CN108173913A - The LTE wireless private networks communication device and method of a kind of electric fault indicator - Google Patents
The LTE wireless private networks communication device and method of a kind of electric fault indicator Download PDFInfo
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- CN108173913A CN108173913A CN201711372373.1A CN201711372373A CN108173913A CN 108173913 A CN108173913 A CN 108173913A CN 201711372373 A CN201711372373 A CN 201711372373A CN 108173913 A CN108173913 A CN 108173913A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0751—Error or fault detection not based on redundancy
- G06F11/0754—Error or fault detection not based on redundancy by exceeding limits
- G06F11/0757—Error or fault detection not based on redundancy by exceeding limits by exceeding a time limit, i.e. time-out, e.g. watchdogs
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
- H04L69/162—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields involving adaptations of sockets based mechanisms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- General Engineering & Computer Science (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
The invention discloses a kind of LTE wireless private network communication devices of electric fault indicator, including power module, communication module, SIM card processing unit and serial port module；SIM card processing unit, serial port module and power module are connect with communication module；Power module is responsible for the LTE wireless private networks communication device power supply；Communication module is responsible for wireless data reception and local data is sent；SIM card processing unit is responsible for monitoring SIM card；Serial port module is responsible for carrying out data interaction with electric fault indicator.The communication means of the device is also disclosed that simultaneously.The present invention realizes application of the electric fault indicator in power private network, solve thes problems, such as the service adaptation in electric power wireless private network.
Description
Technical field
The present invention relates to the LTE wireless private networks communication devices and method of a kind of electric fault indicator, belong to power business
Field.
Background technology
With commercial gradually universal and the multinomial policy of power industry the appearances of 4G-LTE, TD-LTE technologies are in power industry
In application it is also more and more extensive.On March 9th, 2015, the Ministry of Industry and Information Technology《About publication 1785-1805MHz frequency ranges again
The notice of wireless access system frequency usage matters》Departments' construction such as electric power, oil is encouraged to use 1.8G wireless private networks；With
The Pilot project construction of LTE wireless private networks, to realize construction of professional network integration operation management system, wireless private network secure accessing system frame
The target of structure, solving service adaptation becomes matter of utmost importance.
At present, the communication device that electric fault indicator uses in two distant business of power distribution automation is embedded GPRS public
Network Communication module, and GPRS public networks module can not work in electric power wireless private network environment, need a kind of low-power consumption, stabilization it is special
Netcom's T unit realizes application of the fault detector in power private network.
Invention content
In order to solve the above technical problem, the present invention provides a kind of LTE wireless private networks communications of electric fault indicator
Device and method.
In order to achieve the above object, the technical solution adopted in the present invention is：
The LTE wireless private network communication devices of a kind of electric fault indicator, at power module, communication module, SIM card
Manage unit and serial port module；SIM card processing unit, serial port module and power module are connect with communication module；
Power module is responsible for the LTE wireless private networks communication device power supply；Communication module is responsible for wireless data reception and sheet
Ground data are sent；SIM card processing unit is responsible for monitoring SIM card；Serial port module is responsible for carrying out data friendship with electric fault indicator
Mutually.
Power module external power supply, the level signal of power module output reach communication module work after level conversion
Level standard, communication module output level reach after level conversion serial port module work level standard.
Serial port module includes serial ports RS232 modules and serial ports TTL modules, supports the LTE wireless private networks communication device
TTL, RS232 both of which, for the level conversion of communication module output into Transistor-Transistor Logic level, Transistor-Transistor Logic level is serial ports TTL module for power supply,
Transistor-Transistor Logic level is converted into RS232 level, and RS232 level is serial ports RS232 module for power supply.
Further include the signal designation lamp module being connect with communication module, debugging interface circuit, antennal interface and reset circuit；
When communication module after the power is turned on, indicating lamp module sends out state instruction；Debugging interface circuit is responsible for the LTE wireless private networks communication dress
Put debugging；Antennal interface external cord, to enhance wireless signal；Reset circuit makes the LTE wireless private networks communication device extensive
Initial state is arrived again.
Communication module is integrated with security encryption chip, and ipsec tunnel work(is provided for the LTE wireless private networks communication device
Energy.
A kind of communication means of the LTE wireless private network communication devices of electric fault indicator, including,
Network registry is realized using communication configuration testing process；
After network registry success, data transmit-receive is realized using serial ports transparent transmission, at the same using finger daemon realize the LTE without
Line private network communication device stable operation.
Communication configuration testing process the specific steps are,
Step 1 detects serial port module state：Electric fault indicator is sent " AT " orders, if returning to " OK ", skip to
Step 2；If nothing returns code, repeatedly step 1, after repeated several times, communication module is restarted；
Step 2：Whether inquiry reads SIM card：Electric fault indicator is sent " AT+CCID " orders, if return "+
CCID：(ICCID) ", then it represents that read SIM card, skipped to step 3；If "+CCID is not returned：(ICCID) ", then repeatedly step
Two, after repetition is several, restart communication module；
Step 3：Check SIM card state：Electric fault indicator is sent " AT+SPIN " orders, if returning to "+CPIN：
READY ", then it represents that SIM card can be used, and skip to step 4；If return to "+CPIN：ERROR ", then repeatedly step 3, repeated several times
Later, restart communication module；
Step 4：Inquire network attachment situation：Electric fault indicator is sent " AT+CREG" order, if return "+
CREG:0,1 " or "+CREG:0,5 ", then it represents that registered network, skipped to step 5；If return to "+CREG:0,<0,2,3,
4>", then repeatedly step 4 after repeated several times, restarts communication module；
Step 5：Inquire network attachment state：Electric fault indicator is sent " AT+CGATT" order, if return "+
CGATT:1 ", then it represents that network attachment success；If return to "+CGATT:0 ", then repeatedly step 5 after repeated several times, is restarted logical
Believe module.
Serial ports transparent transmission process is,
When the LTE wireless private networks communication device is in client mode：
Socket is created, connection request is sent out to server and server communicates；
When the LTE wireless private networks communication device is in server mode：
Socket is created, socket is tied on local address and port, the socket of establishment is set as listening mode,
Etc. the connection request of client to be received, after connection request arrives, receive connection request, return one it is new for this
The socket of connection is communicated with the socket and client of return；
When receiving the data that main website is sent, a timer is set, if not receiving other in preset time
Data, then be packaged into a frame by the data having received, and electric fault indicator is sent to by serial port module.
Finger daemon is, using house dog program, when serial ports transparent transmission processes most evidences, stuck situation occurs, guards the gate
Dog program does not obtain the response of the LTE wireless private networks communication device in preset time, and it is wirelessly special will to reset the LTE
Netcom's T unit, all program restartings, ensure that the stable operation of whole system.
The advantageous effect that the present invention is reached：The present invention realizes application of the electric fault indicator in power private network,
Solve the problems, such as the service adaptation in electric power wireless private network.
Description of the drawings
Fig. 1 is the structure diagram of apparatus of the present invention；
Fig. 2 is communication configuration testing process；
Fig. 3 is serial ports transparent transmission flow chart.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and be not intended to limit the protection scope of the present invention and limit the scope of the invention.
As shown in Figure 1, a kind of LTE wireless private network communication devices of electric fault indicator, including power module, communication mould
Block, SIM card processing unit, serial port module, signal designation lamp module, debugging interface circuit, antennal interface and reset circuit；Signal
Indicating lamp module, debugging interface circuit, antennal interface, reset circuit, SIM card processing unit, serial port module and power module are equal
It is connect with communication module.
Power module is responsible for the LTE wireless private networks communication device power supply, power module external power supply, power module output
Level signal reach after level conversion communication module work level standard, communication module output level through over level
Reach the level standard of serial port module work after conversion.Power module requirement 12V input, 12V level signals be converted into 3.8V to
Communication module is powered, and the level conversion that communication module exports is powered into 3.3V to serial port module.
Serial port module be responsible for electric fault indicator carry out data interaction, serial port module include serial ports RS232 modules and
Serial ports TTL modules, serial ports RS232 modules and serial ports TTL modules are connect with communication module, and the LTE wireless private networks is made to communicate
Device supports TTL, RS232 both of which, and for the level conversion of communication module output into Transistor-Transistor Logic level, Transistor-Transistor Logic level is serial ports TTL moulds
Block is powered, and Transistor-Transistor Logic level is converted into RS232 level, and RS232 level is serial ports RS232 module for power supply.Serial ports RS232 modules and string
Mouth TTL module inputs are 3.3V, and communication module exports transformed 3.3V level and directly feeds serial ports TTL modules, communicates
Module exports transformed 3.3V level and needs under reconvert, complies with RS232 level standards, then supplies serial ports RS232 moulds
Block.
Communication module is responsible for wireless data reception and local data is sent, here using LTE communication module, frequency range
1785MHz-1805MHz supports antenna diversity reception, supports data service, provides abundant subscriber signal interface, supports standard
AT command set, communication module is integrated with security encryption chip, ipsec tunnel provided for the LTE wireless private networks communication device
Function, again by wireless network transmissions, will ensure the safety of communication after the data encryption in communication process.
SIM card processing unit is responsible for monitoring SIM card.When communication module after the power is turned on, indicating lamp module sends out state instruction, this
In indicator light include red light and green light, red light is always on after the power is turned on, and green light flickers during data interaction.Debugging interface circuit is responsible for institute
State the debugging of LTE wireless private networks communication device.Antennal interface external cord, to enhance wireless signal.Reset circuit makes the LTE
Wireless private network communication device returns to state.
The communication means of above device, includes the following steps：
1) network registry is realized using communication configuration testing process.
As shown in Fig. 2, communication configuration testing process the specific steps are：
Step 1 detects serial port module state：Electric fault indicator is sent " AT " orders, if returning to " OK ", skip to
Step 2；If nothing returns code, repeatedly step 1, after repeated several times, generally 15 times, communication module is restarted；
Step 2：Whether inquiry reads SIM card：Electric fault indicator is sent " AT+CCID " orders, if return "+
CCID：(ICCID) ", then it represents that read SIM card, skipped to step 3；If "+CCID is not returned：(ICCID) ", then repeatedly step
Two, after repetition is several, generally 5 times, restart communication module；
Step 3：Check SIM card state：Electric fault indicator is sent " AT+SPIN " orders, if returning to "+CPIN：
READY ", then it represents that SIM card can be used, and skip to step 4；If return to "+CPIN：ERROR ", then repeatedly step 3, repeated several times
Later, generally 3 times, restart communication module；
Step 4：Inquire network attachment situation：Electric fault indicator is sent " AT+CREG" order, if return "+
CREG:0,1 " or "+CREG:0,5 ", then it represents that registered network, skipped to step 5；If return to "+CREG:0,<0,2,3,
4>", then repeatedly step 4 after repeated several times, generally 40 times, restarts communication module；
Step 5：Inquire network attachment state：Electric fault indicator is sent " AT+CGATT" order, if return "+
CGATT:1 ", then it represents that network attachment success；If return to "+CGATT:0 ", then repeatedly step 5, after repeated several times, generally
10 times, restart communication module.
2) after network registry success, data transmit-receive is realized, while realize the LTE using finger daemon using serial ports transparent transmission
Wireless private network communication device stable operation.
As shown in figure 3, serial ports transparent transmission process is：When the LTE wireless private networks communication device is in client mode, wound
Socket is built, connection request is sent out to server and server communicates；When the LTE wireless private networks communication device is in
During server mode, socket is created, socket is tied on local address and port, the socket of establishment is set as monitoring
Pattern waits the connection request of client to be received, after connection request arrives, receives connection request, return one it is new for
The socket being connect with this is communicated with the socket and client of return；When receiving the data that main website is sent,
One 80ms timer is set, if not receiving other data in preset time (i.e. 80ms), the data that will be had received
A frame is packaged into, electric fault indicator is sent to by serial port module.
Finger daemon is：Using house dog program, when serial ports transparent transmission processes most evidences, there is stuck situation, guard the gate
Dog program does not obtain the response of the LTE wireless private networks communication device in preset time, and it is wirelessly special will to reset the LTE
Netcom's T unit, all program restartings, ensure that the stable operation of whole system.
The present invention connects power private network by communication module, connects electric fault indicator by serial port module, realizes
Application of the electric fault indicator in power private network, solve thes problems, such as the service adaptation in electric power wireless private network.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformation can also be made, these are improved and deformation
Also it should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of LTE wireless private network communication devices of electric fault indicator, it is characterised in that：Including power module, communication mould
Block, SIM card processing unit and serial port module；SIM card processing unit, serial port module and power module are connect with communication module；
Power module is responsible for the LTE wireless private networks communication device power supply；Communication module is responsible for wireless data reception and local number
According to transmission；SIM card processing unit is responsible for monitoring SIM card；Serial port module is responsible for carrying out data interaction with electric fault indicator.
2. a kind of LTE wireless private network communication devices of electric fault indicator according to claim 1, it is characterised in that：
Power module external power supply, the level signal of power module output reach the level mark of communication module work after level conversion
Standard, the level of communication module output reach the level standard of serial port module work after level conversion.
3. a kind of LTE wireless private network communication devices of electric fault indicator according to claim 2, it is characterised in that：
Serial port module includes serial ports RS232 modules and serial ports TTL modules, and the LTE wireless private networks communication device is made to support TTL, RS232
Both of which, for the level conversion of communication module output into Transistor-Transistor Logic level, Transistor-Transistor Logic level is serial ports TTL module for power supply, and Transistor-Transistor Logic level is converted
Into RS232 level, RS232 level is serial ports RS232 module for power supply.
4. a kind of LTE wireless private network communication devices of electric fault indicator according to claim 1, it is characterised in that：
Further include the signal designation lamp module being connect with communication module, debugging interface circuit, antennal interface and reset circuit；When communication mould
After the power is turned on, indicating lamp module sends out state instruction to block；Debugging interface circuit is responsible for the LTE wireless private networks communication device debugging；
Antennal interface external cord, to enhance wireless signal；Reset circuit returns to the LTE wireless private networks communication device
State.
5. a kind of LTE wireless private network communication devices of electric fault indicator according to claim 1, it is characterised in that：
Communication module is integrated with security encryption chip, and ipsec tunnel function is provided for the LTE wireless private networks communication device.
6. a kind of communication means of the LTE wireless private network communication devices of electric fault indicator, it is characterised in that：Including,
Network registry is realized using communication configuration testing process；
After network registry success, data transmit-receive is realized, while realize that the LTE is wirelessly special using finger daemon using serial ports transparent transmission
Netcom's T unit stable operation.
7. a kind of communication means of the LTE wireless private network communication devices of electric fault indicator according to claim 6,
It is characterized in that：Communication configuration testing process the specific steps are,
Step 1 detects serial port module state：Electric fault indicator is sent " AT " orders, if returning to " OK ", skip to step
Two；If nothing returns code, repeatedly step 1, after repeated several times, communication module is restarted；
Step 2：Whether inquiry reads SIM card：Electric fault indicator is sent " AT+CCID " orders, if returning to "+CCID：
(ICCID) ", then it represents that read SIM card, skipped to step 3；If "+CCID is not returned：(ICCID) ", then repeatedly step 2, weight
It is multiple it is several after, restart communication module；
Step 3：Check SIM card state：Electric fault indicator is sent " AT+SPIN " orders, if returning to "+CPIN：READY ",
Then represent that SIM card can be used, and skip to step 4；If return to "+CPIN：ERROR ", then repeatedly step 3, after repeated several times, weight
Open communication module；
Step 4：Inquire network attachment situation：Electric fault indicator is sent " AT+CREG" order, if returning to "+CREG:0,
1 " or "+CREG:0,5 ", then it represents that registered network, skipped to step 5；If return to "+CREG:0,<0,2,3,4>", then
Step 4 is repeated, after repeated several times, restarts communication module；
Step 5：Inquire network attachment state：Electric fault indicator is sent " AT+CGATT" order, if returning to "+CGATT:
1 ", then it represents that network attachment success；If return to "+CGATT:0 ", then repeatedly step 5 after repeated several times, restarts communication mould
Block.
8. a kind of communication means of the LTE wireless private network communication devices of electric fault indicator according to claim 6,
It is characterized in that：Serial ports transparent transmission process is,
When the LTE wireless private networks communication device is in client mode：
Socket is created, connection request is sent out to server and server communicates；
When the LTE wireless private networks communication device is in server mode：
Socket is created, socket is tied on local address and port, the socket of establishment is set as listening mode, is waited for
Receive client connection request, after connection request arrives, receive connection request, return one newly for being connect with this
Socket, communicated with the socket and client of return；
When receiving the data that main website is sent, a timer is set, if not receiving other data in preset time,
The data having received then are packaged into a frame, electric fault indicator is sent to by serial port module.
9. a kind of communication means of the LTE wireless private network communication devices of electric fault indicator according to claim 6,
It is characterized in that：Finger daemon is,
Using house dog program, when serial ports transparent transmission processes most evidences, there is stuck situation, house dog program is in preset time
The response of the LTE wireless private networks communication device is not obtained inside, will reset the LTE wireless private networks communication device, is owned
Program restarts, and ensure that the stable operation of whole system.
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| CN201711372373.1A CN108173913A (en) | 2017-12-19 | 2017-12-19 | The LTE wireless private networks communication device and method of a kind of electric fault indicator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110262452A (en) * | 2019-06-24 | 2019-09-20 | 五邑大学 | A kind of Intelligent fish tank control method, device and storage medium to automatically reset |
| CN112565012A (en) * | 2020-12-01 | 2021-03-26 | 重庆芯讯通无线科技有限公司 | Automatic test method, system, medium and equipment for module first network finding time |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513134A (en) * | 2013-09-25 | 2014-01-15 | 国家电网公司 | Comprehensive diagnosis device and method for power on-site terminal faults |
| CN103605097A (en) * | 2013-11-21 | 2014-02-26 | 广西电网公司电力科学研究院 | Distribution line fault indication integrated equipment function and performance detection system |
| US20160048123A1 (en) * | 2014-08-14 | 2016-02-18 | Siemens Aktiengesellschaft | Telecontrol arrangement, system and method for observing and/or controlling an installation |
| CN107257250A (en) * | 2017-07-28 | 2017-10-17 | 国网江苏省电力公司南京供电公司 | A kind of electric power wireless communication terminal based on Micro USB interfaces |
-
2017
- 2017-12-19 CN CN201711372373.1A patent/CN108173913A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513134A (en) * | 2013-09-25 | 2014-01-15 | 国家电网公司 | Comprehensive diagnosis device and method for power on-site terminal faults |
| CN103605097A (en) * | 2013-11-21 | 2014-02-26 | 广西电网公司电力科学研究院 | Distribution line fault indication integrated equipment function and performance detection system |
| US20160048123A1 (en) * | 2014-08-14 | 2016-02-18 | Siemens Aktiengesellschaft | Telecontrol arrangement, system and method for observing and/or controlling an installation |
| CN107257250A (en) * | 2017-07-28 | 2017-10-17 | 国网江苏省电力公司南京供电公司 | A kind of electric power wireless communication terminal based on Micro USB interfaces |
Non-Patent Citations (1)
| Title |
|---|
| 林心勇: "电力故障指示器4G无线专网通信单元设计与实现", 《电力信息与通信技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110262452A (en) * | 2019-06-24 | 2019-09-20 | 五邑大学 | A kind of Intelligent fish tank control method, device and storage medium to automatically reset |
| CN112565012A (en) * | 2020-12-01 | 2021-03-26 | 重庆芯讯通无线科技有限公司 | Automatic test method, system, medium and equipment for module first network finding time |
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Application publication date: 20180615 |
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