CN108107856A - A kind of field monitoring and security protection control method based on Internet of Things - Google Patents

Abstract

The invention discloses a kind of field monitoring based on Internet of Things and security protection control method, steps 1：Monitoring fire point position；Step 2：MCU control spray equipments implement fire extinguishing；In step 1, the method for monitoring fire point position has 2：The multiple fire sensors detection fire point position arranged by array；By infrared camera and based on image procossing monitoring fire point position；In step 2, controlling the method for fire extinguishing has 2：(1) nozzle of fire area (subregion) is controlled to implement water spray；(2) spray gun rotary alignment fire point is controlled, implements sprinkling fire.The field monitoring and security protection control method based on Internet of Things are feature-rich, and easily controllable, high safety and reliability has the function of fire prevention and control.

Description

A kind of field monitoring and security protection control method based on Internet of Things

Technical field

The present invention relates to a kind of field monitoring based on Internet of Things and security protection control methods.

Background technology

Monitoring site generally refers to household scene or storage scene, and the maximum hidden danger of this kind of occasion comes from fire；

In the prior art, although there is fire prevention and control system, if any the building automatic intelligence based on Smoke Detector and nozzle System, but exist and control single, the incomplete defect of function, the effect of intelligent spray is such as can not achieve, intelligent spray refers to Control sprinkling region and the function of controlling spray angle.Moreover, existing nozzle is linked into Internet of Things, there are blind in monitoring Point.

Therefore, it is necessary to design a kind of new field monitoring and security protection control method based on Internet of Things.

The content of the invention

The technical problems to be solved by the invention are to provide a kind of field monitoring based on Internet of Things and security protection control method, The field monitoring and security protection control method based on Internet of Things are feature-rich, and easily controllable, high safety and reliability is prevented with fire Control function.

The technical solution of invention is as follows：

A kind of field monitoring and security protection control method based on Internet of Things, comprise the following steps：

Step 1：Monitoring fire point position；

Step 2：MCU control spray equipments implement fire extinguishing；

Fire prevention and control are realized using the multi-functional onsite monitoring based on Internet of Things and safety-protection system；

Multi-functional onsite monitoring and safety-protection system based on Internet of Things include MCU, camera, communication module, fire detection Device and spray equipment；

Camera, communication module and fire detection device are connected with MCU；

Camera is used to obtain monitoring image or video；

Field data is transferred to remote monitoring end or received from long-range by communication module for communicating with remote monitoring end The control instruction of monitoring client；

Spray equipment is controlled by MCU；Spray equipment is used to spray water to put out a fire；

Fire detection device be fire sensor, Smoke Detector, flame sensor and thermal infrared probe at least one of, Or fire detection device uses infrared camera.

The multiple fire sensors detection fire point position arranged by array；

Field regions are divided into N number of subregion (301), at least provided with a fire sensor in each subregion；Spray dress It puts including N number of nozzle (303), is set in each subregion there are one nozzle, N is the natural number more than or equal to 4.

The nozzle for the subregion that catches fire is controlled to implement sprinkling fire.

By infrared camera and based on image procossing monitoring fire point position；(image procossing is existing mature technology)

Spray gun rotary alignment fire point is controlled, implements sprinkling fire；

Spray equipment is the ceiling above setting at the scene or the rotating spraying shower device on the stent of top；

At this point, (1) fire sensor is multiple, it is distributed using array；If some or sensor detect at this time A certain region is there are fire behavior, then the spray gun on rotating spraying shower device control rotating spraying shower device rotates to be registered to the region Implement sprinkling fire-distinguishing；

Alternatively, (2) fire sensor uses infrared camera, the position of fire point is obtained through image procossing, then rotary spray Spray gun on device control rotating spraying shower device rotates to be registered to fire point region implementation sprinkling fire-distinguishing.

The rotating spraying shower device includes support base, rotating platform (118) and rotating platform driving motor (121)； Spray gun (108) is arranged on rotating platform；

Rotating platform driving motor can drive rotating platform to rotate by the first transmission mechanism；Rotating platform is equipped with spray gun Driving motor (117), spray gun driving motor can pass through the angle of depression of the second transmission mechanism control main jet rifle；

First transmission mechanism is gear or belt wheel transmission mechanism；

Second transmission mechanism is electric pushrod or drawstring (116), when the second transmission mechanism is drawstring, under drawstring End is arranged on the front end of spray gun, and the upper end of drawstring is in the shaft mounted in spray gun driving motor；Spray gun is mounted in gunjet rack (123) it is hinged with gunjet rack, therefore, spray gun front end is downward under the effect of gravity, and therefore, the angle of depression is completely by drawing on Rope control.

The imaging sensor of camera is N1, and the camera lens of camera is the combined type camera lens with N1 sub- camera lenses, N1 To be greater than or equal to 3 integer.

Field monitoring and safety-protection system further include the Temperature Humidity Sensor being connected with MCU, rain sensor, air quality and pass Sensor, optical sensor and current transformer.

Field monitoring and safety-protection system further include executing agency, and executing agency includes electric clothes hanger, ventilating fan and use In the powered off and on relay of control electrical equipment；

Field monitoring and safety-protection system further include the stand-by power supply based on lithium battery and the perseverance for charging for lithium battery Current charge circuit.

Communication module includes wire communication module and wireless communication module；Wire communication module is WLAN module, channel radio Letter module is at least one of WiFi module, GPRS, 3G, 4G and 5G communication module；

Multi-functional onsite monitoring and safety-protection system based on Internet of Things are further included based on RFID card reader and electric door lock Entrance guard device (reads RFID card, unlock by i.e. control door lock after verification).

Multi-functional onsite monitors and safety-protection system further include electrical equipment current detecting based on the current transformer and Control relay circuit；Circuit structure is as follows：

Current transformer L2 is in parallel with resistance R17, and the output signal of current transformer is through bridge rectifier；Bridge rectifier DC side first end for signal end, second end ground connection；The signal end is grounded through resistance R16 and resistance R14；Resistance The tie point of R16 and resistance R14 connects the in-phase input end of operational amplifier U3 (being used as comparator), operational amplifier U3's Inverting input is grounded by resistance R19, and the output terminal of operational amplifier U3 connects triode Q4 (three poles of NPN type through resistance R18 Pipe) b poles, the e poles ground connection of triode Q4, the output terminal of operational amplifier U3 is grounded by resistance R21；

One end of the c poles contact relay coil of triode Q4, another termination VCC of relay coil；The contact of relay Switch is serially connected in the power supply circuit (or socket) of electrical equipment；

Meanwhile the signal end is also output to the ACD ports of MCU by voltage follower U4 and resistance R27, it is real The real-time detection of existing electric current.

During applied to household scene, electrical equipment includes at least one of water dispenser, electric cooker and electromagnetic oven.

Described multi-functional onsite monitoring and safety-protection system based on Internet of Things further include at least one to be connected with MCU Camera.

Sensor assembly further includes flame sensor, and spray equipment is further included in executing agency.

Multi-functional onsite based on the Internet of Things monitoring and safety-protection system further include the lighting system for being controlled by MCU；

Autocontrol method：

Step 1：Presence states are detected by sensor；

Step 2：Pass through default control strategy, (remote controler) control instruction at scene or long-range (mobile phone terminal) control System instruction controls each executing agency；

Step 3：Newest status data is fed back into mobile phone end by communication module；

There are two types of control modes：

(1) manual active monitoring site device, method, the equipment at mobile phone remote control scene；

(2) field device automatically controls, and control result is fed back to mobile phone terminal；

Specific control method：

(1) access control；Gate inhibition alarms；

It detects that someone swarms into, starts alarm；

(2) fire alarm and spray control；

Flame sensor detects fiery point, starts alarm, and starts sprinkling equipment；

(3) Temperature and Humidity Control, humidifier；Air-conditioning；

By Temperature Humidity Sensor, within a preset range whether detection humiture, controlled by humidifier and air conditioner dehumidification Humidity passes through airconditioning control temperature；

(4) security based on infrared detection；

It detects whether valuables move by infrared sensor, moves excessively, then start alarm；

(5) electrical equipment overload monitor is controlled based on current transformer and relay；

The operating current of electrical equipment is detected by current transformer, if controller, is cut off by relay Electrical equipment power supply；

(6) based on rain sensor, clothes hanger control；

Rainfall size is detected by rain sensor, rainfall is higher than threshold value, then clothes hanger is controlled to shrink, and otherwise controls the clothing that dries in the air Frame expansion hangs out；And control pass window.

(7) Lighting control；Signal light control；

It is shone by optical sensor detection light, illumination is higher than threshold value, and light falls lamp, when illumination is weak, opens electric light, and adjusts electricity Lamp brightness (pwm pulse control brightness).

(8) Detection of Air Quality and ventilation control；

By air quality sensor, air quality is detected, air pollution degree is higher than threshold value, then opens electric window, Or start Air conditioner air exchange.

(9) video monitoring.

Secondly, the backlight dimming control of display screen is further included, the light intensity of backlight can be adjusted manually.

Advantageous effect：

The field monitoring and security protection control method based on Internet of Things of the present invention, can realize intelligent spraying, specifically, can base In the nozzle that is set in multiple subregions implement subregion water spray or based on can rotate and can adjust the angle of depression spray gun be directed to it is a certain Angular range implements water spray, therefore, more targeted to the prevention and control of fire, also more effectively.This is maximum the characteristics of institute of the invention .

In addition, using STM32F407 chips as master controller (MCU), it is therefore intended that realize to site environment data It shows and provides input channel for automation control instruction；Using RFID radio-frequency techniques realize to the automatic identification of access card so as to Realize gate function；Various kinds of sensors is arranged at the scene, and one powerful environment sensing network of tissue is conducive to system to environment It makes and accurately judges and operate, to realize air adjustment, shine clothing and receive the functions such as clothing；Secure context at the scene, system can be with Fire-proof and theft-proof, and can accomplish live current monitoring, pacified so as to effectively prevent live member using high-power electric appliance Full problem；System can simultaneously use mobile phone remote monitoring field environment and control scene electricity with voice control scene electric appliance Device.

System mainly realizes following functions：

(1) gate function：Magnetic card, typing or deletion access card ID are read using RC522 modules, so as to authorize access card ID It can unlock.

(2) air adjustment：The live air quality of detection, humiture pass through indoor and outdoor so as to draw air quality index Air-flow exchanges to adjust live air quality.

(3) speech recognition：By speech recognition technology, phonetic order is accurately judged to, and then controls and instructs corresponding Electric appliance.

(4) fire-proof and theft-proof：Whether fire behavior is whether there is by flame sensor detection interior, passes through infrared light sensor ultrasound Wave sensor etc. is implemented to position detections such as live important item such as computers, just alarms once being moved by other people.

(5) notification unit：Data or alarm are reached into mobile phone control terminal and receive mobile phone control command.

(6) cryptopart：Access right is fixed by setting and preserving password.

(7) overcurrent protection：Field circuit maximum threshold is set, once detection circuit, which is more than this value, will cut off circuit.

(8) automatic airing receives clothing：By environment sensing weather conditions, driving motor, which is made rotating forward to shine clothing and invert, receives clothing Action.

The system possesses gate inhibition, air automatic adjustment, security protection, automatic taking clothes solarization clothing, voice control, circuit current limliting guarantor Shield and data in mobile phone show with control etc. functions.System uses STM32F407 chips as master controller, in environment sensing net On the basis of network, intelligent adjusting is carried out to scene；Gate function uses RFID radio-frequency techniques, is completed on the door by card reader Prohibit the automatic identification of card；Site safety adds in current detecting on fire prevention, anti-theft feature, and the effectively live member of prevention uses big work( The safety problem that rate occurs；System realizes voice control electric appliance function by sound identification module；With GSM the and WIFI communication technologys Based on, the communication between control terminal and mobile terminal is completed, realizes the remote control of the monitoring to environment in scene and electric appliance.

The present invention can provide an intelligence, safety, comfortable life cycle to the user based on the high speed development of technology of Internet of things Border.

Description of the drawings

Fig. 1 is the general frame figure of multi-functional onsite monitoring and safety-protection system based on Internet of Things；

Fig. 2 is power circuit principle figure；

Fig. 3 is display screen circuit diagram；

Fig. 4 is the application circuit schematic diagram of DHT11 digital hygro sensors；

Fig. 5 is Detection of Air Quality circuit diagram；

Fig. 6 is rainfall detection circuit diagram；

Fig. 7 is lighting detecting circuit schematic diagram；

Fig. 8 is RFID module circuit diagram；

Fig. 9 is flame detection circuit schematic diagram；

Figure 10 is electrical equipment current detecting and control relay circuit schematic diagram；

Figure 11 is the anti-theft circuit schematic diagram based on infrared tube sensor；

Figure 12 is relay circuit figure；

Figure 13 for motor-drive circuit schematic diagram (one of)；

Figure 14 is motor-drive circuit schematic diagram (two)；

Figure 15 is wifi transmission circuit schematic diagrams；

Figure 16 is nozzle and fire sensor distribution schematic diagram；

Figure 17 is the structure diagram of rotating spraying shower device；

Figure 18 is the structure diagram of sprayer；

Figure 19 adjusts circuit diagram for display backlight；

Figure 20 is constant-current charge schematic diagram；

Figure 21 is camera structure schematic diagram；

Figure 22 is the general structure schematic diagram (side view) of wireless charging system；

Figure 23 is the general structure schematic diagram (top view) of wireless charging system；

Figure 24 is schematic diagram when cover plate lid is closed；

Schematic diagram when Figure 25 lifts for cover board；

Figure 26 is the general structure schematic diagram (water tank is not shown) of multifunction aircraft；

Figure 27 is the structure diagram (top view) of quadrotor telescope support and rotor；

Figure 28 be the aircraft with quadrotor telescope support structure diagram (secondary rotor, holder is not shown in bottom view With the components such as camera)；

Figure 29 is the position relationship schematic diagram of main rotor and secondary rotor；

Figure 30 is the explosive view of telescopic cantilever；

Figure 31 is the structure diagram after telescopic cantilever is completed；

Figure 32 is the structure diagram of lock；

Figure 33 is the structure diagram of supporting leg；

Figure 34 is the structure diagram of hexagram stent and rotor.

Label declaration：21- outer arms, 22- inner arms, 23- main rotors, 24- jacks, 25- locks；26- pair rotors, 27- ducts Fan fixing member, 28- supporting legs, 29- chassis, 30- crossbeams, 31- intersect position, 32- stents；33- holders；51- housings, 52- pins, 53- hangnails, 511- outer housings, 512- briquettings, 513- compression springs；Camera on 70- aircraft, 71- camera lenses, 72- combined type mirrors Head, 73- shafts, 74- light-reflecting sheets, 75- photoemission and reception device, 76-CCD sensors, 77- fuselages；81- upper supporting legs, 82- springs, 83- guide rods, supporting leg under 84-, 85- sleeves, 86- feet nail, 87- gasket rings.301- subregions, 302- fire sensors, 303- nozzles.108- spray guns；116- drawstrings, 117- spray gun driving motors, 118- rotating platforms, 119- driven gears, 120- branch Support seat, 121- rotating platform driving motors, the first driving gears of 122-, 123- gunjet racks.111- crawler type walking mechanisms, 112- Support platform, the auxiliary water tanks of 113-；The sub- cameras of 114-, the auxiliary spray guns of 115-；71- camera lenses, 72- combined type camera lenses, 73- shafts, 74- light-reflecting sheets, 75- photoemission and reception device, 76-CCD sensors, 77- fuselages.201- recessed portions, 202- bottoms are lived Moving platform, the first motors of 203-, 204- limit switches, 205- guide rails, the first rack rails of 206-, the second driving gears of 207-, 208- code-discs, 209- traveling wheels, 210- hoistable platforms, the second rack rails of 211-, 212- conducting wires, 213- connect plugs, 214- hairs Ray circle, 215- scissor-type lifting mechanisms, 216- upper stratas movable platform, 217- push rods, the anti-press boxes of 218-, the movable lids of 219- Plate.

Specific embodiment

The present invention is described in further details below with reference to the drawings and specific embodiments：

Embodiment 1：Such as Fig. 1, whole system design is made of following six part：

(1) controller part, system possess the ability of display and input data.

(2) environmental monitoring subsystem.The location arrangements appropriate sensor composition environment sensing network of each needs at the scene For obtaining the real time data of every environmental information in scene, such as temperature, humidity, air quality, system is also by these data Basis for estimation and optimized integration as intelligent linkage system.

(3) intelligent entrance guard subsystem.Using RFID technique, access card is read by card reader and obtains authorization message.Every time When swiping the card, system all can intelligently identify the information of user, if it is determined that access control system can be automatically opened during live member, It allows access into, if it is determined that user swipes the card invalid, does not allow access into.

(4) intelligent security guard subsystem.Fire behavior is whether there is come monitoring field by flame sensor, is supervised by infrared sensor The live valuables of survey whether there is to overflow by movement, by current detection circuit come the electric current in monitoring field circuit whether there is, once Warning message will be sent by gsm communication module to the phone number that system is specified by noting abnormalities.

(5) intelligent linkage subsystem.After main control end sets the rule or condition of automation control, supervised by environment Data are controlled to realize to live electric light, water dispenser, scavenger fan, the control for shining clothing motor etc..When receiving phonetic order such as system, It is operated automatically by speech recognition, for example receives " turning on light " phonetic order to automatically open electric light, receive " turning off the light " language Electric light will be automatically closed in sound instruction.

(6) data transmission sub-system.By self-defining data transport protocol, site environment real time data is passed by WIFI It is defeated to be shown to mobile client, while receive the control instruction that cell phone application software is sent to live master control system.

Master controller in hardware system using ST companies produce based on Cortex^TM- M4's STM32F407ZGT6 chips, this 32 ARM chip operating rates reach as high as 168MHz, possess 1M FLASH, can be with Carry out floating-point operation.

In addition, such as Fig. 2-15, it is described as follows for specific peripheral circuit：

(1) power circuit：

Such as Fig. 2, input voltage is converted into 5V voltages by MP2359 and powered to system peripheral, passed through by power circuit ASM1117-3.3V voltage stabilizing chips are main control chip power supply.Wherein diode D3, D4, D5 utilizes one-way conduction characteristic, can be with Prevent reversal connection from burning system；Inductance L1 and capacitance C22, C23 etc. are mainly used to filter in circuit, ensure that power supply output is stablized.

(2) display circuit

Display screen circuit such as Fig. 3；TFT liquid crystal displays, which are shown, is driven to ILI9341, and touch chip is XPT2046.Base plate size For 5.1*8.3cm, display resolution 240x320.The effect of liquid crystal display is to provide human-computer interaction interface and control interface.

(3) Temperature and Humidity circuit

Such as Fig. 4, DHT11 is a fast response time, it is strong, cost-effective to resist noise immune, can be used with microcontroller The sensor for the measurement humiture that serial monobus communicates.

Operation principle：DHT11 digital hygro sensors have the function of to calibrate the output of humiture digital signal, inside bag Humidity sensing element containing resistance and NTC temperature elements can be accomplished to measure temperature and humidity simultaneously.

Due to being communicated using serial monobus and master controller, in the present system using STM32F407 PC4 pins and DHT11 data output pins connect.DHT11 sensors are mainly system acquisition data of the Temperature and Humidity module.

(4) Detection of Air Quality circuit

MQ-135 is a sensor for being applied to measurement air quality, has extensive investigative range, higher response And sensitivity, steady operation and other merits.

Operation principle：Such as Fig. 5, by the use of the SnO2 conductivities in air the characteristics of low as the gas sensitive of sensor, such as Fruit gaseous contamination degree increases, then sensor conductance rate can be caused to increase therewith, so as to draw corresponding signal Output, system, which only need to be acquired and compare to the output of this signal, can draw the contaminated degree of air.By sliding in circuit Dynamic rheostat VR1 compositions adjust circuit sensitivity, and MQ-135 sensors collect gas information, and to be then converted into voltage signal defeated Go out, sensor output voltage signal exports the level signal of entire circuit after LM393 voltage comparator shapings.Using serial Monobus communicates, in the present system using the PF13 pins of STM32F407 and air quality sensor data output pins Connection.MQ-135 is mainly system acquisition air quality data

The inverting input of the output termination operational amplifier LM393 of MQ-135, VCC ends are connect by variable resistor R49 Ground, the exit (partial pressure end) of variable resistor R49 connect the in-phase input end of operational amplifier LM393, operational amplifier LM393 works Make in comparator pattern, the output terminal of operational amplifier LM393 is the output terminal of Detection of Air Quality circuit, and the output terminal is through two Pole pipe LED10 and pull-up resistor R52 connects VCC ends, and when exporting high level, LED10 is lighted.Represent that air quality is good at this time.

(5) rainfall detection circuit

Such as Fig. 6, Raindrop sensor (or rain sensor) collection plate is using high-quality FR-04 double-side materials and uses nickel plating Cover surface, with to anti-oxidant, the superior functions such as satisfactory electrical conductivity.

Operation principle：Acquisition plate suqare is 5.0*4.0CM, can collect the information whether environment rains well, is led to Crossing LM393 voltage comparators causes signal output to have systematicness, and potentiometer can adjust comparison voltage size, is adjusted so as to reach Section output threshold.When in environment without raining, export as high level, when collection plate receives raindrop so as to turn on, output For low level.After rain stops, the raindrop on collection plate recover output as high level again after being dried.It can be by slide rheostat VR1 Composition adjusts circuit sensitivity, and Raindrop sensor collects raindrop information and is then converted into voltage signal output, sensor output Voltage signal exports the level signal of entire circuit after LM393 voltage comparator shapings.This circuit is also equipped with power supply instruction With the function of switch instruction, current limliting is carried out with the resistance of 1K in circuit, to prevent that electric current is excessive.It uses in the present system The PD3 pins of STM32F407 are connected with the data output pins of Raindrop sensor.Module major function is exactly to be provided for system The detection of the rainy information in outdoor.

The first of slide rheostat R9 fixes termination VCC (direct current power source voltage, 5V), the second fixing end ground connection；It slides and becomes The tap terminals (sliding end) of resistance device R9 connect operational amplifier device U2 (LM393 amplifiers) inverting input, the first termination of resistance R3 VCC ends, the second end of resistance R3 are grounded by Raindrop sensor；The second termination operational amplifier device U2's of resistance R3 is same mutually defeated Enter end；The output terminal of operational amplifier device U2 connects VCC ends by pull-up resistor R4；The output terminal of operational amplifier device U2 be used as than Compared with the output terminal of device namely the output terminal of rainfall detection circuit.

The output terminal of rainfall detection circuit also connects VCC ends by resistance R10 and diode, and diode (LED) 4 represents rain when bright It measures exceeded.

(6) lighting detecting circuit

Using photo resistance as photosensitive sensor, circuit diagram is referring to Fig. 7.

Photosensitive sensor be substantially exactly one with light variation and the changed resistance of resistance value, module is by photosensitive Resistance and voltage comparator and potentiometer composition.

Operation principle：Voltage is passed through so as to draw the power of ambient light to the measurement of photo resistance by circuit Compare output so that output is stablized, and is disturbed from single environment noise, and good output waveform, and driving force is strong, passes through electricity Position device can then adjust the sensibility that entire module detects light, circuit when given threshold is not achieved in ambient light brightness, DO ends export high level, when the brightness of external environment light is more than given threshold, DO ends output low level；Also have sensitivity can Regulatory function, is made of slide rheostat VR1 and adjusts circuit sensitivity, and photo resistance collects light information and is then converted into electricity Signal output is pressed, sensor output voltage signal exports the level signal of entire circuit after LM393 voltage comparator shapings. This circuit is also equipped with power supply instruction and switchs the function of instruction, current limliting is carried out with the resistance of 1K in circuit, to prevent that electric current is excessive. It is connected in the present system using the PC11 pins of STM32F407 with the data output pins of photosensitive sensor, PC11 pins are ADC gathers pin, to signal voltage collection analysis inside STM32, so as to draw light intensity.Module major function is detection ring The variation of border light, and gathered in time to system.

Circuit connecting mode is as follows：

The first of slide rheostat R6 fixes termination VCC (direct current power source voltage, 5V), the second fixing end ground connection；It slides and becomes The tap terminals (sliding end) of resistance device R6 connect operational amplifier device U1 (LM393 amplifiers) inverting input, the first termination of resistance R1 VCC ends, the second end of resistance R1 are grounded by photo resistance；The homophase input of the second termination operational amplifier device U1 of resistance R1 End；The output terminal of operational amplifier device U1 connects VCC ends by resistance R2；The output terminal of operational amplifier device U1 is as comparator The output terminal of output terminal namely lighting detecting circuit.

The output terminal of lighting detecting circuit also connects VCC ends, table when diode (LED) 2 is bright by resistance R7 and diode (LED) 2 Show that illumination is exceeded.

(7) RFID module circuit diagram

Such as Fig. 8, RC522 is the non-contact highly integrated of the 13.56MHz for the low-voltage low cost small size that NXP companies propose Read-write card is now widely used for the product developments such as intelligence instrument portable handheld device.

Operation principle：RC522 uses advanced modulation-demodulation technique, is integrated with all at 13.56 mhz passive and non-connects Communication pattern is touched, read-write antenna and the information of ISO14443A/MIFARE cards and answering machine can be driven to transmit.Possess demodulating and decoding The transponder signal of processing of circuit ISO14443A can also handle frame mistake, CRYPTO1 Encryption Algorithm.Bidirectional data communication Rate reaches 424kbit/s.RC522 uses serial communication, supports SPI, I2C, UART.

It connected with MISO lines using the PB4 pins of STM32F407, connected using PB5 pins and MOSI lines in the present system It connects, connected using PB3 pins with SCK line, connected using PG0 pins with SDA line.RC522 chips are driven by simulating SPI protocol It realizes technology for radio frequency, completes the reading writing working to IEC14443A agreement cards on this basis.The major function of module is just It is to make system by RC522 chip recognition access control system cards, so as to complete gate function.

(8) flame detection circuit

Flame sensor is the sensor for searching burning things which may cause a fire disaster, and the light generated to flame is especially sensitive.

Operation principle：The heat radiation generated using flame has the characteristics that discrete light radiation and continuous light radiation, so can Flame is distinguished to carry out strength investigation by 1~2 μm of near-infrared wavelength to flame temperature.The detection range of this sensor It is increased with the increasing of the intensity of flame, detection angle is 60 degree or so, and can reach tune by adjusting comparison voltage Save sensitivity.It is made of slide rheostat VR1 and adjusts circuit sensitivity, infrared receiving tube collects flame information and is then converted into Voltage signal exports, and sensor output voltage signal exports the level letter of entire circuit after LM393 voltage comparator shapings Number.It is connected in the present system using the PD6 pins of STM32F407 with the data output pins of flame sensor.Flame sensor The function of circuit is exactly to whether there is fire behavior for system detectio scene, and circuit connection is as shown in Figure 9.

(9) electrical equipment current detecting and control relay circuit

Smart fields system can prevent site safety problem well to the detection of live electricity consumption, the electric current inspection used Slowdown monitoring circuit operating voltage is 5V, and bearing power can connect 220V/40A equipment.

Operation principle：It is inserted by live alternating current wires in current transformer (or coil), generates current transformer mutual Inducing current, live electric power is bigger, and mutual inducing current is also bigger, and live electric power is smaller, and mutual inducing current is also just smaller, because This utilizes voltage comparator, as soon as a signal waveform can be exported, the electric current that master controller can obtain scene by AD acquisitions is big Small information, so as to reach detection effect.In circuit design, AC mutual induction electric current is converted into directly by four rectifier diodes Galvanic electricity stream carries out power filter with C3, forms current loop by R2, the voltage that circuit need to only measure R2 both ends is i.e. available Export signal, by output signal voltage by MCP602 voltage comparators and reference voltage be compared to control relay and

Export signal, relay play the role of overcurrent deenergization protection, output signal then there are two types of, one kind for simulation Amount, is exported by DOUT, and it is TTL low and high levels to also have a kind of, is exported by AOUT.Major function is for system detectio scene electric current. Detailed circuit design is illustrated in fig. 10 shown below

U4 is voltage follower.

Circuit describes：

Such as Figure 10, current transformer L2 is in parallel with resistance R17, and the output signal of current transformer is through bridge rectifier；Bridge The first end of the DC side of formula rectifier is signal end, and second end is grounded；The signal end connects through resistance R16 and resistance R14 Ground；The tie point of resistance R16 and resistance R14 connects the in-phase input end of operational amplifier U3 (being used as comparator), and computing is put The inverting input of big device U3 is grounded by resistance R19, and the output terminal of operational amplifier U3 meets triode Q4 (NPN through resistance R18 Type triode) b poles, the e poles ground connection of triode Q4, the output terminal of operational amplifier U3 is grounded by resistance R21；

One end of the c poles contact relay coil of triode Q4, another termination VCC of relay coil；The contact of relay Switch is serially connected in the power supply circuit (or socket) of electrical equipment.

Meanwhile the signal end is also output to the ADC ports (A/D of MCU by voltage follower U4 and resistance R27 Conversion port), realize the real-time detection of electric current.

(10) the antitheft detection circuit based on infrared sensor

Infrared tube sensor is worked using emitting infrared ray and receiving infrared-ray as medium, by infrared transmitting tube, The compositions such as infrared receiving tube, comparator.It is moved by infrared sensor come monitoring field valuables whether there is.

Operation principle：Such as Figure 11, infrared signal is emitted by transmitting tube, reception pipe receives, once reception pipe does not receive There is obstruction in bright centre, whether can be used in detection object by mobile direction.The modular circuit can be well adapted for residing Ambient light, high-low signal level can be exported after comparator is handled.With it is anti-interference, be easily achieved, at low cost etc. Advantage.Infrared receiving tube collects infrared ray information and is then converted into voltage signal output, and sensor output voltage signal passes through The level signal of entire circuit is exported after LM393 voltage comparator shapings.This circuit is also equipped with power supply instruction and switchs instruction Function.Current limliting is carried out with the resistance of 1K in circuit, to prevent that electric current is excessive.Drawn in the present system using the PF12 of STM32F407 Foot is connected with the data output pins of infrared sensor.Major function be for system provide important objects position whether there is it is mobile Information.Circuit connecting mode is as follows：

The first of slide rheostat R62 fixes termination VCC (direct current power source voltage, 5V), the second fixing end ground connection；It slides and becomes The tap terminals (sliding end) of resistance device R6 connect the inverting input of operational amplifier device U8 (LM393), as the reference voltage；

Vcc ends are grounded through resistance R58 and transmitting tube, are powered for transmitting tube；The first end of infrared receiving tube is connect by R59 VCC ends, the second end ground connection of infrared receiving tube；The same phase of first termination operational amplifier device U8 (LM393) of infrared receiving tube Input terminal；

The output terminal of operational amplifier device U8 connects VCC ends by resistance R60；The output terminal of operational amplifier device U8 be used as than Compared with the output terminal of device namely the output terminal of anti-theft circuit.

The output terminal of anti-theft circuit also connects VCC ends, table when diode (LED) 12 is bright by resistance R61 and diode (LED) 12 Show that valuables are stolen.

(11) relay circuit figure

Such as Figure 12, relay is a kind of electronic switch controller part, it has input circuit and output loop, input circuit Control signal can be widely used in the connection and disconnection of the output of output control loop in automatic control circuit.

Operation principle：In input circuit the actuation and disconnection that control internal magnetic induction loop to connection are gone with smaller electric current Reach the signal output of output control loop, it can be by the Automatic Electronic Switch of external signal control function so as to possess.At this The control object of system is used as in system, by controlling the switch of relay, removes the electric appliance to be controlled indirectly.This Need to use the electric appliance of relay in system for access control, water dispenser.The PG1 pins of STM32F407 are used in the present system Access control switchs, and switch of water dispenser is controlled using PD3 pins.

(12) motor-drive circuit

It is required for using motor when exhaust fan rotates and rain recycling clothes, since motor direct-electrifying speed is not met Design requirement, thus speed when needing to work to motor is controlled by, so introducing PWM wave, PWM ripples are that a kind of pulse is wide Spend modulation technique, can carry out simulation control to motor, motor need of work high current, in circuit for combine PWM controls and High current is provided to motor, selection is driven with metal-oxide-semiconductor SI2302, and controller controls metal-oxide-semiconductor by exporting PWM wave The break-make of SI2302, so as to achieve the purpose that control motor speed.Connected in the present system using the PC0 pins of STM32F407 PWM1, PC1 connect PWM2., circuit design is as shown in Figs. 13 and 14.

(13) data transmission sub-system

ESP8266 is a WIFI module that transparent transmission is carried out by UART-WiFi for having super low-power consumption property, is current WIFI equipment on the market provides the Networking Solutions ＆ provisioned of an integral framework, it can be used alone independent operating, also may be used To be used as slave and the collocation of other console controllers.When making slave, SPI/SDIO interfaces or I2C/ can be passed through UART interface and host are communicatively coupled.So as to fulfill the function of access internet.

Operation principle：Two kinds of connection modes are provided by using SDK to work.The first uses udp broadcast pattern, ESP8266 first scans lower AP, obtains the relevant information of AP, such as the passage of work, then configures WIFI chip operations and is swept just now Retouch to passage on go receive UDP bags, if be not received by, continue configuration ESP8266 be operated on other passage, so Xun Huan, until receiving UDP bags.Second is AP accesses, is mainly driven herein using Espressif AT command sets ESP8266 chips work.It is connected in the present system using the serial ports 6 of STM32F407 with ESP8266 modules, PA1 pins connect TX, PA0 connect RX.Major function is to provide the data transfer mode based on ICP/IP protocol for system, enables a system to directly connect Enter internet, data source is provided for mobile phone terminal APP softwares.Circuit design is as shown in figure 15.

In addition, there is (13) gsm communication module

The main body chip of gsm communication module is SIM900A, is GSM/GPRS double frequency modules.Its dependable performance is stablized, sexual valence Than high, the diversified demand of user disclosure satisfy that.

Operation principle：Downlink transmission rate is up to 85.6kbps, and uplink transmission rate is up to 42.8kbps.It is at this System only uses AT instructions and completes short message sending function.It is connected in the present system using serial ports 3 with module serial interface, PB10 connections TX, PB11 connect RX.Major function is that the realization of the security function for system provides the transmission of information.

(14) sound identification module

Voice recognition chip LD3320 is to be designed to produce by ICRoute companies, and the module is by speech chip and processor structure Into voice signal process part, the collecting part of voice signal is made of microphone, operational amplifier chip, triode etc., including AD, D/A converter, the parts such as serial ports and power supply voltage stabilizing.

Operation principle：By the distinctive voice-optimizing Processing Algorithm of ICRout companies, signer-independent sign language recognition is completed, and And be not required to recording and training in advance, recognition accuracy is up to 96%.Identification can set 50 candidates to identify sentence, identification every time Sentence can be by individual character, word, long and short verse composition, but length may not exceed the pinyin combinations of 10 Chinese characters or 79 bytes.It is at this It is connected in system using the serial ports 6 of STM32F407 with voice module, PD2 pins connect TX, PC12 and connect RX.Major function is for system Speech identifying function is provided, gather phonetic order and is exported to master controller.

In the present invention, spray equipment is one of its core；

Fire detection device be fire sensor, Smoke Detector, flame sensor and thermal infrared probe at least one of, Or fire detection device uses infrared camera.

Spray equipment has 3 kinds of preferred method：

Embodiment 1：

Such as Figure 16, field regions are divided into N number of subregion, 301, at least provided with a fire sensor in each subregion； Spray equipment includes N number of nozzle (303), sets that there are one nozzles in each subregion, it is preferred that nozzle is arranged on above subregion On stent above ceiling or subregion, N is the natural number more than or equal to 4.N=9 herein；

Embodiment 2：

Such as Figure 17, spray equipment is the rotary spray dress on the ceiling above setting at the scene or the stent of top It puts；

At this point, (1) fire sensor is multiple, it is distributed using array；If some or sensor detect at this time A certain region is there are fire behavior, then the spray gun on rotating spraying shower device control rotating spraying shower device rotates to be registered to the region Implement sprinkling fire-distinguishing；

Alternatively, (2) fire sensor uses infrared camera, the position of fire point is obtained through image procossing, then rotary spray Spray gun on device control rotating spraying shower device rotates to be registered to fire point region implementation sprinkling fire-distinguishing.

The rotating spraying shower device includes support base, rotating platform 118 and rotating platform driving motor 121；Spray gun 108 are arranged on rotating platform；

Rotating platform driving motor can drive rotating platform to rotate by the first transmission mechanism；Rotating platform is equipped with spray gun Driving motor 117, spray gun driving motor can pass through the angle of depression of the second transmission mechanism control main jet rifle；

First transmission mechanism is gear or belt wheel transmission mechanism；

Second transmission mechanism is electric pushrod or drawstring 116, when the second transmission mechanism is drawstring, the lower end of drawstring The front end of spray gun is arranged on, the upper end of drawstring is in the shaft mounted in spray gun driving motor；Spray gun is mounted in gunjet rack 123 On, it is hinged with gunjet rack, therefore, spray gun front end is downward under the effect of gravity, and therefore, the angle of depression is completely by drawstring control System.

Embodiment 3：Implement to spray water using sprayer

Such as Figure 18, crawler type sprayer is equipped with sub- camera 114 and auxiliary spray gun 115.

Crawler type sprayer is connected by water pipe with main water box；And crawler type sprayer is equipped with auxiliary water tank 113.Son Camera is for monitoring water spray action and fire-extinguishing location state, and for auxiliary spray gun for spraying water, crawler type sprayer has radio communication mold Block is controlled by remote terminal (such as mobile phone).

Fire extinguishing control method：Step 1：Monitoring fire point position；Step 2：MCU control spray equipments implement fire extinguishing；

In step 1, the method for monitoring fire point position has 2：(1) the multiple fire sensors arranged by array detect Fire point position；(2) by infrared camera and based on image procossing monitoring fire point position；(image procossing is existing mature technology)； In step 2, controlling the method for fire extinguishing has 2：(1) nozzle of fire area (subregion) is controlled to implement water spray；(2) spray gun is controlled Rotary alignment fire point implements sprinkling fire.

In addition, MCU is connected with display screen, Figure 19 is the light adjusting circuit of display backlight, i.e. brightness regulating circuit；

The brightness regulating circuit includes MCU, LED light string, triode, potentiometer Rx and A/D converter；Triode For NPN type triode；Rotary switch is additionally provided on the fixed frame of display screen with potentiometer Rx to be coaxially connected；

Potentiometer Rx and first resistor R1 concatenates to form partial pressure branch, and partial pressure branch one terminates positive pole Vcc, partial pressure The other end ground connection of branch；The tie point of potentiometer Rx and first resistor R1 connect the input terminal of A/D converter；A/D converter The data-in port of output termination MCU；

LED light string includes the LED light of multiple concatenations；The anode of LED light string meets positive pole Vcc；The cathode of LED lamp strings The C poles of triode are connect, the E poles of triode are grounded through second resistance R2；The output terminal for meeting MCU of the B poles of triode.Power supply is just Pole Vcc is 5V, and A/D converter is 8 Bits Serial output type converters.

Constant-current charging circuit is as shown in figure 20, is charged by constant-current charging circuit for lithium battery, in constant-current charging circuit, respectively Element or label declaration：

VIN+----- input power anodes.

VIN------ input power cathode.

VOUT+----- out-put supply anodes.

VOUT----- out-put supply cathode.

The anode of VREF+----- reference power sources

C1 is input filter capacitor.

C2 is output filter capacitor.

C3 is current sample feedback filtering.

R1, R2, R5, C3 form current sample feedback line.

R3, R4 are voltage sample feedback circuit.

D1 is isolation diode.

Constant-current charging circuit includes constant pressure driving chip and current feedback circuit；

(1) voltage output end of constant pressure driving chip is the positive output end VOUT+ of constant-current charging circuit；Constant pressure driving chip Negative output terminal ground connection；

Constant pressure driving chip is powered by DC-voltage supply end VIN+ and VIN-；

(2) current feedback circuit described in includes resistance R1, R2 and R5 and reference voltage end VREF+；

Reference voltage end VREF+ is grounded by resistance R1, R2 and the R5 being sequentially connected in series；

The tie point of resistance R5 and R2 are the negative output terminal VOUT- of constant-current charging circuit；

The tie point of resistance R1 and R2 meet the feedback end FB of constant pressure driving chip.

Constant-current charging circuit further includes voltage feedback circuit；

Voltage feedback circuit includes resistance R3 and R4 and diode D1；

Resistance R3 and R4 series connection are followed by between the positive output end VOUT+ and ground of constant-current charging circuit；Resistance R3's and R4 Tie point connects the anode of diode D1；The cathode of diode D1 meets the feedback end FB of constant pressure driving chip.

Operation principle explanation：

Using stable reference power supply as reference voltage, using R1, R2, R5 divide to obtain the voltage equal with FB, so as to By FB the inside PWM of adjustment DCDC IC is gone to control the size of output current.For example, when output current becomes larger, in sampling electricity Voltage on resistance R5 will raise, and since VRFE+ is fixed value, so as to be that FB voltages become larger, FB becomes larger, and duty cycle will subtract It is few, so as to be that output current is reduced, and a complete feedback is completed, achieve the purpose that stabling current exports.

This scheme introduces fixed VREF+, so that Io becomes one equation linear with R5 sample resistances, Io is made to become constant, so as to achieve the purpose that constant current.

In addition, such as Figure 21, camera (i.e. camera) includes fuselage 77 and combined type camera lens 72；Multiple CCD are equipped in fuselage Sensor 76, fuselage are equipped with for the photoemission of alignment lens and reception device 75；

Combined type camera lens is equipped with shaft 73；4 sub- camera lenses 71 are integrated in combined type camera lens；Sub- camera lens is along combined type mirror Head is arranged circumferentially；The rear end of combined type camera lens is additionally provided with the light-reflecting sheet being adapted to the photoemission with reception device 74；It is additionally provided with to drive the stepper motor of rotation of lens in fuselage.Photoemission can be with reception device and light-reflecting sheet More sets, preferably 2 sets, in axisymmetrical, alignment result is more preferable, and only 2 sets of photoemission and reception device and light-reflecting sheet are all right After standard, just think that camera lens is targeted by with ccd sensor, such alignment precision higher.Multiple sub- lens focus are different, for monitoring Different visual angles, flexibility are good.

In addition, sprayer uses lithium battery, as power, therefore, smart fields system is additionally provided with to spray water for sprayer Charging system.Such as Figure 22-25, wireless charging module including the support platform being arranged in recessed portion 201 and is arranged on support Transmitting coil 214 on platform；The support platform includes underlying activities platform 202, upper strata movable platform 216 and connection bottom The elevating mechanism of layer movable platform and upper strata movable platform；Underlying activities platform is equipped with longitudinal translation mechanism；Upper strata activity is flat Platform is equipped with laterial translation mechanism.The elevating mechanism is cylinder formula elevating mechanism or scissor-type lifting mechanism 215.Cylinder formula lifts Mechanism is push-down driving mechanism, such as uses pneumatic cylinder or Driven by Hydraulic Cylinder.Longitudinal translation mechanism includes being arranged on recessed portion bottom 205 and first rack rail 206 of guide rail in portion；The guide rail is 2；Rack rail is one, rack rail and guide rail parallel cloth It puts；Underlying activities mesa base is equipped with multiple traveling wheels 209 that can be rolled on the guide rail；Traveling wheel is 4, one side 2 It is a.The front end of underlying activities platform is equipped with the first motor 203；The shaft of first motor be equipped with gear 207, gear with it is described First rack rail engages；When first motor rotates, underlying activities platform can be driven along (front and rear) translation in the first rack rail longitudinal direction.It is horizontal Include the second rack rail 211 and the second motor to translation mechanism；Second rack rail is laterally set, and the second motor upper strata is lived Moving platform left or right；The shaft of second motor is equipped with the gear being meshed with second rack rail, the rotation of the second motor When turning, upper strata movable platform can be driven along laterally (left and right) translation of the second rack rail.The shaft of first motor and the second motor On be equipped with code-disc 208.Code-disc is used to detect the number of turns of motor rotation, so as to be converted into the displacement of platform traveling.Recess The opening in portion is equipped with electronic removable type cover plate 19.It is electronic to refer to that motor driving or electric signal control hydraulic cylinder or cylinder drive It is dynamic.Removable type cover plate is 2 pieces, is equipped with to drive the push rod of removable type cover plate, the upper end of push rod and movable lid in recessed portion Plate ground is connected.The opening of recessed portion is additionally provided with anti-pushing-down mechanism 210, and when removable type cover plate flattens, anti-pushing-down mechanism can support work Dynamic formula cover board.Anti-pushing-down mechanism is square frame-shaped.Using stainless steel or cast iron quality, intensity is high.The sprayer wireless charging system System further includes control unit, and control unit includes MCU, and laterial translation mechanism and longitudinal translation mechanism are controlled by MCU；MCU is also It is connected with communication module.Limit switch and code-disc output signals to MCU；First motor and the second motor is stepping electricity Machine.First rack rail is located between 2 guide rails.The rear end of underlying activities platform is equipped with limit switch 204；The front end of motor is equipped with Limit switch 204.Limit switch acts, and illustrates front or behind in place, stops motor and rotates, so as to ensure whole equipment safety Operation.Underlying activities platform is equipped with the conducting wire with connect plug 213.Conducting wire obtains alternating current for connecting, so as to be emission lines Circle power supply.MCU and single-phase bridge rectification and inverter circuit are additionally provided on underlying activities platform；Single-phase bridge rectification and inversion electricity Road includes rectifier bridge and inverter bridge, and rectifier bridge uses 4 power diodes, and inverter uses 4 IGBT, and connection mode is existing Mature technology, the G poles of IGBT are controlled by the pulse that MCU is sent.The input side of rectifier bridge connects with alternating current, the output of rectifier bridge Side connects transmitting coil by inverter；Rectifier bridge is used to alternating current becoming direct current, and inverter is used to change into direct current not The alternating current of same frequency changes frequency to improve charge efficiency.

In addition, video monitoring can be carried out to scene using multi-functional aerial photography aircraft, it may be necessary to carry out spray and go out Fire.Such as Figure 26-34, multi-functional aerial photography aircraft, including stent 32, rotor, bottom plate 29, holder 33, supporting leg 28 and camera 70； Rotor and holder are arranged on stent；Bottom plate is fixed on frame bottom；Camera is mounted on holder；Supporting leg is fixed on the bottom of bottom plate Portion；Camera includes fuselage 77 and combined type camera lens 72；Ccd sensor 76 is equipped in fuselage, fuselage is equipped with for alignment lens Photoemission and reception device 75；Combined type camera lens is as shown in figure 21.Supporting leg be 4, supporting leg is vertically arranged, adjacent legs it Between be provided with horizontal crossbeam；Supporting leg includes upper supporting leg 81, lower supporting leg 84 and foot nail 86；Upper supporting leg lower end is equipped with guide groove； Lower supporting leg upper end is equipped with guide rod 83；Guide rod is inserted into guide groove；Spring 82 is equipped in guide groove；Spring is arranged on The roof (inner wall of innermost end) of guide groove is between guide rod top；The lower end of lower supporting leg is equipped with foot and follows closely 86.Lower supporting leg The outer wall of lower end is equipped with external screw thread；The lower end of lower supporting leg is socketed with tapped sleeve 85, and the lower end of sleeve is equipped with pad Ring 87.Gyroscope and wireless communication module are additionally provided on chassis.For gyroscope for navigating, wireless communication module is distant for receiving The instruction of device is controlled, and the photo of shooting and video information are transmitted to ground receiver end equipment.The stent is by 4 structures The cross-shaped cantilever frame of identical telescopic cantilever composition；Each telescopic cantilever includes outer arm 21 and inner arm 22；Outer arm Inner end is connected with the outer end of inner arm by lock 25；Lock is equipped with the pin 52 with hangnail 53；It latches to be multiple；Outer arm Inner end and the outer end of inner arm be equipped with multigroup jack 24 passed through for pin；Every group of jack includes at least two jack； Rotor includes main rotor and secondary rotor；Main rotor 23 and secondary cantilever 26 are equipped in the outer end of outer arm；Main rotor and secondary cantilever are total to Axis is set, and main rotor is located at the top of outer arm, and secondary rotor is located at the lower section of outer arm；The paddle footpath of main rotor is more than secondary rotor Paddle footpath；Secondary rotor is ducted fan, and secondary rotor is fixed on the bottom of outer arm by ducted fan fixing piece 7；Lock has housing 51；Housing includes outer housing 511, briquetting 512 and compression spring 513；Pin is 2；Pin is fixed on outer housing；Briquetting is located at outer In housing and it is sleeved on 2 pins；Briquetting can be moved along pin；Compression spring is equipped between briquetting and pin, compression spring sleeve is mounted in slotting The root of foot.The inner end of outer arm is equipped with 2 groups and is used for the jack that pin passes through；Every group of jack on outer arm includes 2 jacks；Lock It detains as 2；4 groups are equidistantly equipped on the outer end of inner arm and is used for the jack that pin passes through；Every group of jack on inner arm includes 2 Jack.The ratio between the paddle footpath of secondary rotor and the paddle footpath of main rotor are 0.2-0.35；Preferred value is 0.25 and 0.3.Gasket ring is rubber material Matter, foot nail are stainless steel.Another aircraft is as shown in figure 23, and stent is to be made of the identical lateral strut of 6 root long degree Hexagram stent；Each angle position of hexagram stent is both provided with rotor.Rotor includes main rotor and secondary rotor； The outer end of outer arm is equipped with main rotor 23 and secondary cantilever 26；Main rotor and secondary cantilever coaxial line are set, and main rotor is located at outer arm Top, secondary rotor is located at the lower section of outer arm；The paddle footpath of main rotor is more than the paddle footpath of secondary rotor；Secondary rotor is ducted fan, secondary Rotor is fixed on the bottom of outer arm by ducted fan fixing piece 27.Further, in each intersection of hexagram stent Rotor is equipped at position, the position that intersects intersects corresponding position for the X that adjacent lateral strut is formed；It is such a to fly Row device just has 12 or 12 groups of rotors.The ratio between the paddle footpath of secondary rotor and the paddle footpath of main rotor are 0.25 or 0.3.Aircraft has The characteristics of following prominent：

(1) its foot stool uses the buffer mode of guide groove-conductor rod-spring, and effective buffering can be provided for aircraft, ties Structure is simple, easy to implement, in addition, the use of crossbeam strengthens the rigidity of entire foot stool so that all legs are connected, more Further, the bottom of lower support leg is provided with foot nail and gasket ring, and when sleeve removes or screws on, foot nail works so that aircraft is fitted For in soft place (such as field soil) landing, if sleeve is rotated downwardly to gasket ring and lower position, gasket ring is followed closely than foot It works so that aircraft is suitable in hard place (such as concrete floor) landing, and suitability is good.

(2) in addition, its camera uses the combined type camera lens from camera lens of switching, 4 differences are integrated in combined type camera lens The camera lens of focal length, for the photo to object shooting different visual angles, flexibility is good；The photoemission set on camera and reception The light-reflecting sheet set on device and camera lens is aligned for sub- camera lens with ccd sensor, combined type camera lens by driving stepper motor, Alignment precision is high, and sub- Shot change is convenient.This camera has the outstanding quality of fixed-focus head, it may have changes the flexible of focal length Property, therefore, practicability is good.

(3) telescopic cantilever is used；

Its telescopic cantilever uses the two-part stretching structure of outer arm-inner arm, and it is convenient to stretch；And outer arm and inner arm pass through it is only Special lock is connected, and for lock with hangnail, inserting is convenient, and in addition lock is equipped with compression spring and briquetting, can ensure that locking is firm.Always For it, this four axis rotor craft clever structures with telescopic cantilever, flexibility is good, convenient for disassembly and assembly.

(4) hexagram rotor is used；Using the hexagram stent of original creation, this support stability is good, due to each A rotor be all located at angle position, and each angle position all in vertex of a triangle, by 2 strut supports, and due to triangle The stability of itself, the vertex is there is no any offset or drift during flight, accordingly, with respect to regular hexagon, cross Stent or other stents have great stability in terms of advantage.In addition, the arrangement of 6 rotors, compared to 2-4 rotors Arrangement, have better aerodynamic arrangement, to sum up, this six rotorcraft clever structure, stability are good.Work as friendship When vent sets rotor again, aircraft lift can further enhance.

(5) using ducted fan as secondary rotor, for ducted fan for providing auxiliary lifting, ducted fan is fast with response The advantages of, it can so improve the whole loading capacity and stability of aircraft.

The multi-functional aerial photography aircraft integrated level of the present invention is high, compact-sized, not only has the aviation mechanism haveing excellent performance, Also have the supporting leg of unique pooling feature, further, also there is the camera of original creation, therefore, this multi-functional aerial photography aircraft Feature-rich, safe, clever structure, lift is big, has a smooth flight, easy to implement.

Claims (10)

1. a kind of field monitoring and security protection control method based on Internet of Things, which is characterized in that comprise the following steps：

Step 1：Monitoring fire point position；

Step 2：MCU control spray equipments implement fire extinguishing；

Fire prevention and control are realized using the multi-functional onsite monitoring based on Internet of Things and safety-protection system；

Multi-functional onsite monitoring and safety-protection system based on Internet of Things include MCU, camera, communication module, fire detection device And spray equipment；

Camera, communication module and fire detection device are connected with MCU；

Camera is used to obtain monitoring image or video；

Field data is transferred to remote monitoring end or received from remote monitoring by communication module for communicating with remote monitoring end The control instruction at end；

Spray equipment is controlled by MCU；Spray equipment is used to spray water to put out a fire；

Fire detection device be fire sensor, Smoke Detector, flame sensor and thermal infrared probe at least one of or Fire detection device uses infrared camera.

2. field monitoring and security protection control method according to claim 1 based on Internet of Things, which is characterized in that pass through battle array Multiple fire sensors detection fire point position of column arrangement；

Field regions are divided into N number of subregion (301), at least provided with a fire sensor in each subregion；Spray equipment bag N number of nozzle (303) is included, is set in each subregion there are one nozzle, N is the natural number more than or equal to 4.

3. field monitoring and security protection control method according to claim 1 based on Internet of Things, which is characterized in that control The nozzle of fiery subregion implements sprinkling fire.

4. field monitoring and security protection control method according to claim 1 based on Internet of Things, which is characterized in that by red Outer camera simultaneously puts position based on image procossing monitoring fire；(image procossing is existing mature technology).

5. field monitoring and security protection control method according to claim 1 based on Internet of Things, which is characterized in that control spray Rifle rotary alignment fire point implements sprinkling fire；

Spray equipment is the ceiling above setting at the scene or the rotating spraying shower device on the stent of top；

At this point, (1) fire sensor is multiple, it is distributed using array；If some or sensor detect a certain at this time Region is there are fire behavior, then the spray gun on rotating spraying shower device control rotating spraying shower device rotates to be registered to region implementation Sprinkling fire-distinguishing；

Alternatively, (2) fire sensor uses infrared camera, the position of fire point is obtained through image procossing, then rotating spraying shower device Spray gun on control rotating spraying shower device rotates to be registered to fire point region implementation sprinkling fire-distinguishing；

The rotating spraying shower device includes support base, rotating platform (118) and rotating platform driving motor (121)；Spray gun (108) it is arranged on rotating platform；

Rotating platform driving motor can drive rotating platform to rotate by the first transmission mechanism；Rotating platform drives equipped with spray gun Motor (117), spray gun driving motor can pass through the angle of depression of the second transmission mechanism control main jet rifle；

First transmission mechanism is gear or belt wheel transmission mechanism；

Second transmission mechanism is electric pushrod or drawstring (116), and when the second transmission mechanism is drawstring, the lower end of drawstring is set It puts in the front end of spray gun, the upper end of drawstring is in the shaft mounted in spray gun driving motor；Spray gun is mounted in gunjet rack (123) On, it is hinged with gunjet rack, therefore, spray gun front end is downward under the effect of gravity, and therefore, the angle of depression is completely by drawstring control System.

6. field monitoring and security protection control method according to claim 3 based on Internet of Things, which is characterized in that camera Imaging sensor be N1, the camera lens of camera is the combined type camera lens with N1 sub- camera lenses, and N1 is more than or equal to 3 Integer.

7. existed according to field monitoring of the claim 1-6 any one of them based on Internet of Things and security protection control method, feature In MCU is connected with Temperature Humidity Sensor, rain sensor, air quality sensor, optical sensor and current transformer.

8. field monitoring and security protection control method according to claim 7 based on Internet of Things, which is characterized in that based on object The multi-functional onsite monitoring of networking and safety-protection system further include executing agency, and executing agency includes electric clothes hanger, ventilating fan With the relay for controlling electrical equipment powered off and on；Multi-functional onsite monitoring and safety-protection system based on Internet of Things are also wrapped Include the stand-by power supply based on lithium battery and the constant-current charging circuit for charging for lithium battery.

9. field monitoring and security protection control method according to claim 1 based on Internet of Things, which is characterized in that communication mould Block includes wire communication module and wireless communication module；Wire communication module is WLAN module, and wireless communication module is WiFi moulds At least one of block, GPRS, 3G, 4G and 5G communication module；

Field monitoring and security protection control method based on Internet of Things are further included to be filled based on the gate inhibition of RFID card reader and electric door lock It puts.

10. field monitoring and security protection control method according to claim 7 based on Internet of Things, which is characterized in that also wrap Include electrical equipment current detecting and control relay circuit based on the current transformer；Circuit structure is as follows：

Current transformer L2 is in parallel with resistance R17, and the output signal of current transformer is through bridge rectifier；Bridge rectifier it is straight The first end of side is flowed for signal end, second end ground connection；The signal end is grounded through resistance R16 and resistance R14；Resistance R16 with The tie point of resistance R14 connects the in-phase input end of operational amplifier U3 (being used as comparator), the reverse phase of operational amplifier U3 Input terminal is grounded by resistance R19, and the output terminal of operational amplifier U3 meets the b of triode Q4 (NPN type triode) through resistance R18 Pole, the e poles ground connection of triode Q4, the output terminal of operational amplifier U3 are grounded by resistance R21；

One end of the c poles contact relay coil of triode Q4, another termination VCC of relay coil；The contact switch of relay It is serially connected in the power supply circuit of electrical equipment；

Meanwhile the signal end is also output to the ACD ports of MCU by voltage follower U4 and resistance R27, realizes electric current Real-time detection.