阅读说明：本技术 一种基于场强变化的高压输电线路电压检测预警装置及其检测方法 (High-voltage transmission line voltage detection early warning device based on field intensity change and detection method thereof ) 是由 霍福广 杭帅 于 2019-07-09 设计创作，主要内容包括：本发明提供了一种基于场强变化的高压输电线路电压检测预警装置,所述电压检测预警装置包括信号采集单元、信号调理单元、A/D转换单元、控制处理单元、按键输入单元、存储单元、显示单元和报警单元；所述电压检测预警装置根据所述信号采集单元采集的信号综合计算分析,确定所述高压输电线路电压值,并判断检测人员是否在安全距离内,若出现异常,及时发出报警,实现电压检测的同时保证所述检测人员的安全。本发明提供一种基于场强变化的高压输电线路电压检测预警装置和方法,能够测量现场电场强度、进而判断输电线路的电压等级,同时保护现场工作人员的人身安全。(The invention provides a voltage detection early warning device of a high-voltage transmission line based on field intensity change, which comprises a signal acquisition unit, a signal conditioning unit, an A/D conversion unit, a control processing unit, a key input unit, a storage unit, a display unit and an alarm unit, wherein the signal acquisition unit is used for acquiring a signal; the voltage detection early warning device determines the voltage value of the high-voltage transmission line according to the comprehensive calculation and analysis of the signals collected by the signal collecting unit, judges whether detection personnel are within a safe distance, and timely sends out an alarm if the detection personnel are abnormal, so that the safety of the detection personnel is guaranteed while the voltage detection is realized. The invention provides a high-voltage transmission line voltage detection early warning device and method based on field intensity change, which can measure field electric field intensity, further judge the voltage grade of a transmission line and protect the personal safety of field workers.)

1. A high-voltage transmission line voltage detection early warning device based on field intensity change is characterized by comprising a signal acquisition unit, a signal conditioning unit, an A/D conversion unit, a control processing unit, a key input unit, a storage unit, a display unit and an alarm unit, wherein the signal acquisition unit is sequentially connected with the signal conditioning unit, the A/D conversion unit and the control processing unit, and the control processing unit is also respectively connected with the key input unit, the storage unit, the display unit and the alarm unit; the voltage detection early warning device determines the voltage value of the high-voltage transmission line according to the comprehensive calculation and analysis of the signals collected by the signal collecting unit, judges whether detection personnel are within a safe distance, and timely sends out an alarm if the detection personnel are abnormal, so that the safety of the detection personnel is guaranteed while the voltage detection is realized.

2. The high-voltage transmission line voltage detection early warning device based on field intensity change of claim 1, characterized in that the signal acquisition unit adopts an adjustable rod-shaped electrically small antenna to acquire electric field signals, the electrically small antenna adjusts the measurement range by changing the length of the antenna, the antenna is spiral, the radius is 1mm, the length is 25mm, and the measurement range is 800V/m-50 KV/m; acquiring the real-time moving distance of the detection personnel by adopting an MPU6050 integrated six-axis motion processing assembly, wherein the MPU6050 integrated six-axis motion processing assembly comprises a three-axis gyroscope and a three-axis acceleration sensor, and the three-axis gyroscope can measure the angular velocity of the movement of the detection personnel so as to determine the motion state of the detection personnel; the three-axis acceleration sensor detects the acceleration of the movement of the detection personnel.

3. The high-voltage transmission line voltage detection early warning device based on field intensity change of claim 2, characterized in that the signal conditioning unit comprises an amplifying module and a filtering module, wherein the amplifying module amplifies the electric field signal and outputs a signal meeting the input requirement of the A/D conversion unit; the filtering module filters interference signals by adopting a low-pass filter.

4. The high-voltage transmission line voltage detection early-warning device based on field intensity change of claim 3, wherein the key input unit is combined with the storage unit and the display unit to perform parameter setting and information query on the voltage detection early-warning device, and the parameters comprise an electric field signal alarm value, electric field intensity and separation distance delta S integral maximum values corresponding to different voltage classes and safety distances corresponding to different voltage classes.

5. The voltage detection and early warning device for the high-voltage transmission line based on the field intensity change of claim 4, wherein the warning unit adopts an audible and visual alarm, and when the voltage detection and early warning device detects an abnormality, an audible and visual warning prompt is timely sent out.

6. The high-voltage transmission line voltage detection early warning device based on field intensity change of claim 5, characterized in that the control processing unit adopts a microprocessor to process information, controls the storage unit and the display unit to store and display, calculates the voltage value of the high-voltage transmission line according to the parameters, judges whether the detection personnel are safe, and sends out an alarm prompt in time.

7. The high-voltage transmission line voltage detection early-warning device based on field intensity change of claim 6, characterized in that the voltage detection early-warning device adopts dry batteries to provide power.

8. The detection method of the high-voltage transmission line voltage detection early warning device based on field intensity change according to any one of claims 1 to 7, characterized in that the detection method comprises the following steps:

step (1): the electric small antenna collects electric field signals, and the MPU6050 integrated six-axis motion processing component collects the real-time moving distance of the detection personnel;

step (2): the electric field signal is amplified by the amplifying module;

and (3): filtering interference signals by the filtering module;

and (4): performing A/D conversion by the A/D conversion unit;

and (5): the control processing unit compares the electric field signal with the electric field signal alarm value, if the electric field signal alarm value is larger than the electric field signal alarm value, the alarm unit sends out an alarm, and the display unit displays that the electric field signal alarm value is in a dangerous range; if the electric field signal alarm value is not greater than the electric field signal alarm value, displaying that the electric field signal alarm value is in a safety range through the display unit;

and (6): determining the motion state of the detection personnel according to the angular speed of the motion of the detection personnel;

and (7): calculating the moving distance s of the detection personnel according to the acceleration of the movement of the detection personnel;

and (8): the signal control processing unit integrates the electric field intensity sampling value to obtain an integral maximum value;

and (9): judging the voltage grade of the high-voltage transmission line by combining the reference value;

step (10): and storing and displaying the measurement and analysis result of the voltage detection early warning device through the storage unit and the display unit.

Technical Field

The invention belongs to the technical field of electric power detection, and particularly relates to a high-voltage transmission line voltage detection early warning device based on field intensity change and a detection method thereof.

Background

The high-voltage transmission line is used as an important carrier of power transmission, and the safe and stable operation of the high-voltage transmission line is also an important guarantee for ensuring the power quality. The safe operation of high tension transmission line can not leave electric power workman's construction and maintenance work, and some maintenance work need electric power staff to carry out live working, in order to guarantee electric power staff's personal safety, except formulating effective operation regulation, also need to utilize some technological means to take necessary safety measure.

After the high-voltage transmission line is electrified, a strong electromagnetic field is generated around the high-voltage transmission line, the human body is easy to generate electrostatic shock injury in a strong electric field environment, and even stable current passes through the human body due to capacitive coupling, so that personal injury is caused. The electric field strength value is an important index for judging whether the current environment is safe or not. The invention provides a high-voltage transmission line voltage detection early warning device based on field intensity change, which can judge the voltage grade of a transmission line on site so as to determine the safety distance of site operation. The device can also measure the field electric field intensity, further judge the voltage grade of the power transmission line, and protect the personal safety of field workers.

Disclosure of Invention

The invention provides a high-voltage transmission line voltage detection early warning device and method based on field intensity change, which can measure field electric field intensity, further judge the voltage grade of a transmission line and protect the personal safety of field workers.

The invention particularly relates to a voltage detection early warning device of a high-voltage transmission line based on field intensity change, which comprises a signal acquisition unit, a signal conditioning unit, an A/D conversion unit, a control processing unit, a key input unit, a storage unit, a display unit and an alarm unit, wherein the signal acquisition unit is sequentially connected with the signal conditioning unit, the A/D conversion unit and the control processing unit, and the control processing unit is also respectively connected with the key input unit, the storage unit, the display unit and the alarm unit; the voltage detection early warning device determines the voltage value of the high-voltage transmission line according to the comprehensive calculation and analysis of the signals collected by the signal collecting unit, judges whether detection personnel are within a safe distance, and timely sends out an alarm if the detection personnel are abnormal, so that the safety of the detection personnel is guaranteed while the voltage detection is realized.

The signal acquisition unit adopts an adjustable rod-shaped small antenna to acquire electric field signals, the small antenna adjusts the measurement range by changing the length of the antenna, the antenna is in a spiral shape, the radius is 1mm, the length is 25mm, and the measurement range is 800V/m-50 KV/m; acquiring the real-time moving distance of the detection personnel by adopting an MPU6050 integrated six-axis motion processing assembly, wherein the MPU6050 integrated six-axis motion processing assembly comprises a three-axis gyroscope and a three-axis acceleration sensor, and the three-axis gyroscope can measure the angular velocity of the movement of the detection personnel so as to determine the motion state of the detection personnel; the three-axis acceleration sensor detects the acceleration of the movement of the detection personnel.

The signal conditioning unit comprises an amplifying module and a filtering module, wherein the amplifying module is used for amplifying the electric field signal and outputting a signal meeting the input requirement of the A/D conversion unit; the filtering module filters interference signals by adopting a low-pass filter.

The key input unit is combined with the storage unit and the display unit to carry out parameter setting and information inquiry on the voltage detection early warning device, and the parameters comprise an electric field signal alarm value, electric field intensity and interval distance delta S integral maximum values corresponding to different voltage levels and safety distances corresponding to different voltage levels.

The alarm unit adopts an audible and visual alarm, and when the voltage detection early warning device detects abnormality, audible and visual alarm prompt is sent out in time.

The control processing unit adopts a microprocessor to process information, controls the storage unit and the display unit to store and display, calculates the voltage value of the high-voltage transmission line according to the parameters, judges whether the detection personnel are safe or not, and sends out an alarm prompt in time.

The voltage detection early warning device adopts a dry battery to provide power.

The invention also provides a detection method of the high-voltage transmission line voltage detection early warning device based on field intensity change, and the detection method comprises the following steps:

step (1): the electric small antenna collects electric field signals, and the MPU6050 integrated six-axis motion processing component collects the real-time moving distance of the detection personnel;

step (2): the electric field signal is amplified by the amplifying module;

and (3): filtering interference signals by the filtering module;

and (4): performing A/D conversion by the A/D conversion unit;

and (5): the control processing unit compares the electric field signal with the electric field signal alarm value, if the electric field signal alarm value is larger than the electric field signal alarm value, the alarm unit sends out an alarm, and the display unit displays that the electric field signal alarm value is in a dangerous range; if the electric field signal alarm value is not greater than the electric field signal alarm value, displaying that the electric field signal alarm value is in a safety range through the display unit;

and (6): determining the motion state of the detection personnel according to the angular speed of the motion of the detection personnel;

and (7): calculating the moving distance s of the detection personnel according to the acceleration of the movement of the detection personnel;

and (8): the signal control processing unit integrates the electric field intensity sampling value to obtain an integral maximum value;

and (9): judging the voltage grade of the high-voltage transmission line by combining the reference value;

step (10): and storing and displaying the measurement and analysis result of the voltage detection early warning device through the storage unit and the display unit.

Drawings

Fig. 1 is a schematic structural diagram of a high-voltage transmission line voltage detection early warning device based on field intensity change.

Fig. 2 is a working flow chart of a detection method of the high-voltage transmission line voltage detection early warning device based on field intensity change.

Detailed Description

The following describes in detail a specific embodiment of the high-voltage transmission line voltage detection early warning device based on field intensity change with reference to the accompanying drawings.

As shown in fig. 1, the voltage detection early warning device of the present invention includes a signal acquisition unit, a signal conditioning unit, an a/D conversion unit, a control processing unit, a key input unit, a storage unit, a display unit, and an alarm unit, wherein the signal acquisition unit is sequentially connected to the signal conditioning unit, the a/D conversion unit, and the control processing unit is further connected to the key input unit, the storage unit, the display unit, and the alarm unit, respectively; the voltage detection early warning device determines the voltage value of the high-voltage transmission line according to the comprehensive calculation and analysis of the signals collected by the signal collecting unit, judges whether detection personnel are within a safe distance, and timely sends out an alarm if the detection personnel are abnormal, so that the safety of the detection personnel is guaranteed while the voltage detection is realized.

The signal acquisition unit adopts an adjustable rod-shaped small antenna to acquire electric field signals, the small antenna adjusts the measurement range by changing the length of the antenna, the antenna is in a spiral shape, the radius is 1mm, the length is 25mm, and the measurement range is 800V/m-50 KV/m; acquiring the real-time moving distance of the detection personnel by adopting an MPU6050 integrated six-axis motion processing assembly, wherein the MPU6050 integrated six-axis motion processing assembly comprises a three-axis gyroscope and a three-axis acceleration sensor, and the three-axis gyroscope can measure the angular velocity of the movement of the detection personnel so as to determine the motion state of the detection personnel; the three-axis acceleration sensor detects the acceleration of the movement of the detection personnel.

The signal conditioning unit comprises an amplifying module and a filtering module, wherein the amplifying module is used for amplifying the electric field signal and outputting a signal meeting the input requirement of the A/D conversion unit; the filtering module filters interference signals by adopting a low-pass filter.

The key input unit is combined with the storage unit and the display unit to carry out parameter setting and information inquiry on the voltage detection early warning device, and the parameters comprise an electric field signal alarm value, electric field intensity and interval distance delta S integral maximum values corresponding to different voltage levels and safety distances corresponding to different voltage levels.

The alarm unit adopts an audible and visual alarm, and when the voltage detection early warning device detects abnormality, audible and visual alarm prompt is sent out in time.

The control processing unit adopts a microprocessor to process information, controls the storage unit and the display unit to store and display, calculates the voltage value of the high-voltage transmission line according to the parameters, judges whether the detection personnel are safe or not, and sends out an alarm prompt in time.

The voltage detection early warning device adopts a dry battery to provide power.

As shown in fig. 2, the present invention further provides a detection method of a high voltage transmission line voltage detection early warning device based on field intensity change, wherein the detection method comprises the following steps:

step (1): the electric small antenna collects electric field signals, and the MPU6050 integrated six-axis motion processing component collects the real-time moving distance of the detection personnel;

step (2): the electric field signal is amplified by the amplifying module;

and (3): filtering interference signals by the filtering module;

and (4): performing A/D conversion by the A/D conversion unit;

and (5): the control processing unit compares the electric field signal with the electric field signal alarm value, if the electric field signal alarm value is larger than the electric field signal alarm value, the alarm unit sends out an alarm, and the display unit displays that the electric field signal alarm value is in a dangerous range; if the electric field signal alarm value is not greater than the electric field signal alarm value, displaying that the electric field signal alarm value is in a safety range through the display unit;

and (6): determining the motion state of the detection personnel according to the angular speed of the motion of the detection personnel;

and (7): calculating the moving distance s of the detection personnel according to the acceleration of the movement of the detection personnel;

and (8): the signal control processing unit integrates the electric field intensity sampling value to obtain an integral maximum value;

and (9): judging the voltage grade of the high-voltage transmission line by combining the reference value;

step (10): and storing and displaying the measurement and analysis result of the voltage detection early warning device through the storage unit and the display unit.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.