CN104828686A - Protection device of escalator - Google Patents
Protection device of escalator Download PDFInfo
- Publication number
- CN104828686A CN104828686A CN201410046662.2A CN201410046662A CN104828686A CN 104828686 A CN104828686 A CN 104828686A CN 201410046662 A CN201410046662 A CN 201410046662A CN 104828686 A CN104828686 A CN 104828686A
- Authority
- CN
- China
- Prior art keywords
- escalator
- opto
- time
- electronic pickup
- fender guard
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
- B66B29/005—Applications of security monitors
Landscapes
- Escalators And Moving Walkways (AREA)
Abstract
The invention discloses a protection device of an escalator. The protection device comprises a protection box, and a photoelectric sensor and a signal processing device are fixedly arranged in the protection box; the photoelectric sensor collects signals and transmits the signals to the signal processing device; and the signal processing device processes the signals sent by the photoelectric sensor, and according to a processing result, an instruction is sent to an escalator control system, so that the escalator is slowly stopped or urgently stopped. According to the invention, it can be ensured that before injury accidents happen, passengers with risks of the crushing injury can be accurately detected; and according to the positions where the passengers are located, the voice prompt or the stopping is selected, so that the protection effect is achieved.
Description
Technical field
The present invention relates to a kind of annex of escalator, be specifically related to a kind of fender guard of escalator.
Background technology
Escalator in use, health leans out outside handrail because carelessness misses by passenger (especially child), along with escalator moves to the angle that angle between escalator and storey floors or two crossed escalators formed, be very easy to the injury accident that folder people occurs.It is for the passenger be hurt or staircase manager or the production firm of escalator all can produce immeasurable loss that this type of accident one goes out.
A.2.4 regulation is saved in the GB16899-2011 " manufacture and the installation safety standard of escalator and moving sidewalk " of new promulgation, between floor infall and each escalator arranged in a crossed manner or moving sidewalk, a vertical apron without sharpened edge should be set above handrail, it highly should not be less than 0.3m, and at least extend to handrail lower edge 25mm place, such as: the set square adopting one piece of atresia.
The health being certainly about to lean out handrail after passenger bumps against this apron is regained, and these class methods health can not occur by situation about crushing when escalator high-speed cruising, but being in hazardous location by collision reminding passengers can bring misery to passenger.
Therefore the improper of passenger is taken to need a kind of fender guard to detect before the collision.Japanese Unexamined Patent Publication 10-297865 publication discloses a kind of fender guard, can along the handrail installing infradred sensor or millimeter wave sensor of escalator, and detection passenger takes situation on handrail, and plays and note broadcast.Although these class methods can detect that object is in insecure area before the collision, but can not distinguish this object be with escalator motion human body or the fixed object as building bearing beam and so on, therefore voice reminder can only be made, the running state of escalator can not be intervened, still likely collide or press from both sides people's accident.
Therefore claimed device can distinguish object to be detected whether along with escalator moves to infall.Chinese invention patent CN101676188B discloses a kind of fender guard of escalator, and this device can detect the error state of passenger as early as possible and carry out necessary attention prompting.Its angle portion between escalator with ceiling or between two escalators intersected is provided with fender; fender is provided with pick up camera; and fender guard has the exception image procossing mechanism of taking carrying out preparation property detection passenger according to the image of this pick up camera; when being judged to be that passenger takes extremely, playing the operation pointed out broadcast or make escalator and stopping or slow stopping.Although these class methods can detect that object was in insecure area before collision, and can the motion of judgment object, image processing algorithm is complicated, relatively high to whole protection system performance requriements; And image is two-dimentional category, the mobile in three dimensional space can accurately not judged in the detection of reality, be easily subject to external factor interference.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of fender guard of escalator, and it can protect the safety of passenger while not affecting passenger's travelling comfort.
For solving the problems of the technologies described above, the technical solution of the fender guard of escalator of the present invention is:
Comprise protection box, protection box internal fixtion is provided with opto-electronic pickup, signal processor unit, and opto-electronic pickup collection signal also passes to signal processor unit; Signal processor unit processes the signal that opto-electronic pickup sends, and sends instruction according to result to control system for escalator, makes the slow parking of escalator or suddenly stops; Opto-electronic pickup is launched every the set time and is received x light beams, x>=1, and the object that the Time Calculation come and gone according to light beam is detected and opto-electronic pickup are along the minor increment d in handrail direction
min; Opto-electronic pickup is by minor increment d
minbe sent to signal processor unit every the set time, signal processor unit passes through the minor increment d of more adjacent twice
minvalue judges, if minor increment d
minreduce in time, be then judged to be that passenger has by the risk crushed, now fender guard action; If minor increment d
mindo not change in time, be considered as object interference and do not responded; According to minor increment d
minthe size of value sets different protection class, different protection class take difference (as only voice reminder, voice reminder and slowly to stop, voice reminder and suddenly to stop) protected mode.
Described minor increment d
minmethod of calculating as follows:
Wherein, t
come and go minfor the minimum time that light beam comes and goes, c is the light velocity; d
mindesign accuracy be cm level;
Or,
Wherein, t
come and go min1, t
come and go min2..., t
come and go minkfor k the minimum time that light beam comes and goes, k>=2;
Or,
Wherein, t
come and go min1, t
come and go min2..., t
come and go minkfor k the minimum time that light beam comes and goes, k>=2.
The establishing method of described protection class is: opto-electronic pickup launch and the x light beams received form protection domain, this protection domain is the exterior lateral area of handrail; Protection domain is divided into n region according to object and opto-electronic pickup along the size of the distance in handrail direction, and the maximum range value of each region and opto-electronic pickup is set to the threshold value d in this region
n, wherein n is the sequence number of protection zone, n>=1; If d
n-1< d
min≤ d
n, or 0 < d during n=1
min≤ d
1, be then judged to be that object falls into the n-th protection zone, at setting-up time t
nmiddle d
minto drop within the scope of this always and remain and reduce then fender guard action; Wherein, the protected mode of different brackets is taked according to the distance of protection zone and opto-electronic pickup.
Described signal processor unit passes through the minor increment d of more adjacent twice
minthe method that value carries out judging is as follows:
If d
mindecrease is less than setting threshold d in time
0then be judged as interference;
If d
mindecrease is more than or equal to setting threshold d in time
0then be judged to be d
minreduce, namely there is the motion near opto-electronic pickup in object; To d
mincurrency judge:
If d
n-1< d
min≤ d
n, be then considered as object and fall into the n-th protection zone, judge d by the n-th time meter
mindrop on this region and ever-reduced time length exceedes setting-up time t
nthen enter the n-th safe condition;
If d
minthrough judging that not belonging to above-mentioned any situation is then judged to be that fender guard lost efficacy, then escalator is anxious stops.
Described setting threshold d
0method of calculating be:
d
0=v×t
S1
Wherein, v is the nominal speed of escalator, t
s1for the interval time of opto-electronic pickup launch and accept light beam.
Described n-th safe condition refers to: signal processor unit sends instruction to control system for escalator, and control sound broadcasting device sends alarm, disconnection escalator safety return circuit makes escalator suddenly stop, control the slow parking of escalator.
Described setting-up time t
nmethod of calculating be:
As n > 1, t
n=(d
n-d
n-1)/v × coefficient
As n=1, t
1=d
1/ v × coefficient
Wherein, v is the nominal speed of escalator, unit m/s; The span of coefficient is 0 ~ 0.5.
Described signal processor unit is connected with sound broadcasting device; Sound broadcasting device is fixedly installed in protection box, and sound broadcasting device is for playing alarm voice with reminding passengers.
The technique effect that the present invention can reach is:
The present invention can ensure to detect exactly and crushed the passenger of risk before generation injury accident, according to the different choice voice reminder of passenger present position or stop with the effect playing protection.
The present invention can to utilize in three dimensional space distance value more intuitively to judge the state of kinematic motion of object to be detected, prevent from detecting that the fixed objects such as such as civil engineering bearing beam produce interference to judgement, also therefore, it is possible to intervene escalator operation state according to the hazard level of testing result, before the injury that collides, control the slow parking of escalator or suddenly stop.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the installation site schematic diagram of the fender guard of escalator of the present invention;
Fig. 2 is inner structure schematic diagram of the present invention;
Fig. 3 is principle of work schematic diagram of the present invention;
Fig. 4 is the scope schematic diagram of each protection zone of embodiments of the invention.
Description of reference numerals in figure:
1 is protection box, and 2 is opto-electronic pickup,
3 is signal processor unit, and 4 is sound broadcasting device,
5 is handrail, and 6 is step,
7 is passenger, and 8 is building bearing beam,
9 is storey floors.
Detailed description of the invention
As shown in Figure 1, the fender guard of escalator of the present invention, comprise protection box 1, the box like structure of hollow that protection box 1 forms for fender and side plate, be arranged on the Delta Region between angle between escalator with storey floors 9 or two escalators intersected;
As shown in Figure 2, protection box 1 internal fixtion is provided with opto-electronic pickup 2, signal processor unit 3, sound broadcasting device 4, and opto-electronic pickup 2 is installed on fender, passes to signal processor unit 3 for collection signal; Signal processor unit 3 processes for the signal sent opto-electronic pickup 2, and sends instruction according to judged result to control system for escalator, makes the slow parking of escalator or suddenly stops; Signal processor unit 3 is connected with sound broadcasting device 4, when the passenger 7 stood on step 6 is in insecure area, sound broadcasting device 4 can play the effect of warning, when signal processor unit 3 judge passenger 7 have crushed risk time, sound broadcasting device 4 sends voice reminder, and warning passenger 7 is in insecure area; Fender is provided with speaker hole, and sound broadcasting device 4 is just to speaker hole;
During escalator operation, opto-electronic pickup 2 is every set time t
s1(t
s1adjustable) to launch and receive x light beams (x>=1), the object that the Time Calculation come and gone according to light beam is detected and opto-electronic pickup 2 are along the distance d in handrail 5 direction
1, d
2d
x(x>=1), obtains minor increment d by comparing
min;
Minor increment d
minmethod of calculating as follows:
Wherein, t
come and go minfor the minimum time that light beam comes and goes, c is the light velocity; d
mindesign accuracy be cm level;
Or,
Wherein, t
come and go min1, t
come and go min2..., t
come and go minkfor k the minimum time that light beam comes and goes, k>=2;
Or,
Wherein, t
come and go min1, t
come and go min2..., t
come and go minkfor k the minimum time that light beam comes and goes, k>=2.
The minor increment d that opto-electronic pickup 2 will calculate
minevery set time t
s2(t
s2adjustable) be sent to signal processor unit 3, signal processor unit 3 passes through the minor increment d of more adjacent twice
minvalue judges, if minor increment d
minreduce in time, be then judged to be that passenger 7 has by the risk crushed, now fender guard action; If minor increment d
mindo not change in time, be considered as object interference and do not responded;
According to minor increment d
minthe size of value sets different protection class, different protection class take only voice reminder, voice reminder and slow to stop, voice reminder and the anxious protected mode such as to stop.
The establishing method of protection class is:
Opto-electronic pickup 2 launch and the x light beams received form protection domain, this protection domain is the exterior lateral area of handrail 5; Protection domain is divided into n region according to object and opto-electronic pickup 2 along the size of the distance in handrail 5 direction, and the maximum range value of each region and opto-electronic pickup 2 is set to the threshold value d in this region
n(n is the sequence number of protection zone, n>=1); If d
n-1< d
min≤ d
n(as n=1 0 < d
min≤ d
1), be then judged to be that object falls into the n-th protection zone, at setting-up time t
nmiddle d
minto drop within the scope of this always and remain and reduce then fender guard action; Wherein, the protected mode of different brackets is taked according to the distance of protection zone and opto-electronic pickup 2 and hazard level.
As shown in Figure 3, protection domain can be set as three grades, i.e. the 3rd protection zone, the second protection zone, the first protection zone; If there is object to enter arbitrary region in three, opto-electronic pickup 2 has been judged to be that object is in insecure area.
Signal processor unit 3 is according to the minor increment d of adjacent twice
minthe method that value carries out judging is as follows:
If d
mindecrease is less than setting threshold d in time
0then be judged as interference;
Setting threshold d
0method of calculating be:
d
0=v×t
S1
Wherein, v is the nominal speed of escalator, t
s1for the interval time of opto-electronic pickup 2 launch and accept light beam;
If d
mindo not change, as but building bearing beam 8 to drop in protection domain d
mindo not change, be then judged to be that interference does not respond;
If d
mindecrease is more than or equal to setting threshold and is then judged to be d in time
minreduce, namely there is the motion near opto-electronic pickup 2 in object; To d
mincurrency judge:
If d
2< d
min≤ d
3, be then considered as object and fall into the 3rd protection zone, judge d by the 3rd time meter
mindrop on this region and ever-reduced time length exceedes setting-up time t
3then enter the 3rd safe condition;
If d
1< d
min≤ d
2, be then considered as object and fall into the second protection zone, judge d by the second time meter
mindrop on this region and ever-reduced time length exceedes setting-up time t
2then enter the second safe condition;
If 0 < d
min≤ d
1, be then considered as object and fall into the first protection zone, judge d by the first time meter
mindrop on this region and ever-reduced time length exceedes setting-up time t
1then enter the first safe condition;
If d
minthrough judging that not belonging to above-mentioned any situation is then judged to be that fender guard lost efficacy, then escalator is anxious stops.
First safe condition: signal processor unit 3 to control system for escalator send instruction, control sound broadcasting device 4 send alarm (please hold the hand rail and take care) disconnects simultaneously escalator safety return circuit make escalator urgency stop;
Second safe condition: signal processor unit 3, to control system for escalator transmission instruction, controls sound broadcasting device 4 and sends alarm (wish full boarding good health, health is not leant out handrail outer) the slow parking of control escalator simultaneously;
3rd safe condition: signal processor unit 3 sends instruction to control system for escalator, controls sound broadcasting device 4 and sends alarm (wish full boarding good health, health is not leant out handrail outer).
The present invention is before generation injury accident; detected by opto-electronic pickup and calculate the distance of passenger and sensor; passenger moving state is judged by signal processor unit; be judged to crush risk when passenger is at proximity transducer; distance according to passenger and sensor takes different brackets protected mode, be respectively only voice reminder, voice reminder and slow to stop, voice reminder and suddenly to stop.
For the escalator that a nominal speed is 0.5m/s, as shown in Figure 4, the maximum detecting distance of sensor is 4m, if d
minin setting-up time 20ms, decrease is not less than setting threshold 1cm, be then judged to be that the motion near opto-electronic pickup 2 occurs object, to d
mincurrency judge:
If 1.5m < is d
min≤ 4m and d
minever-reduced time length along handrail direction overall length 4m-1.5m=2.5m more than this segment protect region of 1s(, needs spended time t=2.5/0.5=5s through this region, gets t
3=0.2t=1s, below algorithm identical) then voice device report to the police;
If 0.5m < is d
min≤ 1.5m and d
minever-reduced time length more than 0.4s then voice device to report to the police and escalator is slow stops;
If 0m < is d
min≤ 0.5m and d
minever-reduced time length more than 0.2s then voice device to report to the police and escalator is anxious stops.
In literary composition, the unit of unreceipted physical quantity is International System of Units.
Claims (8)
1. a fender guard for escalator, is characterized in that: comprise protection box, and protection box internal fixtion is provided with opto-electronic pickup, signal processor unit, and opto-electronic pickup collection signal also passes to signal processor unit; Signal processor unit processes the signal that opto-electronic pickup sends, and sends instruction according to result to control system for escalator, makes the slow parking of escalator or suddenly stops;
Opto-electronic pickup is launched every the set time and is received x light beams, x>=1, and the object that the Time Calculation come and gone according to light beam is detected and opto-electronic pickup are along the minor increment d in handrail direction
min;
Opto-electronic pickup is by minor increment d
minbe sent to signal processor unit every the set time, signal processor unit passes through the minor increment d of more adjacent twice
minvalue judges, if minor increment d
minreduce in time, be then judged to be that passenger has by the risk crushed, now fender guard action; If minor increment d
mindo not change in time, be considered as object interference and do not responded;
According to minor increment d
minthe size of value sets different protection class, and different protection class takes different protected modes.
2. the fender guard of escalator according to claim 1, is characterized in that: described minor increment d
minmethod of calculating as follows:
Wherein, t
come and go minfor the minimum time that light beam comes and goes, c is the light velocity; d
mindesign accuracy be cm level;
Or,
Wherein, t
come and go min1, t
come and go min2..., t
come and go minkfor k the minimum time that light beam comes and goes, k>=2;
Or,
Wherein, t
come and go min1, t
come and go min2..., t
come and go minkfor k the minimum time that light beam comes and goes, k>=2.
3. the fender guard of escalator according to claim 1, is characterized in that: the establishing method of described protection class is:
Opto-electronic pickup launch and the x light beams received form protection domain, this protection domain is the exterior lateral area of handrail; Protection domain is divided into n region according to object and opto-electronic pickup along the size of the distance in handrail direction, and the maximum range value of each region and opto-electronic pickup is set to the threshold value d in this region
n, wherein n is the sequence number of protection zone, n>=1; If d
n-1< d
min≤ d
n, or as n=1 0 < d
min≤ d
1, be then judged to be that object falls into the n-th protection zone, at setting-up time t
nmiddle d
minto drop within the scope of this always and remain and reduce then fender guard action; Wherein, the protected mode of different brackets is taked according to the distance of protection zone and opto-electronic pickup; d
nunit m.
4. the fender guard of the escalator according to claim 1 or 3, is characterized in that: described signal processor unit passes through the minor increment d of more adjacent twice
minthe method that value carries out judging is as follows:
If d
mindecrease is less than setting threshold d in time
0then be judged as interference;
If d
mindecrease is more than or equal to setting threshold d in time
0then be judged to be d
minreduce, namely there is the motion near opto-electronic pickup in object; To d
mincurrency judge:
If d
n-1< d
min≤ d
n, be then considered as object and fall into the n-th protection zone, judge d by the n-th time meter
mindrop on this region and ever-reduced time length exceedes setting-up time t
nthen enter the n-th safe condition;
If d
minthrough judging that not belonging to above-mentioned any situation is then judged to be that fender guard lost efficacy, then escalator is anxious stops.
5. the fender guard of escalator according to claim 4, is characterized in that: described setting threshold d
0method of calculating be:
d
0=v×t
S1
Wherein, v is the nominal speed of escalator, unit m/s, t
s1for the interval time of opto-electronic pickup launch and accept light beam, unit s.
6. the fender guard of escalator according to claim 4; it is characterized in that: described n-th safe condition refers to: signal processor unit sends instruction to control system for escalator, control sound broadcasting device sends alarm, disconnection escalator safety return circuit makes escalator suddenly stop, control the slow parking of escalator.
7. the fender guard of escalator according to claim 4, is characterized in that: described setting-up time t
nmethod of calculating be:
As n > 1, t
n=(d
n-d
n-1)/v × coefficient
As n=1, t
1=d
1/ v × coefficient
Wherein, v is the nominal speed of escalator, unit m/s; The span of coefficient is 0 ~ 0.5.
8. the fender guard of escalator according to claim 1, is characterized in that: described signal processor unit is connected with sound broadcasting device; Sound broadcasting device is fixedly installed in protection box, and sound broadcasting device is for playing alarm voice with reminding passengers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410046662.2A CN104828686A (en) | 2014-02-10 | 2014-02-10 | Protection device of escalator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410046662.2A CN104828686A (en) | 2014-02-10 | 2014-02-10 | Protection device of escalator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104828686A true CN104828686A (en) | 2015-08-12 |
Family
ID=53806955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410046662.2A Pending CN104828686A (en) | 2014-02-10 | 2014-02-10 | Protection device of escalator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104828686A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368472A (en) * | 2018-12-26 | 2019-02-22 | 杭州斯沃德电梯有限公司 | A kind of anti-pinch object space method, anti-pinch object system and the computer equipment of escalator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59198378A (en) * | 1983-04-27 | 1984-11-10 | Nissan Motor Co Ltd | Optical radar equipment |
| JP2000169071A (en) * | 1998-12-04 | 2000-06-20 | Hitachi Building Systems Co Ltd | Safety device for escalator |
| CN101456518A (en) * | 2007-12-10 | 2009-06-17 | 株式会社日立制作所 | Safe device and safe control method of passenger conveyer |
| CN101676188A (en) * | 2008-09-17 | 2010-03-24 | 株式会社日立制作所 | Protection device of escalator |
| JP2012041175A (en) * | 2010-08-23 | 2012-03-01 | Mitsubishi Electric Engineering Co Ltd | Escalator |
| CN102642763A (en) * | 2012-05-12 | 2012-08-22 | 博朗电梯(漳州)有限公司 | Intelligent escalator scissors angle safety protection system |
-
2014
- 2014-02-10 CN CN201410046662.2A patent/CN104828686A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59198378A (en) * | 1983-04-27 | 1984-11-10 | Nissan Motor Co Ltd | Optical radar equipment |
| JP2000169071A (en) * | 1998-12-04 | 2000-06-20 | Hitachi Building Systems Co Ltd | Safety device for escalator |
| CN101456518A (en) * | 2007-12-10 | 2009-06-17 | 株式会社日立制作所 | Safe device and safe control method of passenger conveyer |
| CN101676188A (en) * | 2008-09-17 | 2010-03-24 | 株式会社日立制作所 | Protection device of escalator |
| JP2012041175A (en) * | 2010-08-23 | 2012-03-01 | Mitsubishi Electric Engineering Co Ltd | Escalator |
| CN102642763A (en) * | 2012-05-12 | 2012-08-22 | 博朗电梯(漳州)有限公司 | Intelligent escalator scissors angle safety protection system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368472A (en) * | 2018-12-26 | 2019-02-22 | 杭州斯沃德电梯有限公司 | A kind of anti-pinch object space method, anti-pinch object system and the computer equipment of escalator |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150812 |
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| RJ01 | Rejection of invention patent application after publication |