CN212667189U

CN212667189U - Child passenger restraint system

Info

Publication number: CN212667189U
Application number: CN202021857535.8U
Authority: CN
Inventors: 刘修平
Original assignee: Zhuhai Hongdian Technology Co ltd; Unitron Enterprises Zhuhai Co ltd
Current assignee: Zhuhai Hongdian Technology Co ltd; Unitron Enterprises Zhuhai Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-03-09
Anticipated expiration: 2030-08-31

Abstract

The present disclosure relates to a child occupant restraint system comprising: a seat body; a seat belt; the detecting component is arranged at the buckling part of the safety belt, the stress part of the safety belt for restraining the child passenger, the connection part of the safety belt and the seat body or the passing part of the safety belt, and/or the connection part of the seat body and the motor vehicle and is used for detecting the working state of the child passenger restraining system; the signal transmitting assembly is used for transmitting a preset instruction signal when the working state of the child passenger restraint system is changed in a set mode; and the execution terminal comprises a signal receiving end which is connected with the signal transmitting assembly in a wireless communication mode, and is configured to execute the preset operation scheme according to the instruction signal. Based on this, when the shoulder belt fixer is accurately restrained, the audio and video file can be played, and when the shoulder belt fixer is separated, the audio and video file can be stopped playing, so that a child can be used to form a habit of taking the child passenger restraint system according to requirements.

Description

Child passenger restraint system

Technical Field

The present disclosure relates to the field of child restraint systems, and more particularly to a child restraint system.

Background

Children who use the child restraint system for the first time in China generally have instinctive resistance, and the situation is related to the habit that parents often hold the children in their hands in China when the parents raise babies, and the children are easy to cry and cry once the children are separated from the arms of adults.

Most parents of infant care realize that the infant needs to take a child passenger restraint system according to requirements when taking a motor vehicle to ensure the traveling safety of the infant. However, the child leaves the seat of the parent and puts the child in his arms and then cries, so that the experience of the parent in using the safety seat for going out is discounted, how the child is willing to take the child passenger restraint system is a pain point of the parent and the child, and the child safety seat can be corrected in time when the child safety seat is not properly used, and the child safety seat is also a great demand of the parent and the child.

SUMMERY OF THE UTILITY MODEL

In view of this, the present disclosure provides a child restraint system, which enables an infant to prefer to actively take a safety seat, associates a detection component for detecting an operating state of the child restraint system with an execution terminal, and enables the execution terminal to execute a preset operation scheme corresponding to the detection component when the safety seat is correctly used, for example, play a preset audio/video file to reward the child, so as to improve the initiative of the child when the child restraint system is taken, increase the safety of the child when the child rides on a motor vehicle and the experience of parents when the child restrains the system, and enable the execution terminal to execute the preset operation scheme corresponding to the execution terminal when the child safety seat is not correctly ridden, for example, stop playing the audio/video file or send alarm information, thereby reminding an abnormal state of the current child safety seat.

In one aspect of the present disclosure, there is provided a child occupant restraint system comprising:

a seat body detachably connected to a motor vehicle;

a seat belt connected to the seat body and capable of restraining a child occupant in the seat body in a fastened state;

the detecting component is arranged at the buckling part of the safety belt, the stress part of the safety belt for restraining the child passenger, the connection part of the safety belt and the seat body or the passing part of the safety belt, and/or the connection part of the seat body and the motor vehicle and is used for detecting the working state of the child passenger restraining system;

the signal transmitting assembly is in wired communication connection with the at least one detecting assembly and used for sending a preset instruction signal when the working state of the child occupant restraint system is changed in a set mode; and

the execution terminal comprises a signal receiving end which is connected with the at least one signal transmitting assembly in a communication mode, and is configured to execute a preset operation scheme according to at least one instruction signal.

In some embodiments, the harness further comprises:

a first shoulder strap;

a second shoulder strap; and

the shoulder belt fixer comprises a first cover body connected with the first shoulder belt and a second cover body connected with the second shoulder belt, and the first cover body and the second cover body can be mutually buckled and connected;

wherein the at least one signal emitting component comprises:

the first signal emitter is arranged inside the first cover body, comprises a communication driving circuit and can send out a preset instruction signal when the connection state between the first cover body and the second cover body is changed.

In some embodiments, the detection component comprises:

the convex column is fixedly arranged on the second cover body, and the height direction of the convex column faces to the first cover body;

the permanent magnet is fixedly arranged at one end of the convex column close to the first cover body; and

the first reed switch is arranged in the first cover body, is connected with a communication driving circuit of the first signal emitter in a wired communication mode, and can trigger the communication driving circuit of the first signal emitter to be switched on when the magnetic flux of the first reed switch reaches a set value;

when the first cover body and the second cover body are mutually buckled, the permanent magnet can change the magnetic flux of the first reed pipe to the set value.

In some embodiments, the permanent magnet does not contact the first reed pipe when the first cover and the second cover are engaged with each other.

In some embodiments, when the first cover and the second cover are engaged with each other, the minimum distance between the permanent magnet and the first reed pipe is configured to: when the permanent magnet and the first reed pipe move to the minimum distance from any distance when the first cover body and the second cover body are not buckled, the permanent magnet causes the magnetic flux of the first reed pipe to change by more than the critical triggering magnetic flux of the first reed pipe.

In some embodiments, the detection component comprises:

the convex column is fixedly arranged on the second cover body, and the height direction of the convex column faces to the first cover body; and

the push switch is arranged on the first signal emitter, is connected with the communication driving circuit of the first signal emitter in a wired communication mode, and can trigger the communication driving circuit of the first signal emitter to be switched on when being pressed;

when the first cover body and the second cover body are mutually buckled, the convex column can abut against the pressing type switch.

In some embodiments, the child occupant restraint system further comprises:

the fixing seat is clamped in the inner side cavity of the first cover body, and a limiting column is arranged on the surface facing the outer side of the first cover body;

the first signal emitter is embedded in the limiting column and is attached to the inner wall surface of the first cover body when the fixing seat is arranged in the inner cavity of the first cover body.

In some embodiments, the child occupant restraint system further comprises:

the partition rubber sheet is laid between the first signal emitter and the fixed seat and used for preventing the first signal emitter from electric leakage; and

the starting switch is arranged on one side, close to the first cover body, of the first signal transmitter;

the first cover body is further provided with an opening, so that the starting switch extends out of the outer surface of the first cover body from the opening.

In some embodiments, the first cover body is further provided with a plurality of through holes on a wall surface attached to the first signal emitter, and the through holes are arranged in an annular array with the opening as a center.

In some embodiments, the first cover body includes two symmetrically disposed locking slots, the second cover body includes two symmetrically disposed locking hooks, and the two locking hooks can be oppositely deformed to be locked into or separated from the two locking slots, so that the first cover body and the second cover body are locked with or separated from each other.

In some embodiments, the first cover and the second cover are provided with elongated strap-passing holes for passing the first shoulder strap and the second shoulder strap, respectively, and the first cover and the second cover further include:

the shoulder strap mounting chute is arranged at the outer edge of the through hole, faces the connecting midpoint of the first cover body and the second cover body in the depth direction and penetrates through the first cover body or the second cover body;

wherein the shoulder strap mounting chute divides the outer edge of the strap aperture into a shorter first section and a longer second section, the first section being proximate to a midpoint of connection of the first cover and the second cover.

In some embodiments, the child occupant restraint system the seat belt further comprises:

a safety belt metal buckle; and

a seat belt jack;

wherein the at least one signal emitting component comprises:

and the second signal emitter is fixedly arranged in the safety belt jack and comprises a communication driving circuit, and can send out a preset instruction signal when the connection state between the safety belt metal buckle and the safety belt jack is changed.

In some embodiments, the detection component comprises:

the second reed switch is fixedly arranged on the safety belt jack, is connected with the communication driving circuit of the second signal emitter in a wired communication mode, and can trigger the communication driving circuit of the second signal emitter to be switched on when the switch of the second reed switch is closed;

when the safety belt metal buckle is inserted into the safety belt inserting hole to the bottom, the safety belt metal buckle can increase the magnetic flux of the second reed pipe and achieve a switch closing condition of the second reed pipe.

In some embodiments, the second reed switch, the communication driving circuit of the second signal transmitter, the magnet and the battery are packaged as a separate package, and the separate package is accommodated in the inner cavity of the seat belt jack or attached to the outer side of the seat belt jack.

In some embodiments, the harness further includes a shoulder belt wrap at a force receiving location for restraining a child occupant, the at least one signal emitting assembly including:

the third signal transmitter is arranged in the shoulder belt sleeve, comprises a communication driving circuit and can send out a preset instruction signal when the stress state of the safety belt changes;

the at least one detection element comprises:

and the pressure sensor is arranged in the shoulder belt sleeve and used for measuring the pressure of the safety belt from the child passenger, and is connected with the communication driving circuit of the third signal transmitter in a wired communication mode, and the communication driving circuit can be switched on when the pressure measurement value is in a first pressure range, and can be switched off when the pressure measurement value is not in the first pressure range.

In some embodiments, the seat belt is connected to the seat body by a buckle, the at least one signal emitting assembly comprising:

the fourth signal emitter is arranged on the seat body, is close to the connection part of the safety belt and the seat body or the passing part of the safety belt, comprises a communication driving circuit and can send out a preset instruction signal when the binding state of the safety belt changes;

the at least one detection element comprises:

the tension sensor is arranged at the connection part of the safety belt and the seat body or the passing part of the safety belt and used for measuring the tension of the pull buckle, and the communication driving circuit is connected with the fourth signal transmitter in a wired communication mode and can be switched on when the tension measured value is in a second tension range and switched off when the tension measured value is not in the second tension range.

In some embodiments, the child occupant restraint system is coupled to the vehicle via an ISOFIX connection, the at least one signal transmitting assembly comprising:

the fifth signal transmitter is arranged on the seat body, is close to the connection part of the seat body and the motor vehicle, comprises a communication driving circuit and can send out a preset instruction signal when the connection state between the ISOFIX connector and the motor vehicle is changed;

the at least one detection element comprises:

and the Hall sensor is arranged in the ISOFIX connector, detects the connection state of the ISOFIX connector and the motor vehicle based on the change of magnetic flux, is in wired communication connection with the communication driving circuit of the fifth signal transmitter, can be switched on when the ISOFIX connector is connected with the motor vehicle, and is switched off when the ISOFIX connector is not connected with the motor vehicle.

In some embodiments, the at least one signal emitting component is configured to: when the working state of the child occupant restraint system is not changed in a set mode, the communication driving circuit of the child occupant restraint system is triggered to be switched on, and then the command signal is sent out.

In some embodiments, the at least one signal emitting component is further configured to: after the power supply is started, the power supply is in a power-on dormant state; after the communication driving circuit of the communication driving circuit is switched on and exceeds a second set time length, sending a preset instruction signal; and when the communication driving circuit cannot be reconnected within the first set time length after the command signal is stopped being sent out, the power-on dormant state is entered again.

In some embodiments, the at least one signal transmitting component and the executive terminal are in wireless communication connection based on a bluetooth technology, the instruction signal sent by the at least one signal transmitting component includes a set of preset bluetooth instructions, the bluetooth instructions are compiled according to a bluetooth HID protocol, and when the executive terminal is in bluetooth pairing connection with the at least one signal transmitting component, the bluetooth instructions may trigger the executive terminal to execute a preset operation scheme.

In some embodiments, the at least one signal emitting component is further configured to: sending out a Bluetooth signal after the terminal is started so as to search the execution terminal in a Bluetooth signal receiving range; responding to the password input by the execution terminal, establishing Bluetooth connection with the execution terminal and pairing the execution terminal and the execution terminal; and when no Bluetooth pairing is carried out, when the execution terminal which has established the pairing is in a Bluetooth signal receiving range, automatically connecting with the execution terminal in a Bluetooth mode.

In some embodiments, the at least one signal transmitting component is in wireless communication with the execution terminal through a wireless radio frequency chip, and the wireless radio frequency chip is embedded with an instruction set for controlling the execution terminal to execute a preset operation scheme.

In some embodiments, the executive terminal comprises:

the smart phone or the tablet personal computer is arranged at the back part of a headrest or a backrest of a front seat opposite to the child passenger restraint system, and the Bluetooth is connected with the at least one signal transmitting component and is configured to: when at least one instruction signal is received, playing a preset audio and video file, when at least one instruction signal is interrupted, pausing the playing of the preset audio and video file, and when the instruction signal is re-received within a first set time length after at least one instruction signal is interrupted, continuing to play the preset audio and video file.

In some embodiments, the executive terminal comprises:

the motor vehicle multimedia display screen is connected with the at least one signal transmitting component through Bluetooth, can display detection data of the at least one detection component, and is configured to: when at least one instruction signal is received, playing a preset audio and video file, when at least one instruction signal is interrupted, pausing the playing of the preset audio and video file, and when the instruction signal is re-received within a first set time length after at least one instruction signal is interrupted, continuing to play the preset audio and video file.

In some embodiments, the executive terminal comprises:

a tachograph display wirelessly communicatively coupled to the at least one signal emitting component via a Bluetooth or wireless radio frequency chip and configured to: based on an embedded RTOS system or LINUX system, responding to a received Bluetooth instruction through an embedded playing program, and playing and controlling audio and video prestored in a display of the driving recorder.

In some embodiments, the executive terminal comprises:

the detachable display end can be hooked with a functional part or a vehicle key in a motor vehicle, is connected with the at least one signal transmitting assembly through wireless radio frequency chip communication, and is configured to send out sound, light and vibration alarm information after at least one instruction signal is not received again within a first set time length after at least one instruction signal is interrupted.

In some embodiments, the detachable display end is a handheld alarm terminal, and the handheld alarm terminal further includes a distance determination module configured to send out sound, light and vibration alarm information when the distance between the detachable display end and the at least one signal emitting component exceeds a set distance.

In some embodiments, the at least one signal transmitting element is in wired communication with the at least one detecting element in a one-to-one correspondence, the signal transmitting element is in wireless communication connection with the execution terminal in a one-to-one or one-to-many manner, and one or more execution terminals are configured to: and executing a preset operation scheme according to the corresponding instruction signal.

In some embodiments, the at least one signal transmitting element is in wired communication with the at least one detecting element in a one-to-one correspondence, the at least one signal transmitting element is in wireless communication with the at least one executive terminal in a many-to-one or many-to-many manner, and the executive terminal or terminals are configured to: and executing a preset operation scheme according to the corresponding instruction signals.

Therefore, according to the embodiment of the present disclosure, when the shoulder strap fixator is accurately restrained, the audio/video file is played, and when the shoulder strap fixator is disengaged, the playing of the audio/video file is stopped, so that the infant who takes the child passenger restraint system can form the causal relationship recognition between the child passenger restraint system and the playing of the audio/video file as required, and further develop the habit of taking the child passenger restraint system as required for watching the favorite audio/video file.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

The present disclosure may be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:

FIG. 1 is a schematic front view of a shoulder harness anchor of a child occupant restraint system according to some embodiments of the present disclosure;

FIG. 2 is a schematic illustration of a disassembled structure of a shoulder strap anchor including a reed switch and permanent magnets of a child occupant restraint system according to some embodiments of the present disclosure;

FIG. 3 is a schematic illustration of a configuration of a permanent magnet setting position of a shoulder strap anchor of a child occupant restraint system according to some embodiments of the present disclosure;

FIG. 4 is a schematic view of a shoulder strap anchor of a child occupant restraint system showing the permanent magnet and post spacing in a buckled state according to some embodiments of the present disclosure;

FIG. 5 is a schematic illustration of a disassembled configuration of a shoulder strap anchor including push switches and posts of a child occupant restraint system according to further embodiments of the present disclosure;

FIG. 6 is a schematic illustration of a configuration of a shoulder harness anchor of a child restraint system according to further embodiments of the present disclosure in an assembled state;

FIG. 7 is a schematic illustration of a configuration of a shoulder strap anchor of a child restraint system according to further embodiments of the present disclosure in an assembled state with a second cover;

FIG. 8 is a schematic illustration of a configuration of a first signal emitting assembly of a shoulder strap anchor and a first cover of a child restraint system in an assembled state, according to further embodiments of the present disclosure;

FIG. 9 is a schematic illustration of an assembled state of a first signal transmitting assembly and a mounting block of a shoulder strap anchor of a child restraint system in accordance with further embodiments of the present disclosure;

FIG. 10 is a schematic illustration of a rear view angle of a shoulder belt anchor of a child occupant restraint system according to some embodiments of the present disclosure;

FIG. 11 is a schematic illustration of the relative positions of the shoulder strap mounting chute and the strap aperture of the shoulder strap anchor of the child restraint system according to some embodiments of the present disclosure;

FIG. 12 is a schematic illustration of the first and second shoulder straps of the child restraint system in connection with a shoulder strap anchor according to some embodiments of the present disclosure;

FIG. 13 is a schematic illustration of a metal seat belt buckle in mating connection with a seat belt receptacle of a child restraint system according to some embodiments of the present disclosure;

FIG. 14 is a schematic illustration of a configuration of a metal seat belt buckle of a child restraint system in a disengaged condition with a seat belt receptacle according to some embodiments of the present disclosure;

FIG. 15 is a schematic structural view of a reed switch of a child occupant restraint system according to some embodiments of the present disclosure;

FIG. 16 is a schematic illustration of the positioning of a shoulder belt wrap and a third signal emitter of a child restraint system according to some embodiments of the present disclosure;

FIG. 17 is a schematic illustration of the location of a shoulder belt wrap and pressure sensor of a child occupant restraint system according to some embodiments of the present disclosure;

FIG. 18 is a schematic view of the arrangement of a tab, a tension sensor and a fourth signal emitter of a child occupant restraint system according to some embodiments of the present disclosure;

FIG. 19 is a schematic illustration of the location of an ISOFIX joint and a fifth signal transmitter of a child occupant restraint system according to some embodiments of the present disclosure;

FIG. 20 is a schematic diagram of the placement of the Hall sensor and the fifth signal emitter of a child occupant restraint system according to some embodiments of the present disclosure;

FIG. 21 is a schematic structural view of a hand-held alarm terminal of a child restraint system according to some embodiments of the present disclosure;

in the figure:

1, a safety belt; 11. a first shoulder strap; 12. a second shoulder strap; 2, shoulder belt fixing device; 21, a first cover body; 211, a card slot; 212, a via hole; 22, a second cover body; 221, a hook; 222, a convex column; 223, a permanent magnet; 3, a first signal transmitting assembly; 31, a fixed seat; 311, a limit post; 32, a first signal transmitter; 321, a push switch; 322, a first reed switch; 4, perforating a hole; 41, a shoulder belt mounting chute; 5, a seat body; 61, a safety belt metal buckle; 62, a seat belt receptacle; 63, a second reed switch; 64, a second signal transmitter; 71, shoulder belt sheathing; 72, a third signal emitter; 73, a pressure sensor; 81, pulling a buckle; 82, a tension sensor; 83, a fourth signal emitter; 91, ISOFIX linker; 92, a hall sensor; 93, a fifth signal transmitter; 10, holding the alarm terminal.

It should be understood that the dimensions of the various parts shown in the figures are not drawn to scale. Further, the same or similar reference numerals denote the same or similar components.

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.

The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be intervening devices between the specific device and the first device or the second device. When a particular device is described as being coupled to other devices, that particular device may be directly coupled to the other devices without intervening devices or may be directly coupled to the other devices with intervening devices.

All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

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.

When an infant is traveling in a motor vehicle, the child restraint system should be actively engaged and used in a proper manner according to the relevant safety regulations. However, the applicant researches and discovers that infants generally have good temperament and are difficult to take the child occupant restraint system for a long time, and Chinese infants are used to the arms of parents who nurture the infants, so that the infants are easy to leave the arms of the parents and cry and scream, and particularly, the infants take the child occupant restraint system to resist emotion, so that the experience of carrying the children by the parents for going out is influenced, and potential safety hazards are possibly caused by incorrect taking of the child occupant restraint system.

In view of the above, as shown in fig. 1 to 21: in one aspect of the present disclosure, there is provided a child occupant restraint system comprising:

a seat body 5 detachably connected to a motor vehicle;

a seatbelt 1 connected to the seat body 5 and capable of restraining a child occupant in the seat body 5 in a fastened state;

the detecting component is arranged at the buckling part of the safety belt 1, the stress part of the safety belt 1 for restraining a child passenger, the connection part of the safety belt 1 and the seat body 5 or the passing part of the safety belt 1, and/or the connection part of the seat body 5 and a motor vehicle, and is used for detecting the working state of the child passenger restraining system;

The above-mentioned detecting elements are arranged at different positions on the safety belt 1 or the seat body 5, so as to check the working state of the child occupant restraint system in all directions: the buckling part of the safety belt 1 is related to whether the buckled belt bodies in the safety belt 1 can be separated or not so as to check whether the children have the risk of being separated from the safety belt 1 or not; the stress part of the safety belt 1 for restraining the child passenger is mostly related to the shoulder of the passenger, and the detection component is used for evaluating the stress condition of the safety belt 1; the connection between the seat belt 1 and the seat body 5 or the portion where the seat belt 1 passes through, and the connection between the seat body 5 and the motor vehicle are to ensure the integrity of the fittings of the child occupant restraint system and the stability of the installation.

The execution terminal can comprise terminal types which are fed back forward by children, such as an audio and video player and a toy which can move or make a sound, so that when children take the child passenger restraint system correctly, the playing of audio and video is triggered or the sound of the toy is triggered, the attention of the children is attracted, the children are willing to take the child passenger restraint system actively, when the children cannot take the child passenger restraint system correctly, the playing of the audio and video or the sound of the toy is stopped, the children form the consciousness that the children take the child passenger restraint system correctly and the execution terminal executes a specific operation scheme, and the habit of taking the child passenger restraint system actively can be developed in the past.

Of course, the execution terminal may also include a terminal type that sends out warning information, such as the handheld alarm terminal 10 or an alarm, so that when a problem occurs in the child passenger restraint system, a caregiver is timely notified to check the use condition of the child passenger restraint system, thereby preventing the problem in the future and avoiding the potential safety hazard caused by the improper passenger restraint system.

The communication connection mode between the signal receiving end of the execution terminal and the at least one signal transmitting assembly comprises wireless communication connection and wired communication connection. The wired communication connection mode is low in cost and high in reliability; the wireless communication connection mode enables the signal transmitting assembly and the execution terminal not to be affected by line arrangement, and therefore the wireless communication connection mode is more flexible in arrangement mode, can be suitable for setting various signal transmitting assemblies and execution terminals in positions, and is suitable for different types of execution terminals.

As shown in fig. 1-12, in some embodiments, the harness 1 further comprises:

a first shoulder strap 11;

a second shoulder strap 12; and

a shoulder strap fixer 2, which comprises a first cover body 21 connected with the first shoulder strap 11 and a second cover body 22 connected with the second shoulder strap 12, wherein the first cover body 21 and the second cover body 22 can be mutually buckled and connected;

wherein the at least one signal emitting component comprises:

the first signal transmitter 32 is disposed inside the first cover 21, and includes a communication driving circuit, which can send a preset command signal when the connection state between the first cover 21 and the second cover 22 changes.

As shown in fig. 2-4, in some embodiments, the detecting element comprises:

a convex column 222 fixedly disposed on the second cover 22 and facing the first cover 21 in the height direction;

a permanent magnet 223 fixedly disposed at one end of the convex column 222 close to the first cover 21; and

a first reed switch 322 disposed inside the first cover 21, connected to the communication driving circuit of the first signal transmitter 32 in a wired communication manner, and capable of triggering the communication driving circuit of the first signal transmitter 32 to be turned on when the magnetic flux of the first reed switch reaches a set value;

wherein, when the first cover 21 and the second cover 22 are engaged with each other, the permanent magnet 223 can change the magnetic flux of the first reed pipe 322 to the set value.

In order to prolong the service life of the detecting component, the present disclosure adopts a non-contact detecting component formed by arranging the permanent magnet 223 on the convex column 222 and arranging the first reed pipe 322 inside the first cover 21, thereby reducing the contact wear among the components in the triggering component and improving the stability of state detection.

In some embodiments, the permanent magnet 223 does not contact the first reed pipe 322 when the first cover 21 and the second cover 22 are engaged with each other.

In some embodiments, when the first cover 21 and the second cover 22 are engaged with each other, the minimum distance between the permanent magnet 223 and the first reed pipe 322 is configured to: during the process that the permanent magnet 223 moves to the minimum distance from any distance when the first reed pipe 322 is not buckled with the first cover 21 and the second cover 22, the permanent magnet 223 causes the magnetic flux of the first reed pipe 322 to change by more than the critical triggering magnetic flux of the first reed pipe 322.

The reed pipes with different specifications have different magnetic flux change thresholds, and for the permanent magnet 223 and the reed pipe in some embodiments of the present disclosure, when the magnetic flux density of the permanent magnet 223 is greater than 5 gauss compared with that of the reed pipe, the reed pipe can be triggered to be switched on by the self magnetic field of the reed pipe in the process that the permanent magnet 223 approaches the reed pipe.

In some embodiments, the detection component comprises:

a convex column 222 fixedly disposed on the second cover 22 and facing the first cover 21 in the height direction; and

a push switch 321 disposed on the first signal transmitter 32, connected to the communication driving circuit of the first signal transmitter 32 in a wired communication manner, and capable of triggering the communication driving circuit of the first signal transmitter 32 to be turned on when being pressed;

when the first cover 21 and the second cover 22 are engaged with each other, the protrusion 222 can abut against the pressing switch 321.

The combination of the push switch 321 and the boss 222 realizes the function that the first signal emitter 32 sends the instruction signal when the first cover 21 and the second cover 22 are connected, and stops sending the instruction signal when the first cover 21 and the second cover 22 are separated, thereby realizing the linkage between the correct riding of the child occupant restraint system and the playing behavior of the audio/video player.

In some embodiments, the child occupant restraint system further comprises:

the fixing seat 31 is clamped in the inner cavity of the first cover 21, and a limiting column 311 is arranged on the surface facing the outer side of the first cover 21;

the first signal emitter 32 is embedded in the limiting post 311, and is attached to the inner wall surface of the first cover 21 when the fixing base 31 is disposed in the inner cavity of the first cover 21.

The first signal emitter 32 is mounted between the fixing base 31 and the first cover 21 by the limiting post 311 on the fixing base 31, wherein the limiting post 311 can not only prevent the first signal emitter 32 from swaying between the fixing base 31 and the first cover 21, but also determine the distance between the fixing base 31 and the first cover 21, thereby protecting the signal generator.

In some embodiments, the child occupant restraint system further comprises:

the partition film is laid between the first signal emitter 32 and the fixed seat 31 and used for preventing the first signal emitter 32 from electric leakage; and

the starting switch is arranged on one side of the first signal emitter 32 close to the first cover 21;

the first cover 21 is further provided with an opening, so that the start switch extends out of the outer surface of the first cover 21 from the opening.

The arrangement of the isolating film can prevent the leakage of the signal emitter from damaging the child passenger restraint system and closely contacting the shoulder belt fixer 2, and prevent the liquid from invading the signal emitter to cause damage due to sweating or beverage leakage.

The signal transmitter is provided with a switch, so that the signal generator can be controlled to be in an operating state or a non-operating state, and the signal transmitter is turned off through the switch during the period that the child occupant restraint system is not used, so that the electric quantity is saved, and the longer endurance time is obtained.

In order to facilitate signal output and heat dissipation of the signal emitter located inside the first cover 21, in some embodiments, the first cover 21 further has a plurality of through holes 212 on a wall surface to which the first signal emitter 32 is attached, and the through holes 212 are arranged in an annular array with the opening as a center.

In order to detachably connect the first cover 21 and the second cover 22 to each other, in some embodiments, the first cover 21 includes two symmetrically disposed locking slots 211, the second cover 22 includes two symmetrically disposed locking hooks 221, and the two locking hooks 221 can be deformed toward each other to be locked into or separated from the two locking slots 211, so that the first cover 21 and the second cover 22 can be locked into or separated from each other.

In some embodiments, the first cover 21 and the second cover 22 are respectively provided with elongated strap-passing holes 4 for passing the first shoulder straps 11 and the second shoulder straps 12, and the first cover 21 and the second cover 22 further include:

a shoulder strap mounting chute 41 which is opened at the outer edge of the strap-passing hole 4, faces the connecting midpoint of the first cover body 21 and the second cover body 22 in the depth direction, and penetrates the first cover body 21 or the second cover body 22;

wherein the shoulder strap mounting chute 41 divides the outer edge of the strap aperture 4 into a shorter first section proximate the midpoint of the connection of the first cover piece 21 and the second cover piece 22 and a longer second section.

The shoulder strap mounting chute 41 is convenient for the shoulder strap to be clamped, mounted and detached for use, and has more maneuverability than the traditional shoulder strap fixator 2. And the shoulder belt mounting diagonal groove 41 is inclined toward the shorter first section, so that the shoulder belt is not easily separated from the shoulder belt mounting diagonal groove 41, ensuring the restraining effect of the child occupant restraining system.

As shown in fig. 13-15, in some embodiments, the child occupant restraint system the seat belt 1 further comprises:

a safety belt metal buckle 61; and

a belt insertion hole 62;

wherein the at least one signal emitting component comprises:

and the second signal emitter 64 is fixedly arranged in the seat belt jack 62, comprises a communication driving circuit and can send out a preset instruction signal when the connection state between the seat belt metal buckle 61 and the seat belt jack 62 is changed.

In some embodiments, the detection component comprises:

a second reed switch 63 fixedly disposed in the seat belt jack 62, connected to the communication driving circuit of the second signal transmitter 64 in a wired communication manner, and capable of triggering the communication driving circuit of the second signal transmitter 64 to be turned on when the switch is closed;

wherein when the seat belt metal buckle 61 is inserted into the seat belt insertion hole 62 to the bottom, the seat belt metal buckle 61 can increase the magnetic flux of the second reed pipe 63 and achieve the switch closing condition of the second reed pipe 63.

Whether the metal buckle 61 of the safety belt is inserted into the safety belt insertion hole 62 or not can be judged through the second reed switch 63, so that the safety belt 1 of the child occupant restraint system is correctly inserted in place when a child takes the child occupant restraint system.

To ensure a wired communication connection between the second reed switch 63 and the second signal emitter 64, in some embodiments, the second reed switch 63, the communication drive circuit of the second signal emitter 64, the magnet, and the battery are packaged as a separate package that is housed in the interior cavity of the belt receptacle 62 or is attached to the outside of the belt receptacle 62.

The existing motor vehicle usually only alarms actively about the insertion of the seat belt 1 in the front seat, while the child occupant restraint system needs to be arranged in the rear row of the motor vehicle. In contrast, the independent package attachable to the outside of the seat belt insertion hole 62 according to the present invention may be provided not only outside the seat belt insertion hole 62 of the child occupant restraint system but also outside the insertion hole of the seat belt corresponding to the seat in the rear row of the motor vehicle on which the child occupant restraint system is mounted, so that the inserted state of the seat belt is detected when the motor vehicle seat belt also performs a restraining action on the child and the child occupant restraint system.

As shown in fig. 16 to 17, in some embodiments, the seat belt 1 is further provided with a shoulder belt wrap 71 at a force-receiving portion for restraining a child occupant, and the at least one signal emitting assembly includes:

the third signal emitter 72 is arranged in the shoulder belt sheath 71, comprises a communication driving circuit and can send out a preset instruction signal when the stress state of the safety belt 1 changes;

the at least one detection element comprises:

and a pressure sensor 73 disposed in the shoulder belt wrap 71 for measuring a pressure applied to the seat belt 1 from the child occupant, and connected in wired communication with the communication drive circuit of the third signal transmitter 72, and capable of turning on the communication drive circuit when a pressure measurement value is in a first pressure range and turning off the communication drive circuit when the pressure measurement value is not in the first pressure range.

The shoulder belt wrap 71 is typically provided in the areas where the first and

second shoulder belts

11, 12 of the child restraint system contact the shoulders of the child to provide a softer filler material and a greater contact area with the shoulder belts to improve the comfort of the child using the child restraint system and to reduce the impact on the child during an accident. Therefore, according to the child safety harness, the pressure sensor 73 is arranged in the shoulder harness sheath 71, the contact condition of the shoulder of the child and the shoulder harness is detected continuously, and therefore a preset instruction signal is sent out under the condition that the shoulder harness of the child is unfastened or the shoulder harness falls off, and the like, so that the child or a caregiver is reminded to adjust the use condition of the shoulder harness in time.

As shown in fig. 18, in some embodiments, the seat belt 1 is connected to the seat body 5 by a buckle 81, and the at least one signal emitting assembly comprises:

a fourth signal transmitter 83, which is disposed on the seat body 5, is close to a connection between the seat belt 1 and the seat body 5 or a portion where the seat belt 1 passes through, includes a communication driving circuit, and is capable of sending a preset command signal when a binding state of the seat belt 1 changes;

the at least one detection element comprises:

and a tension sensor 82 which is provided at a portion where the seat belt 1 is connected to the seat body 5 or where the seat belt 1 passes, measures tension of the buckle 81, and is connected to the communication driving circuit of the fourth signal transmitter 83 in a wired communication manner, and is capable of turning on the communication driving circuit when a measured value of the tension is in a second tension range and turning off the communication driving circuit when the measured value of the tension is not in the second tension range.

The second tension range may be set as a normal tension range between the seat belt 1 and the seat body 5, so that when an abnormal connection occurs between the seat belt 1 and the seat body 5 in the child occupant restraint system, or when the child occupant restraint system swings or shakes abnormally, the connection portion between the seat belt 1 and the seat body 5 will bear a larger tension.

Therefore, the tension sensor 82 arranged on the tab 81 detects the tension between the safety belt 1 and the seat body 5, so that abnormal connection between the safety belt 1 and the seat body 5 in the child passenger restraint system can be realized, or a preset instruction signal is sent out when the child passenger restraint system swings abnormally or shakes, so as to remind a child or a caregiver of timely adjusting.

19-20, in some embodiments, the child occupant restraint system is coupled to the vehicle via an ISOFIX joint 91, the at least one signal transmitting assembly comprising:

the fifth signal transmitter 93 is arranged on the seat body 5, is close to the connection part of the seat body 5 and the motor vehicle, comprises a communication driving circuit, and can send out a preset instruction signal when the connection state between the ISOFIX connector 91 and the motor vehicle is changed;

the at least one detection element comprises:

and a hall sensor 92 disposed in the ISOFIX connector 91, detecting a connection state of the ISOFIX connector 91 and the vehicle based on a change in magnetic flux, and being connected to a communication driving circuit of the fifth signal transmitter 93 in wired communication, the communication driving circuit being capable of being turned on when the ISOFIX connector 91 is connected to the vehicle and being turned off when the ISOFIX connector 91 is not connected to the vehicle.

When the metal snap ring on the motor vehicle is embedded into the ISOFIX connector 91, the hall sensor 92 can detect the magnetic flux change caused by the metal snap ring extending into the connector, and then the connector is connected with a communication driving circuit, so that the connection state of the ISOFIX connector 91 and the motor vehicle can be continuously monitored.

The at least one signal transmitting assembly is set to be in an electrified dormant state in a normal state, so that once the corresponding detecting assembly is triggered, the at least one signal transmitting assembly can send out a corresponding instruction signal with higher timeliness, and when the communication circuit cannot be turned on again within a first set time after the instruction signal is stopped being sent out, the at least one signal transmitting assembly enters the electrified dormant state again at the moment and waits for awakening after the detecting assembly is triggered next time.

Further, the applicant researches and discovers that: the technical scheme that the child passenger restraint system is linked with the intelligent terminal is provided in the market at present, and after the intelligent terminal receives a signal sent by the child passenger restraint system, an application program on the intelligent terminal needs to be driven to work, for example, the linkage problem of the intelligent terminal and the child passenger restraint system is solved through an APP (application program) on a mobile phone or a tablet personal computer. However, the current operating system of the intelligent terminal is in the process of continuous upgrading and optimization, so all APP applications pre-deployed on the intelligent terminal need to be correspondingly patched and modified to keep the APP running in a good state all the time. Continuous update of APP applications with the upgrade of the operating system of the smart terminal has become a major pain point for the industry and users.

In view of this, in some embodiments, the at least one signal transmitting component and the executive terminal are connected in wireless communication based on bluetooth technology, the instruction signal sent by the at least one signal transmitting component includes a set of preset bluetooth instructions, the bluetooth instructions are compiled according to a bluetooth HID protocol, and when the executive terminal is connected in bluetooth pairing with the at least one signal transmitting component, the bluetooth instructions may trigger the executive terminal to execute a preset operation scheme.

The Bluetooth connection is used as a close-range wireless communication connection mode, can be applied to the environment of the limited space in the vehicle at low cost and is not easily influenced by the strength of external signals, when the motor vehicle runs in an area with poor network signals, the wireless communication connection between the signal transmitting assembly and the audio/video player can still be stably realized, the realization cost is low, and the range of equipment covered by the installation is wide.

The wireless communication connection between the execution terminal and the at least one signal transmitting assembly adopts a universal Bluetooth connection mode, and a smart phone is taken as an example for explanation: when the smart phone meets the at least one signal emitting assembly which is activated after being electrified for the first time, peripheral Bluetooth can be actively searched, contact is established in a mode of manually inputting a set password, after the first connection is successful, the smart phone can be automatically connected with the at least one signal emitting assembly which is activated after being electrified as long as the Bluetooth function is started, and when the Bluetooth connection between the smart phone and the at least one signal emitting assembly fails, the first Bluetooth connection step is repeated, and the Bluetooth connection between the smart phone and the at least one signal emitting assembly is reestablished.

In some embodiments, the executive terminal comprises:

According to the requirement of the intersection rule, the safety seat of the child can be only arranged on the rear seat of the motor vehicle, so that the audio and video player can be arranged on the back of the headrest or the backrest of the front seat opposite to the child passenger restraint system according to the sitting height of the child.

In a plurality of audio and video player types, the smart phone is preferred, because the smart phone is extremely popular, people can carry the smart phone with them, and Bluetooth is the standard configuration of the current smart phone, so that the implementation cost can be saved. Aiming at the smart phone, a small program can be developed in the mobile phone application with higher popularity, for example, the small program of a WeChat platform, so that the playing of audio and video files is realized, the compatibility problem of different smart phones is avoided, the upgrading of an operating system is avoided, and the maintenance cost is reduced.

The electronic tablet with the Bluetooth receiving function can be used as an upgrading replacement version of the smart phone, the size of a display screen of the electronic tablet is larger, so that a better video effect can be achieved compared with the smart phone, and meanwhile if the electronic tablet is not provided with WeChat, an application program which is not based on the WeChat platform but based on the smart phone can be developed to manage and play audio and video files.

And the Bluetooth audio/video playing instruction compiled based on the Bluetooth HID protocol can realize that the audio/video player triggers the audio/video playing program to start or stop playing the audio/video file, so that the problem that the pre-deployed APP is incompatible with smart phones or computer tablets of different platforms is avoided, the influence of continuous updating of the operating system of the smart phones or computer tablets is avoided, and the always smooth wireless communication connection between the audio/video player and the at least one signal transmitting component is kept.

With the increasing degree of automation and informatization of automobiles, in some embodiments, the execution terminal comprises:

Similarly, in some embodiments, the executive terminal comprises:

The smart phone/tablet personal computer, the motor vehicle multimedia display screen and the automobile data recorder display are used as audio and video players, and the attention of infants is difficult to concentrate for a long time and is sensitive to the response of sound effect videos, so that the infant seat continuously attracts the attention of the infants by playing favorite audio and video files for the infants when taking the child passenger restraint system, so that the infants do not pay attention to get away from the arms of parents or are restrained by the child passenger restraint system, and the infants use the child seats more peacefully.

In addition, if the requirement of releasing the child passenger restraint system is provided by the child, the application stops sending the instruction signal through the detection component arranged at the buckling part of the safety belt 1 and/or the stress part of the safety belt 1 for restraining the child passenger, so that the audio and video playing program stops playing the audio and video files in the playing state. Therefore, the infants can realize the causal relationship between unlocking the safety restraint of the child passenger restraint system and stopping playing of the audio and video files, and at the moment, in order to continuously watch the audio and video files, the children tend to use the child passenger restraint system according to the requirements.

In the past, based on the forward feedback between the behavior of correctly riding the child passenger restraint system and the behavior of playing the audio and video files, the infant can easily form a good trip habit of pleasantly riding the child passenger restraint system: in the traveling process, the child passenger restraint system is actively taken, and the child passenger restraint system is required to be correctly used, so that the safety of the child taking the motor vehicle is ensured, crying and screaming are reduced, and the traveling experience of parents is improved.

For the files played by the audio and video player, besides the cartoon commonly liked by children, the knowledge about safe trip common knowledge and accurate use of the child passenger restraint system can be stored in the audio and video player in advance in the form of the animation which is liked by children. The animation and the safety knowledge can be played alternately, so that the children can keep the interest in the audio and video files and can also receive the safety travel knowledge education under the real scene of travel.

The audio and video files can be stored in the audio and video player in advance, played after receiving a playing instruction, and also can be downloaded from the audio and video platform on line in real time by the audio and video player, wherein the audio and video player has no requirement on network signals, and the audio and video player has a certain network signal intensity requirement, but the selectable audio and video types are richer, so that the audio and video file can better meet the preference of children.

In the using process, the audio/video file can be in a pre-playing state so as to improve the response sensitivity aiming at the detection component. The pre-playing state of the audio/video file means that for different audio/video players, the player needs to enter a playing interface in a specific mode and call out the audio/video file to be played, and the player can enter the playing state when the at least one signal transmitting assembly sends a preset audio/video playing instruction signal.

In the above, from the perspective of the forward feedback formed between the child seat being correctly used and the playing of the audio/video file, the structural form and the implementation principle of the present application are introduced, and it is considered that stopping the playing of the audio/video file may not ensure that the child takes the child seat in a correct manner, so that the present application further considers that the corresponding warning information is sent to the adult caring for the child after the working state of the child occupant restraint system changes.

In some embodiments, the executive terminal comprises:

The detachable display end is a device which is integrated with or fixedly connected with a motor vehicle key, and because of the close connection with the vehicle key, a driver of the motor vehicle can always carry the detachable display end, so that the alarm can be given when the shoulder belt fixer 2 of the child passenger restraint system is disconnected.

Compared with a smart phone, the detachable display end has longer standby time, so that the smart phone can be turned off due to insufficient electric quantity, or the smart phone can be set to be silent, and the alarming capability of sound, light and vibration can be kept, so that the alarming information can be timely transmitted to adults looking after children.

In order to prevent children from being left on the motor vehicle, in some embodiments, the detachable display end is a handheld alarm terminal 10, and the handheld alarm terminal 10 further includes a distance determination module configured to send out sound, light and vibration alarm information when the distance between the detachable display end and the at least one signal emitting component exceeds a set distance.

It should be noted that the wireless receiving end in the embodiment of the present application is classified into three types, a first type of pre-installed bluetooth includes a typical representative including a smart phone/tablet computer (IPAD) and an automobile multimedia display system, a second type of bluetooth is not pre-installed but is embedded with a wireless radio frequency chip, the typical representative includes a detachable display end, and a third type of bluetooth may be pre-installed and may also be embedded with a wireless radio frequency chip including a vehicle data recorder display.

For those skilled in the art, the receiving end and the transmitting end for transmitting and receiving information wirelessly are paired with each other: the receiving end is Bluetooth, and the transmitting end is Bluetooth; the receiving end is a radio frequency chip, and the transmitting end is a radio frequency chip with the same frequency. However, there are various methods for realizing the function of transmitting and receiving information wirelessly, such as infrared transmission and ultrasonic transmission. Two types of wireless transmission methods for transmitting and receiving information are preferred in the present application: bluetooth and wireless radio frequency chip because these two kinds of transmission mode bypass the obstacle can the reinforce, and transmission effect is stable.

Further, when a smart phone or an automobile multimedia display system is selected as the wireless transmission receiving end of the present application, the reason why the bluetooth wireless transmission mode is only preferred is as follows (the following discussion takes the smart phone as an example, and the automobile multimedia display system is similar to the smart phone): when the smart phone is selected as the receiving terminal, the smart phone is a standard product in the general sense and is not allowed to change system components at will, the Bluetooth receiving module is a standard of all smart phones, and in addition, audio and video players provided by a third party, such as Ten-news videos, love art and the like, are pre-installed in the smart phone.

Therefore, the Bluetooth module and the pre-installed audio and video player which are standard and configured on the smart phone can be utilized at lower cost, and the transmitting terminal is set as a Bluetooth protocol version module which is used with the current smart phone mainstream, so that the Bluetooth module and the smart phone can establish the Bluetooth wireless communication capability according to the Bluetooth standard protocol of international communication.

And after bluetooth module communication contact of bluetooth module at least one signal emission subassembly and smart mobile phone standard equipment, how let the audio frequency and video player of pre-installation on the smart mobile phone after being in and preparing the broadcast status, it is just to respond to the control of the audio frequency and video instruction set that the bluetooth transmitting terminal was predetermine the utility model discloses the key of technique.

At present, a general solution is to customize a special control Application (APP) that needs to be installed on the smart phone separately, manage and coordinate communications between the two ends of the transmitting end bluetooth and the receiving end bluetooth through the customized APP, and further implement control of the smart phone according to the transmitting end detection state signal. The APP mode has the disadvantages that frequent maintenance, updating and upgrading are needed to be adapted to the upgrading environment of the operating system of the smart phone, the operation and maintenance cost is high, and the experience that the smart phone cannot be upgraded in time is good and poor.

In view of the above, the technical solution of the present application is: the protocol of Bluetooth HID (Human Interface device), namely the protocol, characteristics and use procedure of Bluetooth in a Human Interface device is adopted. The instruction set is deployed and arranged at a Bluetooth transmitting end, the Bluetooth transmitting end transmits an instruction which accords with a Bluetooth HID (high intensity discharge) protocol to a receiving end of the smart phone according to different state signals detected by the detecting component, and after a Bluetooth module of the smart phone receives the instruction triggered by various detected state signals, the Bluetooth module of the smart phone end calls and triggers an audio and video player of the smart phone end in a preparation state to play preset audio and video through the HID protocol instruction.

In addition, when the smart hand is not selected as the wireless transmission receiving end of the present application, it is necessary to consider a scheme that satisfies more usage scenarios of consumers: and a special intelligent terminal is provided for displaying the detection signal of the detection end and realizing the control function of audio and video.

The hardware cost of adopting a special intelligent terminal is higher than that of adopting a ready-made intelligent mobile phone as a receiving end, and a simple operation system and a display and sound effect driving program are needed to be provided with the special intelligent terminal. For example, a detachable handheld end, a commonly used automobile data recorder display and the like can be optimally designed to have the functions of displaying detection information and sound effect alarm and controlling and playing preset audio and video.

The adoption of the Bluetooth module for wireless transmission and the adoption of the wireless radio frequency chip for realizing the wireless transmission of the electric signals are feasible and have considerable technical stability. The cost of the wireless radio frequency chip technology is lower than that of the Bluetooth module, so the wireless radio frequency chip is taken as a preferred scheme for signal wireless transmission of a special intelligent terminal.

The technical scheme that a Bluetooth module is selected for transmitting the detection signals for a special intelligent terminal and the intelligent mobile phone is adopted as a receiving terminal, the idea of compiling the instruction set scheme conforming to the Bluetooth HID protocol is the same, but the technical scheme of realizing wireless transmission control audio and video playing by adopting a wireless radio frequency chip is different:

the detachable handheld end can be installed in a front row driver position instrument dial area of a motor vehicle (a front row guardian can observe detection data), can also be installed at the rear part of a headrest of a front row seat, is opposite to a rear row passenger (the passenger can watch preset programs but needs to be subjected to detection state control playing), can also be hooked with a motor vehicle key to be taken away (the handheld end has a loss alarm condition), and is very rich in use scenes.

The display end of the automobile data recorder can be installed on a front row rearview mirror of the motor vehicle, a shooting lens at the back of the display end is used for recording road condition data in the front direction of the automobile, the display end of the automobile data recorder can be installed at the back of a headrest of a front row seat to be opposite to a back row passenger, detection data of a chest buckle connection state of a safety belt 1 of the safety seat can be displayed in a switching mode, and a back row child member can watch audio and video programs controlled by the detection state.

Because the detachable handheld end and the display end of the automobile data recorder both adopt the embedded micro operating system and the embedded audio and video storage and playing program, the compiled program is shaped and burnt into the wireless radio frequency chip, the digital display and audio and video storage and playing functions of the management and control terminal are stable, the modification can not be carried out, the use scene is stable, and frequent maintenance and upgrading are not needed.

Under such stable operating scenario conditions. The control commands do not need to be compiled in a bluetooth HID protocol. According to the transmission signal characteristics of the radio frequency, a digital display format required to be achieved by the state detection and the compiling are compiled and the instruction set of the embedded system or the embedded audio and video playing program is controlled, the control playing instruction of the audio and video playing program is deployed at the wireless transmitting end, the playing instruction of the audio and video playing program is deployed at the wireless receiving end through the triggering of the detection signal state, and the control of the wireless digital display and the audio and video playing is realized through the radio frequency chip wireless transmission signal.

In the face of global market, system compatibility is more complex, and in order to reduce the frequency of daily updating and maintenance as much as possible and enable users of wireless receiving ends to have stable experience, the global solution with the best compatibility is realized by adopting an international universal bottom layer transmission mode.

Aiming at the technical problem, the wireless receiving end with the built-in Bluetooth does not need to specially design an APP, but controls the playing of the audio and video through the APP shared by a third party and a more stable bottom layer wireless Bluetooth HID protocol instruction set. The wireless receiving end without the built-in Bluetooth needs to customize an audio and video player and realize the wireless transmission of a control instruction set through a built-in wireless radio frequency chip, and the management system of the wireless receiving end is relatively solidified, so the control instruction set is relatively stable and does not need to be maintained frequently.

The management system is deployed in the wireless receiving end in an embedded manner, which is known as embedded software, and an operating system and driver and audio/video playing tool software are embedded in hardware, and the incidence relation of the management system in the chip industry is embodied as follows: chip design and manufacture → embedded software → embedded electronic device development and manufacture, namely, the compiled system software and tool software are solidified in the chip by burning, and once the test conforms to the set function, the maintenance is not updated any more.

The child restraint system in the above disclosure refers to a device with a belt buckle or a correspondingly flexible member, an adjustment device, a connection device, and an auxiliary device, and which can be placed securely on a motor vehicle. Designed to mitigate injury to the wearer in the event of a vehicle collision accident or sudden deceleration by limiting the movement of the wearer's body;

When the signal transmitting assembly is in one-to-one wireless communication connection with the execution terminal, for example, the shoulder belt fixer 2 is in wireless communication connection with the smart phone, the buckling between the shoulder belts and the linkage of playing audio and video files on the smart phone can be realized; for example, the wireless communication connection between the shoulder strap sheath 71 on the safety belt 1 and the hand-held alarm terminal 10 can realize the linkage between the pressure condition on the shoulder strap and the triggering of the hand-held alarm.

When the signal emitting assembly is wirelessly communicated with the executive terminal in a one-to-many manner, the shoulder belt fixer 2 may be wirelessly communicated with the smart phone and the handheld alarm terminal 10 at the same time, or the shoulder belt sheath 71 on the safety belt 1 may be wirelessly communicated with the smart phone and the handheld alarm terminal 10 at the same time, and the one-to-many and one-to-one executive logic is similar and will not be described herein again.

When the signal transmitters are wirelessly connected to the execution terminal in a many-to-one manner, the wireless communication connections between the audio/video player and the first signal transmitter 32, the second signal transmitter 64, the third signal transmitter 72, and the fourth signal transmitter 83 are taken as an example to further explain:

the audiovisual player may be configured to:

when receiving instruction signals of the first signal transmitter 32, the second signal transmitter 64, the third signal transmitter 72 and the fourth signal transmitter 83, playing a preset audio/video file;

when the instruction signal of the first signal transmitter 32, the second signal transmitter 64, the third signal transmitter 72 or the fourth signal transmitter 83 is interrupted, the playing of a preset audio/video file is suspended;

and when the instruction signal is received again within a first set time length after the instruction signal of the first signal transmitter 32, the second signal transmitter 64, the third signal transmitter 72 or the fourth signal transmitter 83 is interrupted, continuing to play the preset audio/video file.

It can be seen that the audio/video player can continuously play the audio/video file only when the first signal transmitter 32, the second signal transmitter 64, the third signal transmitter 72 and the fourth signal transmitter 83 all transmit the instruction signals, that is, when the shoulder belt fixer 2 of the child occupant restraint system and the plurality of key nodes restraining the seat belt 1 are all in the correct connection state, and the audio/video file can be stopped as long as the signal of one of the signal transmitters is interrupted.

Similarly, in some embodiments, the hand-held alarm terminal 10 may be configured to: and after the instruction signal cannot be received again within a first set time after the instruction signal of the first signal transmitting assembly 3, the second signal transmitting assembly, the third signal transmitting assembly or the fourth signal transmitting assembly is interrupted, sound, light and vibration alarm information is sent.

Furthermore, the signal transmitter may be wirelessly communicatively connected to the execution terminal in a many-to-many manner: two paths of signal transmitting ends of the shoulder belt fixer 2 and the shoulder belt sheath 71 on the safety belt 1 are simultaneously in wireless communication connection with the smart phone and the handheld alarm terminal 10, so that combined application between a detection assembly and an execution terminal is formed.

The seat body 5 of the above disclosure, also referred to simply as a seat, is part of a child occupant restraint system structure that can be seated in a position to accommodate a child;

the seat belt 1 in the above disclosure is a child restraint portion composed of a webbing, a buckle, an adjusting device, and a connecting device;

the first shoulder strap 11 and the second shoulder strap 12 in the above disclosure, which are also referred to as shoulder restraint straps, are webbing straps for restraining the upper torso of the child;

the shoulder belt anchor 2 or the metal buckle and the insertion hole 62 in the above disclosure, which are provided at the fastening portion of the seat belt 1, are also collectively called a buckle, and are means for enabling a child to be restrained by a restraint system or a restraint system to be restrained by a car body structure and to be quickly opened;

the shoulder harness cover 71 of the above disclosure, which is located at a force-receiving portion of the seat belt 1 for restraining a child occupant, may be covered with a webbing, which is a component of a restraint belt having flexibility for transmitting force, and includes a waist belt, a shoulder restraint belt, a crotch restraint belt, a child full-back restraint belt, and a Y-shaped belt. Therefore, the shoulder strap sheath 71 can be specifically arranged on the shoulder restraint strap, and based on this, a person skilled in the art can also correspondingly arrange the waist belt sheath, the crotch sheath, the child restraint strap sheath, the child full-harness restraint strap sheath and the Y-shaped strap sheath according to actual needs.

The buckle 81 of the above disclosure, which is provided at a portion where the seat belt 1 is connected to the seat body 5 or where the seat belt 1 passes, is also referred to as a connecting means, and is a component of a child occupant restraint system, and includes a safety member that can be connected to a vehicle body structure directly or through a vehicle seat to restrain a child stably.

The ISOFIX joint 91 in the above disclosure is provided at a connecting portion between the seat body 5 and the vehicle, and is also called an ISOFIX fixing device, which is a device for connecting a child occupant restraint system to the vehicle in international use. Comprising two rigid attachment points on the vehicle, two corresponding rigid connection means on the child restraint system, and means for limiting the overturning of the child restraint system.

Thus, various embodiments of the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A child occupant restraint system, comprising:

a seat body (5) detachably connected to a motor vehicle;

a seatbelt that is connected to the seat body (5) and is capable of restraining the child occupant within the seat body (5) in the fastened state;

the detecting component is arranged at the buckling part of the safety belt, the stress part of the safety belt for restraining the child passenger, the connection part of the safety belt and the seat body (5) or the passing part of the safety belt, and/or the connection part of the seat body (5) and the motor vehicle, and is used for detecting the working state of the child passenger restraining system;

and the execution terminal comprises a signal receiving end which is connected with the at least one signal transmitting assembly in a communication mode.

2. The child occupant restraint system of claim 1, wherein the seat belt further comprises:

a first shoulder strap (11);

a second shoulder strap (12); and

the shoulder strap fixer (2) comprises a first cover body (21) connected to the first shoulder strap (11) and a second cover body (22) connected to the second shoulder strap (12), and the first cover body (21) and the second cover body (22) can be mutually buckled and connected;

wherein the at least one signal emitting component comprises:

3. The child occupant restraint system of claim 2, wherein the detection assembly comprises:

a convex column (222) which is fixedly arranged on the second cover body (22) and faces the first cover body (21) in the height direction;

the permanent magnet (223) is fixedly arranged at one end, close to the first cover body (21), of the convex column (222); and

the first reed switch (322) is arranged in the first cover body (21), is connected with the communication driving circuit of the first signal transmitter (32) in a wired communication mode, and can trigger the communication driving circuit of the first signal transmitter (32) to be switched on when the magnetic flux of the first reed switch reaches a set value;

wherein the permanent magnet (223) is capable of changing the magnetic flux of the first reed pipe (322) to the set value when the first cover (21) and the second cover (22) are engaged with each other.

4. The child occupant restraint system of claim 3, wherein the permanent magnet does not contact the first reed pipe when the first cover (21) and the second cover (22) are snapped to each other.

5. The child occupant restraint system of claim 4, wherein the minimum spacing of the permanent magnet from the first reed pipe when the first cover (21) and the second cover (22) are snapped into each other is configured to: when the permanent magnet and the first reed pipe move to the minimum distance from any distance when the first cover body (21) and the second cover body (22) are not buckled, the permanent magnet causes the magnetic flux of the first reed pipe to change by more than the critical triggering magnetic flux of the first reed pipe.

6. The child occupant restraint system of claim 2, wherein the detection assembly comprises:

a convex column (222) which is fixedly arranged on the second cover body (22) and faces the first cover body (21) in the height direction; and

the push switch (321) is arranged on the first signal emitter (32), is connected with the communication driving circuit of the first signal emitter (32) in a wired communication mode, and can trigger the communication driving circuit of the first signal emitter (32) to be switched on when being pressed;

when the first cover body (21) and the second cover body (22) are mutually buckled, the convex column (222) can abut against the push type switch (321).

7. The child occupant restraint system of claim 2, further comprising:

the fixed seat (31) is clamped in the inner cavity of the first cover body (21), and a limiting column (311) is arranged on the surface facing the outer side of the first cover body (21);

the first signal emitter (32) is embedded in the limiting column (311) and is attached to the inner wall surface of the first cover body (21) when the fixing seat (31) is arranged in the inner cavity of the first cover body (21).

8. The child occupant restraint system of claim 7, further comprising:

the partition rubber sheet is laid between the first signal emitter (32) and the fixed seat (31) and used for preventing the first signal emitter (32) from leaking electricity; and

the starting switch is arranged on one side, close to the first cover body (21), of the first signal emitter (32);

the first cover body (21) is further provided with an opening, so that the starting switch extends out of the outer surface of the first cover body (21) from the opening.

9. The child restraint system according to claim 8, wherein the first cover (21) is further provided with a plurality of through holes (212) in a wall surface to which the first signal emitter (32) is attached, and the plurality of through holes (212) are arranged in an annular array centered on the opening.

10. The child restraint system according to claim 2, wherein the first cover body (21) includes two symmetrically disposed catching grooves (211), the second cover body (22) includes two symmetrically disposed catching hooks (221), and the two catching hooks (221) can be snapped into or out of the two catching grooves (211) by being deformed in opposite directions so that the first cover body (21) and the second cover body (22) are snapped into or out of each other.

11. A child occupant restraint system according to claim 2, wherein the first cover (21) and the second cover (22) are provided with elongated through-holes (4) for passing the first shoulder belt (11) and the second shoulder belt (12), respectively, the first cover (21) and the second cover (22) further comprising:

a shoulder strap mounting chute (41) which is arranged at the outer edge of the strap-passing hole (4), faces the connecting midpoint of the first cover body (21) and the second cover body (22) in the depth direction and penetrates through the first cover body (21) or the second cover body (22);

wherein the shoulder strap mounting chute (41) divides the outer edge of the strap aperture (4) into a first shorter segment and a second longer segment, the first segment being proximate to the midpoint of the connection of the first cover piece (21) and the second cover piece (22).

12. The child occupant restraint system of claim 1, wherein the seat belt further comprises:

a safety belt metal buckle (61); and

a belt insertion hole (62);

wherein the at least one signal emitting component comprises:

and the second signal transmitter (64) is fixedly arranged in the safety belt jack (62), comprises a communication driving circuit and can send out a preset instruction signal when the connection state between the safety belt metal buckle (61) and the safety belt jack (62) is changed.

13. The child occupant restraint system of claim 12, wherein the detection assembly comprises:

the second reed switch (63) is fixedly arranged on the safety belt jack (62), is connected with the communication driving circuit of the second signal emitter (64) in a wired communication mode, and can trigger the communication driving circuit of the second signal emitter (64) to be switched on when the switch of the second reed switch is closed;

wherein when the safety belt metal buckle (61) is inserted into the safety belt insertion hole (62) to the bottom, the safety belt metal buckle (61) can increase the magnetic flux of the second reed pipe (63) and achieve a switch-closed condition of the second reed pipe (63).

14. The child restraint system of claim 13, wherein the second reed switch (63), the communication drive circuit of the second signal emitter (64), the magnet, and the battery are packaged as a separate package that is received in an interior cavity of the seatbelt buckle (62) or is attached to an exterior side of the seatbelt buckle (62).

15. A child restraint system according to claim 1, wherein the harness is further provided with a shoulder belt wrap (71) at a force receiving location for restraining the child occupant, the at least one signal emitting assembly comprising:

the third signal emitter (72) is arranged in the shoulder belt sheath (71), comprises a communication driving circuit and can send out a preset instruction signal when the stress state of the safety belt changes;

the at least one detection element comprises:

and the pressure sensor (73) is arranged in the shoulder belt sheath (71) and is used for measuring the pressure of the safety belt from the child passenger, and is connected with the communication driving circuit of the third signal transmitter (72) in a wired communication mode, and the communication driving circuit can be switched on when the pressure measurement value is in a first pressure range, and can be switched off when the pressure measurement value is not in the first pressure range.

16. The child occupant restraint system of claim 1, wherein the seat belt is connected to the seat body (5) by a buckle (81), the at least one signal emitting assembly comprising:

the fourth signal emitter (83) is arranged on the seat body (5), is close to the connection between the safety belt and the seat body (5) or the passing part of the safety belt, comprises a communication driving circuit and can send out a preset instruction signal when the binding state of the safety belt changes;

the at least one detection element comprises:

and the tension sensor (82) is arranged at the connection part of the safety belt and the seat body (5) or the passing part of the safety belt and is used for measuring the tension of the pull buckle (81), and the communication driving circuit is connected with the fourth signal transmitter (83) in a wired communication mode and can be switched on when the measured tension value is in a second tension range and switched off when the measured tension value is not in the second tension range.

17. The child occupant restraint system of claim 1, wherein the child occupant restraint system is connected to the motor vehicle by an ISOFIX joint (91), the at least one signal transmitting assembly comprising:

the fifth signal transmitter (93) is arranged on the seat body (5), is close to the connection part of the seat body (5) and the motor vehicle, comprises a communication driving circuit and can send out a preset command signal when the connection state between the ISOFIX connector (91) and the motor vehicle is changed;

the at least one detection element comprises:

and the Hall sensor (92) is arranged in the ISOFIX connector (91), detects the connection state of the ISOFIX connector (91) and the motor vehicle based on the change of magnetic flux, is in wired communication connection with the communication driving circuit of the fifth signal transmitter (93), can be switched on when the ISOFIX connector (91) is connected with the motor vehicle, and is switched off when the ISOFIX connector (91) is not connected with the motor vehicle.

18. The child restraint system of claim 1, wherein the at least one signal transmitting component is wirelessly connected to the executive terminal based on bluetooth technology, and the command signal sent by the at least one signal transmitting component comprises a set of preset bluetooth commands.

19. The child restraint system of claim 1, wherein the at least one signal emitting component is in wireless communication with the actuation terminal via a wireless radio frequency chip.

20. The child occupant restraint system of claim 1, wherein the actuation terminal comprises:

the intelligent mobile phone or the tablet personal computer is arranged at the back part of the headrest or the backrest of the front seat opposite to the child passenger restraint system, and the Bluetooth is connected with the at least one signal transmitting component.

21. The child occupant restraint system of claim 1, wherein the actuation terminal comprises:

the motor vehicle multimedia display screen is connected with the at least one signal transmitting component through Bluetooth and can display the detection data of the at least one detection component.

22. The child occupant restraint system of claim 1, wherein the actuation terminal comprises:

the automobile data recorder display is connected to the at least one signal transmitting assembly through Bluetooth or wireless radio frequency chip wireless communication.

23. The child occupant restraint system of claim 1, wherein the actuation terminal comprises:

the detachable display end can be connected with functional parts or keys in the motor vehicle in a hanging mode and is connected with the at least one signal transmitting assembly through wireless radio frequency chips in a wireless communication mode.

24. The child restraint system of claim 23, wherein the removable display end is a hand-held alarm terminal (10), the hand-held alarm terminal (10) further comprising a distance determination module.

25. The child restraint system of claim 1, wherein the at least one signal emitting element is in wired communication with the at least one detection element in a one-to-one correspondence, and the signal emitting element is in wireless communication with the actuating terminal in a one-to-one or one-to-many manner.

26. The child restraint system of claim 1, wherein the at least one signal emitting element is in wired communication with the at least one detection element in a one-to-one correspondence, and the at least one signal emitting element is in wireless communication with the at least one actuation terminal in a many-to-one or many-to-many manner.