Elevator door opening and closing fault detection device

Abstract

The invention relates to an elevator door opening and closing fault detection device, which comprises a sensor module, a data acquisition unit, a control unit and a communication module, the sensor module comprises a position sensor, a current sensor, a vibration sensor and a temperature sensor, the data acquisition unit is used for judging an elevator door fault, and the communication module is used for communicating with the control unit. If a fault occurs, fault information is uploaded and sent to the cloud platform, and meanwhile, self-adaptive energy efficiency management of an energy efficiency management strategy of the automatic adjusting system is carried out according to the operation state and the environment condition of the elevator door; the self-adaptive energy efficiency management module collects sensor data step by step, analyzes the operation state of an elevator door, adjusts an operation strategy, executes a control command, continuously optimizes an energy efficiency management strategy through feedback and learning, and finally achieves automatic adjustment according to the operation state of the elevator door and environmental conditions. And energy is saved to the maximum extent under various operation conditions, and the energy efficiency of the elevator system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator operation safety, and in particular to an elevator door opening and closing fault detection device. Background Art

[0002] At present, the existing elevator door fault detection technology mainly relies on traditional switches, photoelectric and vibration sensors. Although these sensors can detect the status of elevator doors to a certain extent, their monitoring accuracy and system stability are often affected by environmental factors (such as temperature, etc.). At the same time, the existing system is often energy-efficient when a fault occurs, and it is difficult to ensure the stability of the system during long-term operation.

[0003] Therefore, the purpose of the present invention is to provide an elevator door switch fault detection device based on a modular sensor network and adaptive energy efficiency management, which can not only monitor the fault of the elevator door in real time, but also intelligently adjust the energy efficiency to improve the stability and operation efficiency of the system. Summary of the invention

[0004] The purpose of the present invention is to provide an elevator door opening and closing fault detection device which realizes real-time monitoring of the wire rope status and early warning of hidden dangers by integrating a sensor module, a data processing module and a communication module, thereby improving the safety of elevator operation and the maintenance efficiency, and effectively solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions.

[0006] An elevator door opening and closing fault detection device, the device comprising: A sensor module is provided on the elevator door and is used to collect the state information of the elevator door in real time, wherein the sensor module includes a position sensor, a current sensor, a vibration sensor and a temperature sensor; A data acquisition unit for receiving data from each sensor module and performing preliminary processing on the data; The position sensor is used to collect the open, closed or half-open status of the elevator door in real time; The current sensor is used to collect real-time current data of the elevator door motor, which is used to determine the motor load condition and reflect the power consumption of the elevator door during operation; The vibration sensor obtains the vibration data of the elevator door, which is used to determine whether the elevator door is stuck, makes abnormal noises, or runs unsteadily; The temperature sensor is used to obtain the working environment temperature data of the elevator door. According to the temperature change, the system is evaluated whether it needs to adjust the operation strategy to avoid overheating or low-efficiency operation under low temperature; The device also includes a data acquisition unit, a control unit for analyzing data collected by the data acquisition unit, and a communication module for transmitting real-time data and fault information to a cloud platform through wireless communication for remote viewing and diagnosis by maintenance personnel; The control unit is used to determine the elevator door fault, and if a fault occurs, upload the fault information to the cloud platform, and at the same time, perform adaptive energy efficiency management of the energy efficiency management strategy of the automatic adjustment system according to the operating status and environmental conditions of the elevator door; Preferably, the sensor modules adopt a modular design, each sensor module works independently and is connected to the data acquisition unit via wireless communication.

[0007] Preferably, the operating steps of the device are as follows: A. Sensor data collection: Read the current state of the door from the position sensor, current sensor, vibration sensor and temperature sensor respectively: open, closed or half-open, the power consumption of the elevator door during operation, the vibration amplitude and frequency of the elevator door and the working environment temperature data of the elevator door; B. Perform noise filtering on the collected sensor data to remove unnecessary interference signals, and perform anomaly detection on the data according to the preset threshold; C. Operation fault status judgment: first read the current status of the elevator door; If the elevator door is in the closed state and the current is low, it is judged that the elevator door is in standby mode. If the current is too high, it is judged as abnormal and reported; If the elevator door is open and the current is high, it is judged that the elevator door is in normal operation. If the high current data is maintained for a long time, an abnormal judgment is made and reported; According to the vibration sensor data, during the opening and closing of the elevator door, if the vibration data exceeds the preset value, the elevator movement is judged to be unstable and an abnormality is reported; D. Adaptive energy efficiency management: read the current data of the current sensor in real time, judge the motor load status, and use the preset operating value as the standard. When the current is low during operation and is 20% lower than the preset operating value, it is judged that the elevator door is in an unloaded or lightly loaded state, and the energy efficiency can be optimized, and the input current is reduced; if the current is high during operation and is more than 15% higher than the preset operating value, the elevator door is in a high load state, and the motor power of the elevator door is increased to avoid overload, and the energy consumption is reduced by the opening speed of the elevator door; Read the data of the temperature sensor. If the temperature sensor detects that the temperature is too high, the motor power is reduced based on the preset high temperature value to reduce unnecessary energy consumption. If the temperature is too low, the motor power is increased based on the preset low temperature value to ensure that the elevator door can start smoothly and avoid efficiency loss caused by low temperature.

[0008] Preferably, the adaptive energy efficiency management reduces the sensor sampling frequency in the low power standby mode, and increases the sensor sampling frequency and data processing capability in the high power operation mode.

[0009] Preferably, the control unit determines the fault type of the elevator door by combining the output data of each sensor, and generates a fault warning through a preset fault classification model for reporting.

[0010] Preferably, the cloud platform is used to store the operation data of the elevator door and exchange the information with the inspection personnel, providing remote diagnosis and fault prediction functions.

[0011] Advantages of the present invention: 1. The present invention can monitor the status of elevator doors in real time, accurately diagnose fault types, optimize system energy efficiency, and improve system stability and operating efficiency. By introducing modular sensor networks, judgment algorithms, and adaptive energy efficiency management mechanisms, the system can adapt to different operating environments and achieve low energy consumption and high reliability.

[0012] 2. The adaptive energy efficiency management module of the present invention collects sensor data, analyzes the operating status of the elevator door, adjusts the operating strategy, executes control commands, and continuously optimizes the energy efficiency management strategy through feedback and learning, and finally realizes automatic adjustment according to the operating status of the elevator door and environmental conditions. Each step involves real-time analysis and decision-making of sensor data to ensure maximum energy saving and improve the energy efficiency of the elevator system under various operating conditions.

[0013] 3. Through remote monitoring and fault warning, the present invention enables inspection personnel and maintenance personnel to grasp the operating status of the elevator door in real time, predict the risk of failure in advance, and reduce the losses caused by sudden failures.

[0014] 4. Through the modular combination of multiple sensors and the application of intelligent algorithms, the system of the present invention can accurately and real-timely diagnose the type of elevator door faults, thereby improving the timeliness and accuracy of fault detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of module connection of the present invention; Figure 2 This is a flow chart of the fault detection steps of the present invention; Figure 3 This is a logic block diagram of the adaptive energy efficiency management judgment of the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-Figure 3 The present invention provides an elevator door opening and closing fault detection device, the device comprising: A sensor module is provided on the elevator door and used for collecting the state information of the elevator door in real time, wherein the sensor module includes a position sensor 1, a current sensor 2, a vibration sensor 3 and a temperature sensor 4; A data acquisition unit 5 for receiving data from each sensor module and performing preliminary processing on the data; The position sensor 1 is used to collect the open, closed or half-open state of the elevator door in real time. In this embodiment, it is installed on the elevator door; The current sensor 2 is used to collect real-time current data of the elevator door motor, to determine the motor load condition, and to reflect the power consumption of the elevator door during operation. In this embodiment, it is installed on the power supply line of the elevator door motor; The vibration sensor 3 obtains the vibration data of the elevator door, which is used to determine whether the elevator door is stuck, makes abnormal noise or runs unsteadily. In this embodiment, it is installed in the middle position of one side of the elevator door; The temperature sensor 4 is used to obtain the working environment temperature data of the elevator door. According to the temperature change, the system is evaluated whether it needs to adjust the operation strategy to avoid overheating or low-efficiency operation under low temperature. In this embodiment, it is installed on the elevator door frame; The device also includes a data acquisition unit 5, a control unit 6 for analyzing the data collected by the data acquisition unit 5, and a communication module 7 for transmitting real-time data and fault information to a cloud platform 8 through wireless communication for remote viewing and diagnosis by maintenance personnel; The control unit 6 is used to determine whether the elevator door is faulty. If a fault occurs, the fault information is uploaded to the cloud platform 8, and at the same time, the energy efficiency management strategy of the automatic adjustment system is adaptively adjusted according to the operating status and environmental conditions of the elevator door. Preferably, the sensor modules adopt a modular design, each sensor module works independently and is connected to the data acquisition unit 5 via wireless communication.

[0018] Preferably, the adaptive energy efficiency management reduces the sensor sampling frequency in the low power standby mode, and increases the sensor sampling frequency and data processing capability in the high power operation mode.

[0019] Preferably, the control unit 6 determines the fault type of the elevator door by combining the output data of each sensor, and generates a fault warning through a preset fault classification model for reporting.

[0020] Preferably, the cloud platform 8 is used to store the operation data of the elevator door and exchange the information with the inspection personnel, providing remote diagnosis and fault prediction functions.

[0021] The specific operation steps are as follows: A. Sensor data collection: Read the current state of the door from position sensor 1, current sensor 2, vibration sensor 3 and temperature sensor 4 respectively: open, closed or half-open, power consumption of the elevator door during operation, vibration amplitude and frequency of the elevator door and the working environment temperature data of the elevator door; B. Perform noise filtering on the collected sensor data to remove unnecessary interference signals, such as accidental fluctuations of the temperature sensor 4 or instantaneous abnormalities of the current sensor 2, and perform abnormality detection on the data according to the preset threshold. For example, when the current exceeds the normal range, it is judged that the motor may be overloaded; when the vibration exceeds the set threshold, it is considered that the door may be stuck; C. Operation fault status judgment: first read the current status of the elevator door; If the elevator door is in the closed state and the current is low, it is judged that the elevator door is in standby mode. If the current is too high, it is judged as abnormal and reported; If the elevator door is open and the current is high, it is judged that the elevator door is in normal operation. If the high current data is maintained for a long time, an abnormal judgment is made and reported; According to the data from the vibration sensor 3, during the opening and closing of the elevator door, if the vibration data exceeds the preset value, it is judged that the elevator movement is not stable and an abnormality is reported; D. Adaptive energy efficiency management: read the current data of current sensor 2 in real time, judge the motor load state, and take the preset operating value as the standard. When the current is lower during operation and is 20% lower than the preset operating value, it is judged that the elevator door is in an unloaded or lightly loaded state, and the energy efficiency can be optimized, and the input current is reduced; if the current is higher during operation and is more than 15% higher than the preset operating value, the elevator door is in a high load state, and the motor power of the elevator door is increased to avoid overload, and the energy consumption is reduced by the opening speed of the elevator door; Read the data of temperature sensor 4. If the temperature sensor 4 detects that the temperature is too high, the motor power is reduced based on the preset high temperature value to reduce unnecessary energy consumption. If the temperature is too low, the motor power is increased based on the preset low temperature value to ensure that the elevator door can start smoothly and avoid efficiency loss caused by low temperature.

[0022] In this embodiment, the following processing can be performed based on the read and judged data: Low load: If the elevator door is in low load or standby state, the power consumption of the motor can be reduced, the motor speed can be adjusted or it can enter standby mode.

[0023] High load: If the elevator door is in a high load state, the motor power or speed can be appropriately increased, but overload should be avoided, and energy consumption can be reduced by slowing down and adjusting the opening and closing frequency of the door.

[0024] If a large vibration amplitude is detected, the opening and closing frequency of the elevator door can be immediately reduced to avoid frequent starting, or the opening and closing smoothness of the elevator door can be adjusted.

[0025] If the elevator door gets stuck or vibrates abnormally, it will automatically enter fault protection mode, stopping or slowing down the operation of the elevator door to prevent further energy waste.

[0026] High temperature environment: If the temperature sensor 4 detects that the temperature is too high (for example, over 50°C), the motor workload is reduced to reduce unnecessary energy consumption, or the motor operating state is adjusted to avoid overheating.

[0027] Low temperature environment: If the temperature is too low (e.g. below 0°C), the motor power needs to be increased to ensure that the elevator door can start smoothly and avoid the loss of efficiency caused by low temperature.

[0028] In low load conditions, the motor power is reduced, which may include reducing the motor speed, reducing the door opening and closing frequency, etc.

[0029] At high loads, increase the motor power or optimize the door's motion trajectory, such as reducing the load during acceleration.

[0030] If the vibration is too large, the control strategy can be adjusted, such as adjusting the opening and closing time of the elevator door or slowing down the opening and closing speed, to reduce the vibration and save energy.

[0031] Adjust the power output of the motor according to temperature changes to prevent energy efficiency loss caused by overheating or overcooling.

[0032] In this embodiment, the execution effect of the system is monitored in real time, and the energy efficiency performance after each adjustment, such as current consumption, vibration level, temperature change, etc., is recorded for feedback learning.

[0033] The above is a detailed description of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the present invention are limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the present invention, and having the same performance or use, should be regarded as belonging to the patent protection scope of the present invention determined by the submitted claims.

Claims

1. An elevator door opening and closing fault detection device, characterized in that: The device comprises: A sensor module is provided on the elevator door and is used to collect the state information of the elevator door in real time, wherein the sensor module includes a position sensor, a current sensor, a vibration sensor and a temperature sensor; A data acquisition unit for receiving data from each sensor module and performing preliminary processing on the data; The position sensor is used to collect the open, closed or half-open status of the elevator door in real time; The current sensor is used to collect real-time current data of the elevator door motor, which is used to determine the motor load condition and reflect the power consumption of the elevator door during operation; The vibration sensor obtains the vibration data of the elevator door, which is used to determine whether the elevator door is stuck, makes abnormal noises, or runs unsteadily; The temperature sensor is used to obtain the working environment temperature data of the elevator door. According to the temperature change, the system is evaluated whether it needs to adjust the operation strategy to avoid overheating or low-efficiency operation under low temperature; The device also includes a data acquisition unit, a control unit for analyzing data collected by the data acquisition unit, and a communication module for transmitting real-time data and fault information to a cloud platform through wireless communication for remote viewing and diagnosis by maintenance personnel; The control unit is used to determine the elevator door fault. If a fault occurs, the fault information is uploaded to the cloud platform, and at the same time, adaptive energy efficiency management is performed to automatically adjust the energy efficiency management strategy of the system according to the operating status and environmental conditions of the elevator door.

2. The elevator door opening and closing fault detection device according to claim 1, characterized in that: The sensor modules adopt a modular design, each sensor module works independently and is connected to the data acquisition unit via wireless communication.

3. The elevator door opening and closing fault detection device according to claim 2, characterized in that: The operating steps of the device are as follows: A. Sensor data collection: Read the current state of the door from the position sensor, current sensor, vibration sensor and temperature sensor respectively: open, closed or half-open, the power consumption of the elevator door during operation, the vibration amplitude and frequency of the elevator door and the working environment temperature data of the elevator door; B. Perform noise filtering on the collected sensor data to remove unnecessary interference signals, and perform anomaly detection on the data according to the preset threshold; C. Operation fault status judgment: first read the current status of the elevator door; If the elevator door is in the closed state and the current is low, it is judged that the elevator door is in standby mode. If the current is too high, it is judged as abnormal and reported; If the elevator door is open and the current is high, it is judged that the elevator door is in normal operation. If the high current data is maintained for a long time, an abnormal judgment is made and reported; According to the vibration sensor data, during the opening and closing of the elevator door, if the vibration data exceeds the preset value, the elevator movement is judged to be unstable and an abnormality is reported; D. Adaptive energy efficiency management: read the current data of the current sensor in real time, judge the motor load status, and use the preset operating value as the standard. When the current is low during operation and is 20% lower than the preset operating value, it is judged that the elevator door is in an unloaded or lightly loaded state, and the energy efficiency can be optimized, and the input current is reduced; if the current is high during operation and is more than 15% higher than the preset operating value, the elevator door is in a high load state, and the motor power of the elevator door is increased to avoid overload, and the energy consumption is reduced by slowing down the opening speed of the elevator door; Read the data of the temperature sensor. If the temperature sensor detects that the temperature is too high, the motor power is reduced based on the preset high temperature value to reduce unnecessary energy consumption. If the temperature is too low, the motor power is increased based on the preset low temperature value to ensure that the elevator door can start smoothly and avoid efficiency loss caused by low temperature.

4. The elevator door opening and closing fault detection device according to claim 3, characterized in that: The adaptive energy efficiency management reduces the sensor sampling frequency in the low power standby mode and increases the sensor sampling frequency and data processing capability in the high power operation mode.

5. The elevator door opening and closing fault detection device according to claim 4, characterized in that: The control unit determines the fault type of the elevator door by combining the output data of each sensor, and generates a fault warning through a preset fault classification model for reporting.

6. The elevator door opening and closing fault detection device according to claim 5, characterized in that: The cloud platform is used to store the operation data of the elevator door and exchange the information with the inspection personnel, providing remote diagnosis and fault prediction functions.

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