CN1549148A - Electronic products operating program back-up apparatus - Google Patents
Electronic products operating program back-up apparatus Download PDFInfo
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- CN1549148A CN1549148A CNA031297064A CN03129706A CN1549148A CN 1549148 A CN1549148 A CN 1549148A CN A031297064 A CNA031297064 A CN A031297064A CN 03129706 A CN03129706 A CN 03129706A CN 1549148 A CN1549148 A CN 1549148A
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- main memory
- multiplexer
- electronic product
- memory
- processing unit
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Abstract
The electronic product operation program back-up device includes main memory, CPU, serial port, auxiliary memory, multiplexer and switch. The main memory has operation program, application software and various operation relevant information stored; the CPU controls the operation of the household electronic products in LAN according to the operation program in the main memory; the auxiliary memory is for back-up of the operation program; the multiplexer serves to make the CPU use information in the main memory or the auxiliary memory optionally; and the switch is for the user to select the I/O path in the multiplexer as require. The beneficial effects of the present invention includes simple structure, high stability, etc.
Description
Technical field
The present invention relates to electronic product, particularly relate to the operation program backing-up device of the electronic product that contains central processing unit.
Background technology
At present, family's automatic control technology has arrived the practicability stage.By family's automatic control technology, when can being in or going out, people all can control each electronic product in the family at any time.Originally, family's automatic control technology is only limited to by telephone wire or infrared ray to be controlled single electronic product, is not unified into network between each electronic product.Along with the continuous development of network technology, present family's automatic control technology towards be the LAN (Local Area Network) that electronic product constitutes, people can control each electronic product in the LAN (Local Area Network) by network manager.
As shown in Figure 1, electronic product such as computer, washing machine, refrigerator and the air conditioner etc. used always in the family lan generally all have central processing unit 10, internal memory 11 and communicate by letter usefulness serial line interface 12.Central processing unit 10 can be controlled the operation of electronic product according to being stored in running program in the internal memory 11, and serial line interface 12 is connected with network manager, so that this electronic product territory network manager is communicated according to suitable communication protocol.
At present, various domestic electronic appliances generally adopt the lower serial line interface of price.Production firm's difference of electronic product, the communication protocol of its serial line interface also may be different.Therefore, need to change communication protocol sometimes, so that all the electronic product compatibilities in itself and the LAN (Local Area Network).
When changing the communication protocol of LAN (Local Area Network), need new communication protocol is stored in the internal memory 11 of electronic product, the result of making might change the current running program of electronic product like this, makes running program impaired, thereby causes the misoperation of electronic product maybe can't work.
Maloperation when in addition, the client uses, running program mistake and hardware fault also may cause the misoperation of electronic product maybe can't work.
Misoperation appears in electronic product maybe can't work the time, can only change the mainboard that comprises central processing unit 10 and internal memory 11.
In sum, there is following shortcoming in above-mentioned existing domestic electronic appliances:
One. can only change mainboard when running program breaks down, cause economically and temporal loss;
Two. when changing the communication protocol of LAN (Local Area Network), might damage the running program of electronic product.
Summary of the invention
Technical matters to be solved by this invention is, overcomes the shortcoming of above-mentioned existing domestic electronic appliances, and a kind of operation program backing-up device of electronic product is provided.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: electronic product operation program backing-up device of the present invention comprises: main memory, central processing unit, serial line interface, auxiliary memory and multiplexer and switch.
Storing the relevant information of running program and application software and various operations in the described main memory; Described central processing unit comes the operations of each domestic electronic appliances in the control area net according to the running program in the main memory; Described auxiliary memory is used for the backup operation program; The effect of described multiplexer is to make central processing unit use information in the main memory or the information in the auxiliary memory with being allowed a choice; The effect of described switch makes the I/O path of selecting multiplexer for the user on demand.
The invention has the beneficial effects as follows: simple in structure, can change communication protocol when repairing the running program of damaging and not damaging internal memory by the shirtsleeve operation switch.Therefore, can improve the stability of system, reduce the expense of after sale services such as replacement part, improve the work efficiency of after sale service.
Description of drawings
Fig. 1 is the circuit block diagram of existing domestic electronic appliances part control assembly;
Fig. 2 is the circuit block diagram of the operation program backing-up device of electronic product of the present invention.
Among the figure:
10: central processing unit 11: main memory
12: serial line interface 21: auxiliary memory
22: multiplexer 23: switch
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
As shown in Figure 2, electronic product operation program backing-up device of the present invention comprises: main memory 11, central processing unit 10, serial line interface 12, auxiliary memory 21 and multiplexer 22 and switch 23; Storing the relevant information of running program and application software and various operations in the described main memory 11; Described central processing unit 10 comes the operations of each domestic electronic appliances in the control area net according to the running program in the main memory 11; Described auxiliary memory 21 is used for the backup operation program; The effect of described multiplexer 22 is to make central processing unit 10 use information in the main memory 11 or the information in the auxiliary memory 21 with being allowed a choice; The effect of described switch 23 makes the I/O path of selecting multiplexer 22 for the user on demand.
The course of work to electronic product operation program backing-up device of the present invention is illustrated below:
In the LAN (Local Area Network) during each domestic electronic appliances operate as normal, central processing unit 10 according in the main memory 11 running program control the work of each domestic electronic appliances.
For a certain reason, when the running program of main memory 11 was damaged, when maybe needing to change the communication protocol of LAN (Local Area Network), some domestic electronic appliances electrical equipment can't operate as normal in the LAN (Local Area Network).
When the user finds some domestic electronic appliances operation irregularity, when finding that promptly running program is damaged, can make the I/O of the information of carrying out between central processing unit 10 and the auxiliary memory 21 by switch 23.
At first, when finding that running program is damaged, but user's powered-down is selected auxiliary memory 21 by switch 23 and multiplexer 22.
Then, power-on again.
At this moment, the central processing unit 10 of electronic product is according to this electronic product operate as normal of backup operation programmed control that stores in the auxiliary memory 21.
Meanwhile, the user can be by network service with impaired running program reparation in the main memory 11.After repair finished, powered-down was selected main memories 11 by switch 23 and multiplexer 22 once more, power-on again, and central processing unit 10 is controlled this electronic product operate as normal according to the running program that has been repaired in the main memory 11.
In addition, when needs change the communication protocol of LAN (Local Area Network), but user's powered-down is selected auxiliary memory 21 by switch 23 with by multiplexer 22.
Then, power-on again.
At this moment, the central processing unit 10 of electronic product is according to this electronic product operate as normal of backup operation programmed control that stores in the auxiliary memory 21.
Meanwhile, the user is by the communication protocol in the network service change main memory 11.After the process that changes communication protocol finished, powered-down was selected main memories 11 by switch 23 and multiplexer 22 once more, power-on again, and central processing unit 10 is by the control of the running program in the main memory 11 electronic product operate as normal.
Claims (1)
1. an electronic product operation program backing-up device is characterized in that: comprising: main memory (11), central processing unit (10), serial line interface (12), auxiliary memory (21) and multiplexer (22) and switch (23); Storing the relevant information of running program and application software and various operations in the described main memory (11); Described central processing unit (10) comes the operations of each domestic electronic appliances in the control area net according to the running program in the main memory (11); Described auxiliary memory (21) is used for the backup operation program; The effect of described multiplexer (22) is to make central processing unit (10) use information in the main memory (11) or the information in the auxiliary memory (21) with being allowed a choice; The effect of described switch (23) makes the I/O path of selecting multiplexer (22) for the user on demand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031297064A CN1549148A (en) | 2003-05-13 | 2003-05-13 | Electronic products operating program back-up apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031297064A CN1549148A (en) | 2003-05-13 | 2003-05-13 | Electronic products operating program back-up apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1549148A true CN1549148A (en) | 2004-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031297064A Pending CN1549148A (en) | 2003-05-13 | 2003-05-13 | Electronic products operating program back-up apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1549148A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105187752A (en) * | 2015-07-31 | 2015-12-23 | 深圳市哈工大交通电子技术有限公司 | High-reliability image processing platform |
-
2003
- 2003-05-13 CN CNA031297064A patent/CN1549148A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105187752A (en) * | 2015-07-31 | 2015-12-23 | 深圳市哈工大交通电子技术有限公司 | High-reliability image processing platform |
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