CN111949579A - Device for realizing multi-hard-disk mounting by one-path SATA interface - Google Patents

The invention discloses a device for realizing multi-hard disk mounting by one SATA interface, which comprises a SATA interface circuit, a SATA signal-multi-expansion circuit and a SATA signal control circuit; the interface circuit is respectively connected with an SATA signal one-multiple circuit, an SATA signal control circuit and a low-pressure-difference stabilizer, the SATA signal one-multiple circuit is connected with a first hard disk SATA interface, a second hard disk SATA interface and the SATA signal control circuit, and the SATA interface circuit is connected with the SATA signal control circuit through the low-pressure-difference stabilizer. The invention has the advantages and beneficial effects that: one path of SATA interface is converted into multiple paths of SATA interfaces which can be used selectively, a one-to-many topological structure is realized, and power supply and interface switching of the system to equipment are realized through a control circuit.

Device for realizing multi-hard-disk mounting by one-path SATA interface

Technical Field

The invention belongs to the field of industrial control and the field of computer hardware, and particularly relates to a device for realizing multi-hard-disk mounting by one SATA interface.

Background

SATA interface type, its english name: serial Advanced Technology Attachment. The hard disk using sata (serial ata) port is also called serial hard disk, and is the mainstream of PC storage device. Serial ATA adopts a Serial connection mode, and a Serial ATA bus uses an embedded clock signal, so that the Serial ATA bus has stronger error correction capability, and compared with the prior art, the Serial ATA bus has the greatest difference that transmission instructions (not only data) can be checked, and if errors are found, the transmission instructions can be automatically corrected, so that the reliability of data transmission is improved to a great extent. The serial interface also has the advantages of simple structure and hot plug support.

The SATA hard disk is a mainstream application, the SATA hard disk is used from a past HDD to a current common SSD and part of M.2 used SATA interfaces, and the serial connection belongs to high-speed serial point-to-point dual-channel high-bandwidth transmission, so that strict requirements are imposed on routing, and otherwise, communication problems are likely to occur. And during wiring, the number of via holes is reduced, the phenomenon that the wiring is bent and the bifurcation is forbidden is avoided.

When the storage equipment is used, the situation that the hard disk storage equipment of the SATA interface is damaged sometimes cannot be avoided, so that data loss is caused; in some specific situations, important storage data and common data cannot be stored in one storage device, but only one SATA interface is used, how to mount two or more hard disks by using one SATA interface is realized, and it has become increasingly important to realize backup of data of the hard disks or isolation of important data from non-important data.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a device for realizing the mounting of multiple hard disks by one path of SATA interface.

The technical scheme of the invention is as follows:

a device for realizing multi-hard disk mounting by one path of SATA interface comprises a SATA interface circuit, a SATA signal-multi-expansion circuit and a SATA signal control circuit; the interface circuit is respectively connected with an SATA signal one-multiple circuit, an SATA signal control circuit and a low-pressure-difference stabilizer, the SATA signal one-multiple circuit is connected with a first hard disk SATA interface, a second hard disk SATA interface and the SATA signal control circuit, and the SATA interface circuit is connected with the SATA signal control circuit through the low-pressure-difference stabilizer.

The SATA interface circuit is also connected with the multi-path SATA interface switching power-on circuit.

The multi-path SATA interface switching power-on circuit comprises a Darlington tube and a relay, the SATA interface circuit is connected with the Darlington tube, the Darlington tube is connected with the relay, and the relay is respectively connected with a first hard disk SATA interface and a second hard disk SATA interface.

The invention has the advantages and beneficial effects that:

one path of SATA interface is converted into multiple paths of SATA interfaces which can be used selectively, a one-to-many topological structure is realized, and power supply and interface switching of the system to equipment are realized through a control circuit.

Drawings

Fig. 1 is a circuit structure diagram of a device for implementing multiple hard disk mounts by using one SATA interface according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The SATA interface circuit 1 is also connected with a multi-path SATA interface switching power-on circuit.

SATA interface circuit 1 introduces standard SATA interface signals including power signals, high-speed SATA serial signals, and converts the input power signals to 3.3V and 1.8V through LDO SPX1117 of SIPEX corporation for use by the device.

The present invention has been described in detail with reference to the examples, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.