CN111988349A - Network connection establishing method, device and system and display system - Google Patents

Abstract

The embodiment of the invention provides a network connection establishing method, a network connection establishing device, a network connection establishing system and a display system, wherein the network connection establishing method comprises the following steps: sending a broadcast message through a network cable to find whether an available DHCP server exists; analyzing the received response message corresponding to the broadcast message to obtain an available target DHCP server; sending a request message in a broadcasting mode, and requesting a network configuration parameter from the target DHCP server; and establishing point-to-point connection with the target DHCP server based on the network configuration parameters responded by the target DHCP server. The network connection establishing method provided by the embodiment of the invention is suitable for occasions without routers and WIFI networks, and avoids the condition of unstable AP connection.

Description

Network connection establishing method, device and system and display system

Technical Field

The present invention relates to the field of network connection and display control technologies, and in particular, to a network connection establishing method, a network connection establishing apparatus, a network connection establishing system, and a display system.

Background

An embedded operating system of a broadcast control device such as a multimedia player is typically an Android system, which is a full-function intelligent operating system and can support a wired network, a WIFI network and a mobile network in combination with hardware. The broadcast control devices such as the multimedia player and the like are often connected with the PC end through the router in the same local area network, so that the PC end software operates the multimedia player. According to the connection method, the multimedia player is required to support the AP function of WIFI, the AP function of the multimedia player is required to be opened when the connection method is used, and the AP connection can be established only after the PC end is provided with the wireless network card. However, AP connectivity is not stable and this connectivity method is not applicable in certain outdoor situations where there are no routers and WIFI networks.

Disclosure of Invention

Therefore, an embodiment of the present invention provides a network connection establishing method, a network connection establishing apparatus, a network connection establishing system, and a display system, which may be suitable for occasions without a router and a WIFI network, and avoid the situation that an AP connection is unstable.

Specifically, in a first aspect, a method for establishing a network connection provided in an embodiment of the present invention includes: sending a broadcast message through a network cable to find whether an available DHCP server exists; analyzing the received response message corresponding to the broadcast message to obtain an available target DHCP server; sending a request message in a broadcasting mode, and requesting a network configuration parameter from the target DHCP server; and establishing point-to-point connection with the target DHCP server based on the network configuration parameters responded by the target DHCP server.

In an embodiment of the present invention, the source address in the broadcast message is 0.0.0.0 and the destination address is 255.255.255.255.

In an embodiment of the present invention, the step of analyzing the received response packet corresponding to the broadcast packet to obtain an available target DHCP server includes: and only analyzing the received first response message corresponding to the broadcast message.

In an embodiment of the present invention, the request packet includes: and the IP address of the target DHCP server and the IP address provided by the target DHCP server are analyzed from the response message.

In a second aspect, an apparatus for establishing a network connection provided in an embodiment of the present invention includes: the searching module is used for sending a broadcast message through a network cable to search whether an available DHCP server exists; the analysis module is used for analyzing the received response message corresponding to the broadcast message to obtain an available target DHCP server; the request module is used for sending a request message in a broadcasting mode and requesting network configuration parameters to the target DHCP server; and the connection module is used for establishing point-to-point connection with the target DHCP server based on the network configuration parameters responded by the target DHCP server.

In an embodiment of the present invention, the source address in the broadcast message is 0.0.0.0 and the destination address is 255.255.255.255; the request message includes: the IP address of the target DHCP server and the IP address distributed by the target DHCP server are analyzed from the response message; the network configuration parameters include: IP address, subnet mask, gateway, and DNS.

In a third aspect, a method for establishing a network connection provided in an embodiment of the present invention includes: receiving a broadcast message through a network cable; responding the broadcast message to send a response message to respond to available DHCP service; receiving a request message; and analyzing the request message, and sending out network configuration parameters to establish point-to-point connection with the DHCP client when judging that the IP address in the request message is the same as the IP address of the request message.

In a fourth aspect, an apparatus for establishing a network connection according to an embodiment of the present invention includes: the broadcast message receiving module is used for receiving broadcast messages through a network cable; the broadcast message response module is used for responding the broadcast message and sending a response message so as to respond to available DHCP service; a request message receiving module for receiving a request message; and the request message analysis module is used for analyzing the request message and sending out network configuration parameters to establish point-to-point connection with the DHCP client when judging that the IP address in the request message is the same as the IP address of the request message.

In a fifth aspect, the network connection establishment system provided in the embodiment of the present invention includes an upper computer serving as a DHCP server, and a broadcast control device connected to the upper computer through a network cable and serving as a DHCP client; wherein the broadcast control device is configured to perform the network connection establishment method according to any one of the preceding claims.

In a sixth aspect, an embodiment of the present invention provides a display system, including: an LED display screen; the broadcasting control equipment is connected with the LED display screen and comprises a programmable logic device and an embedded processor connected with the programmable logic device, wherein the embedded processor is provided with an embedded operating system; the upper computer is used as a DHCP server side and connected to the broadcast control equipment; wherein the broadcast control device is configured to perform the network connection establishment method according to any one of the preceding claims.

As can be seen from the above, the embodiments of the present invention can achieve one or more of the following advantages: under the environment of realizing a local area network without a router, the network connection between the control equipment and the broadcast control equipment is realized only through a network cable, so that the method can be suitable for application occasions without the router and a WIFI network, and the condition that the connection established through the AP function of the WIFI network is unstable in the prior art is avoided; the defects that the control equipment needs to be provided with the wireless network card and the router are also needed are avoided, the cost is saved, a new connection mode is provided for a user, the user connection scheme is ensured to be more perfect, and the method is suitable for various occasions.

Other aspects and features of the present invention will become apparent from the following detailed description, which proceeds with reference to the accompanying drawings. It is to be understood, however, that the drawings are designed solely for purposes of illustration and not as a definition of the limits of the invention. It should be further understood that the drawings are not necessarily drawn to scale and that, unless otherwise indicated, they are merely intended to conceptually illustrate the structures and procedures described herein.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a flowchart of a network connection establishing method according to a first embodiment of the present invention;

fig. 2 is a schematic diagram illustrating network establishment in a specific implementation of a network connection establishment method according to a first embodiment of the present invention;

fig. 3 is a schematic diagram illustrating establishment of communication in a specific implementation of a network connection establishment method according to a first embodiment of the present invention;

fig. 4 is a block diagram of a network connection establishing apparatus according to a second embodiment of the present invention;

fig. 5 is a flowchart of a network connection establishing method according to a third embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a network connection establishing apparatus according to a fourth embodiment of the present invention;

fig. 7 is a schematic structural diagram of a network connection establishing system according to a fifth embodiment of the present invention;

fig. 8 is a schematic structural diagram of a display system according to a sixth embodiment of the present invention.

[ description of reference ]

S11-S17: establishing a network connection;

30: a network connection establishing device; 31: searching a module; 33: an analysis module; 35: a request module; 37: a connection module;

40: a display system; 41: an LED display screen; 43: a broadcast control device; 45: a control device;

S51-S57: establishing a network connection;

60: a network connection establishing device; 61: a broadcast message receiving module; 62: a broadcast message response module; 63: a request message receiving module; 64: a request message analysis module;

70: a network connection establishing system; 71: a control device; 73: and (4) broadcasting control equipment.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The invention will be described in connection with embodiments with reference to the drawings.

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be noted that the division of the embodiments of the present invention is only for convenience of description and should not be construed as a limitation, and features of various embodiments may be combined and referred to each other without contradiction.

[ first embodiment ] A method for manufacturing a semiconductor device

Referring to fig. 1, a first embodiment of the present invention provides a network connection establishment method. As shown in fig. 1, the network connection establishment method includes, for example, steps S11 to S17.

Step S11: sending a broadcast message through a network cable to find whether an available DHCP server exists;

step S13: analyzing the received response message corresponding to the broadcast message to obtain an available target DHCP server;

step S15: sending a request message in a broadcasting mode, and requesting a network configuration parameter from the target DHCP server; and

step S17: and establishing point-to-point connection with the target DHCP server based on the network configuration parameters responded by the target DHCP server.

The source address in the broadcast message is 0.0.0.0 and the destination address is 255.255.255.255, for example.

Further, step S13 includes, for example: and only analyzing the received first response message corresponding to the broadcast message.

The mentioned request messages include, for example: and the IP address of the target DHCP server and the IP address provided by the target DHCP server are analyzed from the response message. The IP address provided by the target DHCP server is the required IP address.

The mentioned network configuration parameters include, for example: IP address, subnet mask, gateway, and DNS (Domain Name System) information.

The following describes in detail a specific implementation of the network connection establishment method according to the first embodiment of the present invention with reference to fig. 2 and fig. 3.

The setting scenario is as follows: under the environment that no router realizes the local area network, the broadcast control equipment establishes network direct connection with the PC end through a network cable.

As shown in fig. 2, the mentioned broadcast control device is, for example, an asynchronous play box, which includes a network interface and a DHCP (Dynamic Host Configuration Protocol) function module. The broadcast control device serves as a client (DHCP client) in the network connection establishment method provided in this embodiment, and receives a DHCP service of a server (DHCP server). The server is, for example, a PC or a video controller, and the like, and the server is a controller with a network cable interface. The server can be connected with the broadcast control equipment through a network cable interface. The server is also provided with a DHCP function module which can be set through management software arranged on the server.

Firstly, it is ensured that the DHCP function of the broadcast control device is in an open state, and management software such as Viplex Express software developed by west ann nov electronic technology limited is provided at the PC side, which can provide DHCP service. When the broadcast control device, i.e. the client, is directly connected with the PC, i.e. the server, via the network, the client cannot establish peer-to-peer communication such as TCP with the management software of the PC because the client finds that there is no IP information setting on the client when logging in the network, i.e. the client does not have an IP address.

Then, the broadcast control device as a client will automatically send broadcast messages to find whether there is available DHCP service after opening the DHCP function. At this time, the broadcast control device does not know which network it belongs to, so the source address in the broadcast message is 0.0.0.0 and the destination address is 255.255.255.255. The management software of the server, for example, the PC, responds to the broadcast message sent by the broadcast control device, and sends a response message to the broadcast control device in response to the presence of the DHCP service. At this time, the content of the IP address field in the response message sent by the server is the IP address that the server can provide to the client for use, and the server will place its own IP address in the option field so that the client can distinguish different servers. In addition, the server side has a record of the allocated IP address after sending the response message.

After receiving the response message, the client knows that there is an available server in the network segment that can provide the DHCP service, and then the client sends a request message to request the network configuration parameters, such as information including an IP address, a mask, a gateway, a DNS, and the like, from the server providing the DHCP service. Usually, the client can only process one response message, and the general principle is that the client processes the response message received first. The IP address of the selected server and the required IP address are added into the option field in the request message sent by the client. Then, after receiving the request message, the server will first determine whether the IP address in the option field is the same as its own address. If not, the server side does not do any processing and only clears the corresponding IP address allocation record; if the IP address is the same as the service address, the service end responds to the client end with relevant information of the IP address, such as information including the IP address and service lease information of the IP address.

As shown in fig. 3, when the broadcast Control device has its own IP address, the broadcast Control device may connect with management software of the PC end, such as Viplex Express or LCT, through the IP address to establish TCP (Transmission Control Protocol) communication, that is, point-to-point communication, thereby realizing Control of the broadcast Control device by the management software.

In summary, the network connection establishment method provided in this embodiment implements network connection between the PC and the multimedia player only through the network cable in an environment where a router does not implement a local area network, and is applicable to an application scenario where there is no router and a WIFI network, thereby avoiding an unstable situation in existing establishment of connection through an AP function of the WIFI network; the defects that a wireless network card is required to be arranged at the PC end and a router is required to be arranged are avoided, the cost is saved, a new connection mode is provided for a user, the user connection scheme is ensured to be more perfect, and the method is suitable for various occasions.

[ second embodiment ]

Referring to fig. 4, a second embodiment of the present invention provides a network connection establishing apparatus. As shown in fig. 4, the network connection establishing apparatus 30 includes, for example: a finding module 31, a parsing module 33, a requesting module 35 and a connecting module 37.

The searching module 31 is configured to send a broadcast message through a network cable to search whether there is an available DHCP server. The parsing module 33 is configured to parse the received response packet corresponding to the broadcast packet to obtain an available target DHCP server. The request module 35 is configured to send a request packet in a broadcast manner, and request the target DHCP server for a network configuration parameter. The connection module 37 is configured to establish a point-to-point connection with the target DHCP server based on the network configuration parameter responded by the target DHCP server.

Further, the source address in the mentioned broadcast message is 0.0.0.0 and the destination address is 255.255.255.255. The mentioned request messages include, for example: and the IP address of the target DHCP server and the IP address allocated by the target DHCP server are analyzed from the response message. The mentioned network configuration parameters include: IP address, subnet mask, gateway, and DNS.

The network connection establishing method implemented by the network connection establishing apparatus 30 of the present embodiment is as described in the first embodiment, and therefore, will not be described in detail herein. Optionally, each module and the other operations or functions in the second embodiment are respectively for implementing the method in the first embodiment of the present invention, and are not described herein for brevity.

To sum up, the network connection establishment apparatus provided in the second embodiment of the present invention, in an environment where a router does not implement a local area network, implements network connection between a PC and a multimedia player only through a network cable, and is applicable to an application scenario where no router and a WIFI network are present, so as to avoid an unstable situation of connection establishment through an AP function of the WIFI network in the prior art; the defects that a wireless network card is required to be arranged at the PC end and a router is required to be arranged are avoided, the cost is saved, a new connection mode is provided for a user, the user connection scheme is ensured to be more perfect, and the method is suitable for various occasions.

[ third embodiment ]

Referring to fig. 5, a third embodiment of the present invention provides a network connection establishing method. As shown in fig. 5, the network connection establishment method includes, for example, steps S51 to S57.

Step S51: receiving a broadcast message through a network cable;

step S53: responding the broadcast message to send a response message to respond to available DHCP service;

step S55: receiving a request message;

step S57: and analyzing the request message, and sending out network configuration parameters to establish point-to-point connection with the DHCP client when judging that the IP address in the request message is the same as the IP address of the request message.

The difference between the network connection establishment method provided in this embodiment and the network connection establishment method provided in the first embodiment of the present invention is that: in addition, the two embodiments may refer to each other, that is, specific descriptions of the method steps related to the embodiment may refer to the first embodiment, and are not described herein for brevity. The technical effect of the network connection establishing method provided in this embodiment is the same as that of the network connection establishing method in the first embodiment, and is not described herein again.

[ fourth example ] A

Referring to fig. 6, a fourth embodiment of the present invention provides a network connection establishing apparatus. As shown in fig. 6, the network connection establishing apparatus 60 includes, for example: a broadcast message receiving module 61, a broadcast message responding module 62, a request message receiving module 63, and a request message parsing module 64.

The broadcast message receiving module 61 is configured to receive a broadcast message through a network cable. The broadcast message response module 62 is configured to send a response message in response to the broadcast message, in response to the available DHCP service. The request message receiving module 63 is configured to receive a request message. The request message analyzing module 64 is configured to analyze the request message, and send out a network configuration parameter when it is determined that the IP address in the request message is the same as the IP address of the request message, so as to establish a point-to-point connection with the DHCP client.

The network connection establishing method implemented by the network connection establishing apparatus 60 of the present embodiment is as described in the third embodiment, and therefore, will not be described in detail herein. Optionally, each module and the other operations or functions in the fourth embodiment are respectively for implementing the method in the third embodiment of the present invention, and are not described herein for brevity. The technical effect of the network connection establishing apparatus provided in this embodiment is the same as that of the network connection establishing method in the third embodiment, and is not described herein again.

[ fifth embodiment ]

Referring to fig. 7, a fifth embodiment of the present invention provides a network connection establishment system. As shown in fig. 7, the network connection establishment system 70 includes, for example, a control device 71 and a broadcast control device 73.

Wherein the control device 71 acts as a DHCP server. The broadcast control device 73 is connected to the control device 71 through a network cable, and functions as a DHCP client.

Specifically, the broadcast control device 73 includes, for example, a portal and a DHCP function module, which is, for example, an asynchronous play box and typically includes a programmable logic device such as an FPGA and an embedded processor such as an ARM processor connected to the programmable logic device, where the embedded processor is installed with an embedded operating system such as an Android operating system or a Linux operating system, and the DHCP function module is implemented, for example, by a user layer application installed in the embedded operating system. The control device 71 is a controller with a network cable interface, such as a PC or a video controller. The control device 71 is also provided with a DHCP function which can be set by means of management software. The management software is, for example, Viplex Express software, which is developed by the company west ann nov electronic technology, and can provide DHCP service.

Wherein the broadcast control device 73 is configured to perform the network connection establishment method according to the foregoing first embodiment. The control device 71 is used to perform the network connection establishment method as described in the third embodiment, and therefore, for the sake of brevity, will not be described in detail here.

To sum up, the network connection establishment system 70 according to the fifth embodiment of the present invention, in an environment where a router does not implement a local area network, implements network connection between a broadcast control device and a control device only through a network cable, and is applicable to an application scenario where no router and a WIFI network are present, so as to avoid an unstable connection establishment through an AP function of the WIFI network in the prior art; the defects that the control equipment needs to be provided with the wireless network card and the router are also needed are avoided, the cost is saved, a new connection mode is provided for a user, the user connection scheme is ensured to be more perfect, and the method is suitable for various occasions.

[ sixth embodiment ]

Referring to fig. 8, a sixth embodiment of the present invention provides a display system. As shown in fig. 8, the display system 40 includes, for example: an LED display screen 41, a broadcast control device 43 and a control device 45.

Wherein the broadcast control device 43 is connected to the LED display screen 41. The control device 45 is connected to the broadcast control device 43 via a network cable.

Specifically, the LED display screen 41 is formed by splicing a plurality of LED boxes, for example. The broadcast control device 43 comprises, for example, a portal and a DHCP function module, which is, for example, an asynchronous play box and typically comprises a programmable logic device such as an FPGA and an embedded processor connected to the programmable logic device such as an ARM processor, where the embedded processor is installed with an embedded operating system such as an Android operating system or a Linux operating system, and the DHCP function module is implemented, for example, by a user-layer application installed in the embedded operating system. The LED display screen 41 and the broadcast control device 43 are connected by a flat cable, for example, and the network port of the broadcast control device 43 is connected to the control device 45 via a network cable. The control device 45 is a controller with a network cable interface, such as a PC or a video controller. The control device 45 is also provided with a DHCP function which can be set by means of management software. The management software is, for example, Viplex Express software, which is developed by the company west ann nov electronic technology, and can provide DHCP service.

Wherein the broadcast control device 43 is configured to perform the network connection establishment method according to the foregoing first embodiment. The control device 45 is used to perform the network connection establishment method as described in the third embodiment, and therefore, for the sake of brevity, will not be described in detail here.

To sum up, in the display system 40 provided in the sixth embodiment of the present invention, under an environment where a router does not implement a local area network, network connection between the control device and the broadcast control device is implemented only through a network cable, which can be applied to an application scenario where no router and no WIFI network are present, and avoid a situation where connection established through an AP function of the WIFI network is unstable in the prior art; the defects that the control equipment needs to be provided with the wireless network card and the router are also needed are avoided, the cost is saved, a new connection mode is provided for a user, the user connection scheme is ensured to be more perfect, and the method is suitable for various occasions.

In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and/or method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and the actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A method for establishing a network connection, comprising:

sending a broadcast message through a network cable to find whether an available DHCP server exists;

analyzing the received response message corresponding to the broadcast message to obtain an available target DHCP server;

Sending a request message in a broadcasting mode, and requesting a network configuration parameter from the target DHCP server; and

and establishing point-to-point connection with the target DHCP server based on the network configuration parameters responded by the target DHCP server.

2. The method according to claim 1, wherein the source address in the broadcast message is 0.0.0.0 and the destination address is 255.255.255.255.

3. The method according to claim 1, wherein the step of analyzing the received response packet corresponding to the broadcast packet to obtain the available target DHCP server includes: and only analyzing the received first response message corresponding to the broadcast message.

4. The method according to claim 1, wherein the request message comprises: and the IP address of the target DHCP server and the IP address provided by the target DHCP server are analyzed from the response message.

5. A network connection establishment apparatus, comprising:

the searching module is used for sending a broadcast message through a network cable to search whether an available DHCP server exists;

the analysis module is used for analyzing the received response message corresponding to the broadcast message to obtain an available target DHCP server;

The request module is used for sending a request message in a broadcasting mode and requesting network configuration parameters to the target DHCP server; and

and the connection module is used for establishing point-to-point connection with the target DHCP server based on the network configuration parameters responded by the target DHCP server.

6. The apparatus according to claim 5, wherein the source address in the broadcast message is 0.0.0.0 and the destination address is 255.255.255.255; the request message includes: the IP address of the target DHCP server and the IP address distributed by the target DHCP server are analyzed from the response message; the network configuration parameters include: IP address, subnet mask, gateway, and DNS.

7. A method for establishing a network connection, comprising:

receiving a broadcast message through a network cable;

responding the broadcast message to send a response message to respond to available DHCP service;

receiving a request message;

and analyzing the request message, and sending out network configuration parameters to establish point-to-point connection with the DHCP client when judging that the IP address in the request message is the same as the IP address of the request message.

8. A network connection establishment apparatus, comprising:

The broadcast message receiving module is used for receiving broadcast messages through a network cable;

the broadcast message response module is used for responding the broadcast message and sending a response message so as to respond to available DHCP service;

a request message receiving module for receiving a request message;

and the request message analysis module is used for analyzing the request message and sending out network configuration parameters to establish point-to-point connection with the DHCP client when judging that the IP address in the request message is the same as the IP address of the request message.

9. A network connection establishment system, comprising:

the control equipment is used as a DHCP server side;

the broadcast control equipment is connected to the control equipment through a network cable and serves as a DHCP client;

wherein the broadcast control device is configured to perform the network connection establishment method according to any one of claims 1 to 4.

10. A display system, comprising:

an LED display screen;

the broadcasting control equipment is connected with the LED display screen and comprises a programmable logic device and an embedded processor connected with the programmable logic device, wherein the embedded processor is provided with an embedded operating system;

the control equipment is used as a DHCP server side and is connected with the broadcast control equipment;

Wherein the broadcast control device is configured to perform the network connection establishment method according to any one of claims 1 to 4.

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