CN209729466U - A kind of dynamic LED array screen for night watching - Google Patents
A kind of dynamic LED array screen for night watching Download PDFInfo
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- CN209729466U CN209729466U CN201920249130.7U CN201920249130U CN209729466U CN 209729466 U CN209729466 U CN 209729466U CN 201920249130 U CN201920249130 U CN 201920249130U CN 209729466 U CN209729466 U CN 209729466U
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Abstract
The utility model relates to LED array Screen Technology fields, embodiment specifically discloses a kind of dynamic LED array screen for night watching, including LED dot matrix screen, LED drive module, microprocessor and memory module, LED drive module and memory module are electrically connected with microprocessor respectively, LED drive module is also electrically connected with LED dot matrix screen, microprocessor can read the correspondence LED lattice information stored in memory module according to current time and generate pattern in 2 D code information and show on LED dot matrix screen, even if current two-dimension pattern-information is replicated, to next night watching time point, this pattern in 2 D code information is also no longer valid, staff is effectively prevented to practise fraud in night watching, LED dot matrix screen uses three-color LED lamp bead simultaneously, in the case where same pixel point, compared to biography System monochromatic LED pattern in 2 D code considerably increases two-dimensional pattern information content, further enhances antifalsification.
Description
Technical field
The utility model relates to LED array Screen Technology fields, and in particular to a kind of dynamic LED array screen for night watching
Curtain.
Background technique
Two dimensional code night watching is a kind of two dimensional code adhesive sticker paster printed, it is attached to patrol point, equipment, can on article
To be registered, be safeguarded that registration, information note etc. operate, be with the rise of mobile internet and the novel night watching that grows up
Mode greatly reduces the cost of night watching because this mode eliminates the investment and maintenance of patrolling stick etc equipment.
However two dimensional code night watching has a problem always, the personnel that exactly register practise fraud barcode scanning the problem of, for lacking a sense of responsibility
Staff, can then directly barcode scanning forms falseness and registers record shooting two dimensional code in advance, it is practical live without reaching.Due to
The shortcoming for supervising aspect hinders the development of two dimensional code patrol system application.
Utility model content
In view of this, the application provides a kind of dynamic LED array screen solution two dimensional code letter based on time dynamic
Breath is replicated the problem of registering as falseness.
In order to solve the above technical problems, technical solution provided by the utility model is a kind of dynamic LED battle array for night watching
Column screen, including LED dot matrix screen, LED drive module, microprocessor and memory module, the LED drive module and described are deposited
Storage module is electrically connected with the microprocessor respectively, and the LED drive module is also electrically connected with the LED dot matrix screen, wherein
The memory module is for storing and the one-to-one several LED lattice informations of temporal information, the LED dot matrix
Information includes the Position Number information of the dynamic LED array screen,
The microprocessor is used to read corresponding LED lattice information in the memory module according to current time information and send out
LED drive module is sent to,
The LED drive module is used to drive the LED dot matrix screen to show two dimensional code figure according to the LED lattice information
Case,
Wherein, the LED dot matrix screen includes that 8 rows 8 arrange totally 64 three-color LED lamp beads, every three-color LED lamp bead packet
Blue-light source, red light source and green light source are included, every three-color LED lamp bead is 1 pixel.
Preferably, the LED drive module includes 4 line driving chips and 1 decoder chip, the every row driving
Chip includes 2 row drive outputs and 2 rows drive input terminal, 1 row drive output correspondence and the LED dot matrix
The anode electrical connection of the blue-light source, red light source and green light source of 1 row three-color LED lamp bead in screen, 1 row driving are defeated
Enter end correspondence be electrically connected with 1 control output end of the decoder chip, the decoder chip control signal with it is described
The row drive control end of microprocessor is electrically connected.
Preferably, the LED drive module further includes 3 column driving chips, wherein 8 of the 1st column driving chip are defeated
Outlet is successively electrically connected with the cathode of the blue-light source of 8 column three-color LED lamp beads of the LED dot matrix screen respectively, and the 2nd column drive
8 output ends of dynamic chip are successively electric with the cathode of the green light source of 8 column three-color LED lamp beads of the LED dot matrix screen respectively
8 output ends of connection, the 3rd column driving chip are successively red with 8 column three-color LED lamp beads of the LED dot matrix screen respectively
The cathode of color light source is electrically connected, the input control end of 3 column driving chips respectively with the respective column control of the microcontroller
End processed is connected in series.
Preferably, the dynamic LED array screen further includes the wireless communication module being electrically connected with the microprocessor, institute
State wireless communication module for realize with external network communication remotely update stored in the memory module with association in time
Several LED lattice informations.
Preferably, the dynamic LED array screen further includes power module, and the power module is used for the LED point
Battle array screen, LED drive module, microprocessor, memory module and wireless communication module power supply.
Preferably, the line driving chip uses 74HC4953 line driving chip, and the decoder chip uses 74HC138
Decoder chip.
Preferably, the column driving chip is higher than the PWM constant-current LED driving chip of 1000Hz using refreshing frequency
MBI5041。
Preferably, the microprocessor uses ARM core microprocessor.
Preferably, the ARM core microprocessor uses single-chip microcontroller STM32F103RCT6.
Compared with prior art, detailed description are as follows for its advantages by the application: provided by the present application for the dynamic of night watching
State LED array screen, including LED dot matrix screen, LED drive module, microprocessor and memory module, LED drive module and are deposited
Storage module is electrically connected with microprocessor respectively, and LED drive module is also electrically connected with LED dot matrix screen, and microprocessor being capable of basis
Current time reads the correspondence LED lattice information stored in memory module and generates pattern in 2 D code information and show in LED dot matrix
On screen, even if current two-dimension pattern-information is replicated, next night watching time point is arrived, this pattern in 2 D code information has also been lost
Effect, effectively prevents staff and practises fraud in night watching, while LED dot matrix screen uses three-color LED lamp bead, in same pixel
In the case where point, two-dimensional pattern information content is considerably increased compared to traditional monochromatic LED pattern in 2 D code, is further enhanced anti-fake
Property.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of dynamic LED array screen provided by the utility model；
Fig. 2 is LED dot matrix screen construction schematic diagram provided by the utility model；
Fig. 3 is the circuit diagram of three-color LED lamp bead provided by the utility model；
Fig. 4 is the circuit diagram of LED drive module provided by the utility model；
Fig. 5 is the structural schematic diagram of another dynamic LED array screen provided by the utility model.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawing and have
The utility model is described in further detail for body embodiment.
As shown in Figure 1, the utility model provides a kind of dynamic LED array screen for night watching, including LED dot matrix screen
Curtain, LED drive module, microprocessor and memory module, LED drive module and memory module are electrically connected with microprocessor respectively,
LED drive module is also electrically connected with LED dot matrix screen, wherein if memory module is one-to-one with temporal information for storing
Dry LED lattice information, LED lattice information include the Position Number information of the dynamic LED array screen, and microprocessor is used for root
Corresponding LED lattice information in memory module is read according to current time information and is sent to LED drive module, and LED drive module is used
According to LED lattice information driving LED dot matrix screen displaying pattern in 2 D code.
As shown in Figures 2 and 3, LED dot matrix screen includes that 8 rows 8 arrange totally 64 three-color LED lamp beads, wherein every three-color LED
Lamp bead includes blue-light source, red light source and green light source, and every three-color LED lamp bead is 1 pixel, LED dot matrix screen
Share 64 pixels.Each pixel can drive type to carry out red, three kinds of colors of green and blue according to LED drive module
Switching display.LED dot matrix screen uses three-color LED lamp bead, in the case where same pixel point, compared to traditional monochromatic LED two dimension
Code pattern considerably increases two-dimensional pattern information content, further enhances antifalsification.
As shown in figure 4, LED drive module includes 4 line driving chips and 1 decoder chip, every line driving chip
Internal there are two row driving tubes, can drive the display line of two LED dot matrix screens, every line driving chip includes that 2 rows drive
Dynamic input terminal and 2 row drive outputs, wherein 1 row drive output correspondence and 1 row three-color LED light in LED dot matrix screen
The anode electrical connection of the blue-light source, red light source and green light source of pearl, 1 row driving input terminal correspondence and decoder chip
1 control output end electrical connection, decoder chip control signal are electrically connected with the row drive control end of microprocessor.Specifically
, row control signal A, B, C of microprocessor output control decoder chip.Decoder chip exports 8 road signals control row and drives
Dynamic chip, then line driving chip output end controls the anode of the every row of LED dot matrix screen screen.
LED drive module further includes 3 column driving chips, wherein 8 output ends difference of the 1st column driving chip is successively
It is electrically connected with the cathode of the blue-light source of 8 column three-color LED lamp beads of LED dot matrix screen, is responsible for the blue light of this 8 column tri coloured lantern pearl
Source driving task；8 output ends of the 2nd column driving chip respectively successively with 8 column three-color LED lamp beads of LED dot matrix screen
The cathode of green light source is electrically connected, and is responsible for the green light source driving task of this 8 column tri coloured lantern pearl；8 of 3rd column driving chip
Output end is successively electrically connected with the cathode of the red light source of 8 column three-color LED lamp beads of LED dot matrix screen respectively, is responsible for this 8 column three
The red light source driving task of colored lights pearl；The input control end of the 3 column driving chips respective column with the microcontroller respectively
Control terminal is connected in series.For example, it is desired to light the red light of a pixel, it is only necessary to the high electricity of row output where this red light
It is flat, column output low level.
Wherein, 74HC4953 line driving chip can be used in line driving chip, and 74HC138 decoder can be used in decoder chip
The PWM constant-current LED driving chip MBI5041 that refreshing frequency is higher than 1000Hz can be used in chip, column driving chip, and microprocessor can
Using ARM core microprocessor, specifically, single-chip microcontroller STM32F103RCT6 can be used in ARM core microprocessor.
In addition, the data of the three color dot system of battle formations of correlation stored are passed through LED drive module by microprocessor in real time refreshes exhibition
Show on LED dot matrix screen.This scheme is by way of row scanning, and lamp plate is lighted line by line, between two rows directly scan
Every very short, due to the visual persistence effect of human eye, so we look like continuous picture.
As shown in figure 5, the utility model also provides another dynamic LED array screen, in above-mentioned LED array screen construction
On the basis of, it further include the wireless communication module being electrically connected with microprocessor, wireless communication module is used for and external network communication
Realize several LED lattice informations with association in time for remotely updating storage and storing in module.Communication unit is logical using GPRS
Letter can remotely update three-color LED in storage module and show data.
In addition, the dynamic LED array screen further includes power module, power module is used to drive to LED dot matrix screen, LED
Module, microprocessor, memory module and wireless communication module power supply.
The utility model is by being stored in dynamic LED array for a plurality of three-color LED lattice information corresponding with temporal information
In the memory module of screen, microprocessor is based on current time and selects a corresponding three-color LED lattice information, then passes through
LED drive module drives three-color LED dot matrix screen, and pattern-information (two dimensional code) is shown.Pattern is changed over time simultaneously
Information dynamic change, even if current pattern information is replicated, at next night watching time point, this pattern-information is also failed.It moves simultaneously
State LED array screen equipment can update storage the dot pattern information in unit by GPRS, further increase anti-cheating.This
The night watching place identification of scheme is dedicated APP barcode scanning, and the letter of current LED dot matrix image is then parsed by image recognition algorithm
Breath, the location information in place of checking card is obtained with this.
Above are merely preferred embodiments of the utility model, it is noted that above-mentioned preferred embodiment should not regard
For limitations of the present invention, the protection scope of the utility model should be defined by the scope defined by the claims..For
For those skilled in the art, without departing from the spirit and scope of the utility model, it can also make several
Improvements and modifications, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (9)
1. a kind of dynamic LED array screen for night watching, which is characterized in that including LED dot matrix screen, LED drive module, micro-
Processor and memory module, the LED drive module and the memory module are electrically connected with the microprocessor respectively, described
LED drive module is also electrically connected with the LED dot matrix screen, wherein
The memory module is for storing and the one-to-one several LED lattice informations of temporal information, the LED lattice information
Position Number information comprising the dynamic LED array screen,
The microprocessor is used to read corresponding LED lattice information in the memory module according to current time information and be sent to
LED drive module,
The LED drive module is used to drive the LED dot matrix screen to show pattern in 2 D code according to the LED lattice information,
Wherein, the LED dot matrix screen includes that 8 rows 8 arrange totally 64 three-color LED lamp beads, and every three-color LED lamp bead includes indigo plant
Color light source, red light source and green light source, every three-color LED lamp bead are 1 pixel.
2. dynamic LED array screen according to claim 1, which is characterized in that the LED drive module includes 4 rows
Driving chip and 1 decoder chip, every line driving chip include that 2 row drive outputs and 2 rows drive input terminal, often
Corresponding blue-light source, red light source and the green with 1 row three-color LED lamp bead in the LED dot matrix screen of a row drive output
The anode of light source is electrically connected, and each row driving input terminal correspondence is electrically connected with 1 control output end of the decoder chip, institute
Decoder chip control signal is stated to be electrically connected with the row drive control end of the microprocessor.
3. dynamic LED array screen according to claim 2, which is characterized in that the LED drive module further includes 3
Column driving chip, wherein 8 output ends of the 1st column driving chip respectively successively with 8 column, three color of the LED dot matrix screen
The cathode of the blue-light source of LED lamp bead is electrically connected, 8 output ends of the 2nd column driving chip respectively successively with the LED dot matrix
The cathode of the green light source of 8 column three-color LED lamp beads of screen is electrically connected, and 8 output ends difference of the 3rd column driving chip is successively
Be electrically connected with the cathode of the red light source of 8 column three-color LED lamp beads of the LED dot matrix screen, 3 column driving chips it is defeated
Enter control terminal to be connected in series with the respective column control terminal of the microprocessor respectively.
4. dynamic LED array screen according to claim 1, which is characterized in that the dynamic LED array screen further includes
The wireless communication module being electrically connected with the microprocessor, the wireless communication module are used to realize with external network communication long-range
Update several LED lattice informations with association in time stored in the memory module.
5. dynamic LED array screen according to claim 1, which is characterized in that the dynamic LED array screen further includes
Power module, the power module are used for the LED dot matrix screen, LED drive module, microprocessor, memory module and nothing
The power supply of line communication module.
6. dynamic LED array screen according to claim 2, which is characterized in that the line driving chip uses
74HC4953 line driving chip, the decoder chip use 74HC138 decoder chip.
7. dynamic LED array screen according to claim 3, which is characterized in that the column driving chip is using refreshing frequency
Rate is higher than the PWM constant-current LED driving chip MBI5041 of 1000Hz.
8. dynamic LED array screen according to claim 1, which is characterized in that the microprocessor is micro- using ARM kernel
Processor.
9. dynamic LED array screen according to claim 8, which is characterized in that the ARM core microprocessor is using single
Piece machine STM32F103RCT6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920249130.7U CN209729466U (en) | 2019-02-27 | 2019-02-27 | A kind of dynamic LED array screen for night watching |
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| CN201920249130.7U CN209729466U (en) | 2019-02-27 | 2019-02-27 | A kind of dynamic LED array screen for night watching |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112287253A (en) * | 2020-10-28 | 2021-01-29 | 张家港市爱上旅途网络科技有限公司 | Information display method and system |
| CN112419535A (en) * | 2020-11-26 | 2021-02-26 | 深圳市中研安创科技发展有限公司 | Patrol management and control method, system, device, computer equipment and storage medium |
| CN114604006A (en) * | 2022-03-17 | 2022-06-10 | 河北绿谷信息科技有限公司 | Warehouse-out code making device for traditional Chinese medicine traceability |
-
2019
- 2019-02-27 CN CN201920249130.7U patent/CN209729466U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112287253A (en) * | 2020-10-28 | 2021-01-29 | 张家港市爱上旅途网络科技有限公司 | Information display method and system |
| CN112419535A (en) * | 2020-11-26 | 2021-02-26 | 深圳市中研安创科技发展有限公司 | Patrol management and control method, system, device, computer equipment and storage medium |
| CN114604006A (en) * | 2022-03-17 | 2022-06-10 | 河北绿谷信息科技有限公司 | Warehouse-out code making device for traditional Chinese medicine traceability |
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