Anti-interference satellite navigation device and electronic equipment

Abstract

The utility model discloses an anti-interference satellite navigation device and electronic equipment, the anti-interference satellite navigation device comprises a signal enhancement helmet, the signal enhancement helmet comprises a helmet body, a plurality of antenna modules and a first communication interface, the antenna modules and the first communication interface are arranged on the helmet body; the handheld navigation terminal is provided with a second communication interface; one end of the communication cable is connected with the first communication interface, and the other end of the communication cable is connected with the second communication interface; and the communication cable is wound on the magnetic ring module. Interference signals caused by other equipment to the communication cable can be attenuated through the magnetic ring module, the reliability and stability of signal transmission in the communication cable are improved, the handheld navigation terminal can normally receive satellite signals transmitted by the signal enhancement helmet, and the situation that the handheld navigation terminal cannot be used due to electromagnetic interference of other equipment is avoided.

Description

Technical Field

[0001] The utility model relates to the field of satellite navigation, in particular to an anti-interference satellite navigation device and electronic equipment. Background Art

[0002] Currently, soldiers usually use handheld satellite navigation terminals for positioning during field reconnaissance or combat. In areas with weak signals or strong interference, positioning is often inaccurate due to poor signals. In order to enhance the signal, the antenna of the handheld navigation terminal can only be lengthened and raised. This not only increases the weight of the handheld navigation terminal, but also makes it difficult to carry. In addition, the antenna is too long and easy to break.

[0003] A company recently designed a helmet-mounted satellite navigation device. The antenna is mounted on the helmet as a signal booster, and a signal cable connects the helmet to a handheld terminal, enhancing the signal through the helmet. However, the following issues were discovered during use: Due to differences in height and arm length, and for ease of use, the signal cable is typically longer. During field use, portions of the cable are often wrapped around the waist or in a backpack. Soldiers often carry other electronic devices, such as detectors and walkie-talkies, during field reconnaissance or combat. These devices, when in close proximity to the signal cable, can cause electromagnetic interference, affecting the normal operation of the handheld terminal. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an anti-interference satellite navigation device and electronic equipment that can resolve electromagnetic interference caused by other devices on signal lines, thereby preventing handheld terminals from being unusable due to electromagnetic interference.

[0005] According to the anti-interference satellite navigation device of the first aspect embodiment of the utility model, it includes: a signal enhancement helmet, which includes a helmet body, a plurality of antenna modules arranged on the helmet body and a first communication interface; a handheld navigation terminal, which is provided with a second communication interface; a communication cable, one end of the communication cable is connected to the first communication interface, and the other end of the cable is connected to the second communication interface; and a magnetic ring module, on which the communication cable is wound.

[0006] The anti-interference satellite navigation device according to the embodiment of the first aspect of the present utility model has at least the following beneficial effects:

[0007] In an embodiment of the present invention, a first communication interface is provided on the helmet, and a second communication interface is provided on the handheld navigation terminal. The antenna module on the signal enhancement helmet is connected to the second communication interface on the handheld navigation terminal through the first communication interface and a communication cable, and the received satellite signal is sent to the handheld navigation terminal through the communication cable. The communication cable is wound on the magnetic ring module. The magnetic ring module can attenuate the interference signal caused by other devices to the communication cable, thereby improving the reliability and stability of the signal transmission inside the communication cable, so that the handheld navigation terminal can normally receive the satellite signal transmitted by the signal enhancement helmet, and avoid the handheld navigation terminal being unable to be used due to electromagnetic interference from other devices.

[0008] According to some embodiments of the present utility model, the handheld navigation terminal is provided with a radio frequency module, a ZYNQ module, an MCU, a battery and a power module, the input end of the radio frequency module is connected to the second communication interface, the output end of the radio frequency module is connected to the input end of the ZYNQ module, the PL side of the ZYNQ module serves as a signal processing unit for capturing and processing satellite signals, the PS side of the ZYNQ module serves as an information processing unit for generating positioning data based on data input from the PL side, the output end of the ZYNQ module is connected to the input end of the MCU for generating navigation data based on the positioning data, and the battery is connected to the power module for powering the handheld navigation terminal.

[0009] According to some embodiments of the present invention, the RF module includes a combiner, an amplifier, a power splitter, a filter and a RF processing chip, the input end of the combiner is connected to the second communication interface, the output end of the combiner is connected to the input end of the amplifier, the output end of the amplifier is connected to the input end of the power splitter, the output end of the power splitter is connected to the input end of the RF processing chip through the filter, and the output end of the RF processing chip is connected to the input end of the ZYNQ module.

[0010] According to some embodiments of the present invention, the magnetic ring module includes a low-frequency magnetic ring and a high-frequency magnetic ring, the communication cable is wrapped around the low-frequency magnetic ring once, and the communication cable is wrapped around the high-frequency magnetic ring twice.

[0011] According to some embodiments of the present invention, the handheld navigation terminal is further provided with a liquid crystal display and buttons for completing human-computer interaction.

[0012] According to some embodiments of the present invention, the antenna module is an active antenna module.

[0013] According to some embodiments of the present invention, there are four antenna modules and they are evenly distributed on the sides of the helmet body.

[0014] An electronic device according to an embodiment of the second aspect of the present invention includes the above-mentioned anti-interference satellite navigation device.

[0015] The electronic device according to the embodiment of the second aspect of the present utility model has at least the following beneficial effects:

[0016] In an embodiment of the present invention, a first communication interface is provided on the helmet, and a second communication interface is provided on the handheld navigation terminal. The antenna module on the signal enhancement helmet is connected to the second communication interface on the handheld navigation terminal through the first communication interface and a communication cable, and the received satellite signal is sent to the handheld navigation terminal through the communication cable. The communication cable is wound on the magnetic ring module. The magnetic ring module can attenuate the interference signal caused by other devices to the communication cable, thereby improving the reliability and stability of the signal transmission inside the communication cable, so that the handheld navigation terminal can normally receive the satellite signal transmitted by the signal enhancement helmet, and avoid the handheld navigation terminal being unable to be used due to electromagnetic interference from other devices.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a schematic structural diagram of an anti-interference satellite navigation device in an embodiment of the present utility model;

[0020] Figure 2 This is a principle block diagram of each module in the handheld navigation terminal in an embodiment of the present utility model;

[0021] Figure 3 This is a circuit diagram of a combiner of a radio frequency module in an embodiment of the present utility model;

[0022] Figure 4 This is a circuit diagram of the amplifier of the radio frequency module in an embodiment of the present utility model;

[0023] Figure 5 This is a circuit diagram of the power divider and filter in an embodiment of the present utility model.

[0024] Figure Number:

[0025] Signal enhancement helmet 100, helmet body 110, antenna module 120, first communication interface 130, handheld navigation terminal 200, second communication interface 210, communication cable 300, magnetic ring module 400. DETAILED DESCRIPTION

[0026] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of this utility model, "a plurality" means more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] Reference Figure 1 As shown, an anti-interference satellite navigation device includes: a signal enhancement helmet 100, a handheld navigation terminal 200, a communication cable 300 and a magnetic ring module 400. Specifically, the signal enhancement helmet 100 includes a helmet body 110, several antenna modules 120 arranged on the helmet body 110, and a first communication interface 130. In this embodiment, the antenna module 120 is four in number and is evenly distributed on the side of the helmet body 110. Of course, other structures can also be used. For example, one antenna module 120 is placed on the top of the helmet, and the remaining three are evenly distributed on the side of the helmet. The antenna module 120 adopts an active antenna module, which includes an antenna and a low-noise amplifier circuit. The low-noise amplifier circuit can improve the output signal-to-noise ratio. When the soldier wears the signal enhancement helmet 100, the antenna module 120 is located on the top of the head to receive satellite signals. There is no need to raise the hands, and the hands can be freed to perform other operations and tasks. A second communication interface 210 is provided on the handheld navigation terminal 200. One end of the communication cable 300 is connected to the first communication interface 130, and the other end of the cable is connected to the second communication interface 210. The communication cable 300 is wrapped around the magnetic ring module 400. The magnetic ring module 400 is used to attenuate the interference signals from other devices on the communication cable, which can improve the anti-interference ability.

[0031] Specifically, in the embodiment of the present invention, the magnetic ring module 400 includes a low-frequency magnetic ring 410 and a high-frequency magnetic ring 420. The communication cable 300 is first wrapped around the low-frequency magnetic ring 410 for one circle, and then wrapped around the high-frequency magnetic ring 420 for two circles. The high-frequency interference signal on the communication cable 300 is attenuated by the low-frequency magnetic ring 410, and the low-frequency interference signal on the communication cable is attenuated by the low-frequency magnetic ring 410, thereby further improving the anti-interference ability.

[0032] In the embodiment of the present invention, a first communication interface 130 is provided on the helmet body 110, and a second communication interface 210 is provided on the handheld navigation terminal 200. The antenna module 120 on the signal enhancement helmet 100 is connected to the second communication interface 210 on the handheld navigation terminal 200 through the first communication interface 130 and the communication cable 300, and the received satellite signal is sent to the handheld navigation terminal through the communication cable 300. The communication cable 300 is wound on the magnetic ring module 400. The magnetic ring module 400 can attenuate the interference signal caused by other devices to the communication cable 300, thereby improving the reliability and stability of the signal transmission inside the communication cable 300, so that the handheld navigation terminal 200 can normally receive the satellite signal transmitted by the signal enhancement helmet 100, thereby avoiding the handheld navigation terminal 200 being unable to be used due to electromagnetic interference from other devices.

[0033] refer to Figure 2 As shown, the handheld navigation terminal 200 is provided with a radio frequency module, a ZYNQ module, an MCU, a battery and a power module. The handheld navigation terminal 200 is also provided with a liquid crystal display and buttons. The navigation and map information are displayed on the liquid crystal display, and human-computer interaction is completed by pressing the buttons. The input end of the radio frequency module is connected to the second communication interface 210, and its function is to combine, amplify, power divide and filter the antenna signal received by the second communication interface 210. The output end of the radio frequency module is connected to the input end of the ZYNQ module, and the signal after combining, amplifying, power dividing and filtering is input to the ZYNQ module. In this embodiment, the ZYNQ The Q module uses XC7Z020CLG400-2, and the PL side of the ZYNQ module serves as a signal processing unit, which is used to capture satellite signals and track and process satellite signals. The PS side of the ZYNQ module serves as an information processing unit, which performs positioning according to the satellite data on the PL side. The output end of the ZYNQ module is connected to the input end of the MCU to input the calculated positioning information. The MCU is connected to a storage module that stores map data, and generates navigation data based on the map data and the positioning information, which is displayed on the LCD screen of the handheld navigation terminal 200. The battery supplies power to the handheld navigation terminal 200 through the power module.

[0034] Specifically, refer to Figure 3 、 Figure 4 and Figure 5As shown, the RF module includes a combiner U11, an amplifier U12, a power splitter U13, four filters U14A, U14B, U14C and U14D, and a RF processing chip U15. The input end of the combiner is connected to the second communication interface 210. In this embodiment, there are four antenna modules 120. The four antenna modules J1-J4 are connected to an input end of the combiner U11 through the first communication interface and the second communication interface respectively to combine the four satellite signals. The output end of the combiner U11 is connected to the input end of the amplifier U12 to amplify the combined signal. For large-scale processing, the output end of the amplifier U12 is connected to the input end of the power divider U13 to split the combined signal. The output end of the power divider U13 is connected to the input end of the RF processing chip U15 through four filters U14A, U14B, U14C and U14D. The model of the RF processing chip U15 in this embodiment is RF69213. The output end of the RF processing chip U15 is connected to the input end of the ZYNQ module. The RF module design in this embodiment can ensure the consistency of the phase and delay of the four antennas, and further improve the reliability and stability of satellite navigation.

[0035] The utility model also relates to an electronic device, comprising the anti-interference satellite navigation device of the above embodiment.

[0036] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An anti-interference satellite navigation device, characterized in that: include: A signal enhancement helmet (100), comprising a helmet body (110), a plurality of antenna modules (120) arranged on the helmet body (110), and a first communication interface (130); A handheld navigation terminal (200), wherein the handheld navigation terminal (200) is provided with a second communication interface (210); a communication cable (300), one end of the communication cable (300) being connected to the first communication interface (130) and the other end of the cable being connected to the second communication interface (210); A magnetic ring module (400), the communication cable (300) is wound around the magnetic ring module (400).

2. The anti-interference satellite navigation device according to claim 1, characterized in that: The handheld navigation terminal (200) is provided with a radio frequency module, a ZYNQ module, an MCU, a battery and a power module. The input end of the radio frequency module is connected to the second communication interface (210), the output end of the radio frequency module is connected to the input end of the ZYNQ module, the PL side of the ZYNQ module serves as a signal processing unit for capturing and processing satellite signals, the PS side of the ZYNQ module serves as an information processing unit for generating positioning data based on data input from the PL side, the output end of the ZYNQ module is connected to the input end of the MCU for generating navigation data based on the positioning data, and the battery is connected to the power module for supplying power to the handheld navigation terminal (200).

3. The anti-interference satellite navigation device according to claim 2, characterized in that: The radio frequency module comprises a combiner, an amplifier, a power splitter, a filter and a radio frequency processing chip, wherein the input end of the combiner is connected to the second communication interface (210), the output end of the combiner is connected to the input end of the amplifier, the output end of the amplifier is connected to the input end of the power splitter, the output end of the power splitter is connected to the input end of the radio frequency processing chip through the filter, and the output end of the radio frequency processing chip is connected to the input end of the ZYNQ module.

4. The anti-interference satellite navigation device according to claim 1, characterized in that: The magnetic ring module (400) comprises a low-frequency magnetic ring (410) and a high-frequency magnetic ring (420); the communication cable (300) is wound around the low-frequency magnetic ring (410) for one turn; and the communication cable (300) is wound around the high-frequency magnetic ring (420) for two turns.

5. The anti-interference satellite navigation device according to claim 1, characterized in that: The handheld navigation terminal (200) is also provided with a liquid crystal display and buttons for completing human-computer interaction.

6. The anti-interference satellite navigation device according to claim 1, characterized in that: The antenna module (120) is an active antenna module.

7. The anti-interference satellite navigation device according to claim 1, characterized in that: The antenna modules (120) are four in number and are evenly distributed on the side surfaces of the helmet body (110).

8. An electronic device, characterized in that: An anti-interference satellite navigation device comprising any one of claims 1 to 7.

Images