TWI755049B - The processing system of the controlling iot equipment, the method and the gateway - Google Patents

Abstract

The processing system of the controlling IoT equipment, the method and the gateway comprise of a bridging equipment, a terminal device, a cloud server and a computer. The bridge equipment includes a first connector and a communication connector. The communication connector connects to the terminal device. The bridge equipment transforms a first network signal. A data access interface of the cloud server determines a first virtual device according to the select request. The data access interface generates a state report of the first virtual device according to the second network signal. The second connector of the gateway connects to the bridge equipment and the cloud server. The enum module generates a virtual connector and a second virtual device. The processor module maps the virtual connector to the communication connector. The processor module maps the second virtual device to the terminal device. The processor module transforms the first network signal to the second network signal according to the second virtual device.

Description

Processing system and method for controlling IoT terminal equipment and gateway applied in IoT

A processing system and method for controlling equipment of the Internet of Things, in particular, the processing system and method for controlling terminal equipment of the Internet of Things and a gateway applied in the Internet of Things.

With the rapid development of the Internet of Things (IoT), it also drives the development of big data and artificial intelligence (AI). The primary focus for data collection is the networking of end devices. For the current new terminal equipment, the networking function is already a built-in basic function. However, for traditional terminal equipment, the traditional terminal equipment only provides a fixed communication interface and protocol, and the used communication protocol is not compatible with the transmission of the current Ethernet network. Therefore, the current practice is to convert the signal through the bridge equipment, so that the traditional terminal equipment can realize the purpose of signal transmission through the Ethernet network.

In addition to the need for the support of the Ethernet network for the underlying terminal equipment, the upper cloud platform also has other problems. For the cloud platforms of major factories, the cloud platforms cannot directly control the access of traditional underlying devices. Therefore, the cloud platforms of major factories can only control specific terminal devices, but cannot realize access control of various terminal devices.

Although traditional terminal equipment can convert electrical signals into Ethernet packets through the signal conversion of bridge equipment. But if all terminal devices are connected to the cloud platform, it will cause communication congestion. This is because most of the traditional terminal devices use non-instant communication protocols or control methods. For example, the polling mechanism will visit all devices. When one terminal device receives a control command, other terminal devices will stop accepting the command until the aforementioned terminal device completes the command. Although this method ensures the complete execution of control commands, it will cause other bridge devices and terminal devices to be suspended under the framework of the Ethernet network.

The invention provides a processing system for controlling the terminal equipment of the Internet of Things, which is characterized in that the terminal equipment in the Internet of Things is accessed and a corresponding output report is generated. The processing system for controlling IoT terminal equipment includes: terminal equipment, heterogeneous bridge equipment, gateway and cloud server. The heterogeneous bridging device has a first network interface and a communication interface, the communication interface is electrically connected to the terminal device, and the heterogeneous bridging device converts the signal of the terminal device into the first network information; the cloud server has a data access interface, and the data access interface The first virtual device is determined according to the device selection request, and the data access interface generates a device status report of the first virtual device according to the second network information; the gateway has a second network interface, a processing module and an enumeration module, and the second The network interface network is connected to the heterogeneous bridge device and the cloud server, the enumeration module generates a virtual interface and a second virtual device, the processing module maps the virtual interface to the communication interface, and the processing module maps the second virtual device to the terminal device , the processing module converts the first network information into the second network information according to the second virtual device.

The present invention further provides a processing method for controlling an IoT terminal device, which includes: connecting a gateway network to a cloud server, a heterogeneous bridge device and a computing device; the computing device sends a communication interface setting request to the gateway ; the gateway generates a virtual interface according to the communication interface setting requirements, and the virtual interface is mapped to the first communication interface of the heterogeneous bridging device; the gateway receives the first network message through the virtual interface, and converts the first communication A network message is converted into a second network message; the second network message is sent to the cloud server; the cloud server generates a device status report according to the second network message.

The present invention further provides a gateway applied in the Internet of Things, which includes: a network interface, an enumeration module and a processing module. A network interface, the network is connected to the cloud server, the heterogeneous bridge device and the computing device, the network interface transmits the first network message and the second network message, and the network interface receives the communication interface setting request and the device generation request; enumerated Modules, enumerate modules to generate virtual interfaces and virtual devices, enumeration modules select the type of virtual interface according to the communication interface setting requirements, enumeration modules determine virtual devices according to device generation requirements; processing modules, connect to network interfaces and enumeration modules In the group, the processing module maps the virtual device to the terminal device, and the processing module converts the first network information into the second network information according to the second virtual device.

The processing system and method for controlling the terminal equipment of the Internet of Things and the gateway applied in the Internet of Things of the present invention can access the terminal equipment in the Internet of Things and generate corresponding output reports, and make the cloud cloud through the hierarchical management of the gateway. The server load can be effectively reduced. also, Through the separate settings of the first virtual device and the second virtual device, the mapping connection between the terminal device and the first virtual device can be flexibly assigned.

With regard to the features and implementation of the present invention, the preferred embodiments are described in detail as follows in conjunction with the drawings.

100: Handling Systems

110: Terminal equipment

120: Heterogeneous bridging device

121: The first network interface

122: Communication interface

130: Gateway

131: Second network interface

132: Processing modules

133:List Modules

134: virtual interface

135: Second virtual device

136:Agent

140: Cloud server

141: The third network interface

142: Operation Module

143: Storage Module

144:Data access interface

145: First virtual device

150: Computing Devices

211: First virtual interface

212: Second virtual interface

221: First Equipment

222: Second Device

FIG. 1 is a schematic diagram of the system architecture of the present invention.

FIG. 2A is a schematic diagram of the operation flow of the present invention.

FIG. 2B is a schematic diagram of the communication between the computing device and the gateway of the present invention.

FIG. 2C is a schematic diagram of the communication between the computing device and the cloud server of the present invention.

FIG. 3A is a schematic diagram of transmission between the gateway and the connected heterogeneous bridge device in the data access interface of the present invention.

FIG. 3B is a schematic diagram of transmission between the gateway and the connected heterogeneous bridge device in another data access interface of the present invention.

FIG. 4 is a schematic diagram of a mapping channel between an analog device and a terminal device according to the present invention.

FIG. 5 is a schematic diagram of the action mechanism of the virtual access model of the present invention.

Please refer to FIG. 1 , which is a schematic diagram of a processing system for controlling IoT terminal devices according to the present invention. The processing system 100 for controlling an IoT terminal device of the present invention includes a terminal device 110 , a heterogeneous bridge device 120 , a gateway 130 , a cloud server 140 and a computing device 150 . The gateway 130 is networked to connect at least one heterogeneous bridge device 120 , the cloud server 140 and the computing device 150 . The terminal device 110 may receive control commands from the heterogeneous bridging device 120 , or send output results to the heterogeneous bridging device 120 .

The heterogeneous bridge device 120 has a first network interface 121 and a communication interface 122 . The heterogeneous bridge device 120 transmits network information with the gateway 130 through the first network interface 121 . The heterogeneous bridge device 120 is electrically connected to the terminal device 110 through the communication interface 122 . The heterogeneous bridge device 120 has at least one communication interface 122 , and the communication interface 122 is connected to the terminal device 110 . The type of the communication interface 122 can be, but is not limited to, an analog input/output interface (Analog I/O), a digital input/output interface (Digital I/O) or a universal asynchronous transceiver transmission interface (Universal I/O). Asynchronous Receiver/Transmitter, UART) combination.

The heterogeneous bridging device 120 converts the received result signal into a first network message, and the first network message is compatible with the transmission protocol (Ethernet) of the Ethernet network. The heterogeneous bridge device 120 transmits the first network information through the first network interface 121 . In addition, the heterogeneous bridge device 120 also converts the received first network message into a control command corresponding to the terminal device 110 . The type of terminal device 110 corresponds to the communication interface 122 of the connected heterogeneous bridge device 120 . In other words, the communication interface 122 determines the terminal device 110 to which the heterogeneous bridge device 120 can be connected.

The cloud server 140 has a third network interface 141 , a computing module 142 and a storage module 143 . The computing module 142 is electrically connected to the third network interface 141 and the storage module 143 . The storage module 143 records the data access interface 144. In addition to receiving the second network information from the gateway 130, the data access interface 144 is used to generate a device status report according to the second network information. The computing device 150 can be connected to the cloud server 140 through a network, and configure the corresponding heterogeneous bridge device 120 and the corresponding virtual device in the data access interface 144 . Here, the virtual device set by the data access interface 144 is defined as the first virtual device 145 .

The gateway 130 has a second network interface 131 , a processing module 132 and an enumeration module 133 . The processing module 132 is electrically connected to the second network interface 131 and the enumeration module 133 . The second network interface 131 is network-connected to the computing device 150 , the heterogeneous bridge device 120 and the cloud server 140 . The gateway 130 transmits the aforementioned network packets to the heterogeneous bridge device 120 or the cloud server 140 through the second network interface 131 . The enumeration module 133 determines the type of the corresponding virtual interface 134 and the type of the second virtual device 135 according to the request sent by the computing device 150 .

Computing device 150 may be, but is not limited to, a personal computer (PC), a notebook computer (notebook), a mobile phone, or a tablet computer. The computing device 150 is configured to send the communication interface setting request and the device generation request to the gateway 130 , so that the gateway 130 generates the corresponding virtual interface 134 and the second virtual device 135 . The computing device 150 further sends the device selection request of the first virtual device 145 to the cloud server 140 , so that the data access interface 144 creates the first virtual device 145 . The computing device 150 connecting the cloud server 140 and the gateway 130 may be the same device, or may be two different computing devices 150 .

The processing module 132 is used for running the agent program 136 , and the agent program 136 is used for identifying the model list of the heterogeneous bridge device 120 and the type list of the terminal device 110 . Among them, the first virtual The kind of virtual device 145 may not necessarily be the same as the second virtual device 135 . In general, the user can set the first virtual device 145 and the second virtual device 135 to be devices of the same model. When the correct model of the first virtual device 145 cannot be selected, the first virtual device 145 compatible with the second virtual device 135 can be selected.

In order to further illustrate the process of the present invention for enumerating interfaces, processing equipment objects and outputting the status report of each device, please refer to FIG. 2A , the processing method for controlling the IoT terminal device 110 of the present invention includes the following steps: Step S210 : The gateway network is connected to the cloud server, the heterogeneous bridge device and the computing device; Step S220: The computing device sends a device selection request to the cloud server for generating the first virtual device; Step S230: The gateway is set according to the communication interface A virtual interface is required to be generated, and the virtual interface is mapped to the first communication interface of the heterogeneous bridge device; step S240: the gateway generates a second virtual device according to the device generation requirement; step S250: the second virtual device is mapped to the first virtual device, transmitting the signal of the second virtual device to the first virtual device; step S260: the gateway receives the first network message through the virtual interface, and converts the first network message into the second network message; step S270: converts the first network message Two network messages are sent to the cloud server; and step S280 : the cloud server generates a device status report according to the second network message.

First, for the setting process of the gateway 130 and the cloud server 140 , the computing device 150 is networked to the gateway 130 and the cloud server 140 . For the setting of the cloud server 140, the computing device 150 needs to set the type of the first virtual device 145 for the data access interface 144, so that the data access interface 144 can directly access the data content of the second network message. In other words, the operation state of the first virtual device 145 displayed on the data access interface 144 is determined according to the content of the second network message. The data access interface 144 generates a corresponding device status report according to each of the first virtual devices 145 .

Next, the user configures the operating environment of the gateway 130 through the computing device 150 . The computing device 150 sends the communication interface setting request and the device generation to the gateway 130 requirements, please refer to Figure 2B. After the gateway 130 receives the communication interface setting request, the enumeration module 133 generates the corresponding virtual interface 134 and the second virtual device 135 . After the computing device 150 is network-connected to the gateway 130 , the gateway 130 can provide each of the connected heterogeneous bridge devices 120 . And each heterogeneous bridge device 120 also has its own communication interface 122 . Therefore, the user can obtain the model of each heterogeneous bridge device 120 through the gateway 130 , and then set the type of the communication interface 122 to which it belongs.

The gateway 130 and the connected heterogeneous bridge device 120 may be listed on the display screen of the computing device 150, as shown in FIG. 3A. The gateways 130 in FIG. 3A are gateway A and gateway B, respectively. The gateway A connects two heterogeneous bridging devices, namely the heterogeneous bridging device I and the heterogeneous bridging device II. The heterogeneous bridge device 1 is connected to three other terminal devices 110. The gateway B is connected to a heterogeneous bridging device 120, which is a heterogeneous bridging device III. The heterogeneous bridge device III is connected to a terminal device 110 . The user may select any of the heterogeneous bridging devices 120 in Figure 3A. In Fig. 3B, the selected hetero-bridging device 120 is represented by a black thick dashed box. The computing device 150 lists the types and quantities of the corresponding communication interfaces 122 according to the model information fed back by the heterogeneous bridge device 120 , as shown in FIG. 3B . After the user selects the communication interface 122 , the gateway 130 will define the selected communication interface 122 as the virtual interface 134 , so that the gateway 130 communicates with the heterogeneous bridge device 120 according to the communication protocol of the virtual interface 134 .

After completing the setting of the virtual interface 134 , the agent program 136 will list the corresponding terminal device 110 according to the selected virtual interface 134 . For example, when the user selects RS-232 as the virtual interface 134, the agent program 136 selects a list of the corresponding terminal devices 110 according to the RS-232. After the user selects the terminal device 110 from the list, the agent program 136 defines the selected device as the second virtual device 135 . The agent program 136 encapsulates the second virtual device 135 as a device generation request and sends it to the gateway 130 . When the second virtual device 135 is selected, the gateway 130 will load the corresponding properties and operation model of the second virtual device 135 . Wherein, the operation attributes and models are generated according to the operation mode of the terminal device 110 .

For example: the conversion of electrical signals to temperature and humidity, or the trigger types of digital signals. The gateway 130 will be mapped to the communication interface 122 of the heterogeneous bridge device 120 according to the virtual interface 134 . Wherein, the mapping operation mode is to encapsulate the transmission content of the communication interface 122 through the communication protocol of the Ethernet network, so that the gateway 130 can connect with the heterogeneous bridge device 120 The connected terminal devices 110 communicate with each other.

The main function of the cloud server 140 is to provide a report output of the real-time status and history information of the terminal device 110 . The data access interface 144 of the cloud server 140 can not only provide the setting of the first virtual device 145 by the computing device 150 , but also can provide the mapping link between the first virtual device 145 and the terminal device 110 . The mapping link is to connect the terminal device 110 , the second virtual device 135 and the first virtual device 145 in series, so that the electrical signal sent by the terminal device 110 can be converted into the data of the first virtual device 145 through the gateway 130 material. In other words, the gateway 130 converts the first network information into data corresponding to the terminal device 110 according to the virtual interface 134 , so that the data access interface 144 displays the operation of the corresponding first virtual device 145 (the corresponding terminal device 110 ) status and value.

The present invention can reduce the burden of connection and transmission between the cloud server 140 and the terminal device 110 by connecting the heterogeneous bridge device 120 through the gateway 130 . Since most of the transmission protocols used by the current terminal device 110 are general training protocols for asynchronous transmission, the input and output processing will occupy most of the server's resources. In addition to the non-instant response from the terminal device 110 , the server needs to spend time waiting for a response when processing the input/output of the terminal device 110 . Through the control of the heterogeneous bridge device 120 by the gateway 130 of the present invention, the operation load of the terminal device 110 by the cloud server 140 can be distributed to the gateway 130 , so that the cloud server 140 can control the work dispatch of the terminal device 110 .

In addition to the aforementioned information transmission from the terminal device 110 to the cloud server 140 , in the present invention, the cloud server 140 can also send control commands to the terminal device 110 for driving the terminal device 110 to operate and report the operation result. After the cloud server 140 sends the control command to the terminal device 110 , the cloud server 140 converts the control command into a second network message and sends it to the gateway 130 . The gateway 130 translates and identifies the corresponding terminal device 110 of the control command according to the second network message, and repackages the second network message into the first network message. The gateway 130 sends the first network message to the corresponding heterogeneous bridge device 120 and the terminal device 110 . The heterogeneous bridge device 120 translates the first network message into a control command, and sends the control command to the terminal device 110 .

In order to clearly illustrate the operation process of the present invention, the following description takes two terminal devices 110 as an example. The two terminal devices 110 are respectively defined as the first device 221 (assuming a temperature sensor) device) and the second device 222 (assuming the type is a light alarm), the communication interface of the first device 221 is an AI interface (Analog input), and the communication interface of the second device 222 is a DI interface (Digital input). The gateway 130 connects the two heterogeneous bridge devices 120 , the computing device 150 and the cloud server 140 , as shown in FIG. 4 .

First, the computing device 150 sends a communication interface setting request and a device generation request to the gateway 130, thereby setting the virtual interface 134 and the virtual device of the gateway 130, please refer to FIG. 2C. Since the gateway 130 connects the two heterogeneous bridge devices 120 , the gateway 130 will generate the first virtual interface 211 and the second virtual interface 212 . The first virtual interface 211 is mapped to the AI interface of the first device 221 , and the second virtual interface 212 is mapped to the DIO interface of the second device 222 . The gateway 130 will set the first virtual interface 211 to be mapped to the first device 221 , and the second virtual interface 212 to be mapped to the second device 222 . The arrows indicate that the first device 221 is mapped to the first virtual interface 211 through the aforementioned elements, and the arrows indicate that the second device 222 is mapped to the second virtual interface 212 through the aforementioned elements. The gray part in FIG. 4 represents the second virtual interface 212 , and the second virtual interface 212 is used to represent the heterogeneous bridge device 120 and the communication interface 122 mapped and connected by the gateway 130 .

Next, the computing device 150 sends a device generation request to the gateway 130, so that the gateway 130 generates two sets of virtual devices. Here, the two groups of virtual devices generated by the gateway 130 are respectively defined as a first simulated device and a second simulated device. The first simulated device is generated according to the first virtual interface 211 , and the first simulated device will correspond to the first device 221 . The second simulated device is generated according to the second virtual interface 212 , and the second simulated device will correspond to the second device 222 . The first simulated device can obtain the electrical signal of the first device 221 through the first virtual interface 211 . The gateway 130 converts the electrical signal of the first device 221 into a data signal, and encapsulates the data signal into a second network message.

The computing device 150 sends a device selection request to the cloud server 140 , and the type of the virtual device can be selected in the data access interface 144 . As shown in FIG. 5 , the user selects a virtual temperature sensing device in the data access interface 144 through the computing device 150 , and maps the virtual temperature sensing device to the first simulated device. In FIG. 5, the device listed by the gateway 130 is used as the source option of the mapping.

Here, it is assumed that the electrical measurement range of the first device 221 is 4-20 mA, and the The applicable temperature range is 0~100℃. Therefore, the gateway will establish a relevant conversion function library for the first device 221, please refer to the following formula: temperature T=6.25*AI-25 formula 1

AI is the electrical signal value measured by the first device 221

Therefore, when the AI value measured by the first device 221 is 8.5 mA, the first analog device obtains a temperature of 28.125° C. according to the AI electrical signal value. The gateway 130 encapsulates the second network message according to the temperature value and transmits it to the cloud server 140 . Therefore, the virtual temperature sensing device will obtain the value of the temperature of 28.125°C, and the user can see the temperature of 28.125°C through the data access interface 144 instead of the AI value of 8.5mA.

The gateway 130 performs the following setting processing for the second device 222 of the DIO interface. Computing device 150 instructs gateway 130 to generate second virtual interface 212 with a second simulated device. When the second simulated device is selected, the gateway 130 also loads the relevant operation model of the second device 222 . For example, the second device 222 is a device with 4 sets of DI inputs. Therefore, the second device 222 sends different first network messages to the gateway 130 according to different triggering conditions. For example, the second device 222 may send a combination of the following electrical signals: "0000", "0100", "1010" or "1111". When the second simulated device is selected, the gateway 130 also loads the operation model of the second device 222 at the same time. In this example, various electrical signal combinations of the second device 222 represent different detection states, respectively.

After the gateway 130 receives the first network message from the second device 222, the gateway 130 will generate a corresponding output signal according to the second simulated device and the operation model. The gateway 130 encapsulates the output signal into a second network message and sends it to the cloud server 140 . A group of virtual devices of the electronic fence are set in the data access interface 144 for mapping and connecting to the second analog device. After the data access interface 144 receives the second network message, the data access interface 144 displays a corresponding alert state according to the second network message. Therefore, the user can observe the current operating status of the virtual temperature sensing device (corresponding to the first device 221 ) and the electronic fence (corresponding to the second device 222 ) on the data access interface 144 .

The processing system and method for controlling the terminal device 110 of the Internet of Things and the gateway 130 applied in the Internet of Things of the present invention can access the terminal device 110 in the Internet of Things and generate a corresponding output report, and through the distribution of the gateway 130 Layer management enables the load on the cloud server 140 to be to effectively reduce. In addition, through the separate settings of the first virtual device 145 and the second virtual device 135 , the mapping connection between the terminal device 110 and the first virtual device 145 can be flexibly assigned.

Although the present invention is disclosed by the above-mentioned preferred embodiments, it is not intended to limit the present invention. Anyone who is familiar with the similar arts can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of patent protection of the invention shall be determined by the scope of the patent application attached to this specification.

100: Handling Systems

110: Terminal equipment

120: Heterogeneous bridging device

121: The first network interface

122: Communication interface

130: Gateway

131: Second network interface

132: Processing modules

133:List Modules

134: virtual interface

135: Second virtual device

136:Agent

140: Cloud server

141: The third network interface

142: Operation Module

143: Storage Module

144:Data access interface

145: First virtual device

150: Computing Devices

Claims (8)

A processing system for controlling the terminal equipment of the Internet of Things, which is characterized in that the terminal equipment in the Internet of Things is accessed and a corresponding output report is generated. The processing system for controlling the terminal equipment of the Internet of Things comprises: a heterogeneous bridge device having a first network the interface and a communication interface, the communication interface is electrically connected to a terminal device, the heterogeneous bridge device converts the signal of the terminal device into a first network message; a cloud server has a data access interface, the data storage The retrieval interface determines a first virtual device according to a device selection request, the data access interface generates a device status report of the first virtual device according to a second network message; and a gateway, the gateway has a first virtual device Two network interfaces, a processing module and an enumeration module, the second network interface network is connected to the heterogeneous bridge device and the cloud server, the enumeration module generates a virtual interface and a second virtual device, The processing module maps the virtual interface to the communication interface, the processing module maps the second virtual device to the terminal device, and the processing module converts the first network information into the terminal device according to the second virtual device Second Internet Message. The processing system for controlling IoT terminal equipment according to claim 1, wherein the types of the communication interface include an analog input/output interface, a digital input/output interface or a general asynchronous transceiver transmission interface. The processing system for controlling IoT terminal devices according to claim 1, further comprising a computing device for sending a communication interface setting request and a device generation request to the gateway. The processing system for controlling an IoT terminal device according to claim 3, wherein the gateway receives the communication interface setting request and selects the type of the virtual interface according to the communication interface, and the gateway generates the request and the virtual interface according to the device. The type of the terminal device sets the second virtual device. A processing method for controlling the terminal equipment of the Internet of Things, which is characterized in that the terminal equipment in the Internet of Things is accessed and a corresponding output report is generated, and the processing method for controlling the terminal equipment of the Internet of Things comprises: connecting a gateway network to a cloud server, a heterogeneous bridge device and a computing device; The computing device sends a communication interface setting request to the gateway; the gateway generates a virtual interface according to the communication interface setting request, and the virtual interface is mapped to a first communication interface of the heterogeneous bridge device; the gateway The server receives a first network message through the virtual interface, converts the first network message into a second network message; sends the second network message to a cloud server; the cloud server according to the The second network message generates a device status report; the computing device sends a device selection request to the cloud server to determine a first virtual device; and the gateway communicates with the terminal device according to a device generation request from the computer The type determines a second virtual device. The processing method for controlling an IoT terminal device according to claim 5, wherein the virtual interface receiving the first network message further comprises: the cloud server establishing a mapping association between the first virtual device and the second virtual device , so that the second network message corresponds to the first network message. The processing method for controlling an IoT terminal device according to claim 5, wherein after the heterogeneous bridging device is connected to the network, the method further comprises: electrically connecting the heterogeneous bridging device to a terminal device; and the heterogeneous bridging device transmitting the information of the terminal device. the first network message. A gateway used in the Internet of Things is characterized in that various communication interfaces and terminal equipment are provided for server data sampling. The gateway used in the Internet of Things comprises: a network interface, the network is connected to a a cloud server, a heterogeneous bridge device and a computing device, the network interface transmits a first network message and a second network message, and the network interface receives a communication interface setting request and a device generation request; a an enumeration module, the enumeration module generates a virtual interface and a virtual device, the enumeration module selects the type of the virtual interface according to the communication interface setting requirements, the enumeration module determines the virtual device according to the device generation requirements; and a The processing module is connected to the network interface and the enumeration module, the processing module maps the virtual device to a terminal device, and the processing module maps the first virtual device according to a second virtual device A network message is converted into the second network message.

Images