CN207321263U - Portable communication apparatus in situ detection instrument - Google Patents
Portable communication apparatus in situ detection instrument Download PDFInfo
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- CN207321263U CN207321263U CN201721401679.0U CN201721401679U CN207321263U CN 207321263 U CN207321263 U CN 207321263U CN 201721401679 U CN201721401679 U CN 201721401679U CN 207321263 U CN207321263 U CN 207321263U
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Abstract
The utility model discloses a kind of portable communication apparatus in situ detection instrument, including housing, radio station radio frequency interface, audio interface, the car being arranged on housing connect mouth, remote control/data/error code mouth, serial ports, network interface, USB port, display screen, and set main control module, radiofrequency signal conditioning module, channel processing module, frequency synthesis module, audio signal generation module, audio-frequency signal processing module, Digital IF Processing module, baseband processing module inside housings.The utility model makes detector, and volume smaller, quality are lighter, are easy to carry about with one on the basis of possessing all purpose instrument function.
Description
Technical field
The utility model belongs to test field of measuring technique, is specifically related to a kind of portable communication apparatus in situ detection
Instrument.
Background technology
As my the gradual of army's information reform is completed, status of the communication system in modern operation is also more and more important,
Who loses communication function between ourselves and the enemy, will become " blind person " or " deaf person ", lose the initiative in whole battlefield immediately, lose
One campaign.The important component of radio station and Che Tong as communication system, plays conclusive work in whole communication link
With.The detection of current radio mainly detects the indices of transmitter and receiver, and the state equipped by index reflection, is surveyed
The special instruments such as radio-frequency signal source, power meter, frequency meter, measuring receiver, comprehensive tester, frequency spectrograph are needed during examination,
It is bench device that these equipment are most of, and volume is big, weight is heavy, complicated, can only operate indoors, and it is existing can not to reach equipment
, it is unfavorable for the expansion that retinue ensures.
Utility model content
The equipments such as the utility model is directed to radio station, car leads to required meter specially in detection process is excessive, manipulation is cumbersome, no
Just the problem of being unfolded, there is provided a kind of integrated level is high, easy to operate, detection fast and accurately portable communication apparatus in situ detection
Instrument, without equipment is separated former station, so that it may realize to vehicle-mounted ultrashort wave frequency hopping radio set, short wave SSB frequency hopping radio set, shortwave
The in-car communication of single side-band receiver, numeral, digital car communication systems major function performance Indexs measure, Configuration Inspection
And fault diagnosis.
The technical solution for realizing the utility model aim is：A kind of portable communication apparatus in situ detection instrument, including
Housing, radio station radio frequency interface, audio interface, the car being arranged on housing connect mouth, remote control/data/error code mouth, serial ports, network interface,
USB port, display screen, and main control module inside housings, radiofrequency signal conditioning module, channel processing module, frequency are set
Synthesis module, audio signal generation module, audio-frequency signal processing module, Digital IF Processing module, baseband processing module, wherein
Audio interface, car connect the both-way communication end of mouth connection audio-frequency signal processing module, and remote control/data/error code mouth connects numeral
The both-way communication end of IF process module and the output terminal of main control module, serial ports/network interface/USB port connect the two-way of main control module
Communication terminal, the output terminal of audio-frequency signal processing module are sequentially connected with Digital IF Processing module, baseband processing module, Base-Band Processing
The both-way communication end of the two-way communication end connection main control module of module, an output terminal of baseband processing module are sequentially connected with frequency
Synthesis module, radiofrequency signal conditioning module, channel processing module, another output terminal of baseband processing module are sequentially connected with audio
Signal generator module, audio-frequency signal processing module.
Compared with prior art, its remarkable advantage is the utility model：1) the utility model is integrated using extensive simulation
Circuit and digital integrated circuit technique, by radio-frequency signal source, power meter, frequency meter, measuring receiver, comprehensive tester, frequency spectrum
The function that the special instruments such as instrument possess carries out Highgrade integration, makes detector on the basis of possessing all purpose instrument function, body
Product smaller, quality are lighter, are easy to carry about with one；2) the utility model provides flexible loading technique, makes detector during the test,
According to different measured signals, the corresponding algorithm of real-time loading greatly reduces digital signal into digital signal processing chip
The usage quantity of process chip, reduces the design difficulty of hardware module, enhances the reliability of detector；3) the utility model
/ analysis module is produced by agreement, broadcasting station transmitter power, frequency, frequency deviation, receiver audio letter Nader, audio can be detected
The indexs such as the distortion factor, transmission error rates, reflect the state of the art of tested equipment comprehensively.
Brief description of the drawings
Fig. 1 is the high-level schematic functional block diagram of the utility model portable communication apparatus in situ detection instrument；
Fig. 2 is the host appearance schematic diagram (front view) of the utility model portable communication apparatus in situ detection instrument；
Fig. 3 is the connection diagram in the utility model portable communication apparatus in situ detection instrument detection radio station；
Fig. 4 is the connection diagram that the utility model portable communication apparatus in situ detection instrument detection car leads to.
Embodiment
Below in conjunction with the accompanying drawings the utility model is further illustrated with specific embodiment.
Portable communication apparatus in situ detection instrument as shown in Figs. 1-2, including housing, the radio station radio frequency being arranged on housing
Interface, audio interface, car connect mouth, remote control/data/error code mouth, serial ports, network interface, USB port, display screen, and are arranged on housing
Main control module, radiofrequency signal conditioning module, channel processing module, frequency synthesis module, audio signal generation module, the sound of inside
Audio signalprocessing module, Digital IF Processing module, baseband processing module, wherein audio interface, car connect mouth connection audio letter
The both-way communication end of number processing module, the both-way communication end of remote control/data/error code mouth connection Digital IF Processing module and master control
The output terminal of module, the both-way communication end of serial ports/network interface/USB port connection main control module, the output terminal of audio-frequency signal processing module
Digital IF Processing module, baseband processing module are sequentially connected with, the two-way communication end connection main control module of baseband processing module
Both-way communication end, an output terminal of baseband processing module are sequentially connected with frequency synthesis module, radiofrequency signal conditioning module, channel
Processing module, another output terminal of baseband processing module are sequentially connected with audio signal generation module, audio-frequency signal processing module.
The concrete structure and function of each module are illustrated in detail below.
Main control module is used for realization function, the utility model such as control command is sent, data transfer and triggering are synchronous and uses
The PXA270 low power processors of Intel, have the characteristics that low-power consumption, open, easy extension.The dominant frequency of processor is
520MHz, expands the interfaces such as PC104, USB, RS232, RS485 and GPIO, and the synchronous dynamic random for being configured with 1 128MB is deposited
The Nor Flash chip of reservoir SDRAM, 4MB, the NandFlash chips of 512MB, network interface use DM9000 network controllers；
UCB1400 is connected in bus as the interface chip of sound card and touch-screen.
Channel processing module is made of circuits such as programmable attenuator, frequency mixer, coupler, wave filter, wave detectors.Launching
When machine measures, channel processing module completes the decay and mixing of radiofrequency signal；When receiver measures, output radiofrequency signal is completed
Decay.In addition detection also is carried out to power signal, obtains rf power signal and forward power and backward power signal.
IF process module is by automatic gain amplifier (AGC), intermediate frequency ADC, audio ADC and FPGA device composition.Can be right
Signal from channel processing module realizes Digital Down Convert, digital filtering, I/Q is decomposed, error code produces and test, car lead to test
Etc. function.FPGA programs are loaded by baseband processing module by master controller.
Baseband processing module using the TMS320VC5510 low-power consumption of TI companies, high-performance, 16 fixed point digital signals at
Manage device and carry out digital baseband transmission system, the digital baseband signal after reduction of speed processing can be demodulated and be calculated, can be with
Realize audio analysis function.
Frequency synthesis module includes direct digital synthesiser, I/Q modulators, local oscillation circuit, attenuator, amplifier.Frequency
Synthesis module reference frequency output is 1MHz~550MHz, frequency resolution 1Hz, can produce the radiofrequency signal with modulation, is adjusted
Mode processed has analog form and digital form.Analog form is mode of frequency regulation, modulating frequency 1kHz, frequency modulation for 4kHz and
5.6kHz；Digital form has π/4QPSK and GMSK.
DDS signal generators reference frequency output is 1MHz~128.125MHz, level 0dBm.When needing to export
During Common radio frequency signal within 100MHz, relay K1 and K2 are in stationary knife position, and signal is directly produced by DDS signal generators
Give birth to and export；When needing output 100~550MHz Common radio frequency signals, relay K1 and K2 are in moving knife position, DDS signals
100~128.125MHz signals that generator produces are used as with reference to signal and complete 16 frequencys multiplication through LO1 circuits, and LO1 circuits are therefore
1.6~2.05GHz is produced, relay K3 and K4 are in stationary knife position, and 1.6~2.05GHz signals are produced with LO2 circuits
1.5GHz is mixed, and obtains 100~550MHz signal outputs；When needing output 100~550MHz vector radiofrequency signals, after
Electric appliance K1 and K2 are in moving knife position, and 100~128.125MHz signals that DDS signal generators produce are used as with reference to signal and pass through
LO1 circuits complete 16 frequencys multiplication, and therefore LO1 circuits produce 1.6~2.05GHz, relay K3 and K4 are in moving knife position, 1.6~
Local oscillator of the 2.05GHz signals as I/Q modulator, 1.6~2.05GHz orthogonal demodulation signals that I/Q modulator produces are electric with LO2 again
The 1.5GHz that road produces is mixed, and obtains the output of 100~550MHz orthogonal demodulation signals.
Radio frequency level conditioning module includes filter circuit, alc circuit, voltage reference circuit, temperature-compensation circuit etc., in the future
Level processing is done from 1MHz~550MHz radiofrequency signals of frequency synthesis module, when communication equipment receiver is tested, exports 0dBm
The radio frequency fixed ampllitude signal of~-20dBm；When communication equipment sender is tested, the local oscillation signal of output+3dBm.
Audio signal generator module includes direct digital synthesiser, amplitude control circuit, output driving circuit, load
With selection control circuit.Can produce 1kHz single-tones and the two-tone signal of 1.6kHz+1kHz, exports audio signal size for 1mV~
300mV；The 1kHz square waves that the single-tone of 1kHz is provided by system are considered ripple device through low pass and are formed, and 1.6kHz is produced by DDS；Two-tone signal
It is synthetically produced through adder by two-way single-tone.Single two-tone signal is controlled through amplitude, output driving, then the output provided by system is born
Carry match selection, can Differential Output, impedance is 600 Ω and 120 Ω, and impedance is low-resistance and 150 Ω during Single-end output.
Audio-frequency test circuit includes audio input output impedance match circuit, and car leads to the portions such as coding/decoding circuit, attenuator
Divide and form.The function that car leads to encoder is that audio source signal is carried out audio coding；The function that car leads to decoder is to lead to car to send
The audio coding signal come is decoded, and is converted into audio signal.
The utility model device can realize radio station test and the in-car communication of numeral/numeral car communication systems test,
Concrete operating principle is as follows：
(1) radio station test includes broadcasting station transmitter test and radio station receiver test.When broadcasting station transmitter is tested, by audio
Signal generator module sends audio signal, this audio signal then is sent to radio station by audio interface, audio is believed in radio station
Number it is modulated, then gives modulated signal to channel processing module by radio frequency mouth, is completed in channel processing module mixed
Frequency obtains intermediate-freuqncy signal, and then giving this intermediate-freuqncy signal to Digital IF Processing module is handled.During the receiver test of radio station,
The radiofrequency signal of certain frequency and amplitude is sent by radio frequency level conditioning module, is then passed to radio station demodulation, radio station demodulates sound
After frequency signal, this signal is given to audio-frequency signal processing module by audio port, again gives this signal after corresponding processing
To Digital IF Processing module and baseband processing module, the functions such as corresponding test are completed.
(2) the in-car communication of numeral/numeral car communication systems test includes car and leads to test and encoding function test.Che Tong
During test, decoding function test is first to send audio signal by audio generation module, then gives audio processing modules coding, then
By digital interface car is given to lead to, car leads to decode audio signal after, given by audio port at audio-frequency signal processing module
Reason, then gives processed audio signal to IF process module and is tested accordingly；Encoding function test is by audio
Signal generator module directly gives audio signal to car and leads to coding, and car crosses digital interface and gives the signal after coding to audio all
Signal processing module decoding process, gives IF process resume module, finally in baseband processing module again after obtaining audio signal
It is middle to complete corresponding test function.
, it is necessary to connect main survey and tested equipment in test process.Connection relation is detected as shown in figure 3, car leads to detection in radio station
Connection relation is as shown in Figure 4.It is with the test cable allotted at random, tested equipment is corresponding with detector during use
Interface is attached.By the dedicated test software on detector, tested equipment is chosen, is completed according to the prompt message on interface
Parameter configuration, runs a key testing process, for detector according to programmed logic, calling software and hardware resources to complete tested equipment items can
The detection of index is surveyed, by all testing result real-time displays in interface, for abnormal measurement result, maintenance can be provided and built
View instructs soldier to carry out maintenance.
Claims (10)
- A kind of 1. portable communication apparatus in situ detection instrument, it is characterised in that including housing, the radio station radio frequency being arranged on housing Interface, audio interface, car connect mouth, remote control/data/error code mouth, serial ports, network interface, USB port, display screen, and are arranged on housing Main control module, radiofrequency signal conditioning module, channel processing module, frequency synthesis module, audio signal generation module, the sound of inside Audio signalprocessing module, Digital IF Processing module, baseband processing module, wherein audio interface, car connect mouth connection audio letter The both-way communication end of number processing module, the both-way communication end of remote control/data/error code mouth connection Digital IF Processing module and master control The output terminal of module, serial ports, network interface, the both-way communication end of USB port connection main control module, the output terminal of audio-frequency signal processing module Digital IF Processing module, baseband processing module are sequentially connected with, the two-way communication end connection main control module of baseband processing module Both-way communication end, an output terminal of baseband processing module are sequentially connected with frequency synthesis module, radiofrequency signal conditioning module, channel Processing module, another output terminal of baseband processing module are sequentially connected with audio signal generation module, audio-frequency signal processing module.
- 2. portable communication apparatus in situ detection instrument according to claim 1, it is characterised in that the main control module includes The PXA270 processors of Intel, synchronous DRAM SDRAM, Nor Flash chip, NandFlash chips, network control Device processed, the interface chip of touch-screen.
- 3. portable communication apparatus in situ detection instrument according to claim 1, it is characterised in that the channel processing module Including attenuator, frequency mixer, coupler, wave filter and detector circuit.
- 4. portable communication apparatus in situ detection instrument according to claim 1, it is characterised in that the IF process module Including automatic gain amplifier, intermediate frequency ADC, audio ADC and FPGA device.
- 5. portable communication apparatus in situ detection instrument according to claim 1, it is characterised in that the baseband processing module Using the TMS320VC551 processors of TI companies.
- 6. portable communication apparatus in situ detection instrument according to claim 1, it is characterised in that the frequency synthesis module Including direct digital synthesiser, I/Q modulators, local oscillation circuit, attenuator, amplifier.
- 7. portable communication apparatus in situ detection instrument according to claim 1, it is characterised in that the radio frequency level conditioning Module includes filter circuit, alc circuit, voltage reference circuit, temperature-compensation circuit.
- 8. portable communication apparatus in situ detection instrument according to claim 1, it is characterised in that the audio signal produces Device module includes direct digital synthesiser, amplitude control circuit, output driving circuit, load matched selection control circuit.
- 9. portable communication apparatus in situ detection instrument according to claim 1, it is characterised in that the audio-frequency test circuit Lead to coding/decoding circuit, attenuator including audio input output impedance match circuit, car.
- 10. portable communication apparatus in situ detection instrument according to claim 1, it is characterised in that also set inside housings Put power module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721401679.0U CN207321263U (en) | 2017-10-27 | 2017-10-27 | Portable communication apparatus in situ detection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721401679.0U CN207321263U (en) | 2017-10-27 | 2017-10-27 | Portable communication apparatus in situ detection instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207321263U true CN207321263U (en) | 2018-05-04 |
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ID=62378793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721401679.0U Active CN207321263U (en) | 2017-10-27 | 2017-10-27 | Portable communication apparatus in situ detection instrument |
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| Country | Link |
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| CN (1) | CN207321263U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112666504A (en) * | 2020-12-01 | 2021-04-16 | 扬州船用电子仪器研究所(中国船舶重工集团公司第七二三研究所) | Portable detection equipment of digital instantaneous frequency measurement receiver |
| CN116865835A (en) * | 2023-08-08 | 2023-10-10 | 中国人民解放军61035部队 | Portable detection system and method for satellite communication portable station |
-
2017
- 2017-10-27 CN CN201721401679.0U patent/CN207321263U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112666504A (en) * | 2020-12-01 | 2021-04-16 | 扬州船用电子仪器研究所(中国船舶重工集团公司第七二三研究所) | Portable detection equipment of digital instantaneous frequency measurement receiver |
| CN116865835A (en) * | 2023-08-08 | 2023-10-10 | 中国人民解放军61035部队 | Portable detection system and method for satellite communication portable station |
| CN116865835B (en) * | 2023-08-08 | 2024-01-23 | 中国人民解放军61035部队 | Portable detection system and method for satellite communication portable station |
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