CN106604155A - Elevator emergency call communication system and method - Google Patents
Elevator emergency call communication system and method Download PDFInfo
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- CN106604155A CN106604155A CN201710000344.6A CN201710000344A CN106604155A CN 106604155 A CN106604155 A CN 106604155A CN 201710000344 A CN201710000344 A CN 201710000344A CN 106604155 A CN106604155 A CN 106604155A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
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- Indicating And Signalling Devices For Elevators (AREA)
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Abstract
The invention discloses an elevator emergency call communication system and method. The system comprises a call terminal and a communication switching module, wherein the communication switching module is in communicating connection with a far-end server through a network communication or GSM communication mode; the far-end server is connected with a communication terminal; the communication switching module receives voice signals, compresses the voice signals according to a predetermined algorithm, detects a network time-delay state of the far-end server, if a time delay is within a threshold scope, sends the voice signals to the far-end server through the network communication mode, and otherwise, sends the voice signals through the GSM communication mode; and the far-end server detects the communication state of the communication terminal, if a detection result is suitable for communication, sends decompressed voice signals to the communication terminal, and otherwise, switches the communication terminal until connection is established. According to the invention, through arrangement of at least two communication modes, a communication module can be switched according to the time-delay state of network communication, the communication quality is ensured, elevator accident rescue untimeliness caused by communication delays is avoided, and the reliability is high.
Description
Technical field
The present invention relates to elevator communication technical field, more specifically, it relates to a kind of elevator emergency calling communication system
And method.
Background technology
Intercom for elevator is a kind of communication apparatus being arranged in lift car, when elevator in case of emergency, elevator
Personnel in car can be got in touch using the said equipment with the external world.
For current elevator communication equipment, there is also some problems, for example：Because signal shielding is tight in elevator hoistways
Weight, is difficult to be got in touch with the external world using general wireless intercom equipment；Secondly as current talk back equipment is one-to-one
Arrange, i.e., after end initiation request is breathed out, if receiving terminal does not have response, the request will be considered invalid, Huo Zhe
Response cannot be obtained in effective time, based on above-mentioned two reason, it is desirable to which communication can effectively be set up, and ensure elevator pair
The system of saying has the seriality of good real-time and speech communication.
The content of the invention
For the problem in practice, present invention aim at a kind of elevator emergency calling communication system is proposed, specifically
Scheme is as follows：
A kind of elevator emergency calling communication system, it is characterised in that include：
For gathering the calling terminal of voice signal；And
With the communication switching module of the calling terminal wired connection, the communication switching module is with VOIP network services or PSTN
Network service or gsm communication mode are communicated to connect with far-end server；
Far-end server is connected with least two serial communications；
Wherein, communication switching module receives the voice signal of calling terminal, by set compression algorithm, and by handshake
The network delay state of detection far-end server, if delay time is located in threshold range, the voice signal after compression is led to
The mode for crossing PSTN network communication or VOIP network services is sent to far-end server；If delay time is located at outside threshold range,
Voice signal after then compressing is sent to far-end server by gsm communication mode；
Far-end server receives and decompresses the compression voice signal, detects the communications status of communication terminal, if testing result is suitable
In communication, then the voice signal after decompression is sent to the communication terminal；If testing result is unsuitable for communication, switching is used for
The communication terminal of voice signal after decompression is received, until setting up the connection for being suitable to communicate.
Further, the communication switching module includes：
Voice signal processing module, receives the analog voice signal of calling terminal, is converted into audio digital signals；
PSTN modules, are connected with calling terminal signal, receive analog voice signal and send to far-end server Jing after processing；
IP network communication module, with the coupling of voice signal processing module outfan, receives the audio digital signals, by set calculation
Method is encoded to audio digital signals, compressed, packing is processed, the digital voice data bag transmission Jing after IP networks will compress packing
To far-end server；
4G communication modules, receive audio digital signals and are sent to far-end server by 4G networks；
Network delay detection module, is communicated to connect with far-end server by PSTN modules or IP network communication module, including one
Handshake transmitting terminal, handshake receiving terminal and timer, timer response is in the transmission signal of handshake transmitting terminal
Start timing, in response to the reception signal of handshake receiving terminal timing is stopped, exporting a timing signal；
Control handover module, including comparator module and switching circuit module, comparator receive the timing signal and by its
Be compared with a threshold signal, outfan output comparison signal, switching circuit and PSTN modules, IP network communication module and
The gating connection of 4G communication modules, in response to above-mentioned comparison signal, control digital voice data bag is input into IP network communication module
Or voice signal is input into PSTN modules or 4G communication modules.
Further, at least two are additionally provided with the communication switching module is used to identify the messenger of communication terminal
Code, the communicating number is stored in data storage list, the data storage list and PSTN modules, IP network communication module
And 4G communication module data cube computations.
Further, it is stored with the data storage list for demarcating the position encoded of elevator position, it is described
PSTN modules, IP network communication module and 4G communication modules read described position encoded and send it to far-end server,
Send to communication terminal after far-end server reception is above-mentioned position encoded and decoded.
Further, the far-end server includes：
Decompression module, with IP network communication module data cube computation, receives the VoP after compression, and according to set algorithm solution
Press the VoP；The decompression module is communicated to connect with communication terminal by way of wirelessly or non-wirelessly；
Communication check module, including the handshake communicated to connect with network delay detection module end, and detection communication are replied
The communication check end of terminal communication state.
Further, the communication terminal includes mobile phone, panel computer or the PC inside night shift room.
A kind of elevator emergency call communication method, including：
System building step, the transmitter receiver or telephone set in lift car is connected with communication handover module wire communication, is communicated
Interconnecting module is wirelessly connected with far-end server module using PSTN communications, IP network communication or gsm communication mode, remote service
Device and at least one communication terminal are communicated to connect by wired or wireless way；
Preset parameter step, the communicating number of multiple mark different communication terminals is stored to the data storage of communication switching module
In list, the geographical position that the elevator is located is stored in data storage list by the way of position encoded；
Operating procedure is put into practice, by the transmitter receiver or telephone set in car by the transmitting voice signal simulated to communication switching mould
Block, Jing communication switching modules are processed into audio digital signals, prolonging when communication switching module detects that it communicates with far-end server
When state, if delay time is in threshold range, by audio digital signals by set compression algorithm transmit to distal end clothes
Business device, communicating number of the far-end server in stored digital list will be sent to correspondence after the voice signal decompression after compression
Communication terminal, communication terminal receives and far-end server replied after above-mentioned voice signal, communication is set up, if in setting time
Far-end server does not receive the return information of communication terminal, then switch communicating number, until far-end server and communication terminal
Set up effectively communication connection.
Further, the algorithm of the Speech Signal Compression packing of calling terminal output comprises the steps,
Analog voice signal is converted to into audio digital signals, the level height of each sampled point of audio digital signals is detected, will
The sampled point of audio digital signals is divided into effective sampling points and invalid sampled point, wherein, when the persistent period of invalid sampled point
During more than Preset Time, intercept this section of sampling point sequence and omitted, and effective sampling points are divided into into multiple sequences, according to
The compression of VOIP protocol packings is processed.
By above-mentioned technical proposal, first the voice signal of calling terminal is converted to into audio digital signals, detects net
The communication delay state of network, is determined according to the delay state of network and selects to be communicated using which kind of network, it is ensured that the matter of communication
Amount.Special packing compression is carried out in communication process to audio digital signals to process, screen out some non-essential voice signals,
Such as pause, complete noise, reduce the data volume of voice signal, it is ensured that voice while reducing communication bandwidth shared by voice signal
Signal can be efficiently transferred to communication terminal, it is to avoid Communication Jamming and time delay.By arranging multiple communicating numbers, detection is each
The communications status of individual communicating number, using mode wirelessly or non-wirelessly data communication is realized, when one of serial communication
Switch to another communications status when being not in good state in time, it is ensured that effectively carrying out for communication, improve the reliability of whole system.
Compared with prior art, beneficial effects of the present invention are as follows：
（1）By arranging at least two communication patterns, communication module can be switched according to the delay state of network service, it is ensured that logical
The quality of letter, it is to avoid because elevator accident is rescued not in time caused by communication delay；
（2）By the compression that voice signal is carried out special algorithm so that bandwidth shared by the voice signal of transmission is little, same is logical
Data volume reduction is held in letter, is conducive to data to transmit under unstable communication environment, it is ensured that the call information of lift car
Communication terminal can be in time sent to.
Description of the drawings
Fig. 1 is the general frame schematic diagram of the present invention；
Fig. 2 is the schematic flow sheet of call communication method in the present invention.
Accompanying drawing mark：1st, calling terminal；2nd, communication switching module；3rd, far-end server；4th, communication terminal；5th, transmitter receiver；
6th, telephone set；7th, IP network communication module；8th, 4G communication modules；9th, handover module is controlled；10th, network delay detection module；11、
Voice signal processing module；12nd, data storage list；13rd, decompression module；14th, communication check module；15th, mobile phone；16th, flat board
Computer；17th, PC；18th, PSTN modules.
Specific embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not only
It is limited to this.
As shown in figure 1, a kind of elevator emergency calling communication system, including for gathering the calling terminal 1 of voice signal；With
And the communication switching module 2 with the wired connection of calling terminal 1, communication switching module 2 is logical with VOIP network services or PSTN network
Letter or gsm communication mode are communicated to connect with far-end server 3；Far-end server 3 is communicated to connect with least two communication terminals 4.
In above-mentioned setting, calling terminal 1 includes the transmitter receiver 5 or telephone set 6 being arranged in lift car, transmitter receiver 5 or telephone set 6
It is controlled by the start trigger signal such as button of personnel in lift car, the voice signal of personnel in car is converted into into corresponding height
Low level signal is exported.
Wherein, communication switching module 2 receives the voice signal of calling terminal 1, by set compression algorithm, and by holding
The network delay state of handss signal detection far-end server 3, if delay time is located in threshold range, by the voice after compression
By way of network service, i.e., VOIP network services or PSTN network communication mode send to far-end server 3 signal；If prolonging
It is located between constantly outside threshold range, then the voice signal after compressing is sent to far-end server 3 by gsm communication mode.
Far-end server 3 receives and decompresses compression voice signal, the communications status of communication terminal 4 is detected, if testing result
Communication is suitable to, then the voice signal after decompression is sent to communication terminal 4；If testing result is unsuitable for communication, switching is used for
The communication terminal 4 of voice signal after decompression is received, until setting up the connection for being suitable to communicate.
For achieving the above object, communication switching module 2 includes：Voice signal processing module 11, IP network communication mould
Block 7, PSTN modules 18,4G communication modules 8, network delay detection module 10 and control handover module 9.
Voice signal processing module 11, receives the analog voice signal of calling terminal 1, is converted into digital speech letter
Number, in voice signal processing module 11, realized using DSP speech chips of the prior art, can conveniently realize
The process of voice signal.
PSTN modules 18, are connected with calling terminal (1) signal, receive analog voice signal and send Jing after processing to distal end clothes
Business device (3).
IP network communication module 7, with the coupling of the outfan of voice signal processing module 11, receives audio digital signals, by both
Determine algorithm to process audio digital signals coding, compression, packing, Jing IP networks the digital voice data bag after packing will be compressed
Be sent to far-end server 3, in said process, for the audio digital signals after conversion are processed in advance, then according still further to
VOIP communication protocols carry out packing process to audio digital signals.
4G communication modules 8, receive audio digital signals and are sent to far-end server 3 by 4G networks；
Network delay detection module 10, is connected with far-end server 3 by network service, including a handshake transmitting terminal, is held
Handss signal receiving end and timer, timer response starts timing in the transmission signal of handshake transmitting terminal, in response to holding
The reception signal of handss signal receiving end stops timing, exports a timing signal.
Control handover module 9, including comparator module and switching circuit module, comparator receive timing signal and by its
It is compared with a threshold signal, outfan output comparison signal, switching circuit communicates mould with IP network communication module 7 and 4G
The gating connection of block 8, in response to above-mentioned comparison signal, control digital voice data bag be input into IP network communication module 7 or or
PSTN modules 18 or 4G communication modules 8.
Functional module in above-mentioned setting, the mode that can be engaged directly or by peripheral circuit is configured at processor core
In piece, such as single-chip microcomputer, FPGA, for example, network delay detection module 10, it is only necessary to defeated by the signal output of processor chips
Enter end, using built-in timing program, just can flexibly and easily calculate processor chips output signal and receive signal
Time difference, because above-mentioned collocation method has extremely been popularized in the prior art, will not be described here.
For convenience switch communication terminal 4, be additionally provided with communication switching module 2 at least two for mark communication end
The communicating number at end 4, communicating number is stored in data storage list 12, data storage list 12 and IP network communication module 7,
PSTN modules 18 and the data cube computation of 4G communication modules 8.Above-mentioned data storage list 12 realizes data using Flash rom chips
Storage and output, data will not be lost during power down, just can be with life-time service after early stage burning.
In order that communication terminal 4 can rapidly know the position that elevator is located after voice signal is received, counting
The position encoded of elevator position is demarcated according to being stored with storage list 12, IP network communication module 7 and 4G communicate
The reading position of module 8 encodes and sends it to far-end server 3, and far-end server 3 receives above-mentioned position encoded and decoded
After send to communication terminal 4.
In the present invention, communication terminal 4 includes mobile phone 15, panel computer 16 or the PC inside night shift room 17, its
In, be built-in with mobile phone 15, panel computer 16 navigation APP, i.e., when communication terminal 4 is received it is above-mentioned position encoded after, it is possible to use
Navigation APP directly finds the elevator position for sending call information..
For far-end server 3, including：Decompression module 13, with the data cube computation of IP network communication module 7, receives after compressing
VoP, and according to set algorithm decompressed speech packet；Decompression module 13 is with communication terminal 4 by wirelessly or non-wirelessly
Mode communicate to connect；Communication check module 14, replys including the handshake communicated to connect with network delay detection module 10
End, and the communication check end of the detection communications status of communication terminal 4.
Based on above-mentioned elevator emergency calling communication system, the invention allows for a kind of elevator emergency call communication side
Method, as shown in Fig. 2 including：
System building step, the transmitter receiver 5 or telephone set 6 in lift car is connected with communication handover module wire communication, is led to
Letter interconnecting module 2 and the module of far-end server 3 is wirelessly connected using network service or gsm communication mode, far-end server 3 and extremely
A few communication terminal 4 is communicated to connect by wired or wireless way；
Preset parameter step, the communicating number of multiple mark different communication terminals 4 is stored to the data of communication switching module 2 and is deposited
In storage list 12, the geographical position that the elevator is located is stored in data storage list 12 by the way of position encoded；
Operating procedure is put into practice, by the transmitter receiver 5 or telephone set 6 in car by the transmitting voice signal simulated to communication switching mould
Block 2, Jing communication switching modules 2 are processed into audio digital signals, when communication switching module 2 detects that it communicates with far-end server 3
Delay state, if delay time is in threshold range, audio digital signals are transmitted to remote by set compression algorithm
End server 3, communicating number of the far-end server 3 in stored digital list will send after the voice signal decompression after compression
To corresponding communication terminal 4, communication terminal 4 receives reply far-end server 3 after above-mentioned voice signal, sets up communication, if
Far-end server 3 does not receive the return information of communication terminal 4 in setting time, then switch communicating number, until remote service
Device 3 sets up effectively communication connection with communication terminal 4.
Describe in detail, the algorithm of the Speech Signal Compression packing of the output of calling terminal 1 comprises the steps,
Analog voice signal is converted to into audio digital signals, the level height of each sampled point of audio digital signals is detected, will
The sampled point of audio digital signals is divided into effective sampling points and invalid sampled point, wherein, when the persistent period of invalid sampled point
During more than Preset Time, intercept this section of sampling point sequence and omitted, and effective sampling points are divided into into multiple sequences, according to
The compression of VOIP protocol packings is processed.
The beneficial effects of the present invention is, first the voice signal of calling terminal 1 is converted to into audio digital signals, examine
The communication delay state of survey grid network, is determined according to the delay state of network and selects to be communicated using which kind of network, such as VOIP
Communication mode or PSTN network communication mode or 4G communication modes, it is ensured that the quality of communication.To digital speech in communication process
Signal carries out special packing compression and processes, and screens out some non-essential voice signals, such as pause, complete noise, reduces language
The data volume of voice signal is reduced shared by message number while communication bandwidth, it is ensured that voice signal can be efficiently transferred to lead to
Letter terminal 4, it is to avoid Communication Jamming and time delay.By arranging multiple communicating numbers, the communications status of each communicating number are detected, profit
Data communication is realized with mode wirelessly or non-wirelessly, is switched in time when the communications status of one of communication terminal 4 are not good another
One communications status, it is ensured that effectively carrying out for communication, improve the reliability of whole system.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned enforcement
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
Should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of elevator emergency calling communication system, it is characterised in that include：
For gathering the calling terminal (1) of voice signal；And
With the communication switching module (2) of the calling terminal (1) wired connection, the communication switching module (2) is with VOIP networks
Communication or PSTN network communication or gsm communication mode are communicated to connect with far-end server (3)；
Far-end server (3) is communicated to connect with least two communication terminals (4)；
Wherein, communication switching module (2) receives the voice signal of calling terminal (1), by set compression algorithm, and by holding
The network delay state of handss signal detection far-end server (3), if delay time is located in threshold range, by the language after compression
Message number is sent to far-end server (3) by way of PSTN network communication or VOIP network services；If delay time is located at
Outside threshold range, then the voice signal after compressing is sent to far-end server (3) by gsm communication mode；
Far-end server (3) receives and decompresses the compression voice signal, detects the communications status of communication terminal (4), if detection
As a result communication is suitable to, then the voice signal after decompression is sent to the communication terminal (4)；If testing result is unsuitable for communication,
The communication terminal (4) of voice signal after then switching for receiving decompression, until setting up the connection for being suitable to communicate.
2. elevator emergency calling communication system according to claim 1, it is characterised in that the calling terminal (1) includes
The transmitter receiver (5) or telephone set (6) being arranged in lift car.
3. elevator emergency calling communication system according to claim 1, it is characterised in that the communication switching module (2)
Including：
Voice signal processing module (11), receives the analog voice signal of calling terminal (1), is converted into digital speech letter
Number；
PSTN modules (18), are connected with calling terminal (1) signal, receive analog voice signal and send to remote service Jing after processing
Device (3)；
IP network communication module (7), with the coupling of voice signal processing module (11) outfan, receives the audio digital signals,
Audio digital signals coding, compression, packing are processed by set algorithm, Jing IP networks the digital speech number after packing will be compressed
Far-end server (3) is sent to according to bag；
4G communication modules (8), receive audio digital signals and are sent to far-end server (3) by 4G networks；
Network delay detection module (10) is logical by PSTN modules (18) or IP network communication module (7) with far-end server (3)
Letter connection, including a handshake transmitting terminal, handshake receiving terminal and timer, timer response is launched in handshake
The transmission signal at end starts timing, and in response to the reception signal of handshake receiving terminal timing is stopped, and exports a timing signal；
Control handover module (9), including comparator module and switching circuit module, the comparator reception timing signal simultaneously will
It is compared with a threshold signal, and outfan output comparison signal, switching circuit communicates mould with PSTN modules (18), IP network
Block (7) and 4G communication modules (8) gating connection, in response to above-mentioned comparison signal, control digital voice data bag is input into IP
Network communication module (7) is input into voice signal to PSTN modules (18) or 4G communication modules (8).
4. elevator emergency calling communication system according to claim 3, it is characterised in that the communication switching module (2)
In be additionally provided with least two for identifying the communicating number of communication terminal (4), the communicating number is stored in data storage row
In table (12), the data storage list (12) and PSTN modules (18), IP network communication module (7) and 4G communication modules
(8) data cube computation.
5. elevator emergency calling communication system according to claim 4, it is characterised in that the data storage list (12)
In be stored with for demarcating the position encoded of elevator position, the PSTN modules (18), IP network communication module (7) and
4G communication modules (8) read described position encoded and send it to far-end server (3), and far-end server (3) receives above-mentioned
Send after position encoded and decoded to communication terminal (4).
6. elevator emergency calling communication system according to claim 3, it is characterised in that far-end server (3) bag
Include：
Decompression module (13), and IP network communication module (7) data cube computation receives the VoP after compression, and according to setting
Determine algorithm and decompress the VoP；The decompression module (13) is led to communication terminal (4) by way of wirelessly or non-wirelessly
Letter connection；
Communication check module (14), including the handshake communicated to connect with network delay detection module (10) end is replied, and
The communication check end of detection communication terminal (4) communications status.
7. elevator emergency calling communication system according to claim 1, it is characterised in that the communication terminal (4) includes
Mobile phone (15), panel computer (16) or the PC (17) inside night shift room.
8. a kind of elevator emergency call communication method, it is characterised in that include：
System building step, the transmitter receiver (5) or telephone set (6) in lift car is connected with the handover module wire communication that communicates
Connect, communication switching module (2) is communicated with far-end server (3) module using PSTN, IP network communication or gsm communication mode are wireless
Connection, far-end server (3) is communicated to connect with least one communication terminal (4) by wired or wireless way；
Preset parameter step, the communicating number of multiple marks different communication terminal (4) is stored to the number of communication switching module (2)
According to storage list (12), the geographical position that the elevator is located is stored in into data storage list by the way of position encoded
(12) in；
Operating procedure is put into practice, is turned the transmitting voice signal simulated to communicating by the transmitter receiver (5) or telephone set (6) in car
Connection module (2), Jing communication switching modules (2) are processed into audio digital signals, and communication switching module (2) detects itself and remote service
Delay state when device (3) communicates, if delay time is in threshold range, audio digital signals is beaten by set compression algorithm
Bag is sent to far-end server (3), and communicating number of the far-end server (3) in stored digital list is by the voice after compression
Send to corresponding communication terminal (4) after signal decompression, communication terminal (4) to be received and reply remote service after above-mentioned voice signal
Device (3), sets up communication, if far-end server (3) does not receive the return information of communication terminal (4) in setting time, cuts
Communicating number is changed, until far-end server (3) sets up effectively communication connection with communication terminal (4).
9. elevator emergency call communication method according to claim 8, it is characterised in that calling terminal (1) output
Speech Signal Compression packing algorithm comprise the steps,
Analog voice signal is converted to into audio digital signals, the level height of each sampled point of audio digital signals is detected, will
The sampled point of audio digital signals is divided into effective sampling points and invalid sampled point, wherein, when the persistent period of invalid sampled point
During more than Preset Time, intercept this section of sampling point sequence and omitted, and effective sampling points are divided into into multiple sequences, according to
The compression of VOIP protocol packings is processed.
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| CN111436011A (en) * | 2019-01-11 | 2020-07-21 | 郭哲 | Real-time cloud network elevator intercom system |
| CN110190869A (en) * | 2019-05-17 | 2019-08-30 | 重庆市珞宾信息技术有限公司 | The enhanced complementary bimodulus intercom of one kind and bimodulus intercom method |
| CN115665329A (en) * | 2022-10-18 | 2023-01-31 | 江苏威尔曼科技有限公司 | Elevator call device, method, computer device and storage medium |
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Effective date of registration: 20221111 Address after: 215000 No.389, Wufang Road, bakhe friendship Industrial Zone, Songling Town, Wujiang District, Suzhou City, Jiangsu Province Patentee after: Fuqi Technology (Suzhou) Co.,Ltd. Address before: Building 3, No.8, Lane 151, Panlong Road, Xujing Town, Qingpu District, Shanghai 201700 Patentee before: SHANGHAI FUXIANG ELECTROMECHANICAL CO.,LTD. |