CN110166162B - Hand-held pressing equipment - Google Patents
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- CN110166162B CN110166162B CN201910438860.6A CN201910438860A CN110166162B CN 110166162 B CN110166162 B CN 110166162B CN 201910438860 A CN201910438860 A CN 201910438860A CN 110166162 B CN110166162 B CN 110166162B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/80—Jamming or countermeasure characterized by its function
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K2203/00—Jamming of communication; Countermeasures
- H04K2203/10—Jamming or countermeasure used for a particular application
- H04K2203/22—Jamming or countermeasure used for a particular application for communication related to vehicles
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Abstract
The invention discloses handheld pressing equipment, which comprises a shell provided with a power switch and a pressing switch, wherein an interference source module, a radio frequency module connected with the pressing switch and a power module connected with the power switch are arranged in the shell; the interference source module comprises two paths of noise generation units, and the second frequency synthesizer receives the Gaussian white noise source signal and the chaotic interference noise source signal and synthesizes the signals into a suppressed interference signal; the method comprises the steps of sending a suppression interference signal to a voltage-controlled oscillator, receiving the suppression interference signal by the voltage-controlled oscillator, amplifying the suppression interference signal by a first power amplifier, sending the suppression interference signal to a third filter amplifier for filtering, inputting the suppression interference signal after filtering into a second power amplifier, inputting the suppression interference signal after amplification into a logarithmic interference antenna for high-gain amplification and radiation in the air, and effectively controlling the 'black-flying' unmanned aerial vehicle; the shell comprises a pressing body, the pressing body is connected with a handle, and a power switch button and a pressing switch button are arranged at the joint.
Description
Technical Field
The invention belongs to the field of unmanned aerial vehicle pressing, and relates to handheld pressing equipment.
Background
In recent years, the market of unmanned aerial vehicles is rapidly growing, and large-scale unmanned aerial vehicles are produced by manufacturers such as great Xinjiang, extreme flying and zero-degree intelligent control
Research and development and production enable the civil (commercial) unmanned aerial vehicle to have high cost performance and higher popularity, and the unmanned aerial vehicle system is widely applied to various industries, so that the work of various industries and the daily life of people are greatly enriched.
However, domestic supervision of unmanned aerial vehicles, particularly "black flight" and "fly around" unmanned aerial vehicles, is still in a blank state.
The proportion of black flight and messy flight of small, micro and nano unmanned aerial vehicles flying in the air is about 90 percent, which gives air supervision
The safety in the air and the pipes causes great hidden troubles, which seriously affects the landing of the airplane and disturbs the safety of public activities, key infrastructures, government areas and large conferences.
Disclosure of Invention
The invention aims to provide a novel liquid crystal display device: the utility model provides a hand-held type suppression equipment has solved the blank problem of black unmanned aerial vehicle supervision that flies.
The technical scheme adopted by the invention is as follows:
the handheld pressing equipment comprises a shell provided with a power switch and a pressing switch, wherein an interference source module, a radio frequency module connected with the pressing switch and a power module connected with the power switch are arranged in the shell; wherein, the interference source module includes two way noise generation units: the first path of noise generating unit comprises an M sequence generator, and the M sequence generator generates a pseudo-sequence digital signal and carries out filtering processing through an FIR filtering module; the FIR filtering module sends the processed pseudo-sequence digital signal to a frequency synthesizer; the single-channel DDS module generates an original digital signal and sends the original digital signal to the first frequency synthesizer; the first frequency synthesizer receives signals of the FIR filtering module and the single-channel DDS module, and after synthesis, the first frequency synthesizer sends a digital white noise signal to the first D/A conversion module; the first filter amplifier receives the analog white noise signal, amplifies the analog white noise signal into a Gaussian white noise source signal and sends the Gaussian white noise source signal to the second frequency synthesizer; the second path of noise generating unit generates two groups of chaotic interference signals through the chaotic sequence generator; the two groups of chaotic interference signals are connected with a linear converter; the linear converter synthesizes two groups of chaotic interference signals and sends the chaotic interference signals to the second D/A conversion module, and the second D/A conversion module receives the two groups of chaotic interference signals after synthesis, converts the chaotic interference signals into analog interference noise signals and sends the analog interference noise signals to the second filter amplifier; the second filter amplifier receives the analog interference noise signal, amplifies the analog interference noise signal into a chaotic interference noise source signal and sends the chaotic interference noise source signal to the second frequency synthesizer; the second frequency synthesizer receives the Gaussian white noise source signal and the chaotic interference noise source signal and synthesizes the Gaussian white noise source signal and the chaotic interference noise source signal into a suppressed interference signal; the suppression interference signal is sent to the voltage-controlled oscillator, the voltage-controlled oscillator receives the suppression interference signal, the suppression interference signal is amplified through the first power amplifier and sent to the third filter amplifier for filtering processing, the suppression interference signal after filtering processing is sent to the second power amplifier, the suppression interference signal after amplification is sent to the logarithmic disturbance antenna for high-gain amplification radiation in the air, and therefore the 'black flying' unmanned aerial vehicle is effectively controlled.
According to the Ministry of industry and communications regulations for the division of radio frequencies in the people's republic of China, 840.5 MHz-845 MHz may be used for the uplink remote control link of the unmanned aircraft system. The 1430-1444 MHz frequency band can be used for downlink telemetering and information transmission links of the unmanned aircraft system. The 2408 MHz-2440 MHz frequency band can be used as a backup frequency band of an uplink remote control and downlink telemetering and information transmission link of an unmanned aircraft system, wherein the frequency band of GPS and BDS satellite positioning signals is L1:1575.42 +/-1.023 MHz, L2:1227.6 +/-10.23 MHz, L3:1176.45 +/-12 MHz, B1:1561.098 +/-2.046 MHz, B2:1207.6 +/-2.046 MHz and B3:1268.52 +/-10.23 MHz.
The invention aims to solve the problem of supervision blank of the black flying unmanned aerial vehicle; hand-held type suppression equipment core host computer designs for the integration, through switch and suppression switch, each way of suppression source of interference source module automatic control and power amplifier module, 430MHz ~ 440MHz can give birth to simultaneously, 2394MHz ~ 2489MHz and 5719MHz ~ 5856MHz mainly used remote control and picture biography signal block formula and disturb, 1100MHz ~ 1300MHz, 1558MHz ~ 1592MHz mainly used GPS and BDS satellite positioning signal block formula and disturb, block unmanned aerial vehicle flight control system and signal transmission system effectively, thereby make it lose flight control instruction and satellite positioning information, make it unable normal flight, can produce according to unmanned aerial vehicle's design difference and return to the journey, the management and control effect of landing and falling. And the unmanned aerial vehicle is peaceful in the sky, so that the monitoring maneuverability of the 'black flying' unmanned aerial vehicle is improved, and the safety of a low-altitude airspace in an area is guaranteed.
Further, the radio frequency module comprises a log interference antenna.
Further, the power module comprises a power management board and a lithium battery pack.
Furthermore, the number of the chaotic sequence generators is 6, the chaotic sequence generators are averagely divided into two groups which are respectively connected with the first accumulator and the second accumulator to generate two groups of chaotic interference signals, so that the linear transformer outputs discrete white gaussian noise, and continuous white gaussian noise is obtained through the second D/A converter, so that the optimal chaotic suppression interference noise can be obtained.
Further, the frequency discriminator is connected with the frequency source database and is also connected with the second frequency synthesizer. And a frequency divider is arranged between the voltage-controlled oscillator and the first power amplifier and is connected with a frequency discriminator through a protection circuit.
The frequency discriminator firstly converts the frequency modulation wave signal into frequency modulation wave with the envelope changing according to the original modulation signal rule, then detects the modulation signal from the frequency modulation wave, and finally sends the modulation signal to the second frequency synthesizer.
Further, a second frequency synthesizer receives the Gaussian white noise source signal and the chaotic interference noise source signal and synthesizes the Gaussian white noise source signal and the chaotic interference noise source signal into a suppressed interference signal; the suppressed interference signals are sent to a first power amplifier, a third filter and a second power amplifier, and finally high-gain amplification radiation is carried out on the suppressed interference signals through a logarithmic interference antenna to the air, so that the 'black flying' unmanned aerial vehicle is effectively controlled.
Further, the casing includes the suppression body, the handle is connected to the suppression body, and the junction is provided with switch power button and suppression shift knob. When the multifunctional electric heating cooker is used, an operator holds the handle, the finger joints can touch the two switch buttons, and the operation is very convenient by one hand.
Further, the casing includes the barrel, the barrel is connected the rifle body handle, and the junction is provided with the ring hole, set up the suppression switch button in the ring hole. And a nameplate placing port is arranged on the outer wall of the gun barrel. When the pressing switch is used, an operator holds the gun body handle, finger joints penetrate through the finger ring holes to touch the pressing switch keys, and single-hand operation is very convenient. And to the pressing equipment of different models, place the data plate in the data plate that the barrel outer wall set up places the mouth in.
In conclusion, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. hand-held type pressing equipment, hand-held type pressing equipment core host computer designs as an organic whole, through switch and pressing switch, each way of pressing source of interference source module automatic control and power amplifier module, can give birth to 430MHz ~ 440MHz simultaneously, 2394MHz ~ 2489MHz and 5719MHz ~ 5856MHz mainly used remote control and picture biography signal block formula interference, 1100MHz ~ 1300MHz, 1558MHz ~ 1592MHz mainly used GPS and BDS satellite positioning signal carries out block formula interference, block unmanned aerial vehicle flight control system and signal transmission system effectively, thereby make it lose flight control instruction and satellite positioning information, make it unable normal flight, can produce the management and control effect of returning to the boat according to unmanned aerial vehicle's design difference, descending and falling.
2. The pressing device has the advantages that an operator can operate the pressing device with one hand, and the pressing device is strong in maneuverability, small in size and light in weight.
3. The invention discloses an effective control distance: 0-1000 m (covering the whole low-altitude open area).
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings which are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for a person skilled in the art, without inventive effort, other relevant drawings can be obtained from these drawings, in which:
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a first structural diagram of the present invention;
FIG. 3 is a second architecture diagram of the present invention;
fig. 4 is a flow chart of the radio frequency module of the present invention.
The labels in the figure are: 1-pressing body, 2-handle, 3-power switch button, 4-pressing switch button, 5-barrel, 6-gun body handle, 7-pressing switch button and 8-nameplate placing port.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention, i.e., the described embodiments are only a subset of the invention and not all embodiments. The components of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the invention without making any creative effort, fall within the scope of protection of the invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The scheme is that the hand-held pressing equipment comprises a shell provided with a power switch and a pressing switch, wherein an interference source module, a radio frequency module connected with the pressing switch and a power module connected with the power switch are arranged in the shell; wherein, the interference source module includes two way noise generation units: the first path of noise generating unit comprises an M sequence generator, and the M sequence generator generates a pseudo-sequence digital signal and carries out filtering processing through an FIR filtering module; the FIR filtering module sends the processed pseudo-sequence digital signal to a frequency synthesizer; the single-channel DDS module generates an original digital signal and sends the original digital signal to the first frequency synthesizer; the first frequency synthesizer receives signals of the FIR filtering module and the single-channel DDS module, and after synthesis, the first frequency synthesizer sends a digital white noise signal to the first D/A conversion module; the first filter amplifier receives the analog white noise signal, amplifies the analog white noise signal into a Gaussian white noise source signal and sends the Gaussian white noise source signal to the second frequency synthesizer; the second path of noise generating unit generates two groups of chaotic interference signals through the chaotic sequence generator; the two groups of chaotic interference signals are connected with a linear converter; the linear converter synthesizes two groups of chaotic interference signals and sends the chaotic interference signals to the second D/A conversion module, and the second D/A conversion module receives the two groups of chaotic interference signals after synthesis, converts the chaotic interference signals into analog interference noise signals and sends the analog interference noise signals to the second filter amplifier; the second filter amplifier receives the analog interference noise signal, amplifies the analog interference noise signal into a chaotic interference noise source signal and sends the chaotic interference noise source signal to the second frequency synthesizer; the second frequency synthesizer receives the Gaussian white noise source signal and the chaotic interference noise source signal and synthesizes the Gaussian white noise source signal and the chaotic interference noise source signal into a suppressed interference signal; the suppression interference signal is sent to the voltage-controlled oscillator, the voltage-controlled oscillator receives the suppression interference signal, the suppression interference signal is amplified through the first power amplifier and sent to the third filter amplifier for filtering processing, the suppression interference signal after filtering processing is input into the second power amplifier, the suppression interference signal after amplification is input into the logarithmic interference antenna for high-gain amplification radiation in the air, and therefore the 'black flight' unmanned aerial vehicle is effectively controlled.
The radio frequency module comprises a logarithmic disturbance antenna. The power module comprises a power management board and a lithium battery pack. The number of the chaotic sequence generators is 6, the chaotic sequence generators are averagely divided into two groups which are respectively connected with a first accumulator and a second accumulator to generate two groups of chaotic interference signals. The frequency discriminator is connected with the frequency source database and is also connected with the second frequency synthesizer. And a frequency divider is arranged between the voltage-controlled oscillator and the first power amplifier and is connected with a frequency discriminator through a protection circuit.
Features and properties of the inventive version are described in further detail below in connection with the embodiment of fig. 1-3.
Example one
A preferred embodiment of the present invention provides a hand-held pressing apparatus, as shown in fig. 2; the total length of the handheld pressing equipment is 45CM, and the total width is 10.7 CM; the length of the handle 2 is 12 cm, so that the convenience of operating the power switch button 3 and pressing the switch button 4 by one hand is ensured;
when in work: hand-held type suppression equipment core host computer designs for the integration, through switch and suppression switch, each way of suppression source of interference source module automatic control and power amplifier module, 430MHz ~ 440MHz can give birth to simultaneously, 2394MHz ~ 2489MHz and 5719MHz ~ 5856MHz mainly used remote control and picture biography signal block formula and disturb, 1100MHz ~ 1300MHz, 1558MHz ~ 1592MHz mainly used GPS and BDS satellite positioning signal block formula and disturb, block unmanned aerial vehicle flight control system and signal transmission system effectively, thereby make it lose flight control instruction and satellite positioning information, make it unable normal flight, can produce according to unmanned aerial vehicle's design difference and return to the journey, the management and control effect of landing and falling. And the unmanned aerial vehicle is peaceful in the sky, so that the monitoring maneuverability of the 'black flying' unmanned aerial vehicle is improved, and the safety of a low-altitude airspace in an area is guaranteed.
Example two
The invention provides a handheld pressing device, as shown in fig. 3; by adopting a pistol type structure, an operator holds the pistol body handle 6, the finger joints penetrate through the finger ring holes to touch the pressing switch keys 7, and the single-hand operation is very convenient. The power supply key with the structure is arranged at any operable position; because the power supply key is operated to be a switch once when in use; and to the pressing equipment of different models, place the data plate in the data plate that the barrel outer wall set up places the mouth in.
When in work: as shown in fig. 4, considering the frequency range of the signal source from 1GHz to 20GHz, it is difficult to perform direct output by using a phase-locked loop, so that 10GHz to 20GHz is output by using a loop, and the switching is performed by switching the frequency, when 10G to 20G is output, the switch gates the direct output, when 3G to 10G is output, the switch gates the frequency dividing path, and the variable frequency divider can implement frequency division 1, frequency division 2, frequency division 4, and frequency division 8 according to different levels of different control ports, and can output 3000MHz at the lowest and 20GHz at the highest, thereby meeting the requirement of actual output bandwidth. The variable attenuator acts to regulate the output power.
EXAMPLE III
On the basis of embodiment 2, phase noise analysis is performed; according to practical tests, when the phase discrimination frequency of the HMC704 is 100MHz, the bottom noise of the main loop fractional frequency division mode is-216 +10log 10000000-136 dBc/Hz, and when the highest frequency of the output is 15GHz, the phase noise deterioration multiple N is 15000/100-150, 20log 150-43, -136+ 43-93 dBc/Hz @10 KHz. According to a VCO manual, the phase noise is-70 dBc/Hz @10KHz, and the loop bandwidth presents high-pass filter characteristics to the phase noise of the VCO, so that the influence of the phase noise of the VCO is reduced, the loop bandwidth is large, the loop bandwidth is primarily considered to be 300KHz, the noise introduced by the VCO is-70-20 log30 ═ 98dBc/Hz @10KHz, and in addition, the reference signal can be deduced from the reference signal, and the final result of the superposition of the two main phase noises of the phase-locked loop can reach-85 dBc/Hz @10 KHz.
Example four
On the basis of example 3, a stray analysis was performed: the phase-locked loop mainly comprises the following stray sources, wherein reference frequency leakage, phase detection frequency leakage, fractional frequency stray and power supply stray are provided, the stray of the phase detection frequency leakage is analyzed below, the in-band stray of the phase detection frequency leakage is-52 dBc to-60 dBc according to an HMC704 manual, 100MHz phase detection is adopted, and the step is 1 MHz. When the output frequency is near the integral multiple of the phase discrimination frequency, the nearest decimal frequency division stray of 0.25MHz exists, the stray point under the decimal frequency division mode falls into the loop bandwidth and cannot be filtered, which is the worst condition, the stray rejection is about-52 dBc, the loop filter has higher reference rejection to 100MHz, therefore, as long as the stray processing on the power supply is good enough, the stray rejection of the worst point can reach-52 dBc
EXAMPLE five
On the basis of example 4, output power analysis was performed: according to the PDF of the variable frequency divider UXB20P, when the input frequency is 10 GHz-20 GHz, the output power of the division 1 and division 2 is in the range of-2 dBm-0 dBm, the gain of the post-stage amplifier HMC565 is 20dB, the P-1 is 12dBm, the gain of the final-stage amplifier HMC634 is about 20dB, the output P-1 is 22.7dBm, and the operating frequency is 5G-20G, therefore, when the output frequency is 4.5G-15G, the amplifier is saturated, the output power is about 22dBm, the total insertion loss of the final-stage switch filter is 8dB, the final output power is about 14dBm, and the requirement is met, when the output frequency is 3G-4.5G, the final output power is not in the operating frequency range of the HMC634, therefore, the output power of the HMC788 is selected, the output P-1 is 21dBm, and the output power also meets the requirement.
EXAMPLE six
On the basis of the embodiment 4, switching time analysis is carried out; according to the measured data, when the phase is identified at 100MHz, the loop bandwidth is several hundred KHz, the frequency switching time of the phase-locked loop is less than 1ms, and the power consumption analysis table 1 is obtained:
TABLE 1
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, which is to be construed as limiting the appended claims.
Claims (9)
1. Hand-held type pressing equipment, its characterized in that: the device comprises a shell provided with a power switch and a pressing switch, wherein an interference source module, a radio frequency module connected with the pressing switch and a power module connected with the power switch are arranged in the shell;
wherein, the interference source module includes two way noise generation units:
the first path of noise generating unit comprises an M sequence generator, and the M sequence generator generates a pseudo-sequence digital signal and carries out filtering processing through an FIR filtering module; the FIR filtering module sends the processed pseudo-sequence digital signal to a frequency synthesizer; the single-channel DDS module generates an original digital signal and sends the original digital signal to the first frequency synthesizer; the first frequency synthesizer receives signals of the FIR filtering module and the single-channel DDS module, and after synthesis, the first frequency synthesizer sends a digital white noise signal to the first D/A conversion module; the first filter amplifier receives the analog white noise signal, amplifies the analog white noise signal into a Gaussian white noise source signal and sends the Gaussian white noise source signal to the second frequency synthesizer;
the second path of noise generating unit generates two groups of chaotic interference signals through the chaotic sequence generator; the two groups of chaotic interference signals are connected with a linear converter; the linear converter synthesizes two groups of chaotic interference signals and sends the chaotic interference signals to the second D/A conversion module, and the second D/A conversion module receives the two groups of chaotic interference signals after synthesis, converts the chaotic interference signals into analog interference noise signals and sends the analog interference noise signals to the second filter amplifier; the second filter amplifier receives the analog interference noise signal, amplifies the analog interference noise signal into a chaotic interference noise source signal and sends the chaotic interference noise source signal to the second frequency synthesizer;
the second frequency synthesizer receives the Gaussian white noise source signal and the chaotic interference noise source signal and synthesizes the Gaussian white noise source signal and the chaotic interference noise source signal into a suppressed interference signal; and sending the suppression interference signal to a voltage-controlled oscillator, receiving the suppression interference signal by the voltage-controlled oscillator, amplifying the suppression interference signal by a first power amplifier, sending the suppression interference signal to a third filter amplifier for filtering, sending the suppression interference signal after filtering to a second power amplifier, sending the suppression interference signal after amplification to a logarithmic interference antenna for high-gain amplification and radiation in the air.
2. The hand held press apparatus of claim 1, wherein: the radio frequency module comprises a logarithmic disturbance antenna.
3. The hand held press apparatus of claim 1, wherein: the power module comprises a power management board and a lithium battery pack.
4. The hand held press apparatus of claim 1, wherein: the number of the chaotic sequence generators is 6, the chaotic sequence generators are averagely divided into two groups which are respectively connected with a first accumulator and a second accumulator to generate two groups of chaotic interference signals.
5. The hand held press apparatus of claim 1, wherein: the frequency discriminator is connected with the frequency source database and is also connected with the second frequency synthesizer.
6. The hand held press apparatus of claim 5, wherein: and a frequency divider is arranged between the voltage-controlled oscillator and the first power amplifier and is connected with a frequency discriminator through a protection circuit.
7. The hand held press apparatus of claim 1, wherein: the shell comprises a pressing body (1), the pressing body (1) is connected with a handle (2), and a power switch button (3) and a pressing switch button (4) are arranged at the joint.
8. The hand held press apparatus of claim 1, wherein: the shell comprises a gun barrel (5), the gun barrel (5) is connected with a gun body handle (6), a finger ring hole is formed in the joint, and a pressing switch key (7) is arranged in the finger ring hole.
9. The hand held press apparatus of claim 8, wherein: and a nameplate placing port (8) is arranged on the outer wall of the gun barrel (5).
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| CN112367142A (en) * | 2020-10-29 | 2021-02-12 | 黄凯 | Interference signal generating device |
| CN117411587A (en) * | 2023-10-30 | 2024-01-16 | 南京新频点电子科技有限公司 | Intelligent enhanced full-frequency-band examination room wireless signal shielding device |
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