CN100419632C - Wiring control method and device for switching sensed object - Google Patents
Wiring control method and device for switching sensed object Download PDFInfo
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- CN100419632C CN100419632C CNB2003101119753A CN200310111975A CN100419632C CN 100419632 C CN100419632 C CN 100419632C CN B2003101119753 A CNB2003101119753 A CN B2003101119753A CN 200310111975 A CN200310111975 A CN 200310111975A CN 100419632 C CN100419632 C CN 100419632C
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- sensed object
- sensed
- sensing switch
- sensitive information
- line
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Abstract
The present invention relates to a wiring control device for switching sensed objects, which can switch a plurality of sensed objects. The device comprises a main control board and an auxiliary control board, wherein the main control board can receive and store sensed information from the sensed objects; the auxiliary control board is connected with the main control board by a sensed wire and a control wire and is connected with the sensed objects by sensed wires; the present invention is used for receiving the sensed information from the sensed objects; the auxiliary control board comprises a control circuit with a counter, and a switching circuit with a data selector. Adopting the device and the method of the present invention can obtain the sense of the sensed objects conveniently, and reduces sensed lines connected to the main control board obviously.
Description
[technical field]
The present invention relates to a kind of sensing wiring control method and device, relate in particular to a kind of wiring control method and device of changeable sensed object.
[background technology]
In highly integrated electronic equipment, heat radiation is an important problem, if heat dissipating state is bad, causes temperature too high, may cause the damage of electronic equipment.Show important for thermal component (as radiator fan) monitoring is outstanding.The IC that some can the sensing rotation speed of the fan has appearred in industry, and it can monitor whether regular event of fan by related software, and mostly there is the design of sensing rotation speed of the fan in present system.Open as State Intellectual Property Office of the People's Republic of China on August 9th, 2000, publication number is CN1262465A, name is called the patent of " rotation speed monitor of cooling fan ", it has disclosed a kind of rotation speed monitor of cooling fan, be installed on the power circuit of radiator fan motor, revolution pulse wave with the output monitoring, this device is provided with a resistance on the power ground circuit of motor, this resistance is connected with a diode, this diode is connected with a capacitor, this capacitor is connected with the input end of a comparer, and when motor moved, the momentary pulse electric current that this motor sucks produced pulse voltage by resistance, this pulse voltage is in diode and capacitor input comparator, thereby export a frequency pulse wave by comparator output terminal,, get final product the rotating speed of direct monitoring motor according to the frequency change of this frequency pulse wave.
But in some systems, it may be used plurality of fans and keep the stable of system temperature, also need these fans are detected, as shown in Figure 1, be a kind of traditional settling mode, it is directly connected to used fan (sensed object) 1 in the system in the master control board 2 by sense wire 3, and like this, master control board 2 just can be known the rotary speed information of fan.But, there is following shortcoming in this kind design, promptly, when number of fans increased, then the circuit in the master control board also can correspondingly increase, when number of fans is increased to certain value, in the configuration design of master control board 2, can cause no small problem, along with the increase of circuit, can only solve by area that increases master control board 2 or the distance that reduces between circuit, and line pitch from reduce to make to disturb thereupon between its circuit and increase.In addition, be connected increasing of circuit in the master control board, also can hinder flowing of wind and influence radiating effect.And master control board 2 is equipped with very important assembly usually, as chips such as CPU, so the influence that appearance brought of the problems referred to above may be more serious.
So a kind of method or device need be provided, but the rotary speed information of its sensing plurality of fans, the various disappearances that produce but the while can be avoided the increase of circuit in the master control board.
[summary of the invention]
Technical matters to be solved by this invention is to provide a kind of rotating speed that can be used to the sensing plurality of fans, and can reduce the apparatus and method that are connected to the circuit in the master control board.
The invention provides a kind of wiring control device of sensing switch object, its changeable several sensing object, this device includes: a master control board can receive and store the sensitive information from sensed object; One from control panel, should interrelate by sense wire and control line and master control board from control panel, and link to each other with sensed object by sense wire, sense wire is used to receive the sensitive information of sensed object, should comprise that a control circuit and with counter had the commutation circuit of data selector from control panel, wherein: the data output that control circuit comes the control counter output terminal by aforesaid control line, this counter output links to each other with the channel selection wire of data selector; And the data input end of data selector links to each other with the sense wire of each sensed object in the commutation circuit, can be according to the difference of data on the channel selection wire of data selector, selection is exported the sensitive information of particular profile input end by its data output terminal, send master control board to by sense wire.
The present invention also provides a kind of wiring control method of using described wiring control device to come the sensing switch object.It comprises the steps: (a) activation (Enable) reset signal line, makes commutation circuit that sense line is online on first sensed object; (b) decapacitation (Disable) reset signal line can correctly switch commutation circuit; (c) judge whether this selected sensed object is correct sensed object; (d) if this selected sensed object is not correct sensed object, the activation line switching signal connects on next sensed object sense line, the decapacitation line switching signal, and go to step (c); (e) if this selected sensed object is correct sensed object, with the sensitive information of this sensed object, the data output terminal of mat data selector sends master control board to.
The wiring control method of sensing switch object provided by the invention comprises also that wherein activation presets the address, makes commutation circuit with the online step on a certain default sensed object of sense line.
The wiring control method of sensing switch object provided by the invention comprises also that wherein master control board is stored in the sensitive information of received sensed object the step of internal memory fixed position.
Adopt device and method provided by the invention, can obtain the sensitive information of several sensing object easily, and the sense line that is connected in the master control board also obviously reduces.
[description of drawings]
Fig. 1 is existing wiring control method.
Fig. 2 is a wiring control method synoptic diagram of the present invention.
Fig. 3 is the online synoptic diagram of the present invention.
Fig. 4 is the wiring control method process flow diagram of sensing switch object of the present invention.
[primary clustering explanation]
Sensed object 1 master control board 2
[embodiment]
As shown in Figure 2, be wiring control method synoptic diagram of the present invention.In solution provided by the present invention, between master control board 2 and sensed object 1, increase by one from control panel 4.Sensed object 1 by sense wire 3 directly be connected from control panel, and be connected with control line 5 by sense wire 3 with master control board 2 from control panel 4, like this, be connected that circuit obviously reduces in the master control board 2, have only a pair of sense wire and pair of control line 5.Can receive the sensitive information of sensed object by sense wire 3 from control panel, and can send these sensitive informations to master control board 2 via sense wire, wherein control line 5 may command are from control panel 4, make it to switch corresponding sensing object 1, make sensitive information that master control board 2 obtained sensitive information for this selected sensed object 1.Because generally, just need to upgrade once, so can gather the sensitive information of different sensed object, thereby finish monitoring by switching to all sensed object every a period of time (as 1 second) for the sensitive information of a certain sensed object.In the present invention, sensed object wherein is meant fan, and sensitive information is meant the rotary speed information of fan, but is not limited thereto, and other sensed object and sensitive information (as temperature information etc.) also can use the present invention.
As shown in Figure 3, be the online synoptic diagram of the present invention.In the present embodiment, suppose to have 16 sensed object (fan) 1, i.e. fan
0, fan
1～fan
15And two sense wires are arranged on each sensed object, can transmit the sensitive information of the sensed object of being gathered on the sense wire by sensing apparatus (, not drawing) as sensing IC, the concrete number of sensed object is not a flesh and blood of the present invention, and above-mentioned number is only by being adopted in the present embodiment.
Include a control circuit 41 and from control panel 4 and switch circuit 42.Wherein, control circuit 41 includes a counter, adopts one 4 digit counters (74163) in the present embodiment.This counter links to each other with two control lines, and one is the replacement signal wire, and one is line switching signal, these two control lines are connected with master control board 2 simultaneously, in one embodiment of this invention, one first end of single-chip connects line switching signal in the master control board, and one second end connects the reset signal line.Can come activation or decapacitation replacement line switching signal and reset signal line by the height of controlling the accurate position of first end and second end.Activation reset signal line can make the output terminal Q of this counter
0Q
1Q
2Q
3Value is " 0000 "; Decapacitation reset signal line, and activation line switching signal, then counter is counted, Q
0Q
1Q
2Q
3Value then can change between " 0000 "～" 1111 ".
To select a data selector (Data Selector) and commutation circuit 42 includes two 16, in order distinguishing, to be referred to as respectively " data selector switch A " and " data selector switch B ", this two data selector switch all has 16 data input end D
0D
1D
2D
3... D
15, 4 channel selecting side S
0S
1S
2S
3And data output terminal Y.
The annexation of above-mentioned parts as shown in Figure 3, wherein, the output terminal Q of counter
0Q
1Q
2Q
3Respectively with the channel selecting side S of data selector A and data selector B
0S
1S
2S
3Be connected; And two sense wires of fan link to each other with each data input end of data selector switch A and data selector switch B respectively, i.e. fan
0Two sense wires respectively with the D of data selector switch A
0The D of end and data selector switch B
0End links to each other, fan
1Two sense wires respectively with the D of data selector switch A
1The D of end and data selector switch B
1End links to each other, and the rest may be inferred, until fan
15And the data output terminal Y of data selector switch A and B is connected with master control board 2 by sense wire A and sense wire B.
As everyone knows, utilize the variation of the value of channel selecting side, can make the data output terminal of data selector export the data of a certain data input end.So, promptly can control the work of commutation circuit 42 according to the variation of the data of control circuit 41 output.Be S
0S
1S
2S
3Value can be along with Q
0Q
1Q
2Q
3Value and change.For instance, work as Q
0Q
1Q
2Q
3Value when being " 0000 ", the S of data selector switch A and B
0S
1S
2S
3Value also be " 0000 " simultaneously, then the data output terminal Y of data selector switch A and B can export the data on its a certain data input end, that suppose to export this moment is data input end D
0Data, what then obtained on sense wire A and the B is fan
0Sensitive information; In like manner, work as Q
0Q
1Q
2Q
3Value when being " 0001 ", what then obtained on sense wire A and the B is fan
1Sensitive information; The rest may be inferred.So, utilizing control circuit 41 and commutation circuit 42, master control board 2 can obtain the sensitive information of different fans.Concrete S
0S
1S
2S
3The corresponding relation of value and concrete input end D and the type of data selector switch relevant, it is not a flesh and blood of the present invention.The annexation of the sense wire that in the present invention, can be by changing fan and the data input end of data selector switch changes the transfer sequence of commutation circuit.Generally after completing from control panel, its transfer sequence promptly has been fixed.
Simultaneously, also can preset address setting in counter, it is in order to allow master control board 2 can obtain the sensitive information of a certain specific fan.For example, default address is made as 0001, when the default address of activation, Q then
0Q
1Q
2Q
3Value be " 0001 ", then master control board 2 can be obtained fan
2Rotary speed information.
As shown in Figure 4, be the wiring control method process flow diagram of sensing switch object of the present invention.In the beginning step, according to the number of sensed object, select corresponding counter and data selector switch, and connect by above-mentioned Fig. 3.In step S410, activation reset signal line makes commutation circuit that sense line is online on first sensed object; Perhaps the default address of activation makes commutation circuit that sense line is online on a certain default sensed object.In step S420, decapacitation reset signal line can correctly switch commutation circuit.In step S430, judge whether this selected sensed object is correct sensed object.If this selected sensed object is not correct sensed object, then carry out step S440, the activation line switching signal connects on next sensed object sense line, and carries out step S450, and the decapacitation line switching signal transfers back to step S430 then.If this selected sensed object is correct sensed object, then carry out step S460, with the sensitive information of this sensed object, send in the master control board by the output terminal of data selector switch, master control board is stored in fixed position in the internal memory with received sensitive information.According to the sensitive information in the internal memory, judge whether this sensed object is operate as normal.
Claims (15)
1. the wiring control device of a sensing switch object, its changeable several sensing object is characterized in that including:
One master control board can receive and store the sensitive information from sensed object;
One from control panel, should link to each other with master control board by sense wire and control line from control panel, and link to each other with sensed object, be used to receive the sensitive information of sensed object by sense wire, should comprise that a control circuit and with counter had the commutation circuit of data selector from control panel, wherein:
The data output that control circuit comes the control counter output terminal by activation or the aforesaid control line of decapacitation, this counter output links to each other with the channel selection wire of data selector;
And the data input end of data selector links to each other with the sense wire of each sensed object in the commutation circuit, can be by the difference of data on the channel selection wire of data selector, selection is exported the sensitive information of particular profile input end by its data output terminal, send master control board to by sense wire.
2. the wiring control device of sensing switch object as claimed in claim 1 is characterized in that this sensed object is a fan.
3. the wiring control device of sensing switch object as claimed in claim 2 is characterized in that this sensitive information is the rotary speed information of fan.
4. the wiring control device of sensing switch object as claimed in claim 1 is characterized in that this sensitive information is gathered by a sensing apparatus.
5. the wiring control device of sensing switch object as claimed in claim 4 is characterized in that this counter is one 4 digit counters.
6. the wiring control device of sensing switch object as claimed in claim 5 is characterized in that this counter is one 4 presettable counters.
7. the wiring control device of sensing switch object as claimed in claim 6 is characterized in that this data selector is 16 to select a data selector switch.
8. the wiring control device of sensing switch object as claimed in claim 1 is characterized in that this control line is replacement signal wire and line switching signal.
9. the wiring control device of sensing switch object as claimed in claim 8 is characterized in that this reset signal line can make from control panel output one about the fixing sensitive information of sensed object.
10. the wiring control device of sensing switch object as claimed in claim 9 is characterized in that this line switching signal can make the sensitive information of exporting different sensed object from control panel.
11. a wiring control method of using the described wiring control device of claim 1 to come the sensing switch object can be used for switching the several sensing object, it is characterized in that this method includes following steps:
(a) activation reset signal line makes commutation circuit that sense line is online on first sensed object;
(b) decapacitation reset signal line can correctly switch commutation circuit;
(c) judge whether this selected sensed object is correct sensed object;
(d) if this selected sensed object is not correct sensed object, the activation line switching signal connects on next sensed object sense line, the decapacitation line switching signal, and go to step (c);
(e) if this selected sensed object is correct sensed object, with the sensitive information of this sensed object, the data output terminal by data selector sends master control board to.
12. the wiring control method of sensing switch object as claimed in claim 11 is characterized in that this sensed object is a fan.
13. ground wiring control method in sensing switch object ground as claimed in claim 12 is characterized in that this sensitive information is the rotary speed information of fan.
14. the wiring control method of sensing switch object as claimed in claim 11 is characterized in that also comprising that activation presets the address, makes commutation circuit with the online step on a certain default sensed object of sense line.
15. the wiring control method of sensing switch object as claimed in claim 11 is characterized in that also comprising that master control board is stored in the sensitive information of received sensed object the step of internal memory fixed position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101119753A CN100419632C (en) | 2003-10-27 | 2003-10-27 | Wiring control method and device for switching sensed object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101119753A CN100419632C (en) | 2003-10-27 | 2003-10-27 | Wiring control method and device for switching sensed object |
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| Publication Number | Publication Date |
|---|---|
| CN1611947A CN1611947A (en) | 2005-05-04 |
| CN100419632C true CN100419632C (en) | 2008-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101119753A Expired - Fee Related CN100419632C (en) | 2003-10-27 | 2003-10-27 | Wiring control method and device for switching sensed object |
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| Country | Link |
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| CN (1) | CN100419632C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103019342B (en) * | 2012-12-12 | 2016-11-23 | 曙光信息产业股份有限公司 | Server system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07287625A (en) * | 1994-04-18 | 1995-10-31 | Fujitsu Ltd | Device with cooling fan and fan controlling method |
| JPH0830357A (en) * | 1994-07-20 | 1996-02-02 | Nec Gumma Ltd | Control system for fan for cooling |
| US5913068A (en) * | 1995-11-14 | 1999-06-15 | Kabushiki Kaisha Toshiba | Multi-processor power saving system which dynamically detects the necessity of a power saving operation to control the parallel degree of a plurality of processors |
| US6247898B1 (en) * | 1997-05-13 | 2001-06-19 | Micron Electronics, Inc. | Computer fan speed control system |
-
2003
- 2003-10-27 CN CNB2003101119753A patent/CN100419632C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07287625A (en) * | 1994-04-18 | 1995-10-31 | Fujitsu Ltd | Device with cooling fan and fan controlling method |
| JPH0830357A (en) * | 1994-07-20 | 1996-02-02 | Nec Gumma Ltd | Control system for fan for cooling |
| US5913068A (en) * | 1995-11-14 | 1999-06-15 | Kabushiki Kaisha Toshiba | Multi-processor power saving system which dynamically detects the necessity of a power saving operation to control the parallel degree of a plurality of processors |
| US6247898B1 (en) * | 1997-05-13 | 2001-06-19 | Micron Electronics, Inc. | Computer fan speed control system |
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| CN1611947A (en) | 2005-05-04 |
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