CN204695537U - Based on the environmental quality monitoring equipment of WSN - Google Patents

Abstract

The utility model discloses a kind of environmental quality monitoring equipment based on WSN.Comprise ZigBee radio sensing network, internet and user monitoring center; Sensor monitoring node, telegon and host computer form ZigBee radio sensing network jointly; The module that described Sensor monitoring node comprises mainly contains MSP430G2553 main control module, ZigBee transparent transmission, DHT11 Temperature Humidity Sensor module, optics dust sensor module and optical sensor module based on CC2530.The utility model is by the humiture of three kinds of sensor Real-time Collection surrounding environment, illumination and dust parameter, user directly just can complete the environmental monitoring to target area by the corresponding network address of the computer to access of connecting Internet, there is the randomness of guarded region, extensibility, easy for installation, the feature such as easy to maintenance and control real-time.

Description

Based on the environmental quality monitoring equipment of WSN

Technical field

The utility model relates to a kind of device of environmental quality monitoring, particularly relates to a kind of device utilizing the environmental quality monitoring of WSN.

Background technology

Environment is the necessary condition that the mankind depend on for existence, and the quality of environmental quality is directly connected to the healthy of people.Particularly in some medium-and-large-sized cities, environmental quality has included the mark for weighing this city's synthetic power in.Although along with China is to the attention of environmental monitoring, environment department can send environmental information in real time to all citizens, but there is the regional differences of environment, often these environmental datas can not represent local environment actual conditions well, so design a set of region system that is indoor or surrounding enviroment of can measuring to seem particularly important.

Current environmental quality monitoring systems most relies on wire transmission, compared with traditional environmental quality monitoring system, use ZigBee wireless sense network have sensor node arrange the expansivity of random, sensor node quantity, sensor network communication without the feature such as linear.Overcome the difficult wiring of traditional environment monitoring system, the defects such as maintenance difficult and extendability difference.

Summary of the invention

The utility model is exactly the weak point for existing enviromental monitoring equipment, provides the environmental quality monitoring equipment of a kind of employing based on WSN.

For achieving the above object, the utility model provides following technical scheme.

Environmental quality monitoring equipment is primarily of three part compositions: ZigBee radio sensing network, internet and user monitoring center; Sensor monitoring node, telegon and host computer form ZigBee radio sensing network jointly.

The module that described Sensor monitoring node comprises mainly contains MSP430G2553 main control module, ZigBee transparent transmission, DHT11 Temperature Humidity Sensor module, optics dust sensor module and optical sensor module based on CC2530.

In MSP430G2553 main control module, P1.0 interface connects luminotron LED1, in main control module, P1.1 interface and P1.2 interface are respectively serial communication interface TX and RX of main control module, wherein interface P1.1 connects No. 2 port RX of ZigBee transparent transmission, and interface P1.2 connects No. 3 port TX of ZigBee transparent transmission.Interface P1.5 connects the Vin port of optical sensor module, interface P1.7 connecting valve.Interface P2.1 connects No. 3 interfaces of optics dust sensor module, and P2.2 connects the DATA interface of DH11 Temperature Humidity Sensor module.

The chip that described ZigBee transparent transmission adopts is that CC2530F256, ZigBee transparent transmission interface 1 connects VCC interface, and interface 2 connects the interface 2 of main control module, and interface 3 connects the interface 3 of main control module, and interface 4 connects GND interface.

Described optics dust sensor module adopts Sharp optics dust sensor GP2Y1010AU0F, this module provides six interfaces, and wherein No. 1 interface and No. 2 interfaces are the energization pins of infrared emission tube, and No. 1 connects VCC interface, No. 2 connect GND interface, No. 3 interfaces are the control pin of infrared-emitting diode, and No. 3 interfaces connect No. 6 interfaces of main control module, and No. 5 interfaces are signal output interface, connect No. 4 interfaces of main control chip, No. 6 interfaces provide voltage for module, meet VCC, and No. 4 interfaces meet GND.

Described DHT11 Temperature Humidity Sensor module only has four interfaces, and wherein have an interface for empty, then remaining three usable interfaces, wherein No. 1 interface connects VCC, and No. 2 DATA interfaces connect the P2.2 of main control module, and No. 3 interfaces connect GND.

Described optical sensor module comprises photosensitive resistance sensor, photosensitive resistance sensor is connected after a resistance and is connected to both ends of power, the change of light intensity causes the resistance change of photosensitive resistance sensor, and voltage output end Vin connects No. 4 P1.5 interfaces of main control module.

After the utility model adopts technique scheme, there is following effect: the utility model is by the humiture of three kinds of sensor Real-time Collection surrounding environment, illumination and dust parameter, user directly just can complete the environmental monitoring to target area by the corresponding network address of the computer to access of connecting Internet, there is the randomness of guarded region, extensibility, easy for installation, the feature such as easy to maintenance and control real-time.

The utility model goes for indoor and the monitoring of outdoor environment among a small circle, and user can make corresponding judgement by webpage Monitoring Data, and can control arbitrary node and open or close.

Accompanying drawing explanation

Fig. 1 is environmental quality monitoring system application schematic diagram;

Fig. 2 is monitoring node composition structural representation;

Fig. 3 is MSP430G2553 main control module schematic diagram;

Fig. 4 is the ZigBee transparent transmission schematic diagram based on CC2530;

Fig. 5 is optics dust sensor module diagram;

Fig. 6 is DHT11 Temperature Humidity Sensor module diagram;

Fig. 7 is optical sensor module schematic diagram.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, a kind of environmental quality monitoring system based on WSN contains Sensor monitoring node, telegon and host computer, router, internet and user terminal computer.Sensor monitoring node, telegon and host computer constitute ZigBee radio sensing network jointly, and wherein telegon and host computer and ZigBee-IP gateway are the entrances that radio sensing network and internet join.

As shown in Figure 2, the utility model monitoring node structure comprises main control module 2-1, optics dust sensor module 2-2, DHT11 Temperature Humidity Sensor module 2-3, optical sensor module 2-4, ZigBee transparent transmission 2-5, Anneta module 2-6.

As shown in Figure 3, main control module is the MSP430G2553 single-chip microcomputer of TI company, 430 series monolithics are suitable for use in the system of low-power consumption very much, the requirement that the utility model needs low-power consumption to work long hours as a kind of environmental monitoring system, adopt this series monolithic just in time to satisfy the demands.Main control module provides expansion interface as processor for other sensors and equipment, as provided external serial communication interface RX and TX, and 16 digital I/O interfaces and 8 analog to digital conversion ADC interfaces etc.VCC interface provides power supply for other sensor assemblies and ZigBee module, and P1.1 and P1.2 is serial communication interface RX and TX, connects TX and the RX of ZigBee transparent transmission respectively, as the transmission channel of data.P2.1 connects No. 3, optics dust sensor module and controls pin, and the control signal that main control module exports has to pass through the work that effectively can drive infrared transmitting tube after triode amplifies.And require that input signal is square wave, the cycle is 10ms, and high level time is about 320us.The P1.5 interface of main control chip connects No. 3 signal output interfaces of optics dust sensor module No. 5 signal output pins and optical sensor module respectively.P1.5 interface gathers magnitude of voltage that two modules export successively to carry out quantification in a program and converts corresponding air atom concentration and illumination intensity value to and transfer to ZigBee-network by main control module through ZigBee transport module, finally be sent to internet by router, user can at any time place in the data of internet access sensor.P2.2 connects No. 2 DATA interfaces of DHT11 Temperature Humidity Sensor module.GND interfacing ground.

As shown in Figure 4, ZigBee transparent transmission adopts the CC2530F256 chip of TI.Integrated chip a high performance radio-frequency (RF) transceiver and 8051 kernel single-chip microcomputers, have the flash of RAM and 32k-256k of reduced instruction set computer and 8kb.Chip has conventional peripheral hardware, as dma controller, and timer and serial ports, but only need carry out the establishment of network and the transmission of data with it, so four interfaces wherein only need be used in the present embodiment.Wherein interface 1 is connected with main control module VCC provides power supply, and interface 4 connects GND ground connection, and interface 2 and interface 3 are respectively the transceiver interface of serial communication, P1.2 and P1.1 of point connection main control chip.

As shown in Figure 5, optics dust sensor module adopts Sharp's optics dust sensor (GP2Y1010AU0F), and having the electronic component that two crucial in sensor, is infrared emission tube and high-sensitive photo-sensitive cell respectively.This sensor bulk is less, and sensitivity is very high, can be used for the minitype particle thing of measurement more than 0.8 micron.Wherein No. 1 interface and No. 6 interfaces are respectively infrared transmitting tube and sensor assembly provides power supply, and in order to power to infrared-emitting diode, a current-limiting resistance of must connecting between No. 1 V-LED and No. 6 VCC, burns to prevent infrared-emitting diode.No. 1 V-LED and No. 2 GND-LED is the energization pins of infrared emission tube, in order to prevent supply voltage unstable, need the electric capacity at these two leads ends 220uF in parallel, No. 3 LED are by control module input control signal, No. 5 V0 are signal output interface, connect main control module P1.5, No. 5 interfaces export the maximum analog magnitude of voltage of pulse, proportional with the suspended particulate matter concentration detected.No. 4 interfaces meet GND.

As shown in Figure 6, DHT11 Temperature Humidity Sensor module have employed a kind of digital signal sensors, is integrated with 8 single-chip microcomputers and electric resistance moisture sensing element and NTC temperature element, improves stability and antijamming capability compared to traditional thermistor inside modules.Wherein No. 1 interface connection is connected with main control module VCC provides power supply, No. 2 DATA interfaces are connected with the P2.2 of main control module, because the data output pins fan-out capability of DHT11 temperature and humidity sensing is more weak, so must communicate with single-chip microcomputer by the mode of the pull-up resistor of a 5K, No. 3 interfaces meet GND.

As shown in Figure 7, optical sensor module circuit is simple, only need connect after a 5.1K resistance and be connected to both ends of power, Vin end connects the P1.5 interface of main control module, the change of light intensity causes the resistance change of photosensitive resistance sensor, thus the voltage detecting photoresistance two ends the magnitude of voltage at photoresistance two ends changed, as long as just can detect the change of ambient light intensity.

The mode of operation of whole system is: the PANID that ZigBee telegon generates sets up ZigBee-network, and Sensor monitoring node searching mates PANID with self and joins this network.Environmental aspect data around sensor node Real-time Collection: humiture, suspended particulate matter concentration and intensity of illumination, and the data collected are sent to ZigBee-IP gateway by wireless link.ZigBee-IP gateway is sent to internet by router after receiving data, and user carrys out the real time environment situation around real-time monitoring sensing device node by internet.

Below the preferred embodiment that the utility model is created is illustrated, but the utility model is not limited to embodiment, those of ordinary skill in the art also can carry out all equivalent modification or replacement under the prerequisite without prejudice to the utility model creative spirit, and these equivalent modification or replacement are all included in the scope of the application.

Claims (1)

1., based on the environmental quality monitoring equipment of WSN, comprise ZigBee radio sensing network, internet and user monitoring center; Sensor monitoring node, telegon and host computer form ZigBee radio sensing network jointly; It is characterized in that:

The module that described Sensor monitoring node comprises mainly contains MSP430G2553 main control module, ZigBee transparent transmission, DHT11 Temperature Humidity Sensor module, optics dust sensor module and optical sensor module based on CC2530;

In MSP430G2553 main control module, P1.0 interface connects luminotron LED1, in main control module, P1.1 interface and P1.2 interface are respectively serial communication interface TX and RX of main control module, wherein interface P1.1 connects No. 2 port RX of ZigBee transparent transmission, and interface P1.2 connects No. 3 port TX of ZigBee transparent transmission; Interface P1.5 connects the Vin port of optical sensor module, interface P1.7 connecting valve; Interface P2.1 connects No. 3 interfaces of optics dust sensor module, and P2.2 connects the DATA interface of DH11 Temperature Humidity Sensor module;

The chip that described ZigBee transparent transmission adopts is that CC2530F256, ZigBee transparent transmission interface 1 connects VCC interface, and interface 2 connects the interface 2 of main control module, and interface 3 connects the interface 3 of main control module, and interface 4 connects GND interface;

Described optics dust sensor module adopts Sharp optics dust sensor GP2Y1010AU0F, this module provides six interfaces, and wherein No. 1 interface and No. 2 interfaces are the energization pins of infrared emission tube, and No. 1 connects VCC interface, No. 2 connect GND interface, No. 3 interfaces are the control pin of infrared-emitting diode, and No. 3 interfaces connect No. 6 interfaces of main control module, and No. 5 interfaces are signal output interface, connect No. 4 interfaces of main control chip, No. 6 interfaces provide voltage for module, meet VCC, and No. 4 interfaces meet GND;

Described DHT11 Temperature Humidity Sensor module only has four interfaces, and wherein have an interface for empty, then remaining three usable interfaces, wherein No. 1 interface connects VCC, and No. 2 DATA interfaces connect the P2.2 of main control module, and No. 3 interfaces connect GND;

Described optical sensor module comprises photosensitive resistance sensor, photosensitive resistance sensor is connected after a resistance and is connected to both ends of power, the change of light intensity causes the resistance change of photosensitive resistance sensor, and voltage output end Vin connects No. 4 P1.5 interfaces of main control module.