CN107734791A - LED light group control method, device, LED advisement lamp case and control system - Google Patents
LED light group control method, device, LED advisement lamp case and control system Download PDFInfo
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
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Abstract
The invention discloses a kind of LED light group control method, this method comprises the following steps：Receive the current environment light intensity value that light sensor is sent；Current environment light intensity setting value is read from second controller；Current environment light intensity setting value is what second controller was read from touch-screen；When judging that current environment light intensity value and the difference of current environment light intensity setting value are more than predetermined threshold value, the output duty cycle that driving power is adjusted using PWM modulation technology is controlled to the light intensity of LED light group.The technical scheme provided using the embodiment of the present invention, can be according to current environment light intensity value, and the output duty cycle that driving power is adjusted using PWM modulation technology is controlled to the light intensity of LED light group.Reduce the waste of electric power resource, improve the comfort level that people watch lamp box.The invention also discloses a kind of LED light group control device, LED advisement lamp case and control system, has relevant art effect.
Description
Technical field
The present invention relates to technical field of LED illumination, more particularly to a kind of LED light group control method, device, LED advertisements
Lamp box and control system.
Background technology
With the development of LED illumination technology and the deep implementation of China's energy-saving and emission-reduction policy, LED has height as one kind
Effect, energy-conservation, safe, durable, low-carbon environment-friendly 21 century new light sources, by its unique advantage, LED illumination is in the public field in city
It is resulting to be widely applied.Wherein, there is the LED advisement lamp case of broadcasting media characteristic because it makes us pleasing advertisement
Content can beautify the environment, and intersperse urban landscape well, have good broadcasting media characteristic, therefore obtain widely should
With becoming the beautiful scenery in one of city.
But there are some unsatisfactory places in LED advisement lamp case of the prior art in control aspect.It is existing
LED advisement lamp case is typically that overall circuit is simply controlled by the way of loop powers off.This control mode is present
The shortcomings that certain, the light intensity of LED light group is certain, when daylight environment light is stronger, does not need the light of LED light group in fact
Very strong by force, people's can is clearly visible that advertising media wants the ad content of publicity, and photosensitive comfortable of eyeball of people
Degree can change with the change of the light intensity of luminous object, therefore cause the waste and people's viewing of unnecessary electric power resource
Lamp box it is uncomfortable.
The content of the invention
In order to solve the above technical problems, the present invention provides following technical scheme：
A kind of LED light group control method, methods described include：
First controller receives the current environment light intensity value that light sensor is sent；
Current environment light intensity setting value is read from second controller；Wherein, the current environment light intensity setting value is institute
State what second controller was read from touch-screen；
Judge whether the current environment light intensity value and the difference of the current environment light intensity setting value are more than predetermined threshold value；
If it is, the output duty cycle that driving power is adjusted using PWM modulation technology is controlled to the light intensity of LED light group
System.
In a kind of embodiment of the present invention, in addition to：
Receive the electrical parameter for the LED light group that data acquisition unit is sent；
The electrical parameter is analyzed, obtains analysis result；
The analysis result is sent to host computer by the second controller；
Receive the place that the analysis result that the administrative staff that the touch-screen is sent show according to the host computer selects
Reason instruction；
According to the process instruction, judge whether to start standby LED light group.
A kind of LED light group control device, described device include：
Ambient light intensity values receiving module, for receiving the current environment light intensity value of light sensor transmission；
Setting value read module, read for reading the second controller from the second controller from touch-screen
Current environment light intensity setting value；
LED light group intensity control module, for judging that the current environment light intensity value is set with the current environment light intensity
Whether the difference of value is more than predetermined threshold value, if it is, adjusting the output duty cycle pair of driving power using PWM modulation technology
The light intensity of LED light group is controlled.
A kind of LED advisement lamp case, including：
First power supply, the first controller, the driving power being connected respectively with first controller and light sensor, with
The connected LED light group of the driving power；
The light sensor, gather current environment light intensity value；The current environment light intensity value is sent to described first
Controller；
First controller, receive the current environment light intensity value；Institute is read from the second controller of master control cabinet
State the current environment setting value that second controller is read from touch-screen；Judge the current environment light intensity value with it is described current
Whether the difference of environment setting is more than predetermined threshold value, if it is, adjusting the defeated of the driving power using PWM modulation technology
Go out dutycycle to be controlled the light intensity of the LED light group；
First power supply, electric energy is provided for LED advisement lamp case.
In a kind of embodiment of the present invention, in addition to data acquisition unit and LED stand-by lamp groups；
The data acquisition unit, gather the electrical parameter of the LED light group；The electrical parameter is sent to described first
Controller；
First controller, it is additionally operable to receive the electrical parameter；The electrical parameter is analyzed, analyzed
As a result；The analysis result is sent to host computer by the second controller；Receive the custodian that the touch-screen is sent
The process instruction that the analysis result that member shows according to the host computer selects；According to the process instruction, judge whether to open
Move the standby LED light group.
In a kind of embodiment of the present invention, in addition to：
The first communication component being connected with first controller, for first controller and the second controller
Between communication.
In a kind of embodiment of the present invention, first communication component is ZigBee wireless digital transmission communication groups
Part.
A kind of LED advisement lamp case control system, the system include：
Foregoing LED advisement lamp case, the master control cabinet being connected with the LED advisement lamp case and the master control cabinet
Connected touch-screen；The master control cabinet includes second controller and second source；
The touch-screen, current environment light intensity setting value is preset on the touch-screen for administrative staff；
The second controller, read the current environment light intensity setting value in the touch-screen；
The second source, power supply is provided for the master control cabinet.
In a kind of embodiment of the present invention, in addition to the host computer being connected with the master control cabinet；
The host computer, receive and show first controller by the second controller send to LED light group
Electrical parameter analyzed after the analysis result that obtains；
The touch-screen, it is additionally operable to the administrative staff and process instruction is selected according to the analysis result；By the processing
Instruction is sent to corresponding first controller by the second controller.
In a kind of embodiment of the present invention, the master control cabinet also includes：
The second communication component being connected with the second controller, for the second controller and the described first control
Device, the host computer and the touch-screen are communicated.
The technical scheme provided using the embodiment of the present invention, what the first controller reception light sensor was sent works as front ring
Border light intensity value, current environment light intensity setting value is read from second controller, judges current environment light intensity value and current environment light
Whether the difference of strong setting value is more than predetermined threshold value, if it is, adjusting the output duty of driving power using PWM modulation technology
The light intensity for comparing LED light group is controlled.The current environment light intensity value of light sensor transmission is received by the first controller,
When judging that current environment light intensity value and the difference of current environment light intensity setting value are more than predetermined threshold value, adjusted using PWM modulation technology
The output duty cycle of section driving power is controlled to the light intensity of LED light group.Can be according to current environment light intensity to LED light group
Light intensity is controlled, and reduces the waste of electric power resource, improves the comfort level that people watch lamp box.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of implementing procedure figure of LED light group control method in the embodiment of the present invention；
Fig. 2 is the relation between a kind of output duty cycle of driving power and the light intensity of LED light group in the embodiment of the present invention
Coordinate diagram；
Fig. 3 is a kind of structural representation of LED light group control device in the embodiment of the present invention；
Fig. 4 is a kind of structural representation of LED advisement lamp case in the embodiment of the present invention；
Fig. 5 is a kind of structural representation of LED advisement lamp case control system in the embodiment of the present invention.
Embodiment
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiment is only part of the embodiment of the present invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
It is a kind of implementing procedure figure of LED light group control method in the embodiment of the present invention referring to Fig. 1, this method can wrap
Include following steps：
S101：First controller receives the current environment light intensity value that light sensor is sent.
Light sensor can be installed in the external environment residing for LED light group, light sensor is gathered residing for LED light group
External environment current environment light intensity value, and the current environment light intensity value of the external environment collected is sent to the first control
Device, the first controller receive current environment light intensity value.
Photo resistance in light sensor can sense the light and shade change of light, export faint electric signal, pass through letter
Single electron circuit enhanced processing, the electric signal of standard can be converted optical signals to, such as generally 4~20mA/1~5VDC.
First controller is the core control portions of LED light group, is grouped by hardware circuit part and software-driven control unit
Into being specifically as follows the microprocessor controller of 32, the embodiment of the present invention is without limitation, specifically can be according to actual feelings
Condition is selected.
The first power supply can also be disposed, providing power supply for each several part supports, the first power supply can provide 0~250V direct current
Electricity, the present invention is without limitation, can be specifically adjusted according to actual conditions.
S102：Current environment light intensity setting value is read from second controller.
Current environment light intensity setting value is what second controller was read from touch-screen.
Due to various uncertain disturbing factors in environment be present, can be set in not according to continuous pilot scale study repeatedly
With the environmental light intensity setting value of different time sections in the next day of situation, for example, rainy days ambient light may be weaker, can
To set the environmental light intensity setting value of different time sections in one day rainy days, and sunny weather environment light may
Can be stronger, the environmental light intensity setting value of fine day different time sections in one day can be set.Administrative staff can monitor
Corresponding different time sections are preset by touch-screen disturbing factor according to present in environment on the touch-screen HMI at center
Environmental light intensity setting value.
The center position nearer apart from each LED light group can be provided with master control cabinet, and second is deployed with master control cabinet
Controller, second controller read the environmental light intensity setting value for the different time sections that administrative staff are set by touch-screen.First
Controller reads the environmental light intensity setting value of the different time sections in second controller.
S103：Judge whether current environment light intensity value and the difference of current environment light intensity setting value are more than predetermined threshold value, such as
Fruit is then to perform step S104.
The threshold value of the difference of synchronization ambient light intensity values and environmental light intensity setting value can be set in advance in, when the first control
When device processed receives the current environment light intensity value of light sensor transmission, it can be determined that current environment light intensity value and current environment light
Whether the difference of strong setting value is more than predetermined threshold value, if it is, the light intensity and current environment light intensity of explanation LED light group are not
Match somebody with somebody, step S104 can be continued executing with, if it is not, then the light intensity of explanation LED light group matches with current environment light intensity value, do not appoint
What is adjusted.
S104：The light intensity of LED light group is controlled using the output duty cycle of PWM modulation technology regulation driving power.
As shown in Fig. 2 when judging that current environment light intensity value and the difference of current environment light intensity setting value are more than preset value,
The output duty cycle D of PWM modulation technology regulation driving power can be utilized to be controlled the light intensity I of LED light group.Driving power
Cycle be T, tonIt is high in the four of the driving power cycle in fig. 2 for the duration of driving power high level in one cycle
The percentage that level time accounts for whole cycle is respectively 55%, 40%, 30% and 15%.toffIt is driving power in a cycle
In low level duration.ImaxFor the light intensity maximum of LED light group set in advance.
LED light group can be made up of multiple low power LED of encapsulated moulding, and be integrated into a circuit board, driven
The direct control of dynamic power supply.
Relay protection circuit can be connected between the output circuit and LED light group of driving power, is moved for eliminating contact
Issuable electric arc when making, so as to protect the stability that the output circuit of the driving power works, extend its service life.
It is more than current environment light intensity setting value and big with the difference of current environment light intensity setting value in current environment light intensity value
When predetermined threshold value, the output duty cycle of the driving power of LED light group is turned down into default amount using PWM modulation technology, so as to
Driving power reduces to the frequency and size of the supply current of LED light group, and the light intensity of LED light group reduces.Adjusted using pwm pulse
Technology processed so that the maintenance and management of LED light group develops towards more intelligentized direction.
And the default threshold for the difference for judging synchronization ambient light intensity values and environmental light intensity setting value can be preset
The time interval of value and actual difference, when reaching default time interval, actual ambient light intensity values can update, and be updated
Ambient light intensity values afterwards, environmental light intensity setting value can also update, environmental light intensity setting value after being updated, it can be determined that ring after renewal
Whether border light intensity value is more than environmental light intensity setting value after renewal and is more than default threshold with the difference of environmental light intensity setting value after renewal
Value, if it is, the output duty cycle of the driving power of LED light group is turned down into default amount again using PWM modulation technology, if
By repeatedly to renewal after ambient light intensity values and renewal after environmental light intensity setting value be compared, ambient light intensity values are big after renewal
Environmental light intensity setting value and it is more than predetermined threshold value with the difference of environmental light intensity setting value after renewal after renewal, then in this feelings
Under condition, default amount repeatedly will be turned down to the dutycycle of the driving power of LED light group, to reach to the accurate light modulation of LED light group
Effect.The light intensity minimum value I of LED light group can be presetmin, when the light intensity of LED light group reaches default light intensity minimum value
When, though again update after ambient light intensity values be more than renewal after environmental light intensity setting value and with environmental light intensity setting value after renewal
Difference is more than predetermined threshold value, and also no longer the output duty cycle of the driving power of LED light group is turned down.
When ambient light intensity values be less than system current environment light intensity setting value and with the difference of current environment light intensity setting value
During more than predetermined threshold value, the output duty cycle of the driving power of LED light group is heightened into default amount using PWM modulation technology, from
And driving power increases the frequency and size of the supply current of LED, the light intensity increase of LED light group.
When reaching default time interval, whether ambient light intensity values are less than environmental light intensity setting after renewal after judging renewal
It is worth and is more than predetermined threshold value with the difference of environmental light intensity setting value after renewal, if it is, using PWM modulation technology again by LED
The output duty cycle of the driving power of lamp group heightens default amount, if by repeatedly to renewal after ambient light intensity values and renewal after
Environmental light intensity setting value is compared, after renewal ambient light intensity values be respectively less than update after environmental light intensity setting value and with ring after renewal
The difference of border light intensity setting value is more than predetermined threshold value, then in this case, by repeatedly accounting for the driving power of LED light group
Sky can preset the light intensity maximum I of LED light group than heightening default amountmax, when the light intensity of LED light group reaches default
During light intensity maximum, though again update after ambient light intensity values be less than renewal after environmental light intensity setting value and with ambient light after renewal
The difference of strong setting value is more than predetermined threshold value, and also no longer the output duty cycle of the driving power of LED light group is heightened, to protect
Demonstrate,prove the service life of LED light group.
It should be noted that LED light group light intensity maximum can be set and be adjusted according to actual conditions, the present invention is real
Apply example not limit this, 0.9 times of the largest light intensity that LED light group can reach such as is could be arranged to, to ensure LED light group
Service life.
It should be noted that time interval can be set and be adjusted according to actual conditions, the embodiment of the present invention is to this
Do not limit.
The method provided using the embodiment of the present invention, the first controller receive the current environment light that light sensor is sent
Intensity values, current environment light intensity setting value is read from second controller, judges that current environment light intensity value is set with current environment light intensity
Whether the difference of definite value is more than predetermined threshold value, if it is, adjusting the output duty cycle pair of driving power using PWM modulation technology
The light intensity of LED light group is controlled.The current environment light intensity value of light sensor transmission is received by the first controller, is being judged
When current environment light intensity value and the difference of current environment light intensity setting value are more than predetermined threshold value, are adjusted and driven using PWM modulation technology
The output duty cycle of dynamic power supply is controlled to the light intensity of LED light group.Light intensity that can be according to current environment light intensity to LED light group
It is controlled, reduces the waste of electric power resource, improves the comfort level that people watch lamp box.
In a kind of embodiment of the present invention, this method can also comprise the following steps：
Step 1：Receive the electrical parameter for the LED light group that data acquisition unit is sent；
Step 2：Electrical parameter is analyzed, obtains analysis result；
Step 3：Analysis result is sent to host computer by second controller；
Step 4：The processing for receiving the analysis result selection that the administrative staff that touch-screen is sent show according to host computer refers to
Order；
Step 5：According to process instruction, judge whether to start standby LED light group.
For convenience of description, above-mentioned five steps can be combined and illustrated.
Data acquisition unit can be disposed in LED advisement lamp case, for gathering the electrical parameter of LED light group, and will collection
To electrical parameter be sent to the first controller.The electrical parameter for the LED light group that first controller receiving data collector is sent,
And electrical parameter is analyzed, analysis result is obtained, analysis result is sent to second controller.Second controller receives
After analysis result, the host computer that analysis result is sent in Surveillance center, so as to which administrative staff can show according to host computer
Analysis result monitoring LED light group running situation, and corresponding process instruction is selected on the touch-screen of Surveillance center.
LED stand-by lamp groups, the constituent of stand-by lamp group and the structure of LED light group can be deployed with LED advisement lamp case
It is the same into composition, the stand-by lamp group of multiple LED light groups, the direct control of power supply driven can be included.When the normal work of LED light group
When making, stand-by lamp group is in run-stopping status, when LED light group is damaged or during failure cisco unity malfunction, stand-by lamp group
Operation will be activated, illumination is provided for LED advisement lamp case.
Fault alarm scheme circuitry can be provided with data acquisition unit, once the electricity of LED light group and stand-by lamp group
Abnormal parameters, LED light group damage and stand-by lamp group normally start failure, and the system failure just occurs, the fault alarm scheme circuitry
When detecting fault-signal, fault-signal is sent to the first controller, fault-signal is sent to master control by the first controller
Cabinet processed, the second controller in master control cabinet, can be by fault-signals after failure judgement type of alarm and fault alarm address
Be sent to Surveillance center, now, the alarm signal of Surveillance center is sounded, while host computer can by the type of failure alarm signal and
The information such as the address that specific failure occurs are shown in detail out, and administrative staff can make corresponding position as the case may be
Reason.
When host computer shows and LED light group failure be present, administrative staff, can when confirmation is LED light group failure by checking
To open standby LED light group.It is more to solve LED light group supply volume in each city, scope is big and distribution is extremely random, if
There is LED light group damage to be repaired in time, while for the operator of advertising media the problem of maintenance management inconvenience.
Data acquisition unit can be the higher circuit chip of the integrated level with high-precision electricity parameter acquisition function, its
In, electrical parameter can include voltage, electric current, power factor (PF) etc..
Corresponding to above method embodiment, the embodiment of the present invention additionally provides a kind of LED light group control device, hereafter retouches
A kind of LED light group control device stated can be mutually to should refer to a kind of above-described LED light group control method.
Referring to Fig. 3, the device can include：
Ambient light intensity values receiving module 301, for receiving the current environment light intensity value of light sensor transmission；
Setting value read module 302, work as reading second controller from second controller from what touch-screen was read
Preceding environmental light intensity setting value；
LED light group intensity control module 303, for judging the difference of current environment light intensity value and current environment light intensity setting value
Whether value is more than predetermined threshold value, if it is, adjusting the output duty cycle of driving power to LED light group using PWM modulation technology
Light intensity be controlled.
The device provided using the embodiment of the present invention, the first controller receive the current environment light that light sensor is sent
Intensity values, current environment light intensity setting value is read from second controller, judges that current environment light intensity value is set with current environment light intensity
Whether the difference of definite value is more than predetermined threshold value, if it is, adjusting the output duty cycle pair of driving power using PWM modulation technology
The light intensity of LED light group is controlled.The current environment light intensity value of light sensor transmission is received by the first controller, is being judged
When current environment light intensity value and the difference of current environment light intensity setting value are more than predetermined threshold value, are adjusted and driven using PWM modulation technology
The output duty cycle of dynamic power supply is controlled to the light intensity of LED light group.Light intensity that can be according to current environment light intensity to LED light group
It is controlled, reduces the waste of electric power resource, improves the comfort level that people watch lamp box.
In a kind of embodiment of the present invention, the device can also include with lower module：
Parameter receiving module, the electrical parameter of the LED light group for receiving data acquisition unit transmission；
As a result module is obtained, for analyzing electrical parameter, obtains analysis result；
As a result sending module, for analysis result to be sent into host computer by second controller；
Command reception module, the analysis result that the administrative staff for receiving touch-screen transmission show according to host computer select
Process instruction；
Lamp group starts judge module, for according to process instruction, judging whether to start standby LED light group.
Corresponding to above method embodiment, the embodiment of the present invention additionally provides a kind of LED advisement lamp case, described below
A kind of LED advisement lamp case can be mutually to should refer to a kind of above-described LED light group control method.
Referring to Fig. 4, the LED advisement lamp case can include：
First power supply 401, the first controller 402, the driving power 403 being connected respectively with the first controller 402 and photosensitive
Sensor 404, the LED light group 405 being connected with driving power 403；
Light sensor 404, gather current environment light intensity value；Current environment light intensity value is sent to the first controller 402；
First controller 402, receive current environment light intensity value；The second control is read from the second controller of master control cabinet
The current environment setting value that device is read from touch-screen；Judging current environment light intensity value and the difference of current environment setting value is
It is no to be more than predetermined threshold value, if it is, adjusting the output duty cycle of driving power 403 to LED light group using PWM modulation technology
405 light intensity is controlled；
First power supply 401, electric energy is provided for LED advisement lamp case.
LED light group 405 is the light source part of LED advisement lamp case.
The LED advisement lamp case provided using the embodiment of the present invention, the first controller receive working as light sensor transmission
Preceding environment light intensity value, current environment light intensity setting value is read from second controller, judge current environment light intensity value and work as front ring
Whether the difference of border light intensity setting value is more than predetermined threshold value, if it is, adjusting the output of driving power using PWM modulation technology
Dutycycle is controlled to the light intensity of LED light group.The current environment light intensity of light sensor transmission is received by the first controller
Value, when judging that current environment light intensity value and the difference of current environment light intensity setting value are more than predetermined threshold value, utilize PWM skill
The output duty cycle of art regulation driving power is controlled to the light intensity of LED light group.Can be according to current environment light intensity to LED
The light intensity of group is controlled, and reduces the waste of electric power resource, improves the comfort level that people watch lamp box.
In a kind of embodiment of the present invention, the LED advisement lamp case can also include data acquisition unit and LED is standby
With lamp group；
Data acquisition unit, gather the electrical parameter of LED light group 405；Electrical parameter is sent to the first controller 402；
First controller 402, it is additionally operable to receive electrical parameter；Electrical parameter is analyzed, obtains analysis result；It will divide
Analysis result is sent to host computer by second controller；Receive the analysis that the administrative staff that touch-screen is sent show according to host computer
As a result the process instruction selected；According to process instruction, judge whether to start standby LED light group.
In a kind of embodiment of the present invention, the LED advisement lamp case can also include：
The first communication component being connected with the first controller 402, between the first controller 402 and second controller
Communication.
In a kind of embodiment of the present invention, the first communication component is ZigBee wireless digital transmission communication components.
Because each LED advisement lamp case is nearer apart from master control cabinet, can be used for from ZigBee wireless digital transmission communication components
The first controller 402 in LED advisement lamp case is communicated with the second controller in master control cabinet.
ZigBee wireless digital transmission communication component networkings are simple, after second controller sends gathered data order, ZigBee
Network can be quickly order is passed to the first controller 402, and the first controller 402 can be rapidly by gathered data
Second controller is timely uploaded to, overcomes the shortcomings that conventional real time data acquisition is not strong.ZigBee wireless digital transmission communications
Component can use micropower wireless digital transmission communication terminal JY-RF4100, its embedded SimpliciTI Software Protocol Stack, 4 road moulds
Analog quantity inputs, RS232/RS485 double-serial ports, supports Modbus and custom protocol, is designed using power frequency 433MHz low-frequency range,
Inside and outside expansion power amplifier, the anti-interference and strong penetration performance of low frequency make the farthest transmission range of ZigBee wireless digital transmission communication components reachable
4-6KM, so as to ensure that the wireless near field communication of LED advisement lamp case control system.
It should be noted that selection of the embodiment of the present invention to ZigBee wireless digital transmission communication components is not construed as limiting, also may be used
So that using other models in addition to above-mentioned model, the purpose in the embodiment of the present invention can be realized.
In a kind of embodiment of the present invention, the LED advisement lamp case can also include：
The data acquisition unit being respectively connected with the first controller 402, LED light group 405 and standby LED light group, gather LED
The electrical parameter of group 405 and standby LED light group.
Corresponding to above method embodiment, the embodiment of the present invention additionally provides a kind of LED advisement lamp case control system, under
A kind of LED advisement lamp case control system of text description can be mutually to should refer to a kind of above-described LED light group control method.
Referring to Fig. 5, the system can include：
Foregoing LED advisement lamp case 510, the master control cabinet 520 being connected with LED advisement lamp case 510 and master control cabinet
520 connected touch-screens 530；Master control cabinet 520 includes second controller 521 and second source 522；
Touch-screen 530, current environment light intensity setting value is preset for administrative staff；
Second controller 521, read the current environment light intensity setting value in touch-screen 530；
Second source 522, power supply is provided for master control cabinet 520.
Administrative staff can control the switch of each LED advisement lamp case 510 by touch-screen 530, so as to more accurate control
The operation of LED advisement lamp case 510 processed, realizes the safety management of hommization.
Second source 522 can provide 0~250V powered by direct current, and the embodiment of the present invention is not limited this, specifically
Can be adjusted according to actual conditions.
The system provided using the embodiment of the present invention, the first controller receive the current environment light that light sensor is sent
Intensity values, current environment light intensity setting value is read from second controller, judges that current environment light intensity value is set with current environment light intensity
Whether the difference of definite value is more than predetermined threshold value, if it is, adjusting the output duty cycle pair of driving power using PWM modulation technology
The light intensity of LED light group is controlled.The current environment light intensity value of light sensor transmission is received by the first controller, is being judged
When current environment light intensity value and the difference of current environment light intensity setting value are more than predetermined threshold value, are adjusted and driven using PWM modulation technology
The output duty cycle of dynamic power supply is controlled to the light intensity of LED light group.Light intensity that can be according to current environment light intensity to LED light group
It is controlled, reduces the waste of electric power resource, improves the comfort level that people watch lamp box.
In a kind of embodiment of the present invention, the system can also be upper including being connected with master control cabinet 520
Machine；
Host computer, receive and show the electricity to LED light group 405 that the first controller 402 is sent by second controller 521
The analysis result that amount parameter obtains after being analyzed；
Touch-screen 530, it is additionally operable to administrative staff and process instruction is selected according to analysis result；Process instruction is passed through into the second control
Device 521 processed is sent to corresponding first controller 402.
In a kind of embodiment of the present invention, master control cabinet 520 can also include：
The second communication component being connected with second controller 521, for the controller 402 of second controller 521 and first,
Position machine and touch-screen 530 are communicated.
In a kind of embodiment of the present invention, the second communication component includes GPRS wireless communication components and ZigBee
Wireless digital transmission communication component.
Second communication component includes GPRS wireless communication components and ZigBee wireless digital transmission communication components, due to master control cabinet
Farther out, therefore master control cabinet 520 is led to by GPRS wireless digital transmission communications component with Surveillance center at 520 distance detection centers
Letter.Because master control cabinet 520 is relatively near apart from each LED advisement lamp case 510, from ZigBee wireless digital transmission communication components, for
Each LED advisement lamp case 510 is communicated.
GPRS wireless communication components and ZigBee wireless digital transmission communications component realize the nothing of data double-way by having complementary advantages
Line transmission-receiving function, solve the problems, such as that LED advisement lamp case 510 controls the transmission range in wireless system communication technology, realize pair
The long distance wireless intelligent control of LED advisement lamp case 510, facilitates effective management of advertising media operator, while reduce operation
Cost.
GPRS wireless communication components can use GTM900B, and it supports AT Command Set, embed ICP/IP protocol, support nothing
Line Packet Service, suitable for the remote radio communication of the present invention.
It should be noted that selection of the embodiment of the present invention to GPRS wireless communication components is not construed as limiting, can also use
Other models in addition to above-mentioned model, can realize the purpose in the embodiment of the present invention.
In a kind of embodiment of the present invention, second controller 521 is embedded system plate.
Second controller 521 is the core of whole system operation, and second controller 521 transmits data to host computer in real time
Information is simultaneously controlled by the instruction of touch-screen 530, and second controller 521 controls first in whole LED advisement lamp cases 510 to control
The operation of device 402 processed.Second controller 521 can be embedded Linux system plate, be put down based on ARM9 chips and Linux2.6
Platform and the control system built, the port of hardware resource and multiple external equipments is provided for kinematic system.Second controller 521
Embedded Linux system plate model JZ2440V3.0, its ARM9 chip is researched and developed by Samsung SAMSUNG, chip-shaped
Number it is S3C2240.
It should be noted that the embodiment of the present invention is not limited the model of second controller 521, other can also be used
Model, the purpose in the embodiment of the present invention can be realized.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be with it is other
The difference of embodiment, between each embodiment same or similar part mutually referring to.For LED disclosed in embodiment
For controlling on lamp group device, LED advisement lamp case and control system, because it is corresponded to the method disclosed in Example, so retouching
That states is fairly simple, and related part is referring to method part illustration.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software, the composition and step of each example are generally described according to function in the above description.These
Function is performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specialty
Technical staff can realize described function using distinct methods to each specific application, but this realization should not
Think beyond the scope of this invention.
Directly it can be held with reference to the step of method or algorithm that the embodiments described herein describes with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Specific case used herein is set forth to the principle and embodiment of the present invention, and above example is said
It is bright to be only intended to help and understand technical scheme and its core concept.It should be pointed out that for the common of the art
For technical staff, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these
Improve and modification is also fallen into the protection domain of the claims in the present invention.
Claims (10)
1. a kind of LED light group control method, it is characterised in that methods described includes：
First controller receives the current environment light intensity value that light sensor is sent；
Current environment light intensity setting value is read from second controller；Wherein, the current environment light intensity setting value is described the
What two controllers were read from touch-screen；
Judge whether the current environment light intensity value and the difference of the current environment light intensity setting value are more than predetermined threshold value；
If it is, the output duty cycle that driving power is adjusted using PWM modulation technology is controlled to the light intensity of LED light group.
2. according to the method for claim 1, it is characterised in that also include：
Receive the electrical parameter for the LED light group that data acquisition unit is sent；
The electrical parameter is analyzed, obtains analysis result；
The analysis result is sent to host computer by the second controller；
The processing for receiving the analysis result selection that the administrative staff that the touch-screen is sent show according to the host computer refers to
Order；
According to the process instruction, judge whether to start standby LED light group.
3. a kind of LED light group control device, it is characterised in that described device includes：
Ambient light intensity values receiving module, for receiving the current environment light intensity value of light sensor transmission；
Setting value read module, work as reading the second controller from the second controller from what touch-screen was read
Preceding environmental light intensity setting value；
LED light group intensity control module, for judging the current environment light intensity value and the current environment light intensity setting value
Whether difference is more than predetermined threshold value, if it is, adjusting the output duty cycle of driving power to LED using PWM modulation technology
The light intensity of group is controlled.
A kind of 4. LED advisement lamp case, it is characterised in that including：
First power supply, the first controller, the driving power being connected respectively with first controller and light sensor, with it is described
The connected LED light group of driving power；
The light sensor, gather current environment light intensity value；The current environment light intensity value is sent to first control
Device；
First controller, receive the current environment light intensity value；Described is read from the second controller of master control cabinet
The current environment setting value that two controllers are read from touch-screen；Judge the current environment light intensity value and the current environment
Whether the difference of setting value is more than predetermined threshold value, if it is, the output that the driving power is adjusted using PWM modulation technology is accounted for
The light intensity that sky compares the LED light group is controlled；
First power supply, electric energy is provided for LED advisement lamp case.
5. LED advisement lamp case according to claim 4, it is characterised in that also including data acquisition unit and LED stand-by lamps
Group；
The data acquisition unit, gather the electrical parameter of the LED light group；The electrical parameter is sent to first control
Device；
First controller, it is additionally operable to receive the electrical parameter；The electrical parameter is analyzed, obtains analysis knot
Fruit；The analysis result is sent to host computer by the second controller；Receive the administrative staff that the touch-screen is sent
The process instruction that the analysis result shown according to the host computer selects；According to the process instruction, judge whether to start
The standby LED light group.
6. LED advisement lamp case according to claim 5, it is characterised in that also include：
The first communication component being connected with first controller, between first controller and the second controller
Communication.
7. LED advisement lamp case according to claim 6, it is characterised in that first communication component is that ZigBee is wireless
Digital transmission communication component.
8. a kind of LED advisement lamp case control system, it is characterised in that the system includes：
LED advisement lamp case as described in any one of claim 4 to 7, the master control cabinet being connected with the LED advisement lamp case, with
The connected touch-screen of the master control cabinet；The master control cabinet includes second controller and second source；
The touch-screen, current environment light intensity setting value is preset on the touch-screen for administrative staff；
The second controller, read the current environment light intensity setting value in the touch-screen；
The second source, power supply is provided for the master control cabinet.
9. system according to claim 8, it is characterised in that also include the host computer being connected with the master control cabinet；
The host computer, receive and show the electricity to LED light group that first controller is sent by the second controller
The analysis result that amount parameter obtains after being analyzed；
The touch-screen, it is additionally operable to the administrative staff and process instruction is selected according to the analysis result；By the process instruction
Corresponding first controller is sent to by the second controller.
10. system according to claim 9, it is characterised in that the master control cabinet also includes：
The second communication component being connected with the second controller, for the second controller and first controller, institute
State host computer and the touch-screen is communicated.
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| CN201711221551.0A CN107734791A (en) | 2017-11-22 | 2017-11-22 | LED light group control method, device, LED advisement lamp case and control system |
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|---|---|---|---|
| CN201711221551.0A CN107734791A (en) | 2017-11-22 | 2017-11-22 | LED light group control method, device, LED advisement lamp case and control system |
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