Mini beidou short message communication module

Abstract

The utility model discloses a kind of miniature big dipper short message communication module, wherein, including: radio frequency baseband integration SOC chip;Big dipper short message receiving radio frequency circuit, the input end of this big dipper short message receiving radio frequency circuit is electrically connected with big dipper short message receiving antenna, the output end of this big dipper short message receiving radio frequency circuit is electrically connected with the radio frequency baseband integration SOC chip;Big dipper short message transmitting radio frequency circuit, the input end of this big dipper short message transmitting radio frequency circuit is electrically connected with the radio frequency baseband integration SOC chip, the output end of this big dipper short message transmitting radio frequency circuit is electrically connected with big dipper short message transmitting antenna;Satellite positioning receiving radio frequency circuit, the input end of this satellite positioning receiving radio frequency circuit is electrically connected with satellite positioning receiving antenna, the output end of this satellite positioning receiving radio frequency circuit is electrically connected with the radio frequency baseband integration SOC chip.The utility model can realize big dipper short message communication and satellite positioning function, also realize small size simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of BeiDou short message module technology, and in particular to a miniature BeiDou short message communication module. Background Technology

[0002] BeiDou short message communication is a unique two-way message communication technology of the BeiDou satellite navigation system. Its core value lies in its two-way communication capability without reliance on terrestrial networks. Its applications mainly cover emergency rescue and disaster management, marine fisheries and ocean shipping, field operations and outdoor exploration, public safety and border patrol, critical infrastructure monitoring and national defense and military applications. It is an important means to ensure the safety of life and property and business continuity, highlighting the strategic significance of an independent and controllable satellite system.

[0003] To achieve short message communication functionality, terminal products have two technical options: chip-level design and short message module design. The first option has a high technical barrier, making development, production, and delivery difficult, and quality is hard to guarantee. The second option significantly reduces the development difficulty for OEMs; however, due to the large package size of the short message baseband and RF chips, current common modules are quite large, reaching 30mm*35mm, which is not conducive to miniaturizing the overall product design.

[0004] In addition, the above two solutions often do not include BeiDou positioning functionality. If BeiDou positioning is required, the size will need to be further increased. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this utility model is to provide a miniature BeiDou short message communication module capable of realizing BeiDou short message communication and satellite positioning functions, while also achieving a small size.

[0006] The technical solution adopted in this utility model is: In a first aspect, this utility model provides a miniature BeiDou short message communication module, comprising: an integrated radio frequency baseband SOC chip; a BeiDou short message receiving radio frequency circuit, the input terminal of which is electrically connected to a BeiDou short message receiving antenna, and the output terminal of which is electrically connected to the integrated radio frequency baseband SOC chip; a BeiDou short message transmitting radio frequency circuit, the input terminal of which is electrically connected to the integrated radio frequency baseband SOC chip, and the output terminal of which is electrically connected to a BeiDou short message transmitting antenna; and a satellite positioning receiving radio frequency circuit, the input terminal of which is electrically connected to a satellite positioning receiving antenna, and the output terminal of which is electrically connected to the integrated radio frequency baseband SOC chip.

[0007] The BeiDou short message receiving radio frequency circuit includes a first filter, a low noise amplifier, and a second filter connected sequentially along the signal input direction. The BeiDou short message receiving antenna receives the BeiDou short message receiving signal. The BeiDou short message receiving signal is transmitted to the first filter for filtering, then amplified by the low noise amplifier, and finally filtered again by the second filter before being input to the integrated radio frequency baseband SOC chip.

[0008] The BeiDou short message transmission radio frequency circuit includes a third filter and a power amplifier connected sequentially along the signal output direction. The third filter receives the BeiDou short message transmission signal from the integrated radio frequency baseband SOC chip. The BeiDou short message transmission signal is filtered by the third filter, then amplified by the power amplifier, and finally transmitted by the BeiDou short message transmission antenna.

[0009] The satellite positioning receiving radio frequency circuit includes a fourth filter. The satellite positioning receiving antenna receives the BeiDou positioning signal, which is then filtered by the fourth filter and input to the integrated radio frequency baseband SOC chip.

[0010] Among them, the first filter, the second filter, the third filter, and the fourth filter are all surface acoustic wave (SAW) filters.

[0011] This integrated RF baseband SOC chip supports BeiDou-3 short message transmission and reception, Inmarsat L-band reception service, and the new generation BeiDou-3 signal system. It also supports receiving all frequency band signals (L1, L2, L5, L6) from GPS, BDS, GLONASS, Galileo, NavIC, QZSS, and SBAS satellite systems.

[0012] Among them, some components of the miniature Beidou short message communication module adopt the full surface mounting process, the smallest component adopts the 0201 packaging process, and the circuit board adopts the multi-layer high-density interconnection process.

[0013] It also includes a serial communication interface and a SIM card interface; the power supply operating voltage of this miniature Beidou short message communication module is 4.5~5.5V, the power consumption of pure GNSS positioning is less than 120mW, and the peak power consumption of short message communication is less than 10W.

[0014] The input terminal of the BeiDou short message receiving radio frequency circuit is a short message S-band antenna input interface, the output terminal of the BeiDou short message transmitting radio frequency circuit is a short message L-band transmitting antenna interface, and the input terminal of the satellite positioning receiving radio frequency circuit is a GNSS antenna input interface.

[0015] The miniature Beidou short message communication module measures 16mm*18mm*2.4mm, and the integrated RF baseband SOC chip measures 4.5mm*4.5mm. The integrated RF baseband SOC chip uses the HD7010 chip developed by Huada Beidou Company.

[0016] The beneficial effects of this utility model are: This utility model discloses a BeiDou short message communication module comprising an integrated RF baseband SOC chip, a BeiDou short message receiving RF circuit, a BeiDou short message transmitting RF circuit, and a satellite positioning receiving RF circuit. The BeiDou short message receiving RF circuit receives BeiDou short message signals, the BeiDou short message transmitting RF circuit transmits BeiDou short message signals, and the satellite positioning receiving RF circuit receives BeiDou positioning signals, thus enabling both BeiDou short message communication and satellite positioning functions. Furthermore, this utility model utilizes an integrated RF baseband SOC chip as the main control chip, resulting in a small size and volume.

[0017] Furthermore, the RF baseband integrated SOC chip of this utility model adopts the HD7010 chip developed by Huada Beidou Company. The size of this RF baseband integrated SOC chip is 4.5mm*4.5mm, thereby controlling the size of this utility model within 16mm*18mm*2.4mm. Compared with the size of existing products, the size can be greatly reduced, making this utility model more suitable for terminal product applications. Attached Figure Description

[0018] Figure 1 This is a structural block diagram of one embodiment of the miniature Beidou short message communication module of this utility model. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0020] Please see Figure 1 , Figure 1 This is a structural block diagram of one embodiment of the miniature Beidou short message communication module of this utility model. Figure 1 As shown, the miniature Beidou short message communication module 1 includes an integrated radio frequency baseband SOC chip 11, a Beidou short message receiving radio frequency circuit 12, a Beidou short message transmitting radio frequency circuit 13, and a satellite positioning receiving radio frequency circuit 14.

[0021] The input terminal of the BeiDou short message receiving RF circuit 12 is electrically connected to the BeiDou short message receiving antenna 2, and the output terminal of the BeiDou short message receiving RF circuit 12 is electrically connected to the RF baseband integrated SOC chip 11. The BeiDou short message receiving RF circuit 12 includes a first surface acoustic wave (SAW) filter 121, a low noise amplifier 122, and a second SAW filter 123 connected sequentially along the signal input direction. The BeiDou short message receiving antenna 2 receives the BeiDou short message signal. The BeiDou short message receiving signal is transmitted to the first SAW filter 121 for filtering, then amplified by the low noise amplifier 122, and finally filtered by the second SAW filter 123 before being input to the RF baseband integrated SOC chip 11.

[0022] The input terminal of the BeiDou short message transmitting RF circuit 13 is electrically connected to the integrated RF baseband SOC chip 11, and the output terminal of the BeiDou short message transmitting RF circuit 13 is electrically connected to the BeiDou short message transmitting antenna 3. The BeiDou short message transmitting RF circuit 13 includes a third surface acoustic wave (SAW) filter 131 and a power amplifier 132 connected sequentially along the signal output direction. The third SAW filter 131 receives the BeiDou short message transmission signal from the integrated RF baseband SOC chip 11. The BeiDou short message transmission signal is filtered by the third SAW filter 131, then amplified by the power amplifier 132, and finally transmitted by the BeiDou short message transmitting antenna 3.

[0023] The input terminal of the satellite positioning receiving RF circuit 14 is electrically connected to the satellite positioning receiving antenna 4, and the output terminal of the satellite positioning receiving RF circuit 14 is electrically connected to the integrated RF baseband SOC chip 11. The satellite positioning receiving RF circuit 14 includes a fourth surface acoustic wave (SAW) filter 141. The satellite positioning receiving antenna 4 receives BeiDou positioning signals, which are then filtered by the fourth SAW filter 141 before being input to the integrated RF baseband SOC chip 11. The satellite positioning receiving antenna 4 supports receiving positioning signals not only from the BeiDou system but also from other satellite systems such as GLONASS and Galileo. Preferably, the satellite positioning receiving antenna 4 is a BeiDou positioning receiving antenna to support BeiDou dual-frequency positioning functionality.

[0024] The first surface acoustic wave (SAW) filter 121, the second SAW filter 123, the third SAW filter 131, and the fourth SAW filter 141 are all SAW filters. The advantage of using SAW filters is that they are manufactured using semiconductor planar technology, allowing for sizes as small as millimeters. Of course, the first SAW filter 121, the second SAW filter 123, the third SAW filter 131, and the fourth SAW filter 141 can also be replaced with other types of small filters.

[0025] Preferably, the integrated RF baseband SOC chip 11 uses the HD7010 chip developed by Huada Beidou Co., Ltd. The HD7010 is China's first highly integrated 22nm process, low-power, high-performance integrated RF baseband SOC chip. This integrated RF baseband SOC chip 11 supports Beidou-3 short message transmission and reception, Inmarsat L-band reception service, and the new generation Beidou-3 signal system. It also supports receiving all frequency band signals (L1, L2, L5, L6) from GPS, BDS, GLONASS, Galileo, NavIC, QZSS, and SBAS satellite systems. The integrated RF baseband SOC chip has a size of 4.5mm*4.5mm.

[0026] To achieve a small size, some components of this miniature Beidou short message communication module are made using a full-surface mounting process, the smallest component uses a 0201 packaging process, and the circuit board uses a multi-layer high-density interconnect process.

[0027] The miniature BeiDou short message communication module operates at a power supply voltage of 4.5~5.5V, with a power consumption of less than 120mW for pure GNSS positioning and less than 10W for peak power consumption during short message communication. This results in low power consumption for the module.

[0028] This miniature BeiDou short message communication module also includes a serial communication interface and a SIM card interface.

[0029] The input terminal of the BeiDou short message receiving radio frequency circuit 12 is a short message S-band antenna input interface, the output terminal of the BeiDou short message transmitting radio frequency circuit 13 is a short message L-band transmitting antenna interface, and the input terminal of the satellite positioning receiving radio frequency circuit 14 is a GNSS antenna input interface.

[0030] The dimensions of this miniature BeiDou short message communication module are 16mm*18mm*2.4mm. This size is much smaller than that of existing products, making it more suitable for mounting on terminal products.

[0031] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A miniature BeiDou short message communication module, characterized in that, include: Integrated RF baseband SOC chip; A BeiDou short message receiving radio frequency circuit, wherein the input terminal of the BeiDou short message receiving radio frequency circuit is electrically connected to the BeiDou short message receiving antenna, and the output terminal of the BeiDou short message receiving radio frequency circuit is electrically connected to the integrated radio frequency baseband SOC chip; The BeiDou short message transmission radio frequency circuit has its input terminal electrically connected to the integrated radio frequency baseband SOC chip, and its output terminal electrically connected to the BeiDou short message transmission antenna. A satellite positioning receiving radio frequency circuit, wherein the input terminal of the satellite positioning receiving radio frequency circuit is electrically connected to the satellite positioning receiving antenna, and the output terminal of the satellite positioning receiving radio frequency circuit is electrically connected to the integrated radio frequency baseband SOC chip.

2. The miniature Beidou short message communication module according to claim 1, characterized in that, The BeiDou short message receiving radio frequency circuit includes a first filter, a low noise amplifier, and a second filter connected sequentially along the signal input direction. The BeiDou short message receiving antenna receives the BeiDou short message receiving signal. The BeiDou short message receiving signal is transmitted to the first filter for filtering, then amplified by the low noise amplifier, and finally filtered again by the second filter before being input to the integrated radio frequency baseband SOC chip.

3. The miniature Beidou short message communication module according to claim 2, characterized in that, The BeiDou short message transmission radio frequency circuit includes a third filter and a power amplifier connected sequentially along the signal output direction. The third filter receives the BeiDou short message transmission signal from the integrated radio frequency baseband SOC chip. The BeiDou short message transmission signal is filtered by the third filter, then amplified by the power amplifier, and then transmitted by the BeiDou short message transmission antenna.

4. The miniature Beidou short message communication module according to claim 3, characterized in that, The satellite positioning receiving radio frequency circuit includes a fourth filter. The satellite positioning receiving antenna receives the BeiDou positioning signal. The BeiDou positioning signal is filtered by the fourth filter and then input to the integrated radio frequency baseband SOC chip.

5. The miniature Beidou short message communication module according to claim 4, characterized in that, The first filter, the second filter, the third filter, and the fourth filter are all surface acoustic wave (SAW) filters.

6. The miniature Beidou short message communication module according to claim 1, characterized in that, The integrated RF baseband SOC chip supports BeiDou-3 short message transmission and reception, Inmarsat L-band reception service, and the new generation BeiDou-3 signal system. It also supports receiving all frequency band signals (L1, L2, L5, L6) from GPS, BDS, GLONASS, Galileo, NavIC, QZSS, and SBAS satellite systems.

7. The miniature Beidou short message communication module according to claim 1, characterized in that, Some components of the miniature Beidou short message communication module are manufactured using a full-surface mounting process, the smallest component uses a 0201 packaging process, and the circuit board uses a multi-layer high-density interconnect process.

8. The miniature Beidou short message communication module according to claim 1, characterized in that, It also includes a serial communication interface and a SIM card interface; the power supply operating voltage of the micro Beidou short message communication module is 4.5~5.5V, the power consumption of pure GNSS positioning is less than 120mW, and the peak power consumption of short message communication is less than 10W.

9. The miniature Beidou short message communication module according to claim 1, characterized in that, The input terminal of the BeiDou short message receiving radio frequency circuit is a short message S-band antenna input interface, the output terminal of the BeiDou short message transmitting radio frequency circuit is a short message L-band transmitting antenna interface, and the input terminal of the satellite positioning receiving radio frequency circuit is a GNSS antenna input interface.

10. The miniature BeiDou short message communication module according to any one of claims 1 to 9, characterized in that, The dimensions of the miniature Beidou short message communication module are 16mm*18mm*2.4mm, and the dimensions of the integrated radio frequency baseband SOC chip are 4.5mm*4.5mm. The integrated radio frequency baseband SOC chip uses the HD7010 chip developed by Huada Beidou Company.

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