Elevator efficiency improvement and energy-saving control device

Abstract

This utility model discloses an elevator efficiency-enhancing and energy-saving control device, including a passenger count device and a logic controller. The logic controller includes an MCU microcontroller, which includes a TTL-485 communication circuit for communicating with the elevator and responding to lobby calls. The passenger count device is located inside the elevator car and includes two infrared array pixel sensors. The two infrared array pixel sensors are connected to the MCU microcontroller via an I2C interface to detect the number of passengers in the elevator car in real time and transmit the data to the MCU microcontroller. This utility model uses the space occupied by passengers in the elevator car as the basis for determining whether the elevator is full, and converts the full-load area data into passenger data. By monitoring the number of passengers in real time, it determines whether to accept a lobby call. In this way, unnecessary elevator stops and empty runs can be reduced to a certain extent, making the elevator operation more efficient and reducing energy waste.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to an elevator efficiency-enhancing and energy-saving control device. Background Technology

[0002] In modern society, elevators, as an indispensable vertical transportation tool within buildings, are widely used in various places such as office buildings, shopping malls, and residential communities. With the acceleration of urbanization and the continuous increase in building height, the number and frequency of elevator use are also increasing day by day.

[0003] However, traditional elevator operation control methods have gradually revealed numerous problems, making it difficult to meet current demands for high efficiency, energy conservation, and intelligence. Traditional elevators mostly use weight limits to reject lobby calls. When the elevator car is carrying a large number of passengers but has not reached the weight limit, it will still proceed according to the preset floor stopping order. Passengers waiting on the corresponding floors, seeing that the car has limited space, often choose not to board. This results in unnecessary stops and empty runs in many situations, causing significant energy waste. Furthermore, elevators consume a large amount of electricity during starting and braking, and the frequent starts and stops under traditional control methods further exacerbate energy consumption. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an elevator efficiency-enhancing and energy-saving control device. It uses the space occupied by passengers inside the car as the basis for determining whether the elevator is fully loaded, and converts the full-load area data into passenger data. By monitoring the number of passengers in real time, it determines whether to accept a call from the lobby. In this way, unnecessary elevator stops and empty runs can be reduced to a certain extent, making the elevator operation more efficient and reducing energy waste.

[0005] The technical solution of this utility model is as follows:

[0006] An elevator efficiency-enhancing and energy-saving control device includes a passenger count device and a logic controller. The logic controller includes an MCU microcontroller, which includes a TTL-485 communication circuit for communicating with the elevator and responding to calls from the lobby. The passenger count device is located inside the elevator car and includes two infrared array pixel sensors. The two infrared array pixel sensors are connected to the MCU microcontroller via an I2C interface for real-time detection of the number of passengers in the elevator car and transmitting the data to the MCU microcontroller.

[0007] In a further technical solution, the MCU microcontroller also includes a 12V input to 3V DC-DC power supply circuit, which is used to connect to the 12V power supply of the electronically regulated MCU microcontroller circuit board to supply power.

[0008] In a further technical solution, the MCU microcontroller also includes a filter capacitor for stabilizing the input power supply.

[0009] In a further technical solution, the MCU microcontroller also includes a chip program download interface for downloading programs to the MCU microcontroller.

[0010] In a further technical solution, the MCU microcontroller also includes a reset circuit.

[0011] The beneficial effects of this utility model are:

[0012] This invention uses the space occupied by passengers inside the elevator car as the basis for determining whether the elevator is fully loaded, and converts the full-load area data into passenger data. By monitoring the number of passengers in real time, it determines whether to accept the lobby call. In this way, unnecessary elevator stops and empty runs can be reduced to a certain extent, making the elevator operation more efficient and reducing energy waste. Attached Figure Description

[0013] Figure 1 This is a flowchart of the logic controller described in Embodiment 1 of this utility model;

[0014] Figure 2 This is the control circuit diagram of the MCU single-chip microcomputer described in Embodiment 2 of this utility model;

[0015] Figure 3 This is a circuit diagram of the TTL-485 communication circuit described in Embodiment 2 of this utility model;

[0016] Figure 4 This is a circuit diagram of the infrared array pixel sensor described in Embodiment 2 of this utility model;

[0017] Figure 5 This is a circuit diagram of the 12V input to 3V 3DCDC power supply circuit described in Embodiment 2 of this utility model;

[0018] Figure 6 This is a circuit diagram of the filter capacitor described in Embodiment 2 of this utility model;

[0019] Figure 7 This is a circuit diagram of the chip program download interface described in Embodiment 2 of this utility model;

[0020] Figure 8 This is a circuit diagram of the reset circuit described in Embodiment 2 of this utility model;

[0021] Figure 9 This is a circuit diagram of the 485 communication terminal connection interface described in Embodiment 2 of this utility model. Detailed Implementation

[0022] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0023] Example 1:

[0024] An elevator efficiency improvement and energy-saving control method includes the following steps:

[0025] Let the area of ​​the elevator car be X, and the orthographic projection area of ​​an adult standing be Y. Determine the maximum number of people the elevator car can carry, A = X / Y. The orthographic projection area of ​​an adult standing is Y, which is determined based on the orthographic projection area of ​​an adult of average height and weight in a comfortable standing posture.

[0026] Set the elevator car's controlled passenger capacity to B. The value of B is determined by rounding down from the value of A. It is manually input through the control panel of the logic controller. Specifically, the value of B is determined by 50%-70% of the value of A.

[0027] The elevator uses a people counter to monitor and count the number of passengers (C) inside the elevator car in real time, and sends this data to the logic controller. Specifically, the people counter can be an infrared people counter or a camera-based people counter. The logic controller determines if C is less than B. If so, it controls the elevator to continue operating according to the original program; otherwise, it stops accepting calls from the lobby to open the door until it reaches the selected floor. The control flow of the logic controller is as follows: Figure 1 As shown.

[0028] Example 2:

[0029] An elevator efficiency-enhancing and energy-saving control device includes a passenger count device and a logic controller. The passenger count device is installed inside the elevator car and is used to count the number of passengers in the car in real time. The logic controller is used to receive data information from the passenger count device and perform the method logic of Embodiment 1 to control the operation of the elevator.

[0030] In this embodiment, the logic controller includes an MCU microcontroller, and its control circuit diagram is shown below. Figure 2 As shown, the MCU microcontroller includes a TTL-485 communication circuit for communicating with the elevator and responding to calls from the lobby. The circuit diagram of the TTL-485 communication circuit is shown below. Figure 3 As shown; the people counter includes two infrared array pixel sensors, which are connected to the MCU microcontroller via an I2C interface. These sensors are used to detect the number of passengers inside the elevator car in real time and transmit the data to the MCU microcontroller. Its circuit diagram is shown below. Figure 4 As shown.

[0031] The MCU microcontroller also includes a 12V input to 3V 3DC-DC power supply circuit, which is used to connect to the 12V power supply of the ESC to power the MCU microcontroller circuit board. Its circuit diagram is shown below. Figure 5 As shown.

[0032] The MCU also includes a filter capacitor for stabilizing the input power supply, and its circuit diagram is shown below. Figure 6 As shown.

[0033] The MCU microcontroller also includes a chip program download interface for downloading programs to the MCU microcontroller, and its circuit diagram is shown below. Figure 7 As shown.

[0034] The MCU microcontroller also includes a reset circuit, the circuit diagram of which is shown below. Figure 8 As shown.

[0035] 3.81-3P communicates with the elevator; the circuit for the 485 communication terminal connection interface is as follows: Figure 9 As shown.

[0036] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An elevator efficiency-enhancing and energy-saving control device, characterized in that, The system includes a people counter and a logic controller. The logic controller includes an MCU (microcontroller unit) and a TTL-485 communication circuit for communicating with the elevator and responding to calls from the lobby. The people counter is located inside the elevator car and includes two infrared array pixel sensors. The two infrared array pixel sensors are connected to the MCU via an I2C interface to detect the number of passengers in the elevator car in real time and transmit the data to the MCU.

2. The elevator efficiency improvement and energy saving control device according to claim 1, characterized by The MCU also includes a 12V input to 3V DC-DC power supply circuit, which is used to connect to the 12V power supply of the ESC to power the MCU circuit board.

3. The elevator efficiency improvement and energy saving control device according to claim 1, characterized by The MCU also includes a filter capacitor for stabilizing the input power supply.

4. The elevator efficiency improvement and energy saving control device according to claim 1, characterized by The MCU also includes a chip program download interface for downloading programs to the MCU.

5. The elevator efficiency improvement and energy saving control device according to claim 1, characterized by The MCU also includes a reset circuit.

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