Safety control method and system for the entrance and exit of a conveyor line, and an electronic device

Abstract

The present invention provides a safety control method, system and electronic device for the entrance and exit of a conveying line body, including: an input line body and a detection module arranged at a preset position at the entrance and exit of the conveying line body. The detection module is used to detect materials and personnel passing through the entrance and exit of the conveying line body, judge whether there are potential safety hazards in the conveying line body according to the detection results, and output corresponding control signals according to the judgment results to control the start and stop of the conveying line body and output relevant alarm signals. Its layout structure is simple, with strong versatility and low cost. Without changing the original equipment, through the set safety control logic, the intrinsic safety of the entrance and exit of the input line body is improved, and the personal safety of employees is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of safety control for the entrances and exits of a conveyor line body, and particularly to a safety control method, system, and electronic device for the entrances and exits of a conveyor line body. Background Art

[0002] During the process of automated upgrading and transformation of a workshop, the conveyor line body plays a crucial role. The introduction of the conveyor line body greatly reduces manual participation in transportation while reducing damage to the workshop floor, and its high-efficient conveying rhythm increases the potential for improving production efficiency. Therefore, the conveyor line body has been more and more widely used.

[0003] To ensure the personal safety of workshop employees, safety nets are usually arranged on both sides of the line body to prevent personnel from accidentally entering the moving conveyor line and causing safety accidents. However, at the input and output ports of the line body, safety nets cannot be set because materials need to enter and exit, so there is a possibility of personnel accidentally entering, and there are certain safety risks at these two positions. Therefore, there is an urgent need for a safety control device to improve the inherent safety of the entrances and exits of the conveyor line body to ensure the personal safety of workers.

[0004] Therefore, the prior art needs to be further developed. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and provide a safety control method, system, and electronic device for the entrances and exits of a conveyor line body to solve the problems existing in the prior art.

[0006] To achieve the above technical purpose, according to the first aspect of the present invention, a safety control method for the entrances and exits of a conveyor line body is provided, including:

[0007] A conveyor line body and a detection module arranged at a preset position at the entrance and exit of the conveyor line body, the detection module is used to detect materials and personnel passing through the entrance and exit of the conveyor line body, judge whether there are transportation safety hazards in the conveyor line body according to the detection results, and output corresponding control signals according to the judgment results to control the start and stop of the conveyor line body and output relevant alarm signals.

[0008] Specifically, the detection module arranged at the preset position at the entrance and exit of the conveyor line body includes:

[0009] A first entrance material detection photoelectric sensor arranged at a first preset distance inward from the conveying entrance and at a second preset distance above the conveyor line body, which is used to collect the optical signal reflected by the material and record the duration of the optical signal when the material passes through the first entrance material detection photoelectric sensor.

[0010] Specifically, the detection module arranged at the preset position at the entrance and exit of the conveyor line body further includes:

[0011] The second entrance safety detection photoelectric sensor is set at the third preset distance inward from the conveying entrance and at the fourth preset distance above the conveying line body. When the first entrance material detection photoelectric sensor collects the optical signal reflected by the material, the conveying line body is started and the second entrance safety detection photoelectric sensor is turned off. After the conveying line body is started for the first preset time, the second entrance safety detection photoelectric sensor is turned on. When the second entrance safety detection photoelectric sensor detects that a person has passed by, the conveying line body is controlled to stop and an alarm signal is output.

[0012] Specifically, the detection module set at the preset positions of the entrance and exit of the conveying line body further includes:

[0013] The third entrance safety detection photoelectric sensor is set at the first preset distance outward from the conveying entrance and at the fifth preset distance above the conveying line body. It is used to be turned on simultaneously when the second entrance safety detection photoelectric sensor is turned off after the conveying line body starts. When the third entrance safety detection photoelectric sensor detects that a person has passed by, the conveying line body is controlled to stop and an alarm signal is output.

[0014] Specifically, the detection module set at the preset positions of the entrance and exit of the conveying line body further includes:

[0015] The fourth exit material detection photoelectric sensor is set at the first preset distance inward from the conveying exit and at the second preset distance above the conveying line body. It is used to collect the optical signal reflected by the material when the material passes through the fourth exit material detection photoelectric sensor and control the conveying line body to stop.

[0016] Specifically, the detection module set at the preset positions of the entrance and exit of the conveying line body further includes:

[0017] The fifth exit safety detection photoelectric sensor is set at the first preset distance outward from the conveying exit and at the fifth preset distance above the conveying line body. It is used to be turned off simultaneously when the fourth exit material detection photoelectric sensor collects the optical signal reflected by the material and controls the conveying line body to stop, or to be turned on after the second preset time when the fourth exit material detection photoelectric sensor loses the signal. When the fifth entrance material detection photoelectric sensor detects that a person has passed by, the conveying line body is controlled to stop.

[0018] Specifically, when the fourth exit material detection photoelectric sensor does not detect the optical signal and the fifth entrance material detection photoelectric sensor detects that a person has passed by, the conveying line body is controlled to stop.

[0019] Specifically, a reset switch is further provided on one side of the third entrance safety detection photoelectric sensor. When a person accidentally passes by the third entrance safety detection photoelectric sensor and causes the conveying line body to stop, the conveying line body can be restarted through the reset switch.

[0020] According to a second aspect of the present invention, there is provided a safety control system for the entrance and exit of a conveying line body, comprising:

[0021] A detection module for detecting materials and personnel passing through the entrance and exit of the conveying line body;

[0022] A control module for judging whether there are potential safety hazards in the conveying line body according to the detection results, and outputting corresponding control signals according to the judgment results to control the start and stop of the conveying line body and output relevant alarm signals;

[0023] An execution module for controlling the start and stop of the conveying line body and outputting relevant alarm signals.

[0024] According to a third aspect of the present invention, there is provided an electronic device, comprising:

[0025] A memory; and a processor, wherein computer-readable instructions are stored on the memory, and when the computer-readable instructions are executed by the processor, the above-mentioned safety control method for the entrance and exit of the conveying line body is implemented.

[0026] The beneficial effects of the present invention are:

[0027] In view of the current problems, the present invention provides a safety control method, system and electronic device for the entrance and exit of a conveying line body, which have a simple layout structure, strong versatility, low cost, and improve the inherent safety of the entrance and exit of the conveying line body through the set safety control logic without changing the original equipment, thus ensuring the personal safety of employees. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic installation diagram of the detection module provided in a specific embodiment of the present invention;

[0029] Figure 2 is a safety control logic flow chart of the conveying line body entrance provided in a specific embodiment of the present invention;

[0030] Figure 3 is a safety control logic flow chart of the conveying line body exit provided in a specific embodiment of the present invention;

[0031] Figure 4 is a structural diagram of the safety control system for the entrance and exit of the conveying line body provided in a specific embodiment of the present invention;

[0032] Among them: 1, conveying line body; 2, second entrance safety detection photoelectric sensor; 3, third entrance safety detection photoelectric sensor; 4, first entrance material detection photoelectric sensor; 5, fifth exit safety detection photoelectric sensor; 6, fourth exit material detection photoelectric sensor; 7, conveying line body entrance; 8, conveying line body exit. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] To enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application. In addition, the directional terms mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only with reference to the directions of the accompanying drawings. Therefore, the directional terms used are for illustration rather than to limit the present invention.

[0034] The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0035] Please refer to Figures 1-3 , this embodiment provides a safety control method for the entrance and exit of a conveying line body, and the method includes:

[0036] A conveying line body 1 and a detection module arranged at a preset position at the entrance and exit of the conveying line body. The detection module is used to detect materials and personnel passing through the entrance and exit of the conveying line body 1, judge whether there are conveying safety hazards in the conveying line body according to the detection results, and output corresponding control signals according to the judgment results to control the start and stop of the conveying line body 1 and output relevant alarm signals.

[0037] Specifically, the detection module arranged at the preset position at the entrance and exit of the conveying line body includes:

[0038] A first entrance material detection photoelectric sensor arranged at a first preset distance inward from the conveying entrance and at a second preset distance above the conveying line body. The first entrance material detection photoelectric sensor is an infrared diffuse reflection photoelectric sensor, which is used to collect the optical signal reflected by the material and record the duration of the optical signal when the material passes through the first entrance material detection photoelectric sensor 4.

[0039] Preferably, the first preset distance is 100 mm and the second preset distance is 50 mm. Setting the first preset distance to 100 mm and the second preset distance to 50 mm is obtained by the technical personnel of the present invention through a large number of experiments. Since when a person passes by, it is generally rare to touch the detection range of the photoelectric sensor at this position, the detection of materials is preferably realized through a clever design, reducing the complexity of the equipment and the system.

[0040] Specifically, the detection module arranged at the preset position at the entrance and exit of the conveying line body further includes:

[0041] The second entrance safety detection photoelectric sensor 2 is set at a third preset distance inward from the conveying entrance and at a fourth preset distance above the conveying line body. The second entrance safety detection photoelectric sensor is an infrared opposed photoelectric sensor. When the first entrance material detection photoelectric sensor collects the optical signal reflected by the material, the conveying line body is started and the second entrance safety detection photoelectric sensor is turned off. After the conveying line body is started for a first preset time, the second entrance safety detection photoelectric sensor is turned on. When the second entrance safety detection photoelectric sensor detects that a person has passed by, the conveying line body is controlled to stop and an alarm signal is output.

[0042] Preferably, the third preset distance is 200 mm and the fourth preset distance is 1 m. Setting the third preset distance to 200 mm and the fourth preset distance to 1 m is obtained by the technical personnel of the present invention through a large number of experiments. Since when a person passes by, generally the detection range of the photoelectric sensor at this position will be touched, through a clever design, the detection of people is better realized, and the complexity of the equipment and the system is reduced.

[0043] It should be noted here that when the first entrance material detection photoelectric sensor collects the optical signal reflected by the material, it proves that the material is placed on the conveying line body. The conveying line body is started and the second entrance safety detection photoelectric sensor is turned off to prevent the system from misjudging due to the excessive height of the material and ensure that the material passes through. After the conveying line body is started for the first preset time, at this time, it represents that the material has reached the next conveying unit of the conveying line body. At this time, the second entrance safety detection photoelectric sensor is turned on to prevent people from passing by. After that, when the first entrance material detection photoelectric sensor has no signal or gets a signal and maintains the first preset time, and when the second entrance safety detection photoelectric sensor detects that a person has passed by, it proves that someone is trying to enter the conveying line body at this time. The conveying line body is controlled to stop and an alarm signal is output, and the alarm flashes and sounds an alarm.

[0044] Specifically, the detection module provided at the preset position of the entrance and exit of the conveying line body further includes:

[0045] The third entrance safety detection photoelectric sensor 3 is set at a first preset distance outward from the conveying entrance and at a fifth preset distance above the conveying line body. The third entrance safety detection photoelectric sensor is an infrared opposed photoelectric sensor, and is used to be turned on simultaneously when the second entrance safety detection photoelectric sensor is turned off after the conveying line body is started, and is used to control the conveying line body to stop and output an alarm signal when the third entrance safety detection photoelectric sensor detects that a person has passed by.

[0046] Preferably, the fifth preset distance is 0.5 m. The setting of the fifth preset distance to 0.5 m is obtained by the technical personnel of the present invention through a large number of experiments. Since the third inlet safety detection photoelectric sensor is arranged outside the conveying inlet, the height of the material does not need to be considered. Therefore, setting the fifth preset distance to 0.5 m can better detect personnel, and through a clever and reasonable design, the detection of personnel is better realized, reducing the complexity of the equipment and the system.

[0047] It should be noted here that when the conveying line body starts, the second inlet safety detection photoelectric sensor is closed while the third inlet safety detection photoelectric sensor is turned on to prevent personnel from entering.

[0048] Specifically, the detection module arranged at the preset positions of the inlet and outlet of the conveying line body further includes:

[0049] A fourth outlet material detection photoelectric sensor 6 arranged at a first preset distance inward from the conveying outlet and at a second preset distance above the conveying line body. The fourth outlet material detection photoelectric sensor is an infrared diffuse reflection photoelectric sensor, which is used to collect the optical signal reflected by the material when the material passes through the fourth outlet material detection photoelectric sensor and control the conveying line body to stop.

[0050] It should be noted here that the conveying line body of the present invention includes a conveying line body inlet 7 and a conveying line body outlet 8. When the material passes through the fourth outlet material detection photoelectric sensor, the optical signal reflected by the material is collected to control the conveying line body to stop, preventing the material from sliding out of the conveying line body and further improving the usability and safety of the present invention.

[0051] Specifically, the detection module arranged at the preset positions of the inlet and outlet of the conveying line body further includes:

[0052] A fifth outlet safety detection photoelectric sensor 5 arranged at a first preset distance outward from the conveying outlet and at a fifth preset distance above the conveying line body. The fifth outlet safety detection photoelectric sensor is an infrared opposed photoelectric sensor, which is used to close when the fourth outlet material detection photoelectric sensor collects the optical signal reflected by the material and controls the conveying line body to stop, or to turn on after a second preset time when the fourth outlet material detection photoelectric sensor loses the signal, and is used to control the conveying line body to stop when the fifth inlet material detection photoelectric sensor detects that a person has passed. By reasonably using the infrared diffuse reflection sensor and the infrared opposed sensor, the present invention better realizes the detection of personnel and materials within the detection range of the detection module, further improving the reliability of the detection result.

[0053] It should be noted here that when the photoelectric sensor for detecting the material at the fourth outlet collects the optical signal reflected by the material and controls the conveyor line to stop, the photoelectric sensor for safety detection at the fifth outlet is closed at the same time to prevent alarms when the staff takes out the material. After the second preset time when the photoelectric sensor for detecting the material at the fourth outlet loses the signal, the photoelectric sensor for safety detection at the fifth outlet is turned on. After the second preset time when the photoelectric sensor for detecting the material at the fourth outlet loses the signal, it proves that the material has been taken out at this time, and the photoelectric sensor for safety detection at the fifth outlet is turned on for detection to prevent people from entering.

[0054] Specifically, when the photoelectric sensor for detecting the material at the fourth outlet does not detect the optical signal and the photoelectric sensor for detecting the person at the fifth inlet detects that a person has passed by, the conveyor line is controlled to stop.

[0055] It should be noted here that when the photoelectric sensor for detecting the material at the fourth outlet does not detect the optical signal and the photoelectric sensor for detecting the signal at the fifth inlet detects the signal, it is determined that there may be a person entering the safety warning range of the conveyor line while the conveyor line is running, which may pose a great safety hazard. At this time, the conveyor line is controlled to stop. Through ingenious logic design, the complex safety monitoring problem of the conveyor line is simplified. Without complex algorithm modeling and system components, the usability and safety of the present invention are greatly improved, and the application scenario of the present invention is further expanded.

[0056] Specifically, a reset switch is further provided on one side of the photoelectric sensor for safety detection at the third inlet. When a person accidentally passes by the photoelectric sensor for safety detection at the third inlet and causes the conveyor line to stop, the conveyor line can be restarted through the reset switch.

[0057] It should be noted here that when a person accidentally passes by the photoelectric sensor for safety detection at the third inlet and causes the conveyor line to stop, the conveyor line can be restarted through the reset switch. This further improves the fault tolerance of the present invention, facilitates the recovery of the conveyor line, reduces the losses caused by the conveyor line stop due to system misjudgment or the behavior of personnel without safety hazards, and further improves the usability of the present invention.

[0058] A safety control method, system and electronic device for the entrances and exits of a conveyor line provided by the present invention have a simple layout structure, strong versatility and low cost. Without changing the original equipment, through the set safety control logic, the inherent safety of the entrances and exits of the conveyor line is improved, and the personal safety of employees is guaranteed.

[0059] Please refer to Figure 4 , the present invention provides another specific embodiment. This embodiment provides a safety control system for the entrances and exits of a conveyor line, and the system includes:

[0060] A detection module 100, configured to detect materials and personnel passing through the entrances and exits of the conveyor line;

[0061] The control module 200 is configured to determine whether there is a conveying safety hazard on the conveying line body according to the detection result, and output a corresponding control signal according to the determination result to control the start and stop of the conveying line body through the execution module 300 and output relevant alarm signals.

[0062] The execution module 300 is configured to control the start and stop of the conveying line body and output relevant alarm signals.

[0063] In a preferred embodiment, the present application further provides an electronic device, which includes:

[0064] A memory; and a processor, wherein a computer-readable instruction is stored on the memory, and when the computer-readable instruction is executed by the processor, the safety control method for the entrance and exit of the conveying line body is implemented. This computer device can be broadly a server, a terminal, or any other electronic device with necessary computing and / or processing capabilities. In one embodiment, this computer device may include a processor, a memory, a network interface, a communication interface, etc. connected through a system bus. The processor of this computer device can be used to provide necessary computing, processing, and / or control capabilities. The memory of this computer device may include a non-volatile storage medium and an internal memory. An operating system, a computer program, etc. may be stored in or on the non-volatile storage medium. The internal memory can provide an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface and the communication interface of this computer device can be used to connect and communicate with external devices through a network. When the computer program is executed by the processor, the steps of the method of the present invention are executed.

[0065] The present invention can be implemented as a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method of the embodiments of the present invention are caused to be executed. In one embodiment, the computer program is distributed on multiple computer devices or processors coupled by a network, so that the computer program is stored, accessed, and executed in a distributed manner by one or more computer devices or processors. A single method step / operation, or two or more method steps / operations, can be executed by a single computer device or processor or by two or more computer devices or processors. One or more method steps / operations can be executed by one or more computer devices or processors, and one or more other method steps / operations can be executed by one or more other computer devices or processors. One or more computer devices or processors can execute a single method step / operation, or execute two or more method steps / operations.

[0066] Those of ordinary skill in the art can understand that the method steps of the present invention can be implemented by a computer program to instruct related hardware such as a computer device or a processor. The computer program can be stored in a non-transitory computer-readable storage medium, and when the computer program is executed, the steps of the present invention are caused to be executed. Depending on the context, any reference herein to memory, storage, database, or other media may include non-volatile and / or volatile memory. Examples of non-volatile memory include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, magnetic tape, floppy disk, magneto-optical data storage device, optical data storage device, hard disk, solid state disk, etc. Examples of volatile memory include random access memory (RAM), external cache memory, etc.

[0067] The technical features described above can be combined arbitrarily. Although not all possible combinations of these technical features are described, any combination of these technical features should be considered to be covered by this specification as long as such a combination is not contradictory.

[0068] The specific embodiments of the present invention described above do not limit the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A safety control method for the entrance and exit of a conveying line body, characterized in that, it includes: a conveying line body and a detection module arranged at a preset position at the entrance and exit of the conveying line body, the detection module is used to detect materials and personnel passing through the entrance and exit of the conveying line body, judge whether there are conveying safety hazards in the conveying line body according to the detection results, and output corresponding control signals according to the judgment results to control the start and stop of the conveying line body and output relevant alarm signals; The detection module arranged at the preset position at the entrance and exit of the conveying line body includes: a first entrance material detection photoelectric sensor arranged at a first preset distance inward from the conveying entrance and at a second preset distance above the conveying line body, which is used to collect the optical signal reflected by the material and record the duration of the optical signal when the material passes through the first entrance material detection photoelectric sensor; The detection module arranged at the preset position at the entrance and exit of the conveying line body further includes: a second entrance safety detection photoelectric sensor arranged at a third preset distance inward from the conveying entrance and at a fourth preset distance above the conveying line body. When the first entrance material detection photoelectric sensor collects the optical signal reflected by the material, the conveying line body is started and the second entrance safety detection photoelectric sensor is turned off. When the conveying line body is started for the first preset time, the second entrance safety detection photoelectric sensor is turned on. When the second entrance safety detection photoelectric sensor detects that a person has passed by, the conveying line body is controlled to stop and an alarm signal is output.

2. The safety control method for the entrance and exit of a conveying line body according to claim 1, characterized in that, the detection module arranged at the preset position at the entrance and exit of the conveying line body further includes: a third entrance safety detection photoelectric sensor arranged at a first preset distance outward from the conveying entrance and at a fifth preset distance above the conveying line body, which is used to be turned on simultaneously when the second entrance safety detection photoelectric sensor is turned off after the conveying line body is started, and is used to control the conveying line body to stop and output an alarm signal when the third entrance safety detection photoelectric sensor detects that a person has passed by.

3. The safety control method for the entrance and exit of a conveying line body according to claim 2, characterized in that, the detection module arranged at the preset position at the entrance and exit of the conveying line body further includes: a fourth exit material detection photoelectric sensor arranged at a first preset distance inward from the conveying exit and at a second preset distance above the conveying line body, which is used to collect the optical signal reflected by the material when the material passes through the fourth exit material detection photoelectric sensor and control the conveying line body to stop.

4. The safety control method for the entrance and exit of a conveying line body according to claim 3, characterized in that, the detection module arranged at the preset position at the entrance and exit of the conveying line body further includes: a fifth exit safety detection photoelectric sensor arranged at a first preset distance outward from the conveying exit and at a fifth preset distance above the conveying line body, which is used to be turned off simultaneously when the fourth exit material detection photoelectric sensor collects the optical signal reflected by the material and controls the conveying line body to stop, or to be turned on after the fourth exit material detection photoelectric sensor loses the signal for the second preset time, and is used to control the conveying line body to stop when the fifth entrance material detection photoelectric sensor detects that a person has passed by.

5. The safety control method for the entrance and exit of the conveyor line according to claim 4, characterized in that, when the fourth exit material detection optoelectronic sensor does not detect a light signal and the fifth entrance material detection optoelectronic sensor detects that a person has passed by, the conveyor line is controlled to stop.

6. The safety control method for the entrance and exit of the conveyor line according to claim 2, characterized in that, a reset switch is further provided on one side of the third entrance safety detection optoelectronic sensor. When a person accidentally passes by the third entrance safety detection optoelectronic sensor and causes the conveyor line to stop, the conveyor line can be restarted through the reset switch.

7. A safety control system for the entrance and exit of a conveyor line, characterized in that, adopting the safety control method for the entrance and exit of the conveyor line according to any one of claims 1-6, including: a detection module for detecting materials and personnel passing through the entrance and exit of the conveyor line; a control module for judging whether there are safety hazards in the conveyor line according to the detection results, and outputting corresponding control signals according to the judgment results to control the start and stop of the conveyor line and output relevant alarm signals; an execution module for controlling the start and stop of the conveyor line and outputting relevant alarm signals.

8. An electronic device, characterized in that, comprising: a memory; and a processor, wherein computer-readable instructions are stored on the memory, and when the computer-readable instructions are executed by the processor, the safety control method for the entrance and exit of the conveyor line according to any one of claims 1 to 6 is implemented.

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