CN221804557U - Fault detection device for platform controller - Google Patents

Abstract

The utility model provides a fault detection device for a platform controller, which relates to the technical field of fault detection, including: a programmable logic controller, connected with a plurality of status indicator lights; a controller connector, connected with the programmable logic controller, and the platform controller to be detected is plugged and connected with the controller connector; a sensor connector, connected with the programmable logic controller, and an external sensor is plugged into the sensor connector; a human-machine interaction panel, connected with the programmable logic controller; a shell, the programmable logic controller is integrated inside the shell, and a plurality of openings are provided on the surface of the shell, and each status indicator light, controller connector, sensor connector, and human-machine interaction panel are exposed from the corresponding openings. The beneficial effect is to provide a visual fault detection device through the status indicator light to detect the platform controller, the detection result is clear at a glance, saving manpower and time, and providing a sensor connector that can be plugged into other sensors for auxiliary detection.

Description

Fault detection device for platform controller

Technical Field

The utility model relates to the technical field of fault detection, in particular to a fault detection device for a platform controller.

Background Art

The scissor-type aerial work platform (aerial work vehicle) includes: mechanical travel control, platform lifting control, steering control, control mode conversion, horn control, high and low speed conversion, strobe light control, etc. The control of all actions of the scissor-type aerial work platform is composed of the main controller (Electronic Control Unit, ECU) and the platform controller (Platform Control Unit, PCU) (as shown in Figure 1).

The ECU is installed on the chassis as the control center, coordinating the control of the vehicle's electrical system by processing different analog quantities, switch quantities, fault code display, and functional parameter adjustment. The ECU drives the pump station motor or travel motor and other units through the drive unit (motor controller/travel controller) to operate the aerial work platform to complete various functional actions.

The control modes of scissor-type aerial work platforms are divided into: platform control and chassis control. The operator can control the walking, steering, lifting and lowering of the scissor-type aerial work platform through the platform controller. Chassis control is an auxiliary operation mode, which is carried out through the chassis operation panel and can operate the lifting and lowering of the scissor-type aerial work platform. The chassis is equipped with emergency brake release and emergency lowering zippers to complete the brake release and platform lowering actions under special circumstances.

The platform controller on the aerial work platform is a component that controls signal input and displays the equipment status and faults. The operator can control the scissor-type aerial work platform's walking, steering, lifting, lowering, and emergency stop through the handles and buttons on the platform controller, as well as the emergency stop function. The status (battery level, fault code) of the entire vehicle can be obtained through the display screen on the platform controller. However, there is currently no equipment available to detect whether the corresponding platform controller can work properly. As a result, when the aerial work platform fails to operate properly, it often takes a lot of time to check whether the aerial work platform fails or the platform controller fails and cannot issue control commands correctly, which consumes a lot of time and manpower costs.

Utility Model Content

In view of the problems existing in the prior art, the utility model provides a fault detection device for a platform controller, comprising:

A programmable logic controller, connected to a number of status indicator lights;

A controller connector is connected to the programmable logic controller, and a controller of the platform to be detected is plug-connected to the controller connector;

A sensor connector, connected to the programmable logic controller, and an external sensor is plugged into the sensor connector;

A human-computer interaction panel connected to the programmable logic controller;

The programmable logic controller is integrated inside the shell, and a plurality of openings are provided on the surface of the shell, and each of the status indicator lights, the controller connector, the sensor connector, and the human-machine interaction panel is exposed from the corresponding opening.

Preferably, the platform controller to be detected includes an operating handle having multiple operating output terminals. When the platform controller to be detected is plugged into the controller connector, each of the operating output terminals is respectively connected to multiple handle signal input pins of the programmable logic controller.

Preferably, the platform controller to be tested includes an operation panel, and the operation panel includes a test start button and a test end button. When the platform controller to be tested is plugged into the controller connector, the test start pin of the programmable logic controller is connected to the test start button, and the test end pin of the programmable logic controller is connected to the test end button.

Preferably, the platform controller to be detected includes an operation panel, and the operation panel also includes a power control switch. When the platform controller to be detected is plugged into the controller connector, the power control switch is connected to the key switch input pin of the programmable logic controller.

Preferably, the platform controller to be detected also includes a microcontroller unit, which is respectively connected to a battery pack in the platform controller to be detected and a controlled motor. When the platform controller to be detected is plugged into the controller connector, the motor speed output terminal and the TV enable status terminal of the microcontroller unit are respectively connected to a motor speed detection pin and a motor enable status pin of the programmable logic controller.

Preferably, the platform controller to be detected further comprises a voltage and current detection module, wherein the first detection end of the voltage and current detection module is connected to the negative power terminal of the micro control unit, and the second to fourth detection ends of the voltage and current detection module are connected to the positive power terminal of the micro control unit;

The first detection end of the voltage and current detection module is also connected to the ground pin of the programmable logic controller;

The first to third output terminals of the voltage and current detection module are respectively connected to the voltage detection pin, the first current detection pin and the second current detection pin of the programmable logic controller.

Preferably, one end of each of the status indicator lights is connected to a plurality of indicator light output pins of the programmable logic controller in a one-to-one correspondence, and the other end of each of the status indicator lights is connected to a ground pin of the programmable logic controller.

Preferably, the external sensor is plug-connected with the corresponding sensor connector to be connected one-to-one with the multiple sensor signal receiving pins of the programmable logic controller.

Preferably, it further comprises a speaker, one end of the speaker is connected to the speaker pin of the programmable logic controller, and the other end of the speaker is connected to the ground pin of the programmable logic controller.

Preferably, a buzzer is further included, one end of the buzzer is connected to a buzzer pin of the programmable logic controller, and the other end of the buzzer is connected to a ground pin of the programmable logic controller.

The above technical solution has the following advantages or beneficial effects: through the status indicator light set on the detection device, the corresponding status indicator light is lit when the platform controller is operated, and the brightness of the status indicator light is used to determine whether the platform controller outputs an operation instruction. A visual fault detection device is provided to detect the platform controller, and a sensor connector is provided to connect other sensors for auxiliary detection. The detection result is clear at a glance, saving manpower and time.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the control system of the aerial work platform;

FIG2 is a schematic structural diagram of a fault detection device for a platform controller in a preferred embodiment of the present utility model;

FIG. 3 is a circuit diagram of a platform controller and a fault detection device in a preferred embodiment of the present utility model.

DETAILED DESCRIPTION

The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. The present invention is not limited to this embodiment, and other embodiments may also fall within the scope of the present invention as long as they conform to the purpose of the present invention.

In a preferred embodiment of the present utility model, based on the above problems existing in the prior art, a fault detection device for a platform controller is provided, as shown in FIG2 , comprising:

A programmable logic controller 1 is connected to a plurality of status indicator lights 2;

The controller connector 3 is connected to the programmable logic controller 1, and the platform controller 10 to be detected is plug-connected to the controller connector 3;

The sensor connector 4 is connected to the programmable logic controller 1, and the external sensor 20 is plugged into the sensor connector 4;

A human-machine interaction panel 5 is connected to the programmable logic controller 1;

The shell 6 , the programmable logic controller 1 is integrated inside the shell 6 , a plurality of openings 61 are opened on the surface of the shell 1 , and each status indicator light 2 , controller connector 3 , sensor connector 4 , and human-machine interaction panel 5 are exposed from the corresponding openings 61 .

In a preferred embodiment of the utility model, as shown in Figure 3, the platform controller 10 to be detected includes an operating handle 110, and the operating handle includes a plurality of operating output terminals. When the platform controller to be detected is plugged and connected with the controller connector, each operating output terminal corresponds to a plurality of handle signal input pins connected to the programmable logic controller.

In a preferred embodiment of the utility model, one end of each status indicator light is connected to a plurality of indicator light output pins of the programmable logic controller in a one-to-one correspondence, and the other end of each status indicator light is connected to a ground pin of the programmable logic controller.

Specifically, in this embodiment, when the platform controller performs actions such as rising, falling, advancing, retreating, turning left, turning right, high speed, low speed, and horn, the corresponding operation output end of the operating handle (the 1-6 pins of the operating handle are respectively connected to the I0.1-I1.0 pins of the PLC) outputs a control instruction to the detection device, and at the same time, the corresponding status indicator light (the forward, backward, left turn, right turn, rising, and falling instructions input by the 1-6 pins of the operating handle correspond to the forward, backward, left turn, right turn, rising, and falling status indicator lights connected to the Q0.6-Q1.4 pins of the PLC) will light up. By observing whether the corresponding status indicator lights (forward, backward, etc.) in Figure 2 light up normally, it can be judged whether the actions such as rising, falling, advancing, retreating, turning left, turning right, high speed, low speed, and horn of the platform controller are normal.

In a preferred embodiment of the utility model, the controller of the platform to be tested includes an operation panel 120, and the operation panel 120 includes a test start button S1 and a test end button S2. When the controller 10 of the platform to be tested is plugged and connected with the controller connector 4, the test start pin of the programmable logic controller 1 is connected to the test start button S1, and the test end pin of the programmable logic controller 1 is connected to the test end button S2.

In a preferred embodiment of the present invention, the platform controller 10 to be detected includes an operation panel 120, and the operation panel 120 also includes power control switches B and B1. When the platform controller 10 to be detected is plugged and connected to the controller connector 4, the power control switches B and B1 are connected to the key switch input pin of the programmable logic controller 1.

Specifically, when the platform controller 10 to be detected is plugged and connected to the controller connector 4, the platform controller 10 to be detected is started through the power control switch, and the detection device knows the start or shutdown state of the platform controller 10 to be detected according to the key switch input pin;

Because the device is added to detect the platform controller, a test start button S1 and a test end button S2 are added to the platform controller. The start and end of the test process of the platform controller are controlled by toggling the test start button S1 or the test end button S2.

In a preferred embodiment of the utility model, the platform controller 10 to be detected also includes a micro control unit 130, which is respectively connected to the battery pack in the platform controller 10 to be detected and the controlled motor M. When the platform controller 10 to be detected is plugged and connected to the controller connector 4, the motor speed output terminal and the TV enable status terminal of the micro control unit 130 correspond to the motor speed detection pin and the motor enable status pin of the programmable logic controller.

In a preferred embodiment of the utility model, the platform controller 10 to be detected further includes a voltage and current detection module 140, the first detection end of the voltage and current detection module 140 is connected to the negative power terminal of the micro control unit 130, and the second to fourth detection ends of the voltage and current detection module 140 are connected to the positive power terminal of the micro control unit;

The first detection end of the voltage and current detection module 140 is also connected to the ground pin GND of the programmable logic controller 1;

The first to third output terminals of the voltage and current detection module 140 are respectively connected to the voltage detection pin, the first current detection pin and the second current detection pin of the programmable logic controller 1 .

Specifically, in this embodiment, the microcontroller unit 130 and the current detection module 140 in the platform controller 10 to be detected can be connected to view the current, voltage, motor working status, motor speed and other status, and display the relevant information on the human-computer interaction panel 5 to realize the status monitoring of the motor of the aerial work platform.

In a preferred embodiment of the present invention, the external sensor 20 is plugged into the corresponding sensor connector 3 to be connected one-to-one with multiple sensor signal receiving pins of the programmable logic controller 1 (pins I1.1-I1.6 on the PLC in FIG. 3 ).

Specifically, in this embodiment, the detection device in Figure 2 only shows two sensor connectors 3. According to actual conditions, more sensor connectors 3 can be set to connect more sensors to achieve more aspects of fault detection. As shown in Figure 3, multiple sensors such as a speed sensor (which can be set on the aerial work platform to detect the speed during movement), a pressure sensor (which can be set on the aerial work platform to detect the pressure at key positions), an angle sensor (which can be set on the aerial work platform to detect whether it is tilted), a flow meter, a temperature transmitter (which can be set at the motor, electronic circuit and other positions of the aerial work platform to monitor the working temperature in real time) are connected, and the relevant information is displayed on the human-computer interaction panel 5.

In a preferred embodiment of the utility model, a speaker is also included, one end of the speaker is connected to the speaker pin of the programmable logic controller, and the other end of the speaker is connected to the ground pin of the programmable logic controller.

In a preferred embodiment of the utility model, a buzzer is also included, one end of the buzzer is connected to the buzzer pin of the programmable logic controller, and the other end of the buzzer is connected to the ground pin of the programmable logic controller.

Specifically, in this embodiment, a horn and a buzzer are provided. The horn can be used to make a sound upon receiving a whistle signal from the platform controller, indicating that the platform controller can normally issue the horn command. One of the optional functions of the buzzer is to make a sound to alert the staff when the platform controller fails.

In Figure 3, the platform controller also includes components such as a battery pack and an emergency stop switch. The platform controller is a prior art and is not the main invention of the present utility model. The specific connection circuit structure of each component inside the platform controller is shown in the figure and will not be described in detail.

The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the contents of this specification and illustrations should be included in the protection scope of the present invention.

Claims (10)

1. A fault detection device for a platform controller, comprising:

The programmable logic controller is connected with a plurality of status indicator lamps;

the controller connector is connected with the programmable logic controller, and the platform controller to be detected is connected with the controller connector;

the sensor connector is connected with the programmable logic controller, and an external sensor is connected with the sensor connector in a plugging mode;

the man-machine interaction panel is connected with the programmable logic controller;

The programmable logic controller is integrated in the shell, a plurality of openings are formed in the surface of the shell, and each status indicator lamp, the controller connector, the sensor connector and the man-machine interaction panel are exposed out of the corresponding opening.

2. The fault detection device of claim 1, wherein the platform controller to be detected comprises an operation handle, the operation handle comprises a plurality of operation output ends, and each operation output end is correspondingly connected with a plurality of handle signal input pins of the programmable logic controller when the platform controller to be detected is connected with the controller connector.

3. The fault detection device of claim 1, wherein the platform controller to be detected comprises an operation panel, the operation panel comprises a test start button and a test end button, a test start pin of the programmable logic controller is connected to the test start button, and a test end pin of the programmable logic controller is connected to the test end button when the platform controller to be detected is connected to the controller connector.

4. The fault detection device of claim 1, wherein the platform controller to be detected comprises an operation panel, and the operation panel further comprises a power control switch, wherein the power control switch is connected with a key switch input pin of the programmable logic controller when the platform controller to be detected is connected with the controller connector.

5. The fault detection device of claim 4, wherein the platform controller to be detected further comprises a micro control unit respectively connected to the battery pack and the controlled motor in the platform controller to be detected, and when the platform controller to be detected is connected to the controller connector, a motor speed output end and a motor enable state end of the micro control unit are respectively connected to a motor speed detection pin and a motor enable state pin of the programmable logic controller.

6. The fault detection device of claim 5, wherein the platform controller to be detected further comprises a voltage and current detection module, a first detection end of the voltage and current detection module is connected to a power negative terminal of the micro control unit, and second to fourth detection ends of the voltage and current detection module are connected to a power positive terminal of the micro control unit;

The first detection end of the voltage and current detection module is also connected with a grounding pin of the programmable logic controller;

And the first output end to the third output end of the voltage and current detection module are respectively and correspondingly connected with a voltage detection pin, a first current detection pin and a second current detection pin of the programmable logic controller.

7. The fault detection device according to claim 1, wherein one end of each status indicator light is connected to a plurality of indicator light output pins of the programmable logic controller in a one-to-one correspondence manner, and the other end of each status indicator light is connected to a ground pin of the programmable logic controller.

8. The fault detection device of claim 1, wherein an external sensor is connected to a corresponding sensor connector socket in one-to-one correspondence with each of a plurality of sensor signal receiving pins of the programmable logic controller.

9. The fault detection device of claim 1, further comprising a horn, one end of the horn being connected to a horn pin of the programmable logic controller, the other end being connected to a ground pin of the programmable logic controller.

10. The fault detection device of claim 1, further comprising a buzzer, wherein one end of the buzzer is connected to a buzzer pin of the programmable logic controller, and the other end is connected to a ground pin of the programmable logic controller.