A type of test method, system, terminal and storage medium

Abstract

The application relates to a type test method, which comprises the following steps: constantly acquiring real-time temperature information of preset sampling points in a tested traction system according to a first sampling frequency; comparing the real-time temperature information of each sampling point at the current moment with reference temperature information of each sampling point at the current moment; when the real-time temperature information at the current moment is greater than the reference temperature information at the current moment, issuing fan starting information to a cooling fan on a test device; judging whether the tested traction system is in a thermal runaway state; if the tested traction system is not in the thermal runaway state, adjusting speed information of the cooling fan to make the real-time temperature information approach the reference temperature information, and uploading and recording the speed information of the fan. The application monitors and responds to a test object with temperature rise greater than a certain standard in the test of a traction system of a railway.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of railway system testing method, and particularly relates to a type test method, a system, a terminal and a storage medium. BACKGROUND

[0002] The type test is a test for verifying whether a product can meet all requirements of a technical specification. It is an indispensable link in the identification of a new product. Only after passing the type test, the product can be formally put into production.

[0003] For the traction system of a railway, an electric control operation mode is mostly adopted at present. Different regional points of the traction system will produce different heat according to different currents. For a standard traction system, a standard temperature rise curve is mostly used to express the overall temperature in a working state. Under preset heat dissipation conditions, the original heat dissipation efficiency does not need to be improved to make the traction system meet the preset temperature rise curve. However, due to the fact that the traction system cannot completely meet the established standard in the manufacturing process, for example, due to the damage of various components, the traction system has a short circuit or a problem of excessive current, the tested traction system needs to be monitored and a corresponding response is needed in the process of type test. SUMMARY

[0004] In order to monitor and make a corresponding response to the tested object with a temperature rise greater than the established standard in the test of the traction system of a railway, the present application provides a type test method, a system, a terminal and a storage medium.

[0005] In a first aspect, the type test method provided by the present application adopts the following technical solution:

[0006] A type test method comprises:

[0007] Constantly acquiring real-time temperature information of preset sampling points in the tested traction system according to a first sampling frequency;

[0008] Comparing the real-time temperature information of each sampling point at the current time with reference temperature information of each sampling point at the current time;

[0009] When the real-time temperature information at the current time is greater than the reference temperature information at the current time, fan start information is issued to a heat dissipation fan on a test device;

[0010] It is judged that the tested traction system is in a thermal runaway state;

[0011] If the tested traction system is not in the thermal runaway state, the speed information of the heat dissipation fan is adjusted to make the real-time temperature information approach the reference temperature information, and the speed information of the fan is uploaded and recorded.

[0012] By adopting the technical scheme, generally speaking, the heat dissipation of the traction system can be controlled at a reasonable temperature around the reference temperature information through the self-heat dissipation mode. When the temperature rise is abnormal, the external heat dissipation mode is needed to assist in heat dissipation to prevent the original heat dissipation condition from being insufficient to cause the temperature to be too high to burn the device or the occurrence of thermal runaway. When the heat dissipation fan can reasonably stabilize the temperature in a range, the rotation speed parameter of the heat dissipation fan is recorded, so that the batch of traction systems can reach a preset working temperature through the way of improving the heat dissipation efficiency.

[0013] Preferably, when the real-time temperature information at the current moment is greater than the reference temperature information at the moment, the difference temperature information between the real-time temperature information and the reference temperature information is obtained.

[0014] The difference temperature information is judged whether it is greater than a threshold temperature difference. When the difference temperature information is greater than the threshold temperature difference, the temperature rise trend information is determined according to the real-time temperature information obtained at a plurality of continuous previous moments.

[0015] When the temperature rise trend information is greater than the preset temperature rise information at the current moment, the rotation speed information of the heat dissipation fan is gradually increased.

[0016] When the rotation speed information of the heat dissipation fan is increased to a maximum value, if the temperature rise trend information is still greater than the preset temperature rise information at the current moment, it is determined that the tested traction system is in a thermal runaway state.

[0017] By adopting the technical scheme, when in the thermal runaway state, it means that the current traction system cannot be well controlled in the maximum heat dissipation efficiency of the test system. If the traction system in the thermal runaway state may cause electronic device failure due to high temperature or fire due to short circuit.

[0018] Preferably, when the difference temperature information is less than the threshold temperature difference, the real-time temperature information and the current room temperature information are obtained.

[0019] The current temperature difference information is calculated according to the real-time temperature information and the current room temperature information.

[0020] The rotation speed information of the heat dissipation fan is updated according to the obtained temperature rise trend information, the preset temperature rise information at the current moment, and the current temperature difference information.

[0021] Preferably, after updating the rotation speed information of the heat dissipation fan, the real-time temperature information and the difference temperature information are obtained at a predetermined interval moment.

[0022] if the real-time temperature information is less than the reference temperature information and the absolute value of the difference temperature information is greater than the threshold temperature difference, then the average of the rotation speed information of the heat dissipation fan before updating and the rotation speed information of the heat dissipation fan after updating is updated as the rotation speed information of the heat dissipation fan;

[0023] if the difference temperature information is greater than the threshold temperature difference, then the temperature rise trend information is recalculated, and the rotation speed information of the heat dissipation fan is updated again according to the temperature rise trend information, the preset temperature rise information at the current time, and the current temperature difference information.

[0024] By adopting the above technical solution, when the temperature is too high and the heat dissipation fan is provided to cool the traction system, if it is found that the real-time temperature is less than the reference temperature information and the absolute value of the difference temperature information is greater than the threshold temperature difference after the specified interval time, it indicates that the heat dissipation efficiency provided by the adjusted rotation speed of the fan makes the temperature before and after adjustment float within the upper and lower boundaries associated with the reference temperature information, so that the temperature can be well controlled within the allowable range by averaging the rotation speeds of the two fans. If the difference temperature information is greater than the threshold temperature difference, it indicates that the required heat dissipation efficiency has not been achieved through one-time compensation, so the rotation speed of the fan is compensated again by acquiring various data.

[0025] Preferably, the temperature rise trend information acquisition method satisfies the formula:

[0026]

[0027] wherein t represents the time at each sampling point, and n represents the number of sampling points, represents the real-time temperature information at each sampling point.

[0028] Preferably, when the tested traction system is in a thermal runaway state, the control test system is disconnected from the tested traction system;

[0029] a driving signal is sent to a pushing mechanism, and the pushing mechanism is used to push the tested traction system away from the test system;

[0030] the rotation speed information of the heat dissipation fan is updated to the maximum wind speed state;

[0031] the rotation direction of the heat dissipation fan is adjusted so that the heat dissipation fan is directly opposite to the tested traction system;

[0032] wherein the heat dissipation fan is located on the test system.

[0033] By adopting the technical scheme, when the tested traction system is in a thermal runaway state, the power supply needs to be quickly cut off to ensure that the traction system will not generate more heat. Generally, the power supply part is in the test system, so quickly separating the test system from the traction system can better hinder the traction system from continuing to generate heat. At the same time, the heat dissipation fan on the test system can also prevent the fire of the traction system from spreading to the test system and causing greater loss.

[0034] Preferably, the movement amount information of the pushing mechanism is acquired in real time during the movement of the pushing mechanism.

[0035] The vertical height information between the heat dissipation fan and the pushing mechanism is acquired.

[0036] The heat point information of the tested traction system is acquired.

[0037] When the heat point information has at least two, the midpoint of the line connecting the two farthest heat point information is taken as the reference point information.

[0038] When the heat point information has only one, the heat point information is taken as the reference point information.

[0039] The reference point displacement information is calculated according to the position of the reference point information on the tested traction system and the movement amount information.

[0040] The rotation angle information of the heat dissipation fan is calculated according to the reference point displacement information and the vertical height information.

[0041] The heat dissipation fan is controlled to rotate to the corresponding angle according to the rotation angle information.

[0042] By adopting the technical scheme, this way can better position the part that needs to be cooled, so that the traction system can always achieve the best cooling effect through the rotation of the fan during the pushing process.

[0043] In the second aspect, a type test system provided by the present application adopts the following technical scheme:

[0044] A type test system comprises,

[0045] A temperature sampling unit is configured to constantly acquire real-time temperature information of preset sampling point positions in the tested traction system according to a first sampling frequency.

[0046] A comparison unit is configured to compare the real-time temperature information of each sampling point position at the current time with reference temperature information of each sampling point position at the current time.

[0047] The heat dissipation fan starting unit is configured to send fan starting information to a heat dissipation fan on the test device when real-time temperature information at the current time is greater than reference temperature information at the current time.

[0048] The judging unit is configured to judge whether the tested traction system is in a thermal runaway state.

[0049] The heat dissipation fan control unit is configured to adjust the rotation speed information of the heat dissipation fan to make the real-time temperature information approach the reference temperature information and upload and record the rotation speed information of the fan if the tested traction system is not in the thermal runaway state.

[0050] In a third aspect, the intelligent terminal provided by the present application adopts the technical scheme as follows:

[0051] The intelligent terminal comprises a memory and a processor, and the memory stores a computer program capable of being loaded and executed by the processor to perform the above type test method.

[0052] In a fourth aspect, the computer storage medium provided by the present application can store a corresponding program and adopts the technical scheme as follows:

[0053] The computer readable storage medium stores a computer program capable of being loaded and executed by the processor to perform any type of test method.

[0054] In summary, in the case that the traction system is in an abnormal temperature rise caused by a large current or a short circuit, the heat dissipation efficiency of the heat dissipation fan on the type test system can be adjusted. In the case that the temperature of the traction system can be stabilized by the heat dissipation fan, the data of the heat dissipation fan is recorded for subsequent adjustment of the heat dissipation efficiency of the traction system of the same batch, so that the traction system can meet the temperature requirements in the actual operation process. BRIEF DESCRIPTION OF DRAWINGS

[0055] Fig. 1 is a flowchart of the type test method of one embodiment of the present application.

[0056] Fig. 2 is a flowchart of judging whether in a thermal runaway state of one embodiment of the present application.

[0057] Fig. 3 is a flowchart of the pushing mechanism pushing out the traction system of one embodiment of the present application. DETAILED DESCRIPTION

[0058] The following will be described in detail in combination with the accompanying drawings. Figs. 1-3 The present application will be further described in detail.

[0059] The embodiment of the present application discloses a type test method, which is applied to a type test system for testing a traction system of a railway. The traction system of the same type has a preset temperature rise curve under all working conditions, and the working temperature and temperature rise trend of each traction system are kept near the temperature rise curve through its own heat dissipation device.

[0060] The type test method disclosed by the embodiment of the present application can adjust the heat dissipation efficiency of the type test system through the heat dissipation fan in the case of abnormal temperature rise caused by large current or short circuit of the traction system. The temperature of the traction system can be stabilized through the heat dissipation fan, and the data of the heat dissipation fan are recorded for subsequent adjustment of the heat dissipation efficiency of the traction system of the same batch, so that the traction system can meet the temperature requirement in actual operation.

[0061] To make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme of the embodiment of the present application will be described clearly and completely in combination with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiment of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0062] In addition, the term "and / or" in the present application is only used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects unless otherwise specified.

[0063] The embodiment of the present application will be described in further detail in combination with the drawings of the specification.

[0064] The embodiment of the present application provides a type test method, referring to Fig. 1 The main flow of the method is described as follows.

[0065] Step S100: constantly obtaining real-time temperature information of a preset sampling point of the tested traction system according to a first sampling frequency.

[0066] The first sampling frequency is a preset frequency, and the preset sampling point refers to a region in the traction system for which temperature monitoring is set. Generally, the first sampling frequency can be every five seconds, that is, every five seconds, the temperature of each preset sampling point is collected to form real-time temperature information. Here, the preset sampling point can be one or multiple. When there are multiple preset sampling points, the temperature obtained by each sampling point is only associated with the sampling point.

[0067] Step S200: Compare the real-time temperature information of each sampling point at the current time with the reference temperature information of each sampling point at the current time.

[0068] The reference temperature information satisfies a preset temperature curve, the abscissa of the temperature curve is the same as the time, and the origin represents the temperature when the traction system starts to run. Generally, the ambient temperature at this time is assumed to be at the highest efficient working temperature. Thus, at each time, a temperature that meets the preset temperature curve can be obtained, which is the reference temperature information at the current time. When there are multiple sampling points, each sampling point has a preset temperature curve, and thus each sampling point has a corresponding reference temperature information at any time.

[0069] Step S300: When the real-time temperature information at the current time is greater than the reference temperature information at the current time, fan start information is issued to the cooling fan on the test device.

[0070] When the real-time temperature information at the current time is greater than the reference temperature information at the current time, it means that the temperature of the traction system at the current time is greater than the preset temperature, indicating that the temperature of the traction system at this time is greater than the preset working temperature. Therefore, the heat dissipation efficiency of the traction system needs to be adjusted, and the heat dissipation efficiency of the traction system can be improved by starting the cooling fan on the test device.

[0071] Step S400: Determine whether the tested traction system is in a thermal runaway state.

[0072] Thermal runaway refers to the situation where the cooling fan cannot continue to provide the required heat dissipation efficiency for the traction system. Since the traction system itself continues to generate a large amount of heat, the temperature continues to rise, and thus the temperature of the traction system cannot be effectively controlled, which may cause damage to the components of the traction system.

[0073] Step S500: If the traction system under test is not in a thermal runaway state, the corresponding adjustment of the rotational speed information of the heat dissipation fan is performed to make the real-time temperature information approach the reference temperature information, and the rotational speed information of the fan is uploaded and recorded.

[0074] With reference to Fig. 2 For the specific determination method of thermal runaway, the following steps are included:

[0075] Step S410: Obtain the difference temperature information between the real-time temperature information and the reference temperature information.

[0076] The difference temperature information refers to the specific temperature value obtained by subtracting the reference temperature information from the real-time temperature information. The real-time temperature information and the reference temperature information are both real-time temperature information obtained at the current time and reference temperature information in the preset temperature curve at the current time.

[0077] Step S420: Determine whether the difference temperature information is greater than the threshold temperature difference. When the difference temperature information is greater than the threshold temperature difference, determine the temperature rise trend information according to the real-time temperature information obtained at a plurality of continuous previous time points.

[0078] The threshold temperature difference is a preset temperature information, which represents the maximum temperature difference that the difference temperature information can tolerate. When the difference temperature is greater than the threshold temperature difference, it means that the traction system needs to be actively cooled by the heat dissipation fan. When the difference temperature is less than the threshold temperature difference, it means that the real-time temperature information is still within the tolerable temperature change range. Generally, the greater the threshold temperature difference, the greater the tolerable temperature change. The size of the threshold temperature difference can be changed according to actual experience. When the difference temperature is less than the threshold temperature difference, no operation is performed.

[0079] The previous time points refer to a sum of the current time point and a plurality of continuous time points before the current time point, and these time points need to be a plurality of continuous time points. The number of previous time points can be selected according to a preset manner, for example, five time points are set as the previous time points, but the current time point is only the third time point, then the continuous adjacent time points from zero time point to the current time point are the required previous time points.

[0080] For the temperature rising trend information, the real-time temperature information obtained at several previous time points can roughly indicate the overall temperature variation trend. For a specific method, it can be represented by a straight line that can represent the temperature at the previous time points, and the slope of the straight line is the temperature rising trend information to be obtained. Generally, the straight line will be located between the points of the distribution (i.e., the horizontal coordinate is the time, and the vertical coordinate is the temperature), and the data between the error sum of squares of each point to the straight line is the minimum in terms of expressing the temperature rising trend information of the previous time points.

[0081] If the straight line equation is expressed in the intercept form, and each point is expressed in the form of horizontal coordinate t and vertical coordinate T, the error sum of squares expressed can be expressed as:

[0082]

[0083] In the formula, i represents one of the previous time points, n represents the total number of time points included in the previous time points, k is the slope of the straight line equation, and w is the error sum of squares.

[0084] Therefore, the error sum of squares needs to be minimized, and only the derivatives of k and b are taken, and both of them are equal to zero, so that the extreme value can be obtained, and the above formula can be rewritten as:

[0085]

[0086] Simplifying the above equation, the solution of the slope is:

[0087]

[0088] Therefore, k is the temperature rising trend information.

[0089] Step S430: When the temperature rising trend information is greater than the preset temperature rising information at the current time point, gradually increase the rotation speed information of the heat dissipation fan.

[0090] Among them, the rotation speed information of the heat dissipation fan can be uniformly increased along the predetermined frequency and along the predetermined step, or the rotation speed of the heat dissipation fan can be increased in the way of first increasing and then decreasing. Generally, the greater the rotation speed of the heat dissipation fan, the greater the heat dissipation efficiency.

[0091] Step S440: When the rotation speed information of the heat dissipation fan is increased to the maximum value, if the temperature rising trend information is still greater than the preset temperature rising information at the current time point, it is determined that the tested traction system is in a thermal runaway state.

[0092] When the rotation speed information of the heat dissipation fan increases to the maximum value, it means that the heat dissipation efficiency of the heat dissipation fan is at the maximum value. At this time, if the temperature rise trend information is still greater than the preset temperature rise information at the current time, it means that the heat dissipation fan at this time cannot curb the temperature rise, and the real-time temperature information cannot approach the reference temperature information. Therefore, it can be determined that the tested traction system is in a thermal runaway state.

[0093] If the difference temperature information can be suppressed to be less than the threshold temperature difference after gradually increasing the rotation speed information of the heat dissipation fan, it means that the temperature can be maintained between the preset reference temperature information by increasing the rotation speed of the heat dissipation fan. And to a certain extent, it also shows that the heat dissipation efficiency provided by the current rotation speed information is much greater than the current requirement, so if it is necessary to stabilize the temperature around the reference temperature information, it is necessary to adjust the fan speed to make the next temperature rise curve meet the temperature rise curve of the reference temperature information. Therefore, in a specific embodiment, it includes:

[0094] Step S450: When the difference temperature information is less than the threshold temperature difference, the real-time temperature information and the current room temperature information are obtained.

[0095] Among them, the current room temperature information represents the temperature in the current environment, and the temperature here can be collected near the air inlet of the heat dissipation fan.

[0096] Step S460: Calculate the current temperature difference information according to the real-time temperature information and the current room temperature information.

[0097] Among them, the current temperature difference information refers to the difference between the real-time temperature information and the current room temperature information.

[0098] Step S470: Update the rotation speed information of the heat dissipation fan according to the obtained temperature rise trend information, the preset temperature rise information at the current time, and the current temperature difference information.

[0099] Among them, the update of the rotation speed information of the heat dissipation fan is based on the collection of the temperature rise trend information, the preset temperature rise information at the current time, and the current temperature difference information. The preset temperature rise information at the current time refers to the temperature rise trend according to the preset reference temperature information at the current time, which can be the tangent slope of the current working temperature curve at the current time.

[0100] For a specific updating method, the temperature rise trend information of the traction system with the configuration parameters in the default working mode, the preset temperature rise information at the current time, the current temperature difference information, and the current speed information of the cooling fan can be collected in an experimental manner, and the parameters are input into the pre-configured training model to obtain a function that meets the expected expectation. The configured training model can be a support vector regression model, and the weights required by each kernel function are updated iteratively by measuring whether each regression parameter meets the expectation, so as to obtain the required training model. After obtaining the trained training model, the temperature rise trend information, the preset temperature rise information at the current time, the current temperature difference information, and the current speed information of the cooling fan are input into the model to obtain the updated speed information of the cooling fan.

[0101] Step S510: After updating the speed information of the cooling fan, the real-time temperature information and the difference temperature information are obtained at the given interval time.

[0102] After updating the speed information of the cooling fan, the speed of the cooling fan is generally adjusted as required, but there is an error between the actual situation and the actual situation, so the specific situation after a given time needs to be judged and feedback to further adjust the speed information of the cooling fan.

[0103] Step S520: If the real-time temperature information is less than the reference temperature information, and the absolute value of the difference temperature information is greater than the threshold temperature difference, the average of the speed information of the cooling fan before updating and the speed information of the cooling fan after updating is updated as the speed information of the cooling fan.

[0104] If the real-time temperature information is less than the reference temperature information, and the absolute value of the difference temperature information is greater than the threshold temperature difference, it means that after adjusting the speed information of the cooling fan and after a given interval time, the real-time temperature decreases to less than the lower limit, so the speed of the cooling fan is greater than the required speed, and the cooling efficiency is too large. And the cooling efficiency provided by the adjusted fan speed makes the temperature before and after adjustment fluctuate in the upper and lower boundaries associated with the reference temperature information, so the temperature can be well controlled in the allowable range by averaging the fan speeds before and after adjustment.

[0105] Step S530: If the difference temperature information is greater than the threshold temperature difference, the temperature rise trend information is recalculated, and the speed information of the cooling fan is updated according to the temperature rise trend information, the preset temperature rise information at the current time, and the current temperature difference information.

[0106] If the difference temperature information is greater than the threshold temperature difference, it means that the required heat dissipation efficiency has not been reached through one compensation, so the speed of the fan is re-compensated based on the obtained data to obtain the required speed information of the heat dissipation fan.

[0107] Until the real-time temperature information obtained after the predetermined interval is still between the upper and lower boundaries allowed by the reference temperature information (i.e., the difference temperature information is less than the threshold temperature), it means that the speed of the current heat dissipation fan has reached the required speed.

[0108] In addition, after determining that the tested traction system is in a thermal runaway state, further operations are required to hinder the continuous abnormal temperature rise of the traction system. Specifically:

[0109] Step S600: When the tested traction system is in a thermal runaway state, the control test system cuts off the connection with the tested traction system.

[0110] The cut-off of the test system and the traction system is to avoid continuous power supply to the traction system. Here, the cut-off means that all test interfaces on the test system are disconnected from the traction system. This step can be realized by using the automatic mechanism of the traction system.

[0111] Step S610: A driving signal is sent to a pushing mechanism, and the pushing mechanism is used to push the tested traction system away from the test system.

[0112] Step S620: The speed information of the heat dissipation fan is updated to the maximum speed state.

[0113] Step S630: Adjust the direction of the heat dissipation fan so that the heat dissipation fan is directly opposite to the tested traction system.

[0114] The heat dissipation fan is located on the test system, and the pushing mechanism is used to push the traction system away from the test system in the horizontal direction. After the pushing mechanism receives the driving signal, the pushing operation is performed to drive the traction system to move in a predetermined direction. During the pushing process, the heat dissipation fan located on the test system continues to blow air to the traction system. If the traction system is short-circuited and causes a fire, the direction of the heat dissipation fan will hinder the spread of the fire towards the test system, and also achieve the purpose of continuous heat dissipation.

[0115] Referring to Fig. 3 The adjustment of the heat dissipation fan in step S630 follows the method:

[0116] S631: During the movement of the pushing mechanism, the movement information of the pushing mechanism is obtained in real time.

[0117] The movement information of the pushing mechanism refers to the movement distance of the pushing mechanism pushing the pulling mechanism in the pushing direction. The movement information can be measured by an encoder or a range finder.

[0118] S632: Obtain the vertical height information between the heat dissipation fan and the pushing mechanism.

[0119] When the pushing mechanism can only move horizontally, the vertical height information between the heat dissipation fan and the pushing mechanism is always a constant value, which can be input into the test system by pre-measurement.

[0120] S633: Obtain the heat point information of the tested pulling system.

[0121] The heat point information represents the position of the heat generation area on the pulling system. The heat generation area can be obtained by a thermal imaging sensor to obtain the area with the highest temperature, which is generally the heat point. Then, the position of the heat point in the plane coordinate can be determined to form the heat point information.

[0122] S634: When there are at least two heat point information, the midpoint of the line connecting the two farthest heat point information is taken as the reference point information.

[0123] S635: When there is only one heat point information, the heat point information is taken as the reference point information.

[0124] When there is only one heat point information, it means that only this place generates heat. When there are at least two heat point information, it means that multiple areas generate heat at the same time. However, since the aforementioned heat runaway state is determined for one area, when one area reaches the heat runaway standard and performs the operations of step S600, a basic temperature value can be set during the determination of heat runaway. When the temperature of any area is higher than the basic temperature value, it can be considered as heat point information. Therefore, for the case of multiple heat point information, the midpoint of the line connecting the two farthest heat point information is taken as the reference point information, and the range of the circle is set to include the two heat point information, so that the remaining heat point information can also be included in this range as much as possible.

[0125] S636: Calculate the reference point displacement information according to the position of the reference point information on the tested pulling system and the movement information.

[0126] The reference point displacement information refers to the straight line distance between the reference point and the projection of the heat dissipation fan on the horizontal plane.

[0127] S637: Calculate the rotation angle information of the cooling fan according to the reference point displacement information and the vertical height information.

[0128] S638: Control the cooling fan to rotate to the corresponding angle according to the rotation angle information.

[0129] Wherein, after the reference point displacement information and the vertical height information are determined, the specific rotation angle can be calculated by the angle between the two sides being 90°, and the cooling fan can be rotated to the preset rotation angle. The rotation of the cooling fan can be controlled by a servo motor, so that the rotation to the rotation angle can be accurately met.

[0130] Based on the same inventive concept, the application also discloses a type test system, which comprises:

[0131] A temperature sampling unit is configured to constantly acquire real-time temperature information of preset sampling points in the tested traction system according to a first sampling frequency.

[0132] A comparison unit is configured to compare the real-time temperature information of each sampling point at the current time with the reference temperature information of each sampling point at the current time.

[0133] A cooling fan starting unit is configured to send fan starting information to the cooling fan on the test device when the real-time temperature information at the current time is greater than the reference temperature information at the current time.

[0134] A judgment unit is configured to judge whether the tested traction system is in a thermal runaway state.

[0135] A cooling fan control unit is configured to adjust the rotation speed information of the cooling fan to make the real-time temperature information approach the reference temperature information if the tested traction system is not in a thermal runaway state, and upload and record the rotation speed information of the fan.

[0136] Based on the same inventive concept, the application provides an intelligent terminal, which comprises a memory and a processor, and the memory stores a computer program capable of being loaded and executed by the processor. Figs. 1-3 Any type of test method.

[0137] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is exemplified, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0138] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other manners. For example, the described device embodiments are merely schematic. Taking the division of the modules or units as an example, the division can be changed in actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections can be indirect couplings or communication connections through some interfaces, devices or units, and can be in electrical, mechanical or other forms.

[0139] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0140] In addition, each functional unit in the various embodiments of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0141] The embodiment of the present application also provides a computer readable storage medium, which stores a program capable of being loaded and executed by a processor to realize the steps of the method described in the flow. Figs. 1-3 The steps of the method described in the flow.

[0142] When the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in the various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0143] The above-described embodiments are only used to specifically describe the technical solutions of the present application, and the descriptions of the above embodiments are only used to help understand the method of the present application and its core idea, and should not be construed as limitation on the present application. Within the technical range disclosed by the present application, changes or replacements that can be easily thought of by those skilled in the art should be covered within the protection scope of the present application.

Claims

1. A pattern test method characterized by, The method comprises the following steps: constantly acquiring real-time temperature information of preset sampling points in the tested traction system according to a first sampling frequency; comparing the real-time temperature information of each sampling point at the current time with reference temperature information of each sampling point at the current time; when the real-time temperature information at the current time is greater than the reference temperature information at the current time, issuing fan start information to a cooling fan on the test equipment; judging whether the tested traction system is in a thermal runaway state; if the tested traction system is not in the thermal runaway state, adjusting the rotation speed information of the cooling fan to make the real-time temperature information approach the reference temperature information, and uploading and recording the rotation speed information of the fan; when the tested traction system is in the thermal runaway state, controlling the test system to cut off the connection with the tested traction system; issuing a driving signal to a pushing mechanism, and the pushing mechanism is used to push the tested traction system away from the test system; updating the rotation speed information of the cooling fan to a maximum wind speed state; adjusting the rotation direction of the cooling fan to make the cooling fan face the tested traction system; wherein the cooling fan is located on the test system; acquiring the movement amount information of the pushing mechanism in the process of movement of the pushing mechanism; acquiring the vertical height information between the cooling fan and the pushing mechanism; acquiring the heat point information of the tested traction system; when there are at least two heat point information, taking the midpoint of the line connecting the two farthest heat point information as the reference point information; when there is only one heat point information, taking the heat point information as the reference point information; calculating the reference point displacement information according to the position of the reference point information on the tested traction system and the movement amount information; calculating the rotation angle information of the cooling fan according to the reference point displacement information and the vertical height information; controlling the cooling fan to rotate to the corresponding angle according to the rotation angle information.

2. The type test method according to claim 1, wherein when the real-time temperature information at the current time is greater than the reference temperature information at the current time, acquiring the difference temperature information between the real-time temperature information and the reference temperature information; judging whether the difference temperature information is greater than a threshold temperature difference, and when the difference temperature information is greater than the threshold temperature difference, judging the temperature rise trend information according to the real-time temperature information acquired at a plurality of continuous previous time points; when the temperature rise trend information is greater than the preset temperature rise information at the current time, gradually increasing the rotation speed information of the cooling fan; when the rotation speed information of the cooling fan is increased to the maximum value, if the temperature rise trend information is still greater than the preset temperature rise information at the current time, it is determined that the tested traction system is in the thermal runaway state.

3. The type test method according to claim 2, wherein when the difference temperature information is less than the threshold temperature difference, acquiring the real-time temperature information and the current room temperature information; calculating the current temperature difference information according to the real-time temperature information and the current room temperature information; updating the rotation speed information of the cooling fan according to the acquired temperature rise trend information, the preset temperature rise information at the current time, and the current temperature difference information.

4. The type test method according to claim 3, wherein After the rotation speed information of the heat dissipation fan is updated, real-time temperature information and difference temperature information are acquired after a predetermined interval; if the real-time temperature information is less than the reference temperature information and the absolute value of the difference temperature information is greater than a threshold temperature difference, the average of the rotation speed information of the heat dissipation fan before the update and the rotation speed information of the heat dissipation fan after the update is used to update the rotation speed information of the heat dissipation fan; If the difference temperature information is greater than the threshold temperature difference, the temperature rise trend information is recalculated, and the rotation speed information of the heat dissipation fan is updated again according to the temperature rise trend information, the preset temperature rise information at the current time, and the current temperature difference information.

5. The method of claim 2-4, wherein, The method for acquiring the temperature rise trend information satisfies the formula: Wherein, t i representing each time, n represents the sum of the time contained in the previous time, T i representing real-time temperature information at each time.

6. A pattern test system characterized by, including, The temperature sampling unit is configured to continuously acquire real-time temperature information of preset sampling points in the tested traction system according to a first sampling frequency. The comparison unit is configured to compare the real-time temperature information of each sampling point at the current time with reference temperature information of each sampling point at the current time. The heat dissipation fan starting unit is configured to send fan starting information to the heat dissipation fan on the test device when the real-time temperature information at the current time is greater than the reference temperature information at the current time. The judgment unit is configured to determine whether the tested traction system is in a thermal runaway state. The heat dissipation fan control unit is configured to adjust the rotation speed information of the heat dissipation fan to make the real-time temperature information approach the reference temperature information if the tested traction system is not in the thermal runaway state, and upload and record the rotation speed information of the fan. When the tested traction system is in the thermal runaway state, the test system is controlled to cut off the connection with the tested traction system. A driving signal is sent to the pushing mechanism, and the pushing mechanism is configured to push the tested traction system away from the test system. The rotation speed information of the heat dissipation fan is updated to the maximum wind speed state. The rotation direction of the heat dissipation fan is adjusted to make the heat dissipation fan face the tested traction system. The heat dissipation fan is located on the test system. The movement amount information of the pushing mechanism is acquired in real time during the movement of the pushing mechanism. The vertical height information between the heat dissipation fan and the pushing mechanism is acquired. The heat generation point information of the tested traction system is acquired. When there are at least two heat generation point information, the midpoint of the line connecting the two farthest heat generation points is taken as the reference point information; when there is only one heat generation point information, the heat generation point information is taken as the reference point information. The reference point displacement information is calculated according to the position of the reference point information on the tested traction system and the movement amount information. The rotation angle information of the heat dissipation fan is calculated according to the reference point displacement information and the vertical height information. The rotation angle information of the heat dissipation fan is calculated according to the rotation angle information.

7. A smart terminal, characterized by The computer program capable of being loaded and executed by the processor to execute any one of the methods of claims 1-5 is stored in the memory.

8. A computer-readable storage medium, characterized in that, The computer program capable of being loaded and executed by the processor to execute any one of the methods of claims 1-5 is stored.

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