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Test setups and multi-line test systems

A test device and simulation test technology, applied in the direction of test/monitoring control system, general control system, control/regulation system, etc., can solve the problems of low reliability and low efficiency of multi-connected control boards, so as to avoid slow speed and improve The effect of testing efficiency

Active Publication Date: 2020-06-09
HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] This application provides a testing device and system to solve the technical problems of low efficiency and low reliability in the existing multi-line control panel testing

Method used

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  • Test setups and multi-line test systems
  • Test setups and multi-line test systems

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Embodiment Construction

[0013] The specific implementation manners of the present application will be described in further detail below in conjunction with the accompanying drawings.

[0014] The test device proposed in this application, such as figure 1 As shown, it includes a substrate 1 and a slave board 2; the substrate 1 includes a main control chip U1 and a substrate interface J1; the main control chip U1 includes a first test signal output port P11, P12, ..., P1N for outputting a first test signal and second test signal output ports P21, P22, . . . , P2M for outputting second test signals; wherein, N and M are both integers. The slave board 2 includes a slave board interface J2, a digital-to-analog conversion circuit U2, an analog test signal output interface J3, and a digital test signal output interface J4.

[0015] The first test signal output port P11, P12, ..., P1N and the second test signal output port P21, P22, ..., P2M are connected to the substrate interface J1; the slave board inter...

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Abstract

The present invention discloses a test device and a multi-split test system. The test device comprises a substrate and a slave plate; the substrate comprises a main control chip, a substrate interface and an analog-to-digital conversion circuit; the slave plate comprises a digital-analog conversion circuit, a simulation test signal sampling circuit, a simulation test signal output interface and a digital test signal output interface; first test signals outputted by the main control chip are converted to simulation test signals through the digital-analog conversion circuit of the slave plate, are output from the simulation test signal output interface to a test device, are subjected to sampling through the simulation test signal sampling circuit and then are transmitted back to the main control chip after the conversion through the analog-to-digital conversion circuit, and the main control chip performs compensation and calibration to provide accurate simulation test signals. Compared to the prior art, the application of a large-size rheostat is omitted, the test efficiency is improved, accurate simulation test signals can be provided through sampling, compensation and calibration of the simulation test signals, and the technical problems can be solved that a current multi-split control plate test is low in efficiency and low in reliability.

Description

technical field [0001] The invention belongs to the technical field of commercial air conditioners, and in particular relates to a multi-line testing device and system. Background technique [0002] Multi-connected, that is, multi-connected commercial air conditioners, refers to an air-conditioning system in which one outdoor unit or multiple outdoor units are connected to two or more indoor units through piping. The multi-connection control board has the characteristics of multiple temperature sensor signals (analog signals) and multiple control signals (switching signals). [0003] In the multi-line development stage, the software test of the multi-line control board is an important step to ensure the normal operation of the multi-line. Through software testing, problems in the development are found, so as to facilitate rectification and continue testing to finally meet the set requirements. In this step, it is necessary to simulate various temperature sensor signals and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
CPCG05B23/0256G05B2219/24065
Inventor 姜建伟刘清明胡滨
Owner HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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