802.11 ah-based UWB distance measuring device

Abstract

The utility model belongs to the technical field of UWB distance measurement, and discloses a UWB distance measurement device based on 802.11 ah, which comprises a distance measurement base station and a plurality of distance measurement terminals. The ranging base station comprises a base station control module which is connected with and controls a UWB base station module and an 802.11 ah hotspot module. The distance measuring terminal comprises a terminal control module which is connected with and controls a UWB terminal module and an 802.11 ah terminal module. High-precision UWB range finding and positioning are realized between the UWB base station module of the range finding base station and the range finding terminal and the plurality of UWB terminal modules, and the problem of insufficient precision of the traditional range finding technology is solved. Meanwhile, 802.11 ah hot spot modules and 802.11 ah terminal modules of the ranging base station and the ranging terminal achieve 802.11 ah communication, all ranging data can be sent to the ranging base station in a unified mode, low-power-consumption and long-distance transmission of the ranging data is achieved, and the coverage range of the UWB ranging system is widened.

Description

Technical Field

[0001] This utility model belongs to the field of UWB ranging technology, specifically relating to a UWB ranging device based on 802.11ah. Background Technology

[0002] With the rapid development of Internet of Things (IoT) technology, the demand for precise positioning and ranging of objects in indoor and outdoor environments is increasing. Many application scenarios, such as intelligent warehouse logistics management, industrial automated production line monitoring, intelligent elderly care and healthcare facilities, and personnel and asset tracking in large commercial venues, all have an urgent need for accurate location tracking of target objects.

[0003] Traditional ranging technologies, such as positioning solutions based on Bluetooth, Wi-Fi, or GPS, each have certain limitations. While Bluetooth technology has low power consumption, its transmission distance is short and its positioning accuracy is poor in complex environments, and it is easily affected by interference. Wi-Fi technology has limitations in coverage and poor stability when multiple devices are connected, making it difficult to meet the high-precision ranging requirements of large-scale deployment scenarios. GPS, on the other hand, suffers severe signal attenuation indoors or in obstructed environments, making it almost impossible to achieve effective positioning.

[0004] Therefore, existing technologies employ Ultra-Wideband (UWB) technology to achieve high-performance positioning. UWB technology, with its advantages of ultra-wide bandwidth, high temporal resolution, and strong resistance to multipath interference, can theoretically achieve high-precision ranging and positioning, with accuracy reaching the centimeter level or even higher. However, when relying solely on UWB technology to build a positioning system, the challenge of limited transmission distance remains, especially in large-scale industrial plants and parks, where it is impossible to efficiently transmit ranging data over long distances to control centers or the cloud for centralized processing and analysis. This bottleneck restricts the widespread application of UWB technology in certain scenarios. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the short data transmission distance of the existing UWB ranging and positioning technology, thereby providing a UWB ranging device based on 802.11ah.

[0006] A UWB ranging device based on 802.11ah includes a ranging base station and multiple ranging terminals;

[0007] The ranging base station includes a base station control module, a UWB base station module, and an 802.11ah hotspot module; the base station control module is connected to and controls the UWB base station module and the 802.11ah hotspot module respectively.

[0008] The ranging terminal includes a terminal control module, a UWB terminal module, and an 802.11ah terminal module; the terminal control module is connected to and controls the UWB terminal module and the 802.11ah terminal module respectively.

[0009] The UWB base station module and the UWB terminal module, and the UWB terminal module and the UWB terminal module are used to generate ranging data through UWB ranging; the 802.11ah hotspot module and the 802.11ah terminal module are used to transmit ranging data through 802.11ah.

[0010] Furthermore, the ranging base station also includes a network communication module, which connects the base station control module and the backend server for transmitting ranging data.

[0011] Furthermore, the network communication module is one of a Cat1 unit and a mobile network unit.

[0012] Furthermore, the base station control module includes an MCU.

[0013] Furthermore, the base station control module also includes a storage unit for storing the ranging data.

[0014] Furthermore, the ranging base station also includes a base station power supply module, which is used to provide operating power to the ranging base station.

[0015] Furthermore, the terminal control module includes an MCU.

[0016] Furthermore, the ranging terminal also includes a terminal power supply module, which is used to provide operating power to the ranging terminal.

[0017] Beneficial Effects: This utility model discloses a UWB ranging device based on 802.11ah, including a ranging base station and multiple ranging terminals. The ranging base station includes a base station control module, a UWB base station module, and an 802.11ah hotspot module. The base station control module connects to and controls both the UWB base station module and the 802.11ah hotspot module. The ranging terminals include a terminal control module, a UWB terminal module, and an 802.11ah terminal module. The terminal control module connects to and controls both the UWB terminal module and the 802.11ah terminal module. The UWB base station module of the ranging base station and the ranging terminals communicates with the multiple UWB terminal modules to achieve high-precision ranging and positioning, solving the problem of insufficient accuracy in traditional ranging technologies. Simultaneously, the 802.11ah hotspot module of the ranging base station and the ranging terminals communicates with the 802.11ah terminal modules via 802.11ah, enabling all ranging data to be uniformly sent to the ranging base station. This achieves low-power, long-distance transmission of ranging data, expanding the coverage of the UWB ranging system. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic block diagram illustrating the connection structure between the ranging base station and multiple ranging terminals of this utility model.

[0020] Figure 2 This is a schematic block diagram of the connection structure between the ranging base station and the ranging terminal of this utility model; Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0022] In the description of this application, it should be understood that "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. Unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] Reference Figure 1 and Figure 2 As shown, this embodiment discloses a UWB ranging device based on 802.11ah, including a ranging base station and multiple ranging terminals. The ranging base station includes a base station control module, a UWB base station module, and an 802.11ah hotspot module. The base station control module is connected to and controls the UWB base station module and the 802.11ah hotspot module. The ranging terminals include a terminal control module, a UWB terminal module, and an 802.11ah terminal module. The terminal control module is connected to and controls the UWB terminal module and the 802.11ah terminal module. The UWB base station module and the UWB terminal module, and the UWB terminal module and the UWB terminal module are used to form ranging data through UWB ranging. The 802.11ah hotspot module and the 802.11ah terminal module are used to transmit ranging data through 802.11ah.

[0024] In the attached diagram, the dashed lines represent UWB signal connections, and the dotted lines represent 802.11ah signal connections.

[0025] In this embodiment, the UWB base station module of the ranging base station and the ranging terminal completes UBW ranging with multiple UWB terminal modules to achieve high-precision ranging and positioning, solving the problem of insufficient accuracy in traditional ranging technologies. Simultaneously, the 802.11ah hotspot module of the ranging base station and the ranging terminal achieves 802.11ah communication with the 802.11ah terminal modules, enabling all ranging data to be uniformly sent to the ranging base station. This achieves low-power, long-distance transmission of ranging data, expanding the coverage of the UWB ranging system.

[0026] In this embodiment, the ranging base station further includes a network communication module, which connects the base station control module and the backend server for transmitting ranging data. Preferably, the network communication module is either a Cat1 unit or a mobile network unit. The ranging base station also establishes a network connection with the backend server through the network communication module, thereby sending the received ranging data to the backend server for unified management.

[0027] Specifically, the base station control module includes an MCU, and the terminal control module includes an MCU. The ranging base station, through the base station control module, controls the UWB base station module and the UWB terminal module of the ranging terminal to achieve UWB ranging and acquire ranging data. It also controls the 802.11ah hotspot module to connect to the 802.11ah terminal module of the ranging terminal to acquire ranging data. Finally, it controls the network communication module to connect to the backend server and transmit the received ranging data to the backend server. The ranging terminal, through the terminal control module, controls the UWB terminal module to connect to the UWB base station module of the ranging base station and the UWB terminal modules of other ranging terminals to achieve UWB ranging and acquire ranging data. It also controls the 802.11ah terminal module to connect to the 802.11ah hotspot module of the ranging base station to send ranging data.

[0028] In this embodiment, the 802.11ah hotspot module of the ranging base station operates in AP mode, binding its corresponding interface to a DHCP server. When the 802.11ah terminal of the ranging terminal connects, an IP address is assigned to it. The 802.11ah terminal of the ranging terminal operates in STA module mode, connecting to the 802.11ah hotspot module of the ranging base station, obtaining the assigned IP address, and sending ranging data through a negotiated protocol.

[0029] As a further improvement to this embodiment, the base station control module further includes a storage unit for storing the ranging data. In some embodiments of this invention, the storage unit is also used to store configuration information of the ranging base station.

[0030] In this embodiment, the ranging base station further includes a base station power supply module, which provides operating power to the ranging base station. Furthermore, the ranging terminal also includes a terminal power supply module, which provides operating power to the ranging terminal. Both the base station power supply module and the terminal power supply module include a rectifier unit for converting the mains frequency power supply into a low-voltage DC power supply to provide operating power to the UWB ranging device.

[0031] In some embodiments of this invention, the UWB ranging device includes one ranging base station and three ranging terminals. In other embodiments of this invention, the UWB ranging device includes one ranging base station and more than three ranging terminals, enabling it to cover a larger working range.

[0032] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A UWB ranging device based on 802.11ah, characterized in that, Includes ranging base stations and multiple ranging terminals; The ranging base station includes a base station control module, a UWB base station module, and an 802.11ah hotspot module; the base station control module is connected to and controls the UWB base station module and the 802.11ah hotspot module respectively. The ranging terminal includes a terminal control module, a UWB terminal module, and an 802.11ah terminal module; the terminal control module is connected to and controls the UWB terminal module and the 802.11ah terminal module respectively. The UWB base station module and the UWB terminal module, and the UWB terminal module and the UWB terminal module are used to generate ranging data through UWB ranging; the 802.11ah hotspot module and the 802.11ah terminal module are used to transmit ranging data through 802.11ah.

2. The UWB ranging device based on 802.11ah according to claim 1, characterized in that, The ranging base station also includes a network communication module, which connects the base station control module and the backend server for transmitting ranging data.

3. The UWB ranging device based on 802.11ah according to claim 2, characterized in that, The network communication module is one of a Cat1 unit and a mobile network unit.

4. The UWB ranging device based on 802.11ah according to claim 1, characterized in that, The base station control module includes an MCU.

5. A UWB ranging device based on 802.11ah according to claim 4, characterized in that, The base station control module also includes a storage unit for storing the ranging data.

6. A UWB ranging device based on 802.11ah according to claim 1, characterized in that, The ranging base station also includes a base station power supply module, which is used to provide operating power to the ranging base station.

7. A UWB ranging device based on 802.11ah according to claim 1, characterized in that, The terminal control module includes an MCU.

8. A UWB ranging device based on 802.11ah according to claim 1, characterized in that, The ranging terminal also includes a terminal power supply module, which is used to provide operating power to the ranging terminal.

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