Remote monitoring device for running state of elevator

Abstract

The utility model belongs to the technical field of elevator monitoring, and particularly relates to an elevator running state remote monitoring device which comprises an elevator car, a first image collecting device and an alarm device, the first image collecting device is arranged on the inner top wall of the elevator car, and the alarm device is arranged on the inner side wall of an elevator. The system further comprises an elevator speed detection module, a second image acquisition module, a wireless transmission module and a remote control center, the elevator speed detection module and the second image acquisition module are both connected with the wireless transmission module, the wireless transmission module is connected with the remote control center, and the elevator speed detection module comprises a sensor module and a signal amplification module. The sensor module is connected with the signal amplification module; and the second image acquisition module is an infrared image acquisition module, is arranged on the outer side wall of the elevator car and is used for acquiring image data in the elevator shaft. According to the technical scheme, the real-time speed of the elevator, the environment data in the elevator shaft and the like are remotely monitored, corresponding control is achieved, and the safety performance of the elevator is further improved.

Description

Technical Field

[0001] This utility model belongs to the field of elevator monitoring technology, and in particular relates to a remote monitoring device for the operating status of an elevator. Background Technology

[0002] With the development of the national economy, elevator coverage is expanding, and many older residential communities are undergoing renovations and elevator additions. Statistics show that there are currently approximately 400,000 elevators in use in my country, and this number is increasing by about 50,000 units annually. Furthermore, with advancements in elevator technology, elevators are becoming increasingly functional and safer. Despite these improvements and technological advancements, elevator accidents have remained frequent in recent years, including sudden and abnormal speed drops. One reason for these accidents is improper installation of the elevator traction system during installation. Another reason is environmental factors such as dampness inside the elevator shaft causing malfunctions in elevator components. Other contributing factors include improper use of keys, violent acts, batteries entering the elevator, and aging or poor maintenance of the elevator.

[0003] However, even after regulations prohibited batteries from being used in elevators, elevator stalling remains the most common cause of elevator accidents. Furthermore, given the widespread use of elevators in almost every residential community, it is impossible to manually monitor their safety in real time, necessitating remote monitoring.

[0004] Currently, remote elevator monitoring almost always relies on real-time image data acquisition. This method only monitors the elevator's internal operations, such as issuing voice warnings or flashing alarms when a battery enters the elevator. However, it cannot detect situations where the elevator stalls.

[0005] Therefore, how to remotely monitor and control the real-time speed of elevators and the environmental data inside the elevator shaft, and further improve the safety performance of elevators, is a technical problem that urgently needs to be solved. Utility Model Content

[0006] The purpose of this invention is to provide a remote monitoring device for the operation status of an elevator, which can remotely monitor real-time data such as the elevator's speed and implement corresponding control, thereby further improving the elevator's safety performance.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A remote monitoring device for the operation status of an elevator includes an elevator car, a first image acquisition device, and an alarm device. The first image acquisition device is installed on the top wall inside the elevator car, and the alarm device is installed on the inner side wall of the elevator. The device also includes an elevator speed detection module, a second image acquisition module, a wireless transmission module, and a remote control center. The elevator speed detection module and the second image acquisition module are both connected to the wireless transmission module, and the wireless transmission module is connected to the remote control center.

[0009] The elevator speed detection module includes a sensor module and a signal amplification circuit, and the sensor module is connected to the signal amplification circuit.

[0010] The second image acquisition module is an infrared image acquisition module, which is installed on the outer wall of the elevator car to acquire image data inside the elevator shaft.

[0011] Preferably, the sensor module includes a sensor circuit, which includes a magnet, a Hall sensor, a diode, a disconnect switch, a first resistor, and a counter. The S pole of the magnet is connected to the Hall sensor. One port of the Hall sensor is grounded, one port is connected to the voltage input terminal and the first resistor, and the other port is connected to the negative terminal of the diode. The input port and output port of the disconnect switch are respectively connected to the two ports of the counter.

[0012] Preferably, the signal amplification circuit includes a signal input terminal, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a first operational amplifier, a second operational amplifier, a third operational amplifier, and a signal output terminal;

[0013] The signal input terminal is connected to the second resistor and the fourth resistor respectively. The other end of the second resistor is connected to the third resistor and the non-inverting input terminal of the first operational amplifier respectively. The other end of the third resistor is grounded. The inverting input terminal of the first operational amplifier is connected to the fifth resistor and the sixth resistor respectively. The sixth resistor is connected to the fifth resistor and the non-inverting input terminal of the second operational amplifier respectively. The output terminal of the first operational amplifier is connected to the eighth resistor and the sixth resistor respectively. The other end of the eighth resistor is connected to the ninth resistor and the non-inverting input terminal of the third operational amplifier respectively. The ninth resistor is connected to the signal output terminal.

[0014] One end of the seventh resistor is connected to the fifth resistor and the non-inverting input of the second operational amplifier, and the other end is connected to the output of the second operational amplifier and the tenth resistor. The other end of the tenth resistor is connected to the third operational amplifier and grounded through the eleventh resistor. The output of the third operational amplifier is connected to the signal output.

[0015] Preferably, the model of the first image acquisition device is AFSXJ-NC-C-WD-LI-FD-TJ, and the model of the second image acquisition module is T865.

[0016] Preferably, the remote control center is a DAM-0666 remote intelligent controller.

[0017] The beneficial effects of this utility model include:

[0018] 1. The elevator speed detection module uses a sensor circuit containing electronic components such as magnets and Hall sensors to accurately sense changes in the magnetic field during elevator operation. After processing by the signal amplification circuit, the elevator speed information can be accurately obtained and transmitted to the remote control center via a wireless transmission module. The remote control center can then promptly detect abnormal speed conditions such as overspeed and stall by receiving the elevator speed information, providing critical data support for elevator operation safety.

[0019] 2. The first image acquisition device on the top wall of the car can monitor the passenger situation in the car in real time, whether there is any abnormal behavior or items left behind. More importantly, it can detect whether any high-risk items, such as electric bicycles or electric lights, have entered the elevator. The second infrared image acquisition module on the outer wall of the car can collect infrared images of the elevator shaft and monitor whether there are foreign objects or loose parts in the shaft. This achieves comprehensive visual monitoring of the elevator operating environment and further improves the safety performance of the elevator.

[0020] 3. Data acquired by the elevator speed detection module and image acquisition module is quickly and stably transmitted to the remote control center (DAM-0666 remote intelligent controller) via a wireless transmission module. Management personnel can remotely monitor the elevator's operating status in real time without on-site supervision, improving management efficiency and reducing labor costs.

[0021] 4. The remote control center can quickly analyze and judge the elevator's operating status based on the received speed and image data. Once an abnormality is detected, such as abnormal speed or a dangerous situation in the shaft, the alarm device on the inner wall of the elevator can be triggered immediately to warn the people in the car; at the same time, maintenance personnel are notified to take timely measures to eliminate the fault and ensure passenger safety and normal elevator operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the sensor circuit of this utility model.

[0023] Figure 2 This is a schematic diagram of the signal amplification circuit structure of this utility model.

[0024] Figure reference numerals: H for Hall sensor, D for diode, QS for disconnect switch, R1 for first resistor, Pin for signal input, R2 for second resistor, R3 for third resistor, R4 for fourth resistor, R5 for fifth resistor, R6 for sixth resistor, R7 for seventh resistor, R8 for eighth resistor, R9 for ninth resistor, R10 for tenth resistor, R11 for eleventh resistor, P1 for first operational amplifier, P2 for second operational amplifier, P3 for third operational amplifier, and Pout for signal output. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 and Figure 2 The present invention will be further described in detail below:

[0026] See appendix Figure 1 As shown, a remote monitoring device for the operation status of an elevator includes an elevator car, a first image acquisition device, and an alarm device. The first image acquisition device is installed on the inner top wall of the elevator car, and the alarm device is installed on the inner side wall of the elevator. The device also includes an elevator speed detection module, a second image acquisition module, a wireless transmission module, and a remote control center. Both the elevator speed detection module and the second image acquisition module are connected to the wireless transmission module, which is connected to the remote control center. The elevator speed detection module includes a sensor module and a signal amplification circuit, with the sensor module connected to the signal amplification circuit. The second image acquisition module is an infrared image acquisition module installed on the outer side wall of the elevator car to acquire image data from inside the elevator shaft.

[0027] The elevator car is equipped with a first image acquisition device, model AFSXJ-NC-C-WD-LI-FD-TJ, which can cover the entire interior space of the car and clearly capture information such as passengers entering and exiting, the number of people in the car and their behavior. When the elevator car is detected on the outer wall, an infrared second image acquisition module, model T865, is installed, which can effectively collect image data inside the elevator shaft, including the condition of the guide rails and whether there are foreign objects in the shaft.

[0028] The sensor circuit of the elevator speed detection module is connected to the elevator's traction system. The magnet changes position as the car moves, and the Hall sensor H senses these changes in the magnet's magnetic field in real time and outputs a corresponding weak electrical signal. This weak signal is initially processed by diode D and then transmitted to the signal amplification circuit. The signal amplification circuit precisely amplifies and conditions the input signal to ensure a stable output signal with appropriate amplitude.

[0029] During normal elevator operation, the first image acquisition device captures real-time images of the elevator car, while the second image acquisition module acquires infrared images of the elevator shaft. The Hall effect sensor in the sensor module detects changes in the magnetic field of the magnet and outputs an electrical signal. This signal is amplified by the signal amplification circuit and then transmitted wirelessly to the remote control center along with the image acquisition data. Upon receiving the abnormal speed signal and related image information, the remote control center quickly analyzes and determines the fault. On one hand, it immediately triggers the alarm device on the inner wall of the elevator to alert passengers in the car. On the other hand, depending on the fault type, such as an overspeed fault, the remote control center can attempt to remotely control the elevator braking system to take braking measures. Simultaneously, it notifies maintenance personnel to handle the situation on-site and continuously monitors the safety of passengers in the car and the elevator fault handling progress through the image acquisition device.

[0030] Example 2

[0031] Building upon Example 1, the sensor module and signal amplification circuit are tightly integrated and work together. The amplified signal, along with image data acquired by the second image acquisition module, is transmitted to the wireless transmission module. The wireless transmission module employs advanced communication technology to stably and rapidly transmit data to the remote control center (DAM-666 remote intelligent controller) located in the office building's property management center. At the property management center, staff can use the remote control center's interface to view real-time images of each elevator car, the elevator shaft's condition, and key information such as elevator speed, gaining a comprehensive understanding of the elevators' daily operating status.

[0032] The sensor module includes a sensor circuit, which includes a magnet, a Hall sensor H, a diode D, a diode QS, a first resistor R1, and a counter. The source (S) of the magnet is connected to the Hall sensor H. One port of the Hall sensor H is grounded, another port is connected to the voltage input terminal and the first resistor R1, and the other port is connected to the cathode of the diode D. The input and output ports of the diode QS are respectively connected to the two ports of the counter.

[0033] The N and S poles of the magnet on the left generate a magnetic field. When a magnetic object (such as a rotating part with a magnetic mark) approaches or moves away from the Hall sensor HH, the magnetic field changes. The Hall element, based on the Hall effect, senses changes in magnetic field strength and converts them into an electrical signal output. The elevator traction sheave has a magnetic material on its edge; each time a tooth rotates past the Hall element, the magnetic field changes, and the Hall element outputs a corresponding electrical signal change.

[0034] The first resistor, R1, limits the current. The Hall element's output signal may have a large current; R1 prevents excessive current from damaging subsequent circuit components and ensures stable circuit operation. Status indication: The LED DD indicates the circuit's operating status. When a suitable current flows through the circuit, LED DD indicates that the circuit is in normal operating condition. Circuit on / off control: Diode QS controls the circuit's on / off state. When closed, the signal can be smoothly transmitted to subsequent circuits; when open, it cuts off the signal transmission path, facilitating maintenance or stopping the circuit.

[0035] Speed ​​Calculation: The electrical signal output by the Hall element is transmitted to the counter on the right. The counter analyzes and processes these electrical signals, and calculates the rotational speed of the rotating component based on the number of signal changes received per unit time (i.e., the number of magnetic field changes), combined with pre-set parameters (such as the number of magnetic field changes per revolution of the rotating component). For example, if it is known that the magnetic field changes 10 times per revolution of the rotating component, and the counter detects 100 magnetic field changes in 1 second, the rotational speed can be calculated to be 10 revolutions per second.

[0036] The signal amplification circuit includes a signal input terminal Pin, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a first operational amplifier, a second operational amplifier, a third operational amplifier, and a signal output terminal.

[0037] The signal input terminal Pin is connected to the second resistor R2 and the fourth resistor R4 respectively. The other end of the second resistor R2 is connected to the third resistor R3 and the non-inverting input terminal of the first operational amplifier respectively. The other end of the third resistor R3 is grounded. The inverting input terminal of the first operational amplifier is connected to the fifth resistor R5 and the sixth resistor R6 respectively. The sixth resistor R6 is connected to the fifth resistor R5 and the non-inverting input terminal of the second operational amplifier respectively. The output terminal of the first operational amplifier is connected to the eighth resistor R8 and the sixth resistor R6 respectively. The other end of the eighth resistor R8 is connected to the ninth resistor R9 and the non-inverting input terminal of the third operational amplifier respectively. The ninth resistor R9 is connected to the signal output terminal.

[0038] One end of the seventh resistor R7 is connected to the fifth resistor R5 and the non-inverting input of the second operational amplifier, and the other end is connected to the output of the second operational amplifier and the tenth resistor R10. The other end of the tenth resistor R10 is connected to the third operational amplifier and grounded through the eleventh resistor R11. The output of the third operational amplifier is connected to the signal output.

[0039] The first image acquisition device is model AFSXJ-NC-C-WD-LI-FD-TJ, and the second image acquisition device is model T865. The remote control center is a DAM-0666 remote intelligent controller.

[0040] In summary, the remote monitoring device for elevator operation status of the present invention includes an elevator car, a first image acquisition device, and an alarm device. The first image acquisition device is installed on the top wall inside the elevator car, and the alarm device is installed on the inner side wall of the elevator. It also includes an elevator speed detection module, a second image acquisition module, a wireless transmission module, and a remote control center. Both the elevator speed detection module and the second image acquisition module are connected to the wireless transmission module, which is connected to the remote control center. The elevator speed detection module includes a sensor module and a signal amplification circuit, with the sensor module connected to the signal amplification circuit. The second image acquisition module is an infrared image acquisition module, installed on the outer side wall of the elevator car, to acquire image data from inside the elevator shaft. Through the above technical solution, the real-time speed of the elevator and environmental data inside the elevator shaft can be remotely monitored and corresponding control can be achieved, further improving the safety performance of the elevator.

Claims

1. A remote monitoring device for the operating status of an elevator, comprising an elevator car, a first image acquisition device, and an alarm device, wherein the first image acquisition device is disposed on the top wall inside the elevator car, and the alarm device is disposed on the inner side wall of the elevator, characterized in that, It also includes an elevator speed detection module, a second image acquisition module, a wireless transmission module, and a remote control center. The elevator speed detection module and the second image acquisition module are both connected to the wireless transmission module, and the wireless transmission module is connected to the remote control center. The elevator speed detection module includes a sensor module and a signal amplification circuit, and the sensor module is connected to the signal amplification circuit. The second image acquisition module is an infrared image acquisition module, which is installed on the outer wall of the elevator car to acquire image data inside the elevator shaft.

2. The remote monitoring device for elevator operation status according to claim 1, characterized in that, The sensor module includes a sensor circuit, which includes a magnet, a Hall sensor, a diode, a disconnect switch, a first resistor, and a counter. The S pole of the magnet is connected to the Hall sensor. One port of the Hall sensor is grounded, another port is connected to the voltage input terminal and the first resistor, and the other port is connected to the negative terminal of the diode. The input port and output port of the disconnect switch are respectively connected to the two ports of the counter.

3. The remote monitoring device for elevator operation status according to claim 1, characterized in that, The signal amplification circuit includes a signal input terminal, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a first operational amplifier, a second operational amplifier, a third operational amplifier, and a signal output terminal; The signal input terminal is connected to the second resistor and the fourth resistor respectively. The other end of the second resistor is connected to the third resistor and the non-inverting input terminal of the first operational amplifier respectively. The other end of the third resistor is grounded. The inverting input terminal of the first operational amplifier is connected to the fifth resistor and the sixth resistor respectively. The sixth resistor is connected to the fifth resistor and the non-inverting input terminal of the second operational amplifier respectively. The output terminal of the first operational amplifier is connected to the eighth resistor and the sixth resistor respectively. The other end of the eighth resistor is connected to the ninth resistor and the non-inverting input terminal of the third operational amplifier respectively. The ninth resistor is connected to the signal output terminal. One end of the seventh resistor is connected to the fifth resistor and the non-inverting input of the second operational amplifier, and the other end is connected to the output of the second operational amplifier and the tenth resistor. The other end of the tenth resistor is connected to the third operational amplifier and grounded through the eleventh resistor. The output of the third operational amplifier is connected to the signal output.

4. The remote monitoring device for elevator operation status according to claim 1, characterized in that, The model number of the first image acquisition device is AFSXJ-NC-C-WD-LI-FD-TJ, and the model number of the second image acquisition module is T865.

5. The remote monitoring device for elevator operation status according to claim 1, characterized in that, The remote control center is a DAM-0666 remote intelligent controller.

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