KR101687202B1 - Interface Apparatus of Electrical Ground Support Equipment - Google Patents

Abstract

The present invention relates to an interface device for a ground support device, wherein the device comprises at least one power supply part, one end of which is mounted inside the power ground support equipment, and at least one And an interface unit connected to at least one of the solar panel simulation power supply units and the other end connected to at least one electronic load unit to perform a switching operation for each path connected to the electronic load unit according to the type of the power supply unit to be verified do. According to the present invention, a standardized interface can be connected between the ground support equipment and the electronic load device to verify the power performance of the ground support equipment.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interface device of a ground support device, and more particularly, to an interface device of a ground support device connected between a ground support device and an electric load to support a standardized interface.

Generally, a satellite is an artificial device that is fired from the earth and orbits the earth, and is used in scientific observations, industrial activities such as collecting information necessary for safety, including military, or using space. Once the launch is completed, the satellite can not be repaired and returned to the ground even if a failure occurs. Therefore, it is accompanied by rigorous test evaluation at every stage from initial design stage to production and performance verification stage.

In order to verify whether the satellites are functioning normally according to the demands of the satellite's power system, attitude control system, and remote measurement command system until the satellite design and assembly are launched, ground support equipment (EGSE: Electrical Ground Support Equipment) And the satellite function test is carried out.

Among these satellites function tests, satellite electric power system function tests are performed by connecting the power ground support equipment (Power EGSE) and the solar array simulated earth support equipment (SAS EGSE: Solar Array Simulator EGSE) Can be confirmed.

However, conventionally, interfaces are set differently according to types of satellites, functions, types of ground supporting equipment, and so, there is a problem that individual components or assemblies must be used to verify respective power performance.

In addition, since individual components or assemblies due to the change of the interface vary according to the approval or verification power requirement of the satellite test apparatus, there is a problem in that it is not suitable for use in verification of the power performance of the ground support equipment having various types or functions.

In addition, the need for a standardized interface device has emerged because of the likelihood that it could pose a risk to users in low power and high power approval or validation tests.

Korean Published Patent Application No. 2008-0061886 (Published Date 2008. 07. 03.)

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an interface device of a ground support device which is connected between a ground support device and an electronic load device to support a standardized interface in order to verify the power performance of the ground support device.

Further, the present invention includes other objects that can be achieved from the construction of the present invention described later, in addition to the objects explicitly mentioned.

According to an aspect of the present invention, there is provided an interface device for ground support equipment, including at least one power supply unit mounted inside a power ground support device, And the other end is connected to at least one electronic load device to perform a switching operation for each path connected to the electronic load device according to the type of the electric power supply part to be verified And an interface unit.

Wherein the interface unit is connected between the at least one power supply unit and the at least one solar panel simulated power supply unit and the electronic load unit and includes at least one of the at least one power supply unit and the at least one solar panel simulated power supply unit A first switching circuit part including a plurality of first switches connected between the at least one power supply part and the test connection part, A second switching circuit part including a plurality of second switches connected between the solar panel simulation power supply part and the test connection part and a plurality of third switches connected between the test connection part and the electronic load device, Circuitry.

The test connection unit may include a plurality of test points including first and second test terminals respectively connected to the first and second terminals of the external measuring apparatus, and the plurality of test points may be provided.

The at least one power supply unit may output at least one power signal for each power supply unit to be input to the at least one electronic load unit through at least one corresponding test point.

The at least one solar panel replica power supply unit may output at least one power signal for each solar panel replica power supply unit to be input to the at least one electronic load device through at least one corresponding test point.

As described above, according to the interface device of the ground support device according to the embodiment of the present invention, it is possible to provide the interface device of the ground support device without having to individually provide parts or assemblies suitable for the type, function, There is an advantage in that it can be used to verify the power performance of the power supply installed inside the ground support equipment by simply changing the switch on / off.

On the other hand, the effects of the present invention are not limited to those described above, and other effects that can be derived from the constitution of the present invention described below are also included in the effects of the present invention.

1 is a schematic view illustrating an interface device of a ground support device according to an embodiment of the present invention.
2 is a view showing a path of a power signal transmitted from a first power supply unit to an electronic load unit of the power ground support equipment.
3 is a view showing a path of a power signal transmitted from the first and second power supply units of the power ground support equipment to the electronic load device.
4 is a view showing a path of a power signal transmitted from the first solar panel simulation power supply unit of the solar panel simulated ground support apparatus to the electronic load apparatus.
5 is a view showing a path of a power signal transmitted from the first and second solar panel simulation power supply units of the solar panel simulated ground support apparatus to the electronic load apparatus.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

FIG. 1 is a block diagram schematically showing an interface device of a ground support equipment according to an embodiment of the present invention.

1, an interface device 100 of a ground support equipment includes at least one power ground support equipment 30, at least one solar panel simulated ground support equipment 50, at least one electronic load device 70, respectively. For convenience of explanation, in the embodiment of the present invention, two power supply units (first power supply unit 30a, second power supply unit 30b) mounted inside the power ground support equipment 30, Two solar panel replica power supply units (the first solar panel replica power supply unit 50a and the second solar panel replica power supply unit 50b) mounted in the support equipment 50 and the six electronic load devices 1 to the sixth electronic load devices 70a to 70f).

The interface device 100 of the ground support equipment is connected at one end to at least one of the first and second power supply units 30a and 30b and the first and second solar panel simulated power supply units 50a and 50b, The interface unit 70 is connected to at least one electronic load unit 70 (70a to 70f) and performs switching operation for each path connected to the electronic load unit 70 (70a to 70f) according to the type of ground support equipment to be verified (150).

The first and second power supply units 30a and 30b are devices for supplying electric power to a bus bar or the like inside a satellite body power system or a satellite body power system and the first and second solar panel substrate power supply units 50a and 50b, (I) -voltage (V) data of the power output from the satellite solar panel to verify the performance of the satellites power system. It can simulate the power output from the solar panel according to the orbit of the satellite , Nonlinear current output characteristics can be shown. The characteristic curves for the current (I) - voltage (V) of the power output from the solar panel may differ depending on the temperature of the solar panel and the incidence angle of the sunlight. The power characteristics of a solar panel can include short-circuit current, open-circuit voltage and current and voltage at maximum power point, and can convert solar radiation into electrical energy and supply it to each component of the satellite battery and satellites via the power distribution bus. have.

Thus, the simulated ground support apparatus 50 of the solar panel simulates the power output from the solar panel according to the trajectory of the satellite so that the power performance of the satellite power system can be verified in the orbital environment of the satellite on the ground. Then, the solar panel simulated ground support apparatus 50 can supply electric power according to the current-voltage simulation data of the solar panel to the electronic load apparatus 70.

More specifically, the interface section 150 may include a test connection section 152, a first switching circuit section 154, a second switching circuit section 156, and a third switching circuit section 158.

The test connection 152 is connected between the first and second power supplies 30a and 30b and the first and second solar panel replica power supplies 50a and 50b and the electronic load device 70, Receives the power signal from at least one of the second power supply units (30a, 30b) and the first and second solar panel replica power supply units (50a, 50b), and transfers the power signal to the electronic load unit (70).

The test connection 152 includes a plurality of test points 152a-152n, which are first and second test terminals 152a1-152n1, 152a2-152n2, respectively, which are connected to the first and second terminals of the external measuring instrument . Here, the first test terminal 152a1 may be a positive terminal, and the second test terminal 152a2 may be a negative terminal. Of course, it is also possible that the first test terminal is a negative terminal and the second test terminal is a positive terminal.

The plurality of test points 152a to 152n can directly measure a desired power signal using an oscilloscope or a multimeter. Here, a method of directly connecting a shunt resistor or a signal measuring device to a transmission line or individual line between the power supply units 30a and 30b and the solar panel simulation power supply units 50a and 50b and the test connection unit 152 So that the current measurement can be made at the plurality of test points 152a to 152n and the power performance for the current can be verified accordingly.

More specifically, the plurality of test points 152a to 152n may include first and second test points included in an external measuring instrument such as an oscilloscope or a multimeter to provide an interface for measuring noise, ripple, The first and second test terminals 152a1 to 152n1 and 152a2 to 152n2 of the test points 152a to 152n may be connected to the first and second power supply units 30a and 30b, And the second solar panel replica power supply units 50a and 50b are transmitted to the external measuring equipment through each test terminal to measure and verify the power signal.

The first switching circuit unit 154 may include a plurality of first switches SW11 to SW1n connected between the first and second power supply units 30a and 30b and the test connection unit 152. [ One end of the first switching circuit unit 154 is connected to the connection terminals of the first and second power supply units 30a and 30b and the other end of the first switching circuit unit 154 is connected to the first and second test points 152a and 152b of the test connection unit 152 Can be connected.

More specifically, the first switching circuit unit 154 includes a 1-1 transmission line P11, a 1-1 transmission line P11, and a 1-1 transmission line P11 connecting the first power supply unit 30a and the first test point 152a. A 1-2 first transmission line P12 connecting between the second power supply unit 30b and the second test point 152b, And a first switch SW12 formed on the first switch SW2. In the embodiment of the present invention, for convenience of description, one switch is disposed between one transmission line and one transmission line between the first power supply unit 30a and the first test point 152a In practice, one transmission line and one switch are disposed between the first power supply 30a and the first test terminal 152a1 and between the first power supply 30a and the second test terminal 152a2, respectively .

The second switching circuit unit 156 may include a plurality of second switches SW21 to SW2n connected between the first and second solar panel replica power supply units 50a and 50b and the test connection unit 152. [

More specifically, the second switching circuit unit 156 includes a plurality of second-1 transmission lines P211 to P21n for connecting the first solar panel substrate power supply unit 50a and the third test point 152c, A plurality of second-1 switches SW211 to SW21n disposed in the first-second transmission lines P21 to P2n and a plurality of second-1 switches SW211 to SW21n connected between the second solar panel replica power supply unit 50b and the fourth test point 152d 2-2 switches SW221 to SW22n disposed in the plurality of 2-2 transmission lines P221 to P22n and the plurality of the 2-2 transmission lines P221 to P22n. The second switching circuit unit 156 includes a plurality of second to third transmission lines (P211 to P21n) for connecting between the plurality of second-first transmission lines (P211 to P21n) and the plurality of second- P231 to P23n and a plurality of second to third switches SW231 to SW23n disposed in the plurality of second to third transmission lines P211 to P21n.

The first and second power supply units 30a and 30b and the first and second solar panel replica power supplies 50a and 50b have the same configuration as that of the first switching circuit unit 154 and the second switching circuit unit 156, , 50b are different in the characteristics of the power module itself. That is, the first and second power supply units 30a and 30b have a general power supply characteristic, and the first and second solar panel solar power supply units 50a and 50b may have a solar panel simulation characteristic . Accordingly, the first and second power supply units 30a and 30b can generally select the capacity selection of the power module from, for example, 3KW / 5KW / 10KW, but the first and second solar panel replica power supplies 50a and 50b ) Can be selected in accordance with the power output characteristics of each solar panel section, so that the manufacturer does not have to make the capacity to all the specifications at will, but it is configured to flexibly cope with any power module connected.

The third switching circuit unit 158 may include a plurality of third switches SW31 to SW3n connected between the test connection unit 152 and the electronic load unit 70. [

More specifically, the third switching circuit unit 158 includes a plurality of third-first transmission lines P311 (P311 to P611) that connect between the plurality of test points 152a to 152n and the first to sixth electronic load devices 70a to 70f, A plurality of third-1 switches SW311 to SW31n and a plurality of third-first transmission lines P311 to P31n disposed in the plurality of third-first transmission lines P311 to P31n, And a plurality of third-second switches SW321 to SW32n disposed on the third to third transmission lines P321 to P32n and the third to second transmission lines P321 to P32n. The third switching circuit unit 158 may switch on / off the plurality of third switches to selectively transmit the at least one power signal output from the test point to the plurality of electronic load devices.

Here, the first to sixth electronic load devices 70a to 70f can assume an electronic load of at most 500W, and in order to verify the power path of each of the first power supply 30a and the second power supply 30b The plurality of electronic load devices 70a to 70f can be designed to be all connected or appropriately distributed according to the allowable load. The first power supply 30a is connected to the three electronic load devices 70a to 70c and the second power supply 30a is connected to the first power supply 30a and the second power supply 30b, 30b may be designed to be connected to the remaining electronic load devices 70d to 70f.

In the case of one channel for verifying the power output from the first solar panel board simulation power supply unit 50a, it may be connected to the third test point 152c and connected to the three electronic load devices 70a to 70c. Alternatively, it may be connected to the fourth test point 152d and connected to the remaining electronic load devices 70d to 70f. In case of two channels, the third test point 152c and the fourth test point 152c are connected to the third test point 152c and the fourth test point 152d, respectively. The third test point 152c is connected to the first electronic load device 70a, And the second electronic load device 152d may be connected to the fourth electronic load device 70d. The first solar panel replica power supply unit 50a is connected to the third test point 152c to simultaneously verify the power output from the first solar panel replica power supply unit 50a and the second solar panel replica power supply unit 50b And the second solar panel replica power supply 50b may be connected to the fourth test point 152d and connected to the remaining electronic load devices 70d to 70f . And may be suitably connected according to various conditions and conditions.

In this way, the interface unit 150 can perform various tests such as a satellite battery charging test, a satellite battery discharge test, a power supply test, a power condition monitoring, The system is connected between the analog ground support equipment 50 and the electronic load device 70 to provide an interface for verifying the power interface performance or to be connected to an external measuring instrument such as an oscilloscope or a multimeter to verify the performance of each power characteristic . ≪ / RTI >

Hereinafter, the first and second power supply units 30a and 30b mounted in the power ground support equipment and the first and second solar panel simulation power supply units 50a and 50b mounted in the solar panel simulated ground support equipment, A description will be given of a process in which the power signal output from the electronic load device is input to the electronic load device.

2 is a view showing a path of a power signal transmitted from a first power supply unit to an electronic load unit of the power ground support equipment.

FIG. 3 is a view showing a path of a power signal transmitted from the first and second power supply units of the power ground support equipment to the electronic load device, FIG. 4 is a view showing a path from the first solar panel simulation power supply unit of the solar panel simulated ground support equipment to the electronic load FIG. 5 is a view showing a path of a power signal transmitted from the first and second solar panel replica power supplies of the solar panel simulated ground support equipment to the electronic load device.

Referring to FIG. 2, the first power supply 30a outputs a first power signal, and the first power signal is input to the first test point 152a by the on-switching operation of the 1-1 switch SW11 And can be transmitted to the electronic load device corresponding to the first electric power supply section 30a among the plurality of electronic load devices.

3 shows that the first power supply unit is connected to the electronic load device together with the second power supply unit, the first and second power supply units 30a and 30b output the first and second power signals, respectively, The first and second power signals output by the on-switching operation of the 1-1 switch (SW11) and the 1-2 switch (SW12) are input to the first and second test points (152a and 152b) And the electronic load devices corresponding to the second power supply units 30a and 30b, respectively.

4, in the first solar panel board simulation power supply unit 50a, the third power signal outputted from the third and fourth power signals is inputted to the third test point 152c, and the fourth power signal is inputted to the fourth test Point 152d. The third power signal outputted from the third test point 152c by the ON operation of the second switch is transmitted to the corresponding first electronic load device 70a and the third power signal outputted from the fourth test point 152d 4 power signal can be transmitted to the corresponding fourth electronic load device 70d. FIG. 4 may correspond to both the manufacturer's hardware constraints and the constraints of the power path within the power meter receiving the power input of the low orbit / stationary solar panel.

5, a third power signal is output from the first solar panel board power supply unit 50a to the third test point 152c, and a fourth power signal is supplied from the second solar panel board power supply unit 50b. And may be input to the third test point 152c. At the third test point 152c, a plurality of third power signals and a plurality of fourth power signals are output to the first and second electronic load devices 70a and 70b and the fourth and fifth electronic load devices 70d , 70e, respectively. FIG. 5 corresponds to a restriction condition of a power path in a power meter receiving a power input of a low-earth orbiting solar panel, and a low-orbit satellite can supply power to the power meter in this manner.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

100: Interface device of ground support equipment
150:
152: test connection section 154: first switching circuit section
156: second switching circuit part 158: third switching circuit part

Claims (5)

delete At least one power supply connected to at least one of the at least one power supply unit mounted inside the power ground support equipment and at least one solar panel simulated power supply unit mounted inside the solar panel simulated ground support equipment, An interface unit for performing a switching operation for each path connected to the electronic load device in accordance with a type of a power supply unit connected to the device to be verified,
Lt; / RTI >
The interface unit includes:
And at least one solar panel replica power supply connected between said at least one power supply and said at least one solar panel replica power supply and at least one of said at least one power supply and said at least one solar panel replica power supply, A test connection unit for receiving a power signal from the electronic load device and transmitting the received power signal to the electronic load device,
A first switching circuit part including a plurality of first switches connected between the at least one power supply part and the test connection part,
A second switching circuit part including a plurality of second switches connected between the at least one solar panel replica power supply part and the test connection part, and
And a third switching circuit part including a plurality of third switches connected between the test connection part and the electronic load device. 3. The method of claim 2,
The test connection unit,
And a test point comprising first and second test terminals respectively connected to first and second terminals of the external measuring instrument,
The test point may include:
Interfacing device for multiple ground support equipment. 4. The method of claim 3,
Wherein the at least one power supply unit comprises:
Wherein at least one power signal is output for each power supply unit to be input to the at least one electronic load device via at least one corresponding test point. 4. The method of claim 3,
Wherein the at least one solar panel plate power supply unit comprises:
Wherein at least one power signal is output for each solar panel simulated power supply to be input to the at least one electronic load device via at least one corresponding test point.

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