CN101500324A - Application method and system based on wireless sensor network - Google Patents
Application method and system based on wireless sensor network Download PDFInfo
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Abstract
The invention discloses an application method and a system based on a wireless sensor network. The method comprises the following steps: a data conversion and communication module, which is wirelessly connected with a mobile terminal, is arranged on a convergent node in the wireless sensor network; the convergent node receives environmental data collected and transmitted by a sensor node in the wireless sensor network, converts the environmental data into the data with the format accepted by the mobile terminal through the data conversion and communication module, and transmits the converted data to the mobile terminal; and the mobile terminal receives and carries out application processing to the environmental data sent from the convergent node. The invention greatly improves the applicability of the application of the whole wireless sensor network by means of good mobility of the mobile terminal, thereby being capable of easily upgrading the existing network to be applicable to the structure with better applicability like the invention, and has the advantages of easy upgrade mode and low network improvement cost.
Description
Technical Field
The invention relates to the field of wireless sensor networks and mobile communication, in particular to an application method and system based on a wireless sensor network.
Background
Wireless sensor networks have gradually entered people's lives as one of the most important technologies in the 21 st century. In order to research wireless sensor networks, many companies, including colleges, have introduced wireless sensor network commercialization platforms. The system architecture of a typical wireless sensor network platform is shown in fig. 1.
In fig. 1, the whole system structure is composed of three parts, namely a wireless sensor node, a sink node and a PC. Each sensor node deployed in a monitoring area has sensing and wireless communication capabilities, and collects environmental information and sends the environmental information to a sink node in a multi-hop mode; the sink node is equivalent to a gateway and is responsible for forwarding data sent by the sensor node to the PC through an RS232 interface; through the PC, the user can monitor the environmental information in the deployment area of the sensor network.
Although the system can meet the requirements of laboratories, the system is greatly limited in outdoor practical application environments, and is mainly characterized in that large-scale equipment such as a PC (personal computer) cannot be carried in outdoor practical environments and a 220V alternating-current power supply is provided for the large-scale equipment, so that the system structure has considerable limitation.
Disclosure of Invention
In view of the foregoing background, the present invention provides an application method and system based on a wireless sensor network, which can improve the applicability of the wireless sensor network application.
In order to solve the technical problems, the invention adopts the following technical scheme:
an application method based on a wireless sensor network comprises the following steps:
A. a data conversion and communication module is arranged on a sink node in a wireless sensor network and is in wireless connection with a mobile terminal;
B. the sink node receives environment data which is collected and transmitted by a sensor node in a wireless sensor network, converts the environment data into data with a format which can be accepted by the mobile terminal through the data conversion and communication module and transmits the data to the mobile terminal;
C. and the mobile terminal receives the environment data sent by the sink node and executes application processing on the environment data.
In an embodiment of the application method, the application process comprises storage, display or remote interaction of the environment data.
The mobile terminal may be a 3G mobile terminal.
In an embodiment of the application method, the mobile terminal includes a GPS module, and the application method further includes a node location calibration process:
setting an anchor node in a sensor node;
and calibrating the position of the anchor node through the GPS module.
In another embodiment of the application method, the mobile terminal includes a video module, and the application method further includes a process of performing video monitoring on a monitoring site in the sensor network by using the video module.
The invention also discloses an application system based on the wireless sensor network, which comprises the sensor nodes, the sink node and the mobile terminal; wherein,
the sensor node is used for acquiring environmental data and transmitting the environmental data to the sink node;
the sink node is provided with a data conversion and communication module, and the data conversion and communication module is in wireless connection with the mobile terminal; the sink node is used for receiving the environment data collected and transmitted by the sensor node, converting the environment data into data with a format acceptable by the mobile terminal through the data conversion and communication module and transmitting the data to the mobile terminal;
and the mobile terminal is used for receiving the environment data sent by the sink node and executing application processing on the environment data.
The data conversion and communication module may be a bluetooth converter.
The mobile terminal is introduced into the wireless sensor network, the data conversion and communication module arranged on the sink node is in wireless connection with the mobile terminal, the collected environment data is subjected to format conversion and then is transmitted to the mobile terminal, and the mobile terminal performs corresponding application processing on the environment data, so that the applicability of the whole wireless sensor network in application is greatly improved by virtue of good mobility of the mobile terminal. For the reconstruction of the existing network, only one data conversion and communication module needs to be arranged on the convergent node, so that the existing network can be easily upgraded to adapt to the structure with better applicability, the upgrading mode is simple, and the network reconstruction cost is low.
Drawings
FIG. 1 is a schematic diagram of an exemplary architecture of a wireless sensor network system;
FIG. 2 is a schematic diagram of a wireless sensor network system upgraded by the present invention;
FIG. 3 is a diagram illustrating the connection of hardware modules according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart of a method according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments with reference to the accompanying drawings.
As shown in fig. 2, the application system of the embodiment of the present invention mainly includes the following modules:
and the sensor node 4 is used for acquiring the environmental data of the monitoring area 5 and transmitting the data to the sink node 3 in a wireless multi-hop manner.
And the sink node 3 is responsible for receiving the data packet sent by the sensor node 4 and forwarding the data packet out through the RS232 interface.
And the data conversion and communication module 2 is arranged at the sink node 3 and is used for connecting the sink node 3 and wirelessly connecting the mobile terminal 1. In this example, the data conversion and communication module 2 is a bluetooth converter, and the bluetooth converter 2 receives RS232 data sent by the sink node 3, converts the data into bluetooth data, and sends the bluetooth data to the mobile terminal 1; correspondingly, the bluetooth data of the mobile terminal 1 is converted into RS232 data and sent to the sink node 3. Of course, the data conversion and communication module 2 is not limited to the bluetooth converter, and may be a data conversion and communication module with other formats, such as an infrared converter, a USB to RS232 module, and the like.
The mobile terminal 1 realizes wireless connection with the sink node 3 through the data conversion and communication module 2. According to the present example, since the data conversion and communication module 2 is a bluetooth converter, the mobile terminal 1 is a mobile terminal 1 with bluetooth function, i.e. bluetooth data is data in an acceptable format for the mobile terminal. Other formats corresponding to the data may be processed using this structure as long as the format is acceptable to the mobile terminal.
The mobile terminal 1 may perform various corresponding application processes on the received environment data, such as storing the environment data in the local terminal, displaying the environment data in the local terminal, and the like. In addition, the environment data can be transmitted to a cell base station through a mobile communication network, or reach a remote terminal or a server in a remote place through the internet (internet), so that the application of remote data interaction is realized. The mobile communication network may be a 2G network, such as a GSM network, a GPRS network. It may also be a 3G network, such as a WCDMA network, TDS-CMDA network, etc. The 3G mobile communication network is composed of a satellite mobile communication network and a ground mobile communication network, is a global seamless coverage three-dimensional communication network, can meet various user densities in cities and remote areas, supports a high-speed mobile environment, and provides an advanced mobile communication network with multiple services (the highest rate can reach 2Mbps) such as voice, data, multimedia and the like. At present, 3G technology has already matured, and various services based on a 3G platform are rapidly developed. When the 3G network is adopted for remote data interaction, correspondingly, the mobile terminal is a 3G mobile terminal supporting 3G.
The mobile terminal can be provided with a GPS module so as to be capable of communicating with a GPS satellite and used for calibrating the position of an anchor node set in the sensor node; in addition, the mobile terminal can be provided with a video module, and video monitoring can be carried out on site by utilizing the video telephone service realized by the mobile terminal video module in the monitoring application of the wireless sensor network.
Corresponding to the system, the application method based on the wireless sensor network of the embodiment of the invention comprises the following steps:
1. a data conversion and communication module is arranged on a sink node in a wireless sensor network and is in wireless connection with a mobile terminal;
2. the sink node receives environment data which is collected and transmitted by a sensor node in a wireless sensor network, converts the environment data into data with a format which can be accepted by the mobile terminal through the data conversion and communication module and transmits the data to the mobile terminal;
3. and the mobile terminal receives the environment data sent by the sink node and executes application processing on the environment data.
The application method and the system have the following beneficial effects:
1. by upgrading the original wireless sensor network and completing the construction of the upgraded wireless sensor network by means of the mobile terminal, a PC (personal computer) or a large-scale power supply does not need to be carried when the experiment is carried out in the field, and the applicability of a new wireless sensor network platform is greatly improved.
2. The upgrading method is simple, the universality is good, and most wireless sensor network platforms in the current market can be upgraded.
3. The upgrading mode has lower cost, and the existing mobile terminal platform can be directly adopted, so that the hardware development and debugging cost can be saved.
4. The GPS module arranged on the mobile terminal can be used for positioning the anchor node in the wireless sensor network, so that the problem of difficulty in matching the location of sensor network data can be conveniently solved, and the practicability of a new wireless sensor network platform is greatly improved.
5. By utilizing the video telephone service of the mobile terminal, the problems that the wireless sensor network has small bandwidth and cannot transmit video data are conveniently solved.
6. The upgraded wireless sensor network platform can be connected with the Internet and a remote computer through a 3G network, so that remote transmission of sensor network data is realized.
The following describes an application method and system of the embodiments of the present invention by way of an example. In this example, the mobile terminal is a 3G mobile phone, the data conversion and communication module is a bluetooth converter, as shown in fig. 3, the 3G mobile phone 1 is connected to the sink node 3 through the bluetooth converter 2 to complete data conversion and communication, bluetooth data is transmitted between the 3G mobile phone 1 and the bluetooth converter 2, and RS232 data is transmitted between the bluetooth converter 2 and the sink node 3.
The 3G mobile phone 1 may be, for example, a TD-SCDMA/EDGE dual-mode mobile phone U980 made by zhongxing communication corporation, which adopts a linux operating system, conforms to a bluetooth V2.0 protocol, has two cameras with 200 ten thousand and 30 ten thousand pixels, and is internally provided with a GPS. The bluetooth converter 2 can adopt a BCM _ LV module of Lingfeng company, for example, which conforms to the bluetooth V2.0 protocol, has a standard sensitivity (bit error rate) of-80 dBm, is provided with a 2.4GHz antenna inside, adopts forward error correction coding, and has high communication efficiency, automatic frequency hopping and strong anti-interference capability. The Bluetooth converter 2 and the sink node 3 are connected through an RS232 interface by using a standard 9-pin serial port. The sink node 3 is a part of a wireless sensor network platform, and may be a MIB510 type sink node of CROSSBOW company, for example, according to different manufacturers.
Fig. 4 is a schematic flow chart of the above example, which includes the following specific steps:
and step S1, connecting the sink node 3 to the Bluetooth converter 2 through the serial port, and turning on the power of the device.
And step S2, opening the Bluetooth function of the 3G mobile phone 1, searching for Bluetooth equipment, and pairing with the Bluetooth converter 2. After pairing is completed, the initialization work is completed.
And step S3, operating the WSN view in the 3G mobile phone 1.
Step S4, setting working parameters in the WSN view: including baud rate, data bits, parity of the connection with the bluetooth converter 2; if the data needs to be shared with a remote server, a remote IP address and a remote port number need to be set; and if the video service is needed, adding the mobile phone number of the matched mobile phone into a white list.
Step S5, after connecting with the sink node through the bluetooth converter, the analytic data packet of the sensor network can be viewed from the main window of the software. If remote sharing is set in step S4, the wireless sensor network data will be sent to the remote server in a background process. From step S5, the main window may jump to step S6, step S7, and step S8, respectively.
Step S6, in the experimental process, if the anchor node needs to be located, the 3G handset 1 may be moved to the vicinity of the anchor node. And executing corresponding operation in the software window, namely acquiring and storing the anchor node coordinates through the GPS module. After step S6 is completed, the process may return to step S5.
Step S7, in the execution process of step S6, if there is a remote valid user to make a video call, the WSN view service software will start a video call service. After the call ends, the process returns to step S5.
Step S8, if the data of the current sensor network needs to be saved, corresponding operations are executed in the software window, and the data is saved in the form of text on the storage device of the 3G mobile phone 1.
And step S9, quitting after the experiment is finished, and closing the WSN view service software.
The foregoing is a more detailed description of the invention, taken in conjunction with specific preferred embodiments thereof, but is provided by way of example for purposes of illustration only and is not intended to limit the invention to the particular embodiments described. It will be apparent to those skilled in the art that various equivalent changes and substitutions are possible without departing from the spirit of the invention, and it is intended that all such changes and substitutions fall within the scope of the invention.
Claims (10)
1. An application method based on a wireless sensor network is characterized by comprising the following steps:
A. a data conversion and communication module is arranged on a sink node in a wireless sensor network and is in wireless connection with a mobile terminal;
B. the sink node receives environment data which is collected and transmitted by a sensor node in a wireless sensor network, converts the environment data into data with a format which can be accepted by the mobile terminal through the data conversion and communication module and transmits the data to the mobile terminal;
C. and the mobile terminal receives the environment data sent by the sink node and executes application processing on the environment data.
2. The application method of claim 1, wherein the application process comprises storage, display, or remote interaction of environmental data.
3. The application method of claim 1, wherein the mobile terminal is a 3G mobile terminal.
4. The application method according to any one of claims 1 to 3, wherein the mobile terminal comprises a GPS module, and the application method further comprises a node location calibration process:
setting an anchor node in a sensor node;
and calibrating the position of the anchor node through the GPS module.
5. The application method according to any one of claims 1 to 3, wherein the mobile terminal comprises a video module, and the application method further comprises a process of performing video monitoring on a monitoring site in the sensor network by using the video module.
6. An application system based on a wireless sensor network is characterized by comprising a sensor node, a sink node and a mobile terminal; wherein,
the sensor node is used for acquiring environmental data and transmitting the environmental data to the sink node;
the sink node is provided with a data conversion and communication module, and the data conversion and communication module is in wireless connection with the mobile terminal; the sink node is used for receiving the environment data collected and transmitted by the sensor node, converting the environment data into data with a format acceptable by the mobile terminal through the data conversion and communication module and transmitting the data to the mobile terminal;
and the mobile terminal is used for receiving the environment data sent by the sink node and executing application processing on the environment data.
7. The application of claim 6, wherein the data conversion and communication module is a Bluetooth converter.
8. The application system of claim 6, wherein the mobile terminal is a 3G mobile terminal.
9. The application system according to any one of claims 6 to 8, wherein the mobile terminal comprises a GPS module for calibrating a location for an anchor node among the sensor nodes.
10. The application system according to any one of claims 6 to 8, wherein the mobile terminal comprises a video module for video monitoring of a monitoring site in the sensor network.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012034483A1 (en) * | 2010-09-14 | 2012-03-22 | 中兴通讯股份有限公司 | Intelligent home network system, control device and method |
| CN103440747A (en) * | 2013-05-23 | 2013-12-11 | 盐城工学院 | Wireless measurement and control system for grain condition based on multiple networks |
| CN103856749A (en) * | 2012-12-03 | 2014-06-11 | 西安元朔科技有限公司 | Wireless network video monitoring system |
| CN104602191A (en) * | 2015-03-05 | 2015-05-06 | 上海海事大学 | Method for positioning nodes of wireless sensor network for maritime search and rescue |
| CN104867299A (en) * | 2014-02-25 | 2015-08-26 | 深圳市家信通科技开发有限公司 | Wireless sensor data acquisition method |
| CN106839298A (en) * | 2017-01-22 | 2017-06-13 | 美的集团股份有限公司 | Display device, system and method based on widget |
| CN107343052A (en) * | 2017-07-25 | 2017-11-10 | 苏州大学 | The physical distribution monitoring system that a kind of WSN is combined with RFID |
| CN107431889A (en) * | 2015-02-10 | 2017-12-01 | 泰科消防及安全有限公司 | For controlling the method and system of low energy link in wireless sensor network |
| CN109696653A (en) * | 2017-10-23 | 2019-04-30 | 深圳市优必选科技有限公司 | Base station coordinate calibration method and device |
| CN110913361A (en) * | 2019-12-17 | 2020-03-24 | 江苏恒宝智能系统技术有限公司 | Farmland node network system |
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2009
- 2009-03-10 CN CNA2009101061139A patent/CN101500324A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012034483A1 (en) * | 2010-09-14 | 2012-03-22 | 中兴通讯股份有限公司 | Intelligent home network system, control device and method |
| CN103856749A (en) * | 2012-12-03 | 2014-06-11 | 西安元朔科技有限公司 | Wireless network video monitoring system |
| CN103440747A (en) * | 2013-05-23 | 2013-12-11 | 盐城工学院 | Wireless measurement and control system for grain condition based on multiple networks |
| CN104867299A (en) * | 2014-02-25 | 2015-08-26 | 深圳市家信通科技开发有限公司 | Wireless sensor data acquisition method |
| CN107431889A (en) * | 2015-02-10 | 2017-12-01 | 泰科消防及安全有限公司 | For controlling the method and system of low energy link in wireless sensor network |
| CN104602191B (en) * | 2015-03-05 | 2018-01-30 | 上海海事大学 | A kind of maritime search and rescue wireless sensing network node locating method |
| CN104602191A (en) * | 2015-03-05 | 2015-05-06 | 上海海事大学 | Method for positioning nodes of wireless sensor network for maritime search and rescue |
| CN106839298A (en) * | 2017-01-22 | 2017-06-13 | 美的集团股份有限公司 | Display device, system and method based on widget |
| CN107343052A (en) * | 2017-07-25 | 2017-11-10 | 苏州大学 | The physical distribution monitoring system that a kind of WSN is combined with RFID |
| CN107343052B (en) * | 2017-07-25 | 2019-12-27 | 苏州大学 | Logistics monitoring system combining WSN and RFID |
| CN109696653A (en) * | 2017-10-23 | 2019-04-30 | 深圳市优必选科技有限公司 | Base station coordinate calibration method and device |
| CN110913361A (en) * | 2019-12-17 | 2020-03-24 | 江苏恒宝智能系统技术有限公司 | Farmland node network system |
| CN110913361B (en) * | 2019-12-17 | 2022-04-08 | 江苏恒宝智能系统技术有限公司 | Farmland node network system |
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