{"id":2267,"date":"2026-07-21T09:03:03","date_gmt":"2026-07-21T01:03:03","guid":{"rendered":"https:\/\/www.huiganis.com\/?p=2267"},"modified":"2026-07-21T09:03:06","modified_gmt":"2026-07-21T01:03:06","slug":"%e7%94%b5%e6%a2%af%e4%bc%a0%e6%84%9f%e5%99%a8%ef%bc%9a%e5%8e%9f%e7%90%86%e3%80%81%e7%b1%bb%e5%9e%8b%e4%b8%8e%e5%ba%94%e7%94%a8%e5%85%a8%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.huiganis.com\/en\/%e7%94%b5%e6%a2%af%e4%bc%a0%e6%84%9f%e5%99%a8%ef%bc%9a%e5%8e%9f%e7%90%86%e3%80%81%e7%b1%bb%e5%9e%8b%e4%b8%8e%e5%ba%94%e7%94%a8%e5%85%a8%e8%a7%a3%e6%9e%90\/","title":{"rendered":"Elevator Sensors: A Comprehensive Analysis of Principles, Types, and Applications"},"content":{"rendered":"<h2 class=\"wp-block-heading\">As an indispensable vertical transportation tool in modern buildings, the safety, comfort, and operational efficiency of elevators are of paramount importance. In the intelligent evolution of elevators, sensors play the role of &quot;nerve endings&quot;\u2014they sense the elevator&#039;s...<strong>Speed, position, load, gate status, temperature, vibration<\/strong>These key parameters convert physical quantities into electrical signals, providing a basis for decision-making in the control system.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>It can be said that it is these diverse sensors, each with its own specific function, that work together to safeguard the safety and smoothness of every lift and drop.<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"749\" src=\"https:\/\/lingjuimg.com\/wp-content\/uploads\/zhonkehuigan\/2026\/07\/ChatGPT-Image-Jul-21-2026-08_54_22-AM-1024x749.png\" alt=\"\" class=\"wp-image-2268\" style=\"aspect-ratio:1.3662702043305885;width:620px;height:auto\" srcset=\"https:\/\/lingjuimg.com\/wp-content\/uploads\/zhonkehuigan\/2026\/07\/ChatGPT-Image-Jul-21-2026-08_54_22-AM-1024x749.png 1024w, https:\/\/lingjuimg.com\/wp-content\/uploads\/zhonkehuigan\/2026\/07\/ChatGPT-Image-Jul-21-2026-08_54_22-AM-300x220.png 300w, https:\/\/lingjuimg.com\/wp-content\/uploads\/zhonkehuigan\/2026\/07\/ChatGPT-Image-Jul-21-2026-08_54_22-AM-768x562.png 768w, https:\/\/lingjuimg.com\/wp-content\/uploads\/zhonkehuigan\/2026\/07\/ChatGPT-Image-Jul-21-2026-08_54_22-AM-16x12.png 16w, https:\/\/lingjuimg.com\/wp-content\/uploads\/zhonkehuigan\/2026\/07\/ChatGPT-Image-Jul-21-2026-08_54_22-AM.png 1466w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">I. Classification and Functions of Elevator Sensors<\/h3>\n\n\n\n<p>There are many types of sensors used in elevators, which can be roughly divided into the following categories according to their functions:<\/p>\n\n\n\n<p><strong>1. Speed and position sensors<\/strong><\/p>\n\n\n\n<p>This is the most critical type of sensor in the elevator control system, responsible for real-time monitoring of the elevator&#039;s operating speed and the precise position of the car in the shaft.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>encoder<\/strong>Installed on the elevator traction machine (motor) or guide rails, it is part of the elevator...<strong>High-precision position and velocity feedback<\/strong>core components<a href=\"http:\/\/c.gongkong.com\/ruiying2025\/n443764.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>Its working principle is based on photoelectric, magnetoelectric, or inductive technology, and its core components include a rotating encoder disk and a photoelectric sensor.<a href=\"http:\/\/c.gongkong.com\/ruiying2025\/n443764.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>When the motor rotates, the encoder disk rotates accordingly, and the sensor detects the encoded information and generates a pulse signal.<a href=\"http:\/\/c.gongkong.com\/ruiying2025\/n443764.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>The control system analyzes these signals to accurately calculate the elevator&#039;s position, speed, and direction of travel.<a href=\"http:\/\/c.gongkong.com\/ruiying2025\/n443764.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>The encoder serves multiple functions, including precise leveling control, smooth speed regulation, safety protection, and energy-saving operation.<a href=\"http:\/\/c.gongkong.com\/ruiying2025\/n443764.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>.<\/li>\n\n\n\n<li><strong>Leveling sensor<\/strong>Used to detect whether the elevator car has accurately reached the target floor.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>It is typically installed on the side of the car and determines the car&#039;s position by detecting signals from floor sensors inside the hoistway.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>The leveling sensor works in conjunction with the encoder to ensure that the elevator car floor is level with the floor when the elevator stops.<strong>Precise alignment<\/strong>To avoid situations where it is &quot;a little higher or a little lower&quot;.<a href=\"https:\/\/elevatorworld.com\/zh-CN\/article\/modern-lvdt-position-sensors\/\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>.<\/li>\n\n\n\n<li><strong>Position sensor<\/strong>In a broad sense, position sensors are used to detect the specific position of the car in the hoistway.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>Its implementation methods are diverse, including...<strong>Photoelectric, magnetic, and electrostatic capacitive types<\/strong>Non-contact detection sensors, and based on<strong>LVDT (Linear Variable Differential Transformer)<\/strong>\u00a0High-precision linear displacement sensor<a href=\"https:\/\/elevatorworld.com\/zh-CN\/article\/modern-lvdt-position-sensors\/\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>In addition, there are contactless...<strong>Absolute Positioning System (APS)<\/strong>It can support speeds up to 20 meters per second and distances up to 1,500 meters.<\/li>\n<\/ul>\n\n\n\n<p><strong>2. Load and Weighing Sensors<\/strong><\/p>\n\n\n\n<p>Load sensors are used to monitor the weight of passengers or goods inside an elevator car in real time, enabling...<strong>Overload protection<\/strong>key<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>How it works<\/strong>When the weight inside the car increases, the load cell experiences increased force and outputs a corresponding voltage value, which is then converted into a digital signal. Once the load exceeds the rated value (typically the overload threshold is set at 1\/3 of the rated load), the load will be immediately checked.<strong>110%<\/strong>The sensor will send a signal to prevent the elevator from starting.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/baike.baidu.com\/item\/%E7%94%B5%E6%A2%AF%E7%A7%B0%E9%87%8D%E8%A3%85%E7%BD%AE\/1920339\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>.<\/li>\n\n\n\n<li><strong>Installation<\/strong>Mainly divided into<strong>Rope end weighing<\/strong>and<strong>Car bottom weighing<\/strong>Two main categories<a href=\"https:\/\/baike.baidu.com\/item\/%E7%94%B5%E6%A2%AF%E7%A7%B0%E9%87%8D%E8%A3%85%E7%BD%AE\/1920339\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>The rope-end weighing method installs the sensor at the elevator rope end plate, transmitting the load through the steel wire rope; the car-bottom weighing method installs the sensor at the bottom of the car, based on...<strong>Magnetic induction technology<\/strong>and<strong>Eddy current sensor detects the displacement of the shock absorber pad<\/strong>Multiple implementation schemes<a href=\"https:\/\/baike.baidu.com\/item\/%E7%94%B5%E6%A2%AF%E7%A7%B0%E9%87%8D%E8%A3%85%E7%BD%AE\/1920339\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>.<\/li>\n<\/ul>\n\n\n\n<p><strong>3. Door system sensors<\/strong><\/p>\n\n\n\n<p>Door system sensors are essential for passenger safety.<strong>Entry and exit security<\/strong>The first line of defense.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Elevator light curtain<\/strong>This is currently the most mainstream elevator door safety protection device.<a href=\"https:\/\/baike.baidu.com\/item\/%E7%94%B5%E6%A2%AF%E5%85%89%E5%B9%95\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>It consists of infrared transmitters and receivers installed on both sides of the car door.<a href=\"https:\/\/baike.baidu.com\/item\/%E7%94%B5%E6%A2%AF%E5%85%89%E5%B9%95\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>Under the control of the MCU, the emitting diodes continuously scan from top to bottom, forming a dense infrared protective light curtain.<a href=\"https:\/\/baike.baidu.com\/item\/%E7%94%B5%E6%A2%AF%E5%85%89%E5%B9%95\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>When any beam of light is blocked by a person or object, the light curtain will immediately output a signal, causing the door to...<strong>Stop shutting down or restarting<\/strong><a href=\"https:\/\/baike.baidu.com\/item\/%E7%94%B5%E6%A2%AF%E5%85%89%E5%B9%95\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>The sensing area of the light curtain typically covers a range of 25mm to 1.6m above the sill.<a href=\"https:\/\/baike.baidu.com\/item\/%E7%94%B5%E6%A2%AF%E5%85%89%E5%B9%95\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>It must meet the IP65 protection rating.<a href=\"https:\/\/baike.baidu.com\/item\/%E7%94%B5%E6%A2%AF%E5%85%89%E5%B9%95\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>.<\/li>\n\n\n\n<li><strong>Door opening\/closing sensor<\/strong>Used to detect the opening and closing status of elevator doors.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>The sensor will only send a signal to allow the elevator to start when the doors are fully closed; if the doors are not closed tightly, the elevator will not run.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>Its implementation methods include...<strong>Magnetic sensor switch<\/strong>,<strong>photoelectric switch<\/strong>wait.<\/li>\n\n\n\n<li><strong>Safety contact plate<\/strong>A mechanical door protection device that detects obstacles through physical contact. It is usually used in conjunction with a light curtain to form a dual protection of &quot;tactile + visual&quot; senses.<\/li>\n<\/ul>\n\n\n\n<p><strong>4. Safety and Condition Monitoring Sensors<\/strong><\/p>\n\n\n\n<p>These types of sensors are used to monitor the operating status of critical elevator components, providing...<strong>Preventive maintenance<\/strong>and<strong>Fault Diagnosis<\/strong>Provide data support.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Speed limit sensor<\/strong>Elevator safety system<strong>Core components<\/strong>It is responsible for monitoring the speed of the elevator car.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"http:\/\/www.senther.cn\/Article-804371.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>Once the speed exceeds the set safety limit, it will immediately trigger the safety brakes, causing the car to brake suddenly.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>.<\/li>\n\n\n\n<li><strong>Accelerometer\/Vibration Sensor<\/strong>Used to detect vibrations in elevator cars and drive systems.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>Excessive vibration is often a precursor to mechanical failure.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>.based on<strong>MEMS (Micro-Electro-Mechanical Systems) triaxial accelerometer<\/strong>The detection device can perform multi-parameter detection, including car vibration comfort analysis, speed and distance measurement, abnormal vibration frequency analysis, and tilt angle detection.<a href=\"https:\/\/wap.cnki.net\/touch\/web\/Journal\/Article\/ZDYB202401003.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>.<\/li>\n\n\n\n<li><strong>Temperature sensor<\/strong>Used to monitor the temperature of critical components such as elevator motors and frequency converters to prevent equipment damage due to overheating.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"http:\/\/www.senther.cn\/Article-804371.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>.<\/li>\n\n\n\n<li><strong>Current sensor<\/strong>Used to monitor the current of elevator drive motors, capable of sensing peak currents up to 1275A.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">II. Integrated Application and Intelligentization of Sensors<\/h3>\n\n\n\n<p>The functionality of a single sensor is limited, but when they...<strong>Integrated Applications<\/strong>This can significantly improve the overall safety performance of elevators.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>Sensor networks can monitor the elevator&#039;s operating status in real time, providing multi-dimensional data support for the control system.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>By analyzing this data, the system can<strong>predict<\/strong>Pre-emptive maintenance to address potential malfunctions.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>In emergency situations, the sensor is able to...<strong>Linkage trigger<\/strong>Safety devices automatically protect passenger safety.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>.<\/p>\n\n\n\n<p>In terms of market size, the global market size for elevator door switch sensors alone reached approximately [amount missing] in 2024.<strong>$496 million<\/strong>It is projected to grow to [amount] by 2031.<strong>$764 million<\/strong>The global elevator magnetic sensor switch market is projected to have a revenue size of approximately [missing information - likely related to revenue in 2024].<strong>5.184 billion yuan<\/strong>It is expected to be close to 2031.<strong>7.881 billion yuan<\/strong>These data fully reflect the enormous potential and strong growth momentum of the elevator sensor market.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">III. Development Trends<\/h3>\n\n\n\n<p>With the continuous advancement of technologies such as the Internet of Things and artificial intelligence, elevator sensors are developing in the following directions.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Higher precision<\/strong>The measurement accuracy of parameters such as position, velocity, and load will continue to improve to meet the needs of smarter and more precise control.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>.<\/li>\n\n\n\n<li><strong>Greater integration<\/strong>Sensors will be further integrated and modularized to reduce size and improve reliability.<\/li>\n\n\n\n<li><strong>Wider interconnection<\/strong>Sensors will be fully integrated into the Internet of Things (IoT), enabling cloud-based data aggregation and remote monitoring.<a href=\"https:\/\/baike.baidu.com\/item\/%E7%94%B5%E6%A2%AF%E7%A7%B0%E9%87%8D%E8%A3%85%E7%BD%AE\/1920339\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>.<\/li>\n\n\n\n<li><strong>Predictive maintenance adoption<\/strong>Predictive maintenance based on sensor data will become standard practice.<\/li>\n\n\n\n<li><strong>Data visualization and traceability<\/strong>As the system for tracing liability in elevator accidents improves, the data recording and tracing capabilities of sensors will become an essential function.<\/li>\n<\/ul>\n\n\n\n<p>In the future, elevator systems will become more intelligent\u2014not only will they be able to learn passenger habits and automatically adjust service strategies, but they will also be able to seamlessly connect with other smart devices to jointly build a smart building ecosystem.<a href=\"http:\/\/www.senther.cn\/Article-832690.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"http:\/\/www.senther.cn\/Article-804371.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>Sensor technology is one of the core driving forces behind this transformation.<\/p>","protected":false},"excerpt":{"rendered":"<p>Elevators, as an indispensable vertical transportation tool in modern buildings, are of paramount importance in terms of safety, comfort, and operational efficiency. In the intelligent evolution of elevators, sensors play a crucial role\u2026<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,77],"tags":[],"class_list":["post-2267","post","type-post","status-publish","format-standard","hentry","category-news","category-77"],"_links":{"self":[{"href":"https:\/\/www.huiganis.com\/en\/wp-json\/wp\/v2\/posts\/2267","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.huiganis.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.huiganis.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.huiganis.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.huiganis.com\/en\/wp-json\/wp\/v2\/comments?post=2267"}],"version-history":[{"count":1,"href":"https:\/\/www.huiganis.com\/en\/wp-json\/wp\/v2\/posts\/2267\/revisions"}],"predecessor-version":[{"id":2269,"href":"https:\/\/www.huiganis.com\/en\/wp-json\/wp\/v2\/posts\/2267\/revisions\/2269"}],"wp:attachment":[{"href":"https:\/\/www.huiganis.com\/en\/wp-json\/wp\/v2\/media?parent=2267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.huiganis.com\/en\/wp-json\/wp\/v2\/categories?post=2267"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.huiganis.com\/en\/wp-json\/wp\/v2\/tags?post=2267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}