CN203552244U - Hardware watchdog device for computer and software system - Google Patents
Hardware watchdog device for computer and software system Download PDFInfo
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- CN203552244U CN203552244U CN201320698669.3U CN201320698669U CN203552244U CN 203552244 U CN203552244 U CN 203552244U CN 201320698669 U CN201320698669 U CN 201320698669U CN 203552244 U CN203552244 U CN 203552244U
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Abstract
The utility model relates to a hardware watchdog device for a computer and a software system. The watchdog device comprises a power source module, a controller, a USB detection and communication module, and a starting and restarting driving module. The power source module comprises an outside 9V/1A direct current power source and an AMS1117-5V voltage-stabilized power source module. The controller is an STC 89C52 single chip microcomputer. The USB detection and communication module comprises a module for detecting whether a USB is electrified and a USB to RS232PL2303HX. The starting and restarting driving module comprises a TLP521-2 photocoupling isolator and two SRD-5VDC relays. The hardware watchdog device can prevent breakdown of an industrial control host and an industrial control monitoring system and data loss in an unattended site, and the stability and the reliability of operation are guaranteed.
Description
Technical field
The utility model belongs to industrial automation, particularly a kind of hardware watchdog device for computing machine and software systems.
Background technology
Hardware watchdog device is the important component part of Industry Control.Industry Control monitoring system is progressively to unmanned, intelligent development now, and most of Industry Control monitoring system all realizes on industrial computer or microcomputer, so, the reliability of industrial computer and the operation of Industry Control monitoring system must guarantee.According to the utility model patent of the relevant hardware watchdog retrieving in State Intellectual Property Office website, there are following two: 1. hardware watchdog protection device, publication number CN201477502U; 2. a hardware watchdog circuit, publication number CN201698402U.Disclosed patent is carried out to technical Analysis to be drawn: current hardware watchdog product is not also suitable for present Industry Control monitoring system.So the problem facing is that the stability of moving for the control monitoring of software in unmanned situation cannot guarantee.At unattended Industry Control scene, need a kind of hardware watchdog device of outside, industry spot main frame and Industry Control monitoring system are carried out to timing nurse, prevent fault and obliterated data, guarantee the reliability of its operation.
Summary of the invention
For overcoming above-mentioned defect, the technical problems to be solved in the utility model is to provide a kind of hardware watchdog device for computing machine and software systems.This watchdog device can prevent Industry Control main frame and Industry Control faults of monitoring system and obliterated data in unattended industry spot, guarantees the reliability of its operation.
For a hardware watchdog device for computing machine and software systems, this watchdog device comprises: power module, controller, USB detection and communication module and startup and restart driver module; Described power module comprises outside 9V/1A direct supply and AMS1117-5V power module of voltage regulation; Described controller is STC89C52 single-chip microcomputer; USB detects and communication module comprises whether detect USB has electric module and USB to RS232 PL2303HX; Described startup with restart driver module and comprise TLP521-2 optocoupler isolator and 2 SRD-5VDC relays.
The utility model watchdog device has the following advantages:
1. adopt outside 9V/1A direct supply to add AMS1117-5V power module of voltage regulation, both guaranteed the reliability of power supply, realized again in the situation that power-off computing machine cuts out, allow computer starting enter the protective function of seeing of normal operating conditions;
2. use STC89C52 as controller, not only guaranteed the stability of system, and there is the brief convenience that integrates program code download and communication;
3. by USB interface of computer and computing machine, connect, and set up communication with computer software, realized the judgement of computer circuit breaking and computer software deadlock two states;
Configuration TLP521-2 optocoupler isolator and SRD-5VDC start and the startup of restarting relay combination with restart driver module, the power-off that has completed computing machine is from resuming operation and the deadlock function of reset of computer software;
5. this installation cost is low, volume is little, stability is high.
Accompanying drawing explanation
Fig. 1 has provided the structured flowchart of the utility model hardware watchdog device.
Embodiment
Below in conjunction with accompanying drawing, to the utility model, the embodiment for the hardware watchdog device of computing machine and software systems is described in more detail.
As shown in Figure 1, a kind of hardware watchdog device for computing machine and software systems, this device comprises power module, controller, USB detection and communication module and startup and restarts driver module.Power module comprises outside 9V/1A direct supply and AMS1117-5V power module of voltage regulation; Controller is STC89C52 single-chip microcomputer; USB detects and communication module comprises whether detect USB has electric module and USB to RS232 PL2303HX; Start and restart driver module and comprise TLP521-2 optocoupler isolator and 2 SRD-5VDC relays.
In actual use, according to Fig. 1, be made into printed circuit board (PCB) (pcb board).Specific embodiments of the present utility model: the computer software self-starting pattern that is set to start shooting, and regularly produce and feed dog data, by USB communication module, PL2303HX sends to controller, and meanwhile, whether controller regularly detects USB electricity.The startup of this hardware watchdog device with restart the startup in driver module access computer motherboard and restart button place.Coordinate the setting of controller Program code, when computer software crashes, controller does not receive data but USB while having electricity, and controller is controlled and restarted driver module computing machine is restarted, and completes the function of reset of computer software; Work as computer circuit breaking, when controller does not receive data USB without electricity, controller is controlled and is started driver module and makes computer starting, completes the self-recovering function of computing machine.
The utility model hardware watchdog device has adopted Microcomputer Controling Technique, has solved the reliability of the Industry Control monitoring system operation in unmanned situation.
Claims (1)
1. for a hardware watchdog device for computing machine and software systems, it is characterized in that: described watchdog device comprises: power module, controller, USB detection and communication module and startup and restart driver module; Described power module comprises outside 9V/1A direct supply and AMS1117-5V power module of voltage regulation; Described controller is STC89C52 single-chip microcomputer; USB detects and communication module comprises whether detect USB has electric module and USB to RS232 PL2303HX; Described startup with restart driver module and comprise TLP521-2 optocoupler isolator and 2 SRD-5VDC relays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320698669.3U CN203552244U (en) | 2013-11-07 | 2013-11-07 | Hardware watchdog device for computer and software system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320698669.3U CN203552244U (en) | 2013-11-07 | 2013-11-07 | Hardware watchdog device for computer and software system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203552244U true CN203552244U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320698669.3U Expired - Fee Related CN203552244U (en) | 2013-11-07 | 2013-11-07 | Hardware watchdog device for computer and software system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203552244U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353692A (en) * | 2015-12-08 | 2016-02-24 | 天津七一二通信广播有限公司 | Intelligent monitor for industrial control computer crash processing and realization method |
| CN105824738A (en) * | 2016-04-04 | 2016-08-03 | 合肥博雷电子信息技术有限公司 | Hardware watchdog device for computer body and software system monitoring module |
| CN106528369A (en) * | 2016-10-17 | 2017-03-22 | 盘锦英迈科技有限公司 | USB type computer watchdog apparatus and control method thereof |
-
2013
- 2013-11-07 CN CN201320698669.3U patent/CN203552244U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353692A (en) * | 2015-12-08 | 2016-02-24 | 天津七一二通信广播有限公司 | Intelligent monitor for industrial control computer crash processing and realization method |
| CN105824738A (en) * | 2016-04-04 | 2016-08-03 | 合肥博雷电子信息技术有限公司 | Hardware watchdog device for computer body and software system monitoring module |
| CN106528369A (en) * | 2016-10-17 | 2017-03-22 | 盘锦英迈科技有限公司 | USB type computer watchdog apparatus and control method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20211107 |