WO2012083827A1 - 一种即时通信系统、接入设备、通讯设备及通讯设备接入网络的方法 - Google Patents

一种即时通信系统、接入设备、通讯设备及通讯设备接入网络的方法 Download PDF

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Publication number
WO2012083827A1
WO2012083827A1 PCT/CN2011/084147 CN2011084147W WO2012083827A1 WO 2012083827 A1 WO2012083827 A1 WO 2012083827A1 CN 2011084147 W CN2011084147 W CN 2011084147W WO 2012083827 A1 WO2012083827 A1 WO 2012083827A1
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WO
WIPO (PCT)
Prior art keywords
distance
access
network
control module
module
Prior art date
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PCT/CN2011/084147
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English (en)
French (fr)
Inventor
张建国
朱杉
Original Assignee
国民技术股份有限公司
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Application filed by 国民技术股份有限公司 filed Critical 国民技术股份有限公司
Publication of WO2012083827A1 publication Critical patent/WO2012083827A1/zh
Priority to US13/915,459 priority Critical patent/US9351240B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/04—Real-time or near real-time messaging, e.g. instant messaging [IM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0492—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload by using a location-limited connection, e.g. near-field communication or limited proximity of entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H04W48/04—Access restriction performed under specific conditions based on user or terminal location or mobility data, e.g. moving direction, speed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/21—Monitoring or handling of messages
    • H04L51/222—Monitoring or handling of messages using geographical location information, e.g. messages transmitted or received in proximity of a certain spot or area
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/58—Message adaptation for wireless communication

Definitions

  • the present invention relates to the field of communications, and in particular, to an instant messaging system, an access device, and a communication device and a method for a communication device to access a network.
  • the communication equipment can access the wireless network to realize instant communication.
  • the distance of the coverage of the wireless network such as the WIFI connection mode
  • the network coverage ranges from several tens of meters to several hundred meters, the range ⁇ It is uncontrollable.
  • WIFI has been used in some specific areas such as campuses, enterprises, etc.
  • the passwords used when accessing the wireless network must be set in the process of use, in order to prevent terminals outside the area from coming in.
  • the user terminal within the area needs to perform password verification when it is used, which brings inconvenience to the user terminal within the area, and is very complicated to use. The reason is because WIFI can't do precise control of distance.
  • the technical problem to be solved by the present invention is to provide an instant communication system, an access device, and a communication device capable of conveniently accessing a network for instant communication in a specific area in view of the deficiencies of the prior art.
  • the present invention adopts the following technical solutions:
  • An instant messaging system includes: an access device and at least one communication device; the access device is configured to determine whether a distance of the communication device to the access device reaches a preset access distance when accessing the network, If so, the communication device communicates through the access.
  • the access device includes a distance control module, a first wireless communication module, and a first control module for coordinating and controlling operations of the distance control module and the first wireless communication module;
  • the communication device includes a distance response module a second wireless communication module and a second control module for coordinating, controlling, and operating the distance response module and the second wireless communication module;
  • the distance control module and the distance response module are connected by a distance characteristic signal, and are used to control a preset access of the communication device to the access device when the communication device accesses the network;
  • the first wireless communication module and the second wireless communication module are connected by using a network signal, and configured to enable the communication device to access the network through the access device;
  • the first wireless communication module When the access device determines that the distance from the communication device to the access device reaches a preset access distance when accessing the network, the first wireless communication module establishes a connection with the second wireless communication module, so that The communication device accesses the network through the access device to implement instant communication between the communication device and other communication devices in the network.
  • the invention also provides an access device, comprising a distance control module and a control module, wherein the distance control module is configured to send a distance characteristic signal and connect within a preset access distance
  • the control module is configured to determine whether the distance from the communication device to the access device reaches a preset access distance; if the distance control module receives the response information, The control module determines that the preset access distance is reached, allows the communication device to access the network, and saves the response information in the control module; and the control module sends the network access parameter to the distance control module.
  • the distance response module comprising a distance control module and a control module, wherein the distance control module is configured to send a distance characteristic signal and connect within a preset access distance
  • the control module is configured to determine whether the distance from the communication device to the access device reaches a preset access distance; if the distance control module receives the response information, The control module determines that the preset access distance is reached, allows the communication device to access the network, and saves the response information in the control module;
  • the present invention also provides a communication device, including a distance response module and a wireless communication module, the distance response module is configured to receive a distance characteristic signal sent by an access device and return a response information within a preset access distance, and receive the connection
  • the ingress device determines the network access parameter that is sent after the response information is legal
  • the wireless communication module is configured to access the network by using the access device according to the network access parameter.
  • Another object of the present invention is to provide a method of accessing a network by a communication device in which a user can conveniently access a network for instant communication in a specific area.
  • a method for a communication device to access a network is specifically a method for an access device to allow a communication device to access a network, and the specific steps are:
  • the distance control module sends a distance characteristic signal in a broadcast form within a preset access distance
  • the distance response module receives the distance characteristic signal and returns first response information to the distance control module;
  • the distance control module receives the first response information, and the access device determines that the distance from the communication device to the access device reaches a preset access distance, and saves the first response information in the In the first control module, the first control module sends a network access parameter to the distance response module through the distance control module;
  • the distance response module sends the received network access parameter to the first wireless communication module through the second control module and the second wireless communication module in sequence;
  • the first wireless communication module establishes a first according to the received network access parameter A network signal connection between the wireless communication module and the second wireless communication module.
  • the distance response module receives the distance characteristic signal and returns a first response message to the distance control module, and before returning the response information, further determines whether the distance response module receives the distance feature signal, and if so, Returns the response message, if no, continues to wait.
  • the distance control module receives the first response information, and the access device determines that the distance from the communication device to the access device reaches a preset access distance, and the first response information And saving, in the first control module, the first control module sends the network access parameter to the distance response module by using the distance control module, and before the sending the network access parameter, the first control module further Determining whether the first response information is legal. If it is legal, the network access parameter is sent to the distance response module. If not, the execution distance control module returns the distance characteristic signal in a broadcast form within a preset access distance.
  • the manner in which the distance control module sends the distance feature signal is active polling, or is sent after being triggered.
  • the manner in which the distance control module is triggered to transmit the distance characteristic signal is:
  • the distance response module sends a request access signal to the distance control module; after receiving the request access signal, the distance control module transmits the distance feature signal in a broadcast form.
  • the distance control module further detects the distance from the communication device to the access device: the distance control module periodically issues the command information to request the communication device to return the second response information; The first control module receives the second response information through the distance control module and compares it with the first response information stored in itself, and if they match, maintains a network connection with the communication device, and if not, disconnects and communicates The network connection of the device.
  • the distance characteristic signal is a sound signal, or an optical signal, or an electromagnetic wave signal.
  • the access device determines whether the distance from the communication device to the access device reaches the preset access distance when accessing the network, and allows the preset access to be reached.
  • the distance communication device accesses the network through the access device, thereby realizing instant communication between the communication device and other communication within the network.
  • the user accesses the network by using the communication device, the user can access the network to perform instant communication, as long as the user does not need to perform password verification within the preset access distance range in which the access device is allowed to access the network, thereby performing instant communication. It greatly enlarges the flow when the communication device accesses the network, which brings convenience to the user.
  • the distance control module detects the distance from the communication device to the access device, so that when the distance from the communication device to the access device exceeds the preset access distance, the device automatically disconnects. Open the network, thus reducing unnecessary waste of resources.
  • FIG. 1 is a system architecture diagram of an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a module according to another embodiment of the present invention.
  • FIG. 3 is a flow chart of a method for a communication device to access a network according to an embodiment of the present invention
  • FIG. 4 is a flow chart of a method for accessing a network by a communication device according to another embodiment of the present invention.
  • FIG. 5 is a flow chart of distance detection by the distance control module in one embodiment of the present invention. detailed description The present invention will be further described in detail below with reference to the accompanying drawings.
  • the present invention relates to an instant messaging system. Since the instant messaging system in the prior art can hardly control the distance covered by the wireless network, the coverage area of the wireless network is also outside the specific area, so that users outside the specific area are also Can access the network. In order to circumvent the access of the user (illegal user) outside the specific area to the network, the user (legal user) within the specific area usually needs to perform password verification when using the communication device to access the network, which complicates the process of accessing the network.
  • the communication device can be connected to the network, thereby bringing convenience to the user.
  • the present invention proposes an instant communication system capable of accurately controlling the distance from a communication device to an access device of the access network.
  • the main idea is: the instant messaging system includes an access device and at least one communication device; and the access device determines whether the distance from the communication device to the access device reaches a preset access distance when accessing the network, and if so, The communication device is allowed to access the network through the access device, thereby realizing instant communication between the communication device and other communication devices in the network.
  • the access device in the instant messaging system determines whether the distance from the communication device to the access device reaches the preset access distance when accessing the network, and allows the preset access distance to be reached.
  • the communication device directly accesses the network without password verification, thereby facilitating the access process and facilitating the user's use.
  • the access device can determine whether the distance from the communication device to the access device reaches a preset access distance when accessing the network.
  • the access device includes a distance control module, a first wireless communication module, and a first control module for coordinating, controlling, and working of the distance control module and the first wireless communication module; Response module, a second wireless communication module and a second control module for coordinating and controlling the operation of the distance response module and the second wireless communication module; the distance control module and the distance response module are connected by a distance characteristic signal for controlling communication device access a network, a preset access distance of the communication device to the access device; the first wireless communication module and the second wireless communication module are connected by a network signal, and are used to enable the communication device to access the network through the access device;
  • the access device and the communication device may enable the first wireless communication module and the second wireless according to the wireless communication protocol.
  • the communication module establishes a connection through the network signal, so that the communication device accesses the wireless network through the access device, thereby realizing instant communication between the communication device and other communication devices in the network.
  • the access device determines that the distance from the communication device to the access device does not reach the preset access distance when accessing the network, the communication device is not allowed to access the network, and the first wireless communication module communicates with the second wireless.
  • the communication module cannot be connected, so the communication device cannot implement instant communication.
  • the reason why the first wireless communication module communication is not connected to the second wireless communication module is mainly because the second wireless communication module does not obtain the authorization of the first wireless communication module.
  • the preset access distance is the maximum distance from the communication device to the access device when the communication device is allowed to access the network.
  • the communication device can Access to the network.
  • this range in which the preset access distance is determined is referred to as a specific area.
  • the communication device that does not reach the preset access distance when the communication device reaches the access device does not access the network. Even if there is coverage of the wireless network outside the specific area, the communication device exceeds the pre-preparation.
  • the access distance is set and the network cannot be accessed, thus preventing the user terminal outside the specific area from accessing the network.
  • there are many types of communication devices that perform instant communication in a specific area such as a mobile phone, a notebook computer, or a tablet computer.
  • the preset access distance is an artificially set maximum distance from the communication device to the access device when the communication device is allowed to access the wireless network, depending on the specific region.
  • Set the size and actual demand such as 10 meters, 30 meters, 50 meters and so on. That is to say, the preset access distance is an accurate distance value, and the distance control module/distance response module is used for setting and controlling the precise preset access distance, thereby accurately determining whether the communication device is allowed to access.
  • a method for a communication device to access a network that is, the access device specifically allows the communication device to access the network as follows:
  • the distance control module in the access device sends the distance feature signal in a broadcast form within a preset access distance; the distance feature information carried in the distance feature signal controls the communication device to the access device when the communication device is allowed to access the network.
  • the maximum distance which is the preset access distance mentioned above.
  • the distance response module in the communication device receives the distance characteristic signal and returns the first response message.
  • the distance control module detects whether the first response information returned by the response module is received. If yes, the access device determines that the distance from the communication device to the access device reaches a preset access distance, and allows the communication device to access the network. The first response information is saved in the first control module, and the network access parameter is sent to the distance response module by the distance control module, that is, at this time, the second wireless communication module obtains the first wireless communication module.
  • Allowing access to the network; the distance response module receives the network access parameter and transmits it to the second wireless communication module through the second control module; the second wireless communication module transmits the network access parameter to the first wireless communication
  • the first wireless communication module receives the network access parameter, and establishes a network signal connection between the first wireless communication module and the second wireless communication module by using the network access parameter and the wireless communication protocol. In this way, the communication device can access the wireless network through the access device, thereby realizing instant communication.
  • the distance response module further determines whether the distance feature signal is received before returning the first response message; and if the distance response module receives the distance feature signal, returns a first response message to the distance control module, if the distance response module If the distance characteristic signal is not received, it continues to wait for the receiving distance characteristic signal, and does not return the response information to the distance control. Module.
  • the first response information is specifically identity information of the communication device, such as an ID number.
  • the first control module before the network access parameter is sent by the first control module, the first control module further determines whether the first response information is legal. If it is legal, the network access parameter is sent to the distance in the communication device. Response module. If the first control module determines that the received first response information is invalid, the first control module does not send the network access parameter to the communication device. Then, at this time, the communication device cannot establish a network connection with the access device because it does not receive the returned network access parameter, so that the communication device cannot access the network.
  • the distance control module can specifically determine whether the received first response information is legal as follows:
  • the distance control module When transmitting the distance characteristic signal, the random number A is also sent in the distance characteristic signal; meanwhile, using the random number A, after a certain algorithm, in the distance control module A new number B1 is generated and enters a state of waiting to receive the first response message; after the distance response module receives the random number A carried in the distance characteristic signal, a new number is generated by the same algorithm as the distance control module. B2, and the number B2 is sent to the distance control module in the first response message; the distance control module compares the B2 in the received first response message with the B1 generated by itself to determine whether they are equal, if B1 and B2 If they are equal, it is determined that the first response information is legal. If B2 and B1 are not equal, it is determined that the information should be illegal. It should be noted that the above method can be used to determine whether the first response information is legal, but the method of determining the validity of the first response information is not limited to the above method.
  • the distance characteristic signal sent by the distance control module can also have many options, such as selecting a sound signal, an optical signal, or an electromagnetic wave signal.
  • the distance characteristic signal is not received.
  • the network signal between the first wireless communication module and the second communication module may be more than four types, such as a 2.4 GHz WIFI network, or other frequency. Magnetic wave signal.
  • the distance control module issues a distance feature signal in the form of a broadcast within a preset access distance.
  • the distance control module sends the distance characteristic signal in more than four ways.
  • the active polling method can be adopted, that is, the distance control module continuously transmits the distance characteristic signal.
  • the distance control module can also use the method of transmitting the distance characteristic signal after being triggered, that is, after the distance control module receives the trigger signal of the communication device, the distance characteristic signal is sent again, and whether the response information is received by itself is detected.
  • the manner in which the distance control module is triggered to send the distance characteristic signal may be: the distance response module sends a request access signal to the distance control module; and after receiving the request access signal, the distance control module broadcasts Send distance feature signal.
  • the distance control module can also detect the distance from the communication device to the access device.
  • the specific manner is as follows: The distance control module in the access device periodically issues a command message requesting all communication devices in the network to return. A second response message, where the second response information is specifically identity information of the communication device itself, such as an ID number.
  • the distance control module receives the second response information and sends the second response information to the first control module, and the first control module compares the second response information with the first response information of the communication device previously stored in the first control module, and determines whether the consistency is consistent; , keep the network connection with the communication device, if not, disconnect the network connection with the communication device.
  • the purpose of detecting the distance from the communication device to the access device is to ensure that when the user is not in a specific area, the communication device can automatically disconnect the network, which not only brings convenience to the user, but also It also reduces unnecessary waste of network resources.
  • the network signal connecting the first wireless communication module and the second wireless communication module is a WIFI network signal as an embodiment, and the instant communication system performs the process of instant communication in detail.
  • the communication device is set.
  • the second wireless communication module in the standby is called a WIFI module
  • a wireless router is specifically used to implement the function of the first wireless communication module. Therefore, as shown in FIG. 2, the access device includes a distance control module, a wireless router, and a first control module; and the communication device includes a distance response module, a WI FI module, and a second control control module.
  • the first control module in the access device is used for controlling, coordinating the signal transmission and reception of the distance control module and the wireless router, and the wireless router is connected to the Ethernet through the network cable; the second control module in the communication device is used for controlling and coordinating the distance.
  • the distance control module and the distance response module are connected by a distance characteristic signal, and are specifically used to control a preset access distance of the communication device to the access device when the communication device accesses the network.
  • the WIF I module is connected to the wireless router via a 2. 4 GHz WIF I network signal, which is responsible for accessing the communication device network and communicating instantly.
  • the distance control module sends a distance characteristic signal, and the preset access distance sent by the distance control module is controlled within a certain range, such as 10 meters, 30 meters, 50 meters, and the like.
  • the distance response module receives the distance characteristic signal, and if received, returns the first response information to the distance control module.
  • the distance control module receives the first response information returned by the distance response module and transmits the first response information to the first control module.
  • the first control module determines whether the first response information is legal. If it is legal, the distance control module sends the network access. The parameters are given to the distance response module.
  • the distance response module receives the delivered network access parameters and transmits them to the WIFI module through the second control module.
  • the WIF I module receives the network access parameters and sends them to the wireless router.
  • the wireless router receives the network parameter and establishes a network signal connection between the first wireless communication module and the second wireless communication module according to the wireless communication protocol.
  • the communication device implements the network connection between the wireless router and the WIFI module according to the access protocol of the WIFI network signal, so that the communication device successfully accesses the network, thereby realizing instant communication with other communication devices in the network.
  • instant messaging such as IM, QQ. MSN, Feiqiu, voice intercom, data interaction, etc.
  • the present invention also provides an instant communication method, which can enable the communication device to access the network within a specific area, and specifically includes the following steps:
  • the access device determines whether the distance from the communication device to the access device reaches a preset access distance, and if so, allows the communication device to access the network through the access device, thereby implementing the communication device and other devices in the network.
  • Instant communication between communication devices
  • the instant messaging method includes the following steps:
  • the distance control module sends a distance characteristic signal in the form of a broadcast, and the distance response module receives the distance characteristic signal;
  • Determining whether the distance response module detects whether the distance characteristic signal is received If received, the distance response module returns the first response information to the distance control module; if not received, the distance response module continues to wait for the receiving distance characteristic signal;
  • the distance control module detects whether the first response information of the distance response module is received, and if yes, sends the network access parameter to the communication device through the distance control module; if not, the distance control module sends the distance characteristic signal in the form of a broadcast.
  • the distance response module receives the distance characteristic signal;
  • the communication device performs network access according to the received network access parameter;
  • the network control parameter is sent to the communication device by the distance control module to add a step:
  • the first control module further determines whether the first response information received by the distance control module is legal. If it is legal, the network access parameter is sent to the communication device by the distance control module; otherwise, the distance control module sends the distance feature in a broadcast manner.
  • the signal, distance response module receives the distance characteristic signal.
  • the distance control module actively polls the transmission distance characteristic signal.
  • the distance response module may also first issue a request access signal, and the distance control module receives the request. After the signal (trigger signal) is sent, the distance characteristic signal is sent. As shown in FIG. 4, the main steps are as follows:
  • the distance response module sends a request access signal, and the distance control module receives the request access signal;
  • the distance control module sends a distance characteristic signal in the form of a broadcast
  • the distance control module checks whether the first response message is received. If yes, the distance control module sends the network access parameter to the communication device. If not, the distance control module sends the distance feature signal in the form of a broadcast, and the distance response module receives the distance. Characteristic signal
  • the communication device performs network access according to the received network access parameter
  • the distance control module also detects the distance from the communication device to the access device.
  • the specific process is as follows:
  • the distance control module sends command information
  • the distance response module in the communication device returns a second response message
  • the second control module determines whether the second response information received by the distance control module is consistent with the first response information of the communication device saved by itself; if it is consistent, the network connection with the communication device is maintained;
  • the present invention further provides an access device, where the access device includes a distance control module and a control module, where the distance control module is configured to send a distance feature signal within a preset access distance and receive response information returned by the communication device.
  • the control module is configured to determine whether the distance from the communication device to the access device reaches a preset access distance; if the distance control module receives the response information, the control module determines that the preset access distance is reached, allows the communication device to access the network, and The response information is saved in the control module; at the same time, the control module sends the network access parameter to the distance response module through the distance control module.
  • the access device can determine whether the distance of the communication device connected to the network reaches the preset access distance, and expands the function of the existing access device.
  • the communication device of the present invention comprises a distance response module and a wireless communication module, wherein the distance response module is configured to receive a distance characteristic signal sent by the access device and return response information within a preset access distance, and receive the access.
  • the device determines the network access parameter that is sent after the response information is legal, and the wireless communication module is configured to access the network by using the access device according to the network access parameter.
  • the communication device can receive network access parameters within a preset access distance range, and expands the functions of the existing communication device.
  • the distance from the communication device accessing the network to the access device can be precisely controlled. So that the user only needs to access the preset access distance of the network.
  • the communication device can be connected to the network without password verification, which greatly facilitates the process when the user accesses the wireless network, which is convenient for the user to use. For users who exceed the preset access distance, even if there is wireless network coverage, they cannot access the network, thus preventing illegal users from accessing the network.
  • the invention is particularly applicable to companies, cafes, bars and the like.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本发明公开了一种即时通信系统、接入设备、通讯设备及通讯设备接入网络的方法，所述系统包括：接入设备和至少一个通讯设备；所述接入设备用于判断所述通讯设备到所述接入设备的距离是否达到接入网络时的预设接入距离，若达到，则所述通讯设备通过所述接入设备接入网络以实现所述通讯设备与网络内的其它通讯设备之间的即时通信。应用本发明，使得用户在使用通讯设备接入网络时，只要在允许接入网络的预设接入距离范围内，用户不需要进行密码验证，就可以接入网络，从而进行即时通信，进而大大简化了通讯设备接入网络时的流程，给用户带来了便捷。

Description

一种即时通信系统、接入设备、通讯设备及通讯设备接入网络的方法
技术领域
本发明涉及通信领域， 具体而言， 尤其涉及一种即时通信系统、 接入设备及通讯设备及通讯设备接入网络的方法。
背景技术
说
通信领域的发展， 方便了人们的沟通与交流。 而随着通信技术的 不断进步， 也使人们沟通与交流形式的越来越多样化。 然而， 随着工
书
作及生活的需求， 人们已经不再希望只有坐在家里才能进行即时通 信， 而是希望如果有即时通信工具， 只要走进某一个场所就能自动接 入这个场所的网络， 从而进行即时通信， 而走出这个特定场所后又能 自动断开网络连接， 这对用户来说将是非常的方便。
目前， 在一些特定场所， 如一些高校， 企业， 只要在其设定的无 线网络的覆盖范围内，通讯设备就可以接入无线网络从而实现即时通 信。 然而， 在现有的即时通信系统中， 基本上都不能做到对无线网络 的覆盖范围的距离的精确控制， 如 WIFI连接方式， 其网络覆盖的范 围在几十米至几百米， 范围^艮不可控。 虽然 WIFI 已经在一些特定区 域如校园、企业等内部进行使用，但在使用的过程中都要设定接入无 线网络时的密码， 目的是防止区域以外的终端接入进来。如此则使得 区域以内的用户终端在使用时都需要进行密码验证，这就给区域以内 的用户终端带来了不便， 使用时显得非常复杂。 究其原因， 就是因为 WIFI做不到距离的精确控制。
因此， 对于现有的即时通信系统， 还存在一些缺陷， 亟待改进。 发明内容
本发明的要解决的技术问题是针对现有技术的不足，提供一种在 特定区域内，用户能够方便地接入网络从而进行即时通信的即时通信 系统、 接入设备及通讯设备。
为解决上述技术问题， 本发明采用了以下技术方案：
一种即时通信系统， 包括： 接入设备和至少一个通讯设备； 所述 接入设备用于判断所述通讯设备到所述接入设备的距离是否达到接 入网络时的预设接入距离， 若达到， 则所述通讯设备通过所述接入设 时通信。
进一步， 所述接入设备包括距离控制模块， 第一无线通信模块以 及用于协调、控制所述距离控制模块和第一无线通信模块的工作的第 一控制模块； 所述通讯设备包括距离响应模块， 第二无线通信模块以 及用于协调、控制所述距离响应模块和第二无线通信模块的工作的第 二控制模块；
所述距离控制模块与距离响应模块通过距离特征信号连接，用于 控制所述通讯设备接入网络时，所述通讯设备到所述接入设备的预设 接入巨离；
所述第一无线通信模块与第二无线通信模块通过网络信号连接， 用于使所述通讯设备通过所述接入设备接入网络；
当所述接入设备判断所述通讯设备到所述接入设备的距离达到 接入网络时的预设接入距离时，则所述第一无线通信模块与第二无线 通信模块建立连接， 使所述通讯设备通过所述接入设备接入网络， 以 实现所述通讯设备与网络内的其它通讯设备之间的即时通信。
本发明还提供了一种接入设备， 包括距离控制模块和控制模块， 所述距离控制模块用于在预设接入距离内发送距离特征信号以及接 收通讯设备返回的应答信息，所述控制模块用于判断所述通讯设备到 所述接入设备的距离是否达到预设接入距离；若所述距离控制模块接 收到所述应答信息， 则所述控制模块判断达到预设接入距离， 允许所 述通讯设备接入网络， 并将所述应答信息保存在所述控制模块中； 同 时所述控制模块通过距离控制模块下发网络接入参数给所述距离响 应模块。
本发明还提供了一种通讯设备，包括距离响应模块和无线通信模 块，所述距离响应模块用于在预设接入距离内接收接入设备发出的距 离特征信号并返回应答信息，以及接收接入设备判断所述应答信息合 法后下发的网络接入参数，所述无线通信模块用于根据所述网络接入 参数， 通过所述接入设备接入网络。
本发明的另一个目的在于， 提供一种在特定区域内， 用户能够方 便地接入网络从而进行即时通信的通讯设备接入网络的方法。
一种通讯设备接入网络的方法，所述方法具体为一种接入设备允 许通讯设备接入网络的方法， 具体步骤为：
所述距离控制模块在预设接入距离内以广播形式发出距离特征 信号；
所述距离响应模块接收所述距离特征信号并返回第一应答信息 给所述距离控制模块；
所述距离控制模块接收所述第一应答信息，所述接入设备判断所 述通讯设备到所述接入设备的距离达到预设接入距离，并将所述第一 应答信息保存在所述第一控制模块中； 同时所述第一控制模块通过距 离控制模块下发网络接入参数给所述距离响应模块；
所述距离响应模块将接收到的所述网络接入参数依次通过第二 控制模块、 第二无线通信模块发送给第一无线通信模块；
所述第一无线通信模块根据接收到的所述网络接入参数建立第 一无线通信模块与第二无线通信模块之间的网络信号连接。
进一步，所述距离响应模块接收所述距离特征信号并返回第一应 答信息给所述距离控制模块中， 在返回应答信息之前， 还判断距离响 应模块是否接收到所述距离特征信号，若是，则返回应答信息，若否， 则继续等待。
进一步， 所述所述距离控制模块接收所述第一应答信息， 所述接 入设备判断所述通讯设备到所述接入设备的距离达到预设接入距离， 并将所述第一应答信息保存在所述第一控制模块中； 同时所述第一控 制模块通过距离控制模块下发网络接入参数给所述距离响应模块中， 下发网络接入参数之前，所述第一控制模块还判断所述第一应答信息 是否合法，若合法，则下发网络接入参数给距离响应模块，若不合法， 则返回执行距离控制模块在预设接入距离内以广播形式发出距离特 征信号。
进一步， 所述距离控制模块发送距离特征信号的方式为主动轮 询， 或者受触发后发送。
进一步，所述距离控制模块受触发后发送距离特征信号的方式具 体为：
所述距离响应模块向所述距离控制模块发送一个请求接入信号； 所述距离控制模块收到所述请求接入信号后，以广播形式发送距 离特征信号。
进一步， 在进行即时通信的过程中， 所述距离控制模块还对所述 通讯设备到接入设备的距离进行检测：所述距离控制模块定时发出命 令信息要求所述通讯设备返回第二应答信息；所述第一控制模块通过 距离控制模块接收所述第二应答信息并与存储在自身的第一应答信 息进行比较， 若一致， 则保持与通讯设备的网络连接， 若不一致， 则 断开与通讯设备的网络连接。 进一步， 所述距离特征信号为声音信号， 或者光信号， 或者电磁 波信号。
由于采用了以上技术方案， 使本发明具备的有益效果在于： 通过 接入设备来判断通讯设备到接入设备的距离是否达到接入网络时的 预设接入距离，并允许达到预设接入距离的通讯设备通过接入设备接 入网络， 从而实现该通讯设备与网络内的其它通讯之间的即时通信。 如此，使得用户在使用通讯设备接入网络时， 只要在接入设备允许接 入网络的预设接入距离范围内， 用户不需要进行密码验证， 就可以接 入网络，从而进行即时通信， 进而大大筒化了通讯设备接入网络时的 流程， 给用户带来了便捷。
并且，在进行即时通信的过程中，通过距离控制模块对通讯设备 到接入设备的距离的进行检测，使得当通讯设备到接入设备的距离超 出预设接入距离之外时， 会自动断开网络， 从而减少了不必要的资源 浪费。 附图说明
图 1为本发明一个实施例所述的系统架构图；
图 2为本发明另一个实施例所述的模块示意图；
图 3 为本发明一个实施例所述的通讯设备接入网络的方法流程 图；
图 4 是本发明另一个实施例所述的通讯设备接入网络的方法流 程图；
图 5 是本发明一个实施例中距离控制模块进行距离检测的流程 图。 具体实施方式 下面通过具体实施方式结合附图对本发明作进一步详细说明。 本发明涉及即时通信系统，由于现有技术中的即时通信系统几乎 不能够对无线网络覆盖的距离进行精确控制，导致特定区域以外也会 有无线网络的覆盖区域，从而使得特定区域以外的用户也可以接入网 络。 为规避特定区域以外的用户 （非法用户）接入网络的情况， 特定 区域以内的用户（合法用户）在使用通讯设备接入网络时通常需要进 行密码验证， 这使得接入网络的流程复杂化。 为此， 需要对接入网络 的通讯设备到接入设备的距离进行精确的控制，通过对通讯设备到接 入设备的距离的精确控制，使得用户在允许接入网络的预设接入距离 内时， 不需要进行密码验证也能够将通讯设备接入网络， 从而给用户 带来了便捷。
为解决现有技术中的技术问题，本发明提出了一种能够对待接入 网络的通讯设备到接入设备的距离进行精确控制的即时通信系统。其 主要构思是： 该种即时通信系统包括接入设备和至少一个通讯设备； 通过接入设备来判断通讯设备到接入设备的距离是否达到接入网络 时的预设接入距离， 若达到， 则允许该通讯设备通过接入设备接入网 络， 从而实现所述通讯设备与网络内的其它通讯设备之间的即时通 信。
由于通讯设备接入无线网络时，即时通信系统内的接入设备会判 断该通讯设备到接入设备的距离是否达到接入网络时的预设接入距 离， 并允许达到预设接入距离的通讯设备直接接入网络， 无需密码验 证， 从而筒化了接入流程， 方便了用户的使用。
接入设备可以判断通讯设备到接入设备的距离是否达到接入网 络时的预设接入距离。 具体地讲， 如图 1所示， 接入设备包括距离控 制模块， 第一无线通信模块以及用于协调、控制距离控制模块和第一 无线通信模块的工作的第一控制模块； 通讯设备包括距离响应模块， 第二无线通信模块以及用于协调、控制所述距离响应模块和第二无线 通信模块的工作的第二控制模块；距离控制模块与距离响应模块通过 距离特征信号连接， 用于控制通讯设备接入网络时， 通讯设备到接入 设备的预设接入距离；第一无线通信模块与第二无线通信模块通过网 络信号连接， 用于使通讯设备通过接入设备接入网络；
当接入设备判断该通讯设备到接入设备的距离达到接入网络时 的预设接入距离时， 接入设备与通讯设备则可以根据无线通信协议， 使第一无线通信模块与第二无线通信模块通过网络信号建立连接，从 而使得通讯设备通过接入设备接入无线网络，既而实现通讯设备与网 络内的其它通讯设备之间的即时通信。而对于接入设备判该通讯设备 到接入设备的距离没有达到接入网络时的预设接入距离时，则不允许 通讯设备接入网络，此时第一无线通信模块通信与第二无线通信模块 则不能连通， 因此， 通讯设备不能实现即时通信。 第一无线通信模块 通信与第二无线通信模块没有连通的原因主要是因为第二无线通信 模块没有获得第一无线通信模块的授权。
实际上，预设接入距离是允许通讯设备接入网络时通讯设备到接 入设备的最大距离，只要通讯设备到接入设备的距离在预设接入的最 大距离之内， 通讯设备都可接入网络。 在此， 将预设接入距离确定的 这个范围称为特定区域。而对于通讯设备到接入设备的距离没有达到 接入网络时的预设接入距离的通讯设备， 则不予接入网络， 即使特定 区域以外有无线网络的覆盖，但是通讯设备却因为超出预设接入距离 而无法接入网络，如此防止了特定区域以外的用户终端接入网络的情 况。 其中， 在特定区域内进行即时通信的通讯设备的类型有很多， 如 手机， 笔记本电脑， 或者平板电脑等。
实际应用中，其预设接入距离为人为设定的允许通讯设备接入无 线网络时， 通讯设备到接入设备的最大距离， 具体根据特定区域的实 际大小以及实际需求来设定， 如 10米， 30米， 50米等。 也就是说， 该预设接入距离是一个精确的距离值， 距离控制模块 /距离响应模块 用于设定、控制这个精确的预设接入距离， 从而精确地判断通讯设备 是否在允许接入网络的特定区域内。
在一个实施例中， 一种通讯设备接入网络的方法， 即接入设备具 体按照如下方式允许通讯设备接入网络， 具体步骤如下：
接入设备内的距离控制模块在预设接入距离内以广播形式发送 距离特征信号；距离特征信号中携带的距离特征信息控制的是允许通 讯设备接入网络时， 通讯设备到接入设备的最大距离， 也就是前面所 说的预设接入距离。通讯设备内的距离响应模块则接收距离特征信号 并返回第一应答信息。
距离控制模块会检测是否接收到距离响应模块返回的第一应答 信息， 若是， 则接入设备判断通讯设备到接入设备的距离达到预设接 入距离， 允许所述通讯设备接入网络， 将该第一应答信息保存在第一 控制模块中， 并通过距离控制模块下发网络接入参数给距离响应模 块， 也就是说， 此时， 第二无线通信模块获得了第一无线通信模块授 予的允许接入网络的权限； 距离响应模块接收该网络接入参数， 并通 过第二控制模块将其传送给第二无线通信模块；第二无线通信模块将 该网络接入参数发送给第一无线通信模块；第一无线通信模块接收该 网络接入参数， 并利用该网络接入参数以及无线通信协议， 建立第一 无线通信模块与第二无线通信模块之间的网络信号连接。 如此， 该通 讯设备就可以通过接入设备接入无线网络， 从而实现即时通信。
在实施例中， 距离响应模块在返回第一应答信息之前， 还判断是 否接收到距离特征信号； 若距离响应模块接收到距离特征信号， 则向 距离控制模块返回第一应答信息，若距离响应模块没有接收到距离特 征信号， 则继续等待接收距离特征信号， 不返回应答信息给距离控制 模块。 需要说明的是， 该第一应答信息具体为通讯设备的身份信息， 如 ID号等。
同样地， 在实施例中， 第一控制模块下发在网络接入参数之前， 第一控制模块还判断第一应答信息是否合法， 若合法， 则下发网络接 入参数给通讯设备内的距离响应模块。若第一控制模块判断接收到的 第一应答信息不合法，则第一控制模块不会下发网络接入参数给通讯 设备。 那么此时， 通讯设备由于没有接收到返回的网络接入参数， 而 无法与接入设备建立网络连接， 从而使得通讯设备不能接入网络。
距离控制模块具体可以通过如下方式判断接收到的第一应答信 息是否合法：
首先距离控制模块产生一个随机数 A, 在发送距离特征信号的时 候， 也将该随机数 A放在距离特征信号里发送出去； 同时， 利用随机 数 A，经过某种特定算法，在距离控制模块中产生一个新的数 B1 ,并进 入等待接收第一应答信息的状态；距离响应模块接收到距离特征信号 里面携带的这个随机数 A以后， 通过与距离控制模块相同的算法， 产 生一个新的数 B2 , 并将数 B2放在第一应答信息里面将其发送给距离 控制模块； 距离控制模块将接收到的第一应答信息里的 B2与自身产 生的 B1比较， 判断是否相等， 若 B1与 B2相等， 则判定第一应答信 息是合法的， 若 B2与 B1不等， 则判定应该信息是不合法的。 需要说 明的是， 可以采用上述方法判断第一应答信息是否合法，但是判断第 一应答信息合法的方法并不限于上述这种方法。
实际运用中，距离控制模块发出的距离特征信号也可以有很多选 择， 如选用声音信号， 光信号， 或者电磁波信号。 当通讯设备到接入 设备的距离在该预设接入距离允许的范围之外时，则接收不到该距离 特征信号。 同样地， 连接第一无线通信模块与第二通信模块之间的网 络信号也可以有 4艮多种， 如 2. 4GHz的 WIFI网络， 或者其它频率的电 磁波信号。
距离控制模块在预设接入距离内以广播的形式发出距离特征信 号。在实际运用时，距离控制模块发送距离特征信号的方式有 4艮多种， 如可以采取主动轮询的方式，即距离控制模块不间断地发送距离特征 信号。 当然，距离控制模块还可以采用受触发以后再发送距离特征信 号的方式， 即距离控制模块收到通讯设备的触发信号以后， 再发出距 离特征信号， 并检测自身是否接收到应答信息。 在实施例中， 距离控 制模块受触发后发送距离特征信号的方式具体可以为：距离响应模块 向距离控制模块发送一个请求接入信号；距离控制模块收到该请求接 入信号后， 以广播形式发送距离特征信号。
为了进一步方便用户的使用，距离控制模块还可对通讯设备到接 入设备的距离进行检测， 具体方式为： 接入设备内的距离控制模块定 时发出一个命令信息，要求网络内的所有通讯设备返回一个第二应答 信息， 该第二应答信息具体为通讯设备自身的身份信息， 如 ID号等。 距离控制模块接收该第二应答信息并发送给第一控制模块，第一控制 模块将该第二应答信息与之前保存在自身的该通讯设备的第一应答 信息进行比较， 判断是否一致； 若一致， 则保持与通讯设备的网络连 接，若不一致，则断开与通讯设备的网络连接。在即时通信的过程中， 对通讯设备到接入设备的距离进行检测的目的主要能够保证当用户 不在特定区域之内时， 能够使通讯设备自动断开网络， 不但给用户带 来了便捷， 而且还减少了不必要的网络资源的浪费。
实施例 1 :
下面，以连接第一无线通信模块与第二无线通信模块的网路信号 为 WIFI 网络信号为实施例， 详细讲解该种即时通信系统进行即时通 信的过程。
由于网络信号为 WIFI 网络信号， 因此， 在实施例中， 将通讯设 备内的第二无线通信模块称作 WIFI模块， 并且在接入设备内， 具体 采用了无线路由器来实现第一无线通信模块的功能。 因此， 如图 2所 示， 接入设备包括距离控制模块、 无线路由器、 第一控制模块； 通讯 设备则包括距离响应模块、 WI FI模块以及第二控制控制模块。 其中， 接入设备中的第一控制模块用于控制，协调距离控制模块和无线路由 器的信号的收发， 无线路由器通过网线与以太网连接； 通讯设备中的 第二控制模块用于控制、 协调距离响应模块和 WIFI模块的信号的收 发。距离控制模块与距离响应模块通过距离特征信号相连， 专门用来 控制通讯设备接入网路时， 通讯设备到接入设备的预设接入距离。
WIF I模块与无线路由器通过 2. 4GHz的 WIF I 网络信号相连， 负责通 讯设备网络的接入并进行即时通信。
首先， 距离控制模块发送距离特征信号， 其发送的预设接入距离 控制在一定的范围内， 如 10米、 30米、 50米等。
其次， 判断距离响应模块是否收到距离特征信号， 若收到， 则返 回第一应答信息给距离控制模块。
再次，距离控制模块会接收距离响应模块返回的第一应答信息并 传送至第一控制模块， 第一控制模块会判断第一应答信息是否合法， 若合法， 则通过距离控制模块下发网络接入参数给距离响应模块。
再次，距离响应模块接收下发的网络接入参数并通过第二控制模 块传送至 WIFI模块， WIF I模块接收该网络接入参数并将其发送给无 线路由器。
最后， 无线路由器接收该网络参数， 并根据无线通信协议， 建立 第一无线通信模块与第二无线通信模块之间的网络信号连接。
如此， 通讯设备根据 WIFI 网络信号的接入协议实现无线路由器 与 WIFI模块的网络连接， 使得通讯设备成功地接入网络， 从而实现 与网络内的其他通讯设备的即时通信。 需要说明的是， 即时通信的类型有^艮多， 如 IM，QQ. MSN, 飞秋， 语音对讲， 数据交互等
特定区域内的通讯设备至少为一个，也可以为多个。如图 2所示， 特定区域内有连个通讯设备。设备 2和设备 3都可以采用上述所描述 的方式接入该特定区域内的无线网络， 如此， 不但可以实现设备 2与 设备 3之间的即时通信， 而且也可以实现设备 2/设备 3与该特定区 域之外的网络内的其他通讯设备之间的即时通信。
同时， 本发明还提供了一种即时通信方法， 采用该种通信方法， 可以使得通讯设备在特定区域的范围内接入网络， 具体包括以下步 骤：
接入设备判断通讯设备到接入设备的距离是否达到预设接入距 离， 若达到， 则允许所述通讯设备通过所述接入设备接入网络， 从而 实现所述通讯设备与网络内的其它通讯设备之间的即时通信；
实施例 2 :
下面， 如图 3所示， 以具体的实施例， 详细讲解该种通讯设备到 接入设备的距离精确可控的即时通信方法。
该种即时通信方法， 包括以下步骤：
距离控制模块以广播的形式发出距离特征信号，距离响应模块接 收距离特征信号；
判断距离响应模块检测是否接收到距离特征信号， 若收到， 则距 离响应模块返回第一应答信息给距离控制模块； 若没有收到， 则距离 响应模块继续等待接收距离特征信号；
距离控制模块检测是否收到距离响应模块的第一应答信息， 若 是， 则通过距离控制模块下发网络接入参数给通讯设备； 若否， 则转 到距离控制模块以广播的形式发出距离特征信号，距离响应模块接收 距离特征信号； 通讯设备根据接收到的网络接入参数进行网络接入；
通讯设备之间进行即时通信。
为了增强安全性，在距离控制模块检测是否收到距离响应模块的 第一应答信息，则通过距离控制模块下发网络接入参数给通讯设备还 可增加一个步骤：
第一控制模块还判断距离控制模块接收到的第一应答信息是否 合法， 若合法， 则通过距离控制模块下发网络接入参数给通讯设备； 否则转到距离控制模块以广播的形式发出距离特征信号，距离响应模 块接收距离特征信号。
实际上，上述实施例中详细描述的是距离控制模块主动轮询发送 距离特征信号的情况， 实际使用中， 也可以采用距离响应模块先发出 一个请求接入信号， 距离控制模块收到该请求接入信号 （触发信号） 后再发送距离特征信号， 如图 4所示， 其主要步骤为：
距离响应模块发出一个请求接入信号，距离控制模块接收该请求 接入信号；
距离控制模块以广播的形式发出距离特征信号；
判断距离响应模块检测是否收到该距离特征信号， 若收到， 则距 离响应模块返回第一应答信息给距离控制模块；； 若没有收到， 则距 离响应模块继续等待接收该距离特征信号；
距离控制模块检是否收到第一应答信息， 若是， 则通过距离控制 模块下发网络接入参数给通讯设备，若否， 则距离控制模块以广播的 形式发出距离特征信号， 距离响应模块接收距离特征信号；
通过距离控制模块下发网络接入参数给通讯设备；
通讯设备根据接收到的网络接入参数进行网络接入；
通讯设备之间进行即时通信。
为了进一步方便用户的使用， 如图 5，在进行即时通信的过程中， 距离控制模块还对通讯设备到接入设备的距离进行检测，具体流程如 下：
距离控制模块发送命令信息；
通讯设备内的距离响应模块返回第二应答信息；
第二控制模块判断距离控制模块收到的第二应答信息是否与之 前自身保存的该通讯设备的第一应答信息是否一致； 若一致， 则保持 与通讯设备的网络连接；
若不一致， 则断开通讯设备的网络连接。
同时， 本发明还提供了一种接入设备， 该接入设备包括距离控制 模块和控制模块，距离控制模块用于在预设接入距离内发送距离特征 信号以及接收通讯设备返回的应答信息，控制模块用于判断通讯设备 到接入设备的距离是否达到预设接入距离；若距离控制模块接收到应 答信息，则控制模块判断达到预设接入距离，允许通讯设备接入网络， 并将应答信息保存在控制模块中； 同时控制模块通过距离控制模块下 发网络接入参数给距离响应模块。
该种接入设备，可以对待接入网络的通讯设备到自身的距离是否 达到预设接入距离进行判断， 扩展了现有接入设备的功能。
最后，本发明一种通讯设备，包括距离响应模块和无线通信模块， 所述距离响应模块用于在预设接入距离内接收接入设备发出的距离 特征信号并返回应答信息，以及接收接入设备判断所述应答信息合法 后下发的网络接入参数，所述无线通信模块用于根据所述网络接入参 数， 通过所述接入设备接入网络。
该种通讯设备， 可以在预设接入距离范围内接收网络接入参数， 扩展了现有通讯设备的功能。
应用本发明，可以对待接入网络的通讯设备到接入设备的距离进 行精确的控制。从而使得用户只要在允许接入网络的预设接入距离的 无线网络覆盖区域内， 无须进行密码验证， 就可以将通讯设备接入网 络， 大大地方便了用户接入无线网络时的流程， 方便了用户的使用。 而对于超出预设接入距离的用户， 即使有无线网络覆盖， 也不能接入 网络， 从而防止了非法用户接入网络。 本发明尤其适用于公司、 咖啡 厅、 酒吧等类似的场所。
以上内容是结合具体的实施方式对本发明所作的进一步详细说 明， 不能认定本发明的具体实施只局限于这些说明。 对于本发明所属 技术领域的普通技术人员来说， 在不脱离本发明构思的前提下，还可 以做出若干筒单推演或替换， 都应当视为属于本发明的保护范围。

Claims

1、 一种即时通信系统， 其特征在于， 所述通信系统包括： 接入 设备和至少一个通讯设备；所述接入设备用于判断所述通讯设备到所 述接入设备的距离是否达到接入网络时的预设接入距离， 若达到， 所 述通讯设备通过所述接入设备接入网络以实现所述通讯设备与网络 内的其它通讯设备之间的即时通信。
2、 如权利要求 1所述的即时通信系统， 其特征在于， 所述接入 设备包括距离控制模块， 第一无线通信模块以及用于协调、控制所述 距离控制模块和第一无线通信模块的工作的第一控制模块；所述通讯 设备包括距离响应模块， 第二无线通信模块以及用于协调、控制所述 距离响应模块和第二无线通信模块的工作的第二控制模块；
所述距离控制模块与距离响应模块通过距离特征信号连接，用于 控制所述通讯设备接入网络时，所述通讯设备到所述接入设备的预设 接入巨离；
所述第一无线通信模块与第二无线通信模块通过网络信号连接， 用于使所述通讯设备通过所述接入设备接入网络；
当所述接入设备判断所述通讯设备到所述接入设备的距离达到 接入网络时的预设接入距离时，则所述第一无线通信模块与第二无线 通信模块建立连接， 使所述通讯设备通过所述接入设备接入网络， 以 实现所述通讯设备与网络内的其它通讯设备之间的即时通信。
3、 一种接入设备， 其特征在于， 包括距离控制模块和控制模块， 所述距离控制模块用于在预设接入距离内发送距离特征信号以及接 收通讯设备返回的应答信息，所述控制模块用于判断所述通讯设备到 所述接入设备的距离是否达到预设接入距离；若所述距离控制模块接 收到所述应答信息， 则所述控制模块判断达到预设接入距离， 允许所 述通讯设备接入网络， 并将所述应答信息保存在所述控制模块中； 同 时所述控制模块通过距离控制模块下发网络接入参数给所述距离响 应模块。
4、 一种通讯设备， 其特征在于， 包括距离响应模块和无线通信 模块，所述距离响应模块用于在预设接入距离内接收接入设备发出的 距离特征信号并返回应答信息，以及接收所述接入设备判断所述应答 信息合法后下发的网络接入参数，所述无线通信模块用于根据所述网 络接入参数， 通过所述接入设备接入网络。
5、 一种通讯设备接入网络的方法， 其特征在于， 包括以下步骤： 所述距离控制模块在预设接入距离内以广播形式发出距离特征 信号；
所述距离响应模块接收所述距离特征信号并返回第一应答信息 给所述距离控制模块；
所述距离控制模块接收所述第一应答信息，所述接入设备判断所 述通讯设备到所述接入设备的距离达到预设接入距离，并将所述第一 应答信息保存在所述第一控制模块中； 同时所述第一控制模块通过距 离控制模块下发网络接入参数给所述距离响应模块；
所述距离响应模块将接收到的所述网络接入参数依次通过第二 控制模块、 第二无线通信模块发送给第一无线通信模块；
所述第一无线通信模块根据接收到的所述网络接入参数建立第 一无线通信模块与第二无线通信模块之间的网络信号连接。
6、 如权利要求 5所述的方法， 其特征在于， 所述距离响应模块 接收所述距离特征信号并返回第一应答信息给所述距离控制模块中， 在返回应答信息之前，还判断距离响应模块是否接收到所述距离特征 信号， 若是， 则返回应答信息， 若否， 则继续等待。
7、 如权利要求 5所述的方法， 其特征在于， 所述所述距离控制 模块接收所述第一应答信息，所述接入设备判断所述通讯设备到所述 接入设备的距离达到预设接入距离，并将所述第一应答信息保存在所 述第一控制模块中； 同时所述第一控制模块通过距离控制模块下发网 络接入参数给所述距离响应模块中， 下发网络接入参数之前， 所述第 一控制模块还判断所述第一应答信息是否合法， 若合法， 则下发网络 接入参数给距离响应模块， 若不合法， 则返回执行距离控制模块在预 设接入距离内以广播形式发出距离特征信号。
8、 如权利要求 5所述的方法， 其特征在于， 所述距离控制模块 发送距离特征信号的方式为主动轮询， 或者受触发后发送。
9、 如权利要求 8所述的方法， 其特征在于， 所述距离控制模块 受触发后发送距离特征信号的方式具体为：
所述距离响应模块向所述距离控制模块发送一个请求接入信号； 所述距离控制模块收到所述请求接入信号后，以广播形式发送距 离特征信号。
1 0、 如权利要求 5的所述的方法， 其特征在于， 在进行即时通信 的过程中，所述距离控制模块还对所述通讯设备到接入设备的距离进 行检测：所述距离控制模块定时发出命令信息要求所述通讯设备返回 第二应答信息；所述第一控制模块通过距离控制模块接收所述第二应 答信息并与存储在自身的第一应答信息进行比较， 若一致， 则保持与 通讯设备的网络连接， 若不一致， 则断开与通讯设备的网络连接。
1 1、 如权利要求 5至 1 0任一所述的方法， 其特征在于， 所述距 离特征信号为声音信号， 或者光信号， 或者电磁波信号。
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