Safety seat electric control method and device and safety seat

Abstract

The invention provides an electric control method and device for a safety seat and the safety seat, and relates to the technical field of safety seats, in electric units of the safety seat, a first electric unit is used for driving a seat body to do one of rotary motion and translation motion relative to a base, and a second electric unit is used for driving the seat body to do other one of rotary motion and translation motion relative to the base; the second electric unit is used for driving the seat body to do the other one of the rotary motion and the translational motion relative to the base; the method comprises the steps of controlling the first electric unit to act; judging whether a first feedback signal corresponding to the first electric unit is received or not, wherein the first feedback signal corresponding to the first electric unit is an in-place feedback signal when the first electric unit reaches a preset position and / or a resistance-encountering feedback signal when the first electric unit encounters resistance; if yes, the state of the first electric unit is judged; if the first electric unit is in the in-place movement state, it is judged that the first target action is completed. The position of the seat can be flexibly adjusted in different dimensions, and diversified use requirements of users are met.

Description

Technical Field

[0001] The present invention relates to the technical field of safety seats, and in particular to a safety seat electric control method, a safety seat electric control device and a safety seat. Background Art

[0002] With the development of intelligent cockpit technology, the functions and modes of modern car seats are becoming more and more diverse, including functions such as door opening and swinging out to welcome guests, which significantly improves the comfort and convenience of adult passengers. However, the comfort and convenience of child passengers are also worthy of attention, especially in the design and use of child safety seats.

[0003] In actual use, the installation and use of safety seats face some challenges. For example, the space in the car is limited when the child seat is installed, and the riding space is fixed after the safety seat is installed, so the child's leg space is limited. In the case of limited space in the car, how to better meet the comfort and safety needs of children is still a technical problem that needs to be solved urgently. Summary of the invention

[0004] The problem solved by the invention is how to improve the riding comfort of the safety seat.

[0005] In order to solve the above problems, the present invention provides an electric control method for a safety seat, wherein the safety seat comprises a seat body, a base and an electric unit, wherein the electric unit comprises a first electric unit and a second electric unit, wherein the first electric unit is used to drive the seat body to perform one of a rotational motion and a translational motion relative to the base, and the second electric unit is used to drive the seat body to perform the other of a rotational motion and a translational motion relative to the base; the electric control method for the safety seat comprises:

[0006] Controlling the action of the first electric unit;

[0007] Determine whether a first feedback signal corresponding to the first electric unit is received, where the first feedback signal corresponding to the first electric unit is a feedback signal indicating that the first electric unit has reached a preset position and / or an obstruction feedback signal when the first electric unit encounters an obstruction;

[0008] If yes, determine the state of the first electric unit;

[0009] If the first electric unit is in the moved-to-position state, it is determined that the first target action is completed.

[0010] Optionally, in the rotation-out mode, if the first electric unit is in the moved-in position state, after determining that the first target action is completed, the method further includes:

[0011] Control the action of the second electric unit;

[0012] Determine whether a first feedback signal corresponding to the second electric unit is received, where the first feedback signal corresponding to the second electric unit is a feedback signal indicating that the second electric unit has reached a preset position and / or an obstruction feedback signal when the second electric unit encounters an obstruction;

[0013] If yes, determine the state of the second electric unit;

[0014] If the second electric unit is in the moved-to-position state, it is determined that the second target action is completed.

[0015] Optionally, in the reverse translation mode, the first electric unit is used to drive the seat body to perform translational movement relative to the base, and the safety seat electric control method further includes:

[0016] Determine whether the first electric unit reaches a set position, where the set position is a user-set position or is determined according to passenger information, and the preset position is a preset fixed position;

[0017] If so, it is determined that the first target action is completed.

[0018] Optionally, the safety seat electric control method further includes:

[0019] In the reverse translation mode, determining whether the seat body is in a reverse installation state;

[0020] If yes, the step of controlling the action of the first electric unit is executed;

[0021] If not, a reverse installation prompt is output, or the second electric unit is controlled to drive the seat body into a reverse installation state, and then the step of controlling the first electric unit to move is executed.

[0022] Optionally, determining the state of the electric unit specifically includes:

[0023] Obtaining a second feedback signal corresponding to the electric unit;

[0024] When the first feedback signal is a reach-in-position feedback signal, the second feedback signal is a motion feedback signal of the electric unit, and whether the electric unit encounters resistance is determined according to the motion feedback signal. If so, it is determined that the electric unit is in a reach-in-position state;

[0025] When the first feedback signal is an obstruction feedback signal, the second feedback signal is a position feedback signal of the electric unit. It is determined whether the electric unit has reached the preset position according to the position feedback signal. If so, it is determined that the electric unit is in a moving position.

[0026] Optionally, the motion feedback signal includes a current feedback signal and / or a rotation speed feedback signal of the electric unit.

[0027] Optionally, the position feedback signal is measured by a first sensor disposed on the electric unit or by a second sensor disposed on the electric motion path of the seat body.

[0028] Optionally, the safety seat electric control method further includes:

[0029] Get the shoulder height information of the passenger in the safety seat;

[0030] Determine whether to enter the reverse translation mode according to the shoulder height information, wherein when the shoulder height information is less than a preset value, determine to enter the reverse translation mode; and / or determine the set position according to the shoulder height information.

[0031] The present invention also provides a safety seat electric control device, comprising a computer-readable storage medium storing a computer program and a processor. When the computer program is read and executed by the processor, the safety seat electric control method as described above is implemented.

[0032] The present invention also provides a safety seat, comprising the safety seat electric control device as described above.

[0033] Compared with the prior art, the present invention has at least the following beneficial effects:

[0034] The first electric unit and the second electric unit are responsible for the rotation and translation of the seat body respectively, so that the seat can flexibly adjust its position in different dimensions to meet the diverse needs of users; by setting the corresponding electric control logic, including the action control logic and feedback signal processing logic of the electric unit, the accurate and safe rotation and translation control of the seat body is realized. Specifically, the embodiment of the present invention controls the first electric unit to start the action (such as rotation or translation), and determines whether the first feedback signal corresponding to the first electric unit is received in this process. The feedback signal here includes the in-place feedback signal and the encountering resistance feedback signal. The former indicates that the electric unit has reached the preset position, and the latter indicates that the electric unit has encountered an obstacle or resistance during the movement. After receiving the first feedback signal, the actual state of the first electric unit is further analyzed and determined. If the first electric unit is determined to be in the in-place state, then it can be confirmed that the first target action has been completed. This process not only ensures that the seat body can accurately reach the preset position expected by the user, but also avoids misjudgment through the detection of the encountering resistance feedback signal, thereby ensuring the safety of passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a flow chart of an embodiment of a method for electrically controlling a safety seat of the present invention;

[0036] Figure 2 This is a schematic diagram of the seat body moving leftward in an embodiment of the present invention;

[0037] Figure 3 This is a schematic diagram of the rearward movement of the seat body in an embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of a flow chart of an embodiment of a rotation and translation mode in an embodiment of the present invention;

[0039] Figure 5 It is a schematic diagram of a flow chart of a reverse translation mode 1 embodiment of the present invention;

[0040] Figure 6 Schematic diagram of an electric control system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not used to limit the scope of protection of the present invention. The term "including" and its variations used herein are open inclusions, that is, "including but not limited to"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description.

[0042] The embodiment of the present invention discloses an electric control method for a safety seat, which is applied to a safety seat (also called a child seat), which includes a seat body, a base and an electric unit, wherein the seat body is a seat for the child, and the base is responsible for fixing the seat body inside the car, which is usually provided with an ISOFIX interface or other forms of fixing devices to ensure that the safety seat can be firmly kept in place during a collision.

[0043] The electric unit includes a first electric unit and a second electric unit, the first electric unit is used to drive the seat body to perform one of a rotational motion and a translational motion relative to the base, and the second electric unit is used to drive the seat body to perform the other of a rotational motion and a translational motion relative to the base. The first electric unit and the second electric unit can be installed on the backrest or the base of the child safety seat, which is not limited in this article.

[0044] In one embodiment, the first electric unit includes a rotary motion drive motor, which is mounted on the base and drives the seat body to rotate around a fixed axis through gears or other means, so that the seat body can be turned from facing forward to facing the door, making it easier for parents to put their children on the seat or take them out of the seat. The second electric unit includes a translational motion drive motor, which can also be mounted on the base and drives the seat body to move in a direction perpendicular to the rotation axis of the seat body (for example, Figure 2Schematic diagram for left shift, Figure 3 ) such as forward, backward, left, and backward, so that the position of the seat can be adjusted to make it closer to or farther away from the door, making it easier for children to get in and out.

[0045] In another embodiment, the first electric unit includes a translational motion drive motor, and the second electric unit includes a rotational motion drive motor. The related functions are as described above and will not be repeated here.

[0046] In one embodiment, if Figure 1 The electric control method of the safety seat of the present invention comprises:

[0047] Step S10, controlling the first electric unit to operate.

[0048] The first electric unit is actuated to drive the seat body to perform rotational motion or translational motion.

[0049] Step S20, determining whether a first feedback signal corresponding to the first electric unit is received, wherein the first feedback signal corresponding to the first electric unit is a feedback signal indicating that the first electric unit reaches a preset position and / or an obstruction feedback signal indicating that the first electric unit encounters an obstruction.

[0050] Step S20 may be executed while step S10 is being executed. It may be determined in real time whether the first feedback signal corresponding to the first electric unit is received, or a timer may be set to determine whether the first feedback signal is received at a fixed time. If the first feedback signal is not received within a certain period of time, a fault prompt is output and the first electric unit is controlled to stop operating.

[0051] The in-position feedback signal refers to the in-position feedback signal when the first electric unit reaches the preset position, which can be measured by a first sensor arranged on the first electric unit or by a second sensor arranged on the electric motion path of the seat body.

[0052] The first sensor includes but is not limited to at least one of a grating, a coding disk or a Hall sensor.

[0053] The grating and the encoder disk can be installed on the motor shaft of the first electric unit or the actuator drive shaft to determine the number of rotations of the first electric unit. The following explanation is given using the grating as an example. In one embodiment, the first sensor is a grating, and a fixed grating scale can be installed at a position relative to the motor shaft, such as a motor housing, and then the grating reader is installed on the motor shaft of the first electric unit or the actuator drive shaft. It rotates with the rotation of the shaft. The reader contains a light source and a photosensitive element for reading the engraved lines on the grating scale. When the motor shaft or the actuator drive shaft rotates, the reader installed thereon emits light and receives light reflected from the grating scale. It detects position changes based on the reflected light, converts the detected light signal into an electrical signal, and then calculates the number of revolutions of the motor shaft or the drive shaft based on the electrical signal, thereby realizing position detection. This embodiment is only an optional embodiment of the grating scheme, and can be adjusted during specific implementation.

[0054] In another embodiment, the first sensor is a Hall sensor. The Hall sensor is installed in the motor housing near the permanent magnet on the motor rotor. When the motor rotor rotates, the permanent magnet on it passes the position of the Hall sensor. Whenever the magnet approaches the Hall sensor, the magnetic field generated by it causes the potential difference in the Hall sensor to change, thereby forming an electrical signal. The number of motor revolutions is determined based on the electrical signal, thereby realizing position detection.

[0055] The second sensor includes but is not limited to at least one of a micro switch, a photoelectric switch or a reed switch.

[0056] In one embodiment, the second sensor is a micro switch. One or more key positions on the electric motion path of the seat body are selected, and the micro switch is installed on the mechanical frame of the one or more key positions to ensure that the contact of the micro switch can contact a certain part on the seat body, so that when the first electric unit reaches a preset position, that is, drives the seat body to a certain position, it touches the contact of the micro switch, causing it to close or open, thereby generating an in-position feedback signal.

[0057] In one embodiment, the second sensor is a photoelectric switch. One or more key positions on the electric motion path of the seat body are selected, and the photoelectric switch is installed on the mechanical frame of the one or more key positions. The photoelectric switch includes a transmitting end and a receiving end. When the first electric unit reaches the preset position, the seat body moves to a certain position, which blocks the light of the photoelectric switch, resulting in the receiving end failing to detect the light.

[0058] In one embodiment, the second sensor is a reed switch. One or more key positions on the electric motion path of the seat body are selected, and the reed switch is fixedly installed at the one or more key positions. A magnet can be installed at one or more positions of the seat body. When the first electric unit reaches the preset position, the seat body moves to a certain position, and the magnet approaches the reed switch, causing its contacts to close or open, thereby generating a signal to determine whether the first electric unit has reached the preset position.

[0059] In other embodiments, one or more of the above sensors may be selected for use in combination according to specific circumstances to improve the reliability and accuracy of detection. For example, a micro switch and a photoelectric switch, or a photoelectric switch and a reed switch may be combined to implement a multiple detection mechanism to ensure that the position detection of the first electric unit / seat body is more accurate and reliable.

[0060] The resistance feedback signal of the first electric unit refers to the feedback signal sent when the first electric unit encounters an obstacle or resistance. The resistance feedback signal can be a current feedback signal when the actuator (such as a motor) of the first electric unit encounters resistance or stalls and / or a speed feedback signal of the actuator (such as a motor) of the first electric unit. When encountering resistance or stalling, the current increases, and the speed decreases or even becomes 0.

[0061] The received first feedback signal may be a position feedback signal, an obstruction feedback signal, or both, depending on the actual working state of the first electric unit of the safety seat. As long as one of them is received, it can be determined that the first feedback signal is received. If neither the position feedback signal nor the obstruction feedback signal is received, it is determined that the first feedback signal is not received.

[0062] Step S30: If yes, determine the state of the first electric unit.

[0063] If the first feedback signal is received, the actual state of the first electric unit is determined. The state of the first electric unit includes a moving state and a fault state. If the actual state of the first electric unit is a fault state, a fault prompt is output or other measures are taken, such as uploading a fault log, remotely notifying a fault maintenance personnel, etc.

[0064] Optionally, determining the state of the first electric unit in step S30 specifically includes:

[0065] Step S31, obtaining a second feedback signal corresponding to the electric unit, wherein when the first feedback signal is an in-position feedback signal, the second feedback signal is a motion feedback signal of the electric unit; when the first feedback signal is an obstruction feedback signal, the second feedback signal is a position feedback signal of the electric unit.

[0066] The motion feedback signal is information that reflects the actual operating status of the electric unit, and may include the current feedback signal and speed feedback signal of the electric unit. Among them, the current feedback signal reflects the actual current value in the motor winding or its current change. Through the current feedback signal, we can understand the change of the motor load and whether the motor is working as expected. For example, when the electric unit encounters resistance, its current will increase. The speed feedback signal reflects the actual rotation speed of the electric unit motor. When the electric unit encounters resistance, the speed decreases or even becomes 0.

[0067] The position feedback signal refers to information reflecting the position of the seat body. Optionally, the position feedback signal is measured by a first sensor disposed on the electric unit or by a second sensor disposed on the electric motion path of the seat body.

[0068] Among them, the first sensor includes but is not limited to at least one of a grating, a code disk or a Hall sensor. The second sensor includes but is not limited to at least one of a micro switch, a photoelectric switch or a reed switch. The examples of the installation positions of the first sensor and the second sensor can be referred to as described above and will not be repeated here. In other embodiments, one or more of the above sensors can be selected for use in combination according to specific circumstances to improve the reliability and accuracy of detection. For example, a micro switch and a photoelectric switch, or a photoelectric switch and a reed switch, can be combined to implement a multiple detection mechanism to ensure that the position detection of the first electric unit / seat body is more accurate and reliable.

[0069] Step S32, when the first feedback signal is an in-position feedback signal, the second feedback signal is a motion feedback signal of the electric unit, and whether the electric unit encounters resistance is determined according to the motion feedback signal. If so, the electric unit is determined to be in the in-position state; if not, the electric unit is determined to be in a fault state.

[0070] Receiving the in-position feedback signal indicates that the electric unit may have reached the preset position. At this time, if the current or speed signal also indicates that the electric unit has encountered resistance, it can be determined that the electric unit has reached the preset position and stopped moving further. In this case, the electric unit is considered to be in the in-position state. If the current or speed signal indicates that the electric unit has not encountered resistance, it means that there is a fault in the system, such as a false alarm fault in the first sensor provided on the first electric unit or the second sensor provided on the electric motion path of the seat body. This double verification mechanism reduces the possibility of misjudgment and improves the accuracy of the electric unit status judgment.

[0071] Step S33, when the first feedback signal is an obstruction feedback signal, the second feedback signal is a position feedback signal of the electric unit, and whether the electric unit has reached the preset position is determined according to the position feedback signal. If so, it is determined that the electric unit is in a moving state; if not, it is determined that the electric unit is in a fault state.

[0072] Receiving an resistance feedback signal indicates that the electric unit may encounter resistance, causing its current to increase or its speed to decrease. At this time, the position feedback signal is used to determine whether the electric unit has reached the preset position. If so, it means that the electric unit has reached the preset position and stopped moving further, and the electric unit is determined to be in the moved-in position state. Otherwise, the electric unit is determined to be in a fault state, such as clamping the passenger's legs during movement.

[0073] By adopting a multi-level feedback signal judgment mechanism, the status of the electric unit can be accurately judged, potential problems can be detected in time, and corresponding measures can be taken for troubleshooting or alarm, thereby preventing erroneous operations caused by false alarms and significantly improving the reliability and accuracy of the system.

[0074] In one embodiment, after receiving the first feedback signal corresponding to the first electric unit, the output of the motion control signal of the first electric unit is stopped or the control signal for controlling the first electric unit to stop moving is output, so that the first electric unit stops moving. Therefore, if the passenger's legs are clamped during movement, timely stopping can ensure the safety of the passenger.

[0075] Step S40: If the first electric unit is in the moved-to-position state, it is determined that the first target action is completed.

[0076] In one embodiment, the first electric unit includes a rotational motion drive motor, and the first target action refers to driving the seat body to rotate relative to the base by a preset angle, such as 0°, 90°, 180°, 270°, etc. The optional range of the preset angle can be a system default setting, and the user can select a preset angle in a seat motion control. In another embodiment, the first electric unit includes a translational motion drive motor, and the first target action refers to driving the seat body to translate relative to the base by a preset distance.

[0077] In the embodiment of the present invention, the first electric unit and the second electric unit are respectively responsible for the rotation and translation of the seat body, so that the seat can flexibly adjust the position in different dimensions to meet the diverse usage needs of users; by setting the corresponding electric control logic, including the action control logic and feedback signal processing logic of the electric unit, the accurate and safe rotation and translation control of the seat body is realized. Specifically, the embodiment of the present invention controls the first electric unit to start the action (such as rotation or translation), and determines whether the first feedback signal corresponding to the first electric unit is received in this process (step S20). The feedback signal here includes the in-place feedback signal and the encountering resistance feedback signal. The former indicates that the electric unit has reached the preset position, and the latter indicates that the electric unit has encountered an obstacle or resistance during the movement. After receiving the first feedback signal, the actual state of the first electric unit is further analyzed and determined (step S30). If the first electric unit is determined to be in the in-place state, then it can be confirmed that the first target action has been completed (step S40). This process not only ensures that the seat body can accurately reach the preset position expected by the user, but also avoids misjudgment through the detection of the encountering resistance feedback signal, thereby ensuring the safety of passengers. In addition, by distinguishing the functional areas of the first electric unit and the second electric unit, the present invention also provides a more efficient seat space management and usage experience. For example, when the direction of the seat needs to be adjusted, only the electric unit responsible for rotation needs to be activated; and when the front and rear position of the seat needs to be changed, the electric unit responsible for translation is started. This method can avoid unnecessary power consumption, simplify the control logic, and improve the response speed of the system.

[0078] Optionally, in the rotation-out mode, after step S40, the method further includes:

[0079] Step S50, controlling the second electric unit to operate.

[0080] In one embodiment, the first electric unit is used to drive the seat body to rotate relative to the base, and the second electric unit is used to drive the seat body to translate relative to the base. In another embodiment, the first electric unit is used to drive the seat body to translate relative to the base, and the second electric unit is used to drive the seat body to rotate relative to the base.

[0081] In the rotation-out mode, the first electric unit and the second electric unit cooperate to drive the seat body to rotate relative to the base and then translate, or translate first and then rotate. After executing step S40 and completing the first target action, the second electric unit is controlled to continue to move.

[0082] Step S60, determining whether a first feedback signal corresponding to the second electric unit is received, the first feedback signal corresponding to the second electric unit being a feedback signal indicating that the second electric unit has reached a preset position and / or an obstruction feedback signal indicating that the second electric unit encounters an obstruction.

[0083] Step S70: If yes, determine the state of the second electric unit.

[0084] Step S80: If the second electric unit is in the moved-to-position state, it is determined that the second target action is completed.

[0085] The explanation of steps S60-S80 refers to steps S20-S40. Except that the first electric unit and the second electric unit have different functions, the related concepts and logics are basically the same, and thus are not repeated here.

[0086] To make it easier to understand, here is an example:

[0087] like Figure 4 In the rotation-out mode, after the electric control system receives the user's input command, the first electric unit is activated and it is determined whether the first feedback signal is received. When the first feedback signal arrives, it is further determined whether the first electric unit is in a fault state such as encountering an obstruction or a state of movement to the designated position according to the second feedback signal. If it is in a fault state, an alarm or fault processing is performed. If it is in the state of movement to the designated position, the second electric unit is activated and it is determined that the corresponding first feedback signal of the second electric unit has arrived. When the first feedback signal arrives, it is further determined whether the second electric unit is in a fault state such as encountering an obstruction or a state of movement to the designated position according to the second feedback signal. If it is in a fault state, an alarm or fault processing is performed. If it is in the state of movement to the designated position, the rotation-out function is completed.

[0088] Optionally, in the reverse translation mode, the first electric unit is used to drive the seat body to perform translational movement relative to the base, referring to Figure 5 , while executing steps S10-S40, also execute the following steps:

[0089] It is determined whether the first electric unit reaches a set position, where the set position is a user-set position or is determined based on passenger information, and the preset position is a preset fixed position.

[0090] If so, it is determined that the first target action is completed and the current process ends; if not, it continues to determine whether the first electric unit reaches the set position.

[0091] That is, in this embodiment, there are two completion criteria for the first target action, one is to determine that the first electric unit has reached the user-set position or the set position determined according to the passenger information, and the other is to determine that the first electric unit is in the state of movement after receiving the first feedback signal corresponding to the first electric unit. As long as any one of them is met, the first target action can be determined to be completed. If the first electric unit reaches the set position, it can be determined that the first target action is completed because the seat body has been translated to the specific position required by the user. If the first feedback signal corresponding to the first electric unit is received and it is determined that the first electric unit is in the state of movement, it means that the seat body has been translated to the extreme position, and the first target action is also determined to be completed at this time.

[0092] Among them, passenger information may refer to height, weight, shoulder height, etc. The set position is a variable position determined according to user needs. Since it is a variable position, the adjustment of the set position is stepless. If the user setting is unreasonable or a calculation error occurs, it may cause the seat body to exceed its designed travel range and collide with other parts of the car, such as the driver's seat, causing safety hazards. Therefore, by setting the preset position in step S20, a fixed limit position is given to prevent the first electric unit from exceeding the safe travel range, ensuring the reliability and safety of the product. At the same time, through steps S20-S30, it can also be judged if there is an obstacle, further ensuring the safe control of the seat.

[0093] Optionally, refer to Figure 5 , the safety seat electric control method also includes:

[0094] In the reverse translation mode, it is determined whether the seat body is in a reverse installation state. Figure 3 The seat body is shown in a reverse mounted state.

[0095] If yes, then step S10 and the steps thereafter are executed, that is, direct translation, including executing the steps of determining whether the first electric unit reaches the set position and the steps thereafter.

[0096] If not, a reverse installation prompt is output to prompt the user to install the seat in reverse, or the second electric unit is controlled to drive the seat body to enter a reverse installation state, and then step S10 and subsequent steps are executed.

[0097] Optionally, the safety seat electric control method further includes:

[0098] Get the shoulder height information of the occupant of the safety seat.

[0099] Determine whether to enter the reverse translation mode according to the shoulder height information, wherein when the shoulder height information is less than a preset value, determine to enter the reverse translation mode; and / or determine the set position according to the shoulder height information.

[0100] The shoulder height information of the passenger can be detected by a sensor (such as an infrared sensor, an ultrasonic sensor or a camera, etc.) installed on the seat, or the shoulder height information can be input by the user. In one embodiment, the user can input the height information of the passenger, and the electric control system calculates the shoulder height information of the passenger according to the height information of the passenger.

[0101] A preset value is preset as the shoulder height threshold. If the shoulder height information of the passenger is less than the preset value, it means that the passenger is young and is suitable for the safety seat to sit in reverse, and the reverse translation mode is entered. If the shoulder height information of the passenger is greater than the preset value, the set position in step S90 is determined according to the shoulder height information of the passenger to ensure that the seat is in the safest and most comfortable position.

[0102] The shoulder height information is used to determine whether to enter the reverse translation mode and to determine the set position. Over time, if it is detected that the shoulder height of the passenger is gradually increasing, the electric control system will automatically adjust the reverse translation distance of the seat so that the seat gradually moves forward to accommodate the increase in passenger height. When the passenger's shoulder height reaches a certain threshold, the electric control system will automatically switch the seat from reverse installation mode to forward installation mode to ensure the comfort and safety of the passengers.

[0103] Example scenario:

[0104] After the electric control system is started, the sensor begins to detect the passenger's shoulder height information and transmits the data to the electric control system.

[0105] The electric control system determines whether the passenger needs to enter the reverse translation mode based on the preset shoulder height threshold.

[0106] If the passenger's shoulder height is less than the preset value, the reverse translation mode is entered. In the reverse translation mode, the electric control system dynamically adjusts the seat's translation position according to the passenger's shoulder height information; otherwise, the seat is installed forward and the set position is determined based on the passenger's specific shoulder height information.

[0107] The electric control system regularly updates the passenger's shoulder height information and dynamically adjusts the seat status according to the new shoulder height data.

[0108] When the passenger's shoulder height exceeds the preset value, the electric control system automatically switches the seat from reverse installation mode to forward installation mode and prompts the user.

[0109] In this way, the electric control system can not only dynamically adjust the state of the seat based on the passenger's shoulder height information, but also automatically adapt to changes as the passenger grows, ensuring that the seat is always in the safest and most comfortable position.

[0110] An embodiment of the present invention discloses an electric control device for a safety seat, comprising a computer-readable storage medium storing a computer program and a processor, wherein the processor is used to process the logic of the method of the present invention, and when the computer program is read and executed by the processor, the electric control method for the safety seat as described above is implemented.

[0111] like Figure 6 The embodiment of the present invention discloses an electric control system, including an electric control device for a safety seat, and also including an interaction unit, a first electric unit drive, and a second electric unit drive. The interaction unit is used for a user to input corresponding instructions, such as by key, touch, voice, etc. The first electric unit drive and the second electric unit drive are used to control and drive the first electric unit and the second electric unit, respectively.

[0112] Furthermore, if Figure 6 ,The electric control system also includes other units such as a power supply unit, a level management unit, a communication unit, and so on. ,The communication unit is used to connect to a mobile phone, a car or a cloud server.

[0113] An embodiment of the present invention discloses a safety seat, comprising the electric control device or electric control system of the safety seat as described above.

[0114] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A safety seat electric control method, characterized in that: The safety seat comprises a seat body, a base and an electric unit, wherein the electric unit comprises a first electric unit and a second electric unit, wherein the first electric unit is used to drive the seat body to perform one of a rotational motion and a translational motion relative to the base, and the second electric unit is used to drive the seat body to perform the other of a rotational motion and a translational motion relative to the base; The safety seat electric control method comprises: Controlling the first electric unit to move; Determine whether a first feedback signal corresponding to the first electric unit is received, where the first feedback signal corresponding to the first electric unit is a feedback signal indicating that the first electric unit has reached a preset position and / or an obstruction feedback signal when the first electric unit encounters an obstruction; If yes, determining the state of the first electric unit; If the first electric unit is in a moved-to-position state, it is determined that the first target action is completed.

2. The electric control method for a safety seat according to claim 1, characterized in that: In the rotation-out mode, if the first electric unit is in the moved-in position state, after determining that the first target action is completed, the method further includes: controlling the action of the second electric unit; Determine whether a first feedback signal corresponding to the second electric unit is received, where the first feedback signal corresponding to the second electric unit is a feedback signal indicating that the second electric unit has reached a preset position and / or an obstruction feedback signal when the second electric unit encounters an obstruction; If yes, determining the state of the second electric unit; If the second electric unit is in the moved-to-position state, it is determined that the second target action is completed.

3. The electric control method for a safety seat according to claim 1, characterized in that: In the reverse translation mode, the first electric unit is used to drive the seat body to perform translational movement relative to the base, and the safety seat electric control method further includes: Determining whether the first electric unit reaches a set position, wherein the set position is a user-set position or is determined according to passenger information, and the preset position is a preset fixed position; If so, it is determined that the first target action is completed.

4. The electric control method for a safety seat according to claim 3, characterized in that: The safety seat electric control method further comprises: In the reverse translation mode, determining whether the seat body is in a reverse installation state; If yes, then executing the step of controlling the action of the first electric unit; If not, a reverse installation prompt is output, or the second electric unit is controlled to operate to drive the seat body into a reverse installation state, and then the step of controlling the first electric unit to operate is performed.

5. The electric control method for a safety seat according to any one of claims 1 to 4, characterized in that: Determining the state of the electric unit specifically includes: Obtaining a second feedback signal corresponding to the electric unit; When the first feedback signal is the in-position feedback signal, the second feedback signal is the motion feedback signal of the electric unit, and whether the electric unit encounters resistance is determined according to the motion feedback signal. If so, it is determined that the electric unit is in the in-position state; When the first feedback signal is the resistance feedback signal, the second feedback signal is the position feedback signal of the electric unit, and whether the electric unit reaches the preset position is determined according to the position feedback signal. If so, it is determined that the electric unit is in the movement-in-place state.

6. The electric control method for a safety seat according to claim 5, characterized in that: The motion feedback signal includes a current feedback signal and / or a rotation speed feedback signal of the electric unit.

7. The electric control method for a safety seat according to claim 5, characterized in that: The position feedback signal is measured by a first sensor disposed on the electric unit or by a second sensor disposed on the electric motion path of the seat body.

8. The electric control method for a safety seat according to claim 3 or 4, characterized in that: Also includes: Obtaining shoulder height information of a passenger in the safety seat; Determining whether to enter the reverse translation mode according to the shoulder height information, wherein when the shoulder height information is less than a preset value, determining to enter the reverse translation mode; And / or determining the set position according to the shoulder height information.

9. An electric control device for a safety seat, characterized in that: The invention comprises a computer-readable storage medium storing a computer program and a processor, wherein when the computer program is read and executed by the processor, the electric control method for a safety seat as claimed in any one of claims 1 to 8 is implemented.

10. A safety seat, characterized in that: The invention comprises the electric control device for the safety seat as claimed in claim 9.

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