CN-121978154-A - System and method for verifying thermal protection function of low-temperature device

Abstract

The application provides a system and a method for verifying a thermal protection function of a low-temperature device, wherein the system comprises a control device, a heating execution device, a temperature measurement sensing device and an integrated transmission device, wherein the control device is used for executing configurable temperature control logic and generating a heating control instruction, the heating execution device is connected to the control device and used for responding to the heating control instruction to provide controllable heating power for a heating element in the thermal protection device to be tested, the temperature measurement sensing device is connected to the control device and used for collecting multi-point temperature signals in the thermal protection device to be tested and feeding back the multi-point temperature signals to the control device, and the integrated transmission device is used for transmitting power supply and signals among the control device, the heating execution device and the temperature measurement sensing device. The application combines the protection design characteristics of the device to carry out the adaptive design, can meet the temperature control of multiple protection equipment in multiple channels and multiple temperature control modes, provides an effective technical means and engineering equipment for verifying the thermal design correctness of the low-temperature device, and has important engineering value and positive practical significance.

Inventors

• LIU ZEYUAN
• GAO QINGHUA
• LIU XIAONING
• WEI HANGHANG
• WANG YUCHEN
• QIN JIAYONG
• ZHOU YAN
• LI YE

Assignees

• 北京卫星环境工程研究所

Dates

Publication Date

20260505

Application Date

20251231

Claims (10)

1. 1. A cryogenic device thermal protection function verification system, the system comprising: The control device is used for executing the configurable temperature control logic and generating a heating control instruction; The heating execution device is connected to the control device and is used for responding to the heating control instruction and providing controllable heating power for a heating element in the heat protection device to be tested; the temperature measurement sensing device is connected to the control device and is used for collecting multi-point temperature signals inside the thermal protection device to be tested and feeding the multi-point temperature signals back to the control device; And the integrated transmission device is used for transmitting power supply and signals among the control device, the heating execution device and the temperature measuring sensing device.
2. 2. The system of claim 1, wherein the control device comprises a hardware platform constructed based on a programmable logic controller and upper computer software, the upper computer software is used for carrying out temperature control logic configuration on a plurality of independent heating channels and temperature measuring channels, the temperature control logic comprises at least one of independent closed loop control, independent open loop control and bypass tracking modes, and the heating execution device comprises a programmable direct current power supply, a constant voltage bus powered by the programmable direct current power supply and a solid-state power regulating device connected between the constant voltage bus and the heating element.
3. 3. The system according to claim 2, wherein in the heating executing device, a fuse is connected in series in a loop of each heating channel and a hall current sensor for detecting the on-off state of the channel is provided.
4. 4. The system of claim 1, wherein the temperature sensing device comprises a platinum resistance temperature sensor and a Modbus-based multichannel temperature measurement module mounted inside the thermal protection device.
5. 5. The system of claim 4, wherein the integrated transmission device is an integrated cable comprising a plurality of pairs of power supply cores and at least one set of differential communication cores with shielding layers arranged in parallel, the cable being provided with a low temperature resistant jacket.
6. 6. The system of claim 1, wherein the system supports multiple independent heating control channels and multiple independent temperature acquisition channels, the temperature measurement range covers-200 ℃ to +200 ℃, the single channel maximum heating power is not lower than 550W, and the temperature control accuracy is better than +/-1 ℃.
7. 7. The system of claim 1, wherein the output voltage of the programmable DC power supply can be remotely set and adjusted, and the operating parameters can be remotely monitored, and the hardware of the control device, the heating executing device and the temperature measuring sensing device adopts the modular design of standard interfaces.
8. 8. The system of claim 1, wherein the host software is in control communication with the PLC hardware platform via a Profinet bus.
9. 9. A method for verifying a thermal protection function of a cryogenic device, the method comprising: arranging a heating element and a temperature sensor in the thermal protection device to be tested; assigning independent control and acquisition channels to the heating element and the temperature sensor; The upper computer is used for configuring temperature control logic of an independent closed loop, an independent open loop or a bypass tracking mode for at least one heating channel; In a low-temperature environment, performing power control of a corresponding mode on the heating channel based on configured logic and temperature feedback, and performing a bypass tracking mode on at least one channel; and collecting temperature and control data of each channel, and verifying the performance of the heat protection device under multi-mode temperature control.
10. 10. The method according to claim 9, wherein, Distinguishing an active temperature control region from a passive following region according to the temperature control logic configuration; synchronously collecting temperature control data and temperature response data of the two areas; And determining the heat insulation performance parameters of the heat protection device and the heat coupling strength between the areas through the correlation analysis of the data of the two areas.

Description

System and method for verifying thermal protection function of low-temperature device Technical Field The application relates to the technical field of space environment monitoring, in particular to a system and a method for verifying a thermal protection function of a low-temperature device. Background In the field of aircraft ground testing, it is desirable to verify the performance of thermal shields in a low temperature environment. At present, general temperature control equipment or a customization scheme is adopted for verification. In the related art, the general temperature control system is mainly used in normal temperature environment, has limitations in low temperature adaptability, channel number and temperature control mode, and is difficult to flexibly adapt to verification requirements of protection devices with different structures. Therefore, an integrated test system capable of supporting multi-channel and multi-mode independent temperature control in a low-temperature environment and flexibly adapting to the verification requirements of diversified protection devices is lacking. Disclosure of Invention The application aims to provide a system, a device, a medium and electronic equipment for calibrating plasma detection data, which can solve at least one technical problem. The specific scheme is as follows: according to a first aspect of the present application, there is provided a thermal protection function verification system for a cryogenic device, the system comprising: The control device is used for executing the configurable temperature control logic and generating a heating control instruction; The heating execution device is connected to the control device and is used for responding to the heating control instruction and providing controllable heating power for a heating element in the heat protection device to be tested; the temperature measurement sensing device is connected to the control device and is used for collecting multi-point temperature signals inside the thermal protection device to be tested and feeding the multi-point temperature signals back to the control device; And the integrated transmission device is used for transmitting power supply and signals among the control device, the heating execution device and the temperature measuring sensing device. In a possible embodiment, the control device comprises a hardware platform constructed based on a programmable logic controller and upper computer software, wherein the upper computer software is used for carrying out temperature control logic configuration on a plurality of independent heating channels and temperature measuring channels, the temperature control logic comprises at least one of independent closed loop control, independent open loop control and bypass tracking modes, and the heating execution device comprises a program control direct current power supply, a constant voltage bus powered by the program control direct current power supply and a solid-state power regulating device connected between the constant voltage bus and a heating element. In a possible embodiment, in the heating executing device, a fuse is connected in series in a loop of each heating channel, and a hall current sensor for detecting the on-off state of the channel is arranged. In a possible embodiment, the temperature sensing device comprises a platinum resistance temperature sensor and a multichannel temperature measuring module based on a Modbus bus, wherein the multichannel temperature measuring module is installed inside the thermal protection device. In a possible embodiment, the integrated transmission device is an integrated cable, and the cable comprises a plurality of pairs of power supply wire cores and at least one group of differential communication wire cores with shielding layers, wherein the power supply wire cores and the differential communication wire cores are arranged in parallel, and the cable is provided with a low-temperature-resistant sheath. In a possible embodiment, the system supports multiple independent heating control channels and multiple independent temperature acquisition channels, the temperature measurement range is covered by-200 ℃ to +200 ℃, the single-channel maximum heating power is not lower than 550W, and the temperature control precision is better than +/-1 ℃. In a possible embodiment, the output voltage of the programmable direct current power supply can be set and regulated remotely, and the working parameters can be monitored remotely, and the hardware of the control device, the heating executing device and the temperature measuring sensing device adopts the modular design of standard interfaces. In a possible embodiment, the upper computer software is in control communication with the PLC hardware platform via a Profinet bus. According to a second aspect of the present application, there is also provided a method for verifying a thermal protection function of a cryogenic device, the metho