A rapidly deployable non-contact directional radio frequency vehicle arresting system

Abstract

The application discloses a kind of quick deployment non-contact directional radio frequency type vehicle blocking system, including integrated platform and integrated installation on it detection module, control module, solid-state microwave generating module, multistage solid-state power amplifier module, directional transmitting antenna and power module.Detection module real-time acquisition image and identify target vehicle in the region of defense;Control module determines transmitting power according to target information and generates trigger instruction;Solid-state microwave generating module uses all-solid-state design, immediately generates radio frequency signal after receiving trigger instruction without preheating;Multistage solid-state power amplifier module transmits to directional transmitting antenna after radio frequency signal is amplified gradually;Directional transmitting antenna converts high-power radio frequency signal into electromagnetic wave radiation, interferes with target vehicle electronic system and makes it stop.The application realizes second-level response, repeatable emission, adjustable output power and non-contact blocking, and can be fixedly installed or deployed on vehicle.

Description

Technical Field

[0001] This invention relates to a rapidly deployable non-contact directional radio frequency vehicle interception system, belonging to the field of security equipment and special vehicle interception technology. Background Technology

[0002] Currently, existing methods of forcibly stopping vehicles mostly employ physical tire deflation devices, tire spikes, or impact-based blocking devices, which suffer from slow response times, potential injury to drivers and passengers, and difficulties in clearing the vehicles after interception. In recent years, non-contact blocking technology that utilizes radio frequency energy to interfere with automotive electronic control units (ECUs) has begun to attract attention. Traditional radio frequency blocking devices are mostly based on magnetrons or traveling wave tubes to generate microwaves, which have drawbacks such as large size, short lifespan, long warm-up time, and difficulty in simultaneous multiple transmissions, making them unsuitable for rapid deployment and high reliability requirements. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a rapidly deployable non-contact directional radio frequency vehicle blocking system.

[0004] The technical solution provided by this invention is as follows: A rapidly deployable non-contact directional radio frequency vehicle blocking system, characterized in that it includes an integrated platform and a detection module, a control module, a solid-state microwave generation module, a multi-stage solid-state power amplifier module, a directional transmitting antenna, and a power supply module integrated and installed on the integrated platform; The detection module is used to collect visual images of the fortified area in real time, classify, identify and continuously track target vehicles entering the area, and transmit the target vehicle information to the control module in real time. The signal input terminal of the control module is connected to the signal output terminal of the detection module, and its control signal output terminal is connected to the control signal input terminal of the solid-state microwave generation module. It is used to determine the required transmission power according to the target vehicle information and generate a trigger command to be sent to the solid-state microwave generation module. The solid-state microwave generating module uses solid-state semiconductor devices. Its control signal input terminal is connected to the signal output terminal of the control module, and its radio frequency signal output terminal is connected to the radio frequency signal input terminal of the multi-stage solid-state power amplifier module. It is used to generate radio frequency signals immediately after receiving the trigger command. The multi-stage solid-state power amplifier module adopts a multi-stage semiconductor amplification structure, including a pre-drive amplification stage and a final power amplification stage. Its radio frequency signal input terminal is connected to the output terminal of the solid-state microwave generation module, and its radio frequency signal output terminal is connected to the feed interface of the directional transmitting antenna. It is used to amplify the input radio frequency signal stage by stage and then transmit it to the directional transmitting antenna. The directional transmitting antenna is a high-gain directional array antenna, used to convert the amplified high-power radio frequency signal into spatial electromagnetic waves for radiation. The output terminal of the power module is electrically connected to the power input terminals of the detection module, the control module, and the solid-state microwave generation module, respectively, to provide energy supply for the entire system.

[0005] Furthermore, the directional transmitting antenna includes a feed interface, a power divider phase-shifting network, an array backplane, and multiple antenna array elements; The array backplate serves as a support base and is made of metal sheet. Its front side is used to fix the power divider phase shifter network, and the antenna array elements are connected to the power divider phase shifter network. The power supply interface is fixed to the edge of the array backplane, its inner conductor is connected to the input end of the power divider phase shifter network, and its outer conductor is connected to the metal substrate of the array backplane. The total input terminal of the power divider phase shifter network is connected to the inner conductor of the feed interface, and the number of its output terminals is the same as the number of antenna array elements. Each output terminal is connected to the feed point of the antenna array element at the corresponding position. Multiple antenna array elements are arranged in a slotted array and fixed in a linear arrangement on the power-dividing phase-shifting network.

[0006] Furthermore, the solid-state microwave generation module integrates an oscillator and amplifier circuit based on gallium nitride technology.

[0007] Furthermore, the final power amplifier stage employs a gallium nitride-based high-power amplifier transistor / module.

[0008] Furthermore, the detection module employs a high-definition optical imaging sensor.

[0009] Furthermore, the high-definition optical imaging sensor is a CMOS image sensor.

[0010] The beneficial effects of this invention are: This invention solves the problems of slow response, large size, low reliability, inflexible layout, easy damage to electro-vacuum components, and the need for preheating in existing vehicle blocking systems. This invention utilizes radio frequency electromagnetic energy to force the vehicle's electronic system to fail. It has the following advantages: (1) The system adopts an all-solid-state microwave generation and power amplification scheme, which enables instantaneous start-stop, repeated transmission, and long lifespan. The solid-state microwave generation module eliminates the need for preheating, achieving second-level response, multiple interceptions, and low collateral damage.

[0011] (2) Through multi-stage solid-state power amplification modules, the output power can be flexibly adjusted according to the target distance and vehicle type to achieve non-lethal blocking.

[0012] (3) The detection, control, microwave generation, amplification and transmitting antenna are highly integrated on the same platform. It is compact, quick to deploy, and can be fixedly installed at the inspection station or moved by vehicle.

[0013] (4) Electromagnetic waves can accurately cover the target vehicle, reducing the collateral impact on surrounding electronic equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a block diagram illustrating the electrical principle of the present invention; Figure 3 This is a schematic diagram of the directional array antenna of the present invention; Figure 4 This is a schematic diagram illustrating the interaction between the present invention and the target vehicle during use; Figure 5 This is a schematic diagram of the workflow of the present invention.

[0015] In the diagram: 1. Integrated platform; 2. Detection module; 3. Control module; 4. Solid-state microwave generation module; 5. Multi-stage solid-state power amplifier module; 6. Directional transmitting antenna; 7. Power supply module; 8. Feed interface; 9. Power divider phase shifter network; 10. Array backplane; 11. Antenna array element. Detailed Implementation

[0016] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings: like Figures 1-4 As shown, a rapidly deployable non-contact directional radio frequency vehicle blocking system includes an integrated platform 1 and a detection module 2, a control module 3, a solid-state microwave generation module 4, a multi-stage solid-state power amplifier module 5, a directional transmitting antenna 6, and a power supply module 7, all integrated and installed on the integrated platform 1.

[0017] In this embodiment, the integrated platform 1 uses a portable tripod platform. Its top or support surface is equipped with standard physical and electrical interfaces for securely installing and fixing all the aforementioned functional modules. This design allows the entire system to be quickly deployed to checkpoints, temporary checkpoints, and other locations requiring rapid fortification, or easily stored and moved, providing extremely high mobility.

[0018] The output terminal of power module 7 is electrically connected to the power input terminals of detection module 2, control module 3, and solid-state microwave generation module 4 via power cables. Power module 7 is used to convert the external AC mains power or the DC power from the internal battery into stable DC operating voltages of different voltage levels required by each module, providing energy supply for the entire system.

[0019] The detection module 2 and control module 3 are bidirectionally connected via a communication data cable. The detection module 2 uses a high-definition optical imaging sensor (such as a CMOS image sensor, Keyence IV3-G500CA-T), which is fixed at the front end of the integrated platform 1. Its detection field of view covers the protected area of ​​the system. The detection module 2 is used to acquire visual images of the protected area in real time, and can classify and identify target vehicles entering the area, identify target vehicle information, and continuously track the targets.

[0020] The detection module 2 transmits the target vehicle information to the control module 3 in real time.

[0021] The control module 3 is a programmable logic controller (PLC). Its signal input terminal is connected to the signal output terminal of the detection module 2, and its control signal output terminal is connected to the control signal input terminal of the solid-state microwave generation module 4. The control module 3 determines the required transmission power based on the target vehicle information, ensures that the radio frequency energy is effectively coupled to the target vehicle's engine control unit (ECU), generates a trigger command (a digital trigger command containing the aforementioned power value), and sends the trigger command to the solid-state microwave generation module 4.

[0022] The solid-state microwave generation module 4 uses solid-state semiconductor devices and integrates an oscillator and amplifier circuit based on gallium nitride (GaN) technology. The control signal input terminal of the solid-state microwave generation module 4 is connected to the signal output terminal of the control module 3, and its RF signal output terminal is connected to the RF signal input terminal of the multi-stage solid-state power amplifier module 5 via an RF coaxial cable. Upon receiving a trigger command from the control module 3, the solid-state microwave generation module 4 immediately generates an RF signal without any preheating. Due to its all-solid-state design, the solid-state microwave generation module 4 has a startup response time in the microsecond range, requiring no preheating.

[0023] The multi-stage solid-state power amplifier module 5 adopts a multi-stage semiconductor amplification structure, including a pre-drive amplification stage and a final power amplification stage; wherein, the final power amplification stage uses a gallium nitride (GaN) based high-power amplification transistor / module. Its RF signal input terminal is connected to the output terminal of the solid-state microwave generation module 4 via an RF coaxial cable, and its RF signal output terminal is connected to the feed interface 8 of the directional transmitting antenna 6 via a high-power RF feed line. The multi-stage solid-state power amplifier module 5 amplifies the RF signal input from the solid-state microwave generation module 4 stage by stage through its internal pre-drive amplification stage and final power amplification stage, and the amplified high-power RF signal is transmitted to the directional transmitting antenna 6.

[0024] like Figure 3 As shown, the directional transmitting antenna 6 is a high-gain directional array antenna, including a feed interface 8, a power divider phase shifter network 9, an array backplane 10, and antenna array elements 11.

[0025] The array backplate 10 serves as the supporting base for the entire directional transmitting antenna 6 and is made of sheet metal. Its front side (i.e., the radiating surface facing the target vehicle) is used to fix the power divider / phase shifter network 9, on which the antenna array elements 11 are connected. The array backplate 10 itself is a grounding layer, serving as an electromagnetic isolation and reflection layer.

[0026] The power supply interface 8 is a standardized RF coaxial connector, fixed to the edge of the array backplane 10. Its inner conductor is connected to the input terminal of the power divider phase shifter network 9, and its outer conductor is conductive to the metal substrate of the array backplane 10. The power supply interface 8 is connected to the RF feed line of the multi-stage solid-state power amplifier module 5, serving as the input for high-power RF signals.

[0027] The power divider phase shifter network 9 is printed on a printed circuit board (PCB) using a microstrip board and is attached to the array backplane 10. The total input terminal of the power divider phase shifter network 9 is connected to the inner conductor of the feed interface 8, which divides the input high-power RF signal into multiple paths (the number of paths is the same as the number of antenna array elements 11). The number of output terminals of the power divider phase shifter network 9 is the same as the number of antenna array elements 11. Each output terminal of the power divider phase shifter network 9 is connected to the feed point of the corresponding antenna array element 11 through a preset via.

[0028] Multiple antenna array elements 11 are arranged in a slotted array and fixed on the power divider phase shifter network 9 in a linear arrangement.

[0029] High-power radio frequency (RF) signals are fed into the array backplane 10 via the multi-stage solid-state power amplifier module 5 and then into the power divider / phase shifter network 9. The power divider / phase shifter network 9 divides the input high-power RF signal into multiple paths and precisely controls the power distribution and phase of each path. These phase-modulated signals then excite each antenna element 11. The antenna element 11 converts the signal into spatial electromagnetic waves for radiation. During radiation, the array backplane 10 provides a low-impedance ground plane, reflecting and suppressing back radiation, ensuring unidirectional forward transmission of electromagnetic energy and significantly improving the antenna's directional efficiency.

[0030] like Figure 5 As shown, the workflow of this system is as follows: Step S1: The system is quickly deployed. Due to the use of an all-solid-state structure, no preheating is required, and the system enters standby mode instantly after being powered on. Step S2: Detection module 2 performs real-time photoelectric monitoring of the fortified area; Step S3: A target vehicle enters the protected area and is classified and identified by the detection module 2. The target vehicle information is identified, the target is continuously tracked, and the target vehicle information is sent to the control module 3 in real time.

[0031] Step S4: The control module 3 determines the required transmission power based on the target vehicle information, generates a trigger command, and sends the trigger command to the solid-state microwave generation module 4.

[0032] Step S5: Under the trigger command, the solid-state microwave generation module 4 immediately generates an RF signal without any preheating. The RF signal then enters the multi-stage solid-state power amplifier module 5 and is amplified stage by stage.

[0033] Step S6: The amplified high-power radio frequency signal is transmitted to the directional transmitting antenna 6. The antenna array element 11 converts the high-power radio frequency signal into electromagnetic waves and radiates them out. The electromagnetic waves reach the target vehicle and interfere with the vehicle's internal wiring, causing the car to lose power and slow down and stop naturally. This achieves a safe, non-contact, and fast forced stop without any collateral physical damage.

[0034] It should be understood that any parts not described in detail in this specification belong to the prior art. The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements to the technical solutions of the present invention made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A rapidly deployable non-contact directional radio frequency vehicle blocking system, characterized in that, It includes an integrated platform and detection modules, control modules, solid-state microwave generation modules, multi-stage solid-state power amplifier modules, directional transmission antennas and power supply modules integrated and installed on the integrated platform; The detection module is used to collect visual images of the fortified area in real time, classify, identify and continuously track target vehicles entering the area, and transmit the target vehicle information to the control module in real time. The signal input terminal of the control module is connected to the signal output terminal of the detection module, and its control signal output terminal is connected to the control signal input terminal of the solid-state microwave generation module. It is used to determine the required transmission power according to the target vehicle information and generate a trigger command to be sent to the solid-state microwave generation module. The solid-state microwave generating module uses solid-state semiconductor devices. Its control signal input terminal is connected to the signal output terminal of the control module, and its radio frequency signal output terminal is connected to the radio frequency signal input terminal of the multi-stage solid-state power amplifier module. It is used to generate radio frequency signals immediately after receiving the trigger command. The multi-stage solid-state power amplifier module adopts a multi-stage semiconductor amplification structure, including a pre-drive amplification stage and a final power amplification stage. Its radio frequency signal input terminal is connected to the output terminal of the solid-state microwave generation module, and its radio frequency signal output terminal is connected to the feed interface of the directional transmitting antenna. It is used to amplify the input radio frequency signal stage by stage and then transmit it to the directional transmitting antenna. The directional transmitting antenna is a high-gain directional array antenna, used to convert the amplified high-power radio frequency signal into spatial electromagnetic waves for radiation. The output terminal of the power module is electrically connected to the power input terminals of the detection module, the control module, and the solid-state microwave generation module, respectively, to provide energy supply for the entire system.

2. The rapidly deployable non-contact directional radio frequency vehicle blocking system according to claim 1, characterized in that... The directional transmitting antenna includes a feed interface, a power divider phase-shifting network, an array backplane, and multiple antenna array elements; The array backplate serves as a support base and is made of metal sheet. Its front side is used to fix the power divider phase shifter network, and the antenna array elements are connected to the power divider phase shifter network. The power supply interface is fixed to the edge of the array backplane, its inner conductor is connected to the input end of the power divider phase shifter network, and its outer conductor is connected to the metal substrate of the array backplane. The total input terminal of the power divider phase shifter network is connected to the inner conductor of the feed interface, and the number of its output terminals is the same as the number of antenna array elements. Each output terminal is connected to the feed point of the antenna array element at the corresponding position. Multiple antenna array elements are arranged in a slotted array and fixed in a linear arrangement on the power-dividing phase-shifting network.

3. The rapidly deployable non-contact directional radio frequency vehicle blocking system according to claim 1, characterized in that... The solid-state microwave generation module integrates an oscillator and amplifier circuit based on gallium nitride technology.

4. The rapidly deployable non-contact directional radio frequency vehicle blocking system according to claim 1, characterized in that... The final power amplifier stage employs a gallium nitride-based high-power amplifier transistor / module.

5. The rapidly deployable non-contact directional radio frequency vehicle blocking system according to claim 1, characterized in that... The detection module uses a high-definition optical imaging sensor.

6. The rapidly deployable non-contact directional radio frequency vehicle blocking system according to claim 5, characterized in that... The high-definition optical imaging sensor is a CMOS image sensor.

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