The ET650 ECG Watch offers convenience and comprehensive health tracking. For those constantly on the move, the Bluetooth call feature is a game - changer. Whether you're cycling to work or in the middle of a workout, you can answer important calls directly from your wrist without fumbling for your phone.

When it comes to health, the ET650 shines brightly. Its electrocardiogram detection allows you to quickly assess your heart health anytime, anywhere.  Women will appreciate the menstrual tracking function, helping them plan their month with ease. The 24 - hour sleep monitoring provides in - depth insights into your sleep quality, while features like fatigue detection and sedentary reminders encourage a healthier lifestyle. In case of an emergency, the SOS function ensures immediate help is just a click away.   

Beyond health, the watch is packed with useful daily features. The step counting, calorie tracking, and various sports modes are perfect for fitness enthusiasts. Need to time a cooking recipe? The stopwatch and countdown timer have got you covered. The social sharing function makes it effortless to share your achievements on platforms like WeChat, Facebook, and Twitter. And when you want to unwind, you can even play some games right on your watch.   

The ET650 ECG Watch truly has something for everyone, making it an essential companion for modern life.

It is with great pleasure that we, CIQTEK, announce an attendance at a workshop dedicated to Aqueous Organic Redox Flow Batteries, to be held in the Campus des Cordeliers at Sorbonne University (Paris, France) on April 24-25, 2025. We will also bring the Electron Paramagnetic Resonance (EPR) Spectrometer-related materials to have friendly exchanges with scientists and researchers from all walks of life.

The workshop aims to bring together the whole community working on Aqueous Organic Redox Flow Batteries, at various research and development stages from fundamental research to prototypes.

The first edition will focus on best practices for determining performance metrics, including capacity, energy, and power, during the early development stages of new chemistries. It will also address methodologies to assess the stability of organic redox active materials, considering degradation mechanisms and projected lifetimes.

The workshop will also cover methodologies and techniques for accurately determining SOC and SOH, recommended procedures for conducting accelerated aging tests, predictive tools for assessing the long-term stability and performance of the RFB, and challenges to be addressed when scaling up AORFB technologies from laboratory-scale experiments to larger industrial applications. Looking forward to seeing you in Paris!

Meet us at the Workshop

Date: April 24 - 25, 2025

Location: Sorbonne University, Paris, France

CIQTEK participated in the prestigious Experimental NMR Conference (ENC) 2025 ENC-ISMAR Joint Conference, held from April 6 to 10 in Pacific Grove, California. The conference served as an excellent platform for CIQTEK to showcase its cutting-edge research and advancements in single-molecule magnetic resonance and its wide-ranging applications.

During the event, CIQTEK's renowned experts, including the Vice President, Chief Engineer, and Overseas Division Head, presented a keynote lecture on the groundbreaking topic of "single-molecule magnetic resonance and applications." The presentation highlighted the company's pioneering work in leveraging NMR techniques to analyze and study individual molecules, revolutionizing the understanding and utilization of molecular structures in various scientific fields.

"We are honored to have had the opportunity to share our latest research and innovations in single molecule magnetic resonance at the ENC 2025 ENC-ISMAR Joint Conference," said Eric, Vice President of CIQTEK. "By unraveling the mysteries of individual molecules, we aim to unlock new insights and applications that will shape the future of scientific exploration. We look forward to continuing our contributions to the field and collaborating with esteemed professionals in driving advancements in NMR and Electron Paramagnetic Resonance technology."

S4A UHF Card Readers: Compatibility and My Personal Experience

As someone who has been working closely with RFID technology for a significant period, I've had the opportunity to use and test a wide range of RFID readers and tags. Among them, S4A UHF card readers have stood out for their reliability, performance, and compatibility. With over 15 years in the market and little feedback on quality issues, these readers have earned a reputation for excellence.

When it comes to compatibility, S4A UHF card readers are designed to work seamlessly with a wide range of RFID tags and cards. This is a crucial aspect, as the ability to integrate with existing systems and hardware is often a top priority for businesses and organizations. In my experience, S4A readers have demonstrated impressive compatibility with various RFID tags and cards, making them a versatile solution for a wide range of applications.

One of the first things I noticed about S4A UHF card readers is their ability to work with tags of different frequencies. RFID tags are available in various frequencies, including low-frequency (LF), high-frequency (HF), and ultra-high-frequency (UHF). S4A readers are compatible with UHF tags, which are widely used in applications that require long reading distances and high-speed data transmission. This makes them ideal for environments such as warehouses, logistics centers, and large-scale events, where the ability to quickly and accurately track and manage inventory is crucial.

In addition to frequency compatibility, S4A long range uhf rfid reader are also designed to work with tags that use different protocols. RFID tags and readers communicate using specific protocols, and it's essential that the reader can understand and interpret the signals sent by the tags. S4A readers support a wide range of protocols, including ISO 18000-6B and ISO 18000-6C (EPC GEN2), making them compatible with a vast majority of RFID tags on the market.

The compatibility of S4A long range uhf rfid reader extends beyond just RFID tags. These readers also offer a range of communication interfaces that make it easy to integrate them into existing systems. Whether you need to connect the reader to a computer via USB, a network through TCP/IP, or an access control system using Wiegand or RS485, S4A long range uhf rfid reader have the necessary interfaces to meet your needs. This level of flexibility ensures that the readers can be easily integrated into various environments and systems, without the need for extensive modifications or additional hardware.

I've had the pleasure of working with S4A long range uhf rfid reader in a variety of settings, and their compatibility has always been a standout feature. For example, in a recent project where I was tasked with upgrading the RFID system in a large warehouse, I was concerned about the compatibility of the new readers with the existing tags. However, my fears were quickly alleviated when I discovered that S4A long range uhf rfid reader were fully compatible with the tags we were already using. This meant that we could upgrade the system without having to replace all the tags, saving us time and money.

Another instance where S4A long range uhf rfid reader compatibility came in handy was during a conference where we needed to track attendees using RFID badges. The badges were provided by a third-party vendor, and I was unsure if they would be compatible with our readers. However, after conducting some tests, we found that the S4A readers worked flawlessly with the badges. This ensured a smooth and seamless attendance tracking process throughout the conference.

The compatibility of S4A UHF card readers is not just a technical specification; it's a testament to the company's commitment to customer satisfaction and flexibility. By designing readers that can work with a wide range of tags and systems, S4A has made it easier for businesses and organizations to adopt RFID technology without having to worry about compatibility issues.

In conclusion, S4A UHF card readers are a highly compatible solution that can work seamlessly with a wide range of RFID tags and cards. Their ability to support different frequencies, protocols, and communication interfaces makes them a versatile and flexible choice for various applications. Based on my personal experience, I can confidently say that S4A readers are a reliable and trustworthy option for anyone looking to implement or upgrade their RFID system.

Automatic Sliding Door Operators: An In-Depth Guide

Introduction

Automatic sliding door operators have become an integral part of modern architecture, enhancing convenience, accessibility, and energy efficiency in various settings. From commercial buildings like shopping malls and airports to hospitals and even some residential complexes, these operators ensure smooth and effortless door operation. However, like any mechanical or electrical system, they can encounter problems that need to be addressed promptly.

How Automatic Sliding Door Operators Work

Automatic sliding door operators are designed with a combination of mechanical and electrical components. The main elements include a motor, which provides the power to move the door. This motor is usually controlled by a control unit that interprets signals from sensors. There are two types of sensors commonly used - infrared sensors and motion sensors. Infrared sensors detect the presence of an object by the interruption of infrared light beams, while motion sensors detect movement within their range. When the sensors detect an approaching person or object, they send a signal to the control unit, which then activates the motor to open the door. Closing of the door is also carefully controlled to prevent slamming and ensure safety.

Common Problems with Automatic Sliding Door Operators

1. Door Not Opening or Closing Properly

Possible Cause: One of the most common reasons is a malfunctioning sensor. Dust, dirt, or physical damage to the sensor can prevent it from accurately detecting objects. Another cause could be a problem with the motor. A faulty motor may not have enough power to move the door, or there could be an issue with the motor's connection to the power source.

Solution: First, carefully clean the sensors with a soft, dry cloth to remove any debris. Check for any visible signs of damage to the sensors and replace them if necessary. For motor issues, check the power connection to ensure it is secure. If the motor still doesn't work, it may need to be repaired or replaced by a professional technician.

2. Door Moving Too Slowly or Too Quickly

Possible Cause: The speed settings of the door operator may have been accidentally adjusted. There could also be an issue with the load on the door. If the door has become heavier due to additional hardware or if the tracks are dirty or obstructed, it can affect the speed.

Solution: Refer to the user manual of the door operator to check and adjust the speed settings correctly. Inspect the door tracks for any dirt, debris, or obstructions. Clean the tracks thoroughly and lubricate them if needed. If the door has additional weight, it may be necessary to adjust the motor's power settings within the allowable range or consult the manufacturer for further advice.

3. Unusual Noises During Operation

Possible Cause: Noisy operation can be caused by worn - out parts in the motor or the door's moving mechanism. The tracks may be misaligned, causing the door to rub against them unevenly.

Solution: Check the motor and its components for any signs of wear and tear. Replace any damaged parts. Inspect the door tracks for alignment. If they are misaligned, carefully adjust them to ensure the door moves smoothly. Lubricate the moving parts of the door and the motor's bearings to reduce friction.

4. Door Failing to Stop or Reverse When an Object is in the Way

Possible Cause: This is a serious safety issue and is often due to a malfunctioning safety sensor. The sensor may not be calibrated correctly or may be faulty.

Solution: Immediately stop using the door and check the safety sensor. Follow the manufacturer's instructions to recalibrate the sensor. If the problem persists, replace the safety sensor as soon as possible.

Benefits of Maintaining Automatic Sliding Door Operators

Proper maintenance of automatic sliding door operators not only ensures the safety of users but also extends the lifespan of the equipment. Regular cleaning and inspection can prevent small problems from escalating into major issues that require costly repairs. Additionally, well - maintained doors contribute to a better overall user experience, as they operate smoothly and efficiently.

Conclusion

Automatic sliding door operators play a crucial role in our daily lives, providing convenience and accessibility. By understanding how they work and being aware of common problems and their solutions, building owners and managers can ensure that these doors continue to function optimally. Regular maintenance and prompt attention to any issues that arise are key to maximizing the benefits of these advanced door operating systems.

The S4A UHF reader can potentially be integrated with your existing software or systems, but it depends on several factors:

Available interfaces: The S4A UHF reader typically offers interfaces such as RS232, RS485, Wiegand, and RJ45. If your existing software or systems support these interfaces or can be configured to communicate through them, then integration is possible. For example, if your system has an RS232 port and the software is programmed to receive data through this port, you can connect the S4A UHF reader using the RS232 interface for data transfer.

Protocol compatibility: The reader needs to be compatible with the communication protocols used by your existing systems. The S4A UHF RFID GATE READER may support protocols like ISO 18000-6B, ISO 18000-6C (EPC Gen 2). If your software or systems also support these protocols or can be configured to work with them, integration will be more straightforward. However, if there is a mismatch in the protocols, additional programming or middleware may be required to bridge the gap.

SDK and documentation availability: To facilitate integration, the manufacturer may provide a Software Development Kit (SDK) and detailed documentation. The SDK usually contains libraries, APIs, and sample code that can be used to interact with the UHF reader. If the S4A UHF RFID GATE READER comes with a comprehensive SDK and well-documented APIs, it will be easier for your developers to integrate the reader into your existing software or systems.

System architecture and compatibility: The architecture and operating environment of your existing software or systems need to be compatible with the S4A UHF reader. This includes factors such as the operating system (e.g., Windows, Linux), programming language used in your software, and the overall network architecture. If there are significant differences or incompatibilities, it may require additional effort to adapt the reader to your system.

In summary, while the S4A UHF RFID GATE READER has the potential to be integrated with your existing software or systems, a detailed assessment of the interfaces, protocols, available SDK, and system compatibility is necessary to ensure a successful integration. It is advisable to consult with the manufacturer or a technical expert for a more accurate evaluation based on your specific requirements.

Use system's compatibility troubleshooting

Compatibility issues with S4A UHF RFID GATE READER  can be a complex problem to address. However, there are several common troubleshooting methods that can be employed.

First, it's important to ensure that all software and firmware related to the S4A UHF reader are up to date. Outdated software can often lead to compatibility issues. Regularly check for updates from the manufacturer's website and install them as needed. This can address known issues and improve overall performance.

Another common approach is to check the settings and configurations of both the S4A UHF reader and the connected systems. Make sure that the communication protocols, baud rates, and other settings are correctly configured to ensure seamless communication. For example, if the reader is supposed to communicate via a specific wireless protocol, ensure that the receiving device is also configured to use the same protocol.

In some cases, compatibility issues can be caused by interference from other electronic devices. Try moving the S4A uhf integrated reader away from potential sources of interference such as other wireless devices, power sources, or metal objects. This can help reduce interference and improve the reader's performance.

If possible, test the S4A uhf integrated reader with different systems or devices to determine if the compatibility issue is specific to a particular setup. This can help isolate the problem and determine if it's a problem with the reader itself or with the surrounding environment.

Also, check for any error messages or logs generated by the system. These can provide valuable clues about the nature of the compatibility issue. For example, if there are error messages related to communication failures or incorrect data formats, this can help narrow down the problem area.

Finally, if all else fails, consider reaching out to the manufacturer's technical support team. They can provide specific guidance and troubleshooting steps based on their knowledge of the product. They may also be able to offer firmware updates or other solutions that are not publicly available.

In conclusion, troubleshooting compatibility issues with S4A uhf integrated reader requires a systematic approach. By checking for software updates, configuring settings correctly, reducing interference, testing with different systems, and seeking technical support when needed, it's possible to resolve most compatibility issues and ensure smooth operation of the S4A UHF reader.

Can You Install a S4A 90-Degree Gate Automatic Opening System Yourself?

The feasibility of installing a 90-degree automatic door opener on your hinges upon multiple factors.

1. DIY Skills and Experience

Possessing a sound knowledge of fundamental tools like drills, screwdrivers, and wrenches, along with the proficiency to adhere to technical guidelines, heightens your prospects of a successful self-installation. For instance, if you've previously accomplished tasks such as assembling furniture or installing basic home fittings like curtain rods or light fixtures, you might be well-equipped to take on the installation of a relatively uncomplicated automatic door opener. However, if you lack experience in handling tools and have minimal exposure to mechanical or electrical installations, you could encounter significant difficulties during the process.

2. The Complexity of the Door and Installation Environment

Door Type: A standard-sized interior door that isn't overly heavy and features a simple frame design is generally more amenable to installation. In contrast, a heavy-duty external door, be it a thick metal security door or a large glass door, presents greater challenges due to its weight. Installing an opener on such doors demands more precise alignment and robust support mechanisms.

Power Supply: When the door opener necessitates a wired electrical hookup and the installation site lacks convenient access to power or mandates intricate wiring through walls and ceilings, the installation complexity escalates substantially. Conversely, if it's a battery-operated door opener and you're at ease with battery installation, this particular aspect of the installation becomes less of an obstacle.

Space Constraints:Restricted space in the vicinity of the door, like in a narrow hallway or a constricted doorway, can impede proper positioning and installation of the components. This makes it more arduous to achieve a seamless installation.

3. The Specific Model of the Gate Automatic Opening System

Certain automatic door opener models are engineered with user-friendliness in mind. They come accompanied by comprehensive and easy-to-comprehend installation instructions. These models typically have fewer constituent parts and a more straightforward installation routine. On the other hand, some models are more intricate, entailing the assembly of more components and the need for highly precise adjustments. For example, a high-end variant with advanced safety features and a plethora of programmable settings is likely to have a more elaborate installation protocol.

In summary, if you possess basic DIY skills and the installation context, including the door and the door opener model, isn't overly convoluted, you might be capable of undertaking the installation independently. Nevertheless, if you have any reservations regarding your capacity to execute the installation accurately and safely, it is prudent to enlist the services of a professional installer. 

Author: Written by Ms.Anna Zhang from S4A INDUSTRIAL CO., LIMITED

Proper alignment is the cornerstone of a smoothly operating 90-degree automatic door opener. Here are a series of steps and valuable pointers to assist you in attaining this essential aspect of installation:

**1. Employ the Appropriate Tools**

- A level is an indispensable instrument. Position it on both the door and the mounting surface, which could be the door frame or an adjacent wall, to ascertain that everything is flawlessly horizontal or vertical as dictated by the installation prerequisites. For instance, when affixing the opener to the door, utilize the level to verify that it is installed in a straight line along the length of the door. This ensures that the opener is not skewed, which could lead to an uneven and potentially malfunctioning door operation.

- A measuring tape proves invaluable for accurately gauging distances. Measure from established reference points such as the hinge side of the door or the extremities of the door frame to the precise locations where the opener and actuator will be mounted. This meticulous measurement process paves the way for a symmetrical and accurately aligned installation setup.

**2. Adhere to the Manufacturer's Directives**

- Manufacturers typically furnish detailed guidelines regarding alignment. These might encompass specific details like the exact distance from the hinge at which the opener ought to be positioned or the optimal height for mounting the actuator on the frame. As an example, certain models might stipulate that the opener be installed precisely 10 inches from the top hinge of a standard-sized interior door. Deviating from these instructions could result in an improper fit and compromised functionality.

- Scrutinize the door opener components for any alignment marks or reference points. Some openers feature markings that must be aligned with corresponding marks on the door or frame during the installation process. These serve as handy visual cues to ensure accurate placement.

**3. Mounting the Opener onto the Door**

- Exercise great care when marking the positions for the opener on the door. Utilize a pencil or a marker to create distinct and accurate marks in accordance with the measurements and guidelines you have meticulously determined. It is prudent to double-check these marks prior to commencing any drilling or attachment procedures. A single millimeter of error in marking could translate into significant misalignment issues later on.

- When attaching the opener or its mounting bracket to the door, ensure that it is flush against the door surface. Any gaps or irregularities can precipitate misalignment. Tighten the screws in a uniform and gradual manner, continuously checking the alignment with a level as you progress. If you detect the opener beginning to tilt or shift during the tightening process, it is advisable to slightly loosen the screws and make the necessary readjustments. This step-by-step approach helps maintain the integrity of the alignment.

**4. Installing the Actuator and Achieving Alignment with the Opener**

- The actuator, which is customarily mounted on the door frame or an adjacent wall, must be precisely aligned with the opener on the door. Initiate the process by roughly positioning the actuator in the correct location, basing your judgment on your measurements and the manufacturer's instructions. This initial approximation serves as a starting point for further refinement.

- As you secure the actuator, employ a straightedge or a long, flat object to verify that it is in perfect alignment with the opener. Alternatively, you can utilize a string or a laser level to establish a straight reference line between the two components. Make minute adjustments to the position of the actuator by loosening and repositioning the mounting screws until flawless alignment is attained. These adjustment techniques are crucial in fine-tuning the alignment and ensuring seamless operation.

- Some advanced door opener systems are accompanied by alignment jigs or templates. These accessories can be of immeasurable assistance in guaranteeing that the actuator and opener are correctly aligned. Simply follow the comprehensive instructions provided with these tools to streamline the alignment process and minimize the margin of error.

**5. Testing and Fine-Tuning**

- Before finalizing the installation by fully tightening all the screws, conduct a preliminary test of the door opener. Activate the opener to observe how the door moves and to identify any telltale signs of misalignment, such as the door binding, scraping against the frame, or failing to open to the full 90-degree angle. This initial test allows you to catch and rectify any alignment issues promptly.

- If any misalignment problems surface during the test, undertake the requisite adjustments. This could involve loosening and repositioning the opener or actuator, or meticulously inspecting for any obstructions that might be interfering with the alignment. Once you are completely satisfied with the alignment and the seamless operation of the door, you can then securely tighten all the screws and conclude the installation process. This final step seals the deal and ensures that your 90-degree automatic door opener is installed correctly and will function optimally.

Let's say we are now referring to a specific model like the "Smart 90-Degree Automatic Door Swing Gate Opener":

**1. Employ the Appropriate Tools**

- A level is an indispensable instrument. Position it on both the door and the mounting surface, which could be the door frame or an adjacent wall, to ascertain that everything is flawlessly horizontal or vertical as dictated by the installation prerequisites of the Automatic Door Swing Gate Opener. For instance, when affixing the opener to the door, utilize the level to verify that it is installed in a straight line along the length of the door. This ensures that the opener is not skewed, which could lead to an uneven and potentially malfunctioning door operation.

- A measuring tape proves invaluable for accurately gauging distances. Measure from established reference points such as the hinge side of the door or the extremities of the door frame to the precise locations where the opener and actuator of the Automatic Door Swing Gate Opener will be mounted. This meticulous measurement process paves the way for a symmetrical and accurately aligned installation setup.

**2. Adhere to the Manufacturer's Directives**

- The manufacturer of the Smart 90-Degree Automatic Door Opener typically furnishes detailed guidelines regarding alignment. These might encompass specific details like the exact distance from the hinge at which the opener ought to be positioned or the optimal height for mounting the actuator on the frame. As an example, certain models of the Smart 90-Degree Automatic Door Opener might stipulate that the opener be installed precisely 10 inches from the top hinge of a standard-sized interior door. Deviating from these instructions could result in an improper fit and compromised functionality.

- Scrutinize the components of the Smart 90-Degree Automatic Door Opener for any alignment marks or reference points. Some openers feature markings that must be aligned with corresponding marks on the door or frame during the installation process. These serve as handy visual cues to ensure accurate placement.

**3. Mounting the Opener onto the Door**

- Exercise great care when marking the positions for the opener of the Smart 90-Degree Automatic Door Opener on the door. Utilize a pencil or a marker to create distinct and accurate marks in accordance with the measurements and guidelines you have meticulously determined. It is prudent to double-check these marks prior to commencing any drilling or attachment procedures. A single millimeter of error in marking could translate into significant misalignment issues later on.

- When attaching the opener or its mounting bracket to the door, ensure that it is flush against the door surface. Any gaps or irregularities can precipitate misalignment. Tighten the screws in a uniform and gradual manner, continuously checking the alignment with a level as you progress. If you detect the opener beginning to tilt or shift during the tightening process, it is advisable to slightly loosen the screws and make the necessary readjustments. This step-by-step approach helps maintain the integrity of the alignment.

**4. Installing the Actuator and Achieving Alignment with the Opener**

- The actuator of the Smart 90-Degree Automatic Door Opener, which is customarily mounted on the door frame or an adjacent wall, must be precisely aligned with the opener on the door. Initiate the process by roughly positioning the actuator in the correct location, basing your judgment on your measurements and the manufacturer's instructions. This initial approximation serves as a starting point for further refinement.

- As you secure the actuator, employ a straightedge or a long, flat object to verify that it is in perfect alignment with the opener. Alternatively, you can utilize a string or a laser level to establish a straight reference line between the two components. Make minute adjustments to the position of the actuator by loosening and repositioning the mounting screws until flawless alignment is attained. These adjustment techniques are crucial in fine-tuning the alignment and ensuring seamless operation.

- Some advanced models of the Smart 90-Degree Automatic Door Opener system are accompanied by alignment jigs or templates. These accessories can be of immeasurable assistance in guaranteeing that the actuator and opener are correctly aligned. Simply follow the comprehensive instructions provided with these tools to streamline the alignment process and minimize the margin of error.

**5. Testing and Fine-Tuning**

- Before finalizing the installation by fully tightening all the screws, conduct a preliminary test of the Smart 90-Degree Automatic Door Opener. Activate the opener to observe how the door moves and to identify any telltale signs of misalignment, such as the door binding, scraping against the frame, or failing to open to the full 90-degree angle. This initial test allows you to catch and rectify any alignment issues promptly.

- If any misalignment problems surface during the test, undertake the requisite adjustments. This could involve loosening and repositioning the opener or actuator, or meticulously inspecting for any obstructions that might be interfering with the alignment. Once you are completely satisfied with the alignment and the seamless operation of the door, you can then securely tighten all the screws and conclude the installation process. This final step seals the deal and ensures that yourAutomatic Door Opener Stopper is installed correctly and will function optimally. 

Author: Written by Ms.Anna Zhang from S4A INDUSTRIAL CO., LIMITED

Normally, the steps to generate the QR code of the K3Q TTLock access control through the TTLock APP are as follows:

1. Ensure that the device is connected normally

First, ensure that the K3Q TTLock access control is connected normally to the TTLock APP on the mobile phone, and the mobile phone network connection is normal.

2. Open the TTLock APP, Find the TTLock APP icon on the mobile phone desktop and click to open it.

3. Log in to the account: If you have not logged in before, you need to enter the correct account and password to log in to the APP; if you have logged in, you can directly enter the main interface.

4. Enter the device management interface: In the main interface of the APP, find the corresponding K3Q TTLock access control device icon or name, and click to enter the management interface of the device. The interface layout of different versions of the APP may be slightly different, but generally you can find the relevant device on the homepage or in the "Device" list.

5. Find the QR code generation function: In the device management interface, find related function buttons such as "Generate QR code", "QR code settings", and "Access control QR code". The specific name and location of this button may vary depending on the APP version.

6.Set QR code parameters: After clicking the "Generate QR code" button, an interface for setting the QR code validity period, number of uses, and other parameters may pop up. Set according to actual needs, such as setting the QR code validity period to 1 hour, the number of uses to 1 time, etc.

7.Generate QR code: After setting the parameters, click the "OK" or "Generate" button, and the APP will automatically generate the corresponding K3Q TTLock access control integrated machine to open the door QR code.

8. Use QR code to open the door: Align the generated QR code with the QR code scanning area of the K3Q TTLock access control, and the door can be opened after the access control system successfully recognizes it.

Author: Written by Ms.Anna Zhang from S4A INDUSTRIAL CO., LIMITED

Here are some ways to improve the detection accuracy of vehicle detectors:

I. Equipment Hardware

Optimize the Design and Installation of Inductive Loops

Reasonable Selection of Coil Specifications

Based on the actual situation of the parking lot and vehicle types, select an appropriate size of the inductive loop. For example, in a parking lot with frequent access of large vehicles, a larger - sized coil should be used. Generally, the long side of a rectangular coil can be set to 2 - 3 meters, and the short side to 1 - 1.5 meters to ensure that the vehicle chassis can be completely sensed.

Precise Installation of the Coil

The installation depth of the coil should be appropriate, usually buried 3 - 5 centimeters below the ground. During the installation process, ensure that the shape of the coil is regular and the number of turns is uniform. For example, during the laying process, the spacing between each turn should be kept consistent, usually 2 - 3 centimeters. This can generate a stable magnetic field and improve the detection accuracy.

Avoid placing the coil too close to other metal objects (such as steel bars, metal pipes), because these metal objects will interfere with the magnetic field generated by the coil. During installation, the coil should be at least 1 meter away from large metal objects.

Select High - Precision Sensors

Sensor Performance Evaluation

Select sensors with high sensitivity and low - noise characteristics. When purchasing a vehicle detector, check the technical parameters of the sensor. For example, the sensitivity of the sensor should be able to detect small magnetic field changes, and its resolution can reach the level of millitesla (mT), which can accurately sense the magnetic field changes caused by the metal material of the vehicle chassis.

Sensor Anti - interference Ability

Give priority to sensors with strong anti - electromagnetic interference ability. For example, use sensors with a shielding layer. The shielding layer can effectively block the interference of external electromagnetic signals, such as interference from nearby communication base stations or other electronic devices, thereby improving the detection accuracy.

II. Software Algorithms

Adopt Intelligent Detection Algorithms

Adaptive Algorithms

Use adaptive filtering algorithms to enable the vehicle detector to automatically adjust the detection parameters according to the parking lot environment and vehicle flow. For example, during periods of frequent vehicle access, the algorithm can automatically increase the detection frequency to capture vehicle information more quickly and accurately; while during periods of low vehicle flow, the frequency can be appropriately reduced to reduce the possibility of false alarms.

Machine - Learning Algorithms

Use machine - learning algorithms to learn and identify various characteristics of vehicles. For example, by collecting a large amount of magnetic field change data and vehicle speed data of vehicles entering and leaving as training samples, let the algorithm learn the characteristic patterns of different types of vehicles (such as sedans, SUVs, trucks) and different driving states (normal driving, slow parking, rapid entry and exit). In this way, in actual detection, it can more accurately determine whether a vehicle has entered or left a parking space.

Data Processing and Optimization

Signal Filtering Processing

Filter the signals collected by the sensors to remove noise interference. For example, using digital filtering techniques, such as Butterworth filters or Kalman filters, can effectively remove signal fluctuations caused by environmental noise and electromagnetic interference, making the detected vehicle signals clearer and more accurate.

At the same time, amplify and shape the signals to ensure that the signal strength is within an appropriate range for subsequent analysis and judgment. For example, amplify the weak magnetic field change signal to an appropriate voltage amplitude so that the vehicle detection system can more easily identify the presence of the vehicle.

III. System Maintenance and Calibration

Regularly Maintain the Detection Equipment

Equipment Inspection Cycle

Establish a regular inspection system. For example, conduct a visual inspection of the vehicle detector once a month to check whether the inductive loop is damaged (such as ground subsidence causing coil deformation, damage caused by vehicle rolling, etc.) and whether the sensor connection is normal. Conduct a comprehensive functional test, including detection accuracy test and signal transmission test, every quarter.

Cleaning and Maintenance

Keep the detection equipment clean, especially the area around the sensors and inductive loops. Regularly clean up debris and standing water on the ground, because these may affect the detection accuracy. For example, standing water may change the inductance characteristics of the inductive loop, leading to detection errors.

Calibration and Parameter Adjustment

Regularly Calibrate the Equipment

According to the manufacturer's recommendations, regularly calibrate the vehicle detector. For example, calibrate the sensitivity and detection threshold of the sensor every six months or a year to ensure that its performance is in the best state.

When significant changes occur in the parking lot environment (such as the construction of a large - scale electromagnetic equipment nearby, the repaving of the parking lot ground, etc.), also conduct calibration and parameter adjustment in a timely manner so that the detection system can adapt to the new environment and maintain high detection accuracy.

Author: Written by Ms.Anna Zhang from S4A INDUSTRIAL CO., LIMITED