Multi-antenna wireless communication device

Abstract

The utility model relates to a multi-antenna wireless communication device. The device comprises a CORS station observation pillar, a wireless data transmission terminal, a GNSS receiver and a plurality of patch conformal antennas. The wireless data transmission terminal is located in the CORS station observation pillar; the plurality of patch conformal antennas are arranged on the outer wall of the CORS station observation pillar; the patch conformal antenna is connected to the wireless data transmission terminal through an antenna feeder, and the wireless data transmission terminal is connected to the GNSS receiver through an Ethernet cable. According to the utility model, a wireless ad hoc network system can be conveniently and rapidly built, the efficient network access of the CORS station is realized, the conformal design of the antenna and the observation pillar is adopted, the 360-degree full coverage of the observation pillar is realized by using the four patch antennas, the channel switching can be carried out, and the communication quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of surveying and mapping communications, and in particular to a multi-antenna wireless communication device. Background Art

[0002] At present, with the official launch of the BeiDou-3 global satellite navigation system, domestic GNSS (Global Navigation Satellite System) positioning technology has ushered in new development opportunities, and GNSS technology is becoming more and more widely used in the surveying and mapping industry. The construction of the CORS (Continuously Operating Reference Stations) system is of great significance as the latest technology and development trend of GPS (Global Positioning System) in China and even the world. In order to ensure the long-term and stable operation of the CORS system, more redundancy considerations are needed in network communications. Wireless ad hoc networks do not rely on preset infrastructure, and have the characteristics of temporary networking, rapid deployment, and strong anti-destruction capabilities. It is undoubtedly a useful supplement to the network access of the CORS system. Summary of the invention

[0003] The utility model aims to provide a multi-antenna wireless communication device, which can conform to the CORS station observation pier and realize the self-organizing network communication function of the CORS system network.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A multi-antenna wireless communication device, the device comprising a CORS station observation tower conformal, a wireless data transmission terminal conformal, a GNSS receiver conformal and a plurality of patch conformal antenna conformal;

[0006] The wireless data transmission terminal is conformally located inside the CORS station observation pier conformally;

[0007] A plurality of said patch conformal antennas are conformally arranged on the conformal outer wall of said CORS station observation pier;

[0008] The patch conformal antenna is conformally connected to the wireless data transmission terminal through an antenna feeder, and the wireless data transmission terminal is conformally connected to the GNSS receiver through an Ethernet cable.

[0009] Further, the wireless data transmission terminal conformal includes a multi-antenna channel interface conformal;

[0010] The conformal outer wall of the CORS station observation pier has linear holes;

[0011] The antenna feed lines of the multiple conformal patch antennas conformally pass through the outer wall line holes of the CORS station observation pier conformally from outside to inside, and are respectively connected to the various interfaces of the conformal multi-antenna channel interface.

[0012] Furthermore, the wireless data transmission terminal conformal also includes a channel switching switch conformal;

[0013] The multi-antenna channel interface is conformally connected to the channel switching switch through internal printed circuit board traces.

[0014] Furthermore, the wireless data transmission terminal conformal also includes a radio frequency module conformal and a baseband module conformal;

[0015] The channel switching switch is conformally connected to the baseband module through the RF module, and the baseband module is conformally connected to the channel switching switch.

[0016] Furthermore, the wireless data transmission terminal conformality also includes network port conformality;

[0017] The baseband module is conformally connected to the network port, and then conformally connected to the GNSS receiver through the Ethernet cable.

[0018] Furthermore, the number of the conformal patch antennas is four, and the four conformal patch antennas are evenly distributed on the conformal outer wall of the CORS station observation pier, and the conformal horizontal beam angle of the conformal patch antenna is 90 degrees.

[0019] Furthermore, the number of the conformal interfaces of the multi-antenna channel interface is four, and the four conformal patch antennas are respectively conformally connected to one of the conformal interfaces of the multi-antenna channel interface through one antenna feed line.

[0020] Furthermore, the GNSS receiver is conformally located outside the CORS station observation pier conformally, an opening is set at the bottom of the outer wall of the CORS station observation pier conformally, and the Ethernet cable of the wireless data transmission terminal conformally passes through the outer wall opening of the CORS station observation pier conformally from the inside to the outside to connect to the GNSS receiver conformally.

[0021] Furthermore, the patch conformal antenna is conformally adhered to the conformal outer wall of the CORS station observation pier by bonding.

[0022] Furthermore, the plurality of patch conformal antennas are conformally located at the same height and are located at the top of the conformal outer periphery of the CORS station observation pier.

[0023] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0024] The utility model provides a multi-antenna wireless communication device that is not limited by the preset infrastructure, can quickly and easily build a wireless ad hoc network system, and realize the efficient access of CORS stations to the network. In addition, the utility model adopts a design that conforms to the antenna and the observation pier, and uses four patch antennas to achieve 360-degree coverage around the observation pier, and can switch channels to ensure communication quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, drawings of other embodiments can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural diagram of the utility model.

[0027] The symbols in the figure are:

[0028] 1-CORS station observation tower, 2-wireless data transmission terminal, 3-GNSS receiver, 4-patch conformal antenna, 5-multi-antenna channel interface, 6-channel switching switch, 7-RF module, 8-baseband module, 9-network port, 10-Ethernet cable, 11-antenna feeder. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0030] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships 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.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "access", "setting", etc. should be understood in a broad sense, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The utility model provides a multi-antenna wireless communication device, which can be easily conformal with the CORS observation tower, and can freely switch among multiple antenna channels to communicate with one or more wireless data transmission devices, and can realize the CORS wireless self-organizing network system without changing the existing structural form of the CORS station.

[0033] like Figure 1 The device includes a CORS station observation tower 1, a wireless data transmission terminal 2, a GNSS receiver 3 and multiple patch conformal antennas 4.

[0034] The CORS station observation pier 1 is an existing structure, which can generally be a cylindrical pier with a cavity inside. The utility model improves on the existing structure of the existing CORS station observation pier 1, and places the wireless data transmission terminal 2 inside the CORS station observation pier 1. It is not restricted by the preset infrastructure, and can conveniently and quickly build a wireless self-organizing network system to achieve efficient access of the CORS station to the network.

[0035] A plurality of patch conformal antennas 4 are arranged on the outer wall of the CORS station observation pier 1. There are four patch conformal antennas 4, which are evenly distributed on the outer wall of the CORS station observation pier 1, and the horizontal beam angle of the patch conformal antenna 4 is 90 degrees. The patch conformal antenna 4 is connected to the wireless data transmission terminal 2 through the antenna feeder 11, and further, the wireless data transmission terminal 2 is connected to the GNSS receiver 3 through the Ethernet cable 10. The GNSS receiver 3 is used to collect satellite positioning and navigation data, and transmit it to the wireless data transmission terminal 2 through the Ethernet cable 10.

[0036] The wireless data transmission terminal 2 in the utility model includes a multi-antenna channel interface 5, a channel switching switch 6, a radio frequency module 7, a baseband module 8 and a network port 9. Among them, the number of interfaces of the multi-antenna channel interface 5 is four. The outer wall of the CORS station observation pier 1 has a wire hole, and the antenna feed lines 11 of the four patch conformal antennas 4 pass through the outer wall wire holes of the CORS station observation pier 1 from the outside to the inside, and are respectively connected to each interface of the multi-antenna channel interface 5. Further, the multi-antenna channel interface 5 is connected to the channel switching switch 6 through the internal printed circuit board printed wire, the channel switching switch 6 is connected to the baseband module 8 through the radio frequency module 7, the baseband module 8 is connected to the channel switching switch 6, and the baseband module 8 is connected to the network port 9. The GNSS receiver 3 is located outside the CORS station observation pier 1, and an opening is set at the bottom of the outer wall of the CORS station observation pier 1. The Ethernet cable 10 of the wireless data transmission terminal 2 passes through the outer wall opening of the CORS station observation pier 1 from the inside to the outside to connect to the GNSS receiver 3.

[0037] The channel switching switch 6 is used for the baseband module 8 to control the four antenna channels to select one channel to be connected with the RF module 9. The RF module 7 is used to mix and up-convert the baseband signal to the RF frequency domain, or down-convert the RF signal to the baseband frequency domain. The baseband module 8 is used to encode and modulate the Ethernet data into a baseband signal, or to decode and demodulate the baseband signal into Ethernet data. In addition, the baseband module 8 controls the channel switching switch 6 to select one antenna channel to be connected with the RF module 7. When the wireless data transmission terminal 2 is powered on and started, one channel will be selected by default.

[0038] The patch conformal antenna 4 is adhered to the outer wall of the CORS station observation pier 1 by bonding, and is used to transmit and receive wireless signals. Multiple patch conformal antennas 4 are located at the same height and at the top of the outer periphery of the CORS station observation pier 1 to ensure communication quality, and are evenly distributed according to 1 / 4 of the circumference. The utility model designs four patch conformal antennas 4, with an antenna angle of about 90 degrees. One patch is fixed every 90 degrees on the 360-degree circumference of the outer wall of the observation pier. The antenna feeder 11 is connected to the multi-antenna channel interface 5 of the wireless data transmission terminal 2 through a wire hole, so that the antenna of the wireless data transmission terminal 2 covers a range of 360 degrees around the observation pier. At the same time, the baseband module 8 of the wireless data transmission terminal 2 controls the channel selection of the channel switching switch 6, and performs data communication with one or more devices with good signal quality, realizing free channel selection and ensuring communication quality.

[0039] The wireless data transmission terminal 2, GNSS receiver 3, patch conformal antenna 4, multi-antenna channel interface 5, channel switching switch 6, radio frequency module 7, and baseband module 8 involved in the utility model are all existing devices. The utility model does not improve their internal structures, nor does it improve the operating methods of each device. Each device realizes the above functions as it has its own functions, and any device that can realize the above functions can be used for the implementation of the utility model.

[0040] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. A multi-antenna wireless communication device, characterized in that: The device comprises a CORS station observation tower (1), a wireless data transmission terminal (2), a GNSS receiver (3) and a plurality of patch conformal antennas (4); The wireless data transmission terminal (2) is located inside the CORS station observation tower (1); A plurality of the patch conformal antennas (4) are arranged on the outer wall of the CORS station observation pier (1); The patch conformal antenna (4) is connected to the wireless data transmission terminal (2) via an antenna feeder (11), and the wireless data transmission terminal (2) is connected to the GNSS receiver (3) via an Ethernet cable (10).

2. A multi-antenna wireless communication device according to claim 1, characterized in that: The wireless data transmission terminal (2) comprises a multi-antenna channel interface (5); The outer wall of the CORS station observation pier (1) has a wire hole; The antenna feed lines (11) of the plurality of patch conformal antennas (4) pass through the outer wall wire holes of the CORS station observation pier (1) from the outside to the inside, and are respectively connected to the respective interfaces of the multi-antenna channel interface (5).

3. A multi-antenna wireless communication device according to claim 2, characterized in that: The wireless data transmission terminal (2) also includes a channel switching switch (6); The multi-antenna channel interface (5) is connected to the channel switching switch (6) via internal printed circuit board printed wires.

4. A multi-antenna wireless communication device according to claim 3, characterized in that: The wireless data transmission terminal (2) also includes a radio frequency module (7) and a baseband module (8); The channel switching switch (6) is connected to the baseband module (8) via the radio frequency module (7), and the baseband module (8) is connected to the channel switching switch (6).

5. A multi-antenna wireless communication device according to claim 4, characterized in that: The wireless data transmission terminal (2) also includes a network port (9); The baseband module (8) is connected to the network port (9), and further connected to the GNSS receiver (3) via the Ethernet cable (10).

6. A multi-antenna wireless communication device according to claim 5, characterized in that: The number of the patch conformal antennas (4) is four, and the four patch conformal antennas (4) are evenly distributed on the outer wall of the CORS station observation pier (1), and the horizontal beam angle of the patch conformal antenna (4) is 90 degrees.

7. A multi-antenna wireless communication device according to claim 6, characterized in that: The number of interfaces of the multi-antenna channel interface (5) is four, and the four patch conformal antennas (4) are respectively connected to one interface of the multi-antenna channel interface (5) via one of the antenna feed lines (11).

8. A multi-antenna wireless communication device according to claim 7, characterized in that: The GNSS receiver (3) is located outside the CORS station observation pier (1), an opening is provided at the bottom of the outer wall of the CORS station observation pier (1), and the Ethernet cable (10) of the wireless data transmission terminal (2) passes through the outer wall opening of the CORS station observation pier (1) from the inside to the outside and is connected to the GNSS receiver (3).

9. A multi-antenna wireless communication device according to claim 8, characterized in that: The patch conformal antenna (4) is adhered to the outer wall of the CORS station observation pier (1) by bonding.

10. A multi-antenna wireless communication device according to claim 9, characterized in that: The plurality of patch conformal antennas (4) are located at the same height and are located at the top of the outer periphery of the CORS station observation tower (1).

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