Wireless intelligent monitoring system and method of battery replacement type pure electric excavator

Abstract

The invention provides a wireless intelligent monitoring system and method of a battery replacement type pure electric excavator, a frame is provided with a locking mechanism used for fixing a battery frame, the system comprises a sensing visual system which is installed on a bracket at the bottom of the locking mechanism and comprises an AI host, a wireless communication module and a wireless communication module, the visual acquisition devices are respectively arranged at at least four positions around the bracket, and the monitoring display receives wireless signals and displays the assembly alignment state of video pictures in real time; the AI host is used for processing a plurality of groups of monitoring videos collected at different feature positions according to time periods, and displaying the processed monitoring video of the battery replacement process on the video display device; the battery replacement process monitoring video is used for displaying the complete battery replacement process of the vehicle in the monitoring space; and the control execution mechanism is used for controlling the battery frame to be accurately placed in the locking mechanism, and at least the technical effects that a driver is helped to accurately replace the battery, and the battery replacement time is shortened are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of collaborative positioning learning of multiple unmanned systems, and in particular to a wireless intelligent monitoring system and method for a battery-swap pure electric excavator. Background Art

[0002] The battery-swap excavator is a new technology product for electric excavators that has emerged in the past two years. It mainly solves the problems of difficult and slow charging during mining operations and ensures operational continuity.

[0003] Usually an excavator is equipped with two sets of battery system assemblies, which mainly adopt the forklift battery replacement method. Its working principle and process are: when the battery system is about to run out of power during the operation of the excavator, the BMS battery management system alarms and reminds the driver that the remaining power has reached the minimum alarm point. At this time, the excavator needs to stop working and replace the battery. The driver needs to use a forklift to lift the battery system on the excavator, and then replace it with another fully charged battery system on the ground. In this process, it is entirely up to the driver to observe with the naked eye in the forklift cab to put the battery frame into the battery locking mechanism of the excavator frame. The disadvantage of this structure is that the driver is sitting in the forklift cab to operate, and the view outside is not very clear. It is inconvenient to align with the locking mechanism guide column during operation. The locking mechanism cannot be seen clearly when the battery frame is lowered into position, and it is easy to collide with the excavator frame locking mechanism and the battery frame shell. In addition, the battery replacement time is long, the efficiency is low, and it is unsafe. Summary of the Invention

[0004] Each exemplary embodiment of the present application provides a wireless intelligent monitoring system and method for a battery-swap pure electric excavator, which at least has the technical effect of helping the driver to accurately swap batteries and reduce the battery swap time.

[0005] According to one aspect of the present application, each exemplary embodiment of the present application provides a wireless intelligent monitoring system for a battery-swap pure electric excavator, wherein the vehicle frame is provided with a locking mechanism for fixing the battery frame, and the system includes: A sensor vision system is mounted on a bracket at the bottom of the locking mechanism, comprising an AI host, vision acquisition devices installed at at least four locations around the bracket, an ultrasonic sensor electrically connected to the AI ​​host, and a monitoring display installed in the cab. The AI ​​host receives signals from the vision acquisition devices at at least four locations and the ultrasonic sensor, analyzes and transmits them to the monitoring display, and the monitoring display receives wireless signals and displays the assembly alignment status of the video screen in real time. The AI ​​host is used to process multiple sets of monitoring videos collected at different characteristic locations according to time periods, and display the processed battery swap process monitoring video on the video display device; the battery swap process monitoring video is used to display the complete battery swap process of the vehicle in the monitoring space; The control actuator is installed at the bottom of the locking mechanism and is used to control the battery frame to be accurately placed in the locking mechanism.

[0006] According to another aspect of the present application, a wireless intelligent monitoring and battery replacement method for a battery-replacement pure electric excavator is also claimed, which is applicable to the above-mentioned method, comprising: Step 1: When the battery box is about to run out of power during excavator operation, the BMS alarm reminds the driver that the remaining power has reached the minimum alarm point. At this time, the excavator needs to stop working and replace the battery. The driver lifts the battery box from the excavator with a forklift and replaces it with another fully charged battery box on the ground. In step 2, the driver manipulates the control actuator to move and align the battery frame. The AI ​​host processes multiple sets of monitoring videos collected at different characteristic positions according to time periods and displays the processed monitoring video of the battery replacement process on the monitoring display. The monitoring display receives wireless signals to display the video in real time and reminds the driver of the assembly alignment status of the battery frame and the battery locking mechanism of the excavator frame. When the front side of the battery frame and the upper frame approach the set range, the ultrasonic sensor installed at the bottom of the frame determines and the warning device buzzes to give a timely reminder. Step three: The driver aligns the battery frame according to the monitoring display and places it into the locking mechanism to complete the battery replacement installation.

[0007] This application has the following beneficial effects: Ultrasonic sensors, visual systems and control actuators are installed at the bottom of the locking mechanism, and the display monitoring device is installed on the front instrument panel in the forklift cab. The driver can use the wireless intelligent monitoring system to accurately place the battery frame into the locking mechanism of the excavator frame. When the battery frame exceeds the effective placement range, the system will issue an early warning and remind the driver to quickly place the battery frame into the locking mechanism, effectively preventing collisions, improving the battery replacement efficiency, and reducing the battery replacement time. It mainly solves the problems of collisions between the battery frame and the frame bottom support locking mechanism when the driver operates the battery replacement in the existing technology, high labor intensity and slow battery replacement speed of the driver. It can realize accurate battery replacement for the driver, reduce the battery replacement time, improve the battery replacement efficiency, and reduce the labor intensity of the driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 A schematic diagram of a control system according to an embodiment of the present invention; Figure 2 This is a flow chart of wireless intelligent monitoring of a battery-swap pure electric excavator according to an embodiment of the present invention.

[0009] Figure numerals: 1. AI host; 2. Intelligent monitoring display; 3. Power module; 4. Warning device; 5. Antenna; 6. Ultrasonic sensor; 7. Left wireless camera; 8. Right wireless camera; 9. Front wireless camera; 10. Rear wireless camera. DETAILED DESCRIPTION

[0010] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the preferred embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0011] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0012] like Figure 1 As shown, the present invention provides a wireless intelligent monitoring system for a battery-swap pure electric excavator, wherein the vehicle frame is provided with a locking mechanism for fixing the battery frame, and the system comprises: A sensor vision system is mounted on a bracket at the bottom of the locking mechanism, comprising an AI host, vision acquisition devices installed at at least four locations around the bracket, an ultrasonic sensor electrically connected to the AI ​​host, and a monitoring display installed in the cab. The AI ​​host receives signals from the vision acquisition devices at at least four locations and the ultrasonic sensor, analyzes and transmits them to the monitoring display, and the monitoring display receives wireless signals and displays the assembly alignment status of the video screen in real time. The AI ​​host is used to process multiple sets of monitoring videos collected at different characteristic locations according to time periods, and display the processed battery swap process monitoring video on the video display device; the battery swap process monitoring video is used to display the complete battery swap process of the vehicle in the monitoring space; The control actuator is installed at the bottom of the locking mechanism and is used to control the battery frame to be accurately placed in the locking mechanism.

[0013] In one embodiment, a warning device electrically connected to the AI ​​host is further included, and is configured to sound a buzzer to provide a timely reminder when the front side of the battery box and the upper frame approach a set range through an ultrasonic sensor installed at the bottom of the frame.

[0014] In one embodiment, the visual acquisition devices at at least four locations include: The video capture device at the first position is used to display the battery frame entering the first preset battery replacement position and / or leaving the first preset battery replacement position; and / or The video capture device at the second position is used to display the battery frame being lifted to a first preset battery replacement height and / or lowered to a position away from the first preset battery replacement height; and / or The video capture device at the third position is used to display the battery frame entering the second preset battery replacement position and / or leaving the second preset battery replacement position; and / or The video capture device at the fourth position is used to display that the battery frame is lifted to reach the first preset battery replacement height and / or the battery frame is lifted away from the first preset battery replacement height; The first preset battery replacement position is the coordinate of the top surface of the carrier for accommodating the battery frame, the second preset battery replacement position is the coordinate of the bottom of the carrier for accommodating the battery frame, and the first preset battery replacement height is the height of the carrier for accommodating the battery frame.

[0015] It should be noted that, in this embodiment, the visual acquisition devices at at least four positions are configured as four wireless cameras electrically connected to the AI ​​host, and are respectively installed in the front wireless camera, rear wireless camera, left wireless camera, and right wireless camera in the four directions of the front, rear, left, and right in the horizontal direction of the bracket.

[0016] For a complete example, refer to Figure 1 The AI ​​host 1 is installed on the excavator body, mainly by collecting signals from the ultrasonic sensor 6 installed at the bottom of the frame, and installed in the front, rear, left and right directions of the bottom bracket: left wireless camera 7, right wireless camera 8, front wireless camera 9, and rear wireless camera 10, which are equipped with a power module 3 for powering the AI ​​host. The image signal passes through the software algorithm of the AI ​​host 1, and the video signal is wirelessly transmitted to the intelligent monitoring display 2 in the cab. The intelligent monitoring display 2 receives the wireless signal and displays the video picture in real time and reminds the driver of the assembly alignment status of the battery frame and the battery locking mechanism of the excavator upper frame. When the front side of the battery frame and the upper frame are close to the set range, it is judged by the ultrasonic sensor 6 installed at the bottom of the frame, and the warning device 4 buzzes to remind in time, so that accurate and fast battery replacement can be achieved.

[0017] This application also claims protection for a wireless intelligent monitoring and battery replacement method for a battery-replacing pure electric excavator, which is applicable to the above-mentioned device.

[0018] Step 1: When the battery box is about to run out of power during excavator operation, the BMS alarm reminds the driver that the remaining power has reached the minimum alarm point. At this time, the excavator needs to stop working and replace the battery. The driver lifts the battery box from the excavator with a forklift and replaces it with another fully charged battery box on the ground. In step 2, the driver manipulates the control actuator to move and align the battery frame. The AI ​​host processes multiple sets of monitoring videos collected at different characteristic positions according to time periods and displays the processed monitoring video of the battery replacement process on the monitoring display. The monitoring display receives wireless signals to display the video in real time and reminds the driver of the assembly alignment status of the battery frame and the battery locking mechanism of the excavator frame. When the front side of the battery frame and the upper frame approach the set range, the ultrasonic sensor installed at the bottom of the frame determines and the warning device buzzes to give a timely reminder. Step three: The driver aligns the battery frame according to the monitoring display and places it into the locking mechanism to complete the battery replacement installation.

[0019] The above is only a preferred embodiment of the present application. It should be noted that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be considered as the scope of protection of the present application. Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications based on these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A wireless intelligent monitoring system for a battery-swap pure electric excavator, wherein the frame is provided with a locking mechanism for fixing the battery frame, characterized in that: The system comprises: A sensor vision system is mounted on a bracket at the bottom of the locking mechanism, comprising an AI host, vision acquisition devices installed at at least four locations around the bracket, an ultrasonic sensor electrically connected to the AI ​​host, and a monitoring display installed in the cab. The AI ​​host receives signals from the vision acquisition devices at at least four locations and the ultrasonic sensor, analyzes and transmits them to the monitoring display, and the monitoring display receives wireless signals and displays the assembly alignment status of the video screen in real time. The AI ​​host is used to process multiple sets of monitoring videos collected at different characteristic locations according to time periods, and display the processed battery swap process monitoring video on the video display device; the battery swap process monitoring video is used to display the complete battery swap process of the vehicle in the monitoring space; The control actuator is installed at the bottom of the locking mechanism and is used to control the battery frame to be accurately placed in the locking mechanism.

2. The wireless intelligent monitoring system for a battery-swap pure electric excavator according to claim 1 is characterized in that: It also includes a warning device electrically connected to the AI ​​host, which is configured to buzz and give timely reminders when the front side of the battery frame and the upper frame approach a set range through the ultrasonic sensor installed at the bottom of the frame.

3. The wireless intelligent monitoring system for a battery-swap pure electric excavator according to claim 1 is characterized in that: The visual acquisition devices at at least 4 positions include: The video capture device at the first position is used to display the battery frame entering the first preset battery replacement position and / or leaving the first preset battery replacement position; and / or The video capture device at the second position is used to display the battery frame being lifted to a first preset battery replacement height and / or lowered to a position away from the first preset battery replacement height; and / or The video capture device at the third position is used to display the battery frame entering the second preset battery replacement position and / or leaving the second preset battery replacement position; and / or The video capture device at the fourth position is used to display that the battery frame is lifted to reach the first preset battery replacement height and / or the battery frame is lifted away from the first preset battery replacement height; The first preset battery replacement position is the coordinate of the top surface of the carrier for accommodating the battery frame, the second preset battery replacement position is the coordinate of the bottom of the carrier for accommodating the battery frame, and the first preset battery replacement height is the height of the carrier for accommodating the battery frame.

4. The wireless intelligent monitoring system for a battery-swap pure electric excavator according to claim 3 is characterized in that: The visual acquisition devices at at least four positions are configured as four wireless cameras electrically connected to the AI ​​host, and are respectively installed in the front wireless camera, rear wireless camera, left wireless camera, and right wireless camera in the four horizontal directions of the bracket: front, rear, left, and right.

5. A wireless intelligent monitoring and battery replacement method for a battery-replacement pure electric excavator, applicable to the method according to any one of claims 1 to 3, characterized in that: Step 1: When the battery box is about to run out of power during excavator operation, the BMS alarm reminds the driver that the remaining power has reached the minimum alarm point. At this time, the excavator needs to stop working and replace the battery. The driver lifts the battery box from the excavator with a forklift and replaces it with another fully charged battery box on the ground. In step 2, the driver manipulates the control actuator to move and align the battery frame. The AI ​​host processes multiple sets of monitoring videos collected at different characteristic positions according to time periods and displays the processed monitoring video of the battery replacement process on the monitoring display. The monitoring display receives wireless signals to display the video in real time and reminds the driver of the assembly alignment status of the battery frame and the battery locking mechanism of the excavator frame. When the front side of the battery frame and the upper frame approach the set range, the ultrasonic sensor installed at the bottom of the frame determines and the warning device buzzes to give a timely reminder. Step three: The driver aligns the battery frame according to the monitoring display and places it into the locking mechanism to complete the battery replacement installation.

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