A system for detecting the position of a translational motor to a flipping mechanism

Abstract

The utility model provides a kind of in-place detection system of translation motor to place turnover mechanism, including power module, control unit, translation motor, turnover motor and infrared detection unit;The infrared detection unit and the translation motor are connected with the control unit communication, the power module is electrically connected with the control unit, translation motor and the infrared detection unit, the infrared detection unit includes at least three groups of infrared sensors, three groups of the infrared sensor are spaced apart along the moving direction of the translation motor, the infrared sensor is connected with the control unit communication, the control unit is changed according to the state of each group of infrared sensor Control the working state of the translation motor. By infrared positioning translation motor in place, so that higher accuracy, service life is lengthened, while also reducing maintenance cost, power off and power on also can know the specific position before power off.

Description

Technical Field

[0001] This utility model relates to the field of vehicle-mounted flip display technology, and in particular to a positioning detection system for a translation motor-driven flip mechanism. Background Technology

[0002] As entertainment displays become increasingly common in commercial vehicles, flip mechanisms are also increasingly being adopted in the automotive field. When the flip mechanism moves the screen, it's necessary to detect whether the screen is in position before proceeding to the next flip. However, existing solutions use hard-switched detection, meaning they detect positioning via mechanical touch. This method has three drawbacks: firstly, its accuracy isn't particularly high; secondly, the number of mechanical touches is limited, and frequent touches affect lifespan and lead to more after-sales maintenance issues. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a positioning detection system for a translation motor positioning and flipping mechanism.

[0004] This utility model is implemented using the following method: a positioning detection system for a translation motor tilting mechanism, comprising a power module, a control unit, a translation motor, a tilting motor, and an infrared detection unit; the infrared detection unit and the translation motor are communicatively connected to the control unit, the power module is electrically connected to the control unit, the translation motor, and the infrared detection unit, the infrared detection unit includes at least three sets of infrared sensors, the three sets of infrared sensors are spaced apart along the moving direction of the translation motor, and all infrared sensors are communicatively connected to the control unit, the control unit controls the working state of the translation motor by changing the state of each set of infrared sensors.

[0005] Preferably, each group of infrared sensors includes an infrared emitting module and an infrared receiving module. The infrared emitting module and the infrared receiving module are respectively installed on both sides of the translation motor's moving path and are arranged opposite to each other. Both the infrared emitting module and the infrared receiving module are communicatively connected to the control unit.

[0006] Preferably, the infrared emitting module includes an infrared emitting diode D1, and the infrared receiving module includes an infrared receiving diode D2, wherein the infrared receiving diode D2 is connected to the control unit.

[0007] Preferably, the infrared emitting module further includes a resistor R1, one end of which is connected to the power supply module, and the other end is connected to the positive terminal of the infrared emitting diode D1, while the negative terminal of the infrared emitting diode D1 is grounded.

[0008] Preferably, the infrared receiving module further includes a resistor R2, one end of which is connected to the power supply module, and the other end is connected to the positive terminal of the infrared receiving diode D2, the negative terminal of which is grounded.

[0009] Preferably, the positive terminal of the infrared receiving diode D2 is connected to the control unit via resistor R3.

[0010] Preferably, the infrared detection unit further includes an infrared ranging module, which is opposite to the direction of movement of the translation motor and is used to detect the position of the translation motor; or, the infrared ranging module is mounted on the translation motor and faces the direction of movement of the translation motor, and the infrared ranging module is electrically connected to the control unit.

[0011] Preferably, the infrared ranging module includes an infrared emitting and photoelectric conversion module and a signal amplification and conditioning module; the infrared emitting and photoelectric conversion module includes an infrared emitting and receiving integrated element U3, the input side of which is connected to the power supply module to realize the conversion of infrared signal emission and signal reception after reflection from obstacles; the signal amplification and conditioning module includes an operational amplifier U2A, an operational amplifier U2B, and a potentiometer RP1, the output side of which is connected to the non-inverting input terminal of the operational amplifier U2A, the operational amplifier U2A is connected to the operational amplifier U2B and the potentiometer RP1, amplifying and conditioning the electrical signal converted by the infrared emitting and receiving integrated element U3 to realize distance detection, and the signal output terminal of the operational amplifier U2A is connected to the control unit.

[0012] Preferably, in the infrared emitting and photoelectric conversion module, the input side of the infrared emitting and receiving integrated element U3 is connected to the power supply module via resistor R16 to achieve infrared emitting. The output side of the infrared emitting and receiving integrated element U3 receives the reflected infrared signal and converts it into an electrical signal. The potentiometer RP1 is connected to the inverting input terminal of the operational amplifier U2A and the power supply module. The signal gain of the input operational amplifier U2A is adjusted by the potentiometer RP1. The non-inverting input terminal of the operational amplifier U2B is connected to the inverting input terminal of the operational amplifier U2A. The inverting input terminal of the operational amplifier U2B is connected to the signal output terminal. The eighth pin of the operational amplifier U2A is connected to the power supply module and grounded through capacitor C3.

[0013] Preferably, a resistor R14 and a light-emitting diode D3 are connected in series between the signal and power supply modules of the operational amplifier U2A.

[0014] Preferably, the control unit is also connected to a display module and a Hall sensor.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a positioning detection system for a translation motor positioning and flipping mechanism. Compared with the prior art, this utility model has at least the following technical effects: 1. By setting at least three sets of infrared sensors spaced apart along the movement direction of the translation motor, the control unit changes the control state of the translation motor according to the sensor status. Compared with hard positioning switches, infrared detection has higher accuracy, avoids mechanical wear of hard switches, extends service life, and reduces after-sales maintenance. 2. The infrared emitting module and infrared receiving module of each set of infrared sensors are set on both sides of the movement path of the translation motor and are opposite to each other, ensuring stable transmission and reception of infrared signals, accurately detecting whether the translation motor blocks the signal, providing an accurate basis for the control unit to determine the position, and improving the accuracy of position detection. 3. The addition of an infrared ranging module can detect the motor position from different installation methods (opposite to the translation direction or mounted on the motor facing the movement direction), supplementing the infrared sensor group detection, further improving the accuracy and comprehensiveness of position detection, providing more dimensional data for the control unit's decision-making, and adapting to the needs of complex vehicle scenarios. 4. The infrared transmitter and receiver integrated component U3 of the infrared ranging module integrates transmission and reception, simplifying the circuit; the operational amplifier and potentiometer work together to amplify and condition the converted electrical signal, accurately detect the distance, provide continuous distance data for the position determination of the translation motor, and combine with the discrete position detection of the infrared sensor group to make the control more precise. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the positioning detection system of a translation motor positioning and flipping mechanism according to this utility model.

[0017] Figure 2 This is a block diagram illustrating the detection principle of the infrared detection unit of this utility model.

[0018] Figure 3 This is the original circuit block diagram of the infrared sensor of this utility model.

[0019] Figure 4 This is a circuit block diagram of the infrared ranging module of this utility model.

[0020] The following are the reference numerals: 1. Power module; 2. Control unit; 3. Translation motor; 4. Tilting motor; 5. Infrared detection unit; 51. Infrared emitting tube; 52. Infrared receiving tube; 6. Display module; 7. Hall sensor. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] Please see Figures 1 to 4A positioning detection system for a translation motor 3's tilting mechanism includes a power module 1, a control unit 2, a translation motor 3, a tilting motor 4, and an infrared detection unit 5. The infrared detection unit 5 and the translation motor 3 are communicatively connected to the control unit 2. The power module 1 is electrically connected to the control unit 2, the translation motor 3, and the infrared detection unit 5. The infrared detection unit 5 includes at least three sets of infrared sensors, spaced apart along the movement direction of the translation motor 3. Each infrared sensor is communicatively connected to the control unit 2. The control unit 2 controls the operating state of the translation motor 3 by changing the state of each set of infrared sensors. By setting at least three sets of infrared sensors spaced apart along the movement direction of the translation motor 3, the control unit 2 changes the control state of the translation motor 3 according to the sensor states. Compared to a hard position switch, infrared detection offers higher accuracy, avoids mechanical wear of hard switches, extends service life, and reduces after-sales maintenance. Preferably, this embodiment uses three sets of infrared sensors, but four, five, six, etc., are also possible and not limited to this.

[0023] Please see Figures 1 to 4 Preferably, each set of infrared sensors includes an infrared emitting module and an infrared receiving module. The infrared emitting module and the infrared receiving module are respectively installed on both sides of the moving path of the translation motor 3 and are arranged opposite to each other. Both the infrared emitting module and the infrared receiving module are communicatively connected to the control unit 2. The infrared emitting module and the infrared receiving module of each set of infrared sensors are located on both sides of the moving path of the translation motor 3 and are arranged opposite to each other, which ensures stable transmission and reception of infrared signals, accurately detects whether the translation motor 3 blocks the signal, provides an accurate basis for the control unit 2 to determine the position, and improves the accuracy of position detection.

[0024] Please see Figures 1 to 4Preferably, the infrared emitting module includes an infrared emitting diode D1 (infrared emitting tube 51), and the infrared receiving module includes an infrared receiving diode D2 (infrared receiving tube 52), the infrared receiving diode D2 being connected to the control unit. When the translation motor moves between the infrared emitting tube and the infrared receiving tube of the first group of infrared sensors: if the infrared receiving tube does not receive an infrared signal of a specific frequency emitted by the infrared emitting tube, it indicates that the translation motor has reached the first position, and the moving speed of the translation motor is reduced to 50% of its original speed to avoid damaging the structure due to excessive speed. When the translation motor moves between the infrared emitting tube and the infrared receiving tube of the second group of infrared sensors: if the infrared receiving tube again does not receive an infrared signal of a specific frequency emitted by the infrared emitting tube, it indicates that the translation motor has reached the second position, and the moving speed of the translation motor is reduced to 25% of its original speed to avoid damaging the structure due to excessive speed. When the translation motor moves between the infrared emitting tube and the infrared receiving tube of the third group of infrared sensors: if its infrared receiving tube does not receive an infrared signal of a specific frequency emitted by the infrared emitting tube, the translation motor stops rotating, indicating that the translation motor has accurately reached the designated position, and the control unit is notified through the IO port. See Figure 3 When VCC is powered on, D1 transmits a specific frequency. If there is no obstruction, P2 outputs high; if there is an obstruction, P2 outputs low.

[0025] Please see Figures 1 to 4 Preferably, the infrared emitting module further includes a resistor R1, one end of which is connected to the power supply module, and the other end is connected to the positive terminal of the infrared emitting diode D1, while the negative terminal of the infrared emitting diode D1 is grounded. The resistor R1 provides current-limiting protection for the infrared emitting diode D1.

[0026] Please see Figures 1 to 4 Preferably, the infrared receiving module further includes a resistor R2, one end of which is connected to the power supply module and the other end is connected to the positive terminal of the infrared receiving diode D2. The grounding resistor R2 of the negative terminal of the infrared receiving diode D2 provides current limiting protection for the infrared receiving diode D2.

[0027] Please see Figures 1 to 4 Preferably, the positive terminal of the infrared receiving diode D2 is connected to the control unit via a resistor R3. Resistor R3 is connected between the infrared receiving diode D2 and the output port P2, serving a signal conditioning function.

[0028] Please see Figures 1 to 4Preferably, the infrared detection unit 5 further includes an infrared ranging module, which is opposite to the moving direction of the translation motor 3 and is used to detect the position of the translation motor 3; or, the infrared ranging module is installed on the translation motor 3 and faces the moving direction of the translation motor 3, and the infrared ranging module is electrically connected to the control unit 2. Adding an infrared ranging module allows for detection of the motor position from different installation methods (opposite to the translation direction or mounted on the motor facing the moving direction). The infrared ranging module continuously positions the translation motor 3, resulting in higher accuracy, longer service life, and reduced maintenance costs. It also allows for knowing the exact position before power failure even after power is turned off and on again. Preferably, in this embodiment, the module is installed opposite to the translation motor 3.

[0029] Please see Figures 1 to 4 Preferably, the infrared ranging module includes an infrared emission and photoelectric conversion module and a signal amplification and conditioning module. The infrared emission and photoelectric conversion module includes an integrated infrared emission and reception element U3. The input side of the integrated infrared emission and reception element U3 is connected to the power supply module 1 to realize the conversion between infrared signal emission and signal reception after reflection from obstacles. The signal amplification and conditioning module includes operational amplifiers U2A and U2B and a potentiometer RP1. The output side of the integrated infrared emission and reception element U3 is connected to the non-inverting input terminal of the operational amplifier U2A. The operational amplifier U2A is connected to the operational amplifier U2B and the potentiometer RP1 to amplify and condition the electrical signal converted by the integrated infrared emission and reception element U3 to achieve distance detection. The signal output terminal of the operational amplifier U2A is connected to the control unit 2. The integrated infrared emission and reception element U3 of the infrared ranging module integrates emission and reception. The operational amplifiers U2A and U2B cooperate with the potentiometer RP1 to achieve precise amplification and gain adjustment of the ranging signal, ensuring that the control unit 2 obtains accurate distance data and improving ranging accuracy.

[0030] Please see Figures 1 to 4Preferably, in the infrared emitting and photoelectric conversion module, the input side of the infrared emitting and receiving integrated element U3 is connected to the power supply module 1 via resistor R16 to achieve infrared emitting. The output side of the infrared emitting and receiving integrated element U3 receives the reflected infrared signal and converts it into an electrical signal. The potentiometer RP1 is connected to the inverting input terminal of the operational amplifier U2A and the power supply module 1. The signal gain of the input operational amplifier U2A is adjusted by the potentiometer RP1. The non-inverting input terminal of the operational amplifier U2B is connected to the inverting input terminal of the operational amplifier U2A. The inverting input terminal of the operational amplifier U2B is connected to the signal output terminal. The eighth pin of the operational amplifier U2A is connected to the power supply module 1 and grounded through capacitor C3. Resistor R16 provides a stable operating current for the infrared emitting and receiving integrated element U3 to ensure stable infrared emitting power. Potentiometer RP1 enables manual adjustment of the signal gain to adapt to obstacles with different reflectivities (such as metal and plastic). Capacitor C3 provides power filtering for the operational amplifier U2A to reduce power supply noise interference to signal processing.

[0031] Please see Figures 1 to 4 Preferably, a resistor R14 and a light-emitting diode D3 are connected in series between the signal of the operational amplifier U2A and the power supply module 1. The light-emitting diode D3 is used to indicate the working status of the infrared ranging module (e.g., it lights up when ranging), and the resistor R14 serves as a current limiting protection to prevent overcurrent damage to the light-emitting diode D3. At the same time, it enhances the visualization of the module's working status, facilitating system debugging and maintenance.

[0032] Please see Figures 1 to 4 Preferably, the control unit 2 is also connected to a display module 6 and a Hall sensor 7. The control unit 2 can output video signals to the display module 6 for playing a video display of precautions for riding in the vehicle. The Hall sensor 7 is used to detect the positioning of the tilting motor 4. Both the Hall sensor 7 and the display module 6 are existing technologies and will not be described in detail or have specific protection requirements.

[0033] The working principle of this utility model is as follows:

[0034] Power module 1 supplies power to control unit 2, translation motor 3, infrared detection unit 5, and infrared ranging module (if any). After translation motor 3 starts moving, at least three sets of infrared sensors in infrared detection unit 5 are arranged at intervals along the direction of movement, continuously emitting and receiving infrared signals. When translation motor 3 moves and blocks the infrared signal of a certain set of infrared sensors, the state of that set of sensors changes. After receiving the signal, control unit 2 controls the working state of translation motor 3 according to preset logic based on which set of sensors triggered it (e.g., the speed is reduced to 50% when the first set is triggered, the speed is reduced to 25% when the second set is triggered, and the speed is stopped when the third set is triggered). If an infrared ranging module is equipped, the infrared transmitting and receiving integrated element U3 of its infrared transmitting and photoelectric conversion module emits infrared signals. After being reflected, the infrared transmitting and receiving integrated element U3 receives and converts the signals into electrical signals. These signals are then amplified and conditioned by operational amplifiers U2A and U2B and potentiometer RP1, and the distance signal is transmitted to control unit 2. The control unit 2 combines the discrete position signals of the infrared sensor group with the continuous distance signals of the ranging module to comprehensively determine the position of the translation motor 3, thereby accurately controlling the translation motor 3 to achieve orderly connection between the arrival detection and subsequent flipping action. Moreover, after power failure and power restoration, the infrared ranging module continuously monitors the position of the translation motor 3, which can identify the position before power failure and ensure stable operation of the system.

[0035] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0036] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0037] Finally, the above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.

[0038] It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this utility model should also be considered within the scope of protection of this utility model.

Claims

1. A positioning detection system for a translation motor-driven tilting mechanism, comprising a power module, a control unit, a translation motor, a tilting motor, and an infrared detection unit; wherein the infrared detection unit and the translation motor are communicatively connected to the control unit, and the power module is electrically connected to the control unit, the translation motor, and the infrared detection unit, characterized in that: The infrared detection unit includes at least three sets of infrared sensors, which are spaced apart along the moving direction of the translation motor. Each infrared sensor is communicatively connected to the control unit, and the control unit controls the working state of the translation motor by changing the state of each set of infrared sensors.

2. The positioning detection system for a translation motor positioning and flipping mechanism according to claim 1, characterized in that: Each set of infrared sensors includes an infrared emitting module and an infrared receiving module. The infrared emitting module and the infrared receiving module are respectively installed on both sides of the translation motor's moving path and are arranged opposite to each other. Both the infrared emitting module and the infrared receiving module are communicatively connected to the control unit.

3. The positioning detection system for a translation motor positioning and flipping mechanism according to claim 2, characterized in that: The infrared emitting module includes an infrared emitting diode D1, and the infrared receiving module includes an infrared receiving diode D2, which is connected to the control unit.

4. The positioning detection system for a translation motor positioning and flipping mechanism according to claim 3, characterized in that: The infrared emitting module also includes a resistor R1, one end of which is connected to the power supply module, and the other end is connected to the positive terminal of the infrared emitting diode D1. The negative terminal of the infrared emitting diode D1 is grounded.

5. The positioning detection system for a translation motor positioning and flipping mechanism according to claim 4, characterized in that: The infrared receiving module also includes a resistor R2, one end of which is connected to the power supply module, and the other end is connected to the positive terminal of the infrared receiving diode D2, and the negative terminal of the infrared receiving diode D2 is grounded.

6. The positioning detection system for a translation motor positioning and flipping mechanism according to claim 5, characterized in that: The positive terminal of the infrared receiving diode D2 is connected to the control unit via resistor R3.

7. The positioning detection system for a translation motor positioning and flipping mechanism according to claim 1, characterized in that: The infrared detection unit further includes an infrared ranging module, which is opposite to the direction of movement of the translation motor and is used to detect the position of the translation motor; or, the infrared ranging module is mounted on the translation motor and faces the direction of movement of the translation motor, and the infrared ranging module is electrically connected to the control unit.

8. The positioning detection system for a translation motor positioning and flipping mechanism according to claim 7, characterized in that: The infrared ranging module includes an infrared emission and photoelectric conversion module and a signal amplification and conditioning module. The infrared emission and photoelectric conversion module includes an integrated infrared emission and reception element U3. The input side of the integrated infrared emission and reception element U3 is connected to the power supply module to realize the conversion between infrared signal emission and signal reception after reflection from obstacles. The signal amplification and conditioning module includes an operational amplifier U2A, an operational amplifier U2B, and a potentiometer RP1. The output side of the integrated infrared emission and reception element U3 is connected to the non-inverting input terminal of the operational amplifier U2A. The operational amplifier U2A is connected to the operational amplifier U2B and the potentiometer RP1 to amplify and condition the electrical signal converted by the integrated infrared emission and reception element U3 to realize distance detection. The signal output terminal of the operational amplifier U2A is connected to the control unit.

9. The positioning detection system for a translation motor positioning and flipping mechanism according to claim 8, characterized in that: In the infrared emitting and photoelectric conversion module, the input side of the infrared emitting and receiving integrated element U3 is connected to the power module via resistor R16 to achieve infrared emitting. The output side of the infrared emitting and receiving integrated element U3 receives the reflected infrared signal and converts it into an electrical signal. The potentiometer RP1 is connected to the inverting input terminal of the operational amplifier U2A and the power module. The signal gain of the input operational amplifier U2A is adjusted by the potentiometer RP1. The non-inverting input terminal of the operational amplifier U2B is connected to the inverting input terminal of the operational amplifier U2A. The inverting input terminal of the operational amplifier U2B is connected to the signal output terminal. The eighth pin of the operational amplifier U2A is connected to the power module and grounded through capacitor C3. A resistor R14 and a light-emitting diode D3 are connected in series between the signal of the operational amplifier U2A and the power module.

10. The positioning detection system for a translation motor positioning and flipping mechanism according to claim 1, characterized in that: The control unit is also connected to a display module and a Hall sensor.

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