CN213276362U

CN213276362U - Main transformer temperature controller automatic detection device with image recognition function

Info

Publication number: CN213276362U
Application number: CN202021875610.3U
Authority: CN
Inventors: 李贵良; 罗新元; 陈德帛; 郭祥; 罗永盛
Original assignee: Yunnan Power Grid Co ltd Dehong Power Supply Bureau
Current assignee: Yunnan Power Grid Co ltd Dehong Power Supply Bureau
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-05-25
Anticipated expiration: 2030-09-01

Abstract

The utility model relates to a main temperature controller automatic checkout device that becomes with image recognition function, including fin, heat-conducting plate, main control unit, oil groove, magnetic oil float subassembly, radiator fan, semiconductor heating refrigeration piece, this main temperature controller automatic checkout device that becomes is connected with the temperature controller through the signal mouth, the temperature package of temperature controller is located in main temperature controller automatic checkout device's the constant temperature oil groove that becomes, and main temperature controller automatic checkout device that becomes still connects image processing apparatus through the USB interface, and image processing apparatus is connected with the subassembly of making a video recording that can shoot the thermometer of temperature controller. The utility model discloses collect constant temperature oil groove and main temperature controller intellectual detection system that becomes, can utilize picture and text conversion technique to read the indicating value reading, realize automatic temperature control and automatic acquisition data and handle the judgement, and install the communication protocol port additional, realize the strange land of report and upload cloud platform function.

Description

Main transformer temperature controller automatic detection device with image recognition function

Technical Field

The utility model relates to a main temperature controller automatic checkout device with image recognition function specifically is used for the detection of main transformer oil level temperature controller.

Background

Among various devices of a power system, a power transformer is one of main devices, wherein whether the oil temperature and the oil level of an oil-immersed transformer are normal is one of key parameters related to the normal operation of the transformer, an oil level temperature controller for the transformer is a key device for ensuring the parameters, and the necessity of quickly calibrating the oil level temperature controller for the transformer is particularly prominent.

In the aspect of automatic test technology of test equipment, the test equipment of some temperature controller protection specialties, automation specialties and metering specialties at home and abroad realize full-automatic detection technology. However, as for the detection of the temperature pointer type oil level temperature controller, the full automatic detection function has not been realized in the industry. At present, the verification work of a temperature pointer type instrument belongs to semi-automatic manual detection, a manufacturer does not develop an automatic detection device of a main transformer temperature controller for replacing human eye reading, and an experimental report needs to be manually filled. In addition, the detection process cannot be fully automated, and data cannot be automatically uploaded. The reading operation is completed through human eye reading, and the reading error is easily caused by the existing defect.

However, as the development of the automatic information technology is increasing day by day, in the face of the increasing high-standard operation and working quality requirements of the power industry, the research of the full-automatic detection technology of the test equipment is already a development trend.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a main temperature controller automatic checkout device that becomes with image recognition function.

The utility model adopts the technical proposal that:

the utility model provides a main temperature controller automatic checkout device that becomes with image recognition function, including the fin, the heat-conducting plate, main control unit, the oil groove, the magnetic oil floats the subassembly, radiator fan, the refrigeration piece is heated to the semiconductor, this main temperature controller automatic checkout device that becomes is connected with the temperature controller through the signal mouth, the temperature package of temperature controller is arranged in main temperature controller automatic checkout device's constant temperature oil groove that becomes, main temperature controller automatic checkout device that becomes still connects image processing apparatus through the USB interface, image processing apparatus is connected with the subassembly of making a video recording that can shoot the thermometer of temperature controller.

Preferably, the image processing device can be integrated in the automatic detection device of the main temperature controller.

Preferably, the main controller of the automatic detection device of the main transformer temperature controller adopts an ARM controller to carry out intelligent PID control.

Preferably, the main controller of the automatic detection device of the main transformer temperature controller adopts a thyristor to perform PWM driving output to perform power control.

Preferably, the automatic detection device of the main transformer temperature controller is also provided with an external temperature sensor.

Preferably, the constant temperature oil groove of the main transformer temperature controller automatic detection device can be integrated in the main transformer temperature controller automatic detection device, and can also be used independently.

Preferably, the main transformer temperature controller automatic detection device is internally provided with an eight-loop current flow on-off indicator

Preferably, the automatic detection device of the main transformer temperature controller is also provided with a tablet personal computer and a 4G antenna, so that wireless transmission and data transmission can be realized.

Preferably, the main temperature controller automatic detection device is further equipped with a GPS module for providing location information.

The utility model has the advantages that:

the utility model discloses collect constant temperature oil groove and main temperature controller intellectual detection system that becomes, add the subassembly of making a video recording, development image conversion software, the subassembly of making a video recording acquires pointer instrument's image automatically, handles shape data through image processing device and transmits for main temperature controller automatic checkout device that becomes after, realizes automatic temperature control and automatic acquisition data and handles the judgement.

2. The utility model discloses a heating port adopts semiconductor refrigeration heating technology, and application ARM controller carries out intelligent PID control, and intelligent PID has control accuracy nature, and PWM drive output's silicon controlled rectifier carries out power control, and accurate control temperature field temperature can set up the speed of heating and cooling, has adapted to different examination demands.

3. The utility model discloses a constant temperature oil groove both can the exclusive use, also can integrate and jointly use in main temperature controller automatic checkout device that becomes, set for the target temperature value when jointly using, and main temperature controller automatic checkout device's automatic verification system accomplishes whole examination flows automatically.

5. The utility model discloses still be equipped with the GPS module that is used for providing positional information, can carry out intelligent management to equipment.

Drawings

Fig. 1 is a schematic view of the installation of the present invention;

fig. 2 is the schematic diagram of the operation judgment wiring of the present invention.

In fig. 1-2, 1-main temperature controller automatic checkout device that becomes, 2-signal port, 3-temperature controller, 4-temperature controller's temperature package, 5-constant temperature oil groove, 6-USB interface, 7-image processing device, 8-subassembly of making a video recording, 9-4G antenna.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

As shown in fig. 1, the utility model relates to a main temperature controller automatic checkout device that becomes with image recognition function, including the fin, the heat-conducting plate, main control unit, the oil groove, the subassembly is floated to the magnetic oil, radiator fan, the semiconductor heats the refrigeration piece, this main temperature controller automatic checkout device that becomes 1 is connected with temperature controller 3 through signal mouth 2, the thermometer bulb 4 of temperature controller is arranged in the constant temperature oil groove 5 that becomes main temperature controller automatic checkout device 1, main temperature controller automatic checkout device 1 that becomes 1 still connects image processing apparatus 7 through USB interface 6, image processing apparatus 7 is connected with the subassembly 8 of making a video recording that can shoot the thermometer of temperature controller 3.

This main controller that becomes temperature controller automatic checkout device 1 adopts the ARM controller to carry out intelligent PID control, adopt the silicon controlled rectifier to carry out PWM drive output simultaneously and carry out power control, the heating port, adopt semiconductor refrigeration heating technology, the application ARM controller carries out intelligent PID control, intelligent PID has control accuracy nature, the silicon controlled rectifier of PWM drive output carries out power control, the temperature field temperature of accurate control constant temperature oil groove 5 can set up the speed of heating and cooling, adapt to different examination demands. In addition, the constant temperature oil groove 5 of the main transformer temperature controller automatic detection device 1 can be integrated in the main transformer temperature controller automatic detection device 1, and can also be used independently; when the integrated calibration system is used, a target temperature value is set, and the automatic calibration system automatically completes all calibration processes. And the data transmitted by the standard thermometer and the data obtained by switching the contacts of the temperature controller 3 are recorded and compared, and whether the temperature controller 3 is qualified or not is judged. The temperature controller 3 detects the temperature value used for detecting the action of the contact, and simultaneously detects a temperature sensor (three wires Pt100) and a temperature transmitter (4-20 mA).

When the temperature control device is used, all devices are connected, the temperature bulb 4 of the temperature controller is placed in a constant temperature oil groove 5 of a main transformer temperature controller automatic detection device 1, an AC220V10A power supply is connected, the main transformer temperature controller automatic detection device 1 is started, a camera assembly 8 firstly carries out first instrument acquisition, the camera assembly 8 transmits an image shot by an instrument to an image processing device 7 after imaging, a built-in system of the image processing device 7 automatically processes the instrument image into a gray scale image, a user can set an instrument scale range, a template is set and stored, a dial area is set and stored, and then a detection instruction is sent; when a user sets the template and the dial scale area, the newly set and stored template can be automatically loaded as soon as the program is started, and the user can directly send a detection instruction to perform instrument detection; of course, the user may also select to load the existing template first and then send the detection instruction. The shooting component shoots and reserves files according to the collected temperature pointer information, and the file reserving software mainly comprises an information collecting area, a setting area, a selection template area and a parameter information display area. It should be noted that the image processing device 7 may be integrated in the main transformer temperature controller automatic detection device 1, or may be connected to the main transformer temperature controller automatic detection device 1 as a separate device. And finally, the automatic detection device 1 of the main transformer temperature controller automatically generates a detection result, and stores, records and processes the detection result to automatically generate a report. Because this owner becomes temperature controller automatic checkout device 1 and still is equipped with panel computer and 4G antenna 9, therefore the user can select whether wireless transmission verification data uploads to the cloud platform.

The detection principle of the automatic detection device 1 for the main transformer temperature controller is as follows: as the Pt100 and the temperature transmitter in the temperature controller 3 are mainly used for transmitting temperature, when the two components are detected, as shown in figure 2, two high-precision digital variable modules are adopted to respectively convert a resistance signal output by the Pt100 and a 0-5V direct current voltage signal output by the temperature transmitter into corresponding 4-20mA direct current signals. And then the 4-20mA direct current signal is transmitted to the singlechip module. The single chip microcomputer module carries out operation processing on the received real-time 4-20mA current signal: on the one hand, converting the temperature value into a corresponding temperature value; on the other hand, the error is calculated by comparing with the standard current, and whether the error is out of tolerance or qualified is judged according to the accuracy grade of the temperature controller 3. And the operation processing result of the singlechip is dynamically displayed in real time through the equipped tablet personal computer. The automatic detection device 1 of the main transformer temperature controller is provided with a K1-K4 node switch for controlling the starting and stopping of a cooling fan and high-temperature alarming and tripping signals. The non-electric quantity protection constant value of the temperature can be arranged through the node switch. The correctness of the constant value setting is reflected by the switching difference and the on-off state of the setting node switch. The utility model discloses an eight electric current volume break-make indicators in return circuit are used for setting K1-K4 node switch. When the node switch is switched on, the LED indicating lamp corresponding to the indicator is on, otherwise, the LED indicating lamp is dark. Taking the detection of the 30 ℃ point as an example, the pt100 output signal is connected to the digital variable module 1, and the digital variable module 1 converts the resistance signal into a current signal I1 (such as 7 mA) in the range of 4-20 mA. Then the 7mA current signal is sent to a singlechip to be collected, and is subtracted from the standard current Ib (7.2 mA) corresponding to 30 ℃, and the difference value is Ic (-0.2 mA). Finally, algebraically calculating the-0.2 mA, and converting into a corresponding error temperature D1 (-1.875 ℃), recording the absolute value of the error temperature as D < 3 ℃, and judging the temperature to be qualified or normal, otherwise, judging the temperature to be unqualified or abnormal. The calculation formula is as follows: ic = I1-Ib.

It should be noted that the on-site pointer type meter and the background digital display in the temperature controller 3 are two independent components, and are mutually referred to. When the oil surface temperatures indicated by the two are not consistent, the judgment cannot be made. After the automatic detection device 1 of the main transformer temperature controller is introduced, a reference object is added to form 3 standards. One of the problematic components can be quickly found out according to the "2 + 1" pattern. That is, one of the 3 references is inconsistent with the other two, and a problem is considered to exist. For the 3 independent references, the probability that the temperature indicator and the digital display of the tablet computer all have problems at the same time is extremely low. The probability of problems occurring with 3 references at the same time is almost zero. In addition, in order to guarantee the accuracy of the detection result, the main temperature controller automatic detection device 1 is further provided with an external temperature sensor, and the external sensor can be placed at a measurement position which is closer to the detected object.

In order to further realize intelligent management, the main transformer temperature controller automatic detection device 1 is also provided with a GPS module for providing position information, the main transformer temperature controller automatic detection device 1 can be positioned by additionally arranging the GPS module, the authorized main transformer temperature controller automatic detection device 1 leaves a monitoring area, the detection equipment automatically identifies, the unauthorized main transformer temperature controller automatic detection device 1 leaves the monitoring area, and the detection equipment gives an alarm.

Claims

1. The utility model provides a main temperature controller automatic checkout device that becomes with image recognition function, includes fin, heat-conducting plate, main control unit, oil groove, magnetism oil float subassembly, radiator fan, semiconductor heating refrigeration piece, its characterized in that: this owner becomes temperature controller automatic checkout device and is connected with the temperature controller through the signal mouth, and the temperature package of temperature controller is arranged in owner becomes temperature controller automatic checkout device's constant temperature oil groove, and owner becomes temperature controller automatic checkout device and still connects image processing device through the USB interface, and image processing device is connected with the subassembly of making a video recording that can shoot the thermometer of temperature controller.

2. The automatic detection device of a main transformer temperature controller according to claim 1, characterized in that: the image processing device can be integrated in the automatic detection device of the main transformer temperature controller.

3. The automatic detection device of a main transformer temperature controller according to claim 1, characterized in that: the main controller of the automatic detection device of the main transformer temperature controller adopts an ARM controller to carry out intelligent PID control.

4. The automatic detection device of a main transformer temperature controller according to claim 1, characterized in that: the main controller of the automatic detection device of the main transformer temperature controller adopts the controllable silicon to carry out PWM driving output to carry out power control.

5. The automatic detection device of a main transformer temperature controller according to claim 1, characterized in that: the automatic detection device of the main transformer temperature controller is also provided with an external temperature sensor.

6. The automatic detection device of a main transformer temperature controller according to claim 1, characterized in that: the automatic detection device of the main transformer temperature controller is internally provided with an eight-loop current flow on-off indicator.

7. The automatic detection device of a main transformer temperature controller according to claim 1, characterized in that: the constant temperature oil groove of the main transformer temperature controller automatic detection device can be integrated in the main transformer temperature controller automatic detection device and can be used independently.

8. The automatic detection device of a main transformer temperature controller according to claim 1, characterized in that: the automatic detection device of the main transformer temperature controller is also provided with a tablet personal computer and a 4G antenna, and can realize wireless transmission and data transmission.

9. The automatic detection device of a main transformer temperature controller according to claim 1, characterized in that: the automatic detection device of the main transformer temperature controller is also provided with a GPS module used for providing position information.