CN202583778U

CN202583778U - Node module with positioning function for raindrop sensor

Info

Publication number: CN202583778U
Application number: CN 201220254213
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: 2012-05-31
Filing date: 2012-05-31
Publication date: 2012-12-05
Anticipated expiration: 2022-05-31

Abstract

A node module with a positioning function for a raindrop sensor is used for detecting the existence of water, raindrop and other liquids on the surface of an object in a precise spatial position, and can be used for automatic control of doors and windows of unattended computer rooms and guesthouse skyscrapers, as well as various freight yards and the like. The node module comprises an ATmega8L controller (1), a raindrop detection and acquisition circuit (2), a GPS (Global Positioning System) positioning module (3), a communication interface connector (4) and a power supply circuit (5). The node module provided by the utility model utilizes the raindrop sensor, the GPS positioning module and a singlechip to achieve automatic control of doors and windows of various places, and has the characteristics of simple structure, low cost, easiness in popularization and the like.

Description

The Raindrop sensor node module that has positioning function

Technical field

The utility model relates to a kind of Raindrop sensor node module that has positioning function; Whether the body surface that adopts 8 8-digit microcontrollers, SSM-002 type Raindrop sensor and GPS locating module to detect under the accurate locus specifically has liquid such as water, raindrop, with the automatic control in the door and window of the machine room of realizing unattended duty, hotel high building and various goods yards etc.

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

The utility model technical matters to be solved is, a kind of with low cost, simple in structure, Raindrop sensor node module that has positioning function of being easy to promote is provided.

The technical scheme that the utility model adopted is: a kind of Raindrop sensor node module that has positioning function, have controller, and comprise that also the raindrop that link to each other with controller detect 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.

Whether described raindrop detect Acquisition Circuit and link to each other with an ADC interface of controller, are used to measure the change in voltage that causes owing to the Raindrop sensor resistance variations, thereby have liquid such as water, raindrop to exist according to change in voltage judgment object surface.

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 the entire block diagram of the utility model;

Fig. 2 is that the utility model raindrop detect Acquisition Circuit and controller connection layout;

Fig. 3 is the utility model GPS locating module circuit theory diagrams;

Fig. 4 is the utility model 50 pin communication interface connector schematic diagrams;

Fig. 5 is the power circuit principle figure of the utility model.

Embodiment

Below in conjunction with accompanying drawing and instance the utility model is described further.

The Raindrop sensor node module that has positioning function of the utility model; Adopt SSM-002 type Raindrop sensor, GPS locating module whether liquid such as water, raindrop to be arranged, with the automatic control in the door and window of the machine room of realization unattended duty, hotel high building and various goods yards etc. with the body surface that 8 8-digit microcontrollers detect under the accurate locus.

As shown in Figure 1, the Raindrop sensor node module that has positioning function of the utility model has controller (1), comprises that also the raindrop that link to each other with controller detect 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, raindrop.

As shown in Figure 2; Raindrop detect Acquisition Circuit and are made up of SSM-002 type Raindrop sensor; This Raindrop sensor is equivalent to a variable resistor; Link to each other with an ADC interface of controller, thereby whether the judgment object surface has liquid such as water, raindrop to exist through the change in voltage at survey sensor two ends.

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 Raindrop sensor node module that has positioning function of the utility model 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 Raindrop sensor node module that has positioning function of the utility model 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 Raindrop sensor node module that has positioning function has controller (1), it is characterized in that, comprises that also the raindrop that link to each other with controller (1) detect 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 Raindrop sensor node module that has positioning function according to claim 1; It is characterized in that: described raindrop detect Acquisition Circuit (2) and link to each other with an ADC mouth of controller (1), are used to measure because the change in voltage that the Raindrop sensor resistance variations causes.

3. the Raindrop sensor 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 Raindrop sensor 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.