A speedboat outboard motor microwave sensitivity characteristics testing system and method

Abstract

The present invention relates to a microwave sensitivity characteristics test system and method for a speedboat outboard motor, and belongs to the field of microwave non-lethality. By building a microwave sensitivity characteristics test system for a speedboat outboard motor, the test system includes a microwave radiation source, a test and measurement device, a control device, and a status monitoring device. A microwave radiation source is used to generate adjustable microwave signals with different working parameters; a test and measurement device is used to receive and measure the microwave signals; a control device is used to control the microwave signals to generate microwave signals with different working parameters; a status monitoring device is used to monitor the status of the speedboat outboard motor, and the microwave sensitivity characteristics of the speedboat outboard motor are judged in combination with the measured microwave signals. The method of the present invention can quickly and accurately obtain the microwave sensitivity characteristics of the speedboat outboard motor, and the test system is simple and easy to operate, which fills the gap in the prior art for testing the microwave sensitivity characteristics of speedboat outboard motors.

Description

Technical Field

[0001] The present invention belongs to the field of non-lethal microwaves, and in particular relates to a system and method for testing microwave sensitivity characteristics of an outboard motor of a speedboat. Background Art

[0002] High-power microwave forced stop technology, as a new disposal method, is gaining increasing attention. Research has shown that when a high-power microwave beam with specific parameters is irradiated on a speedboat's outboard motor, it can disrupt the normal operation of the outboard motor's electrical control system through the boat's cables, causing the outboard motor to shut down, thereby effectively stopping the boat. This method utilizes the interaction between electromagnetic waves and electronic devices, and by adjusting parameters such as electromagnetic wave power density, operating frequency, output pulse width, and pulse repetition frequency, the goal of forced stopping a speedboat can be achieved. This is a low-risk, non-contact disposal method. The development of related technologies and equipment can significantly improve law enforcement flexibility and reduce risks to the lives of law enforcement personnel. Summary of the Invention

[0003] The technical problems to be solved by the present invention are:

[0004] To develop a speedboat emergency stop system and provide a basis for selecting microwave frequency, pulse width, and microwave power, this paper proposes a system and method for testing the microwave sensitivity characteristics of speedboat outboard motors. This system utilizes a fully solid-state, high-power microwave source with adjustable frequency, pulse width, output power, and repetition rate, along with a rotatable test bench for monitoring the outboard motor's ignition signal and propeller speed. These tests are designed to assess the microwave sensitivity characteristics of speedboat outboard motors.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A microwave sensitivity characteristics testing system for a speedboat outboard engine, characterized by comprising:

[0007] A microwave radiation source for generating microwave signals with different and adjustable operating parameters; the operating parameters include microwave frequency, pulse width, microwave power and repetition rate;

[0008] Test and measurement equipment, used to simulate the operating environment of a speedboat outboard engine and to receive and measure microwave signals;

[0009] A control device, used to control the microwave signal to generate microwave signals with different working parameters;

[0010] The status monitoring device is used to monitor the status of the outboard motor of a speedboat.

[0011] A further technical solution of the present invention is as follows: the microwave radiation source includes multiple radiation channels, each of which generates and emits radiation signals of different frequency bands.

[0012] A further technical solution of the present invention is as follows: the radiation channel includes a microwave signal source, a primary power amplifier, a final power amplifier, and a directional antenna connected in sequence; the output end of the microwave signal source is connected to the primary power amplifier; the output end of the primary power amplifier is connected to the final power amplifier; the final power amplifier is connected to the directional antenna; the microwave signal source, the primary power amplifier, and the final power amplifier are connected to the control device.

[0013] A further technical solution of the present invention: the different frequency bands include 1GHz-4GHz, 4GHz-8GHz, and 8GHz-18GHz.

[0014] A further technical solution of the present invention is that the primary power amplifier and the final power amplifier adopt a solid-state amplifier system.

[0015] A further technical solution of the present invention: the directional antenna is a broadband radiation antenna.

[0016] A further technical solution of the present invention is as follows: the test and measurement device includes a speedboat outboard engine environment simulation device and a microwave measurement device; the speedboat outboard engine environment simulation device includes a turntable, a water tank, and a speedboat outboard engine, the speedboat outboard engine is placed in the water tank, and the water tank is placed on the turntable; the microwave measurement device includes a horn antenna and a microwave signal processing module, the horn antenna receives microwave signals near the speedboat outboard engine, and the microwave signal processing module is used to calculate parameters of the received microwave signals.

[0017] A further technical solution of the present invention is as follows: the state monitoring device includes an ignition signal measuring device and a propeller speed measuring device, the propeller speed measuring device is used to measure the speed of the speedboat outboard motor, and the ignition signal measuring device is used to measure the ignition signal of the speedboat outboard motor.

[0018] A method for testing microwave sensitivity characteristics of a speedboat outboard motor, comprising:

[0019] The microwave radiation source generates microwave signals with different working parameters and radiates them through the directional antenna;

[0020] measuring working parameters of the received microwave signal by a microwave measuring device;

[0021] Measure the status of the speedboat outboard motor through the condition monitoring device;

[0022] By observing the state changes of the speedboat outboard motor and combining it with the parameters of the received microwave signal, the microwave signal to which the speedboat outboard motor is sensitive is obtained.

[0023] A further technical solution of the present invention is as follows: the operating parameters of the speedboat outboard motor by observing the state change and receiving the microwave signal are specifically:

[0024] When the ignition signal of the outboard motor of the speedboat suddenly changes, the microwave signal received at this time is its sensitive microwave, and the working parameters corresponding to the microwave are sensitive microwave parameters.

[0025] The beneficial effects of the present invention are:

[0026] The present invention provides a speedboat outboard engine microwave sensitivity test system and method. The system comprises a microwave radiation source, a test and measurement device, a control device, and a status monitoring device. The microwave radiation source generates adjustable microwave signals with different operating parameters; the test and measurement device receives and measures the microwave signals; the control device controls the microwave signals to generate microwave signals with different operating parameters; and the status monitoring device monitors the status of the speedboat outboard engine and, based on the measured microwave signals, determines the speedboat outboard engine's microwave sensitivity.

[0027] The method of the invention can quickly and accurately obtain the microwave sensitivity characteristics of the speedboat outboard engine. The test system is simple and easy to operate, which fills the gap in the prior art in testing the microwave sensitivity characteristics of the speedboat outboard engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like parts throughout the drawings.

[0029] Figure 1 The present invention provides a test system for the frequency sensitivity characteristics of a speedboat outboard motor.

[0030] Figure 2 Diagram of the structure of the microwave irradiation source.

[0031] Figure 3 Flowchart of the method for testing the frequency sensitivity characteristics of a speedboat outboard motor according to the present invention.

[0032] 1-Microwave radiation source; 2-Test and measurement device; 3-Display and control device. DETAILED DESCRIPTION

[0033] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0034] The present invention provides a test system for the frequency sensitivity characteristics of outboard motors of speedboats. Figure 1 As shown, it includes a microwave radiation source 1, a test and measurement device 2, and a display and control device 3.

[0035] A microwave radiation source 1 is configured to generate microwave signals with various adjustable operating parameters, including microwave frequency, pulse width, microwave power, and repetition rate. The microwave radiation source 1 comprises multiple radiation channels, each of which generates and transmits radiation signals in a different frequency band. The radiation channels comprise a microwave signal source, a primary power amplifier, a final power amplifier, and a directional antenna, all connected in sequence. The output of the microwave signal source is connected to the primary power amplifier, the output of the primary power amplifier is connected to the final power amplifier, and the final power amplifier is connected to the directional antenna. The microwave signal source, primary power amplifier, and final power amplifier are connected to the control device.

[0036] Test and measurement device 2 is used to simulate the operating environment of a speedboat outboard engine and receive and measure microwave signals. It includes a speedboat outboard engine environment simulator and a microwave measurement device. The speedboat outboard engine environment simulator includes a turntable, a water tank, and a speedboat outboard engine. The speedboat outboard engine is placed in the water tank, which is placed on the turntable. The microwave measurement device includes a horn antenna and a microwave signal processing module. The horn antenna receives microwave signals near the speedboat outboard engine, and the microwave signal processing module calculates parameters of the received microwave signals.

[0037] The display and control device 3 includes a control device and a status monitoring device. The control device is used to control the microwave signal to generate microwave signals with different working parameters; the status monitoring device is used to monitor the status of the speedboat outboard motor.

[0038] Specifically, the microwave irradiation source 1 can generate microwave pulses with adjustable frequencies from 1 GHz to 18 GHz, adjustable pulse widths from 200 ns to 4 μs, repetition rates from 1 to 200 Hz, and adjustable equivalent radiated power from 1 MW to 1 GW. Multiple frequency bands can be spliced together to achieve full coverage of the 1 GHz to 18 GHz frequency band. The microwave irradiation source power amplifiers all utilize solid-state amplifiers.

[0039] Specifically, the test and measurement device 2 has a turntable that can adjust the direction of the speedboat, and has a measuring device for the speedboat outboard motor operating characteristics such as speed, fuel supply, etc., and simultaneously performs real-time measurement of microwave power.

[0040] Specifically, the display and control device 3 can control the working parameters of the microwave source 1, monitor the working status of the speedboat, and test the irradiation power of the microwave.

[0041] Specifically, the condition monitoring device includes an ignition signal measuring device and a propeller speed measuring device. The ignition signal measuring device is used to measure the ignition signal of the speedboat outboard motor. The ignition signal is measured by using an oscilloscope to measure the signal line output from the speedboat outboard motor's ignition signal to the high-voltage transformer via a high-voltage probe. The propeller speed measuring device is used to measure the speed of the speedboat outboard motor.

[0042] Preferably, the microwave irradiation source structure is as follows Figure 2 As shown in the figure, it uses three frequency bands to achieve full coverage of the 1GHz to 18GHz frequency band. The first frequency band covers 1GHz to 4GHz; the second frequency band covers 4GHz to 8GHz; and the third frequency band covers 8GHz to 18GHz. A microwave signal source first generates microwaves with the required point frequency, pulse width, and repetition rate. The microwave power is then amplified by a primary microwave power amplifier and a final microwave power amplifier. Finally, the antenna radiates microwave pulses with an equivalent radiated power of 1MW to 1GW.

[0043] The primary and final power amplifiers utilize solid-state power amplifier technology. Solid-state amplifiers offer wide operating bandwidth and a wide range of microwave power and pulse width adjustment. The system adjusts the microwave power of the microwave irradiation source by adjusting the microwave signal source and the output power of the primary power amplifier.

[0044] Preferably, the turntable in the test and measurement device 2 can realize 0° to 360° rotation to realize irradiation of the speedboat outboard motor with microwaves of different incidences.

[0045] The present invention also provides a method for testing microwave sensitivity characteristics of outboard motors of speedboats. Figure 3 As shown. It includes the following steps:

[0046] Step 1: The microwave radiation source generates microwave signals with different operating parameters and radiates them through the directional antenna;

[0047] Preferably, microwave pulses between 1MW and 1GW are generated, and the operating parameters of the microwave signal: microwave frequency, pulse width, microwave power and repetition rate are adjustable;

[0048] Step 2: Measure the working parameters of the received microwave signal using a microwave measuring device;

[0049] Preferably, the microwave measurement device receives microwave signals through a horn antenna and calculates the received microwave signals through a microwave signal processing module to obtain parameters of the microwave signals. The microwave measurement system is used to measure parameters such as real-time microwave power density, pulse width, and repetition frequency.

[0050] Step 3: Measure the status of the speedboat outboard motor through the condition monitoring device;

[0051] Preferably, the outboard motor can adjust the direction of the speedboat when the turntable rotates so that the speedboat receives the microwave signal emitted by the microwave radiation source;

[0052] Step 4: Obtain the microwave signal to which the speedboat outboard motor is sensitive by observing the state change of the speedboat outboard motor and combining it with the working parameters of the received microwave signal.

[0053] Preferably, the ignition signal measuring device and the propeller speed measuring device realize the detection of the working status of the speedboat outboard motor.

[0054] When the ignition signal of the outboard motor of the speedboat suddenly changes, the microwave signal received at this time is its sensitive microwave, and the working parameters corresponding to the microwave are sensitive microwave parameters.

[0055] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present invention, and these modifications or replacements should all be included in the scope of protection of the present invention.

Claims

1. A microwave sensitivity test system for outboard motors of speedboats, characterized in that include: A microwave radiation source, used to generate microwave signals with different working parameters and adjustable; The operating parameters include microwave frequency, pulse width, microwave power and repetition frequency; The microwave radiation source includes multiple radiation channels, each of which generates and transmits radiation signals of different frequency bands; The radiation channel includes a microwave signal source, a primary power amplifier, a final power amplifier, and a directional antenna connected in sequence; the output end of the microwave signal source is connected to the primary power amplifier; the output end of the primary power amplifier is connected to the final power amplifier; and the final power amplifier is connected to the directional antenna; The microwave signal source, primary power amplifier, and final power amplifier are connected to a control device; the different frequency bands include 1GHz-4GHz, 4GHz-8GHz, and 8GHz-18GHz; the primary power amplifier and final power amplifier adopt solid-state amplifier systems; the directional antenna is a broadband radiating antenna; A test and measurement device for simulating the operating environment of a speedboat outboard engine and receiving and measuring microwave signals; the test and measurement device includes a speedboat outboard engine environment simulation device and a microwave measurement device; the speedboat outboard engine environment simulation device includes a turntable, a water tank, and a speedboat outboard engine, the speedboat outboard engine being placed in the water tank, which is placed on the turntable; the microwave measurement device includes a horn antenna and a microwave signal processing module, the horn antenna receiving microwave signals near the speedboat outboard engine, the microwave signal processing module calculating parameters of the received microwave signal, and the turntable rotating from 0° to 360° to achieve irradiation of the speedboat outboard engine with microwaves of varying incidence; A control device, used to control the microwave signal to generate microwave signals with different working parameters; A status monitoring device is used to monitor the status of a speedboat outboard motor; the status monitoring device includes an ignition signal measuring device and a propeller speed measuring device, the propeller speed measuring device is used to measure the speed of the speedboat outboard motor, and the ignition signal measuring device is used to measure the ignition signal of the speedboat outboard motor.

2. A method for testing microwave sensitivity characteristics of a speedboat outboard engine, characterized in that: include: The microwave radiation source generates microwave signals with different working parameters and radiates them through the directional antenna; measuring working parameters of the received microwave signal by a microwave measuring device; Measure the status of the speedboat outboard motor through the condition monitoring device; By observing the state changes of the speedboat outboard engine and combining the parameters of the received microwave signal, the microwave signal that the speedboat outboard engine is sensitive to is obtained; specifically: When the ignition signal of the outboard motor of the speedboat suddenly changes, the microwave signal received at this time is its sensitive microwave, and the working parameters corresponding to the microwave are sensitive microwave parameters.

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