CN104159239A - Wireless access device and wireless access system - Google Patents
Wireless access device and wireless access system Download PDFInfo
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- CN104159239A CN104159239A CN201410359004.9A CN201410359004A CN104159239A CN 104159239 A CN104159239 A CN 104159239A CN 201410359004 A CN201410359004 A CN 201410359004A CN 104159239 A CN104159239 A CN 104159239A
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Abstract
The invention relates to the field of network technology, in particular to a wireless access device and a wireless access system. The wireless access device comprises at least two antennas and radio-frequency modules connected with the antennas in a one-to-one correspondence manner, wherein the radiation directions of the antennas are mutually perpendicular; the coverage diameters of the antennas are different; the working channels of the radio-frequency modules are not overlapped. By adoption of the wireless access device, more terminals can be accessed, a relatively small interference exists between the wireless access device provided by the invention and adjacent wireless access devices, the interference among the radiation signals of the antennas is also relatively small, and the application requirements of electronic bags can be well satisfied.
Description
Technical field
The present invention relates to networking technology area, relate in particular to a kind of wireless access device and wireless access system.
Background technology
Increasingly mature along with radio network technique, a kind of application of e-schoolbag obtains paying close attention to more and more widely.E-schoolbag is a kind of portable terminal that utilizes Informationization Equipment to impart knowledge to students, can store and record various learning materials, in e-schoolbag, be provided with multiple electronic cards slot, student can insert textbook card, job sheet and dictionary card and carry out daily study, can also send and receive e-mail by wireless network, with other student's exchange study gains in depth of comprehension.Obviously, the appearance of e-schoolbag, is indicating a global educational revolution, and student no longer needs to bear heavy textbook and enters classroom.
E-schoolbag is a kind of equipment based on wireless access, need to pass through WAP (wireless access point) (AP, Access Point) and obtain Internet resources, and therefore the capacity of AP has determined the result of use of e-schoolbag.
Mono-of existing AP can only access the user of 20 left and right, and the number of users in a classroom generally can reach 40-60, and the capacity of an existing AP is less, cannot meet the application demand of e-schoolbag.
Use e-schoolbag to carry out the interactive learning in classroom in order to meet student, what prior art adopted is in each classroom, to dispose many AP.But in the time of many AP of a classroom deployment, need to carry out installation and maintenance to a large amount of AP, consume a large amount of manpower and materials, and because radio frequency resources is limited, if dispose many AP, between AP, can produce more serious interference.
Summary of the invention
The embodiment of the present invention provides a kind of wireless access device and wireless access system, in order to solve the little problem of WAP (wireless access point) capacity existing in prior art.
The embodiment of the present invention provides a kind of wireless access device, the radio-frequency module that described device comprises at least two antenna bodies and connects one to one with each antenna body, wherein:
The radiation direction of all antenna bodies is mutually vertical, and the covering diameter of all antenna bodies is different, the working channel non-overlapping copies of all radio-frequency modules.
The accessible more terminal of wireless access device that adopts the embodiment of the present invention to provide, and the wireless access device that the embodiment of the present invention provides and the interference of adjacent wireless access device are less, interference between the radiation signal of each antenna body is also less, can meet well the application demand of e-schoolbag.
Alternatively, described device comprises three antenna bodies, be respectively the first antenna body, the second antenna body and third antenna body, and the first radio-frequency module being connected with described the first antenna body, the second radio-frequency module being connected with described the second antenna body, the 3rd radio-frequency module that is connected with described third antenna body, wherein:
The radiation direction of described the first antenna body is first direction, and the radiation direction of described the second antenna body is second direction, and the radiation direction of described third antenna body is third direction, and first direction, second direction and third direction are mutually vertical;
The covering diameter of described the first antenna body is less than the covering diameter of described the second antenna body, and the covering diameter of described the second antenna body is less than the covering diameter of described third antenna body;
The working channel non-overlapping copies of three radio-frequency modules.
Alternatively, the direction of the ceiling directed towards ground that described first direction is room, the Width that described second direction is room, the length direction that described third direction is room; Or,
Described first direction is the direction of the ceiling directed towards ground in room, the length direction that described second direction is room, the Width that described third direction is room.
Particularly, the area coverage of described third antenna body is greater than the area in room and the covering diameter of described third antenna body is the preset multiple of the covering diameter of described the second antenna body, and the covering diameter of described the second antenna body is the preset multiple of the covering diameter of described the first antenna body.
Particularly, the transmitted power of described the first radio-frequency module is less than the transmitted power of described the second radio-frequency module, and the transmitted power of described the second radio-frequency module is less than the transmitted power of described the 3rd radio-frequency module.
Particularly, the working channel of three radio-frequency modules is respectively a channel in channel 1, channel 6 and the channel 11 under 2.4GHz frequency range; Or,
The working channel of three radio-frequency modules is respectively any one channel in 13 independent channels under 5.8GHz frequency range.
Alternatively, three antenna bodies are separately fixed on same antenna base plate; Between three antenna bodies, use a brandreth to isolate, the one side of described brandreth is fixed on described Antenna baseplate, the top cover laminating of another side and described wireless access device.
Alternatively, the distance between any two antenna bodies is not less than predeterminable range.
Alternatively, described device also comprises the control module being all connected with three radio-frequency modules, wherein:
Described control module, for determining the signal strength values of each terminal to be accessed in room; The m of a signal strength values maximum terminal is connected to described the first radio-frequency module, disconnect the connection of n terminal of access rate value minimum in a described m terminal, and disconnect the connection that is less than the terminal of default first rate threshold value to access rate value in m-n terminal of described the first radio-frequency module; M terminal of signal strength values maximum in the terminal of remaining not successful connection is connected to described the second radio-frequency module, disconnect to the connection of n terminal of access rate value minimum in m terminal of described the second radio-frequency module, and disconnect the connection that is less than the terminal of default the second rate-valve value to access rate value in m-n terminal of described the second radio-frequency module; The terminal of remaining not successful connection is connected to described the 3rd radio-frequency module, and while existing access rate value to be less than the terminal of default third speed threshold value in the terminal that is connected to described the 3rd radio-frequency module, disconnect the connection that is less than the terminal of default third speed threshold value to access rate value in the terminal of described the 3rd radio-frequency module, and send alarm; Wherein, m=N/3+n, N is the quantity of terminal to be accessed in room, n is not less than 0 integer.
The embodiment of the present invention also provides a kind of wireless access system, comprise at least two wireless access devices as described above, wherein, on the ceiling of each wireless access device difference installation of ceiling in the middle of each room, the working channel of the radio-frequency module that in the wireless access device in a room, the antenna body of covering diameter maximum is corresponding, the working channel of the radio-frequency module corresponding from the antenna body of covering diameter maximum in the wireless access device of adjacent room is different.
Brief description of the drawings
Fig. 1 is a structural representation of wireless access device in the embodiment of the present invention;
Fig. 2 is another structural representation of wireless access device in the embodiment of the present invention;
For wireless access device installation of ceiling that the embodiment of the present invention is provided, the signal on the ceiling in the middle of room time covers schematic diagram to Fig. 3 a;
For wireless access device installation of ceiling that the embodiment of the present invention is provided, another signal on the ceiling in the middle of room time covers schematic diagram to Fig. 3 b;
Fig. 4 is the structural representation of the antenna body of wireless access device in the embodiment of the present invention;
Fig. 5 is the another structural representation of wireless access device in the embodiment of the present invention;
Fig. 6 is that the signal when wireless access device in the embodiment of the present invention is distinguished on the ceiling of installation of ceiling in the middle of 3 rooms covers schematic diagram.
Embodiment
The wireless access device that the embodiment of the present invention provides comprises at least two radio-frequency modules, therefore can access more terminal, because the covering diameter of all antenna bodies in wireless access device is different, therefore less with the interference of adjacent wireless access device, due to the radiation direction of all antenna bodies in the wireless access device working channel non-overlapping copies of vertical and all radio-frequency modules mutually, therefore the interference between the radiation signal of each antenna body is also less.
Below in conjunction with Figure of description, embodiments of the present invention is further illustrated, but the present invention is not limited to the following examples.
As shown in Figure 1, the radio-frequency module that the wireless access device that the embodiment of the present invention provides comprises at least two antenna bodies and connects one to one with each antenna body, wherein, the radiation direction of all antenna bodies is mutually vertical, the covering diameter of all antenna bodies is different, and the working channel non-overlapping copies of all radio-frequency modules, in Fig. 1, antenna body 11 is connected with radio-frequency module 21, and antenna body 12 is connected with radio-frequency module 22.Wherein, in embodiment of the present invention scheme, the major function of radio-frequency module has been the conversion between baseband signal and radiofrequency signal, for example, radio-frequency module 21 converts the baseband signal receiving to radiofrequency signal and is transmitted in space by antenna body 11, and radio-frequency module 21 will convert baseband signal to from the radiofrequency signal of antenna body 11.
In a specific embodiment, as shown in Figure 2, wireless access device provided by the invention comprises three antenna bodies, be respectively the first antenna body 31, the second antenna body 32 and third antenna body 33, and the first radio-frequency module 41 being connected with the first antenna body 31, the second radio-frequency module 42 being connected with the second antenna body 32, the 3rd radio-frequency module 43 that is connected with third antenna body 33, wherein:
The radiation direction of the first antenna body 31 is first direction, and the radiation direction of the second antenna body 32 is second direction, and the radiation direction of third antenna body 33 is third direction, and first direction, second direction and third direction are mutually vertical;
The covering diameter of the first antenna body 31 is less than the covering diameter of the second antenna body 32, and the covering diameter of the second antenna body 32 is less than the covering diameter of third antenna body 33;
The working channel non-overlapping copies of three radio-frequency modules.
Particularly, the direction of the ceiling directed towards ground that first direction is room, the Width that second direction is room, the length direction that third direction is room.
Particularly, the area coverage of third antenna body 33 is greater than the area in room and the covering diameter of third antenna body 33 is the preset multiple of the covering diameter of the second antenna body 32, and the covering diameter of the second antenna body 32 is the preset multiple of the covering diameter of the first antenna body 31.In an instantiation, preset multiple can be twice.
Particularly, the transmitted power of the first radio-frequency module 41 is less than the transmitted power of the second radio-frequency module 42, and the transmitted power of the second radio-frequency module 42 is less than the transmitted power of the 3rd radio-frequency module 43.Wherein, between the transmitted power of radio-frequency module and the covering diameter of corresponding antenna body, there is certain corresponding relation.
For example, suppose that a room is of a size of 7 meters (wide) * 10 meters (length), the transmitted power that the first radio-frequency module 41 can be set is that the transmitted power of 1dBm, the second radio-frequency module 42 is that the transmitted power of 7dBm, the 3rd radio-frequency module 43 is 13dBm, is that 8 meters, the covering diameter of third antenna body 33 are 16 meters thereby the covering diameter of the first antenna body 31 is 4 meters, the covering diameter of the second antenna body 32.Wherein, the transmitted power of the first radio-frequency module, the second radio-frequency module, the 3rd radio-frequency module increases according to 6dB, is because signal covering diameter doubles, and signal demand strengthens 6dB.In specific implementation process, can arrange the transmitted power of each radio-frequency module by the micro-control unit (MCU, Micro Control Unit) being all connected with each radio-frequency module in wireless access device.
For wireless access device installation of ceiling that the embodiment of the present invention is provided, the signal on the ceiling in the middle of room time covers schematic diagram as shown in Figure 3 a.Wherein, the covering of the first antenna body is shaped as circle, the covering shape of the second antenna body and third antenna body is ellipse, the covering diameter of the second antenna body and third antenna body is oval major axis, the radiation direction of the first antenna body is the direction of the ceiling directed towards ground in room, the radiation direction of the second antenna body is the Width in room, the length direction that the radiation direction of third antenna body is room, the shape that the rectangle in Fig. 3 a is room.
From Fig. 3 a, can find out, the coverage minimum of the first antenna body, the coverage of the second antenna body is greater than the coverage of the first antenna body, the coverage maximum of third antenna body.Like this, the coverage that is arranged on the first antenna body of the wireless access device in this room can be not overlapping with the coverage of the first antenna body of the wireless access device that is arranged on next room, thereby greatly reduced the interference between adjacent wireless access device.Therefore, on the ceiling of the wireless access device installation of ceiling that the embodiment of the present invention is provided in the middle of the classroom time, student can use e-schoolbag to carry out interactive learning efficiently, reduce occur cannot access of radio network situation.
Alternatively, the direction of the ceiling directed towards ground that first direction is room, the length direction that second direction is room, the Width that third direction is room.For wireless access device installation of ceiling that the embodiment of the present invention is provided, another signal on the ceiling in the middle of room time covers schematic diagram as shown in Figure 3 b.Wherein, the direction of the ceiling directed towards ground that the radiation direction of the first antenna body is room, the length direction that the radiation direction of the second antenna body is room, the Width that the radiation direction of third antenna body is room.
In specific implementation process, above-mentioned preset multiple can be set according to actual conditions, the basic principle of its setting is: the area of effective coverage that ensures the area of effective coverage of the first antenna body and the area of effective coverage of the second antenna body, third antenna body is roughly equal, thereby realizes the equilibrium access (number of terminals that is each radio-frequency module access is roughly equal) of terminal.Wherein, the area of effective coverage of the first antenna body is the actual area coverage of the first antenna body, the area of effective coverage of the second antenna body is the poor of the actual area coverage of the second antenna body and the actual area coverage of the first antenna body, and the area of effective coverage of third antenna body is the poor of the actual area coverage of third antenna body and the actual area coverage of the second antenna body.Be depicted as example with Fig. 3 a, the area of effective coverage of the first antenna body is the area of the circle that the first antenna body is corresponding, the area of effective coverage of the second antenna body is area poor of the circle that oval area that the second antenna body is corresponding is corresponding with the first antenna body, and the area of effective coverage of third antenna body is the poor of oval area that oval area that third antenna body is corresponding is corresponding with the second antenna body.But because the area coverage of third antenna body is greater than the area in room, room body of wall is larger to the loss of signal, the area of effective coverage of third antenna body can be a bit larger tham the area of effective coverage of the second antenna body.
It should be noted that, radio-frequency module in the wireless access that the embodiment of the present invention provides can be operated in 2.4GHz frequency range (2.4GHz to 2.4835GHz) or 5.8GHz frequency range (5.17GHz to 5.925GHz), if be operated in 2.4GHz frequency range, in Fig. 2, the working channel of three radio-frequency modules is respectively a channel in channel 1, channel 6 and the channel 11 under 2.4GHz frequency range; If be operated in 5.8GHz frequency range, in Fig. 2, the working channel of three radio-frequency modules is respectively any one channel in 13 independent channels (channel 36, channel 40, channel 44, channel 48, channel 52, channel 56, channel 60, channel 64, channel 149, channel 153, channel 157, channel 161 and channel 165) under 5.8GHz frequency range, and the working channel non-overlapping copies of three radio-frequency modules.Antenna body in the wireless access that the embodiment of the present invention provides is dual-band antenna, can support reception and the transmitting of 2.4GHz frequency range and 5.8GHz frequency range radiofrequency signal.
Preferably, in order to reduce the radiated interference between three antenna bodies in a wireless access device, as shown in Figure 4, three antenna bodies (the first antenna body 31, the second antenna body 32 and third antenna body 33) can be separately fixed on same antenna base plate 401, and between three antenna bodies, use a brandreth 402 to isolate, the one side of brandreth is fixed on Antenna baseplate 401, top cover (not shown in Fig. 4) laminating of another side and wireless access device, thus realize the isolation between antenna body.It should be noted that, in specific implementation process, the shape of brandreth is not limited to triangle, as long as the isolation that can realize between antenna body all can, for example, the shape of brandreth can be quadrangle or pentagon, and any two antenna bodies are respectively on the both sides of a drift angle of brandreth.The shape of Antenna baseplate is also not limited to rectangle, for example, can be circular.
Preferably, the distance between any two antenna bodies is not less than predeterminable range, ensures that two antenna bodies can not lean on too near.In an instantiation, predeterminable range can be 8 centimetres.
Preferably, as shown in Figure 5, the wireless access device that the embodiment of the present invention provides also comprises the control module 51 being all connected with three radio-frequency modules, wherein:
Control module 51, for determining the signal strength values of each terminal to be accessed in room; The m of a signal strength values maximum terminal is connected to the first radio-frequency module 41, disconnect to the connection of n terminal of access rate value minimum in m terminal of the first radio-frequency module 41, and disconnect the connection that is less than the terminal of default first rate threshold value to access rate value in m-n terminal of the first radio-frequency module 41; M terminal of signal strength values maximum in the terminal of remaining not successful connection is connected to the second radio-frequency module 42, disconnect to the connection of n terminal of access rate value minimum in m terminal of the second radio-frequency module 42, and disconnect the connection that is less than the terminal of default the second rate-valve value to access rate value in m-n terminal of the second radio-frequency module 42; The terminal of remaining not successful connection is connected to the 3rd radio-frequency module 43, and while existing access rate value to be less than the terminal of default third speed threshold value in the terminal that is connected to the 3rd radio-frequency module 43, disconnect the connection that is less than the terminal of default third speed threshold value to access rate value in the terminal of the 3rd radio-frequency module 43, and send alarm; Wherein, m=N/3+n, the maximum that N the is current room number that accesses terminal, n is not less than 0 integer.
Wherein, first rate threshold value, the second rate-valve value and third speed threshold value are can be all identical, part is identical or all different.In a specific implementation, first rate threshold value is greater than the second rate-valve value, the second rate-valve value is greater than third speed threshold value, and for example, first rate threshold value is that 48Mbps (megabit is per second), the second rate-valve value are that 36Mbps, third speed threshold value are 24Mbps.In another specific implementation, first rate threshold value equals the second rate-valve value, and the second rate-valve value is greater than third speed threshold value, and for example, first rate threshold value and the second rate-valve value are 48Mbps, and third speed threshold value is 24Mbps.In another specific implementation, first rate threshold value, the second rate-valve value, third speed threshold value are all equal, and for example, first rate threshold value, the second rate-valve value and third speed threshold value are 24Mbps.
Particularly, terminal is in the time of needs access of radio network, the wireless access device that can provide to the embodiment of the present invention sends surveys (Probe) frame, the explore frame that control module in wireless access device can send based on terminal is determined the signal strength values of this terminal, wherein, the signal strength values of terminal can be received signal strength indicator value (RSSI, Received Signal Strength Indication).In specific implementation process, for a terminal, control module can be collected the signal strength values of 5 above these terminals, and 3 signal strength values maximum in the signal strength values of collection are averaged as the signal strength values of final this terminal of determining.
Control module is being determined after the signal strength values of each terminal to be accessed, first the m of a signal strength values maximum terminal is connected to the first radio-frequency module 41, by the radio-frequency module corresponding to antenna body of m the strongest terminal priority access coverage minimum of access capability.Afterwards, then disconnect to the connection of n terminal of access rate value minimum in m terminal of the first radio-frequency module 41, now, the quantity that is connected to the terminal of the first radio-frequency module 41 is m-n.M-n terminal is being connected to after the first radio-frequency module 41, if exist access rate value to be less than the terminal of default first rate threshold value in this m-n terminal, disconnecting the connection that access rate value in this m-n terminal is less than the terminal of presetting first rate threshold value.
Then, m terminal of signal strength values maximum in the terminal of remaining not successful connection is connected to the second radio-frequency module 42 by control module, by the strongest m terminal priority access coverage time little radio-frequency module corresponding to antenna body of access capability in remaining terminal.Afterwards, then disconnect to the connection of n terminal of access rate value minimum in m terminal of the second radio-frequency module 42, now, the quantity that is connected to the terminal of the second radio-frequency module 42 is m-n.M-n terminal is being connected to after the second radio-frequency module 42, if exist access rate value to be less than the terminal of default the second rate-valve value in this m-n terminal, disconnecting the connection that access rate value in this m-n terminal is less than the terminal of presetting the second rate-valve value.
Finally, the terminal of remaining not successful connection is connected to the 3rd radio-frequency module 43 by control module, and while existing access rate value to be less than the terminal of default third speed threshold value in the terminal that is connected to the 3rd radio-frequency module 43, disconnect the connection that is less than the terminal of default third speed threshold value to access rate value in the terminal of the 3rd radio-frequency module 43, and send alarm, complete thus the balanced access control of terminal.Wherein, the object of sending alarm is that the access rate of prompt terminal is too low, may be terminal existing problems.In an instantiation, the value of n can be 3.
Wherein, control unit is specifically as follows central processing unit (CPU, Central Processing Unit).
The wireless access device providing based on the embodiment of the present invention, the embodiment of the present invention also provides a kind of wireless access system, comprise at least two wireless access devices as described above, wherein, on the ceiling of each wireless access device difference installation of ceiling in the middle of each room, the working channel of the radio-frequency module that in the wireless access device in a room, the antenna body of covering diameter maximum is corresponding, the working channel of the radio-frequency module corresponding from the antenna body of covering diameter maximum in the wireless access device of adjacent room is different.Preferably, the working channel of the radio-frequency module that in the wireless access device in a room, the antenna body of covering diameter maximum is corresponding, the working channel of the radio-frequency module corresponding with the antenna body of covering diameter minimum in the wireless access device of adjacent room is identical.
Signal while being illustrated in figure 6 the wireless access device that on the ceiling in the middle of 3 rooms, the installation of ceiling embodiment of the present invention provides respectively covers schematic diagram.The working channel of the 3rd radio-frequency module that wherein, in the wireless access device in room 1, third antenna body is corresponding is that the working channel of the 3rd radio-frequency module that in the wireless access device in channel 1, room 2, third antenna body is corresponding is that the working channel of the 3rd radio-frequency module that in the wireless access device in channel 11, room 3, third antenna body is corresponding is channel 1.Wherein, the body of wall that the dotted line in Fig. 6 is room.Based on this, be arranged on interference between two wireless access devices in two adjacent room very little.
It should be noted that, the wireless access device that the embodiment of the present invention provides can be applicable to the intensive places of user such as school, exhibition room, meeting room, venue.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and amendment to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (10)
1. a wireless access device, is characterized in that, the radio-frequency module that described device comprises at least two antenna bodies and connects one to one with each antenna body, wherein:
The radiation direction of all antenna bodies is mutually vertical, and the covering diameter of all antenna bodies is different, the working channel non-overlapping copies of all radio-frequency modules.
2. device as claimed in claim 1, it is characterized in that, described device comprises three antenna bodies, be respectively the first antenna body, the second antenna body and third antenna body, and the first radio-frequency module being connected with described the first antenna body, the second radio-frequency module being connected with described the second antenna body, the 3rd radio-frequency module that is connected with described third antenna body, wherein:
The radiation direction of described the first antenna body is first direction, and the radiation direction of described the second antenna body is second direction, and the radiation direction of described third antenna body is third direction, and first direction, second direction and third direction are mutually vertical;
The covering diameter of described the first antenna body is less than the covering diameter of described the second antenna body, and the covering diameter of described the second antenna body is less than the covering diameter of described third antenna body;
The working channel non-overlapping copies of three radio-frequency modules.
3. device as claimed in claim 2, is characterized in that,
Described first direction is the direction of the ceiling directed towards ground in room, the Width that described second direction is room, the length direction that described third direction is room; Or,
Described first direction is the direction of the ceiling directed towards ground in room, the length direction that described second direction is room, the Width that described third direction is room.
4. device as claimed in claim 2, is characterized in that,
The area coverage of described third antenna body is greater than the area in room and the covering diameter of described third antenna body is the preset multiple of the covering diameter of described the second antenna body, and the covering diameter of described the second antenna body is the preset multiple of the covering diameter of described the first antenna body.
5. device as claimed in claim 2, is characterized in that,
The transmitted power of described the first radio-frequency module is less than the transmitted power of described the second radio-frequency module, and the transmitted power of described the second radio-frequency module is less than the transmitted power of described the 3rd radio-frequency module.
6. device as claimed in claim 2, is characterized in that,
The working channel of three radio-frequency modules is respectively a channel in channel 1, channel 6 and the channel 11 under 2.4GHz frequency range; Or,
The working channel of three radio-frequency modules is respectively any one channel in 13 independent channels under 5.8GHz frequency range.
7. device as claimed in claim 2, is characterized in that,
Three antenna bodies are separately fixed on same antenna base plate; Between three antenna bodies, use a brandreth to isolate, the one side of described brandreth is fixed on described Antenna baseplate, the top cover laminating of another side and described wireless access device.
8. device as claimed in claim 2, is characterized in that,
Distance between any two antenna bodies is not less than predeterminable range.
9. device as claimed in claim 2, is characterized in that, described device also comprises the control module being all connected with three radio-frequency modules, wherein:
Described control module, for determining the signal strength values of each terminal to be accessed in room; The m of a signal strength values maximum terminal is connected to described the first radio-frequency module, disconnect the connection of n terminal of access rate value minimum in a described m terminal, and disconnect the connection that is less than the terminal of default first rate threshold value to access rate value in m-n terminal of described the first radio-frequency module; M terminal of signal strength values maximum in the terminal of remaining not successful connection is connected to described the second radio-frequency module, disconnect to the connection of n terminal of access rate value minimum in m terminal of described the second radio-frequency module, and disconnect the connection that is less than the terminal of default the second rate-valve value to access rate value in m-n terminal of described the second radio-frequency module; The terminal of remaining not successful connection is connected to described the 3rd radio-frequency module, and while existing access rate value to be less than the terminal of default third speed threshold value in the terminal that is connected to described the 3rd radio-frequency module, disconnect the connection that is less than the terminal of default third speed threshold value to access rate value in the terminal of described the 3rd radio-frequency module, and send alarm; Wherein, m=N/3+n, N is the quantity of terminal to be accessed in room, n is not less than 0 integer.
10. a wireless access system, it is characterized in that, comprise at least two wireless access devices as described in as arbitrary in claim 1～9, wherein, on the ceiling of each wireless access device difference installation of ceiling in the middle of each room, the working channel of the radio-frequency module that in the wireless access device in a room, the antenna body of covering diameter maximum is corresponding, the working channel of the radio-frequency module corresponding from the antenna body of covering diameter maximum in the wireless access device of adjacent room is different.
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| EP3185425A1 (en) * | 2015-12-24 | 2017-06-28 | Huawei Technologies Co., Ltd. | Wireless access point with two radio frequency modules of same frequency band and signal interference reduction method |
| CN108108798A (en) * | 2016-11-25 | 2018-06-01 | 国基电子（上海）有限公司 | Antenna and electronic tag communicator |
| CN108124308A (en) * | 2016-11-30 | 2018-06-05 | 华为技术有限公司 | A kind of wireless device and localization method |
| CN109121187A (en) * | 2017-06-22 | 2019-01-01 | 中国移动通信有限公司研究院 | A kind of business transmitting method, equipment and computer readable storage medium |
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| EP3185425A1 (en) * | 2015-12-24 | 2017-06-28 | Huawei Technologies Co., Ltd. | Wireless access point with two radio frequency modules of same frequency band and signal interference reduction method |
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| US10609721B2 (en) | 2015-12-24 | 2020-03-31 | Huawei Technologies Co., Ltd. | Wireless access point with two radio frequency modules of same frequency band and signal interference reduction method |
| CN106922013B (en) * | 2015-12-24 | 2020-04-21 | 华为技术有限公司 | Wireless access point of same-frequency-band double radio frequency modules and method for reducing signal interference |
| CN108108798A (en) * | 2016-11-25 | 2018-06-01 | 国基电子（上海）有限公司 | Antenna and electronic tag communicator |
| CN108124308A (en) * | 2016-11-30 | 2018-06-05 | 华为技术有限公司 | A kind of wireless device and localization method |
| CN108124308B (en) * | 2016-11-30 | 2020-06-02 | 华为技术有限公司 | Wireless device and positioning method |
| CN109121187A (en) * | 2017-06-22 | 2019-01-01 | 中国移动通信有限公司研究院 | A kind of business transmitting method, equipment and computer readable storage medium |
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