CN103888759B - Digital television radio-frequency signal analysis device and method - Google Patents
Digital television radio-frequency signal analysis device and method Download PDFInfo
- Publication number
- CN103888759B CN103888759B CN201410116381.XA CN201410116381A CN103888759B CN 103888759 B CN103888759 B CN 103888759B CN 201410116381 A CN201410116381 A CN 201410116381A CN 103888759 B CN103888759 B CN 103888759B
- Authority
- CN
- China
- Prior art keywords
- digital television
- hand
- frequency
- television radio
- frequency signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to a digital television radio-frequency signal analysis device and method. The device comprises handheld type signal acquisition and processing equipment which utilizes a wireless communication mode to communicate with each other and a personal handheld terminal. The handheld type signal acquisition and processing equipment is used for tuning to a frequency point to be measured according to an instruction of the personal handheld terminal, collecting digital television radio-frequency signals of the frequency point and demodulating, processing and packaging the collected digital television radio-frequency signals in sequence, and sending the packaged data to the personal handheld terminal; the personal handheld terminal is used for sending the instruction to the handheld type signal acquisition and processing equipment, and graphically displaying the data sent by the handheld type signal acquisition and processing equipment. According to the digital television radio-frequency signal analysis device and method, highly intelligent, highly precise and multi-functional digital television radio-frequency signal measurement and analysis are achieved with extreme low costs by the adoption of powerful processing and graphics display ability of smart phones and other personal handheld devices.
Description
Technical field
The present invention relates to ground digital television broadcast field, particularly a kind of digital television radio-frequency signal analytical equipment and method.
Background technology
Radio and television are one of the most popular current information propagating pathways, and television broadcasting mainly contains ground, wired, satellite three kinds of modes.Television ground transmission means is stablized aspect to national security and is had great brief biography meaning, plays an important role in harm that the generation and minimizing of avoiding major crisis cause etc.And after broadcasting digitalization, transmission program is more clear, content is abundanter, it is more convenient to process and store.Compare with cable digital TV with satellite digital TV, terrestrial transmission mode antijamming capability is strong, just can receive under general indoor conditions, and there is higher flexibility, the television broadcasting of single-definition and high definition compatibility, mobile reception and portable reception can be supported, build and maintenance cost low.Therefore, ground digital television broadcast, by bringing abundant content and various business model, has wide market prospects.But mention key before the covering quality of ground digital television broadcast network is to provide related service, the network coverage quality content measurement in simulation epoch can not meet the requirement of digital Age far away.
Can be used at present ground digital television broadcast radiofrequency signal test instrument (as field intensity meter, signal analyzer etc.) comprise signal processing module, control circuit module, central processing module and display module etc., mainly can be divided into two classes: one be the instrument that intelligence degree is high, interactive interface is friendly, multiple functional, measuring accuracy is high is generally desk-top main equipment, expensive, test for laboratory; One be applicable engineering, technical staff field or user's on-the-spot test Backpack type or Portable Measurement Instrument function singleness, precision is low, with charactron or the display of liquid crystal display screen non-patterned, price is relatively cheap.Yi Zhi, existing ground digital television broadcast radiofrequency signal test signal exists that equipment price is high, content measurement not comprehensively and the problems such as multiple frequency signals can not be tested simultaneously.
Based on the problems referred to above, the process utilizing the personal hand-held equipments such as smart mobile phone powerful, display capabilities, the method for carrying out terrestrial DTV rf signal analysis is arisen at the historic moment.The present invention, just based on this thinking, gives a kind of digital television radio-frequency signal analytical equipment and method.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of digital television radio-frequency signal analytical equipment and method, for solving the confinement problems that existing apparatus test analysis terrestrial DTV radiofrequency signal exists.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of digital television radio-frequency signal analytical equipment, comprises the hand-hold type signals collecting and treatment facility and personal hand-held terminal that adopt wireless communication mode to intercom mutually;
Described hand-hold type signals collecting and treatment facility, it is for the instruction according to described personal hand-held terminal, be tuned to need measure frequency, and gather the digital television radio-frequency signal of this frequency, and successively demodulation, process and packing are carried out to the digital television radio-frequency signal gathered, then the data after packing are sent to personal hand-held terminal;
Described personal hand-held terminal, it is for sending instruction to described hand-hold type signals collecting and treatment facility, and the data that hand-hold type signals collecting described in graphic software platform and treatment facility send.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described hand-hold type signals collecting and treatment facility comprise the tuner, demodulator, CPU and the radio communication unit that connect successively;
Described tuner, for be tuned to need the frequency measured, and receive the digital television radio-frequency signal of this frequency, digital television radio-frequency signal be converted to intermediate-freuqncy signal, and be transferred to demodulator;
Described demodulator, for carrying out demodulation to the intermediate-freuqncy signal received, and extracts signal parameter, then the data of demodulation generation and signal parameter is sent to CPU;
Described CPU, processes for the data that produce demodulation and signal parameter and packs, and the data of packing are regularly distributed to described wireless communication module; Also for receiving the instruction that personal hand-held terminal is sent by wireless communication module, and regulate described tuner and demodulator according to the instruction received;
Described wireless communication module, for sending to personal hand-held terminal by the data of packing.
Further, described wireless communication module adopts wifi module and/or bluetooth module.
Further, the data produced through described demodulator demodulation comprise Modulation Error Rate MER, bit error rate BER, carrier power to noise power ratio C/N, multipath Multi-path, field intensity and transport stream (TS stream), and described personal hand-held terminal is also for carrying out decoding and playing in real time to the TS stream after demodulation.
Further, described hand-hold type signals collecting and treatment facility also comprise the battery unit with charging inlet, for powering to described hand-hold type signals collecting and treatment facility.
Further, described personal hand-held terminal comprises frequency search instruction, frequency selection instruction and frequency replacing instruction to the instruction that described hand-hold type signals collecting and treatment facility send.
Further, described personal hand-held terminal adopts smart mobile phone, PAD or wearable smart machine.
Technical scheme of the present invention also comprises a kind of digital television radio-frequency signal analytical method, specifically has following steps:
Step 1, arranges the hand-hold type signals collecting and treatment facility and personal hand-held terminal that adopt wireless communication mode to intercom mutually;
Step 2, personal hand-held terminal sends instruction to hand-hold type signals collecting and treatment facility;
Step 3, hand-hold type signals collecting and treatment facility are according to the instruction of personal hand-held terminal, be tuned to need measure frequency, gather the digital television radio-frequency signal of this frequency, and successively demodulation, process and packing are carried out to the digital television radio-frequency signal gathered, then the data after packing are sent to personal hand-held terminal;
Step 4, the data that hand-hold type signals collecting described in personal hand-held terminal graphic software platform and treatment facility send.
Further, described step 3 specifically comprises;
Step 31, be tuned to need measure frequency, receive the digital television radio-frequency signal of this frequency, and digital television radio-frequency signal be converted to intermediate-freuqncy signal;
Step 32, carries out demodulation to the intermediate-freuqncy signal received, and extracts signal parameter;
Step 33, the data produce demodulation and signal parameter process and pack, and regularly the data of packing are sent to personal hand-held terminal with wireless communication mode.
Further, the data that in described step 3, demodulation produces comprise MER, BER, C/N, Multi-path, field intensity and TS stream, and described step 4 also comprises: carry out decoding to the TS stream after demodulation and play in real time.
The invention has the beneficial effects as follows: the present invention utilizes powerful process and figure (image) display capabilities of the personal hand-held equipments such as smart mobile phone, realize highly intellectuality, high accuracy, the measurement of multi-functional digital television radio-frequency signal with extremely low cost, analyze, and the real-time broadcasting of TV signal, significantly reduce that Digital Television is measured, analysis cost, help lend some impetus to digital television broadcasting Scientific Construction, management universal.
Accompanying drawing explanation
Fig. 1 is the structural representation of digital television radio-frequency signal analytical equipment of the present invention;
Fig. 2 is the schematic flow sheet of digital television radio-frequency signal analytical equipment of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
1, hand-hold type signals collecting and treatment facility, 2, personal hand-held terminal, 11, tuner, 12, demodulator, 13, CPU, 14, radio communication unit, 15, battery unit.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, this gives a kind of digital television radio-frequency signal analytical equipment, comprise the hand-hold type signals collecting and treatment facility 1 and personal hand-held terminal 2 that adopt wireless communication mode to intercom mutually;
Described hand-hold type signals collecting and treatment facility 1, it is for the instruction according to described personal hand-held terminal, be tuned to need measure frequency, and gather the digital television radio-frequency signal of this frequency, and successively demodulation, process and packing are carried out to the digital television radio-frequency signal gathered, then the data after packing are sent to personal hand-held terminal 2;
Described personal hand-held terminal 2, it is for sending instruction to described hand-hold type signals collecting and treatment facility 1, and the data that hand-hold type signals collecting described in graphic software platform and treatment facility 1 send.
Equally as shown in Figure 1, wherein hand-hold type signals collecting and treatment facility comprise the tuner 11, demodulator 12, CPU 13 and the radio communication unit 14 that connect successively, also comprise the battery unit 15 with charging inlet in addition, for powering to described hand-hold type signals collecting and treatment facility.
Described tuner 11, for be tuned to need the frequency measured, and receive the digital television radio-frequency signal of this frequency, digital television radio-frequency signal be converted to intermediate-freuqncy signal, and be transferred to demodulator;
Described demodulator 12, for carrying out demodulation to the intermediate-freuqncy signal received, and extracts signal parameter, then the data of demodulation generation and signal parameter is sent to CPU;
Described CPU 13, processes for the data that produce demodulation and signal parameter and packs, and the data of packing are regularly distributed to described wireless communication module; Also for receiving the instruction that personal hand-held terminal is sent by wireless communication module, and regulate described tuner and demodulator according to the instruction received;
Described wireless communication module 14, for sending to personal hand-held terminal by the data of packing.
In the present embodiment, described tuner 11, for realizing the conversion of RF signal to IF signal, selects the tuner supporting TV full frequency band; Described demodulator 12, selects special demodulating chip, realizes the rectification of digital television radio-frequency signal, and analyzes extraction signal parameter; Described CPU 13 adopts MCU, DSP, ARM etc., and the I2C realizing demodulator and tuner controls, and collects the data packing of demodulator, is regularly distributed to wireless communication module; Described wireless communication module 14, it adopts wifi module and/or bluetooth module, establishes hand-hold type signals collecting and the connection of the radio communication between treatment facility and personal hand-held terminal, thus can send packing data to personal hand-held equipment; Described battery unit 15, with charging inlet, inside establishes charging circuit, can be battery charging.
In addition, in the present embodiment, personal hand-held equipment can adopt conventional smart mobile phone, PAD, wearable smart machine etc., mainly realizes the function of instruction transmission and graphical data display, yet comprises decoding TS stream, plays the functions such as TS stream.The specific implementation of these functions is existing mature technology, and complete corresponding function by installing corresponding APP software in personal hand-held equipment in the present embodiment, drop in equipment cost to reduce existing digital television radio-frequency signal analytical equipment, and make measuring equipment more portability.
In actual operation process, personal hand-held terminal comprises frequency search instruction, frequency selection instruction and frequency to the instruction that described hand-hold type signals collecting and treatment facility send and changes instruction etc., hand-hold type signals collecting and treatment facility carry out data acquisition and processing (DAP) according to the instruction received, data after its demodulator demodulation comprise MER, BER, C/N, Multi-path, field intensity and TS stream, these data are sent to personal hand-held terminal after packing process, and personal hand-held terminal carries out graphic software platform and analysis to it.Therefore, when requiring in instruction to gather multiple frequency point data simultaneously, finally show the measurement result of multiple frequency by personal hand-held terminal simultaneously.In addition, can also demonstrate according to threshold level simultaneously receive allowance information, and by personal hand-held terminal, decoding be carried out and broadcasting in real time to the TS stream after demodulation.
Accordingly, as shown in Figure 2, the process that said apparatus carries out digital television radio-frequency signal analysis comprises the following steps:
Step 1, arranges the hand-hold type signals collecting and treatment facility and personal hand-held terminal that adopt wireless communication mode to intercom mutually;
Step 2, personal hand-held terminal sends instruction to hand-hold type signals collecting and treatment facility;
Step 3, hand-hold type signals collecting and treatment facility are according to the instruction of personal hand-held terminal, be tuned to need measure frequency, gather the digital television radio-frequency signal of this frequency, and successively demodulation, process and packing are carried out to the digital television radio-frequency signal gathered, then the data after packing are sent to personal hand-held terminal;
Step 4, the data that hand-hold type signals collecting described in personal hand-held terminal graphic software platform and treatment facility send, make radiofrequency signal parameter, receive the information such as allowance and change thereof, all can play by real-time decoding as required.
Wherein, described step 3 specifically comprises;
Step 31, be tuned to need measure frequency, receive the digital television radio-frequency signal of this frequency, and digital television radio-frequency signal be converted to intermediate-freuqncy signal;
Step 32, carries out demodulation to the intermediate-freuqncy signal received, and extracts signal parameter;
Step 33, the data produce demodulation and signal parameter process and pack, and regularly the data of packing are sent to personal hand-held terminal with wireless communication mode.
Yi Zhi, the present embodiment make use of data-handling capacity and the graphical treatment ability of existing personal hand-held terminal, and be integrated with the function of carrying out digital television radio-frequency signal analysis, the device that tester carries the present embodiment carries out the test of digital television radio-frequency information at the scene, and observe data cases and corresponding index at a glance by personal hand-held equipments such as smart mobile phones, network coverage quality can be determined easily, and be convenient to carry out installment and debugging to relevant devices such as antennas.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a digital television radio-frequency signal analytical equipment, is characterized in that, comprises the hand-hold type signals collecting and treatment facility and personal hand-held terminal that adopt wireless communication mode to intercom mutually;
Described hand-hold type signals collecting and treatment facility, it is for the instruction according to described personal hand-held terminal, be tuned to need measure frequency, and gather the digital television radio-frequency signal of this frequency, and successively demodulation, process and packing are carried out to the digital television radio-frequency signal gathered, then the data after packing are sent to personal hand-held terminal;
Described hand-hold type signals collecting and treatment facility comprise the tuner, demodulator, CPU and the radio communication unit that connect successively;
Described tuner, for be tuned to need the frequency measured, and receive the digital television radio-frequency signal of this frequency, digital television radio-frequency signal be converted to intermediate-freuqncy signal, and be transferred to demodulator;
Described demodulator, for carrying out demodulation to the intermediate-freuqncy signal received, and extracts signal parameter, then the data of demodulation generation and signal parameter is sent to CPU;
Described CPU, processes for the data that produce demodulation and signal parameter and packs, and the data of packing are regularly distributed to described wireless communication module; Also for receiving the instruction that personal hand-held terminal is sent by wireless communication module, and regulate described tuner and demodulator according to the instruction received;
Described wireless communication module, for sending to personal hand-held terminal by the data of packing;
Described personal hand-held terminal, it is for sending instruction to described hand-hold type signals collecting and treatment facility, and the data that hand-hold type signals collecting described in graphic software platform and treatment facility send.
2. digital television radio-frequency signal analytical equipment according to claim 1, is characterized in that, described wireless communication module adopts wi fi module and/or bluetooth module.
3. digital television radio-frequency signal analytical equipment according to claim 1, it is characterized in that, the data produced through described demodulator demodulation comprise Modulation Error Rate MER, bit error rate BER, carrier power to noise power ratio C/N, multipath Multi-path, field intensity and transport stream, and described personal hand-held terminal is also for carrying out decoding and playing in real time to the transport stream after demodulation.
4. digital television radio-frequency signal analytical equipment according to claim 1, is characterized in that, described hand-hold type signals collecting and treatment facility also comprise the battery unit with charging inlet, for powering to described hand-hold type signals collecting and treatment facility.
5. digital television radio-frequency signal analytical equipment according to claim 1, is characterized in that, described personal hand-held terminal comprises frequency search instruction, frequency selection instruction and frequency to the instruction that described hand-hold type signals collecting and treatment facility send and changes instruction.
6. digital television radio-frequency signal analytical equipment according to any one of claim 1 to 5, is characterized in that, described personal hand-held terminal adopts smart mobile phone, PAD or wearable smart machine.
7. a digital television radio-frequency signal analytical method, is characterized in that, comprising:
Step 1, arranges the hand-hold type signals collecting and treatment facility and personal hand-held terminal that adopt wireless communication mode to intercom mutually;
Step 2, personal hand-held terminal sends instruction to hand-hold type signals collecting and treatment facility;
Step 3, hand-hold type signals collecting and treatment facility are according to the instruction of personal hand-held terminal, be tuned to need measure frequency, gather the digital television radio-frequency signal of this frequency, and successively demodulation, process and packing are carried out to the digital television radio-frequency signal gathered, then the data after packing are sent to personal hand-held terminal;
Described step 3 specifically comprises;
Step 31, be tuned to need measure frequency, receive the digital television radio-frequency signal of this frequency, and digital television radio-frequency signal be converted to intermediate-freuqncy signal;
Step 32, carries out demodulation to the intermediate-freuqncy signal received, and extracts signal parameter;
Step 33, the data produce demodulation and signal parameter process and pack, and regularly the data of packing are sent to personal hand-held terminal with wireless communication mode;
Step 4, the data that hand-hold type signals collecting described in personal hand-held terminal graphic software platform and treatment facility send.
8. digital television radio-frequency signal analytical method according to claim 7, it is characterized in that, the data that in described step 3, demodulation produces comprise MER, BER, C/N, Mu l t i-path, field intensity and transport stream, and described step 4 also comprises: carry out decoding to the transport stream after demodulation and play in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410116381.XA CN103888759B (en) | 2014-03-26 | 2014-03-26 | Digital television radio-frequency signal analysis device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410116381.XA CN103888759B (en) | 2014-03-26 | 2014-03-26 | Digital television radio-frequency signal analysis device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103888759A CN103888759A (en) | 2014-06-25 |
| CN103888759B true CN103888759B (en) | 2015-06-24 |
Family
ID=50957449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410116381.XA Active CN103888759B (en) | 2014-03-26 | 2014-03-26 | Digital television radio-frequency signal analysis device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103888759B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101397035B1 (en) * | 2007-11-30 | 2014-05-20 | 엘지전자 주식회사 | Terminal and method of supporting broadcasting technology therein |
| KR101562536B1 (en) * | 2008-11-05 | 2015-10-22 | 삼성전자주식회사 | Broadcasting receiving apparatus and control method thereof |
| CN102523474A (en) * | 2011-10-20 | 2012-06-27 | 江西省南城县网信电子有限公司 | Signal receiving test system based on digital television terrestrial broadcasting (DTTB) |
| CN102882618A (en) * | 2012-09-05 | 2013-01-16 | 北京数字电视国家工程实验室有限公司 | System and method for monitoring radio and television coverage network |
-
2014
- 2014-03-26 CN CN201410116381.XA patent/CN103888759B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103888759A (en) | 2014-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105813124A (en) | Performance test method and system of WIFI and/or LTE terminal device | |
| CN102882618A (en) | System and method for monitoring radio and television coverage network | |
| CN105610522A (en) | Detection system and method for universal Beidou radio frequency module | |
| CN208539913U (en) | The test device of communication equipment | |
| CN102279321A (en) | Portable low-frequency/very-low-frequency electromagnetic wave signal intensity detection device | |
| CN102843591B (en) | A kind of method of synchronous broadcasting TV and mobile terminal | |
| CN103679356A (en) | Method and system combining teleworking with network maintenance | |
| CN201804103U (en) | Portable and integrated direction-finding mainframe with radio monitoring | |
| CN110139209A (en) | A kind of vehicle module for 5G communication optimization | |
| CN101706536A (en) | Electromagnetic wave automatic monitoring and analysis system based on GIS | |
| CN102946272B (en) | Separated type optical testing device based on commonly-used mobile intelligent terminal | |
| CN204305040U (en) | Hand-held railway disturbed test device | |
| CN105611535A (en) | Positioning device and positioning method for pseudo base-station | |
| CN103267901A (en) | Electromagnetic wave strength detection device and method | |
| Rahman et al. | A practical approach to spectrum analyzing unit using rtl-sdr | |
| CN202535544U (en) | Hand-hold monitor used in monitoring system | |
| CN1897507B (en) | Electric tester and testing method for SCDMA system | |
| CN103888759B (en) | Digital television radio-frequency signal analysis device and method | |
| CN101806911A (en) | Ionosphere scintillation monitoring method and ionosphere scintillation monitor | |
| CN203968154U (en) | A kind of long-range kernel phase system based on wireless Internet | |
| CN103152112A (en) | Polarization MIMO channel measurement device with compact structure | |
| CN207802200U (en) | Ground digital television signal quality coverage test instrument | |
| CN103618889A (en) | Digital intermediate frequency module used for satellite television signal monitoring system | |
| CN204556741U (en) | Frequency converter debugging acid | |
| CN103368672B (en) | The detection method of portable mobile wireless Multiple Channel Analysis instrument and quality of wireless channel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |