CN216086678U

CN216086678U - Automatic testing arrangement of intelligent terminal based on ethernet

Info

Publication number: CN216086678U
Application number: CN202121548407.XU
Authority: CN
Inventors: 陈晓森
Original assignee: Zhuhai Miaocun Technology Co ltd
Current assignee: Zhuhai Miaocun Technology Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2022-03-18
Anticipated expiration: 2031-07-08

Abstract

The embodiment of the utility model discloses an intelligent terminal automatic testing device based on Ethernet, which comprises: the serial port communication module comprises an Ethernet switch and a plurality of Ethernet-to-UART interface circuits; the Ethernet switch is connected with the Ethernet-to-UART interface circuit through a network cable; the Ethernet-to-UART interface circuits are integrated on a core circuit board. The embodiment of the utility model can improve the product testing efficiency and the automation level.

Description

Automatic testing arrangement of intelligent terminal based on ethernet

Technical Field

The utility model relates to an automatic testing device, in particular to an intelligent terminal automatic testing device based on an Ethernet.

Background

Currently, most intelligent terminal product tests need to communicate through the UART ports of the intelligent terminal product, and the PC does not have a universal UART interface. Therefore, most of the existing products adopt a level conversion chip such as PL2302 to convert USB port to UART, so as to realize communication with the intelligent terminal, and thus test the intelligent terminal product through the USB interface on the PC, which has the following disadvantages:

1. wiring is complex, each terminal needs a power line and a USB-to-UART line, and thus testing of a plurality of products is obviously inconvenient;

2. the occupied PC interfaces are multiple, and multiple USB interfaces are needed during the test of multiple products, so that the communication is easy to be unstable;

3. the power supply efficiency of the power supply is low, the automatic control of the on-off of the power supply cannot be realized, and potential safety hazards exist when a plurality of power lines exist.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the intelligent terminal automatic testing device based on the Ethernet, which can simplify the test set-up and test operation of intelligent terminal products, test a plurality of UART interface communication products through one line of the PC end, and improve the product test efficiency and the automation level.

The automatic testing device of the intelligent terminal based on the Ethernet comprises: the serial port communication module comprises an Ethernet switch and a plurality of Ethernet-to-UART interface circuits; the Ethernet switch is connected with the Ethernet-to-UART interface circuit through a network cable; the Ethernet-to-UART interface circuits are integrated on a core circuit board.

The intelligent terminal automatic testing device based on the Ethernet of the embodiment of the utility model at least has the following beneficial effects: the utility model discloses this paper utility model embodiment's intelligent terminal automatic testing arrangement based on ethernet through improving present common UART implementation method, has designed the UART testing arrangement based on ethernet, has simplified intelligent terminal product test greatly and has built and test the operation, has done PC end root line, just can test the product of a plurality of UART interface communications, has promoted product test efficiency and automatic level.

According to some embodiments of the present invention, the core circuit board integrates 7 of the ethernet to UART interface circuits.

According to some embodiments of the present invention, the ethernet-to-UART interface circuit includes an ethernet interface module, a USR-ED2 module, and an output module, the ethernet interface module is connected to the USR-ED2 module, and the USR-ED2 module is connected to the output module.

According to some embodiments of the present invention, the USR-ED2 module is a USR-TCP232-ED2 module, and is configured to implement bidirectional transmission of data from a serial port to an ethernet port, and includes three pins for serial port transmission and three pins for serial port reception, and is configured to generate a three-way UART signal.

According to some embodiments of the utility model, the apparatus further comprises a USB ethernet adapter for connecting the USB port of the PC with the network port of the ethernet switch.

According to some embodiments of the present invention, the output module includes a first MOS transistor and a second MOS transistor, the first MOS transistor is connected to the UART input signal of the USR-ED2 module, and the second MOS transistor is connected to the UART output signal of the USR-ED2 module.

According to some embodiments of the utility model, the output module is used for connecting a prototype to be tested and transmitting UART signals.

According to some embodiments of the utility model, the apparatus further comprises: the power supply module comprises a fuse, a switch power supply and a programmable power supply on-off control circuit.

According to some embodiments of the utility model, the power supply module further comprises a filter circuit; the switch is a relay and is used for controlling the output of the power supply; the fuse is connected with an output pin of the relay and used for short-circuit protection; the switching power supply is used for outputting a 12V direct current power supply; the filter circuit comprises a first capacitor and a second capacitor and is used for filtering; and the programmable power supply on-off control circuit is connected with the filter circuit and is used for multi-path output power supply.

According to some embodiments of the utility model, the apparatus further comprises: and the power line is used for connecting an external 220 alternating current commercial power supply.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a block diagram of modules of an embodiment of the utility model.

Fig. 2 is a schematic diagram of an internal structure and connection of a serial communication module according to an embodiment of the present invention.

Fig. 3 is a circuit diagram of an ethernet to UART interface according to an embodiment of the present invention.

Fig. 4 is a schematic diagram illustrating an internal structure and connection of a power supply module according to an embodiment of the utility model.

Fig. 5 is a schematic diagram of a power control circuit, a short-circuit protection circuit and a filter circuit according to an embodiment of the utility model.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, the intelligent terminal automatic testing device based on the ethernet according to the embodiment of the present invention includes a serial communication module. The intelligent automatic testing device provided by the embodiment of the utility model realizes 1-to-many communication between the PC and the testing terminal through two steps. The first step is as follows: and converting the USB into an Ethernet interface, and connecting the USB with the core circuit board through a switch. The second step is that: the function of converting the output Ethernet signal into a UART output signal is realized by utilizing an Ethernet-to-UART interface circuit designed by an Ethernet-to-UART module. Finally, only one USB is needed to be converted into the Ethernet wire, so that the test of a plurality of test terminals can be realized only by occupying 1 USB interface of the PC, and the test is really simple and convenient to realize.

In some embodiments, the intelligent automatic testing device of the embodiments of the present invention may further provide a plurality of power supplies for the testing device through the power supply module, and the power supply is controlled by the switch, and the fuse protects the power supply and outputs the power supply to the testing device after filtering. The multi-path power supply of the power supply module can be controlled by the programmable power supply on-off control circuit.

According to the embodiment of the utility model, by improving the common UART implementation method at present, the UART testing device based on the Ethernet is designed, so that the test set-up and test operation of intelligent terminal products are greatly simplified, a PC end is made to be one line, a plurality of UART interface communication products can be tested, and the product testing efficiency and the automation level are improved. The embodiment of the utility model also solves the technical problems that the power supply efficiency of the power supply is low, the automatic control of the on-off of the power supply cannot be realized, and the potential safety hazard exists when more power lines exist.

Referring to fig. 2, the serial port communication module according to the embodiment of the present invention includes an ethernet switch and a plurality of core circuit boards of an ethernet to UART interface circuit; the Ethernet switch is connected with the Ethernet-to-UART interface circuit through a network cable; all Ethernet-to-UART interface circuits are integrated on a core circuit board. In this embodiment, the core circuit board integrates 7 ethernet to UART interface circuits. The embodiment enables seven network cables to be changed into one through the switch, and greatly simplifies the wiring outside the case. The whole core circuit board can be controlled by only one wire outside.

With further reference to fig. 3, the ethernet to UART interface circuit according to the embodiment of the present invention includes an ethernet interface module, a USR-ED2 module and an output module, where the ethernet interface module is connected to the USR-ED2 module, and the USR-ED2 module is connected to the output module. The USR-ED2 module is a USR-TCP232-ED2 module, is used for realizing bidirectional transmission of data from a serial port to an Ethernet port, and comprises three pins for serial port transmission and three pins for serial port reception, and is used for generating three paths of UART signals. As shown in fig. 3, the network cable is connected to the circuit board through an ethernet interface RJ 45A. In the circuit board, the circuit of the RJ45A is connected to the USR-ED2, i.e. the ethernet-to-UART module, and outputs UART signals, and finally, the UART signals are output through the J13 and provided to peripheral devices to be tested.

In this embodiment, one ethernet to UART interface circuit can generate 3 UART signals, and seven ethernet to UART interface circuits are integrated on one core circuit board, so this embodiment can generate 20 UART signals.

In some embodiments, the apparatus of the embodiments of the present invention further includes a USB ethernet adaptor for connecting the USB port of the PC with the network port of the ethernet switch.

In some embodiments, the output module according to the embodiments of the present invention includes a first MOS transistor and a second MOS transistor, the first MOS transistor is connected to the UART input signal of the USR-ED2 module, and the second MOS transistor is connected to the UART output signal of the USR-ED2 module. The output module of the embodiment of the utility model is used for connecting a prototype to be tested and transmitting UART signals.

Referring to fig. 4, the power supply module of the embodiment of the utility model includes a fuse, a switch, a switching power supply and a programmable power supply on-off control circuit. With further reference to fig. 5, the switch of the present embodiment is a relay for controlling the power output; the fuse is connected with an output pin of the relay and used for short-circuit protection; the switching power supply is used for outputting a 12V direct current power supply; the filter circuit comprises a first capacitor and a second capacitor and is used for filtering; and the programmable power supply on-off control circuit is connected with the filter circuit and is used for multi-path output power supply. This embodiment is capable of providing up to 10 power supplies. 220V alternating current commercial power is provided for the automatic testing case from the outside through a power line, the commercial power is input to a switching power supply in the case after passing through a fuse and a switch, the switching power supply outputs 12V stable direct current power, and the direct current power is output to an external sample machine to be tested through a filter circuit on a PCB. Meanwhile, the power supply module can be controlled by software, and can control the power-on or power-off of the power supply module through serial port communication access, so that a hardware basis is provided for realizing automatic intelligent test.

Although specific embodiments have been described herein, those of ordinary skill in the art will recognize that many other modifications or alternative embodiments are equally within the scope of this disclosure. For example, any of the functions and/or processing capabilities described in connection with a particular device or component may be performed by any other device or component. In addition, while various illustrative implementations and architectures have been described in accordance with embodiments of the present disclosure, those of ordinary skill in the art will recognize that many other modifications of the illustrative implementations and architectures described herein are also within the scope of the present disclosure.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. The utility model provides an automatic testing arrangement of intelligent terminal based on ethernet which characterized in that includes:

the serial port communication module comprises an Ethernet switch and a plurality of Ethernet-to-UART interface circuits;

the Ethernet switch is connected with the Ethernet-to-UART interface circuit through a network cable;

the Ethernet-to-UART interface circuits are integrated on a core circuit board.

2. The intelligent terminal automation test device based on ethernet according to claim 1, wherein the core circuit board integrates 7 ethernet to UART interface circuits.

3. The automatic testing device for intelligent Ethernet-based terminals according to any one of claims 1 or 2, wherein the Ethernet-to-UART interface circuit comprises an Ethernet interface module, a USR-ED2 module and an output module, the Ethernet interface module is connected with the USR-ED2 module, and the USR-ED2 module is connected with the output module.

4. The Ethernet-based intelligent terminal automatic testing device according to claim 3, wherein the USR-ED2 module is a USR-TCP232-ED2 module for realizing bidirectional transmission of data from a serial port to an Ethernet port, and comprises three pins for serial port transmission and three pins for serial port reception, and is used for generating three-way UART signals.

5. The intelligent terminal automation test device based on Ethernet of claim 1, wherein the device further comprises a USB Ethernet adapter for connecting a USB port of a PC with a network port of the Ethernet switch.

6. The automatic testing device for intelligent terminals based on Ethernet according to claim 3, wherein the output module comprises a first MOS transistor and a second MOS transistor, the first MOS transistor is connected to the UART input signal of the USR-ED2 module, the second MOS transistor is connected to the UART output signal of the USR-ED2 module.

7. The automatic testing device of the intelligent terminal based on the Ethernet as claimed in claim 3, wherein the output module is used for connecting a prototype to be tested and transmitting UART signals.

8. The intelligent terminal automation testing device based on ethernet of claim 1, wherein the device further comprises: the power supply module comprises a fuse, a switch power supply and a programmable power supply on-off control circuit.

9. The intelligent terminal automation testing device based on ethernet of claim 8, wherein the power supply module further comprises a filter circuit;

the switch is a relay and is used for controlling the output of the power supply;

the fuse is connected with an output pin of the relay and used for short-circuit protection;

the switching power supply is used for outputting a 12V direct current power supply;

the filter circuit comprises a first capacitor and a second capacitor and is used for filtering;

and the programmable power supply on-off control circuit is connected with the filter circuit and is used for multi-path output power supply.

10. The intelligent terminal automation testing device based on ethernet of claim 1, wherein the device further comprises: and the power line is used for connecting an external 220 alternating current commercial power supply.