CN1046465C - Apparatus for preventing rear-end collision of movable body - Google Patents

Apparatus for preventing rear-end collision of movable body Download PDF

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Publication number
CN1046465C
CN1046465C CN95105575A CN95105575A CN1046465C CN 1046465 C CN1046465 C CN 1046465C CN 95105575 A CN95105575 A CN 95105575A CN 95105575 A CN95105575 A CN 95105575A CN 1046465 C CN1046465 C CN 1046465C
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CN
China
Prior art keywords
moving body
line part
conveyor line
receiving
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN95105575A
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Chinese (zh)
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CN1119156A (en
Inventor
石井泉
吉田俊三
大岛隆夫
木村隆则
植平真
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tsubakimoto Chain Co
Kokusai Denki Engineering Co Ltd
Original Assignee
Tsubakimoto Chain Co
Kokusai Denki Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tsubakimoto Chain Co, Kokusai Denki Engineering Co Ltd filed Critical Tsubakimoto Chain Co
Publication of CN1119156A publication Critical patent/CN1119156A/en
Application granted granted Critical
Publication of CN1046465C publication Critical patent/CN1046465C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • B61L23/08—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only
    • B61L23/14—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only automatically operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • B61L23/34—Control, warning or like safety means along the route or between vehicles or trains for indicating the distance between vehicles or trains by the transmission of signals therebetween

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Support Of Aerials (AREA)

Abstract

To prevent a collision with a precedent moving body by surely stopping a following moving body behind the precedent moving body at a specific interval.A travel path 1 is sectioned into plural closed sections N1-Nn at specific intervals L0 in its extension direction and a looped transmission circuit is embedded over the adjacent closed sections Ni and Nj. The looped transmission circuit is equipped with a transmission system transmission line part 11 and a reception system transmission line part 12 extending in parallel and a connection transmission line part 13 connecting them, and the connection transmission line part 13 is arranged crossing the travel path in the width direction at the boundary part between the adjacent closed sections Ni and Nj; and the transmission system transmission line part 11 is arranged closely to the left side of the travel path in the closed section Nj and the reception system transmission line part 12 is arranged closely to the right side of the travel path in the closed section Ni.

Description

The apparatus for preventing rear-end collision of moving body
The invention relates to the occasion passed through at moving bodys such as a large amount of electric cars, unmanned transfer cart are arranged in order to prevent that successive displacing body is to the device that knocks into the back of moving body in advance.
In the past, run foul of each other for fear of a large amount of unmanned transfer cart on same current road and particularly to knock into the back and it can be moved safely, extensively the method that adopts is to make set above distance and the current closed operation mode of being separated by between unmanned transfer cart.The closed operation mode is to set interval that is the closed interval that is certain-length in a large number continuously along current road, only allows the existence of a unmanned transfer cart in principle in a closed interval.
About this kind closed operation mode, there had been variety of way to be suggested in the past, they all adopt electromagnetic wave, light, super sonic etc. as signal transfer medium.
But this kind signal transfer medium cuts both ways, and uses electromagnetic occasion, not only easily cause mutual interference, sometimes also have electromagnetic wave and can't arrive part, no matter and adopt arbitrary mode of centralized control or decentralised control all to need equipment separately, cause equipment enlarging, complicated.Using the hypracoustic occasion, interference from ambient environment is easy to enter, and not only communication range is little, and is difficult in the processing of bend, level crossing, and the unmanned transfer cart that easily will go ahead of the rest of the unmanned transfer cart of back row and near the mutual misidentification of being located at the current road of various device, all this is all its shortcoming.
The present invention proposes for solving above-mentioned shortcoming, and its purpose is to provide a kind of apparatus for preventing rear-end collision of moving body, and not only equipment is simple for it, and construction cost is cheap, and must not have a power failure, and has high reliability.
Apparatus for preventing rear-end collision according to moving body of the present invention, be to have a large amount of moving bodys current on it on the current road that is distinguished into a plurality of closed intervals longer than the length of moving body, make the successive displacing body of following the moving body of going ahead of the rest and should go ahead of the rest and stop across being equivalent to this closed interval distance at least between moving body, prevent the device that knock into the back of successive displacing body, comprise along a plurality of loops transfer circuit of the road configuration of should passing through to this moving body of going ahead of the rest; Wherein: this loop transfer circuit has: sending end conveyor line part, the loop line extends parallel is formed, be located at the closed interval of the front side of the current direction that is positioned at this moving body in this adjacent closed interval, and be disposed at and the amesiality part of the Width that should current direction intersects on current road; Receiving end conveyor line part forms the loop line extends parallel, is located at the closed interval of the rear side that is positioned at this current direction, and is disposed at the deflection opposite side part of the Width on current road; And connect the conveyor line part, and the loop line extends parallel is formed, be configured in along the boundary member of this two closed interval and the direction on cross-section current road; And respectively this moving body has respectively: transmitting antenna is sent to the signal of set frequency the sending end conveyor line part of this each loop transfer circuit; Receiving wire is in order to receive the signal by the set frequency that moving body sent of going ahead of the rest from the receiving end conveyor line part of this each loop transfer circuit; And when receiving the signal of set frequency, this receiving wire uses so that the device that this moving body stops.
Therefore, when moving body is present in the closed interval in advance, set frequency from the moving body of going ahead of the rest partly sends the signal of promptly deciding frequency to the sending end conveyor line, this signal is transferred into the receiving end conveyor line part in the same circuit transfer circuit of a closed interval, the place ahead that extends this closed interval through connecting the conveyor line part, when successive displacing body enters closed interval, the place ahead, promptly decide the signal of frequency by its receiving wire reception, successive displacing body can be identified in advance in the receiving end conveyor line part in the place ahead that moving body exists, and can take the requisite measure in order to prevent to knock into the back.
The apparatus for preventing rear-end collision of moving body of the present invention be characterised in that its with so that the device that this moving body stops to have: in order to the device of the reception output voltage of this receiving wire of sensing; And the reception output voltage of institute's sensing is compared with a reference value, and when receiving output voltage, make the device of the signal that this moving body stops in order to output above a reference value.
Therefore, when successive displacing body surpasses a reference value at the reception output voltage that receives by its receiving wire, can moving body be stopped by the moving body stop signal output device, and can prevent from really to knock into the back.
Aforementioned purpose of the present invention or other purposes are described in detail with reference to the accompanying drawings with the feature of its novelty.
Fig. 1 is the schematic plan view of unmanned transfer cart of the apparatus for preventing rear-end collision of moving body of the present invention.
Fig. 2 is the constructed profile of the II-II line along Fig. 1.
Fig. 3 is for showing the scheme drawing according to the configuration status of loop of the present invention transfer circuit.
Fig. 4 is the enlarged drawing of Fig. 3.
Fig. 1 is the schematic plan view of the apparatus for preventing rear-end collision of display application unmanned transfer cart of the present invention.Fig. 2 is the constructed profile of the II-II line along Fig. 1.Fig. 3 is an instruction diagram, show bury underground along current road look the loop transfer circuit L that slightly becomes zigzag from the plane 1,2～L N-1, nConfiguration status, 1 is current road among the figure, 2 is unmanned transfer cart.
In current road 1, along its bearing of trend, with predetermined unmanned transfer cart 2 total lengths of ratio big be set a distance L 0(with reference to figure 4) is set with closed interval N 1～N n, cooperate this each closed interval N 1～N nDistance L 0Be equipped with loop transfer circuit L 1,2～L N-1, n, each loop transfer circuit is crossed over adjacent closed interval N i, N jEach two interval, each loop transfer circuit L 1,2～L N-1, nShape and configuration status all identical.Below just cross over along the adjacent closed interval N of the current direction of unmanned transfer cart 2 i, N jAnd the loop transfer circuit L that sets I, jBe illustrated.
Fig. 4 closes N for crossing over the closed area i, N jThe loop transfer circuit L that sets i, jAmplification view, the transmission lines that will constitute the loop is across set interval d 1Make its circuit pack parallel to each other and stretch, have each closed interval N in the distolateral setting of one 1～N nDistance L 0Sending end translator unit 11, have distance L in its another distolateral setting 0Receiving end transmit 12, and be situated between and be provided with the connection conveyor line part 13 at the interval between circuit pack.
Connect conveyor line part 13 along closed interval N i, N jBoundary portion towards the Width configuration on current road 1, and sending end conveyor line part 11 is at closed interval N j Current road 1 in extend configuration to a time closed interval N along the current direction of unmanned transfer cart 2 side that keeps left J+1Near; And receiving end conveyor line part 12 is at closed interval N i Current road 1 in, along its right side, and aforementioned sending end conveyor line part 11 between across parallel distance from d 2State under, extend configuration to previous closed interval N I+1Near, be embedded in respectively under the road surface on current road 1.
Adjacent loop transfer circuit L I, jWith L J, j+1Between, 12,12 of its 11,11 of sending end conveyor line part separately and receiving end conveyor line parts all across distance d 3Apart from d 1, d 2, d 3Suitably set so that the interference of signal does not take place to each other.
On the other hand, unmanned transfer cart 2 as shown in Figure 1 and Figure 2, current direction and arranged on left and right sides at car body 20 respectively is provided with driving defeated 21h, the 21r that holds concurrently and Gong turn to, and in the forward and backward loose wheel 22,22 that has, aforementioned each drive wheel 21h, 21r are linked to independently drive motor Mh, Mr.With two drive motor Mh, Mr just then advance, reverse and retreat, utilize the speed discrepancy of two drive motor Mh, Mr and implement and turn to.
23 is the current drive control part of unmanned transfer cart.
, be provided with transmitting antenna 24 in the bottom surface, left side, and be provided with receiving wire 25 near anterior place at car body 20 in the bottom surface, right side.Travel the state in the Central Line on current road 1 at unmanned transfer cart 2, as shown in Figure 2, transmitting antenna 24 is at loop transfer circuit L 1,2～L N, n+1Sending end conveyor line part 11 tops across interval d 4Relatively to, and receiving wire 25 is at loop circuit transfer circuit L 1,2～L N, n+1The top of receiving end conveyor line part 12 across interval d 4Relatively to.This interval d 4So long as 11 of transmitting antenna 24 and sending end conveyor line parts and get final product at receiving wire 25 and 12 intervals that can reach the transmitting-receiving of signal of receiving end conveyor line part, 12 of transmitting antenna 24 and 11 of sending end conveyor line parts and receiving wire 25 and receiving end conveyor line parts also must not align.
On car body 20, be equipped with and be connected in this transmitting antenna 24 in order to send the transmitter 26 that set frequency is the signal of f, and be connected in this receiving wire 25 in order to receiving the receptor 27 that set frequency is the signal of f, be connected with in this receptor 27 that it receives the voltage-sensor 28 of output voltage in order to sensing.
The output signal of this voltage-sensor 28 is output to current drive control part 23.
Voltage-sensor 28 has in order to reception output voltage that will sense and predetermined reference value comparator circuit (not shown) relatively, when receiving output voltage, do not export the reception output voltage, promptly current drive control part output is made the current signal that stops in case surpassing a reference value above a reference value.Aforementioned a reference value mainly is to set unlikely numerical value with noise etc. and the aforementioned set frequency signal generation misidentification that is f for to get final product.And also can replace comparator circuit and adopt only to stay and promptly decide the bandpass filter etc. that frequency is near the signal the f.
Secondly, the operating process of apparatus of the present invention is described.
As shown in Figure 3, suppose that 3 unmanned transfer cart F are arranged a, F b, F cBe present in closed interval N respectively j, N i, N 2On, current along the direction of arrow respectively, or be about to current.Under this state, from unmanned transfer cart F a, F b, F cEach 24 pairs of loops of transmitting antenna transfer circuit L I, j, L I-1, L 1,2Sending end conveyor line part 11 send the signal that set frequency is f respectively.
On the other hand, unmanned transfer cart F a, F b, F cReceiving wire 25 and loop transfer circuit L J, j+1, L I, j, L 2,3Receiving end conveyor line part 12 relatively to, but become the state that receive frequency is the signal of f.From unmanned transfer cart F dTo loop transfer circuit L I, jThe frequency that sent of sending end conveyor line part 11 be that the signal of f is sent to the loop transfer circuit L that is positioned at closed interval Ni via connecting conveyor line part 13 I, jReceiving end conveyor line part 12, by unmanned transfer cart F on the other side bReceiving wire 25 caught and got, and receive and sense the reception output voltage by voltage-sensor 28 by receptor 27.The output signal of receptor 27 is output to voltage-sensor 28, when voltage-sensor 28 surpasses predetermined reference value at the reception output voltage, and unmanned transfer cart F bThink and have unmanned transfer cart f in advance at closed interval N aSituation.
In this way, the unmanned transfer cart F of back row bPromptly stop unmanned transfer cart F with its current drive control part 23 control motor Mh, Mr dStop at closed interval N iOn, and can prevent that it is for the unmanned transfer cart F that goes ahead of the rest dKnock into the back.Transport F at nobody bUnmanned transfer cart F when stopping a, F bVehicle headway with unmanned transfer cart F aCurrent location and decide, the shortest is L 0, and the longest be 2L.
On the other hand, with unmanned transfer cart F cThe relative loop transfer circuit L of receiving wire 25 of closed interval 2,3Receiving end conveyor line part 12 on do not have other unmanned transfer carts and exist, so unmanned transfer cart F cMaintenance is current because not receiving the signal that frequency is f.
In the above-described embodiments, from unmanned transfer cart F a, F b, F cThough the frequency of the signal that sends of each transmitting antenna 24 all be illustrated with f, be not limited to this, can certainly be the signal that each unmanned transfer cart sent, received different frequency respectively.
Though more than just make closed interval N 1～N nDistance all be L 0In time, be illustrated, but also can adopt different distance.
In the above-described embodiments,, be not defined in this, also can be applicable to electric car etc. though be illustrated when just being object with unmanned transfer cart.
As mentioned above, in apparatus of the present invention, it is the sending end conveyor line part that a closed interval in adjacent two closed intervals that are set in current road is equipped with the loop transfer circuit, and be equipped with receiving end conveyor line part in another closed interval, in advance the moving body successive displacing body that the transmission signal that the loop transfer circuit sent is positioned at another receiving end conveyor line part in receiving end conveyor line part receives and the existence of the moving body of can correctly confirming to go ahead of the rest, about equipment, need only bury the loop transfer circuit underground gets final product, can utilize simple formation, also be not affected even take place to have a power failure, be not subjected to noise jamming and can correctly prevent to knock into the back etc., all this be all the superior effect that the present invention has.
More than, at enforcement state described in the item or the embodiment etc. of describing in detail of the present invention, purpose is all being illustrated technology contents of the present invention, the present invention only is not defined in this kind object lesson and does the explanation of narrow sense, in spirit of the present invention and the described category of claim, still can do various changes and implemented.

Claims (2)

1, a kind of apparatus for preventing rear-end collision of moving body, there are a plurality of moving bodys current on it the time on the current road that is distinguished into a plurality of closed intervals longer than the length of moving body, make the successive displacing body of following the moving body of going ahead of the rest and should go ahead of the rest and stop across the distance that is equivalent to this closed interval at least between moving body, to prevent successive displacing body to the knocking into the back of this moving body of going ahead of the rest, it comprises along disposing a plurality of loop transfer circuits in current road;
Wherein:
This loop transfer circuit has: sending end conveyor line part, the loop line extends parallel is formed, be located at the closed interval of the front side of the current direction that is positioned at this moving body in this adjacent closed interval, and be disposed at and the amesiality part of Width that should current direction intersects on current road; Receiving end conveyor line part forms the loop extends parallel, is located at the closed interval that is positioned at this current direction rear side, and is disposed at the Width deflection opposite side place on current road; And connect the conveyor line part, and the loop extends parallel is formed, be configured in along the boundary member of this two closed interval and the direction on cross-section current road; And
Respectively this moving body has respectively: transmitting antenna is sent to the signal of set frequency the sending end conveyor line part of this each loop transfer circuit; Receiving wire is in order to receive the signal by the set frequency that moving body sent of going ahead of the rest from the receiving end conveyor line part of this each loop transfer circuit; And when receiving the signal of set frequency, this receiving wire uses so that the device that this moving body stops.
2, the apparatus for preventing rear-end collision of moving body according to claim 1, wherein, with so that the device that this moving body stops to comprise: in order to the device of the reception output voltage of this receiving wire of sensing; And the reception output voltage of institute's sensing is compared with a reference value, and when receiving output voltage, make the device of the signal that this moving body stops in order to output above a reference value.
CN95105575A 1994-06-01 1995-05-29 Apparatus for preventing rear-end collision of movable body Expired - Fee Related CN1046465C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP6-120360 1994-06-01
JP6120360A JP2787190B2 (en) 1994-06-01 1994-06-01 Rear-end collision prevention device for moving objects
JP120360/94 1994-06-01

Publications (2)

Publication Number Publication Date
CN1119156A CN1119156A (en) 1996-03-27
CN1046465C true CN1046465C (en) 1999-11-17

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CN95105575A Expired - Fee Related CN1046465C (en) 1994-06-01 1995-05-29 Apparatus for preventing rear-end collision of movable body

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JP (1) JP2787190B2 (en)
KR (1) KR100196709B1 (en)
CN (1) CN1046465C (en)
TW (1) TW358786B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110879395B (en) * 2019-12-03 2022-09-09 北京百度网讯科技有限公司 Obstacle position prediction method and device and electronic equipment

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4926229A (en) * 1972-07-10 1974-03-08
JPS5731007A (en) * 1980-08-04 1982-02-19 Shinko Electric Co Ltd Collision preventing device of unattended inductive car

Also Published As

Publication number Publication date
JP2787190B2 (en) 1998-08-13
JPH07325621A (en) 1995-12-12
CN1119156A (en) 1996-03-27
TW358786B (en) 1999-05-21
KR100196709B1 (en) 1999-06-15
KR960000596A (en) 1996-01-25

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