CN201030820Y

CN201030820Y - Automobile deceleration warning device

Info

Publication number: CN201030820Y
Application number: CNU2007201478270U
Authority: CN
Inventors: 刘复汉
Original assignee: DONGGUAN XIEYING COMPUTER Co Ltd
Current assignee: DONGGUAN XIEYING COMPUTER Co Ltd
Priority date: 2007-05-30
Filing date: 2007-05-30
Publication date: 2008-03-05
Anticipated expiration: 2017-05-30

Abstract

The utility model discloses a vehicle deceleration warning device, which is started when a driver want to decelerate, and is composed of an ignition signal acquisition module, a first microprocessor module, a wireless transmission module, a wireless receiving module, a second microprocessor module, and a displaying driving module. The utility model is characterized in that an ignition signal is received by the ignition signal acquisition module and is sent to the first microprocessor module for calculating, then a controlling signal is generated and is transmitted to the second microprocessor module in wireless transmission, and finally a displaying driving signal is generated by the displaying driving module which is controlled by the second microprocessor module. The displaying driving signal is sent to a displaying device (such as a braking lamp and a warning lamp) for producing the lighting effects corresponding to the vehicle deceleration.

Description

The car retardation warning device

Technical field

The utility model relates to a kind of vehicle ' warning device, relates in particular to a kind of car retardation warning device.

Background technology

In the driving process of vapour/machine, the time of driver's major part all is to trail fwd vapour/locomotive to advance, and also therefore causes the traffic accident of afterbody overtaking collision to account for 15%～20% of all traffic accident ratios.At present all vehicles are all installed the 3rd brake Warning light in afterbody, its purpose is nothing but to wish by the car driver cognition of front truck brake to be done sth. in advance, and then step on brake ahead of time, this point can be mainly relevant with Brake Reaction time, the speed of a motor vehicle and brake deceleration/decel by brake distance in the brake process, therefore after the cognitive time of brake shortens, can reach the shortening of whole brake coasting distance, and then reduce the generation of back car overtaking collision accident.

Yet the action of general tradition the 3rd brake Warning light, be with vehicle (for example, automobile) original braking system moves simultaneously, in the time of must applying the brakes by the driver, the brake stretcher presses down, touching micro-switch just has effect, but as when the driver only be when loosening throttle and utilizing inertia to slow down, just notice that without any signal prompting back car front vehicles is in deceleration regime.For common people, optic nerve is comparatively blunt with the caution cresset reaction of fixing bright lamp formula to the distance variation of dead ahead straight-line distance, so when driver's fatigue or attention are concentrated, Chang Wufa discovers the front truck deceleration regime in good time, just make relative deceleration hastily up to approaching with front truck gradually, if front truck this moment brake suddenly again, to cause the brake distance opportunity not enough to produce overtaking collision accident, especially sleet, sand-lime or night even more serious when visual isopter is failed to understand because of missing first brake.

In addition, because green-house effect is serious day by day, various countries begin to pay attention to the environmental protection subject under discussion, wherein the carbon dioxide that vapour/locomotive wheel spin produced is one of greenhouse gases that cause global warming, therefore, various countries formulate all that relevant it is forbidden by decree to that vapour/vehicle idling turned round of a specified duration, to reduce the environmental pollution situation, yet the design of any tickover aposematic mechanism is not arranged in present vapour/rolling stock, so how to provide a kind of driver of prompting to avoid the aposematic mechanism of vehicle idling running situation, become one of researchist's problem to be solved.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of car retardation warning device, when the driver unclamps throttle, even show that with the 3rd brake scape lamp lights, so that the brake cognition time of front vehicle shortens, so as to the safety of lifting vehicular drive, and by judging that whether ignition signal is in idle state above behind the certain hour, triggers alarming device and notifies the driver that vehicle is flame-out, exempt from vehicle idling running situation with minimizing, and then improve problem of environmental pollution.

According to this novel disclosed car retardation warning device, include: the ignition signal acquisition module, be electrically coupled to the ignition signal generation module, receive first voltage signal that the igniting signal generator module produces in the dividing potential drop mode, and first voltage signal that conversion receives is to export behind second voltage signal; The first microprocessor module, be electrically coupled to the ignition signal acquisition module, frequency according to second voltage signal of ignition signal acquisition module output is carried out computing, when successively decreasing, produces first display control signal after the coding processing in the frequency of second voltage signal; Wireless transmitter module is electrically coupled to the first microprocessor module, in order to receiving first display control signal, and is sent to long-range with a wireless transmission method first display control signal; Wireless receiving module is arranged at long-rangely, in order to receiving first display control signal of wireless transmitter module transmissions, and first display control signal is carried out a decoding processing; Second microprocessor module is electrically coupled to wireless receiving module, to receive first display control signal; And driver module, being electrically coupled to second microprocessor module, first display control signal of exporting according to second microprocessor module produces first display drive signals.

In addition, according to this novel disclosed car retardation warning device, include: the ignition signal acquisition module, be electrically coupled to the ignition signal generation module, receive first voltage signal that the igniting signal generator module produces in the dividing potential drop mode, and first voltage signal that conversion receives is to export behind second voltage signal; Microprocessor module is electrically coupled to the ignition signal acquisition module, carries out computing according to the frequency of second voltage signal of ignition signal acquisition module output, when successively decreasing, produces first display control signal in this frequency of second voltage signal; And driver module, being electrically coupled to the first microprocessor module, first display control signal of exporting according to the first microprocessor module produces first display drive signals.

By this car retardation warning device, by detecting the variation situation of ignition signal, to judge whether the driver has the intention of deceleration, when confirming that the driver has deceleration intention, the Warning light of control brake immediately lights, and then the brake cognition time of shortening front vehicle, so as to promoting the safety of vehicular drive, and utilize wireless transmission method to transmit the control signal of brake Warning light, so, driver's Warning light of can being about to certainly brake is installed on above the fold (for example, safety cap, clothes, bicycle pad or trunk surface or the like), more can promote the brake Warning light the installation convenience, in addition, when vehicle after a period of time, more with blinking light or sound warning drivers, reminds the driver flame-out to reduce oil consumption and compliance with environmental protection requirements at tickover.

Relevant these later-model characteristics and implementation, conjunction with figs. is described in detail as follows as most preferred embodiment now.

Description of drawings

Figure 1A is the transmitting terminal system block diagrams of the utility model first embodiment;

Figure 1B is the receiving terminal system diagram of block of the utility model first embodiment;

Fig. 2 is the system block diagrams of the utility model second embodiment;

Fig. 3 A is the transmitting terminal circuit diagram of the utility model first embodiment; And

Fig. 3 B is the receiving terminal circuit scheme drawing of the utility model first embodiment.

Wherein, Reference numeral:

10: ignition signal acquisition module 11: a left side/right steering signaling module

12: brake signaling module 20: first microprocessor module

Microprocessor module 22 in 21: the second: microprocessor module

30: wireless transmitter module 31: wireless receiving module

40: power regulator module 50: driver module

60: display module 61: the right steering lamp

62: Brake lights 63: the left steering lamp

64: tickover lamp 70: driving switch

80: power management module 90: battery

The specific embodiment

Please refer to Figure 1A and Figure 1B, be respectively transmitting terminal system block diagrams and the receiving terminal system diagram of block of the utility model first embodiment.Shown in Figure 1A, car retardation warning device transmitting terminal of the present utility model includes ignition signal acquisition module 10, a left side/right steering signaling module 11, brake signaling module 12, first microprocessor module 20, wireless transmitter module 30 and power regulator module 40.

Ignition signal acquisition module 10 is electrically coupled to an igniting signal generator module (not shown), receive first voltage signal that the igniting signal generator module produces in a dividing potential drop mode, and (for example change first voltage signal, 12 volts to 14.8 volts) be second voltage signal (for example, 0 volt to 5 volts), and first voltage signal is higher than second voltage signal, because first voltage signal that ignition signal acquisition module 10 receives can't directly carry out computing by first microprocessor module 20, so after needing first voltage signal that magnitude of voltage is higher to be converted to the second lower voltage signal of magnitude of voltage, be resent to first microprocessor module 20 and carry out computing, wherein ignition signal acquisition module 10 is made of resistor voltage divider circuit and voltage-regulation (voltage regulator) circuit.

A left side/right steering signaling module 11, be electrically coupled to first microprocessor module 20, according to driver's operating result (for example, direction is faced left/is turned right or the manual spring of a left side/right-hand rotation switch), can produce a left side/right steering signal and export a left side/right steering signal, so that second display control signal that first microprocessor module 20 produces after encoding to first microprocessor module 20.

Brake signaling module 12, be electrically coupled to first microprocessor module 20, according to driver's operating result (for example, applying the brakes), can produce brake signal and output brake signal to first microprocessor module 20, so that first microprocessor module 20 produces first display control signal.

First microprocessor module 20 is electrically coupled to ignition signal acquisition module 10, carry out computing in order to frequency according to second voltage signal of ignition signal acquisition module 10 output, to produce first display control signal, because the frequency of second voltage signal is corresponding to the frequency of first voltage signal, and the frequency of a voltage signal is to change along with the throttle size, in other words, first microprocessor module 20 can judge by the frequency change of monitoring second voltage signal whether engine speed reduces, in the frequency of second voltage signal when successively decreasing (being equivalent to engine speed descends), then produce first display control signal after coding is handled, wherein first microprocessor module 20 can for example be that (Micro-Controller Unit MCU) constitutes by microprocessor controller.In addition, first microprocessor module 20 is carried out computing according to the frequency of second voltage signal of ignition signal acquisition module 10 outputs, be in an idle state in the frequency of second voltage signal and (for example reach a schedule time, 3 minutes or 5 minutes) time, the 3rd display control signal after encoding produced.

Wireless transmitter module 30, be electrically coupled to first microprocessor module 20, in order to receive first display control signal of first microprocessor module 20 outputs, and first display control signal is sent to long-range with a wireless transmission method, wherein wireless transmitter module 30 is made of the microstrip antenna circuit.

Power regulator module 40 is electrically coupled to first microprocessor module 20 and wireless transmitter module 30, in order to provide stable working power to first microprocessor module 20 and wireless transmitter module 30.

Next, shown in Figure 1B, car retardation warning device receiving end of the present utility model includes wireless receiving module 31, second microprocessor module 21, driver module 50, display module 60, driving switch 70, battery 80 and power management module 90.

Wireless receiving module 31, be arranged at long-range (for example, near trunk or the Brake lights), in order to first display control signal, second display control signal or the 3rd display control signal of reception wireless transmitter module 30 transmission, and first display control signal, second display control signal or the 3rd display control signal are carried out a decoding handle.

Second microprocessor module 21, be electrically coupled to wireless receiving module 31, in order to receive first display control signal, second display control signal or the 3rd display control signal, and export first display control signal, second display control signal or the 3rd display control signal to driver module 50, wherein second microprocessor module 21 can for example be that (Micro-Controller Unit MCU) constitutes by microprocessor controller.

Driver module 50, be electrically coupled to second microprocessor module 21, first display control signal, second display control signal or the 3rd display control signal according to 21 outputs of second microprocessor module produce cooresponding first display drive signals, second display drive signals or the 3rd display drive signals, because display control signal also can't direct drive display module 60, so after need carrying out the signal processing and amplifying via driver module 50, produce display drive signals, wherein driver module 50 can be made of signal amplifier circuit.

Display module 60, be electrically coupled to driver module 50, include right steering lamp 61, Brake lights 62, left steering lamp 63 and tickover lamp 64, and produce the illumination effect of corresponding engine deceleration, left-hand rotation, right-hand rotation or tickover according to first display drive signals, second display drive signals or the 3rd display drive signals, and illumination effect includes change color and light flash, and wherein display module 60 is made of changeable colour circuit of LED or three primary colors circuit of LED.

Driving switch 70, be electrically coupled to display module 60, in order to open or to close display module 60, for example, first display control signal control Brake lights 62 is opened or is closed, second display control signal control right steering lamp 61, left steering lamp 63 is opened or is closed, the 3rd display control signal control tickover lamp 64 is opened or is closed, wherein driving switch 70 can for example be by power metal-oxide-semiconductor field effect transistor circuit (Power Metal Oxide Semiconductor Field Effect Transistor, PowerMOSFET) (Field Effect Transistor, FET) circuit constitutes with field-effect transistor.

Power management module 80, be electrically coupled to wireless receiving module 31, second microprocessor module 21 and driver module 50, in order to wireless receiving module 31, second microprocessor module 21, driver module 50, display module 60, driving switch 70 and battery 80 are carried out Power Supply Monitoring, power supply management.

Battery 90 is electrically coupled to power management module 80, in order to wireless receiving module 31, second microprocessor module 21, driver module 50, display module 60, driving switch 70 and the required power supply of power management module 90 work to be provided.

Please refer to Fig. 2, be the system block diagrams of the utility model second embodiment.As shown in Figure 2, car retardation warning device of the present utility model includes ignition signal acquisition module 10, a left side/right steering signaling module 11, brake signaling module 12, microprocessor module 22, power regulator module 40, driver module 50, display module 60 and driving switch 70.

Ignition signal acquisition module 10 is electrically coupled to an igniting signal generator module (not shown), receive first voltage signal that the igniting signal generator module produces in a dividing potential drop mode, and (for example change first voltage signal, 12 volts to 14.8 volts) be second voltage signal (for example, 0 volt to 5 volts), and first voltage signal is higher than second voltage signal, because first voltage signal that ignition signal acquisition module 10 receives can't directly carry out computing by microprocessor module 22, so after needing first voltage signal that magnitude of voltage is higher to be converted to the second lower voltage signal of magnitude of voltage, be resent to microprocessor module 22 and carry out computing, wherein ignition signal acquisition module 10 is made of resistor voltage divider circuit and voltage-regulation (voltageregulator) circuit.

A left side/right steering signaling module 11, be electrically coupled to microprocessor module 22, according to driver's operating result (for example, direction is faced left/is turned right or the manual spring of a left side/right-hand rotation switch), can produce a left side/right steering signal and export a left side/right steering signal, so that microprocessor module 22 produces second display control signal to first microprocessor module 20.

Brake signaling module 12, be electrically coupled to microprocessor module 22, according to driver's operating result (for example, applying the brakes), can produce brake signal and output brake signal to microprocessor module 22, so that microprocessor module 22 produces first display control signal.

Microprocessor module 22 is electrically coupled to ignition signal acquisition module 10, carry out computing in order to frequency according to second voltage signal of ignition signal acquisition module 10 output, to produce first display control signal, because the frequency of second voltage signal is corresponding to the frequency of first voltage signal, and the frequency of a voltage signal is to change along with the throttle size, in other words, microprocessor module 22 can judge by the frequency change of monitoring second voltage signal whether engine speed reduces, in the frequency of second voltage signal when successively decreasing (being equivalent to engine speed descends), then produce first display control signal, wherein microprocessor module 22 can for example be that (Micro-Controller Unit MCU) constitutes by microprocessor controller.In addition, microprocessor module 22 carries out computing according to the frequency of second voltage signal of ignition signal acquisition module 10 outputs, when the frequency of second voltage signal is in an idle state and reaches a schedule time (for example, 3 minutes or 5 minutes), produce the 3rd display control signal.

Power regulator module 40 is electrically coupled to microprocessor module 22, in order to provide stable working power to microprocessor module 22.

Driver module 50, be electrically coupled to microprocessor module 22, first display control signal, second display control signal or the 3rd display control signal according to microprocessor module 22 outputs produce cooresponding first display drive signals, second display drive signals or the 3rd display drive signals, because display control signal also can't direct drive display module 60, so after need carrying out the signal processing and amplifying via driver module 50, produce display drive signals, wherein driver module 50 can be made of signal amplifier circuit.

Please refer to Fig. 3 A, be the transmitting terminal circuit diagram of the utility model first embodiment.The annexation of circuit unit below is described:

Ignition signal acquisition module 10 includes: resistance R 39, resistance R 40, resistance R 41, Zener diode D20, capacitor C 42 and capacitor C 43, wherein second end of resistance R 39 is electrically coupled to second end (being negative terminal) of Zener diode D20 respectively, first end of resistance R 41, first end of capacitor C 42 and first end of resistance R 40, and first end of Zener diode D20 (being anode) is electrically coupled to ground terminal respectively, second end of resistance R 41, second end of capacitor C 42 and second end of capacitor C 43, and first end of capacitor C 43 is electrically coupled to second end of resistance R 40.

First microprocessor module 20 has 20 pins and is respectively: VDD is electrically coupled to first end, the voltage source V CC of capacitor C 34, and second end of capacitor C 34 is electrically coupled to ground terminal; GP5 is electrically coupled to REFCLK; The GP4 sky connects; GP3 is electrically coupled to node IN3; RFXTAL is electrically coupled to first end of oscillator X3, and second end of oscillator X3 is electrically coupled to first end of capacitor C 39, and second end of capacitor C 39 is electrically coupled to ground terminal; The RFEN sky connects; PS is electrically coupled to first end of resistance R 37, and second end of resistance R 37 is electrically coupled to ground terminal; VDDRF is electrically coupled to first end, the voltage source V CC of capacitor C 38, and second end of capacitor C 38 is electrically coupled to ground terminal; The VSSRF sky connects; ANT is electrically coupled to wireless transmitter module 30; The LF sky connects; DATAASK is electrically coupled to GPO; The DATAFSK sky connects; The FSKOUT sky connects; GP2 is electrically coupled to ignition signal acquisition module 10; GP1 is electrically coupled to node IN2; VSS is electrically coupled to node IN1.

Wireless transmitter module 30 includes: resistance R 38, capacitor C 40, capacitor C 41, capacitor C 44, inductance L 7, antenna ANTS1, wherein first end of resistance R 38 is electrically coupled to voltage source V CC, first end of capacitor C 40, first end of inductance L 7, and second end of capacitor C 40 is electrically coupled to ground terminal, and second end of inductance L 7 is electrically coupled to second end of resistance R 38, first end of capacitor C 41, the ANT of first microprocessor module 20, first end of antenna ANTS1, and second end of capacitor C 41 is electrically coupled to ground terminal, and second end of antenna ANTS1 is electrically coupled to first end of capacitor C 44, and second end of capacitor C 44 is electrically coupled to ground terminal.

Power regulator module 40 includes: resistance R 31, resistance R 32, resistance R 33, resistance R 34, resistance R 35, resistance R 36, capacitor C 32, capacitor C 33, capacitor C 35, capacitor C 36, capacitor C 37, Zener diode D13, diode D12, diode D14, diode D15, diode D16, diode D17, diode D18, diode D19, integrated regulator U7, wherein first end of resistance R 31 is electrically coupled to second end (being negative terminal) of diode D16, second end of resistance R 31 is electrically coupled to node IN1, first end of resistance R 34 is electrically coupled to node IN1, second end of resistance R 34 is electrically coupled to ground terminal, first end of capacitor C 35, first end of capacitor C 35 is electrically coupled to node IN1, and first end of diode D16 (being anode) is electrically coupled to the pin position 1 of adaptor union J3 and adaptor union J4.

First end of resistance R 32 is electrically coupled to second end (being negative terminal) of diode D17, second end of resistance R 32 is electrically coupled to node IN2, first end of resistance R 35 is electrically coupled to node IN2, second end of resistance R 35 is electrically coupled to first end of ground terminal, capacitor C 36, first end of capacitor C 36 is electrically coupled to node IN1, and first end of diode D17 (being anode) is electrically coupled to the pin 3 of adaptor union J3 and adaptor union J4.

First end of resistance R 33 is electrically coupled to second end (being negative terminal) of diode D17, second end of resistance R 33 is electrically coupled to node IN3, first end of resistance R 36 is electrically coupled to node IN3, second end of resistance R 36 is electrically coupled to first end of ground terminal, capacitor C 37, first end of capacitor C 37 is electrically coupled to node IN1, and first end of diode D18 (being anode) is electrically coupled to the pin 6 of adaptor union J3 and adaptor union J4.

First end of Zener diode D13 (being anode) is electrically coupled to ground terminal, second end of Zener diode D13 (being negative terminal) is electrically coupled to second end (being negative terminal) of diode D12, second end of diode D14 (being negative terminal), second end of diode D15 (being negative terminal), second end of diode D19 (being negative terminal), first end of capacitor C 32, the pin IN of integrated regulator U7, first end of capacitor C 32 is electrically coupled to ground terminal, first end of diode D12 (being anode) is electrically coupled to the pin 7 of adaptor union J3 and adaptor union J4, first end of diode D14 (being anode) is electrically coupled to the pin 6 of adaptor union J3 and adaptor union J4, first end of diode D15 (being anode) is electrically coupled to the pin 3 of adaptor union J3 and adaptor union J4, and first end of diode D19 (being anode) is electrically coupled to the pin 1 of adaptor union J3 and adaptor union J4.In addition, the pin 4 of adaptor union J3 and adaptor union J4, pin 5 are electrically coupled to ground terminal with pin 8.

The pin GND of integrated regulator U7 is electrically coupled to ground terminal, the pin NC sky of integrated regulator U7 connects, the pin OUT of integrated regulator U7 is electrically coupled to first end of voltage source V CC, capacitor C 33, and second end of capacitor C 33 is electrically coupled to ground terminal.

Circuit operation below is described:

At first, first microprocessor module 20 is by obtaining node IN1, node IN2, node IN3, the signal of data DATA IN changes situation, to carry out related operation, if operation result is: the frequency of (1) ignition signal is successively decreased, (2) driver applies the brakes, (3) driver's control vehicle turns left, (4) right-hand rotation of driver's control vehicle or (4) are when tickover reaches the schedule time, then send first display control signal after coding is handled, second display control signal or the 3rd display control signal are to wireless transmitter module 30, with first display control signal that will encode after handling, second display control signal or the 3rd display control signal are emitted to long-range with wireless transmission method.

Next, please refer to Fig. 3 B, be the receiving terminal circuit scheme drawing of the utility model first embodiment.The annexation of circuit unit below is described:

Wireless receiving module 31 includes: resistance R 2, resistance R 3, resistance R 6, resistance R 7, resistance R 8, resistance R 9, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4, capacitor C 5, capacitor C 6, capacitor C 9, capacitor C 11, capacitor C 12, capacitor C 13, capacitor C 14, capacitor C 15, capacitor C 16, capacitor C 17, capacitor C 18, capacitor C 19, capacitor C 21, capacitor C 25, inductance L 1, inductance L 2, inductance L 4, oscillator X2, oscillator F1, filter integrated circuit U1 and receiver integrated circuit U3, the pin Input of its median filter integrated circuit U1 is electrically coupled to ground terminal, another pin Input of filter integrated circuit U1 is electrically coupled to first end of inductance L 1, second termination of inductance L 1 is received wireless signal and is electrically coupled to first end of capacitor C 4, second end of capacitor C 4 is electrically coupled to ground terminal, the pin GND of filter integrated circuit U1 is electrically coupled to ground terminal, the pin OUTPUT of filter integrated circuit U1 is electrically coupled to first end of inductance L 2, second end of inductance L 2 is electrically coupled to first end of capacitor C 5, the pin IN_LNA of receiver integrated circuit U3, second end of capacitor C 5 is electrically coupled to ground terminal.

The pin of receiver integrated circuit U3 includes: VSS is electrically coupled to ground terminal; GAIN_LNA is electrically coupled to ground terminal; OUT_LNA is electrically coupled to first end of capacitor C 18, first end of inductance L 4 and second end of capacitor C 21, second end of capacitor C 18 and second end of inductance L 4 are electrically coupled to first end of voltage source+V and capacitor C 25, and second end of capacitor C 25 is electrically coupled to ground terminal: IN_MIX1 is electrically coupled to first end of capacitor C 21; IF1P is electrically coupled to first end of resistance R 9, and second end of resistance R 9 is electrically coupled to first end and the voltage source+V of second end of resistance R 8, capacitor C 19; IFIN is electrically coupled to first end of resistance R 8; The one VDD is electrically coupled to voltage source+V; OUT_MIX2 is electrically coupled to first end of oscillator F1, and second end of oscillator F1 is electrically coupled to ground terminal; IN_IFA is electrically coupled to the 3rd end of oscillator F1 and first end of resistance R 6, and second end of resistance R 6 is electrically coupled to second end of FBC2, capacitor C 12 and first end of capacitor C 16, and second end of capacitor C 16 is electrically coupled to ground terminal; FBC1 is electrically coupled to first end of capacitor C 15 and first end of capacitor C 12, and second end of capacitor C 15 is electrically coupled to ground terminal; The 2nd VDD is electrically coupled to first end of voltage source+V and capacitor C 11, and second end of capacitor C 11 is electrically coupled to ground terminal; The OUT_IFA sky connects; The IA_DEM sky connects; The 3rd VDD is electrically coupled to first end of voltage source+V and capacitor C 9, and second end of capacitor C 9 is electrically coupled to ground terminal; OUT_OA is electrically coupled to first end of capacitor C 6 and first end of resistance R 3, and second end of capacitor C 6 is electrically coupled to ground terminal, and second end of resistance R 3 is electrically coupled to the pin RBO/AN12 of second microprocessor module 21; OAN is electrically coupled to first end of capacitor C 3 and first end of resistance R 2, and second end of capacitor C 3 is electrically coupled to ground terminal; OAP is electrically coupled to RSSI; RSSI is electrically coupled to first end of capacitor C 2 and second end of resistance R 2, and second end of capacitor C 2 is electrically coupled to ground terminal; The OUTP sky connects; The OUTN sky connects; RO is electrically coupled to first end of capacitor C 13, and second end of capacitor C 13 is electrically coupled to first end of oscillator X2, and second end of oscillator X2 is electrically coupled to ground terminal; The 4th VDD is electrically coupled to first end of voltage source+V and capacitor C 1, and second end of capacitor C 1 is electrically coupled to ground terminal; ENRX is electrically coupled to the 4th VDD; LF is electrically coupled to first end of capacitor C 14, and second end of capacitor C 14 is electrically coupled to first end of resistance R 7, and second end of resistance R 7 is electrically coupled to ground terminal.

Second microprocessor module 21 has 28 pins and is respectively: RE3/MCLR is electrically coupled to first end of resistance R 1 and the pin 1 of adaptor union J1, and second end of resistance R 1 is electrically coupled to voltage source+V; RAO/ANO is electrically coupled to first end of capacitor C 30 and first end of resistance R 25, second end of capacitor C 30 is electrically coupled to ground terminal, second end of resistance R 25 is electrically coupled to the mouth of op amp U6B and first end of resistance R 30, second end of resistance R 30 is electrically coupled to the first input end (being inverting input) of op amp U6B and first end of resistance R 27, and second end of resistance R 27 is electrically coupled to ground terminal; RA1/AN1 is electrically coupled to first end of capacitor C 31 and first end of resistance R 23, second end of capacitor C 31 is electrically coupled to ground terminal, second end of resistance R 23 is electrically coupled to the mouth of op amp U6A and first end of resistance R 28, second end of resistance R 28 is electrically coupled to the first input end (being inverting input) of op amp U6B and first end of resistance R 29, and second end of resistance R 29 is electrically coupled to ground terminal; RA2/AN2 is electrically coupled to power management module 80; RA3/AN3 is electrically coupled to node AN2; The RA4/TOCKI sky connects; RA5/AN4 is electrically coupled to node AN3; The one VSS is electrically coupled to first end of capacitor C 8 and first end of capacitor C 10, and second end of capacitor C 10 is electrically coupled to ground terminal, and second end of capacitor C 8 is electrically coupled to first end and the RA7/CLKIN of oscillator X1; RA6/CLKOUT is electrically coupled to second end of oscillator X1 and second end of capacitor C 10; The RCO/T1CKI sky connects; RC1/CCP2 is electrically coupled to driver module 50; RC2/CCP1 is electrically coupled to driver module 50; RC3/SCK is electrically coupled to driving switch 70; RC4 is electrically coupled to driving switch 70; RC5 is electrically coupled to driving switch 70; RC6 is electrically coupled to first end of resistance R 5, and second end of resistance R 5 is electrically coupled to second end of light-emitting diode D2 (being negative terminal), and first end of light-emitting diode D2 (being anode) is electrically coupled to voltage source+V; RC7 is electrically coupled to first end of resistance R 4, and second end of resistance R 4 is electrically coupled to second end of light-emitting diode D1 (being negative terminal), and first end of light-emitting diode D1 (being anode) is electrically coupled to voltage source+V; The 2nd VSS is electrically coupled to ground terminal; VDD is electrically coupled to first end of voltage source+V and capacitor C 7, and second end of capacitor C 7 is electrically coupled to ground terminal; RBO/AN12 is electrically coupled to wireless receiving module 31; The RB1/AN10 sky connects; The RB2/AN8 sky connects; The RB3/AN9 sky connects; The RB4/AN11 sky connects; The RB5/AN13 sky connects; RB6/ICSPCLK is electrically coupled to the pin 5 of adaptor union J1; RB7/ICSPDAT is electrically coupled to the pin 4 of adaptor union J1.In addition, the pin 3 of adaptor union J1 is electrically coupled to ground terminal, and the pin 2 of adaptor union J1 is electrically coupled to voltage source+V.

Driver module 50 includes: resistance R 10, resistance R 11, resistance R 13, resistance R 14, resistance R 15, resistance R 16, resistance R 17, resistance R 21, resistance R 22, resistance R 23, resistance R 24, resistance R 25, resistance R 27, resistance R 28, resistance R 29, resistance R 30, capacitor C 26, capacitor C 27, capacitor C 29, capacitor C 30, capacitor C 31, inductance L 5, inductance L 6, diode D5, diode D6, diode D7, op amp U6A, op amp U6B, power transistor Q1, power transistor Q2, field-effect transistor Q3, field-effect transistor Q4 and battery BT1, wherein the grid of power transistor Q1 is electrically coupled to the collection utmost point of field-effect transistor Q3 and first end of resistance R 10, the source electrode of power transistor Q1 is electrically coupled to second end of resistance R 10 and the pin 1 of adaptor union J2, the pin 2 of adaptor union J2 is electrically coupled to ground terminal, the drain electrode of power transistor Q1 is electrically coupled to second end (being negative terminal) of diode D7 and first end of inductance L 5, first end of diode D7 (being anode) is electrically coupled to ground terminal, the emitter-base bandgap grading of field-effect transistor Q3 is electrically coupled to first end of ground terminal and resistance R 16, second end of resistance R 16 is electrically coupled to first end of base stage and the resistance R 13 of field-effect transistor Q3, and second end of resistance R 13 is electrically coupled to second microprocessor module 21.

The grid of power transistor Q2 is electrically coupled to the collection utmost point of field-effect transistor Q4 and first end of resistance R 11, the source electrode of power transistor Q2 is electrically coupled to second end of resistance R 11 and second end of diode D5 (being negative terminal), the drain electrode of power transistor Q2 is electrically coupled to second end (being negative terminal) and inductance L 6 first ends of diode D8, first end of diode D8 (being anode) is electrically coupled to ground terminal, inductance L 6 second ends are electrically coupled to first end (being anode) of diode D6 and first end of capacitor C 27, second end of capacitor C 27 is electrically coupled to ground terminal, second end of diode D6 (being negative terminal) is electrically coupled to first end (being anode) of light-emitting diode D9, first end (being anode) of first end of light-emitting diode D10 (being anode) and light-emitting diode D11, the emitter-base bandgap grading of field-effect transistor Q4 is electrically coupled to first end of ground terminal and resistance R 17, second end of resistance R 17 is electrically coupled to first end of base stage and the resistance R 14 of field-effect transistor Q2, and second end of resistance R 14 is electrically coupled to second microprocessor module 21.

Second input end of op amp U6A (being non-inverting input) is electrically coupled to second end of resistance R 21, second input end of op amp U6B (being non-inverting input) is electrically coupled to first end of resistance R 24, second end of resistance R 24 is electrically coupled to the negative pole of battery BT1 and first end of resistance R 22, second end of resistance R 22 is electrically coupled to ground terminal, the positive pole of battery BT1 is electrically coupled to second end (being negative terminal) of diode D5 and first end of resistance R 15, second end of resistance R 15 is electrically coupled to first end of capacitor C 29, second end of capacitor C 29 is electrically coupled to ground terminal, first end of diode D5 (being anode) is electrically coupled to first end of capacitor C 26 and second end of inductance L 5, and second end of capacitor C 26 is electrically coupled to ground terminal.

Driving switch 70 includes: resistance 18, resistance 19, resistance 20, field-effect transistor Q5, field-effect transistor Q6 and field-effect transistor Q7, wherein the grid of field-effect transistor Q5 is electrically coupled to first end of resistance 18, second end of resistance 18 is electrically coupled to second microprocessor module 21, the source electrode of field-effect transistor Q5 is electrically coupled to first end of resistance 21 and first end of resistance 26, second end of resistance 26 is electrically coupled to ground terminal, the drain electrode of field-effect transistor Q5 is electrically coupled to second end (being negative terminal) of light-emitting diode D9, first end of light-emitting diode D9 (being anode) is electrically coupled to driver module 50, the grid of field-effect transistor Q6 is electrically coupled to first end of resistance 19, second end of resistance 19 is electrically coupled to second microprocessor module 21, the source electrode of field-effect transistor Q6 is electrically coupled to first end of resistance 21 and first end of resistance 26, the drain electrode of field-effect transistor Q6 is electrically coupled to second end (being negative terminal) of light-emitting diode D10, first end of light-emitting diode D10 (being anode) is electrically coupled to driver module 50, the grid of field-effect transistor Q7 is electrically coupled to first end of resistance 20, second end of resistance 20 is electrically coupled to second microprocessor module 21, the source electrode of field-effect transistor Q7 is electrically coupled to first end of resistance 21 and first end of resistance 26, the drain electrode of field-effect transistor Q6 is electrically coupled to second end (being negative terminal) of light-emitting diode D11, and first end of light-emitting diode D11 (being anode) is electrically coupled to driver module 50.

Power management module 80 includes: capacitor C 20, capacitor C 22, capacitor C 23, capacitor C 24, Zener diode D3, diode D4, inductance L 3, power management integrated circuit U4 and integrated regulator U5, wherein the pin IN of power management integrated circuit U4 is electrically coupled to first end of voltage source+V and capacitor C 24, second end of capacitor C 24 is electrically coupled to ground terminal, the pin GND of power management integrated circuit U4 is electrically coupled to ground terminal, the pin OUT of power management integrated circuit U4 is electrically coupled to first end of second microprocessor module 21 and capacitor C 20, second end of capacitor C 20 is electrically coupled to ground terminal, the pin IN of integrated regulator U5 is electrically coupled to first end of inductance L 3 and first end of Zener diode D3 (being anode), second end of Zener diode D3 (being negative terminal) is electrically coupled to voltage source+V, the pin GND of integrated regulator U5 is electrically coupled to ground terminal, the pin OUT of integrated regulator U5 is electrically coupled to first end of capacitor C 22, first end and the voltage source+V of capacitor C 23, second end of capacitor C 22 is electrically coupled to ground terminal, second end of capacitor C 23 is electrically coupled to ground terminal, second end of inductance L 3 is electrically coupled to second end (being negative terminal) and driver module 50 of diode D4, and first end of diode D4 (being anode) is electrically coupled to ground terminal.

Circuit operation below is described:

At first, wireless receiving module 31 carries out Filtering Processing with the wireless signal that receives via filter integrated circuit U1, and the signal after the Filtering Processing is sent to receiver integrated circuit U3 carries out demodulation process, after receiver integrated circuit U3 finishes demodulation, data RF_DATA is sent to second microprocessor module 21 and carries out computing, if operation result is: the frequency of (1) ignition signal is successively decreased, (2) driver applies the brakes, (3) driver's control vehicle turns left, (4) right-hand rotation of driver's control vehicle or (4) are when tickover reaches the schedule time, then send control signal (CCP1, CCP2, LED1, LED2, LED3), shinny so as to driving display module 60.

Comprehensive the above, car retardation warning device of the present utility model, by detecting the variation situation of ignition signal, to judge whether the driver has the intention of deceleration, when confirming that the driver has deceleration intention, the Warning light of control brake immediately lights, and then the brake cognition time of shortening front vehicle, so as to promoting the safety of vehicular drive, and utilize wireless transmission method to transmit the control signal of brake Warning light, so, driver's Warning light of can being about to certainly brake (for example is installed on above the fold, safety cap, clothes, bicycle pad or trunk surface or the like), more can promote the installation convenience of brake Warning light, in addition, when vehicle at tickover after a period of time, more, remind the driver flame-out to reduce oil consumption and compliance with environmental protection requirements with blinking light or sound warning drivers.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; be familiar with those of ordinary skill in the art and work as and to make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.

Claims

1. a car retardation warning device is characterized in that, includes:

One igniting signal acquisition module is electrically coupled to an igniting signal generator module, receive one first voltage signal that this ignition signal generation module produces in a dividing potential drop mode, and this first voltage signal that conversion receives is to export behind one second voltage signal;

One microprocessor module is electrically coupled to this ignition signal acquisition module, carries out computing according to the frequency of this second voltage signal of this ignition signal acquisition module output, when successively decreasing, produces one first display control signal in this frequency of this second voltage signal; And

One driver module is electrically coupled to this microprocessor module, and this first display control signal of exporting according to this microprocessor module produces one first display drive signals.

2. car retardation warning device according to claim 1 is characterized in that, also includes:

One wireless transmitter module is electrically coupled to this microprocessor module, receives this first display control signal, and is sent to long-range with a wireless transmission method this first display control signal;

One wireless receiving module is arranged at that this is long-range, receives this first display control signal that this wireless transmitter module transmits, and this first display control signal is carried out a decoding handle;

One another microprocessor module is electrically coupled to this wireless receiving module, receives this first display control signal; And

Wherein, this driver module is electrically coupled to this another microprocessor module, and this first display control signal of exporting according to this another microprocessor module produces one first display drive signals.

3. car retardation warning device according to claim 2 is characterized in that, also includes:

One left side/right steering signaling module, this microprocessor module of electric property coupling produces one left side/right steering signal and exports this left side/right steering signal to this microprocessor module, and this microprocessor module produces one second display control signal behind the coding; And

One brake signaling module, this microprocessor module of electric property coupling produces a brake signal and exports this brake signal to this microprocessor module, and this microprocessor module produces this first display control signal.

4. car retardation warning device according to claim 3, it is characterized in that, this wireless transmitter module is sent to long-range with this wireless transmission method this second display control signal, this wireless receiving module carries out this decoding to this second display control signal to be handled, and this driver module produces one second display drive signals according to this second display control signal of this another microprocessor module output.

5. car retardation warning device according to claim 4, it is characterized in that, this microprocessor module carries out computing according to the frequency of this second voltage signal of this ignition signal acquisition module output, when this frequency of this second voltage signal is in an idle state and reaches a schedule time, produce coding back one the 3rd display control signal.

6. car retardation warning device according to claim 5, it is characterized in that, this wireless transmitter module is sent to long-range with this wireless transmission method the 3rd display control signal, this wireless receiving module carries out this decoding to the 3rd display control signal to be handled, and this driver module produces one the 3rd display drive signals according to the 3rd display control signal of this another microprocessor module output.

7. car retardation warning device according to claim 6, it is characterized in that, also include a display module, be electrically coupled to this driver module, this first display drive signals, this second display drive signals or the 3rd display drive signals exported according to this driver module produce cooresponding illumination effect.

8. car retardation warning device according to claim 1 is characterized in that, also includes:

One left side/right steering signaling module, this microprocessor module of electric property coupling produces one left side/right steering signal and exports this left side/right steering signal to this microprocessor module, and this microprocessor module produces one second display control signal; And

9. car retardation warning device according to claim 8 is characterized in that, this driver module produces one second display drive signals according to this second display control signal of this microprocessor module output.

10. car retardation warning device according to claim 9, it is characterized in that, this microprocessor module carries out computing according to the frequency of this second voltage signal of this ignition signal acquisition module output, when this frequency of this second voltage signal is in an idle state and reaches a schedule time, produce coding back one the 3rd display control signal.

11. car retardation warning device according to claim 10 is characterized in that, this driver module produces one the 3rd display drive signals according to the 3rd display control signal of this microprocessor module output.

12. car retardation warning device according to claim 11, it is characterized in that, also include a display module, be electrically coupled to this driver module, this first display drive signals, this second display drive signals or the 3rd display drive signals exported according to this driver module produce cooresponding illumination effect.