CN103663020A - Floor indicating device and floor indicating control system - Google Patents

Floor indicating device and floor indicating control system Download PDF

Info

Publication number
CN103663020A
CN103663020A CN201210356234.0A CN201210356234A CN103663020A CN 103663020 A CN103663020 A CN 103663020A CN 201210356234 A CN201210356234 A CN 201210356234A CN 103663020 A CN103663020 A CN 103663020A
Authority
CN
China
Prior art keywords
floor
layer
indicating device
elevator
pointer
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
Application number
CN201210356234.0A
Other languages
Chinese (zh)
Inventor
王伟耀
王全华
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.)
Shen Shanghai Water Chestnut Elevator Accessory Co Ltd
Original Assignee
Shen Shanghai Water Chestnut Elevator Accessory 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 Shen Shanghai Water Chestnut Elevator Accessory Co Ltd filed Critical Shen Shanghai Water Chestnut Elevator Accessory Co Ltd
Priority to CN201210356234.0A priority Critical patent/CN103663020A/en
Publication of CN103663020A publication Critical patent/CN103663020A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Indicating And Signalling Devices For Elevators (AREA)

Abstract

A floor indicating device which is connected with a floor indicating control device which is used for floor indication and control is arranged on an elevator entrance hall in every layer. The floor indicating device which is used for indicating elevator floors comprises a floor indicator, a device communication portion, a rotation corresponding amount obtaining portion and a rotation portion; the floor indicator comprises a clock type display disc which displays floor logos and a pointer which rotates on the display disc in a back and forth mode to inform lift car physical positions to users; the device communication portion receives moving direction information which is sent from the floor indicating control device and indicates that the lift car moves from a departure layer to an arriving layer and moving floor difference information; the rotation corresponding amount obtaining portion obtains the rotation corresponding amount which enables the pointer to rotate according to the moving floor difference information; the rotation portion enables the pointer to rotate from a pointing position of the floor logo which is corresponding to the departure layer to a pointing position of the floor logo which is corresponding to the arriving layer in an analog mode according to the rotation corresponding amount and the moving direction information.

Description

Floor indicating device and floor indication control system
Technical field
The present invention relates to a kind of floor indicating device and floor indicates control system to reflect elevator residing physical location of its cab when running state.
Background technology
The development experience that elevator is controlled relay assembly simple logic circuit, micro computer unit control, the leap of team control control system three large steps in computer centralized.From initial simple elevating function, develop into the central team control of today and process, possessed the very management of hommization.
The floor indicating device of early stage elevator is by gear combination transmission, so be to take pointer-type as representational device substantially.The old-fashioned elevator of seeing in some old films is substantially like this.
Along with the digitized development of apparatus for controlling elevator, sound, optical, electrical utilization have heartily performed to ultimate attainment.LED, LCD also use upper in the lump.But change ten thousand times without leaving the original aim or stand---be exactly sound, optical, electrical multi-form combination.
When people are experiencing modernization achievement, simple before going out toward again, practical, the succinct traditional pointer floor indicating device of lines.But elevator, in the high-tech stage of having developed into digitalisation center-control disposal system at present, is difficult to simply by pure mechanical device, simulate the physical location of the elevator under Digital Control.
Situation about how modern digital signal control system and old-fashioned pointer floor indicating device being combined in this case, becomes a kind of inevitable demand.
Summary of the invention
The object of the invention is to, provide a kind of floor indicating device and floor indication control system thereof, to overcome the existing above-mentioned shortcoming and defect of prior art.
The floor indication control convenience that use is controlled in a kind of and floor indication provided by the invention is connected and is arranged on every one deck elevator lobby, the floor indicating device that is used to indicate elevator floor, has such feature: comprise comprising showing the clock type display panel of floor identification and the formula of doing back and forth rotates to inform the floor indicating device of the pointer of user's lift car physical location on this display panel; The indication elevator cage that acceptance is sent from floor indication control convenience moves to and arrives the moving direction information of layer and the device communication section of the poor information of mobile layer from starting layer; According to the poor information of described mobile layer, obtain as making the rotation corresponding amount obtaining section of the rotation corresponding amount that described pointer rotates; And make pointer start to carry out the analog rotation section that turns to the sensing position of the floor identification corresponding with arriving layer from the sensing position of the floor identification corresponding with starting layer according to rotating corresponding amount and moving direction information.
Further, floor indicating device provided by the invention can also have such feature: rotate corresponding amount obtaining section and have a corresponding table of the poor information of mobile layer, store the corresponding relation of the poor information of mobile layer and pulse count in the corresponding table of the poor information of this mobile layer; Rotation corresponding amount is pulse count, and rotation section has according to the impulse deviser of pulse count pulsing; And drive pointer to complete the drive division of rotation according to pulse and moving direction information.
Further, floor indicating device provided by the invention can also have such feature: drive division has the transmission component being connected with pointer; And with the drive member that drives transmission component, this drive member draws driving direction, according to pulse, draws corresponding driving amount according to moving direction information, and drive transmission component according to driving direction and driving amount, thereby make pointer complete above-mentioned rotation.
Further, floor indicating device provided by the invention can also have such feature: drive member is a kind of motor in stepping motor and stroke motor, and transmission component is speed-changing gear box, and driving amount is stroke step number.
Further, floor indicating device provided by the invention can also have such feature: drive member is a kind of motor in linear motor and common motor, and transmission component is speed-changing gear box, and driving amount is running number of times.
Further, floor indicating device provided by the invention can also have such feature: the position corresponding to floor identification on display panel is also provided with arrival indicator lamp, in pointed, lights when arriving the corresponding floor identification of layer.
Further, floor indicating device provided by the invention can also have such feature: also comprise sound instruction unit, when car be about to arrive arrives layer, the arrival number of plies that this sound instruction unit sounds to remind this elevator of people of taking elevator and need to taking this elevator to arrive.
In addition, the present invention also provides a kind of floor indication control system, and this floor indication control system has such feature: comprise the floor indication control convenience that receives described moving direction information and the poor information of mobile layer from the BA interface of elevator control processor; And be connected with floor indication control convenience, be separately positioned on a plurality of floor indicating devices on every one deck elevator lobby, wherein, floor indicating device has any one feature in the feature of above-mentioned floor indicating device.
Invention effect and effect
The present invention has filled up technical between digitalisation and analog mechanical floor device indicating and has been connected blankly, has comprehensive effect between the two, complementary numeral and machinery deficiency separately:
The effect directly perceived 1, with tradition machinery, clock type dial plate elegance attractive in appearance.
2, existing digital indicator is great-jump-forward, and pointer rotates does not have transition; Pointer rotation of the present invention is continous way, and pointer rotates transition.
While 3, causing elevator faults when having a power failure or because of the reason of force majeure.The position of the reservation of the pointer of this floor indicating device, be the rearmost position of elevator cage, and can, as digital indicator, during power failure, have there is no floor demonstration, judge information the most rapidly of elevator cage present position to troubleshooting rescue group, for salvage work has won the valuable time.
Accompanying drawing explanation
Fig. 1 is the structural relation schematic diagram of the present invention's floor indication control system in an embodiment;
Fig. 2 is the control schematic diagram of the present invention's floor indicating device in an embodiment;
Fig. 3 is the structural representation of the present invention's floor indicating device in an embodiment;
Fig. 4 is the structural representation of the drive division of the present invention's floor indicating device in an embodiment;
Fig. 5 is the schematic diagram of the corresponding table of the poor information of the present invention's mobile layer in an embodiment;
Fig. 6 is the structural representation of the drive division in the present invention's variation one in an embodiment;
Fig. 7 is the diagram of circuit of the present invention's floor indication control system in an embodiment.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment, the invention will be further described.
The experimental technique of unreceipted actual conditions in the following example, conventionally according to normal condition, or the condition that manufacturer provides is carried out.
Fig. 1 is the structural relation schematic diagram of the present invention's floor indication control system in an embodiment.As shown in Figure 1, a kind of floor is indicated control system 200, receives moving direction information and the poor information of mobile layer of elevator from the BA interface (Building automatic, BA) of elevator control processor.
This floor indication control system 200 comprises that floor indication control convenience 300 and a plurality of floor indicating device 400 form.
Floor indication control convenience 300 has the first communication section 310, data temporary storage part 320, equipment control part 330 formations.
Equipment control part 330 is controlled the co-ordination of the first communication section 310 and data temporary storage part 320.The first communication section is connected with the BA interface of elevator control processor, for receiving indication lift car from elevator control processor 100, from starting layer, moves to and arrives moving direction information and the poor information of mobile layer of layer and these moving direction information and the poor information of mobile layer are sent to floor indicating device.For example, when elevator will rise to 5th floors from Stall, thereby the moving direction information of this elevator for moving up, the poor information of mobile layer is four.This moving direction information and the poor information of mobile layer are all temporarily stored in data temporary storage part 320.
Fig. 2 is the control schematic diagram of the present invention's floor indicating device in an embodiment, as shown in Figure 2, all floor indicating devices 400 are all connected with floor indication control convenience, device communication section 410, rotation corresponding amount obtaining section 430, rotation section 420 and floor indicating device 440, consist of.
Fig. 3 is the structural representation of the present invention's floor indicating device in an embodiment, as shown in Figure 3, floor indicating device 440 includes and shows the clock type display panel of floor identification and on this display panel, do back and forth the pointer that formula rotates to inform user's lift car physical location.
Floor identification is numeral corresponding with floor, and each numeral is provided with a digital indicator lamp above, is also provided with indicator lamp on pointer, and when pointer rotates, the indicator lamp on pointer lights, and pointer stops that indicator lamp on pointer and goes out.When elevator arrives layer, pointer just points to this and arrives the corresponding numeral of layer, and now, the numeral corresponding with arriving layer all lights, thereby even if also can present the arrived arrival number of plies of reminding user rather dark in the situation that.
In this floor indicating device, be also provided with a sound instruction unit (not showing in Fig. 3), when elevator is about to arrive layer, just sound reminding user elevator to be about to arrive layer.This sound not only can be suggestion voice but also can be prompt music, can also be the combination of suggestion voice and prompt music.
Device communication section 410 is synchronous receives moving direction information and the poor information of mobile layer that the first communication section are sent, thereby makes the synchronously position of indicating elevator car of floor indicating device in each floor indicating device.
Rotate in corresponding amount obtaining section 430 and be also provided with the poor information synopsis of mobile layer.In the corresponding table of the poor information of mobile layer, store the corresponding relation of the poor information of mobile layer and pulse count.
Fig. 5 is the schematic diagram of the corresponding table of the poor information of the mobile layer in the present embodiment.As shown in Figure 5, the poor information of mobile layer in the present embodiment and the corresponding relation of pulse count are that elevator need to move 1 layer, and the pulse count corresponding with this one deck is 3600; Elevator need to move two-layer, is 7200 with this two-layer corresponding pulse count ...Obviously, rotating corresponding amount is pulse count.
Rotate corresponding amount obtaining section 430 and retrieve the pulse count corresponding with arriving layer according to mobile message corresponding amount.
Rotation section 420 is not grudged pointer according to pulse count and moving direction information and from the digital sensing position corresponding with starting layer, is started to carry out the analog corresponding digital sensing position of layer that turn to and arrive.
This rotation section 420 is provided with an impulse deviser 421 and drive division 422..
The pulse count corresponding with arriving layer that impulse deviser 421 is retrieved according to rotation corresponding amount obtaining section carried out pulsing and this pulse carried out to power gain.
Drive division 422 drives pointer to complete analog rotation according to the pulse after power gain.Drive division 422 has drive member 423 and transmission component 424.Drive member 423 draws driving direction according to moving direction information, according to the pulse after power gain, drives transmission component, thereby makes pointer complete rotation.
Fig. 4 is the structural representation of the drive division of the present invention's floor indicating device in an embodiment.As shown in Figure 4, the drive member 423 in the present embodiment is stepping motor, and transmission component 424 is speed-changing gear box, and stepping motor combines with speed-changing gear box, and speed-changing gear box is connected with pointer.And stepping motor draws driving direction according to above-mentioned moving direction information, according to the pulse after power gain, carry out the gear in driven wheel change speed gear box, thereby make speed-changing gear box drive pointer to do corresponding rotation, from starting layer, move to and arrive layer.
Fig. 7 is the diagram of circuit of the present invention's floor indication control system in an embodiment.As shown in Figure 7, below, we use this elevator to rise to from the 3rd layer the workflow that layer 6 is set forth this floor indication control system 200 by user.
Step S1: device talk portion receives from the BA interface of elevator control processor that moving direction information " makes progress " and the poor information of mobile layer " 3 ", and is stored in data temporary storage part.
Step S2: the device communication section in floor indicating device receives moving direction information from device talk portion and " makes progress " and the poor information of mobile layer " 3 ".
Step S3: rotation corresponding amount obtaining section retrieves the poor information of mobile layer " 3 " from the poor information synopsis of mobile layer respective pulses number according to the poor information of mobile layer " 3 " is " 10800 ".
Step S4: the impulse deviser in rotation section, according to " 10800 ", 10800 pulses occurs.
Step S5: stepping motor " makes progress " according to moving direction information and 10800 pulses draw driving direction and stroke step number, and carry out the running of driven wheel change speed gear box according to this driving direction and stroke step number.
Step S6: speed-changing gear box drives pointer from the position rotation of pointing to numeral 3 until the position of pointed numeral six, and pointer rotates, and the indicator lamp on pointer lights, and sign elevator moves.
Step S7:: when pointer is about to turn to the numeral 6 on floor indicating device, elevator is about to arrive layer 6, audible guide is sent vocal music and is come reminding user to be about to arrive layer 6, asks user to prepare out elevator.
Step S8: pointer was towards digital 6 o'clock, and the indicator lamp of digital 6 tops lights, illustrates that elevator has arrived this arrival layer---layer 6.
Embodiment effect and effect
In sum, the floor indicating device providing in above-described embodiment and floor indication control system has been filled up the technical blank that is connected between digitalisation and analog mechanical floor device indicating, there is comprehensive effect between the two, complementary numeral and machinery deficiency separately:
The effect directly perceived 1, with tradition machinery, clock type dial plate elegance attractive in appearance.
2, existing digital indicator is great-jump-forward, and pointer rotates does not have transition; Pointer rotation of the present invention is continous way, and pointer rotates transition.
While 3, causing elevator faults when having a power failure or because of the reason of force majeure.The position of the reservation of the pointer of this floor indicating device, be the rearmost position of elevator cage, and can, as digital indicator, during power failure, have there is no floor demonstration, judge information the most rapidly of elevator cage present position to troubleshooting rescue group, for salvage work has won the valuable time.
When 4, elevator be about to arrive arrives layer, vocal music reminding user, elevator is about to arrive at a station, and prevents that the old seat of user from crossing layer and carrying out in time to taking the user of elevator the preparation of taking this elevator.
5, the indicator lamp on running process of elevator pointer lights always, informs that user's elevator moves; Elevator arrives at a station, and arrives the corresponding indicator lamp in layer top and lights, even if user also can identify the number of plies that arrives layer under dim environment.
Variation one
In the above-described embodiments, drive member is stepping motor.Obviously, it can also be replaced by other members.
Fig. 6 is the structural representation of the drive division in this variation.As shown in Figure 6, the drive member that this drive division is used is stroke motor, and transmission component is the speed-changing gear box for being connected with pointer still, and this speed-changing gear box combines with stroke motor.Other members are constant.The pulse that stroke motor occurs according to impulse deviser obtains driving direction and stroke step number, thereby complete the driving to speed-changing gear box according to driving direction and stroke step number, thereby speed-changing gear box drives pointer, make pointer synchronously reflect that the position of car final sensing arrive the corresponding Digital ID of layer.
Variation two
In above-mentioned variation one, drive member is stroke motor.Obviously, it can also be replaced by other members.
Such as, drive member is used linear motor, and other members remain unchanged.This linear motor combines with speed-changing gear box, speed-changing gear box is connected with pointer again, thereby, the pulse that linear motor occurs according to impulse deviser obtains driving direction and running number of times, thereby complete the driving to speed-changing gear box according to driving direction and running number of times, thereby speed-changing gear box drives pointer, make pointer synchronously reflect that the position of car final sensing arrive the corresponding Digital ID of layer.
Drive member in this variation can also be common motor, and it also can realize identical effect.
Obviously above-described embodiment, as just a preferred implementation, is not used for limiting the scope of the invention.

Claims (8)

1. one kind is connected and is arranged on every one deck elevator lobby with the floor indication control convenience of floor indication control use, is used to indicate the floor indicating device of elevator floor, it is characterized in that having:
Floor indicating device, comprises and shows the clock type display panel of floor identification and on this display panel, do back and forth the pointer that formula rotates to inform user's lift car physical location;
Device communication section, the indication elevator cage of accepting to send from described floor indication control convenience moves to moving direction information and the poor information of mobile layer that arrives layer from starting layer;
Rotate corresponding amount obtaining section, according to the poor information of described mobile layer, obtain the rotation corresponding amount for described pointer is rotated; And
Rotation section, makes described pointer start to carry out analog turning to and the described sensing position that arrives the corresponding described floor identification of layer from the sensing position of the described floor identification corresponding with described starting layer according to described rotation corresponding amount and described moving direction information.
2. floor indicating device according to claim 1, is characterized in that:
Wherein, described rotation corresponding amount obtaining section has a corresponding table of the poor information of mobile layer, stores the corresponding relation of the poor information of described mobile layer and pulse count in the corresponding table of the poor information of this mobile layer;
Described rotation corresponding amount is pulse count,
Described rotation section has
According to the impulse deviser of described pulse count pulsing; And
According to described pulse and described moving direction information, drive described pointer to complete the drive division of described rotation.
3. floor indicating device according to claim 2, is characterized in that:
Wherein, described drive division has the transmission component being connected with described pointer; And
With the drive member that drives described transmission component,
This drive member draws driving direction, according to described pulse, draws corresponding driving amount according to described moving direction information, and drives described transmission component according to described driving direction and described driving amount, thereby makes described pointer complete described rotation.
4. floor indicating device according to claim 3, is characterized in that:
Wherein, described drive member is a kind of motor in stepping motor and stroke motor,
Described transmission component is speed-changing gear box,
Described driving amount is stroke step number.
5. floor indicating device according to claim 3, is characterized in that:
Wherein, described drive member is a kind of motor in linear motor and common motor,
Described transmission component is speed-changing gear box,
Described driving amount is running number of times.
6. floor indicating device according to claim 1, is characterized in that:
Wherein, the position corresponding to described floor identification on described display panel is also provided with arrival indicator lamp, in described pointed, lights while arriving the corresponding floor identification of layer with described.
7. floor indicating device according to claim 1, is characterized in that:
Also comprise sound instruction unit, when described car is about to arrive described arrival layer, the arrival number of plies that this sound instruction unit sounds to remind this elevator of people of taking described elevator and need to taking this elevator to arrive.
8. a floor indication control system, is characterized in that, comprising:
Floor indication control convenience, receives described moving direction information and the poor information of described mobile layer from the BA interface of elevator control processor; And
A plurality of floor indicating devices, are connected with described floor indication control convenience, are separately positioned on every one deck elevator lobby,
Wherein, described floor indicating device is any one in the floor indicating device described in described claim 1-10.
CN201210356234.0A 2012-09-21 2012-09-21 Floor indicating device and floor indicating control system Pending CN103663020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210356234.0A CN103663020A (en) 2012-09-21 2012-09-21 Floor indicating device and floor indicating control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210356234.0A CN103663020A (en) 2012-09-21 2012-09-21 Floor indicating device and floor indicating control system

Publications (1)

Publication Number Publication Date
CN103663020A true CN103663020A (en) 2014-03-26

Family

ID=50301958

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210356234.0A Pending CN103663020A (en) 2012-09-21 2012-09-21 Floor indicating device and floor indicating control system

Country Status (1)

Country Link
CN (1) CN103663020A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106516929A (en) * 2015-09-10 2017-03-22 上海华程电梯技术有限公司 Safe and controllable elevator brake releasing system
CN112357706A (en) * 2020-10-28 2021-02-12 上海三菱电梯有限公司 Elevator display device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04121382A (en) * 1990-09-11 1992-04-22 Toshiba Corp Cage position display device of elevator
JPH0940311A (en) * 1995-07-27 1997-02-10 Toshiba Corp Elevator control device
JPH09255251A (en) * 1996-03-19 1997-09-30 Hitachi Ltd Device for displaying elevator car position
JP2000007241A (en) * 1998-06-24 2000-01-11 Mitsubishi Electric Corp Position indicator for elevator
JP2001233558A (en) * 2000-02-21 2001-08-28 Mitsubishi Electric Corp Car position indicator
JP2008056424A (en) * 2006-08-31 2008-03-13 Mitsubishi Electric Engineering Co Ltd Position display device of moving body
CN202107467U (en) * 2011-06-10 2012-01-11 安徽省宿州市龙华机械制造有限公司 Depth indicator for double-speed multipurpose winch
CN202785133U (en) * 2012-09-21 2013-03-13 上海申菱电梯配件有限公司 Floor indicating device and floor indicating control system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04121382A (en) * 1990-09-11 1992-04-22 Toshiba Corp Cage position display device of elevator
JPH0940311A (en) * 1995-07-27 1997-02-10 Toshiba Corp Elevator control device
JPH09255251A (en) * 1996-03-19 1997-09-30 Hitachi Ltd Device for displaying elevator car position
JP2000007241A (en) * 1998-06-24 2000-01-11 Mitsubishi Electric Corp Position indicator for elevator
JP2001233558A (en) * 2000-02-21 2001-08-28 Mitsubishi Electric Corp Car position indicator
JP2008056424A (en) * 2006-08-31 2008-03-13 Mitsubishi Electric Engineering Co Ltd Position display device of moving body
CN202107467U (en) * 2011-06-10 2012-01-11 安徽省宿州市龙华机械制造有限公司 Depth indicator for double-speed multipurpose winch
CN202785133U (en) * 2012-09-21 2013-03-13 上海申菱电梯配件有限公司 Floor indicating device and floor indicating control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106516929A (en) * 2015-09-10 2017-03-22 上海华程电梯技术有限公司 Safe and controllable elevator brake releasing system
CN112357706A (en) * 2020-10-28 2021-02-12 上海三菱电梯有限公司 Elevator display device

Similar Documents

Publication Publication Date Title
JP4197497B2 (en) Elevator display system and display method
CN202785133U (en) Floor indicating device and floor indicating control system
EP2768756B1 (en) Elevator passenger interface including special assistance features
CN103663020A (en) Floor indicating device and floor indicating control system
CN103523620A (en) An elevator display apparatus
US8960375B2 (en) Elevator monitoring and control method and apparatus that set and execute control patterns
US11247869B2 (en) Systems and methods for providing information regarding elevator systems
KR20200004747A (en) Elevator system
CN203419651U (en) Floor indicating device and floor indicating control system
EP3604191B1 (en) Super group architecture with advanced building wide dispatching logic - distributed group architecture
JP5879781B2 (en) Elevator group management system
CN104229576B (en) Floor indicating device and floor instruction control system
KR20200004746A (en) Elevator system
JP2015009974A (en) Information display device and display method for elevator
CN102126658B (en) Display control device of elevator system
CN203079447U (en) Elevator operating panel
CN104058308A (en) Induction type information acquisition and processing device and floor indication and control system
CN201255956Y (en) Experiment training device for multi-layered elevator system
CN107720465A (en) A kind of informing method and device
JP2015086014A (en) Elevator display system
CN101407294B (en) Control apparatus for elevator and installation construction method for elevator
JP5631657B2 (en) Elevator display control system
CN201999591U (en) Elevator integrated machine controller
CN207451352U (en) The operation instruction device of elevator
CN202429817U (en) Touch liquid crystal landing calling device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140326