CN116434495B - Operation construction hidden danger early warning system and method based on electric power Internet of things - Google Patents
Operation construction hidden danger early warning system and method based on electric power Internet of things Download PDFInfo
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- CN116434495B CN116434495B CN202310673772.0A CN202310673772A CN116434495B CN 116434495 B CN116434495 B CN 116434495B CN 202310673772 A CN202310673772 A CN 202310673772A CN 116434495 B CN116434495 B CN 116434495B
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- G—PHYSICS
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
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- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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Abstract
The invention discloses an operation construction hidden danger early warning system and method based on an electric power internet of things, and relates to the technical field of electric power construction safety early warning. The early warning identification module receives the data packet broadcast by the ZigBee module by adopting the ZigBee transceiver module, analyzes the data packet to obtain the transmission intensity of the ZigBee module, outputs the early warning result that the high-voltage shielding device has the electric leakage risk if the signal intensity of at least one ZigBee module is lower than the set threshold value, and alarms by using the audible and visual alarm, so that the electric shock risk of live working of the power transmission line can be greatly reduced.
Description
Technical Field
The invention relates to the technical field of electric power construction safety early warning, in particular to an operation construction hidden danger early warning system and method based on an electric power Internet of things.
Background
With the gradual popularization of power system applications, the operational reliability and safety problems thereof become more and more important. The power faults are main factors influencing the normal operation of the power system, the current common power faults mainly comprise power equipment and facility faults and the like, and timely operation, overhaul and construction on the common power faults become important measures for improving the operation efficiency of the power system.
The live working of the power transmission line is an important technical measure for ensuring the safe and economic operation of the power grid, is an indispensable technical measure for improving the power supply reliability and the equipment integrity, is a great technical result in the power production, and has scientific method, safe operation, no time limitation on the maintenance operation at any time and obvious benefit. With the continuous development of economic construction in China, improving the power supply reliability has become an important task for the current power department, which requires that we have to carry out live working overhaul and maintenance work greatly so as to improve the power supply reliability and improve the quality of the electric energy supplied to users.
However, in many cases of live working of the power transmission line, a manual direct working mode is adopted, and tools frequently used in live working include an insulating rope, an insulating ladder, an insulating operating rod, a shielding clothes and the like, and although the live working has scientific and reliable operation rules and tools, safety accidents of the manual live working still inevitably occur.
At present, live working is mainly carried out by means of a high-voltage shielding garment and a shielding cover according to a distribution line live working technology guide rule GB/T18857, and live working of a power transmission line, particularly live working of a high-voltage power transmission line is mainly carried out by means of a high-voltage shielding garment and a shielding cover, wherein the working principle of the high-voltage shielding garment and the shielding cover is based on the principle that metal balls are placed in a strong electric field, and the internal electric field is zero. It is formed by uniformly weaving tussah silk in warp and weft directions and is wrapped by metal wires (stainless steel wires or copper wires). It is like a special metal net cover, and can make the electric field intensity on the surface of human body uniform and minimum. The shielding efficiency of a set of good high-voltage shielding clothes can reach 99.9%, so that almost all current flowing through a human body flows through the high-voltage shielding clothes during working, and the human body is protected.
However, no matter how good the protective effect of the high-voltage shielding clothes and the shielding cover is, the situation that part or small part is invalid when the shielding cover is scratched by unknown burrs or other objects during operation exists, and if abnormality of the shielding cover cannot be found in time for early warning, electric shock accidents are likely to occur, and personal safety of operators is endangered.
Disclosure of Invention
In order to early warn operation construction hidden danger, the invention provides an operation construction hidden danger early warning system and method based on an electric power Internet of things. The following technical scheme is adopted:
the utility model provides an operation construction hidden danger early warning system based on electric power thing networking, includes high-voltage shielding device, electric shock early warning collection system, early warning identification module and early warning device, high-voltage shielding device is used for providing electric field isolation for operation constructor health, electric shock early warning collection system installs the surface at high-voltage shielding device for the protection leak source that exists when gathering high-voltage shielding device operation, electric shock early warning collection system and early warning identification module wireless communication connection, early warning identification module analyzes the data of electric shock early warning collection system transmission to control early warning device's switch according to the analysis result.
Optionally, the high-voltage shielding device comprises a high-voltage shielding garment, a shielding cover and a shielding blanket, wherein the high-voltage shielding garment is worn on the surface of an operator, provides electric field isolation protection for the operator, and the shielding cover and the shielding blanket are respectively used for covering exposed parts near the operation.
Optionally, electric shock early warning collection system includes flexible overburden and a plurality of wireless transmission module based on thing networking, the surface at shielding cover and shielding blanket is installed to one side of flexible overburden, and a plurality of wireless transmission module are installed respectively at the opposite side of flexible overburden to even array arrangement, a plurality of wireless transmission module respectively with early warning identification module wireless communication connection, early warning identification module judges whether there is the protection leak source based on the signal state of a plurality of wireless transmission module transmission.
By adopting the technical scheme, the high-voltage shielding device generally refers to some necessary equipment for live working, such as high-voltage shielding clothes, shielding covers, shielding blankets and the like, the shielding covers and the shielding blankets are covered at exposed points with contact risks on the working radius in the early working period, the high-voltage shielding clothes are worn on the body surface of the working personnel, so that reliable electric field shielding is formed for the body of the working personnel, and the electric shock risks are avoided, however, the shielding equipment is scratched by unknown burrs or other objects to cause local or small-part failure when working, and then if abnormal early warning of the high-voltage shielding clothes and the shielding covers cannot be timely found, electric shock accidents are likely to occur;
the electric shock early warning acquisition device is used for acquiring the protective leakage points existing during operation of the high-voltage shielding device, the mode of acquiring the protective leakage points can be that a plurality of wireless transmission modules are used for indirectly monitoring, if the protective leakage points appear at a certain place, a high-voltage electric field of a power transmission line can penetrate through the leakage points to strongly influence signal transmission of the nearest wireless transmission module in the plurality of wireless transmission modules arranged on the flexible covering layer, and even the wireless transmission modules can be broken down, so that the purpose of monitoring whether the protective leakage points appear or not can be achieved through monitoring the signal intensity of the wireless transmission modules, at least, the risk of the protective leakage points is at least realized, the early warning identification module needs to timely inform an operator through the early warning device, the operator needs to stop live working immediately, the electric shock risk is avoided, and after all shielding equipment needs to be replaced to be confirmed, the live working can be performed again.
Optionally, the flexible covering layer is a square film made of flexible insulating materials and having a thickness smaller than 1mm, one side of the square film is arranged on the outer surfaces of the high-voltage shielding clothes, the shielding cover and the shielding blanket through magic adhesion, and the plurality of wireless transmission modules are respectively adhered to the other side of the flexible covering layer through glue.
Through adopting above-mentioned technical scheme, the flexible overburden adopts the square flexible insulating material membrane that thickness is less than 1mm, just so can conveniently glue the surface of installing at high pressure shielding clothes, shielding cover and shielding blanket through the magic, do not produce too much structural influence to high pressure shielding clothes, shielding cover and shielding blanket etc. and the flexible overburden is in fact only wireless transmission module's installation carrier, and the modularization of being convenient for is installed in large tracts of land regions such as high pressure shielding clothes front chest and back.
Optionally, the wireless transmission module is a ZigBee module, the size is smaller than 15×15×3mm, the plurality of wireless transmission modules are arranged on the outer layer of the flexible covering layer in a triangular array, and three adjacent wireless transmission modules form an equilateral triangle, and the side length is smaller than 100mm.
Through adopting above-mentioned technical scheme, wireless transmission module adopts the zigBee module, the zigBee module is from taking the power supply, small, minimum zigBee module can accomplish the size of side length 10mm square, it is still little than the nail lid, consequently, a plurality of zigBee modules bond behind flexible overburden surface, can not influence normal live working, the zigBee module receives external electric field to influence greatly simultaneously, because of its power is very little, the very big probability can produce strong influence to the zigBee module if appear protecting the leak source around the zigBee module, moreover can appear damaging the condition, equilateral triangle is constituteed to adjacent three wireless transmission module, the side length is less than 100mm, can make the monitoring cover of protecting the leak source more even like this, avoid appearing monitoring dead angle.
Optionally, early warning identification module includes casing, zigBee transceiver module, AI chip and the power module that is used for analyzing zigBee signal strength, the casing is installed outside high-pressure shielding clothes to be located the shoulder, the casing surface sets up honeycomb, is used for wireless transmission module's signal to pass, zigBee transceiver module respectively with a plurality of wireless transmission module wireless communication network deployment, and carry out the serial number to a plurality of wireless transmission module, AI chip and zigBee transceiver module's data interface communication connection, AI chip reads the RSSI value of a plurality of wireless transmission module transmission data, when judging that there is at least one wireless transmission module's signal strength to be less than the settlement threshold value, then output high-pressure shield device has the early warning result of electric leakage risk, power module is zigBee transceiver module, AI chip and early warning device power supply respectively.
Through adopting above-mentioned technical scheme, early warning identification module adopts zigBee transceiver module to receive the data package that zigBee module broadcast, and the rethread AI chip analysis data package obtains the transmission intensity of zigBee module, if appear that at least one wireless transmission module's signal strength is less than the settlement threshold value, just output high voltage shield assembly has the early warning result of electric leakage risk, because numbered zigBee module, follow-up still can discern the result that the zigBee module of output corresponding number appears the risk, can realize the fault report again in cooperation with the voice module, the maintainer of being convenient for overhauls fast and accurately.
Optionally, the AI chip transmits the on-off instruction to the plurality of wireless transmission modules through the ZigBee transceiver module.
Through adopting above-mentioned technical scheme, realize wireless switch-on operation, can be when idle not operation with each electric device close, greatly increased zigBee module's life.
Optionally, the early warning device is an audible and visual alarm, the early warning device is installed on the top surface of the shell, the AI chip controls the switch of the early warning device, and when the AI chip outputs the early warning result that the high-voltage shielding device has the leakage risk, the early warning device is controlled to start alarming.
Through adopting above-mentioned technical scheme, audible and visual alarm sets up on the top surface of casing, and the position is located operation personnel's shoulder, and when audible and visual alarm sent the warning, operation personnel can know immediately.
The operation construction hidden danger early warning method based on the electric power Internet of things comprises the following specific steps:
step 1, before live working construction, covering a shielding cover and a shielding blanket on the outer surfaces of exposed points according to live working regulations, wearing high-voltage shielding clothing by operators, and bonding a plurality of flexible covering layers on the main outer surfaces of the shielding cover and the shielding blanket by auxiliary operators in a magic sticking mode;
step 2, starting an early warning identification module, wherein an AI chip respectively transmits a starting command to a plurality of wireless transmission modules through a ZigBee transceiver module, and the wireless transmission modules broadcast continuous data streams outwards, wherein the data streams are continuous numbers;
step 3, the ZigBee transceiver module receives continuous wireless signals broadcasted by a plurality of wireless transmission modules with corresponding numbers in real time, the AI chip receives RSSI values of data transmitted by the plurality of wireless transmission modules by reading the ZigBee transceiver module, transcodes the RSSI values to obtain signal intensity values X with the unit of dBm, sets the signal intensity of the wireless transmission modules at a distance of 1 meter as Y, sets a threshold value of 10Y, and outputs an early warning result that the high-voltage shielding device has a leakage risk when the AI chip judges that the real-time signal intensity value X of at least one wireless transmission module is smaller than 10Y;
step 4, the AI chip controls the early warning device to start alarming;
and 5, immediately stopping live working by the operator.
Optionally, the AI chip obtains the variable aflncomingmsgacket_t- > RSSI by analyzing an aflncomingmsgacket_t structure in the data packet received by the ZigBee transceiver module, and obtains the RSSI value.
By adopting the above technical scheme, the structure body where the RSSI is located is aflncomingmsgacket_t, and in the structure body, two member variables are related to communication quality. They are respectively: aflncompingmsgpacket_t— rsti and rstirsisifefincomina msgpacket_t > inkQuality, wherein rsti: received signal strength indicator, the received signal strength indication, is the most obvious signal strength value. The data type is int8 type and is complementary, so the data needs to be converted into original code for display. The RSSI value is a value from negative to 0, in dBm so the actual signal strength value is: 0 xFFrsti (negative complement to original code).
In summary, the present invention includes at least one of the following beneficial technical effects:
the invention can provide the operation construction hidden danger early warning system and method based on the electric power Internet of things, abandons the mode that the traditional live working of the power transmission line only depends on an electroscope to perform electric leakage early warning before construction, the early warning recognition module adopts the ZigBee transceiver module to receive the data packet broadcasted by the ZigBee module, analyzes the data packet to obtain the transmission intensity of the ZigBee module, outputs the early warning result that the high-voltage shielding device has the electric leakage risk if the signal intensity of at least one ZigBee module is lower than a set threshold value, and alarms through the audible and visual alarm, thereby greatly reducing the electric shock risk of the live working of the power transmission line.
Drawings
FIG. 1 is a schematic diagram of the architecture principle of the operation construction hidden danger early warning system based on the electric power Internet of things;
fig. 2 is a schematic diagram of a state that an electric shock early warning acquisition device of an operation construction hidden danger early warning system based on the electric power internet of things is installed on a shielding blanket;
FIG. 3 is a schematic diagram of an electric shock warning collection device of the operation construction hidden danger warning system based on the electric power Internet of things;
fig. 4 is a schematic diagram of the connection principle of the electric device of the operation construction hidden danger early warning system based on the electric power internet of things.
Reference numerals illustrate: 11. high-voltage shielding clothing; 12. a shielding cover; 13. a shielding blanket; 21. a flexible cover layer; 22. a wireless transmission module; 31. a housing; 32. a ZigBee transceiver module; 33. an AI chip; 34. a power supply module; 100. and an early warning device.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment of the invention discloses an operation construction hidden danger early warning system and method based on an electric power Internet of things.
Referring to fig. 1-4, the operation construction hidden danger early warning system based on the electric power internet of things comprises a high-voltage shielding device, an electric shock early warning acquisition device, an early warning identification module and an early warning device 100, wherein the high-voltage shielding device is used for providing electric field isolation for the body of an operation constructor, the electric shock early warning acquisition device is arranged on the surface of the high-voltage shielding device and used for acquiring a protection leakage point existing during operation of the high-voltage shielding device, the electric shock early warning acquisition device is in wireless communication connection with the early warning identification module, and the early warning identification module analyzes data transmitted by the electric shock early warning acquisition device and controls the switch of the early warning device 100 according to an analysis result.
The high-voltage shielding device comprises a high-voltage shielding clothes 11, a shielding cover 12 and a shielding blanket 13, wherein the high-voltage shielding clothes 11 is worn on the surface of an operator to provide electric field isolation protection for the operator, and the shielding cover 12 and the shielding blanket 13 are respectively used for covering exposed parts near the operation.
The electric shock early warning collection device comprises a flexible covering layer 21 and a plurality of wireless transmission modules 22 based on the Internet of things, one side of the flexible covering layer 21 is installed on the outer surfaces of the shielding cover 12 and the shielding blanket 13, the plurality of wireless transmission modules 22 are respectively installed on the other side of the flexible covering layer 21 and are uniformly arranged in an array mode, the plurality of wireless transmission modules 22 are respectively connected with the early warning recognition module in a wireless communication mode, and the early warning recognition module judges whether a protective leakage point exists or not based on signal states transmitted by the plurality of wireless transmission modules 22.
The high-voltage shielding device generally refers to some necessary equipment for live working, such as a high-voltage shielding clothes 11, a shielding cover 12, a shielding blanket 13 and the like, the shielding cover 12 and the shielding blanket 13 are covered at exposed points with contact risks on the working radius in the early working period, the high-voltage shielding clothes 11 are worn on the body surface of a worker, so that reliable electric field shielding is formed for the body of the worker, and electric shock risks are avoided, however, when the shielding equipment is in operation, partial or small-part failure occurs due to the fact that unknown burrs or other objects are scraped, and at the moment, if abnormal early warning of the high-voltage shielding clothes and the shielding cover cannot be timely found, electric shock accidents are likely to occur;
the electric shock early warning collection device is used for collecting the protective leakage points existing during operation of the high-voltage shielding device, the mode of collecting the protective leakage points can be that a plurality of wireless transmission modules 22 are used for indirect monitoring, if the protective leakage points appear somewhere, a high-voltage electric field of a power transmission line can penetrate through the leakage points to strongly influence signal transmission of the nearest wireless transmission module 22 in the plurality of wireless transmission modules 22 arranged on the flexible covering layer 21, and even break through the wireless transmission modules 22, so that the purpose of monitoring whether shielding of the protective leakage points appears or not can be achieved through monitoring the signal intensity of the wireless transmission modules 22, at least, the risk of the protective leakage points is at least achieved, at the moment, the early warning identification module needs to timely inform operators through the early warning device 100, the operators need to stop live working immediately, electric shock risks are avoided, and after other operators are informed of the ground, all shielding equipment needs to be replaced, and live working can be conducted again after the condition that no protective leakage points are confirmed.
The flexible covering layer 21 is a square film made of flexible insulating material and having a thickness of less than 1mm, one side of the square film is mounted on the outer surfaces of the high-voltage shielding clothes 11, the shielding cover 12 and the shielding blanket 13 through magic tapes, and the plurality of wireless transmission modules 22 are respectively bonded on the other side of the flexible covering layer 21 through glue.
The flexible covering layer 21 adopts square flexible insulating material films with the thickness smaller than 1mm, so that the flexible covering layer 21 can be conveniently installed on the outer surfaces of the high-voltage shielding clothes 11, the shielding cover 12 and the shielding blanket 13 through magic adhesion, excessive structural influences on the high-voltage shielding clothes 11, the shielding cover 12, the shielding blanket 13 and the like are avoided, the flexible covering layer 21 is only an installation carrier of the wireless transmission module 22 in fact, and the flexible covering layer 21 is convenient to install in large-area areas such as the front chest and the back of the high-voltage shielding clothes 11 in a modularized mode.
The wireless transmission modules 22 are ZigBee modules, the size of each wireless transmission module is smaller than 15 multiplied by 3mm, a plurality of wireless transmission modules 22 are arranged on the outer layer of the flexible covering layer 21 in a triangular array, and three adjacent wireless transmission modules 22 form an equilateral triangle, and the side length of each wireless transmission module is smaller than 100mm.
The wireless transmission module 22 adopts the zigBee module, the zigBee module is from taking the power supply, small, minimum zigBee module can accomplish the size of side length 10mm square, it is still little than the nail lid, consequently, a plurality of zigBee modules bond behind flexible overburden 21 surface, and can not influence normal live working, the zigBee module receives external electric field to influence greatly simultaneously, because its power is very little, if the protection leak source appears around the zigBee module, very big probability can produce strong influence to the zigBee module, and the condition of damage can appear in addition, equilateral triangle is constituteed to adjacent three wireless transmission module 22, the side length is less than 100mm, can make the monitoring cover of protection leak source more even like this, avoid appearing monitoring dead angle.
The early warning identification module comprises a shell 31, a ZigBee transceiver module 32, an AI chip 33 for analyzing ZigBee signal intensity and a power supply module 34, wherein the shell 31 is mounted outside the high-voltage shielding suit 11 and is positioned at a shoulder, a honeycomb structure is arranged on the surface of the shell 31 and is used for enabling signals of the wireless transmission module 22 to pass through, the ZigBee transceiver module 32 is respectively in wireless communication networking with the plurality of wireless transmission modules 22 and numbering the plurality of wireless transmission modules 22, the AI chip 33 is in communication connection with a data interface of the ZigBee transceiver module 32, the AI chip 33 reads RSSI values of data transmitted by the plurality of wireless transmission modules 22, when judging that the signal intensity of at least one wireless transmission module 22 is lower than a set threshold value, the early warning result of the high-voltage shielding device with leakage risk is output, and the power supply module 34 respectively supplies power to the ZigBee transceiver module 32, the AI chip 33 and the early warning device 100.
The early warning identification module adopts the zigBee transceiver module 32 to receive the data packet that zigBee module broadcast, and the rethread AI chip 33 analysis data packet obtains the transmission intensity of zigBee module, if appear that at least one wireless transmission module 22 signal intensity is less than the settlement threshold value, just output high voltage shield assembly has the early warning result of electric leakage risk, because numbered zigBee module, follow-up still can discern the result that the zigBee module of output corresponding number appears the risk, can realize the fault report again to cooperate the voice module, the maintainer of being convenient for overhauls fast and accurately.
The AI chip 33 transmits a startup and shutdown instruction to the plurality of wireless transmission modules 22 through the ZigBee transceiver module 32, respectively.
The wireless on-off operation is realized, and each electric device can be closed when the wireless on-off operation is not performed, so that the service life of the ZigBee module is greatly prolonged.
The early warning device 100 is an audible and visual alarm, the early warning device 100 is installed on the top surface of the shell 31, the AI chip 33 controls the switch of the early warning device 100, and when the AI chip 33 outputs the early warning result that the high-voltage shielding device has the risk of leakage, the early warning device 100 is controlled to start alarming.
The audible and visual annunciator is provided on the top surface of the housing 31 at a position on the shoulder of the operator, and when the audible and visual annunciator gives an alarm, the operator can immediately know.
The operation construction hidden danger early warning method based on the electric power Internet of things comprises the following specific steps:
step 1, before live working construction, covering the outer surfaces of exposed points with a shielding cover 12 and a shielding blanket 13 according to live working regulations, wearing a high-voltage shielding suit 11 by an operator, and adhering a plurality of flexible covering layers 21 on the main outer surfaces of the shielding cover 12 and the shielding blanket 13 by an auxiliary operator in a magic adhesive mode;
step 2, starting an early warning identification module, wherein the AI chip 33 respectively transmits starting instructions to the plurality of wireless transmission modules 22 through the ZigBee transceiver module 32, and the wireless transmission modules 22 broadcast continuous data streams outwards, wherein the data streams are continuous numbers;
step 3, the ZigBee transceiver module 32 receives continuous wireless signals broadcasted by the plurality of wireless transmission modules 22 with corresponding numbers in real time, the AI chip 33 receives RSSI values of data transmitted by the plurality of wireless transmission modules 22 by reading the ZigBee transceiver module 32, transcodes the RSSI values to obtain a signal strength value X with a unit of dBm, sets the signal strength of the wireless transmission modules 22 at a distance of 1 meter as Y, sets a threshold 10Y, and outputs an early warning result that the high voltage shielding device has a leakage risk when the AI chip 33 determines that at least one real-time signal strength value X of the wireless transmission modules 22 is smaller than 10Y;
step 4, the ai chip 33 controls the early warning device 100 to start warning;
and 5, immediately stopping live working by the operator.
The AI chip 33 obtains the variable aflncomingmsgacket_t- > rsi by parsing the aflncomingmsgacket_t structure in the data packet received by the ZigBee transceiver module 32.
The structure where the RSSI is located is aflncomingmsgacket_t, where there are two member variables related to the communication quality. They are respectively: aflncompingmsgpacket_t— rsti and rstirsisifefincomina msgpacket_t > inkQuality, wherein rsti: received signal strength indicator, the received signal strength indication, is the most obvious signal strength value. The data type is int8 type and is complementary, so the data needs to be converted into original code for display. The RSSI value is a value from negative to 0, in dBm so the actual signal strength value is: 0 xFFrsti (negative complement to original code).
Because the ZigBee transceiver module 32 and the ZigBee module may be shielded before, the reception intensity of the ZigBee transceiver module 32 may be affected, but as long as the signal broadcast by the ZigBee module is within the range of 3-5 meters, the intensity attenuation after the signal is received by the ZigBee transceiver module 32 should not exceed 50%. Setting the threshold to 10% standard signal strength does not result in a false alarm condition.
The embodiment of the invention provides an operation construction hidden danger early warning system and method based on the electric power internet of things, wherein the implementation principle is as follows:
under the specific construction application of live line replacement joint construction of a power transmission line, before live line construction, covering the outer surfaces of exposed points with a shielding cover 12 and a shielding blanket 13 according to live line operation regulations, wearing a high-voltage shielding suit 11 by an operator, and adhering a plurality of flexible covering layers 21 on the main outer surfaces of the shielding cover 12 and the shielding blanket 13 by an auxiliary operator in a magic adhesive mode;
starting an early warning identification module, wherein the AI chip 33 respectively transmits starting instructions to the plurality of wireless transmission modules 22 through the ZigBee transceiver module 32, and the wireless transmission modules 22 broadcast continuous data streams outwards, wherein the data streams are continuous numbers;
at a certain time node, the ZigBee transceiver module 32 receives the continuous wireless signal broadcast by the ZigBee module numbered 20, and the AI chip 33 receives the RSSI values of the data transmitted by the plurality of wireless transmission modules 22 by reading the ZigBee transceiver module 32, and transcodes the RSSI values, where the transcoding code is exemplified as follows:
rssibuf0]=“-”；
rssi buf[1]=pkt->rssi/10+0x30；
rssi_buf[2]=pkt->rssi%10+0x30；
HalUARTWriteSrssibuf3)；
the obtained signal intensity value X= -350dBm, the signal intensity of the wireless transmission module 22 at a distance of 1 meter is set to be-10 dBm, a threshold value 10Y is set, at the moment, X is smaller than 10Y, the AI chip 33 judges that the 22 # ZigBee module has a protection leakage risk, and an early warning result of the high-voltage shielding device having a leakage risk is output;
the AI chip 33 controls the early warning device 100 to start audible and visual alarm;
the live working is stopped immediately by the operator, after the equipment is correspondingly checked, the risky shielding equipment is replaced, and then the live working can be continued, so that the electric shock risk of the operator is avoided.
The above embodiments are not intended to limit the scope of the present invention, and therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (5)
1. Operation construction hidden danger early warning system based on electric power thing networking, its characterized in that: the electric shock warning device comprises a high-voltage shielding device, an electric shock warning collecting device, a warning identifying module and a warning device (100), wherein the high-voltage shielding device is used for providing electric field isolation for the body of an operation constructor, the electric shock warning collecting device is arranged on the surface of the high-voltage shielding device and is used for collecting a protection leakage point existing during operation of the high-voltage shielding device, the electric shock warning collecting device is in wireless communication connection with the warning identifying module, and the warning identifying module analyzes data transmitted by the electric shock warning collecting device and controls the switch of the warning device (100) according to an analysis result;
the high-voltage shielding device comprises a high-voltage shielding garment (11), a shielding cover (12) and a shielding blanket (13), wherein the high-voltage shielding garment (11) is worn on the surface of an operator to provide electric field isolation protection for the operator, and the shielding cover (12) and the shielding blanket (13) are respectively used for covering exposed parts near the operation;
the electric shock early warning acquisition device comprises a flexible covering layer (21) and a plurality of wireless transmission modules (22) based on the Internet of things, wherein one side of the flexible covering layer (21) is arranged on the outer surfaces of a shielding cover (12) and a shielding blanket (13), the plurality of wireless transmission modules (22) are respectively arranged on the other side of the flexible covering layer (21) and are uniformly arranged in an array manner, the plurality of wireless transmission modules (22) are respectively connected with the early warning identification modules in a wireless communication manner, and the early warning identification modules judge whether protection leakage points exist or not based on signal states transmitted by the plurality of wireless transmission modules (22);
the flexible covering layer (21) is a square film made of flexible insulating materials and having a thickness of less than 1mm, one side of the square film is arranged on the outer surfaces of the high-voltage shielding clothes (11), the shielding cover (12) and the shielding blanket (13) through magic tapes, and the plurality of wireless transmission modules (22) are respectively adhered to the other side of the flexible covering layer (21) through glue;
the wireless transmission modules (22) are ZigBee modules, the size of each wireless transmission module is smaller than 15 multiplied by 3mm, the plurality of wireless transmission modules (22) are arranged on the outer layer of the flexible covering layer (21) in a triangular array, three adjacent wireless transmission modules (22) form an equilateral triangle, and the side length of each wireless transmission module is smaller than 100mm;
the early warning identification module comprises a shell (31), a ZigBee transceiver module (32), an AI chip (33) for analyzing ZigBee signal intensity and a power supply module (34), wherein the shell (31) is mounted outside the high-voltage shielding clothes (11) and located at the shoulder, a honeycomb structure is arranged on the surface of the shell (31), signals of the wireless transmission module (22) penetrate through the shell, the ZigBee transceiver module (32) is respectively in wireless communication networking with the plurality of wireless transmission modules (22) and numbering the plurality of wireless transmission modules (22), the AI chip (33) is in communication connection with a data interface of the ZigBee transceiver module (32), the AI chip (33) reads RSSI values of data transmitted by the plurality of wireless transmission modules (22), when judging that the signal intensity of at least one wireless transmission module (22) is lower than a set threshold, early warning results of the high-voltage shielding device with leakage risks are output, and the power supply module (34) is respectively used for the ZigBee transceiver module (32), the AI chip (33) and the early warning device (100).
2. The operation construction hidden danger early warning system based on the electric power internet of things according to claim 1, wherein: the AI chip (33) transmits switching-on and switching-off instructions to the plurality of wireless transmission modules (22) through the ZigBee transceiver module (32) respectively.
3. The operation construction hidden danger early warning system based on the electric power internet of things according to claim 1, wherein: the early warning device (100) is an audible and visual alarm, the early warning device (100) is arranged on the top surface of the shell (31), the AI chip (33) controls the switch of the early warning device (100), and when the AI chip (33) outputs an early warning result that the high-voltage shielding device has an electric leakage risk, the early warning device (100) is controlled to start alarming.
4. The operation construction hidden danger early warning method based on the electric power Internet of things is characterized in that the operation construction hidden danger early warning system based on the electric power Internet of things is adopted to early warn live operation, and the specific method is as follows:
step 1, before live working construction, covering the outer surfaces of exposed points with a shielding cover (12) and a shielding blanket (13) according to a live working rule, wearing a high-voltage shielding garment (11) by an operator, and adhering a plurality of flexible covering layers (21) to the main outer surfaces of the shielding cover (12) and the shielding blanket (13) by an auxiliary operator in a magic adhesive mode;
step 2, starting an early warning identification module, wherein an AI chip (33) respectively transmits a starting instruction to a plurality of wireless transmission modules (22) through a ZigBee transceiver module (32), and the wireless transmission modules (22) broadcast continuous data streams outwards, wherein the data streams are continuous numbers;
step 3, the ZigBee transceiver module (32) receives continuous wireless signals broadcast by a plurality of wireless transmission modules (22) with corresponding numbers in real time, the AI chip (33) receives RSSI values of data transmitted by the plurality of wireless transmission modules (22) by reading the ZigBee transceiver module (32), the RSSI values are transcoded to obtain signal strength values X with the unit of dBm, the signal strength of the wireless transmission modules (22) at a distance of 1 meter is set as Y, a threshold value 10Y is set, and when the AI chip (33) judges that the real-time signal strength value X of at least one wireless transmission module (22) is smaller than 10Y, an early warning result that the high-voltage shielding device has a leakage risk is output;
step 4, the AI chip (33) controls the early warning device (100) to start alarming;
and 5, immediately stopping live working by the operator.
5. The operation construction hidden danger early warning method based on the electric power internet of things according to claim 4, which is characterized in that: the AI chip (33) obtains a variable aflncomingMSGPacket_t- > RSSI by analyzing an aflncomingMSGPacket_t structure in a data packet received by the ZigBee transceiver module (32).
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