CN211085483U - Infrared array wire temperature measuring device for power transmission line - Google Patents
Infrared array wire temperature measuring device for power transmission line Download PDFInfo
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- CN211085483U CN211085483U CN201922381694.9U CN201922381694U CN211085483U CN 211085483 U CN211085483 U CN 211085483U CN 201922381694 U CN201922381694 U CN 201922381694U CN 211085483 U CN211085483 U CN 211085483U
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- transmission line
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Abstract
The utility model relates to a transmission line control technical field, concretely relates to transmission line infrared array wire temperature measuring device, including the module of charging, the module of charging passes through power management module and connects control module, communication module and infrared array sensor respectively, and control module connects infrared array sensor, and control module passes through communication module and connects monitoring platform. The utility model provides a need not to install contact temperature measurement module, avoid measuring the infrared array wire temperature measuring device of transmission line of single temperature measurement point.
Description
Technical Field
The utility model relates to a transmission line control technical field, concretely relates to transmission line infrared array wire temperature measuring device.
Background
With the continuous increase of national economy, the electricity consumption of cities and countryside increases dramatically, and the phenomenon that the line power supply load is near the limit or exceeds the limit to operate occurs at the peak period of electricity consumption. With the increasing popularity of high-load operation of the line, the overhigh temperature of the connecting joint of the conducting wire of the power transmission line becomes a 'dead hole' for the safe operation of the line. The joints are annealed and aged slowly when operating at high temperature, so that the strength loss of the joints is reduced, the strength loss is increased along with the increase of the temperature and time of the wire clamp, and the discontinuous heating has an accumulative effect on the strength loss. Due to poor connection of the lead, disconnection accidents caused by overhigh temperature of the connection point occur. The line breaking accident is the most harmful accident in various accidents of the power grid due to the large damage range. The temperature monitoring of the wire clamp of the transmission line can effectively reduce the wire breakage accident of the transmission line and improve the running stability of the transmission line.
The wireless temperature measuring sensors are additionally arranged at the positions of a wire, a strain clamp, a splicing sleeve, a drainage plate and the like of the power transmission line, the temperature of the wire and the temperature of a connecting hardware fitting are sensed all weather, relevant monitoring information is comprehensively collected through the self-organizing network, edge calculation and intelligent analysis are carried out, and operation and maintenance personnel are helped and guided to master the operation state of the line in real time and carry out accurate operation and maintenance. And integrating line crossing information on an application layer, calculating the maximum load condition of the wire, predicting the temperature change of the wire of the line, guiding a dispatching department to reasonably allocate the transmission capacity of the line, and orderly developing dynamic capacity increase.
In order to realize the temperature monitoring of the wire clamp of the power transmission line, the temperature measuring module is widely applied at the wire clamp at present, the temperature measuring module can acquire the temperature at the wire clamp in real time and transmit the temperature value to the host computer in a wireless communication mode, and the host computer transmits the temperature values of all the temperature measuring modules to the monitoring background through the 4G communication module. However, because the voltage level of the power transmission line is high, the safety distance is far away, the wire is high, the difficulty in installing the temperature measurement modules in an electrified manner is high, some temperature measurement modules do not have the condition of being installed in an electrified manner, the power transmission line is required to be powered off for installation, the temperatures of the wire, the strain clamp, the splicing sleeve and the drainage plate need to be measured, and if the comprehensive monitoring of wire temperature measurement is realized, a plurality of temperature measurement modules are required.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, and the power transmission line infrared array wire temperature measuring device which is not required to be provided with a contact type temperature measuring module and avoids measuring a single temperature measuring point is provided.
The utility model discloses a solve the technical scheme that its technical problem adopted and do: the infrared array wire temperature measuring device for the power transmission line comprises a charging module, wherein the charging module is respectively connected with a control module, a communication module and an infrared array sensor through a power management module, the control module is connected with the infrared array sensor, and the control module is connected with a monitoring platform through the communication module.
The utility model discloses a power management module control module that charges is control module, communication module and infrared array sensor power supply, is carried out the temperature measurement to transmission line by infrared array sensor to convey temperature measurement information to control module, control module passes through communication module and conveys temperature information to monitor platform.
The power output end of the charging module is connected with the input end of the power management module, and the input end of the power management module is respectively connected with the power input ends of the control module, the communication module and the infrared array sensor.
The field angle of the infrared array sensor is 55 degrees by 35 degrees.
The measuring distance of the infrared array sensor is 7 m.
The charging module adopts a power supply technology of solar maximum power point tracking.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a transmission line infrared array wire temperature measuring device adopts infrared array sensor to creep and installs contact temperature measurement module, has solved the difficult problem that contact temperature measurement influences electrical isolation performance and installation inconvenience, has solved that general temperature measurement product can only measure single temperature measurement point, can not carry out certain limit in temperature measurement's drawback.
Drawings
Fig. 1 is a schematic diagram of the structural connection of the present invention.
Fig. 2 is the temperature measurement schematic diagram of the infrared array sensor of the present invention.
Fig. 3 is a schematic view of the charging process of the present invention.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings:
examples
As shown in fig. 1 to 3, the intelligent charging device comprises a charging module, the charging module is respectively connected with a control module, a communication module and an infrared array sensor through a power management module, the control module is connected with the infrared array sensor, and the control module is connected with a monitoring platform through the communication module.
The power output end of the charging module is connected with the input end of the power management module, and the input end of the power management module is respectively connected with the power input ends of the control module, the communication module and the infrared array sensor.
As shown in fig. 3, the charging module adopts a power supply technology of Maximum Power Point Tracking (MPPT) of solar energy, and can be charged with maximum power, so that the charging power of the device is significantly increased, and the cost is reduced. The charging module tracks the maximum power point of the solar cell by adopting a constant voltage method. In the volt-ampere characteristic curve of the solar cell, when the ambient temperature is fixed, the output voltage corresponding to the point outputting the maximum power is basically the same under different sunshine intensities, that is, as long as the output terminal voltage of the solar cell is kept to be a constant voltage, the solar cell can be ensured to output the maximum power when the sunshine intensities are different under the temperature. However, when the ambient temperature changes, the voltage corresponding to the maximum power point of the solar cell changes with the temperature approximately according to a temperature coefficient of-0.4%/DEG C. When the ambient temperature is 25 ℃, the voltage of the maximum power point tracking end of the solar cell is modulated to be 1.04V, the temperature coefficient is-0.4%/DEG C, and the tracking of the maximum power point of the solar cell can be realized by matching with a voltage division network formed by two resistors outside the solar cell. The maximum power point tracking method is very suitable for the situation that the temperature difference of four seasons is large or the temperature difference of the day is large.
The charging module provides power for each module power supply through the power management module, and the power management module monitors each module in real time, so that the effect of effectively reducing the power consumption of the equipment is achieved.
When the battery voltage is lower than 66.7% of the set constant voltage charging voltage, the charging module automatically enters the trickle charge mode, where the charging current is 15% of the set constant current charging current. When the battery voltage is greater than 66.7% of the set constant voltage charging voltage, the charging module enters a constant current charging mode. When the voltage of the battery continues to rise and approaches to the constant-voltage charging voltage, the charging module enters a constant-voltage charging mode, the charging current is gradually reduced at the moment, when the charging current is reduced to 9.5% of the set constant-current charging current, the charging module enters a charging ending state, and the charging current is zero at the moment. In the charging ending state, if the input power supply is disconnected and then connected again, a new charging period is started; if the battery voltage drops to the recharge threshold (which is set to 95.8% of the constant voltage charging voltage in this embodiment), a new charging cycle is automatically started. When the input voltage is powered down, the charging module automatically enters a sleep mode, and the internal circuit is turned off, so that the current consumption of the battery can be reduced, and the standby time can be prolonged.
As shown in fig. 2, the infrared array sensor has 32 × 24 pixels, including 768 thermal infrared pixels. Can emit infrared light, realize temperature measurement by using blackbody radiation law, and pass temperature value through I2The interface C is transmitted to the control module, the infrared sensor can work in the temperature range of-40 ℃ to 85 ℃, and the infrared sensor can measure the object with the temperature of-40 ℃ to 300 ℃. The whole measuring range keeps a high precision level, typical target object temperature precision of +/-1 ℃ is provided, and the Noise Equivalent Temperature Difference (NETD) of the infrared array sensor under the refresh rate of 1Hz is only 0.1K RMS, so that the infrared array sensor has better noise performance. Compared with a microbolometer, the infrared array sensor does not need to be frequently recalibrated, and therefore continuous monitoring is guaranteed, and cost is reduced. The field angle of the infrared array sensor adopted in the embodiment is (FoV)55 degrees by 35 degrees, the measuring distance is 7m, and the large-area monitoring on the power transmission line can be realized.
In this embodiment, the communication module establishes a wireless network connection with the monitoring platform through a 4G network, so as to send information detected by the infrared array sensor received by the control module to the monitoring platform.
Claims (5)
1. The utility model provides a transmission line infrared array wire temperature measuring device, its characterized in that includes the module of charging, the module of charging passes through power management module and connects control module, communication module and infrared array sensor respectively, control module connects infrared array sensor, and control module passes through communication module and connects monitoring platform.
2. The infrared array wire temperature measuring device of the electric transmission line according to claim 1, wherein a power output end of the charging module is connected with an input end of the power management module, and an input end of the power management module is respectively connected with power input ends of the control module, the communication module and the infrared array sensor.
3. The device of claim 1, wherein the field angle of the infrared array sensor is 55 ° by 35 °.
4. The infrared array wire temperature measuring device of the electric transmission line according to claim 1 or 3, wherein the measuring distance of the infrared array sensor is 7 m.
5. The infrared array wire temperature measuring device of the power transmission line according to claim 1, wherein the charging module adopts a power supply technology of solar maximum power point tracking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922381694.9U CN211085483U (en) | 2019-12-26 | 2019-12-26 | Infrared array wire temperature measuring device for power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922381694.9U CN211085483U (en) | 2019-12-26 | 2019-12-26 | Infrared array wire temperature measuring device for power transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211085483U true CN211085483U (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922381694.9U Active CN211085483U (en) | 2019-12-26 | 2019-12-26 | Infrared array wire temperature measuring device for power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211085483U (en) |
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2019
- 2019-12-26 CN CN201922381694.9U patent/CN211085483U/en active Active
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