CN108375716B - Portable distribution line fault positioning device and method - Google Patents
Portable distribution line fault positioning device and method Download PDFInfo
- Publication number
- CN108375716B CN108375716B CN201810215300.XA CN201810215300A CN108375716B CN 108375716 B CN108375716 B CN 108375716B CN 201810215300 A CN201810215300 A CN 201810215300A CN 108375716 B CN108375716 B CN 108375716B
- Authority
- CN
- China
- Prior art keywords
- fault
- positioning device
- information receiving
- line
- indicator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009826 distribution Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000006870 function Effects 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 58
- 238000010586 diagram Methods 0.000 claims description 31
- 238000009434 installation Methods 0.000 claims description 29
- 238000001514 detection method Methods 0.000 claims description 16
- 230000007306 turnover Effects 0.000 claims description 16
- 238000007689 inspection Methods 0.000 claims description 15
- 238000012423 maintenance Methods 0.000 claims description 7
- 238000000819 phase cycle Methods 0.000 claims description 6
- 230000011664 signaling Effects 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Abstract
The utility model provides a portable distribution line fault location device and method, includes teletransmission type fault indicator and fault information receiving and positioner, teletransmission type fault indicator is used for action and sends the trouble identification code through wireless module after detecting line short circuit trouble or earth fault, portable fault information receiving and positioner is used for receiving, judging and displaying the fault signal to further position the circuit position of trouble that takes place, teletransmission type fault indicator and fault information receiving and positioner both carry out wireless communication through the LoRaWan agreement. The portable power distribution line fault positioning device is developed with small investment, is matched with the fault indicator, can rapidly and accurately position a short circuit or grounding fault point of a line, effectively improves the fault searching and positioning level of a power distribution network, and has moderate price, perfect functions, portability, practicability and wide use prospect.
Description
Technical Field
The invention relates to a device and a method for positioning faults of a portable distribution line with the voltage of 35kV or below, in particular to an integrated device and a method for transmitting, receiving, displaying and distinguishing fault information.
Background
In a power distribution network system of 35kV and below, the circuit branches are more, the operation condition is complex, short circuit and grounding faults occur frequently, and after the faults occur, line inspection staff need to find out the fault position as soon as possible by using the existing fault positioning method, and power transmission is eliminated and recovered in time.
The fault location method is very simple and effective by utilizing the fault indicator to obtain the fault location information of the distribution line. The fault indicator is arranged on power equipment such as an overhead distribution line, a cable, a ring main unit and the like, when the line breaks down, the fault indicator can send out alarm information, and line inspection personnel can shorten the fault searching time according to the alarm information, remove the fault and recover normal power supply.
The fault indicator applied to the power grid at present mainly comprises two major types, namely an on-site fault indicator and a two-remote fault indicator, wherein the former is low in price and the application quantity is the largest, but the informatization level is low, only a local alarm can be displayed after a line breaks down, long-distance transmission of fault information cannot be realized, when a fault is found, a line inspection person needs to start to inspect a fault area of a section of the downstream of the line along an outlet of a transformer substation, the state of the fault indicator is difficult to observe with naked eyes at night or under severe weather conditions, and the fault finding time is relatively long; the latter can realize telemetry and remote signaling, but the fault indicator of the type needs to be provided with a large number of collecting units, erect a receiving and controlling platform and transmit fault information in a wireless transmission mode such as GSM, 3G and the like, has high investment cost and the price is about 10 times that of the in-situ fault indicator, so the fault indicator has less application quantity in a power grid.
Based on the above, it is necessary to develop a fault information receiving and positioning device for the distribution line, which has moderate price and perfect functions.
Disclosure of Invention
The technical problems to be solved by the invention are as follows:
the portable distribution line fault positioning device solves the problems that the current fault indicator alarm signal cannot be transmitted remotely, so that the fault searching efficiency is low, and the requirement of the alarm indicator on the platform erection is high, so that the investment cost is high, and achieves the purpose of receiving and positioning the fault information of the distribution line of 35kV or below in a simple and economical method.
The technical scheme of the invention is as follows:
a portable distribution lines trouble positioner, its characterized in that: the remote transmission type fault indicator is used for detecting and sending fault signals and indicating fault positions;
the fault information receiving and positioning device is portable mobile equipment and is used for receiving and judging fault signals and further positioning and displaying the positions of the lines with faults in the form of a line diagram;
the remote transmission type fault indicator and the fault information receiving and positioning device are communicated and networked through the LoRaWan protocol.
Preferably, the remote transmission type fault indicator is used for detecting whether a line has a fault or not, and when a line fault signal is detected, an identification code is sent to the fault information receiving and positioning device, and the identification code uniquely corresponds to one remote transmission type fault indicator.
Preferably, the fault information receiving and positioning device comprises a second wireless module, a second single-chip microcomputer, a second memory, an alarm, a touch screen, a power supply device and a second antenna, wherein the second single-chip microcomputer is respectively and electrically connected with the second wireless module, the second memory, the touch screen and the alarm, and the second wireless module, the second memory, the touch screen, the alarm and the second single-chip microcomputer are respectively and electrically connected with the power supply device;
preferably, the second wireless module has transmitting and receiving functions, and is configured to scan and receive a wireless signal sent by the remote transmission fault indicator, and further convert received data into an identification code and send the identification code to the second singlechip;
preferably, the second memory pre-stores installation information of each remote fault indicator in a database, wherein the installation information comprises an installation position, a line name, a rod number and a phase sequence; a circuit diagram of the distribution circuit is also prestored;
preferably, the second single chip microcomputer is configured to control signal transceiving of the second wireless module, control storage, update and retrieval of data in the second memory, and control display of a screen of the touch screen and sending of alarm information of the alarm, specifically, is configured to receive an identification code sent by the second wireless module, compare the received information with a circuit diagram and installation information stored in advance in the second memory, read a circuit diagram stored in a database, push a circuit position where the remote transmission type fault indicator sending an alarm is located in a form of a screen to be displayed on the touch screen, mark the remote transmission type fault indicator in a form of a flashing red point on the circuit diagram, and drive the alarm to perform sound alarm at the same time so as to remind line inspection personnel.
Preferably, the fault information receiving and positioning device further includes a 4G module, configured to update a circuit diagram pre-stored in the second memory each time the network is connected.
Preferably, the fault information receiving and positioning device can receive and identify fault signals sent by a plurality of remote transmission fault indicators, and judge the installation position of the fault indicators through unique identification codes.
Preferably, the fault information receiving and positioning device can judge the ground fault and the short circuit fault: the fault information receiving and positioning device judges whether the fault property is a short circuit fault or a ground fault according to whether the signals sent by the received fault indicators are in-phase or out-of-phase, if the signals are signals sent by the in-phase, the fault information receiving and positioning device judges that the fault property is the ground fault, and if the signals are signals sent by the out-of-phase, the fault information receiving and positioning device judges that the fault property is the short circuit fault.
Preferably, the fault information receiving and positioning device can send out a reset instruction at any time to remotely reset the remote transmission fault indicator.
Preferably, the fault information receiving and positioning device comprises a box body, and a switch, a charging port and a data interface are arranged on the surface of the box body.
Preferably, the remote transmission type fault indicator comprises a shell, wherein a wire clamp is arranged at the bottom of the shell, a card turning window is formed in the upper part of the shell, a card turning coil and a card turning indicating structure are arranged in the shell, and a first antenna is arranged on the outer surface of the shell;
the card turnover device comprises a shell, a card turnover coil, a first single-chip microcomputer, a fault detection module and a first wireless module, wherein the first single-chip microcomputer, the fault detection module and the first wireless module are arranged in the shell;
the fault detection module is used for detecting whether a circuit has a fault or not, and when a circuit short-circuit fault or a ground fault signal is detected, a high level is generated on the card turning pin to trigger the first singlechip to power on;
the first singlechip is used for receiving a power-on signal and controlling the turn-over indication structure to turn over after power-on, and simultaneously, the unique identification code is sent to the first wireless module;
the first wireless module has transmitting and receiving functions and is used for receiving a unique identification code sent by the singlechip and converting the identification code into a wireless signal to be sent out.
A distribution line fault positioning method is characterized in that: the method comprises the following steps:
step A. Initializing
When the remote transmission type fault indicator is started, the first singlechip is in a low-power-consumption mode, and meanwhile, the first singlechip can enter the low-power-consumption mode in a manual reset mode;
step B. Detection of line fault signal
The fault detection module of the remote transmission fault indicator detects a fault signal to judge whether a circuit is faulty or not, and when a short circuit or grounding fault signal is acquired, a high level is generated on the card turning pin to trigger the first singlechip to power on; when no fault signal is acquired, the system is continuously in a low power consumption mode;
step C. Indication of line fault location and transmission of fault signal
After the first singlechip is electrified, a card turning instruction is sent to the card turning coil, and the card turning instruction structure is controlled to move to make on-site alarm information in a turning instruction form; meanwhile, the first singlechip sends a unique identification code stored in the first memory in advance to the first wireless module, the first wireless module changes the identification code into a wireless signal to be sent out through the LoRaWAN protocol, and repeatedly sends the wireless identification code signal after delaying for t seconds, judges whether the sending count-down n seconds is overtime after each sending, if not, continues to send the wireless signal, if not, the first wireless module is powered off to reset the coil, and the first singlechip enters a low-power consumption mode;
step D. Scanning reception of fault signals
Judging whether the fault information receiving and positioning device is connected to a network or not after the fault information receiving and positioning device is started, acquiring modified line data from a server to update a current database when the fault information receiving and positioning device is connected to the network, and drawing a line diagram; when judging that the network is not accessed, reading the data which is not updated from the ROM offline database, and drawing a line graph; meanwhile, after the fault information receiving and positioning device is started, the fault information receiving and positioning device is always in a scanning state until a wireless signal of an alarm fault indicator is scanned, at the moment, the second wireless module receives a wireless identification code sent by the fault indicator and converts received data into the identification code to be transmitted to the second singlechip; the fault information receiving and positioning device can receive and identify fault signals sent by a plurality of remote transmission fault indicators and judge the installation positions of the fault indicators through unique identification codes;
step E, judging fault signals and displaying fault positions
The database of the fault information receiving and positioning device pre-stores the installation information such as the installation position, the line name, the rod number, the phase sequence and the like of each remote transmission fault indicator, and the second singlechip judges and compares the received information with the line diagram and the installation information read from the database; after the identification codes are compared, the line position of the fault indicator giving an alarm is pushed out on the touch screen in a picture pushing and sound alarming mode, namely, the remote transmission fault indicator is marked on the line diagram in a flashing red dot mode, and meanwhile, the alarm is driven to give a sound alarm so as to remind line inspection staff, so that line inspection maintenance staff can quickly determine the fault position; the fault information receiving and positioning device sends back an inverse code of an identification number after receiving the signal and displaying the signal, and the remote transmission fault indicator resets and reenters the low power consumption mode after receiving the inverse code;
meanwhile, the fault information receiving and positioning device judges whether the fault property is a short circuit fault or a ground fault according to whether the signals sent by the received fault indicators are in-phase or out-of-phase, if the signals sent by the fault indicators are in-phase, the fault information receiving and positioning device judges that the fault information is a ground fault, and if the fault information is the signals sent by the fault indicators out-of-phase, the fault information receiving and positioning device judges that the fault information is a short circuit fault or a ground fault.
The beneficial effects of the invention are as follows:
1. the invention provides a set of distribution line fault positioning system, which comprises two parts: a remote transmission type fault indicator and a portable fault information receiving and positioning device. The remote transmission type fault indicator is used for detecting and sending fault signals, specifically, acts after detecting a line short-circuit fault or a ground fault and sends out a fault identification code through the wireless module; the portable fault information receiving and positioning device is used for receiving, judging and displaying fault signals, specifically, a wireless identification code sent by a fault indicator is received through a wireless module, the received information is compared with a circuit diagram and installation information in the second memory, the portable power distribution circuit fault positioning device can receive and recognize fault information of a plurality of groups of fault indicators, finally, an alarm is sent out in a picture pushing and sound alarm mode, and a circuit operation and maintenance personnel can quickly perform fault positioning according to the fault position information provided by the circuit operation and maintenance personnel to find out fault points. The invention can be applied to line fault finding of 35kV and below, can realize remote transmission of fault signals in a wireless mode, and realize visual display of fault positions in a picture form, and can realize transmission, display and judgment functions of line fault information of 35kV and below with lower cost, so that a maintainer can quickly find out a fault section, thereby greatly shortening accident line inspection time, improving fault detection efficiency and realizing quick recovery of power transmission.
2. According to the invention, the remote communication between the fault indicator and the fault positioning device is realized through an open and free LoRaWAN wireless protocol, an additional intermediate collecting unit is not required to be additionally arranged, the investment of an erection platform is reduced, and a GSM card is not required to be arranged, so that a large amount of flow cost is saved, and the production cost is greatly reduced. Under the condition that no relay is added, one-to-many control management between the fault positioning device and the fault indicator can be realized, the operation is convenient, the device is flexible and practical, the whole set of device is low in price, communication cost is not required, and the low-cost and practical portable power distribution line fault positioning device has a very wide application prospect.
3. The fault information receiving and positioning device is portable equipment, has a simple structure, is simple and practical, and is easy to carry when a line maintenance person arrives at a site to check the fault position of the line.
4. The fault information receiving and positioning device displays the position of a fault line in an alarm mode of picture pushing and sound reminding, and meanwhile, the fault information receiving and positioning device can judge whether a signal sent by a fault indicator is in-phase or out-of-phase so as to judge whether the fault property is a short circuit fault or a ground fault. The invention can rapidly detect the position and the type of the fault, has comprehensive functions and is simple and practical.
Drawings
FIG. 1 is a schematic diagram of a remote fault indicator;
FIG. 2 is a schematic diagram of a fault information receiving and locating device;
FIG. 3 is a circuit diagram of a remote fault indicator;
FIG. 4 is a flowchart of the remote fault indicator software;
FIG. 5 is a schematic diagram of a functional module of a fault information receiving and locating device;
FIG. 6 is a flow chart of fault information receiving and locating device software;
1. the remote transmission type fault indicator 2, the fault information receiving and positioning device 3, the shell 4, the rain umbrella skirt 5, the wire clamp 6, the turn-over window 7, the turn-over coil 8, the turn-over indication structure 9, the first antenna 10, the first singlechip 11, the fault detection module 12, the first wireless module 13, the first memory 14, the box 15, the second antenna 16, the switch 17, the charging port 18, the data interface 19, the touch screen 20, the second singlechip 21, the second wireless module 22, the second memory 23, the power supply device 24, the alarm 25.4G module.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
As shown in fig. 1-6, a portable power distribution line fault positioning device comprises a remote transmission type fault indicator 1 and a fault information receiving and positioning device 2, wherein the remote transmission type fault indicator 1 is used for detecting and sending fault signals and indicating fault positions, and the fault information receiving and positioning device 2 is used for receiving, judging and displaying the fault signals and further positioning the fault line positions.
As shown in fig. 1 and 3, the remote fault indicator 1 includes a housing 3, the housing 3 is in a cylindrical structure, a rain-proof umbrella skirt 4 is disposed on the outer surface of the housing 3 along the circumferential direction of the housing 3, a wire clamp 5 is disposed at the bottom of the housing 3, the wire clamp 5 is used for clamping the remote fault indicator 1 on a three-phase wire of a distribution line, the installation line is selected to be 35kV or below, the number of remote fault indicators 1 installed on each branch line can be one or more, and the greater the number of remote fault indicators 1, the higher the efficiency in fault detection and positioning is.
The upper portion of casing 3 has been seted up and has turned over tablet window 6, turn over tablet window 6 is used for as the window that turns over tablet indication structure and shows, be equipped with in the casing 3 and turn over tablet coil 7 and turn over tablet indication structure 8, turn over tablet indication structure 8 and regard as the fault indication tablet, can send the upset action for show white tablet when the circuit is normal, turn over in order to show the red tablet when the circuit breaks down, thereby be convenient for circuit inspection personnel observe, judge whether this department circuit breaks down according to the colour that turns over tablet indication structure 8 shows.
The outer surface of the shell 3 is also provided with a first antenna 9; the inside of the shell 3 is also provided with a first singlechip 10, a fault detection module 11 and a first wireless module 12. The fault detection module 11 is electrically connected with the card turning coil 7 through the first single chip microcomputer 10, the first single chip microcomputer 10 is electrically connected with the first wireless module 12, and the first wireless module 12 is electrically connected with the first antenna 9.
The fault detection module 11 is configured to detect whether a circuit has a fault, and generate a high level on the card flipping pin to trigger the first singlechip 10 to power up when a circuit short circuit fault or a ground fault signal is detected.
The first singlechip 10 is internally provided with a first memory 13, a 16-bit identification code is prestored in the first memory 13, the identification code is uniquely corresponding to a remote transmission fault indicator 1, the first singlechip 10 is used for receiving a power-on signal and controlling the turn-over indication structure 8 to turn over after power-on, and simultaneously, the unique identification code is sent to the first wireless module 12. The first singlechip 10 adopts a low-power STM8 singlechip, and can start a low-power mode under the conditions that line fault information is not detected, or the inverse code of an identification number sent by the fault information receiving and positioning device 2 is received, or manual reset is carried out, so that the service time is prolonged.
The first wireless module 12 has transmitting and receiving functions, and is configured to receive the unique identification code sent by the single chip microcomputer 10, and change the identification code into a wireless signal to send out through the lorewan protocol. The first antenna module 12 employs an SX1278 wireless module.
As shown in fig. 2 and 5, the fault information receiving and positioning device 2 is a portable mobile device, and includes a case 14, a second antenna 15 and a switch 16 are disposed on the upper surface of the case 14, a charging port 17 and a data interface 18 are disposed on the side of the case 14, and a touch screen 19 is disposed on the front side of the case 14. The second single-chip microcomputer 20, the second wireless module 21, the second memory 22, the power supply device 23, the alarm 24 and the 4G module 25 are arranged in the box 14, the second single-chip microcomputer 20 is respectively and electrically connected with the second wireless module 21, the second memory 22, the touch screen 19, the alarm 24 and the 4G module, the signal receiving and transmitting of the second wireless module 21 are controlled, the storage, the updating and the retrieval of data in the second memory 22 are controlled, the picture display of the touch screen 19 and the sending of alarm information of the alarm 24 are controlled, and the second wireless module 21, the second memory 22, the touch screen 19, the alarm 24, the second single-chip microcomputer 20 and the 4G module are respectively and electrically connected with the power supply device 23, and electric energy is acquired from the power supply device 23.
The second wireless module 21 has a transmitting and receiving function, and the first wireless module 12 and the second wireless module 21 perform wireless communication through the lorewan protocol. When the fault information receiving and positioning device 2 is turned on, it is always in a scanning state, and when the second wireless module 21 scans and receives the wireless signal sent by the first wireless module 12 of the alarm fault indicator, the received data is further converted into an identification code and sent to the second single-chip microcomputer 20.
When the remote-transmission fault indicators 1 are installed, the installation information needs to be recorded on site, and the installation information of each remote-transmission fault indicator 1 is pre-recorded into the database of the second memory 22, wherein the installation information comprises an installation position, a line name, a rod number and a phase sequence; the database of the second memory 22 also stores a circuit diagram of the distribution circuit in advance, and determines whether the circuit diagram is modified each time the network is connected, and further updates the circuit diagram in the database through the 4G module to meet the actual requirement.
The second singlechip 20 receives the identification code sent by the second wireless module 21, compares the received information with the pre-stored circuit diagram and installation information in the second memory 22 to obtain the position information of the remote transmission type fault indicator 1 sending out the circuit fault signal, reads the pre-stored circuit diagram in the database, pushes the circuit position of the remote transmission type fault indicator sending out the alarm out in the form of a picture and displays the picture on the touch screen 19, marks the remote transmission type fault indicator in the form of a flashing red dot on the circuit diagram, and drives the alarm to carry out sound alarm at the same time so as to remind line inspection staff, so that the line inspection maintenance staff can quickly determine the fault position.
In addition, the fault information receiving and positioning device 2 can also perform discrimination between a ground fault and a short circuit fault: the fault information receiving and positioning device 2 judges whether the fault property is a short circuit fault or a ground fault according to whether the signals sent by the received fault indicators are in-phase or out-of-phase, if the signals are signals sent by the in-phase, the fault information receiving and positioning device is judged to be the ground fault, and if the signals are signals sent by the out-of-phase, the fault information receiving and positioning device is judged to be the short circuit fault.
The fault information receiving and positioning device 2 can send a reset instruction at any time to remotely reset the remote transmission type fault indicator 1, and power is turned off, so that the electric quantity of the fault indicator is saved, and the service time and the service life of the remote transmission type fault indicator 1 are prolonged.
The fault information receiving and positioning device 2 can receive and identify the fault signals sent by the plurality of remote transmission fault indicators 1, and judge the installation positions of the fault indicators through the unique identification codes.
A method for locating faults of a distribution line, as shown in fig. 4 and 6, the method comprises the following steps:
step A, initializing.
At the beginning, the first single-chip microcomputer 10 of the remote transmission type fault indicator 1 is in a low power consumption mode, and meanwhile, the first single-chip microcomputer 10 can be made to enter the low power consumption mode in a manual reset mode.
And B, detecting a line fault signal.
The fault detection module 11 of the remote fault indicator 1 detects a fault signal to determine whether a line has a fault. When a short circuit or ground fault signal is acquired, a high level is generated on the card turning pin to trigger the first singlechip 10 to power on; and when no fault signal is acquired, the system is continuously in the low-power consumption mode.
And C, indicating the fault position of the line and sending fault signals.
After the first singlechip 10 is electrified, a card turning instruction is sent to the card turning coil 7, and the card turning indication structure 8 is controlled to act to give out field alarm information in a turning indication form; meanwhile, the first singlechip 10 sends the unique identification code stored in the first memory 13 in advance to the first wireless module 12, the first wireless module 12 changes the identification code into a wireless signal to send out through the LoRaWAN protocol, the wireless identification code signal is repeatedly sent after delay for t seconds, after each sending is finished, judgment is made whether the sending countdown n seconds are overtime, if not, the sending of the wireless signal is continued, if not, the first wireless module 12 is powered off to reset the coil, and the first singlechip 10 enters a low power consumption mode.
And D, scanning and receiving fault signals.
Judging whether the fault information receiving and positioning device 2 is connected to a network or not after the fault information receiving and positioning device is started, acquiring modified line data from a server to update a current database when the fault information receiving and positioning device is connected to the network, and drawing a line diagram; and when judging that the network is not accessed, reading the data which is not updated from the ROM offline database, and drawing a line graph. Meanwhile, after the fault information receiving and positioning device 2 is started, the fault information receiving and positioning device is always in a scanning state until the wireless signal of the alarm fault indicator is scanned, at this time, the second wireless module 21 receives the wireless identification code sent by the fault indicator, and converts the received data into the identification code and transmits the identification code to the second singlechip 20. The fault information receiving and positioning device 2 can receive and identify fault signals sent by a plurality of remote transmission fault indicators, and judge the installation positions of the fault indicators through unique identification codes.
And E, judging fault signals and displaying fault positions.
The fault information receiving and positioning device 2 has pre-stored installation information such as installation position, line name, rod number, phase sequence and the like of each remote transmission fault indicator 1 in a database, and the singlechip can judge and compare the received information with the line diagram and the installation information read from the database; after the identification codes are compared, the line position of the fault indicator giving an alarm is pushed out on the touch screen in the form of picture pushing and sound alarming, namely the remote transmission fault indicator 1 is marked on the line diagram in the form of flashing red dots, and meanwhile, the alarm 24 is driven to give a sound alarm so as to remind line inspection staff, so that line inspection maintenance staff can quickly determine the fault position. The fault information receiving and positioning device 2 sends back an inverse code of an identification number after receiving a signal and displaying the signal, and the remote transmission fault indicator 1 resets and reenters a low power consumption mode after receiving the inverse code;
the fault information receiving and positioning device 2 may further determine whether the fault property is a short circuit fault or a ground fault according to whether the received signal sent by the fault indicator is in-phase or out-of-phase, if the received signal is a signal sent by the in-phase, the fault information receiving and positioning device determines that the fault information is a ground fault, and if the received signal is a signal sent by the out-of-phase, the fault information receiving and positioning device determines that the fault information is a short circuit fault.
Claims (7)
1. A distribution line fault positioning method is characterized in that:
the portable distribution line fault locating device includes: a remote transmission type fault indicator (1) and a fault information receiving and positioning device (2); the remote transmission type fault indicator (1) is used for detecting and sending fault signals and indicating fault positions; the fault information receiving and positioning device (2) is portable mobile equipment and is used for receiving and judging fault signals and further positioning and displaying the positions of the lines with faults in the form of a line graph; the remote transmission type fault indicator (1) and the fault information receiving and positioning device (2) communicate and are networked through the LoRaWan protocol;
the remote transmission type fault indicator (1) comprises a shell (3), a wire clamp (5) is arranged at the bottom of the shell (3), a card turning window (6) is formed in the upper portion of the shell (3), a card turning coil (7) and a card turning indication structure (8) are arranged in the shell (3), and a first antenna (9) is arranged on the outer surface of the shell (3); the inside of the shell (3) is also provided with a first singlechip (10), a fault detection module (11) and a first wireless module (12); a first memory (13) is arranged in the first singlechip (10);
the fault information receiving and positioning device (2) comprises a second wireless module (21), a second single-chip microcomputer (20), a second memory (22), an alarm (24), a touch screen (19), a power supply device (23) and a second antenna (15), wherein the second single-chip microcomputer (20) is respectively and electrically connected with the second wireless module (21), the second memory (22), the touch screen (19) and the alarm (24), and the second wireless module (21), the second memory (22), the touch screen (19), the alarm (24) and the second single-chip microcomputer (20) are respectively and electrically connected with the power supply device (23);
the distribution line fault positioning method comprises the following steps:
step A. Initializing
When the remote transmission type fault indicator (1) is started, the first singlechip (10) is in a low-power-consumption mode, and meanwhile, the first singlechip (10) can enter the low-power-consumption mode in a manual reset mode;
step B. Detection of line fault signal
The fault detection module (11) of the remote transmission fault indicator (1) detects a fault signal to judge whether a circuit is faulty or not, and when a short circuit or grounding fault signal is acquired, a high level is generated on the card turning pin to trigger the first singlechip (10) to power on; when no fault signal is acquired, the system is continuously in a low power consumption mode;
step C. Indication of line fault location and transmission of fault signal
After the first singlechip (10) is electrified, a card turning instruction is sent to the card turning coil (7), and the card turning indication structure (8) is controlled to act to give out field alarm information in a turning indication form; meanwhile, the first singlechip (10) sends a unique identification code stored in the first memory (13) in advance to the first wireless module (12), the first wireless module (12) has transmitting and receiving functions, is used for receiving the unique identification code sent by the singlechip (10), changing the identification code into a wireless signal to be sent out through the LoRaWAN protocol, repeatedly sending the wireless identification code signal after delaying for t seconds, judging whether the sending countdown is overtime or not after each sending is finished, continuing to send the wireless signal if the sending countdown is not overtime, and enabling the first singlechip (10) to enter a low-power consumption mode when the sending is overtime, wherein the first wireless module (12) is powered off to reset the coil;
step D. Scanning reception of fault signals
Judging whether the fault information receiving and positioning device (2) is connected to a network or not after the fault information receiving and positioning device is started, acquiring modified line data from a server to update a current database when the fault information receiving and positioning device is connected to the network, and drawing a line diagram; when judging that the network is not accessed, reading the data which is not updated from the ROM offline database, and drawing a line graph; meanwhile, after the fault information receiving and positioning device (2) is started, the fault information receiving and positioning device is always in a scanning state until a wireless signal of an alarm fault indicator is scanned, at the moment, a second wireless module (21) receives a wireless identification code sent by the fault indicator and converts received data into the identification code to be transmitted to a second singlechip (20); the fault information receiving and positioning device (2) can receive and identify fault signals sent by a plurality of remote transmission fault indicators and judge the installation positions of the fault indicators through unique identification codes;
step E, judging fault signals and displaying fault positions
The database of the fault information receiving and positioning device (2) pre-stores the installation information of the installation position, the line name, the rod number and the phase sequence of each remote transmission fault indicator (1), and the second singlechip (20) can judge and compare the received information with the line diagram and the installation information read from the database; after the identification codes are compared, the line position of the fault indicator giving an alarm is pushed out on the touch screen in a picture pushing and sound alarming mode, namely, the remote transmission fault indicator (1) is marked on the line diagram in a flashing red point mode, and meanwhile, the alarm (24) is driven to give a sound alarm so as to remind line inspection staff, so that the line inspection maintenance staff can quickly determine the fault position; the fault information receiving and positioning device (2) can send back an inverse code of an identification number after receiving a signal and displaying the signal, and the remote transmission fault indicator (1) can reset to enter a low power consumption mode again after receiving the inverse code;
meanwhile, the fault information receiving and positioning device (2) can judge the ground fault and the short circuit fault: the fault information receiving and positioning device (2) judges whether the fault property is a short circuit fault or a ground fault according to whether the signals sent by the received fault indicators are in-phase or out-of-phase, and judges that the fault property is the ground fault when the signals sent by the fault indicators are in-phase, and judges that the fault property is the short circuit fault when the signals sent by the fault indicators are out-of-phase.
2. The portable power distribution line fault location method as claimed in claim 1, wherein: the remote transmission type fault indicator (1) is used for detecting whether a line has faults or not, and when a line fault signal is detected, an identification code is sent to the fault information receiving and positioning device (2), and the identification code uniquely corresponds to one remote transmission type fault indicator (1).
3. The portable power distribution line fault location method as claimed in claim 1, wherein:
the second memory (22) is provided with installation information of each remote transmission type fault indicator (1) in advance in a database, and the installation information comprises an installation position, a line name, a rod number and a phase sequence; a circuit diagram of the distribution circuit is also prestored;
the second singlechip (20) is used for controlling signal receiving and transmitting of the second wireless module (21), controlling storage, updating and retrieval of data in the second memory (22), controlling picture display of the touch screen (19) and sending of alarm information of the alarm (24), specifically, is used for receiving an identification code sent by the second wireless module (21), comparing the received information with a circuit diagram and installation information pre-stored in the second memory (22), reading a circuit diagram pre-stored in a database, pushing out a circuit position where the remote transmission type fault indicator (1) sending an alarm is located in a picture form on the touch screen (19), marking the remote transmission type fault indicator (1) in a flashing red spot form on the circuit diagram, and simultaneously driving the alarm (24) to carry out sound alarm so as to remind line inspection staff.
4. The portable power distribution line fault location method as claimed in claim 1, wherein: the fault information receiving and positioning device (2) further comprises a 4G module (25) for updating a pre-stored circuit diagram in the second memory (22) each time the network is connected.
5. The portable power distribution line fault location method as claimed in claim 1, wherein: the fault information receiving and positioning device (2) can send out a reset instruction at any time to remotely reset the remote transmission type fault indicator (1).
6. The portable power distribution line fault location method as claimed in claim 1, wherein: the fault information receiving and positioning device (2) comprises a box body (14), and a switch (16), a charging port (17) and a data interface (18) are arranged on the surface of the box body (14).
7. The portable power distribution line fault location method as claimed in claim 1, wherein:
the fault detection module (11) is electrically connected with the card turning coil (7) through the first single chip microcomputer (10), the first single chip microcomputer (10) is electrically connected with the first wireless module (12), and the first wireless module (12) is electrically connected with the first antenna (9);
the identification code is stored in the first memory (13) in advance, the identification code is uniquely corresponding to a remote transmission type fault indicator (1), the first singlechip (10) is used for receiving a power-on signal and controlling the turn-over indication structure (8) to turn over after power-on, and meanwhile, the unique identification code is sent to the first wireless module (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810215300.XA CN108375716B (en) | 2018-03-15 | 2018-03-15 | Portable distribution line fault positioning device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810215300.XA CN108375716B (en) | 2018-03-15 | 2018-03-15 | Portable distribution line fault positioning device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108375716A CN108375716A (en) | 2018-08-07 |
| CN108375716B true CN108375716B (en) | 2024-03-15 |
Family
ID=63018801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810215300.XA Active CN108375716B (en) | 2018-03-15 | 2018-03-15 | Portable distribution line fault positioning device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108375716B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109873499B (en) * | 2019-03-22 | 2020-10-27 | 北京智芯微电子科技有限公司 | Intelligent power distribution station management terminal |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000152501A (en) * | 1998-11-12 | 2000-05-30 | Nippon Kouatsu Electric Co | Transmission and distribution line diagram information preparing system and failure point orienting system |
| CN201281743Y (en) * | 2008-09-01 | 2009-07-29 | 江苏银网电气股份有限公司 | System for monitoring network distribution line fault |
| CN201293819Y (en) * | 2008-10-24 | 2009-08-19 | 北京清畅电力技术股份有限公司 | Wireless transmission electric force circuit fault indicator |
| CN201393006Y (en) * | 2009-03-31 | 2010-01-27 | 北京合纵实科电力科技有限公司 | Wireless panel type fault indication device |
| CN201788253U (en) * | 2010-08-19 | 2011-04-06 | 河南省电力公司郑州供电公司 | Fault location system for distribution lines |
| CN204967424U (en) * | 2015-09-14 | 2016-01-13 | 河北卓智电子技术有限公司 | A fault indicator |
| CN206657077U (en) * | 2017-04-26 | 2017-11-21 | 国网山东省电力公司齐河县供电公司 | Intelligent trouble indicator and instruction system |
| CN107390095A (en) * | 2017-06-29 | 2017-11-24 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of parallel connection gaps discharge monitoring device |
| CN208334541U (en) * | 2018-03-15 | 2019-01-04 | 山东广域科技有限责任公司 | A kind of portable power distribution line fault positioner |
-
2018
- 2018-03-15 CN CN201810215300.XA patent/CN108375716B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000152501A (en) * | 1998-11-12 | 2000-05-30 | Nippon Kouatsu Electric Co | Transmission and distribution line diagram information preparing system and failure point orienting system |
| CN201281743Y (en) * | 2008-09-01 | 2009-07-29 | 江苏银网电气股份有限公司 | System for monitoring network distribution line fault |
| CN201293819Y (en) * | 2008-10-24 | 2009-08-19 | 北京清畅电力技术股份有限公司 | Wireless transmission electric force circuit fault indicator |
| CN201393006Y (en) * | 2009-03-31 | 2010-01-27 | 北京合纵实科电力科技有限公司 | Wireless panel type fault indication device |
| CN201788253U (en) * | 2010-08-19 | 2011-04-06 | 河南省电力公司郑州供电公司 | Fault location system for distribution lines |
| CN204967424U (en) * | 2015-09-14 | 2016-01-13 | 河北卓智电子技术有限公司 | A fault indicator |
| CN206657077U (en) * | 2017-04-26 | 2017-11-21 | 国网山东省电力公司齐河县供电公司 | Intelligent trouble indicator and instruction system |
| CN107390095A (en) * | 2017-06-29 | 2017-11-24 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of parallel connection gaps discharge monitoring device |
| CN208334541U (en) * | 2018-03-15 | 2019-01-04 | 山东广域科技有限责任公司 | A kind of portable power distribution line fault positioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108375716A (en) | 2018-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7369056B2 (en) | Photoelectric controller for electric street lighting | |
| CN109407128A (en) | A kind of electric power line pole tower system for monitoring displacement and method | |
| CN111459066A (en) | Underground pipe network monitoring system of urban lighting facility | |
| CN106324442B (en) | A kind of power cable fault monitoring platform | |
| CN107128331B (en) | A kind of Portable locomotive signal mobile unit is in vehicle detection method | |
| CN109410525A (en) | A kind of community in urban areas flood monitor device based on power distribution network | |
| CN107037318A (en) | A kind of power cable fault locating platform | |
| CN104505948A (en) | Overhead high voltage line fault alarm information system based on android | |
| CN108375716B (en) | Portable distribution line fault positioning device and method | |
| CN111624394A (en) | Intelligent short circuit grounding monitoring device and use method thereof | |
| CN202013401U (en) | Line fault detection system and node fault detection device | |
| CN208334541U (en) | A kind of portable power distribution line fault positioner | |
| CN208422064U (en) | A kind of practical landslide prior-warning device | |
| CN104483589B (en) | A kind of four whip graft grounding wire detection devices and its detection method | |
| CN110031727B (en) | Fault monitoring system of insulator and intelligent operation and maintenance platform for insulator fault | |
| CN210005038U (en) | municipal facilities intelligent management system | |
| CN112308248A (en) | Monitoring and managing system and method for power transmission line tower | |
| JPH0943010A (en) | Sensing system | |
| CN110702161A (en) | Device and method for monitoring and positioning dropping of pins of insulators of transmission towers | |
| CN213023314U (en) | Intelligent short circuit grounding monitoring device | |
| CN104267307B (en) | Remote grounding device and equipotential connection fault monitoring system | |
| CN209496133U (en) | Detection device of electric energy meter, system and power grid maintenance equipment | |
| CN208443959U (en) | Intelligent network distribution grounding wire device and intelligent network distribution ground connection measuring system | |
| CN113310524A (en) | Transformer substation direct current system on-line monitoring system based on 5G communication technology | |
| CN208299544U (en) | Data acquisition device and solar power station monitoring system for solar power station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Jingquan Inventor after: Miao Tenghou Inventor before: Liu Jun Inventor before: Du Zhengwang Inventor before: Wang Jingquan Inventor before: Li Laihong Inventor before: Miao Tenghou Inventor before: Zhang Li Inventor before: Zhang Weijiang Inventor before: Wang Dianchen Inventor before: Liu Qingbao |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |