CN215576201U

CN215576201U - IO monitored control system module testing arrangement

Info

Publication number: CN215576201U
Application number: CN202121604859.5U
Authority: CN
Inventors: 赵晓宏; 吴达
Original assignee: Neways Micro Electronics Wuxi Co ltd
Current assignee: Neways Micro Electronics Wuxi Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2022-01-18
Anticipated expiration: 2031-07-15

Abstract

The utility model provides a module testing device of an IO monitoring system, which can improve the testing efficiency and the testing quality. It includes: full function check gauge, constant voltage power supply, its characterized in that, it still includes integrated test box, integrated test box includes: the device comprises an analog signal input port, an analog signal output measurement port, an AI signal forwarding interface, an AO signal receiving interface, a DI signal forwarding interface, a DO signal receiving interface and a digital display screen; all ports to be tested of the module to be tested are connected through the integrated test box at the same time, and wiring is not needed to be conducted on each port on the module to be tested; and the integrated test box forwards the analog signal to the full-function calibrator to test an AI port and an AO port on the module to be tested.

Description

IO monitored control system module testing arrangement

Technical Field

The utility model relates to the technical field of electronic product detection, in particular to a module testing device of an IO monitoring system.

Background

The IO monitoring system module is a dedicated monitoring device for monitoring input and output signals of electronic devices, and can simultaneously monitor input and output signals of multiple electronic devices in the form of digital signals and analog signals. However, the IO monitoring system module itself needs to be tested after the production and assembly are completed, so as to ensure the usability of the device. In the prior art, when an IO monitoring system module is tested in a production line, a voltage-stabilized power supply, computer software, a universal meter and other tools are required to simulate digital-analog input and output signals, and then a test pen is used to contact an analog signal input port (hereinafter referred to as an AI port), an analog signal output port (hereinafter referred to as an AO port), a digital signal input port (hereinafter referred to as a DI port) and a digital signal output port (hereinafter referred to as a DO port) of the IO monitoring system module to be tested, so as to perform testing. In the testing process, when testing one port, the cable is required to be manually connected to each port, the operating instrument simulates a testing signal, and meanwhile, the testing pen is required to be held to respectively contact different digital-analog input/output ports of the module for testing, so that the overall testing speed is very low, the testing efficiency is low, errors are easily caused in manual testing, and in order to improve the efficiency and the testing quality, only testing personnel can be added, and the labor cost is increased.

Disclosure of Invention

The utility model provides a test device for an IO monitoring system module, which can improve the test efficiency and the test quality simultaneously, and aims to solve the problems that the test efficiency is low and errors are easy to occur in the test process when the IO monitoring system module is completely manually tested on a production line in the prior art.

The structure of the utility model is as follows: an IO monitoring system module testing device, comprising: full function check gauge, constant voltage power supply, its characterized in that, it still includes integrated test box, integrated test box includes: the device comprises an analog signal input port, an analog signal output measurement port, an AI signal forwarding interface, an AO signal receiving interface, a DI signal forwarding interface, a DO signal receiving interface and a digital display screen;

the stabilized voltage supply is connected with a power interface of the module to be tested;

an AI port, an AO port, a DI port and a DO port to be tested in the module to be tested are respectively connected with the AI signal forwarding interface, the AO signal receiving interface, the DI signal forwarding interface and the DO signal receiving interface through port lines;

an analog signal output port of the full-function calibrator is connected with the analog signal input port of the integrated test box, and an analog test signal is forwarded to the module to be tested through the AI signal forwarding interface;

an analog signal measuring port of the full-function calibrator is connected with an analog signal output measuring port of the integrated test box, and receives an analog signal fed back by the module to be tested based on the AO signal receiving interface;

the DO signal receiving interface and the DI signal forwarding interface are respectively connected with the digital display screen.

It is further characterized in that:

the controller is in communication connection with the module to be tested through a network cable, so that control and state monitoring of the module to be tested are realized;

in the integrated test box, each DI signal forwarding interface is provided with a DI channel control switch, and each DI signal forwarding interface is controlled to be communicated with a direct current power supply through the DI channel control switch;

each DO signal receiving interface is provided with a DO channel control switch, and the connection between each DO signal receiving interface and the input end of the digital display screen is controlled through the DO channel control switch;

each AI signal forwarding interface is provided with an AI channel control switch, and the communication between each AI signal forwarding interface and the analog signal input port is controlled through the AI channel control switch;

each AO signal receiving interface is provided with an AO channel control switch, and the communication between each AO signal receiving interface and the analog signal output measuring port is controlled through the AO channel control switch;

the integrated test box simultaneously supports the test of a 2-group AI signal forwarding interface, a 2-group AO signal receiving interface, a 4-group DI signal forwarding interface and a 4-group DO signal receiving interface.

According to the IO monitoring system module testing device, the integrated testing box is simultaneously connected with all the ports to be tested of the modules to be tested, wiring is not needed to be conducted on each port of the modules to be tested, testing procedures are saved, and testing efficiency is improved; the analog signal is forwarded to the full-function calibrator through the integrated test box, the test of an AI port and an AO port on a module to be tested is realized, the input values of a DI port and a DO port on the module to be tested are displayed through a digital display screen on the integrated test box, the test of a numerical value port is realized, each port is not required to be tested sequentially through a test pen, the test efficiency is improved, and the probability of test errors is reduced; the control switch is respectively arranged on each AI signal forwarding interface, each AO signal receiving interface, each DI signal forwarding interface and each DO signal receiving interface, each data channel is controlled through the control switch, multiple groups of numerical signals and analog signals can be tested simultaneously, and the testing efficiency is further improved.

Drawings

FIG. 1 is a schematic diagram of an overall structure of a structural IO monitoring system module testing device in the patent;

FIG. 2 is an electrical schematic embodiment of an integrated test cassette.

Detailed Description

As shown in fig. 1, the IO monitoring system module testing apparatus of the present invention includes: the system comprises an integrated test box 2, a full-function calibrator 3, a stabilized voltage power supply 4 and a controller 5, wherein the stabilized voltage power supply 4 is connected with a power interface of a module to be tested 1 and provides working power supply for the module to be tested; the controller 5 is connected with the module to be tested 1 through network cable communication, so that control and state monitoring of the module to be tested 1 are realized, when the controller 5 is realized specifically, the controller 5 is realized based on a desktop PC, a mobile PC and mobile communication equipment, and control software corresponding to the module to be tested 1 is installed on the controller 5, so that signal input and output control and state monitoring of the module to be tested 1 are realized; the full-function calibrator 3 is realized based on the existing calibrator and calibrator which can realize the functions of simulating and calibrating numerical signals and analog signals.

The integrated test cartridge 2 includes: analog signal input port 2-7, analog signal output measuring port 2-6, AO signal receiving interface 2-5, AO signal receiving interface, DI signal forwarding interface 2-3, DO signal receiving interface 2-2, digital display screen 2-1. An AI port 1-1, an AO port 1-2, a DI port 1-3 and a DO port 1-4 to be tested in a module 1 to be tested are respectively connected with an AI signal forwarding interface 2-4, an AO signal receiving interface 2-5, a DI signal forwarding interface 2-3 and a DO signal receiving interface 2-2 through port lines. An analog signal output port 3-2 of the full-function calibrator 3 is connected with an analog signal input port 2-7 of the integrated test box, and an analog test signal is forwarded to the module to be tested 1 through an AI signal forwarding interface 2-4; an analog signal measuring port 3-1 of the full-function check meter 3 is connected with an analog signal output measuring port 2-6 of the integrated test box, and receives an analog signal fed back by the module to be tested 1 based on an AO signal receiving interface 2-5. The DO signal receiving interface 2-2 and the DI signal forwarding interface 2-3 are respectively connected with the signal input end of the digital display screen 2-1.

In the integrated test box 2, a DI channel control switch 2-10 is arranged for each DI signal forwarding interface 2-3, and each DI signal forwarding interface 2-3 is controlled to be communicated with a power supply control switch of a direct current power supply VCC through the DI channel control switch 2-10;

a DO channel control switch 2-9 is arranged for each DO signal receiving interface 2-2, and the connection between each DO signal receiving interface 2-2 and the input end of the digital display screen 2-1 is controlled through the DO channel control switch 2-9;

an AI channel control switch 2-11 is arranged for each AI signal forwarding interface 2-4, and the communication between each AI signal forwarding interface 2-4 and the analog signal input port 2-7 is controlled through the AI channel control switch 2-11;

an AO channel control switch 2-8 is arranged for each AO signal receiving interface 2-5, and the communication between each AO signal receiving interface 2-5 and an analog signal output measuring port 2-6 is controlled through the AO channel control switch 2-8;

the default states of the DO channel control switch 2-9, the DI channel control switch 2-10, the AI channel control switch 2-11, and the AO channel control switch 2-8 are all off states.

As shown in fig. 2, one embodiment of an electrical schematic of the integrated test cassette 2; the integrated test box 2 in this embodiment simultaneously supports 2 groups of AI signal forwarding interfaces 2-4: AI1, AI2, 2-group AO signal receiving interface 2-5: AO1, AO2, 4 sets of DI signal forwarding interfaces 2-3: DI1~ DO4, 4 group DO signal reception interface 2-2: DO 1-DO 4. The 2 AI channel control switches 2-11 corresponding to the AI signal forwarding interfaces 2-4 are realized based on the two-pole switches SW1 and SW2, and the 2 AO channel control switches 2-8 corresponding to the AO signal receiving interfaces 2-5 are realized based on the two-pole switches SW3 and SW 4.

Wherein SW1, SW2 simultaneously control the communication of AI signal forwarding interfaces 2-4 and analog signal INPUT ports 2-7, wherein analog signal INPUT ports 2-7 are labeled INPUT in fig. 2; SW3, SW4 simultaneously control the communication of the AO signal receiving interface 2-5 and the analog signal output measurement port 2-6, where the analog signal output measurement port 2-6 is labeled as measure in FIG. 2.

The digital display screen 2-1 is realized based on an existing LED nixie tube, the digital display screen 2-1 is marked as an LED in figure 2, and a direct-current power supply VCC in the circuit is realized based on a double-pole switch SW5 for a corresponding power switch.

The DI signal forwarding interface DI1 is connected with pin 1 of KEY switch KEY1, the DI signal forwarding interface DI2 is connected with pin 1 of KEY switch KEY2, the DI signal forwarding interface DI3 is connected with pin 1 of KEY switch KEY3, and the DI signal forwarding interface DI4 is connected with pin 1 of KEY switch KEY 4; pin 2 of KEY1, pin 2 of KEY2, pin 2 of KEY3 and pin 2 of KEY4 are connected to pin 1 of power switch SW 5; the power interface of the LED is communicated with a pin 1 of a power switch SW 5; pin 2 of power switch SW5 is connected to power VCC; the DO signal receiving interface DO1 is connected with a pin 1 of the KEY switch KEY5, the DO signal receiving interface DO2 is connected with a pin 1 of the KEY switch KEY6, the DO signal receiving interface DO3 is connected with a pin 1 of the KEY switch KEY7, the DO signal receiving interface DO4 is connected with a pin 1 of the KEY switch KEY8, and after a pin 2 of the KEY switch KEY5, a pin 2 of the KEY switch KEY6, a pin 2 of the KEY switch KEY7 and a pin 2 of the KEY switch KEY8 are communicated with each other, the DO signal receiving interface DO1 is connected with a signal input end of the LED; the grounding of the LED is connected with GND.

An AI signal forwarding interface AI1 is connected with pin 2 of the AI channel control switch SW1, and an AI signal forwarding interface AI2 is connected with pin 2 of the AI channel control switch SW 2; the pin 1 of the AI path control switch SW1 and the pin 1 of the AI path control switch SW2 are connected to the analog signal INPUT port INPUT after being connected to each other.

The AO signal receiving interface AO1 is connected with pin 1 of an AO channel control switch SW3, and the AO signal receiving interface AO2 is connected with pin 1 of an AO channel control switch SW 4; and a pin 2 of the AO channel control switch SW3 and a pin 2 of the AO channel control switch SW4 are connected with each other and then connected with an analog signal output measurement end measure.

When the technical scheme of the utility model is used for testing, as shown in fig. 1, a module to be tested 1 is connected with an integrated test box 2, a full-function calibrator 3, a stabilized voltage power supply 4 and a controller 5.

Determining an AI port 1-1 of a module to be tested 1 to be tested, determining an AI data channel of the AI port to be tested 1-1 in the integrated test box 2, opening a corresponding AI channel control switch 2-11, and communicating an AI signal forwarding interface 2-4 connected with the AI port to be tested 1-1 with an analog signal input port 2-7;

sending out a test analog signal in a current mode through the full-function check meter 3, wherein the test analog signal is forwarded to an AI port 1-1 of the module to be tested 1 through an analog signal output port 3-2, an analog signal input port 2-7 and an AI signal forwarding interface 2-4; and observing the state display of the AI port 1-1 to be tested in the controller 5, and confirming whether the displayed current value is consistent with the current value of the test analog signal sent by the full-function check meter 3, thereby judging whether the AI port 1-1 to be tested works accurately.

Determining an AO port 1-2 of a module to be tested 1 to be tested, determining an AO data channel of the A O port 1-2 to be tested in the integrated test box 2, opening a corresponding AO channel control switch 2-8, and communicating an AO signal receiving interface 2-5 connected with the A O port 1-2 to be tested with an analog signal output measurement port 2-6;

the test analog signal of a current mode is sent out by control software of a module to be tested 1 installed in the controller 5, and the test analog signal is transmitted to the full-function check meter 3 through an A O port 1-2, an AO signal receiving interface 2-5 and an analog signal output measuring port 2-6; and observing the current measured value displayed in the full-function check meter 3, and confirming whether the displayed current value is consistent with the current value of the test analog signal sent by the controller 5, so as to judge whether the A O port 1-2 to be tested works accurately.

Determining DI ports 1-3 of a module to be tested 1 to be tested, determining DI data channels of the DI ports 1-3 to be tested in the integrated test box 2, opening corresponding DI channel control switches 2-10, and communicating the DI ports 1-3 to be tested with a direct current power supply VCC in the integrated test box 2; when the direct current power supply VCC is communicated with the DI port 1-3 to be tested, the state display of the DI port 1-3 to be tested in the controller 5 is observed, and whether the displayed voltage state is a high level or not is confirmed; if the voltage state corresponding to the DI port 1-3 displayed on the controller 5 is a high level, determining that the DI port 1-3 works accurately; and if the corresponding DI channel control switch 2-10 is disconnected, the DI port 1-3 is disconnected with the direct current power supply VCC, and if the voltage state corresponding to the DI port 1-3 displayed on the controller 5 is 0, the DI port 1-3 is determined to work accurately.

Determining a DO port 1-4 of a module to be tested 1 to be tested, determining a DO data channel of the DO port 1-4 to be tested in the integrated test box 2, opening a corresponding DO channel control switch 2-9, and communicating the DO port 1-4 to be tested with a digital display screen 2-1 in the integrated test box 2; the voltage of the DO port 1-4 to be tested is adjusted through the control software of the module to be tested 1 installed in the controller 5, the display of the digital display screen 2-1 is observed, and the voltage value displayed on the digital display screen 2-1 is consistent with the voltage value adjusted by the controller 5, so that the DO port 1-4 is indicated to work accurately.

Based on the technical scheme of the patent, an AI port 1-1, an AO port 1-2, a DI port 1-3 and a DO port 1-4 on a module to be tested 1 are tested, each port can be tested by a plurality of groups, and the switching among the ports is controlled by a control switch corresponding to the port; the possibility of errors caused by repeated wire plugging and wire disconnecting is avoided, the steps of manual operation are greatly saved, and the testing efficiency is improved; the digital display screen, the controller and the full-function calibrator 3 are used for confirming the test result, so that the test efficiency and the operation accuracy are further improved.

Claims

1. An IO monitoring system module testing device, comprising: full function check gauge, constant voltage power supply, its characterized in that, it still includes integrated test box, integrated test box includes: the device comprises an analog signal input port, an analog signal output measurement port, an AI signal forwarding interface, an AO signal receiving interface, a DI signal forwarding interface, a DO signal receiving interface and a digital display screen;

2. The IO monitoring system module testing device of claim 1, wherein: the controller is in communication connection with the module to be tested through a network cable, and control and state monitoring of the module to be tested are achieved.

3. The IO monitoring system module testing device of claim 1, wherein: in the integrated test box, each DI signal forwarding interface is provided with a DI channel control switch, and each DI signal forwarding interface is controlled to be communicated with a direct current power supply through the DI channel control switch;

and each AO signal receiving interface is provided with an AO channel control switch, and the communication between each AO signal receiving interface and the analog signal output measuring port is controlled through the AO channel control switch.

4. The IO monitoring system module testing device of claim 1, wherein: the integrated test box simultaneously supports the test of a 2-group AI signal forwarding interface, a 2-group AO signal receiving interface, a 4-group DI signal forwarding interface and a 4-group DO signal receiving interface.