AR glasses equipment and positioning circuit

Abstract

The utility model provides AR glasses equipment and a positioning circuit. The AR glasses equipment comprises a signal receiving circuit and a multimode satellite navigation chip, the signal receiving circuit comprises an active antenna and an impedance matching circuit; the active antenna is connected with the impedance matching circuit; the impedance matching circuit is connected with the multimode satellite navigation chip; the active antenna is used for receiving a satellite navigation signal, the impedance matching circuit is used for transmitting the satellite navigation signal to the multi-mode satellite navigation chip, and the multi-mode satellite navigation chip is used for determining positioning information corresponding to the satellite navigation signal, so that the AR glasses equipment has positioning capability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of device navigation, and particularly to an AR glasses device and a positioning circuit. BACKGROUND

[0002] In the related art, the navigation function of an Augmented Reality (AR) glasses device is generally realized by the navigation function of a mobile terminal that has a communication connection with the AR glasses device, and the AR glasses device itself does not have a navigation and positioning capability. However, in the case where only the AR glasses device is carried and no mobile terminal is carried, the AR glasses device cannot perform navigation. Correspondingly, in the case where the AR glasses device is lost, since the positioning information of the AR glasses device cannot be obtained, the convenience of searching for the AR glasses device is poor. CONTENT OF THE UTILITY MODEL

[0003] The main purpose of the present application is to provide an AR glasses device and a positioning circuit, and to solve the technical problem that the AR glasses device cannot perform navigation and the convenience of searching for the AR glasses device is poor due to the fact that the AR glasses device itself does not have a navigation and positioning capability.

[0004] In a first aspect, the present application provides an AR glasses device, which comprises a signal receiving circuit and a multi-mode satellite navigation chip.

[0005] The signal receiving circuit comprises an active antenna and an impedance matching circuit; the active antenna is connected to the impedance matching circuit, and the impedance matching circuit is connected to the multi-mode satellite navigation chip.

[0006] The active antenna is configured to receive a satellite navigation signal, the impedance matching circuit is configured to transmit the satellite navigation signal to the multi-mode satellite navigation chip, and the multi-mode satellite navigation chip is configured to determine positioning information corresponding to the satellite navigation signal.

[0007] In a second aspect, the present application provides a positioning circuit, which comprises a signal receiving circuit and a multi-mode satellite navigation chip.

[0008] The signal receiving circuit comprises an active antenna and an impedance matching circuit; the active antenna is connected to the impedance matching circuit, and the impedance matching circuit is connected to the multi-mode satellite navigation chip.

[0009] The active antenna is configured to receive a satellite navigation signal, the impedance matching circuit is configured to transmit the satellite navigation signal to the multi-mode satellite navigation chip, and the multi-mode satellite navigation chip is configured to determine positioning information corresponding to the satellite navigation signal.

[0010] The application provides an AR glasses device and a positioning circuit. The AR glasses device comprises a signal receiving circuit and a multi-mode satellite navigation chip. The signal receiving circuit comprises an active antenna and an impedance matching circuit. The active antenna is connected to the impedance matching circuit, and the impedance matching circuit is connected to the multi-mode satellite navigation chip. The active antenna is configured to receive satellite navigation signals, the impedance matching circuit is configured to transmit the satellite navigation signals to the multi-mode satellite navigation chip, and the multi-mode satellite navigation chip is configured to determine positioning information corresponding to the satellite navigation signals.

[0011] Based on the arrangement of the signal receiving circuit and the multi-mode satellite navigation chip on the AR glasses device, the AR glasses device can receive satellite navigation signals from at least one satellite navigation system through the signal receiving circuit and transmit corresponding satellite navigation signals to the multi-mode satellite navigation chip. Accordingly, the AR glasses device can determine positioning information corresponding to the satellite navigation signals by using the multi-mode satellite navigation chip. The positioning information can be used to determine the position and direction of the AR glasses device. The AR glasses device can navigate other objects according to the position of the AR glasses device, and / or other objects can find the AR glasses device by using the position of the AR glasses device. Therefore, the AR glasses device can have the navigation and positioning capability by arranging the signal receiving circuit and the multi-mode satellite navigation chip on the AR glasses device. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 A structural schematic diagram of an AR glasses device is provided for an embodiment of the application.

[0013] Figure 2 A circuit schematic diagram of an AR glasses device is provided for an embodiment of the application.

[0014] Figure 3 A structural schematic diagram of an AR glasses device is provided for an embodiment of the application.

[0015] Figure 4 A structural schematic diagram of a positioning circuit is provided for an embodiment of the application.

[0016] REFERENCE SIGNS: 10, AR glasses device; 100, signal receiving circuit; 110, active antenna; 120, impedance matching circuit; 200, multi-mode satellite navigation chip; 300, processor; 20, positioning circuit. DETAILED DESCRIPTION

[0017] With reference to the drawings, the technical solutions in the embodiments of the present application will be clearly and completely described in the description of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0018] In the description of the present application, unless explicitly defined and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0019] Some embodiments of the present application will be described in detail below with reference to the drawings. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0020] Please refer to Figure 1 , Figure 1 A structural schematic diagram of an AR glasses device 10 provided by the embodiments of the present application is shown in the figure.

[0021] Please refer to Figure 1 and Figure 2 , the AR glasses device 10 includes a signal receiving circuit 100 and a multi-mode satellite navigation chip 200.

[0022] The signal receiving circuit 100 includes an active antenna 110 and an impedance matching circuit 120; the active antenna 110 is connected to the impedance matching circuit 120, and the impedance matching circuit 120 is connected to the multi-mode satellite navigation chip 200.

[0023] The active antenna 110 is used to receive satellite navigation signals, the impedance matching circuit 120 is used to transmit the satellite navigation signals to the multi-mode satellite navigation chip 200, and the multi-mode satellite navigation chip 200 is used to determine the positioning information corresponding to the satellite navigation signals.

[0024] In some embodiments, when receiving satellite navigation signals, the active antenna 110 can capture and process radio signals in space to determine satellite navigation signals. The satellite navigation signals can be electromagnetic waves from a radio station, a television station, a satellite or other wireless transmission sources, etc., which are not limited here.

[0025] The satellite navigation signal received by the active antenna 110 can be from at least one satellite navigation system. The satellite navigation system can include a BeiDou satellite navigation system (BDS), a global navigation satellite system (GNSS), etc., which are not limited herein. The GNSS includes a global positioning system (GPS), a GLONASS navigation, a Galileo satellite navigation system (Galileo), etc., which are not limited herein.

[0026] For example, the active antenna 110 can transmit the satellite navigation signal to the impedance matching circuit 120 based on the connection relationship between the active antenna 110 and the impedance matching circuit 120 when the active antenna 110 receives the satellite navigation signal.

[0027] The impedance matching circuit 120 can be used to realize the impedance matching function. For example, the impedance matching circuit 120 can adjust the impedance of the impedance matching circuit 120, so that the adjusted impedance matches the impedance of the active antenna 110. When the impedance of the impedance matching circuit 120 matches the impedance of the active antenna 110, the reflection and loss of the satellite navigation signal during transmission can be reduced, which is beneficial to improve the transmission efficiency of the satellite navigation signal.

[0028] The impedance matching circuit 120 can transmit the satellite navigation signal to the multi-mode satellite navigation chip 200 based on the connection relationship between the impedance matching circuit 120 and the multi-mode satellite navigation chip 200 when the impedance matching circuit 120 receives the satellite navigation signal transmitted by the active antenna 110. The multi-mode satellite navigation chip 200 can be used to indicate a chip with navigation positioning function. The multi-mode satellite navigation chip 200 can receive and process satellite navigation signals of different satellite navigation systems to obtain corresponding positioning information. Accordingly, when the multi-mode satellite navigation chip 200 simultaneously receives satellite navigation signals of multiple satellite navigation systems, such as satellite navigation signals provided by the signal receiving circuit 100 to the multi-mode satellite navigation chip 200, the multi-mode satellite navigation chip 200 can perform multi-system joint positioning processing on satellite navigation signals provided by multiple satellite navigation systems respectively to determine the positioning information corresponding to the satellite navigation signal. The multi-mode satellite navigation chip 200 can include a BDS / GNSS chip. The BDS / GNSS chip can include an AT6558 of Zhongkewei, a Beidou Xing Tong chip, etc., which are not limited herein.

[0029] The AR glasses device 10 can determine the positioning information corresponding to the satellite navigation signal by using the navigation positioning function of the multi-mode satellite navigation chip 200 after receiving the satellite navigation signal through the signal receiving circuit 100 and transmitting the satellite navigation signal to the multi-mode satellite navigation chip 200. The positioning information corresponding to the satellite navigation signal can be used to determine the positioning of the AR glasses device 10, such as the position and direction of the AR glasses device 10. The positioning of the AR glasses device 10 can be used for the AR glasses device 10 to navigate other objects, and / or can be used for other objects to find the AR glasses device 10, so that the AR glasses device 10 can have a navigation positioning capability.

[0030] In some embodiments, the AR glasses device 10 further includes a processor 300 connected to the multi-mode satellite navigation chip 200, and the processor 300 is configured to use the positioning information determined by the multi-mode satellite navigation chip 200.

[0031] In the case where the processor 300 obtains the positioning information determined by the multi-mode satellite navigation chip 200 based on the connection relationship between the processor 300 and the multi-mode satellite navigation chip 200, the processor 300 can use the positioning information determined by the multi-mode satellite navigation chip 200 to determine the navigation information required by the user using the AR glasses device 10.

[0032] For example, in the case where the user needs to navigate other objects through the AR glasses device 10, the processor 300 can generate the navigation information required by the user according to the positioning information provided by the multi-mode satellite navigation chip 200, in combination with map data, traffic information, and position information of other objects. Correspondingly, the processor 300 can also control the AR glasses device 10 to display and update the display of at least one of the positioning information corresponding to the satellite navigation signal and the navigation information, without limitation. The map data, traffic information, and position information of other objects can be obtained by the processor 300 based on network retrieval capability, or can be obtained by the processor 300 from a corresponding memory, without limitation.

[0033] In the case where the user needs to find the AR glasses device 10 through other objects, such as the case where the AR glasses device 10 is lost, the processor 300 can provide the positioning information corresponding to the satellite navigation signal to the other objects based on the communication connection between the AR glasses device 10 and the other objects. The other objects can generate the navigation information required by the user according to the positioning information, in combination with map data, traffic information, and position information of other objects. Correspondingly, the other objects can also send a loss alarm instruction to the AR glasses device 10 based on the communication connection between the AR glasses device 10 and the other objects, and the processor 300 can control the AR glasses device 10 to perform loss alarm in response to the received loss alarm instruction, without limitation.

[0034] Of course, the processor 300 can also utilize the positioning information corresponding to the satellite navigation signal determined by the multi-mode satellite navigation chip 200 to realize functions such as motion trajectory recording, running distance measurement, and positioning tracking of the AR glasses device 10, without limitation. Correspondingly, the processor 300 can also integrate the positioning information corresponding to the satellite navigation signal determined by the multi-mode satellite navigation chip 200 and the acceleration information collected by the acceleration sensor arranged on the AR glasses device 10 to perform a fall detection on the AR glasses device 10, so as to perform a fall alarm when the user falls, without limitation.

[0035] In this way, in the case that the AR glasses device 10 can receive and transmit the satellite navigation signal to the multi-mode satellite navigation chip 200 through the signal receiving circuit 100, and determine the positioning information corresponding to the satellite navigation signal through the multi-mode satellite navigation chip 200, the processor 300 of the AR glasses device 10 can utilize the positioning information corresponding to the satellite navigation signal to realize various functions associated with the positioning of the AR glasses device 10, which is conducive to improving the user experience of the AR glasses device 10.

[0036] For example, at least one of the width of the signal receiving circuit 100, the width of the multi-mode satellite navigation chip 200, and the sum of the width of the signal receiving circuit 100 and the width of the multi-mode satellite navigation chip 200 is less than or equal to 6 mm.

[0037] In response to the development trend of miniaturization and light weight of the AR glasses device 10, the size of the AR glasses device 10 is generally small. Correspondingly, in the case that the signal receiving circuit 100 and the multi-mode satellite navigation chip 200 are arranged on the AR glasses device 10 to enable the AR glasses device 10 to have a navigation positioning capability, the size of the signal receiving circuit 100 and the multi-mode satellite navigation chip 200 can be designed.

[0038] For example, the width of the signal receiving circuit 100 can be used to indicate the size of the shortest side of the contact surface of the signal receiving circuit 100 and the AR glasses device 10. Correspondingly, the width of the multi-mode satellite navigation chip 200 can be used to indicate the size of the shortest side of the contact surface of the multi-mode satellite navigation chip 200 and the AR glasses device 10.

[0039] The signal receiving circuit 100 and the multi-mode satellite navigation chip 200 can be arranged at different positions of the AR glasses device 10, and the width of the signal receiving circuit 100 and the width of the multi-mode satellite navigation chip 200 can be limited respectively. For example, the width of the signal receiving circuit 100 is less than or equal to 6 mm. The width of the multi-mode satellite navigation chip 200 is less than or equal to 6 mm.

[0040] The signal receiving circuit 100 and the multi-mode satellite navigation chip 200 can also be arranged at the same position of the AR glasses device 10, and the width of the signal receiving circuit 100 and the width of the multi-mode satellite navigation chip 200 can be simultaneously limited. For example, the sum of the width of the signal receiving circuit 100 and the width of the multi-mode satellite navigation chip 200 is less than or equal to 6 mm.

[0041] Based on the design of the width of the signal receiving circuit 100 and the width of the multi-mode satellite navigation chip 200, the signal receiving circuit 100 and the multi-mode satellite navigation chip 200 can have the characteristics of miniaturization, and the AR glasses device 10 can have the navigation positioning capability while the miniaturization and lightness of the AR glasses device 10 are promoted.

[0042] Of course, the characteristics of the signal receiving circuit 100 and the multi-mode satellite navigation chip 200 arranged on the AR glasses device 10 are not limited to miniaturization. For example, the signal receiving circuit 100 and the multi-mode satellite navigation chip 200 can also have characteristics such as high sensitivity and low power consumption, which are not limited herein.

[0043] Of course, it is not limited to this, and the AR glasses device 10 can also design the size of the processor 300.

[0044] In the related art, there is a Central Processing Unit (CPU) chip integrated with a multi-mode satellite navigation function. The CPU chip integrated with the multi-mode satellite navigation function can integrate the functions of the signal receiving circuit 100, the multi-mode satellite navigation chip 200, and the processor 300. However, the size of the CPU chip integrated with the multi-mode satellite navigation function is generally large, and thus it is not suitable for the miniaturized and lightened AR glasses device 10.

[0045] Based on the consideration that the signal receiving circuit 100, the multi-mode satellite navigation chip 200, and the processor 300 can be suitable for the miniaturized and lightened AR glasses device 10 while the AR glasses device 10 has the navigation positioning capability, the AR glasses device 10 can design the size of the signal receiving circuit 100, the multi-mode satellite navigation chip 200, and the processor 300. The AR glasses device 10 can disintegrate the CPU chip integrated with the multi-mode satellite navigation function by arranging the signal receiving circuit 100, the multi-mode satellite navigation chip 200, and the processor 300, so that the size of the signal receiving circuit 100, the multi-mode satellite navigation chip 200, and the processor 300 can be more flexibly designed, thereby promoting the miniaturization and lightness of the AR glasses device 10.

[0046] For example, at least one of the width of the signal receiving circuit 100, the width of the multi-mode satellite navigation chip 200, the width of the processor 300, the sum of the width of the signal receiving circuit 100 and the width of the multi-mode satellite navigation chip 200, the sum of the width of the signal receiving circuit 100 and the width of the processor 300, the sum of the width of the multi-mode satellite navigation chip 200 and the width of the processor 300, and the sum of the width of the signal receiving circuit 100, the width of the multi-mode satellite navigation chip 200, and the width of the processor 300 is less than or equal to 6 mm.

[0047] The width of the processor 300 can be used to indicate the size of the shortest side of the contact surface of the processor 300 and the AR glasses device 10.

[0048] The signal receiving circuit 100, the multi-mode satellite navigation chip 200, and the processor 300 can be arranged at different positions of the AR glasses device 10, and the width of the signal receiving circuit 100, the width of the multi-mode satellite navigation chip 200, and the width of the processor 300 can be limited respectively. For example, the width of the signal receiving circuit 100 is less than or equal to 6 mm. The width of the multi-mode satellite navigation chip 200 is less than or equal to 6 mm. The width of the processor 300 is less than or equal to 6 mm.

[0049] The signal receiving circuit 100, the multi-mode satellite navigation chip 200, and the processor 300 can be arranged at different positions of the AR glasses device 10, and the width of the signal receiving circuit 100, the width of the multi-mode satellite navigation chip 200, and the width of the processor 300 can be limited respectively. For example, the width of the signal receiving circuit 100 is less than or equal to 6 mm. The width of the multi-mode satellite navigation chip 200 is less than or equal to 6 mm. The width of the processor 300 is less than or equal to 6 mm.

[0050] Based on the design of the width of the signal receiving circuit 100, the width of the multi-mode satellite navigation chip 200, and the width of the processor 300, the signal receiving circuit 100, the multi-mode satellite navigation chip 200, and the processor 300 can have the characteristics of miniaturization, and the AR glasses device 10 can have the navigation positioning capability while the miniaturization and lightness of the AR glasses device 10 are promoted.

[0051] In some embodiments, the AR glasses device 10 includes a power module, a first mainboard, and a second mainboard; the power module is connected to the first mainboard and the second mainboard, and the power module is used to supply power to the first mainboard and the second mainboard; the signal receiving circuit 100 and the multi-mode satellite navigation chip 200 are arranged on at least one of the first mainboard and the second mainboard.

[0052] As shown in Figure 3 the first main board can include opposite first and second sides. The first side can be above the second side. The second main board can include opposite third and fourth sides. The third side can be above the fourth side. For example, the first and second main boards can be stacked. For example, when the first and second main boards are stacked and the first main board is above the second main board, the second side of the first main board can be adjacent to the third side of the second main board. Of course, this is not limited. For example, when the first and second main boards are stacked and the second main board is above the first main board, the first side of the first main board can be adjacent to the fourth side of the second main board. This is not limited.

[0053] As shown in Figure 3 the power module is connected to the first and second main boards. For example, when the power module is connected to the first and second main boards, the first and second main boards can also have a connection relationship. For example, the power module is connected to one of the first and second main boards, and the first and second main boards are connected, which means that the power module can be connected to the other of the first and second main boards through the connection relationship between the first and second main boards. This is not limited.

[0054] The signal receiving circuit 100 and the multi-mode satellite navigation chip 200 can be arranged at the same position of the AR glasses device 10, such as being arranged on the first main board or the second main board. The signal receiving circuit 100 and the multi-mode satellite navigation chip 200 can also be arranged at different positions of the AR glasses device 10, such as the signal receiving circuit 100 being arranged on one of the first and second main boards and the multi-mode satellite navigation chip 200 being arranged on the other of the first and second main boards. Based on the first and second main boards having a connection relationship, the signal receiving circuit 100 and the multi-mode satellite navigation chip 200 can also have a corresponding connection relationship when arranged at different positions. The width of the signal receiving circuit 100 and the width of the multi-mode satellite navigation chip 200 can be limited by at least one of the width of the first main board and the width of the second main board. The width of the first main board can be used to indicate the minimum size corresponding to the contact surface of the first main board and at least one of the signal receiving circuit 100 and the multi-mode satellite navigation chip 200. The width of the second main board can be used to indicate the minimum size corresponding to the contact surface of the second main board and at least one of the signal receiving circuit 100 and the multi-mode satellite navigation chip 200.

[0055] For example, in a case where the power module is connected to the first mainboard and the second mainboard, the power module can supply power to the first mainboard and the second mainboard based on the connection relationship between the first mainboard and the second mainboard. Correspondingly, in a case where the signal receiving circuit 100 and the multi-mode satellite navigation chip 200 are arranged on at least one of the first mainboard and the second mainboard, the power module can supply power to the signal receiving circuit 100 and the multi-mode satellite navigation chip 200 by providing driving power to the first mainboard and the second mainboard.

[0056] Of course, the processor 300 is not limited to this, and in a case where the AR glasses device 10 includes the processor 300, the processor 300 can also be arranged on at least one of the first mainboard and the second mainboard. The processor 300 can be arranged on the same mainboard as at least one of the signal receiving circuit 100 and the multi-mode satellite navigation chip 200, or the processor 300 can be arranged on a different mainboard from the signal receiving circuit 100 and the multi-mode satellite navigation chip 200, and the present disclosure is not limited in this regard.

[0057] In an exemplary embodiment, the power module of the AR glasses device 10 has a charging function. For example, the power module can be provided with a charging interface, and in a case where the charging interface of the power module is connected to an external power source, the external power source can charge the power module, so that the power module can supply power to the first mainboard and the second mainboard, and further supply power to the multi-mode satellite navigation circuit and the multi-mode satellite navigation chip 200.

[0058] Based on this, the AR glasses device 10 can supply power to the signal receiving circuit 100 and the multi-mode satellite navigation chip 200 through the power module, thereby facilitating the realization of the navigation and positioning capability of the AR glasses device 10.

[0059] In some embodiments, the active antenna 110 includes an antenna, a first inductor, a first low-noise amplifier, and a first filter; the antenna is connected to a first end of the first inductor, a second end of the first inductor is connected to a first end of the first low-noise amplifier, a second end of the first low-noise amplifier is connected to a first end of the first filter, and a second end of the first filter is connected to the impedance matching circuit 120.

[0060] As Figure 2As shown, the active antenna 110 includes an antenna ANT, a first inductor L1, a first low noise amplifier LNA1, and a first filter SAW1. The antenna ANT can be used to capture radio signals in space for receiving satellite navigation signals. The antenna ANT is connected to a first end of the first inductor L1 to transmit the captured radio signals to the first inductor L1. The first inductor L1 can be used to adjust the impedance of the active antenna 110 so that the radio signals can be transmitted more efficiently into subsequent circuits. A second end of the first inductor L1 is connected to a first end of the first low noise amplifier LNA1 to transmit the radio signals to the first low noise amplifier LAN1. The first low noise amplifier LNA1 can amplify weak signals in the radio signals processed by the first inductor L1. A second end of the first low noise amplifier LNA1 is connected to a first end of the first filter SAW1 to transmit the radio signals to the first filter SAW1. The first filter SAW1 can include a surface acoustic wave (SAW) filter, without limitation. The first filter SAW1 can be used to filter out noise and interference signals in a specific frequency range in the radio signals processed by the first low noise amplifier LAN1 to obtain satellite navigation signals. In the case that the active antenna 110 receives satellite navigation signals, the active antenna 110 can transmit the satellite navigation signals to the impedance matching circuit 120 based on a connection relationship between a second end of the first filter SAW1 and the impedance matching circuit 120.

[0061] In some embodiments, the impedance matching circuit 120 includes a second inductor, a first capacitor, and a second capacitor; a first end of the first capacitor is connected to the active antenna 110, and a second end of the first capacitor is connected to the multi-mode satellite navigation chip 200; a first end of the second inductor is connected to the first end of the first capacitor, a second end of the second inductor is connected to a first end of the second capacitor, and a second end of the second capacitor is grounded.

[0062] As Figure 2As shown, the impedance matching circuit 120 includes a second inductor L2, a first capacitor C1, and a second capacitor C2. A first end of the first capacitor C1 is connected to the active antenna 110, and a second end of the first capacitor C1 is connected to the multi-mode satellite navigation chip 200. A first end of the second inductor L2 is connected to the first end of the first capacitor C1, a second end of the second inductor L2 is connected to a first end of the second capacitor C2, and a second end of the second capacitor C2 is grounded. The first end of the first capacitor C1 can also be connected to other devices, and the first end of the first capacitor C1 can be connected to the multi-mode satellite navigation chip 200 through the other devices, which is not limited herein. The second inductor L2 can be used to filter the satellite navigation signal provided by the active antenna 110 to suppress interference signals and improve the quality of the satellite navigation signal. The second inductor L2 can also be used in conjunction with the first capacitor C1 to adjust the impedance of the impedance matching circuit 120, so that the impedance matching circuit 120 is impedance matched with the active antenna 110. The first capacitor C1 can function as a direct current (DC) blocking and alternating current (AC) passing device to protect the active antenna 110 from DC voltage interference. The first capacitor C1 can function as a filter to filter out high-frequency noise and clutter in the satellite navigation signal, thereby improving the purity and quality of the satellite navigation signal. The second capacitor C2 can be used to stabilize the potential of the impedance matching circuit 120 to reduce fluctuations and interference in the impedance matching circuit 120, thereby ensuring the stability and reliability of the impedance matching circuit 120. The second capacitor C2 can also function as a filter and decoupling device to filter out high-frequency noise and clutter in the impedance matching circuit 120 and prevent interference caused by these noises to the impedance matching circuit 120. In an exemplary embodiment, the capacitance value of the first capacitor C1 can include 100 picofarads (pF), the capacitance value of the second capacitor C2 can include 0.1 microfarads (μF), and the inductance value of the second inductor L2 can include 33 / 47 nanohenrys (nH), which is not limited herein.

[0063] Based on the settings of the impedance matching circuit 120, the impedance matching circuit 120 can achieve an impedance matching function to adjust the impedance of the impedance matching circuit 120, so that the adjusted impedance is matched with the impedance of the active antenna 110, thereby transmitting the satellite navigation signal received by the active antenna 110 to the multi-mode satellite navigation chip 200.

[0064] In some embodiments, the multi-mode satellite navigation chip 200 is provided with a first pin, and the multi-mode satellite navigation chip 200 includes a radio frequency front end; and the second end of the first capacitor is connected to the radio frequency front end through the first pin.

[0065] As Figure 2As shown, the first pin can be used to indicate the signal input pin corresponding to the radio frequency front end. In an exemplary embodiment, the first pin can include the LNA IN pin of the multi-mode satellite navigation chip 200. Of course, the first pin is not limited to this, which is not limited herein. The radio frequency front end of the multi-mode satellite navigation chip 200 can be integrated with a second low noise amplifier LNA2, a radio frequency amplifier RFA, a mixer Mixer, a phase-locked loop PLL, a second filter SAW2, a variable gain amplifier VGA, an analog-to-digital converter ADC, and the like, which is not limited herein.

[0066] In the case of connecting the radio frequency front end through the first pin at the second end of the first capacitor C1 of the impedance matching circuit 120, the impedance matching circuit 120 can transmit the satellite navigation signal to the radio frequency front end. For example, the radio frequency front end can sequentially process the satellite navigation signal through the second low noise amplifier LNA2, the radio frequency amplifier RFA, the mixer Mixer, the second filter SAW2, the variable gain amplifier VGA, and the analog-to-digital converter ADC, so as to determine the positioning information corresponding to the satellite navigation signal by the multi-mode satellite navigation chip 200. Among them, the mixer Mixer can synthesize the local oscillation signal LO1 provided by the phase-locked loop PLL integrated in the radio frequency front end to perform frequency mixing processing on the satellite navigation signal. Of course, it is not limited to this, which is not limited herein.

[0067] As shown, Figure 2 The multi-mode satellite navigation chip 200 can further include a multi-tone interference suppressor, a multi-system signal processing engine, and a digital baseband core. The satellite navigation signal processed by the radio frequency front end can continue to be processed by the multi-tone interference suppressor, the multi-system signal processing engine, and the digital baseband core to obtain the positioning information corresponding to the satellite navigation signal.

[0068] Based on the signal receiving circuit 100 in the AR glasses device 10 and the multi-mode satellite navigation chip 200, the AR glasses device 10 can have navigation and positioning capabilities.

[0069] In some embodiments, the multi-mode satellite navigation chip 200 is provided with a second pin and a third pin, and the radio frequency front end further includes an active antenna detection circuit; a first end of the active antenna detection circuit is connected to the power supply through the second pin, and a second end of the active antenna detection circuit is connected to the impedance matching circuit 120 through the third pin.

[0070] As shown, Figure 2As shown, the second pin can be used to indicate the power input / output pin corresponding to the multi-mode satellite navigation chip 200. In an exemplary embodiment, the second pin may include the VDD_IO pin of the multi-mode satellite navigation chip 200. However, the second pin is not limited to this and is not restricted here. The third pin can be used to indicate the antenna bias pin corresponding to the multi-mode satellite navigation chip 200. In an exemplary embodiment, the third pin may include the ANT_BIAS pin of the multi-mode satellite navigation chip 200. However, the third pin is not limited to this and is not restricted here.

[0071] like Figure 2 As shown, the RF front-end also includes an active antenna detection circuit ANT Detect. The first terminal of the active antenna detection circuit ANT Detect can be connected to a power supply via a second pin, such as the VDD_IO pin. The second terminal of the active antenna detection circuit ANT Detect can be connected to the impedance matching circuit 120 via a third pin, such as the ANT_BIAS pin. In an exemplary embodiment, the voltage of the power supply connected to the active antenna detection circuit ANT Detect is less than or equal to 3.6V. However, this is not a limitation and is not intended to restrict its application.

[0072] An active antenna detection circuit can be used to feed the active antenna 110. Accordingly, the active antenna detection circuit can indicate the state of the active antenna 110 based on the magnitude of the feed current. The active antenna detection circuit can also provide short-circuit protection by limiting the current fed to the active antenna 110, protecting the multi-mode satellite navigation chip 200 and the active antenna 110 from damage. In an exemplary embodiment, the active antenna detection circuit determines the state of the active antenna 110 based on the magnitude of the feed current. For example, when the feed current is less than or equal to a preset current value, it can be determined that the active antenna 110 is open-circuited. When the feed current is greater than the preset current value, it can be determined that the active antenna 110 is normal. When the feed current is too large or a short circuit occurs, it can be determined that the active antenna 110 is overcurrent.

[0073] Based on the active antenna detection circuit in the multi-mode satellite navigation chip 200, the multi-mode satellite navigation chip 200 can detect the status of the active antenna 110 in the signal receiving circuit 100 to ensure that the signal receiving circuit 100 can receive satellite navigation signals normally, thereby ensuring that the multi-mode satellite navigation chip 200 can determine the positioning information corresponding to the satellite navigation information, so as to realize the navigation and positioning capability of the AR glasses device 10.

[0074] In some embodiments, the first terminal of the active antenna detection circuit is also connected to a third capacitor via a second pin. The first terminal of the third capacitor is connected between the power supply and the active antenna detection circuit, and the second terminal of the third capacitor is grounded. The second terminal of the active antenna detection circuit is connected via a third pin between the second terminal of the second inductor of the impedance matching circuit 120 and the first terminal of the second capacitor of the impedance matching circuit 120.

[0075] like Figure 2 As shown, the active antenna detection circuit ANT Detect can be connected to a third capacitor C3 via a second pin, such as the VDD_IO pin. The first end of the third capacitor C3 is connected between the power supply and the active antenna detection circuit ANT Detect, and the second end of the third capacitor C3 is grounded. The second end of the active antenna detection circuit ANT Detect is connected via a third pin, such as the ANT_BIAS pin, between the second end of the second inductor L2 of the impedance matching circuit 120 and the first end of the second capacitor C2 of the impedance matching circuit 120. The power supply can supply power to the active antenna detection circuit ANT Detect via the VDD_IO pin, and the active antenna detection circuit ANT Detect can feed power to the active antenna 110 via the ANT_BIAS pin. The third capacitor C3 and the second inductor L2 can be used to block AC signals to prevent AC signals from feeding into the ANT_BIAS pin, thereby ensuring the accuracy of the active antenna detection circuit ANT Detect in detecting the active antenna 110. In an exemplary embodiment, the capacitance value of the third capacitor C3 includes 0.1μF. However, this is not a limitation and is not intended to restrict the detection.

[0076] The AR glasses device 10 provided in this application embodiment includes a signal receiving circuit and a multi-mode satellite navigation chip 200. The signal receiving circuit 100 includes an active antenna 110 and an impedance matching circuit 120. The active antenna 110 is connected to the impedance matching circuit 120, and the impedance matching circuit 120 is connected to the multi-mode satellite navigation chip 200. The active antenna 110 is used to receive satellite navigation signals, and the impedance matching circuit 120 is used to transmit the satellite navigation signals to the multi-mode satellite navigation chip 200. The multi-mode satellite navigation chip 200 is used to determine the positioning information corresponding to the satellite navigation signals.

[0077] Based on the signal receiving circuit 100 and the multi-mode satellite navigation chip 200 on the AR glasses device 10, the AR glasses device 10 can receive satellite navigation signals from at least one satellite navigation system through the signal receiving circuit 100, and transmit the corresponding satellite navigation signals to the multi-mode satellite navigation chip 200. Accordingly, the AR glasses device 10 can determine the positioning information corresponding to the satellite navigation signals by using the multi-mode satellite navigation chip 200. The positioning information can be used to determine the positioning of the AR glasses device 10, such as the position and direction of the AR glasses device 10. The AR glasses device 10 can navigate other objects according to the positioning of the AR glasses device 10, and / or other objects can use the positioning of the AR glasses device 10 to find the AR glasses device 10. Based on this, in the case of setting the signal receiving circuit 100 and the multi-mode satellite navigation chip 200 on the AR glasses device 10, the AR glasses device 10 can have navigation and positioning capabilities.

[0078] Please refer to Figure 4 , Figure 4 A structural schematic diagram of a positioning circuit 20 provided by an embodiment of the present application.

[0079] As shown in Figure 4 , the positioning circuit 20 includes a signal receiving circuit 100 and a multi-mode satellite navigation chip 200; the signal receiving circuit 100 includes an active antenna 110 and an impedance matching circuit 120; the active antenna 110 is connected to the impedance matching circuit 120, and the impedance matching circuit 120 is connected to the multi-mode satellite navigation chip 200; the active antenna 110 is used to receive satellite navigation signals, the impedance matching circuit 120 is used to transmit the satellite navigation signals to the multi-mode satellite navigation chip 200, and the multi-mode satellite navigation chip 200 is used to determine the positioning information corresponding to the satellite navigation signals.

[0080] The positioning circuit 20 can be arranged on the AR glasses device 10, and / or arranged on a mobile terminal, a smart watch, a smart bracelet, or the like, to realize the navigation and positioning capabilities of the electronic device.

[0081] Accordingly, the related descriptions of the signal receiving circuit 100 and the multi-mode satellite navigation chip 200 involved in the positioning circuit 20 can refer to the related descriptions of the AR glasses device 10 described above, which will not be repeated here.

[0082] In the case that the positioning circuit 20 can have the characteristics of miniaturization and micro-miniaturization, arranging the positioning circuit 20 on the electronic device can help to reduce the volume and weight of the electronic device, and promote the miniaturization and micro-miniaturization process of the electronic device.

[0083] It should be understood that the terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit the application.

[0084] It should also be understood that, in the claims hereinafter presented by way of example, any means for performing an operation and any reference characters for performing an operation are intended to encompass any means for performing the operation and any reference characters for performing the operation, even if performing the operation is not specifically claimed.

[0085] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any modification or replacement which is easily thought of by those skilled in the art within the technical range disclosed by the present application should be encompassed in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An AR eyewear device, characterized by, The AR glasses device comprises a signal receiving circuit and a multi-mode satellite navigation chip; The signal receiving circuit comprises an active antenna and an impedance matching circuit; the active antenna is connected to the impedance matching circuit, and the impedance matching circuit is connected to the multi-mode satellite navigation chip; The active antenna is configured to receive a satellite navigation signal, the impedance matching circuit is configured to transmit the satellite navigation signal to the multi-mode satellite navigation chip, and the multi-mode satellite navigation chip is configured to determine positioning information corresponding to the satellite navigation signal.

2. The AR eyewear device of claim 1, wherein, At least one of the width of the signal receiving circuit, the width of the multi-mode satellite navigation chip, and the sum of the width of the signal receiving circuit and the width of the multi-mode satellite navigation chip is less than or equal to 6 mm.

3. The AR eyewear device of claim 1, wherein, The AR glasses device comprises a power module, a first mainboard, and a second mainboard; The power module is connected to the first mainboard and the second mainboard, and is configured to supply power to the first mainboard and the second mainboard; The signal receiving circuit and the multi-mode satellite navigation chip are arranged on at least one of the first mainboard and the second mainboard.

4. The AR eyewear device of claim 1, wherein, The active antenna comprises an antenna, a first inductor, a first low-noise amplifier, and a first filter; The antenna is connected to a first end of the first inductor, a second end of the first inductor is connected to a first end of the first low-noise amplifier, a second end of the first low-noise amplifier is connected to a first end of the first filter, and a second end of the first filter is connected to the impedance matching circuit.

5. The AR eyewear device of claim 1, wherein, The impedance matching circuit comprises a second inductor, a first capacitor, and a second capacitor; A first end of the first capacitor is connected to the active antenna, and a second end of the first capacitor is connected to the multi-mode satellite navigation chip; A first end of the second inductor is connected to the first end of the first capacitor, a second end of the second inductor is connected to a first end of the second capacitor, and a second end of the second capacitor is grounded.

6. The AR eyewear device of claim 5, wherein, The multi-mode satellite navigation chip is provided with a first pin, and the multi-mode satellite navigation chip comprises a radio frequency front end; the second end of the first capacitor is connected to the radio frequency front end through the first pin.

7. The AR eyewear device of claim 6, wherein, The multi-mode satellite navigation chip is provided with a second pin and a third pin, and the radio frequency front end further comprises an active antenna detection circuit; A first end of the active antenna detection circuit is connected to a power supply through the second pin, and a second end of the active antenna detection circuit is connected to the impedance matching circuit through the third pin.

8. The AR eyewear device of claim 7, wherein, The first end of the active antenna detection circuit is also connected to a third capacitor through the second pin; a first end of the third capacitor is connected between the power supply and the active antenna detection circuit, and a second end of the third capacitor is grounded; The second end of the active antenna detection circuit is connected between a second end of the second inductor of the impedance matching circuit and a first end of the second capacitor of the impedance matching circuit through the third pin.

9. The AR eyewear device of any one of claims 1-8, wherein, The AR glasses device further comprises a processor connected to the multi-mode satellite navigation chip, and the processor is configured to use the positioning information determined by the multi-mode satellite navigation chip.

10. A positioning circuit, characterized by The positioning circuit comprises a signal receiving circuit and a multi-mode satellite navigation chip; The signal receiving circuit comprises an active antenna and an impedance matching circuit; the active antenna is connected to the impedance matching circuit, and the impedance matching circuit is connected to the multi-mode satellite navigation chip; The active antenna is configured to receive a satellite navigation signal, the impedance matching circuit is configured to transmit the satellite navigation signal to the multi-mode satellite navigation chip, and the multi-mode satellite navigation chip is configured to determine positioning information corresponding to the satellite navigation signal.

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