CN1674545A - Address setting system and address setting method - Google Patents
Address setting system and address setting method Download PDFInfo
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- CN1674545A CN1674545A CN 200410033203 CN200410033203A CN1674545A CN 1674545 A CN1674545 A CN 1674545A CN 200410033203 CN200410033203 CN 200410033203 CN 200410033203 A CN200410033203 A CN 200410033203A CN 1674545 A CN1674545 A CN 1674545A
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Abstract
The present invention provides an address setting system used in monitoring system and address setting method. The described address setting system includes: address setting card, user can set into address aimed at monitoring card and can transfer the address setting information including the information related to described address to described monitoring card; monitoring card which can be used for receiving address setting information, and setting its self-body monitoring card address according to address setting information; and monitoring main machine which can utilize address of monitoring card to identify every monitoring card to implement monitoring operation.
Description
Technical field
The present invention relates to the supervisory control system field of electronic products such as automation, computer, especially the monitor card of a plurality of node machines of computers group monitoring uses the field, particularly, relate to a kind of address setting system in this field and addressing method that utilizes this system of being applied to.
Background technology
In automation, computers group monitoring system, often adopt the architecture of a monitoring host computer and a plurality of monitor card or equipment, the monitor message between monitoring host computer and the monitor card realizes by certain agreement alternately.To each monitor card an Address Recognition will be arranged all, the address of each monitor card is different, and monitoring host computer is discerned each monitor card by these addresses exactly, sets up communication with it.
In computers group monitoring, the mode that realizes monitoring at present is that a monitor card is installed in each node machine, and each monitor card is set an address.The address setting method of using is that one 8 toggle switch, the address that is used to realize the address monitor card are set on each piece monitor card at present.8 bit switches can be set the monitor card of 255 addresses, when the node machine surpasses 255, just need increase toggle switch on the hardware of monitor card, and this causes inconvenience on hardware.In addition, monitor card will be placed on node machine inside usually, may change the physical location of node machine during the user uses, and so just needs the address of change monitor card, avoid causing the physical position address of node machine not conform to, on monitoring interface, cause the monitoring display confusion with the address that monitoring is set.Monitor card is installed in the node machine not quick detachable usually, and is especially in the node computer below 2U, because the space is very limited, very compact during installation.Can need loosening a plurality of screws during the dismounting of the node machine that has, it is very big not convenient that this causes for on-the-spot maintenance.
Say that on the whole the toggle switch that extensively adopts realizes that there is following defective in the method for monitor card address setting at present: because needs are artificially manually realized the address by toggle switch, set the number of addresses section according to binary numeral, therefore make mistakes easily in monitoring; When the cluster nodes machine surpassed 255, just needing increased toggle switch so that realize location more, just needs the change hardware designs; In addition, when physical address and actual address were inconsistent, more node machine and monitor card need be dismantled in the change of address, the field modification difficulty.
Summary of the invention
Consider that above-mentioned defective has proposed the present invention, an object of the present invention is to propose a kind of address setting system and addressing method, this system and method can adopt the mode of software set to realize, and no longer adopts toggle switch to realize the monitor card address.
Another object of the present invention is to propose a kind of address setting system and addressing method, and this system and method can provide 1～65535 address for the node machine, thereby can hold more node machine in supervisory control system.
In addition, another object of the present invention is to propose a kind of address setting system and addressing method, wherein, address setting is realized by the address setting device of special use, in case address setting, later on this monitor card just uses this address, unless change new address, can not the changing because of monitor card power down etc. of this address.The address of using this address setting system can conveniently realize the online change monitor card does not need to dismantle node machine and monitor card.
To achieve these goals, according to the present invention, a kind of address setting system that uses in supervisory control system has been proposed, described address setting system comprises: the address setting card, by the user it is set address at monitor card, and transmit the address setting message that comprises with described address relevant information to described monitor card; Monitor card is used for the receiver address setup message, and according to the address setup message, the monitor card address of himself is set; And monitoring host computer, described monitoring host computer utilizes the address of monitor card to discern each monitor card to realize policer operation.
Preferably, described monitor card sends the address setting response message to the address setting card, with the result to the user notification address setting.
According to the present invention, in described address setting system, described monitor card comprises: interface control module is used to carry out the control and treatment of other interfaces of monitor card; First communication interface is communicated by letter with monitoring host computer by described first communication interface, and receives address setting message and send address response message to the address setting card from the address setting clamping; First memory cell is used to deposit the working procedure of monitor card and set the address, and is used to deposit temporary transient data; And first controller, be the core component of monitor card, be responsible for handling the each task of monitor card and carry out program in the memory cell.
Preferably, described first memory cell is non-volatile random asccess memory.
According to the present invention, in described address setting system, described address setting card comprises: input unit is used to import the address of the monitor card that will set; Display unit is used to show by the address of input unit input and the implementation and the result of address setting; Second memory cell is used to store the executive program of this address setting card; The second communication interface is used for sending address setting message and setting response message from the monitor card receiver address to monitor card; Second controller is used for carrying out the program that reads from memory, and the operation of control input unit, second communication interface and display unit.
Preferably, described input unit is the keyboard with function key and numerical key, and described display unit is a LCD display.
According to the present invention, in described address setting system, described address setting message and address setting response message comprise: source address, and the source address that presentation address is set is the address of address setting card; Destination address, the destination address that presentation address is set is the address of monitor card; Command information is represented the order relevant with address setting; State information is illustrated in the exectorial state information of monitor card in the address setting process; Set the address, expression offers the setting address of monitor card; And check information.
Preferably, the length of the monitor card address of described setting is 16.
According to the present invention, a kind of addressing method that uses in the address setting system of supervisory control system has been proposed, described address setting system comprises: the address setting card, by the user it is set address at monitor card, and transmit the address setting message that comprises the information relevant with described address to described monitor card; Monitor card is used for the receiver address setup message, and according to the address setup message, the monitor card address of himself is set; And monitoring host computer, described monitoring host computer utilizes the address of monitor card to discern each monitor card to realize policer operation, and described addressing method may further comprise the steps: address input step, the address that input is set; The address forwarding step at address setting Ka Chu, utilizes address setting information, will send to monitor card by the address of address input step input; The address receiving step at the monitor card place, is received address setting message from the address setting clamping; The address setting step at the monitor card place, responds so that the address is provided with according to the address setup message, and sends the address setting response message to the address setting card; The address setting response of step is at the monitor card place, according to the address setting response message, to the result of user notification address setting.
According to the present invention, described address input step comprises following substep: pass through the input unit Input Address by the user; Judge whether address value is effective; If address value is effective, then enter the address forwarding step; And if address value is invalid, then notify the user to re-enter by display unit.
According to the present invention, described address setting step comprises: judge whether the command information in address setting message is that the value that revise the address is prepared in expression; Do not prepare the value that revise the address if described command information is not expression, then carry out other tasks and handle; If it is the value that revise expression preparation address, then waits for the message that wherein comprises the address setting command information and judge whether wait is overtime; If overtime, then return error message; If when receiving the address setting message that comprises the address setting command information in the given time, then whether the packet that receives of verification is correct, if the packet that receives is incorrect, then returns error message; If the packet that receives is correct, then set the address of monitor card according to the new address in the setup message of address; Judge whether new address revises and preserve successfully; If unsuccessful, then return error message, if correct information is then returned in success.
According to the present invention, described address setting response of step comprises: when returning when comprising that state information is expressed as the address setting response message of correct information, show correct address to the user; When returning when comprising that state information is expressed as the address setting response message of error message, notify the user to re-enter the address.
Description of drawings
In conjunction with the accompanying drawings, from following detailed description, above-mentioned and other purposes, feature and advantage of the present invention will become apparent, and will become and understand more easily, wherein:
Fig. 1 shows the block diagram according to the system configuration of address setting of the present invention system;
Fig. 2 shows the block diagram according to the monitor card in the address setting system shown in Figure 1 of the present invention;
Fig. 3 shows the block diagram according to the address setting card in the address setting system shown in Figure 1 of the present invention;
Fig. 4 shows the format chart of employed address setting message and address setting response message in address setting system shown in Figure 1;
Fig. 5 shows the flow chart according to monitor card in the address setting of the present invention system and the operation of the address setting between the address setting card;
Fig. 6 shows the flow chart according to the operation of the monitor card in the address setting of the present invention system;
Fig. 7 shows the flow chart according to the operation of the address setting card in the address setting of the present invention system;
Embodiment
Below with reference to these accompanying drawings the preferred embodiments of the present invention are described.Owing to may make theme of the present invention unclear, therefore, omit detailed description hereinafter to known function and structure.
As an example, in computers group monitoring, a group of planes generally includes a plurality of racks, each rack comprises a plurality of node machines, each node machine all has a monitor card, and a monitoring host computer can be with a plurality of monitor cards, and the number of band monitor card is determined by the node machine number of each rack.The address of each monitor card all is different in the system.Each monitor card all has a unique address, is convenient to monitoring host computer and discerns each monitor card, to realize monitoring function.
Fig. 1 shows according to the present invention, the block diagram of the system configuration of the address setting system 10 that uses in above-mentioned computers group monitoring.As shown in Figure 1, comprise according to address setting of the present invention system 10: monitor card 2 and address setting card 3 in monitoring host computer 1, a plurality of node machine (not shown).In system shown in Figure 1 10, be provided with address setting card 3 individually, described address setting card 3 is used to be provided with the address of the monitor card 2 of each node machine, and monitor card 2 is used to store and have the address of being set by address setting card 3.Monitoring host computer 1 utilizes the setting address of monitor card 2 storages that set by address setting card 3, discerns a plurality of node machines of each monitor card 2, thereby communicates to realize policer operation with each monitor card 2.
Fig. 2 shows the block diagram according to the monitor card 2 in the address setting system 10 shown in Figure 1 of the present invention.As shown in Figure 2, described monitor card 2 comprises: interface control module 201 is used to carry out the control and treatment of other interfaces of monitor card 2, such as measuring voltage electric current etc.; Communication interface 202, it is external communication interface, monitor card 2 can be communicated by letter with monitoring host computer 1 by this interface 202, and the address setting of monitor card 2 also is by this interface and address setting cartoon letters, that is, send the address setting response message from address setting card 3 receiver address setup messages and to address setting card 3; Memory cell 203 is used to deposit the working procedure and the address of monitor card 2, and is used to deposit temporary transient data; Controller 204 is core components of monitor card 2, is responsible for handling the each task of monitor card 2 and the program in the execution memory cell 203.
Wherein, described memory cell 203 is non-volatile random asccess memory, except the working procedure of storage monitor card 2, wherein also stored 16 monitor card address, 1 to 65535 node machine can be held in the supervisory control system thereby make, that is, 1 to 65535 monitor card can be held.
Figure 3 illustrates block diagram according to the address setting card 3 in the address setting system 10 shown in Figure 1 of the present invention.As shown in Figure 3, address setting card 3 comprises: input unit 301 is used to import the address of the monitor card 2 that will set; Display unit 302 is used to show by the address of input unit 301 inputs and the implementation and the result of address setting; Memory cell 303 is random asccess memory, is used to store the executive program of this address setting card 3; Communication interface 304 is and the communication interface of monitor card 2 to be used for sending address setting message to monitor card 2, and to set response message from monitor card 2 receiver addresses.Controller 305 is control cores of address setting card 3, carries out the program that reads from memory, is used to control the operation of input unit, communication interface 304 and display unit 302.
Wherein, input unit 301 can be a keyboard, and described keyboard comprises 0～9 10 numeric keys, a function selecting key and an acknowledgement key.Numerical key is used to import the address of the monitor card that will set, confirms to carry out by acknowledgement key, and function key is selected the address set-up function.Described display unit 302 can be such as various displays such as LCD.
As mentioned above, in address setting system as shown in Figure 1, the address setting card 3 that the address of monitor card 2 writes by similar monitor card 2 writes, in this case, at first, on address setting card 3, set the address that will write, to be written to from the address of address setting card among the memory 203 of monitor card 2 by communication interface 202, so that memory 203 has this address, because writing of address do not need to dismantle node machine and monitor card 2, the scope of address can be provided with flexibly from 1～65535 simultaneously, and is on-the-spot very easy to use.
Wherein, need utilize address setting message, will write and be kept in the memory cell 203 from the address in the address setting message of monitor card 2 of address setting card 3 via communication interface 202.In case the address writes success, this address just is kept in the memory cell 203, even monitor card 2 power down, data can not lost yet, monitor card 2 will use this address, unless there is new address change, unless promptly write new address again by address setting card 3.Simultaneously, monitor card 2 also will send the address setting response message to address setting card 3, with the response message of notifying address setting to address setting card 3.
In addition, the address of monitor card 2 is kept among the memory cell of monitor card, and the change of address needs the address setting card to be provided with, for avoid the monitor card address because factors such as interferences cause variation, certain agreement is followed in the change of address.When changing the address of monitor card, the address setting card at first sends to order PrepareAddress who prepares to change the address of monitor card, and monitor card is in the state of preparing to change the address after receiving order, waits for the address modification order that the address card sends.The address setting card sends address setting order SetAddress to monitor card, and monitor card is carried out after receiving order, and execution result is sent to the address setting card, the success of address setting card display setting.Hereinafter, specifically described the process of address setting.
Fig. 4 shows the format chart of employed address setting message and address setting response message in address setting system 1 shown in Figure 1.
Particularly, as shown in Figure 4, the address setting protocol format is as follows between monitor card and the address setting card:
In this form, comprise following field: 0xA0, destL, destH, scrL, scrH, command, status, newAddL, newAddH, checksun, 0xA5, in Fig. 4, show the length of each field respectively, will the implication of each field be made an explanation below
0xA0: expression packet packet header;
DestL, destH represent the low level and the high position of destination address, promptly represent the address of monitor card
ScrL, scrH represents source address, presentation address is set the address of card or monitoring main card;
Command represents command type, and when its value was 0x01, the expression order was PrepareAddress, that is, the preparation of notice monitor card changes the address; And be 0x02 when it is worth, that is, order SetAddress is revised in the address, and expression can change the address.
Status represents executing state, when each monitor card is finished and is correct, returns to address setting card 0x00, otherwise returns other numerical value to it.In addition, 0x22 represents to order PrepareAddress to receive, and 0x66 represents that another order SetAddress receives.
The new address of the monitor card that newAddL, newAddH indicate to change, if when the value of command field is 0x01, its numerical value is 0, only this field just can be effective when the value of command field is 0x02.
Checksun represent the packet verification and, the data accumulation except packet header and bag tail;
0xA5 represents the packet tail.
Below the operation of address setting system and monitor card and address setting card will be described at accompanying drawing, though in practice, all be to carry out on the content-form of all transmissions and reception with the address setting message that comprises various information and the mode of address setting response message, but for easy, do not producing under the situation about obscuring, the transmission of involved message content directly is described with the value of the information that comprises in the message in the following description.
Below with reference to Fig. 5 flow chart according to monitor card in the address setting of the present invention system and the operation of the address setting between the address setting card is described.In the following description, 0x01,0x02 are the Command command fields in the protocol frame, and return state 0x22,0x66 are the status fields, and the concrete implication of these values all is described in the protocol format part of Fig. 4.
The address setting card sends address setting message to monitor card, and wherein the value of command field is 0x01, and expression is prepared the address and revised order (S502), revises state thereby the notice monitor card enters the address, and at this moment, the address setting card is waited for the response of monitor card; Monitor card receives the order that makes an immediate response after the order, sends the address setting response message to the address setting card, and wherein the 0x22 that received for the expression order of the value of status field then, enters the address and revises state, waits for that the address revises order (S504); Judge whether the address setting card receives monitor card response (S506), if the address setting card is received the 0x22 ("Yes" among the S506) of monitor card response, just send address modification order 0x02 and new address to monitor card (S508), the address setting card is waited for the response of monitor card to 0x02; If the address setting card is not waited until the response 0x22 ("No" in S506) of monitor card to order 0x01, then the address setting card sequentially sends order (S526), if the response less than monitor card still ("Yes" among the S526), (S532) withdrawed from the address setting failure; Monitor card response address behind the 0x01 that receives orders is set card, and wait command 0x02 if receive order 0x02 (S508), sets card status field 0x66 (S510) with regard to the return address; If wait for that 0x02 is overtime, just return wrong to the address setting card; The address setting clamping is just waited for the execution result of monitor card after receiving the response of monitoring to order 0x02, and judges whether the address setting card receives monitor card response (S512); If the response ("No" among the S512) to monitor card that the address setting card does not receive sequentially sends order 0x02 (S530) to monitor card, if still wait the response ("Yes" among the S530) less than monitor card, then (S532) withdrawed from failure.Monitor card receives the laggard line data verification of address setting order 0x02 (S514), if data check mistake ("No" among the S514) returns to the order of address setting card request and resends; If data check is correct, then carry out the setting of address; Monitor card returns to address setting card (S516) with the address setting result; And judge whether the address setting card receives execution result (S518), if the address setting card is waited for the execution result overtime ("No" among the S518) of monitor card, then (S522) withdrawed from failure, not overtime if ("Yes" among the S518), success then is set, finish (S520), return status field 0x00.
Next, the flow chart of the operation of the monitor card in address setting according to the present invention system will be described with reference to Figure 6; Monitor card is handled other tasks (S602) and is finished, and whether the command field that detects the address setting message of receiving from the address setting clamping is 0x01 (S604), if there be not ("No" among the S604), continues to handle other tasks (S618); When receiving the order of preparing to change the address, be that command field in the address setting message is when being 0x01 ("Yes" among the S604), this moment, monitor card was in time status, to wait for the address setting order, be the order 0x02 (S606) of the command field in the address setting message, if do not receive order ("No" among the S606) in 10 milliseconds, then overtime to withdraw from the address that keeps original constant, and the order that sends an address modification failure is to address setting card (S616); When receiving described address setting order ("Yes" among the S606), correctly whether the packet that verification receives (S608), if verification and incorrect ("No" among the S608), it is constant then to withdraw from the address that keeps original, and the order that sends an address modification failure is to address setting card (S616); If packet check correct ("Yes" among the S608), new address in the receiver address setup message, and by monitor card change self address (S610), in addition, carry out verification and whether preserve success (S612) to confirm that new address is revised, if address modification correct ("Yes" among the S612), then send success status 0x00 to the address setting card, the Status field that is about in the address setting response message is set to 0x00 (S614), otherwise, execution error sends status of fail 0x01 to the address setting card, and the Status field that is about in the address setting response message is set to 0x01 (S616).
Next, the flow chart of the operation of the address setting card in address setting according to the present invention system will be described with reference to Figure 7; Function key is selected address set-up function (S702); From the address (S704) that the keyboard input will be set; Acknowledgement key is confirmed (S706); The judgement (S708) of validity is carried out in address to input, if go beyond the scope (setting range 0x0001～0xFFFF) ("No" among the S708), then (S714) re-entered in prompting; Wait for the return results (S710) of monitor card, if wrong ("No" among the S710), then effective address (714) is re-entered in prompting; If correct ("Yes" among the S710) is set, then on display unit, show the correct address (S712) that is provided with.
Though invention has been described with reference to the preferred embodiments of the present invention, but, these descriptions only are illustrative but not determinate, it should be appreciated by those skilled in the art, under the situation of the spirit and scope that do not break away from claims of the present invention and limited, can carry out various forms of changes, modification and substitute.
Claims (15)
1. address setting system that in supervisory control system, uses, described address setting system comprises:
The address setting card is set address at monitor card by the user to it, and transmits the address setting message that comprises the information relevant with described address to described monitor card;
Monitor card is used for the receiver address setup message, and according to the address setup message, the monitor card address of himself is set; And
Monitoring host computer, described monitoring host computer utilize the address of monitor card to discern each monitor card to realize policer operation.
2. address setting according to claim 1 system is characterized in that: described monitor card sends the address setting response message to the address setting card, with the result to the user notification address setting.
3. address setting according to claim 1 system, it is characterized in that: described monitor card comprises:
Interface control module is used to carry out the control and treatment of other interfaces of monitor card;
First communication interface is communicated by letter with monitoring host computer by described first communication interface, and receives address setting message and send address response message to the address setting card from the address setting clamping;
First memory cell is used to deposit the working procedure of monitor card and set the address, and is used to deposit temporary transient data;
First controller is the core component of monitor card, is responsible for handling the each task of monitor card and the program in the execution memory cell.
4. according to claim 1 or 3 described address setting systems, it is characterized in that: described first memory cell is non-volatile random asccess memory.
5. according to claim 1 or 3 described address setting systems, it is characterized in that: described address setting card comprises:
Input unit is used to import the address of the monitor card that will set;
Display unit is used to show by the address of input unit input and the implementation and the result of address setting;
Second memory cell is used to store the executive program of this address setting card;
The second communication interface is used for sending address setting message and setting response message from the monitor card receiver address to monitor card;
Second controller is used for carrying out the program that reads from memory, and the operation of control input unit, second communication interface and display unit.
6. address setting system according to claim 1 or 5, it is characterized in that: described input unit is the keyboard with function key and numerical key.
7. address setting system according to claim 1 or 5, it is characterized in that: described display unit is a LCD display.
8. according to claim 1,2, one of 3 and 5 described address setting systems, it is characterized in that: described address setting message and address setting response message comprise: source address, the source address that presentation address is set; Destination address, the destination address that presentation address is set; Command information is represented the order relevant with address setting; State information is illustrated in the state information in the address setting process; Set the address, expression offers the setting address of monitor card; And check information.
9. according to claim 1,2, one of 3 and 5 described address setting systems, it is characterized in that: the length of the monitor card address of described setting is 16.
10. addressing method that in the address setting system of supervisory control system, uses, described address setting system comprises: the address setting card, by the user it is set address at monitor card, and transmit the address setting message that comprises the information relevant with described address to described monitor card; Monitor card is used for the receiver address setup message, and according to the address setup message, the monitor card address of himself is set; And monitoring host computer, described monitoring host computer utilizes the address of monitor card to discern each monitor card to realize policer operation, and described addressing method may further comprise the steps:
The address input step, the address that input is set;
The address forwarding step at address setting Ka Chu, utilizes address setting information, will send to monitor card by the address of address input step input;
The address receiving step at the monitor card place, is received address setting message from the address setting clamping;
The address setting step at the monitor card place, responds so that the address is provided with according to the address setup message, and sends the address setting response message to the address setting card;
The address setting response of step is at the monitor card place, according to the address setting response message, to the result of user notification address setting.
11. addressing method according to claim 10 is characterized in that: described address setting message and address setting response message comprise: source address, the source address that presentation address is set; Destination address, the destination address that presentation address is set; Command information is represented the order relevant with address setting; State information is illustrated in the state information in the address setting process; Set the address, expression offers the setting address of monitor card; And check information.
12. addressing method according to claim 10 is characterized in that: the length of the monitor card address of described setting is 16.
13. addressing method according to claim 10 is characterized in that: described address input step comprises following substep:
Pass through the input unit Input Address by the user;
Judge whether address value is effective;
If address value is effective, then enter the address forwarding step; And
If address value is invalid, then notify the user to re-enter by display unit.
14. according to claim 10 or 13 described addressing methods, it is characterized in that: described address setting step comprises:
Whether the command information of judgement in address setting message is that the value that revise the address is prepared in expression;
Do not prepare the value that revise the address if described command information is not expression, then carry out other tasks and handle;
If it is the value that revise expression preparation address, then waits for the message that wherein comprises the address setting command information and judge whether wait is overtime;
If overtime, then return error message;
If when receiving the address setting message that comprises the address setting command information in the given time, then whether the packet that receives of verification is correct,
If the packet that receives is incorrect, then return error message;
If the packet that receives is correct, then set the address of monitor card according to the new address in the setup message of address;
Judge whether new address revises and preserve successfully;
If unsuccessful, then return error message,
If correct information is then returned in success.
15. according to claim 10 or 13 described address setting steps, it is characterized in that: described address setting response of step comprises:
When returning when comprising that state information is expressed as the address setting response message of correct information, show correct address to the user;
When returning when comprising that state information is expressed as the address setting response message of error message, notify the user to re-enter the address.
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| CNB2004100332037A CN100346616C (en) | 2004-03-26 | 2004-03-26 | Address setting system and address setting method |
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| CNB2004100332037A CN100346616C (en) | 2004-03-26 | 2004-03-26 | Address setting system and address setting method |
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| CN103955195A (en) * | 2014-05-05 | 2014-07-30 | 中国安全生产科学研究院 | Sending and responding method and device of control instruction |
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| KR100420526B1 (en) * | 2002-03-15 | 2004-03-02 | 엘지전자 주식회사 | Home Appliance Network System and Controlling Method for the Same |
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2004
- 2004-03-26 CN CNB2004100332037A patent/CN100346616C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101201785A (en) * | 2006-12-11 | 2008-06-18 | 技嘉科技股份有限公司 | Display device |
| CN101201785B (en) * | 2006-12-11 | 2012-12-05 | 技嘉科技股份有限公司 | Display device |
| CN102546294A (en) * | 2011-12-22 | 2012-07-04 | 江苏讯科通信科技有限公司 | Address read-write and function tester of intelligent switch panel |
| CN103955195A (en) * | 2014-05-05 | 2014-07-30 | 中国安全生产科学研究院 | Sending and responding method and device of control instruction |
| CN103955195B (en) * | 2014-05-05 | 2016-09-14 | 中国安全生产科学研究院 | The transmission of a kind of control instruction, response method and device |
| CN105404180A (en) * | 2015-10-15 | 2016-03-16 | 杭州巨步电子设备有限公司 | Node address setting method applied to intelligent cabinet bus control system |
| CN105404180B (en) * | 2015-10-15 | 2017-11-14 | 杭州巨步科技有限公司 | A kind of node address method to set up being applied in intelligent cabinet bus control system |
| CN106817439A (en) * | 2017-02-10 | 2017-06-09 | 武汉卓威视讯科技有限公司 | A kind of method for obtaining MAC Address |
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| Publication number | Publication date |
|---|---|
| CN100346616C (en) | 2007-10-31 |
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