CN111812415A - Method and device for monitoring substation worker to contact power frequency electromagnetic field - Google Patents
Method and device for monitoring substation worker to contact power frequency electromagnetic field Download PDFInfo
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Abstract
The embodiment of the invention relates to a monitoring method and a device for a substation worker to contact a power frequency electromagnetic field, wherein a power frequency electromagnetic field detection device is worn on a power worker through a data acquisition unit, so that electric field data, magnetic field data and regional working time of the power frequency electromagnetic field contacted by the power worker during working can be directly detected, the accuracy of the detected electric field data and magnetic field data is high, the short-time electric field value, the short-time magnetic field value and the long-time electric field value are respectively compared with a short-time electric field contact limit value, a short-time magnetic field contact limit value and 5kV/m one by one, whether the short-time electric field contact limit value, the short-time magnetic field contact limit value and 5kV/m exceed the short-time electric field contact limit value, the short-time magnetic field contact limit value and the 5kV/m are judged, if the short-time electric field contact, and sending different warning information according to the judgment result to remind the electric power workers, so that the electric power workers can work safely.
Description
Technical Field
The invention relates to the technical field of electric power personnel safety, in particular to a method and a device for monitoring the contact of substation workers with a power frequency electromagnetic field.
Background
Power frequency electromagnetic fields (EMF) are lines of "force" that are invisible to the naked eye around any electrical device, and are generated by power transmission lines, electrical wires, and electrical devices.
The personnel that work in the electric power system trade mostly work around power equipment, and power equipment can produce the power frequency electromagnetic field, and the power frequency electromagnetic field is harmful to personnel's health, in order to guarantee that personnel's health can not be harmd by the power frequency electromagnetic field, need carry out the contact power frequency electromagnetic field to the staff of electric power trade and detect, obtain the power frequency electromagnetic field data that the staff contacted, according to present occupational health standard "workplace harmful factor occupational contact limit 2 part: physical factors (GBZ 2.2.2-2007) stipulate that the occupational contact limit value of a power frequency electric field in a work place of 8h is 5kV/m, and the working frequency electromagnetic field data contacted by a worker is judged, whether the worker is in safe operation or not is judged, and the condition that the physical health of the worker is damaged when the power frequency electromagnetic field contacted by the worker exceeds the contact limit value is avoided.
The detection method and the equipment for the contact of the personnel with the power frequency electromagnetic field in the current market are used for testing a certain measuring point of a workplace of the personnel in a short time, such as: and continuously measuring for 3 times at each measuring point, wherein the measuring time is not less than 15s, and reading the maximum value of the stable state as the measured value of the power frequency electromagnetic field at the point. If the measurement reading has large fluctuation, the measurement time is properly prolonged, and the average of the three values is taken as the measured value of the power frequency electromagnetic field at the point. The detection method does not reflect the actual power frequency electric field size actually contacted by an operator, nor the power frequency electric field size accumulated by the operator for a long time, and the detected power frequency electric field size of the operator contacted with the power frequency electric field is inaccurate, and cannot be directly compared and evaluated with a limit standard (the professional contact limit of the power frequency electric field in an 8h workplace is 5 kV/m).
Disclosure of Invention
The embodiment of the invention provides a method and a device for monitoring the contact of a transformer substation worker with a power frequency electromagnetic field, which are used for solving the technical problems that the numerical value of the contact of the existing detector with the power frequency electromagnetic field is inaccurate, the operation health of the worker cannot be accurately identified, and the personal safety of the worker is gradually influenced.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
a method for monitoring the contact of substation workers with a power frequency electromagnetic field comprises the following steps:
the power frequency electromagnetic field detection device is worn on an electric power worker, and electric field data, magnetic field data and position information of the electric power worker contacting a power frequency electromagnetic field during working and the working time of the electric power worker in a certain region contacting the power frequency electromagnetic field are obtained;
processing the electric field data and the magnetic field data to obtain a short-time electric field value, a short-time magnetic field value and a long-time electric field value; processing the electric field data of a certain area according to the position information to obtain an area working time limit value;
if the short-time electric field value is larger than the short-time electric field contact limit value, or the short-time magnetic field data is larger than the short-time magnetic field contact limit value, or the long-time electric field value is larger than 5kV/m, an alarm is given;
if the area working time is not less than 50% of the limit value of the area working time, an early warning is sent out to inform electric power workers; if the area working time is greater than the area working time limit value, an alarm is given;
and the long-term electric field value is a time weighted average value of electric field data of the power frequency electromagnetic field contacted by the power worker in the working time.
Preferably, the method for monitoring the substation worker to contact with the power frequency electromagnetic field further comprises the following steps: expression for time weighted average:
in the formula, E is the time weighted average value of the power frequency electromagnetic field contacted by the power worker in the activity time, T is the standard working time of the power worker in one day, TiFor the time of contact of the power frequency electromagnetic field by the power operator in region i, EiThe electric field intensity of the power frequency electromagnetic field is contacted by the electric power worker in the region i, n is the number n of regions where the electric power worker works, and i is 1-n.
Preferably, the method for monitoring the substation worker contacting the power frequency electromagnetic field further comprises the following steps: acquiring electric field data of a power frequency electromagnetic field contacted by a power frequency worker during working from the power frequency electromagnetic field detection device at intervals t; the time t is less than or equal to 3 s.
Preferably, the method for monitoring the substation worker contacting the power frequency electromagnetic field further comprises the following steps: and obtaining the long-term electric field value after the detection power worker contacts the power frequency electromagnetic field for 15min during working.
Preferably, the method for monitoring the substation worker contacting the power frequency electromagnetic field further comprises the following steps: the power frequency electromagnetic field detection device with the electromagnetic field induction probe is used for detecting electric field data, magnetic field data and working position information of power frequency electromagnetic fields contacted by power frequency workers during working.
Preferably, the method for monitoring the substation worker contacting the power frequency electromagnetic field further comprises the following steps: regional operating time limit expression:
in the formula, E0The limit value of the power frequency electric field is 5kV/m when a person contacts the power frequency electric field for 8 hours; eiContacting the electric field intensity of the power frequency electromagnetic field in the region i for the power worker; t is0For an operating time of 8h, TiIs the zone operating time limit in zone i.
The invention also provides a monitoring device for the contact of the substation staff with the power frequency electromagnetic field, which comprises a power frequency electromagnetic field detection device, a receiver and a control system;
the power frequency electromagnetic field detection device is worn on the body of an electric power worker, and is used for acquiring electric field data, magnetic field data and working position information of the electric power worker contacting a power frequency electromagnetic field during working and the working time of the electric power worker in a certain region contacting the power frequency electromagnetic field;
the receiver is used for receiving electric field data, magnetic field data, working position information and regional working time detected by the power frequency electromagnetic field detection device and transmitting the electric field data, the magnetic field data, the working position information and the regional working time to the central control system;
and the central control system is used for displaying the information data transmitted by the receiver, processing the electric field data, the magnetic field data and the region working time according to the monitoring method for the substation worker to contact the power frequency electromagnetic field, obtaining the result of the contact of the monitored power frequency electromagnetic field during manual work, and reminding the power worker or giving an alarm according to the processing result.
The invention also provides a computer-readable storage medium for storing computer instructions, which when run on a computer, cause the computer to execute the above-mentioned monitoring method for the substation worker contacting the power frequency electromagnetic field.
The invention also provides a computer program which is characterized by comprising program codes and is used for executing the monitoring method for the substation worker to contact the power frequency electromagnetic field when the computer program runs on a computer.
The invention also provides terminal equipment, which comprises a processor and a memory;
the memory is used for storing program codes and transmitting the program codes to the processor;
and the processor is used for executing the monitoring method for the substation worker to contact the power frequency electromagnetic field according to the instruction in the program code.
According to the technical scheme, the embodiment of the invention has the following advantages:
1. the monitoring method for the substation worker to contact the power frequency electromagnetic field comprises the steps that a power frequency electromagnetic field detection device is worn on a power worker through a data acquisition unit, electric field data, magnetic field data and regional working time of the power frequency electromagnetic field contacted by the power worker during working can be directly detected, so that the accuracy of the detected electric field data and magnetic field data is high, the short-time electric field value, the short-time magnetic field value and the long-time electric field value are respectively compared with a short-time electric field contact limit value, a short-time magnetic field contact limit value and 5kV/m one by one, whether the short-time electric field contact limit value, the short-time magnetic field contact limit value and 5kV/m are exceeded or not is judged, if the short-time electric field contact limit value, the short-time magnetic field contact limit value and 5kV/m are exceeded, an alarm is sent to inform the power worker, the time, reminding the power workers to safely operate; the technical problem of current measurement personnel contact power frequency electromagnetic field size numerical value inaccurate, can't accurately differentiate personnel's operation health, gradually influences personnel's personal safety is solved.
2. The monitoring device for the substation workers to contact the power frequency electromagnetic field is characterized in that the power frequency electromagnetic field detection device is worn on the body of the power workers through the data acquisition unit, so that the electric field data, the magnetic field data and the regional working time of the power workers to be in contact with the power frequency electromagnetic field during working can be directly detected, the accuracy of the detected electric field data and magnetic field data is high, the short-time electric field value, the short-time magnetic field value and the long-time electric field value are respectively compared with the short-time electric field contact limit value, the short-time magnetic field contact limit value and 5kV/m one by one, whether the short-time electric field value, the short-time magnetic field contact limit value and the 5kV/m are exceeded or not is judged, if the short-time electric field value, the short-time magnetic field contact limit value and the 5kV/m are exceeded, an alarm is sent, reminding the power workers to safely operate; the technical problem of current measurement personnel contact power frequency electromagnetic field size numerical value inaccurate, can't accurately differentiate personnel's operation health, gradually influences personnel's personal safety is solved.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flowchart illustrating steps of a method for monitoring a substation worker contacting a power frequency electromagnetic field according to an embodiment of the present invention.
Fig. 2 is a frame diagram of a monitoring device for monitoring the contact of substation workers with a power frequency electromagnetic field according to an embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The main influences of the power frequency electromagnetic field on the human body include thermal effect, non-thermal effect, cumulative effect and the like, the power frequency electromagnetic field belongs to a range of extremely low frequency, and the energy level of the power frequency electromagnetic field is very low. According to the occupational health standard established by the biological effect of the power frequency electric field, the occupational health standard of the power frequency electromagnetic field for protecting the health of occupational people is established by considering the possibility of the acute effect and the long-term health effect of the power frequency electromagnetic field. And dividing the corresponding score of the power frequency electromagnetic field in the corresponding limit values according to the hazard factor contact limit value and the national standard, wherein the part 2 of the workplace harmful factor occupational contact limit value is as follows: physical factors (GBZ 2.2.2-2007) stipulate that the industrial frequency electric field occupational contact limit of the 8h workplace is 5 kV/m. Technical specification for monitoring labor environment in power industry: the power frequency electromagnetic field monitoring (DLT 799.7-2010) stipulates that the power frequency secondary product just contacts the limit value of 500 mu T, and stipulates that the power frequency electric field is kept below the limit value when an electric worker in the working environment of the power system contacts the power frequency electric field, so that the health of the worker is ensured.
The embodiment of the application provides a monitoring method and a monitoring device for a substation worker contacting a power frequency electromagnetic field, and the monitoring method and the monitoring device are used for solving the technical problems that the numerical value of the size of the existing detection personnel contacting the power frequency electromagnetic field is inaccurate, the operation health of the personnel cannot be accurately distinguished, and the personal safety of the personnel is gradually influenced.
The first embodiment is as follows:
fig. 1 is a flowchart illustrating steps of a method for monitoring a substation worker contacting a power frequency electromagnetic field according to an embodiment of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a method for monitoring a substation worker contacting a power frequency electromagnetic field, including the following steps:
s1, wearing a power frequency electromagnetic field detection device on an electric power worker to obtain electric field data, magnetic field data and position information of the electric power worker contacting a power frequency electromagnetic field during working and the working time of the electric power worker in a certain area contacting the power frequency electromagnetic field;
s2, processing the electric field data and the magnetic field data to obtain a short-time electric field numerical value, a short-time magnetic field numerical value and a long-time electric field numerical value; processing the electric field data of a certain area according to the position information to obtain an area working time limit value;
s3, if the short-time electric field value is larger than the short-time electric field contact limit value, or the short-time magnetic field data is larger than the short-time magnetic field contact limit value, or the long-time electric field value is larger than 5kV/m, giving an alarm; if the regional working time is not less than 50% of the regional working time limit value, an early warning is sent out to inform electric power workers; if the area working time is greater than the area working time limit value, an alarm is given;
and the long-term electric field value is a time weighted average value of electric field data of the power frequency electromagnetic field contacted by the power worker in the working time.
In the embodiment of the invention, the power frequency electromagnetic field detection device is worn on the body of the power worker, so that the numerical values of the electric field strength and the magnetic field strength contacting the power frequency electromagnetic field when the power worker works can be directly detected, and the accuracy of the detected numerical values of the electric field strength and the magnetic field strength is high.
In the present embodiment, the electric field data is represented by electric field intensity data, and the magnetic field data is represented by magnetic field intensity data.
In the embodiment of the invention, the short-time electric field value and the short-time magnetic field value are electric field strength values and magnetic field strength values obtained by the power frequency electromagnetic field detection device at one time on the body of a worker, the long-time electric field value is the accumulated power frequency electric field value of all electric field strength values obtained by the power frequency electromagnetic field detection device on the body of the worker within a period of time, and whether the short-time electric field contact limit value, the short-time magnetic field contact limit value and the 5kV/m are exceeded or not is judged according to the comparison of the short-time electric field value, the short-time magnetic field value and the long-time electric field value with the short-time electric field contact limit value, the short-time magnetic field contact limit value and the 5kV/m, if the short-time.
It should be noted that the alarm can be sent in any form of sound, light, short message and the like, so that the monitoring result that the power worker contacts the power frequency electromagnetic field in the working process is informed.
In the embodiment of the invention, the time of the power frequency electromagnetic field contacted by the power workers in each area during working is also judged, different warning information is sent according to the judgment result, the power workers are reminded, and the warning information can ensure that the power workers can keep safe operation.
In the embodiment of the invention, the early warning is sent to inform the electric power staff that the work time is long in the area at present, and the danger of self health exists when the electric power staff continue to work in the area. The alarm is sent to inform the power staff that the power staff is in dangerous work at present, and the health of the power staff is invaded by the power frequency electromagnetic field at present.
The invention provides a monitoring method for a substation worker to contact a power frequency electromagnetic field, which is characterized in that a power frequency electromagnetic field detection device is worn on a power worker, the power frequency electromagnetic field detection device is worn on the power worker through a data acquisition unit, electric field data, magnetic field data and regional working time of the power worker contacting the power frequency electromagnetic field during working can be directly detected, so that the accuracy of the detected electric field data and magnetic field data is high, whether the electric field data and the magnetic field data exceed a short-time electric field contact limit value, a short-time magnetic field contact limit value and 5kV/m is judged according to the short-time electric field value, the short-time magnetic field value and the long-time electric field value which are respectively compared with the short-time electric field contact limit value, the short-time magnetic field contact limit value and 5kV/m, if the electric field value, an alarm is sent to inform the power worker, and the time of the power frequency electromagnetic field, sending different warning information according to the judgment result to remind the electric power workers to ensure that the electric power workers work safely; the technical problem of current measurement personnel contact power frequency electromagnetic field size numerical value inaccurate, can't accurately differentiate personnel's operation health, gradually influences personnel's personal safety is solved.
It should be noted that, in the method for monitoring the contact of the substation worker with the power frequency electromagnetic field in the embodiment of the present invention, the electromagnetic strength and the electric field strength of the power frequency electromagnetic field when the power worker is in operation are determined by multiple criteria through determining the short-time contact, the long-time contact, the power frequency electromagnetic strength and the electric field strength of the power frequency electromagnetic field when the power worker is in operation, and the regional operating time, so as to ensure the safe operation of the power worker, and gradually ensure the physical safety of the power worker.
In an embodiment of the present invention, the method for monitoring the substation worker contacting the power frequency electromagnetic field further includes: expression for time weighted average:
in the formula, E is the time weighted average value of the power frequency electromagnetic field contacted by the power worker in the activity time, T is the standard working time of the power worker in one day, TiFor the time of contact of the power frequency electromagnetic field by the power operator in region i, EiThe electric field intensity of the power frequency electromagnetic field is contacted by the electric power worker in the region i, n is the number n of regions where the electric power worker works, and i is 1-n.
It should be noted that the expression of the time-weighted average value is mainly used for calculating a long-term electric field value, the long-term electric field value is also referred to as a power frequency electric field long-term accumulated value, the power frequency electric field long-term accumulated value refers to accumulated energy of a power frequency electric field which is contacted by a power worker for a long time in a working time, and the time-weighted average value of the power frequency electric field in the contact time is used for calculation. And the electric power working personnel activity routes are sectionally distinguished according to the areas i according to different power frequency electric field grades. Wherein the standard working time is 8 hours.
In an embodiment of the present invention, the method for monitoring the substation worker contacting the power frequency electromagnetic field further includes: acquiring electric field data of a power frequency electromagnetic field contacted by a power frequency worker during working from a power frequency electromagnetic field detection device at intervals t; the time t is less than or equal to 3 s.
In an embodiment of the present invention, the method for monitoring the substation worker contacting the power frequency electromagnetic field further includes: and obtaining a long-time electric field value which is calculated after 15min of contact of a detection power worker with a power frequency electromagnetic field during work.
It should be noted that, the electric field data and the magnetic field data are respectively processed and analyzed, a test value of the electric field data is obtained from the power frequency electromagnetic field detection device at regular intervals t (the interval time t is not more than 3s), and after the power frequency electromagnetic field detection device starts the test for 15min, a long-term accumulation value of the power frequency electric field is calculated, that is, a long-term electric field value is calculated.
In an embodiment of the present invention, the method for monitoring the substation worker contacting the power frequency electromagnetic field further includes: the power frequency electromagnetic field detection device with the electromagnetic field induction probe is used for detecting electric field data, magnetic field data and working position information of power frequency electromagnetic fields contacted by power frequency workers during working.
In an embodiment of the present invention, the method for monitoring the substation worker contacting the power frequency electromagnetic field further includes: regional operating time limit expression:
in the formula, E0The limit value of the power frequency electric field is 5kV/m when a person contacts the power frequency electric field for 8 hours; eiContacting the electric field intensity of the power frequency electromagnetic field in the region i for the power worker; t is0For an operating time of 8h, TiIs the zone operating time limit in zone i.
It should be noted that the regional operating time limit in a region (e.g., in the region of the power frequency electromagnetic field radiation range in the substation) refers to the maximum time limit of the power frequency electric field contact at the patrol and overhaul site when the substation worker is in patrol and overhaul of the substation, the limit value is directly related to the power frequency electric field at the work site, the regional operating time limit and the regional operating time of the worker are displayed in real time in the substation power frequency electromagnetic field distribution diagram, and the actual operating time in the region is the regional operating time. When the regional working time reaches 50% of the regional working time limit value, a yellow early warning is sent out; and when the regional working time exceeds the regional working time limit value, a red early warning is sent out.
Example two:
fig. 2 is a frame diagram of a monitoring device for monitoring the contact of substation workers with a power frequency electromagnetic field according to an embodiment of the present invention.
As shown in fig. 2, an embodiment of the present invention further provides a monitoring device for monitoring the contact of a substation worker with a power frequency electromagnetic field, including a power frequency electromagnetic field detection device 10, a receiver 20, and a central control system 30;
the power frequency electromagnetic field detection device 10 is worn on the body of an electric power worker and is used for acquiring electric field data, magnetic field data and working position information of the electric power worker contacting a power frequency electromagnetic field during working and working time of the electric power worker in a certain region contacting the power frequency electromagnetic field;
the receiver 20 is used for receiving electric field data, magnetic field data, working position information and regional working time detected by the power frequency electromagnetic field detection device 10 and transmitting the electric field data, the magnetic field data, the working position information and the regional working time to the central control system 30;
and the central control system 30 is used for displaying the information data transmitted by the receiver 10, processing the electric field data, the magnetic field data and the region working time according to the monitoring method for the substation worker to contact the power frequency electromagnetic field, obtaining the result of the contact of the monitored power frequency electromagnetic field during manual work, and reminding the power worker or giving an alarm according to the processing result.
In the embodiment of the present invention, the power frequency electromagnetic field detection device 10 is described by taking a power frequency electromagnetic field test probe as a case, the small power frequency electromagnetic field test probe can effectively measure a power frequency electromagnetic field and is connected with the receiver 20 in a wireless or bluetooth manner, the receiver 20 can be a mobile phone or pad carried by an electric power worker, and the receiver 20 transmits data information, position information and time information of the tested power frequency electromagnetic field to the central control system 30. The receiver 20 further collects a power frequency electromagnetic field intensity signal of the power frequency electromagnetic field test probe in a short distance, transmits the position information and the time information of the power worker to the central control system 30 through the mobile network, and simultaneously receives the early warning information sent by the central control system 30 to send out early warnings, such as sound and vibration early warnings.
In the embodiment of the present invention, the central control system 30 receives the information of the power frequency electric field strength, the position, the time, etc., which is sent by the receiver 20 and is touched by the power operator, analyzes the power frequency electric field and the power frequency magnetic field respectively, and displays the information sent by the receiver 20 and the analysis result data. Specifically, according to the position information and the field intensity information of the power frequency electromagnetic field sent by the receiver 20, the intensity of the power frequency electromagnetic field is displayed in real time in a regional map of the transformer substation displayed in the central control system, and the regional working time limit and the regional working time of the power worker are also displayed in real time in the regional map of the transformer substation.
It should be noted that, the contents of how the central control system processes the electric field data, the magnetic field data, and the area operating time in the second embodiment are already described in detail in the steps of the first embodiment, and therefore, how the central control system processes and analyzes the electric field data, the magnetic field data, and the area operating time is not described in detail.
In the embodiment of the invention, the monitoring device for the substation worker to contact the power frequency electromagnetic field can real-timely monitor the power frequency electromagnetic field actually contacted by the power worker, can reflect the size of the power frequency electromagnetic field actually contacted by the power worker, can also reflect the size of the power frequency electric field contacted by the power worker accumulated for a long time, can alarm the exceeding of the contact standard of the power worker for a long time and a short time, and can display the position of the power worker and the size of the power frequency electromagnetic field contacted by the power worker in real time through a central control system, thereby being convenient for mastering the information of the power worker during operation in real time; and the working time limit value of the working area of the power worker at the position can be displayed in real time through the central control system, so that the work arrangement of the power worker is facilitated.
The monitoring device for the substation worker to contact the power frequency electromagnetic field is characterized in that a power frequency electromagnetic field detection device is worn on a power worker through a data acquisition unit, so that electric field data, magnetic field data and regional working time of the power frequency electromagnetic field contacted by the power worker during working can be directly detected, the accuracy of the detected electric field data and magnetic field data is high, whether the short-time electric field data, the short-time magnetic field data and the long-time electric field data exceed a short-time electric field contact limit value, a short-time magnetic field contact limit value and 5kV/m is judged according to the comparison of the short-time electric field data, the short-time magnetic field data and the long-time electric field data with a short-time electric field contact limit value, a short-time magnetic field contact limit value and 5kV/m, if the short-time electric field data, an alarm is sent to inform the power, sending different warning information according to the judgment result to remind the electric power workers to ensure that the electric power workers work safely; the technical problem of current measurement personnel contact power frequency electromagnetic field size numerical value inaccurate, can't accurately differentiate personnel's operation health, gradually influences personnel's personal safety is solved.
Example three:
the embodiment of the invention provides a computer-readable storage medium, which is used for storing computer instructions and enabling a computer to execute the monitoring method for the substation worker to contact with the power frequency electromagnetic field when the computer instructions run on the computer.
Example four:
the embodiment of the invention provides a computer program, which comprises a program code, wherein when the computer program runs on a computer, the program code is used for executing the monitoring method for the substation worker to contact the power frequency electromagnetic field.
Example five:
the embodiment of the invention provides terminal equipment, which comprises a processor and a memory;
a memory for storing the program code and transmitting the program code to the processor;
and the processor is used for executing the monitoring method for the substation worker to contact the power frequency electromagnetic field according to the instructions in the program codes.
It should be noted that the processor is configured to execute the steps of the above-mentioned embodiment of the monitoring method for substation workers contacting the power frequency electromagnetic field according to the instructions in the program code. Alternatively, the processor, when executing the computer program, implements the functions of each module/unit in each system/apparatus embodiment described above.
Illustratively, a computer program may be partitioned into one or more modules/units, which are stored in a memory and executed by a processor to accomplish the present application. One or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of a computer program in a terminal device.
The terminal device may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal device may include, but is not limited to, a processor, a memory. Those skilled in the art will appreciate that the terminal device is not limited and may include more or fewer components than those shown, or some components may be combined, or different components, e.g., the terminal device may also include input output devices, network access devices, buses, etc.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage may be an internal storage unit of the terminal device, such as a hard disk or a memory of the terminal device. The memory may also be an external storage device of the terminal device, such as a plug-in hard disk, a Smart Memory Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like provided on the terminal device. Further, the memory may also include both an internal storage unit of the terminal device and an external storage device. The memory is used for storing computer programs and other programs and data required by the terminal device. The memory may also be used to temporarily store data that has been output or is to be output.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A monitoring method for a substation worker to contact a power frequency electromagnetic field is characterized by comprising the following steps:
the power frequency electromagnetic field detection device is worn on an electric power worker, and electric field data, magnetic field data and position information of the electric power worker contacting a power frequency electromagnetic field during working and the working time of the electric power worker in a certain region contacting the power frequency electromagnetic field are obtained;
processing the electric field data and the magnetic field data to obtain a short-time electric field value, a short-time magnetic field value and a long-time electric field value; processing the electric field data of a certain area according to the position information to obtain an area working time limit value;
if the short-time electric field value is larger than the short-time electric field contact limit value, or the short-time magnetic field data is larger than the short-time magnetic field contact limit value, or the long-time electric field value is larger than 5kV/m, an alarm is given;
if the area working time is not less than 50% of the limit value of the area working time, an early warning is sent out to inform electric power workers; if the area working time is greater than the area working time limit value, an alarm is given;
and the long-term electric field value is a time weighted average value of electric field data of the power frequency electromagnetic field contacted by the power worker in the working time.
2. The method for monitoring the exposure of a substation worker to a power frequency electromagnetic field of claim 1, further comprising: expression for time weighted average:
in the formula, E is the time weighted average value of the power frequency electromagnetic field contacted by the power worker in the activity time, T is the standard working time of the power worker in one day, TiFor the time of contact of the power frequency electromagnetic field by the power operator in region i, EiThe electric field intensity of the power frequency electromagnetic field is contacted by the electric power worker in the region i, n is the number n of regions where the electric power worker works, and i is 1-n.
3. The method for monitoring the exposure of a substation worker to a power frequency electromagnetic field of claim 1, further comprising: acquiring electric field data of a power frequency electromagnetic field contacted by a power frequency worker during working from the power frequency electromagnetic field detection device at intervals t; the time t is less than or equal to 3 s.
4. The method for monitoring the exposure of a substation worker to a power frequency electromagnetic field of claim 1, further comprising: and obtaining the long-term electric field value after the detection power worker contacts the power frequency electromagnetic field for 15min during working.
5. The method for monitoring the exposure of a substation worker to a power frequency electromagnetic field of claim 1, further comprising: the power frequency electromagnetic field detection device with the electromagnetic field induction probe is used for detecting electric field data, magnetic field data and working position information of power frequency electromagnetic fields contacted by power frequency workers during working.
6. The method for monitoring the exposure of a substation worker to a power frequency electromagnetic field of claim 1, further comprising: regional operating time limit expression:
in the formula, E0The limit value of the power frequency electric field is 5kV/m when a person contacts the power frequency electric field for 8 hours; eiContacting the electric field intensity of the power frequency electromagnetic field in the region i for the power worker; t is0For an operating time of 8h, TiIs the zone operating time limit in zone i.
7. A monitoring device for a substation worker to contact a power frequency electromagnetic field is characterized by comprising a power frequency electromagnetic field detection device, a receiver and a control system;
the power frequency electromagnetic field detection device is worn on the body of an electric power worker, and is used for acquiring electric field data, magnetic field data and working position information of the electric power worker contacting a power frequency electromagnetic field during working and the working time of the electric power worker in a certain region contacting the power frequency electromagnetic field;
the receiver is used for receiving electric field data, magnetic field data, working position information and regional working time detected by the power frequency electromagnetic field detection device and transmitting the electric field data, the magnetic field data, the working position information and the regional working time to the central control system;
the central control system is used for displaying the information data transmitted by the receiver, processing the electric field data, the magnetic field data and the regional work time according to the monitoring method for the substation worker to contact the power frequency electromagnetic field as claimed in any one of claims 1 to 6, obtaining the result of the monitoring of the power frequency electromagnetic field when the power work is manually operated, and reminding the power worker or giving an alarm according to the processing result.
8. A computer-readable storage medium for storing computer instructions which, when executed on a computer, cause the computer to perform the method of monitoring exposure of a substation worker to a power frequency electromagnetic field of any one of claims 1 to 6.
9. Computer program, characterized in that it comprises program code for carrying out a method for monitoring the exposure of a substation operator to a power frequency electromagnetic field according to any one of claims 1 to 6, when said computer program is run on a computer.
10. A terminal device comprising a processor and a memory;
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is used for executing the monitoring method for the substation worker to contact the power frequency electromagnetic field according to any one of claims 1 to 6 according to the instructions in the program codes.
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