CN207269272U - Dual data channels lamps and lanterns control decoder module - Google Patents
Dual data channels lamps and lanterns control decoder module Download PDFInfo
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- CN207269272U CN207269272U CN201721394907.6U CN201721394907U CN207269272U CN 207269272 U CN207269272 U CN 207269272U CN 201721394907 U CN201721394907 U CN 201721394907U CN 207269272 U CN207269272 U CN 207269272U
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Abstract
The utility model discloses a kind of dual data channels lamps and lanterns to control decoder module, and it is the dual data channels being made of a serial SPI data transmission channel and a parallel DMX512 data transmission channel that lamps and lanterns, which control the data channel between decoder module and controller,.The utility model uses twin-channel communications protocol pattern, and the data transmission channel of serial SPI mode and the data transmission channel of a parallel DMX512 mode are established between lamps and lanterns control decoder module and controller.Under dual channel mode, system stability when bad lamps and lanterns can be quickly investigated in debugging process so as to reduce cost of labor, and increasing normal communication in system operation.
Description
Technical field
It the utility model is related to LED lamp control field, more particularly to a kind of serial SPI modes and parallel DMX512 modes
Dual data channels lamps and lanterns control decoder module.
Background technology
In recent years, urban landscape brightening illumination is quickly grown, largely using the controllable LED lamp of various color changes.
Current most LED lamp uses the communication modes of serial SPI or parallel DMX512.
SPI is a kind of communication modes (as shown in Figure 1) of serial data displacement, and lamps and lanterns are serially connected in a data link,
Lamps and lanterns according to connection order auto-sequencing.The several data for every frame data bag foremost that each lamps and lanterns interception receives, then
By follow-up data transfer to next lamps and lanterns.As soon as if the lamps and lanterns damage in certain of this mode, then behind lamps and lanterns can not
Receive correct order data.
DMX512 agreements are to be developed into from console with standard digital to connect by USITT (theater technological associations of the U.S.) at first
The mode (as shown in Figure 2) of mouth control light modulator.DMX512 uses bus parallel connection mode, it is necessary to distributes a ground to each lamps and lanterns
Location code；Each frame data bag in lamps and lanterns detection bus, corresponding data are read according to the address code of oneself.But one large-scale
Project lamps and lanterns quantity it is thousands of, distribute an address code to each lamps and lanterns, this is a very cumbersome job.Bus
Mode in parallel, is not easy to influence other lamps and lanterns when some lamps and lanterns damages.But if it is that the communication interfaces of lamps and lanterns is damaged
Bad (such as interface and positive pole or earth short), it is likely that the signal transmission in bus can be interfered with, caused same
Lamps and lanterns in data link cannot all receive correct control command, and in this case it is difficult to which which lamps and lanterns navigates to is
It is bad, the cost of labor of maintenance is higher.
Utility model content
The utility model provides a kind of dual data channels lamps and lanterns control decoder module, can quickly be investigated in debugging process
Bad lamps and lanterns are so as to reducing cost of labor, and system stability when can increase normal communication.
To achieve the above object, the utility model provides a kind of dual data channels lamps and lanterns control decoder module, the lamps and lanterns
It is by serial a SPI data transmission channels and a parallel DMX512 to control the data channel between decoder module and controller
The dual data channels that data transmission channel is formed.
Wherein, under normal communication pattern, the controller is by the parallel DMX512 data transmission channels to described
Lamps and lanterns control decoder module sends data, and when the parallel DMX512 data transmission channels send mistake, the controller is cut
Change to serial SPI data transmission channels and data, the lamps and lanterns control decoder module inspection are sent to lamps and lanterns control decoder module
When not detecting parallel DMX512 data transmission channels data, the lamps and lanterns control decoder module switching is read SPI data transfers and is led to
The data in road.
Wherein, under debugging mode, the controller is controlled to lamps and lanterns by the serial SPI data transmission channels and decoded
Module assignment address code, controls decoder module to send control data by parallel DMX512 data transmission channels to lamps and lanterns, and examines
Lamps and lanterns are surveyed, when detecting that the lamps and lanterns occur abnormal, are investigated by the serial SPI data transmission channels transmission data bad
Reason.
Wherein, the controller is additionally operable to carry out lamps and lanterns by the control decoder module of the dual data channels and lamps and lanterns
Control and malfunction elimination, the control decoder module of the lamps and lanterns include：Input signal interface circuits, interface circuit of output signal,
And it is connected to the SPI control units between the input signal interface circuits, interface circuit of output signal and DMX512 controls
Unit, wherein, the SPI control units are electrically connected with DMX512 control units, and the SPI control units and DMX512 controls
Unit is electrically connected with the input signal interface circuits, interface circuit of output signal.
Wherein, under normal communication pattern, the controller is connect by the input signal interface circuits and output signal
Mouth circuit sends data by the parallel DMX512 data transmission channels to the lamps and lanterns, in the parallel DMX512 data transfers
When passage sends mistake, the controller is switched to serial SPI data transmission channels and sends data to the lamps and lanterns；
Under debugging mode, the controller is by the input signal interface circuits by the serial SPI data transfers
Passage distributes address code to lamps and lanterns, is sent out by the input signal interface circuits by parallel DMX512 data transmission channels to lamps and lanterns
Control data are sent, and lamps and lanterns are detected by interface circuit of output signal, when detecting that the lamps and lanterns occur abnormal, by described
Serial SPI data transmission channels send data investigation poor prognostic cause.
Compared with prior art, the utility model proposes dual data channels lamps and lanterns control decoder module, use is twin-channel
Communications protocol pattern, established between lamps and lanterns control decoder module and controller serial SPI mode data transmission channel and
The data transmission channel of one parallel DMX512 mode.Under dual channel mode, can quickly it be investigated not in debugging process
System stability when good lamps and lanterns increase normal communication so as to reduce cost of labor, and in system operation.
Brief description of the drawings
Fig. 1 is existing SPI communications schematic diagram；
Fig. 2 is existing DMX512 communications schematic diagram；
Fig. 3 is the utility model binary channels schematic diagram；
Fig. 4 is the structure diagram of the utility model lamps and lanterns control decoder module.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Embodiment
It should be appreciated that specific embodiment described herein is not used to limit this only to explain the utility model
Utility model.
Specifically, refer to shown in Fig. 3 and Fig. 4, Fig. 3 is the utility model binary channels schematic diagram；Fig. 4 is the utility model
Lamps and lanterns control the structure diagram of decoder module.
The utility model proposes a kind of dual data channels lamps and lanterns control decoder module, lamps and lanterns control decoder module with
Data channel between controller is by a serial SPI data transmission channel and a parallel DMX512 data transmission channel structure
Into dual data channels.
Under normal communication pattern, the controller is by the parallel DMX512 data transmission channels to the lamps and lanterns control
Decoder module processed sends data, and when the parallel DMX512 data transmission channels send mistake, the controller is switched to string
Row SPI data transmission channels send the lamps and lanterns control decoder module data, and the lamps and lanterns control decoder module can't detect
During parallel DMX512 data transmission channel data, the number of SPI data transmission channels is read in the lamps and lanterns control decoder module switching
According to.
Under debugging mode, the controller controls decoder module by the serial SPI data transmission channels to lamps and lanterns
Address code is distributed, controls decoder module to send control data to lamps and lanterns by parallel DMX512 data transmission channels, and detect lamp
Tool, when detecting that the lamps and lanterns occur abnormal, sends data by the serial SPI data transmission channels and investigates bad original
Cause.
In the present embodiment, the controller by the control decoder module of the dual data channels and lamps and lanterns to lamps and lanterns into
Row control and malfunction elimination, wherein, as shown in figure 4, the control decoder module of the lamps and lanterns includes：Input signal interface circuits,
Interface circuit of output signal, and the SPI controls being connected between the input signal interface circuits, interface circuit of output signal
Unit and DMX512 control units, wherein, the SPI control units are electrically connected with DMX512 control units, and the SPI is controlled
Unit and DMX512 control units are electrically connected with the input signal interface circuits, interface circuit of output signal, the SPI controls
Unit processed is used to parse the data that the serial SPI data transmission channels are sent, and the DMX512 control units are used to parse institute
State the data of DMX512 data transmission channels transmission；The input signal interface circuits pass through described in dual data channels connection
Controller, the lamps and lanterns control decoder module receive the control lamp of the controller transmission by the input signal interface circuits
The input signal of tool, the lamps and lanterns receive the control data of the controller transmission by the interface circuit of output signal, and
Carry out malfunction elimination.
Under normal communication pattern, the controller passes through the input signal interface circuits and interface circuit of output signal
Data are sent to lamps and lanterns control decoder module by the parallel DMX512 data transmission channels, in the parallel DMX512 numbers
When sending mistake according to transmission channel, the controller is switched to serial SPI data transmission channels and the lamps and lanterns is controlled with decoding mould
Block sends data, when the lamps and lanterns control decoder module can't detect parallel DMX512 data transmission channels data, the lamps and lanterns
Decoder module switching is controlled to read the data of SPI data transmission channels；
Under debugging mode, the controller is by the input signal interface circuits by the serial SPI data transfers
Passage distributes address code to lamps and lanterns, and lamps and lanterns control is given by parallel DMX512 data transmission channels by the input signal interface circuits
Decoder module processed sends control data, and detects lamps and lanterns by interface circuit of output signal, is detecting that it is different that the lamps and lanterns occur
Chang Shi, sends data by the serial SPI data transmission channels and investigates poor prognostic cause.
Compared with prior art, the utility model uses twin-channel communications protocol pattern, is built between controller and lamps and lanterns
The data transmission channel of a vertical serial SPI mode and the data transmission channel of a parallel DMX512 mode.Binary channels mould
Under formula, bad lamps and lanterns can be quickly investigated in debugging process so as to reduce cost of labor, and system is steady during increase normal communication
It is qualitative.
The process flow under two kinds of operating modes of the utility model dual data channels lamp controller is carried out below detailed
It is thin to illustrate：
Pattern one (debugging mode)：
A, as shown in figure 3, controller is distributed by input signal interface circuits by serial SPI data transmission channels to lamps and lanterns
Address code；
B, as shown in figure 4, controller by input signal interface circuits by parallel DMX512 data transmission channels to lamps and lanterns
Control data (content changes including style) are sent, detecting lamps and lanterns by interface circuit of output signal, (lamps and lanterns show corresponding flower
Sample changes)；
If C, lamps and lanterns are shown incorrect, data are sent by serial SPI passages and investigate poor prognostic cause, lamps and lanterns are carried out
Maintenance, return to step A.
Pattern two (normal communication pattern)：
A, under normal mode, parallel DMX512 data transfers are preferentially read as shown in Figure 3 and Figure 4, on input signal circuit
Channel data；
B, controller sends number by signal output interface circuit by parallel DMX512 data transmission channels to lamps and lanterns
According to；
C, when mistake occurs on parallel DMX512 data transmission channels, serial SPI data are automatically switched to inside controller
Transmission channel sends data；
D, when lamps and lanterns can't detect the data on parallel DMX512 data transmission channels, switching is read SPI data transfers and is led to
The data in road.
The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention,
Every equivalent structure made based on the specification and figures of the utility model or flow conversion, are directly or indirectly used in
Other relevant technical fields, are equally included in the patent within the scope of the utility model.
Claims (4)
1. a kind of dual data channels lamps and lanterns control decoder module, it is characterised in that the lamps and lanterns control decoder module and controller
Between data channel be by a serial SPI data transmission channel and a parallel DMX512 data transmission channel form pair
Data channel.
2. dual data channels lamps and lanterns according to claim 1 control decoder module, it is characterised in that in normal communication pattern
Under, the controller controls decoder module to send data the lamps and lanterns by the parallel DMX512 data transmission channels,
When the parallel DMX512 data transmission channels send mistake, the controller is switched to serial SPI data transmission channels to institute
State lamps and lanterns control decoder module and send data, the lamps and lanterns control decoder module can't detect parallel DMX512 data transmission channels
During data, the data of SPI data transmission channels are read in the lamps and lanterns control decoder module switching.
3. dual data channels lamps and lanterns according to claim 2 control decoder module, it is characterised in that under debugging mode,
The lamps and lanterns control decoder module distributes address by the serial SPI data transmission channels between the controller to lamps and lanterns
Code, controls decoder module to send control data by parallel DMX512 data transmission channels to lamps and lanterns, and detects lamps and lanterns, is detecting
When occurring abnormal to the lamps and lanterns, data are sent by the serial SPI data transmission channels and investigate poor prognostic cause.
4. dual data channels lamps and lanterns according to claim 3 control decoder module, it is characterised in that the lamps and lanterns control solution
Code module be additionally operable to by the controller and between the dual data channels lamps and lanterns are controlled and malfunction elimination, the lamp
The control decoder module of tool includes：Input signal interface circuits, interface circuit of output signal, and it is connected to the input signal
SPI control units and DMX512 control units between interface circuit, interface circuit of output signal, wherein, the SPI controls are single
Member is electrically connected with DMX512 control units, and the SPI control units and DMX512 control units connect with the input signal
Mouth circuit, interface circuit of output signal are electrically connected, and under normal communication pattern, the controller passes through the input signal interface
Circuit sends data by the parallel DMX512 data transmission channels to lamps and lanterns control decoder module, described parallel
When DMX512 data transmission channels send mistake, the controller is switched to serial SPI data transmission channels and the lamps and lanterns is sent out
Data are sent, the input signal interface circuits of the lamps and lanterns control decoder module can't detect parallel DMX512 data transfers and lead to
During track data, the lamps and lanterns control decoder module obtains the input signal interface circuits switching and reads SPI data transmission channels
Data；
Under debugging mode, the controller is by the input signal interface circuits by the serial SPI data transmission channels
Lamps and lanterns control decoder module distribution address code is given, by the input signal interface circuits by parallel DMX512 data transmission channels
Control data are sent to lamps and lanterns control decoder module, and lamps and lanterns are detected by interface circuit of output signal, are detecting the lamp
When tool occurs abnormal, data are sent by the serial SPI data transmission channels and investigate poor prognostic cause.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721394907.6U CN207269272U (en) | 2017-10-26 | 2017-10-26 | Dual data channels lamps and lanterns control decoder module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721394907.6U CN207269272U (en) | 2017-10-26 | 2017-10-26 | Dual data channels lamps and lanterns control decoder module |
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| CN207269272U true CN207269272U (en) | 2018-04-24 |
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| CN201721394907.6U Active CN207269272U (en) | 2017-10-26 | 2017-10-26 | Dual data channels lamps and lanterns control decoder module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114758629A (en) * | 2022-06-16 | 2022-07-15 | 惠科股份有限公司 | Backlight module and lighting method thereof |
-
2017
- 2017-10-26 CN CN201721394907.6U patent/CN207269272U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114758629A (en) * | 2022-06-16 | 2022-07-15 | 惠科股份有限公司 | Backlight module and lighting method thereof |
| US11915662B2 (en) | 2022-06-16 | 2024-02-27 | HKC Corporation Limited | Backlight module of display and lighting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180712 Address after: 518000, 3 floor of No. 2 factory, crane Chau Industrial Park, crane community, Baoan District City, Shenzhen, Guangdong. Patentee after: Shenzhen Lei Fei Lighting Technology Co., Ltd. Address before: 518000 Jinshan Pavilion, Hai Hui building, Nanshan District, Guangdong Province, Shenzhen, Guangdong, 7D Patentee before: SHENZHEN LEIMAI LIGHTING TECHNOLOGY CO., LTD. |
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| TR01 | Transfer of patent right |