CN108377210B - Local area network multi-device identification method - Google Patents
Local area network multi-device identification method Download PDFInfo
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- CN108377210B CN108377210B CN201810059086.3A CN201810059086A CN108377210B CN 108377210 B CN108377210 B CN 108377210B CN 201810059086 A CN201810059086 A CN 201810059086A CN 108377210 B CN108377210 B CN 108377210B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
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Abstract
The invention relates to a local area network multi-device identification method, which adopts a C/S architecture as a system architecture of a local area network, takes a local area network host as a main device, and takes other accessories as a slave device; the slave device actively sends a heartbeat packet to the master device according to the IP and the port of the master device, identifies the type of the master device and reports the plugging state of the slave device; and after receiving the heartbeat packet of the slave equipment in the local area network, the master equipment starts to send the heartbeat packet to the slave equipment, and identifies the type and the plugging state of the slave equipment. The disconnection and connection of the local area network equipment can be quickly detected by adopting the local area network multi-equipment identification method.
Description
Technical Field
The invention relates to the technical field of local area network communication, in particular to a local area network multi-device identification method.
Background
The network-based video conference system has the advantages of low cost, easiness in integration, convenience in deployment and the like, is applied more and more widely, and various video conference systems have more and more accessories, so that a multi-device identification method in a local area network is urgently needed to identify the accessories so as to facilitate the use of the accessories.
Disclosure of Invention
The invention aims to provide a local area network multi-device identification method which can quickly detect disconnection and connection of local area network devices.
In order to realize the technical scheme, the technical scheme adopted by the invention is as follows:
a local area network multi-device identification method is characterized in that: setting a system architecture of a local area network into a C/S architecture, wherein a host of the local area network serves as a main device, and other accessories serve as slave devices; the slave device actively sends a heartbeat packet to the master device according to the IP and the port of the master device, identifies the type of the master device and reports the plugging state of the slave device; and after receiving the heartbeat packet of the slave equipment in the local area network, the master equipment starts to send the heartbeat packet to the slave equipment, and identifies the type and the plugging state of the slave equipment.
When the slave device accesses the local area network, the identification process is specifically as follows:
when no slave device is inserted, the master device is in an idle state; when the slave equipment is accessed, the slave equipment actively sends a heartbeat packet to the master equipment; the master device receives the heartbeat packet of the slave device and sends the type message of the master device to the slave device; the slave equipment receives the heartbeat reply packet of the master equipment and acquires the equipment type of the master equipment;
after receiving the heartbeat packet of the slave equipment, the master equipment actively sends the heartbeat packet to the slave equipment; the method comprises the steps that the slave equipment receives a heartbeat packet of the master equipment and sends the type information of the slave equipment to the master equipment; the method comprises the steps that a master device receives a heartbeat reply packet of a slave device, obtains the device type of the slave device and obtains a connection message of the slave device;
after the master device and the slave device complete mutual identification, the master device circularly sends a heartbeat packet and receives the heartbeat packet and replies to the slave device, and the slave device circularly sends the heartbeat packet and receives the heartbeat packet and replies to the master device.
When the slave device disconnects the local area network, the identification process is specifically as follows:
when the master device and the slave device do not obtain the heartbeat reply packet within the overtime time, the slave device is judged to be removed, the slave device pulling-out message is reported, the master device stops the heartbeat packet circulation thread, the heartbeat packet is not sent to the slave device any more, and the slave device is in an idle state.
The heartbeat reply packet is a data packet which is a udp packet.
After the scheme is adopted, the invention has the following beneficial effects:
first, both the master and the slave have a heartbeat packet detection mechanism, and can quickly detect disconnection and reconnection of equipment in the local area network.
And two-way equipment identification is supported, namely the host can identify the type of the accessory, and the accessory can also identify the type of the host.
Drawings
FIG. 1 is a flow chart of the identification of a slave device when accessing the present invention;
fig. 2 is a flow chart of the identification of the slave device when the slave device is disconnected according to the present invention.
Detailed Description
As shown in fig. 1 and 2, the present invention discloses a method for identifying multiple devices in a local area network, which employs a C/S architecture, where the C/S architecture is a client and server architecture, a host of the local area network is a master device, and other accessories are slave devices, and for a slave device, an IP and a port of the master device are fixed, so that the slave device can actively send a heartbeat packet to the master device, identify a type of the master device, and report a plugging/unplugging state of the slave device. For the master device, after receiving the heartbeat packet of the slave device in the local area network, the master device starts to send the heartbeat packet to the slave device, and identifies the type and the plugging state of the slave device.
When the slave device accesses, the identification process is as follows:
step 1, when no slave equipment is inserted into the master equipment, the master equipment is in an idle state, and the master equipment cannot actively send a heartbeat packet; when the slave equipment is accessed, the slave equipment actively sends a heartbeat packet to the master equipment;
step 2, the master device receives the heartbeat packet of the slave device, sends the type message of the master device according to the identification protocol and returns the type message to the slave device; after receiving the heartbeat reply packet of the master device, the slave device can acquire the device type of the master device;
step 3, after receiving the heartbeat packet of the slave device, the master device realizes that the slave device is inserted, and then the master device can actively send the heartbeat packet to the slave device; the slave equipment receives the heartbeat packet of the master equipment, sends the type message of the slave equipment according to the identification protocol and returns the type message to the master equipment;
step 4, after receiving the heartbeat reply packet of the slave device, the master device can acquire the device type of the slave device and acquire the connection message of the slave device;
step 5, the main device circularly sends heartbeat packets and receives heartbeat packet replies; the slave device loops sending heartbeat packets and receiving heartbeat packet replies.
When removed from the device, the identification process is specifically as follows:
step 1, after the master equipment identifies the slave equipment, sending heartbeat packets to the slave equipment at regular intervals; when the slave device is removed, the heartbeat packet sent to the slave device by the master device cannot be replied;
step 2, when the master device and the slave device do not obtain the reply of the heartbeat packet within the overtime time, the slave device is considered to be removed, the slave device is reported to pull out the message, the circulation thread of the heartbeat packet is stopped, the heartbeat packet is not sent to the slave device any more, and the slave device is in an idle state;
in the identification method, the heartbeat packet reply packets of the master device and the slave device are data packets, and the data packets adopt udp packets, wherein udp is a user datagram protocol. Because the network environment is relatively stable in the local area network, the udp packet is adopted for communication, the transceiving is fast, and the network bandwidth occupation is small. But the unreliability of udp itself adds a detection retransmission mechanism, so as to avoid packet loss and ensure the reliability of data transmission. The principle of the retransmission mechanism is to retransmit a data packet if no response is received to the transmitted data packet within a certain time. The transmitted packets are classified, and some packets need to support a retransmission confirmation mechanism to ensure reliability, for example, to obtain a version number. Some packets do not need to guarantee reliability, such as heartbeat packets, and do not need to support retransmission acknowledgement mechanisms.
The above description is only exemplary of the present invention and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above exemplary embodiments according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (3)
1. A local area network multi-device identification method is characterized in that: setting a system architecture of a local area network into a C/S architecture, wherein a host of the local area network serves as a main device, and other accessories serve as slave devices; the slave device actively sends a heartbeat packet to the master device according to the IP and the port of the master device, identifies the type of the master device and reports the plugging state of the slave device; after receiving a heartbeat packet of a slave device in a local area network, the master device starts to send the heartbeat packet to the slave device, and identifies the type and the plugging state of the slave device;
when the slave device accesses the local area network, the identification process is as follows:
when no slave device is inserted, the master device is in an idle state; when the slave equipment is accessed, the slave equipment actively sends a heartbeat packet to the master equipment; the master device receives the heartbeat packet of the slave device and sends the type message of the master device to the slave device; the slave equipment receives the heartbeat reply packet of the master equipment and acquires the equipment type of the master equipment;
after receiving the heartbeat packet of the slave equipment, the master equipment actively sends the heartbeat packet to the slave equipment; the method comprises the steps that the slave equipment receives a heartbeat packet of the master equipment and sends the type information of the slave equipment to the master equipment; the method comprises the steps that a master device receives a heartbeat reply packet of a slave device, obtains the device type of the slave device and obtains a connection message of the slave device;
after the master device and the slave device complete mutual identification, the master device circularly sends a heartbeat packet and receives the heartbeat packet and replies to the slave device, and the slave device circularly sends the heartbeat packet and receives the heartbeat packet and replies to the master device.
2. The method of claim 1, wherein the method comprises: when the slave device disconnects the local area network, the identification process is specifically as follows:
when the master device and the slave device do not obtain the heartbeat reply packet within the overtime time, the slave device is judged to be removed, the slave device pulling-out message is reported, the master device stops the heartbeat packet circulation thread, the heartbeat packet is not sent to the slave device any more, and the slave device is in an idle state.
3. The local area network multi-device identification method according to claim 1 or 2, characterized in that: the heartbeat reply packet is a data packet which is a udp packet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810059086.3A CN108377210B (en) | 2018-01-22 | 2018-01-22 | Local area network multi-device identification method |
| PCT/CN2018/078200 WO2019140756A1 (en) | 2018-01-22 | 2018-03-07 | Method for identifying multiple devices within local area network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810059086.3A CN108377210B (en) | 2018-01-22 | 2018-01-22 | Local area network multi-device identification method |
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| Publication Number | Publication Date |
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| CN108377210A CN108377210A (en) | 2018-08-07 |
| CN108377210B true CN108377210B (en) | 2020-07-24 |
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| CN201810059086.3A Active CN108377210B (en) | 2018-01-22 | 2018-01-22 | Local area network multi-device identification method |
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| WO (1) | WO2019140756A1 (en) |
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| CN109120881B (en) * | 2018-09-21 | 2020-10-02 | 上海赛连信息科技有限公司 | Multi-party conference control method, system and terminal |
| CN110730116B (en) * | 2019-10-21 | 2021-10-29 | 杭州鸿雁智能科技有限公司 | Operation method of communication equipment in local area network, communication equipment and gateway equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106302692A (en) * | 2016-08-09 | 2017-01-04 | 深圳Tcl新技术有限公司 | The discovery method and apparatus of equipment |
| CN107181628A (en) * | 2017-07-20 | 2017-09-19 | 杭州老板电器股份有限公司 | Two-way wireless communication method, device and terminal |
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| US7620001B2 (en) * | 2004-10-13 | 2009-11-17 | Good Technology, Inc. | Communication system and method with mobile devices |
| JP2013097548A (en) * | 2011-10-31 | 2013-05-20 | Pfu Ltd | Information processing system, information processing device, client terminal, information processing method and program |
| CN105634805B (en) * | 2015-12-31 | 2019-04-16 | 深圳市磊科实业有限公司 | Method of the main control device to the unified configuration of optional equipment under a kind of wireless networking environment |
| CN105871668B (en) * | 2016-03-29 | 2019-10-25 | 海尔优家智能科技（北京）有限公司 | Interconnect method and the intelligent appliance of Internet of Things intelligent appliance |
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- 2018-01-22 CN CN201810059086.3A patent/CN108377210B/en active Active
- 2018-03-07 WO PCT/CN2018/078200 patent/WO2019140756A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106302692A (en) * | 2016-08-09 | 2017-01-04 | 深圳Tcl新技术有限公司 | The discovery method and apparatus of equipment |
| CN107181628A (en) * | 2017-07-20 | 2017-09-19 | 杭州老板电器股份有限公司 | Two-way wireless communication method, device and terminal |
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| WO2019140756A1 (en) | 2019-07-25 |
| CN108377210A (en) | 2018-08-07 |
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