CN86100008A - The device of signals such as broadcasting additional channel transmitting electric load control - Google Patents
The device of signals such as broadcasting additional channel transmitting electric load control Download PDFInfo
- Publication number
- CN86100008A CN86100008A CN 86100008 CN86100008A CN86100008A CN 86100008 A CN86100008 A CN 86100008A CN 86100008 CN86100008 CN 86100008 CN 86100008 A CN86100008 A CN 86100008A CN 86100008 A CN86100008 A CN 86100008A
- Authority
- CN
- China
- Prior art keywords
- electric load
- additional channel
- load control
- described data
- signals
- 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.)
- Pending
Links
Abstract
The present invention relates to a kind of data equipment, utilize the gap of broadcast band to set up special-purpose supernarrow band transmission channel (1～5 hertz) or utilize the broadcasting station frequency band to add the herring bone Channel Transmission.Can be used for electric load control and signal transmission and other data of managing usefulness.The signal transmission is interference-free when low-power (0.1～0.5 watt) very.All more superior than sound carrier, work frequency carrier, ultrashort wave, satellite communication.
Description
There are shortcomings such as channel is crowded, interference is strong, expense is big, power consumption is big, transmission range is little respectively in the international and domestic data equipment that has used, modes such as sound carrier, work frequency carrier, ultrashort wave, satellite communication, optical-fibre communications.
The data equipment that the present invention relates to adopts frequency shift keying modulation and the super herring bone fast frequency shift keying benefit of the further performance of quick tracking filter, realizes the remote transfer of data of low-power thereby make full use of the shortwave frequency range.Have following characteristics: the frequency space in (one) shortwave frequency range all can utilize be easy to get permission interference and noise that designated lane (two) can utilize broadcasting station additional channel (three) short wave channel almost have no effect (four) allow radio station audio output useful signal in very wide level range, to change and need not to use complicated automatic gain control (five) ionosphere varying effect influence minimum, corresponding carrier frequency power can be dealt with frequency drift and can protect the demodulation by filter of super narrow-band by the quick tracking filter of very low (six) employing.
Fast tracking filter allows monolateral band to suppress between two of the carrier frequency formula shortwave transmitting-receivings frequency big step-out takes place still to catch the signal that the radio station audio output is covered by noise fast, and then carries out super herring bone tracking filter.So just greatly reduce in making and settlement or the radio station the generation of frequency and the accuracy and the stability requirement of replacement.As long as signal to noise ratio 〉=-10 of radio station audio output decibel, collection of letters function is used the time less than 10 seconds in ± 100 hertz frequency range, catch preparatory signal reliably.And and then frequency shift signal realized following the tracks of fast reliably and frequency discrimination, the mistake probability of acceptance is less than 10
-6, with quick tracking filter loop noise bandwidth be 3 hertz.
The present invention is applicable to wireless carrier and broadcast mode such as wired, is suitable for the ultrashort wave FM broadcasting especially, utilizes broadcasting additional channel transmission of data signals.Popularized the high-quality stereophonic FM broadcasting in the world, China has begun development, and utilization of the present invention can enlarge the f-m broadcast station scope of business and promote its development.Especially utilize its transmitting electric load control signal, scope is very extensive, has made full use of covering power and anti-co-channel interference ability that the broadcasting station possesses.
Embodiments of the invention: accompanying drawing is the device embodiment that a present invention utilizes f-m broadcast station additional channel transmitting electric load conditioning signal.(about special-purpose herring bone channel embodiment unexamined think need the time provide again) by the accent negative signal that electric dispatching office sends, deliver to the transmitter of f-m broadcast station by special circuit.This additional channel only occupies main carrier when broadcast program is arranged and is no more than 10% frequency deviation, but and absorb when no broadcast program.Can by the time control circuit control automatically, also can be and temporary transient Artificial Control according to the emergency of power scheduling.Transfer load signal to be broadcast to each and use electric unit by public transmitter, the controlled electric unit of using can receive with common fm broadcast receiver, extract from its frequency discriminator by narrow band filter again and transfer the lotus signal, send into the power information processor after the conversion such as the frequency that this signal process is necessary, level, impedance.The narrow-band transmission means of transferring the lotus signal is in order to compensate the signal to noise ratio reduction that this additional channel is broadcasted frequently with respect to the single channel tone.
Claims (5)
1, a kind of data device comprises that transducer, signal converter, modulator, transmitter, recipient, demodulator, message handler is characterized in that having the narrow frequency band sending and receiving device in broadcast band gap.
2,, it is characterized in that utilizing the transceiver of f-m broadcast station additional channel transmission signals as claim 1 described data device.
3, it is characterized in that having electric load conditioning signal device as claim 2 described data devices.
4, it is characterized in that having the quick tracking filter of super herring bone in its demodulator as claim 1 described data device.(1～5 hertz)
5, it is characterized in that having very low-power dispensing device as claim 4 described data devices.(0.1～0.5 watt)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86100008 CN86100008A (en) | 1986-01-06 | 1986-01-06 | The device of signals such as broadcasting additional channel transmitting electric load control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86100008 CN86100008A (en) | 1986-01-06 | 1986-01-06 | The device of signals such as broadcasting additional channel transmitting electric load control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86100008A true CN86100008A (en) | 1987-07-15 |
Family
ID=4800849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86100008 Pending CN86100008A (en) | 1986-01-06 | 1986-01-06 | The device of signals such as broadcasting additional channel transmitting electric load control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86100008A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101569188A (en) * | 2007-02-26 | 2009-10-28 | 三星电子株式会社 | Digital transmission system for transmitting additional data and method thereof |
-
1986
- 1986-01-06 CN CN 86100008 patent/CN86100008A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101569188A (en) * | 2007-02-26 | 2009-10-28 | 三星电子株式会社 | Digital transmission system for transmitting additional data and method thereof |
| CN101569188B (en) * | 2007-02-26 | 2013-04-24 | 三星电子株式会社 | Digital transmission system for transmitting additional data and method thereof |
| US8891674B2 (en) | 2007-02-26 | 2014-11-18 | Samsung Electronics Co., Ltd. | Digital transmission system for transmitting additional data and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |