CN105208614A - Automatic switching device and switching method for wireless channels - Google Patents
Automatic switching device and switching method for wireless channels Download PDFInfo
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- CN105208614A CN105208614A CN201510679689.XA CN201510679689A CN105208614A CN 105208614 A CN105208614 A CN 105208614A CN 201510679689 A CN201510679689 A CN 201510679689A CN 105208614 A CN105208614 A CN 105208614A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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Abstract
The invention provides an automatic switching device and switching method for wireless channels. The automatic switching device comprises a control module, a detection module, a channel switching module, a channel reading module, and a judging module, wherein the control module is used for controlling switching among work channels of wireless equipment; the detection module is used for detecting the amount of interference APs in each wireless channel in the coverage range of wireless signals of the wireless equipment, the bandwidth of each interference AP, and the signal-strength of each interference AP with a pre-arranged frequency under the control of the control module; the channel switching module is used for obtaining an optimal work channel of the wireless equipment according to the information acquired by the detection module; the channel reading module is used for acquiring the current work channel of the wireless equipment, acquiring the optimal work channel from the channel switching module, and saving the optimal work channel; the judging module is used for acquiring the current work channel and the optimal work channel from the channel reading module, so as to judge whether work channel switching is needed or not. The automatic switching device and switching method have the advantages that all wireless channels are engaged, and the optimal work channel is selected from the wireless channels, so that the resource is utilized sufficiently.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of wireless channel automatic switching control equipment and automatic switching method.
Background technology
" frequency range (Channel) " that wireless channel namely what is often called is wireless, it is the data-signal Transfer pipe using wireless signal as transmission medium.
At present, conventional IEEE-802.11b/g/n is operated in 2.4 ~ 2.4835GHz frequency range, width is 83.5MHz, and the width of this 83.5MHz needs to divide equally and gives 14 different channels in real work, and the gap between every two channels is 20MHz, but the summation of these 14 channels has exceeded 100MHz, therefore can find out, in 14 channels in this frequency range, at least have two (normally four) channels and be in coincidence status.Channel overlap is not a good thing, and they directly can affect the throughput of wireless network.In order to avoid the situation of this channel overlap as far as possible, in general, when there being plural AP in wireless device wireless signal coverage, then need for each AP sets different frequency ranges, in order to avoid shared channel clashes.
In actual applications, existing wireless router channel Auto function only detects the number of occupied channel AP in around interference environment, and most wireless router acquiescence is fixed in 1,6,11 3 channel and selects, well can not select an optimum channel and communicate.
Summary of the invention
For the problems referred to above, the present invention aims to provide a kind of wireless channel automatic switching control equipment and automatic switching method, it detects all interfering AP (WirelessAccessPoint in wireless network coverage, wireless access points) number, frequency range and signal strength signal intensity, finally select an optimum working channel again, substantially increase the performance of wireless device.
Technical scheme provided by the invention is as follows:
A kind of wireless channel automatic switching control equipment, described wireless channel automatic switching control equipment is arranged in a wireless device, described wireless channel automatic switching control equipment comprises: control module, detection module, channel switching module, channel read module and judge module, wherein:
Described control module, for controlling the switching of working channel in described wireless device;
Described detection module, be connected with described control module, described detection module detects the signal strength signal intensity of the quantity of interfering AP, the frequency range of each interfering AP and each interfering AP in each wireless channel in the scope of described wireless device wireless signal covering under the control of described control module;
Described channel switching module, is connected with described detection module, and described channel switching module calculates the interference value of each wireless channel, obtains optimum working channel;
Described channel read module, is connected with described channel switching module, and described channel read module obtains the current operating channel of described wireless device, and from described channel switching module, obtains described optimum working channel and store;
Described judge module, is connected with described channel read module and control module respectively, and described judge module obtains described current operating channel and described optimum working channel from described channel read module, and then judges whether to need switch operating channel.
In the technical program, realize the object of invention by cooperatively interacting of control module, detection module, channel switching module, channel read module and judge module.In addition, control module, except controlling the switching of working channel in wireless device, is used for controlling the operation that wireless device starts, restarts simultaneously, can also be used to the configuration such as work bandwidth, working channel changing wireless device.
Preferably, described detection module detects the signal strength signal intensity of the quantity of interfering AP, the frequency range of each interfering AP and each interfering AP in each wireless channel in scope that described wireless device wireless signal covers with predeterminated frequency.
Preferably, in channel switching module, the signal strength signal intensity of the interfering AP got is divided three classes:
High-grade: signal strength signal intensity >=the first predetermined threshold value;
Middle-grade: the second predetermined threshold value≤signal strength signal intensity < first predetermined threshold value;
Low-grade: signal strength signal intensity < second predetermined threshold value.
In the technical program, interference signal intensity in channel each in the interfering AP detected is divided, strengthening is carried out for the interference signal in top grade give prominence to, in follow-up calculating judges, interference signal larger for signal strength signal intensity is given prominence to, ensured the accuracy of wireless channel automatic switching control equipment.
Preferably, described channel switching module determines the interference value of each wireless channel according to the area value of each wireless channel in channel/signal strength signal intensity coordinate in each interfering AP of classified calculating of described interfering AP signal strength signal intensity, and then obtains optimum working channel.。
In the technical program, we determine the interference value of this wireless channel by the area that each wireless channel in calculating channel/signal strength signal intensity coordinate system is corresponding, simple and convenient.
A kind of wireless channel automatic switching method, described wireless channel automatic switching method comprises the following steps:
S1 starts wireless device, arranges work bandwidth;
The signal strength signal intensity of the quantity of interfering AP, the frequency range of each interfering AP and each interfering AP in each wireless channel in the scope that the wireless signal that S2 detects described wireless device covers;
S3 calculates the interference value of each wireless channel, obtains optimum working channel;
S4 reads current operating channel, and is compared with described optimum working channel by described current operating channel, determines whether to change working channel, if change, jumps to step S5; If do not change, jump to step S6;
S5 switch operating channel, and to upgrade working channel be described optimum working channel;
S6 terminates
In the technical program, the channel AUTO function in wireless device is channel automatic switching function.If wireless device starts first time, namely do not preserving current operating channel before, then after obtaining optimum working channel, directly this optimum working channel is being set to current operating channel, does not need through step S4.
Preferably, in step S2, in the scope that the wireless signal detecting described wireless device covers in each wireless channel the quantity of interfering AP, the frequency range of each interfering AP and each interfering AP signal strength signal intensity in, specifically comprise:
The signal strength signal intensity of the quantity of interfering AP, the frequency range of each interfering AP and each interfering AP in each wireless channel in the scope that the wireless signal detecting described wireless device with predeterminated frequency covers.
Preferably, in step S3, calculate the interference value of each wireless channel, obtain, in optimum working channel, specifically comprising the following steps:
S31 calculate respectively each AP disturb in the area of each wireless channel in channel/signal strength signal intensity coordinate as the interference value of respective radio channels;
Interference value in same wireless channel during all AP disturb by S32 is added, and obtains the interference value of each wireless channel;
The wireless channel that S33 selects interference value minimum is as described optimum working channel.
Preferably, in step S33, the wireless channel selecting interference value minimum, as in described optimum working channel, specifically comprises:
If there is the wireless channel that multiple interference value is identical, then select minimum wireless channel as optimum working channel;
If the work bandwidth that described wireless device is arranged is 20/40MHz, be then that 20MHz selects optimum working channel according to work bandwidth.
Preferably, in step S4, read current operating channel, and described current operating channel compared with described optimum working channel, determine whether to change working channel, specifically comprise the following steps:
S41 reads current operating channel, and obtains described optimum working channel;
S42 judges that whether described current operating channel is consistent with described optimum working channel, if unanimously, jumps to step S6; If inconsistent, jump to step S5.
Wireless channel automatic switching control equipment provided by the invention and automatic switching method, can bring following beneficial effect:
The quantity of interfering AP in each wireless channel in the scope that wireless channel automatic switching control equipment detected wireless devices wireless signal in the present invention covers, the frequency range of each interfering AP and the signal strength signal intensity of each interfering AP obtain optimum working channel, and then realize the switching of working channel, can find out, in the present invention, this wireless channel automatic switching control equipment makes wireless device no longer be fixed on 1, 6, self adaptation in 11 3 channels, but travel through each wireless channel and therefrom choose optimum working channel, like this, wireless device can be made to make full use of resource, under selecting present case, optimum wireless channel communicates, change at present only 1, 6, the present situation switched is carried out in 11 3 channels,
In addition, in the present invention, obtain the interference value of each radio channel of interfering AP by wireless signal patterned area in channel/signal strength signal intensity reference axis, and then compare the size of interference by reference area size directly perceived, simple and convenient;
Have again, in the present invention, signal strength signal intensity is divided into third gear, but ensure that the interference number wireless channel disturbance priority taken that still signal strength signal intensity is very strong is less far away higher than the wireless channel taken that the many signal strength signal intensities of interference number are very weak, ensure that wireless channel automatic switching control equipment can accurately select optimum working channel.
Accompanying drawing explanation
Below by clearly understandable mode, accompanying drawings preferred implementation, is further described above-mentioned characteristic, technical characteristic, advantage and implementation thereof.
Fig. 1 is the structural representation of wireless channel automatic switching control equipment in the present invention;
Fig. 2 is point schematic diagram such as area in channel in the present invention/signal strength signal intensity coordinate system;
Fig. 3 is interference signal CH1_20MHz and interference signal CH6+10_40MHz schematic diagram in the present invention;
Fig. 4 is wireless channel automatic switching method schematic flow sheet in the present invention.
Drawing reference numeral illustrates:
1-control module, 2-detection module, 3-channel switching module, 4-channel read module, 5-judge module,
A-CH1_20MHz (channel 1, frequency range 20MHz), B-CH6+10_40MHz (channel 6 is expanded downwards, frequency range 40MHz).
Embodiment
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, contrast accompanying drawing is illustrated the specific embodiment of the present invention below.Apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, and obtain other execution mode.
Be illustrated in figure 1 the structural representation of wireless channel automatic switching control equipment provided by the invention, as can be seen from the figure, this wireless channel automatic switching control equipment is arranged in a wireless device, and this wireless channel automatic switching control equipment comprises: control module 1, detection module 2, channel switching module 3, channel read module 4 and judge module 5, wherein, detection module 2 is connected with control module 1, channel switching module 3 is connected with detection module 2, channel read module 4 is connected with channel switching module 3, judge module 5 is connected with channel read module 4 and control module 1 respectively.
Specifically, in the course of the work, first start wireless device, and arranged by the work bandwidth of control module 1 to this wireless device and open its channel AUTO function.Subsequently, detection module 2 is with the signal strength signal intensity of the quantity of interfering AP, the frequency range of each interfering AP and each interfering AP in each wireless channel in the scope of predeterminated frequency (e.g., every 15min detects once) detected wireless devices wireless signal covering.As in a particular embodiment, detection module 2 detects that the extent channels 1 (CH1) covered at the wireless signal of this wireless device comprises two interfering AP, then detection module 2 detects the frequency range of these two interfering AP and the signal strength signal intensity of these two interfering AP further; And for example, detection module 2 detects that the extent channels 5 (CH5) covered at the wireless signal of this wireless device comprises five interfering AP, then detection module 2 detects the frequency range of these five interfering AP and the signal strength signal intensity of these five interfering AP further, by that analogy, until all wireless channels (as, the wireless channel that IEEE-802.11b/g/n 14 of comprising are different, now travels through 1 ~ 13 wireless channel wherein) all detect complete.Be noted that we are not specifically limited predeterminated frequency, as detection module 2 can also every 20min, every 10min detect once, as long as it can realize object of the present invention, be all included in content of the present invention.Have again, control module 1 in the present invention, except control wireless device unlatching, close except, the setting of work bandwidth, the setting of working channel can set according to control module 1 equally, as for the setting means of working channel, user can be selected manually to arrange, and the channel switching command that also can send according to channel switching module 3 switches.
And then, channel switching module 3 obtains the signal strength data of the quantity of interfering AP in each wireless channel, the frequency range of each interfering AP and each interfering AP from detection module 2, then calculates the optimum working channel of wireless device.Furthermore, in computational process, for the different wireless channel of 14 in IEEE-802.11b/g/n: first by channel/signal strength signal intensity coordinate system, (abscissa is for channel, ordinate is signal strength signal intensity (dBm)) be divided into shaded area S (-1), S (0) ... as shown in Figure 2, S (14), and be the interference value in this region by the cartographic represenation of area of respective column.We know, in the present embodiment, the frequency interval between each unit of abscissa is 5MHz (e.g., between abscissa 1-2, frequency interval is 5MHz), and because abscissa is decile, thus in order to simplify computational process, we are reduced to 1; Have again, as can be seen from the figure, signal strength signal intensity be negative value (as,-43dBm), thus in the process calculating area corresponding to each channel, we by " signal strength signal intensity+100 " to convert negative value on the occasion of and then conveniently to try to achieve the area in this region, as, need to calculate the dash area S (3) between abscissa " 3-4 ", then only need (signal strength signal intensity+100) × 1, and do not need (signal strength signal intensity+100) × 5, thus decrease the amount of calculation of device.
Further, in computational process, the signal strength signal intensity of the interfering AP got is divided three classes by we by calculating, wherein, high-grade: signal strength signal intensity >=the first predetermined threshold value; Middle-grade: the second predetermined threshold value≤signal strength signal intensity < first predetermined threshold value; Low-grade: signal strength signal intensity < second predetermined threshold value.Specifically, the setting of the first predetermined threshold value and the second predetermined threshold value, can according to circumstances set, and e.g., the first predetermined threshold value is set as-45dBm, the second predetermined threshold value is set as-75dBm.Again, in order to strengthen the larger part of outstanding signal strength signal intensity, when the signal strength signal intensity of the interfering AP detected is for high-grade, then area value × the first coefficient will calculated; When the signal strength signal intensity of the interfering AP detected is middle-grade, then area value × the second coefficient will calculated; When detecting that the signal strength signal intensity of interfering AP is for low-grade, area value × the 3rd coefficient then will calculated, wherein, first coefficient is much larger than the second coefficient, second coefficient is much larger than the 3rd coefficient, like this, but if ensure that interference number less but the wireless channel priority that takies of the very strong interference signal of signal strength signal intensity far away higher than the wireless channel that the interference many signal strength signal intensities of number interference signal takies very much.It should be noted that, we are all not construed as limiting the occurrence of the first above-mentioned predetermined threshold value, the second predetermined threshold value, the first coefficient, the second coefficient and the 3rd coefficient, can limit according to actual conditions, as, the first predetermined threshold value can also be set as that-30dBm, the second predetermined threshold value are-60dBm; And for example, the first coefficient can be set as that the 50, second predetermined threshold value is set as that the 5, the 3rd predetermined threshold value is set as 1 etc., can as long as object of the present invention can be realized.
Be set as-45dBm with the first predetermined threshold value below, the second predetermined threshold value be set as-75dBm, the first coefficient to be the 100, second coefficient be 10 and the 3rd coefficient be 1 be example:
If detect, the wireless frequency range on wireless channel CHx is 20MHz, and signal strength signal intensity >=-45dBm, then as shown in Figure 2 in S (x-2), S (x-1), S (x) and S (x+1) have value and equal, the area value in each region is specially 100 × (100+ signal strength signal intensity).Again, if the wireless frequency range on wireless channel CHx is 40MHz and upwards expands, and-75dBm≤signal strength signal intensity <-45dBm, then as shown in Figure 2 in S (x-4-2), S (x-4-1), S (x-4), S (x-4+1), S (x-2), S (x-1), S (x) and S (x+1) have value and equal, the area value in each region is specially 10 × (100+ signal strength signal intensity).Have again, if the wireless frequency range on wireless channel CHx is 40MHz and expands downwards, and-75dBm≤signal strength signal intensity <-45dBm, S (x-2) then in like manner in as shown in Figure 2, S (x-1), S (x), S (x+1), S (x+4-2), S (x+4-1), S (x+4) and S (x+4+1) have value and equal, and the area value in each region is specially 10 × (100+ signal strength signal intensity).In a specific embodiment, as shown in Figure 3, comprise two interfering AP, curve A interfering AP 1, be specially a channel 1, frequency range 20MHz (CH1_20MHz) and signal strength signal intensity is the interference signal of-43dBm; Curve B is interfering AP 2, is specially that a channel 6 is expanded downwards, frequency range 40MHz (CH6+10_40MHz) and signal strength signal intensity is the interference signal of-30dBm.As can be seen from the figure, S (-1) is covered in curve A, S (0), S (1), S (2) four regions, curve B covers S (4), S (5), S (6), S (7), S (8), S (9), S (10) and S (11), if only have this two interfering AP in the scope that now wireless device wireless network covers, not overlapping between the region of two interference signal coverings, thus just only need to calculate corresponding region area in the process calculating interference value, i.e. interference value=S (-1)+S (0)+S (the 1)+S (2) of CH1_20MHz, interference value=S (4)+S (5)+S (6)+S (7)+S (8)+S (9)+S (the 10)+S (11) of CH6+10_40MHz, wherein, S (0)=(100-43) × 100, S (4)=(100-30) × 100, by that analogy.But, in a practical situation, often there is multiple interfering AP, and have at least between two interfering AP and there will be overlapped situation, as, the multiple interfering AP detected, comprise interfering AP 1: channel 1, frequency range 20MHz (CH1_20MHz) and interfering AP 3: channel 2, frequency range 20MHz (CH2_20MHz), now, S (-1) is covered in the interference signal of CH1_20MHz, S (0), S (1), S (2) four regions, and in the interference signal of CH2_20MHz, cover S (0), S (1), S (2), S (3) four regions.Can find out, when there is these two interfering AP (interfering AP 1 and interfering AP 3) simultaneously, there is overlap in S (0), S (1) and S (2) three regions, in this case, in area value SS (0)=CH1_20MHz final in region S (0) S (0) area+CH2_20MHz in the area of S (0), in like manner SS (1), SS (2) also need just can obtain final area value by being added up by the area of respective regions in two interfering AP.Have again, if comprise the interfering AP of multiple channel 1, frequency range 20MHz (CH1_20MHz) within the scope of this wireless device wireless signal, be respectively CH1.1_20MHz, CH1.2_20MHz ..., CH1.N_20MHz, then in final in this time domain S (0) area value SS (0)=CH1.1_20MHz S (0) area+CH1.2_20MHz in S (0) area+... the area of S (0) in+CH1.N_20MHz; By that analogy, the final area value SS in each region is obtained.Channel switching module is in the process calculated, according to method described above, traversal 1 ~ 13 wireless channel, draw S (-1) ~ S (14) value of each interference signal on each wireless channel and the area in same area is added, obtaining final area value SS (-1) ~ SS (14).Adopt said method, after obtaining final area value SS (-1) ~ SS (14), just can draw different channels, different frequency range (CH (X) _ (Y) MHz; X represents 1 ~ 13 channel, and Y represents 20/40MHz frequency range) under interference value.As, interference value=SS (-1)+SS (0)+SS (the 1)+SS (2) of CH1_20MHz, interference value=SS (4)+SS (5)+SS (6)+SS (7)+SS (8)+SS (9)+SS (the 10)+SS (11) of CH6+10_40MHz, by that analogy.
The selection rule of optimum working channel: if that work bandwidth setting is 20MHz in wireless device, then channel switching module 3 calculates these 13 interference values of CH1_20MHz ~ CH13_20MHz respectively and compares, and the wireless channel selecting interference value minimum is as optimum working channel; If there is the wireless channel that interference value is equal, then select less wireless channel as optimum working channel.In like manner, if that the work bandwidth setting in wireless device is 40MHz, then channel switching module 3 calculates these 18 interference values of CH1+5_40MHz ~ CH13+9_40MHz respectively and compares, and the wireless channel selecting interference value minimum is as optimum working channel; If there is the wireless channel that interference value is equal, then select less wireless channel as optimum working channel.If that in wireless device, work bandwidth is arranged is 20/40MHz, then automatically drops to 20MHz, according to the comparative approach of 20MHz, obtain optimum working channel.
After obtaining optimum working channel, then this optimum working channel is sent to channel read module 4, meanwhile, channel read module 4 obtains the current operating channel (i.e. predeterminated frequency, as that optimum working channel that the channel switching module 3 before 15min sends) of wireless device.Be noted that if wireless device starts first time, namely in channel read module 4 before, do not preserve current operating channel, then after obtaining optimum working channel, directly this optimum working channel is set to current operating channel.
Finally, judge module 5 obtains current operating channel and optimum working channel from channel read module 4, and then judges whether to need switch operating channel; When judge module 5 is judged to need switch operating channel, then send switching command realizes working channel switching to control module 1, send simultaneously and upgrade instruction realizes working channel renewal to channel read module 4.Current operating channel and optimum working channel, in the process judged, compare by judge module 5, see that whether two channels are consistent, if current operating channel is consistent with optimum working channel, then do not need to switch; If current operating channel and optimum working channel are inconsistent, then send switching command realizes working channel switching to control module 1, optimum working channel is switched to current operating channel; Send simultaneously and upgrade instruction realizes working channel renewal to channel read module 4, the current operating channel stored before is updated to this optimum working channel.
Be illustrated in figure 4 the schematic flow sheet of wireless channel automatic switching method provided by the invention, specifically, this wireless channel automatic switching method comprises the following steps:
S1 starts wireless device, arranges work bandwidth.Specifically, the startup of this wireless device is controlled by control module 1, work bandwidth be set by control module 1 equally, and by control module 1 open channel AUTO function.
The signal strength signal intensity of the quantity of interfering AP, the frequency range of each interfering AP and each interfering AP in each wireless channel in the scope that the wireless signal of S2 detected wireless devices covers.In a particular embodiment, detection module 2 is with predeterminated frequency, the signal strength signal intensity of the quantity of interfering AP, the frequency range of each interfering AP and each interfering AP in each wireless channel in the scope that wireless signal as every 15min detected wireless devices covers, certainly, this predeterminated frequency can also be set as 20min, 10min, 25min etc., here it is not limited, set according to actual conditions.
S3 calculates the interference value of each wireless channel, obtains optimum working channel.Specifically, in this step, specifically comprise the following steps:
S31 calculate respectively each AP disturb in the area of each wireless channel in channel/signal strength signal intensity coordinate as the interference value of respective radio channels;
Interference value in same wireless channel during all AP disturb by S32 is added, and obtains the interference value of each wireless channel;
The wireless channel that S33 selects interference value minimum is as optimum working channel.If there is the wireless channel that multiple interference value is identical, then select minimum wireless channel as optimum working channel; If the work bandwidth that wireless device is arranged is 20/40MHz, be then that 20MHz selects optimum working channel according to work bandwidth.
Detailed computational methods make description in channel switching module 3, do not repeat at this.
S4 reads current operating channel, and is compared with optimum working channel by current operating channel, determines whether to change working channel, if change, jumps to step S5; If do not change, jump to step S6.Specifically, in this step, specifically comprise the following steps:
S41 reads current operating channel, and obtains described optimum working channel;
S42 judges that whether described current operating channel is consistent with described optimum working channel, if unanimously, jumps to step S6; If inconsistent, jump to step S5.
S5 switch operating channel, and to upgrade working channel be optimum working channel, jumps to step S2.
It should be noted that above-described embodiment all can independent assortment as required.The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a wireless channel automatic switching control equipment, it is characterized in that, described wireless channel automatic switching control equipment is arranged in a wireless device, and described wireless channel automatic switching control equipment comprises: control module, detection module, channel switching module, channel read module and judge module, wherein:
Described control module, for controlling the switching of working channel in described wireless device;
Described detection module, be connected with described control module, described detection module detects the signal strength signal intensity of the quantity of interfering AP, the frequency range of each interfering AP and each interfering AP in each wireless channel in the scope of described wireless device wireless signal covering under the control of described control module;
Described channel switching module, is connected with described detection module, and described channel switching module calculates the interference value of each wireless channel, obtains optimum working channel;
Described channel read module, is connected with described channel switching module, and described channel read module obtains the current operating channel of described wireless device, and from described channel switching module, obtains described optimum working channel and store;
Described judge module, is connected with described channel read module and control module respectively, and described judge module obtains described current operating channel and described optimum working channel from described channel read module, and then judges whether to need switch operating channel.
2. wireless channel automatic switchover system as claimed in claim 1, is characterized in that: described detection module detects the signal strength signal intensity of the quantity of interfering AP, the frequency range of each interfering AP and each interfering AP in each wireless channel in the scope of described wireless device wireless signal covering with predeterminated frequency.
3. wireless channel automatic switchover system as claimed in claim 1 or 2, is characterized in that, the interfering AP signal strength signal intensity got be divided three classes in channel switching module:
High-grade: signal strength signal intensity >=the first predetermined threshold value;
Middle-grade: the second predetermined threshold value≤signal strength signal intensity < first predetermined threshold value;
Low-grade: signal strength signal intensity < second predetermined threshold value.
4. wireless channel automatic switchover system as claimed in claim 3, it is characterized in that: described channel switching module determines the interference value of each wireless channel according to the area value of each wireless channel in channel/signal strength signal intensity coordinate in each interfering AP of classified calculating of described interfering AP signal strength signal intensity, and then obtains optimum working channel.
5. a wireless channel automatic switching method, is characterized in that, described wireless channel automatic switching method comprises the following steps:
S1 starts wireless device, arranges work bandwidth;
The signal strength signal intensity of the quantity of interfering AP, the frequency range of each interfering AP and each interfering AP in each wireless channel in the scope that the wireless signal that S2 detects described wireless device covers;
S3 calculates the interference value of each wireless channel, obtains optimum working channel;
S4 reads current operating channel, and is compared with described optimum working channel by described current operating channel, determines whether to change working channel, if change, jumps to step S5; If do not change, jump to step S6;
S5 switch operating channel, and to upgrade working channel be described optimum working channel;
S6 terminates.
6. wireless channel automatic switching method as claimed in claim 5, it is characterized in that: in step S2, in the scope that the wireless signal detecting described wireless device covers in each wireless channel the quantity of interfering AP, the frequency range of each interfering AP and each interfering AP signal strength signal intensity in, specifically comprise:
The signal strength signal intensity of the quantity of interfering AP, the frequency range of each interfering AP and each interfering AP in each wireless channel in the scope that the wireless signal detecting described wireless device with predeterminated frequency covers.
7. the wireless channel automatic switching method as described in claim 5 or 6, is characterized in that, in step S3, calculates the interference value of each wireless channel, obtains, in optimum working channel, specifically comprising the following steps:
S31 calculate respectively each AP disturb in the area of each wireless channel in channel/signal strength signal intensity coordinate as the interference value of respective radio channels;
Interference value in same wireless channel during all AP disturb by S32 is added, and obtains the interference value of each wireless channel;
The wireless channel that S33 selects interference value minimum is as described optimum working channel.
8. wireless channel automatic switching method as claimed in claim 7, is characterized in that, in step S33, the wireless channel selecting interference value minimum, as in described optimum working channel, specifically comprises:
If there is the wireless channel that multiple interference value is identical, then select minimum wireless channel as optimum working channel.
9. the wireless channel automatic switching method as described in claim 5 or 6 or 8, is characterized in that, in step S4, read current operating channel, and described current operating channel is compared with described optimum working channel, determine whether to change working channel, specifically comprise the following steps:
S41 reads current operating channel, and obtains described optimum working channel;
S42 judges that whether described current operating channel is consistent with described optimum working channel, if unanimously, jumps to step S6; If inconsistent, jump to step S5.
Priority Applications (1)
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| CN108848536A (en) * | 2018-06-27 | 2018-11-20 | 新华三技术有限公司 | Method for controlling bandwidth, device and communication equipment |
| CN109362129A (en) * | 2018-12-12 | 2019-02-19 | 深圳创维数字技术有限公司 | Channel determination methods, device, equipment and storage medium |
| CN109951885A (en) * | 2017-12-21 | 2019-06-28 | 深圳Tcl新技术有限公司 | Method, mobile terminal and the storage medium that wireless channel bandwidth mode automatically switches |
| CN111194063A (en) * | 2018-11-15 | 2020-05-22 | 浙江宇视科技有限公司 | Wi-Fi channel switching method and AP equipment |
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| CN111385809A (en) * | 2018-12-28 | 2020-07-07 | 华勤通讯技术有限公司 | Method and system for self-adaptively setting working channel of Wi-Fi router |
| CN112788686A (en) * | 2020-12-30 | 2021-05-11 | 浙江华消科技有限公司 | Channel selection method and device for LoRa equipment and electronic device |
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| CN105704743A (en) * | 2016-03-09 | 2016-06-22 | 上海斐讯数据通信技术有限公司 | Wireless network access system and method |
| CN105704743B (en) * | 2016-03-09 | 2020-10-20 | 上海斐讯数据通信技术有限公司 | Wireless network access system and method |
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| CN109951885A (en) * | 2017-12-21 | 2019-06-28 | 深圳Tcl新技术有限公司 | Method, mobile terminal and the storage medium that wireless channel bandwidth mode automatically switches |
| CN109951885B (en) * | 2017-12-21 | 2021-06-15 | 深圳Tcl新技术有限公司 | Method for automatically switching wireless channel bandwidth mode, mobile terminal and storage medium |
| CN108848536A (en) * | 2018-06-27 | 2018-11-20 | 新华三技术有限公司 | Method for controlling bandwidth, device and communication equipment |
| CN108848536B (en) * | 2018-06-27 | 2023-06-06 | 新华三技术有限公司 | Bandwidth control method and device and communication equipment |
| CN111194063A (en) * | 2018-11-15 | 2020-05-22 | 浙江宇视科技有限公司 | Wi-Fi channel switching method and AP equipment |
| CN109362129B (en) * | 2018-12-12 | 2023-09-05 | 深圳创维数字技术有限公司 | Channel determination method, device, equipment and storage medium |
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| WO2020124731A1 (en) * | 2018-12-21 | 2020-06-25 | 展讯通信（上海）有限公司 | Wireless roaming method and apparatus, storage medium, and access point device |
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| CN111385809A (en) * | 2018-12-28 | 2020-07-07 | 华勤通讯技术有限公司 | Method and system for self-adaptively setting working channel of Wi-Fi router |
| CN112788686A (en) * | 2020-12-30 | 2021-05-11 | 浙江华消科技有限公司 | Channel selection method and device for LoRa equipment and electronic device |
| CN114614924A (en) * | 2022-03-14 | 2022-06-10 | 珠海莲鸿科技有限公司 | Channel switching method and device of communication module and electronic equipment |
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