CN108510935A - A kind of mining LED presentation of information control circuit - Google Patents

Abstract

The invention discloses a kind of mining LED presentation of information control circuits, including communication receipt module, central processing control drive module, power module, static status display module and dynamic display module, power module provides power supply output, central processing controls processing, output and control of the drive module completion to information, and drives static status display module and dynamic display module.A kind of mining LED presentation of information control circuit of the present invention can provide stable electric current for LED, and at the same time hundreds of LED light of control are shown, the final function of realizing presentation of information is suitable for LED drive circuit and its control circuit field.

Description

A mining LED information display control circuit

technical field

The invention relates to the field of information display control systems, in particular to a mining LED information display control circuit.

Background technique

The LED information display board for mining is designed to facilitate the transmission of information underground in complex electromagnetic environments. Because most of the mine electromechanical systems are subjected to electromagnetic interference during operation, which affects the working status of the electromechanical system, and even induces program errors, resulting in incorrect information transmission, resulting in unnecessary dangers and accidents.

At present, most of the underground display devices use liquid crystal display screens suitable for PLC, and the use of a large number of LED lights for display can effectively replace the problem of disordered display content caused by electromagnetic interference on liquid crystal display screens.

Therefore, it is particularly important to design a mining LED information display board, so as to realize the safety of information transmission in mines.

Contents of the invention

In order to overcome the deficiencies in the prior art, the present invention provides a mine-used LED information display control circuit, which can provide stable current for LEDs, and simultaneously control hundreds of LED displays to finally realize the function of information display.

In order to achieve the above-mentioned purpose of the invention, the technical solution adopted to solve the technical problems is as follows:

A mining LED information display control circuit, including a communication receiving module, a central processing control driving module, a power supply module, a static display module and a dynamic display module, wherein:

The input terminal of the communication receiving module is connected with the peripheral host computer, and is used to receive the data information of the peripheral host computer and transmit it to the central processing control drive module after simple voltage stabilization and filtering;

The input end of the central processing control drive module is connected to the output end of the communication receiving module, and is used to classify the data information received from the communication receiving module in groups and then transmit the classified data to the The dynamic display module and the static display module display;

The input end of the dynamic display module is directly connected with the output end of the central processing control drive module, and is used for real-time display of changing data information;

The input terminal of the static display module is connected to the output terminal of the central processing control driving module, and is used to statically display the received data information of the central processing control driving module;

The output terminals of the power supply module are respectively connected with the input terminals of the communication receiving module, the central processing control driving module, the static display module and the dynamic display module, and are used to provide the working voltages of the above-mentioned modules to reach a preset voltage.

Further, the central processing control driving module includes a central processing unit, a storage unit, a coding unit, a control unit, a first driving unit and a second driving unit, wherein:

The input end of the central processing unit is connected to the output end of the communication receiving module, the storage unit and the code modulation unit, and its output end is connected to the input end of the first drive unit and the control unit for distinguish and process the data information received from the communication receiving module, and transmit the data to be displayed by the dynamic display module to the first drive unit, and transmit other data to the control unit;

The output end of the storage unit is connected to 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 displaying on the information board after the information board is disturbed timely recovery;

The output end of the code modulation unit is connected to the input end of the central processing unit, and the code modulation unit is configured with a code modulation switch for adjusting the reporting frequency of the central processing unit;

The input end of the control unit is connected with the central processing unit, and the output end is connected with the second driving unit, which is used to subdivide other data received from the central processing unit and transmit them respectively to each drive module in the second drive unit;

The input end of the first drive unit is connected to the output end of the central processing unit, and its output end is connected to the dynamic display module, which is used to directly control and continuously update and change the received information received by the central processing unit. data and transmit it to the dynamic display module;

The input end of the second drive unit is connected to the output end of the controller unit, and the output end is connected to the static display module, for transmitting other data received from the control unit to the static display module. Display modules.

Preferably, the central processing unit adopts MSP430F149 central processing unit.

Preferably, the storage unit is a K24C02 type storage element.

Preferably, the control unit adopts a CPLD type control chip, and the model of the control chip is EPM570T144C05N.

Preferably, the first driving unit and the second driving unit use the same driving element, and the model of the driving element is 74HC573.

Further, the 8 pins in the EPM570T144C05N type control chip are connected to the 8-bit data input pins in all 74HC573 type drive elements in the second drive unit, and each 74HC573 in the second drive unit The latch control pins of the drive element are respectively connected with the EPM570T144C05N control chip.

Further, the dynamic display module includes a first nixie tube display unit, which is connected to the first drive unit and consists of three 1-bit nixie tubes for displaying signal coding and other number.

Further, the static display module includes a second digital tube display unit and an LED display unit, wherein:

The input terminals of the second digital tube display unit are all connected to the output terminals of the second drive unit, and the second digital tube display unit is composed of a group of 3-digit digital tubes and a group of 5-digit digital tubes. for direct display of speed and horizontal position;

The input end of the LED display unit is connected with the output end of the second drive unit, and is used to match the information on the panel to make the LED lights at different positions turn on and off to express different meanings.

Compared with the prior art, the present invention has the following advantages and positive effects due to the adoption of the above technical solutions:

The invention provides a mine-used LED information display control circuit, which can provide stable current for LEDs, and simultaneously control hundreds of LED displays to finally realize the function of information display. This design circuit effectively solves the simple control of multiple LEDs being turned on and off individually, effectively filters and stabilizes the voltage of the circuit through each circuit module and communication receiving module, and can quickly recover without deviation after electromagnetic interference occurs. It not only provides a new idea for display facilities in mines, but also provides an effective control method for multi-display and multi-pin port control. In the harsh dark environment under the mine, it can provide a stable current for the LED, and display a lot of complicated information in the form of LED indicators, which is suitable for the field of LED drive circuits and their control circuits.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to these drawings without creative work. In the attached picture:

Fig. 1 is a system block diagram of a mining LED information display control circuit of the present invention;

Fig. 2 is a subunit flow chart of the central processing control drive module in a mining LED information display control circuit of the present invention;

Fig. 3 is a flow chart of the relationship between all module subunits in a mining LED information display control circuit of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all examples. Based on the present invention All other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

This application designs a LED information display control circuit for mining, which belongs to the technical field of LED control circuit design. It is displayed in the form of lights.

As shown in Figure 1, this embodiment discloses a mining LED information display control circuit, including a communication receiving module, a central processing control drive module, a power supply module, a static display module and a dynamic display module, wherein:

The input terminal of the communication receiving module is connected with the peripheral host computer, and is used to receive the data information of the peripheral host computer by means of 485 communication and transmit it to the central processing control drive module after simple voltage stabilization and filtering;

The input end of the central processing control drive module is connected to the output end of the communication receiving module, and is used to classify the data information received from the communication receiving module in groups and then transmit the classified data to the The dynamic display module and the static display module display;

The input end of the dynamic display module is directly connected with the output end of the central processing control drive module, and is used for real-time display of changing data information;

The input terminal of the static display module is connected to the output terminal of the central processing control driving module, and is used to statically display the received data information of the central processing control driving module;

The output terminals of the power supply module are respectively connected with the input terminals of the communication receiving module, the central processing control driving module, the static display module and the dynamic display module, and are used to provide the working voltages of the above-mentioned modules to reach a preset voltage. In this embodiment, the power supply module uses an EMI suppression circuit to control the voltage regulation and output of the current, so as to ensure stable output and power supply for other modules.

FIG. 2 is a flow chart of the subunits 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 includes a central processing unit, a storage unit, a coding unit, a control unit, a first driving unit and a second driving unit, wherein:

The input end of the central processing unit is connected to the output end of the communication receiving module, the storage unit and the code modulation unit, and its output end is connected to the input end of the first drive unit and the control unit for distinguish and process the data information received from the communication receiving module, and transmit the data to be displayed by the dynamic display module to the first drive unit, and transmit other data to the control unit;

The output end of the storage unit is connected to 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 displaying on the information board after the information board is disturbed timely recovery;

The output end of the code modulation unit is connected to the input end of the central processing unit, and the code modulation unit is configured with a code modulation switch for adjusting the reporting frequency of the central processing unit;

The input end of the control unit is connected with the central processing unit, and the output end is connected with the second driving unit, which is used to subdivide other data received from the central processing unit and transmit them respectively to each drive module in the second drive unit;

The input end of the first drive unit is connected to the output end of the central processing unit, and its output end is connected to the dynamic display module, which is used to directly control and continuously update and change the received information received by the central processing unit. data and transmit it to the dynamic display module;

The input end of the second drive unit is connected to the output end of the controller unit, and the output end is connected to the static display module, for transmitting other data received from the control unit to the static display module. Display modules.

Preferably, the central processing unit adopts MSP430F149 central processing unit.

Preferably, the storage unit is a K24C02 type storage element.

Preferably, the control unit adopts a CPLD type control chip, and the model of the control chip is EPM570T144C05N.

Preferably, the first driving unit and the second driving unit use the same driving element, and the model of the driving element is 74HC573.

Further, the 8 pins in the EPM570T144C05N type control chip are connected to the 8-bit data input pins in all 74HC573 type drive elements in the second drive unit, and each 74HC573 in the second drive unit The latch control pins of the type drive element are respectively connected with the EPM570T144C05N type control chip. In this circuit, the connection mode of the EPM570T144C05N type control chip and the 74HC573 type drive element can greatly save the output pins of the chip and save Simplify the wiring in the hardware circuit. The 74HC573 drive element in the second drive unit not only plays a control role after being connected to the LED, but also solves the problem that the use of the EPM570T144C05N control chip to directly supply power to the LED will cause insufficient power supply and affect the brightness.

Continue to refer to Fig. 3, described dynamic display module comprises the first nixie tube display unit, and described first nixie tube display unit is connected with described first driving unit, and is made up of three 1-digit nixie tubes, is used for displaying signal coding and other numbers. The static display module includes a second digital tube display unit and an LED display unit, the input terminals of the second digital tube display unit are connected to the output terminals of the second drive unit, and the second digital tube display unit It consists of a set of 3-digit digital tubes and a set of 5-digit digital tubes, which are used to directly display the speed and horizontal position; the input end of the LED display unit is connected with the output end of the second drive unit, and is used to match the panel The information on the screen makes the LED lights in different positions turn on and off to express different meanings.

Wherein, the 74HC573 driving element in the first driving unit is connected with the first nixie tube display unit for convenient control and driving.

Specific working principle:

The communication receiving module receives the information from the PLC upper computer. The circuit design adopted is the 485 communication circuit design commonly used in PLC, and then the received information is processed and filtered reasonably, and then transmitted to the central processing unit. The processor unit screens and sorts the received data. The central processor unit will distinguish and process the processed data, and the processing should follow the MODBUS-RTU message protocol. The received data is divided into transmission address and transmission data. Then transmit the received data to the lot that needs to be displayed according to its corresponding address. For the address bits, the data displayed by the dynamic display module is transmitted to the 74HC573 driver chip of the first driver unit. The code frequency of the received data can be adjusted by the code modulation module, and the received data will be transmitted to the K24C02 storage element in the storage unit for storage, so that the LED information display board can be restored in time after being disturbed. After sorting out the information, the central processing unit transmits each group of addresses and information to the EPM570T144C05N control chip of the control unit. The control chip identifies each group of data, and then converts each group of data into level signals and transmits them to The corresponding 74HC573 driver chip, its control method is: first transmit the level signal to the 8 pin input terminals of the 74HC573 driver chip, and then control and select the 74HC573 chip with the correct address to control the level output to control the corresponding LED light. On and off.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (9)

1. a kind of mining LED presentation of information control circuit, which is characterized in that driven including communication receipt module, central processing control Dynamic model block, power module, static status display module and dynamic display module, wherein：

The input terminal of the communication receipt module is connected with the host computer of periphery, the data information for receiving peripheral host computer And it is transferred to the central processing control drive module after carrying out simple voltage regulation filtering；

Central processing control drive module input terminal is connected with the output end of the communication receipt module, is used for from institute It states one group of group data classification of data information progress that communication receipt module receives and the data classified is transferred to institute respectively again It states dynamic display module and static status display module is shown；

The output end that the input terminal of the dynamic display module directly controls drive module with the central processing is connected, and is used for The data information of real-time display variation；

The output end that the input terminal of the static status display module controls drive module with the central processing is connected, for that will connect The data information of the central processing control drive module received carries out static status display；

The output end of the power module controls drive module, static status display with the communication receipt module, central processing respectively Module is connected with the input terminal of dynamic display module, and the operating voltage for providing above-mentioned each module reaches preset electricity Pressure.

2. a kind of mining LED presentation of information control circuit according to claim 1, which is characterized in that the central processing Control drive module includes central processor unit, storage unit, adjusts code unit, control unit, the first driving unit and second Driving unit, wherein：

The input terminal of the central processor unit and the communication receipt module, storage unit and the output end phase for adjusting code unit Connection, output end is connected with the input terminal of first driving unit and control unit, is used for from the communications reception The data information that module receives is distinguished and is handled, and the data shown by the dynamic display module will be needed to be transferred to Other data are transferred to described control unit by first driving unit；

The output end of the storage unit is connected with the input terminal of the central processor unit, for being connect from the communication Receive the data information that receives of module constantly updated and stored and after information board is interfered plate face show it is timely extensive It is multiple；

The output end for adjusting code unit is connected with the input terminal of the central processor unit, and the tune code unit is configured with Adjust code switch, the report code frequency for adjusting the central processor unit；

The input terminal of described control unit is connected with the central processor unit, output end and the second driving unit phase Connection, for other data received from the central processor unit to be finely divided to and are transferred to respectively second driving Each drive module in unit；

The input terminal of first driving unit is connected with the output end of the central processor unit, output end with it is described Dynamic display module is connected, for will directly control the data constantly updated change and received by the central processor unit And it is transmitted to the dynamic display module；

The input terminal of second driving unit is connected with the output end of the controller unit, output end and the static state Display module is connected, for other data received from described control unit to be transferred to the static status display module.

3. a kind of mining LED presentation of information control circuit according to claim 2, which is characterized in that the central processing Device unit uses MSP430F149 type central processing unit elements.

4. a kind of mining LED presentation of information control circuit according to claim 2, which is characterized in that the storage unit Using K24C02 type memory elements.

5. a kind of mining LED presentation of information control circuit according to claim 2, which is characterized in that described control unit Chip, the model EPM570T144C05N of the control chip are controlled using CPLD types.

6. a kind of mining LED presentation of information control circuit according to claim 5, which is characterized in that first driving The identical driving element that unit and the second driving unit use, the driving element model 74HC573.

7. a kind of mining LED presentation of information control circuit according to claim 6, which is characterized in that described EPM570T144C05N types control 8 pins in chip and all 74HC573 types driving member in second driving unit 8 data-out pins in part are connected, the latch control of each 74HC573 type driving element in second driving unit Pin processed is connected with EPM570T144C05N types control chip respectively.

8. a kind of mining LED presentation of information control circuit according to claim 1, which is characterized in that the Dynamic Announce Module includes the first numeral method unit, and the first numeral method unit is connect with first driving unit, and by Three 1 Digital sum pipes are constituted, for showing Signal coding and other numbers.

9. a kind of mining LED presentation of information control circuit according to claim 1, which is characterized in that the static status display Module includes the second numeral method unit and LED display unit, wherein：

The input terminal of the second numeral method unit is connected with the output end of second driving unit, and described second Numeral method unit is made of one group of 3 Digital sum pipe and one group of 5 Digital sum pipe, for directly displaying speed and horizontal position；

The input terminal of the LED display unit is connected with the output end of second driving unit, for coordinating on panel Information makes the LED light light on and off of its different location express the different meanings.