Lifting platform personnel monitoring start-stop system and start-stop method

Abstract

The invention discloses a lifting platform personnel monitoring start-stop system and start-stop method, the lifting platform personnel monitoring start-stop system comprises an industrial camera, a PLC and a main power supply, the output end of the industrial camera is connected with the input end of an image acquisition card, the output end of the image acquisition card is connected with the input end of the PLC, and the output end of the PLC is connected with a driving mechanism of a lifting platform. According to the invention, a real-time image on a lifting platform is collected through a camera; judging whether a person exists on the lifting platform or not; when it is detected that people, electric vehicles or dangerous goods exist on the lifting platform, the lifting platform is controlled to stop working, and meanwhile the alarm gives an alarm; when it is detected that no personnel, electric vehicles or dangerous goods are on the lifting platform, the lifting platform continues to work, and meanwhile the alarm stops alarming; according to the invention, personnel are prevented from using the goods elevator illegally, and the problem of casualties is solved.

Description

Technical Field

[0001] This invention relates to the field of safety system technology for lifting platforms, specifically a personnel monitoring start-stop system and start-stop method for lifting platforms. Background Technology

[0002] Lifts, also known as lifting work platforms, are multi-functional lifting machinery and equipment widely used in factory maintenance, industrial installation, equipment repair, property management, warehouses, aviation, airports, ports, 4S shops, stations, machinery, chemical, pharmaceutical, electronics, power and other high-altitude equipment installation and repair. Currently, lifts are frequently used in scenarios involving the handling of goods at a certain height.

[0003] Existing freight elevators mainly place goods onto the lifting platform and control the platform to rise to a designated height. When using freight elevators in factories, people and goods need to be separated. However, some workers, for convenience, ride the freight elevator directly with the goods. When the elevator falls unexpectedly, it can cause injury or death to personnel. To solve the above technical problems, we propose a personnel monitoring start-stop system and start-stop method for lifting platforms. Summary of the Invention

[0004] The purpose of this invention is to provide a personnel monitoring start-stop system and start-stop method for a lifting platform, so as to solve the problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a personnel monitoring start-stop system for a lifting platform, comprising an industrial camera, a PLC, and a main power supply, wherein the output end of the industrial camera is connected to the input end of an image acquisition card, the output end of the image acquisition card is connected to the input end of the PLC, and the output end of the PLC is connected to the drive mechanism of the lifting platform.

[0006] Preferably, it also includes a backup power supply, the output of which is connected to the input of the PLC.

[0007] Preferably, it also includes an alarm, and the output terminal of the PLC is connected to the input terminal of the alarm.

[0008] Preferably, the alarm is an audible and visual alarm.

[0009] A method for the safe start / stop of a lifting platform in case of personnel intrusion, using the aforementioned lifting platform personnel monitoring start / stop system, includes the following steps:

[0010] S1. Installation of the camera;

[0011] S2. Image Acquisition: Real-time images of the lifting platform are acquired via a camera;

[0012] S3. Identification of personnel, electric vehicles, and hazardous materials: Determine whether there are personnel, electric vehicles, or hazardous materials on the lifting platform;

[0013] S4. Start and stop of the lifting platform: When personnel, electric vehicles or dangerous goods are detected on the lifting platform, the lifting platform will stop working and the alarm will sound; when no personnel, electric vehicles or dangerous goods are detected on the lifting platform, the lifting platform will continue to work and the alarm will stop sounding.

[0014] Preferably, in step S1, the camera is installed at a downward tilt of 15°-30° to ensure that the camera's shooting area completely covers the lifting platform area.

[0015] Compared with the prior art, the beneficial effects of the present invention are: real-time images of the lifting platform are captured by a camera; it is determined whether there are personnel on the lifting platform; when personnel, electric vehicles or dangerous goods are detected on the lifting platform, the lifting platform is controlled to stop working and the alarm is sounded at the same time; when no personnel, electric vehicles or dangerous goods are detected on the lifting platform, the lifting platform continues to work and the alarm stops sounding at the same time; this application avoids the unauthorized use of freight elevators by personnel and solves the problem of personnel injury and death. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0019] Please see Figure 1In this embodiment of the invention, a personnel monitoring start / stop system for a lifting platform includes an industrial camera, a PLC, and a main power supply. The output terminal of the industrial camera is connected to the input terminal of an image acquisition card, the output terminal of the image acquisition card is connected to the input terminal of the PLC, and the output terminal of the PLC is connected to the drive mechanism of the lifting platform (and connected to an emergency stop signal).

[0020] Preferably, it also includes a backup power supply, the output of which is connected to the input of the PLC.

[0021] Preferably, it also includes an alarm, and the output terminal of the PLC is connected to the input terminal of the alarm.

[0022] Preferably, the alarm is an audible and visual alarm.

[0023] A method for the safe start / stop of a lifting platform in case of personnel intrusion, using the aforementioned lifting platform personnel monitoring start / stop system, includes the following steps:

[0024] S1. Camera installation: The camera should be installed at a downward tilt of 15°-30° to ensure that the camera's shooting area completely covers the lifting platform area.

[0025] S2. Image Acquisition: Real-time images of the lifting platform are acquired via a camera;

[0026] S3. Identification of personnel, electric vehicles, and hazardous materials: Determine whether there are personnel, electric vehicles, or hazardous materials (such as gas cylinders) on the lifting platform;

[0027] S4. Start and stop of the lifting platform: When personnel, electric vehicles or dangerous goods are detected on the lifting platform, the lifting platform will stop working and the alarm will sound; when no personnel, electric vehicles or dangerous goods are detected on the lifting platform, the lifting platform will continue to work and the alarm will stop sounding.

[0028] The working principle of this invention is as follows: real-time images of the lifting platform are captured by a camera; it is determined whether there are personnel on the lifting platform; when personnel, electric vehicles, or dangerous goods are detected on the lifting platform, the lifting platform is controlled to stop working and the alarm is sounded at the same time; when no personnel, electric vehicles, or dangerous goods are detected on the lifting platform, the lifting platform continues to work and the alarm stops sounding at the same time.

[0029] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A personnel monitoring start / stop system for a lifting platform, characterized in that: The system includes an industrial camera, a PLC, and a main power supply. The output of the industrial camera is connected to the input of an image acquisition card, the output of the image acquisition card is connected to the input of the PLC, and the output of the PLC is connected to the drive mechanism of the lifting platform.

2. The personnel monitoring start / stop system for a lifting platform according to claim 1, characterized in that: It also includes a backup power supply, the output of which is connected to the input of the PLC.

3. The personnel monitoring start / stop system for a lifting platform according to claim 1, characterized in that: It also includes an alarm, with the output of the PLC connected to the input of the alarm.

4. The personnel monitoring start / stop system for a lifting platform according to claim 3, characterized in that: The alarm is an audible and visual alarm.

5. A method for the safe start-stop of a lifting platform in case of personnel intrusion, characterized in that: The lifting platform personnel monitoring start / stop system according to any one of claims 1-4 includes the following steps: S1. Installation of the camera; S2. Image Acquisition: Real-time images of the lifting platform are acquired via a camera; S3. Identification of personnel, electric vehicles, and hazardous materials: Determine whether there are personnel, electric vehicles, or hazardous materials on the lifting platform; S4. Start and stop of the lifting platform: When personnel, electric vehicles or dangerous goods are detected on the lifting platform, the lifting platform will stop working and the alarm will sound; when no personnel, electric vehicles or dangerous goods are detected on the lifting platform, the lifting platform will continue to work and the alarm will stop sounding.

6. The method for safe start-stop of a lifting platform in case of personnel intrusion as described in claim 5, characterized in that: The camera in S1 is installed at a vertical downward tilt of 15°-30° to ensure that the camera's shooting area completely covers the lifting platform area.

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