Mobile phone smell perception and smell transmission device
By integrating the mounting box and detection chamber into the phone casing, and combining piezoelectric micropumps and microcavity arrays, along with multiple sensors and activated carbon filters, the problem of inability to integrate and low detection accuracy in existing olfactory devices is solved, enabling portable high-precision gas detection and purification.
Patent Information
- Application Number
- CN202511969900.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-24
- Publication Date
- 2026-02-10
AI Technical Summary
Existing olfactory devices are bulky and power-consuming, making them impossible to integrate into mobile phones. They are also susceptible to interference in complex environments, leading to false alarms or missed detections. Furthermore, the direct emission of unpurified harmful substances causes secondary pollution.
The device integrates a mounting box and a detection chamber within the phone casing, combines a millimeter-level piezoelectric micropump and microcavity array, integrates MOS, EC, and QCM sensor arrays, and is equipped with an activated carbon filter and signal conditioning module to achieve directional flow, purification, and precise detection of gas within a confined space.
It integrates olfactory sensing into the mobile phone, enabling accurate gas detection in a compact size. It avoids the redundant ventilation structure and secondary pollution of traditional equipment, improving detection accuracy and user portability.
Smart Images
Figure CN121509564A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of mobile phone integrated olfactory perception, in particular to a mobile phone olfactory perception and odor transmission device. BACKGROUND
[0002] Smartphones have integrated various sensors (such as cameras, microphones) for visual and auditory perception, but olfactory perception technology is still in its infancy; existing olfactory devices are usually independent instruments (such as gas detectors), which are bulky and have high power consumption, and cannot be seamlessly integrated into mobile devices. With the development of the Internet of Things and health monitoring applications, users' demand for real-time environmental gas detection (such as air quality, harmful substances) is increasing; However, the existing olfactory perception system has many defects, which cannot meet the needs of mobile applications: First, traditional gas detection devices (such as chromatographs or mass spectrometers) are bulky and cannot be integrated into mobile phones, and existing technologies lack compact designs, making it impossible for users to carry out real-time monitoring, for example, independent sensor arrays usually require external power supply and ventilation systems, increasing the weight and size of the device, which goes against the trend of thin and light mobile phones; Second, existing sensors (such as single-type gas sensors) are easily disturbed in complex environments, leading to false positives or missed detections, gas detection often involves multiple substances (such as VOCs, CO, or macromolecules), but existing arrays are difficult to uniformly contact the sensor surface in flowing gas, and the efficiency of gas inlet components such as piezoelectric micropumps is low, airflow distribution is uneven, affecting sensor response (such as MOS sensors are sensitive to resistance changes), and existing systems lack AI-driven signal conditioning modules, which cannot convert physical quantities (such as resistance, current, or frequency offset) in real time, resulting in delays and reduced accuracy; Third, the gas after conventional detection is often directly discharged without purifying harmful substances (such as CO or toxic gas), causing secondary pollution, and existing devices lack integrated filtration mechanisms (such as activated carbon filter cartridges) and cannot control the direction of odor transmission.
[0003] In view of this, the present application provides a mobile phone olfactory perception and odor transmission device. SUMMARY
[0004] The present application provides a mobile phone olfactory perception and odor transmission device, which solves the problem of inconvenient outdoor environmental gas detection in the prior art.
[0005] The technical scheme of the present application is as follows: a mobile phone olfactory perception and odor transmission device, comprising a mobile phone shell, the inner side of the mobile phone shell is fixedly connected with a control panel, characterized in that the top end of the inner side of the mobile phone shell is fixedly connected with a mounting box, one end of the mounting box is provided with a plurality of uniformly distributed air inlet holes, one end of the inner side of the mobile phone shell is provided with a detection cavity, the inner side of the detection cavity is provided with an olfactory perception assembly, the olfactory perception assembly comprises a plurality of piezoelectric micropumps fixedly installed on the inner side of the detection cavity, the inlet end of the piezoelectric micropump is communicated with the air inlet hole, the outlet end of the piezoelectric micropump is communicated with the inside of the detection cavity, one end of each of the adjacent two guide plates is provided with a mounting plate, and the mounting plate is fixedly connected to the inner side of the detection cavity, one side of each of the mounting plates is fixedly connected with a gas sensor array connected with the control panel signal, and the outlet end of the detection cavity is provided with an odor transmission assembly for discharging odor.
[0006] Preferably, the odor transmission assembly comprises a plurality of microcavities equally distributed along the width direction of the mounting box, a through hole is formed in the inner wall of both ends of each of the microcavities, a first installation cavity is formed in the inner side of the mounting box and communicated with the through hole, an activated carbon filter element is clamped on the inner side of the first installation cavity, a second installation cavity is formed in one end of the inner side of the mounting box, an exhaust pipe is fixedly connected to the inner side of the second installation cavity, a plurality of air supply pipes are fixedly connected to the outer side of the exhaust pipe and equally distributed along the length direction of the exhaust pipe, the inlet end of each of the air supply pipes is communicated with the inside of the first installation cavity, and a one-way valve is fixedly connected to the air supply pipe.
[0007] Preferably, air outlet holes are formed in both ends of the mounting box, and the two air outlet holes are respectively communicated with both ends of the exhaust pipe.
[0008] Preferably, an open slot is formed in one end of the first installation cavity, and a sealing plate is slidably connected to the open slot.
[0009] Preferably, the gas sensor array comprises a MOS sensor, an EC sensor and a QCM sensor. The MOS sensor is used for detecting VOC or flammable gas, the EC sensor is used for detecting CO, O2 or toxic gas, and the QCM sensor is used for detecting substances with a molecular weight greater than 300.
[0010] Preferably, the control panel comprises an AI processor, a signal conditioning module connected with the AI processor signal, a communication module, a power supply management module and a safety control module, the piezoelectric micropump is electrically connected with the AI processor, and the gas sensor array is signal connected with the signal conditioning module. The signal conditioning module is used for collecting data signals of the gas sensor array and converting the physical quantity into corresponding electrical signals transmitted to the AI processor for signal processing. The communication module is used for generating signals to the cloud platform for data interaction and establishing an odor database. The power supply management module is used for power optimization distribution of the piezoelectric micropump, the gas sensor array, the signal conditioning module and the communication module, so as to ensure safe operation of the system power. The safety control module is used for safety monitoring of over-temperature, electrical overload, short circuit and abnormal gas pressure and making emergency alarm response.
[0011] Preferably, the signal conditioning module comprises an identification layer, a conversion layer and an amplification layer. The identification layer is used for identifying the output resistance change amount (ΔR / R0) of the MOS sensor, the output nano-ampere level current (1nA~10μA) of the EC sensor and the output frequency offset (Δf) of the QCM sensor. The conversion layer is used for physical conversion of data signals of the MOS sensor, the EC sensor and the QCM sensor. The resistance data of the MOS sensor is converted into a voltage signal, and the conversion formula is: Vout=Vex×Rsensor / Rsensor+Rref. The current data of the EC sensor is converted into a voltage signal, and the conversion formula is: Vout=Isensor×Rfeedback. The frequency data of the QCM sensor is converted into a digital quantity, and the conversion formula is: Δf=fmeas-fbase. The amplification layer is used for amplifying the electrical signal through a preamplifier, wherein the input offset voltage is less than 5μV, and the bandwidth is DC-100Hz.
[0012] Preferably, the communication module comprises an application layer, a transmission layer, a network layer and a physical layer. The application layer is encrypted through AES-256-GCM to prevent data from being stolen. The transmission layer is used for guaranteeing end-to-end reliable transmission and flow control. The network layer is used for realizing route optimization and heterogeneous interconnection and preventing route hijacking. The physical layer processes electrical signal transmission and spectrum management.
[0013] The working principle and beneficial effects of the application are as follows: 1. By integrating the installation box and detection cavity at the top end of the mobile phone shell, combining the millimeter piezoelectric micropump and microcavity array, the traditional laboratory-level olfactory system is compressed into the mobile phone, the laminated layout of the guide plate and the mounting plate in the detection cavity realizes the directional flow of gas in a small space, avoids the redundant ventilation structure required by traditional independent equipment, greatly reduces the volume, and thus facilitates outdoor gas detection.
[0014] 2. The gas sensor array integrates three types of sensors: MOS (detects VOC / combustible gas), EC (detects CO / toxic gas), and QCM (detects macromolecular substances), covering the full spectrum of substance identification from inorganic gas to organic macromolecules. 3. After detection, the gas is introduced into the first mounting cavity through the microcavity through hole, and the harmful substances are adsorbed by the replaceable activated carbon filter element, solving the problem of direct emission pollution of traditional equipment; the purified gas is collected into the exhaust pipe through the one-way valve controlled gas supply pipe, and is directed out from the two end gas outlets, avoiding gas backflow pollution of the sensor.
[0015] 4. The signal conditioning module unifies resistance / current / frequency offset into a processable electrical signal, and converts physical quantities (such as resistance, current, and frequency offset) in real time, greatly reducing delay and improving detection accuracy. BRIEF DESCRIPTION OF DRAWINGS
[0016] The application will be further described in detail below in combination with the drawings and specific embodiments.
[0017] Figure 1 FIG. 1 is a structural schematic diagram of a mobile phone olfactory perception and odor transmission device according to the present application; Figure 2 FIG. 2 is a schematic diagram of the internal structure of the installation box according to the present application; Figure 3 FIG. 3 is a structural schematic diagram of the olfactory perception assembly according to the present application; Figure 4 FIG. 4 is an enlarged structural schematic diagram of part A of FIG. 3; Figure 3 Figure 5 FIG. 5 is a structural schematic diagram of the odor transmission assembly according to the present application; Figure 6 FIG. 6 is an enlarged structural schematic diagram of part B of FIG. 5; Figure 5 Figure 7 FIG. 7 is a system block diagram of the present application.
[0018] In the figure: 1, mobile phone shell; 2, control panel; 3, installation box; 31, air inlet hole; 32, detection cavity; 33, olfactory perception component; 331, piezoelectric micropump; 332, flow guide plate; 333, mounting plate; 334, gas sensor array; 34, odor transmission component; 341, microcavity; 342, through hole; 343, activated carbon filter element; 344, first mounting cavity; 345, sealing plate; 346, second mounting cavity; 347, exhaust pipe; 348, air supply pipe; 349, one-way valve; 340, air outlet hole. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0020] The present application discloses a mobile phone olfactory perception and odor transmission device, please refer to Figure 1 and Figure 7 A mobile phone olfactory perception and odor transmission device, comprising a mobile phone shell 1, the inner side of the mobile phone shell 1 is fixedly connected with a control panel 2, characterized in that the top end of the inner side of the mobile phone shell 1 is fixedly connected with an installation box 3, one end of the installation box 3 is provided with a plurality of evenly distributed air inlet holes 31, one end of the inner side of the mobile phone shell 1 is provided with a detection cavity 32, the inner side of the detection cavity 32 is provided with an olfactory perception component 33, the olfactory perception component 33 comprises a plurality of piezoelectric micropumps 331 fixedly installed in the inner side of the detection cavity 32, the inlet end of the plurality of piezoelectric micropumps 331 is communicated with the air inlet hole 31, the outlet end of the piezoelectric micropump 331 is communicated with the inside of the detection cavity 32, one end of each of the adjacent two flow guide plates 332 is provided with a mounting plate 333, the plurality of mounting plates 333 are fixedly connected to the inner side of the detection cavity 32, one side of each of the plurality of mounting plates 333 is fixedly connected with a gas sensor array 334 signal connected with the control panel 2, and the outlet end of the detection cavity 32 is provided with an odor transmission component 34 for guiding odor.
[0021] During detection, the piezoelectric micropump 331 is started to forcibly suck the environmental gas into the detection cavity 32 inside the installation box 3 through the air inlet hole 31, and the gas is uniformly guided to the mounting plate 333 under the guidance of the flow guide plate 332, so that the gas is in uniform contact with each gas sensor array 334, and the gas sensor array 334 can perform simulated olfactory detection on the substances in the gas, so as to judge whether there is a polluted gas in the environmental gas, and thus accurate gas detection is realized.
[0022] Further, the smell transmission assembly 34 comprises a plurality of microcavities 341 equidistantly distributed along the width direction of the mounting box 3, a through hole 342 is formed in the inner wall of the two ends of the plurality of microcavities 341, a first mounting cavity 344 is formed in the inner side of the mounting box 3 and communicates with the through hole 342, the inner side of the first mounting cavity 344 is clamped with an activated carbon filter element 343, one end of the inner side of the mounting box 3 is provided with a second mounting cavity 346, the inner side of the second mounting cavity 346 is fixedly connected with an exhaust pipe 347, a plurality of air supply pipes 348 equidistantly distributed along the length direction of the exhaust pipe 347 are fixedly connected to the outer side of the exhaust pipe 347, the inlets of the plurality of air supply pipes 348 are communicated with the inside of the first mounting cavity 344, a one-way valve 349 is fixedly connected to the air supply pipe 348, gas outlets 340 are formed in the two ends of the mounting box 3, the two gas outlets 340 are respectively communicated with the two ends of the exhaust pipe 347, an open slot is formed in one end of the first mounting cavity 344, and a sealing plate 345 is slidably connected to the open slot.
[0023] By integrating the mounting box 3 and the detection cavity 32 at the top end of the mobile phone shell 1, combining the millimeter-level piezoelectric micropump 331 and the microcavity 341 array, the traditional laboratory-level olfactory system is compressed into the mobile phone, the laminated layout of the flow guide plate 332 and the mounting plate 333 in the detection cavity 32 realizes the directional flow of gas in a small space, avoids the redundant ventilation structure required by the traditional independent equipment, greatly reduces the volume, and thus facilitates outdoor gas detection. The detected gas is introduced into each microcavity 341 through the through hole 342, and then is introduced into the second mounting cavity 346 in a directional manner, and the activated carbon filter element 343 in the second mounting cavity 346 can filter harmful substances in the gas, and then the gas is introduced into the exhaust pipe 347 in a one-way manner through the one-way valve 349 of the air supply pipe 348, avoiding backflow of the gas to pollute the sensor; finally, the gas is discharged through the gas outlets 340 at the two ends of the exhaust pipe 347. The whole process not only realizes rapid detection of environmental gas, but also can purify the detected gas, avoiding the problem of pollution caused by re-discharging into the air.
[0024] Further, the gas sensor array 334 comprises a MOS sensor, an EC sensor and a QCM sensor. The MOS sensor is used for detecting VOC or flammable gas, the EC sensor is used for detecting CO, O2 or toxic gas, and the QCM sensor is used for detecting substances with a molecular weight greater than 300.
[0025] Further, the control panel 2 comprises an AI processor, a signal conditioning module signal connected with the AI processor, a communication module, a power supply management module and a safety control module, the piezoelectric micropump 331 is electrically connected with the AI processor, and the gas sensor array 334 is signal connected with the signal conditioning module. The signal conditioning module is used for collecting data signals of the gas sensor array (334) and converting the physical quantity into corresponding electrical signals for transmission to the AI processor for signal processing; The communication module is used for generating signals to the cloud platform for data interaction and establishing an odor database; The power supply management module is used for power optimization distribution of the piezoelectric micropump 331, the gas sensor array 334, the signal conditioning module and the communication module, to ensure safe operation of the system power; The safety control module is used for safety monitoring of over-temperature, electrical overload, short circuit and abnormal gas pressure and making emergency alarm response.
[0026] Further, the signal conditioning module includes an identification layer, a conversion layer and an amplification layer; The identification layer is used for identifying the output resistance change (ΔR / R0) of the MOS sensor, the output nano-ampere current (1nA~10μA) of the EC sensor and the output frequency offset (Δf) of the QCM sensor; The conversion layer is used for physical conversion of data signals of the MOS sensor, the EC sensor and the QCM sensor Among them, the resistance data of the MOS sensor is converted into a voltage signal, and the conversion formula is: Vout=Vex×Rsensor / Rsensor+Rref; The current data of the EC sensor is converted into a voltage signal, and the conversion formula is: Vout=Isensor×Rfeedback; The frequency data of the QCM sensor is converted into a digital quantity, and the conversion formula is: Δf=fmeas-fbase; The amplification layer is used for amplifying the electrical signal by a preamplifier, wherein the input offset voltage is less than 5μV, and the bandwidth is DC-100Hz.
[0027] Further, the communication module includes an application layer, a transmission layer, a network layer and a physical layer; The application layer is encrypted by AES-256-GCM to prevent data from being stolen; The transmission layer is used to ensure end-to-end reliable transmission and flow control; The network layer is used to realize route optimization and heterogeneous interconnection, and prevent route hijacking; The physical layer processes electrical signal transmission and spectrum management.
[0028] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A mobile phone olfactory sensing and odor transmission device, comprising a mobile phone casing (1), wherein a control panel (2) is fixedly connected to the inner side of the mobile phone casing (1), characterized in that, A mounting box (3) is fixedly connected to the top of the inner side of the mobile phone casing (1). One end of the mounting box (3) has several evenly distributed air inlets (31). One end of the inner side of the mobile phone casing (1) has a detection cavity (32). An olfactory sensing component (33) is disposed inside the detection cavity (32). The olfactory sensing component (33) includes several piezoelectric micropumps (331) fixedly installed inside the detection cavity (32). The inlet ends of the piezoelectric micropumps (331) communicate with the air inlets (31). The outlet end is connected to the inside of the detection chamber (32). A plurality of guide plates (332) are fixedly connected to one end of the inner side of the detection chamber (32). An installation plate (333) is provided at one end of each of the two adjacent guide plates (332). A plurality of installation plates (333) are fixedly connected to the inner side of the detection chamber (32). A gas sensor array (334) connected to the control panel (2) is fixedly connected to one side of each of the installation plates (333). An odor transmission component (34) for odor extraction is provided at the outlet end of the detection chamber (32).
2. The mobile phone olfactory sensing and odor transmission device according to claim 1, characterized in that, The odor transmission component (34) includes a plurality of microcavities (341) equidistantly distributed along the width direction of the mounting box (3). Each of the microcavities (341) has a through hole (342) on the inner wall at both ends. The mounting box (3) has a first mounting cavity (344) communicating with the through hole (342) on the inner side. An activated carbon filter (343) is snapped into the inner side of the first mounting cavity (344). A second mounting cavity (346) is opened at one end of the inner side of the mounting box (3). An exhaust pipe (347) is fixedly connected to the inner side of the second mounting cavity (346). A plurality of air supply pipes (348) equidistantly distributed along the length direction of the exhaust pipe (347) are fixedly connected to the outer side of the exhaust pipe (347). The inlet ends of the plurality of air supply pipes (348) are all connected to the inside of the first mounting cavity (344). A one-way valve (349) is fixedly connected to each air supply pipe (348).
3. The mobile phone olfactory sensing and odor transmission device according to claim 2, characterized in that, The mounting box (3) has air vents (340) at both ends, and the two air vents (340) are respectively connected to the two ends of the exhaust pipe (347).
4. The mobile phone olfactory sensing and odor transmission device according to claim 2, characterized in that, An opening groove is provided at one end of the first mounting cavity (344), and a sealing plate (345) is slidably fitted into the opening groove.
5. The mobile phone olfactory sensing and odor transmission device according to claim 1, characterized in that, The gas sensor array (334) includes a MOS sensor, an EC sensor, and a QCM sensor; The MOS sensor is used to detect VOCs or combustible gases, the EC sensor is used to detect CO, O2 or toxic gases, and the QCM sensor is used to detect substances with a molecular weight greater than 300.
6. The mobile phone olfactory sensing and odor transmission device according to claim 5, characterized in that, The control panel (2) includes an AI processor, a signal conditioning module connected to the AI processor, a communication module, a power management module, and a safety control module. The piezoelectric micropump (331) is electrically connected to the AI processor, and the gas sensor array (334) is connected to the signal conditioning module. The signal conditioning module is used to acquire data signals from the gas sensor array (334) and convert them into corresponding electrical signals through physical quantities, which are then transmitted to the AI processor for signal processing. The communication module is used to transmit signals to the cloud platform for data interaction and to establish an odor database. The power management module is used to optimize the power allocation of the piezoelectric micropump (331), gas sensor array (334), signal conditioning module and communication module to ensure the safe operation of the system power. The safety control module is used to monitor for over-temperature, electrical overload, short circuit and abnormal air pressure and to respond to emergency alarms.
7. A mobile phone olfactory sensing and odor transmission device according to claim 6, characterized in that, The signal conditioning module includes an identification layer, a conversion layer, and an amplification layer; The identification layer is used to identify the output resistance change (ΔR / R0) of the MOS sensor, the output nanoampere current (1nA~10μA) of the EC sensor, and the output frequency shift (Δf) of the QCM sensor. The conversion layer is used to physically convert the data signals from the MOS sensor, EC sensor, and QCM sensor. The resistance data of the MOS sensor is converted into a voltage signal using the following formula: Vout=Vex×Rsensor / Rsensor+Rref; The current data from the EC sensor is converted into a voltage signal using the following formula: Vout = Isensor × Rfeedback; The frequency data of the QCM sensor is converted into digital values using the following formula: Δf = fmeas - fbase; The amplification layer is used to amplify electrical signals through a preamplifier, wherein the input offset voltage is less than 5μV and the bandwidth is DC-100Hz.
8. The mobile phone olfactory sensing and odor transmission device according to claim 7, characterized in that, The communication module includes an application layer, a transport layer, a network layer, and a physical layer; The application layer is encrypted using AES-256-GCM to prevent data theft. The transport layer is used to ensure reliable end-to-end transmission and flow control; The network layer is used to implement route optimization and heterogeneous interconnection, and to prevent route hijacking; The physical layer handles electrical signal transmission and spectrum management.