CN105645212A - Elevator emergency system - Google Patents
Elevator emergency system Download PDFInfo
- Publication number
- CN105645212A CN105645212A CN201610180615.6A CN201610180615A CN105645212A CN 105645212 A CN105645212 A CN 105645212A CN 201610180615 A CN201610180615 A CN 201610180615A CN 105645212 A CN105645212 A CN 105645212A
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- China
- Prior art keywords
- elevator emergency
- elevator
- terminal
- car
- intercommunication exchange
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
Abstract
The invention provides an elevator emergency system. The elevator emergency system is characterized in that the elevator emergency system comprises an elevator emergency intercom system and an elevator emergency rescue system, the elevator emergency intercom system is connected with the elevator emergency rescue system through a single switch, and switching-on and switching-off of the elevator emergency rescue system are controlled; the elevator emergency intercom system comprises a car intercom switchboard, a duty room intercom switchboard, a machine room terminal, a car top terminal and a car bottom terminal, and the car intercom switchboard is integrated in a signal-distortion-prevention system; the signal-distortion-prevention system comprises a COP TFT multimedia platform which is provided with multiple peripheral interfaces, and the COP TFT multimedia platform is integrated with a single conversion device and a communication protocol. According to the elevator emergency system, the elevator emergency intercom system and the elevator emergency rescue system are included, when emergency warning or intercom is achieved, the elevator emergency rescue system can be started, emergency rescue can be executed, and the personal safety of passengers is further guaranteed.
Description
Technical field
The present invention relates to elevator technology field, particularly relate to a kind of elevator emergency system.
Background technology
Elevator, in the life of people, uses more and more frequent. Along with the development of science and technology, in city, high buildings and large mansions are continuously increased, and elevator is also more and more universal. People enjoy elevator bring convenient time, the safety of elevator is also paid attention to more. Being used for for a long time now with the elevator in a lot of cities, there is the situation of ageing equipment in its power supply facilities, and power-off suddenly causes that elevator stops in running sometimes; Equally, it is out of service that civil power interrupts suddenly will also result in elevator, and this situation can cause personnel panic, and the too drastic outage that is reflected in is pushed gate aside and outwards climbed even to have some passengers to occur, forms very big potential safety hazard. So must have emergency power system with ensure elevator unexpected out of service time have enough electric power to make elevator complete to arrive flat bed and door-opened elevator action, in order to the delay personnel in elevator are implemented rescue; Meanwhile, for providing sufficient illumination and communication electric can effectively alleviate the panic emotion being detained personnel in elevator in elevator.
Elevator emergency intercom system provides the voice dialogue mode of elevator subsystem and night shift room under emergency rating, is made up of elevator intercommunication subsystem and night shift room exchange. Existing intercom system, employing signal cable or the mode being wirelessly transferred connect elevator intercommunication subsystem and night shift room main frame, and connected mode has separated time system, bus system and is wirelessly transferred; Prior art generally there are following defect: separated time system wiring cost is high; Wireless transmission method is easily disturbed, debugging complexity, poor stability; Video intercommunication need to be transmitted by network or client cables. Moreover, existing intercom for elevator system is affected speech quality (background noise, electrical equipment radiation interference, transmission range, load changes) by the interference of elevator environmental working condition
Such as Chinese patent CN202829192U discloses a kind of elevator emergency system, it is characterized in that, described elevator emergency system includes main controller, and the elevator faults sensor, emergency power supply, flat bed control unit, enabling control unit, communication unit and the oxygen replenishment unit that are connected with described main controller, described elevator emergency system also includes illuminating lamp, and described illuminating lamp is connected with described emergency power supply.This technical scheme mainly solving the technical problems that occur emergency time, can simultaneously for providing the illumination of abundance, oxygen and communication electric in elevator and sending alarm, improve the security reliability of elevator, but not having any emergency relief measure, this is the personal safety that can not well ensure elevator ride person.
Elevator long distance wireless intercom system is disclosed at such as Chinese patent CN204031379U, it is characterized in that including car communication (1), machine room extension set (2), GSM main frame (3), night shift room terminal (4), car communication (1) is connected with machine room extension set (2) communication by trailing cable (7), it is connected by UHF wireless link (5) communication between machine room extension set (2) with GSM main frame (3), is connected by GSM network (6) communication between GSM main frame (3) with night shift room terminal (4). This technical scheme mode by wireless telecommunications, it is possible to accomplish long-term line, real time phone call, steady quality, flexible and convenient to use, good environmental adaptability, but still it is not solved by while reporting to the police, the problem realizing emergency relief, moreover, adopt and go to be wirelessly transferred, easily there is signal to be easily disturbed, debugging complexity, poor stability, distorted signals is serious.
Summary of the invention
For overcoming the signal existed in prior art to be easily disturbed, debugging complexity, poor stability, distorted signals is serious, and while reporting to the police, the problem that emergency relief could not be realized, the invention provides a kind of elevator emergency system.
The technical solution used in the present invention is: a kind of elevator emergency system, its innovative point is in that: include elevator emergency intercom system and elevator emergency rescue system, described elevator emergency intercom system connects elevator emergency rescue system by signaling switch, controls startup and the Guan Bi of elevator emergency rescue system; Described elevator emergency intercom system includes terminal at the bottom of car intercommunication exchange, night shift room intercommunication exchange, machine room terminal, sedan-chair top terminal and sedan-chair, and described car intercommunication exchange is integrated in anti-signal distortion system; COPTFT multimedia platform is included in described anti-signal distortion system; Described COPTFT multimedia platform is provided with multiple Peripheral Interface, and self is integrated with chromacoder and communication protocol.
In some embodiments, described chromacoder is A/D conversion equipment or optical signal conversion apparatus.
In some embodiments, between described car intercommunication exchange and night shift room intercommunication exchange, terminal at the bottom of car intercommunication exchange and sedan-chair top terminal, car intercommunication exchange and machine room terminal and car intercommunication exchange and sedan-chair adopts CAN transmission.
In some embodiments, when the chromacoder of described elevator emergency intercom system is A/D conversion equipment, now, D/A conversion equipment and power amplifier are also included; Described power amplifier is connected with A/D conversion equipment or D/A conversion equipment communication.
In some embodiments, when the chromacoder of described elevator emergency intercom system is optical signal conversion apparatus, now, in terminal at the bottom of car intercommunication exchange, night shift room intercommunication exchange, machine room terminal, sedan-chair top terminal and sedan-chair, optical signal prosessing conversion equipment is set all equally.
In some embodiments, between described car intercommunication exchange and night shift room intercommunication exchange, terminal at the bottom of car intercommunication exchange and sedan-chair top terminal, car intercommunication exchange and machine room terminal and car intercommunication exchange and sedan-chair adopts optical cable transmission.
In some embodiments, described optical cable transmission includes bidirectional data transfers passage.
In some embodiments, described power amplifier is connected with signaling switch, and described signaling switch connects elevator emergency rescue system.
In some embodiments, described elevator emergency rescue system includes electromagnetic relay, elevator electric power switch, standby power supply module and device for emergency operation, and described electromagnetic relay one end is connected with signaling switch, and the other end is connected with standby power supply module; Described electromagnetic relay connects with elevator electric power switch and device for emergency operation respectively.
In some embodiments, described device for emergency operation includes wheel of promptly filling the span of a man's arms, and described wheel of promptly filling the span of a man's arms includes two and half wheels; Any one end of said two half wheel carries out a connection, and the other end is not then attached; The chord length of said two half wheel is provided with latch.
Compared with prior art, the invention has the beneficial effects as follows:
(1) the elevator emergency intercom system of the present invention, including elevator emergency intercom system and elevator emergency rescue system, it is possible to while emergent alarm or intercommunication, opening elevator emergency rescue system, emergency management and rescue can be carried out, be further ensured that the personal safety of passenger.
(2) the elevator emergency intercom system of the present invention, elevator emergency system can be integrated on COPTFT multimedia platform, COPTFT multimedia platform has abundant Peripheral Interface, and A/D conversion and communication protocol can be carried, just simply the voice signal of simulation can be converted to digital data transmission, easy to operate, cost of manufacture is little.
(3) the elevator emergency intercom system of the present invention, it is also based on fiber optic communication, in terminal at the bottom of car intercommunication exchange, night shift room intercommunication exchange, machine room terminal, sedan-chair top terminal and sedan-chair, optical signal prosessing conversion equipment is set all equally, little based on the cost of fiber optic communication, be with roomy and reliability advantage is big, achieving a kind of emergent intercom system improving tradition intercom system interconnection, overall installation is convenient, with low cost; Reliable and stable; When adopting fiber optic communication, video intercommunication is without expanding communication circuit.
(4) the elevator emergency intercom system of the present invention, when adopting digital signal to propagate, between car intercommunication exchange and night shift room intercommunication exchange, car intercommunication exchange and sedan-chair top terminal, terminal at the bottom of car intercommunication exchange and machine room terminal and car intercommunication exchange and sedan-chair adopt CAN transmission, can solve the problem that voice long range propagation and the distorted signals caused, noise, acoustic problem, has significant transmission advantage, and is significantly reduced to this.
(5) the elevator emergency rescue system of the present invention, mainly includes electromagnetic relay, elevator electric power switch, standby power supply module and device for emergency operation, and simple in construction is easy to connect, and the setting of device for emergency operation, more can be effectively ensured car and be stopped and stop.
(6) the elevator emergency rescue system of the present invention, including wheel of promptly filling the span of a man's arms, described wheel of promptly filling the span of a man's arms includes two and half wheels; Any one end of said two half wheel carries out a connection, and the other end is not then attached; The chord length of said two half wheel is provided with latch, unclamping and closing by half wheel, realize car to be stopped and stop, owing to the chord length of both sides being provided with latch, therefore latch coordinates with the insurance latch outside car, bilateral produces frictional force, it is possible to effectively blocks insurance latch, and then ensures that elevator is parked in elevator hoistways.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 elevator emergency intercom system forward transmission schematic diagram;
Fig. 2 is the embodiment of the present invention 1 elevator emergency intercom system reverse transfer schematic diagram;
Fig. 3 is the embodiment of the present invention 1 elevator emergency intercom system and elevator emergency rescue system transfers schematic diagram;
Fig. 4 is the embodiment of the present invention 1 device for emergency operation structural representation;
Fig. 5 is the embodiment of the present invention 1 device for emergency operation subregion enlarged drawing;
Fig. 6 is the embodiment of the present invention 2 elevator emergency intercom system forward transmission schematic diagram.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
The present invention discloses a kind of elevator emergency system, including elevator emergency intercom system and elevator emergency rescue system, described elevator emergency intercom system connects elevator emergency rescue system by signaling switch, controls startup and the Guan Bi of elevator emergency rescue system.
Embodiment 1
As shown in Fig. 1��2: the elevator emergency intercom system of present embodiment includes terminal at the bottom of car intercommunication exchange (the such as communication apparatus such as mike, transmitter receiver or mike or transmitter receiver are connected with preamplifier after equipment), night shift room intercommunication exchange (such as the communication apparatus such as mike, transmitter receiver), machine room terminal (such as machine room extension set, machine room exchange etc.), sedan-chair top terminal, sedan-chair, D/A conversion equipment and power amplifier; In above-mentioned critical piece, with reference to Fig. 1: between car intercommunication exchange and night shift room intercommunication exchange, car intercommunication exchange and sedan-chair top terminal, terminal at the bottom of car intercommunication exchange and machine room terminal and car intercommunication exchange and sedan-chair all adopt CAN to transmit, power amplifier is connected with D/A conversion equipment communication; The distorted signals caused to solve voice long range propagation, noise, the problem of acoustic, and based on after being significantly reduced to consideration originally, such as Fig. 1: car intercommunication exchange is integrated in anti-signal distortion system; COPTFT multimedia platform is included in anti-signal distortion system; COPTFT multimedia platform is provided with multiple Peripheral Interface, and self is integrated with A/D conversion equipment and communication protocol. The setting of above-mentioned whole elevator emergency intercom system, by the propagation of digital signal, owing to digital signal has stronger capacity of resisting disturbance, distortion is little, the advantage that noise is low, therefore, elevator emergency system can be integrated on COPTFT multimedia platform, and COPTFT multimedia platform has abundant Peripheral Interface, and A/D conversion and communication protocol can be carried, namely can realizing that the voice signal of simulation is converted to digital data transmission to simplify, easy to operate, cost of manufacture is little. In general, mike or other equipment accept voice signal, being changed by preposition amplification and self A/D of COPTFT multimedia platform, then definition voice transfer mode, is transferred to (pit) terminal at the bottom of sedan-chair top terminal or sedan-chair or night shift room or machine room terminal by CAN.
Concrete, it is exemplified below several different transmission means, to expand the ductility of this embodiment further: a: with reference to Fig. 1, when car call night shift room, first car microphones is to voice signal, carries out power amplification by COPTFT multimedia platform preamplifier, then self A/D conversion, being subsequently loaded into CAN to transmit to night shift room, then night shift room terminal is received voice signal and is changed by D/A, reduces this voice signal by loudspeaker after being amplified by amplifier; B: with reference to Fig. 2: when night shift room calls car, first night shift room microphones is to voice signal, after the preposition amplification of amplifier, change through A/D converter, it is loaded into CAN to transmit to COPTFT multimedia platform, COPTFT multimedia platform receives the voice signal D/A conversion by self, reduces this voice signal by loudspeaker after amplification;C: with reference to Fig. 1: when car call machine room, first car microphones is to voice signal, amplified by COPTFT multimedia platform preamplifier, A/D changes, it is loaded into CAN to transmit to machine room, machine room terminal is received voice signal and is changed by D/A, reduces this voice signal by loudspeaker after amplification.
On the basis of embodiment 1, with reference to Fig. 3, add elevator emergency rescue system, concrete, present embodiment is also associated with a signaling switch 3 on the power amplifier of car voice receiver, described signaling switch 3 connects elevator emergency rescue system. as shown in Figure 3: elevator emergency rescue system includes electromagnetic relay, elevator electric power switch, standby power supply module and device for emergency operation, and described electromagnetic relay one end is connected with signaling switch 3, and the other end is connected with standby power supply module, described electromagnetic relay connects with elevator electric power switch and device for emergency operation respectively. during elevator normal operation, native system is in holding state, when elevator tenesmus out of control, car intercommunication exchange (such as mike, the communication apparatus such as transmitter receiver) sense the chimes of doom that sound of call for help that passenger sends or passenger send after pressing danger button, after acoustic-electric conversion, transmit a signal to power amplifier and carry out power amplification, signal after amplification transmits to signaling switch 3, and trigger signaling switch Guan Bi energising, described signaling switch 3 is connected with the coil of electromagnetic relay, after signaling switch 3 Guan Bi, the electric current coil by electromagnetic relay, make movable contact and the stationary contact Guan Bi of electromagnetic relay, connect standby power supply module, respectively elevator electric power is switched off, device for emergency operation starts, after elevator electric power switches off, electric supply dead electricity, limiter of speed and the safety tongs of elevator all come into force, car is fixed in elevator hoistways. it addition, after device for emergency operation startup, car is stopped and is stopped.
As it is further preferred that with reference to Fig. 4, schematically illustrate the structure of device for emergency operation 1, including wheel 2 of promptly filling the span of a man's arms, described wheel 2 of promptly filling the span of a man's arms includes two and half wheels, respectively the first half takes turns 21 and the second half and takes turns 22; Two and half any one end taken turns carry out a connection, and the other end is not then attached; Two and half chord lengths taken turns are provided with latch 23, after device for emergency operation 1 starts, with reference to such as Fig. 5, the latch 23 arranged in two and half chord lengths taken turns of wheel 2 of promptly filling the span of a man's arms is drawn close gradually, and coordinate with the insurance latch outside car, bilateral produces frictional force, it is possible to effectively blocks insurance latch, and then ensures that elevator is parked in elevator hoistways. The elevator emergency intercom system of present embodiment, including elevator emergency intercom system and elevator emergency rescue system, it is possible to while emergent alarm or intercommunication, opening elevator emergency rescue system, it is possible to carry out emergency management and rescue, be further ensured that the personal safety of passenger.
Embodiment 2
The elevator emergency intercom system of present embodiment includes car intercommunication exchange (such as mike, the communication apparatus such as transmitter receiver or mike or transmitter receiver be connected with preamplifier after equipment), night shift room intercommunication exchange (such as mike, the communication apparatus such as transmitter receiver), machine room terminal (such as machine room extension set, machine room exchange etc.), sedan-chair top terminal, terminal at the bottom of sedan-chair, in above-mentioned critical piece, cost based on fiber optic communication is little, it is with roomy and reliability advantage is big, realize a kind of emergent intercom system improving tradition intercom system interconnection, overall installation is convenient, with low cost, reliable and stable, video intercommunication is without the consideration of expanding communication circuit, with reference to figure, 6: when the chromacoder of elevator emergency intercom system is optical signal conversion apparatus, now, car intercommunication exchange, night shift room intercommunication exchange, machine room terminal, optical signal prosessing conversion equipment is set in terminal at the bottom of sedan-chair top terminal and sedan-chair all equally, and between car intercommunication exchange and night shift room intercommunication exchange, car intercommunication exchange and sedan-chair top terminal, terminal at the bottom of car intercommunication exchange and machine room terminal and car intercommunication exchange and sedan-chair all adopts optical cable transmission, distortion for compensated optical fiber communication, such as Fig. 1: car intercommunication exchange is integrated in anti-signal distortion system,COPTFT multimedia platform is included in anti-signal distortion system; COPTFT multimedia platform is provided with multiple Peripheral Interface, and self is integrated with optical signal conversion apparatus and communication protocol, and the communication protocol of optical-fibre communications selects FC agreement; As preferably, optical cable transmission includes bidirectional data transfers passage. It is achieved in that, after audio frequency intercommunication information and control data, additional data are passed through multiplexing and encoding, is transmitted via optical fiber; Described bidirectional data transfers, then be adopt the method with media interviews control and data error control to be encoded.
Described above illustrate and describes the preferred embodiments of the present invention, as previously mentioned, it is to be understood that the present invention is not limited to form disclosed herein, it is not to be taken as the eliminating to other embodiments, and can be used for other combinations various, amendment and environment, and in invention contemplated scope described herein, can be modified by the technology of above-mentioned instruction or association area or knowledge. And the change that those skilled in the art carry out and change are without departing from the spirit and scope of the present invention, then all should in the protection domain of claims of the present invention.
Claims (10)
1. an elevator emergency system, it is characterised in that: including elevator emergency intercom system and elevator emergency rescue system, described elevator emergency intercom system connects elevator emergency rescue system by signaling switch, controls startup and the Guan Bi of elevator emergency rescue system; Described elevator emergency intercom system includes terminal at the bottom of car intercommunication exchange, night shift room intercommunication exchange, machine room terminal, sedan-chair top terminal and sedan-chair, and described car intercommunication exchange is integrated in anti-signal distortion system; COPTFT multimedia platform is included in described anti-signal distortion system; Described COPTFT multimedia platform is provided with multiple Peripheral Interface, and self is integrated with chromacoder and communication protocol.
2. elevator emergency system according to claim 1, it is characterised in that: described chromacoder is A/D conversion equipment or optical signal conversion apparatus.
3. elevator emergency system according to claim 1, it is characterised in that: between described car intercommunication exchange and night shift room intercommunication exchange, car intercommunication exchange and sedan-chair top terminal, terminal at the bottom of car intercommunication exchange and machine room terminal and car intercommunication exchange and sedan-chair adopt CAN transmission.
4. elevator emergency system according to claim 2, it is characterised in that: when the chromacoder of described elevator emergency intercom system is A/D conversion equipment, now, also include D/A conversion equipment and power amplifier; Described power amplifier is connected with A/D conversion equipment or D/A conversion equipment communication.
5. elevator emergency system according to claim 2, it is characterized in that: time in the chromacoder of described elevator emergency intercom system for optical signal conversion apparatus, now, in terminal at the bottom of car intercommunication exchange, night shift room intercommunication exchange, machine room terminal, sedan-chair top terminal and sedan-chair, optical signal prosessing conversion equipment is set all equally.
6. elevator emergency system according to claim 5, it is characterised in that: between described car intercommunication exchange and night shift room intercommunication exchange, car intercommunication exchange and sedan-chair top terminal, terminal at the bottom of car intercommunication exchange and machine room terminal and car intercommunication exchange and sedan-chair adopt optical cable transmission.
7. elevator emergency system according to claim 6, it is characterised in that: described optical cable transmission includes bidirectional data transfers passage.
8. elevator emergency system according to claim 4, it is characterised in that: described power amplifier is connected with signaling switch, and described signaling switch connects elevator emergency rescue system.
9. elevator emergency system according to claim 8, it is characterized in that: described elevator emergency rescue system includes electromagnetic relay, elevator electric power switch, standby power supply module and device for emergency operation (1), described electromagnetic relay one end is connected with signaling switch (3), and the other end is connected with standby power supply module; Described electromagnetic relay connects with elevator electric power switch and device for emergency operation (1) respectively.
10. elevator emergency system according to claim 9, it is characterized in that: described device for emergency operation (1) includes wheel (2) of promptly filling the span of a man's arms, described wheel (2) of promptly filling the span of a man's arms includes two and half wheels, is the first half take turns (21) and the second half and take turns (22) respectively; Any one end of said two half wheel carries out a connection, and the other end is not then attached; The chord length of said two half wheel is provided with latch (23).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610180615.6A CN105645212B (en) | 2016-03-25 | 2016-03-25 | A kind of elevator emergency system |
| PCT/CN2016/104198 WO2017161888A1 (en) | 2016-03-25 | 2016-11-01 | Elevator emergency system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610180615.6A CN105645212B (en) | 2016-03-25 | 2016-03-25 | A kind of elevator emergency system |
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| Publication Number | Publication Date |
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| CN105645212A true CN105645212A (en) | 2016-06-08 |
| CN105645212B CN105645212B (en) | 2019-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610180615.6A Active CN105645212B (en) | 2016-03-25 | 2016-03-25 | A kind of elevator emergency system |
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| CN (1) | CN105645212B (en) |
| WO (1) | WO2017161888A1 (en) |
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| CN108429570A (en) * | 2018-03-14 | 2018-08-21 | 广州科坦电子技术有限公司 | A kind of five side's intercom system of numerical model analysis |
| CN110329858A (en) * | 2019-08-02 | 2019-10-15 | 通力电梯有限公司 | The talkback unit of lift car, the operation panel of lift car and elevator |
| CN113682365A (en) * | 2021-08-03 | 2021-11-23 | 中国建筑第八工程局有限公司 | Device capable of reducing impact safety accident of engineering electric cart |
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| CN107601196A (en) * | 2017-10-27 | 2018-01-19 | 湖南奥力斯电梯有限公司 | A kind of vertical lift elevator with emergent broadcast reception device |
| CN107601196B (en) * | 2017-10-27 | 2023-10-27 | 华容县广播电视技术学会 | Vertical lift elevator emergency broadcasting system for improving auxiliary rescue capability |
| CN108429570A (en) * | 2018-03-14 | 2018-08-21 | 广州科坦电子技术有限公司 | A kind of five side's intercom system of numerical model analysis |
| CN110329858A (en) * | 2019-08-02 | 2019-10-15 | 通力电梯有限公司 | The talkback unit of lift car, the operation panel of lift car and elevator |
| CN113682365A (en) * | 2021-08-03 | 2021-11-23 | 中国建筑第八工程局有限公司 | Device capable of reducing impact safety accident of engineering electric cart |
| CN113682365B (en) * | 2021-08-03 | 2022-12-02 | 中国建筑第八工程局有限公司 | Device capable of reducing impact safety accident of engineering electric cart |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017161888A1 (en) | 2017-09-28 |
| CN105645212B (en) | 2019-02-26 |
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