CN102611646B - Data gateway of Internet of things based on ZigBee and XML (extensible markup language) - Google Patents
Data gateway of Internet of things based on ZigBee and XML (extensible markup language) Download PDFInfo
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Abstract
The invention relates to a data gateway of Internet of things based on ZigBee and XML (extensible markup language), which belongs to the technical field of electronic information of the Internet of things. The data gateway is characterized in that all wireless sensing nodes in the Internet of things are used for sending data to the gateway of the Internet of things in a real-time manner through the ZigBee, the data gateway is used for describing the received data by adopting the XML and storing the received data on an SD (secure digital) card of the data gateway, and the packed data is simultaneously forwarded to a connected network device through the ZigBee. When the data gateway is connected with a computer device through a USB (universal serial bus) 2.0 interface, a user can run data transfer software on the computer to transfer the data saved on the data gateway to the user computer. When a Btn-delete button on the data gateway is pressed, sensed data which is saved on the data gateway can be deleted. The data gateway disclosed by the invention adopts the XML to describe the sensed data, the user can conveniently share, transfer and transmit the data, and the sensed data can be simultaneously backed up in a real-time manner.
Description
Technical field
Electronic information field, for the method and apparatus of Internet of Things data acquisition, transmission and storage.
Background technology
Internet of Things comprises sensing layer, network layer, business and application layer.Sensing layer realize object information gathering, catch and identify; Network layer is carried out the transmission of information, comprises Access Network and core net; Business and application layer realize information processing and the application of Internet of Things.Existing Internet of things access equipment, in conjunction with conventional communication networks and sensor network, passes to perception data the computing equipment processing of far-end, does not possess the function of the local storage of data.In addition, the data of transmitting on network lack unified description mechanism and method for expressing, cannot realize sharing and consistent parsing of data.The present invention's design has the Internet of Things data gateway of the local storage of data, unloading and transmittability, and adopts the unified perception data of describing of XML, realizes sharing and consistent parsing of Internet of Things data.
Summary of the invention
Can not locally store perception data in order to overcome existing Internet of things access equipment, and perception data represents nonstandard problem.The present invention adopts the unified perception data of describing of XML, and design realizes the Internet of Things data gateway with the local storage of perception data, unloading and transmittability.
The invention is characterized in, contain: be located at ZigBee radio receiving transmitting module on Arduino development board, safe digital storage card SD card, delete button Btn_delete and three indicator lights of use, wherein:
Three indicator lights, are respectively status indicator lamp Led_status, delete indicator light Led_delete and unloading indicator light Led_copy;
ZigBee radio receiving transmitting module receives real-time sensing data by Zigbee protocol from each wireless sensing node of Internet of Things, sets following each request, frame format transmits and receive data;
The structure of wireless sensing node claim frame, contains: first first symbol, first length, first Frame and first 1 byte check character, wherein:
First first symbol is the first byte, is expressed as claim frame data;
First length is second and the 3rd byte, contains most significant byte MSB and least significant byte LSB;
First Frame, contain: the API identifier of nybble and the data Identifier_specific Data corresponding with API identifier, in the described data Identifier_specific Data corresponding with API identifier, contain: the frame identification Frame_ID0x01 of the 5th byte, 6th～13 bytes are the destination address of totally 64, 14th～15 bytes are the destination network addresses of totally 16, the 8th bit operator Options of the 16th byte and the radio frequency data of 17th～n byte, in described radio frequency data, include: wireless sensing node identifier Sensor_id, data type Data_type and date date, n is set point,
Wireless sensing node sends the structure of Frame, contains: second first symbol, second length, second Frame and second 1 byte check character, wherein:
Second first symbol is the first byte, is expressed as transmission Frame;
Second length is second and the 3rd byte, contains: most significant byte MSB and least significant byte LSB;
Second Frame, contain: the API identifier of nybble and the data Identifier_specific Data corresponding with API identifier, in the described data Identifier_specific Data corresponding with API identifier, contain: the frame identification Frame_ID of the 5th byte, the remote network address of 6th～7 bytes, the transmission retry number of times of the 8th byte, the route discovery state of the delivery status of the 9th byte and the 10th byte, wherein delivery status refers to: this Frame successfully transmits, do not receive, communication failure or removed one of four kinds of states identification data frame transmit status indicator, route discovery state refers to: the discovery situation mark of the routing state that Frame transport process calculates,
The structure of Internet of Things data gateway receiving data frames, contains:
The 3rd first symbol is the first byte, is expressed as ZigBee data gateway receiving data frames,
The 3rd length is second and the 3rd byte, contains: most significant byte MSB and least significant byte LSB,
The 3rd Frame, contain: the API identifier described in nybble and the data Identifier_specific Data corresponding with API identifier, the described data Identifier_specific Data corresponding with API identifier contains: 64 destination addresses of 5th～12 bytes, 16 destination network addresses of 13rd～14 bytes, the operator of the 15th byte, the radio frequency data of 16th～n byte, wherein, described radio frequency data contain: wireless sensing node mark Sensor_id, data type Data_type and data
Described ZigBee radio receiving transmitting module carries out collection, transmission and the storage of data successively according to the following steps:
Step (1), affiliated Arduino development board powers on, and described ZigBee radio receiving transmitting module is started working;
Step (2), described ZigBee radio receiving transmitting module accepts by Zigbee protocol the wireless sensing data that wireless sensing node sends described in each in real time;
The described ZigBee radio receiving transmitting module of step (3) is stored in the real-time hierarchical model with based on XML form of wireless sensing data receiving in described safe digital storage card SD card;
Step (4), detects whether there is operation requests, if do not have, returns to step (1); If have, judgement is to delete Delete request or unloading Copy request;
If the removal request that user triggers by described delete button Btn_delete,: status indicator lamp Led_status and deletion indicator light Led_delete are bright, delete the wirelessly transmitting data in described safe digital storage card SD, make its initialization, carry out and delete Delete operation, and judge that whether deletion is successful; If described status indicator lamp Led_status goes out, go out after 5 seconds and delete indicator light Led_delete time delay, represent to delete unsuccessful; If described status indicator lamp Led_status and deletion indicator light Led_delete time delay went out after 10 seconds, represent to delete successfully, then, no matter delete success or not, all return to step (2);
If user carrys out unloading Copy request by the USB2.0 interface of Arduino development board, described status indicator lamp Led_status and unloading indicator light Led_copy are bright, described ZigBee radio receiving transmitting module is carried out unloading Copy operation, and the wireless sensing data in described safe digital storage card SD card are dumped in subscriber computer by the USB2.0 interface of Arduino development board;
If unloading success, described status indicator lamp Led_status and unloading indicator light Led_copy time delay were gone out after 10 seconds, otherwise, unloading is unsuccessful, and described status indicator lamp Led_status goes out, and unloading indicator light Led_copy time delay was gone out after 5 seconds, no matter which kind of situation, all returns to step (2).
Between sensing node and Internet of Things data gateway, adopt ZigBee Data Transport Protocol to carry out the transmission of data.Internet of Things data gateway is integrated SD card, receiving after the packet that sensing node transmits, according to Zigbee protocol resolution data bag, extracts perception data.Internet of Things data gateway, according to the XML format specification of patent definition, generates the datagram based on XML, datagram is added in the data file on SD card as a new record, then by XML Datagram forwarding on legacy network devices.Internet of Things data gateway is connected on computer by the USB2.0 interface of Arduino development board, user's service data unloading on computers software, port numbers and the baud rate of the serial ports that is connected with Internet of Things data gateway are set, click " copied files ", the data of storing in Internet of Things data gateway can be exported on computer.User presses " Btn_delete " button on Internet of Things data gateway, deletes the data of preserving on Internet of Things data gateway.
The present invention can effectively overcome existing Internet of things access equipment can not locally store perception data, and perception data represents nonstandard problem.By to use of the present invention, can unify to describe to perception data, and successfully realize this locality storage, unloading and the transmission to perception data.In laboratory and concrete application, all obtain good result.
Brief description of the drawings
Sensing layer environment map in Fig. 1 embodiment of the present invention.
Fig. 2 sensing node claim frame structure chart.
Fig. 3 sensing node sends data frame structure figure.
Fig. 4 data gateway receiving data frames structure chart.
The perception data hierarchical model figure of Fig. 5 based on XML.
Fig. 6 data gateway structure chart.
Fig. 7 computer terminal unloading software operation surface chart.
The operational flowchart of Fig. 8 data gateway.
Embodiment
Refer to Fig. 1, be depicted as the environment map of sensing layer 10 in embodiment of the present invention.In the present embodiment, sensing layer 10 comprises one or more wireless aware nodes 11.Data gateway 20 receives and stores the perception data sending from sensing layer 10, and can by USB2.0 interface by data conversion storage to terminal 30.
Refer to Fig. 2, be depicted as sensing node 11 request msg frame assumption diagrams of the present invention.
Refer to Fig. 3, be depicted as sensing node 11 of the present invention and send data frame structure figure.
Refer to Fig. 4, be depicted as data gateway 20 receiving data frames structure charts of the present invention.
Refer to Fig. 5, be depicted as the perception data hierarchical model figure based on XML in embodiment of the present invention.In the present embodiment, data gateway 20 is stored in based on XML hierarchical model the perception data receiving in the SD card of data gateway 20.Refer to Fig. 6, be depicted as the structure chart of data gateway 20 of the present invention.Data gateway 20 is mainly made up of an Arduino development board, ZigBee radio receiving transmitting module 4, SD card 5, Btn_delete button 6 and three indicator lights, and wherein three indicator lights are respectively: Led_status status indicator lamp 1, Led_delete delete indicator light 2 and Led_copy unloading indicator light 3.
Refer to Fig. 7, be depicted as the Operation interface diagram of terminal 30 data conversion storage softwares 31 of the present invention.In the present embodiment, port numbers 311 and baud rate 312 that in data conversion storage software 31, data gateway 20 is connected with terminal 30 are set, click " copied files " button 313, data conversion storage software 31 sends data conversion storage request by USB2.0 interface to data gateway 20, after obtaining the response of data gateway 20, by the data conversion storage in data gateway 20 under the respective paths of terminal 30.Message window 314 is by reminder-data unloading request and state.
Refer to Fig. 8, be depicted as the operational flowchart of data gateway 20 in embodiment of the present invention.
In step S201, power on to Internet of Things data gateway 20, make data gateway 20 be in normal operating conditions.
In step S202, data gateway 20 receives the perception data from sensing layer 10.In the present embodiment, the sensing node 11 Real-time Collection perception datas in sensing layer 10, and send data by ZigBee wireless sending module to data gateway 20 in real time.Data gateway 20 receives perception data in real time by ZigBee wireless receiving module.
In step S203, data gateway 20 is stored in the hierarchical model with based on the XML real-time perception data receiving in the SD card 5 of data gateway 20.
In step S204, data gateway 20 detects whether there is operation requests.Operation requests comprises Delete request and Copy request.In the present embodiment, when press in data gateway 20 Btn_delete button 6 time, by the Delete request of trigger data gateway 20, Delete request is the perception data of deleting in data gateway 20, i.e. SD card 5 in initialization data gateway 20; In the time that terminal 30 sends copy application by USB2.0 interface to data gateway 20, by the Copy request of trigger data gateway 20, Copy request is that the perception data in data gateway 20 is dumped in terminal 30.
If data gateway 20 does not detect any operation requests, return to step S202, data gateway 20 continues to receive the perception data of sensing layer 10.
If data gateway 20 detects Delete request, perform step S205.It is simultaneously bright that Led_status status indicator lamp 1 in data gateway 20 and Led_delete delete indicator light 2, prepares to carry out Delete operation.
If data gateway 20 detects Copy request, perform step S210.Led_status status indicator lamp 1 in data gateway 20 and Led_copy unloading indicator light 3 are simultaneously bright, prepare to carry out Copy operation.
In step S206, delete the perception data in SD card 5 on data gateway 20, initialization SD card 5.
In step S207, judge whether successfully to delete the perception data in data gateway 20.
If delete successfully, perform step S208, Led_status status indicator lamp 1 and Led_delete extinguish after deleting indicator light 2 time delay 10S simultaneously, and return to step S215.
If delete unsuccessfully, perform step S209, Led_status status indicator lamp 1 first extinguishes, and then Led_delete extinguishes after deleting indicator light 2 time delay 5S again, and returns to step S215.
In step S211, the perception data in SD card 5 on data gateway 20 is dumped on terminal 30 by USB2.0 interface.
In step S212, judge whether successfully that perception data in unloading data gateway 20 is to terminal 30.
If unloading success, performs step S213, after Led_status status indicator lamp 1 and Led_copy unloading indicator light 3 time delay 10S, extinguish simultaneously, and return to step S215.
If unloading is unsuccessful, perform step S214, Led_status status indicator lamp 1 first extinguishes, and then after Led_copy unloading indicator light 3 time delay 5S, extinguishes again, and returns to step S215.
In step S215, data gateway 20 continues to receive the perception data that sensing layer 10 sends.
Claims (1)
1. the Internet of Things data gateway based on ZigBee and XML, is characterized in that, contains: be located at ZigBee radio receiving transmitting module on Arduino development board, safe digital storage card SD card, delete button Btn_delete and three indicator lights of use, wherein:
Three indicator lights, are respectively status indicator lamp Led_status, delete indicator light Led_delete and unloading indicator light Led_copy;
ZigBee radio receiving transmitting module receives real-time sensing data by Zigbee protocol from each wireless sensing node of Internet of Things, sets following each request, frame format transmits and receive data;
The structure of wireless sensing node claim frame, contains: first first symbol, first length, first Frame and first 1 byte check character, wherein:
First first symbol is the first byte, is expressed as claim frame data;
First length is second and the 3rd byte, contains most significant byte MSB and least significant byte LSB;
First Frame, contain: the API identifier of nybble and the data Identifier_specific Data corresponding with API identifier, in the described data Identifier_specific Data corresponding with API identifier, contain: the frame identification Frame_ID0x01 of the 5th byte, 6th～13 bytes are the destination address of totally 64, 14th～15 bytes are the destination network addresses of totally 16, the 8th bit operator Options of the 16th byte and the radio frequency data of 17th～n byte, in described radio frequency data, include: wireless sensing node identifier Sensor_id, data type Data_type and date date, n is set point,
Wireless sensing node sends the structure of Frame, contains: second first symbol, second length, second Frame and second 1 byte check character, wherein:
Second first symbol is the first byte, is expressed as transmission Frame;
Second length is second and the 3rd byte, contains: most significant byte MSB and least significant byte LSB;
Second Frame, contain: the API identifier of nybble and the data Identifier_specific Data corresponding with API identifier, in the described data Identifier_specific Data corresponding with API identifier, contain: the frame identification Frame_ID of the 5th byte, the remote network address of 6th～7 bytes, the transmission retry number of times of the 8th byte, the route discovery state of the delivery status of the 9th byte and the 10th byte, wherein delivery status refers to: this Frame successfully transmits, do not receive, communication failure or removed one of four kinds of states identification data frame transmit status indicator, route discovery state refers to: the discovery situation mark of the routing state that Frame transport process calculates,
The structure of Internet of Things data gateway receiving data frames, contains:
The 3rd first symbol is the first byte, is expressed as Internet of Things data gateway receiving data frames,
The 3rd length is second and the 3rd byte, contains: most significant byte MSB and least significant byte LSB,
The 3rd Frame, contain: the API identifier described in nybble and the data Identifier_specific Data corresponding with API identifier, the described data Identifier_specific Data corresponding with API identifier contains: 64 destination addresses of 5th～12 bytes, 16 destination network addresses of 13rd～14 bytes, the operator of the 15th byte, the radio frequency data of 16th～n byte, wherein, described radio frequency data contain: wireless sensing node mark Sensor_id, data type Data_type and data
Described ZigBee radio receiving transmitting module carries out collection, transmission and the storage of data successively according to the following steps:
Step (1), affiliated Arduino development board powers on, and described ZigBee radio receiving transmitting module is started working;
Step (2), described ZigBee radio receiving transmitting module accepts by Zigbee protocol the wireless sensing data that wireless sensing node sends described in each in real time;
The described ZigBee radio receiving transmitting module of step (3) is stored in the real-time hierarchical model with based on XML form of wireless sensing data receiving in described safe digital storage card SD card;
Step (4), detects whether there is operation requests, if do not have, returns to step (1); If have, judgement is to delete Delete request or unloading Copy request;
If the removal request that user triggers by described delete button Btn_delete,: status indicator lamp Led_status and deletion indicator light Led_delete are bright, delete the wirelessly transmitting data in described safe digital storage card SD, make its initialization, carry out and delete Delete operation, and judge that whether deletion is successful; If described status indicator lamp Led_status goes out, go out after 5 seconds and delete indicator light Led_delete time delay, represent to delete unsuccessful; If described status indicator lamp Led_status and deletion indicator light Led_delete time delay went out after 10 seconds, represent to delete successfully, then, no matter delete success or not, all return to step (2);
If user carrys out unloading Copy request by the USB2.0 interface of Arduino development board, described status indicator lamp Led_status and unloading indicator light Led_copy are bright, described ZigBee radio receiving transmitting module is carried out unloading Copy operation, and the wireless sensing data in described safe digital storage card SD card are dumped in subscriber computer by described USB2.0 interface;
If unloading success, described status indicator lamp Led_status and unloading indicator light Led_copy time delay were gone out after 10 seconds, otherwise, unloading is unsuccessful, and described status indicator lamp Led_status goes out, and unloading indicator light Led_copy time delay was gone out after 5 seconds, no matter which kind of situation, all returns to step (2).
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| CN103676795B (en) * | 2012-09-06 | 2016-12-21 | 苏州联科盛世科技有限公司 | Intelligent monitor system based on technology of wireless sensing network |
| CN104967681B (en) * | 2015-06-17 | 2018-10-12 | 重庆邮电大学 | A kind of WIA-PA gateway service methods based on XML |
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| CN113238489B (en) * | 2016-11-23 | 2024-06-11 | 阿里巴巴集团控股有限公司 | Intelligent building control method, device and system |
| CN106888281A (en) * | 2017-03-31 | 2017-06-23 | 山东超越数控电子有限公司 | A kind of things-internet gateway and application towards ZigBee radio sensing networks and IPv4 networks |
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| CN112995264B (en) * | 2019-12-18 | 2022-08-19 | 花瓣云科技有限公司 | Method, device and storage medium for preventing data from being deleted by mistake |
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