Switch Sensor Research Articles

Accident Prediction and Crash Recovery by using Car Black Box

In the desire of experiencing the taste of speed and not following the traffic rules many people are losing their lives in the road accidents. As they were happening far from the living areas the others will not be aware about these accidents and also due to lack of information regarding the accident, the medical facilities were also not able to reach them. To overcome these situations we have designed a GSM-GPS based intelligent vehicle tracking system using Raspberry Pi controller. This system consists of light sensor, MQ135 Alcohol sensor, temperature sensor, accelerometer, video recorder, limit switch sensor, GPS and GSM modems to prevent vehicles from collisions and alert while colliding. All the sensors are connected to the Raspberry pi controller. In addition to this an SD card is provided to collect and save the data from the sensors. We can recover this data from this SD card to know the reason behind the accident and can avoid it from happening again. When an accident is occurred the information about the accident will be sent to the preregistered number through an sms. The main feature of this system is whenever the sensors records a value beyond the specified value whether it is about crossing the lane line, not wearing seat belt, the driver is drunk, or reaching close to the other vehicles etc.., an alert message will be sent to the preregistered number.

Innovative Configuration Design of Two-Wire Tip Mechanisms for a Tipping-Bucket Rain Gauge

This paper evaluates the measurement accuracy of the three designs of an innovative Tipping-Bucket Rain Gauge (TBRG) tip mechanism. A water-level detecting circuit is used to replace the conventional reed switch sensor, which addresses the disadvantages of the magnetic sensing method that became a factor in quantification uncertainties. The TBRG configuration designs were the bucket-feed, which detects the presence of water inside the bucket, and the bottom-feed and the center-feed, which use the tip-impact method in measuring rainfall. The constant flow method is used in the experimentation. The bucket-feed shows potential in precision rainfall measurement for having -3.84% and -2.68% accuracy errors at 6 mL/min and 11 mL/min respectively, without correction algorithm applied. The tip-impact application for the bottom-feed and the center-feed resulted in a higher error percentage from the volumetric flow samples. The result indicates that actual detection in the bucket brings more measurement accuracy than the tip-counting technique.

Homogeneous and Universal Detection of Various Targets with a Dual‐Step Transduced Toehold Switch Sensor

Toehold switch sensors represent a class of new advances that allow specific targets to trigger in situ expression of a protein reporter. Although they offer unique advantages of a label-free nature and high portability, they generally require repeated sequence design, high expenditure, and laborious optimization of toehold switch sequences according to different targets. To simplify the sensing process further and to improve its practicability, we innovatively introduce a dual-step pre-transduction upon traditional toehold switch sensor. Through two successive toehold-mediated strand-displacement reactions that are initiated, respectively, by a linear and an associative trigger, different DNAs, RNAs, or ligands of functional nucleic acids can be generally transduced into the input of one high-performance toehold switch sensor. This advance greatly increases the target range. Furthermore, the whole process is signal-on, homogeneous, and free of any requirements for complicated operations such as probe labeling, separation, and reconstruction of the toehold switch, being promising and practical even in portable or point-of-care assays.

Sensitivity fluorescent switching sensor for Cr (VI) and ascorbic acid detection based on orange peels-derived carbon dots modified with EDTA

Orange peels were applied as precursors to synthesize carbon dots (CDs) via a one-step green hydrothermal method. The relationship between quantum yield and volatile oils in 14 different varieties of orange peels were investigated. The CDs showed strong blue fluorescence and were further modified with EDTA. Compared with the CDs, the CDs@EDTA exhibited higher sensitivity for Cr(VI) detection with a LOD of 10 nM. The CDs@EDTA was proved to be an effective fluorescent sensor element for Cr(VI) detection in water samples with recoveries ranged from 92.09% to 104.87% (RSD < 5%). Moreover, CDs@EDTA/Cr(VI) system was further developed as a fluorescent “off–on” sensor for ascorbic acid (AA) detection with a LOD of 0.1 μM. Further, the sensor had been successfully applied for the analysis of AA in fresh oranges and commercial orange juices. The recoveries of AA in fresh oranges and orange juices were 92.58–106.76% and 91.54–104.95%, respectively.

Monte Carlo simulations of nano-rod filler in stretched polymer nanocomposites

Conductive polymer nanocomposites material (PNCs) is one type of alternative polymeric materials to replace high-cost intrinsically conductive polymers (ICPs). PNC is a composite of electrical insulative polymer matrix and electrically conductive filler in which it is made by less complicated synthesis protocols but has similar quantitative conductive properties to existing conducting polymers. Therefore, PNC is a candidate for many applications, such as, light-emitting diodes, flexible electrodes, batteries and strain sensors [1]. In this study, an in-house Monte-Carlo simulation was used to investigate the percolation paths of the 3D model of nanorod filler network in the polymer lattice and estimate the nanorod concentration at percolation threshold [2]. The model also includes the nanorod filler orientation angles. We then focused on the effects of stretching lattice on the percolation threshold. The dimension of lattice length was varied with constant volume for each simulation system (incompressible material). Results of simulations showed that the percolation thresholds decreased when increasing the lattice stretching and the nanorod orientation angles have been confined by finite lattice dimension which shows there is the effect of orientations angle on the percolation threshold. Our finding will be a useful guideline for designing polymer nanocomposite as a switching sensor.

Distributed filtering for uncertain systems under switching sensor networks and quantized communications

This paper considers the distributed filtering problem for a class of stochastic uncertain systems under quantized data flowing over switching sensor networks. Employing the biased noisy observations of the local sensor and interval-quantized messages from neighboring sensors successively, an extended state based distributed Kalman filter (DKF) is proposed for simultaneously estimating both system state and uncertain dynamics. To alleviate the effect of observation biases, an event-triggered update based DKF is presented with a tighter mean square error (MSE) bound than that of the time-driven one by designing a proper threshold. Both the two DKFs are shown to provide the upper bounds of MSE online for each sensor. Under mild conditions on systems and networks, the MSE boundedness and asymptotic unbiasedness for the proposed two DKFs are proved. Finally, numerical simulations demonstrate the effectiveness of the developed filters.

First-principles study of stability, electronic and optical properties of two-dimensional Nb&lt;sub&gt;2&lt;/sub&gt;SiTe&lt;sub&gt;4&lt;/sub&gt;-based materials

Two-dimensional (2D) niobium silicon telluride (Nb&lt;sub&gt;2&lt;/sub&gt;SiTe&lt;sub&gt;4&lt;/sub&gt;) was recently proposed as a promising candidate in infrared detector, photoelectric conversion, polarized optical sensor and ferroelastic switching application due to its narrow bandgap, long-term air stability, high carrier mobility, etc. However, the in-plane strains and interfacial defects induced by the lattice misfits between functional layers are harmful to 2D heterojunction nanodevice performance, making the crystal-lattice regulation and strain engineering necessary to achieve lattice matching and strain-controllable interface. Here, using first-principles calculations and elemental substitutions, i.e., replacing cations (anions) with elements in the same group of periodic table, we identify three new and stable single-layer &lt;i&gt;A&lt;/i&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;i&gt;BX&lt;/i&gt;&lt;sub&gt;4&lt;/sub&gt; analogues (Nb&lt;sub&gt;2&lt;/sub&gt;SiSe&lt;sub&gt;4&lt;/sub&gt;, Nb&lt;sub&gt;2&lt;/sub&gt;SnTe&lt;sub&gt;4&lt;/sub&gt; and Ta&lt;sub&gt;2&lt;/sub&gt;GeTe&lt;sub&gt;4&lt;/sub&gt;) as appealing candidates in manipulating the lattice parameters of Nb&lt;sub&gt;2&lt;/sub&gt;SiTe&lt;sub&gt;4&lt;/sub&gt;. The controllable lattice parameters are 6.04 Å ≤ &lt;i&gt;a&lt;/i&gt; ≤ 6.81 Å and 7.74 Å ≤ &lt;i&gt;b&lt;/i&gt; ≤ 8.15 Å. Among them, Ta&lt;sub&gt;2&lt;/sub&gt;GeTe&lt;sub&gt;4&lt;/sub&gt; exhibits similar lattice parameters to Nb&lt;sub&gt;2&lt;/sub&gt;SiTe&lt;sub&gt;4&lt;/sub&gt; but smaller bandgap, yielding better response in far-infrared region. Strain engineering shows that the external biaxial tensile stress narrows the bandgaps of &lt;i&gt;A&lt;/i&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;i&gt;BX&lt;/i&gt;&lt;sub&gt;4&lt;/sub&gt; due to the downshifting in energy of conduction band minimum (CBM). External biaxial compressive stress induces valance band maximum (VBM) orbital inversion for Nb&lt;sub&gt;2&lt;/sub&gt;SiTe&lt;sub&gt;4&lt;/sub&gt;, Nb&lt;sub&gt;2&lt;/sub&gt;GeTe&lt;sub&gt;4&lt;/sub&gt; and Ta&lt;sub&gt;2&lt;/sub&gt;GeTe&lt;sub&gt;4&lt;/sub&gt;, which pushes up VBM and discontinues the trend of corresponding bandgap increase. In this case, the bandgap change depends on the competition between energy upshifts of both CBM and VBM. In the Nb&lt;sub&gt;2&lt;/sub&gt;SiSe&lt;sub&gt;4&lt;/sub&gt; and Nb&lt;sub&gt;2&lt;/sub&gt;SnTe&lt;sub&gt;4&lt;/sub&gt; cases, the d-p antibonding coupling in valance band is so strong that no valance band inversion appears while the bandgap increases by ~0.3 eV under −5% compressive strain. Regarding Nb&lt;sub&gt;2&lt;/sub&gt;SiTe&lt;sub&gt;4&lt;/sub&gt;, Nb&lt;sub&gt;2&lt;/sub&gt;GeTe&lt;sub&gt;4&lt;/sub&gt; and Ta&lt;sub&gt;2&lt;/sub&gt;GeTe&lt;sub&gt;4&lt;/sub&gt;, their bandgaps can hardly change under −5% compressive strain, indicating that the energy upshift in VBM equals that in CBM. Such a valance band inversion is attributed to Te outmost &lt;i&gt;p&lt;/i&gt; orbital overlapping, which introduces more dispersive VBM and smaller effective mass of hole. Our findings suggest that Nb&lt;sub&gt;2&lt;/sub&gt;SiTe&lt;sub&gt;4&lt;/sub&gt; can be alloyed with Nb&lt;sub&gt;2&lt;/sub&gt;SiSe&lt;sub&gt;4&lt;/sub&gt;, Nb&lt;sub&gt;2&lt;/sub&gt;SnTe&lt;sub&gt;4&lt;/sub&gt; and Ta&lt;sub&gt;2&lt;/sub&gt;GeTe&lt;sub&gt;4&lt;/sub&gt; to achieve controllable device lattice matching while maintaining its superior properties at the same time. The use of external biaxial compressive stress can promote the hole diffusion and improve the device performance.

Homogeneous and universal transduction of various nucleic acids to an off-shelf device based on programmable toehold switch sensing

Through a rational construction of an RNA toehold switch sensor, the glucometer-based detection of nucleic acids was innovatively simplified into a completely homogeneous and label-free process. Compared with traditional strategies that rely on multiple operations such as chemical conjugation and bead separation, this new strategy is more robust, user-friendly, reagent-saving, and reproducible, and can be universally adapted for use on extensive target species, e.g. herein, the real-world pathogen genes.

Automatic Drip Irrigation using Solar Energy

The proper usage of water is essential in irrigation because of the shortage of water. The shortage of water is due to lack of rain and continuous supply of water for irrigation as a result lot of water got wasted. It is very much essential to manage the use of water efficiently. The main objective in this project is to watering crops automatically by monitoring soil moisture for supply water based on the requirement and to maintain the water level in the overhead tank. This system suits for all climatic conditions. This project proposed on the usage of automatic irrigation system based on Arduino board, soil moisture sensor, float switch and solar panel. This automatic irrigation system senses the moisture content of the soil and automatically switches the solenoid valve and the overhead water level is monitor by float switch sensor and the power the required for the entire system is generated by using the solar panel. It will automatically control the water level in the tank also. The Global system for mobile communication (GSM) module sends the message, whenever the valve is turn ON and OFF. This project is fully automatic to support farmers, provides water as required, deploys renewable energy, minimize man power, less space, low cost and user friendly.

Pengembangan Smart Home Dengan Microcontrollers ESP32 Dan MC-38 Door Magnetic Switch Sensor Berbasis Internet of Things (IoT) Untuk Meningkatkan Deteksi Dini Keamanan Perumahan

The objective developed from this research is to utilize Smart Home with an integrated ESP32 microcontroller with a camera and MC-38 door magnetic switch sensor based on the Internet of Things (IoT) as a research base to detect the security of arumsari earth housing in Cirebon District when left by its inhabitants. ESP32 microcontroller which can be programmed via arduino IDE, then functioned to respond to the integrated camera so that it can transmit images when the MC-38 sensor door magnetic switch sensor is active. Technically the combination of the ESP32 microcontroller and MC-38 door magnetic switch sensor, which was developed as a prototype in this study is called the arumsari housing early detection system. The mechanism of the arumsari housing early detection system is when a house door or window is successfully forcibly broken without going through the system mechanism, then automatically an image or can also be developed into a video from a camera mounted on an ESP32 microcontroller will send the image through a web framework or smartphone as a form early warning of security to housing owners. The results obtained from this study are at the angle of normally open MC-38 door magnetic switch sensor of 60 - 1800, will work sending an image signal which means there is an indication of a burglar or unknown person entering the house. Whereas at the normally closed angle MC-38 door magnetic switch sensor is 00-50, it will not work sending an image signal which means the house is safe.

Development of a new high sensitivity mechanical switch for augmentative and alternative communication access in people with amyotrophic lateral sclerosis

BackgroundPeople with Amyotrophic Lateral Sclerosis (PwALS) in the advanced phase are critically affected by an almost total loss of mobility and severe communication problems. Scanning access based on the patient’s interaction with a sensor (or switch) that intercepts even a weak body movement is a valid communication aid. However, its use becomes limited with the progressive decline of residual movements. To overcome this problem, we designed a new sensor, the Lever Magnetic-spring Mechanical Switch (LeMMS), allowing repeated activation/release cycles requiring a very small activation force.MethodsThe LeMMS was applied and validated in a group of 20 PwALS in an advanced stage of disease. All subjects were regular users of communication aids employing other sensors, but which they could no longer operate their sensors (different from LeMMS). Patients were assessed at baseline (t0) and after one (t1), 6 (t2) and 12 (t3) months. Assessment at t0 included administration of standardized clinical scales, the Click-Test-30 counting the maximum number of LeMMS activations in 30 s, and thumb/fingers strength assessment with the Kendall scale. The QUEST 2.0-Dev questionnaire was administered at t1. Some use-related information and the Click-Test-30 were collected at t1, t2 and t3.ResultsAfter one training session, all patients could operate the LeMMS with minimal residual movement of one finger. At t1, they used it on average 5.45 h/day. The mean score of the QUEST 2.0-Dev was 4.63, suggesting strong satisfaction with the LeMMS. Regarding Click-Test-30 scores, no significant difference was found between t0 and t1, but performance at t2 and t3 declined significantly (p < 0.005 vs. t0). At t3, 9/20 patients were still able to use their communication aid.ConclusionsThis new switch sensor can enable PwALS to use their communication aids for a prolonged time even in the advanced phase of disease. It is easy to use, reliable and cheap, thus representing an intermediate alternative to more sophisticated and costly devices.

A Low-Cost, Multi-Sensor System to Monitor Temporary Stream Dynamics in Mountainous Headwater Catchments.

While temporary streams account for more than half of the global discharge, high spatiotemporal resolution data on the three main hydrological states (dry streambed, standing water, and flowing water) of temporary stream remains sparse. This study presents a low-cost, multi-sensor system to monitor the hydrological state of temporary streams in mountainous headwaters. The monitoring system consists of an Arduino microcontroller board combined with an SD-card data logger shield, and four sensors: an electrical resistance (ER) sensor, temperature sensor, float switch sensor, and flow sensor. The monitoring system was tested in a small mountainous headwater catchment, where it was installed on multiple locations in the stream network, during two field seasons (2016 and 2017). Time-lapse cameras were installed at all monitoring system locations to evaluate the sensor performance. The field tests showed that the monitoring system was power efficient (running for nine months on four AA batteries at a five-minute logging interval) and able to reliably log data (<1% failed data logs). Of the sensors, the ER sensor (99.9% correct state data and 90.9% correctly timed state changes) and flow sensor (99.9% correct state data and 90.5% correctly timed state changes) performed best (2017 performance results). A setup of the monitoring system with these sensors can provide long-term, high spatiotemporal resolution data on the hydrological state of temporary streams, which will help to improve our understanding of the hydrological functioning of these important systems.

Affimer-Enzyme-Inhibitor Switch Sensor for Rapid Wash-free Assays of Multimeric Proteins.

Robust technology is required to underpin rapid point-of-care and in-field diagnostics to improve timely decision making across broad sectors. An attractive strategy combines target recognition and signal generating elements into an "active" enzyme-switch that directly transduces target-binding into a signal. However, approaches that are broadly applicable to diverse targets remain elusive. Here, an enzyme-inhibitor switch sensor was developed by insertion of non-immunoglobulin Affimer binding proteins, between TEM1-β-lactamase and its inhibitor protein, such that target binding disrupts the enzyme-inhibitor complex. Design principles for a successful switch architecture are illustrated by the rapid (min), simple (wash-free), and sensitive (pM) quantification of multimeric target analytes in biological samples (serum, plasma, leaf extracts), across three application areas. A therapeutic antibody (Herceptin), protein biomarker (human C-reactive protein), and plant virus (cow pea mosaic virus) were targeted, demonstrating assays for therapeutic drug monitoring, health diagnostics, and plant pathogen detection, respectively. Batch-to-batch reproducibility, shelf-life stability, and consistency with validated enzyme-linked immunosorbent assay analysis confirm that the principle of an Affimer-enzyme-inhibitor switch provides a platform for point-of-care and in-field diagnostics.

PERANCANGAN SISTEM RUMAH PINTAR UNTUK MENINGKATKAN KEAMANAN PENGHUNI RUMAH

Home Automation System is a system that is used to integrate various systems that are generally found in a house. The implementation of Home Automation System is necessary because the development of technology over time has proven to have provided many changes in people's lives. As an example of a case that requires technological development, for example, based on data from the Central Statistics Agency (BPS) there has been a crime of theft which is the most common crime experienced by households. The percentage of households experiencing theft in each province in 2012 ranged between 54%, 63-88% and 60%, while theft cases in 2013 ranged between 66%, 58-90%, and 51%. The design model used for the Home Automation System is a test that uses house model. Sensors used in this study include Light Sensors (LDR), Gas Sensors (MQ-2), Fire Sensors, Temperature and Humidity Sensors, Ultasonic Sensors, Magnetic Reed Switch Sensors, Microwave Sensors, and Obstacle Sensors. After the application of controlling the household appliances has been designed, then a system test has been made, whether it is in accordance with what is needed or there are still deficiencies in the device that have been designed. The results obtained from this study are models in the form of Home Automation System model by utilizing a mini PC Raspberry Pi, as well Android as a controller of household appliancesKeywords: Home Automation System, Raspberry PI, Android

Touch switch sensor for cognitive body sensor networks

With the global popularity of Internet of Things (IoT) technology, increasingly numbers of digital mobile products have been developed, and they have increased the productivity of people’s daily lives. These electronic products are used in all aspects of life, such as medical care, office life, home services, and sports. However, most of these products are designed for healthy people with high literacy rates. For disabled people, these products cannot be widely used. In this paper, new, differently shaped touch sensors are proposed for body sensor network-based devices. This touch sensor can be formed into any shape because of the use of conductive fabric adhesive tape as a switch. That property is why the sensor can change positions in the body sensor network in which the human body is used as a trigger to safely activate the touch switch. The number of switch sensors can easily be increased or decreased without changing the wiring of the central controller. The number of sensors in a switch sensor system is greater than that in other touch switch systems, and the accuracy is higher.

Electrical and Photovoltaic Responses of an Au/Coumarin 337/n-Si/Sb-Au Hybrid Organic–Inorganic Solar Cell

Thin films of coumarin 337 (C-337) dye were fabricated on n-type silicon (111) wafer using a high-vacuum thermal evaporation technique. Investigation of their structure using x-ray diffraction analysis and scanning electron microscopy revealed that the pristine C-337 films had sphere-shaped nanostructure. The absorbance, transmittance, and reflectance of the C-337 films were measured spectrophotometrically. Tauc’s method revealed an indirect allowed-type optical transition for these films with an optical band gap of 1.59 eV assisted by phonons of 52 meV. Hybrid organic–inorganic heterojunction solar cells based on C-337 were deposited on n-type single-crystal silicon wafer. Many aspects of the electrical parameters of the Au/C-337/n-Si/Sb-Au heterojunction solar cells were studied under dark condition based on their capacitance–voltage, conductance–voltage, and current–voltage characteristics at different frequencies (100 kHz to 1 MHz). The Nyquist diagram of the solar cell was recorded at various frequencies. Furthermore, the illuminated current–voltage and phototransient characteristics of the cell were also measured and used to evaluate the photovoltaic performance of the device. Under illumination intensity of 90 mW/cm2, the solar cell showed good photovoltaic behavior with short-circuit current, open-circuit voltage, fill factor, and power conversion efficiency of 5.42 mA, 0.55 V, 0.59, and 4.39%, respectively. The photovoltaic and phototransient properties of the device indicate that it could be applied as both a solar cell and a linear dynamic range optoelectronic switching sensor.

Flood disaster indicator of water level monitoring system

The early warning systems for flood management have been developed rapidly with the growth of technologies. These system help to alert people early with the used of Short Message Service (SMS) via Global System for Mobile Communications (GSM). This paper presents a simple, portable and low cost of early warning system using Arduino board, which is used to control the whole system and GSM shields to send the data. System has been designed and implemented based on two components which is hardware and software. The model determines the water level using float switch sensors, then it analyzes the collected data and determine the type of danger present. The detected level is translated into an alert message and sent to the user. The GSM network is used to connect the overall system units via SMS.

Monte Carlo simulations of nanorod filler in composite polymer material

Conductive polymer (CP) is a special class of polymeric materials with conductive property which possesses high potential for the fabrication of future advanced electronic devices. To design a higher conductivity polymer, composite polymer material with conductive nanorod filler is one of alternative ideas to replace the high-cost intrinsically conductive polymeric materials. In this study, our in-house Monte-Carlo simulation was performed to generate a number of randomly-positioned nanorods within a 3D confined-space box and to assess percolation paths formed by nanorods that connected two electrodes for each configuration. The results showed that the probability of finding connection path was related to the concentrations of nanorod filler in 3D confined-space box. The increasing probability to find connection paths when adding more filler concentrations was found to be a logistic growth, in which growth rate and threshold concentration depended on soft-shell filler radius. Our finding will be beneficial for designing composite conductive polymer for switching sensor.

Molecularly imprinted electroluminescence switch sensor with a dual recognition effect for determination of ultra-trace levels of cobalt (II)

A dual selection/recognition effect is described for cobalt (II) ions (Co2+). It is based on bovine serum albumin-metal-Co2+ coordination (BSA-Co2+) and the use of a molecularly imprinted polymer (MIP). An electrochemiluminescence (ECL) switch sensor was designed for detecting nanomolar levels of Co2+. The BSA-Co2+ coordination complex was chosen as a template to prepare a MIP modified switch sensor. The coordination reaction between BSA and Co2+ provides the first step in recognition, and MIP provides the second step for Co2+. This leads to a strong improvement in selectivity of the sensor. A multi-walled carbon nanotube/Cu nanoparticles/carbon quantum dots nanocomposite (MWCNT/Cu/C-dots) acts as an ECL device, and the BSA-Co2+ complex quenches the ECL signal. Therefore, the elution and resorption of BSA-Co2+ can be used as a switch to control ECL. Additionally, a method was established to detect Co2+, with the detection limit as low as 3.07 × 10−10 mol/L. The method was applied to the analysis of spiked environmental water, soil samples, and agricultural products. The recovery rates of the method were in the range of 87.5–111.3%.

Highly selective molecular imprinting electrochemiluminescence switch sensor for biotoxin L-canavanine measurement

An electrochemiluminescence (ECL) switch sensor with a dual-recognition mechanism was developed based on complexation reactions and a molecular imprinted film (MIP). The MIP was prepared on a gold electrode with ferroferric oxide/carbon quantum dots (Fe3O4/C-dots) via electrochemical polymerization. An L-canavanine–trinitrobenzene complex was used as the template molecule and o-phenylenediamine was used as the functional monomer. Further, C-dots were used as the ECL signal elements and the L-canavanine–trinitrobenzene complex could quench the ECL signal. Subsequently, by using the elution and re-adsorption of the template molecule as the control switch, it was possible to control the ECL intensity of the sensor, and establish a new method for rapidly measuring L-canavanine. A sensor that combined complexation recognition and imprinting recognition demonstrated excellent performance in terms of recognizing specific target molecules. The detection limits of this method reached 7.32 × 10−11 mol L−1, and the measurement results for practical samples were satisfactory.