Data gathering and liquid crystal display device

A liquid crystal display device and data acquisition technology, which is applied in electrical digital data processing, data processing input/output process, instruments, etc., can solve problems such as burnout of the meter head, and achieve short data acquisition time, simple and convenient interface, and anti-vibration. powerful effect

Inactive Publication Date: 2008-03-26
SHENYANG SCI INSTR RES CENT CHINESE ACAD OF SCI
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Problems solved by technology

In the original display technology of the high-energy electron gun power supply, the digital tube is used as the display element. Since the information displayed by the digital tube is small, the display data is switched by a mechanical switch. The head of the meter is burned, and because the sampling data contains high-voltage sampling data, a new type of data acquisition, display and intelligent module that can communicate with the host computer is urgently needed

Method used

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  • Data gathering and liquid crystal display device
  • Data gathering and liquid crystal display device
  • Data gathering and liquid crystal display device

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Embodiment 1

[0029] The present invention consists of the first to eight operational amplifiers (U6A, U6B, U7A, U7B, U8A, U8B, U9A, U9B), AD data converter (U10), RS232 serial communication interface (U12), RS485 interface (U18), Real-time clock (U2), LCD interface (U3), display memory (U5), single-chip microcomputer (U1), watchdog, EEPROM and voltage monitor (U11). The specific connection is: the 3 pins or 5 pins of the first to eight operational amplifiers (U6A, U6B, U7A, U7B, U8A, U8B, U9A, U9B) are respectively connected in series with the second resistor R2, the fourth resistor R4, and the sixth resistor R6, the eighth resistor R8, the tenth resistor R10, the twelfth resistor R12, the fourteenth resistor R14, and the sixteenth resistor R16 are connected to 8 analog signal input terminals, and the input terminals are respectively connected to eight input channels. It is used as a non-inverting input amplifier in the form of a high resistance follower to form 8 analog signal input chann...

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Abstract

This invention discloses a kind of data acquisition and liquid crystal display device. It concludes: a chip computer communicating with the epistatic computer through the interface, the input connecting the eight circuits analogue signal, then output to the first to eight operational amplifier of the AD data converter and then transfer the analogue signal from the first to eight operational amplifier to digital signal after that through the bus and the AD data converter connecting with the chip computer; the real-time clock connecting with the chip computer through the SPI bus and the LCD interface connecting with the chip computer through the data bus of which output reaches the liquid crystal indicator and through the logic device to the indicator also mounts a switch negative pressure generator connecting with the LCD interface; and a door dog, EEPROM, and avoltage monitor connecting with the chip computer. This invention adopts the electronic switch and operates automatically and it can realize the eight channels data acquisition.

Description

technical field [0001] The invention relates to the field of intelligent instruments, in particular to a data acquisition and liquid crystal display device. Background technique [0002] In the field of intelligent instruments, data acquisition, display and communication interface with host computer are essential. In the original display technology of the high-energy electron gun power supply, the digital tube is used as the display element. Since the information displayed by the digital tube is small, the display data is switched by a mechanical switch. The head of the meter was burned, and because the sampling data contained high-voltage sampling data, a new type of intelligent module for data acquisition, display and communication with the host computer was urgently needed. Contents of the invention [0003] The purpose of this invention is to provide a kind of data collection and liquid crystal display device, it adopts electronic switch, implements automatically and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042G06F3/147
Inventor 张利国
Owner SHENYANG SCI INSTR RES CENT CHINESE ACAD OF SCI
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