CN217227957U - Analog load management system - Google Patents

Abstract

The application belongs to the field of airplane ground tests, and particularly relates to a simulation load management system. The method comprises the following steps: the device comprises a fault injection system, a signal conditioning box, a test system, a power supply monitoring box, a simulation load and display equipment. The fault injection system is electrically connected with the tested object; the signal conditioning box is electrically connected with the fault injection system; the test system is electrically connected with the signal conditioning box; the power supply monitoring box is respectively electrically connected with the signal conditioning box and the test system and is used for supplying power to the signal conditioning box and the test system; the analog load realizes data interaction with the test system through the switch; the display device realizes data interaction with the test system through the KVM device. The automatic loading and unloading function with high reliability and high precision can be realized according to the flight profile, the fault load can be automatically removed, meanwhile, the remote monitoring and control can be realized in real time, and the problems that the simulation loads are numerous in types, the centralized loading and unloading are troublesome, the disturbance resistance capability is poor, the field environment is severe and the precise operation on the field is difficult are well solved.

Description

Analog load management system

Technical Field

The application belongs to the field of airplane ground tests, and particularly relates to a simulation load management system.

Background

With the rapid development of aviation science and technology, airborne equipment is greatly increased, the automation degree is increasingly improved, and in order to evaluate whether the quality of a power supply system can meet the requirements of design specifications and analyze various parameter indexes of the power supply system in steady and transient states, the quality of the power supply system of an airplane in different working states must be comprehensively tested. Currently, all test procedures are performed on the ground, which requires that different types of loads simulating various onboard devices be loaded during ground testing.

In the traditional loading simulation mode, a tester calculates the matching values of resistive, inductive and capacitive loads in advance and then inputs parameters such as load values, power factors and the like locally and manually, so that the operation is complicated. For load changes caused by different stages of tests and flight in a transient state, as the load types are numerous, centralized loading and unloading are not easy to realize, and simultaneously, the load has poor anti-interference capability, accurate operation is difficult to carry out on site under the conditions of severe site environment and high-pressure danger, and great difficulty is brought to ground tests.

Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.

SUMMERY OF THE UTILITY MODEL

It is an object of the present application to provide an analog load management system to solve at least one problem of the prior art.

The technical scheme of the application is as follows:

an analog load management system comprising:

a fault injection system electrically connected to a subject;

the signal conditioning box is electrically connected with the fault injection system;

the test system is electrically connected with the signal conditioning box;

the power supply monitoring box is respectively and electrically connected with the signal conditioning box and the test system and is used for supplying power to the signal conditioning box and the test system;

the analog load realizes data interaction with the test system through the switch;

and the display equipment realizes data interaction with the test system through the KVM equipment.

In at least one embodiment of the present application, the power monitoring box, the switch, the signal conditioning box, and the test system are integrated in a test cabinet.

In at least one embodiment of the present application, the power monitoring box draws in mains electricity.

In at least one embodiment of the present application, the switch enables data interaction between the dummy load and the test system through LAN communication.

In at least one embodiment of the present application, the dummy load includes an alternating current dummy load, a direct current dummy load, a start dummy load, and a pulse dummy load.

In at least one embodiment of the present application, the alternating current dummy load, the starting dummy load and the pulse dummy load transmit the voltage and current signals collected in real time to the signal conditioning box through sensors.

Utility model has the following beneficial technical effects:

the simulation load management system can realize the automatic loading and unloading functions with high reliability and high precision according to the flight profile, can automatically remove the fault load, can remotely monitor and control in real time, and well solves the problems that the simulation loads are numerous in types, complicated in centralized loading and unloading, poor in disturbance resistance, bad in field environment and difficult to accurately operate on site.

Drawings

Fig. 1 is a schematic diagram of a simulated load management system according to an embodiment of the present application.

Wherein:

1-power supply monitoring box; 2-alternating current analog load; 3-a direct current analog load; 4-starting the analog load; 5-pulse type analog load; 6-the subject; 7-fault injection system; 8-a switch; 9-a signal conditioning box; 10-a test system; 11-KVM device; 12-display device.

Detailed Description

In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are some, but not all embodiments of the disclosure. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.

The present application is described in further detail below with reference to fig. 1.

The application provides a simulated load management system, including: fault injection system 7, signal conditioning box 9, test system 10, power monitoring box 1, analog load and display device 12.

Specifically, as shown in fig. 1, the fault injection system 7 is electrically connected to the object 6 to be tested, the signal conditioning box 9 is electrically connected to the fault injection system 7, and fault data of the object 6 to be tested can be transmitted to the signal conditioning box 9 through the fault injection system 7; the test system 10 is electrically connected with the signal conditioning box 9, the test system 10 can be a PXI test system, and the test system 10 can be used for resolving, analyzing and processing signals transmitted by the signal conditioning box 9; the power supply monitoring box 1 is respectively electrically connected with the signal conditioning box 9 and the test system 10, and the power supply monitoring box 1 introduces commercial power for supplying power to the signal conditioning box 9 and the test system 10 and can monitor whether the power supply works normally; the analog load realizes data interaction with the test system 10 through the switch 8; the display device 12 implements data interaction with the test system 10 through the KVM device 11, and implements display of data through the display device 12.

In the preferred embodiment of the present application, the power monitoring box 1, the switch 8, the signal conditioning box 9 and the test system 10 are integrated in a test cabinet.

In the preferred embodiment of the present application, the switch 8 implements data interaction between the simulated loads and the test system 10 via LAN communication.

In the preferred embodiment of the present application, the dummy loads may include an ac dummy load 2, a dc dummy load 3, a starting dummy load 4, and a pulse type dummy load 5. In this embodiment, the ac analog load 2, the starting analog load 4, and the pulse analog load 5 also send the voltage and current signals collected in real time to the signal conditioning box 9 through the sensors.

The utility model provides an analog load management system, introduce the commercial power through power monitoring box 1, provide whole analog load management system power supply after protection and conversion, exchange analog load 2, direct current analog load 3, start analog load 4, pulsed analog load 5 after starting, through switch 8, transmit parameters such as voltage, electric current, power to test system 10 through LAN communication, exchange analog load 2, start analog load 4, pulsed analog load 5 send the voltage and the electric current signal of real-time collection to signal conditioning case 9 through the sensor simultaneously, after signal conditioning case 9 is reconciled, transmit recognizable signal to test system 10 and solve, analysis and processing, test system 10 transmits the data after final analysis to display device 12 through KVM equipment 11 long-range demonstration.

According to the simulation load management system, when a flight profile needs to be switched or a simulation load value needs to be changed, corresponding parameters are selected or changed on an operation interface of a display device 12 and are transmitted to a test system 10 through a KVM device 11, the test system 10 automatically distributes the power, power factor and current value of a load after receiving a parameter signal, the corresponding parameters are sent to an alternating current simulation load 2, a direct current simulation load 3, a starting simulation load 4 and a pulse type simulation load 5 through LAN communication through an exchanger 8, the alternating current simulation load 2, the direct current simulation load 3, the starting simulation load 4 and the pulse type simulation load 5 receive instructions for quick response, the corresponding output parameters are changed, corresponding load channels are closed, and sudden addition and sudden unloading of the high-power load are carried out, so that quick switching of various types of loads is achieved.

According to the simulation load management system, when a fault injection test needs to be performed, a corresponding fault type parameter is selected on an operation interface of a display device 12, after the fault injection test is confirmed, the fault type parameter is transmitted to a test system 10 through a KVM device 11, the test system 10 receives a signal and then issues a corresponding control parameter to a fault injection system 7 through a signal conditioning box 9, and the fault injection system 7 receives an instruction and then performs corresponding fault control such as short circuit and open circuit on a tested object 6 according to a corresponding fault type.

According to the simulation load management system, after the tested object 6 has a fault, the fault parameters are collected by the fault injection system 7 and then sent to the signal conditioning box 9 for conditioning, after the signal conditioning box 9 is conditioned, the collected signals are uploaded to the test system 10 for corresponding resolving, analyzing and processing, and the final result is remotely transmitted to the display device 12 through the KVM device 11 for displaying.

According to the simulation load management system, the precision of load parameter collection is that the voltage precision is not lower than 5 per thousand, the current precision is not lower than 8 per thousand, parameters of various simulation loads can be accurately collected, and powerful support is provided for accurate calculation of parameters such as load capacity and power factor; the simulated load management system can automatically complete the distribution and management of the load according to the flight condition, effectively improve the test efficiency and simplify the labor of testers; the remote monitoring and control of the site are realized, and the traditional mode that centralized loading and unloading are difficult to realize and the anti-interference capability is poor due to a plurality of load types and a plurality of loads is broken through; the problem that accurate operation cannot be performed under the conditions of severe field environment, high-voltage danger, simulated load fault and other destructive tests is solved; the system has the advantages of real-time remote monitoring and control, high control precision, safety, reliability, simple interface operation, convenient installation and movement due to the integration of the system in a standard cabinet, and strong universality due to the adjustability and the modification of all parameters. The device has the advantages of simple and novel structure and reliable performance, thoroughly meets the requirements of high control precision, high response speed, high safety and high efficiency of the aircraft electrical simulation load management system, thereby improving the test efficiency and safety, saving a large amount of human resources, realizing universality due to adjustable parameters of the device, and being widely applied to ground simulation tests of various models.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (6)

1. An analog load management system, comprising:

a fault injection system (7), the fault injection system (7) being electrically connected to a subject (6);

the signal conditioning box (9), the signal conditioning box (9) is electrically connected with the fault injection system (7);

the test system (10), the said test system (10) is connected electrically with the said signal conditioning box (9);

the power supply monitoring box (1), the power supply monitoring box (1) is respectively electrically connected with the signal conditioning box (9) and the test system (10), and is used for supplying power to the signal conditioning box (9) and the test system (10);

the analog load realizes data interaction with the test system (10) through a switch (8);

a display device (12), the display device (12) enabling data interaction with the test system (10) through a KVM device (11).

2. The analog load management system according to claim 1, characterized in that the power supply monitoring box (1), the switch (8), the signal conditioning box (9) and the test system (10) are integrated in a test cabinet.

3. The analog load management system according to claim 1, characterized in that the power supply monitoring box (1) introduces mains.

4. The dummy load management system according to claim 1 characterized in that the switch (8) enables data interaction between the dummy load and the test system (10) through LAN communication.

5. The analog load management system according to claim 4, wherein the analog loads comprise an alternating current analog load (2), a direct current analog load (3), a start analog load (4), and a pulsed analog load (5).

6. The dummy load management system according to claim 5, characterized in that the alternating dummy load (2), the starting dummy load (4) and the pulsed dummy load (5) send the voltage and current signals collected in real time to the signal conditioning box (9) by means of sensors.

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