CN203120173U

CN203120173U - Intelligent water quality dissolved oxygen sensing terminal device for internet of things

Info

Publication number: CN203120173U
Application number: CN 201320117060
Authority: CN
Inventors: 顾相平; 杨艳; 胡荣林; 金鹰
Original assignee: Huaiyin Institute of Technology
Current assignee: Huaiyin Institute of Technology
Priority date: 2013-03-15
Filing date: 2013-03-15
Publication date: 2013-08-07
Anticipated expiration: 2023-03-15

Abstract

The utility model relates to an intelligent water quality dissolved oxygen sensing terminal device for the internet of things. The intelligent water quality dissolved oxygen sensing terminal device is mainly composed of a data acquisition module 1, a processing module 2, a wireless communication module 3 and a power module 4. The network is organized by itself through a ZigBee-Pro, data are received and transmitted, and near distance water quality dissolved oxygen wireless data acquisition is achieved. The intelligent water quality dissolved oxygen sensing terminal device for the internet of things overcomes the shortcomings that a wired transmitter is complex in network wiring, inflexible in installation and arrangement and high in cost, and has the advantages of being low in cost, resistant to interference, simple to maintain, high in reliability and capable of organizing the network by itself in a wireless mode and having data real time performance.

Description

A kind of Internet of Things smart water quality dissolved oxygen perception terminal device

One, technical field

A kind of Internet of Things smart water quality of the utility model dissolved oxygen perception terminal device relates to technology such as a kind of short-range data collection, wireless receiving and dispatching, relates in particular to ZigBee wireless self-networking, Low-power Technology.A kind of Internet of Things smart water quality of the utility model dissolved oxygen perception terminal device, ZigBee-Pro protocol stack by the wireless communication module lift-launch, realize the A/D conversion of the analog signal that dissolved oxygen sensor is gathered, dissolved oxygen sensor data read and data wireless transmission-receiving function.

Two, background technology

At present, in fields such as intelligence environment protection, Smart Home, intelligent medical, intelligent transportation, often need intelligent terminal to gather the monitored area data message and converge image data and carry out information fusion, finally be uploaded to the ipc monitor center by gateway, satisfy the demand of real-time remote monitoring, so that the lifting of automation, informationization and the intelligent level of management, monitoring.Owing to water area monitoring point distribution in the practical application disperses, scope is wide, belong to the unattended operation environment, the distance detection center is distant, carry out data transmit-receive by wired mode, obviously can be connected up, be installed and be disposed restrictions dumb, multiple factors such as transmission rate is low, cost, be difficult in long distance control system, use.Therefore, a kind of Internet of Things smart water quality of the utility model dissolved oxygen perception terminal device, adopt short-distance wireless communication ZigBee technology, can realize that closely data acquisition and self-organizing network carry out the remote-wireless transmission by gateway and Surveillance center, satisfy the requirement of the remote transfer of data of smart water quality.

Three, technology contents

(1) goal of the invention

The purpose of this utility model is to overcome prior art to install, dispose deficiencies difficult, technology such as cost is high, poor expandability, develop a kind of Internet of Things smart water quality dissolved oxygen perception terminal device based on the ZigBee technology, has closely data acquisition, self-organizing network, the function of remote data wireless transmitting-receiving.

(2) technical scheme

A kind of Internet of Things smart water quality of the utility model dissolved oxygen perception terminal device is mainly by data acquisition module 1, processor module 2, and wireless communication module 3 and power module 4 are formed.Use the ZigBee-Pro protocol ad hoc network of Z-Stack protocol stack, adopt the mesh network topological structure, the Random assignment address scheme is supported many-one, one-to-many, source route algorithm, adopts in application layer and cuts apart transfer function realization long data transfer function.Data acquisition module 1 adopts RY952 model dissolved oxygen sensor image data, by software program the analog signal of transducer collection is carried out the A/D conversion; Processor module 2 adopts enhancement mode 8051 microcontrollers of CC2530, has the on-line system programmable internal memory of 32KB, 64KB, 128KB or 256KB and the RAM of 8KB, and this RAM possesses the data protection ability under various supply power modes; Have plurality of operating modes simultaneously, and between the operational mode change-over time short, the further low-power consumption characteristic of assurance device.Wireless communication module 3 adopts the direct sequence spread spectrum communication radio frequency transceiver of 2.4GHz frequency range CC2530, has high sensitivity and interference free performance.Power module is supported external power supply and the power supply of dry cell dual mode, adopts the AAT3221 chip to realize that the 5V supply voltage is to the conversion of 3V voltage, for data acquisition module 1, processor module 2, wireless communication module 3 provide normal operating voltage in the module.Processor module 2 links to each other with data acquisition module 1 by the contact pin mode, and supports that JTAG, UART download debugging, and easy to use, flexible, inner integrated ZigBee-Pro agreement can realize wireless self-organization network, the low power consumption data transmitting-receiving.

(3) technique effect

A kind of Internet of Things smart water quality dissolved oxygen perception terminal device is a kind of wireless sensor network that merged, Internet of Things, the equipment of field state-of-the-art technologies such as radio communication, the novel communication that all adopts of this reality reason, have and install simply, dispose flexibly, cost is low, adaptability is strong, easy to maintenance, the extensibility height, automation, advantages such as intelligent advantage is remarkable, be highly suitable for intelligence environment protection, intelligent security guard, intelligent transportation, fields such as intelligence logistics, this is with big quantum jump wire transmission, the limitation of modes such as manual operation maintenance is highly intelligentized equipment.

The use of a kind of Internet of Things smart water quality of the utility model dissolved oxygen perception terminal device, the application present situation in monitoring field will greatly be improved, improve the level of aggregation of monitoring, management, promote domestic supervisory control system to portability and intelligent direction development, have very wide application prospect.

Four, description of drawings:

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is the utility model theory diagram

Fig. 2 is the utility model processor module and wireless communication module schematic diagram

Fig. 3 is the utility model radio communication mold block socket schematic diagram

Fig. 4 is the utility model power module schematic diagram

Five, embodiment

Below in conjunction with accompanying drawing an embodiment of the present utility model is described further:

With reference to Fig. 1, Fig. 1 represents the utility model principle of device block diagram.The utility model is gathered the value of oxygen in water by the RY952 dissolved oxygen sensor; By data calibration and the A/D conversion of processor module to gathering, realized the transmitting-receiving of data by wireless communication module ZigBee technology.The RY952 dissolved oxygen sensor is realized signal condition by the LM358AM integrated transporting discharging, and final output signal links to each other with the P0.0 pin of processor module.

With reference to Fig. 2, Fig. 2 represents utility model de-vice processor module and wireless communication module schematic diagram.The main CC2530 acp chip that adopts meets the ZigBee standard, can satisfy based on the 2.4GHzISM wave band of ZigBee and use requirement low-cost, low-power consumption.It is in conjunction with a high performance 2.4GHz direct sequence spread spectrum communication radio frequency transceiver and small and exquisite 8051 controllers efficiently of technical grade.

With reference to Fig. 3, Fig. 3 represents utility model device wireless communication modular jack schematic diagram.1 pin on the socket left side links to each other with the P0.7 pin of CC2530 chip, 2 pin link to each other with P0.6,3 pin link to each other with P05, and 4 pin link to each other with P0.4, and 5 pin link to each other with P0.3 and as signal sending end, 6 pin link to each other with P0.2, and as signal output part, 7 pin link to each other with P0.1, and 8 pin link to each other with P0.0,9 pin P1.0 link to each other, and 10 pin link to each other with P1.1; The 1 pin ground connection on socket the right, 2 pin connect+the 3.0V supply voltage, and 3 pin link to each other with P2.2, and 4 pin link to each other with P2.1,5 pin link to each other with P1.4, and 6 pin link to each other with P1.5, and 7 pin reset by button and link to each other with REST, 8 pin link to each other with P1.6, and 9 pin link to each other with P2.02, and 10 pin link to each other with P1.7.

With reference to Fig. 4, Fig. 4 represents utility model device power module schematic diagram.Power module adopts two kinds of supply power modes, and a kind of is the external power supply mode, a kind of dry cell power supply mode.1 pin of battery case links to each other with 6 pin with 1 pin of self-lock switch button K1, battery case 2 pin ground connection; 2 pin of self-lock switch connect+3.0V voltage, and the pull-up resistor that 5 pin meet 500 Ω connects light-emitting diode ground connection again; 3 pin, 4 pin all are connected 5 pin of AAT3221 voltage stabilizing chip and by 1uF filter capacitor ground connection, 4 pin are in vacant state, 2 pin ground connection, and 1 pin is+input of 5V voltage that 3 pin are that Enable Pin also is connected on+5V voltage, and are just effectively flat; 2,3 pin ground connection of supply socket, 1 pin connects the input pin 1 of AAT3221 chip.

Claims

1. Internet of Things smart water quality dissolved oxygen perception terminal device, it is characterized in that: system mainly is made up of data acquisition module (1), processor module (2), wireless communication module (3) and power module (4), data acquisition module (1) mainly adopts RY952 dissolved oxygen sensor image data, realizes signal condition through the LM358 integrated transporting discharging; Processor module (2) receives the data of data acquisition module (1) and carries out the A/D conversion; Wireless communication module (3) mainly adopts CC2530 to carry the ZigBee-Pro agreement, the data after receiving processor module (2) conversion, and carry out wireless data transmission and transmission.

2. a kind of Internet of Things smart water quality dissolved oxygen perception terminal device according to claim 1 is characterized in that: processor module (2) adopts enhancement mode 8051 microcontrollers of CC2530, has the RAM of on-line system programmable internal memory and 8KB; System clock is provided by the 32MHz crystal oscillator, and the system hibernates clock is provided by the passive crystal oscillator of 32KHz; Reset key is connected with RESET, can realize hardware reset, initialization system; Data acquisition module (1) adopts the mode of contact pin to be connected with processor module (2); Wireless communication module (3) adopts the leading RF radio-frequency (RF) transceiver of CC2530, meets 2.4GHz IEEE802.15.4 standard, has high receiving sensitivity and resists in disturbing performance, and programmable power output is up to 4.5dBm.

3. a kind of Internet of Things smart water quality dissolved oxygen perception terminal device according to claim 1 is characterized in that: power module (4) adopts two kinds of supply power modes, and a kind of is to adopt dry cell directly to power, and makes things convenient for terminal installation to work in the unattended operation environment; The another kind of external power supply supply power mode that adopts makes things convenient for experimental debugging; Power module (4) mainly adopts the AAT3221 chip, required voltage when converting external+5V supply voltage to data acquisition module (1), processor module (2), wireless communication module (3) operate as normal.