A device for detecting the status of in-use and standby lines of container loading and unloading bridge hoists

Abstract

The present invention provides a device for detecting the status of the in-use and standby lines of a container loading and unloading bridge hoist, comprising: a power module body arranged in a junction box of a trolley top reel and a detection module body arranged in an upper wiring box; the power module body and the detection module body are connected to each other by using the in-use and standby lines; the power module body is provided with a power supply device for respectively powering on and off through each standby line, and the detection module body is provided with a detection module for respectively detecting whether there is voltage on each standby line and in-use line; the power module body and the detection module body are respectively provided with a first communication module and a second communication module for communicating with the background. The problem to be solved by the present invention is that the cable core wire fault of the hoist can be discovered at an early stage, the processing time of the cable line fault of the hoist can be reduced, manpower can be saved, and detection can be performed without stopping the machine when the cable core wire of the container loading and unloading bridge hoist fails.

Description

Technical Field

[0001] The present invention involves ingenious use of intermediate relays, CAN communication, 4G wireless communication, PLC programming, HMI human-machine interface, and field bus remote monitoring technology. Background Art

[0002] CAN is the abbreviation of Controller Area Network. It was developed by BOSCH, a German company famous for the research and development and production of automotive electronic products. It eventually became an international standard (ISO11898) and is one of the most widely used fieldbuses in the world. The high performance and reliability of CAN have been recognized and widely used in industrial automation, ships, medical equipment, industrial equipment, etc. Fieldbus is one of the hot spots of technological development in the field of automation today and is known as the computer local area network in the field of automation. Its emergence provides strong technical support for distributed control systems to achieve real-time and reliable data communication between nodes.

[0003] Fieldbus refers to a digital, serial, multi-point communication data bus between field devices installed in the manufacturing or process area and automatic devices in the control room. It is an industrial data bus and the underlying data communication network in the field of automation.

[0004] Simply put, fieldbus replaces the transmission of traditional 4-20mA analog signals and ordinary switch signals with digital communication. It is a fully digital, two-way, multi-station communication system that connects intelligent field devices and automation systems. It mainly solves the digital communication between intelligent instruments, controllers, actuators and other field devices at industrial sites, as well as the information transmission between these field control devices and advanced control systems.

[0005] The container loading and unloading bridge controls the spreader through the spreader cable. The state of the spreader cable directly affects the operation of the spreader. Once the core wire of the spreader cable fails, the machine must be shut down and the spreader must be placed on the ground. Two groups of people are involved in the inspection, one group on the spreader frame (the lower end of the spreader cable) and one group on the trolley roof junction box (the upper end of the spreader cable). The main disadvantage of this measurement method is that it only measures the static state of the spreader cable, and cannot measure the state of the container loading and unloading bridge during operation. Another disadvantage is that there is a lag in checking the line when a fault occurs; it takes many people and a long time to repair, and the backward method must be improved. Summary of the invention

[0006] The purpose of the present invention is to provide an all-weather, all-condition, networked and intelligent detection device for multi-core, moving control cables.

[0007] The technical solution adopted by the present invention to achieve its invention purpose is: a device for detecting the status of in-use and standby lines of a container loading and unloading bridge hoist, comprising: a power module body arranged in a junction box of a trolley top reel and a detection module body arranged in an upper junction box; the power module body and the detection module body are interconnected by using in-use and standby lines; the power module body is provided with a power supply device for powering on and off through each standby line respectively, and the detection module body is provided with a detection module for respectively detecting whether there is voltage on each standby line and in-use line; the power module body and the detection module body are respectively provided with a first communication module and a second communication module for communicating with the background.

[0008] Furthermore, in the above-mentioned container loading and unloading bridge hoist in-use and standby line status detection device: the power supply device includes a power supply terminal, a voltage conversion device, and standby line connection terminals which are connected to the standby lines of the hoist cable in sequence; the voltage conversion device converts the voltage output by the power supply terminal into a specified voltage and connects them to the standby line connection terminals respectively.

[0009] Furthermore, in the above-mentioned device for detecting the status of in-use and standby lines of the hoist of the container loading and unloading bridge: the detection module includes standby line detection terminals respectively connected to the standby lines of the hoist cable and in-use line detection terminals connected to the in-use lines of the hoist cable to be detected, a voltage measuring module, a dip switch connecting the voltage measuring module to each standby line detection terminal and the in-use line detection terminal respectively, and a display screen showing the voltage status on each standby line detection terminal and the in-use line detection terminal.

[0010] Furthermore, in the above-mentioned container loading and unloading bridge hoist in-use and standby line status detection device: a first standby power system and a second standby power system which can be switched in case of power failure are respectively arranged in the power module body and the detection module body.

[0011] Furthermore, in the above-mentioned container loading and unloading bridge hoist in-use and standby line status detection device: the first backup power system and the second backup power system respectively include a battery and an inverter, and the inverter inverts the DC power output by the battery into a specified AC power.

[0012] Furthermore, in the above-mentioned container loading and unloading bridge hoist in-use and standby line status detection device: the first communication module and the second communication module are 4G wireless communication modules.

[0013] Furthermore, the above-mentioned container loading and unloading bridge hoist in-use and standby line status detection device also includes a detection terminal, which communicates with the background.

[0014] Furthermore, in the above-mentioned container loading and unloading bridge hoist in-use and standby line status detection device: the detection terminal includes a mobile detection terminal installed with a detection APP.

[0015] The present invention aims to solve the problem of being able to detect a cable core wire fault of a hoisting device at an early stage, reducing the processing time when a cable line fault occurs in the hoisting device, saving manpower, and realizing detection without stopping the machine when a cable core wire fault occurs in the hoisting device of a container loading and unloading bridge.

[0016] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 It is a schematic diagram of the power supply module of the detection device of the present invention.

[0018] Attached Figure 2 It is a schematic diagram of a detection module of the detection device of the present invention.

[0019] Attached Figure 3 It is an overall block diagram of the detection device of the present invention. DETAILED DESCRIPTION

[0020] This embodiment is a device for detecting the status of in-use and standby lines of container loading and unloading bridge hoists. In this embodiment, a device for detecting the status of in-use and standby lines of container loading and unloading bridge hoists is mainly divided into a power module of a trolley top reel junction box and a detection module of a rack junction box. In addition, there are cloud services, computer clients, mobile phone clients, etc. Figure 3 shown.

[0021] The small roof junction box is used to place the power module. Figure 1 As shown: After processing, the AC or lithium battery power supply outputs 15 voltage-selectable AC power supplies. Connect the spare lines to be tested to the 1#-15# power terminal block of the trolley roof power module. This terminal block is connected to the spare lines by quick plug-in. The power module is equipped with a 10,000mah lithium battery to ensure that the device can continue to provide power signals for more than 2 hours without AC power.

[0022] Shelf junction box detection module: This module integrates touch display screen and PLC, CAN interface and 4G wireless communication module. The detection module 1#-15# terminals are connected to the spare lines. The terminal block is connected to the spare lines by quick plug-in. The touch display screen can display the detection results of 15 spare lines. The power fluctuation amplitude detected by these 15 detection ports is optional (preliminary preset ±3%, ±5%, ±7%); the in-use lines are divided into CAN communication lines and power lines of different levels, and identification signal lines. According to the function prompts, they are incorporated into the reserved ports 16#-30# of the shelf detection module. The terminal block of this port is quick plug-in. The communication lines (CAN-H, CAN-L), power lines (AC380V, AC110V), and signal lines (AC110V) are connected to the terminals of corresponding colors. Click the next page on the touch display screen to enter the monitoring interface of the in-use lines, which displays the detection results of the in-use lines. The shelf detection module is equipped with a 10000mah lithium battery to ensure that the detection device can continue to measure uninterruptedly for more than 2 hours without mains power.

[0023] Detection of in-use lines: According to the voltage level of the in-use lines, select the intermediate relay of the corresponding voltage level, connect the in-use lines to the relay coil loop, and connect the intermediate relay contacts to the corresponding terminals of the PLC. By monitoring the status of the intermediate relay contacts, you can know whether the in-use lines are normal; if after a period of detection, the contacts of the above relays do not flash off, the program will not count, and the number of line faults is zero, then the line can be considered normal. On the contrary, if the relay contacts flash off, the program will count, indirectly reflecting the number of line faults. By comparing the values ​​of the counters with each other, the faulty lines can be determined.

[0024] In-use communication line detection: connect the spreader communication lines CAN-H and CAN-L to the CAN interface of the PLC, monitor whether the heartbeat signal of the container loading and unloading bridge spreader and the heartbeat signal of the main control PLC change periodically, and record the number of heartbeat failures through the designed logic program, so as to determine whether the communication line is normal.

[0025] If the detection device detects that one or several lines are faulty, several spare lines can be selected from the spare lines with zero counts for replacement. When replacing the lines, the machine needs to be shut down and replaced on site.

[0026] By purchasing cloud services or setting up a 4G network server at the dock, the test results can be transmitted to the PC client or mobile client in real time, realizing simultaneous, multi-location, and multi-party monitoring of the test data. It can also realize pop-up reminders on the PC side and SMS reminders on the mobile phone side when the line is broken, and even put the available spare line into use according to the remote control command when the line is faulty. The operation method of this switching function is to switch the key lines, such as CAN-H and CAN-L communication lines; 110V-L and 110V-N power lines. If CAN-H uses the 10# line, by matching the spare line in good condition in advance, assuming it is 16#, the 10# line in use is switched to the spare 16# line by controlling the intermediate relay. This switching function can send instructions through the mobile phone or computer side, and the detection device drives the switching relay to switch the fault line to the spare line; the same method can be used to switch the CAN-L, 110V-L, and 110V-N lines.

[0027] This embodiment solves many drawbacks of existing traditional detection methods, such as: the machine must be shut down, multiple people must be involved, the hoist must be placed on the ground, and both ends must be operated simultaneously for detection, and it can only detect the on and off status of the hoist cable core when the equipment is stationary, and cannot detect the status of the cable core during the movement of the equipment; after placing the detection device, it can realize remote control to open or close the detection function of single or multiple loading and unloading bridges, and can realize real-time detection of container loading and unloading bridge hoists in use and spare lines throughout the day and in all working conditions, real-time recording, and multi-party monitoring of single or multiple devices.

[0028] A container loading and unloading bridge hoist in-use and standby line status detection module of this embodiment is as follows Figure 2 As shown, it includes a power module body 1 and a detection module body 7.

[0029] The power module body 1 is as follows Figure 1 As shown, the upper left end is the power interface, which can use power supplies of different voltage levels; the middle left end of the power module main body device 1 is the dip switch, which is the operating button of the voltage conversion device 3 and determines the voltage level output by the output terminal block; the lower end of the power module main body 1 is the backup line output terminal block 2, which is used to connect the detected backup line; a lithium battery and a lithium battery management module are arranged inside the power module main body 1 as the first backup power supply 5, when the mains power supply is suddenly cut off, the lithium battery is automatically put into use, and when the mains power supply detects that the lithium battery power is less than 50%, the charging function is turned on; a 4G wireless communication module is arranged inside the lower right end of the power module main body device.

[0030] The power interface can adapt to the power supply and output the power of the set voltage level according to the dip switch, and output it at the output terminal block.

[0031] During the test, if the power interface suddenly loses power, the power module main device can respond quickly, enable the lithium battery to work, and output power of the set voltage level at the output terminal block.

[0032] The main device of the power module can manage the lithium battery. When the battery power is lower than 50% (settable), it will automatically charge. When charging cannot be completed, a fault code will be sent to remind the user.

[0033] The main device of the detection module is an integrated machine with PLC and HMI, with CAN communication port and 4G wireless communication module; the upper right end of the main device of the detection module is connected to the power supply and lithium battery management module, and the main power is converted to power the detection module. When the main power supply is suddenly cut off, the lithium battery is automatically put into use. When the main power supply detects that the lithium battery power is less than 50%, the charging function is turned on; the upper end of the main device of the detection module is the in-use line detection terminal block, the red terminal block detects the 380V in-use line, the yellow terminal block detects the 110V in-use line, and the green terminal block detects the CAN in-use line , the gray terminal block detects other control lines. The principle is to record the on-off status of the auxiliary contacts of the intermediate relay, and indirectly understand the status of the lines in use; the middle part of the main body of the detection module is a touch screen, and the detection results of the lines in use and the standby lines can be viewed by operating the touch screen, and the current location (equipment number) can be set; the middle part of the right end of the main body of the detection module is a dip switch, which is used to set the detection accuracy of the standby line; the lower end of the main body of the detection module is a terminal block for connecting the standby lines; a 4G wireless communication module is arranged inside the right end of the main body of the detection module

[0034] It contains a small PLC and 110VDI module, which are used to monitor the voltage signal status of all standby line terminal blocks, and perform logical operations and data statistics to directly understand the standby line status; or connect the standby line to the intermediate relay, and the PLC24V DI module records the number of times the auxiliary contacts of the intermediate relay are on and off, so as to indirectly understand the standby line status.

[0035] It contains a CAN interface to monitor whether the spreader communication is normal and to detect heartbeat data.

[0036] Three small intermediate relays with different voltage levels are set inside, and the auxiliary contacts are connected to the PLC module in categories. The status of the power supply line is reflected by the status of the auxiliary contacts. For example, if the V-phase (380V) line of the hoisting oil pump power supply is not in good condition and is occasionally connected and disconnected, the corresponding intermediate relay will be connected and disconnected, the auxiliary contacts will be connected and disconnected, and the PLC monitoring point will perform logical operations.

[0037] The touch screen HMI can display the data monitored by the PLC according to the screen distribution, thereby reflecting the status of the active lines and standby lines.

[0038] The 4G wireless module can transmit monitored data and accept instructions from remote computer management terminals and mobile phone management terminals.

[0039] The power module body 1 of the device for detecting the status of the in-use and standby lines of the container loading and unloading bridge hoist of this embodiment is placed inside the junction box of the top reel of the container loading and unloading bridge trolley, the power terminal 4 is connected to the AC power, the dial 3 is turned to the 110V position, and the output terminal 2 will output an AC point of 110V later, and the output terminal 2 is connected to the standby line that needs to be detected.

[0040] The detection module body 7 of the device for detecting the status of the in-use and standby lines of the container loading and unloading bridge hoist is placed inside the upper wiring box, the standby line detection terminal 8 is connected to the standby line to be detected, and the in-use line detection terminal 10 is connected to the in-use line to be detected according to the color and function. Before the test starts, the threshold of the standby line count can be selected by the dip switch 12, and the touch display screen 9 will display the status of the standby line and the in-use line, and the number of the container loading and unloading bridge being detected.

[0041] The power module main body device of this embodiment is used in conjunction with the detection module main body to detect the status of the standby line. The detection module main body is used alone to detect the status of the active line. The standby line detection steps and principles are as follows: Figure 3 .

[0042] 1. In the trolley roof junction box, power on, power off, power on, power off repeatedly through the power terminal 4 of the power module body 1;

[0043] 2. In the upper wiring box, turn to the standby line detection page through the touch screen 9 of the detection module body 7 to check whether all the detected standby lines are synchronized with the operation of the trolley roof (how many times the trolley roof power is turned on and off, and how many times the detection module counts). If the count is synchronized, it means that the line connection is normal in static state and the module is working normally;

[0044] 3. Fix the power module of the small car roof junction box with a special bracket and cover the cover;

[0045] 4. Use a special bracket to fix the detection module of the upper junction box and cover the cover

[0046] 5. Check that the computer client and the mobile client are communicating normally and the counting is synchronized

[0047] 6. Log in as an administrator on the computer and mobile phone to turn on and off the power module and the test module.

[0048] 7. Personnel evacuate, put equipment into use, and start the equipment regularly for testing.

Claims

1. A device for detecting the status of in-use and standby lines of container loading and unloading bridge hoists, characterized in that: include: A power module body (1) is arranged in a junction box of a trolley top reel and a detection module body (7) is arranged in an upper wiring box; the power module body (1) and the detection module body (7) are connected to each other using in-use and standby lines; the power module body (1) is provided with a power supply device for powering on and off through each standby line, and the detection module body (7) is provided with a detection module for detecting whether there is voltage on each standby line and in-use line; the power module body (1) and the detection module body (7) are respectively provided with a first communication module (6) and a second communication module (13) for communicating with the background.

2. The device for detecting the status of in-use and standby lines of container loading and unloading bridge slings according to claim 1 is characterized in that: The power supply device comprises a power supply terminal (4), a voltage conversion device (3), and a backup line connection terminal (2) connected to each backup line of the sling cable in sequence. The voltage conversion device (3) converts the voltage output by the power supply terminal (4) into a specified voltage and connects the voltage to the backup line connection terminal (2) respectively.

3. The device for detecting the status of in-use and standby lines of container loading and unloading bridge slings according to claim 1 is characterized in that: The detection module comprises a standby line detection terminal (8) respectively connected to each standby line of the hanger cable and an in-use line detection terminal (10) connected to the in-use line of the hanger cable to be detected, a voltage measurement module, a dial switch (12) connecting the voltage measurement module to each standby line detection terminal (8) and the in-use line detection terminal (10), and a display screen (9) for displaying the voltage conditions on each standby line detection terminal (8) and the in-use line detection terminal (10).

4. The device for detecting the status of in-use and standby lines of container loading and unloading bridge slings according to claim 1 is characterized in that: A first backup power system (5) and a second backup power system (11) which can be switched in the event of a power outage are respectively arranged in the power module body (1) and the detection module body (7).

5. The device for detecting the status of in-use and standby lines of container loading and unloading bridge slings according to claim 4 is characterized in that: The first backup power system (5) and the second backup power system (11) respectively include a battery and an inverter, and the inverter inverts the direct current output by the battery into a specified alternating current.

6. The device for detecting the status of in-use and standby lines of container loading and unloading bridge spreaders according to any one of claims 1 to 5, characterized in that: The first communication module (6) and the second communication module (13) are 4G wireless communication modules.

7. The device for detecting the status of in-use and standby lines of container loading and unloading bridge slings according to claim 6 is characterized in that: It also includes a detection terminal, which communicates with the background.

8. The device for detecting the status of in-use and standby lines of container loading and unloading bridge slings according to claim 7 is characterized in that: The detection terminal includes a mobile detection terminal installed with a detection APP.

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