A port crane communication device and method with anti-interference function

Abstract

The present invention belongs to the field of port cranes, and specifically discloses a port crane communication device and method with anti-interference function, including a communication controller, a first optical fiber repeater, and a second optical fiber repeater; the communication controller and the first optical fiber repeater are arranged in the driver's cab of the crane, and the second optical fiber repeater is arranged on the upper rack of the sling; the communication controller is connected to the first optical fiber repeater through a first AS-i flat cable, the first optical fiber repeater is connected to the second optical fiber repeater through an AS-i optical fiber cable, and the second optical fiber repeater is connected to a terminal device through a second AS-i flat cable. The present invention transmits signals through optical fiber repeaters, avoids the influence of electromagnetic interference and other factors on communication signals, and improves the stability and reliability of communication.

Description

Technical Field

[0001] The invention belongs to the field of port cranes, and in particular relates to a port crane communication device and method with anti-interference function. Background Art

[0002] As the main link of the comprehensive logistics and transportation network, the function of the port has evolved from traditional logistics handling to comprehensive logistics loading and unloading. Port cranes play an important role in port terminal loading and unloading operations. However, in the long-term use process, portal cranes are prone to various faults due to their complex structure and frequent operations, especially those caused by electromagnetic influence.

[0003] Traditional crane communication devices mostly use wireless communication or ordinary cable connection methods. However, the port environment is complex and changeable, with a large amount of electromagnetic interference, metal structure shielding, and frequent physical movement. For example, many electrical equipment such as large lifting equipment and loading and unloading machinery are running intensively. These equipment will generate a large amount of electromagnetic radiation when working. At the same time, there may be external electromagnetic interference sources such as high-voltage transmission lines and wireless communication base stations around the port. In addition, the port may also be affected by natural electromagnetic phenomena such as lightning, which may cause communication signals to be unstable or even interrupted, thereby affecting the normal operation and work safety of the crane.

[0004] Especially in the communication between the spreader and the crane cab, due to the long distance and the presence of multiple interference sources, traditional communication methods often cannot meet the requirements of high reliability and real-time performance. In addition, with the improvement of port automation and intelligence, higher requirements are placed on the anti-interference ability, data transmission speed and stability of the crane communication system. Summary of the invention

[0005] To solve the above problems, the present invention provides a port crane communication device and method with anti-interference function, which transmits signals through optical fiber repeaters to avoid the influence of electromagnetic interference and other factors on communication signals, thereby improving the stability and reliability of communication.

[0006] In a first aspect, the technical solution of the present invention provides a port crane communication device with anti-interference function, including a communication controller, a first fiber optic repeater, and a second fiber optic repeater; the communication controller and the first fiber optic repeater are arranged in the driver's cab of the crane, and the second fiber optic repeater is arranged on the upper frame of the sling; the communication controller is connected to the first fiber optic repeater through a first AS-i flat cable, the first fiber optic repeater is connected to the second fiber optic repeater through an AS-i fiber optic cable, and the second fiber optic repeater is connected to the terminal device through a second AS-i flat cable.

[0007] In an optional embodiment, the device further includes a communication controller power supply, which is disposed in the driver's cab of the crane and connected to the communication controller to supply power to the communication controller.

[0008] In an optional embodiment, the communication controller is a programmable logic controller.

[0009] In an optional embodiment, the device further comprises a first ASI power supply, which is arranged in the driver's cab of the crane and connected to the first AS-i flat cable to supply power to the first AS-i flat cable.

[0010] In an optional embodiment, the device further comprises a second ASI power supply, which is arranged on the upper frame of the lifting device and connected to the second AS-i flat cable to supply power to the second AS-i flat cable.

[0011] In an optional embodiment, the AS-i fiber optic cable includes a first AS-i fiber optic cable portion and a second AS-i fiber optic cable portion, wherein the first AS-i fiber optic cable portion is disposed in a driver's cab of the crane, and the second AS-i fiber optic cable portion is disposed in a spreader cable.

[0012] In a second aspect, the technical solution of the present invention provides a port crane communication method with anti-interference function, comprising the following steps: Install a communication controller and a first optical fiber repeater in a driver's cab of the crane, and connect the communication controller and the first optical fiber repeater via a first AS-i flat cable; Installing a second optical fiber repeater on the upper frame of the hanger, connecting the first optical fiber repeater to the second optical fiber repeater through an AS-i optical fiber cable, and connecting the second optical fiber repeater to the terminal device through a second AS-i flat cable; The terminal device collects data and transmits it to the second fiber optic repeater via the second AS-i flat cable. The second fiber optic repeater transmits the data to the first fiber optic repeater via the AS-i fiber optic cable. The first fiber optic repeater transmits the data to the communication controller via the first AS-i flat cable, thereby realizing communication between the communication controller in the crane's driver's cab and the terminal device on the hoisting device rack.

[0013] In an optional embodiment, the communication controller is a programmable logic controller.

[0014] The present invention provides a port crane communication device and method with anti-interference function, which has the following beneficial effects compared with the prior art: a communication controller and a first optical fiber repeater are arranged in the driver's cab of the crane, a second optical fiber repeater is arranged on the upper frame of the hoist, and the first optical fiber repeater and the second optical fiber repeater are connected through an AS-i optical fiber cable to realize signal transmission. The present invention constructs an efficient and stable communication link through the arrangement of the first optical fiber repeater and the second optical fiber repeater, and the connection between them through the AS-i optical fiber cable, enhances the anti-interference ability of the entire communication system, ensures stable communication in a complex and changeable port environment, and can effectively avoid the influence of electromagnetic interference and metal structure shielding on communication signals, thereby improving the stability and reliability of communication. At the same time, optical fiber transmission has the characteristics of fast speed and large capacity. Compared with traditional wireless communication or ordinary cable connection methods, the present invention can support higher data transmission speeds and meet the high requirements of port automation and intelligence for communication systems. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic structural diagram of a port crane communication device with anti-interference function provided by an embodiment of the present invention.

[0016] Figure 2 It is a structural schematic diagram of a port crane communication device with anti-interference function provided by another embodiment of the present invention.

[0017] Figure 3 It is a flow chart of a port crane communication method with anti-interference function provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0020] In the description of this specification, the terms "include", "including", "have", "contain", etc. are all open terms, which mean including but not limited to. The descriptions with reference to the terms "one embodiment", "a specific embodiment", "some embodiments", "for example", etc. mean that the specific features, structures or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The order of steps involved in each embodiment is used to schematically illustrate the implementation of the present invention, and the order of steps is not limited and can be appropriately adjusted as needed.

[0021] In view of the current communication between the hoisting equipment frame and the crane cab, it is difficult to meet the requirements of high reliability and real-time performance due to the long distance and the existence of multiple interference sources. The present invention provides a port crane communication device with anti-interference function, which transmits signals through optical fiber repeaters to avoid the influence of electromagnetic interference and other factors on communication signals, thereby improving the stability and reliability of communication.

[0022] A specific traditional communication method is to use ASI signals to achieve communication between the crane's cab and the hoisting frame. However, ASI signals are usually low-voltage signals with relatively weak anti-interference capabilities. In a complex electromagnetic environment, weak ASI signals are more susceptible to external electromagnetic fields. When the transmission line is long, the signal is easily affected by the surrounding electromagnetic environment during transmission. Long lines increase the possibility of receiving external interference. Nearby high-power electrical equipment, such as motors and inverters, will generate strong electromagnetic fields during operation, which may interfere with ASI signals. Communication equipment with strong electromagnetic radiation, such as radio stations and mobile phone base stations, may also interfere with the ASI system. The current changes in the power line will generate a magnetic field. When the ASI line is close to the power line, it is easily interfered.

[0023] The port crane communication device with anti-interference function provided by the present invention adopts optical cable to replace traditional cable transmission to avoid electromagnetic interference to communication. Optical cable communication has the following advantages: 1. It is not affected by electromagnetic interference. The optical fiber medium itself is a natural electrical insulating material. It will not generate current or voltage due to electromagnetic induction, so it will not be affected by external electromagnetic interference. Regardless of the presence of strong magnetic fields and electric fields in the surrounding area, such as electromagnetic fields generated by high-voltage transmission lines and large electrical equipment, the optical signal in the optical cable can be stably transmitted without signal distortion, attenuation or bit errors. When the optical signal propagates in the optical fiber medium, no electromagnetic radiation is generated, which means that the optical cable will not become an electromagnetic interference source like traditional metal cables to interfere with other nearby electronic devices, effectively solving the electromagnetic compatibility problem. 2. It can still work stably in harsh electromagnetic environments. Whether in industrial environments with severe electromagnetic interference, such as factory workshops, power substations, etc., or in urban environments with complex electromagnetic signals, the optical cable can maintain good communication performance. Even strong electromagnetic interference generated in natural environments such as thunder and lightning weather will not affect the communication of the optical cable, which makes the optical cable have high reliability in various complex environments. 3. High signal transmission quality. Electromagnetic interference can cause noise and attenuation in electrical signals in traditional cables, thus affecting the signal transmission quality. Optical cables are not subject to electromagnetic interference, and their optical signal transmission has a high signal-to-noise ratio and low signal distortion, which can ensure high-quality signal transmission. They are especially suitable for occasions with high requirements for signal transmission quality, such as high-definition video transmission, high-speed data communication, etc. 4. Long service life. Electromagnetic interference may damage the insulation layer and conductor of traditional cables, accelerating the aging and damage of the cables. Optical cables have good corrosion resistance and aging resistance, are not affected by electromagnetic interference, and usually have a longer service life than traditional cables, reducing the frequency of maintenance and replacement and reducing overall costs.

[0024] Figure 1 Schematic diagram of the structure of a port crane communication device with anti-interference function provided by an embodiment of the present invention. Figure 1 As shown, the device includes a communication controller, a first optical fiber repeater, and a second optical fiber repeater.

[0025] The communication controller and the first optical fiber repeater are arranged in the driver's cab of the crane, and the second optical fiber repeater is arranged on the upper frame of the spreader. In the driver's cab of the crane, the communication controller is connected to the first optical fiber repeater through the first AS-i flat cable, and on the upper frame of the spreader, the second optical fiber repeater is connected to the terminal device through the second AS-i flat cable, and between the driver's cab of the crane and the upper frame of the spreader, the first optical fiber repeater is connected to the second optical fiber repeater through the AS-i optical fiber cable. The terminal device collects data and transmits it to the second optical fiber repeater through the second AS-i flat cable, and the second optical fiber repeater transmits the data to the first optical fiber repeater through the AS-i optical fiber cable, and the first optical fiber repeater transmits the data to the communication controller through the first AS-i flat cable, so as to realize the communication between the communication controller in the driver's cab of the crane and the terminal device on the upper frame of the spreader.

[0026] In this embodiment, a communication controller and a first optical fiber repeater are arranged in the driver's cab of the crane, and a second optical fiber repeater is arranged on the upper frame of the hoist. The first optical fiber repeater and the second optical fiber repeater are connected by an AS-i optical fiber cable to realize signal transmission. The present invention constructs an efficient and stable communication link through the arrangement of the first optical fiber repeater and the second optical fiber repeater, and the connection between them by the AS-i optical fiber cable, enhances the anti-interference ability of the entire communication system, ensures stable communication in a complex and changeable port environment, and can effectively avoid the influence of electromagnetic interference and metal structure shielding on communication signals, thereby improving the stability and reliability of communication. At the same time, optical fiber transmission has the characteristics of fast speed and large capacity. Compared with traditional wireless communication or ordinary cable connection methods, the present invention can support higher data transmission speeds and meet the high requirements of port automation and intelligence for communication systems. Figure 2 It is a structural schematic diagram of a port crane communication device with anti-interference function provided by an embodiment of the present invention, including a communication controller, a first optical fiber repeater, a second optical fiber repeater, a communication controller power supply, a first ASI power supply, and a second ASI power supply.

[0027] The communication controller, the first optical fiber repeater, the communication controller power supply, and the first ASI power supply are arranged in the driver's cab of the crane, and the second optical fiber repeater and the second ASI power supply are arranged on the upper frame of the hoist.

[0028] In the driver's cab of the crane, the communication controller is connected to the first optical fiber repeater through the first AS-i flat cable, the communication controller power supply is connected to the communication controller to supply power to the communication controller, and the first ASI power supply is connected to the first AS-i flat cable to supply power to the first AS-i flat cable. In this embodiment, the communication controller and the first AS-i flat cable are supplied with power by the communication controller power supply and the first ASI power supply respectively, thereby realizing stable power supply of the components.

[0029] In an optional embodiment, the communication controller is a programmable logic controller, namely, a PLC.

[0030] On the hanger, the second optical fiber repeater is connected to the terminal device through the second AS-i flat cable, and the second ASI power supply is connected to the second AS-i flat cable to supply power to the second AS-i flat cable. In this embodiment, the second AS-i flat cable is supplied with power by the second ASI power supply to achieve stable power supply of the components.

[0031] Between the driver's cab of the crane and the upper frame of the spreader, the first fiber optic repeater is connected to the second fiber optic repeater through an AS-i fiber optic cable. In an optional embodiment, the AS-i fiber optic cable includes a first AS-i fiber optic cable portion and a second AS-i fiber optic cable portion, the first AS-i fiber optic cable portion is arranged in the driver's cab of the crane, and the second AS-i fiber optic cable portion is arranged in the spreader vertical cable, so as to realize the communication between the spreader PLC and the spreader. Specifically, the terminal device collects data and transmits it to the second fiber optic repeater through the second AS-i flat cable, the second fiber optic repeater transmits the data to the first fiber optic repeater through the AS-i fiber optic cable, and the first fiber optic repeater transmits the data to the communication controller through the first AS-i flat cable, so as to realize the communication between the communication controller in the driver's cab of the crane and the terminal device on the upper frame of the spreader.

[0032] In this embodiment, a communication controller and a first optical fiber repeater are arranged in the driver's cab of the crane, and a second optical fiber repeater is arranged on the upper frame of the hoist. The first optical fiber repeater and the second optical fiber repeater are connected by an AS-i optical fiber cable to realize signal transmission. The present invention constructs an efficient and stable communication link through the arrangement of the first optical fiber repeater and the second optical fiber repeater, and the connection between them by the AS-i optical fiber cable, enhances the anti-interference ability of the entire communication system, ensures stable communication in a complex and changeable port environment, and can effectively avoid the influence of electromagnetic interference and metal structure shielding on communication signals, thereby improving the stability and reliability of communication. At the same time, optical fiber transmission has the characteristics of fast speed and large capacity. Compared with traditional wireless communication or ordinary cable connection methods, the present invention can support higher data transmission speeds and meet the high requirements of port automation and intelligence for communication systems.

[0033] An embodiment of a port crane communication device with anti-interference function is described in detail above. Based on the port crane communication device with anti-interference function described in the above embodiment, an embodiment of the present invention also provides a port crane communication method with anti-interference function corresponding to the device.

[0034] Figure 3 : is a flow chart of a port crane communication method with anti-interference function provided by an embodiment of the present invention. Figure 3 As shown, the method includes the following steps.

[0035] S1, installing a communication controller and a first optical fiber repeater in a driver's cab of a crane, and connecting the communication controller and the first optical fiber repeater via a first AS-i flat cable.

[0036] S2, installing a second optical fiber repeater on the upper frame of the hanger, connecting the first optical fiber repeater with the second optical fiber repeater through an AS-i optical fiber cable, and connecting the second optical fiber repeater with the terminal device through a second AS-i flat cable.

[0037] S3, the terminal device collects data and transmits it to the second fiber optic repeater via the second AS-i flat cable. The second fiber optic repeater transmits the data to the first fiber optic repeater via the AS-i fiber optic cable. The first fiber optic repeater transmits the data to the communication controller via the first AS-i flat cable, thereby realizing the communication between the communication controller in the driver's cab of the crane and the terminal device on the hoisting device rack.

[0038] Wherein, the communication controller is a programmable logic controller.

[0039] The port crane communication method with anti-interference function of this embodiment is implemented based on the aforementioned port crane communication method with anti-interference function. Therefore, the specific implementation method of this method can be seen in the embodiment part of the port crane communication device with anti-interference function in the previous text. Therefore, its specific implementation method can refer to the description of the corresponding embodiments of each part, which will not be elaborated here.

[0040] In addition, since the port crane communication method with anti-interference function of this embodiment is implemented based on the aforementioned port crane communication method with anti-interference function, its function corresponds to that of the above-mentioned device and will not be described in detail here.

[0041] The above disclosure is only a preferred embodiment of the present invention, but the present invention is not limited thereto. Any non-creative changes that can be thought of by a person skilled in the art, as well as several improvements and modifications made without departing from the principle of the present invention, should fall within the protection scope of the present invention.

Claims

1. A port crane communication device with anti-interference function, characterized in that: It includes a communication controller, a first optical fiber repeater, and a second optical fiber repeater; the communication controller and the first optical fiber repeater are arranged in the driver's cab of the crane, and the second optical fiber repeater is arranged on the upper frame of the sling; the communication controller is connected to the first optical fiber repeater through a first AS-i flat cable, the first optical fiber repeater is connected to the second optical fiber repeater through an AS-i optical fiber cable, and the second optical fiber repeater is connected to the terminal device through a second AS-i flat cable.

2. The port crane communication device with anti-interference function according to claim 1 is characterized in that: The device also includes a communication controller power supply, which is arranged in the driver's cab of the crane and connected to the communication controller to supply power to the communication controller.

3. The port crane communication device with anti-interference function according to claim 1 or 2, characterized in that: The communication controller is a programmable logic controller.

4. The port crane communication device with anti-interference function according to claim 1, characterized in that: The device also includes a first ASI power supply, which is arranged in the driver's cab of the crane and connected to the first AS-i flat cable to supply power to the first AS-i flat cable.

5. The port crane communication device with anti-interference function according to claim 1, characterized in that: The device also includes a second AS-i power supply, which is arranged on the upper frame of the sling and connected to the second AS-i flat cable to supply power to the second AS-i flat cable.

6. The port crane communication device with anti-interference function according to claim 1, characterized in that: The AS-i fiber optic cable includes a first AS-i fiber optic cable portion and a second AS-i fiber optic cable portion. The first AS-i fiber optic cable portion is arranged in the operator's cab of the crane, and the second AS-i fiber optic cable portion is arranged in the spreader cable.

7. A port crane communication method with anti-interference function, characterized in that: The following steps are involved: Install a communication controller and a first optical fiber repeater in a driver's cab of the crane, and connect the communication controller and the first optical fiber repeater via a first AS-i flat cable; Installing a second optical fiber repeater on the upper frame of the hanger, connecting the first optical fiber repeater to the second optical fiber repeater through an AS-i optical fiber cable, and connecting the second optical fiber repeater to the terminal device through a second AS-i flat cable; The terminal device collects data and transmits it to the second fiber optic repeater via the second AS-i flat cable. The second fiber optic repeater transmits the data to the first fiber optic repeater via the AS-i fiber optic cable. The first fiber optic repeater transmits the data to the communication controller via the first AS-i flat cable, thereby realizing communication between the communication controller in the crane's driver's cab and the terminal device on the hoisting device rack.

8. The port crane communication method with anti-interference function according to claim 7, characterized in that: The communication controller is a programmable logic controller.

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