CN1967613A - Automatic frequency-hopping remote controller - Google Patents
Automatic frequency-hopping remote controller Download PDFInfo
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- CN1967613A CN1967613A CN 200510123281 CN200510123281A CN1967613A CN 1967613 A CN1967613 A CN 1967613A CN 200510123281 CN200510123281 CN 200510123281 CN 200510123281 A CN200510123281 A CN 200510123281A CN 1967613 A CN1967613 A CN 1967613A
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Abstract
An automatic frequency-hopping remote control device, when the remote control signal is disturbed during transmission, it automatically makes transduction. The remote control device comprises the corresponding transmitter and receiver, and the transmitter has the first signal transceiver device and input device with a number of channels issuing functions, and issues a remote control signal from the pre-set channel, by the trigger command of the input device. The receiver is the second signal transceiver device located on the electronic equipment, which can receive the remote control signal from the transmitter, and evaluates the received signal quality, and if the signal quality is poor, automatically switches to another receiving channel, and sends a transduction signal to the transmitter, to switch the transmitter to the corresponding channel also, and the next launch of the remote control signal also uses this channel.
Description
Technical field
The present invention relates to a kind of wireless remote control frequency-hopping arrangement, but particularly a kind of radio frequency of automatic frequency-hopping (RF) telechiric device.
Background technology
Suitable many of the application of telepilot (Remote Controller), as to the control of projector equipment, video recorder, televisor etc., wherein comparatively general to use the infrared signal transmission technology.But, the environment that infrared ray was suitable for is generally small-sized, enclosed areas, and for the control less demanding, that distance is short, infrared transmission is a good selection, but comparatively speaking, its shortcoming is arranged also: infrared transmission is as easy as rolling off a log to be subjected to the restriction of distance and stopping of barrier.
Particularly, infrared ray is a kind of wireless transmission method cheaply.Infrared ray forwards sends signal with narrow segment angle (about 60 degree angles) because ultrared wavelength is longer, make its penetration power and reflectivity all extremely a little less than, be difficult to penetrate barrier or see through the reflection of wall and make receiving end finish the reception of signal smoothly.The emissive power of general infrared remote controller is lower in addition, and transmission range is very limited, in five meters, so the use of infrared remote controller can be subjected to the restriction of emission angle, distance and barrier.
Recently, it is ripe that the application of RF (Radio Frequency) radio-frequency technique is tending towards, and many micro radio electrical equipment equipment all carry out the signal transmission through radio frequency, reaches the signal transmission of omni-directional, high penetrating power and high reflectivity by means of the characteristic of frequency electromagnetic waves.
But, also there is the problem of interference in radiofrequency signal, and most interference is not to come own factor, but extraneous interference, as: produce mutual interference mutually with other wireless product that uses same frequency band, be subjected to the influence that wireless device is popularized day by day recently, such as wireless network, wireless telephone, wireless image-sound signal transmission system etc., make the radiofrequency signal interference phenomenon serious day by day, cause the signal of transmitting terminal to receive by receiving end smoothly.
As previously mentioned, if telepilot is when carrying out remote control with infrared mode, promptly can't break away from the restriction of space, distance, radio-frequency technique is than less-restrictive that infrared ray ran into by contrast, economic benefit is higher, but will in the face of with the frequency band product around environmental limit, so the urgent need a kind of telepilot that can keep preferable remote signal quality.
Summary of the invention
A fundamental purpose of the present invention is to be to solve space, the distance limit that the infrared remote controller of prior art is subjected to, and has proposed a kind of with the device of radiofrequency signal as the transmission information of data sending terminal and data receiver.
Another object of the present invention is the channel signals interference problem that solves telepilot simultaneously.Because extraneous factor is irresistiblely, difficult to overcome and avoid, so the data sending terminal of automatic frequency-hopping remote controller of the present invention and data receiver have a plurality of channel predetermined, in transmission course, receiving end is judged the channel in using, and with the synchronous switching channels of transmitting terminal, guarantee that remote signal transmits unobstructed.
According to the present invention, can carry out the signal transmission to a plurality of receiving ends simultaneously by described transmission end.The signal data that should receive can't be judged for fear of each receiving end, identification code (ID Code) will be in signal, added to distinguish.
According to automatic frequency-hopping remote controller of the present invention, but automatically switching channels when the remote signal transmittance process is interfered, described device comprises: transmitting terminal comprises first signal receiving/transmission device and input media, by remote signal of triggering command emission of this input media; Receiving end, described receiving end is the secondary signal R-T unit of establishing in the electronic equipment, can receive remote signal from transmitting terminal, and after reception the assessment its signal quality, when signal quality is bad, the receiving channels that promptly automaticallyes switch, and send Frequency Hopping Signal to transmitting terminal, make it switch to identical transmitting channel, it is unobstructed to guarantee that signal transmits.
Description of drawings
Fig. 1 is the basic block scheme of control one to one of automatic frequency-hopping remote controller of the present invention;
Fig. 2 is the channel planning table of Fig. 1 transmitting terminal and receiving end;
Fig. 2 A is the channel editor of Fig. 2;
Fig. 3 is the process flow diagram of one embodiment of the invention;
Fig. 4 is that the one-to-many of automatic frequency-hopping remote controller of the present invention is controlled basic block scheme;
Fig. 4 A is the channel planning table of Fig. 4 transmitting terminal and receiving end.
In the accompanying drawing, the component list of each label representative is as follows:
10 transmitting terminals
11 first device for signalling
12 input medias
20 receiving ends
21 secondary signal R-T units
S1～s9 step
Embodiment
About technology contents of the present invention, characteristics and effect, below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail after, will become apparent.
The basic block scheme that Fig. 1 is the present invention under control model one to one.Telechiric device of the present invention is made up of corresponding sending terminal 10 and receiving end 20.Transmitting terminal 10 is generally telepilot, comprises first signal receiving/transmission device 11 of a plurality of channel emissive ability, and input media 12.By the triggering command of input media 12 with channel predetermined emission remote signal.Transmitting terminal 10 also can receive the signal of another fixed channel of being launched by other end, and then switches the channel of aforementioned radiofrequency signal by peripheral operation trigger pip emission, transmits with this channel when launching remote signal next time.Can further in remote signal, add product ID (Manufacture ID) in addition, increase the degree of discrimination of this radiofrequency signal.
Receiving end 20 secondary signal R-T unit 21 for establishing in the electronic equipment, can receive remote signal from transmitting terminal 10, and after reception the assessment its signal quality, when signal quality is bad, promptly switch receiving channels automatically in proper order or at random, and send Frequency Hopping Signal to transmitting terminal 10 via aforesaid fixed channel, and make it switch transmitting channel synchronously, it is unobstructed to guarantee that signal transmits.
The present invention uses the RF radiofrequency signal, work in the ISM band 2.400GHz～2.483GHz of global general-use, so in transmitting terminal 10 and receiving end 20, all preset the different a plurality of channels of frequency for the signal transmission and receive, prevented that other same frequency band product from producing phase mutual interference and problem that the signal of the transmitting terminal 10 that causes can't successfully be received by receiving end 20.Transmission end 10 of the present invention and receiving end 20 default channels can be with reference to shown in Figure 2, the figure shows transmitting terminal 10 and be preset with 7 channel CH1～CH7, for instance: can be 2.410GHz, 2.412GHz ... Deng setting, corresponding receiving end 20 possesses equally to have and can be 2.410GHz, 2.412GHz ... Deng 7 channel CH1～CH7, the frequency of both corresponding channels all identical (as Fig. 2 A), only be reference at this channel number, channel number and frequency number are not limited only to this.So when signal quality is bad, receiving end 20 will switch to another receiving channels automatically in proper order or at random, and send Frequency Hopping Signal to transmitting terminal 10 by a fixed channel, make transmitting terminal 10 also switch to this channel accordingly, transmit with this channel during emission next time remote signal, thereby solved the problem of disturbing.So-called here signal quality is bad, is the critical value of setting an electric physical quantity, as signal/noise ratio (S/N ratio), but and is limited to this.When the signal to noise ratio (S/N ratio) of received signal was lower than this critical value, it was bad promptly to be judged to be signal quality.The channel of receiving end switches and can switch in proper order according to channel table shown in Figure 2, i.e. CH1 → CH2 → CH3 ..., or, disobey particular order with (random) mode switch at random.Fig. 3 is the process flow diagram of simulated operation explanation of the present invention.
Characteristics when using for clear performance are specific embodiment at this with the Remote projector equipment.At first, user's hand-held remote controller (transmitting terminal) desire control distant place projector equipment, and then push button on the telepilot as triggering command (step S1), after the related circuit of telepilot (transmitting terminal) receives this triggering command, is signal (step S2) through ovennodulation with this command signal by information coding, scrambled and encapsulation process, again by 11 emissions (step S3) of first signal receiving/transmission device.
After first signal receiving/transmission device 11 of telepilot transmits signal, promptly the secondary signal R-T unit 21 by receiving end 20 receives (step S4), and carry out subsequent demodulation to received signal and handle (step S5), after demodulation, assess its signal quality whether well (step S6).When signal quality is bad, secondary signal R-T unit 21 receiving channels (step S7) that promptly automaticallyes switch, and send Frequency Hopping Signal 24 to transmitting terminal 10 (step S8), make transmitting terminal 10 also corresponding switch to this channel, and when launching remote signal next time, transmit with this channel.If no signal is disturbed, then can carry out follow-up signal smoothly and handle.
Fig. 4 controls basic block scheme for one-to-many of the present invention.Identical with Fig. 1, first signal receiving/transmission device of transmitting terminal 10 can send a signal to different receiving end 20 ... Nn; Receiving end 20 ... the secondary signal R-T unit of Nn can receive the remote signal from transmitting terminal 10, and is separately positioned on the different devices.Can utilize product ID (Manufacture ID) to distinguish receiving end 20 ... Nn, and receiving end 20 ... Nn has the channel of different frequency bands separately, and shown in Fig. 4 A: receiving end 20 has channel CH1～CH7 that 2.401GHz, 2.403GHz, 2.405GHz etc. are provided with; Channel CH8～CH14 that receiving end Nn possesses 2.402GHz is arranged, 2.404GHz, 2.406GHz etc. are provided with, and transmitting terminal 10 has comprised the channel of this frequency band, makes receiving end 20 ... Nn can differentiate the radiofrequency signal that receive.If when having more receiving ends, the mode of analogizing with these gap frequency bands disposes and gets final product.If in environment, produce mutual interference mutually with other radiofrequency signal scope, extraneous signal is mixed mutually and mix with the signal of data source, then cause receiving end 20 ... Nn can't receive the remote signal from transmitting terminal 10, its signal quality of assessment after reception, when signal quality is bad, receiving end 20 ... the secondary signal R-T unit of the Nn receiving channels that promptly automaticallyes switch, and send Frequency Hopping Signal to transmitting terminal 10, make transmitting terminal 10 also corresponding switch to this channel, when launching remote signal next time, transmit with this channel.
The above, only be the preferred embodiments of the present invention, but can not limit the scope of the present invention with this, anyone simple equivalent of being done according to the present patent application claim and patent of invention description changes and modifies, and all should be included in the scope of the present invention.
Claims (8)
1. automatic frequency-hopping remote controller transmits information with radiofrequency signal, but when the remote signal transmittance process is interfered automatically switching channels, this telechiric device includes:
At least one transmitting terminal comprises first signal receiving/transmission device with a plurality of channel emissive ability and a fixed channel receiving ability, and input media, by the triggering command of described input media with channel predetermined emission remote signal;
Receiving end, comprise the secondary signal R-T unit, described secondary signal R-T unit has and the corresponding emissive ability of the receiving ability of described transmitting terminal, reach the corresponding receiving ability of emissive ability with described transmitting terminal, assess from the remote signal of described transmitting terminal and to the signal that is received in order to receive, when signal was bad, receiving channels promptly automaticallyed switch, and Frequency Hopping Signal is sent to described transmitting terminal by described fixed channel, make it that transmitting channel is switched to same channel.
2. automatic frequency-hopping remote controller as claimed in claim 1, wherein said receiving end carry out channel according to predefined procedure and switch.
3. automatic frequency-hopping remote controller as claimed in claim 1, the channel switching of wherein said receiving end is at random.
4. automatic frequency-hopping remote controller as claimed in claim 1, wherein said receiving end are a plurality of, and are arranged at respectively in the different equipment.
5. automatic frequency-hopping remote controller as claimed in claim 1, wherein said receiving end carries out in the following manner to the assessment that the remote signal that is received is carried out, promptly, set the critical value of an electric physical quantity, whether the electric physical quantity with received remote signal surpasses described critical value, as evaluation criteria.
6. automatic frequency-hopping remote controller as claimed in claim 5, wherein said electric physical quantity is signal/noise ratio.
7. automatic frequency-hopping remote controller as claimed in claim 1, wherein, adding in described remote signal and/or Frequency Hopping Signal has identification code, to increase the degree of discrimination of described signal.
8. automatic frequency-hopping remote controller as claimed in claim 1, wherein, described transmitting terminal further comprises the light source pilot lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510123281 CN1967613A (en) | 2005-11-15 | 2005-11-15 | Automatic frequency-hopping remote controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510123281 CN1967613A (en) | 2005-11-15 | 2005-11-15 | Automatic frequency-hopping remote controller |
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| CN1967613A true CN1967613A (en) | 2007-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200510123281 Pending CN1967613A (en) | 2005-11-15 | 2005-11-15 | Automatic frequency-hopping remote controller |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102843163A (en) * | 2011-06-23 | 2012-12-26 | 晨星软件研发(深圳)有限公司 | Wireless transmission method and wireless transmission system |
| US8494494B2 (en) | 2008-07-07 | 2013-07-23 | Lg Electronics Inc. | Mobile terminal and method of controlling mobile terminal |
| CN103942942A (en) * | 2014-04-16 | 2014-07-23 | 厦门圣欣电子科技有限公司 | Novel remote control system |
| CN104158562A (en) * | 2014-08-29 | 2014-11-19 | 四川长虹电子部品有限公司 | Frequency hopping method based on radio-frequency remote control system |
| CN105118254A (en) * | 2015-07-14 | 2015-12-02 | 芜湖美的厨卫电器制造有限公司 | Communication method used for remote controller to control household electrical appliance, and household electrical appliance system |
| CN105185074A (en) * | 2015-07-29 | 2015-12-23 | 芜湖美的厨卫电器制造有限公司 | Frequency hopping method for household appliance radio frequency remote control and household appliance radio frequency remote control system |
| CN106781344A (en) * | 2015-11-23 | 2017-05-31 | 王相臣 | A kind of novel three-frequency road wireless remote-control system |
| CN113133161A (en) * | 2020-01-16 | 2021-07-16 | 深圳威讯电子有限公司 | Wireless remote control method and remote control rotary searchlight |
-
2005
- 2005-11-15 CN CN 200510123281 patent/CN1967613A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8494494B2 (en) | 2008-07-07 | 2013-07-23 | Lg Electronics Inc. | Mobile terminal and method of controlling mobile terminal |
| CN102843163A (en) * | 2011-06-23 | 2012-12-26 | 晨星软件研发(深圳)有限公司 | Wireless transmission method and wireless transmission system |
| CN102843163B (en) * | 2011-06-23 | 2016-02-17 | 晨星软件研发(深圳)有限公司 | Radio transmitting method and wireless transmitting system |
| CN103942942A (en) * | 2014-04-16 | 2014-07-23 | 厦门圣欣电子科技有限公司 | Novel remote control system |
| CN104158562A (en) * | 2014-08-29 | 2014-11-19 | 四川长虹电子部品有限公司 | Frequency hopping method based on radio-frequency remote control system |
| CN105118254A (en) * | 2015-07-14 | 2015-12-02 | 芜湖美的厨卫电器制造有限公司 | Communication method used for remote controller to control household electrical appliance, and household electrical appliance system |
| CN105185074A (en) * | 2015-07-29 | 2015-12-23 | 芜湖美的厨卫电器制造有限公司 | Frequency hopping method for household appliance radio frequency remote control and household appliance radio frequency remote control system |
| CN106781344A (en) * | 2015-11-23 | 2017-05-31 | 王相臣 | A kind of novel three-frequency road wireless remote-control system |
| CN106781344B (en) * | 2015-11-23 | 2019-07-05 | 王相臣 | A kind of three channel wireless remote-control systems |
| CN113133161A (en) * | 2020-01-16 | 2021-07-16 | 深圳威讯电子有限公司 | Wireless remote control method and remote control rotary searchlight |
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