Heat exchange type automatic temperature control system and method for trailer radar in alpine region

Abstract

The 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 an alpine region. A central processing system constructs a temperature rise regulation and control prediction time sequence of an in-vehicle temperature rise device in different temperature rise modes; the central processing system automatically selects a heating mode of a heating device in the vehicle based on the heat loss temperature and the expected temperature control time, so that the trailer radar can be in a constant-temperature safe environment temperature range within the expected temperature control time; local temperature generated when the side slope radar works is monitored in real time, the heat exchange efficiency in the side slope radar and the trailer radar is determined according to the change time sequence of the local temperature, and the central processing system adjusts and changes the heating mode of the heating device in the vehicle and the work of the local cooling device in combination with the heat exchange efficiency. The slope radar is kept in a set safe working temperature range in real time; full-automatic temperature regulation and control are achieved, it is guaranteed that the temperature change amplitude in the trailer is small, and therefore the purpose of saving energy and electricity is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of trailer radars, and in particular to a heat exchange type automatic temperature control system and method for trailer radars in high-cold areas. Background Art

[0002] The outdoor temperature in the alpine region is very low. Therefore, in order to facilitate manual data collection and exploration information collection, the slope radar is installed in the trailer. Transparent glass is set on the side of the trailer radar. The transparent glass can monitor the slope through radar waves, and the slope radar moves back and forth along the measure to achieve comprehensive exploration.

[0003] The electricity used inside the trailer, such as the mobile electricity used for slope radar, electricity used for data collection and processing, and electricity used for heating, is mostly supplied by generators. 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, electricity can only be saved from artificial heating. At present, air conditioners or heaters are mostly used for indoor heating. When the indoor temperature is lower than the set value, the temperature is automatically increased by automatic control. When the indoor temperature is lower than the set value, the air conditioner or heater is automatically turned off by automatic control.

[0004] However, the current trailer radar temperature control system has the following defects: First, the local operating temperature of the slope radar is not taken into consideration. Due to the reciprocating movement of the slope radar, frictional heat is generated, which will cause the local temperature of the slope radar to be high, affecting its service life. Secondly, the existing temperature control and heating working mode based on the temperature inside the trailer does not take into account the heat exchange between the trailer and the cold environment outside the vehicle. Since the heat exchange between the trailer and the cold environment outside the vehicle will cause large temperature fluctuations inside the trailer, most of them use high-power heating mode to heat up the interior of the trailer, which will result in low energy utilization and high power consumption. Summary of the invention

[0005] The purpose of the present invention is to provide a heat exchange automatic temperature control system and method for a trailer radar in high-cold areas, so as to solve the technical problems that the local operating temperature of the slope radar is not taken into account in the prior art, which will cause the local high temperature of the slope radar and affect the service life, and the existing temperature control and heating working mode based on the temperature in the trailer leads to large fluctuations in indoor temperature and high power consumption.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions: A heat exchange automatic temperature control system for trailer radar in high-cold areas, comprising: The temperature sensor inside the trailer is used to obtain the overall temperature of the space inside the trailer radar in real time; Radar operation temperature sensor, used to obtain the local temperature generated when the slope radar is working in real time; An in-vehicle heating device, used for heating the interior of the trailer radar; A local cooling device is installed at the location of the slope radar, and is used to locally cool the slope radar when the local temperature generated by the slope radar when it is working exceeds the safe operating temperature range by performing heat exchange with the location of the slope radar; The central processing system is respectively connected with the temperature sensor in the trailer, the radar operation temperature sensor, the heating device in the vehicle and the local cooling device; The central processing system constructs a temperature rise control prediction time series sequence of the vehicle interior temperature rise device in different temperature rise modes, and determines a heat loss time series sequence of the trailer radar in combination with the predicted temperature of the temperature rise control prediction time series sequence and the measured temperature of the temperature sensor in the trailer; The central processing system automatically selects a heating mode of the vehicle interior heating device in combination with the heat loss timing sequence and the expected temperature control time, so that the trailer radar can be kept within a set constant temperature safety environment temperature range during the expected temperature control time; The central processing system monitors the local temperature generated when the slope radar is working in real time based on the radar operation temperature sensor. The central processing system determines the heat exchange efficiency of the slope radar according to the time sequence of changes in the local temperature. The central processing system regulates the operation of the local cooling device in combination with the heat exchange efficiency, so that the slope radar is maintained in real time within a set safe operating temperature range.

[0007] As a preferred solution of the present invention, the central processing system constructs a temperature rise control prediction time series sequence based on the predicted temperature rise of each temperature rise mode of the vehicle interior temperature rise device, determines the heat loss temperature according to the difference between the vehicle interior temperature monitored in real time by the temperature sensor in the trailer and the temperature rise control prediction time series sequence, and constructs a heat loss time series sequence in which the heat loss temperature changes with the vehicle interior temperature; Among them, the specific implementation method of constructing the heat loss time series is: determining a heat transfer space inside the trailer radar according to an internal three-dimensional space model of the trailer radar; Determine the expected heating temperature of the trailer radar in unit time 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; Determining the actual temperature rise of the trailer radar within a unit time according to the monitoring data of the temperature sensor in the trailer; The heat loss temperature is determined based on the expected warm-up temperature and the actual warm-up temperature, and a heat loss time series sequence is constructed based on the change of the heat loss temperature over time.

[0008] As a preferred embodiment of the present invention, the specific expression of the heat loss time series is: {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 expected heating temperature of the vehicle interior heating device in each heating mode; tj is the actual heating temperature monitored by the temperature sensor in the trailer in each heating mode; j is the heating time point of the in-vehicle heating device; By fitting the {Gp(1), Gp(2), Gp(3), ...Gp(j)}, the variation curve of the heat loss time series is determined.

[0009] As a preferred solution of the present invention, when the heating mode of the in-vehicle heating device is automatically selected in combination with the heat loss timing sequence and the expected 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 requirement; (Expected temperature control time)-Gp(Expected temperature control time)≥Yu, where: (Expected temperature control time) is the expected temperature rise of each heating mode at the expected temperature control time, Gp (expected temperature control time) is the heat loss temperature of the heat loss time sequence at the expected temperature control time, and Yu is the set constant temperature safety environment temperature; After the temperature inside the trailer radar reaches the constant temperature safety environment temperature, the heating mode of the in-vehicle heating device is actively adjusted to stabilize the overall temperature of the interior space of the trailer radar.

[0010] As a preferred embodiment of the present invention, when When there is more than one heating mode when (expected temperature control time)-Gp(expected 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, and the safe ambient temperature range is initially reached according to the heating mode; After reaching the safe ambient temperature range, the heat loss temperature per unit time when reaching the safe ambient temperature range is determined based on the change curve of the heat loss time series, and the heating mode of the in-vehicle heating device is automatically adjusted 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.

[0011] As a preferred solution of the present invention, after the temperature sensor in the trailer detects that the overall temperature of the internal space of the trailer radar is re-damaged, the temperature of the external environment after the re-damage and the corresponding time of the day are recorded, and the central processing system updates the heat loss time series sequence, and combines the heat loss time series sequence with the time change of a day to form a heat loss replacement time series of the trailer radar in the high-cold area; The central processing system selects a corresponding heating mode based on the changed heat loss temperature matching, so that the overall temperature of the interior space of the trailer radar can be stabilized again; The central processing system forms a historical trajectory of the heating mode control of the in-vehicle heating device according to the heat loss replacement time sequence, and the central processing system installs the heating mode control historical trajectory to actively adjust the heating mode of the in-vehicle heating device in sequence to perform preemptive temperature management of the trailer radar.

[0012] As a preferred solution of the present invention, the central processing system determines the heat exchange efficiency of the slope radar according to the time sequence of the local temperature change in the following manner: The slope radar is placed in a test space without a heat exchange space, and local temperatures generated by the slope radar are counted to form a local temperature change curve by fitting; Using a radar operating temperature sensor to monitor the working temperature of a slope radar installed in a trailer in real time, counting the real-time temperature change of the slope radar under different heating modes of the in-vehicle heating device, and fitting to form a working temperature change curve of the slope radar under different heating modes; Based on the difference between the local temperature change curve and the working temperature change curve, the internal heat exchange values ​​between the slope radar and the internal heat transfer space of the trailer under different heating modes are determined.

[0013] As a preferred solution of the present invention, based on the internal heat exchange rating, the cooling time required for the operating temperature of the slope radar to actively drop to a safe operating temperature range under different heating modes of the in-vehicle heating device is predicted; The cooling time predicted under different heating modes is compared with the safety tolerance time of the slope radar, and the operation of the local cooling device is regulated according to the comparison results.

[0014] As a preferred solution of the present invention, when the cooling time exceeds the safe tolerance time of the slope radar, the local cooling device is started, wherein the local cooling device achieves 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.

[0015] When the cooling time is lower than the safety tolerance time of the slope radar, the local cooling device is not started, and the heating device in the vehicle is regulated to operate in a heating mode that matches the cooling time.

[0016] In addition, the present invention also provides a temperature control method of a heat exchange type automatic temperature control system of a trailer radar in a high-cold region, comprising the following steps: Step 100: forming an internal three-dimensional space model of the trailer radar, and determining the heating temperatures per unit time of different heating modes of the in-vehicle heating device in the space based on the internal three-dimensional space model of the trailer radar; Step 200, determining the time required for the in-vehicle heating device to heat the trailer radar to a desired temperature value in different heating modes, based on the temperature rise values ​​in different heating modes of the in-vehicle heating device in a unit time and the heat loss temperature in a unit time formed inside the trailer radar through internal and external heat exchange; Step 300: selecting a 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 a desired temperature value, and maintaining a constant temperature in the trailer radar by automatically and instantly 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 cooling temperature of the slope radar in different heating modes of the vehicle heating device per unit time, predict the cooling time required for the slope radar to cool down to a safe working temperature range, and when the cooling time exceeds a set threshold, perform fixed-point cooling of the slope radar by heat exchange with the external environment; Step 500: When the slope radar recovers to a temperature less than a set threshold and the overall temperature in the trailer radar is lower than a safe ambient temperature range, repeat steps 200 to 400 to ensure that the overall temperature in the trailer radar and the local temperature generated when the slope radar is working are in a dynamic equilibrium state.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention calculates the temperature drop caused by the heat exchange between the trailer radar itself and the outdoor environment within a unit time, takes saving the power consumption of the trailer radar used outdoors and extending the working time as the starting point, and considers the temperature drop caused by the heat exchange between the trailer radar itself and the outdoor environment within a unit time. The corresponding heating mode can be selected more accurately, so that the trailer radar is kept within the set safe ambient temperature range in real time, thereby being able to save power while ensuring that the ambient temperature inside the trailer radar is kept stable. In addition, when adjusting the local temperature of the slope radar working area, the cooling control method gives priority to cooling by internal heat exchange, which can ensure that the temperature change inside the trailer is small, thereby achieving the purpose of energy saving and power saving, and then ensuring the working stability of the slope radar. The slope radar can always be kept at a suitable temperature, thereby improving the stability and life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] Figure 1 4 is a structural block diagram of a heat exchange type automatic temperature control system according to an embodiment of the present invention.

[0020] Figure 2 The figure is a flow chart of a heat exchange type automatic temperature control method according to an embodiment of the present invention.

[0021] In the figure: temperature sensor in the trailer 1, radar operation temperature sensor 2, vehicle interior heating device 3, local cooling device 4, central processing system 5. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1 As shown, the present invention provides a heat exchange automatic temperature control system for a trailer radar in a high-cold area, comprising: a temperature sensor 1 in the trailer, a radar operation temperature sensor 2, an in-vehicle heating device 3, a local cooling device 4 and a central processing system 5.

[0024] The temperature sensor 1 in the trailer is used to obtain the overall temperature of the interior space of the trailer radar in real time; The radar operation temperature sensor 2 is used to obtain the local temperature generated when the slope radar is working in real time; The vehicle interior heating device 3 is used to heat the interior of the trailer radar; The local cooling device 4 is installed at the location of the slope radar, and is used to perform heat exchange with the location of the slope radar, so as to locally cool the slope radar when the local temperature generated when the slope radar is working exceeds the safe working temperature range; The central processing system 5 is respectively connected to the trailer temperature sensor 1, the radar operation temperature sensor 2, the vehicle interior heating device 3 and the local cooling device 4; The central processing system 5 constructs a temperature rise control prediction time series sequence of the vehicle interior temperature rise device 3 in different temperature rise modes, and determines a heat loss time series sequence of the trailer radar by combining the predicted temperature of the temperature rise control prediction time series sequence and the measured temperature of the temperature sensor 1 in the trailer; The central processing system 5 automatically selects the heating mode of the in-vehicle heating device 3 in combination with the heat loss timing sequence and the desired temperature control time, so that the trailer radar can be kept within the set constant temperature safety environment temperature range during the desired temperature control time; The central processing system 5 monitors the local temperature generated when the slope radar is working in real time based on the radar operation temperature sensor 2. The central processing system 5 determines the heat exchange efficiency of the slope radar according to the time sequence of the local temperature change. The central processing system 5 controls the operation of the local cooling device 4 based on the heat exchange efficiency, so that the slope radar is kept within the set safe operating temperature range in real time.

[0025] The trailer radar disclosed in this embodiment is used in high-cold areas. This embodiment automatically selects the heating mode of the vehicle interior heating device 3 by calculating the temperature drop caused by heat exchange between the trailer radar itself and the outdoor environment per unit time, so that the interior of the trailer radar is kept within the set safe ambient temperature range in real time. The starting point is to save electricity for the trailer radar used outdoors and extend the working hours. Considering the temperature drop caused by heat exchange between the trailer radar itself and the outdoor environment per unit time, the corresponding heating mode can be selected more accurately, thereby saving electricity while ensuring that the ambient temperature inside the trailer radar is kept stable.

[0026] At the same time, the present embodiment also adds the working temperature monitoring of the slope radar. When the trailer radar is kept in the set safe environment temperature range in real time, such as the normal temperature of 25°C, the reciprocating cyclic movement monitoring of the slope radar will increase the temperature friction of the guide rail of the slope radar, thereby affecting the safety performance of the slope radar itself. Therefore, the present embodiment considers the safe operation of the slope radar to regulate 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.

[0027] In summary, the temperature control method provided in this embodiment takes into account the heat exchange between the indoor and outdoor parts of the trailer radar. Therefore, based on the matching results between the heat loss temperature between the trailer radar and the outdoor part 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.

[0028] In addition, the local temperature generated when the slope radar is working is monitored in real time. When the local temperature exceeds the safe operating temperature range, the in-vehicle heating device 3 is in different heating modes, and the local temperature of the slope radar is restored to the corresponding cooling time when it reaches the safe operating temperature range. If the cooling time under a certain heating mode meets the safe tolerance time, the in-vehicle heating device 3 is adjusted to switch to the heating mode until the temperature drops to the safe temperature range. If the cooling time under all heating modes does not meet the safe tolerance time, the local cooling device 4 is directly adjusted to work for rapid cooling.

[0029] Among them, the specific advantage of the above-mentioned control method is that: if the cooling time obtained by only adjusting the heating mode of the in-vehicle heating device 3 meets the safety tolerance time, the trailer radar will have a certain heat exchange with the outside, causing the temperature inside the trailer to decrease, but the temperature drop inside the trailer is relatively low. After the local temperature of the slope radar is controlled to cool down, the temperature inside the trailer radar is restored to the safe ambient temperature range. At this time, less electric energy is consumed, and the total energy consumption of the local temperature management of the slope radar by this method is also relatively small.

[0030] If the cooling time under all heating modes does not meet the safety tolerance time, it is necessary to directly adjust the local cooling device 4 to work for rapid cooling. Since the outdoor temperature in high-altitude cold areas reaches minus 20 degrees or even lower, when the slope radar is cooled by heat exchange, the temperature inside the trailer will inevitably drop rapidly. Therefore, to increase the temperature inside the trailer to restore it to a safe ambient temperature range, the consumed electric energy is relatively high, and the local cooling device 4 also consumes energy. Therefore, the total energy consumption for local temperature management in this method is relatively high.

[0031] Therefore, the present embodiment preferably first adjusts the heating mode of the in-vehicle heating device 3 to meet the cooling time of the slope radar, and can also reduce energy consumption while meeting the service life and performance of the slope radar.

[0032] 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 interior of the trailer and the outdoor environment, and construct a heat loss time series sequence to determine the heat loss temperature change in the high-cold area within a day.

[0033] The central processing system 5 constructs a temperature rise control prediction time series sequence based on the predicted temperature rise of each temperature rise mode of the vehicle interior temperature rise device 3, determines the heat loss temperature according to the difference between the vehicle interior temperature monitored in real time by the vehicle interior temperature sensor 1 and the temperature rise control prediction time series sequence, and constructs a heat loss time series sequence in which the heat loss temperature changes with the vehicle interior temperature; Among them, the specific implementation method of 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 temperature rise control prediction time series of each temperature rise mode of the in-vehicle temperature rise device 3, the expected temperature rise of the trailer radar in unit time is determined; Determine the actual temperature rise of the trailer radar within a unit time according to the monitoring data of the temperature sensor 1 in the trailer; The heat loss temperature is determined based on the expected warm-up temperature and the actual warm-up temperature, and a heat loss time series is constructed based on the change of the heat loss temperature over time.

[0034] In this embodiment, the heat transfer space is specifically an empty space in the trailer, and the heating temperatures of different heating modes of the in-vehicle heating device (3) are different, and the heating temperatures per unit time formed in the trailer are also different. For example, the heating temperature per unit time in the high heating mode is a, the heating temperature per unit time in the medium heating mode is b, and the heating temperature per unit time in the low heating mode is c, wherein a>b>c.

[0035] In order to improve the accuracy of calculating the heat loss temperature, this embodiment determines the heat loss temperature of the trailer radar in unit time by constructing a temperature rise control prediction time series sequence, and constructs a heat loss time series sequence; the specific expression of the heat loss time series sequence is: {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 expected heating temperature of the vehicle interior heating device 3 in each heating mode; tj is the actual heating temperature monitored by the temperature sensor 1 in the trailer in each heating mode; j is the heating time point of the vehicle interior heating device 3; By fitting {Gp(1), Gp(2), Gp(3), ...Gp(j)}, the variation curve of the heat loss time series is determined.

[0036] It should be particularly noted that this embodiment averages the heat loss temperature formed between the expected heating temperature and the actual heating temperature corresponding to all heating modes of the in-vehicle heating device 3 as the heat loss temperature formed by the final heat exchange between the inside and outside environments of the trailer at each time point, thereby improving the calculation accuracy of the heat loss temperature.

[0037] When the heating mode of the in-vehicle heating device 3 is automatically selected in combination with the heat loss timing sequence 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 requirement.

[0038] (Expected temperature control time)-Gp(Expected temperature control time)≥Yu, where: (Expected temperature control time) is the expected temperature rise temperature of each heating mode at the expected temperature control time, Gp (expected temperature control time) is the heat loss temperature of the heat loss timing sequence at the expected temperature control time, and Yu is the set constant temperature safety environment temperature.

[0039] After the temperature inside the trailer radar reaches the constant temperature safety environment temperature, the heating mode of the vehicle interior heating device 3 is actively adjusted to stabilize the overall temperature of the interior space of the trailer radar.

[0040] When satisfied When there is more than one heating mode when (expected temperature control time)-Gp(expected 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 the safe ambient temperature range is initially reached according to the heating mode; After reaching the safe ambient temperature range, the heat loss temperature per unit time when reaching the safe ambient temperature range is determined based on the change curve of the heat loss time series, and the heating mode of the in-vehicle heating device 3 is automatically adjusted 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.

[0041] The present embodiment specifically regulates the temperature control work within the trailer radar, which is divided into a heating process and a temperature maintenance process. The heating process specifically refers to bringing the overall temperature of the internal space of the trailer radar to a safe ambient temperature range according to the expected temperature control time. Thereafter, 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 expected heating temperature of the trailer per unit time is the same as the heat loss temperature per unit time, so that the trailer radar is maintained within a safe ambient temperature range.

[0042] In addition, the above process of calculating the heat loss temperature does not take into account the change of the heat loss temperature as the external ambient temperature changes during the day. The heat loss temperature in each heating mode may be slightly different and is specifically related to the specific value of the outdoor ambient temperature. For example, when the outdoor ambient temperature decreases, the heat loss temperature increases relatively, and when the outdoor ambient temperature increases, the heat loss temperature decreases relatively.

[0043] If the temperature of the trailer's external environment changes suddenly, the heat loss temperature will change. At this time, the temperature sensor 1 in the trailer detects that the overall temperature of the internal space of the trailer radar is re-destroyed, and records the re-destroyed external environment temperature and the corresponding time of the day. The central processing system 5 updates the heat loss time series sequence, and combines the heat loss time series sequence with the time changes of a day to form a heat loss replacement time series of the trailer radar in the high-altitude and cold area.

[0044] The central processing system 5 selects a corresponding heating mode based on the changed heat loss temperature matching, so that the overall temperature of the interior space of the trailer radar can be stabilized again.

[0045] The central processing system 5 forms a historical trajectory of the heating mode control of the in-vehicle heating device 3 according to the heat loss replacement time series, and the central processing system 5 installs the heating mode control historical trajectory to actively adjust the heating mode of the in-vehicle heating device 3 in sequence to perform preemptive temperature management of the trailer radar.

[0046] That is to say, the heat loss time series is combined with the time axis of a day to determine the corresponding heat loss temperature changes based on the changes in time of the day. For example, in the morning and evening, the heat loss temperature in the trailer is relatively large, while at noon, the heat loss temperature in the trailer is relatively small.

[0047] Based on the heat loss alternation time series, the central processing system 5 can determine each time point at which the heating mode of the in-vehicle heating device 3 needs to be adjusted, so that the trailer radar can be automatically subjected to secondary temperature control at that time point, so that the trailer radar is always kept in a constant temperature state, and the corresponding heating mode is selected based on the changed heat loss temperature data so that the overall temperature of the internal space of the trailer radar can be stabilized again.

[0048] In specific applications, when the temperature in the trailer is managed on the second day, the heating mode of the vehicle heating device 3 can be actively adjusted according to the heat loss replacement time sequence of the previous day and in accordance with different time nodes, so that the temperature fluctuation inside the trailer radar is small, and the internal temperature is almost balanced and stable, which also reduces energy consumption and achieves the purpose of saving electricity.

[0049] Since the ambient temperature inside the trailer is maintained at a balanced and stable normal temperature, the reciprocating movement of the slope radar generates frictional heat, which will cause the slope radar to locally generate high temperatures exceeding normal temperatures, affecting its service life.

[0050] When the radar operation temperature sensor 2 detects that the local temperature generated by the slope radar operation exceeds the set safe operating temperature range, the central processing system 5 determines the heat exchange efficiency between the slope radar and the interior of the trailer according to the time sequence of the local temperature change as follows: The slope radar is placed in a test space without heat exchange space, the local temperature generated by the slope radar is counted, and the local temperature change curve is formed by fitting; The radar operation temperature sensor 2 is used to monitor the working temperature of the slope radar installed in the trailer in real time, and the real-time temperature change of the slope radar under different heating modes of the in-vehicle heating device 3 is counted, and the working temperature change curve of the slope radar under different heating modes is formed by fitting; Based on the difference between the local temperature change curve and the working temperature change curve, the internal heat exchange value between the slope radar and the internal heat transfer space of the trailer under different heating modes is determined.

[0051] Based on the internal heat exchange rating, the cooling time required for the slope radar to actively drop to a safe operating temperature range under different heating modes of the vehicle interior heating device 3 is predicted; The cooling time predicted under different heating modes is compared with the safety tolerance time of the slope radar, and the operation of the local cooling device 4 is regulated according to the comparison results.

[0052] Specifically, when the cooling time exceeds the safe tolerance time of the slope radar, the local cooling device 4 is started, wherein the local cooling device 4 achieves 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.

[0053] When the cooling time is lower than the safety tolerance time of the slope radar, the local cooling device 4 is not started, and the in-vehicle heating device 3 is regulated to operate in a heating mode that matches the cooling time.

[0054] It is further explained that 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 is reduced, the overall temperature of the internal space of the trailer radar is destroyed again. Then, under the influence of the heat loss temperature, the ambient temperature inside the trailer radar will continue to decrease, so that the temperature of the working area of ​​the slope radar will exchange heat with the inside of the trailer to achieve the reduction of the temperature of the slope radar.

[0055] As the overall temperature of the interior space of the trailer radar continues to drop, the temperature of the slope radar working area exchanges heat with the trailer to lower the temperature of the slope radar. There is an internal heat exchange rating between the trailer radar and the slope radar. The time required for the slope radar to drop to a safe operating temperature range is determined based on the internal heat exchange rating. The heating mode of the in-vehicle heating device 3 is selected or the local cooling device 4 is started based on the comparison result of the cooling time and the safety tolerance time of the slope radar.

[0056] The specific advantage is that 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 will be relatively low. After the local temperature of the slope radar is controlled to cool down, if the temperature inside the trailer radar is to be raised to return to a safe ambient temperature range, less electrical energy will be consumed.

[0057] However, since the outdoor temperature in high-altitude cold areas can reach minus 20 degrees Celsius or even lower, when the slope radar is cooled by heat exchange, the temperature inside the trailer radar will inevitably drop rapidly. Therefore, in order to raise the temperature inside the trailer radar to return to a safe ambient temperature range, a high amount of electrical energy is consumed.

[0058] Therefore, the present embodiment preferably first adjusts the heating mode of the in-vehicle heating device 3 to meet the cooling time of the slope radar, and can also reduce energy consumption while meeting the service life and performance of the slope radar.

[0059] In addition, based on the above-mentioned heat exchange type automatic temperature control system of the trailer radar in the high-cold area, the present invention also provides a heat exchange type automatic temperature control method of the trailer radar in the high-cold area, comprising the following steps: Step 100: forming an internal three-dimensional space model of the trailer radar, and determining the heating temperatures per unit time of different heating modes of the in-vehicle heating device in the space based on the internal three-dimensional space model of the trailer radar; Step 200, combining the temperature rise values ​​of the current in-vehicle heating device in different heating modes per unit time and the heat loss temperature formed inside the trailer radar in unit time through internal and external heat exchange, determining the time required for the in-vehicle heating device to heat the trailer radar to a desired temperature value in different heating modes; Step 300: selecting a 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 a desired temperature value, and maintaining a constant temperature in the trailer radar by automatically and instantly 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 in different heating modes of the in-vehicle heating device per unit time, predict the cooling time required for the slope radar to cool down to a safe working temperature range, and when the cooling time exceeds a set threshold, perform fixed-point cooling of the slope radar by heat exchange with the external environment; Step 500: When the slope radar recovers to a temperature less than the set threshold and the overall temperature in the trailer radar is lower than the safe ambient temperature range, repeat steps 200 to 400 to ensure that the overall temperature in the trailer radar and the local temperature generated when the slope radar is working are in a dynamic equilibrium state.

[0060] Through the above-mentioned heat exchange automatic temperature control method, the present invention can ensure that the overall ambient temperature in the trailer and the local temperature of the slope radar working area are maintained in a dynamic equilibrium state, thereby improving the warmth retention of the staff and ensuring the service life of the slope radar. At the same time, it also realizes fully automatic temperature control to ensure that the temperature change range inside the trailer is small, thereby achieving the purpose of energy saving and power saving, and then ensuring the working stability of the slope radar.

[0061] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A heat exchange automatic temperature control system for trailer radar in high-cold areas, characterized in that: include: The trailer temperature sensor (1) is used to obtain the overall temperature of the trailer radar interior space in real time; A radar operation temperature sensor (2) is used to obtain in real time the local temperature generated when the slope radar is working; An in-vehicle heating device (3) for heating the interior of the trailer radar; A local cooling device (4) is installed at the location of the slope radar and is used to perform heat exchange with the location of the slope radar so as to locally cool the slope radar when the local temperature generated when the slope radar is working exceeds the safe working temperature range; The central processing system (5) is respectively connected to the temperature sensor (1) in the trailer, the radar operation temperature sensor (2), the vehicle interior heating device (3) and the local cooling device (4); The central processing system (5) constructs a temperature rise control prediction time series sequence of the in-vehicle temperature rise device (3) in different temperature rise modes, and determines a heat loss time series sequence of the trailer radar by combining the predicted temperature of the temperature rise control prediction time series sequence and the actual measured temperature of the temperature sensor (1) in the trailer; The central processing system (5) automatically selects a heating mode of the in-vehicle heating device (3) in combination with the heat loss timing sequence and the expected temperature control time, so that the trailer radar can be kept within a set constant temperature safety environment temperature range during the expected temperature control time; The central processing system (5) monitors the local temperature generated when the slope radar is working in real time based on the radar operation temperature sensor (2). The central processing system (5) determines the heat exchange efficiency of the slope radar according to the time sequence of the change 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 a set safe operating temperature range in real time.

2. According to claim 1, a heat exchange automatic temperature control system for trailer radar in high-cold areas is characterized in that: The central processing system (5) constructs a temperature rise control prediction time series sequence based on the predicted temperature rise of each temperature rise mode of the vehicle interior temperature rise device (3), determines the heat loss temperature according to the difference between the vehicle interior temperature monitored in real time by the trailer interior temperature sensor (1) and the temperature rise control prediction time series sequence, and constructs a heat loss time series sequence in which the heat loss temperature changes with the vehicle interior temperature; Among them, the specific implementation method of constructing the heat loss time series is: determining a heat transfer space inside the trailer radar according to an internal three-dimensional space model of the trailer radar; Based on the heat transfer space of the trailer radar and the temperature increase control prediction time series of each temperature increase mode of the in-vehicle temperature increase device (3), determining the expected temperature increase of the trailer radar within a unit time; Determining the actual temperature rise of the trailer radar within a unit time according to monitoring data of the temperature sensor (1) in the trailer; The heat loss temperature is determined based on the expected warm-up temperature and the actual warm-up temperature, and a heat loss time series sequence is constructed based on the change of the heat loss temperature over time.

3. The heat exchange automatic temperature control system for trailer radar in high-cold areas according to claim 2 is characterized in that: The specific expression of the heat loss time series is: {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; The expected heating temperature of the vehicle interior heating device (3) in each heating mode; tj is the actual heating temperature monitored by the temperature sensor (1) in the trailer in each heating mode; j is the heating time point of the in-vehicle heating device (3); By fitting the {Gp(1), Gp(2), Gp(3), ...Gp(j)}, the variation curve of the heat loss time series is determined.

4. The heat exchange automatic temperature control system for trailer radar in high-cold areas according to claim 3 is characterized in that: When the heating mode of the in-vehicle heating device (3) is automatically selected in combination with the heat loss time sequence 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 requirement; (Expected temperature control time)-Gp(Expected temperature control time)≥Yu, where: (Expected temperature control time) is the expected temperature rise of each heating mode at the expected temperature control time, Gp (expected temperature control time) is the heat loss temperature of the heat loss time sequence at the expected temperature control time, and Yu is the set constant temperature safety environment temperature; After the temperature inside the trailer radar reaches a constant temperature safety environment temperature, the heating mode of the vehicle interior heating device (3) is actively adjusted so that the overall temperature of the interior space of the trailer radar is stabilized.

5. The heat exchange automatic temperature control system for trailer radar in high-cold areas according to claim 4 is characterized in that: When satisfied When there is more than one heating mode when (expected temperature control time)-Gp(expected temperature control time)≥Yu, a 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 the safe ambient temperature range is initially reached according to the heating mode; After reaching the safe ambient temperature range, the heat loss temperature per unit time when reaching the safe ambient temperature range is determined based on the change curve of the heat loss time series, and the heating mode of the in-vehicle heating device (3) is automatically adjusted 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 automatic temperature control system for trailer radar in high-cold areas according to claim 5 is characterized in that: After the trailer temperature sensor (1) detects that the overall temperature of the interior space of the trailer radar is re-damaged, the temperature of the outside environment after the re-damage and the corresponding time of the day are recorded, and the central processing system (5) updates the heat loss time series sequence, and combines the heat loss time series sequence with the time change of the day to form a heat loss replacement time series of the trailer radar in the high-cold area; The central processing system (5) selects a corresponding heating mode based on the changed heat loss temperature matching, so that the overall temperature of the interior space of the trailer radar can be stabilized again; The central processing system (5) forms a historical trajectory of the heating mode control of the in-vehicle heating device (3) according to the heat loss replacement time sequence, and the central processing system (5) installs the historical trajectory of the heating mode control to actively adjust the heating mode of the in-vehicle heating device (3) in sequence to perform preemptive temperature management on the trailer radar.

7. The heat exchange automatic temperature control system for trailer radar in high-cold areas according to claim 1 is characterized in that: The central processing system (5) determines the heat exchange efficiency of the slope radar according to the time sequence of the local temperature change in the following manner: The slope radar is placed in a test space without a heat exchange space, and local temperatures generated by the slope radar are counted to form a local temperature change curve by fitting; Using a radar operating temperature sensor (2) to monitor the operating temperature of a slope radar installed in the trailer in real time, calculating the real-time temperature change of the slope radar under different heating modes of the in-vehicle heating device (3), and fitting to form an operating temperature change curve of the slope radar under different heating modes; Based on the difference between the local temperature change curve and the working temperature change curve, the internal heat exchange values ​​between the slope radar and the internal heat transfer space of the trailer under different heating modes are determined.

8. The heat exchange automatic temperature control system for trailer radar in high-cold areas according to claim 7 is characterized in that: Predicting, based on the internal heat exchange rating, the cooling time required for the operating temperature of the slope radar to actively drop to a safe operating temperature range under different heating modes of the in-vehicle heating device (3); The cooling time predicted under different heating modes is compared with the safety tolerance time of the slope radar, and the operation of the local cooling device (4) is regulated according to the comparison results.

9. The heat exchange automatic temperature control system for trailer radar in high-cold areas according to claim 8, characterized in that: When the cooling time exceeds the safety tolerance time of the slope radar, the local cooling device (4) is activated, wherein the local cooling device (4) performs a passive heat exchange between the working area of ​​the trailer radar and the cold air outside the trailer, thereby achieving rapid cooling of the slope radar; when the cooling time is less than the safety tolerance time of the slope radar, the local cooling device (4) is not activated, and the in-vehicle heating device (3) is regulated to operate in a heating mode that conforms to the cooling time.

10. A temperature control method for a heat exchange automatic temperature control system of a trailer radar in a high-cold region according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 100: forming an internal three-dimensional space model of the trailer radar, and determining the heating temperatures per unit time of different heating modes of the in-vehicle heating device in the space based on the internal three-dimensional space model of the trailer radar; Step 200, determining the time required for the in-vehicle heating device to heat the trailer radar to a desired temperature value in different heating modes, based on the temperature rise values ​​in different heating modes of the in-vehicle heating device in a unit time and the heat loss temperature in a unit time formed inside the trailer radar through internal and external heat exchange; Step 300: selecting a 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 a desired temperature value, and maintaining a constant temperature in the trailer radar by automatically and instantly 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 cooling temperature of the slope radar in different heating modes of the vehicle heating device per unit time, predict the cooling time required for the slope radar to cool down to a safe working temperature range, and when the cooling time exceeds a set threshold, perform fixed-point cooling of the slope radar by heat exchange with the external environment; Step 500: When the slope radar recovers to a temperature less than a set threshold and the overall temperature in the trailer radar is lower than a safe ambient temperature range, repeat steps 200 to 400 to ensure that the overall temperature in the trailer radar and the local temperature generated when the slope radar is working are in a dynamic equilibrium state.

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