WO2013040844A1 - Gateway device, intelligent internet of things system and hybrid access method thereof - Google Patents

Gateway device, intelligent internet of things system and hybrid access method thereof Download PDF

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Publication number
WO2013040844A1
WO2013040844A1 PCT/CN2011/085078 CN2011085078W WO2013040844A1 WO 2013040844 A1 WO2013040844 A1 WO 2013040844A1 CN 2011085078 W CN2011085078 W CN 2011085078W WO 2013040844 A1 WO2013040844 A1 WO 2013040844A1
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WIPO (PCT)
Prior art keywords
data
module
gateway device
gateway
terminal device
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PCT/CN2011/085078
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French (fr)
Chinese (zh)
Inventor
喻子达
王袭
赵向阳
周林
安娜
Original Assignee
海尔集团公司
海尔集团技术研发中心
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Priority to CN201110282722.7A priority Critical patent/CN103023761B/en
Priority to CN201110282722.7 priority
Application filed by 海尔集团公司, 海尔集团技术研发中心 filed Critical 海尔集团公司
Publication of WO2013040844A1 publication Critical patent/WO2013040844A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. local area networks [LAN], wide area networks [WAN]
    • H04L12/46Interconnection of networks
    • H04L12/4633Interconnection of networks using encapsulation techniques, e.g. tunneling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. local area networks [LAN], wide area networks [WAN]
    • H04L12/46Interconnection of networks
    • H04L12/4604LAN interconnection over a backbone network, e.g. Internet, Frame Relay
    • H04L12/462LAN interconnection over a bridge based backbone
    • H04L12/4625Single bridge functionality, e.g. connection of two networks over a single bridge

Abstract

Disclosed are a gateway device, an intelligent Internet of things system and a hybrid access method thereof. The gateway device is provided at the intelligent Internet of things system and includes a bus interface module and further includes a data-receiving module for receiving data from terminal equipment or other gateway devices, an encapsulation processing module for encapsulating the data from the terminal equipment according to the format of a preset data frame, a decapsulation processing module for decapsulating the data from other gateway devices to obtain an original data frame, and a data-sending module for sending the data processed by the encapsulation processing module to a corresponding gateway device or sending the data processed by the decapsulation processing module to corresponding terminal equipment. The present invention realizes the bidirectional forwarding function of wired control signals and wireless control signals in an intelligent Internet of Things system and has good extensibility and security.

Description

 Gateway device, intelligent Internet of things system and hybrid access method of the system

 The present invention relates to the field of communications, and in particular, to a gateway device, an intelligent Internet of things system, and a hybrid access method of the system.

Background technique

 The home bus is an important foundation for the realization of smart homes. It is the internal nervous system of the house. Its main function is to connect various electronic and electrical devices in the home. It is responsible for all kinds of communication devices in the home (including security, telephone, home appliances, audio-visual equipment). Etc.) Connect together to form a complete home network. Home intelligence requires many home appliances and networks to be compatible with each other. The bus protocol is the essence of it. Only the interface is smooth, and the home appliance can "understand" the instructions issued by people. The access of intelligent terminals is one of the important issues to be solved in smart homes. .

 Technically, the challenge for smart home construction is not equipment or implementation issues, but standards and protocol issues. Smart home is a multi-industry cross-coverage system project. Each equipment manufacturer produces equipment according to different interface standards and protocols. As a result, interconnection and intercommunication between different devices becomes very difficult. Therefore, establishing standards and protocols that are commonly followed is an urgent issue for the development of smart home systems. Summary of the invention

 The main purpose of the present invention is to provide a gateway device, an intelligent Internet of things system, and a hybrid access method of the system, so as to solve the problem that the smart home system existing in the prior art cannot comprehensively utilize wired access and wireless access, and has poor scalability. , the problem of poor security, where:

A gateway device according to an embodiment of the present invention is provided in a smart Internet of Things system, the gateway device comprising a bus interface module, further comprising: a data receiving module, configured to receive data from the terminal device or from other gateway devices; The data from the terminal device is encapsulated according to a format of a preset data frame; the decapsulation processing module is configured to decapsulate data from other gateway devices to obtain an original data frame; and the data sending module is configured to pass the data The data processed by the encapsulation processing module is sent to the corresponding gateway device, or processed by the decapsulation processing module. The data is sent to the corresponding terminal device.

 The bus interface module further includes a data monitoring module, and the method further includes: a monitoring module, configured to determine a priority level of the burst data in the presence of burst data; a comparison module, configured to compare the priority level of the burst data with the current communication The priority level of the data is compared; the control module is configured to: if the priority level of the burst data is higher than the priority level of the current communication data, suspend the current communication, preferentially send the burst data, and resume the previously suspended communication after the data transmission is completed; If the priority level of the burst data is equal to or lower than the priority level of the current communication data, the current communication is continued, and the channel is reserved for the burst data, and the burst data is sent after the current communication ends.

 The bus interface module further includes: an address allocation module, configured to allocate an IP address to the terminal device in advance.

 The data receiving module includes: a wireless receiving module, configured to receive data from the wireless terminal device through a wireless interface; a wired receiving module, configured to receive data from the wired terminal device through a wired interface; and a system bus interface module, configured to receive from Data from other gateway devices.

 The wireless interface includes at least one of the following: a wireless fidelity interface, a radio frequency interface, an infrared interface, and a Bluetooth interface.

 The data sending module includes: a first sending module, configured to send data processed by the encapsulation processing module to a corresponding gateway device; and a second sending module, configured to send data processed by the decapsulation processing module to the corresponding terminal device.

 The gateway device further includes: a power module, configured to supply power to the data receiving module, the encapsulation processing module, the decapsulation processing module, the data sending module, and the data monitoring module.

 A smart Internet of Things system according to an embodiment of the present invention, including a total gateway device, further includes the above-described gateway device.

 An intelligent building according to an embodiment of the present invention includes a building body and a smart Internet of Things system disposed in the building body, and the smart Internet of Things system is the above-described smart Internet of Things system.

The hybrid access method of the smart Internet of things according to the embodiment of the present invention includes: receiving data from a terminal device or from other gateway devices; encapsulating data from the terminal device in a format of a preset data frame, or from other gateways The data of the device is decapsulated to obtain the original data frame; the encapsulated data is sent to the corresponding gateway device, or will be decapsulated The data is sent to the corresponding terminal device.

 The method further includes: determining, in the case that the burst data exists, the priority level of the burst data; comparing the priority level of the burst data with the priority level of the current communication data; if the priority level of the burst data is higher than the current communication data Priority level, the current communication is suspended, the burst data is sent preferentially, and the previously suspended communication is resumed after the data transmission is completed; if the priority level of the burst data is equal to or lower than the priority level of the current communication data, the current communication is continued, The channel is reserved for the burst data, and the burst data is sent after the current communication ends.

 Before the receiving data from the terminal device or from other gateway devices, the method further includes: pre-assigning the IP address to the terminal device.

 The receiving data from the terminal device or from other gateway devices includes: receiving data from the wireless terminal device through the wireless interface; receiving data from the wired terminal device through the wired interface; and receiving data from other gateway devices.

 The wireless interface includes at least one of the following: a wireless fidelity interface, a radio frequency interface, an infrared interface, and a Bluetooth interface.

 Compared with the prior art, according to the technical solution of the present invention, after receiving the data of multiple formats from the terminal device, the gateway device uniformly encapsulates and transmits the data according to a preset data frame format, and monitors The transmission process realizes the bidirectional forwarding function of the wired control signal and the wireless control signal in the smart home Internet of Things system, and has good scalability and security. DRAWINGS

 The drawings are intended to provide a further understanding of the invention, and are intended to be illustrative of the invention. In the drawing:

 1 is a block diagram showing the structure of a gateway device according to an embodiment of the present invention;

 2 is a block diagram showing a preferred structure of a gateway device according to an embodiment of the present invention;

3 through 5 are flow diagrams of methods in accordance with an embodiment of the present invention. detailed description The present invention will be further described in detail below with reference to the drawings and specific embodiments.

 According to an embodiment of the present invention, a gateway device is provided. Referring to FIG. 1, FIG. 1 is a structural block diagram of a gateway device according to an embodiment of the present invention. The gateway device is disposed in a smart home Internet of Things system, and the gateway device includes a bus interface module. In order to distinguish from the main gateway device in the smart home Internet of Things system, the gateway device may also be referred to as a sub-gateway device.

 The gateway device includes a bus interface module. As shown in FIG. 1, the bus interface module further includes: an address allocation module 10, a data receiving module 20, a package processing module 30, a decapsulation processing module 40, a data sending module 50, and a data monitoring module 60.

 2 is a block diagram showing a preferred configuration of a gateway device according to an embodiment of the present invention. Referring to FIG. 1 and FIG. 2, the address assignment module 10 is configured to allocate an IP address to a terminal device of the access gateway device in advance. The address allocation module 10 forms a wireless local area network using wireless terminals of the access gateway device using various wireless protocols, and the IP address of the fixed terminal device (such as a sensor, an air conditioner, a television, etc.) in the smart home Internet of things system is owned by the gateway device to which it belongs. The address assignment module 10 is pre-allocated, and the mobile terminal device (e.g., cell phone, notebook, PDA, etc.) is assigned a temporary IP address by the address assignment module 10 of the gateway device to which it belongs when joining the network.

 The data receiving module 20 is connected to the address assigning module 10 for receiving data from the terminal device and from other gateway devices (primary gateway devices), that is, the gateway device is to receive data from the terminal side and the system side, respectively. The data receiving module 20 specifically includes: a wireless receiving module 22, a wired receiving module 24, and a system bus interface module 26. The wireless receiving module 22 is configured to receive data from the wireless terminal device by using a wireless interface, including but not limited to one of the following: a wireless fidelity (WIFI) interface, a radio frequency interface, an infrared interface, and a Bluetooth interface. The wired receiving module 24 is for receiving data from the wired terminal device through a wired interface. The system bus interface module 26 is for receiving data from other gateway devices (primary gateway devices).

For the terminal side, services with different functions need to use different transmission methods and corresponding interface standards. For example, a low-speed data link represented by smart device monitoring can use access methods such as radio frequency and WIFI. Intelligent terminal devices include, for example, intelligent curtain controllers, intelligent infrared emitters, intelligent light emitters, smart door and window controllers, temperature sensors, humidity sensors, multi-function remote controls, smoke detectors, gas probes, mobile phones, PDAs, computers, etc. Wait. Home multimedia entertainment The high-speed data link represented by video surveillance requires the use of optical fiber, coaxial cable and other access methods. A single access method cannot meet the requirements of different services. To solve this problem, the present invention combines a wired access method with a wireless access method, and fully utilizes wireless access, is easy to expand, and has low cost and wired access transmission. The advantages of high speed and high reliability ensure accurate and efficient data transmission.

 It can be seen from the above description of the data receiving module 20 that the data received by the data receiving module 20 from the terminal side is data including multiple formats, which results in poor compatibility of the data in system transmission and data processing. Therefore, the encapsulation processing module 30 needs to perform unified encapsulation processing on the data received by the wireless receiving module 22 and the wired receiving module 24 according to the format of the preset data frame, so that the data is consistent and standardized.

 Specifically, the encapsulation processing module 30 performs encapsulation processing on the data, including the following steps: Step 1: First, determine the format of the data according to the type of the data source end (such as Bluetooth data, WIFI data, radio frequency data, etc.), and read the data according to the corresponding format. Packet information (such as source address, packet number, packet type, destination address, packet length, parity information, etc.).

 Step 2: Uniformize and encapsulate the data according to a preset standardized format, and add information of the sub-gate device (such as sub-gateway address, sub-gateway ID, data source legality, etc.) to the data packet.

 The data received by the data receiving module 20 from the system side is encapsulated, consistent and standardized data. In this case, the decapsulation processing module 40 needs to decapsulate the data from other gateway devices (system side). Get the original data frame. The processing of the decapsulation processing module 40 is an inverse operation of the processing of the encapsulation processing module 30, and the specific processing procedure is not described herein.

 The transmission of the data transmitting module 50 includes two aspects, which are implemented by the first transmitting module 52 and the second transmitting module 54, respectively. The first transmitting module 52 is responsible for transmitting the data processed by the encapsulation processing module 30 to the corresponding gateway device. The second transmitting module 54 is responsible for transmitting the data processed by the decapsulation processing module 40 to the corresponding terminal device.

The data monitoring module 60 is configured to monitor the transmission of data, and in the case where there is burst data, prioritize the transmission of data with a high priority. The data monitoring module 60 includes: a monitoring module 62, configured to determine a priority level of burst data in the presence of burst data; a comparison module 64, configured to compare a priority level of burst data with a priority level of current communication data; The module 66 is configured to suspend the current pass if the priority level of the burst data is higher than the priority level of the current communication data. The message is sent preferentially, and the previously suspended communication is resumed after the data is sent. If the priority of the burst data is equal to or lower than the priority of the current communication data, the current communication is continued, and the data is reserved for the burst data. Channel, send burst data after the current communication ends.

 The data monitoring module 60 is responsible for allocating channel usage order to multiple users sharing the same channel, avoiding signal collision on the channel, and ensuring fair, efficient and orderly access of the user. The present invention uses a MAC protocol based on a handshake mechanism, and based on this, uses a priority-based adaptive access control working mode to support burst communication mode. For example: Information is divided into 3 levels according to priority, and 2 bits are defined in the RTS (Request To Send Request) header to describe:

 (1) Level 3 is the highest priority, indicating that data and control commands that are extremely important and very demanding in real time are transmitted. When the receiving end receives the request, it immediately interrupts the existing communication, sends a response signal, establishes a connection, and performs communication.

 (2) Level 2 is a high priority, important and real-time requirements for more stringent data and control commands. When the receiving end receives the request, it continues the existing communication, and immediately after the communication ends, it sends an acknowledgement signal to establish a connection and communicate.

 (3) Level 1 is ordinary priority, data with poor importance and real-time requirements (such as status information, etc.). In the case of a high priority request, the transmission can be suspended and the transmission continues after the high priority communication ends.

 The above-mentioned priority levels are merely illustrative and are not intended to limit the scope of the present invention. Based on the above examples, the burst communication link management process includes the following methods:

 (1) If there is urgent data (level 2, level 3) to be sent, a burst communication request is sent;

(2) If the current communication level is the same as the request level, continue communication, and send the request to the backbone node to reserve a channel for burst data. Immediately after the end of the communication, the response message is replied, a connection is established, and data transmission is performed.

 (3) If the current communication level is less than the request level, the current communication is immediately suspended, and the request is sent to the backbone node, and the response message is immediately replied, the connection is established, data transmission is performed, and the previously suspended communication is resumed after the transmission ends.

(4) If the current communication level is greater than the request level, the original communication is continued, and the request is sent to the backbone node to reserve a channel for burst data. Reply to the response immediately after the current communication ends Information, establish a connection, and transfer data.

 In addition, the gateway device according to the embodiment of the present invention further includes: a power module (not shown) for supplying power to the data receiving module, the encapsulation processing module, the decapsulation processing module, the data sending module, and the data monitoring module.

According to an embodiment of the present invention, there is also provided a smart Internet of Things system, the smart Internet of Things system comprising: a general gateway device and one or more sub-gateway devices (gateway devices).

 The total gateway device is responsible for assigning an IP address to each sub-gateway device, and receiving data from each sub-gateway device, and determining whether the received data is sent to itself, and if so, decapsulating the data and processing; if not, the data is Forwarding to the corresponding sub-gateway device, the data is processed by the corresponding sub-gateway device.

 For the specific structure and function of the above-mentioned sub-gateway device, please refer to FIG. 1 and FIG. 2, and details are not described herein.

According to an embodiment of the present invention, a hybrid access method of a smart Internet of Things is also provided.

 FIG. 3 is a flowchart of a hybrid access method of a smart Internet of Things according to an embodiment of the present invention. As shown in FIG. 3, the method includes:

 Step S302, receiving data from the terminal device or from other gateway devices. Specifically, the method includes: receiving data from a wireless terminal device through a wireless interface, receiving data from the wired terminal device through a wired interface, and receiving data from another gateway device, where the wireless interface includes at least one of the following: a wireless fidelity interface, RF interface, infrared interface, Bluetooth interface.

 Step S304, the data from the terminal device is encapsulated according to the format of the preset data frame, or the data from the other gateway device is decapsulated to obtain the original data frame.

 Step S306: Send the encapsulated data to the corresponding gateway device, or send the decapsulated data to the corresponding terminal device.

 Referring to FIG. 4, after step S306, the method further includes:

S402. Determine, in the case that burst data is present, a priority level of burst data. S404. Compare a priority level of the burst data with a priority level of the current communication data.

S406, if the priority level of the burst data is higher than the priority level of the current communication data, suspending the current communication, preferentially transmitting the burst data, and restoring the previously suspended communication after the burst data is sent; if the priority of the burst data is equal to or lower than The priority level of the current communication data continues with the current communication, and the channel is reserved for the burst data, and the burst data is sent after the current communication ends.

 Referring to FIG. 5, FIG. 5 is a flowchart of an embodiment of a method according to the present invention. As shown in FIG. 5, based on the method shown in FIG. 3, the method further includes:

 Step S301: Assign an IP address to the terminal device in advance.

 Step S303, determining whether the terminal device is the terminal device to which the sub-gateway device belongs, and if yes, proceeding to step S304, otherwise discarding the data.

The following describes the specific processing of data communication in the intelligent Internet of Things system. The data communication in the intelligent Internet of Things system can be divided into three types: (1) communication between intelligent terminal devices under the same sub-gateway device; (2) communication between intelligent terminal devices under different sub-gateway devices; (3) Communication between the intelligent terminal device and the primary gateway device. The following descriptions are made separately:

 (1) If the intelligent terminals under the same gateway need to communicate, the data can be directly forwarded through the wireless gateway after receiving the data, and the destination terminal receives the data packet and replies with a response message to complete a transmission. The communication between the intelligent terminals under the same wireless gateway does not need to go through the central data switch and the control center, which reduces the consumption of routing addresses and reduces the load on the network.

 (2) If the intelligent terminals under different gateways need to communicate, the source terminal sends data to the associated gateway, and the data is processed after receiving the data, and the data is normalized, standardized, packaged, and packaged according to a predetermined communication protocol. A good data packet is sent to the corresponding gateway by the bus interface unit. After receiving the data packet, the gateway decapsulates and sends it to the destination terminal through the corresponding wireless port of the terminal. After receiving the data packet, the destination terminal replies with a response message to the home total gateway device, and the total gateway device forwards to the source terminal to complete a transmission.

(3) The communication between the intelligent terminal and the home total gateway includes the data collected by the terminal (temperature, humidity, gas sensor, etc.) sent to the home total gateway and the home main gateway to control the intelligent terminal (for intelligent Control of lights, curtains, etc.). If the smart terminals need to communicate with the home gateway, the source terminal sends data to the associated wireless gateway, and the data is processed after receiving the data, normalizing and normalizing the data, and encapsulating the packaged data packets through the bus. The interface unit is sent via the bus to the home gateway. The home total gateway decapsulates the data packet according to a predetermined protocol, and replies a response message to the source terminal to complete a transmission.

In summary, the above technical solution according to the present invention can achieve the following effects:

 (1) The communication protocol for communication between each terminal device is not strictly required. The access of the wireless sub-gateway makes data transmission simpler, and the system networking is simpler and more scalable.

 (2) Combining the wired access method with the wireless access method, making full use of the advantages of convenient wireless access, easy expansion, low cost, fast transmission speed of wired access, and high reliability.

 The above is only the embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. All modifications, equivalents, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Claims

Claim
A gateway device, which is provided in a smart Internet of Things system, wherein the gateway device comprises a bus interface module, which further comprises:
 a data receiving module, configured to receive data from a terminal device or from another gateway device; and a package processing module, configured to encapsulate data processed by the terminal device according to a format of a preset data frame;
 a decapsulation processing module, configured to decapsulate data from other gateway devices to obtain an original data frame;
 And a data sending module, configured to send data processed by the encapsulation processing module to a corresponding gateway device, or send data processed by the decapsulation processing module to a corresponding terminal device.
2. The gateway device of claim 1, further comprising a data monitoring module, further comprising:
 a monitoring module, configured to determine a priority level of burst data in the presence of burst data; a comparison module, configured to compare a priority level of the burst data with a priority level of the current communication data;
 The control module is configured to: if the priority level of the burst data is higher than the priority level of the current communication data, suspend the current communication, preferentially send the burst data, and resume the previously suspended communication after the burst data is sent; if the priority of the burst data is equal to Or lower than the priority level of the current communication data, the current communication is continued, and the channel is reserved for the burst data, and the burst data is sent after the current communication ends.
3. The gateway device according to claim 1, further comprising:
 An address allocation module, configured to allocate an IP address to the terminal device in advance.
The gateway device according to claim 3, wherein the data receiving module comprises:
a wireless receiving module, configured to receive data from the wireless terminal device through a wireless interface; a wired receiving module, configured to receive data from the wired terminal device through a wired interface; and a system bus interface module, configured to receive data from other gateway devices.
The gateway device according to claim 4, wherein the wireless interface comprises at least one of the following: a wireless fidelity interface, a radio frequency interface, an infrared interface, and a Bluetooth interface.
The gateway device according to claim 4, wherein the data sending module comprises:
 a first sending module, configured to send data processed by the encapsulation processing module to a corresponding gateway device;
 And a second sending module, configured to send data processed by the decapsulation processing module to the corresponding terminal device.
The gateway device according to claim 1, wherein the gateway device further comprises:
 The power module is configured to supply power to the data receiving module, the encapsulation processing module, the decapsulation processing module, the data sending module, and the data monitoring module.
A smart Internet of Things system, comprising a general gateway device, characterized by further comprising: the gateway device according to any one of claims 1 to 7.
9. An intelligent building comprising a building body and a smart internet of things system disposed on the building body, wherein the smart internet of things system is the smart internet of claim system of claim 8.
10. A hybrid access method for an intelligent Internet of Things, characterized by comprising:
 Receiving data from terminal devices or from other gateway devices;
 The data from the terminal device is encapsulated according to the format of the preset data frame, or the data of other gateway devices is decapsulated in the future to obtain the original data frame;
The encapsulated data is sent to the corresponding gateway device, or the decapsulated data is sent to the corresponding terminal device.
The method according to claim 10, further comprising: determining a priority level of burst data in the presence of burst data;
 Compare the priority level of the burst data with the priority level of the current communication data; if the priority level of the burst data is higher than the priority level of the current communication data, suspend the current communication, preferentially send the burst data, and wait until the burst data is sent and then resume Suspended communication; if the priority level of the burst data is equal to or lower than the priority level of the current communication data, the current communication is continued, and the channel is reserved for the burst data, and the burst data is sent after the current communication ends.
The method according to claim 10, wherein before the receiving data from the terminal device or from other gateway devices, the method further includes:
 The terminal device is assigned an IP address in advance.
The method according to claim 10, wherein the receiving data from the terminal device or from other gateway devices comprises:
 Receiving data from the wireless terminal device through the wireless interface;
 Receiving data from a wired terminal device through a wired interface;
 Receive data from other gateway devices.
The method according to claim 13, wherein the wireless interface comprises at least one of: a wireless fidelity interface, a radio frequency interface, an infrared interface, and a Bluetooth interface.
PCT/CN2011/085078 2011-09-22 2011-12-30 Gateway device, intelligent internet of things system and hybrid access method thereof WO2013040844A1 (en)

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