CN107728003B - Ground wire state real-time monitoring device and control method - Google Patents

Ground wire state real-time monitoring device and control method Download PDF

Info

Publication number
CN107728003B
CN107728003B CN201710807673.1A CN201710807673A CN107728003B CN 107728003 B CN107728003 B CN 107728003B CN 201710807673 A CN201710807673 A CN 201710807673A CN 107728003 B CN107728003 B CN 107728003B
Authority
CN
China
Prior art keywords
controller
shell
time period
circuit
induction coil
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
Application number
CN201710807673.1A
Other languages
Chinese (zh)
Other versions
CN107728003A (en
Inventor
缪寿成
方玉群
张帆
卢海权
郑宏伟
潜力群
祝强
蒋俊
赵健
朱凯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bright Power Construction Co Ltd Of Dongyang City
State Grid Corp of China SGCC
Jinhua Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Dongyang Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
Bright Power Construction Co Ltd Of Dongyang City
State Grid Corp of China SGCC
Jinhua Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Dongyang Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bright Power Construction Co Ltd Of Dongyang City, State Grid Corp of China SGCC, Jinhua Power Supply Co of State Grid Zhejiang Electric Power Co Ltd, Dongyang Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical Bright Power Construction Co Ltd Of Dongyang City
Priority to CN201710807673.1A priority Critical patent/CN107728003B/en
Publication of CN107728003A publication Critical patent/CN107728003A/en
Application granted granted Critical
Publication of CN107728003B publication Critical patent/CN107728003B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08Locating faults in cables, transmission lines, or networks
    • G01R31/081Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/085Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04Analysing solids
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/048Monitoring; Safety

Abstract

The invention discloses a ground wire state real-time monitoring device and a control method, wherein the ground wire state real-time monitoring device comprises a first controller, a first inner shell, a second inner shell, a current measuring circuit, a Beidou communication module and a first induction coil which are arranged on the first inner shell, a power supply module and a second induction coil which are arranged on the second inner shell, a plurality of sealing rings, an ultrasonic sensor and an electric control lock which are arranged between the first inner shell and the second inner shell; first induction coil and second induction coil all are connected with the current measurement circuit electricity, and electric control lock, ultrasonic sensor, current measurement circuit, big dipper communication module and power module all are connected with first controller electricity. The invention has the characteristics of facilitating the working personnel to master the state of the grounding wire in real time and saving the labor cost.

Description

Ground wire state real-time monitoring device and control method
Technical Field
The invention relates to the technical field of high-voltage transmission line maintenance equipment, in particular to a ground wire state real-time monitoring device and a control method, which are convenient for workers to master the state of a ground wire in real time and can save labor cost.
Background
At present, when a certain outage line needs to be overhauled and constructed, the grounding wire needs to be hung, and the grounding wire is known as the lifeline of an electric power worker. In practical application, due to the reasons of wire vibration and the like, the ground wire may be hung or dropped, so that the protection of operators is lost, and personal electric shock accidents are caused. And the passing geographical position of the transmission line is complex, and the transmission line is regulated according to the national grid company electric power safety work regulations: the integrity of safety measures such as the grounding wire and the like should be checked before work is discontinuously recovered in daytime, but whether the grounding wire is reliably connected is difficult to confirm only by naked eyes, and manpower and material resources are greatly wasted. Therefore, it is necessary to design a monitoring device capable of automatically monitoring the state of the grounding wire.
Disclosure of Invention
The invention provides a ground wire state real-time monitoring device and a control method, which are convenient for workers to master the state of a ground wire in real time and can save labor cost, and aims to solve the problem that a device capable of monitoring the hanging state of the ground wire in real time is lacked when the ground wire needs to be hung during maintenance and construction operation of a shutdown circuit in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a real-time monitoring device for the state of a grounding wire comprises a first controller, a first inner shell, a second inner shell, a current measuring circuit, a Beidou communication module and a first induction coil which are arranged on the first inner shell, a power module and a second induction coil which are arranged on the second inner shell, and a plurality of sealing rings, ultrasonic sensors and electric control locks which are arranged between the first inner shell and the second inner shell; first induction coil and second induction coil all are connected with the current measurement circuit electricity, and electric control lock, ultrasonic sensor, current measurement circuit, big dipper communication module and power module all are connected with first controller electricity.
The invention comprises four modules, namely an induction coil, a power supply module, a Beidou communication module and a current measuring circuit. The ground wire penetrates through the induction coil, when current passes through the ground wire, induced current can be generated in the induction coil, an electric signal in the induction coil is converted into a digital signal through the current measuring circuit, then the digital signal is transmitted to the Beidou communication module to be transmitted to the remote server side, and the handheld terminal equipment can receive and check state information of the ground wire from the remote server side. The invention has the characteristics of facilitating the working personnel to master the state of the grounding wire in real time and saving the labor cost.
Preferably, the system also comprises a remote server end and a handheld terminal device, wherein the handheld terminal device comprises a second controller, a wireless communication circuit and an alarm circuit, the wireless communication circuit and the alarm circuit are electrically connected with the second controller, the remote server end is in wireless connection with the Beidou communication module through a Beidou communication satellite, and the remote server end is in wireless connection with the handheld terminal device. The remote server and the handheld terminal device can facilitate the realization of remote monitoring by workers.
Preferably, the LED lamp further comprises a first shell, a second shell, a temperature sensor, a radiator, a switch circuit and an LED lamp, wherein the switch circuit, the temperature sensor and the radiator are all electrically connected with the first controller, and the switch circuit is electrically connected with the LED lamp.
Preferably, the temperature sensor, the radiator, the switch circuit, the LED lamp, the electric control lock, the ultrasonic sensor, the first controller, the first inner shell, the second inner shell, the current measuring circuit, the Beidou communication module, the first induction coil, the power module and the second induction coil are all located between the first outer shell and the second outer shell, and the first outer shell and the second outer shell are fixedly connected through bolts. The first shell and the second shell play a role in protecting each internal part
A control method of a ground wire state real-time monitoring device comprises the following steps:
(5-1) nondestructive inspection control of copper cord in ground wire
(5-1-1) when the worker passes through the annealed copper wire of the grounding wire from the induction coil of the device to complete hanging connection and simultaneously induction current is generated in the induction coil, the ultrasonic sensor starts to work under the control of the first controller, and the ultrasonic sensor sends ultrasonic waves to the annealed copper wire of the grounding wire;
(5-1-2) when the ultrasonic sensor receives the reflected ultrasonic waves, the first controller controls the switch circuit to be switched on, the LED emits light, the defect of the internal structure of the soft copper wire material of the grounding wire in use is indicated, a new grounding wire needs to be replaced, when the ultrasonic sensor does not receive the reflected ultrasonic waves, the switch circuit is controlled to be switched off, the LED does not emit light, the normal internal structure of the soft copper wire material of the grounding wire in use is indicated, the grounding wire can be continuously used, and meanwhile, under the control of the first controller, the electric control lock is closed, so that the device is firmly installed on the grounding wire;
(5-2) measurement control of induced Current
(5-2-1) when the grounding wire is hooked and an induction coil of the real-time grounding wire state monitoring device generates induction current, the first controller controls the current measuring circuit to start working, and at the moment, the current measuring circuit detects 1 time of data every time T1 in a time period when the front and back lengths are L; the first controller obtains n detection values of the current measurement circuit in the time period a and the time period B, where the two time periods are the time period a and the time period B, respectively, and L is n × T1;
(5-2-2) the first controller compares n detection values of the obtained current measurement circuit in the time period A and the time period B with a minimum threshold value of current passing through a grounding wire arranged in the first controller when the current measurement circuit is normally connected, and wirelessly sends the n detection values of the current measurement circuit in the time period A and the time period B to the handheld terminal equipment through a Beidou communication module and a remote server end;
(5-2-3) calculating the similarity of the detection values respectively obtained by the current measurement circuit in the time period A and the time period B;
(5-2-4) the first controller judges the similarity of the detection values acquired by the current measurement circuit, and when the similarity is greater than or equal to 0.9, the n detection values of the current measurement circuit in the time period A and the time period B are saved for subsequent calling; and when the similarity is less than 0.9, the first controller controls the current measuring circuit to sequentially repeat the step (5-2-1), the step (5-2-2) and the step (5-2-3) until the similarity of the acquired detection value is greater than or equal to 0.9.
Preferably, the step (5-2-3) further comprises the steps of:
setting each detection value of the time period A as xiEach detection value of the period B is yi,i=1,2,…,n;
Using formulasCalculating the similarity of the detection values obtained by the current measurement circuit for two time periods, wherein,is the average value of all the detected values of the current measuring circuit in the time period a,is the average value of all the detection values of the current measuring circuit in the time period B.
Preferably, the step (5-2-2) further comprises the steps of:
when n detection values of the obtained current measurement circuit in the time period A or the time period B are smaller than the minimum threshold value of the current passing through the first controller when a grounding wire arranged in the first controller is normally hooked, the first controller sends alarm information to the handheld terminal device through the Beidou communication module and the remote server, and after the handheld terminal device receives the information through the wireless communication circuit, the second controller in the handheld terminal device controls the alarm circuit to make a sound;
when all n detection values of the obtained current measurement circuit in the time period A and the time period B are larger than or equal to the minimum threshold value of the current passing through the first controller when the grounding wire in the first controller is normally hung, the first controller does not send alarm information.
Preferably, the control method of the device for monitoring the state of the grounding wire in real time further comprises the following steps:
(8-1) control of Heat dissipation of the device
The temperature sensor detects the temperature of the internal environment of the shell in real time and transmits data to the first controller in real time, the first controller is internally provided with a maximum value of the internal environment temperature, and when the temperature sensor continuously detects that the internal environment temperature of the device is greater than the maximum value of the internal environment temperature within T time, the first controller controls the radiator to start working;
when the temperature sensor continuously detects that the internal environment temperature of the device is less than the maximum internal environment temperature value at which the device can normally work within 3T, the first controller controls the radiator to stop working.
Therefore, the invention has the following beneficial effects: (1) by adopting a Beidou communication mode, the problem that the mobile data of the line towers in mountains and unmanned areas cannot be transmitted is solved, and the reliable receiving of the current monitoring data of the grounding wire is ensured; (2) the worker can conveniently master the state of the grounding wire in real time; (3) the labor cost is saved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a functional block diagram of the present invention;
fig. 3 is a flow chart of the present invention.
In the figure: first inner shell 1, second inner shell 2, current measurement circuit 3, big dipper communication module 4, first induction coil 5, power module 6, second induction coil 7, sealing washer 8, first shell 9, second shell 10, remote server end 11, handheld terminal equipment 12, alarm circuit 13, first controller 14, ultrasonic sensor 15, automatically controlled lock 16, temperature sensor 17, radiator 18, switch circuit 19, LED lamp 20, second controller 21, wireless communication circuit 22.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings:
the device for monitoring the state of the ground wire in real time as shown in fig. 1 comprises a first controller 14, a first inner shell 1, a second inner shell 2, a current measuring circuit 3, a Beidou communication module 4 and a first induction coil 5 which are arranged on the first inner shell, a power module 6 and a second induction coil 7 which are arranged on the second inner shell, four sealing rings 8, an ultrasonic sensor 15 and an electric control lock 16 which are arranged between the first inner shell and the second inner shell; first induction coil and second induction coil all are connected with the current measurement circuit electricity, and electric control lock, ultrasonic sensor, current measurement circuit, big dipper communication module and power module all are connected with first controller electricity. The invention also comprises a first outer shell 9 and a second outer shell 10, wherein the electric control lock, the ultrasonic sensor, the first controller, the first inner shell, the second inner shell, the current measuring circuit, the Beidou communication module, the first induction coil, the power supply module and the second induction coil are arranged between the first outer shell and the second outer shell, and the first outer shell and the second outer shell are fixedly connected through bolts. Both ends of the first shell and both ends of the second shell are provided with through holes, so that the grounding wire can penetrate through the first induction coil and the second induction coil in the device. The first induction coil and the second induction coil are combined together to form a complete induction coil.
As shown in fig. 2, the ground wire state real-time monitoring device further includes a temperature sensor 17, a heat sink 18, a switch circuit 19 and an LED lamp 20, wherein the switch circuit, the temperature sensor and the heat sink are all electrically connected to the first controller, and the switch circuit is electrically connected to the LED lamp. The invention also comprises a remote server end 11 and a handheld terminal device 12, wherein the handheld terminal device comprises a second controller 21, a wireless communication circuit 22 and an alarm circuit 13, the wireless communication circuit and the alarm circuit are electrically connected with the second controller, the remote server end and the Beidou communication module are in wireless connection through a Beidou communication satellite, and the remote server end is in wireless connection with the handheld terminal device. The remote server and the handheld terminal device can facilitate the realization of remote monitoring by workers.
The temperature sensor, the heat sink, the switching circuit and the LED lamp are also located between the first housing and the second housing.
As shown in fig. 3, a method for controlling a ground wire state real-time monitoring device includes the following steps:
step 100, nondestructive inspection detection control of copper flexible wire in grounding wire
110, when a worker passes through the annealed copper wire of the grounding wire from the induction coil of the device to finish hooking and an induction current is generated in the induction coil, the ultrasonic sensor starts to work under the control of the first controller, and the ultrasonic sensor sends ultrasonic waves to the annealed copper wire of the grounding wire;
step 120, when the ultrasonic sensor receives the reflected ultrasonic wave, the first controller controls the switch circuit to be switched on, and the LED emits light, which indicates that the internal structure of the soft copper wire material of the grounding wire in use is defective, and a new grounding wire needs to be replaced;
in a uniform material, the existence of defects causes discontinuity of the material, the discontinuity often causes inconsistency of acoustic impedance, the reflection theorem shows that ultrasonic waves are reflected on an interface of two media with different acoustic impedances, the magnitude of the reflected energy is related to the difference of the acoustic impedances of the media on two sides of the interface and the orientation and the magnitude of the interface, and an ultrasonic sensor is used for nondestructive flaw detection, so that the characteristics are utilized.
When no induction current exists in the induction coil, the first controller controls the electric control lock to be opened.
Step 200, measurement control of the induced current
Step 210, when the grounding wire is hooked and an induction coil of the real-time grounding wire state monitoring device generates induction current, the first controller controls the current measuring circuit to start working, and at the moment, the current measuring circuit detects data for 1 time every 1 second in a time period of 2 minutes in front and back; wherein, the two time periods before and after are respectively a time period A and a time period B, and the first controller obtains 120 detection values of the current measurement circuit in the time period A and the time period B;
step 220, the first controller compares 120 detection values of the obtained current measurement circuit in the time period A and the time period B with a minimum threshold value I of current passing through a grounding wire arranged in the first controller when the grounding wire is normally connected, and wirelessly sends the 120 detection values of the current measurement circuit in the time period A and the time period B to the handheld terminal device through the Beidou communication module and the remote server end;
when 120 detection values of the obtained current measurement circuit in a time period A or a time period B are smaller than a minimum threshold value I of current passing through a first controller when a grounding wire arranged in the first controller is normally hooked, the first controller sends alarm information to the handheld terminal device through the Beidou communication module and the remote server, and after the handheld terminal device receives the information through the wireless communication circuit, a second controller in the handheld terminal device controls the alarm circuit to make a sound;
when 120 detection values of the obtained current measurement circuit in the time period A and the time period B are respectively greater than or equal to a minimum threshold value I of current passing through the first controller when a grounding wire in the first controller is normally hung, the first controller does not send alarm information;
step 230, calculating the similarity of the detection values respectively obtained by the current measurement circuit in the time period A and the time period B;
using formulasCalculating the similarity of the detection values respectively obtained by the current measurement circuit in the time period A and the time period B, wherein,for all values detected by the current measuring circuit during time period AThe average value of the values is calculated,is the average value of all detection values of the current measurement circuit in the time period B;
step 240, the first controller judges the similarity of the detection values obtained by the current measurement circuit, and when the similarity is greater than or equal to 0.9, the first controller stores 120 detection values of the current measurement circuit in the time period A and the time period B for subsequent calling; when the similarity is smaller than 0.9, the first controller controls the current measuring circuit to sequentially repeat the step 210, the step 220 and the step 230 until the similarity of the acquired detection value is larger than or equal to 0.9.
Step 300, control of device heat dissipation
The temperature sensor detects the temperature of the internal environment of the shell in real time and transmits data to the first controller in real time, the first controller is internally provided with a maximum value of the internal environment temperature, and when the temperature sensor continuously detects that the internal environment temperature of the device is greater than the maximum value of the internal environment temperature within 1 minute, the first controller controls the radiator to start working;
when the temperature sensor continuously detects that the internal environment temperature of the device is less than the maximum internal environment temperature value at which the device can normally work within 3 minutes, the first controller controls the radiator to stop working.
It should be understood that this example is for illustrative purposes only and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

Claims (6)

1. A control method of a ground wire state real-time monitoring device is characterized by comprising a first controller (14), a first inner shell (1), a second inner shell (2), a current measuring circuit (3), a Beidou communication module (4) and a first induction coil (5) which are arranged on the first inner shell, a power supply module (6) and a second induction coil (7) which are arranged on the second inner shell, a plurality of sealing rings (8), an ultrasonic sensor (15) and an electric control lock (16) which are arranged between the first inner shell and the second inner shell; the first induction coil and the second induction coil are electrically connected with the current measuring circuit, and the electric control lock, the ultrasonic sensor, the current measuring circuit, the Beidou communication module and the power supply module are electrically connected with the first controller;
the method comprises the following steps:
(1-1) nondestructive inspection control of copper flexible wire in ground wire
(1-1-1) when an operator passes through the annealed copper wire of the grounding wire from the induction coil of the device to finish hooking and an induction current is generated in the induction coil, the ultrasonic sensor starts to work under the control of the first controller, and the ultrasonic sensor sends ultrasonic waves to the annealed copper wire of the grounding wire;
(1-1-2) when the ultrasonic sensor receives the reflected ultrasonic waves, the first controller controls the switch circuit to be switched on, the LED emits light, the defect of the internal structure of the soft copper wire material of the grounding wire in use is indicated, a new grounding wire needs to be replaced, when the ultrasonic sensor does not receive the reflected ultrasonic waves, the switch circuit is controlled to be switched off, the LED does not emit light, the normal internal structure of the soft copper wire material of the grounding wire in use is indicated, the grounding wire can be continuously used, and meanwhile, under the control of the first controller, the electric control lock is closed, so that the device is firmly installed on the grounding wire;
(1-2) measurement control of induced Current
(1-2-1) when the grounding wire is hooked and an induction coil of the grounding wire state real-time monitoring device generates induction current, the first controller controls the current measuring circuit to start working, and at the moment, the current measuring circuit detects 1 time of data every time T1 in a time period when the front length and the rear length are L; the first controller obtains n detection values of the current measurement circuit in the time period a and the time period B, where the two time periods are the time period a and the time period B, respectively, and L is n × T1;
(1-2-2) the first controller compares n detection values of the obtained current measurement circuit in the time period A and the time period B with a minimum threshold value of current passing through a grounding wire arranged in the first controller when the current measurement circuit is normally connected, and wirelessly sends the n detection values of the current measurement circuit in the time period A and the time period B to the handheld terminal equipment through a Beidou communication module and a remote server end;
(1-2-3) calculating the similarity of detection values respectively obtained by the current measurement circuit in the time period A and the time period B;
(1-2-4) the first controller judges the similarity of the detection values acquired by the current measurement circuit, and when the similarity is greater than or equal to 0.9, the n detection values of the current measurement circuit in the time period A and the time period B are saved for subsequent calling; and when the similarity is less than 0.9, the first controller controls the current measuring circuit to sequentially repeat the step (1-2-1), the step (1-2-2) and the step (1-2-3) until the similarity of the acquired detection value is greater than or equal to 0.9.
2. The control method of the ground wire state real-time monitoring device according to claim 1, characterized by further comprising a remote server end (11) and a handheld terminal device (12), wherein the handheld terminal device comprises a second controller (21), a wireless communication circuit (22) and an alarm circuit (13), the wireless communication circuit and the alarm circuit are electrically connected with the second controller, the remote server end and the Beidou communication module are in wireless connection through a Beidou communication satellite, and the remote server end and the handheld terminal device are in wireless connection.
3. The control method of the ground wire state real-time monitoring device according to claim 1, characterized by further comprising a first shell (9), a second shell (10), a temperature sensor (17), a heat sink (18), a switch circuit (19) and an LED lamp (20), wherein the switch circuit, the temperature sensor and the heat sink are all electrically connected with the first controller, and the switch circuit is electrically connected with the LED lamp.
4. The control method of the ground wire state real-time monitoring device according to claim 3, wherein the temperature sensor, the radiator, the switching circuit, the LED lamp, the electric control lock, the ultrasonic sensor, the first controller, the first inner shell, the second inner shell, the current measuring circuit, the Beidou communication module, the first induction coil, the power supply module and the second induction coil are all located between the first outer shell and the second outer shell, and the first outer shell and the second outer shell are fixedly connected through bolts.
5. The control method of the ground wire state real-time monitoring device according to claim 1, wherein the step (1-2-2) further comprises the steps of:
when n detection values of the obtained current measurement circuit in the time period A or the time period B are smaller than the minimum threshold value of the current passing through the first controller when a grounding wire arranged in the first controller is normally hooked, the first controller sends alarm information to the handheld terminal device through the Beidou communication module and the remote server, and after the handheld terminal device receives the information through the wireless communication circuit, the second controller in the handheld terminal device controls the alarm circuit to make a sound;
when all n detection values of the obtained current measurement circuit in the time period A and the time period B are larger than or equal to the minimum threshold value of the current passing through the first controller when the grounding wire in the first controller is normally hung, the first controller does not send alarm information.
6. The control method of the ground wire state real-time monitoring device according to claim 1, characterized by further comprising the steps of:
(6-1) control of Heat dissipation of the device
The temperature sensor detects the temperature of the internal environment of the shell in real time and transmits data to the first controller in real time, the first controller is internally provided with a maximum value of the internal environment temperature, and when the temperature sensor continuously detects that the internal environment temperature of the device is greater than the maximum value of the internal environment temperature within T time, the first controller controls the radiator to start working;
when the temperature sensor continuously detects that the internal environment temperature is less than the maximum internal environment temperature within 3T, the first controller controls the radiator to stop working.
CN201710807673.1A 2017-09-08 2017-09-08 Ground wire state real-time monitoring device and control method Active CN107728003B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710807673.1A CN107728003B (en) 2017-09-08 2017-09-08 Ground wire state real-time monitoring device and control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710807673.1A CN107728003B (en) 2017-09-08 2017-09-08 Ground wire state real-time monitoring device and control method

Publications (2)

Publication Number Publication Date
CN107728003A CN107728003A (en) 2018-02-23
CN107728003B true CN107728003B (en) 2020-02-18

Family

ID=61204939

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710807673.1A Active CN107728003B (en) 2017-09-08 2017-09-08 Ground wire state real-time monitoring device and control method

Country Status (1)

Country Link
CN (1) CN107728003B (en)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110066353A (en) * 2009-12-11 2011-06-17 엘지이노텍 주식회사 Crack detecting system and crack detecting method
CN102183582B (en) * 2011-01-27 2013-05-29 中国商用飞机有限责任公司 Ultrasonic nondestructive testing device and method
CN202975125U (en) * 2012-11-19 2013-06-05 廊坊霸州供电有限公司 Auxiliary electricity testing device for grounding
CN202994893U (en) * 2012-11-28 2013-06-12 烟台正信电气有限公司 Transformer iron-core grounding current monitoring device
CN203799002U (en) * 2014-04-09 2014-08-27 国家电网公司 Data acquisition device for verification testing of partial discharge supersonic reflectoscope
CN104374422A (en) * 2014-09-19 2015-02-25 国家电网公司 Power transmission line pole tower monitoring system based on Beidou satellite system
CN104407199A (en) * 2014-12-01 2015-03-11 国网上海市电力公司 Automatic warning and positioning system of current exceeding of ground wire
CN204731365U (en) * 2015-07-02 2015-10-28 国家电网公司 A kind of real-time monitoring device of electrical network
CN205405638U (en) * 2016-03-04 2016-07-27 江苏星通北斗航天科技有限公司 Vehicle big dipper safety monitoring system
CN107024635B (en) * 2017-06-07 2019-05-21 深圳市中明科技股份有限公司 Grounding alarm system and grounding alarm vehicle

Also Published As

Publication number Publication date
CN107728003A (en) 2018-02-23

Similar Documents

Publication Publication Date Title
CN102563363B (en) Liquid leakage detecting positioning system
CN204758766U (en) High tension cable oversheath state of insulation on -line monitoring system
CN107764424A (en) A kind of cable intermediate joint temperature rise on-Line Monitor Device and method based on temperature difference method
CN103344885A (en) High-voltage single-core cable protective covering grounding online monitoring device and control method
CN103389408A (en) High-voltage single-core cable sheath grounding current on-line monitoring device and control method
CN104977513A (en) High-voltage cable outer sheath insulation state on-line monitoring system and control method thereof
CN103616620A (en) Traction substation feeder cable partial discharge monitoring device and monitoring method
CN107390049A (en) A kind of power cable fault monitoring method and device
CN107277847A (en) A kind of antenna attitude measuring system and method based on NB IoT transmission modes
CN203232113U (en) Integrated automation substation temperature detection system
CN105277903A (en) Method for performing remote monitoring on UPS
CN106291201A (en) The lightning monitoring of a kind of lightning protection box and deterioration state monitoring system and method
CN107728003B (en) Ground wire state real-time monitoring device and control method
CN107607830B (en) Method for continuously monitoring protective grounding state of electrical equipment
CN104283180B (en) Street lamp detection and protection apparatus for leakage and its current leakage detection protection method
CN203069703U (en) Lightning protection equipment intelligence monitoring terminal
CN205091588U (en) Supplementary monitoring system of circuit safety intelligence
CN105242626A (en) Line safety intelligent auxiliary monitoring system
CN207856145U (en) The long-range leak-proof anti-freezing monitoring warning device of fire protection pipeline
CN110896197A (en) Transformer substation cable trench online monitoring method and system based on Internet of things technology
CN110595546A (en) Hydrology equipment remote monitoring system
CN109932119A (en) A kind of ground wire hitching state monitoring apparatus, ground line and ground line system
CN205880122U (en) Railway link up line cord running state monitoring devices
CN108957260A (en) Partial discharge detecting system and method, storage medium, processor
CN205177064U (en) Wireless monitoring system of fire alarm

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
GR01 Patent grant
GR01 Patent grant