CN203093971U - Safety prewarning device for vehicle traveling in foggy days - Google Patents
Safety prewarning device for vehicle traveling in foggy days Download PDFInfo
- Publication number
- CN203093971U CN203093971U CN 201220704643 CN201220704643U CN203093971U CN 203093971 U CN203093971 U CN 203093971U CN 201220704643 CN201220704643 CN 201220704643 CN 201220704643 U CN201220704643 U CN 201220704643U CN 203093971 U CN203093971 U CN 203093971U
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- vehicle
- displacement sensor
- micro controller
- prewarning device
- laser displacement
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Abstract
The utility model discloses a safety prewarning device for a vehicle traveling in foggy days. The safety prewarning device comprises a laser displacement sensor positioned in the front of the vehicle, the laser displacement sensor is connected with a single chip microcomputer through an A/D (analog to digital) converter, and an output end of the single chip microcomputer is connected with an LED display screen and a buzzer respectively. When the vehicle travels in foggy days, the safety prewarning device monitors the distance between the vehicle and a vehicle ahead in real time, and when the distance is smaller than a distance set by a driver, the driver is reminded to guarantee travel safety of the driver and the masses. The safety prewarning device for the vehicle traveling in foggy days has the advantages of high integration level, simple structure and low cost, and is suitable for being applied to various vehicles.
Description
Technical field
The utility model belongs to automobile practical technique field, is specifically related to a kind of vehicle greasy weather driving safety prior-warning device.
Background technology
Along with the economic development of China, people's living standard improves year by year, and the recoverable amount of automobile rapidly increases.In life at ordinary times, people drive more continually and ride in an automobile, and therefore, the safety of automobile are had higher requirement.Under special weather situation environment, the safety of driving is difficult to ensure.When travelling in the greasy weather, the road visbility is lower, and the driver is difficult with the identification road conditions, causes traffic accident easily.If run into foggy weather, generally can be for the sake of security, the closing high-speed highway.The weather that no matter hazes is light or heavy, and all the trip of driving to people has caused great inconvenience, does not also see the auxiliary device that the greasy weather is travelled at present on vehicle.
Summary of the invention
The purpose of this utility model is, a kind of vehicle greasy weather driving safety prior-warning device is provided, this device under vehicle greasy weather travel conditions by with the monitoring of front truck spacing, can set different convenient and safe to guarantee apart from minimum.
In order to realize above-mentioned task, the utility model adopts following technical scheme to be achieved:
A kind of vehicle greasy weather driving safety prior-warning device, it is characterized in that, comprise the laser displacement sensor that is positioned at vehicle front, laser displacement sensor is connected with micro controller system by A/D converter, is connected with LED display and buzzer phone respectively at the mouth of micro controller system.
Other characteristics of the present utility model are:
Described laser displacement sensor adopts LDM-D301 long distance laser ranging and range rate sensor.
Described A/D converter adopts the AD7865 conv.
Described micro controller system adopts the AT89S51 micro controller system.
Vehicle greasy weather driving safety prior-warning device of the present utility model, by monitoring following to vehicle greasy weather travel conditions and the front truck spacing, when travelling in the vehicle greasy weather, when Ben Che and leading vehicle distance reach the early warning standard, chaufeur is reminded, to reduce the speed of a motor vehicle, when different travels down, can set different convenient and safe to guarantee apart from minimum.As can suitably improving minimum spacing early warning standard when the running on expressway, when the urban inner road driving, should suitably turn down minimum spacing early warning standard, to guarantee the trip safety of vehicle.It is good to have integration, simple in structure, the characteristics that cost is low, and various automobiles suit to be applied to.
Description of drawings
Fig. 1 is a connection vehicle greasy weather driving safety prior-warning device structured flowchart of the present utility model.
Below in conjunction with drawings and Examples the utility model is described in further detail.
The specific embodiment
Referring to Fig. 1, present embodiment provides a kind of vehicle greasy weather driving safety prior-warning device, comprise the laser displacement sensor that is positioned at vehicle front, laser displacement sensor is connected with micro controller system by A/D converter, is connected with LED display and buzzer phone respectively at the mouth of micro controller system.
In the present embodiment, laser displacement sensor adopts LDM-D301 long distance laser ranging and range rate sensor, and this LDM-D301 long distance laser ranging and range rate sensor measurement time is very short, therefore can measure the object of motion.Measuring distance is long, natural forms surface, diffuse reflection surface, 0.5-300m; Use reflector, 0.5-3000m.Analog quantity output: the output of 4-20mA electric current, able to programme to measurement range, loaded impedance 500 Ω, its 2 tunnel high-end switch amount output, carrying load ability 0.2A, short-circuit protection, alarm set point is able to programme.Its power consumption: just often＜5W, during heating＜11.5W.Operating temperature :-40 ℃-60 ℃, humidity 15%-90% storage temperature :-40 ℃-70 ℃.Serial port able to programme, digital quantity and analog quantity output.Compact conformation is installed easily and is operated.
A/D converter adopts the AD7865 conv, and this AD7865 conv is that a kind of four-way is sampled simultaneously, at a high speed, 14 A/D converter, passes to micro controller system after the vehicle speed signal of LDM-D301 long distance laser ranging and range rate sensor acquisition changed.
Micro controller system adopts the AT89S51 micro controller system, this AT89S51 micro controller system is a low-power consumption, 8 micro controller systems of high-performance CMOS, sheet include 4k BytesISP (In-system programmable) can be erasable repeatedly 1000 times the Flash read-only program memory, compatibility standard MCS-51 instruction repertoire and 80C51 pin configuration, integrated general 8 central process units and ISP Flash memory cell are used to calculate the spacing of automobile and front truck and control demonstration, warning etc. in the chip.
Buzzer phone adopts the buzzer phone of this area routine.
The vehicle greasy weather driving safety prior-warning device of present embodiment preparation, when vehicle travelled in the greasy weather, chaufeur was opened this device, and LDM-D301 long distance laser ranging and range rate sensor is monitoring and front truck spacing in real time, can export by LED display.The AT89S51 micro controller system is compared spacing information with the minimum spacing numerical value that has configured, if vehicle and front truck spacing are during smaller or equal to setting value, AT89S51 Single-chip Controlling buzzer warning, vehicle distance data flicker on the LED display simultaneously, remind chaufeur to note and the spacing present situation of front vehicles, in time take counter-measure.
Claims (4)
1. vehicle greasy weather driving safety prior-warning device, it is characterized in that, comprise the laser displacement sensor that is positioned at vehicle front, laser displacement sensor is connected with micro controller system by A/D converter, is connected with LED display and buzzer phone respectively at the mouth of micro controller system.
2. vehicle greasy weather driving safety prior-warning device as claimed in claim 1 is characterized in that, described laser displacement sensor adopts LDM-D301 long distance laser ranging and range rate sensor.
3. vehicle greasy weather driving safety prior-warning device as claimed in claim 1 is characterized in that, described A/D converter adopts the AD7865 conv.
4. vehicle greasy weather driving safety prior-warning device as claimed in claim 1 is characterized in that, described micro controller system adopts the AT89S51 micro controller system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704643 CN203093971U (en) | 2012-12-19 | 2012-12-19 | Safety prewarning device for vehicle traveling in foggy days |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704643 CN203093971U (en) | 2012-12-19 | 2012-12-19 | Safety prewarning device for vehicle traveling in foggy days |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203093971U true CN203093971U (en) | 2013-07-31 |
Family
ID=48845402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220704643 Expired - Fee Related CN203093971U (en) | 2012-12-19 | 2012-12-19 | Safety prewarning device for vehicle traveling in foggy days |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203093971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175952A (en) * | 2014-05-26 | 2014-12-03 | 上海大学 | Automobile anti-collision air cushion device |
-
2012
- 2012-12-19 CN CN 201220704643 patent/CN203093971U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175952A (en) * | 2014-05-26 | 2014-12-03 | 上海大学 | Automobile anti-collision air cushion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20131219 |