Anti-collision system for electric pallet truck, and Anti-collision method

Abstract

An anti-collision system for an electric pallet truck, and an anti-collision method. The anti-collision system comprises an elongated flexible base body and a plurality of flexible convex teeth, wherein the flexible convex teeth are arranged on one side of the flexible base body and are sequentially arranged in the direction of length of the flexible base body, tooth grooves are formed between adjacent flexible convex teeth, the flexible base body is arranged around the outer side of a chassis of the electric pallet truck, and the flexible convex teeth are located between the flexible base body and the chassis. The anti-collision system can effectively prevent collisions or reduce collision severity, thereby improving the operational safety of the electric pallet truck. When a buffer component of the anti-collision system is arranged around the outer side of a curved component that is protected against collision, the buffer component can fit well with a curved position of the component that is protected against collision, thereby ensuring an anti-collision effect. Moreover, the buffer component can be bent freely on the basis of the shape of the component that is protected against collision, thereby being suitable for chassis of different shapes, and avoiding the problems of high cost and slow delivery caused by separately manufacturing processing molds for anti-collision components for the chassis of different shapes.

Description

Collision avoidance systems and methods for electric pallet trucks

[0001] This application claims priority to Chinese Patent Application No. PCT / CN2024 / 132325, filed on November 15, 2024, entitled “Anti-collision system and method for electric pallet truck”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of electric pallet truck technology, specifically to an anti-collision system and method for electric pallet trucks. Background Technology

[0003] Electric pallet trucks are commonly used cargo loading and unloading equipment, characterized by their maneuverability, making them frequently used in confined spaces. However, when operating in such spaces, especially when reversing, the operator's view is obstructed, increasing the risk of collisions with nearby people (including the operator), objects, and other obstacles. For example, the truck could easily run over the feet of nearby individuals (see Figure 9), posing a significant safety hazard. Adding a buffer enclosure to the outside of the electric pallet truck chassis can improve safety; however, electric pallet truck chassis come in various shapes. Currently, to ensure a good fit between the buffer enclosure and the chassis, different shapes of buffer enclosures need to be manufactured for different chassis designs. This necessitates the use of numerous sets of buffer enclosure manufacturing molds, resulting in high costs and slow delivery.

[0004] In view of this, how to improve the applicability of the cushioning components is a technical problem that needs to be solved by those skilled in the art. In addition, the operational safety of electric pallet trucks also needs to be improved. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides an anti-collision system for an electric pallet truck. The anti-collision system includes a buffer component, which comprises a long strip-shaped flexible substrate and a plurality of flexible protrusions. The flexible protrusions are disposed on one side of the flexible substrate and are sequentially arranged along the length of the flexible substrate. A tooth groove is formed between adjacent flexible protrusions. The flexible substrate surrounds the outer side of the chassis of the electric pallet truck, and the flexible protrusions are located between the flexible substrate and the chassis.

[0006] An alternative embodiment of the anti-collision system for an electric pallet truck, wherein the flexible substrate and the flexible protrusions are integrally formed.

[0007] An alternative embodiment of the collision avoidance system for an electric pallet truck includes a collision avoidance sensor capable of detecting collisions or proximity between the electric pallet truck and an obstacle;

[0008] The anti-collision sensor is integrally formed with the buffer component; or, the buffer component has a mounting notch, and the anti-collision sensor is embedded in the mounting notch; or, the buffer component has a mounting hole, and the anti-collision sensor is embedded in the mounting hole.

[0009] An optional embodiment of the collision avoidance system for an electric pallet truck includes a controller that is communicatively connected to the collision avoidance sensor to receive impact or proximity signals detected by the collision avoidance sensor. The controller includes a safety module that can generate control commands to stop the electric pallet truck or move it away from the obstacle based on the impact or proximity signal.

[0010] An optional implementation of the anti-collision system for an electric pallet truck includes a controller comprising a user login module and a verification and authorization module. The verification and authorization module pre-stores user information and is communicatively connected to the login module to verify the logged-in user information and authorize the logged-in user to perform operations.

[0011] An optional implementation of the anti-collision system for an electric pallet truck includes a controller comprising a fault monitoring module, an alarm module, and a protection module. The fault monitoring module is capable of monitoring faults in the anti-collision sensor, the controller, and the communication connection between the controller and the anti-collision sensor. The alarm module is communicatively connected to the fault monitoring module to issue an alarm based on the fault signal detected by the fault monitoring module. The protection module is communicatively connected to the fault monitoring module to generate a control command to stop the electric pallet truck based on the fault signal detected by the fault monitoring module.

[0012] An optional implementation of the collision avoidance system for an electric pallet truck includes a controller comprising a motion monitoring module capable of monitoring the movement of the electric pallet truck. The collision avoidance system includes a remote server comprising a usage analysis module. The usage analysis module is wirelessly connected to the collision avoidance sensor, the fault detection module, and the motion monitoring module to analyze collisions or proximity incidents between the electric pallet truck and obstacles, fault conditions of the collision avoidance sensor, fault conditions of the controller, connection faults between the collision avoidance sensor and the controller, and the movement of the electric pallet truck. A report generation module is communicatively connected to the usage analysis module to generate a usage report and operation and maintenance recommendations for the electric pallet truck based on the analysis results of the usage analysis module.

[0013] In one optional implementation of the collision avoidance system for an electric pallet truck, the remote server includes a remote alarm module. The remote alarm module is communicatively connected to the usage analysis module to issue an alarm when the electric pallet truck frequently collides with or approaches a preset distance from an obstacle, when the collision avoidance sensor malfunctions, when the controller malfunctions, or when the communication connection between the collision avoidance sensor and the controller fails.

[0014] In one optional implementation of the collision avoidance system for an electric pallet truck, the remote server includes a storage module, and the controller includes a user login module. The storage module is wirelessly connected to the user login module and the usage analysis module to associate and store the current usage status of the electric pallet truck and the currently logged-in user information.

[0015] This application also provides a collision avoidance method for electric pallet trucks. By installing a collision avoidance sensor on the electric pallet truck, the collision avoidance sensor detects the collision or approach of the electric pallet truck with an obstacle. When the collision avoidance sensor detects that the electric pallet truck has collided with or approached an obstacle to a preset distance, the controller automatically controls the electric pallet truck to stop moving or move away from the obstacle.

[0016] In one alternative implementation of the collision avoidance method for electric pallet trucks, the controller authorizes the user to operate only after the user logs in and passes authentication.

[0017] An optional embodiment of the collision avoidance method for electric pallet trucks involves fault monitoring of the collision avoidance sensor, the controller, and the communication connection between the controller and the collision avoidance sensor. When a fault is detected, the controller automatically stops the electric pallet truck and issues an alarm.

[0018] An optional implementation of the collision avoidance method for electric pallet trucks involves monitoring and analyzing the usage of the electric pallet trucks. A remote server generates a usage report and operation and maintenance suggestions for the electric pallet trucks based on the usage information. The usage information includes collisions or proximity incidents between the electric pallet trucks and obstacles, malfunctions of the collision avoidance sensors, malfunctions of the controller, communication connection failures between the collision avoidance sensors and the controller, and the movement of the electric pallet trucks.

[0019] In one optional implementation of the collision avoidance method for electric pallet trucks, the remote server issues an alarm when the electric pallet truck frequently collides with or approaches a preset distance from an obstacle, when the collision avoidance sensor malfunctions, when the controller malfunctions, or when the communication connection between the collision avoidance sensor and the controller fails.

[0020] One alternative implementation of the collision avoidance method for electric pallet trucks involves associating and storing the current usage status of the electric pallet truck with the currently logged-in user information.

[0021] The anti-collision system provided in this application has a buffer component with a flexible substrate and flexible protrusions on one side of the flexible substrate. The flexible protrusions are arranged sequentially along the length of the flexible substrate, and grooves are formed between adjacent flexible protrusions. Therefore, when the buffer component is installed around the outside of the curved chassis of the electric pallet truck, it can fit well with the curved position of the chassis of the electric pallet truck, thereby ensuring the anti-collision effect. Moreover, it can be bent at will according to the shape of the chassis of the electric pallet truck, so it can be used for electric pallet truck chassis of different shapes. This avoids the problems of high cost and slow delivery caused by separately setting anti-collision component processing molds for different shapes of electric pallet truck chassis.

[0022] In addition, the collision avoidance system provided in this application achieves the technical effect of effectively preventing or mitigating collisions and improving the operational safety of electric pallet trucks by setting up intelligent components such as collision avoidance sensors and controllers. Attached Figure Description

[0023] Figure 1 is a perspective view of an embodiment of an electric pallet truck equipped with the anti-collision system provided in this application;

[0024] Figure 2 is a disassembled diagram of the location where the buffer component is installed in Figure 1;

[0025] Figure 3 is a perspective view of an embodiment of the buffer component provided in this application;

[0026] Figure 4 is a schematic diagram of the buffer component shown in Figure 3 surrounding the outside of the chassis of the electric pallet truck;

[0027] Figure 5 is a schematic diagram of the anti-collision sensor being embedded in the mounting notch of the flexible substrate of the buffer component;

[0028] Figure 6 is a perspective view of an embodiment of the buffer component provided in this application;

[0029] Figure 7 is a modular schematic diagram of an embodiment of the collision avoidance system provided in this application;

[0030] Figure 8 is a schematic diagram showing the collision between an existing electric pallet truck and the operator's feet during the reverse process.

[0031] The reference numerals in the attached drawings are explained as follows: 1 Anti-collision sensor, 2 Buffer component, 201 Flexible substrate, 202 Flexible protrusion, 203 Mounting notch, 204 Mounting hole, 205 Thickened area, 3 U-shaped clamping component, 4 Chassis, 5 L-shaped clamping component. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] As shown in Figures 1 and 2, the anti-collision system of the electric pallet truck provided in this application includes a buffer component 2. The buffer component 2 surrounds the outer side of the chassis of the electric pallet truck. Since the buffer component must have a certain thickness, when the buffer component surrounds the outer side of the chassis of the electric pallet truck, it must protrude beyond the outer side of the chassis of the electric pallet truck. Specifically, it is advisable to protrude 8cm-10cm beyond the outer side of the chassis of the electric pallet truck. If it protrudes too much, it will make the electric pallet truck less flexible; if it protrudes too little, the buffering effect will be poor.

[0034] As shown in Figures 3 and 4, the buffer component 2 includes a long strip-shaped flexible substrate 201 and multiple flexible protrusions 202. The length of the flexible substrate is greater than its width and thickness. The flexible protrusions are disposed on one side of the flexible substrate in the thickness direction. The flexible protrusions are arranged sequentially along the length direction of the flexible substrate, and grooves are formed between adjacent flexible protrusions. The flexible substrate 201 surrounds the outer side of the chassis 4 of the electric pallet truck, and the flexible protrusions 202 are located between the flexible substrate 201 and the chassis 4.

[0035] This type of buffer component, when installed around the outside of the curved chassis of an electric pallet truck, can fit well with the curvature of the chassis, thus ensuring the anti-collision effect. Moreover, it can be bent freely according to the shape of the electric pallet truck chassis, so it can be used for electric pallet truck chassis of different shapes. This avoids the problems of high cost and slow delivery caused by the need to make separate anti-collision component processing molds for different shapes of electric pallet truck chassis.

[0036] Specifically, the flexible substrate and flexible protrusions can be integrally molded, meaning that the buffer component can be a one-piece structure, for example, it can be integrally injection molded.

[0037] Specifically, the flexible protrusions can be distributed at equal or unequal intervals. That is, the width of the grooves between adjacent flexible protrusions can be the same or different.

[0038] Specifically, the material of the cushioning component can be a flexible material with good cushioning performance, such as rubber or foam. The materials of the flexible substrate and the flexible protrusions can be the same or different.

[0039] As for the installation structure of the buffer component 2, it can be flexibly designed, with a preferred installation structure that facilitates disassembly and replacement of the buffer component. For example, in the embodiment shown in Figure 2, the buffer component 2 is installed on the outside of the chassis of the electric pallet truck by means of clamping parts and threaded fasteners. More specifically, in Figure 2, the buffer component 2 is U-shaped, and the U-shaped buffer component includes a horizontal plate portion and two vertical plate portions. The two vertical plate portions are respectively attached to the first and second outer sides of the chassis 4 of the electric pallet truck, and the horizontal plate portion is attached to the third outer side of the chassis 4 of the electric pallet truck. A U-shaped clamping part 3 and two L-shaped clamping parts 5 are provided (only one is shown in the figure). The U-shaped clamping part includes a horizontal part and two vertical parts. The horizontal part presses against the outside of the horizontal plate portion of the buffer component and is fastened by threads. The first L-shaped clamping component secures the horizontal plate portion of the buffer component to the third outer side of the chassis. Two vertical portions press against the outer sides of the two vertical plates of the buffer component, and are then fixed to the first and second outer sides of the chassis using threaded fasteners. The second L-shaped clamping component includes one horizontal portion and one vertical portion. The vertical portions of the two L-shaped clamping components press against the outer sides of the two vertical plates of the buffer component, and are then fixed to the first and second outer sides of the chassis using threaded fasteners. The horizontal portions of the two L-shaped clamping components press against the outer sides of the fourth side of the chassis (opposite to the third side) and are fixed to the fourth side using threaded fasteners. Alternatively, the L-shaped clamping component can be replaced with an I-shaped clamping component. An I-shaped clamping component includes two horizontal portions and one vertical portion. The two horizontal portions are fixed to the outer sides of the third and fourth sides of the chassis, and the vertical portion is fixed to the outer sides of the vertical plates of the buffer component. The aforementioned L-shaped and I-shaped clamping components provide reinforcement and protect against structural damage caused by impacts during vehicle operation.

[0040] As shown in Figure 2, the collision avoidance system also includes a collision avoidance sensor 1. The collision avoidance sensor 1 is installed at locations where the electric pallet truck is prone to colliding with obstacles, such as the outer side of the electric pallet truck's chassis. If multiple locations on the electric pallet truck are prone to colliding with obstacles, collision avoidance sensors can be installed at multiple locations where collisions are likely. The collision avoidance sensor 1 can detect collisions or approaching obstacles between the electric pallet truck and obstacles.

[0041] Specifically, collision avoidance sensors can be any component capable of detecting impacts or proximity, such as pressure collision avoidance sensors, proximity collision avoidance sensors, microswitches, and radar collision avoidance sensors. The detection by collision avoidance sensors is real-time.

[0042] For pressure collision avoidance sensors, when the pressure detected by the pressure collision avoidance sensor is greater than the preset threshold, it will emit a collision signal and transmit the collision signal to the controller. The controller can determine that the electric pallet truck has collided with the obstacle by receiving the collision signal. Furthermore, it can calculate the magnitude of the impact force based on the collision signal and thus determine the degree of impact. It can also determine the area where the collision with the obstacle occurred based on the position of the pressure collision avoidance sensor that transmitted the collision signal.

[0043] For proximity collision avoidance sensors, when the proximity collision avoidance sensor detects a distance less than a preset threshold, it will send a proximity signal and transmit the proximity signal to the controller. The controller can determine that the electric pallet truck is very close to the obstacle by receiving the proximity signal. Furthermore, it can determine the area close to the obstacle based on the position of the proximity collision avoidance sensor that transmits the proximity signal.

[0044] The collision avoidance sensor 1 and the buffer component 2 can be integrally formed, or they can be assembled onto the buffer component 2.

[0045] In the embodiment shown in Figure 5, the buffer component 2 is provided with an installation notch 203, and the anti-collision sensor 1 is assembled in the installation notch 203 of the buffer component 2.

[0046] In the embodiment shown in Figure 6, the buffer component 2 is provided with a mounting hole 204, and the anti-collision sensor 1 is assembled in the mounting hole 204 of the buffer component 2. The mounting hole 204 is provided with a thickened part 205 on the side away from the chassis 4, and the thickened part 205 serves to protect the anti-collision sensor 1.

[0047] The collision avoidance system also includes a controller. The controller communicates with the collision avoidance sensors. This communication connection refers to the connection method that can transmit signals. Specifically, the communication connection method can be a wireless connection, such as Wi-Fi, Bluetooth, or cellular network, or a wired connection, such as a connection via a wire or data cable.

[0048] The controller includes at least a safety module. When the controller receives an impact or proximity signal, the safety module generates a control command to stop the electric pallet truck or move it away from the obstacle based on the received impact or proximity signal. Specifically, the safety module is a virtual program module that specifies a safe distance between the electric pallet truck and the obstacle. After the electric pallet truck executes the control command from the safety module, the distance between it and the obstacle is not less than the safe distance specified by the safety module.

[0049] The aforementioned collision avoidance system of the electric pallet truck can automatically detect collisions or approaches between the electric pallet truck and obstacles, and can automatically control the electric pallet truck to stop moving or move away from the obstacle based on the detection signal. In this way, when the electric pallet truck collides with an obstacle or gets close to an obstacle to a certain extent, the electric pallet truck can immediately respond to the control command of the controller and stop moving or move away from the obstacle. This can avoid the risk of the electric pallet truck moving further closer to the obstacle and colliding with the approaching obstacle or further colliding with the obstacle that has already been hit. Therefore, it can prevent collisions or reduce the degree of collision, and improve the operational safety of the electric pallet truck.

[0050] In some embodiments, as shown in Figure 7, the controller includes a user login module and a verification and authorization module. The verification and authorization module pre-stores verification information and is communicatively connected to the user login module to verify the logged-in user information and authorize the logged-in user to operate. For example, the user login method can be an RFID card, biometric identification (such as fingerprint or facial recognition), or password input. The verification information pre-stored in the verification and authorization module can be RFID card information, biometric information (such as fingerprint or facial image), or a password. This allows only the relevant information of trained personnel to be pre-stored in the verification and authorization module, ensuring that only trained personnel are authorized to operate the electric pallet truck, thus avoiding collisions caused by untrained personnel operating the electric pallet truck.

[0051] In some embodiments, as shown in FIG7, the controller includes a fault monitoring module, an alarm module, and a protection module.

[0052] The fault monitoring module can monitor for faults in the collision avoidance sensor, controller, and the communication connection between the controller and the collision avoidance sensor. When the fault monitoring module detects a fault, it issues a fault signal. Specifically, the fault monitoring module can be a virtual program module. For example, the virtual program module can monitor whether a signal from the collision avoidance sensor is received, and whether the received signal significantly exceeds the normal range. When no signal is received from the collision avoidance sensor or the received signal is significantly abnormal, it determines that there is a fault in the collision avoidance sensor, controller, or the communication connection between the controller and the collision avoidance sensor. The fault monitoring module can also be a physical component module. For example, a physical component module can include a camera, which can monitor whether the connection cable between the collision avoidance sensor and the controller is broken.

[0053] The alarm module communicates with the fault monitoring module. When the alarm module receives a fault signal from the fault monitoring module, it issues an alarm to remind operators and surrounding personnel to promptly inspect and maintain the electric pallet truck. Specifically, the alarm can be triggered by lights, sound, voice prompts, visual prompts, or text prompts.

[0054] The protection module communicates with the fault monitoring module to generate control commands to stop the electric pallet truck based on fault signals detected by the fault monitoring module. Specifically, the protection module is a virtual program module. The protection module can also be configured to restrict the starting of the electric pallet truck when controlled by the controller.

[0055] By setting up the aforementioned fault monitoring module, alarm module, and protection module, the controller can automatically issue an alarm and automatically control the electric pallet truck to stop when the anti-collision sensor, the controller, or the communication connection between the anti-collision sensor and the controller fails, thus avoiding the collision risk caused by the electric pallet truck operating with a fault.

[0056] In some embodiments, the controller includes a motion monitoring module that can monitor the movement of the electric pallet truck. Specifically, the movement of the electric pallet truck includes its speed, path, and direction of movement.

[0057] In some embodiments, the collision avoidance system includes a remote server, which comprises a usage analysis module and a report generation module. Specifically, the usage analysis module and the report generation module are virtual program modules.

[0058] The usage analysis module is wirelessly connected to the collision avoidance sensor, fault detection module, and motion monitoring module to analyze the collision or approach of the electric pallet truck to obstacles, the fault conditions of the collision avoidance sensor, the fault conditions of the controller, the connection faults between the collision avoidance sensor and the controller, and the movement of the electric pallet truck. Specifically, the collision or approach of the electric pallet truck to obstacles includes the number of collisions or approaches, the impact or approach area, and the impact or approach speed. Specifically, the fault conditions include the cause of the fault and the type of fault.

[0059] The report generation module communicates with the usage analysis module to generate usage reports and operation and maintenance recommendations for the electric pallet truck based on the analysis results from the usage analysis module. Specifically, the operation and maintenance recommendations can be preset in the controller or input in real time by managers based on the analysis results from the usage analysis module.

[0060] The above settings enable the remote server to comprehensively analyze the usage of electric pallet trucks and generate usage reports for relevant personnel to review, provide operation and maintenance suggestions to facilitate correct operation and maintenance, and use this data as a training reference.

[0061] In some embodiments, the remote server includes a remote alarm module, which is communicatively connected to the usage analysis module to issue alarms when the electric pallet truck frequently collides with or approaches a preset distance from obstacles, when the anti-collision sensor malfunctions, when the controller malfunctions, or when the communication connection between the anti-collision sensor and the controller fails. Specifically, the alarm can be a light, sound, voice prompt, visual prompt, or text prompt.

[0062] In some embodiments, the remote server is configured with a user interface, through which users can view usage reports and other information records related to the electric pallet truck. The remote server can also communicate with terminal mobile devices, allowing users to access relevant information through their mobile devices.

[0063] In some embodiments, the remote server includes a storage module. The controller includes a user login module, and the storage module is wirelessly connected to the user login module and the usage analysis module to associate and store the current usage status of the electric pallet truck with the information of the currently operating user. Specifically, the storage module synchronizes the currently logged-in user information from the user login module, obtains the current usage status of the electric pallet truck from the usage analysis module, and stores the current usage status data of the electric pallet truck under the corresponding user information name. In this way, the usage status of the electric pallet truck by each operator can be tracked, including collision or proximity situations, malfunction situations, movement situations, etc., thereby enabling operators to operate in a standardized manner.

[0064] The collision avoidance method for electric pallet trucks provided in this application involves installing collision avoidance sensors on the electric pallet trucks. The collision avoidance sensors detect when the electric pallet truck collides with or approaches an obstacle. When the collision avoidance sensors detect that the electric pallet truck has collided with or approached an obstacle to a preset distance, the controller automatically controls the electric pallet truck to stop moving or move away from the obstacle.

[0065] Specifically, collision avoidance sensors are installed at locations where the electric pallet truck is prone to colliding with obstacles, such as the outer side of the truck's chassis. If multiple locations on the electric pallet truck are prone to collisions with obstacles, collision avoidance sensors can be installed at multiple such locations. Collision avoidance sensors can be any component capable of detecting impacts or proximity, such as pressure sensors, proximity sensors, microswitches, or radar sensors. The detection by the collision avoidance sensors is real-time.

[0066] The aforementioned collision avoidance method for electric pallet trucks can automatically detect collisions or approaches between the electric pallet truck and obstacles, and can automatically control the electric pallet truck to stop moving or move away from the obstacle based on the detection signal. In this way, when the electric pallet truck collides with an obstacle or approaches an obstacle to a certain extent, the electric pallet truck can immediately respond to the control command of the controller and stop moving or move away from the obstacle. This can avoid the risk of the electric pallet truck moving further towards the obstacle and colliding with the approaching obstacle or further colliding with the obstacle that has already been collided with. Therefore, it can prevent collisions or reduce the degree of collision, and improve the operational safety of electric pallet trucks.

[0067] In some embodiments, the controller authorizes user operation only after the user logs in and passes authentication. This avoids collisions caused by unauthorized personnel (e.g., untrained individuals) operating the electric pallet truck.

[0068] In some embodiments, fault monitoring is performed on the collision avoidance sensor, controller, and the communication connection between the controller and the collision avoidance sensor. When a fault is detected, the controller automatically stops the electric pallet truck and issues an alarm. Additionally, the starting of the electric pallet truck can be restricted until the fault is resolved. This avoids the collision risk caused by the electric pallet truck operating with a fault.

[0069] In some embodiments, the usage of electric pallet trucks is monitored and analyzed. A remote server generates usage reports and operation and maintenance recommendations based on this data. Usage information includes collisions or near-obstacles, collision avoidance sensor malfunctions, controller malfunctions, communication failures between the collision avoidance sensors and the controller, and the movement of the electric pallet truck. This allows the remote server to comprehensively analyze the usage of the electric pallet trucks and generate usage reports for easy access by relevant personnel, providing operation and maintenance recommendations to facilitate correct operation and maintenance, and enabling the data to be used as a training reference.

[0070] In some embodiments, the remote server issues an alarm when the electric pallet truck frequently collides with or approaches a preset distance from an obstacle, when the anti-collision sensor malfunctions, when the controller malfunctions, or when the communication connection between the anti-collision sensor and the controller fails.

[0071] In some embodiments, the current usage status of the electric pallet truck and the information of the current operator are linked and stored. This allows for tracking of the electric pallet truck's usage by each operator, including collisions or proximity incidents, malfunctions, and movement, thereby enabling operators to adhere to standardized operating procedures.

[0072] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An anti-collision system for an electric pallet truck, characterized in that The anti-collision system includes a buffer component, which includes a long strip-shaped flexible substrate and a plurality of flexible protrusions. The flexible protrusions are disposed on one side of the flexible substrate and are arranged sequentially along the length of the flexible substrate. A tooth groove is formed between adjacent flexible protrusions. The flexible substrate surrounds the outside of the chassis of the electric pallet truck, and the flexible protrusions are located between the flexible substrate and the chassis.

2. The anti-collision system of a motorized pallet truck according to claim 1, characterized in that The flexible substrate and the flexible protrusions are integrally formed.

3. The anti-collision system of a motorized pallet truck according to claim 1, characterized in that, The collision avoidance system includes a collision avoidance sensor, which is capable of detecting the collision or approach of the electric pallet truck with an obstacle; The anti-collision sensor is integrally formed with the buffer component; or, the buffer component has a mounting notch, and the anti-collision sensor is embedded in the mounting notch; or, the buffer component has a mounting hole, and the anti-collision sensor is embedded in the mounting hole.

4. The anti-collision system of a motorized pallet truck according to claim 3, characterized in that The collision avoidance system also includes a controller, which is communicatively connected to the collision avoidance sensor to receive impact or proximity signals detected by the collision avoidance sensor. The controller includes a safety module, which can generate control commands to stop the electric pallet truck or move it away from the obstacle based on the impact or proximity signal.

5. The anti-collision system of a motorized pallet truck according to claim 4, characterized in that The controller includes a user login module and a verification and authorization module. The verification and authorization module pre-stores user information and is communicatively connected to the login module to verify the logged-in user information and authorize the logged-in user to perform operations.

6. Anti-collision system for an electric pallet truck according to claim 4 or 5, characterized in that The controller includes a fault monitoring module, an alarm module, and a protection module. The fault monitoring module is capable of monitoring the collision avoidance sensor, the controller, and the communication connection between the controller and the collision avoidance sensor for faults. The alarm module is communicatively connected to the fault monitoring module to issue an alarm based on the fault signal detected by the fault monitoring module. The protection module is communicatively connected to the fault monitoring module to generate a control command to stop the electric pallet truck based on the fault signal detected by the fault monitoring module.

7. The anti-collision system of a motorized pallet truck according to claim 6, characterized in that The controller includes a motion monitoring module that monitors the movement of the electric pallet truck. The collision avoidance system includes a remote server, which includes a usage analysis module. The usage analysis module is wirelessly connected to the collision avoidance sensor, the fault detection module, and the motion monitoring module to analyze the collision or approach of the electric pallet truck to obstacles, the fault status of the collision avoidance sensor, the fault status of the controller, the connection failure status between the collision avoidance sensor and the controller, and the movement of the electric pallet truck. The report generation module is communicatively connected to the usage analysis module to generate a usage report and operation and maintenance suggestions for the electric pallet truck based on the analysis results of the usage analysis module.

8. The anti-collision system of a motorized pallet truck according to claim 7, characterized in that The remote server includes a remote alarm module, which is communicatively connected to the usage analysis module to issue alarms when the electric pallet truck frequently collides with or approaches a preset distance from an obstacle, when the anti-collision sensor malfunctions, when the controller malfunctions, or when the communication connection between the anti-collision sensor and the controller fails.

9. The anti-collision system of a motorized pallet truck according to claim 7, characterized in that The remote server includes a storage module, and the controller includes a user login module. The storage module is wirelessly connected to the user login module and the usage analysis module to associate and store the current usage status of the electric pallet truck and the currently logged-in user information.

10. A method of collision avoidance for an electric pallet truck, characterized in that By installing anti-collision sensors on electric pallet trucks, the sensors detect collisions or approaches between the electric pallet truck and obstacles. When the anti-collision sensors detect that the electric pallet truck has collided with or approached an obstacle to a preset distance, the controller automatically controls the electric pallet truck to stop moving or move away from the obstacle.

11. The anti-collision method of a motorized pallet truck according to claim 10, characterized in that, The controller authorizes user operations only after the user logs in and passes authentication.

12. The anti-collision method of a power pallet truck according to claim 10 or 11, characterized in that, The system monitors for faults in the anti-collision sensor, the controller, and the communication connection between the controller and the anti-collision sensor. When a fault is detected, the controller automatically stops the electric pallet truck and issues an alarm.

13. The anti-collision method of a motorized pallet truck according to claim 12, characterized in that, The system monitors and analyzes the usage of electric pallet trucks. A remote server generates a usage report and operation and maintenance suggestions based on the usage data, which includes collisions or proximity incidents between the electric pallet truck and obstacles, malfunctions of the anti-collision sensors, malfunctions of the controller, communication failures between the anti-collision sensors and the controller, and the movement of the electric pallet truck.

14. The anti-collision method of a motorized pallet truck according to claim 13, characterized in that, The remote server issues an alarm when the electric pallet truck frequently collides with or approaches a preset distance from an obstacle, when the anti-collision sensor malfunctions, when the controller malfunctions, or when the communication connection between the anti-collision sensor and the controller fails.

15. The method of claim 13, wherein, The current usage status of the electric pallet truck and the currently logged-in user information are associated and stored.

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