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CN1037031C - A data acquisition interface of a storage device - Google Patents

A data acquisition interface of a storage device Download PDF

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Publication number
CN1037031C
CN1037031C CN93110972A CN93110972A CN1037031C CN 1037031 C CN1037031 C CN 1037031C CN 93110972 A CN93110972 A CN 93110972A CN 93110972 A CN93110972 A CN 93110972A CN 1037031 C CN1037031 C CN 1037031C
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CN
China
Prior art keywords
interface
data
scsi
storage device
data acquisition
Prior art date
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Expired - Fee Related
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CN93110972A
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Chinese (zh)
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CN1094520A (en
Inventor
周建平
陈小洪
黄晓革
陈宏猷
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University of Electronic Science and Technology of China
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University of Electronic Science and Technology of China
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Priority to CN93110972A priority Critical patent/CN1037031C/en
Publication of CN1094520A publication Critical patent/CN1094520A/en
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Publication of CN1037031C publication Critical patent/CN1037031C/en
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Abstract

本发明存储设备的数据采集接口(SCSI接口)，是涉及数据采集技术。该接口是由微处理器(cpu)、译码电路、控制接口、数据接口、数据时序电路、SCSI存储设备构成。本接口由于取消了原SCSI接口中的微型计算机和SCSI适配器，因此体积小，抗干扰力强，减小了数据流通的中间环节、采集速度快，是一种价格较低、操作简单的大容量磁光盘和SCSI硬盘数据采集系统。

The data acquisition interface (SCSI interface) of the storage device of the present invention relates to data acquisition technology. The interface is composed of a microprocessor (cpu), a decoding circuit, a control interface, a data interface, a data sequence circuit, and a SCSI storage device. This interface cancels the microcomputer and SCSI adapter in the original SCSI interface, so it is small in size, strong in anti-interference, reduces the intermediate link of data circulation, and has a fast acquisition speed. It is a large-capacity device with low price and simple operation. Magneto-optical disk and SCSI hard disk data acquisition system.

Description

A kind of data acquisition interface of memory device
The present invention relates to data acquisition technology.
Used small-size computer data acquisition interface (Small Computer System In-terface is called for short scsi interface), day by day become the standard interface of digital implementation and mass-memory unit, the magneto-optical disk storage systems that particularly has SCSI bus, it is big, easy to carry and do not have advantages such as wearing and tearing to have memory capacity, and become the main memory device of computer system gradually, also be used widely at aspects such as data acquisition, audio-video signal processing.And in the existing magnetic optical disk data acquisition system, be the SCSI memory device to be linked to each other with microcomputer by scsi adapter.Data acquisition channel machine internal memory as calculated arrives SCSI memory device (see figure 1) again to scsi adapter.Like this intermediate link of data circulations many, cause picking rate not high, again because the participation work of computing machine is arranged, thereby scsi interface is cost an arm and a leg, volume is big, be subject to interference, system reliability is not high.
The objective of the invention is to reduce the interference in the work in order to improve picking rate, improve the reliability of system works and the cost that reduces equipment, the spy has carried out new design to the scsi interface circuit.
The present invention realizes by following design proposal, original scsi device includes microcomputer, scsi adapter and SCSI memory device, the present invention is with original microcomputer and scsi adapter, with microprocessor (cpu), decoding scheme, control interface, the circuit that data-interface and data time sequence circuit constitute replaces, and microprocessor (cpu) adopts the single-chip microcomputer (see figure 2).Its groundwork principle is to press the contact of SCSI agreement by microprocessor (cpu) and SCSI memory device, and control data interface and SCSI memory device carry out exchanges data again.Realize the high-speed real-time read/write.As adopt high speed microprocessor (cpu), and also can be with external data reading into the microprocessor (cpu), being encoded writes the SCSI memory device again, passes out to the outside after decoding when reading again, and can add error correction and timing code function like this.Enlarge using value.
The present invention has reduced the volume of equipment owing to adopt single-chip microcomputer to replace computing machine, has reduced cost, factor arrives the SCSI memory device according to only gathering through interface again, has reduced the middle flow link, has accelerated acquisition speed, and reduced interference, thereby improved the reliability of work.The present invention can insert International Business Machines Corporation (IBM) and compatible thereof with the plate form in addition.
Description of drawings:
Fig. 1-prior art scsi device block scheme
Fig. 2-functional-block diagram of the present invention
2 further specify the present invention in conjunction with the accompanying drawings.
Microprocessor (cpu) sends order by control interface to the SCSI memory device, and the state that reads back, information, control and prison show SCSI memory device read/write data, read/write data writes and reads the SCSI memory device via data-interface, the data time sequence circuit produces the control external data source and writes/sense data interface and control data interface and SCSI memory device between swap data.Decoding scheme produces the port control signal of total system.

Claims (2)

1、一种存储设备的数据采集接口，是由微处理器(CPU)、译码电路、控制接口、数据接口和数据时序电路构成，可与带SCSI接口的写读型存储设备组成的数据采集系统，其特征在于该数据采集接口的微处理器(CPU)通过控制接口对存储设备发送命令，并读回状态、信息，控制和监视存储设备读/写数据，数据经由数据接口写入和读出存储设备，数据时序电路产生控制外部数据源写入/读出数据接口以及控制数据接口和存储设备之间交换数据，译码电路产生整个系统的端口控制信号。1. A data acquisition interface of a storage device, which is composed of a microprocessor (CPU), a decoding circuit, a control interface, a data interface and a data timing circuit, and can be used for data acquisition with a write-read storage device with a SCSI interface. The system is characterized in that the microprocessor (CPU) of the data acquisition interface sends commands to the storage device through the control interface, and reads back the status and information, controls and monitors the storage device to read/write data, and the data is written and read via the data interface. out of the storage device, the data timing circuit generates and controls the external data source to write/read the data interface and controls the exchange of data between the data interface and the storage device, and the decoding circuit generates the port control signal of the entire system. 2、根据权利1所要求的数据采集接口，其特征在于微处理器(CPU)是采用单片机。2. According to the required data acquisition interface of claim 1, it is characterized in that the microprocessor (CPU) adopts a single-chip microcomputer.
CN93110972A 1993-04-19 1993-04-19 A data acquisition interface of a storage device Expired - Fee Related CN1037031C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN93110972A CN1037031C (en) 1993-04-19 1993-04-19 A data acquisition interface of a storage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN93110972A CN1037031C (en) 1993-04-19 1993-04-19 A data acquisition interface of a storage device

Publications (2)

Publication Number Publication Date
CN1094520A CN1094520A (en) 1994-11-02
CN1037031C true CN1037031C (en) 1998-01-14

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CN93110972A Expired - Fee Related CN1037031C (en) 1993-04-19 1993-04-19 A data acquisition interface of a storage device

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1094217C (en) * 2000-03-31 2002-11-13 清华同方光盘股份有限公司 Method and system for connecting multiple storage devices under single object equipment
JP4310070B2 (en) * 2002-04-26 2009-08-05 株式会社日立製作所 Storage system operation management method
WO2006129138A1 (en) * 2005-06-03 2006-12-07 Chan Kam-Fu Method of connecting hard disk

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86107958A (en) * 1986-11-14 1988-05-25 四川省地质矿产局成都水文地质工程地质队 Central control, decoding and universal interface instrument for fully automatic rock and soil displacement monitoring
CN88206283U (en) * 1988-06-01 1988-12-21 北京理工大学 Multi-function data collecting converter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86107958A (en) * 1986-11-14 1988-05-25 四川省地质矿产局成都水文地质工程地质队 Central control, decoding and universal interface instrument for fully automatic rock and soil displacement monitoring
CN88206283U (en) * 1988-06-01 1988-12-21 北京理工大学 Multi-function data collecting converter

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