Sound control type lifting equipment

Abstract

The invention relates to the technical field of lifting machine manufacturing, in particular to sound control type lifting equipment. The voice module is electrically connected with the operation control module and comprises a voice receiving unit, a voice recognition unit and an instruction conversion unit. The voice receiving unit is used for receiving an external voice instruction; the voice recognition unit performs semantic recognition on an external voice instruction and extracts a lifting control instruction; the instruction conversion unit converts the lifting control instruction into an electric control signal and sends the electric control signal to the operation control module; the operation control module selectively controls the power unit to execute at least one action of starting, stopping and action amplitude adjustment. Full-voice control is achieved by means of the voice module, on one hand, dependence of manual operation is eliminated, the hands of an operator are liberated, the operator focuses on observing the state of a heavy object and the surrounding environment, and operation distraction is avoided; on the other hand, potential safety hazards caused by manual operation delay and instruction input deviation are reduced.

Description

Technical Field

[0001] This invention relates to the field of lifting machinery manufacturing technology, and in particular to a voice-controlled lifting device. Background Technology

[0002] Currently, most lifting equipment on the market relies on manual operation for control. Specifically, the operator needs to send control commands to the operation control module through control buttons or operating handles, and then the operation control module controls the power unit to perform actions such as starting, stopping, and adjusting the range of motion.

[0003] In actual operation, operators must focus on manually inputting control commands, making it impossible to simultaneously observe the condition of the load and avoid the surrounding environment. Distraction can easily lead to untimely or inaccurate command input, affecting lifting efficiency and potentially causing safety hazards due to operational errors. For example, in daily operations at a car repair shop, operators must bend over to operate the manual control buttons of a horizontal hydraulic jack, simultaneously monitoring the jack's lifting range and the support status of the vehicle's undercarriage. This is not only inconvenient but also highly distracting, easily leading to inaccurate lifting height control and potentially causing safety risks due to unstable support.

[0004] Therefore, it is urgent for technical personnel to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a voice-controlled lifting device, which aims to solve the problems of existing lifting devices relying on manual operation, being inconvenient to operate, and being prone to safety risks due to distraction.

[0006] This invention relates to a voice-controlled lifting device, comprising a device body, a power unit, a lifting actuator, and an operation control module; the device body serves as the mounting base for the power unit, the lifting actuator, and the operation control module; furthermore, the voice-controlled lifting device also includes a voice module; the voice module is electrically connected to the operation control module and includes a voice receiving unit, a voice recognition unit, and a command conversion unit; The voice receiving unit is used to receive external voice commands; The speech recognition unit is used to perform semantic recognition on external speech commands and extract lifting control commands; The command conversion unit is used to convert lifting control commands into corresponding electrical control signals and send them to the operation control module; The operation control module selectively controls the power unit to perform at least one of the following actions: start, stop, and adjustment of motion amplitude.

[0007] As a further improvement to the technical solution disclosed in this invention, the voice receiving unit is an omnidirectional microphone array; the four microphones are respectively set at the four edge points of the front, back, left and right of the device body, and work together to form a 360° voice capture area.

[0008] As a further improvement to the technical solution disclosed in this invention, the voice module also includes a noise filtering unit; the noise filtering unit is electrically connected to the voice receiving unit and is used to perform noise reduction processing on the received voice signal.

[0009] As a further improvement to the technical solution disclosed in this invention, the voice recognition unit has a preset voice command library; the preset voice command library includes lifting start command, lifting stop command, lifting increase range command, and lifting decrease range command; the voice recognition unit compares the received noise-reduced voice signal with the commands in the preset voice command library, and extracts the corresponding lifting control command if the comparison is successful, and does not output any command if the comparison fails.

[0010] As a further improvement to the technical solution disclosed in this invention, the power unit includes a drive motor, a pump station, and a hydraulic cylinder; the drive motor is connected to the pump station via transmission; the pump station is electrically connected to the operation control module, and it is connected to the hydraulic cylinder through a hydraulic pipeline; the hydraulic cylinder serves as the source power for the lifting actuator; the operation control module controls the start / stop and speed of the drive motor, and adjusts the output pressure and flow of the pump station to control the extension and retraction of the hydraulic cylinder.

[0011] As a further improvement to the technical solution disclosed in this invention, the voice-controlled lifting device also includes an authorized identity recognition unit; the authorized identity recognition unit is electrically connected to the operation control module and is used to authenticate the operator and output an authorization signal; the operation control module responds to the lifting control command transmitted by the voice module only when the authorized identity recognition unit outputs a valid authorization signal.

[0012] As a further improvement to the technical solution disclosed in this invention, the voice-controlled lifting device also includes a status feedback unit; the status feedback unit is electrically connected to the operation control module and linked with the authorization identification unit, and is used to collect the operating status and authorization identification status of the voice-controlled lifting device in real time; the operating status includes the working status of the power unit, the lifting height of the lifting actuator, and the working status of the voice module; the authorization identification status includes unauthorized, authorized, and authorized failure; the status feedback unit converts the collected signals into feedback signals and feeds them back to the user through voice broadcast or indicator light display.

[0013] As a further improvement to the technical solution disclosed in this invention, the voice module also includes a voice broadcasting unit; the voice broadcasting unit is electrically connected to the command conversion unit and the authorization identification unit; when the authorization identification unit completes the identity verification, the voice broadcasting unit simultaneously broadcasts authorization result prompts, including authorization passed prompts, operation can be performed prompts, authorization failed prompts, and please re-verify prompts; and when the command conversion unit converts the lifting control command into an electrical control signal and sends it to the operation control module, the voice broadcasting unit simultaneously broadcasts command execution prompts, including start successful prompts, stop operation prompts, rise X centimeters prompts, and fall X centimeters prompts.

[0014] As a further improvement to the technical solution disclosed in this invention, the voice-controlled lifting device also includes an emergency manual control unit; the emergency manual control unit is electrically connected to the operation control module and forms a parallel control structure with the voice module; the emergency manual control unit is only activated after the authorized identity recognition unit outputs a valid authorization signal, and is used to perform manual operation mode on the power unit when the voice module fails, cannot receive voice commands normally, or the voice control fails.

[0015] In practical applications, the voice-controlled lifting device disclosed in this invention can achieve at least the following beneficial technical effects, specifically: 1) The lifting equipment is fully voice-controlled via a voice module, eliminating reliance on traditional manual operation. The voice receiving unit can receive external voice commands in real time, and in conjunction with the semantic recognition function of the voice recognition unit, it can accurately extract core control commands such as lifting start, stop, and movement range adjustment. This eliminates the need for operators to manually press buttons or control handles, freeing up their hands and allowing them to focus on observing the status of the load and the surrounding environment, thus avoiding distraction during operation. 2) The command conversion unit can convert the identified lifting control command into the corresponding electric control signal and send it to the operation control module in real time to ensure the rapid response of the operation control module and control the power unit to perform corresponding actions. In this way, the safety hazards caused by manual operation delays and command input deviations are reduced, which is suitable for the actual operation needs of repair shops and other scenarios. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional schematic diagram of the voice-controlled lifting device disclosed in this invention.

[0018] Figure 2 This is also a three-dimensional schematic diagram of the voice-controlled lifting device disclosed in this invention (with the cover plate hidden).

[0019] Figure 3 This is a three-dimensional schematic diagram of the power unit in the voice-controlled lifting device disclosed in this invention.

[0020] Figure 4 This is a control logic flowchart of the voice-controlled lifting equipment control system disclosed in this invention.

[0021] 1-Equipment body; 2-Power unit; 21-Drive motor; 22-Pump station; 23-Hydraulic cylinder; 3-Lifting actuator; 4-Operating handle; 5-Operating control module; 6-Voice module; 61-Voice receiving unit; 62-Voice recognition unit; 63-Command conversion unit; 7-Noise filtering unit; 8-Preset voice command library. Detailed Implementation

[0022] The technical solution of the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. Figure 1 , Figure 2 The diagrams show two different states of the voice-controlled lifting device disclosed in this invention. It can be seen that the device mainly consists of the device body 1, power unit 2, lifting actuator 3, operation control module 5, voice module 6, and operating handle 4. The lifting actuator 3, as the structure that directly bears the heavy object and performs the lifting action, is controlled by the driving force of the power unit 2, and can perform lifting, raising, and lowering operations. The power unit 2 is installed in a dedicated internal area of ​​the device body 1, providing continuous and stable hydraulic driving force to the lifting actuator 3, and is the core power source for the device to perform lifting actions. The operation control module 5 is integrated into the central control area of ​​the device body 1, responsible for receiving and analyzing various control signals and outputting action control commands to the power unit 2. The operating handle 4 is detachably connected to the device body 1, allowing operators to flexibly adjust the placement of the device body 1 at the work site by pushing and rotating the operating handle 4.

[0023] Power unit 2 is the core functional unit that realizes the hydraulic drive of the lifting equipment, such as... Figure 3As shown, it mainly consists of three parts: a drive motor 21, a pump station 22, and a hydraulic cylinder 23. The drive motor 21, as the active power source of the entire hydraulic drive system, outputs torque that, in conjunction with the electrical energy supplied to the equipment body 1, directly drives the pump station 22 to perform work, realizing the conversion of electrical energy into hydraulic energy. The pump station 22 is electrically connected to the operation control module 5 and maintains communication with the hydraulic cylinder 23 through a high-pressure hydraulic pipeline, transmitting the converted hydraulic energy to the hydraulic cylinder 23 in the form of pressure and flow. The hydraulic cylinder 23, as the structure for converting hydraulic energy into mechanical energy, directly provides power to the lifting actuator 3, driving it to complete actions such as lifting upwards, lowering downwards, and adjusting the lifting height, realizing the transmission and conversion from power output to lifting action, ensuring the stability and precision of the lifting operation. The operation control module 5 can precisely control the start / stop and operating speed of the drive motor 21, synchronously adjusting the hydraulic output pressure and flow of the pump station 22, thereby controlling the extension and retraction of the hydraulic cylinder 23, and ultimately controlling the operating state of the lifting actuator 3.

[0024] To achieve voice-controlled operation of the lifting equipment and fundamentally eliminate the reliance on manual button and handle operation in traditional lifting equipment, this invention establishes an electrical connection between the voice module 6 as the core functional module and the operation control module 5. The two work together to form a complete system for receiving, recognizing, converting, and executing voice commands, enabling intelligent voice control of the lifting equipment. The voice module 6 integrates a voice receiving unit 61, a voice recognition unit 62, a command conversion unit 63, and a noise filtering unit 7. The voice receiving unit 61 employs an omnidirectional microphone array design, with four microphones positioned at the front, rear, left, and right edges of the equipment body 1. The multiple microphones work together to form a 360° omnidirectional voice capture area, enabling voice command acquisition from different directions and operating angles, effectively expanding the voice command reception range and providing a complete and effective raw signal foundation for subsequent voice recognition.

[0025] The voice receiving unit 61 is electrically connected to the noise filtering unit 7, and transmits the collected original voice signal to the noise filtering unit 7 in real time. The noise filtering unit 7 performs professional noise reduction processing on the received original voice signal, and filters out invalid signals such as background noise, mechanical noise of equipment operation, and environmental interference in the working environment through a special filtering algorithm, retaining only clear and valid voice command signals from the operator, and transmits the noise-reduced pure voice signal to the voice recognition unit 62 in real time.

[0026] The voice recognition unit 62 has a pre-stored preset voice command library 8. This library is customized to meet the actual operational needs of the lifting equipment and covers core control commands for the entire lifting operation process, including lifting start, lifting stop, lifting range, and lifting range, comprehensively matching the command requirements of daily lifting operations. The voice recognition unit 62 compares the received noise-reduced voice signal with the commands in the preset voice command library 8 one by one. When the comparison is successful, the corresponding lifting control command is extracted accurately and transmitted to the command conversion unit 63 in real time; when the comparison fails, no command is output, effectively avoiding equipment malfunctions caused by invalid signals or incorrect voice.

[0027] The instruction conversion unit 63 is electrically connected to the operation control module 5. Its core function is to convert the instruction form, converting the digital lifting control instructions extracted by the voice recognition unit 62 into electrical control signals that the operation control module 5 can directly recognize and execute, and sending the electrical control signals to the operation control module 5 in real time without delay. After receiving the electrical control signals, the operation control module 5 quickly analyzes the specific type of instruction and selectively controls the power unit 2 to perform at least one of the actions of starting, stopping, and adjusting the action range according to the instruction requirements. By adjusting the working status of the drive motor 21, pump station 22, and hydraulic cylinder 23, the lifting actuator 3 is ultimately driven to complete the corresponding lifting, lowering, and height adjustment actions, realizing the precise implementation from the issuance of voice instructions to the execution of equipment actions, forming a complete voice control link.

[0028] To further enhance the safety of lifting equipment operation and prevent equipment malfunctions and work-related accidents caused by unauthorized personnel, the voice-controlled lifting equipment of this invention is also equipped with an authorization identification unit. This unit is electrically connected to the operation control module 5 and is used to verify the identity of the user, outputting a corresponding authorization signal to the operation control module 5 based on the verification result. The operation control module 5 has a built-in strict authorization response mechanism; it will only respond to lifting control commands transmitted by various control modules when it receives a valid authorization signal from the authorization identification unit. If no valid authorization signal is received, even if the voice module 6 completes the entire process of voice command acquisition, recognition, and conversion, the operation control module 5 will not execute any control actions, thus improving the safety of equipment use.

[0029] Furthermore, this invention also includes a status feedback unit electrically connected to the operation control module 5. The status feedback unit works in conjunction with the authorization identification unit to collect real-time data on the full-dimensional operating status and authorization identification status of the voice-controlled lifting equipment, achieving real-time monitoring of the equipment's status across the entire domain. The equipment operating status includes the start / stop, speed, and hydraulic pressure of the power unit 2; the real-time lifting height and action status of the lifting actuator 3; and the signal reception, recognition, and conversion status of the voice module 6. The authorization identification status includes three core states: unauthorized, authorized, and authorized failed. The status feedback unit standardizes and converts the collected status signals into feedback signals that are intuitively perceptible to the operator. This feedback is then provided to the user in real-time through both voice broadcasting and indicator light displays, allowing the operator to accurately and readily grasp the equipment's operating and authorization status, providing clear and timely information for operational decisions during lifting operations.

[0030] As the core component for status feedback, the voice module 6 also integrates a voice broadcast unit. The voice broadcast unit is electrically connected to the command conversion unit 63 and the authorization identification unit, and is responsible for real-time voice broadcasting of device status and command execution results. After the authorization identification unit completes the user's authentication, the voice broadcast unit simultaneously broadcasts authorization result prompts to the operator, including prompts such as authorization successful, operation permitted, authorization failed, and request re-authentication, allowing the operator to know the authentication result immediately. Furthermore, when the command conversion unit 63 converts the lifting control command into an electrical control signal and sends it to the operation control module 5, the voice broadcast unit simultaneously broadcasts command execution prompts, including prompts such as successful start, stop operation, rise by X centimeters, and fall by X centimeters, allowing the operator to monitor the execution status and results of the commands in real time, forming a complete feedback loop for voice operation and improving the interactivity and controllability of voice operation.

[0031] Considering potential emergencies such as voice module 6 malfunction, interference from the on-site environment preventing normal reception of voice commands, and voice control link failure in the operation scenario, this invention electrically connects the emergency manual control unit integrated on the operating handle 4 with the operation control module 5, and the emergency manual control unit and the voice module 6 form a parallel control structure, providing multiple control guarantees for the lifting equipment and avoiding operation interruption due to the failure of a single control mode.

[0032] The emergency manual control unit has a strict authorization activation mechanism. It will only enter the operable state after the authorized identification unit outputs a valid authorization signal, preventing unauthorized manual operation and ensuring the safety of the manual control mode. When the voice control mode fails, authorized operators can directly execute the manual operation mode of the power unit 2 through the emergency manual control unit on the operating handle 4 to complete all operations such as starting, stopping, and adjusting the lifting height of the equipment, ensuring the smooth progress of the lifting operation. This effectively avoids the problem of operation interruption caused by the failure of a single control mode, and greatly improves the operational reliability and scenario adaptability of the equipment.

[0033] During actual operation of the equipment, its complete control logic is as follows: Figure 4 As shown, the operator first completes identity verification through the authorized identity recognition unit. After successful verification, the entire equipment enters the operable state, and the emergency manual control unit unlocks simultaneously. The operator issues voice commands according to the actual needs of the lifting operation. The voice commands are collected by the voice receiving unit 61, reduced by the noise filtering unit 7, and then transmitted to the voice recognition unit 62 for comparison and matching with the preset voice command library 8. If the match is successful, the command conversion unit 63 converts it into an electrical control signal and sends it to the operation control module 5. If the match fails, no command is output. After receiving the electrical control signal, the operation control module 5 accurately controls the power unit 2 to execute the corresponding lifting action according to the command requirements. At the same time, the status feedback unit collects the equipment operating status, lifting height, and command execution status in real time and provides real-time feedback to the operator through voice broadcast or indicator light display. If the voice module fails or the voice signal reception fails during the operation, causing the voice control to fail, the operator can directly switch to manual operation mode through the authorized emergency manual control unit to complete the subsequent lifting operation. The entire process achieves safe, efficient, and precise control of the lifting equipment, fully matching the actual operation and safety requirements of the operation.

[0034] It is worth noting that the voice module 6 has flexible adaptability. It can not only be independently connected to the operation control module 5 to realize pure voice intelligent control of the lifting equipment, but also be used in conjunction with the physical button control unit of the equipment. The two form a complementary dual active control mode, and the operator can flexibly choose the control method according to the on-site working environment and his own operating habits.

[0035] Finally, it should be noted that the voice-controlled lifting device of the present invention can be widely applied to various lifting operation scenarios such as automobile repair, cargo handling, and engineering construction. It can be directly applied to various lifting machinery such as horizontal hydraulic jacks, under-vehicle lifts, and small cranes. It can also be adapted to composite lifting devices formed by combining any one or more of the above-mentioned lifting machinery and auxiliary equipment. The application scenarios and compatible equipment types of the present invention are not limited to the scope listed above.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A voice-controlled lifting device, comprising a device body, a power unit, a lifting actuator, and an operation control module; the device body serves as the mounting base for the power unit, the lifting actuator, and the operation control module, characterized in that, It also includes a voice module; the voice module is electrically connected to the operation control module, and includes a voice receiving unit, a voice recognition unit, and a command conversion unit. The voice receiving unit is used to receive external voice commands; The speech recognition unit is used to perform semantic recognition on external speech commands and extract lifting control commands; The instruction conversion unit is used to convert lifting control instructions into corresponding electrical control signals and send them to the operation control module; The operation control module selectively controls the power unit to perform at least one of the following actions: start, stop, and amplitude adjustment.

2. The voice-controlled lifting device according to claim 1, characterized in that, The voice receiving unit is an omnidirectional microphone array; four microphones are respectively set at the front, back, left and right edge points of the device body, working together to form a 360° voice capture area.

3. The voice-controlled lifting device according to claim 2, characterized in that, The voice module also includes a noise filtering unit; the noise filtering unit is electrically connected to the voice receiving unit and is used to perform noise reduction processing on the received voice signal.

4. The voice-controlled lifting device according to claim 3, characterized in that, The voice recognition unit has a pre-stored preset voice command library; the preset voice command library includes lifting start command, lifting stop command, lifting increase command, and lifting decrease command; the voice recognition unit compares the received noise-reduced voice signal with the commands in the preset voice command library, and extracts the corresponding lifting control command if the comparison is successful, and does not output any command if the comparison fails.

5. The voice-controlled lifting device according to claim 1, characterized in that, The power unit includes a drive motor, a pump station, and a hydraulic cylinder; the drive motor is connected to the pump station via a transmission connection; the pump station is electrically connected to the operation control module, and is connected to the hydraulic cylinder via a hydraulic pipeline; the hydraulic cylinder serves as the power source for the lifting actuator; the operation control module controls the start / stop and speed of the drive motor, and adjusts the output pressure and flow rate of the pump station to control the extension and retraction of the hydraulic cylinder.

6. The voice-controlled lifting device according to any one of claims 1-5, characterized in that, It also includes an authorization identification unit; the authorization identification unit is electrically connected to the operation control module and is used to identify the operation user and output an authorization signal; the operation control module responds to the lifting control command transmitted by the voice module only when the authorization identification unit outputs a valid authorization signal.

7. The voice-controlled lifting device according to claim 6, characterized in that, It also includes a status feedback unit; the status feedback unit is electrically connected to the operation control module and linked with the authorization identification unit, and is used to collect the operating status and authorization identification status of the voice-controlled lifting device in real time; the operating status includes the working status of the power unit, the lifting height of the lifting actuator, and the working status of the voice module; the authorization identification status includes unauthorized, authorized, and authorized failed; the status feedback unit converts the collected signals into feedback signals and feeds them back to the user through voice broadcast or indicator light display.

8. The voice-controlled lifting device according to claim 7, characterized in that, The voice module also includes a voice broadcast unit; the voice broadcast unit is electrically connected to the instruction conversion unit and the authorization identification unit; when the authorization identification unit completes the identity verification, the voice broadcast unit synchronously broadcasts the authorization result prompts, including authorization passed prompts, operation can be performed prompts, authorization failed prompts, and please re-verify prompts; and when the instruction conversion unit converts the lifting control instruction into an electrical control signal and sends it to the operation control module, the voice broadcast unit synchronously broadcasts the instruction execution prompts, including start successful prompts, stop operation prompts, rise X centimeters prompts, and fall X centimeters prompts.

9. The voice-controlled lifting device according to claim 7, characterized in that, It also includes an emergency manual control unit; the emergency manual control unit is electrically connected to the operation control module and forms a parallel control structure with the voice module; the emergency manual control unit is only activated after the authorized identity recognition unit outputs a valid authorization signal, and is used to execute a manual operation mode on the power unit when the voice module fails, cannot receive voice commands normally, or the voice control fails.

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