A remote monitoring system for a door operator

Abstract

This invention relates to the field of port machinery electrical control technology, and discloses a remote monitoring system for gantry cranes, comprising: electrical control devices for one or more gantry cranes; a remote monitoring service station located on the ground; and a wireless communication device including one or more wireless communication transmitters installed on the gantry cranes and a wireless communication receiver located on the ground. Each wireless communication transmitter is connected to one of the electrical control devices via a signal line, and the wireless communication receiver is connected to the remote monitoring service station via a signal line. Each electrical control device transmits real-time status information of the gantry cranes to the remote monitoring service station through the wireless communication receiver and its own wireless communication transmitter. The remote monitoring service station displays the real-time status information of each gantry crane. The remote monitoring system of this application can monitor the real-time status information of each gantry crane on the ground and assist in unified scheduling and management, thereby improving management efficiency.

Description

Technical Field

[0001] This invention relates to the field of electrical control technology for port machinery, and specifically to a remote monitoring system for gantry cranes. Background Technology

[0002] Currently, the monitoring of traditional port machinery (such as gantry cranes) (operating status parameters, travel position, slewing angle, boom angle, lifting weight, wind speed and direction, fault signals, etc.) can only be displayed on a touchscreen in the operator's cab. The touchscreen works by reading information from the electrical control unit (PLC) and displaying it on the screen for the operator to view.

[0003] However, when a port has multiple gantry cranes, the touchscreens in the cabs of each gantry crane displaying their respective statuses are clearly insufficient to meet the needs of unified monitoring and assisted scheduling.

[0004] Therefore, those skilled in the art urgently need to design a system that can uniformly monitor multiple gantry machines. Summary of the Invention

[0005] This application provides a remote monitoring system for gantry cranes, which can monitor the real-time status information of each gantry crane from the ground and assist in unified scheduling and management, thereby improving management efficiency.

[0006] This application discloses a remote monitoring system for gantry cranes, comprising: Electrical control device for one or more gantry cranes; Remote monitoring service stations are located on the ground. The wireless communication device includes one or more wireless communication transmitters installed on the gantry crane and one wireless communication receiver located on the ground. Each wireless communication transmitter is connected to one of the electrical control devices via a signal line, and the wireless communication receiver is connected to the remote monitoring service station via a signal line. Each electrical control device is used to transmit the real-time status information of the gantry crane to the remote monitoring service station through the wireless communication receiver and its own wireless communication transmitter. The remote monitoring service station displays the real-time status information of each gantry crane.

[0007] In one embodiment, in conjunction with the above technical solutions, the electrical control device is used to collect real-time status information of the gantry crane. The real-time status information of the gantry crane includes operating status parameters, travel position, slewing angle, boom angle, lifting weight, wind speed and direction, and fault signals.

[0008] In one embodiment, in conjunction with the above technical solutions, the operating status parameters of the gantry crane include the voltage, current, and frequency of the frequency converters of the hoisting mechanism, luffing mechanism, slewing mechanism, and traveling mechanism of the gantry crane.

[0009] In one embodiment, in conjunction with the above technical solutions, the remote monitoring system further includes a plurality of first absolute encoders disposed on the driven wheel of the traveling mechanism of the gantry crane, the first absolute encoders communicating with an electrical control device. The electrical control device is used to calculate the operating displacement of the gantry crane based on the data from the first absolute encoder and the size parameters of the driven wheel.

[0010] In one embodiment, in conjunction with the above technical solutions, the remote monitoring system further includes a plurality of second absolute encoders disposed on the slewing mechanism of the gantry crane, the second absolute encoders communicating with the electrical control device; The electrical control device is used to calculate the slewing angle of the gantry crane based on the data from the second absolute encoder and the slewing radius of the slewing mechanism; The tilt sensor on the boom of the gantry crane communicates with the electrical control unit.

[0011] In one embodiment, in conjunction with the above technical solutions, the electrical control device is used to obtain the lifting weight through the overload limiter of the gantry crane, and also to obtain wind speed and direction data through the anemometer of the gantry crane.

[0012] In one embodiment, in conjunction with the above technical solutions, the wireless communication transmitter and the wireless communication receiver each include an industrial-grade split wireless bridge and two antennas.

[0013] In one embodiment, the wireless communication transmitter comprises a 5.8GHz, 2400M industrial-grade split wireless bridge and two 5.8G, 15dBi dual-polarized omnidirectional antennas. The wireless communication receiver consists of a 5.8GHz, 2400M industrial-grade split wireless bridge and two 5.8G, 19dBi, 120° dual-polarized sector antennas.

[0014] In one embodiment, in conjunction with the above technical solutions, the remote monitoring service station is composed of an industrial control computer, which is used to display the gantry crane's operating status parameters, traveling position, slewing angle, boom angle, lifting weight, wind speed and direction, and fault signals.

[0015] In one embodiment, in conjunction with the above technical solutions, the remote monitoring service station has a display screen, which is used to display the real-time status information of each door station in a split-screen manner through configuration.

[0016] The beneficial effects of the technical solutions provided in this application include at least the following: The remote monitoring system of this application employs wireless communication technology. Each electrical control device transmits the real-time status information of the gantry crane to the remote monitoring service station via a wireless communication receiver and its own wireless communication transmitter. The remote monitoring service station can monitor and display the real-time status information of each gantry crane on the ground and make unified scheduling and management decisions based on this information, which is beneficial to improving the management efficiency of multiple gantry cranes. The remote monitoring system of this application uses wireless bridge communication, achieving a one-time investment with no subsequent communication traffic costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the remote monitoring system provided in this application.

[0019] In the picture: 1. Electrical control device; 2. Remote monitoring service station; 3. Wireless communication device; 31. Wireless communication transmitter; 32. Wireless communication receiver. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0021] This application provides a remote monitoring system for gantry cranes, which can monitor the real-time status information of each gantry crane from the ground and assist in unified scheduling and management, thereby improving management efficiency.

[0022] Traditionally, gantry crane monitoring information can only be displayed on a touchscreen in the operator's cab. However, with the increasing number of gantry cranes, the need for unified management and scheduling is growing, and the demand for displaying this information at a ground monitoring center is becoming increasingly strong. To meet the user's need for unified ground monitoring of the operational information of multiple gantry cranes, the remote monitoring system for gantry cranes described in this application was designed.

[0023] The remote monitoring system for gantry cranes in this application transmits real-time status information from the electrical control device of the gantry crane to a remote monitoring service station on the ground via a wireless communication system. This allows for monitoring the real-time status information of each gantry crane on the ground and enabling unified scheduling and management based on this information.

[0024] like Figure 1 As shown, this application discloses an embodiment of a remote monitoring system for gantry cranes. The remote monitoring system includes a remote monitoring service station 2, an electrical control device 1 for one or more gantry cranes, and a wireless communication device 3.

[0025] Among them, the remote monitoring service station 2 is set on the ground, and each electrical control device 1 is located on the gantry machine and moves with the gantry machine.

[0026] The wireless communication device 3 includes a wireless communication receiver 32 and one or more wireless communication transmitters 31. The wireless communication transmitters 31 are installed on the gantry unit, and the wireless communication receivers 32 are installed on the ground, near the remote monitoring service station 2.

[0027] Each wireless communication transmitter 31 is connected to an electrical control device 1 via a signal line, and each wireless communication receiver 32 is connected to a remote monitoring service station 2 via a signal line. Each electrical control device 1 transmits the real-time status information of the gantry crane to the remote monitoring service station 2 through its wireless communication receiver 32 and its own wireless communication transmitter 31. The remote monitoring service station 2 monitors and displays the real-time status information of each gantry crane. This real-time status information provides real-time data support for the dispatching decisions and management of the ground monitoring center, enabling unified dispatching and management.

[0028] Specifically, the wireless communication device 3 of this application adopts a multi-transmitter-one-receiver approach, where the wireless communication transmitter 31 and the wireless communication receiver 32 are multiple transmitters and one receiver. It is worth noting that the number of wireless communication transmitters 31 corresponding to the wireless communication receiver 32 does not exceed its own reception limit.

[0029] The remote monitoring system of this application adopts wireless communication technology. Each electrical control device 1 transmits the real-time status information of the gantry crane to the remote monitoring service station 2 through the wireless communication receiver 32 and its own wireless communication transmitter 31. The remote monitoring service station 2 can monitor and display the real-time status information of each gantry crane on the ground, and make unified scheduling and management decisions based on this information, which is conducive to improving the management efficiency of multiple gantry cranes.

[0030] Furthermore, based on the above technical solution, the electrical control device 1 is the control core of the gantry crane and also the central controller for collecting information data from the gantry crane.

[0031] Before transmitting the real-time status information of the gantry crane to the outside world, the electrical control device is used to collect the real-time status information of the gantry crane. The real-time status information of the gantry crane includes operating status parameters, travel position, slewing angle, boom angle, lifting weight, wind speed and direction, and fault signals.

[0032] Furthermore, the operating status parameters of the gantry crane include the voltage, current, and frequency of the inverters for the hoisting mechanism, luffing mechanism, slewing mechanism, and traveling mechanism.

[0033] Specifically, the operating status parameters of the gantry crane include: ① the voltage, current, and frequency of the inverter for the hoisting mechanism; ② the voltage, current, and frequency of the inverter for the luffing mechanism; ③ the voltage, current, and frequency of the inverter for the slewing mechanism; and ④ the voltage, current, and frequency of the inverter for the traveling mechanism. All inverters communicate with the electrical control device 1, which converts and calculates the data into real-time status information.

[0034] Furthermore, based on the above technical solution, the remote monitoring system also includes multiple first absolute encoders, which are installed on the driven wheels of the gantry crane's walking mechanism, and the first absolute encoders communicate with the electrical control device 1.

[0035] The electrical control device 1 is used to calculate the operating displacement of the gantry machine based on the data from the first absolute encoder and the size parameters of the driven wheel.

[0036] Furthermore, the anchoring position of the gantry crane is set as the zero point of the gantry crane position, and the triggering condition for the anchoring limit signal is set. Each time the anchoring limit signal of the gantry crane is triggered, the position of the gantry crane is reset to zero. The electrical control device 1 automatically calculates the real-time position of the gantry crane on the track based on the running displacement data and the zero-position signal.

[0037] The remote monitoring system of this application obtains and calculates the operating displacement of the gantry crane through multiple first absolute encoders and the size parameters of the driven wheels, and grasps the real-time position of the gantry crane on the track according to the set zero point of the gantry crane position.

[0038] Furthermore, based on the above technical solution, the remote monitoring system also includes multiple second absolute encoders, which are installed on the slewing mechanism of the gantry crane and communicate with the electrical control device 1.

[0039] The electrical control device 1 is used to calculate the rotation angle of the gantry machine based on the data from the second absolute encoder and the rotation radius of the rotation mechanism.

[0040] The tilt sensor on the boom of the gantry crane communicates with the electrical control device 1, which converts and calculates the boom angle in real time and communicates it to the remote monitoring service station 2 for display.

[0041] Furthermore, based on the above technical solution, the overload limiter signal of the gantry crane is connected to the electrical control device 1, and the anemometer signal of the gantry crane is connected to the electrical control device 1.

[0042] The electrical control device 1 is used to obtain the lifting weight through the overload limiter of the gantry crane, and also to obtain wind speed and direction data through the anemometer of the gantry crane.

[0043] The fault signal is issued in real time by the electrical control device 1 according to the driver program and displayed on the remote monitoring service station 2.

[0044] Furthermore, based on the above technical solution, both the wireless communication transmitter 31 and the wireless communication receiver 32 include an industrial-grade split wireless bridge and two antennas.

[0045] The remote monitoring system described in this application uses wireless bridge communication, achieving a one-time investment with no subsequent communication traffic costs.

[0046] Furthermore, the wireless communication transmitter 31 comprises a 5.8GHz, 2400M industrial-grade split wireless bridge and two 5.8GHz, 15dBi dual-polarized omnidirectional antennas. The wireless communication transmitter 31 is responsible for transmitting data from the electrical control devices on the gantry crane to the ground.

[0047] The wireless communication receiver 32 consists of a 5.8GHz, 2400M industrial-grade split wireless bridge and two 5.8G, 19dBi, 120° dual-polarized sector antennas. The wireless communication receiver 32 is responsible for receiving data transmitted from the transmitter.

[0048] Such wireless bridge communication allows for a one-time investment with no subsequent communication traffic costs.

[0049] Specifically, the gantry crane is a mobile device, and the turntable on the top of the gantry crane can rotate 360°. If wired communication is used, it is necessary to configure the gantry crane center slip ring and gantry crane cable reel, etc., and the distance is far, exceeding the transmission distance of the network cable. Fiber optic communication is required, which is extremely inconvenient.

[0050] This application uses bridge communication, which is more convenient, is not affected by the movement of the gantry machine, and has a transmission distance of up to 3000 meters, making it convenient and fast.

[0051] Furthermore, based on the above technical solution, the remote monitoring service station 2 is composed of an industrial control computer, which is used to display the operating status parameters, travel position, slewing angle, boom angle, lifting weight, wind speed and direction, and fault signals of each gantry crane.

[0052] Furthermore, based on the above technical solution, the remote monitoring service station 2 has a display screen, which is used to display the real-time status information of each door station in a split-screen manner through configuration.

[0053] The remote monitoring system of this application uses wireless communication technology and industrial control computer configuration technology to form a remote monitoring system for gantry cranes, which can monitor the real-time status information of each gantry crane at the ground monitoring center.

[0054] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0055] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0056] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A remote monitoring system for a trolley, characterized by, Include: Electrical control device for one or more gantry cranes (1); Remote monitoring service station (2), located on the ground; The wireless communication device (3) includes one or more wireless communication transmitters (31) installed on the gantry crane and one wireless communication receiver (32) located on the ground. Each wireless communication transmitter (31) is connected to one of the electrical control devices (1) via a signal line. The wireless communication receiver (32) is connected to the remote monitoring service station (2) via a signal line. Each electrical control device (1) is used to transmit the real-time status information of the gantry crane to the remote monitoring service station (2) through the wireless communication receiver (32) and its own wireless communication transmitter (31). The remote monitoring service station (2) displays the real-time status information of each gantry crane.

2. A remote monitoring system for a door operator as defined in claim 1, wherein: The electrical control device is used to collect the real-time status information of the gantry crane. The real-time status information of the gantry crane includes operating status parameters, travel position, slewing angle, boom angle, lifting weight, wind speed and direction, and fault signals.

3. The remote monitoring system for a door operator as recited in claim 1, wherein: The operating status parameters of the gantry crane include the voltage, current, and frequency of the frequency converters of the hoisting mechanism, luffing mechanism, slewing mechanism, and traveling mechanism of the gantry crane.

4. The remote monitoring system for a gantry crane as described in claim 1, characterized in that: The remote monitoring system also includes a plurality of first absolute encoders installed on the driven wheel of the traveling mechanism of the gantry crane, the first absolute encoders communicating with the electrical control device (1). The electrical control device (1) is used to calculate the operating displacement of the gantry machine based on the data of the first absolute encoder and the size parameters of the driven wheel.

5. The remote monitoring system for a gantry crane as described in claim 1, characterized in that: The remote monitoring system also includes a plurality of second absolute encoders installed on the slewing mechanism of the gantry crane, the second absolute encoders communicating with the electrical control device (1). The electrical control device (1) is used to calculate the rotation angle of the gantry machine based on the data of the second absolute encoder and the rotation radius of the rotation mechanism; The tilt sensor on the boom of the gantry crane communicates with the electrical control unit (1).

6. The remote monitoring system for a door operator as recited in claim 1, wherein: The electrical control device (1) is used to obtain the lifting weight through the overload limiter of the gantry crane, and also to obtain wind speed and wind direction data through the anemometer of the gantry crane.

7. The remote monitoring system for a door operator as recited in claim 1, wherein: The wireless communication transmitter (31) and the wireless communication receiver (32) each include an industrial-grade split wireless bridge and two antennas.

8. The remote monitoring system for a gantry crane as described in claim 7, characterized in that: The wireless communication transmitter (31) consists of a 5.8GHz, 2400M industrial-grade split wireless bridge and two 5.8G, 15dBi dual-polarized omnidirectional antennas. The wireless communication receiver (32) consists of a 5.8GHz, 2400M industrial-grade split wireless bridge and two 5.8G, 19dBi, 120° dual-polarized sector antennas.

9. The remote monitoring system for a gantry crane as described in claim 1, characterized in that: The remote monitoring service station (2) consists of an industrial control computer, which is used to display the operating status parameters, travel position, slewing angle, boom angle, lifting weight, wind speed and direction and fault signals of the gantry crane.

10. The remote monitoring system for a gantry crane as described in claim 1, characterized in that: The remote monitoring service station (2) has a display screen, which is used to display the real-time status information of each door station in a split-screen manner through configuration.

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