CN202753925U - Novel warning system for dangers of vehicle - Google Patents
Novel warning system for dangers of vehicle Download PDFInfo
- Publication number
- CN202753925U CN202753925U CN 201220219607 CN201220219607U CN202753925U CN 202753925 U CN202753925 U CN 202753925U CN 201220219607 CN201220219607 CN 201220219607 CN 201220219607 U CN201220219607 U CN 201220219607U CN 202753925 U CN202753925 U CN 202753925U
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- warning system
- warning
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Abstract
The utility model discloses a warning system for dangers of a vehicle, and belongs to the field of electrical appliances of automobiles. The system is mainly characterized in that the sensor technology, the single chip microcomputer measurement and control technology and the like are comprehensively utilized, ultrasonic transmitting and receiving circuits are responsible for acquiring the distance from the vehicle to an obstacle, and a CPU (central processing unit) control system, which is connected with a speedometer of the vehicle, of the warning system judges the speed of the vehicle and the distance acquired by a single chip microcomputer to determine whether the distance is a safety distance or not. When the distance reaches a set safety warning distance, a CPU outputs a signal to a warning port to give an alarm; the CPU transmits a driving signal to an automatic speed reducer if a driver does not take corresponding speed reducing and braking measures, and the opening of a throttle valve of an engine is automatically changed, so that the speed of the vehicle is reduced, and the vehicle runs slowly; and when the vehicle runs too fast and is in a set dangerous-distance critical state, the CPU can transmit an emergency automatic braking signal, and an automatic braking device is turned on to realize emergency braking. When the distance from the vehicle to the obstacle such as a vehicle in front of the first vehicle is smaller than a safety value, an alarm stops giving an alarm.
Description
Technical field
The utility model design guarantees the vehicle safety travel field, particularly a kind of vehicle danger early warning system.
Background technology
Owing to driver tired driving, drinking, the reaction time that the factors such as inclement weather cause is not enough or fail timely dangerous situation to be made reflection, is topmost type in the Modern Traffic accident and cause collision.
Current, the vehicle early warning system mainly concentrates on the attention detection technique of chaufeur, and the early warning under the complex road condition between the collision of two cars reaches and the collision of obstacle then is blank.Therefore a kind of vehicle danger early warning of introducing system is very necessary in vehicle.
Summary of the invention
The purpose of this utility model approximately addresses the above problem again, and the device that provides alert for possible potential collision in a kind of vehicle traveling process is provided, and guarantees that automobile can safety traffic.Be achieved through the following technical solutions:
The utility model vehicle danger early warning system is by ultrasonic transmitter-receiver, and system control cpu and phonetic warning system form.
The system control cpu of native system mainly is made of the AT89S51 that atmel corp produces.
The hypracoustic transmission circuit: consisted of the many thanks oscillating circuit by NE555 timer and ultrasound transmitting transducer, the 3 pin mouths of the P2.0 port controlling NE555 of single chip computer AT 89S51 drive transmitting transducer, make it to launch ultrasonic signal.Ultrasonic signal obtains the little pulse wave of dutycycle through after cushioning, amplifying.
The super sonic acceptor circuit: adopt the LM358 op amp to form amplifying circuit, internal main will comprise two arithmetical circuits of two independent high gains, internal frequency compensation, guarantees super sonic accuracy and sensitivity.
It is characterized in that, described hypracoustic transmission circuit is made of NE555 timing chip and peripheral cell, links to each other with the P2.0 mouth of the AT89S51 of control system; The super sonic acceptor circuit adopts the LM358 op amp to consist of, and limits the quantity of with the P1.0 interface of the AT89S51 of control system; Phonetic warning system is mainly realized by speech chip ISD1420, can realize subsection record and playback.
Phonetic alarm: native system adopts speech chip ISD 1420 to realize warning function.
The utility model is the advantage of prior art relatively:
The native system comprehensive application technology such as sensor technology, scm observe and control, can accurately make in advance rear-end impact according to money side's operational vehicle distance and judging, reduce accident rate.
2. native system can be by improving the count frequency of counting machine, and making the hypracoustic reflection and accepting frequency increases, thereby improves the early warning precision.
3. the safety value in the system is adjustable, can adapt to the different requirements of various complex road conditions.
Description of drawings
Fig. 1 is that the hardware of a kind of vehicle danger early warning of the utility model system forms schematic diagram;
Fig. 2 is the hypracoustic transmission circuit;
Fig. 3 is that hypracoustic is accepted amplifying circuit;
Fig. 4 is the diagram of circuit of system.
The specific embodiment
Super sonic transmits and receives circuit and is responsible for collection vehicle and obstacle distance, and the system CPU control system that links to each other with the speed meter of vehicle judges whether to be in safety distance with the distance of the speed of a motor vehicle and micro controller system collection.When the security alarm that reaches setting apart from the time CPU report to the police to the warning port output signal; If the driver does not take corresponding slowing-down brake measure, CPU sends the driving signal to automatic slow down device, automatically changes the engine air throttle aperture and goes slowly to realize slowing down; If the speed of a motor vehicle is too fast, when entering into the danger range critical conditions of setting, CPU can send the emergency auto braking signal, opens automatic brake arrangement to realize emergency brake.When with obstacle distances such as front trucks during less than safety value, the annunciator stop alarm, system's main program flow is as shown in Figure 4.
Claims (1)
1. new vehicle danger early warning system, comprise ultrasonic transmitter-receiver, system control cpu and phonetic warning system is characterized in that, described hypracoustic transmission circuit is made of NE555 timing chip and peripheral cell, links to each other with the P2.0 mouth of the AT89S51 of control system; The super sonic acceptor circuit adopts the LM358 op amp to consist of, and links to each other with the P1.0 interface of the AT89S51 of control system; Phonetic warning system is mainly realized by speech chip ISD1420, can realize subsection record and playback.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220219607 CN202753925U (en) | 2012-05-03 | 2012-05-03 | Novel warning system for dangers of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220219607 CN202753925U (en) | 2012-05-03 | 2012-05-03 | Novel warning system for dangers of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202753925U true CN202753925U (en) | 2013-02-27 |
Family
ID=47733118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220219607 Expired - Fee Related CN202753925U (en) | 2012-05-03 | 2012-05-03 | Novel warning system for dangers of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202753925U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208166A (en) * | 2013-04-09 | 2013-07-17 | 宝鸡市公安局交通警察支队 | Early warning protection method for danger and intelligent early warning protector for dangerous events for road workers |
| CN103465887A (en) * | 2013-09-23 | 2013-12-25 | 孙宏水 | Vehicle rear-end collision preventing device and control method thereof |
-
2012
- 2012-05-03 CN CN 201220219607 patent/CN202753925U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208166A (en) * | 2013-04-09 | 2013-07-17 | 宝鸡市公安局交通警察支队 | Early warning protection method for danger and intelligent early warning protector for dangerous events for road workers |
| CN103465887A (en) * | 2013-09-23 | 2013-12-25 | 孙宏水 | Vehicle rear-end collision preventing device and control method thereof |
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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: 20130227 Termination date: 20140503 |