CN104184786A - Wireless sensor cloud gateway system for forest environment - Google Patents
Wireless sensor cloud gateway system for forest environment Download PDFInfo
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- CN104184786A CN104184786A CN201310415497.9A CN201310415497A CN104184786A CN 104184786 A CN104184786 A CN 104184786A CN 201310415497 A CN201310415497 A CN 201310415497A CN 104184786 A CN104184786 A CN 104184786A
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Abstract
The invention discloses a wireless sensor cloud gateway system for forest environment. A gateway is a hub for connecting a cloud platform with a wireless sensor network. A core control module can be synchronously updated according to a user control command or along with a task list of the cloud platform. A data acquisition module wakes up various sensor nodes managed by the cloud gateway in a heuristic node waking mode, receives data acquired by various sensor nodes in a wireless sensor network, and stores the received data. A data communication module transmits acquired data stored in the data acquisition module to the cloud platform in a wireless communication mode.
Description
Technical field
The present invention relates to forest resourceies monitoring field, in particular to a kind of wireless senser cloud gateway system towards forest zone environment.
Background technology
Along with the deterioration of biological environment, the mankind are more and more urgent to the demand of ECOLOGICAL ENVIRONMENTAL MONITORING, and wireless sensor network with it on a large scale, the features such as easy deployment and Real-Time Monitoring, also be widely used in ECOLOGICAL ENVIRONMENTAL MONITORING, and forest is as the ecosystem of land maximum, maintaining the stable of biosphere, water conservation, soil conservation, Gu carbon oxygen release, Cleaning Air, irreplaceable effect is being brought into play in the aspect of improving the ecological environment, therefore forest ecological environment monitoring is being prevented and monitoring forest fire, conserve forests, maintain forest ecology balance and have vital meaning.
At present, in the application of forestry wireless senser, a large amount of monitorings mainly concentrate on the good region of infrastructure, transmit by means of wired or wireless (as GPRS etc.), to carry out networking by ZigBee at sensor node internal main, do not fully take into account the abominable of forest zone environment and the remote property of position, for the monitoring of the severe remote, thickly forested mountains of environment, almost in blank, its subject matter facing is: 1) sensor node data is collected and transmission problem; 2) long term monitoring Power supply problem; 3) forest zone uncertain environment adaptability; 4) Cost Problems etc.
Summary of the invention
The invention provides a kind of wireless senser cloud gateway system towards forest zone environment, in order to overcome at least one problem existing in existing application and technology.
For achieving the above object, the invention provides a kind of wireless senser cloud gateway system towards forest zone environment, this system comprises kernel control module, data acquisition module, data communication module and power management module, wherein:
Described kernel control module stores system management configuration information and data management configuration information, wake described cloud gateway up according to predetermined time, according to user's control command or automatically synchronize and upgrade with the task list of cloud platform, and according to the time of implementation of task in task list, open the function of described data acquisition module or described data communication module;
After described data acquisition module starts, with didactic node wake-up mode, the each sensor node in the described wireless sensor network under described cloud gateway management is waken up, receive the data that the each sensor node in described wireless sensor network gathers, and received data are stored;
Described data communication module sends to described cloud platform by communication by the image data of described data acquisition module storage after starting;
Described power management module is for judging whether the time interval of current task and next task is greater than setting threshold, if be greater than setting threshold, current task finishes rear described cloud gateway and enters resting state, otherwise described cloud gateway continues to keep operating state, waits pending next task.
Wireless senser cloud gateway has the ability of managing wireless sensing device network simultaneously, and the wireless sensor network of managing comprises multiple sensor nodes.Cloud gateway can be regularly to the information of the synchronous each sensor node of cloud platform on backstage, to ensure that cloud gateway effectively manages the transducer in all wireless sensor networks and node, simultaneously transducer and node also can be independently to the information of gateway renewal self.These information comprise numbering, title, the MAC Address of node, position and the attribute sensor etc. of node.Described cloud gateway is according to these information, each sensor node is carried out to unified management and data harvesting, sensor node carries out the collection of Forestry Data after the wake command that receives described cloud gateway, and by the data aggregate collecting to aggregation node, send to described cloud gateway by aggregation node.
Optionally, described communication comprise following at least one: data radio station communication, satellite communication, 3G communication are communicated by letter with WiFi.
Optionally, described power management module comprises solar panel, DC-DC conversion unit, power control unit and storage battery, described DC-DC conversion unit is connected between described solar panel and described power control unit, described power control unit is connected with described storage battery, in the time that the current value of described DC-DC conversion unit is not less than settings, described in described power control unit control, solar panel is powered to hardware, and by extremely described storage battery of unnecessary electric energy unloading; In the time that the current value of described DC-DC conversion unit is less than described settings, storage battery is powered to hardware described in described power control unit control.
Optionally, task in described task list is divided into data acquisition task, data transfer task and information synchronous task, and be respectively corresponding task and set up task mark, described cloud gateway starts the corresponding module of carrying out this task according to the task mark of every task.
Optionally, in the time determining that according to the task mark of current task current task is data transfer task, described cloud gateway is set up when a not transmission mark with setting starts and adds the current date and is divided into the file of title according to current time, to the data that collect are stored; Described data acquisition module, according to the node ID retrieval sensor node list in current task, obtains MAC, the port number of transducer and the communication protocol using of sensor node; Described data acquisition module is connected with corresponding transducer successively according to the ID of node, obtain the data that it monitors, when wherein said data acquisition module is connected with respective sensor successively according to node ID, by calling the different functions of respective protocol, then send wake events order to respective sensor, transducer in low power sleep is waken up, and transducer starts to obtain Monitoring Data, and is transferred to described data acquisition module by communication protocol.
Optionally, in the time determining that according to the task mark of current task current task is data transfer task, task transport module described in described cloud gateways and starting, the data file of not transmitting in retrieve stored space, wherein the data file of transmission is not that the not transmission of setting indicates the file starting, by after the data file compression of the not transmission retrieving, be transferred to described cloud platform by communication, and the mark of the file of transmission success is revised as and transmits mark; Wherein the file of transmission success does not reenter in transmission list, again attempts transmission, attempts also unsuccessful file of set point number, is kept in described cloud gateway, again attempts transmission in the time carrying out next data transfer task.
The present invention by adopt the methods such as the multiple communication modes such as energy dump and scheduling strategy, WiFi, 3G, data radio station and satellite and reliable data management and system self reover solved gateway energy consumption, communicate by letter, the problems such as data management and environmental suitability, can for forest zone particularly remote, thickly forested mountains district monitoring a reliable gateway device is efficiently provided, provide the basic data data of real-time forest ecological environment, for the Real-Time Monitoring that gos deep into of forest provides safeguard.Based on cloud computing thought, provide the interface linking with management cloud platform simultaneously, realized user to device transparencyization management and configuration.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the wireless senser cloud gateway system schematic diagram towards forest zone environment according to an embodiment of the invention;
Fig. 2 is the cloud gateway architecture schematic diagram of one embodiment of the invention;
Fig. 3 is the software systems schematic diagram of the cloud gateway of one embodiment of the invention;
Fig. 4 is the timer time control flow chart of one embodiment of the invention;
Fig. 5 a, Fig. 5 b, Fig. 5 c are respectively ASCENT algorithm triggers, foundation and stabilization sub stage schematic diagram;
Fig. 6 is the data acquisition harvesting schematic flow sheet of one embodiment of the invention;
Fig. 7 is the transfer of data flow process figure of one embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not paying the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the schematic diagram towards the wireless senser cloud gateway system function of forest zone environment according to an embodiment of the invention.As shown in the figure, cloud gateway is connected between cloud platform and wireless sensor network, and cloud gateway is hinge and the core of whole system, and its lower end is connecting wireless sensor devices, is responsible for the management to the transducer in wireless sensor network and node; Bear the task that the data of forestry sensor device acquisition are gathered, processed and transmit; Undertaking the conversion function of transducer underlying protocol and the Internet upper-layer protocol; Cloud gateway upper end is connected with cloud platform, by cloud platform access interface is provided, makes user realize obtaining of by clients such as the browsers management to cloud gateway, wireless sensor network and Forestry Data task.
Function below in conjunction with cloud gateway is specifically addressed.
Cloud gateway comprises kernel control module, data acquisition module, data communication module and power management module, kernel control module stores system management configuration information and data management configuration information, wake cloud gateway up according to predetermined time, according to user's control command or automatically synchronize and upgrade with the task list of cloud platform, and according to the time of implementation of task in task list, the function of turn-on data acquisition module or data communication module; After data acquisition module starts, with didactic node wake-up mode, the each sensor node in the wireless sensor network under cloud gateway management is waken up, receive the data that the each sensor node in wireless sensor network gathers, and received data are stored; Data communication module sends to cloud platform by communication by the image data of data acquisition module storage after starting; Power management module is for judging whether the time interval of current task and next task is greater than setting threshold, if be greater than setting threshold, current task finishes rear cloud gateway and enters resting state, otherwise cloud gateway continues to keep operating state, waits pending next task.
By modular design, improve the flexibility of cloud gateway, realize plug and play and handled easily and upgrading etc.Fig. 2 is the cloud gateway architecture schematic diagram of one embodiment of the invention; As shown in the figure, in the time of specific implementation cloud gateway, can be from building with subsurface:
(1) hardware layer.The hardware layer of cloud gateway mainly comprises the communication apparatus that embedded board, memory device, electric power supply system equipment and the gateway based on ARM11 is connected with server with node, and the hardware supports of the functions such as communication, processing, storage, management is provided for system layer.
(2) system layer.Cloud gateway is that the linux operating system based on increasing income is carried out software development, after completing the upper required interface driver of development board, for the function of gateway device management, sensor node management, data management, system configuration and energy conservation, formation control function library, be beneficial to exploitation and the realization of gateway function, ensure lightweight and the portability of whole software systems simultaneously.
(3) application layer.User and manager can be by the mode of Web and ssh long-range or local IP access gateway, so that user and manager send task requests, obtain data and manage whole wireless sensor network, simultaneously also can by the mode of short message carry out task please summed data obtain.In addition the cloud plateform system that user also can be connected with gateway by access, obtains latest data or historical data that gateway sends, so that analyze and research.
Fig. 3 is the software systems schematic diagram of the cloud gateway of one embodiment of the invention; As shown in the figure, Software for Design is divided into front end and shows interactive portion and rear end two parts of operation automatically.Leading portion shows that interactive portion is mainly that user can be connected with cloud platform by network (web) browser with manager, again by after authentication, according to authority, cloud platform 3G, data radio station, the WebServer(webserver of the mode such as WIFI or satellite and particular gateway) be connected, pass through the CGI(Common Gateway Interface in server according to user's request, CGI(Common gateway interface)) program realizes user and the editor of manager to particular gateway task, the management of file, in gateway the operation such as the access of the data of storing and the management of sensor node.The browsers local access cloud gateway that local manager also can carry by gateway simultaneously, manages and controls it.Rear end automatically operation is not need man-machine interaction, under the control of task listing file and timer, automatically realizes data are gathered, uploaded and the synchronizing function of management and control and management command file.Cloud gateway is by artificial and automatically system is configured and is managed.User and manager can directly have access to specific gateway by the transfer of cloud platform and be configured and manage, and the browser that local management person can directly carry by gateway or the mode of SSH manage gateway.
Wireless sensor network comprises multiple sensor nodes, the information of each sensor node is registered at cloud platform, and be synchronized to cloud gateway, this information comprises numbering, title, the MAC Address of node, position and the attribute sensor of node, cloud gateway is according to the information of registration, each sensor node is carried out to unified management and data harvesting, sensor node carries out the collection of Forestry Data after the wake command that receives cloud gateway, and by the data aggregate collecting to aggregation node, send to cloud gateway by aggregation node.
Aspect energy conservation, the energy problem of field, forest zone transducer and communication apparatus is the bottleneck problem of restriction forestry monitoring and application always.Cloud gateway in the embodiment of the present invention solves by the strategy of " throttling " of energy dump and scheduling " increasing income " and the low-power consumption timing dormancy of equipment.
(1) dump of energy and scheduling mode
Solar panel is expanded, proposed to carry out in conjunction with jumbo lead accumulator the supply scheme of the forest zone wild environment of energy storage.Power management module comprises solar panel, DC-DC conversion unit, power control unit and storage battery, DC-DC conversion unit is connected between solar panel and power control unit, power control unit is connected with storage battery, in the time that the current value of DC-DC conversion unit is not less than settings, power control unit control solar panel is powered to hardware, and by unnecessary electric energy unloading to storage battery; In the time that the current value of DC-DC conversion unit is less than settings, power control unit control storage battery is powered to hardware.That is, in the time of great abundance of sunshine, power management control solar panel is powered to node, and dump energy is gone in energy storage battery, during in sunlight deficiency or without sunlight, when solar panel electricity shortage, power management is in connection with storage battery anti-return technology, the power supply of control energy storage battery, makes cloud gateway system can possess forest zone wild environment self-powered ability, improves its life cycle.
(2) low-power consumption timing dormancy mode
As described in embodiment above, adopt the mode of file task management, taking one task time listing file as core, utilize dormancy setting and house dog to arrange, make cloud gateway resting state in low-power consumption within the task time interval.While entering resting state, need to carry out the judgement at next of interval task time, if interval greater than threshold value, start dormancy program, if not, continue to keep operating state, wait for that next task completes.Because if two tasks are shorter interval time, system returns to energy power consumption that operating conditions consumes by the energy power consumption that is far longer than dormancy and saves by dormant state.
In the time that task is managed, the task in task list can be divided into data acquisition task, data transfer task and information synchronous task, and be respectively corresponding task and set up task mark, for example, can represent data acquisition task with mark " 1 "; Mark " 2 " represents data transfer task; Mark " 3 " represents and cloud platform synchronous task.Cloud gateway starts the corresponding module of carrying out this task according to the task mark of every task.Cloud gateway is automatically according to being connected with cloud platform with the task of server sync in task list, obtains and upgrades up-to-date task list and managing configuration information.
In system configuration process, be of paramount importance to the configuration of timer.Timer configuration relation is to data acquisition, transfer of data, task list file and management information is synchronous and gateway dormancy etc., is the core of gateway task.Timer makes gateway system dormancy according to waking up after gateway or task interval reach certain threshold value of task list.Fig. 4 is the timer time control flow chart of one embodiment of the invention; As shown in the figure, the task control flow process of timer comprises:
(1) enter after operating conditions when gateway enters by dormant state, first obtain current time, and retrieval tasks listing file, find task and next task of current time.
(2), according to the mark in task, carry out the task of data acquisition harvesting, transfer of data and synchronizing information.
(3), after tasks carrying finishes, node, according to the time interval of current time and next task time, judges whether to enter resting state.If the time interval is less than threshold value, wait for after interval time, carry out next task.Otherwise node enters resting state.
Below elaborate the management method of sensor node:
1) node registration
By need to join node and the sensor information of cloud gateway in cloud gateway registration, comprise the numbering of node, title, MAC Address, the position of node, attribute sensor etc.Cloud gateway adopts active mode to find the node of registering in gateway, then node is carried out to unified management and data harvesting.Its information is as shown in table 1, table 2 and table 3, and table 1 is nodal community table, and table 2 is node channel attributes table, and table 3 is attribute sensor table.
Table 1
Table 2
Table 3
2) node control
Node control is mainly that cloud gateway is by obtain the sensing data of interdependent node to specified node sending controling instruction, to reach the object gathering as required.Cloud gateway adopts based on ASCENT(adaptive self-configuring ensor networks topology, the topological structure of self adaptation self-configuring sensor network) Heuristic Node of algorithm wakes up with dormancy mechanism node carried out to dormancy dispatching management.
Quantity that can equalizing network backbone node based on ASCENT algorithm, ensures the smooth and easy of data path.In the time receiving data, find that packet loss is serious when node, just send to the neighbor node of data source direction the message of seeking help.When node detects the help request that communication node packet loss is very high or neighbor node sends around, just initiatively become active state from resting state, help neighbor node forwarding data bag.
ASCENT algorithm comprises three phases, and Fig. 5 a, Fig. 5 b, Fig. 5 c are respectively ASCENT algorithm triggers, foundation and stabilization sub stage schematic diagram.
The triggering stage, in the time that aggregation node and data source nodes can not proper communications, aggregation node sent help information to its neighbor node as shown in Figure 5 a.
Establishment stage as shown in Figure 5 b, in the time that node is received the help information of neighbor node, determines by calculating whether oneself becomes active node.Just send notice message to neighbor node if become active node, this message is whether neighbor node judging self becomes one of factor of active node simultaneously.
Stabilization sub stage, the communication recovery between data source nodes and aggregation node was normal as shown in Figure 5 c, and it is stable that active node number keeps, and now network reaches stable state.
3) status poll
Cloud gateway obtains specified node and affiliated sensor states by Web interactive interface or command line mode, according to the state returning, node and transducer is managed.
4) information is synchronous
Cloud gateway is synchronous by information, with cloud platform synchronization node and transducer log-on message.Cloud gateway is by the final user oriented of cloud platform, user is by after cloud platform Register Sensor nodal information, synchronous by cloud gateway information, and node and sensor information are synchronized in cloud gateway system, cloud gateway, by active mode, is found node and sensor information in cloud gateway registration.
Below the process of data harvesting is described in detail.
The harvesting of data is on the basis of wireless sensor network, gathers in algorithm by data, combined sensor network organizing mode, and the Forestry Data that transducer, node device are obtained gathers, and is aggregated to the process of aggregation node.
1) data harvesting flow process
In the time that time control task is data acquisition mark, cloud gateway just enters into data acquisition state.Fig. 6 is the data acquisition harvesting schematic flow sheet of one embodiment of the invention; As shown in the figure, detailed process is:
(1) first cloud gateway according to current time set up one taking do not transmit mark as letter " A " as initial, while adding the current date, be divided into the file of title, so as to collection to data store.
(2) then cloud gateway, according to the node ID retrieval sensor node list in current task, obtains MAC, the port number of transducer and the communication protocol using of sensor node.
(3) be then connected with corresponding transducer successively according to the ID of node, obtain the data that monitor.When cloud gateway is connected with transducer successively according to node ID, the different functions that call respective protocol, then send wake events order to transducer, make to wake up in the transducer of low power sleep, and start to obtain Monitoring Data, and be transferred to gateway by communication protocol.
Below data transmission procedure is described in detail.
In the time that time control task is transfer of data mark, gateway just enters into data transmission state.Fig. 7 is the transfer of data flow process figure of one embodiment of the invention; As shown in the figure, idiographic flow is: the data file of first not transmitting in system meeting retrieve stored space, the data file of transmission is not the logo file that does not transmit mark as letter " A " beginning, this file is traveled through, each file is first compressed, transmit by the mode of 3G, data radio station or satellite afterwards.To its mark of the file modification of transmission success mark as letter " B " of having transmitted by name, the file of transmission success does not reenter in transmission list, again attempts transmission, attempts also unsuccessful file of set point number (as three times), be kept in cloud gateway, lower subtask is attempted transmission again.To changing the file of " B " mark into, delete and destroy according to the size threshold value of memory space.
In most of region in field, forest zone, there is no the covering of public network, cannot adopt 3G mode to carry out transfer of data.And adopt data radio station while carrying out transfer of data, need to there be the infrastructure such as various communications.And satellite communication can provide the transfer of data of round-the-clock global range in the world.Although satellite communication is in the time of large transfer of data, because the reasons such as weather can produce interruption, for the sensing data transmission of short data form or feasible.Satellite communication seems particularly important for the wireless sensor data transmission in field, forest zone.
Because the complexity of forest zone environment is with severe, may there is unsure state in cloud gateway system program, and system self reover is the critical function of system robustness, can recover normal while guaranteeing system crash, loss can be reduced to minimum.Cloud gateway in the embodiment of the present invention adopts easy from reset mode, uses house dog and timer monitor and certainly restart.
In sum, the present invention is based on the particular surroundings in forest zone, in conjunction with cloud computing, design a kind of wireless senser cloud gateway, by gathering in technology and IaaS cloud service pattern in conjunction with gateway data, large-scale wireless sensor network equipment and cloud platform are linked, lower end is carried out to the management of wireless sensor network, be responsible for harvesting and the transmission of sensor device data, provide cloud gateway access interface to upper end cloud platform, make whole Internet of Things form an entirety, become hinge and the core of forestry Internet of Things.The beneficial effect of the above embodiment of the present invention is:
(1) the purple honeybee of the ZigBee(by between the multiple communication modes such as WiFi, 3G, data radio station and satellite and node), the multiple networking mode such as bluetooth, wifi realized the communication under the complex environment of forest zone, completed the comprehensive monitoring to forest zone.And the communication modes of gateway of the present invention can add and delete according to actual conditions, as long as the interface driver of corresponding communication apparatus is provided.
(2) having solved problem and the adaptive problem of forest zone complex environment of forest zone energy resource supply by strategies such as energy dump and scheduling strategy and system self reovers, can be the needs that gateway adapts to forest zone monitoring better.
(3) by with the interface of cloud platform, and reception and parsing to cloud platform command realizes management and the configuration of user to gateway and wireless sensor network.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
One of ordinary skill in the art will appreciate that: the module in the device in embodiment can be described and be distributed in the device of embodiment according to embodiment, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into multiple submodules.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record previous embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of embodiment of the present invention technical scheme.
Claims (6)
1. towards a wireless senser cloud gateway system for forest zone environment, it is characterized in that, comprise kernel control module, data acquisition module, data communication module and power management module, wherein:
Described kernel control module stores system management configuration information and data management configuration information, wake described cloud gateway up according to predetermined time, according to user's control command or automatically synchronize and upgrade with the task list of cloud platform, and according to the time of implementation of task in task list, open the function of described data acquisition module or described data communication module;
After described data acquisition module starts, with didactic node wake-up mode, the each sensor node in the described wireless sensor network under described cloud gateway management is waken up, receive the data that the each sensor node in described wireless sensor network gathers, and received data are stored;
Described data communication module sends to described cloud platform by communication by the image data of described data acquisition module storage after starting;
Described power management module is for judging whether the time interval of current task and next task is greater than setting threshold, if be greater than setting threshold, current task finishes rear described cloud gateway and enters resting state, otherwise described cloud gateway continues to keep operating state, waits pending next task.
2. system according to claim 1, is characterized in that, described communication comprise following at least one:
Data radio station communication, satellite communication, 3G communication are communicated by letter with WIFI.
3. system according to claim 1, it is characterized in that, described power management module comprises solar panel, DC-DC conversion unit, power control unit and storage battery, described DC-DC conversion unit is connected between described solar panel and described power control unit, described power control unit is connected with described storage battery, in the time that the current value of described DC-DC conversion unit is not less than settings, described in described power control unit control, solar panel is powered to hardware, and by extremely described storage battery of unnecessary electric energy unloading; In the time that the current value of described DC-DC conversion unit is less than described settings, storage battery is powered to hardware described in described power control unit control.
4. system according to claim 1, it is characterized in that, task in described task list is divided into data acquisition task, data transfer task and information synchronous task, and be respectively corresponding task and set up task mark, described cloud gateway starts the corresponding module of carrying out this task according to the task mark of every task.
5. system according to claim 4, it is characterized in that, in the time determining that according to the task mark of current task current task is data transfer task, described cloud gateway is set up when a not transmission mark with setting starts and adds the current date and is divided into the file of title according to current time, to the data that collect are stored; Described data acquisition module, according to the node ID retrieval sensor node list in current task, obtains MAC, the port number of transducer and the communication protocol using of sensor node; Described data acquisition module is connected with corresponding transducer successively according to the ID of node, obtain the data that it monitors, when wherein said data acquisition module is connected with respective sensor successively according to node ID, by calling the different functions of respective protocol, then send wake events order to respective sensor, transducer in low power sleep is waken up, and transducer starts to obtain Monitoring Data, and is transferred to described data acquisition module by communication protocol.
6. system according to claim 4, it is characterized in that, in the time determining that according to the task mark of current task current task is data transfer task, task transport module described in described cloud gateways and starting, the data file of not transmitting in retrieve stored space, wherein the data file of transmission is not that the not transmission of setting indicates the file starting, by after the data file compression of the not transmission retrieving, be transferred to described cloud platform by communication, and the mark of the file of transmission success is revised as and transmits mark; Wherein the file of transmission success does not reenter in transmission list, again attempts transmission, attempts also unsuccessful file of set point number, is kept in described cloud gateway, again attempts transmission in the time carrying out next data transfer task.
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| CN112449006A (en) * | 2020-11-12 | 2021-03-05 | 深圳防灾减灾技术研究院 | Data transmission method, computer and medium for seismic station data acquisition unit and seismic table network central data server |
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| CN113660647A (en) * | 2021-08-13 | 2021-11-16 | 四川长虹网络科技有限责任公司 | Environment monitoring system and method based on Bluetooth LongRange mode |
| CN114095893A (en) * | 2021-10-19 | 2022-02-25 | 浙江工业大学 | Distributed digital agricultural park environment sensing system |
| CN114340052A (en) * | 2021-12-30 | 2022-04-12 | 雷玺智能科技(上海)有限公司 | Bidirectional low-power-consumption power management function gateway |
| CN115460034A (en) * | 2022-08-05 | 2022-12-09 | 东风汽车集团股份有限公司 | Controlled power supply network management system and method |
| CN115460034B (en) * | 2022-08-05 | 2023-10-17 | 东风汽车集团股份有限公司 | Controlled power supply network management system and method |
| CN117377142A (en) * | 2023-11-22 | 2024-01-09 | 中铁一局集团城市轨道交通工程有限公司 | Information acquisition wireless sensor network gateway |
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