Simulation bionic electronic nose device and robot thereof

Abstract

The utility model relates to a simulation bionic electronic nose device which comprises a simulation bionic electronic nose, the simulation bionic electronic nose is composed of a smell collection module, a smell signal processing module, a smell data analysis module and an identification result output module, the smell collection module sucks gas to be detected, the smell signal processing module is used for processing the smell data analysis module, and the identification result output module is used for outputting identification results. And through full contact with a built-in sensor array, an odor fingerprint spectrum is obtained and is compared with an established odor database for identification processing. In practical application, the bionic electronic nose device comprises an air curtain type nose, a standard type nose and the like, can be applied to robots in multiple fields such as old-age care robots, smell search robot dogs and vehicle bottom toxicity detection robots, makes up for smell defects of existing robots, and has wide application scenes. Meanwhile, compared with a traditional smell recognition technology, the electronic nose device has the advantages that the cost of materials used by the electronic nose device is low, the preparation process is simple, the overall production cost can be reduced, and meanwhile the smell recognition efficiency is improved.

Description

Technical Field

[0001] This technical solution relates to the field of intelligent robots, and in particular to the field of bionic olfactory sensing technology. Specifically, it refers to a simulated bionic electronic nose device and a corresponding robot equipped with the simulated bionic electronic nose device. Background Technology

[0002] In the current field of odor recognition, traditional detection techniques mainly rely on ordinary multi-sensor arrays. These sensors have non-specific responses to odor molecules, resulting in low recognition accuracy and selectivity. In addition, these sensors typically require high operating temperatures, consume a lot of energy, and have long response and recovery times, limiting their application in real-time odor monitoring and rapid response scenarios.

[0003] Another technical solution is to use conductive polymers as sensor materials. While these improve sensitivity and selectivity to some extent, they still suffer from poor stability and performance degradation after long-term operation. These materials are easily affected by humidity and temperature changes in the environment, leading to fluctuations in sensor performance and making it difficult to achieve long-term reliable odor recognition.

[0004] Therefore, it is necessary to propose a solution to improve the accuracy and response speed of odor recognition, reduce energy consumption, enhance the stability and durability of the device, and apply it to various application scenarios such as air curtain nose, standard nose and robots, so as to realize the direct application of smart living. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a simulated bionic electronic nose device and a corresponding robot equipped with the simulated bionic electronic nose device.

[0006] To achieve the above objectives, the present invention provides a simulated bionic electronic nose device and a corresponding robot equipped with the simulated bionic electronic nose device as follows:

[0007] The main feature of this biomimetic electronic nose device is that the device includes:

[0008] A bionic electronic nose is provided, comprising an odor acquisition module, an odor signal processing module, an odor data analysis module, and a recognition result output module. The odor acquisition module inhales the gas to be detected, acquires the odor fingerprint spectrum by fully contacting the built-in sensor array or odor detection chip, and compares it with the established odor database to perform odor recognition processing.

[0009] Preferably, the bionic electronic noses are either an air curtain type electronic nose with an air curtain device or a conventional type electronic nose with a suction device.

[0010] Preferably, the bionic electronic nose is provided with a simulation mask and a simulation nose respectively.

[0011] The air curtain electronic nose is provided inside the simulation mask or the simulation nose to form an air curtain nose.

[0012] The conventional electronic nose is provided inside the simulation mask or the simulation nose to form a conventional nose.

[0013] Preferably, the air curtain device comprises:

[0014] a device body;

[0015] an active air outlet channel formed in the device body in a ring shape and having an inlet and an outlet provided at a detection end and a collection end of the device body respectively;

[0016] a passive air outlet channel formed in the device body in a ring shape and having an inlet and an outlet provided at the detection end and the collection end of the device body respectively;

[0017] an active air inlet channel formed in the device body in a ring shape and having an inlet and an outlet provided at the collection end and the detection end of the device body respectively; and

[0018] a passive air inlet channel formed in the device body and having an inlet and an outlet both located in the passive air inlet channel.

[0019] Preferably, when a first air flow is injected into the active air outlet channel, the first air flow enters the inlet of the active air outlet channel and is discharged from the outlet, and a second air flow is induced in the passive air outlet channel, the first air flow and the second air flow are combined and emitted towards the collection end of the device body after leaving the device body to form a hollow air curtain at the collection end of the device body.

[0020] When a third air flow is injected into the active air inlet channel, the third air flow enters the inlet of the active air inlet channel and is discharged from the outlet, and a fourth air flow is induced in the passive air inlet channel, wherein the fourth air flow is from a target gas surrounded by the hollow air curtain and located in front of the collection end of the device body.

[0021] Preferably, the air suction device is provided in the smell collection module and comprises, from the outside to the inside, a gas filtration module, a gas flow channel, a sensor array or a smell detection chip, and a micro fan.

[0022] Preferably, the odor collecting module further comprises a gas sampling pump, which is used to suck external gas into the gas flow pipeline after removing impurities and interfering components through the gas filtering module; and the sensor array or odor detection chip is composed of a plurality of uniformly distributed sensors, and the external gas enters the sensor array or odor detection chip through the gas flow pipeline, and realizes odor information collection and generates corresponding electrical signals after sufficient contact with the sensor array or odor detection chip.

[0023] Preferably, the odor signal processing module comprises:

[0024] an odor signal amplifier, which is used to receive the weak electrical signals generated by the sensor array and perform signal amplification processing on the weak electrical signals;

[0025] an odor signal filter connected with the odor signal amplifier, which is used to receive the obtained odor amplified signals and remove noise and interference from the amplified signals; and

[0026] an analog-to-digital converter, which is used to convert the received odor analog signals into digital signals;

[0027] The odor data analysis module receives the digital signals through a microprocessor and uses a built-in data comparison algorithm to compare and analyze the collected odor signals with the data in the odor fingerprint database; wherein the odor fingerprint database stores characteristic spectrum information of a plurality of odors with different odors.

[0028] The recognition result output module displays graphic information through a display screen with a resolution of 1920x1080 and provides voice prompts for the corresponding results through a voice broadcaster; and the recognition result output module also has a data transmission interface, which is used to transmit the recognition results to other devices.

[0029] The robot with the simulated bionic electronic nose device mainly has the following characteristics: the robot is installed with the simulated bionic electronic nose device described above.

[0030] More preferably, the robot is provided with a movable turntable at the top position, and the wind curtain type electronic nose is installed on the movable turntable and realizes 360° omnidirectional odor detection processing under the driving of the movable turntable.

[0031] The bionic electronic nose device and the corresponding robot equipped with the bionic electronic nose device of this invention have advantages over traditional odor recognition technology. The electronic nose device uses lower-cost materials and has a simpler manufacturing process, which helps to reduce overall production costs and improve the efficiency of odor recognition. At the same time, it can be adapted to various types and fields of robots, effectively making up for the olfactory defects of existing robots and has broad application prospects. Attached Figure Description

[0032] Figure 1 This is a side view of the air curtain of the biomimetic electronic nose device of this utility model.

[0033] Figure 2 This is a cross-sectional view of the air curtain of the biomimetic electronic nose device of this utility model.

[0034] Figure 3 This is a schematic diagram of the structure of the simulated bionic electronic nose device of this utility model applied to a drug detection robot under a vehicle.

[0035] Figure 4 This is a schematic diagram of the simulated bionic electronic nose device of this utility model installed on a movable turntable.

[0036] Figure Labels

[0037] 1 air curtain

[0038] 11 detection terminals

[0039] 12 acquisition terminals

[0040] 13 Device Body

[0041] 131 First Shell

[0042] 132 First cylindrical wall

[0043] 133 Second cylinder wall

[0044] 134 Third cylindrical wall

[0045] 135 First Connection Structure

[0046] 14 Active air outlet channels

[0047] 15 passive air outlet channels

[0048] 16 Active air intake channels

[0049] 17 Passive air intake channel

[0050] 18 Second hook

[0051] 19 First support frame

[0052] 191 First connecting hole

[0053] 10 second support frame

[0054] 101 second connecting hole

[0055] 2 detector

[0056] 21 second housing

[0057] 22 partitioning cylinder

[0058] 23 detection channel

[0059] 24 blowdown channel

[0060] 25 second connecting structure

[0061] 26 gas sensor

[0062] 27 partitioning member

[0063] 28 air-permeable dirt-blocking membrane

[0064] 29 first clasp

[0065] 3 gas filtering module

[0066] 4 gas flow channel

[0067] 5 sensor array or odor detection chip

[0068] 6 micro fan

[0069] 7 odor collecting module DETAILED DESCRIPTION

[0070] In order to make the technical content of the utility model more clearly, the following further description is made in combination with specific embodiments.

[0071] Before the detailed description of embodiments according to the utility model, it should be noted that in the following, the terms "comprise", "include" or any other variant is intended to cover non-exclusive inclusion, thereby making the process, method, article or equipment including a series of elements not only include these elements, but also include other elements not explicitly listed or inherent to such process, method, article or equipment.

[0072] In the technical scheme of the simulation bionic electronic nose device, the hardware structure of the overall hardware function platform supporting the realization of the corresponding functions and the connection relationship thereof are mainly protected, and each function module and module unit included in the simulation bionic electronic nose device can correspond to a specific hardware circuit in an actual known hardware device or integrated circuit structure, so that only the improvement of the specific hardware topology connection structure and the specific hardware circuit is related, the improvement of the hardware part exists, and the simulation bionic electronic nose device does not only rely on computer control software, and is not a carrier for only executing control software or a computer program, so that the corresponding technical problems are solved and the corresponding technical effects are obtained, and the application of any control software or computer program is not involved, that is, the simulation bionic electronic nose device only utilizes the improvement of the actual known hardware device or hardware circuit structure of the modules and units to solve the technical problems to be solved and obtain the corresponding technical effects, and the corresponding functions can be realized without the aid of specific control software or a computer program.

[0073] The simulation bionic electronic nose device, wherein the device comprises:

[0074] A bionic electronic nose, the bionic electronic nose is composed of an odor collecting module 7, an odor signal processing module, an odor data analysis module and an identification result output module, the odor collecting module 7 inhales the gas to be detected, obtains an odor fingerprint spectrum through sufficient contact with a built-in sensor array or an odor detection chip 5, and performs response odor identification processing by comparison with an established odor database.

[0075] As a preferred embodiment of the utility model, the bionic electronic nose is a wind curtain type electronic nose with a wind curtain device and a conventional type electronic nose with a suction device respectively.

[0076] As a preferred embodiment of the utility model, the bionic electronic nose is respectively provided with a simulation mask and a simulation nose;

[0077] The wind curtain type electronic nose with the wind curtain device is arranged on the inner side of the simulation mask or the simulation nose to form a wind curtain type nose.

[0078] The conventional type electronic nose with the suction device is arranged on the inner side of the simulation mask or the simulation nose to form a conventional type nose.

[0079] As Figure 1 and 2As shown, in a preferred embodiment of this utility model, the electronic nose device includes an air curtain 1 with a detection end 11 and a collection end 12, and a detector 2 connected to the detection end 11 of the air curtain 1 for qualitative and quantitative detection of the components to be detected in the target gas. The air curtain 1 includes a device body 13, an active air outlet channel 14, a passive air outlet channel 15, a passive air inlet channel 17, and an active air inlet channel 16. The active air outlet channel 14 is formed annularly within the device body 13 and has an inlet and an outlet respectively located at the detection end 11 and the collection end 12 of the device body 13. The passive air outlet channel 15 is annularly disposed inside the active air outlet channel 14 and has an inlet and an outlet respectively located at the detection end 11 and the collection end 12 of the device body 13. The active air inlet channel 16 is annularly disposed inside the passive air outlet channel 15 and has an inlet and an outlet respectively located at the collection end 12 and the detection end 11 of the device body 13. The passive air intake channel 17 is located inside the active air intake channel 16 and has an inlet and an outlet both located within it. When a first airflow is injected into the active air outlet channel 14, the first airflow enters through its inlet and exits through its outlet, inducing a second airflow to be generated within the passive air outlet channel 15. The first and second airflows merge after detaching from the device body 13 and are ejected towards the collection end 12 of the device body 13, forming a hollow air curtain at the collection end 12. When a third airflow is injected into the active air intake channel 16, the third airflow enters through its inlet and exits through its outlet, inducing a fourth airflow to be generated within the passive air intake channel 17. This fourth airflow originates from the target gas surrounded by the hollow air curtain and located in front of the collection end 12 of the device body 13.

[0080] In practical applications, by injecting a first airflow into the active air outlet channel 14, the airflow enters from the inlet and is discharged from the outlet, while inducing the passive air outlet channel 15 to generate a second airflow. The first airflow and the second airflow are combined after leaving the device body 13 to form a hollow air curtain that is ejected towards the collection end 12 of the device body 13. The hollow air curtain has the function of wrapping the target gas, which can effectively isolate external gas interference and avoid adverse effects such as disturbance of the target gas. At the same time, by injecting a third airflow into the active air inlet channel 16, the airflow enters from the inlet and is discharged from the outlet, and induces the passive air inlet channel 17 to generate a fourth airflow. The third airflow and the fourth airflow work together to transport the target gas wrapped by the hollow air curtain into the air curtain device 1, completing the collection of the target gas. Compared with the prior art, first, the hollow air curtain of the electronic nose device effectively ensures the collection quality of the target gas and avoids the interference of external gas. Second, by optimizing the airflow path design, the first airflow drives the second airflow, and the third airflow drives the fourth airflow, which improves the collection efficiency of the gas. Finally, the airflow injection method replaces the existing traditional built-in fan method, significantly reducing the size of the electronic nose device and improving the space utilization.

[0081] As a specific embodiment of the present application, the device body 13 includes a first housing 131, a first cylinder wall 132, a second cylinder wall 133, a third cylinder wall 134, and a first connecting structure 135. The active air outlet channel 14, the passive air outlet channel 15, the active air inlet channel 16, and the passive air inlet channel 17 are arranged in the first housing 131 in sequence. The first cylinder wall 132 is arranged between the active air outlet channel 14 and the passive air outlet channel 15 to separate the active air outlet channel 14 and the passive air outlet channel 15 in the device body 13, thereby forming the active air outlet channel 14 and the passive air outlet channel 15. The second cylinder wall 133 is arranged between the passive air outlet channel 15 and the active air inlet channel 16 to separate the passive air outlet channel 15 and the active air inlet channel 16 in the device body 13, thereby forming the passive air outlet channel 15 and the active air inlet channel 16. The third cylinder wall 134 is arranged between the active air inlet channel 16 and the passive air inlet channel 17 to separate the active air inlet channel 16 and the passive air inlet channel 17 in the device body 13, thereby forming the active air inlet channel 16 and the passive air inlet channel 17. The first connecting structure 135 is used to connect the first cylinder wall 132, the second cylinder wall 133, and the third cylinder wall 134 in the first housing 131 in sequence to support the first cylinder wall 132, the second cylinder wall 133, and the third cylinder wall 134, thereby preventing the first cylinder wall 132, the second cylinder wall 133, and the third cylinder wall 134 from collapsing during the collection of the target gas, which affects the collection efficiency of the target gas.

[0082] The air curtain device 1 of the electronic nose device can inject air flow through components such as air pumps. Specifically, the device body 13 further comprises a first support frame 19 arranged between the first shell 131 and the first cylinder wall 132 and provided with a first connecting hole 191, so as to connect the air pump and inject the first air flow into the active air outlet channel 14 through the first connecting hole 191. The device body 13 further comprises a second support frame 10 arranged between the second cylinder wall 133 and the third cylinder wall 134 and provided with a second connecting hole 101, so as to connect the air pump and inject the first air flow into the active air inlet channel 16 through the second connecting hole 101.

[0083] As a specific embodiment of the present application, the distance between the end of the first cylinder wall 132 close to the detector 2 and the first shell 131 is greater than the distance between the end of the first cylinder wall 132 away from the detector 2 and the first shell 131, so that the cross-sectional area of the active air outlet channel 14 gradually decreases in the direction away from the detector 2, thereby forming a tapered flow channel structure, so that the first air flow can produce an acceleration effect when flowing through the active air outlet channel 14. The distance between the end of the first cylinder wall 132 close to the detector 2 and the end of the second cylinder wall 133 close to the detector 2 is greater than the distance between the end of the first cylinder wall 132 away from the detector 2 and the end of the second cylinder wall 133 away from the detector 2, so that the cross-sectional area of the passive air outlet channel 15 gradually decreases in the direction away from the detector 2, thereby forming a tapered flow channel structure, so that the second air flow can produce an acceleration effect when flowing through the passive air outlet channel 15. And the area of the outlet of the active air outlet channel 14 is smaller than the area of the outlet of the passive air outlet channel 15, so that the first air flow ejected from the outlet of the active air outlet channel 14 forms a negative pressure area, thereby producing an ejecting effect to drive the second air flow ejected from the outlet of the passive air outlet channel 15 to accelerate synchronously, thereby forming a hollow air curtain at the collection end 12 of the device body 13, so as to effectively isolate the interference of external gas and maintain the stability of the hollow air curtain.

[0084] As a specific embodiment of the present application, the end of the second cylinder wall 133 away from the detector 2 is located outside the first shell 131, and the end of the first cylinder wall 132 away from the detector 2 is located inside the first shell 131, so as to block the second air flow ejected through the outlet of the passive air outlet channel 15, thereby enabling the first air flow to drive more second air flow to accelerate synchronously.

[0085] As a specific embodiment of the utility model, in the radial direction of the first shell 131, the distance from the end of the third cylinder wall 134 close to the detector 2 to the second cylinder wall 133 is less than the distance from the end of the third cylinder wall 134 far from the detector 2 to the second cylinder wall 133, so that the cross-sectional area of the active air inlet channel 16 gradually increases in the direction away from the detector 2, thereby forming a gradually expanding flow channel structure with the passive air inlet channel 17, so that the third airflow can produce an acceleration effect when flowing through the active air inlet channel 16. The size of the third cylinder wall 134 in the axial direction of the first shell 131 is shorter than the size of the second cylinder wall 133 in the axial direction of the first shell 131, which can shorten the airflow path of the fourth airflow in the passive air inlet channel 17, so that the third airflow of the active air inlet channel 16 can produce an ejector effect with the fourth airflow in the passive air inlet channel 17 as soon as possible.

[0086] As a specific embodiment of the utility model, the end of the first cylinder wall 132 close to the detector 2 and the end of the second cylinder wall 133 close to the detector 2 are flush with the end of the first shell 131 close to the detector 2, to ensure the stability of the first airflow in the active air outlet channel 14 and the second airflow in the passive air outlet channel 15. The end of the third cylinder wall 134 close to the detector 2 is farther away from the detector 2 than the end of the second cylinder wall 133 close to the detector 2, and the end of the third cylinder wall 134 far from the detector 2 is closer to the detector 2 than the end of the first cylinder wall 132 far from the detector 2, so that the third airflow can produce an ejector effect with the fourth airflow in the passive air inlet channel 17 as soon as possible, whether it is from the inlet or the outlet of the active air inlet channel 16.

[0087] As shown in Figure 2 , the detector 2 includes a second shell 21, a partition cylinder 22, and a gas sensor 26. The second shell 21 is provided with a space communicating with the active air inlet channel 16 and the passive air inlet channel 17, so that the target gas collected by the air curtain device 1 can smoothly enter the detector 2. The partition cylinder 22 is fixed in the second shell 21 by the second connecting structure 25, and at least partially divides the space in the second shell 21 into a detection channel 23 and a pollution discharge channel 24 surrounding the detection channel 23, so that the detection channel 23 and the pollution discharge channel 24 are effectively separated, thereby reducing the interference of pollutants on the target gas, and helping to improve the accuracy and reliability of detection. The gas sensor 26 is fixedly arranged in the partition cylinder 22 and located in the detection channel 23, to qualitatively and quantitatively detect the components to be detected in the target gas. The detector 2 further includes a partition piece 27 arranged in the partition cylinder 22 and used to form the detection channel 23 into a meandering channel, to provide a longer flow distance for the target gas, and the meandering channel can also arrange more gas sensors 26 to improve the accuracy of the electronic nose device in detecting the components to be detected in the target gas. The partition piece 27 can be a cylindrical spiral blade to form the detection channel 23 into a meandering channel, and the circular spiral blade is more convenient to install.

[0088] As a specific embodiment of the utility model, the detector 2 further comprises a breathable dirt blocking membrane 28 fixed in the second shell 21, which is arranged to completely shield one end of the detection channel 23 towards the air curtain device 1 and only open the bottom area of one end of the dirt discharge channel 24 towards the air curtain device 1. The breathable dirt blocking membrane 28 can filter out impurities in part of the target gas by blocking the breathable dirt blocking membrane 28, so as to prevent impurities (such as dust or particulate matter) in the target gas from interfering with the normal operation of the gas sensor 26, causing errors in the detection results, and ensuring that the gas sensor 26 works in a purer environment. The impurities (such as dust or particulate matter) blocked by the breathable dirt blocking membrane 28 can be discharged under the action of the active air outlet channel 14 and the passive air outlet channel 15 to avoid the accumulation of impurities in the partitioning cylinder 22.

[0089] As a specific embodiment of the utility model, the detector 2 further comprises a first hook 29 arranged on the second shell 21, and the air curtain device 1 further comprises a second hook 18 arranged on the device main body 13 and capable of being engaged with the first hook 29, so as to realize quick installation and disassembly on the basis of detachable connection of the detector 2 and the air curtain device 1.

[0090] As a specific embodiment of the utility model, the air suction device is arranged in the odor collecting module 7, which comprises, from the outside to the inside, a gas filtering module 3, a gas flow channel 4, a sensor array or odor detection chip 5, and a micro fan 6.

[0091] As shown in Figure 3 As a specific embodiment of the utility model, the odor collecting module 7 further comprises a gas sampling pump, which is used to suck external gas. The external gas enters the gas flow channel 4 after removing impurities and interfering components through the gas filtering module 3. The sensor array or odor detection chip 5 is composed of a plurality of uniformly distributed sensors. The external gas enters the sensor array or odor detection chip 5 through the gas flow channel 4, fully contacts the sensor array or odor detection chip 5, realizes odor information collection, and generates corresponding electric signals.

[0092] As a specific embodiment of the utility model, the odor signal processing module comprises:

[0093] An odor signal amplifier is used to receive the weak electric signal generated by the sensor array and perform signal amplification processing on the weak electric signal.

[0094] An odor signal filter is connected to the odor signal amplifier and is configured to receive the acquired odor amplified signal and remove noise and interference from the amplified signal.

[0095] An analog-to-digital converter is configured to convert the received analog signal of the odor into a digital signal.

[0096] The odor data analysis module receives the digital signal through a microprocessor and uses a built-in data comparison algorithm to compare and analyze the collected odor signal with data in an odor fingerprint database.

[0097] The recognition result output module displays graphic information through a display screen with a resolution of 1920x1080 and provides voice prompts for the corresponding results through a voice broadcaster.

[0098] The robot with the simulated bionic electronic nose device, wherein the robot is provided with the simulated bionic electronic nose device.

[0099] As shown in Figure 4 As shown in

[0100] In actual application, the working process of the simulated bionic electronic nose device for odor fingerprint spectrum identification is as follows:

[0101] Step 1: odor collection. Start the gas sampling pump and suck the gas to be detected into the odor collection module 7, and fully contact the sensor array or odor detection chip 5. The collection time is 5 seconds.

[0102] Step 2: signal processing. The electric signal generated by the sensor array or odor detection chip 5 is amplified, filtered and converted into a clear and accurate digital signal.

[0103] Step 3: data analysis. The digital signal is transmitted to the microprocessor and compared with the data in the odor fingerprint database. The analysis time is 1 second.

[0104] Step 4: result output. The analysis results are output through the display screen and the voice broadcaster, and data transmission can be performed through the data transmission interface.

[0105] In a specific embodiment of the present application, the use of the simulation bionic electronic nose device is as follows:

[0106] Step 1: Place the robot device equipped with the simulation bionic electronic nose device in an environment where odor detection is required, and wait for work.

[0107] Step 2: Start the gas sampling pump to collect the gas to be detected, and the collection time is set to 5 seconds. The working frequency of the gas sampling pump is 50Hz.

[0108] Step 3: The electrical signal generated by the sensor array is amplified by 100 times, the filter cutoff frequency is set to 1kHz, and the analog-to-digital converter resolution is 16 bits for signal processing.

[0109] Step 4: The microprocessor uses a data comparison algorithm to compare and analyze the collected odor signal with 10000 odor data in the odor fingerprint database within 1 second at a running frequency of 2GHz.

[0110] Step 5: The analysis result is displayed in graphical and textual form through a display screen with a resolution of 1920x1080, and voice prompts are made through a voice broadcaster with a volume of 50 decibels, and the result can be transmitted to other devices through a USB 3.0 or Bluetooth 5.0 interface.

[0111] In a specific application scenario, for example, in food quality detection, the odor of a batch of fruits is detected. An odor search robot equipped with the simulation bionic electronic nose device is placed in the current environment, and the detection program of the robot face simulation bionic electronic nose and the head top turntable fixed bionic electronic nose is started. After 5 seconds of odor collection and 1 second of data analysis, the result shows that the odor characteristics of the batch of fruits match the odor fingerprint spectrum of fresh fruits with a matching degree of 95%, indicating that the fruit freshness is good.

[0112] In another application scenario, such as environmental air quality monitoring, an environmental quality detection robot is used to detect the air in a certain area. If the detection result shows that the concentration of a certain harmful gas in the air exceeds the safety standard, an alarm will be issued in time through the display screen and the voice broadcaster, and the data will be transmitted to the relevant monitoring center.

[0113] In another specific application scenario, such as in a seismic disaster site, the search robot dog can use the five simulation bionic wind curtain type electronic noses installed on its mouth to simultaneously detect all the lower parts of the ruins in front, quickly orient and exhaust odor interference to search for erratic carbon dioxide gas, human body odor, or dangerous odors such as dense carbon monoxide gas and marsh gas.

[0114] In practical applications, the application scenarios of the simulation bionic electronic nose device of the technical solution include but are not limited to: a simulated alcohol driving bionic nose, a scent searching robot dog, a rule violation detecting robot elephant, a drug detecting robot fish, a nursing robot, a wine tasting robot, a scent searching robot, a vehicle bottom drug detecting robot, a nursing robot, a cooking robot, and an exhaust monitoring robot, etc. Here, only the vehicle bottom drug detecting robot is specifically described, and other types of robots are not described in detail because of the same principle.

[0115] The vehicle bottom drug detecting robot is essentially a sweeping type odor detection machine, and detection air curtains are arranged at the front and upper positions, and the inside of the detection air curtain realizes odor data collection through a scent detector and a sampler, and realizes work driving through an internally arranged control system, a driver and an air pump.

[0116] Compared with the prior art, the technical solution has the following beneficial effects:

[0117] Improve the accuracy of odor recognition: In practical applications, the technical solution adopts an odor fingerprint recognition technology based on a sensor array and an odor detection chip, which can effectively improve the accuracy and sensitivity of odor recognition, especially in complex odor environments. 2. Enhance environmental adaptability: Due to the high stability and chemical resistance of the sensor array (such as graphene material), the simulation bionic nose device of the technical solution can work stably in various environmental conditions, including extreme temperature and humidity conditions. 3. Reduce cost and improve efficiency: Compared with traditional odor recognition technology, the sensor array material used in the technical solution has lower cost and simple preparation process, which helps to reduce the overall production cost and improve the efficiency of odor recognition. 4. Wide application: 5. The electronic nose device with an innovative air curtain type structure adopted in the case can obviously improve the accuracy of collecting odor samples and the resistance to environmental odor interference by spraying a circular (or conical) air curtain around the target and extracting the odor of the target to be collected at the center of the circular air curtain.

[0118] The simulation bionic electronic nose device of the technical solution is not only suitable for air curtain type noses and standard type noses, but also can be applied to various intelligent devices such as robots, and has a wide application prospect.

[0119] In this specification, the utility model has been described with reference to its specific embodiments. However, it is obvious that various modifications and changes can be made without departing from the spirit and scope of the utility model. Therefore, the specification and drawings should be considered illustrative rather than limiting.

Claims

1. A biomimetic electronic nose device, characterized in that, The device includes: A bionic electronic nose, comprising an odor acquisition module, an odor signal processing module, an odor data analysis module, and a recognition result output module, wherein the odor acquisition module inhales the gas to be detected, acquires the odor fingerprint spectrum through full contact with the built-in sensor array or odor detection chip, and compares it with the established odor database to perform odor recognition processing; the bionic electronic nose includes an air curtain type electronic nose with an air curtain and an electronic nose with a suction device. The bionic electronic nose is equipped with a simulated mask and a simulated nose. The aforementioned air curtain type electronic nose with air curtain device is respectively set inside the simulated mask or simulated nose to form an air curtain type nose. The electronic nose with a suction device is respectively installed inside the simulated mask or simulated nose.

2. The biomimetic electronic nose device according to claim 1, characterized in that, The air curtain includes: Device body; An active air outlet channel is formed in a ring shape within the main body of the device, and has an inlet and an outlet respectively located at the detection end and the acquisition end of the main body of the device; The passive air outlet channel is arranged in a ring shape inside the active air outlet channel and has an inlet and an outlet respectively located at the detection end and the acquisition end of the device body. An active air intake channel, arranged in a ring shape inside the passive air outlet channel, has an inlet and an outlet respectively located at the acquisition end and detection end of the device body; and A passive air intake channel is located inside the active air intake channel and has an inlet and an outlet both located within the passive air intake channel.

3. The biomimetic electronic nose device according to claim 2, characterized in that, When the first airflow is injected into the active air outlet channel, the first airflow enters from the inlet of the active air outlet channel and exits from the outlet, and induces the generation of a second airflow in the passive air outlet channel. The first airflow and the second airflow merge after leaving the device body and are ejected toward the collection end of the device body to form a hollow air curtain at the collection end of the device body. When a third airflow is injected into the active air intake channel, the third airflow enters from the inlet of the active air intake channel and exits from its outlet, and induces a fourth airflow to be generated in the passive air intake channel, wherein the fourth airflow comes from the target gas surrounded by the hollow air curtain and located in front of the collection end of the device body.

4. The biomimetic electronic nose device according to claim 1, characterized in that, The air absorber is installed in the odor collection module and includes, from the outside to the inside, a gas filter module, a gas flow pipe, a sensor array or odor detection chip, and a miniature fan.

5. The biomimetic electronic nose device according to claim 4, characterized in that, The odor acquisition module further includes a gas sampling pump, which is used to draw in external gas. The external gas enters the gas flow pipe after impurities and interfering components are removed by the gas filtration module. The sensor array or odor detection chip consists of several evenly distributed sensors. The external gas enters the sensor array or odor detection chip through the gas flow pipe and makes full contact with the sensor array or odor detection chip to acquire odor information and generate corresponding electrical signals.

6. The biomimetic electronic nose device according to claim 4, characterized in that, The odor signal processing module includes: An odor signal amplifier is used to receive the weak electrical signal generated by the sensor array and amplify the weak electrical signal. An odor signal filter, connected to the odor signal amplifier, is used to receive the acquired amplified odor signal and remove noise and interference from the amplified signal; and An analog-to-digital converter is used to convert the received analog signal of odor into a digital signal; The odor data analysis module receives the digital signal through a microprocessor and uses a built-in data comparison algorithm to compare and analyze the collected odor signal with the data in the odor fingerprint database; wherein, the odor fingerprint database stores feature spectral information of several different odors; The recognition result output module displays graphic and textual information on a 1920×1080 resolution screen and provides voice prompts for the corresponding results via a voice broadcaster. The recognition result output module also has a data transmission interface for transmitting the recognition results to other devices.

7. A robot, characterized in that, The robot is equipped with a biomimetic electronic nose device as described in any one of claims 1 to 6.

8. The robot according to claim 7, characterized in that, The robot has a movable turntable at the top of its head, and the air curtain-type electronic nose is installed on the movable turntable, which enables 360° all-round odor detection and processing.

Images