CN103176467A - 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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- 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
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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
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- 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
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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 the 6LoWPAN technology and a kind of UDP packet sending and receiving method based on the 6LoWPAN technology.
Background technology
Smart Home is used technology of Internet of things, with various equipment (such as household electrical appliance and Household security protection device etc.) relevant to information in family by bussing technique be connected to concentrate on an intellectualizing system server, network supervise and manage.
House intelligentized system is all being carried out energetically in now a lot of countries and regions, such as Samsung after the Spring Festival in 2003, beginning in, Korea Spro two countries release its intelligent domestic system simultaneously, by set-top box and network, with household control 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.
Domestic research to intelligent domestic system also is in the starting stage, and 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 at present.The Zigbee agreement 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 present most Internet of Things is all to increase gsm module by main control end to send, receive note, perhaps on the IPv4 protocol basis, realizes the remote interaction with the user.The limitation of doing like this is clearly: along with internet development at full speed so for many years, the IPv4 address is exhausted, because only considering, IPv4 is each host computer distributing IP address, the whole world at the beginning of design, if be home appliance, unique ip address of monitoring sensor distribution of global every family, be almost impossible.
yet, IPv6 has abundant address resource, and support dynamic routing mechanism etc., can the satisfying magnanimity wireless sensor node to communication network in the address, all many-sided requirements such as self-organization of network and extendability, IETF(Internet Engineering Task Force) 6LoWPAN working group (The IPv6in Low-Power Wireless Personal Area Networks Working Group) is devoted to solve the problem how the IPv6 agreement realizes on the IEEE802.15.4 standard, the draft RFC4944 of working group's issue has illustrated problem how to transmit the IPv6 message on the IEEE802.15.4 network.The present invention is applied to existing 6LoWPAN technology on intelligent domestic system, solves the problem of IP address exhaustion.
Summary of the invention
The present invention will solve existing intelligent domestic system based on technology of Internet of things owing to using the IPv4 address, exhausted and the problem can't large-scale promotion used in IP address can appear and how in the real-time Transmission problem of the technical UDP of the realization message of 6LoWPAN, thereby a kind of intelligent domestic system based on the 6LoWPAN technology and a kind of UDP packet sending and receiving method based on the 6LoWPAN technology are provided, can be divided into monitor terminal, the star-like communication network of 6LoWPAN and system server three parts based on the intelligent domestic system of 6LoWPAN technology;
Monitor terminal comprises ATmega128 single-chip microcomputer, several sensors, power circuit, clock circuit, LCD liquid crystal display, RFID radio-frequency (RF) identification subsystem and the electric equipment control subsystem with the JTAG debugging interface;
Wherein, several sensors in monitor terminal are connected the I/O mouth and are connected with the ATmega128 single-chip microcomputer with the electric equipment control subsystem; RFID radio-frequency (RF) identification subsystem is connected with the ATmega128 single-chip microcomputer with serial ports UART2; Power circuit, clock circuit and LCD liquid crystal display are connected and are connected with the ATmega128 single-chip microcomputer;
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 the 6LoWPAN Centroid by Radio Link; The 6LoWPan Centroid is also simultaneously the edge router in the IPv6 network, other IPv6 router wired connections in this edge router and network; IPv6 router and Internet network wired connection are with the mobile communications network wireless connections; Computer, intelligent terminal and the Internet network is wired or wireless is connected, mobile phone and mobile communications network wireless connections;
System server comprises the ARM9 embedded platform, touch-screen of configuration on this platform hardware, embedded Web Server of configuration on software;
Monitor terminal is connected with several 6LoWPAN child nodes of the star-like communication network of 6LoWPAN with serial ports UART1; The Centroid of the star-like communication network of 6LoWPAN also is connected by serial mode with the ARM9 embedded platform of system server;
UDP packet sending and receiving method under the 6LoWPAN agreement comprises: UDP message receiving course and UDP message process of transmitting;
UDP message receiving course under the 6LoWPAN agreement as shown in Figure 7,
After A1,6LoWPAN Centroid or child node receive the IEEE802.15.4 packet, after processing by the mac frame of IEEE802.15.4, completing message by the 6LoWPAN adaptation layer processes: at first adaptation layer judges whether ipv6 header has adopted the HC1 compression coding, if after determining that ipv6 header has adopted the HC1 compression coding, just carry out the ipv6 header decompression, otherwise just do non-decompression;
A2, the present invention adopt the UDP message transmissions, if after determining that UDP header has adopted the HC2 mode to compress, packet will carry out the UDP header decompression, otherwise carry out non-decompression;
A3, submit to concrete application program by UDP input processing function and do further processing.
UDP message process of transmitting under the 6LoWPAN agreement as shown in Figure 8,
B1, judge whether UDP header is compressed, if it is carry out the UDP header compression and process, process otherwise carry out non-compression;
B2, UDP message carry out the filling of ipv6 header after filling is complete, be also to judge first whether ipv6 header is compressed, if it is carry out the ipv6 header compression and process, and process otherwise carry out non-compression;
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 is realized localized Centralized Monitoring: system server allows the user carry out the Centralized Monitoring management to intelligent domestic system by gui interface, and possesses the hardware alarms function for the user provides the Qt gui interface; Realize remote monitoring: 6LoWPAN communication network and Internet interconnect, and configure Web server and develop web application on the server hardware platform, thereby allowing the user can pass through the mode remote access Smart Home of website visiting.
The present invention includes following beneficial effect:
1, by using the 6LoWPAN technology, realized that present intelligent domestic system faces the breakthrough of IPv4 resource address, application problem that can't the large-scale promotion intelligent domestic system;
2, monitor terminal namely can carry various sensor on the market, realizes the monitoring room temperature, fire prevention, antitheft, prevent the function such as combustible gas leakage, the function that also can realize swiping the card gate inhibition and electric switch are controlled;
3, realized the real-time Transmission of intelligent domestic system UDP message based on the 6LoWPAN technology;
4, system server is used for localized centralized control and Long-distance Control.
Description of drawings
Fig. 1 is the 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 end-to-end transmitted in both directions UDP message of the star-like communication network of 6LoWPAN message schematic diagram; Fig. 7 is the UDP message receiving course process flow diagram under the 6LoWPAN agreement; Fig. 8 is the UDP message process of transmitting process flow diagram under the 6LoWPAN agreement;
Embodiment
Embodiment one: in conjunction with Fig. 1, this embodiment is described, in Fig. 1,1 is master bedroom, and 2 is secondary room, and 3 is the parlor, and 4 is the kitchen, and 5 is the toilet, and 6 is balcony, in figure
Be the 6LoWPAN Centroid,
Be the 6LoWPAN child node,
Be monitor terminal,
Be system server,
Be Radio Link; A kind of intelligent domestic system based on the 6LoWPAN technology can be divided into monitor terminal, the star-like communication network of 6LoWPAN and system server three parts, sees Fig. 2, wherein 1 is the 6LoWPAN Centroid, 2 is the 6LoWPAN child node, and 3 is the internet network, and 4 is mobile communications network;
Monitor terminal comprises ATmega128 single-chip microcomputer, several sensors, power circuit, clock circuit, LCD liquid crystal display, RFID radio-frequency (RF) identification subsystem and the electric equipment control subsystem with the JTAG debugging interface;
Wherein, several sensors in monitor terminal are connected the I/O mouth and are connected with the ATmega128 single-chip microcomputer with the electric equipment control subsystem; RFID radio-frequency (RF) identification subsystem is connected with the ATmega128 single-chip microcomputer with serial ports UART2; Power circuit, clock circuit and LCD liquid crystal display are connected and are connected with the ATmega128 single-chip microcomputer, 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 the 6LoWPAN Centroid by Radio Link; The 6LoWPan Centroid is also simultaneously the edge router in the IPv6 network, other IPv6 router wired connections in this edge router and network; IPv6 router and Internet network wired connection are with the mobile communications network wireless connections; Computer, intelligent terminal and the Internet network is wired or wireless is connected, mobile phone and mobile communications network wireless connections;
System server comprises the ARM9 embedded platform, touch-screen of configuration on this platform hardware, embedded Web Server of configuration on software;
Monitor terminal is connected with several 6LoWPAN child nodes of the star-like communication network of 6LoWPAN with serial ports UART1; The Centroid of the star-like communication network of 6LoWPAN also is connected by serial mode with the ARM9 embedded platform of system server;
The operating process of monitor terminal is as follows:
The ATmega128 single-chip microcomputer is by the power circuit turn-on current, after the single-chip microcomputer initialization, begin to obtain the electric equipment state from the electric equipment control signal of last time, inquire about again each sensor states, obtain parameter, they are kept in the array of specific format, then call serial ports UART1 and send program, by the mode of regularly inquiring about, electric equipment state, sensing data are sent to Centroid; The electric equipment control signal that monitor terminal receiving center node is sent; Monitor terminal is pressed the break-make that the electric equipment control signal is carried out 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 be controlled and open the door/close the door;
The star-like communication network of 6LoWPAN realizes that the process of remote monitoring is as follows:
The star-like communication network architecture of 6LoWPAN as shown in the figure, wherein 1 is the 6LoWPAN Centroid, 2 is the 6LoWPAN child node, 3 is the IPv6 router, 4 is the 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, the 6LoWPAN child node just can be by between 6LoWPAN Centroid and external IP v6 network node, realize two-way communication end to end, under the UDP/IPv6/6LoWPAN/IEEE802.15.4 agreement was 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 adopt transmitted in both directions UDP message message, the present invention is on the basis of RFC4944 draft, on the hardware platform based on the CC2430 radio frequency chip, transplant the TinyOS embedded OS of increasing income, independently adopt the NesC Programming with Pascal Language to realize one in accordance with the UDP message transmissions program of 6LoWPAN agreement;
UDP packet sending and receiving method under the 6LoWPAN agreement comprises: UDP message receiving course and UDP message process of transmitting;
UDP message receiving course under the 6LoWPAN agreement as shown in Figure 7, TinyOS system triggers receive event signal, show that 6LoWPAN Centroid or child node receive the IEEE802.15.4 packet, be exactly specifically to send receive () signal by the Receive interface of the assembly ActiveMessageC of TinyOS; The IEEE802.15.4MAC layer is processed function mac_process () can do further processing to the mac frame that receives, this function of plurality of optional header for the 6LoWPAN protocol definition can both be processed, and message fragment and recombination function are also to be realized by this function in addition; This intelligent domestic system, application layer load byte number is less, need not that therefore message is carried out burst and processes with restructuring; After determining message fragment and restructuring and carrying out corresponding function, adaptation layer is processed function adapt_process () can judge by the Dispatch field before ipv6 header whether ipv6 header has adopted the HC1 compression coding; After determining that ipv6 header has adopted the HC1 compression coding, it will be passed to ipv6_header_compressed () function processes, and processes otherwise the data payload of ipv6 header back will be passed to ipv6_header_uncompressed () function; At first judge whether header is compressed, if header is compressed, thereby just reducing corresponding data field completes decompressing function; Difference according to the value in Next Header territory in ipv6 header, determine it is any transport layer protocol that adopts in UDP, TCP, ICMP, need in this programme to complete the UDP message transmissions, called function udp_header_uncompressed () or udp_header_compressed () for the treatment of the udp agreement; After determining that UDP header has adopted the HC2 mode to compress, packet will be given udp_header_compressed () function and process, and the UDP message Bao Ze of uncompressed completes processing by udp_header_uncompressed () function; UDP input processing function is completed the function of two aspects: complete verifying function according to checksum field; Whether the UDP message bag that judgement receives needs to give concrete application program UDPProc example is done further processing; When sending to this example, application program can receive that the UDPProc interface sends receive () signal, and then application program is done further processing to the packet that receives;
UDP message process of transmitting under the 6LoWPAN agreement as shown in Figure 8, application program will be called send () or the sendDone () of UDPProc () interface, thereby call the UDP output function; The transmission program of UDP message and the reception program of UDP message are opposite processing procedures, and thought is basically identical; At first judge whether UDP header is compressed, the UDP message compression is given udp_header2_compressed () and is processed, otherwise giving udp_header2_uncompressed () processes, the UDP message is after filling is complete, carry out the filling of ipv6 header, complete after message is filled, complete packet to be added in the sendTask schedule of tasks and send, so-called schedule of tasks is exactly a formation in essence, complete function by sendTask () function, first packet during operation in its meeting processing queue; If the size of this message surpasses the length of a frame, this function will add correct slice header in this bag so, and will be the same with UDP message reception program, need not burst in the present invention;
System server is realized localized Centralized Monitoring: system server allows the user carry out the Centralized Monitoring management to intelligent domestic system by gui interface, and possesses the hardware alarms function for the user provides the Qt gui interface; Realize remote monitoring: 6LoWPAN communication network and Internet interconnect, and configure Web server and develop web application on the server hardware platform, thereby allowing the user can pass through the mode remote access Smart Home of website visiting.
The present invention includes following beneficial effect:
1, by using the 6LoWPAN technology, solve present intelligent domestic system and face the breakthrough of IPv4 resource address, application problem that can't the large-scale promotion intelligent domestic system;
2, monitor terminal namely can carry various sensor on the market, realizes the monitoring room temperature, fire prevention, antitheft, prevent the function such as combustible gas leakage, the function that also can realize swiping the card gate inhibition and electric switch are controlled;
3, realized the real-time Transmission of intelligent domestic system UDP message based on the 6LoWPAN technology;
4, system server is used for localized centralized control and Long-distance Control.
Embodiment two: present embodiment is that several sensors in monitor terminal are humiture integrative sensor, combustible gas sensor, flame sensor, infrared sensor of the human body and sound transducer to the further illustrating of embodiment one; JTAG debugging interface in monitor terminal is used for to ATmega128 single-chip microcomputer input application program.
Embodiment three: present embodiment is to the further illustrating of embodiment one, and 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, linux system of ARM9 embedded platform configuration of system server, and develop a Qt graphical user interface program, make the user can see the data that each child node transmits on touch-screen and control the facility switching of each child node, the Website server program is write with the Ajax+CGI+HTML technology in backstage at linux system, allows the user realize aforesaid operations to system server by mobile terminal.
Embodiment five: present embodiment is that described mobile terminal is mobile phone and panel computer to the further illustrating of embodiment four.
Embodiment six: the UDP packet sending and receiving method based on the 6LoWPAN technology comprises: UDP message receiving course and UDP message process of transmitting;
UDP message receiving course under the 6LoWPAN agreement:
After A1,6LoWPAN Centroid or child node receive the IEEE802.15.4 packet, after processing by the mac frame of IEEE802.15.4, completing message by the 6LoWPAN adaptation layer processes: at first adaptation layer judges whether ipv6 header has adopted the HC1 compression coding, if after determining that ipv6 header has adopted the HC1 compression coding, just carry out the ipv6 header decompression, otherwise just do non-decompression;
A2, the present invention adopt the UDP message transmissions, if after determining that UDP header has adopted the HC2 mode to compress, packet will carry out the UDP header decompression, otherwise carry out non-decompression;
A3, submit to concrete application program by UDP input processing function and do further processing;
UDP message process of transmitting under the 6LoWPAN agreement:
B1, judge whether UDP header is compressed, if it is carry out the UDP header compression and process, process otherwise carry out non-compression;
B2, UDP message carry out the filling of ipv6 header after filling is complete, be also to judge first whether ipv6 header is compressed, if it is carry out the ipv6 header compression and process, and process otherwise carry out non-compression;
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 (6)
1. based on the intelligent domestic system of 6LoWPAN technology, it is characterized in that to be divided into monitor terminal, the star-like communication network of 6LoWPAN and system server three parts based on the intelligent domestic system of 6LoWPAN technology;
Monitor terminal comprises ATmega128 single-chip microcomputer, several sensors, power circuit, clock circuit, LCD liquid crystal display, RFID radio-frequency (RF) identification subsystem and the electric equipment control subsystem with the JTAG debugging interface;
Wherein, several sensors in monitor terminal are connected the I/O mouth and are connected with the ATmega128 single-chip microcomputer with the electric equipment control subsystem; RFID radio-frequency (RF) identification subsystem is connected with the ATmega128 single-chip microcomputer with serial ports UART2; Power circuit, clock circuit and LCD liquid crystal display are connected and are connected with the ATmega128 single-chip microcomputer;
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 the 6LoWPAN Centroid by Radio Link; The 6LoWPan Centroid is also simultaneously the edge router in the IPv6 network, other IPv6 router wired connections in this edge router and network; IPv6 router and Internet network wired connection are with the mobile communications network wireless connections; Computer, intelligent terminal and the Internet network is wired or wireless is connected, mobile phone and mobile communications network wireless connections;
System server comprises the ARM9 embedded platform, touch-screen of configuration on this platform hardware, embedded Web Server of configuration on software;
Monitor terminal is connected with several 6LoWPAN child nodes of the star-like communication network of 6LoWPAN with serial ports UART1; The Centroid of the star-like communication network of 6LoWPAN also is connected by serial mode with the ARM9 embedded platform of system server;
2. the intelligent domestic system based on the 6LoWPAN technology as claimed in claim 1, 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 to ATmega128 single-chip microcomputer input application program.
3. the intelligent domestic system based on the 6LoWPAN technology as claimed in claim 1, 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 claim 1,2 or 3 described intelligent domestic systems based on the 6LoWPAN technology, the linux system of ARM9 embedded platform configuration that it is characterized in that system server, and develop a Qt graphical user interface program, make the user can see the data that each child node transmits on touch-screen and control the facility switching of each child node, the Website server program is write with the Ajax+CGI+HTML technology in backstage at linux system, allows the user realize aforesaid operations to system server by mobile terminal.
5. the intelligent domestic system based on the 6LoWPAN technology as claimed in claim 4, is characterized in that described mobile terminal is mobile phone and panel computer.
6. based on the UDP packet sending and receiving method of 6LoWPAN technology, it is characterized in that the method comprises: UDP message receiving course and UDP message process of transmitting;
UDP message receiving course under the 6LoWPAN agreement:
After A1,6LoWPAN Centroid or child node receive the IEEE802.15.4 packet, after processing by the mac frame of IEEE802.15.4, completing message by the 6LoWPAN adaptation layer processes: at first adaptation layer judges whether ipv6 header has adopted the HC1 compression coding, if after determining that ipv6 header has adopted the HC1 compression coding, just carry out the ipv6 header decompression, otherwise just do non-decompression;
A2, the present invention adopt the UDP message transmissions, if after determining that UDP header has adopted the HC2 mode to compress, packet will carry out the UDP header decompression, otherwise carry out non-decompression;
A3, submit to concrete application program by UDP input processing function and do further processing;
UDP message process of transmitting under the 6LoWPAN agreement:
B1, judge whether UDP header is compressed, if it is carry out the UDP header compression and process, process otherwise carry out non-compression;
B2, UDP message carry out the filling of ipv6 header after filling is complete, be also to judge first whether ipv6 header is compressed, if it is carry out the ipv6 header compression and process, and process otherwise carry out non-compression;
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.
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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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