An elevator water inflow detection alarm device based on internet of things

Abstract

The utility model relates to elevator equipment technical field, concretely relates to a kind of elevator water inlet detection alarm device based on internet of things.It contains multiple water immersion sensors being arranged in elevator device and communication controller being connected with the water immersion sensor, the water immersion sensor is connected with flexible water guide rope, the flexible water guide rope is in contact with the ditch structure of the elevator device;The communication controller carries out information communication with external receiving end.This device can effectively carry out water detection to the irregular ditch structure of each part of elevator device, obtain water information at the fastest speed, improve the timeliness of alarm.

Description

Technical Field

[0001] This utility model relates to the field of elevator equipment technology, and specifically to the structural optimization design of elevator water ingress detection. Background Technology

[0002] Elevator shafts should be smooth and flat, with a level pit floor free of water seepage and accumulation. However, due to various reasons, elevators malfunction and are damaged by water every year, resulting in significant economic losses from elevator entrapment and other accidents. For example, if water supply pipes in high-rise buildings or water pipes in residents' homes are damaged or burst and leak, and this is not detected and addressed in time, the water will seep out of the rooms and flow into the elevator shaft along the landing sills. This water can soak the elevator door frames and the top of the car, causing electrical short circuits and burning out circuit boards and electronic components. In cases of large water ingress, the water can also accumulate in the pit, damaging electrical equipment located there and causing short circuits that can result in personal injury.

[0003] Typically, engineers aim to take immediate preventative measures in the early stages of a water ingress incident to avoid further economic losses and potential safety accidents. This necessitates equipping elevators with relevant water ingress detection devices. For example, Chinese patent document CN213622787U discloses an elevator car operation monitoring and early warning device. Its guide rail has a bottom water immersion sensor connected to a leakage controller, which in turn is connected to a car water immersion sensor located on the outer top of the car. This technical solution can detect water ingress into the elevator car and shaft pit to a certain extent and notify staff, providing a certain safety warning function.

[0004] However, the aforementioned elevator car operation monitoring and early warning device detects water ingress in the elevator by installing water immersion sensors at specific locations. These sensors are fixed to the elevator car and shaft pit using plates, beams, or other fixing devices. Although the water immersion sensors include electrode contact type and photoelectric non-contact type, they can only identify and respond to water ingress within a specific range near the installation location or at the installation level. In reality, the elevator car, landing doors, and shaft pit bottom all contain numerous trenches designed for wiring or installing slide rails. Due to limitations in installation location or detection structure, the aforementioned elevator car operation monitoring and early warning device cannot effectively detect water intrusion into the trenches in the first instance, thus reducing its alarm timeliness. Utility Model Content

[0005] The purpose of this invention is to provide an elevator water ingress detection and alarm device based on the Internet of Things, which can effectively detect water ingress in irregular groove structures in various parts of the elevator device, obtain water ingress information as quickly as possible, and improve the timeliness of the alarm.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An IoT-based elevator water ingress detection and alarm device includes multiple water immersion sensors installed in the elevator device and a communication controller connected to the water immersion sensors. The water immersion sensors are connected to flexible water-guiding ropes, which abut against the groove structure of the elevator device; the communication controller communicates with an external receiving end.

[0008] It is known that elevator cars, landing doors, and the bottom of the shaft pit all have a large number of trenches designed for wiring or installing slide rails. Based on the law of gravity, liquid water will first sink and flow along the above-mentioned trenches when it enters the elevator.

[0009] The elevator system includes a shaft, elevator car top, machine room, and other structures. Multiple floor screen doors (landing doors) are installed at intervals on the side walls of the shaft. Under normal conditions, the elevator car stops aligned with each landing door. The communication controller has data acquisition capabilities and can be implemented using a controller such as RS485. One communication controller connects to all water immersion sensors simultaneously. Multiple water immersion sensors are located, including but not limited to, in the machine room, elevator car top / car, landing door sills, and shaft pit bottom.

[0010] The flexible water-guiding rope possesses high plasticity and hydrophobicity, with all parts of the rope exhibiting hydrophilicity. It is deployed in the grooves and sills of elevator installations, such as cable trays and water-resistant seams on the top or inside the car, and can be secured using Velcro or waterproof adhesive. The flexible water-guiding rope is not limited to horizontal placement; it can also be suspended vertically or obliquely along the grooves and sills. This allows the flexible water-guiding rope to collect water contact data in any direction. Furthermore, by connecting a single flexible water-guiding rope to a water immersion sensor, the water ingress status of the area where the sensor is located can be detected.

[0011] The flexible water-guiding rope is connected to the water immersion sensor, which can be implemented using existing technologies such as contact electrode sensors. Its collection port is connected to one end of the flexible water-guiding rope. When the flexible water-guiding rope collects water, water molecules will be transmitted to the water immersion sensor at high speed through the flexible water-guiding rope. At this time, the water immersion sensor generates a feedback signal, which is then sent to the communication controller.

[0012] The external receiver acquires alarm information by receiving feedback signals from the communication controller. The feedback signals can reflect the location of the water ingress device in the elevator. The external receiver can be the property service center, the maintenance personnel's APP, or the user's APP.

[0013] In summary, this invention employs a water immersion sensor in conjunction with a flexible water-guiding rope to collect data on the water ingress status of the elevator system. A communication controller connected to the water immersion sensor is used for data acquisition and external communication. The flexible water-guiding rope can be embedded into the irregular grooves and ridges of various parts of the elevator system through methods such as planar placement or vertical hanging, thereby obtaining water ingress information at the fastest speed. Since the diameter and length of the flexible water-guiding rope can be easily adjusted according to the irregular grooves and ridges of various parts of the elevator system, it can perfectly adapt to different elevator systems of various specifications and models, as well as to the machine room, elevator car, landing doors, and shaft pit bottom of an elevator system. Compared to the existing technology that uses several single water immersion sensors fixed in designated locations, the technical solution provided by this invention can not only collect data on the water ingress status of the elevator car and shaft pit (planar surface), but also effectively detect structural parts such as grooves and ridges that are subject to immediate water ingress, enabling the fastest acquisition of water ingress information and improving the timeliness of alarms.

[0014] As a preferred embodiment of this invention, the diameter of the flexible water-guiding rope is smaller than the channel depth or the embankment height of the trench structure.

[0015] The flexible water-guiding rope serves to transfer water molecules to the water immersion sensor. Its diameter is smaller than the channel depth or sill height of the ditch structure, preventing damage from being stepped on or squeezed during elevator use and enhancing its positional stability. Its embedded layout further enhances the positional stability of the flexible water-guiding rope. For example, if the water-guiding rope diameter (<3 mm) is smaller than the channel depth of the ditch structure (e.g., 5 mm), it can be completely embedded in the water-guiding groove or recess of the elevator base plate, avoiding direct exposure to the external environment and reducing the risk of compression deformation caused by elevator door closing or component vibration.

[0016] As a preferred embodiment of this invention, the cross-section of the flexible water-guiding rope is an irregular cross-section, which is adapted to irregular spaces.

[0017] Because many trench structures have a mutual fit with the wall, elevator door rails and other components in terms of alignment, they will form irregular closed spaces. Setting the cross-section of the flexible water guide rope as an irregular cross-section can make the flexible water guide rope fit well into the above-mentioned irregular closed spaces, reducing the risk of compression deformation caused by elevator door closing or component vibration.

[0018] As a preferred embodiment of this invention, the flexible water-guiding rope is provided with multiple structural segments in the length direction, and the cross-sectional shapes of any two adjacent structural segments are different.

[0019] The flexible water-guiding rope has multiple structural segments along its length, allowing it to be matched with different irregular spaces.

[0020] As a preferred embodiment of this utility model, the elevator water ingress detection and alarm device includes multiple water immersion sensors; the multiple water immersion sensors are arranged in locations including the machine room, the top of the elevator car, the upper sill of the landing door, and the bottom of the shaft pit.

[0021] The communication controller is located in the machine room, which is independent of the elevator shaft. If water enters the machine room, it can damage the entire detection and alarm system. This type of elevator water ingress detection and alarm device includes multiple water immersion sensors. In this embodiment, the first water immersion sensor is located in the machine room and, in conjunction with a flexible water-guiding rope, detects water ingress at locations such as the machine room threshold and floor wiring channels. The second water immersion sensor is located on the top of the elevator car to handle water flowing downwards from higher floors. The third water immersion sensor is located on the landing door sill to detect water flowing downwards along the shaft sidewalls. The fourth water immersion sensor is located at the bottom of the shaft pit to monitor the water ingress status at the bottom of the pit.

[0022] As a preferred embodiment of this invention, a quick-release interface is provided at the connection between the flexible water-guiding rope and the water immersion sensor, and the quick-release interface is used to quickly replace the flexible water-guiding rope with a brand new one.

[0023] The quick-release interface can be any of the existing technologies, such as plug-in interface, threaded rotary interface, or steel clamp interface, all of which have the ability to be quickly installed and removed. Since the flexible water guide rope is difficult to dry quickly by relying on the evaporation effect after a signal trigger, the quick-release interface allows the staff to quickly replace and rearrange the new flexible water guide rope to avoid the water immersion sensor receiving continuous triggers and reporting false signals.

[0024] As a preferred embodiment of this invention, the flexible water-guiding rope is a modified PP / PET combined water-guiding rope.

[0025] Modified PP / PET combined water-conducting ropes, typically with irregular cross-sections, possess the ability to sense and conduct water throughout the entire rope through overall hydrophilic modification and global structural optimization. Based on the synergistic effect of the uniformity of material modification and the multi-level capillary effect of the irregular cross-section, they exhibit high dynamic response efficiency in water propagation.

[0026] As a preferred embodiment of this invention, the communication controller is a 485 controller, and the output terminals of the multiple water immersion sensors are simultaneously electrically connected to multiple signal input terminals of the 485 controller.

[0027] The 485 controller adopts the standard RS485 communication protocol and has multiple signal input terminals. Each signal input terminal is connected to the output terminal of a water immersion sensor. When the water immersion sensor obtains a water contact signal through the flexible water guide rope, it sends a feedback signal to the 485 controller. The 485 controller receives and processes the signal before communicating with the outside world to realize information interaction under the Internet of Things.

[0028] As a preferred embodiment of this invention, the elevator water ingress detection and alarm device further includes a WIFI module connected to the 485 controller and used to wirelessly transmit water ingress information.

[0029] The WIFI module can communicate wirelessly with the elevator machine room control terminal and mobile devices, thus improving the staff's ability to monitor water ingress information in real time.

[0030] As a preferred embodiment of this invention, the elevator water ingress detection and alarm device further includes an LED reminder component. The 485 controller is connected to the LED reminder component, which is installed in the machine room for local warning and reminder purposes.

[0031] The 485 controller establishes communication with the LED components through the RS485 bus and uses differential signal transmission (A / B line) for information transmission. Chips such as SM18522PH and MAX7219 can convert 485 signals into LED control signals and support multi-channel constant current output. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the elevator device layout for the elevator water ingress detection and alarm system.

[0033] Figure 2 This is a schematic diagram of the structural connection of the water ingress detection and alarm device for this elevator. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the accompanying drawings.

[0035] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0036] like Figure 1 and Figure 2 As shown, this utility model provides an elevator water ingress detection and alarm device based on the Internet of Things, which includes multiple water immersion sensors installed in the elevator device and a communication controller connected to the water immersion sensors. The water immersion sensors are connected to flexible water-guiding ropes, which abut against the groove structure of the elevator device; the communication controller communicates with an external receiving end.

[0037] It is known that elevator cars, landing doors, and the bottom of the shaft pit all have a large number of trenches designed for wiring or installing slide rails. Based on the law of gravity, liquid water will first sink and flow along the above-mentioned trenches when it enters the elevator.

[0038] The elevator system includes a shaft, elevator car top, machine room, and other structures. Multiple floor screen doors (landing doors) are installed at intervals on the side walls of the shaft. Under normal conditions, the elevator car stops aligned with each landing door. The communication controller has data acquisition capabilities and can be implemented using a controller such as RS485. One communication controller connects to all water immersion sensors simultaneously. Multiple water immersion sensors are located, including but not limited to, in the machine room, elevator car top / car, landing door sills, and shaft pit bottom.

[0039] The flexible water-guiding rope possesses high plasticity and hydrophobicity, with all parts of the rope exhibiting hydrophilicity. It is deployed in the grooves and sills of elevator installations, such as cable trays and water-resistant seams on the top or inside the car, and can be secured using Velcro or waterproof adhesive. The flexible water-guiding rope is not limited to horizontal placement; it can also be suspended vertically or obliquely along the grooves and sills. This allows the flexible water-guiding rope to collect water contact data in any direction. Furthermore, by connecting a single flexible water-guiding rope to a water immersion sensor, the water ingress status of the area where the sensor is located can be detected.

[0040] The flexible water-guiding rope is connected to the water immersion sensor, which can be implemented using existing technologies such as contact electrode sensors. Its collection port is connected to one end of the flexible water-guiding rope. When the flexible water-guiding rope collects water, water molecules will be transmitted to the water immersion sensor at high speed through the flexible water-guiding rope. At this time, the water immersion sensor generates a feedback signal, which is then sent to the communication controller.

[0041] The external receiver acquires alarm information by receiving feedback signals from the communication controller. The feedback signals can reflect the location of the water ingress device in the elevator. The external receiver can be the property service center, the maintenance personnel's APP, or the user's APP.

[0042] In another possible implementation, the diameter of the flexible water-guiding rope is smaller than the depth of the ditch or the height of the sill structure.

[0043] The function of the flexible water-guiding rope is to transfer water molecules to the water immersion sensor. Its diameter is smaller than the depth of the trench or the height of the embankment structure, which allows it to be hidden under other relative planes, avoiding damage from being stepped on or squeezed during use, and also enhancing its positional stability.

[0044] In another possible implementation, the elevator water ingress detection and alarm device includes multiple water immersion sensors; the multiple water immersion sensors are arranged in locations including the machine room, the top of the elevator car, the landing door sill, and the bottom of the shaft pit.

[0045] The communication controller is located in the machine room, which is independent of the elevator shaft. If water enters the machine room, it can damage the entire detection and alarm system. This type of elevator water ingress detection and alarm device includes multiple water immersion sensors. In this embodiment, the first water immersion sensor is located in the machine room and, in conjunction with a flexible water-guiding rope, detects water ingress at locations such as the machine room threshold and floor wiring channels. The second water immersion sensor is located on the top of the elevator car to handle water flowing downwards from higher floors. The third water immersion sensor is located on the landing door sill to detect water flowing downwards along the shaft sidewalls. The fourth water immersion sensor is located at the bottom of the shaft pit to monitor the water ingress status at the bottom of the pit.

[0046] In another possible implementation, a quick-release interface is provided at the connection between the flexible water-guiding rope and the water immersion sensor, which is used to quickly replace the flexible water-guiding rope.

[0047] The quick-release interface can be any of the existing technologies, such as plug-in interface, threaded rotary interface, or steel clamp interface, all of which have the ability to be quickly installed and removed. Since the flexible water guide rope is difficult to dry quickly by relying on the evaporation effect after a signal trigger, the quick-release interface allows the staff to quickly replace and rearrange the new flexible water guide rope to avoid the water immersion sensor receiving continuous triggers and reporting false signals.

[0048] In another possible implementation, the flexible water-guiding rope is a modified PP / PET combined water-guiding rope.

[0049] Modified PP / PET combined water-conducting ropes, typically with irregular cross-sections, possess the ability to sense and conduct water throughout the entire rope through overall hydrophilic modification and global structural optimization. Based on the synergistic effect of the uniformity of material modification and the multi-level capillary effect of the irregular cross-section, they exhibit high dynamic response efficiency in water propagation.

[0050] In another possible implementation, the communication controller is a 485 controller, and the outputs of multiple water immersion sensors are simultaneously electrically connected to multiple signal inputs of a 485 controller.

[0051] The 485 controller adopts the standard RS485 communication protocol and has multiple signal input terminals. Each signal input terminal is connected to the output terminal of a water immersion sensor. When the water immersion sensor obtains a water contact signal through the flexible water guide rope, it sends a feedback signal to the 485 controller. The 485 controller receives and processes the signal before communicating with the outside world to realize information interaction under the Internet of Things.

[0052] In another possible implementation, the elevator water ingress detection and alarm device also includes a WIFI module connected to a 485 controller for wirelessly transmitting water ingress information.

[0053] The WIFI module can communicate wirelessly with the elevator machine room control terminal and mobile devices, thus improving the staff's ability to monitor water ingress information in real time.

[0054] In another possible implementation, the elevator water ingress detection alarm device also includes an LED reminder component. The 485 controller is connected to the LED reminder component, which is installed in the machine room for local warning reminders.

[0055] The RS485 controller communicates with the LED components via an RS485 bus, using differential signal transmission (A / B lines) for information transmission. Chips such as SM18522PH and MAX7219 can convert the RS485 signal into LED control signals, supporting multi-channel constant current output. The LED reminder components can provide real-time alerts to staff through optical reminders.

[0056] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An elevator water ingress detection and alarm device based on the Internet of Things, comprising multiple water immersion sensors installed in the elevator system and a communication controller connected to the water immersion sensors, characterized in that, The water immersion sensor is connected to a flexible water-guiding rope, which abuts against the ditch structure of the elevator device; the communication controller communicates with an external receiver.

2. The elevator water ingress detection and alarm device based on the Internet of Things according to claim 1, characterized in that, The diameter of the flexible water-guiding rope is smaller than the depth of the ditch or the height of the embankment structure.

3. The elevator water ingress detection and alarm device based on the Internet of Things according to claim 1, characterized in that, The flexible water-guiding rope has an irregular cross-section, which is adapted to irregular spaces.

4. The elevator water ingress detection and alarm device based on the Internet of Things according to claim 3, characterized in that, The flexible water-guiding rope has multiple structural segments along its length, and the cross-sectional shapes of any two adjacent structural segments are different.

5. The elevator water ingress detection and alarm device based on the Internet of Things according to claim 2, characterized in that, A quick-release interface is provided at the connection between the flexible water-guiding rope and the water immersion sensor, which is used to quickly replace the flexible water-guiding rope with a brand new one.

6. The elevator water ingress detection and alarm device based on the Internet of Things according to claim 1, characterized in that, The flexible water-guiding rope is a modified PP / PET combined water-guiding rope.

7. The elevator water ingress detection and alarm device based on the Internet of Things according to claim 1, characterized in that, The communication controller is a 485 controller, and the output terminals of multiple water immersion sensors are simultaneously electrically connected to multiple signal input terminals of a 485 controller.

8. The elevator water ingress detection and alarm device based on the Internet of Things according to claim 7, characterized in that, The IoT-based elevator water ingress detection and alarm device also includes a WIFI module connected to the 485 controller and used to wirelessly transmit water ingress information.

9. The elevator water ingress detection and alarm device based on the Internet of Things according to claim 8, characterized in that, The IoT-based elevator water ingress detection and alarm device also includes an LED reminder component. The 485 controller is connected to the LED reminder component, which is installed in the machine room for local warning reminders.

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