Rapid drug detection device based on integrated circuit

Abstract

The utility model discloses a rapid drug detection device based on an integrated circuit. The rapid drug detection device comprises a detection module, a control module, a display module, a micro camera module, a power supply module and a shell, the detection module comprises a dynamic noise suppression circuit, the dynamic noise suppression circuit comprises a low-pass filter, one end of a resistor R in the low-pass filter circuit is connected with an input signal, the other end of the resistor R is connected with the input end of a negative impedance converter NIC, the output end of the negative impedance converter is circuit output, and the input end of the negative impedance converter is connected with one end of a capacitor C; the other end of the capacitor is grounded. According to the technical scheme, the NIC is added into the rapid drug detection device, so that the device has the characteristics of high detection speed, high sensitivity and high portability, and is suitable for scenes such as law enforcement sites, border inspection and airport security inspection.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection device technical field, concretely relates to a kind of based on integrated circuit's drug rapid detection device. BACKGROUND

[0002] Illegal manufacturing, trafficking and abuse of drugs have been a global problem, seriously threatening public security, economic development and public health. With the increase of drug types and the continuous upgrading of disguise means, the traditional drug detection means gradually shows technical short board in practical application, and cannot meet the growing demand for on-site rapid detection. Therefore, in order to improve the efficiency and accuracy of drug detection, it is urgent to develop a new type of drug detection device.

[0003] At present, commonly used drug detection equipment includes chemical detection kit, gas chromatograph, mass spectrometer, etc. Although these devices can achieve high detection accuracy under laboratory conditions, they have significant shortcomings in practical application: slow detection speed: traditional laboratory detection method usually needs to go through sample collection, sample pretreatment, instrument analysis and other links, and the whole detection process may take several hours or even longer. This detection process obviously cannot meet the demand of law enforcement departments to respond quickly on site. Insufficient sensitivity and stability: the recognition ability of some portable drug detection equipment to low-concentration drug molecules is limited in complex scenes, which is easily affected by environmental noise, background gas interference and other factors, resulting in unstable detection results or even false positives or false negatives. High complexity of equipment: many high-precision detection equipment depends on complex hardware structure and operation process, which not only increases the manufacturing and maintenance cost of equipment, but also puts forward higher requirements for the professional quality of users, limiting the popularization and promotion of equipment. Poor portability: laboratory detection equipment is large in size and heavy in weight, and usually needs to be used in fixed place, so it is difficult to realize real-time drug detection for on-site law enforcement. In addition, complex operating environment (such as border inspection station or outdoor scene) puts higher requirements on the portability of equipment.

[0004] With the development of sensor technology, integrated circuit technology and intelligent algorithm, portable drug detection equipment has gradually attracted attention. This kind of equipment usually adopts multi-sensor fusion technology, and comprehensively detects the optical, odor and molecular characteristics of the target sample, so as to improve the detection sensitivity and reliability. However, there are still some bottleneck problems in the existing portable drug detection equipment, for example: the limitation of sensor technology: most portable devices only rely on a single type of sensor (such as optical spectrum sensor), and its detection range and precision are limited, which is difficult to cope with the complexity of drug molecular structure. Weak anti-interference ability: portable devices usually work in complex electromagnetic environment, and the signal processing unit inside the device is easily disturbed by external high-frequency noise, affecting the accuracy of the detection result. Insufficient environmental adaptability: when the drug detection equipment works in high humidity, high temperature or low temperature environment, the sensitivity of the sensor is easily reduced, and the existing equipment lacks environmental adaptability design, and it is difficult to realize real-time adjustment of detection parameters.

[0005] In order to solve the above problems, a new type of drug rapid detection device becomes an urgent need in the current technical field. The existing detection instrument cannot adapt to the current drug detection demand, especially in complex scenes such as packaging diversity. The traditional technology is still inefficient in drug detection and processing, and the recognition accuracy and error checking precision are limited. Practical new type content

[0006] In view of the above problems in the prior art, in order to solve the above technical problems, the utility model discloses a drug rapid detection device based on integrated circuit, by adding negative impedance converter NIC, so that the device has the characteristics of fast detection speed, high sensitivity and strong portability, and is suitable for law enforcement scene, border inspection and airport security scene.

[0007] A drug rapid detection device based on integrated circuit, comprising:

[0008] The detection module includes a spectrum sensor, a chemical sensor and an electrochemical sensor, which are respectively used for collecting optical characteristics, volatile organic compound characteristics and molecular characteristic signals of the sample. The sample concentration device is built-in in the detection module, and the trace sample is pre-concentrated to improve the detection sensitivity and accuracy. The detection module further includes a dynamic noise suppression circuit, which includes a low-pass filter. One end of the resistor R in the low-pass filter circuit is connected with the input signal, and the other end is connected with the input end of the negative impedance converter NIC. The output end of the negative impedance converter is the circuit output. The input end of the negative impedance converter is connected with one end of the capacitor C, and the other end of the capacitor is grounded. The high-frequency noise in the detection signal is filtered in real time at the hardware level. The detection module further includes an adaptive calibration unit for adjusting the sensor parameters in real time according to the environmental conditions.

[0009] The control module is an integrated circuit including a signal processing unit, a data analysis unit and a communication unit, which is used for processing, analyzing and transmitting the signals collected by the detection module; the detection module and the control module are connected through optical fibers to avoid electromagnetic interference, and high-precision signal transmission is realized through an optoelectronic conversion unit.

[0010] The miniature camera module is used for real-time shooting of the appearance of the sample and generating records for providing additional forensic support for law enforcement personnel; the miniature camera module is connected with the control module through a high-speed serial interface MIPI CSI to ensure real-time transmission and processing of high-resolution image data.

[0011] The display module is used for real-time output of the detection results; the display module is connected with the control module through a high-speed serial interface SPI bus.

[0012] The power module includes a rechargeable lithium battery and a fast charging interface; the power module is directly connected with the detection module, the control module and the display module through a multi-path power supply interface.

[0013] The shell has a honeycomb structure inside, including a polycarbonate outer layer, a silicone rubber sealing layer and an aluminum-magnesium alloy inner layer, providing IP68 level waterproofness.

[0014] Preferably, the dynamic noise suppression circuit specifically includes:

[0015] The multi-stage active filter unit adopts a three-stage active filter circuit, wherein the first stage is a low-pass filter for filtering out high-frequency interference signals; the second stage is a band-pass filter for signal enhancement for the target frequency band; and the third stage is a notch filter for precise suppression of specified interference frequencies.

[0016] The signal conditioning unit includes a voltage follower providing high input impedance and low output impedance to ensure stable signal transmission.

[0017] The automatic gain control circuit adjusts the output signal strength in real time and automatically adjusts the gain level according to the signal amplitude to optimize the dynamic range and reduce signal distortion.

[0018] Through the dynamic noise suppression circuit structure, high-frequency noise is filtered out in real time at the hardware level, while the target signal is enhanced, improving the signal processing accuracy and robustness of the detection module in complex electromagnetic environments.

[0019] Preferably, the sample concentration device of the detection module adopts a microfluidic chip to realize uniform distribution of the sample, reduce sample loss and improve the detection sensitivity of low-concentration samples.

[0020] Preferably, the optical fiber connection connects the detection module and the control module through a pluggable optical fiber interface, and a protective cover is arranged around the interface to prevent the optical fiber connector from being damaged during use.

[0021] Preferably, the miniature camera module includes a high-resolution imaging unit and a ring-shaped LED fill light for shooting clear images of the sample in low-light environments, improving image recording quality and providing accurate data for forensic analysis.

[0022] Preferably, the display module adopts an embedded touch screen and is connected to the device shell through a hinge structure, which can adjust the display direction at multiple angles to adapt to different use scenarios.

[0023] Preferably, the power module includes a magnetic charging interface and an overcurrent protection circuit that can automatically cut off power when abnormal current occurs to protect the device.

[0024] Preferably, the shell adopts a honeycomb structure to enhance heat dissipation; the honeycomb cells are filled with high-thermal-conductivity ceramic material; and the shell sealing structure adopts an integral molding design combined with double-layer silicone sealing rings to provide IP68-level waterproof performance.

[0025] Preferably, the detection module includes a sample inlet cabin, and the inner wall of the sample inlet cabin is provided with a corrosion-resistant coating to protect the device from being damaged by corrosive samples.

[0026] The utility model provides a kind of based on integrated circuit's drug rapid detection device, the beneficial technical effects that can be realized are as follows:

[0027] 1, the dynamic noise suppression circuit of the application includes a low-pass filter, one end of resistor R is connected to the input signal in the low-pass filter circuit, the other end is connected to the input end of negative impedance converter NIC, the output end of negative impedance converter is the circuit output, the input end of negative impedance converter is connected to one end of capacitor C, the other end of capacitor is grounded, and high-frequency noise in the detection signal is filtered out in real time at hardware level. After introducing negative impedance converter (NIC) in the low-pass filter, one end of resistor R is connected to the input signal, the other end is connected to the input end of NIC, the output end of NIC is used as the circuit output, and the input end of NIC is also connected to one end of capacitor C, and the other end of capacitor is grounded. This structure realizes real-time filtering of high-frequency noise in the detection signal at the hardware level. Specifically, the negative impedance converter provides negative impedance characteristics, compensates or cancels the parasitic resistance effect in the circuit, improves the quality factor (Q value) of the filter, and thus enhances the suppression ability of high-frequency noise. In addition, the design also improves the frequency selectivity and stability of the filter, improves the signal processing accuracy and reliability of the detection device in complex electromagnetic environment.

[0028] 2. The significant effect of the dynamic noise suppression circuit: the detection module integrates the dynamic noise suppression circuit, through the multi-stage active filter unit, the signal adjusting unit and the automatic gain control circuit, the high-frequency noise in the detection signal is filtered in real time, the purity and stability of the signal are effectively improved, the detection result deviation caused by environmental electromagnetic interference is avoided. At the same time, the circuit can also enhance the amplitude of the target signal, improve the signal processing capability of the detection device in complex environment, so that the equipment can normally operate in the high electromagnetic interference scene.

[0029] 3. High sensitivity improvement of sample concentration device: the detection module is built-in sample concentration device, adopts microfluidic chip, through optimizing sample distribution and separation efficiency, the trace drug sample is pre-concentrated, the detection sensitivity of the sensor to low concentration drug molecules is greatly improved. This function is especially suitable for rapid identification of trace or diluted drug samples.

[0030] 4. Rapid detection: the detection module integrates optical sensor, chemical sensor and electrochemical sensor, which can collect optical characteristics, odor characteristics and molecular characteristics of the sample, realize multi-modal collaborative detection. Combined with dynamic noise suppression and sample concentration function, the detection time is greatly shortened, which meets the demand of rapid response on site. Strong environmental adaptability: the adaptive calibration unit in the detection module dynamically adjusts the sensor parameters according to environmental conditions (such as temperature, humidity, etc.), so as to ensure that the equipment can work efficiently in variable or extreme environment. Strong anti-interference ability: the detection module and the control module are connected by optical fiber, combined with the photoelectric conversion unit, the influence of electromagnetic interference is avoided, and the data transmission rate and signal accuracy are improved. Portability and durability: the shell adopts honeycomb structure, combined with lightweight polycarbonate and aluminum-magnesium alloy material design, not only reduces the weight of the equipment, but also has IP68 level waterproof performance, which is suitable for complex application scenes such as border inspection and airport security.

[0031] 5. Diversified data support: the miniature camera module can take pictures of the sample appearance in real time and generate records, which can provide visual assistance for the detection results; the display module can output the detection results in real time, which can meet the rapid decision-making demand of law enforcement on site. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0033] Figure 1 It is a low-pass filter structure schematic diagram of the dynamic noise suppression circuit of the present application.

[0034] Figure 2 is a structure diagram of a drug rapid detection device based on an integrated circuit. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in 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 labor fall within the scope of the present application.

[0036] Embodiment 1

[0037] In view of the above problems mentioned in the prior art, in order to solve the above technical problems, the present application discloses a drug rapid detection device based on an integrated circuit.

[0038] In one embodiment, when a law enforcement department conducts on-site drug inspection, the drug rapid detection device in the present application is used to detect suspicious items, and the operation steps are as follows:

[0039] Sample preparation and sample injection: a part of the powder or liquid sample of the suspicious item is placed in the sample injection cabin of the detection module. The inner wall of the sample injection cabin is treated with a corrosion-resistant coating to ensure that the sample does not corrode the equipment. The detection module pre-concentrates the trace sample through the sample concentration device to improve the detection signal strength of the drug characteristic molecules.

[0040] Feature acquisition: the optical spectrum sensor in the detection module collects the optical features of the sample, the chemical sensor detects the characteristic signals of volatile organic compounds, and the electrochemical sensor captures the molecular signals specific to drugs. The signals of the above-mentioned sensors are processed by a dynamic noise suppression circuit to filter out high-frequency noise and ensure signal stability. Signal processing and analysis: the signals collected by the detection module are transmitted to the signal processing unit of the control module through an optical fiber, and the signal processing unit analyzes the digitized detection signals. The data analysis unit built in the control module identifies the type of drug based on a neural network algorithm, and determines whether the detection sample contains drugs and the specific type.

[0041] Result display and recording: the detection results are output to the display module in real time, and the law enforcement personnel view the drug detection results through the high-resolution touch screen. If further recording is needed, the miniature camera module takes a real-time picture of the sample appearance and saves the detection data. Data storage and transmission: the detection results are uploaded to the system cloud platform through the communication unit in the control module, the storage module of the cloud platform saves the detection records, and the data analysis module performs further big data analysis for subsequent law enforcement and forensic analysis.

[0042] In one embodiment, the device can be applied in border inspection. At the border inspection station, law enforcement officers use the device to detect drugs in the goods in the transit vehicle, and the operation process is as follows: sample introduction and sample detection: a small amount of suspicious sample (such as powder, liquid or gas) is extracted from the goods and placed in the sample introduction cabin of the detection module. The sample concentration device automatically separates and concentrates the sample, enhancing the characteristic signal of the drug molecules. Multi-modal collaborative detection: the optical spectrum sensor analyzes the optical characteristics of the sample, the chemical sensor detects the odor signal of the sample, and the electrochemical sensor captures the molecular signal. The data collected by the sensor is processed by the dynamic noise suppression circuit to reduce electromagnetic interference in the complex environment. Intelligent calibration and analysis: the adaptive calibration unit automatically adjusts the sensor parameters according to the on-site temperature and humidity, ensuring the sensitivity and accuracy of the detection. The analysis result is quickly output by the data analysis unit, and the display module provides the drug detection result in a visual way. Result archiving and cloud synchronization: the miniature camera module takes pictures of the sample and saves them to the control module, and the detection result is uploaded to the system cloud platform through the 5G communication unit. The cloud platform analysis module optimizes the drug recognition algorithm combined with historical detection data.

[0043] In one embodiment, airport security drug rapid screening, in airport security, the device is used to screen whether the suspicious items carried by passengers contain drugs: portable detection operation: the portable design and fast start function of the detection device allow security personnel to take it directly to the side of the passenger's luggage to detect suspicious items in real time. Multi-light source auxiliary analysis: the miniature camera module combines with the ring-shaped LED fill light to take high-resolution images in low-light environments, assisting in identifying sample appearance characteristics. Fast judgment: the drug detection result is displayed on the touch screen within 5 minutes, and the security personnel can immediately take corresponding measures for the passengers, improving the efficiency of security inspection. Data security management: all detection data is transmitted to the cloud platform of the airport security center through Wi-Fi, realizing real-time sharing and tracking of results, meeting the needs of airport security management.

[0044] Specifically, a drug rapid detection device based on an integrated circuit includes: a detection module containing an optical spectrum sensor, a chemical sensor and an electrochemical sensor, respectively used to collect optical characteristics, volatile organic compound characteristics and molecular characteristic signals of a sample; a sample concentration device built-in the detection module for pre-concentration of a trace sample, improving detection sensitivity and accuracy; as shown in the accompanying Figure 1The dynamic noise suppression circuit low-pass filter structure shown, the detection module further includes a dynamic noise suppression circuit, the dynamic noise suppression circuit includes a low-pass filter, one end of the resistor R in the low-pass filter circuit is connected with the input signal, the other end is connected with the input end of the negative impedance converter NIC, the output end of the negative impedance converter is the circuit output, the input end of the negative impedance converter is connected with one end of the capacitor C, and the other end of the capacitor is grounded; high-frequency noise in the detection signal is filtered in real time at the hardware level; the detection module further includes an adaptive calibration unit for adjusting sensor parameters in real time according to environmental conditions;

[0045] The control module adopts an integrated circuit, including a signal processing unit, a data analysis unit and a communication unit, for processing, analyzing and transmitting the signals collected by the detection module; the detection module and the control module are connected through an optical fiber to be immune to electromagnetic interference, and high-precision transmission of signals is realized through an optoelectronic conversion unit.

[0046] The miniature camera module is used for real-time shooting of the appearance of the sample and generating records for providing additional forensic support for law enforcement personnel; the miniature camera module is connected with the control module through a high-speed serial interface MIPI CSI to ensure real-time transmission and processing of high-resolution image data;

[0047] The display module is used for real-time output of the detection results; the display module is connected with the control module through a high-speed serial interface SPI bus;

[0048] The power module includes a rechargeable lithium battery and a fast charging interface; the power module is directly connected with the detection module, the control module and the display module through a multi-path power supply interface;

[0049] The shell has a honeycomb structure inside, including a polycarbonate outer layer, a silicone rubber sealing layer and an aluminum-magnesium alloy inner layer, providing IP68 level waterproofness.

[0050] The detection module is the core component of the device, responsible for collecting and processing various characteristic information of the drug sample. Its structure and function are specifically described as follows: the optical spectrum sensor is used for collecting the optical characteristics of the sample, and by analyzing the absorption, reflection or scattering characteristics of different wavelengths of light of the sample, the specific drug molecules in the sample are identified. The working principle of the optical spectrum sensor is to emit light of a specific wavelength, receive and analyze the spectral changes after passing through the sample, and extract the characteristic signals of the target substance. Application scenarios include detecting the molecular optical characteristics of powder or liquid drug samples, such as the characteristic absorption peaks of cannabis or methamphetamine molecules.

[0051] Chemical sensors are used to detect volatile organic compounds (VOCs) by identifying specific odor molecules released by drugs. The working principle is based on the chemical reaction between the sensitive film and the target gas molecules, generating an electrical signal as output. Application scenarios are suitable for detecting the odor or trace gas evaporated from the sample, such as the unique volatile components of methamphetamine.

[0052] Electrochemical sensors identify the molecular characteristics of drugs by detecting the electrical signals generated by sample molecules in electrochemical reactions. The working principle is that sample molecules undergo redox reactions on the electrode surface, and the amount of current or voltage change reflects the concentration of target molecules. Application scenarios detect the molecular properties of liquid drugs (such as ketamine solution).

[0053] Sample concentration devices use microfluidic chips to pre-treat samples through internal microchannel structures, concentrate target drug molecules in low-concentration samples, and improve sensor sensitivity. Structural features include integrated micro-sample collection tanks and separation channels, and sample separation and concentration are achieved by electric field driving in microchannels. The role is to reduce background interference signals and improve the response ability of the sensor to trace drug molecules.

[0054] Dynamic noise suppression circuit: filters out high-frequency interference signals at the hardware level to ensure the purity of the sensor acquisition signal. Circuit structure includes low-pass filter, band-pass filter and notch filter, used to suppress noise in specific frequency bands. Technical advantages are particularly suitable for complex electromagnetic environments, ensuring signal processing accuracy.

[0055] Adaptive calibration unit dynamically adjusts sensor parameters according to environmental temperature and humidity or sample state, optimizing detection sensitivity. Functional design includes built-in environmental sensors that collect external conditions in real time, and adjusts the gain or operating voltage of the sensor through algorithms.

[0056] The control module is responsible for signal processing, data analysis and communication, and is the "intelligent center" of the device. The signal processing unit receives the signal data of the detection module, and performs filtering, amplification and digitization processing on the collected raw signal. Design features use high-performance analog-to-digital converters (ADC) and digital signal processors (DSP), suitable for high-precision data processing.

[0057] The data analysis unit analyzes the signal characteristics based on built-in drug recognition algorithms (such as neural network models) to determine the type and concentration of the drug. The extended function supports model updates and the storage of historical detection data. The communication unit supports multiple communication methods such as Wi-Fi, Bluetooth, or 5G, and transmits the detection results in real time to the display module or cloud platform. The optical fiber connection and photoelectric conversion unit connect the detection module and control module through optical fiber, and the electrical signal is converted into optical signal by the photoelectric conversion unit before transmission, reducing interference during transmission. It provides high-speed, anti-interference data transmission capability. The miniature camera module is used to take pictures of the sample appearance, providing additional visual information and evidence record for drug detection. The imaging unit uses a high-resolution image sensor to support high-definition shooting. Cooperate with the ring-shaped LED fill light to adapt to the weak light environment. The high-speed serial interface (MIPI CSI) connection ensures efficient transmission and real-time processing of image data, ensuring image clarity and minimizing delay. Real-time capture of sample state images provides multi-modal evidence support in combination with detection results.

[0058] The display module is used to display the detection results in real time, improving the user interaction of the device. The touch screen supports multi-point touch operation, and the user can quickly switch between detection history records or select function menus. The high-speed serial interface (SPI bus) connection ensures real-time display of detection results with a delay of less than 50 milliseconds.

[0059] The power module provides continuous power for the normal operation of the device. The rechargeable lithium battery supports long-time work, and a single charge can last more than 8 hours. The fast charging interface uses USB-C interface, supports fast charging protocol, and can be charged to 80% within 30 minutes. The multi-channel power supply interface provides independent stable voltage and current for the detection module, control module and display module.

[0060] The shell provides protection and portability for the device. The honeycomb structure: The inside of the shell adopts a honeycomb structure, enhancing heat dissipation efficiency and impact resistance. Three-layer material design: outer layer: polycarbonate, providing wear resistance and impact resistance. Middle layer: silicone rubber, providing waterproof and dustproof performance. Inner layer: aluminum-magnesium alloy, improving equipment strength and enhancing electromagnetic shielding ability. Protection performance: IP68 level waterproof performance, can work normally in wet or dusty environment.

[0061] The modules work in coordination through the control module. The detection module collects sample characteristic signals, and the data is transmitted to the control module for processing, and then the detection results are output through the display module. The camera module provides auxiliary image information, and the power module provides power support for the overall operation. Signal transmission: the detection module and the control module are connected through optical fiber, image data is transmitted through the MIPI CSI interface, and the detection results are displayed through the SPI interface. Workflow: sample is injected and characteristic signals are collected. The dynamic noise suppression circuit optimizes signal quality. The adaptive calibration unit adjusts the sensor parameters. The control module processes the data, outputs the detection results, and synchronizes the cloud platform.

[0062] Preferably, the dynamic noise suppression circuit specifically includes:

[0063] Multi-stage active filter unit: a three-stage active filter circuit is adopted, wherein the first stage is a low-pass filter for filtering out high-frequency interference signals; the second stage is a band-pass filter for signal enhancement in the target frequency band; and the third stage is a notch filter for precise suppression of specified interference frequencies.

[0064] Signal conditioning unit: including a voltage follower, providing high input impedance and low output impedance to ensure stable signal transmission;

[0065] Automatic gain control circuit: real-time adjustment of output signal strength, automatic adjustment of gain level according to signal amplitude to optimize dynamic range and reduce signal distortion;

[0066] Through the structure of the dynamic noise suppression circuit, high-frequency noise is filtered out in real time at the hardware level, while the target signal is enhanced, improving the signal processing accuracy and robustness of the detection module in complex electromagnetic environments.

[0067] In some embodiments, the sample concentration device of the detection module adopts a microfluidic chip, which realizes uniform distribution of the sample, reduces sample loss, and improves the detection sensitivity of low-concentration samples.

[0068] In some embodiments, the optical fiber connection connects the detection module and the control module through a pluggable optical fiber interface, and a protective cover is provided around the interface to prevent the optical fiber connector from being damaged during use.

[0069] In some embodiments, the miniature camera module includes a high-resolution imaging unit and a ring-shaped LED fill light, which is used to take clear images of the sample in low-light environments, improving image recording quality and providing accurate data for forensic analysis.

[0070] In some embodiments, the display module uses an embedded touch screen connected to the device shell through a hinge structure, which can adjust the display direction at multiple angles to adapt to different use scenarios.

[0071] In some embodiments, the power module includes a magnetic charging interface and an overcurrent protection circuit that can automatically disconnect power in the event of abnormal current to protect the device.

[0072] In some embodiments, the shell adopts a honeycomb structure to enhance heat dissipation capability; the honeycomb cells are filled with high-thermal-conductivity ceramic material; the shell sealing structure adopts an integrated design combined with a double-layer silicone seal ring to provide IP68-level waterproof performance.

[0073] In some embodiments, the detection module includes a sample inlet cabin, the inner wall of which is provided with a corrosion-resistant coating to protect the device from damage by corrosive samples.

[0074] The utility model provides a kind of based on integrated circuit's drug rapid detection device, the beneficial technical effects that can be realized are as follows:

[0075] 1, the remarkable effect of dynamic noise suppression circuit: detection module integrates dynamic noise suppression circuit, through multistage active filter unit, signal adjusting unit and automatic gain control circuit, real-time filtering is carried out to high-frequency noise in detection signal, effectively improves the purity and stability of signal, avoids the deviation of detection result caused by environmental electromagnetic interference.Meanwhile, the circuit can also enhance the amplitude of target signal, improve the signal processing capability of detection device in complex environment, so that the device can normally operate in high electromagnetic interference scene.

[0076] 2. High sensitivity improvement of sample concentration device: sample concentration device is built-in in detection module, microfluidic chip is adopted, through optimizing sample distribution and separation efficiency, trace drug sample is pre-concentrated, which greatly improves the detection sensitivity of sensor to low concentration drug molecules.This function is especially suitable for rapid identification of trace or diluted drug samples.

[0077] 3. Rapid detection: detection module integrates optical spectrum sensor, chemical sensor and electrochemical sensor, can collect optical characteristics, odor characteristics and molecular characteristics of sample, realizes multimodal collaborative detection.Combined with dynamic noise suppression and sample concentration function, detection time is greatly shortened, which meets the demand of on-site rapid response. Strong environmental adaptability: adaptive calibration unit in detection module dynamically adjusts sensor parameters according to environmental conditions (such as temperature, humidity, etc.), to ensure that the device works efficiently in variable or extreme environment. Strong anti-interference ability: optical fiber connection is adopted between detection module and control module, combined with photoelectric conversion unit, to avoid the influence of electromagnetic interference, while improving data transmission rate and signal accuracy. Portability and durability: the shell adopts honeycomb structure, combined with lightweight polycarbonate and aluminum-magnesium alloy material design, not only reduces the weight of the device, but also has IP68-level waterproof performance, suitable for complex application scenarios such as border inspection and airport security.

[0078] The above describes in detail the drug rapid detection device based on integrated circuits, and the principle and implementation mode of the present application are described by using specific examples, and the above description of the examples is only used to help understand the core idea of the present application; meanwhile, for those skilled in the art, according to the idea and method of the present application, the specific implementation mode and application range will be changed, and the above description should not be understood as a limitation of the present application.

Claims

1. An integrated circuit-based drug quick detection device, characterized by, The application relates to a portable multi-sensor detection device for volatile organic compounds, comprising: a detection module, which comprises a spectrum sensor, a chemical sensor and an electrochemical sensor for collecting optical characteristics, volatile organic compound characteristics and molecular characteristic signals of a sample respectively; the detection module is internally provided with a sample concentration device for pre-concentration treatment of trace samples; the detection module further comprises a dynamic noise suppression circuit, which comprises a low-pass filter, one end of a resistor R in the low-pass filter circuit is connected with an input signal, the other end is connected with an input end of a negative impedance converter NIC, an output end of the negative impedance converter is a circuit output, the input end of the negative impedance converter is connected with one end of a capacitor C, the other end of the capacitor is grounded, and the dynamic noise suppression circuit is used for filtering high-frequency noise in a detection signal in real time; the detection module further comprises a self-adaptive calibration unit for adjusting sensor parameters in real time according to environmental conditions; a control module, which adopts an integrated circuit and comprises a signal processing unit, a data analysis unit and a communication unit, and is used for processing, analyzing and transmitting signals collected by the detection module; the detection module and the control module are connected through an optical fiber; a miniature camera module, which is used for real-time shooting of a sample appearance and generating a record and is used for providing additional forensic support for law enforcement personnel; the miniature camera module is connected with the control module through a high-speed serial interface MIPI CSI, so as to ensure real-time transmission and processing of high-resolution image data; a display module, which is used for real-time output of detection results; the display module is connected with the control module through a high-speed serial interface SPI bus; a power module, which comprises a rechargeable lithium battery and a fast charging interface; the power module is directly connected with the detection module, the control module and the display module through a multi-path power supply interface; a shell, which adopts a honeycomb structure inside and comprises a polycarbonate outer layer, a silicone rubber sealing layer and an aluminum-magnesium alloy inner layer.

2. The integrated circuit-based drug quick test device according to claim 1, wherein The dynamic noise suppression circuit specifically comprises: a multi-stage active filter unit: a three-stage active filter circuit is adopted, wherein the first stage is a low-pass filter for filtering high-frequency interference signals; the second stage is a band-pass filter for signal enhancement of a target frequency band; and the third stage is a notch filter; a signal adjusting unit: comprising a voltage follower; an automatic gain control circuit: for real-time adjustment of output signal intensity and automatic adjustment of gain level according to signal amplitude.

3. The integrated circuit-based drug quick test device according to claim 1, wherein The sample concentration device of the detection module adopts a micro-fluidic chip.

4. The integrated circuit-based drug quick test device according to claim 1, wherein The optical fiber connection connects the detection module and the control module through a pluggable optical fiber interface, and a protective cover is arranged around the interface.

5. The integrated circuit-based drug quick test device according to claim 1, wherein The miniature camera module comprises a high-resolution imaging unit and a ring-shaped LED fill light.

6. The integrated circuit-based drug quick test device according to claim 1, wherein The display module adopts an embedded touch screen and is connected with the equipment shell through a hinge structure.

7. The integrated circuit-based drug quick test device according to claim 1, wherein The power module comprises a magnetic charging interface and an overcurrent protection circuit.

8. An integrated circuit based drug quick testing device as claimed in any one of claims 1 to 7, wherein, The shell adopts a honeycomb structure; the honeycomb units are filled with high-thermal-conductivity ceramic materials; and the sealing structure of the shell adopts an integral forming design.

9. An integrated circuit based drug quick testing device as claimed in any one of claims 1 to 7, wherein, The detection module comprises a sample inlet cabin, and the inner wall of the sample inlet cabin is provided with a corrosion-resistant coating.

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