CN211047242U - Frequency spectrum monitoring and wireless networking equipment - Google Patents
Frequency spectrum monitoring and wireless networking equipment Download PDFInfo
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- CN211047242U CN211047242U CN202020282903.4U CN202020282903U CN211047242U CN 211047242 U CN211047242 U CN 211047242U CN 202020282903 U CN202020282903 U CN 202020282903U CN 211047242 U CN211047242 U CN 211047242U
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Abstract
The utility model discloses a frequency spectrum monitoring and wireless networking device, which comprises a frequency monitoring device, a power adapter, an antenna and a battery box, wherein the power adapter, the antenna and the battery box are electrically connected with the frequency monitoring device; the frequency monitoring equipment comprises a mainframe box, a preselector unit, a front-end unit and a digital processing unit, wherein the preselector unit, the front-end unit and the digital processing unit are arranged on the inner side of the mainframe box and are respectively communicated with the ARM platform main control unit through a bus controller; the output RF signal of the preselector unit is connected into a front-end unit, and the intermediate frequency signal of the front-end unit is connected into a digital processing unit; the ARM platform main control unit is arranged on the inner surface of the front panel of the mainframe box; the ARM platform main control unit is in communication connection with the voice module and the main control bus controller; the utility model discloses a frequency spectrum monitoring and wireless networking equipment can realize its remote control telemetering measurement, realizes real-time supervision, quick search, spectral analysis, data analysis, system management and report form function to wireless signal; the frequency monitoring equipment has higher receiving sensitivity and is combined with a matched antenna to form a wireless monitoring system.
Description
Technical Field
The utility model relates to a frequency spectrum monitoring and wireless network deployment test equipment belongs to frequency spectrum monitoring facilities technical field.
Background
The frequency monitoring equipment is wireless monitoring equipment working in a frequency range of 100 kHz-3.6 GHz, and mainly realizes search, monitoring and analysis of wireless signals, evaluation and prediction of wireless networking state and the like; basic data of a real-time electromagnetic environment are provided for field operation and maintenance guarantee of the wartime and peacetime communication equipment, maintenance guarantee and training activities of operators can be efficiently carried out in real time, and the operators are guided to take proper technical countermeasures and guarantee the safety of the operators under various electromagnetic interference conditions; the frequency monitoring equipment in the prior art is simple in structure and is difficult to be suitable for acquiring real-time electromagnetic environment of communication equipment in wartime and at ordinary times.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the utility model provides a spectrum monitoring and wireless networking device, which can realize remote control and remote measurement of the device, and realize the functions of real-time monitoring, quick search, spectrum analysis, data analysis, system management and report of wireless signals; the frequency monitoring equipment has higher receiving sensitivity and is combined with a matched antenna to form a portable wireless monitoring system.
The utility model discloses a spectrum monitoring and wireless networking device, through the analysis to electromagnetic environment change, the frequency record of using, the stability of power and frequency isoparametric that wireless signal is located, can be effectual the steadiness of judgement network, the prediction and the diagnosis network fault state; the frequency monitoring equipment can also monitor, identify, judge and predict electromagnetic radiation, provide basic data of real-time battlefield electromagnetic environment for field maintenance guarantee during wartime and training, provide support for operators to efficiently develop maintenance guarantee and training activities in real time, and guide the operators to take proper technical countermeasures and guarantee the safety of the operators under various electromagnetic interference conditions; its frequency coverage is: 100 kHz-3.6 GHz; by configuring a plurality of specifications of receiving filters, 22 demodulation bandwidths (150 Hz to 10 MHz) are provided, and various test requirements are met; the whole frequency range is covered by 3 pairs of sub-band antenna combinations; the demodulation sensitivity and the frequency resolution are higher; the receiving dynamic range is large, and the received signals are quickly and accurately scanned within the dynamic range of 120 dB; the concrete structure is as follows: including frequency prison equipment, and with the power adapter that frequency prison equipment electricity is connected, its input voltage: 176 VAC-253 VAC50HZ +/-5 HZ; output voltage: 16.8VDC +/-0.1 VDC; antenna and battery box, battery box nominal capacity: 14.4 VDC/12 Ah; after the power is fully charged, the power can be continuously used for 6 hours by the frequency monitoring equipment; the frequency monitoring equipment comprises a mainframe box, a preselector unit, a front-end unit and a digital processing unit, wherein the preselector unit, the front-end unit and the digital processing unit are arranged on the inner side of the mainframe box and are respectively communicated with the ARM platform main control unit through a bus controller; each module is provided with a module controller, and the equipment realizes information interaction among all units in a bus control mode; the output RF signal of the preselector unit is connected into a front-end unit, and the intermediate frequency signal of the front-end unit is connected into a digital processing unit; the ARM platform main control unit is arranged on the inner surface of the front panel of the mainframe box; the ARM platform main control unit is in communication connection with the voice module and the main control bus controller; and an N-type, 50 omega antenna input interface arranged on the front panel; the antenna input interface is communicatively connected to a pre-selector unit; and a knob for changing the position of the cursor, setting the frequency value or configuration parameters; and a number key for inputting a middle frequency bandwidth value and having a second function key function; and function keys for function selection and enabling a second function of the keypad; the function keys comprise a networking monitoring F1 key, a frequency scanning F2 key, a digital scanning F3 key and a shift key F4 key; the touch display screen is used for clicking and configuring parameters; the touch display screen comprises a direct function area, a display area and a menu area; and a power switch for switching on and off; the earphone interface is used for the standard audio interface and is electrically connected with the voice module; the knob, the number keys, the function keys, the touch display screen, the power switch and the earphone interface are in communication connection with the ARM platform main control unit; the preselector unit comprises a preselector controller, a preselector bus controller and a preselector module, wherein the preselector bus controller is communicated with the preselector controller; the front-end unit comprises a front-end controller, a front-end bus controller communicated with the front-end controller, an intermediate frequency module, a first local oscillator, a second local oscillator, a third local oscillator and a self-checking signal generator; the digital processing unit comprises a digital processing module and a power supply module; after a wireless signal in a space is received from an antenna, large signal protection is carried out on equipment through an amplitude limiter and the equipment enters a preselector unit; the preselector module mainly comprises microwave devices such as a low-noise amplifier, a low-insertion-loss radio frequency switch, a low-insertion-loss filter and the like, and is used for selectively filtering and amplifying low noise of signals received from an antenna; the front end unit mainly comprises a broadband high-linearity mixer, a linear amplifier, a high-rectangular-coefficient intermediate frequency filter and other devices, and mainly completes linear frequency conversion, selective filtering and linear amplification output of monitoring signals; the intermediate frequency signals after the third frequency conversion are sent to a digital processing module for digital sampling, AD conversion and digital down conversion, and frequency spectrum data and demodulation information are output after Fourier conversion and demodulation; the main controller adopts an ARM architecture and completes control and information interaction of the preselector unit and the front-end unit through the universal 485 bus controller.
An interface board is arranged on the rear panel of the main case; the interface board comprises a standard network port for a network control terminal interface; the power supply interface is used for externally connecting a power supply adapter interface, is electrically connected with the interface of the battery box and can charge the battery box; the USB interface is used for externally storing the monitoring data and is externally connected with the interface of the mobile storage equipment; the battery pack interface is used for a battery box power supply interface and adopts a 15-core D-shaped connector; and an R232 interface for connecting with a serial remote control; and a BNC type 50 omega intermediate frequency output interface is adopted; the standard network port, the USB interface and the R232 interface are in communication connection with the ARM platform main control unit; the antenna comprises a handheld antenna base and a sub-band antenna arranged on the handheld antenna base; the sub-band antenna comprises a 100 kHz-200 MHz loading loop antenna, a 200 MHz-500 MHz loading loop antenna and a 500 MHz-3.6 GHz log periodic antenna; the sub-band antenna comprises a 100 kHz-200 MHz loading loop antenna, a 200 MHz-500 MHz loading loop antenna and a 500 MHz-3.6 GHz log periodic antenna, wherein the 100 kHz-200 MHz loading loop antenna adopts a passive mode: standing waves are less than 2.5; the gain is larger than-40 dB; an active mode: standing waves are less than 2.5; the gain is larger than-28 dB; the passive mode of the 200 MHz-500 MHz loading loop antenna is as follows: standing waves are less than 2.5; the gain is larger than-38 dB; an active mode: standing waves are less than 2.5; the gain is larger than-25 dB; 500 MHz-3.6 GHz log periodic antenna, passive mode: standing waves are less than 2.5, and gain is greater than 1 dB; an active mode: the standing wave is less than 2.5, and the gain is more than 8 dB.
The utility model discloses a spectrum monitoring and wireless networking equipment, its operating frequency range is 100 kHz-3.6 GHz, maximum input level is 10dBm, the frequency accuracy is 1 + - × -7, local oscillator setup time is 0.2ms, local oscillator phase noise is not more than-100 dBc/Hz @10kHz (ƒ =7929.7 MHz), local oscillator to external radiation is better than-90 dBm, typical value-105 dBm, intermediate frequency output frequency is 10.7MHz, intermediate frequency maximum bandwidth is 10MHz, intermediate frequency spurious is better than 100dBm, level accuracy is 1dB, noise coefficient is not more than 14dB in 20 MHz-3 GHz frequency range, noise coefficient is not more than 16dB in 3 GHz-3.6 GHz frequency range, mirror frequency suppression is better than 75dB, IP2 (stronger signal test) is better than 50dBm, IP3 (stronger signal test) is better than 5dBm, demodulation mode is AM, FM, USB, SB 5kHz, 63 dB, PU 63 dB, 20 kHz, 300 MHz, 10MHz, 20MHz, 10MHz, 300 MHz, 10MHz, 20MHz, 300 MHz, 20MHz, 10MHz, 60 MHz, 300 MHz, 10MHz, 300 MHz, 20MHz, 60 MHz, 10MHz, 300 MHz, 60 MHz, 300 MHz, 500MHz, 300 MHz, 60 MHz, 10MHz, 20MHz, 3 MHz, 20MHz, 2MHz, 3 MHz, 20MHz, 3 MHz.
Further, a frame is arranged on the inner side of the main case; and a bus bar is arranged on the frame.
Further, when the knob changes the cursor position, the frequency range of the change is 100 kHz-3.6 GHz.
Compared with the prior art, the frequency spectrum monitoring and wireless networking equipment of the utility model provides a wireless networking robustness evaluation function; the wireless network fault state can be predicted and diagnosed; provides a continuous monitoring frequency range of 100 k-3.6G; counting the signal occupancy rate; the system can monitor, measure and direct the targets at middle and close distances; has a receiving bandwidth of 22 Hz-10 MHz; the scanning speed is high, and the level amplitude is tested quickly and accurately within a specified dynamic range of the test level; the scanning mode comprises single-frequency measurement, frequency scanning, discrete scanning, digital scanning and networking monitoring.
Drawings
Fig. 1 is a schematic diagram of the front structure of the host of the present invention.
Fig. 2 is a schematic diagram of the back structure of the host of the present invention.
Fig. 3 is a schematic block diagram of the internal circuit of the host of the present invention.
Fig. 4 is a circuit block diagram of the digital processing unit of the present invention.
Fig. 5 is a schematic diagram of a shift-up icon according to the present invention.
Fig. 6 is a schematic diagram of a main menu of the present invention.
Fig. 7 is a schematic diagram of a menu area according to the present invention.
Fig. 8 is a schematic diagram of a frequency spectrum display according to the present invention.
Fig. 9 is a schematic diagram of frequency spectrum display of any frequency point.
Fig. 10 is a schematic diagram of level display according to the present invention.
Fig. 11 is a schematic diagram of index detection and display of the present invention.
Figure 12 illustrates the relationship between resolution and bandwidth.
Fig. 13 the utility model discloses a network monitoring menu schematic diagram.
Fig. 14 is a schematic diagram illustrating the name of a networking monitoring menu page of the present invention.
Figure 15 the utility model discloses a menu schematic diagram is set up in the monitoring of network deployment.
Fig. 16 the utility model discloses a network monitoring sets up menu page name explanation sketch map.
Figure 17 the utility model discloses a network deployment monitoring facilities's activation state schematic diagram.
Fig. 18 is a schematic diagram of a configuration information excel table according to the present invention.
Fig. 19 is a schematic diagram of a protocol transceiver of the present invention.
Fig. 20 is a schematic diagram of a protocol transceiver according to the present invention.
Fig. 21 is a schematic view of the networking monitoring-operation of the present invention.
Fig. 22 is a schematic diagram of networking monitor-frequency hopping analysis according to the present invention.
Fig. 23 is a schematic diagram illustrating the name of the interface between the networking monitor and the frequency hopping analysis of the present invention.
Fig. 24 illustrates a frequency hopping analysis-operation diagram of the present invention.
Fig. 25 is a schematic diagram of networking monitor-bandwidth deployment.
Fig. 26 is a schematic view of single frequency measurement of the present invention.
Figure 27 the utility model discloses a single-frequency measurement-index detects out the sketch map.
Fig. 28 is a schematic view of a digital scan according to the present invention.
Fig. 29 is a schematic view of the digital scanning interface name of the present invention.
Fig. 30 is a schematic view of the digital scanning-operation of the present invention.
Fig. 31 is a schematic diagram of digital scan-bandwidth expansion according to the present invention.
Fig. 32 is a schematic frequency scanning diagram of the present invention.
Fig. 33 is a schematic view of the frequency scanning interface name of the present invention.
Fig. 34 is a schematic diagram of a frequency scan configuration menu according to the present invention.
Fig. 35 is a schematic view of a frequency scan configuration menu interface name according to the present invention.
Fig. 36 is a schematic diagram of suppression scanning in frequency scanning according to the present invention.
Fig. 37 is a schematic view of the suppression scan interface name in frequency scanning according to the present invention.
Fig. 38 is a schematic diagram of frequency sweep-up sweep of the present invention.
Detailed Description
The spectrum monitoring and wireless networking device shown in fig. 1 and fig. 2 can effectively judge the robustness of the network and predict and diagnose the fault state of the network by analyzing parameters such as electromagnetic environment change, frequency recording, power and frequency stability and the like of the wireless signal; the frequency monitoring equipment can also monitor, identify, judge and predict electromagnetic radiation, provide basic data of real-time battlefield electromagnetic environment for field maintenance guarantee during wartime and training, provide support for operators to efficiently develop maintenance guarantee and training activities in real time, and guide the operators to take proper technical countermeasures and guarantee the safety of the operators under various electromagnetic interference conditions; its frequency coverage is: 100 kHz-3.6 GHz; by configuring a plurality of specifications of receiving filters, 22 demodulation bandwidths (150 Hz to 10 MHz) are provided, and various test requirements are met; the whole frequency range is covered by 3 pairs of sub-band antenna combinations; the demodulation sensitivity and the frequency resolution are higher; the receiving dynamic range is large, and the received signals are quickly and accurately scanned within the dynamic range of 120 dB; the concrete structure is as follows: including frequency prison equipment, and with the power adapter that frequency prison equipment electricity is connected, its input voltage: 176 VAC-253 VAC50HZ +/-5 HZ; output voltage: 16.8VDC +/-0.1 VDC; antenna and battery box, battery box nominal capacity: 14.4 VDC/12 Ah; after the power is fully charged, the power can be continuously used for 6 hours by the frequency monitoring equipment; as shown in fig. 3, the frequency monitoring device includes a main chassis, and a preselector unit, a front-end unit and a digital processing unit which are arranged inside the main chassis and respectively communicate with the ARM platform main control unit through a bus controller; each module is provided with a module controller, and the equipment realizes information interaction among all units in a bus control mode; the output RF signal of the preselector unit is connected into a front-end unit, and the intermediate frequency signal of the front-end unit is connected into a digital processing unit; the ARM platform main control unit is arranged on the inner surface of the front panel of the mainframe box; the ARM platform main control unit is in communication connection with the voice module and the main control bus controller; and an N-type, 50 omega antenna input interface arranged on the front panel; the antenna input interface is communicatively connected to a pre-selector unit; and a knob for changing the position of the cursor, setting the frequency value or configuration parameters; and a number key for inputting a middle frequency bandwidth value and having a second function key function; and function keys for function selection and enabling a second function of the keypad; the function keys comprise a networking monitoring F1 key, a frequency scanning F2 key, a digital scanning F3 key and a shift key F4 key; number keys: has two functions, which are respectively: used for inputting numerical value and pressing 'confirm' key to confirm input; when the configured parameter is a selection item, the keys of '2' and '8' are respectively an upper key and a lower key to select the parameter, and the parameter is written or stored by pressing a 'confirm' key; the keys of '4' and '6' are respectively pressed to switch the parameter in the anticlockwise direction or the clockwise direction; function keys: in the non-setting state, pressing the F4 key, the top right corner of the display screen appears with a top-level icon (a triangle), as shown in FIG. 5; the frequency monitoring equipment starts a second function of the key: f1 in the function keys is networking monitoring, F2 is frequency scanning, and F3 is digital scanning; in the number keys, the key 1 is medium frequency bandwidth, the key 5 is function selection, the key 7 is operation, the key 9 is configuration or setting, the key 0 is stop, and the click key is exit; when a certain key is pressed, the frequency monitoring equipment executes the function corresponding to the key; for example: in the non-set state, pressing the F4 key causes the top right corner of the display to appear as a top-shift icon. At the moment, pressing a key 1, reversely displaying the intermediate frequency bandwidth, entering the setting of the intermediate frequency bandwidth, selecting through a knob or a key 2 or 8, switching public parameters through a key 4 or a key 6, setting other parameter items, and writing or storing through a key confirming; pressing an F4 (upshifting function) key, pressing any key, the upshifting icon disappears, and the upshifting function is finished; if the shift-up function needs to be recovered, the F4 key is pressed again in the non-setting state; and (4) deleting function: when inputting a numerical value, the F4 key is a delete key; when the input numerical value is deleted, automatically recovering to the original numerical value; when AFC, squelch, manual gain, initial frequency and end frequency parameters are set, firstly pressing an F4 key, and then inputting through a digital key; the touch display screen is used for clicking and configuring parameters; the touch display screen comprises a direct function area, a display area and a menu area; and a power switch for switching on and off; the earphone interface is used for the standard audio interface and is electrically connected with the voice module; the knob, the number keys, the function keys, the touch display screen, the power switch and the earphone interface are in communication connection with the ARM platform main control unit; the preselector unit comprises a preselector controller, a preselector bus controller and a preselector module, wherein the preselector bus controller is communicated with the preselector controller; the front-end unit comprises a front-end controller, a front-end bus controller communicated with the front-end controller, an intermediate frequency module, a first local oscillator, a second local oscillator, a third local oscillator and a self-checking signal generator; the frequency conversion and amplification functions of received signals are mainly completed; the frequency synthesizer module comprises a first local oscillator, a second local oscillator and a third local oscillator, and is mainly used for providing local oscillator signals used for frequency mixing for a receiver; the first to third local oscillators mainly comprise a phase-locked integrated circuit, a VCO, a loop filter and an amplifier; the intermediate frequency module is formed by sequentially connecting a first intermediate frequency mixer, an amplifier, a filter, a second intermediate frequency mixer, an amplifier, a filter, an intermediate frequency AGC, a third intermediate frequency mixer, an amplifier and a filter, and the digital processing module mainly provides a function of converting an analog intermediate frequency signal into a digital intermediate frequency signal and outputting the digital intermediate frequency signal; as shown in fig. 4, the identification of the signal modulation mode is completed by the DSP, and the down-conversion and demodulation functions requiring real-time processing are completed by the FPGA; the central frequency and the bandwidth of the signal are identified by adopting a signal processing algorithm, the central frequency of a digital NCO in the FPGA is further set to finish the orthogonal down-conversion of the signal, the cut-off frequency of a digital low-pass filter is flexibly set according to the bandwidth of the signal to finish the filtering of the signal, and the signal-to-noise ratio of the signal is improved. The DSP automatically identifies the modulation mode of the signal and the related signal parameters thereof, then sets the related parameters of the FPGA, and demodulates the signal by adopting a proper solution mode; the large dynamic range of the received signal is realized by the intermediate frequency AGC, the high bit wide band ADC and the digital AGC in the FPGA together. If the speech definition of the speech signal demodulated from the FPGA needs to be further improved, filtering and amplitude limiting are carried out on external noise except human speech in the sampling information through a speech noise reduction enhancement algorithm in the DSP or the FPGA, so that the signal-to-noise ratio in the speech signal is improved, and then a speech analog signal is formed through digital-to-analog conversion, so that the purpose of improving the speech quality is achieved; the digital processing unit comprises a digital processing module and a power supply module; after a wireless signal in a space is received from an antenna, large signal protection is carried out on equipment through an amplitude limiter and the equipment enters a preselector unit; the preselector module mainly comprises microwave devices such as a low-noise amplifier, a low-insertion-loss radio frequency switch, a low-insertion-loss filter and the like, and is used for selectively filtering and amplifying low noise of signals received from an antenna; the front end unit mainly comprises a broadband high-linearity mixer, a linear amplifier, a high-rectangular-coefficient intermediate frequency filter and other devices, and mainly completes linear frequency conversion, selective filtering and linear amplification output of monitoring signals; the intermediate frequency signals after the third frequency conversion are sent to a digital processing module for digital sampling, AD conversion and digital down conversion, and frequency spectrum data and demodulation information are output after Fourier conversion and demodulation; the main controller adopts an ARM architecture, controls the preselector unit and the front-end unit and performs information interaction through a universal 485 bus controller, and an interface board is arranged on the rear panel of the mainframe box; the interface board comprises a standard network port for a network control terminal interface; the power supply interface is used for externally connecting a power supply adapter interface, is electrically connected with the interface of the battery box and can charge the battery box; the USB interface is used for externally storing the monitoring data and is externally connected with the interface of the mobile storage equipment; the battery pack interface is used for a battery box power supply interface and adopts a 15-core D-shaped connector; and an R232 interface for connecting with a serial remote control; and a BNC type 50 omega intermediate frequency output interface is adopted; the standard network port, the USB interface and the R232 interface are in communication connection with the ARM platform main control unit; the antenna comprises a handheld antenna base and a sub-band antenna arranged on the handheld antenna base; the handheld antenna pedestal is powered by 4 sections of 1.5V batteries or 6V direct current power supplies; when the channel switch ON the back of the handle of the hand-held antenna pedestal is in an 'ON' state, the channel switch is in an active mode, and an amplifier control button ON the handle is pressed, so that the receiving sensitivity can be improved; the channel switch on the back of the handle of the hand-held antenna pedestal is in a passive mode when in an OFF state, and the mode is mainly used for receiving working conditions with high power; when the frequency monitoring equipment searches for small signals, the handheld antenna pedestal can monitor the signals in an active mode; the sub-band antenna comprises a 100 kHz-200 MHz loading loop antenna, a 200 MHz-500 MHz loading loop antenna and a 500 MHz-3.6 GHz log periodic antenna; the sub-band antenna comprises a 100 kHz-200 MHz loading loop antenna, a 200 MHz-500 MHz loading loop antenna and a 500 MHz-3.6 GHz log periodic antenna, wherein the 100 kHz-200 MHz loading loop antenna adopts a passive mode: standing waves are less than 2.5; the gain is larger than-40 dB; an active mode: standing waves are less than 2.5; the gain is larger than-28 dB; the passive mode of the 200 MHz-500 MHz loading loop antenna is as follows: standing waves are less than 2.5; the gain is larger than-38 dB; an active mode: standing waves are less than 2.5; the gain is larger than-25 dB; 500 MHz-3.6 GHz log periodic antenna, passive mode: standing waves are less than 2.5, and gain is greater than 1 dB; an active mode: the standing wave is less than 2.5, and the gain is more than 8 dB.
Wherein, the inner side of the main case is also provided with a frame; a bus bar is arranged on the frame; when the knob changes the cursor position, the frequency range of the change is 100 kHz-3.6 GHz.
The method comprises the steps of firstly connecting a power supply, placing a switch at an on position, starting a frequency monitoring device system to initialize a display welcome interface, initializing a main controller and each module controller, then carrying out power-on self-test, after the self-test, if a certain module works abnormally, displaying a fault code, directly entering a main menu after the self-test if each module works normally, setting the default setting state of the main menu as a single-frequency measurement (fixed frequency measurement) mode, as shown in FIG. 6, testing a signal under the current frequency and displaying the signal in a mode of a level bar, setting a menu area as shown in FIG. 7, including a direct function area, a display area and a menu area, wherein the direct function area is the current state of each common parameter and can be set by clicking the key, the display area is used for displaying the name of the current menu, the parameter setting + the frequency spectrum or the test parameter of the currently received signal, setting the menu area at the lowest point of the display screen and displaying the name of each function level of the menu area, if the menu area is in a second or third level menu, the menu area, the current menu area is used for displaying the name of the current menu name of the menu, the menu name of the menu, the parameter setting + the parameter setting, the parameter setting + the parameter setting and the frequency setting, the parameter setting, the menu area is the menu area, the frequency, the menu area is the frequency, the menu area is the menu area, the parameter setting.
1) Monitoring wireless networking:
in order to effectively judge the robustness of the network, predict and diagnose the fault state of the network, the equipment provides the following monitoring methods: networking monitoring and frequency hopping analysis, wherein the networking monitoring is mainly used for wireless network state evaluation and fault prediction of fixed frequency; the basic operation steps for using this function are as follows:
as shown in fig. 13 and 14, firstly, enter the networking monitoring menu, click the networking monitoring in the main menu, enter the menu, and then configure the common parameters: the method comprises the following steps that parameters such as a starting frequency, a terminating frequency, a resolution ratio and the like are included, and because the function can only monitor the network system equipment within a frequency range, the starting frequency and the terminating frequency need to be set according to the working frequency of the network system equipment, and then the parameters of the network system equipment are configured, and the method comprises the following steps: in the networking monitoring menu, clicking the setting (in the scanning stopping state), and entering the networking monitoring parameter setting, as shown in fig. 15 and 16; the configuration parameters include: working frequency (0.1-3600 MHz), signal bandwidth (3dB) (1-10000 kMz) and state (inhibition/activation); in the scanning process, the frequency below 10MHz and the frequency above 10MHz are separately scanned so as to quickly evaluate the wireless networking state and predict the fault; setting parameters: entering a setting menu, pointing the serial number of the network system equipment by a cursor, inputting the serial number through a numeric keyboard, and calling out information corresponding to the serial number of the network system equipment after pressing a 'confirm' key; if the configuration parameters need to be modified, pressing a 'confirm' key, moving down the cursor, and resetting through a numeric keyboard or a knob when the cursor points to the parameters needing to be modified; after the setting is completed, the save button is clicked, and the configured parameters are stored in the storage unit corresponding to the network system device number in the system, as shown in fig. 17.
The second method comprises the following steps: as shown in fig. 18 to fig. 25, 1) a network system device parameter configuration file is imported through the network port, and the system automatically configures the parameters of each network system device into the frequency monitoring device; the specific operation steps are as follows:
a) creating an excel table, and respectively configuring parameters of a network system device number, a working frequency, a signal bandwidth (3dB) and an activation/suppression state; b) starting a protocol receiving and sending device, and clicking an excel import button; c) and issuing a 'import configuration' instruction to the frequency monitoring equipment, clicking a 'import configuration' button, enabling the frequency monitoring equipment to enter a network control state, automatically exiting the network control state after the parameters of the network system equipment are issued, and clicking a networking monitoring/setting menu to check that the configuration information is successfully imported.
2) Starting monitoring of the network equipment:
a) monitoring a fixed frequency signal, clicking a button under a networking monitoring menu, displaying the currently monitored wireless network environment in a frequency spectrum form by a frequency monitoring device, and displaying the current network fault type below a screen (such as: network system equipment n has no signal and network system equipment m has broadband interference); b) monitoring a frequency hopping signal: entering a networking monitoring/frequency hopping analysis menu, and configuring three parameters of the center frequency, the signal bandwidth and the frequency hopping bandwidth of a frequency hopping signal; after parameter configuration is completed, clicking a button under a frequency hopping analysis menu to start scanning and analyzing a frequency hopping signal, and displaying an analysis result (broadband interference exists in a frequency hopping bandwidth, a frequency hopping signal and point frequency interference exist in the frequency hopping bandwidth, point frequency interference exists in the frequency 1002.02MHz, a frequency hopping signal does not exist in the frequency hopping bandwidth, and the frequency hopping signal is normal) below a screen; c) bandwidth expansion, if a frequency spectrum curve of a certain signal needs to be further observed, a bandwidth expansion button can be clicked; d) the monitoring of the network equipment is stopped, and a button is clicked, so that the state of the wireless networking can be effectively predicted and judged through analyzing parameters such as electromagnetic environment change, frequency recording, power stability and the like by operating the two methods, and the maintenance guarantee and training activities of operators can be efficiently carried out in real time; when the network equipment to be monitored does not transmit signals, the network environment state reported by one of the two methods is operated, so that the operator can know which frequency points are occupied or interference exists nearby the frequency points, and the wireless networking state can be predicted. After the network equipment to be monitored transmits signals, one of the two methods is carried out, so that the operator can be helped to know the working state of each network equipment, the network state can be diagnosed, and support is provided for developing maintenance guarantee and training activities.
3) Wireless channel spectrum monitoring
(1) Single frequency measurement:
as shown in fig. 26 and fig. 27, the single frequency measurement provided in the system can be used for signal stability analysis, and through this scanning manner, the signal strength of the signal source can be tested, or the center frequency and the signal bandwidth of the signal source can be monitored by turning on the "index detection" function; in a main menu and a nonparametric setting state, setting frequency according to a number key of 0-9, in a frequency spectrum display state, F0 is the currently set central frequency, F1 is a signal frequency identified by a frequency monitoring device in a middle frequency band, and the lower left corner displays a cursor frequency and a level value under the frequency; clicking 'index detection', displaying the amplitude modulation depth, 3dB bandwidth, 6dB bandwidth and 26dB bandwidth of a signal source at the lower left corner, and judging the robustness of a signal to be detected through the amplitude modulation depth, the signal bandwidth and the center frequency monitored by single-frequency measurement; if the real-time data of certain network system equipment needs to be saved in battlefield or training, the saving button can be clicked; and then, the playback historical data is used for providing guarantee for guiding the subsequent maintenance work of the operator.
(2) Digital scanning:
the system provides the following operation methods for monitoring the electromagnetic radiation environment of a battlefield during war and training: digital scanning; the digital scanning can arbitrarily set a start-stop frequency range in a frequency range, and reports real-time frequency spectrum data in the frequency range to an operator according to the selected scanning bandwidth, thereby providing support and guarantee for the operator to carry out field training activities; the method comprises the following specific steps:
a) entering a digital scanning menu: in the main menu, clicking the digital scan to enter the menu, as shown in fig. 28 and 29, in the scanning mode, a wider sweep width can be set to quickly search for signals, and in the scanning process, the frequencies below 10MHz and the frequencies above 10MHz are scanned separately to quickly search for signals;
b) scanning: clicking a 'run' button under a digital scanning menu to acquire real-time frequency spectrum data in a frequency range, as shown in fig. 30; if the basic data of the real-time electromagnetic radiation environment of the battlefield needs to be stored, the storage button can be clicked; then, playback historical data is used for providing guarantee for field operation maintenance work;
c) and (3) bandwidth expansion: in the digital scanning menu, in the operating state, the bandwidth expansion is clicked, a bandwidth expansion interface is entered, and a frequency spectrum in which the intermediate frequency bandwidth is used as the display bandwidth at the current frequency is displayed in the bandwidth expansion display mode, as shown in fig. 31.
(3) Frequency scanning:
the frequency scanning is mainly used for monitoring concerned frequency sections, and operators set intervals among frequencies according to needs to realize quick and accurate signal searching; in the frequency scanning mode, scanning upwards and downwards in frequency steps between the starting frequency and the ending frequency according to the scanning mode, wherein the monitoring time of each frequency point is determined by preset residence time; the method comprises the following specific steps:
a) enter frequency scan menu: in a main menu, clicking frequency scanning to enter the menu; as shown in fig. 32 and 33;
b) setting scanning parameters: in the frequency scan menu, click configuration (in the stop scan state), enter frequency scan parameter setting, as shown in fig. 34 and 35; the setting method is the same as the discrete scanning setting, and the starting frequency must be greater than the ending frequency; the setting methods of parameter initial frequency, termination frequency, stepping frequency, residence time and scanning period refer to wireless networking monitoring configuration; after the setting is finished, clicking to store, and storing the setting by the frequency monitoring equipment;
c) setting inhibition scanning parameters: the inhibition scanning function is to delete frequency point scanning in the inhibition frequency section in the scanning process; in the frequency scan configuration menu, click on the suppressed scan, enter the suppressed scan setting, as shown in fig. 36 and 37; the setting method of the number of the frequency lines, the starting frequency and the ending frequency of the parameter suppression refers to the wireless networking monitoring configuration; after the setting is finished, clicking to store, and storing the setting by the frequency monitoring equipment;
d) upward scanning: as shown in fig. 38, when the click is upward scanning, the frequency monitoring device scans within the set frequency band at the step frequency of 1MHz configured in b); if the real-time data of the electromagnetic environment needs to be stored, the storage button can be clicked; and then, the playback historical data is used for providing guarantee for subsequent maintenance work of operators.
The utility model discloses a spectrum monitoring and wireless networking equipment, its operating frequency range is 100 kHz-3.6 GHz, maximum input level is 10dBm, the frequency accuracy is 1 × -7, local oscillator setup time is 0.2ms, local oscillator phase noise is not more than-100 dBc/Hz @10kHz (ƒ =7929.7 MHz), local oscillator is better than-90 dBm to external radiation, typical value-105 dBm, intermediate frequency output frequency 10.7MHz, intermediate frequency maximum bandwidth 10MHz, intermediate frequency spurious is better than 100dBm, level accuracy is 1dB, noise coefficient is not more than 14dB in 20 MHz-3 GHz frequency range, noise coefficient is not more than 16dB in 3 GHz-3.6 GHz frequency range, mirror frequency suppression is better than 75dB, IP2 (stronger signal test) is better than 50dBm, IP3 (stronger signal test) is better than 5dBm, AM (SINAD sensitivity is 9kHz 461 dB, 12 kHz, 20dBm is better than 120dBm when SINAD 2 BW-1 GHz, 20dBm is higher than 20dBm, 20dBm is better than 120dBm, when SINAD, 20 BW-3 GHz is higher than 20 FM-3 GHz.
The above-mentioned embodiment is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles of the present invention are included in the claims of the present invention.
Claims (3)
1. A spectrum monitoring and wireless networking device, characterized in that: the system comprises a frequency monitoring device, a power adapter, an antenna and a battery box, wherein the power adapter, the antenna and the battery box are electrically connected with the frequency monitoring device; the frequency monitoring equipment comprises a mainframe box, a preselector unit, a front-end unit and a digital processing unit, wherein the preselector unit, the front-end unit and the digital processing unit are arranged on the inner side of the mainframe box and are respectively communicated with the ARM platform main control unit through a bus controller; the output RF signal of the preselector unit is connected into a front-end unit, and the intermediate frequency signal of the front-end unit is connected into a digital processing unit; the ARM platform main control unit is arranged on the inner surface of the front panel of the mainframe box; the ARM platform main control unit is in communication connection with the voice module and the main control bus controller; and an N-type, 50 omega antenna input interface arranged on the front panel; the antenna input interface is communicatively connected to a pre-selector unit; and a knob for changing the position of the cursor, setting the frequency value or configuration parameters; and a number key for inputting a middle frequency bandwidth value and having a second function key function; and function keys for function selection and enabling a second function of the keypad; the function keys comprise a networking monitoring F1 key, a frequency scanning F2 key, a digital scanning F3 key and a shift key F4 key; the touch display screen is used for clicking and configuring parameters; the touch display screen comprises a direct function area, a display area and a menu area; and a power switch for switching on and off; the earphone interface is used for the standard audio interface and is electrically connected with the voice module; the knob, the number keys, the function keys, the touch display screen, the power switch and the earphone interface are in communication connection with the ARM platform main control unit; the preselector unit comprises a preselector controller, a preselector bus controller and a preselector module, wherein the preselector bus controller is communicated with the preselector controller; the front-end unit comprises a front-end controller, a front-end bus controller communicated with the front-end controller, an intermediate frequency module, a first local oscillator, a second local oscillator, a third local oscillator and a self-checking signal generator; the digital processing unit comprises a digital processing module and a power supply module; an interface board is arranged on the rear panel of the main case; the interface board comprises a standard network port for a network control terminal interface; the power supply interface is used for externally connecting a power supply adapter interface, is electrically connected with the interface of the battery box and can charge the battery box; the USB interface is used for externally storing the monitoring data and is externally connected with the interface of the mobile storage equipment; the battery pack interface is used for a battery box power supply interface and adopts a 15-core D-shaped connector; and an R232 interface for connecting with a serial remote control; and a BNC type 50 omega intermediate frequency output interface is adopted; the standard network port, the USB interface and the R232 interface are in communication connection with the ARM platform main control unit; the antenna comprises a handheld antenna base and a sub-band antenna arranged on the handheld antenna base; the sub-band antenna comprises a 100 kHz-200 MHz loading loop antenna, a 200 MHz-500 MHz loading loop antenna and a 500 MHz-3.6 GHz log-periodic antenna.
2. The spectrum monitoring and wireless networking device of claim 1, wherein: the inner side of the main case is also provided with a frame; and a bus bar is arranged on the frame.
3. The spectrum monitoring and wireless networking device of claim 1, wherein: when the knob changes the cursor position, the frequency range of the change is 100 kHz-3.6 GHz.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113438042A (en) * | 2021-05-10 | 2021-09-24 | 中国科学院新疆天文台 | Real-time electromagnetic environment monitoring system and method |
| WO2023279170A1 (en) * | 2021-07-09 | 2023-01-12 | RANlytics Limited | A system for monitoring and measuring multiple heterogeneous radio communications networks |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113438042A (en) * | 2021-05-10 | 2021-09-24 | 中国科学院新疆天文台 | Real-time electromagnetic environment monitoring system and method |
| CN113438042B (en) * | 2021-05-10 | 2023-03-28 | 中国科学院新疆天文台 | Real-time electromagnetic environment monitoring system and method |
| WO2023279170A1 (en) * | 2021-07-09 | 2023-01-12 | RANlytics Limited | A system for monitoring and measuring multiple heterogeneous radio communications networks |
| AU2022252814B2 (en) * | 2021-07-09 | 2023-11-09 | RANlytics Limited | A system for monitoring and measuring multiple heterogeneous radio communications networks |
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