CN105609083B - A kind of display control method of oil price board system - Google Patents
A kind of display control method of oil price board system Download PDFInfo
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- CN105609083B CN105609083B CN201511032126.8A CN201511032126A CN105609083B CN 105609083 B CN105609083 B CN 105609083B CN 201511032126 A CN201511032126 A CN 201511032126A CN 105609083 B CN105609083 B CN 105609083B
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- oil price
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The present invention relates to a kind of display control method of oil price board system, including step：Control card is sent oil price display data to multiple display cards in a manner of broadcast communication and stored；One or more type oil price display datas of the multiple display card respectively in the display pattern of oneself the selection oil price display data, which are exported to multiple oil price board lamp plates, to be shown；And to obtain, multiple displays block the multiple response datas returned to the multiple display card of control card poll in a manner of point-to-point communication and whether the oil price display data for judging to include in each response data and the oil price display data in control card are consistent.Therefore, the present invention can lift oil price modification efficiency and oil price modification accuracy, and user is in operational control card, it is not necessary to be concerned about the display pattern and mounting means of display card, simplify the oil price display data modification operation during mixed mode installation of display card.
Description
Technical field
The present invention relates to oil price board control technology field, more particularly to a kind of display control method of oil price board system.
Background technology
Oil price board system be in conventional oil price modification one by one tower beacon, one by one oil price board lamp plate, show that numeral is entered one by one
Row modification, for the common user in gas station, operating usually easily there is oil price modification efficiency is low and oil price is repaiied
Change the problems such as accuracy is low, and price modification non-timely with the error resistance market product that can influence gas station in keen competition
Board and reputation.
The content of the invention
Therefore, to overcome defect present in prior art and deficiency, the present invention proposes a kind of display of oil price board system
Control method.
Specifically, the display control method for a kind of oil price board system that the embodiment of the present invention proposes, the oil price board system
Including control card, multiple display cards and the multiple oil price board lamp plates for being connected to the multiple display card.The oil price board system
Display control method include step：(a) control card sends oil price display data to the multiple in a manner of broadcast communication
Display card is stored, wherein the oil price display data includes multigroup first kind oil price display data and multigroup Second Type
Oil price display data；(b) oil price that the multiple display card selects storage according to the display pattern of oneself respectively shows number
Multigroup first kind oil price display data and/or multigroup Second Type oil price display data in are exported to relative
The multiple oil price board lamp plates answered are shown；And (c) described control card is the multiple aobvious according to mailing address mapping table poll
Show card to obtain multiple response datas of the multiple display card return and judge the oil included in each described response data
Whether valency display data and the oil price display data in the control card are consistent.
In one embodiment of the invention, the display control method of the oil price board system also includes step：Work as step
(c) the oil price display data that is included in one first response data in the multiple response data and the control card are judged in
In the oil price display data it is inconsistent, whether the control card detects includes oil price in first response data and shows
Data modification marks；If including oil price display data modification mark in first response data, the control card is by described in
The oil price display data included in first response data is synchronized to the control card and passes through broadcast communication side by the control card
The oil price display data of the multiple display card storage of formula modification；And if do not shown in first response data comprising oil price
Data modification is marked, and the control card is changed by point-to-point communication mode in the display card for returning to first response data
Oil price display data.
In one embodiment of the invention, the oil price display data modification marks labeled as remote controller operation.
In one embodiment of the invention, the broadcast communication mode is 433MHZ frequency wireless RF broadcast communication parties
Formula.
In one embodiment of the invention, multigroup first kind oil price display data is that multigroup cash oil price is shown
Data, multigroup Second Type oil price display data are multigroup credit card oil price display data.
In one embodiment of the invention, the display pattern of the multiple display card differs.
In one embodiment of the invention, the display pattern of each display card is single cash pattern, single credit
Mode card or cash and credit card mixed mode.
In one embodiment of the invention, the display control method of the oil price board system also includes step：The control
Fabrication sets the display pattern of the multiple display card in a manner of twireless radio-frequency communication.
In one embodiment of the invention, the multiple display card is completed after matching not to the control with the control card
The broadcast communication instruction that fabrication is sent is fed back.
In addition, a kind of display control method for oil price board system that another embodiment of the present invention proposes, the oil price board system
System includes control card, multiple display cards and the multiple oil price board lamp plates for being connected to the multiple display card.The oil price board system
The display control method of system includes step：(i) control card sends oil price display data to described more in a manner of broadcast communication
Individual display card is stored；(ii) the multiple display card selects the oil price display data according to the display pattern of oneself respectively
In one or more type oil price display datas export to corresponding multiple oil price board lamp plates and shown；And (iii)
The control card sends query statement to the multiple display card in a manner of point-to-point communication and returned with obtaining the multiple display card
The oil price display data that the multiple response datas and judging returned include in each described response data with the control card
Whether the oil price display data is consistent；(iv) when judging one first sound in the multiple response data in step (iii)
Answer the oil price display data included in data and the oil price display data in the control card inconsistent, the control card inspection
Survey in first response data and whether include oil price display data modification mark；If (v) detect first number of responses
Include oil price display data modification mark in, the oil price included in first response data is shown number by the control card
Block the oil price stored according to being synchronized to the control card and changing the multiple display by broadcast communication mode by the control card
Display data；It is described and (vi) includes oil price display data modification mark if being not detected by first response data
Control card changes the oil price display data in the display card for returning to first response data by point-to-point communication mode.
From the foregoing, it will be observed that the embodiment of the present invention is in the modification of oil price display data, compared to tower beacon, one by one oil price board one by one in the past
Lamp plate, the mode that numeral is modified is shown one by one, improve the efficiency of oil price modification and the accuracy of oil price modification.User
In operational control card, it is not necessary to be concerned about the display pattern and mounting means of display card, simplify the mixed mode installation of display card
When oil price display data modification operation.
By the detailed description below with reference to accompanying drawing, other side of the invention and feature become obvious.But it should know
Road, the accompanying drawing is only the purpose design explained, not as the restriction of the scope of the present invention.It is it should also be noted that unless another
Point out outside, it is not necessary to which scale accompanying drawing, they only try hard to conceptually illustrate structure and flow described herein.
Brief description of the drawings
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in detail.
Fig. 1 is the control card correspondence with foreign country schematic diagram in a kind of oil price board control system of the embodiment of the present invention.
Fig. 2 is the display card correspondence with foreign country schematic diagram in a kind of oil price board control system of the embodiment of the present invention.
Fig. 3 is the remote control correspondence with foreign country schematic diagram in a kind of oil price board control system of the embodiment of the present invention.
Fig. 4 is a kind of plurality of display modes schematic diagram of oil price board control system of the embodiment of the present invention.
Fig. 5 is a kind of configuration diagram of oil price board system of the embodiment of the present invention.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, below in conjunction with the accompanying drawings to the present invention
Embodiment be described in detail.
Four kinds of oil products are primarily present in conventional use for oil price board system and the oil price of two kinds of display patterns is shown, Yi Zhongxian
It is single cash pattern to show pattern, and another display pattern is cash and credit card mixed mode；The following embodiments of the present invention are led to
The oil price board system moment with reference to belonging to enabling gas station for crossing control card and display card is modified simultaneously.
Specifically, referring to Fig. 1, the control card 11 of the present embodiment is configured with the radio frequency mould of radio-frequency module such as 433MHZ frequencies
Block (as SI4463 wireless chips etc.), thus it can for example show that card is carried out wirelessly by radio frequency transmission mode and external equipment
Communication.Typically, control card 11 shows that the display pattern of card sends oil price according to subordinate, if subordinate shows that card is single cash
The spot price data for for example sending four kinds of conventional oil products to card is shown, are by pattern, control card 11 if subordinate shows card
Cash and credit card mixed mode, control card 11 by for example send four kinds of conventional oil products cash and credit card price data extremely
Display card.
Referring to Fig. 2, the display card 21 of the present embodiment is configured with the radio frequency of radio-frequency module such as 433MHZ frequencies in design
Module, thus it carries out radio communication by radio frequency transmission mode and external equipment such as control card 11 or remote control.In addition, root
Ten road binders valency board lamp plate connector 1-10 are designed according to four kinds of conventional oil products, oil price board lamp plate connector 1-4 is designed as one group,
Oil price board lamp plate connector 5-8 is designed as one group；Oil price board lamp plate connector 9,10 is used as spare interface, can be with logical mappings
(or binding) oil price board lamp plate connector 1-8, can during being broken down in oil price board lamp plate interface 1-8 with its binding person
Output and its binding person's identical oil price display data, so as to which user need to will only be connected to the signal wire such as net of failure connector
Line switches to the spare interface of binding, without changing display card immediately.
Referring to Fig. 3, the remote control 31 of the present embodiment is configured with the radio-frequency module of radio-frequency module such as 433MHZ frequencies, so as to
It can for example show that card 21 carries out radio communication by radio frequency transmission mode and external equipment., can when changing oil price display data
Be one by one tower beacon, show one by one card, one by one data output channel, show that numeral is modified one by one, with compatible existing oil
Valency display data changes mode.
In addition, the present embodiment devises the function of the display pattern of the modification display of remote control 31 card 21 and by control card 11
The function of the oil price display data of all display cards 21 of Synchronization Control card subordinate.When changing oil price by remote control 31, without
One by one tower beacon, show one by one card change, only need to change one display card 21 oil price display data, can be same by control card 11
The oil price display data of all display cards of step modification control card subordinate.
Referring to Fig. 4 a-4c, there is three kinds of display patterns shown in Fig. 4 a-4c in the oil price board system of the present embodiment.In fig.4,
Display card 21 is single cash pattern, and the oil price board lamp plate connector 1-4 outputs on display card 21 are, for example, common four kinds
The spot price data of oil product, the spot price number of four kinds of e.g. common oil products of oil price board lamp plate connector 5-8 outputs
According to；The oil price board lamp plate board that the oil price board lamp plate of oil price board lamp plate connector 1-4 connections connects with oil price board lamp plate connector 5-8
It is oppositely arranged in positive and negative, so as to realize the double-sided display of oil product spot price.In fig. 4b, display card 21 is cash credit card
Pattern (namely one kind in cash and credit card mixed mode), oil price board lamp plate connector 1-4 outputs are, for example, common
The spot price data of four kinds of oil products, the credit card of four kinds of e.g. common oil products of oil price board lamp plate connector 5-8 outputs
Price data.In Fig. 4 c, display card 21 is that credit card cash pattern is (namely another in cash and credit card mixed mode
Kind), the credit card price data of four kinds of e.g. common oil products of oil price board lamp plate connector 1-4 outputs, oil price board lamp plate
The spot price data of four kinds of e.g. common oil products of connector 5-8 outputs.
For ease of understanding the present embodiment, the display control method below in conjunction with Fig. 5 to the oil price board system of the present embodiment
It is described in detail：
Display card sets display pattern (namely single existing by control card 11 21 when mounted, according to actual use demand
Golden pattern, cash credit mode card, credit card cash pattern) in addition oil price board lamp plate connector 9,10 logical mappings connector
(or the oil price board lamp plate connector bound with it), and the subordinate for being stored in control card 11 is shown in the storage medium of card 21.
First, when being controlled to display card 21, control card 11 is for example by the cash and credit card of four kinds of common oil products
Price data is sent to subordinate by radio frequency transmission mode and shows card 21.
2nd, display card 21 is oily come tissue according to the display pattern of oneself and the logical mappings of oil price board lamp plate connector 9,10
Valency board lamp plate connector 1-10 output data is exported to connected oil price board lamp plate progress oil price and shown.
Control process is specific as follows：
Display card 21 for example has ten data output channels (respectively correspond to ten road binders valency board lamp plate connector 1-10), and
Data output channel 1-4 is designed as one group in logic, data output channel 5-8 is designed as one group, by data output channel
9-10 is designed as data output channel corresponding to standby connector, when any oil price board lamp plate corresponding to data output channel 1-8
When connector breaks down, logic association data output channel 9-10 can be carried out by parameter configuration.
It can show that the radio-frequency module of card 21 is matched by the radio-frequency module of control card 11 and its multiple subordinate during installation,
Control card 11 is when sending matched order, in order to avoid showing that card 21 conflicts with other subordinaties, therefore shows 21 meetings of card
The radio frequency matched order that response control card 11 is sent within such as three minutes in preset time after the power-up is matched, and is stored
The mailing address of control card 11, control card 11 can also store the mailing address of display card 21, and establish multiple subordinaties and show card 21
Mailing address mapping table, show card 21 to control and manage multiple subordinaties.
According to installation requirements during installation, data output channel 1-4 can be allowed to export the oil price data of cash or credit card, can be allowed
Data output channel 5-8 exports the oil price data of cash or credit card, and single cash pattern, cash credit card will so occur
Pattern, credit card cash pattern, cash oil price display data, data output channel 5-8 are exported when needing data output channel 1-4
Cash oil price display data is exported, control card 11 is single cash pattern by the pattern for showing card 21 is set；When needing data defeated
Go out passage 1-4 output cash oil prices display data, data output channel 5-8 export credit card oil price display datas, control card 11
It is cash credit mode card (namely one kind of cash and credit card mixed mode) by the pattern for showing card 21 is set；When needing to count
According to output channel 1-4 export credit card oil prices display data, data output channel 5-8 output cash oil price display datas, control
Card 11 is credit card cash pattern (namely another kind of cash and credit card mixed mode) by the pattern for showing card 21 is set；When
So, it is to be understood that the display pattern of each display card 21 can also be set by other equipment such as remote control 31.
Control card 11 shows that card 21 sends oil price display data to each subordinate, such as can showing four kinds of common oil products
Polishes valency display data and credit card oil price display data totally eight groups of oil price display datas be sent in a manner of broadcast communication it is all
Subordinate shows that card 21 is stored, and each subordinate shows card 21 according to the display pattern tissue data output channel 1-8's of oneself
Display output data are shown.Because subordinate shows that the reception for the broadcast communication instruction for blocking 21 pairs of control cards 11 feeds back meeting simultaneously
Each subordinate shows that the broadcast communication instruction that card 21 will not be to control card 11 is fed back when causing communication failure, therefore designing,
However, to ensure that the correctness of broadcasting instructions, devises the automatic regular polling subordinate of control card 11 and shows card function, such as control card
11 periodically point-to-point can show that card 21 sends oil price display data query statement, subordinate in for example every five minutes to each subordinate
Display card 21 can return to local oil price display data, basic parameter example after receiving the oil price display data query statement of control card 11
Mark such as remote controller operation is changed such as oil price display pattern, oil price display data to mark, if control card 11 is with broadcast communication
Have modified the oil price display data that each subordinate shows card 21, poll will be performed at once, be not in five minutes etc.
Treat.The design of this poll, first, in order to ensure that it is correct during broadcast communication modification oil price display data that control card 11 passes through
Property, second, showing whether the communication of card 21 is normal for inquiry subordinate, 21 Hes of card are shown to detect the subordinate of communication failure in time
Ensured for the broadcast communication modification oil price display data of control card feedback-less information, third, the oil price of synchronous remote control device modification shows
Registration evidence.If the oil price display data that inquiry is returned is not consistent with the oil price display data of control card 11, and is not remotely controlled
Device operation mark, control card 11 can by point-to-point control mode change may be due to broadcast communication when error code cause oil price to show
Registration shows the oil price display data of card 21 according to unmodified correctly subordinate.
After the oil price display data of any one subordinate display card 21 that control card 11 is changed by remote control 31, work as control
When card 11 is polled, if it find that showing that the oil price display data of card 21 and the oil price of the local of control card 11 show by some subordinate
Registration is according to inconsistent, if detecting, remote controller operation marks, and the oil price display data that can will show card 21 be synchronized to control card 11
In, and show the cash oil price display data and credit that are stored in card 21 by all subordinaties of broadcast communication modification control card 11
Card oil price display data simultaneously empties the remote controller operation mark that the subordinate of control card 11 shows card 21, to cause each subordinate to show card
Cash oil price display data and credit card oil price display data between 21 are consistent.
In summary, the embodiment of the present invention is in the modification of oil price display data, compared to tower beacon, one by one oil price board one by one in the past
Lamp plate, the mode that numeral is modified is shown one by one, improve the efficiency of oil price modification and the accuracy of oil price modification.User
In operational control card, it is not necessary to be concerned about the display pattern and mounting means of display card, simplify the mixed mode installation of display card
Oil price display data when (such as existing single cash pattern display card also has cash and credit card mixed mode display card) is repaiied
Change operation.
Finally it is worth mentioning that show that the display pattern of card is not limited to foregoing single cash pattern and cash
With credit card mixed mode (including cash credit mode card and credit card cash pattern), it can also be other display pattern examples
Such as single credit mode card.Furthermore show card data output channel be not limited to 1-4 be one group, 5-8 be another group, it can
To be that any number of (such as four) data output channels are designed to one group.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the technical spirit pair according to the present invention without departing from technical solution of the present invention content
Any simple modification, equivalent change and modification that above example is made, in the range of still falling within technical solution of the present invention.
Claims (9)
1. a kind of display control method of oil price board system, wherein the oil price board system include control card, multiple display cards with
And it is connected to multiple oil price board lamp plates of the multiple display card；Characterized in that, the display control side of the oil price board system
Method includes step：
(a) control card is sent oil price display data to the multiple display card in a manner of broadcast communication and stored, wherein
The oil price display data includes multigroup first kind oil price display data and multigroup Second Type oil price display data；
(b) the multiple display blocks respectively according in the oil price display data of the display pattern of oneself selection storage
Multigroup first kind oil price display data and/or multigroup Second Type oil price display data are exported to corresponding multiple oil
Valency board lamp plate is shown；And
(c) control card is returned according to the multiple display card of mailing address mapping table poll with obtaining the multiple display card
The oil price display data that is included in each described response data of multiple response datas and judging and the institute in the control card
Whether consistent state oil price display data；
When the oil price display data judging to include in one first response data in the multiple response data in step (c) with
The oil price display data in the control card is inconsistent, and whether the control card detects includes in first response data
There is oil price display data modification mark；
If including oil price display data modification mark in first response data, the control card is by first number of responses
The oil price display data included in is synchronized to the control card and changed by the control card by broadcast communication mode described
The oil price display data of multiple display card storages；And
If point-to-point communication side is not passed through comprising oil price display data modification mark, the control card in first response data
Formula modification returns to the oil price display data in the display card of first response data.
2. the display control method of oil price board system as claimed in claim 1, it is characterised in that the oil price display data is repaiied
Change and marked labeled as remote controller operation.
3. the display control method of oil price board system as claimed in claim 1, it is characterised in that the broadcast communication mode is
433MHZ frequency wireless RF broadcast communication modes.
4. the display control method of oil price board system as claimed in claim 1, it is characterised in that multigroup first kind oil
Valency display data is multigroup cash oil price display data, and multigroup Second Type oil price display data is multigroup credit card oil price
Display data.
5. the display control method of oil price board system as claimed in claim 1, it is characterised in that the multiple display card shows
Show that pattern differs.
6. the display control method of oil price board system as claimed in claim 5, it is characterised in that the display of each display card
Pattern is single cash pattern, single credit mode card or cash and credit card mixed mode.
7. the display control method of oil price board system as claimed in claim 1, it is characterised in that also including step：
The control card sets the display pattern of the multiple display card in a manner of twireless radio-frequency communication.
8. the display control method of oil price board system as claimed in claim 1, it is characterised in that the multiple display card and institute
The broadcast communication instruction that control card is completed not send the control card after pairing is stated to feed back.
9. a kind of display control method of oil price board system, wherein the oil price board system include control card, multiple display cards with
And it is connected to multiple oil price board lamp plates of the multiple display card；Characterized in that, the display control side of the oil price board system
Method includes step：
(i) control card is sent oil price display data to the multiple display card in a manner of broadcast communication and stored；
(ii) the multiple display card selects one kind or more in the oil price display data according to the display pattern of oneself respectively
Type oil price display data is exported to corresponding multiple oil price board lamp plates and shown；And
(iii) it is the multiple to obtain to send query statement in a manner of point-to-point communication to the multiple display card for the control card
The oil price display data and the control that multiple response datas and judging that display card returns include in each described response data
Whether the oil price display data in fabrication is consistent；
(iv) when the oil price for judging to include in one first response data in the multiple response data in step (iii) is shown
Data and the oil price display data in the control card are inconsistent, and the control card, which is detected in first response data, is
It is no to include oil price display data modification mark；
Include oil price display data modification mark in first response data if (v) detecting, the control card is by described in
The oil price display data included in first response data is synchronized to the control card and passes through broadcast communication side by the control card
The oil price display data of the multiple display card storage of formula modification；And
(vi) oil price display data modification mark is included if being not detected by first response data, the control card passes through
Point-to-point communication mode changes the oil price display data in the display card for returning to first response data.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511032126.8A CN105609083B (en) | 2015-12-31 | 2015-12-31 | A kind of display control method of oil price board system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511032126.8A CN105609083B (en) | 2015-12-31 | 2015-12-31 | A kind of display control method of oil price board system |
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| CN105609083A CN105609083A (en) | 2016-05-25 |
| CN105609083B true CN105609083B (en) | 2018-04-06 |
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| CN201511032126.8A Active CN105609083B (en) | 2015-12-31 | 2015-12-31 | A kind of display control method of oil price board system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500542A (en) * | 2013-09-26 | 2014-01-08 | 西安诺瓦电子科技有限公司 | Led lamp panel |
| CN103546738A (en) * | 2009-06-15 | 2014-01-29 | 索尼公司 | Receiving apparatus, transmitting apparatus, communication system, display control method |
| CN105094001A (en) * | 2015-03-13 | 2015-11-25 | 霍尼韦尔环境自控产品（天津）有限公司 | Controller, and method and device for replacing I/O port of controller |
| CN105206227A (en) * | 2015-10-15 | 2015-12-30 | 西安诺瓦电子科技有限公司 | Method for driving LED lamp panel and oil price board control card |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007304292A (en) * | 2006-05-10 | 2007-11-22 | Fujifilm Corp | Display device, display system, and display method |
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2015
- 2015-12-31 CN CN201511032126.8A patent/CN105609083B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103546738A (en) * | 2009-06-15 | 2014-01-29 | 索尼公司 | Receiving apparatus, transmitting apparatus, communication system, display control method |
| CN103500542A (en) * | 2013-09-26 | 2014-01-08 | 西安诺瓦电子科技有限公司 | Led lamp panel |
| CN105094001A (en) * | 2015-03-13 | 2015-11-25 | 霍尼韦尔环境自控产品（天津）有限公司 | Controller, and method and device for replacing I/O port of controller |
| CN105206227A (en) * | 2015-10-15 | 2015-12-30 | 西安诺瓦电子科技有限公司 | Method for driving LED lamp panel and oil price board control card |
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|---|---|
| CN105609083A (en) | 2016-05-25 |
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