CN102707302A

CN102707302A - Atmospheric pressure sensor node module with positioning function

Info

Publication number: CN102707302A
Application number: CN201210174095XA
Authority: CN
Inventors: 吴兴利; 田立国; 李猛; 陈志亮
Original assignee: Tianjin University of Technology
Current assignee: Tianjin University of Technology
Priority date: 2012-05-29
Filing date: 2012-05-29
Publication date: 2012-10-03

Abstract

The invention discloses an atmospheric pressure sensor node module with a positioning function. The atmospheric pressure sensor node module is used for measuring atmospheric pressure in surrounding environment at an accurate spatial position and widely applied to weather forecast systems, global positioning system (GPS) receivers and the fields of medical treatment, sports and the like. The node module comprises an ATmega8L controller (1), an atmospheric pressure detection acquisition circuit (2), a GPS positioning module (3), a communication interface connector (4) and a power circuit (5). By using an atmospheric pressure sensor, the GPS positioning module and a singlechip, the atmospheric pressure in the surrounding environment at the accurate spatial position can be measured. The atmospheric pressure sensor node module has the characteristics of simple structure, low cost and the like, and is easy to popularize.

Description

The baroceptor node module that has positioning function

Technical field

The present invention relates to a kind of baroceptor node module that has positioning function; Adopt 8 8-digit microcontrollers, baroceptor and GPS locating module to realize the numeral output of the atmospheric pressure in the surrounding environment under the accurate locus specifically, can be used for fields such as weather forecast system, GPS receiver and medical treatment, physical culture.

Background technology

Along with the widespread use of information acquisition and intelligence computation technology rapid development and internet and mobile radio communication, technology of Internet of things has obtained application in fields such as industry, agricultural, service sector, environmental protection, traffic.Sensor technology is the basis of Internet of Things; Internet of Things will rely on sensor as data input pin; Through various sensor acquisition or obtain natural various physical quantity, chemistry amount, biomass etc., thereby raising realizes intelligentized decision-making and control to intramundane perception.

The english abbreviation of range-finding navigation/GPS (Navigation Satellite Timing And Ranging/Global Positioning System) was called for short " GPS " when GPS (Global Positioning System) was the satellite survey.This system is to be the radio-navigation positioning system on basis with the satellite; Have navigation, location and the function regularly of totipotency (land, ocean, aerospace), global, round-the-clock, continuity and real-time, can be provided accurate three-dimensional coordinate, speed and the time for all types of user.GPS equipment can provide spatial positional information accurately, and GPS technology is combined with sensor technology, technology of Internet of things, when obtaining the information of same that sensor exports, obtains spatial positional information synchronously, thereby helps the popularization of technology of Internet of things.

Wireless sensor network technology is as a gordian technique in the Internet of Things; The information of various environment or monitoring target in monitoring in real time synergistically, perception and the collection network overlay area; And it is handled; Information after the processing is sent through wireless mode, and sends the observer to the network mode of organizing multi-hop certainly.A kind of as in the wireless sensor network technology of ZigBee technology has characteristics such as cost is low, low in energy consumption, network capacity is big, data transmission is reliable, is of wide application.

Summary of the invention

Technical matters to be solved by this invention is, a kind of with low cost, simple in structure, baroceptor node module that has positioning function of being easy to promote is provided.

The technical scheme that the present invention adopted is: a kind of baroceptor node module that has positioning function, have controller, and comprise that also the air pressure that links to each other with controller detects Acquisition Circuit; The GPS locating module that is used to provide accurate locus that links to each other with controller; The communication interface connector that is used to carry out data transmission and function expansion that links to each other with controller.

Described air pressure detects Acquisition Circuit and links to each other through twin wire universal serial bus I2C communication interface with controller, realizes the collection and numeral output of data.

Described GPS locating module links to each other with the I/O mouth of controller, adopts the simulative serial port sequential to receive the coordinate information of GPS locating module output.

Described communication interface connector links to each other with the I/O mouth with the serial ports of controller, and the transmission that is used for data perhaps links to each other with the ZigBee gusset plate and carries out function expansion, forms a node in the wireless sensor network.

Description of drawings

Fig. 1 is an entire block diagram of the present invention;

Fig. 2 is that air pressure of the present invention detects the Acquisition Circuit schematic diagram;

Fig. 3 is GPS locating module circuit theory diagrams of the present invention;

Fig. 4 is the present invention's 50 pin communication interface connector schematic diagrams;

Fig. 5 is power circuit principle figure of the present invention.

Embodiment

Below in conjunction with accompanying drawing and instance the present invention is described further.

The baroceptor node module that has positioning function of the present invention; Adopt baroceptor, GPS locating module and 8 8-digit microcontrollers to realize the numeral output of the atmospheric pressure in the surrounding environment under the accurate locus, can be used for fields such as weather forecast system, GPS receiver and medical treatment, physical culture.

As shown in Figure 1, the baroceptor node module that has positioning function of the present invention has controller (1), comprises that also the air pressure that links to each other with controller detects Acquisition Circuit (2); The GPS locating module (3) that is used to provide accurate locus that links to each other with controller; The communication interface connector (4) that is used for data transmission and function expansion that links to each other with controller; Detect the power circuit that is used to provide power supply (5) that Acquisition Circuit links to each other with controller, air pressure.

As shown in Figure 2, air pressure detects Acquisition Circuit is carried out atmospheric pressure under the surrounding environment through twin wire universal serial bus I2C communication interface collection and numeral output.

As shown in Figure 3, the GPS locating module adopts global positioning satellite receiving chip Gstar series GS-89 to form, and is continuous through the I/O mouth of controller, adopts the simulative serial port sequential to accomplish the reception of gps coordinate information.

As shown in Figure 4; The baroceptor node module that has positioning function of the present invention has the communication interface connector of 50 pins; Link to each other with the I/O mouth with the serial ports of controller; Be used for the transmission or the continuous function expansion of carrying out of ZigBee gusset plate of data, form a node in the wireless sensor network.

As shown in Figure 5, the baroceptor node module that has a positioning function of the present invention is owing to adopt battery or externally fed dual mode that power supply is provided, so switch through switch, BL8530-3.3V boosts and carries out power supply when chip is used for powered battery and boost; AMS1117-3.3V lowering and stabilizing blood pressure chip carries out the step-down and the voltage stabilizing of power supply when being used for externally fed.

Claims

1. a baroceptor node module that has positioning function has controller (1), it is characterized in that, comprises that also the air pressure that links to each other with controller (1) detects Acquisition Circuit (2); The GPS locating module (3) that links to each other with controller (1); The communication interface connector (4) that links to each other with controller (1).

2. the baroceptor node module that has positioning function according to claim 1; It is characterized in that: described air pressure detects Acquisition Circuit (2) and links to each other through twin wire universal serial bus I2C communication interface with controller (1), realizes the collection and numeral output of data.

3. the baroceptor node module that has positioning function according to claim 1 is characterized in that: described GPS locating module (3) links to each other with the I/O mouth of controller (1), adopts the simulative serial port sequential to receive the coordinate information of GPS locating module output.

4. the baroceptor node module that has positioning function according to claim 1 is characterized in that: described communication interface connector (4) links to each other with the I/O mouth with the serial ports of controller (1), is used for the transmission and the function expansion of data.