Lift shaft lighting device and control method

Abstract

The invention discloses an elevator hoistway lighting device and a control method, and the device comprises a single-chip microcomputer, a car roof lighting assembly and an illuminance sensor which are arranged at the top end of a car, a plurality of lighting assemblies distributed on all layers of a hoistway, and a car position collection part connected with the single-chip microcomputer. The car roof lighting assembly comprises a human body induction sensor, a first relay and a car roof lighting lamp, the signal output end of the human body induction sensor and the control end of the first relay are connected to the same port of the single-chip microcomputer, the other end of the first relay is grounded, and one end of a normally-open contact of the first relay is connected with the positive electrode of the power source. The signal output end of the illuminance sensor is connected with one port of the single chip microcomputer; according to the invention, the workload of manually operating a hoistway lighting switch by personnel is saved, and the waste of electric energy is also reduced.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, and in particular to an elevator shaft lighting device and control method. Background Technology

[0002] Elevators are one of the most important vertical transportation tools in modern society. Their safe and reliable operation depends on high-quality maintenance and upkeep. Elevators can be divided into three parts according to spatial division: the machine room, the hoistway, and the pit. Relevant standards and technical specifications require lighting devices to be installed in the machine room, hoistway, and pit to ensure that maintenance personnel have sufficient lighting for safe maintenance work and elevator troubleshooting. For example, GB / T 10060-2023 "Elevator Installation and Acceptance Specification" requires that hoistway lighting should have one lamp at each of the highest and lowest points within 0.5m, and one lamp on each intermediate floor. The illuminance at 1.0m above the car top within the vertical projection range of the car top should be at least 50 lx. Additional lights may be installed on the car top if necessary. Pit lighting is usually installed 1.0-1.5m above the pit floor, with a brightness of not less than 50 lx.

[0003] Currently, elevator shaft lighting switches are located near the main switches in the pit and machine room, respectively. The shaft lighting is connected in series in the control circuit of the shaft lighting system to achieve the effect of turning the entire shaft lighting on or off. Excessive illumination in the shaft leads to energy waste, and the lighting devices are prone to damage after long-term use, increasing operating costs. Furthermore, there are situations where the shaft lighting cannot be controlled from the machine room or pit, requiring personnel to return to the pit or machine room to turn on the switches, increasing the workload of maintenance personnel. If maintenance personnel enter the shaft without turning on the lighting, there is a greater safety risk. Therefore, we propose an elevator shaft lighting device and control method. Summary of the Invention

[0004] The problem this invention aims to solve is how to eliminate the need for elevator maintenance personnel to manually operate the shaft lighting switch and reduce energy waste.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an elevator shaft lighting device and control method.

[0006] The technical solution of this application is as follows: On one hand, this application provides an elevator shaft lighting device, including: The system includes a microcontroller, a car top lighting assembly and an illuminance sensor mounted on the top of the car, multiple lighting assemblies distributed on each floor of the hoistway, and a car position acquisition device connected to the microcontroller. The car top lighting assembly includes a human body sensor, a first relay, and a car top light. The signal output terminal of the human body sensor and the control terminal of the first relay are connected to the same port of the microcontroller. The other end of the first relay is grounded. One end of the normally open contact of the first relay is connected to the positive terminal of the power supply, and the other end is connected to one end of the car top light. The signal output terminal of the illuminance sensor is connected to one port of the microcontroller.

[0007] As a preferred embodiment of the elevator shaft lighting device of the present invention, the car position acquisition device includes a Hall sensor installed on the car and multiple magnets installed on each floor of the shaft, each magnet being a unique identifier.

[0008] As a preferred embodiment of the elevator shaft lighting device of the present invention, the plurality of lighting components distributed on each floor of the shaft include a second relay and a shaft lighting lamp. The control terminal of the second relay is connected to a port of a microcontroller, the other end of the second relay is grounded, one end of the normally open contact of the second relay is connected to the positive terminal of the power supply, and the other end is connected to one end of the shaft lighting lamp.

[0009] As a preferred embodiment of the elevator shaft lighting device of the present invention, it further includes a horn, the control terminal of which is connected to one port of a microcontroller, and the other end of which is grounded.

[0010] On the other hand, this application provides a control method for an elevator shaft lighting device, including the following steps; S1: When a person enters the top of the car, the human body sensor can detect the person. The microcontroller cyclically collects the entry signal emitted by the human body sensor. After collecting the entry signal, the microcontroller controls the normally open contact of the first relay to close, so that the car top light is turned on. The Hall sensor receives the magnetic signal in the hoistway of that floor. The microcontroller collects the floor information received by the Hall sensor. According to the floor information, the microcontroller controls the second relay in the corresponding floor hoistway to close the normally open contact of the second relay, so that the corresponding hoistway light in the hoistway of that floor is turned on. The illuminance sensor monitors the light intensity on the top of the car in real time. If the light intensity is less than the preset light intensity value, the microcontroller controls the normally open contact of the second relay of the adjacent floor above the hoistway to close, so that the corresponding hoistway light is turned on, until the light intensity detected by the illuminance sensor reaches the preset light intensity value. If the light intensity detected by the illuminance sensor still does not reach the preset light intensity value after all the hoistway lights on the top of the car are turned on, the microcontroller controls the speaker to emit an alarm sound. S2: When the elevator is going up, the microcontroller collects the floor information continuously received by the Hall sensor and controls all normally open contacts of the second relays below the current floor shaft to open, so that the corresponding shaft lights are turned off, keeping all shaft lights at the bottom of the car off; S3: When the elevator is going up, the illuminance sensor monitors the light intensity on the top of the car in real time. If the light intensity is less than the preset light intensity value, the microcontroller will control the normally open contact of the second relay in the upward direction of the car to close and turn on the corresponding hoistway lights until the light intensity monitored by the illuminance sensor reaches the preset light intensity value. If the light intensity monitored by the illuminance sensor still does not reach the preset light intensity value after all the hoistway lights on the top of the car are turned on, the microcontroller will control the speaker to sound an alarm. S4: When the elevator is descending, the microcontroller collects the floor information continuously received by the Hall sensor, and the illuminance sensor monitors the light intensity on the top of the car in real time. If the light intensity is less than the preset light intensity value, the microcontroller sequentially controls the normally open contact of the second relay in the downward direction of the car to close, turning on the corresponding hoistway lights until the light intensity detected by the illuminance sensor reaches the preset light intensity value. If the light intensity detected by the illuminance sensor still does not reach the preset light intensity value after all the hoistway lights on the top of the car are turned on, the microcontroller controls the speaker to emit an alarm sound.

[0011] The beneficial effects of this invention are as follows: After a person enters the car top through a human body induction sensor, the microcontroller controls the first relay to power on the car top lighting, saving maintenance personnel the work of going to the machine room or the bottom of the shaft. After receiving the floor signal sent by the car position acquisition device, the microcontroller controls the shaft lighting in the corresponding floor to light up. The illuminance sensor feeds back the brightness monitoring signal. If the brightness is less than the preset light intensity value, the microcontroller controls the shaft lighting of the adjacent floors above that floor to light up in sequence until the preset light intensity value is reached. This not only does not affect the lighting for personnel working, but also reduces the waste of electricity. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a circuit diagram of the present invention.

[0013] Figure 2 This is a schematic diagram of the device of the present invention. Detailed Implementation

[0014] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be described in detail below with reference to the accompanying drawings. Example 1

[0015] Reference Figures 1-2 This embodiment is an elevator shaft lighting device, including... The system includes a microcontroller 1, a car top lighting assembly 2 and an illuminance sensor 3 installed at the top of the car, multiple lighting assemblies 4 distributed on each floor of the hoistway, and a car position acquisition device 5 connected to the microcontroller 1. The car top lighting assembly 2 includes a human body sensor 201, a first relay 202 and a car top light 203. The signal output terminal of the human body sensor 201 and the control terminal of the first relay 202 are connected to the same port of the microcontroller 1. The other end of the first relay 202 is grounded. One end of the normally open contact of the first relay 202 is connected to the positive terminal of the power supply, and the other end is connected to one end of the car top light 203. The signal output terminal of the illuminance sensor 3 is connected to one port of the microcontroller 1.

[0016] Microcontroller 1 is an ARDUINO MEGA 2560, human body sensor 201 is a P924M-S type, and illuminance sensor 3 is a BH1750FVI-TR type. The VDD pin of human body sensor 201 is connected to the power supply, and pin 1 of the REL terminal is the output terminal, connected to pin 49 of microcontroller 1. When human body sensor 201 detects a person, microcontroller 1 collects the entry signal from human body sensor 201 through pin 49 and REL terminal pin 1. Pin 1 of the first relay 202 is connected to pin 49 of microcontroller 1, pin 4 of the first relay 202 is grounded (connected to GND), pin 3 of the normally open contact of the first relay 202 is connected to the positive power supply, and pin 2 is connected to the car... At one end of the overhead lighting 203, when the microcontroller 1 receives the entry signal from the human body sensor 201, it outputs a high level through pin 49, and pins 3 and 2 of the first relay 202 are turned on. Current flows through pins 3 and 2 and the overhead lighting 203, illuminating the overhead lighting 203. The microcontroller 1 collects the floor information received by the car position acquisition unit 5. The VCC pin of the illuminance sensor 3 is connected to the positive power supply. The SCL and SDA pins of the illuminance sensor 3 are connected to pins 7 and 9 of the microcontroller 1, respectively. The microcontroller 1 can then collect the light intensity value monitored by the illuminance sensor 3. The microcontroller 1 can also control the lighting components 4 in the corresponding floor shaft to turn on.

[0017] Preferably, the car position acquisition unit 5 includes a Hall sensor 501 installed on the car and multiple magnets 502 installed on each floor of the hoistway, each magnet 502 being a unique identifier.

[0018] Since each floor of the hoistway has a unique magnet 502, the Hall sensor 501 installed on the car can quickly obtain floor information and pass through each floor. The Hall sensor 501 is connected to pin 15 of the microcontroller 1 through the OUT pin, and the microcontroller 1 can collect floor information through the OUT pin and pin 15.

[0019] Preferably, the multiple lighting components 4 distributed on each layer of the shaft include a second relay 401 and a shaft lighting lamp 402. The control terminal of the second relay 401 is connected to one port of the microcontroller 1, and the other end of the second relay 401 is grounded. One end of the normally open contact of the second relay 401 is connected to the positive terminal of the power supply, and the other end is connected to one end of the shaft lighting lamp 402.

[0020] The number of lighting components 4 is set according to the number of floors. One lighting component 4 is set in the shaft corresponding to each floor. The pins 1 of multiple second relays 401 in the multiple lighting components 4 are connected to the I / O pins of the microcontroller 1 respectively. For example, the pins 1 of the second relay 401 can be connected to the PB0 pin, PC0 pin, PD0 pin, or PE0 pin of the microcontroller 1. When the pins 1 of the second relay 401 receive a high level output from the microcontroller 1, since the pins 4 of the second relay 401 are grounded (connected to GND), the normally open contact pin 3 is connected to the positive terminal of the power supply, and the pin 2 is connected to one end of the shaft lighting lamp 402. The other end of the shaft lighting lamp 402 is grounded. Therefore, the shaft lighting lamp 402 corresponding to the connection of pins 3 and pin 2 will be lit.

[0021] Preferably, it also includes a speaker 6, the control terminal of which is connected to one port of the microcontroller 1, and the other end of the speaker 6 is grounded.

[0022] Connect one end of the speaker 6 to pin 50 of the microcontroller 1, and ground the other end (connect to GND). The microcontroller 1 controls the speaker 6 to provide an early warning. Example 2

[0023] Reference Figures 1-2 This embodiment is a control method for an elevator shaft lighting device. Based on the previous embodiment, this embodiment includes the following steps: S1: When a person enters the top of the car, the human body sensor 201 detects the person. The microcontroller 1 cyclically collects the entry signal emitted by the human body sensor 201. After collecting the entry signal, the microcontroller 1 controls the normally open contact of the first relay 202 to close, turning on the car top lighting 203. The Hall sensor 501 receives the signal from the magnet 502 in the hoistway of that floor. The microcontroller 1 collects the floor information received by the Hall sensor 501. Based on the floor information, the microcontroller 1 controls the second relay 401 in the corresponding floor hoistway, causing the normally open contact of the second relay 401 to close. When the open contact closes, the corresponding hoistway light 402 in the hoistway of that floor is turned on. The illuminance sensor 3 monitors the light intensity on the top of the car in real time. If the light intensity is less than the preset light intensity value, the microcontroller 1 controls the normally open contact of the second relay 401 of the adjacent floor above the hoistway to close, turning on the corresponding hoistway light 402 until the light intensity monitored by the illuminance sensor 3 reaches the preset light intensity value. If the light intensity monitored by the illuminance sensor 3 still does not reach the preset light intensity value after all the hoistway lights 402 on the top of the car are turned on, the microcontroller 1 controls the speaker 6 to emit an alarm sound. S2: When the elevator is going up, the microcontroller 1 collects the floor information continuously received by the Hall sensor 501 and controls all normally open contacts of the second relays 401 below the current floor shaft to open, so that the corresponding shaft lighting 402 is turned off, keeping all shaft lighting 402 at the bottom of the car off; S3: When the elevator is going up, the illuminance sensor 3 monitors the light intensity on the top of the car in real time. If the light intensity is less than the preset light intensity value, the microcontroller 1 controls the normally open contact of the second relay 401 in the upward direction of the car to close and turn on the corresponding shaft lighting 402 until the light intensity monitored by the illuminance sensor 3 reaches the preset light intensity value. If the light intensity monitored by the illuminance sensor 3 still does not reach the preset light intensity value after all the shaft lighting 402 on the top of the car is turned on, the microcontroller 1 controls the speaker 6 to emit an alarm sound. S4: When the elevator is descending, the microcontroller 1 collects the floor information continuously received by the Hall sensor 501, and the illuminance sensor 3 monitors the light intensity on the top of the car in real time. If the light intensity is less than the preset light intensity value, the microcontroller 1 controls the normally open contact of the second relay 401 in the downward direction of the car to close, turning on the corresponding hoistway lighting 402 until the light intensity monitored by the illuminance sensor 3 reaches the preset light intensity value. If the light intensity monitored by the illuminance sensor 3 still does not reach the preset light intensity value after all the hoistway lighting 402 on the top of the car is turned on, the microcontroller 1 controls the speaker 6 to emit an alarm sound.

[0024] Working principle: When a person enters the top of the elevator car, the human body sensor 201 detects the person, and the microcontroller 1 collects the entry signal from the human body sensor 201. The microcontroller 1 outputs a high level to pin 1 of the first relay 202 through pin 49. The normally open contact of the first relay 202 closes, and pins 3 and 2 conduct. Current flows through pins 3 and 2 and the car top lighting 203, illuminating the car top lighting 203. The Hall sensor 501 is connected to pin 15 of the microcontroller 1 through the OUT pin. The microcontroller 1 collects the current floor information and connects to the second relay 401 in the corresponding floor shaft through pin 49. A high-level output closes the normally open contact of the second relay 401 in the corresponding floor shaft, turning on pins 3 and 2 of the second relay 401. Current flows through pins 3 and 2 and the shaft lighting 402, illuminating the shaft lighting 402. The SCL and SDA pins of the illuminance sensor 3 are connected to pins 7 and 9 of the microcontroller 1, respectively. This allows the microcontroller 1 to collect the light intensity value detected by the illuminance sensor 3. The microcontroller 1 then determines whether the light intensity value monitored by the illuminance sensor 3 reaches a preset light intensity value, which can be freely set by the operator, such as 50 lux. When the monitored light intensity value is less than the preset light intensity value, the microcontroller 1 sequentially controls the normally open contacts of the second relays 401 on the adjacent floors above the current floor to close, turning on the corresponding shaft lights 402, until the light intensity monitored by the illuminance sensor 3 reaches the preset light intensity value. If even with all the shaft lights 402 on the top of the car turned on, the preset light intensity value cannot be reached, the microcontroller 1 controls the horn 6 to activate the alarm. When the elevator is moving upwards, the microcontroller 1 continuously collects floor information received by the Hall sensor 501. Based on the latest collected floor information, the microcontroller 1 controls all normally open contacts of the second relays 401 below the current floor to open. This disconnects pins 2 and 3, turning off the corresponding hoistway lighting 402. All hoistway lighting 402 at the bottom of the car remains off. Illuminance sensor 3 at the top of the car monitors the light intensity at the top of the car in real time. If the light intensity is less than the preset light intensity value, the microcontroller 1 controls the normally open contact of the second relay 401 in the upward direction of the car to close according to the latest collected current floor information, turning on the corresponding hoistway lighting 402 until the light intensity monitored by illuminance sensor 3 reaches the preset light intensity value. If the preset light intensity value cannot be reached even if all the hoistway lighting 402 at the top of the car are turned on, the microcontroller 1 controls the speaker 6 to turn on the alarm.As the elevator descends, the microcontroller 1 continuously collects the latest floor position information received by the Hall sensor 501. Based on the latest collected floor information, it sequentially controls the normally open contact of the second relay 401 in the downward direction of the elevator car to close. After pins 3 and 2 of the second relay 401 are connected, the corresponding hoistway lighting 402 is turned on until the light intensity detected by the illuminance sensor 3 reaches the preset light intensity value. If the preset light intensity value cannot be reached even when all the hoistway lighting 402 lights at the top of the car are turned on, the microcontroller 1 controls the speaker 6 to activate the alarm, reminding maintenance personnel to check whether there is a malfunction or low power in the hoistway lighting 402.

[0025] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An elevator shaft lighting device, characterized in that, The system includes a microcontroller (1), a car top lighting assembly (2) and an illuminance sensor (3) installed on the top of the car, multiple lighting assemblies (4) distributed on each floor of the hoistway, and a car position acquisition device (5) connected to the microcontroller (1). The car top lighting assembly (2) includes a human body sensor (201), a first relay (202) and a car top light (203). The signal output terminal of the human body sensor (201) and the control terminal of the first relay (202) are connected to the same port of the microcontroller (1). The other end of the first relay (202) is grounded. One end of the normally open contact of the first relay (202) is connected to the positive terminal of the power supply, and the other end is connected to one end of the car top light (203). The signal output terminal of the illuminance sensor (3) is connected to one port of the microcontroller (1).

2. The elevator shaft lighting device as described in claim 1, characterized in that: The car position acquisition device (5) includes a Hall sensor (501) installed on the car and multiple magnets (502) installed on each floor of the hoistway, with each magnet (502) being a unique identifier.

3. The elevator shaft lighting device as described in claim 1, characterized in that: The multiple lighting components (4) distributed in each layer of the shaft include a second relay (401) and a shaft lighting lamp (402). The control terminal of the second relay (401) is connected to a port of the microcontroller (1), and the other end of the second relay (401) is grounded. One end of the normally open contact of the second relay (401) is connected to the positive terminal of the power supply, and the other end is connected to one end of the shaft lighting lamp (402).

4. The elevator shaft lighting device as described in claim 1, characterized in that: It also includes a speaker (6), the control terminal of which is connected to one port of the microcontroller (1), and the other end of the speaker (6) is grounded.

5. A control method for an elevator shaft lighting device according to any one of claims 1-4, characterized in that, Includes the following steps: S1: When a person enters the top of the car, the human body sensor (201) can detect the person. The microcontroller (1) cyclically collects the entry signal emitted by the human body sensor (201). After collecting the entry signal, the microcontroller (1) controls the normally open contact of the first relay (202) to close, so that the car top lighting (203) is lit. The Hall sensor (501) receives the signal from the magnet (502) in the hoistway of that floor. The microcontroller (1) collects the floor information received by the Hall sensor (501). The microcontroller (1) controls the second relay (401) in the corresponding floor hoistway according to the floor information, so that the second relay (401) When the normally open contact of the elevator shaft is closed, the corresponding shaft lighting lamp (402) in the shaft shaft of that floor is lit. The illuminance sensor (3) monitors the light intensity on the top of the car in real time. If the light intensity is less than the preset light intensity value, the microcontroller (1) controls the normally open contact of the second relay (401) of the adjacent floor above the shaft shaft of that floor to close in sequence, and turns on the corresponding shaft lighting lamp (402) until the light intensity monitored by the illuminance sensor (3) reaches the preset light intensity value. If the light intensity monitored by the illuminance sensor (3) still does not reach the preset light intensity value after all the shaft lighting lamps (402) on the top of the car are turned on, the microcontroller (1) controls the speaker (6) to emit an alarm prompt sound. S2: When the elevator goes up, the microcontroller (1) collects the floor information continuously received by the Hall sensor (501) and controls the normally open contact of the second relay (401) in the corresponding floor shaft to open, so that the corresponding shaft lighting (402) is turned off, and all the shaft lighting (402) at the bottom of the car is turned off; S3: When the elevator is going up, the illuminance sensor (3) monitors the light intensity on the top of the car in real time. If the light intensity is less than the preset light intensity value, the microcontroller (1) controls the normally open contact of the second relay (401) in the upward direction of the car to close and turn on the corresponding shaft lighting (402) until the light intensity monitored by the illuminance sensor (3) reaches the preset light intensity value. If the light intensity monitored by the illuminance sensor (3) still does not reach the preset light intensity value after all the shaft lighting (402) on the top of the car is turned on, the microcontroller (1) controls the speaker (6) to emit an alarm sound. S4: When the elevator is going down, the microcontroller (1) collects the floor information continuously received by the Hall sensor (501), and the illuminance sensor (3) monitors the light intensity on the top of the car in real time. If the light intensity is less than the preset light intensity value, the microcontroller (1) controls the normally open contact of the second relay (401) in the downward direction of the car to close and turn on the corresponding shaft lighting (402) until the light intensity monitored by the illuminance sensor (3) reaches the preset light intensity value. If the light intensity monitored by the illuminance sensor (3) still does not reach the preset light intensity value after all the shaft lighting (402) on the top of the car is turned on, the microcontroller (1) controls the speaker (6) to emit an alarm sound.

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