Frequency hopping anti-interference processing device

Abstract

The utility model discloses a frequency hopping anti-interference processing device, which comprises an interference detection module, a channel set management module, a frequency hopping sequence module, a transmission module and a main controller, and is characterized in that the interference detection module at least comprises a plurality of electromagnetic sensors and is used for monitoring the surrounding electromagnetic environment in real time; the channel set management module is used for dividing available channels into a main set, a standby set and an unused set, and adjusting channel distribution in real time according to the interference condition detected by the interference detection module; the frequency hopping sequence module is used for generating a basic frequency hopping pattern; the transmission module comprises a power amplifier and an antenna and is used for signal amplification and wireless transmission. And the main controller is used for operating and managing all the modules. The technical scheme of the utility model improves the environmental adaptability of the frequency hopping strategy.

Description

Technical Field

[0001] This utility model relates to the field of communication technology, and in particular to a frequency hopping anti-interference processing device. Background Technology

[0002] Frequency hopping (FHH) is a commonly used anti-interference technique in wireless communication. It achieves spectrum spreading and anti-interference by hopping signal frequencies according to specific rules and speeds. FHH is a relatively mature technology and has been widely used in VHF / UHF equipment for a long time. It is also widely used in civilian communications. However, existing technologies have the following problems: they are limited by fixed frequency hopping patterns, making long-term use predictable; narrowband FHH has low spectrum utilization, making it difficult to adapt to the needs of modern broadband services; and in complex electromagnetic environments, system performance degrades sharply when interference covers multiple frequency points. Utility Model Content

[0003] The main purpose of this invention is to provide a frequency hopping anti-interference processing device, which aims to improve the environmental adaptability of frequency hopping strategies.

[0004] To achieve the above objectives, this utility model proposes a frequency hopping anti-interference processing device, comprising:

[0005] An interference detection module, comprising at least a plurality of electromagnetic sensors, for real-time monitoring of the surrounding electromagnetic environment;

[0006] The channel set management module is used to divide the available channels into a primary set, a backup set, and an unused set, and adjust the channel allocation in real time according to the interference detected by the interference detection module.

[0007] The frequency hopping sequence module is used to generate the basic frequency hopping pattern;

[0008] The transmission module, including a power amplifier and an antenna, is used to amplify and wirelessly transmit signals.

[0009] The main controller is used to run and manage all the above modules.

[0010] In one possible implementation, the frequency hopping anti-interference processing device further includes a main frequency switching module, which supports at least two different frequency bands and can switch frequency bands according to the interference detected by the interference detection module.

[0011] In one possible implementation, the main frequency switching module is equipped with a fuzzy logic controller for switching frequency bands according to different types of transmitted data.

[0012] In one possible implementation, the main frequency switching module can support at least the 2.4 GHz and 5.8 GHz frequency bands.

[0013] In one possible implementation, the channel set management module scans the entire frequency band and, based on the interference detection module, divides the center frequency points of the interference-free frequency band into a primary set, the edge frequency points into a backup set, and the frequency points at both ends into an unused set.

[0014] This utility model's technical solution achieves anti-interference performance through multi-module collaboration: the interference detection module scans the electromagnetic environment in real time; the channel set management module dynamically divides the spectrum and prioritizes the selection of interference-free center frequency bands; the main frequency switching module supports adaptive switching between 2.4GHz and 5.8GHz dual frequency bands, and intelligently selects the optimal frequency band based on data type using a fuzzy logic controller; the frequency hopping sequence module generates an anti-interception frequency hopping pattern; and the transmission module ensures stable signal transmission. Its advantages include: strong anti-interference capabilities, mitigating interference through both frequency band and channel levels; high reliability, with the primary set ensuring critical services and the backup set providing redundancy; intelligent adaptation, with fuzzy logic dynamically optimizing frequency band selection; efficient spectrum utilization, and refined hierarchical management of channel resources, making it suitable for complex electromagnetic scenarios such as military and industrial IoT applications. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the working process of an embodiment of the frequency hopping anti-interference processing device of this utility model.

[0017] Explanation of icon numbers:

[0018] 1. Main controller; 2. Interference detection module; 3. Channel set management module; 4. Main frequency switching module; 5. Frequency hopping sequence module; 6. Power amplifier; 7. Antenna.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0021] Reference Figure 1This invention proposes a frequency hopping anti-interference processing device, comprising an interference detection module 2, a channel set management module 3, a frequency hopping sequence module 5, a transmission module, and a main controller 1. The interference detection module 2 includes at least multiple electromagnetic sensors for real-time monitoring of the surrounding electromagnetic environment. The channel set management module 3 is used to divide available channels into a primary set, a backup set, and an unused set, and adjusts the channel allocation in real time according to the interference detected by the interference detection module 2. The frequency hopping sequence module 5 is used to generate a basic frequency hopping pattern. The transmission module includes a power amplifier 6 and an antenna 7 for signal amplification and wireless transmission. The main controller 1 is used to operate and manage all the above modules.

[0022] Understandably, the sensor nodes in the interference detection module 2 continuously monitor the surrounding electromagnetic environment and transmit data such as signal strength and bit error rate at each frequency point to the main controller 1 in real time. In this example, the electromagnetic sensor can be a triaxial magnetometer or a power detector, etc., which can collect data in the following dimensions in real time: the received signal strength of each channel, the duration of impulse noise, the harmonic distortion, the occupancy rate of the same frequency signal, the signal modulation method, the frequency of interference signal occurrence, etc. Through multi-node cooperation, all-round interference monitoring is achieved, solving the problem of blind spots in single-point detection.

[0023] The channel set management module 3 divides available frequency bands into primary, backup, and unused sets. Based on real-time interference data such as bit error rate and signal occupancy rate, it dynamically adjusts the channel allocation of each set to improve frequency utilization. The primary set consists of currently safe-to-use channels, prioritized for communication. The backup set consists of reserved channels, switched to when the primary set channels are interfered with. The unused set consists of temporarily unavailable or reserved channels. Based on the detection data from the interference detection module 2, if the primary frequency point is found to be interfered with, the channel set management module 3 immediately selects an interference-free frequency point from the backup frequency set for switching.

[0024] Frequency hopping sequence module 5 generates a basic frequency hopping pattern. The master and slave devices establish initial frequency synchronization through synchronization signals such as a specific handshake protocol. The transmission module amplifies and wirelessly transmits the signal. The main controller 1 is a microprocessor. All of the above are existing technologies and will not be described in further detail here.

[0025] Reference Figure 1 In one embodiment of the present invention, the frequency hopping anti-interference processing device further includes a main frequency switching module 4, which supports at least two different frequency bands and can switch frequency bands according to the interference detected by the interference detection module 2.

[0026] Understandably, the main frequency switching module 4 further enhances the device's anti-interference capability, enabling it not only to hop frequencies within a single frequency band but also to switch between different frequency bands to cope with more complex interference environments. It includes at least two different communication frequency bands, such as 2.4 GHz and 5 GHz, or UHF and VHF bands. Based on real-time data from the interference detection module 2, it determines whether switching between different frequency bands is necessary. Electromagnetic sensors monitor the interference situation of the current frequency band to see if a certain band is completely blocked. The main frequency switching module 4 analyzes the availability of backup frequency bands, such as signal quality and noise level. If the current frequency band is severely interfered with, it switches to another cleaner frequency band and notifies the frequency hopping sequence module 5 to generate a new frequency hopping pattern.

[0027] Reference Figure 1 In one embodiment of this utility model, the main frequency switching module 4 is equipped with a fuzzy logic controller for switching frequency bands according to different types of transmitted data.

[0028] Understandably, fuzzy logic is a mathematical method for handling uncertainty and fuzziness, suitable for complex and nonlinear decision-making scenarios. Fuzzy logic controllers enable intelligent selection of the optimal frequency band based on the type of transmitted data, such as voice, video, and control commands, rather than simply switching based on interference detection. High-bandwidth services like voice / video prioritize high-frequency bands, while text / control signals prioritize low-frequency bands, improving communication speeds in complex environments while reducing the probability of co-channel interference.

[0029] Reference Figure 1 In one embodiment of this utility model, the main frequency switching module 4 can support at least the 2.4GHz and 5.8GHz frequency bands.

[0030] Understandably, these two frequency bands are commonly used in wireless communication, with different physical characteristics and applicable scenarios. 2.4GHz is suitable for long-distance, low-bandwidth requirements, while 5.8GHz is suitable for high-speed, low-interference scenarios. Most commercial and military wireless devices support these two frequency bands, facilitating integration. Traditional devices often rely on a single frequency band, such as 2.4GHz, which presents a performance contradiction between long-distance penetration and high-bandwidth transmission. 2.4GHz has strong penetration but is susceptible to interference from devices such as Wi-Fi, while 5.8GHz has high bandwidth but weak diffraction capability. The main frequency switching module 4 dynamically selects the frequency band through a fuzzy logic controller, solving the trade-off between penetration and bandwidth for a single frequency band.

[0031] Reference Figure 1 In one embodiment of this utility model, the channel set management module 3 scans the entire frequency band and, according to the interference detection module 2, divides the center frequency point of the interference-free frequency band into the primary set, the edge frequency point into the backup set, and the two end frequency points into the unused set.

[0032] Understandably, the primary set is the center frequency of the interference-free band, which is the continuous frequency band with the best interference detection results. It has the highest signal-to-noise ratio, the most stable signal, and the lowest bit error rate, and is given priority for critical data transmission such as control commands and high-definition video. The backup set is the edge frequency of the interference-free band, which is close to the primary set but has slightly lower quality, with a moderate signal-to-noise ratio. It may have slight fluctuations and needs to be dynamically monitored. When the primary set is congested or interfered with, it is switched to this set. The unused set is the interference frequency at both ends of the band, where interference may be more severe and the signal-to-noise ratio is lower.

[0033] This utility model's technical solution achieves anti-interference performance through multi-module collaboration: the interference detection module 2 scans the electromagnetic environment in real time; the channel set management module 3 dynamically divides the spectrum, prioritizing the selection of interference-free center frequency bands; the main frequency switching module 4 supports adaptive switching between 2.4GHz and 5.8GHz dual frequency bands, and intelligently selects the optimal frequency band based on data type using a fuzzy logic controller; the frequency hopping sequence module 5 generates an anti-interception frequency hopping pattern; and the transmission module ensures stable signal transmission. Its advantages include: strong anti-interference capabilities, mitigating interference through both frequency band and channel levels; high reliability, with the main set ensuring critical services and the backup set providing redundancy; intelligent adaptation, with fuzzy logic dynamically optimizing frequency band selection; efficient spectrum utilization, and refined hierarchical management of channel resources, making it suitable for complex electromagnetic scenarios such as military and industrial IoT applications.

[0034] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0035] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A frequency hopping anti-interference processing device, characterized in that, include: An interference detection module, comprising at least a plurality of electromagnetic sensors, for real-time monitoring of the surrounding electromagnetic environment; The channel set management module is used to divide the available channels into a primary set, a backup set, and an unused set, and adjust the channel allocation in real time according to the interference detected by the interference detection module. The frequency hopping sequence module is used to generate the basic frequency hopping pattern; The transmission module, including a power amplifier and an antenna, is used to amplify and wirelessly transmit signals. The main controller is used to run and manage all the above modules.

2. The frequency hopping anti-interference processing device according to claim 1, characterized in that, The frequency hopping anti-interference processing device also includes a main frequency switching module, which supports at least two different frequency bands and can switch frequency bands according to the interference detected by the interference detection module.

3. The frequency hopping anti-interference processing device according to claim 2, characterized in that, The main frequency switching module is equipped with a fuzzy logic controller, which is used to switch frequency bands according to different types of transmitted data.

4. The frequency hopping anti-interference processing device according to claim 2, characterized in that, The main frequency switching module can support at least the 2.4GHz and 5.8GHz frequency bands.

5. The frequency hopping anti-interference processing device according to claim 1, characterized in that, The channel set management module scans the entire frequency band and, based on the interference detection module, divides the center frequency points of the interference-free frequency band into the primary set, the edge frequency points into the backup set, and the frequency points at both ends into the unused set.

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