CN103204425A - Reversion detecting device and method for escalator - Google Patents
Reversion detecting device and method for escalator Download PDFInfo
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- CN103204425A CN103204425A CN2013100868753A CN201310086875A CN103204425A CN 103204425 A CN103204425 A CN 103204425A CN 2013100868753 A CN2013100868753 A CN 2013100868753A CN 201310086875 A CN201310086875 A CN 201310086875A CN 103204425 A CN103204425 A CN 103204425A
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Abstract
The invention discloses a reversion detecting device and method for an escalator. The reversion detecting device comprises a first detecting device, a second detecting device and a D trigger, the first detecting device and the second detecting device are arranged on one side of a main engine driving wheel of the escalator, and the D trigger is respectively connected with the first detecting device and the second detecting device. The first detecting device and the second detecting device are sequentially arranged in a forward rotating direction of the main engine driving wheel, a CP end of the D trigger is connected with the first detecting device, and a D end of the D trigger is connected with the second detecting device. According to the reversion detecting device and method for the escalator, whether signals sent by the first detecting device lag behind signals sent by the second detecting device or not can be determined through high-low electrical levels output by a Q end of the D trigger, and then whether reversion of the escalator occurs or not can be accurately determined. By means of the reversion detecting device and method for the escalator, the hardware D trigger has the advantages that the response speed is high, and the reliability is good, phase difference between the first detecting device and the second detecting device is not required to be considered, erroneous judgment is avoided, and defects of a 'microprogrammed control unit (MCU) sampling and software computing' method are avoided.
Description
Technical field
The present invention relates to electronic information field, particularly a kind of reverse detecting device and method of escalator.
Background technology
Staircase reverses and to refer to staircase when up because host driven wheel chain fracture or come off, and to make staircase swerve descending because of staircase deadweight and passenger's weight, and will cause serious equipment and personal safety accident as if can not in time stopping ladder this moment.The national Specification staircase must be installed the reverse detecting device, guarantees that staircase brakes immediately to stop ladder and make the additional brake action when reverse taking place.
At present, Chang Yong reverse method of inspection has two kinds:
A kind of be install on gear 200 right sides of the host driven of escalator wheel 100 following two near switch A, B, as shown in Figure 1, when host driven takes turns 100 when up, just being made as changes, and near switch A induction is arranged earlier, the output useful signal, useful signal output near switch B lags behind near switch A, that is to say that escalator is up when just changeing, and is ahead of the signal near switch B near the switch a-signal; When escalator was descending, 100 counter-rotatings of host driven wheel just were ahead of near switch A near the useful signal of switch B.Therefore, if the signal near switch B is ahead of near switch A in the up process of escalator, just can think that staircase takes a turn for the worse.In this method, normally gather signal near switch A, B by MCU, and analyze phase relation between them by software.It covers end has: 1. require the MCU sampling rate to want high, signal can not be lost; 2. the phase relation near switch A, B two signals is to calculate by software, when differing when spending near 180, just be difficult to judge who leading who lag behind, so cause erroneous judgement sometimes.
Another kind is at the main drive shaft of escalator bidirectional switch to be installed to detect the up-downgoing pulse, when pulse train and prescribed direction occurring when inconsistent, reverse namely occurs.Signal was for continuing the low level staircase when escalator real-world operation direction was up, and the real-world operation direction when being descending signal be recurrent pulses.This method is also wanted acquisition pulse and is calculated, and causes erroneous judgement equally easily.
Summary of the invention
The invention provides a kind of reverse detecting device and method of escalator, to overcome escalator easy problem that erroneous judgement takes place in reversing testing process in the prior art.
For solving the problems of the technologies described above, the invention provides a kind of reverse detecting device of escalator, comprise: the d type flip flop that is arranged on first detector that the escalator host driven takes turns a side and second detector and links to each other with described first, second detector respectively, wherein, described first detector and second detector set gradually along the positive veer of described host driven wheel, the CP end of described d type flip flop links to each other with described first detector, and the D end of described d type flip flop links to each other with described second detector.
As preferably, in the reverse detecting device of described escalator, described first detector and second detector adopt near switch respectively.
As preferably, in the reverse detecting device of described escalator, described first detector and second detector adopt sensor respectively.
The present invention also provides a kind of reverse method of inspection of escalator, is applied to comprise in the reverse detecting device of described escalator: the host driven wheel rotates, and first detector and second detector pass to signal described d type flip flop respectively; According to the height of d type flip flop Q end outgoing level, judge whether escalator reverses.
As preferably, in the reverse method of inspection of described escalator, when the Q of described d type flip flop end was output as low level, escalator just changeed; When the Q end of described d type flip flop was output as high level, escalator reversed.
As preferably, in the reverse method of inspection of described escalator, described first detector has gear and gearless through out-of-date at the host driven wheel, is respectively high level and low level.
As preferably, in the reverse method of inspection of described escalator, described second detector has gear and gearless through out-of-date at the host driven wheel, is respectively high level and low level.
Compared with prior art, the present invention has the following advantages: reverse detecting device and the method for escalator of the present invention, this device comprises: be arranged on the d type flip flop that the escalator host driven is taken turns first, second detector of a side and linked to each other with described first, second detector respectively.Wherein, described first detector and second detector set gradually along the positive veer of described host driven wheel, and the CP end of described d type flip flop links to each other with described first detector, and the D end of described d type flip flop links to each other with described second detector.The high-low level of the Q end output of the present invention by d type flip flop just can be judged whose leading whose hysteresis of signal that first detector and second detector send, and just can judge accurately also whether escalator reverse has taken place.It is fast that the hardware d type flip flop that the present invention adopts has speed of response, and the characteristics of good reliability need not to consider the problem that differs between first, second detector, can not cause erroneous judgement, have thoroughly avoided the drawback with " the MCU sampling adds software and calculates " method.
Description of drawings
Fig. 1 is the structural representation of the reverse detecting device of a kind of escalator in the prior art;
Fig. 2 is the structural representation of the reverse detecting device of escalator in the embodiment of the invention;
Fig. 3 a～3b is respectively the signal impulse figure that sends of escalator first detecting device and second detecting device when rotating and reverse.
Among Fig. 1: 100-host driven wheel, 200-gear, A/B-are near switch.
Among Fig. 2: 10-first detector, 20-second detector, 30-D binary pair, 40-host driven wheel, 50-gear.
The specific embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.It should be noted that accompanying drawing of the present invention all adopts the form of simplification and all uses non-ratio accurately, only in order to convenient, the purpose of the aid illustration embodiment of the invention lucidly.
The reverse detecting device of escalator provided by the invention, shown in Fig. 2～3b, comprising: be arranged on the escalator host driven and take turns first, second detector 10 of 40 1 sides, 20 and the d type flip flop 30 that links to each other with described first, second detector 10,20 respectively.Wherein, described first detector 10 and second detector 20 set gradually along the positive veer of described host driven wheel 40, that is to say, when host driven wheel 40 is just changeing, gear 50 on the host driven wheel 40 at first arrives the position of first detector, 10 correspondences, arrives described second detector 20 corresponding positions then, namely, when escalator normally moved, first detector 10 sent signal prior to second detector 20; The CP end of described d type flip flop 30 links to each other with described first detector 10, and the D end of described d type flip flop 30 links to each other with described second detector 20.Particularly, during signal that the signal that sends when first detector 10 sends early than second detector 20, Q holds output low level, and at this moment, escalator is the up state that just changeing, and that is to say that escalator normally moves.When the signal that sends when first detector 10 is later than the signal that described second detector 20 sends, Q end output high level, at this moment, escalator is the reverse state, need promptly stop escalator.Therefore, by the high-low level of Q end output namely can judge signal that first detector 10 and second detector 20 send who leading who lag behind, just can judge accurately also whether escalator reverse has taken place.It is fast that the hardware d type flip flop 30 that the present invention adopts has speed of response, the characteristics of good reliability, need not to consider the problem that differs between first, second detector 10,20, can not cause erroneous judgement, thoroughly avoided the drawback with " the MCU sampling adds software and calculates " method.
Need to prove that because described host driven wheel 40 is provided with a plurality of gears 50, the gear 50 described in the present invention is a certain fixed gear wheel 50 on the described host driven wheel 40, the present invention does not do restriction to the mode of choosing of gear 50.
Preferable, please continue with reference to Fig. 2, described first detector 10 and second detector 20 adopt near switch or sensor respectively, all be by responding to the device that gear 50 on the host driven wheel 40 is converted into signal output near switch and sensor, has the susceptibility height, the advantage of the low and high efficiency of energy consumption.
Please continue with reference to Fig. 2～3, the present invention also provides a kind of reverse method of inspection of escalator, is applied to comprise in the reverse detecting device of described escalator:
Host driven wheel 40 rotates, first detector 10 and second detector 20 pass to signal described d type flip flop 30 respectively, certainly, the rotation direction difference of host driven wheel 40, it is also different that first, second detector 10,20 sends the sequencing of signal, under two kinds of different situations, the signal graph that first, second detector 10,20 sends is respectively shown in Fig. 3 a and Fig. 3 b;
According to the height of d type flip flop 30Q end outgoing level, judge whether escalator reverses, particularly, when the Q of described d type flip flop 30 end was output as low level, escalator just changeed; When the Q end of described d type flip flop 30 was output as high level, escalator reversed.
Preferable, described first detector 10 is respectively high level and low level gear 50 and gearless 50 being arranged through out-of-date; Described second detector 20 is respectively high level and low level gear 50 and gearless 50 being arranged through out-of-date.
Need to prove, because the coder of elevator traction machine is also exported as first, second detector 10,20 similar two paths of signals, the present invention also can be used for judging the upstream or downstream direction of automatic elevator, and just the phase relation by two paths of signals (signal leading with lag behind) judges that motor is just to change or reverse.
In sum, reverse detecting device and the method for a kind of escalator provided by the invention, this device comprises: be arranged on the escalator host driven and take turns first, second detector 10 of 40 1 sides, 20 and the d type flip flop 30 that links to each other with described first, second detector 10,20 respectively.Wherein, described first detector 10 and second detector 20 set gradually along the positive veer of described host driven wheel 40, the CP end of described d type flip flop 30 links to each other with described first detector 10, and the D end of described d type flip flop 30 links to each other with described second detector 20.The high-low level of the Q end output of the present invention by d type flip flop 30 just can be judged whose leading whose hysteresis of signal that first detector 10 and second detector 20 send, and just can judge accurately also whether escalator reverse has taken place.It is fast that the hardware d type flip flop 30 that the present invention adopts has speed of response, the characteristics of good reliability, need not to consider the problem that differs between first, second detector 10,20, can not cause erroneous judgement, thoroughly avoided the drawback with " the MCU sampling adds software and calculates " method.
Obviously, those skilled in the art can carry out various changes and modification to invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these revise and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these change and modification.
Claims (7)
1. the reverse detecting device of an escalator, it is characterized in that, comprise: be arranged on the d type flip flop that the escalator host driven is taken turns first, second detector of a side and linked to each other with described first, second detector respectively, wherein, described first detector and second detector set gradually along the positive veer of described host driven wheel, the CP end of described d type flip flop links to each other with described first detector, and the D end of described d type flip flop links to each other with described second detector.
2. the reverse detecting device of escalator as claimed in claim 1 is characterized in that, described first detector and second detector adopt near switch respectively.
3. the reverse detecting device of escalator as claimed in claim 1 is characterized in that, described first detector and second detector adopt sensor respectively.
4. the reverse method of inspection of an escalator is applied to it is characterized in that in the reverse detecting device as each described escalator of claim 1～3, comprising:
The host driven wheel rotates, and first detector and second detector pass to signal described d type flip flop respectively;
According to the height of d type flip flop Q end outgoing level, judge whether escalator reverses.
5. the reverse method of inspection of escalator as claimed in claim 4 is characterized in that, when the Q end of described d type flip flop was output as low level, escalator just changeed; When the Q end of described d type flip flop was output as high level, escalator reversed.
6. the reverse method of inspection of escalator as claimed in claim 4 is characterized in that, described first detector has gear and gearless through out-of-date at the host driven wheel, is respectively high level and low level.
7. the reverse method of inspection of escalator as claimed in claim 6 is characterized in that, described second detector has gear and gearless through out-of-date at the host driven wheel, is respectively high level and low level.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100868753A CN103204425A (en) | 2013-03-19 | 2013-03-19 | Reversion detecting device and method for escalator |
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| CN2013100868753A CN103204425A (en) | 2013-03-19 | 2013-03-19 | Reversion detecting device and method for escalator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989932A (en) * | 2015-07-17 | 2015-10-21 | 苏州富士电梯有限公司 | Installation tool for anti-reversal detection device on escalator or moving walk |
| CN108609472A (en) * | 2018-07-16 | 2018-10-02 | 上海昶屹机电科技有限公司 | The speed detector of escalator |
| CN109012886A (en) * | 2018-07-02 | 2018-12-18 | 天津水泥工业设计研究院有限公司 | A kind of grinding roller of vertical mill mill speed difference on-line monitoring system |
| CN109720975A (en) * | 2017-10-27 | 2019-05-07 | 上海三菱电梯有限公司 | Escalator or pavement running state detecting device |
| CN111099458A (en) * | 2020-01-08 | 2020-05-05 | 新疆农业大学 | Double-chain transmission synchronism monitoring device and double-chain transmission fault detection method of film collecting machine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989932A (en) * | 2015-07-17 | 2015-10-21 | 苏州富士电梯有限公司 | Installation tool for anti-reversal detection device on escalator or moving walk |
| CN104989932B (en) * | 2015-07-17 | 2017-03-08 | 苏州富士电梯有限公司 | The mounting tool of the Anti-reversal detection device on escalator or moving sidewalk |
| CN109720975A (en) * | 2017-10-27 | 2019-05-07 | 上海三菱电梯有限公司 | Escalator or pavement running state detecting device |
| CN109012886A (en) * | 2018-07-02 | 2018-12-18 | 天津水泥工业设计研究院有限公司 | A kind of grinding roller of vertical mill mill speed difference on-line monitoring system |
| CN109012886B (en) * | 2018-07-02 | 2020-12-15 | 天津水泥工业设计研究院有限公司 | Vertical mill grinding roller and grinding disc speed difference on-line monitoring system |
| CN108609472A (en) * | 2018-07-16 | 2018-10-02 | 上海昶屹机电科技有限公司 | The speed detector of escalator |
| CN111099458A (en) * | 2020-01-08 | 2020-05-05 | 新疆农业大学 | Double-chain transmission synchronism monitoring device and double-chain transmission fault detection method of film collecting machine |
| CN111099458B (en) * | 2020-01-08 | 2021-08-31 | 新疆农业大学 | Double-chain transmission synchronism monitoring device and double-chain transmission fault detection method of film collecting machine |
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Application publication date: 20130717 |