CN210958572U - Display switching system of test instrument - Google Patents
Display switching system of test instrument Download PDFInfo
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- CN210958572U CN210958572U CN201921815948.7U CN201921815948U CN210958572U CN 210958572 U CN210958572 U CN 210958572U CN 201921815948 U CN201921815948 U CN 201921815948U CN 210958572 U CN210958572 U CN 210958572U
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Abstract
An embodiment of the utility model provides a test instrument's demonstration switched systems, include: a main display; a wireless video switching device connected with the main display; the wireless video switching device displays the operation interface of one selected test instrument in the plurality of test instruments on the main display according to the received switching instruction. The utility model discloses a scheme can realize long-range video source selection and the switching that carries out test instrument.
Description
Technical Field
The utility model relates to a thing networking field especially indicates a test instrument's display switching system.
Background
In the research and development test process of the products of the internet of things, various test devices or instruments are needed to be used for different types of products, and testers need to operate and observe various devices such as a direct-current power supply, a comprehensive tester, a signal generator, a network analyzer and the like at the same time. Because the equipment is generally large in size, the size of the screen and the display effect are different, and the operation personnel are inconvenient to observe and record more parameters. When a certain product is tested, the testing time is usually long, and the control of an instrument, the recording of data and the observation of data are usually low in efficiency under the condition that a tester cannot be in place in real time.
In the prior art, there are few systems for display switching and control of various test instruments; video switching equipment used in the system is common, most of the video switching equipment is switched in a manual mode, and the video switching equipment is inconvenient and cannot be remotely controlled in a wireless mode.
Through a general analysis comparing the general procedures of the prior art and similar patents, the prior art has the following main disadvantages:
1. at present, there is no system that supports both display switching and remote control of a test instrument.
2. The current video switching device is not suitable for the scenes that research and development personnel carry out tests in a laboratory.
3. The switching mode of the current video switching device is mostly keys, infrared or Bluetooth, the applicable distance is short, and the device is not suitable for remote switching.
SUMMERY OF THE UTILITY MODEL
The utility model provides a test instrument's demonstration switched systems. Therefore, video source selection and switching of the testing instrument can be remotely performed.
In order to solve the above technical problem, an embodiment of the present invention provides the following solutions:
a display switching system for a test instrument, comprising:
a main display;
a wireless video switching device connected with the main display;
the wireless video switching device displays the operation interface of one selected test instrument in the plurality of test instruments on the main display according to the received switching instruction.
Optionally, the display switching system of the test instrument further includes: a cloud platform in communicative connection with the plurality of test instruments;
and the wireless video switching device receives a switching instruction sent by the terminal through the cloud platform.
Optionally, the wireless video switching apparatus includes: a master controller); the wireless communication module and the key matrix are respectively connected with the main controller; and the main controller analyzes the switching instruction received by the wireless communication module or the switching instruction triggered by the key matrix.
Optionally, the wireless video switching apparatus further includes: the light emitting diode LED matrix and the analog switch matrix are connected with the main controller;
the analog switch matrix is also connected with a plurality of video graphic array VGA input interfaces and a VGA output interface, one VGA input interface is connected with one test instrument, the wireless video switching device is connected with the main display through the VGA output interface, and the LED matrix displays the currently selected test instrument.
Optionally, the analog switch matrix includes a plurality of analog switch chips, receives the switching command of the main controller, and selects the output VGA signal according to the switching command.
Optionally, the wireless video switching apparatus further includes: and the power supply module is respectively connected with the main controller, the wireless communication module, the key matrix, the LED matrix and the analog switch matrix.
Optionally, the display switching system of the testing apparatus further includes: a portal hub connected to the plurality of test instruments; a local computer connected to the portal hub; and a remote computer communicatively coupled to the local computer.
The above technical scheme of the utility model at least include following beneficial effect:
the utility model adopts the scheme that the display is displayed; a wireless video switching device connected with the main display; the wireless video switching device displays the operation interface of one selected test instrument in the plurality of test instruments on the main display according to the received switching instruction, so that the video source selection and switching of the test instruments can be remotely performed.
Drawings
FIG. 1 is a schematic diagram of a display switching system of a test instrument according to the present invention;
fig. 2 is a schematic diagram illustrating an architecture of a wireless video switching device in a display switching system of a testing apparatus according to the present invention;
fig. 3 is a schematic view of the video switching display process of the display switching system of the testing apparatus of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1, an embodiment of the present invention provides a display switching system of a testing apparatus, including: a main display 1; a wireless video switching device 2 connected to the main display 1; and the wireless video switching device 2 displays an operation interface of a selected test instrument in the plurality of test instruments 3 on the main display 1 according to the received switching instruction. Therefore, video source selection and switching of the test instrument can be remotely carried out according to the switching instruction.
The utility model discloses an in the optional embodiment, the display switching system of test instrument can also include: a cloud platform 7 communicatively connected to the plurality of test instruments 3; and the wireless video switching device 2 receives a switching instruction sent by the terminal 8 through the cloud platform 7.
As shown in fig. 2, in an optional embodiment of the present invention, the wireless video switching device 2 includes: a main controller 21; a wireless communication module 22 and a key matrix 23 respectively connected with the main controller 21; the main controller 21 analyzes the switching command received by the wireless communication module 22 or the switching command triggered by the key matrix 23.
Optionally, the wireless video switching apparatus 2 may further include: a Light Emitting Diode (LED) matrix 24 and an analog switch matrix 26 connected to the main controller 21; the analog switch matrix 26 is further connected with a plurality of video graphic array VGA input interfaces 25 and a VGA output interface 27, one VGA input interface is connected with one test instrument, the wireless video switching device 2 is connected with the main display 1 through the VGA output interface 27, and the light emitting diode LED matrix 24 displays the currently selected test instrument.
Optionally, the analog switch matrix 26 includes a plurality of analog switch chips, receives the switching command of the main controller 21, and selects the output VGA signal according to the switching command.
As shown in fig. 2, in an optional embodiment of the present invention, the wireless video switching device 2 may further include: and the power supply module 28 is respectively connected with the main controller 21, the wireless communication module 22, the key matrix 23, the LED matrix 24 and the analog switch matrix 26.
As shown in fig. 1, in an optional embodiment of the present invention, the display switching system of the testing apparatus may further include: a portal hub 4 connected to the plurality of test instruments 3; a local computer 5 connected to the portal hub 4; and a remote computer 6 communicatively coupled to the local computer 5.
As shown in fig. 3, for the process of video switching display, the terminal selects the test instrument 3 to be displayed through a video switching program, the cloud platform 7 receives the switching instruction and then performs storage and forwarding, the wireless communication module 22 receives the switching instruction and then sends the switching instruction to the main controller 21 through a UART (universal asynchronous receiver transmitter) interface, the main controller 21 parses the instruction, the analog switch matrix 26 is controlled through an IO port to output the video signal of the selected test instrument, and the main display 1 receives the signal through a VGA line to perform display.
The remote instrument control part mainly comprises a test instrument, a network port concentrator 4, a local computer 5 and a remote computer 6. Each test instrument 3 is connected with a network port concentrator 4 through a network cable, the network port concentrator 4 is connected to a local computer 5 through a network cable, and the local computer is provided with independently developed remote control software (a local end) and allocates an IP address to each test instrument; the remote computer 6 is provided with remote control software (client), selects the allocated IP address and controls the instrument. When remote control is carried out, the local computer is ensured to open the remote control software, and an IP address is already allocated to the instrument.
The utility model discloses an above-mentioned embodiment test instrument's demonstration switched systems, by main display 1, wireless video auto-change over device 2, test instrument 3, net gape concentrator 4, local computer 5 (the local end remote control software of installation), distal end computer 6 (the installation customer end remote control software), cloud platform 7, terminal 8 (the video of installation switches software) and constitutes. Wherein, the main display 1 is used for displaying an equipment operation interface; the wireless video switching device 2 is configured to receive a switching instruction, and implement switching of multiple device operation interfaces, and further, the main controller 21 may be configured to receive and analyze a switching instruction sent by a communication module or a switching instruction triggered by a key matrix by using an STM32F030R8T6, and complete control of an analog switch matrix, thereby completing control of VGA output; the wireless communication module 22 adopts a 4G module M8321 or a wifi module ESP8266-12H, and is used for receiving a video switching instruction sent by the cloud platform and sending the instruction to the main controller 21 through a UART interface; the key matrix 23 adopts N (N <8) light touch keys, corresponding to different VGA input interfaces, when a key is pressed down, the main controller detects the key interruption, and then controls the corresponding instrument to output video to the main display 1, for selecting the video display device through the key; the LED matrix 24 adopts N (N <8) LEDs corresponding to different VGA input interfaces, and when the video output is switched to a certain instrument for video output, the main controller 21 controls the corresponding LEDs to be lightened for indicating the current display equipment; the VGA input interface 25 adopts N (N <8) VGA female connector, and is used for connecting a test instrument through a VGA transmission line; the analog switch matrix 26 is constructed by a chip CH440G, the input signals of the chip are seven R/G/B/SDA/H/V/SCL signals input by VGA, the control signal is IO output of the main controller, the main controller 21 controls the output of each chip through an IO port after receiving a switching instruction, so as to control the selection of the video signal and transmit the selected signal to the VGA output interface 27, the VGA input interface 25 is composed of a plurality of analog switch chips and is used for receiving the control command of the main controller and selecting the output VGA signal; the VGA output interface 27 adopts 1 VGA female connector, is connected to the main display 1 through a VGA transmission line, and finishes the output of the selected video signal; the power supply module 28 is composed of a plurality of LDOs (low dropout regulators), the power supply input is 5V, and the power supply module directly supplies power to the analog switch chip; 3.8V is output after passing through the LDO1, and power is supplied to the 4G module; the output voltage is 3.3V after passing through the LDO2 and is used for supplying power to each functional module; the testing instrument 3 is used for experimental testing and supports various instruments to be connected to the VGA input interface of the wireless video switching device through VGA lines; the network port concentrator 4 is used for concentrating network cables of various instruments and realizing multi-path input and single-path output; the local computer 5 is used for connecting the internet and installing local remote control software; the remote computer 6 is used for connecting the internet, installing remote control software of a client and realizing the control of a remote instrument interface; the cloud platform 7 is used for storing and forwarding the video switching instruction uploaded by the communication terminal; and the terminal 8 is used for installing a video switching program and selecting video switching of the test instrument through the program.
The above embodiment of the utility model is suitable for the laboratory debugging test environment, especially for the scene with more instruments and equipment, and the tester can debug the specific instrument through remote control and display switching; the system can be beneficial to system joint debugging and data monitoring and is suitable for scenes that testing personnel are not in place; the system uses the mobile phone program to select and switch the video source, which is very convenient. The system can switch the projection of various test instrument operation interfaces on the main display through video switching software (a mobile phone APP or an applet), is convenient to operate, and improves the efficiency of observing and recording data by testers; meanwhile, the system utilizes remote control software to realize remote operation of various testing instruments, solves the problem that testing personnel cannot operate the instruments in place in real time, and simultaneously provides convenience for remote joint debugging.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A display switching system for a test instrument, comprising:
a main display (1);
a wireless video switching device (2) connected to the main display (1);
the wireless video switching device (2) displays an operation interface of a selected test instrument in the plurality of test instruments (3) on the main display (1) according to the received switching instruction.
2. The display switching system of a test instrument of claim 1, further comprising: a cloud platform (7) communicatively connected to the plurality of test instruments (3);
and the wireless video switching device (2) receives a switching instruction sent by the terminal (8) through the cloud platform (7).
3. The display switching system of a test instrument according to claim 1, wherein the wireless video switching device (2) comprises: a main controller (21); the wireless communication module (22) and the key matrix (23) are respectively connected with the main controller (21); the main controller (21) analyzes a switching instruction received through the wireless communication module (22) or a switching instruction triggered by the key matrix (23).
4. The display switching system of a test instrument according to claim 3, wherein the wireless video switching device (2) further comprises:
a light emitting diode, LED, matrix (24) and an analog switch matrix (26) connected to the master controller (21);
the analog switch matrix (26) is further connected with a plurality of video graphic array VGA input interfaces (25) and a VGA output interface (27), one VGA input interface is connected with one test instrument, the wireless video switching device (2) is connected with the main display (1) through the VGA output interface (27), and the LED matrix (24) displays the currently selected test instrument.
5. The display switching system of a test instrument according to claim 4, wherein the analog switch matrix (26) includes a plurality of analog switch chips, receives a switching command from the main controller (21), and selects the VGA signal to be output according to the switching command.
6. The display switching system of a test instrument according to claim 4, wherein the wireless video switching device (2) further comprises:
and the power supply module (28) is respectively connected with the main controller (21), the wireless communication module (22), the key matrix (23), the LED matrix (24) and the analog switch matrix (26).
7. The display switching system of a test instrument of claim 2, further comprising: a portal hub (4) connected to the plurality of test instruments (3);
a local computer (5) connected to the portal hub (4); and
a remote computer (6) communicatively connected to the local computer (5).
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| CN201921815948.7U CN210958572U (en) | 2019-10-25 | 2019-10-25 | Display switching system of test instrument |
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| CN201921815948.7U CN210958572U (en) | 2019-10-25 | 2019-10-25 | Display switching system of test instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112946383A (en) * | 2021-01-27 | 2021-06-11 | 广州路派电子科技有限公司 | Normal-temperature normal-power-output-level aging system and construction method for product |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112946383A (en) * | 2021-01-27 | 2021-06-11 | 广州路派电子科技有限公司 | Normal-temperature normal-power-output-level aging system and construction method for product |
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