Apparatus and method for testing elevator display unit and elevator system

1 . A detection device for an elevator display module, comprising:

memory;

a processor;

an I/O interface, configured to be coupled with one or more electroluminescent devices of the elevator display module;

a communication module; and

a computer program stored on the memory and running on the processor, the running of the computer program causes:

receiving a detection request signal for the elevator display module via the communication module;

in response to the detection request signal, applying a detection signal on at least one of the electroluminescent devices via the I/O interface;

obtaining an operating level associated with the detected electroluminescent device via the I/O interface; and

determining whether the detected electroluminescent device is working normally according to a polarity of the operating level;

wherein applying the detection signal on at least one of the electroluminescent devices via the I/O interface comprises applying a high voltage level to an anode of the at least one of the electroluminescent devices, wherein determining that the detected electroluminescent device is working normally occurs in response to detecting a high voltage at a cathode of the detected electroluminescent device; or

wherein applying the detection signal on at least one of the electroluminescent devices via the I/O interface comprises applying a low voltage level to a cathode of the at least one of the electroluminescent devices, wherein determining that the detected electroluminescent device is working normally occurs in response to detecting a low voltage at an anode of the detected electroluminescent device.

2 . The detection device according to claim 1 , wherein the detection device is an elevator control module for realizing elevator dispatching and control functions or a device dedicated to controlling elevator display.

3 . The detection device according to claim 1 , wherein the communication module is configured to receive the detection request signal from a user terminal via a wireless network, or receive the detection request signal from an elevator control cabinet of an elevator system via a wireless network or a wired network.

4 . The detection device according to claim 1 , wherein the detection request signal includes an equipment identification of the elevator display module or the detection device.

5 . The detection device according to claim 1 , wherein the detection request signal includes an identification of the electroluminescent device in the elevator display module.

6 . The detection device according to claim 3 , wherein the running of the computer program further causes:

sending a message about whether the detected electroluminescent device is working normally to the user terminal or the elevator control cabinet via the communication module.

7 . The detection device according to claim 1 , wherein the electroluminescent device is a light emitting diode, the I/O interface includes a plurality of first ports and a plurality of second ports, each of the first ports is configured to be coupled with the first end of the respective corresponding light emitting diode to apply the detection signal, and each of the second ports is configured to be coupled with the second end of the respective corresponding light emitting diode to obtain the operating level.

8 . The detection device according to claim 1 , wherein further comprising a combinational logic circuit, the electroluminescent device is a light emitting diode, and the I/O interface includes a plurality of first ports and one or more second ports, each of the first ports is configured to be coupled with the first pole of the respective corresponding light emitting diode to apply the detection signal, and an input terminal of the combinational logic circuit is configured to be coupled with the second pole of the plurality of light emitting diodes, at least one of the second ports is configured to be coupled with an output terminal of the combinational logic circuit to obtain the operating level.

9 . The detection device according to claim 1 , wherein the detection signal is a drive signal or a reset signal.

10 . An elevator system, comprising:

elevator control cabinet; and

a plurality of detection devices according to claim 1 .

11 . The elevator system according to claim 10 , wherein the elevator control cabinet is configured to periodically send the detection request signal to the detection device, and receive and store a message about whether the detected electroluminescent device is working normally sent by the detection device.

12 . The elevator system of claim 10 , wherein the elevator control cabinet is configured to, in response to an elevator display module test request from a user terminal or a remote server, send the detection request signal to the detection device, receive and forward to the user terminal or the remote server the message about whether the detected electroluminescent device is working normally sent by the detection device.

13 . A detection method for an elevator display module, the elevator display module includes one or more electroluminescent devices, and the detection method comprises the following performed by a detection device:

receiving a detection request signal for the elevator display module;

in response to the detection request signal, applying a detection signal on at least one of the electroluminescent devices;

obtaining an operating level associated with the detected electroluminescent device; and

determining whether the detected electroluminescent device is working normally according to a polarity of the operating level;

wherein applying the detection signal on at least one of the electroluminescent devices via the I/O interface comprises applying a high voltage level to an anode of the at least one of the electroluminescent devices, wherein determining that the detected electroluminescent device is working normally occurs in response to detecting a high voltage at a cathode of the detected electroluminescent device; or

wherein applying the detection signal on at least one of the electroluminescent devices via the I/O interface comprises applying a low voltage level to a cathode of the at least one of the electroluminescent devices, wherein determining that the detected electroluminescent device is working normally occurs in response to detecting a low voltage at an anode of the detected electroluminescent device.

14 . The detection method according to claim 13 , wherein the detection method is performed by an elevator control module for realizing elevator dispatching and control functions or a device dedicated to controlling elevator display.

15 . The detection method according to claim 13 , wherein the detection request signal is received from a user terminal via a wireless network, or the detection request signal is received from an elevator control cabinet of an elevator system via a wireless network or a wired network.

16 . The detection method according to claim 13 , wherein the detection request signal includes an equipment identification of the elevator display module or the detection device.

17 . The detection method according to claim 13 , wherein the detection request signal includes an identification of the electroluminescent device in the elevator display module.

18 . The detection method according to claim 15 , further comprising:

sending a message about whether the detected electroluminescent device is working normally to the user terminal or the elevator control cabinet.

19 . The detection method according to claim 13 , wherein the detection signal is a drive signal or a reset signal.

20 . A non-transitory computer-readable storage medium having instructions stored in the non-transitory computer-readable storage medium, wherein, when the instructions are executed by a processor, the processor is caused to execute the detection method according to claim 13 .