Positioning system applied to automatic opening and closing intelligent door

Abstract

The utility model relates to the technical field of beacon positioning, and discloses a positioning system applied to an automatic opening and closing intelligent door, which comprises a CPU (central processing unit), a Bluetooth AOA (automatic optical access) positioning unit and a UWB (ultra wide band) positioning unit. The Bluetooth AOA positioning unit comprises a Bluetooth antenna and a Bluetooth module; the Bluetooth AOA positioning unit is located at a first position on a target door; the receiving end of the Bluetooth antenna is used for collecting Bluetooth coordinate signals; the output end of the Bluetooth antenna is electrically connected with the receiving end of the Bluetooth module; the output end of the Bluetooth module is in communication connection with the first input end of the CPU processing unit; the UWB positioning unit comprises a UWB antenna and a UWB module; the UWB positioning unit is located at a second position on the target door; the receiving end of the UWB antenna is used for collecting UWB coordinate signals; the output end of the UWB antenna is electrically connected with the receiving end of the UWB module; the receiving end of the UWB module is in communication connection with the second input end of the CPU processing unit.

Description

TECHNICAL FIELD

[0001] The utility model relates to a beacon positioning technical field, concretely relates to a positioning system applied to automatic switch intelligent door. BACKGROUND

[0002] With the rapid development of smart home technology, the automatic switch intelligent door can realize the detection of target beacon, that is, the user position, through the integration of advanced positioning system and sensor technology, so as to automatically open and close the door when the user approaches or moves away from the door. The positioning system applied to the automatic switch intelligent door not only improves the automation degree of the intelligent door, but also brings more convenient use experience to the user. The user can realize the automatic opening and closing of the door without manual operation, especially in the case of both hands being occupied or carrying heavy objects.

[0003] In related technologies, there are still some technical defects in the positioning system. For example, some systems use single positioning technology, which has the problems of low positioning accuracy and easy interference. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a positioning system applied to an automatic switch intelligent door, which integrates multiple positioning systems to improve the accuracy and reliability of the positioning system.

[0005] In a first aspect, the utility model provides a positioning system applied to an automatic switch intelligent door, which includes a CPU processing unit, a Bluetooth AOA positioning unit and a UWB positioning unit. The Bluetooth AOA positioning unit includes a Bluetooth antenna and a Bluetooth module. The Bluetooth AOA positioning unit is located at a first position on the target door. The receiving end of the Bluetooth antenna is used to collect Bluetooth coordinate signals. The output end of the Bluetooth antenna is electrically connected to the receiving end of the Bluetooth module. The output end of the Bluetooth module is in communication connection with the first input end of the CPU processing unit. The UWB positioning unit includes a UWB antenna and a UWB module. The UWB positioning unit is located at a second position on the target door. The receiving end of the UWB antenna is used to collect UWB coordinate signals. The output end of the UWB antenna is electrically connected to the receiving end of the UWB module. The receiving end of the UWB module is in communication connection with the second input end of the CPU processing unit.

[0006] In an optional embodiment, the Bluetooth module is used to receive the Bluetooth coordinate signals collected by the receiving end of the Bluetooth antenna. The Bluetooth module converts the Bluetooth coordinate signals into Bluetooth positioning signals and sends them to the CPU processing unit. The CPU processing unit is used to receive the Bluetooth positioning signals for position recognition.

[0007] In an alternative embodiment, the UWB module is used for UWB coordinate signals collected by the receiving end of the UWB antenna; the UWB module is used for converting the UWB coordinate signals into UWB positioning signals and sending them to the CPU processing unit; and the CPU processing unit is used for receiving the UWB positioning signals for position recognition.

[0008] In an alternative embodiment, the first position and the second position are in a designated area of the target door.

[0009] In an alternative embodiment, the designated area is a lintel of the target door.

[0010] In an alternative embodiment, the system further comprises a mobile beacon; the mobile beacon is used for sending Bluetooth coordinate signals and UWB coordinate signals.

[0011] In an alternative embodiment, the mobile beacon is a portable device, and the portable device is a smart phone or a key.

[0012] The technical scheme provided in the application can include the following beneficial effects:

[0013] The positioning system applied to the automatic opening and closing intelligent door provided in the application comprises a CPU processing unit, a Bluetooth AOA positioning unit and a UWB positioning unit. The Bluetooth AOA positioning unit comprises a Bluetooth antenna and a Bluetooth module, and the UWB positioning unit comprises a UWB antenna and a UWB module. The Bluetooth AOA positioning unit is located at a first position on a target door, and the UWB positioning unit is located at a second position on the target door. The installation positions of the Bluetooth AOA positioning unit and the UWB positioning unit are described to ensure comprehensive coverage of the target detection area outside the door. The Bluetooth antenna collects Bluetooth coordinate signals, and the UWB antenna collects UWB coordinate signals. The Bluetooth module and the UWB module respectively analyze the Bluetooth coordinate signals and the UWB coordinate signals, extract positioning information and are connected with the CPU processing unit. The CPU processing unit further processes the received positioning information. The above scheme can improve the accuracy and reliability of the positioning system through the fusion of multiple positioning systems. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the specific embodiments of the present application or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the description of the specific embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0015] Figure 1 is a structural block diagram of a positioning system applied to an automatic opening and closing intelligent door according to an embodiment of the present application;

[0016] Figure 2 is a Bluetooth signal transmission schematic diagram according to an embodiment of the present application;

[0017] Figure 3 is a UWB signal transmission schematic diagram according to an embodiment of the present application. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] In the present embodiment, a positioning system applied to an automatic opening and closing intelligent door is provided, Figure 1 is a structural block diagram of a positioning system applied to an automatic opening and closing intelligent door according to an embodiment of the present application, as Figure 1 indicated, the system comprises a CPU processing unit 101, a Bluetooth AOA positioning unit 102 and a UWB positioning unit 103.

[0020] The Bluetooth AOA positioning unit 102 comprises a Bluetooth antenna 1021 and a Bluetooth module 1022; the Bluetooth AOA positioning unit 102 is located at a first position on the target door; the receiving end of the Bluetooth antenna 1021 is used for collecting a Bluetooth coordinate signal; the output end of the Bluetooth antenna 1021 is electrically connected with the receiving end of the Bluetooth module 1022; and the output end of the Bluetooth module 1022 is in communication connection with the first input end of the CPU processing unit 101.

[0021] The UWB positioning unit 103 comprises a UWB antenna 1031 and a UWB module 1032; the UWB positioning unit 103 is located at a second position on the target door; the receiving end of the UWB antenna 1031 is used for collecting a UWB coordinate signal; the output end of the UWB antenna 1031 is electrically connected with the receiving end of the UWB module 1032; and the receiving end of the UWB module 1032 is in communication connection with the second input end of the CPU processing unit 101.

[0022] Further, the first position and the second position are located within a specified area of the target door.

[0023] Further, the specified area is a lintel of the target door.

[0024] Specifically, the CPU processing unit as the core processor of the system is responsible for receiving and processing data from the Bluetooth AOA positioning unit and the UWB positioning unit, executing positioning algorithms, and controlling the opening and closing operations of the smart door. The Bluetooth AOA positioning unit includes a Bluetooth antenna and a Bluetooth module. The Bluetooth antenna is responsible for receiving Bluetooth coordinate signals, while the Bluetooth module processes the signals and sends the processed signals to the CPU processing unit. The UWB positioning unit includes a UWB antenna and a UWB module, located at a second position on the target door. The UWB antenna is responsible for receiving UWB coordinate signals, and the UWB module processes the signals and sends the processed signals to the CPU processing unit.

[0025] The first position and the second position are set within a designated area of the target door, such as the lintel, to ensure accurate reception of signals from the smart key and accurate positioning. Moreover, the lintel position is fixed and not affected by the opening and closing of the door itself.

[0026] The system in this embodiment adopts the fusion of Bluetooth AOA and UWB positioning technologies, which can overcome the limitations of single technology and improve positioning accuracy and anti-interference ability. For example, Bluetooth AOA is suitable for low-cost and low-power scenarios, while UWB can provide higher positioning accuracy, and the combination of the two can take advantage of each in different scenarios.

[0027] In an alternative embodiment, the system further includes a mobile beacon; the mobile beacon is used to send Bluetooth coordinate signals and UWB coordinate signals.

[0028] Further, the mobile beacon is a portable device, and the portable device is a smart phone or a key.

[0029] In this alternative embodiment, the coordinate signal source of the system includes a mobile beacon. The mobile beacon is a device that can send Bluetooth coordinate signals and UWB coordinate signals, and can be identified and positioned by the smart door positioning system during movement. Optionally, the Bluetooth coordinate signals and UWB coordinate signals sent by the mobile beacon are radio frequency signals.

[0030] The mobile beacon is a portable device, such as a smart phone or a key, and the smart door positioning system determines whether to open or close the door based on the signals sent by the mobile beacon. For example, when the user holds the key close to or away from the smart door, the radio frequency module in the key will automatically send Bluetooth coordinate signals and UWB coordinate signals, and the smart door positioning system will perform accurate position recognition and judgment after receiving these signals, thereby determining whether to open or close the smart door. The mobile beacon makes the system more convenient, and users do not need to carry additional equipment to achieve the automatic opening and closing function of the smart door.

[0031] In an alternative embodiment, such as Figure 2As shown, the Bluetooth module 1022 is configured to receive the Bluetooth coordinate signal collected by the receiving end of the Bluetooth antenna 1021; the Bluetooth module 1022 converts the Bluetooth coordinate signal into a Bluetooth positioning signal and sends it to the CPU processing unit 101.

[0032] The CPU processing unit 101 is configured to receive the Bluetooth positioning signal for position recognition.

[0033] In this optional embodiment, the Bluetooth module receives the Bluetooth coordinate signal from the Bluetooth antenna, which contains the position information of the mobile beacon relative to the Bluetooth antenna. The Bluetooth module converts the Bluetooth coordinate signal into a Bluetooth positioning signal that can be processed by the CPU processing unit. After conversion, the Bluetooth module sends the Bluetooth positioning signal to the CPU processing unit.

[0034] After receiving the Bluetooth positioning signal, the CPU processing unit processes it using built-in algorithms or software to identify the precise position of the mobile beacon. Bluetooth positioning has low cost and low power consumption, and is suitable for basic positioning scenarios.

[0035] Optionally, the CPU processing unit includes a signal analysis subunit, a coordinate calculation subunit, and a position prediction subunit, which are used to obtain the specific position information of the mobile beacon relative to the smart door. The signal analysis subunit is responsible for analyzing the received radio frequency signal into a Bluetooth coordinate signal. The coordinate calculation subunit calculates the position coordinates of the mobile beacon based on the analyzed signal data. For Bluetooth positioning signals, the coordinate calculation subunit calculates the beacon position based on the angle of arrival (AOA) and phase difference to obtain the Bluetooth positioning result. The position prediction subunit uses historical position values and current observation values, combined with a prediction algorithm (such as Kalman filtering), to predict the beacon's position in the future period of time, which is used to judge the beacon's movement trend in advance, providing timely and accurate basis for the automatic opening and closing of the smart door, and improving the real-time performance and accuracy of the positioning system. The signal analysis subunit, coordinate calculation subunit, and position prediction subunit work together to realize the analysis of the radio frequency signal, the calculation of the beacon position, and the prediction of the future position, thereby improving the positioning efficiency and accuracy in the smart door scenario.

[0036] In an optional embodiment, as shown in Figure 3 The UWB module 1032 is configured to collect the UWB coordinate signal from the receiving end of the UWB antenna 1031; the UWB module 1032 is configured to convert the UWB coordinate signal into a UWB positioning signal and send it to the CPU processing unit 101.

[0037] The CPU processing unit 101 is configured to receive the UWB positioning signal for position recognition.

[0038] In this optional embodiment, similarly, the UWB module receives the UWB coordinate signal from the UWB antenna, and the UWB coordinate signal contains the position information of the mobile beacon relative to the UWB antenna. The UWB module converts the UWB coordinate signal into a UWB positioning signal that can be processed by the CPU processing unit. After conversion, the UWB module sends the UWB positioning signal to the CPU processing unit. The UWB positioning has the advantages of high precision, high real-time performance and strong anti-interference. It can achieve centimeter-level positioning accuracy and is suitable for scenarios that require high-precision positioning, such as smart home. In addition, the anti-interference ability of UWB technology is also very strong, and it can work stably in complex environments.

[0039] After receiving the UWB positioning signal, the CPU processing unit processes the UWB positioning signal using built-in algorithms or software to identify the precise position of the mobile beacon. For the UWB positioning signal, the coordinate calculation sub-unit calculates the beacon position based on the signal transmission time and distance measurement value to obtain the UWB positioning result. Optionally, the CPU processing unit also includes a fusion positioning sub-unit that fuses the prediction results of the Bluetooth positioning result and the UWB positioning result. The fusion algorithm considers factors such as the weight, accuracy and reliability of the two positioning results to improve the overall positioning accuracy of the system.

[0040] In summary, the system fuses the Bluetooth positioning system and the UWB positioning system to improve the positioning accuracy and reliability while reducing the cost of the device. In addition, the position prediction algorithm is used to predict the beacon position change in advance, improving the real-time performance and accuracy of the positioning system.

[0041] Obviously, the above embodiments are only examples for clarity and do not limit the embodiments. Based on the above description, other different forms of changes or variations can be made by those of ordinary skill in the art. Here, it is not necessary and impossible to exhaust all embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A positioning system applied to an automatic opening and closing smart door, characterized in that, The system includes a CPU processing unit, a Bluetooth AOA positioning unit, and a UWB positioning unit; The Bluetooth AOA positioning unit includes a Bluetooth antenna and a Bluetooth module; the Bluetooth AOA positioning unit is located at a first position on the target door; the receiving end of the Bluetooth antenna is used to collect Bluetooth coordinate signals; the output end of the Bluetooth antenna is electrically connected to the receiving end of the Bluetooth module; the output end of the Bluetooth module is communicatively connected to the first input end of the CPU processing unit. The UWB positioning unit includes a UWB antenna and a UWB module; the UWB positioning unit is located at a second position on the target gate; the receiving end of the UWB antenna is used to collect UWB coordinate signals; the output end of the UWB antenna is electrically connected to the receiving end of the UWB module; the receiving end of the UWB module is communicatively connected to the second input end of the CPU processing unit.

2. The system according to claim 1, characterized in that, The Bluetooth module is used to receive Bluetooth coordinate signals collected by the receiving end of the Bluetooth antenna; the Bluetooth module converts the Bluetooth coordinate signals into Bluetooth positioning signals and sends them to the CPU processing unit; The CPU processing unit is used to receive the Bluetooth positioning signal for location identification.

3. The system according to claim 1, characterized in that, The UWB module is used to collect the UWB coordinate signal from the receiving end of the UWB antenna; the UWB module is used to convert the UWB coordinate signal into a UWB positioning signal and send it to the CPU processing unit. The CPU processing unit is used to receive the UWB positioning signal for location identification.

4. The system according to any one of claims 1 to 3, characterized in that, The first position and the second position are located within the designated area of ​​the target door.

5. The system according to claim 4, characterized in that, The designated area is the lintel of the target door.

6. The system according to claim 1, characterized in that, The system also includes a mobile beacon; the mobile beacon is used to transmit Bluetooth coordinate signals and UWB coordinate signals.

7. The system according to claim 6, characterized in that, The mobile beacon is a portable device, such as a smartphone or a key.

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