WO2014077430A1 - Breathalyzer having malfunction display function - Google Patents
Breathalyzer having malfunction display function Download PDFInfo
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- WO2014077430A1 WO2014077430A1 PCT/KR2012/009719 KR2012009719W WO2014077430A1 WO 2014077430 A1 WO2014077430 A1 WO 2014077430A1 KR 2012009719 W KR2012009719 W KR 2012009719W WO 2014077430 A1 WO2014077430 A1 WO 2014077430A1
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- alcohol
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/497—Physical analysis of biological material of gaseous biological material, e.g. breath
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/98—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving alcohol, e.g. ethanol in breath
Definitions
- the present invention relates to a breathalyzer with a malfunction display function, and more particularly, to a breathalyzer that determines whether a device malfunctions by using a detection signal in response to other gas particles in an exhalation and displays it externally. .
- the breathalyzer monitors the alcohol concentration (BAC) in response to the detection signal by detecting the alcohol particles contained in the exhalation when the subject measures the breathing apparatus and breathes the breath. Device.
- BAC alcohol concentration
- the conventional breathalyzer configured as described above operates when a breath is introduced into the breathing port so that the pump connected to the rear end of the breathing port is pumped and breathed into the alcohol sensor module to detect the breath.
- an object of the present invention is to detect the malfunction of the device caused by the failure of the pump and foreign matter on the exhalation injection line to the outside by displaying the malfunction of the breathalyzer It is to provide a breathalyzer with a malfunction indication function that can be confirmed immediately to measure the alcohol concentration more accurately.
- the breathing apparatus 170 in the breathalyzer to detect the alcohol particles contained in the breath of the subject flowing through the breathing apparatus 170 to display on the outside, the breathing apparatus 170 is in communication with the breathing inside An alcohol sensor module 110 which is injected into and reacts relatively sensitively with the alcohol particles contained in the exhalation, but reacts relatively insensitively with other gas particles other than the alcohol particles in the exhalation;
- the first magnification amplified signal is amplified by the first magnification so that the detection signal for the alcohol particles can be recognized, and the detection signal relative to the first magnification so that the detection signal for the other gas particles can be recognized.
- a breathalyzer comprising;
- the amplifying unit 120, the first amplifying circuit unit 121 for amplifying and outputting the detection signal from the alcohol sensor module 110 to a first magnification amplification signal, and the detection signal A second amplification circuit section 122 for amplifying and outputting a second magnification amplification signal, wherein the control unit 130, each amplification amplified from the first amplifying circuit section 121 and the second amplifying circuit section 122 Simultaneously receive the signal to determine the alcohol concentration and determine whether it is malfunctioning, extract the data value corresponding to the first magnification signal received from the previously stored alcohol concentration reference data to calculate the alcohol concentration of the exhalation, and detect other gas stored
- a breathalyzer is provided which compares a reference value with a received second magnification signal and determines whether there is a malfunction.
- the amplification unit 120 when the detection signal from the alcohol sensor module 110 receives a first magnification amplification signal, the error check signal of the control unit 130 ( When the E) is received, the circuit is configured to output the second magnification amplification signal, and the control unit 130 extracts a data value corresponding to the first magnification amplification signal received from the pre-stored alcohol concentration reference data to extract alcohol.
- the error check signal E
- a breathalyzer characterized in that by comparing the previously stored other gas detection reference value and the received second magnification signal to determine whether the malfunction.
- the pump malfunction and foreign matter on the inhalation line Due to this, it is possible to immediately check the malfunction state in which the subject's breath is not introduced to the alcohol sensor module, so that the alcohol concentration can be measured more accurately.
- the basic data for determining whether the breathalyzer is malfunctioning can be obtained through the OP amplifier circuit having a relatively simple circuit configuration, thereby reducing the manufacturing cost of the breathalyzer.
- one OP amplifier may output a first magnification signal for calculating alcohol concentration and a second magnification signal for determining malfunction, and each amplified signal may be sequentially analyzed to provide a low specification.
- Microprocessors can also be used to further reduce the manufacturing cost of breathalyzers.
- the analysis of the second magnification signal is performed while the first magnification signal is being analyzed, it is possible to first determine whether the device is malfunctioning, thereby displaying the malfunction state more quickly.
- FIG. 1 is a perspective view showing an external configuration of a breathalyzer according to a preferred embodiment of the present invention
- FIG. 2 is a schematic view showing a detailed configuration of a sensor module according to an embodiment of the present invention
- Figure 3a is a graph measuring the waveform of the detection signal in response to the alcohol particles
- Figure 3b is a graph measuring the waveform of the detection signal in response to other gas particles
- 4A is a graph measuring a waveform of amplifying a detection signal in response to an alcohol particle at a first magnification
- 4b is a graph measuring a waveform of amplifying a detection signal in response to an alcohol particle at a second magnification
- 5A is a circuit diagram illustrating a circuit configuration in which an amplifying unit includes two amplifying circuits according to a preferred embodiment of the present invention
- FIG. 5B is a flowchart for explaining an operation principle of the amplifier shown in FIG. 5A;
- 6A is a circuit diagram illustrating a circuit configuration in which an amplifier part includes one amplification circuit part according to a preferred embodiment of the present invention
- FIG. 6B is a flowchart for describing an operation principle of the amplifier shown in FIG. 6A.
- the alcohol sensor is sensitive to the alcohol particles contained in the exhalation, as well as nitrogen (N 2 ), oxygen contained in the exhalation Pump misoperation and exhalation by using insensitive response to other gas particles such as (O 2 ), moisture (H 2 O), hydrogen (H 2 ) and carbon oxide (CO x )
- N 2 nitrogen
- O 2 oxygen contained in the exhalation Pump misoperation and exhalation by using insensitive response to other gas particles such as (O 2 ), moisture (H 2 O), hydrogen (H 2 ) and carbon oxide (CO x )
- FIGS. 1 and 2 As shown in the alcohol sensor module 110, amplifying unit 120 and the control unit 130 is provided.
- the alcohol sensor module 110, the amplifying unit 120 and the control unit 130 is mounted inside the main body case 160 forming the appearance of the breathalyzer 100, the outside of the main body case 160
- a breathing port 170 that is an inlet of the breath of the subject, a display unit 140 displaying alcohol concentration and malfunction, and a speaker 141 that outputs the alcohol concentration and malfunction as a sound may be provided.
- the breathalyzer 100 according to a preferred embodiment of the present invention may be provided to transmit information on the alcohol concentration and malfunctions to other devices such as a smartphone through a wired or wireless network communication network.
- the alcohol sensor module 110 is in communication with the breathing port 170, the exhalation is injected into the inside, and reacts relatively sensitive to the alcohol particles contained in the exhalation to output a relatively large sense signal as shown in Figure 3a
- the breath of the subject does not include alcohol particles, as shown in Figure 3b and reacts relatively insensitive to other gas particles other than the alcohol particles in the breath, and outputs a sense signal of a weak size.
- one side of the alcohol sensor module 110 is in communication with the breathing port 170 is formed with an inlet 171 for injecting exhalation into the alcohol sensor module 110, the other side is a breath sensor injected into the alcohol sensor
- the pumping pipe 151 connected to the pump 150 is fastened so as to enter the pump 150 through the module 110, and the breathing port 170 is sucked into the inside by the pumping operation of the pump 150.
- the detection signal output from the alcohol sensor module 110 is transmitted to the control unit 130 via the amplification unit 120 connected to the rear end is used as basic data for measuring the alcohol concentration and malfunction of the device.
- the amplification unit 120 is connected to the alcohol sensor module 110 to receive the output detection signal, the amplification of the received detection signal at a magnification corresponding to the range that can be recognized by the controller 130 is configured to output As an element, amplifying the detection signal to a magnitude of the first magnification so as to detect alcohol particles contained in the breath of the subject to measure the alcohol concentration, and detect other gas particles contained in the breath to detect the alcohol concentration of the breathalyzer 100.
- the detection signal is amplified to a magnitude of a second magnification so as to determine whether a malfunction occurs, and the amplified first magnification amplification signal and the second magnification amplification signal are transmitted to the controller 130.
- the control unit may analyze the signal normally in a microprocessor such as the controller 130. Amplify at a first magnification (for example, 680 times), which is a size recognizable at 130.
- the second magnification for example, 1,500
- the control unit 130 can recognize it only after amplification.
- the detection signal and the detection signal is not detected alcohol alcohol (other gas In the case of a detection signal for detecting particles, the gap of the waveform is too large, and when amplifying the detection signal only at the first magnification as shown in FIG. 4A, it is not possible to analyze minute changes in the detection data caused by other gas particles.
- FIG. 4B when the detection signal is amplified at the second magnification so as to distinguish the detection data by the other gas particles, the range of the normal alcohol concentration analysis may be very narrow. Therefore, in the breathalyzer 100 according to the preferred embodiment of the present invention, the detection signal is different from the first magnification signal for use in alcohol concentration measurement and the second magnification signal for use in determining malfunction. Amplify to use.
- the controller 130 is connected to the amplifier 120 to receive the first magnification signal and the second magnification signal, and the alcohol concentration reference data for alcohol concentration calculation and other gas detection reference values for malfunction determination are
- the stored memory 132 is provided.
- the alcohol concentration data value corresponding to the second magnification amplification signal is extracted from the alcohol concentration reference data through waveform analysis of the received first magnification amplification signal, to calculate the alcohol concentration of the exhalation, and display it on the display unit 140. .
- the device operates normally to generate the other gas. Is determined, and if small, no other gas is detected, that is, no malfunction is introduced into the alcohol sensor module 110 due to a malfunction of the device, and thus the other gas is not detected. Indicates a malfunction.
- the amplifying unit 120 outputs a signal amplified at different magnifications such as the first magnification amplification signal and the second magnification amplification signal as described above, from the alcohol sensor module 110 as shown in FIG.
- the circuit is configured using two OP amplifiers U1 and U3 that amplify the detection signal at different magnifications, or at different magnifications according to the error check signal E of the controller 130 as shown in FIG. 6A.
- the circuit can be configured by using one OP amplifier U4 to amplify.
- the amplifier 120 amplifies the received detection signal into a first magnification amplification signal.
- a first amplifying circuit section 121 for outputting and a second amplifying circuit section 122 for amplifying the detection signal into a second magnification amplifying signal.
- the first amplification circuit unit 121, the OP amplifier (U1) is connected to the input terminal 131 of the output signal is input to the input terminal 131 of the alcohol sensor module 110
- the OP A resistor R3 and a resistor R4 are circuit-connected to a circuit line between an output terminal of the amplifier U1 and an input terminal 131 of the controller 130.
- the output voltage amplified by the first amplification circuit section 121 (Vout: the voltage of the first magnification amplification signal) is the magnitude of the resistance value of the resistors R3 and R4 as shown in Equation 1 below. It depends on.
- the second amplification circuit unit 122 is an OP amplifier (U3) and the output terminal is connected to the input terminal 131 of the control unit 130, the sensing signal of the alcohol sensor module 110 is input to the input terminal, the OP amplifier (U3) And a resistor (R6) and a resistor (R7) circuit-connected to the circuit line between the output terminal of the control unit and the input terminal 131 of the controller 130. Therefore, the output voltage amplified by the second amplification circuit section 122 (Vout: the voltage of the second magnification amplification signal) is the magnitude of the resistance value of the resistors R6 and R7 as shown in Equation 2 below. It depends on.
- the operation principle according to the circuit configuration of the amplifying unit 120 including the first amplifying circuit unit 121 and the second amplifying circuit unit 122 will be described with reference to FIG. 5B.
- the breath is introduced, the breath is injected into the alcohol sensor module 110 by the pumping operation of the pump 150.
- the controller 130 simultaneously receiving the first magnification signal and the second magnification signal from the amplifier 120 analyzes the waveform of each amplification signal (S240), and stores the other gas detection reference value and the second magnification amplification signal stored in advance. To determine whether the other gas is detected by comparing the (S250), if the other gas is not detected from the second magnification signal is determined to be a malfunction and displays a malfunction on the display unit 140 (S260), if the other gas is detected normal Judging by the operation, the alcohol concentration of the breath according to the analysis result of the first magnification signal is displayed on the display unit 140. (S270)
- the amplifier 120 when the amplifier 120 is configured using a single OP amplifier U4, the amplifier 120, the detection signal of the alcohol sensor module 110 is input to the input terminal, the output terminal is An OP amplifier U4 connected to the input terminal 131 of the controller 130, a resistor R10 circuit-connected to a circuit line between the output terminal of the OP amplifier U4 and the input terminal 131 of the controller 130, and Resistor R12, a resistor R11 circuit-connected between the circuit line between the resistors R10 and R12 and the other output terminal of the OP amplifier U4, and the resistor R12 and the controller 130.
- the circuit is connected to the output terminal (I / O) of the circuit is configured to include a transistor (Q1) is turned on by the error check signal (E) output from the controller 130.
- the output voltage (Vout: voltage of the first magnification signal) amplified by the amplifier 120 when the transistor Q1 is turned off because the error check signal E of the controller 130 is not received is As shown in Equation 3 below, it is determined and output according to the magnitude of each resistance value of the resistor R10, resistor R11, and resistor R12.
- the controller 130 operates to output an error check signal E according to a predetermined period to the input terminal of the transistor Q1 so that the second magnification signal can be monitored and analyzed while analyzing the first magnification signal.
- the output voltage Vout amplified by the amplifier 120 in the state where the transistor Q1 is turned off by the error check signal E is represented by Equation 4 below. Similarly, it is determined and output according to the magnitude of the resistance value of the composite resistor R 0 .
- the operation principle according to the circuit configuration of the amplifying unit 120 including the first amplifying circuit unit 121 and the second amplifying circuit unit 122 will be described with reference to FIG. 6B.
- the breath is introduced, the breath is injected into the alcohol sensor module 110 by the pumping operation of the pump 150 (S310). Subsequently, the alcohol sensor module 110 outputs a sensing signal having a magnitude corresponding to the degree of reaction while chemically reacting with the alcohol particles or other gas particles included in the exhalation to the amplification unit 120 (S320). 120 amplifies the received detection signal at a first magnification and outputs it to the controller 130 (S330).
- the controller 130 receiving the first magnification signal from the amplifier 120 may analyze the waveform of the first magnification signal and simultaneously monitor and analyze the waveform of the second magnification signal.
- the error check signal E is outputted to the transistor Q1 of FIG. 2) (S340), and the amplification unit 120 multiplies the detected signal received by the transistor Q1 by the second time by the error check signal E. Amplified by the output to the control unit 130 (S350).
- the controller 130 analyzes the previously stored other gas detection reference value and the second magnification amplification signal (S360), and determines whether to detect other gas from the second magnification amplification signal according to the analysis result (S370). If no other gas is detected from the amplified signal, it is determined to be a malfunction and a malfunction is displayed on the display unit 140 (S380). If the other gas is detected, it is determined to be normal operation and alcohol of the exhalation according to the analysis result of the first magnification amplification signal. The concentration is displayed on the display unit 140 (S390).
- Alcohol sensor using the detection signal in response to other gas particles other than alcohol particles included in the breath of the subject by the configuration and function of the breathalyzer 100 according to the preferred embodiment of the present invention as described above By determining and displaying whether or not normal exhalation is injected into the module 110, the malfunction state of the test subject does not flow into the alcohol sensor module 110 due to the failure of the pump 150 and the foreign matter on the exhalation injection line. It can be confirmed that the alcohol concentration can be measured more accurately.
- the manufacturing cost of the breathalyzer 100 can be reduced, as well as One OP amplifier U4 may be used to output a first magnification signal for calculating the alcohol concentration and a second magnification signal for determining malfunction, and each amplified signal is sequentially analyzed, resulting in low specification. It can also be processed with a microprocessor of the present invention provides an effect that can further reduce the manufacturing cost of the breathalyzer.
Abstract
According to characteristics of the present invention, provided is a breathalyzer for detecting alcohol particles, which is contained in the breath of a subject, introduced through a mouthpiece (170) and displaying the detected alcohol particles, the breathalyzer comprising: an alcohol sensor module (110) which is communicated to the mouthpiece (170) so as to allow the breath to be introduced thereto and which relatively and sensitively reacts to the alcohol particles contained in the breath and relatively and insensitively reacts to gas particles other than the alcohol particles in the breath so as to output a sensed signal; an amplification unit (120) for outputting a first magnification amplification signal obtained by amplifying the sensed signal by means of a first magnification so as to recognize the sensed signal for the alcohol particles and a second magnification amplification signal obtained by amplifying the sensed signal by means of a second magnification which is relatively higher than the first magnification so as to recognize the sensed signal for other gas particles; and a control unit (130) for calculating the alcohol concentration of the breath by means of the first magnification amplification signal, determining the malfunction of the breathalyzer based on whether other gases are detected by the second magnification amplification signal, and displaying the malfunction on a display unit (140).
Description
본 발명은 오작동 표시기능이 구비된 음주측정기에 관한 것으로, 보다 상세하게는 호기 중의 기타가스 입자에 대해 반응한 감지신호를 이용하여 기기의 오작동 여부를 판단하고 이를 외부로 표시하는 음주측정기에 관한 것이다.The present invention relates to a breathalyzer with a malfunction display function, and more particularly, to a breathalyzer that determines whether a device malfunctions by using a detection signal in response to other gas particles in an exhalation and displays it externally. .
일반적으로 음주측정기는 피측정자가 호흡구를 입에 물고 호기를 불어넣으면 내부에 장착된 알콜센서모듈이 호기 중에 포함된 알콜입자를 감지하여 감지신호에 대응되는 혈중 알콜농도(BAC)를 외부에 표시하는 장치이다.In general, the breathalyzer monitors the alcohol concentration (BAC) in response to the detection signal by detecting the alcohol particles contained in the exhalation when the subject measures the breathing apparatus and breathes the breath. Device.
이와 같이 구성된 종래의 음주측정기는 호흡구로 호기가 유입되면 호흡구의 후단에 연통되어 연결된 펌프가 펌핑 동작하면서 알콜센서모듈의 내부로 호기가 흡입되어 호기가 감지되도록 동작한다.The conventional breathalyzer configured as described above operates when a breath is introduced into the breathing port so that the pump connected to the rear end of the breathing port is pumped and breathed into the alcohol sensor module to detect the breath.
그러나, 상기 펌프의 고장으로 인해 펌핑 동작되지 않거나 흡입구를 포함한 주입라인 상에 피측정자의 침, 음식물 등의 이물질이 유입 및 누적되면서 호기가 알콜센서모듈의 내부로 흡입되지 않게 되어, 피측정자가 음주하여 알콜입자가 유입되었음에도 불구하고 이를 감지하지 못하여 알콜농도의 측정치가 '0'으로 표시되는 오작동이 발생하는 등 알콜농도의 측정이 제대로 이루어지지 않는 문제점이 있었다.However, due to the failure of the pump, the pumping operation is not performed or foreign substances such as saliva, food, etc. of the subject on the injection line including the suction port is accumulated and the breath is not sucked into the interior of the alcohol sensor module, the subject is drinking Therefore, although the alcohol particles were introduced, there was a problem in that the alcohol concentration was not properly measured, such as a malfunction occurs in which the measurement value of the alcohol concentration was indicated as '0'.
본 발명은 상술한 문제점을 해결하기 위하여 창출된 것으로, 본 발명의 목적은 펌프의 고장 및 호기 주입라인 상의 이물질로 인해 발생하는 기기의 오작동을 감지하여 외부에 표시함으로써, 측정자가 음주측정기의 오작동 상태를 즉각적으로 확인할 수 있어 알콜농도의 측정을 보다 정확하게 수행할 수 있는 오작동 표시기능이 구비된 음주측정기를 제공하는 것에 있다.The present invention was created to solve the above-mentioned problems, an object of the present invention is to detect the malfunction of the device caused by the failure of the pump and foreign matter on the exhalation injection line to the outside by displaying the malfunction of the breathalyzer It is to provide a breathalyzer with a malfunction indication function that can be confirmed immediately to measure the alcohol concentration more accurately.
본 발명의 특징에 따르면, 호흡구(170)를 통해 유입된 피측정자의 호기에 포함된 알콜입자를 감지하여 외부에 표시하는 음주측정기에 있어서, 상기 호흡구(170)와 연통되어 상기 호기가 내부로 주입되며, 상기 호기에 포함된 알콜입자와 상대적으로 민감하게 반응하되 상기 호기 중에서 상기 알콜입자 이외의 기타가스 입자와는 상대적으로 둔감하게 반응하여 감지신호를 출력하는 알콜센서모듈(110); 상기 알콜입자에 대한 감지신호가 인식될 수 있도록 감지신호를 제1배율로 증폭한 제1배율증폭 신호와, 상기 기타가스 입자에 대한 감지신호가 인식될 수 있도록 감지신호를 상기 제1배율보다 상대적으로 높은 배율을 갖는 제2배율로 증폭한 제2배율증폭 신호를 출력하는 증폭부(120); 및 상기 제1배율증폭 신호를 통해 호기의 알콜농도를 산출하며, 상기 제2배율증폭 신호를 통한 상기 기타가스의 검출 여부에 따라 기기의 오작동을 판단하여 표시부(140)에 표시하는 제어부(130);를 포함하는 음주측정기가 제공된다.According to a feature of the invention, in the breathalyzer to detect the alcohol particles contained in the breath of the subject flowing through the breathing apparatus 170 to display on the outside, the breathing apparatus 170 is in communication with the breathing inside An alcohol sensor module 110 which is injected into and reacts relatively sensitively with the alcohol particles contained in the exhalation, but reacts relatively insensitively with other gas particles other than the alcohol particles in the exhalation; The first magnification amplified signal is amplified by the first magnification so that the detection signal for the alcohol particles can be recognized, and the detection signal relative to the first magnification so that the detection signal for the other gas particles can be recognized. An amplifier 120 for outputting a second magnification amplified signal amplified by a second magnification having a high magnification; And a control unit 130 that calculates an alcohol concentration of the exhalation through the first magnification signal, and determines a malfunction of the device according to whether the other gas is detected through the second magnification signal and displays on the display unit 140. There is provided a breathalyzer comprising;
본 발명의 다른 특징에 따르면, 상기 증폭부(120)는, 상기 알콜센서모듈(110)로부터의 감지신호를 제1배율증폭 신호로 증폭하여 출력하는 제1증폭회로부(121) 및, 상기 감지신호를 제2배율증폭 신호로 증폭하여 출력하는 제2증폭회로부(122)를 포함하며, 상기 제어부(130)는, 상기 제1증폭회로부(121) 및 제2증폭회로부(122)로부터 증폭된 각 증폭신호를 동시에 수신하여 알콜농도 산출 및 오작동 여부를 판단하되, 기저장된 알콜농도 기준데이터로부터 수신된 제1배율증폭 신호와 대응되는 데이터값을 추출하여 호기의 알콜농도를 산출하며, 기저장된 기타가스 검출기준치와 수신된 제2배율증폭 신호를 비교하여 오작동 여부를 판단하는 것을 특징으로 하는 음주측정기가 제공된다.According to another feature of the invention, the amplifying unit 120, the first amplifying circuit unit 121 for amplifying and outputting the detection signal from the alcohol sensor module 110 to a first magnification amplification signal, and the detection signal A second amplification circuit section 122 for amplifying and outputting a second magnification amplification signal, wherein the control unit 130, each amplification amplified from the first amplifying circuit section 121 and the second amplifying circuit section 122 Simultaneously receive the signal to determine the alcohol concentration and determine whether it is malfunctioning, extract the data value corresponding to the first magnification signal received from the previously stored alcohol concentration reference data to calculate the alcohol concentration of the exhalation, and detect other gas stored A breathalyzer is provided which compares a reference value with a received second magnification signal and determines whether there is a malfunction.
본 발명의 또 다른 특징에 따르면, 상기 증폭부(120)는, 상기 알콜센서모듈(110)로부터의 감지신호가 수신되면 제1배율증폭 신호를 출력하고, 상기 제어부(130)의 에러체크 신호(E)가 수신되면 상기 제2배율증폭 신호를 출력하도록 회로구성되며, 상기 제어부(130)는, 기저장된 알콜농도 기준데이터로부터 수신된 제1배율증폭 신호와 대응되는 데이터값을 추출하여 호기의 알콜농도를 산출함과 더불어 상기 에러체크 신호(E)를 출력하며, 기저장된 기타가스 검출기준치와 수신된 제2배율증폭 신호를 비교하여 오작동 여부를 판단하는 것을 특징으로 하는 음주측정기가 제공된다.According to another feature of the invention, the amplification unit 120, when the detection signal from the alcohol sensor module 110 receives a first magnification amplification signal, the error check signal of the control unit 130 ( When the E) is received, the circuit is configured to output the second magnification amplification signal, and the control unit 130 extracts a data value corresponding to the first magnification amplification signal received from the pre-stored alcohol concentration reference data to extract alcohol. In addition to calculating the concentration and outputs the error check signal (E), there is provided a breathalyzer, characterized in that by comparing the previously stored other gas detection reference value and the received second magnification signal to determine whether the malfunction.
이상에서와 같이 본 발명에 의하면,As described above, according to the present invention,
첫째, 피측정자의 호기에 포함된 알콜입자 이외의 기타가스 입자에 대해 반응한 감지신호를 이용하여 알콜센서모듈 내부로의 호기 정상주입 여부를 판단 및 표시함으로써, 펌프의 고장 및 호기 주입라인 상의 이물질로 인해 알콜센서모듈에 피측정자의 호기가 유입되지 않는 오작동 상태를 즉각적으로 확인할 수 있어 알콜농도의 측정을 보다 정확하게 수행할 수 있다.First, by detecting and displaying whether the normal inhalation of the inhalation into the alcohol sensor module is detected by using a detection signal reacting to other gas particles other than the alcohol particles contained in the exhalation of the subject, the pump malfunction and foreign matter on the inhalation line Due to this, it is possible to immediately check the malfunction state in which the subject's breath is not introduced to the alcohol sensor module, so that the alcohol concentration can be measured more accurately.
둘째, 비교적 간소한 회로구성을 갖는 OP앰프 회로를 통해 상기 음주측정기의 오작동 여부를 판단하기 위한 기초데이터를 획득할 수 있으므로 음주측정기의 제조비용을 절감할 수 있다.Second, the basic data for determining whether the breathalyzer is malfunctioning can be obtained through the OP amplifier circuit having a relatively simple circuit configuration, thereby reducing the manufacturing cost of the breathalyzer.
셋째, 하나의 OP앰프를 이용하여 알콜농도를 산출하기 위한 제1배율증폭 신호 및 오작동 여부를 판단하기 위한 제2배율증폭 신호를 출력할 수 있으며, 각 증폭신호가 순차적으로 분석이 이루어지면서 저사양의 마이크로 프로세세로도 처리가 가능하므로 음주측정기의 제조비용을 더욱 절감할 수 있다.Third, one OP amplifier may output a first magnification signal for calculating alcohol concentration and a second magnification signal for determining malfunction, and each amplified signal may be sequentially analyzed to provide a low specification. Microprocessors can also be used to further reduce the manufacturing cost of breathalyzers.
또한, 제1배율증폭 신호의 분석이 이루어지는 동안에 제2배율증폭 신호의 분석이 이루어져 기기의 오작동 여부를 먼저 판단할 수 있으므로 보다 신속하게 오작동 상태를 표시할 수 있다.In addition, since the analysis of the second magnification signal is performed while the first magnification signal is being analyzed, it is possible to first determine whether the device is malfunctioning, thereby displaying the malfunction state more quickly.
도 1은 본 발명의 바람직한 실시예에 따른 음주측정기의 외부구성을 나타낸 사시도,1 is a perspective view showing an external configuration of a breathalyzer according to a preferred embodiment of the present invention;
도 2는 본 발명의 바람직한 실시예에 따른 센서모듈의 세부구성을 나타낸 개략도,2 is a schematic view showing a detailed configuration of a sensor module according to an embodiment of the present invention;
도 3a는 알콜입자에 반응한 감지신호의 파형을 측정한 그래프,Figure 3a is a graph measuring the waveform of the detection signal in response to the alcohol particles,
도 3b는 기타가스 입자에 반응한 감지신호의 파형을 측정한 그래프,Figure 3b is a graph measuring the waveform of the detection signal in response to other gas particles,
도 4a는 알콜입자에 반응한 감지신호를 제1배율로 증폭한 파형을 측정한 그래프,4A is a graph measuring a waveform of amplifying a detection signal in response to an alcohol particle at a first magnification;
도 4b는 알콜입자에 반응한 감지신호를 제2배율로 증폭한 파형을 측정한 그래프,4b is a graph measuring a waveform of amplifying a detection signal in response to an alcohol particle at a second magnification;
도 5a는 본 발명의 바람직한 실시예에 따른 증폭부가 두 개의 증폭회로로 이루어진 회로구성을 나타낸 회로도,5A is a circuit diagram illustrating a circuit configuration in which an amplifying unit includes two amplifying circuits according to a preferred embodiment of the present invention;
도 5b는 도 5a에 도시된 증폭부의 동작원리를 설명하기 위한 플로우차트,5B is a flowchart for explaining an operation principle of the amplifier shown in FIG. 5A;
도 6a는 본 발명의 바람직한 실시예에 따른 증폭부가 한 개의 증폭회로부로 이루어진 회로구성을 나타낸 회로도,6A is a circuit diagram illustrating a circuit configuration in which an amplifier part includes one amplification circuit part according to a preferred embodiment of the present invention;
도 6b는 도 6a에 도시된 증폭부의 동작원리를 설명하기 위한 플로우차트이다.FIG. 6B is a flowchart for describing an operation principle of the amplifier shown in FIG. 6A.
상술한 본 발명의 목적, 특징들 및 장점은 다음의 상세한 설명을 통하여 보다 분명해질 것이다. 이하, 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 설명하면 다음과 같다.The objects, features and advantages of the present invention described above will become more apparent from the following detailed description. Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
본 발명의 바람직한 실시예에 따른 오작동 표시기능이 구비된 음주측정기(100)는, 알콜센서가 호기에 포함된 알콜입자에 민감하게 반응할 뿐만 아니라, 상기 호기에 포함된 질소(N2), 산소(O2), 수분(H2O), 수소(H2) 및 산화탄소(COx) 등의 기타가스 입자에도 둔감하게 반응하여 미세 감지신호를 출력하는 것을 이용하여, 펌프의 구동불량 및 호기 주입라인 상의 이물질로 인해 알콜센서로 호기가 주입되지 않는 오작동 상태를 판단 및 외부로 표시함으로써 측정자가 음주측정기(100)의 오작동 상태를 즉각적으로 확인할 수 있도록 구비된 음주측정기로서, 도 1 및 도 2에 도시된 바와 같이 알콜센서모듈(110), 증폭부(120) 및 제어부(130)를 포함하여 구비된다. Breathalyzer 100 with a malfunction indication function according to a preferred embodiment of the present invention, the alcohol sensor is sensitive to the alcohol particles contained in the exhalation, as well as nitrogen (N 2 ), oxygen contained in the exhalation Pump misoperation and exhalation by using insensitive response to other gas particles such as (O 2 ), moisture (H 2 O), hydrogen (H 2 ) and carbon oxide (CO x ) As a breathalyzer provided to determine the malfunction state of the breathalyzer 100 by determining and displaying a malfunction state in which exhalation is not injected by the alcohol sensor due to a foreign substance on the injection line, FIGS. 1 and 2. As shown in the alcohol sensor module 110, amplifying unit 120 and the control unit 130 is provided.
여기서, 상기 알콜센서모듈(110), 증폭부(120) 및 제어부(130)는 음주측정기(100)의 외형을 형성하는 본체케이스(160)의 내부에 장착되며, 본체케이스(160)의 외부에는 피측정자의 호기가 유입되는 입구인 호흡구(170), 알콜농도 및 오작동이 디스플레이되는 표시부(140) 및, 알콜농도 및 오작동 여부를 음향으로 출력되는 스피커(141)가 구비될 수 있다. 또한, 본 발명의 바람직한 실시예에 따른 음주측정기(100)는 유,무선 네트워크 통신망을 통해 스마트폰과 같은 다른 기기로 알콜농도 및 오작동 여부에 대한 정보를 전송할 수 있도록 구비될 수도 있다.Here, the alcohol sensor module 110, the amplifying unit 120 and the control unit 130 is mounted inside the main body case 160 forming the appearance of the breathalyzer 100, the outside of the main body case 160 A breathing port 170 that is an inlet of the breath of the subject, a display unit 140 displaying alcohol concentration and malfunction, and a speaker 141 that outputs the alcohol concentration and malfunction as a sound may be provided. In addition, the breathalyzer 100 according to a preferred embodiment of the present invention may be provided to transmit information on the alcohol concentration and malfunctions to other devices such as a smartphone through a wired or wireless network communication network.
상기 알콜센서모듈(110)은, 호흡구(170)와 연통되어 호기가 내부로 주입되며, 호기에 포함된 알콜입자와 상대적으로 민감하게 반응하여 도 3a와 같이 상대적으로 큰 크기의 감지신호를 출력하는데 반하여, 피측정자의 호기에 알콜입자가 포함되지 않을 경우에는 도 3b와 같이 호기 중에서 상기 알콜입자 이외의 기타가스 입자와는 상대적으로 둔감하게 반응하면서 미약한 크기의 감지신호를 출력한다. 그리고, 알콜센서모듈(110)의 일측에는 상기 호흡구(170)와 연통되어 알콜센서모듈(110) 내부로 호기를 주입시키는 흡입구(171)가 형성되며, 타측에는 내부로 주입되는 호기가 알콜센서모듈(110)을 거쳐 펌프(150)로 유입되도록 상기 펌프(150)와 연통된 펌핑관(151)이 체결되어 상기 펌프(150)의 펌핑동작에 의해 호흡구(170)가 내부로 흡입된다. 또한, 상기 알콜센서모듈(110)에서 출력된 감지신호는 후단에 신호연결된 증폭부(120)를 거쳐 제어부(130)로 전달되어 알콜농도 측정 및 기기의 오작동을 검출하기 위한 기초데이터로 이용된다.The alcohol sensor module 110 is in communication with the breathing port 170, the exhalation is injected into the inside, and reacts relatively sensitive to the alcohol particles contained in the exhalation to output a relatively large sense signal as shown in Figure 3a On the other hand, when the breath of the subject does not include alcohol particles, as shown in Figure 3b and reacts relatively insensitive to other gas particles other than the alcohol particles in the breath, and outputs a sense signal of a weak size. In addition, one side of the alcohol sensor module 110 is in communication with the breathing port 170 is formed with an inlet 171 for injecting exhalation into the alcohol sensor module 110, the other side is a breath sensor injected into the alcohol sensor The pumping pipe 151 connected to the pump 150 is fastened so as to enter the pump 150 through the module 110, and the breathing port 170 is sucked into the inside by the pumping operation of the pump 150. In addition, the detection signal output from the alcohol sensor module 110 is transmitted to the control unit 130 via the amplification unit 120 connected to the rear end is used as basic data for measuring the alcohol concentration and malfunction of the device.
상기 증폭부(120)는 알콜센서모듈(110)과 신호연결되어 출력된 감지신호를 수신하며, 수신된 감지신호를 제어부(130)가 인식할 수 있는 범위에 해당하는 배율로 증폭시켜 출력하는 구성요소로서, 피측정자의 호기에 포함된 알콜입자를 감지하여 알콜농도를 측정할 수 있도록 감지신호를 제1배율의 크기로 증폭하고, 호기에 포함된 기타 가스입자를 감지하여 음주측정기(100)의 오작동 여부를 판단할 수 있도록 감지신호를 제2배율의 크기로 증폭하며, 증폭된 제1배율증폭 신호 및 제2배율증폭 신호를 제어부(130)로 전송한다.The amplification unit 120 is connected to the alcohol sensor module 110 to receive the output detection signal, the amplification of the received detection signal at a magnification corresponding to the range that can be recognized by the controller 130 is configured to output As an element, amplifying the detection signal to a magnitude of the first magnification so as to detect alcohol particles contained in the breath of the subject to measure the alcohol concentration, and detect other gas particles contained in the breath to detect the alcohol concentration of the breathalyzer 100. The detection signal is amplified to a magnitude of a second magnification so as to determine whether a malfunction occurs, and the amplified first magnification amplification signal and the second magnification amplification signal are transmitted to the controller 130.
통상적으로 음주측정기에 사용되는 알콜센서의 경우에는 감지신호의 크기가 수십 마이크로 볼트 또는 수 미리 볼트와 같이 매우 낮은 전압값을 갖기 때문에 제어부(130)와 같은 마이크로프로세서에서 정상적으로 감지신호를 분석하기 위해서는 제어부(130)에서 인식할 수 있는 크기인 제1배율(예를 들면 680배)로 증폭해야 한다. 또한, 상기 호기에 포함된 기타가스 입자의 경우에는 알콜입자와 비교하여 알콜센서(111)에 의해 감지되는 정도가 더욱 미미하기 때문에 상기 제1배율보다 더욱 높은 배율인 제2배율(예를 들면 1,500배)로 증폭해야만 상기 제어부(130)가 인식할 수 있다.In the case of an alcohol sensor typically used in a breathalyzer, since the magnitude of the detection signal has a very low voltage value, such as several tens of microvolts or several millivolts, the control unit may analyze the signal normally in a microprocessor such as the controller 130. Amplify at a first magnification (for example, 680 times), which is a size recognizable at 130. In addition, in the case of other gas particles contained in the exhalation, the second magnification (for example, 1,500) is higher than the first magnification because the degree of detection by the alcohol sensor 111 is smaller than that of the alcohol particles. The control unit 130 can recognize it only after amplification.
상기 증폭부(120)를 통해 알콜센서모듈(110)로부터 출력된 감지신호를 증폭함에 있어서, 도 3a 및 도 3b와 같이 알콜입자가 감지된 감지신호와 알콜입자가 감지되지 않은 감지신호(기타가스 입자를 감지한 감지신호)의 경우 그 파형의 격차가 지나치게 크기 때문에, 도 4a와 같이 상기 감지신호를 제1배율로만 증폭할 경우 기타가스 입자에 의한 감지데이터의 미세한 변화를 분석할 수 없는 문제점이 발생하게 되며, 도 4b와 같이 상기 기타가스 입자에 의한 감지데이터까지 구분할 수 있도록 감지신호를 제2배율로 증폭할 경우 정상 알콜농도 분석의 범위가 매우 좁아지는 문제점이 발생할 수 있다. 따라서, 본 발명의 바람직한 실시예에 따른 음주측정기(100)에서는 알콜농도 측정용으로 이용하기 위한 제1배율증폭 신호와 오작동 판단용으로 이용하기 위한 제2배율증폭 신호로 상기 감지신호를 서로 다른 배율로 증폭하여 이용하는 것이다.In amplifying the detection signal output from the alcohol sensor module 110 through the amplification unit 120, as shown in Figs. 3a and 3b, the detection signal and the detection signal is not detected alcohol alcohol (other gas In the case of a detection signal for detecting particles, the gap of the waveform is too large, and when amplifying the detection signal only at the first magnification as shown in FIG. 4A, it is not possible to analyze minute changes in the detection data caused by other gas particles. As shown in FIG. 4B, when the detection signal is amplified at the second magnification so as to distinguish the detection data by the other gas particles, the range of the normal alcohol concentration analysis may be very narrow. Therefore, in the breathalyzer 100 according to the preferred embodiment of the present invention, the detection signal is different from the first magnification signal for use in alcohol concentration measurement and the second magnification signal for use in determining malfunction. Amplify to use.
상기 제어부(130)는 증폭부(120)와 신호연결되어 상기 제1배율증폭 신호 및 제2배율증폭 신호를 수신하고, 알콜농도 산출을 위한 알콜농도 기준데이터와 오작동 판단을 위한 기타가스 검출기준치가 저장된 메모리(132)가 구비된다. 또한, 수신된 제1배율증폭 신호의 파형 분석을 통해 상기 알콜농도 기준데이터로부터 제2배율증폭 신호와 대응되는 알콜농도 데이터값을 추출하여 호기의 알콜농도를 산출하고 이를 표시부(140)에 표시한다. 그리고, 수신된 제2배율증폭 신호의 파형 분석을 통해 상기 기타가스 검출기준치와 제2배율증폭 신호의 크기를 비교하여, 제2배율증폭 신호의 크기가 큰 경우에는 기기가 정상작동하여 상기 기타가스가 검출된 것으로 판단하며, 작은 경우에는 기타가스가 검출되지 않은 것 즉, 기기의 오작동으로 인해 알콜센서모듈(110) 내부로 호기가 유입되지 않아 상기 기타가스가 검출되지 않은 것으로 판단하여 표시부(140)에 오작동을 표시한다.The controller 130 is connected to the amplifier 120 to receive the first magnification signal and the second magnification signal, and the alcohol concentration reference data for alcohol concentration calculation and other gas detection reference values for malfunction determination are The stored memory 132 is provided. In addition, the alcohol concentration data value corresponding to the second magnification amplification signal is extracted from the alcohol concentration reference data through waveform analysis of the received first magnification amplification signal, to calculate the alcohol concentration of the exhalation, and display it on the display unit 140. . And, by comparing the magnitude of the other gas detection reference value and the second magnification amplification signal by analyzing the waveform of the received second magnification amplification signal, when the magnitude of the second magnification amplification signal is large, the device operates normally to generate the other gas. Is determined, and if small, no other gas is detected, that is, no malfunction is introduced into the alcohol sensor module 110 due to a malfunction of the device, and thus the other gas is not detected. Indicates a malfunction.
한편, 증폭부(120)는 상술한 제1배율증폭 신호 및 제2배율증폭 신호와 같이 서로 다른 크기의 배율로 증폭된 신호를 출력할 수 있도록, 도 5a와 같이 알콜센서모듈(110)로부터의 감지신호를 서로 다른 크기의 배율로 증폭하는 두 개의 OP앰프(U1,U3)를 이용하여 회로구성되거나, 도 6a와 같이 제어부(130)의 에러체크 신호(E)에 따라 서로 다른 크기의 배율로 증폭하는 하나의 OP앰프(U4)를 이용하여 회로구성될 수 있다.Meanwhile, the amplifying unit 120 outputs a signal amplified at different magnifications such as the first magnification amplification signal and the second magnification amplification signal as described above, from the alcohol sensor module 110 as shown in FIG. The circuit is configured using two OP amplifiers U1 and U3 that amplify the detection signal at different magnifications, or at different magnifications according to the error check signal E of the controller 130 as shown in FIG. 6A. The circuit can be configured by using one OP amplifier U4 to amplify.
보다 구체적으로 설명하면, 먼저 두 개의 OP앰프(U1,U3)를 이용하여 회로구성되는 경우, 도 5a에 도시된 바와 같이 증폭부(120)는 수신된 감지신호를 제1배율증폭 신호로 증폭하여 출력하는 제1증폭회로부(121) 및, 상기 감지신호를 제2배율증폭 신호로 증폭하는 출력하는 제2증폭회로부(122)를 포함하여 구비된다. 여기서, 상기 제1증폭회로부(121)는, 알콜센서모듈(110)의 감지신호가 입력단으로 입력되며 출력단이 제어부(130)의 입력단(131)에 회로연결되는 OP앰프(U1)와, 상기 OP앰프(U1)의 출력단과 제어부(130)의 입력단(131) 사이의 회로라인에 회로연결된 저항(R3)과 저항(R4)을 포함하여 회로구성된다. 따라서, 제1증폭회로부(121)에 의해 증폭된 출력전압(Vout : 제1배율증폭 신호가 갖는 전압)은 아래의 [수식 1]과 같이 상기 저항(R3)과 저항(R4)의 저항값 크기에 따라 결정된다. More specifically, first, when the circuit is configured using two OP amplifiers U1 and U3, as shown in FIG. 5A, the amplifier 120 amplifies the received detection signal into a first magnification amplification signal. And a first amplifying circuit section 121 for outputting and a second amplifying circuit section 122 for amplifying the detection signal into a second magnification amplifying signal. Here, the first amplification circuit unit 121, the OP amplifier (U1) is connected to the input terminal 131 of the output signal is input to the input terminal 131 of the alcohol sensor module 110, the OP A resistor R3 and a resistor R4 are circuit-connected to a circuit line between an output terminal of the amplifier U1 and an input terminal 131 of the controller 130. Therefore, the output voltage amplified by the first amplification circuit section 121 (Vout: the voltage of the first magnification amplification signal) is the magnitude of the resistance value of the resistors R3 and R4 as shown in Equation 1 below. It depends on.
[수식 1][Equation 1]
상기 제2증폭회로부(122)는 알콜센서모듈(110)의 감지신호가 입력단으로 입력되며 출력단이 상기 제어부(130)의 입력단(131)에 연결되는 OP앰프(U3)와, 상기 OP앰프(U3)의 출력단과 제어부(130)의 입력단(131) 사이의 회로라인에 회로연결된 저항(R6)과 저항(R7)을 포함하여 회로구성된다. 따라서, 제2증폭회로부(122)에 의해 증폭된 출력전압(Vout : 제2배율증폭 신호가 갖는 전압)은 아래의 [수식 2]와 같이 상기 저항(R6)과 저항(R7)의 저항값 크기에 따라 결정된다.The second amplification circuit unit 122 is an OP amplifier (U3) and the output terminal is connected to the input terminal 131 of the control unit 130, the sensing signal of the alcohol sensor module 110 is input to the input terminal, the OP amplifier (U3) And a resistor (R6) and a resistor (R7) circuit-connected to the circuit line between the output terminal of the control unit and the input terminal 131 of the controller 130. Therefore, the output voltage amplified by the second amplification circuit section 122 (Vout: the voltage of the second magnification amplification signal) is the magnitude of the resistance value of the resistors R6 and R7 as shown in Equation 2 below. It depends on.
[수식 2][Formula 2]
이와 같이, 상기 제1증폭회로부(121) 및 제2증폭회로부(122)로 이루어진 증폭부(120)의 회로구성에 따른 동작원리를 도 5b를 참조하여 설명하면, 먼저 호흡구(170)를 통해 호기가 유입되면 펌프(150)의 펌핑동작에 의해 알콜센서모듈(110)의 내부로 호기가 주입된다.(S210) 이어서, 알콜센서모듈(110)에서 호기에 포함된 알콜입자 또는 기타가스 입자와 화학적으로 반응하면서 반응한 정도에 대응하는 크기를 갖는 감지신호를 증폭부(120)의 제1증폭회로부(121) 및 제2증폭회로부(122)로 동시 출력하며(S220), 제1증폭회로부(121)는 감지신호를 제1배율증폭 신호로 증폭하고 제2증폭회로부(122)는 감지신호를 제2배율로 증폭하여 제어부(130)로 출력한다.(S230)As described above, the operation principle according to the circuit configuration of the amplifying unit 120 including the first amplifying circuit unit 121 and the second amplifying circuit unit 122 will be described with reference to FIG. 5B. When the breath is introduced, the breath is injected into the alcohol sensor module 110 by the pumping operation of the pump 150. (S210) Next, the alcohol sensor module 110 and the alcohol particles or other gas particles contained in the breath While simultaneously reacting chemically, a detection signal having a magnitude corresponding to the reaction degree is simultaneously output to the first amplifier circuit 121 and the second amplifier circuit 122 of the amplifier 120 (S220), and the first amplifier circuit unit ( 121 amplifies the detection signal to the first magnification amplification signal, and the second amplification circuit unit 122 amplifies the detection signal to the second magnification and outputs the signal to the controller 130 (S230).
증폭부(120)로부터 제1배율증폭 신호 및 제2배율증폭 신호를 동시에 수신한 제어부(130)는 각 증폭신호의 파형을 분석하며(S240), 기저장된 기타가스 검출기준치와 제2배율증폭 신호를 비교하여 기타가스 검출 여부를 판단하되(S250), 제2배율증폭 신호로부터 기타가스가 검출되지 않으면 오작동으로 판단하여 표시부(140)에 오작동을 표시하고(S260), 상기 기타가스가 검출되면 정상작동으로 판단하여 제1배율증폭 신호의 분석결과에 따른 호기의 알콜농도를 표시부(140)에 표시한다.(S270)The controller 130 simultaneously receiving the first magnification signal and the second magnification signal from the amplifier 120 analyzes the waveform of each amplification signal (S240), and stores the other gas detection reference value and the second magnification amplification signal stored in advance. To determine whether the other gas is detected by comparing the (S250), if the other gas is not detected from the second magnification signal is determined to be a malfunction and displays a malfunction on the display unit 140 (S260), if the other gas is detected normal Judging by the operation, the alcohol concentration of the breath according to the analysis result of the first magnification signal is displayed on the display unit 140. (S270)
다음으로, 상기 증폭부(120)가 하나의 OP앰프(U4)를 이용하여 회로구성되는 경우에는, 상기 증폭부(120)는, 알콜센서모듈(110)의 감지신호가 입력단으로 입력되며 출력단이 상기 제어부(130)의 입력단(131)에 연결되는 OP앰프(U4)와, 상기 OP앰프(U4)의 출력단과 제어부(130)의 입력단(131) 사이의 회로라인에 회로연결된 저항(R10) 및 저항(R12)과, 상기 저항(R10)과 저항(R12) 사이의 회로라인과 상기 OP앰프(U4)의 다른 출력단 사이에 회로연결된 저항(R11) 및, 상기 저항(R12)과 제어부(130)의 출력단(I/O) 사이에 회로연결되며 상기 제어부(130)로부터 출력되는 에러체크 신호(E)에 의해 턴온 동작하는 트랜지스터(Q1)를 포함하여 회로구성된다.Next, when the amplifier 120 is configured using a single OP amplifier U4, the amplifier 120, the detection signal of the alcohol sensor module 110 is input to the input terminal, the output terminal is An OP amplifier U4 connected to the input terminal 131 of the controller 130, a resistor R10 circuit-connected to a circuit line between the output terminal of the OP amplifier U4 and the input terminal 131 of the controller 130, and Resistor R12, a resistor R11 circuit-connected between the circuit line between the resistors R10 and R12 and the other output terminal of the OP amplifier U4, and the resistor R12 and the controller 130. The circuit is connected to the output terminal (I / O) of the circuit is configured to include a transistor (Q1) is turned on by the error check signal (E) output from the controller 130.
따라서, 제어부(130)의 에러체크 신호(E)가 수신되지 않아 트랜지스터(Q1)가 턴오프된 상태의 증폭부(120)에서 증폭된 출력전압(Vout : 제1배율증폭 신호가 갖는 전압)은 아래의 [수식 3]과 같이 상기 저항(R10), 저항(R11), 저항(R12)의 각 저항값의 크기에 따라 결정되어 출력된다.Accordingly, the output voltage (Vout: voltage of the first magnification signal) amplified by the amplifier 120 when the transistor Q1 is turned off because the error check signal E of the controller 130 is not received is As shown in Equation 3 below, it is determined and output according to the magnitude of each resistance value of the resistor R10, resistor R11, and resistor R12.
[수식 3][Equation 3]
한편, 제어부(130)는 제1배율증폭 신호를 분석하는 중에 제2배율증폭 신호를 모니터링하여 분석할 수 있도록 트랜지스터(Q1)의 입력단으로 일정주기에 따른 에러체크 신호(E)를 출력하도록 동작하는데, 상기 에러체크 신호(E)에 의해 트랜지스터(Q1)가 턴오프된 상태의 증폭부(120)에서 증폭된 출력전압(Vout : 제2배율증폭 신호가 갖는 전압)은 아래의 [수식 4]과 같이 합성저항(R0)의 저항값의 크기에 따라 결정되어 출력된다.Meanwhile, the controller 130 operates to output an error check signal E according to a predetermined period to the input terminal of the transistor Q1 so that the second magnification signal can be monitored and analyzed while analyzing the first magnification signal. The output voltage Vout amplified by the amplifier 120 in the state where the transistor Q1 is turned off by the error check signal E is represented by Equation 4 below. Similarly, it is determined and output according to the magnitude of the resistance value of the composite resistor R 0 .
[수식 4][Equation 4]
이와 같이, 상기 제1증폭회로부(121) 및 제2증폭회로부(122)로 이루어진 증폭부(120)의 회로구성에 따른 동작원리를 도 6b를 참조하여 설명하면, 먼저 호흡구(170)를 통해 호기가 유입되면 펌프(150)의 펌핑동작에 의해 알콜센서모듈(110)의 내부로 호기가 주입된다(S310). 이어서, 알콜센서모듈(110)에서 호기에 포함된 알콜입자 또는 기타가스 입자와 화학적으로 반응하면서 반응한 정도에 대응하는 크기를 갖는 감지신호를 증폭부(120)로 출력하며(S320), 증폭부(120)는 수신한 감지신호를 제1배율로 증폭하여 제어부(130)로 출력한다(S330). 또한, 증폭부(120)로부터 제1배율증폭 신호를 수신한 제어부(130)는 제1배율증폭 신호의 파형을 분석하면서 동시에 제2배율증폭 신호의 파형을 모니터링하며 분석할 수 있도록 증폭부(120)의 트랜지스터(Q1)로 에러체크 신호(E)를 출력하며(S340), 상기 에러체크 신호(E)에 의해 증폭부(120)는 트랜지스터(Q1)가 턴온되면서 수신된 감지신호를 제2배율로 증폭하여 제어부(130)로 출력한다(S350).As described above, the operation principle according to the circuit configuration of the amplifying unit 120 including the first amplifying circuit unit 121 and the second amplifying circuit unit 122 will be described with reference to FIG. 6B. When the breath is introduced, the breath is injected into the alcohol sensor module 110 by the pumping operation of the pump 150 (S310). Subsequently, the alcohol sensor module 110 outputs a sensing signal having a magnitude corresponding to the degree of reaction while chemically reacting with the alcohol particles or other gas particles included in the exhalation to the amplification unit 120 (S320). 120 amplifies the received detection signal at a first magnification and outputs it to the controller 130 (S330). Also, the controller 130 receiving the first magnification signal from the amplifier 120 may analyze the waveform of the first magnification signal and simultaneously monitor and analyze the waveform of the second magnification signal. The error check signal E is outputted to the transistor Q1 of FIG. 2) (S340), and the amplification unit 120 multiplies the detected signal received by the transistor Q1 by the second time by the error check signal E. Amplified by the output to the control unit 130 (S350).
상기 제어부(130)는 기저장된 기타가스 검출기준치와 제2배율증폭 신호를 분석하며(S360), 분석한 결과에 따라 제2배율증폭 신호로부터 기타가스 검출 여부를 판단하되(S370), 제2배율증폭 신호로부터 기타가스가 검출되지 않으면 오작동으로 판단하여 표시부(140)에 오작동을 표시하고(S380), 상기 기타가스가 검출되면 정상작동으로 판단하여 제1배율증폭 신호의 분석결과에 따른 호기의 알콜농도를 표시부(140)에 표시한다(S390).The controller 130 analyzes the previously stored other gas detection reference value and the second magnification amplification signal (S360), and determines whether to detect other gas from the second magnification amplification signal according to the analysis result (S370). If no other gas is detected from the amplified signal, it is determined to be a malfunction and a malfunction is displayed on the display unit 140 (S380). If the other gas is detected, it is determined to be normal operation and alcohol of the exhalation according to the analysis result of the first magnification amplification signal. The concentration is displayed on the display unit 140 (S390).
상술한 바와 같은 본 발명의 바람직한 실시예에 따른 음주측정기(100)의 각 구성 및 기능에 의해, 피측정자의 호기에 포함된 알콜입자 이외의 기타가스 입자에 대해 반응한 감지신호를 이용하여 알콜센서모듈(110) 내부로의 호기 정상주입 여부를 판단 및 표시함으로써, 펌프(150)의 고장 및 호기 주입라인 상의 이물질로 인해알콜센서모듈(110)에 피측정자의 호기가 유입되지 않는 오작동 상태를 즉각적으로 확인할 수 있어 알콜농도의 측정을 보다 정확하게 수행할 수 있다.Alcohol sensor using the detection signal in response to other gas particles other than alcohol particles included in the breath of the subject by the configuration and function of the breathalyzer 100 according to the preferred embodiment of the present invention as described above By determining and displaying whether or not normal exhalation is injected into the module 110, the malfunction state of the test subject does not flow into the alcohol sensor module 110 due to the failure of the pump 150 and the foreign matter on the exhalation injection line. It can be confirmed that the alcohol concentration can be measured more accurately.
또한, 비교적 간소한 회로구성을 갖는 OP앰프 회로를 통해 상기 음주측정기(100)의 오작동 여부를 판단하기 위한 기초데이터를 획득할 수 있으므로 음주측정기(100)의 제조비용을 절감할 수 있음은 물론, 하나의 OP앰프(U4)를 이용하여 알콜농도를 산출하기 위한 제1배율증폭 신호 및 오작동 여부를 판단하기 위한 제2배율증폭 신호를 출력할 수 있고 각 증폭신호가 순차적으로 분석이 이루어짐에 따라 저사양의 마이크로 프로세세로도 처리가 가능하므로 음주측정기의 제조비용을 더욱 절감할 수 있는 효과를 제공한다.In addition, since the basic data for determining whether the breathalyzer 100 is malfunctioning can be obtained through the OP amplifier circuit having a relatively simple circuit configuration, the manufacturing cost of the breathalyzer 100 can be reduced, as well as One OP amplifier U4 may be used to output a first magnification signal for calculating the alcohol concentration and a second magnification signal for determining malfunction, and each amplified signal is sequentially analyzed, resulting in low specification. It can also be processed with a microprocessor of the present invention provides an effect that can further reduce the manufacturing cost of the breathalyzer.
이상에서 설명한 본 발명은 전술한 실시예 및 첨부된 도면에 의해 한정되는 것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 변형 및 변경이 가능함은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 명백할 것이다.The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge.
Claims (3)
- 호흡구(170)를 통해 유입된 피측정자의 호기에 포함된 알콜입자를 감지하여 외부에 표시하는 음주측정기에 있어서,In the breathalyzer to detect the alcohol particles contained in the breath of the subject flowing through the breathing apparatus 170 and displayed on the outside,상기 호흡구(170)와 연통되어 상기 호기가 내부로 주입되며, 상기 호기에 포함된 알콜입자와 상대적으로 민감하게 반응하되 상기 호기 중에서 상기 알콜입자 이외의 기타가스 입자와는 상대적으로 둔감하게 반응하여 감지신호를 출력하는 알콜센서모듈(110);In communication with the breathing port 170, the exhalation is injected into the inside, and reacts relatively sensitive to the alcohol particles contained in the exhalation, but relatively insensitive to other gas particles other than the alcohol particles in the exhalation Alcohol sensor module 110 for outputting a detection signal;상기 알콜입자에 대한 감지신호가 인식될 수 있도록 감지신호를 제1배율로 증폭한 제1배율증폭 신호와, 상기 기타가스 입자에 대한 감지신호가 인식될 수 있도록 감지신호를 상기 제1배율보다 상대적으로 높은 배율을 갖는 제2배율로 증폭한 제2배율증폭 신호를 출력하는 증폭부(120); 및The first magnification amplified signal is amplified by the first magnification so that the detection signal for the alcohol particles can be recognized, and the detection signal relative to the first magnification so that the detection signal for the other gas particles can be recognized. An amplifier 120 for outputting a second magnification amplified signal amplified by a second magnification having a high magnification; And상기 제1배율증폭 신호를 통해 호기의 알콜농도를 산출하며, 상기 제2배율증폭 신호를 통한 상기 기타가스의 검출 여부에 따라 기기의 오작동을 판단하여 표시부(140)에 표시하는 제어부(130);를 포함하는 음주측정기.A control unit 130 for calculating the alcohol concentration of the exhalation through the first magnification signal, and determining a malfunction of the device according to whether the other gas is detected through the second magnification signal and displaying on the display unit 140; Breathalyzer comprising a.
- 제 1항에 있어서,The method of claim 1,상기 증폭부(120)는, 상기 알콜센서모듈(110)로부터의 감지신호를 제1배율증폭 신호로 증폭하여 출력하는 제1증폭회로부(121) 및, 상기 감지신호를 제2배율증폭 신호로 증폭하여 출력하는 제2증폭회로부(122)를 포함하며,The amplifying unit 120 amplifies the first amplification circuit unit 121 to amplify and outputs a detection signal from the alcohol sensor module 110 to a first magnification amplification signal, and amplifies the detection signal to a second magnification amplification signal. And a second amplifying circuit unit 122 outputting the same.상기 제어부(130)는, 상기 제1증폭회로부(121) 및 제2증폭회로부(122)로부터 증폭된 각 증폭신호를 동시에 수신하여 알콜농도 산출 및 오작동 여부를 판단하되, 기저장된 알콜농도 기준데이터로부터 수신된 제1배율증폭 신호와 대응되는 데이터값을 추출하여 호기의 알콜농도를 산출하며, 기저장된 기타가스 검출기준치와 수신된 제2배율증폭 신호를 비교하여 오작동 여부를 판단하는 것을 특징으로 하는 음주측정기.The control unit 130 receives the amplified signals amplified from the first amplifying circuit section 121 and the second amplifying circuit section 122 at the same time to determine the alcohol concentration calculation and malfunction, but from the previously stored alcohol concentration reference data The alcohol concentration of the exhalation is calculated by extracting a data value corresponding to the received first magnification signal, and comparing the previously stored other gas detection reference value with the received second magnification signal to determine whether there is a malfunction. Measuring instrument.
- 제 1항에 있어서,The method of claim 1,상기 증폭부(120)는, 상기 알콜센서모듈(110)로부터의 감지신호가 수신되면 제1배율증폭 신호를 출력하고, 상기 제어부(130)의 에러체크 신호(E)가 수신되면 상기 제2배율증폭 신호를 출력하도록 회로구성되며,The amplification unit 120 outputs a first magnification amplification signal when a detection signal from the alcohol sensor module 110 is received, and when the error check signal E of the control unit 130 is received, the amplification unit 120 receives the second magnification. Is configured to output an amplified signal,상기 제어부(130)는, 기저장된 알콜농도 기준데이터로부터 수신된 제1배율증폭 신호와 대응되는 데이터값을 추출하여 호기의 알콜농도를 산출함과 더불어 상기 에러체크 신호(E)를 출력하며, 기저장된 기타가스 검출기준치와 수신된 제2배율증폭 신호를 비교하여 오작동 여부를 판단하는 것을 특징으로 하는 음주측정기.The controller 130 extracts a data value corresponding to the first magnification amplification signal received from the previously stored alcohol concentration reference data, calculates the alcohol concentration of the breath, and outputs the error check signal E. And measuring the malfunction of the gas by comparing the stored other gas detection reference value with the received second magnification amplification signal.
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| KR20000038728A (en) * | 1998-12-08 | 2000-07-05 | 이철호 | Drunkometer |
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