CN105160858A - Intelligent wireless data transmission gateway special for internet of things - Google Patents
Intelligent wireless data transmission gateway special for internet of things Download PDFInfo
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- CN105160858A CN105160858A CN201510701956.9A CN201510701956A CN105160858A CN 105160858 A CN105160858 A CN 105160858A CN 201510701956 A CN201510701956 A CN 201510701956A CN 105160858 A CN105160858 A CN 105160858A
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Abstract
The invention provides an intelligent wireless data transmission gateway special for the internet of things. The intelligent wireless data transmission gateway special for the internet of things comprises a microcontroller, a power module, a processor, a power supply module, a non-volatile flash memory, a storage module, a USB interface, an Ethernet interface and a wireless serial port module; the microcontroller is connected with the power module and a wireless sensor set; the wireless sensor set comprises an environment temperature and humidity sensor, a soil temperature and humidity sensor and an illumination intensity sensor; the microcontroller is connected with the processor through a 433M wireless transmitting and receiving circuit and the wireless serial port module; the processor is connected with the power supply module, the non-volatile flash memory, the storage module, the USB interface and the Ethernet interface. According to the intelligent wireless data transmission gateway special for the internet of things, the problem of long-distance wireless data transmitting and networking is solved, effective comprehensive supervision on an agricultural site of which the spacial distribution is scattered is achieved, and the low power dissipation design of a wireless sensing module well solves the problems that in the agricultural site, power cannot be conveniently supplied, and the power supply time is short by adopting a battery.
Description
Technical field
The present invention relates to a kind of Internet of Things special intelligent Wireless Data Transmission gateway.
Background technology
It is various that agricultural has object, and region is wide, remote dispersion, and away from urban community, communication condition such as to fall behind at the feature, therefore as a rule, and the acquisition of agricultural data information and very difficult to crop growth supervision.How effectively to obtain agricultural data information and according to the information obtained, the core that corresponding supervision is wisdom agricultural to be carried out to agricultural.
Current acquisition agricultural data information spinner will rely on sensing technology and Internet of Things wireless communication technology.Sensor network is made up of many microsensor nodes, and microsensor node access conventional internet network adopts the mode of gateway usually.
Moment sensor and gateway mainly adopt wireless connections, can often exist like this wireless senser wireless transmission distance not far, do not connect with gateway, the continuous transmitting data power consumption of wireless senser is large, supplying cell does not often have the problems such as electricity.
Summary of the invention
The object of this invention is to provide a kind of Internet of Things special intelligent Wireless Data Transmission gateway solve in prior art the wireless senser wireless transmission distance existed not far, do not connect with gateway, the continuous transmitting data power consumption of wireless senser is large, supplying cell does not often have the problems such as electricity.
Technical solution of the present invention is:
A kind of Internet of Things special intelligent Wireless Data Transmission gateway, comprise microcontroller, power module, processor, supply module, nonvolatile flash memory, memory module, USB interface, Ethernet interface, wireless serial module, microcontroller is connected with power module, microcontroller is connected with wireless senser group, microcontroller is by 433M wireless transmission receiving circuit, wireless serial module road is connected with processor, processor connects supply module respectively, nonvolatile flash memory, memory module, USB interface, Ethernet interface, processor adopts AT91SAM9260 processor, USB interface is connected with 3G network interface card, processor is connected with remote network server by 3G network interface card.
Further, power module comprises the booster circuit that two joint lithium batteries and the 3.3V for lithium battery voltage stabilizing being exported boost to 5V, booster circuit adopts MAX619 boost chip, the IN end of MAX619 boost chip connects the 3.3V output end of pressure-stabilizing of lithium battery, by electric capacity C12 ground connection between the IN end of MAX619 boost chip and the 3.3V output end of pressure-stabilizing of lithium battery, the CL+ end of MAX619 boost chip connects the CL-end of MAX619 boost chip by electric capacity C11, MAX619 boost chip C2+ end connected the C2-end of MAX619 boost chip by electric capacity C14, the SHDN end of MAX619 boost chip connects the P20 pin of microcontroller by resistance R4, the OUT end of MAX619 boost chip is by electric capacity C13 ground connection, the OUT end of MAX619 boost chip is 5V voltage output end.
Further, microcontroller adopts MSP430 microcontroller, and supply module adopts power supply adaptor alternating current 220V being converted to DC5V.
Further, wireless serial module road is provided with buffer circuit, and buffer circuit comprises power isolation module and signal isolation module, and signal isolation module adopts two-channel digital isolator ADUM1201.
Further, wireless senser group comprises environment humidity sensor, soil temperature-moisture sensor, intensity of illumination sensor.
Further, the information of environment humidity sensor collection converts SPI protocol data upload to microcontroller, and soil temperature-moisture sensor and intensity of illumination sensor Collect conversion become d. c. voltage signal to be connected with the AD acquisition port of microcontroller.
The invention has the beneficial effects as follows: this kind of Internet of Things special intelligent Wireless Data Transmission gateway, spatially distribute extensively for agriculture acquisition target, object is various, between wireless senser and gateway, transmission range is short, well solves the problem of long range wireless transmission data and networking.Effective comprehensive supervision is carried out at the agricultural scene achieved space distribution is comparatively fallen apart.The low power dissipation design of wireless sensing module, well solves and is not easy to power supply at agriculture scene, adopts the problem that battery-powered time is short.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the circuit connection diagram of power module in embodiment.
Fig. 3 is the circuit connection diagram of booster circuit in embodiment.
Fig. 4 is the circuit connection diagram of microcontroller in embodiment.
Fig. 5 is the structured flowchart that in embodiment, processor is connected with remote network server by 3G network interface card.
Fig. 6 is the connection block diagram of processor in embodiment.
Fig. 7 is the circuit connection diagram of buffer circuit in embodiment.
Fig. 8 is the explanation block diagram of processor in embodiment.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with accompanying drawing.
Embodiment
This kind of Internet of Things special intelligent Wireless Data Transmission gateway, comprise microcontroller, power module, processor, supply module, nonvolatile flash memory, memory module, USB interface, Ethernet interface, wireless serial module, microcontroller is connected with power module, microcontroller is connected with wireless senser group, wireless senser group comprises environment humidity sensor, soil temperature-moisture sensor, intensity of illumination sensor, microcontroller is by 433M wireless transmission receiving circuit, wireless serial module road is connected with processor, processor connects supply module respectively, nonvolatile flash memory, memory module, USB interface, Ethernet interface, processor adopts AT91SAM9260 processor, USB interface is connected with 3G network interface card, processor is connected with remote network server by 3G network interface card.
Embodiment, for the short defect of current ZigBee wireless communication technology transmission range, provides the agriculture things-internet gateway of a kind of stable connection, low-power consumption.Embodiment adopts 433M wireless technology, maximum 2000 meters of transmission range.Wireless sensor device adopts MSP430 low-power consumption microcontroller, and power module adopts two joints can the lithium battery power supply of Hot Spare, adopts a booster circuit that lithium battery output voltage is upgraded to the voltage of system works.Thus resolution system power supply capacity is not enough, the large problem of power consumption.Exchanges data between the gateway of embodiment and wireless sensor device adopts wireless transmission method, is expanded to the mode of 433 wireless serial in gateway by a serial ports, can good and wireless sensor device networking.A kind of well solution is provided for solving data cube computation instability.
As Fig. 1, wireless senser gathers original agriculture field data by environment humidity sensor, soil temperature-moisture sensor, intensity of illumination sensor.The information of ambient temperature and humidity collection converts SPI protocol data upload to microcontroller, and soil temperature and humidity becomes d. c. voltage signal to be connected with microcontroller AD acquisition port with intensity of illumination by corresponding sensor Collect conversion.Microcontroller processes the data that each sensor is uploaded, and then utilizes 433M wireless transmission receiving circuit data to be transferred out by asynchronous serial port.
Power module adopts two batteries Hot Spare technology thus extends the service time of system, diode mainly through two common cathodes realizes, the positive pole of two joint lithium batteries is connected with the positive pole of two diodes of common cathode respectively, and the negative pole of lithium battery is connected with GND respectively, as shown in Figure 2.
If Fig. 3 is a booster circuit, the 3.3V that lithium battery voltage stabilizing exports being boosted to 5V for the equipment needing 5V to power provides voltage to input, and this main circuit will adopt MAX619 boost chip.Power module comprises the booster circuit that two joint lithium batteries and the 3.3V for lithium battery voltage stabilizing being exported boost to 5V, booster circuit adopts MAX619 boost chip, the IN end of MAX619 boost chip connects the 3.3V output end of pressure-stabilizing of lithium battery, by electric capacity C12 ground connection between the IN end of MAX619 boost chip and the 3.3V output end of pressure-stabilizing of lithium battery, the CL+ end of MAX619 boost chip connects the CL-end of MAX619 boost chip by electric capacity C11, MAX619 boost chip C2+ end connected the C2-end of MAX619 boost chip by electric capacity C14, the SHDN end of MAX619 boost chip connects the P20 pin of microcontroller by resistance R4, the OUT end of MAX619 boost chip is by electric capacity C13 ground connection, the OUT end of MAX619 boost chip is 5V voltage output end.
Fig. 4 is the microcontroller recent systems figure of this wireless senser, primarily of coupling capacitance, outside high speed crystal oscillator and second clock crystal oscillator composition, this module mainly completes the process of data and coordinates the work of each parts.
Radio network gateway mainly realizes receiving the data that multiple wireless senser is uploaded, and by after the Data Analysis Services uploaded, is sent realize data interaction with remote network server by 3G mobile network.User by mobile phone or terminal accessing Internet access services device, as shown in Figure 5.
This radio network gateway adopts AT91SAM9260 processor, and it is system power supply that supply module converts alternating current 220V to DC5V by power supply adaptor.This radio network gateway realizes data interaction by Serial interface design 433M wireless transmission circuit and wireless senser, connects 3G network interface card, be also provided with a 10/100M Ethernet interface by USB interface.System chart as shown in Figure 6.
Gateway Serial interface design have employed isolated design, ensure that the electrical isolation of external circuit and internal data treatment circuit, effectively to prevent under inclement weather other infringements of interference to internal processing circuitry such as thunder and lightning, the design of this buffer circuit as shown in Figure 7, forms mainly through a power isolation module and a signal isolation module ADUM1201Z.Gateway is primarily of ARM9 processor A T91SAM9260, and memory module SDRAM, NORFLASH, NANDFLASH, BOOTROM, this few partial circuit composition of USB module, wireless serial SERIAL module, Ethernet ETHERNET module, as Fig. 8.
Claims (6)
1. an Internet of Things special intelligent Wireless Data Transmission gateway, it is characterized in that: comprise microcontroller, power module, processor, supply module, nonvolatile flash memory, memory module, USB interface, Ethernet interface, wireless serial module, microcontroller is connected with power module, microcontroller is connected with wireless senser group, microcontroller is by 433M wireless transmission receiving circuit, wireless serial module road is connected with processor, processor connects supply module respectively, nonvolatile flash memory, memory module, USB interface, Ethernet interface, processor adopts AT91SAM9260 processor, USB interface is connected with 3G network interface card, processor is connected with remote network server by 3G network interface card.
2. Internet of Things special intelligent Wireless Data Transmission gateway as claimed in claim 1, it is characterized in that: power module comprises the booster circuit that two joint lithium batteries and the 3.3V for lithium battery voltage stabilizing being exported boost to 5V, booster circuit adopts MAX619 boost chip, the IN end of MAX619 boost chip connects the 3.3V output end of pressure-stabilizing of lithium battery, by electric capacity C12 ground connection between the IN end of MAX619 boost chip and the 3.3V output end of pressure-stabilizing of lithium battery, the CL+ end of MAX619 boost chip connects the CL-end of MAX619 boost chip by electric capacity C11, MAX619 boost chip C2+ end connected the C2-end of MAX619 boost chip by electric capacity C14, the SHDN end of MAX619 boost chip connects the P20 pin of microcontroller by resistance R4, the OUT end of MAX619 boost chip is by electric capacity C13 ground connection, the OUT end of MAX619 boost chip is 5V voltage output end.
3. Internet of Things special intelligent Wireless Data Transmission gateway as claimed in claim 1 or 2, it is characterized in that: microcontroller adopts MSP430 microcontroller, supply module adopts power supply adaptor alternating current 220V being converted to DC5V.
4. Internet of Things special intelligent Wireless Data Transmission gateway as claimed in claim 1, it is characterized in that: wireless serial module road is provided with buffer circuit, buffer circuit comprises power isolation module and signal isolation module, and signal isolation module adopts two-channel digital isolator ADUM1201.
5. Internet of Things special intelligent Wireless Data Transmission gateway as claimed in claim 1 or 2, is characterized in that: wireless senser group comprises environment humidity sensor, soil temperature-moisture sensor, intensity of illumination sensor.
6. Internet of Things special intelligent Wireless Data Transmission gateway as claimed in claim 5, it is characterized in that: the information of environment humidity sensor collection converts SPI protocol data upload to microcontroller, soil temperature-moisture sensor and intensity of illumination sensor Collect conversion become d. c. voltage signal to be connected with the AD acquisition port of microcontroller.
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| CN105577817A (en) * | 2016-01-20 | 2016-05-11 | 刘圣德 | Agricultural Internet of Things system based on 433M communication |
| CN106297255A (en) * | 2016-11-01 | 2017-01-04 | 合肥科迈捷智能传感技术有限公司 | A kind of wireless data acquisition device based on Zigbee |
| CN107131914A (en) * | 2017-06-21 | 2017-09-05 | 江南大学 | A kind of long-life soil temperature and humidity data collecting system of low-power consumption |
| WO2019223424A1 (en) * | 2018-05-21 | 2019-11-28 | 中兴通讯股份有限公司 | Gateway and controlling method therefor, and computer readable storage medium |
| CN113965828A (en) * | 2021-10-20 | 2022-01-21 | 山西三合企业管理有限公司 | Intelligent Internet of things gateway based on 4G communication |
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