CN107453943A - A kind of network interface card detection and self-repairing circuit - Google Patents
A kind of network interface card detection and self-repairing circuit Download PDFInfo
- Publication number
- CN107453943A CN107453943A CN201710539731.7A CN201710539731A CN107453943A CN 107453943 A CN107453943 A CN 107453943A CN 201710539731 A CN201710539731 A CN 201710539731A CN 107453943 A CN107453943 A CN 107453943A
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- electric capacity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0659—Management of faults, events, alarms or notifications using network fault recovery by isolating or reconfiguring faulty entities
- H04L41/0661—Management of faults, events, alarms or notifications using network fault recovery by isolating or reconfiguring faulty entities by reconfiguring faulty entities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Debugging And Monitoring (AREA)
Abstract
The present invention is a kind of network interface card detection and self-repairing circuit, including WIFI module J12, main control chip U1, electric capacity C687 and triode N-type metal-oxide-semiconductor Q3, one end connection magnetic bead FB21 and electric capacity C688 of the electric capacity C687, magnetic bead FB21 other end connection electric capacity C691, metal-oxide-semiconductor Q1 source electrode and resistance R170, electric capacity C687 other end connection electric capacity C688 and ground, metal-oxide-semiconductor Q1 grid connection resistance R170 and resistance R171, the beneficial effects of the invention are as follows：If run into, inspection is abnormal less than network interface card usb communication or discovery WIF signals transmit communication abnormality in course of normal operation; only need to be arranged to high level again by being first arranged to GPIO0_30 pin 200ms low level; WIFI module just re-powers startup, loading procedure, ensures proper communication.Avoid the need for going to restart to device power manually in real process.
Description
Technical field
The present invention relates to network interface card detection technique, specially a kind of network interface card detection and self-repairing circuit.
Background technology
We have actually entered a wireless technology immanent epoch.Mobile phone communication, short message communication are nowhere not
；GPS navigation system navigates for us and shown the way；Wireless intelligent house equipment, wireless malfunction monitoring system, crop environment prison
The typical cases such as control system are surveyed, allow me to see that wireless technology is continued to develop and constantly expanded, wireless technology constantly changes
Our life style, make our life more convenient.Wherein, WIFI transmission occupies critical positions in wireless transmissions, with
Internet of Things development, WIFI communications applications are wider.
With the development of security and guard technology, by former simulation monitoring, till now network monitoring.Network monitoring occur with
Afterwards,
The ratio more and more higher accounted for WIFI transmission images in safety monitoring.Due to the complexity of security protection construction and to peace
Full stability requirement is very high, therefore the stability of WIFI transmission must must just ensure.Wireless network card automatic detection and recovery
Technology, it can effectively ensure that WIFI is stable.
The content of the invention
It is an object of the invention to provide a kind of detection of network interface card and self-repairing circuit, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the present invention provides following technical scheme：
A kind of network interface card detection and self-repairing circuit, including WIFI module J12, main control chip U1, electric capacity C687 and triode
N-type metal-oxide-semiconductor Q3, the electric capacity C687 one end connection magnetic bead FB21 and electric capacity C688, magnetic bead FB21 other end connection electric capacity
C691, metal-oxide-semiconductor Q1 source electrode and resistance R170, electric capacity C687 other end connection electric capacity C688 and ground, MOS pipes Q1 grid
Connect resistance R170 and resistance R171, resistance R171 other end connecting triode N-type metal-oxide-semiconductor Q3 colelctor electrode, triode N-type
Metal-oxide-semiconductor Q3 base stage connection resistance R169, resistance the R169 other end connection main control chip U1 GPIO0_30 pins and resistance
R172。
Further technical scheme as the present invention：The pin USB_DM connection WIFI modules J12 of the main control chip U1
Pin 2, main control chip U1 pin USB_DP connection WIFI modules J12 pin 3.
Further technical scheme as the present invention：The model GM8135S of the main control chip U1.
Compared with prior art, the beneficial effects of the invention are as follows：If running into inspection less than network interface card in course of normal operation
USB communication abnormalities find WIF signals transmission communication abnormality, it is only necessary to by being first arranged to 200ms's to GPIO0_30 pin
Low level is arranged to high level again, and WIFI module just re-powers startup, loading procedure, ensures proper communication.In real process
In avoid the need for going to restart to device power manually.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example only part of the embodiment of the present invention, rather than whole embodiments.It is common based on the embodiment in the present invention, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
Refering to Fig. 1；In the embodiment of the present invention, a kind of network interface card detection and self-repairing circuit, including WIFI module J12, master control
Chip U1, electric capacity C687 and triode N-type metal-oxide-semiconductor Q3, the electric capacity C687 one end connect magnetic bead FB21 and electric capacity C688,
Magnetic bead FB21 other end connection electric capacity C691, metal-oxide-semiconductor Q1 source electrode and resistance R170, electric capacity C687 other end connection electric capacity
C688 and ground, metal-oxide-semiconductor Q1 grid connection resistance R170 and resistance R171, resistance R171 other end connecting triode N-type MOS
Pipe Q3 colelctor electrode, triode N-type metal-oxide-semiconductor Q3 base stage connection resistance R169, resistance R169 other end connection main control chip
U1 GPIO0_30 pins and resistance R172.
Main control chip U1 pin USB_DM connection WIFI modules J12 pin 2, main control chip U1 pin USB_DP connections
WIFI module J12 pin 3.Main control chip U1 model GM8135S.
The operation principle of the present invention：J12 is WIFI module, and WIFIEN_GPIO0_30 connects video camera main control chip
(GM8135S) this pin of GPIO0_30；3.3V is the power supply of whole system, and WIFI_POWER is to be powered to WIFI module
Power supply.Do not do any operation when starting power up to GPIO0_30, metal-oxide-semiconductor Q3 conductings, metal-oxide-semiconductor Q1 G pin are low level,
Therefore metal-oxide-semiconductor Q1 conductings, WIFI module normal power supply 3.3V, WIFI module can start up.In course of normal operation such as
Fruit runs into inspection less than network interface card usb communication exception or finds WIF signals transmission communication abnormality, it is only necessary to by GPIO0_30
The low level that pin is first arranged to 200ms is arranged to high level again, and WIFI module just re-powers startup, loading procedure, ensured just
Normal open is believed.Avoid the need for going to restart to device power manually in real process.
Network interface card detection algorithm
1st, system layer monitors
Every the message file of ad-hoc location of the 5s timing detection wireless network cards in system, path is "/sys/bus/
Usb/devices/1-1/idProduct ", it is abnormal if this document is not present, then normal condition be present；
After this document is present and the hardware information of network interface card is read out and judged, if MAC Address is 00：00：00：
00：00：00 and IP address also for 0.0.0.0, then the network interface card is abnormal or without production procedure, as the interface module of exception
Processing；
2nd, network monitor
The data of video streaming services port 554 are counted；If no client is attached to rising, only judge
The listening state of 554 ports；If client has connection to it, then a data system is carried out respectively to each connection for every two seconds
Meter is (as x is used in connection 11,x2......xnRepresent, y is used in connection 21,y2......ynRepresent), the data flow state each connected
Count respectively；When each connection is continuous counts on 21 times, calculate first 20 times in this 21 times average value (Represent), and calculate these average values () average value (being assumed to be A)；
The average value (being assumed to be P) of the 21st data of all connections is calculated again, if P/A<1/5 is regarded as exception,
And so on newly-increased data replace oldest data.Because have on code stream value and dynamic adjustment code stream specific
Gradient, even the cliff of displacement formula that network condition difference resolution decreasing and code stream are also not in this data volume is successively decreased；Certainly have
A kind of unexpected power down of situation client, it cannot also be sent out again with the network connection data of the client, so needing to match somebody with somebody again
Close state working principle of hardware USB communication abnormalities level detection just can determine that network interface card exception.
Therefore deduce that：
Finally judge again：
Claims (3)
1. a kind of network interface card detection and self-repairing circuit, including WIFI module J12, main control chip U1, electric capacity C687 and triode N-type
Metal-oxide-semiconductor Q3, it is characterised in that one end connection magnetic bead FB21 and electric capacity C688 of the electric capacity C687, the magnetic bead FB21 other end
Connect electric capacity C691, metal-oxide-semiconductor Q1 source electrode and resistance R170, electric capacity C687 other end connection electric capacity C688 and ground, metal-oxide-semiconductor Q1
Grid connection resistance R170 and resistance R171, resistance R171 other end connecting triode N-type metal-oxide-semiconductor Q3 colelctor electrode, three
Pole pipe N-type metal-oxide-semiconductor Q3 base stage connection resistance R169, resistance the R169 other end connection main control chip U1 GPIO0_30 pins
With resistance R172.
2. a kind of network interface card detection according to claim 1 and self-repairing circuit, it is characterised in that the main control chip U1's
Pin USB_DM connection WIFI modules J12 pin 2, main control chip U1 pin USB_DP connection WIFI modules J12 pin 3.
3. a kind of network interface card detection according to claim 1 and self-repairing circuit, it is characterised in that the main control chip U1's
Model GM8135S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710539731.7A CN107453943A (en) | 2017-07-05 | 2017-07-05 | A kind of network interface card detection and self-repairing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710539731.7A CN107453943A (en) | 2017-07-05 | 2017-07-05 | A kind of network interface card detection and self-repairing circuit |
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| CN107453943A true CN107453943A (en) | 2017-12-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108536479A (en) * | 2018-04-17 | 2018-09-14 | 百度在线网络技术（北京）有限公司 | Method and apparatus for restarting Android device |
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| CN102025353A (en) * | 2010-11-11 | 2011-04-20 | 苏州合欣美电子科技有限公司 | Automatic reset circuit of ecological room |
| CN102644418A (en) * | 2012-05-05 | 2012-08-22 | 山西三关安全技术防范产品研究院 | Cabinet door control alarm |
| CN102970699A (en) * | 2012-11-09 | 2013-03-13 | 大唐移动通信设备有限公司 | Fault handling method and distributed base station |
| CN103036778A (en) * | 2012-12-18 | 2013-04-10 | 上海斐讯数据通信技术有限公司 | Device and method preventing equipment from ossifying in residential internet gateway device |
| CN103973515A (en) * | 2014-05-12 | 2014-08-06 | 浪潮电子信息产业股份有限公司 | Network card stability testing method |
| CN105446446A (en) * | 2015-12-12 | 2016-03-30 | 西安交通大学 | Power supply control device and method of hardware watchdog |
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2017
- 2017-07-05 CN CN201710539731.7A patent/CN107453943A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090196632A1 (en) * | 2008-02-04 | 2009-08-06 | Zhenhong Zhang | Optical burst receiver and method |
| CN101860624A (en) * | 2010-06-21 | 2010-10-13 | 中兴通讯股份有限公司 | Crash auto-restart method and mobile phone |
| CN102025353A (en) * | 2010-11-11 | 2011-04-20 | 苏州合欣美电子科技有限公司 | Automatic reset circuit of ecological room |
| CN102644418A (en) * | 2012-05-05 | 2012-08-22 | 山西三关安全技术防范产品研究院 | Cabinet door control alarm |
| CN102970699A (en) * | 2012-11-09 | 2013-03-13 | 大唐移动通信设备有限公司 | Fault handling method and distributed base station |
| CN103036778A (en) * | 2012-12-18 | 2013-04-10 | 上海斐讯数据通信技术有限公司 | Device and method preventing equipment from ossifying in residential internet gateway device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108536479A (en) * | 2018-04-17 | 2018-09-14 | 百度在线网络技术（北京）有限公司 | Method and apparatus for restarting Android device |
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Application publication date: 20171208 |