Beidou No.3 hybrid one-wire communication device

Abstract

The utility model relates to a Beidou No.3 hybrid one-wire communication device. The problem of poor wiring effect of a passive communication cable in the prior art is solved. The device comprises a communication assembly box body, a Beidou surface acoustic wave filter and an LC filter are arranged in the communication assembly box body, radio frequency point signals compatible with the Beidou surface acoustic wave filter and the LC filter comprise an S frequency point signal, a B3 frequency point signal, a B2b frequency point signal, a B1 frequency point signal and an L frequency point signal, and the Beidou surface acoustic wave filter and the LC filter are connected with a patch type radio frequency combiner. The utility model has the advantages that the number of installed cables is reduced, the installation difficulty and the installation cost are reduced, the reliability of equipment is increased, and meanwhile, the signal crosstalk is reduced, and the communication stability is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of communication equipment, and in particular to a BeiDou 3 hybrid one-line communication device. Background Art

[0002] With the continuous construction and development of China's Beidou satellite communication and positioning technology, especially with the successful networking of Beidou-3 satellites, the Beidou frequency points are increasing, including S frequency point signals, B3 frequency point signals, B2b frequency point signals, B1 frequency point signals, L frequency point signals, etc. At the same time, it is also necessary to ensure the DC power supply of Beidou-3 antenna and the transmission of antenna equipment control signals.

[0003] In the existing technology, when the Beidou terminal is communicating, the instantaneous power consumption of the transmitted signal is large, and the power consumption is low when the signal is not transmitted; and the traditional connection method at this stage must use more power cable assemblies, signal transmission cable assemblies, and radio frequency cable assemblies. Especially on large equipment, the Beidou-3 antenna and the Beidou-3 receiving host are far apart. At the same time, when there are many types of cables, the cable wiring is difficult and the cable cost is high. The transmission of satellite signals and control signals will interfere with each other, thus interrupting the normal operation of the equipment.

[0004] In order to solve the shortcomings of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a Beidou message communication terminal with a one-line access network [CN201811549973.5], which includes a power supply / charging management circuit, an energy storage circuit, a Beidou transceiver circuit and an antenna circuit. The output end of the power supply step-down circuit is connected to the input end of the charging management circuit, and the output end of the charging management is connected to the input end of the energy storage circuit. The charging management circuit and the energy storage circuit are combined to accurately control the charging current and capacitance, so that the transmitting Beidou terminal can access the low-power network.

[0005] The above solution solves the problem of high power consumption of passive communication in the prior art to a certain extent, but the solution still has many shortcomings, such as: cable wiring is difficult, cable costs are high, satellite signals and control signal transmissions will interfere with each other, thereby interrupting the normal operation of the device. Summary of the invention

[0006] The purpose of the utility model is to provide a BeiDou-3 hybrid one-line communication device in view of the above problems.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a Beidou-3 hybrid one-line communication device, including a communication assembly box, in which a Beidou surface acoustic filter and an LC filter are arranged, and the RF frequency signals compatible with the Beidou surface acoustic filter and the LC filter include S frequency signals, B3 frequency signals, B2b frequency signals, B1 frequency signals, and L frequency signals, and the Beidou surface acoustic filter and the LC filter are connected to a chip-type RF combiner.

[0008] In the above-mentioned Beidou-3 hybrid one-line communication device, a DC power supply interface is provided at one end of the communication assembly box, and a one-line communication interface is provided on one side of the DC power supply interface, and a control interface is provided at the other end of the communication assembly box, and an L-frequency signal interface is provided on one side of the control interface.

[0009] In the above-mentioned Beidou-3 hybrid one-line communication device, one side of the communication assembly box 1 is respectively provided with an S frequency signal interface, a B3 frequency signal interface, a B2b frequency signal interface, and a B1 frequency signal interface.

[0010] In the above-mentioned Beidou-3 hybrid one-line communication device, the operating frequency of the S-frequency signal is 2491.75MHz±8.16MHz; gain: 11dB±1dB, and the input power is -50dBm.

[0011] In the above-mentioned Beidou-3 hybrid one-line communication device, the operating frequency of the B3 frequency signal is 1268.52MHz±10.23MHz; gain: 5dB±1dB, input power -50dBm.

[0012] In the above-mentioned Beidou-3 hybrid one-line communication device, the operating frequency of the B2b frequency signal is 1207.142MHz±10.23MHz; gain: 5dB±1dB, input power -50dBm.

[0013] In the above-mentioned Beidou-3 hybrid one-line communication device, the operating frequency of the B1 frequency signal is 1575.42MHz±16.368MHz; the gain is 1dB±1dB, and the input power is -50dBm.

[0014] In the above-mentioned Beidou-3 hybrid one-line communication device, the L frequency signal is 5, the operating frequency is: 1610MHz~1630MHz; the gain is: 10dB±1dB, and the input power is 0dBm.

[0015] In the above-mentioned Beidou-3 hybrid first-line communication device, the S frequency signal is connected to the chip-type RF combiner through the S frequency filter component, the B frequency signal is connected to the chip-type RF combiner through the B3 frequency filter component, the B2b frequency signal is connected to the chip-type RF combiner through the B2b frequency filter component, the B1 frequency signal is connected to the chip-type RF combiner through the B1 frequency filter component, and the L frequency signal is connected to the chip-type RF combiner 2 through the L frequency filter component after RF amplification.

[0016] In the above-mentioned Beidou-3 hybrid one-line communication device, the DC power supply interface is connected to an EMI filter, and the EMI filter is connected to a modulation module for signal modulation and then connected to a one-line communication interface for one-line output.

[0017] Compared with the existing technology, the advantages of the utility model are: using one coaxial cable to realize mixed one-line communication of Beidou-3 multi-frequency signals, power DC signals, and control signals, reducing the number of installed cables, reducing installation difficulty and installation costs, increasing equipment reliability, and reducing signal crosstalk to enhance communication stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the communication principle of the utility model;

[0020] Figure 3 It is a communication topology diagram in the utility model;

[0021] Figure 4 It is the input voltage control principle diagram in the utility model;

[0022] In the figure: communication assembly box 1, S frequency signal 11, S frequency signal interface 111, S frequency filter component 112, B3 frequency signal 12, B3 frequency signal interface 121, B3 frequency filter component 122, B2b frequency signal 13, B2b frequency signal interface 131, B2b frequency filter component 132, B1 frequency signal 14, B1 frequency signal interface 141, B1 frequency filter component 142, L frequency signal 15, L frequency filter component 151, chip RF combiner 2, DC power supply interface 3, one-line communication interface 4, control interface 5, L frequency signal interface 6, EMI filter 7, modulation module 8. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figure 1-4As shown, a Beidou-3 hybrid first-line communication device includes a communication assembly box 1, in which a Beidou surface acoustic wave filter and an LC filter are arranged. The RF frequency signals compatible with the Beidou surface acoustic wave filter and the LC filter include an S frequency signal 11, a B3 frequency signal 12, a B2b frequency signal 13, a B1 frequency signal 14, and an L frequency signal 15, and the Beidou surface acoustic wave filter and the LC filter are connected to a surface-mount RF combiner 2.

[0025] The RF input uses a customized broadband Beidou SAW filter and a self-developed LC filter, which are compatible with all RF frequencies of Beidou-3 and have a Beidou-3 one-line communication solution. It integrates Beidou-3 multi-frequency points and DC control signals, and uses a reliable SMA connector for one-line transmission.

[0026] A chip-type RF combiner with low insertion loss is used, which can meet specific bandwidth gain indicators.

[0027] In the above-mentioned Beidou-3 hybrid one-line communication device, a DC power supply interface 3 is provided at one end of the communication assembly box 1, and a one-line communication interface 4 is provided on one side of the DC power supply interface 3, and a control interface 5 is provided at the other end of the communication assembly box 1, and an L-frequency signal interface 6 is provided on one side of the control interface 5.

[0028] The one-line communication interface 4 is used to connect a coaxial cable.

[0029] In the above-mentioned Beidou-3 hybrid one-line communication device, an S frequency signal interface 111, a B3 frequency signal interface 121, a B2b frequency signal interface 131, and a B1 frequency signal interface 141 are respectively provided on one side of the communication assembly box 1.

[0030] In the above-mentioned Beidou-3 hybrid one-line communication device, the operating frequency of the S frequency signal 11 is 2491.75MHz±8.16MHz; gain: 11dB±1dB, and the input power is -50dBm.

[0031] In the above-mentioned Beidou-3 hybrid one-line communication device, the operating frequency of the B3 frequency signal 12 is 1268.52MHz±10.23MHz; gain: 5dB±1dB, input power -50dBm.

[0032] In the above-mentioned Beidou-3 hybrid one-line communication device, the operating frequency of the B2b frequency signal 13 is 1207.142MHz±10.23MHz; gain: 5dB±1dB, input power -50dBm.

[0033] In the above-mentioned Beidou-3 hybrid one-line communication device, the operating frequency of the B1 frequency signal 14 is 1575.42MHz±16.368MHz; the gain is 1dB±1dB, and the input power is -50dBm.

[0034] In the above-mentioned Beidou-3 hybrid one-line communication device, the L frequency signal is 15, the operating frequency is: 1610MHz~1630MHz; the gain is: 10dB±1dB and the input power is 0dBm.

[0035] In the above-mentioned Beidou-3 hybrid one-line communication device, the S frequency signal 11 is connected to the chip-type RF combiner 2 through the S frequency filter component 112, the B3 frequency signal 12 is connected to the chip-type RF combiner 2 through the B3 frequency filter component 122, the B2b frequency signal 13 is connected to the chip-type RF combiner 2 through the B2b frequency filter component 132, the B1 frequency signal 14 is connected to the chip-type RF combiner 2 through the B1 frequency filter component 142, and the L frequency signal 15 is connected to the chip-type RF combiner 2 through the L frequency filter component 151 after RF amplification.

[0036] In the above-mentioned Beidou-3 hybrid one-line communication device, the DC power supply interface 3 is connected to the EMI filter 7, and the EMI filter 7 is connected to the modulation module 8 for signal modulation and then connected to the one-line communication interface 4 for one-line output.

[0037] The control interface 5 is connected to the modulation module 8 via the isolation module.

[0038] This solution adopts a signal power supply voltage integrated control solution. The circuit uses an analog sampling circuit to sample the input voltage. When it is detected that the input voltage becomes +28V, the control circuit can control the power amplifier to work normally; when the input voltage becomes +20V, the control circuit can control the power amplifier to shut down.

[0039] To sum up, the principle of this embodiment is: by respectively arranging a broadband Beidou SAW filter and an LC filter compatible with all RF frequencies of Beidou 3 in the communication assembly box 1, and connecting the coaxial cable through the one-line communication interface 4, the Beidou 3 multi-frequency signal, power supply DC signal, and control signal can realize mixed one-line communication, thereby reducing the number of installed cables, reducing installation difficulty and installation cost, increasing equipment reliability, and reducing signal crosstalk to enhance communication stability.

[0040] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0041] Although this article uses more terms such as communication assembly box 1, S frequency signal 11, S frequency signal interface 111, S frequency filter component 112, B3 frequency signal 12, B3 frequency signal interface 121, B3 frequency filter component 122, B2b frequency signal 13, B2b frequency signal interface 131, B2b frequency filter component 132, B1 frequency signal 14, B1 frequency signal interface 141, B1 frequency filter component 142, L frequency signal 15, L frequency filter component 151, SMD RF combiner 2, DC power supply interface 3, one-line communication interface 4, control interface 5, L frequency signal interface 6, EMI filter 7, modulation module 8, etc., it does not exclude the possibility of using other terms. The use of these terms is only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A BeiDou-3 hybrid one-line communication device, comprising a communication assembly box (1), characterized in that: The communication assembly box (1) is provided with a Beidou surface acoustic wave filter and an LC filter, and the radio frequency signals compatible with the Beidou surface acoustic wave filter and the LC filter include an S frequency signal (11), a B3 frequency signal (12), a B2b frequency signal (13), a B1 frequency signal (14), and an L frequency signal (15), and the Beidou surface acoustic wave filter and the LC filter are connected to a surface-mount radio frequency combiner (2).

2. A BeiDou-3 hybrid one-line communication device according to claim 1, characterized in that: A DC power supply interface (3) is provided at one end of the communication assembly box body (1), and a one-line communication interface (4) is provided on one side of the DC power supply interface (3); a control interface (5) is provided at the other end of the communication assembly box body (1), and an L-frequency signal interface (6) is provided on one side of the control interface (5).

3. A BeiDou-3 hybrid one-line communication device according to claim 1, characterized in that: One side of the communication assembly box (1) is respectively provided with an S frequency signal interface (111), a B3 frequency signal interface (121), a B2b frequency signal interface (131), and a B1 frequency signal interface (141).

4. The BeiDou-3 hybrid one-line communication device according to claim 1, characterized in that: The operating frequency of the S frequency point signal (11) is 2491.75 MHz ± 8.16 MHz; the gain is 11 dB ± 1 dB, and the input power is -50 dBm.

5. The BeiDou-3 hybrid one-line communication device according to claim 1, characterized in that: The operating frequency of the B3 frequency point signal (12) is 1268.52 MHz±10.23 MHz; gain: 5 dB±1 dB, input power -50 dBm.

6. The BeiDou-3 hybrid one-line communication device according to claim 1, characterized in that: The operating frequency of the B2b frequency point signal (13) is 1207.142 MHz ± 10.23 MHz; gain: 5 dB ± 1 dB, input power -50 dBm.

7. The BeiDou-3 hybrid one-line communication device according to claim 1, characterized in that: The operating frequency of the B1 frequency point signal (14) is 1575.42 MHz ± 16.368 MHz; the gain is 1 dB ± 1 dB, and the input power is -50 dBm.

8. The BeiDou-3 hybrid one-line communication device according to claim 1, characterized in that: The L-frequency signal (15) has an operating frequency of 1610 MHz to 1630 MHz and a gain of 10 dB ± 1 dB (input power 0 dBm).

9. The BeiDou-3 hybrid one-line communication device according to claim 1, characterized in that: The S frequency signal (11) is connected to the patch type radio frequency combiner (2) via the S frequency filter component (112), the B3 frequency signal (12) is connected to the patch type radio frequency combiner (2) via the B3 frequency filter component (122), the B2b frequency signal (13) is connected to the patch type radio frequency combiner (2) via the B2b frequency filter component (132), the B1 frequency signal (14) is connected to the patch type radio frequency combiner (2) via the B1 frequency filter component (142), and the L frequency signal (15) is connected to the patch type radio frequency combiner (2) via the L frequency filter component (151) after radio frequency amplification.

10. The BeiDou-3 hybrid one-line communication device according to claim 2, characterized in that: The DC power supply interface (3) is connected to an EMI filter (7), and the EMI filter (7) is connected to a modulation module (8) for signal modulation and then connected to a one-line communication interface (4) for one-line output.

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