CN201369722Y

CN201369722Y - Interphone for elevator

Info

Publication number: CN201369722Y
Application number: CNU2009200683826U
Authority: CN
Inventors: 杨保云
Original assignee: Shanghai BST Electric Co Ltd
Current assignee: Shanghai BST Electric Co Ltd
Priority date: 2009-03-04
Filing date: 2009-03-04
Publication date: 2009-12-23
Anticipated expiration: 2019-03-04

Abstract

The utility model discloses an interphone for an elevator, which is applicable to emergency intercom in the elevator. The interphone for the elevator comprises a power supply, a telephone, a decoder, and a two-core cable, wherein the telephone comprises a duty room telephone, a machine room telephone, a car top telephone, a car platform sill telephone and a pit telephone, which are connected in parallel; the power supply is connected with the input end of the duty room telephone; the output end of the duty room telephone is connected with the input end of the two-core cable; the two-core cable can be connected with N groups of elevator systems (N is less than 255); the two-core cable is taken as a bus of the system; call signals, the power supply and audio signals are transmitted to the bus; the power supply, the decoder, the machine room telephone, the car top telephone, the car platform sill telephone and the pit telephone are arranged inside each group of elevator system; the decoder in the each group of the elevator system is connected with the output end of the two-core cable; and the input end of the decoder is connected with the power supply. The utility model has the advantages of novel structure, low wiring cost, convenient installation, and convenient and fast and flexible networking.

Description

The elevator intercom

Technical field

The utility model relates to the intercom that elevator emergency is used, particularly two-wire system multiple control lift intercom.

Background technology

Along with the continuous development of Chinese national economy, the raising day by day of people's lives water product, the advancing by leaps and bounds of urban construction, one of city high rise building mansion connects one and rises sheer from level ground, and the use of elevator is also just day by day frequently got up, and has also occurred some problems gradually.

The raising of elevator popularity, when installation, maintenance and the elevator of elevator broke down, the elevator intercom system was by frequent utilization, so the elevator intercom is now as the parts that must join in the elevator accessory, and the importance of elevator intercom is self-evident.

At present the elevator intercom generally all is that single terraced intercommunication mode can not networking, when elevator is more the phone of night shift room also just more, cause wiring many and in disorder, present elevator mostly is to adopt 4 core cables in wiring, adopt 4 core cables to bring inconvenience to on-the-spot installation and maintenance, other adopts 4 core cable distributions will bring the waste of resource, wiring cost higher, under the situation more and more deficienter in resource, that country advocates thriftiness resource energetically, develop a easy for installation, economize on resources, wiring cost is low, networking easily the elevator intercom just seem particularly urgent.

The utility model content

Technical problem to be solved in the utility model is, overcomes the defective of existing elevator intercom, and a kind of two-wire system multiple control lift intercom is provided, and wiring cost is low, installs more conveniently, and networking is more convenient flexible.

In order to address the above problem the technical solution of the utility model is such:

The elevator intercom, it comprises that power supply, telephone set, decoder, 2 core cables constitute jointly.

Described telephone set is installed in respectively in interior each desired location of elevator, comprise a night shift room phone that is installed in the bus and be installed in the interior a plurality of intercommunication phones of every group of elevator, described a plurality of intercommunication phone comprises machine room phone, sedan-chair top phone, car phone and pit phone, is relation in parallel between a plurality of intercommunication phones.

Described power supply is connected with the input of described night shift room phone, the output of described night shift room phone connects the input of 2 core cables, described 2 core cables can be organized (N is less than 255) elevator device with N and be connected, 2 core cables transmit call signal, power supply and audio signal as the bus of system on the described bus.Described 2 core cables adopt nonpolarity connection when wiring, make that installation is more convenient.

Be provided with power supply, decoder, machine room phone, sedan-chair top phone, car phone and pit phone in every group of elevator device.

Decoder in described every group of elevator is connected with the output of 2 core cables, and the input of decoder connects a power supply, between decoder, machine room phone, sedan-chair top phone, car phone and the pit phone for being connected in parallel.

The address of described decoder can be set by user oneself, only need increase a decoder when how terraced networking, makes networking more convenient.

Described decoder is made of jointly address setting module, communication module, MCU module and conversation switching controls module, described MCU module is the center micro-control unit, the input of MCU module connects a power supply, address setting module and communication module, and the output of MCU module connects conversation switching controls module.

The structure of described telephone set comprises sidetone cancellation module, impedance matching module, power amplifier module, MCU module and communication module.The output of described sidetone cancellation module is connected with the nozzle of listening of telephone set, and the output of sidetone cancellation module also connects an impedance matching module, and the input of sidetone cancellation module connects power amplifier module; The input of described power amplifier module connects the output of MCU module, and the input of described MCU module connects a communication module and an external power supply respectively.

Exchange of night shift room employing is realized the control to all elevator intercommunications, makes the wiring of night shift room and phone greatly reduce, and the bus of elevator device is divided internal bus and external bus, thereby makes the isolation of bus.

The beneficial effects of the utility model are, compare with existing elevator intercom, and wiring cost is low, easy for installation, networking is more convenient flexibly.

Description of drawings

Describe the utility model in detail below in conjunction with the drawings and specific embodiments;

Fig. 1 is applied to the system architecture diagram of elevator for the utility model.

Fig. 2 is an internal structure schematic diagram of the present utility model.

Fig. 3 is the structural representation of decoder.

Embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

Referring to Fig. 1, the utility model elevator intercom comprises power supply 1, telephone set, decoder 4 and two core cable 11, and described telephone set is meant and is installed in night shift room phone 2, machine room phone 5, sedan-chair top phone 6, car phone 7 and the pit phone 8 in each desired location in the elevator respectively.

Power supply 1 connects the input of night shift room phone 2, the output of night shift room phone 2 connects the input of two core cable 11, the output of two core cable 11 can connect N (N is less than 255) group elevator intercom system, and promptly exchange of night shift room is realized the control to all elevator intercommunications.

Every group of elevator intercom system comprises described decoder 4, machine room phone 5, sedan-chair top phone 6, car phone 7 and pit phone 8, each decoder 4 is connected with the output of two core cable 11, the input of decoder 4 also connects a power supply 3, and described decoder 4, machine room phone 5, sedan-chair top phone 6, car phone 7 and pit phone 8 are for being connected in parallel.

Described two core cable 11 adopts nonpolarity connection when wiring, it comes call transmission signal, power supply and audio signal as the bus of system.

The address of decoder 4 can be set by user oneself, and is easy to use.

Referring to Fig. 2, described telephone set is applied to each relevant position of elevator as the intercommunication phone, as night shift room phone 2, machine room phone 5, sedan-chair top phone 6, car phone 7 and pit phone 8.

Telephone structure comprises sidetone cancellation module 21, impedance matching module 22, power amplifier module 23, MCU module 25 and communication module 26.The output of described sidetone cancellation module 21 is connected with the nozzle of listening of intercommunication phone, and the output of sidetone cancellation module 21 also connects an impedance matching module 22, and the input of sidetone cancellation module 21 connects power amplifier module 23; The input of described power amplifier module 23 connects the output of MCU module 25, and the input of described MCU module 25 connects a communication module 26 and an external power supply 24 respectively.

Referring to Fig. 3, decoder 4 in the utility model is made of jointly address setting module 31, communication module 32, MCU module 33 and conversation switching controls module 35, described MCU module 33 is the center micro-control unit, the input of MCU module 33 connects a power supply 34, address setting module 31 and communication module 32 respectively, and the output of MCU module 33 connects conversation switching controls module 35.

Referring to Fig. 1, using method of the present utility model and step are as described below once more:

(1) the night shift room phone is called out the phone in a certain elevator:

A imports the address (this address can be provided with by decoder 4) of the elevator that needs conversation on the keyboard of night shift room phone 2

B is called out decoder 4 in the elevator and is received after the calling i.e. other phone forwarded call signal in elevator.

Other phone of c sends answer signal for decoder 4, and decoder 4 is opened talking path.

2 on-hooks of d night shift room phone finish conversation this time.

(2) phone in the elevator is called out night shift room phone 2:

Phone in a elevator is pressed and is called out night shift room phone button.

B decoder 4 forwarded call signals, wait night shift room phone 2 is replied.

C night shift room phone 2 begins conversation after receiving and calling out show Calls elevator address, back off-hook.

Finish conversation this time after 2 on-hooks of d night shift room phone.

The utility model adopts the bus of a two core cable as system, adopts nonpolarity connection, makes that installation is more convenient, and wiring cost is also low, and networking is more flexible.

More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1, elevator intercom comprises power supply, telephone set, cable and decoder, it is characterized in that, described cable is a two core cable, and described telephone set comprises a night shift room phone that is installed in the bus and is installed in the interior a plurality of intercommunication phones of separated time;

Described power supply connects the input of described night shift room phone, and described night shift room phone connects the input of two core cable, and the output of described two core cable connects the decoder of every group of elevator respectively, is connected in parallel between described decoder and a plurality of phone.

2, elevator intercom according to claim 1 is characterized in that, described a plurality of intercommunication phones are installed in every group of elevator, comprises machine room phone, sedan-chair top phone, car phone and pit phone.

3, elevator intercom according to claim 1 is characterized in that, connection N portion elevator device networking that described two core cable is nonpolarity, and wherein N is less than 255.

4, elevator intercom according to claim 1 is characterized in that, described decoder comprises that address setting module, communication module, MCU module and conversation switching controls module constitute jointly, and described MCU module connects an external power supply.

5, elevator intercom according to claim 1 is characterized in that, described telephone set comprises sidetone cancellation module, impedance matching module, power amplifier module, MCU module and communication module, and described MCU module connects an external power supply.