CN103176467B - Intelligent housing system based on 6LoWPAN (IPv6 Low-Power Wireless Personal Area Network) technology and user datagram protocol (UDP) message transceiving method based on 6LoWPAN technology - Google Patents
Intelligent housing system based on 6LoWPAN (IPv6 Low-Power Wireless Personal Area Network) technology and user datagram protocol (UDP) message transceiving method based on 6LoWPAN technology Download PDFInfo
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- CN103176467B CN103176467B CN201310112862.9A CN201310112862A CN103176467B CN 103176467 B CN103176467 B CN 103176467B CN 201310112862 A CN201310112862 A CN 201310112862A CN 103176467 B CN103176467 B CN 103176467B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention relates to an intelligent housing system based on a 6LoWPAN (IPv6 Low-Power Wireless Personal Area Network) technology and a user datagram protocol (UDP) message transceiving method based on the 6LoWPAN technology, which aim to solve the problem that IP addresses are exhausted and the intelligent housing system cannot be popularized and applied in a large scale because IPv4 addresses are used in a conventional intelligent housing system based on an internet-of-things technology, and the problem that the conventional intelligent housing system cannot realize real-time transmission of UDP messages. The intelligent housing system based on the 6LoWPAN technology can be divided into three parts, namely a monitoring terminal, a 6LoWPAN star communication network and a system server. The UDP message transceiving method based on the 6LoWPAN technology comprises a UDP message receiving process and a UDP message transmitting process. The method can be applied to the intelligent housing system.
Description
Technical field
The present invention relates to a kind of intelligent domestic system based on 6LoWPAN technology and a kind of UDP packet sending and receiving method based on 6LoWPAN technology.
Background technology
Smart Home application technology of Internet of things, by the equipment relevant to information (such as household electrical appliance and Household security protection device etc.) various in family by bussing technique be connected to an intellectualizing system server carries out concentrate, the supervising and manage of networking.
House intelligentized system is all being carried out energetically in a lot of countries and regions now, such as Samsung is after the Spring Festival in 2003, start in, Korea Spro two countries release its intelligent domestic system simultaneously, by Set Top Box and network, household is controlled automatically, information household appliances, security device and amusement and information center this four partly integrated be one comprehensively, towards the home control network of broadband internet.
The domestic research to intelligent domestic system is also in the starting stage, and at present based on the intelligent domestic system of technology of Internet of things, great majority are that ZigBee technology on probation is as Data Transport Protocol.Zigbee protocol is used widely on Internet of Things as the popular protocol of wireless sensor network, as agricultural monitoring, and tele-medicine, Smart Home etc.And the application of current most Internet of Things, be all increase gsm module by main control end to send, receive note, or on IPv4 protocol basis, realize the remote interaction with user.The limitation done like this is clearly: along with the development that internet is at full speed so for many years, IPv4 address is exhausted, because IPv4 only considers as each host computer distributing IP address, the whole world at the beginning of design, if will for the home appliance of global every family, monitoring sensor distributes a unique ip address, is almost impossible.
But, IPv6 has abundant address resource, and support Dynamic routing mechanisms etc., can satisfying magnanimity wireless sensor node to communication network in address, all many-sided requirements such as self-organization of network and extendability, IETF(Internet EngineeringTask Force) 6LoWPAN working group (The IPv6in Low-Power Wireless Personal Area NetworksWorking Group) be devoted to solve the problem how IPv6 agreement to realize in IEEE802.15.4 standard, the draft RFC4944 that working group issues describes the problem how transmitting IPv6 message on IEEE802.15.4 network.Existing 6LoWPAN technology is applied on intelligent domestic system by the present invention, solves the problem of IP address exhaustion.
Summary of the invention
The present invention will solve the existing intelligent domestic system based on technology of Internet of things owing to using IPv4 address, there will be IP address exhaustion and cannot the problem that uses of large-scale promotion and the real-time Transmission problem that how technically realizes UDP message at 6LoWPAN, thus a kind of intelligent domestic system based on 6LoWPAN technology and a kind of UDP packet sending and receiving method based on 6LoWPAN technology are provided, the intelligent domestic system based on 6LoWPAN technology can be divided into the star-like communication network of monitor terminal, 6LoWPAN and system server three part;
Monitor terminal comprises with the ATmega128 single-chip microcomputer of JTAG debugging interface, several sensors, power circuit, clock circuit, LCD liquid crystal display, RFID radio-frequency (RF) identification subsystem and electric equipment control subsystem;
Wherein, several sensors in monitor terminal are connected with ATmega128 single-chip microcomputer with I/O mouth with electric equipment control subsystem; RFID radio-frequency (RF) identification subsystem is connected with ATmega128 single-chip microcomputer with serial ports UART2; Power circuit, clock circuit are directly connected with ATmega128 single-chip microcomputer with LCD liquid crystal display;
The star-like communication network of 6LoWPAN comprises 6LoWPAN Centroid, several 6LoWPAN child nodes, IPv6 router, Internet and/or mobile communications network, computer, intelligent terminal and/or mobile phone;
Wherein, in the star-like communication network of 6LoWPAN, several 6LoWPAN child nodes are connected with 6LoWPAN Centroid by wireless link; 6LoWPan Centroid is also simultaneously the edge router in IPv6 network, other IPv6 router wired connections in this edge router and network; IPv6 router and Internet network wired connection, with mobile communications network wireless connections; Computer, intelligent terminal are connected with Internet network is wired or wireless, mobile phone and mobile communications network wireless connections;
System server comprises ARM9 embedded platform, and this platform hardware configures a touch-screen, and software configures an embedded Web Server;
Monitor terminal connects with several 6LoWPAN child nodes of the star-like communication network of serial ports UART1 and 6LoWPAN; The Centroid of the star-like communication network of 6LoWPAN is also connected by serial mode with the ARM9 embedded platform of system server;
UDP packet sending and receiving method under 6LoWPAN agreement comprises: UDP message receiving course and UDP message process of transmitting;
UDP message receiving course under 6LoWPAN agreement as shown in Figure 7,
After A1,6LoWPAN Centroid or child node receive IEEE802.15.4 packet, after mac frame process by IEEE802.15.4, Message processing is completed: first adaptation layer judges whether ipv6 header have employed HC1 compression coding by 6LoWPAN adaptation layer, if after determining that ipv6 header have employed HC1 compression coding, just carry out ipv6 header decompression, otherwise just do non-decompression;
A2, the present invention adopt UDP message transmission, if determine that UDP header have employed after HC2 mode compresses, packet will carry out UDP header decompression, otherwise carry out non-decompression;
A3, submit to concrete application program by UDP input processing function and do further process.
UDP message process of transmitting under 6LoWPAN agreement as shown in Figure 8,
B1, judge whether UDP header is compressed, if it is carry out UDP header compression process, otherwise carry out uncompressed process;
B2, UDP message is after filling, and carrying out the filling of ipv6 header, is also first judge whether ipv6 header is compressed, and if it is carries out ipv6 header compression process, otherwise carries out uncompressed process;
B3, complete after message is filled complete packet to be added in schedule of tasks and send, just data frame transfer has been arrived the mac frame of IEEE802.15.4.
System server realizes localized Centralized Monitoring: system server provides Qt gui interface for user, allows user can carry out Centralized Monitoring management by gui interface to intelligent domestic system, and possesses hardware alarms function; Realize remote monitoring: 6LoWPAN communication network and Internet interconnect, and server hardware platform configures Web server and develops web application, thus allow user can by the mode remote access Smart Home of website visiting.
The present invention includes following beneficial effect:
1, by using 6LoWPAN technology, achieving current intelligent domestic system and facing the breakthrough of IPv4 resource address, cannot the application problem of large-scale promotion intelligent domestic system;
2, namely monitor terminal can carry various sensor on the market, realizes monitoring room temperature, fire prevention, antitheft, prevent the functions such as combustible gas leakage, the function that also can realize swiping the card gate inhibition and electric switch control;
3, the real-time Transmission of intelligent domestic system UDP message is achieved based on 6LoWPAN technology;
4, system server is used for localized centralized control and Long-distance Control.
Accompanying drawing explanation
Fig. 1 is intelligent domestic system schematic diagram; Fig. 2 is the intelligent domestic system network structure block diagram based on 6LoWPAN; Fig. 3 is intelligent domestic system monitor terminal structured flowchart; Fig. 4 is monitor terminal information acquisition and packet processing program process flow diagram; Fig. 5 is the star-like communication network architecture figure of 6LoWPAN; Fig. 6 is the star-like communication network of 6LoWPAN end-to-end transmitted in both directions UDP message message schematic diagram; Fig. 7 is the UDP message receiving course process flow diagram under 6LoWPAN agreement; Fig. 8 is the UDP message process of transmitting process flow diagram under 6LoWPAN agreement;
Embodiment
Embodiment one: composition graphs 1 illustrates this embodiment, in Fig. 1,1 is master bedroom, and 2 is secondary room, and 3 is parlor, and 4 is kitchen, and 5 is toilet, and 6 is balcony, in figure
for 6LoWPAN Centroid,
for 6LoWPAN child node,
for monitor terminal,
for system server,
for wireless link; Based on an intelligent domestic system for 6LoWPAN technology, the star-like communication network of monitor terminal, 6LoWPAN and system server three part can be divided into, see Fig. 2, wherein 1 is 6LoWPAN Centroid, 2 is 6LoWPAN child node, and 3 is internet, and 4 is mobile communications network;
Monitor terminal comprises with the ATmega128 single-chip microcomputer of JTAG debugging interface, several sensors, power circuit, clock circuit, LCD liquid crystal display, RFID radio-frequency (RF) identification subsystem and electric equipment control subsystem;
Wherein, several sensors in monitor terminal are connected with ATmega128 single-chip microcomputer with I/O mouth with electric equipment control subsystem; RFID radio-frequency (RF) identification subsystem is connected with ATmega128 single-chip microcomputer with serial ports UART2; Power circuit, clock circuit are directly connected with ATmega128 single-chip microcomputer with LCD liquid crystal display, see Fig. 3;
The star-like communication network of 6LoWPAN comprises 6LoWPAN Centroid, several 6LoWPAN child nodes, IPv6 router, Internet and/or mobile communications network, computer, intelligent terminal and/or mobile phone;
Wherein, in the star-like communication network of 6LoWPAN, several 6LoWPAN child nodes are connected with 6LoWPAN Centroid by wireless link; 6LoWPan Centroid is also simultaneously the edge router in IPv6 network, other IPv6 router wired connections in this edge router and network; IPv6 router and Internet network wired connection, with mobile communications network wireless connections; Computer, intelligent terminal are connected with Internet network is wired or wireless, mobile phone and mobile communications network wireless connections;
System server comprises ARM9 embedded platform, and this platform hardware configures a touch-screen, and software configures an embedded Web Server;
Monitor terminal connects with several 6LoWPAN child nodes of the star-like communication network of serial ports UART1 and 6LoWPAN; The Centroid of the star-like communication network of 6LoWPAN is also connected by serial mode with the ARM9 embedded platform of system server;
The operating process of monitor terminal is as follows:
ATmega128 single-chip microcomputer is by power circuit turn-on current, after single-chip microcomputer initialization, start to obtain electric equipment state from the electric equipment control signal of last time, inquire about each sensor states again, obtain parameter, they are kept in the array of specific format, then call serial ports UART1 transmission program, by the mode of timing inquiry, electric equipment state, sensing data are sent to Centroid; The electric equipment control signal that monitor terminal receiving center node is sent; Monitor terminal presses the break-make that electric equipment control signal performs electric equipment, and the identity information that RFID radio-frequency (RF) identification subsystem collects obtains the checking of system server, and Centroid also can receive an enabling signal, and monitor terminal can control to open the door/close the door;
The process that the star-like communication network of 6LoWPAN realizes remote monitoring is as follows:
The star-like communication network architecture of 6LoWPAN as shown in the figure, wherein 1 is 6LoWPAN Centroid, 2 is 6LoWPAN child node, 3 is IPv6 router, 4 is IPv6 terminal, 6LoWPAN network internal all-network node has an identical IPv6 address prefix, and child node is interconnected by 6LoWPAN Centroid and other IPv6 networks;
Under this network architecture, 6LoWPAN child node just can by between 6LoWPAN Centroid and external IP v6 network node, realize two-way communication end to end, under UDP/IPv6/6LoWPAN/IEEE802.15.4 agreement is supported, the process of transmitted in both directions UDP message message as shown in the figure;
Because intelligent domestic system is real-time system, higher to requirement of real-time, therefore transmitted in both directions UDP message message is adopted, the present invention is on the basis of RFC4944 draft, on the hardware platform based on CC2430 radio frequency chip, transplant TinyOS to increase income embedded OS, independently adopt NesC Programming with Pascal Language to realize a UDP message transmission program in accordance with 6LoWPAN agreement;
UDP packet sending and receiving method under 6LoWPAN agreement comprises: UDP message receiving course and UDP message process of transmitting;
UDP message receiving course under 6LoWPAN agreement as shown in Figure 7, TinyOS system triggers receive event signal, show that 6LoWPAN Centroid or child node receive IEEE802.15.4 packet, send receive () signal by the Receive interface of the assembly ActiveMessageC of TinyOS exactly specifically; IEEE802.15.4MAC layer process function mac_process () can do further process to the mac frame received, this function of plurality of optional header for the definition of 6LoWPAN agreement can both process, and message fragment and recombination function are also realized by this function in addition; This intelligent domestic system, application layer load bytes number is less, therefore processes with restructuring without the need to carrying out burst to message; Determine message fragment and restructuring and after performing corresponding function, by the Dispatch field before ipv6 header, adaptation layer process function adapt_process () can judge whether ipv6 header have employed HC1 compression coding; After determining that ipv6 header have employed HC1 compression coding, it will be passed to ipv6_header_compressed () function and process, otherwise ipv6 header data payload below will be passed to the process of ipv6_header_uncompressed () function; First judge whether header is compressed, if header is compressed, just reduce corresponding data field thus complete decompressing function; According to the difference of the value in Next Header territory in ipv6 header, determine it is adopt any transport layer protocol in UDP, TCP, ICMP, need UDP message transmission in this programme, have invoked function udp_header_uncompressed () or udp_header_compressed () for the treatment of udp agreement; Determine that UDP header have employed after HC2 mode compresses, packet will give the process of udp_header_compressed () function, and the UDP message Bao Ze of uncompressed completes process by udp_header_uncompressed () function; UDP input processing function completes the function of two aspects: complete verifying function according to checksum field; Judge that the UDP message bag received does further process the need of giving concrete application program UDPProc example; When being sent to this example, application program can receive UDPProc interface and send receive () signal, and then application program does further process to the packet received;
As shown in Figure 8, application program will call send () or the sendDone () of UDPProc () interface to UDP message process of transmitting under 6LoWPAN agreement, thus call UDP output function; The transmission program of UDP message is contrary processing procedure with the reception program of UDP message, and thought is basically identical; First judge whether UDP header is compressed, UDP message compression then gives udp_header2_compressed () process, otherwise give udp_header2_uncompressed () process, UDP message is after filling, then carry out the filling of ipv6 header, after completing message filling, complete packet is added in sendTask schedule of tasks and send, so-called schedule of tasks is exactly a queue in essence, function is completed, first packet during operation in its meeting processing queue by sendTask () function; If the size of this message is more than the length of a frame, so this function adds correct slice header by this bag, the same with UDP message reception program, without the need to burst in the present invention;
System server realizes localized Centralized Monitoring: system server provides Qt gui interface for user, allows user can carry out Centralized Monitoring management by gui interface to intelligent domestic system, and possesses hardware alarms function; Realize remote monitoring: 6LoWPAN communication network and Internet interconnect, and server hardware platform configures Web server and develops web application, thus allow user can by the mode remote access Smart Home of website visiting.
The present invention includes following beneficial effect:
1, by using 6LoWPAN technology, solving current intelligent domestic system and facing the breakthrough of IPv4 resource address, cannot the application problem of large-scale promotion intelligent domestic system;
2, namely monitor terminal can carry various sensor on the market, realizes monitoring room temperature, fire prevention, antitheft, prevent the functions such as combustible gas leakage, the function that also can realize swiping the card gate inhibition and electric switch control;
3, the real-time Transmission of intelligent domestic system UDP message is achieved based on 6LoWPAN technology;
4, system server is used for localized centralized control and Long-distance Control.
Embodiment two: present embodiment is further illustrating embodiment one, several sensors in monitor terminal are humiture integrative sensor, combustible gas sensor, flame sensor, infrared sensor of the human body and sound transducer; JTAG debugging interface in monitor terminal is used for ATmega128 single-chip microcomputer input application program.
Embodiment three: present embodiment is further illustrating embodiment one, the ATmega128 single-chip microcomputer in monitor terminal is connected with RFID radio-frequency (RF) identification subsystem in the mode of interrupting.
Embodiment four: present embodiment is further illustrating embodiment one, the ARM9 embedded platform of system server configures a linux system, and develop a Qt graphical user interface program, make user can see the data that each child node transmits on the touchscreen and control the facility switching of each child node, write Website server program in the backstage Ajax+CGI+HTML technology of linux system, allow user realize the aforesaid operations to system server by mobile terminal.
Embodiment five: present embodiment is further illustrating embodiment four, described mobile terminal is mobile phone and panel computer.
Embodiment six: based on the UDP packet sending and receiving method of 6LoWPAN technology, comprising: UDP message receiving course and UDP message process of transmitting;
UDP message receiving course under 6LoWPAN agreement:
After A1,6LoWPAN Centroid or child node receive IEEE802.15.4 packet, after mac frame process by IEEE802.15.4, Message processing is completed: first adaptation layer judges whether ipv6 header have employed HC1 compression coding by 6LoWPAN adaptation layer, if after determining that ipv6 header have employed HC1 compression coding, just carry out ipv6 header decompression, otherwise just do non-decompression;
A2, the present invention adopt UDP message transmission, if determine that UDP header have employed after HC2 mode compresses, packet will carry out UDP header decompression, otherwise carry out non-decompression;
A3, submit to concrete application program by UDP input processing function and do further process;
UDP message process of transmitting under 6LoWPAN agreement:
B1, judge whether UDP header is compressed, if it is carry out UDP header compression process, otherwise carry out uncompressed process;
B2, UDP message is after filling, and carrying out the filling of ipv6 header, is also first judge whether ipv6 header is compressed, and if it is carries out ipv6 header compression process, otherwise carries out uncompressed process;
B3, complete after message is filled complete packet to be added in schedule of tasks and send, just data frame transfer has been arrived the mac frame of IEEE802.15.4.
Claims (4)
1., based on the intelligent domestic system of 6LoWPAN technology, the intelligent domestic system based on 6LoWPAN technology is divided into the star-like communication network of monitor terminal, 6LoWPAN and system server three part;
Monitor terminal comprises with the ATmega128 single-chip microcomputer of JTAG debugging interface, several sensors, power circuit, clock circuit, LCD liquid crystal display, RFID radio-frequency (RF) identification subsystem and electric equipment control subsystem;
Wherein, several sensors in monitor terminal are connected with ATmega128 single-chip microcomputer with I/O mouth with electric equipment control subsystem; RFID radio-frequency (RF) identification subsystem is connected with ATmega128 single-chip microcomputer with serial ports UART2; Power circuit, clock circuit are directly connected with ATmega128 single-chip microcomputer with LCD liquid crystal display;
The star-like communication network of 6LoWPAN comprises 6LoWPAN Centroid, several 6LoWPAN child nodes, IPv6 router, Internet and/or mobile communications network, computer, intelligent terminal;
Wherein, in the star-like communication network of 6LoWPAN, several 6LoWPAN child nodes are connected with 6LoWPAN Centroid by wireless link; 6LoWPAN Centroid is also simultaneously the edge router in IPv6 network, other IPv6 router wired connections in this edge router and network; IPv6 router and Internet network wired connection, with mobile communications network wireless connections; Computer, intelligent terminal are connected with Internet network is wired or wireless, mobile phone and mobile communications network wireless connections;
System server comprises ARM9 embedded platform, and this platform hardware configures a touch-screen, and software configures an embedded Web Server;
Monitor terminal connects with several 6LoWPAN child nodes of the star-like communication network of serial ports UART1 and 6LoWPAN; The Centroid of the star-like communication network of 6LoWPAN is also connected by serial mode with the ARM9 embedded platform of system server;
It is characterized in that: the ARM9 embedded platform of system server configures a linux system, and develop a Qt graphical user interface program, make user can see the data that each child node transmits on the touchscreen and control the facility switching of each child node, write Website server program in the backstage Ajax+CGI+HTML technology of linux system, allow user realize checking the data that each child node above-mentioned of system server transmits and controlling the facility switching of each child node above-mentioned by mobile terminal.
2., as claimed in claim 1 based on the intelligent domestic system of 6LoWPAN technology, it is characterized in that several sensors in monitor terminal are humiture integrative sensor, combustible gas sensor, flame sensor, infrared sensor of the human body and sound transducer; JTAG debugging interface in monitor terminal is used for ATmega128 single-chip microcomputer input application program.
3., as claimed in claim 1 based on the intelligent domestic system of 6LoWPAN technology, it is characterized in that the ATmega128 single-chip microcomputer in monitor terminal is connected with RFID radio-frequency (RF) identification subsystem in the mode of interrupting.
4., as claimed in claim 1 based on the intelligent domestic system of 6LoWPAN technology, it is characterized in that described mobile terminal is mobile phone and panel computer.
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| CN201310112862.9A CN103176467B (en) | 2013-04-02 | 2013-04-02 | Intelligent housing system based on 6LoWPAN (IPv6 Low-Power Wireless Personal Area Network) technology and user datagram protocol (UDP) message transceiving method based on 6LoWPAN technology |
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| CN104765277A (en) * | 2015-03-20 | 2015-07-08 | 华南理工大学 | Intelligent home system based on ARM9 chip and realization method |
| CN107395262A (en) * | 2016-05-14 | 2017-11-24 | 浙江微科机电有限公司 | A kind of repeater of the Internet of Things intelligent monitor system based on 6LowPAN agreements |
| CN111954280A (en) * | 2020-07-01 | 2020-11-17 | 佳源科技有限公司 | Broadband carrier and wireless dual-mode communication switching method, system and device |
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