A stand-alone detection system for an elevator landing door

Abstract

The utility model provides a kind of independent detection system for elevator landing door, the opening and closing of elevator landing door are realized using landing door lock, two wiring ends of the two ends of landing door lock are accessed into landing door lock circuit, characterized in that, the independent detection system includes transmitting end module and receiving end module, the transmitting end includes signal acquisition module, transmitting end controller, transmitting end power module, transmitting end wireless communication module;The signal acquisition module can acquire the change of circuit signal when landing door lock circuit controls landing door lock, the transmitting end controller can obtain the change of circuit signal collected by signal acquisition module and transmit relevant data to receiving end module by transmitting end wireless communication module;The transmitting end power module powers entire transmitting end module.

Description

Technical Field

[0001] This utility model relates to the field of elevator landing door inspection, and more particularly to an independent inspection system for elevator landing doors. Background Technology

[0002] Currently, elevators in use both domestically and internationally generally employ a single-wire series connection for their landing door circuits. This traditional design has significant drawbacks: if a door lock malfunctions at a particular landing door—such as incomplete closing, poor contact, or oxidation and loose connections—the entire circuit will be affected, causing the elevator to immediately stop operating. Although some brands, such as Hitachi, have implemented two-stage circuit detection, for high-rise buildings, it is still impossible to accurately pinpoint the specific fault location when a landing door malfunctions. Especially in high-rise buildings, with the increase in the number of landing doors, the potential fault points also increase accordingly. Maintenance personnel typically need to check each door lock on each floor, which not only consumes a significant amount of time and manpower, increasing maintenance costs, but also may lead to safety accidents due to untimely fault diagnosis, posing a significant safety hazard to passengers. Utility Model Content

[0003] The main objective of this invention is to provide an independent detection system for elevator landing doors, which can detect landing door lock malfunctions and determine the location of the corresponding landing door lock.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an independent detection system for elevator landing doors, wherein the elevator landing doors are opened and closed using landing door locks, and the two terminals of the landing door locks are connected to the landing door lock circuit. The independent detection system comprises a transmitting module and a receiving module. The transmitting module includes a signal acquisition module, a transmitting controller, a transmitting power supply module, and a transmitting wireless communication module. The signal acquisition module can acquire changes in the circuit signals of the landing door lock circuit when controlling the landing door lock. The transmitting controller can acquire the changes in the circuit signals acquired by the signal acquisition module and transmit the relevant data to the receiving module through the transmitting wireless communication module. The transmitting power supply module supplies power to the entire transmitting module.

[0005] Preferably, the receiving module includes a receiving controller, a receiving power module, and a receiving wireless communication module. The receiving controller receives the data through the receiving communication module and determines whether the door lock is faulty and the location of the fault based on the data.

[0006] Preferably, each elevator landing door corresponds to one transmitter module, and multiple elevator landing doors correspond to one receiver module.

[0007] Preferably, the signal acquisition module uses a relay, and the two ends of the relay coil are respectively connected to the two terminals of the door lock. The main circuit of the relay is connected to the transmitter controller, and the transmitter controller can detect the relay's conduction signal.

[0008] Preferably, the transmitter controller and the receiver controller are the same, both including a microcontroller, a reset circuit and a crystal oscillator circuit. The reset circuit includes a first line, a second line, a capacitor C2 set on the first line, and a reset switch U2 set on the second line. One end of the first line and the second line are connected to the same 5V power supply, and the other end of the first line and the second line are connected to the RST reset port of the microcontroller through a third line.

[0009] Preferably, the crystal oscillator circuit includes a fifth line, a sixth line, a capacitor C1 disposed on the fifth line, a capacitor C3 disposed on the sixth line, and a crystal oscillator X1. One end of the fifth line is connected to the XTAL2 port of the microcontroller, one end of the sixth line is connected to the XTAL1 port of the microcontroller, and the other ends of the fifth line and the other ends of the sixth line are grounded. One end of the crystal oscillator X1 is connected to the portion of the fifth line located between the capacitor C1 and the microcontroller, and the other end of the crystal oscillator X1 is connected to the portion of the sixth line located between the capacitor C3 and the microcontroller.

[0010] Preferably, it also includes a fourth line, one end of which is connected to the third line and the other end is grounded, and a resistor R1 is provided on the fourth line.

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

[0012] This invention connects a relay in parallel to the control circuit of the landing door lock on each floor of the elevator. When the control circuit is energized, the coil of the relay is energized, causing a change in the circuit of the relay's main circuit. This allows the system to determine whether the landing door lock is malfunctioning based on the change in the main circuit of the relay, and to determine which landing door lock is malfunctioning based on preset position information. Attached Figure Description

[0013] Figure 1 It is based on the schematic diagram of this utility model;

[0014] Figure 2 It is a circuit diagram of the transmitter controller or receiver controller. Detailed Implementation

[0015] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0016] Example 1

[0017] The elevator landing door uses a landing door lock to open and close the elevator landing door. The landing door lock is controlled by a landing door lock circuit, which uses existing technology.

[0018] An independent detection system for elevator landing doors includes a transmitter module and a receiver module. The transmitter module includes a signal acquisition module, a transmitter controller, a transmitter power supply module, and a transmitter wireless communication module. The receiver module includes a receiver controller, a receiver power supply module, and a receiver wireless communication module. Each elevator landing door corresponds to one transmitter module, and multiple elevator landing doors correspond to one receiver module.

[0019] The signal acquisition module uses a relay. The two ends of the relay coil are connected to the two terminals of the landing door lock. When the landing door lock is energized, the relay coil is energized, and the relay closes. The main circuit of the relay is connected to the transmitter controller, which can detect the relay's conduction signal. The transmitter controller is electrically connected to the transmitter wireless communication module. When the transmitter controller detects the relay's conduction signal, it transmits data to the receiver via the transmitter wireless communication module. The transmitted data includes the relay's status and the transmitter module's location identification information. The location identification information can be the transmitter controller's unique identifier. The receiver controller has a pre-set unique identifier and corresponding location information for each transmitter controller. When the receiver controller receives the data, it obtains the relay's status and its corresponding unique identifier, thereby determining which elevator landing door is malfunctioning, thus enabling elevator landing door detection.

[0020] The transmitter power module is electrically connected to the transmitter controller and is used to power the entire transmitter module. The receiver power module is electrically connected to the receiver controller and is used to power the entire receiver module.

[0021] Both the transmitting and receiving wireless communication modules use LoRa wireless communication modules.

[0022] Example 2

[0023] This embodiment further illustrates the receiver controller and the transmitter controller, which are completely identical and will be described below as controllers.

[0024] The controller includes a microcontroller, a reset circuit, and a crystal oscillator circuit. The reset circuit includes a first line 1, a second line 2, a capacitor C2 on the first line 1, and a reset switch U2 on the second line 2. One end of the first line 1 and the second line 2 are connected to the same 5V power supply, and the other end of the first line 1 and the second line 2 are connected to the RST reset port of the microcontroller via a third line.

[0025] The crystal oscillator circuit includes a fifth line 5, a sixth line 6, a capacitor C1 disposed on the fifth line 5, a capacitor C3 disposed on the sixth line 6, and a crystal oscillator X1. One end of the fifth line 5 is connected to the XTAL2 port of the microcontroller, and one end of the sixth line 6 is connected to the XTAL1 port of the microcontroller. The other ends of the fifth line 5 and the other ends of the sixth line 6 are grounded. One end of the crystal oscillator X1 is connected to the portion of the fifth line 5 located between the capacitor C1 and the microcontroller, and the other end of the crystal oscillator X1 is connected to the portion of the sixth line 6 located between the capacitor C3 and the microcontroller.

[0026] The controller also includes a fourth line 4, one end of which is connected to the third line 3 and the other end is grounded. A resistor R1 is provided on the fourth line 4.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An independent detection system for elevator landing doors, characterized in that, The elevator landing door uses a landing door lock to open and close the elevator landing door. The two terminals of the landing door lock are connected to the landing door lock circuit. The independent detection system includes a transmitter module and a receiver module. The transmitter includes a signal acquisition module, a transmitter controller, a transmitter power supply module, and a transmitter wireless communication module. The signal acquisition module can collect changes in the circuit signal when the landing door lock is controlled. The transmitter controller can acquire the changes in the circuit signal collected by the signal acquisition module and transmit the data to the receiver module through the transmitter wireless communication module. The transmitter power supply module supplies power to the entire transmitter module.

2. The independent detection system for elevator landing doors according to claim 1, characterized in that, The receiving module includes a receiving controller, a receiving power module, and a receiving wireless communication module. The receiving controller receives the data through the receiving communication module and determines whether the door lock is faulty and the location of the fault based on the data.

3. The independent detection system for elevator landing doors according to claim 1, characterized in that, Each elevator door corresponds to one transmitter module, and multiple elevator doors correspond to one receiver module.

4. The independent detection system for elevator landing doors according to claim 1, characterized in that, The signal acquisition module uses a relay, and the two ends of the relay coil are respectively connected to the two terminals of the door lock. The main circuit of the relay is connected to the transmitter controller, which can detect the relay's conduction signal.

5. The independent detection system for elevator landing doors according to claim 1, characterized in that, The transmitter controller and receiver controller are the same, both including a microcontroller, a reset circuit and a crystal oscillator circuit. The reset circuit includes a first line, a second line, a capacitor C2 set on the first line, and a reset switch U2 set on the second line. One end of the first line and the second line are connected to the same 5V power supply, and the other end of the first line and the second line are connected to the RST reset port of the microcontroller through a third line.

6. The independent detection system for elevator landing doors according to claim 5, characterized in that, The crystal oscillator circuit includes a fifth line, a sixth line, a capacitor C1 disposed on the fifth line, a capacitor C3 disposed on the sixth line, and a crystal oscillator X1. One end of the fifth line is connected to the XTAL2 port of the microcontroller, one end of the sixth line is connected to the XTAL1 port of the microcontroller, and the other ends of the fifth line and the other ends of the sixth line are grounded. One end of the crystal oscillator X1 is connected to the portion of the fifth line located between capacitor C1 and the microcontroller, and the other end of the crystal oscillator X1 is connected to the portion of the sixth line located between capacitor C3 and the microcontroller.

7. The independent detection system for elevator landing doors according to claim 6, characterized in that, It also includes a fourth line, one end of which is connected to the third line and the other end is grounded, and a resistor R1 is provided on the fourth line.

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