CN201750516U - Device for satellite television signal test - Google Patents
Device for satellite television signal test Download PDFInfo
- Publication number
- CN201750516U CN201750516U CN2010202404933U CN201020240493U CN201750516U CN 201750516 U CN201750516 U CN 201750516U CN 2010202404933 U CN2010202404933 U CN 2010202404933U CN 201020240493 U CN201020240493 U CN 201020240493U CN 201750516 U CN201750516 U CN 201750516U
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Abstract
The utility model relates to the field of a wireless radio frequency device, in particular to an electronic test device of radio frequency signals. The electronic test device of radio frequency signals is an electronic device aiming to the satellite television signal test. The device for satellite television signal test comprises a circuit board arranged in a device outer shell and port fittings on a panel. The circuit board comprises a tuner module, a DVB-S/DVB-S2 demodulation module, a CPU main-control chip unit, a keyboard and state indicating unit, a memory unit, an input-output interface unit, an LCD driving displaying module, a sound alarming module and a power source managing module. The utility model provides the device for combining first generation and second generation satellite television signal double test into one; the device not only can compatibly test first generation and second generation satellite television signals so that it is largely convenient for debug operation, but also is also provided with an LCD displaying screen and a loudspeaker horn so that test results can be visually tested in detail and the test efficiency is largely improved.
Description
Technical field
The utility model relates to less radio-frequency device field, relates in particular to the electronic test equipment of radiofrequency signal, is the electronic installation at the satellite TV signal test.
Background technology
Domestic television set need use satellite signal receiver in order to receive the TV programme of satellite transmits, adjust satellite signal receiver parameter, utilize data wire that satellite signal receiver is connected with television set just can to watch the TV programme that is received.The main parameter setting with satellite signal receiver of the quality of the TV programme display quality that receives is directly related, especially directly related with the setting of aerial position.
The engineering installation personnel uses the satellite-signal tester to adjust the location parameter value of satellite signal receiver antenna usually, but existing satellite-signal tester can not obtain the details of digital television program content, can only detect the existence of Digital Television satellite-signal, whether the signal that can not know for sure correctly obtains, because antenna can receive a lot of signals, but the signal strength signal intensity quality can be uneven, existing equipment can not accomplish selectively to adjust the optimum state of signal specific, but the blind right approximate state point of adjusting to; Therefore be not the accurate test to digital telstar signal, to adjust the parameter of user's satellite signal receiver also be inaccurate to test result certainly in view of the above, thereby be not easy to receive television image clearly; Can only debug repeatedly, efficient is low, and effect can not guarantee.On the other hand, existing satellite-signal tester can only be tested first generation satellite TV signal, and can not test second generation satellite TV signal.
The utility model content
Therefore, at above-mentioned deficiency, the utility model proposes a kind of can be to the device of the dual test unification of the first generation and second generation satellite TV signal, and possess the testing apparatus of DCO effect intuitively.
The technical solution of the utility model is:
The device that is used for the satellite TV signal test of the present utility model comprises being arranged at interior circuit board of crust of the device and the port accessory on the panel, and described circuit board comprises following circuit:
Tuner module receives the satellite TV signal input, and output electric property is connected in the DVB-S/DVB-S2 demodulation module;
The DVB-S/DVB-S2 demodulation module, input is electrically connected at above-mentioned tuner module, and output electric property is connected in CPU main control chip unit;
CPU main control chip unit, input is electrically connected at above-mentioned DVB-S/DVB-S2 demodulation module and power management module, output electric property is connected in LCD and drives display module and sound alarm module, and input and output are electrically connected at keyboard and state indicating member, memory cell;
Keyboard and state indicating member, input and output are electrically connected at above-mentioned CPU main control chip unit;
Memory cell, input and output are electrically connected at above-mentioned CPU main control chip unit;
LCD drives display module, and output electric property is connected in above-mentioned CPU main control chip unit;
Audible alarm module, output electric property are connected in above-mentioned CPU main control chip unit;
Power management module, input is electrically connected at above-mentioned CPU main control chip unit.
Further, the input and output of described CPU main control chip unit are electrically connected at the input/output interface unit, and described input/output interface unit is connected in the port accessory that is arranged on the panel.
Further, external serial ports keyboard of described keyboard and state indicating member and LED light, this LED light is arranged on the device panel.
Further, described memory cell comprises FLASH memory, eeprom memory and SDRAM memory.
Further, described LCD drives the external LCD display of display module.
Further, the audio frequency amplifier of described audible alarm module connects loud speaker, and this loud speaker is arranged on the device panel.
The utility model adopts as above technical scheme, a kind of device to the first generation and the dual test unification of second generation satellite TV signal is proposed, not only can the compatibility test first generation and the signal testing of second generation satellite TV signal, make things convenient for debugging operations greatly, and possess LCD display and loudspeaker horn, can test effect intuitively in detail and express, improve testing efficiency greatly.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model.
Embodiment
Now with embodiment the utility model is further specified in conjunction with the accompanying drawings.
Consult shown in Figure 1ly, the device that is used for satellite TV signal test of the present utility model comprises the circuit board that is arranged in the crust of the device and the port accessory on the panel, and described circuit board comprises following circuit:
Tuner module 1, the input of reception satellite TV signal, output electric property is connected in DVB-S/DVB-S2 demodulation module 2, adopts PHASE-LOCKED LOOP PLL TECHNIQUE, receive the DVB-S/DVB-S2 satellite-signal of the first generation and the second generation and down-convert to intermediate-freuqncy signal, deliver to the receiving demodulation unit and carry out digitized processing.
DVB-S/DVB-S2 demodulation module 2, input is electrically connected at above-mentioned tuner module 1, output electric property is connected in CPU main control chip unit 3, the signal of DVB-S/DVB-S2 demodulation module 2 via A/D conversion, 8PSK QPSK demodulation, deinterleaving, RS decoding, channel error correction, export mpeg transport stream (TS code stream) digital signal.
CPU main control chip unit 3, input is electrically connected at above-mentioned DVB-S/DVB-S2 demodulation module 2 and power management module 9, output electric property is connected in LCD and drives display module 7 and sound alarm module 8, and input and output are electrically connected at keyboard and state indicating member 4, memory cell 5.Preferably, the input and output of described CPU main control chip unit 4 are electrically connected at input/output interface unit 6, and described input/output interface unit 6 is connected in the port accessory that is arranged on the panel, as expansion interface.The CPU main control chip unit 3 embedded audio decoders of looking, the code stream analysis processing unit, the MPEG video data is decoded, pass through video encoder, again through the vision signal of video processing circuits outputting standard form, the mpeg audio data are decoded, through audio frequency output processing circuit output simulated audio signal, signal bit stream is handled, calculate, analyze, extraction characterization signal power, the quality quality, the error rate, carrier-to-noise ratio, signal level, data such as frequency spectrum, by digital coding and conversion, use signal strips, numeral intuitively shows, and points out with alarm sound.
Keyboard and state indicating member 4, input and output are electrically connected at above-mentioned CPU main control chip unit 4, described keyboard and state indicating member 4 external serial ports keyboard and LED light, and this LED light is arranged on the device panel.Keyboard and state indicating member 4 are used for various operation inputs, parameter setting, and LED intuitively shows various operating states.
LCD drives display module 7, and output electric property is connected in above-mentioned CPU main control chip unit 4, and described LCD drives display module 7 external LCD display.LCD drives 7 pairs of vision signals of display module and carries out digital coding, drives LCD and shows, plays the TV programme picture signal, data messages such as shows signal field intensity, level, the error rate, carrier-to-noise ratio, frequency spectrum.
Audible alarm module 8, output electric property are connected in above-mentioned CPU main control chip unit 4.The audio frequency amplifier of described audible alarm module 8 connects loud speaker, and this loud speaker is arranged on the device panel.Audible alarm module 8 is used to play TV programme sound, the operating state alarm.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in the spirit and scope of the present utility model that do not break away from appended claims and limited; can make various variations to the utility model in the form and details, be protection range of the present utility model.
Claims (6)
1. the device that is used for the satellite TV signal test comprises being arranged at interior circuit board of crust of the device and the port accessory on the panel, and it is characterized in that: described circuit board comprises following circuit:
Tuner module (1) receives the satellite TV signal input, and output electric property is connected in DVB-S/DVB-S2 demodulation module (2);
DVB-S/DVB-S2 demodulation module (2), input is electrically connected at above-mentioned tuner module (1), and output electric property is connected in CPU main control chip unit (3);
CPU main control chip unit (3), input is electrically connected at above-mentioned DVB-S/DVB-S2 demodulation module (2) and power management module (9), output electric property is connected in LCD and drives display module (7) and sound alarm module (8), and input and output are electrically connected at keyboard and state indicating member (4), memory cell (5);
Keyboard and state indicating member (4), input and output are electrically connected at above-mentioned CPU main control chip unit (3);
Memory cell (5), input and output are electrically connected at above-mentioned CPU main control chip unit (3);
LCD drives display module (7), and output electric property is connected in above-mentioned CPU main control chip unit (3);
Audible alarm module (8), output electric property are connected in above-mentioned CPU main control chip unit (3);
Power management module (9), input is electrically connected at above-mentioned CPU main control chip unit (3).
2. the device that is used for the satellite TV signal test according to claim 1, it is characterized in that: the input and output of described CPU main control chip unit (3) are electrically connected at input/output interface unit (6), and described input/output interface unit (6) is connected in the port accessory that is arranged on the panel.
3. the device that is used for the satellite TV signal test according to claim 1, it is characterized in that: described keyboard and external serial ports keyboard of state indicating member (4) and LED light, this LED light is arranged on the device panel.
4. the device that is used for the satellite TV signal test according to claim 1, it is characterized in that: described memory cell (5) comprises FLASH memory, eeprom memory and SDRAM memory.
5. the device that is used for the satellite TV signal test according to claim 1 is characterized in that: described LCD drives the external LCD display of display module (7).
6. the device that is used for the satellite TV signal test according to claim 1 is characterized in that: the audio frequency amplifier of described audible alarm module (8) connects loud speaker, and this loud speaker is arranged on the device panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202404933U CN201750516U (en) | 2010-06-24 | 2010-06-24 | Device for satellite television signal test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202404933U CN201750516U (en) | 2010-06-24 | 2010-06-24 | Device for satellite television signal test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201750516U true CN201750516U (en) | 2011-02-16 |
Family
ID=43585190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202404933U Expired - Fee Related CN201750516U (en) | 2010-06-24 | 2010-06-24 | Device for satellite television signal test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201750516U (en) |
-
2010
- 2010-06-24 CN CN2010202404933U patent/CN201750516U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: FUJIAN KIRISUN ELECTRONICS CO., LTD. Assignor: Fujian Baotong Technology Co., Ltd. Contract record no.: 2011350000083 Denomination of utility model: Device for satellite television signal test Granted publication date: 20110216 License type: Exclusive License Record date: 20110505 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20180624 |