Utility model content
In view of this, it is necessary to for current urban Heat Environment progressively deterioration problem, there is provided a kind of more meteorological elements observations
Unmanned plane.The unmanned plane includes realizing the Design of meteorological data collection of data acquisition and parsing, aircraft, earth station and data storage
Display systems are deposited, described Design of meteorological data collection is connected with aircraft communication, and aircraft communicates to connect with earth station, data
Storage display systems are placed in earth station, storage and displaying Various types of data and result.
Preferably, described Design of meteorological data collection includes carried micro Meteorological Automatic Station, air particle concentration
Equipment and data acquisition board.
Preferably, described data acquisition board include data processing chip, data back interface, digital independent interface,
Power module and voltage detection module, described data processing chip read Meteorological Automatic Station by described digital independent interface
With the data of air particle concentration sensor, after data parsing, by described data back interface return data, while electricity
Pressure detection module realizes voltage detecting, real-time display aircraft voltage.
Preferably, described data processing chip includes STM32F103RCT6 single-chip microcomputers.
Preferably, described digital independent interface is communicated using RS-485 and RS-232 interface.
Preferably, described power module includes TPS54560, TPS54260, AMS1117-3.3 chip, there is provided no
Same operating voltage.
Preferably, described aircraft includes UAS.
Preferably, described UAS includes aircraft body, frame, flight controller, battery.
Preferably, described earth station includes remote control, pc client or cell-phone customer terminal.
Preferably, described data storage display systems include Android version and PC versions.
The beneficial effects of the utility model:
Take the lead in developing Small and micro-satellite meteorological plat at home, using Small and micro-satellite flight control technique, surpass
Cement bond logging wind technology, temperature and humidity sensing technology are combined that exploitation can be applied to city canopy meteorological observation and earth's surface thermal environment is fine
Change the new meteorological plat of research.
More meteorological element observation unmanned planes may extend to the whole nation, and other carry out city canopy meteorological observation, medium and small for improving
Yardstick, particularly small scale weather system monitoring, for big city become more meticulous weather forecast service provide preferably support.Opening
Open up atmosphere pollution and the research of low latitude meteorological element vertical stratification and its Spatio-temporal Evolution, urban heat land effect, urban waterlogging point
Analysis etc. provides the firsthand information, has a wide range of applications promotion prospect.
Embodiment
More meteorological element observation UASs of the present utility model are described further below in conjunction with the accompanying drawings.
The system of more meteorological element observation UASs includes Design of meteorological data collection, aircraft, earth station's sum
According to storage display systems.
1st, Design of meteorological data collection
Including carried micro Meteorological Automatic Station, air particle concentration equipment and data acquisition board.Pass through data acquisition board
With carried micro Meteorological Automatic Station, the sensor of air particle concentration equipment connection data acquisition and parsing task,
And it is sent to aircraft.
2nd, aircraft
Mainly include UAS, possess including aircraft body, including frame, flight controller, battery etc..
3rd, earth station
Can be remote control, pc client or cell-phone customer terminal for software and hardware used in ground controller.
4th, data storage display systems
Data storage display systems are used to storing and demonstrating displaying flight and meteorological data.Predominantly observe the aobvious of data
Show, record, the exploitation of server relative program, be divided into Android version and PC versions.
As shown in figure 1, give a kind of more meteorological elements observation UAS frame diagram, meteorological sensor is by collection
All kinds of meteorological datas are sent to data acquisition module, and meteorological data is sent to ground, user by data acquisition module via winged control
Data are checked by earth station APP or client.Server and earth station APP will store to data.
For data collecting system therein, can Integrated Development on one piece of PCB.Data acquisition board includes data processing core
Piece, data back interface, digital independent interface, power module and voltage detection module.As shown in Fig. 2 Fig. 2 gives a kind of number
According to the connected mode of collection plate.Data acquisition board is Meteorological Automatic Station and air particle concentration sensor by battery powered
Power supply, makes its normal operation.Data acquisition board reads the data of Meteorological Automatic Station and air particle concentration sensor simultaneously, and
Data back is parsed, while realizes voltage detecting, real-time display aircraft voltage.
It is a kind of specific embodiment below.
Data processing chip:Select single-chip microcomputer.Single-chip microcomputer(MCU)The reading and parsing of completion sensing data are needed, it is whole
Need to carry out substantial amounts of computing during individual, it is desirable to which arithmetic speed is fast, operational performance is strong.As a preferred embodiment,
The STM32F103RCT6 single-chip microcomputers of ST Microelectronics's production may be selected, the single-chip microcomputer is should for low-power consumption and low cost
With and 32 embedded microcontrollers of high integration for designing, employ presently most popular ARMCortex-M3 kernels, inside 4
Individual 16 bit timing device, it can at most produce the PWM of 16 tunnel independences, 2 12 precision A/D converters, various communication interfaces(UART,
SPI, I2C, SDIO).The maximum operating frequency of the single-chip microcomputer can be rapidly completed all computings in 72MHz.
Data back interface:The USART asynchronous serial ports carried using processor are communicated.
Digital independent interface:Meteorological Automatic Station and air particle concentration sensor are connect using RS-485 and RS-232 respectively
Mouth is communicated.
RS-232 communication interface circuits:
MAX3232 chips use proprietary low voltage difference transmitter output stage, are supplied using dual charge pump in 3.0V to 5.5V power supplys
Real RS-232 performances can be realized when electric, device only needs four 0.1uF outside small size charge pump capacitor.MAX3232
Chip is ensured in 120kbps data rates, while keeps RS-232 output levels.
Pin, encapsulation and the function of MAX3232 chips are compatible with industrial standard MAX242 chips and MAX232 chips respectively.
Even if being operated under high data rate, MAX3232 chips still can keep the positive and negative 5.0V of rs-232 standard requirement is minimum to send
Device output voltage.
Voltage is simply entered within 3.0V to 5.5V scopes, you can offer+5.5V(Multiplication of voltage charge pump)With -5.5V(Instead
Phase charge pump)Output voltage.Charge pump once output voltage is less than 5.5V, will open charge pump in non-continuous mode.It is defeated
Go out voltage more than 5.5V, you can close charge pump.Each charge pump needs a winged container and a storage capacitor, produce V+ and
V- voltage.
MAX3232 chips can ensure 120kbps data rate under worst condition of work.Under normal circumstances, can
Work in 235kbps data rates.
RS-485 communication interface circuits:
The half-duplex network of RS-485 interfaces composition, usually two-wire system.Transmitted more using Shielded Twisted Pair.This wiring
Mode is that bus type topological structure can at most mount 32 nodes on same bus.Typically adopted in RS-485 communication networks
Master-slave communication mode, i.e. the multiple slaves of host tape.In many cases, it is letter when connecting RS-485 communication links
Singly " A " of each interface, " B " end are connected with a pair of twisted-pair feeders.
SP3485 chips are a series of low-power consumption Half-duplex transceivers.SP3485 chips meet the electricity of RS-485 serial protocols
Gas specification, message transmission rate may be up to 10Mbps(Bringing onto load).SP3485 chips use Differential Input, Differential Output mode,
Output, input share a pair of circuits.
Data acquisition board is provided simultaneously with RS-485 interfaces and RS-232 interface.MAX3232 cores are selected for this data acquisition board
Piece and SP3485 chips, to design RS-232 and RS-485 interfaces.
Power module:Power supply chip is used as using TPS54560, TPS54260, AMS1117-3.3.TPS54560 power supply cores
Piece provides 12V DC power supply for Meteorological Automatic Station and air particle concentration sensor, and TPS54260 power supply chips are to LM358 etc.
IC provides 5V power supplys, and AMS1117-3.3 provides 3.3V power supplys for STM32F103RCT6 single-chip microcomputers.
12V power modules:
Data acquisition board uses voltage to be powered for 25.2V lithium batteries, so data acquisition board needs to have directly
Flow power voltage step down ability.25.2V voltage is set to drop to the 12V power supplys for being available for Meteorological Automatic Station and pm2.5 sensors to use.
The design uses the TPS54560 of Texas Instrument as decompression chip.TPS54560 is a of Texas Instrument's product
Step-down DC-DC converter, apply in automobile, global positioning satellite, the field such as industrial automation and motor control.Input voltage
4.5-60V, output voltage 0.8-58.8V, output current maximum 5A.Meteorological Automatic Station and pm2.5 sensors can be met completely
Power demands.
5V and 3.3V power modules:
Different chips uses different power voltage supplies in data acquisition board.Mainly there are two kinds, Yi Zhongshi
STM32F103RCT6 single-chip microcomputers use 3.3V dc sources, and another kind is that the chips such as LM358 use 5V direct currents
Source.25.2V dc sources are first dropped to 5V by the TPS54260 for this from Texas Instrument, are the chip power supplies such as LM358, are reused
5V dc sources are dropped to 3.3V by AMS1117-3.3 chips, are powered for STM32F103RCT6 single-chip microcomputers.
Why select there are two reasons as 5V power supply chips with TPS54260.First, because TPS54260 chips are permitted
Perhaps input voltage is higher, and power supply capacity is stronger.Input voltage is up to 60V, output current maximum 2.5A.It is entirely capable of
Enough meet the power demands of data acquisition board.Another reason is designed because TPS54260 and TPS54560 is same company
The DC-DC power source chip of manufacture, belong to a series together.Two chip is different with encapsulation except maximum load current, exists a lot
Similarity, periphery circuit design are about the same.Circuit design is so caused to safeguard more convenient, material procurement when production
It is simpler.
AMS1117 series voltage-stablizers have adjustable version and a variety of fixed voltage versions, are designed to provide for 1A output currents and work
Making pressure difference can as little as 1V.In maximum output current, the pressure difference of AMS1117 devices ensures that maximum is no more than 1.3V, and with load
The reduction of electric current and gradually reduce.The fixed voltage version AMS1117-3.3 that the design uses, makes 5V power supplys drop to 3.3V.
Voltage detection module:Cell voltage is sampled using LM358 amplifier chips, enables a processor to read battery
Voltage.
Voltage detecting circuit:
The A/D converter of the STM32F103RCT6 us levels of 3 12(16 passages).Measure, survey available for voltage A/D
Measure scope:0-3.6V.Because STM32 A/D measurement ranges only have 0-3.6V, and the power supply that the design uses is 25.2V, much
More than the A/D measurement ranges of STM32 single-chip microcomputers, so supply voltage passes through the discharge circuit that LM358 amplifier chips are formed, make electricity
Pressure carries out scale smaller, so that voltage is dropped in the measurement range of single-chip microcomputer.
For the design using LM358 as amplifier, LM358 is dual operational amplifier.Inside includes two independent, Gao Zeng
Benefit, the dual operational amplifier of internal frequency compensation, it is suitable for the very wide single supply of supply voltage scope and uses, be also applied for double electricity
Source mode of operation, under the condition of work of recommendation, source current is unrelated with supply voltage.Its use range includes Sense Amplification
The occasion using operational amplifier of device, DC current gain module and other all available single supply power supplies.
Earth station:
Meteorological data collection earth station can be App.App data acquisition and transmission aspect:(STM32 is mono- for data acquisition board
Piece machine data collecting system) carry out docking progress data interaction, data with flying the DJI Onboard SDK of control in the form of serial ports
After collection plate collects the data of Meteorological Automatic Station, by with the data transmission interface built in winged control by the data of automatic weather station
Wireless backhaul is into DJI remote control.Data after remote control preliminary treatment again by Google AOA technologies, most at last
Data byte array, which is transferred in earth station, to be carried out corresponding dissection process and is submitted to server showing, and a series of behaviour such as preserves
Make.
Data transfer interaction:Collection plate (STM32 capture programs) --->UART (serial ports) --->Fly control (A3
Onboard SDK)--- >Remote control (DJI SDK) --->USB (AOA agreements) --->Earth station
Data are parsed and preserved:
1. after data pass back to android equipment by remote control, the data institute by data according to each measurement kind
The different progress of byte length accounted for parse (data of every kind of measurement are all four byte single-precision floating-point datas) accordingly, most
Specific data are obtained eventually, are then presented on the screen of android equipment, and are automatically saved in real time under SDCard
One can be all printed in TXA/Meteorologic/MeteorologicData/AutoSave.csv files, during start
Secondary item-title.
The document for the .csv forms that 2. data format, which is Excel text editors, to be supported is easy to check.
3. data forwarding:The character string of Json specified formats is encapsulated data into according to data transmission specifications, passes through interconnection
Data are submitted to the server specified by net Http agreements according to data transmission specifications in the form of Post.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to the utility model patent scope.It should be pointed out that for the common of this area
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.