Unmanned aerial vehicle countering system and software radio module

Abstract

The invention relates to an unmanned aerial vehicle countering system and a software radio module. The software radio module comprises a function module and an interface assembly. The functional module is electrically connected with the interface assembly, and the interface assembly is also used for being detachably and electrically connected with a control end and / or interface assemblies of other software radio modules. The interface assembly is used for receiving control information of the control end. The function module is used for generating a radio frequency signal of a corresponding frequency band based on the control information. According to the technical scheme, the flexibility of system configuration is improved.

Description

Technical Field

[0001] The present invention relates to the field of UAV countermeasures, and particularly to a UAV countermeasure system and a software radio module. Background Art

[0002] UAV countermeasure is a key technology to address low-altitude security threats and is indispensable in the fields of military, public security, privacy protection, etc. With the popularization of UAVs and the increasing risk of abuse, efficient and legal countermeasure means will become an important part of the modern security system. However, the current countermeasure signals are relatively fixed and single, and the configuration flexibility is poor. Moreover, there are various types of UAVs, complex communication protocols, non-unified frequency bands, and the anti-interference algorithms of the protocols are continuously upgraded and optimized, making the interference effect of the UAV countermeasure system on new UAVs deteriorate. Summary of the Invention

[0003] The technical problem to be solved in the embodiments of the present invention is to provide a UAV countermeasure system and a software radio module in view of the above-mentioned defect of poor configuration flexibility existing in the traditional technology.

[0004] On the one hand, the embodiments of the present invention propose a software radio module, which includes a functional module and an interface component; the functional module is electrically connected to the interface component, and the interface component is also used for detachably electrically connecting to the control end and / or the interface component of other software radio modules;

[0005] The interface component is used to receive the control information of the control end;

[0006] The functional module is used to generate a radio frequency signal of a corresponding frequency band based on the control information.

[0007] Optionally, the interface component includes a first interface, one end of the first interface is used for detachably electrically connecting to one of the first connection ends of the control end, and the other end of the first interface is electrically connected to the functional module;

[0008] The first interface is used to receive the control information of the control end and send the control information to the functional module.

[0009] Optionally, the control information includes an enable signal; the functional module includes a power amplification unit, and the power amplification unit is electrically connected to the first interface;

[0010] The power amplification unit is used to output the radio frequency signal when receiving the enable signal.

[0011] Optionally, the functional module further includes a signal processing unit, which is electrically connected to the power amplification unit and the first interface respectively. The signal processing unit and / or the power amplification unit are used to send status information to the control end through the first interface.

[0012] Optionally, the interface component includes a second interface and a third interface;

[0013] One end of the second interface is used to be detachably electrically connected to the second connection end of the control end or the third interface of the previous software radio module, and the other end of the second interface is electrically connected to the functional module; the second interface is used to directly receive or receive the control information of the control end through the previous software radio module, and send the control information to the functional module;

[0014] One end of the third interface is electrically connected to the functional module, and the other end of the third interface is used to be detachably electrically connected to or suspended from the second interface of the subsequent software radio module; the third interface is used to send the control information of the control end to the subsequent software radio module.

[0015] Optionally, the control information includes an enable signal; the functional module includes a signal processing unit and a power amplification unit;

[0016] The signal processing unit is electrically connected to the second interface, the third interface and the power amplification unit respectively, and is used to generate an initial signal when receiving the enable signal;

[0017] The power amplification unit is electrically connected to the signal processing unit, and is used to perform power amplification on the initial signal to generate the radio frequency signal when receiving the enable signal.

[0018] Optionally, the signal processing unit includes a processor and a transceiver;

[0019] The processor is electrically connected to the second interface and the third interface respectively, and is used to generate a source signal when receiving the enable signal;

[0020] The transceiver is electrically connected to the processor and the power amplification unit respectively, and is used to modulate the source signal into an initial signal when receiving the enable signal.

[0021] Optionally, the signal processing unit is further used to send the status information of the present software radio module to the control end through the second interface, and send the status information of other software radio modules received through the third interface to the control end through the second interface.

[0022] Optionally, the software radio module further includes a first circuit board and a second circuit board. The functional module includes a signal processing unit disposed on the first circuit board and a power amplification unit disposed on the second circuit board. The first circuit board and the second circuit board are electrically connected through a board-to-board connector; the signal processing unit and the power amplification unit are respectively electrically connected to the board-to-board connector.

[0023] Optionally, the interface component includes a power supply interface and / or a radio frequency output interface; the power supply interface is electrically connected to the functional module, and is used for inputting a power supply voltage and supplying power to the functional module;

[0024] The radio frequency output interface is electrically connected to the power amplification unit, and is used for outputting the radio frequency signal generated by the power amplification unit.

[0025] Optionally, the power supply interface is disposed on the second circuit board; the power supply interface is electrically connected to the power amplification unit, and also supplies power to the devices on the first circuit board through the board-to-board connector.

[0026] On the other hand, an unmanned aerial vehicle countermeasure system is also proposed. The unmanned aerial vehicle countermeasure system includes the software radio module described above.

[0027] Optionally, the unmanned aerial vehicle countermeasure system further includes a control terminal. The control terminal includes at least one first connection terminal; the number of the software radio modules is one or more, and the interface component includes a first interface;

[0028] The first interfaces of the software radio modules are detachably and electrically connected to the first connection terminals in one-to-one correspondence.

[0029] Optionally, the unmanned aerial vehicle countermeasure system further includes a control terminal. The control terminal includes a second connection terminal; the number of the software radio modules is multiple, and the interface component includes a second interface and a third interface;

[0030] The second interface of the first software radio module is detachably electrically connected to the second connection terminal of the control terminal. The third interface of the last software radio module is left floating. The second interfaces of the intermediate software radio modules are respectively detachably electrically connected to the third interfaces of the previous software radio modules of the software radio modules. The third interfaces of the intermediate software radio modules are respectively detachably electrically connected to the second interfaces of the subsequent software radio modules of the software radio modules. Among them, the intermediate software radio modules are the other software radio modules except the first software radio module and the last software radio module among the multiple software radio modules.

[0031] In the technical solution provided by the embodiments of the present invention, the software radio module can be detachably and electrically connected to the control terminal and / or the interface components of other software radio modules through its interface components. Therefore, the control terminal can control multiple software radio modules simultaneously. For example, when applied to an unmanned aerial vehicle (UAV) countermeasure system, the number of software radio modules can be increased or decreased according to actual needs (such as the type of UAV), without major modifications to the wireless communication system. In addition, since each software radio module can generate radio frequency signals of corresponding frequency bands based on control information, in the UAV countermeasure application, the constructed UAV countermeasure system can simultaneously transmit multiple interference signals of different frequency bands to interfere with the communication of different UAVs. Therefore, this technical solution improves the flexibility of system configuration and is more suitable for the ever-changing UAV countermeasure scenarios. Description of the Drawings

[0032] To more clearly illustrate the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. In the drawings,

[0033] Figure 1 is the logical structure diagram of the software radio module in an embodiment of the present invention;

[0034] Figure 2 is the logical structure diagram of the software radio module in an embodiment of the present invention;

[0035] Figure 3 is the logical structure diagram of the software radio module in an embodiment of the present invention;

[0036] Figure 4 is the logical structure diagram of the software radio module in an embodiment of the present invention;

[0037] Figure 5 is the logical structure diagram of the software radio module in an embodiment of the present invention;

[0038] Figure 6 is the logical structure diagram of the software radio module in an embodiment of the present invention;

[0039] Figure 7 is the logical structure diagram of the software radio module in an embodiment of the present invention;

[0040] Figure 8 is the layout diagram of the modules of the software radio module in an embodiment of the present invention;

[0041] Figure 9 is the logical structure diagram of the software radio module in an embodiment of the present invention;

[0042] Figure 10 It is the logic structure diagram of the UAV countermeasure system in an embodiment of the present invention;

[0043] Figure 11 It is the logic structure diagram of the UAV countermeasure system in an embodiment of the present invention.

[0044] Label description:

[0045] 1: Software radio module; 2: Control terminal;

[0046] 11: Functional module; 12: Interface component; 13: First circuit board; 14: Second circuit board; 15: Board-to-board connector;

[0047] 111: Signal processing unit; 112: Power amplification unit; 113: Power supply circuit;

[0048] 121: First interface; 122: Second interface; 123: Third interface; 124: Power interface; 125: RF output interface;

[0049] 151: Digital board-to-board connector; 152: RF board-to-board connector;

[0050] 1111: Processor; 1112: Transceiver. Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0052] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated. "Connection" can be a direct connection, or an indirect connection through an intermediate medium. It can be the communication inside two components or the interaction relationship between two components. It can also be the direct communication between two circuit modules or the communication through other modules. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0053] Figure 1It is the logical structure diagram of the software radio module in an embodiment of the present invention. The software radio module 1 of this embodiment includes a function module 11 and an interface component 12. The function module 11 is electrically connected to the interface component 12, and the interface component 12 is also used for detachably electrically connecting to the interface component of a control terminal (not shown) and / or other software radio modules (not shown). The interface component 12 is used to receive the control information of the control terminal. The function module 11 is used to generate radio frequency signals of corresponding frequency bands based on the control information.

[0054] In this embodiment, the interface component 12 of the software radio module 1 can be electrically connected to both the control terminal and the interface component of other software radio modules. However, the actual electrical connection relationship of the interface component 12 can vary according to the application scenario. That is, the interface component 12 is also used for detachably electrically connecting to the interface component of the control terminal and / or other software radio modules, which means that in different application scenarios, the external electrical connection method of the interface component 12 of the software radio module 1 can be different. For example, the software radio module 1 can be detachably electrically connected to the control terminal through its interface component 12, or the software radio module 1 can also be detachably electrically connected to the interface component of other software radio modules, or it can also be that the software radio module 1 is detachably electrically connected to the interface component of other software radio modules and the control terminal respectively through the interface component 12. Therefore, based on the above setting method of the interface component 12 in this embodiment, the software radio module 1 can be flexibly configured to be applicable to different application scenarios.

[0055] Among them, the control terminal is, for example, a single-chip microcomputer, a CPU, etc. The function module 11 can, for example, generate radio frequency signals of corresponding frequency bands based on control information. The control information is, for example, control signals for turning on and off to control the start or stop of the operation of the function module 11. The function module 11 adopts, for example, a software-defined radio architecture, so that relevant functions can be realized according to the actual application scenarios. After receiving the control signal for turning on, the function module 11 can generate radio frequency signals of corresponding frequency bands that can realize specific functions. After the radio frequency signals are input into the antenna, they can be directly transmitted. If applied to the field of unmanned aerial vehicle (UAV) countermeasure, after receiving the control signal for turning on, the function module 11 can generate UAV interference codes (such as the bandwidth, frequency band, data length, etc. of the interference codes are the same as those of UAV communication signals, but the content is noise), and after modulating and amplifying the UAV interference codes, etc., obtain UAV interference signals and transmit them through the antenna. If applied to the field of frequency interference, after receiving the control signal for turning on, the function module 11 can generate frequency interference codes (for example, interference codes with the same format as 5G communication signals and noise content generated for 5G communication signals), and after modulating and amplifying the frequency interference codes, etc., form frequency interference signals and transmit them through the antenna to interfere with illegal wireless communication devices. It should be noted that the specific way for the function module 11 to generate radio frequency signals can be: after receiving the control information, the function module 11 directly generates corresponding source signals in real time based on the configured algorithm, and then modulates, power-amplifies, etc. the source signals to output radio frequency signals. Or it can also be: various types of source signals (such as UAV interference codes for various models of UAVs) are pre-stored in the memory. After receiving the control information, the function module 11 reads the corresponding source signals (such as UAV interference codes for a certain model of UAV) from the memory, and then modulates, power-amplifies, etc. the source signals to output radio frequency signals.

[0056] In addition, the above-mentioned control information is not limited to control signals for turning on and off. For example, it can also be source signals (such as UAV interference codes). When the function module 11 receives the source signals, it modulates, power-amplifies, etc. the source signals to output radio frequency signals. These are all within the protection scope of this application.

[0057] In addition, the frequency band of the radio frequency signal can be configured according to actual needs. Still taking the application of the UAV countermeasure system as an example, the control terminal can configure the frequency band of the UAV interference signals generated by the software-defined radio module 1 according to actual needs to adapt to the characteristics of the continuous update and iteration of UAV models. Therefore, the technical solution of this embodiment improves the flexibility of system configuration.

[0058] In practical applications, multiple software radio modules 1 provided by this embodiment can be used to form a system. Since the interface components 12 of each software radio module 1 have the above characteristics, multiple software radio modules 1 can be cascaded to build a wireless communication system, such as a frequency interference system (at this time, each software radio module 1 can implement the function of frequency interference), a drone countermeasure system (at this time, each software radio module 1 can implement the function of drone countermeasure), etc. In this wireless communication system, all software radio modules 1 can simultaneously transmit multiple radio frequency signals. For example, in a drone countermeasure system, different software radio modules 1 can simultaneously transmit interference signals of different frequency bands (the interference signal is one of the radio frequency signals) to perform communication interference on different drones, thereby improving the countermeasure effect and efficiency. In addition, the number of software radio modules 1 can be increased or decreased according to actual needs without major modifications to the wireless communication system. For example, if the types of drones to be countered increase, the number of software radio modules 1 can be increased to counter the newly added drones.

[0059] Therefore, by optimizing the connection method of the interface component 12 and the interaction method between the function module 11 and the control end, this embodiment can be equipped with different numbers of software radio modules 1 according to the actual scenario, and by configuring each software radio module 1, different frequency band interference signals can be simultaneously transmitted, so that it can be applied to a variety of application scenarios, improving the flexibility of system configuration and being more suitable for the constantly changing drone countermeasure scenarios.

[0060] Further, as Figure 1 shown, the interface component 12 is also used to send the status information of the software radio module 1 to the control end. The status information includes, for example, identity information, power-on completion information, configuration completion information, upgrade completion information, etc. The technical solution of this embodiment can not only enable the control end to control the function module 11 in the software radio module 1, but also enable the control end to timely know the status of the software radio module 1, so as to facilitate the control end to perform unified and orderly control of the entire system, thereby ensuring reliable operation.

[0061] Figure 2It is the logical structure diagram of the software radio module in an embodiment of the present invention. The software radio module 1 in this embodiment includes a functionally connected functional module 11 and an interface component 12. Among them, the interface component 12 includes a first interface 121. The first interface 121 is used to receive the control information from the control terminal and send the control information to the functional module 11. The first interface 121 is, for example, an I / O control interface (such as selecting a connector of the GH series), an Ethernet interface, or the first interface 121 can also be other types of interfaces (such as other interfaces similar to the connector of the GH series and the Ethernet interface), as long as it can output high and low levels. One end of the first interface 121 is detachably electrically connected to one of the first connection ends of the control terminal (not shown), and the other end of the first interface 121 is electrically connected to the functional module 11.

[0062] In this embodiment, the control terminal can be provided with multiple first connection ends. Since the first interface 121 can be detachably electrically connected to one of the first connection ends of the control terminal, the control terminal can be respectively connected to multiple software radio modules 1 one-to-one through its multiple first connection ends. This connection method is a star cascade method. In this embodiment, the control terminal can send control information to each software radio module 1 through the first interface 121 to control all the software radio modules 1. This star cascade method has a lower cost and a simple operation mode, so it has the advantage of faster response and is suitable for application scenarios that pay more attention to the response speed.

[0063] Figure 3 It is the logical structure diagram of the software radio module in an embodiment of the present invention. The software radio module 1 in this embodiment is Figure 2 a specific solution in the shown embodiment. In this embodiment, the main function of the software radio module 1 includes amplifying and outputting the radio frequency signal. Among them, the control information includes an enable signal. The functional module 11 includes a power amplification unit 112, which is electrically connected to the first interface 121, and the power amplification unit 112 is used to output a radio frequency signal when receiving the enable signal.

[0064] In this embodiment, the control terminal can control the software radio module 1 to turn on or off. The specific control method is, for example: an enable signal can be sent to the software radio module 1 that needs to work according to actual requirements, and no enable signal needs to be sent to the software radio module 1 that does not need to work. At this time, the enable signal can be any type of signal. Or, it can also be: an enable signal is sent to the software radio module 1 that needs to work, and a shutdown signal is sent to the radio module 1 that does not need to work (for example: the same pin is used for both the enable signal and the shutdown signal. When the high level is transmitted on this pin, it is considered that the enable signal is transmitted, and when the low level is on this pin, it is considered that the shutdown signal is transmitted). In this embodiment, since the functional module 11 includes a power amplification unit 112, when an enable signal is received through the first interface 121, the software radio module 1 is equivalent to a power amplifier, and it can access any input signal (such as a radio frequency signal with a relatively low power corresponding to a frequency interference code, a radio frequency signal with a relatively low power corresponding to a drone interference code), and amplify the input signal to obtain a radio frequency signal, which is then transmitted through the antenna, so that it can be applied to various application scenarios that require a power amplifier.

[0065] Therefore, in this embodiment, the control terminal controls each software radio module 1 through the enable signal, which is convenient to operate, has a fast response speed, and can save unnecessary power consumption to extend the service life of the software radio module 1. In addition, since the software radio module 1 is equivalent to a power amplifier in this embodiment, it can be applied to a variety of application scenarios.

[0066] Furthermore, the functional module 11 further includes other devices. Such as Figure 3As shown in the figure, in this embodiment, the functional module 11 further includes a signal processing unit 111, which is electrically connected to the power amplification unit 112 and the first interface 121 respectively. The signal processing unit 111 and / or the power amplification unit 112 is used to send status information to the control end through the first interface 121. The status information may be a signal generated according to the operating status of the software radio module 1. For example, it is the power-on completion information of the software radio module 1 (including the power amplification unit 112 and the signal processing unit 111). The signal processing unit 111 can, for example, first generate a UAV interference code for interfering with UAVs in a certain frequency band, generate a corresponding initial signal after modulation and other processes, and then obtain a UAV interference signal in the corresponding frequency band after being amplified by the power amplification unit 112. Moreover, different software radio modules 1 can generate UAV interference signals in different frequency bands. Therefore, by adopting multiple software radio modules 1, different types of UAVs can be interfered with simultaneously. In this embodiment, when the power supply is connected to the functional module 11, and after the power amplification unit 112 and the signal processing unit 111 are both powered on, the signal processing unit 111 and / or the power amplification unit 112 can send the power-on completion information (a signal for indicating power-on completion) to the first interface 121, and the first interface 121 can then transmit this power-on completion information to the control end. Since the power-on completion time of the signal processing unit 111 is generally later than that of the power amplification unit 112, the signal processing unit 111 can send the power-on completion information after it is powered on. Or it can also be that only the power amplification unit 112 sends the power-on completion information. Of course, the power-on completion information can also be sent separately by the signal processing unit 111 and the power amplification unit 112 (that is, the power amplification unit 112 sends the power-on completion information indicating that it has completed power-on after it is powered on, and the signal processing unit 111 also sends the power-on completion information indicating that it has completed power-on after it is powered on), as long as the information that both have completed power-on can be conveyed. In this embodiment, the power-on completion information can be a high-level signal. In this embodiment, by sending status information to the control end, the software radio module 1 can enable the control end to know the real-time status of the software radio module 1 in a timely manner. Finally, it should also be noted that according to actual application requirements, the status information sent by the software radio module 1 to the control end can also be other types of status information, such as information representing whether the operation is normal, and no specific limitation will be made here.

[0067] Further, in an alternative embodiment, the power amplification unit 112 is further configured to send operation indication information to the control end through the first interface 121. The operation indication information is, for example, an enable success message, which represents that the power amplification unit 112 has completed a normal startup. In this embodiment, after the power-on of the power amplification unit 112 is completed, the control end can send an enable signal to the power amplification unit 112 through the first interface 121. After receiving the enable signal, the power amplification unit 112 can be normally started, and after startup, it sends the enable success message to the control end through the first interface 121, so that the control end can timely know the operation result of the power amplification unit 112. In this embodiment, the signal processing unit 111 can monitor the pin of the first interface 121 for receiving the enable signal, so as to identify whether the control end has sent an enable signal. Therefore, the control end does not need to additionally send an enable signal to the signal processing unit 111. For example, assuming that the enable signal is a high level, when the signal processing unit 111 monitors that the pin of the first interface 121 for receiving the enable signal is at a high level, it is determined that the control end has sent an enable signal, and then the signal processing unit 111 can complete the enabling by itself. It can be understood that in other embodiments, in order to enable the signal processing unit 111, the power amplification unit 112 may also send the enable signal to the signal processing unit 111, or the control end may additionally send an enable signal to the signal processing unit 111 through the first interface 121. Finally, it should also be noted that the operation indication information sent to the control end may also be other operation indication information other than the enable success message, or the operation indication information of other devices other than the power amplification unit.

[0068] Based on Figure 3The software radio module 1 of the illustrated embodiment can be applied to application scenarios with relatively fast response speeds. The working principle of the entire software radio module 1 is as follows: After the software radio module 1 is powered on, the power amplification unit 112 and the signal processing unit 111 are powered on in sequence. After the power-on is completed, the signal processing unit 111 and / or the power amplification unit 112 send the power-on completion information to the control terminal through the first interface 121. Next, the control terminal will send an enable signal. After the power amplification unit 112 receives the enable signal through the first interface 121, it can start normal operation and send the enable success information to the control terminal through the first interface 121. At the same time, the signal processing unit 111 can also complete the enabling by itself after detecting that the control terminal sends an enable signal. After that, the power amplification unit 112 can amplify the initial signal transmitted by the signal processing unit 111 to obtain a radio frequency signal and send it through the antenna. At the same time, the control terminal can control different software radio modules 1 to work, so as to be able to send signals of different frequency bands. For example, it can interfere with different types of unmanned aerial vehicles simultaneously. In this embodiment, the control terminal can turn on the software radio module 1 of the corresponding frequency band through the enable signal, so as to be applicable to different unmanned aerial vehicle countermeasure scenarios, and the control method is simple and convenient, enabling each software radio module 1 to be turned on and work as soon as possible, thus having a relatively fast response speed.

[0069] Figure 4 It is the logical structure diagram of the software radio module in an embodiment of the present invention. The software radio module 1 of this embodiment includes a function module 11 and an interface component 12 that are electrically connected. The interface component 12 includes a second interface 122 and a third interface 123. The second interface 122 and the third interface 123 are, for example, RS422 interfaces, RS485 interfaces, CAN bus interfaces, RS232 interfaces, or other interfaces similar in function to these interfaces (such as other types of interfaces that can support serial communication). One end of the second interface 122 can be detachably electrically connected to the second connection end of the control terminal (not shown) or the third interface of the previous software radio module (not shown). The other end of the second interface 122 is electrically connected to the function module 11, and is used to directly receive or receive the control information of the control terminal through the previous software radio module and send the control information to the function module 11. One end of the third interface 123 is electrically connected to the function module 11, and the other end of the third interface 123 can be detachably electrically connected to the second interface of the subsequent software radio module (not shown) or left floating, and is used to send the control information of the control terminal to the subsequent software radio module (not shown).

[0070] In this embodiment, one end of the second interface 122 of the software radio module 1 supports two connection methods (one is detachably electrically connected to the second connection end of the control terminal, and the other is detachably electrically connected to the third interface of the previous software radio module). Which connection method is specifically adopted depends on the position of the software radio module 1 in the cascaded system (that is, a system including a control terminal and multiple software radio modules 1). Among them, the previous software radio module will receive the control information from the control terminal earlier than the software radio module 1. The subsequent software radio module will receive the control information from the control terminal later than the software radio module 1. If the software radio module 1 is the first module in the cascaded system, one end of the second interface 122 is detachably electrically connected to the second connection end of the control terminal, and the other end of the third interface 123 is detachably electrically connected to the second interface 122 of the subsequent software radio module. If the software radio module 1 is a module in the middle position of the cascaded system, one end of the second interface 122 is detachably electrically connected to the third interface 123 of the previous software radio module, and the other end of the third interface 123 is detachably electrically connected to the second interface 122 of the subsequent software radio module. If the software radio module is the last module in the cascaded system, one end of the second interface 122 is detachably electrically connected to the third interface 123 of the previous software radio module, and the other end of the third interface 123 is left floating.

[0071] When it is necessary to control the software radio module 1, the control terminal generates and sends the control information of the software radio module 1. If the software radio module 1 is the first module, the second interface 122 can directly receive the control information from the control terminal and send it to the function module 11 to control the function module 11. If the software radio module 1 is not the first module, each of the previous software radio modules will sequentially forward the control information from the control terminal backward until the control information reaches the second interface 122 of the software radio module 1, and then the second interface 122 sends the control information to the function module 11. In this embodiment, since the interface component 12 of the software radio module 1 includes the second interface 122 and the third interface 123, multiple software radio modules 1 can be sequentially connected end to end through their respective second interfaces 122 and third interfaces 123, and the second interface 122 of the first software radio module 1 is electrically connected to the second connection end of the control terminal. Such a cascading method can be called a chain cascading method. In this chain cascading method, since the control terminal only needs one output terminal, more types and more complex data can be transmitted, so that the control of each software radio module 1 by the control terminal can be more intelligent.

[0072] Figure 5 is the logical structure diagram of the software radio module in an embodiment of the present invention. The software radio module 1 in this embodiment isFigure 4 A specific solution in the illustrated embodiment. Among them, the control information includes an enable signal. The functional module 11 includes a signal processing unit 111 and a power amplification unit 112. Among them, the signal processing unit 111 is electrically connected to the second interface 122, the third interface 123, and the power amplification unit 112 respectively, and is used to generate an initial signal when receiving the enable signal. The power amplification unit 112 is electrically connected to the signal processing unit 111, and is used to perform power amplification on the initial signal to generate a radio frequency signal when receiving the enable signal.

[0073] In this embodiment, the control terminal can control the software radio module 1 to be turned on or off. The specific control method is, for example: an enable signal can be sent to the software radio module 1 that needs to work according to actual requirements, and no enable signal needs to be sent to the software radio module 1 that does not need to work. At this time, the enable signal can be any type of signal. Or, it can also be: an enable signal is sent to the software radio module 1 that needs to work, and a shutdown signal is sent to the software radio module 1 that does not need to work (for example: both the enable signal and the shutdown signal use the same pin. When the high level is transmitted on this pin, it is considered that the enable signal is transmitted. When the pin is at a low level, it is considered that the shutdown signal is transmitted). The initial signal, for example, is a radio frequency signal with relatively low power. Specifically, it can be a radio frequency signal obtained by modulating or modulating and up-converting the drone interference code generated or called for a certain frequency band of drones. And different software radio modules 1 can output interference signals of different frequency bands. Therefore, by adopting multiple software radio modules 1, drones of different types can be interfered with simultaneously. In addition, in other embodiments, it can also be that the control terminal generates the drone interference code of the corresponding frequency band, sends the drone interference code to the corresponding software radio module 1, and the software radio module 1 can perform processing such as modulation on the drone interference code to obtain the above initial signal.

[0074] Moreover, the control terminal can enable and control the signal processing unit 111 and the power amplification unit 112 in the software radio module 1 simultaneously or successively. The unenabled signal processing unit 111 and power amplification unit 112 can enter the low power consumption state, for example, thereby further extending the service life of the software radio module 1.

[0075] Figure 6 is the logical structure diagram of the software radio module in an embodiment of the present invention. The software radio module 1 of this embodiment is Figure 5A further specific solution in the illustrated embodiment. In this embodiment, the signal processing unit 111 further includes a processor 1111 and a transceiver 1112. The processor 1111 is, for example, an FPGA. Among them, the processor 1111 is electrically connected to the second interface 122 and the third interface 123 respectively, and is used to generate a source signal when receiving an enable signal. The transceiver 1112 is electrically connected to the processor 1111 and the power amplification unit 112 respectively, and is used to modulate the source signal into an initial signal when receiving an enable signal. In this embodiment, the processor 1111 can generate a corresponding source signal (such as a drone interference code), and modulate and convert it into an initial signal through the transceiver 1112. For example, the source signal is modulated onto a carrier wave of a specific frequency band, and the initial signal is power-amplified by the power amplification unit 112, and a corresponding radio frequency signal is output. It should be noted that in other embodiments, in addition to modulation, the transceiver 1112 can also perform up-conversion on the modulated signal, and the up-converted signal is the initial signal. These are all within the protection scope of this application. Regarding the principles of modulation, up-conversion, etc., reference can be made to the relevant technologies of wireless communication, which will not be elaborated here.

[0076] Furthermore, the control information further includes a parameter control signal, and the parameter control signal includes, for example, a configuration signal for configuring the frequency band. Note that the specific form of the configuration signal is not limited here as long as the signal processing unit 111 can recognize it. The signal processing unit 111 is also used to perform parameter configuration according to the parameter control signal. In this embodiment, the control terminal can configure the parameters of the signal processing unit 111 in each software radio module 1 to change the parameters of the processor 1111, and the processors 1111 in different software radio modules 1 can be set to different parameters correspondingly. For example, different software radio modules 1 correspond to different frequency bands. In addition, the control terminal can also control parameters such as bandwidth and signal content. For example: if a new drone is found in the environment, the software radio module 1 can be configured to generate a drone interference signal adapted to the frequency band, bandwidth, etc. of the new drone, so as to ensure that there is also an interference signal for the new drone. Or, if there are multiple types of drones in the current environment, the control terminal can control multiple software radio modules 1 to generate drone interference signals corresponding to each drone respectively, so as to ensure that all types of drones in the current environment can be effectively interfered.

[0077] Further, the signal processing unit 111 is further configured to send the status information of the software radio module 1 to the control end through the second interface 122, and send the status information of other software radio modules received through the third interface 123 to the control end through the second interface 122. In this embodiment, each software radio module 1 can sequentially transfer its own status information to the control end through the previous software radio modules. Among them, the status information is, for example: frequency band configuration information (for example: indicating which frequency band of the drone it interferes with), or enabling completion information (that is, indicating that it has started working). Further, each software radio module 1 does not need to set its own ID, number or other identity information in advance, but after all the software radio modules 1 are cascaded, they can be automatically numbered. In this automatic numbering method, there is no order limit for each software radio module 1 during cascading, which makes the application of the software radio module 1 more flexible.

[0078] One specific way of transmitting the status information is, for example: the control information sent by the control end may include an information acquisition instruction. After all the software radio modules 1 are powered on, the control end can send an information acquisition instruction to the first software radio module 1. After receiving the information acquisition instruction, the processor 1111 of the first software radio module 1 automatically generates an initial number (for example, 1), and reports its own number and status information to the control end through the second interface 122, and at the same time sends the information acquisition instruction and its own number to the second software radio module 1 through the third interface 123. After receiving the information acquisition instruction and the number of the first software radio module 1, the second software radio module 1 automatically generates its own number (such as numbering in ascending order, for example, 2), and then sends its own number and status information to the first software radio module 1 through the second interface 122, and so on. Finally, the first software radio module 1 sends back the numbers and status information of all the software radio modules 1 received through the third interface 123 to the control end. The control end can then know the number and corresponding status information of all the currently connected software radio modules 1. It can be understood that the software radio module 1 may also not need to receive the information acquisition instruction, but automatically upload its own status information, for example, send its own power-on completion information to the control end spontaneously after power-on. In this embodiment, the signal processing unit 111 of each software radio module 1 can directly or indirectly send the status information to the control end, enabling the control end to know the status of each software radio module 1 in a timely manner.

[0079] Further, the control information further includes software upgrade information, and the signal processing unit 111 is further configured to perform software upgrade according to the software upgrade information, such as upgrading the stored UAV interference code or upgrading the algorithm of the signal processing unit 111. In this embodiment, the control terminal can perform software upgrade on the signal processing unit 111 in each software radio module 1 according to actual requirements. This upgrade method is more convenient and efficient, and moreover, without the need to greatly modify the hardware circuit of the UAV countermeasure system, the effects of improving performance and signal decoding efficiency can be achieved. Of course, in other embodiments, the software radio module 1 can also be upgraded by a dedicated device.

[0080] Figure 7 FIG. 4 is a logic structure diagram of a software radio module in an embodiment of the present invention. The software radio module 1 in this embodiment includes a function module 11, an interface component (not shown), a first circuit board 13, a second circuit board 14, and a board-to-board connector 15 (i.e., a BTB connector). The function module 11 includes a signal processing unit 111 disposed on the first circuit board 13 and a power amplification unit 112 disposed on the second circuit board 14. The first circuit board 13 and the second circuit board 14 are electrically connected through the board-to-board connector 15. The signal processing unit 111 and the power amplification unit 112 are respectively electrically connected to the board-to-board connector 15.

[0081] In this embodiment, the first circuit board 13 includes the signal processing unit 111, that is, the signal processing unit 111 can be composed of several devices (such as a processor 1111 and a transceiver 1112) on the first circuit board 13. The second circuit board 14 includes the power amplification unit 112, that is, the power amplification unit 112 can be composed of several devices (such as a power amplifier) on the second circuit board 14. The signal processing unit 111 and the power amplification unit 112 in the function module 11 are respectively disposed on two different circuit boards, and the two circuit boards are stacked, so as to reduce the volume of the entire software radio module 1. In addition, the first circuit board 13 and the second circuit board 14 are connected through the board-to-board connector 15, and the board-to-board connector 15 has a small volume, which is convenient for connecting the two stacked circuit boards, so the volume of the entire software radio module 1 can be further reduced, and it is more convenient to integrate multiple software radio modules 1 into a product, thereby improving the integration degree.

[0082] Further, in addition to the function module 11 being dispersedly disposed on two circuit boards, the interface component 12 can also be dispersedly disposed on two circuit boards. Figure 8 is Figure 7A specific layout scheme of the software radio module 1 in the illustrated embodiment. In this embodiment, the software radio module 1 includes a functional module 11 (not shown), an interface component 12, a first circuit board 13, a second circuit board 14, and a board-to-board connector 15 (such as a BTB connector). Among them, the functional module 11 includes a signal processing unit 111 and a power amplification unit 112. Moreover, the interface component 12 includes a first interface 121 disposed on the second circuit board 14, and a second interface 122 and a third interface 123 disposed on the first circuit board 13.

[0083] In this embodiment, since the first interface 121 is used as an interface for star cascading and is mainly used for the enable control of the power amplification unit 112 on the second circuit board 14 by the control end, therefore, disposing the first interface 121 on the second circuit board 14 can enable the second circuit board 14 to be used as an independent power amplifier board. At the same time, since the second interface 122 and the third interface 123 are used as interfaces for chain cascading and are mainly used for the control of the signal processing unit on the first circuit board 13 by the control end, therefore, disposing the second interface 122 and the third interface 123 on the first circuit board 13 is more convenient for the control end to control the signal processing unit 111.

[0084] Furthermore, as Figure 8 described, the interface component 12 further includes a power supply interface 124, which is electrically connected to the functional module 11 and is used for inputting a power supply voltage and supplying power to the functional module 11. In this embodiment, the power supply interfaces 124 of each software radio module 1 are respectively connected to a path of power supply, that is, each software radio module 1 is independently powered. In this way, in the star cascading mode, when a certain path of power supply fails, it does not affect the operation of other software radio modules 1, improving the reliability of the system.

[0085] Furthermore, as Figure 8As shown, the power interface 124 is provided on the second circuit board 14. The power interface 124 is electrically connected to the power amplification unit 112 and also supplies power to the devices on the first circuit board 13 through the board-to-board connector 15. In this embodiment, setting the power interface 124 on the second circuit board 14 enables the second circuit board 14 to work independently, that is, the second circuit board 14 can be used alone as a power amplifier board. On the other hand, since the current of the power amplification unit 112 is relatively large and the main power supply object is the power amplification unit 112, setting the power interface 124 on the second circuit board 14 can ensure that the power accessed by the power interface 124 preferentially supplies power to the power amplification unit 112. When the power interface 124 of the software radio module 1 accesses power, the power first supplies power to the power amplification unit 112 that is on the same second circuit board 14 as the power interface 124, and then supplies power to the devices (including the signal processing unit 111) on the first circuit board 13 through the board-to-board connector 15. In this embodiment, the power supply can be a voltage power supply. When the voltage power supply supplies power to the devices on the first circuit board 13 and the second circuit board 14 through the power interface 124, the actual current magnitude in the power supply path is determined by the power consumption magnitude of the electrical appliances. Since the power consumption of the power amplification unit 112 is relatively large, the accessed power supply current will also be relatively large. If the power interface 124 is provided on the first circuit board 13, the voltage power supply needs to supply power to the power amplification unit 112 through the board-to-board connector 15. Therefore, a relatively large power supply current will flow through the board-to-board connector 15, which requires higher requirements for the board-to-board connector 15 and will increase the cost and the volume occupied by the wiring. In this embodiment, by setting the power interface 124 on the second circuit board 14, since the power consumption of the devices (such as the processor 1111, etc.) on the first circuit board 13 is relatively small, the power supply current provided by the voltage power supply for the first circuit board 13 is also relatively small, so the board-to-board connector 15 will not pass a large current. The power interface 124 in this embodiment only needs to output a relatively small current to the first circuit board 13 through the board-to-board connector 15, while the large current is only in the power supply path from the power interface 124 on the second circuit board 14 to the power amplification unit 112, thereby avoiding the above problems.

[0086] Further, as Figure 8 shown, the interface component 12 further includes a radio frequency output interface 125. The radio frequency output interface 125 is electrically connected to the power amplification unit 112 and is used to output the radio frequency signal generated by the power amplification unit 112. In this embodiment, the radio frequency output interface 125 can be used to connect to an antenna. That is, in use, the antenna can be directly connected to the radio frequency output interface 125, which is more convenient for users to add or remove the software radio module 1 and the antenna according to actual needs.

[0087] Further, as Figure 8As shown, the first interface 121, the second interface 122, and the third interface 123 are respectively arranged at the edge positions of the corresponding circuit boards, which is more convenient for cascading with the control end or other software radio modules 1 (not shown). Similarly, the power interface 124 and the radio frequency output interface 125 are also arranged at the edge positions of the second circuit board 14, which is more convenient for accessing the power supply and the antenna.

[0088] Figure 9 FIG. 4 is a logic structure diagram of a software radio module according to an embodiment of the present invention. Combining the foregoing embodiments, the software radio module 1 of this embodiment includes a functional module 11, an interface component 12, a first circuit board 13, a second circuit board 14, and a board-to-board connector 15. Among them, the interface component 12 includes a first interface 121, a second interface 122, a third interface 123, a power interface 124, and a radio frequency output interface 125. The functional module 11 includes a signal processing unit 111 arranged on the first circuit board 13 and a power amplification unit 112 arranged on the second circuit board 14. The signal processing unit 111 includes a processor 1111 and a transceiver 1112 that are electrically connected. The processor 1111 is electrically connected to the second interface 122 and the third interface 123 respectively, and is also electrically connected to the first interface 121 through the board-to-board connector 15. The transceiver 1112 is electrically connected to the processor 1111, and is also electrically connected to the power amplification unit 112 through the board-to-board connector 15. The first circuit board 13 and the second circuit board 14 are electrically connected through the board-to-board connector 15. The board-to-board connector 15 includes a digital board-to-board connector 151 and a radio frequency board-to-board connector 152. The radio frequency board-to-board connector 152 is electrically connected to the transceiver 1112 and the power amplification unit 112 respectively, and the digital board-to-board connector 151 is electrically connected to the processor 1111, the power amplification unit 112, and the first interface 121 respectively. As Figure 9 shown, the digital board-to-board connector 151 is also electrically connected to the power interface 124 and the power supply circuit 113 respectively. The software radio module 1 of this embodiment can support two cascading methods: a star cascading method and a chain cascading method.

[0089] For the star - type cascading mode, when the control terminal is respectively connected to the first interfaces 121 of each software radio module 1 through its corresponding first connection terminals, the star - type cascading mode can be constructed. Since the first interface 121 of each software radio module 1 is also connected to its own power amplification unit 112 and is connected to the processor 1111 through the digital board - to - board connector 151, enabling signals, status information, operation indication information, etc. can be transmitted. In this way, the control terminal can obtain the status of the software radio module 1 and can also individually control the enabling of the software radio module 1. Specifically, after the signal processing unit 111 and the power amplification unit 112 are powered on and initialized, the processor 1111 and / or the power amplification unit 112 output a high - level status signal to the control terminal through the first interface 121. After receiving the high - level status signal, the control terminal can, under the manual trigger of the operator or automatically, output an enabling signal to the power amplification unit 112 to trigger the enabling of the power amplification unit 112. After the power amplification unit 112 is successfully enabled, it will feedback an operation indication signal to the control terminal through the first interface 121. After receiving the operation indication signal, the control terminal can know that the power amplification unit 112 has been enabled. After that, the software radio module 1 can start working. In practical applications, the control terminal can control multiple software radio modules 1 to start working to simultaneously transmit signals of different frequency bands. In the star - type cascading control mode, the control mode of the control terminal for each software radio module 1 is simple and efficient, which can improve the startup efficiency of the overall system.

[0090] For the chain cascade mode, the second connection end of the control terminal is connected to the second interface 122 of the first software radio module 1. The third interface 123 of the first software radio module 1 is connected to the second interface 122 of the second software radio module 1 through a corresponding connecting line, and so on until it is connected to the second interface 122 of the last software radio module 1, and the third interface 123 of the last software radio module 1 is left floating. In this way, the chain cascade mode can be constructed. After power-on, the control terminal sends an information acquisition instruction to the first software radio module 1. After receiving it, the processor 1111 of the first software radio module 1 automatically generates a number and reports information such as the number of this software radio module 1 and frequency band configuration information to the control terminal. At the same time, it forwards the instruction of the control terminal to the second software radio module 1 through the third interface 123 and sends the current software radio module number. After receiving the instruction and the number of the first software radio module 1, the second software radio module 1 automatically generates its own number, replies with status information with the number and frequency band configuration information, etc. of itself through the second interface 122, then forwards the instruction of the control terminal through the third interface 123 and sends the current software radio module number to the third software radio module, and so on until the last software radio module 1. The first software radio module 1 sends all software radio module numbers + information back to the control terminal through the second interface 122. In this chain cascade mode, through the second interface 122 and the third interface 123 of each software radio module 1, the control terminal can obtain information such as the number of all currently connected software radio modules 1 and the frequency band configuration corresponding to the software radio module 1, and can send corresponding instructions to control whether the corresponding software radio module 1 starts to work. Moreover, the control terminal can also change the control parameters of the processor 1111 in each software radio module 1 to change the parameters of the final output signal (such as the content of the interference code and the bandwidth of the interference signal). In addition, in the chain cascade mode, the control terminal can also perform software upgrade on the processor 1111 in the corresponding software radio module 1 through the second interface 122 and the third interface 123, so that the software radio module 1 supports software upgrade and iteration, that is, without changing the hardware, the interference signal can be adjusted specifically according to the UAV communication protocol. Of course, in other embodiments, the processor 1111 of the software radio module 1 can also be software-upgraded by a dedicated device.

[0091] As can be seen from the above, the enable signal, status signal, and operation indication signal can be used for both star - type cascade control and chain - type cascade control, and the functions of these three signals are basically the same. The differences are as follows: In the star - type cascade mode, the control terminal directly communicates with the signal processing unit 111 and power amplification unit 112 of the corresponding software radio module 1 through the first interface 121 on each software radio module 1. In the chain - type connection mode, the control terminal communicates with the signal processing unit 111 and power amplification unit 112 in each software radio module 1 through the second interface 122 and third interface 123 of each software radio module 1. In addition, in this embodiment, the above - mentioned enable signal, status signal, operation indication signal, and control signal, etc., can be signals that match a preset level value, preset signal type, etc., which are not specifically defined here.

[0092] In addition, in the star - type cascade mode, since the control terminal mainly controls the switches of each software radio module 1, the cost is relatively low, the operation mode is simple, and the operation efficiency is relatively high, which is suitable for the integration of some simple systems. In the chain - type cascade mode, the control terminal can not only control the switches of each software radio module 1, but also flexibly change the configuration parameters of each software radio module 1, so the operation mode is more intelligent. Moreover, since only one connection terminal of the control terminal is used in the chain - type cascade mode, the interface design of the control terminal is simplified. The software radio module 1 of this embodiment can support both of the above - mentioned cascade modes at the same time, so the applicable usage scenarios are more extensive.

[0093] It should be understood that in some applications, if the star - type cascade control mode needs to be applied, the first interface 121 of each software radio module 1 can be directly connected to the corresponding first connection terminal of the control terminal, while the second interface 122 and third interface 123 of each software radio module 1 are in an unconnected state. If the chain - type cascade control mode needs to be applied, the first interface 121 of each software radio module 1 can be in an unconnected state, while the second interfaces 122 and third interfaces 123 of each software radio module 1 are connected in sequence and form a chain - type structure with the control terminal. Of course, in some applications, the star - type cascade control mode and the chain - type cascade control mode can also be applied simultaneously, or a part of the software radio modules 1 can be constructed into the star - type cascade control mode, and another part of the software radio modules 1 can be constructed into the chain - type cascade control mode.

[0094] Furthermore, as Figure 9 shown, as an embodiment, the first interface 121 is, for example, an I / O control interface, the second interface 122 is, for example, an RS422 input port, and the third interface 123 is, for example, an RS422 output port. In this embodiment, since the RS422 interface has excellent anti - interference performance, it can ensure the accuracy of communication signals in an environment with complex radio frequency signals.

[0095] Further, as Figure 9 shown, the power interface 124 is disposed on the second circuit board 14. The power interface 124 is electrically connected to the power amplification unit 112 and is also electrically connected to the signal processing unit 111 through a board-to-board connector 15 (digital board-to-board connector 151). In addition, the functional module 11 further includes a power supply circuit 113, and the power supply circuit 113 is electrically connected to the digital board-to-board connector 151. The power supply circuit 113 is configured to perform voltage conversion on the input power supply voltage and supply power to each device (including the signal processing unit 111) on the first circuit board 13. The power supply circuit 113 is, for example, a voltage conversion circuit. In addition, when the power interface 124 is disposed on the second circuit board 14, since the power amplification unit 112 is powered on first, and after a period of time, the signal processing unit 111 is powered on. After the signal processing unit 111 is powered on, the processor 1111 can send a signal indicating the completion of power-on to the first interface 121 through the digital board-to-board connector 151. In this embodiment, the power amplification unit 112 is also electrically connected to the transceiver 1112 through a board-to-board connector 15 (radio frequency board-to-board connector 152). After the signal processing unit 111 is enabled, the processor 1111 generates a source signal, and the transceiver 1112 performs modulation and other processing to convert it into an initial signal, and then sends the initial signal to the power amplification unit 112 through the radio frequency board-to-board connector 152. The power amplification unit 112 amplifies the initial signal and outputs a radio frequency signal.

[0096] Further, in some embodiments, the software radio module 1 can be wrapped by metal aluminum material, which can provide good heat dissipation and signal shielding, thereby improving the working performance.

[0097] The embodiment of the present invention further provides an unmanned aerial vehicle countermeasure system. The unmanned aerial vehicle countermeasure system includes the software radio module 1 described above. The logical structure of the software radio module 1 can refer to the foregoing embodiments and will not be elaborated herein.

[0098] Figure 10 is the logical structure diagram of the unmanned aerial vehicle countermeasure system in an embodiment of the present invention. The unmanned aerial vehicle countermeasure system in this embodiment includes a control terminal 2 and a plurality of software radio modules 1. The control terminal 2 is, for example, a single-chip microcomputer. Taking one of the software radio modules 1 as an example, as Figure 2 shown, the software radio module 1 includes a functional module 11 and an interface component 12. The interface component 12 includes a first interface 121, and the first interface 121 is, for example, an I / O control interface. Combining Figure 2 and Figure 10, the control terminal 2 includes a plurality of first connection terminals, and the first interfaces 121 of the plurality of software radio modules 1 are detachably and electrically connected to the plurality of first connection terminals one by one. It should be understood that in other embodiments, the number of software radio modules 1 may also be only one.

[0099] In this embodiment, the control terminal 2 can be respectively connected to the plurality of software radio modules 1 through its plurality of first connection terminals, so as to construct an anti-drone system with a star-shaped cascade. This connection method has a lower cost and a simple operation mode.

[0100] In this way, the control terminal 2 can control a plurality of software radio modules 1 at the same time. When the control terminal 2 and the plurality of software radio modules 1 construct an anti-drone system with a star-shaped cascade, the control terminal 2 can output control information to the first interface 121 of the corresponding software radio module 1 under automatic triggering or manual triggering by the operator, so as to perform corresponding control on the functional module 11. After the functional module 11 finishes executing according to the control information, it will feedback an operation indication signal to the control terminal through the first interface 121. After receiving the operation indication signal, the control terminal 2 can know that the control of the functional module 11 has been completed. The functional module 11 will also send status information to the control terminal 2 through the first interface 121, and the control terminal 2 can know the status information of the functional module 11 when receiving the status information.

[0101] Figure 11 is the logical structure diagram of the anti-drone system in an embodiment of the present invention. The anti-drone system of this embodiment includes a control terminal 2 and a plurality of software radio modules 1. The control terminal 2 is, for example, a single-chip microcomputer. As Figure 4 shown, the interface component 12 includes a second interface 122 and a third interface 123. Combining Figure 4 and Figure 11 , the control terminal 2 includes a second connection terminal, and the second interface 122 of the first software radio module 1 is detachably and electrically connected to the second connection terminal of the control terminal 2. The third interface 123 of the first software radio module 1 is detachably and electrically connected to the second interface 122 of the second software radio module 1. The second interface 122 of the middle software radio module 1 is respectively detachably and electrically connected to the third interface 123 of the previous software radio module 1 of the software radio module 1. The third interface 123 of the middle software radio module 1 is respectively detachably and electrically connected to the second interface 122 of the next software radio module 1 of the software radio module 1. The third interface 123 of the last software radio module 1 is suspended. Among them, the middle software radio module 1 is other software radio modules 1 except the first software radio module 1 and the last software radio module 1 among all the software radio modules 1.

[0102] Of course, it is understandable that the number of software radio modules 1 can be two or one. If there are two, the middle software radio module 1 mentioned above does not exist; if there is one, there is only the first software radio module 1 mentioned above.

[0103] In this embodiment, all software radio modules 1 can be connected end to end in sequence through their respective second interfaces 122 and third interfaces 123, and the second interface 122 of the first software radio module 1 is electrically connected to the second connection end of the control terminal 2. In this way, the control terminal 2 can be constructed into a chain-cascaded drone countermeasure system with multiple software radio modules 1. This connection method enables the control terminal 2 to not only control the opening or closing of any software radio module 1, but also flexibly change its interference code, bandwidth and other parameters, which is more intelligent.

[0104] In this mode, the control terminal 2 can also control multiple software radio modules 1 at the same time. After power-on, the control terminal 2 sends an information acquisition instruction to the first software radio module 1. After receiving the information acquisition instruction, the processor 1111 of the first software radio module 1 reports the information of the software radio module 1 number and the frequency band configuration information to the control terminal 2, and forwards the instruction of the control terminal to the second software radio module 1 through the third interface 123, and sends the current software radio module 1 number. After receiving the instruction and the number of the first software radio module 1, the second software radio module 1 replies with its own numbered status information and frequency band configuration information through the second interface 122, and then forwards the instruction of the control terminal 2 through the third interface 123, and sends the current software radio module 1 number to the third software radio module 1, and so on, until the last software radio module 1. The first software radio module 1 returns all software radio module 1 numbers + information to the control terminal 2 through the second interface 122. In this chain cascade mode, through the second interface 122 and the third interface 123 of each software radio module 1, the control end 2 can obtain the number of all software radio modules 1 currently connected and the frequency band configuration information corresponding to the software radio module 1, and can send corresponding instructions to control whether the corresponding software radio module 1 is turned on, and the control end 2 can also change the control parameters of the processor 1111 in each software radio module 1 to change the parameters of the final output signal (such as the content of the interference code and the bandwidth of the interference signal). In addition, in the chain cascade mode, the control end 2 can also perform software upgrades on the processor 1111 in the corresponding software radio module 1 through the second interface 122 and the third interface 123, so that the software radio module 1 can support software upgrade iterations, that is, without changing the hardware, the interference signal is adjusted in a targeted manner according to the drone communication protocol. Of course, in other embodiments, the processor 1111 of the software radio module 1 can also be upgraded by a dedicated device.

[0105] In this embodiment, the constructed UAV countermeasure system can simultaneously transmit multiple interference signals (such as interference signals of different frequency bands) to interfere with the communication of different types of UAVs. At the same time, the UAV countermeasure system can increase or decrease the number of software radio modules 1 according to the number of frequency bands, so that one frequency band corresponds to one module. In the case of adding a new UAV frequency band, the module can be directly added without involving major changes to the system, making the upgrade and iteration convenient and fast.

[0106] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A software radio module, characterized in that, It includes a functional module and an interface component; the functional module is electrically connected to the interface component, and the interface component is also used for detachably electrically connecting to a control terminal and / or the interface component of other software radio modules; The interface component is used to receive control information from the control terminal; The functional module is used to generate radio frequency signals of corresponding frequency bands based on the control information.

2. The software radio module according to claim 1, wherein The interface component includes a first interface, one end of the first interface is used for detachably electrically connecting to one of the first connection ends of the control terminal, and the other end of the first interface is electrically connected to the functional module; The first interface is used to receive the control information from the control terminal and send the control information to the functional module.

3. The software radio module according to claim 2, characterized in that The control information includes an enable signal; the functional module includes a power amplification unit, and the power amplification unit is electrically connected to the first interface; The power amplification unit is used to output the radio frequency signal when receiving the enable signal.

4. The software radio module according to claim 3, characterized in that The functional module further includes a signal processing unit, the signal processing unit is electrically connected to the power amplification unit and the first interface respectively, and the signal processing unit and / or the power amplification unit is used to send status information to the control terminal through the first interface.

5. The software radio module according to claim 1, wherein The interface component includes a second interface and a third interface; One end of the second interface is used for detachably electrically connecting to the second connection end of the control terminal or the third interface of the previous software radio module, and the other end of the second interface is electrically connected to the functional module; the second interface is used to directly receive or receive the control information from the control terminal through the previous software radio module and send the control information to the functional module; One end of the third interface is electrically connected to the functional module, and the other end of the third interface is used for detachably electrically connecting to the second interface of the subsequent software radio module or being suspended; the third interface is used to send the control information of the control terminal to the subsequent software radio module.

6. The software radio module according to claim 5, characterized in that The control information includes an enable signal; the functional module includes a signal processing unit and a power amplification unit; The signal processing unit is electrically connected to the second interface, the third interface and the power amplification unit respectively, and is used to generate an initial signal when receiving the enable signal; The power amplification unit is electrically connected to the signal processing unit, and is used to perform power amplification on the initial signal to generate the radio frequency signal when receiving the enable signal.

7. The software radio module according to claim 6, wherein The signal processing unit includes a processor and a transceiver; The processor is electrically connected to the second interface and the third interface respectively, and is used to generate a source signal when receiving the enable signal; The transceiver is electrically connected to the processor and the power amplification unit respectively, and is used to modulate the source signal into the initial signal when receiving the enable signal.

8. The software radio module according to claim 6 or 7, characterized in that, The signal processing unit is also used to send the status information of the present software radio module to the control terminal through the second interface, and send the status information of other software radio modules received through the third interface to the control terminal through the second interface.

9. The software radio module according to claim 1, wherein The software radio module further includes a first circuit board and a second circuit board. The functional module includes a signal processing unit disposed on the first circuit board and a power amplification unit disposed on the second circuit board. The first circuit board and the second circuit board are electrically connected through a board-to-board connector; the signal processing unit and the power amplification unit are respectively electrically connected to the board-to-board connector.

10. The software radio module according to claim 9, characterized in that, The interface component includes a power supply interface and / or a radio frequency output interface; the power supply interface is electrically connected to the functional module for inputting a power supply voltage and supplying power to the functional module. The radio frequency output interface is electrically connected to the power amplification unit for outputting the radio frequency signal generated by the power amplification unit.

11. The software radio module according to claim 10, wherein, The power supply interface is disposed on the second circuit board; the power supply interface is electrically connected to the power amplification unit and also supplies power to the devices on the first circuit board through the board-to-board connector.

12. An unmanned aerial vehicle countermeasure system, characterized in that, The unmanned aerial vehicle countermeasure system includes the software radio module according to any one of claims 1 to 11.

13. The drone countermeasure system according to claim 12, characterized in that, The unmanned aerial vehicle countermeasure system further includes a control terminal, and the control terminal includes at least one first connection terminal; the number of the software radio modules is one or more, and the interface component includes a first interface. The first interfaces of the software radio modules are detachably and electrically connected to the first connection terminals in a one-to-one correspondence.

14. The drone countermeasure system according to claim 12, wherein, The unmanned aerial vehicle countermeasure system further includes a control terminal, and the control terminal includes a second connection terminal; the number of the software radio modules is multiple, and the interface component includes a second interface and a third interface. The second interface of the first software radio module is detachably electrically connected to the second connection terminal of the control terminal, the third interface of the last software radio module is left floating, the second interfaces of the intermediate software radio modules are respectively detachably electrically connected to the third interfaces of the previous software radio modules of the software radio modules, and the third interfaces of the intermediate software radio modules are respectively detachably electrically connected to the second interfaces of the subsequent software radio modules of the software radio modules, where the intermediate software radio modules are the other software radio modules except the first software radio module and the last software radio module among the multiple software radio modules.

Images