CN101202594A - Method for exchanging frequency of wireless peripheral unit - Google Patents
Method for exchanging frequency of wireless peripheral unit Download PDFInfo
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- CN101202594A CN101202594A CNA2006101646717A CN200610164671A CN101202594A CN 101202594 A CN101202594 A CN 101202594A CN A2006101646717 A CNA2006101646717 A CN A2006101646717A CN 200610164671 A CN200610164671 A CN 200610164671A CN 101202594 A CN101202594 A CN 101202594A
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Abstract
The invention provides a method used for a wireless transmission device which can switch the channel communicated with a signal receiving device. The method includes calculating whether the times of continuously unsuccessful packet exceeds an index value through detecting a packet error rate and then ensures whether the wireless transmission device reaches the situation of needing to change frequency through detecting carrier intensity.
Description
Technical field
The present invention relates to a kind of frequency changing method that is applied on the wireless peripheral unit, particularly a kind of being applied on the wireless mouse in order to receive the method for the data that wireless mouse transmitted in order to the method and a kind of being applied on the receiver of conversion with receiver communication channel.
Background technology
Along with the maturation of Radio Transmission Technology, the device of many computer peripheral equipments, for example keyboard, mouse, earphone, microphone etc. have all developed with Wireless transmission mode and computer and have carried out the transmission of data or signal.And common computer peripheral device with wireless transmission, except with body as the wireless launcher, often also cooperate data or signal are passed in the computer with signal receiving device (for example for being connected in the receiver of computer slot).
But, when having a plurality of wireless peripheral units all to use same frequency zone (for example 2.4GHz) in a certain regional extent simultaneously, often will produce and disturb and have influence on normal transfer of data.In order to address the above problem, the method for many energy automatic frequency-hoppings just is suggested, and continues transmission data or signal in the hope of can be transformed into another channel automatically when original channel is interfered or take.
And known application is used for judging whether one of method of wanting converted channel on wireless peripheral unit, promptly be to utilize packet error (Packet Error Rate) as the standard of judging, its practice is to detect the intensity of interference signal in the channel by the radio frequency integrated circuit in the wireless peripheral unit (RFIC), produces to judge whether existing channel has to disturb.But, when the distance of wireless peripheral unit and computer is far away, be easy to just judge that wireless peripheral unit need change frequency, thereby it is too many and consume the power supply of wireless peripheral unit to cause changing number of times frequently.
In addition, another kind of known application is used for judging whether to want the method for converted channel on wireless peripheral unit, then is to utilize strength of carrier signal pointer (Received Signal Strength Indication; RSSI) judge whether existing channel is interfered or takies.But, when wireless peripheral unit because of must adopt comparatively the radio frequency integrated circuit of low order (RFIC) from cost consideration the time, what less level often can only be provided changes frequently that progression is used as converted channel whether foundation to wireless peripheral unit, thereby it is too high and be difficult for changing frequently to cause wireless peripheral unit to change frequently door, and then cause transmitting the loss of data.
Summary of the invention
Because known packet error or the strength of carrier signal pointer of utilizing separately judges whether wireless peripheral unit needs to change way frequently, often cause frequently to change to waste power supply frequently or change and be difficult for and problems such as lost data frequently, the invention provides a kind of frequency changing method of wireless peripheral unit, is to judge by the common detection of packet error and strength of carrier whether wireless launcher needs to change the communication channel with signal receiving device.
Particularly, the invention provides a kind of frequency changing method of wireless peripheral unit, be applied on the wireless launcher and in order to the communication channel of automatic conversion and signal receiving device, described method comprises: when wireless launcher transmits data to signal receiving device by first main channel, calculate the number of times that does not successfully transmit package continuously; And when the number of times that does not successfully transmit package continuously reaches predetermined value, carry out the strength of carrier detection of first main channel and judge whether first main channel is occupied.
Frequency changing method according to described wireless peripheral unit also comprises: when first main channel was occupied, the strength of carrier that carries out second main channel detected and whether judge second main channel occupied.
According to the frequency changing method of described wireless peripheral unit, described predetermined value is three times.
According to the frequency changing method of described wireless peripheral unit, when described first main channel was unoccupied, wireless launcher transmitted data by first main channel for the second time and gives signal receiving device, and calculated the number of times that does not successfully transmit package continuously.
According to the frequency changing method of described wireless peripheral unit, when first main channel was still unoccupied, wireless launcher transmitted data by first main channel for the third time and gives signal receiving device, and calculated the number of times that does not successfully transmit package continuously.
Frequency changing method according to described wireless peripheral unit, when first main channel is still unoccupied, wireless launcher transmits converted channel with polling mode by at least one secondary channel and is notified to signal receiving device, and after wireless launcher successfully transmitted converted channel and is notified to signal receiving device, wireless launcher transmitted data by second main channel and gives signal receiving device.
Frequency changing method according to described wireless peripheral unit also comprises: when second main channel was unoccupied, wireless launcher transmitted converted channel with polling mode by at least one secondary channel and is notified to signal receiving device; And after wireless launcher successfully transmitted converted channel and is notified to signal receiving device, wireless launcher transmitted data by second main channel and gives signal receiving device.
According to the frequency changing method of described wireless peripheral unit, described wireless launcher transmits converted channel by four secondary channels in regular turn with polling mode and is notified to signal receiving device.
According to the frequency changing method of described wireless peripheral unit, when wireless launcher did not successfully transmit converted channel and is notified to signal receiving device in 10 seconds, wireless launcher entered sleep state.
According to the frequency changing method of described wireless peripheral unit, wireless launcher is a wireless mouse, and signal receiving device is a receiver.
The present invention also provides a kind of method that receives data, is applied on the signal receiving device in order to receive the data that wireless launcher transmitted, and described method comprises: waits for 16 milliseconds of data that transmitted by first main channel with the reception wireless launcher; When in 16 milliseconds of stand-by period, not receiving data yet, continue to wait for 8 milliseconds to receive data; When in 8 milliseconds of stand-by period, not receiving data yet, be converted to the first secondary channel and wait for 2 milliseconds to receive the converted channel notice that wireless launcher was transmitted; And when in 2 milliseconds of stand-by period, receiving this converted channel notice, wait for receiving the data that wireless launcher is transmitted by second main channel.
Method according to described reception data also comprises: when not receiving this converted channel notice in 2 milliseconds of stand-by period, be converted to the second secondary channel and wait for 2 milliseconds to receive this converted channel notice that wireless launcher was transmitted.
Method according to described reception data also comprises: when not receiving this converted channel notice in 2 milliseconds of stand-by period, be converted to the 3rd secondary channel and wait for 2 milliseconds to receive this converted channel notice that wireless launcher was transmitted.
Method according to described reception data also comprises: when not receiving this converted channel notice in 2 milliseconds of stand-by period, be converted to the fourth officer channel and wait for 2 milliseconds to receive this converted channel notice that wireless launcher was transmitted.
Method according to described reception data also comprises: when not receiving this converted channel notice in 2 milliseconds of stand-by period, be converted to first main channel and wait for 8 milliseconds to receive the data that wireless launcher was transmitted.
As can be seen from the above technical solutions, the invention provides a kind of be applied on the wireless launcher and can change the method for linking up channel with signal receiving device, at first calculate the number of times that does not successfully transmit package continuously and whether surpass predetermined value, confirm by the detection of strength of carrier whether wireless launcher really reaches the situation that need change frequency more afterwards by the detection of packet error (Packet ErrorRate).The method of the converted channel that present embodiment provided is to reduce the number of times of wireless launcher conversion and signal receiving device communication channel by the common detection of packet error and strength of carrier, and then saves the power supply of wireless launcher.The present invention provides a kind of simultaneously and is applied on the signal receiving device in order to receive the method for data that wireless device transmits.
Description of drawings
Fig. 1 shows the method flow diagram of the converted channel that first embodiment is provided.
Fig. 2 shows the method flow diagram of the reception data that second embodiment is provided.
Embodiment
First specific embodiment of the present invention provides a kind of frequency changing method of wireless peripheral unit, and the method is applied on the wireless launcher and in order to the communication channel of automatic conversion and signal receiving device.In the present embodiment, wireless launcher is a wireless mouse; Signal receiving device is then for being connected in the receiver (receiver) on the computer, in order to receive data or the signal that wireless mouse transmitted.And the communication channel between wireless launcher and the signal receiving device mainly is divided into two kinds of main channel and secondary channels, and main channel is used for transmitting general data, and secondary channel then is used for transmitting the converted channel notice.
Please refer to Fig. 1, Fig. 1 is the method flow diagram of the converted channel that present embodiment provided.
At first, wireless launcher transmits data and gives signal receiving device (step 101), and whether calculates the continuous number of times of package that successfully do not transmit above predetermined value (step 102).
When the number of times that does not successfully transmit package did not continuously surpass predetermined value, wireless launcher continued to transmit data and gives signal receiving device.
And when the number of times that does not successfully transmit package continuously surpasses predetermined value, for example wireless launcher is continuous when all successfully not transmitting package for three times and giving signal receiving device, and then wireless launcher carries out strength of carrier and detects and judge main channel this moment (first main channel) whether occupied (step 103).
Then, when wireless launcher carries out that strength of carrier detects (step 103) and when judging that main channel this moment (first main channel) is unoccupied, wireless launcher then continues to transmit data and gives signal receiving device (step 101), and whether continues to calculate the continuous number of times of package that successfully do not transmit above predetermined value (step 102).
And carry out that strength of carrier detects (step 103) and when judging that main channel this moment (first main channel) is occupied when wireless launcher, the original main channel (first main channel) (step 104) of linking up of wireless launcher change with signal receiving device, and carry out strength of carrier to detect and judge main channel (second main channel) whether occupied (step 105) after changing.
When carrying out strength of carrier, wireless launcher detects (step 105) and main channel (second main channel) after judging change when occupied, wireless launcher was changed original main channel (second main channel) (step 104) of linking up with signal receiving device once more, and carried out strength of carrier to detect and judge main channel (the 3rd main channel) whether occupied (step 105) after changing.Be applied on the wireless mouse and conversion is linked up the method for channel with receiver and present embodiment provides, providing 13 main channels allows wireless mouse select, thereby detect and judge original a certain main channel when occupied when wireless mouse carries out strength of carrier, changed to next main channel and carry out strength of carrier and detect.
And detect (step 105) and main channel (second main channel) after judging change when unoccupied when wireless launcher carries out strength of carrier, wireless launcher is changed frequency to being notified to signal receiving device (step 106) in the mode of poll by at least one secondary transmission, judges then whether signal receiving device successfully receives converted channel notice (step 107).If signal receiving device successfully receives wireless launcher and is transmitted next converted channel notice with a certain secondary channel, just then wireless launcher can continue to transmit data to signal receiving device (step 101) by unappropriated main channel.And when signal receiving device does not successfully receive the converted channel notice that wireless launcher transmits with a certain secondary channel, wireless launcher continues to transmit the converted channel notice with another secondary channel, surpass predetermined value (for example being 10 seconds) and during converted channel notice that signal receiving device does not successfully receive wireless launcher yet and transmitted up to the poll time, wireless launcher just directly enters resting state and the consumption of saving power supply.In addition, present embodiment provided is applied on the wireless mouse and conversion is linked up the method for channel with receiver, provides four secondary channels and allows wireless mouse inquire in turn in regular turn whether receiver receives the converted channel notice.
Present embodiment is to be applied on the wireless launcher and can to change the method for linking up channel with signal receiving device, the method mainly judges jointly by two kinds of testing mechanisms whether wireless launcher needs to change the communication channel with signal receiving device, at first calculate the number of times that does not successfully transmit package continuously and whether surpass predetermined value, confirm by the detection of strength of carrier whether wireless launcher really reaches the situation that need change frequency more afterwards by the detection of packet error (Packet Error Rate).The method of converted channel that present embodiment provides is avoided wireless launcher by the common detection of packet error and strength of carrier and is taken place because often change the situation of wasting the wireless launcher power supply with the communication channel of signal receiving device for no reason.
Second specific embodiment of the present invention provides a kind of method that receives data, and the method is applied on the signal receiving device and in order to receive the data that wireless launcher transmitted.In the present embodiment, wireless launcher is a wireless mouse; Signal receiving device is then for being connected in the receiver on the computer, in order to receive data or the signal that wireless mouse transmitted.Communication channel between wireless launcher and the signal receiving device mainly is divided into two kinds of main channel and secondary channels, and main channel is used for transmitting general data, and secondary channel then is used for transmitting the converted channel notice.
Please refer to Fig. 2, Fig. 2 provides the method flow diagram that receives data for present embodiment.
At first, signal receiving device is waited for 16 milliseconds to receive the data (step 201) that wireless launcher is transmitted by first main channel.
When signal receiving device successfully receives the data that wireless launcher transmitted by first main channel in 16 milliseconds, then carry out follow-up data processing action (step 207).
And when signal receiving device does not successfully receive the data that wireless launcher transmitted by first main channel in 16 milliseconds, then continue to wait for 8 milliseconds to receive the data (step 202) that wireless launcher is transmitted by first main channel.
When signal receiving device successfully receives the data that wireless launcher transmitted by first main channel in 8 milliseconds, then carry out follow-up data processing action (step 207).
And when signal receiving device does not successfully receive the data that wireless launcher transmitted by first main channel in 8 milliseconds, then continue to wait for 2 milliseconds to receive the converted channel notice (step 203) that wireless launcher is transmitted by the first secondary channel.
When signal receiving device successfully receives the converted channel notice that wireless launcher transmitted by the first secondary channel in 2 milliseconds, then carry out converted channel and handle action (step 207), give signal receiving device and make wireless launcher be able to transmit data by second main channel after the conversion.
And when signal receiving device does not successfully receive the converted channel notice that wireless launcher transmitted by the first secondary channel in 2 milliseconds, then continue to wait for 2 milliseconds to receive the converted channel notice (step 204) that wireless launcher is transmitted by the second secondary channel.
When signal receiving device successfully receives the converted channel notice that wireless launcher transmitted by the second secondary channel in 2 milliseconds, then carry out converted channel and handle action (step 207), give signal receiving device and make wireless launcher be able to transmit data by second main channel after the conversion.
And when signal receiving device does not successfully receive the converted channel notice that wireless launcher transmitted by the second secondary channel in 2 milliseconds, then continue to wait for 2 milliseconds to receive the converted channel notice (step 205) that wireless launcher is transmitted by the 3rd secondary channel.
When signal receiving device successfully receives the converted channel notice that wireless launcher transmitted by the 3rd secondary channel in 2 milliseconds, then carry out converted channel and handle action (step 207), give signal receiving device and make wireless launcher be able to transmit data by second main channel after the conversion.
And when signal receiving device does not successfully receive the converted channel notice that wireless launcher transmitted by the 3rd secondary channel in 2 milliseconds, then continue to wait for 2 milliseconds to receive the converted channel notice (step 206) that wireless launcher is transmitted by the fourth officer channel.
When signal receiving device successfully receives the converted channel notice that wireless launcher transmitted by the fourth officer channel in 2 milliseconds, then carry out converted channel and handle action (step 207), give signal receiving device and make wireless launcher be able to transmit data by second main channel after the conversion.
And when signal receiving device does not successfully receive the converted channel notice that wireless launcher transmitted by the fourth officer channel in 2 milliseconds, then continue to wait for 8 milliseconds to receive the data (step 202) that wireless launcher is transmitted by first main channel.
What need statement is that foregoing invention content and embodiment are intended to prove the practical application of technical scheme provided by the present invention, should not be construed as the qualification to protection range of the present invention.Those skilled in the art are in spirit of the present invention and principle, when doing various modifications, being equal to and replacing or improve.Protection scope of the present invention is as the criterion with appended claims.
Claims (15)
1. the frequency changing method of a wireless peripheral unit is applied on the wireless launcher and in order to the communication channel of automatic conversion and signal receiving device, it is characterized in that described method comprises:
When wireless launcher transmits data to signal receiving device by first main channel, calculate the number of times that does not successfully transmit package continuously; And
When the number of times that does not successfully transmit package continuously reaches predetermined value, carry out the strength of carrier detection of first main channel and judge whether first main channel is occupied.
2. the frequency changing method of wireless peripheral unit as claimed in claim 1 is characterized in that, also comprises: when first main channel was occupied, the strength of carrier that carries out second main channel detected and whether judge second main channel occupied.
3. the frequency changing method of wireless peripheral unit as claimed in claim 1 is characterized in that, described predetermined value is three times.
4. the frequency changing method of wireless peripheral unit as claimed in claim 1, it is characterized in that, when described first main channel was unoccupied, wireless launcher transmitted data by first main channel for the second time and gives signal receiving device, and calculated the number of times that does not successfully transmit package continuously.
5. the frequency changing method of wireless peripheral unit as claimed in claim 4, it is characterized in that, when first main channel was still unoccupied, wireless launcher transmitted data by first main channel for the third time and gives signal receiving device, and calculated the number of times that does not successfully transmit package continuously.
6. the frequency changing method of wireless peripheral unit as claimed in claim 5, it is characterized in that, when first main channel is still unoccupied, wireless launcher transmits converted channel with polling mode by at least one secondary channel and is notified to signal receiving device, and after wireless launcher successfully transmitted converted channel and is notified to signal receiving device, wireless launcher transmitted data by second main channel and gives signal receiving device.
7. the frequency changing method of wireless peripheral unit as claimed in claim 2 is characterized in that, also comprises:
When second main channel was unoccupied, wireless launcher transmitted converted channel with polling mode by at least one secondary channel and is notified to signal receiving device; And
After wireless launcher successfully transmitted converted channel and is notified to signal receiving device, wireless launcher transmitted data by second main channel and gives signal receiving device.
8. the frequency changing method of wireless peripheral unit as claimed in claim 7 is characterized in that, wireless launcher transmits converted channel by four secondary channels in regular turn with polling mode and is notified to signal receiving device.
9. the frequency changing method of wireless peripheral unit as claimed in claim 7 is characterized in that, when wireless launcher did not successfully transmit converted channel and is notified to signal receiving device in 10 seconds, wireless launcher entered sleep state.
10. the frequency changing method of wireless peripheral unit as claimed in claim 1 is characterized in that, described wireless launcher is a wireless mouse, and signal receiving device is a receiver.
11. a method that receives data is applied on the signal receiving device it is characterized in that in order to receive the data that wireless launcher transmitted described method comprises:
Wait for 16 milliseconds to receive the data that wireless launcher is transmitted by first main channel;
When in 16 milliseconds of stand-by period, not receiving data yet, continue to wait for 8 milliseconds to receive data;
When in 8 milliseconds of stand-by period, not receiving data yet, be converted to the first secondary channel and wait for 2 milliseconds to receive the converted channel notice that wireless launcher was transmitted; And
When in 2 milliseconds of stand-by period, receiving this converted channel notice, wait for receiving the data that wireless launcher is transmitted by second main channel.
12. the method for reception data as claimed in claim 11, it is characterized in that, also comprise: when in 2 milliseconds of stand-by period, not receiving this converted channel notice, be converted to the second secondary channel and wait for 2 milliseconds to receive this converted channel notice that wireless launcher was transmitted.
13. the method for reception data as claimed in claim 12, it is characterized in that, also comprise: when in 2 milliseconds of stand-by period, not receiving this converted channel notice, be converted to the 3rd secondary channel and wait for 2 milliseconds to receive this converted channel notice that wireless launcher was transmitted.
14. the method for reception data as claimed in claim 13, it is characterized in that, also comprise: when in 2 milliseconds of stand-by period, not receiving this converted channel notice, be converted to the fourth officer channel and wait for 2 milliseconds to receive this converted channel notice that wireless launcher was transmitted.
15. the method for reception data as claimed in claim 14 is characterized in that, also comprises: when in 2 milliseconds of stand-by period, not receiving this converted channel notice, be converted to first main channel and wait for 8 milliseconds to receive the data that wireless launcher was transmitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101646717A CN101202594B (en) | 2006-12-15 | 2006-12-15 | Method for exchanging frequency of wireless peripheral unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101646717A CN101202594B (en) | 2006-12-15 | 2006-12-15 | Method for exchanging frequency of wireless peripheral unit |
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| CN101202594A true CN101202594A (en) | 2008-06-18 |
| CN101202594B CN101202594B (en) | 2012-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2006101646717A Expired - Fee Related CN101202594B (en) | 2006-12-15 | 2006-12-15 | Method for exchanging frequency of wireless peripheral unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739284A (en) * | 2012-06-19 | 2012-10-17 | 上海沪工汽车电器有限公司 | Vehicle lock remote control implementation method |
| CN114585030A (en) * | 2020-12-02 | 2022-06-03 | 致伸科技股份有限公司 | Data transmission method for wireless peripheral device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1350261A (en) * | 2000-10-23 | 2002-05-22 | 华容股份有限公司 | Automatic frequency transforming and recognizing remote control system |
| CN1764092A (en) * | 2004-10-20 | 2006-04-26 | 玴荣科技股份有限公司 | Method for preventing transmitting-receiving disturbance of electronic input apparatus signal |
-
2006
- 2006-12-15 CN CN2006101646717A patent/CN101202594B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739284A (en) * | 2012-06-19 | 2012-10-17 | 上海沪工汽车电器有限公司 | Vehicle lock remote control implementation method |
| CN102739284B (en) * | 2012-06-19 | 2015-09-23 | 上海沪工汽车电器有限公司 | A kind of vehicle lock remote control implementation |
| CN114585030A (en) * | 2020-12-02 | 2022-06-03 | 致伸科技股份有限公司 | Data transmission method for wireless peripheral device |
| CN114585030B (en) * | 2020-12-02 | 2024-03-05 | 致伸科技股份有限公司 | Data transmission method of wireless peripheral device |
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| Publication number | Publication date |
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| CN101202594B (en) | 2012-03-21 |
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Granted publication date: 20120321 Termination date: 20171215 |