A heat exchange type automatic temperature control system and method for a trailer radar in alpine regions

Abstract

The present invention relates to the technical field of trailer radars, and discloses a heat exchange type automatic temperature control system and method for a trailer radar in alpine regions. The central processing system constructs a temperature rise control prediction time series of the in-vehicle heating device under different heating modes. The central processing system automatically selects the heating mode of the in-vehicle heating device based on the heat loss temperature and the desired temperature control time, so that the trailer radar can be within the constant temperature safety environment temperature range at the desired temperature control time; The local temperature generated during the operation of the slope radar is monitored in real time. According to the change time series of the local temperature, the heat exchange efficiency inside the slope radar and the trailer radar is determined. The central processing system combines the heat exchange efficiency to regulate and change the heating mode of the in-vehicle heating device and the operation of the local cooling device, so that the slope radar is always maintained within the set safe operating temperature range; The present invention realizes fully automatic temperature control, ensures that the temperature change range inside the trailer is small, and thus achieves the purpose of energy saving and power saving.

Description

Technical Field

[0001] The present invention relates to the technical field of trailer radars, and particularly to a heat exchange type automatic temperature control system and method for a trailer radar in alpine regions. Background Art

[0002] The outdoor temperature in alpine regions is very low. Therefore, in order to facilitate manual data collection of exploration information, a slope radar is installed in a trailer. A transparent glass is provided on the side of the trailer radar, which can transmit radar waves for slope monitoring. The slope radar moves back and forth along the crossbar to achieve comprehensive exploration.

[0003] Most of the electricity consumption inside the trailer, such as the moving electricity consumption of the slope radar, the data collection and processing electricity consumption, and the heating electricity consumption, is supplied by a generator. Therefore, it is necessary to save electricity as much as possible to ensure stable power supply for the slope radar and data collection and processing. Therefore, only the heating electricity consumption of the personnel can be saved. Currently, for indoor heating work, air conditioners or heaters are mostly used. When the indoor temperature is lower than the set value, the temperature is automatically adjusted to increase, and when the indoor temperature is higher than the set value, the air conditioner or heater is automatically adjusted to turn off.

[0004] However, the current trailer radar temperature control system has the following defects:

[0005] Firstly, the local working temperature of the slope radar is not considered. Due to the reciprocating movement of the slope radar, heat is generated by friction, which will cause local high temperature of the slope radar and affect its service life.

[0006] Secondly, the existing heating working mode based on the temperature control inside the trailer does not consider the heat exchange between the trailer and the alpine environment outside the vehicle. Due to the heat exchange between the trailer and the alpine environment outside the vehicle, the temperature inside the trailer fluctuates greatly. Therefore, a high-power heating mode is mostly used to heat the inside of the trailer, resulting in low energy utilization efficiency and high power consumption. Summary of the Invention

[0007] The purpose of the present invention is to provide a heat exchange type automatic temperature control system and method for a trailer radar in alpine regions, so as to solve the technical problems in the prior art that the local working temperature of the slope radar is not considered, which will cause local high temperature of the slope radar and affect its service life, and the existing heating working mode based on the temperature control inside the trailer leads to large fluctuations in indoor temperature and high power consumption.

[0008] To solve the above technical problems, the present invention specifically provides the following technical solutions:

[0009] A heat exchange type automatic temperature control system for a trailer radar in alpine regions, comprising:

[0010] A trailer temperature sensor for obtaining the overall temperature of the internal space of the trailer radar in real time;

[0011] A radar operating temperature sensor for obtaining the local temperature generated during the operation of the slope radar in real time;

[0012] An in-vehicle heating device for heating the interior of the trailer radar;

[0013] A local cooling device installed at the location of the slope radar for performing local cooling on the slope radar by exchanging heat with the location where the slope radar is located when the local temperature generated during the operation of the slope radar exceeds the safe operating temperature range;

[0014] A central processing system respectively connected to the trailer temperature sensor, the radar operating temperature sensor, the in-vehicle heating device and the local cooling device;

[0015] The central processing system constructs a heating control prediction time series sequence for the in-vehicle heating device in different heating modes, and determines the heat loss time series sequence of the trailer radar by combining the predicted temperature of the heating control prediction time series sequence and the measured temperature of the trailer temperature sensor;

[0016] The central processing system automatically selects the heating mode of the in-vehicle heating device by combining the heat loss time series sequence and the expected temperature control time, so that the trailer radar can be maintained within the set constant temperature safe environment temperature range at the expected temperature control time;

[0017] The central processing system monitors the local temperature generated during the operation of the slope radar in real time based on the radar operating temperature sensor. The central processing system determines the heat exchange efficiency of the slope radar according to the change time series of the local temperature, and the central processing system controls the operation of the local cooling device by combining the heat exchange efficiency, so that the slope radar is always maintained within the set safe operating temperature range.

[0018] As a preferred solution of the present invention, the central processing system constructs a heating control prediction time series sequence based on the predicted heating temperature of each heating mode of the in-vehicle heating device, and determines the heat loss temperature according to the difference between the in-vehicle temperature monitored in real time by the trailer temperature sensor and the heating control prediction time series sequence, and constructs a heat loss time series sequence of the heat loss temperature changing with the in-vehicle temperature;

[0019] Among them, the specific implementation method of constructing the heat loss time series sequence is:

[0020] Determine the heat transfer space inside the trailer radar according to the internal three-dimensional space model of the trailer radar;

[0021] Determine the desired temperature rise of the trailer radar per unit time based on the heat transfer space of the trailer radar and the predicted time sequence of temperature rise regulation for each heating mode of the in-vehicle heating device;

[0022] Determine the actual temperature rise of the trailer radar per unit time according to the monitoring data of the temperature sensor in the trailer;

[0023] Determine the heat loss temperature based on the desired temperature rise and the actual temperature rise, and construct a heat loss time sequence based on the change of the heat loss temperature over time.

[0024] As a preferred solution of the present invention, the specific expression of the heat loss time sequence is:

[0025] {Gp(1), Gp(2), Gp(3), …… Gp(j)} = {( , ( …… ( };

[0026] In the formula, Gp(1), Gp(2), Gp(3), …… Gp(j) are the heat loss temperatures corresponding to each time point;

[0027] is the desired temperature rise of the in-vehicle heating device in each heating mode;

[0028] tj is the actual temperature rise monitored by the temperature sensor in the trailer in each heating mode;

[0029] j is the heating time point of the in-vehicle heating device;

[0030] Determine the change curve of the heat loss time sequence by fitting {Gp(1), Gp(2), Gp(3), …… Gp(j)}.

[0031] As a preferred solution of the present invention, when automatically selecting the heating mode of the in-vehicle heating device by combining the heat loss time sequence and the desired temperature control time, when the heating mode in the in-vehicle heating device satisfies the following formula, it is considered that the heating mode meets the heating requirements;

[0032] (Desired temperature control time) - Gp(Desired temperature control time) ≥ Yu, where (Desired temperature control time) is the desired temperature rise at the desired temperature control time for each heating mode, Gp(Desired temperature control time) is the heat loss temperature at the desired temperature control time of the heat loss time sequence, and Yu is the set constant temperature safety environment temperature;

[0033] After the temperature inside the trailer radar reaches the constant-temperature safe environment temperature, actively adjust the heating mode of the in-vehicle heating device so that the overall temperature of the internal space of the trailer radar reaches stability.

[0034] As a preferred solution of the present invention, when When there is more than one heating mode satisfying (desired temperature control time) - Gp(desired temperature control time) ≥ Yu, perform secondary screening based on the operating power of each selected heating mode, select the heating mode with the minimum power as the operating mode of the in-vehicle heating device, and initially reach the safe environment temperature range according to this heating mode;

[0035] After reaching the safe environment temperature range, determine the heat loss temperature per unit time when reaching the safe environment temperature range based on the change curve of the heat loss time series, and automatically adjust the heating mode of the in-vehicle heating device so that the heating temperature per unit time of the adjusted heating mode is the same as the heat loss temperature per unit time of the heat loss time series.

[0036] As a preferred solution of the present invention, after the temperature sensor inside the trailer monitors that the overall temperature of the internal space of the trailer radar is damaged again, record the external environment temperature after this re-damage and the corresponding time of the day, the central processing system updates the heat loss time series, and combines the heat loss time series with the time change of a day to form a heat loss replacement time series of the trailer radar in this alpine region;

[0037] The central processing system selects a corresponding heating mode based on the changed heat loss temperature to make the overall temperature of the internal space of the trailer radar reach stability again;

[0038] The central processing system forms a heating mode regulation historical trajectory of the in-vehicle heating device according to the heat loss replacement time series, and the central processing system actively adjusts the heating mode of the in-vehicle heating device in turn according to this heating mode regulation historical trajectory to perform predictive temperature management on the trailer radar.

[0039] As a preferred solution of the present invention, the central processing system determines the implementation method of the heat exchange efficiency of the slope radar according to the change time series of the local temperature as follows:

[0040] Place the slope radar in a test space with no heat exchange space, count the local temperature generated by the operation of the slope radar, and fit to form a local temperature change curve;

[0041] Use a radar operating temperature sensor to monitor the operating temperature of the slope radar installed in the trailer in real time, count the real-time temperature changes of the slope radar under different heating modes of the in-vehicle heating device in the vehicle, and fit to form the operating temperature change curve of the slope radar under different heating modes;

[0042] Based on the difference between the local temperature change curve and the operating temperature change curve, determine the internal heat exchange value between the slope radar and the internal heat transfer space of the trailer under different heating modes.

[0043] As a preferred solution of the present invention, based on the internal heat exchange value, predict the cooling time required for the operating temperature of the slope radar to actively drop to the safe operating temperature range under different heating modes of the in-vehicle heating device;

[0044] Compare the predicted cooling times under different heating modes with the safe tolerance time of the slope radar respectively, and control the operation of the local cooling device according to the comparison results.

[0045] As a preferred solution of the present invention, when the cooling time exceeds the safe tolerance time of the slope radar, start the operation of the local cooling device, wherein the local cooling device realizes rapid cooling of the slope radar by performing passive heat exchange between the working area of the trailer radar and the cold air in the external environment of the trailer.

[0046] When the cooling time is lower than the safe tolerance time of the slope radar, do not start the local cooling device, and control the in-vehicle heating device to work in a heating mode that conforms to the cooling time.

[0047] In addition, the present invention also provides a temperature control method for a heat exchange type automatic temperature control system of a trailer radar in alpine regions, including the following steps:

[0048] Step 100: Form an internal three-dimensional space model of the trailer radar, and based on the internal three-dimensional space model of the trailer radar, determine the temperature increase per unit time of different heating modes of the in-vehicle heating device in this space;

[0049] Step 200: Combine the temperature increase value per unit time of different heating modes of the current in-vehicle heating device and the heat loss temperature per unit time formed inside the trailer radar through internal and external heat exchange to determine the time required for the in-vehicle heating device to heat the trailer radar to the desired temperature value under different heating modes;

[0050] Step 300: Select the heating mode of the in-vehicle heating device based on the time required for the in-vehicle heating device to heat the trailer radar to the desired temperature value, and keep the temperature in the trailer radar constant by automatically and instantaneously adjusting the heating mode of the in-vehicle heating device;

[0051] Step 400: Real-time monitor the working temperature of the slope radar, determine the cooling temperature corresponding to different heating modes of the in-vehicle heating device per unit time of the slope radar, predict the cooling time required for the slope radar to cool down to the safe working temperature range, and when the cooling time exceeds the set threshold, perform fixed-point cooling on the slope radar by exchanging heat with the external environment;

[0052] Step 500: When the slope radar returns to less than the set threshold and the overall temperature inside the trailer radar is lower than the safe ambient temperature range, repeat Steps 200 - 400 to keep the overall temperature inside the trailer radar and the local temperature generated during the operation of the slope radar in a dynamic equilibrium state.

[0053] The present invention has the following beneficial effects compared with the prior art:

[0054] By calculating the cooling change caused by the heat exchange between the trailer radar itself and the outdoor environment per unit time, with the aim of saving electricity for the trailer radar used outdoors and extending the working duration, considering the cooling change caused by the heat exchange between the trailer radar itself and the outdoor environment per unit time, the corresponding heating mode can be selected more precisely, so that the temperature inside the trailer radar is always maintained within the set safe ambient temperature range, thereby saving electricity while ensuring a stable ambient temperature inside the trailer radar.

[0055] Moreover, when regulating the local temperature of the working area of the slope radar, the cooling regulation method gives priority to the internal heat exchange method for cooling, which can ensure a small temperature change range inside the trailer, thus achieving the purpose of energy saving and power consumption reduction, and further ensuring the working stability of the slope radar. Moreover, the slope radar can always be at a suitable temperature, improving the stability and lifespan of the equipment. Description of the Drawings

[0056] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained according to the provided drawings.

[0057] Figure 1 It is the structural block diagram of the heat exchange type automatic temperature control system of the embodiment of the present invention.

[0058] Figure 2 It is a schematic flow chart of the heat exchange type automatic temperature control method according to an embodiment of the present invention.

[0059] In the figure: the temperature sensor 1 inside the trailer, the radar operating temperature sensor 2, the vehicle interior heating device 3, the local cooling device 4, and the central processing system 5. Specific embodiments

[0060] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0061] As Figure 1 shown, the present invention provides a heat exchange type automatic temperature control system for a trailer radar in alpine regions, including: the temperature sensor 1 inside the trailer, the radar operating temperature sensor 2, the vehicle interior heating device 3, the local cooling device 4, and the central processing system 5.

[0062] The temperature sensor 1 inside the trailer is used to obtain the overall temperature of the internal space of the trailer radar in real time;

[0063] The radar operating temperature sensor 2 is used to obtain the local temperature generated when the slope radar is working in real time;

[0064] The vehicle interior heating device 3 is used to perform a heating operation on the interior of the trailer radar;

[0065] The local cooling device 4 is installed at the location of the slope radar and is used to perform local cooling on the slope radar by exchanging heat with the location where the slope radar is located when the local temperature generated when the slope radar is working exceeds the safe operating temperature range;

[0066] The central processing system 5 is respectively connected to the temperature sensor 1 inside the trailer, the radar operating temperature sensor 2, the vehicle interior heating device 3, and the local cooling device 4;

[0067] The central processing system 5 constructs a heating control prediction time series sequence of the vehicle interior heating device 3 in different heating modes, and determines the heat loss time series sequence of the trailer radar by combining the predicted temperature of the heating control prediction time series sequence and the measured temperature of the temperature sensor 1 inside the trailer;

[0068] The central processing system 5 automatically selects the heating mode of the vehicle interior heating device 3 by combining the heat loss time series sequence and the expected temperature control time, so that the trailer radar can be maintained within the set constant temperature and safe environmental temperature range at the expected temperature control time;

[0069] The central processing system 5 monitors in real time the local temperature generated during the operation of the slope radar based on the radar operating temperature sensor 2. The central processing system 5 determines the heat exchange efficiency of the slope radar according to the change timing of the local temperature. The central processing system 5 controls the operation of the local cooling device 4 in combination with the heat exchange efficiency, so that the slope radar is kept within the set safe operating temperature range in real time.

[0070] The trailer radar disclosed in this embodiment is used in alpine regions. In this embodiment, by calculating the cooling change caused by the heat exchange between the trailer radar itself and the outdoor environment per unit time, the heating mode of the in-vehicle heating device 3 is automatically selected specifically, so that the temperature inside the trailer radar is kept within the set safe environment temperature range in real time, with the aim of saving electricity for the trailer radar used outdoors and extending the working duration. Considering the cooling change caused by the heat exchange between the trailer radar itself and the outdoor environment per unit time, the corresponding heating mode can be selected more accurately, so that while ensuring a stable environment temperature inside the trailer radar, electricity can also be saved.

[0071] At the same time, this embodiment also adds the monitoring of the operating temperature of the slope radar. When the temperature inside the trailer radar is kept within the set safe environment temperature range, for example, at room temperature of 25°C, due to the reciprocating cyclic movement monitoring of the slope radar, the temperature of the guide rail of the slope radar will increase due to friction, which will affect the safety performance of the slope radar itself. Therefore, this embodiment considers the safe operation of the slope radar to control the in-vehicle heating device 3, and combines the local temperature of the slope radar to adjust the implementation method of the entire heating work and the specific cooling method of the slope radar.

[0072] In summary, the temperature control method provided in this embodiment takes into account the heat exchange between the trailer radar indoors and outdoors. Based on the matching result between the heat loss temperature between the trailer radar and the outdoors and the different heating modes of the in-vehicle heating device 3, the central processing system 5 can directly select the corresponding heating mode to keep the temperature inside the trailer in dynamic balance.

[0073] In addition, the local temperature generated during the operation of the slope radar is monitored in real time. When the local temperature exceeds the safe operating temperature range, first, when the in-vehicle heating device 3 is in different heating modes, the cooling time corresponding to the local temperature of the slope radar returning to the safe operating temperature range is recorded. If the cooling time in a certain heating mode meets the safe tolerance time, the in-vehicle heating device 3 is controlled to switch to this heating mode until the temperature drops to within the safe temperature range. If the cooling times in all heating modes do not meet the safe tolerance time, the local cooling device 4 is directly controlled to operate for rapid cooling.

[0074] Among them, the specific advantages of the above control method are as follows: When the cooling time obtained by only regulating the heating mode of the in-vehicle heating device 3 meets the safe tolerance time, at this time, due to a certain heat exchange between the trailer radar and the outside, the temperature inside the trailer will decrease, but the temperature drop inside the trailer is relatively low. After the local temperature of the slope radar is controlled and cooled, when the temperature inside the trailer radar is raised again to the safe ambient temperature range, the consumed electric energy is less at this time, and the total energy consumption for the local temperature management of the slope radar by this method is also relatively small.

[0075] If the cooling time in all heating modes does not meet the safe tolerance time, then it is necessary to directly control the local cooling device 4 to work for rapid cooling. Since the outdoor temperature in alpine regions reaches minus 20 or even lower, when cooling the slope radar through heat exchange, the temperature inside the trailer will inevitably drop rapidly. Therefore, to raise the temperature inside the trailer back to the safe ambient temperature range, the consumed electric energy is relatively high, and the local cooling device 4 also needs to consume energy. Therefore, the total energy consumption for local temperature management by this method is relatively large.

[0076] Therefore, this embodiment preferably first regulates the heating mode of the in-vehicle heating device 3 to meet the cooling time of the slope radar, and on the premise of meeting the service life and performance of the slope radar, it can also reduce energy consumption.

[0077] Among them, in order to enable the central processing system 5 to automatically and intelligently select the heating mode of the in-vehicle heating device 3 to keep the temperature inside the trailer in dynamic balance, it is necessary to determine the heat loss temperature between the inside of the trailer and the outdoor environment, and construct a heat loss time series to determine the change in heat loss temperature within a day in this alpine region.

[0078] The central processing system 5 constructs a heating control prediction time series based on the predicted heating temperature of each heating mode of the in-vehicle heating device 3, and determines the heat loss temperature according to the difference between the in-vehicle temperature monitored by the in-vehicle temperature sensor 1 in real time and the heating control prediction time series, and constructs a heat loss time series of the heat loss temperature changing with the in-vehicle temperature;

[0079] Among them, the specific implementation method of constructing the heat loss time series is as follows:

[0080] Determine the heat transfer space inside the trailer radar according to the internal three-dimensional space model of the trailer radar;

[0081] Based on the heat transfer space of the trailer radar and the heating control prediction time series of each heating mode of the in-vehicle heating device 3, determine the expected heating temperature of the trailer radar per unit time;

[0082] Determine the actual heating temperature of the trailer radar per unit time according to the monitoring data of the in-vehicle temperature sensor 1 in the trailer;

[0083] Determine the heat loss temperature based on the expected temperature rise and the actual temperature rise, and construct a heat loss time series based on the change of the heat loss temperature over time.

[0084] In this embodiment, the heat transfer space is specifically the idle space inside the trailer. The heating temperatures of different heating modes of the in-vehicle heating device (3) are different, and the temperature rise per unit time formed inside the trailer is also different. For example, the temperature rise per unit time in the high heating mode is a, the temperature rise per unit time in the medium heating mode is b, and the temperature rise per unit time in the low heating mode is c, where a > b > c.

[0085] In order to improve the accuracy of calculating the heat loss temperature, in this embodiment, the heat loss temperature of the trailer radar per unit time is determined through the constructed temperature rise regulation prediction time series, and a heat loss time series is constructed; the specific expression of the heat loss time series is:

[0086] {Gp(1), Gp(2), Gp(3), …… Gp(j)} = {( , ( …… ( };

[0087] In the formula, Gp(1), Gp(2), Gp(3), …… Gp(j) are the heat loss temperatures corresponding to each time point;

[0088] is the expected temperature rise of the in-vehicle heating device 3 in each heating mode;

[0089] tj is the actual temperature rise monitored by the in-trailer temperature sensor 1 in each heating mode;

[0090] j is the temperature rise time point of the in-vehicle heating device 3;

[0091] By fitting {Gp(1), Gp(2), Gp(3), …… Gp(j)}, the change curve of the heat loss time series is determined.

[0092] It should be particularly noted that in this embodiment, the heat loss temperatures formed between the expected temperature rises and the actual temperature rises corresponding to all heating modes of the in-vehicle heating device 3 are averaged and calculated as the heat loss temperature formed by the final heat exchange between the inside and outside of the trailer at each time point, thereby improving the calculation accuracy of the heat loss temperature.

[0093] When automatically selecting the heating mode of the in-vehicle heating device 3 by combining the heat loss time series and the expected temperature control time, when the heating mode in the in-vehicle heating device 3 satisfies the following formula, it is considered that the heating mode meets the heating requirements.

[0094] When (desired temperature control time) - Gp(desired temperature control time) ≥ Yu, where (desired temperature control time) is the desired heating temperature of each heating mode at the desired temperature control time, Gp(desired temperature control time) is the heat loss temperature of the heat loss time series at the desired temperature control time, and Yu is the set constant temperature safety environment temperature.

[0095] After the temperature inside the trailer radar reaches the constant temperature safety environment temperature, actively adjust the heating mode of the in-vehicle heating device 3 so that the overall temperature of the internal space of the trailer radar reaches stability.

[0096] When When there is more than one heating mode satisfying (desired temperature control time) - Gp(desired temperature control time) ≥ Yu, perform a secondary screening based on the operating power of each selected heating mode, and select the heating mode with the minimum power as the operating mode of the in-vehicle heating device 3, and initially reach the safety environment temperature range according to this heating mode;

[0097] After reaching the safety environment temperature range, determine the heat loss temperature per unit time when reaching the safety environment temperature range based on the change curve of the heat loss time series, and automatically adjust the heating mode of the in-vehicle heating device 3 so that the heating temperature per unit time of the adjusted heating mode is the same as the heat loss temperature per unit time of the heat loss time series.

[0098] This embodiment specifically controls the temperature control work inside the trailer radar, which is divided into a heating process and a temperature maintenance process. The heating process specifically refers to raising the overall temperature of the internal space of the trailer radar to the safety environment temperature range according to the desired temperature control time. After that, the temperature maintenance process refers to determining the heat loss temperature corresponding to the current time point to select the corresponding heating mode, so that the desired heating temperature per unit time of the trailer is the same as the heat loss temperature per unit time, and the trailer radar is maintained within the safety environment temperature range.

[0099] In addition, the above process of calculating the heat loss temperature does not take into account the change of the heat loss temperature with the change of the external environment temperature within a day. The heat loss temperatures under each heating mode may be slightly different, and are specifically related to the specific values of the outdoor environment temperature. For example, when the outdoor environment temperature decreases, the heat loss temperature relatively increases, and when the outdoor environment temperature increases, the heat loss temperature relatively decreases.

[0100] If the temperature of the external environment of the trailer changes suddenly, the temperature of heat loss changes. At this time, after the temperature sensor 1 inside the trailer monitors that the overall temperature of the internal space of the trailer radar is damaged again, it records the external environment temperature after the re-damage and the corresponding time of the day. The central processing system 5 updates the heat loss time sequence, and combines the heat loss time sequence with the time change of a day to form the heat loss replacement time sequence of the trailer radar in this alpine region.

[0101] The central processing system 5 selects the corresponding heating mode based on the changed heat loss temperature to make the overall temperature of the internal space of the trailer radar reach stability again.

[0102] The central processing system 5 forms the heating mode regulation historical trajectory of the in-vehicle heating device 3 according to the heat loss replacement time sequence, and the central processing system 5 actively adjusts the heating mode of the in-vehicle heating device 3 in turn according to this heating mode regulation historical trajectory to perform pre-trip temperature management on the trailer radar.

[0103] That is to say, the heat loss time sequence is combined with the time axis of a day, so as to determine the corresponding heat loss temperature change based on the time change of a day. For example, in the morning and evening, the heat loss temperature inside the trailer is relatively large, while at noon, the heat loss temperature inside the trailer is relatively small.

[0104] Based on the heat loss replacement time sequence, the central processing system 5 can determine each time point when the heating mode of the in-vehicle heating device 3 needs to be adjusted, so that the trailer radar can be automatically re-heated and regulated at this time point, so that the trailer radar always maintains a constant temperature state, and selects the corresponding heating mode based on the changed heat loss temperature data to make the overall temperature of the internal space of the trailer radar reach stability again.

[0105] In specific applications, when performing temperature management on the trailer on the second day, the heating mode of the in-vehicle heating device 3 can be actively adjusted in turn according to the heat loss replacement time sequence of the previous day for different time nodes, so that the temperature fluctuation inside the trailer radar is small, and the internal temperature is almost kept in a balanced and stable state, and the energy consumption is also reduced, achieving the purpose of saving electricity.

[0106] Since the environmental temperature inside the trailer is kept in a balanced and stable normal temperature state, and the reciprocating cyclic movement of the slope radar generates heat by friction, it will cause the local area of the slope radar to generate a high temperature exceeding the normal temperature, affecting the service life.

[0107] When the radar operating temperature sensor 2 monitors that the local temperature generated by the operation of the slope radar exceeds the set safe operating temperature range, the central processing system 5 determines the implementation method of the heat exchange efficiency between the slope radar and the inside of the trailer according to the change time sequence of the local temperature:

[0108] Place the slope radar in the test space without heat exchange space, count the local temperature generated by the operation of the slope radar, and fit to form a local temperature change curve;

[0109] Use the radar operating temperature sensor 2 to monitor the operating temperature of the slope radar installed in the trailer in real time, count the real-time temperature changes of the slope radar in the different heating modes of the in-vehicle heating device 3 in the in-vehicle heating device 3, and fit to form the operating temperature change curve of the slope radar in different heating modes;

[0110] Based on the differences between the local temperature change curve and the operating temperature change curve, determine the internal heat exchange values between the slope radar and the internal heat transfer space of the trailer under different heating modes.

[0111] Based on the internal heat exchange values, predict the cooling time required for the operating temperature of the slope radar to actively drop to the safe operating temperature range under different heating modes of the in-vehicle heating device 3;

[0112] Compare the predicted cooling times under different heating modes with the safe tolerance time of the slope radar respectively, and regulate the operation of the local cooling device 4 according to the comparison results.

[0113] Specifically, when the cooling time exceeds the safe tolerance time of the slope radar, start the operation of the local cooling device 4. Among them, the local cooling device 4 realizes the rapid cooling of the slope radar by passively exchanging heat between the working area of the trailer radar and the cold air outside the trailer.

[0114] When the cooling time is lower than the safe tolerance time of the slope radar, the local cooling device 4 is not started, and the in-vehicle heating device 3 is regulated to work in a heating mode that conforms to the cooling time.

[0115] Furthermore, the expected heating temperature per unit time of the in-vehicle heating device 3 is different under different heating modes. Therefore, when the heating efficiency of the adjusted heating mode decreases, the overall temperature of the internal space of the trailer radar is damaged again. Under the influence of the heat loss temperature, the ambient temperature inside the trailer radar will continue to decrease. Thus, the temperature of the working area of the slope radar exchanges heat internally with the inside of the trailer to reduce the temperature of the slope radar.

[0116] Since the overall temperature of the internal space of the trailer radar continues to decrease, the temperature of the working area of the slope radar exchanges heat internally with the inside of the trailer to reduce the temperature of the slope radar. Then, there is an internal heat exchange value between the trailer radar and the slope radar. Based on the internal heat exchange value, determine the time required for the slope radar to drop to the safe operating temperature range. According to the comparison result between the cooling time and the safe tolerance time of the slope radar, select to regulate the heating mode of the in-vehicle heating device 3 or start the operation of the local cooling device 4.

[0117] The specific advantages are as follows: If only the heating mode of the in-vehicle heating device 3 is adjusted to meet the cooling time, the temperature drop inside the trailer radar is relatively low. After the local temperature of the slope radar is controlled and cooled, if the temperature inside the trailer radar needs to be increased to return to the safe ambient temperature range, less electric energy is consumed.

[0118] Since the outdoor temperature in alpine regions reaches minus 20 or even lower, when cooling the slope radar through heat exchange, the temperature inside the trailer radar will inevitably drop rapidly. Therefore, if the temperature inside the trailer radar needs to be increased to return to the safe ambient temperature range, more electric energy is consumed.

[0119] Therefore, in this embodiment, it is preferably to first adjust the heating mode of the in-vehicle heating device 3 to meet the cooling time of the slope radar. On the premise of meeting the service life and performance of the slope radar, it can also reduce energy consumption.

[0120] In addition, based on the above heat exchange type automatic temperature control system for trailer radar in alpine regions, the present invention also provides a heat exchange type automatic temperature control method for trailer radar in alpine regions, including the following steps:

[0121] Step 100: Form an internal three-dimensional space model of the trailer radar, and based on the internal three-dimensional space model of the trailer radar, determine the heating temperature per unit time of different heating modes of the in-vehicle heating device in this space;

[0122] Step 200: Combine the temperature increase value per unit time of different heating modes of the current in-vehicle heating device, and the heat loss temperature per unit time formed inside the trailer radar through internal and external heat exchange, to determine the time required for the in-vehicle heating device to heat the trailer radar to the desired temperature value in different heating modes;

[0123] Step 300: Select the heating mode of the in-vehicle heating device based on the time required for the in-vehicle heating device to heat the trailer radar to the desired temperature value, and keep the temperature inside the trailer radar constant by automatically and instantaneously adjusting the heating mode of the in-vehicle heating device;

[0124] Step 400: Real-time monitor the working temperature of the slope radar, and determine the corresponding cooling temperature of the slope radar per unit time in different heating modes of the in-vehicle heating device, predict the cooling time required for the slope radar to cool to the safe working temperature range, and when the cooling time exceeds the set threshold, perform fixed-point cooling on the slope radar through heat exchange with the external environment;

[0125] Step 500: When the slope radar returns to a value less than the set threshold and the overall temperature inside the trailer radar is lower than the safe ambient temperature range, repeat Steps 200 - 400 so that both the overall temperature inside the trailer radar and the local temperature generated during the operation of the slope radar are in a dynamic equilibrium state.

[0126] Through the above heat exchange type automatic temperature control method, the present invention can ensure that both the overall ambient temperature inside the trailer and the local temperature in the working area of the slope radar are maintained in a dynamic equilibrium state, thereby not only improving the warmth of the staff but also ensuring the service life of the slope radar. At the same time, it also realizes fully automated temperature regulation, ensures a small temperature change range inside the trailer, thus achieving the purpose of energy conservation and power saving, and further ensuring the working stability of the slope radar.

[0127] The above embodiments are only exemplary embodiments of the present application and are not used to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of the present application, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present application.

Claims

1. A heat exchange type automatic temperature control system for a trailer radar in alpine regions, characterized in that, Including: A temperature sensor (1) inside the trailer, which is used to obtain the overall temperature of the internal space of the trailer radar in real time; A radar operating temperature sensor (2), which is used to obtain the local temperature generated during the operation of the slope radar in real time; An in-vehicle heating device (3), which is used to perform a heating operation on the inside of the trailer radar; A local cooling device (4), which is installed at the location of the slope radar and is used to perform local cooling on the slope radar by exchanging heat with the location where the slope radar is located when the local temperature generated during the operation of the slope radar exceeds the safe operating temperature range; A central processing system (5), which is respectively connected to the temperature sensor (1) inside the trailer, the radar operating temperature sensor (2), the in-vehicle heating device (3) and the local cooling device (4); The central processing system (5) constructs a predicted time series of temperature control for the in-vehicle heating device (3) in different heating modes, and determines the heat loss time series of the trailer radar by combining the predicted temperature of the predicted time series of temperature control and the measured temperature of the temperature sensor (1) inside the trailer; The central processing system (5) automatically selects the heating mode of the in-vehicle heating device (3) by combining the heat loss time series and the desired temperature control time, so that the trailer radar can maintain within the set constant temperature and safe environmental temperature range at the desired temperature control time; The central processing system (5) monitors the local temperature generated during the operation of the slope radar in real time based on the radar operating temperature sensor (2). The central processing system (5) determines the heat exchange efficiency of the slope radar according to the change time series of the local temperature. The central processing system (5) controls the operation of the local cooling device (4) by combining the heat exchange efficiency, so that the slope radar always maintains within the set safe operating temperature range; The central processing system (5) constructs a predicted time series of temperature control based on the predicted heating temperature of each heating mode of the in-vehicle heating device (3), and determines the heat loss temperature according to the difference between the in-vehicle temperature monitored in real time by the temperature sensor (1) inside the trailer and the predicted time series of temperature control, and constructs a heat loss time series of the heat loss temperature changing with the in-vehicle temperature.

2. The heat exchange type automatic temperature control system for a trailer radar in a high-cold area according to claim 1, characterized in that The specific implementation method for constructing the heat loss time series is: Determine the heat transfer space inside the trailer radar according to the internal three-dimensional space model of the trailer radar; Based on the heat transfer space of the trailer radar and the predicted time series of temperature control of each heating mode of the in-vehicle heating device (3), determine the desired heating temperature of the trailer radar per unit time; Determine the actual heating temperature of the trailer radar per unit time according to the monitoring data of the temperature sensor (1) inside the trailer; Determine the heat loss temperature based on the desired heating temperature and the actual heating temperature, and construct a heat loss time series based on the change of the heat loss temperature over time.

3. The heat exchange type automatic temperature control system for a trailer radar in a high-cold area according to claim 2, characterized in that The specific expression of the heat loss time series is as follows: {Gp(1), Gp(2), Gp(3), …… Gp(j)} = , ( …… ; Where Gp(1), Gp(2), Gp(3), …… Gp(j) are the heat loss temperatures corresponding to each time point; is the desired temperature increase for the in-vehicle heating device (3) in each heating mode; is the actual temperature rise monitored by the temperature sensor (1) in the trailer under each heating mode; j is the heating time point of the in-vehicle heating device (3); By fitting {Gp(1), Gp(2), Gp(3), …… Gp(j)}, the change curve of the heat loss time series is determined.

4. The heat exchange type automatic temperature control system for a trailer radar in alpine regions according to claim 3, wherein, When automatically selecting the heating mode of the in-vehicle heating device (3) by combining the heat loss time series and the expected temperature control time, when the heating mode in the in-vehicle heating device (3) satisfies the following formula, it is considered that this heating mode meets the heating requirements; When (desired temperature control time) - Gp(desired temperature control time) ≥ Yu, where (desired temperature control time) is the desired heating temperature at the desired temperature control time for each heating mode, Gp(desired temperature control time) is the heat loss temperature at the desired temperature control time in the heat loss time series, and Yu is the set constant temperature safety ambient temperature; After the temperature in the trailer radar reaches the constant temperature safety environment temperature, actively adjust the heating mode of the in-vehicle heating device (3) so that the overall temperature of the internal space of the trailer radar reaches stability.

5. The heat exchange type automatic temperature control system for a trailer radar in alpine regions according to claim 4, characterized in that, When it satisfies When there is more than one heating mode when (desired temperature control time) - Gp(desired temperature control time) ≥ Yu, secondary screening is performed based on the operating power of each selected heating mode, and the heating mode with the minimum power is selected as the operating mode of the in-vehicle heating device (3), and initially reach the safe ambient temperature range according to this heating mode; After reaching the safe environment temperature range, based on the change curve of the heat loss time series, determine the heat loss temperature per unit time when reaching the safe environment temperature range, and automatically adjust the heating mode of the in-vehicle heating device (3) so that the heating temperature per unit time of the adjusted heating mode is the same as the heat loss temperature per unit time of the heat loss time series.

6. The heat exchange type automatic temperature control system of a trailer radar in alpine regions according to claim 5, characterized in that, After the overall temperature of the internal space of the trailer radar is detected to be damaged again by the temperature sensor (1) in the trailer, record the external environment temperature after this re-damage and the corresponding time of the day. The central processing system (5) updates the heat loss time series and combines the heat loss time series with the time change of a day to form a heat loss replacement time series of the trailer radar in this alpine region; The central processing system (5) matches and selects the corresponding heating mode based on the changed heat loss temperature so that the overall temperature of the internal space of the trailer radar reaches stability again; The central processing system (5) forms the heating mode regulation historical trajectory of the in-vehicle heating device (3) according to the heat loss replacement time series, and the central processing system (5) actively adjusts the heating mode of the in-vehicle heating device (3) in sequence according to this heating mode regulation historical trajectory to perform pre-trip temperature management on the trailer radar.

7. The heat exchange type automatic temperature control system for a trailer radar in alpine regions according to claim 1, characterized in that, The central processing system (5) determines the implementation method of the heat exchange efficiency of the slope radar according to the change time series of the local temperature as follows: Place the slope radar in a test space without heat exchange space, count the local temperature generated by the operation of the slope radar, and fit to form a local temperature change curve; Use the radar operating temperature sensor (2) to monitor the operating temperature of the slope radar installed in the trailer in real time, count the real-time temperature changes of the slope radar under different heating modes of the in-vehicle heating device (3), and fit to form the operating temperature change curve of the slope radar under different heating modes; Based on the difference between the local temperature change curve and the operating temperature change curve, determine the internal heat exchange values between the slope radar and the internal heat transfer space of the trailer under different heating modes.

8. The heat exchange type automatic temperature control system for a trailer radar in a high-cold region according to claim 7, characterized in that Predict the cooling time required for the working temperature of the slope radar to actively drop to the safe working temperature range under different heating modes of the in-vehicle heating device (3) based on the internal heat exchange value; Compare the predicted cooling times under different heating modes with the safe tolerance time of the slope radar respectively, and control the operation of the local cooling device (4) according to the comparison results.

9. The heat exchange type automatic temperature control system of a trailer radar in alpine regions according to claim 8, wherein, When the cooling time exceeds the safe tolerance time of the slope radar, start the operation of the local cooling device (4), wherein the local cooling device (4) realizes rapid cooling of the slope radar by passively exchanging heat between the working area of the trailer radar and the cold air in the external environment of the trailer; When the cooling time is lower than the safe tolerance time of the slope radar, the local cooling device (4) is not started, and the in-vehicle heating device (3) is controlled to work in a heating mode that conforms to the cooling time.

10. A temperature control method for a heat exchange type automatic temperature control system of a trailer radar in high-cold regions according to any one of claims 1-9, characterized in that, It includes the following steps: Step 100: Form an internal three-dimensional space model of the trailer radar, and determine the heating temperature per unit time of different heating modes of the in-vehicle heating device in this space based on the internal three-dimensional space model of the trailer radar; Step 200: Combine the temperature increase value per unit time of different heating modes of the current in-vehicle heating device and the heat loss temperature per unit time formed inside the trailer radar through internal and external heat exchange to determine the time required for the in-vehicle heating device to heat the trailer radar to the desired temperature value under different heating modes; Step 300: Select the heating mode of the in-vehicle heating device based on the time required for the in-vehicle heating device to heat the trailer radar to the desired temperature value, and keep the temperature in the trailer radar constant by automatically and immediately adjusting the heating mode of the in-vehicle heating device; Step 400: Monitor the working temperature of the slope radar in real time, determine the corresponding cooling temperature of the slope radar per unit time under different heating modes of the in-vehicle heating device, predict the cooling time required for the slope radar to cool to the safe working temperature range, and perform fixed-point cooling on the slope radar by exchanging heat with the external environment when the cooling time exceeds the set threshold; Step 500: When the slope radar returns to less than the set threshold and the overall temperature inside the trailer radar is lower than the safe environmental temperature range, repeat steps 200 - 400 to make the overall temperature inside the trailer radar and the local temperature generated during the operation of the slope radar both in a dynamic equilibrium state.

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