CN1570880A - Method and device for writing time-related information into non-volatile memory of electronic device - Google Patents

Abstract

The invention relates to a device for writing time-related information into a non-volatile memory of an electronic device, wherein at least two groups of memory areas with different memory addresses are set in the non-volatile memory and correspond to time information of a timing unit, and when the different time information is written into the memory, the different time information is distributed in the memory areas with the different addresses. The main feature is that at least two groups of minute or hour memory areas with different addresses are set, and when the time-related information is written into the memory, the writing times are uniformly distributed in the memory areas with different addresses of the non-volatile memory. Therefore, the writing times of the specific address memory area of the non-volatile memory can be uniformly distributed, and the service life of the memory can be prolonged. It can be applied only once per hour for writing in the address memory area of a specific non-volatile memory. The writing method can prolong the service life of the nonvolatile memory under the condition that the access frequency of the nonvolatile memory is fixed, thereby being more suitable for practical use and having wide industrial utilization value.

Description

Method and device for writing time-related information into non-volatile memory of electronic device

technical field

The present invention relates to a method and device for writing time-related information into a non-volatile memory of an electronic device in the field of information storage, in particular to a method for writing time-related information into different addresses in a non-volatile memory of an electronic device The specific memory area of the non-volatile memory can prolong the service life of the non-volatile memory under the condition that the number of accesses of the non-volatile memory is fixed, so that it is more suitable for the practical method of writing time-related information into the non-volatile memory of the electronic device and its device.

Background technique

The memory area of the non-volatile memory has a limit on the number of times it can be written. Electronic devices such as projection displays need to write data into the memory area of the non-volatile memory every 1 minute, for example. In the case of sacrificing the frequency of information writing, how to prolong the service life of non-volatile memory has become the goal of research and development.

Please refer to FIG. 1 , which is a flowchart of a conventional method for writing time-related information into a non-volatile memory of an electronic device. The following electronic devices take a projection display as an example, and its hardware includes a microprocessor, a non-volatile memory, and a power supply.

In the non-volatile memory writing method of existing conventional projection display, after it is activated (S302) after projection display, microprocessor just starts counting an offset (offset) time (S304), and microprocessor then It is judged whether the offset time interval obtained by counting is greater than the cooling time (S306). When the interval of the offset time was less than the heat dissipation time, the microprocessor continued to count the offset time (S312), and when the interval of the offset time was greater than the heat dissipation time, the microprocessor added 1 to the offset time (S308), and then The offset time after adding 1 is directly written into a fixed address in the non-volatile memory (S310), and then continues to count the offset time (S312).

In the existing known projection display, because of its non-volatile memory for storing the memory area of time-related data, only one hour memory area and one minute memory area are set. Therefore, when the heat dissipation time of the projection display is set to When it is 1 minute, it means that the microprocessor will write to the minute memory area of the non-volatile memory once every 1 minute.

If a specific address memory area of the non-volatile memory has a writing limit of 100,000 times, then the non-volatile memory can only be used for 100000/175200=0.57 years. If the writing limit of the non-volatile memory If the number of times is 1 million times, then the non-volatile memory can only be used for 1000000/175200=5.7 years. The above data represent that after the projection display has been used for a period of time, the non-volatile memory needs to be replaced, or even the projection display will have to be discarded.

To sum up the above, the existing known methods of writing time-related information into the non-volatile memory of electronic devices, because the time-related information is written directly into the fixed hour or minute when writing into the non-volatile memory. In the address memory area, if it is turned on for 8 hours a day, the microprocessor will write 480 times to the non-volatile memory. In one year (365 days), the microprocessor will write 175,200 times to the non-volatile memory, which will cause the projection display to be repaired or scrapped after being used for a period of time, causing inconvenience to the user.

It can be seen that the above-mentioned existing method and device for writing time-related information into a non-volatile memory of an electronic device still have defects, and further improvement is urgently needed.

In order to solve the existing methods of writing time-related information into the non-volatile memory of electronic devices and the defects of their devices, relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time , this is obviously a problem that relevant industry players are eager to solve.

In view of the defects in the above-mentioned existing method of writing time-related information into the non-volatile memory of an electronic device and its devices, the inventor actively researched it based on his rich practical experience and professional knowledge in the design and manufacture of such products for many years Innovation, in order to create a new type of method and device for writing time-related information into the non-volatile memory of electronic devices, which can improve the general existing methods and methods for writing time-related information into non-volatile memories of electronic devices device to make it more practical. Through continuous research, design, and after repeated trial samples and improvements, the present invention with practical value is finally created.

Contents of the invention

The main purpose of the present invention is to overcome the defects of existing methods and devices for writing time-related information into non-volatile memories of electronic devices, and to provide a new non-volatile storage method for writing time-related information into electronic devices. The method and device of the memory, the main technical problem to be solved is to make its main feature be to set at least two sets of memory areas of minutes or hours with different addresses, and when time-related information is written into the memory, it is written into The number of times is evenly distributed in the memory area of different addresses in the non-volatile memory. Therefore, the writing times of the specific address memory area of the non-volatile memory can be evenly distributed, and the service life of the memory can be increased, so that it is more practical and has industrial utilization value.

The purpose of the present invention and the solution to its main technical problems are achieved by adopting the following technical solutions. According to a device for writing time-related information into a non-volatile memory of an electronic device according to the present invention, at least two sets of memory areas with different memory addresses are set in the non-volatile memory corresponding to the time information of a timing unit, When different time information is written into the memory, it is allocated in the memory areas of the different addresses.

The purpose of the present invention and the solution to its technical problems can also be further realized by adopting the following technical measures.

The aforementioned device for writing time-related information into the non-volatile memory of the electronic device, wherein the timing unit is minutes.

The aforementioned device for writing time-related information into a non-volatile memory of an electronic device, wherein the non-volatile memory is an electrically erasable programmable read-only memory.

The purpose of the present invention and its main technical problems are solved by adopting the following technical solutions. A method for writing time-related information into a non-volatile memory of an electronic device according to the present invention includes the following steps: dividing the memory area of at least one timing unit of the non-volatile memory into at least two groups of different addresses; storing a Information related to time is stored in the first memory area of the timing unit; and another information related to time is stored in the second memory area of the timing unit.

The purpose of the present invention and the solution to its technical problems can also be further realized by adopting the following technical measures. The aforementioned method and device for writing time-related information into a non-volatile memory of an electronic device, wherein the timing unit is minutes.

Compared with the prior art, the present invention has obvious advantages and beneficial effects. As can be seen from the above technical solutions, in order to achieve the aforementioned object of the invention, the main technical contents of the present invention are as follows:

The invention proposes a device for writing time-related information into a non-volatile memory of an electronic device. Wherein the non-volatile memory is set with at least two groups of memory areas with different addresses corresponding to minutes or hours, and when time-related information is written into the volatile memory, the write times are evenly distributed among the and other memory areas with different addresses.

The above-mentioned electronic device includes a microprocessor, a non-volatile memory, a power supply and a real-time timer. The writing method is that when it is judged that information related to time needs to be written, the information is first written into the first address memory area of the memory, and next time, when it is judged that information related to time needs to be written, the information is written into Information is written into a second address memory area of the memory.

The invention also proposes a method for writing time-related information into a non-volatile memory of an electronic device. The writing method of the non-volatile memory, the steps include: dividing the memory area of the non-volatile memory into at least one timing unit to have at least two groups of different addresses; storing a time-related information to the first memory area of the timing unit ; Store another time-related information to the second memory area of the timing unit.

The method and device for writing the non-volatile memory of the projection display of the present invention, in view of the large capacity of the current non-volatile memory, write the data to be written into the non-volatile memory into a plurality of addresses. In this way, the service life of the non-volatile memory can be extended, and the non-volatile memory includes a common Erasable Programmable Read-Only Memory (Erasable PROM, "EPROM"), an Electrically Erasable Programmable Read-Only Memory (EPROM) Electrically Erasable PROM, "EEPROM"), or a flash memory (Flash memory) and so on.

By virtue of the above-mentioned technical solution, the method and device for writing the non-volatile memory of the projection display of the present invention, its main feature is to set at least two groups of memory areas of minutes or hours with different addresses, and when the time-related information is written When entering the memory, the write times are evenly distributed in the memory areas of different addresses of the non-volatile memory. Therefore, the writing times of the specific address memory area of the non-volatile memory can be evenly distributed, and the service life of the memory can be increased, so that it is more practical and has industrial utilization value.

To sum up, the special non-volatile memory method and device for writing time-related information of the present invention into an electronic device can be applied to write only one specific non-volatile memory address memory area once per hour. The writing method can prolong the service life of the non-volatile memory when the access times of the non-volatile memory are fixed. It has the above-mentioned many advantages and practical value, and it is indeed innovative in products and methods. Compared with the existing method of writing time-related information into the non-volatile memory of the electronic device and its device, it has a number of improved effects, no matter in Great improvements have been made in products, methods or functions, and there has been great progress in technology, and have produced useful and practical effects, and indeed have enhanced efficacy, so they are more suitable for practical use and have wide application in the industry. value. Honesty is a novel, progressive and practical new design.

The above description is only an overview of the technical solutions of the present invention. In order to understand the technical means of the present invention more clearly and implement them according to the contents of the description, the preferred embodiments of the present invention and accompanying drawings are described in detail below.

Description of drawings

FIG. 1 is a flowchart of a conventional method for writing time-related information into a non-volatile memory of an electronic device.

FIG. 2A is a diagram of the data written in each memory area when the embodiment of the present invention is just turned on.

FIG. 2B is a diagram of the data written in each memory area after one minute of power-on according to the embodiment of the present invention.

FIG. 2C is a diagram of the data written in each memory area after 59 minutes of power-on according to the embodiment of the present invention.

FIG. 2D is a diagram of data written in each memory area after one hour of power-on according to the embodiment of the present invention.

FIG. 2E is a diagram of data written in each memory area after 1 hour and 1 minute of booting according to the embodiment of the present invention.

FIG. 2F is a diagram of data written in each memory area after 3 hours and 2 minutes of starting up according to the embodiment of the present invention.

S302～S316: each process step

Detailed ways

Below in conjunction with the accompanying drawings and preferred embodiments, the method for writing time-related information into the non-volatile memory of an electronic device according to the present invention and its specific structure, method, steps, features and effects will be described in detail as follows: back.

In the present invention, the non-volatile memory provides multiple address memory areas for the same timing unit. Please refer to Figures 2A to 2F. In this embodiment, 59 memory areas with different addresses are provided to provide records related to minutes. Time information, and provide an hour memory area with a fixed address to provide and record time information related to the hour.

In this embodiment, the electronic device is an example of a projection display, and the projection display at least includes a microprocessor, a non-volatile memory, a power supply, and a real-time timer. The reading and writing of this non-volatile memory is controlled by the microprocessor, and the data written into the non-volatile memory includes the activation time of the projection display, the heat dissipation time of the fan of the projection display, etc., and the real-time timer is uninterrupted. Counts the current time.

The present invention proposes a method that can evenly distribute the writing times of the non-volatile memory, so as to increase the service life of the memory.

For the convenience of description, the writing of the cooling operation time of the fan of the projection display to the memory is described as an embodiment as follows, the operation time interval of setting the writing memory is 1 minute, and 1 hour is only for the same address of the non-volatile memory The memory area is written once.

Please refer to FIG. 2A to FIG. 2F , which are diagrams of data written in each memory area at different times according to a preferred embodiment of the present invention. In FIG. 2A , the number of write times to the non-volatile memory is 0 when the device is turned on. Among the times of writing into the non-volatile memory after 1 minute, there is one writing record in minute byte 1 of the non-volatile memory, and there is no writing record in the remaining minute bytes, as shown in FIG. 2B . After 59 minutes, the number of writes to the non-volatile memory is 1 write record in the memory addresses of minute byte 1 to minute byte 59, as shown in FIG. 2C .

In this embodiment, within the first hour, the number of times of writing in the address of the hour memory area of the non-volatile memory is 0. When it reaches 1 hour, the writing times in the address of the hour memory area is 1 time, as shown in FIG. 2D . At 1 hour and 1 minute, the number of minutes byte 1 written to the non-volatile memory is 2 times, as shown in FIG. 2E . Therefore, according to the above method, the number of times of writing different byte addresses of the non-volatile memory in 3 hours and 2 minutes in FIG. 2F can be obtained.

In a preferred embodiment of the present invention, each specific address memory area mentioned above is written once only to the non-volatile memory within one hour. Therefore, if it is counted by turning on the machine for 8 hours a day, the microprocessor only writes 8 times to the specific address memory area of the non-volatile memory in 1 day, and only writes to the specific address of the non-volatile memory in 1 year (365 days). The memory area is written 2920 times. Assume that, when the write life of the non-volatile memory is 100,000 times, the non-volatile memory can be used for 100000/2920=34.24 years. When the writing life of the non-volatile memory is 1 million times, the non-volatile memory can be used for 1000000/2920=340.24 years.

To sum up the above, the writing method and device of the non-volatile memory of the projection display of the present invention, in view of the large capacity of the current non-volatile memory, so write the data to be written into the non-volatile memory into multiple addresses. In this way, the service life of the non-volatile memory can be extended, and the non-volatile memory includes a common Erasable Programmable Read-Only Memory (Erasable PROM, "EPROM"), an Electrically Erasable Programmable Read-Only Memory (Electrically Erasable PROM, "EEPROM"), or a flash memory (Flash memory) and so on.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, can use the method and technical content disclosed above to make some changes or modifications to equivalent embodiments with equivalent changes, but any content that does not depart from the technical solution of the present invention, Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solutions of the present invention.

Claims (5)

1, a kind of and time related information writes the device of the non-volatility memorizer of electronic installation, it is characterized in that:

Being set with the temporal information of the memory district of at least two group different memory addresses corresponding to a time of day in this non-volatility memorizer, when different time information is written into this storer, is the memory district that is distributed in these different addresses.

2, according to claim 1 and time related information writes the device of the non-volatility memorizer of electronic installation, it is characterized in that wherein said time of day for minute.

3, according to claim 1 and time related information writes the device of the non-volatility memorizer of electronic installation, it is characterized in that wherein said non-volatile note body is the programmable ROM (read-only memory) (EEPROM) of can electrically erasing.

4, a kind of and time related information writes the method for the non-volatility memorizer of electronic installation, it is characterized in that it may further comprise the steps:

The memory district of cutting apart at least one time of day of this non-volatility memorizer is the different addresses of at least two groups;

Storage one is distinguished with information to first memory of this time of day of time correlation; And

Store the second memory district of the information of another and time correlation to this time of day.

5, according to claim 4 and time related information writes the method for the non-volatility memorizer of electronic installation, it is characterized in that wherein said time of day for minute.

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