CN104968000A - Method of reducing mutual interference between ZigBee and WiFi in same equipment - Google Patents
Method of reducing mutual interference between ZigBee and WiFi in same equipment Download PDFInfo
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- CN104968000A CN104968000A CN201510347723.3A CN201510347723A CN104968000A CN 104968000 A CN104968000 A CN 104968000A CN 201510347723 A CN201510347723 A CN 201510347723A CN 104968000 A CN104968000 A CN 104968000A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
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Abstract
The invention provides a method of reducing mutual interference between ZigBee and WiFi in same equipment. ZigBee module and WiFi module parameter coordination service is configured in the same equipment. When the equipment starts one business in ZigBee and WiFi, whether the other business is started is detected; if the other business is started, the system chooses a physical channel of a certain business so as to avoid a physical channel of the other business; and if the other business is not started, the system automatically selects the physical channel of the service. Through coordination on physical channels of the ZigBee module and the WiFi module, mutual interference between the ZigBee module and the WiFi module can be ensured to be totally avoided, and as modification of an agreement is not involved, realization is extremely simple, the setting speed is fast, the mutual interference problem between the ZigBee module and the WiFi module can be solved, and communication reliability is improved.
Description
Technical field
The present invention relates to communication technical field, particularly relate to and a kind ofly reduce the method that in same equipment, ZigBee and WiFi disturbs mutually.
Background technology
Along with the development of science and technology, compare and be confined to the conventional communication device of wired connection, more convenient, fast, flexibly wireless network obtain and develop rapidly.The wireless network communication technique such as WiFi and ZigBee obtain applying more and more widely in daily life.
WiFi is the radio network technique based on IEEE802.11 standard, is one of procotol the most popular in current daily use occasion, has deployment in office, family, amusement and even city outdoor area.WiFi protocols work is in 2.4GHz industrial scientific medical (ISM) frequency range.ZigBee is based on the short distance of IEEE802.15.4 agreement, low-power consumption, wireless personal local area network agreement, ZigBee is operated in industrial scientific medical (ISM) frequency range equally, define two physical layers, i.e. 2.4GHz frequency range and 868/915MHz frequency range physical layer, and the ISM band of 868MHz and 915MHz only has in Europe and North America respectively, so it operates mainly in global range industrial scientific medical (ISM) frequency range of the 2.4GHz exempting from licence, will inevitably produce with the WiFi being operated in this frequency range and mutually disturb.
ZigBee is divided into 16 channels the ISM band of 2.4GHz, and each channel width is 2MHz, as shown in Figure 1.This frequency range is divided into 13 DS channels by WiFi, and system can be selected wherein arbitrary channel and communicate, and channel width is that 13 channel major parts of 22MHz, WiFi all have overlapping with the channel of ZigBee, and non-overlapping channel has at most 3.Obviously, assuming that WiFi system works is at arbitrary channel, then the probability of ZigBee and its channel frequency overlap is 1/4.When ZigBee with WiFi uses similar frequency bands to communicate simultaneously, along with increasing gradually of wireless device use amount, this frequency range is crowded gradually, and the inter-signal interference of similar frequency bands is also serious gradually, so the anti-interference method seeking a kind of ZigBee seems particularly important.
The optimization method that a kind of WiFi communication gets rid of ZigBee interference is there is in prior art, it is modified to the RTS/CTS mechanism in 802.11 agreements, make ZigBee node perceive the existence of WiFi communication and carry out rollback, under ZigBee interference, obtain better transmission performance to make WiFi.But because the method relates to the protocol modification of WiFi, realize relatively complicated, cost is relatively high, and reaction speed is slower.If the existence of existing ZigBee business in reality, the now intervention of WiFi business will cause ZigBee transfer of data to occur mistake.Therefore, the present invention proposes a kind of method getting rid of the interference of WiFi and ZigBee in same equipment fast.
Summary of the invention
The object of the invention is to provide a kind of straightforward procedure getting rid of the interference of WiFi and ZigBee in same equipment fast.
Especially, the invention provides and a kind ofly reduce the method that in same equipment, ZigBee and WiFi disturbs mutually, the coordination service of ZigBee module and WiFi module parameter is configured with in same equipment, when the system of described equipment starts a kind of business in ZigBee and WiFi business, detect another kind of business whether to start, if described another kind of business starts, then the physical channel of a kind of business described in Systematic selection is to avoid the physical channel of described another kind of business, if described another kind of business does not start, then system selects the physical channel of described a kind of business automatically.
Particularly, the method that in the same equipment of described reduction, ZigBee and WiFi disturbs mutually comprises the steps:
S10, open the business of described WiFi module, and judge the mode of operation of described WiFi module;
S20, adopt aggressive mode, the physical channel parameters of described WiFi module under described aggressive mode is set when described WiFi module, when described WiFi module adopts Passive Mode, the physical channel parameters of described WiFi module under described Passive Mode is set;
S30, continue described WiFi module business process and judge whether the business of described ZigBee module opens;
If the business of the described ZigBee module of S40 is opened, then obtain the physical channel parameters of described WiFi module, the physical channel parameters of described ZigBee module and the physical channel parameters of described WiFi module are set to different to avoid the other side's physical channel;
If the business of the described ZigBee module of S50 is not opened, then judge whether the business of described WiFi module terminates, if the business of described WiFi module does not terminate, then continue step S30, otherwise close the business of described WiFi module.
Preferably, described WiFi module aggressive mode comprises equipment self as Wi-Fi hotspot, shares the resource of self.
Further, under described aggressive mode, the parameter of described WiFi module, according to the capacity of equipment of self and operational environment, is arranged by system.
Preferably, described WiFi module Passive Mode comprises the extraneous Wi-Fi hotspot of equipment access, connects extraneous router.
Further, under described Passive Mode, described WiFi module parameter is determined by extraneous route, and described parameter comprises channel number, channel width.
Particularly, the physical channel parameters of described WiFi module under arranging aggressive mode described in described step S20, comprising:
First, judge the operating state of described ZigBee module, if described ZigBee module is in running order, obtain the physical channel parameters of described ZigBee module,
Then select the physical channel of described WiFi module to dodge the physical channel of described ZigBee module, if described ZigBee module is not in running order, then continue the business process of described WiFi module.
Particularly, the physical channel parameters of described WiFi module under arranging Passive Mode described in described step S20, comprising:
First, obtain the physical channel parameters of described WiFi module, and judge that whether described ZigBee module is in running order,
If described ZigBee module is not in running order, continue the process of described WiFi module,
If described ZigBee module is in running order, then judge that whether described WiFi module is overlapping with the physical channel of described in running order ZigBee module,
If the physical channel of the two is overlapping, then changes the physical channel of described ZigBee module, otherwise continue the process of described WiFi module.
The method that in the same equipment of reduction of the present invention, ZigBee and WiFi disturbs mutually, owing to not relating to the amendment of agreement, historical facts or anecdotes is now very simple, arranges speed very fast, owing to being coordinate on the physical channel, can ensure that the mutual interference of WiFi and ZigBee business is avoided completely like this.
According to hereafter by reference to the accompanying drawings to the detailed description of the specific embodiment of the invention, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present invention more.
Accompanying drawing explanation
Hereinafter describe specific embodiments more of the present invention with reference to the accompanying drawings by way of example, and not by way of limitation in detail.Reference numeral identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not be drawn in proportion.In accompanying drawing:
Fig. 1 is the schematic diagram of ZigBee signal working frequency range;
Fig. 2 is the workflow diagram of the method that in the same equipment of reduction of one embodiment of the invention, ZigBee and WiFi disturbs mutually;
Fig. 3 is the workflow diagram under the aggressive mode shown in method that in the same equipment of reduction shown in Fig. 2, ZigBee and WiFi disturbs mutually;
Fig. 4 is the workflow diagram under the Passive Mode shown in method that in the same equipment of reduction shown in Fig. 2, ZigBee and WiFi disturbs mutually.
Embodiment
Fig. 2 is the workflow diagram of the method that in the same equipment of reduction of one embodiment of the invention, ZigBee and WiFi disturbs mutually.
The invention provides and a kind ofly reduce the method that in same equipment, ZigBee and WiFi disturbs mutually, the coordination service of ZigBee module and WiFi module parameter is configured with in same equipment, when the system of described equipment starts a kind of business in ZigBee and WiFi business, detect another kind of business whether to start, if described another kind of business starts, then the physical channel of a kind of business described in Systematic selection is to avoid the physical channel of described another kind of business, if described another kind of business does not start, then system selects the physical channel of described a kind of business automatically.Due in same equipment, the operating state of each module is known, main frame is easy to the job information obtaining modules, judge according to the job information of modules, come to coordinate accordingly, so just can ensure that the mutual interference of ZigBee and WiFi business is avoided completely quickly and easily.
Particularly, as shown in Figure 2, the method that in the same equipment of described reduction, ZigBee and WiFi disturbs mutually comprises the steps:
S10, open the business of described WiFi module, and judge the mode of operation of described WiFi module;
In step slo, main purpose distinguishes the mode of operation of WiFi module, and the mode of operation of WiFi module is divided into aggressive mode and Passive Mode.
S20, adopt aggressive mode, the physical channel parameters of described WiFi module under described aggressive mode is set when described WiFi module, when described WiFi module adopts Passive Mode, the physical channel parameters of described WiFi module under described Passive Mode is set;
In step S20, the setting of the physical channel parameters of the WiFi module under aggressive mode and Passive Mode is different.
The aggressive mode of WiFi module refers to initiatively is initiated to connect by equipment, and carries out the mode of operation of data interaction (upload or download) with background server.The aggressive mode of WiFi module comprises equipment self as Wi-Fi hotspot, shares the resource of self.Typical active equipment, as wireless POS machine, namely starts to connect background server, and uploads transaction data after transaction of at every turn swiping the card completes.Therefore, under described aggressive mode, the parameter of described WiFi module, according to the capacity of equipment of self and operational environment, is arranged by system.
Particularly, the physical channel parameters of described WiFi module under arranging aggressive mode, comprising:
First, judge the operating state of described ZigBee module, if described ZigBee module is in running order, obtain the physical channel parameters of described ZigBee module,
Then select the physical channel of described WiFi module to dodge the physical channel of described ZigBee module, if described ZigBee module is not in running order, then continue the business process of described WiFi module.
The Passive Mode of WiFi module refers to that all devices is in passive wait connection status always in systems in which, only initiatively initiates the connection with equipment by background server, and carries out asking or the mode of operation of down-transmitting data.The Passive Mode of WiFi module comprises the extraneous Wi-Fi hotspot of equipment access, connect extraneous router, wherein, typical apply is some wireless sensor network, each sensor terminal is real-time in image data all the time, but the data collected are not uploaded at once, but temporarily preserves in a device, background server is the connection device of active periodically at set intervals then, and request is uploaded or downloading data.Therefore, in the passive mode, WiFi module parameter is determined by extraneous route, and its physical parameter comprises channel number, channel width.
Particularly, the physical channel parameters of described WiFi module under arranging Passive Mode, comprising:
First, obtain the physical channel parameters of described WiFi module, and judge that whether described ZigBee module is in running order,
If described ZigBee module is not in running order, continue the process of described WiFi module,
If described ZigBee module is in running order, then judge that whether described WiFi module is overlapping with the physical channel of described in running order ZigBee module,
If the physical channel of the two is overlapping, then changes the physical channel of described ZigBee module, otherwise continue the process of described WiFi module.
S30, continue described WiFi module business process and judge whether the business of described ZigBee module opens;
If the business of the described ZigBee module of S40 is opened, then obtain the physical channel parameters of described WiFi module, the physical channel parameters of described ZigBee module and the physical channel parameters of described WiFi module are set to different to avoid the other side's physical channel;
In step s 40, make the two avoid interfering with each other by the physical channel parameters coordinating ZigBee module and WiFi module, fundamentally solve problem.
If the business of the described ZigBee module of S50 is not opened, then judge whether the business of described WiFi module terminates, if the business of described WiFi module does not terminate, then continue step S30, otherwise close the business of described WiFi module.
The specific works flow process of the present embodiment will be described in detail below.
First be introduce WiFi module workflow in the active mode.
As shown in Figure 3, first be the operating state of ZigBee module in judgment device, suppose that ZigBee module is in running order, read the physical channel parameters of ZigBee module, the business of the WiFi module then in opening device, according to equipment and the operational environment of WiFi module, by the physical parameter of the Operation system setting WiFi module different from the physical channel parameters of ZigBee module, make WiFi module and ZigBee module mutually not by the interference of the other side.
Then be introduce WiFi module workflow in the passive mode.
As shown in Figure 4, first according to the physical parameter of extraneous route acquisition WiFi module, then the operating state of ZigBee module in judgment device, suppose that ZigBee module is in running order, then the physical channel parameters of ZigBee module is obtained by main frame, whether the physical channel parameters of having opened the WiFi module of business again in judgment device is overlapping with the physical channel parameters of the ZigBee module of opening business, overlapping both supposing, so by the physical parameter of the Operation system setting ZigBee module different from the physical channel parameters of WiFi module, make ZigBee module and WiFi module mutually not by the interference of the other side.
The method that in the same equipment of reduction of the present invention, ZigBee and WiFi disturbs mutually, by coordinating on the physical channel of ZigBee module and WiFi module, ensure that the mutual interference of WiFi module and ZigBee module is avoided completely, owing to not relating to the amendment of agreement, historical facts or anecdotes is now very simple, it is very fast that speed is set, solves the mutual interference problem of WiFi module and ZigBee module, improve the reliability of communication.
So far, those skilled in the art will recognize that, although multiple exemplary embodiment of the present invention is illustrate and described herein detailed, but, without departing from the spirit and scope of the present invention, still can directly determine or derive other modification many or amendment of meeting the principle of the invention according to content disclosed by the invention.Therefore, scope of the present invention should be understood and regard as and cover all these other modification or amendments.
Claims (8)
1. one kind is reduced the method that in same equipment, ZigBee and WiFi disturbs mutually, it is characterized in that, the coordination service of ZigBee module and WiFi module parameter is configured with in same equipment, when the system of described equipment starts a kind of business in ZigBee and WiFi business, detect another kind of business whether to start, if described another kind of business starts, then the physical channel of a kind of business described in Systematic selection is to avoid the physical channel of described another kind of business, if described another kind of business does not start, then system selects the physical channel of described a kind of business automatically.
2. method according to claim 1, is characterized in that, specifically comprises the steps:
S10, open the business of described WiFi module, and judge the mode of operation of described WiFi module;
S20, adopt aggressive mode, the physical channel parameters of described WiFi module under described aggressive mode is set when described WiFi module, when described WiFi module adopts Passive Mode, the physical channel parameters of described WiFi module under described Passive Mode is set;
S30, continue described WiFi module business process and judge whether the business of described ZigBee module opens;
If the business of the described ZigBee module of S40 is opened, then obtain the physical channel parameters of described WiFi module, the physical channel parameters of described ZigBee module and the physical channel parameters of described WiFi module are set to different to avoid the other side's physical channel;
If the business of the described ZigBee module of S50 is not opened, then judge whether the business of described WiFi module terminates, if the business of described WiFi module does not terminate, then continue step S30, otherwise close the business of described WiFi module.
3. method according to claim 2, is characterized in that, described WiFi module aggressive mode comprises equipment self as Wi-Fi hotspot, shares the resource of self.
4. method according to claim 3, is characterized in that, under described aggressive mode, the parameter of described WiFi module, according to the capacity of equipment of self and operational environment, is arranged by system.
5. method according to claim 2, is characterized in that, described WiFi module Passive Mode comprises the extraneous Wi-Fi hotspot of equipment access, connects extraneous router.
6. method according to claim 5, is characterized in that, under described Passive Mode, described WiFi module parameter is determined by extraneous route, and described parameter comprises channel number, channel width.
7. the method according to any one of claim 2-5, is characterized in that, the physical channel parameters of described WiFi module under arranging aggressive mode described in described step S20, comprising:
First, judge the operating state of described ZigBee module, if described ZigBee module is in running order, obtain the physical channel parameters of described ZigBee module,
Then select the physical channel of described WiFi module to dodge the physical channel of described ZigBee module, if described ZigBee module is not in running order, then continue the business process of described WiFi module.
8. the method according to any one of claim 2-5, is characterized in that, the physical channel parameters of described WiFi module under arranging Passive Mode described in described step S20, comprising:
First, obtain the physical channel parameters of described WiFi module, and judge that whether described ZigBee module is in running order,
If described ZigBee module is not in running order, continue the process of described WiFi module,
If described ZigBee module is in running order, then judge that whether described WiFi module is overlapping with the physical channel of described in running order ZigBee module,
If the physical channel of the two is overlapping, then changes the physical channel of described ZigBee module, otherwise continue the process of described WiFi module.
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| CN105939163A (en) * | 2016-03-31 | 2016-09-14 | 南京物联传感技术有限公司 | ZigBee and WiFi wireless network anti-jamming circuit |
| CN106358201A (en) * | 2016-09-26 | 2017-01-25 | 珠海格力电器股份有限公司 | Wireless communication method and device |
| CN107071909A (en) * | 2017-02-09 | 2017-08-18 | 浙江风向标科技有限公司 | The system of selection of ZigBee channels and device |
| WO2017185653A1 (en) * | 2016-04-26 | 2017-11-02 | 乐视控股（北京）有限公司 | Method and apparatus for resolving co-frequency interference |
| WO2018098990A1 (en) * | 2016-12-01 | 2018-06-07 | 华为技术有限公司 | Interference-reducing processing method, radio-frequency circuit, and network device |
| CN108551415A (en) * | 2018-06-20 | 2018-09-18 | 深圳市彬讯科技有限公司 | Intelligent domestic system, intelligent gateway and its control method |
| CN108848510A (en) * | 2018-08-20 | 2018-11-20 | 深圳市彬讯科技有限公司 | Method and apparatus, the storage medium for avoiding WIFI network and ZigBee-network from interfering with each other |
| CN108934046A (en) * | 2017-05-23 | 2018-12-04 | 中兴通讯股份有限公司 | A kind of method and device for reducing WiFi and ZigBee and interfering with each other |
| CN110536322A (en) * | 2019-09-02 | 2019-12-03 | 深圳市丰润达科技有限公司 | Channel bypassing method, device and computer readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105939163A (en) * | 2016-03-31 | 2016-09-14 | 南京物联传感技术有限公司 | ZigBee and WiFi wireless network anti-jamming circuit |
| WO2017185653A1 (en) * | 2016-04-26 | 2017-11-02 | 乐视控股（北京）有限公司 | Method and apparatus for resolving co-frequency interference |
| CN106358201A (en) * | 2016-09-26 | 2017-01-25 | 珠海格力电器股份有限公司 | Wireless communication method and device |
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| CN107071909A (en) * | 2017-02-09 | 2017-08-18 | 浙江风向标科技有限公司 | The system of selection of ZigBee channels and device |
| CN108934046A (en) * | 2017-05-23 | 2018-12-04 | 中兴通讯股份有限公司 | A kind of method and device for reducing WiFi and ZigBee and interfering with each other |
| CN108934046B (en) * | 2017-05-23 | 2022-10-18 | 中兴通讯股份有限公司 | Method and device for reducing mutual interference between WiFi and ZigBee |
| CN108551415A (en) * | 2018-06-20 | 2018-09-18 | 深圳市彬讯科技有限公司 | Intelligent domestic system, intelligent gateway and its control method |
| CN108848510A (en) * | 2018-08-20 | 2018-11-20 | 深圳市彬讯科技有限公司 | Method and apparatus, the storage medium for avoiding WIFI network and ZigBee-network from interfering with each other |
| CN110536322A (en) * | 2019-09-02 | 2019-12-03 | 深圳市丰润达科技有限公司 | Channel bypassing method, device and computer readable storage medium |
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