CN112767948A - Sound gas composite detection method - Google Patents
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Abstract
The invention provides a sound gas composite detection method, which comprises the following steps: receiving a sound signal to be detected of a user and gas to be detected; detecting the sound signal to be detected to limit the actual detection distance of the user; detecting the gas to be detected to generate a gas detection result; detecting the voiceprint information of the sound signal to be detected under the condition that the actual detection distance does not exceed a preset detection distance so as to generate a voiceprint recognition result; and generating a composite detection result based on the gas detection result and the voiceprint recognition result. The sound and gas composite detection method detects sound signals to identify the identity of a user, and simultaneously collects and detects gas to be detected to generate a gas detection result to judge the body state of the user, so that the effect of simultaneously detecting sound and gas is realized.
Description
Technical Field
The invention relates to the technical field of detection, in particular to a sound and gas composite detection method.
Background
Various sensors have been widely used in industrial production and daily life. Sound detection and in particular voiceprint recognition techniques are important for some areas where security requirements are high. In addition, some working properties or working environments have requirements on the physical conditions of workers, such as the industrial and mining environments have strict requirements on the alcohol content in the bodies of the workers, and further, such as some medical working environments also have specific requirements on the physical states of medical workers, and the working environments and the working properties have high requirements on detection accuracy so as to avoid causing adverse consequences. At present, most detection means use a detection instrument of a single sensor to realize single feature detection, such as voiceprint recognition detection, face recognition detection, alcohol content detection, body temperature detection and the like. If the detection requirements for multiple characteristics need to be met at the same time, the detection efficiency for detecting the corresponding characteristics one by adopting various single sensors is low.
Disclosure of Invention
In view of the above, the present invention provides an efficient sound-gas composite detection method.
In order to achieve the purpose of the invention, a sound and gas composite detection method is provided. The sound gas composite detection method comprises the following steps: receiving a sound signal to be detected of a user and gas to be detected; detecting the sound signal to be detected to limit a preset detection distance of the user; detecting the gas to be detected to generate a gas detection result; detecting the voiceprint information of the sound signal to be detected under the condition that the actual detection distance does not exceed the preset detection distance so as to generate a voiceprint recognition result; and generating a composite detection result based on the gas detection result and the voiceprint recognition result.
Optionally, the step of detecting the sound signal to define a preset detection distance of the user further comprises: acquiring the actual detection distance of the user; judging whether the actual detection distance exceeds the preset detection distance; if the actual detection distance exceeds the preset detection distance, performing noise reduction processing on the sound signal to be detected to generate a noise reduction sound signal, and entering a volume judgment step; and if the actual detection distance does not exceed the preset detection distance, entering the volume size judgment step.
Optionally, the volume level determining step further includes: judging whether the volume of the sound signal to be detected or the noise reduction sound signal is lower than a preset standard volume; if the volume is lower than the preset standard volume, informing the user that the detection distance is too far and the retest is needed, and returning to the step of receiving the sound signal to be detected and the gas to be detected of the user; and if the actual detection distance is not less than the preset standard volume, detecting the voiceprint information of the sound signal to be detected to generate a voiceprint identification result under the condition that the actual detection distance is not more than the preset detection distance.
Optionally, the receiving the user sound signal to be tested and the gas to be tested further comprises: outputting detection guide information to the user; receiving the user input instruction; outputting random password information to the user, and guiding the user to read the random password information; and collecting the sound signal to be detected sent out when the user reads.
Optionally, the step of detecting the gas to be detected to generate a gas detection result further comprises: starting the air pump to provide active air suction power; detecting the gas to be detected exhaled by the user during reading to generate gas detection data; judging whether the gas detection result passes or not; if the result passes, entering a step of generating a composite detection result based on the gas detection result and the voiceprint recognition result; if not, sending an alarm signal, and simultaneously entering the step to generate a composite detection result based on the gas detection result and the voiceprint recognition result; wherein the gas detection data is alcohol concentration.
Optionally, the step of determining whether the gas detection result passes the steps of: comparing the gas detection parameters with preset standard parameters; if the gas detection parameter does not exceed the preset standard parameter, the gas detection result is passed; and if the gas detection parameter exceeds the preset standard parameter, the gas detection result is failed.
Optionally, the step of detecting the voiceprint information of the sound signal to be detected to generate a voiceprint recognition result under the condition that the actual detection distance does not exceed a preset detection distance further includes: calling a preset user standard voiceprint signal; judging whether the voiceprint recognition result passes or not; if the result passes, entering a step of generating a composite detection result based on the gas detection result and the voiceprint recognition result; and if not, entering a step of generating a composite detection result based on the gas detection result and the voiceprint recognition result.
Optionally, the step of determining whether the voiceprint recognition result passes the steps of: comparing whether the sound signal to be detected or the noise reduction sound signal is matched with the preset standard voiceprint signal or not; if the voice print identification result is matched with the voice print identification result, the voice print identification result is passed; and if the two voice print identification results are not matched, the voice print identification result is failed.
Optionally, the step of generating a composite detection result based on the gas detection result and the voiceprint recognition result further comprises: judging whether the composite detection result passes or not; if the user passes the authentication, outputting a composite detection result of 'identity authentication passing' to the user; recording operation information; and if not, outputting the 'identity authentication failed' composite detection result to the user, and returning to the step to output detection guide information to the user.
Optionally, the determining whether the composite detection result passes or not includes: judging whether the gas detection result and the voiceprint recognition result pass or not; if the two pass, the composite detection result is a pass; if not, the composite detection result is not passed.
The sound and gas composite detection method provided by the invention detects the sound signal to identify the identity of the user, and simultaneously collects and detects the gas to be detected to generate a gas detection result to judge the body state of the user, thereby realizing the effect of simultaneously detecting the sound and the gas. In addition, the gas detection accuracy is improved by the limiting effect of the sound gas composite detection method on the preset detection distance of the user, and the composite detection accuracy is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting on the present invention.
Fig. 1 is a schematic diagram of a sound and gas composite detection apparatus according to an embodiment of the present invention.
Fig. 2 is a detailed schematic diagram of the sound gas composite detection device shown in fig. 1.
Fig. 3 is a flowchart of a sound-gas composite detection method according to an embodiment of the present invention.
Fig. 4 is a specific flowchart of the sound gas composite detection method shown in fig. 3.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Referring to fig. 1, a sound-gas composite detection apparatus 900 according to an embodiment of the present invention is configured to detect a sound signal to be detected sent by a user, generate a voiceprint recognition result by determining a voiceprint, detect a gas to be detected exhaled by the user to generate a gas detection result, and generate a composite detection result based on the voiceprint recognition result and the gas detection result, that is, whether identity authentication is passed or not. The sound and gas composite detection device 900 includes a human-computer interaction module 100, a sound collection module 200, a gas detection module 300, and a main control system module 400. The human-computer interaction module 100 is configured to provide the detection guidance information, the distance prompt information, the composite detection result, and the result of the failed gas detection of the sound gas composite detection apparatus 900 to the user, and receive an input instruction of the user. And the user produces sound under the guidance of the detection guide information to generate a sound signal to be detected and exhales gas to be detected. In the present embodiment, the detection guidance information is expressed as: requesting a user to input an instruction to start a detection program, displaying random password information to the user, and requesting the user to read the random password information; in other embodiments, the detection guidance information may also be represented by initiating the detection procedure in other ways, or asking the user to speak other content, or perform other related operations. The sound collection module 200 is configured to receive an input instruction from the human-computer interaction module 100, start collecting and detecting a sound signal to be detected, and transmit the collected sound signal to be detected to the main control system module 400. The sound collection module 200 is also used to define a preset detection distance for the user. When detecting that the detection distance between the user and the sound gas composite detection device 900 exceeds the preset detection distance, the sound collection module 200 performs noise reduction processing on the sound signal to be detected to generate a noise reduction sound signal, and transmits the noise reduction sound signal to the main control system module 400; the sound collection module 200 directly transmits the sound signal to be detected to the main control system module 400 when detecting that the detection distance between the user and the sound gas composite detection device 900 is not more than the preset detection distance. The main control system module 400 determines the volume based on the preset standard volume after receiving the sound signal to be detected or the noise reduction sound signal, generates a distance prompt signal when the sound signal to be detected or the noise reduction sound signal is lower than the preset standard volume, and transmits the distance prompt signal to the human-computer interaction module 100 to prompt the user to approach the sound gas composite detection device 900. The human-computer interaction module 100 outputs distance prompt information to the user based on the distance prompt signal. The gas detection module 300 is configured to collect and detect the gas to be detected to generate gas detection data, and send the gas detection data to the main control system module 400.
The main control system module 400 is configured to receive a sound signal to be detected or a noise reduction sound signal and gas detection data, determine a volume of the sound signal to be detected or the noise reduction sound signal, generate a distance prompt signal when the volume of the noise reduction sound signal is lower than a preset standard volume, transmit the distance prompt signal to the human-computer interaction module 100, analyze the sound signal to be detected to generate a voiceprint recognition result when the volume of the sound signal to be detected is not lower than the preset standard volume, and analyze the gas detection data to generate a gas detection result. The main control system module 400 further generates a composite detection result based on the voiceprint recognition result and the gas detection result, and outputs the composite detection result to the human-computer interaction module 100. The gas detection result comprises that the gas detection is passed and not passed, the voiceprint recognition result comprises that the voiceprint recognition is passed and not passed, and the composite detection result also comprises that the composite detection is passed and not passed. In this embodiment, the passing of the composite detection is represented as passing of the authentication, and the failing of the composite detection is represented as failing of the authentication. In this embodiment, the master control system module 400 generates a result that the composite detection passes only when the gas detection passes and the voiceprint recognition passes, and the master control system module 400 generates a result that the composite detection fails in other cases. In this embodiment, the main control system module 400 is a microprocessor.
Further reference is made to fig. 2 for more specific structure of this embodiment. The human-computer interaction module 100 includes a touch display module 110 and a speaker 120. The touch display module 110 is configured to display detection guide information, distance prompt information, and a composite detection result to a user, receive an input instruction generated by a user touch operation, and transmit the input instruction to the sound collection module 200. The speaker 120 is used to display the result of the gas detection failure to the user. In this embodiment, the sound collection module 200 is a short-distance sound pickup, and the detection distance thereof is within 5 cm of the forward straight line, and the deviation angle is smaller than 30 degrees. If the distance exceeds the preset detection distance, the sound collection module 200 performs noise reduction processing on the sound signal to be detected to generate a noise reduction sound signal, and transmits the noise reduction sound signal to the main control system module 400. If the predetermined detection distance is not exceeded, the sound collection module 200 directly transmits the sound signal to be detected to the main control system module 400. The volume of the noise reduction sound signal generated after the noise reduction processing of the sound collection module 200 is greatly reduced.
The gas detection module 300 includes a gas chamber 310, a gas detection module 320, and an active gettering module 330. The air chamber 310 is a cavity structure arranged in front of the user, and provides a larger storage space and a larger air passage for the gas to be tested exhaled by the user. The gas detection module 320 is configured to detect a gas to be detected and generate gas detection data. In this embodiment, the gas detection module 320 is an alcohol sensor, and is configured to detect an alcohol concentration in the gas to be detected, where the generated gas detection data includes alcohol concentration information. The active inspiration module 330 provides inspiration power to the gas chamber 310 through the gas detection module 320 to increase the collection amount of the gas to be detected collected by the gas chamber 310, so as to increase the amount of the gas entering the gas detection module 320 and improve the detection accuracy of the gas detection module 320. In this embodiment, the active air suction module 330 is an air pump, which discharges air in the pump to form a relatively low pressure, and opens the air inlet valve to suck in the gas to be measured. In other embodiments, the gas detection module 320 may also be a respiration-related physiological parameter detection element, and the active inspiration module 330 may also be a silent fan.
The main control system module 400 includes a sound level determination module 410, a voiceprint recognition module 420, a voiceprint database 430, a control module 440, and a gas analysis module 450. The sound size determining module 410 is configured to receive the sound signal to be detected or the noise reduction sound signal from the sound collecting module 200, and determine the volume size of the sound signal to be detected or the noise reduction sound signal based on a preset standard volume. In this embodiment, the preset standard volume is 65 db. When the volume of the sound signal to be detected or the noise reduction sound signal is lower than the preset standard volume, the sound size determination module 410 generates a distance prompt signal and transmits the distance prompt signal to the touch display module 110 to prompt the user to approach the sound gas composite detection device 900; under the condition that the volume of the sound signal to be detected or the noise reduction sound signal is not lower than the preset standard volume, the sound size determination module 410 transmits the sound signal to be detected or the noise reduction sound signal to the voiceprint recognition module 420. The voiceprint recognition module 420 is configured to receive the to-be-detected sound signal or the noise reduction sound signal from the sound size determination module 410, and call a standard voiceprint signal preset by the user from the voiceprint database 430, so as to analyze and compare the to-be-detected sound signal or the noise reduction sound signal with the standard voiceprint signal to generate a voiceprint recognition result. The voiceprint recognition module 420 sends the voiceprint recognition result to the control module 440. The voiceprint database 430 is configured to store a standard voiceprint signal preset by a user, and provide the standard voiceprint signal to the voiceprint recognition module 420 when the voiceprint recognition module issues a call instruction.
The control module 440 is configured to receive an input command from the touch display module 110 and control the gas detection module 300 to collect and detect the gas to be detected. Specifically, after receiving the input command from the touch display module 110, the control module 440 controls the active inspiration module 330 to provide inspiration power to the air chamber 310, so as to collect the gas to be detected exhaled by the user. The gas detection module 320 sends the gas detection data to the gas analysis module 450. The gas analysis module 450 analyzes whether the gas detection data meets a predetermined value and generates a gas detection result, and if the gas detection data meets the predetermined value, the gas detection result is that the gas detection passes, and if the gas detection data does not meet the predetermined value, the gas detection result is that the gas detection does not pass. In the case that the gas detection result is that the gas detection is not passed, the gas analysis module 450 transmits the result of the gas detection not passed to the speaker 120 to be played back to the user for notification. In the present embodiment, the gas detection data includes alcohol concentration information, and if the alcohol concentration does not meet a predetermined value, the gas analysis module 450 outputs the result of the gas detection failure to the user through the speaker 120 in the form of an alarm.
The control module 440 is further configured to receive the voiceprint recognition result from the voiceprint recognition module 420 and the gas detection result from the gas analysis module 450, generate a composite detection result based on the voiceprint recognition result and the gas detection result, and output the composite detection result to the touch display module 110. The composite detection result comprises composite detection passing and composite detection failing. Under the condition that the gas detection passes and the voiceprint recognition passes, the control module 440 generates a result of the composite detection passing and outputs the result to the touch display module 110; in the case where the voiceprint recognition is not passed or the gas detection is not passed, the control module 440 generates a result of the composite detection not being passed and outputs the result to the touch display module 110.
Gaseous compound detection device 900 of sound passes through sound collection module 200 and restricts user's the detection distance of predetermineeing to ensure that gaseous detection module 300 can obtain sufficient gaseous collection volume of awaiting measuring when improving the sound signal definition of awaiting measuring, thereby improve the degree of accuracy that sound detected and gaseous detection simultaneously, and then ensure compound detection degree of accuracy. The gas detection module 300 adopts the active air suction module 330 to provide air suction power, so that the collection amount of the gas to be detected is further increased, and the gas detection accuracy is further improved.
The sound-gas composite detection method of the present invention is implemented based on the sound-gas composite detection apparatus 900. FIG. 3 is a flow chart of the sound-gas composite detection method of the present invention, which includes the following steps 802-810.
And step 804, detecting the sound signal to be detected to limit the preset detection distance of the user. When detecting that the detection distance between the user and the sound gas composite detection device 900 exceeds the preset detection distance, the sound collection module 200 performs noise reduction processing on the sound signal to be detected to generate a noise reduction sound signal, and transmits the noise reduction sound signal to the main control system module 400; the sound collection module 200 directly transmits the sound signal to be detected to the main control system module 400 when detecting that the detection distance between the user and the sound gas composite detection device 900 is not more than the preset detection distance.
Step 806 detects the gas to be detected to generate a gas detection result. The gas detection module 300 detects the gas to be detected to generate gas detection data, and sends the gas detection data to the main control system module 400. The main control system module 400 analyzes the gas detection data to generate a gas detection result.
And 808, detecting the voiceprint information of the sound signal to be detected under the condition that the actual detection distance of the user does not exceed the preset detection distance so as to generate a voiceprint recognition result. The main control system module 400 analyzes and compares the sound signal to be detected or the noise reduction sound signal with the standard voiceprint signal to generate a voiceprint recognition result.
And 810, generating a composite detection result based on the gas detection result and the voiceprint recognition result. The main control system module 400 generates a composite detection result based on the voiceprint recognition result and the gas detection result, and outputs the composite detection result to the human-computer interaction module 100.
FIG. 4 is a more detailed flowchart of the acoustic gas composite detection method, wherein each of the above steps 802 and 810 includes the following more detailed steps.
And 606, outputting the random password information to the user and guiding the user to read aloud. The touch display module 110 outputs random password information to the user, so that the user reads the random password information aloud under the guidance information to generate a sound signal to be detected and exhales the gas to be detected.
And 614, performing noise reduction processing on the sound signal to be detected to generate a noise reduction sound signal, and entering 616. If the actual detection distance exceeds the preset detection distance, the sound collection module 200 performs noise reduction processing on the sound signal to be detected to generate a noise reduction sound signal, and transmits the noise reduction sound signal to the sound size determination module 410 for volume size determination.
In step 616, it is determined whether the volume of the sound signal to be detected or the noise reduction sound signal is lower than the predetermined standard volume. If yes, go to step 618; if the determination result is negative, go to step 620. The sound level determination module 410 determines whether the sound signal to be detected or the noise reduction sound signal is lower than a predetermined standard volume. If the actual detection distance is not less than the preset detection distance, detecting the voiceprint information of the sound signal to be detected to generate a voiceprint identification result.
Step 620, a preset user standard voiceprint signal is called. The voiceprint recognition module 420 retrieves a user-preset standard voiceprint signal from the voiceprint database 430.
At step 622, it is determined whether the voiceprint recognition result passes. If yes, go to step 624; if the determination result is negative, go to step 624. The voiceprint recognition module 420 analyzes and compares the voice signal to be detected or the noise reduction voice signal with a preset standard voiceprint signal to determine whether the voice signal to be detected or the noise reduction voice signal is matched with the preset standard voiceprint signal or not so as to generate a voiceprint recognition result, and determines whether the voiceprint recognition result passes through or not, if the voiceprint recognition result passes through, the voiceprint recognition result passes through; if not, the voiceprint recognition result is not passed.
Step 806 of detecting the gas to be detected to generate a gas detection result further includes the following steps 630-.
In step 634, it is determined whether the gas detection result passes. If yes, go to step 624; if the determination result is negative, step 636 is entered and step 624 is entered at the same time. The gas analysis module 450 analyzes and compares the gas detection parameters with the preset standard parameters. If the gas detection parameter does not exceed the preset standard parameter, the gas detection result is passed; and if the gas detection parameter exceeds the preset standard parameter, the gas detection result is failed.
In step 624, it is determined whether the composite test result passes. If yes, go to step 626; if the determination result is negative, go to step 628. The control module 440 determines whether the gas detection result and the voiceprint recognition result both pass, if both pass, the composite detection result is pass, and if not, the composite detection result is fail.
The sound and gas composite detection method provided by the invention detects the sound signal to identify the identity of the user, and simultaneously collects and detects the gas to be detected to generate a gas detection result to judge the body state of the user, thereby realizing the effect of simultaneously detecting the sound and the gas. In addition, the gas detection accuracy is improved by the limiting effect of the sound gas composite detection method on the preset detection distance of the user, and the composite detection accuracy is further improved.
While the invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that the present invention is not limited to the details of construction and various changes in form and details may be made therein without departing from the spirit and scope of the invention. Accordingly, the scope of the present disclosure is not limited to the above-described embodiments, but should be determined by the claims and the equivalents thereof.
Claims (10)
1. A sound and gas composite detection method is characterized by comprising the following steps:
receiving a sound signal to be detected of a user and gas to be detected;
detecting the sound signal to be detected to limit a preset detection distance of the user;
detecting the gas to be detected to generate a gas detection result;
detecting the voiceprint information of the sound signal to be detected under the condition that the actual detection distance does not exceed the preset detection distance so as to generate a voiceprint recognition result;
and generating a composite detection result based on the gas detection result and the voiceprint recognition result.
2. A sound gas composite detection method according to claim 1, wherein said step of detecting said sound signal to define a predetermined detection distance for said user further comprises:
acquiring the actual detection distance of the user;
judging whether the actual detection distance exceeds the preset detection distance;
if the actual detection distance exceeds the preset detection distance, performing noise reduction processing on the sound signal to be detected to generate a noise reduction sound signal, and entering a volume judgment step;
and if the actual detection distance does not exceed the preset detection distance, entering the volume size judgment step.
3. The acoustic gas composite detection method according to claim 2, wherein the volume level determination step further comprises:
judging whether the volume of the sound signal to be detected or the noise reduction sound signal is lower than a preset standard volume;
if the volume is lower than the preset standard volume, informing the user that the detection distance is too far and the retest is needed, and returning to the step of receiving the sound signal to be detected and the gas to be detected of the user;
and if the actual detection distance is not less than the preset standard volume, detecting the voiceprint information of the sound signal to be detected to generate a voiceprint identification result under the condition that the actual detection distance is not more than the preset detection distance.
4. The acoustic gas composite detection method of claim 3, wherein said receiving a user acoustic signal under test and a gas under test further comprises:
outputting detection guide information to the user;
receiving the user input instruction;
outputting random password information to the user, and guiding the user to read the random password information;
and collecting the sound signal to be detected sent out when the user reads.
5. The acoustic gas composite detection method of claim 4, wherein said step of detecting said gas under test to generate a gas detection result further comprises:
starting the air pump to provide active air suction power;
detecting the gas to be detected exhaled by the user during reading to generate gas detection data;
judging whether the gas detection result passes or not;
if the result passes, entering a step of generating a composite detection result based on the gas detection result and the voiceprint recognition result;
if not, sending an alarm signal, and simultaneously entering the step to generate a composite detection result based on the gas detection result and the voiceprint recognition result;
wherein the gas detection data is alcohol concentration.
6. The sound-gas composite detection method according to claim 5, wherein the step of determining whether the gas detection result passes comprises:
comparing the gas detection parameters with preset standard parameters;
if the gas detection parameter does not exceed the preset standard parameter, the gas detection result is passed;
and if the gas detection parameter exceeds the preset standard parameter, the gas detection result is failed.
7. The sound-gas composite detection method according to claim 6, wherein the step of detecting the voiceprint information of the sound signal to be detected to generate the voiceprint recognition result further comprises, in a case that the actual detection distance does not exceed a preset detection distance:
calling a preset user standard voiceprint signal;
judging whether the voiceprint recognition result passes or not;
if the result passes, entering a step of generating a composite detection result based on the gas detection result and the voiceprint recognition result;
and if not, entering a step of generating a composite detection result based on the gas detection result and the voiceprint recognition result.
8. The sound-gas composite detection method according to claim 7, wherein the step of determining whether the voiceprint recognition result passes comprises:
comparing whether the sound signal to be detected or the noise reduction sound signal is matched with the preset standard voiceprint signal or not;
if the voice print identification result is matched with the voice print identification result, the voice print identification result is passed;
and if the two voice print identification results are not matched, the voice print identification result is failed.
9. The method of claim 8, wherein the step of generating a composite detection result based on the gas detection result and the voiceprint recognition result further comprises:
judging whether the composite detection result passes or not;
if the user passes the authentication, outputting a composite detection result of 'identity authentication passing' to the user;
recording operation information;
and if not, outputting the 'identity authentication failed' composite detection result to the user, and returning to the step to output detection guide information to the user.
10. The method of claim 9, wherein the determining whether the composite detection result passes comprises:
judging whether the gas detection result and the voiceprint recognition result pass or not;
if the two pass, the composite detection result is a pass;
if not, the composite detection result is not passed.
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