CN108510935B - Mining LED information display control circuit - Google Patents
Mining LED information display control circuit Download PDFInfo
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- CN108510935B CN108510935B CN201810546590.6A CN201810546590A CN108510935B CN 108510935 B CN108510935 B CN 108510935B CN 201810546590 A CN201810546590 A CN 201810546590A CN 108510935 B CN108510935 B CN 108510935B
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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
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Physics & Mathematics (AREA)
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- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
The invention discloses a mining LED information display control circuit which comprises a communication receiving module, a central processing control driving module, a power module, a static display module and a dynamic display module, wherein the power module provides power output, and the central processing control driving module finishes the processing, the output and the control of information and drives the static display module and the dynamic display module. The mining LED information display control circuit can provide stable current for LEDs, simultaneously control hundreds of LED lamps to display, finally realize the function of information display, and is suitable for the fields of LED driving circuits and control circuits thereof.
Description
Technical Field
The invention relates to the field of information display control systems, in particular to a mining LED information display control circuit.
Background
The mining LED information display panel is designed to facilitate information transmission in the underground with complex electromagnetic environment. Most mine electromechanical systems are subjected to electromagnetic interference during operation, so that the working state of the electromechanical systems is affected, program errors are even induced, information is conveyed wrongly, and unnecessary risks and accidents are caused.
At present, most underground display devices use a liquid crystal display screen suitable for PLC, and a large number of LED lamps are used for displaying, so that the problem of display content disorder caused by electromagnetic interference of the liquid crystal display screen can be effectively replaced.
Therefore, the design of the LED information display panel for the mine is particularly important, so that the safety of information transmission under the mine is realized.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the mining LED information display control circuit which can provide stable current for LEDs and simultaneously control hundreds of LEDs to display, so that the information display function is finally realized.
In order to achieve the above object, the technical scheme adopted for solving the technical problems is as follows:
the mining LED information display control circuit comprises a communication receiving module, a central processing control driving module, a power module, a static display module and a dynamic display module, wherein:
the input end of the communication receiving module is connected with the peripheral upper computer and is used for receiving the data information of the peripheral upper computer and transmitting the data information to the central processing control driving module after simple voltage stabilization filtering;
the input end of the central processing control driving module is connected with the output end of the communication receiving module and is used for classifying a group of data of the data information received from the communication receiving module and then respectively transmitting the classified data to the dynamic display module and the static display module for display;
the input end of the dynamic display module is directly connected with the output end of the central processing control driving module and is used for displaying the changed data information in real time;
the input end of the static display module is connected with the output end of the central processing control driving module and is used for carrying out static display on the received data information of the central processing control driving module;
the output end of the power module is respectively connected with the input ends of the communication receiving module, the central processing control driving module, the static display module and the dynamic display module, and is used for providing the working voltage of each module to reach the preset voltage.
Further, the central processing control driving module comprises a central processor unit, a storage unit, a code adjusting unit, a control unit, a first driving unit and a second driving unit, wherein:
the input end of the central processing unit is connected with the output ends of the communication receiving module, the storage unit and the code adjusting unit, the output end of the central processing unit is connected with the input ends of the first driving unit and the control unit, and the central processing unit is used for distinguishing and processing the data information received from the communication receiving module, transmitting the data required to be displayed by the dynamic display module to the first driving unit and transmitting other data to the control unit;
the output end of the storage unit is connected with the input end of the central processing unit and is used for continuously updating and storing the data information received from the communication receiving module and recovering the panel display in time after the information panel is interfered;
the output end of the code adjusting unit is connected with the input end of the central processing unit, and the code adjusting unit is provided with a code adjusting switch for adjusting the code reporting frequency of the central processing unit;
the input end of the control unit is connected with the central processing unit, the output end of the control unit is connected with the second driving unit, and the control unit is used for subdividing other data received from the central processing unit and respectively transmitting the subdivided data to each driving module in the second driving unit;
the input end of the first driving unit is connected with the output end of the central processing unit, and the output end of the first driving unit is connected with the dynamic display module and is used for directly controlling the central processing unit to continuously update and change the received data and transmitting the data to the dynamic display module;
the input end of the second driving unit is connected with the output end of the controller unit, and the output end of the second driving unit is connected with the static display module and is used for transmitting other data received from the control unit to the static display module.
Preferably, the central processor unit employs an MSP430F149 type central processor element.
Preferably, the memory cell is a K24C02 type memory element.
Preferably, the control unit adopts a CPLD type control chip, and the model of the control chip is EPM570T144C05N.
Preferably, the same driving element is used for the first driving unit and the second driving unit, and the driving element model is 74HC573.
Further, 8 pins in the EPM570T144C05N type control chip are connected to 8-bit data input pins in all the 74HC573 type driving elements in the second driving unit, and latch control pins of each 74HC573 type driving element in the second driving unit are respectively connected to the EPM570T144C05N type control chip.
Further, the dynamic display module comprises a first nixie tube display unit, wherein the first nixie tube display unit is connected with the first driving unit and is composed of three 1-bit nixie tubes and used for displaying signal codes and other numbers.
Further, the static display module comprises a second nixie tube display unit and an LED display unit, wherein:
the input end of the second nixie tube display unit is connected with the output end of the second driving unit, and the second nixie tube display unit consists of a group of 3-bit nixie tubes and a group of 5-bit nixie tubes and is used for directly displaying the speed and the horizontal position;
the input end of the LED display unit is connected with the output end of the second driving unit and is used for matching with information on the panel to enable the LED lamps at different positions to be on or off to express different meanings.
Compared with the prior art, the invention has the following advantages and positive effects due to the adoption of the technical scheme:
the invention provides a mining LED information display control circuit which can provide stable current for LEDs and simultaneously control hundreds of LEDs to display, thereby finally realizing the function of information display. The design circuit effectively solves the simple control of independently turning on and off the multiple LEDs, effectively filters and stabilizes the voltage of the circuit through each circuit module and the communication receiving module, can quickly recover without deviation after electromagnetic interference occurs, and provides a new idea for underground display facilities and an effective control method for multi-display and multi-pin port control. Under the abominable dim environment under the mine, can provide stable electric current for the LED to use the form of LED pilot lamp to show with numerous complicated information, be applicable to LED drive circuit and control circuit field.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the invention and that other drawings may be obtained from these drawings by those skilled in the art without inventive effort. In the accompanying drawings:
FIG. 1 is a system block diagram of a mining LED information display control circuit of the present invention;
FIG. 2 is a flow chart of a subunit of a central processing control drive module in a mining LED information display control circuit according to the present invention;
fig. 3 is a flow chart of the relationship of all module subunits in the mining LED information display control circuit of the present invention.
Detailed Description
The following description and the discussion of the embodiments of the present invention will be made more complete and less in view of the accompanying drawings, in which it is to be understood that the invention is not limited to the embodiments of the invention disclosed and that it is intended to cover all such modifications as fall within the scope of the invention.
The application designs a mining LED information display control circuit, belongs to the technical field of LED control circuit design, and the purpose can provide stable current for LED under the abominable dim environment under the mine to use the form of LED pilot lamp to show with numerous complicated information.
As shown in fig. 1, this embodiment discloses a mining LED information display control circuit, which includes a communication receiving module, a central processing control driving module, a power module, a static display module and a dynamic display module, wherein:
the input end of the communication receiving module is connected with the peripheral upper computer and is used for receiving the data information of the peripheral upper computer in a 485 communication mode and transmitting the data information to the central processing control driving module after simple voltage stabilizing filtering;
the input end of the central processing control driving module is connected with the output end of the communication receiving module and is used for classifying a group of data of the data information received from the communication receiving module and then respectively transmitting the classified data to the dynamic display module and the static display module for display;
the input end of the dynamic display module is directly connected with the output end of the central processing control driving module and is used for displaying the changed data information in real time;
the input end of the static display module is connected with the output end of the central processing control driving module and is used for carrying out static display on the received data information of the central processing control driving module;
the output end of the power module is respectively connected with the input ends of the communication receiving module, the central processing control driving module, the static display module and the dynamic display module, and is used for providing the working voltage of each module to reach the preset voltage. In this embodiment, the power module uses the EMI suppression circuit to control the voltage stabilization and output of the current, and keeps stable to ensure output and power supply for other modules.
Fig. 2 is a flow chart of a subunit of the central processing control driving module provided by the present invention, and the core module is the central processing control driving module. The central processing control driving module comprises a central processor unit, a storage unit, a code adjusting unit, a control unit, a first driving unit and a second driving unit, wherein:
the input end of the central processing unit is connected with the output ends of the communication receiving module, the storage unit and the code adjusting unit, the output end of the central processing unit is connected with the input ends of the first driving unit and the control unit, and the central processing unit is used for distinguishing and processing the data information received from the communication receiving module, transmitting the data required to be displayed by the dynamic display module to the first driving unit and transmitting other data to the control unit;
the output end of the storage unit is connected with the input end of the central processing unit and is used for continuously updating and storing the data information received from the communication receiving module and recovering the panel display in time after the information panel is interfered;
the output end of the code adjusting unit is connected with the input end of the central processing unit, and the code adjusting unit is provided with a code adjusting switch for adjusting the code reporting frequency of the central processing unit;
the input end of the control unit is connected with the central processing unit, the output end of the control unit is connected with the second driving unit, and the control unit is used for subdividing other data received from the central processing unit and respectively transmitting the subdivided data to each driving module in the second driving unit;
the input end of the first driving unit is connected with the output end of the central processing unit, and the output end of the first driving unit is connected with the dynamic display module and is used for directly controlling the central processing unit to continuously update and change the received data and transmitting the data to the dynamic display module;
the input end of the second driving unit is connected with the output end of the controller unit, and the output end of the second driving unit is connected with the static display module and is used for transmitting other data received from the control unit to the static display module.
Preferably, the central processor unit employs an MSP430F149 type central processor element.
Preferably, the memory cell is a K24C02 type memory element.
Preferably, the control unit adopts a CPLD type control chip, and the model of the control chip is EPM570T144C05N.
Preferably, the same driving element is used for the first driving unit and the second driving unit, and the driving element model is 74HC573.
Further, 8 pins in the EPM570T144C 05N-type control chip are connected to 8-bit data input pins in all the 74HC 573-type driving elements in the second driving unit, and latch control pins of each 74HC 573-type driving element in the second driving unit are respectively connected to the EPM570T144C 05N-type control chip. The 74HC573 type driving element in the second driving unit not only plays a control role after being connected with the LEDs, but also solves the problem that the direct power supply of the LEDs by using the EPM570T144C05N type control chip can cause insufficient power supply and influence brightness.
With continued reference to fig. 3, the dynamic display module includes a first nixie tube display unit, where the first nixie tube display unit is connected with the first driving unit and is composed of three 1-bit nixie tubes, and is used for displaying signal codes and other numbers. The static display module comprises a second nixie tube display unit and an LED display unit, wherein the input end of the second nixie tube display unit is connected with the output end of the second driving unit, and the second nixie tube display unit consists of a group of 3-bit nixie tubes and a group of 5-bit nixie tubes and is used for directly displaying the speed and the horizontal position; the input end of the LED display unit is connected with the output end of the second driving unit and is used for matching with information on the panel to enable the LED lamps at different positions to be on or off to express different meanings.
The 74HC573 type driving element in the first driving unit is connected with the first nixie tube display unit and is used for convenient control and driving.
The specific working principle is as follows:
the communication receiving module receives information from the PLC upper computer, the adopted circuit design is 485 communication circuit design commonly used by the PLC, then the received information is reasonably processed and filtered, and then the information is transmitted to the central processing unit, and the central processing unit screens and classifies the received data. The central processing unit distinguishes and processes the processed data, wherein the processing should follow the message and report protocol of MODBUS-RTU. The received data is divided into a transmission address and transmission data. And then transmitting the received data to the area to be displayed according to the corresponding address. The data which is needed to be displayed by the dynamic display module for the address bits is transmitted to the 74HC573 type driving chip of the first driving unit. The code frequency of the received data can be adjusted by the code adjusting module, and the received data can be timely transmitted to a K24C02 type storage element in the storage unit for storage, so that the LED information display panel can be timely recovered after being interfered. After finishing the information, the central processing unit transmits each group of addresses and information to an EPM570T144C05N type control chip of the control unit, the control chip identifies each group of data, and then converts each group of data into a level signal and transmits the level signal to a corresponding 74HC573 type driving chip, wherein the control mode is as follows: the level signal is transmitted to the 8 pin input ends of the 74HC573 type driving chip, and then the 74HC573 type chip which selects and opens the correct address is controlled to output the level to control the on and off of the corresponding LED lamp.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (6)
1. The mining LED information display control circuit is characterized by comprising a communication receiving module, a central processing control driving module, a power module, a static display module and a dynamic display module, wherein:
the input end of the communication receiving module is connected with the peripheral upper computer and is used for receiving the data information of the peripheral upper computer, stabilizing and filtering the data information and then transmitting the data information to the central processing control driving module;
the input end of the central processing control driving module is connected with the output end of the communication receiving module and is used for classifying a group of data of the data information received from the communication receiving module and then respectively transmitting the classified data to the dynamic display module and the static display module for display;
the central processing control driving module comprises a central processor unit, a storage unit, a code adjusting unit, a control unit, a first driving unit and a second driving unit, wherein:
the input end of the central processing unit is connected with the output ends of the communication receiving module, the storage unit and the code adjusting unit, the output end of the central processing unit is connected with the input ends of the first driving unit and the control unit, and the central processing unit is used for distinguishing and processing the data information received from the communication receiving module, transmitting the data required to be displayed by the dynamic display module to the first driving unit and transmitting other data to the control unit;
the output end of the storage unit is connected with the input end of the central processing unit and is used for continuously updating and storing the data information received from the communication receiving module and recovering the panel display in time after the information panel is interfered;
the output end of the code adjusting unit is connected with the input end of the central processing unit, and the code adjusting unit is provided with a code adjusting switch for adjusting the code reporting frequency of the central processing unit;
the input end of the control unit is connected with the central processing unit, the output end of the control unit is connected with the second driving unit, and the control unit is used for subdividing other data received from the central processing unit and respectively transmitting the subdivided data to each driving module in the second driving unit;
the input end of the first driving unit is connected with the output end of the central processing unit, and the output end of the first driving unit is connected with the dynamic display module and is used for directly controlling the central processing unit to continuously update and change the received data and transmitting the data to the dynamic display module;
the input end of the second driving unit is connected with the output end of the control unit, and the output end of the second driving unit is connected with the static display module and is used for transmitting other data received from the control unit to the static display module;
the input end of the dynamic display module is directly connected with the output end of the central processing control driving module and is used for displaying the changed data information in real time;
the dynamic display module comprises a first nixie tube display unit, wherein the first nixie tube display unit is connected with the first driving unit and is composed of three 1-bit nixie tubes and used for displaying signal codes and other numbers;
the input end of the static display module is connected with the output end of the central processing control driving module and is used for carrying out static display on the received data information of the central processing control driving module;
the static display module comprises a second nixie tube display unit and an LED display unit, wherein:
the input end of the second nixie tube display unit is connected with the output end of the second driving unit, and the second nixie tube display unit consists of a group of 3-bit nixie tubes and a group of 5-bit nixie tubes and is used for directly displaying the speed and the horizontal position;
the input end of the LED display unit is connected with the output end of the second driving unit and is used for matching with information on the panel to enable the LED lamps at different positions to be on or off to express different meanings;
the output end of the power module is respectively connected with the input ends of the communication receiving module, the central processing control driving module, the static display module and the dynamic display module, and is used for providing the working voltage of each module to reach the preset voltage.
2. The mining LED information display control circuit of claim 1, wherein the cpu unit is an MSP430F149 cpu.
3. The mining LED information display control circuit according to claim 1, wherein the memory unit is a K24C02 type memory element.
4. The mining LED information display control circuit according to claim 1, wherein the control unit adopts a CPLD type control chip, and the model of the control chip is EPM570T144C05N.
5. The mining LED information display control circuit of claim 4, wherein the same driving element is used for the first driving unit and the second driving unit, and the driving element model is 74HC573.
6. The mining LED information display control circuit of claim 5, wherein 8 pins of the EPM570T144C 05N-type control chip are connected to 8-bit data input pins of all 74HC 573-type driving elements of the second driving unit, and latch control pins of each 74HC 573-type driving element of the second driving unit are respectively connected to the EPM570T144C 05N-type control chip.
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| CN201810546590.6A CN108510935B (en) | 2018-05-30 | 2018-05-30 | Mining LED information display control circuit |
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| CN201810546590.6A CN108510935B (en) | 2018-05-30 | 2018-05-30 | Mining LED information display control circuit |
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| Publication number | Publication date |
|---|---|
| CN108510935A (en) | 2018-09-07 |
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