CN115128415B

CN115128415B - Power distribution station room state testing platform and method

Info

Publication number: CN115128415B
Application number: CN202211029284.8A
Authority: CN
Inventors: 张宝群; 宫成; 李亦非; 王芳; 李天乐; 于钊; 杨亚奇
Original assignee: Beijing Dingcheng Hongan Technology Development Co ltd
Current assignee: Beijing Dingcheng Hongan Technology Development Co ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-11-22
Anticipated expiration: 2042-08-26
Also published as: CN115128415A

Abstract

A power distribution station state test platform and a method are disclosed, wherein a background system issues a remote inspection mode instruction to a controller of a test device, the controller of the test device issues remote inspection mode instructions to each sensor of a sensor group, the sensors change an acquisition mode after receiving the remote inspection mode instruction, and return an acquisition mode change achievement signal to the controller of the test device; the influence of environmental noises such as indoor illumination of a power distribution station, air conditioning and the like on a detection result is solved, and a worker can remotely perform routing inspection and online routing inspection signal analysis work in a background system, so that the detection precision is improved, the personnel safety is guaranteed, and the detection efficiency is improved; the remote online monitoring of the multi-parameter variable frequency state of the power distribution station room can be realized, the detection frequency of the sensor is automatically improved for the sensor of an abnormal detection signal, the state signals of more working conditions are collected, the hidden danger of the power distribution station room is checked, and the labor cost and the time cost are saved.

Description

Power distribution station room state testing platform and method

Technical Field

The invention belongs to the technical field of power distribution station room state testing, and particularly relates to a power distribution station room state testing platform and a power distribution station room state testing method.

Background

The room provided with the distribution multi-path low-voltage load switch is called a power distribution station room, and mainly distributes electric energy for low-voltage workers or electric facilities, and the incoming line of the low-voltage power distribution station room is generally a 400V cable distributed by a low-voltage switch cabinet in a 35kV or 10kV power transformation and distribution station. The existing testing method is that workers judge the testing result by themselves, the testing result is suspicious, and the testing is carried out by adopting a mode of temporarily manually turning off the lighting of the power distribution station room and retesting after the air conditioner, so that the background noise influencing the testing result, such as the background electromagnetism in the power distribution station room, can be eliminated to a certain extent. However, the method needs manual operation of workers, influences on safety of the workers due to the fact that illumination is turned off temporarily and dark environments are caused, the workers need to find a measuring point accurately in the dark environments for retesting, and the method is extremely high in problematic and technical requirements.

In addition, the acquisition frequency of the sensor is fixed during the state online monitoring of the traditional power distribution station room, the acquisition frequency is generally higher (the partial discharge sensor is generally 12-24 hours, the environmental sensor is generally 15-30 minutes, the acquisition frequency is too high, the power consumption of the sensor is high, and the sensor battery needs to be frequently replaced), and if the monitored signal is possibly abnormal during the long-term online monitoring period, a professional is arranged to go to the power distribution station room site to utilize the partial discharge polling instrument to perform targeted testing. Because the problems such as partial discharge of a power distribution station room often have sporadic property and randomness, single field test cannot accurately find the problems, the traditional method easily causes hidden dangers, leaks and judges, and the consequence is serious.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide a power distribution station room state testing platform and a method, which solve the influence of environmental noises such as indoor illumination, air conditioning and the like of the power distribution station on a detection result, and can remotely carry out routing inspection and online routing inspection signal analysis work by a worker in a background system, thereby improving the detection precision, ensuring the safety of personnel and improving the detection efficiency; the remote online monitoring of the multi-parameter variable frequency state of the power distribution station room can be realized, the detection frequency of the sensor is automatically improved for the sensor of an abnormal detection signal, the state signals of more working conditions are collected, the hidden danger of the power distribution station room is checked, and the labor cost and the time cost are saved.

The invention adopts the following technical scheme.

A power distribution station room state testing method comprises the following steps:

step 1-1: the background system issues a remote inspection mode instruction to a controller of the testing device, the controller of the testing device issues the remote inspection mode instruction to each sensor of the sensor group, the sensors change the acquisition mode after receiving the remote inspection mode instruction and return an acquisition mode change achievement signal to the controller of the testing device, and the controller of the testing device returns a mode change completion signal to the background system after receiving the acquisition mode change achievement signals returned by all the sensors;

step 1-2: after the background system receives a mode change completion signal returned by a controller of the testing device, a worker clicks an inspection start button on an interactive interface displayed by the background system;

step 1-3: after an operator clicks a polling start button, a background system issues a polling start instruction to a controller of the testing device, and after the controller of the testing device receives the polling start instruction, an illumination transmitter and a noise transmitter which are connected with the background system respectively acquire a current illumination signal and a current noise signal in a power distribution station room, and respectively transmit the current illumination signal and the current noise signal as a first illumination result and a first noise result back to the controller of the testing device to execute corresponding treatment;

step 1-4: after acquiring all sensor signals, a controller of the testing device locally analyzes the acquired sensor signals, and the analyzed acquired signals, the longitude and latitude values of the position of the testing device and the current time value uploaded by each sensor signal are packaged to form routing inspection signals which are transmitted to a background system through a mobile communication module;

step 1-5: the background system backups the polling signal transmitted by the controller of the testing device into a signal library of the background system.

Preferably, the step 1-2 further comprises: if the controller of the testing device does not return a mode change completion signal, the remote inspection mode instruction is automatically re-issued after 2 minutes, and if the remote inspection mode instruction is continuously re-issued for 5 times and still does not receive the mode change signal returned by the controller of the testing device, the abnormal message is prompted to appear on the testing device.

Preferably, the performing of the corresponding treatment in the step 1-3 includes:

step 1-3-1: an infrared switch connected in series between an indoor lighting lamp and a power supply of the power distribution station and an infrared switch connected in series between an air conditioner and the power supply of the air conditioner are transmitted through an infrared transmitting module to switch off the infrared switch;

step 1-3-2: then, collecting a current illumination signal and a current noise signal in the power distribution station room, and respectively taking the current illumination signal and the current noise signal as a second illumination result and a second noise result to be transmitted back to a controller of the testing device;

step 1-3-3: when the ratio of the second illumination result to the first illumination result is less than 0.7 or the two illumination results are less than 10Lx, and the ratio of the second noise result to the first noise result is less than 0.7 or the two noise results are less than 40db, the indoor lighting lamps and air conditioners of the power distribution station are considered to be closed;

step 1-3-4: the controller of the testing device acquires sensor signals acquired by all sensors in the sensor group in real time, and acquires the longitude and latitude values of the corresponding position of the testing device and the current time value uploaded by the sensor signals through the GPS module or the Beidou module when the sensor signals transmitted by one sensor are acquired.

Preferably, the steps 1 to 4 further include: if the controller of the testing device does not obtain all sensor signals, and the controller of the testing device receives the inspection starting instruction and then sends an instant calling signal instruction to the sensor which does not upload the sensor signals 2 minutes later, and if all the sensor signals cannot be obtained after the instant calling signal instruction is continuously sent for 2 times, the sensor signals are judged to be failed to obtain.

Preferably, the substation room status testing method further includes the following steps:

step 2-1: the background system performs status identification on the polling signal transmitted by the controller of the testing device before backing up the polling signal into a background system signal library:

step 2-2: adjusting the acquisition period of the sensor according to the condition identification result;

step 2-3: when the situation is judged to be abnormal and the collected signals of the sensors are suspected to be abnormal, after the collection frequency of the sensors is changed, the sensors which are suspected to be abnormal are continuously collected for 1000 times, the judging result of the signals is not generated, the background system issues a default collection period instruction to the controller of the testing device, and the controller of the testing device restores the initial signal collection period of the sensors.

Preferably, the step 2-1 specifically comprises:

for the partial discharge signals collected by the partial discharge sensor in the routing inspection signal, when the maximum value of the partial discharge signals is higher than 40db or the partial discharge signals exceed the maximum value of the partial discharge signals in a signal library or are higher than 1.5 times of the average value of the historical partial discharge signals, the result of the research and judgment of the partial discharge signals collected by the partial discharge sensor is suspected to be abnormal;

for the environmental signals collected by the environmental sensor in the routing inspection signals, when one of the temperature signals, the humidity signals, the smoke sensing signals and the water level signals in the environmental signals exceeds a preset standard range, the result of the judgment of the environmental signals collected by the environmental sensor is suspected to be abnormal;

for the voltage signal and the current signal respectively collected by the voltage sensor and the current sensor in the routing inspection signal, when the current signal exceeds 90% of the maximum value allowed by the measuring point where the current sensor is located, the result of the study and judgment of the current signal collected by the current sensor is suspected to be abnormal; when the voltage signal exceeds the allowable range of the measuring point where the voltage sensor is located, the result of the study and judgment of the voltage signal acquired by the voltage sensor is suspected to be abnormal;

if the suspected abnormality does not occur in the research and judgment result in the polling signal, the condition is determined to be normal, and if the suspected abnormality occurs in the research and judgment result in the polling signal, the condition is determined to be abnormal;

the step 2-2 specifically comprises:

if the situation is determined to be normal, the acquisition frequency of the existing sensor is continuously maintained;

if the situation is determined to be abnormal and only signals acquired by 1 sensor are suspected to be abnormal, the background system issues an acquisition frequency change instruction to the sensor through a controller of the testing device to execute acquisition frequency change;

if the situation is determined to be abnormal and more than 2 signals collected by the sensors are suspected to be abnormal, the controller of the background system testing device issues a collection frequency change instruction to all the sensors to execute collection frequency change;

the collection frequency change rule in the step 2-2 is as follows:

for the partial discharge sensor, after receiving an acquisition frequency change instruction, changing the signal acquisition period from 12 hours to 5 minutes, changing the signal acquisition period of the partial discharge sensor to 30 minutes if no suspected abnormality occurs in the research and judgment result of 100 continuous acquired signals, and keeping the signal acquisition period for 5 minutes if the research and judgment result is suspected abnormality;

for the environment sensor, after receiving an acquisition frequency change instruction, changing the signal acquisition period from 15 minutes to 1 minute, changing the signal acquisition period to 5 minutes if no suspected abnormality occurs in the judgment result of 100 continuous signals acquired by the environment sensor, and keeping the signal acquisition period to 1 minute if the judgment result is suspected abnormality;

for the voltage sensor or the current sensor, after receiving an acquisition frequency change instruction, a signal acquisition period is changed from 15 minutes to 1 minute, the signal acquisition period of 100 continuous acquired signals of the voltage sensor or the current sensor is changed to 5 minutes if no suspected abnormality occurs in the judgment result, and if the judgment result is suspected abnormality again, the signal acquisition period is kept for 1 minute all the time.

The step 2-3 further comprises: when the situation determination result is abnormal and the collection frequency of the collected signal is suspected to be abnormal, after the collection frequency is changed, the distribution station room where the sensor with the suspected abnormal frequency of the judgment result of 1000-time signals is located is continuously collected, or the distribution station room where the sensor with the suspected abnormal frequency of the judgment result of more than two sensors is located, and the background system automatically determines the distribution station room as the abnormal station room.

A substation room condition testing platform comprising:

the test device and a background system in wireless communication with the test device;

the testing device comprises a controller, a sensor group, a GPS module or a Beidou module, an illumination transmitter, a noise transmitter, an infrared transmitting module and a mobile communication module which are arranged in a power distribution room, wherein the infrared transmitting module, the sensor group, the GPS module or the Beidou module, the illumination transmitter, the noise transmitter, the infrared transmitting module and the mobile communication module are all electrically connected with the controller;

infrared switches are connected in series between the lighting lamp and the power supply of the lighting lamp and between the air conditioner and the power supply of the lighting lamp;

the programs running on the background system comprise a first issuing program, a third issuing program and a backup program;

the issuing program I is used for issuing a remote inspection mode instruction to a controller of the testing device;

the issuing program III is used for issuing a patrol starting instruction to a controller of the testing device;

the backup program is used for backing up the inspection signal transmitted by the controller of the testing device into a signal library of the background system;

the program running on the controller of the testing device comprises a second issuing program, a second returning program, a second handling program and a second packaging program;

the issuing program II is used for issuing a remote inspection mode instruction to each sensor of the sensor group;

the return program is used for returning a mode change completion signal to the background system after receiving the acquisition mode change completion signals returned by all the sensors;

the processing program is used for enabling an illumination transmitter and a noise transmitter connected with the processing program to respectively acquire a current illumination signal and a current noise signal in the power distribution station room after receiving the inspection starting instruction, and respectively transmitting the current illumination signal and the current noise signal as a first illumination result and a first noise result back to a controller of the testing device to execute corresponding processing;

and the packaging program is used for locally analyzing the acquired sensor signals after all the sensor signals are acquired, analyzing the acquired signals, transmitting the analyzed acquired signals, the longitude and latitude values of the positions of the testing device and the current time value uploaded by each sensor signal to a background system through the mobile communication module after packaging to form inspection signals.

Preferably, the processing program is further configured to transmit a closing instruction to an infrared switch connected in series between the distribution substation indoor lighting fixture and the power supply thereof and an infrared switch connected in series between the air conditioner and the power supply thereof through the infrared transmitting module to turn off the infrared switch; the controller is used for acquiring a current illumination signal and a current noise signal in the power distribution station room, and respectively transmitting the current illumination signal and the current noise signal as a second illumination result and a second noise result back to the testing device; when the ratio of the second illumination result to the first illumination result is less than 0.7 or the two illumination results are less than 10Lx, and the ratio of the second noise result to the first noise result is less than 0.7 or the two noise results are less than 40db, the indoor lighting lamps and air conditioners of the power distribution station are considered to be closed; the method comprises the steps that sensor signals collected by all sensors in a sensor group are obtained in real time, and when a sensor signal transmitted by one sensor is obtained, the longitude and latitude values of the position of a corresponding testing device and the current time value uploaded by the sensor signal are obtained through a GPS module or a Beidou module;

the packing program is also used for issuing an instant calling signal instruction to the sensor which does not upload the sensor signal if the controller of the testing device does not acquire all the sensor signals and the controller of the testing device receives the inspection starting instruction 2 minutes later, and judging that the acquisition of the sensor signals fails if all the sensor signals cannot be acquired after 2 times of continuous issuing of the instant calling signal instruction.

Preferably, the programs running on the background system further comprise a recognition program, an adjustment program and a transmission program;

the identification program is used for identifying the state of the inspection signal transmitted by the controller of the testing device before backing up the inspection signal into the background system signal library;

the adjusting program is used for adjusting the acquisition period of the sensor according to the condition identification result;

the transmission program is used for continuously acquiring 1000 times of signals when the condition is determined to be abnormal and the acquired signals of the sensors are suspected to be abnormal after the acquisition frequency is changed, and the judging result of the signals does not have the sensors suspected to be abnormal, the background system issues a default acquisition period instruction to the controller of the testing device, and the controller of the testing device recovers the initial signal acquisition period of the sensors;

the identification program is also used for judging whether the local discharge signal acquired by the local discharge sensor in the inspection signal is suspected to be abnormal when the maximum value of the local discharge signal is higher than 40db or the local discharge signal exceeds the maximum value of the local discharge signal in the signal library or is higher than 1.5 times of the average value of the historical local discharge signal;

for the environmental signal collected by the environmental sensor in the routing inspection signal, when one of the temperature signal, the humidity signal, the smoke sensing signal and the water level signal in the environmental signal exceeds a preset standard range, the result of the environmental signal collected by the environmental sensor is suspected to be abnormal;

if the suspected abnormality does not appear in the result of the study in the inspection signal, the state is determined to be normal, and if the suspected abnormality appears in the result of the study in the inspection signal, the state is determined to be abnormal.

Preferably, the adjusting program is further configured to continue to maintain the acquisition frequency of the existing sensor if the condition is determined to be normal;

if the situation is judged to be abnormal and only signals acquired by 1 sensor are suspected to be abnormal, the background system issues an acquisition frequency change instruction to the sensor through a controller of the testing device to execute acquisition frequency change;

the transmission program is also used for automatically judging the power distribution station room as an abnormal station room by the background system when the situation determination result is abnormal and the collection frequency of the sensor which is collected and suspected to be abnormal is changed, wherein the ratio of the frequency of the suspected abnormal judgment result of the 1000-time signals collected continuously to the power distribution station room where the sensor is located is more than 10%, or the ratio of the suspected abnormal frequency of the judgment result of more than two sensors to the power distribution station room where the sensor is located is more than 5%.

The background system sends the inspection starting instruction to the controller of the testing device, after the controller of the testing device receives the inspection starting instruction, the illumination transmitter and the noise transmitter which are connected with the background system respectively acquire the current illumination signal and the current noise signal in the power distribution station room, and the current illumination signal and the current noise signal are respectively taken as the first illumination result and the first noise result to be transmitted back to the controller of the testing device to execute corresponding treatment, so that the influence of environmental noises such as indoor illumination and air conditioning of the power distribution station on the detection result is solved, an operator can remotely carry out inspection and online inspection signal analysis work in the background system, the detection precision is improved, the reliability of personnel is guaranteed, and the detection efficiency is improved. The background system carries out the condition identification to the signal of patrolling and examining that testing arrangement's controller transmitted before the backup advances background system signal storehouse, adjusts the acquisition cycle of sensor according to the condition identification result, can realize the long-range on-line monitoring of many parameters variable frequency state of power distribution station room, to the sensor of unusual detected signal, improves the sensor detection frequency automatically, gathers the state signal of more operating modes for power distribution station room hidden danger investigation, has saved cost of labor and time cost.

Drawings

FIG. 1 is a flow chart of steps 1-1 to 1-5 described in the present invention;

FIG. 2 is a flow chart of steps 1-3-1 to 1-3-4 described in the present invention;

FIG. 3 is a flow chart of steps 2-1 to 2-3 in the present invention.

Detailed Description

The present application is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present application is not limited thereby.

The method for testing the state of the power distribution station room, disclosed by the invention, as shown in figure 1, comprises the following steps of:

generally, a sensor performs on-line signal acquisition on the state of a distribution substation room at a default fixed acquisition frequency, when the acquisition frequency of the sensor needs to be changed, a background system issues a remote inspection mode instruction containing a new acquisition frequency value to a controller of a testing device, and after receiving the remote inspection mode instruction, the sensor changes an acquisition mode to perform signal acquisition according to the new acquisition frequency value as the acquisition frequency.

Step 1-2: after the background system receives a mode change completion signal returned by a controller of the testing device, the inspection mode of the power distribution station room can be started, and a worker can click an inspection start button (the button is a button with character identification as the inspection start button) on an interactive interface displayed by the background system;

in a preferred but non-limiting embodiment of the invention, said step 1-2 further comprises: if the controller of the testing device does not return a mode change completion signal, the remote patrol mode instruction is automatically re-issued after 2 minutes, and if the remote patrol mode instruction is continuously re-issued for 5 times and still does not receive the mode change signal returned by the controller of the testing device, the abnormal message is prompted to appear in the testing device.

The prompt of the abnormal message of the test device is to display the abnormal character string of the test device on the background system.

Step 1-3: after clicking a polling start button, an operator starts remote polling work, a background system issues a polling start instruction to a controller of a testing device, and after receiving the polling start instruction, the controller of the testing device enables an illumination transmitter and a noise transmitter connected with the controller to respectively acquire a current illumination signal and a current noise signal in a power distribution station room, and respectively takes the current illumination signal and the current noise signal as a first illumination result and a first noise result to be transmitted back to the controller of the testing device to execute corresponding treatment;

in a preferred but non-limiting embodiment of the invention, as shown in fig. 2, the performing of the corresponding treatment in steps 1-3 includes:

step 1-3-1: an infrared switch connected in series between the indoor lighting lamp and the power supply of the power distribution station and an infrared switch connected in series between the air conditioner and the power supply of the power distribution station are transmitted by an infrared transmitting module to turn off the infrared switch;

step 1-3-3: when the ratio of the second illuminance result to the first illuminance result is less than 0.7 or the two illuminance results are both less than 10Lx, and the ratio of the second noise result to the first noise result is less than 0.7 or the two noise results are both less than 40db, the indoor lighting lamps and air conditioners of the power distribution station are considered to be turned off;

1-3-4: the controller of the testing device acquires sensor signals acquired by all sensors in the sensor group in real time, and acquires the longitude and latitude values of the corresponding position of the testing device and the current time value uploaded by the sensor signals through the GPS module or the Beidou module when the sensor signals transmitted by one sensor are acquired.

Usually, the sensor group includes a partial discharge sensor, an environment sensor, a voltage sensor and a current sensor which are arranged at each measuring point of the power distribution station room. Signals collected by the partial discharge sensor, the environment sensor, the voltage sensor and the current sensor are sensor signals.

in a preferred but non-limiting embodiment of the invention, said steps 1-4 further comprise: if the controller of the testing device does not obtain all the sensor signals, and the controller of the testing device receives the patrol starting instruction and then sends an instant calling signal instruction to the sensor which does not upload the sensor signals 2 minutes later, and if all the sensor signals can not be obtained after 2 times of sending the instant calling signal instruction continuously, the sensor signals are judged to be failed to obtain.

Step 1-5: the background system backs up the polling signals transmitted by the controller of the testing device into a signal library of the background system, and the background system can perform statistical analysis on all polling signals of the power distribution station room according to the sensor groups and the sensor positions.

In a preferred but non-limiting embodiment of the present invention, the substation room status testing method, as shown in fig. 3, further comprises the steps of:

in a preferred but non-limiting embodiment of the invention, said step 2-1 comprises in particular:

for the environmental signals collected by the environmental sensor in the routing inspection signals, when one of the temperature signals, the humidity signals, the smoke sensing signals and the water level signals in the environmental signals exceeds a preset standard range, the result of the judgment of the environmental signals collected by the environmental sensor is suspected to be abnormal; the environment sensor comprises a temperature sensor, a humidity sensor, a smoke sensing sensor and a water level sensor, wherein the temperature sensor, the humidity sensor, the smoke sensing sensor and the water level sensor respectively acquire a temperature signal, a humidity signal, a smoke sensing signal and a water level signal.

in a preferred but non-limiting embodiment of the invention, said step 2-2 comprises in particular:

if the situation is determined to be abnormal and only signals acquired by 1 sensor are suspected to be abnormal, the acquisition frequency of the sensor is adjusted, and the background system issues an acquisition frequency change instruction to the sensor through a controller of the testing device to execute acquisition frequency change;

in order to collect more signals to ensure the safety of the power distribution station room, if the situation is determined to be abnormal and more than 2 sensors collect suspected abnormal signals, the collection frequency of all the sensors is changed, and a controller of the background system testing device issues collection frequency change instructions to all the sensors to execute collection frequency change.

In a preferred but non-limiting embodiment of the present invention, the acquisition frequency change rule in step 2-2 is:

In a preferred but non-limiting embodiment of the invention, said step 2-3 further comprises: when the situation is judged to be abnormal and the collected signals are suspected to be abnormal, after the collection frequency of the sensors is changed, the distribution substation room where the frequency of the suspected abnormal conditions of the 1000-time signals is more than 10% is located, or the distribution substation room where the frequency of the suspected abnormal conditions of the more than two sensors is more than 5% is located, and the distribution substation room is automatically judged to be abnormal by the background system. And in the power distribution station room judged as the abnormal station room, the operation and maintenance units of the workers and the belongings can comprehensively analyze historical inspection signals in the background system, check and detect the historical inspection signals by combining with field equipment, fill in abnormal reason analysis and upload the abnormal reason analysis to the background system.

In addition, the background system in the step 1-5 backs up the polling signal transmitted from the controller of the testing device into the signal library of the background system; the signal reliability backed up in the signal library of the background system generally has hardware reliability and software reliability; the hardware reliability is the entity reliability maintenance of a hardware framework in the background system, and the software reliability is the program reliability maintenance of the completeness, privacy and effectiveness of all signals in the background system; under either condition of lack of reliability setting, the signal reliability can have serious adverse consequences; the signal reliability of the background system at present is usually that an inquiry party performs mark identification and registration analysis by account number correction, so that only the result that the routing inspection signal is deliberately destroyed by a hacker program during the routing inspection signal feeding period can be achieved, and the background system running state, the external running terminal state and the whole load state during the routing inspection backup period during the routing inspection signal feeding period are not easy to be comprehensively applied to form a hierarchical ladder-shaped control mode so as to achieve the functions of covering control and linear response oriented of the signal reliability; however, at present, reliability entity maintenance is performed on the backup terminal, and the characteristic that n terminals are connected with each other in a background system is not considered.

Through improvement, a problem detection program, a route formulation program, a signal movement program and an account number correction program run on a main control terminal of the background system;

here, n terminals are arranged in the background system, one terminal in the background system is a main control terminal, and the n terminals are all located in a mobile communication network such as a 3G network, a 4G network or a 5G network; n is a positive integer greater than two; the terminal can be an industrial personal computer, a PC or a notebook computer.

In the application, when a main control terminal in a background system is accessed by a hacker program, a signal motion program can form an imitation signal, the imitation signal is transmitted to a second selection terminal, a second optimal selection terminal and a third optimal selection terminal, and a routing inspection signal in the main control terminal is transmitted to an avoidance terminal through a transition terminal; the routing inspection signals are transmitted into the avoidance terminal in a sequential propulsion mode, so that the signal transmission period is guaranteed, the transmission time is long due to the fact that the transmission interval is short, and the probability that the routing inspection signals are stolen is increased;

in a preferred but non-limiting embodiment of the invention, the account number collation program is used to perform collation on the account number used for signal backup; in a preferred but non-limiting embodiment of the invention, the problem detection procedure is used to verify the reliability parameters of the terminals connected to the master control terminal; in a preferred but non-limiting embodiment of the invention, the route detection procedure is used to perform problem detection for all terminals in the back-end system; in a preferred but non-limiting embodiment of the invention, the route formulation program is used to formulate routing of routing inspection signal transmissions; in a preferred but non-limiting embodiment of the invention, the account number proofing program is used to perform proofing on an inquirer who obtains and backs up the patrol signal;

in addition, the inquiring party can be other background systems and can also be the account number of the controller of the testing device; the account number pair can be used for account number password authentication, two-dimensional code authentication and iris authentication;

after the inquiring party is corrected to be correct by the account number correcting program, the inquiring party backups the inspection signals towards n terminals, and the method comprises the following steps:

step 1-5-1: the background system groups the polling signals and obtains the character quantity of the polling signals;

specifically, the grouping group is that partial discharge signals in the routing inspection signals are classified into a partial discharge signal group, environment signals are classified into an environment signal group, voltage signals are classified into a voltage signal group, and current signals are classified into a current signal group;

step 1-5-2: the background system forms simulation signals which are consistent with the number of terminals in the background system, the groups of the simulation signals are consistent with the polling signal groups, and the character quantity is consistent;

step 1-5-3: transmitting the imitation signal to all terminals in the background system;

1-5-4: executing decrement coding operation on the simulated signals in the whole terminals at a time point, correspondingly forming decrement coding signals in the synchronous terminals, and registering time consumed by the decrement coding; the method of the reduced coding operation can be an RLE method.

1-5-5: after all the terminals form the decrement coding signal, decoding operation is carried out on the decrement coding signal in all the terminals at one time point, the corresponding decoding signal is formed in the synchronized terminal, and the decoding time is registered;

here, the decrement encoding and decoding methods of all terminals are identical when the decrement operation and the decoding operation are performed;

1-5-6: after the decrement coding signals in all the terminals are decoded, acquiring the quantity of idle units of the hard disks corresponding to all the terminals, and selecting the terminal with the largest quantity of idle units as a first backup terminal;

1-5-7: and the background system backs up the polling signal in the first backup terminal.

After the background system sets the master control terminal, the problem detection program can monitor the patrol signal backed up in the master control terminal in real time; here, interception is performed on the master terminal via an interception program such as a hundred-degree guard, a caspasky, or the like; after the master control terminal is set in the background system, the route detection program immediately executes effectiveness selection on all terminals in the background system through the effectiveness component.

In detail, the validity component comprises a backup derivation procedure, a hacker procedure access totalization procedure, a backup comparison procedure and a transmission bit rate procedure;

the backup derivation program is used for obtaining the amount of the backup units left in the terminal hard disk in the background system, and the terminal with the amount of the residual backup units exceeding the backup critical amount is taken as a first terminal; the amount of remaining backup units is the amount of remaining free units available.

The hacker program access total program is used for obtaining the total working time consumption, the total standby time consumption, the total hacker program access frequency and the total hacker program access frequency prevention of the selected terminal I, obtaining the corresponding operation reliability of the terminal through a selection equation II, and taking the selected terminal I with the operation reliability higher than the reliability critical amount as a selection terminal II;

the backup comparison program is used for executing backup on the corresponding idle unit quantity of the terminal, and the second selection terminal with the idle unit quantity higher than the critical quantity of the idle unit is taken as the best second selection terminal;

the transmission bit rate procedure is used to obtain the transmission bit rate between adjacent terminals, and the second selection terminal with the transmission bit rate higher than the transmission critical amount is used as the best selection terminal three.

In detail, the hacker program access total program is used for obtaining the total working time, the total standby time, the total access frequency of the hacker program and the total access frequency of the hacker program, obtaining the corresponding operation reliability of the terminal through a selection equation two, and taking the selected terminal one with the operation reliability higher than the critical amount of the reliability as a selection terminal two;

equation two is chosen as follows:

taking the total working time consumption as a dividend and taking the total standby time consumption as a divisor to divide the obtained quotient and multiply the reliability factor; the reliability factor is a quotient obtained by dividing the total frequency by preventing the total frequency as a dividend and by a hacker program accessing the total frequency as a divisor;

the total working time, the total standby time, the total frequency of access by the hacker program and the total frequency of blocking are all obtained from the history information of the background system.

The transmission bit rate between adjacent terminals is obtained through a transmission equation;

the transmission equation is a value obtained by adding the transmission bit rate when the transmission bit rate is not occupied and the transmission bit rate when the transmission bit rate is occupied as a dividend and dividing 2 as the dividend;

here, the unoccupied-time transmission bit rate is a transmission bit rate at which only the dummy signal is transmitted when the channel between adjacent terminals is unoccupied;

the occupied-time transmission bit rate is a transmission bit rate at which the dummy signal is concurrently transmitted when the channel between adjacent terminals is occupied.

In a preferred but non-limiting embodiment of the present invention, when the route formulation program selects synchronization, the terminals of the optimal selection terminal three and the optimal selection terminal two are taken as avoidance terminals, and an avoidance route is formulated;

here, the avoidance terminal is connected to at least three adjacent terminals, and the number of the second selected terminal, the second best selected terminal or the third best selected terminal between the avoidance terminal and the main control terminal is the lowest.

In a preferred but non-limiting embodiment of the invention, a method of making an avoidance route comprises:

a-1: taking the main control terminal as a source point, and taking a second selection terminal, a second optimal selection terminal or a third optimal selection terminal connected with the main control terminal as a first transmission domain;

a-2: acquiring a second selection terminal, a second optimal selection terminal or a third optimal selection terminal connected with the first transmission domain as a second transmission domain, and setting the value of X as 2,X as an integer variable;

a-3: the value of X is added with one, and a second selection terminal, a second optimal selection terminal or a third optimal selection terminal connected with the second transmission domain are obtained and serve as the second transmission domain X;

a-4: repeatedly executing the step A-3 until an avoidance terminal appears in the transmitting domain X;

a-5: taking a second selection terminal, a second optimal selection terminal or a third optimal selection terminal from the first transmission domain to the X transmission domain as transition terminals;

here, when the first transmission domain is the second transmission domain, the second optimal selection terminal or the third optimal selection terminal is selected as the next transmission domain;

and when the second optimal selection terminal or the third optimal selection terminal is not arranged around the transmitting area, the second optimal selection terminal can be used as the next transmitting area.

During the implementation of the invention, the backup critical quantity and the reliability critical quantity field transmission critical quantity are set by the polling signal backup requester, and the proper critical quantity can be selected according to the requirement of workers or the requirement of the reliability of the polling signal.

When a main control terminal in the background system is accessed by a hacker program, a signal motion program can form a simulation signal, the simulation signal is transmitted to a second selection terminal, a second optimal selection terminal and a third optimal selection terminal, and the routing inspection signal is transmitted to an avoidance terminal through a transition terminal; the routing inspection signals are transmitted to the avoiding terminal in a sequential propulsion mode, the transmission time consumption caused by the fact that adjacent terminals are selected for transmission is shortened in the signal transmission period, the reliability of the signals in the transmission period is guaranteed, in addition, the route of the routing inspection signals for transition is changed in real time according to a background system, the avoiding terminal is selected randomly for use, the reliability of signal backup is greatly improved, and the routing inspection signals are prevented from being damaged again after being attacked by a hacker program.

The invention relates to a power distribution station room state testing platform, which comprises:

the testing device comprises a controller, a sensor group, a GPS module or a Beidou module, an illumination transmitter, a noise transmitter, an infrared transmitting module and a mobile communication module which are arranged in a power distribution room, wherein the infrared transmitting module, the sensor group, the GPS module or the Beidou module, the illumination transmitter, the noise transmitter, the infrared transmitting module and the mobile communication module are all electrically connected with the controller; the controller is a single chip microcomputer, a DSP chip or an FPGA chip, the mobile communication module can be a 3G module, a 4G module or a 5G module, and the background system can be a large number of industrial personal computers, PCs or notebook computers. The controller is in wireless communication with the background system through the mobile communication module. The terminals in the background system are located in a mobile communication network such as a 3G network, a 4G network or a 5G network.

the program running on the controller of the test device comprises a second issuing program, a second returning program, a second handling program and a packaging program;

In a preferred but non-limiting embodiment of the present invention, the processing program is further configured to transmit a closing command to the infrared switch connected in series between the distribution substation indoor lighting fixture and the power supply thereof and the infrared switch connected in series between the air conditioner and the power supply thereof through the infrared transmitting module to turn off the infrared switch; the controller is used for acquiring a current illumination signal and a current noise signal in the power distribution station room, and respectively taking the current illumination signal and the current noise signal as a second illumination result and a second noise result to be transmitted back to the testing device; when the ratio of the second illumination result to the first illumination result is less than 0.7 or the two illumination results are less than 10Lx, and the ratio of the second noise result to the first noise result is less than 0.7 or the two noise results are less than 40db, the indoor lighting lamps and air conditioners of the power distribution station are considered to be closed; the method comprises the steps of obtaining sensor signals collected by all sensors in a sensor group in real time, and obtaining the longitude and latitude values of the corresponding testing device position and the current time value uploaded by the sensor signals through a GPS module or a Beidou module when the sensor signals transmitted by one sensor are obtained.

In a preferred but non-limiting embodiment of the present invention, the packaging program is further configured to issue an instant call signal instruction to a sensor that does not upload a sensor signal 2 minutes after the controller of the testing apparatus receives the patrol start instruction if all sensor signals are not acquired by the controller of the testing apparatus, and determine that the sensor signals are not acquired if all sensor signals cannot be acquired after 2 consecutive times of issuing the instant call signal instruction.

In a preferred but non-limiting embodiment of the present invention, the programs running on the background system further include a recognition program, an adjustment program and a transmission program;

the transmission program is used for continuously acquiring 1000 times of signals when the condition is determined to be abnormal and the acquired signals of the sensors are suspected to be abnormal after the acquisition frequency is changed, the studying and judging result of the signals does not have the sensors suspected to be abnormal, the background system issues a default acquisition period instruction to the controller of the testing device, and the controller of the testing device restores the initial signal acquisition period of the sensors.

In a preferred but non-limiting embodiment of the present invention, the identifying program is further configured to, for the partial discharge signal collected by the partial discharge sensor in the inspection signal, determine that the partial discharge signal collected by the partial discharge sensor is suspected to be abnormal when the maximum value of the partial discharge signal is higher than 40db or the partial discharge signal exceeds the maximum value of the partial discharge signal in the signal library or is higher than 1.5 times the average value of the historical partial discharge signals;

if the result of the study and judgment in the patrol inspection signal is not suspected to be abnormal, the condition is determined to be normal, and if the result of the study and judgment in the patrol inspection signal is suspected to be abnormal, the condition is determined to be abnormal.

In a preferred but non-limiting embodiment of the invention, the adjustment procedure is also used to continue to maintain the acquisition frequency of the existing sensors if the situation is deemed normal;

if the situation is determined to be abnormal and more than 2 signals collected by the sensors are suspected to be abnormal, the controller of the background system testing device issues a collection frequency change instruction to all the sensors to execute collection frequency change.

In a preferred but non-limiting embodiment of the present invention, the transmission program is further configured to, after the collection frequency of the sensor whose status is determined to be abnormal and whose collected signal is suspected to be abnormal is changed, continuously collect 1000 times of signals, the distribution substation room where the sensor whose frequency of the suspected abnormality in the judgment result exceeds 10% is located, or the distribution substation room where the sensor whose frequency of the suspected abnormality in the judgment result exceeds 5% is located, and the background system automatically determines the distribution substation room as the abnormal substation room.

The present applicant has described and illustrated embodiments of the present invention in detail with reference to the accompanying drawings, but it should be understood by those skilled in the art that the above embodiments are merely preferred embodiments of the present invention, and the detailed description is only for the purpose of helping the reader to better understand the spirit of the present invention, and is not intended to limit the scope of the present invention, but rather, any improvement or modification made based on the spirit of the present invention should fall within the scope of the present invention.

Claims

1. A power distribution station room state testing method is characterized by comprising the following steps:

step 1-2: after the background system receives a mode change completion signal returned by the controller of the testing device, a worker clicks a routing inspection start button on an interactive interface displayed by the background system;

step 1-5: backing up the polling signal transmitted by the controller of the testing device into a signal library of the background system by the background system;

the step 1-3 of performing the corresponding treatment comprises:

step 1-3-2: then, acquiring a current illumination signal and a current noise signal in the power distribution station room, and respectively taking the current illumination signal and the current noise signal as a second illumination result and a second noise result to be transmitted back to a controller of the testing device;

1-3-3: when the ratio of the second illuminance result to the first illuminance result is less than 0.7 or the two illuminance results are both less than 10Lx, and the ratio of the second noise result to the first noise result is less than 0.7 or the two noise results are both less than 40db, the indoor lighting lamps and air conditioners of the power distribution station are considered to be turned off;

2. The substation room status testing method of claim 1, wherein the steps 1-2 further comprise: if the controller of the testing device does not return a mode change completion signal, the remote inspection mode instruction is automatically re-issued after 2 minutes, and if the remote inspection mode instruction is continuously re-issued for 5 times and still does not receive the mode change signal returned by the controller of the testing device, the abnormal message is prompted to appear on the testing device.

3. The substation room status testing method of claim 1, wherein the steps 1-4 further comprise: if the controller of the testing device does not obtain all the sensor signals, and the controller of the testing device receives the patrol starting instruction and then sends an instant calling signal instruction to the sensor which does not upload the sensor signals 2 minutes later, and if all the sensor signals can not be obtained after 2 times of sending the instant calling signal instruction continuously, the sensor signals are judged to be failed to obtain.

4. The substation room status testing method of claim 1, further comprising the steps of:

5. The substation room status testing method according to claim 4, wherein the step 2-1 specifically comprises:

the step 2-2 specifically comprises:

the collection frequency change rule in the step 2-2 is as follows:

for a voltage sensor or a current sensor, after receiving an acquisition frequency change instruction, changing a signal acquisition period from 15 minutes to 1 minute, changing the signal acquisition period to 5 minutes when the judgment result of 100 continuous signals acquired by the voltage sensor or the current sensor is not suspected to be abnormal, and keeping the signal acquisition period to be 1 minute when the judgment result is suspected to be abnormal again;

the step 2-3 further comprises: when the situation is judged to be abnormal and the collected signals are suspected to be abnormal, after the collection frequency of the sensors is changed, the distribution substation room where the frequency of the suspected abnormal conditions of the 1000-time signals is more than 10% is located, or the distribution substation room where the frequency of the suspected abnormal conditions of the more than two sensors is more than 5% is located, and the distribution substation room is automatically judged to be abnormal by the background system.

6. A substation room condition testing platform, comprising:

the infrared switch is connected in series between the lighting lamp and the power supply of the lighting lamp and between the air conditioner and the power supply of the lighting lamp;

the processing program is used for enabling the illumination transmitter and the noise transmitter which are connected with the processing program to respectively acquire a current illumination signal and a current noise signal in the power distribution station room after receiving the inspection starting instruction, and respectively transmitting the current illumination signal and the current noise signal as a first illumination result and a first noise result back to the controller of the testing device to execute corresponding processing;

the packaging program is used for locally analyzing the acquired sensor signals after all the sensor signals are acquired, analyzing the acquired signals, transmitting the analyzed acquired signals, the longitude and latitude values of the position of the testing device and the current time value uploaded by each sensor signal to a background system through a mobile communication module after packaging to form routing inspection signals;

the processing program is also used for transmitting a closing instruction to an infrared switch connected in series between the indoor lighting lamp of the power distribution station and the power supply thereof and an infrared switch connected in series between the air conditioner and the power supply thereof through the infrared transmitting module to disconnect the infrared switch; the controller is used for acquiring a current illumination signal and a current noise signal in the power distribution station room, and respectively transmitting the current illumination signal and the current noise signal as a second illumination result and a second noise result back to the testing device; when the ratio of the second illuminance result to the first illuminance result is less than 0.7 or the two illuminance results are both less than 10Lx, and the ratio of the second noise result to the first noise result is less than 0.7 or the two noise results are both less than 40db, the indoor lighting lamps and air conditioners of the power distribution station are considered to be turned off; the method comprises the steps of obtaining sensor signals collected by all sensors in a sensor group in real time, and obtaining the longitude and latitude values of the corresponding testing device position and the current time value uploaded by the sensor signals through a GPS module or a Beidou module when the sensor signals transmitted by one sensor are obtained.

7. The distribution substation room state testing platform of claim 6, wherein the packaging program is further configured to issue an immediate call signal instruction to a sensor that does not upload a sensor signal 2 minutes after the controller of the testing device receives the patrol starting instruction if all sensor signals are not acquired by the controller of the testing device, and determine that the sensor signal acquisition has failed if all sensor signals cannot be acquired after 2 consecutive times of issuing the immediate call signal instruction.

8. The substation room status testing platform of claim 7, wherein the programs running on the background system further comprise an identification program, an adjustment program, and a transmission program;

the transmission program is used for continuously acquiring 1000 times of signals when the condition determination result is abnormal and the acquired signals are suspected to be abnormal, and after the acquisition frequency of the sensors is changed, the judgment result of the sensors is not suspected to be abnormal, the background system issues a default acquisition cycle instruction to the controller of the testing device, and the controller of the testing device recovers the initial signal acquisition cycle of the sensors;

the identification program is also used for judging whether the local discharge signal acquired by the local discharge sensor in the routing inspection signal is suspected to be abnormal when the maximum value of the local discharge signal is higher than 40db or the local discharge signal exceeds the maximum value of the local discharge signal in the signal base or is higher than 1.5 times of the average value of the historical local discharge signal;

the adjusting program is also used for continuously keeping the acquisition frequency of the existing sensor if the condition is determined to be normal;

the transmission program is also used for continuously acquiring 1000 times of signals when the condition identification result is abnormal and the acquired signals are suspected to be abnormal after the acquisition frequency of the sensors is changed, wherein the frequency of the suspected abnormal signals is more than 10% of the power distribution station room where the sensors are located, or the frequency of the suspected abnormal signals is more than 5% of the power distribution station room where the sensors are located, and the background system automatically judges the power distribution station room as the abnormal station room.