CN102237125A - Control system for hard disk indication lamp - Google Patents
Control system for hard disk indication lamp Download PDFInfo
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- CN102237125A CN102237125A CN2010101711727A CN201010171172A CN102237125A CN 102237125 A CN102237125 A CN 102237125A CN 2010101711727 A CN2010101711727 A CN 2010101711727A CN 201010171172 A CN201010171172 A CN 201010171172A CN 102237125 A CN102237125 A CN 102237125A
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Abstract
The invention provides a control system for a hard disk indication lamp. The control system comprises a plurality of hard disks, a control unit and a hard disk backboard, wherein the control unit is connected with the hard disks and manages the hard disks; the hard disk backboard is electrically connected with the control unit and the hard disks and comprises a signal processing unit and a plurality of indication lamp groups; the signal processing unit receives a selection signal and hard disk state signals from the control unit so as to determine signal formats of the hard disk state signals according to a voltage level of the selection signal and decodes according to the signal formats of the hard disk state signals so as to output a plurality of indication lamp control signals; the indication lamp groups are connected with the signal processing unit to receive the indication lamp control signals respectively; and the indication lamp groups represent working states of the plurality of hard disks respectively according to luminance of the received indication lamp control signals.
Description
Technical field
The present invention relates to a kind of hard disk pilot lamp control system, and particularly relevant for the hard disk pilot lamp control system with hard disk backboard of supporting multiple signal format.
Background technology
In the design of hard disk backboard, hard disk backboard is connected with the polylith hard disk with a control module (as motherboard) simultaneously via the interface connectivity port on it usually.Hard disk backboard receives the disk state signal that control module sends, and according to corresponding signal format the disk state signal is decoded, and controls the duty of the pairing hard disk of diode displaying on it.
According to above-mentioned, a hard disk backboard is only supported a kind of specific control module usually.When the user need manage hard disk or when expanding with different control modules, hard disk backboard must be changed in the lump could normal operation, to such an extent as to when system upgrade or maintenance, may increase extra cost.In addition, when a hard disk backboard was only supported a kind of signal format, each piece hard disk backboard must could use when meeting the signal format of its support, so can reduce the versatility of hard disk backboard greatly.
Summary of the invention
The invention provides a kind of hard disk pilot lamp control system, its hard disk backboard can be supported the disk state signal of multiple signal format.
The present invention proposes a kind of hard disk pilot lamp control system, and it comprises a plurality of hard disks, control module and hard disk backboard.Control module connects these hard disks, and these hard disks are managed.Hard disk backboard electrically connects control module and these hard disks, and it comprises signal processing unit and a plurality of pilot lamp group.Signal processing unit reception selection signal reaches the disk state signal from control module, with according to the signal format of selecting voltage of signals electrical level judging disk state signal, and decode to export a plurality of pilot lamp control signals according to the signal format of disk state signal.These pilot lamp groups connect signal processing unit, to receive these pilot lamp control signals respectively.And whether luminous these pilot lamp groups are according to the pilot lamp control signal that is received respectively, to represent the duty of a plurality of hard disks respectively.
In one embodiment of this invention, this signal processing unit comprises multiplexer, first decoding unit and second decoding unit.Multiplexer receives selects signal and disk state signal.First decoding unit connects multiplexer, and when the disk state signal is first signal format disk state signal is decoded to export these pilot lamp control signals.Second decoding unit connects multiplexer, and when the disk state signal is the secondary signal form disk state signal is decoded to export these pilot lamp control signals.Wherein, multiplexer transmits first decoding unit with the disk state signal when selecting signal indication disk state signal to be first signal format, multiplexer transmits second decoding unit with the disk state signal when selecting signal indication disk state signal to be the secondary signal form.
In one embodiment of this invention, this signal processing unit also comprises a plurality of isolated locations, and it is connected between multiplexer and first decoding unit and second decoding unit.
In one embodiment of this invention, each isolated location comprises the first transistor, transistor seconds, first resistance, second resistance and the 3rd resistance.First end of the first transistor connects first decoding unit or second decoding unit, and second end of the first transistor connects multiplexer.First end of transistor seconds connects first decoding unit or second decoding unit, and second end of transistor seconds connects multiplexer, and the control end of transistor seconds connects the control end of the first transistor.First resistance is connected between the control end of system voltage and the first transistor.Second resistance is connected between first end of system voltage and the first transistor.The 3rd resistance is connected between first end of system voltage and transistor seconds.
In one embodiment of this invention, this signal processing unit comprises first decoding unit, second decoding unit.First decoding unit receives selects signal and disk state signal, and when selecting signal indication disk state signal to be first signal format disk state signal is decoded to export these pilot lamp control signals.And first decoding unit is output disk state signal when selecting signal indication disk state signal to be the secondary signal form.Second decoding unit connects first decoding unit, in order to receive the disk state signal and the disk state signal is decoded to export these pilot lamp control signals.
In one embodiment of this invention, this first decoding unit and this second decoding unit are able to programmeization system single chip or complex programmable logic device.
In one embodiment of this invention, this disk state signal is a general serial input/output signal or a built-in integrated circuit signal.
In one embodiment of this invention, this selection voltage of signals level is decided by the switch on the hard disk backboard.
In one embodiment of this invention, this hard disk backboard electrically connects control module by cable, and select the voltage of signals level to be decided by the annexation of first output terminal and second output terminal of cable, wherein signal is selected in the first output terminal connected system voltage and output, and second output terminal connects ground voltage.
Based on above-mentioned, in the hard disk pilot lamp control system of the present invention, the signal processing unit of hard disk backboard can be according to the signal format of selecting voltage of signals electrical level judging disk state signal, and decode according to the signal format of disk state signal, whether export a plurality of pilot lamp control signal control lumination of light emitting diode in view of the above, and show the duty of hard disk with this.In view of the above, hard disk pilot lamp control system can be according to disk state signal controlling pilot lamp group, and because hard disk backboard is supported the disk state signal of two kinds of signal formats, transmits so the signal that the disk state signal can utilize hard disk backboard to support is board-like.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and conjunction with figs. is described in detail below.
Description of drawings
Figure 1A is the system block diagrams according to the hard disk pilot lamp control system of one embodiment of the invention;
Figure 1B is the system block diagrams of Figure 1A according to the hard disk backboard of one embodiment of the invention;
Fig. 2 is the circuit diagram of Figure 1B according to the hard disk backboard of one embodiment of the invention;
Fig. 3 A and Fig. 3 B are the circuit diagram that the connectivity port of the hard disk backboard of Fig. 2 connects multiplexer and different cables;
Fig. 4 is the circuit diagram of Figure 1B according to the hard disk backboard of another embodiment of the present invention;
Fig. 5 is the circuit diagram of the isolated location of Fig. 4;
Fig. 6 is the circuit diagram of Figure 1B according to the hard disk backboard of yet another embodiment of the invention.
Main element symbol description in the accompanying drawing:
10-hard disk pilot lamp control system; The 20-control module;
1A, 2A, 3A-input end; 100,200,400,600-hard disk backboard;
110,210,410,610-signal processing unit; The 211-multiplexer;
213,611-first decoding unit; 215,613-second decoding unit;
The 220-connectivity port; 411,413-isolated location;
CB, CB1, CB2-cable; CLK, SCL-pulse signal;
D1～Dn-light emitting diode; DOUT, SDA-data-signal;
E1～E5,1B1,1B2,2B1,2B2,3B1,3B2-output terminal;
HD1～HDn-hard disk; The LOAD-synchronizing signal;
The M1-the first transistor; The M2-transistor seconds;
The RST-reset signal; Rv-resistance;
R1-first resistance; R2-second resistance;
R3-the 3rd resistance; The S-control end;
Ssel-selects signal; Shd-disk state signal;
Slc1～Slcn-pilot lamp control signal; The Vcc-system voltage.
Embodiment
Figure 1A is the system block diagrams according to the hard disk pilot lamp control system of one embodiment of the invention.Please refer to Fig. 1, in the present embodiment, hard disk pilot lamp control system 10 comprises hard disk HD1～HDn, control module 20 and hard disk backboard 100, and wherein control module 20 can be the expansion board on motherboard or the motherboard.And the expansion board of motherboard can host bus adaptor (Host Bus Adapter, HBA) card.
Figure 1B is the system block diagrams of Figure 1A according to the hard disk backboard of one embodiment of the invention.Please refer to Figure 1A and Figure 1B, in the present embodiment, hard disk backboard 100 comprises signal processing unit 110 and a plurality of pilot lamp group (is example with light emitting diode D1～Dn at this).Signal processing unit 110 reception selection signal Ssel reach the disk state signal Shd from control module 20, with the signal format according to the voltage level judgement disk state signal Shd that selects signal Ssel.Wherein, select can being produced by connecting the cable of control module 20 with hard disk backboard 100 of signal Ssel, and select the signal format of the corresponding disk state signal Shd of voltage level meeting of signal Ssel, this is in explanation after a while.In other words, use different cables can produce different selection signals, and can select employed cable, to produce corresponding selection signal by selected cable according to the signal format of disk state signal Shd.And signal processing unit 110 is decoded with output indicator control signal Slc1～Slcn according to the signal format of disk state signal Shd.
The anode tap connected system voltage vcc of light emitting diode D1～Dn, the cathode terminal of light emitting diode D1～Dn connects signal processing unit 110 with difference codan lamp control signal Slc1～Slcn, wherein system voltage can be 3.3 volts or 5 volts, and this is for deciding according to its applied environment.And whether luminous light emitting diode D1～Dn is according to the pilot lamp control signal Slc1～Slcn that is received respectively, to represent the duty of a plurality of hard disks respectively.Wherein, the configuration mode of light emitting diode D1～Dn is in order to explanation, those of ordinary skills can change its configuration mode voluntarily, and pilot lamp control signal Slc1～Slcn is the configuration mode of luminous or non-luminous voltage level meeting respective leds D1～Dn.
Fig. 2 is the circuit diagram of Figure 1B according to the hard disk backboard of one embodiment of the invention.Please refer to Figure 1B and Fig. 2, in the present embodiment, hard disk backboard 200 comprises signal processing unit 210, connectivity port 220 and light emitting diode D1～Dn, and wherein light emitting diode D1～Dn can then repeat no more at this with reference to the explanation of Fig. 1.Signal processing unit 210 comprises multiplexer 211, first decoding unit 213 and second decoding unit 215.Connectivity port 220 is connected to control module 20 by cable CB, and from control module 20 reception disk state signal Shd, and the voltage level of the selection signal Ssel that connectivity port 220 is exported can corresponding disk state signal Shd signal format, i.e. the signal format that the voltage level of the selection signal Ssel that produced of cable CB can corresponding disk state signal Shd.
For instance, be low voltage level (for example ground voltage) when selecting signal Ssel, representing disk state signal Shd is the general serial input/output signal.At this moment, multiplexer 211 can be sent to first decoding unit 213 with disk state signal Shd, with output indicator control signal Slc1～Slcn after by first decoding unit 213 disk state signal Shd being decoded.Wherein, the decoding circuit of first decoding unit, 213 configurable general serial input/output signals is with to being that the disk state signal Shd of general serial input/output signal decodes.
When selecting signal Ssel is high-voltage level (for example system voltage Vcc), and representing disk state signal Shd is the built-in integrated circuit signal.At this moment, multiplexer 211 can be sent to second decoding unit 215 with disk state signal Shd, with output indicator control signal Slc1～Slcn after by second decoding unit 215 disk state signal Shd being decoded.Wherein, the decoding circuit of second decoding unit, 215 configurable built-in integrated circuit signals is with to being that the disk state signal Shd of built-in integrated circuit signal decodes.What deserves to be mentioned is, above-mentioned first decoding unit 213 and second decoding unit 215 can be able to programmeization system single chip (Programmable System-On-Chip, PSoC) or complex programmable logic device (complex programmable logic device, CPLD), this can decide according to those of ordinary skills' design custom, and does not limit the embodiment of the invention with this.
Fig. 3 A and Fig. 3 B are the circuit diagram that the connectivity port of the hard disk backboard of Fig. 2 connects multiplexer and different cables.Please refer to Fig. 3 A, in the present embodiment, multiplexer 211 is to be example with 3257 selector switchs.The output terminal E5 of connectivity port 220 (the output terminal E5 that is equal to cable CB1, i.e. first output terminal) can be by the control end S of resistance R v connected system voltage vcc and multiplexer 211, the output terminal E3 of connectivity port 220 (the output terminal E3 that is equal to cable CB1, i.e. second output terminal) can connect ground voltage, output terminal E1, the E2 of connectivity port 220 and E4 can be connected to input end 1A, the 2A of multiplexer 211 and 3A respectively to transmit disk state signal Shd.
If employed host bus adaptor card is a LSI1068E SAS card, then connectivity port 220 can be connected to the host bus adaptor card by cable CB1.Because LSI1068E SAS cartoon is crossed the general serial I/O and transmitted disk state signal Shd, therefore the disk state signal Shd that is transmitted is the general serial input/output signal.And, can be connected output terminal E5 and its output terminal E3 of connectivity port 220 by the connection line (shown in dotted line BL1) of its joint with the cable CB1 of LSI1068E SAS card connection.At this moment, the selection signal Ssel that output terminal E5 exported of connectivity port 220 can be subjected to cable CB 1 joint connection line influence and be low voltage level, and the output terminal E1 of connectivity port 220 can export the synchronizing signal LOAD of general serial input/output signal, the output terminal E2 of connectivity port 220 can export the data-signal DOUT of general serial input/output signal, and the output terminal E4 of connectivity port 220 can export the pulse signal CLK of general serial input/output signal.
When selecting signal Ssel to be low voltage level, the input end 1A of connectivity port 220 can connect its output terminal 1B1, is sent to first decoding unit 213 with the synchronizing signal LOAD with the general serial input/output signal.And the input end 2A of connectivity port 220 can connect its output terminal 2B 1, is sent to first decoding unit 213 with the data-signal DOUT with the general serial input/output signal.Simultaneously, the input end 3A of connectivity port 220 can connect its output terminal 3B1, is sent to first decoding unit 213 with the pulse signal CLK with the general serial input/output signal.
On the other hand, please refer to Fig. 3 B, if the host bus adaptor card that is connected is a Perc 6i SAS card, then connectivity port 220 can be connected to the host bus adaptor card by cable CB2.Because Perc 6iSAS cartoon is crossed the built-in integrated circuit interface and transmitted disk state signal Shd, therefore the disk state signal Shd that is transmitted is the built-in integrated circuit signal.And, do not have any circuit with the joint of the cable CB2 of Perc 6i SAS card connection, promptly annexation shown in the dashed line free BL1 makes output terminal E5 can not connect output terminal E3.At this moment, the selection signal Ssel that output terminal E5 exported of connectivity port 220 can be subjected to the influence of system voltage Vcc and be high-voltage level, and the output terminal E1 of connectivity port 220 can export the data-signal SDA of built-in integrated circuit signal, the output terminal E2 of connectivity port 220 can export the pulse signal SCL of built-in integrated circuit signal, and the output terminal E4 of connectivity port 220 can export the reset signal RST of built-in integrated circuit signal.
When selecting signal Ssel to be high-voltage level, the input end 1A of connectivity port 220 can connect its output terminal 1B2, is sent to second decoding unit 215 with the data-signal SDA with the built-in integrated circuit signal.And the input end 2A of connectivity port 220 can connect its output terminal 2B2, is sent to second decoding unit 215 with the pulse signal SCL with the built-in integrated circuit signal.Simultaneously, the input end 3A of connectivity port 220 can connect its output terminal 3B2, is sent to second decoding unit 215 with the reset signal RST with the built-in integrated circuit signal.
What deserves to be mentioned is, the voltage level of the selection signal Ssel of the foregoing description is to be decided by the output terminal E3 of employed cable and the annexation of E5, but in other embodiments, select the voltage level of signal Ssel also can utilize the switch that is disposed on the hard disk backboard to decide, wherein switch can be thumb-acting switch or jumper switch, this can understand according to the common knowledge in this area, then repeats no more at this.
Fig. 4 is the circuit diagram of Figure 1B according to the hard disk backboard of another embodiment of the present invention.Please refer to Fig. 2 and Fig. 4, its difference is isolated location 411 and 413.Isolated location 411 is connected between the multiplexer 211 and first decoding unit 213, is the voltage level that is suitable for first decoding unit 213 with the voltage level conversion of disk state signal Shd that multiplexer 211 is transmitted.Isolated location 413 is connected between the multiplexer 211 and second decoding unit 215, is the voltage level that is suitable for second decoding unit 215 with the voltage level conversion of disk state signal Shd that multiplexer 211 is transmitted.
Fig. 5 is the circuit diagram of the isolated location of Fig. 4.Please refer to Fig. 4 and Fig. 5, be example at this with isolated location 411, and the circuit of isolated location 413 can be understood by the explanation of isolated location 411.And the synchronizing signal LOAD of the general serial input/output signal that multiplexer 211 is exported, data-signal DOUT and pulse signal CLK all can be sent to first decoding unit 213 by isolated location 411 changing voltage level.At this isolated location 411 voltage conversion circuit of synchronizing signal LOAD, data-signal DOUT only is shown, but can understands the voltage conversion circuit of pulse signal CLK, so no longer this explains more according to explanation.
Isolated location 411 comprises the first transistor M1, transistor seconds M2, first resistance R 1, second resistance R 2 and the 3rd resistance R 3.The source terminal of the first transistor M1 (i.e. first end) connects first decoding unit 213, and the drain electrode end of the first transistor M1 (i.e. second end) connects multiplexer 211 to receive the synchronizing signal LOAD of general serial input/output signal.The source terminal of transistor seconds M2 connects first decoding unit 213, the drain electrode end of transistor seconds M2 connects multiplexer 211 to receive the data-signal DOUT of general serial input/output signal, and the gate terminal of transistor seconds M2 (being control end) connects the gate terminal of the first transistor M1.First resistance R 1 is connected between the gate terminal of system voltage Vcc and the first transistor M1.Second resistance R 2 is connected between the source terminal of system voltage Vcc and the first transistor M1.The 3rd resistance R 3 is connected between the source terminal of system voltage Vcc and transistor seconds M2.
Fig. 6 is the circuit diagram of Figure 1B according to the hard disk backboard of yet another embodiment of the invention.Please refer to Fig. 2 and Fig. 6, its difference is a signal processing unit 610.In the present embodiment, signal processing unit 610 comprises first decoding unit 611 and second decoding unit 613.First decoding unit 611 receives selects signal Ssel and disk state signal Shd, and when selecting signal Ssel to represent that disk state signal Shd is first signal format (for example general serial input/output signal form) disk state signal Shd is decoded with output indicator control signal Slc1～Slcn.Otherwise first decoding unit 611 is output disk state signal Shd when selecting signal Ssel to represent that disk state signal Shd is secondary signal form (for example built-in integrated circuit signal format).Second decoding unit 613 connects first decoding unit 611, in order to receive disk state signal Shd and disk state signal Shd is decoded with output indicator control signal Slc1～Slcn.
In sum, in the hard disk pilot lamp control system of the embodiment of the invention, the signal processing unit of its hard disk backboard has two decoding units, with when receiving the disk state signal, signal format according to the disk state signal is decoded, whether export a plurality of pilot lamp control signal control lumination of light emitting diode with this, and show the duty of hard disk with this.In view of the above, hard disk pilot lamp control system can be controlled the pilot lamp group according to disk state, and because hard disk backboard is supported the disk state signal of two kinds of signal formats, the signal of support is board-like to be transmitted so the disk state signal can utilize.
Though the present invention discloses as above with embodiment; yet it is not in order to limit the present invention; those of ordinary skill under any in the technical field; without departing from the spirit and scope of the present invention; when doing a little change and retouching, so protection scope of the present invention is as the criterion when looking appended the claim person of defining.
Claims (10)
1. hard disk pilot lamp control system is characterized in that comprising:
A plurality of hard disks;
One control module connects described hard disk, and described hard disk is managed;
One hard disk backboard electrically connects this control module and described hard disk, and this hard disk backboard comprises:
One signal processing unit, reception one selection signal reaches the disk state signal from this control module, selecting the signal format of this disk state signal of voltage of signals electrical level judging according to this, and decode to export a plurality of pilot lamp control signals according to the signal format of this disk state signal; And
A plurality of pilot lamp groups connect this signal processing unit, receive described pilot lamp control signal respectively, and whether luminous described pilot lamp group is according to the pilot lamp control signal that is received respectively, to represent the duty of a plurality of hard disks respectively.
2. hard disk pilot lamp control system according to claim 1 is characterized in that this signal processing unit comprises:
One multiplexer receives this selection signal and this disk state signal;
One first decoding unit connects this multiplexer, and when this disk state signal is one first signal format this disk state signal is decoded to export described pilot lamp control signal; And
One second decoding unit connects this multiplexer, and when this disk state signal is a secondary signal form this disk state signal is decoded to export described pilot lamp control signal;
Wherein, this multiplexer transmits this first decoding unit with this disk state signal when this disk state signal of this selection signal indication is this first signal format, this multiplexer transmits this second decoding unit with this disk state signal when this disk state signal of this selection signal indication is this secondary signal form.
3. hard disk pilot lamp control system according to claim 2 is characterized in that this signal processing unit also comprises a plurality of isolated locations, and it is connected between this multiplexer and this first decoding unit and this second decoding unit.
4. hard disk pilot lamp control system according to claim 3 is characterized in that each described isolated location comprises:
One the first transistor, first end of this first transistor connect this first decoding unit or this second decoding unit, and second end of this first transistor connects this multiplexer;
One transistor seconds, first end of this transistor seconds connect this first decoding unit or this second decoding unit, and second end of this transistor seconds connects this multiplexer, and the control end of this transistor seconds connects the control end of this first transistor;
One first resistance is connected between the control end of a system voltage and this first transistor;
One second resistance is connected between first end of this system voltage and this first transistor; And
One the 3rd resistance is connected between first end of this system voltage and this transistor seconds.
5. hard disk pilot lamp control system according to claim 2 is characterized in that this first decoding unit and this second decoding unit are an able to programmeization system single chip or a complex programmable logic device.
6. hard disk pilot lamp control system according to claim 1 is characterized in that this signal processing unit comprises:
One first decoding unit, receive this selection signal and this disk state signal, and when this disk state signal of this selection signal indication is one first signal format, this disk state signal is decoded to export described pilot lamp control signal, this first decoding unit is exported this disk state signal when this disk state signal of this selection signal indication is a secondary signal form; And
One second decoding unit connects this first decoding unit, in order to receive this disk state signal and this disk state signal is decoded to export described pilot lamp control signal.
7. hard disk pilot lamp control system according to claim 6 is characterized in that this first decoding unit and this second decoding unit are an able to programmeization system single chip or a complex programmable logic device.
8. hard disk pilot lamp control system according to claim 1 is characterized in that this disk state signal is a general serial input/output signal or a built-in integrated circuit signal.
9. hard disk pilot lamp control system according to claim 1 is characterized in that this selection voltage of signals level is decided by the switch on this hard disk backboard.
10. hard disk pilot lamp control system according to claim 1, it is characterized in that this hard disk backboard electrically connects this control module by a cable, and this selection voltage of signals level is decided by one first output terminal of this cable and the annexation of one second output terminal, wherein this first output terminal connects a system voltage and exports this selection signal, and this second output terminal connects a ground voltage.
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| CN2010101711727A CN102237125A (en) | 2010-04-29 | 2010-04-29 | Control system for hard disk indication lamp |
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| CN111338912B (en) * | 2018-12-19 | 2023-03-14 | 佛山市顺德区顺达电脑厂有限公司 | Server system capable of displaying operation state |
| TWI712892B (en) * | 2019-09-09 | 2020-12-11 | 英業達股份有限公司 | Complex programmable logic device and operation method thereof |
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Application publication date: 20111109 |