CN103774973A - Intelligent shutter control system and method - Google Patents

Abstract

The invention relates to an intelligent shutter control system and an intelligent shutter control method which have the advantages that the wiring operation is avoided, the intelligent level is high, the efficiency is high and the energy is saved. The intelligent shutter control system comprises a remote control terminal and a coordinator unit, wherein the remote control terminal communicates with the coordinator unit through a wireless and Ethernet communication method to complete the setting of system parameters and the enquiry of information; the coordinator unit remotely communicates with the remote control terminal, establishes ZigBee communication with a driver unit and a sensor unit, and is used for receiving daylighting information and user commands and feeding back the field information to the remote control terminal. The system has a PID (Proportion Integration Differentiation) control function which adopts fuzzy control, and the illumination intensity can be self-tuned according to recorded user setting favorites.

Description

A kind of sun blind intelligence control system and control method

Technical field

The present invention relates to one to improve room lighting environment, the intelligence control system that comfortableness is target, specifically relates to a kind of sun blind intelligence control system and control method, belongs to automatic control technology field.

Background technology

Along with the development of modern architecture science technology and popularizing of Informationization Equipment, in modern architecture, the intellectuality of control appliance has become the trend of current architectural development.Traditional sun blind control mode can not meet the demand of people to household comfortableness and automation, and intellectual electronic shutter progresses into daily life becomes the thing of the indispensability of modern architecture.At present, some shutter control systems that occur on market also belong to a great extent manual control and mainly have the following disadvantages:

(1) system adopts wired control mode more, and wiring is complicated, and cost is high.

(2) cannot realize telemonitoring and the control of shutter state.

(3) can not according to installation site towards, season and every day different time sections regulate.

(4) be by lifting the illumination in curtain conditioning chamber mostly, lack the adjusting to curtain blade angle.

(5) lack user is controlled to the record of custom the function of correction.

(6) lack timing open and close function.

(7) present shutter can only manually regulate height mostly, can not automatically adjust according to indoor and outdoor intensity of illumination comfortableness

Poor, efficiency of energy utilization is lower.

Summary of the invention

In order to solve the deficiency existing in prior art, the invention provides a kind of sun blind intelligence control system and control method that complexity connects up, intelligent degree is high, energy-efficient, light comfort level is good of avoiding.

For achieving the above object, the present invention by the following technical solutions:

A kind of sun blind intelligence control system, it comprises:

Actuator unit, adopts fuzzy control mode regulation shutter blade angle and overall aperture;

Sensor unit, gathers indoor and outdoors illuminance and indoor occupant and has or not information, and send into telegon unit and actuator unit;

Telegon unit, carry out wired and/or radio communication with remote control terminal, with between actuator unit and sensor unit, set up ZigBee-network and communicate by letter, the instruction that the illuminance that receiving sensor unit sends and indoor occupant have or not information and user to send, and the state of sensing data and field control is delivered to remote terminal;

Long-distance Control; Terminal, comprises mobile phone and various computer, adopts Ethernet and wireless transmission method and telegon unit communication, the inquiry of the setting of completion system parameter and user, environmental information.

Described telegon unit comprises:

Processor module, has been responsible for the conversion of agreement and has coordinated other module operation of this unit;

3G module, realizes communicating by letter of telegon unit and remote control terminal;

Human-computer interaction module, completes setting parameter and information inquiry;

Communication state indicating module, for showing Ethernet and ZigBee communication state;

Memory module, for storing intensity of illumination, personnel have or not information and communication state data;

ZigBee coordinator node, realizes ZigBee communication network and sets up.

Described actuator unit comprises:

Drive processes module, the fuzzy table of PID that its storage inside is set up based on actual commissioning experience and the sun irradiation angle table of setting up towards, season and time according to curtain difference, and draw expectation intensity of illumination now according to this;

Shutter driver module, the control of curtain entirety aperture and curtain blade angle, both adopts the control of fuzzy mode.Wherein curtain entirety aperture adopts DC MOTOR CONTROL, comprises that direct current generator turns to control and rotating speed control, and rotating speed is completed by PWM copped wave; Curtain blade angle adopts step motor control, comprises motor steering and stepper motor steps, and number of motor steps is by input pulse numerical control system;

ZigBee driver node, completes communicating by letter of sensor unit and telegon unit;

Clock module, for system provides fiducial time, expects the inquiry of light intensity table and timing controlled for system.

Described actuator unit is also provided with infrared receiving module, coordinates with remote controller, completes setting parameter and information inquiry.

Described sensor unit comprises:

The heat that is arranged on indoor some illuminance sensors and some testing staff is released infrared sensor and is arranged on outdoor some illuminance sensors;

ZigBee sensor node, timing has nil case to be sent to ZigBee driver node and ZigBee coordinator node the illuminance of sensor collection and personnel.

A control method for sun blind intelligence control system,

Step 1, utilizes in Re Shi infrared sensor sensing chamber whether have people, if nobody actuator unit enter park mode; There is people as detected, proceed to step 2;

Step 2, judges that current is manual mode or automatic control state of a control; Manual mode in this way, proceeds to step 3, otherwise proceeds to step 4;

Step 3, system is in manual control model, and now automatic control mode is in illegal state, and user carries out the manual adjustments of curtain blade angle and curtain entirety aperture according to personal like; If heat is released infrared sensor and be can't detect personnel, actuator unit is proceeded to battery saving mode;

Step 4, system is in automatic control mode, now system provides some patterns to select in advance for user, and according to selected pattern, blade of louver window angle and integral elevating aperture are adjusted to set model, utilize subsequently the input that intensity of illumination average that indoor light intensity sensor obtains is fuzzy control, and carry out the further adjustment of blade of louver window angle and integral elevating aperture with this, output using this as fuzzy control, to meet the requirement of current environment, after this system detects timing indoor light intensity and carries out the adjustment of shutter;

If outdoor optical illuminance transducer detects that exterior light illumination is too high, for reducing the loss to eyesight, force blade of louver window upwards to overturn, sunlight reflected is arrived to indoor ceiling, blade flip angle is regulated according to indoor light intensity by driver, until meet the requirement of set model;

If receive manual control model signal under automatic control mode, force to proceed to step 3;

If heat is released infrared sensor and be can't detect personnel, actuator unit enters battery saving mode, and now curtain blade angle and lifting drives not output, and it is constant that curtain blade and overall aperture maintain current state.

In described step 3, system is also set up the sun irradiation angle table that curtain difference was set up towards, season and time, carry out the illuminance of user habit by setting-up time and add up, and the expectation illuminance to systemic presupposition pattern is revised with this, realizes self-learning capability.

In described step 4,

Can obtain outdoor intensity of illumination L by outdoor optical illuminance transducer, indoor each curtain control area is corresponding two illuminance transducers, read the value of two illuminance sensors, and get its average as indoor intensity of illumination Y;

System expects that light intensity R represents, being set in outdoor intensity of illumination of i moment is L _i, indoor average intensity of illumination is Y _i, system expects that intensity of illumination is R this moment _i, e _ifor the i moment is expected the error of illumination and indoor illumination, e _i=R _i-Y _i, e _i-1for the i-1 moment is expected the error of illumination and indoor illumination, Δ e _ifor the i moment is expected the error rate of illumination and indoor illumination, Δ e _i=e _i-e _i-1; O _ifor the output of curtain blade angle control, E _ifor curtain entirety aperture control output valve, L _maxforce the upwards outer intensity of illumination of eversion chamber of blade, L _minthe outdoor optical illumination that curtain blade control and curtain entirety aperture are switched;

Setting curtain initial angle is 0 degree, and control range is 0 to 180 degree, and curtain blade angle is 30 while spending, and curtain blade angle is output as O ₃₀, curtain blade angle is 80 while spending, curtain blade angle is output as O ₈₀, curtain blade angle is 100 while spending, curtain blade angle is output as O ₁₀₀;

First system judges outdoor intensity of illumination L _iwhether be greater than L _maxif, L _ibe greater than L _maxillustrate that outdoor illumination is very strong, for avoiding sunlight to injure eyes by floor reflection, force between blade angle control range degree of being set in 100 to 180 degree of curtain, now curtain blade is inclined upwardly, outdoor sunlight will expose to ceiling by blade, sunlight reflexes to indoor through ceiling, then according to now indoor illumination intensity adjustment adjusting curtain blade, design formulas is now

$O_i=K_p{e}_i+K_i\underset{i=0}{\overset{i}{\mathrm{\Σ}}}{e}_i+K_d(e_i-e_{i-1})+O_{100}$

E _i＝0

Work as L _min< L _i< L _maxnow curtain is controlled between 80 degree at 30 degree, if curtain blade regulates and can meet the demands between 30-80, has

$O_i=K_p{e}_i+K_i\underset{i=0}{\overset{i}{\mathrm{\&Sigma;}}}{e}_i+K_d(e_i-e_{i-1})+O_{30}$

E _i＝0

K above _p, K _i, K _dall to draw by the curtain blade angle fuzzy control table of foundation;

If also do not arrive current expectation light intensity while spending when curtain blade is adjusted to 80, or L _ivalue is less than L _mintime, keeping system curtain blade angle is 80 degree or forces blade to be output as 80 degree, regulates curtain entirety aperture to make current indoor light intensity reach expectation light intensity simultaneously, control is now

O _i＝O ₈₀

$E_i={\stackrel{\&OverBar;}{K}}_p{e}_i+{\stackrel{\&OverBar;}{K}}_i\underset{i=0}{\overset{i}{\mathrm{\&Sigma;}}}{e}_i+{\stackrel{\&OverBar;}{K}}_d(e_i-e_{i-1})$

Here

all to lift fuzzy control table by the curtain of foundation to draw.

It is as follows that described curtain blade angle fuzzy control table and curtain lift fuzzy control table design,

Input variable is error e _iwith error rate Δ e _iangle fuzzy control table output variable is Δ K _p, Δ K _i, Δ K _d, lifting fuzzy control table output variable is

membership function adopts the strong trigonometric function of sensitivity, input variable e _i, Δ e _idomain: [6 ,-5 ,-4 ,-3 ,-2 ,-1,0,1,2,3,4,5,6]

Output variable Δ K _p, Δ K _i, Δ K _ddomain: [3 ,-2.5 ,-2 ,-1.5 ,-1 ,-0.5,0,0.5,1,1.5,2,2.5,3]

Output variable

domain: [3 ,-2.5 ,-2 ,-1.5 ,-1 ,-0.5,0,0.5,1,1.5,2,2.5,3]

The fuzzy set of input and output be negative large, and negative in, negative little, zero, just little, center, honest },

Be designated as { NB, NM, NS, Z, PS, PM, PB}

Wherein Δ K _p, Δ K _i, Δ K _dwith

adopt identical control law, the last passing ratio factor obtains last result;

Curtain blade angle pid parameter,

$K_p=K_p^{*}+\mathrm{\&Delta;}{K_p}^{*}p$

$K_i=K_i^{*}+\mathrm{\&Delta;}{K_i}^{*}i$

$K_d=K_d^{*}+\mathrm{\&Delta;}{K_d}^{*}d$

Wherein for the initial value of curtain blade angle pid parameter, K _p, K _i, K _dthe parameter value of final PID;

Curtain promotes pid parameter,

${\stackrel{\&OverBar;}{K}}_p={{\stackrel{\&OverBar;}{K}}^{*}}_p+\mathrm{\&Delta;}{K_p}^{*}\stackrel{\&OverBar;}{p}$

${\stackrel{\&OverBar;}{K}}_i={{\stackrel{\&OverBar;}{K}}^{*}}_i+\mathrm{\&Delta;}{K_i}^{*}\stackrel{\&OverBar;}{i}$

${\stackrel{\&OverBar;}{K}}_d={{\stackrel{\&OverBar;}{K}}^{*}}_d+\mathrm{\&Delta;}{K_d}^{*}\stackrel{\&OverBar;}{d}$

Wherein

for the initial value of curtain lifting pid parameter.

it is the parameter value of final PID.

The sun irradiation angle table that described curtain difference was set up towards, season and time, according to setting the climatic information of year number and the table of users'comfort investigation, this table has been described in 1 year the monthly expectation light intensity comfort level value of every day of per season, in the time of system initialization, give tacit consent to and control according to the expectation intensity of illumination of default pattern, after system is brought into use, monthly user's setting custom is carried out to a statistical analysis, it is P that the user that initialization system monthly counts on average sets intensity of illumination _i, the expectation luminous intensity of system default is P, and system adopts the value of the first quarter to use as sampled value, and current illumination expects that light intensity setting value is

Q＝P*50%+P _i*30%+P _i-1*15%+P _i-2*5%

Q completion system is expected certainly adjusting of light intensity.

Wherein P _ithe user in current March in season on average sets intensity of illumination;

P _i-1the user in second month current season on average sets intensity of illumination;

P _i-2the user in first month current season on average sets intensity of illumination.

Beneficial effect of the present invention is:

Make full use of natural light, energy-efficient: curtain can be according to overall aperture and the blade angle of indoor intensity of illumination window with automatic regulation curtain.

Comfortableness is good: native system is avoided high light direct projection by the flip angle of controlling blade, the fine protection of energy people's eyes; And the adaptation illuminance scope of recording user, the expectation light intensity of automatic regulating system.

There is self-learning function, the more intelligent and hommization of system: like light intensity by recording user, complete and expect certainly adjusting of light intensity.

There is remote monitoring function, raise the management level: the present invention adopts 3G and ethernet technology, make user can complete by note and network the monitoring of curtain.

Use wireless communication technology, reduce installation and maintenance expense: the present invention adopts ZigBee and 3G wireless communication technology, and reliability is higher, and without carrying out numerous and diverse poling installation work.

The present invention not only can reduce energy consumption greatly, and reducing people is energy waste, and fine protection human eye, and can build more comfortable indoor environment, increases work efficiency, and automatization level is also greatly improved.Therefore, the present invention possesses good development prospect, will produce huge social value and economic worth.

Accompanying drawing explanation

Fig. 1 is network layer figure of the present invention.

Fig. 2 is system architecture diagram of the present invention.

Fig. 3 is system general flow chart.

Fig. 4 is system control general flow chart.

Fig. 5 is system layout figure.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment, the present invention will be further described.

In Fig. 1, the present invention constructs a kind of sun blind intelligence control system and control method, by sensor unit, actuator unit, telegon unit and remote control terminal.

In Fig. 2, telegon unit comprises processor module, ZigBee coordinator node, for the 3G module (also can adopt 4G module or gprs module or CDMA module etc.) of telecommunication, for man-machine interaction touch-screen, realize the LED light of communications status indication and the SD card memory module for data storage.Touch-screen facilitates user to carry out setting parameter and nodal information inquiry; SD card memory module real-time lighting information, personal information, user to set information and system communication status information, for systematic control algorithm improvement and upgrading, system maintenance provide foundation, in the time that being write SD card by system, data in the lump the clock information packing of system is sent to SD card memory module; 3G module can receive the instruction that in specified scope, phone number sends, and also can receive the order of the remote node of assigned ip address and fixing domain name, facilitates user to carry out remote monitoring.ZigBee coordinator node, for the foundation of all ZigBee-networks, is responsible for ZigBee node address assignment and management in network, and receiving sensor cell data, sends user and sets instruction;

Actuator unit comprises realizes driving processing module, ZigBee driver node, shutter driver module, infrared receiving module and the clock module that shutter is controlled automatically.Drive processing module for curtain control, the PID fuzzy control rule table that its storage inside is set up based on actual commissioning experience and the sun angle table of setting up towards, season and time according to curtain difference; ZigBee driver node, photometric data and personnel for the collection of receiving sensor unit have or not information and set instruction and send driving processing module to by serial communication from the user of telegon unit, and field control status information is transferred to telegon unit by ZigBee-network; Shutter driver module, the control of curtain entirety aperture and curtain blade angle.Wherein curtain entirety aperture adopts DC MOTOR CONTROL, comprises that direct current generator turns to control and rotating speed control.Its medium speed is completed by PWM copped wave; Curtain blade angle adopts step motor control, comprises motor steering and stepper motor steps.Number of motor steps is by input pulse numerical control system.

Infrared receiving module, remote controller coordinates, and completes setting parameter and information inquiry;

Clock module, for system provides fiducial time, for tabling look-up and timing controlled.

The control flow of curtain, is first to curtain blade angular adjustment, if curtain blade regulates the light intensity requirement that can not meet the expectation to carry out curtain entirety regulation.In the time that system starts, system is in manual control model, and now automatic control mode is in illegal state, and user now can carry out the manual adjustments of curtain blade angle and curtain entirety aperture.When system is by manual control mode switch during to automatic control mode, user can carry out scene (meeting, study, bedroom etc.) and set, and can the expectation light intensity of set scene be finely tuned and be met consumers' demand.When outdoor optical is when strong, for prevent sunlight by floor reflection to human eye, force blade upwards to overturn and make Yanguan Pass expose to ceiling, by the indoor intensity of illumination of ceiling Reflective regulation.System has self-learning function recording user hobby light intensity, and certainly adjusting with this complete expectation light intensity basic value.

Sensor unit comprises that ZigBee sensor node and multiple indoor light intensity sensor and outdoor optical illuminance transducer and heat release infrared sensor.ZigBee sensor node, timing has nil case to be sent to ZigBee driver node and ZigBee coordinator node the illuminance of sensor collection and personnel;

Remote control terminal, comprises computer and mobile phone, by mode and the telegon unit communication of Ethernet and note.

Telegon unit adopts the Alternating Current Power Supply of 220V/50Hz, adopts integrated voltage reduction module to realize voltage transformation.Actuator unit also adopts the Alternating Current Power Supply of 220V/50Hz, adopts transformer pressure-reducing to be used for curtain to 24V, and all the other voltages adopt integrated voltage reduction module to complete.Sensor unit adopts two joint dry cells to power.

Fig. 3 is system general flow chart of the present invention.The workflow of system: ZigBee-network is set up in telegon unit, sensor unit and actuator unit add network, and 3G module and long-range whole control end connect simultaneously.Sensor unit timing has or not information to be sent to actuator unit the photometric data of collection and indoor occupant, drives processing module to control according to sensor information, makes indoor intensity of illumination remain on a constant value.Drive processing module can receive the user to set information from IR remote controller and the transmission of telegon unit.Actuator unit is sent to ZigBee coordinator node for user's inquiry by controlling on-the-spot data simultaneously.The allotment of finishing the work of mediators handle module inline operations system, realize the demonstration of data by touch-screen, and system data is write SD card memory module by timing, by 3G module, on-the-spot data are sent to remote node, receive setting and Query Information from remote terminal, and reply according to instruction.

The concrete engineering of control algolithm is as follows,

Release infrared sensor according to Fig. 4 system control general flow chart timing detection heat and whether have signal output, if do not have signal to represent indoor nobody, enter battery saving mode, now curtain blade angle and lifting drives not output, and it is constant that curtain blade and overall aperture maintain current state.

Release when infrared sensor has signal output and represent the indoor people of having when heat, actuator unit recovers normal mode of operation from battery saving mode, and now curtain blade angle and overall aperture start to regulate and export according to historical setting of user.First check the state of a control of system, if in manual mode system enter manual control model, wait for and receive the control information that user sends, increase instruction if receive curtain blade angle, processor window output blade angle increases signal to curtain blade driver; Reduce instruction if receive curtain blade angle, processor output blade angle reduces signal to curtain blade driver; If receive curtain climb command, processor output rising signals to curtain promotes driver; If receive curtain decline instruction, processor output dropping signal to curtain promotes driver; If receive halt instruction, processor output stop signal to curtain blade driver and curtain lifting driver stops output, continues to wait for that user sends instruction.

If system is in auto state, can find out system layout figure from Fig. 5, can obtain outdoor intensity of illumination L by outdoor optical illuminance transducer, indoor each curtain control area is corresponding two illuminance transducers are the data indoor intensities of illumination of actual response more for allowing sensor return.Read the value of two illuminance sensors, and get its average as indoor intensity of illumination Y.System expects that light intensity R represents.Being set in outdoor intensity of illumination of i moment is L _i, indoor average intensity of illumination is Y _i, system expects that intensity of illumination is R this moment _i, e _ifor the i moment is expected the error of illumination and indoor illumination.E _i=R _i-Y _i, Δ e _ifor the i moment is expected the error rate of illumination and indoor illumination, Δ e _i=e _i-e _i-1.O _ifor the output of curtain blade angle control, E _ifor curtain entirety aperture control output valve, L _maxforce the upwards outer intensity of illumination of eversion chamber of blade, L _minthe outdoor optical illumination that curtain blade control and curtain entirety aperture are switched.

Setting curtain initial angle is 0 degree, and control range is 0 to 180 degree, and curtain blade angle is 30 while spending, and curtain blade angle is output as O ₃₀, curtain blade angle is 80 while spending, curtain blade angle is output as O ₈₀, curtain blade angle is 100 while spending, curtain blade angle is output as O ₁₀₀.

First system judges outdoor intensity of illumination L _iwhether be greater than L _maxif, L _ibe greater than L _maxillustrate that outdoor illumination is very strong, for avoiding sunlight to injure eyes by floor reflection, force between blade angle control range degree of being set in 100 to 180 degree of curtain, now curtain blade is inclined upwardly, outdoor sunlight will expose to ceiling by blade, sunlight reflexes to indoor through ceiling, then according to now indoor illumination intensity adjustment adjusting curtain blade.Can well protect like this human eye, improve comfort level.Design formulas is now

$O_i=K_p{e}_i+K_i\underset{i=0}{\overset{i}{\mathrm{\&Sigma;}}}{e}_i+K_d(e_i-e_{i-1})+O_{100}$

E _i＝0

Work as L _min< L _i< L _maxnow curtain is controlled between 80 degree at 30 degree, if curtain blade regulates and can meet the demands between 30-80, has

$O_i=K_p{e}_i+K_i\underset{i=0}{\overset{i}{\mathrm{\&Sigma;}}}{e}_i+K_d(e_i-e_{i-1})+O_{30}$

E _i＝0

K above _p, K _i, K _dall to draw by the curtain blade angle fuzzy control table of foundation.

If also do not arrive current expectation light intensity while spending when curtain blade is adjusted to 80, or L _ivalue is less than L _mintime, keeping system curtain blade angle is 80 degree or forces blade to be output as 80 degree, regulates curtain entirety aperture to make current indoor light intensity reach expectation light intensity simultaneously.Control is now

O _i＝O ₈₀

$E_i={\stackrel{\&OverBar;}{K}}_p{e}_i+{\stackrel{\&OverBar;}{K}}_i\underset{i=0}{\overset{i}{\mathrm{\&Sigma;}}}{e}_i+{\stackrel{\&OverBar;}{K}}_d(e_i-e_{i-1})$

Here

all to lift fuzzy control table by the curtain of foundation to draw

It is as follows that above-mentioned curtain blade angle fuzzy control table and curtain lift fuzzy control table design,

Input variable is error e _iwith error rate Δ e _iangle fuzzy control table output variable is Δ K _p, Δ K _i, Δ K _d, lifting fuzzy control table output variable is

membership function adopts sensitivity strong trigonometric function, and the region larger in error adopts lower resolution ratio, and the region less in error adopts higher resolution ratio, in error close to adopting high-resolution at 1 o'clock.

Input variable e _i, Δ e _idomain: [6 ,-5 ,-4 ,-3 ,-2 ,-1,0,1,2,3,4,5,6]

Output variable Δ K _p, Δ K _i, Δ K _ddomain: [3 ,-2.5 ,-2 ,-1.5 ,-1 ,-0.5,0,0.5,1,1.5,2,2.5,3]

Output variable

domain: [3 ,-2.5 ,-2 ,-1.5 ,-1 ,-0.5,0,0.5,1,1.5,2,2.5,3]

The fuzzy set of input and output be negative large, and negative in, negative little, zero, just little, center, honest },

Be designated as { NB, NM, NS, Z, PS, PM, PB}

Wherein Δ K _p, Δ K _i, Δ K _dwith after result.

Δ K _pcontrol law is:

Δ K _icontrol law is:

Δ K _dcontrol law is:

Curtain blade angle pid parameter,

$K_p=K_p^{*}+\mathrm{\&Delta;}{K_p}^{*}p$

$K_i=K_i^{*}+\mathrm{\&Delta;}{K_i}^{*}i$

$K_d=K_d^{*}+\mathrm{\&Delta;}{K_d}^{*}d$

Wherein

for the initial value of curtain blade angle pid parameter.K _p, K _i, K _dthe parameter value of final PID.

Curtain promotes pid parameter,

${\stackrel{\&OverBar;}{K}}_p={{\stackrel{\&OverBar;}{K}}^{*}}_p+\mathrm{\&Delta;}{K_p}^{*}\stackrel{\&OverBar;}{p}$

${\stackrel{\&OverBar;}{K}}_i={{\stackrel{\&OverBar;}{K}}^{*}}_i+\mathrm{\&Delta;}{K_i}^{*}\stackrel{\&OverBar;}{i}$

${\stackrel{\&OverBar;}{K}}_d={{\stackrel{\&OverBar;}{K}}^{*}}_d+\mathrm{\&Delta;}{K_d}^{*}\stackrel{\&OverBar;}{d}$

Wherein

for the initial value of curtain lifting pid parameter.

it is the parameter value of final PID.

Meanwhile, system made the different sun irradiation angle tables of setting up towards, season and time of curtain according to recent years climatic information and users'comfort investigation, this table has been described in 1 year the monthly expectation light intensity comfort level value of every day of per season.In the time of system initialization, give tacit consent to and control according to the expectation intensity of illumination of default table, after system is brought into use, monthly user's setting custom is carried out to a statistical analysis, it is P that the user that initialization system monthly counts on average sets intensity of illumination _ithe expectation luminous intensity of system default is P.System adopts the value of the first quarter to use as sampled value.Current illumination expects that light intensity setting value is

Q＝P*50%+P _i*30%+P _i-1*15%+P _i-2*5%

With certainly adjusting of Q completion system expectation light intensity.

The present invention is without numerous and diverse wiring operations, easy for installation; Can receive the set information from IR remote controller, touch-screen and remote node, easy to operate; Can be according to indoor and outdoor photoenvironment and user's request automatic adjusting louver window aperture and blade angle, easy to use.System has very strong transplantability and autgmentability, has solved the problem of shutter Based Intelligent Control, can effectively save electric energy, improves system intelligent and amenity.

Claims (10)

1. a sun blind intelligence control system, is characterized in that, it comprises:

Actuator unit, adopts fuzzy control mode regulation shutter blade angle and overall aperture;

Sensor unit, gathers indoor and outdoors illuminance and indoor occupant and has or not information, and send into telegon unit and actuator unit;

Telegon unit, carry out wired and/or radio communication with remote control terminal, with between actuator unit and sensor unit, set up ZigBee-network and communicate by letter, the instruction that the illuminance that receiving sensor unit sends and indoor occupant have or not information and user to send, and the state of sensing data and field control is delivered to remote terminal;

Long-distance Control; Terminal, comprises mobile phone and various computer, adopts Ethernet and wireless transmission method and telegon unit communication, the inquiry of the setting of completion system parameter and user, environmental information.

2. sun blind intelligence control system as claimed in claim 1, is characterized in that, described telegon unit comprises:

Processor module, has been responsible for the conversion of agreement and has coordinated other module operation of this unit;

3G module, realizes communicating by letter of telegon unit and remote control terminal;

Human-computer interaction module, completes setting parameter and information inquiry;

Communication state indicating module, for showing Ethernet and ZigBee communication state;

Memory module, for storing intensity of illumination, personnel have or not information and communication state data;

ZigBee coordinator node, realizes ZigBee communication network and sets up.

3. sun blind intelligence control system as claimed in claim 1, is characterized in that, described actuator unit comprises:

Drive processes module, the PID fuzzy control rule table that its storage inside is set up based on actual commissioning experience and the sun irradiation angle table of setting up towards, season and time according to curtain difference, and draw expectation intensity of illumination now according to this;

Shutter driver module, the control of curtain entirety aperture and curtain blade angle; Wherein curtain entirety aperture adopts DC MOTOR CONTROL, comprises that direct current generator turns to control and rotating speed control, and rotating speed is completed by PWM copped wave; Curtain blade angle adopts step motor control, comprises motor steering and stepper motor steps, and number of motor steps is by input pulse numerical control system;

ZigBee driver node, completes communicating by letter of sensor unit and telegon unit;

Clock module, for system provides fiducial time, for tabling look-up and timing controlled.

4. sun blind intelligence control system as claimed in claim 3, is characterized in that, described actuator unit is also provided with infrared receiving module, coordinates with remote controller, completes setting parameter and information inquiry.

5. sun blind intelligence control system as claimed in claim 1, is characterized in that, described sensor unit comprises:

The heat that is arranged on indoor some illuminance sensors and some testing staff is released infrared sensor and is arranged on outdoor some illuminance sensors;

ZigBee sensor node, timing has nil case to be sent to ZigBee driver node and ZigBee coordinator node the illuminance of sensor collection and personnel.

6. a control method for sun blind intelligence control system claimed in claim 1, is characterized in that,

Step 1, utilizes in Re Shi infrared sensor sensing chamber whether have people, if nobody actuator unit enter battery saving mode; There is people as detected, proceed to step 2;

Step 2, judges that current is manual mode or automatic control state of a control; Manual mode in this way, proceeds to step 3, otherwise proceeds to step 4;

Step 3, system is in manual control model, and now automatic control mode is in illegal state, and user carries out the manual adjustments of curtain blade angle and curtain entirety aperture according to personal like; If heat is released infrared sensor and be can't detect personnel, actuator unit is proceeded to battery saving mode;

Step 4, system is in automatic control mode, now system provides some patterns to select in advance for user, and according to selected pattern, blade of louver window angle and integral elevating aperture are adjusted to set model, utilize subsequently the input that intensity of illumination average that indoor light intensity sensor obtains is fuzzy control, and carry out the further adjustment of blade of louver window angle and integral elevating aperture with this, output using this as fuzzy control, to meet the requirement of current environment, after this system detects timing indoor light intensity and carries out the adjustment of shutter;

If outdoor optical illuminance transducer detects that exterior light illumination is too high, for reducing the loss to eyesight, force blade of louver window upwards to overturn, sunlight reflected is arrived to indoor ceiling, blade flip angle is regulated according to indoor light intensity by driver, until meet the requirement of set model;

If receive manual control model signal under automatic control mode, force to proceed to step 3;

If heat is released infrared sensor and be can't detect personnel, actuator unit enters battery saving mode, and now curtain blade angle and lifting drives not output, and it is constant that curtain blade and overall aperture maintain current state.

7. the control method of sun blind intelligence control system as claimed in claim 6, it is characterized in that, in described step 3, system is also set up the sun irradiation angle table that curtain difference was set up towards, season and time, carry out the illuminance of user habit adds up by setting-up time, and with this, the expectation illuminance to systemic presupposition pattern is revised, and realizes self-learning capability.

8. the control method of sun blind intelligence control system as claimed in claim 6, is characterized in that, in described step 3,

Can obtain outdoor intensity of illumination L by outdoor optical illuminance transducer, indoor each curtain control area is corresponding two illuminance transducers, read the value of two illuminance sensors, and get its average as indoor intensity of illumination Y;

System expects that light intensity R represents, being set in outdoor intensity of illumination of i moment is L _i, indoor average intensity of illumination is Y _i, system expects that intensity of illumination is R this moment _i, e _ifor the i moment is expected the error of illumination and indoor illumination, e _i=R _i-Y _i, e _i-1for the i-1 moment is expected the error of illumination and indoor illumination, Δ e _ifor the i moment is expected the error rate of illumination and indoor illumination, Δ e _i=e _i-e _i-1, O _ifor the output of curtain blade angle control, E _ifor curtain entirety aperture control output valve, L _maxforce the upwards outer intensity of illumination of eversion chamber of blade, L _minthe outdoor optical illumination that curtain blade control and curtain entirety aperture are switched;

Setting curtain initial angle is 0 degree, and control range is 0 to 180 degree, and curtain blade angle is 30 while spending, and curtain blade angle is output as O ₃₀, curtain blade angle is 80 while spending, curtain blade angle is output as O ₈₀, curtain blade angle is 100 while spending, curtain blade angle is output as O ₁₀₀;

First system judges outdoor intensity of illumination L _iwhether be greater than L _maxif, L _ibe greater than L _maxillustrate that outdoor illumination is very strong, for avoiding sunlight to injure eyes by floor reflection, force between blade angle control range degree of being set in 100 to 180 degree of curtain, now curtain blade is inclined upwardly, outdoor sunlight will expose to ceiling by blade, sunlight reflexes to indoor through ceiling, then according to now indoor illumination intensity adjustment adjusting curtain blade, design formulas is now

$O_i=K_p{e}_i+K_i\underset{i=0}{\overset{i}{\mathrm{\&Sigma;}}}{e}_i+K_d(e_i-e_{i-1})+O_{100}$

E _i＝0

Work as L _min< L _i< L _maxnow curtain is controlled between 80 degree at 30 degree, if curtain blade regulates and can meet the demands between 30-80, has

$O_i=K_p{e}_i+K_i\underset{i=0}{\overset{i}{\mathrm{\&Sigma;}}}{e}_i+K_d(e_i-e_{i-1})+O_{30}$

E _i＝0

K above _p, K _i, K _dall to carry out dynamic tuning by the curtain blade angle fuzzy control table of foundation to draw;

If also do not arrive current expectation light intensity while spending when curtain blade is adjusted to 80, or L _ivalue is less than L _mintime, keeping system curtain blade angle is 80 degree or forces blade to be output as 80 degree, regulates curtain entirety aperture to make current indoor light intensity reach expectation light intensity simultaneously, control is now

O _i＝O ₈₀

$E_i={\stackrel{\&OverBar;}{K}}_p{e}_i+{\stackrel{\&OverBar;}{K}}_i\underset{i=0}{\overset{i}{\mathrm{\&Sigma;}}}{e}_i+{\stackrel{\&OverBar;}{K}}_d(e_i-e_{i-1})$

Here

all that curtain by setting up lifts fuzzy control table and carries out dynamic tuning and draw.

9. the control method of sun blind intelligence control system as claimed in claim 8, is characterized in that, it is as follows that described curtain blade angle fuzzy control table and curtain lift fuzzy control table design,

Input variable is error e _iwith error rate Δ e _iangle fuzzy control table output variable is Δ K _p, Δ K _i, Δ K _d, lifting fuzzy control table output variable is

membership function adopts the strong trigonometric function of sensitivity, input variable e _i, Δ e _idomain: [6 ,-5 ,-4 ,-3 ,-2 ,-1,0,1,2,3,4,5,6]

Output variable Δ K _p, Δ K _i, Δ K _ddomain: [3 ,-2.5 ,-2 ,-1.5 ,-1 ,-0.5,0,0.5,1,1.5,2,2.5,3]

Output variable

domain: [3 ,-2.5 ,-2 ,-1.5 ,-1 ,-0.5,0,0.5,1,1.5,2,2.5,3]

The fuzzy set of input and output be negative large, and negative in, negative little, zero, just little, center, honest },

Be designated as { NB, NM, NS, Z, PS, PM, PB}

Wherein Δ K _p, Δ K _i, Δ K _dwith

adopt identical control law, the last passing ratio factor obtains last result;

Curtain blade angle pid parameter,

$K_p=K_p^{*}+\mathrm{\&Delta;}{K_p}^{*}p$

$K_i=K_i^{*}+\mathrm{\&Delta;}{K_i}^{*}i$

$K_d=K_d^{*}+\mathrm{\&Delta;}{K_d}^{*}d$

Wherein

for the initial value of curtain blade angle pid parameter, K _p, K _i, K _dthe parameter value of final PID;

Curtain promotes pid parameter,

${\stackrel{\&OverBar;}{K}}_p={{\stackrel{\&OverBar;}{K}}^{*}}_p+\mathrm{\&Delta;}{K_p}^{*}\stackrel{\&OverBar;}{p}$

${\stackrel{\&OverBar;}{K}}_i={{\stackrel{\&OverBar;}{K}}^{*}}_i+\mathrm{\&Delta;}{K_i}^{*}\stackrel{\&OverBar;}{i}$

${\stackrel{\&OverBar;}{K}}_d={{\stackrel{\&OverBar;}{K}}^{*}}_d+\mathrm{\&Delta;}{K_d}^{*}\stackrel{\&OverBar;}{d}$

Wherein

for the initial value of curtain lifting pid parameter. it is the parameter value of final PID.

10. the control method of sun blind intelligence control system as claimed in claim 7, it is characterized in that, described curtain difference towards, the sun irradiation angle table that season and time set up, according to setting the climatic information of year number and the table of users'comfort investigation, this table has been described in 1 year the monthly expectation light intensity comfort level value of every day of per season, in the time of system initialization, give tacit consent to and control according to the expectation intensity of illumination of default pattern, after system is brought into use, monthly user's setting custom is carried out to a statistical analysis, it is P that the user that initialization system monthly counts on average sets intensity of illumination _i, the expectation luminous intensity of system default is P, and system adopts the value of the first quarter to use as sampled value, and current illumination expects that light intensity setting value is

Q＝P*50%+P _i*30%+P _i-1*15%+P _i-2*5%

Wherein P _ithe user in current March in season on average sets intensity of illumination;

P _i-1the user in second month current season on average sets intensity of illumination;

P _i-2the user in first month current season on average sets intensity of illumination.

With certainly adjusting of Q completion system expectation light intensity.

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