An automatic adjustment device for personnel speaking

Abstract

This utility model relates to the field of lectern technology and discloses an automatic adjustment device for speaker presentations, including a radar measuring mechanism and an automatic adjustment control mechanism. The radar measuring mechanism is located on top of the automatic adjustment control mechanism and feeds back the detection results to the automatic adjustment control mechanism. The automatic adjustment control mechanism includes a standing platform, and a hydraulic assembly for controlling the raising and lowering of the standing platform is provided at the bottom of the standing platform. The hydraulic assembly includes a first support system, one side of which is connected to a second support system via a pressure-controlled solenoid valve. A hydraulic pump is provided on one side of the second support system. The pressure-controlled solenoid valve controls the raising and lowering of the first and second support systems by controlling the pressure of the hydraulic pump, thereby controlling the raising and lowering of the standing platform. This utility model can solve the problem in the prior art that the fixed microphone height and random speaker height make it impossible to adapt to the needs of speakers of different heights.

Description

Technical Field

[0001] This utility model relates to the field of lectern technology, specifically to an automatic adjustment device for people speaking. Background Technology

[0002] In various meetings, reports, and presentations, clear and fluent voice communication is crucial for ensuring effective information delivery. Upright microphones, as common audio input devices, are widely used in these settings.

[0003] However, existing upright fixed microphones generally have the following problems. (1) Inconvenient operation: In actual use, due to the large differences in the height of different speakers, it is difficult to adapt the microphone height, which means that the microphone position needs to be adjusted frequently every time a speaker is changed. Especially when multiple speakers speak in turn, staff have to go up on stage repeatedly to make adjustments. This process is tedious and time-consuming, and it is easy to interrupt the speaker's train of thought, which seriously affects the quality and fluency of the speech. (2) Limited function: It only supports speakers to stand and speak, and cannot meet the diverse needs of scenarios such as sitting and standing. For example, in some seminars or symposiums, speakers may need to sit to give in-depth explanations, or frequently switch between standing and sitting to help express their views. However, existing fixed microphones are limited in function and cannot adapt to these changes, which restricts the speaker's freedom of expression and also affects the comprehensiveness and accuracy of information transmission. Utility Model Content

[0004] The present invention aims to provide an automatic adjustment device for human speech, which can solve the problem in the prior art that the microphone height is fixed and the human height is random, resulting in the inability to adapt to the needs of human speakers of different heights.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: it includes a radar measuring mechanism for measuring the height of the speaker and microphone, and an automatic adjustment control mechanism for height adjustment. The radar measuring mechanism is located at the top of the automatic adjustment control mechanism and feeds back the detection results to the automatic adjustment control mechanism. The automatic adjustment control mechanism includes a standing platform. The bottom of the standing platform is provided with a hydraulic assembly for controlling the lifting and lowering of the standing platform. The hydraulic assembly includes a first support system. One side of the first support system is connected to a second support system through a pressure-controlled solenoid valve. One side of the second support system is provided with a hydraulic pump. The pressure-controlled solenoid valve controls the lifting and lowering of the first and second support systems by controlling the pressure of the hydraulic pump, thereby controlling the lifting and lowering of the standing platform.

[0006] The principle of this scheme is as follows: When the speaker stands on the standing platform, the radar measurement mechanism is activated to measure the height of the speaker and the microphone, and the detection results are fed back to the automatic adjustment control mechanism. The automatic adjustment control mechanism drives the hydraulic components to perform lifting operations based on the received data. That is, the pressure control solenoid valve controls the lifting of the first support system and the second support system by controlling the pressure of the hydraulic pump, thereby controlling the lifting of the standing platform to adjust the height of the standing platform to adapt to the height of different speakers.

[0007] The advantages of this solution are: (1) This solution can automatically adjust the relative height between the speaker and the microphone according to the height of each speaker, ensuring that everyone can use the microphone in the most suitable position, thus improving the speaker's experience.

[0008] (2) The first support system and the second support system work together to provide stronger support and higher stability, ensuring that the standing platform can operate smoothly under various load conditions; the pressure control solenoid valve can quickly release the pressure in the hydraulic cavity when the height needs to be reduced, ensuring that the platform descent process is smooth and safe, and avoiding the risk of sudden fall due to excessive pressure; the hydraulic pump is the core power source of the entire hydraulic assembly, responsible for delivering hydraulic oil to each support system to drive it to lift or perform other actions.

[0009] (3) Easy to operate: Speakers or staff do not need to manually adjust the microphone height, which simplifies the preparation process and reduces the complexity of operation.

[0010] (4) Improve efficiency: The automatic adjustment function significantly shortens the preparation time before a meeting or speech, improves the overall efficiency, and since no manual intervention is required for high-level adjustment, speakers can quickly take their positions and start speaking, reducing unnecessary waiting time.

[0011] (5) Enhanced flexibility and adaptability: It can automatically adjust to a suitable height regardless of the speaker's height.

[0012] Preferably, as an improvement, the first support system includes a longitudinally telescopic hydraulic jack, and a longitudinally telescopic support net is provided around the outside of the hydraulic jack. The support net is formed by connecting a number of diamond-shaped supports in sequence, and the diamond-shaped supports are formed by connecting a number of support rods at their apexes by hinges.

[0013] Beneficial effects: The longitudinal extension and retraction of the hydraulic jack and support net allows the entire support system to adapt to different height requirements; the coordinated adjustment of the hydraulic jack and support net ensures the stability of height adjustment; the diamond-shaped bracket forms a support net by hinged joints at the apex through multiple support rods, which has good rigidity and strength, can effectively distribute the load, and ensure the stability of the standing platform.

[0014] Preferably, as an improvement, a display panel is provided on one side of the standing platform. The display panel is used to remotely control the radar measurement mechanism to perform height measurement and drive the hydraulic component to adjust the standing platform. The radar measurement mechanism is used to measure the height L1 from the top of the speaker's head to the upper surface of the standing platform and the height L2 from the microphone to the lower surface of the standing platform, and feedback the detection results to the display panel.

[0015] Beneficial effects: The setting of the height L1 and the height L2 ensures that the standing platform can be automatically adjusted to the most suitable height according to the height of the speaker (i.e., standing height or sitting height), enhancing the flexibility and adaptability of the device. The design of the display panel enables adjustment without additional control equipment or moving to other positions, improving the convenience of use and accelerating the speed of the preparation process.

[0016] Preferably, as an improvement, the display panel includes a PLC controller and a remote control interface. Preset parameters are stored in the PLC controller. The preset parameters include the height L0 of the standing platform and the height L3 from the top of the speaker's head to the lips. The remote control interface is used for remote control operations.

[0017] Beneficial effects: The preset parameters are set for adjustment, providing judgment criteria and measures to ensure that each adjustment can achieve the expected effect, greatly simplifying the operation process, reducing the preparation time, making the whole process smoother and more efficient, and improving the work efficiency. At the same time, the selection of the preset parameters can adapt to different speaking postures, enhancing the flexibility and adaptability of the device. The remote control interface enables the operator to make adjustments at a certain distance, avoiding the inconvenience caused by frequent walking and manual adjustment.

[0018] Preferably, as an improvement, when L1 + L0 - L2 ≠ L3 and L1 + L0 - L2 > L3, the PLC controller sends a control instruction △L = L3 - (L1 + L0 - L2) to control the hydraulic component to reduce pressure and lower the height L0 of the standing platform until the requirement of L1 + L0 - L2 = L3 is met, then the hydraulic component stops adjusting. When L1 + L0 - L2 ≠ L3 and L1 + L0 - L2 < L3, the PLC controller sends a control instruction △L = L3 - (L1 + L0 - L2) to control the hydraulic component to increase pressure and raise the height L0 of the standing platform until the requirement of L1 + L0 - L2 = L3 is met, then the hydraulic component stops adjusting.

[0019] Beneficial effects: By monitoring and calculating the current height difference (L1 + L0 - L2) and comparing it with the preset target value (L3), the PLC controller can accurately adjust the height of the standing platform to ensure that each speaker can use the microphone at the most comfortable position.

[0020] Preferably, as an improvement, the height L3 ranges from 20cm to 25cm, and the height L0 ranges from 10cm to 50cm.

[0021] Beneficial effects: The height range L3 from the speaker's head to their lips is set according to ergonomic data, covering the physiological characteristics of most adult populations and ensuring that the device is suitable for speakers of different heights. The design of the standing platform height range (L0) ensures that it can meet the needs of speakers of varying heights, enhancing the versatility and applicability of the device.

[0022] Preferably, as an improvement, the standing platform includes a base plate and a top plate, the base plate and the top plate are connected by a support column, a standing plate is provided above the base plate, and the hydraulic assembly is located between the standing plate and the base plate, thereby adjusting the relative height between the speaker and the microphone.

[0023] Beneficial effects: The support columns firmly connect the base plate and the top plate, forming a stable frame structure that ensures the stability of the entire standing platform and prevents swaying or tilting during use. The positioning design of the standing plate, base plate, and hydraulic components allows for precise height adjustment while providing robust structural support, improving overall safety and reliability.

[0024] Preferably, as an improvement, the upper limit stabilizers are symmetrically provided on both sides of the top of the hydraulic jack and the lower limit stabilizers are symmetrically provided on both sides of the bottom of the hydraulic jack. The lower limit stabilizer includes a first baffle extending vertically downward and a second baffle extending obliquely downward from the upper end of the first baffle.

[0025] Beneficial effects: The upper and lower limit stabilizers ensure that the hydraulic jack will not shift or loosen during operation, further enhancing its stability. The first and second baffles work together to effectively prevent the hydraulic jack from shifting or loosening during operation, ensuring that it remains firmly fixed to the base plate.

[0026] Preferably, as an improvement, the hydraulic assembly further includes an oil tank, and the first support system and the second support system are connected to the oil tank together.

[0027] Beneficial effects: The oil sump design allows hydraulic oil to circulate efficiently between the two support systems, reducing oil demand and replacement frequency, and lowering operating costs.

[0028] Preferably, as an improvement, the radar measuring mechanism includes a radar controller, a radar wave receiver for receiving radar reflected waves is provided below the radar controller, and a radar wave transmitter for transmitting radar transmitted waves is provided in the middle of the radar wave receiver.

[0029] Beneficial effects: The structural design of the radar measurement mechanism makes the entire radar measurement mechanism more compact, reduces the space occupied by the equipment, and can shorten the transmission distance between the radar transmitted wave and the reflected wave, reduce signal loss, and improve measurement accuracy.

[0030] The beneficial effects of this solution are: (1) This solution can automatically adjust the relative height of the standing platform and the microphone according to the actual height of each speaker through radar measurement mechanism, hydraulic components and PLC controller, so as to achieve accurate height matching.

[0031] (2) The setting of parameters L0, L1, L2 and L3 ensures that each speaker can give a speech or talk at the most comfortable height and posture, thus improving the speaker's experience.

[0032] (3) The lower limit stabilizer and the upper limit stabilizer effectively prevent the hydraulic jack from shifting or loosening during operation, ensuring that the entire standing platform remains sturdy and stable under various load conditions.

[0033] (4) This solution has a simple structure, strong security, and can be applied to different meeting occasions. Attached Figure Description

[0034] Figure 1 A schematic diagram of the structure of an automatic speech adjustment device provided in this embodiment of the utility model. Figure 1 .

[0035] Figure 2 A schematic diagram of the structure of an automatic speech adjustment device provided in this embodiment of the utility model. Figure 2 .

[0036] Figure 3 This is a front structural diagram of the display panel in an automatic speech adjustment device provided in an embodiment of the present utility model.

[0037] Figure 4 This is a schematic diagram of the reverse side structure of the display panel in an automatic adjustment device for human speech provided in an embodiment of the present utility model.

[0038] Figure 5 This is a schematic diagram of the hydraulic components in an automatic adjustment device for personnel speaking, provided as an embodiment of the present utility model.

[0039] Figure 6 This is a schematic diagram of the structure of the first support system in an automatic adjustment device for human speech provided in an embodiment of the present utility model.

[0040] Figure 7This is a schematic diagram of the radar measurement mechanism in an automatic speech adjustment device provided in an embodiment of the present utility model.

[0041] Figure 8 A schematic diagram of the structure of an automatic speech adjustment device provided in this embodiment of the utility model. Figure 3 . Detailed Implementation

[0042] The following detailed description illustrates the specific implementation method:

[0043] The reference numerals in the accompanying drawings include: standing platform 1, base plate 110, standing plate 120, support column 130, top plate 140, display panel 2, PLC controller 210, remote control interface 220, hydraulic components 3, first support system 310, hydraulic jack 3101, support net 3102, upper limit stabilizer 3103, lower limit stabilizer 3104, second support system 320, pressure control solenoid valve 330, hydraulic pump 340, oil tank 350, radar measuring mechanism 4, radar controller 410, radar wave transmitter 420, radar wave receiver 430, radar transmitted wave 440, radar reflected wave 450, power supply 5, and microphone 6.

[0044] The implementation examples are basically as follows Figure 1 As shown: An automatic height adjustment device for personnel speaking includes a radar measuring mechanism 4 for measuring height and an automatic adjustment control mechanism for adjusting height. The radar measuring mechanism 4 is located on top of the automatic adjustment control mechanism.

[0045] like Figure 2 As shown, the automatic adjustment control mechanism includes a standing platform 1, a display panel 2, and a hydraulic assembly 3. The standing platform 1 comprises, from bottom to top, a base plate 110, a standing plate 120, a support column 130, and a top plate 140. The base plate 110 serves as the foundation of the entire standing platform 1, providing a stable support base. The support column 130 is located between the base plate 110 and the top plate 140 and is welded to both, forming a stable frame structure that ensures the stability and overall rigidity of the entire standing platform 1, preventing swaying or tilting during use. The standing plate 120 is located above the base plate 110, providing a safe and reliable standing surface for speakers. The height of its support plate is 2.5m-3m. Specifically, in this embodiment, the dimensions of the base plate 110 are 60cm*50*15cm (i.e., length*width*height), and the height of the support plate is 2.5m. This height range is suitable for the height requirements of most speakers, ensuring comfort and convenience during use.

[0046] The display panel 2 is located inside the support column 130, and it includes a PLC controller 210 and a remote control interface 220. For example... Figure 3 , Figure 4 As shown, the PLC controller 210 is used to remotely operate the radar measuring mechanism 4 to measure height and send control commands to drive the hydraulic components 3 to adjust the height of the standing platform 1. The PLC controller 210 stores preset parameters, including the height L0 of the standing platform 1 and the height L3 from the top of the speaker's head to their lips. In this embodiment, the remote control interface 220 is equipped with more than 20 buttons, specifically including "F (Confirm Enter), M (Store), - (Minus), + (Plus), 1 (Number), 2 (Number), 3 (Number), 4 (Number), 5 (Number), 6 (Number), 7 (Number), 8 (Number), 9 (Number), 0 (Number), . (Decimal point), C (Clear Input Data), > (Greater Than in Configuration), < (Less Than in Configuration), △ (Set Deviation), AC (Data Zero), A (Automatic Mode), S (Manual Mode), IF (Conditional Transfer), ↓ (Manual Ascent), ↑ (Manual Descendancy), TOP (Stop), ← (Left Shift), → (Right Shift)", to meet the operational needs of different scenarios. The PLC controller 210 has two adjustment modes: automatic and manual. In automatic mode, the remote control interface 220 can be used to remotely set the heights L3 and L1 (speaker's height). In manual mode, the remote control interface 220 can be used to manually adjust the heights L0 and L3. This allows for quick adjustment to a height suitable for individual needs, ensuring a more comfortable and efficient presentation. In this embodiment, the height L0 of the standing platform 1 is the distance between the upper surface of the standing board 120 and the lower surface of the base plate 110. The range of height L3 is 20cm-25cm, and the range of height L0 is 10cm-50cm. Specifically, in this embodiment, height L3 is 25cm. The range of the speaker's head to lips (L3) is set according to ergonomic data, covering the physiological characteristics of most adults and ensuring the device is suitable for speakers of different heights. The design of the height range (L0) of the standing platform 1 ensures that it can meet the needs of speakers of varying heights, enhancing the versatility and applicability of the device. The remote control interface 220 is equipped with various buttons.

[0047] The hydraulic assembly 3, located between the base plate 110 and the standing plate 120, is used to adjust the relative height between the speaker and the microphone 6. The positioning of the hydraulic assembly 3 allows for precise height adjustment and provides stable structural support, improving overall safety and reliability. Specifically, as... Figure 5As shown, the hydraulic assembly 3 includes a first support system 310, a second support system 320, a pressure-controlling solenoid valve 330, a hydraulic pump 340, and an oil tank 350. The right side of the first support system 310 is connected to the second support system 320 via the pressure-controlling solenoid valve 330. The hydraulic pump 340 and the oil tank 350 are installed on the right side of the second support system 320. The first support system 310 and the second support system 320 are connected together to the oil tank 350. In this embodiment, the first support system 310 and the second support system 320 work together to provide stronger support and higher stability, ensuring that the standing platform 1 can operate smoothly under various load conditions. Pressure control is achieved through the pressure-controlling solenoid valve 330, and the shared oil tank 350 serves as both the hydraulic oil source and return container, allowing the hydraulic oil to circulate efficiently between the two support systems, reducing oil demand and replacement frequency, and lowering operating costs and energy consumption.

[0048] The pressure-controlled solenoid valve 330 is used to control the pressure release of the hydraulic pump 340, ensuring that the pressure of the hydraulic pump 340 can be safely reduced when needed, preventing overload or equipment damage. Furthermore, it can quickly respond to emergencies and ensure the safety of the personnel. The hydraulic pump 340 is the core power source of the entire hydraulic assembly 3, responsible for delivering hydraulic oil from the oil tank 350 to various support systems to drive them to lift, lower, or perform other actions. The design of the hydraulic pump 340 not only improves work efficiency but also reduces energy consumption and operating costs. The oil tank 350 is a storage container for hydraulic oil, ensuring that the hydraulic assembly 3 has sufficient hydraulic oil for circulation. It also reduces the frequency of hydraulic oil replacement, further reducing maintenance costs. In this embodiment, the hydraulic pump 340 is a 24VDC or 220AC hydraulic pump. When automatic lifting is required, the hydraulic pump 340 starts and begins to work, delivering hydraulic oil to the hydraulic chamber, pushing the first support system 310 upwards to achieve the lifting purpose. The pressure control solenoid valve 330 is a 24VDC or 220AC solenoid valve. When it is necessary to automatically lower the height, the pressure control solenoid valve 330 opens to release the pressure in the hydraulic chamber. After the pressure is released, the first support system 310 moves down to achieve the purpose of lowering the height.

[0049] like Figure 6As shown, taking the first support system 310 as an example, the first support system 310 includes a longitudinally extendable hydraulic jack 3101, a longitudinally extendable support net 3102, an upper limit stabilizer 3103, and a lower limit stabilizer 3104. Specifically, the hydraulic jack 3101 is located between the base plate 110 and the top plate 140, and the support net 3102 is installed around the periphery of the hydraulic jack 3101. The support net 3102 is formed by connecting several diamond-shaped supports in sequence. The diamond-shaped supports are formed by connecting several support rods at their apexes by hinges. The longitudinal extension and retraction of the hydraulic jack 3101 and the support net 3102 allows the entire support system to adapt to different height space requirements; the coordinated adjustment of the hydraulic jack 3101 and the support net 3102 ensures the stability of height adjustment; the diamond-shaped supports are hinged at their apexes to form the support net 3102, giving the support net 3102 good rigidity and strength, effectively distributing the load, and ensuring the stability of the standing platform 1. The hydraulic jack 3101 is the core component of the entire hydraulic assembly 3. Through hydraulic transmission, it enables height adjustment of the support net 3102. Symmetrically mounted on both sides of the bottom of the hydraulic jack 3101 are lower limit stabilizers 3104, which are used to stably mount the hydraulic jack 3101 on the base plate 110, ensuring that it will not shift or loosen during operation, thus enhancing the stability of the hydraulic jack 3101. Symmetrically mounted on both sides of the top of the hydraulic jack 3101 are upper limit stabilizers 3103, which are used to stably mount the hydraulic jack 3101 on the top plate 140, ensuring that it will not shift or loosen during operation, further enhancing the stability of the hydraulic jack 3101.

[0050] The support net 3102 is formed by connecting several diamond-shaped brackets. Specifically, each diamond-shaped bracket consists of four support rods connected at its four vertices by hinges, thus possessing good rigidity and strength, effectively distributing the load, and ensuring the stability of the standing platform 1. The lower limit stabilizer 3104 includes a first baffle extending vertically downward and a second baffle extending obliquely downward from the upper end of the first baffle, with an inclination angle of 10-60 degrees between the first and second baffles. In this embodiment, the inclination angle between the first and second baffles is 45 degrees, which effectively prevents the hydraulic jack 3101 from shifting or loosening during operation, ensuring that it is always firmly fixed to the base plate 110.

[0051] The radar measurement mechanism 4 is mounted on the top plate 140, and includes a radar controller 410, a radar wave receiver 430, and a radar wave transmitter 420. For example... Figure 7As shown, the radar wave receiver 430 is located below the radar controller 410, and the radar wave transmitter 420 is located in the middle of the radar wave receiver 430. Specifically, in this embodiment, the radar measurement mechanism 4 used is a radar ultrasonic probe, model DHM-K20. When the speaker stands on the standing platform 120, the radar wave transmitter 420 emits radar waves 440 towards the top of the speaker and the microphone 6. These radar waves 440 are reflected after encountering the top of the speaker and the microphone 6, forming radar reflected waves 450. The reflected radar waves 450 are captured by the radar wave receiver 430, and the radar controller 410 is responsible for processing the received data to measure the height L1 from the top of the speaker's head to the upper surface of the standing platform 1 and the height L2 from the microphone 6 to the lower surface of the standing platform 1. The detection results are then fed back to the display panel 2. In this embodiment, the height L1 from the top of the speaker's head to the upper surface of the standing platform 1 is the same as the height from the top of the speaker's head to the upper surface of the standing board 120, and is also the speaker's height; the height L2 from the microphone 6 to the lower surface of the standing platform 1 is the same as the height of the microphone 6 to the ground.

[0052] In addition, a power supply 5 is installed on the side of the support column 130 away from personnel. The power supply 5 supplies power to the "radar measurement mechanism 4" and the "automatic height adjustment mechanism" and enables signal linkage between the two to ensure coordinated operation of measurement and adjustment.

[0053] The specific implementation process is as follows:

[0054] like Figure 8 As shown, power supply 5 is connected, and the speaker's on-stage program is started. Preset parameters are set in the PLC controller 210 based on the basic height data range of all speakers. In this embodiment, the initial preset height L0 of the standing platform 1 is 30cm, and the height L3 from the top of the speaker's head to their lips is 25cm.

[0055] In automatic mode: When the speaker stands on the standing platform 120, the radar wave transmitter 420 in the radar ultrasonic probe emits radar waves 440 towards the top of the speaker's head and the microphone 6. These radar waves 440 are reflected after encountering the top of the speaker's head and the microphone 6, forming radar reflection waves 450. The reflected radar reflection waves 450 are captured by the radar wave receiver 430. Then, the radar controller 410 processes the received data to measure the height L1 from the top of the speaker's head to the upper surface of the standing platform 120 and the height L2 from the microphone 6 to the lower surface of the base plate 110, and feeds the detection results back to the display panel 2.

[0056] When the display panel 2 receives data, it will compare the received data with preset parameters and make corresponding adjustments to adapt to the height positions of different speakers. Specifically, when L1 + L0 - L2 ≠ L3 and L1 + L0 - L2 > L3, the PLC controller 210 sends a control instruction △L = L3 - (L1 + L0 - L2) to control the hydraulic component 3 to reduce the pressure and lower the height L0 of the standing platform 1. When receiving the control instruction, the pressure control solenoid valve 330 opens to release the pressure in the hydraulic jack 3101. After the pressure is released, the hydraulic jack 3101 retracts downward, and at the same time, the support net 3102 gradually descends under the action of gravity, and the height of the standing plate 120 decreases until it reaches the required height position, thus achieving the reduction of height until the requirement of L1 + L0 - L2 = L3 is met.

[0057] When L1 + L0 - L2 ≠ L3 and L1 + L0 - L2 < L3, the PLC controller 210 sends a control instruction △L = L3 - (L1 + L0 - L2) to control the hydraulic component 3 to increase the pressure and raise the height L0 of the standing platform 1. When receiving the control instruction, the hydraulic pump 340 starts to work and pumps hydraulic oil from the oil sump 350 to the first support system 310 and the second support system 320. The hydraulic oil enters the hydraulic jacks 3101 of the first support system 310 and the second support system 320 through the pressure control solenoid valve 330 respectively. As the pressure in the hydraulic jacks 3101 increases, it pushes the hydraulic jacks 3101 to move upward, and at the same time, it带动 the diamond-shaped brackets in the support net 3102 to be longitudinally stretched, and together they lift the standing plate 120 until the requirement of L1 + L0 - L2 = L3 is met.

[0058] In the manual program: The operator can make manual adjustments through the remote control interface 220 according to the height provided by the speaker to ensure that the microphone 6 is at the most suitable height position for the speaker to use.

[0059] In summary, this solution, through the radar measuring mechanism 4, hydraulic components 3, and PLC controller 210, can automatically adjust the relative height between the speaker and the microphone 6 according to each speaker's height, achieving precise height matching and ensuring that everyone can use the microphone 6 in the most comfortable position. Furthermore, this solution, through precise control of the operation of the hydraulic pump 340 and pressure-controlling solenoid valve 330, and the layout of the lower limit stabilizer 3104 and upper limit stabilizer 3103, can achieve smooth and accurate height adjustment, ensuring safety and stability during use. The design of the hydraulic pump 340, pressure-controlling solenoid valve 330, and oil tank 350 optimizes energy consumption, reduces unnecessary energy loss, and improves overall efficiency. Simultaneously, through the setting of parameters L0, L1, L2, and L3, this solution ensures ease of operation while improving the reliability and flexibility of the device, ensuring that each speaker can deliver their speech or presentation at the most comfortable height and posture, enhancing the speaker's experience and improving the quality of the presentation.

[0060] Example 2:

[0061] The difference between this embodiment and embodiment one is that in this embodiment, the base plate 110 is provided with a groove for placing the hydraulic component 3.

[0062] Specifically, the hydraulic component 3 is located in the groove, making the structure of the entire standing platform 1 more compact and saving ground space.

[0063] In this embodiment, the groove has a rectangular structure, which can adapt to the distribution of the hydraulic components 3 and the shape design of the base plate 110. The hydraulic components 3 can be firmly embedded in the base plate 110, which reduces the shaking and displacement caused by external vibration or load changes during operation and enhances the stability of the device.

[0064] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An automatic adjustment device for speaker speech, used to adjust the relative height between the speaker and the microphone, characterized in that: It includes a radar measurement mechanism for measuring the heights of the speaker and the microphone, and an automatic adjustment control mechanism for height adjustment. The radar measurement mechanism is located on top of the automatic adjustment control mechanism and feeds back the detection results to the automatic adjustment control mechanism. The automatic adjustment control mechanism includes a standing platform, and a hydraulic component for controlling the lifting of the standing platform is provided at the bottom of the standing platform. The hydraulic component includes a first support system, and one side of the first support system is connected to a second support system through a pressure control solenoid valve. A hydraulic pump is provided on one side of the second support system. The pressure control solenoid valve controls the pressure of the hydraulic pump, thereby controlling the lifting of the first support system and the second support system, and further controlling the lifting of the standing platform.

2. The automatic adjustment device for personnel speaking according to claim 1, characterized in that: The first support system includes a hydraulically telescopic jackshaft, and a hydraulically telescopic support net is provided around the outside of the hydraulically telescopic jackshaft. The support net is formed by sequentially connecting a number of diamond-shaped brackets. The diamond-shaped brackets are formed by connecting a number of support rods by hinged means at their vertices.

3. The automatic adjustment device for personnel speaking according to claim 1, characterized in that: A display panel is provided on one side of the standing platform. The display panel is used to remotely control the radar measurement mechanism to measure the height and drive the hydraulic component to adjust the standing platform. The radar measurement mechanism is used to measure the height L1 from the top of the speaker's head to the upper surface of the standing platform and the height L2 from the microphone to the lower surface of the standing platform, and feeds back the detection results to the display panel.

4. The automatic adjustment device for personnel speaking according to claim 3, characterized in that: The display panel includes a PLC controller and a remote control interface. Preset parameters are stored in the PLC controller. The preset parameters include the height L0 of the standing platform and the height L3 from the top of the speaker's head to the lips. The remote control interface is used for remote control operations.

5. The automatic adjustment device for personnel speaking according to claim 4, characterized in that: When L1 + L0 - L2 ≠ L3 and L1 + L0 - L2 > L3, the PLC controller sends a control instruction △L = L3 - (L1 + L0 - L2) to control the hydraulic component to reduce pressure and lower the height L0 of the standing platform until the requirement of L1 + L0 - L2 = L3 is met, then the hydraulic component stops adjustment. When L1 + L0 - L2 ≠ L3 and L1 + L0 - L2 < L3, the PLC controller sends a control instruction △L = L3 - (L1 + L0 - L2) to control the hydraulic component to increase pressure and raise the height L0 of the standing platform until the requirement of L1 + L0 - L2 = L3 is met, then the hydraulic component stops adjustment.

6. The automatic adjustment device for personnel speaking according to claim 4, characterized in that: The range of the height L3 is 20 cm - 25 cm, and the range of the height L0 is 10 cm - 50 cm.

7. The automatic adjustment device for personnel speaking according to claim 1, characterized in that: The standing platform includes a bottom plate and a top plate, which are connected by support columns. A standing board is provided above the bottom plate. The hydraulic component is located between the standing board and the bottom plate to adjust the relative height between the speaker and the microphone.

8. The automatic adjustment device for personnel speaking according to claim 2, characterized in that: Upper limit stabilizers are symmetrically provided on both sides of the top of the hydraulically telescopic jackshaft, and lower limit stabilizers are symmetrically provided on both sides of the bottom of the hydraulically telescopic jackshaft. The lower limit stabilizer includes a first baffle extending vertically downward and a second baffle extending obliquely downward from the upper end of the first baffle.

9. The automatic adjustment device for personnel speaking according to claim 1, characterized in that: The hydraulic assembly also includes an oil tank, and the first support system and the second support system are connected to the oil tank together.

10. The automatic adjustment device for personnel speaking according to claim 1, characterized in that: The radar measurement mechanism includes a radar controller, a radar wave receiver for receiving radar reflected waves is provided below the radar controller, and a radar wave transmitter for transmitting radar transmitted waves is provided in the middle of the radar wave receiver.

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