CN104469900A - Wireless sensor network - Google Patents
Wireless sensor network Download PDFInfo
- Publication number
- CN104469900A CN104469900A CN201310420840.9A CN201310420840A CN104469900A CN 104469900 A CN104469900 A CN 104469900A CN 201310420840 A CN201310420840 A CN 201310420840A CN 104469900 A CN104469900 A CN 104469900A
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- CN
- China
- Prior art keywords
- sensor network
- wireless sensor
- temperature sensors
- gateway unit
- wireless
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Transceivers (AREA)
Abstract
The invention discloses a wireless sensor network, and relates to an improvement on a wireless sensor network. The invention provides a wireless sensor network, which is low in power consumption and supports the adoption of a wireless communication module. The wireless sensor network comprises a gateway unit, a control center and a central database. The wireless sensor network is structurally characterized in that two temperature sensors and one sensor are connected with the gateway unit through wireless sensor network terminals respectively; and the other ends of the two temperature sensors and the sensor are connected with a medium-voltage circuit breaker, a measurement and control object and a navigation disk respectively.
Description
Technical field
the present invention relates to a kind of improvement of wireless sensor network.
Background technology
electric power factory equipment monitoring system provides various parameters, data, the information such as switching value and analog quantity of field apparatus for Power Plant Monitoring, according to these information analyzing equipment states, perform open loop, closed-loop control and adjustment, equipment fault and accident to be reported to the police and canopy should process, ensure respectively not to be in optimized operation state.The exception of controller switching equipment the present situation and checkout equipment can be assessed by online temperature monitoring system, technical specification and the grade of adjustment equipment can also be helped, determine actual limit and the Optimum Operation of monitored device.The existing sensor network power consumption be applied in controller switching equipment monitoring is high, and accuracy is low and production cost is high.
Summary of the invention
the present invention is exactly for the problems referred to above, provides a kind of low-power consumption, can adopt a kind of wireless sensor network of wireless communication module.
to achieve these goals, the present invention adopts following technical scheme, the present invention includes gateway unit, control centre and central database, its structural feature is: two temperature sensors are connected with gateway unit respectively by wireless sensor network middle-end with a transducer; Two temperature sensors are connected with navigation disk respectively at medium voltage breaker, observing and controlling object with the other end of transducer.
as a kind of preferred version, the CC2420 chip of Chipcon company is selected to realize radio communication function.
beneficial effect of the present invention.
1, low in energy consumption.
with regard to low-power consumption, MSP430F1XX MCU series acts is very outstanding.Processor module has selected the microprocessor MSP430F169 of TI company.The current drain that it provides industry lower, operating voltage is 1.8V, and the consumption instrument of real-time clock standby current is 1.1 uA, and operational mode electric current is low to moderate 300 tlA, only needs 6ps from dormancy to the whole wakeup process of normal work.The requirement of system real time height and low-power consumption can be met.MSP430F169 has 6 mode of operations, and when idle (IDLE) pattern, CPU and internal clocking are isolated, but interrupt system, timer still work, at this moment consume very small area analysis, generally at the microampere order of magnitude, therefore can meet the long term monitoring requirement of system.
2, wireless communication module can be adopted.
the present invention selects the CC2420 chip of Chipcon company to realize radio communication function herein.CC2420 provides hardware supports widely for packets of information process, data buffer, transmitting, data encryption, digital proof, clear channel assessment (CCA), link-quality instruction and packets of information real time data, these features reduce the workload of master controller, and CC2420 can be connected with low cost micro-place a kind of jade device.The radiofrequency signal of CC2420 adopts differential mode, and its best differential load is 115+j180Q, and impedance matching circuit needs to adjust according to this numerical value.The design adopts 50Q monopole antenna, and impedance matching circuit adopts Ba Lun (BALUN).Balun circuit is made up of inductance with low cost and electric capacity, and wherein inductance is also for the low noise amplifier of chip internal and power amplifier provide direct current biasing.
Accompanying drawing explanation
for technical problem solved by the invention, technical scheme and beneficial effect are clearly understood, below in conjunction with the drawings and the specific embodiments, the present invention is further elaborated.Should be appreciated that embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
fig. 1 is principle of the invention block diagram.
Embodiment
as shown in the figure, the present invention adopts following technical scheme, the present invention includes gateway unit, control centre and central database, and two temperature sensors are connected with gateway unit respectively by wireless sensor network middle-end with a transducer; Two temperature sensors are connected with navigation disk respectively at medium voltage breaker, observing and controlling object with the other end of transducer.
the CC2420 chip of Chipcon company is selected to realize radio communication function.
design of Software Platform.
the cost of node and energy method of supplying are 2 main performance index of wireless sensor network, and designing based on the wireless sensor network of energy Long-Time Service under electric power system occasion is the key issue that physical layer protocol needs to consider.Wireless sensor network media interviews control (MAC) layer require low energy consumption, low communication postpone and can dynamic expansion.Analyze the mobility of wireless sensing node under considering electric power system background, design the network topology structure adapted.The purpose of design of software platform is that network-oriented layer and application layer provide the service of platform and meet the protocol stack of IEEE802.15.4 consensus standard, like this, in routing algorithm, can IEEE802.15.4 part be considered as transparent, the code that only exploitation is relevant with upper strata.Node software platform specific design target is as follows: the API (API) utilizing platform to provide, and carries out seven layers of application and development fast, builds the wireless sensor network being applied to specific occasion, uses at engineer applied and academic research occasion; Utilize usb communication API, carry out the communication between node and PC easily, facilitate the debugging efforts of user in development and application process; Utilize other unit modules of platform, node realizes the communication protocol schemes of oneself.
above content is the further description done the present invention in conjunction with concrete preferred implementation; can not assert that specific embodiment of the invention is confined to these explanations; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; some simple deduction or replace can also be made, all should be considered as belonging to the protection range that claims that the present invention submits to are determined.
Claims (2)
1. wireless sensor network comprises gateway unit, control centre and a central database, it is characterized in that two temperature sensors are connected with gateway unit respectively by wireless sensor network middle-end with a transducer; Two temperature sensors are connected with navigation disk respectively at medium voltage breaker, observing and controlling object with the other end of transducer.
2. a kind of wireless sensor network according to claim 1, is characterized in that the CC2420 chip selecting Chipcon company realizes radio communication function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310420840.9A CN104469900A (en) | 2013-09-16 | 2013-09-16 | Wireless sensor network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310420840.9A CN104469900A (en) | 2013-09-16 | 2013-09-16 | Wireless sensor network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104469900A true CN104469900A (en) | 2015-03-25 |
Family
ID=52915085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310420840.9A Pending CN104469900A (en) | 2013-09-16 | 2013-09-16 | Wireless sensor network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104469900A (en) |
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2013
- 2013-09-16 CN CN201310420840.9A patent/CN104469900A/en active Pending
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
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| WD01 | Invention patent application deemed withdrawn after publication |