A load device with the function of being used both on the ground and in the air

Abstract

The present invention discloses a load device with air-to-ground dual-use capabilities, comprising: a power supply input interface, a power conversion module, a data acquisition module, a data calculation and control module, and a power module; the power supply input interface is used to connect to the power output port of the aircraft's electrical subsystem; the power conversion module is connected to the power supply input interface; the data acquisition module is connected to the power conversion module and the power module respectively; the data calculation and control module is connected to the power conversion module, the data acquisition module, the computer display and control interface, the removable external touch screen control module, and the power module respectively; the power module includes multiple power devices, is connected to the power supply input interface and to the data calculation and control module via the data acquisition module, and receives voltage control signals. The various functional modules of the present invention adopt a modular design, and if a single module is damaged, it can be replaced without affecting other functional modules.

Description

Technical Field

[0001] The present invention belongs to the technical field of aircraft, and more particularly, relates to a load device with air-ground dual-use functions. Background Art

[0002] The electrical subsystem is a critical component of aircraft flight safety, and its operational reliability is crucial. To assess the reliability of an aircraft's electrical system under varying flight conditions, a device matching the aircraft is required as a load to test the subsystem's reliability and operational envelope under varying flight and load power conditions.

[0003] Therefore, it is expected to invent a load device that can complete the reliability test of the electrical subsystem under different flight conditions and different load power conditions. Summary of the Invention

[0004] The purpose of the present invention is to provide a load device to complete the reliability test of the electrical subsystem under different flight conditions and different load power conditions.

[0005] In order to achieve the above-mentioned object, the present invention provides a load device with air-ground dual-use function, comprising: a power supply input interface, a power conversion module, a data acquisition module, a data solution and control module and a power module;

[0006] The power supply input interface is used to connect to the power output port of the electrical subsystem of the aircraft to input 28V electrical energy to the load device;

[0007] The power conversion module is connected to the power supply input interface, and is used to receive the input 28V power and convert the 28V power into 5V power;

[0008] The data acquisition module is connected to the power conversion module and the power module respectively, and is used to obtain the 5V electric energy to collect the output voltage and current of the power conversion module, and convert the output voltage and current into a first preset voltage, and collect the power voltage and current of the power module, and convert the power voltage and current into a second preset voltage;

[0009] The data calculation and control module is respectively connected to the power conversion module, the data acquisition module, the computer display and control interface, the removable external touch screen control module and the power module, and is used to obtain the 5V electric energy to receive the first preset voltage and the second preset voltage transmitted by the data acquisition module, and receive the load power-on instruction through the computer display and control interface or the removable external touch screen control module, and obtain a voltage control signal based on the first preset voltage, the second preset voltage and the load power-on instruction, and transmit the voltage control signal to the power module, wherein the voltage control signal is used to adjust the power load size, time and steady-state power size of the power module;

[0010] The power module includes a plurality of power devices, is connected to the power supply input interface through the data acquisition module, and is connected to the data calculation and control module. The power module receives the voltage control signal.

[0011] Optionally, it also includes:

[0012] The program download and reserved communication interface is connected to the data calculation and control module and is used to download power-on curves of different loads into the data calculation and control module.

[0013] Optionally, the removable external touch screen control module is connected to the power conversion module, and is used to obtain 12V electric energy converted by the power conversion module to obtain the load power-on instruction and display the working status of the load device.

[0014] Optionally, it also includes:

[0015] Multiple detachable external cooling fan modules are connected in parallel and are respectively connected to the power conversion module to obtain 24V electric energy converted by the power conversion module.

[0016] Optionally, the power conversion module includes a first power module, a second power module and a third power module, the first power module is used to convert the 28V power into the 5V power, the second power module is used to convert the 28V power into 24V power, and the third power module is used to convert the 28V power into 12V power.

[0017] Optionally, there are multiple power modules, the multiple power modules are connected in parallel, and the multiple power modules are respectively connected to the data acquisition module and the data calculation and control module.

[0018] Optionally, the power supply input interface is connected to the data acquisition module and the power conversion module respectively through an emergency stop switch.

[0019] Optionally, the computer display and control interface is connected to the control end of the aircraft, and is used to receive the load power-on instruction transmitted through the control end of the aircraft, and transmit the working status of the load device to the control end of the aircraft.

[0020] Optionally, obtaining a voltage control signal based on the first preset voltage, the second preset voltage, and the load power-on instruction, and transmitting the voltage control signal to the power module includes:

[0021] Calculating a voltage value and a current value of the first power module based on the first preset voltage and the second preset voltage;

[0022] Calculating the voltage and current values of the 28V electric energy consumed by the power module based on the voltage and current values of the first power module;

[0023] Calculating the total power consumed by the power module based on the voltage value and current value of the 28V electric energy consumed by the power module;

[0024] The voltage control signal is calculated based on the total power consumed by the power module and the load power-on instruction, and the voltage control signal is transmitted to the power module.

[0025] Optionally, the voltage range of the first preset voltage and the second preset voltage is 0V to 3V.

[0026] The beneficial effects of the present invention are:

[0027] The load device of the present invention includes a power supply input interface, a power supply conversion module, a data acquisition module, a data solution and control module and a power module. The power supply input interface is used to connect to the power output port of the electrical subsystem of the aircraft. The power supply conversion module is connected to the power supply input interface. The data acquisition module is respectively connected to the power supply conversion module and the power module. The data solution and control module is respectively connected to the power supply conversion module, the data acquisition module, the computer display and control interface, the removable external touch screen control module and the power module. The power module includes multiple power devices, which are connected to the power supply input interface through the data acquisition module and to the data solution and control module. The power module receives a voltage control signal. The various functional modules of the load device of the present invention adopt a modular design. Each functional module is independent of each other. After a single module is damaged, it can be replaced without affecting other functional modules. Therefore, the load device of the present invention can complete the reliability test of the electrical subsystem under different flight conditions and different load power conditions.

[0028] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present invention.

[0030] Figure 1 A schematic structural diagram of a load device with air-ground dual-purpose function according to an embodiment of the present invention is shown.

[0031] Description of reference numerals:

[0032] 1. Power input interface; 2. Emergency stop switch; 3. Power conversion module; 4. Data acquisition module; 5. Data calculation and control module; 6. Power module; 7. Removable external cooling fan module; 8. Removable external touch screen control module; 9. Computer display and control interface; 10. Program download and reserved communication interface. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. Instead, these embodiments are provided to make the present invention more thorough and complete and to fully convey the scope of the present invention to those skilled in the art.

[0034] According to the present invention, a load device with air-ground dual-use function includes: a power supply input interface, a power conversion module, a data acquisition module, a data solution and control module and a power module;

[0035] The power input interface is used to connect to the power output port of the aircraft's electrical subsystem to input 28V power to the load device;

[0036] The power conversion module is connected to the power supply input interface, and is used to receive the input 28V power and convert the 28V power into 5V power;

[0037] The data acquisition module is connected to the power conversion module and the power module respectively, and is used to obtain 5V electric energy to collect the output voltage and current of the power conversion module, and convert the output voltage and current into a first preset voltage, and collect the power voltage and current of the power module, and convert the power voltage and current into a second preset voltage;

[0038] The data calculation and control module is respectively connected to the power conversion module, the data acquisition module, the computer display and control interface, the removable external touch screen control module and the power module, and is used to obtain 5V electric energy to receive the first preset voltage and the second preset voltage transmitted by the data acquisition module, and receive the load power-on instruction through the computer display and control interface or the removable external touch screen control module, and obtain a voltage control signal based on the first preset voltage, the second preset voltage and the load power-on instruction, and transmit the voltage control signal to the power module, wherein the voltage control signal is used to adjust the power load size, time and steady-state power size of the power module;

[0039] The power module includes multiple power devices, which are connected to the power supply input interface through the data acquisition module and to the data calculation and control module. The power module receives a voltage control signal.

[0040] Specifically, the load device of the present invention includes a power supply input interface, a power supply conversion module, a data acquisition module, a data solution and control module and a power module. The power supply input interface is used to connect to the power output port of the electrical subsystem of the aircraft. The power supply conversion module is connected to the power supply input interface. The data acquisition module is respectively connected to the power supply conversion module and the power module. The data solution and control module is respectively connected to the power supply conversion module, the data acquisition module, the computer display and control interface, the removable external touch screen control module and the power module. The power module includes multiple power devices, which are connected to the power supply input interface through the data acquisition module and to the data solution and control module. The power module receives a voltage control signal. The various functional modules of the load device of the present invention adopt a modular design. Each functional module is independent of each other. After a single module is damaged, it can be replaced without affecting other functional modules. Therefore, the load device of the present invention can complete the reliability test of the electrical subsystem under different flight conditions and different load power conditions.

[0041] Furthermore, the power conversion module has a supply voltage range of 9 to 36 VDC and a rated operating voltage of +28 VDC. It can convert the input 28 V electrical energy into +24 VDC, +12 VDC and +5 VDC electrical energy with sufficient power. The +24 VDC electrical energy provides power for the cooling fan, the +12 VDC electrical energy provides power for the removable external touch screen control module, and the +5 VDC electrical energy provides power for the data processing and control module.

[0042] Furthermore, the power module design inside the load device has a good heat dissipation structure, which can effectively dissipate heat by relying on external drainage when flying in the air.

[0043] Furthermore, the detachable external touch screen control module is a detachable unit with an operating voltage of 12VDC. It uses an isolated RS422 communication interface to communicate with the data solution and control module. It is used for setting the working mode and working parameters in the ground working mode and displaying the working status of the current load.

[0044] In one example, the load device further comprises:

[0045] The program download and reserved communication interface are connected to the data calculation and control module and are used to download power-on curves of different loads into the data calculation and control module.

[0046] Specifically, the load device also includes a program download and reserved communication interface, through which the control program of the load device can be upgraded online, the load curve can be set and selected, and the steady-state power can be set, and the status monitoring and reporting of the load device can be realized.

[0047] Furthermore, the data solution and control module serves as the control core of the device. It can receive program codes sent by the program download and communication reservation module to update the power-on curves and control programs of different loads; it receives control instructions sent by the computer display and control interface or the removable external touch screen control module and solves them, and accordingly completes the selection of the power-on curve and the control of the steady-state power size; it transmits data to the host computer connected to the computer display and control interface or the removable external touch screen control module through the RS422 serial port for information interaction; it provides additional wired or wireless information interaction channels for other host computers through the reserved RS422 and CAN buses.

[0048] In one example, the removable external touch screen control module is connected to the power conversion module to obtain 12V electric energy converted by the power conversion module to obtain a load power-on instruction and display the working status of the load device.

[0049] Specifically, in actual applications, the removable external touch screen control module in the load device can be installed or removed according to the specific usage of the load device.

[0050] In one example, the load device further comprises:

[0051] Multiple detachable external cooling fan modules are connected in parallel and are respectively connected to the power conversion module to obtain 24V electric energy converted by the power conversion module.

[0052] Specifically, the load device also includes multiple detachable external cooling fan modules, which are connected in parallel. The data calculation and control module collects the collected information transmitted by the data acquisition module and completes the steady-state power control closed loop according to the size of the steady-state power in the control instruction. It can collect temperature information feedback from the power module and complete the control of the detachable external cooling fan modules accordingly. In actual applications, the number of detachable external cooling fan modules to be installed can be selected according to actual needs.

[0053] Furthermore, multiple detachable external cooling fan modules are detachable units. The operating voltage of each detachable external cooling fan module is 24VDC. It only works in ground working mode and needs to be removed when flying in the air; the data calculation and control module can collect the temperature parameters feedback from the power module and control the working state of the cooling fan module accordingly; the heat dissipation capacity of the cooling fan module is determined according to the number of power modules and the actual maximum power usage of the load.

[0054] In one example, the power conversion module includes a first power module, a second power module and a third power module, the first power module is used to convert 28V power into 5V power, the second power module is used to convert 28V power into 24V power, and the third power module is used to convert 28V power into 12V power.

[0055] In one example, there are multiple power modules, the multiple power modules are connected in parallel, and the multiple power modules are respectively connected to the data acquisition module and the data calculation and control module.

[0056] Specifically, there are multiple power modules, and the multiple power modules are independent of each other, so that the power of the load device can be expanded.

[0057] Furthermore, the rated power of a single power module is 1kW. Each power module is designed with multiple MOS tubes in parallel. A voltage control signal is used to control the MOS tubes in each power module to operate in the linear region and convert electrical energy into thermal energy. At the same time, the power module has a good heat dissipation structure. When working in flight, it can be cooled by external drainage; when working on the ground, it can be cooled by multiple detachable external cooling fan modules. The power module contains a PT1000 sensor to measure the operating temperature of the power module.

[0058] In one example, the power supply input interface is connected to the data acquisition module and the power conversion module respectively through an emergency stop switch.

[0059] Specifically, the load device contains an emergency stop switch, which can provide an emergency stop function after the load device loses control to protect the safety of the load level above.

[0060] In one example, the computer display and control interface is connected to the control end of the aircraft, and is used to receive a load power-on instruction transmitted through the control end of the aircraft, and transmit the working status of the load device to the control end of the aircraft.

[0061] In one example, obtaining a voltage control signal based on a first preset voltage, a second preset voltage, and a load power-on instruction, and transmitting the voltage control signal to the power module includes:

[0062] Calculating a voltage value and a current value of the first power module based on the first preset voltage and the second preset voltage;

[0063] Calculate the voltage and current values of the power module consuming 28V electrical energy based on the voltage and current values of the first power module;

[0064] Calculate the total power consumed by the power module based on the voltage and current values of the power module consuming 28V electricity.

[0065] Based on the total power consumed by the power module and the load power-on instruction, a voltage control signal is calculated and transmitted to the power module.

[0066] In one example, the voltage range of the first preset voltage and the second preset voltage is 0V to 3V.

[0067] Specifically, the data acquisition module can convert the collected voltage and current signals into 0-3V voltage signals and transmit them to the data acquisition and control module; and the data acquisition module can be adaptively configured according to the actual consumed load power and parameter changes of the power conversion module.

[0068] In one example, the load device further includes: a wireless communication module;

[0069] The data calculation and control module is connected to the host computer through the wireless communication module to realize mutual communication between the host computer and the load device.

[0070] Specifically, the data solution and control module is reserved with an RS422 interface and a CAN bus interface, which are used to connect to a wireless communication module to realize wireless communication between the host computer and the load device. The wireless communication module is preferably a WIFI module and a Zigbee module.

[0071] Example 1

[0072] like Figure 1 As shown, a load device with air-ground dual-use function includes: a power supply input interface, a power conversion module, a data acquisition module, a data solution and control module and a power module;

[0073] The power input interface is used to connect to the power output port of the aircraft's electrical subsystem to input 28V power to the load device;

[0074] The power conversion module is connected to the power supply input interface, and is used to receive the input 28V power and convert the 28V power into 5V power;

[0075] The data acquisition module is connected to the power conversion module and the power module respectively, and is used to obtain 5V electric energy to collect the output voltage and current of the power conversion module, and convert the output voltage and current into a first preset voltage, and collect the power voltage and current of the power module, and convert the power voltage and current into a second preset voltage;

[0076] The data calculation and control module is respectively connected to the power conversion module, the data acquisition module, the computer display and control interface, the removable external touch screen control module and the power module, and is used to obtain 5V electric energy to receive the first preset voltage and the second preset voltage transmitted by the data acquisition module, and receive the load power-on instruction through the computer display and control interface or the removable external touch screen control module, and obtain a voltage control signal based on the first preset voltage, the second preset voltage and the load power-on instruction, and transmit the voltage control signal to the power module, wherein the voltage control signal is used to adjust the power load size, time and steady-state power size of the power module;

[0077] The power module includes multiple power devices, which are connected to the power supply input interface through the data acquisition module and to the data calculation and control module. The power module receives a voltage control signal.

[0078] The specific implementation is as follows:

[0079] When the load device is in flight operation, before use, different load power-on curve programs are downloaded to the data solution and control interface 5 through the program download and the reserved communication interface 10; the load device is installed in the aircraft, and the heat dissipation part of the load device is matched with the drainage channel of the aircraft. The power output port of the electrical subsystem of the aircraft is connected to the power supply input interface 1 of the load device, and the control interface of the aircraft is connected to the computer display and control interface 9. After the aircraft takes off and outputs full power, the emergency stop switch 2 defaults to the closed state, and the +28VDC power output by the electrical subsystem enters the load device through the power supply input interface 1 and the emergency stop switch 2; after receiving the power transmitted by the emergency stop switch 2, the power conversion module 3 converts the +28VDC power into +24VDC, +12VDC and +5VDC power with sufficient power; the +28V power is transmitted to the power module 6 through the data acquisition module 4 to provide load power for the power module; the data acquisition module 4 receives the +5VDC output of the power conversion module 3 After the power is turned on, the module starts working, collects the output voltage and current of each power module in the power conversion module 4 and adjusts them into 0-3VDC voltage, collects the power voltage and current in the output acquisition module 4 and adjusts them into 0-3VDC voltage, and transmits the above-mentioned conditioned values to the data solution and control module 5; the data solution and control module 5 starts working after receiving the +5V power output by the power conversion module 3, collects the conditioned signals output by the data acquisition module 4, calculates the voltage and current values of +24VDC, +12VDC and +5VDC respectively, and calculates the load consumption. +28VDC voltage value and current value and calculate the total power consumed by the load based on this; when the computer display and control interface 9 receives the load power-on instruction sent by the aircraft control interface and transmits it to the data solution and control module 5, the data solution and control module 5 controls the power load size, time and steady-state power size of a single or multiple power modules 6 according to the power-on instruction, and performs closed-loop power control based on the calculated +28VDC voltage value and current value; the data solution and control module 5 receives different steady-state power instructions sent by the aircraft control interface and controls a single or multiple power modules 6 steady-state power size, and perform closed-loop power control based on the calculated +28VDC voltage and current values; the data calculation and control module 5 receives the shutdown command sent by the aircraft control interface and controls single or multiple power modules 6 to not output; the data calculation and control module 5 calculates the voltage and current values of +24VDC, +12VDC and +5VDC, calculates the voltage and current values of +28VDC consumed by the load, and determines the working status of the load device based on the calculated data, and transmits the data to the aircraft control end through the computer display and control interface 9 to realize the status display of the load device;The load device has circuit breaker protection, overload protection, and short-circuit protection. The data calculation and control module 5 calculates the collected +28VDC voltage and current values and implements overload, short-circuit, and circuit breaker protection accordingly. It also calculates the +24VDC, +12VDC, and +5VDC voltages and currents output by the power conversion module 3, and accordingly determines and implements overload, short-circuit, and circuit breaker protection, and transmits the current operating status to the aircraft control interface. The load device also has overtemperature protection. When the data calculation and control module 5 collects and calculates the temperature information of the power module 6 and transmits it to the aircraft control interface, when the temperature reaches the protection temperature threshold, the data calculation and control module 5 disables the power module 6, causing the load to stop operating and transmitting status information to the aircraft control interface. If the load device cannot be shut down, the computer display and control interface 9 controls the emergency stop switch 2 to disconnect the load device's power input to protect the electrical subsystem.

[0080] The load device is controlled by the touch screen on the ground. The following are the working conditions: Before use, download the power-on curve program of different loads to the data solution and control interface 5 through the program download and the reserved communication interface 10; connect the power output port of the aircraft's electrical subsystem or other power output port to the load device power input interface 1, and connect the external removable touch screen control module 8 to the data solution and control module 5; connect the removable external cooling fan module 7 to the power conversion module 3. The +28VDC power output by the electrical subsystem or other load is connected to the emergency stop switch 2 through the power input interface 1. The emergency stop switch 2 is in the closed state by default, and the power enters the load device through the emergency stop switch 2; after receiving the power transmitted by the emergency stop switch 2, the power conversion module 3 converts the +28VDC power into +24VDC, +12VDC and +5VDC power; the +28VDC power is transmitted to the power module 6 through the data acquisition module 4 to provide load power for the power module; the data acquisition module 4 receives the +5VDC power output by the power conversion module 3. After that, it starts working, collects the output voltage and current of each power module in the power conversion module 4 and adjusts them into 0~3VDC electricity, collects the power voltage and current in the output acquisition module 4 and adjusts them into 0~3VDC electricity, and transmits the above-mentioned conditioned voltage and current values to the data solution and control module 5; the data solution and control module 5 starts working after receiving the +5VDC power output by the power conversion module 3, collects the conditioned signals output by the data acquisition module 4, calculates the voltage and current values of +24VDC, +12VDC and +5VDC respectively, and calculates The +28VDC voltage value and current value consumed by the load are used to calculate the total power consumed by the load; the data calculation and control module 5 receives the load power-on instruction sent by the unloadable external touch screen control module 8, and the data calculation and control module 5 controls the power load size, time and steady-state power size of a single or multiple power modules 6 according to the power-on instruction, and performs closed-loop control of the power according to the calculated +28VDC voltage value and current value; the data calculation and control module 5 receives different steady-state power instructions sent by the unloadable external touch screen control module 8 and controls a single or multiple power modules 6 steady-state power size and perform closed-loop control of power according to the calculated +28VDC voltage value and current value; the data solution and control module 5 receives the shutdown command sent by the unloadable external touch screen control module 8 and controls the single or multiple power modules 6 to be disabled; the data solution and control module 5 calculates the voltage and current values of +24VDC, +12VDC and +5VDC, calculates the voltage and current value of +28VDC consumed by the load and determines the working status of the load device accordingly and transmits the data to the unloadable external touch screen control module 8 to realize the status display of the load device;The load device has circuit breaker protection, overload protection, and short-circuit protection functions. The data calculation and control module 5 calculates the collected +28VDC voltage and current values and implements overload, short-circuit, and circuit breaker protection accordingly. It also calculates the +24VDC, +12VDC, and +5VDC voltages and currents output by the power conversion module 3 and implements overload, short-circuit, and circuit breaker protection accordingly. It also transmits the current operating status to the removable external touch screen control module 8. The load device also has temperature collection, temperature control, and overtemperature protection functions. When the data calculation and control module 5 collects and calculates the temperature information of the power module 6, it transmits this temperature information to the removable external touch screen control module 8 for display. When the power module temperature reaches the temperature control threshold, the data calculation and control module 5 controls the external cooling fan module to operate to control the power module temperature. When the power module temperature reaches the protection control threshold, the data calculation and control module 5 disables the power module 6, causing the load to stop operating. The load status information is then transmitted to the removable external touch screen control module 8 for display.

[0081] The load device is controlled by the upper computer on the ground. The difference between this working mode and the ground touch screen control module is that the load device control and display are connected to the upper computer through the computer display and control interface 9 to replace the function of the uninstallable external touch screen control module 8.

[0082] Ground-based wireless control of the load device: This operating mode differs from the ground-based touch screen control module in that the load device control and display are connected to the wireless communication module via program download and a reserved communication interface 10. The wireless communication module is then connected to the host computer, replacing the function of the removable external touch screen control module 8. Wireless communication modules include Wi-Fi modules, Zigbee modules, or other modules.

[0083] While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A load device with air-ground dual-purpose function, characterized in that: include: Power supply input interface, power conversion module, data acquisition module, data calculation and control module and power module; The power supply input interface is used to connect to the power output port of the electrical subsystem of the aircraft to input 28V electrical energy to the load device; The power conversion module is connected to the power supply input interface, and is used to receive the input 28V power and convert the 28V power into 5V power; The data acquisition module is connected to the power conversion module and the power module respectively, and is used to obtain the 5V electric energy to collect the output voltage and current of the power conversion module, and convert the output voltage and current into a first preset voltage, and collect the power voltage and current of the power module, and convert the power voltage and current into a second preset voltage; The data calculation and control module is respectively connected to the power conversion module, the data acquisition module, the computer display and control interface, the removable external touch screen control module and the power module, and is used to obtain the 5V electric energy to receive the first preset voltage and the second preset voltage transmitted by the data acquisition module, and receive the load power-on instruction through the computer display and control interface or the removable external touch screen control module, and obtain a voltage control signal based on the first preset voltage, the second preset voltage and the load power-on instruction, and transmit the voltage control signal to the power module, wherein the voltage control signal is used to adjust the power load size, time and steady-state power size of the power module; The power module includes a plurality of power devices, is connected to the power supply input interface through the data acquisition module, and is connected to the data calculation and control module, and receives the voltage control signal; The removable external touch screen control module is connected to the power conversion module and is used to obtain the 12V electric energy converted by the power conversion module to obtain the load power-on instruction and display the working status of the load device; The power conversion module includes a first power module, a second power module and a third power module, wherein the first power module is used to convert the 28V power into the 5V power, the second power module is used to convert the 28V power into 24V power, and the third power module is used to convert the 28V power into 12V power; a plurality of detachable external cooling fan modules, wherein the plurality of detachable external cooling fan modules are connected in parallel and are respectively connected to the power conversion module to obtain 24V electric energy converted by the power conversion module; The obtaining of a voltage control signal based on the first preset voltage, the second preset voltage, and the load power-on instruction, and transmitting the voltage control signal to the power module includes: Calculating a voltage value and a current value of the first power module based on the first preset voltage and the second preset voltage; Calculating the voltage and current values of the 28V electric energy consumed by the power module based on the voltage and current values of the first power module; Calculating the total power consumed by the power module based on the voltage value and current value of the 28V electric energy consumed by the power module; The voltage control signal is calculated based on the total power consumed by the power module and the load power-on instruction, and the voltage control signal is transmitted to the power module.

2. The load device with air-ground dual-purpose function according to claim 1, characterized in that: Also includes: The program download and reserved communication interface is connected to the data calculation and control module and is used to download power-on curves of different loads into the data calculation and control module.

3. The load device with air-ground dual-purpose function according to claim 1, characterized in that: There are multiple power modules, and the multiple power modules are connected in parallel. The multiple power modules are respectively connected to the data acquisition module and the data calculation and control module.

4. The load device with air-ground dual-purpose function according to claim 1, characterized in that: The power supply input interface is connected to the data acquisition module and the power conversion module respectively through an emergency stop switch.

5. The load device with air-ground dual-purpose function according to claim 1, characterized in that: The computer display and control interface is connected to the control end of the aircraft, and is used to receive the load power-on instruction transmitted through the control end of the aircraft, and transmit the working status of the load device to the control end of the aircraft.

6. The load device with air-ground dual-purpose function according to claim 1, characterized in that: The voltage range of the first preset voltage and the second preset voltage is 0-3V.

Images