Intelligent verification system of temperature controller for transformer

Abstract

The embodiment of the invention provides an intelligent verification system of a temperature controller for a transformer. The temperature controller comprises a constant-temperature oil tank containing constant-temperature oil and an instrument panel used for displaying the regulation and control temperature of the constant-temperature oil, and the intelligent verification system comprises image acquisition equipment, a plurality of temperature sensors, a setting module and a host. According to the intelligent verification system provided by the embodiment of the invention, the regulation and control temperature of the temperature controller is determined by using the image of the instrument panel acquired by the image acquisition equipment, and the actual temperature of the constant-temperature oil in the constant-temperature oil tank is measured by using the temperature sensor; the host judges whether abnormity exists or not based on the regulation and control temperature and the actual temperature and reminds that the temperature rises to the required temperature, the dependence of temperature controller verification on manpower is reduced, and the problems that manual temperature monitoring is low in efficiency and the detection opportunity is prone to being missed are solved; the setting module solves the problem that the model of the temperature controller is easy to make mistakes when the target temperature is manually set, and the convenience and accuracy of parameter setting are improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of transformer temperature controller calibration, in particular to an intelligent calibration system of a transformer temperature controller. BACKGROUND

[0002] In the calibration process of the transformer temperature controller, the temperature usually needs to be raised to a set value (such as 100 DEG C) before detection. The traditional calibration method relies on manual operation and observation of the thermometer or instrument, and there are many problems.

[0003] Specifically, in the process of raising the temperature of the constant temperature oil in the constant temperature oil tank to the target temperature, the operator needs to continuously pay attention to the temperature change, and cannot focus on other work, and the operator needs to prepare the wiring mode according to the model of the temperature controller, and input and output measuring instruments (such as 220v power supply, multimeter, FLUKE754 current output or PT100 resistance value, etc.). Therefore, manual observation is easy to miss the target temperature point due to negligence, the operator has the risk of accidentally touching the 220v temperature controller power supply, and the wrong connection of the temperature controller 220V power supply has the risk of burning the temperature controller.

[0004] Therefore, how to reduce the dependence of the calibration of the transformer temperature controller on manual operation is a technical problem to be solved in the field. SUMMARY

[0005] The intelligent calibration system of the transformer temperature controller provided by the embodiment of the present application, the temperature controller includes a constant temperature oil tank containing constant temperature oil and an instrument panel for displaying the regulated temperature of the constant temperature oil, and the intelligent calibration system includes: An image acquisition device configured to acquire images of the instrument panel in real time; A plurality of temperature sensors arranged at different positions in the constant temperature oil tank and configured to detect real-time temperatures at different positions in the constant temperature oil tank in real time to generate a plurality of temperature detection signals; A setting module configured to determine the model and the first target temperature of the temperature controller based on a setting instruction input by an operator; A host electrically connected with the image acquisition device, the temperature sensor and the setting module, and configured to determine the regulated temperature of the temperature controller based on the images of the instrument panel, determine the actual temperature of the constant temperature oil at different positions in the constant temperature oil tank based on a plurality of temperature detection signals, and judge whether the difference between the regulated temperature and the actual temperature meets a first preset difference value, if yes, normal work is performed, otherwise a first abnormal early warning signal is generated, determine the detection items of the temperature controller based on the model of the temperature controller and the target temperature, and generate a first prompt signal when the actual temperature of the constant temperature oil reaches the first target temperature.

[0006] Optionally, the host is further configured to generate a second abnormal signal when the actual temperature of the constant temperature oil in the constant temperature oil tank exceeds the difference of the first target temperature by a second preset difference value; The host is further configured to generate a third abnormal signal when the constant temperature oil in the constant temperature oil tank does not reach an estimated temperature within a set time, the estimated temperature being 80% of the difference between the first target temperature and the initial temperature of the constant temperature oil in the constant temperature oil tank; The host is further configured to generate a second prompt signal when the actual temperature of the constant temperature oil in the constant temperature oil tank reaches a third target temperature, the third target temperature being lower than the first target temperature, and there is a risk of scalding the operator when the constant temperature oil in the constant temperature oil tank reaches the third target temperature.

[0007] Optionally, the temperature controller includes a power supply circuit, and a leakage protection device is arranged in the power supply circuit, and the host is further configured to generate a prevent electric shock signal when the temperature controller is connected to a 220V power supply, and generate a leakage reminder signal when electric shock occurs to cause the leakage protection device to cut off the power supply circuit.

[0008] Optionally, the intelligent detection system further comprises an alarm module electrically connected to the host, and the alarm module is configured to issue an alarm based on the first abnormal signal, the second abnormal signal, the third abnormal signal, the first prompt signal, the second prompt signal, the prevent electric shock signal and the leakage reminder signal.

[0009] Optionally, the alarm module includes a sound alarm and a light alarm, and the alarm module issues an alarm by sounding through the sound alarm and lighting through the light alarm.

[0010] Optionally, the intelligent detection system further comprises a voice reminder module electrically connected to the host and configured to display the first abnormal signal, the second abnormal signal, the third abnormal signal, the first prompt signal, the second prompt signal, the prevent electric shock signal and the leakage reminder signal to the operator in the form of voice broadcast.

[0011] Optionally, the intelligent detection system further comprises a display screen electrically connected to the host and configured to display the first abnormal signal, the second abnormal signal, the third abnormal signal, the first prompt signal, the second prompt signal, the prevent electric shock signal and the leakage reminder signal to the operator in the form of images; the display screen is further configured to display real-time data parameters during the detection of the temperature controller.

[0012] Optionally, the setting module comprises a touch screen and / or physical keys, the physical keys comprising a power key, a confirmation key, a cancel key and a numerical value adjustment key; based on the touch screen, the setting instruction is formed by the touch screen being pressed by an operator; based on the physical keys, the setting instruction is formed by the physical keys being pressed.

[0013] Optionally, the host built-in database, the database, the database comprising a plurality of temperature controller models.

[0014] Optionally, the intelligent verification system further comprises: a standby oil tank in communication with the constant-temperature oil tank through a two-way pipeline, and an electric shut-off valve, a flow control valve and an oil pump are arranged on the two-way pipeline; a cooling module is arranged in the standby oil tank, and the cooling module is used for cooling the constant-temperature oil in the standby oil tank. The host is configured to be connected with the electric shut-off valve, the flow control valve and the oil pump, and is configured to start a cooling program when receiving a cooling instruction, the cooling program being used for opening the electric shut-off valve, starting the oil pump and adjusting the flow of the flow control valve to exchange the constant-temperature oil in the constant-temperature oil tank with the constant-temperature oil in the standby oil tank until the temperature of the constant-temperature oil in the constant-temperature oil tank is reduced to a second target temperature, and then closing the oil pump and the electric shut-off valve, the second target temperature being lower than the first target temperature.

[0015] The technical scheme provided by the embodiments of the present application reduces the dependence of temperature controller verification on manual operation, solves the problems of low efficiency and easy to miss the detection opportunity of manual temperature monitoring, and improves the convenience and accuracy of parameter setting. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic diagram of a constant-temperature oil tank provided by the embodiments of the present application; Figure 2 is a frame schematic diagram of an intelligent verification system of a temperature controller for a transformer provided by the embodiments of the present application; Figure 3 is another frame schematic diagram of an intelligent verification system of a temperature controller for a transformer provided by the embodiments of the present application; Figure 4 is a connection schematic diagram of a constant-temperature oil tank and a standby oil tank provided by the embodiments of the present application.

[0017] Reference signs: 10 - host; 20 - image acquisition device; 30 - temperature sensor; 40 - setting module; 50 - alarm module; 60 - voice reminding module; 70 - display screen; 1 - constant temperature oil tank; 101 - power supply circuit; 102 - instrument panel; 2 - standby oil tank; 201 - cooling module; 3 - two-way pipeline; 301 - electric shut-off valve; 302 - flow control valve; 303 - oil pump. DETAILED DESCRIPTION

[0018] The present application will be further described in detail by the accompanying drawings and specific embodiments.

[0019] Figure 1 is a structural schematic diagram of a constant temperature oil tank provided by an embodiment of the present application. Figure 2 is a frame schematic diagram of an intelligent verification system of a temperature controller for a transformer provided by an embodiment of the present application. As shown in Figure 1 , the temperature controller comprises a constant temperature oil tank 1 containing constant temperature oil, and the constant temperature oil tank 1 is provided with an instrument panel 102 for displaying the control temperature of the constant temperature oil.

[0020] The present embodiment provides an intelligent verification system of a temperature controller for a transformer, as shown in Figure 1 and Figure 2 , the intelligent verification system provided by the present embodiment comprises an image acquisition device 20, a plurality of temperature sensors 30, a setting module 40 and a host 10.

[0021] The image acquisition device 20 is configured to acquire images of the instrument panel 102 in real time. Specifically, the image acquisition device 20 is a high-definition industrial camera, which is arranged at a preset position in front of the instrument panel 102 of the temperature controller, and the angle and focal length of the high-definition industrial camera are adjusted to ensure complete shooting of the scale and pointer images of the dial. The high-definition industrial camera is connected to an image acquisition card and transmits image data to the host 10 in real time.

[0022] The plurality of temperature sensors 30 are arranged at different positions in the constant temperature oil tank 1 and are configured to detect the real-time temperature at different positions in the constant temperature oil tank 1 to generate a plurality of temperature detection signals. Specifically, as shown in Figure 1 , temperature sensors 30 are arranged at different depths of the constant temperature oil tank 1 and at different distances from the side wall, so as to detect the temperature of the constant temperature oil at different positions in the constant temperature oil tank 1, thereby avoiding temperature errors caused by different positions in the constant temperature oil tank 1.

[0023] The setting module 40 is configured to determine the model of the thermostat and the first target temperature based on the setting instruction input by the operator. The host 10 is electrically connected with the image acquisition device 20, the temperature sensor 30 and the setting module 40, and is configured to determine the regulated temperature of the thermostat based on the image of the instrument panel 102, determine the actual temperature of the constant temperature oil at different positions in the constant temperature oil tank 1 based on the plurality of temperature detection signals, and judge whether the difference between the regulated temperature and the actual temperature meets the first preset difference value, if yes, perform normal work, otherwise generate a first abnormal signal, determine the detection item of the thermostat based on the model and the target temperature of the thermostat, and generate a first prompt signal when the actual temperature of the constant temperature oil reaches the first target temperature.

[0024] The intelligent testing system provided by the embodiment determines the regulated temperature of the thermostat by using the image of the instrument panel 102 acquired by the image acquisition device 20, measures the actual temperature of the constant temperature oil in the constant temperature oil tank 1 by using the temperature sensor 30, and judges whether there is an abnormality based on the regulated temperature and the actual temperature and prompts the temperature to rise to the required temperature by the host 10, thereby reducing the dependence of the thermostat testing on manual work, solving the problems of low efficiency and easy to miss the detection opportunity of manual temperature monitoring; the setting module 40 solves the problem of easy error in manual setting of the target temperature and the model of the thermostat, and improves the convenience and accuracy of parameter setting.

[0025] As shown in Figure 1 and Figure 2 , the setting module 40 includes a touch screen, the touch screen and / or physical keys, the physical keys including a power key, a confirmation key, a cancel key and a numerical adjustment key; based on the touch screen, the setting instruction is formed by the touch screen being pressed by the operator; based on the physical keys, the setting instruction is formed by the physical keys being pressed.

[0026] As shown in Figure 1 and Figure 2 , in the intelligent testing system provided by the embodiment, the host 10 is built-in with a database, the database includes the models of a plurality of thermostats. Specifically, the database contains the mainstream thermostat models on the market (such as BWY-803A, WTYK-01, etc.), the operator can select the target thermostat model by touch screen drop-down selection or physical key switching selection, and the interface automatically displays the appearance diagram, parameter specifications (such as power supply voltage, output signal type) of the model after the model is selected.

[0027] In one specific embodiment, the operator uses a touchscreen to operate the device. They input a first target temperature (e.g., 100℃) into the temperature setting interface on the touchscreen. The host unit 10 automatically determines whether the input temperature is within the temperature controller's range (e.g., 0℃-150℃). If it exceeds the range, a prompt box pops up on the interface (e.g., "The first target temperature exceeds the temperature controller's range, please re-enter"), and confirmation is disabled. After confirming the temperature controller model and the first target temperature, the controller automatically matches the corresponding detection items (e.g., 220V power supply detection, 4mA-20mA current output detection, PT100 resistance value detection, etc.) based on the model parameters. A list of detection items is displayed on the touchscreen interface, and the operator can select or add detection items according to actual needs.

[0028] Specifically, the host 10 automatically generates a wiring diagram that is dynamically displayed on the touch screen based on the selected model and testing items (such as different colored lines marking the connection terminals of power lines, signal lines, and measurement lines), and stores the setting parameters in the system memory to provide a basis for subsequent voice prompts and data recording.

[0029] like Figure 1 and Figure 2 As shown, in the intelligent verification system provided in this embodiment, the host 10 is further configured to generate a second abnormal signal when the difference between the actual temperature of the constant temperature oil in the constant temperature oil tank 1 and the first target temperature reaches a second preset difference; the host 10 is further configured to generate a third abnormal signal when the constant temperature oil in the constant temperature oil tank 1 fails to reach the estimated temperature within a set time, the estimated temperature being 80% of the difference between the first target temperature and the initial temperature of the constant temperature oil in the constant temperature oil tank 1; the host 10 is further configured to generate a second prompt signal when the actual temperature of the constant temperature oil in the constant temperature oil tank 1 reaches the third target temperature, the third target temperature being lower than the first target temperature, and there is a risk of scalding the operator when the constant temperature oil in the constant temperature oil tank 1 reaches the third target temperature.

[0030] Specifically, the second abnormal signal is an over-temperature abnormality. In one specific embodiment, the second preset difference is the over-temperature threshold (e.g., 5°C higher than the target temperature).

[0031] Specifically, the third abnormal signal is the slow heating abnormality. In one specific embodiment, slow heating means that the temperature does not reach the estimated temperature within 30 minutes of heating.

[0032] Specifically, the third target temperature is the preset high temperature judgment threshold of the constant temperature oil bath 1 (e.g., temperature ≥ 60℃). When the oil bath temperature reaches the threshold, there is a risk of burns to the operator. In response, the green LED light switches to yellow and remains on, and the status bar at the bottom of the screen displays the prompt "Oil bath high temperature, be careful to avoid burns". At the same time, the voice reminder module 60 broadcasts every 5 minutes "The current temperature of the oil bath is high. Please be careful to avoid burns during operation".

[0033] As shown in Figure 1 and Figure 2 , the intelligent verification system provided by the embodiment includes a power supply circuit 101, and the power supply circuit 101 is provided with a leakage protection device. The host 10 is further configured to generate a preventive electric shock signal when the temperature controller is connected to a 220V power supply, and generate a leakage reminder signal when the electric shock occurs to make the leakage protection device cut off the power supply circuit 101.

[0034] Figure 3 is another frame schematic diagram of the intelligent verification system of the temperature controller for the transformer provided by the embodiment. As shown in Figures 1 to 3 , the intelligent verification system provided by the embodiment further includes an alarm module 50, the alarm module 50 is electrically connected with the host 10, and the alarm module 50 is configured to issue an alarm based on the first abnormal signal, the second abnormal signal, the third abnormal signal, the first prompt signal, the second prompt signal, the preventive electric shock signal and the leakage reminder signal.

[0035] Specifically, the alarm module 50 includes a sound alarm and a light alarm, and the alarm module 50 issues an alarm in the form of sound issued by the sound alarm and lightening of the light alarm. The sound alarm is installed on the top of the host 10, supports multiple alarm sound effects (such as an urgent buzzer sound for an over-temperature abnormality and an intermittent buzzer sound for a slow temperature rise abnormality), and the volume is adjustable (such as 60dB-120dB). The light alarm adopts three-color LED lights, i.e. a red LED light, a yellow LED light and a green LED light. The light alarm is installed in a conspicuous position so that an operator can pay attention in time. In a specific embodiment, the light alarm is installed on the top of the touch screen. The following illustrates the alarm modes of several abnormalities.

[0036] When an over-temperature is detected, the sound alarm issues an urgent buzzer sound, the red LED light flashes at a frequency of 2Hz, and the touch screen pops up an over-temperature alarm pop-up window to display the current temperature, an over-temperature difference value and a recommended treatment measure (such as “over-temperature 5℃, please turn off the heating module and check the oil tank heat dissipation”). When a slow temperature rise is detected, the sound alarm issues an intermittent buzzer sound (1 second on and 1 second off), the yellow LED light is always on, and the pop-up window prompts “slow temperature rise, please check whether the heating module is normal”. After the alarm is triggered, the host 10 automatically records the alarm time, the alarm type and the current parameters (such as the temperature and the output signal) and stores them into an alarm log. The user can query the historical alarm record through the operation interface, which is convenient for subsequent analysis of abnormal reasons and optimization of the detection process.

[0037] For leakage abnormality, for example, the leakage protection device is a leakage circuit breaker, the rated leakage operating current is ≤30mA, and the operating time is ≤0.1s. When the temperature controller is connected to 220V power supply, the warning light flashes at a frequency of 1Hz; if the operator is electrically shocked, the leakage protection device instantly cuts off the power supply circuit 101, and the warning light becomes constant, ensuring the safety of the personnel.

[0038] If the alarm is not handled within a certain period of time (such as 5 minutes), the system automatically takes emergency measures (such as automatically shutting down the heating module when the temperature is too high, and automatically pausing the detection process when the heating module is confirmed to be faulty due to slow temperature rise), to prevent the accident from expanding.

[0039] As shown in Figures 1 to 3 The intelligent detection system provided by the embodiment further includes a voice reminding module 60, which is electrically connected with the host computer 10 and configured to display the first abnormal signal, the second abnormal signal, the third abnormal signal, the first prompt signal, the second prompt signal, the electric shock prevention signal, and the leakage reminding signal to the operator in the form of voice broadcast. The embodiment solves the problems of easy errors in manual data recording and easy confusion in terminal identification by designing the voice reminding module 60, and improves the operation safety and data recording accuracy.

[0040] Specifically, a high-performance voice chip is installed inside the host computer 10, which supports multiple languages such as Chinese and English, has a built-in TTS voice synthesis function, can generate clear and natural voice in real time according to the text content, and the voice output power is adjustable (such as 0dB-60dB).

[0041] The system has preset voice reminding rules. When the temperature monitoring module detects that the temperature controller pointer temperature reaches the first target temperature (for example, the first target temperature is 100℃), the host computer 10 sends a trigger signal to the voice chip, and the voice chip broadcasts the basic reminding content (such as “the temperature has reached 100℃, please carry out the current detection operation”).

[0042] The voice chip retrieves the corresponding terminal number information according to the temperature controller model and detection project stored in the setting module 40, and broadcasts detailed operation instructions (such as “the current detection project is 4mA-20mA current output measurement, and the terminal numbers to be measured are 1# and 2#, please confirm that the wiring is correct before collecting data”).

[0043] At the same time of voice reminding, the system automatically pops up a data recording interface, which displays the parameter items to be recorded (temperature controller pointer temperature, constant temperature oil tank 1 indicated value, output value). The user can enter the monitoring data by touching the screen or the system can automatically fill in the monitoring data. The data is automatically associated with the detection time and the temperature controller model to generate an unalterable record document (such as Excel format).

[0044] For the leakage abnormality, for example, the leakage protection device is a leakage circuit breaker, the rated leakage operating current is ≤30 mA, and the operating time is ≤0.1 s, when the temperature controller is connected to 220V power supply, the warning light flashes at a frequency of 1 Hz, and the voice chip synchronously broadcasts "220V power supply has been connected, please pay attention to electric shock prevention". If the operator is electric shock, the leakage protection device instantaneously cuts off the power supply circuit 101, at the same time, the warning light becomes constant, and the voice chip urgently broadcasts ("leakage occurs, power supply has been cut off, please check the equipment and personnel safety"), to ensure the safety of personnel.

[0045] As shown in Figures 1 to 3 The intelligent verification system provided by the embodiment further includes a display screen 70, which is electrically connected with the host computer 10 and configured to show the first abnormal signal, the second abnormal signal, the third abnormal signal, the first prompt signal, the second prompt signal, the electric shock prevention signal and the leakage reminder signal to the operator in the form of images; the display screen 70 is further configured to display real-time data parameters in the verification process of the temperature controller. The design of the display screen 70 solves the inconvenience of manual checking of multiple device parameters, and improves the intuitiveness and real-time performance of parameter checking.

[0046] It should be noted that the display screen 70 can be an independent display screen 70, or a touch screen in the setting module 40 can be reused as the display screen 70.

[0047] Specifically, the display screen 70 can be a 12-inch high-definition liquid crystal screen, and the screen resolution is set to 1920x1080, supporting brightness adjustment (such as 50-500 cd / m2), adapting to different light environments, and the liquid crystal screen is connected with the system processor through an HDMI interface to realize real-time data refreshing (refreshing frequency ≥10 Hz.

[0048] The display screen 70 adopts a sub-area display layout, and the left area (accounting for 40%) displays the temperature of the temperature controller pointer (including the real-time image of the instrument panel 102 shot by the image acquisition device 20 and the numerical value calculated by the algorithm, and the numerical value font is enlarged to 24), the temperature of the constant-temperature oil tank 1 (including multi-point temperature data and average temperature, and the average temperature is highlighted with bold font).

[0049] The middle area (accounting for 30%) of the display screen 70 displays the target temperature value (the font color is set to red, which is contrasted with the current temperature), the detection item progress (such as "current detection: 100℃ indication verification, progress: 60%"), and the remaining detection item list.

[0050] The right area (30%) of the display screen 70 displays the output signal data in real time, including the 4mA-20mA current signal (displaying the real-time current value and the corresponding percentage, such as "12mA (50%)") and the PT100 resistance value (displaying the real-time resistance value and the corresponding temperature, such as "138.5Ω (100℃)"), which is displayed in the form of dynamic digital jumping when the data changes, so as to facilitate the capture of real-time changes.

[0051] The bottom of the screen is provided with a status bar to display the system running state (such as "normal operation", "cooling", "abnormal alarm"), the connection state of the device (such as whether the image acquisition device 20, the temperature sensor 30 and the leakage protection device are normally connected), and the current time, so as to ensure that the user can fully master the system situation.

[0052] Figure 4 is a schematic diagram of the connection between the constant-temperature oil tank 1 and the standby oil tank 2 provided by the embodiment of the present application. As shown in Figure 4 The intelligent calibration system provided by the embodiment of the present application further includes a standby oil tank 2, the standby oil tank 2 is communicated with the constant-temperature oil tank 1 through a bidirectional pipeline 3, and the bidirectional pipeline 3 is provided with an electric shut-off valve 301, a flow control valve 302 and an oil pump 303, and the standby oil tank 2 is provided with a cooling module 201, which is used for cooling the constant-temperature oil in the standby oil tank 2.

[0053] The host computer 10 is configured to be connected with the electric shut-off valve 301, the flow control valve 302 and the oil pump 303, and is configured to start a cooling program when receiving a cooling instruction, the cooling program is used for opening the electric shut-off valve 301, starting the oil pump 303, and adjusting the flow of the flow control valve 302 to make the constant-temperature oil in the constant-temperature oil tank 1 exchange with the constant-temperature oil in the standby oil tank 2 until the temperature of the constant-temperature oil in the constant-temperature oil tank 1 is reduced to a second target temperature, then the oil pump 303 and the electric shut-off valve 301 are closed, and the second target temperature is lower than the first target temperature.

[0054] Specifically, the volumes of the constant-temperature oil tank 1 and the standby oil tank 2 are matched according to the detection requirements (for example, both are 50L), the materials of the constant-temperature oil tank 1 and the standby oil tank 2 are selected to be 304 stainless steel which is resistant to high temperature and corrosion, and the bottoms of the constant-temperature oil tank 1 and the standby oil tank 2 are installed with shock-absorbing feet to avoid the influence of vibration on the detection accuracy during operation.

[0055] The bidirectional pipeline 3 installed between the constant-temperature oil tank 1 and the standby oil tank 2 is a stainless steel oil pipeline, the electric shut-off valve 301, the flow control valve and the oil pump 303 are respectively installed on the bidirectional pipeline 3, the outer layer of the oil pipeline is wrapped with thermal insulation cotton to reduce the temperature loss in the oil conveying process.

[0056] The inside of the standby oil tank 2 is provided with a high-efficiency cooling module 201, including a spiral cooling coil, a refrigeration compressor, and a temperature controller. The cooling coil is uniformly distributed in the oil tank, and the power of the refrigeration compressor is set according to the cooling requirement (such as 500W), so as to ensure that the temperature of the standby oil tank 2 is stably maintained at 5-10℃ for a long time, so as to quickly cool the constant-temperature oil in the constant-temperature oil tank 1.

[0057] The system is provided with a preset cooling trigger condition. When the indication verification (such as a 127℃ verification point) is completed, the operator issues a cooling instruction through the setting module 40, or the system automatically identifies that the current verification point is completed, and triggers the cooling program. After the cooling program is started, the system first opens the electric shut-off valve 301 between the test oil tank and the standby oil tank 2, starts the oil pump 303, adjusts the flow control valve to the optimal oil delivery rate (such as 10L / min), and realizes the rapid exchange of high-temperature oil in the constant-temperature oil tank 1 and low-temperature oil in the standby oil tank 2.

[0058] The system monitors the temperature change of the test oil tank in real time. When the temperature drops to the target temperature required for the next detection (second target temperature, for example, 50℃), the oil pump 303 and the electric shut-off valve 301 are automatically closed to stop the oil exchange, and the test oil tank heating module is started to stabilize the temperature at the target value, without the need for manual waiting to start the next detection.

[0059] The intelligent verification system provided in the embodiment can solve the problem of slow cooling of the constant-temperature oil tank 1 after high-temperature verification, and improve the continuity of the detection process.

[0060] The device embodiments described above are only schematic, and the units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, i.e., they can be located in one place or distributed on multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment.

[0061] From the above description of the embodiments, those skilled in the art can clearly understand that the embodiments can be implemented by means of software plus a general hardware platform, and of course can also be implemented by hardware. Based on such understanding, the above technical solutions or the part that contributes to the related art can be embodied in the form of a software product, which can be stored in a computer readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods described in each embodiment or some parts of the embodiment.

[0062] The above embodiments are merely exemplary and are not intended to limit the embodiments. Based on the above description, one of ordinary skill in the art can further make modifications and variations to the embodiments. The modifications and variations do not depart from the scope of the embodiments.

Claims

1. An intelligent verification system for a temperature controller for a transformer, the temperature controller including a thermostat tank in which thermostat oil is stored and an instrument panel for displaying a regulated temperature of the thermostat oil, characterized by, The intelligent testing system comprises: an image acquisition device configured to acquire images of the instrument panel in real time; a plurality of temperature sensors arranged at different positions in the constant-temperature oil tank and configured to detect real-time temperatures at different positions in the constant-temperature oil tank to generate a plurality of temperature detection signals; a setting module configured to determine the model of the temperature controller and a first target temperature based on a setting instruction input by an operator; a host electrically connected to the image acquisition device, the temperature sensors and the setting module, and configured to determine a control temperature of the temperature controller based on the images of the instrument panel, determine actual temperatures of the constant-temperature oil at different positions in the constant-temperature oil tank based on the plurality of temperature detection signals, and determine whether a difference between the control temperature and the actual temperatures meets a first preset difference value, and if so, perform normal work, otherwise, generate a first abnormality early warning signal, determine a detection item of the temperature controller based on the model of the temperature controller and the target temperature, and generate a first prompt signal when the actual temperature of the constant-temperature oil reaches the first target temperature.

2. The intelligent testing system according to claim 1, wherein the host is further configured to generate a second abnormality signal when the actual temperature of the constant-temperature oil in the constant-temperature oil tank exceeds a difference value of the first target temperature by a second preset difference value; the host is further configured to generate a third abnormality signal when the constant-temperature oil in the constant-temperature oil tank fails to reach an estimated temperature within a set time, the estimated temperature being 80% of a difference between the first target temperature and an initial temperature of the constant-temperature oil in the constant-temperature oil tank; the host is further configured to generate a second prompt signal when the actual temperature of the constant-temperature oil in the constant-temperature oil tank reaches a third target temperature, the third target temperature being lower than the first target temperature, and the constant-temperature oil in the constant-temperature oil tank reaching the third target temperature has a risk of scalding the operator.

3. The smart verification system of claim 2, wherein, The temperature controller comprises a power supply circuit, and a leakage protection device is arranged in the power supply circuit, and the host is further configured to generate a touch electric shock prevention signal when the temperature controller is connected to a 220V power supply, and generate a leakage reminder signal when a touch electric shock occurs to cause the leakage protection device to cut off the power supply circuit.

4. The smart verification system of claim 3, wherein, Further comprising an alarm module electrically connected to the host, and the alarm module is configured to issue an alarm based on the first abnormality signal, the second abnormality signal, the third abnormality signal, the first prompt signal, the second prompt signal, the touch electric shock prevention signal and the leakage reminder signal.

5. The smart verification system of claim 4, wherein, The alarm module comprises a sound alarm and a light alarm, and the alarm module issues an alarm by means of sound emitted by the sound alarm and light emitted by the light alarm.

6. The smart verification system of claim 5, wherein, Further comprising: a voice reminder module electrically connected to the host and configured to display the first abnormality signal, the second abnormality signal, the third abnormality signal, the first prompt signal, the second prompt signal, the touch electric shock prevention signal and the leakage reminder signal to the operator in the form of voice broadcast.

7. The smart verification system of claim 5, wherein, Further comprising: A display screen is electrically connected to the host computer and configured to display the first abnormal signal, the second abnormal signal, the third abnormal signal, the first prompt signal, the second prompt signal, the electric shock prevention signal and the electric leakage warning signal in the form of images to an operator. The display screen is further configured to display real-time data parameters during the calibration of the temperature controller.

8. The smart verification system of any one of claims 1-7, wherein, The setting module comprises a touch screen and / or physical buttons, wherein the physical buttons include a power button, a confirmation button, a cancel button and a numerical value adjustment button. The setting instruction is formed based on the touch screen being pressed by the operator. The setting instruction is formed based on the physical buttons being pressed.

9. The smart verification system of any one of claims 1-7, wherein, The host computer comprises a built-in database, wherein the database comprises a plurality of types of temperature controllers.

10. The smart verification system of any one of claims 1-7, wherein, Further comprising: A standby oil tank is in communication with the constant-temperature oil tank through a two-way pipeline, and an electric shut-off valve, a flow control valve and an oil pump are arranged on the two-way pipeline, and a cooling module is arranged in the standby oil tank, and the cooling module is used to cool the constant-temperature oil in the standby oil tank; The host computer is connected with the electric shut-off valve, the flow control valve and the oil pump, and is configured to start a cooling program when receiving a cooling instruction, wherein the cooling program is used to open the electric shut-off valve, start the oil pump and adjust the flow of the flow control valve to exchange the constant-temperature oil in the constant-temperature oil tank with the constant-temperature oil in the standby oil tank until the temperature of the constant-temperature oil in the constant-temperature oil tank is reduced to a second target temperature, and then the oil pump and the electric shut-off valve are closed, and the second target temperature is lower than the first target temperature.

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