CN203299740U - CPCI (Compact Peripheral Component Interconnect) computer mainboard with preheating function at low temperature - Google Patents
CPCI (Compact Peripheral Component Interconnect) computer mainboard with preheating function at low temperature Download PDFInfo
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- CN203299740U CN203299740U CN2013202167683U CN201320216768U CN203299740U CN 203299740 U CN203299740 U CN 203299740U CN 2013202167683 U CN2013202167683 U CN 2013202167683U CN 201320216768 U CN201320216768 U CN 201320216768U CN 203299740 U CN203299740 U CN 203299740U
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- programmable logic
- logic device
- cpci
- chipset
- computer mainboard
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Abstract
The utility model provides a CPCI (Compact Peripheral Component Interconnect) computer mainboard with a preheating function at low temperature and belongs to the field of CPCI buses. The CPCI computer mainboard structurally comprises a complex programmable logic device CPLD, a temperature sensor chip and a computer mainboard chipset, wherein the temperature sensor chip is connected to the programmable logic device which is connected to the computer mainboard chipset; the programmable logic device comprises a power source timing sequence control module, a delay module and a chipset reset control module. Compared with the prior art, the CPCI computer mainboard has the characteristics that the design is reasonable, the structure is simple, the using effect is good, and the like, a key chip is pre-heated, and the starting function of the mainboard is realized at low temperature.
Description
Technical field
The utility model relates to the cpci bus field, and specifically a kind of have under low temperature a CPCI computer motherboard that preheats function.
Background technology
The computer motherboard of cpci bus is widely used at industrial control field.Because the computing machine that adopts cpci bus often is deployed in industry spot, field, the rugged surroundings such as vehicle-mounted, carrier-borne, so computer motherboard has higher requirement to low temperature adaptability.In the design of adopting common commercial level chip, computing machine can still can normally be started and continuous firing in the environment below 0 ℃, need to carry out suitable preheating to mainboard.The current function that preheats commonly used is generally to adopt external heating arrangement to complete after the computer motherboard design.
Summary of the invention
The utility model for task be to provide a kind of CPCI computer motherboard, can make mainboard itself have this function that preheats, consume power still less, reduced the cabinet cabling, reliability is higher, the design of the computing machine complete machine of simplifying simultaneously.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of have under low temperature a CPCI computer motherboard that preheats function, comprise programmable logic device (CPLD), temperature sensor chip, computer motherboard chipset, temperature sensor chip is connected to programmable logic device (PLD), programmable logic device (PLD) is connected to the computer motherboard chipset, and programmable logic device (PLD) comprises power supply time-sequence control module, time delay module and the chipset control module that resets.
The method that under low temperature, the CPCI computer motherboard starts is:
(1) temperature detection value of set temperature sensor;
(2) real time temperature of temperature sensor chip detection computations owner board chip group;
(3) when temperature sensor detected real time temperature higher than the temperature detection value that arranges, low level signal of temperature sensor output was to programmable logic device (PLD);
(4) this moment, programmable logic device (PLD) arranged the computer motherboard chipset, and the start reset timing carrys out the electrifying startup computer motherboard according to normally powering on;
(5) real time temperature that detects when temperature sensor is during lower than the temperature detection value that arranges, and high level signal of temperature sensor output is to programmable logic device (PLD);
(6) this moment programmable logic device (PLD) time delay module to the computer chipset reset signal, computer power supply is started, allow computer chipset obtain operating voltage, but do not obtain reset signal, the chipset of this moment is owing to switching on, can send a large amount of heat, make its temperature increase rapidly within very short time;
(7) rise to higher than the temperature detection value that arranges when the computer chipset temperature, temperature sensor sends a low level signal to programmable logic device (PLD);
(8) programmable logic device (PLD) is sent reset signal to computer chip, computer starting.
Temperature sensor described in the utility model is positioned at the PCB opposite side of computer motherboard chipset, and the temperature sensor chip type selecting is LM56, and described low temperature refers to-40 ~ 0 ℃, and described time delay was generally about one minute.
Compared with prior art, the beneficial effect that produces is the utility model:
The utlity model has the characteristics such as reasonable in design, simple in structure, easy to use, function admirable, practicality, adopted programmable logic device (PLD) to control powering on of north bridge and south bridge and reset timing, send the method for reset signal by time delay after the powering on of key chip on computer motherboard, realize the function that preheats of its time delay device, thereby reach the preheating key chip, realize the function of mainboard cold-starting.
Description of drawings
Accompanying drawing 1 is structured flowchart of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail below.
Computer motherboard of the present utility model, comprise programmable logic device (PLD) (CPLD), temperature sensor chip, computer motherboard chipset, temperature sensor chip is connected to programmable logic device (PLD), programmable logic device (PLD) is connected to the computer motherboard chipset, and programmable logic device (PLD) comprises power supply time-sequence control module, time delay module and the chipset control module that resets.
Under low temperature, the starting method step of computer motherboard is:
(1) temperature detection value of set temperature sensor is 0 ℃;
(2) real time temperature of temperature sensor chip detection computations owner board chip group;
(3) when temperature sensor detected real time temperature higher than the temperature detection value (0 ℃) that arranges, low level signal of temperature sensor output was to programmable logic device (PLD);
(4) this moment, programmable logic device (PLD) arranged the computer motherboard chipset, and the start reset timing carrys out the electrifying startup computer motherboard according to normally powering on;
(5) real time temperature that detects when temperature sensor is-15 ℃, and during lower than the temperature detection value that arranges, high level signal of temperature sensor output is to programmable logic device (PLD);
(6) this moment programmable logic device (PLD) time delay module to the computer chipset reset signal, computer power supply is started, allow computer chipset obtain operating voltage, but do not obtain reset signal, the chipset of this moment is owing to switching on, can send a large amount of heat, make its temperature increase rapidly within very short time;
(7) rise to higher than the temperature detection value (0 ℃) that arranges when the computer chipset temperature, temperature sensor sends a low level signal to programmable logic device (PLD);
(8) programmable logic device (PLD) is sent reset signal to computer chip, computer starting.
Except the described technical characterictic of instructions, be those skilled in the art's known technology.
Claims (1)
1. one kind has under low temperature the CPCI computer motherboard that preheats function, it is characterized in that comprising programmable logic device (CPLD), temperature sensor chip, computer motherboard chipset, temperature sensor chip is connected to programmable logic device (PLD), programmable logic device (PLD) is connected to the computer motherboard chipset, and programmable logic device (PLD) comprises power supply time-sequence control module, time delay module and the chipset control module that resets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202167683U CN203299740U (en) | 2013-04-26 | 2013-04-26 | CPCI (Compact Peripheral Component Interconnect) computer mainboard with preheating function at low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202167683U CN203299740U (en) | 2013-04-26 | 2013-04-26 | CPCI (Compact Peripheral Component Interconnect) computer mainboard with preheating function at low temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203299740U true CN203299740U (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202167683U Expired - Fee Related CN203299740U (en) | 2013-04-26 | 2013-04-26 | CPCI (Compact Peripheral Component Interconnect) computer mainboard with preheating function at low temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203299740U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105094172A (en) * | 2015-05-25 | 2015-11-25 | 浪潮集团有限公司 | Method for realizing low temperature starting of equipment in circuit board |
| CN105589490A (en) * | 2015-02-08 | 2016-05-18 | 北京亚太安讯科技有限责任公司 | Embedded operating system low-temperature cold starter |
-
2013
- 2013-04-26 CN CN2013202167683U patent/CN203299740U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105589490A (en) * | 2015-02-08 | 2016-05-18 | 北京亚太安讯科技有限责任公司 | Embedded operating system low-temperature cold starter |
| CN105094172A (en) * | 2015-05-25 | 2015-11-25 | 浪潮集团有限公司 | Method for realizing low temperature starting of equipment in circuit board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20150426 |
|
| EXPY | Termination of patent right or utility model |