CN208827699U - Safe distance alarming device for automobile - Google Patents
Safe distance alarming device for automobile Download PDFInfo
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- CN208827699U CN208827699U CN201821636096.0U CN201821636096U CN208827699U CN 208827699 U CN208827699 U CN 208827699U CN 201821636096 U CN201821636096 U CN 201821636096U CN 208827699 U CN208827699 U CN 208827699U
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Abstract
The utility model discloses the safe distance alarming device for automobile, velocity sensor is easy by noise jamming, that is, poor anti jamming capability, the low problem of data precision.The utility model includes single-chip microcontroller, power module, range sensor, velocity sensor, warning lamp, communication module；Wherein, the digital power end of power module and the level input of single-chip microcontroller connect, the distance signal receiving end of single-chip microcontroller and the signal output end of range sensor connect, the speed signal receiving end of single-chip microcontroller and the signal output end of velocity sensor connect, the communication ends of single-chip microcontroller and the end that controls and receives of communication module connect, and the lamp control terminal of single-chip microcontroller and the end that controls and receives of warning lamp connect.The utility model has many advantages, such as that the anti-interference ability of speed sensor circuit is very strong, and the data precision measured is high.
Description
Technical field
The utility model relates to a kind of automobile distance warning devices, and in particular to the safe distance for automobile warns dress
It sets.
Background technique
Now automobile will be used wider and wider it is general, automobile while facilitating people to go on a journey, running safety
Increasingly by the concern of people.In various motor traffic accidents, pileup caused by knocking into the back is even more serious.Study carefully it
Reason, other than not enough collecting medium subjective reason with driver experience deficiency itself, fatigue driving, attention, also with garage
Driver does not keep necessary safe distance related with front vehicles during sailing.In practical driving conditions, for driving
For member, in the case where different road conditions and different running speeds, especially in the case where the weather sight such as haze is bad,
The judgement of safe distance will be gone to estimate completely and be operated by the experience of driver, inevitably occur sometimes certain error and with
Machine, if encountering emergency situations can bring about security risk.
In view of the above-mentioned problems, it is contemplated that using range sensor and velocity sensor judge rear car and this away from
From, default safe distance, but velocity sensor is easy by noise jamming, that is, poor anti jamming capability, data precision is low.
Utility model content
The technical problem to be solved by the utility model is to being surveyed in driving process using velocity sensor and range sensor
Data judge rear car at a distance from this vehicle, default safe distance, wherein velocity sensor is easy i.e. anti-dry by noise jamming
It is poor to disturb ability, data precision is low, and the utility model provides the safe distance alarming device for automobile to solve the above problems.
The utility model is achieved through the following technical solutions:
For the safe distance alarming device of automobile, including single-chip microcontroller, power module, range sensor, velocity sensor,
Warning lamp, communication module；Wherein, the level input of the digital power end of power module and single-chip microcontroller connect, single-chip microcontroller away from
It is connected from the signal output end of signal receiving end and range sensor, the speed signal receiving end of single-chip microcontroller and velocity sensor
Signal output end connection, the communication ends of single-chip microcontroller and the end that controls and receives of communication module connect, the lamp control terminal of single-chip microcontroller and police
That shows lamp controls and receives end connection, and the range sensor is located at the rear side middle position of automobile, and the warning lamp is located at automobile
The both sides position of rear side, in the velocity sensor, input signal is sent to optocoupler 4N35 high-speed disconnecting switch, then is sent to integrated fortune
The preposition difference channel of amplifier U1 is calculated, then is sent through integrated operational amplifier U1 output end to optocoupler 9013, single-chip microcontroller is then sent to
Speed signal receiving end.
The utility model has the following advantages and benefits:
1, the utility model is used for the safe distance alarming device of automobile, in velocity sensor, the connecting terminal of speedometer
Speed signal is obtained, signal is sent to optocoupler 4N35 high-speed disconnecting switch, then is sent to the preposition difference channel of integrated operational amplifier U1
Further removal is interfered and is effectively amplified, then send through integrated operational amplifier U1 output end and to carry out secondary amplify to optocoupler 9013 and make
It obtains speed signal duty ratio and is 50% square-wave signal, and reject clutter, send to the speed signal receiving end of single-chip microcontroller；So that
The anti-interference ability of speed sensor circuit is very strong, and the data precision measured is high；
2, the utility model is used for the safe distance alarming device of automobile, and range sensor is located at the rear side interposition of automobile
Set, the warning lamp is located at the both sides position of automotive back, facilitate ranging from sensor instrument distance from, facilitate warning lamp to rear car rise
To the effect of warning.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the schematic illustration of the safe distance alarming device for automobile of the utility model；
Fig. 2 is the circuit structure diagram of the velocity sensor of the utility model；
Fig. 3 is the range sensor of the utility model and the position view of warning lamp.
Label and corresponding parts title in attached drawing:
1- automobile, 2- warning lamp, 3- range sensor, 4- single-chip microcontroller, 5- power module, 6- communication module, 7- speed pass
Sensor.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment 1
As shown in Figure 1 to Figure 3, for the safe distance alarming device of automobile, including single-chip microcontroller 4, power module 5, distance
Sensor 3, velocity sensor 7, warning lamp 2, communication module 6；Wherein, the electricity at the digital power end of power module 5 and single-chip microcontroller 4
Flat input terminal connection, the distance signal receiving end of single-chip microcontroller 4 are connect with the signal output end of range sensor 3, the speed of single-chip microcontroller 4
Degree signal receiving end is connect with the signal output end of velocity sensor 7, and the control of the communication ends and communication module 6 of single-chip microcontroller 4 connects
Receiving end connection, the lamp control terminal of single-chip microcontroller 4 and the end that controls and receives of warning lamp 2 connect, and the range sensor 3 is located at automobile 1
Rear side middle position, the warning lamp 2 is located at the both sides position of the rear side of automobile 1, in the velocity sensor 7, input signal
It send to optocoupler 4N35 high-speed disconnecting switch, then send to the preposition difference channel of integrated operational amplifier U1, then amplify through integrated computation
Device U1 output end send the speed signal receiving end that single-chip microcontroller 4 is then sent to optocoupler 9013.
The working principle of the utility model are as follows: velocity sensor 7 surveys the speed of this vehicle, and range sensor 3 surveys rear car and this
The data of survey are sent into single-chip microcontroller 4 and handled by the distance of vehicle, default safe distance, and single-chip microcontroller 4 can will be located by communication module 6
The data of reason are sent to host computer；When rear car enters in safe distance, after the warning lamp 2 at this vehicle rear portion will flash prompting
Vehicle, as the distance of rear car is reduced, the enhancing of 2 flicker frequency of warning lamp, brightness enhancing, prompt is more urgent, to reinforce to rear car
The prompting of driver, wherein communication module 6 can be that by Bluetooth communication, the chip of wifi communication.
Embodiment 2
Such as Fig. 1 to Fig. 3, the present embodiment the difference from embodiment 1 is that, in velocity sensor 7, the voltage of+24V is successively passed through
Be grounded after crossing optocoupler 4N35, resistance R1, NPN type triode Q1, resistance R8 ,+5V voltage through optocoupler 4N35 and resistance R3 first
End connection, the second end of resistance R3 are connect with integrated operational amplifier U1 negative input, and after capacitor C1 and resistance R9
Ground connection, the electrode input end of integrated operational amplifier U1 are grounded after resistance R5 and resistance R9, and the first termination of resistance R4 is integrated
The negative input of operational amplifier U1, the second end ground connection of resistance R4, the output end of integrated operational amplifier U1 is through resistance R7
Connect with the base stage of NPN type triode Q2, the positive supply termination+5V voltage of integrated operational amplifier U1, and through resistance R6 with
The collector of NPN type triode Q2 connects, the negative supply termination -5V voltage of integrated operational amplifier U1, NPN type triode Q2's
Emitter ground connection, diode D1 are in parallel with NPN type triode Q2.
Wherein+5V voltage and -5V voltage are used to provide voltage for basis operational amplifier U1, and capacitor C1 has been used effectively to drop
Lower hybrid wave interference.
Embodiment 3
Such as Fig. 1 to Fig. 3, the present embodiment and the difference of embodiment 1 to embodiment 2 are, integrated operational amplifier U1 is
LM358D chip, resistance R1, resistance R2, resistance R3, resistance R4, resistance R6, resistance R8, the resistance value of resistance R9 are 10K Ω, electricity
The resistance value for hindering R5 is 21K Ω, and the resistance value of resistance R7 is 1K Ω, and capacitor C1 is 0.01uf.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (3)
1. being used for the safe distance alarming device of automobile, which is characterized in that passed including single-chip microcontroller (4), power module (5), distance
Sensor (3), velocity sensor (7), warning lamp (2), communication module (6)；Wherein, the digital power end of power module (5) and list
The level input of piece machine (4) connects, the distance signal receiving end of single-chip microcontroller (4) and the signal output end of range sensor (3)
Connection, the speed signal receiving end of single-chip microcontroller (4) are connect with the signal output end of velocity sensor (7), the communication of single-chip microcontroller (4)
End controls and receives end connection with communication module (6), and the lamp control terminal of single-chip microcontroller (4) and the end that controls and receives of warning lamp (2) connect
It connects, the range sensor (3) is located at the rear side middle position of automobile (1), and the warning lamp (2) is located on rear side of automobile (1)
Both sides position, in the velocity sensor (7), input signal is sent to optocoupler 4N35 high-speed disconnecting switch, then is sent to integrated computation
The preposition difference channel of amplifier U1, then give through integrated operational amplifier U1 output end to optocoupler 9013, it is then sent to single-chip microcontroller (4)
Speed signal receiving end.
2. the safe distance alarming device according to claim 1 for automobile, which is characterized in that the velocity sensor
(7) in, the voltage of+24V is successively grounded after optocoupler 4N35, resistance R1, NPN type triode Q1, resistance R8 ,+5V voltage warp
Optocoupler 4N35 is connect with the first end of resistance R3, and the second end of resistance R3 is connect with integrated operational amplifier U1 negative input,
And it is grounded after capacitor C1 and resistance R9, the electrode input end of integrated operational amplifier U1 is followed by through resistance R5 and resistance R9
Ground, the negative input of the first termination integrated operational amplifier U1 of resistance R4, the second end ground connection of resistance R4, integrated computation are put
The output end of big device U1 is connect through resistance R7 with the base stage of NPN type triode Q2, and the positive supply of integrated operational amplifier U1 terminates+
5V voltage, and connect through resistance R6 with the collector of NPN type triode Q2, the negative supply termination-of integrated operational amplifier U1
5V voltage, the emitter ground connection of NPN type triode Q2, diode D1 are in parallel with NPN type triode Q2.
3. the safe distance alarming device according to claim 2 for automobile, which is characterized in that integrated operational amplifier
U1 is LM358D chip, and resistance R1, resistance R2, resistance R3, resistance R4, resistance R6, resistance R8, the resistance value of resistance R9 is 10K
The resistance value of Ω, resistance R5 are 21K Ω, and the resistance value of resistance R7 is 1K Ω, and capacitor C1 is 0.01uf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821636096.0U CN208827699U (en) | 2018-10-08 | 2018-10-08 | Safe distance alarming device for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821636096.0U CN208827699U (en) | 2018-10-08 | 2018-10-08 | Safe distance alarming device for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208827699U true CN208827699U (en) | 2019-05-07 |
Family
ID=66317256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821636096.0U Active CN208827699U (en) | 2018-10-08 | 2018-10-08 | Safe distance alarming device for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208827699U (en) |
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2018
- 2018-10-08 CN CN201821636096.0U patent/CN208827699U/en active Active
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