CN1174139A - Automobile safety distance alarm system - Google Patents
Automobile safety distance alarm system Download PDFInfo
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- CN1174139A CN1174139A CN 96116474 CN96116474A CN1174139A CN 1174139 A CN1174139 A CN 1174139A CN 96116474 CN96116474 CN 96116474 CN 96116474 A CN96116474 A CN 96116474A CN 1174139 A CN1174139 A CN 1174139A
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Abstract
Th alarm system consists of casing, support with spherical knuckle, distance meter and safety distance selector. When the distance between the automobile and front target, including other vehicles and obstacles, is less than the safety distance, the alarm system sends out warning in alarm lamp and loudspeaker. At the same time, automatic decelerator in automobile decelerates the automobile to prevent traffic accident.
Description
The present invention relates to a kind of automobile safety distance alarm system, more specifically to an automobile safety distance warning of having improved.This system can measure the distance between the two automobiles, and when this distance when being less than the safety distance (automotive safety can be checked required minor increment) of automobile, and the siren horn signal that can give a warning reminds chaufeur to keep a safe distance; Automatically operated retarder also can assist chaufeur to lower the speed of a motor vehicle, to keep a safe distance.
Because the speed of automobile is very fast, is easy to take place traffic accident, and causes personal casualty.So everyone is concerned about the safety problem of driving very much.For increasing running safety, many and security-related equipment has been installed, on the modern automobile as the automobile front and back bumper/spoiler of safety strap, safe compressed air bag, reinforcing etc.Get into an accident but all these equipment, its purpose are, can alleviate occupant's injured degree.And these equipment all can not help chaufeur to prevent the generation of traffic accident.One can help chaufeur to prevent the equipment that traffic accident takes place, seem very important.
Most traffic accident occurs in the place ahead of automobile.Prevent the generation of traffic accident, the very important point is the object that makes automobile and its place ahead, comprises that fwd vehicle or other obstacle keep a safety distance, make chaufeur have enough distances before vehicle that knocks the place ahead or object automobile to be checked.This safety distance is relevant with the speed of automobile.Car speed is fast more, and required safety distance is big more; Car speed is slow more, and required safety distance is more little.All mention in many traffic regulations, under the common situation, need just can stop the car about two seconds, thus need in front vehicles maintenance spacing at least two seconds, and in extreme climate environment, need maintenance spacing in four seconds.Method of calculating: two second spacing=car speed * 2 seconds.For example, when car speed be 60 axioms/hour:
Two second spacing=60 axioms/hour * 2 seconds
=60,000 meter/hour * 2 seconds
=60,000 meter/3,600 seconds * 2 seconds
=16.67 meter per seconds * 2 second
Under=33.34 meters other speed conditions, analogize.Speed is fast more, two second spacing big more.
Though stipulate clearly on the traffic regulation that chaufeur must keep a safe distance with front vehicles, in fact is difficult to accomplish this point.Because vehicle in quick travel, accurately be estimated two spacings, the speed of a motor vehicle according to oneself converts again, to determine whether this distance of estimating is safety distance, and in fact this can not accomplish.The chaufeur driving of must focusing one's attention on, rather than carry out mathematical conversion.Introduce the mark that utilizes the roadside on the traffic regulation material that has, calculate safety distance fast,, chaufeur is taken sb's mind off sth, easily cause traffic accident though method is easy.And the speed of a motor vehicle often changes, and this measuring and calculating will often be carried out, can serious attention of disperseing chaufeur.Sometimes weather is bad, as violent storm, dense fog etc., makes the visual field unclear, and safety distance more is hard to keep.Because of the traffic accident of a chain of traffic accident takes place in dense fog, the time report arranged.Sometimes, chaufeur is absent minded, in other people's speech, or thinks other thing, or too devotes wireless program etc., neglects in keeping a safe distance; Sometimes chaufeur is ill or too tired, no energy is calculated safety distance ... in a word, it is very important that the vehicle in automobile and the place ahead keeps a safe distance, but also be difficult to accomplish, needing a specific apparatus helps chaufeur to measure safety distance, send signal to chaufeur in case of necessity, remind chaufeur to keep a safe distance, and can help chaufeur to keep a safe distance automatically.Such equipment takes place preventing traffic accident, seems especially important.
Do not install on the present automobile and can measure the equipment of work stall distance, but have many people that this problem is thought deeply, and applied for patent.As US Patent 5,139,327 and 5,187,537 utilize Distnace determination device to follow the tracks of front vehicles; US Patent 5,212,467 utilize the distance between the ultrasonic measuring vehicle; US Patent 5,214,408 and 5,159,557 utilize the quick distance of knowing between device mensuration and the front truck of image.Yet the distance of being referred in above-mentioned these US Patent is meant the actual distance between two cars, rather than refers to safety distance of the present invention.Difference between these two is: " actual distance " is meant actual distance between two cars that are measured to.This distance is a numeral just, and whether it doesn't matter with traffic safety.Casehistory is 15 meters (actual distances) as the distance between two cars that this equipment was measured to, and this distance can't show the not safety of travelling of automobile, because it does not react the speed of automobile.If car speed is per hour 20 kilometers, its, spacing was 11.1 meters in two second, and then 15 meters distance is safe; Speed as automobile is per hour 60 kilometers, and its, spacing was 33.3 meters in two second, and then 15 meters distance is unsafe, because the automobile of this speed needs 33.3 meters distance just can stop the car." distance of crouching safely " of the present invention is meant and can in time checks needed distance to automobile, so this " safety distance " taken into full account this factor of car speed.If car speed is very fast, needed safety distance is just long; Very slow as car speed, required safety distance is just short.Thereby the safety distance that the present invention referred to is only the real distance that can prevent the traffic accident generation.
The present invention is a later-model automobile safety distance alarm system that has improved.It comprises a ranging computer.This ranging computer is positioned at a case type container.This vessel surface is with a bubble cell, to help that this instrument is adjusted to suitable position.This container bottom fixes by a ball-and-socket joint and Auto Instrument desk.This ball-and-socket joint makes this ranging computer can be adjusted to desired location.Be positioned at the ranging computer of case type container, comprise a projector, the pulse wave of vehicle emission specific wavelength that can be forwards.It also comprises a receiver, to accept the pulse wave of this wavelength that front vehicles reflects.Other has a time meter, matches with emitter and receiver, sends from projector with the pulse wave of measuring this specific wavelength, receives the time of common need to receiver.Since the speed of this pulse wave be fix and be known, thereby can predict the distance between this car and the front vehicles.Safety distance finder in this case type container.Its select switch is positioned at this case type container surface.Chaufeur can be according to weather, conditions such as road conditions, and selection needs the distance with the front vehicles maintenance.Can select to keep two second spacing, three second spacing, or four second spacing.The present invention also comprises a read table.This read table comprises calibrated disc, apart from pointer and speed indicator.Four layers of scale are arranged on the calibrated disc.The ground floor scale of outermost shows the speed of a motor vehicle of this automobile.Other three layers of scale show the safety distance that this automobile should keep with front vehicles under this speed.They represent respectively two second spacing, three second spacing and four second spacing safety distance.Nestle up calibrated disc apart from pointer.It is a discoid pointer.The second layer, the 3rd layer or the 4th layer of shown distance of scale are pointed in its tip on calibrated disc.This is discoid to be made of plastics apart from pointer, and its surface is with a sector shape sheetmetal.The length that its arc is capable is about 45 degree.The straight flange in left side is near line most advanced and sophisticated apart from pointer and the center of circle.There is a lead that this sheetmetal is linked to each other with the distance finder.Shaft-like speed indicator is arranged on the distance pointer, point to the scale of calibrated disc ground floor, the speed of display automobile.There is a tuftlet metal brush below of this speed indicator.When speed indicator was crossed apart from pointer most advanced and sophisticated, the metal brush of its below contacted with the sheetmetal apart from the pointer surface, made the local current circuit connection at this position, and siren horn and automatically operated retarder are had an effect.
Siren horn comprises a warning lamp and a loud speaker.They all are positioned at above-mentioned case type container.When the distance between two cars less than safety distance the time, siren horn can be had an effect: warning lamp can be glittering, and loud speaker can send chimes of doom, and acousto-optic is also deposited, and can remind chaufeur to note keeping a safe distance in time.The present invention also comprises an automatically operated retarder and master cock thereof.This master cock is positioned on the above-mentioned case type container.When needs use automatically operated retarder, can connect this switch.When spacing less than safety distance, when siren horn began to play a role, automatically operated retarder can automatically assist to lower speed, so that automobile and front vehicles keep a safe distance.
Before the present invention is further described below, have to be noted that the present invention is not limited to design plan related in the application material, also be not limited to character narrate hereinafter and illustrate each related component part.Note word used in the present invention and term equally, only be for the ease of narration, and can not be considered to limitation of the present invention.In view of the above, technical personnel in this technical field, can be without creationary design, based on the present invention, design other mapping modes, carry out conversion as many aspects such as shape, size, material, form, installation site and operating mode, but these mapping modes are included within the application's the claim scope to relative assembly.
Main purpose of the present invention, the automobile safety distance alarm system that has been a new improvement is provided.The safety distance that this system measured fully takes into account the speed of this automobile and make this automobile check the relation of required separation distance fully, rather than simply measure the actual distance between two cars, thereby the safety distance that the present invention measured is more reliable.Simultaneously,, can give the alarm, make chaufeur note keeping a safe distance when the distance of this car of this system discovery and front vehicles the time less than safety distance.
Another object of the present invention provide a new improvement automobile safety distance alarm system.This system provides the automobile automatic slow down device, thereby automobile and front vehicles are kept a safe distance automatically, avoids accident to take place.
A further object of the present invention provide a new improvement automobile safety distance alarm system.It simple in structure, reliable operation is easy to produce.
A further object of the invention provides an automobile safety distance alarm system with low cost.Because simple in structure, material and labour costs are all very low, are easy to promote the use of.
Last purpose of the present invention provides an automobile safety distance alarm system easy to use.Only need choose the safety distance of required maintenance, the energized switch gets final product work.
The present invention realizes by following conception:
Measure actual distance between this automobile and the front vehicles with a ranging computer, measure the moving velocity of automobile with the original speed meter of automobile.On read table, the calibrated disc by circle, discoid apart from pointer and shaft-like speed indicator combines the speed of a motor vehicle of the distance between measured two cars with automobile dexterously.In conjunction with mode be such: the speed indicator of automobile can be pointed out four numerals: the speed of (1) automobile; (2) under this speed, desire keeps the safety distance of the required maintenance of two spacings in second; (3) under this speed, desire keeps the safety distance of the required maintenance of three spacings in second; (4) under this speed, desire keeps the safety distance of the required maintenance of four spacings in second.The distance of pointing out when the distance pointer is greater than the pointed safety distance of speed indicator the time, and disc can not contact with the metal brush below the speed indicator apart from the sheetmetal on the pointer, and siren horn can not reacted.The distance of pointing out when the distance pointer is less than the pointed safety distance of speed indicator the time, disc contacts with metal brush under the speed indicator apart from the sheetmetal on the pointer, this place's current circuit is switched on, and siren horn promptly sends signal, and automatic slow down device also will make the automobile automatic deceleration.
The safety distance finder can allow chaufeur select the safety distance of required maintenance by the safety distance select switch.Weather is good, road conditions just often, can select to keep two second spacing; On express highway, can select to keep three second spacing; Can select when weather or road conditions are very abominable to keep four second spacing.
Car alarm system can be with the warning lamp of redness and the loud speaker signal that gives the alarm.
The automobile automatically operated retarder can be by cutting off fuel feeding, or mode such as appropriateness brake or make car deceleration by other modes, to maintain safe distance.
The advantage of automobile safety distance alarm system of the present invention is that name shows: have many equipment to improve the safety of driving on the present automobile, as safety strap, compressed air bag, preceding pressure Federal bumper etc.Yet these equipment can only reduce Vehicle And Personnel's damage after automobile gets into an accident, and can not prophylactically prevent the generation of traffic accident.Because most of traffic accidents occur in the place ahead of automobile, car speed is fast more, and consequence is serious more.The present invention can help chaufeur and front vehicles or other obstacles to keep a safe distance, thereby can prevent the generation of traffic accident.
Distinctive feature of the present invention is that it can judge this car that measured and the distance between front vehicles safety whether for the speed of a motor vehicle of this car.Though have many people to design the equipment that can measure two vehicle headways, they are not taken into account the speed of this car, thereby have no way of judging that institute measures whether safety distance of distance, the present invention has then remedied this deficiency.
In addition, simplicity of design of the present invention need not used costliness, complex apparatus, and is safe and reliable, with low cost, is easy to promote, and has very big practicality.
Fig. 1 is the scheme drawing of automobile safety distance alarm system of the present invention on Auto Instrument desk;
Fig. 2 is the lateral plan of safety distance siren horn and support thereof;
Fig. 3 is the block diagram of safety distance siren horn of the present invention;
Fig. 4 is the front elevation of read table of the present invention, and it can show the speed of this car; Should be under this speed in three kinds of safety distances of front vehicles maintenance; Also can show the distance between actual this car that measures and the front vehicles;
Fig. 5 is in the read table of the present invention, calibrated disc, apart from the scheme drawing that concerns between pointer and the speed indicator, and show its position in current circuit;
Fig. 6 is current circuit figure of the present invention, shows the interconnective situation of each parts;
Fig. 7 is installed in the locational front elevation of former speed meter on the Automobile instrument for read table of the present invention.
Now in conjunction with the accompanying drawings, automobile safety distance alarm system of the present invention is described in detail.
Fig. 1 shows the installation site (10) of automobile safety distance alarm system of the present invention in automobile.It can be installed in the middle top of Auto Instrument desk (18), face forward.Its available automobile socket (92) that lights a cigarette is a power supply, or directly is connected on the battery of automobile.It has a lead (93) to link to each other with the automatically operated retarder of automobile in addition.
Fig. 2 shows the mode that automobile safety distance siren horn of the present invention (10) and Auto Instrument desk (18) fix.There is one " T " font support (12) this below apart from siren horn, and the bottom of this support (13) and Auto Instrument desk green phase are bonding and be fixed.There is a ball-and-socket joint (16) at its middle part, this can be regulated, can aim at the target in the place ahead exactly to each side apart from siren horn.
Fig. 3 is the block diagram apart from siren horn.It has a shell (14), and case surface has a level indicator (20), this instrument is aimed at the target in the place ahead to assist chaufeur.There is a source switch (90) this side apart from siren horn, whether needs to use this safety distance alarm system with decision.Also have an automatically operated retarder switch (100), whether need to use automatically operated retarder with decision.Other has a safety distance select switch (32), and it has three class, can select respectively to keep two second spacing, three second spacing or four second spacing, wherein, between car speed and the safety distance relation see Table one.The warning lamp (82) that a siren horn is arranged again.When siren horn was worked, it can send the ruddiness that glitters.There are ranging computer (22), safety distance finder (30) and siren horn (80) in inside in this shell (14).
Table 1
| The speed of a motor vehicle (km/h) | 10 | ?20 | ?30 | ?40 | ?50 | ?60 | ?70 | ?80 | ?90 | ?100 | ?110 | ?120 | ?130 | ?140 |
| 2 spacings in second (m) | 5.6 | 11.1 | ?16.7 | ?22.2 | ?27.8 | ?33.3 | ?38.9 | ?44.4 | ?50.0 | ?55.6 | ?61.1 | ?66.7 | ?72.2 | ?77.8 |
| 3 spacings in second (m) | 8.3 | ?16.7 | ?25.0 | ?33.3 | ?41.7 | ?50.0 | ?58.3 | ?66.6 | ?75.0 | ?83.3 | ?91.7 | ?100 | ?108 | ?117 |
| 4 spacings in second (m) | 11.1 | ?22.2 | ?33.3 | ?44.4 | ?55.6 | ?66.7 | ?77.8 | ?88.9 | ?100 | ?111 | ?122 | ?133 | ?144 | ?156 |
Ranging computer (22) has a projector, the pulse wave of the specific wavelength of vehicle or encumbrance emission forwards.It also has a receiver, with the pulse wave of accepting to be reflected by front vehicles or encumbrance.Also have a time meter in addition, link to each other, fire back the required time by launching to measure this pulse wave with emitter and receiver.Because this pulse wave propagation velocity is a known number, so the time of pulse propagation can be represented its distance basically.(time * pulse wave velocity of distance=pulse propagation/2).
Safety distance finder (30) is connected with ranging computer 22.It matches with select switch (32), selects the spacing of required maintenance by chaufeur, and a corresponding signal is sent to read table (40).
Siren horn (80) comprises a warning lamp (82) and loud speaker (84).Both all are positioned at shell (14).This siren horn (80) links to each other with read table (40).When the distance of automobile and front vehicles less than safety distance the time, warning lamp can glisten, and loud speaker can be sounded.
Fig. 4 is the front elevation of the included read table of automobile safety distance alarm system.This read table comprises three parts: calibrated disc (42), apart from pointer (60) and speed indicator (70).These parts cooperatively interact, and make read table performance function.
The first of read table is calibrated disc (42).Calibrated disc has four layers of scale.Its ground floor scale (44) is pointed out the moving velocity of this automobile.The second layer scale (46) of calibrated disc shows desires to make this automobile and front vehicles to keep safety distance between this two car during spacing in two seconds.The 3rd layer of scale of calibrated disc (62) (48) shows the safety distance between this two car when desire keeps three minutes spacings.The 4th layer of scale (50) of calibrated disc shows when desire keeps four minutes spacings, the safety distance between this two car.Second and third, the use of four layers of scale,, select according to weather, road conditions by chaufeur by above-mentioned select switch (32).
The second portion of read table is apart from pin (60).This is a round plastic sheet apart from pointer, a pin sample projection (62) is arranged with the indication reading on its limit.On this round plastic sheet, post a fan-shaped sheetmetal (68).A straight flange (64) of this sheetmetal is near the line of this pin sample projection (62) with the center of circle.When select switch (32) be placed on two second spacing the position on the time, understand position with the second layer scale on the calibrated disc apart from pointer; When select switch (32) be placed on three second spacing the position on the time, understand position with the 3rd layer of scale on the calibrated disc apart from pointer; Equally, when selecting switch (32) to be placed on for four seconds during spacing, with the position of the 4th layer of scale deciphering apart from pointer.Apart from the signal of pointer from described ranging computer.Sheetmetal (68) apart from the pointer surface links to each other with the safety distance finder by lead.
The third part of read table is speed indicator (70).This speed indicator is more elongated and firm, by conductive metallic material making.There is a branch of metal brush (71) below at this pointer middle part (Fig. 6), links to each other with siren horn (80) by lead.This speed indicator can be indicated the moving velocity of this automobile.In fact, this speed indicator is speed indicator in the original speed meter of this automobile and slightly changes and form.This speed indicator 70 is understood four layers of scale on the calibrated disc simultaneously.When it during in a certain position, the ground floor scale shows the speed of this car; Second layer scale is presented under this scale, two second spacing safety distance; The 3rd layer of scale is presented under this scale, three second spacing safety distance; The 4th layer of scale is presented under this scale, four second spacing safety distance.For example, as shown in FIG., when the speed of automobile during for 50 axioms per hour, and two second spacing safety distance be 27.8 meters; Three second spacing safety distance be 41.7 meters; Four second spacing safety distance be 55.6 meters.The distance of pointing out when distance pointer (62) is less than the indicated safety distance of speed indicator (70) time, the metal brush (71) of speed indicator below can touch the sheetmetal (68) apart from the pointer surface, at this moment, the current circuit of siren horn is switched on, siren horn can send alarm signal, and automatically operated retarder is also started working.In the time of safety distance that the actual distance of pointing out when the distance pointer is pointed out greater than speed indicator, the metal brush of speed indicator below can't touch the sheetmetal apart from the pointer surface, and the siren horn current circuit can't be connected, and siren horn and automatically operated retarder are not all worked.
Table 1 is the relation table between car speed and the automobile safety distance.By finding out different speed, the safety distance difference of required maintenance in the table.Having listed in the table has three kinds of different safety distances under a certain speed, they be respectively two second spacing safety distance, three seconds kind spacings safety distance and four second spacing safety distance.
Fig. 5 is in the described read table, calibrated disc (42), apart from the graph of a relation between pointer (60) and the speed indicator (70).And shown current circuit figure between they and power supply, siren horn (80) and the automatically operated retarder (91).Can find out in the drawings, when the metal brush (71) of speed indicator (70) below with apart from the surperficial sheetmetal (68) of pointer (60) when contacting, whole current circuit is switched on, siren horn (80) and automatically operated retarder (91) can play a role.
Fig. 6 shows the current circuit graph of a relation between the each several part of the present invention.As can be seen from Figure, siren horn (80) is in parallel with automatically operated retarder (91).Then with power supply (92) and source switch (90), ranging computer, safety distance finder (30) and read table are in series.After source switch (90) and automatically operated retarder switch (100) connection, whole automobile safety distance alarm system is in running order.When the distance between this automobile and the front vehicles time less than the pointed safety distance of speed indicator (70), the metal brush (71) of speed indicator below can contact with the sheetmetal (68) on distance pointer (60) surface, whole current circuit is switched on, siren horn (80) and automatically operated retarder (91) just play a role, remind, and help chaufeur and front vehicles to space out, up to the distance between automobile and the front vehicles time greater than the pointed safety distance of speed indicator, the metal brush (71) of speed indicator below separates with the sheetmetal (68) apart from the pointer surface, the current circuit of total system is cut off, and siren horn and automatically operated retarder just quit work.When read table is installed on the Automobile instrument, by lead (50) with the signal of ranging computer be communicated to read table apart from the pointer (60), make it reflect actual distance between two cars.
Automatically operated retarder among the figure (91) is with a switch (100).It can allow the chaufeur decision whether use this equipment.This automatically operated retarder (91) is connected in parallel in the current circuit with siren horn (80).After its switch (100) was connected, when the distance of this car and front vehicles less than safety distance the time, automatically operated retarder can make car deceleration, thereby drew back the distance with front vehicles.The principle of automatically operated retarder can have multiple, and the simplest method is the path that cuts off gasoline, and automobile is slowly slowed down; Or be aided with dead-man's device, automobile is slowed down fast.
Figure (7) is installed in the locational front elevation of former speed meter on the Automobile instrument for read table of the present invention.
Automobile safety distance alarm system of the present invention is work like this: before driving, turn on the power switch earlier, make total system in running order.According to weather and road conditions, regulate select switch, with determine the spacing that should keep with front vehicles be two second spacing, still three second spacing, more or four second spacing.Open the automatically operated retarder switch, automatically operated retarder can be played a role.When running car, when the distance of Ben Che and front vehicles or obstacle less than safety distance the time, siren horn is worked immediately: red warning lamp can be glittering, the loud speaker sound that can give a warning; Simultaneously, automatically operated retarder is started working, and makes this car deceleration, and draws back with the distance of the place ahead target.Work as car deceleration, the distance of it and the place ahead target is greater than safety distance the time, and siren horn and automatically operated retarder just quit work.Total system can help the vehicle in chaufeur and the place ahead or obstacle to keep a safe distance effectively, thereby prevents the generation of accident.Sometimes, when the road surface too rises and falls or bend of road when excessive, ranging computer can measure the target of the road surface or the road outside of protuberance, and causes siren horn work.At this moment, chaufeur need only be done a simply judgement, can know whether dangerous situation.
Automobile safety distance alarm system of the present invention can also be installed in the rear of automobile, with the vehicle of measuring the rear whether with the own enough safety distances of automobile maintenance.Rearmounted automobile safety distance alarm system needs to change slightly: the red warning lamp of siren horn is moved on to the rear of box-shaped shell, chaufeur can be seen from back mirror.Cut off the circuit of its loud speaker, loud speaker is not worked, in order to avoid obscure with the loud speaker of preposition safety distance warning.In addition, at the rear of automobile a warning light backward is installed, the lamp for stronger redness flash of light keeps a safe distance with the chaufeur of reminding front vehicle.The principle of the automobile safety distance alarm system that this is rearmounted is such: the speed of a motor vehicle of front vehicle has three kinds of situations in theory: faster than this vehicle speed, and slower than this vehicle speed, equate with this vehicle speed.Slower than this vehicle speed as it, spacing can be increasing, do not have safety problem.Speed as it is faster than this car, can more and more draw close to this car, and it can keep the speed identical with this car then, in order to avoid hit this car.At this moment, it can maintain a certain distance with this car.When its speed equates that with this car it also maintains a certain distance with this car.Because the distance of two cars equates that rearmounted safety distance alarm system can be benchmark with the speed of car, measure front vehicle and whether keep a safe distance with this car.Too short as distance, rearmounted warning light can be glittering, maintains safe distance with the chaufeur of reminding front vehicle; Simultaneously, the police on this case type container also can remind this car chaufeur that the back car is enhanced your vigilance.
Claims (6)
1. automobile safety distance alarm system comprises:
Shell: be a case type container;
Support: be the column structure of shell below, to support shell; It is characterized in that described support has a ball-and-socket joint, it is positioned at the middle part of support, makes shell adjust the position to each side,
Base: be positioned at the lower end of support, in order on the instrument desk that described shell is fixed on automobile or other suitable positions;
Level indicator: be positioned at described case surface, in order to assist that this instrument is adjusted to correct position;
Ranging computer: be positioned at described shell, the pulse wave of this ranging computer vehicle or obstacle emission forwards specific wavelength, and accept the pulse signal that front vehicles reflects by a receiver, determine that by a time meter this pulse wave reflects the required time by being transmitted into, because the pulse velocity of wave propagation is known, thereby can understand the distance between two cars;
It also has a safety distance finder, and this safety distance finder is positioned at described shell, links to each other with described ranging computer, and it has a select switch, is positioned on the described shell, and it has third gear, i.e. spacing selection in two, three, four seconds shelves.
2. automobile safety distance alarm system as claimed in claim 1 is characterized in that it also has a read table, and read table can be positioned at described shell, also can be positioned on the instrument carrier panel of automobile, replaces original average speed indicator;
Read table comprises three parts: calibrated disc, apart from pointer and speed indicator;
Four layers of scale are arranged: the speed of ground floor (outmost turns) scale display automobile on the calibrated disc; Second layer scale display automobile keeps the required safety distance of two spacings in second with front vehicles under corresponding speed; The 3rd layer of scale display automobile keeps the required safety distance of three spacings in second with front vehicles under corresponding speed; The 4th layer of scale display automobile keeps the required safety distance of four spacings in second with front vehicles under corresponding speed.These two, three, four layers of scales also show following apart from the safety distance between two cars that pointer reflected;
Apart from pointer: be positioned at described calibrated disc top, it is a plastic disc-shaped structure, one tip-like projection is arranged on the edge, pointer for the indication distance, its surface has a fan-shaped sheetmetal mutually attached, the left side straight flange of this fan-shaped sheetmetal has a lead to link to each other with the safety distance selecting arrangement by fan-shaped sheetmetal near the line in the tip-like projection and the center of circle, can indicate the actual distance between two cars that measured by described ranging computer apart from pointer;
Speed indicator: be positioned at described top apart from pointer, it is a thin rod shape metal finger, there is a tuftlet metal brush below at its middle part, and pass through lead, link to each other with described siren horn, when the distance of two cars less than safety distance the time, the metal brush of speed indicator can touch the sheetmetal apart from pointer, this place's current circuit is connected, siren horn and automatically operated retarder are played a role.
3. automobile safety distance alarm system as claimed in claim 2, it is characterized in that it also has a siren horn, this siren horn is positioned at described shell, link to each other with described read table, it comprises a warning lamp and a loud speaker, when two spacings less than safety distance the time, warning lamp can be glittering, and loud speaker can send chimes of doom.
4. as automobile safety distance alarm system as described in the claim 3, it is characterized in that it also has an energy source switch, this energy switch is positioned on the described shell, its end links to each other with described automatic slow down device with described siren horn, the other end is by power supply and described ranging computer, described safety distance finder links to each other with described read table, after it is connected, whole safety distance alarm system place mode of operation, the energy of native system is from the battery of automobile, can directly circuit be connected on the automobile batteries or the socket that lights a cigarette by automobile provides on the power supply, the energy of native system also can be from additional battery.
5. automobile safety distance alarm system as claimed in claim 4, it is characterized in that it also has an automatically operated retarder and switch thereof, this switch is positioned on the described shell, by its switch, chaufeur can select whether to use this automatically operated retarder, whole automatic slow down device and described siren horn are connected in parallel in the current circuit, when two spacings less than safety distance, when siren horn is started working, automatically operated retarder is also started working, it can make car deceleration, to increase the distance between two cars, automatically operated retarder can pass through fuel shutoff path or self-actuating brake.
6. automobile safety distance alarm system as claimed in claim 5, it is except can be placed in the place ahead of automobile, as on the instrument desk or on the front bumper, outside the distance of measuring this automobile and front vehicles, can also be installed in the rear of automobile, on the middle and lower part or rear bumper as rear window, with the vehicle at monitoring rear whether with the own enough safety distances of vehicle maintenance, in case of necessity can by ad hoc warning light backward car send signal, remind the chaufeur of back car to maintain safe distance, prevent the generation of accident.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96116474 CN1174139A (en) | 1996-08-20 | 1996-08-20 | Automobile safety distance alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96116474 CN1174139A (en) | 1996-08-20 | 1996-08-20 | Automobile safety distance alarm system |
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| Publication Number | Publication Date |
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| CN1174139A true CN1174139A (en) | 1998-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 96116474 Pending CN1174139A (en) | 1996-08-20 | 1996-08-20 | Automobile safety distance alarm system |
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| Country | Link |
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| CN (1) | CN1174139A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222506A (en) * | 2010-04-15 | 2011-10-19 | 迪尔公司 | Context-based sound generation |
| CN102905942A (en) * | 2010-03-25 | 2013-01-30 | 日本先锋公司 | Simulated sound generation device and simulated sound generation method |
| CN104859537A (en) * | 2015-05-27 | 2015-08-26 | 张廷臣 | Safe car distance warning system and control method of safe car distance warning system |
| CN107300915A (en) * | 2016-04-14 | 2017-10-27 | 富士施乐株式会社 | Collision avoidance system and method, message processing device and method |
| CN108519047A (en) * | 2018-04-13 | 2018-09-11 | 山西八建集团有限公司 | A kind of darby |
-
1996
- 1996-08-20 CN CN 96116474 patent/CN1174139A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102905942A (en) * | 2010-03-25 | 2013-01-30 | 日本先锋公司 | Simulated sound generation device and simulated sound generation method |
| CN102905942B (en) * | 2010-03-25 | 2015-06-10 | 日本先锋公司 | Simulated sound generation device and simulated sound generation method |
| CN102222506A (en) * | 2010-04-15 | 2011-10-19 | 迪尔公司 | Context-based sound generation |
| CN104859537A (en) * | 2015-05-27 | 2015-08-26 | 张廷臣 | Safe car distance warning system and control method of safe car distance warning system |
| CN107300915A (en) * | 2016-04-14 | 2017-10-27 | 富士施乐株式会社 | Collision avoidance system and method, message processing device and method |
| CN108519047A (en) * | 2018-04-13 | 2018-09-11 | 山西八建集团有限公司 | A kind of darby |
| CN108519047B (en) * | 2018-04-13 | 2024-03-22 | 山西八建集团有限公司 | Scraping bar |
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