CN2480251Y - Safety prewarning device for car - Google Patents
Safety prewarning device for car Download PDFInfo
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- CN2480251Y CN2480251Y CN 00266133 CN00266133U CN2480251Y CN 2480251 Y CN2480251 Y CN 2480251Y CN 00266133 CN00266133 CN 00266133 CN 00266133 U CN00266133 U CN 00266133U CN 2480251 Y CN2480251 Y CN 2480251Y
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Abstract
The utility model relates to a vehicle safety alarm, comprising an inertial automatic shock sensor and a wireless receive and transmit device, which is characterized in that the inertial automatic shock sensor essentially comprises a cylinder body, an inertial hammer, a screw thread link, a spring, a conductive plate, a hand control handle and a key button, and the wireless receive and transmit device comprises a signal receive and transmit circuit. The utility model utilizes receive and transmit of electromagnetic signal to provide automatic alarm signal, and the received signal after frequency conversion demodulation generates oscillating signal to drive a loudspeaker circuit. The inertial hammer in main cavity of the cylinder body and a wireless signal receive and transmit device form an automatic alarm signal system via the conductive plate on end of the screw thread link, and simultaneously can form a hand control device with another key button via the hand control handle.
Description
The utility model relates to a kind of safety pre-alarming device of vehicle, belongs to anti-safety alarm device in hot pursuit in the vehicle '.
Automobile has become the modern humans and has accelerated one of important tool of rhythm of life, and increasing express highway becomes the important channel of linking up the interzone circulation especially.But Fa Da highway transportation network had both brought prosperity to the mankind day by day, also brought many worries often.The vehicle flowrate that in the city, increases day by day, often cause the shock of some road section traffic volume to stop up: at the automobile of highway or running on expressway, often ever-changing because of climatic conditions, of common occurrence in traffic congestion, car accident that mist, rain, snow, freezing and even disaster that some other manpower is difficult to resist etc. cause; Especially the accident that rear-ends that occurs on the express highway more allows the people startling.Show according to relevant medium biography breath and data: China tens of the tailstock once repeatedly occurred at express highway and chased after the collision accident; Germany once had 100 tailstock to chase after colony's accident of collision; Estimate that according to United States Federal Government because the loss that the productive output that road congestion caused descends just reached 1,000 hundred million dollars in 1 year, 90% is that mistake causes in the traffic accident that takes place on the highway.
Reaching nurse according to Germany---M-B car manufacturing company research report shows: under dangerous situation, if can in advance half second reaction time then can reduce 30% of the accident in hot pursuit of colliding, 50% of the relevant accident in road surface, head-on 60% of car accident to chaufeur.
Therefore, the generation of the accident that rear-ends on the express highway is especially prevented and reduced to prevention and minimizing traffic congestion incident, wide attention.
The purpose of this utility model: aim to provide a kind of safety pre-alarming device of vehicle, in case the vehicle situation of facing a danger is taked emergency braking, traffic jam or car accident, can send early warning signal to pursuit-type vehicle with the quickest speed, point out its chaufeur to take the actv. countrmeasure.
This safety pre-alarming device of vehicle is made up of automatic shock transducer of inertia and radio receiver-transmitter.It is characterized in that the automatic shock transducer SW2 of described inertia comprises cylinder body (3), inertia hammer (4), threaded rod (5), spring (15), conductive plate (13) and manual controlled handle (19); Described radio receiver-transmitter comprises antenna, CC400 chip and its peripheral circuit, AT89C2051 micro controller system, speaker circuit, light prompt circuit and mu balanced circuit; Wherein said inertia hammer (4) is located in the main chamber of cylinder body (3), and be threaded with threaded rod (5), the left end of threaded rod (5) communicates with signal excitation chamber (11), its end is provided with a conductive plate (13) that can cause the wireless signal transmitting device connecting and disconnecting of the circuit, at end cap (12) position binding post (10) is arranged, binding post communicates with emitter control circuit and button (21) circuit respectively; Described threaded rod (5) can be adjusted the gap between conductive plate (13) and binding post (10) contact, and its right part is provided with a manual handle (19); In the described radio receiver-transmitter---
Antenna: with alerting signal receive this machine of being fed to acceptor circuit and with sensor to alerting signal launch;
A slice CC400 chip and its peripheral circuit: the signal that antenna receives via amu after, after bandpass filter F1 amplifies, receive the RFIN pin input of CC400 chip, the serial interface of giving single chip computer AT 89C2051 again after frequency conversion, demodulation closes up.The transmission signal that sends through micro controller system is received the PDATA input end of CC400, and through the VCO modulation, in the output of RFOUT pin, Q3 amplifies the back and by amu it delivered to antenna and launch;
A slice single chip computer AT 89C2051: receive by the next received signal of CC400 transmission by serial ports RXD, sensor makes micro controller system produce an interruption later on to signal, drives transmission circuit;
Speaker circuit:, also be used for when sending, sending emitting performance and point out normally in order to send alert sound prompting:
Light prompt circuit: indication transmit status;
Mu balanced circuit: in order to offer the 5V power supply of micro controller system and CC400.
According to such scheme design-calculated safety pre-alarming device of vehicle, its advantage is: in case traveling automobile runs into accident---as traffic jam, when trailing collision and other contingencies, the seismic inertia of instinct can be connected the early warning signal energizing circuit automatically, in time, promptly when emergency braking that chaufeur is taked and collision.Send early warning signal by radiowave, send alarm, chaufeur is enhanced your vigilance, take effective countrmeasure, prevent and control that accident takes place and the further expansion of the state of affairs to the receiver of other vehicles in efficient range.During as non-emergent braking or non-collision, fail to produce seismic inertia and drive countdown circuit, this moment, chaufeur can be according to necessity, and the early warning signal energizing circuit is connected in artificial pressing the button (21), realizes transmitting and receiving of early warning signal.
Accompanying drawing 1 is the automatic shock transducer structural representation of inertia of the present utility model:
Accompanying drawing 2 is a radio receiver-transmitter circuit diagram of the present utility model;
Accompanying drawing 3 impacts the liquid-pressure pick-up scheme drawing automatically for the utility model inertia;
Accompanying drawing 4 is another embodiment scheme of the present utility model.
Referring to accompanying drawing, among the figure: 1. dustproof leather cup 2. jam nuts 3. cylinder bodies 4. inertia hammers 5. threaded rod 6. insulcretes 7. tie bolts 8. spring bearings 9. insulating washers 10. binding posts 11. signal excitation chambeies 12. excite chamber end cap 13. conductive plates 14. springs 15. springs 16. fixed supports 17. back-up rings 18. tie bolts 19. manual handle 20. lubricating cups 21. buttons.
Further describe the technical solution of the utility model below in conjunction with accompanying drawing:
Safety pre-alarming device of vehicle as shown in the figure mainly is made up of automatic shock transducer of inertia and radio receiver-transmitter.The as many as automatic impulse interference wave switch of inertia of the automatic shock transducer of wherein said inertia, also can be referred to as the SW2 among " sensor " and Fig. 2, mainly form by inertia hammer (4), cylinder body (3), threaded rod (5), spring (15), conductive plate (13), manual controlled handle (19) and button (21); When the vehicle situation that faces a danger under steam, inertia impact effect when emergency braking that chaufeur is taked or unfortunate the collision, make inertia hammer (4) make the SW2 closure to the left end ballistic motion, cause emitter to send out an emergency signal together with threaded rod (5), conductive plate (13).Described radio receiver-transmitter comprises a signal receiving circuit and a signal sending circuit, and it is to utilize the transmitting-receiving of electromagnetic wave signal to offer the autoalarm signal of chaufeur.Received signal is after the RFIN of CC400 pin input frequency conversion demodulation, be fed to the serial input RXD end of micro controller system again, when being danger signal, judge that by micro controller system the oscillator signal that produces a certain frequency drives speaker circuit, and drive luminous cue circuit simultaneously, send the sound and light alarm signal.This oscillator signal is advisable for 20-30 perdurability second, with enough alerting driver hig diligences.
When sensor after danger signal, send interrupt request to micro controller system.Micro controller system makes an immediate response and is outputed signal to the PDATA port of CC400 by serial delivery port TXD pin, produce a control signal simultaneously and make the relay drive circuit work that constitutes by Q4, this device is in transmit status, and antenna can send the alerting signal after modulation is amplified.The receiving function of this device is for often opening, and emission function is only just connected during to danger signal in sensor.The control of its connection is realized automatically by micro controller system, thereby has simplified physical circuit.The power supply of equipment package adopts 12V or 24V, and it is good that its transmitting range (countryside) reaches 1400-1500 rice.Adopt two cover or some identical equipment, can realize easily that then remote signal transmits, also the machine ringing applicable to the hazardous area transmits.
Specific embodiments is: in real-world operation, when the vehicle of the running at high speed situation that faces a danger, the emergency braking that chaufeur is taked or inevitable car accident and mist, snow, rain, the freezing specific factor that waits, the automatic shock transducer of inertia this moment is under the inertia impact effect of emergency brake of vehicle or bump, make the inertia hammer of being located in the main chamber of cylinder body (3) (4), the application force that overcomes spring (15) is to left movement, promote threaded rod (5) simultaneously also to left movement, cause the conductive plate (being the SW2 among Fig. 2) closed (being the danger signal of sensor) of threaded rod (5) left end; The switch SW 2 of normal circumstances lower sensor control is in off-state, the INT0 pin of micro controller system is a high level, when sensor arrives danger signal, make its master cock SW2 closure, produce a control signal, give low level value of INT0 pin input of micro controller system, make micro controller system produce an interruption, the work of driving transmission circuit, and by antenna electromagnetic wave signal is launched, in the communication process of space, being received by its receiver that same apparatus and same frequency are housed again at any time, demodulation is reduced into alerting signal, and sending the sound and light alarm signal simultaneously, the prompting chaufeur is in time taked the actv. countrmeasure.
Wherein radio receiver-transmitter: Q4 and D2 constitute the driving circuit of relay switch.Under the receiving condition, micro controller system is exported a control signal ends driving circuit, and relay switch is beaten at receiving condition.When sensor makes micro controller system export an opposite levels control signal after danger signal, make drive circuit works, relay switch switches to emission state.
F1 is a bandpass filter.Select alerting signal through the frequency selection network of F1 and L12, C37 formation earlier through the signal that antenna receives.
C32, C33 and C36 constitute electric source filter circuit, by power supply CC400 are produced interference to reduce high-frequency signal, improve the CC400 functional reliability.
The pin VCOIN of CC400 and the circuit between the CHP constitute modulating oscillator.Signal to be sent is held by the DIO that micro controller system is input to CC400, is modulated to radio frequency through modulating oscillator.
Q3 and accessory circuit thereof constitute radio frequency amplifying circuit.Radiofrequency signal, is coupled to radio frequency amplifying circuit by C43 and carries out power gain behind L11 and C30 filter by the RFOUT pin output of CC400.
C44-C48 and L15, L16 constitute amu.Driving circuit is worked under the control of micro controller system when transmitting, and makes relay switch switch to emission state.The radiofrequency signal of Q3 output is delivered to antenna by amu and is launched.
LED1-LED3 and Q6 constitute light indicating circuit.Transmit or when receiving alerting signal, when the P1.6 of micro controller system is output as high level, make the Q6 conducting, LED1-LED3 lights, and indication this moment, circuit was in alarm condition, when sensor not during detection signal, the P1.6 of micro controller system is output as low level, and LED1-LED3 all extinguishes.
Q5 and buzzer phone constitute audible alarm and indicating circuit.The conducting, the cutoff frequency that change Q5 by P1.7 are in report to the police reception or emission state with prompting circuit this moment.
Q7 and relay R LY1, alarm lamp L1 form the alarm lamp indicating circuit.When causing danger situation, micro controller system is launched alerting signal on the one hand, produces high level by P1.5 on the other hand and makes the Q7 conducting, and it is luminous that alarm lamp gets electric back.
Single chip computer AT 89C2051 is the control center of this circuit.1: during reception, micro controller system quits work driving circuit, and antenna is received the RX end.The alerting signal received is through after the demodulation, and the serial input terminal that is input to AT89C2051 by the PDATA pin of CC400 receives, and the P1.7 of micro controller system exports the impulse singla of a certain frequency simultaneously, drives the audible alarm circuit working, sends alerting signal.2: send danger signal here by sensor SW2 during emission, micro controller system makes an immediate response: make drive circuit works, antenna is received the TX end; Treat give a signal outputs to CC400 from the TXD pin PDATA modulating, and after carrying out power gain by Q3, launch through antenna.Drive light indicating circuit work simultaneously, and drive speaker circuit work, be in emission state at this moment with auditory tone cues electric circuit with the impulse singla of another frequency.
Be core formation power unit with 7805,7812.When employing+12V power supply was powered ,+12V directly was transformed to+5V through 7805; When employing+24V power supply was powered ,+24V was transformed to+12V through 7812 earlier, is transformed to+5V through 7805 again, powers to entire circuit.
SW2 is a sensor, through the R17 pull-up resistor received micro controller system+the 5V power supply.The switch of normal circumstances lower sensor control is in off-state, and the INT0 pin of micro controller system is a high level; When sensor arrives danger signal, produce switch SW 2 closures that a control signal makes its control, thereby import a low level value for the INT0 pin of micro controller system, micro controller system is produced interrupt, drive transmission circuit work, the realization alerting signal transmits and receives.
In such scheme, the automatic shock transducer of described inertia also can adopt the inertia impact liquid-pressure pick-up as the frame mode of accompanying drawing 3 to replace, and it is a kind of change to sensor shown in the accompanying drawing 1.Establish a liquid container (23) in described cylinder body (3) top, a pressure sensor (24) is established in the left part, liquid often stores up in the C chamber, when emergency brake of vehicle or when bump, inertia hammer (4) overcomes the application force of spring (15), together with plunger (22) to left movement, liquid pressure is increased, realization sensor closure drives transmission circuit work, realizes that alerting signal sends and receives.
4 in accompanying drawing is that threaded rod is divided into two sections by an integral body.
In sum, all sensor and radio receiver-transmitter unitized constructions with the automatic impact property of inertia all can realize the purpose of this utility model.
Claims (4)
1, a kind of safety pre-alarming device of vehicle, form by automatic shock transducer of inertia and wireless signal transceiver, it is characterized in that the automatic shock transducer SW2 of described inertia comprises: cylinder body (3) inertia hammer (4), threaded rod (5), spring (15), conductive plate (13), signal excitation chamber (11), excite chamber end cap (12), manual controlled handle (19), button (21) to form; Described inertia hammer (4) places in the main chamber of cylinder body (3), and be threaded with threaded rod (5), the left end of threaded rod (5) communicates with signal excitation chamber (11), its end is provided with a conductive plate (13) of linking up wireless signal transmitting device control circuit break-make, described threaded rod (5) can be adjusted the gap between conductive plate (13) and binding post (10) contact, its right part is provided with a manual controlled handle (19), and wherein said button (21) links to each other with circuit connection post (10) respectively.
2, a kind of safety pre-alarming device of vehicle as claimed in claim 1 is characterized in that described wireless signal transceiver comprises:
One with alerting signal receive be fed to acceptor circuit and with sensor to the antenna launched of danger signal;
A slice CC400 chip and its peripheral circuit, the signal that described antenna receives inputs to bandpass filter F1 via amu, receives the RFIN pin of CC400 chip, and the serial interface that sends to micro controller system again after frequency conversion, demodulation closes up;
The transmission signal that micro controller system sends is received the PDATA input end of CC400, and modulation signal is amplified after amu is delivered to the antenna transmitting terminal by aerotron Q3 in the output of RFOUT pin;
The micro controller system that a slice serial ports RXD links to each other with the CC400 data output end.
3, safety pre-alarming device of vehicle as claimed in claim 1 is characterized in that the threaded rod (5) of described sensor can be divided into two sections;
4, safety pre-alarming device of vehicle as claimed in claim 1 is characterized in that described sensor also can adopt liquid-pressure pick-up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266133 CN2480251Y (en) | 2000-12-29 | 2000-12-29 | Safety prewarning device for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266133 CN2480251Y (en) | 2000-12-29 | 2000-12-29 | Safety prewarning device for car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2480251Y true CN2480251Y (en) | 2002-03-06 |
Family
ID=33620287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00266133 Expired - Fee Related CN2480251Y (en) | 2000-12-29 | 2000-12-29 | Safety prewarning device for car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2480251Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103052007A (en) * | 2011-10-15 | 2013-04-17 | 成都锐奕信息技术有限公司 | Wireless location vehicle terminal with binding posts arranged in audio cavities |
-
2000
- 2000-12-29 CN CN 00266133 patent/CN2480251Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103052007A (en) * | 2011-10-15 | 2013-04-17 | 成都锐奕信息技术有限公司 | Wireless location vehicle terminal with binding posts arranged in audio cavities |
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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: 20020306 Termination date: 20100129 |