CN105539344A - Early warning system for recognizing whether child is mistakenly locked in automobile or not - Google Patents
Early warning system for recognizing whether child is mistakenly locked in automobile or not Download PDFInfo
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- CN105539344A CN105539344A CN201510962829.4A CN201510962829A CN105539344A CN 105539344 A CN105539344 A CN 105539344A CN 201510962829 A CN201510962829 A CN 201510962829A CN 105539344 A CN105539344 A CN 105539344A
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- 230000005484 gravity Effects 0.000 claims abstract description 37
- 238000012544 monitoring process Methods 0.000 claims description 29
- 230000008447 perception Effects 0.000 claims description 29
- 230000002463 transducing effect Effects 0.000 claims description 24
- 238000012360 testing method Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 239000010409 thin film Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000005059 dormancy Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000001427 coherent effect Effects 0.000 claims description 3
- 239000010408 film Substances 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 4
- 230000036760 body temperature Effects 0.000 description 2
- 206010019345 Heat stroke Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008131 children development Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q5/00—Arrangement or adaptation of acoustic signal devices
Abstract
The invention discloses an early warning system for recognizing whether a child is mistakenly locked in an automobile or not. The early warning system is used for preventing the situation that the child is mistakenly locked in the automobile and an accident occurs. The system comprises a gravity sensing cushion and a main early warning machine. The gravity sensing cushion is placed on a child seat or other seats and internally provided with a gravity sensor, and whether the child sits on the cushion or not is judged by sensing the gravity borne by the cushion. The main early warning machine is installed in the proper position below an automobile instrument desk and connected with signal lines of an automobile central lock, a side door switch, a start switch, a double-flash switch and a horn switch. The state of the automobile start switch, the state of the side door switch and the state of the central lock are monitored through the main early warning machine in real time, a signal indicating whether the child is in the automobile or not is obtained from the gravity sensing cushion through a Bluetooth module, and according to the signal and the states, a logical judgment is made, and an early warning is given according to the condition that the child is mistakenly locked in the automobile.
Description
Technical field
The invention belongs to safe early warning technical field, more specifically say, relate to a kind of forewarn system identified in child car locking.
Background technology
Along with increasing of automobile quantity, popularizing of home-use car, uses relevant accident also to get more and more to vehicle.In recent years, have careless father and mother all over the world by forgetting baby in car, what cause infant to die unexpectedly reported for work.Infant is locked in alone in car, owing to not possessing sense of self-protection and ability, easily meets accident.Especially in summer, airtight be exposed to the sun under, in car transient temperature can reach 60 more spend.Because child development is complete, in the rising of its body temperature, body, the speed of moisture loss is fast more than adult, and its respiratory system and temperature capacity are also not so good as adult, therefore in " boxcar " inner very easily generation " thermoplegia ".This disease refers to the body temperature regulatory function imbalance that Yin Gaowen causes, and intimate heat is excessively put aside, thus initiation nervous organ is impaired, until dead.In addition, children are locked in alone overlong time in car, in car oxygen depleted after cause body anoxic, cause tragedy of death to occur.Passenger protection system by bus in the market, mainly for chaufeur and adult-passenger, does not prevent device or the system of lock by mistake in Carriage for baby.But infant was reported in media again and again by lethal accident in mistake car locking in recent years.Although probability of occurrence is not high, once occur to bring destructive destruction to the family of party concerned.Therefore, the great attention with car father and mother must be caused, avoid the generation of above-mentioned dangerous situation.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of forewarn system identified in child car locking is provided, judge whether in child car locking by gravity perception cushion and early warning main frame two devices, there is simple, the easy realization of structure, high reliability, and the feature of low cost.
For achieving the above object, a kind of forewarn system identified in child car locking of the present invention, is characterized in that, comprising: gravity perception cushion and early warning main frame;
On the child seat that described gravity perception cushion is positioned over automobile or other seat, the gravity whether bearing particular range above cushion is detected by built-in weight sensor, judge whether this seat has children according to the size of bearing gravity again, if seat has children, then sensor signal is transferred to early warning main frame by bluetooth module;
Described early warning main frame is installed on the correct position under Auto Instrument desk, is connected with motor central lock signal wire (SW), starting switch ACC signal wire (SW), door contact interrupter signal wire (SW), two wink signal line and audible warning line; After early warning main frame receives transducing signal, judge whether in child car locking according to starting switch ACC signal condition, central controlled lock signal condition and door contact interrupter signal condition, if had, then start the early warning of child lock, connect automobile double-flashing modulating signal line and audible warning line, send sound and light alarm, prompting car owner children are by car locking.
Wherein, described gravity perception cushion comprises:
One sensor, is made up of thin film resistor pressure sensor and testing circuit; Described thin film resistor pressure sensor contact is evenly distributed on the force-bearing surfaces of cushion, and when cushion is by when coming from outside pressure, film contact produces deformation, causes corresponding resistance change; Be preset with the resistance value scope that the weight range of all common children is corresponding in described testing circuit, according to testing circuit detection resistance value whether within the scope of this, judged whether children's ride-on, then transducing signal is sent to microcontroller 1;
One microcontroller 1, for running the monitoring facilities of gravity perception cushion, and the signal of Real-Time Monitoring sensor, and control bluetooth module 1 to early warning Host Transfer signal;
One bluetooth module 1, for realizing and setting up blue tooth wireless communication, to its transmission sensor signal between early warning main frame.
Described early warning main frame comprises:
One bluetooth module 2, for realizing and setting up blue tooth wireless communication between early warning main frame, receives the sensor signal that it is sent;
One microcontroller 2, for running the monitoring facilities of early warning main frame, the state of monitoring bluetooth module 2 sensor-lodging and the automobile coherent signal line by the input of output/output module, has judged whether in child car locking, and has taked corresponding early warning action;
One input/output module, is connected with the corresponding signal wire (SW) of automobile, comprises multichannel input and output interface; Obtained the state of associated vehicle signal wire (SW) by input interface, then the state of each signal wire (SW) is inputed to microcontroller 2; Performed the output command of microprocessor 2 by output interface, control corresponding vehicle signal line and turn on and off, start or reset early warning action.
Further, the monitoring flow process of described microcontroller 1 is:
(2.1), microcontroller 1 read sensor signal, when transducing signal state is " 0 ", then represent in non-perception car have children, when transducing signal state is " 1 ", then represents and perceive in car and have children, then enter step (2.2);
(2.2), to judge between bluetooth module 1 and bluetooth module 2 whether UNICOM's early warning main frame, if UNICOM, send sensor signal to early warning main frame, and perform step (2.3); If non-UNICOM, then perform step (2.4);
(2.3), judge the state of transducing signal if transducing signal state is " 0 ", then to perform step (2.5); If transducing signal state is " 1 ", then perform step (2.7);
(2.4), judge the state of transducing signal if transducing signal state is " 0 ", then to perform step (2.5); If transducing signal state is " 1 ", then perform step (2.6);
(2.5), keep bluetooth module dormancy, then perform step (2.7);
(2.6), microcontroller 1 sends open command, wakes bluetooth module 1 UNICOM early warning main frame up, then sends sensor signal to early warning main frame, then performs step (2.7);
(2.7), after the timer time, step (2.1) is returned.
Further, the monitoring flow process of described microcontroller 2 is:
(3.1), to judge between bluetooth module 1 and bluetooth module 2 whether UNICOM, if UNICOM, then perform step (3.2); If non-UNICOM, then perform step (3.3);
(3.2), read and judge sensor signal, if sensor signal state is " 0 ", representing Che Nei without children, then performing step (3.10); If sensor signal state is " 1 ", then representing Che Nei has children, then perform step (3.4);
(3.3), start bluetooth module 2 UNICOM bluetooth module 1, then perform step (3.10);
(3.4), microcontroller 2 by bluetooth module 2 receive bluetooth module 1 send transducing signal after, perform step (3.5);
(3.5), microcontroller 2 reads and judges central controlled lock signal, if central controlled lock is in unlocking condition, then performs step (3.10); If central controlled lock is in blocking, then perform step (3.6);
(3.6), microcontroller 2 reads and judges starting switch ACC signal, if starting switch ACC closes, then represents automobile flame-out, and performs step (3.7); If starting switch ACC connects, represent inserted automobile key and go out, then perform step (3.10);
(3.7), microcontroller 2 exports central controlled lock unlock instruction, connects central controlled lock unlocking signal line, perform unlock operation, then perform step (3.8) by input/output module;
(3.8), microcontroller 2 reads and judges car door signal, reads car door signal line states, if all closing of the doors, then performs step (3.9); If there is car door opening, then perform step (3.10);
(3.9), microcontroller 2 early warning start export two to dodge, audible warning, by input/output module, connect two flashing light and audible warning line, carry out sound and light alarm, then perform step (3.10);
(3.10), after the timer time, step (3.1) is returned.
Goal of the invention of the present invention is achieved in that
A kind of forewarn system identified in child car locking of the present invention, meets accident for preventing infant from being locked in automobile by mistake.This system comprises: gravity perception cushion and early warning main frame two devices; Gravity perception cushion is placed on child seat or other seat, is built-in with weight sensor, bears gravity, judged whether children by perception cushion; Alarm host machine is arranged on the correct position under Auto Instrument desk, is connected with the signal wire (SW) of motor central lock, side door switch, starting switch, two flash switch and horn switch; By the state of early warning main frame Real-Time Monitoring automobile starting switch, door contact interrupter and central controlled lock, and by bluetooth module, obtain whether there be the signal of children in car, according to these signal conditions from gravity perception cushion, make Logic judgment, then early warning is carried out to the situation in child car locking.Present system structure simply, easily realizes, and used signal easily gathers, reliably, be a kind of easy popularization, low cost and high reliability carriage for children in without lock forewarn system.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation identifying the forewarn system in child car locking of the present invention;
Fig. 2 is the monitoring diagram of circuit of microcontroller in the gravity perception cushion shown in Fig. 1;
Fig. 3 is the monitoring facilities diagram of circuit of microcontroller in the early warning main frame shown in Fig. 1;
Fig. 4 is the module type selecting pictorial diagram in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described, so that those skilled in the art understands the present invention better.Requiring particular attention is that, in the following description, when perhaps the detailed description of known function and design can desalinate main contents of the present invention, these are described in and will be left in the basket here.
Embodiment
Fig. 1 is a kind of structural representation identifying the forewarn system in child car locking of the present invention.
In the present embodiment, as shown in Figure 1, a kind of forewarn system identified in child car locking of the present invention, comprising: A gravity perception cushion and B early warning main frame;
Wherein, A gravity perception cushion comprises: A1 sensor, A2 battery, A3 microcontroller, A4 bluetooth module;
A1 sensor, is made up of thin film resistor pressure sensor and testing circuit; Thin film resistor pressure sensor contact is evenly distributed on the force-bearing surfaces of cushion, and when cushion is by when coming from outside pressure, film contact produces deformation, causes corresponding resistance change; Be preset with the resistance value scope that the weight range of all common children is corresponding in testing circuit, according to testing circuit detection resistance value whether within the scope of this, judged whether children's ride-on, then transducing signal is sent to A1 microcontroller;
A2 battery, in A gravity perception cushion, each submodule is powered;
A3 microcontroller, for running the monitoring facilities of A gravity perception cushion, and Real-Time Monitoring sensor signal, and control A4 bluetooth module is to B early warning Host Transfer signal;
A4 bluetooth module, for realizing and setting up blue tooth wireless communication, to its transmission sensor signal between B early warning main frame.
On the child seat that above-mentioned A gravity perception cushion is positioned over automobile or other seat, the gravity whether bearing particular range above cushion is detected by built-in weight sensor, judge whether this seat has children according to the size of bearing gravity again, if seat has children, then sensor signal is transferred to B early warning main frame by A4 bluetooth module.
Wherein, as shown in Figure 1, early warning main frame comprises: B1 bluetooth module, B2 microcontroller and B3 input/output module.
B1 bluetooth module, for realizing and setting up blue tooth wireless communication between B early warning main frame, receives the sensor signal that it is sent;
B2 microcontroller, for running the monitoring facilities of B early warning main frame, the state of monitoring B1 bluetooth module sensor-lodging and the automobile coherent signal line by the input of B3 output/output module, has judged whether in child car locking, and has taked corresponding early warning action;
B3 input/output module, is connected with the corresponding signal wire (SW) of automobile, comprises multichannel input and output interface; Obtained the state of associated vehicle signal wire (SW) by input interface, then the state of each signal wire (SW) is inputed to B2 microcontroller; Performed the output command of B2 microprocessor by output interface, control corresponding vehicle signal line and turn on and off, start or reset early warning action.
In the present embodiment, B early warning main frame can be installed on the correct position under Auto Instrument desk, be connected with motor central lock signal wire (SW), starting switch ACC signal wire (SW), door contact interrupter signal wire (SW), two wink signal line and audible warning line; After B early warning main frame receives transducing signal, judge whether in child car locking according to starting switch ACC signal condition, central controlled lock signal condition and door contact interrupter signal condition, if had, then start the early warning of child lock, connect automobile double-flashing modulating signal line and audible warning line, send sound and light alarm, prompting car owner children are by car locking.
Fig. 2 is the monitoring diagram of circuit of microcontroller in the gravity perception cushion shown in Fig. 1.
In the present embodiment, as shown in Figure 2, the monitoring flow process of A3 microcontroller is:
SA0, startup monitoring, start monitoring by the source switch on gravity perception cushion, then perform step SA1;
SA1, reading tactility apparatus signal, wherein signal condition " 0 " (low level input) represents in non-perception car have children, and 1 (high level input) represents to perceive in car have children; Then step SA2 is performed;
SA2, judge whether UNICOM's early warning main frame, if UNICOM, then perform step SA3; If non-UNICOM, then perform step SA4;
SA3, to early warning main frame send sensor signal 0 or 1, then perform step SA5;
SA4, judge sensor signal: if 0, then perform step SA6; If 1, then perform step SA7;
SA5, judge sensor signal, if 0, then perform step SA6; If 1, then perform step SA8;
SA6, bluetooth module dormancy: judge without children on cushion, make bluetooth module dormancy, reduces power consumption, then performs step SA8;
SA7, wake bluetooth module UNICOM early warning main frame up, wake the bluetooth module of dormancy up, set up wireless telecommunications with early warning main frame, preparing for sending sensor signal, then performing step SA8;
Step SA1 is returned after SA8, time delay certain hour; Delay time determines the time that monitoring facilities completes a scanning period, can set as required.
Fig. 3 is the monitoring facilities diagram of circuit of microcontroller in the early warning main frame shown in Fig. 1.
In the present embodiment, as shown in Figure 3, the monitoring flow process of B2 microcontroller is:
SB0; Start monitoring, start monitoring by early warning host power switch, then perform step SB1; Early warning main frame is powered by automobile power source;
SB1, judge whether UNICOM's gravity perception cushion, if set up blue tooth wireless communication with cushion, then perform step SB2; If non-UNICOM, then perform step SB3;
SB2, reading judge sensor signal, if the sensor signal passed back by bluetooth module is 0, represents Che Nei without children, then perform step SB10; If 1, representing Che Nei has children, then perform step SB4;
SB3, startup bluetooth module UNICOM gravity perception cushion, attempt setting up blue tooth wireless communication with gravity perception cushion, then perform step SB10;
SB4, reading judge central controlled lock signal, read the state of central controlled lock signal wire (SW), if 0 (low level), represent central controlled lock and be in unlocking condition, then perform step SB10; If 1 (high level), represents central controlled lock blocking, then perform step SB5;
SB5, reading judge starting switch ACC signal, read the state of automobile starting switch ACC signal wire (SW), if 0 (low level), represent automobile ACC power-off, automobile is flame-out, then perform step SB6; If 1 (high level), represent automobile ACC power connection, inserted automobile key goes out, then perform step SB10;
SB6, output central controlled lock unlocking signal, by the output interface of input/output module, connect central controlled lock unlocking signal line, perform unlocking action, stop the lock operation of car owner, then perform step SB7;
SB7, reading judge car door signal, read car door signal line states, if 1 (high level), represent all closing of the doors, then perform step SB8; If 0 (low level), representative has car door opening, then export step SB9;
SB8, early warning start the two sudden strain of a muscle of output, audible warning, by the output interface of input/output module, connect two sudden strain of a muscle and audible warning line, carry out sound and light alarm, then return step SB7;
SB9, early warning reset and turn off two sudden strain of a muscle, audible warning, by the output interface of input/output module, turn off two sudden strain of a muscle and audible warning line, stop sound and light alarm, then execution step SB10;
Step SB1 is returned after SB10, time delay certain hour; Delay time determines the time that monitoring facilities completes a scanning period, can set as required.
As shown in Figure 4, be module type selecting pictorial diagram in the embodiment of the present invention.
In the present embodiment, the present invention is realized by such as lower module.
A1 sensor: the RF-03 seat sensor module (as Fig. 4 is left) selecting the sharp Qi Electronics Co., Ltd. of Yuyao City, the sensor contact of this sensor assembly can be evenly distributed on cushion force-bearing surfaces, when the pressure from outside experienced by cushion, energizing signal will be produced.By the adjustment to this sensor assembly internal detection circuitry, can when the pressure belonging to children's weight range being detected, export energizing signal, the form of energizing signal is relay switch signal: open and indicate children's ride-on, turns off and indicates without children's ride-on.
Microcontroller: Core51822 (B) module (as in Fig. 4) selecting Wei Xue Electronics Co., Ltd. of Shenzhen, this module builds based on Bluetooth system level chip (SoC) nRF51822 of NordicSemiconductor (Northern Europe semiconductor company).Except the Bluetooth transmission function possessing super low-power consumption, nRF51822 inside is also integrated with 32 ARMCortexM0 treaters and abundant IO interface, can realize the integrated of Bluetooth transmission in gravity perception cushion and early warning main frame and microcontroller.The present embodiment adopts two pieces of Core51822 (B) modules, and one piece, for A gravity perception cushion, realizes the function of A1 bluetooth module and A3 microcontroller; Another block is used for B early warning main frame, realizes the function of B1 bluetooth module and B2 microcontroller.
B3 input/output module, as shown in Fig. 4 left side, be that four-way switch amount input four-way switch amount exports, the wherein state (high level or low level) of vehicle signal line that will be attached thereto of On-off signal passage, after opto-coupler chip isolation, input to B2 microcontroller; Output switch parameter passage then performs the output command of B2 microcontroller, by relay, drives the vehicle signal line be attached thereto.In the present invention, input channel needs to connect motor central lock block signal line, door contact interrupter signal wire (SW) and starting switch ACC signal wire (SW), and wherein door contact interrupter signal wire (SW) way is different because vehicle model is different; Delivery channel needs to connect motor central lock unlocking signal line, two wink signal line and audible warning line, and totally 3 tunnels export.The present embodiment adopts two pieces of input/output modules as shown in Fig. 4 left side, totally 8 tunnel input and 8 road delivery channels, is wherein the reserved 4 way switch amount input channels of door contact interrupter signal wire (SW).In early warning main frame actual installation process, voltage test pencil or multi-meter can be utilized, below instrument desk, search relevant signal wire (SW), specifically can with reference to the mounting list of all kinds of car alarm.
Although be described the illustrative detailed description of the invention of the present invention above; so that those skilled in the art understand the present invention; but should be clear; the invention is not restricted to the scope of detailed description of the invention; to those skilled in the art; as long as various change to limit and in the spirit and scope of the present invention determined, these changes are apparent, and all innovation and creation utilizing the present invention to conceive are all at the row of protection in appended claim.
Claims (5)
1. identify the forewarn system in child car locking, it is characterized in that, comprising: gravity perception cushion and early warning main frame;
On the child seat that described gravity perception cushion is positioned over automobile or other seat, the gravity whether bearing particular range above cushion is detected by built-in weight sensor, judge whether this seat has children according to the size of bearing gravity again, if seat has children, then sensor signal is transferred to early warning main frame by bluetooth module;
Described early warning main frame is installed on the correct position under Auto Instrument desk, is connected with motor central lock signal wire (SW), starting switch ACC signal wire (SW), door contact interrupter signal wire (SW), wink signal line and audible warning line; After early warning main frame receives transducing signal, judge whether in child car locking according to starting switch ACC signal condition, central controlled lock signal condition and door contact interrupter signal condition, if had, then start the early warning of child lock, connect automobile double-flashing modulating signal line and audible warning line, send sound and light alarm, prompting car owner children are by car locking.
2. a kind of forewarn system identified in child car locking according to claim 1, is characterized in that, described gravity perception cushion comprises:
One sensor, is made up of thin film resistor pressure sensor and testing circuit; Described thin film resistor pressure sensor contact is evenly distributed on the force-bearing surfaces of cushion, and when cushion is by when coming from outside pressure, film contact produces deformation, causes corresponding resistance change; Be preset with the resistance value scope that the weight range of all common children is corresponding in described testing circuit, according to testing circuit detection resistance value whether within the scope of this, judged whether children's ride-on, then transducing signal is sent to microcontroller 1;
One microcontroller 1, for running the monitoring facilities of gravity perception cushion, and the signal of Real-Time Monitoring sensor, and control bluetooth module 1 to early warning Host Transfer signal;
One bluetooth module 1, for realizing and setting up blue tooth wireless communication, to its transmission sensor signal between early warning main frame.
3. a kind of forewarn system identified in child car locking according to claim 1, is characterized in that, described early warning main frame comprises:
One bluetooth module 2, for realizing and setting up blue tooth wireless communication between early warning main frame, receives the sensor signal that it is sent;
One microcontroller 2, for running the monitoring facilities of early warning main frame, the state of monitoring bluetooth module 2 sensor-lodging and the automobile coherent signal line line by the input of output/output module, has judged whether in child car locking, and has taked corresponding early warning action;
One input/output module, is connected with the corresponding signal wire (SW) of automobile, comprises multichannel input and output interface; Obtained the state of associated vehicle signal wire (SW) by input interface, then the state of each signal wire (SW) is inputed to microcontroller 2; Performed the output command of microprocessor 2 by output interface, control corresponding vehicle signal line and turn on and off, start or reset early warning action.
4. a kind of forewarn system identified in child car locking according to claim 2, is characterized in that, the monitoring flow process of described microcontroller 1 is:
(4.1), microcontroller 1 read sensor signal, when transducing signal state is " 0 ", then represent in non-perception car have children, when transducing signal state is " 1 ", then represents and perceive in car and have children, then enter step (4.2);
(4.2), to judge between bluetooth module 1 and bluetooth module 2 whether UNICOM's early warning main frame, if UNICOM, send sensor signal to early warning main frame, and perform step (4.3); If non-UNICOM, then perform step (4.4);
(4.3), judge the state of transducing signal if transducing signal state is " 0 ", then to perform step (4.5); If transducing signal state is " 1 ", then perform step (4.7);
(4.4), judge the state of transducing signal if transducing signal state is " 0 ", then to perform step (4.5); If transducing signal state is " 1 ", then perform step (4.6);
(4.5), keep bluetooth module dormancy, then perform step (4.7);
(4.6), microcontroller 1 sends open command, wakes bluetooth module 1 UNICOM early warning main frame up, then sends sensor signal to early warning main frame, then performs step (4.7);
(4.7), after the timer time, step (4.1) is returned.
5. a kind of forewarn system identified in child car locking according to claim 3, is characterized in that, the monitoring flow process of described microcontroller 2 is:
(5.1), to judge between bluetooth module 1 and bluetooth module 2 whether UNICOM, if UNICOM, then perform step (5.2); If non-UNICOM, then perform step (5.3);
(5.2), read and judge sensor signal, if sensor signal state is " 0 ", representing Che Nei without children, then performing step (5.10); If sensor signal state is " 0 ", then representing Che Nei has children, then perform step (5.4);
(5.3), start bluetooth module 2 UNICOM bluetooth module 1, then perform step (5.10);
(5.4), microcontroller 2 by bluetooth module 2 receive bluetooth module 1 send transducing signal after, perform step (5.5);
(5.5), microcontroller 2 reads and judges central controlled lock signal, if central controlled lock is in unlocking condition, then performs step (5.10); If central controlled lock is in blocking, then perform step (5.6);
(5.6), microcontroller 2 reads and judges starting switch ACC signal, if starting switch ACC closes, then represents automobile flame-out, and performs step (5.7); If starting switch ACC connects, represent inserted automobile key and go out, then perform step (5.10);
(5.7), microcontroller 2 exports central controlled lock unlock instruction, connects central controlled lock unlocking signal line, perform unlock operation, then perform step (5.8) by input/output module;
(5.8), microcontroller 2 reads and judges car door signal, reads car door signal line states, if all closing of the doors, then performs step (5.9); If there is car door opening, then perform step (5.10);
(5.9), microcontroller 2 early warning start export two to dodge, audible warning, by input/output module, connect two flashing light and audible warning line, carry out sound and light alarm, then perform step (5.10);
(5.10), after the timer time, step (5.1) is returned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN112053534A (en) * | 2020-09-11 | 2020-12-08 | 上海小鹏汽车科技有限公司 | Method and device for safety control in vehicle |
| CN112530136A (en) * | 2020-11-25 | 2021-03-19 | 李建华 | Warning and rescuing system for preventing children from being locked in vehicle |
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