CN103449276A - Elevator safety precaution system - Google Patents
Elevator safety precaution system Download PDFInfo
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- CN103449276A CN103449276A CN2013104360514A CN201310436051A CN103449276A CN 103449276 A CN103449276 A CN 103449276A CN 2013104360514 A CN2013104360514 A CN 2013104360514A CN 201310436051 A CN201310436051 A CN 201310436051A CN 103449276 A CN103449276 A CN 103449276A
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Abstract
The invention relates to an elevator safety precaution system comprising a landing door opening/closing detecting device, a lift car position detecting device, a car outer sensing device, a precaution device and a power device independent to the elevator. The landing door opening/closing detecting device is used for detecting whether the landing door is open or closed or not, the lift car position detecting device is used for detecting whether the lift car is near to the landing door or not, the car outer sensing device is used for detecting approaching condition of people outside the car, the precaution device is used for receiving detecting signals from the landing door opening/closing detecting device, the lift car position detecting device and the car outer sensing device, and judging whether to send precaution signals or not according to the detecting signals, and the power device independent to the elevator is used for supplying power to the precaution system. The elevator safety precaution system can precaution risks of early landing door unlocking and of entering unlocked landing door when monitoring elevator maintenance, so that life safety of passengers and maintenance staff can be guaranteed, and states of the car outer sensing device can be switched over intelligently, long and unnecessary power start is saved, and independent external power source is utilized to prevent losing monitoring capability due to power failure of the elevator.
Description
Technical field
The present invention relates to the elevator control technology field, relate in particular to a kind of elevator safety forewarn system.
Background technology
The elevator safety Frequent Accidents, it is reported in recent years, be strayed into Room door and the hoistway that falls be a kind of common elevator safety accident.This type of case, generally refer to that car is in installing or inspecting state, and the passenger may enter the not Room door of locking in unwitting situation, or manual unlocking Room door, if now car is not nearby, the passenger will fall hoistway and cause extremely serious harm.Lesson written in blood makes elevator safety hidden danger cause social extensive concern.At present, the domestic work of the self-examination to this type of safety misadventure, mainly start with from passenger's safe boarding education, and reduce the falling accident problem in order to solve, and still needs to realize by products perfection.
Current lift product lacks the monitoring scheme to inspecting state Room door entrance, and Room door also can be in inspecting state triangular key tool to open.Under inspecting state, elevator can't carry out safe early warning to the passenger, and passenger and service personnel are all formed to security threat.
From current elevator technology present situation, intellectual technology will be paved the way for the elevator safety solution gradually.Adopt Modern Transducer Technology, locate to set up sensing media at the elevator marquis ladder Room and pit etc., it is a kind of solution preferably that monitoring elevator and Room door state build intelligent safety pre-warning system, because sensing technology is more ripe, can realize flexibly the design of monitored control system by the sensing technology of the signals such as light, super sonic, power, electricity.
Summary of the invention
The object of the invention is to for a kind of safety pre-warning system of elevator design, when this system can be monitored overhauling elevator, the guard mode of the state that car berths and Room door, and divide the maintenance environment with three states, set the running state of forewarn system.
Purpose of the present invention is achieved through the following technical solutions:
A kind of elevator safety forewarn system comprises:
One Room door opened/closed detecting device, in order to detect whether closure or openness of Room door;
One device for detection of position of car body, in order to detect car whether near the door of the Room;
Sensing device outside one Room, in order to detect the Room outdoors personnel approach situation;
One prior-warning device, in order to receive the detection signal of sensing device outside Room door opened/closed detecting device, device for detection of position of car body and the Room, and judge whether to send early warning signal according to detection signal;
One with elevator supply unit independently, in order to forewarn system, to provide power supply;
When car, not near the door of the Room, and Room door is while opening, if the Room outdoors personnel to Room door, approach, described prior-warning device sends early warning signal;
When car, not near the door of the Room, and Room door is when closed, if the Room outdoors personnel attempt to open Room door, described prior-warning device sends early warning signal;
When car is near the door of the Room, Room door closure or openness whether no matter, described prior-warning device does not all send early warning signal.
Further, described prior-warning device comprises an early warning main frame and an alarm loop; Outside described Room door opened/closed detecting device, device for detection of position of car body and the Room, sensing device forms the acquisition of signal loop; Described early warning main frame is connected with the alarm loop with the acquisition of signal loop by signal transmission interface, detection signal in order to real-time read signal acquisition circuit, and detection signal is transferred to the alarm loop according to the logical algorithm generation judgment value of internal preset, described alarm loop determines whether to send early warning signal according to the judgment value received.
Further, described prior-warning device also comprises a reserve machine, and described reserve machine is connected with the early warning main frame by data transmission interface, in order to back up the early warning data in the early warning main frame; Described reserve machine also is connected with the alarm loop with the acquisition of signal loop by the first normally opened relay and signal transmission interface, and when the early warning main frame damages, described the first normally opened relay closure, make described reserve machine take over and bring into play the function of early warning main frame.
Further, described early warning main frame comprises: read detection signal, process the also signal reception/feedback module of feedback signal, carry out logic operation and generate the program writing module of judgment value, and the storage detection signal reads, the memory module for the treatment of process and judgment value generative process; Described reserve machine is connected with memory module by data transmission interface.
Further, the judgment value that described early warning main frame generates also is transferred to the sensing device Room outside simultaneously, and outside the described Room, sensing device is selected whether standby or activation according to the judgment value of reception.
Further, described Room door opened/closed detecting device is realized by the door of every one deck Room, the door lock contact being set.
Further, described device for detection of position of car body adopts laser rangefinder, and it is arranged on the elevator hoistways bottom by adjusting bolt and supporting steel seat, and the upper end of this laser rangefinder is provided with the printing opacity protective cover.
Further, outside the described Room, sensing device adopts the super sonic proximity sensor, and it is arranged on the elevator lintel top of every one deck, and downward-sloping certain angle setting, and angle of inclination is adjustable.
Further, described supply unit comprises building civil power, shorting switch, voltage transformer and backup power, and described building civil power provides power supply through the backward forewarn system of voltage transformer transformation, and described shorting switch is in normally off, in order to the input of short circuit building civil power; When the current supply circuit Shang，Dang building civil power that described backup power is arranged in the building civil power by the second normally opened relay stops because of accident in the supply regular power process, described the second normally opened relay closure, used described in-put of spare power supply.
Further, also be furnished with a lightning protection device on the current supply circuit of described building civil power.
The invention has the beneficial effects as follows:
1, the tradition of a family danger, the Room that forewarn system can intelligent monitoring entire building space, comprise under the monitoring inspecting state, the risk that the risk of early warning release Room door and early warning enter not sealed Room door, thus ensure the life security of passenger and service personnel.
2, the state of sensing device outside the intelligence switching Room, save because of long-term unnecessary unlatching energy.
3, adopt the monitoring of super sonic proximity sensor to approach the object of well entrance, be not subject to the interference of temperature, humidity, light, and the distance of reaction span is large, strong adaptability, simultaneously, volume is little, is convenient to install additional at elevator lintel or other position.
4, use independently external source, prevent that elevator from cutting off the power supply and losing monitoring capacity.
5, be provided with reserve machine in prior-warning device, guaranteed the reliable rows of system operation.
6, external lightening protection installation, the assurance system can continue to be on active service under inclement weather.
The accompanying drawing explanation
The circuit block diagram that Fig. 1 is elevator safety forewarn system of the present invention.
The work schematic diagram that Fig. 2 is prior-warning device in the present invention.
The field application schematic diagram that Fig. 3 is elevator safety forewarn system of the present invention.
The scheme of installation that Fig. 4 is device for detection of position of car body in the present invention.
The local enlarged diagram that Fig. 5 is A in Fig. 4.
Fig. 6 is the scheme of installation of sensing device outside the Room in the present invention.
The local enlarged diagram that Fig. 7 is B in Fig. 6.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As depicted in figs. 1 and 2, a kind of elevator safety forewarn system comprises: a Room door opened/closed detecting device 1, in order to detect whether closure or openness of Room door; One device for detection of position of car body 2, in order to detect car whether near the door of the Room; Outside one Room, sensing device 3, in order to detect the Room outdoors personnel approach situation; One prior-warning device 4, in order to receive the detection signal of sensing device 3 outside Room door opened/closed detecting device 1, device for detection of position of car body 2 and the Room, and judge whether to send early warning signal according to detection signal; One with elevator supply unit 5 independently, in order to forewarn system, to provide power supply.
Outside Room door opened/closed detecting device 1, device for detection of position of car body 2 and the Room, sensing device 3 forms acquisition of signal loop A, and prior-warning device 4 carries out corresponding actions according to the detection signal collected.When car, not near the door of the Room, and Room door is while opening, if the Room outdoors personnel to Room door, approach, described prior-warning device 4 sends early warning signal; When car, not near the door of the Room, and Room door is when closed, if the Room outdoors personnel attempt to open Room door, described prior-warning device 4 sends early warning signal; When car is near the door of the Room, Room door closure or openness whether no matter, described prior-warning device 4 does not all send early warning signal.Early warning signal can be the signals such as acoustics, optics, mechanics, attempts to enter the personnel (also applicable physical disabilities) of hazardous location with warning, the safety that improves elevator entrance.
Prior-warning device 4 comprises early warning main frame 41, alarm loop 42 and reserve machine 43.Early warning main frame 41 is connected with alarm loop 42 with acquisition of signal loop A by signal transmission interface 6, detection signal in order to real-time read signal acquisition circuit A, and detection signal is transferred to alarm loop 42 according to the logical algorithm generation judgment value of internal preset, alarm loop 42 determines whether to send early warning signal according to the judgment value received.Reserve machine 43 is connected with early warning main frame 41 by data transmission interface SATA, in order to back up the early warning data in early warning main frame 41; Reserve machine 43 also is connected with alarm loop 42 with acquisition of signal loop A by the first normally opened relay KEM1 and signal transmission interface 6, and when early warning main frame 41 damages, the first normally opened relay KEM1 closure, make reserve machine 43 take over and bring into play the function of early warning main frame 41.
Early warning main frame 41 comprises: read detection signal, process the also signal reception/feedback module 411 of feedback signal, carry out logic operation and generate the program writing module 412 of judgment value, and the storage detection signal reads, the memory module 413 for the treatment of process and judgment value generative process.Reserve machine 43 is connected with memory module by data transmission interface SATA.During work, signal reception/feedback module 411 is by the detection signal assignment to logical algorithm default in program writing module 412 and generate judgment value, and signal reception/feedback module 411 is quoted judgment value and is transferred to sensing device 3 outside the 42He Room, alarm loop.Alarm loop 42 determines whether to send chimes of doom according to the judgment value of feedback, and, 3 of sensing devices are selected whether standby or activation according to the judgment value of feeding back in the Room outside.Room door opened/closed detecting device 1 and device for detection of position of car body 2 be the unidirectional transmission signal just, does not accept feedback signal (needing to keep in real time monitoring).
As shown in Figure 3, Room door opened/closed detecting device 1 is realized by the door of every one deck Room, the door lock contact being set.For example, floor 1,2,3 ..., L, L+1 ..., N Room door arranges door lock contact S1, S2, S3 ..., SL, SL+1 ..., SN reflects that Room door lock closes state in real time.
As shown in Fig. 3, Fig. 4 and Fig. 5, device for detection of position of car body 2 adopts laser rangefinder, and it is arranged on elevator hoistways 9 bottoms by adjusting bolt 7 and supporting steel seat 8, and the upper end of this laser rangefinder is provided with printing opacity protective cover 10.Can adjust the planarization of laser rangefinder by adjusting bolt 7, guarantee the stability of signal.Printing opacity protective cover 10 has good light transmission and certain intensity, shock that can anti-hoistway junk, and guarantee on laser rangefinder emission and receive stomidium to isolate with dangerous articles such as dust, water.
As shown in Fig. 3, Fig. 6 and Fig. 7, outside the Room, sensing device 3 adopts the super sonic proximity sensor, and it is arranged on elevator lintel 13 tops of every one deck, and downward-sloping certain angle setting, and angle of inclination is adjustable.During specific design, super sonic proximity sensor 3 rear ends are installed in rotation on a bearing 11, and, by clamping knob 12 lockings, unclamp clamping knob 12, can make adjustment to the inclination angle of super sonic proximity sensor 3.
As shown in Figure 2, supply unit 5 comprises building civil power 51, shorting switch 52, voltage transformer 53 and backup power 54, building civil power 51 provides power supply through the backward forewarn system of voltage transformer 53 transformation, and shorting switch 52 is in normally off, in order to the input of short circuit building civil power 51.Usually, elevator normally moves Shi， building civil power 51 to forewarn system power supply, thereby system do not start, and when elevator enters inspecting state, by operating personal, opens shorting switch 52, and forewarn system obtains electric and place in operation.Backup power 54 is arranged on the current supply circuit of building civil power by the second normally opened relay KEM2, when elevator in inspecting state, when if the building civil power is cut off or is terminated because of accident, the second normally opened relay KEM2 closure, in-put of spare power supply is used, continue to maintain the electric power supply of forewarn system, guarantee under the overhauling elevator state, service personnel has certain flex time and finishes service work.
Also be furnished with a lightning protection device 55 on the current supply circuit of building civil power 51, so that forewarn system also can place in operation under inclement weather.
As described above, it is only preferred embodiment of the present invention, can not limit scope of the invention process with this, the simple equivalence of generally doing according to the present patent application the scope of the claims and invention description content changes and modifies, and all still remains within the scope of the patent.
Claims (10)
1. an elevator safety forewarn system, is characterized in that, comprising:
One Room door opened/closed detecting device, in order to detect whether closure or openness of Room door;
One device for detection of position of car body, in order to detect car whether near the door of the Room;
Sensing device outside one Room, in order to detect the Room outdoors personnel approach situation;
One prior-warning device, in order to receive the detection signal of sensing device outside Room door opened/closed detecting device, device for detection of position of car body and the Room, and judge whether to send early warning signal according to detection signal;
One with elevator supply unit independently, in order to forewarn system, to provide power supply;
When car, not near the door of the Room, and Room door is while opening, if the Room outdoors personnel to Room door, approach, described prior-warning device sends early warning signal;
When car, not near the door of the Room, and Room door is when closed, if the Room outdoors personnel attempt to open Room door, described prior-warning device sends early warning signal;
When car is near the door of the Room, Room door closure or openness whether no matter, described prior-warning device does not all send early warning signal.
2. a kind of elevator safety forewarn system as claimed in claim 1, it is characterized in that: described prior-warning device comprises an early warning main frame and an alarm loop; Outside described Room door opened/closed detecting device, device for detection of position of car body and the Room, sensing device forms the acquisition of signal loop; Described early warning main frame is connected with the alarm loop with the acquisition of signal loop by signal transmission interface, detection signal in order to real-time read signal acquisition circuit, and detection signal is transferred to the alarm loop according to the logical algorithm generation judgment value of internal preset, described alarm loop determines whether to send early warning signal according to the judgment value received.
3. a kind of elevator safety forewarn system as claimed in claim 2, it is characterized in that: described prior-warning device also comprises a reserve machine, described reserve machine is connected with the early warning main frame by data transmission interface, in order to back up the early warning data in the early warning main frame; Described reserve machine also is connected with the alarm loop with the acquisition of signal loop by the first normally opened relay and signal transmission interface, and when the early warning main frame damages, described the first normally opened relay closure, make described reserve machine take over and bring into play the function of early warning main frame.
4. a kind of elevator safety forewarn system as claimed in claim 3, it is characterized in that, described early warning main frame comprises: read detection signal, process the also signal reception/feedback module of feedback signal, carry out logic operation and generate the program writing module of judgment value, and the storage detection signal reads, the memory module for the treatment of process and judgment value generative process; Described reserve machine is connected with memory module by data transmission interface.
5. as claim 2 or 3 or 4 described a kind of elevator safety forewarn systems, it is characterized in that: the judgment value that described early warning main frame generates also is transferred to the sensing device Room outside simultaneously, and outside the described Room, sensing device is selected whether standby or activation according to the judgment value of reception.
6. a kind of elevator safety forewarn system as claimed in claim 1 or 2 or 3 or 4, it is characterized in that: described Room door opened/closed detecting device is realized by the door of every one deck Room, the door lock contact being set.
7. a kind of elevator safety forewarn system as claimed in claim 1 or 2 or 3 or 4, it is characterized in that: described device for detection of position of car body adopts laser rangefinder, it is arranged on the elevator hoistways bottom by adjusting bolt and supporting steel seat, and the upper end of this laser rangefinder is provided with the printing opacity protective cover.
8. a kind of elevator safety forewarn system as claimed in claim 1 or 2 or 3 or 4, it is characterized in that: outside the described Room, sensing device adopts the super sonic proximity sensor, it is arranged on the elevator lintel top of every one deck, and downward-sloping certain angle setting, and angle of inclination is adjustable.
9. a kind of elevator safety forewarn system as claimed in claim 1 or 2 or 3 or 4, it is characterized in that: described supply unit comprises building civil power, shorting switch, voltage transformer and backup power, described building civil power provides power supply through the backward forewarn system of voltage transformer transformation, described shorting switch is in normally off, in order to the input of short circuit building civil power; When the current supply circuit Shang，Dang building civil power that described backup power is arranged in the building civil power by the second normally opened relay stops because of accident in the supply regular power process, described the second normally opened relay closure, used described in-put of spare power supply.
10. a kind of elevator safety forewarn system as claimed in claim 9, is characterized in that: on the current supply circuit of described building civil power, also be furnished with a lightning protection device.
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| CN104370176A (en) * | 2014-11-10 | 2015-02-25 | 南京台菱电梯工程有限公司 | Elevator landing door and car door double-way detection system |
| CN106406301A (en) * | 2015-07-29 | 2017-02-15 | 苏州宝时得电动工具有限公司 | Automatic mowing apparatus and safe self-start system and method |
| CN107331099A (en) * | 2017-07-25 | 2017-11-07 | 江南嘉捷电梯股份有限公司 | A kind of elevator fire-fighting signal monitoring device |
| CN108689266A (en) * | 2017-03-31 | 2018-10-23 | 奥的斯电梯公司 | The visual status indicator of the state of door and lock |
| CN109573768A (en) * | 2018-12-13 | 2019-04-05 | 永大电梯设备（中国）有限公司 | A kind of elevator maintenance protective device and elevator maintenance guard method |
| CN109626159A (en) * | 2018-11-09 | 2019-04-16 | 日立电梯（中国）有限公司 | The based reminding method of elevator car position, device and system |
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| CN109626159A (en) * | 2018-11-09 | 2019-04-16 | 日立电梯（中国）有限公司 | The based reminding method of elevator car position, device and system |
| CN109573768A (en) * | 2018-12-13 | 2019-04-05 | 永大电梯设备（中国）有限公司 | A kind of elevator maintenance protective device and elevator maintenance guard method |
| CN109573768B (en) * | 2018-12-13 | 2023-06-16 | 永大电梯设备（中国）有限公司 | Elevator maintenance protection device and elevator maintenance protection method |
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