阅读说明：本技术 一种用于马赛克盘台的数字指针表模块 (Digital pointer meter module for mosaic plate platform ) 是由 刘璋 于 2021-09-02 设计创作，主要内容包括：本发明提供一种用于马赛克盘台的数字指针表模块,涉及仪器仪表技术领域。该数字指针表模块,包括下壳,所述下壳的内部通过第一紧固螺钉连接有主板,所述下壳的顶部固定连接有上壳,所述下壳的一端内侧设置有液晶屏板,所述支撑架的一端外侧设置有视窗盖板,所述上壳的两侧均通过连接有簧片,所述下壳的另一端通过第二紧固螺钉连接有下盖板。通过上壳、下壳、下盖板以及视窗盖板组合成模块,可以安装高分辨率液晶屏、处理器及可靠配套结构件,将信号采集模块通过处理器连接显示模块,信号采集模块采集信号,显示模块用于将数据显示在液晶屏上,可实现多种类型、多路信号的采集并显示在液晶屏上。(The invention provides a digital pointer meter module for a mosaic plate table, and relates to the technical field of instruments and meters. This digital pointer table module, including the inferior valve, the inside of inferior valve is connected with the mainboard through first fastening screw, the top fixedly connected with epitheca of inferior valve, the one end inboard of inferior valve is provided with the liquid crystal screen board, the one end outside of support frame is provided with the window apron, the both sides of epitheca are all through being connected with the reed, the other end of inferior valve is connected with down the apron through second fastening screw. The module is formed by combining the upper shell, the lower cover plate and the window cover plate, a high-resolution liquid crystal screen, a processor and a reliable matched structural part can be installed, the signal acquisition module is connected with the display module through the processor, the signal acquisition module acquires signals, the display module is used for displaying data on the liquid crystal screen, and the acquisition of various types and multiple paths of signals can be realized and the signals can be displayed on the liquid crystal screen.)

1. The utility model provides a digital pointer table module for mosaic dish platform, includes inferior valve (9), its characterized in that: the utility model discloses a window, including inferior valve (9), the inside of inferior valve (9) is connected with mainboard (11) through first fastening screw (2), the top fixedly connected with epitheca (6) of inferior valve (9), the one end inboard of inferior valve (9) is provided with liquid crystal screen board (8), the one end outside of inferior valve (9) is provided with support frame (1), the one end outside of support frame (1) is provided with window apron (10), the both sides of epitheca (6) all are connected with reed (5) through (3).

2. The digital pointer table module for the mosaic table of claim 1, wherein: the other end of the lower shell (9) is connected with a lower cover plate (7) through a second fastening screw (4).

3. A digital pointer table module for a mosaic table according to claim 2, wherein: the lower cover plate (7) is internally provided with a through hole.

4. The system of the digital pointer table module for the mosaic disk table of claim 1, wherein: the device comprises a processor (12), a signal acquisition module (15) and a display module (20), wherein the signal acquisition module (15) is connected with the display module (20) through the processor (12).

5. The system of the digital pointer table module for the mosaic disk table of claim 4, wherein: still include clock module (18), debugging serial port module (17), isolation drive module (19) and storage module (21), processor (12) is connected in clock module (18) communication, debugging serial port module (17) are through treater (12) connection storage module (21), treater (12) are connected with opto-coupler module (16), display module (20) are connected through isolation drive module (19) in treater (12).

6. The system of the digital pointer table module for the mosaic disk table of claim 5, wherein: still include power module (13) and voltage regulating module (14), power module (13) are through voltage regulating module (14) connection signal acquisition module (15), treater (12), keep apart drive module (19) and display module (20).

Technical Field

The invention relates to the technical field of instruments and meters, in particular to a digital pointer meter module for a mosaic disk table.

Background

Instrument systems of the nuclear power plant are like human sense organs and commonly exist in all corners of a nuclear island, a conventional island and an auxiliary workshop control system of the nuclear power plant, and provide various on-line control and monitoring information so as to inform operators of physical parameters of the system or equipment in time, such as temperature, pressure, flow, voltage, current and other physical quantities or on-off state parameter information.

The pointer table used for the mosaic panel table in the nuclear industry is a mechanical pointer table in the past, and has the defects of low response speed, low precision, difficult maintenance and incapability of configuring acquisition of various types and multiple paths of signals.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a digital pointer meter module for a mosaic disk table, which solves the problems that a mechanical pointer meter is low in response speed and precision and cannot be configured with various types and multi-channel signal acquisition.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a digital pointer table module for mosaic dish platform, includes the inferior valve, the inside of inferior valve is connected with the mainboard through a fastening screw, the top fixedly connected with epitheca of inferior valve, the one end inboard of inferior valve is provided with the liquid crystal screen board, the one end outside of inferior valve is provided with the support frame, the one end outside of support frame is provided with the window apron, the both sides of epitheca are all through being connected with the reed.

Preferably, the other end of the lower case is connected with a lower cover plate through a second fastening screw.

Preferably, the lower cover plate is internally provided with a through hole.

Preferably, the system for the digital pointer meter module of the mosaic disk table comprises a processor, a signal acquisition module and a display module, wherein the signal acquisition module is connected with the display module through the processor.

Preferably, the system further comprises a clock module, a debugging serial port module, an isolation driving module and a storage module, wherein the clock module is in communication connection with the processor, the debugging serial port module is connected with the storage module through the processor, the processor is connected with the optocoupler module, and the processor is connected with the display module through the isolation driving module.

Preferably, the system further comprises a power module and a voltage regulating module, wherein the power module is connected with the signal acquisition module, the processor, the isolation driving module and the display module through the voltage regulating module.

The working principle is as follows: the display device comprises a lower shell, a mainboard, an upper shell, a liquid crystal screen panel, a support frame, a window cover plate, a reed, a lower cover plate, a through hole and a signal acquisition module, wherein the mainboard is connected with the inside of the lower shell through a first fastening screw, the upper shell is fixedly connected with the top of the lower shell, the liquid crystal screen panel is arranged at the inner side of one end of the lower shell, the support frame is arranged at the outer side of one end of the lower shell, the window cover plate is arranged at the outer side of one end of the support frame, both sides of the upper shell are connected with the reed, the lower cover plate is connected with the other end of the lower shell through a second fastening screw, the through hole is formed in the lower cover plate, the connection of cables is facilitated, the high-resolution liquid crystal display screen, the processor and a reliable matched structural part are installed, the signal acquisition module is used for receiving current signals or voltage signals, the signal acquisition module is used for modulating and filtering and sending the signal to the processor through an SPI protocol, the processor is used for performing data operation and conversion according to a preset range, converting the acquired AD value into a fixed point number to be sent to a display module, the display module which is used for displaying data on the liquid crystal screen, the acquisition of various types and multiple paths of signals can be realized and displayed on the liquid crystal screen.

(III) advantageous effects

The invention provides a digital pointer table module for a mosaic disk table. The method has the following beneficial effects:

1. the digital pointer meter module is formed by combining the upper shell, the lower cover plate and the window cover plate into a module, a high-resolution liquid crystal screen, a processor and a reliable matched structural member can be installed, the shell is made of metal, the whole product has good isolation performance and EMC shielding performance, and the digital pointer meter module with powerful function, configurability, high precision and high reliability is realized by installing the high-resolution liquid crystal screen, the processor and the reliable matched structural member.

2. According to the invention, the signal acquisition module is connected with the display module through the processor, the signal acquisition module acquires signals, and the display module is used for displaying data on the liquid crystal screen, so that acquisition of various types and multi-path signals can be realized and displayed on the liquid crystal screen, and the problems that the mechanical pointer meter is low in response speed and precision and cannot be configured for acquisition of various types and multi-path signals are solved.

Drawings

FIG. 1 is a schematic diagram of an explosion structure of a digital pointer meter module according to the present invention;

fig. 2 is a block diagram of the system of the present invention.

Wherein, 1, a support frame; 2. a first fastening screw; 3. a second fastening screw; 4. a second fastening screw; 5. a reed; 6. an upper shell; 7. a lower cover plate; 8. a liquid crystal panel; 9. a lower case; 10. a window cover plate; 11. a main board; 12. a processor; 13. a power supply module; 14. a voltage regulating module; 15. a signal acquisition module; 16. an optocoupler module; 17. debugging a serial port module; 18. a clock module; 19. an isolation drive module; 20. a display module; 21. and a storage module.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1, an embodiment of the present invention provides a digital pointer table module for a mosaic plate table, which includes a lower casing 9, the interior of the lower casing 9 is connected to a main board 11 through a first fastening screw 2, the top of the lower casing 9 is fixedly connected to an upper casing 6, the inner side of one end of the lower casing 9 is provided with a liquid crystal screen 8, the outer side of one end of the lower casing 9 is provided with a support frame 1, the outer side of one end of the support frame 1 is provided with a window cover plate 10, both sides of the upper casing 6 are connected to reeds 5 through 3, the other end of the lower casing 9 is connected to a lower cover plate 7 through a second fastening screw 4, both the upper casing 6 and the lower casing 9 are made of metal, the product has good isolation performance and EMC shielding performance, the interior of the lower cover plate 7 is provided with a through hole for facilitating connection of cables, and a module can be assembled through the upper casing 6, the lower casing 9, the lower cover plate 7 and the window cover plate 10, so as to install a high resolution liquid crystal screen, A processor and a reliable mating structure.

Example two:

as shown in fig. 2, an embodiment of the present invention provides a system of a digital pointer table module for a mosaic display platform, including a processor 12, a signal acquisition module 15 and a display module 20, where the signal acquisition module 15 is connected to the display module 20 through the processor 12, the signal acquisition module 15 is connected to the processor 12 through an SP I protocol, the signal acquisition module 15 is configured to receive a 4-20 mA current signal or a 0-10V voltage signal, the signal acquisition module 15 is configured to modulate and filter and send the signal to the processor 12 through an SPI protocol, the processor 12 is configured to perform data operation and conversion according to a preset range, convert an acquired AD value into a fixed point number and send the fixed point number to the display module 20, and the display module 20 is configured to display data on a liquid crystal screen. The digital pointer meter module receives a 4-20 mA current signal or a 0-10V voltage signal through the signal input interface, the processor 12 performs data operation and conversion according to a preset measuring range and transmits the data to the display element, and finally, the data is displayed on the LCD, the LED and the OLED liquid crystal screen, so that the acquisition of various types and multiple paths of signals can be realized and the signals can be displayed on the liquid crystal screen.

The system further comprises a clock module 18, a debugging serial port module 17, an isolation driving module 19 and a storage module 21, the clock module 18 is in communication connection with the processor 12, the debugging serial port module 17 is connected with the storage module 21 through the processor 12, the processor 12 is connected with an optical coupling module 16, the processor 12 is connected with a display module 20 through the isolation driving module 19, the debugging serial port module 17 is used for configuring a calibration coefficient and a linear coefficient through an upper computer, the isolation driving module 19 is driven by 5V voltage, the isolation driving module is amplified through a triode and used for driving 3 bits, 4 bits and 5 bit fixed points to be transmitted to the display module 20, and the storage module 21 is used for storing the coefficient of linear conversion, the AD calibration coefficient and the display format information of a digital display.

The system further comprises a power module 13 and a voltage regulating module 14, wherein the power module 13 is connected with a signal acquisition module 15, a processor 12, an isolation driving module 19 and a display module 20 through the voltage regulating module 14, the power module 13 is used for power isolation and protection, and the voltage regulating module 14 is used for converting an industrial field 24V power signal into a 3.3V direct-current power supply.

The linear conversion coefficient, the AD calibration coefficient and the display format information of the digital display table are stored in an external memory FLASH, a storage module 21 and a FLASH interface are used for carrying out data storage, when the power is on, the AD calibration coefficient and the linear coefficient are read from the FLASH, the on-site signals are acquired and displayed after being checked by CRC32, if necessary, the calibration coefficient can be configured and written in through the interface, the AD sampling period is less than 200ms, the FPGA processing time is less than 100ms, and the display time is less than 200 ms.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.