Anti-icing and de-icing distribution box test system

Abstract

The invention relates to an anti-icing and de-icing distribution box test system. Comprising a controller, a multiplexing module, a relay module, a data acquisition module, a high-low temperature box, a three-phase alternating current power supply, a ground switch signal conversion circuit and a load resistance box, the anti-icing and deicing distribution box test system comprises a control system, a switch system, an acquisition module, a power supply system, a high and low temperature box, a ground switch signal conversion circuit and a load resistance box. The system can automatically complete the performance test of the anti-icing and deicing distribution box, guarantees the consistency and accuracy of test results, improves the test efficiency, and reduces the labor cost.

Description

Technical Field

[0001] The invention belongs to the technical field of detection devices and relates to an anti-icing distribution box testing system. Background Art

[0002] The prior art anti-icing distribution box needs to be tested for performance under normal temperature, low temperature and high temperature conditions during the transfer and acceptance process. Due to the long temperature polling cycle, many test items and multiple tests, it will greatly occupy the operator's working time. Summary of the invention

[0003] The purpose of the present invention is to provide an anti-icing distribution box test system, which can control the temperature polling of high and low temperature boxes in a linked manner, complete the performance test under different temperature conditions, and store and output reports.

[0004] The technical solution of the present invention is:

[0005] Provided is an anti-icing distribution box test system, comprising a controller, a multiplexing module, a relay module, a data acquisition module, a high and low temperature box, a three-phase AC power supply, a ground-opening signal conversion circuit and a load resistance box;

[0006] The high and low temperature box has a closed box body, and a heating device and a cooling device are arranged inside the box body; the device under test is placed in the high and low temperature box for testing;

[0007] A ground-open signal conversion circuit comprises a resistor, a ground-open signal input terminal and a high-low level signal output terminal; the ground-open signal input terminal and the high-low level signal output terminal are both connected to one end of the resistor, and the other end of the resistor is connected to a +5V power supply; when the ground-open signal input terminal inputs a ground signal, the resistor plays a circuit-breaking role, so that the high-low level signal outputs a low level; when the ground-open signal input terminal inputs an open signal, a +5V voltage is present between the high-low level signal output terminal and the other end of the resistor, and a high level is output;

[0008] The controller can communicate and control the device under test, the high and low temperature chamber, the data acquisition module, the switch system and the three-phase AC power supply; the three-phase AC power supply is used to power the device under test;

[0009] The multiplexing module is used to control the on and off of the power supply of multiple devices under test, switch the power supply channels, and time-share multiplex; the relay module is used to provide a ground-opening signal to the device under test;

[0010] The data acquisition module is used to collect the voltage analog signal and ground open signal output by the device under test.

[0011] Furthermore, a load resistor is included, and the load resistor is used to test the safety of the system and can stabilize the voltage and current of the system.

[0012] Furthermore, the controller communicates with the three-phase AC power supply via an RS422 interface.

[0013] Furthermore, the controller communicates with the device under test via a network port.

[0014] The advantages of the present invention are as follows: the anti-icing distribution box test system of the present invention includes a control system, a switch system, a collection module, a power supply system, a high and low temperature box, a ground signal conversion circuit and a load resistance box. The system can automatically complete the performance test of the anti-icing distribution box, ensure the consistency and accuracy of the test results, improve the test efficiency, and reduce labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the test system of the present invention;

[0016] Figure 2 Circuit diagram of ground open signal conversion circuit. DETAILED DESCRIPTION

[0017] The disclosed examples will be more fully described with reference to the accompanying drawings, in which some (but not all) of the disclosed examples are shown. In fact, many different examples may be described and these examples should not be construed as limited to the examples set forth herein. Instead, these examples are described so that this disclosure will be thorough and complete and will fully convey the scope of the disclosure to those skilled in the art.

[0018] Provided is an anti-icing distribution box test system, comprising a controller, a multiplexing module, a relay module, a data acquisition module, a high and low temperature box, a three-phase AC power supply, a ground-opening signal conversion circuit and a load resistance box;

[0019] The high and low temperature box has a closed box body, and a heating device and a cooling device are arranged inside the box body; the device under test is placed in the high and low temperature box for testing;

[0020] A ground-open signal conversion circuit comprises a resistor, a ground-open signal input terminal and a high-low level signal output terminal; the ground-open signal input terminal and the high-low level signal output terminal are both connected to one end of the resistor, and the other end of the resistor is connected to a +5V power supply; when the ground-open signal input terminal inputs a ground signal, the resistor plays a circuit-breaking role, so that the high-low level signal outputs a low level; when the ground-open signal input terminal inputs an open signal, a +5V voltage is present between the high-low level signal output terminal and the other end of the resistor, and a high level is output;

[0021] The controller can communicate and control the device under test, the high and low temperature chamber, the data acquisition module, the switch system and the three-phase AC power supply; the three-phase AC power supply is used to power the device under test;

[0022] The multiplexing module is used to control the on and off of the power supply of multiple devices under test, switch the power supply channels, and time-share multiplex; the relay module is used to provide a ground-opening signal to the device under test;

[0023] The data acquisition module is used to collect the voltage analog signal and ground open signal output by the device under test.

[0024] A load resistor is also included. The load resistor is used to test the safety of the system and can stabilize the voltage and current of the system.

[0025] The controller communicates with the three-phase AC power supply via an RS422 interface.

[0026] The controller communicates with the device under test via a network port.

[0027] The description of different advantageous arrangements has been presented for purposes of illustration and description, but the description is not intended to be exclusive or limited to examples of the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. Additionally, different advantageous examples may describe different advantages over other advantageous examples. The selected example or examples are chosen and described in order to best illustrate the principles of the examples, the practical application, and to enable those of ordinary skill in the art to understand the disclosure with various examples with various modifications suitable for the particular use contemplated.

Claims

1. An anti-icing distribution box test system, characterized in that: It includes a controller, a multiplexing module, a relay module, a data acquisition module, a high and low temperature box, a three-phase AC power supply, a ground signal conversion circuit and a load resistance box; The high and low temperature box has a closed box body, and a heating device and a cooling device are arranged inside the box body; the device under test is placed in the high and low temperature box for testing; A ground-open signal conversion circuit comprises a resistor, a ground-open signal input terminal and a high-low level signal output terminal; the ground-open signal input terminal and the high-low level signal output terminal are both connected to one end of the resistor, and the other end of the resistor is connected to a +5V power supply; when the ground-open signal input terminal inputs a ground signal, the resistor plays a circuit-breaking role, so that the high-low level signal outputs a low level; when the ground-open signal input terminal inputs an open signal, a +5V voltage is present between the high-low level signal output terminal and the other end of the resistor, and a high level is output; The controller can communicate and control the device under test, the high and low temperature chamber, the data acquisition module, the switch system and the three-phase AC power supply; the three-phase AC power supply is used to power the device under test; The multiplexing module is used to control the on and off of the power supply of multiple devices under test, switch the power supply channels, and time-share multiplex; the relay module is used to provide a ground-opening signal to the device under test; The data acquisition module is used to collect the voltage analog signal and ground open signal output by the device under test.

2. The anti-icing distribution box test system according to claim 1, characterized in that: A load resistor is also included. The load resistor is used to test the safety of the system and can stabilize the voltage and current of the system.

3. The anti-icing distribution box test system according to claim 1, characterized in that: The controller communicates with the three-phase AC power supply via an RS422 interface.

4. The anti-icing distribution box test system according to claim 1, characterized in that: The controller communicates with the device under test via a network port.

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