CN101582199A - Wireless remote control television system - Google Patents
Wireless remote control television system Download PDFInfo
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- CN101582199A CN101582199A CNA2009101079537A CN200910107953A CN101582199A CN 101582199 A CN101582199 A CN 101582199A CN A2009101079537 A CNA2009101079537 A CN A2009101079537A CN 200910107953 A CN200910107953 A CN 200910107953A CN 101582199 A CN101582199 A CN 101582199A
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- remote control
- wireless remote
- television system
- decoding chip
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Abstract
The invention discloses a wireless remote control television system comprising a transmitting part and a receiving part, wherein the transmitting part is a remote controller which mainly transmits wireless remote control signals, and the receiving part mainly comprises a receiving module that comprises an antenna E1, a decoding chip U1A, a filter and frequency selective network connected with the decoding chip U1A, a first crystal oscillator Y6 and a second crystal oscillator Y7. The wireless remote control television system transfers the remote control signals by wireless (radio frequency ) signals, thereby realizing long-distance wireless remote control; the transmitting power thereof is great and the penetration capability is strong, the remote control distance can be up to tens of meters, and the remote control is non-directional and can be carried out without the face-to-face operation, thereby increasing the remote control angle and further solving the defects of common infrared red remote control.
Description
[technical field]
The present invention relates to technical field of television sets, particularly a kind of wireless remote control television system.
[background technology]
Along with the continuous development of network, mechanics of communication, the electronic product that various 3C merge has appearred.LCDTV is as the leading product of household electric appliances, and with its strong functions, high quality images, sound are received consumers in general's favor.As: super codec functions, smooth and easy broadcast RMVB, the h.264 video of compressed format; IPTV, televisor links to each other with network, also can experience the excellence of network when appreciating TV programme.Along with growth in the living standard, the appearance and modeling of televisor, usability also become the focus that the consumer pays close attention to.Traditional televisor adopts infrared receiving terminal to receive remote signal, infrared receiving terminal has strict requirement to structure, in order to satisfy its reception and structure, need on panel shell of television, perforate expose the reception head, wasting space not only, influence attractive in appearancely, increase extra work simultaneously, but also can or receive the contacting of head and face-piece because of the deviation of punching apart from causing remote control insensitive.The infrared signal remote control distance is short, is no more than 8m, and the remote control angle is little, penetration capacity is poor, secondly, and the emissive power of infrarede emitting diode generally all less (about 100mW), so the signal that infrared receiving diode receives is fainter, cause remote control insensitive easily.
[summary of the invention]
For addressing the above problem, fundamental purpose of the present invention is to provide a kind of wireless remote control television system.
For achieving the above object, technical scheme of the present invention is:
A kind of wireless remote control television system, include radiating portion and receiving unit, wherein radiating portion is a telepilot, main emission wireless remote control signal, and receiving unit mainly includes receiver module, and receiver module includes antenna E1, decoding chip U1A, connects filtering and frequency selection network and first, second crystal oscillator Y6, the Y7 of decoding chip U1A; Antenna E1 receives the wireless carrier signal that telepilot is sent, be transferred to decoding chip U1A after filtering by filtering and frequency selection network, the frequency-selecting, by decoding chip U1A this wireless remote control signal is carried out mixing, intermediate frequency amplification, detection, at last remote signal is converted to the digital signal that CPU can discern.
Compared to prior art, the present invention transmits remote signal by wireless (radio frequency) signal, realizes long-distance wireless remote control.Its emissive power is big, and penetration capacity is strong, and remote control distance far reaches tens of rice, and is non-directional, and not remote control has face-to-face increased the remote control angle, thereby has solved the defective that common infrared remote control exists.
[description of drawings]
Fig. 1 is the circuit theory diagrams of the receiver module of wireless remote control television system of the present invention.
[embodiment]
A kind of wireless remote control television system of the present invention is transmitted remote signal by wireless (radio frequency) signal, realizes long-distance wireless remote control.The carrier frequency of wireless signal is 2.4GHz, and emissive power is big, and penetration capacity is strong, and remote control distance far reaches tens of rice, and is non-directional, and not remote control has face-to-face increased the remote control angle, thereby has solved the defective that common infrared remote control exists.Its wireless remote control receiving end adopts antenna E1 to receive, and this antenna E1 only is a copper sheet that is drawn in the similar antenna E1 on the pcb board, and no matter the position and the direction of its placement more need not perforate on face-piece, just remote control delicately.
Wireless remote control television system of the present invention includes radiating portion and receiving unit, and wherein radiating portion is a telepilot, mainly launches the wireless remote control signal.The digital key assignments of corresponding one 16 system of each button of telepilot, when the user presses any key, its corresponding key assignments is modulated onto wireless carrier, and the transmission antennas transmit of wireless carrier by telepilot inside is to aerial.Receiving unit includes receiver module, receiver module receives this carrier signal by antenna E1, amplifies and detection through filtering, intermediate frequency, and demodulating data-signal is remote signal, this remote signal is identical with the remote signal that traditional infrared receiving terminal sends, and is entered into CPU and decodes.Because the storer of CPU inside has had the key assignments of each button correspondence of telepilot and the function that each key-value pair of software control is answered, CPU to the digital signal decoding that receives after, with the numeric ratio in itself and the storer, when decoded numerical value equals certain key assignments in the storer, CPU just calls the power function that this key-value pair is answered, thereby realizes this function.
See also shown in Figure 1ly, receiver module includes antenna E1, decoding chip U1A, connects filtering and frequency selection network and first, second crystal oscillator Y6, the Y7 of decoding chip U1A.Antenna E1 receives the wireless carrier signal that Digiplex is sent, be transferred to decoding chip U1A after filtering by filtering and frequency selection network, the frequency-selecting, by decoding chip U1A this wireless remote control signal is carried out mixing, intermediate frequency amplification, detection, at last remote signal is converted to the digital signal that CPU can discern.Wherein, filter network include the 4th inductance L 4 and connect respectively and the 4th inductance L 4 and ground between the 7th, the 8th capacitor C 187, C188.The 4th inductance L 4 and the 7th, the 8th capacitor C 187, C188 constitute a π type filter network, and described antenna E1 connects this π type filter network.Frequency selection network include a LC filtering circuit, with the 2nd LC filtering circuit of LC filtering circuit series connection and the 3rd, the 5th coupling capacitance C183, the C185 that is connected with decoding chip U1A respectively.A described LC filtering circuit include second inductance L 2, with the 6th capacitor C 186 of second inductance L 2 formation in parallel LC filtering circuits; Described the 2nd LC filtering circuit include the 3rd inductance L 3, with the 4th capacitor C 184 of the 3rd inductance L 3 formation in parallel LC filtering circuits.These two LC filtering circuit series connection, the function of realization frequency-selecting, the signal behind the frequency-selective filtering enters decoding chip U1A through the 3rd, the 5th coupling capacitance C183, C185.The described first crystal oscillator Y6 provides oscillation frequency for detection module, the A/D modular converter of decoding chip U1A inside; And the described second crystal oscillator Y7 provides clock signal for the inner intermediate frequency amplification module of decoding chip U1A.The I/O mouth of decoding chip U1A is connected with the 6th resistance R 266, to increase the electric current of I/O delivery outlet, improves driving force.Filtering and frequency selection network carry out High frequency filter to the wireless signal that receives, frequency-selecting, and coupling filtering obtains useful wireless remote control signal.The wireless remote control signal is by decoding chip U1A, and through mixing, intermediate frequency amplifies, demodulation, the A/D conversion is exported the digital remote control signal that CPU can discern by the I/O mouth of decoding chip U1A, this signal is directly imported CPU through the 7th resistance R 267, thereby realizes wireless remote control.
Most preferred embodiment described above only is that the present invention is set forth and illustrates, but is not limited to disclosed any concrete form, and it is possible carrying out many modifications and variations.
Claims (7)
1. wireless remote control television system, include radiating portion and receiving unit, it is characterized in that: radiating portion is a telepilot, main emission wireless remote control signal, and receiving unit mainly includes receiver module, and receiver module includes antenna (E1), decoding chip (U1A), connects filtering and frequency selection network and first, second crystal oscillator (Y6, Y7) of decoding chip (U1A); Wherein, antenna (E1) receives the wireless carrier signal that telepilot is sent, be transferred to decoding chip (U1A) after filtering by filtering and frequency selection network, the frequency-selecting, by decoding chip (U1A) this wireless remote control signal is carried out mixing, intermediate frequency amplification, detection, at last remote signal is converted to the digital signal that CPU can discern.
2. wireless remote control television system as claimed in claim 1 is characterized in that: described filter network include the 4th inductance (L4) and connect respectively and the 4th inductance (L4) and ground between the 7th, the 8th electric capacity (C187, C188).
3. wireless remote control television system as claimed in claim 2 is characterized in that: described the 4th inductance (L4) constitutes a π type filter network with the 7th, the 8th electric capacity (C187, C188), and described antenna (E1) connects this π type filter network.
4. wireless remote control television system as claimed in claim 3 is characterized in that: described frequency selection network include a LC filtering circuit, with the 2nd LC filtering circuit of LC filtering circuit series connection and the 3rd, the 5th coupling capacitance (C183, C185) that is connected with decoding chip (U1A) respectively.
5. wireless remote control television system as claimed in claim 4 is characterized in that: a described LC filtering circuit includes the 6th electric capacity (C186) of second inductance (L2), formation LC filtering circuit in parallel with second inductance (L2); Described the 2nd LC filtering circuit includes the 4th electric capacity (C184) of the 3rd inductance (L3), formation LC filtering circuit in parallel with the 3rd inductance (L3).
6. wireless remote control television system as claimed in claim 5 is characterized in that: described first crystal oscillator provides oscillation frequency for detection module, the A/D modular converter of decoding chip U1A inside.
7. wireless remote control television system as claimed in claim 6 is characterized in that: the I/O mouth of described decoding chip (U1A) is connected with the 6th resistance (R266), to increase the electric current of I/O delivery outlet, improves driving force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910107953A CN101582199B (en) | 2009-06-12 | 2009-06-12 | Wireless remote control television system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910107953A CN101582199B (en) | 2009-06-12 | 2009-06-12 | Wireless remote control television system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101582199A true CN101582199A (en) | 2009-11-18 |
| CN101582199B CN101582199B (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910107953A Expired - Fee Related CN101582199B (en) | 2009-06-12 | 2009-06-12 | Wireless remote control television system |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917564A (en) * | 2010-08-12 | 2010-12-15 | 圆刚科技股份有限公司 | Television card/box and ratio frequency remote control receiving device |
| CN106658132A (en) * | 2017-02-08 | 2017-05-10 | 珠海经济特区金品电器有限公司 | Remote non-directional TV set remote control device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2233645Y (en) * | 1995-04-12 | 1996-08-21 | 东南大学 | Multipoint transmitting and receiving system |
| US6169943B1 (en) * | 1999-07-14 | 2001-01-02 | Eaton Corporation | Motor vehicle diagnostic system using hand-held remote control |
| CN1444392A (en) * | 2002-03-12 | 2003-09-24 | 喻湘晖 | TV remote controller and its remote control method |
| CN1285209C (en) * | 2004-04-15 | 2006-11-15 | 汉王科技股份有限公司 | Intelligence remote controller able to receive multiple informations |
| CN2731868Y (en) * | 2004-08-12 | 2005-10-05 | 刘江华 | Remote controller able to receive public information |
| CN100362857C (en) * | 2004-11-19 | 2008-01-16 | 海信集团有限公司 | Radio audio-visual television receiver |
-
2009
- 2009-06-12 CN CN200910107953A patent/CN101582199B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917564A (en) * | 2010-08-12 | 2010-12-15 | 圆刚科技股份有限公司 | Television card/box and ratio frequency remote control receiving device |
| CN106658132A (en) * | 2017-02-08 | 2017-05-10 | 珠海经济特区金品电器有限公司 | Remote non-directional TV set remote control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101582199B (en) | 2012-10-17 |
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Granted publication date: 20121017 Termination date: 20150612 |
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