CN203070495U

CN203070495U - OLED display gas alarm detector

Info

Publication number: CN203070495U
Application number: CN 201320074953
Authority: CN
Inventors: 姜振中
Original assignee: QINGDAO RUNCHENG SHIP TECHNOLOGY Co Ltd
Current assignee: QINGDAO RUNCHENG SHIP TECHNOLOGY Co Ltd
Priority date: 2013-01-30
Filing date: 2013-01-30
Publication date: 2013-07-17
Anticipated expiration: 2023-01-30

Abstract

The utility model discloses an OLED display gas alarm detector, comprising the following components: a one-chip microcomputer, an OLED display module, a sensor module, a calibration module, an alarm signal output module, and a power module. The OLED display module is connected with the one-chip microcomputer in a communication manner. The sensor module is connected with an UART chip port on the one-chip microcomputer. The calibration module is connected with a FLASH memory on the one-chip microcomputer. The alarm signal output module is connected with a D/A converter on the one-chip microcomputer. The power module is electrically connected with the one-chip microcomputer, the OLED display module, the sensor module, the calibration module, and the alarm signal output module to supply power. The OLED display gas alarm detector realizes application of OLED display devices on gas detectors, and is an industrial gas detector which can perform calibration and configuration locally and is suitable to be used in outdoor mal-conditions and is convenient to operate.

Description

The gas alarm detector that a kind of OLED shows

Technical field

The utility model relates to a kind of gas alarm detector, belongs to the safety feature field.

Background technology

The gas alarm detector is a kind of common safety device, be used for the specific safety factor of acquisition environment, for example concentration of toxic gases, smokescope, combustable gas concentration etc., and provide relevant alarm function to play the effect of security warning according to the gas information that detects.

Existing gas alarm detector is extensive use of LED light, the LED charactron, display units such as LCD LCD show, yet LED light, LED charactron etc. are because the reasons in structure of himself can not show that the very large area of character, Chinese character or needs carries out complicated assembly unit and could show Chinese character information, and LED is owing to the circuit characteristic of self can not be calibrated and configuration on the spot; And the LCD display restricted application can not influence the use out of doors of gas alarm detector from main light emission.

Summary of the invention

Defective at prior art, the utility model discloses the gas alarm detector that a kind of OLED shows, the OLED display module is applied in the gas alarm detector, can in wide temperature range, (40 ℃-85 ℃) shows, and can autoluminescence; Simultaneously, the disclosed gas alarm detector of the utility model also can be calibrated and configuration on the spot, conveniently adjusts parameter flexibly according to different actual application environment.

For achieving the above object, the utility model is achieved through the following technical solutions:

The gas alarm detector that a kind of OLED shows, comprise with lower member: single-chip microcomputer, the OLED display module, sensor assembly, calibration module, the alerting signal output module, power module, wherein the OLED display module is connected with microcontroller communication, sensor assembly is connected to the UART chip port on the single-chip microcomputer, calibration module is connected to the FLASH storer on the single-chip microcomputer, the alerting signal output module is connected with D/A converter on the single-chip microcomputer, and power module is electrically connected single-chip microcomputer, the OLED display module, sensor assembly, calibration module, the alerting signal output module provides electric power.

By said structure, thereby the built-in UART of sensor assembly and single-chip microcomputer carries out the information that the exchanges data realization obtains sensor, and for example combustable gas concentration, concentration of toxic gases etc. are transferred to single-chip microcomputer; Single-chip microcomputer is transferred to the OLED display module with warning message by data bus and shows; Stored alarming threshold value etc. in the FLASH storer of single-chip microcomputer in interior various parameters, calibration module is calibrated by data such as the built-in FLASH of single-chip microcomputer storage calibration data, alarming threshold value are made amendment, the OLED display module then is connected with single-chip microcomputer by data bus, calibrates demonstration, alarm indication etc. accordingly.

Do not limit the type of concrete calibration module in the utility model, it can be traditional mechanically calibrated module (for example mechanical knob), switch calibration module (for example keyboard), touch calibration module (touch-screen that for example shows relevant calibration parameter) etc.

In the utility model, for the standardization that realizes data transmission and the reusability of element, described alerting signal output module is made up of HART modulatedemodulate depressor and connection terminal, and wherein HART modulatedemodulate depressor connects the D/A converter on the single-chip microcomputer, and connection terminal is connected on the HART modulatedemodulate depressor.

By said structure, can finish the transmitting-receiving work of 4-20mA signal and HART standard agreement signal.

In the utility model, used single-chip microcomputer type is not restricted, and the available arbitrarily single-chip microcomputer that is used for the gas alarm display all can be used for the utility model, preferably, described single-chip microcomputer is the STM32 single-chip microcomputer, and its applicability is wide, develop easy, industrial degree of ripeness height, and application cost is low.

In the utility model, preferred HART modulatedemodulate depressor model is HT1200M, compares with other HART modulatedemodulate depressor, its outward element is few, working temperature wide (40 ℃-85 ℃), inner integrated belt pass filter and shaping circuit, good stability meets the Bel1202 standard.

In order to make gas alarm detector of the present utility model under mal-condition, to use, it is installed in anticorrosion metal (normally titanium) shell, be socketed with transparency glass plate and water proof ring on the shell, thereby can be applicable under the gaseous environments such as humidity, corrosivity.

By above-mentioned technological improvement, gas alarm detector of the present utility model has realized that the OLED display device is in the technical application of gas detector, the Applicable temperature scope is wide, from main light emission, can calibrate on the spot and configuration, be fit to use under the outdoor mal-condition and the technique effect of handled easily.

Description of drawings

Fig. 1 is composition structural representation of the present utility model.

Embodiment

With reference to figure 1, the gas alarm detector that OLED of the present utility model shows, be installed in the titanium shell 9, wherein be socketed with transparency glass plate and water proof ring in the titanium shell, this gas alarm detector uses SMT32 single-chip microcomputer 1 as key process unit, OLED display module 3 is connected to single-chip microcomputer and realizes two-way data transmission by data bus, sensor assembly 4 is connected to the transmitted in both directions of the UART chip port realization sensing data of single-chip microcomputer, the FLASH storer that calibration module 5 is connected to single-chip microcomputer is realized calibration parameter read and revise adjustment, HART modulatedemodulate depressor 7 is connected to the D/A port 8 of single-chip microcomputer and by connection terminal information is offered external device, D/A port wherein, HART modulatedemodulate depressor, connection terminal three acting in conjunction has realized the effect of 4-20mA and HART alarm output module 6, wherein power module 2 provides electric power (not shown by default wiring board for other each modules, in side circuit, power module is each module for power supply by lead or conductive contact).

In the foregoing description, UART, HART are those skilled in the art's common technology vocabulary, represent the open communication agreement of universal asynchronous reception/dispensing device (parallel input becomes the chip of serial output, is integrated on the mainboard usually), highway addressable remote transducer respectively.

Structure shown in the above-mentioned accompanying drawing only is a kind of preferred realization of the present utility model, and the modification that those skilled in the art carry out on this basis, replacement etc. all belong to protection domain of the present utility model.

Claims

1. the gas alarm detector that shows of an OLED, it is characterized in that comprising with lower member: single-chip microcomputer, the OLED display module, sensor assembly, calibration module, the alerting signal output module, power module, wherein the OLED display module is connected with microcontroller communication, sensor assembly is connected to the UART chip port on the single-chip microcomputer, calibration module is connected to the FLASH storer on the single-chip microcomputer, the alerting signal output module is connected with D/A converter on the single-chip microcomputer, and power module is electrically connected single-chip microcomputer, the OLED display module, sensor assembly, calibration module, the alerting signal output module provides electric power.

2. the gas alarm detector that shows of OLED according to claim 1, it is characterized in that described alerting signal output module is made up of HART modulatedemodulate depressor and connection terminal, wherein HART modulatedemodulate depressor connects the D/A converter on the single-chip microcomputer, and connection terminal is connected on the HART modulatedemodulate depressor.

3. the gas alarm detector of OLED demonstration according to claim 1 is characterized in that described single-chip microcomputer is the STM32 single-chip microcomputer.

4. the gas alarm detector of OLED demonstration according to claim 2 is characterized in that HART modulatedemodulate depressor model is HT1200M.

5. the gas alarm detector of OLED demonstration according to claim 1 is characterized in that being installed in the anticorrosion metal shell, is socketed with transparency glass plate and water proof ring on the shell.