CN202459893U - Intelligent alarm device for respirator - Google Patents

Abstract

An intelligent alarm device for a respirator mainly comprises a host, a high-pressure sensor and a pressure switch, wherein a singlechip, a power supply, a keystroke module, an omnidirectional vibration sensor, a temperature sensor, an alarm and a liquid crystal display device are mounted in the host; a high-pressure sensor signal circuit, a keystroke module circuit, an alarm driving circuit, a liquid crystal display driving circuit and a power supply circuit are respectively in electric connection with the singlechip; and the power supply circuit consists of a power management and control circuit and a battery voltage sampling circuit. The intelligent alarm device can not only display the pressure, the residual use time and the environmental temperature of a gas cylinder but also give a prompting alarm when the gas cylinder is accidentally closed, and meanwhile, can serve the self-detection and call-for-help functions of the respirator. In case of an accident, a relief worker can call for help by pressing a call-for-help button by hand, and when self-evacuation is unavailable when the relief worker becomes unconscious, an automatic call-for-help program can automatically starts to inform staff nearby of rescue in time.

Description

A kind of respirator intelligent alarm device

Technical field

The utility model belongs to the electronic alarm technology, is specifically related to a kind of respirator intelligent alarm device.

Background technology

At present, on the market, what respirator adopted basically is mechanical alarm device at home, only has simple overbottom pressure warning function usually, does not possess the function that shows residue service time, environment temperature and other system state, and need consume part oxygen when reporting to the police.When the nervous rescue of rescue personnel, the time that can't cognitive residual gas directly perceived can supply breathe, it is very disadvantageous like this rescue personnel effectively being withdrawn the site of the accident, danger zone.Therefore, for the employed respirator of the site of the accident, danger zone rescue personnel, be badly in need of a kind of respirator intelligent alarm device.

Summary of the invention

The purpose of the utility model is for the site of the accident, danger zone rescue personnel provides a kind of respirator intelligent alarm device, and this device both can show in real time that storage pressure, gas cylinder remain service time, environment temperature, can point out warning again when the gas cylinder accident is closed.Simultaneously, this respirator intelligent alarm device has the self detecting function and the calling function of respirator.When something unexpected happened, the rescue personnel can use manual Help Point to call for help, and when it lost consciousness and can't withdraw voluntarily, the automatic calling for help program can start automatically, and the staff implements to rescue at once near the notice danger zone.

The utility model has adopted following technical scheme:

A kind of respirator intelligent alarm device comprises main frame, high pressure sensor, pressure switch, wherein: single-chip microcomputer, power supply, key-press module, omnidirectional's vibrating sensor, temperature sensor, alarm and liquid crystal indicator are housed in the main frame; The air pressure input of said high pressure sensor is connected with the gas cylinder of respirator, and the air pressure input of low tension switch is connected with the respirator respiratory system; Said high pressure sensor signal output part, low tension switch signal output part, key-press module, omnidirectional's vibrating sensor, temperature sensor, alarm, liquid crystal indicator are electrically connected with single-chip microcomputer respectively; Said liquid crystal indicator comprises Liquid Crystal Module and display, liquid crystal indicator and the transmission of chip microcontroller information; The circuitry of this respirator intelligent alarm device is by single chip machine controlling circuit, high pressure sensor signal circuit, and unit such as key-press module circuit, warning drive circuit, liquid crystal display drive circuit, power circuit are formed;

Wherein: said high pressure sensor signal circuit, key-press module circuit, warning drive circuit, liquid crystal display drive circuit, power circuit are electrically connected with single-chip microcomputer respectively; Said power circuit is made up of power management control circuit, battery voltage sampling circuit.

The utlity model has following beneficial effect:

The utility model adopts the vibrating sensor monitoring personnel's of omnidirectional status of action, and is provided with calling function, can under the crisis situation, call for help automatically or manually, has improved personnel's safety assurance greatly.The utility model is selected single chip machine controlling circuit for use; The pressure data that monitors in conjunction with high pressure sensor; Can show the available time of residual gas in real time through single-chip microcomputer calculating, this has guaranteed that personnel can effectively improve rescue efficiency and security to the time reasonable distribution.The utility model adopts liquid crystal indicator, all data all can intuitively show or through the button query display.The utility model can realize that the air-tightness of respirator detects.The utility model also has the environment temperature measuring ability.

Description of drawings

Fig. 1 is the basic structure sketch map of the utility model.

Fig. 2 is the circuitry schematic diagram of the utility model.

Fig. 3 is the basic controlling flow process figure of single-chip microcomputer in the utility model.

The specific embodiment

Illustrated in figures 1 and 2, the respirator intelligent alarm device of the utility model.It comprises main frame, high pressure sensor, low tension switch, and host housing is according to the handheld device size design of human engineering design.Wherein: single-chip microcomputer, power supply, key-press module, omnidirectional's vibrating sensor, temperature sensor, alarm and liquid crystal indicator are housed in the main frame; The air pressure input of high pressure sensor is connected with the gas cylinder of respirator, and low tension switch air pressure input is connected with the respirator respiratory system.Pressure sensor signal output, pressure switch signal output part, key-press module, omnidirectional's vibrating sensor, temperature sensor, alarm, liquid crystal indicator are electrically connected with single-chip microcomputer respectively; Liquid crystal indicator comprises Liquid Crystal Module, display; Liquid Crystal Module is connected with display, and display is the backlight LCD display.Key-press module is divided into left button, right button that is installed in the host housing left and right sides and the calling for help key that is installed in main frame the place ahead; Key-press module is connected with the I/O port of single-chip microcomputer; Right button can be inquired about environment temperature; Left button is that LCD backlight is released the button, and presses the calling for help key and can send strong warning distress call, can stop reporting to the police by right and left key simultaneously.Alarm is the audible-visual annunciator that light emitting diode and buzzer are formed, and audible-visual annunciator can be sent the sound and light alarm signal of multiple various combination by the control of warning drive circuit.

The said single-chip microcomputer of the utility model is selected state-of-the-art NEC singlechip technology for use, and described high pressure sensor is selected the high accuracy diffusion silicon pressure sensor for use.Described power supply is selected the good 9V laminated cell of explosion-proof performance for use.

The operation principle of the respirator intelligent alarm device of the utility model

Shown in Figure 3, the basic controlling flow process figure of single-chip microcomputer in the utility model.

When the respirator intelligent alarm device uses, open gas cylinder, the respiratory system internal gas pressure is during greater than 0Pa; Low tension switch is opened; When high pressure sensor monitors gas cylinder air pressure greater than 0MPa, the utility model starts, and single-chip microcomputer is accomplished software initialization; Carry out self check, comprise that battery electric quantity detects, the display monitoring.After the self check success, the signal that single-chip microcomputer will receive high pressure sensor amplifies, A/D conversion and calibration operation, detects when storage pressure begins air-tightness during greater than 16MPa automatically, and it is airtight qualified that the speed that single-chip microcomputer descends through calculating pressure judges whether.Airtight qualified, respirator can normally use, and the respirator intelligent alarm device gets into normal operating conditions.The signal of high pressure sensor, temperature sensor continues to be input to single-chip microcomputer, after single-chip microcomputer is handled, obtains actual storage pressure and ambient temperature data, and single-chip microcomputer calculates according to the high pressure sensor image data and remains service time simultaneously.

After the utility model starts; Can press respectively and call for help key, right button and left button; Realization is sent strong warning distress call, display environment temperature and is lighted background light, and when detecting storage pressure and be reduced to 5.5MPa, the MCU driving sound light alarming circuit starts; Light-Emitting Diode is lighted, buzzer is sounded, and produces the sound and light alarm signal.The signal of omnidirectional's vibrating sensor is through single-chip microcomputer processing judgement personnel's status of action, if not discovery personnel motion of 30s continuously, then MCU driving alarm sound and light alarm.Finishing using, close gas cylinder, is 0MPa when high pressure sensor monitors storage pressure, and respiratory pressure is when being 0Pa, and the utility model shuts down automatically.

Claims (1)

1. a respirator intelligent alarm device is characterized in that: comprise main frame, high pressure sensor, pressure switch, wherein: single-chip microcomputer, power supply, key-press module, omnidirectional's vibrating sensor, temperature sensor, alarm and liquid crystal indicator are housed in the main frame; The air pressure input of said high pressure sensor is connected with the gas cylinder of respirator, and the air pressure input of low tension switch is connected with the respirator respiratory system; Said high pressure sensor signal output part, low tension switch signal output part, key-press module, omnidirectional's vibrating sensor, temperature sensor, alarm, liquid crystal indicator are electrically connected with single-chip microcomputer respectively; Said liquid crystal indicator comprises Liquid Crystal Module and display, liquid crystal indicator and the transmission of chip microcontroller information; The circuitry of this respirator intelligent alarm device is by single chip machine controlling circuit, high pressure sensor signal circuit, and unit such as key-press module circuit, warning drive circuit, liquid crystal display drive circuit, power circuit are formed;

Wherein: said high pressure sensor signal circuit, key-press module circuit, warning drive circuit, liquid crystal display drive circuit, power circuit are electrically connected with single-chip microcomputer respectively; Said power circuit is made up of power management control circuit, battery voltage sampling circuit.

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