A temperature protection control system and method for a bulletproof vest performance pretreatment test bench

Abstract

The invention discloses a temperature protection control system and method for a body armor performance pretreatment test bench, which relates to the technical field of temperature control systems. The system comprises the following modules: a humidity monitoring module, wherein a plurality of humidity sensors are installed in different areas of a test box, relative humidity of each area of the test box is obtained by the plurality of humidity sensors, a dehumidifier is installed in the test box, a preset threshold value of the test relative humidity is set, and the dehumidifier is controlled to dehumidify the test box according to the relative humidity of each area and the preset threshold value of the test relative humidity; and an air flow circulation module is used to regulate the speed of a drainage fan in the test box, so that the wind speed in areas with high humidity is faster and the wind speed in areas with low humidity is slower, thereby facilitating uniform humidity in the test box, thereby preventing water vapor from freezing at low temperatures in areas with excessive humidity due to uneven humidity distribution, thereby facilitating uniform testing of the surface temperature of the body armor, and thereby facilitating the accuracy of low-temperature test results of the body armor.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature control systems, and in particular to a temperature protection control system and method for a bulletproof vest performance pretreatment test bench. Background Art

[0002] Temperature testing of body armor is a critical step in assessing its performance stability in extreme temperature environments. Testing is typically conducted at high temperatures (e.g., +70°C) and low temperatures (e.g., -40°C) to simulate use in hot or cold environments. During testing, the vest is exposed to these temperatures for a period of time and then subjected to ballistic impact testing to ensure its protective capabilities are unaffected by temperature fluctuations. This testing ensures that the vest effectively protects the wearer in a variety of climates.

[0003] During low-temperature testing of bulletproof vests, the ambient humidity will affect the accuracy of the temperature test results of the bulletproof vests. In particular, during low-temperature testing, the low temperature environment of -40°C will condense the water vapor in the test chamber into ice chips. However, the surface of bulletproof vests is mostly made of cotton or acrylic. Therefore, the surface of the bulletproof vest is easily adsorbed by water vapor and iced during low-temperature testing. During the ice formation process, due to the release of latent heat, the temperature of the bulletproof vest surface and the surrounding area will temporarily rise. If the ice layer persists and hinders heat transfer, the temperature inside the bulletproof vest will be lower than expected, especially when the test chamber is continuously cooled. Since the water vapor ice chips are not evenly attached to the bulletproof vest surface, the actual test temperature of different parts of the bulletproof vest surface is different, which ultimately affects the accuracy of the bulletproof vest temperature test results. To this end, a temperature protection control system and method for a bulletproof vest performance pretreatment test bench are proposed. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides a temperature protection control system and method for a body armor performance pretreatment test bench to solve the above-mentioned problems in the prior art.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a body armor performance pretreatment test bench temperature protection control system, including the following modules:

[0008] The humidity monitoring module installs multiple humidity sensors in different areas of the test chamber to obtain the relative humidity of each area of the test chamber through the multiple humidity sensors. A dehumidifier is installed in the test chamber, and a preset threshold for the test relative humidity is set. The dehumidifier is controlled by the relative humidity of each area and the preset threshold for the test relative humidity to dehumidify the test chamber. After dehumidification is completed, a humidity measurement frequency is set to continuously measure the relative humidity of each area.

[0009] Airflow circulation module: multiple ventilation fans are installed in different areas of the test chamber, and the speed of ventilation fans in different areas is controlled by the relative humidity measurement results of each area;

[0010] The temperature control module installs liquid nitrogen refrigeration pipes and temperature sensors in different areas of the test chamber. The test chamber is cooled through multiple liquid nitrogen refrigeration pipes. The liquid nitrogen flow rate in the liquid nitrogen refrigeration pipes in different areas is adjusted according to the speed of the drainage fans in different areas. The temperature of each area in the test chamber is obtained through multiple temperature sensors. The temperature measurement frequency is set, and the temperature of each area is continuously measured to draw a temperature distribution map.

[0011] The alarm control module determines whether to activate the alarm to remind the management personnel based on the analysis results of the temperature distribution map.

[0012] Preferably, the relative humidity of each area in the test box is obtained by multiple humidity sensors in the humidity monitoring module, specifically:

[0013] Step 1: Get the current temperature, get the humidity at the current temperature through the humidity sensor, and get the saturated water vapor content at the current temperature in the saturated water vapor table using the table lookup method based on the current temperature;

[0014] Step 2: Calculate the relative humidity by dividing the humidity at the current temperature by the saturated water vapor content at the current temperature.

[0015] Preferably, a preset threshold value of the test relative humidity is set in the humidity monitoring module, and a dehumidifier is controlled to dehumidify the test box according to the relative humidity of each area and the preset threshold value of the test relative humidity, specifically:

[0016] Step 1: Set a preset threshold for relative humidity testing, obtain the relative humidity of each area, sum and average the relative humidity of each area to obtain the average relative humidity, compare the average relative humidity with the preset threshold for relative humidity testing, and if the average relative humidity is greater than the preset threshold for relative humidity testing, turn on the dehumidifier to dehumidify the test chamber; if the average relative humidity is less than or equal to the preset threshold for relative humidity testing, proceed to step 2;

[0017] Step 2: Arrange the relative humidity of each area in ascending order, take the median of the relative humidity and mark it as the relative humidity median, and compare the relative humidity median with the preset relative humidity threshold. If the relative humidity median is greater than the preset relative humidity threshold, turn on the dehumidifier to dehumidify the test box. If the relative humidity median is less than or equal to the preset relative humidity threshold, feedback "humidity meets the standard" is reported to the management personnel.

[0018] Preferably, in the air circulation module, the speed of the drainage fans in different areas is regulated by the relative humidity measurement results of each area, specifically:

[0019] Step 1: Obtain the relative humidity of each area, sum and average all relative humidities to obtain the relative humidity mean, subtract the relative humidity of each area from the relative humidity mean to obtain the relative humidity difference, and multiply the relative humidity difference by the product to obtain the wind speed adjustment;

[0020] Step 2: Set the preset threshold value of the drainage fan speed, multiply the wind speed adjustment amount of each area by the preset threshold value of the drainage fan speed to obtain the adjustment speed, and sum the adjustment speed of each area with the preset threshold value of the drainage fan speed to obtain the drainage fan speed of each area.

[0021] Preferably, the liquid nitrogen flow rate in the liquid nitrogen refrigeration pipeline in different areas is adjusted according to the rotation speed of the drainage fans in different areas in the temperature control module, specifically:

[0022] Step 1: Obtain the speed of the drainage fan in each area, set a preset threshold for the drainage fan speed, calculate the wind speed adjustment ratio for each area by dividing the drainage fan speed by the preset threshold, and multiply the wind speed adjustment ratio by the product to obtain the liquid nitrogen flow rate adjustment ratio;

[0023] Step 2: Set a preset threshold value for the liquid nitrogen flow rate, and obtain the liquid nitrogen flow rate in each liquid nitrogen refrigeration pipeline by multiplying the preset threshold value for the liquid nitrogen flow rate by the liquid nitrogen flow rate adjustment ratio.

[0024] Preferably, a temperature distribution diagram is drawn in the temperature control module, specifically:

[0025] Step 1: Obtain the geometric center point in the measurement box, and establish the temperature three-dimensional coordinate system of the X-axis, Y-axis and Z-axis with the geometric center point as the coordinate zero point;

[0026] Step 2: Obtain the position coordinates of each temperature sensor in the measurement box, and mark the position coordinates of each sensor in the temperature three-dimensional coordinate system;

[0027] Step 3: Obtain the temperature measured by each temperature sensor in the measurement box, mark the temperature measured by each temperature sensor on the corresponding position coordinates, use the linear interpolation algorithm to generate temperature data of more coordinate points based on the temperature measured by each temperature sensor, and mark the generated temperature data on the corresponding position coordinates.

[0028] Preferably, the alarm control module is specifically:

[0029] Step 1: Obtain a temperature distribution graph, capture all temperatures in the temperature distribution graph, arrange all temperatures in ascending order, delete the two minimum values and the two maximum values to obtain the temperature after data cleaning;

[0030] Step 2: Arrange the cleaned data temperatures in ascending order, capture the minimum and maximum temperature values, and calculate the temperature range by subtracting the maximum and minimum temperature values.

[0031] Step 3: Set the temperature extreme difference preset threshold, compare the temperature extreme difference with the temperature extreme difference preset threshold, if the temperature extreme difference is greater than the temperature extreme difference preset threshold, mark it as test temperature abnormality, and turn on the alarm to remind the management personnel, if the temperature extreme difference is less than or equal to the temperature extreme difference preset threshold, feedback "temperature meets the standard" to the management personnel.

[0032] A temperature protection control system for a body armor performance pretreatment test bench includes the following steps:

[0033] S1: Install multiple humidity sensors in different areas of the test chamber to obtain the relative humidity of each area of the test chamber through the multiple humidity sensors. Install a dehumidifier in the test chamber, set a preset threshold for the test relative humidity, and control the dehumidifier to dehumidify the test chamber based on the relative humidity of each area and the preset threshold for the test relative humidity. After dehumidification is completed, set a humidity measurement frequency to continuously measure the relative humidity of each area.

[0034] S2: Install multiple ventilation fans in different areas of the test chamber and adjust the speed of the ventilation fans in different areas based on the relative humidity measurement results of each area;

[0035] S3: Liquid nitrogen refrigeration pipes and temperature sensors are installed in different areas of the test chamber. The test chamber is cooled through multiple liquid nitrogen refrigeration pipes. The liquid nitrogen flow rate in the liquid nitrogen refrigeration pipes in different areas is adjusted according to the speed of the drainage fans in different areas. The temperature of each area in the test chamber is obtained through multiple temperature sensors. The temperature measurement frequency is set, and the temperature of each area is continuously measured to draw a temperature distribution map.

[0036] S4: Determine whether to activate an alarm to remind management personnel based on the analysis results of the temperature distribution map.

[0037] (3) Beneficial effects

[0038] The present invention provides a temperature protection control system and method for a body armor performance pretreatment test bench, which has the following beneficial effects:

[0039] (1) In this scheme, the air circulation module is used to control the speed of the ventilation fan in the test box, so that the wind speed in the area with high humidity is faster and the wind speed in the area with low humidity is slower, thereby facilitating the uniformity of humidity in the test box, thereby helping to avoid the situation where water vapor freezes in the area with excessive humidity at low temperatures due to uneven humidity distribution, thereby facilitating the uniform testing of the surface temperature of the bulletproof vest, thereby facilitating the accuracy of the low-temperature test results of the bulletproof vest.

[0040] (2) This solution uses a modular and relatively independent liquid nitrogen flow in the pipeline to absorb heat to cool the test box, which is beneficial to avoid the traditional method of blowing cold air into the test box to bring moisture into the test box and affect the humidity in the test box. It is also easier to control the temperature of different areas in the test box. The flow rate of liquid nitrogen in the pipeline is adjusted by the speed of the drainage fan in each area, so as to adjust the temperature of each area, thereby avoiding the temperature difference in different areas of the test box caused by different wind speeds. A relatively high temperature is used in the high wind speed area and a relatively low temperature is used in the low wind speed area, so as to overcome the influence of different wind speeds on the surface temperature of the bulletproof vest and quickly achieve temperature uniformity in the test box. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic diagram of the module structure of a temperature protection control system for a body armor performance pretreatment test bench according to the present invention;

[0042] Figure 2 This is a flow chart of a temperature protection control method for a body armor performance pretreatment test bench according to the present invention;

[0043] Figure 3 The figure is a schematic diagram of the logical structure of a temperature protection control system for a body armor performance pretreatment test bench according to the present invention. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0045] See also Figure 1-Figure 3 The present invention provides a temperature protection control system for a body armor performance pretreatment test bench, comprising the following modules:

[0046] The humidity monitoring module installs multiple humidity sensors in different areas of the test chamber to obtain the relative humidity of each area of the test chamber through the multiple humidity sensors. A dehumidifier is installed in the test chamber, and a preset threshold for the test relative humidity is set. The dehumidifier is controlled by the relative humidity of each area and the preset threshold for the test relative humidity to dehumidify the test chamber. After dehumidification is completed, a humidity measurement frequency is set to continuously measure the relative humidity of each area.

[0047] Airflow circulation module, which installs multiple ventilation fans in different areas of the test chamber and adjusts the speed of ventilation fans in different areas based on the relative humidity measurement results of each area;

[0048] The temperature control module installs liquid nitrogen refrigeration pipes and temperature sensors in different areas of the test chamber. The test chamber is cooled through multiple liquid nitrogen refrigeration pipes. The liquid nitrogen flow rate in the liquid nitrogen refrigeration pipes in different areas is adjusted according to the speed of the drainage fans in different areas. The temperature of each area in the test chamber is obtained through multiple temperature sensors. The temperature measurement frequency is set, and the temperature of each area is continuously measured to draw a temperature distribution map.

[0049] The alarm control module determines whether to activate the alarm to remind the management personnel based on the analysis results of the temperature distribution map.

[0050] In this embodiment, in the humidity testing module, multiple humidity sensors are installed in the test box to monitor the humidity in different areas of the test box, thereby facilitating the understanding of the humidity distribution in the test box, and then facilitating the adjustment of the humidity distribution in the test box by the air circulation module, thereby facilitating the avoidance of uneven temperature testing of the bulletproof vest due to uneven humidity distribution. The dehumidifier is controlled by the humidity in the test box to dehumidify the test box, thereby facilitating the avoidance of excessive humidity in the test box, which causes a large amount of water vapor to freeze and adhere to the surface of the bulletproof vest during the low-temperature test of the bulletproof vest, thereby facilitating the uniform testing of the surface temperature of the bulletproof vest and facilitating the accuracy of the low-temperature test results. By continuously testing the humidity in each area, it is convenient to grasp the humidity in the test box after the air circulation module adjusts the humidity distribution.

[0051] The air circulation module regulates the speed of the ventilation fan in the test chamber, so that the wind speed is faster in areas with high humidity and slower in areas with low humidity. This helps to achieve uniform humidity in the test chamber, thereby preventing uneven humidity distribution from causing water vapor to freeze in low temperatures. This helps to uniformly test the surface temperature of the body armor, thereby facilitating the accuracy of the low-temperature test results of the body armor.

[0052] In the temperature control module, a modular relatively independent liquid nitrogen is used to flow in the pipeline to absorb heat and cool the test box, which is beneficial to avoid the traditional method of blowing cold air into the test box to bring moisture into the test box and affect the humidity in the test box. It is also more convenient to control the temperature of different areas in the test box. The flow rate of liquid nitrogen in the pipeline is adjusted by the speed of the drainage fan in each area, so as to adjust the temperature of each area, thereby facilitating the avoidance of different temperatures in different areas of the test box caused by different wind speeds. A relatively high temperature is used in the high wind speed area and a relatively low temperature is used in the low wind speed area, so as to overcome the influence of different wind speeds on the surface temperature of the bulletproof vest and quickly achieve temperature uniformity in the test box. The temperature of each area is monitored by a temperature sensor and a temperature distribution diagram is drawn, so that the management personnel can understand the temperature distribution in the test box.

[0053] The alarm control module analyzes the temperature distribution diagram, so that when the temperature distribution is uneven, the alarm is activated to remind the management personnel to adjust the temperature. This helps to prevent the management personnel from completing the low-temperature test of the bulletproof vest without knowing it, and thus facilitates the accuracy of the test results.

[0054] In the humidity monitoring module, multiple humidity sensors are used to obtain the relative humidity of each area in the test chamber, specifically:

[0055] Step 1: Get the current temperature, get the humidity at the current temperature through the humidity sensor, and get the saturated water vapor content at the current temperature in the saturated water vapor table using the table lookup method based on the current temperature;

[0056] Step 2: Calculate the relative humidity by dividing the humidity at the current temperature by the saturated water vapor content at the current temperature.

[0057] In this embodiment, the current humidity obtained by the humidity sensor is the actual water vapor content at the current temperature, and the saturated water vapor content at the current temperature is obtained by the table lookup method to calculate the relative humidity. It is worth mentioning that the saturated water vapor tables are all public knowledge in the field and will not be elaborated on here.

[0058] Set the test relative humidity preset threshold in the humidity monitoring module, and control the dehumidifier to dehumidify the test box according to the relative humidity of each area and the test relative humidity preset threshold. Specifically:

[0059] Step 1: Set a preset threshold for relative humidity testing, obtain the relative humidity of each area, sum and average the relative humidity of each area to obtain the average relative humidity, compare the average relative humidity with the preset threshold for relative humidity testing, and if the average relative humidity is greater than the preset threshold for relative humidity testing, turn on the dehumidifier to dehumidify the test chamber; if the average relative humidity is less than or equal to the preset threshold for relative humidity testing, proceed to step 2;

[0060] Step 2: Arrange the relative humidity of each area in ascending order, take the median of the relative humidity and mark it as the relative humidity median, and compare the relative humidity median with the preset relative humidity threshold. If the relative humidity median is greater than the preset relative humidity threshold, turn on the dehumidifier to dehumidify the test box. If the relative humidity median is less than or equal to the preset relative humidity threshold, feedback "humidity meets the standard" is reported to the management personnel.

[0061] In this embodiment, the overall humidity condition in the test box is determined by the humidity condition of each area, and then whether a dehumidifier is needed for dehumidification is determined based on the overall humidity analysis. This helps to avoid excessive humidity during the test causing low-temperature freezing and affecting the accuracy of the test results.

[0062] In the air circulation module, the speed of the ventilation fans in different areas is controlled by the relative humidity measurement results of each area. Specifically:

[0063] Step 1: Obtain the relative humidity of each area, sum and average all relative humidities to obtain the relative humidity mean, subtract the relative humidity of each area from the relative humidity mean to obtain the relative humidity difference, and multiply the relative humidity difference by the product to obtain the wind speed adjustment;

[0064] Step 2: Set the preset threshold value of the drainage fan speed, multiply the wind speed adjustment amount of each area by the preset threshold value of the drainage fan speed to obtain the adjustment speed, and sum the adjustment speed of each area with the preset threshold value of the drainage fan speed to obtain the drainage fan speed of each area.

[0065] In this embodiment, the rotation speed of the drainage fan is adjusted according to the humidity distribution, so as to facilitate the airflow from the high humidity area to the low humidity area, thereby facilitating the uniform distribution of humidity in the test box, and thus helping to prevent the high humidity area from freezing at low temperatures and affecting the accuracy of the test results. It is worth mentioning that the value of the preset threshold in this scheme can be obtained through the weight analysis method, which will not be elaborated here.

[0066] In the temperature control module, the liquid nitrogen flow rate in the liquid nitrogen refrigeration pipeline in different areas is adjusted according to the speed of the drainage fans in different areas. Specifically:

[0067] Step 1: Obtain the speed of the drainage fan in each area, set a preset threshold for the drainage fan speed, calculate the wind speed adjustment ratio for each area by dividing the drainage fan speed by the preset threshold, and multiply the wind speed adjustment ratio by the product to obtain the liquid nitrogen flow rate adjustment ratio;

[0068] Step 2: Set a preset threshold value for the liquid nitrogen flow rate, and obtain the liquid nitrogen flow rate in each liquid nitrogen refrigeration pipeline by multiplying the preset threshold value for the liquid nitrogen flow rate by the liquid nitrogen flow rate adjustment ratio.

[0069] In this embodiment, the flow rate of liquid nitrogen is regulated by adjusting the speed of the drainage fan, thereby preventing the influence of wind speed on temperature. This facilitates rapid and uniform temperature distribution within the test chamber, avoids uneven temperature distribution within the test chamber caused by applying the same temperature to areas with different wind speeds, and ensures that the actual temperature across the surface of the body armor is uniform.

[0070] Draw the temperature distribution diagram in the temperature control module, specifically:

[0071] Step 1: Obtain the geometric center point in the measurement box, and establish the temperature three-dimensional coordinate system of the X-axis, Y-axis and Z-axis with the geometric center point as the coordinate zero point;

[0072] Step 2: Obtain the position coordinates of each temperature sensor in the measurement box, and mark the position coordinates of each sensor in the temperature three-dimensional coordinate system;

[0073] Step 3: Obtain the temperature measured by each temperature sensor in the measurement box, mark the temperature measured by each temperature sensor on the corresponding position coordinates, use the linear interpolation algorithm to generate temperature data of more coordinate points based on the temperature measured by each temperature sensor, and mark the generated temperature data on the corresponding position coordinates.

[0074] In this embodiment, a temperature distribution graph is drawn to facilitate management personnel to more intuitively understand the temperature distribution in the test box. The temperature data of more coordinate points are generated by a linear interpolation algorithm, so that the data of the temperature distribution graph is smoother and more intuitive.

[0075] Alarm control module, specifically:

[0076] Step 1: Obtain a temperature distribution graph, capture all temperatures in the temperature distribution graph, arrange all temperatures in ascending order, delete the two minimum values and the two maximum values to obtain the temperature after data cleaning;

[0077] Step 2: Arrange the cleaned data temperatures in ascending order, capture the minimum and maximum temperature values, and calculate the temperature range by subtracting the maximum and minimum temperature values.

[0078] Step 3: Set the temperature extreme difference preset threshold, compare the temperature extreme difference with the temperature extreme difference preset threshold, if the temperature extreme difference is greater than the temperature extreme difference preset threshold, mark it as test temperature abnormality, and turn on the alarm to remind the management personnel, if the temperature extreme difference is less than or equal to the temperature extreme difference preset threshold, feedback "temperature meets the standard" to the management personnel.

[0079] In this embodiment, by analyzing the extreme differences in the temperature data within the temperature distribution diagram, it is determined whether the temperature within the test chamber is uniform and meets the standard, thereby facilitating the management personnel to further adjust the flow rate and flow rate of the liquid nitrogen to change the temperature. This helps prevent the management personnel from completing the low-temperature test of the body armor without knowing it, thereby facilitating the accuracy of the test results.

[0080] See also Figure 1-Figure 3 The present invention provides a temperature protection control system for a body armor performance pretreatment test bench, comprising the following steps:

[0081] S1: Install multiple humidity sensors in different areas of the test chamber to obtain the relative humidity of each area of the test chamber through the multiple humidity sensors. Install a dehumidifier in the test chamber, set a preset threshold for the test relative humidity, and control the dehumidifier to dehumidify the test chamber based on the relative humidity of each area and the preset threshold for the test relative humidity. After dehumidification is completed, set a humidity measurement frequency to continuously measure the relative humidity of each area.

[0082] S2: Install multiple ventilation fans in different areas of the test chamber and adjust the speed of the ventilation fans in different areas based on the relative humidity measurement results of each area;

[0083] S3: Liquid nitrogen refrigeration pipes and temperature sensors are installed in different areas of the test chamber. The test chamber is cooled through multiple liquid nitrogen refrigeration pipes. The liquid nitrogen flow rate in the liquid nitrogen refrigeration pipes in different areas is adjusted according to the speed of the drainage fans in different areas. The temperature of each area in the test chamber is obtained through multiple temperature sensors. The temperature measurement frequency is set, and the temperature of each area is continuously measured to draw a temperature distribution map.

[0084] S4: Determine whether to activate an alarm to remind management personnel based on the analysis results of the temperature distribution map.

[0085] The above embodiments can be implemented in whole or in part by software, hardware, firmware, or any other combination thereof. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. Those skilled in the art will appreciate that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution.

[0086] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0087] The above is only a specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed in this application, which should be covered by the scope of protection of the present application.

Claims

1. A temperature protection control system for a body armor performance pretreatment test bench, characterized in that: Includes the following modules: The humidity monitoring module installs multiple humidity sensors in different areas of the test chamber to obtain the relative humidity of each area of the test chamber through the multiple humidity sensors. A dehumidifier is installed in the test chamber, and a preset threshold for the test relative humidity is set. The dehumidifier is controlled by the relative humidity of each area and the preset threshold for the test relative humidity to dehumidify the test chamber. After dehumidification is completed, a humidity measurement frequency is set to continuously measure the relative humidity of each area. Airflow circulation module: multiple ventilation fans are installed in different areas of the test chamber, and the speed of ventilation fans in different areas is controlled by the relative humidity measurement results of each area; The temperature control module installs liquid nitrogen refrigeration pipes and temperature sensors in different areas of the test chamber. The test chamber is cooled through multiple liquid nitrogen refrigeration pipes. The liquid nitrogen flow rate in the liquid nitrogen refrigeration pipes in different areas is adjusted according to the speed of the drainage fans in different areas. The temperature of each area in the test chamber is obtained through multiple temperature sensors. The temperature measurement frequency is set, and the temperature of each area is continuously measured to draw a temperature distribution map. The alarm control module determines whether to activate the alarm to remind the management personnel based on the analysis results of the temperature distribution map; Set the test relative humidity preset threshold in the humidity monitoring module, and control the dehumidifier to dehumidify the test box according to the relative humidity of each area and the test relative humidity preset threshold. Specifically: Step 1: Set a preset threshold for relative humidity testing, obtain the relative humidity of each area, sum and average the relative humidity of each area to obtain the average relative humidity, compare the average relative humidity with the preset threshold for relative humidity testing, and if the average relative humidity is greater than the preset threshold for relative humidity testing, turn on the dehumidifier to dehumidify the test chamber; if the average relative humidity is less than or equal to the preset threshold for relative humidity testing, proceed to step 2; Step 2: Arrange the relative humidity of each area in ascending order, take the median relative humidity and mark it as the relative humidity median, and compare the relative humidity median with the preset relative humidity threshold. If the relative humidity median is greater than the preset relative humidity threshold, turn on the dehumidifier to dehumidify the test chamber. If the relative humidity median is less than or equal to the preset relative humidity threshold, feedback "humidity meets the standard" is reported to the management staff.

2. The temperature protection control system for a body armor performance pretreatment test bench according to claim 1, characterized in that: In the humidity monitoring module, multiple humidity sensors are used to obtain the relative humidity of each area in the test chamber, specifically: Step 1: Get the current temperature, get the humidity at the current temperature through the humidity sensor, and get the saturated water vapor content at the current temperature in the saturated water vapor table using the table lookup method based on the current temperature; Step 2: Calculate the relative humidity by dividing the humidity at the current temperature by the saturated water vapor content at the current temperature.

3. The temperature protection control system for a body armor performance pretreatment test bench according to claim 1, characterized in that: In the air circulation module, the speed of the ventilation fans in different areas is controlled by the relative humidity measurement results of each area. Specifically: Step 1: Obtain the relative humidity of each area, sum and average all relative humidities to obtain the relative humidity mean, subtract the relative humidity of each area from the relative humidity mean to obtain the relative humidity difference, and multiply the relative humidity difference by the product to obtain the wind speed adjustment; Step 2: Set the preset threshold value of the drainage fan speed, multiply the wind speed adjustment amount of each area by the preset threshold value of the drainage fan speed to obtain the adjustment speed, and sum the adjustment speed of each area with the preset threshold value of the drainage fan speed to obtain the drainage fan speed of each area.

4. The temperature protection control system for a body armor performance pretreatment test bench according to claim 1, characterized in that: In the temperature control module, the liquid nitrogen flow rate in the liquid nitrogen refrigeration pipeline in different areas is adjusted according to the speed of the drainage fans in different areas. Specifically: Step 1: Obtain the speed of the drainage fan in each area, set a preset threshold for the drainage fan speed, calculate the wind speed adjustment ratio for each area by dividing the drainage fan speed by the preset threshold, and multiply the wind speed adjustment ratio by the product to obtain the liquid nitrogen flow rate adjustment ratio; Step 2: Set a preset threshold value for the liquid nitrogen flow rate, and obtain the liquid nitrogen flow rate in each liquid nitrogen refrigeration pipeline by multiplying the preset threshold value for the liquid nitrogen flow rate by the liquid nitrogen flow rate adjustment ratio.

5. The temperature protection control system for a body armor performance pretreatment test bench according to claim 1, characterized in that: Draw the temperature distribution diagram in the temperature control module, specifically: Step 1: Obtain the geometric center point in the measurement box, and establish the temperature three-dimensional coordinate system of the X-axis, Y-axis and Z-axis with the geometric center point as the coordinate zero point; Step 2: Obtain the position coordinates of each temperature sensor in the measurement box, and mark the position coordinates of each sensor in the temperature three-dimensional coordinate system; Step 3: Obtain the temperature measured by each temperature sensor in the measurement box, mark the temperature measured by each temperature sensor on the corresponding position coordinates, use the linear interpolation algorithm to generate temperature data of more coordinate points based on the temperature measured by each temperature sensor, and mark the generated temperature data on the corresponding position coordinates.

6. The temperature protection control system for a body armor performance pretreatment test bench according to claim 1, characterized in that: Alarm control module, specifically: Step 1: Obtain a temperature distribution graph, capture all temperatures in the temperature distribution graph, arrange all temperatures in ascending order, delete the two minimum values and the two maximum values to obtain the temperature after data cleaning; Step 2: Arrange the temperatures in ascending order after cleaning the data, capture the minimum and maximum temperature values, and calculate the temperature range by subtracting the maximum and minimum temperature values; Step 3: Set a preset temperature range threshold and compare the temperature range with the preset temperature range threshold. If the temperature range is greater than the preset temperature range threshold, mark it as an abnormal test temperature and activate an alarm to alert the management personnel. If the temperature range is less than or equal to the preset temperature range threshold, feedback "temperature meets standard" is provided to the management personnel.

7. A method for controlling temperature protection of a body armor performance pretreatment test bench, applied to a body armor performance pretreatment test bench temperature protection control system according to any one of claims 1 to 6, characterized in that: The steps include: S1: Install multiple humidity sensors in different areas of the test chamber to obtain the relative humidity of each area of the test chamber through the multiple humidity sensors. Install a dehumidifier in the test chamber, set a preset threshold for the test relative humidity, and control the dehumidifier to dehumidify the test chamber based on the relative humidity of each area and the preset threshold for the test relative humidity. After dehumidification is completed, set a humidity measurement frequency to continuously measure the relative humidity of each area. S2: Install multiple ventilation fans in different areas of the test chamber and adjust the speed of the ventilation fans in different areas based on the relative humidity measurement results of each area; S3: Liquid nitrogen refrigeration pipes and temperature sensors are installed in different areas of the test chamber. The test chamber is cooled through multiple liquid nitrogen refrigeration pipes. The liquid nitrogen flow rate in the liquid nitrogen refrigeration pipes in different areas is adjusted according to the speed of the drainage fans in different areas. The temperature of each area in the test chamber is obtained through multiple temperature sensors. The temperature measurement frequency is set, and the temperature of each area is continuously measured to draw a temperature distribution map. S4: Determine whether to activate an alarm to remind management personnel based on the analysis results of the temperature distribution map.

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