Intelligent elevator door control system

Abstract

The invention provides an intelligent elevator door control system, which relates to the technical field of elevator control, and comprises the following modules: a microwave intelligent detection module for providing non-contact detection; the motor control module is used for adjusting the running speed of a motor according to different scenes and accurately controlling the opening and closing speed and position of an elevator door; the sensing modules are arranged on the two sides of an elevator door and an elevator floor doorway and accurately sense the passenger state and the floor position. A man-machine interaction module; the data processing module communicates with all the modules and is used for receiving and processing the data so as to divide all the passengers into a plurality of grouped data according to the relevance between the passengers and communicating according to the grouped data; the communication module is arranged in the elevator; the main power supply module is responsible for providing power supply for each module; through the arrangement of the microwave intelligent detection module and the induction module, the occurrence probability of people clamping accidents is remarkably reduced, and the safety and reliability of elevator operation are enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator control, and in particular to an intelligent elevator door control system. Background Art

[0002] The emergence of elevators has greatly facilitated people's lives and work, especially in high-rise buildings, allowing people to reach different floors quickly and conveniently, so the safety and operation efficiency of elevators are crucial. The control of elevator doors is a key link in elevator operation, which directly affects the safety and user experience of passengers.

[0003] Traditional elevator door control systems usually use simple mechanical and electrical control methods. The opening and closing of elevator doors mainly rely on timing control or button operations inside the car and outside the floor. This method cannot accurately sense the entry and exit status of passengers or objects, which can easily lead to accidents where people or objects are caught. Moreover, the speed and time of opening and closing the door are fixed and cannot be flexibly adjusted according to actual conditions, resulting in low operating efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent elevator door control system to solve the technical problems existing in the prior art.

[0005] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0006] An intelligent elevator door control system includes the following modules: a microwave intelligent detection module, which provides non-contact detection when a passenger is within a preset range of the elevator, thereby responding in advance and immediately opening the elevator door; a motor control module, which adjusts the running speed of the motor according to different scenarios, and accurately controls the opening and closing speed and position of the elevator door; when the motor is overheated, the motor operation is stopped in time and an alarm is issued; a sensing module, which is placed on both sides of the elevator door and at the elevator floor door, accurately senses the passenger status and floor position, and feeds back electrical signals to a data processing module; a human-computer interaction module, which includes floor buttons in the elevator, up and down floor buttons outside the elevator, and a display screen that displays information inside the elevator, and controls the running status of the elevator by receiving instructions from passengers; a data processing module, which communicates with each module, is used to receive and process data, so as to provide data for dividing each passenger into a number of group data according to the correlation between the passengers, and communicates based on the group data; a communication module, which is placed inside the elevator, realizes data exchange between the elevator control system and external equipment; and a main power supply module, which is responsible for providing power supply for each module.

[0007] Furthermore, the microwave intelligent detection module includes: a microwave sensor, which detects objects in the elevator door area through microwave signals, and determines the position and motion state of the object through reflected microwave signals; a signal processing module, which is used to receive the signal of the microwave sensor, amplify, filter and digitally process it; a microprocessor, which calculates through artificial intelligence according to the data fed back by the signal processing module, and makes corresponding control decisions according to a preset algorithm; a power supply module, which provides power supply for the microwave sensor, signal processing module and microprocessor.

[0008] Furthermore, the sensing module includes: a pressure sensing module, which is installed on the edge of the elevator door, converts the sensed pressure into an electrical signal, and outputs the electrical signal to the data processing module for analysis and processing; a light sensing detection module, in which the light curtain emits parallel infrared light from the transmitter to the relatively arranged receiver. When part of the light is blocked, the light pattern received by the receiver changes, and the change signal is transmitted to the data processing module for analysis and processing.

[0009] Furthermore, the data processing module includes: a data acquisition module, which collects parameters such as elevator door position, speed, acceleration, etc. through the microwave intelligent detection module and the sensing module, and sends the collected data to the data analysis and processing module; the data analysis and processing module pre-processes the data through filtering, denoising, and formatting operations, and then uses the pre-processed data to execute the control algorithm, which is based on artificial intelligence and machine learning; the filtering formula of the filtering and denoising is: The control module generates a control instruction according to the result of the data analysis and processing module, and sends the instruction to the motor control module; the control instruction includes: the pulse width modulation duty cycle of the motor control signal: The system monitoring and optimization module monitors the elevator operation in real time, and adjusts the elevator operation and issues an alarm in time according to the preset value; the preset value is: E=|V actual -V desired |.

[0010] Furthermore, the microwave sensor includes: a door switch sensor for detecting the switch status of the elevator door, a leveling sensor for detecting whether the elevator has correctly reached the target floor, an upper limit and a lower limit sensor for monitoring the elevator running position, and a human infrared sensor for detecting whether there are passengers in the elevator.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The present invention significantly reduces the probability of accidents involving people being trapped and enhances the safety and reliability of elevator operation by setting up a microwave intelligent detection module and a sensing module; and shortens the waiting time by setting up a data processing module, optimizes the switching speed according to the internal conditions of the elevator, and improves the transportation efficiency of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the principle diagram of the present invention; DETAILED DESCRIPTION

[0014] In order to make the content of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. The same parts are represented by the same figure marks. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0015] like Figure 1 As shown, this embodiment provides an intelligent elevator door control system, including the following modules:

[0016] The microwave intelligent detection module provides non-contact detection when a passenger is within the preset range of the elevator, and then responds in advance and opens the elevator door immediately, reducing the waiting time of passengers and effectively avoiding accidents of people being trapped. The microwave intelligent detection module has good anti-interference characteristics against environmental factors such as light intensity, dust and smoke, and can work stably in complex environments, thereby improving the working efficiency of the elevator.

[0017] The motor control module adjusts the motor's operating speed according to different scenarios and working conditions, and accurately controls the elevator door opening and closing speed and position; the different scenarios and working conditions include: passenger flow, elevator load and operating mode; when the motor overheats, the motor is stopped in time and an alarm is sounded to protect the safety of the motor and the entire elevator door system;

[0018] The sensing module is placed on both sides of the elevator door and at the elevator floor door to accurately sense the passenger status and floor location. When it senses that a passenger is approaching the elevator, it triggers the elevator door to open automatically to prevent the elevator door from pinching people and provide convenient services for passengers, reducing the waiting time of passengers, and then feeds back the electrical signal to the data processing module;

[0019] The human-computer interaction module includes floor buttons inside the elevator, up and down floor buttons outside the elevator, and a display screen that displays information inside the elevator. It controls the operation status of the elevator by receiving instructions from passengers;

[0020] A data processing module, communicating with each module, for receiving and processing data, so as to provide a method for dividing each passenger into a plurality of group data according to the association between the passengers, and for communicating according to the group data;

[0021] The communication module is placed inside the elevator to enable data exchange between the elevator control system and external devices;

[0022] The main power supply module is responsible for providing power supply to each module.

[0023] Furthermore, the microwave intelligent detection module includes:

[0024] Microwave sensor detects objects in the elevator door area through microwave signals, and determines the position and motion state of the objects through reflected microwave signals. The microwave frequency range is 300MHz-300GHz, and its wavelength is 1mm-1m. The microwave sensor has higher detection accuracy and anti-interference ability, can work stably under different environmental conditions, and reduce false alarms and missed alarms.

[0025] A signal processing module, used to receive the signal of the microwave sensor, amplify, filter and digitize it so that the microprocessor can analyze it;

[0026] The microprocessor performs calculations through artificial intelligence based on the data fed back by the signal processing module and makes corresponding control decisions based on a preset algorithm; the preset algorithm is:

[0027] Among them, u(t) is the control output, e(t) is the deviation between the set speed and the actual speed, K p is the proportionality coefficient, K i is the integration coefficient, K d is the differential coefficient;

[0028] The power module provides power supply for the microwave sensor, the signal processing module and the microprocessor.

[0029] Furthermore, the sensing module includes:

[0030] The pressure sensing module is installed at the edge of the elevator door to ensure that the elevator runs under a safe load. When the elevator door is subjected to excessive pressure or overload, the system converts the pressure felt into an electrical signal and outputs the electrical signal to the data processing module for analysis and processing;

[0031] The light sensing detection module, the light curtain emits parallel infrared light from the transmitter to the relatively arranged receiver. When part of the light is blocked, the light pattern received by the receiver changes, and the change signal is transmitted to the data processing module for analysis and processing.

[0032] Furthermore, the data processing module includes:

[0033] The data acquisition module collects parameters such as elevator door position, speed, acceleration, etc. through the microwave intelligent detection module and the sensing module, and sends the collected data to the data analysis and processing module;

[0034] The data analysis and processing module pre-processes the data through filtering, denoising and formatting operations, and then uses the pre-processed data to execute the control algorithm, which is based on artificial intelligence and machine learning; the filtering formula for filtering and denoising is: Where N is the number of points in the filter window, and n is the window radius;

[0035] The control module generates a control instruction according to the result of the data analysis and processing module, and sends the instruction to the motor control module; the control instruction includes: the pulse width modulation duty cycle of the motor control signal: Where V desired is the desired speed, V max is the maximum speed of the motor; the command is input into the control module, the control module transmits the data to the motor control module, and the motor control module controls the movement of the elevator door;

[0036] The system monitoring and optimization module monitors the elevator operation in real time, and adjusts the elevator operation and issues an alarm in time according to the preset value; the preset value is: E=|V actual -V desired |.

[0037] Furthermore, the microwave sensor includes: a door opening and closing sensor for detecting the opening and closing status of the elevator door, a leveling sensor for detecting whether the elevator has correctly reached the target floor, an upper limit and a lower limit sensor for monitoring the elevator running position, and a human infrared sensor for detecting whether there are passengers in the elevator; when working, by real-time monitoring of the above sensors, potential safety hazards can be discovered in time, and corresponding maintenance measures can be taken in time to improve the operating efficiency of the elevator and the safety of passengers.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent elevator door control system, characterized in that: Includes the following modules: Microwave intelligent detection module, which provides non-contact detection when passengers are within the preset range of the elevator, and then responds in advance and opens the elevator door immediately; The motor control module adjusts the motor's operating speed according to different scenarios and accurately controls the speed and position of the elevator door opening and closing. When the motor overheats, it stops the motor in time and issues an alarm. The sensing module is placed on both sides of the elevator door and at the elevator floor door to accurately sense the passenger status and floor location, and feed back the electrical signal to the data processing module; The human-computer interaction module includes floor buttons inside the elevator, up and down floor buttons outside the elevator, and a display screen that displays information inside the elevator. It controls the operation status of the elevator by receiving instructions from passengers; A data processing module communicates with each module, and is used to receive and process data to provide data for dividing each passenger into a number of group data according to the association between the passengers, and to communicate based on the group data; The communication module is placed inside the elevator to enable data exchange between the elevator control system and external devices; The main power supply module is responsible for providing power supply to each module.

2. The intelligent elevator door control system according to claim 1, characterized in that: The microwave intelligent detection module comprises: Microwave sensors detect objects in the elevator door area through microwave signals and determine the object's position and motion state through reflected microwave signals; A signal processing module, used for receiving the signal of the microwave sensor, amplifying, filtering and digitizing the signal; A microprocessor, which performs calculations through artificial intelligence based on the data fed back by the signal processing module, and makes corresponding control decisions based on a preset algorithm; The power module provides power supply for the microwave sensor, the signal processing module and the microprocessor.

3. The intelligent elevator door control system according to claim 1, characterized in that: The sensing module comprises: A pressure sensing module is installed at the edge of the elevator door, converts the sensed pressure into an electrical signal, and outputs the electrical signal to the data processing module for analysis and processing; The light sensing detection module, the light curtain emits parallel infrared light from the transmitter to the relatively arranged receiver. When part of the light is blocked, the light pattern received by the receiver changes, and the change signal is transmitted to the data processing module for analysis and processing.

4. The intelligent elevator door control system according to claim 1, characterized in that: The data processing module comprises: The data acquisition module collects parameters such as elevator door position, speed, acceleration, etc. through the microwave intelligent detection module and the sensing module, and sends the collected data to the data analysis and processing module; The data analysis and processing module pre-processes the data through filtering, denoising and formatting operations, and then uses the pre-processed data to execute the control algorithm, which is based on artificial intelligence and machine learning; the filtering formula for filtering and denoising is: The control module generates a control instruction according to the result of the data analysis and processing module, and sends the instruction to the motor control module; the control instruction includes: the pulse width modulation duty cycle of the motor control signal: The system monitoring and optimization module monitors the elevator operation in real time, and adjusts the elevator operation and issues an alarm in time according to the preset value; the preset value is: E= | V actual -V desired| .

5. The intelligent elevator door control system according to claim 2, characterized in that: The microwave sensor includes: a door opening and closing sensor for detecting the opening and closing status of the elevator door, a leveling sensor for detecting whether the elevator has correctly reached the target floor, an upper limit and a lower limit sensor for monitoring the elevator running position, and a human infrared sensor for detecting whether there are passengers in the elevator.

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