Disclosure of Invention
The utility model aims at providing a high voltage distribution cabinet wiring node temperature detection device, through setting up in the infrared thermal imaging probe in the direct ahead of high voltage distribution cabinet wiring node, carry out real-time detection to wiring node temperature, realized carrying out quick, accurate detection to the temperature of wiring node in the high voltage distribution cabinet, and the mounted position is comparatively nimble, and detection sensitivity is high.
In order to solve the technical problem, the embodiment of the utility model provides a high voltage distribution cabinet wiring node temperature-detecting device, include: the infrared thermal imaging device comprises an infrared thermal imaging probe, an MCU module, a power supply module and a communication module;
the infrared thermal imaging probe is arranged right in front of a wiring node of the high-voltage power distribution cabinet;
the MCU module is electrically connected with the infrared thermal imaging probe, acquires thermal imaging data of the infrared thermal imaging probe and processes the thermal imaging data;
the MCU module is electrically connected with the communication module and used for sending alarm data of overhigh temperature of the wiring node through the communication module;
the power module is electrically connected with the infrared thermal imaging probe, the MCU module and the communication module respectively.
Further, high voltage distribution cabinet wiring junction temperature-detecting device still includes: an alarm module;
the alarm module is electrically connected with the MCU module and receives an alarm signal which is sent by the MCU module and indicates that the temperature of the wiring junction is overhigh.
Further, the alarm module includes: a light alarm unit and/or an audio alarm unit;
the light alarm unit is an LED lamp group;
the audio alarm unit is a loudspeaker.
Further, high voltage distribution cabinet wiring junction temperature-detecting device still includes: a storage module;
the storage module is electrically connected with the MCU module and used for receiving thermal imaging data sent by the MCU module.
Further, the MCU module can receive a control instruction transmitted by the communication module and acquire historical thermal imaging data stored in the storage module according to the control instruction.
Further, the communication module exchanges data with a control center of the high-voltage power distribution cabinet in a wired communication mode and/or a wireless communication mode.
Further, the communication module includes: a GPRS communication unit and/or a WIFI communication unit;
the wireless communication method comprises the following steps: and exchanging data with the control center through the GPRS communication unit or the WIFI communication unit.
Further, the step of transmitting data to the control center by the MCU module through the communication module includes: temperature value information and/or thermal imaging picture information of the connection node.
Further, high voltage distribution cabinet wiring junction temperature-detecting device still includes: a standby power supply module;
the standby power supply module is electrically connected with the power supply module and supplies power to the power supply module when an external power supply circuit is abnormal.
The embodiment of the utility model provides an above-mentioned technical scheme has following profitable technological effect:
through setting up in the infrared thermal imaging probe in high voltage distribution cabinet wiring node dead ahead, carry out real-time detection to wiring node temperature, realized carrying out quick, accurate detection to the temperature of wiring node in the high voltage distribution cabinet, and the mounted position is comparatively nimble, and detectivity is high.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Currently, in the industry, a single temperature sensor is generally adopted to collect temperature data or a worker holds a thermal imager to detect the temperature of each wiring node in a distribution box one by one. The method for acquiring temperature data by using a single temperature sensor can only detect the temperature data of one wiring node each time, and has the defects of complex detection process, inaccurate detection data, single detection information and the like for the power distribution cabinet with more wiring nodes; by adopting the method of collecting temperature data by the handheld thermal imager, the high-voltage cabinet needs to be opened before each detection, and workers need to manually calculate the highest value of the local temperature.
In high voltage distribution cabinet, the line node is the position that the high temperature appears most easily as the tie point of each electric wire in the switch board, and the high temperature condition can appear when using in node contact failure and oxidation, and the temperature can be more and more high along with the increase of live time, and it is very important to discover in time the high temperature node and take measures.
Fig. 1 is the embodiment of the utility model provides a high voltage distribution cabinet wiring node temperature-detecting device principle sketch map.
Referring to fig. 1, an embodiment of the present invention provides a high voltage distribution cabinet wiring node temperature detection apparatus, including: the infrared thermal imaging device comprises an infrared thermal imaging probe, an MCU module, a power supply module and a communication module; the infrared thermal imaging probe is arranged right in front of a wiring node of the high-voltage power distribution cabinet; the MCU module is electrically connected with the infrared thermal imaging probe, acquires thermal imaging data of the infrared thermal imaging probe and processes the thermal imaging data; the MCU module is electrically connected with the communication module and sends alarm data of overhigh temperature of the wiring node through the communication module; the power supply module is respectively and electrically connected with the infrared thermal imaging probe, the MCU module and the communication module.
According to the method for collecting temperature information by using the infrared thermal imaging probe in the technical scheme, the temperature data of a plurality of wiring nodes of the whole cabinet can be measured, the temperature image is basically processed by the MCU module, the communication module is used, the processed temperature data is transmitted to the upper computer of the control room, and the method is flexible in installation position, high in measurement accuracy, rich in detection information and convenient to use.
Further, the specific process of the MCU module for processing the thermal imaging data is as follows: firstly, preprocessing a thermal imaging image in thermal imaging data by an MCU module, and performing linear filtering on the thermal imaging image by a wave recorder to eliminate noise in an infrared image; secondly, segmenting the linearly filtered image by adopting a lightweight convolutional neural network MobileNetv2, wherein MobileNetv2 is a convolutional neural network applied to embedded equipment and introduced by Google, and training on a thermal infrared image semantic segmentation data set SODA; and finally, realizing the division of each region of the thermal imaging image, namely each heating device, each wiring node, the cabinet body and other regions, calculating the average temperature and the maximum temperature value of each region, and storing the temperature data and the thermal infrared image data.
According to the technical scheme, the temperature of the wiring node is detected in real time through the infrared thermal imaging probe arranged in front of the wiring node of the high-voltage power distribution cabinet, the temperature of the wiring node in the high-voltage power distribution cabinet is detected quickly and accurately, the installation position is flexible, and the detection sensitivity is high.
Optionally, the device for detecting the temperature of the connection node of the high voltage distribution cabinet further comprises: and an alarm module. The alarm module is electrically connected with the MCU module and receives an alarm signal which is sent by the MCU module and indicates that the temperature of the wiring node is too high.
Specifically, the alarm module includes: a light alarm unit and/or an audio alarm unit; the light alarm unit is an LED lamp group; the audio alarm unit is a loudspeaker.
In addition, high voltage distribution cabinet junction temperature-detecting device still includes: and a storage module. The storage module is electrically connected with the MCU module and used for receiving thermal imaging data sent by the MCU module.
Further, the MCU module can receive the control instruction transmitted by the communication module and acquire the historical thermal imaging data stored in the storage module according to the control instruction.
Optionally, the communication module exchanges data with a control center of the high voltage distribution cabinet in a wired communication manner and/or a wireless communication manner.
Specifically, the communication module includes: a GPRS communication unit and/or a WIFI communication unit; the wireless communication method includes: and data exchange is carried out with the control center through the GPRS communication unit or the WIFI communication unit.
Further, the MCU module transmits data to the control center through the communication module, and the data transmission comprises the following steps: temperature value information and/or thermographic picture information of the connection node.
Optionally, the high-voltage distribution cabinet connection node temperature detection device generally adopts a direct-current 5V voltage power supply mode. In addition, high voltage distribution cabinet junction temperature-detecting device still includes: and a standby power supply module. The standby power supply module is electrically connected with the power supply module and supplies power to the power supply module when the external power supply circuit is abnormal.
The high-voltage power distribution cabinet wiring node temperature detection device is small in module number, small in occupied size, flexible in position setting of the infrared thermal imaging probe, high in wiring node temperature detection precision of the high-voltage power distribution cabinet, diversified in temperature detection information reporting mode and high in reliability. The maintainer can be according to alarm module accurately fast to the high region of junction temperature of butt joint go on the location to quick processing.
The embodiment of the utility model provides a aim at protecting a high voltage distribution cabinet wiring node temperature-detecting device, include: the infrared thermal imaging device comprises an infrared thermal imaging probe, an MCU module, a power supply module and a communication module; the infrared thermal imaging probe is arranged right in front of a wiring node of the high-voltage power distribution cabinet; the MCU module is electrically connected with the infrared thermal imaging probe, acquires thermal imaging data of the infrared thermal imaging probe and processes the thermal imaging data; the MCU is electrically connected with the communication module and sends alarm data of overhigh temperature of the wiring node through the communication module; the power supply module is respectively and electrically connected with the infrared thermal imaging probe, the MCU module and the communication module. The technical scheme has the following effects:
through setting up in the infrared thermal imaging probe in high voltage distribution cabinet wiring node dead ahead, carry out real-time detection to wiring node temperature, realized carrying out quick, accurate detection to the temperature of wiring node in the high voltage distribution cabinet, and the mounted position is comparatively nimble, and detectivity is high.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.