Intelligent monitoring device for pure electric mine wide-body vehicle

Abstract

The application relates to an intelligent monitoring device of a pure electric mine wide-body vehicle. The device comprises a vibration sensor, a strain sensor, a pretightening force sensor, a temperature sensor, a dust sensor, an anti-interference transmission module and a wide-body vehicle body. The vibration sensor comprises four acceleration sensors, each of which is arranged on a plane where an angle point of a battery box of the wide-body vehicle body is located, and an axis of each of the acceleration sensors is parallel to an edge of the battery box. The strain sensor is arranged at a battery support main beam span of the wide-body vehicle body and bolt holes of the wide-body vehicle body. The pretightening force sensor is arranged in a nut of the angle point of the battery box. The temperature sensor is arranged at a middle part of a side surface of the battery box. The dust sensor is arranged at an outer side of a top of a control cabinet. The anti-interference transmission module is arranged in the control cabinet of the wide-body vehicle body and is used for anti-interference processing and transmission of the signals. The battery installation stability monitoring effect of the pure electric mine wide-body vehicle is improved.

Description

Technical Field

[0001] This application relates to the field of pure electric mining wide-body truck technology, and in particular to an intelligent monitoring device for a pure electric mining wide-body truck. Background Technology

[0002] In the field of pure electric wide-body mining trucks, battery installation stability monitoring faces multi-dimensional technical challenges. Existing solutions mostly employ a mechanical fixing and parameter monitoring mode combining bolt fastening with a single sensor (such as a strain gauge or accelerometer), or rely on periodic manual inspections and static torque testing. These methods struggle to address the multi-physical coupling effects under complex mining conditions. When the mining truck is in motion, the battery installation system is subjected to the combined effects of vertical vibration, lateral impact, temperature cycling, and bolt preload decay. Traditional single-parameter models cannot decouple the cross-influence of these factors, resulting in a large monitoring error rate. Therefore, improving the battery installation stability monitoring of pure electric wide-body mining trucks is a current research focus.

[0003] Traditional technology improves the comprehensiveness of battery installation stability monitoring by integrating sensors and increasing monitoring time. However, the monitoring of integrated sensors is limited, especially the completeness of battery installation stability detection. Moreover, the harsh environment of mines, such as high dust and electromagnetic interference, causes sensor signal distortion. Offline detection mode cannot provide timely warnings for sudden loosening faults during driving, resulting in poor battery installation stability monitoring effect for pure electric mining wide-body trucks. Utility Model Content

[0004] Therefore, it is necessary to provide an intelligent monitoring device for a pure electric wide-body mining vehicle to address the aforementioned technical problems.

[0005] Firstly, this application provides an intelligent monitoring device for a pure electric wide-body mining vehicle, comprising:

[0006] Vibration sensors, strain sensors, preload sensors, temperature sensors, dust sensors, anti-interference transmission modules, and wide-body vehicle bodies;

[0007] The vibration sensor includes four acceleration sensors, each of which is located on the plane of the corner of the battery box of the wide-body vehicle, and the axis of each acceleration sensor is parallel to the edge of the battery box; the vibration sensor is used to transmit the collected vibration signal to the anti-interference transmission module through the high-speed data mainline;

[0008] The strain sensor is installed at the mid-span of the main beam of the battery bracket of the wide-body vehicle and at the bolt holes of the wide-body vehicle, and is used to transmit the collected strain signal to the anti-interference transmission module.

[0009] The preload sensor is installed in the nut at the corner of the battery box of the wide-body vehicle and is used to transmit the torque signal to the anti-interference transmission module through the data interface.

[0010] The temperature sensor is located in the middle of the side of the battery box and is used to transmit the temperature signal to the anti-interference transmission module after digital processing.

[0011] The dust sensor is located on the top outer side of the control cabinet of the wide-body vehicle and is used to transmit dust signals to the anti-interference transmission module through an opto-isolator.

[0012] The anti-interference transmission module is installed in the control cabinet of the wide-body vehicle and is used to process the vibration signal, strain signal, torque signal, temperature signal and dust signal to prevent interference before transmitting them to the staff client.

[0013] Optionally, the vibration sensor further includes:

[0014] The plane at the corner of the battery housing where the accelerometer is located is either the vertical plane or the horizontal plane of the corner, and the axis of the accelerometer is parallel to the edge of the battery housing.

[0015] The accelerometer is connected to the battery housing by bolts and is used to capture the vertical impact vibration and the lateral impact vibration of the battery housing.

[0016] The vibration signal collected by the acceleration sensor is transmitted via a coaxial cable. The coaxial cable is covered with a metal corrugated tube and runs along the inner side of the frame of the wide-body vehicle before entering the control cabinet through an explosion-proof gland.

[0017] Optionally, the strain sensor further includes:

[0018] When the strain sensor is installed at the bolt hole of the wide-body vehicle, the strain sensor is installed within a 5mm radius around the bolt hole.

[0019] The strain sensors are arranged in a cross shape at the mid-span of the main beam of the battery bracket and at the bolt holes of the wide-body vehicle, and the strain sensors are connected to the mid-span of the main beam of the battery bracket and at the bolt holes of the wide-body vehicle by adhesive bonding.

[0020] Optionally, the strain sensor further includes:

[0021] The grid axis of the strain sensor is aligned with the main stress direction of the battery bracket main beam mid-span and the wide-body vehicle body, respectively, and forms a 3*3 grid monitoring array, which is connected in series through single-mode optical fiber;

[0022] The strain signal collected by the strain sensor is aggregated by a coupler, connected to the armored optical cable, and then connected to the demodulator after entering the control cabinet. The strain signal is then transmitted to the anti-interference transmission module through the connection interface in the demodulator. The armored optical cable is laid along the cable groove in the middle of the main beam of the battery bracket.

[0023] Optionally, the preload sensor further includes:

[0024] The nut is a wireless torque nut, and the nut has a built-in piezoresistive sensor and an energy storage chip for real-time acquisition of preload data.

[0025] The energy storage chip modulates the preload data into a modulation signal, and transmits the modulation signal to a reader / writer installed on the surface of the control cabinet via a relay antenna;

[0026] The reader processes the modulation signal using an anti-collision algorithm to obtain the preload data, and then transmits the preload data to the anti-interference transmission module through a data interface.

[0027] Optionally, the temperature sensor further includes:

[0028] The temperature sensor is positioned at a point one-third of the distance from the top to the bottom of the battery housing on the middle of the side of the battery housing.

[0029] The distance between the temperature sensor probe and the battery casing is 5mm.

[0030] Optionally, the temperature sensor further includes:

[0031] The temperature data collected by the temperature sensor is connected to the temperature acquisition module in the control cabinet via a shielded wire.

[0032] The temperature acquisition module uses a Wheatstone bridge circuit to convert the temperature data into a voltage signal, and after digitizing the voltage signal, it transmits it to the anti-interference transmission module.

[0033] Optionally, the dust sensor further includes:

[0034] A metal air duct, which is connected to the outside after the inner wall is smoothed, and a waterproof and dustproof net is provided at the inlet of the metal air duct.

[0035] The dust sensor collects dust concentration data through the metal air duct and converts the dust concentration data into a dust signal.

[0036] Optionally, the anti-interference transmission module further includes:

[0037] Signal processing module and signal transmission module;

[0038] The signal processing module is used to add timestamps to the vibration signal, strain signal, torque signal, temperature signal, and dust signal, and to perform spatiotemporal alignment processing on the vibration signal, strain signal, torque signal, temperature signal, and dust signal to obtain optimized vibration signal, optimized strain signal, optimized torque signal, optimized temperature signal, and optimized dust signal.

[0039] Optionally, the anti-interference transmission module further includes:

[0040] Signal transmission module;

[0041] The signal transmission module is used to transmit the optimized vibration signal, optimized strain signal, optimized torque signal, optimized temperature signal, and optimized dust signal to the worker's client through anti-interference protection hardware;

[0042] The signal transmission module has a dual-redundancy architecture consisting of a high-speed data bus and an optical fiber ring network.

[0043] The anti-interference protection hardware includes shielded cables and opto-isolators.

[0044] The aforementioned intelligent monitoring equipment for a pure electric wide-body mining vehicle includes vibration sensors, strain sensors, preload sensors, temperature sensors, dust sensors, an anti-interference transmission module, and the wide-body vehicle body. The vibration sensors include four accelerometers, each positioned on the plane containing the corner of the battery box on the wide-body vehicle body, with the axis of each accelerometer parallel to the edge of the battery box. The vibration sensors transmit the collected vibration signals to the anti-interference transmission module via a high-speed data line. The strain sensors are located at the mid-span of the main beam of the battery bracket on the wide-body vehicle body and at the bolt holes on the wide-body vehicle body, and transmit the collected strain signals to the anti-interference transmission module. An anti-interference transmission module is included. The preload sensor is located in the nut at the corner of the battery box of the wide-body vehicle, transmitting torque signals to the anti-interference transmission module via a data interface. The temperature sensor is located in the middle of the side of the battery box, transmitting temperature signals digitally to the anti-interference transmission module. The dust sensor is located on the top outer side of the control cabinet of the wide-body vehicle, transmitting dust signals to the anti-interference transmission module via an opto-isolator. The anti-interference transmission module is located in the control cabinet of the wide-body vehicle, transmitting the vibration, strain, torque, temperature, and dust signals to the operator's client after anti-interference processing. The technical advantage of this solution is that by setting vibration, strain, torque, temperature, and dust sensors at locations where vibration, strain, torque, temperature, and dust signals are easier to collect, and considering the structural characteristics of the wide-body vehicle, the comprehensiveness of signal acquisition is improved, and the signal acquisition error is reduced. Secondly, this solution incorporates an anti-interference transmission module, enabling the construction of an explosion-proof, dust-proof, and electromagnetic interference-resistant monitoring system adapted to the mining environment. This enhances the reliability of the intelligent monitoring system for the installation stability of pure electric mining wide-body trucks in extreme environments and significantly reduces the safety risk of battery detachment. Finally, this solution comprehensively acquires the real-time status of the battery box of the pure electric mining wide-body truck from the perspectives of vibration, strain, preload, temperature, and dust. By fusing multiple physical quantities such as vibration, strain, temperature, and torque, it achieves real-time detection of the battery installation in pure electric mining wide-body trucks. This solves the problem that traditional methods cannot dynamically capture sudden changes in battery installation status, enabling second-level early warnings for faults such as bolt loosening, bracket deformation, and buffer failure. Therefore, it comprehensively improves the monitoring effect of battery installation stability for pure electric mining wide-body trucks. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies 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.

[0046] Figure 1 This is a structural diagram of the intelligent monitoring device for a pure electric wide-body mining vehicle in one embodiment.

[0047] Figure 2 A sensor setup diagram of a vibration sensor in one embodiment;

[0048] Figure 3 A sensor setup diagram of a strain sensor in one embodiment;

[0049] Figure 4 This is a sensor structure diagram of a dust sensor in one embodiment;

[0050] Figure 5 This is an anti-interference transmission module in one embodiment.

[0051] Explanation of reference numerals in the attached figures

[0052] Wide-body vehicle body 000, battery box 010, battery bracket main beam mid-span 020, cable tray 021, control cabinet 030, reader / writer 031, nut 040, bolt hole 050, vibration sensor 100, acceleration sensor 110, strain sensor 200, armored optical cable 210, preload sensor 300, temperature sensor 400, dust sensor 500, metal air duct 510, waterproof and dustproof net 520, anti-interference transmission module 600, signal processing module 610, signal transmission module 620. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0054] The intelligent monitoring equipment for pure electric wide-body mining vehicles provided in this application embodiment, such as... Figure 1As shown, the system includes a vibration sensor 100, a strain sensor 200, a preload sensor 300, a temperature sensor 400, a dust sensor 500, an anti-interference transmission module 600, and a wide-body vehicle body 000. The anti-interference transmission module 600 is located in the control cabinet 030 of the wide-body vehicle body 000. The vibration sensor 100 includes four acceleration sensors 110, each of which is located on the plane where the corner of the battery box 010 of the wide-body vehicle body 000 is located. The strain sensor 200 is located at the mid-span 020 of the main beam of the battery bracket of the wide-body vehicle body 000 and at the bolt hole 050 of the wide-body vehicle body 000. The preload sensor 300 is located in the nut 040 at the corner of the battery box 010 of the wide-body vehicle body 000. The temperature sensor 400 is located in the middle of the side of the battery box 010. The dust sensor 500 is located on the top outer side of the control cabinet 030 of the wide-body vehicle body 000.

[0055] In one exemplary embodiment, an intelligent monitoring device for a pure electric wide-body mining vehicle is provided, the device comprising:

[0056] Vibration sensor 100, strain sensor 200, preload sensor 300, temperature sensor 400, dust sensor 500, anti-interference transmission module 600, and wide-body vehicle body 000;

[0057] The vibration sensor 100 includes four acceleration sensors 110. Each acceleration sensor 110 is disposed on the plane containing the corner of the battery box 010 of the wide-body vehicle 000, and the axis of each acceleration sensor 110 is parallel to the edge of the battery box 010. The vibration sensor 100 is used to transmit the collected vibration signals to the anti-interference transmission module 600 via a high-speed data mainline.

[0058] The strain sensor 200 is installed at the mid-span 020 of the main beam of the battery bracket of the wide-body vehicle 000 and at the bolt hole 050 of the wide-body vehicle 000, and is used to transmit the collected strain signal to the anti-interference transmission module 600.

[0059] The preload sensor 300 is installed in the nut 040 at the corner of the battery box 010 of the wide-body vehicle 000, and is used to transmit the torque signal to the anti-interference transmission module 600 through the data interface.

[0060] Temperature sensor 400 is located in the middle of the side of battery housing 010 and is used to transmit the temperature signal to anti-interference transmission module 600 after digital processing.

[0061] The dust sensor 500 is located on the top outer side of the control cabinet 030 of the wide-body vehicle 000, and is used to transmit the dust signal to the anti-interference transmission module 600 through the opto-isolator.

[0062] An anti-interference transmission module 600 is installed in the control cabinet 030 of the wide-body vehicle 000. It is used to process vibration signals, strain signals, torque signals, temperature signals, and dust signals to reduce interference before transmitting them to the operator's client. The anti-interference transmission module 600 employs an ARM+FPGA heterogeneous architecture.

[0063] Optionally, the vibration sensor 100 further includes: a plane at the corner of the battery box 010 where the acceleration sensor 110 is located, which is either a vertical plane or a horizontal plane at the corner, and the axis of the acceleration sensor 110 is parallel to the edge of the battery box 010; the acceleration sensor 110 is connected to the battery box 010 by bolts and is used to capture the vertical impact vibration and the lateral impact vibration of the battery box 010; the vibration signal collected by the acceleration sensor 110 is transmitted through a coaxial cable, the coaxial cable is covered with a metal corrugated tube, and is routed along the inner side of the frame of the wide-body vehicle 000, and enters the control cabinet 030 through an explosion-proof gland.

[0064] In this embodiment, the vibration sensor 100 includes four acceleration sensors 110, one of which is installed on the vertical plane (Z-axis) and the horizontal plane (X / Y-axis) at each of the four corner points of the battery housing. The sensor axis is parallel to the edge of the housing and is fastened with M6 stainless steel bolts to capture vertical and lateral impact vibrations of the battery. Signal transmission is achieved via a dedicated IEPE coaxial cable, which is sheathed in a metal corrugated tube and runs along the inner side of the vehicle frame, entering control cabinet 030 via an explosion-proof gland. The signal is connected to the IEPE signal conditioning module of the edge computing unit, converted into a digital signal by a 24-bit ADC, and then enters the FPGA timing synchronization unit of the anti-interference transmission module 600. The FPGA adds nanosecond-level timestamps to the data based on a 10MHz crystal oscillator and achieves spatiotemporal alignment of multi-sensor data through extended Kalman filtering (EKF). The preprocessed data is cached in the FPGA's internal FIFO and transmitted to the ARM processor of the anti-interference transmission module 600 via a high-speed data bus. The ARM processor runs wavelet packet decomposition, feature extraction, and other algorithms to extract the time-domain / frequency-domain features of the vibration signal. The feature data is finally transmitted to the on-board industrial control computer via the CANopen bus for fusion analysis.

[0065] Optionally, the strain sensor 200 further includes: when the strain sensor 200 is installed at the bolt hole 050 of the wide-body vehicle 000, the strain sensor 200 is installed within a 5mm radius around the bolt hole 050; the strain sensor 200 is installed in a cross-shaped distribution at the mid-span 020 of the main beam of the battery bracket and at the bolt hole 050 of the wide-body vehicle 000, and the strain sensor 200 is connected to the mid-span 020 of the main beam of the battery bracket and at the bolt hole 050 of the wide-body vehicle 000 by adhesive bonding.

[0066] In this embodiment, strain sensors 200 are arranged in a cross shape at the mid-span 020 (stress concentration zone) of the main beam of the battery bracket and 5mm around the bolt holes 050. They are bonded with epoxy resin adhesive, and the axis of the sensor grid area is aligned with the direction of the principal stress, forming a 3×3 grid monitoring array. These are connected in series via single-mode optical fibers, and the wavelength signals are collected by a 3dB coupler. After collection, the signals are connected to armored optical cable 210, which is laid along the bracket cable tray 021. After entering the control cabinet 030, it is connected to an FBG demodulator and transmitted via USB 3.0 to the ARM processor of the anti-interference transmission module 600. The strain data is then generated using a wavelength-strain conversion algorithm.

[0067] Optionally, the strain sensor 200 further includes: the grid axis of the strain sensor 200 is aligned with the principal stress direction of the battery bracket main beam mid-span 020 and the wide-body vehicle body 000, respectively, forming a 3*3 grid monitoring array, which is connected in series via single-mode optical fiber; the strain signal collected by the strain sensor 200 is collected by a coupler, connected to the armored optical cable 210, and then connected to the demodulator after entering the control cabinet 030, and transmitted to the anti-interference transmission module 600 through the connection interface in the demodulator; the armored optical cable 210 is laid along the cable groove 021 of the battery bracket main beam mid-span 020.

[0068] Optionally, the preload sensor 300 also includes: a nut 040 which is a wireless torque nut 040, and the nut 040 has a built-in piezoresistive sensor and an energy storage chip for real-time acquisition of preload data; the energy storage chip modulates the preload data into a modulation signal and sends the modulation signal to a reader 031 set on the surface of the control cabinet 030 through a transmission antenna; the reader 031 processes the modulation signal through an anti-collision algorithm to obtain preload data, and transmits the preload data to the anti-interference transmission module 600 through a data interface.

[0069] In this embodiment, the preload sensor 300 replaces the traditional bolt with an RFID wireless torque nut 040. This nut 040 incorporates a piezoresistive sensor and an energy storage chip, enabling real-time acquisition of preload data. The preload signal is modulated into an ASK signal by the chip and transmitted via a loop antenna. The signal penetrates the metal casing of the battery box 010 and is received by the RFID reader 031 on the surface of the control cabinet 030. After processing using an anti-collision algorithm, the torque data is transmitted to the ARM processor of the anti-interference transmission module 600 via a data interface. After correction using a temperature compensation model, the data is stored in a cache.

[0070] Optionally, the temperature sensor 400 further includes: a location point on the middle of the side of the battery housing 010, which is one-third of the distance from the top to the bottom of the battery housing 010; and a sensor probe of the temperature sensor 400 with a distance of 5 mm between it and the outer shell of the battery housing 010.

[0071] In this embodiment, the temperature sensor 400 is vertically embedded in the middle of the side of the battery housing 010 (at one-third of the height from the top). The sensor probe maintains a 5mm gap with the housing shell to avoid direct contact with the battery surface, which could cause temperature distortion. This allows for real-time monitoring of the temperature rise during battery pack operation. The temperature sensor 400 is connected to the temperature acquisition module inside the control cabinet 030 via a PTFE shielded cable. The signal is converted into a voltage signal using a Wheatstone bridge circuit, digitized by a 24-bit ADC, and then sent to the ARM processor of the anti-interference transmission module 600.

[0072] Optionally, the temperature sensor 400 also includes: the temperature data collected by the temperature sensor 400 is connected to the temperature acquisition module in the control cabinet 030 through a shielded wire; the temperature acquisition module uses a Wheatstone bridge circuit to convert the temperature data into a voltage signal, and after digital processing of the voltage signal, it is transmitted to the anti-interference transmission module 600.

[0073] Optionally, the dust sensor 500 also includes: a metal air duct 510, which is connected to the outside after the inner wall of the metal air duct 510 is smoothed, and a waterproof and dustproof mesh 520 is provided at the inlet of the metal air duct 510; the dust sensor 500 collects dust concentration data through the metal air duct 510 and converts the dust concentration data into a dust signal.

[0074] In this embodiment, the dust sensor 500 is installed on the top outer side of the control cabinet 030, and is connected to the outside through a metal air duct 510 with a smooth inner wall. A waterproof and dustproof net 520 is installed at the inlet of the air duct to prevent large particles from clogging it. This position avoids obstruction by the battery box 010, allowing for accurate monitoring of real-time dust concentration during mine operations. The dust sensor 500 collects dust signals through the metal air duct 510. The internal MCU (microcontroller unit) converts the concentration data into a UART signal, which is then transmitted to the ARM processor of the anti-interference transmission module 600 via an opto-isolator to eliminate common-mode interference.

[0075] Optionally, the anti-interference transmission module 600 further includes: a signal processing module 610 and a signal transmission module 620; the signal processing module 610 is used to add timestamps to the vibration signal, strain signal, torque signal, temperature signal and dust signal, and to perform spatiotemporal processing on the vibration signal, strain signal, torque signal, temperature signal and dust signal to obtain optimized vibration signal, optimized strain signal, optimized torque signal, optimized temperature signal and optimized dust signal.

[0076] In this embodiment, the signal processing module 610 is constructed using an ARM+FPGA heterogeneous architecture. The module uses the FPGA to add nanosecond-level timestamps to multi-source signals such as vibration signals, strain signals, torque signals, temperature signals, and dust signals. Spatiotemporal alignment is achieved through extended Kalman filtering, and signal denoising is completed by combining wavelet packet decomposition and CNN. Then, multi-scale features are extracted by the ARM processor to obtain optimized vibration signals, optimized strain signals, optimized torque signals, optimized temperature signals, and optimized dust signals.

[0077] Optionally, the anti-interference transmission module 600 further includes: a signal transmission module 620; the signal transmission module 620 is used to transmit optimized vibration signals, optimized strain signals, optimized torque signals, optimized temperature signals, and optimized dust signals to the worker's client through anti-interference protection hardware; the architecture of the signal transmission module 620 is a dual-redundant architecture of high-speed data bus and fiber optic ring network; the anti-interference protection hardware includes shielded cables and opto-isolators.

[0078] In this embodiment, the signal transmission module 620 adopts a dual-redundant architecture of CANopen bus and fiber optic ring network, coupled with hardware protection such as shielded cables and opto-isolation, to achieve low data processing latency and low transmission error rate in the environment of high dust and strong electromagnetic interference in the mine, thus meeting the high reliability requirements of battery installation stability monitoring for pure electric mining wide-body vehicles.

[0079] The various modules in the intelligent monitoring device of the aforementioned pure electric wide-body mining vehicle can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device in hardware form, or stored in the memory of a computer device in software form, so that the processor can call and execute the corresponding operations of each module.

[0080] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0081] Those skilled in the art will understand that all or part of the processes in the devices of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above devices. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0082] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. An intelligent monitoring device for a pure electric wide-body mining vehicle, characterized in that, The equipment includes vibration sensors, strain sensors, preload sensors, temperature sensors, dust sensors, an anti-interference transmission module, and a wide-body vehicle body, wherein: The vibration sensor includes four acceleration sensors, each of which is located on the plane where the corner of the battery box of the wide-body vehicle is located, and the axis of each acceleration sensor is parallel to the edge of the battery box; The strain sensor is installed at the mid-span of the main beam of the battery bracket of the wide-body vehicle and at the bolt holes of the wide-body vehicle. The preload sensor is installed in the nut at the corner of the battery box of the wide-body vehicle. The temperature sensor is located in the middle of the side of the battery box. The dust sensor is located on the top outer side of the control cabinet of the wide-body vehicle. The anti-interference transmission module is installed in the control cabinet of the wide-body vehicle and is used to process vibration signals, strain signals, torque signals, temperature signals and dust signals to prevent interference before transmitting them to the staff's client.

2. The intelligent monitoring equipment for a pure electric wide-body mining vehicle according to claim 1, characterized in that, The plane of the corner of the battery box where the accelerometer is located is either the vertical plane of the corner or the horizontal plane of the corner, and the axis of the accelerometer is parallel to the edge of the battery box. The accelerometer is connected to the battery housing by bolts.

3. The intelligent monitoring equipment for a pure electric wide-body mining vehicle according to claim 1, characterized in that, When the strain sensor is installed at the bolt hole of the wide-body vehicle, the strain sensor is installed within a 5mm radius around the bolt hole. The strain sensors are arranged in a cross shape at the mid-span of the main beam of the battery bracket and at the bolt holes of the wide-body vehicle, and the strain sensors are connected to the mid-span of the main beam of the battery bracket and at the bolt holes of the wide-body vehicle by adhesive bonding.

4. The intelligent monitoring equipment for a pure electric wide-body mining vehicle according to claim 1, characterized in that, The grid axis of the strain sensor is aligned with the main stress direction of the battery bracket main beam mid-span and the wide-body vehicle body, respectively, and forms a 3*3 grid monitoring array, which is connected in series through single-mode optical fiber; The strain sensor is connected to the armored optical cable; the armored optical cable is laid along the cable groove in the middle of the main beam of the battery bracket.

5. The intelligent monitoring equipment for a pure electric wide-body mining vehicle according to claim 1, characterized in that, The nut is a wireless torque nut, and the nut has a built-in piezoresistive sensor and an energy storage chip; The control cabinet surface is equipped with a reader / writer.

6. The intelligent monitoring device for a pure electric wide-body mining vehicle according to claim 1, characterized in that, The temperature sensor is positioned at a point one-third of the distance from the top to the bottom of the battery housing on the middle of the side of the battery housing. The distance between the temperature sensor probe and the battery casing is 5mm.

7. The intelligent monitoring equipment for a pure electric wide-body mining vehicle according to claim 1, characterized in that, The temperature sensor is connected to a shielded wire, and the shielded wire is connected to the control cabinet. The temperature sensor includes a Wheatstone bridge circuit.

8. The intelligent monitoring device for a pure electric wide-body mining vehicle according to claim 1, characterized in that, The dust sensor further includes a metal air duct, wherein: The metal air duct is connected to the outside after its inner wall is smoothed, and a waterproof and dustproof net is installed at the inlet of the metal air duct.

9. The intelligent monitoring device for a pure electric wide-body mining vehicle according to claim 1, characterized in that, The anti-interference transmission module further includes a signal processing module and a signal transmission module, wherein: The signal processing module is connected to the signal transmission module.

10. The intelligent monitoring device for a pure electric wide-body mining vehicle according to claim 9, characterized in that, The signal transmission module also includes anti-interference protection hardware, wherein: The anti-interference protection hardware includes shielded cables and opto-isolators; The signal transmission module has a dual-redundancy architecture consisting of a high-speed data bus and an optical fiber ring network.

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