CN205149771U - Someone sensing alarm module in car - Google Patents
Someone sensing alarm module in car Download PDFInfo
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- CN205149771U CN205149771U CN201520925689.9U CN201520925689U CN205149771U CN 205149771 U CN205149771 U CN 205149771U CN 201520925689 U CN201520925689 U CN 201520925689U CN 205149771 U CN205149771 U CN 205149771U
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Abstract
The utility model discloses a someone sensing alarm module in car charges module, RGB lamp display module, gravity sensor module and temperature sensor module by main control unit and the human detector module, power module, USB module, the battery that are connected with main control unit and constitutes. This alarm module, vehicle after ruo chenei temperature reaches certain setting value, detect in the car someone simultaneously under the state that stops going, to user's transmitter data, can explain the circumstances in the number -plate number, current position and the car. What the door window can be automatic simultaneously turns down. The utility model discloses can prevent people's carelessness or forget that the car closes people especially infant in the car, fatal injury that the time overlength brought reduces the emergence of tragedy and pained thing.
Description
Technical field
The utility model relates in car people's induction alarm device module, especially relates to stopping travelling or occupant gets off whether there is the annunciator module of people under state that closed door locks in inspection vehicle.
Background technology
In recent years, in car on the market, annunciator is a lot, and the product of each kind, the feature of existence more or less all can not meet the demand in market.Dissect the type of lower commonplace application below.
Direct contact type inductor: the electronic inductor on car door, baggage container or rear door, car bonnet can when force open triggered alarm.If thief breaks the radio receiver in vehicle window stealing car, then annunciator can not trigger.
Electric current and voltage drop inductor: this inductor can the change of monitor vehicle Circuits System.If vehicle has been installed cooling fan, also can keep running when tail-off, this system just cannot have been installed.Equally, if thief breaks vehicle window, also have no idea to report to the police.
Ultrasonic sensing device: the change of this inductor monitoring car internal gas pressure, if having people to break vehicle window or into the car, pressure variation will triggered alarm.The disadvantage of this inductor is, if outside is rather windy, if or have through vehicle formed high wind, also can triggered alarm by the air in air port, therefore, we must remember, will close all inner ventilation mouths, vehicle window and roof hatch (if be the convertible with soft top, should buy diverse another kind of annunciator) during parking.Some inductor can be closed or be regulated its susceptibility, but, can not its function be adjusted too low, otherwise have people to creep into also can not triggered alarm in car.
Microwave sensor: this inductor can detect the solid article of the light beam by inlet point injections all in car.Microwave system is expensive, but the police that not too easily reports an error.This annunciator is also applicable to convertible because even on car soft top put down, as long as there is people into the car, light beam also can triggered alarm.
Concussion inductor: this inductor can detect concussion suddenly, such as have people to attempt to smash glass into the car or destroy vehicle time can report to the police.The susceptibility of concussion inductor needs to regulate has vehicle alert through delayed report mistake near avoiding.
Tilt sensor: the inclination produced when this inductor is lifted vehicle is very responsive, therefore can prevent people from being hung to by vehicle on an other car and go, also can prevent people from being dragged away by car.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, provides in a kind of car and has people's induction alarm device module.This annunciator module sends alarm message when sensing in car and have people, especially stopping travelling or occupant gets off under state that closed door locks whether have people in inspection vehicle.
The purpose of this utility model is achieved through the following technical solutions: have people's induction alarm device module in a kind of car, and it comprises master controller, human body detector module, power module, USB module, battery charging module, RGB lamp display module, weight sensor module and temperature sensor module; Wherein, described USB module connects master controller by serial ports, and weight sensor module connects master controller by IIC interface, and temperature sensor module, human body detector module are all connected master controller by I/O port with RGB lamp display module;
Described master controller is made up of main control chip, 2.4G antenna part and GPIO notch portion; Main control chip adopts NRF51422; 2.4G antenna part comprises: inductance L 1-L3, electric capacity C5-C9, C30; Wherein, the matching circuit of inductance L 2, electric capacity C5, electric capacity C6, inductance L 1, electric capacity C7, electric capacity C30 composition antenna; Antenna part is the requirement according to 2.4G antenna, and reality debugs out most suitable matching circuit, ensures the Performance optimization of antenna; The connection of GPIO notch portion is relatively more flexible, comprises electric capacity C1-C4, C10-C13, C22, resistance R1, inductance L 4, L5, crystal oscillator X1, X2, K switch 1; The effect of electric capacity C3, C4, C11, C22 is filtering, and wherein one end is connected with 1 pin (VDD) of NRF51422, and access 3V power supply, the other pin of electric capacity C11 is connected to ground simultaneously; Electric capacity C11 two ends arrange two test point TP1 and TP2; 3 pin (P0.30) of NRF51422 arrange test point TP5, this test point reserved, and multiple serial ports, uses when convenient prompting.Electric capacity C12 and C13 connects one end of crystal oscillator X2 respectively, and one end altogether in addition.Other one end of crystal oscillator X2 connects 46 pin (P0.27) of NRF51422 and 45 pin (P0.26) respectively; Electric capacity C1 and C2 connects one end of crystal oscillator X1 respectively, and one end altogether in addition.Other one end of crystal oscillator X1 connects 38 pin (XC2) of NRF51422 and 37 pin (XC1) respectively, and GPIO notch portion is all pass into the connection between other module by signal net.
Described human body detector module comprises three data lines, first is connected with the power supply of system, connect 5V power voltage supply, second is connected with the ground of system, and the 3rd is the interface of human body detector module, is connected with voltage 3.3V, connected by a current-limiting resistance R1, R1 one end is connected with the builtin voltage 3.3V of interface, and the other end is connected with the incoming signal V_IN of main control chip, and human body detector module connects miniature human body induction module PIR module probe apparatus in addition.
Described power module, by resistance R3, R5, electric capacity C31, C28, C29, inductance L 6, aerotron Q1, Q2, diode D1, U3, U9 form; U3 adopts RT9261B, U9 to adopt TPS78230DDCT; The capacity of cell of being furnished with due to product design is 500mA, magnitude of voltage is 4V, so be converted to 2 required road power supplys to system power supply by cell pressure VBAT; VBAT is battery voltage signal, aerotron Q1 adopts AO3401, it is NPN type triode, here the effect of switch is played, the S end of aerotron Q1 is connected with VBAT signal, and the G end of aerotron Q1 is connected with the C level of aerotron Q2, the S end of aerotron Q1 and the indirect current-limiting resistance R3 of G end, the B level of aerotron Q2 is connected with the 5V_EN of main control chip, and the E level of aerotron Q2 is connected to the ground and connects; The D of aerotron Q1 connects one end of inductance L 6 after holding and being connected with one end of resistance R5, the other end of inductance L 6 is connected with one end of 1 pin (CE) of U3,5 pin (LX), diode D1 simultaneously, L6 inductance selects step-up coil, plays the effect of boosting; The other end of diode D1 connects 2 pin (VOUT) of U3 and one end of electric capacity C31 simultaneously, and obtain the voltage of a 5V, diode D1 effect is single-phase conducting, oppositely ends; The other end of C31 and the equal ground connection of the other end of R5, C31 is reservoir capacitance; An other road circuit, VBAT signal is connected to ground electric capacity through one and is connected with 1 pin (VIN) of U9 and 3 pin (/EN) simultaneously, and 5 pin (VOUT) of U9 are connected to the electric capacity C29 on ground through one, obtain the voltage of 3V; Wherein C28, C29 are the charge and discharge capacitances of power supply;
Described USB module, be made up of the 5pinUSB interface of a standard, there are 5 pin inside, 1 pin (VCC) is connected with VBUS, 2 pin (D-) are connected with the rs 232 serial interface signal RXD of main control chip, and 3 pin (D+) are connected with the rs 232 serial interface signal TXD of main control chip, and 4 pin are sky pin, do not connect, 5 pin (GND) are connected to ground; USB module is connected with master controller by serial ports; Wherein VBUS is charge power supply line; Module is the USB interface of standard, can charge to system by external data line;
Described battery charging module, is made up of U7, C26, R9, R14, R15, C27, R11; Wherein U7 adopts PL5056 charging IC; VBAT is cell pressure, and VBUS is the voltage of charging, and when VBAT is not enough, VBUS starts working and to charge to system battery; 4 pin (VCC) and 5 pin (CE) of U7 are interconnected, and interconnective one end connects through electric capacity C26 and the VBUS that is arrived ground; VBUS signal is by a component volt circuit, and make CHG_ON signal pass into system master chip, described bleeder circuit is made up of R9, R14 and R15; 5 pin (BAT) of U7 are connected with VBAT signal through the electric capacity C27 that is arrived ground; 1 pin (TEMP) of U7 is connected to ground, and 2 pin (PROG) of U7 are connected to ground through resistance R11; C26, C27 are charge and discharge capacitances; The state charged the battery is judged by two IO, CHGING and CHG_OK; Wherein 7 pin (/GHRG) of CHGING and U7 connect, and 6 pin (/STDBY) of CHG_OK and U7 connect, and wherein R11 is current-limiting resistance;
Described RGB lamp display module, is made up of U8, R4, R8, R12; U8 adopts BHR6GHC; Wherein, LED_B is blue indicator light, and LED_G is green indicating lamp, and LED_R is that red indicating light is all connected with master controller I/O port, controls; R4 one end is connected with 2 pin of U8, and one end is connected with LED_B; R8 one end is connected with 1 pin of U8, and one end is connected with LED_G; R12 one end is connected with 4 pin of U8, and one end is connected with LED_R; 3 pin of U8 are connected with 3V voltage signal; RGB lamp display module can an independent waypoint bright, can control to light simultaneously;
Described weight sensor module, is made up of U4 (MPU6880), R6, R7, C16, C17, C19; U4 adopts MPU6880; Wherein MPU6880 is the gyroscope (weight sensor) of built-in 6 axles, is connected with master controller by IIC interface; 24 pin (SDA/SDI) of U4 are connected with the SDA of main control chip; 23 pin (SCL/SCLK) of U4 are connected with the SCL of main control chip; Master controller carries out reading and the setting of time to MPU6880 by IIC interface transmission read write command; R6, R7 are the pull-up resistors of IIC interface, and R2 is for subsequent use; C16, C17, C19 are filter capacitors; 12 pin (INT) of U4 are connected with 16 pin (P0.10) of NRF51422, pass into main control chip inside; Weight sensor is for understanding the motion conditions of car, and the place, position that car stops; Capital is sent to user side;
Described temperature sensor module, the analogous circuit be made up of resistance R9 and R6; Wherein one end of R9 is connected with 9 pin (P0.05) of main control chip NRF51422,10 pin (P0.06) and 11 pin (P0.07) of the other end and NRF51422 are connected jointly, wherein 9 pin (P0.05) and 10 pin (P0.06) are the simulation pin of main control chip inside, by a large resistance, gather the principle of the magnitude of voltage of simulation pin, obtain temperature accurately; 11 pin (P0.07) are common GPIO mouths, do not possess analog sampling function; R6 is temperature sensor, and adopt thermally dependent resistor NTC-MF52, wherein one end is connected with 9 pin (P0.05) of NRF51422, and end is connected to ground in addition; V_R and V_P can collect the magnitude of voltage at R9 two ends respectively.
The beneficial effects of the utility model are: the utility model can constantly in inspection vehicle in stop motion or car in long-time unmanned situation, and whether someone leaves over Lou in car.And obtain real data and testing result more accurately constantly, once there is something special can allow car owner or the affiliated people of car obtains the position of car and the information of Che Nei in any place in time at once, can not delay, the annunciator that compensate for market is subject to the impact of environment and various factors there is something special not trigger alarm or flase alarm.
Accompanying drawing explanation
Fig. 1 is system module structural representation of the present utility model;
Fig. 2 is system master controller circuit connection diagram;
Fig. 3 is system power supply module circuit diagram, and (a) is 5V circuit, and (b) is 3V circuit;
Fig. 4 is system human body detector module circuit diagram;
Fig. 5 is system USB module circuit diagram;
Fig. 6 is system battery charging module circuit diagram;
Fig. 7 is system RGB lamp display module circuit diagram;
Fig. 8 is system weight sensor module circuit diagram;
Fig. 9 is system temperature sensor module circuit diagram;
Figure 10 is working-flow figure.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, have people's induction alarm device module in a kind of car of the utility model, it comprises master controller, human body detector module, power module, USB module, battery charging module, RGB lamp display module, weight sensor module and temperature sensor module; Wherein, described USB module connects master controller by serial ports, and weight sensor module connects master controller by IIC interface, and temperature sensor module, human body detector module are all connected master controller by I/O port with RGB lamp display module;
As shown in Figure 2, master controller is made up of main control chip, 2.4G antenna part and GPIO notch portion; Main control chip adopts NRF51422; 2.4G antenna part comprises: inductance L 1-L3, electric capacity C5-C9, C30; Wherein, the matching circuit of inductance L 2, electric capacity C5, electric capacity C6, inductance L 1, electric capacity C7, electric capacity C30 composition antenna; Antenna part is the requirement according to 2.4G antenna, and reality debugs out most suitable matching circuit, ensures the Performance optimization of antenna; The connection of GPIO notch portion is relatively more flexible, comprises electric capacity C1-C4, C10-C13, C22, resistance R1, inductance L 4, L5, crystal oscillator X1, X2, K switch 1; The effect of electric capacity C3, C4, C11, C22 is filtering, and wherein one end is connected with 1 pin (VDD) of NRF51422, and access 3V power supply, the other pin of electric capacity C11 is connected to ground simultaneously; Electric capacity C11 two ends arrange two test point TP1 and TP2; 3 pin (P0.30) of NRF51422 arrange test point TP5, this test point reserved, and multiple serial ports, uses when convenient prompting.Electric capacity C12 and C13 connects one end of crystal oscillator X2 respectively, and one end altogether in addition.Other one end of crystal oscillator X2 connects 46 pin (P0.27) of NRF51422 and 45 pin (P0.26) respectively; Electric capacity C1 and C2 connects one end of crystal oscillator X1 respectively, and one end altogether in addition.Other one end of crystal oscillator X1 connects 38 pin (XC2) of NRF51422 and 37 pin (XC1) respectively, and GPIO notch portion is all pass into the connection between other module by signal net.
As shown in Figure 3, described power module by resistance R3, R5, electric capacity C31, C28, C29, inductance L 6, aerotron Q1, Q2, diode D1, U3, U9 form; U3 adopts RT9261B, U9 to adopt TPS78230DDCT; The capacity of cell of being furnished with due to product design is 500mA, magnitude of voltage is 4V, so be converted to 2 required road power supplys to system power supply by cell pressure VBAT; VBAT is battery voltage signal, aerotron Q1 adopts AO3401, it is NPN type triode, here the effect of switch is played, the S end of aerotron Q1 is connected with VBAT signal, and the G end of aerotron Q1 is connected with the C level of aerotron Q2, the S end of aerotron Q1 and the indirect current-limiting resistance R3 of G end, the B level of aerotron Q2 is connected with the 5V_EN of main control chip, and the E level of aerotron Q2 is connected to the ground and connects; The D of aerotron Q1 connects one end of inductance L 6 after holding and being connected with one end of resistance R5, the other end of inductance L 6 is connected with one end of 1 pin (CE) of U3,5 pin (LX), diode D1 simultaneously, L6 inductance selects step-up coil, plays the effect of boosting; The other end of diode D1 connects 2 pin (VOUT) of U3 and one end of electric capacity C31 simultaneously, and obtain the voltage of a 5V, diode D1 effect is single-phase conducting, oppositely ends; The other end of C31 and the equal ground connection of the other end of R5, C31 is reservoir capacitance; An other road circuit, VBAT signal is connected to ground electric capacity through one and is connected with 1 pin (VIN) of U9 and 3 pin (/EN) simultaneously, and 5 pin (VOUT) of U9 are connected to the electric capacity C29 on ground through one, obtain the voltage of 3V; Wherein C28, C29 are the charge and discharge capacitances of power supply;
As shown in Figure 4, described human body detector module comprises three data lines, first is connected with the power supply of system, connects 5V power voltage supply, and second is connected with the ground of system, 3rd is the interface of human body detector module, be connected with voltage 3.3V, connected by a current-limiting resistance R1, R1 one end is connected with the builtin voltage 3.3V of interface, the other end is connected with the incoming signal V_IN of main control chip, and human body detector module connects miniature human body induction module PIR module probe apparatus in addition.
As shown in Figure 5, described USB module is made up of the 5pinUSB interface of a standard, there are 5 pin inside, 1 pin (VCC) is connected with VBUS, 2 pin (D-) are connected with the rs 232 serial interface signal RXD of main control chip, and 3 pin (D+) are connected with the rs 232 serial interface signal TXD of main control chip, and 4 pin are sky pin, do not connect, 5 pin (GND) are connected to ground; USB module is connected with master controller by serial ports; Wherein VBUS is charge power supply line; Module is the USB interface of standard, can charge to system by external data line;
As shown in Figure 6, described battery charging module is made up of U7, C26, R9, R14, R15, C27, R11; Wherein U7 adopts PL5056 charging IC; VBAT is cell pressure, and VBUS is the voltage of charging, and when VBAT is not enough, VBUS starts working and to charge to system battery; 4 pin (VCC) and 5 pin (CE) of U7 are interconnected, and interconnective one end connects through electric capacity C26 and the VBUS that is arrived ground; VBUS signal is by a component volt circuit, and make CHG_ON signal pass into system master chip, described bleeder circuit is made up of R9, R14 and R15; 5 pin (BAT) of U7 are connected with VBAT signal through the electric capacity C27 that is arrived ground; 1 pin (TEMP) of U7 is connected to ground, and 2 pin (PROG) of U7 are connected to ground through resistance R11; C26, C27 are charge and discharge capacitances; The state charged the battery is judged by two IO, CHGING and CHG_OK; Wherein 7 pin (/GHRG) of CHGING and U7 connect, and 6 pin (/STDBY) of CHG_OK and U7 connect, and wherein R11 is current-limiting resistance;
As shown in Figure 7, described RGB lamp display module is made up of U8, R4, R8, R12; U8 adopts BHR6GHC; Wherein, LED_B is blue indicator light, and LED_G is green indicating lamp, and LED_R is that red indicating light is all connected with master controller I/O port, controls; R4 one end is connected with 2 pin of U8, and one end is connected with LED_B; R8 one end is connected with 1 pin of U8, and one end is connected with LED_G; R12 one end is connected with 4 pin of U8, and one end is connected with LED_R; 3 pin of U8 are connected with 3V voltage signal; RGB lamp display module can an independent waypoint bright, can control to light simultaneously;
As shown in Figure 8, described weight sensor module is made up of U4 (MPU6880), R6, R7, C16, C17, C19; U4 adopts MPU6880; Wherein MPU6880 is the gyroscope (weight sensor) of built-in 6 axles, is connected with master controller by IIC interface; 24 pin (SDA/SDI) of U4 are connected with the SDA of main control chip; 23 pin (SCL/SCLK) of U4 are connected with the SCL of main control chip; Master controller carries out reading and the setting of time to MPU6880 by IIC interface transmission read write command; R6, R7 are the pull-up resistors of IIC interface, and R2 is for subsequent use; C16, C17, C19 are filter capacitors; 12 pin (INT) of U4 are connected with 16 pin (P0.10) of NRF51422, pass into main control chip inside; Weight sensor is for understanding the motion conditions of car, and the place, position that car stops; Capital is sent to user side;
As shown in Figure 9, the analogous circuit that described temperature sensor module is made up of resistance R9 and R6; Wherein one end of R9 is connected with 9 pin (P0.05) of main control chip NRF51422,10 pin (P0.06) and 11 pin (P0.07) of the other end and NRF51422 are connected jointly, wherein 9 pin (P0.05) and 10 pin (P0.06) are the simulation pin of main control chip inside, by a large resistance, gather the principle of the magnitude of voltage of simulation pin, obtain temperature accurately; 11 pin (P0.07) are common GPIO mouths, do not possess analog sampling function; R6 is temperature sensor, and adopt thermally dependent resistor NTC-MF52, wherein one end is connected with 9 pin (P0.05) of NRF51422, and end is connected to ground in addition; V_R and V_P can collect the magnitude of voltage at R9 two ends respectively.
As shown in Figure 10, working process of the present utility model is as follows: first judge whether automobile is in motoring condition, and the words being just proceed to judge, until judge not, but will postpone 5S, avoid the time that car waits traffic lights.When judging that automobile stops travelling, send sense command, system is made to enter mode of operation, first detect vehicle interior temperature whether to transfinite, if transfinited, whether people is had in inspection vehicle, if produce alarm message to master controller, otherwise whether someone exists to carry out cycle criterion again, primary controller receives, control vehicle window is turned down, and produce alarm message and send to car owner with the form of note or phone, information comprises the position of car, vehicle interior temperature, with or without the situation of personnel in car, have personnel to be convenient to car owner onboard to take immediate action, arrive in the very nick of time in car, open car door, manually eliminate.
Claims (1)
1. have people's induction alarm device module in car, it is characterized in that, it comprises master controller, human body detector module, power module, USB module, battery charging module, RGB lamp display module, weight sensor module and temperature sensor module; Wherein, described USB module connects master controller by serial ports, and weight sensor module connects master controller by IIC interface, and temperature sensor module, human body detector module are all connected master controller by I/O port with RGB lamp display module;
Described master controller is made up of main control chip, 2.4G antenna part and GPIO notch portion; Wherein main control chip adopts NRF51422; 2.4G antenna part comprises: inductance L 1-L3, electric capacity C5-C9, C30; Wherein, the matching circuit of inductance L 2, electric capacity C5, electric capacity C6, inductance L 1, electric capacity C7, electric capacity C30 composition antenna; GPIO notch portion comprises electric capacity C1-C4, C10-C13, C22, resistance R1, inductance L 4, L5, crystal oscillator X1, X2, K switch 1; Electric capacity C11 one end is connected with 1 pin of NRF51422, and access 3V power supply, the other one end of electric capacity C11 is connected to ground simultaneously; Electric capacity C11 two ends arrange two test point TP1 and TP2; 3 pin of NRF51422 arrange test point TP5; Electric capacity C12 and C13 connects one end of crystal oscillator X2 respectively, and one end altogether in addition; Other one end of crystal oscillator X2 connects 45 pin and 46 pin of NRF51422 respectively; Electric capacity C1 and C2 connects one end of crystal oscillator X1 respectively, and one end altogether in addition; Other one end of crystal oscillator X1 connects 38 pin and 37 pin of NRF51422 respectively;
Described power module by resistance R3, R5, electric capacity C31, C28, C29, inductance L 6, aerotron Q1, Q2, diode D1, U3, U9 form; U3 adopts RT9261B, U9 to adopt TPS78230DDCT; In one road circuit, VBAT is battery voltage signal, aerotron Q1 adopts AO3401, the S end of aerotron Q1 is connected with VBAT signal, the G end of aerotron Q1 is connected with the C level of aerotron Q2, the S end of aerotron Q1 and the indirect current-limiting resistance R3 of G end, the B level of aerotron Q2 is connected with the 5V_EN of main control chip, and the E level of aerotron Q2 is connected to the ground and connects; The D of aerotron Q1 connects one end of inductance L 6 after holding and being connected with one end of resistance R5, the other end of inductance L 6 is connected with one end of 1 pin of U3,5 pin, diode D1 simultaneously; The other end of diode D1 connects 2 pin of U3 and one end of electric capacity C31 simultaneously, and export the voltage of a 5V, diode D1 effect is single-phase conducting, oppositely ends; The other end of C31 and the equal ground connection of the other end of R5, C31 is reservoir capacitance; An other road circuit, VBAT signal is connected to ground electric capacity through one and is connected with 1 pin of U9 and 3 pin simultaneously, and 5 pin of U9 are connected to the electric capacity C29 on ground through one, obtain the voltage of 3V;
Described human body detector module comprises three data lines, first is connected with the power supply of system, connect 5V power voltage supply, second is connected with the ground of system, 3rd is the interface of human body detector module, the builtin voltage of interface is that 3.3V interface direct meets a current-limiting resistance R1 in succession, and the R1 other end is connected with the incoming signal V_IN of main control chip, and human body detector module connects miniature human body induction module PIR module probe apparatus in addition;
Described USB module is made up of the 5pinUSB interface of a standard, and there are 5 pin inside, and 1 pin is connected with VBUS, and 2 pin are connected with the rs 232 serial interface signal RXD of main control chip, and 3 pin are connected with the rs 232 serial interface signal TXD of main control chip, and 4 pin are sky pin, and 5 pin are connected to ground; USB module is connected with master controller by serial ports;
Described battery charging module is made up of U7, C26, R9, R14, R15, C27, R11; Wherein U7 adopts PL5056 charging IC; VBAT is cell pressure, and VBUS is the voltage of charging; 4 pin and 5 pin of U7 are interconnected, and interconnective one end connects through electric capacity C26 and the VBUS that is arrived ground; VBUS signal is by a component volt circuit, and make CHG_ON signal pass into system master chip, described bleeder circuit is made up of R9, R14 and R15; 5 pin of U7 are connected with VBAT signal through the electric capacity C27 that is arrived ground; 1 pin of U7 is connected to ground, and 2 pin of U7 are connected to ground through resistance R11; The state charged the battery is judged by two IO, CHGING and CHG_OK; Wherein 7 pin of CHGING and U7 connect, and 6 pin of CHG_OK and U7 connect, and R11 is current-limiting resistance;
Described RGB lamp display module is made up of U8, R4, R8, R12; U8 adopts BHR6GHC; Wherein, LED_B is blue indicator light, and LED_G is green indicating lamp, and LED_R is red indicating light, and three indicator lamps are all connected with master controller I/O port; R4 one end is connected with 2 pin of U8, and one end is connected with LED_B; R8 one end is connected with 1 pin of U8, and one end is connected with LED_G; R12 one end is connected with 4 pin of U8, and one end is connected with LED_R; 3 pin of U8 are connected with 3V voltage signal;
Described weight sensor module is made up of U4, R6, R7, C16, C17, C19; U4 adopts MPU6880; Wherein MPU6880 is the gyroscope of built-in 6 axles, is connected with master controller by IIC interface; 24 pin of U4 are connected with the SDA of main control chip; 23 pin of U4 are connected with the SCL of main control chip; R6, R7 are the pull-up resistors of IIC interface; C16, C17, C19 are filter capacitors; 12 pin of U4 are connected with 16 pin of NRF51422, pass into main control chip inside;
Described temperature sensor module is the analogous circuit be made up of resistance R9 and R6; Wherein one end of R9 is connected with 9 pin of main control chip NRF51422, and 10 pin and 11 pin of the other end and NRF51422 are connected jointly, and wherein 9 pin and 10 pin are simulation pin of main control chip inside; 11 pin are common GPIO mouths; R6 is temperature sensor, and adopt thermally dependent resistor NTC-MF52, wherein one end is connected with 9 pin of NRF51422, and one end is connected to ground in addition.
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| CN201520925689.9U CN205149771U (en) | 2015-11-19 | 2015-11-19 | Someone sensing alarm module in car |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740568A (en) * | 2016-11-28 | 2017-05-31 | 芜湖市吉安汽车电子销售有限公司 | A kind of on-vehicle safety detecting system |
| CN108340865A (en) * | 2018-04-09 | 2018-07-31 | 威海重乾智能科技有限公司 | Vehicle safety monitoring device and automobile |
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2015
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740568A (en) * | 2016-11-28 | 2017-05-31 | 芜湖市吉安汽车电子销售有限公司 | A kind of on-vehicle safety detecting system |
| CN108340865A (en) * | 2018-04-09 | 2018-07-31 | 威海重乾智能科技有限公司 | Vehicle safety monitoring device and automobile |
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