A rental management system and method for new energy vehicles

Abstract

The present invention relates to the technical field of new energy vehicle rental management system, and discloses a rental management system and method for new energy vehicles, wherein the system comprises a central control terminal, a vehicle-mounted terminal and a detection component, wherein the central control terminal is respectively connected to the vehicle-mounted terminal and the detection component for communication, the vehicle-mounted terminal is used to collect vehicle driving status information and transmit it back to the central control terminal in time, the detection component is used to collect the status of the vehicle before and after rental, and upload it to the central control terminal for recording, and the detection component comprises a vehicle appearance detection unit and a vehicle chassis detection unit, and the vehicle appearance detection unit and the vehicle chassis detection unit are both located on a supporting bottom plate; the comprehensive image acquisition and recording of the appearance of the new energy vehicle and the battery components on the chassis are realized, and the stability and safety of the vehicle when the rental personnel rent the new energy vehicle are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle rental management systems, and specifically discloses a rental management system and method for new energy vehicles. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source, or use new on-board power devices, and integrate advanced technologies in vehicle power control and driving to form vehicles with new technologies, new structures, and advanced technical principles. At present, with the gradual development of the automotive industry, new energy vehicles are increasing day by day, which leads to more and more users in the car rental industry choosing to rent new energy vehicles. However, the existing vehicle rental management system is not suitable for new energy vehicles, especially in the detection of new energy vehicles before and after leasing. Traditional vehicle rental management systems mostly pay more attention to the appearance and engine components of the vehicle, but do not effectively monitor the chassis battery of new energy vehicles, which makes it difficult to conduct comprehensive detection of new energy vehicles;

[0003] At the same time, existing rental vehicles usually rely on only a single network channel to communicate with the central control end, which can usually meet the needs in areas with good network coverage. However, when the vehicle enters an environment with poor network or no network, such as an underground parking lot, tunnel or remote area, this single communication channel is easily restricted, resulting in unstable or interrupted communication. The central control end cannot receive key information sent by the vehicle end in time, such as the vehicle's location update, driving status or emergency assistance signal. This not only affects the real-time monitoring and management of the vehicle, but even causes the new energy vehicle to be offline in serious cases, which in turn causes the new energy vehicle to be unable to operate normally, thereby increasing the risk of traffic safety accidents.

[0004] Therefore, the present application specifically proposes a rental management system and method for new energy vehicles. Summary of the invention

[0005] The purpose of the present invention is to provide a rental management system and method for new energy vehicles to solve one of the above-mentioned technical problems existing in the prior art.

[0006] Specifically, the present invention is achieved through the following technical solutions:

[0007] A rental management system for new energy vehicles, comprising a central control terminal, a vehicle-mounted terminal and a detection component, wherein the central control terminal is respectively connected to the vehicle-mounted terminal and the detection component for communication, the vehicle-mounted terminal is used to collect vehicle driving status information and transmit it back to the central control terminal in a timely manner, the detection component is used to collect the status of the vehicle before and after leasing, and upload it to the central control terminal for recording, and the detection component comprises a vehicle appearance detection unit and a vehicle chassis detection unit, and the vehicle appearance detection unit and the vehicle chassis detection unit are both located on a supporting bottom plate;

[0008] The vehicle-mounted terminal is installed in the vehicle, and includes an unlocking module, a positioning module, a sensor unit and a communication module that are interconnected. The unlocking module is used to control the unlocking start of the vehicle, the positioning module is used to collect the current vehicle position information in real time, the sensor unit is used to collect the vehicle driving state and performance data, and the communication module is connected to the central control terminal for communication, and is used to transmit the current vehicle position information and vehicle driving state performance data collected by the positioning module and the sensor unit to the central control terminal;

[0009] The communication module includes a network channel unit, a radio channel unit and a channel switching unit. Initially, the communication module is connected to the central control terminal through the network channel unit. The channel switching unit is used to switch the network channel unit and the radio channel unit according to the signal strength and communication quality between the communication module and the central control terminal to ensure the stability of the communication connection between the communication module and the central control terminal.

[0010] The channel switching unit includes a signal monitor, a communication quality evaluator and a switching decision execution unit. The signal monitor is used to monitor the signal parameters of the current network channel unit. The communication quality evaluator is used to receive the signal parameters of the current network channel unit, analyze and evaluate them, and generate an evaluation result and transmit it to the switching decision execution unit. The switching decision execution unit receives the evaluation result from the communication quality evaluator and determines whether to switch. If switching is to be performed, a switching instruction is generated and sent to the communication module to perform channel switching.

[0011] It should be noted that the communication module in the above technical solution significantly improves the stability and reliability of communication by integrating the network channel unit, the radio channel unit and the channel switching unit, and effectively solves the problem of insufficient signal coverage that may be encountered by a single communication channel in the prior art. The difference from the prior art lies in that: by introducing the channel switching unit, an intelligent communication channel switching mechanism is provided for the communication module. When the vehicle-mounted terminal detects that the signal strength and communication quality of the current network channel have dropped to the point where they cannot meet the communication requirements, the channel switching unit will automatically switch the communication channel from the network channel to the radio channel to ensure the continuity and stability of communication. This not only improves the reliability of communication, but also enhances the fault tolerance of the system, ensuring that even when the network environment changes, the central control terminal can always maintain a stable communication connection with the vehicle-mounted terminal, so that it can receive the new energy vehicle monitoring data transmitted from the vehicle-mounted terminal in real time, thereby effectively monitoring the status of the new energy vehicle in real time and responding to possible emergencies in a timely manner, thereby avoiding the new energy vehicle from going offline and affecting its normal use, and effectively reducing the occurrence of traffic safety accidents involving new energy vehicles.

[0012] Preferably, the vehicle appearance detection unit comprises a door frame, and a plurality of first cameras equidistantly arranged on the inner side of the door frame, the two ends of the bottom of the door frame are slidably connected to the support bottom plate, the vehicle chassis detection unit comprises a detection rod and a plurality of second cameras installed on the upper part of the detection rod, the detection rod is slidably connected to the support bottom plate through a displacement mechanism; the detection rod is connected to the door frame through a traction mechanism;

[0013] Initially, the detection rod and the portal frame are respectively located at the two ends of the length direction of the supporting base plate. When the status of the vehicle is collected by the detection component before and after the rental of the vehicle, the vehicle enters the supporting base plate, and the vehicle appearance detection unit and the vehicle chassis detection unit start working and collect images of the vehicle appearance and its chassis. When the vehicle chassis detection unit collects images, the displacement mechanism drives the detection rod to move along the length direction of the supporting base plate, so as to perform comprehensive image detection and collection of the battery components on the vehicle chassis through the second camera. When the detection rod moves, the portal frame is pulled to slide through the traction mechanism, so as to perform image detection and collection of the vehicle's appearance surface through the first camera.

[0014] It should be noted that this technical solution aims at the problem of incomplete detection of new energy vehicles in the existing car rental industry, and specially proposes a rental management system and method for new energy vehicles. The difference between this system and the existing technology is that by integrating the central control terminal, the vehicle-mounted terminal and the detection component, it realizes the comprehensive collection and recording of the vehicle status before and after the rental, and significantly improves the safety and reliability of vehicle rental. Specifically, its core lies in the ingenious design of the detection component. The detection component not only includes a vehicle appearance detection unit, but also further includes a vehicle chassis detection unit, and both are located on the supporting bottom plate, ensuring the efficiency and convenience of the new energy vehicle detection process before and after the rental of the new energy vehicle. Furthermore, through the mutual coordination of the vehicle appearance detection unit and the vehicle chassis detection unit, it realizes comprehensive and detailed image acquisition and detection of the appearance of the rental vehicle and the battery components on the chassis.

[0015] As a preferred technical solution, the traction mechanism includes traction rope groups correspondingly arranged at both ends of the detection rod, and any of the traction rope groups includes two guide wheel groups and two steel wire ropes, the two guide wheel groups are respectively located at both ends of the length direction of the support plate, one end of the two steel wire ropes is respectively connected to the front and rear of the detection rod, and the other ends of the two steel wire ropes pass through the two guide wheel groups and are connected to the two sides of the bottom end corresponding to the portal frame;

[0016] In the above scheme, the synchronous and coordinated action of the vehicle chassis detection unit and the vehicle appearance detection unit is realized through the structural design of the traction mechanism, ensuring that the image data of the chassis battery components and appearance of the new energy vehicle can be efficiently and accurately collected when conducting new energy vehicle inspection.

[0017] As a specific technical solution, the signal monitor monitors the signal parameters of the current network channel unit including signal strength, signal interference level, bit error rate and packet loss rate, and the communication quality evaluator analyzes and evaluates the signal parameters of the current network channel unit and generates an evaluation result. The specific process includes:

[0018] Step 1: preprocessing the signal parameters of the monitored network channel unit to remove abnormal values ​​and noise in the signal parameters, thereby improving data quality;

[0019] Step 2, extracting feature vectors from the preprocessed data based on a recurrent neural network model, wherein the recurrent neural network model includes an input layer, a hidden layer, and an output layer, the input layer includes four nodes, which are respectively used to take the signal strength, signal interference level, bit error rate, and packet loss rate of signal parameters as input features, the hidden layer performs time series analysis on these parameters through multiple cyclic units, and captures the characteristics of signal changes over time, and then uses the ReLU activation function to introduce a nonlinear relationship to iteratively calculate it and generate a time series feature vector output in the output layer;

[0020] Step 3, assign different weights to the importance of each eigenvector in the time series eigenvector extracted by the recurrent neural network model in step 2, and then sum the weighted eigenvalues ​​of each eigenvector according to the weighted average algorithm to calculate the overall communication quality score result.

[0021] In the above technical solution, through the combination of preprocessing, application of recurrent neural network model and weighted scoring, accurate evaluation and intelligent management of communication channel quality are achieved, which not only improves the stability and reliability of communication, but also provides a scientific basis for channel switching, ensuring the efficiency and real-time performance of communication between the vehicle-mounted terminal and the central control terminal. Specifically, the communication quality evaluator uses a recurrent neural network model to conduct an in-depth analysis of the preprocessed data. The model receives signal parameters through the input layer and performs time series analysis on these parameters through multiple recurrent units in the hidden layer to capture the characteristics of the signal changing over time. This process not only takes into account the instantaneous state of the signal, but also analyzes the dynamic change trend of the signal, thereby providing a more comprehensive and in-depth communication quality evaluation. The ReLU activation function is used to introduce nonlinear relationships, which further enhances the model's ability to capture complex signal features. The overall communication quality score result is calculated by weighting the time series feature vector extracted by the recurrent neural network model. This step reflects the distinction between the importance of different signal parameters, and by assigning different weights, the rationality and scientificity of the scoring results are ensured. The application of the weighted average algorithm enables the scoring results to comprehensively reflect multiple aspects of the signal parameters and provide a comprehensive quality evaluation.

[0022] Specifically, in step 3, the calculation process of the weighted average algorithm satisfies: ;

[0023] in, Represents the calculated overall communication quality score result, Represents the first eigenvectors, where the total number of eigenvectors is indivual, Indicates The value of the feature vector is generated by the recurrent neural network model after performing time series analysis on the signal parameters (signal strength, signal interference level, bit error rate and packet loss rate) in step 2. Indicates The weight of a feature vector is used to indicate the relative importance of the feature vector to the overall communication quality, which is obtained in advance through model learning based on the importance of the feature vector.

[0024] Furthermore, the switching decision execution unit includes a comparison mechanism and a parameter buffer, wherein the comparison mechanism is preset with a communication quality standard threshold, and the communication quality standard threshold includes a communication quality minimum standard value and the highest standard value of communication quality , when the calculated overall communication quality score is < or > When the switching decision execution unit considers that the communication quality of the current channel does not meet the communication requirements, it triggers the channel switching mechanism, generates a switching instruction and sends it to the communication module for channel switching. The parameter buffer is used to synchronize and cache the current channel parameters and communication status information after the switching instruction is generated.

[0025] In the above scheme, the design of the switching decision execution unit introduces a comparison mechanism and a parameter buffer. These two features work together to significantly improve the adaptability and stability of the communication module in the face of complex communication environments. Specifically: through the preset communication quality standard thresholds in the comparison mechanism, including the minimum standard value and the maximum standard value of the communication quality, the switching decision execution unit can accurately evaluate whether the communication quality of the current channel meets the requirements, ensuring that the communication quality is always maintained within the acceptable range of the user and the system, avoiding the waste of resources caused by too low or too high communication quality. When the communication quality score result is lower than the minimum standard value or higher than the maximum standard value, the switching decision execution unit will trigger the channel switching mechanism, which realizes dynamic optimization of the communication path, ensuring that the best communication performance can be maintained in various environments, thereby improving the reliability and efficiency of data transmission, and the parameter buffer is used to synchronously cache the current channel parameters and communication status information after the switching instruction is generated. This buffer mechanism ensures that the continuity and consistency of the communication status can be guaranteed even during the channel switching process, reducing the risk of communication interruption or data loss caused by switching. The stability and reliability of the car rental management system are improved, and the continuity and stability of the communication connection between the rental vehicle and the central control terminal are ensured.

[0026] As a preferred technical solution, a rental management system for new energy vehicles also includes a mobile terminal, which is used by the rental personnel to issue rental instructions to the central control terminal. The central control terminal is used to send corresponding first key instructions and second key instructions to the unlocking module of the vehicle-mounted terminal and the mobile terminal respectively after receiving the rental instructions sent by the mobile terminal. A verification input unit is also provided on one side of the supporting base plate, and the verification input unit is communicatively connected with the unlocking module. The verification input unit is used by the rental personnel to input the second key instruction and verify and compare the second key instruction with the first key instruction of the unlocking module. If the verification and comparison are successful, the unlocking module is started to unlock the vehicle, and the vehicle appearance detection unit and the vehicle chassis detection unit are started to perform pre-rental detection on the new energy vehicle.

[0027] A rental management method for new energy vehicles, the method is based on a rental management system for new energy vehicles, and comprises the following steps:

[0028] S1. The rental personnel sends a rental instruction to the central control terminal through the mobile terminal;

[0029] S2. After receiving the rental instruction sent by the mobile terminal, the central control terminal sends a first key instruction and a second key instruction to the mobile terminal and the vehicle terminal respectively;

[0030] S3. After receiving the second key instruction through the mobile terminal, the rental personnel go to the rental location and input the second key instruction through the verification input unit on the detection component. After the second key instruction input by the verification input unit is successfully matched with the first key instruction of the unlocking module, the vehicle is unlocked, and the vehicle appearance detection unit and the vehicle chassis detection unit of the detection component are started to perform pre-rental detection on the new energy vehicle;

[0031] S4. After the vehicle chassis detection unit is working, the displacement mechanism drives the detection rod to move back and forth along the length direction of the supporting base plate, so that the second camera on the detection rod performs visual image acquisition and detection on the vehicle chassis. When the detection rod moves back and forth, the traction mechanism pulls the portal frame to move on the supporting base plate, so that the first camera performs image detection and acquisition on the exterior surface of the vehicle, and uploads it to the central control end for recording;

[0032] S5. After the inspection component has finished inspecting the vehicle's appearance and chassis, the rental staff can drive the vehicle for use. During the driving process, the on-board terminal is used to collect the vehicle's driving status information and transmit it back to the central control terminal for recording in a timely manner. When the rental staff has finished using the rental vehicle, they drive the vehicle to the support platform and start the inspection component to collect images of the new energy vehicle's appearance and chassis for post-rental inspection. If no damage is found in the vehicle after the rental inspection, the vehicle rental work is completed.

[0033] Through the above method, the leasing process is automated and intelligent, which significantly improves the efficiency and safety of car leasing. Specifically, firstly, through the interaction between the mobile terminal and the central control terminal, the leasing personnel can conveniently issue leasing instructions and receive key instructions, which simplifies the leasing process and reduces human errors. Secondly, the verification mechanism of the key instruction ensures that only authorized personnel can unlock and use the vehicle, which enhances the safety of the vehicle. Moreover, the introduction of the detection component enables the vehicle to be fully inspected for appearance and chassis before and after leasing, which not only helps to timely discover and record the damage of the vehicle and avoid leasing disputes, but also ensures the maintenance and maintenance of the vehicle. During the use of the vehicle, the vehicle driving status information is collected and transmitted back in real time through the vehicle-mounted terminal, so that the central control terminal can monitor the vehicle status in real time, which improves the transparency and controllability of vehicle use. Finally, the vehicle inspection after the end of the lease provides the leasing company with feedback on the vehicle usage status, which helps to optimize the leasing service and vehicle management.

[0034] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0035] 1. The present invention solves the problem of incomplete detection before and after the rental of new energy vehicles through the coordinated work of the vehicle appearance detection unit and the vehicle chassis detection unit, realizes the comprehensive image acquisition and recording of the appearance and battery components on the chassis of the new energy vehicle, ensures the stability and safety of the vehicle when the rental personnel rent the new energy vehicle, avoids the chassis battery components of the new energy vehicle being damaged during the rental and causing vehicle driving failure, and greatly reduces the occurrence of rental disputes caused by damage to the rental vehicle;

[0036] 2. The present invention, through the setting of the traction mechanism, enables the vehicle chassis detection unit and the vehicle appearance detection unit to perform detection simultaneously, which reduces the time required for detection, improves the detection efficiency, ensures the efficiency and convenience of the new energy vehicle detection process, and solves the problem that the traditional detection process is cumbersome and time-consuming;

[0037] 3. The present invention skillfully integrates a network channel unit, a radio channel unit and a channel switching unit in the communication module of the vehicle-mounted end. Through the intelligent switching mechanism, the instability problem of a single communication channel in a poor signal environment is solved, and the stability and reliability of the communication connection are achieved. In addition, through the coordinated work of the signal monitor, the communication quality evaluator and the switching decision execution unit in the channel switching unit, the real-time monitoring and evaluation of the communication channel quality are achieved, the information transmission problem caused by the fluctuation of the communication quality is solved, the continuity and real-time performance of the communication are improved, and the stability of the communication and the accurate collection of the vehicle status information are ensured, whether in urban areas with good network coverage or in remote areas with weak signals (or in underground parking lots);

[0038] 4. The present invention provides the leasing company with feedback on the vehicle usage status through vehicle inspection after the end of the lease, which helps to timely discover vehicle problems and perform maintenance, improves the efficiency and quality of vehicle maintenance, and the central control end can monitor the vehicle status in real time, improves the transparency and controllability of the leasing and use of new energy vehicles, enables leasing companies to better manage new energy vehicles, and also allows leasing personnel to be more confident in the use of new energy vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0040] Figure 1 This is an overall block diagram of the system of Embodiment 1 of the present invention;

[0041] Figure 2 It is a schematic diagram of the structure of the detection component of the present invention, which is intended to detect the condition of the vehicle before and after leasing;

[0042] Figure 3 It is a schematic diagram of the side view structure of the support base plate of the present invention, which is intended to show the structure of the traction mechanism;

[0043] Figure 4 For the present invention Figure 3 The partial enlarged structural diagram of A is intended to show the specific structure of the traction mechanism;

[0044] Figure 5 is a schematic diagram of the structure of the detection component in Example 2 of the present invention;

[0045] Figure 6 For the present invention Figure 5 The schematic diagram of the partial enlarged structure at B is intended to show the specific structure of the swing component;

[0046] Figure 7 This is a schematic diagram of the top view of the supporting base plate of the present invention, which is intended to further illustrate the specific structure of the swing assembly;

[0047] Figure 8 Schematic diagram of the method steps of Example 4 of the present invention.

[0048] The reference numerals represent: 10, vehicle appearance detection unit; 100, portal frame; 101, first camera; 20, vehicle chassis detection unit; 200, detection rod; 201, second camera; 202, displacement mechanism; 3, support base plate; 4, traction mechanism; 400, wire rope; 410, guide wheel group; 500, sliding sleeve; 501, connecting rod; 5010, strip groove; 5011, connecting rod; 502, wedge block; 503, guide block. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and drawings. The schematic implementation modes and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention. It should be noted that the present invention is already in the actual development and use stage.

[0050] It should be noted that in the modern car rental industry, the safety and integrity of the vehicle are the focus of common concern for both parties to the lease. However, the existing vehicle rental management system is not suitable for new energy vehicles, especially in the inspection of new energy vehicles before and after the lease. Most traditional vehicle rental management systems pay more attention to the appearance and engine components of the vehicle, and do not effectively monitor the battery and other components on the chassis of new energy vehicles, which makes it difficult to conduct a comprehensive inspection of new energy vehicles. If the chassis battery of a new energy vehicle is damaged or worn, it may cause the new energy vehicle to malfunction during driving, and even cause serious traffic accidents. The lack of chassis inspection also makes it impossible for rental personnel to fully understand the actual condition of the vehicle when taking over the new energy vehicle, increasing driving risks.

[0051] In view of this, the present application proposes a new car rental management system and method, wherein the system realizes real-time monitoring of the vehicle status and comprehensive inspection before and after the rental through the collaborative work of the central control terminal, the vehicle-mounted terminal and the detection component, and performs comprehensive and effective inspection of the vehicle appearance and the battery components on the chassis, greatly improving the inspection efficiency and accuracy of leased new energy vehicles, specifically, as described in the following embodiments.

[0052] Example 1

[0053] See also Figures 1 to 4 As shown, this embodiment discloses a rental management system for new energy vehicles, including a central control terminal, a vehicle-mounted terminal and a detection component, the central control terminal is respectively connected to the vehicle-mounted terminal and the detection component for communication, the vehicle-mounted terminal is used to collect vehicle driving status information and timely transmit it back to the central control terminal, the detection component is used to collect the status of the vehicle before and after leasing, and upload it to the central control terminal for recording, and the detection component includes a vehicle appearance detection unit 10 and a vehicle chassis detection unit 20, and the vehicle appearance detection unit 10 and the vehicle chassis detection unit 20 are both located on the supporting bottom plate 3;

[0054] The vehicle appearance detection unit 10 includes a door frame 100, and a plurality of first cameras 101 equidistantly arranged on the inner side of the door frame 100. The two ends of the bottom of the door frame 100 are slidably connected to the support bottom plate 3. The vehicle chassis detection unit 20 includes a detection rod 200 and a plurality of second cameras 201 installed on the upper part of the detection rod 200. The detection rod 200 is slidably connected to the support bottom plate 3 through a displacement mechanism 202. The detection rod 200 is connected to the door frame 100 through a traction mechanism 4.

[0055] Initially, the detection rod 200 and the portal frame 100 are respectively located at the two ends of the length direction of the supporting base plate 3. When the status of the vehicle is collected by the detection component before and after the rental, the vehicle enters the supporting base plate 3, and the vehicle appearance detection unit 10 and the vehicle chassis detection unit 20 start working and collect images of the vehicle appearance and its chassis. When the vehicle chassis detection unit 20 collects, the displacement mechanism drives the detection rod 200 to move along the length direction of the supporting base plate 3, so as to perform comprehensive image detection and collection of the battery components on the vehicle chassis through the second camera 201. When the detection rod 200 moves, the portal frame 100 is pulled to slide through the traction mechanism 4, so as to perform image detection and collection of the vehicle's appearance surface through the first camera 101.

[0056] Based on the above embodiments, it can be expected that the system realizes the comprehensive collection and recording of the state before and after the rental of new energy vehicles by integrating the central control terminal, the vehicle-mounted terminal and the detection component, significantly improving the safety and reliability of vehicle rental. Specifically, the detection component not only includes a vehicle appearance detection unit 10, but also further includes a vehicle chassis detection unit 20, and both are located on the support base plate 3, ensuring the efficiency and convenience of the new energy vehicle detection process before and after the vehicle rental, thereby avoiding the damage of the chassis battery components of the new energy vehicle and causing the vehicle to fail, thereby reducing the occurrence of accidents. At the same time, when the rental personnel rent a new energy vehicle, they can fully understand the vehicle status, provide conclusive evidence for both parties to the rental, and reduce disputes caused by the unclear status of the new energy vehicle during the rental. In addition, it is necessary to supplement the displacement mechanism 202 in this embodiment that the main function of the displacement mechanism 202 is to realize the sliding connection between the detection rod 200 and the support base plate 3. Therefore, for the displacement mechanism, this embodiment does not limit its specific structure here. When it is actually applied, the slide rail displacement mechanism or the linear guide module can be selected according to the actual situation.

[0057] When carrying out specific implementation, Figure 3 and Figure 4The traction mechanism 4 includes traction rope groups correspondingly arranged at both ends of the detection rod 200, and any traction rope group includes two guide wheel groups 410 and two steel wire ropes 400. The two guide wheel groups 410 are respectively located at both ends of the length direction of the support plate, and one end of the two steel wire ropes 400 is respectively connected to the front and rear of the detection rod 200, and the other ends of the two steel wire ropes 400 pass through the two guide wheel groups 410 and are connected to the two sides of the bottom end corresponding to the door frame 100;

[0058] Through the structural design of the traction mechanism 4, the synchronous and coordinated actions of the vehicle chassis detection unit 20 and the vehicle appearance detection unit 10 are realized, ensuring that when conducting new energy vehicle detection, the image data of the battery components on the chassis of the new energy vehicle and the vehicle appearance can be efficiently and accurately collected. Specifically, the two guide wheel groups 410 are respectively arranged at the two ends of the supporting base plate 3 in the length direction, and they play the role of fixing and guiding the direction of the wire rope 400. Since one end of the two steel wire ropes 400 is connected to the front and rear of the detection rod 200, and the other end passes through the guide wheel group 410 and is connected to the two sides of the bottom end corresponding to the portal frame 100, when the detection rod 200 moves along the length direction on the supporting base plate 3, the wire rope 400 can drive the portal frame 100 to slide synchronously through the guiding effect of the guide wheel group 410, and can simultaneously capture images of the vehicle's exterior and battery components on the chassis, thereby reducing the time required for detection and improving the detection efficiency. In addition, since the two detection units can work synchronously, the collected image data is consistent in time, which is convenient for subsequent image comparison and analysis, thereby improving the accuracy of the detection results.

[0059] Example 2

[0060] Based on the above embodiment 1, it is further necessary to add that in the existing car rental system, the communication connection between the vehicle-mounted terminal and the central control terminal is crucial because it is the basis for realizing vehicle monitoring, remote control and data exchange. This communication connection allows the rental company to track the location, status and performance of the vehicle in real time, thereby ensuring the safe and efficient operation of the rental new energy vehicles. In addition, through the communication between the vehicle-mounted terminal and the central control terminal, the rental company can provide real-time information to the rental personnel, such as navigation guidance, vehicle maintenance reminders and emergency services, thereby improving user experience and satisfaction. Therefore, this embodiment further describes the vehicle-mounted terminal, which is installed in the vehicle and includes an unlocking module, a positioning module, a sensor unit and a communication module that are interconnected. The unlocking module is used to control the unlocking start of the vehicle, the positioning module is used to collect the current vehicle location information in real time, the sensor unit is used to collect the vehicle driving status and performance data, and the communication module is connected to the central control terminal for transmitting the current vehicle location information and vehicle driving status performance data collected by the positioning module and the sensor unit to the central control terminal.

[0061] It should be noted that existing rental vehicles usually rely on a single network channel to communicate with the central control end, which can usually meet the needs in areas with good network coverage. However, when the vehicle enters an environment with poor network or no network, such as an underground parking lot, tunnel or remote area, this single communication channel is easily restricted, resulting in unstable or interrupted communication. The central control end cannot receive key information sent by the vehicle end in time, such as the vehicle's location update, driving status or emergency help signal. This not only affects the real-time monitoring and management of new energy vehicles, but even causes the new energy vehicles to be offline in serious cases, which in turn causes the new energy vehicles to be unable to operate normally, thereby increasing the risk of traffic safety accidents.

[0062] Therefore, for the communication module, specifically, it includes a network channel unit, a radio channel unit and a channel switching unit. Initially, the communication module is connected to the central control end through the network channel unit. The channel switching unit is used to switch the network channel unit and the radio channel unit according to the signal strength and communication quality between the communication module and the central control end to ensure the stability of the communication connection between the communication module and the central control end.

[0063] The communication module in the above technical solution significantly improves the stability and reliability of communication by integrating the network channel unit, the radio channel unit and the channel switching unit, and effectively solves the problem of insufficient signal coverage that may be encountered by a single communication channel in the prior art. The difference from the prior art is that: by introducing the channel switching unit, an intelligent communication channel switching mechanism is provided for the communication module. When the vehicle-mounted terminal detects that the signal strength and communication quality of the current network channel have dropped to the point where they cannot meet the communication requirements, the channel switching unit will automatically switch the communication channel from the network channel to the radio channel to ensure the continuity and stability of communication. It not only improves the reliability of communication, but also enhances the fault tolerance of the system, ensuring that even when the network environment changes, the central control terminal can always communicate stably with the vehicle-mounted terminal, ensuring that it can receive the vehicle data transmitted by the vehicle-mounted terminal in real time, and then monitor the status of new energy vehicles in real time, and respond to possible emergencies in a timely manner.

[0064] As a further specific technical solution, the channel switching unit includes a signal monitor, a communication quality evaluator and a switching decision execution unit. The signal monitor is used to monitor the signal parameters of the current network channel unit. The communication quality evaluator is used to receive the signal parameters of the current network channel unit, analyze and evaluate them, and generate an evaluation result and transmit it to the switching decision execution unit. The switching decision execution unit receives the evaluation result from the communication quality evaluator and determines whether to switch. If switching is to be performed, a switching instruction is generated and sent to the communication module to perform channel switching.

[0065] In the specific implementation, the communication channel between the vehicle-mounted terminal and the central control terminal is efficiently managed and optimized through the signal monitor and communication quality evaluator. The signal monitor first monitors the key parameters of the network channel unit such as signal strength, signal interference level, bit error rate and packet loss rate in real time to provide basic data for the evaluation of communication quality. In the communication quality evaluator, these signal parameters are preprocessed, and outliers and noise are removed based on mean filtering and Fourier transform to ensure the accuracy and reliability of the data. This step is crucial because accurate data is the basis for subsequent analysis and decision-making. Next, the communication quality evaluator uses a recurrent neural network model to conduct an in-depth analysis of the preprocessed data. The model receives signal parameters through the input layer and performs time series analysis on these parameters through multiple recurrent units in the hidden layer to capture the characteristics of the signal changing over time. This process not only takes into account the instantaneous state of the signal, but also analyzes the dynamic change trend of the signal, thereby providing a more comprehensive and in-depth communication quality evaluation. The ReLU activation function is used to introduce nonlinear relationships, which further enhances the model's ability to capture complex signal characteristics. Finally, the overall communication quality score is calculated by weighting the time series feature vectors extracted by the recurrent neural network model. This step reflects the distinction in the importance of different signal parameters. By assigning different weights, the rationality and scientificity of the score are ensured. The application of the two-weighted average algorithm enables the score to comprehensively reflect multiple aspects of the signal parameters and provide a comprehensive quality assessment.

[0066] Based on the above embodiment, specifically, the signal monitor monitors the signal parameters of the current network channel unit including signal strength, signal interference level, bit error rate and packet loss rate, and the communication quality evaluator analyzes and evaluates the signal parameters of the current network channel unit and generates an evaluation result. The specific process includes:

[0067] Step 1: Preprocess the signal parameters of the monitored network channel unit to remove abnormal values ​​and noise in the signal parameters, thereby improving the data quality. That is, first, clean and denoise the signal strength, signal interference level, bit error rate and packet loss rate. Specifically, apply mean filtering to identify and remove abnormal data points in the original signal parameters (including extreme values ​​and missing values ​​of the signal parameters), and use Fourier transform to eliminate abnormal noise in the signal parameters to ensure that the data input to the subsequent model is accurate.

[0068] Step 2, extracting feature vectors from the preprocessed data based on a recurrent neural network model, wherein the recurrent neural network model includes an input layer, a hidden layer, and an output layer. The input layer includes four nodes, which are used to take the signal strength, signal interference level, bit error rate, and packet loss rate of signal parameters as input features, respectively. The hidden layer performs time series analysis on these parameters through multiple recurrent units, and captures the characteristics of signal changes over time, and then uses the ReLU activation function to introduce nonlinear relationships to iteratively calculate them and generate time series feature vector outputs in the output layer;

[0069] Step 3, assign different weights to the importance of each eigenvector in the time series eigenvector extracted by the recurrent neural network model in step 2, and then sum the weighted eigenvalues ​​of each eigenvector according to the weighted average algorithm to calculate the overall communication quality score result.

[0070] In the above embodiment, through the combination of preprocessing, application of recurrent neural network model and weighted scoring, accurate evaluation and intelligent management of communication channel quality are achieved, which not only improves the stability and reliability of communication, but also provides a scientific basis for channel switching, ensuring the efficiency and real-time performance of communication between the vehicle-mounted terminal and the central control terminal. Specifically, the communication quality evaluator uses a recurrent neural network model to conduct an in-depth analysis of the preprocessed data. The model receives signal parameters through the input layer, and performs time series analysis on these parameters through multiple recurrent units in the hidden layer to capture the characteristics of the signal changing over time. This process not only takes into account the instantaneous state of the signal, but also analyzes the dynamic change trend of the signal, thereby providing a more comprehensive and in-depth communication quality evaluation. The nonlinear relationship is introduced by using the ReLU activation function, which further enhances the model's ability to capture complex signal features. By weighting the time series feature vector extracted by the recurrent neural network model, the overall communication quality score result is calculated. This step reflects the distinction between the importance of different signal parameters, and by assigning different weights, the rationality and scientificity of the scoring results are ensured. The application of the weighted average algorithm enables the scoring results to comprehensively reflect multiple aspects of the signal parameters, providing a comprehensive quality evaluation.

[0071] Based on the above embodiment, it is further necessary to explain that in step 3, the calculation process of the weighted average algorithm satisfies: ;

[0072] in, Represents the calculated overall communication quality score result, Represents the first eigenvectors, where the total number of eigenvectors is indivual, Indicates The value of the feature vector is generated by the recurrent neural network model in step 2 after performing time series analysis on the signal parameters (signal parameters include: signal strength, signal interference level, bit error rate and packet loss rate, etc.). Indicates The weight of a feature vector is used to indicate the relative importance of the feature vector to the overall communication quality, which is obtained in advance through model learning based on the importance of the feature vector.

[0073] Furthermore, the switching decision execution unit includes a comparison mechanism and a parameter buffer, wherein the comparison mechanism is preset with a communication quality standard threshold, and the communication quality standard threshold includes a communication quality minimum standard value. and the highest standard value of communication quality , when the calculated overall communication quality score is < or > When the switching decision execution unit considers that the communication quality of the current channel does not meet the communication requirements, the channel switching mechanism is triggered, and a switching instruction is generated and sent to the communication module for channel switching. The parameter buffer is used to synchronize and cache the current channel parameters and communication status information after the switching instruction is generated.

[0074] It should be understood that in the above scheme, the design of the switching decision execution unit introduces a comparison mechanism and a parameter buffer. These two features work together to significantly improve the adaptability and stability of the communication module when facing a complex communication environment. Specifically: by comparing the preset communication quality standard thresholds in the mechanism, which include the minimum standard value and the maximum standard value of the communication quality (that is, the data range between the minimum standard value and the maximum standard value of the communication quality is considered to be qualified), the switching decision execution unit can accurately evaluate whether the communication quality of the current channel meets the requirements (that is, if the communication quality result of the current channel is not within this data range, it will be considered to be unqualified), thereby ensuring that the communication quality is always maintained within the acceptable range for users and the system, avoiding the waste of resources caused by too low or too high communication quality, that is, when the communication quality score result is lower than the minimum standard value or higher than the maximum standard value, the switching decision execution unit will consider that the communication quality of the current channel does not meet the communication requirements, and at the same time trigger the channel switching mechanism, which realizes dynamic optimization of the communication path, ensuring that the best communication performance can be maintained in various environments, thereby improving the reliability and efficiency of data transmission, and the parameter buffer is used to synchronously cache the current channel parameters and communication status information after the switching instruction is generated. This buffering mechanism ensures that the continuity and consistency of the communication status can be guaranteed even during the channel switching process, reducing the risk of communication interruption or data loss caused by switching. Through precise communication quality control and intelligent channel switching mechanism, the system can maintain stable operation under various network conditions, improving the stability and reliability of the car rental management system, and ensuring the continuity and stability of the communication connection between the rental vehicle and the central control end.

[0075] Specifically, the difference between the existing technology and the existing technology is that the precise control and intelligent switching of communication quality are achieved through the comprehensive use of preset threshold comparison and parameter buffer mechanism. This design not only improves the stability and reliability of communication, but also optimizes the utilization of resources and reduces the risk of communication interruption. In addition, the solution can adapt to different communication environments and conditions, has good flexibility and adaptability, and provides strong technical support for the communication optimization of the car rental management system.

[0076] As a preferred implementable embodiment, it needs to be supplemented that a rental management system for new energy vehicles also includes a mobile terminal, which is used by the rental personnel to issue rental instructions to the central control terminal. The central control terminal is used to send corresponding first key instructions and second key instructions to the unlocking module of the vehicle-mounted terminal and the mobile terminal respectively after receiving the rental instructions sent by the mobile terminal. A verification input unit is also provided on one side of the supporting base plate. The verification input unit is communicatively connected with the unlocking module. The verification input unit is used for the rental personnel to input the second key instruction and verify and compare the second key instruction with the first key instruction of the unlocking module. If the verification and comparison are successful, the unlocking module is started to unlock the vehicle, and the vehicle appearance detection unit and the vehicle chassis detection unit are started to perform pre-rental inspection on the new energy vehicle.

[0077] It should be noted that, for the mobile terminal, it can be realized by accessing a remote server through a network, or by a computer or portable terminal that can be connected to other devices and servers; further explained here, the computer includes a laptop computer, a desktop computer, and a portable computer installed with a web browser, and the portable terminal can include a wireless communication device with guaranteed portability and mobility, such as PCS (Personal Communication System), PDC (Personal Digital Cellular Phone), PHS (Personal Handheld Phone System), PDA (Personal Digital Assistant), GSM (Global System for Mobile Communications), smart phones, mobile WiMAX (Worldwide Interoperability for Microwave Access), and all kinds of handheld wireless communication devices. For this embodiment, the mobile terminal is preferably a handheld smart phone of the rental personnel.

[0078] Example 3

[0079] It should be noted that, since the second camera 201 is fixedly mounted on the detection rod 200 and the vehicle chassis is often complex in structure, it is difficult to fully and carefully record the vehicle chassis when collecting and recording images of the vehicle chassis, resulting in poor detection results. Therefore, this embodiment is based on Embodiment 1 and proposes a further feasible implementation method. For details, please refer to Figures 5 to 7 That is, multiple second cameras 201 are hinged on the top of the detection rod 200, and a swing component is also provided on the detection rod 200, so that the swing component drives the multiple second cameras 201 to swing left and right while performing linear reciprocating movement through the detection rod 200 and performing image acquisition and detection on the vehicle chassis, so that the second camera 201 can swing left and right when performing image acquisition, thereby increasing the image acquisition range of the second camera 201, ensuring that it can perform comprehensive and detailed image acquisition and recording of the battery components on the chassis of the new energy vehicle.

[0080] Specifically, in order to make it easier to understand how the second camera 201 of this embodiment swings left and right during the image acquisition and recording process of the vehicle chassis moving back and forth in a straight line, this embodiment specifically describes the specific structure of the swing component. Figure 6 and Figure 7 As shown, it includes a sliding sleeve 500 and a connecting rod 501, the sliding sleeve 500 is respectively connected to the two ends of the detection rod 200 in the length direction, the connecting rod 501 is arranged in parallel with the upper part of the detection rod 200, and its two ends respectively pass through the sliding sleeve 500 and are connected with a wedge block 502, a bar groove 5010 is opened at the rod body of the connecting rod 501 and at the position corresponding to the plurality of second cameras 201, and a connecting rod 5011 connected to the second camera 201 is arranged in the plurality of bar grooves 5010, and guide blocks 503 adapted to the wedge block 502 are also arranged at the top of the supporting base plate 3 and at the positions at the two ends of the detection rod 200 in the length direction, and the two groups of guide blocks 503 are staggered and distributed along the moving direction of the detection rod 200 (as shown in FIG. 2 ). Figure 7 As shown, the two groups of guide blocks 503 are respectively located at the two ends of the detection rod 200 and are not on the same horizontal line). Based on the above structure, when the detection rod 200 moves back and forth on the supporting base plate 3 along with the displacement mechanism, the detection rod 200 can drive the connecting rod 501 to move synchronously during the movement, and when it moves to the vicinity of the guide block 503, the wedge block 502 located at the end of the connecting rod 501 can cooperate with the guide block 503 (that is, the inclined surface of the wedge block 502 and the guiding inclined surface of the guide block 503 are in contact with each other and in the process of linear movement, a force with a tendency to move left and right will be generated on the guiding inclined block), so that the connecting rod 501 can slide left and right through the limiting sliding sleeve 500 (because the two groups of guide blocks 503 are staggered with each other, that is, when the wedge block 502 at one end of the connecting rod 501 contacts the guide block 503, the wedge block 502 at the other end of the connecting rod 501 contacts the guide block 503). 2 does not contact with the guide block 503, so that the connecting rod 501 can slide left and right during the downward movement through the contact and extrusion between the wedge blocks 502 arranged at both ends and the misaligned guide blocks 503 by the continuous reciprocating movement of the connecting rod 501 with the detection rod 200), and after the connecting rod 501 slides left and right, it can drive the connecting rod 5011 to move approximately in a circle through the left and right sliding of the strip groove 5010, thereby driving the second camera 201 to swing left and right on the top of the detection rod 200, so that the second camera 201 can fully cover the battery components on the vehicle chassis during the swinging process, and the second camera 201 head can fully collect and record images of the battery components on the vehicle chassis at different angles.

[0081] Furthermore, as a preference, the two sliding sleeves 500 are slidably matched with the two ends of the connecting rod 501, and the interior of the two sliding sleeves 500 is connected to the connecting rod 501 through a tension spring. By arranging the tension spring in the sliding sleeve 500, after the connecting rod 501 is displaced, the tension spring can pull the connecting rod 501 back to its original position through the elastic restoring force generated by the stretching, thereby facilitating the connecting rod 501 to continuously slide left and right during the reciprocating movement.

[0082] Example 4

[0083] Based on the above-mentioned embodiments 1 to 3, this embodiment discloses a rental management method for new energy vehicles. For details, please refer to Figure 8 The method is based on a rental management system for new energy vehicles, which includes the following steps:

[0084] S1. The rental personnel sends a rental instruction to the central control terminal through the mobile terminal;

[0085] S2. After receiving the rental instruction sent by the mobile terminal, the central control terminal sends a first key instruction and a second key instruction to the mobile terminal and the vehicle terminal respectively;

[0086] S3. After receiving the second key instruction through the mobile terminal, the rental personnel go to the rental location and input the second key instruction through the verification input unit on the detection component. After the second key instruction input by the verification input unit is successfully matched with the first key instruction of the unlocking module, the vehicle is unlocked, and the vehicle appearance detection unit 10 and the vehicle chassis detection unit 20 of the detection component are started to perform pre-rental detection on the new energy vehicle;

[0087] S4, after the vehicle chassis detection unit 20 is working, the displacement mechanism drives the detection rod 200 to reciprocate along the length direction of the support base plate 3, so that the second camera 201 on the detection rod 200 performs visual image acquisition and detection on the vehicle chassis, and when the detection rod 200 reciprocates, the traction mechanism 4 pulls the portal frame 100 to move on the support base plate 3, so that the first camera 101 performs image detection and acquisition on the exterior surface of the vehicle, and uploads it to the central control end for recording;

[0088] S5. After the inspection component has finished inspecting the vehicle's appearance and chassis, the rental staff can drive the vehicle for use. During the driving process, the on-board terminal is used to collect the vehicle's driving status information and transmit it back to the central control terminal for recording in a timely manner. When the rental staff has finished using the rental vehicle, they drive the vehicle to the support platform and start the inspection component to collect images of the new energy vehicle's appearance and chassis for post-rental inspection. If no damage is found in the vehicle after the rental inspection, the vehicle rental work is completed.

[0089] It should be noted that the above method realizes the automation and intelligence of the rental process, significantly improving the efficiency and safety of car rental. Specifically, firstly, through the interaction between the mobile terminal and the central control terminal, the rental personnel can conveniently issue rental instructions and receive key instructions, simplifying the rental process and reducing human errors. Secondly, the verification mechanism of the key instruction ensures that only authorized personnel can unlock and use the vehicle, enhancing the safety of the vehicle. Moreover, the introduction of the detection component enables the vehicle to be fully inspected for appearance and chassis before and after the rental, which not only helps to timely discover and record the damage of the vehicle and avoid rental disputes, but also ensures the maintenance and maintenance of the vehicle. During the use of new energy vehicles, the vehicle driving status information is collected and transmitted back in real time through the vehicle-mounted terminal, so that the central control terminal can monitor the status of new energy vehicles in real time, improving the transparency and controllability of the use of new energy vehicles. Finally, the vehicle inspection after the end of the lease provides the leasing company with feedback on the use of the vehicle, which helps to optimize the rental service and the management of new energy vehicles.

[0090] The above specific implementation methods further describe the purpose, technical scheme and beneficial effects of the present invention in detail. It should be understood that the above are only specific implementation methods of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of the present specification are schematic diagrams, which are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can implement, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and the like cited in this specification are only for the convenience of description, and are not used to limit the scope of the present invention. The change or adjustment of the relative relationship should also be regarded as the scope of the present invention without substantially changing the technical content.

Claims

1. A rental management system for new energy vehicles, characterized in that; The vehicle comprises a central control terminal, a vehicle-mounted terminal and a detection component, wherein the central control terminal is respectively connected to the vehicle-mounted terminal and the detection component for communication, the vehicle-mounted terminal is used to collect vehicle driving status information and transmit it back to the central control terminal in a timely manner, the detection component is used to collect vehicle status before and after rental, and upload it to the central control terminal for recording, and the detection component comprises a vehicle appearance detection unit (10) and a vehicle chassis detection unit (20), and the vehicle appearance detection unit (10) and the vehicle chassis detection unit (20) are both located on a supporting base plate (3); The vehicle-mounted terminal is installed in the vehicle, and includes an unlocking module, a positioning module, a sensor unit and a communication module that are interconnected. The unlocking module is used to control the unlocking start of the vehicle, the positioning module is used to collect the current vehicle position information in real time, the sensor unit is used to collect the vehicle driving state and performance data, and the communication module is connected to the central control terminal for communication, and is used to transmit the current vehicle position information and vehicle driving state performance data collected by the positioning module and the sensor unit to the central control terminal; The communication module includes a network channel unit, a radio channel unit and a channel switching unit. Initially, the communication module is connected to the central control terminal through the network channel unit. The channel switching unit is used to switch the network channel unit and the radio channel unit according to the signal strength and communication quality between the communication module and the central control terminal to ensure the stability of the communication connection between the communication module and the central control terminal. The channel switching unit includes a signal monitor, a communication quality evaluator and a switching decision execution unit, wherein the signal monitor is used to monitor the signal parameters of the current network channel unit, the communication quality evaluator is used to receive the signal parameters of the current network channel unit, analyze and evaluate them, and generate an evaluation result and transmit it to the switching decision execution unit, the switching decision execution unit receives the evaluation result from the communication quality evaluator, and determines whether to switch, and if switching is to be performed, generates a switching instruction and sends it to the communication module to perform channel switching; The signal monitor monitors the signal parameters of the current network channel unit, including signal strength, signal interference level, bit error rate and packet loss rate. The specific process of the communication quality evaluator analyzing and evaluating the signal parameters of the current network channel unit and generating an evaluation result includes: Step 1: preprocessing the signal parameters of the monitored network channel unit to remove abnormal values ​​and noise in the signal parameters, thereby improving data quality; Step 2, extracting feature vectors from the preprocessed data based on a recurrent neural network model, wherein the recurrent neural network model includes an input layer, a hidden layer, and an output layer, the input layer includes four nodes, which are respectively used to take the signal strength, signal interference level, bit error rate, and packet loss rate of signal parameters as input features, the hidden layer performs time series analysis on these parameters through multiple cyclic units, and captures the characteristics of signal changes over time, and then uses the ReLU activation function to introduce a nonlinear relationship to iteratively calculate it and generate a time series feature vector output in the output layer; Step 3, assigning different weights to the importance of each feature vector in the time series feature vector extracted by the recurrent neural network model in step 2, and then summing the weighted feature values ​​of each feature vector according to the weighted average algorithm to calculate the overall communication quality score result; In step 3, the calculation process of the weighted average algorithm satisfies: ； in, Represents the calculated overall communication quality score result, Represents the first eigenvectors, where the total number of eigenvectors is indivual, Indicates The value of the feature vector is generated by the recurrent neural network model after performing time series analysis on the signal parameters in step 2. Indicates The weight of a feature vector is used to indicate the relative importance of the feature vector to the overall communication quality, which is learned in advance by the model according to the importance of the feature vector; The switching decision execution unit includes a comparison mechanism and a parameter buffer, wherein the comparison mechanism is preset with a communication quality standard threshold, and the communication quality standard threshold includes a communication quality minimum standard value and the highest standard value of communication quality , when the calculated overall communication quality score is < or > When the switching decision execution unit considers that the communication quality of the current channel does not meet the communication requirements, it triggers the channel switching mechanism, generates a switching instruction and sends it to the communication module for channel switching. The parameter buffer is used to synchronize and cache the current channel parameters and communication status information after the switching instruction is generated.

2. A rental management system for new energy vehicles according to claim 1, characterized in that: The vehicle appearance detection unit (10) comprises a door frame (100) and a plurality of first cameras (101) equidistantly arranged inside the door frame (100), the two ends of the bottom of the door frame (100) being slidably connected to a support base plate (3), the vehicle chassis detection unit (20) comprising a detection rod (200) and a plurality of second cameras (201) mounted on the upper part of the detection rod (200), the detection rod (200) being slidably connected to the support base plate (3) via a displacement mechanism (202); the detection rod (200) and the door frame (100) are connected via a traction mechanism (4); Initially, the detection rod (200) and the portal frame (100) are respectively located at two ends of the length direction of the support base plate (3). Before or after the vehicle is rented, when the detection component collects the state of the vehicle, the vehicle enters the support base plate (3), the vehicle appearance detection unit (10) and the vehicle chassis detection unit (20) start to work and collect images of the vehicle appearance and its chassis. When the vehicle chassis detection unit (20) collects images, the displacement mechanism drives the detection rod (200) to move along the length direction of the support base plate (3), so as to perform comprehensive image detection and collection of battery components on the vehicle chassis through the second camera (201). When the detection rod (200) moves, the portal frame (100) is pulled to slide through the traction mechanism (4), so as to perform image detection and collection of the vehicle appearance surface through the first camera (101).

3. A rental management system for new energy vehicles according to claim 2, characterized in that: The traction mechanism (4) comprises traction rope groups correspondingly arranged at two ends of the detection rod (200), and any of the traction rope groups comprises two guide wheel groups (410) and two steel wire ropes (400), the two guide wheel groups (410) are respectively located at two ends of the support plate in the length direction, one end of the two steel wire ropes (400) is respectively connected to the front and rear of the detection rod (200), and the other ends of the two steel wire ropes (400) pass through the two guide wheel groups (410) and are connected to two sides of the corresponding bottom end of the portal frame (100).

4. A rental management system for new energy vehicles according to claim 1, characterized in that: The vehicle further comprises a mobile terminal, wherein the mobile terminal is used for the rental personnel to send a rental instruction to the central control terminal, and the central control terminal is used for sending a first key instruction and a second key instruction to the unlocking module of the vehicle-mounted terminal and the mobile terminal respectively after receiving the rental instruction sent by the mobile terminal. A verification input unit is also provided on one side of the support base plate (3), wherein the verification input unit is in communication connection with the unlocking module, and the verification input unit is used for the rental personnel to input the second key instruction and to verify and compare the second key instruction with the first key instruction of the unlocking module. If the verification and comparison are successful, the unlocking module is started to unlock the vehicle, and the vehicle appearance detection unit (10) and the vehicle chassis detection unit (20) are started to perform pre-rental detection on the new energy vehicle.

5. A rental management method for new energy vehicles, characterized in that: The method is based on a rental management system for new energy vehicles according to any one of claims 1 to 4, and the method comprises the following steps: S1. The rental personnel sends a rental instruction to the central control terminal through the mobile terminal; S2. After receiving the rental instruction sent by the mobile terminal, the central control terminal sends a first key instruction and a second key instruction to the mobile terminal and the vehicle terminal respectively; S3, after receiving the second key instruction via the mobile terminal, the rental personnel goes to the rental location and inputs the second key instruction via the verification input unit on the detection component. After the second key instruction input by the verification input unit is successfully matched with the first key instruction of the unlocking module, the vehicle is unlocked, and the vehicle appearance detection unit (10) and the vehicle chassis detection unit (20) of the detection component are started to perform pre-rental detection on the new energy vehicle; S4, after the vehicle chassis detection unit (20) is in operation, the displacement mechanism drives the detection rod (200) to reciprocate along the length direction of the support base plate (3), thereby enabling the second camera (201) on the detection rod (200) to perform visual image acquisition and detection on the vehicle chassis, and when the detection rod (200) reciprocates, the traction mechanism (4) pulls the portal frame (100) to move on the support base plate (3), so as to perform image detection and acquisition on the exterior surface of the vehicle through the first camera (101), and upload the image to the central control terminal for recording; S5. After the inspection component has finished inspecting the vehicle's appearance and chassis, the rental staff can drive the vehicle for use. During the driving process, the on-board terminal is used to collect the vehicle's driving status information and transmit it back to the central control terminal for recording in a timely manner. When the rental staff has finished using the rental vehicle, they drive the vehicle to the support platform and start the inspection component to collect images of the new energy vehicle's appearance and chassis for post-rental inspection. If no damage is found in the vehicle after the rental inspection, the vehicle rental work is completed.

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