CN204613870U - A kind of circuit breaking protective system - Google Patents
A kind of circuit breaking protective system Download PDFInfo
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- CN204613870U CN204613870U CN201520336388.2U CN201520336388U CN204613870U CN 204613870 U CN204613870 U CN 204613870U CN 201520336388 U CN201520336388 U CN 201520336388U CN 204613870 U CN204613870 U CN 204613870U
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Abstract
The utility model discloses a kind of circuit breaking protective system; comprise AC/DC circuit, power failure protection module, built-in PC, driver module and display module; AC220V is converted to 12V direct current and powers to power failure protection module, driver module and display module respectively by AC/DC change-over circuit, and power failure protection module comprises outage detection module, lithium battery module, primary controller MCU and electrical source exchange control module.This practical circuit breaking protective system only need change built-in PC power supply mode and just can realize, during power-off by built-in PC power switching to reserve battery, control built-in PC shutdown after cut off the electricity supply again, play energy-conservation and protective effect, implement simple and flexible.
Description
Technical field
The utility model relates to a kind of protection system, specifically a kind of circuit breaking protective system.
Background technology
Along with informationization, the development of intellectuality and networking, information issuing system is in bank, hospital, traffic, market, hotel, the various public place such as hotel is widely applied, the information issuing system of Based PC platform, multiple audio frequency and video formatted file can be supported, there is processing speed fast, hard disk mass memory, integrated level is high, functional interface enriches, the features such as convenient expansion, but, there is labile factor in the power supply of public place, accident power-off can cause system current data to lose, even hard disk can be damaged, cause system crash, and dispersion is often compared in the installation site of information issuing system, if system failure, need a large amount of manpowers to safeguard.Therefore, need the power-off protection method finding a kind of applicable system application, make system can complete normal process when power-off, improve the stability of system cloud gray model.
Traditional ups power, its price is more expensive, volume is larger, cannot be embedded in information issuing system, prior art is generally adopted and is solved in two ways, one is the fast read/write characteristics utilizing non-volatile NVRAM chip, data and status information is write in NVRAM fast time delay in power down, then recovers data by reading NVRAM when powering on, this method cannot avoid power-off to the damage of hard disk, and power down is difficult to control flexibly time delay; Two is change the decoding scheme of PC and the power supply of memory RAM circuit, and it is comparatively large that this method realizes difficulty, and cost is higher.
Utility model content
The purpose of this utility model is to provide a kind of circuit breaking protective system for information issuing system, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of circuit breaking protective system, comprise AC/DC circuit, power failure protection module, built-in PC, driver module and display module, AC220V is converted to 12V direct current respectively to power failure protection module by described AC/DC change-over circuit, driver module and display module are powered, power failure protection module comprises outage detection module, lithium battery module, primary controller MCU and electrical source exchange control module, outage detection module by DET1 and DET2 signal transmission to main control MCU, described lithium battery module provides 12V direct current to electrical source exchange control module, electrical source exchange control module is powered to main control MCU after the 12V direct current provided by lithium battery module is converted to 5V direct current, main control MCU by SW1 signal transmission to electrical source exchange control module, electrical source exchange control module in described power failure protection module provides 12V direct current supply to built-in PC, in power failure protection module, ON/OFF signal transmission is received the DETECT signal of built-in PC to built-in PC by main control MCU, built-in PC also connects internal memory respectively, hard disk, network interface, USB interface, serial ports and driver module, driver module also connects display module.
As further program of the utility model: described display module adopts LCD display.
As further program of the utility model: the VGA format-pattern that described built-in PC exports is converted to through driver module and delivers to display module after LVDS interface signal and carry out image display.
As the utility model further scheme: described main control MCU adopts STC15F100.
Compared with prior art; the beneficial effects of the utility model are: this practical circuit breaking protective system only need change built-in PC power supply mode and just can realize; during power-off by built-in PC power switching to reserve battery; cut off the electricity supply again after controlling built-in PC shutdown; play energy-conservation and protective effect, implement simple and flexible.
Accompanying drawing explanation
Fig. 1 is the schematic block circuit diagram of circuit breaking protective system;
Fig. 2 is the schematic block circuit diagram of power failure protection module in circuit breaking protective system.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 ~ 2, in the utility model embodiment, a kind of circuit breaking protective system, comprise AC/DC circuit, power failure protection module, built-in PC, driver module and display module, AC220V is converted to 12V direct current respectively to power failure protection module by AC/DC change-over circuit, driver module and display module are powered, power failure protection module comprises outage detection module, lithium battery module, primary controller MCU and electrical source exchange control module, outage detection module by DET1 and DET2 signal transmission to main control MCU, lithium battery module provides 12V direct current to electrical source exchange control module, electrical source exchange control module is powered to main control MCU after the 12V direct current provided by lithium battery module is converted to 5V direct current, main control MCU by SW1 signal transmission to electrical source exchange control module, electrical source exchange control module in power failure protection module provides 12V direct current supply to built-in PC, in power failure protection module, ON/OFF signal transmission is received the DETECT signal of built-in PC to built-in PC by main control MCU, built-in PC also connects internal memory respectively, hard disk, network interface, USB interface, serial ports and driver module, driver module also connects display module.
Display module adopts LCD display.
The VGA format-pattern that built-in PC exports is converted to through driver module and delivers to display module after LVDS interface signal and carry out image display.
Main control MCU adopts STC15F100.
Principle of work of the present utility model is: refer to Fig. 1 ~ 2, and when system power supply is normal, built-in PC, by 12V powered by direct current, can be set to the Auto Power On that powers on; When external power source breaks, master controller MCU can detect the lower saltus step of DET1, enters interruption, and exporting SW1 signal is high level, is switched to lithium battery power supply.For the false triggering avoiding power-supply fluctuation to cause DET1 to produce, whether the condition adjudgement power supply in conjunction with DET2 disconnects, and then provide off signal ON/OFF, built-in PC completes when shutting down after pre-treatment, its DETECT signal is by high step-down, master controller MCU learns that built-in PC shuts down after DETECT signal step-down being detected, then by SW1 signal output low level, shutdown system; During system cut-off; outage detection module produces detection signal DET1 and DET2; electrical source exchange exports to lithium battery module by master controller MCU in time; then shutdown command ON/OFF is sent to built-in PC; built-in PC completes when shutting down after pre-treatment; master controller MCU can detect DETECT state transition, and then cuts off load, and protection lithium battery module exports.
Claims (4)
1. a circuit breaking protective system, comprise AC/DC circuit, power failure protection module, built-in PC, driver module and display module, it is characterized in that, AC220V is converted to 12V direct current respectively to power failure protection module by described AC/DC change-over circuit, driver module and display module are powered, power failure protection module comprises outage detection module, lithium battery module, primary controller MCU and electrical source exchange control module, outage detection module by DET1 and DET2 signal transmission to main control MCU, described lithium battery module provides 12V direct current to electrical source exchange control module, electrical source exchange control module is powered to main control MCU after the 12V direct current provided by lithium battery module is converted to 5V direct current, main control MCU by SW1 signal transmission to electrical source exchange control module, electrical source exchange control module in described power failure protection module provides 12V direct current supply to built-in PC, in power failure protection module, ON/OFF signal transmission is received the DETECT signal of built-in PC to built-in PC by main control MCU, built-in PC also connects internal memory respectively, hard disk, network interface, USB interface, serial ports and driver module, driver module also connects display module.
2. circuit breaking protective system according to claim 1, is characterized in that, described display module adopts LCD display.
3. circuit breaking protective system according to claim 1, is characterized in that, the VGA format-pattern that described built-in PC exports is converted to through driver module and delivers to display module after LVDS interface signal and carry out image display.
4. circuit breaking protective system according to claim 1, is characterized in that, described main control MCU adopts STC15F100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520336388.2U CN204613870U (en) | 2015-05-23 | 2015-05-23 | A kind of circuit breaking protective system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520336388.2U CN204613870U (en) | 2015-05-23 | 2015-05-23 | A kind of circuit breaking protective system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204613870U true CN204613870U (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201520336388.2U Expired - Fee Related CN204613870U (en) | 2015-05-23 | 2015-05-23 | A kind of circuit breaking protective system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204613870U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109995130A (en) * | 2017-12-31 | 2019-07-09 | 安徽科硕智谷信息科技有限公司 | A kind of power-off monitoring device and power-off monitoring method |
| CN110873512A (en) * | 2019-12-14 | 2020-03-10 | 冰山松洋生物科技(大连)有限公司 | Refrigerator control circuit with power-off protection function |
| CN111681606A (en) * | 2020-07-22 | 2020-09-18 | 宁波视睿迪光电有限公司 | Protection control power supply, OLED screen control system and OLED screen |
-
2015
- 2015-05-23 CN CN201520336388.2U patent/CN204613870U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109995130A (en) * | 2017-12-31 | 2019-07-09 | 安徽科硕智谷信息科技有限公司 | A kind of power-off monitoring device and power-off monitoring method |
| CN110873512A (en) * | 2019-12-14 | 2020-03-10 | 冰山松洋生物科技(大连)有限公司 | Refrigerator control circuit with power-off protection function |
| CN111681606A (en) * | 2020-07-22 | 2020-09-18 | 宁波视睿迪光电有限公司 | Protection control power supply, OLED screen control system and OLED screen |
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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: 20150902 Termination date: 20170523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |