CN204908111U - Harmful gas detects functional shoe - Google Patents

Abstract

The utility model discloses a harmful gas detects functional shoe includes the shoes body, the shoes body includes sole and upper of a shoe, the sole is including the heel that is located the heel below, the inside CO sensor that exposes in the air that is provided with of heel, the middle part of sole is provided with circuit unit and battery, circuit unit include with temperature compensation circuit, operational amplifier circuit, sampling converting circuit, singlechip and early warning device that the CO sensor connected gradually, when the sampling converting circuit export to the magnitude of voltage of singlechip is greater than when predetermineeing the warning magnitude of voltage, single chip microcomputer control early warning device sends the suggestion of reporting to the police. Make the miner who dresses it enough realize the measuring to CO concentration at any local homoenergetic, can enlarge miner's home range, this functional shoe compares in the detection device cost reduction of independent installation in addition.

Description

Harmful-gas detection function footwear

Technical field

The utility model relates to air detecting device in mine, particularly relates to a kind of harmful-gas detection function footwear.

Background technology

Pernicious gas in mine generally comprises CO, H2S, SO2, NO2, NH3, CH4.But in these pernicious gases, all have excitant except crossing CO other gas outer in finite concentration, human body just can be identified by sense of smell, these gases to the harm of human body very greatly, but but can be taken emergency measures and avoid as far as possible.Wherein CO be a kind of colourless, tasteless, be slightly soluble in water, can the hypertoxicity gas of combustion explosion; This CO larger than oxygen 250 ~ 300 times with the affinity of the ferroheme in blood of human body, can cause human body anoxia poisoning after CO enters blood, finally dead; But such process, human body can't be discovered.

In mine, have a lot of device detecting CO concentration at present, these equipment are all self-contained units, need to arrange in addition, can only detect in setting area, want to arrange such self-contained unit cost to all zones of action very high.

The MGS1100 sensor of Motorola is that the heater that embeds in miniature silicon dridge structure makes one deck SnO2 film, this structure makes this film in very wide temperature, have sensitiveness to CO gas, and silicon fiml reduces heat conducting heat loss, thus greatly reduce power consumption.

Utility model content

The technical problems to be solved in the utility model is: provide a kind of body-worn to the harmful-gas detection function footwear of CO Concentration Testing in mine.

For achieving the above object, described harmful-gas detection function footwear comprise shoes body, and described shoes body comprises sole and upper of a shoe, and described sole comprises the heel be positioned at below heel.

Described heel inside is provided with exposed aerial CO sensor; The middle part of described sole is provided with circuit unit and battery, and described circuit unit comprises the temperature-compensation circuit, operational amplification circuit, sample conversion circuit, single-chip microcomputer and the prior-warning device that are connected successively with described CO sensor; The CO concentration of detection for detecting CO concentration, and is outputted to described operational amplification circuit with the form of voltage signal and amplifies by described CO sensor; The voltage signal that sample conversion circuit is used for operational amplification circuit amplifies is sampled, and converts the signal of sampling to magnitude of voltage and be sent to described single-chip microcomputer; When the magnitude of voltage that described sample conversion circuit exports described single-chip microcomputer to is greater than default warning magnitude of voltage, described in described Single-chip Controlling, prior-warning device sends alarm.

Further, be also connected with relay between described single-chip microcomputer and described prior-warning device, the folding of described relay is controlled is formed on described single-chip microcomputer, and when described relay closes, described prior-warning device sends alarm.

Further, described prior-warning device is buzzer or loudspeaker.

Further, described prior-warning device is the LED of several different colours interval flashing.

Further, described temperature-compensation circuit, for controlling the operating temperature of described CO sensor, makes it work in normal temperature range; Described temperature-compensation circuit at least comprises a thermistor.

Further, described CO sensor is the MGS1100 model of motorola inc.

The detection that the utility model harmful-gas detection function footwear make the miner dressing it all can realize CO concentration anywhere, can expand the scope of activities of miner; This functional shoe reduces compared to the independent checkout gear cost installed in addition.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, by describing in detail detailed description of the invention of the present utility model, will make the technical solution of the utility model and other beneficial effect apparent.

In accompanying drawing,

Fig. 1 is the utility model harmful-gas detection function footwear structure schematic diagram;

Fig. 2 is the utility model circuit part modular structure schematic diagram;

Fig. 3 is the utility model CO sensor pin structural representation;

Fig. 4 is the utility model CO sensor fundamental measurement circuit diagram;

Fig. 5 is the circuit diagram of the utility model temperature-compensation circuit.

Drawing reference numeral illustrates:

1, shoes body; 11, sole; 111, heel; 12, upper of a shoe; 2, circuit unit; 21, temperature-compensation circuit; 22, operational amplification circuit; 23, sample conversion circuit; 24, single-chip microcomputer; 25, prior-warning device; 26, relay; 3, battery; 4, CO sensor.

Detailed description of the invention

For further setting forth the technological means and effect thereof that the utility model takes, be described in detail below in conjunction with preferred embodiment of the present utility model and accompanying drawing thereof.

Refer to Fig. 1 and Fig. 2, the utility model detailed description of the invention provides a kind of harmful-gas detection function footwear.

Described harmful-gas detection function footwear comprise shoes body 1, and described shoes body 1 comprises sole and upper of a shoe 12, and described sole comprises the heel 111 be positioned at below heel.

Described heel inside is provided with exposed aerial CO sensor 4; Described CO sensor 4 is mainly for detection of CO concentration in air.Described heel can adopt hollow structure or engraved structure or is fixed therein by described CO sensor 4, and wherein hollow structure or engraved structure can ensure the mobility of air near described CO sensor 4, can improve accuracy of detection.

The middle part of described sole is provided with circuit unit 2 and battery 3, and described circuit unit 2 comprises the temperature-compensation circuit 21, operational amplification circuit 22, sample conversion circuit 23, single-chip microcomputer 24 and the prior-warning device 25 that are connected successively with described CO sensor 4; When the magnitude of voltage that described sample conversion circuit 23 exports described single-chip microcomputer 24 to is greater than default warning magnitude of voltage, described single-chip microcomputer 24 controls described prior-warning device 25 and sends alarm.

In the present embodiment, described temperature-compensation circuit 21 is mainly used in ensureing that described CO sensor 4 is operated within the scope of operating temperature ratings.The CO concentration of detection for detecting CO concentration, and is outputted to operational amplification circuit 22 with the form of voltage signal by CO sensor 4.When described CO sensor 4 is not operated in specified operating temperature range, the described CO concentration of detection will misalignment.

In the present embodiment, the voltage signal that described operational amplification circuit 22 is mainly used in described CO sensor 4 exports amplifies the sampling processing being convenient to the later stage.

In the present embodiment, the voltage signal that described sample conversion circuit 23 is mainly used in described operational amplification circuit amplifies is sampled, and convert the signal of sampling to magnitude of voltage and be sent to single-chip microcomputer 24, the signal after changing is the discernible level signal of single-chip microcomputer 24.

In the present embodiment, described single-chip microcomputer 24 judges after the voltage signal receiving described sample conversion circuit 23, judge whether the CO concentration that described CO sensor 4 detects reaches early warning value, after reaching early warning value, described single-chip microcomputer 24 will send control signal and control described prior-warning device 25 and send alarm; Otherwise do not send control signal.

CO concentration can be monitored at any time in the optional position of mine after miner puts on the shoes of present embodiment, can scope of activities be expanded, and independently checkout equipment of comparing, can reduce costs.

Further, be also connected with relay 26 between described single-chip microcomputer 24 and described prior-warning device 25, the folding of described relay 26 is controlled is formed on described single-chip microcomputer 24, and when described relay 26 closes, described prior-warning device 25 sends alarm.

In the present embodiment, relay 26 is adopted can to improve the alarm quality of described prior-warning device 25.

Further, described prior-warning device 25 can be given the alarm and can be given the alarm by luminescence by sound, and concrete described prior-warning device 25 can be loudspeaker or buzzer, can also be the LED of several different colours interval flashing.

Refer to Fig. 3 to Fig. 5, further, in the present embodiment, described CO sensor 4 is the MGS1100 model of motorola inc.

In the present embodiment, the test material in described CO sensor 4 is SnO2, and when this CO sensor 4 normally works, described SnO2 material must be in uniform temperature, and this CO sensor 4 comprises inner heating arrangement and external heating voltage for this reason.The resistance of described SnO2 material can change with CO concentration.

Described MGS1100 has 1 ~ No. 4 pin, is wherein connected heating voltage Vh between pin 2 with pin 4, and in sensor internal clamping is heating resistor, and this heating resistor is used for SnO2 heating materials.

In the middle of reality detects, described pin 3 adds work voltage vcc, described pin 1 output detections voltage, described detection voltage changes with the resistance value of described SnO2.

Further, described temperature-compensation circuit 21 at least comprises a thermistor.

Described in the drawings thermistor is RT, and the resistance of described resistance RT reduces when temperature raises, and raises when temperature reduces.The internal resistance of described CO sensor 4 is RS, the CO change in concentration that described resistance RS is examined.The load resistance of described CO sensor 4 is RL.

The above; for the person of ordinary skill of the art; can make other various corresponding change and distortion according to the technical solution of the utility model and technical conceive, and all these change and be out of shape the protection domain that all should belong to the utility model claim.

Claims (6)

1. harmful-gas detection function footwear, comprise shoes body, and described shoes body comprises sole and upper of a shoe, and described sole comprises the heel be positioned at below heel, it is characterized in that, described heel inside is provided with exposed aerial CO sensor; The middle part of described sole is provided with circuit unit and battery, and described circuit unit comprises the temperature-compensation circuit, operational amplification circuit, sample conversion circuit, single-chip microcomputer and the prior-warning device that are connected successively with described CO sensor; The CO concentration of detection for detecting CO concentration, and is outputted to described operational amplification circuit with the form of voltage signal and amplifies by described CO sensor; The voltage signal that sample conversion circuit is used for operational amplification circuit amplifies is sampled, and converts the signal of sampling to magnitude of voltage and be sent to described single-chip microcomputer; When the magnitude of voltage that described sample conversion circuit exports described single-chip microcomputer to is greater than default warning magnitude of voltage, described in described Single-chip Controlling, prior-warning device sends alarm.

2. harmful-gas detection function footwear according to claim 1, it is characterized in that, also be connected with relay between described single-chip microcomputer and described prior-warning device, the folding of described relay is controlled is formed on described single-chip microcomputer, and when described relay closes, described prior-warning device sends alarm.

3. harmful-gas detection function footwear according to claim 1 and 2, is characterized in that, described prior-warning device is buzzer or loudspeaker.

4. harmful-gas detection function footwear according to claim 1 and 2, is characterized in that, described prior-warning device is the LED of several different colours interval flashing.

5. harmful-gas detection function footwear according to claim 1, is characterized in that, described temperature-compensation circuit, for controlling the operating temperature of described CO sensor, makes it work in normal temperature range; Described temperature-compensation circuit at least comprises a thermistor.

6. harmful-gas detection function footwear according to claim 1, is characterized in that, described CO sensor is the MGS1100 model of motorola inc.