CN101237369A - A wireless sensor network system for monitoring riverbank security based on obliquity sensor - Google Patents
A wireless sensor network system for monitoring riverbank security based on obliquity sensor Download PDFInfo
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- CN101237369A CN101237369A CNA2008100599737A CN200810059973A CN101237369A CN 101237369 A CN101237369 A CN 101237369A CN A2008100599737 A CNA2008100599737 A CN A2008100599737A CN 200810059973 A CN200810059973 A CN 200810059973A CN 101237369 A CN101237369 A CN 101237369A
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Abstract
The invention discloses a wireless sensor network system based on a tilt sensor for monitoring embankment safety, relating to the wireless sensor network monitoring field. The invention consists of a large quantity of wireless tilt sensor terminals arranged on both sides of an embankment and a plurality of wireless base stations. The wireless tilt sensor terminal comprises a tilt sensor, a single-chip microprocessor and a radiofrequency module; the wireless base station comprises a single-chip microprocessor, a radiofrequency module and a storage unit. The wireless sensor network system realizes effective and real-time safety monitoring to the embankment by monitoring whether the obliquity of the embankment is tilted by the tilt sensors.
Description
Technical field:
The invention belongs to the wireless sense network field, specifically provided a kind of riverbank security and detected wireless sensor network system based on obliquity sensor.
Background technology:
As everyone knows, flood all can take place every year in China.Some flood damage be not simple excessive rainfall, but because dyke breach causes, therefore how effectively monitoring riverbank security becomes a difficult problem.And river levee has very important effect as last one protective barrier of flood control on the protection people life property safety.And at present, still none overlaps effective riverbank security detection system.
Summary of the invention:
The purpose of this invention is to provide a kind of riverbank security and detect wireless sensor network system based on obliquity sensor.
What the present invention will solve is that existing river levee lacks effective problems of monitoring.
For achieving the above object, a kind of riverbank security based on obliquity sensor of the present invention detects wireless sensor network system and comprises: be made up of a large amount of wireless tilt transducer terminals and a plurality of wireless base station, wireless tilt transducer terminal comprises obliquity sensor, single-chip microcomputer and radio-frequency module, and the wireless base station comprises single-chip microcomputer, radio-frequency module and memory cell.
Wireless tilt transducer terminal monitoring riverbank situation, testing result is exported with digital signal, the monitoring result of single-chip microcomputer inquiry obliquity sensor offers radio-frequency module with monitoring result information, and carries out exchanges data with the wireless base station by the mode of radio communication.
The whether run-off the straight of the inclination angle of the present invention by the obliquity sensor monitoring riverbank realizes river levee is carried out effective, real-time safety monitoring.
Description of drawings:
Fig. 1 is the riverbank security Application of Monitoring System scene schematic diagram based on obliquity sensor;
Fig. 2 is based on the riverbank security monitoring sensor network composition diagram of obliquity sensor;
Fig. 3 wireless tilt transducer terminal program flow diagram;
Fig. 4 wireless receiver program flow diagram.
Embodiment:
The invention will be further described below in conjunction with accompanying drawing.
As shown in the figure, the present invention is one and uses and form the multi-hop wireless sensor network system by wireless tilt transducer terminal and wireless base station self-organizing; It is made up of the wireless tilt transducer terminal that is arranged in the river levee two sides in a large number and a plurality of wireless base station.Wireless tilt transducer terminal comprises obliquity sensor, single-chip microcomputer and radio-frequency module, and the wireless base station comprises single-chip microcomputer, radio-frequency module and memory cell.
The wireless base station can send to the information that obtains from wireless tilt transducer terminal on the Internet with information by the TCP/IP interface, and then sends to Surveillance center
Obliquity sensor is used for detecting automatically current two axioversion degree of placing the plane, and testing result is exported with digital signal;
The program of operation is passed through the testing result of the current obliquity sensor output of inquiry in the single-chip microcomputer of wireless tilt transducer terminal, and testing result information is offered radio-frequency module;
The radio-frequency module of wireless tilt transducer terminal and wireless base station carry out exchanges data by the mode of radio communication;
System coordination is responsible in the wireless base station, and the gathering and merge of information, a control to local network also is responsible in the wireless base station in addition, and it links to each other with Internet in addition, responsible data is sent to Surveillance center by the Internet network.
Wireless tilt transducer terminal is behind power-up initializing, add network by other wireless tilt transducer terminal or wireless base station itself that has added network earlier, after successfully adding network, other wireless tilt transducer terminal of receivability adds network, wireless tilt transducer terminal is according to the time of appointment, the testing result of periodic inquiry obliquity sensor, and testing result reported the wireless base station, or by admitting its wireless tilt transducer terminal that adds network that the data relaying is forwarded to the wireless base station before; In addition, wireless tilt transducer terminal also wants relaying to transmit the data of route through this node.
Behind the wireless base station electrifying startup, set up one oneself to be the wireless network of administrative center, and begin to admit wireless tilt transducer terminal to add network, the wireless base station is according to the fixed time, periodic maintaining network is removed the inefficacy routing iinformation, adds newly-increased routing iinformation, the data that all wireless tilt transducer terminals report are collected in the wireless base station, 255 wireless tilt transducers of the maximum receivabilities in wireless base station terminal.
All work behind electrifying startup of wireless tilt transducer terminal and wireless base station all need not human configuration, can dynamically adjust route, so network is that self-organizing forms.
The reported data of wireless tilt transducer terminal may be directly to send to the wireless base station, also may be to transmit through the relaying of some wireless tilt transducer terminals to be transferred to the wireless base station afterwards, so network is a multi-hop.
The present invention can be laid in wireless tilt transducer terminal on the river levee two sides flexibly according to the river course situation, and the data that wireless tilt transducer terminal produces can be sent on the wireless base station by this chain-shaped network.
Wireless transmission among the present invention adopts data validation mechanism; The transmit leg of data needs to wait for to receive and sends out the acknowledgement frame that returns, to confirm that the recipient receives this Frame after sending Frame; If at the appointed time, transmit leg is not received the acknowledgement frame that the recipient returns, and transmit leg will be retransmitted this Frame, until the acknowledgement frame about this Frame of receiving that the recipient returns.The channel that adopts the band conflict to avoid in wireless transmission intercepts that mechanism is effectively avoided because the collision conflict that shared wireless channel produces; Before wireless tilt transducer terminal sent data, wireless tilt transducer terminal was intercepted the channel busy spare time earlier, if channel idle then sends immediately; If channel is then intercepted the channel busy spare time after random back a period of time for busy again, if channel idle then sends immediately; If channel still for busy, is then intercepted the channel busy spare time after random back a period of time again, when listening to channel idle, send.
Now application scenarios of the present invention is described according to Fig. 1.Circle among the figure represents to be laid in the wireless tilt transducer terminal that is connected with obliquity sensor of river levee two sides, and triangle is represented the wireless base station, and several wireless tilt transducer terminals are responsible in a wireless base station.These wireless tilt transducer terminals are used to monitor local river levee situation, their understand search network immediately in case power on, in case added network, these wireless tilt sensor side chances report to wireless base station through a multi-hop or a jumping with local monitoring information according to regular hour frequency and certain path.
The radio-frequency module operating frequency of all wireless tilt transducer terminals and wireless base station is 433MHz, bandwidth is 64MHz, message transmission rate and adjustable power, peak transfer rate 500kbps, maximum transmission power 0dBm, the wireless transmission distance maximum when being laid in the face of land can arrive 300m.
Claims (5)
1. the riverbank security based on obliquity sensor detects wireless sensor network system, this system is made up of the wireless tilt transducer terminal that is arranged in the river levee two sides in a large number and a plurality of wireless base station, it is characterized in that wireless tilt transducer terminal comprises obliquity sensor, single-chip microcomputer and radio-frequency module, and the wireless base station comprises single-chip microcomputer, radio-frequency module and memory cell;
Obliquity sensor is used for detecting automatically current two axioversion degree of placing the plane, and testing result is exported with digital signal;
The program of operation is passed through the testing result of the current obliquity sensor output of inquiry in the single-chip microcomputer of wireless tilt transducer terminal, and testing result information is offered radio-frequency module;
The radio-frequency module of wireless tilt transducer terminal and wireless base station carry out exchanges data by the mode of radio communication;
System coordination is responsible in the wireless base station, and the gathering and merge of information, a control to local network also is responsible in the wireless base station in addition, and it links to each other with Internet in addition, responsible data is sent to Surveillance center by the Internet network.
2. the wireless sensor network system of a kind of riverbank security based on obliquity sensor according to claim 1 is characterized in that system adopts the multi-hop wireless sensor network of forming by wireless tilt transducer terminal and wireless base station self-organizing;
Wireless tilt transducer terminal is behind power-up initializing, add network by other wireless tilt transducer terminal or wireless base station itself that has added network earlier, after successfully adding network, other wireless tilt transducer terminal of receivability adds network, wireless tilt transducer terminal is according to the time of appointment, the testing result of periodic inquiry obliquity sensor, and testing result reported the wireless base station, or by admitting its wireless tilt transducer terminal that adds network that the data relaying is forwarded to the wireless base station before; In addition, wireless tilt transducer terminal also wants relaying to transmit the data of route through this node;
Behind the wireless base station electrifying startup, set up one oneself to be the wireless network of administrative center, and begin to admit wireless tilt transducer terminal to add network, the wireless base station is according to the fixed time, periodic maintaining network is removed the inefficacy routing iinformation, adds newly-increased routing iinformation, the data that all wireless tilt transducer terminals report are collected in the wireless base station, 255 wireless tilt transducers of the maximum receivabilities in wireless base station terminal;
All work behind electrifying startup of wireless tilt transducer terminal and wireless base station all need not human configuration, can dynamically adjust route, so network is that self-organizing forms;
The reported data of wireless tilt transducer terminal may be directly to send to the wireless base station, also may be to transmit through the relaying of some wireless tilt transducer terminals to be transferred to the wireless base station afterwards, so network is a multi-hop.
3. the wireless sensor network system of a kind of riverbank security based on obliquity sensor according to claim 1, can flexibly wireless tilt transducer terminal be laid on the river levee two sides according to the river course situation when it is characterized in that this system, the data that wireless tilt transducer terminal produces can be sent on the wireless base station by this chain-shaped network.
4. the wireless sensor network system of a kind of riverbank security based on obliquity sensor according to claim 1 is characterized in that the wireless transmission in this system adopts data validation mechanism; The transmit leg of data needs to wait for to receive and sends out the acknowledgement frame that returns, to confirm that the recipient receives this Frame after sending Frame; If at the appointed time, transmit leg is not received the acknowledgement frame that the recipient returns, and transmit leg will be retransmitted this Frame, until the acknowledgement frame about this Frame of receiving that the recipient returns.
5. the wireless sensor network system of a kind of riverbank security based on obliquity sensor according to claim 1 is characterized in that the channel that adopts the band conflict to avoid intercepts that mechanism is effectively avoided because the collision conflict that shared wireless channel produces in wireless transmission; Before wireless tilt transducer terminal sent data, wireless tilt transducer terminal was intercepted the channel busy spare time earlier, if channel idle then sends immediately; If channel is then intercepted the channel busy spare time after random back a period of time for busy again, if channel idle then sends immediately; If channel still for busy, is then intercepted the channel busy spare time after random back a period of time again, when listening to channel idle, send.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100599737A CN101237369A (en) | 2008-03-05 | 2008-03-05 | A wireless sensor network system for monitoring riverbank security based on obliquity sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100599737A CN101237369A (en) | 2008-03-05 | 2008-03-05 | A wireless sensor network system for monitoring riverbank security based on obliquity sensor |
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| CN101237369A true CN101237369A (en) | 2008-08-06 |
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| CNA2008100599737A Pending CN101237369A (en) | 2008-03-05 | 2008-03-05 | A wireless sensor network system for monitoring riverbank security based on obliquity sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104469790A (en) * | 2014-12-11 | 2015-03-25 | 中煤科工集团重庆研究院有限公司 | Node arrangement method for improving link transmission reliability in chain wireless sensor network |
| CN104567830A (en) * | 2015-01-22 | 2015-04-29 | 泉州市迈韦通信技术有限公司 | Wireless communication system with method for realizing hydrological monitoring through frequency band deploying |
-
2008
- 2008-03-05 CN CNA2008100599737A patent/CN101237369A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104469790A (en) * | 2014-12-11 | 2015-03-25 | 中煤科工集团重庆研究院有限公司 | Node arrangement method for improving link transmission reliability in chain wireless sensor network |
| CN104469790B (en) * | 2014-12-11 | 2018-01-30 | 中煤科工集团重庆研究院有限公司 | The inserting knot method of link transmission reliability is improved in chain wireless sensor network |
| CN104567830A (en) * | 2015-01-22 | 2015-04-29 | 泉州市迈韦通信技术有限公司 | Wireless communication system with method for realizing hydrological monitoring through frequency band deploying |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: CAS JIAXING WIRELESS SENSOR NETWORK ENGINEERING CE Free format text: FORMER OWNER: CAS JIAXING CENTER MICROSYSTEMS INTITUTE BRANCH CENTER Effective date: 20100129 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20100129 Address after: No. 2, building 1, No. 778 Asia Pacific Road, Nanhu District, Zhejiang, Jiaxing Applicant after: Jiaxing Wireless Sensor Network Engineering Center, Chinese Academy of Sciences Address before: A building, block four, Asia Pacific Road, Nanhu District, Jiaxing, Zhejiang, Applicant before: Microsystem Inst. Branch Center, Jiaxing Center, CAS |
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| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20080806 |