CN1553318A - Universal industrial online and remote management device and method - Google Patents

Universal industrial online and remote management device and method Download PDF

Info

Publication number
CN1553318A
CN1553318A CNA031289460A CN03128946A CN1553318A CN 1553318 A CN1553318 A CN 1553318A CN A031289460 A CNA031289460 A CN A031289460A CN 03128946 A CN03128946 A CN 03128946A CN 1553318 A CN1553318 A CN 1553318A
Authority
CN
China
Prior art keywords
module
equipment
subscriber equipment
user
serial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA031289460A
Other languages
Chinese (zh)
Inventor
汤晓辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CNA031289460A priority Critical patent/CN1553318A/en
Publication of CN1553318A publication Critical patent/CN1553318A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Computer And Data Communications (AREA)

Abstract

The management device consists of hardware quipment and real time software embedded and operatedin the equipment. Multist of user equipment in the same or different type can be connected simultaneously to the management device through serial interfaceand remote management function based on WEBcan be provided to these user equipment. This method can be used for equipment and apparatus from various manufactures as these equipment are not only added with function of remote maintenance and management but also it is not necessary to make any revision of their soft ware and hardware.

Description

A kind of general-purpose industrial networking and long-distance management device and method
Affiliated technical field
What the present invention relates to industry and communication field is a kind of with equipment and instrument access network and realize the device and method of remote maintenance, management.Specifically, be equipment itself not to be carried out under the prerequisite of any modification, will have the equipment or the instrument access network of serial communication interface and realize remote maintenance, management function.
Background technology
The remote maintenance of equipment, management are technology of equipment being carried out strange land Breakdown Maintenance and management Network Based.It can make equipment manufacturers by the internet strange land faulty equipment be carried out status checking and Breakdown Maintenance, makes equipment use enterprise in the strange land equipment to be monitored and controlled.Current implementation method for equipment increase remote maintenance, management function generally has two kinds: the one, equipment is inserted Internet by the Modem mode, and work out the remote maintenance software of this equipment on computers, when equipment breaks down, by the Modem that the remote maintenance software-driven links to each other with equipment, remote maintenance software can be carried out alternately with equipment; The 2nd, in equipment, increase network interface, and device software is made amendment, increase procotol, make equipment can pass through the network interface access network, the remote maintenance software of this equipment of establishment on supervisory computer when equipment breaks down, utilizes remote maintenance software and this equipment to carry out alternately simultaneously.
There are many shortcomings in the implementation method of two kinds of remote maintenances of current this.For example: (1) must work out management software on PC, and the user can only carry out Long-distance Control and management on the PC of runs administrative software.Way to manage is limited.(2) network management the time, the security meeting becomes a very important problem.No matter adopt which kind of mode,, device side is felt simply helpless to network attack if in equipment, do not increase the security control function.And, then must compare big modification to the software of device interior in order in equipment, to increase the network security control function, this makes the development difficulty of remote maintenance functions strengthen, the development time lengthening.(3) can't under the prerequisite that guarantees device security, carry out telemanagement, can only transform again equipment to old equipment.Can't protect existing hardware investment.
Summary of the invention
The objective of the invention is in order to overcome the defective of prior art, when the equipment for existing serial communication interface increases remote maintenance, management function, network and long-distance management device is replaced by each equipment soft, hardware of remote maintenance system of customizing again with a kind of general-purpose industrial.This device provides a plurality of serial ports and a network interface, and serial ports can link to each other with subscriber equipment, and network interface can access network.When an equipment wants to increase remote maintenance, management function, only need this equipment to be linked to each other with this device by serial ports, and with the network interface access network of this device, on this device, carry out some simple configuration according to the actual conditions of this equipment again and get final product, do not need soft, the hardware of equipment itself are made any change.The user can carry out telemanagement, control by standard browser (as: IE) to equipment on arbitrary the PC that is connected on the network, need not develop special software on PC.This method can reduce the realization difficulty of remote maintenance, management greatly, improves development efficiency, reduces cost of development.
Device of the present invention is made up of following two parts: hardware system and software systems.
Wherein, the hardware system of this device (100) function is as follows:
This device utilizes the plug-in card mode to provide 1 to a plurality of serial ports, carries out information interaction by these serial ports and connected equipment.This device is by 10/100M network interface access network.
The software systems of this device (200) function is as follows:
Software systems are obtained relevant information according to the serial port communicating protocol of subscriber equipment appointment from subscriber equipment, and it is carried out the procotol encapsulation, are sent to the control desk of network far-end; The operational order of sending from the control desk of network reception far-end is removed the procotol encapsulation simultaneously, according to the serial port communicating protocol of subscriber equipment appointment, it is translated into the understandable control command of subscriber equipment be sent on the subscriber equipment again.
The invention has the beneficial effects as follows, when the equipment with serial communication interface wants to increase remote maintenance, management function, can not carry out inside transformation, only need this equipment to be linked to each other with this device, according to the actual conditions of this equipment this device is carried out some fairly simple configurations again and get final product by serial ports.This method can reduce the realization difficulty of remote maintenance greatly, improves development efficiency, reduces cost of development.
Description of drawings
The present invention will be further described below in conjunction with accompanying drawing and example.
Fig. 1 is whole software structure figure of the present invention
Network Interface Module (101): mainly be the driving that realizes the network interface chip, the data transmit-receive work of control network interface chip.
Serial interface module (102): mainly be the driving that realizes serial port chip, and according to the communication function between the serial ports of realization of equipment of serial communications protocol definition list and subscriber equipment.It receives the order from facility information access module (108), converts it to the form that subscriber equipment is supported, sends to subscriber equipment.Simultaneously, also be responsible for receiving the message of sending, and to the facility information access module (108) of send from subscriber equipment.
Network protocol module (103): mainly be to realize the TCP/IP procotol, make this device can access network, and mutual by the supvr of network and far-end.
WEB interface module (104): mainly be to realize WEB SERVER function.Dynamic data in the system and the html page organic connections of forming user interface are got up, provide an apparatus remote maintenance interface to the supvr of far-end.By this interface, the user can the network far-end by the WEB BROWSER browsing mode of using close friend directly perceived come to subscriber equipment and this device operate, maintenance and management.Carry out WEB and browse and can use present standard browser, as: IE, NETSCAPE etc.This module is responsible for receiving and the order of interpreting user, at the operand of user command, operation is sent to scheduler module go to carry out, and return the result that agreement is carried out, and delivers user terminal displays.In addition, this module also is responsible for the identity of remote subscriber is examined, refusal unauthorized access, the safety of assurance subscriber equipment.
Scheduler module (105): mainly realize a data Access Model.By it, can visit and be provided with the data in other modules in the equipment.Receive the read-write requests of WEB interface module (104) when scheduler module after, search database is to determine the object of this operation.If to the operation of this device, then send to configuration module (107) and handle; If to the operation of subscriber equipment, then send to user agent module (106) and handle.
User agent module (106): mainly be the agency who serves as calling party equipment.After this module receives that scheduler module (105) is delivered next request of access, pre-service is carried out in this request, give facility information access module (108) then and handle, and the result that will return is converted to displayable character string forms and returns to scheduler module (105).
Configuration module (107): main being responsible for handled some configuration orders relevant with this device, as the configuration of equipment information collection table, device type definition, program online updating or the like.When this device is applied on the dissimilar equipment, is only permitted to revise these allocation lists and can realize the remote maintenance of novel user equipment is managed.
Facility information access module (108): mainly provide the collection of the various performance datas of subscriber equipment and function is set.This module can generate the order of the specific data of gathering subscriber equipment automatically according to the equipment information collection table, and sends on the subscriber equipment by serial interface module (102); Also can generate collection or control command, and send on the subscriber equipment by serial interface module (102) according to the request of user agent module (106) to a certain user equipment information.
Fig. 2 is hardware of the present invention (high-end microprocessors) schematic diagram
Network interface (201): the network interface chip provides 10/100M Ethernet access function.
Power panel (202): power module, for equipment provides power supply.
CPU (203): microcomputer processing unit.
Expansion serial ports (204): the serial ports process chip provides the serial ports access capability.
FLASH (205): non-volatile memory, the storage ability of information when the system power down is provided.
Internal memory (206): internal storage location.
Fig. 3 is a networking synoptic diagram of the present invention
Network (301): can be the internet, also can be LAN (Local Area Network).
Control desk (302): far-end control computer.
This device (303): this device links to each other with network by network interface, links to each other with subscriber equipment by serial ports, and can connect many different types of user devices simultaneously.
Subscriber equipment (304): the equipment or the instrument that possess serial communication interface.
Fig. 4 is control desk carries out information acquisition and control operation to subscriber equipment a software flow pattern
Fig. 5 is the software flow pattern that control desk is configured this device
The structure of Fig. 6 equipment information collection table
Embodiment
Embodiment 1: utilize device of the present invention, when a subscriber equipment that serial communication interface arranged was increased remote maintenance functions, operation steps was as follows:
1 usefulness Serial Port Line connects the output serial ports of subscriber equipment and a serial ports of this device.
2 network interface access networks with this device.
3 move standard browser (as: IE) on arbitrary the PC that links to each other with network, import the IP address of this device, sign in to the administration page of this device.
4 on this administration page the actual conditions according to the subscriber equipment that inserts revise default subscriber equipment definition list, this table definition the serial port communicating protocol that subscriber equipment adopted.
5 on administration page the actual conditions according to the subscriber equipment that inserts revise default user equipment information acquisition tables, this table definition to from subscriber equipment, gather which data, acquisition mode is (timing acquiring or receive order then gather) how again, acquisition form etc.If timing acquiring then need be provided with acquisition time at interval.
6 start the service start button on administration page, then this device is started working.After this, on administration page, can read, be provided with the various data in the subscriber equipment.
Embodiment 2: utilize device of the present invention, when with this device the subscriber equipment that serial communication interface is arranged of a plurality of same types being increased remote maintenance functions, operation steps is as follows:
1 usefulness Serial Port Line links to each other the output serial ports of each subscriber equipment and a serial ports of this device.
2 network interface access networks with this device.
3 move standard browser (as: IE) on arbitrary the PC that links to each other with network, import the IP address of this device, sign in to the administration page of this device.
4 revise default subscriber equipment definition list on this administration page, this table definition the serial port communicating protocol that subscriber equipment adopted.
5 on administration page the actual conditions according to the subscriber equipment that inserts revise default user equipment information acquisition tables, this table definition to from subscriber equipment, gather which data, acquisition mode is (timing acquiring or receive order then gather) how again, acquisition form etc.If timing acquiring then need be provided with acquisition time at interval.
6 start the service start button on administration page, then this device is started working.After this, on administration page, can read, be provided with the various data in each subscriber equipment.
Embodiment 3: utilize device of the present invention, when with this device a plurality of dissimilar subscriber equipmenies that serial communication interface is arranged being increased remote maintenance functions, operation steps is as follows:
1 usefulness Serial Port Line links to each other the output serial ports of each subscriber equipment and a serial ports of this device.
2 network interface access networks with this device.
3 move standard browser (as: IE) on arbitrary the PC that links to each other with network, import the IP address of this device, sign in to the administration page of this device.
4 on this administration page according to the actual conditions of the subscriber equipment that is inserted, revise the pairing subscriber equipment definition list of each serial ports one by one, this table definition the serial port communicating protocol that this subscriber equipment adopted.
5 revise the user equipment information acquisition tables of each subscriber equipment one by one according to the actual conditions of subscriber equipment on administration page, this table definition to from this subscriber equipment, gather which data, acquisition mode is (timing acquiring or receive order then gather) how again, acquisition form etc.If timing acquiring then need be provided with acquisition time at interval.
6 start the service start button on administration page, then this device is started working.After this, on administration page, can read, be provided with the various data in each subscriber equipment.
Embodiment 4: utilize device of the present invention, the treatment scheme by subscriber equipment being carried out information acquisition and control operation as the standard browser of the PC of control desk as shown in Figure 4:
1 user selects certain type operations (data acquisition operation or control operation) to certain subscriber equipment on device management pages, by ACK button.This moment, browser can generate a HTTP information, and target ip address is this device.
2 Network Interface Modules (101) receive the Frame of this HTTP information composition from network, and it is handed to network protocol module (103).
3 network protocol modules (103) take out this HTTP information after the Frame of receiving is carried out the related protocol processing from Frame, hand to WEB interface module (104).
4WEB interface module (104) is at first carried out identity authentication to the person of sending of this operation, after the affirmation operation is legal, the Frame of receiving is carried out command analysis, and it is translated into the discernible command format of scheduler module, hands to scheduler module (105).
5 scheduler modules (105) searching database is judged the command type of receiving, be confirmed to be operational order to subscriber equipment after, it is handed to user agent module (106).
6 user agent module (106) are carried out pre-service to this operational order, and judgement is the order of issuing which subscriber equipment, and it is handed to facility information access module (108).
7 facility information access modules (108) are handed to serial interface module (102) with it after operational order is translated into the command format that subscriber equipment can discern.
8 serial interface modules (102) are selected suitable serial port communicating protocol according to the device definition table of designated user equipment, and this operational order is sent on the subscriber equipment.
9 subscriber equipmenies send execution result return by serial ports, and serial interface module (102) receives this return results.
10 serial interface modules (102) send to facility information access module (108) with the operating result of receiving.
11 facility information access modules (108) are translated into the form that upper layer module can be discerned to the operating result of subscriber equipment, are transmitted to user agent module (106) then.
The result that 12 user agent module (106) will be returned is converted to displayable character string forms, and it is transmitted to scheduler module (105).
13 scheduler modules (105) are to the result of WEB interface module (104) return string form.
14WEB interface module (104) is packaged into the HTTP form to result and returns to network protocol module (103).
15 network protocol modules (103) send to Network Interface Module (101) after return results is carried out the related protocol processing.
16 Network Interface Modules (101) send to packaged Frame on the network from network interface, issue control desk.The user just can see the return results of command execution on the IE browser.
Embodiment 5: utilize device of the present invention, the treatment scheme that the administration page by control desk is operated this device as shown in Figure 5:
1 user is configured operation to this device on administration page, by ACK button.This moment, browser can generate a HTTP information, and target ip address is this device.
2 Network Interface Modules (101) receive the Frame of this HTTP information composition from network, and it is handed to network protocol module (103).
3 network protocol modules (103) take out this HTTP information after the Frame of receiving is carried out the related protocol processing from Frame, hand to WEB interface module (104).
4WEB interface module (104) is at first carried out identity authentication to the person of sending of this operation, after the affirmation operation is legal, the Frame of receiving is carried out command analysis, and it is translated into the discernible command format of scheduler module, hands to scheduler module (105).
5 scheduler modules (105) searching database is judged the command type of receiving, be confirmed to be operational order to this device after, it is handed to configuration module (107).
6 configuration modules (107) are handled this order, and result is returned to scheduler module (105) with displayable character string forms.
7 scheduler modules (105) are to the result of WEB interface module (104) return string form.
8WEB interface module (104) is packaged into the HTTP form to result and returns to network protocol module (103).
9 network protocol modules (103) send to Network Interface Module (101) after return results is carried out the related protocol processing.
10 Network Interface Modules (101) send to packaged Frame on the network from network interface, issue control desk.The user just can see the return results of command execution on the IE browser.

Claims (5)

1 one kinds under the situation of equipment itself not being made amendment, will have the equipment or the instrument access network of serial output interface, and realize the device of remote maintenance, management.It is characterized in that: this device comprises: software systems (100), hardware system (200).
2 devices as claimed in claim 1 is characterized in that: software systems (100) comprising:
Network Interface Module (101): mainly be the driving that realizes the network interface chip, the data transmit-receive work of control network interface chip.
Serial interface module (102): mainly be the driving that realizes serial port chip, and according to the communication function between the serial ports of realization of facility information transport format table and subscriber equipment.It receives the order from facility information access module (108), converts it to the form that equipment is supported, sends to subscriber equipment.Simultaneously, also be responsible for receiving the message of sending, and to the facility information access module (108) of send from subscriber equipment.
Network protocol module (103): mainly be to realize the TCP/IP procotol, make this device can access network, and mutual by the supvr of network and far-end.
WEB interface module (104): mainly be to realize WEB SERVER function and with the dynamic data in the system with form the html page organic connections of user interface, provide an apparatus remote maintenance interface to the supvr of far-end.By this interface, the user can the network far-end by the WEB BROWSER browsing mode of using close friend directly perceived come to subscriber equipment and this device operate, maintenance and management.Carry out WEB and browse and can use present standard browser, as: IE, NETSCAPE etc.This module is responsible for receiving and the order of interpreting user, and analysis user order then at the operand of user command, sends to scheduler module with operation and goes to carry out, and return the result that agreement is carried out, and delivers user terminal displays.
Scheduler module (105): mainly realize a data Access Model.By it, can visit and be provided with the data in other modules in the equipment.Receive the read-write requests of WEB interface module (104) when scheduler module after, search database is to determine the object of this operation.If to the operation of this device, then send to processing module (107) and handle; If to the operation of subscriber equipment, then send to user agent module (106) and handle.
User agent module (106): mainly be the agency who serves as calling party equipment.After this module receives that scheduler module (105) is delivered next request of access, pre-service is carried out in this request, give facility information access module (108) then and handle, and the result that will return is converted to displayable character string forms and returns to debugging module (105).
Configuration module (107): main processing some configuration orders relevant of being responsible for this device, as the configuration of user equipment information acquisition tables, the configuration of subscriber equipment definition list, program online updating or the like.When this device is applied on the dissimilar equipment, only can realize the remote maintenance of novel user equipment is managed by revising these allocation lists.
Facility information access module (108): mainly provide subscriber equipment various performance datas collection and function is set.This module can generate the order of the specific data of gathering subscriber equipment according to user equipment information acquisition tables self-timing, and sends on the serial equipment by serial interface module (102); Also can generate collection or control command, and send on the subscriber equipment by serial interface module (102) according to the request of user agent module (106) to a certain user equipment information.
3 devices as claimed in claim 1 is characterized in that: hardware system (200) comprising:
Network interface module (201): 10/100M Ethernet access function is provided;
Power panel module (202): for equipment provides power supply;
CPU module (203): for equipment provides computing power;
Expansion serial port module (204): the serial ports access capability is provided;
FLASH module (204): the storage ability of information when the system power down is provided;
Memory modules (204): memory function is provided.
4 adopt device as claimed in claim 1, it is characterized in that: when some subscriber equipmenies that serial communication interface arranged were increased remote maintenance functions, operation steps was as follows:
(1), revises the subscriber equipment definition list of this device, the serial port communicating protocol that designated user equipment is adopted according to the actual conditions of subscriber equipment.
(2) according to the actual conditions of subscriber equipment, revise the user equipment information acquisition tables of this device, this table definition to from subscriber equipment, gather which data, acquisition mode is (timing acquiring or receive order then gather) how again, acquisition form etc.If timing acquiring then need be provided with acquisition time at interval.
(3) preserve configurations such as subscriber equipment definition list and user equipment information acquisition tables, start this device and start working.After this, just can read, be provided with the various data in the subscriber equipment on the administration page of this device.
5 adopt device as claimed in claim 1, it is characterized in that: when having the subscriber equipment increase remote maintenance functions of serial communication interface to many, operation steps is as follows:
(1) these equipment is connected on this device simultaneously.
(2) according to the actual conditions of subscriber equipment, revise the subscriber equipment definition list of this device, specify the serial port communicating protocol that every subscriber equipment adopted.
(3) according to the actual conditions of subscriber equipment, revise the user equipment information acquisition tables of this device, this table definition to from every subscriber equipment, gather which data, acquisition mode is (timing acquiring or receive order then gather) how again, acquisition form etc.If timing acquiring then need be provided with acquisition time at interval.
(4) preserve configurations such as subscriber equipment definition list and user equipment information acquisition tables, start this device and start working.
After this, on the administration page of this device, just can read, be provided with the various data in the subscriber equipment.
CNA031289460A 2003-05-30 2003-05-30 Universal industrial online and remote management device and method Pending CN1553318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA031289460A CN1553318A (en) 2003-05-30 2003-05-30 Universal industrial online and remote management device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA031289460A CN1553318A (en) 2003-05-30 2003-05-30 Universal industrial online and remote management device and method

Publications (1)

Publication Number Publication Date
CN1553318A true CN1553318A (en) 2004-12-08

Family

ID=34322311

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA031289460A Pending CN1553318A (en) 2003-05-30 2003-05-30 Universal industrial online and remote management device and method

Country Status (1)

Country Link
CN (1) CN1553318A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101815069A (en) * 2010-03-24 2010-08-25 河北钢铁股份有限公司邯郸分公司 Method for developing management system of program-controlled switch by using asp technology
CN102427417A (en) * 2011-12-08 2012-04-25 北京工业大学 System and method for remotely controlling Internet of things access equipment
CN102520982A (en) * 2011-11-24 2012-06-27 华为技术有限公司 Method and device of node hot plug
CN101674333B (en) * 2009-09-29 2012-08-08 飞天诚信科技股份有限公司 Interacting and generating method for unmanaged language and NET server side, device and system therefor
CN104468785A (en) * 2014-12-08 2015-03-25 上海斐讯数据通信技术有限公司 Electronic device, server device, and data request submitting method and processing method
US9081912B2 (en) 2011-11-24 2015-07-14 Huawei Technologies Co., Ltd. Method and apparatus for node hot-swapping
CN105025078A (en) * 2015-05-29 2015-11-04 上海大学 Remote configuration method of energy consumption data collector
CN105187535A (en) * 2015-09-14 2015-12-23 苏州米瑞蔻智能装备有限公司 Network control method of force standard machine
CN109634223A (en) * 2018-10-31 2019-04-16 武汉三力通信有限责任公司 A kind of platform of internet of things based on 3LIOT

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101674333B (en) * 2009-09-29 2012-08-08 飞天诚信科技股份有限公司 Interacting and generating method for unmanaged language and NET server side, device and system therefor
CN101815069A (en) * 2010-03-24 2010-08-25 河北钢铁股份有限公司邯郸分公司 Method for developing management system of program-controlled switch by using asp technology
CN102520982A (en) * 2011-11-24 2012-06-27 华为技术有限公司 Method and device of node hot plug
US9081912B2 (en) 2011-11-24 2015-07-14 Huawei Technologies Co., Ltd. Method and apparatus for node hot-swapping
CN102427417A (en) * 2011-12-08 2012-04-25 北京工业大学 System and method for remotely controlling Internet of things access equipment
CN104468785A (en) * 2014-12-08 2015-03-25 上海斐讯数据通信技术有限公司 Electronic device, server device, and data request submitting method and processing method
CN105025078A (en) * 2015-05-29 2015-11-04 上海大学 Remote configuration method of energy consumption data collector
CN105025078B (en) * 2015-05-29 2018-07-10 上海大学 A kind of remote configuring method of energy consumption data acquisition device
CN105187535A (en) * 2015-09-14 2015-12-23 苏州米瑞蔻智能装备有限公司 Network control method of force standard machine
CN109634223A (en) * 2018-10-31 2019-04-16 武汉三力通信有限责任公司 A kind of platform of internet of things based on 3LIOT

Similar Documents

Publication Publication Date Title
CN1253813C (en) Contents-index search system and its method
CN1852209A (en) Remote process transfering method and system in distribution type control system
CN101061454A (en) Systems and methods for managing a network
CN1815971A (en) Green internet-accessing system based on concentrated management and dictributed control, and method therefor
CN1553318A (en) Universal industrial online and remote management device and method
CN1783804A (en) Realtime updating method for net page data
CN1874226A (en) Terminal access method and system
CN1787000A (en) System and method for centralized managing and dispatching of batch work
CN1453959A (en) Remote control system and method for domestic network
CN1731740A (en) Network device management method and network management system
CN1558574A (en) Method and system for realizing wireless industrial monitoring by means of cell phones
CN1901453A (en) Embedded far remote central maintenance device and method
CN1141659C (en) Remote user operation process recording and restoring method
CN101719991B (en) Video matrix protocol converter
CN1180340C (en) Cross expanding device and method via radio communication
CN101079903A (en) Method and system based on remote login of user terminal
CN1691662A (en) Electronic apparatus system and data control apparatus
CN1992668A (en) Wireless terminal accessing device based on blue tooth interface
CN1506868A (en) Method of remote controlling computer in different area via computer network
CN101075992A (en) Method and system for exchanging IP multiple service
CN1180587C (en) Method for controlling gateway and realizationg of controlling intercommunication between nodes in sub network of household network
CN1815985A (en) Wide-band network system
CN1761211A (en) Method and system for managing and controlling network device of supporting wireless mobile communication
CN1732653A (en) server for routing connection to client apparatus
CN1328299A (en) Method and system for collecting and inquiring information

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication