CN210526394U - Vehicle-mounted safety prompt system - Google Patents

Abstract

The utility model provides a vehicle-mounted safety prompting system, which solves the problem that a part of drivers easily forget children on a vehicle when leaving the vehicle and has potential safety hazards, and the key point of the technical scheme is that the vehicle-mounted safety prompting system comprises a pressure sensing device and a detection host, wherein the pressure sensing device comprises a first control module and a pressure sensing module, and the pressure sensing module is used for sending a touch signal and a pressure release signal to the first control module; the detection host is suitable for a driver seat safety belt buckle and comprises a shell, a second control module, a buckle fastening induction module, an indication module and a power supply module; the fastening induction module is used for sending a fastening signal or a tripping signal to the second control module; the second control module is used for driving the indicating module to send out an indicating signal when the tripping signal is received and the pressure release signal is not received. When the driver unlocks the safety belt and the child does not leave the seat, the indicating module sends out an indicating signal to remind the driver that the child still does not leave the seat, and the effect of preventing the child from leaving the car is achieved.

Description

Vehicle-mounted safety prompt system

Technical Field

The utility model relates to an on-vehicle safe technical field especially relates to an on-vehicle safe reminder system.

Background

With the attention of people on personal safety of children in the driving process of automobiles, child safety seats are also increasingly applied to driving of automobiles. The existing safety seat focuses more on the safety protection problem of children in the driving process, for example, the protection effect of the vehicle on the children when the vehicle is collided is enhanced, whether the children are in a seated safety state or not is judged by utilizing an induction device arranged on the safety seat, and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an on-vehicle safe reminder system.

In order to achieve the above object, the present invention provides the following technical solutions:

a vehicle-mounted safety prompt system comprises a pressure sensing device and a detection host, wherein the pressure sensing device is suitable for being installed at a seat cushion part and comprises a first control module and a pressure sensing module, and the pressure sensing module is used for sensing the pressure state of the seat cushion and sending a touch signal and a pressure release signal which respectively represent the touched pressure and the released pressure to the first control module;

the detection host is suitable for being installed on a driver seat safety belt buckle and comprises a shell, a second control module, a buckle fastening induction module, an indication module and a power supply module, wherein the second control module, the buckle fastening induction module, the indication module and the power supply module are accommodated in the shell; the fastening sensing module is used for sensing the fastening state of the connection state of the safety belt buckle and the female buckle and sending a fastening signal or a tripping signal respectively representing the fastening or the separation of the safety belt buckle and the female buckle to the second control module; the second control module is in communication connection with the first control module, and the second control module is used for driving the indicating module to send out a first indicating signal when the second control module receives the tripping signal but does not receive the pressure release signal within a preset time interval.

Further setting: the pressure sensing device comprises a first wireless communication module electrically connected with a first control module, the detection host comprises a second wireless communication module accommodated in a shell of the detection host and electrically connected with a second control module, and the first control module and the second control module are communicated through the wireless communication modules connected with each other.

Further setting: the first control module is used for correspondingly entering an awakening state or a sleeping state when receiving the touch signal or the pressure release signal so as to correspondingly drive the first wireless communication module to enter a working state or a shutdown state, and the first control module comprises a first delay unit which is used for delaying the first control module to enter the sleeping state when receiving the pressure release signal.

Further setting: the first control module comprises a first control unit and a first timing unit which are electrically connected with each other, the first timing unit is used for respectively and correspondingly entering an awakening state or a sleeping state when the pressure sensing module is touched or released, and the first control module is used for periodically entering the awakening state according to a preset time interval of the first timing unit so as to drive the first wireless communication module to enter a working state.

Further setting: the second control module is used for correspondingly entering a wakeup state or a sleep state when receiving the fastening signal or the tripping signal so as to correspondingly drive the second wireless communication module and the indication module to enter a working state or a shutdown state, and the second control module further comprises a second delay unit which is used for delaying the second control module to enter the sleep state when the safety belt buckle is separated from the female buckle.

Further setting: the second control module comprises a second control unit and a second timing unit which are electrically connected with each other, the second timing unit is used for respectively and correspondingly entering a wake-up state or a sleep state when the safety belt buckle and the female buckle are fastened or released, and the second control module is used for periodically entering the wake-up state according to a preset time interval of the second timing unit so as to drive the second wireless communication module and the indicating module to enter a working state.

Further setting: the detection host comprises a matching control module, the matching control module is electrically connected with the second control module and is used for sending a matching request signal to the second control module, and the second control module is used for responding to the matching request signal and processing, matching and storing the communication signal received by the second wireless communication module.

Further setting: the first control module comprises a first control unit and a first electric quantity detection unit, the first electric quantity detection unit is used for detecting electric quantity information of the pressure sensing device, the first control unit is used for sending the electric quantity information detected by the first electric quantity detection unit to the second control module, and the second control module is used for driving the indicating module to send a second indicating signal when the electric quantity of the pressure sensing device is lower than a preset value.

Further setting: the second control module comprises a second control unit and a second electric quantity detection unit, the second electric quantity detection unit is used for detecting the electric quantity information of the detection host and sending the electric quantity information to the second electric quantity detection unit, and the second control unit is used for driving the indication module to send a third indication signal when the electric quantity of the detection host is lower than a preset value.

Further setting: the second control module is used for responding to the touch signal and driving the indicating module to send out a fourth indicating signal, and the second control module is also used for responding to the pressure release signal and driving the indicating module to send out a fifth indicating signal.

Further setting: the indicating module comprises a sounder, the detection host comprises a mute control module, the mute control module is electrically connected with the second control module and is used for sending a mute request signal or a sounding request signal to the second control module, and the second control module responds to the mute request signal or the sounding request signal and sends a corresponding control instruction to drive the sounder to enter a mute state or a sounding state.

Further setting: the pressure sensing module comprises a bottom plate and a plurality of sensing contacts arranged on the bottom plate according to a preset pattern.

Further setting: the buckle induction module comprises a reed pipe and a magnet, and the magnet is used for magnetizing the safety belt buckle when the safety belt buckle is inserted into the female buckle so as to close the reed pipe.

Further setting: the fastening induction module comprises an infrared induction module, a Hall switch or a capacitance type proximity switch.

Further setting: the shell is internally provided with a circuit board, and the second control module, the fastening induction module, the indication module and the power supply module are electrically connected with the circuit board.

Further setting: the shell comprises a surface cover and a bottom shell which are mutually covered, and the bottom shell is suitable for being connected with the safety belt female buckle so as to realize that the detection host is arranged on the safety belt female buckle; the button induction module comprises a reed switch and a magnet, and the reed switch and the magnet are connected to one side of the circuit board facing the bottom shell.

Further setting: one side of the bottom shell, which is far away from the face cover, protrudes from the top end of the bottom shell to form a limiting part, and the limiting part can be hooked on the top end face of the safety belt female buckle when the detection host is installed on the safety belt female buckle.

Further setting: one side of the bottom shell close to the face cover is recessed relative to the limiting part to form a containing groove for containing the reed pipe and the magnet.

Further setting: the power module comprises a battery, the face cover corresponds to the battery, the battery is provided with a replacing opening for replacing the battery, and the replacing opening is provided with a blocking cover which can be detachably connected with the face cover.

Further setting: the inner wall of the replacing opening is provided with a stop block, and the stop cover is provided with a locking block which can be inserted into the replacing opening and is clamped with the stop block after rotation.

Compared with the prior art, the utility model discloses a scheme has following advantage:

1. the utility model relates to an among the on-vehicle safety prompt system, through taking corresponding installation detection host computer and forced induction device on the carrier at safety belt driver's seat and children respectively, when the driver unties the safety belt, buckle response module senses the safety belt buckle and breaks away from with the box, it sends tripping signal to second control module, if child passenger does not leave forced induction device this moment, second control module does not receive the pressure release signal, second control module orders about indicating module this moment and sends first indicating signal, with suggestion driver children still do not leave the seat, reached and prevented that children from being left over the effect in the car.

2. The utility model relates to an among the on-vehicle safety prompt system, the detection host computer realizes awaking up and sleeping of second wireless communication module and suggestion module through the knot of the fastener of response safety belt buckle and dropout, great reduction the consumption of electric quantity, similarly, the pressure-sensitive device realizes awaking up and sleeping of first wireless communication module through judging the contact state of pressure-sensitive module, such setting up makes the electric quantity duration that detects host computer and pressure-sensitive device stronger, and it is more convenient when starting, need not artificial operation.

3. In the vehicle-mounted safety prompting system, when the pressure sensing module is in a pressed state, the first timing unit in the pressure sensing module is awakened, and the first wireless communication module is periodically awakened by the first control unit according to the time interval set by the first timing unit so as to periodically send a pressing signal to the detection host; similarly, when the safety belt buckle and the female buckle are in a buckle fastening state, a second timing unit in the host is detected to wake up, and the second control unit periodically wakes up the indicating module and the second wireless communication module according to a time interval set by the second timing unit so as to enter a signal receiving state; through the arrangement, the working time of each module in the detection host and the pressure sensing device is greatly reduced, the power consumption is reduced, and the cruising ability of the detection host and the pressure sensing device is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic block diagram of an embodiment of the present invention;

fig. 2 is an exploded schematic view of a detection host according to an embodiment of the present invention;

fig. 3 is an installation diagram of the inspection host according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a pressure sensing device according to an embodiment of the present invention;

fig. 5 is a schematic flow chart illustrating an application of the detection host and the pressure sensing device according to an embodiment of the invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1, the utility model provides a vehicle-mounted safety prompt system, which comprises a pressure sensing device 1 and a detection host 2. The pressure sensing device 1 is suitable for being mounted on a carrier for a child to sit on, for example, a child safety seat integrated with the safety seat, and can also be directly and independently mounted on a car seat to sense the sitting state of a child. The detection host machine 2 is suitable for being installed on a driver seat safety belt female buckle 3 so as to sense the fastening connection condition of a safety belt buckle 4 of a driver seat and the female buckle 3.

The pressure sensing device 1 comprises a first control module 11, a pressure sensing module 12 and a power supply module 14 for supplying power to the pressure sensing device 1, wherein the pressure sensing module 12 is used for sensing a pressure state and sending a touch pressure signal and a pressure release signal which respectively represent a touched pressure and a released pressure to the first control module 11.

The detection host machine 2 comprises a shell 21, a second control module 22, a fastening induction module 23, an indication module 24 and a power supply module, wherein the second control module 22, the fastening induction module 23, the indication module 24 and the power supply module are accommodated in the shell 21. In the present embodiment, the indication module 24 includes a sound generator and an indication lamp 241, and the sound generator specifically includes a buzzer 242. In other embodiments, the indication module 24 may further include a display screen for prompting in the form of a visible element such as a word or a pattern.

The fastening sensing module 23 is configured to sense a fastening state of the connection state of the seat belt buckle 4 and the female buckle 3 and send a fastening state signal representing the fastening state to the second control module 22, where the fastening state signal includes a fastening signal or a release signal representing fastening or releasing of the seat belt buckle 4 and the female buckle 3; the second control module 22 is communicatively connected to the first control module 11, and the second control module 22 is configured to drive the indication module 24 to send a first indication signal when it receives the trip signal but does not receive the voltage release signal within the preset time interval. Preferably, the preset time interval is set to 0 second, and in other embodiments, the preset time interval may also be modified according to actual needs. In this embodiment, the first indication signal is that the buzzer 242 continuously sounds for 20s, and the indicator light 241 emits red light to blink. The specific prompting time length and form of the buzzer 242 and the indicator light 241 can be changed according to actual conditions.

Through corresponding installation detection host computer 2 and pressure-sensitive device 1 on safety belt driver's seat and children take the carrier respectively, when the driver unties the safety belt, buckle sensing module 23 senses safety belt buckle 4 and box 3 break away from, and it sends the trip signal to second control module 22, if children's passenger does not leave pressure-sensitive device 1 this moment, second control module 22 has not received the pressure release signal, and second control module 22 orders about instruction module 24 this moment and sends first instruction signal to indicate that driver's children still do not leave the seat, has reached the effect that prevents children and has left over in the car. The safety belt fastening of the driver is one of the necessary driving specifications for safe driving, so that the safety belt unfastening before the driver leaves the vehicle is used as a trigger condition, a prompt signal is sent out when the child does not leave the seat, so that the child is prevented from being left in the vehicle, the technical means can ensure that the child cannot be left in the vehicle under the condition that the driver follows the driving specifications, a great guarantee effect can be achieved for the child, and for the driver, in order to prevent the child from being left in the vehicle when the driver leaves the vehicle, a good driving habit needs to be maintained, a good supervision effect can be achieved for the driver, and the common driving safety of the driver and a child passenger is further ensured.

Further, the detection host 2 includes a second wireless communication module received in the housing 21 and electrically connected to the second control module 22, the pressure sensing device 1 includes a first wireless communication module electrically connected to the first control module 11, and the first control module 11 and the second control module 22 communicate with each other through the wireless communication modules connected to each other. Specifically, the first wireless communication module and the second wireless communication module are a first antenna 13 and a second antenna 27, respectively. Preferably, the first antenna 13 is a transmitting antenna, and the second antenna is a receiving antenna, that is, the pressure sensing device 1 and the detection host 2 are in one-way communication connection, so that power consumption can be reduced. In other embodiments, the detection host 2 and the pressure sensing device 1 may be directly electrically connected through a wire.

In the present embodiment, the power supply module 14 is a first non-replaceable button cell, and the power supply module is a second replaceable button cell 26.

The detection host 2 comprises a mute control module 25, the mute control module 25 is electrically connected with the second control module 22 and is used for sending a mute request signal or a sounding request signal to the second control module 22, and the second control module 22 responds to the mute request signal or the sounding request signal and sends a corresponding control instruction to drive the sounder to enter a mute state or a sounding state.

The mute control module 25 can send a mute request signal or a sound generation request signal to the second control module 22 to enable the sound generator to enter a mute state or a sound generation state, so that a more flexible choice is provided for a user, and the trouble of sound to the user is avoided.

In this embodiment, when the second control module 22 receives the fastening signal, the second control module 22 sends a control command to the sound generator to make the sound generator enter a sound generating state. That is, when the seat belt buckle 4 is connected to the female buckle 3 each time, the buzzer 242 enters the sounding state by default, so as to prevent the indicating module 24 from giving an indication well when the driver leaves the seat and leaving the child in the vehicle.

The first control module 11 is further configured to correspondingly enter an awake state or a sleep state when receiving the touch signal or the pressure release signal, so as to correspondingly drive the first wireless communication module to enter the working state or the shutdown state, where the first control module 11 includes a first delay unit configured to delay the first control module from entering the sleep state when receiving the pressure release signal.

When the pressure sensing module 12 is pressed, the first control module 11 wakes up to enable the first wireless communication module to enter a signal sending state, when the pressure sensing module 12 is released, sufficient time is provided for the first wireless communication module to send a pressure release signal under the delay action of the first delay unit, the first control module 11 enters a sleep state after sending is finished, the first wireless communication module enters a shutdown state and does not send signals any more, the electric quantity consumption of the pressure sensing device 1 is reduced, and the cruising ability of the pressure sensing device is improved.

Further, the first control module 11 includes a first control unit and a first timing unit electrically connected to each other, the first timing unit is configured to respectively and correspondingly enter an awake state or a sleep state when the pressure sensing module 12 is pressed or released, and the first control unit is configured to periodically awake and drive the first wireless communication module to enter a working state according to a preset time interval of the first timing unit.

The first timing unit plays a timing role, when the pressure sensing module 12 is in a touch state, the first timing unit enters a working state, when the pressure sensing module 12 is in a pressure release state, the first timing module enters a sleep state, and the first control unit can wake up the first wireless communication module periodically according to a preset time interval under the action of the first timing unit, so that the working time of the first wireless communication module is reduced, and the cruising ability of the pressure sensing device 1 is further improved.

In this embodiment, the wake-up time interval of the first wireless communication module is 10 minutes, the specific time interval can be set according to actual needs, and the wake-up time interval can also be in a non-completely periodic form, such as waking up the first wireless communication module after 2 seconds and 5 minutes after the pressure sensing module 12 is pressed, and then entering a 10-minute periodic wake-up mode.

Similarly, the second control module 22 is configured to correspondingly enter a wake-up state or a sleep state when it receives the buckle fastening signal or the trip signal, so as to correspondingly drive the second wireless communication module and the indication module to enter the working state or the shutdown state, and the second control module 22 further includes a second delay unit configured to delay the second control module 22 from entering the sleep state when the seat belt buckle 4 is disengaged from the female buckle 3.

Further, the second control module 22 includes a second control unit and a second timing unit electrically connected to each other, the second timing unit is configured to respectively and correspondingly enter an awake state or a sleep state when the seat belt buckle 4 and the female buckle 3 are fastened or released, and the second control module 22 is configured to periodically enter the awake state according to a preset time interval of the second timing unit, so as to drive the second wireless communication module and the indication module to enter the working state.

Similar to the pressure sensing device 1, the detection host 2 can realize the functions of waking up and sleeping according to the fastening condition of the safety belt, and when the safety belt is in the fastening connection condition, the second control unit can wake up periodically under the action of the second timing unit so as to enable the indication module 24 and the second wireless communication module to enter the working state, thereby realizing the function of reducing the electric quantity consumption and improving the cruising ability of the detection host 2.

Specifically, in the present embodiment, when the seat belt buckle 4 and the female buckle 3 are in the fastening condition, the wake-up period of the detection host 2 is 800ms, wherein the wake-up time is 10ms, the sleep time is 790ms, and accordingly, the duration of the touch signal or the pressure release signal sent by the pressure sensing device 1 is 1 s. That is, when the pressure sensing device 1 sends a touch signal or a pressure release signal, the signal can be received by the second wireless communication module of the detection host 2. In other embodiments, the time length of the wake-up period of the detection host 2 and the time length of the signal sent by the pressure sensing device 1 can be modified and adjusted according to actual situations.

Further, the detection host 2 further includes a matching control module, the matching control module is electrically connected to the second control module 22 and configured to send a matching request signal to the second control module 22, and the second control module 22 responds to the matching request signal and processes, matches and stores the communication signal received by the second wireless communication module.

The user can send the matching request signal to second control module 22 through matching control module, second control module 22 awakens up second wireless communication module afterwards in order to get into the signal reception state, the user is through exerting pressure in the pressure-sensitive device 1 that treats the matching, pressure-sensitive device 1 sends out the touch signal, second control module 22 receives this touch signal through second wireless communication module, store after handling the matching, can avoid detecting host computer 2 and receive the influence of the signal that unmatched pressure-sensitive device 1 sent in the in-process of received signal through such setting, cause the condition of wrong report.

Preferably, when the second control module 22 receives the matching request signal, the second control module 22 automatically clears the pre-stored matching information. With this arrangement, each time the user performs matching between the detection host 2 and the pressure-sensitive device 1, the detection host 2 can automatically erase the previous matching information and store new matching information. Further, the detection host 2 can be matched with a plurality of pressure sensing devices 1 at the same time.

Preferably, when the second control module 22 determines that the wake-up duration of the second wireless communication module is longer than a preset duration and the second control module 22 does not receive the touch signal or the fastening signal, the second control module 22 sends a sleep control instruction to the second wireless communication module to enable the second wireless communication module to enter a sleep state.

When the user makes the detection host 2 enter the matching state through the matching control module, but the touch signal cannot be received within a certain time, the detection host 2 enters the sleep state, and the power consumption is reduced.

Further, the first control module 11 includes a first electric quantity detection unit, the first electric quantity detection unit is configured to detect electric quantity information of the pressure sensing device 1, the first control unit is configured to send the electric quantity information detected by the first electric quantity detection unit to the second control module 22, and the second control module 22 is configured to drive the indication module 24 to send a second indication signal when the electric quantity of the pressure sensing device 1 is lower than a preset value.

Similarly, the second control module 22 includes a second electric quantity detection unit, the second electric quantity detection unit is configured to detect the electric quantity information of the detection host 2 and send the electric quantity information to the second electric quantity detection unit, and the second control unit is configured to drive the indication module 24 to send a third indication signal when the electric quantity of the detection host 2 is lower than a preset value.

When the power of the host 2 and the pressure sensing device 1 is detected to be too low, the second control module 22 sends a control instruction to the indication module 24 to drive the indication module to send a second or third indication signal, so as to remind a user to take a countermeasure in time.

Further, the second control module 22 is configured to actuate the indication module 24 to send out a fourth indication signal in response to the touch signal, and is further configured to actuate the indication module 24 to send out a fifth indication signal in response to the pressure release signal.

Specifically, in the present embodiment, since the second wireless communication module is in the shutdown state when the seat belt buckle 4 is in the disengaged state with the female buckle 3, that is, the detection host 2 cannot receive the signal sent by the pressure sensing device 1 at this time. When the safety belt buckle 4 and the female buckle 3 are in a buckle connection state, and when the pressure sensing module 12 is pressed or released, the first control module 11 correspondingly sends a pressing signal or a releasing signal to the second control module 22, and the second control module 22 drives the indicating module 24 to send a corresponding fourth or fifth indicating signal in response to the pressing signal or the releasing signal. When a child sits on or leaves the seat, the detection host machine 2 can send out a corresponding fourth or fifth indication signal to convey the sitting state of the child to a driver, so that the driving safety of the child can be better concerned, and the potential safety hazard of the child in the riding process can be reduced.

Preferably, the first control module is configured to determine whether a duration of receiving the touch signal or the pressure release signal is greater than a preset duration, and send the touch signal or the pressure release signal to the second control module 22 when the duration is greater than the preset duration. In this embodiment, the preset time period is set to two seconds, and the specific set time period can be modified as required.

Through the arrangement, the pressure sensing device 1 can send the touch signal or the pressure release signal to the detection host only after the touch signal or the pressure release signal is received for a specified time, so that the phenomenon of false alarm of the detection host caused by the fact that a child passively leaves the seat cushion in a short time due to vehicle shake in the driving process can be prevented. Specifically, when the pressure sensing module 12 releases the pressure after the pressure application time is not more than two seconds, or when the pressure release time from the pressure application state is not more than two seconds, the detection host 2 does not issue the alarm.

In the present embodiment, the buckle sensing module 23 specifically includes a magnetic induction module, which includes a reed pipe 231 and a magnet 232, and the magnet 232 is used for magnetizing the seat belt buckle 4 when the seat belt buckle 4 is inserted into the female buckle 3, so as to close the reed pipe 231. In this embodiment, the magnet 232 is also used to conduct the reed switch 231 slightly. Since the conduction of the reed switch 231 depends on the intensity of the surrounding magnetic field, the reed switch 231 needs to be dried by a sufficiently strong magnetic field to conduct. Obviously, the distance between the reed pipe 231 and the magnetic field influences the conduction effect of the reed pipe 231, the magnet 232 and the reed pipe 231 are arranged at a certain gap distance, the magnetic field intensity formed by the magnet 232 enables the reed pipe 231 to be conducted slightly but not completely, the buckle 4 is inserted into the female buckle 3 again, namely, when the buckle 4 is close to the magnet 232, the magnet 232 magnetizes the buckle 4, the magnetic field generated by the buckle 4 and the magnetic field intensity generated by the magnet 232 are superposed, the closing of the reed pipe 231 is realized, and a corresponding circuit is conducted, so that whether the safety belt buckle 4 is inserted into the fastening state information in the safety belt female buckle 3 or not can be detected.

In other embodiments, the fastening sensing module 23 may further include an infrared sensing module, a hall switch or a capacitive proximity switch, and may also sense a fastening state of the seat belt buckle 4 and the female buckle 3 by determining a pressure of the seat belt buckle inserted into the female buckle. Foretell infrared induction module, its theory of operation specifically are through the infrared sensing probe transmission infrared ray of its setting, and the infrared ray passes safety belt buckle 4 and inserts the route to box 3, and when safety belt buckle 4 was connected with box 3, the infrared ray received and sheltered from to judge safety belt buckle 4 and box 3 and be in the lock state, otherwise, when the infrared ray did not receive and shelter from, then judge safety belt buckle 4 and box 3 and be in the off-state. The working principle of the Hall switch is that the magnet is arranged on the safety belt buckle 4, the Hall switch is arranged on the female buckle 3, and when the safety belt buckle 4 is buckled with or separated from the female buckle 3, the Hall switch detects the level change after detecting the magnetic field, so that whether the safety belt buckle 4 and the female buckle 3 are in a buckling state or not is judged. The working principle of the capacitive proximity switch is that when the safety belt buckle 4 is close to or far away from the capacitive proximity switch, the dielectric constant of the capacitor changes, so that the capacitance changes, the circuit state of the detection host machine 2 changes, and the fastening state of the safety belt buckle 4 and the female buckle 3 is judged.

Referring to fig. 2 and 3, in the present embodiment, the housing 21 includes a front cover 211 and a bottom cover 212, and the detection host 2 further includes a circuit board 28 disposed in the housing 21. The surface cover 211 and the bottom case 212 are detachably covered with each other, specifically, a plurality of elastic blocks 2123 are arranged on the inner side wall of the bottom case 212, and a clamping groove 2116 for the elastic blocks 2123 to be embedded and fixed is arranged on the outer side wall of the surface cover 211, and the elastic blocks 2123 and the clamping groove 2116 are matched, so that the assembly and disassembly are more convenient and faster. In other embodiments, the cover 211 and the bottom housing 212 may be connected by a screw connection.

The face cover 211 is provided with a switch key 29 electrically connected with the circuit board 28, and the switch key 29 can be used for controlling the awakening or sleeping of the detection host machine 2. It should be noted that the detection host 2 can be awakened by two modes, namely, the connection between the seat belt buckle 4 and the female buckle 3 and the pressing of the switch button 29. Further, the switch button 29 is also set to realize mute control of the buzzer 242 when it is pressed for a long time. Preferably, the mute control of the buzzer 242 is realized after long pressing of the switch key 29 for 3 seconds. Further, the switch is also configured to match the detection main body 2 with the pressure sensing device 1 after being pressed for multiple times, and preferably, the switch key 29 is continuously pressed for 5 times to detect that the main body 2 enters a matching state so as to receive a signal sent by the pressure sensing device 1 to match.

In the present embodiment, the second antenna 27, the second button battery 26, the indicator light 241, the buzzer 242, the reed pipe 231, and the magnet 232 are connected to the circuit board 28. Specifically, the reed switch 231 and the magnet 232 are connected to a side of the circuit board 28 facing the bottom case 212, and the second antenna 27, the second button cell 26, the indicator light 241 and the buzzer 242 are mounted on a side of the circuit board 28 away from the magnet 232. Through setting up tongue tube 231 and magnet 232 in the one side that is close to drain pan 212, be favorable to reducing the horizontal distance of tongue tube 231 and magnet 232 and safety belt buckle 4, improve and detect the precision.

Further, a limiting portion 2121 capable of hooking the top end of the female buckle 3 is formed at one end of the bottom case 212 far from the surface cover 211. One side of the bottom case 212 close to the surface cover 211 is recessed relative to the limiting portion 2121 to form a receiving groove 2122 for receiving the reed pipe 231 and the magnet 232, and the reed pipe 231 and the magnet 232 are mounted in the receiving groove 2122 with a gap. In this embodiment, the side of the bottom case 212 away from the surface cover 211 is used for being adhesively fixed on the outer wall of the female buckle 3.

The limiting part 2121 is disposed outside the bottom case 212, and when the detection host 2 is mounted on the female buckle 3, the limiting part 2121 can be hooked on the top end of the female buckle 3, so that the connection stability is improved, and the detection host 2 is prevented from falling off. In addition, the accommodating groove 2122 can accommodate the reed switch 231 and the magnet 232, so that the size of the detection host 2 is reduced, the distances between the reed switch 231 and the magnet 232 and the safety belt female buckle 3 can be reduced, and the detection sensitivity is improved.

In this embodiment, the surface cover 211 is provided with a light hole 2111 through which the light emitting element can transmit light, and a light transmitting plate 2112 is installed at the light hole 2111. In other embodiments, the cover 211 may be entirely made of a light-transmissive material. In this embodiment, the second antenna 27 is wound to form a multi-turn coil.

In this embodiment, a replacement opening 2113 for replacing the battery is provided at a position of the surface cover 211 corresponding to the installation position of the battery, and a blocking cover 2114 detachably connected to the surface cover 211 is provided at the replacement opening 2113. A stop block 2115 is arranged on the inner wall of the replacement opening 2113, and a locking block 21141 which can be inserted into the replacement opening 2113 and is connected with the stop block 2115 after rotation is arranged on the blocking cover 2114.

Preferably, a limiting protrusion is protruded from the stop block 2115, and a limiting groove into which the limiting protrusion can be inserted is formed on the locking block 21141. By means of the matching of the limiting protrusion and the limiting groove, the connecting position of the stop block 2115 and the locking block 21141 is limited, so that the relative movement and dislocation between the stop block 2115 and the locking block 21141 are not easy to occur, and the connecting strength of the stop cover 2114 and the surface cover 211 is improved.

Referring to fig. 4, in the present embodiment, the pressure sensing module 12 includes a bottom plate 121 and a plurality of sensing contacts 122 disposed on the bottom plate 121 and arranged according to a preset pattern. The sensing contact area can be increased by using a plurality of sensing contacts 122, so that the children can more uniformly sit on the sensing contacts 122.

Preferably, an operation slot 21142 is formed in a side of the blocking cover 2114 away from the bottom shell 212, and the operation slot 21142 is specifically a straight slot. The operation slot 21142 can facilitate the operator to use a tool to rotate the blocking cover 2114, so that the operation is more labor-saving and convenient.

The utility model also provides an on-vehicle safe suggestion method of adopting above-mentioned on-vehicle safe reminder system, including following step:

when the pressure sensing module 12 is pressed or released, the pressure sensing module 12 sends a corresponding pressing signal or a corresponding releasing signal to the second control module 22 through the first control module 11; when the fastening sensing module 23 senses that the safety belt buckle 4 is separated from the female buckle 3, the fastening sensing module sends a tripping signal to the second control module 22; if the second control module 22 receives the trip signal but does not receive the voltage release signal within the preset time interval, the second control module 22 sends a control command to the indication module 24 to drive the indication module to send a first indication signal.

Further, when the pressure sensing device 1 includes a first wireless communication module, and the first control module receives a touch signal or a pressure release signal, the first control module correspondingly enters a wake-up state or a sleep state, and drives the first wireless communication module to correspondingly enter a working state or a shutdown state.

Further, when the first control module 11 includes a first control unit and a first timing unit, and when the first control unit receives a touch signal or a pressure release signal, the first control module sends a corresponding wake-up command or sleep command to the first timing unit, and the first control module periodically enters a wake-up state according to a preset time interval of the first timing unit, and correspondingly drives the first wireless communication module to enter a working state.

Further, when the detection host 2 includes a second wireless communication module and the second control module 22 receives a buckle signal or a trip signal, the second control module correspondingly enters a wake-up state or a sleep state, and drives the second wireless communication module and the indication module 24 to enter a working state or a shutdown state.

Further, when the second control module 22 includes a second control unit and a second timing unit, and when the second control unit receives a buckle signal or a trip signal, the second control unit sends a corresponding wake-up command or sleep command to the second timing unit, and the second control module 22 periodically enters a wake-up state according to a preset time interval of the second timing unit, and drives the second wireless communication module and the indication module 24 to enter a working state.

Further, when the detection host 2 includes a matching control module, and the matching control module sends a matching request signal to the second control module 22, the second control module 22 enters an awake state after receiving the matching request signal and drives the second wireless communication module to enter a working state, the pressure sensing module sends a touch signal through the first wireless communication module after being touched, and the second control module 22 receives the touch signal through the second wireless communication module and then performs matching processing and storage, so as to implement signal matching between the pressure sensing device 1 and the detection host 2.

Further, when the pressure sensing module 12 is pressed or released, it sends a corresponding pressing signal or a corresponding releasing signal to the second control module 22 through the first control module 11, and the second control module 22 drives the indicating module 24 to send a corresponding fourth indicating signal or a corresponding fifth indicating signal in response to the pressing signal or the releasing signal.

Further, the method is carried out. When the detection host 2 includes the sounder and the mute control module 25, and the mute control module 25 sends the mute request signal or the sound request signal to the second control module 22, the second control module 22 responds to the mute request signal or the sound request signal and sends a corresponding control instruction to the sounder, and drives the sounder to correspondingly enter the mute state or the sound state.

Referring to fig. 5, an application flow diagram of the detecting main unit 2 and the pressure sensing device 1 is as follows, in this application flow, the pressure sensing device 1 is installed on a seat, and receives sensing through a seat key installed on the seat, and it should be noted that one detecting main unit 2 can be matched with a plurality of pressure sensing devices 1. When the safety belt is buckled, the detection host machine 2 is awakened, after electric quantity detection, a scanning mode is entered, and at the moment, the detection host machine 2 can receive a touch pressure signal and a pressure release signal sent by the pressure sensing device 1 and respectively corresponds to the closing and opening of the seat keys. When the safety belt is loosened, the detection host machine 2 enters a scanning mode to receive signals sent by the pressure sensing devices 1 on all seats, if the signals that the seat keys are opened are not received, the current state of the seat is recorded as sitting down, or if the detection host machine 2 receives the signals that the seat keys are closed, a child retention prompt is sent under the two conditions. If the detection host machine 2 does not receive the signal sent by the seat within 11 minutes after the safety belt is loosened, the sleeping state is automatically entered, namely the sleeping state. If the detection host machine 2 receives signals that all seat buttons are turned on within 11 minutes of the loosening of the safety belt, the sleep state is automatically entered. Alternatively, when the seat belt is released, it is detected that all the seat buttons recorded by the host machine 2 are in the open state, that is, the seat state is in the off state, and the seat belt automatically enters the sleep state.

The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (20)

1. The utility model provides a vehicle-mounted safety prompt system, includes forced induction device and detection host computer, characterized by:

the pressure sensing device is suitable for being installed at the position of a seat cushion and comprises a first control module and a pressure sensing module, wherein the pressure sensing module is used for sensing the pressure state of the seat cushion and sending a touch signal and a pressure release signal which respectively represent the touched pressure and the released pressure to the first control module;

the detection host is suitable for being installed on a driver seat safety belt buckle and comprises a shell, a second control module, a buckle fastening induction module, an indication module and a power supply module, wherein the second control module, the buckle fastening induction module, the indication module and the power supply module are accommodated in the shell; the fastening sensing module is used for sensing the fastening state of the connection state of the safety belt buckle and the female buckle and sending a fastening signal or a tripping signal respectively representing the fastening or the separation of the safety belt buckle and the female buckle to the second control module; the second control module is in communication connection with the first control module, and the second control module is used for driving the indicating module to send out a first indicating signal when the second control module receives the tripping signal but does not receive the pressure release signal.

2. The vehicle-mounted safety prompting system according to claim 1, characterized in that: the pressure sensing device comprises a first wireless communication module electrically connected with a first control module, the detection host comprises a second wireless communication module accommodated in a shell of the detection host and electrically connected with a second control module, and the first control module and the second control module are communicated through the wireless communication modules connected with each other.

3. The vehicle-mounted safety prompting system according to claim 2, characterized in that: the first control module is used for correspondingly entering an awakening state or a sleeping state when receiving the touch signal or the pressure release signal so as to correspondingly drive the first wireless communication module to enter a working state or a shutdown state, and the first control module comprises a first delay unit which is used for delaying the first control module to enter the sleeping state when receiving the pressure release signal.

4. The vehicle-mounted safety prompting system according to claim 3, characterized in that: the first control module comprises a first control unit and a first timing unit which are electrically connected with each other, the first timing unit is used for respectively and correspondingly entering an awakening state or a sleeping state when the pressure sensing module is touched or released, and the first control module is used for periodically entering the awakening state according to a preset time interval of the first timing unit so as to drive the first wireless communication module to enter a working state.

5. The vehicle-mounted safety prompting system according to claim 2, characterized in that: the second control module is used for correspondingly entering a wakeup state or a sleep state when receiving the fastening signal or the tripping signal so as to correspondingly drive the second wireless communication module and the indication module to enter a working state or a shutdown state, and the second control module further comprises a second delay unit which is used for delaying the second control module to enter the sleep state when the safety belt buckle is separated from the female buckle.

6. The vehicle-mounted safety prompting system according to claim 5, characterized in that: the second control module comprises a second control unit and a second timing unit which are electrically connected with each other, the second timing unit is used for respectively and correspondingly entering a wake-up state or a sleep state when the safety belt buckle and the female buckle are fastened or released, and the second control module is used for periodically entering the wake-up state according to a preset time interval of the second timing unit so as to drive the second wireless communication module and the indicating module to enter a working state.

7. The vehicle-mounted safety prompting system according to claim 2, characterized in that: the detection host comprises a matching control module, the matching control module is electrically connected with the second control module and is used for sending a matching request signal to the second control module, and the second control module is used for responding to the matching request signal and processing, matching and storing the communication signal received by the second wireless communication module.

8. The vehicle-mounted safety prompting system according to claim 1, characterized in that: the first control module comprises a first control unit and a first electric quantity detection unit, the first electric quantity detection unit is used for detecting electric quantity information of the pressure sensing device, the first control unit is used for sending the electric quantity information detected by the first electric quantity detection unit to the second control module, and the second control module is used for driving the indicating module to send a second indicating signal when the electric quantity of the pressure sensing device is lower than a preset value.

9. The vehicle-mounted safety prompting system according to claim 1, characterized in that: the second control module comprises a second control unit and a second electric quantity detection unit, the second electric quantity detection unit is used for detecting the electric quantity information of the detection host and sending the electric quantity information to the second electric quantity detection unit, and the second control unit is used for driving the indication module to send a third indication signal when the electric quantity of the detection host is lower than a preset value.

10. The vehicle-mounted safety prompting system according to claim 1, characterized in that: the second control module is used for responding to the touch signal and driving the indicating module to send out a fourth indicating signal, and the second control module is also used for responding to the pressure release signal and driving the indicating module to send out a fifth indicating signal.

11. The vehicle-mounted safety prompting system according to claim 1, characterized in that: the indicating module comprises a sounder, the detection host comprises a mute control module, the mute control module is electrically connected with the second control module and is used for sending a mute request signal or a sounding request signal to the second control module, and the second control module responds to the mute request signal or the sounding request signal and sends a corresponding control instruction to drive the sounder to enter a mute state or a sounding state.

12. The vehicle-mounted safety prompting system according to claim 1, characterized in that: the pressure sensing module comprises a bottom plate and a plurality of sensing contacts arranged on the bottom plate according to a preset pattern.

13. The vehicle-mounted safety prompting system according to claim 1, characterized in that: the buckle induction module comprises a reed pipe and a magnet, and the magnet is used for magnetizing the safety belt buckle when the safety belt buckle is inserted into the female buckle so as to close the reed pipe.

14. The vehicle-mounted safety prompting system according to claim 1, characterized in that: the fastening induction module comprises an infrared induction module, a Hall switch or a capacitance type proximity switch.

15. The vehicle-mounted safety prompting system according to claim 1, characterized in that: the shell is internally provided with a circuit board, and the second control module, the fastening induction module, the indication module and the power supply module are electrically connected with the circuit board.

16. The vehicle-mounted safety prompting system according to claim 15, characterized in that: the shell comprises a surface cover and a bottom shell which are mutually covered, and the bottom shell is suitable for being connected with the safety belt female buckle so as to realize that the detection host is arranged on the safety belt female buckle; the button induction module comprises a reed switch and a magnet, and the reed switch and the magnet are connected to one side of the circuit board facing the bottom shell.

17. The vehicle-mounted safety prompting system according to claim 16, characterized in that: one side of the bottom shell, which is far away from the face cover, protrudes from the top end of the bottom shell to form a limiting part, and the limiting part can be hooked on the top end face of the safety belt female buckle when the detection host is installed on the safety belt female buckle.

18. The vehicle-mounted safety prompting system according to claim 17, characterized in that: one side of the bottom shell close to the face cover is recessed relative to the limiting part to form a containing groove for containing the reed pipe and the magnet.

19. The vehicle-mounted safety prompting system according to claim 15, characterized in that: the power module comprises a battery, the face cover corresponds to the battery, the battery is provided with a replacing opening for replacing the battery, and the replacing opening is provided with a blocking cover which can be detachably connected with the face cover.

20. The vehicle-mounted safety prompting system according to claim 19, characterized in that: the inner wall of the replacing opening is provided with a stop block, and the stop cover is provided with a locking block which can be inserted into the replacing opening and is clamped with the stop block after rotation.

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