Escalators are widely used in public places such as shopping malls, hotels, hospitals, airports, stations, and subway stations, and have become an indispensable component of modern architecture. As of the end of 2019, the total number of elevators (including escalator products) in use in China reached 7.09 million, with the number of escalator products accounting for about 10% to 20% of them, which is a huge quantity. Monitoring the status of escalators is also particularly important. On the one hand, once an elevator malfunctions, it can be detected in a timely manner, and by using a large amount of elevator operation data to assist in analyzing the cause of the malfunction, maintenance efficiency can be improved; On the other hand, real-time monitoring of key information is carried out during elevator operation. If certain parameters are abnormal, they can be maintained and processed in advance to avoid elevator failures, effectively improve elevator safety, and ensure passenger safety.
An escalator is a fixed electric drive equipment consisting of a special structural chain conveyor and two special structural belt conveyors, with a circulating motion ladder, used to tilt up or down and transport passengers between different floors of a building. A continuous conveying machinery used to transport personnel up and down. So it can be monitored through vibration sensors.
A vibration sensor is a device that can sense the vibration of an object and convert it into an electrical signal. In escalators, vibration sensors can play an important role.
Firstly, vibration sensors can be used to monitor the operational status of escalators. By installing vibration sensors on key parts of the escalator, such as handrails or pedals, the vibration situation of the escalator can be sensed. If the escalator is running normally, the vibration sensor will continuously sense regular vibration signals. However, if there is a malfunction or abnormal situation with the escalator, the vibration sensor will sense irregular vibration signals and issue an alarm in a timely manner, so that maintenance personnel can handle it in a timely manner.
Secondly, vibration sensors can also be used to detect the load situation of escalators. During operation, escalators carry the weight of passengers. By installing vibration sensors on the support structure of the escalator, the load situation that the escalator is subjected to can be sensed. If the escalator is overloaded, the vibration sensor will sense a large vibration signal and issue an alarm in a timely manner to avoid escalator failure or accidents.
In addition, vibration sensors can also be used to monitor the smoothness of escalator operation. Escalators should maintain a stable running state during operation to ensure the safety of passengers. By installing vibration sensors at key parts of the escalator, the vibration situation of the escalator can be sensed. If the escalator runs unevenly, the vibration sensor will sense a large vibration signal and issue an alarm in a timely manner for maintenance personnel to adjust and repair.
Automatic escalator monitoring system sensor products from Senther Technology
310AT temperature vibration integrated sensor:
Features: Temperature vibration integrated, corrosion-resistant packaging, metal welding sealing, shell isolation, EMI/RFI shielding, impact protection
Application: Wind turbine, gearbox monitoring, bearing monitoring, equipment status monitoring
IN-SDG data collector:
The IN-SDG intelligent vibration transmitter is developed based on the transformation of equipment manufacturers to operation and maintenance providers, the introduction of the concept of the entire equipment lifecycle, the concept of big data and artificial intelligence, the concept of smart factories, changes in communication methods, and the emergence of 5G applications. The IN-SDG intelligent vibration transmitter is mainly used to detect large sliding bearing equipment, such as steam turbine generators, large axial flow fans, and large air compressor units. Rolling bearing equipment with gearboxes, such as wind turbines, rolling mills, various pumps, and blowers.
After long-term monitoring of the equipment, the operating status data of the equipment in each period will be continuously accumulated. Based on these historical data, a fitting curve of the data will be obtained through fitting methods, which can reflect the trend of data changes, that is, the trend of equipment operating status changes. Usually, as the device is used for a longer period of time, its condition deteriorates due to wear and tear, and the vibration data continues to increase. Based on the trend curve, we can understand the rate of equipment degradation and predict whether it will reach or exceed the danger threshold in a certain period of time in the future. Trend prediction can predict and take appropriate maintenance measures in a timely manner before the equipment reaches damage, achieving predictive maintenance of the equipment.
In summary, the application of vibration sensors in escalators can improve their safety and reliability. By monitoring the operation status, load condition, and smoothness of the escalator, vibration sensors can promptly detect faults and abnormal situations of the escalator and provide timely alarms for maintenance personnel to handle. This can ensure the safety of passengers and extend the service life of the escalator.
