Intelligent anti-theft method and system for ladder truck

Abstract

The invention relates to the technical field of operation transportation, and discloses an intelligent anti-theft method and system for a ladder truck, and the method comprises the steps: a controller and a positioning terminal carry out bidirectional identity authentication based on a pre-burnt unique hardware fingerprint code and a GPS dynamic verification code; monitoring 4G signal intensity in real time, automatically switching to a Bluetooth ad hoc network mode when the signal intensity is lower than a threshold value, and authorizing the handheld terminal to send an emergency instruction through a dynamic temporary password; vehicle postures are judged through a sensor and a supporting leg state sensor, and if the height of the arm support is larger than a set value, a delayed locking mode is started, and arm descending operation is executed preferentially; if the vehicle is in a ground static state, the vehicle is locked immediately; in the vehicle locking state, temporary unlocking is achieved through voiceprint and dynamic password or authentication of the fingerprint recognition module, and the unlocking duration is set according to the scene type. The problems of high-altitude vehicle locking risks, signal dependence, inconvenient unlocking and equipment loopholes in the prior art are solved, and the purposes of high safety, emergency response and theft and disassembly prevention are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of work transportation, in particular to a vehicle accessory or system for preventing or indicating unauthorized use or theft prevention. BACKGROUND

[0002] With the economy entering the post-infrastructure era, a large number of buildings, power, communications, transportation, municipal, landscaping, airports, ports, etc. need to be maintained, cleaned, and inspected. The application of aerial work vehicles in this regard has also been widely promoted and popularized. Due to the particularity and complexity of the application environment of aerial work vehicles, the demand for theft prevention is becoming higher and higher.

[0003] For example, the Chinese patent with publication number CN119428540A discloses a vehicle theft prevention method and a vehicle theft prevention system, which provides the following technical solution. The present application relates to a vehicle theft prevention method and a vehicle theft prevention system. The vehicle theft prevention method is implemented by at least a vehicle electronic theft prevention system, a chassis electronic control unit and an electronic parking brake. The method comprises: the chassis electronic control unit generates a random number and sends the random number to the vehicle electronic theft prevention system; between the chassis electronic control unit and the vehicle electronic theft prevention system, based on the random number and the PIN and key parameters initially configured in the chassis electronic control unit and the vehicle electronic theft prevention system, a theft prevention authentication is performed and a theft prevention authentication result is obtained; and based on the theft prevention authentication result, the electronic parking brake controls whether to unlock the wheel caliper. According to the present application, a vehicle theft prevention method and a vehicle theft prevention system with higher safety and reliability can be provided. However, the above-mentioned vehicle theft prevention method and vehicle theft prevention system implement GPS dynamic verification code calculation, Bluetooth ad hoc network emergency communication, high-altitude attitude sensing delay locking and biological feature unlocking, and lack scene-based security and emergency handling capability. SUMMARY

[0004] The present application solves the problems of high-altitude locking risk, signal dependence, unlocking inconvenience and device vulnerability in the prior art, and proposes an intelligent theft prevention method and system for aerial work vehicles, achieving the purposes of high safety, emergency response and theft prevention.

[0005] Further, the present application maintains emergency communication when the signal is weak through GPS dynamic verification code and Bluetooth ad hoc network, ensures the safety of command transmission; realizes safe locking strategy combined with attitude sensor, avoids accidents; biological feature unlocking is customized according to scene, optimizes convenience and improves overall theft prevention reliability.

[0006] To achieve the above-mentioned purposes, the present application adopts the following technical solutions: An intelligent theft prevention method for aerial work vehicles, comprising: The controller and the positioning terminal perform two-way identity authentication based on a pre-recorded unique hardware fingerprint code and a GPS dynamic verification code; the 4G signal strength is monitored in real time, and when the signal strength is lower than a threshold value, the system automatically switches to a Bluetooth ad hoc network mode, and the handheld terminal sends an emergency command through a dynamic temporary password authorization; The vehicle attitude is determined by sensors and leg state sensors, and if the boom height is greater than a set value, the delayed locking mode is entered and the boom is lowered preferentially; if the vehicle is in a ground static state, the vehicle is immediately locked. In the locked state, temporary unlocking is realized through voiceprint and dynamic password or fingerprint recognition modules, and the unlocking duration is set according to the scene type.

[0007] A comprehensive anti-theft mechanism is provided, which combines hardware identity authentication, network adaptive switching, attitude sensing locking, and biometric unlocking, which enhances the security and flexibility of the system: two-way identity authentication prevents device replacement or fraud, Bluetooth ad hoc network maintains emergency operation when the 4G signal is weak, and avoids signal blind area false locking; attitude sensing preferentially lowers the boom to prevent accidents caused by directly locking the vehicle during aerial work; temporary unlocking sets the duration according to different scenes, improving operation convenience and safety. Overall, it reduces the risk of false locking and improves the usability of the aerial vehicle in complex environments.

[0008] An intelligent anti-theft system for an aerial vehicle, comprising: A controller module connected to the positioning terminal module, transmitting data based on a dynamic verification code two-way authentication protocol; An attitude sensing module including an inclination sensor, a height sensor, and a leg state sensor, which collects vehicle attitude data in real time and transmits it to the controller module; An authentication module integrated into the control handle for fingerprint recognition and voiceprint collection.

[0009] The system integrates anti-theft modules to realize data collaboration and intelligent decision-making. The controller module and the positioning terminal module are based on dynamic verification code two-way authentication to ensure communication security; the attitude sensing module combines inclination, height, and leg sensors to monitor the vehicle state in real time; the authentication module supports fingerprint and voiceprint collection. From simple locking logic to comprehensive system, it provides all-round anti-theft protection, improves response speed and reliability.

[0010] As a preferred, the two-way identity authentication of the hardware fingerprint code and the GPS dynamic verification code includes that the controller generates a four-digit random code every minute and sends it to the positioning terminal, the positioning terminal generates a verification code based on the IMEI number and a preset algorithm, and the hardware fingerprint authentication uses the SM4 national encryption algorithm to encrypt the PUF physical unclonable code for two-way transmission.

[0011] The reliability and tamper resistance of the anti-theft system are significantly improved. The GPS dynamic verification code is calculated by random code and IMEI, ensuring the legality of the GPS device. The SM4 national encryption algorithm encrypts the PUF fingerprint code, preventing the ECU or TBOX from being replaced or forged as a whole. This realizes dynamic and encrypted two-way verification, effectively avoids the risk of theft caused by ECU removal or replacement, and enhances the overall security of the system.

[0012] As a preferred embodiment, the Bluetooth self-organizing network specifically includes: supporting multi-hop relay communication, requiring dynamic temporary password unlocking, allowing only basic action instruction transmission, including lifting and micro-motion, and fault state feedback.

[0013] A reliable emergency communication network is provided when the 4G signal is lost, ensuring that the aerial vehicle can still operate safely in remote or signal blind areas. The Bluetooth Mesh emergency control network supports multi-hop relay to expand the operation radius to 200 meters, authorizes the handheld terminal through a dynamic temporary password (generated by the vehicle owner's APP), and prevents unauthorized access. At the same time, the instruction is limited to only basic actions, ensuring basic operation capability in weak signal areas and avoiding frequent vehicle locking problems caused by reliance on 4G networks, thereby improving operation efficiency and safety.

[0014] As a preferred embodiment, the entering delay locking mode and preferentially executing the lowering arm operation specifically includes: sending an audible and visual alarm to the control handle, limiting power output to only allow lowering arm and leg retraction operations, and automatically triggering full vehicle locking after the vehicle is safely landed.

[0015] The safety of the operator is prioritized to avoid falling accidents caused by directly locking the vehicle during aerial work. When the arm height is greater than a set value (such as 2 meters), the ECU sends an audible and visual alarm to remind the operator, limits the power output to only allow lowering the arm and retracting the legs, and executes full vehicle locking after the vehicle is safely landed. This complies with the safety specifications for special equipment, addresses the risks in high-altitude states, and reduces the occurrence of secondary safety accidents.

[0016] As a preferred embodiment, when the controller and the positioning terminal detect that the shell pressure change is greater than a set value, the backup battery-powered locking system is started and the platform is reported.

[0017] The anti-disassembly and anti-theft capabilities are enhanced to prevent the device from being illegally removed. A pressure sensor is implanted in the ECU / TBOX shell, a backup battery-powered locking system is started, and the platform is reported, providing hardware-level physical protection. Once disassembly is detected, the system responds immediately, avoiding the shortcomings of relying solely on software verification, ensuring that the vehicle can still be reliably locked when the device is damaged, and improving the overall anti-theft reliability.

[0018] Preferably, the unlocking duration is set according to the scene type, including: the regular maintenance scene adopts fingerprint unlocking, the emergency rescue scene adopts voiceprint and dynamic password unlocking, and the unlocking duration of the emergency rescue scene is greater than that of the regular maintenance scene.

[0019] A flexible and scenario-based unlocking mode is provided, improving the operation convenience and emergency response capability. The multi-modal biometric temporary unlocking adopts two-factor authentication of fingerprint and voiceprint + dynamic password, the regular maintenance scene uses fingerprint unlocking, the emergency rescue scene uses voiceprint + dynamic password unlocking, and the unlocking duration difference adapts to different needs. This solves the problem of low password input efficiency, reduces the risk of leakage through encryption audit, and improves the practicality and security of temporary unlocking.

[0020] Preferably, in the locked state, the vehicle body inclination is detected by a six-axis gyroscope, and if the inclination is > 5°, the hydraulic system is controlled to automatically level.

[0021] Prevent the vehicle from overturning due to terrain inclination when locking the vehicle, and ensure the safety of the locking process. The ECU integrates a six-axis gyroscope sensor to detect the inclination > 5°, and controls the hydraulic system to automatically level, which avoids the risk of directly disabling power on inclined terrain in traditional locking. Through hierarchical restriction, the security of the anti-theft mechanism is improved, and the accident rate is reduced.

[0022] Preferably, when the jib height is greater than a set value, the offline locking trigger time is extended to 72 hours, and LoRa low-frequency communication is enabled to maintain the basic link.

[0023] Optimize the locking strategy when working at high altitude to avoid frequent locking affecting work efficiency. In dynamic signal threshold adjustment, when the jib height > 2 meters, the offline locking time is extended to 72 hours, and LoRa low-frequency communication is enabled to maintain the basic link. This solves the problem of possible 24-hour locking, provides redundant communication, and enhances the usability in unstable signal environment, while ensuring the safety of high-altitude work.

[0024] Preferably, the controller module and the positioning terminal module are also provided with a tamper-proof detection unit, which monitors the change of shell pressure through a pressure sensor; the controller module is built-in with an SM4 encryption chip and a PUF fingerprint generation unit; the attitude sensing module is linked with the hydraulic system, and the vehicle body inclination is automatically corrected when the locking instruction is triggered.

[0025] The hardware integrity and safety linkage mechanism of the anti-theft system are strengthened. The tamper-proof detection unit monitors the change of the shell through a pressure sensor to prevent illegal disassembly; the SM4 encryption chip and the PUF fingerprint generation unit ensure the reliability of two-way authentication; the attitude sensing module is linked with the hydraulic system to automatically level, and the vehicle body inclination is corrected when locking, avoiding the safety hazards that may be caused by locking.

[0026] Compared with the prior art, the present application has the beneficial effects that

[0027] 1. The present application effectively prevents key equipment from being replaced or counterfeited through bidirectional authentication of hardware fingerprint code and GPS dynamic verification code, thereby avoiding overall theft risk. Meanwhile, the anti-disassembly detection unit combined with the standby battery lock mechanism provides hardware-level protection when the equipment is subjected to physical damage, ensures reliable locking and reporting even if it is illegally disassembled, and significantly enhances the overall attack resistance and reliability of the anti-theft system.

[0028] 2. The present application adopts attitude sensing to realize a scene-based locking strategy. When working at a high altitude, the delayed locking mode is entered, the boom is lowered and the legs are retracted, and an alarm is issued, thereby avoiding the operator being trapped at a high altitude due to sudden communication locking. At the same time, the vehicle body inclination is automatically detected during locking and the hydraulic system is adjusted to level, thereby preventing the vehicle from overturning when locking on an inclined terrain. The Bluetooth communication maintains a basic link and emergency operation in a weak 4G network, and in combination with the offline locking time being extended to 72 hours in a high-altitude state, unnecessary locking interruption in a signal blind area or high-altitude operation is greatly reduced, thereby ensuring operation continuity and personnel safety.

[0029] 3. The present application provides a multi-modal and scene-based biological feature unlocking mechanism, solves the problem of inconvenient password input by the operator wearing gloves, and differentiates the unlocking time length, which is more in line with actual needs. The Bluetooth Mesh network supports multi-hop relay, allowing a handheld terminal within 200 meters to perform emergency control through a dynamic temporary password. These designs significantly improve the convenience of temporary unlocking and the emergency operation capability in a weak or no network, device locking, and other states, and at the same time, the security of the unlocking process is ensured through encryption audit. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 The present application is an intelligent anti-theft method and system for a climbing vehicle.

[0031] Figure 2 The present application is an intelligent anti-theft method and system for a climbing vehicle. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the following will further describe the embodiments of the present disclosure in combination with the drawings. The proportions of the components are not drawn according to the true proportions, and the proportions and sizes shown in the drawings should not limit the essential technical solutions of the present application. These embodiments do not describe all the details, and the present application is not limited to the specific embodiments described.

[0033] Referring to Figures 1-2 As shown in the drawings, an intelligent anti-theft method for a climbing vehicle comprises: The controller and the positioning terminal perform bidirectional identity authentication based on a pre-burned unique hardware fingerprint code and a GPS dynamic verification code; 4G signal strength is monitored in real time, and when the signal strength is lower than a threshold value, the system automatically switches to a Bluetooth self-organizing network mode, and a handheld terminal needs a dynamic temporary password authorization to send an emergency command through the network (only for lifting, micro-motion and fault state feedback). The vehicle attitude is determined by sensors and outrigger state sensors, and if the boom height is greater than a set value, the delayed locking mode is entered and the boom lowering operation is preferentially performed; if the vehicle is in a ground static state, the vehicle is immediately locked. In the locked state, temporary unlocking is realized through voiceprint and dynamic password or fingerprint recognition modules, and the unlocking duration is set according to the scene type.

[0034] An intelligent anti-theft system of an aerial vehicle, comprising: A controller module, connected with a positioning terminal module, transmits data based on a dynamic verification code bidirectional authentication protocol; An attitude sensing module, comprising an inclination sensor, a height sensor and an outrigger state sensor, which collects vehicle attitude data in real time and transmits it to the controller module; An authentication module integrated in a control handle for fingerprint recognition and voiceprint collection.

[0035] As Figure 1 shown in an embodiment, Figure 1 is a whole flowchart of the intelligent anti-theft method and system of the aerial vehicle. First, the controller and the positioning terminal (TBOX) perform bidirectional identity authentication based on a pre-burned unique hardware fingerprint code (PUF physical unclonable code) and a GPS dynamic verification code: the controller generates a four-digit random code (ID142) every minute, the positioning terminal generates a verification code (ID22B reply) through a preset algorithm combined with the IMEI number, and at the same time, the two parties transmit and cross-verify the hardware fingerprint code through the SM4 national encryption algorithm encryption; if any authentication fails (such as three consecutive verification code errors or fingerprint mismatch), the vehicle is triggered to be locked.

[0036] Subsequently, the 4G signal strength is monitored in real time. If the signal strength is lower than a threshold value, the system automatically switches to a Bluetooth Mesh self-organizing network mode, supports multi-hop relay communication (200 meters range), and a handheld terminal needs a dynamic temporary password authorization to send an emergency command through the network (only for lifting, micro-motion and fault state feedback).

[0037] At the same time, the vehicle attitude is determined by an inclination sensor, a height sensor and an outrigger state sensor: If the boom height > set value (such as 2 meters) or the outrigger is extended (overhead working state), enter the delayed locking mode: send an audible and visual alarm to the control handle (PCU), limit the power output to only allow arm lowering and leg retraction operations, and extend the offline locking trigger time to 72 hours, enable LoRa low-frequency communication to maintain the basic link; after the vehicle is safely landed, the full vehicle locking is automatically triggered.

[0038] If the vehicle is in a ground stationary state (boom not raised, outrigger retracted), immediately execute the locking.

[0039] When in the locking state: If the vehicle body inclination > 5° (through six-axis gyroscope), the control hydraulic system automatically levels the vehicle body.

[0040] Support multi-modal biometric temporary unlocking: fingerprint unlocking (2-hour validity) for regular maintenance scenarios, and voiceprint + dynamic password unlocking (6-hour validity) for emergency rescue scenarios. If the locking state changes during unlocking, the temporary unlocking is terminated.

[0041] In addition, if the shell pressure of the controller or positioning terminal changes > 50kPa (triggering the anti-disassembly mechanism), the standby battery-powered locking system is immediately started and reported to the platform.

[0042] Finally, all states are processed according to priority: GPS not installed > GPS offline > secondary locking > primary locking, and the execution results are monitored and controlled through the platform.

[0043] At the core anti-theft authentication level, the system uses a two-way authentication mechanism of hardware fingerprint code (PUF physical unclonable code) and GPS dynamic verification code. The controller generates a random code (ID142) every minute and sends it to the TBOX, and the TBOX generates a verification code (ID22B reply) through an encryption algorithm combined with the IMEI number, while both parties cross-verify through the SM4 national encryption algorithm to encrypt and transmit the hardware fingerprint code. This design completely avoids the risk of device replacement or forgery: dynamic verification code triggers locking for three consecutive errors, while the two-way authentication of hardware-level PUF fingerprint (such as ECU or TBOX being disassembled or replaced) will immediately trigger secondary locking and report to the platform. Combined with the anti-disassembly mechanism of the shell pressure sensor (starting standby battery locking when the pressure changes > 50kPa), it forms a double protection of "software dynamic encryption + hardware physical protection", which completely eliminates theft behavior from the root.

[0044] To address signal dependence issues, the system innovatively introduces a Bluetooth Mesh emergency network and a dynamic signal threshold adjustment strategy. When the 4G signal strength falls below the threshold, it automatically switches to a low-power Bluetooth 5.0 Mesh self-organizing network, supporting multi-hop relay to extend the operating radius by 200 meters. Handheld terminals (such as engineer tablets) require authorization via a dynamically generated temporary password from the app, allowing only the transmission of basic commands such as lifting and micro-motion, as well as fault status feedback. Simultaneously, considering the needs of high-altitude operations: when the boom height exceeds 2 meters, the offline vehicle locking trigger time is automatically extended to 72 hours, and LoRa low-frequency communication is enabled to maintain the basic link. This design completely solves the pain point of frequent accidental vehicle locking in blind spots such as remote construction sites and underground parking garages, ensuring operational continuity in weak network environments.

[0045] In terms of secure vehicle locking strategy, the system achieves scenario-based intelligent decision-making through attitude perception modules (tilt sensor + height sensor + outrigger sensor). If the vehicle is in a high-altitude operation state (boom > 2 meters or outriggers extended), the ECU enters a delayed locking mode: sending an audible and visual alarm to the PCU, restricting power output to allow only boom lowering and outrigger retraction operations, and triggering full vehicle locking only after safe landing, preventing the operator from being trapped at high altitude due to sudden communication locking. If the vehicle is stationary on the ground, it locks immediately to ensure rapid anti-theft response. In addition, the system automatically detects the vehicle's tilt angle (six-axis gyroscope monitoring > 5° tilt angle) when locking, and uses the hydraulic system to level the vehicle, preventing the vehicle from tipping over on sloping terrain caused by traditional locking methods, significantly reducing the risk of secondary accidents.

[0046] In terms of ease of unlocking, the system provides a multimodal biometric temporary unlocking mechanism. For routine maintenance scenarios, fingerprint unlocking (valid for 2 hours) is used, addressing the inconvenience of operators entering passwords while wearing gloves. For emergency rescue scenarios, a two-factor authentication system (valid for 6 hours) is implemented, where the operator reads a random string of numbers to complete voiceprint matching and dynamic code verification. This differentiated unlocking strategy significantly improves emergency response efficiency, while unlocking records are encrypted and uploaded to the cloud platform for auditing, balancing security and convenience.

[0047] Overall, this invention organically integrates modules such as two-way authentication, network redundancy switching, posture-aware locking, and biometric unlocking to form a closed-loop anti-theft ecosystem. It not only protects against device tampering (anti-tampering, anti-replacement) through hardware-level protection, but also balances anti-theft needs with operational safety through scene-adaptive strategies (delayed locking at high altitudes, automatic terrain leveling), and maintains emergency operation capabilities in weak network environments (Bluetooth Mesh + LoRa dual redundancy). Compared to traditional solutions, the false locking rate is significantly reduced, the risk of interruption during high-altitude operations is greatly reduced, and it supports remote emergency control up to 200 meters, truly realizing the core value of "anti-theft without disrupting work, locking the vehicle without locking safety."

[0048] like Figure 2 In one embodiment shown,Figure 2 This is a system block diagram of an intelligent anti-theft method and system for a ladder truck according to the present invention. The intelligent anti-theft system of the present invention consists of three core modules working in concert: The controller module interacts with the positioning terminal module (TBOX) via a dynamic verification code two-way authentication protocol. It generates a dynamic verification code (e.g., ID142) every minute and transmits it encrypted to the TBOX. Simultaneously, it receives a verification code (ID22B reply) generated by the TBOX based on the IMEI number. The module incorporates an SM4 national cryptographic algorithm encryption chip and a PUF physical unclonable fingerprint generation unit to ensure communication security and the uniqueness of device identity.

[0049] Attitude perception module: Integrates tilt sensor (six-axis gyroscope), height sensor and outrigger status sensor to monitor vehicle attitude in real time (such as boom height, outrigger extension / retraction status, vehicle tilt angle). When the boom height is detected to be greater than 2 meters or the outriggers are extended, the module triggers a delayed locking strategy; if the vehicle tilt angle is greater than 5°, the hydraulic system is activated to automatically level the vehicle to prevent overturning due to terrain tilt after locking.

[0050] Authentication module: Embedded in the control handle (PCU), supporting dual-modal biometric authentication of fingerprint recognition and voiceprint acquisition. For routine maintenance scenarios, fingerprint unlocking (valid for 2 hours) is used; for emergency rescue scenarios, a combination of voiceprint and dynamic password authentication is enabled (valid for 6 hours). The unlock command is encrypted before being transmitted to the controller module.

[0051] Anti-tamper detection unit: Pressure sensors are embedded in the controller module and the housing of the positioning terminal. If the pressure change is greater than 50 kPa (such as illegal disassembly), the backup battery-powered vehicle locking system will be activated immediately and the information will be reported to the platform.

[0052] Linked safety strategy: When the vehicle locking command is triggered, the attitude perception module simultaneously activates the hydraulic leveling system to ensure that the vehicle is locked in a level state; the offline locking time is extended to 72 hours in the high-altitude operation state, and LoRa low-frequency communication is enabled to maintain the basic link.

[0053] In another embodiment, the present invention provides an intelligent anti-theft method and system for a ladder truck, comprising the following components: a cloud platform (website), a TBOX (GPS), an ECU (vehicle controller), and a control handle (PCU). 1. Cloud Platform: The cloud platform is responsible for displaying the vehicle's location information, action information, alarm information, and fault information. Simultaneously, the cloud platform issues commands such as lock command and vehicle location command.

[0054] 2. TBOX: The TBOX primarily transmits signals wirelessly (4G network). It acts as a signal relay station, forwarding ECU information (action information, alarm information, fault information) to the cloud platform, while simultaneously relaying control commands from the cloud platform to the ECU. Another crucial function of the TBOX is positioning, determining the vehicle's latitude and longitude and forwarding this information to the cloud platform.

[0055] 3. ECU: The ECU is actually the vehicle controller. It collects control commands transmitted from the PCU and the cloud platform, performs comprehensive logic calculations, and controls the vehicle to perform various actions. At the same time, it transmits fault information to the PCU and the cloud platform for display, and feeds back the action execution results and command execution results to the cloud platform.

[0056] 4. PCU: Responsible for converting human control actions into electrical signals for ECU recognition, and displaying fault information fed back by the ECU.

[0057] As can be seen from the above process, the TBOX plays a key role in anti-theft. In the first case, the cloud platform cannot receive the TBOX signal, so an anti-theft control algorithm is needed to prevent vehicle loss. In the second case, the TBOX has a signal (4G network), but the ECU has been removed or replaced, so a control algorithm is also needed to prevent vehicle loss.

[0058] In the first scenario, when the cloud platform cannot receive the TBOX signal, one reason could be that the TBOX is in an environment without a 4G network, or the TBOX has been removed. Regardless of the situation, the vehicle is vulnerable to theft. The anti-theft control algorithm is as follows: The ECU monitors a specific periodic message from the TBOX. If this periodic message is not received within 3 seconds, the ECU will lock the vehicle directly. That is, the ECU will no longer receive any electrical signals transmitted from the handle, and the vehicle will not perform any actions, so the vehicle cannot be easily driven away.

[0059] In the second scenario, the cloud platform can receive the TBOX signal, but the ECU address carried in the ECU message information forwarded by the TBOX to the cloud platform is lost or is not the ECU address recorded by the cloud platform at the time of manufacture. The cloud platform detects this anomaly and sends an alarm message to the owner of the aerial work platform via SMS to remind the owner to check the vehicle and prevent it from being stolen.

[0060] In another embodiment, the following technical solution is specifically adopted: GPS not installed: If the GPS is unplugged and the ID210 address is not received for 2 minutes, the controller will determine that the GPS is offline. After powering on, the vehicle will be locked. After plugging the GPS back in, the vehicle will be unlocked.

[0061] The controller sends a four-digit random code to the GPS unit via ID142 every minute. Upon receiving the random code, the GPS unit calculates a verification code using the IMEI number and replies via bytes 3-8 of ID22B. The controller calculates its own verification code based on the bound IMEI and compares it with the code sent by the GPS unit. If three consecutive comparisons show different codes, the controller determines that the GPS unit has been replaced and initiates a "GPS not installed, lock vehicle" status. If the correct verification code is received, the "not installed, lock vehicle" status is cleared.

[0062] IMEI number calculation method: BYTE1 + BYTE2 + ... + BYTE8 (decimal).

[0063] Verification code calculation method: (Dynamic code thousands digit + 15) * (IMEI thousands digit + 25) * (Dynamic code hundreds digit + 25) * (IMEI hundreds digit + 35) + (Dynamic code tens digit + 35) * (IMEI tens digit + 45) * (Dynamic code units digit + 45) * (IMEI units digit + 55). Level 1 lock: GPS sends 01 in ID228. After receiving ID228, the controller determines that GPS indicates a Level 1 lock and replies with ID114:01. After power-on, the vehicle is locked at Level 1. Upon receiving ID228 and sending 00, the controller determines that GPS indicates a Level 1 lock and unlocks the vehicle, replying with ID114:00. Unlocking does not require power-on.

[0064] Level 2 Lock: The GPS sends 01 via ID229. Upon receiving ID229 01, the controller determines that the GPS indicates a Level 2 lock and replies with ID115:01. After power-on, the Level 1 lock is established. Upon receiving ID229 00, the controller determines that the GPS indicates a Level 2 lock and unlocks the vehicle, replying with ID115:00. Unlocking does not require power-on.

[0065] Status display priority: GPS not installed > GPS offline > Level 2 lock > Level 1 lock.

[0066] GPS offline: The controller sends a four-digit random code to the GPS via ID142 every 1 minute. After receiving the random code, the GPS replies with the correct four-digit verification code via the first and second bytes of ID22B. The controller starts judging from power-on. If it does not receive a reply for 6 consecutive times or receives an incorrect reply, it judges that the vehicle is in a no-signal state. When the vehicle is in a no-signal state for a cumulative period of 24 hours, it will lock the vehicle without signal after power-on.

[0067] Verification code calculation method: (thousands + 32) * thousands * thousands + individuals * 34 + (tens + 98) * (hundreds + 56).

[0068] Temporary unlock: When the vehicle is in a state where GPS is not installed, or when it is locked at level one or two, or when it is offline, the vehicle will be temporarily unlocked (without needing to be powered on) after entering the correct unlock code on the display screen. The vehicle will then be restored to its previous state after 2 hours. If the vehicle's locking status changes during the unlocking process, the temporary unlock will be lifted.

[0069] Permanent unlock: The IMEI number is obtained via the display screen. The GPS sends it to the controller via ID220, which saves it. The platform sends a permanent unlock command, and the GPS sends an ID22A unlock command (IMEI+7.0:1) to the controller. The controller then performs the permanent unlock (no power-on required). After permanent unlock, the controller returns to the permanent unlock state on ID140, and all locked and temporary unlock states are cleared. The GPS sends an ID22A unlock command (IMEI+7.0:0) to the controller, which then removes the permanent unlock and returns to the permanent unlock removed state on ID140.

[0070] In one embodiment, a low-power Bluetooth 5.0 Mesh module is integrated on the ECU, TBOX, PCU, and battery module.

[0071] When the 4G signal is lost, it automatically switches to Bluetooth Mesh self-organizing network: The PCU can send basic action commands (lifting, micro-motion) to the ECU via the Mesh network. The ECU can then transmit key status information (battery level, fault codes) back to the PCU display via the Mesh network.

[0072] Extended operating radius: Mesh networks support multi-hop relay, allowing remote handheld terminals (such as engineer tablets) to access and control within 200 meters. Bluetooth commands require a dynamic temporary password to unlock (generated by the vehicle owner's app, valid only once).

[0073] This design ensures basic operational capabilities in signal blind spots, avoids frequent vehicle locking, and maintains safety control through near-field authentication.

[0074] In one embodiment, a vehicle attitude sensor (tilt sensor + height sensor + outrigger status sensor) is integrated into the ECU to monitor in real time whether the vehicle is in a "high-altitude operation state".

[0075] When the TBOX signal is lost and the vehicle locking condition is triggered, the ECU first determines the vehicle status: If the vehicle is stationary on the ground (outriggers retracted, boom / gimbal not raised), immediately lock the vehicle.

[0076] If the vehicle is in high-altitude operation mode (boom height > 2 meters or outriggers extended), the ECU enters "delayed vehicle locking + emergency downgrade mode": Send an audible and visual alarm to the PCU to remind the operator of "Communication Anomaly, Please Land Safely Immediately". Allow the PCU to perform only descent and boom retraction actions (disallowing dangerous actions such as ascent and walking). After the vehicle lands safely, automatically trigger the locking mechanism. The cloud platform simultaneously receives the "High-Altitude Delayed Locking" status and pushes an alarm message to the vehicle owner.

[0077] This design avoids theft prevention mechanisms from causing falls from heights and complies with special equipment safety regulations.

[0078] Dynamic signal threshold adjustment: In one embodiment, an environmental signal quality assessment module is added (which monitors 4G / satellite signal strength in real time via TBOX) to dynamically adjust the vehicle locking trigger conditions based on vehicle status (boom height, vehicle speed). When the boom height exceeds 2 meters, the system automatically enters "high-altitude operation mode," extending the offline locking time to 72 hours and prioritizing boom lowering operations. When the vehicle is stationary, low-frequency communication (such as LoRa) is used to maintain a basic link with the controller to avoid accidental locking due to brief signal interruptions.

[0079] Emergency Evacuation Protocol: If the vehicle is locked during high-altitude operations, the controller will allow the boom to be lowered (restricting the lifting function) and display a countdown warning on the PCU screen, while simultaneously pushing an alarm to the cloud platform.

[0080] In one embodiment, a fingerprint recognition module is integrated into the PCU handheld unit to bind the biometric information of authorized operators. It supports two-factor authentication: voiceprint + dynamic password. The operator reads a random string of numbers (e.g., "7-0-3"), and the system verifies the voiceprint and matches it with a dynamic code (generated in real-time by the cloud platform).

[0081] Contextualized unlocking strategy: Routine maintenance scenario: Fingerprint unlock (2-hour temporary access). Emergency rescue scenario: Voiceprint + dynamic password unlock (extended to 6 hours), unlock records are encrypted and uploaded to the cloud platform for auditing.

[0082] In one embodiment, a six-axis gyroscope sensor is integrated into the ECU to monitor the vehicle body tilt angle in real time (triggered when >5°). Before the vehicle locking command is executed, the hydraulic system is automatically controlled to level the vehicle body, and the locking is performed only after ensuring safety.

[0083] Graded power limitation: Level 1 Lock: Only restricts boom lifting and traveling power, retains leveling function. Level 2 Lock: Completely disables power, but activates tilt alarm (real-time attitude data is pushed to the platform via TBOX).

[0084] In one embodiment, the ECU and TBOX are pre-programmed with unique hardware fingerprint codes (based on PUF physically unclonable technology). Each time the vehicle starts, the ECU and TBOX exchange fingerprint codes and cross-verify them (encrypted using the SM4 national cryptographic algorithm). If the fingerprints of either device do not match, a secondary vehicle lock is immediately triggered and reported to the platform.

[0085] Anti-tampering mechanism: A pressure sensor is implanted in the ECU / TBOX housing. If unauthorized removal causes a pressure change greater than 50 kPa, the backup battery-powered vehicle locking system will be activated.

[0086] This invention is not limited to the above-described embodiments. Any changes made to its shape or material composition, or any structural design using the methods provided by this invention, are considered variations of this invention and should be considered within the scope of protection of this invention.

Claims

1. An intelligent anti-theft method for a ladder truck, characterized in that, include: The controller and positioning terminal perform two-way identity authentication based on a pre-programmed unique hardware fingerprint code and a GPS dynamic verification code. Real-time monitoring of 4G signal strength; when the signal strength is below the threshold, it automatically switches to Bluetooth self-organizing network mode and authorizes the handheld terminal to send emergency commands through dynamic temporary password. The vehicle's attitude is determined by sensors and outrigger status sensors. If the boom height is greater than the set value, the vehicle enters a delayed locking mode and prioritizes the boom lowering operation; if the vehicle is stationary on the ground, it is locked immediately. When the vehicle is locked, it can be temporarily unlocked by authenticating with voiceprint and dynamic password or fingerprint recognition module. The unlocking time is set according to the scenario type.

2. The intelligent anti-theft method for a ladder truck according to claim 1, characterized in that, The hardware fingerprint code and GPS dynamic verification code are used for two-way identity authentication. The controller generates a four-digit random code every minute and sends it to the positioning terminal. The positioning terminal generates a verification code based on the IMEI number and a preset algorithm. The hardware fingerprint authentication uses the SM4 national cryptographic algorithm to encrypt the two-way transmitted PUF physical unclonable code.

3. The intelligent anti-theft method for a ladder truck according to claim 1 or 2, characterized in that, The Bluetooth self-organizing network specifically includes: support for multi-hop relay communication, dynamic temporary password unlocking for commands, and only basic action command transmission is allowed, including lifting, micro-motion, and fault status feedback.

4. The intelligent anti-theft method for a ladder truck according to claim 3, characterized in that, The specific steps of entering the delayed locking mode and prioritizing the lowering of the boom include: sending an audible and visual alarm to the control handle, limiting power output to allow only the lowering of the boom and the retraction of the legs, and automatically triggering the locking of the entire vehicle after the vehicle has landed safely.

5. The intelligent anti-theft method for a ladder truck according to claim 4, characterized in that, When the controller and the positioning terminal detect that the pressure change of its outer shell is greater than a set value, they activate the backup battery-powered vehicle locking system and report it to the platform.

6. The intelligent anti-theft method for a ladder truck according to claim 4 or 5, characterized in that, The unlocking time is set according to the scenario type, specifically including: fingerprint unlocking for regular maintenance scenarios, voiceprint and dynamic password unlocking for emergency rescue scenarios, and the unlocking time for emergency rescue scenarios is longer than that for regular maintenance scenarios.

7. The intelligent anti-theft method for a ladder truck according to claim 6, characterized in that, When the vehicle is locked, the tilt angle of the vehicle body is detected by a six-axis gyroscope. If the tilt angle is greater than 5°, the hydraulic system is controlled to automatically level the vehicle.

8. The intelligent anti-theft method for a ladder truck according to claim 7, characterized in that, When the boom height exceeds the set value, the offline vehicle locking trigger time is extended to 72 hours, and LoRa low-frequency communication is enabled to maintain the basic link.

9. An intelligent anti-theft system for a ladder truck, employing the intelligent anti-theft method for a ladder truck as described in any one of claims 1-8, characterized in that, include: The controller module is connected to the positioning terminal module and transmits data based on a dynamic verification code two-way authentication protocol. The attitude perception module, including tilt sensor, height sensor and outrigger status sensor, collects vehicle attitude data in real time and transmits it to the controller module; The authentication module, integrated into the control handle, performs fingerprint recognition and voiceprint collection.

10. The intelligent anti-theft system for a ladder truck according to claim 9, characterized in that, The controller module and the positioning terminal module are also equipped with an anti-tamper detection unit, which monitors changes in the pressure of the outer shell through a pressure sensor; the controller module has a built-in SM4 encryption chip and a PUF fingerprint generation unit; the attitude sensing module is linked with the hydraulic system and automatically corrects the vehicle body tilt angle when the vehicle locking command is triggered.

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