CN102164275B - Speedily searching satellite tuner and satellite television system - Google Patents
Speedily searching satellite tuner and satellite television system Download PDFInfo
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- CN102164275B CN102164275B CN201110090664A CN201110090664A CN102164275B CN 102164275 B CN102164275 B CN 102164275B CN 201110090664 A CN201110090664 A CN 201110090664A CN 201110090664 A CN201110090664 A CN 201110090664A CN 102164275 B CN102164275 B CN 102164275B
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- 238000000034 method Methods 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 4
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Abstract
The invention provides a speedily searching satellite tuner and a satellite television system, relates to the technical field of satellite television signal receiving devices, and particularly relates to the improvement of a structure of a satellite tuner. The technical problem that the dish antenna is inconveniently installed and adjusted in the traditional manner is solved. The speedily searching satellite tuner comprises a support platform shell, wherein a satellite tuner main body, a signal demodulator circuit and a signal indication device are arranged in the support platform shell. The required cost is low, the stability for installing the traditional dish antenna is high, the special external device is unnecessary, and the operation is simple. A signal of the satellite signal strength is fed back to the signal demodulator circuit by a satellite signal receiver; the signal demodulator circuit sends an indication signal according to the signal of the satellite signal strength, so as to drive the signal indication device; and the signal indication device sends a corresponding antenna status signal for reminding the installation personnel if the dish antenna is at optimum mounting position and angle at real time.
Description
Technical field
The present invention relates to satellite TV signal receiving system technical field, be specifically related to the architecture advances aspect of satellite tuner.
Background technology
The satellite tuner is claimed lnb (LNB) again.Its internal circuit comprises low noise frequency converter and low-converter, accomplishes low noise and amplifies and frequency conversion function, simultaneously as MMDS (multichannel multiple spot distribution services also is called wireless cable) receiving front-end.The operation principle of satellite tuner is to be used to reduce satellite frequency, for example 3.4 to 4.2GHz (C-bands) or 11.7 to 12.75GHz (Ku wave band) or 20 to 22GHz (Ka wave bands) is reduced to the intermediate-freuqncy signal of 950～2150MHZ frequency of conventional satellite signal receiver institute ability demodulation.The satellite-signal receiver is meant that with satellite tuner output conversion of signals be the electronic equipment of AV signal or radiofrequency signal.The satellite-signal receiver carries out demodulation to this satellite high frequency head output signal, draws satellite-signal intensity indicating signal, thereby and amplifies and double conversion is handled and can on television set, be shown again.
The distance of geostationary satellite and the earth that is generally used for television broadcasting is greater than 30000KM; Will weaken when therefore the signal of satellite arrives ground; In order to increase the signal that the satellite tuner receives, generally all need establish a teledish, the satellite tuner is arranged on the reflector focus of teledish; Thereby; The placement angle of teledish directly has influence on the intensity of receiving satellite signal, handles best placement angle in order to make teledish, when teledish is installed, generally needs repeatedly test adjustment.The adjustment mode of traditional teledish generally needs two people to match; One of them people is the position and the angle of manual adjustment teledish out of doors; Another person informs the real-time satellite signal strength signal intensity indicating signal that shows on the outdoor installation people television set through intercom before indoor and television set that the satellite-signal receiver is connected.Traditional this adjustment mode not only needs personnel many, and feedback information is untimely between open air and the indoor occupant, thereby seems very inconvenience.
In order to solve above-mentioned inconvenience; A lot of corresponding solutions are arranged on the market, but all have some shortcoming, too high such as the solution cost; As use the single-chip microcomputer control that in tuner, performs an analysis; Or poor stability, or solution needs external equipment, or the adjustment operation of equipment is complicated or the like.
Summary of the invention
In sum, the objective of the invention is to solve the satellite tuner and the satellite TV system thereof of a kind of quick search television signal that has the technical problem of inconvenience when traditional approach is installed the adjustment teledish and propose.
For solving technical problem proposed by the invention; The technical scheme that adopts is: a kind of satellite tuner of quick search television signal; Include a supporting platform housing; In the supporting platform housing, be provided with satellite tuner body, it is characterized in that: also be provided with signal demodulating circuit and signal indicating device in the described supporting platform housing; Described signal demodulating circuit is used for the satellite-signal intensity indicating signal that the receiving satellite signal receiver returns modulated, demodulates accordingly then with satellite tuner body and receives the index signal that satellite-signal intensity indicating signal is associated; Described signal indicating device is connected with signal demodulating circuit, and the intensity of the index signal that is used for demodulating according to signal demodulating circuit is made corresponding antenna condition signal.
The demodulation method of described signal demodulating circuit comprises the corresponding demodulation method of communication modulation method of all and satellite-signal receiver; Wherein said communication modulation method mainly comprises: 1. analog modulation method: frequency modulation(FM), phase modulated; 2. Ditital modulation method: pulse modulation, data-modulated; 3. pulse modulation method: pulse frequency modulation; 4. comprehensive above modulator approach.
Above the whole bag of tricks all need not use single-chip microcomputer to make any analysis and Control.
When described signal indicating device is LED light, described antenna condition signal include long bright, glimmer and extinguish; When described signal indicating device was buzzer, described antenna condition signal included yowl, is interrupted and stops.
The shared coaxial cable of described signal demodulating circuit and satellite tuner body.
Described signal demodulating circuit is integrated in the satellite tuner body.
Described signal demodulating circuit mainly is a filter circuit of being made up of triode.
Use the satellite TV system of above-mentioned satellite tuner, mainly by teledish, be located at the satellite tuner of teledish top and be located at indoor satellite-signal receiver three parts that are connected with television set and form; Described teledish is collected satellite-signal; And be pooled on the satellite tuner; The satellite tuner amplifies C-band or KU band signal and be transformed into the digital intermediate frequency signal of 950～2150MHZ frequency; And be sent on the satellite-signal receiver through coaxial cable, the satellite-signal receiver carries out demodulation to this digital intermediate frequency signal, draws satellite-signal intensity indicating signal; Thereby and amplify again and double conversion is handled and on television set, to be shown; It is characterized in that: described satellite-signal receiver is sent to satellite-signal intensity indicating signal in the satellite tuner through coaxial cable, carries out demodulation by the signal demodulating circuit in the satellite tuner, thus output and satellite intensity correlation index signal; Signal indicating device in the satellite tuner is according to index signal driving work, and signal indicating device is reminded the received signal strength signal intensity of user's satellite-signal receiver with the mode of luminous or sounding.
Described satellite-signal receiver sends satellite-signal intensity indicating signal in the satellite tuner signal demodulating circuit with analogue modulation system.
Described satellite-signal receiver sends satellite-signal intensity indicating signal in the satellite tuner signal demodulating circuit with digital modulation mode.
Described satellite-signal receiver sends satellite-signal intensity indicating signal in the satellite tuner signal demodulating circuit with the pulse modulation mode.
Beneficial effect of the present invention is: signal demodulating circuit and signal indicating device that the present invention increases in existing satellite tuner; Solve the defective that prior art exists, required cost is low, and it is good not influence classical dish-like shapes antenna mounting stability; Need be by the external equipment of special use, simple to operate.The satellite-signal intensity indicating signal that the satellite-signal receiver returns is to signal demodulating circuit; Signal demodulating circuit is made index signal according to satellite-signal intensity indicating signal; Thereby drive signal indicating device, signal indicating device are made corresponding antenna condition signal in real time and are reminded the installation personnel teledish whether to be in best position and angle.Need not to use perform an analysis the simpler modulator approach of control signal indication of microcontroller, if use microcontroller to have the high technical problem of cost.Above modulation circuit can prefabricatedly be combined into ASIC (application-specific integrated circuit (ASIC)) can be more tiny and cheap.
Description of drawings
Fig. 1 is a tuner perspective view of the present invention;
Fig. 2 is a tuner decomposition texture sketch map of the present invention;
Fig. 3 is a structural principle sketch map of the present invention;
Fig. 4 is an operation principle block diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing and preferred specific embodiment the present invention is done explanation further:
Shown in Fig. 1, Fig. 2 and Fig. 4; The satellite tuner 1 of a kind of quick search television signal of the present invention; Include a supporting platform housing 11, in supporting platform housing 11, be provided with satellite tuner body 12, signal demodulating circuit 13 and signal indicating device 14.
Described signal demodulating circuit 13 mainly is to be used for the satellite-signal intensity indicating signal that the receiving satellite signal receiver returns, and demodulates then with satellite tuner body 12 and receives the index signal that satellite-signal intensity indicating signal is associated.Described signal demodulating circuit 13 is connected with the satellite-signal receiver with satellite tuner body 12 shared coaxial cables; Because of satellite tuner body 12 differs bigger to IF signal frequency and the satellite-signal receiver that the satellite-signal receiver transmits to the satellite-signal intensity indicating signal frequency that signal demodulating circuit 13 transmits, can not exert an influence each other.Described signal demodulating circuit 13 mainly is a filter circuit of being made up of triode, and the satellite-signal intensity indicating signal that signal demodulating circuit 13 returns the satellite-signal receiver end transforms the index signal of direct current output.Described signal demodulating circuit 13 can also be a logic device, perhaps has the demodulator circuit of the accurate time set in crack, need not to use the simple modulation circuit of microcontroller.
And the satellite-signal receiver end turns back to that satellite signal strength signal intensity indicating signal not only can be a modulated-analog signal in the signal demodulating circuit 13, can also be digital modulation signals, or pulse-modulated signal, or multiple modulation signal is comprehensive.
Described signal indicating device 14 is connected with signal demodulating circuit 13, and the intensity of the index signal that is used for demodulating according to signal demodulating circuit 13 is made corresponding antenna condition signal.Described signal indicating device 14 can be a LED light 15, in order to increase water-tight property, on supporting platform housing 11, is provided with transparent cover 111, and LED light 15 is located in the transparent cover 111.Described antenna condition signal include long bright, glimmer and extinguish; For example: the signal that satellite tuner body 12 receives is better; Satellite tuner body 12 is also just better to the IF signal that the satellite-signal receiver transmits; The images displayed quality also just better on the television set; The satellite-signal intensity indicating signal that the satellite-signal receiver turns back in the signal demodulating circuit 13 is also just better, and the index signal that signal demodulating circuit 13 transmits to signal indicating device 14 will become stable direct current output, and LED light 15 also will be in the bright state of a kind of length; Otherwise LED light 15 will be in a kind of state that glimmers or extinguish.Certainly, in the practical implementation process, the operating state of LED light 15 also can opposite mode be pointed out, and signal is good, and LED light 15 is in extinguishes state.
In addition; Described signal indicating device 14 can be outside the above-mentioned LED light, can also be buzzer, and the index signal that signal demodulating circuit 13 demodulates drives the drive circuit of buzzer; Make buzzer send the sound, can reach alert signal state purpose equally.When signal indicating device 14 was buzzer, the antenna condition signal included yowl, is interrupted and stops so.Certainly, in the practical implementation process, also can be LED light and the combining of buzzer.
Shown in Fig. 3 and Fig. 4; Use the satellite TV system of the satellite tuner 1 of foregoing a kind of quick search television signal; Its chief component also includes except described satellite tuner 1: teledish 2 be located at 4 three parts of the indoor satellite-signal receiver that is connected with television set 3.Described satellite tuner 1 is fixedly mounted on the reflector focus of teledish 2 tops; The satellite-signal of the synchronous telecasting satellite 6 that teledish 2 will be collected; Reflection is pooled on the satellite tuner 1; Described satellite tuner 1 amplifies and is transformed into the digital intermediate frequency signal of 950～2150MHZ frequency with C-band or KU band signal, and is sent on the satellite-signal receiver 4 through coaxial cable 5, and 4 pairs of these digital intermediate frequency signals of satellite-signal receiver carry out demodulation; Draw satellite-signal intensity indicating signal; Thereby and amplify again and double conversion is handled and to be shown that on television set simultaneously, described satellite-signal receiver 4 is sent to satellite-signal intensity indicating signal in the satellite tuner 1 through this coaxial cable 5; Carry out demodulation by the signal demodulating circuit in the satellite tuner 1; Thereby output and satellite intensity correlation index signal, the signal indicating device in the satellite tuner 1 is according to index signal driving work, and signal indicating device is reminded the received signal strength signal intensity of user's satellite-signal receiver with the mode of luminous or sounding.Thereby implement the installation that operating personnel just can accomplish teledish 2 out of doors.And described satellite-signal receiver can be with analogue modulation system, digital modulation mode, pulse modulation mode modulated satellite signals intensity indicating signal, and sends it in the satellite tuner signal demodulating circuit.
Claims (10)
1. the satellite tuner of a quick search television signal includes a supporting platform housing, in the supporting platform housing, is provided with satellite tuner body, it is characterized in that: also be provided with signal demodulating circuit and signal indicating device in the described supporting platform housing; Described signal demodulating circuit is used for the satellite-signal intensity indicating signal that the receiving satellite signal receiver returns modulated, demodulates accordingly then with satellite tuner body and receives the index signal that satellite-signal intensity indicating signal is associated; Described signal indicating device is connected with signal demodulating circuit, and the intensity of the index signal that is used for demodulating according to signal demodulating circuit is made corresponding antenna condition signal.
2. the satellite tuner of a kind of quick search television signal according to claim 1 is characterized in that: the demodulation method of described signal demodulating circuit comprises the corresponding demodulation method of communication modulation method of all and satellite-signal receiver; Wherein said communication modulation method mainly comprises: 1. analog modulation method: frequency modulation(FM), phase modulated; 2. Ditital modulation method: pulse modulation, data-modulated; 3. pulse modulation method: pulse frequency modulation; 4. comprehensive above modulator approach.
3. the satellite tuner of a kind of quick search television signal according to claim 1 is characterized in that: when described signal indicating device is LED light, described antenna condition signal include long bright, glimmer and extinguish; When described signal indicating device was buzzer, described antenna condition signal included yowl, is interrupted and stops; Described signal indicating device can also be above-mentioned two kinds combination.
4. the satellite tuner of a kind of quick search television signal according to claim 1 is characterized in that:
The shared coaxial cable of described signal demodulating circuit and satellite tuner body.
5. the satellite tuner of a kind of quick search television signal according to claim 1 is characterized in that: described signal demodulating circuit is integrated in the satellite tuner body.
6. the satellite tuner of a kind of quick search television signal according to claim 1 is characterized in that: described signal demodulating circuit mainly is a filter circuit of being made up of triode or integrated circuit; Described signal demodulating circuit is logic device or band-gap reference time set perhaps.
7. an application rights requires the satellite TV system of 1～6 each described satellite tuner, mainly by teledish, be located at each described satellite tuner of claim 1～6 of teledish top and be located at indoor satellite-signal receiver three parts that are connected with television set and form; Described teledish is collected satellite-signal; And be pooled on the satellite tuner; The satellite tuner amplifies C-band or KU band signal and be transformed into the digital intermediate frequency signal of 950～2150MHZ frequency; And be sent on the satellite-signal receiver through coaxial cable, the satellite-signal receiver carries out demodulation to this digital intermediate frequency signal, draws satellite-signal intensity indicating signal; Thereby and amplify again and double conversion is handled and on television set, to be shown; It is characterized in that: described satellite-signal receiver is modulated into the communication modulation signal with satellite-signal intensity indicating signal and is sent in the satellite tuner through coaxial cable or with less radio-frequency, carries out corresponding demodulation by the signal demodulating circuit in the satellite tuner, thus output and satellite intensity correlation index signal; Signal indicating device in the satellite tuner is according to index signal driving work, and signal indicating device is reminded the received signal strength signal intensity of user's satellite-signal receiver with the mode of luminous or sounding.
8. satellite TV system according to claim 7 is characterized in that: described satellite-signal receiver sends satellite-signal intensity indicating signal in the satellite tuner signal demodulating circuit to comprise analogue modulation system at least.
9. satellite TV system according to claim 7 is characterized in that: described satellite-signal receiver sends satellite-signal intensity indicating signal in the satellite tuner signal demodulating circuit to comprise digital modulation mode at least.
10. satellite TV system according to claim 7 is characterized in that: described satellite-signal receiver sends satellite-signal intensity indicating signal in the satellite tuner signal demodulating circuit to comprise the pulse modulation mode at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110090664A CN102164275B (en) | 2011-04-12 | 2011-04-12 | Speedily searching satellite tuner and satellite television system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110090664A CN102164275B (en) | 2011-04-12 | 2011-04-12 | Speedily searching satellite tuner and satellite television system |
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| CN102164275A CN102164275A (en) | 2011-08-24 |
| CN102164275B true CN102164275B (en) | 2012-10-10 |
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| CN201110090664A Expired - Fee Related CN102164275B (en) | 2011-04-12 | 2011-04-12 | Speedily searching satellite tuner and satellite television system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102625175B (en) * | 2012-03-05 | 2014-12-10 | 深圳创维数字技术股份有限公司 | Television signal prompting method, corresponding device and system |
| CN103200459A (en) * | 2013-02-28 | 2013-07-10 | 深圳创维数字技术股份有限公司 | Method for adjusting antenna position and digital television terminal |
| CN106714005B (en) * | 2016-12-27 | 2019-08-13 | 深圳市九洲电器有限公司 | Satellite set top box data transmission method and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588115A (en) * | 2004-09-30 | 2005-03-02 | 无锡市科迪安科技有限公司 | Quick searching method and device for portable satellite receiver |
| CN2817089Y (en) * | 2005-04-03 | 2006-09-13 | 邓承志 | Hand-driven polar-axis seat for multi-satellite television receiving antenna |
| CN101902622A (en) * | 2009-05-26 | 2010-12-01 | 上海赛天通信技术有限公司 | Satellite beacon receiver |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996020562A1 (en) * | 1994-12-28 | 1996-07-04 | E Guide, Inc. | Apparatus and methods for extracting data from video signals |
| TR201007296T1 (en) * | 2008-12-31 | 2011-01-21 | Neta Elektroni̇k Ci̇hazlar Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ | High-performance mobile satellite receiver antenna and associated system. |
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2011
- 2011-04-12 CN CN201110090664A patent/CN102164275B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588115A (en) * | 2004-09-30 | 2005-03-02 | 无锡市科迪安科技有限公司 | Quick searching method and device for portable satellite receiver |
| CN2817089Y (en) * | 2005-04-03 | 2006-09-13 | 邓承志 | Hand-driven polar-axis seat for multi-satellite television receiving antenna |
| CN101902622A (en) * | 2009-05-26 | 2010-12-01 | 上海赛天通信技术有限公司 | Satellite beacon receiver |
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Owner name: YU TINGTING Free format text: FORMER OWNER: LI WEIQIANG Effective date: 20130422 Free format text: FORMER OWNER: LI WEIJI Effective date: 20130422 |
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Effective date of registration: 20130422 Address after: Ancient village new wood village of Pinghu town of Longgang District of Shenzhen city in Guangdong province 518000 Patentee after: Yu Tingting Address before: Room 3302A, No. 9 building, Hongkong cable TV Chinese Tsuen Wan Hoi Shing Road Patentee before: Li Weiqiang Patentee before: Li Weiji |
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