Elevator direction determination device and determination method after unexpected power outage

Abstract

The invention provides an elevator direction judgment device and judgment method after an unexpected power outage. The elevator direction judgment device comprises: a leveling position magnetic isolation plate, which is arranged in a floor leveling area in a shaft, and comprises: a leveling position X signal magnetic isolation part, a leveling position Z signal magnetic isolation part and a leveling position Y signal magnetic isolation part; a non-leveling position magnetic isolation plate above a refuge floor, which is arranged in the shaft, and comprises: a non-leveling position X signal magnetic isolation part above a refuge floor and a non-leveling position Z signal magnetic isolation part above a refuge floor connected to each other; a non-leveling position magnetic isolation plate below a refuge floor, which is arranged in the shaft, and comprises: a non-leveling position Z signal magnetic isolation part below a refuge floor and a non-leveling position Y signal magnetic isolation part below a refuge floor connected to each other; a leveling sensor, wherein a transmitter of the leveling sensor is arranged, and a receiver of the leveling sensor is arranged; a main controller, which is connected to the leveling sensor and determines the running direction of the car according to the induction signal of the leveling sensor.

Description

Technical Field

[0001] The invention belongs to the technical field of elevators, and in particular relates to a device and method for determining the direction of an elevator after an unexpected power outage. Background Art

[0002] According to the requirements of 5.9 in the National Standard for Fire Elevators GB26465, after the power is cut off, the fire elevator must know its running direction before self-rescue operation. The traditional magnetic isolation plate position detection technology cannot identify the position deviation of the car relative to the fire refuge floor.

[0003] In the prior art, the absolute position detection method is used to detect the specific position of the car in the shaft in real time, and determine the running direction after comparing the position with the fire refuge floor. However, the absolute position detection method is technically complex, requires more external equipment, and is costly. Summary of the invention

[0004] In order to overcome the above technical defects, the first aspect of the present invention provides an elevator direction determination device after an unexpected power outage, comprising:

[0005] The leveling position magnetic isolation plate is arranged in the floor leveling area in the hoistway, and comprises: a leveling position X signal magnetic isolation portion, a leveling position Z signal magnetic isolation portion, and a leveling position Y signal magnetic isolation portion, wherein the leveling position X signal magnetic isolation portion and the leveling position Y signal magnetic isolation portion are arranged on different sides of the leveling position Z signal magnetic isolation portion;

[0006] The magnetic isolation plate at the non-leveling position above the refuge floor is arranged in the hoistway, and comprises: an X signal magnetic isolation portion at the non-leveling position above the refuge floor and a Z signal magnetic isolation portion at the non-leveling position above the refuge floor, which are connected to each other;

[0007] The magnetic isolation plate at the non-leveling position below the refuge floor is arranged in the hoistway, and comprises: a Z signal magnetic isolation portion at the non-leveling position below the refuge floor and a Y signal magnetic isolation portion at the non-leveling position below the refuge floor, which are connected to each other;

[0008] The leveling sensor is installed on the top of the car and moves up and down. Its transmitter and receiver are installed on both sides of the magnetic isolation plate.

[0009] The main controller is connected to the leveling sensor and determines the current position of the car according to the sensing signal of the leveling sensor.

[0010] As a further improvement of the present invention, the leveling sensor is an infrared sensor.

[0011] As a further improvement of the present invention, the magnetic isolation plates at the leveling position, the magnetic isolation plates at the non-leveling position above the refuge layer, and the magnetic isolation plates at the non-leveling position below the refuge layer are metal magnetic isolation plates.

[0012] A second aspect of the present invention provides a method for determining the direction of an elevator after an unexpected power outage, which is implemented based on the above-mentioned elevator direction determination device and includes the steps of:

[0013] When the leveling sensor receiver does not receive a signal, it is determined that the position of the car is at the leveling position;

[0014] When the leveling sensor receiver receives the Y signal, it determines that the position of the car is above the refuge floor and is not in the leveling position;

[0015] When the leveling sensor receiver receives the X signal, it is determined that the position of the car is below the refuge floor and is not in the leveling position.

[0016] As a further improvement of the present invention, the present invention further comprises the following steps:

[0017] When the leveling sensor receiver receives the X signal, the Z signal and the Y signal, it is determined that there is a device abnormality in the car.

[0018] Compared with the prior art, the present invention has the following beneficial effects: the magnetic isolation plates on different floors have different magnetic isolation parts, the leveling sensor obtains different signals according to different magnetic isolation plates and sends them to the main controller, the main controller determines the position of the car according to different signal types, and then can determine the self-rescue direction of the elevator. The magnetic isolation plate in the present invention has a simple structure, does not require additional peripheral equipment, and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0020] Figure 1 This is a layout diagram of the elevator direction determination device described in Example 1;

[0021] Figure 2 This is a schematic diagram of the magnetic isolation plate at the leveling position described in Example 1;

[0022] Figure 3 This is a schematic diagram of a magnetic isolation plate at a non-level position above the refuge floor described in Example 1;

[0023] Figure 4 This is a schematic diagram of a magnetic isolation plate at a non-level position below the refuge layer described in Example 1;

[0024] Figure 5 This is a flow chart of the elevator direction determination method described in Example 2.

[0025] Marking description: 1. Magnetic isolation plate at leveling position; 11. Magnetic isolation part of signal X at leveling position; 12. Magnetic isolation part of signal Z at leveling position; 13. Magnetic isolation part of signal Y at leveling position; 2. Magnetic isolation plate at non-leveling position above the refuge floor; 21. Magnetic isolation part of signal X at non-leveling position above the refuge floor; 22. Magnetic isolation part of signal Z at non-leveling position above the refuge floor; 3. Magnetic isolation plate at non-leveling position below the refuge floor; 31. Magnetic isolation part of signal Z at non-leveling position below the refuge floor; 32. Magnetic isolation part of signal Y at non-leveling position below the refuge floor; 4. Leveling sensor; 41. Leveling sensor transmitter; 42. Leveling sensor receiver; 5. Main controller. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] Example 1

[0028] This embodiment provides a device for determining the direction of an elevator after an unexpected power outage. Figure 1 to Figure 4 As shown, it includes: a leveling position magnetic isolation plate 1, a non-leveling position magnetic isolation plate 21 above the refuge floor, a non-leveling position magnetic isolation plate 31 below the refuge floor, a leveling sensor 4 and a main controller; wherein the leveling position magnetic isolation plate 1 is arranged in the floor leveling area in the shaft, and includes: a leveling position X signal magnetic isolation portion 11, a leveling position Z signal magnetic isolation portion 12 and a leveling position Y signal magnetic isolation portion 13, the leveling position X signal magnetic isolation portion 11 and the leveling position Y signal magnetic isolation portion 13 are arranged on different sides of the leveling position Z signal magnetic isolation portion 12; the non-leveling position magnetic isolation plate 21 above the refuge floor is arranged in the shaft, that is Figure 1 The non-leveling position above the third floor includes: an X signal magnetic isolation part 21 and a Z signal magnetic isolation part 22 of the non-leveling position above the refuge floor connected to each other; a magnetic isolation plate 31 of the non-leveling position below the refuge floor is arranged in the shaft, that is, Figure 1 The non-leveling position below the third floor includes: a Z signal magnetic isolation part 3112 and a Y signal magnetic isolation part 32 of the non-leveling position below the refuge floor which are connected to each other; the transmitter of the leveling sensor 4 is set at, and the receiver of the leveling sensor 4 is set at; the main controller is connected to the leveling sensor 4, and the current position of the car is determined according to the sensing signal of the leveling sensor 4.

[0029] The leveling sensor 4 is arranged on the top of the car, and although the car moves up and down, the transmitter of the leveling sensor 4 includes: an X signal transmitter, a Z signal transmitter and a Y signal transmitter; the receiver of the leveling sensor 4 includes: an X signal receiver, a Z signal receiver and a Y signal receiver.

[0030] The X signal transmitter, the X signal receiver, the X signal magnetic isolation part 11 at the leveling position, and the X signal magnetic isolation part 21 at the non-leveling position above the refuge floor are located on the same straight line; the Z signal transmitter, the Z signal receiver, the Z signal magnetic isolation part 12 at the leveling position, the Z signal magnetic isolation part 22 at the non-leveling position above the refuge floor, and the Z signal magnetic isolation part 3112 at the non-leveling position below the refuge floor are located on the same straight line; the Y signal transmitter, the Y signal receiver, the Y signal magnetic isolation part 13 at the leveling position, and the Y signal magnetic isolation part 32 at the non-leveling position below the refuge floor are located on the same straight line. When the transmitter of the leveling sensor 4 sends a signal to the receiver of the leveling sensor 4, since the shapes of the magnetic isolation plate 1 at the leveling position, the magnetic isolation plate 21 at the non-leveling position above the refuge floor, and the magnetic isolation plate 31 at the non-leveling position below the refuge floor are all the same, the receiver of the leveling sensor 4 receives different signals and sends these signals to the main controller, which determines the running direction of the car according to the different signals.

[0031] Specifically, when the car is at the leveling position, due to the shape of the magnetic isolation plate 1 at the leveling position, the X signal, Z signal, and Y signal are blocked, and the receiver of the leveling sensor 4 cannot receive the signal. Conversely, when the receiver of the leveling sensor 4 does not receive the signal, the main controller determines that the car is at the leveling position; similarly, when the car is at a non-leveling position above the refuge floor, the receiver of the leveling sensor 4 can only receive the Y signal. Therefore, when the receiver of the leveling sensor 4 only receives the Y signal, the main controller determines that the car is at a non-leveling position above the refuge floor. At this time, the self-rescue direction of the elevator is downward; when the car is at a non-leveling position below the refuge floor, the receiver of the leveling sensor 4 can only receive the X signal. Therefore, when the receiver of the leveling sensor 4 receives the X signal, the main controller determines that the car is at a non-leveling position below the refuge floor, and the self-rescue direction of the elevator is upward.

[0032] Preferably, the leveling sensor 4 is an infrared sensor.

[0033] Preferably, the magnetic isolation plate 1 at the leveling position, the magnetic isolation plate 2 at the non-leveling position above the refuge layer, and the magnetic isolation plate 3 at the non-leveling position below the refuge layer are metal magnetic isolation plates.

[0034] To sum up, this embodiment has the following technical effects: the shapes of the magnetic isolation plates at different positions are designed to ensure that the shapes of the magnetic isolation plates detected by the elevator at the level position, the non-level position above the refuge floor, and the non-level position below the refuge floor will be different. The leveling sensor transmits different signals to the main controller according to the different shapes of the magnetic isolation plates. The main controller determines the position of the car according to these signals, and then determines the self-rescue direction of the elevator. The above technical solution does not require additional peripheral equipment, which can greatly reduce costs.

[0035] Example 2

[0036] This embodiment provides a method for determining the direction of an elevator after an unexpected power outage. Figure 5 As shown, the elevator direction determination device in Example 1 is implemented, including the steps of:

[0037] When the leveling sensor receiver does not receive a signal, it is determined that the car is at the leveling position;

[0038] When the leveling sensor receiver receives the Y signal, it is determined that the position of the car is above the refuge floor and not in the leveling position, and the self-rescue direction is downward;

[0039] When the leveling sensor receiver receives the X signal, it is determined that the position of the car is below the refuge floor and is not in the leveling position, and the self-rescue position is upward.

[0040] Furthermore, when the leveling sensor receiver receives the X signal, the Z signal, and the Y signal, it is determined that a device abnormality occurs in the car.

[0041] For the specific implementation process of this embodiment, please refer to Embodiment 1, which will not be described in detail here.

[0042] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A device for determining the direction of an elevator after an unexpected power outage, characterized in that: include: The leveling position magnetic isolation plate is arranged in the floor leveling area in the hoistway, and comprises: a leveling position X signal magnetic isolation portion, a leveling position Z signal magnetic isolation portion, and a leveling position Y signal magnetic isolation portion, wherein the leveling position X signal magnetic isolation portion and the leveling position Y signal magnetic isolation portion are arranged on different sides of the leveling position Z signal magnetic isolation portion; The magnetic isolation plate at the non-leveling position above the refuge floor is arranged in the hoistway, and comprises: an X signal magnetic isolation portion at the non-leveling position above the refuge floor and a Z signal magnetic isolation portion at the non-leveling position above the refuge floor, which are connected to each other; The magnetic isolation plate at the non-leveling position below the refuge floor is arranged in the hoistway, and comprises: a Z signal magnetic isolation portion at the non-leveling position below the refuge floor and a Y signal magnetic isolation portion at the non-leveling position below the refuge floor, which are connected to each other; The leveling sensor is installed on the top of the car and moves up and down with the car. Its transmitter and receiver are installed on both sides of the magnetic isolation plate. The main controller is connected to the leveling sensor and determines the running direction of the car according to the sensing signal of the leveling sensor.

2. The elevator direction determination device according to claim 1, characterized in that: The leveling sensor is an infrared sensor.

3. The elevator direction determination device according to claim 1, characterized in that: The magnetic isolation plates at the leveling position, the magnetic isolation plates at the non-leveling position above the refuge layer, and the magnetic isolation plates at the non-leveling position below the refuge layer are metal magnetic isolation plates.

4. A method for determining the direction of an elevator after an unexpected power outage, characterized in that: The elevator direction determination device according to claim 1 is implemented, comprising the steps of: When the leveling sensor receiver does not receive a signal, it is determined that the position of the car is at the leveling position; When the leveling sensor receiver receives the Y signal, it is judged that the position of the car is above the refuge floor and not in the leveling position, and the self-rescue direction is downward; When the leveling sensor receiver receives the X signal, it is determined that the position of the car is below the refuge floor and is not in the leveling position, and the self-rescue direction is upward.

5. The elevator direction determination method according to claim 4, characterized in that: The following steps are also included: When the leveling sensor receiver receives the X signal, the Z signal and the Y signal, it is determined that there is a device abnormality in the car.

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