CN113715701A

CN113715701A - Handheld reminder component for detecting state of safety seat, safety seat and reminding method of sitting state of child

Info

Publication number: CN113715701A
Application number: CN202010450440.2A
Authority: CN
Inventors: 刘修平; 邢孔誉
Original assignee: Zhuhai Hongdian Technology Co ltd
Current assignee: Zhuhai Hongdian Technology Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-11-30

Abstract

The invention discloses a handheld reminder component for detecting the state of a safety seat, the safety seat and a reminding method of the sitting state of a child. The handheld reminder assembly for detecting the state of the safety seat comprises a seat detecting device, a handheld reminder, a key box and a linkage switching mechanism, wherein the handheld reminder is configured to be in signal connection with the seat detecting device and comprises a handheld reminder body, a switch button and a controller coupled with the switch button, the switch button is telescopically installed on the end face of the handheld reminder body, the key box is configured to accommodate a car key, at least part of the key box is movable relative to the handheld reminder, the linkage switching mechanism is provided with a first state for pressing the switch button and enabling the handheld reminder to be turned off and a second state for releasing the switch button and enabling the handheld reminder to be turned on, and at least part of the key box moves relative to the handheld reminder to enable the linkage switching mechanism to be switched between the first state and the second state. The handheld reminder is powered on when in use, thereby saving electricity.

Description

Handheld reminder component for detecting state of safety seat, safety seat and reminding method of sitting state of child

Technical Field

The invention relates to the field of safety seats, in particular to a handheld reminder component for detecting the state of a safety seat, the safety seat and a reminding method for the sitting state of a child.

Background

Intelligent detection and intelligent perception of potential risks have become increasingly deep in people's lives. The most effective method for detecting various potential risk points is to let the close-range or remote stakeholders know the existence of the potential risk at any time so as to let the stakeholders eliminate the related risk in time. The close-range or remote stakeholders will usually use a handheld terminal (wireless receiving end) to receive the preset information of the potential pre-warning risks. As is most common, the smartphone receives these preset potential pre-warning risk information. In order to ensure the early warning of the power on the mobile phone at any time, a low power is usually adopted to remind the user of charging and configuring a charging wire and a standby battery assembly, or a battery with higher capacity is configured as far as possible to prolong the standby time, or a designed handheld circuit is a low power consumption circuit as far as possible.

In the intelligent detection of the safety seat, the detection of whether the ISOFIX connector of the safety seat is effectively connected with the ISOFIX connecting round rod arranged on the motor vehicle and the detection of whether the safety belt is correctly and effectively restrained when a child passenger sits on the safety seat are both important. In addition, since there are many cases in which a child is left behind in a vehicle and death occurs due to high temperature, it is also important to notify the sitting state of a child occupant in a safety seat.

The high-risk condition needs to report the danger information to the guardian who protects the child in time after the danger occurs through the detection alarm device, especially to the driver nearest to the child passenger. Most drivers carry the smart phone with them, so that the smart phone can be used as an information receiving end for receiving and detecting dangerous situations. However, since the operating system of the mobile phone includes an apple system and an android system, and the systems are continuously upgraded, the APP on the mobile phone as the receiving end needs to be continuously maintained. In order to solve the above problems, a handheld reminder specially matched with a seat detection device has appeared in the market at present, but the handheld reminder is easy to be forgotten. And the handheld reminder is in a standby state for a long time, and the power consumption is high.

Disclosure of Invention

The invention aims to provide a safety seat state detection handheld reminder assembly, a safety seat and a reminding method of the sitting state of a child, so that a driver can conveniently carry the reminder.

In a first aspect, the present invention provides a hand-held reminder assembly for detecting a status of a safety seat, comprising:

a seat detection device configured to detect a seating state of a child occupant;

the handheld reminder is configured to be in signal connection with the seat detection device and comprises a handheld reminder body, a switch button and a controller coupled with the switch button, wherein the switch button is telescopically arranged on the end surface of the handheld reminder body;

a key case configured to receive a car key and at least a portion of the key case being movable relative to the handheld reminder; and

the linkage switching mechanism is provided with a first state and a second state, the first state is that a switch button is pressed and the handheld reminder is turned off, the second state is that the switch button is released and the handheld reminder is turned on, at least part of the key box moves relative to the handheld reminder to enable the linkage switching mechanism to be switched between the first state and the second state, and the controller controls the handheld reminder to be turned on or turned off according to the action of the linkage switching mechanism.

In some embodiments, the linkage switching mechanism comprises a buckle fixedly arranged on the key box, the handheld reminder further comprises a connecting plate connected to the end face, the connecting plate and the end face enclose to form an accommodating groove, the key box is movable relative to the handheld reminder, and in the first state, the buckle is inserted in the accommodating groove to press the switch button; in the second state, the hasp leaves the accommodating groove to loosen the switch button.

In some embodiments, the inner wall of the connecting plate is provided with a stop block, the buckle comprises a U-shaped arm, and the stop block is clamped on the bottom edge of the U-shaped arm.

In some embodiments, the key case includes a case and a cover slidably coupled to the case.

In some embodiments, the key box includes a box body and a cover body, the handheld reminder is disposed in the box body, the linkage switching mechanism includes a trigger block, the trigger block is located above the switch button and is rotatable relative to the box body to press or disengage the switch button, and the cover body rotates relative to the box body to drive the trigger block to rotate.

In some embodiments, the ganged switching mechanism further comprises a contact post, the trigger block comprises a first portion located on one side of the rotation axis and a second portion located on the other side of the rotation axis, the switch button is located below the first portion, the contact post is located below the second portion and comprises a contact surface that contacts the second portion, and the contact surface is higher than the switch button.

In some embodiments, the linkage switching mechanism further comprises a resilient member disposed between the abutment post and the bottom surface of the cartridge body.

In some embodiments, a protrusion is disposed on one side of the box, the cover includes a hook disposed at an end portion, and the hook is hung on the protrusion when the cover is rotated to an open state.

In some embodiments, the key case includes an upper case and a lower case, the upper case is slidably sleeved in the lower case, the upper case includes an opening at the bottom, the handheld reminder is placed in the upper case and the switch button is located at the bottom, the linkage switching mechanism includes a protruding structure disposed on the bottom wall of the lower case, and the protruding structure presses the switch button when the upper case is placed in the lower case; when the upper case body slides upward and leaves the lower case body, the protrusion structure releases the switch button.

In some embodiments, the upper case is provided with an unlocking button, the lower case is provided with a first through hole and a second through hole which are arranged at intervals in the height direction, and the unlocking button is selectively arranged in one of the first through hole and the second through hole in a penetrating manner.

In some embodiments, the upper case is further provided with a signal leakage hole, and when the unlocking button is inserted into the second through hole, the signal leakage hole is exposed.

In some embodiments, the key case is a shielded case and is made of a benign conductive material.

In some embodiments, the safety seat state detecting handheld reminder assembly further comprises a speaker and/or a display screen and/or a warning light and/or a buzzer in signal connection with the handheld reminder.

In some embodiments, the seat detection device comprises a seat temperature detection device configured to detect a seat temperature in real time and send the seat temperature to the handheld reminder; and/or the detecting device comprises a head detecting device which is arranged in the child headgear equipment to detect whether the child occupant wears the headgear equipment; and/or the detecting device comprises an ISOFIX connection detecting device, and the ISOFIX connection detecting device is configured to detect the connection state of the ISOFIX connector; and/or the detection device comprises a safety belt detection device configured to detect the tension of the safety belt.

In some embodiments, the belt tension detecting device is disposed in a shoulder harness sleeve of the seat belt.

In some embodiments, the seat belt detection device includes a timer configured to calculate a duration of time after the tension of the seat belt reaches a preset value and send the duration of time to the handheld reminder.

In some embodiments, a battery level alarm circuit is arranged inside the handheld reminder.

In some embodiments, a delayed shutdown circuit is arranged in the handheld reminder, and the controller controls the delayed shutdown circuit to work according to the action of the switch button.

A second aspect of the invention provides a safety seat comprising a safety seat body and a safety seat status detecting handheld reminder assembly as provided in any of the first aspects of the invention.

A third aspect of the present invention provides a method for reminding a child of a sitting state based on the handheld reminder assembly of any one of the first aspect of the present invention, comprising the steps of:

when the vehicle key is taken out of the key box and the vehicle is in a running state, the linkage switching mechanism releases the switch button to start the handheld reminder; and

when the vehicle is in a non-driving state and the vehicle key is put into the key box, the linkage switching mechanism presses the switch button to enable the handheld reminder to be turned off.

In some embodiments, the linkage switching mechanism presses the switch button to turn off the handheld reminder includes controlling the handheld reminder to turn off after a first set time is delayed after the linkage switching mechanism presses the switch button.

In some embodiments, the reminding method further comprises the step of detecting whether the child passenger sits on the seat by the seat detecting device,

when the vehicle is in a running state:

when the seat detection device detects that the child sits on the seat for more than a second set time, the seat detection device enters an early warning state and sends a signal to the handheld reminder; and/or when the seat detection device detects that the child leaves the seat for more than a third set time, the seat detection device sends an alarm signal to the handheld reminder;

when the vehicle is in a non-driving state:

when the seat detection device detects that the child leaves the seat for more than the fourth set time, the seat detection device enters a dormant state.

In some embodiments, the reminding method further comprises the step of detecting whether the child occupant is restrained by the safety belt by the seat detection device,

when the vehicle is in a running state:

when the seat belt tension value detected by the seat detection device reaches a preset value, the seat detection device enters an early warning state and sends a signal to the handheld reminder; and/or when the seat detection device detects that the tension value of the safety belt is invalid, the seat detection device sends an alarm signal to the handheld reminder;

when the vehicle is in a non-driving state:

and when the seat detection device detects that the tension value of the safety belt is invalid and exceeds the fifth set time, the seat detection device enters a dormant state.

In some embodiments, the reminding method further comprises: the hand-held reminder alerts when the driver is away and the child occupant is left on the vehicle.

In some embodiments, the handheld reminder alerts when the driver is more than a set distance away from the vehicle and the seat detection device detects that a child is still sitting on the seat.

Based on the technical scheme provided by the invention, the safe seat state detection handheld reminder component comprises a seat detection device and a handheld reminder, the seat detection device is configured to detect the sitting state of a child passenger, the seat detection device is configured to be in signal connection with the seat detection device and comprises a handheld reminder body, a switch button and a controller coupled with the switch button, the switch button is telescopically mounted on the end face of the handheld reminder body, the key box is configured to accommodate a car key, at least part of the key box is movable relative to the handheld reminder, the linkage switching mechanism is provided with a first state that the switch button is pressed and the handheld reminder can be turned off and a second state that the switch button is released and the handheld reminder can be turned on, and at least part of the key box moves relative to the handheld reminder to enable the linkage switching mechanism to be switched between the first state and the second state. The handheld reminder component for detecting the state of the safety seat is integrated with the key box through the handheld reminder, so that a driver can carry the handheld reminder while carrying the key box, and the handheld reminder is prevented from being forgotten. When the key needs to be taken out to drive the vehicle, at least part of the key box moves so that the linkage switching mechanism releases the switch button, and the handheld reminder is started at the moment; after the key is put into the key box when the vehicle is stopped, the linkage switching mechanism presses the switch button to enable the handheld reminder to be powered off, so that the handheld reminder is prevented from consuming power when not in use. Therefore, the handheld reminder of the handheld reminder component of the invention is only started when in use and is not stopped when in use, thereby saving electricity and prolonging the service life.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic structural diagram of a hand-held reminder assembly according to a first embodiment of the present invention;

FIG. 2 is a schematic structural view of the hand-held reminder and the key box of the hand-held reminder assembly shown in FIG. 1, shown separated;

FIG. 3 is a schematic structural diagram of the hand-held reminder of FIG. 1;

FIG. 4 is a schematic structural view of the connection plate of FIG. 3;

FIG. 5 is a schematic structural view of the key case of FIG. 1;

FIG. 6 is a schematic diagram of the internal structure of the hand-held reminder assembly shown in FIG. 1;

FIG. 7 is a schematic structural diagram of the cover in FIG. 6;

FIG. 8 is a schematic structural view illustrating a cover of a hand-held reminder assembly in a closed state according to a second embodiment of the present invention;

FIG. 9 is a schematic view of the internal structure of the hand-held reminder assembly shown in FIG. 8;

FIG. 10 is a schematic view of the hand-held reminder assembly of FIG. 8 with the cover in an open position;

FIG. 11 is a schematic view of the internal structure of the hand-held reminder assembly shown in FIG. 10;

FIG. 12 is a perspective view of the hand-held reminder assembly shown in FIG. 10;

FIG. 13 is a schematic diagram of a partially enlarged structure of the trigger block in FIG. 12;

FIG. 14 is a schematic structural view of the hand-held reminder of FIG. 8;

FIG. 15 is a schematic structural diagram of a hand-held reminder assembly according to a third embodiment of the present invention;

FIG. 16 is a schematic structural view of the hand-held reminder assembly of FIG. 15 in a closed state;

FIG. 17 is a schematic view of the internal construction of the hand held reminder assembly shown in FIG. 16;

FIG. 18 is a schematic structural view of the hand-held reminder assembly of FIG. 15 in an open state;

FIG. 19 is a schematic view of the hand-held reminder assembly of FIG. 15 with the upper and lower housings separated.

Each reference numeral represents:

1. a hand-held reminder;

11. a hand-held reminder body; 12. a switch button; 13. a connecting plate; 14. a limiting block;

15. a return spring; 16. a speaker; 17. a display screen;

2. a key case;

21. a box body; 22. a cover body; 23. a protrusion; 24. hooking;

25. an upper box body; 251. an unlock button; 252. a signal leakage hole; 253. a groove;

26. a lower box body; 261. a first through hole; 262. a second through hole;

3. a hasp;

4. a trigger block;

41. a rotating shaft;

5. a butting post;

6. an elastic member;

8. a protruding structure;

9. a mesh cover;

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously positioned and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 19, the safety seat status detecting handheld reminder assembly of the embodiment of the present invention includes:

the handheld reminder 1 is configured to be in signal connection with the seat detection device and comprises a handheld reminder body 11, a switch button 12 and a controller coupled with the switch button 12, wherein the switch button 12 is telescopically mounted on the end face of the handheld reminder body 11;

a key case 2 configured to accommodate a car key and at least part of the key case 2 being movable relative to the handheld reminder 1; and

the linkage switching mechanism is provided with a first state that the switch button 12 is pressed and the handheld reminder can be turned off and a second state that the switch button 12 is released and the handheld reminder can be turned on, at least part of the key box 2 moves relative to the handheld reminder 1 to enable the linkage switching mechanism to be switched between the first state and the second state, and the controller controls the handheld reminder to be turned on or turned off according to the action of the linkage switching mechanism.

The safety seat state detection handheld reminder component provided by the embodiment of the invention integrates the handheld reminder 1 and the key box 2 together, so that a driver carries the handheld reminder 1 while carrying the key box 2, and the handheld reminder 1 is prevented from being forgotten. When the key needs to be taken out to drive the vehicle, at least part of the key box 2 moves so that the linkage switching mechanism releases the switch button 12, and the handheld reminder 1 is started; after the vehicle is stopped and the key is put into the key box, the linkage switching mechanism presses the switch button 12 to turn off the handheld reminder 1, thereby avoiding power consumption of the handheld reminder 1. Therefore, the handheld reminder of the handheld reminder assembly in the embodiment of the invention is only started when in use and is not stopped when in use, thereby saving electricity and prolonging the service life.

In order to avoid that the handheld reminder is in a shutdown state and loses the alarm function when a driver stops or leaves the vehicle and a child is forgotten to leave the vehicle, a delayed shutdown circuit is arranged in the handheld reminder 1 of the embodiment, and the controller controls the delayed shutdown circuit to work according to the action of the switch button 12.

Specifically, it may be set that after the switch button 12 is pressed, the controller controls the delayed shutdown circuit to operate, and controls the handheld reminder 1 to shutdown after a first set time.

The handheld reminder 1 of this embodiment is internally provided with a battery power alarm circuit. When the actual electric quantity of the battery of the handheld reminder 1 is lower than the minimum set electric quantity, the battery lights the alarm circuit to work and sends out an alarm signal.

The handheld reminder 1 of the embodiment has a USB charging port to facilitate charging. Of course, the handheld reminder 1 can also be powered by installing a battery.

The hand-held reminder assembly of the first embodiment of the present invention comprises a hand-held reminder 1 and a key box 2. As shown in fig. 1, the handheld reminder 1 and the key box 2 can be overlapped with each other; as shown in fig. 2, the hand-held reminder 1 and the key case 2 can also be disconnected from each other.

Specifically, as shown in fig. 3 to 5, the linkage switching mechanism of the present embodiment includes a buckle 3 fixedly disposed on the key box 2, the handheld reminder 1 further includes a connecting plate 13 connected to the end surface, the connecting plate 13 and the end surface enclose to form an accommodating groove, the key box 2 is movable relative to the handheld reminder 1, and in the first state, the buckle 3 is inserted into the accommodating groove to press the switch button 12; in the second state, the buckle 3 leaves the container to release the switch knob 12.

The inner wall of the connecting plate 13 of this embodiment is provided with a stopper 14, and the hasp 3 includes the U-shaped arm, and stopper 14 card is located on the bottom edge of U-shaped arm.

The internal structure of the hasp 3 when the switch button 12 is pressed is shown in fig. 6, and a return spring 15 is arranged between the switch button 12 and the handheld reminder body 11. Therefore, when the hasp 3 releases the switch button 12, the switch button 12 is returned by the return spring 15 to protrude from the end surface.

As shown in fig. 6 and 7, the key box 2 of the present embodiment includes a box body 21 and a cover 22, and the cover 22 is slidably connected to the box body 21 so as to facilitate taking and placing the car key.

As shown in fig. 7, one end of the cover 22 of the present embodiment is provided with a protrusion, and the other end is provided with a groove, and the cover 22 is in concave-convex fit with the box 21 through the protrusion and the groove. As shown in fig. 8 to 14, the key case 2 of the second embodiment of the present invention includes a case body 21 and a cover body 22. The handheld reminder 1 is arranged in the box body 21. The linkage switching mechanism comprises a trigger block 4, the trigger block 4 is located above the switch button 12 and can rotate relative to the box body 21 to press or separate from the switch button 12, and the cover body 22 rotates relative to the box body 21 to drive the trigger block 4 to rotate.

The switch button 12 of the handheld reminder 1 is positioned on the upper end surface of the handheld reminder, and the trigger block 4 is positioned above the switch button 12. As shown in fig. 9, when the trigger block 4 rotates clockwise and the switch button 12 is released, the handheld reminder 1 is turned on; as shown in fig. 11, when the trigger block 4 rotates counterclockwise and the switch button 12 is pressed, the handheld reminder 1 is turned off.

Specifically, as shown in fig. 12 and 13, the trigger block 4 of the present embodiment is connected to the case 21 through 14. And the trigger block 4 includes a first portion at one side of its rotational shaft 41 and a second portion at the other side of its rotational shaft 41, and the switch knob 12 is located below the first portion. The interlocking and switching mechanism of the present embodiment further includes a contact post 5, and the contact post 5 is located below the second portion and includes a contact surface that contacts the second portion, and the contact surface is higher than the switch button 12.

The interlocking and switching mechanism of the present embodiment further includes an elastic member 6 disposed between the abutment post 5 and the bottom surface of the case 21.

The rotation of the trigger block 4 is driven by the opening and closing of the cover 22. Specifically, as shown in fig. 9 and 11, when the cover 22 is changed from open to closed, the cover 22 presses the second portion of the trigger block 4 to rotate the trigger block 4 clockwise so that the first portion of the trigger block 4 releases the switch button 12; when the cover 22 is changed from closed to open, the cover 22 releases the second portion of the trigger block 4 so that the trigger block 22 rotates counterclockwise under abutment of the abutment post 5 to press the switch knob 12.

In order to keep the key box 2 in the open state, as shown in fig. 10, a protrusion 23 is provided on one side of the box body 21 of the present embodiment, the cover 22 includes a hook 24 at an end portion, and when the cover 22 is rotated to the open state, the hook 24 is hung on the protrusion 23.

Specifically, as shown in fig. 9, the box body 21 includes two cavities, one cavity is used for placing the handheld reminder 1, and the other cavity is used for placing the car key. The other cavity for placing the car key is a shielding cavity for shielding the radio frequency signal output of the car key. As shown in fig. 12, the handheld reminder assembly of this embodiment further includes a mesh cover 9 covering the other cavity, and the mesh cover 9 is also rotatably disposed relative to the box body 21. And the portion of the lid body 22 opposite to the other cavity has a groove body for accommodating the mesh lid 9. A torsion spring is arranged at a rotating point between the mesh cover 9 and the box body 21, so that the mesh cover 9 is normally in a closed position. After the vehicle key is placed in the key box, the mesh cover 9 is automatically closed under the action of the elastic force of the spring, and the vehicle key is further prevented from sliding out under normal closing. Specifically, the mesh cover may be made of metal or plastic. As shown in fig. 14, in order to better remind and alarm the driver, the safety seat status detecting handheld reminder assembly of the present embodiment further includes a speaker 16 and a display screen 17 in signal connection with the handheld reminder 1, so as to remind the driver both audibly and visually.

In other embodiments not shown in the drawings, a warning lamp or a buzzer or the like in signal connection with the handheld reminder 1 can also be arranged.

As shown in fig. 15 to 19, the key case 2 according to the third embodiment of the present invention includes an upper case 25 and a lower case 26, and the upper case 25 is slidably received in the lower case 26. As shown in fig. 17, the handheld reminder 1 is placed in the upper box 25 and the switch button 12 is located on the bottom end surface of the handheld reminder 1, and the upper box 25 includes an opening at the bottom so that the switch button 12 is exposed. The linkage switching mechanism comprises a protruding structure 8 arranged on the bottom wall of the lower box body 26, and when the upper box body 25 is placed in the lower box body 26, the protruding structure 8 presses the switch button 12; when the upper case 25 is slid upward away from the lower case 26, the protrusion structure 8 releases the switch knob 12.

As shown in fig. 16, the upper case 25 of the present embodiment is provided with an unlock button 251, the lower case 26 is provided with a first through hole 261 and a second through hole 262 spaced apart in the height direction, and the unlock button 251 is inserted into one of the first through hole 261 and the second through hole 262 when the upper case 25 slides relative to the lower case 26. Specifically, when the upper case 25 is placed in the lower case 26, the unlocking button 251 is inserted into the first through hole 261; when the upper case 25 is slid upward, the unlocking button 251 is inserted into the second through hole 262.

In order to facilitate the driver to pull out the upper box 25, the upper box 25 of the present embodiment is provided with a groove 253.

The upper case 25 of this embodiment is further provided with a signal leakage hole 252, and when the unlocking button 251 is inserted into the second through hole 262, the signal leakage hole 252 is exposed.

The key case 2 of the above embodiments is a shield case made of a benign conductive material. Specifically, the benign conductive material may be a benign conductive metal such as copper, aluminum, gold, or the like; the benign conductive material can also be a high molecular plastic material with high conductivity.

And the key box 2 is arranged in a sealing way and has the function of shielding.

The following is a detailed description of the installation position and the working process of the seat detection device according to the embodiment of the present invention.

The seat detection device of the embodiment of the invention comprises a seat temperature detection device which is configured to detect the temperature of the seat in real time and send the temperature of the seat to the handheld reminder. The seat detection device comprises a head detection device which is arranged in the child headgear equipment to detect whether the child occupant wears the headgear equipment. The seat detection device comprises an ISOFIX connection detection device configured to detect a connection state of an ISOFIX connector. The seat detection device includes a belt detection device configured to detect a tension of a seat belt.

The safety belt tension detecting device of the embodiment is arranged in a shoulder belt sleeve of a safety belt.

The seat belt detection device of the present embodiment includes a timer configured to calculate a duration after the tension of the seat belt reaches a preset value and send the duration to the handheld reminder 1. The timer is arranged so that the driver can stop to rest and release the safety belt of the child passenger after the child passenger is restrained by the safety belt for a time period exceeding the maximum limit time, thereby preventing the child passenger from being restrained for a long time and being injured.

The embodiment also provides a safety seat, which comprises a safety seat body and the safety seat state detection handheld reminder assembly provided by each embodiment.

The embodiment of the invention also provides a method for reminding the sitting state of a child based on the handheld reminder assembly of each embodiment, which comprises the following steps:

when the vehicle key is taken out of the key box and the vehicle is controlled to be in a running state, the switch button is released by the linkage switching mechanism and the handheld reminder is started; and

when the vehicle is controlled to be in a non-driving state and the vehicle key is put into the key box, the linkage switching mechanism presses the switch button to enable the handheld reminder to be turned off.

According to the reminding method provided by the embodiment of the invention, the power-on and power-off state of the handheld reminder is correlated with whether the car key is put into the key box, so that the handheld reminder is powered off when the car is in a non-driving state, and the electricity is saved.

In order to avoid the situation that the handheld reminder is in a shutdown state and loses the alarm function when the driver stops and leaves the vehicle and the child is forgotten to leave the vehicle, the linkage switching mechanism of the embodiment presses the switch button so that the handheld reminder is shut down, and after the linkage switching mechanism presses the switch button, the handheld reminder is controlled to be shut down after the first set time is delayed.

The reminding method of the embodiment further comprises the step of detecting whether the child passenger sits on the seat by the seat detecting device,

when the vehicle is in a running state:

when the seat detection device detects that the child sits on the seat for more than a second set time, the seat detection device enters an early warning state and sends a signal to the handheld reminder; and when the seat detection device detects that the child leaves the seat for more than a third set time, the seat detection device sends an alarm signal to the handheld reminder. Specifically, when a child sits on the seat for more than 5 seconds, the seat detection device enters an early warning state and sends the early warning state to the handheld reminder, and the LED lamp of the handheld reminder flashes green at an interval of 3 seconds to indicate that the child is in a sitting state. When children get up and leave the seat in the way of driving, the seat detection device judges that no pressure state exceeds 3 seconds, and the seat detection device sends a signal to the handheld reminiscences, and the LED lamp interval of the handheld reminiscences flashes red for 1 second to give out 1KHz sound at interval vibrations and buzzer interval.

When the vehicle is in a non-driving state:

when the seat detection device detects that the child leaves the seat for more than the fourth set time, the seat detection device enters a dormant state. Specifically, when the child leaves the seat for 60 seconds, the seat detection device enters a sleep state to save power. The seat is automatically activated into an early warning state by pressure conduction.

In addition to detecting whether a child is seated on the safety seat, the method of reminding of this embodiment further includes detecting whether the child occupant is restrained by the safety belt.

When the vehicle is in a running state:

when the seat belt tension value detected by the seat detection device reaches a preset value, the seat detection device enters an early warning state and sends a signal to the handheld reminder. When the seat detection device detects that the tension value of the safety belt is invalid, the seat detection device sends an alarm signal to the handheld reminder.

When the vehicle is in a non-driving state:

Specifically, after the seat detection device detects that the tension value of the tension of the safety belt is invalid for more than 60 seconds, the seat detection device automatically enters a dormant state, and the seat detection device is activated to be in an early warning state when the tension value is restored to a set value.

The reminding method of the embodiment further comprises the following steps: the hand-held reminder alerts when the driver is away and the child occupant is left on the vehicle.

Specifically, when the driver leaves the vehicle for more than a set distance and the seat detection device detects that the child is still sitting on the seat, the handheld reminder gives an alarm. The reminding method of the embodiment realizes the detection of the distance between the handheld reminder and the seat detection device through the signal transmission between the handheld reminder and the seat detection device, and the handheld reminder is carried by a driver, so that the detection of the distance between the driver and a vehicle can be realized.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.

Claims

1. A handheld reminiscences subassembly is listened to safety seat state, which characterized in that includes:

the handheld reminder (1) is configured to be in signal connection with the seat detection device and comprises a handheld reminder body (11), a switch button (12) and a controller coupled with the switch button (12), wherein the switch button (12) is telescopically arranged on the end face of the handheld reminder body (11);

a key case (2) configured to accommodate a car key and at least part of the key case (2) being movable relative to the handheld reminder (1); and

the linkage switching mechanism is provided with a first state that the switch button (12) is pressed and the handheld reminder is turned off and a second state that the switch button (12) is released and the handheld reminder is turned on, at least part of the key box (2) moves relative to the handheld reminder (1) to enable the linkage switching mechanism to be switched between the first state and the second state, and the controller controls the handheld reminder to be turned on or turned off according to the action of the linkage switching mechanism.

2. The safety seat state detection handheld reminder assembly according to claim 1, wherein the linkage switching mechanism includes a buckle (3) fixedly disposed on the key box (2), the handheld reminder (1) further includes a connecting plate (13) connected to the end surface, the connecting plate (13) and the end surface enclose to form a receiving groove, the key box (2) is movable relative to the handheld reminder (1), and in the first state, the buckle (3) is inserted into the receiving groove to press the switch button (12); in the second state, the hasp (3) leaves the accommodating groove to release the switch button (12).

3. The safety seat state detection handheld reminder assembly according to claim 2, wherein a stopper (14) is disposed on an inner wall of the connecting plate (13), the buckle (3) includes a U-shaped arm, and the stopper (14) is clamped on a bottom edge of the U-shaped arm.

4. The hand-held reminder assembly for detecting the status of a safety seat according to claim 2, wherein the key box (2) comprises a box body (21) and a cover body (22), and the cover body (22) is slidably connected to the box body (21).

5. The safety seat state detection handheld reminder assembly according to claim 1, wherein the key box (2) includes a box body (21) and a cover body (22), the handheld reminder (1) is disposed in the box body (21), the linkage switching mechanism includes a trigger block (4), the trigger block (4) is disposed above the switch button (12) and is rotatable relative to the box body (21) to press or disengage from the switch button (12), and the cover body (22) rotates relative to the box body (21) to drive the trigger block (4) to rotate.

6. The hand-held reminder assembly for detecting the status of a safety seat according to claim 5, wherein the linkage switching mechanism further comprises a contact post (5), the trigger block (4) comprises a first portion located at one side of the rotation axis and a second portion located at the other side of the rotation axis, the switch button (12) is located below the first portion, the contact post (5) is located below the second portion and comprises a contact surface contacting the second portion, and the contact surface is higher than the switch button.

7. The hand-held reminder assembly for detecting the status of a safety seat according to claim 6, wherein the linkage switching mechanism further comprises an elastic member (6) disposed between the abutment post (5) and the bottom surface of the box (21).

8. The handheld reminder assembly of claim 5, wherein a protrusion (23) is disposed on one side of the box (21), the cover (22) includes a hook (24) at an end portion, and when the cover (22) rotates to an open state, the hook (24) is hung on the protrusion (23).

9. The safety seat status detecting handheld reminder assembly according to claim 1, wherein the key box (2) includes an upper box (25) and a lower box (26), the upper box (25) is slidably sleeved in the lower box (26), the upper box (25) includes an opening at the bottom, the handheld reminder (1) is placed in the upper box (25) and the switch button (12) is at the bottom, the linkage switching mechanism includes a protruding structure (8) disposed on a bottom wall of the lower box (26), when the upper box (25) is placed in the lower box (26), the protruding structure (8) presses the switch button (12); the protruding structure (8) releases the switch button (12) when the upper case (25) slides upward away from the lower case (26).

10. The handheld reminder assembly for detecting the status of a safety seat according to claim 9, wherein an unlocking button (251) is disposed on the upper case (25), a first through hole (261) and a second through hole (262) are disposed on the lower case (26) at intervals in the height direction, and the unlocking button (251) is selectively inserted into one of the first through hole (261) and the second through hole (262).

11. The handheld reminder assembly of claim 10, wherein the upper case (25) further has a signal leakage hole (252), and when the unlock button (251) is inserted into the second through hole (262), the signal leakage hole (252) is exposed.

12. A safety seat status detecting hand-held reminder assembly according to any of claims 1 to 11, characterized in that the key case (2) is a shielded case and is made of a benign conductive material.

13. The safety seat status detecting hand-held reminder assembly according to any one of claims 1 to 11, characterized in that the safety seat status detecting hand-held reminder assembly further comprises a speaker and/or a display screen and/or a warning light and/or a buzzer in signal connection with the hand-held reminder (1).

14. A safety seat status detecting handheld reminder assembly according to any one of claims 1 to 11, wherein the seat detection device comprises a seat temperature detection device configured to detect seat temperature in real time and send the seat temperature to the handheld reminder; and/or the detecting device comprises a head detecting device which is arranged in the child headgear equipment to detect whether a child occupant wears the headgear equipment; and/or the detecting device comprises an ISOFIX connection detecting device, and the ISOFIX connection detecting device is configured to detect the connection state of the ISOFIX connector; and/or the detecting device comprises a safety belt detecting device which is configured to detect the tension of the safety belt.

15. The hand-held reminder assembly for detecting status of a safety seat according to claim 14, wherein the belt tension detecting device is disposed in a shoulder belt sleeve of the safety belt.

16. The seat belt status detecting handheld reminder assembly of claim 14, wherein the seat belt detecting device comprises a timer configured to calculate a duration of time after the tension of the seat belt reaches a preset value and to send the duration of time to the handheld reminder (1).

17. The safety seat state detection handheld reminder assembly according to claim 1, wherein a battery level alarm circuit is disposed inside the handheld reminder (1).

18. The safety seat state detection handheld reminder assembly according to claim 1, wherein a delayed shutdown circuit is disposed inside the handheld reminder (1), and the controller controls the delayed shutdown circuit to operate according to the action of the switch button.

19. A safety seat comprising a safety seat status detecting handheld reminder assembly according to any one of claims 1 to 18 and a safety seat body.

20. A method of alerting of a child's seating status based on the hand-held reminder assembly of any one of claims 1-18, comprising the steps of:

21. A method as recited in claim 20, wherein said pressing of said switch button by said ganged switch mechanism to turn off said hand-held reminder comprises controlling said hand-held reminder to turn off after a first set time delay after said pressing of said switch button by said ganged switch mechanism.

22. A method as recited in claim 20, wherein the reminder method further comprises detecting whether a child occupant is seated in the seat with the seat detection device,

when the vehicle is in a running state:

when the vehicle is in a non-driving state:

and when the seat detection device detects that the child leaves the seat for more than the fourth set time, the seat detection device enters a dormant state.

23. A method as recited in claim 20, wherein the reminder method further comprises detecting whether the child occupant is restrained by a seat belt by the seat detection device,

when the vehicle is in a running state:

when the safety belt tension value detected by the seat detection device reaches a preset value, the seat detection device enters an early warning state and sends a signal to the handheld reminder; and/or when the seat detection device detects that the tension value of the safety belt is invalid, the seat detection device sends an alarm signal to the handheld reminder;

when the vehicle is in a non-driving state:

24. A method of alerting of a child's seating status of a handheld reminder assembly according to claim 20, the method further comprising: the hand-held reminder alerts when the driver is away and the child occupant is left on the vehicle.

25. A method as recited in claim 20, wherein the hand-held reminder alarms when the driver is away from the vehicle beyond a predetermined distance and the seat detection device detects that the child is still seated on the seat.