CN101701956A - Portable alcohol concentration detection and alarm system - Google Patents
Portable alcohol concentration detection and alarm system Download PDFInfo
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- CN101701956A CN101701956A CN200910233544A CN200910233544A CN101701956A CN 101701956 A CN101701956 A CN 101701956A CN 200910233544 A CN200910233544 A CN 200910233544A CN 200910233544 A CN200910233544 A CN 200910233544A CN 101701956 A CN101701956 A CN 101701956A
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Abstract
The invention relates to a portable alcohol concentration detection and alarm system, which is not only suitable for detecting and alarming the alcohol concentration of drivers in automobiles, but also suitable for personal carrying. The portable alcohol concentration detection and alarm system is formed by connecting a hyper sensitized alcohol sensor, a signal conditioning and amplifying circuit, a filter circuit and a 12-bit AD transformer embedded in an MSP430 FG4619 singlechip in sequence, and the output end of the MSP430 FG4619 singlechip is connected with a liquid crystal display, an alarm lamp and a voice promoting device. The invention has the advantages that the system can be installed in automobiles, can be held in hand, has the characteristics of small volume, light weight, low power consumption and the like, is suitable for drivers to carry personally, and can measure alcohol concentration at any time to promote driving safety.
Description
Technical field:
The present invention relates to a kind of detection and warning of on the car driver being carried out alcohol concentration that both be applicable to, also be suitable for portable alcohol concentration detection and warning system that the individual carries.
Background technology:
In recent years, along with China's rapid development of economy, the people's living standard improves rapidly, and increasing people has had the private car of oneself, and the traffic hazard that causes of driving when intoxicated also takes place again and again.Symptoms such as the traffic hazard that causes of driving when intoxicated is because driver's excessive consumption of alcohol causes the interior alcohol concentration of human body too high, benumbs nerve, causes brain response slow, and limbs are uncontrolled.Low alcohol consumption does not have above-mentioned symptom, when promptly alcohol concentration is relatively lower in the human body, and will cause danger when alcohol surpasses some values in the human body.For this reason, design a intelligence instrument and detect very key of the interior alcohol content of driver's body.At present whole world overwhelming majority of countries all adopts the expiration alcohol tester that human pilot is carried out scene to detect, with determine alcohol content in the measured body how much, to guarantee driver's the security of the lives and property.In addition, air alcohol concentration monitor can also be monitored the alcohol concentration of a certain specific environment such as Alcohol Production workshop can avoid taking place serious accidents such as on fire, blast and industrial place alcoholism, guarantees Environmental security.
At present alcohol detection instrument on the market only is used for vehicle-mountedly, and links to each other with automobile igniter mostly, when other staff's alcohol concentration exceeds standard except that the driver in the car, tends to false alarm and causes automobile to start; And volume is big, power consumption is high, be not suitable for carrying; Cost is too high, can not popularize.
Summary of the invention:
In order to address the above problem, to the invention provides a kind of portable alcohol concentration and detect and warning system.
The technical solution adopted for the present invention to solve the technical problems is: a kind of portable alcohol concentration detects and warning system is connected in sequence by 12 built-in bit A/D converters of hypersensitivity alcohol sensor, signal condition amplifying circuit, filtering circuit and MSP430FG4619 single-chip microcomputer, described MSP430FG4619 single-chip microcomputer output terminal is connected with LCD, alarm lamp and voice prompting device.
Regulate the threshold value of alcohol concentration for convenience, described MSP430FG4619 single-chip microcomputer links to each other with a keyboard control circuit, and described keyboard control circuit is externally connected to a keyboard.
For the ease of alcohol concentration and the preset threshold that observation records, described MSP430FG4619 single-chip microcomputer output terminal is connected with LCD.
Guarantee that single-chip microcomputer well moves and prevent program fleet, described MSP430FG4619 single-chip microcomputer input end is connected with the monitoring and reset circuit.
For the ease of being written into of debugged program and program, described MSP430FG4619 single-chip microcomputer input end connects a program download interface, and described program download interface is a jtag interface.
Can use onboard also and can carry for the ease of the user, described MSP430FG4619 single-chip microcomputer is connected with dual power supply system, concrete: described dual power supply system inside is in parallel with battery feed circuit by voltage conversion circuit, is in series with the power supply automatic switching circuit again.
Advantage of the present invention is: this instrument can be installed in the automobile, and is also hand-holdable, has characteristics such as volume is little, in light weight, low in energy consumption, also is fit to the driver and carries, and at any time alcohol concentration measured the prompting traffic safety.
Description of drawings:
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a hardware elementary diagram of the present invention.
Fig. 2 is an appearance assumption diagram of the present invention.
Fig. 3 is a software design process flow diagram of the present invention.
Among the figure: 1, hypersensitivity alcohol sensor 2, alarm lamp 3, voice prompting device
Embodiment:
As Fig. 1, embodiment shown in Figure 2, a kind of portable alcohol concentration detects and warning system is formed by connecting by 12 built-in bit A/D converters of hypersensitivity alcohol sensor, signal condition amplifying circuit, filtering circuit and single-chip microcomputer successively, it can be used for the alcohol concentration conversion of signals is digital signal, and inputs to single-chip microcomputer.
For selecting for use of single-chip microcomputer, must satisfy several requirements: the one, built-in high-accuracy A D converter; The 2nd, there is abundant I/O mouth to connect liquid crystal, keyboard etc.; The 3rd, satisfy the low-power consumption requirement; The 4th, support JTAG programming program and debugging.Selected super low-power consumption MSP430FG4619 for use in the present invention.
Processor adopting MSP430FG4619 single-chip microcomputer, after it receives the alcohol concentration data, drive this numerical value of liquid crystal display displays, judge whether simultaneously greater than the threshold value that sets, if greater than would carry out sound and light alarm by voice prompting device that is connected in the MSP430FG4619 single-chip microcomputer and alarm lamp.Described MSP430FG4619 single-chip microcomputer is connected with keyboard control circuit, and keyboard control circuit is externally connected to a keyboard, and it comprises upper and lower, left and right and definite key, is used for setting threshold.MSP430FG4619 single-chip microcomputer output terminal is connected with LCD, and it is used to show alcohol concentration and the setting threshold that records.Pilot lamp is reported to the police and voice suggestion also is by Single-chip Controlling, when measured value during greater than threshold value, starts working.The MSP430FG4619 single-chip microcomputer also is connected with and is used to guarantee that single-chip microcomputer well moves, and prevents the monitoring and reset circuit of program fleet, and the loader download interface that is used for debugged program and program, and described program download interface is a jtag interface.The power pack of system is dual power supply system (vehicle-mounted power supply and powered battery dual mode are arranged), described dual power supply system inside is in parallel with battery feed circuit by voltage conversion circuit, be in series with the power supply automatic switching circuit again, concrete: realize that by the power supply automatic switch-over circuit vehicle-mounted power supply is preferential, and vehicle-mounted power supply can charge the battery.If the single-chip microcomputer replacement MSP430FG4619 single-chip microcomputer with other identical functions also is a scope of protection of the invention.
Software flow pattern of the present invention as shown in Figure 3.After the present invention starts working, at first be system initialization, be written into the threshold value that set last time, if do not set, then be zero, adopt the mode of interrupting to detect the input of keyboard then, if detected the keyboard input, just carry out the input and the preservation of threshold value, if not then enter and detect the alcohol concentration data program, will record data and show again, and with current setting threshold relatively, then report to the police greater than threshold value, less than then returning master routine.
Claims (6)
1. a portable alcohol concentration detects and warning system, it is characterized in that: described portable alcohol concentration detects and warning system is connected in sequence by 12 built-in bit A/D converters of hypersensitivity alcohol sensor, signal condition amplifying circuit, filtering circuit and MSP430FG4619 single-chip microcomputer, described MSP430FG4619 single-chip microcomputer output terminal is connected with LCD, alarm lamp and voice prompting device.
2. portable alcohol concentration according to claim 1 detects and warning system, and it is characterized in that: described MSP430FG4619 single-chip microcomputer links to each other with a keyboard control circuit, and described keyboard control circuit is externally connected to a keyboard.
3. portable alcohol concentration according to claim 1 detects and warning system, and it is characterized in that: described MSP430FG4619 single-chip microcomputer input end is connected with the monitoring and reset circuit.
4. portable alcohol concentration according to claim 1 detects and warning system is characterized in that: described MSP430FG4619 single-chip microcomputer input end connects a program download interface, and described program download interface is a jtag interface.
5. portable alcohol concentration according to claim 1 detects and warning system is characterized in that: described MSP430FG4619 single-chip microcomputer is connected with dual power supply system.
6. portable alcohol concentration according to claim 5 detects and warning system is characterized in that: described dual power supply system inside is in parallel with battery feed circuit by voltage conversion circuit, is in series with the power supply automatic switching circuit again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910233544A CN101701956A (en) | 2009-10-28 | 2009-10-28 | Portable alcohol concentration detection and alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910233544A CN101701956A (en) | 2009-10-28 | 2009-10-28 | Portable alcohol concentration detection and alarm system |
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| Publication Number | Publication Date |
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| CN101701956A true CN101701956A (en) | 2010-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN200910233544A Pending CN101701956A (en) | 2009-10-28 | 2009-10-28 | Portable alcohol concentration detection and alarm system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975843A (en) * | 2010-10-15 | 2011-02-16 | 河南汉威电子股份有限公司 | In-car gas alcohol concentration detection and alarm device |
| CN102004122A (en) * | 2010-10-21 | 2011-04-06 | 西北工业大学 | Alcohol detection alarm device |
| CN102183554A (en) * | 2011-01-25 | 2011-09-14 | 毛振刚 | Ethanol monitoring system |
| CN103079865A (en) * | 2010-07-20 | 2013-05-01 | 伊萨克·巴利斯·查帕罗 | Identification and security device using short-distance ocular biometry |
| CN103776874A (en) * | 2012-10-17 | 2014-05-07 | 成都龙冠科技实业有限公司 | Human body alcohol content collector |
-
2009
- 2009-10-28 CN CN200910233544A patent/CN101701956A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103079865A (en) * | 2010-07-20 | 2013-05-01 | 伊萨克·巴利斯·查帕罗 | Identification and security device using short-distance ocular biometry |
| CN101975843A (en) * | 2010-10-15 | 2011-02-16 | 河南汉威电子股份有限公司 | In-car gas alcohol concentration detection and alarm device |
| CN102004122A (en) * | 2010-10-21 | 2011-04-06 | 西北工业大学 | Alcohol detection alarm device |
| CN102183554A (en) * | 2011-01-25 | 2011-09-14 | 毛振刚 | Ethanol monitoring system |
| CN103776874A (en) * | 2012-10-17 | 2014-05-07 | 成都龙冠科技实业有限公司 | Human body alcohol content collector |
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Application publication date: 20100505 |