Underground monorail crane abrupt slope section track stress correlation battery load regulation and control device and method

Abstract

The invention discloses an underground monorail crane abrupt slope section rail stress associated battery load regulation and control device and method, relates to the field of underground monorail crane safety control, and solves the problems that rail stress exceeds the standard and a battery is locally overloaded during heavy load downhill. The upper end of a monorail crane is connected with a guide rail; a LoRa wireless linkage control unit and a parallel battery pack are arranged on the monorail crane; a position triggering unit is arranged in front of an entrance of the guide rail abrupt slope section, and the guide rail abrupt slope section is provided with a modular stress monitoring unit; the modularized stress monitoring unit and the position triggering unit are both in signal connection with the LoRa wireless linkage control unit, and the LoRa wireless linkage control unit is connected with the parallel battery pack. The method comprises the following steps: receiving stress data and a trigger signal through a wireless link; after the monorail crane enters an abrupt slope area and is wirelessly activated by the position triggering unit, the stress sensor collects rail stress data in real time, and if the stress exceeds the standard, the linkage control unit triggers the driving system to reduce the output power according to a fixed proportion and controls the parallel battery pack to averagely distribute loads.

Description

Technical Field

[0001] This invention relates to the field of safety control technology for underground monorail cranes, specifically to a device and method for regulating the load of battery related to track stress on steep slope sections of underground monorail cranes. Background Technology

[0002] As a key piece of equipment for heavy-duty transportation, underground monorails are prone to acceleration when traveling downhill on steep slopes due to the influence of gravity, which can cause excessive stress on components such as the track beam and anchor bolts, leading to structural deformation or even safety accidents. At the same time, during the braking and traction force changes of the monorail, the parallel battery pack is prone to generate local large currents, causing battery damage and shortening its service life.

[0003] Existing solutions often rely on complex system reconfiguration or customized equipment, resulting in high deployment costs, difficult construction, and poor adaptability, making them difficult to rapidly promote on existing monorail equipment. Some simplified speed control solutions lack the linkage control between track stress and battery load, failing to simultaneously address the two major pain points of excessive stress and battery overload, thus lacking practicality. Summary of the Invention

[0004] To address the aforementioned issues of excessive track stress and localized battery overload during heavy-load downhill operation of monorail cranes, this invention proposes a device and method for regulating battery load in relation to track stress on steep slopes in underground monorail cranes. This invention eliminates the need to modify the core architecture of existing equipment. By utilizing mature modular components, LoRa wireless linkage, and hardware interface reuse, it reduces deployment costs, effectively mitigates excessive track stress, avoids localized high-current damage to the battery, and improves the safety and economy of monorail crane operation on steep slopes.

[0005] This invention proposes a track stress-related battery load control device for a monorail crane on a steep slope in an underground mine. Specifically, it includes a modular stress monitoring unit, a position triggering unit, a LoRa wireless linkage control unit, a guide rail, a parallel battery pack, and a monorail crane. The upper end of the monorail crane is connected to the guide rail. The LoRa wireless linkage control unit and the parallel battery pack are mounted on the monorail crane. The position triggering unit is located before the entrance to the steep slope section of the guide rail, and the modular stress monitoring unit is located on the steep slope section of the guide rail. Both the modular stress monitoring unit and the position triggering unit are signal-connected to the LoRa wireless linkage control unit, which is connected to the parallel battery pack.

[0006] Furthermore, the modular stress monitoring unit includes at least two stress sensors, each of which integrates a LoRa terminal module. The LoRa terminal module and the LoRa wireless linkage control unit are connected by a signal.

[0007] Furthermore, the stress sensor is externally wrapped with a wear-resistant and waterproof protective sleeve.

[0008] Furthermore, the position triggering unit includes a proximity switch, which is located at the end of the position triggering unit away from the entrance of the steep slope section of the guide rail.

[0009] Furthermore, the position triggering unit is located 10m-20m before the entrance of the steep slope section of the guide rail; the proximity switch triggering distance is 5cm-10cm.

[0010] Furthermore, the location triggering unit is equipped with a LoRa terminal module, which is signal-connected to the LoRa wireless linkage control unit.

[0011] Furthermore, the LoRa wireless linkage control unit includes a LoRa core node module and a controller, with the controller and the LoRa core node module being signal-connected; the LoRa core node module is signal-connected to a modular stress monitoring unit and a position triggering unit, respectively; the controller is signal-connected to the modular stress monitoring unit; and the controller is signal-connected to the parallel battery pack.

[0012] Furthermore, the controller has built-in linkage control logic to determine whether the stress exceeds a threshold.

[0013] Furthermore, the LoRa wireless linkage control unit also includes a signal output interface, through which the controller is connected to the parallel battery pack via a signal output interface.

[0014] A control method for using the aforementioned track stress-related battery load control device for steep slope sections of underground monorail cranes specifically includes the following steps: Step 1: When the monorail travels to the detection range of the position triggering unit, the position triggering unit sends a trigger signal to the LoRa wireless linkage control unit; Step 2: The LoRa wireless linkage control unit sends an activation command to the modular stress monitoring unit, which then collects the guide rail stress data and transmits the data back to the LoRa wireless linkage control unit. Step 3: The LoRa wireless linkage control unit judges the stress data. When the stress data exceeds the threshold, it controls the parallel battery pack to reduce the power. Step 4: After the monorail gantry crane leaves the steep slope section, the trigger signal of the position trigger unit disappears, the LoRa wireless linkage control unit controls the modular stress monitoring unit to enter sleep mode, and the monorail gantry crane returns to its original operating mode.

[0015] The beneficial effects of the battery load control device and method for track stress correlation on steep slope sections of underground monorail cranes described in this invention are as follows: (1) The present invention provides a device and method for regulating the load of a battery on a steep slope section of a monorail in a mine, which receives stress data and trigger signals through a wireless link and reuses the power adjustment interface of the existing drive system and the load distribution interface of the battery management system of the monorail. When the monorail enters the steep slope area and is wirelessly activated by the position triggering unit, the stress sensor collects track stress data in real time. If the stress exceeds the standard, the LoRa wireless linkage control unit triggers the drive system to reduce the output power by a fixed ratio and controls the parallel battery pack to distribute the load evenly.

[0016] (2) The device and method for regulating the track stress correlation battery load of a monorail in a steep section of a well described in this invention adopts a mature modular strain gauge sensor and a proximity switch, which does not require custom development. It also reuses the hardware interface of the existing drive system and battery management system of the monorail, without modifying the core architecture, thus reducing deployment costs and construction difficulty.

[0017] (3) The device and method for controlling the track stress correlation battery load of a monorail in a steep section of a well described in this invention realizes the on-demand activation of the stress sensor through the position triggering unit, avoids invalid monitoring of non-steep slope sections, reduces equipment power consumption and data redundancy, and at the same time, wireless transmission ensures signal stability and reduces delay or interference problems.

[0018] (4) The device and method for regulating the load of battery on the track stress of a monorail in a steep section of a well described in this invention can reduce the excessive track stress by reducing power, avoid damage to the battery by local high current, extend the track maintenance cycle and battery life, and improve the safety and economy of monorail operation. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0020] In the attached diagram: Figure 1 This is a schematic diagram of the LoRa wireless linkage control unit and parallel battery pack on a monorail crane in a steep slope section of an underground monorail crane, as described in this invention. Figure 2 This is a schematic diagram showing the setup of the modular stress monitoring unit and position triggering unit on the track of a battery load control device for track stress correlation on steep slope sections of an underground monorail crane, as described in this invention. The components are: 1- Modular stress monitoring unit, 2- Position triggering unit, 3- LoRa terminal module, 31- LoRa transmitter, 4- LoRa wireless linkage control unit, 41- LoRa core node module, 42- Controller, 43- Signal output interface, 5- Guide rail, 6- Parallel battery pack. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. The described embodiments are merely some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] Specific implementation method one: See Figures 1-2 This embodiment describes a specific method for controlling the track stress and battery load of a monorail crane on a steep slope in an underground mine. Specifically, it includes a modular stress monitoring unit 1, a position triggering unit 2, a LoRa wireless linkage control unit 4, a guide rail 5, a parallel battery pack 6, and a monorail crane. The upper end of the monorail crane is connected to the guide rail 5. The LoRa wireless linkage control unit 4 and the parallel battery pack 6 are mounted on the monorail crane. The position triggering unit 2 is located before the entrance to the steep slope section of the guide rail 5, and the modular stress monitoring unit 1 is located on the steep slope section of the guide rail 5. Both the modular stress monitoring unit 1 and the position triggering unit 2 are signal-connected to the LoRa wireless linkage control unit 4, which is connected to the parallel battery pack 6. The parallel battery pack 6 provides the energy required for the operation of the entire monorail crane train.

[0023] The modular stress monitoring unit 1 includes at least two stress sensors 11, which are mounted on the lower surface of the guide rail 5 for stress detection. Each stress sensor 11 integrates a LoRa terminal module 3, which is signal-connected to the LoRa wireless linkage control unit 4. The stress sensor 11 is a strain gauge type stress sensor, which outputs a standard signal of 4mA-20mA. It is installed at key stress points and anchor bolt connections of the monorail crane beam using a detachable fixing bracket. After being fixed, the stress sensor 11 is encapsulated in a mining intrinsically safe wear-resistant and waterproof protective sleeve.

[0024] The position triggering unit 2 is located 10m-20m before the entrance of the steep slope section of guide rail 5 on the side of the track. The position triggering unit 2 includes a proximity switch 21, which is located at the end of the position triggering unit 2 away from the entrance of the steep slope section of guide rail 5. The triggering distance of the proximity switch 21 is 5cm-10cm. A LoRa terminal module 3 is provided on the position triggering unit 2, and the LoRa terminal module 3 transmits signals to the LoRa wireless linkage control unit 4 through the LoRa transmitter 31 provided on it.

[0025] The LoRa wireless linkage control unit 4 includes a LoRa core node module 41, a controller 42, and a signal output interface 43. The controller 42 is signal-connected to the LoRa core node module 41. The LoRa core node module 41 is signal-connected to the modular stress monitoring unit 1 and the position triggering unit 2, respectively, and receives signals from the LoRa transmitter 31 in the position triggering unit 2 and track stress signals transmitted by each stress sensor 11 through the LoRa transmitter 31. The controller 42 is signal-connected to the modular stress monitoring unit 1. The controller 42 is signal-connected to the parallel battery pack 6 through the signal output interface 43. The controller 42 has built-in linkage control logic to determine whether the stress exceeds a threshold. The signal output interface 43 converts the commands of the controller 42 into the format of the target system.

[0026] A control method for using the aforementioned track stress-related battery load control device for steep slope sections of underground monorail cranes specifically includes the following steps: Step 1: The monorail travels along the guide rail 5 to the steep slope section. When it reaches the detection range of the proximity switch 21, the proximity switch 21 sends a trigger signal. The trigger signal is sent to the LoRa wireless linkage control unit 4 through the LoRa terminal module 3 and received by the LoRa core node module 41. Step 2: The controller 42 of the LoRa wireless linkage control unit 4 sends an activation command to the modular stress monitoring unit 1. The strain gauge stress sensor 11 starts up and begins to collect stress data of the track 5. The collected data is transmitted to the LoRa core node module 41 via the LoRa terminal module 3. Step 3: The LoRa wireless linkage control unit 4 judges the stress data. When the controller 42 detects that the collected stress data exceeds the threshold, it immediately generates a power reduction command, which is converted into a recognizable signal and transmitted to the parallel battery pack 6 through the signal output interface 43. After receiving the command to reduce the output power, the parallel battery pack 6 slows down the downhill speed of the monorail, thereby reducing the stress on the track 5 and avoiding local high current damage. Step 4: After the monorail leaves the steep slope section, the trigger signal of the proximity switch 21 disappears, the controller 42 sends a sleep command to the modular stress monitoring unit 1, the stress sensor 11 stops collecting stress data of the track 5, and the monorail resumes its original operating mode.

[0027] In summary, the present invention provides a track stress correlation battery load control device and method for a monorail crane on a steep slope. This device receives stress data and trigger signals via a wireless link, reusing the existing power adjustment interface of the monorail crane's drive system and the load distribution interface of the battery management system. When the monorail crane enters a steep slope area and is wirelessly activated by the position trigger unit 2, the stress sensor 11 collects stress data from the track 5 in real time. If the stress exceeds the standard, the LoRa wireless linkage control unit 4 triggers the drive system to reduce its output power by a fixed ratio and controls the parallel battery pack 6 to distribute the load evenly.

[0028] The present invention discloses a track stress correlation battery load control device and method for a monorail crane on a steep slope. It adopts a mature modular strain gauge sensor and a proximity switch 21, which does not require custom development. It also reuses the hardware interface of the existing drive system and battery management system of the monorail crane without modifying the core architecture, thus reducing deployment costs and construction difficulty.

[0029] The present invention discloses a track stress correlation battery load control device and method for a monorail crane on a steep slope in an underground mine. The stress sensor 11 is activated on demand through the position triggering unit 2, which avoids invalid monitoring on non-steep slope sections, reduces equipment power consumption and data redundancy, and ensures signal stability through wireless transmission, reducing delay or interference problems.

[0030] The present invention discloses a track stress-related battery load control device and method for a monorail crane on a steep slope, which can reduce the stress of track 5 by reducing power, avoid local high current damage to the battery, extend the maintenance cycle of track 5 and the service life of the battery, and improve the safety and economy of monorail crane operation.

[0031] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the invention. They can also be reasonable combinations of the features described in the above embodiments. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A battery load control device for track stress correlation on steep slope sections of underground monorail cranes, characterized in that: It includes a modular stress monitoring unit (1), a position triggering unit (2), a LoRa wireless linkage control unit (4), a guide rail (5), a parallel battery pack (6), and a monorail crane; the upper end of the monorail crane is connected to the guide rail (5); the LoRa wireless linkage control unit (4) and the parallel battery pack (6) are installed on the monorail crane; the position triggering unit (2) is installed in front of the steep slope section entrance of the guide rail (5), and the modular stress monitoring unit (1) is installed on the steep slope section of the guide rail (5); both the modular stress monitoring unit (1) and the position triggering unit (2) are connected to the LoRa wireless linkage control unit (4) by signal, and the LoRa wireless linkage control unit (4) is connected to the parallel battery pack (6).

2. The underground monorail crane steep slope section track stress correlation battery load control device according to claim 1, characterized in that: The modular stress monitoring unit (1) includes at least two stress sensors (11), each stress sensor (11) is equipped with a LoRa terminal module (3), and the LoRa terminal module (3) and the LoRa wireless linkage control unit (4) are connected by a signal.

3. The underground monorail crane steep slope section track stress correlation battery load control device according to claim 2, characterized in that: The stress sensor (11) is wrapped with a wear-resistant and waterproof protective sleeve.

4. The underground monorail crane steep slope section track stress correlation battery load control device according to claim 1, characterized in that: The position triggering unit (2) includes a proximity switch (21), which is located at one end of the position triggering unit (2) away from the entrance of the steep slope section of the guide rail (5).

5. The underground monorail crane steep slope section track stress correlation battery load control device according to claim 4, characterized in that: The position triggering unit (2) is set 10m-20m in front of the entrance of the steep slope section of the guide rail (5); the triggering distance of the proximity switch (21) is 5cm-10cm.

6. The underground monorail crane steep slope section track stress correlation battery load control device according to claim 4, characterized in that: The location triggering unit (2) is equipped with a LoRa terminal module (3), and the LoRa terminal module (3) and the LoRa wireless linkage control unit (4) are connected by signals.

7. The underground monorail crane steep slope section track stress correlation battery load control device according to claim 1, characterized in that: The LoRa wireless linkage control unit (4) includes a LoRa core node module (41) and a controller (42). The controller (42) and the LoRa core node module (41) are connected by signal. The LoRa core node module (41) is connected by signal to the modular stress monitoring unit (1) and the position triggering unit (2), respectively. The controller (42) is connected by signal to the modular stress monitoring unit (1). The controller (42) is connected by signal to the parallel battery pack (6).

8. The underground monorail crane steep slope section track stress correlation battery load control device according to claim 7, characterized in that: The controller (42) has built-in linkage control logic to determine whether the stress exceeds the threshold.

9. The underground monorail crane steep slope section track stress correlation battery load control device according to claim 8, characterized in that: The LoRa wireless linkage control unit (4) also includes a signal output interface (43), and the controller (42) is connected to the parallel battery pack (6) via the signal output interface (43).

10. A control method for the track stress-related battery load control device for steep slope sections of underground monorail cranes as described in claim 1, characterized in that: Includes the following steps: Step 1: When the monorail travels to the detection range of the position triggering unit (2), the position triggering unit (2) sends a trigger signal to the LoRa wireless linkage control unit (4). Step 2: The LoRa wireless linkage control unit (4) sends an activation command to the modular stress monitoring unit (1), and the modular stress monitoring unit (1) collects the stress data of the guide rail (5) and transmits the data back to the LoRa wireless linkage control unit (4). Step 3: The LoRa wireless linkage control unit (4) judges the stress data. When the stress data exceeds the threshold, it controls the parallel battery pack (6) to reduce the power. Step 4: After the monorail crane leaves the steep slope section, the trigger signal of the position trigger unit (2) disappears, the LoRa wireless linkage control unit (4) controls the modular stress monitoring unit (1) to enter sleep mode, and the monorail crane returns to its original operating mode.

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