CN204425656U

CN204425656U - A kind of radio roaming system based on WiFi

Info

Publication number: CN204425656U
Application number: CN201520047780.5U
Authority: CN
Inventors: 罗育专; 谭志龙; 刘健; 李宇灵
Original assignee: Science And Technology Ltd Of Botong Is Netted By Shenzhen Ten Thousand
Current assignee: Science And Technology Ltd Of Botong Is Netted By Shenzhen Ten Thousand
Priority date: 2015-01-23
Filing date: 2015-01-23
Publication date: 2015-06-24
Anticipated expiration: 2025-01-23

Abstract

The utility model discloses a kind of radio roaming system based on WiFi, comprise AP controller, wireless access point device and wireless terminal; Wireless access point device is multiple, is all connected with AP controller; There is intersection adjacent wireless access point device overlay area, and adjacent wireless access point device is operated in different channels; Wireless terminal is connected based on WiFi radio communication with one of them wireless access point device under the condition obtaining connection license.The AP internetwork roaming reconnecting delay unit and be connected with signal strength signal intensity control wireless terminal should be adopted based on the radio roaming system of WiFi, easy to implement, can ensure that the wireless access point device that wireless terminal is the strongest with signal is connected.

Description

A kind of radio roaming system based on WiFi

Technical field

The utility model relates to a kind of radio roaming system based on WiFi.

Background technology

Wireless computer network obtains and propagates widely in recent years, and daily life is also more and more too busy to get away with work wirelessnetwork.When the upper wireless network of people, many times all can constantly shift position, may along with the distance with WAP (wireless access point) to be more and more far away in the moving process of user, the signal of wireless network also can become more and more weak.When wireless signal weak to a certain extent time can the connection of passive disconnection and wireless access point device (being called for short AP), if wireless terminal (being called for short STA) is again sent out connection request to this AP and also can be responded, thus can not roam into the stronger adjacent AP of signal at once.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of radio roaming system based on WiFi, should be easy to implement based on the radio roaming system of WiFi, can ensure that the wireless access point device that wireless terminal is the strongest with signal is connected.

The technical solution of utility model is as follows:

Based on a radio roaming system of WiFi, comprise AP controller, wireless access point device and wireless terminal; Wireless access point device is multiple, is all connected with AP controller; There is intersection adjacent wireless access point device overlay area, and adjacent wireless access point device is operated in different channels; Wireless terminal is connected based on WiFi radio communication with one of them wireless access point device under the condition obtaining connection license;

AP controller has the enable message of roaming function and roaming configuration message unit, for issuing the enable message of roaming function and roaming configuration message to wireless access point device;

There are in wireless access point device (1) sense cycle and signal threshold value setup unit, (2) signal strength detection unit, (3) threshold value notification packet transmitting element, (4) and reconnect delay unit and (5) message receiving element; Message receiving element is used for receiving message from AP controller;

Sense cycle and signal threshold value setup unit are used for the sense cycle and the signal threshold value that set self according to the roaming configuration message received;

There is in AP controller threshold value notification packet receiving element, disconnect user link order transmitting element and comparator; Within two cycles of continuous print, AC receives threshold value notification packet, and after signal value once secondary less than last, then the output signal of comparator triggers disconnect user link order transmitting element and sends disconnect user link order to wireless access point device.

Described wireless access point device is 2.

AP controller is called for short AC.

Beneficial effect:

Radio roaming system based on WiFi of the present utility model, reconnecting delay unit for realizing connection time delay response function by being just provided with on the AP that original signal is more weak, not allowing STA be connected on the more weak AP of original signal within the regular hour.

When STA moves between 2 AP, AC carrys out by the real-time signal strength that AP feeds back AP that control signal intensity weakens gradually and whether disconnects STA and connect, and the AP that weakens gradually of control signal intensity postpone STA reconnect request, roam on the good AP of signal strength signal intensity to make STA, thus ensure that the AP that wireless terminal is stronger with signal is as much as possible connected, and can ensure that STA can switch smoothly between different AP.

Accompanying drawing explanation

Fig. 1 is the general structure block diagram of the radio roaming system based on WiFi of the present utility model.

Embodiment

Below with reference to the drawings and specific embodiments, the utility model is described in further details:

Embodiment 1:

As shown in Figure 1, a kind of radio roaming system based on WiFi, is characterized in that, comprise AP controller, wireless access point device and wireless terminal; Wireless access point device is multiple, is all connected with AP controller; There is intersection adjacent wireless access point device overlay area, and adjacent wireless access point device is operated in different channels; Wireless terminal is connected based on WiFi radio communication with one of them wireless access point device under the condition obtaining connection license;

The course of work of the present utility model illustrates:

Apart from being placed on two AP in suitable scope respectively, make the signal between two AP can an overlapped part;

AC is configured the signal threshold value of the sense cycle of radio roaming;

AC issues the enable message of roaming function and roaming configuration message to AP;

AP opens radio roaming function according to the message of AC and sets sense cycle and signal threshold value;

Allow certain AP in STA connection;

When STA moves to another AP, when the signal intensity attenuation of STA is to signal strength threshold, AP will to AC sending threshold value notification packet;

If AC receives threshold value notification packet within two cycles of continuous print, and after signal value once secondary less than last, then control AP is disconnected the wireless connections of this user by AC,

After user is played roll off the production line by AP, if again send out connection request to original AP, AP can respond in time delay, such STA will be stronger to adjacent signal AP send connection request, and successful connection rapid with it, if STA does not run into the signal that signal strength signal intensity is greater than threshold value again, when STA reconnects upper original AP, AP can not play it again and roll off the production line.

Claims

1. based on a radio roaming system of WiFi, it is characterized in that, comprise AP controller, wireless access point device and wireless terminal; Wireless access point device is multiple, is all connected with AP controller; There is intersection adjacent wireless access point device overlay area, and adjacent wireless access point device is operated in different channels; Wireless terminal is connected based on WiFi radio communication with one of them wireless access point device under the condition obtaining connection license;