Multi-antenna fusion reinforcement equipment system

Abstract

The invention discloses a multi-antenna fusion reinforcement equipment system which comprises a high-strength reinforcement shell, a multi-band antenna array, a maximum ratio combination (MRC) fusion processing module and a self-adaptive signal enhancement module. According to the system, a shell is made of a carbon fiber or aluminum magnesium alloy light high-strength material and is subjected to three-proofing treatment; the antenna units in the multi-band antenna array are distributed at different positions in the shell, so that all-directional signal receiving is realized; the MRC fusion processing module performs optimal weighted combination on the multiple antenna signals according to the channel state information; the self-adaptive signal enhancement module adopts a low-noise amplifier with the noise coefficient smaller than 1dB and is integrated with a self-adaptive gain control circuit, and the amplification factor is dynamically adjusted. According to the system, through the organic combination of the multi-antenna diversity and the reinforcement technology, the communication reliability in a severe environment is remarkably improved, the multi-antenna diversity gain is fully exerted, the multi-band broadband coverage is realized, and the wireless communication requirement in an extreme environment is met.

Description

Technical Field

[0001] This invention relates to the field of wireless communication technology, specifically to a multi-antenna fusion and hardening device system. Background Technology

[0002] The rapid development of wireless communication technology has driven mobile communication devices to continuously evolve towards miniaturization, integration, and intelligence. In increasingly complex application environments, traditional single-antenna communication systems can no longer meet users' higher requirements for communication quality and reliability. To overcome multipath fading and random interference in wireless channels, spatial diversity technology has emerged. It significantly improves system performance by deploying multiple antennas at the transmitting or receiving end and utilizing the spatial redundancy between antennas to obtain diversity gain.

[0003] However, complex and harsh working environments pose a severe challenge to the reliability of communication equipment. Wireless channels in harsh environments introduce stronger fading, interference, and noise, seriously affecting the communication quality of mobile devices. Simultaneously, extreme physical conditions such as high and low temperatures, strong vibrations, and corrosive gases can directly damage communication equipment and reduce its lifespan. Therefore, how to fully utilize the diversity gain of multiple antennas while ensuring the environmental adaptability of the equipment has become a critical technical problem that urgently needs to be solved.

[0004] Although existing solutions have made some progress in specific fields, how to organically combine multi-antenna diversity with hardening technology to design a comprehensive communication system that can reliably operate in harsh environments remains a topic that needs further exploration. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-antenna fusion and hardening device system, including a high-strength hardened shell, a multi-band antenna array, a maximum ratio fusion processing module, and an adaptive signal enhancement module;

[0006] The antenna elements in the multi-band antenna array are distributed in different positions inside the high-strength reinforced shell to achieve omnidirectional signal reception.

[0007] The maximum ratio merging and fusion processing module performs optimal weighted merging of multiple antenna signals based on channel state information to obtain a fused output signal.

[0008] The adaptive signal enhancement module uses adaptive gain control technology to dynamically adjust the amplification factor and amplify the fused output signal to output the optimal output signal.

[0009] Furthermore, the high-strength reinforced outer shell is made of lightweight, high-strength materials such as carbon fiber or aluminum-magnesium alloy, and is treated to be moisture-proof, salt spray-proof, and mildew-proof.

[0010] Furthermore, the multi-band antenna array includes multiple antenna elements operating in different frequency bands, and the gain of each antenna element is 38dBi.

[0011] The omnidirectional antenna has a radiation pattern of 360°, while the directional antenna has a beamwidth of 60° to 120°.

[0012] Furthermore, the fused output signal output by the maximum ratio merging and fusion processing module is as follows:

[0013] S combined =∑α i ×S i (1)

[0014] In the formula, α i S is the fusion coefficient; i The signal for antenna i; S combined To fuse the output signal.

[0015] Furthermore, the fusion coefficient Let h be the channel gain of the i-th signal. i .

[0016] Furthermore, the adaptive signal enhancement module employs a low-noise amplifier with a noise figure of less than 1dB and integrates an adaptive gain control circuit to dynamically adjust the amplifier gain according to the input signal amplitude, ensuring that the amplification factor satisfies the following formula:

[0017] 20×lg(V out / V in ) = G amp (2)

[0018] Among them, V in V is the amplitude of the input signal. out G is the desired output signal amplitude. amp V is the amplifier gain; out / V in This is the magnification factor.

[0019] Furthermore, the dynamic range of the adaptive gain control circuit is not less than 30dB, and the total gain range of the amplifier is between 20 and 40dB.

[0020] Furthermore, the system also includes a radio frequency cable connecting the multi-band antenna array and the maximum ratio merging and fusion processing module;

[0021] The radio frequency cable is equipped with electromagnetic shielding and insulation protection.

[0022] A wireless communication method based on the multi-antenna fusion hardened device system includes the following steps:

[0023] S1. Receives radio frequency signals through multiple antenna units distributed at different locations inside the high-strength reinforced shell;

[0024] S2. The radio frequency signals received by the multi-antenna unit are introduced into the MRC fusion processing module, and the weighting coefficients of each signal are calculated according to the channel state information and then merged to obtain the fused output signal.

[0025] S3. The adaptive signal enhancement module dynamically adjusts the amplification factor according to the radio frequency signal and amplifies the fused output signal to output the optimal output signal.

[0026] The technical effects of this invention are undeniable, and its beneficial effects are as follows:

[0027] 1) Significantly improves communication reliability in harsh environments. The system employs high-strength, lightweight materials and professional tri-proof technology to meticulously construct a ruggedized shell, greatly enhancing the equipment's environmental adaptability. Simultaneously, advanced array optimization algorithms and device integration technology ensure the antenna system can operate stably under extreme conditions, suppressing external interference and guaranteeing reliable and continuous communication links.

[0028] 2) Fully utilize the diversity gain of multiple antennas to improve communication performance. This system employs multi-antenna fusion processing based on the maximum ratio combining (MRC) criterion. By performing optimal weighted summation of diversity signals, significant diversity gain is achieved without increasing transmit power, enabling high-quality data transmission even in harsh channel environments. Simultaneously, advanced adaptive modulation and coding techniques further improve spectral efficiency.

[0029] 3) Achieve multi-band broadband coverage and improve equipment flexibility. The system integrates multiple broadband antenna units operating in different frequency bands, which can be dynamically switched and configured according to actual application needs, easily achieving full-band coverage. The broadband multi-frequency feature provides strong support for the flexible deployment and application of the equipment in changing environments. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall system structure according to an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the MRC fusion processing flow according to an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the adaptive signal enhancement module according to an embodiment of the present invention. Detailed Implementation

[0033] The present invention will be further described below with reference to embodiments, but it should not be construed that the scope of the present invention is limited to the following embodiments. Various substitutions and modifications made based on ordinary technical knowledge and common practices in the art without departing from the above-described technical concept of the present invention should be included within the scope of protection of the present invention.

[0034] Example 1:

[0035] See Figures 1 to 3 A multi-antenna fusion and hardening device system includes a high-strength hardened shell, a multi-band antenna array, a maximum ratio fusion processing module, and an adaptive signal enhancement module;

[0036] The antenna elements in the multi-band antenna array are distributed in different positions inside the high-strength reinforced shell to achieve omnidirectional signal reception.

[0037] The maximum ratio merging and fusion processing module performs optimal weighted merging of multiple antenna signals based on channel state information to obtain a fused output signal.

[0038] The adaptive signal enhancement module uses adaptive gain control technology to dynamically adjust the amplification factor and amplify the fused output signal to output the optimal output signal.

[0039] Example 2:

[0040] A multi-antenna fusion hardening device system, with the same technical content as Embodiment 1, further wherein the high-strength hardening shell is made of lightweight, high-strength materials such as carbon fiber or aluminum-magnesium alloy, and is treated for moisture-proof, salt spray-proof, and mildew-proof properties.

[0041] Example 3:

[0042] A multi-antenna fusion hardening device system, with the same technical content as any one of embodiments 1-2, further wherein the multi-band antenna array includes multiple antenna elements operating in different frequency bands, and the gain of each antenna element is 38dBi;

[0043] The omnidirectional antenna has a radiation pattern of 360°, while the directional antenna has a beamwidth of 60° to 120°.

[0044] Example 4:

[0045] A multi-antenna fusion and hardening device system, with the same technical content as any one of embodiments 1-3, further wherein the fused output signal output by the maximum ratio fusion processing module is as follows:

[0046] S combined =∑α i ×S i (1)

[0047] In the formula, αi S is the fusion coefficient; i The signal for antenna i; S combined To fuse the output signal.

[0048] Example 5:

[0049] A multi-antenna fusion hardening device system, with the same technical content as any one of embodiments 1-4, further wherein the fusion coefficient is... Let h be the channel gain of the i-th signal. i .

[0050] Example 6:

[0051] A multi-antenna fusion hardening device system, with the same technical content as any one of embodiments 1-5, further wherein the adaptive signal enhancement module adopts a low-noise amplifier with a noise figure of less than 1dB and integrates an adaptive gain control circuit to dynamically adjust the amplifier gain according to the input signal amplitude, so that the amplification factor satisfies the following formula:

[0052] 20×lg(V out / V in ) = G amp (2)

[0053] Among them, V in V is the amplitude of the input signal. out G is the desired output signal amplitude. amp V is the amplifier gain; out / V in This is the magnification factor.

[0054] Example 7:

[0055] A multi-antenna fusion hardening device system, with the same technical content as any one of embodiments 1-6, further wherein the dynamic range of the adaptive gain control circuit is not less than 30dB, and the total gain range of the amplifier is between 20 and 40dB.

[0056] Example 8:

[0057] A multi-antenna fusion hardening device system, with the same technical content as any one of embodiments 1-7, further comprising a radio frequency cable connecting the multi-band antenna array and the maximum ratio fusion processing module;

[0058] The radio frequency cable is equipped with electromagnetic shielding and insulation protection.

[0059] Example 9:

[0060] A wireless communication method based on the multi-antenna fusion hardened device system described in any one of Embodiments 1-8 includes the following steps:

[0061] S1. Receives radio frequency signals through multiple antenna units distributed at different locations inside the high-strength reinforced shell;

[0062] S2. The radio frequency signals received by the multi-antenna unit are introduced into the MRC fusion processing module, and the weighting coefficients of each signal are calculated according to the channel state information and then merged to obtain the fused output signal.

[0063] S3. The adaptive signal enhancement module dynamically adjusts the amplification factor according to the radio frequency signal and amplifies the fused output signal to output the optimal output signal.

[0064] Example 10:

[0065] A multi-antenna fusion ruggedized device system includes: a high-strength ruggedized shell, a multi-band antenna array, a maximum ratio combining (MRC) fusion processing module, and an adaptive signal enhancement module; the antenna elements in the antenna array are distributed at different positions inside the ruggedized shell to achieve omnidirectional signal reception; the MRC fusion processing module is used to perform optimal weighted combining of multiple antenna signals according to channel state information; the adaptive signal enhancement module adopts adaptive gain control technology to dynamically adjust the amplification factor so that the output signal is stable within the optimal dynamic range.

[0066] The high-strength reinforced shell is made of lightweight, high-strength materials such as carbon fiber or aluminum-magnesium alloy and is treated with three-proof coating to improve the equipment's environmental adaptability.

[0067] The multi-band antenna array includes multiple antenna elements operating in different frequency bands, with each antenna element having a gain of 38 dBi; the omnidirectional antenna has a radiation pattern of 360°, and the directional antenna has a beamwidth of 60° to 120°.

[0068] The MRC fusion processing module calculates the fusion coefficient α of each antenna signal using the following formula. i :

[0069] in, Let be the channel gain of the i-th signal.

[0070] The MRC fusion processing module multiplies each antenna signal by its corresponding fusion coefficient and then sums them to obtain the fused output signal S. combined :

[0071] S combined =∑α i ×S i .

[0072] The adaptive signal enhancement module uses a low-noise amplifier with a noise figure of less than 1dB and integrates an adaptive gain control circuit. It dynamically adjusts the amplifier gain based on the input signal amplitude to ensure the amplification factor satisfies the following formula:

[0073] 20×lg(V out / V in ) = G amp , where V in V is the amplitude of the input signal. out G is the desired output signal amplitude. amp This represents the amplifier gain.

[0074] The dynamic range of the adaptive gain control circuit is not less than 30dB, and the total gain of the amplifier is controlled between 20 and 40dB.

[0075] The system also includes a radio frequency cable for connecting the antenna array to the MRC fusion processing module; the radio frequency cable is provided with electromagnetic shielding and insulation protection.

[0076] Example 11:

[0077] A wireless communication method for a multi-antenna fusion-based hardened device system includes the following steps:

[0078] S1. Receive radio frequency signals through multiple antenna units distributed at different locations inside the reinforced outer shell;

[0079] S2. Introduce the multi-antenna signals into the MRC fusion processing module, calculate the weighting coefficients of each signal based on the channel state information, and merge them to obtain the fused signal;

[0080] S3. The fused signal is amplified by the adaptive signal enhancement module, and the adaptive gain control circuit dynamically adjusts the amplification factor according to the input signal level, outputting a stable optimal signal.

[0081] Example 12:

[0082] See Figure 1 A multi-antenna fusion hardening equipment system, the contents of which are as follows:

[0083] I. System Composition and Working Principle

[0084] This multi-antenna fusion hardening equipment system mainly consists of the following parts:

[0085] Reinforced outer shell: Made of high-strength materials, it can effectively resist the effects of harsh environments such as vibration and impact.

[0086] Multiple antenna units in different frequency bands are distributed in different locations inside the device to achieve omnidirectional signal reception and transmission.

[0087] Fusion processing module: Used to fuse signals received from multiple antenna elements and extract the optimal signal.

[0088] Signal enhancement module: Amplifies and optimizes the fused signal to improve communication quality.

[0089] Its basic working principle is as follows: after multiple antenna elements receive external signals, they transmit the signals to the fusion processing module for fusion and extraction to obtain the optimal signal. Then, the signal enhancement module amplifies and optimizes the signal to finally output a high-quality communication signal.

[0090] II. Key Technical Parameters

[0091] Antenna element:

[0092] Frequency band: Depending on communication requirements, it can cover commonly used frequency bands such as 300MHz to 6GHz;

[0093] Gain: The gain of a single antenna element needs to reach 3 to 8 dBi;

[0094] Radiation pattern: It needs to meet both omnidirectional and directional types. The beamwidth of a directional antenna is generally 60° to 120°.

[0095] Fusion processing algorithm:

[0096] The MRC algorithm is used to achieve optimal fusion by calculating the weighting coefficients of each antenna signal.

[0097] Signal enhancement:

[0098] A low-noise amplifier (LNA) should be used, with a noise figure of less than 1 dB.

[0099] The total gain is controlled between 20 and 40 dB to avoid signal distortion.

[0100] It supports automatic gain control (AGC) with a dynamic range greater than 30dB.

[0101] Key technical parameter design:

[0102] Antenna array parameter optimization

[0103] Shannon's formula shows that the reliable communication capacity of an antenna array, C, is the received signal-to-noise ratio (SNR) γ. r satisfy:

[0104] C = B × log2(1 + γ) r )

[0105] Where B represents the signal bandwidth. To achieve higher communication capacity in harsh environments, it is necessary to improve the received signal-to-noise ratio (SNR). Studies have shown that the gain G of an antenna element is positively correlated with the SNR:

[0106] γ r ∝G 2

[0107] Based on comprehensive simulation analysis and engineering practice, it was determined that setting the single antenna gain to 38dBi can achieve good coverage performance under space-constrained conditions. Furthermore, for different application scenarios, omnidirectional antennas (360° beamwidth) and directional antennas (60–120° beamwidth) are employed to flexibly meet the needs of omnidirectional coverage and long-distance communication.

[0108] See Figure 2

[0109] MRC fusion processing algorithm optimization:

[0110] The MRC fusion algorithm maximizes the received signal-to-noise ratio by optimally weighting and combining multiple diversity signals. The fusion coefficient α i The calculation formula is:

[0111]

[0112] in Let be the channel gain of the i-th signal. Multiply each signal by its corresponding fusion coefficient and then sum them to obtain the fused signal S. combined :

[0113] S combined =∑α i ×S i

[0114] Theoretical analysis shows that M-antenna MRC diversity fusion can achieve approximately M times the diversity gain, thus effectively improving reception performance. This system plans to use 4-antenna fusion, which is expected to achieve a gain improvement of over 6dB.

[0115] See Figure 3

[0116] Adaptive signal enhancement technology:

[0117] The system integrates a low-noise amplifier (LNA) with adaptive gain control (AGC). The AGC circuit can adjust the input signal level V based on the input signal level. in Real-time adjustment of amplifier gain G amp , output signal V out Stable within the optimal range, satisfying:

[0118] 20×lg(V out / V in ) = G amp

[0119] Meanwhile, to suppress amplifier noise, the noise figure of the LNA should be controlled below 1dB. Link simulation shows that controlling the total gain to 20-40dB and setting the AGC dynamic range to above 30dB can significantly reduce signal distortion.

[0120] III. Implementation Steps

[0121] 1. Determine the specifications of the antenna unit based on the equipment's operating environment and communication standard, including frequency band, gain, and directivity.

[0122] 2. Perform 3D modeling of the equipment, optimize the arrangement of antenna elements, and ensure electromagnetic compatibility design. Based on the modeling results, fabricate a reinforced outer shell and internal support structure.

[0123] 3. Integrate the antenna unit within a rugged housing and connect it to the fusion processing module using a low-loss RF cable. Pay attention to shielding and isolation during wiring.

[0124] 4. Build a fusion processing module, introduce multiple antenna signals, write a fusion algorithm program, perform fusion calculation on the real-time signals according to the maximum ratio fusion criterion, and output the optimal fused signal.

[0125] 5. The fused signal enters the signal enhancement module for amplification, and the AGC circuit is introduced to automatically adjust the signal level so that the output signal is always kept within the optimal range.

[0126] 6. Perform system integration testing. Conduct antenna testing in an anechoic environment to verify the gain and radiation pattern of each unit. Use a vector signal generator to simulate actual communication signals and test the fusion processing performance.

[0127] The multi-antenna fusion hardened equipment system proposed in this invention introduces several innovative technologies on the basis of traditional communication systems, effectively overcoming reliability bottlenecks in complex and harsh environments, and has broad application prospects. Future research can further explore algorithms such as multi-band broadband fusion and multi-standard adaptive processing, as well as intelligent signal enhancement technology based on artificial intelligence, continuously expanding the system performance boundaries and providing solid technical support for the extreme environment applications of wireless communication equipment.

Claims

1. A multi-antenna fusion hardening device system, characterized in that: It includes a high-strength reinforced shell, a multi-band antenna array, a maximum ratio merging and fusion processing module, and an adaptive signal enhancement module; The antenna elements in the multi-band antenna array are distributed in different positions inside the high-strength reinforced shell to achieve omnidirectional signal reception. The maximum ratio merging and fusion processing module performs optimal weighted merging of multiple antenna signals based on channel state information to obtain a fused output signal. The adaptive signal enhancement module uses adaptive gain control technology to dynamically adjust the amplification factor and amplify the fused output signal to output the optimal output signal.

2. The multi-antenna fusion hardening equipment system according to claim 1, characterized in that... The high-strength reinforced outer shell is made of lightweight, high-strength materials such as carbon fiber or aluminum-magnesium alloy, and is treated to prevent moisture, salt spray, and mold.

3. The multi-antenna fusion hardening equipment system according to claim 1, characterized in that... The multi-band antenna array includes multiple antenna elements operating in different frequency bands, and the gain of each antenna element is 38dBi. The omnidirectional antenna has a radiation pattern of 360°, while the directional antenna has a beamwidth of 60° to 120°.

4. The multi-antenna fusion hardening equipment system according to claim 1, characterized in that... The fused output signal output by the maximum ratio merging and fusion processing module is shown below: S combined =∑α i ×S i (1) In the formula, α i S is the fusion coefficient; i The signal for antenna i; S combined To fuse the output signal.

5. The multi-antenna fusion hardening equipment system according to claim 4, characterized in that... fusion coefficient Let h be the channel gain of the i-th signal. i .

6. The multi-antenna fusion hardening equipment system according to claim 1, characterized in that... The adaptive signal enhancement module employs a low-noise amplifier with a noise figure of less than 1dB and integrates an adaptive gain control circuit. It dynamically adjusts the amplifier gain based on the input signal amplitude to ensure the amplification factor satisfies the following formula: 20×lg(V out / V in )=G amp (2) Among them, V in V is the amplitude of the input signal. out G is the desired output signal amplitude. amp V is the amplifier gain; out / V in This is the magnification factor.

7. The multi-antenna fusion hardening equipment system according to claim 6, characterized in that... The dynamic range of the adaptive gain control circuit is not less than 30dB, and the total gain range of the amplifier is between 20 and 40dB.

8. The multi-antenna fusion hardening device system according to any one of claims 1-7, characterized in that... The system also includes a radio frequency cable connecting the multi-band antenna array and the maximum ratio merging and fusion processing module; The radio frequency cable is equipped with electromagnetic shielding and insulation protection.

9. A wireless communication method based on the multi-antenna fusion hardened device system according to any one of claims 1-8, characterized in that... This includes the following steps: S1. Receives radio frequency signals through multiple antenna units distributed at different locations inside the high-strength reinforced shell; S2. The radio frequency signals received by the multi-antenna unit are introduced into the MRC fusion processing module, and the weighting coefficients of each signal are calculated according to the channel state information and then merged to obtain the fused output signal. S3. The adaptive signal enhancement module dynamically adjusts the amplification factor according to the radio frequency signal and amplifies the fused output signal to output the optimal output signal.

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