Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Storage device of large capacity nonvolatibitity alarming data

A data storage device, non-volatile technology, applied in the direction of digital memory information, alarm, information storage, etc., can solve the problems of multiple writing, affecting life and reliability, small capacity, etc., to reduce the number of writing , improve the service life, the effect of simple structure

Inactive Publication Date: 2006-06-28
BEIJING HANGTIAN YUSHENG SCI & TECH
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the alarm data of the fire protection system generally has the characteristics of suddenness, discontinuity, and small amount of single alarm data, and in order to facilitate analysis and statistics, there are also requirements for the capacity of storing alarm history data. However, in the above three storage methods Among them, non-volatile RAM has the characteristics of fast writing speed and no limit on the number of write times, but the disadvantage is that the capacity is relatively small; while FLASH has the characteristics of large capacity, but it adopts a paging structure and has a limit on the number of write times , the length of each page of data is much larger than the length of a single alarm data in the alarm system, direct use will cause the entire page of alarm data to be written multiple times, affecting life and reliability; in addition, although EEPROM can be written in bytes, but There is also a limit on the number of writes, and the capacity is small
Therefore, any one of the above three storage methods alone cannot meet the requirements for storing alarm history data

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Storage device of large capacity nonvolatibitity alarming data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] like figure 1 Shown, the large-capacity nonvolatile alarm data storage device of the present invention mainly comprises following structure: U1 is microcontroller P89LPC932 (PHILIPS company LPC900 series MCS51 microcontroller, also can adopt other companies to contain I 2 C and standard TTL232 serial port interface microcontroller), U2 is a non-volatile RAM memory (RAMTRON’s serial ferroelectric RAM, FM24CL series), U3 is a FLASH memory (ATMEL’s serial DATAFLASH, AT45DB series) , U4 is a CMOS low-power linear regulator (TOREX's high-speed linear regulator XC6204 series). Interface J1 is the interface between this device and other devices, including power supply, standard TTL232 serial port and working status indicator port of this device. Pin 1 of interface J1 is the input terminal of positive power supply and receives +5 volts; pin 5 of interface J1 is grounded ;Pin 2 of the interface J1 indicates the working status of the device. It is usually set to a low level, and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

This invention relates to a large volume nonvolatile alarm data storage device including a microcontroller, a nonvolatile RAM storage, a FLASH storage, a CMOS low power loss linear regulator and an interface, in which, the FLASH storage and the nonvolatile RAM storage are combined to store the alarm data, the microcontroller controls the read and write of the two storages and receives the alarm data via the serial interface or receives instructions to output the alarm historical records advantaged that the FLASH is taken as the primary storage to store large volumes of historical data and the nonvolatile RAM storage is used to buffer alarm data without limit of writing times to reduce the writing times of the FLASH storage and increase the life time of the device.

Description

technical field [0001] The invention belongs to the field of fire protection and relates to a large-capacity non-volatile alarm data storage device. Background technique [0002] At present, there are mainly three methods for non-volatile storage of data using integrated circuit technology: non-volatile RAM, FLASH and EEPROM. Since the alarm data of the fire protection system generally has the characteristics of suddenness, discontinuity, and small amount of single alarm data, and in order to facilitate analysis and statistics, there are also requirements for the capacity of storing alarm history data. However, in the above three storage methods Among them, non-volatile RAM has the characteristics of fast writing speed and no limit on the number of write times, but the disadvantage is that the capacity is relatively small; while FLASH has the characteristics of large capacity, but it adopts a paging structure and has a limit on the number of write times , the length of each...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/00G06F13/00G08B17/00G11C7/00
Inventor 孙朝晖
Owner BEIJING HANGTIAN YUSHENG SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com