, such as distance information from the terminal device. The LDSW chip is connected to a buzzer, driving the buzzer to emit various prompt sounds. In this embodiment, the main device has 3-4 buttons, each directly connected to the LDSW chip to perform functions such as power-on, scrolling up, scrolling down, and confirmation.
[0034] In practical applications, the main device can also be equipped with LED indicators to provide functions such as alarm indication and power indication.
[0035] like Figure 3 As shown, the terminal device contains a wireless charging module responsible for charging the lithium battery, which in turn powers other circuits. The LDSW chip is the control core of the terminal device, containing RF wireless transceiver and MCU functions. The LDSW chip connects to components such as a buzzer to provide alarm functionality, driving the buzzer to emit an alert sound and driving the LED indicator to flash. The terminal device has a button PWR, which is connected to the LDSW chip and used to power on the terminal device and confirm pairing with the host device. In specific applications, the terminal device can also be equipped with LED indicators to provide alarm indication and battery level indication functions.
[0036] The LDSW chip in the master device and the terminal device can be the same chip, and can be configured as a master device or a terminal device through software or hardware settings.
[0037] The usage instructions for the anti-loss device group system are as follows:
[0038] The main device is carried by the manager, and the terminal devices are installed on various items that require anti-loss alarms (such as suitcases, valuables, pets, etc.).
[0039] The main device is equipped with a display screen and multiple buttons (such as a query button, page-turning button, and setting / confirming button). Terminal devices within a group can be numbered and have different alarm distances set for each, or they can be numbered via a mobile terminal or other host computer, with different alarm distances set for each. The terminal device's number information is stored on the main device. When a terminal device exceeds its distance from the main device, the main device immediately alarms and displays the terminal device's number and distance information on the display screen. While the main device is searching for a terminal device, it can continuously update the displayed distance to that terminal device. The main device can also specify a terminal device and remotely control it to sound an alarm for easy location. Based on the LDSW protocol standard, it can implement anti-loss device group functionality, enabling one-to-many long-distance anti-loss management.
[0040] In this embodiment, the anti-loss device adopts a card-type fully sealed, energy-saving design. The lithium battery is non-removable and is charged via a wireless charging module. It has waterproof, dustproof, and antimagnetic protection effects and can work continuously for more than three months.
[0041] In this embodiment, both the main device and the terminal device adopt a card-type design, with their length and width conforming to the standard access card size. To achieve the card-type design, the LDSW chip, antenna, buttons, buzzer, wireless charging module, etc., are all mounted on the circuit board; the buzzer is an ultra-thin buzzer, with a thickness as low as 1.5mm; the battery is a plate-shaped lithium battery, with a thickness as low as 1.5mm; the circuit board adopts a thin board design, with a thickness of 1.0mm or less; the buttons are capacitive touch buttons or ultra-thin tactile buttons, with a thickness as low as 0.5mm; the display screen is a small-sized ultra-low power e-ink screen, such as 1.54 inches, with a thickness as low as 1.0mm.
[0042] This utility model's LDSW-based anti-loss device can be used in groups of up to several hundred, and with software support, it can achieve the following functions:
[0043] 1. The anti-loss distance can be freely set on the main device;
[0044] 2. The main device of the anti-loss device can display the number of terminal devices that are beyond the distance;
[0045] 3. The main device can display the distance to the terminal device, locate the terminal device, and control the terminal device to sound an alarm.
[0046] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.
Claims
1. An LDSW-based anti-lost device, characterized in that: The LDSW chip, a battery, a buzzer and at least one button; The LDSW chip is configured in a device mode; The LDSW chip is a SoC integrated circuit, having wireless communication and MCU information processing functions, and is connected with the button and the buzzer.
2. The LDSW-based anti-lost device of claim 1, wherein: The anti-lost device further comprises a wireless charging module for charging the battery, and the battery is a lithium battery.
3. The LDSW-based anti-lost device of claim 2, wherein: The anti-lost device comprises a card-shaped sealed housing with a standard access card size.
4. The LDSW-based anti-lost device of claim 1, wherein: The anti-lost device further comprises an LED indicator.
5. A group system of anti-lost devices based on LDSW, characterized in that: The system comprises a master device and at least one terminal device, and the terminal device is the anti-lost device of any one of claims 1-4. The master device comprises a LDSW chip, a display module and an input module. The LDSW chip is configured in a master device mode and is connected with the display module and the input module.
6. The LDSW-based anti-lost device group system of claim 5, wherein: The input module comprises 3-4 buttons, which are directly connected with the LDSW chip.
7. The LDSW-based anti-lost device group system of claim 5, wherein: The display module is an ink screen.
8. The LDSW-based anti-lost device group system of claim 5, wherein: The master device further comprises a wireless charging module and a lithium battery, the wireless charging module is used for charging the lithium battery, and the lithium battery is used for supplying power to other circuits.
9. The LDSW-based anti-lost device group system of claim 8, wherein: The master device comprises a card-shaped sealed housing with a standard access card size.