CN215067767U - Multi-channel signal switching device - Google Patents
Multi-channel signal switching device Download PDFInfo
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- CN215067767U CN215067767U CN202121718746.8U CN202121718746U CN215067767U CN 215067767 U CN215067767 U CN 215067767U CN 202121718746 U CN202121718746 U CN 202121718746U CN 215067767 U CN215067767 U CN 215067767U
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Abstract
The utility model discloses a multichannel signal auto-change over device, include: the device comprises a signal input module, a signal control module, a signal switching module and a signal output module. The signal input module is connected with an external signal to realize signal ground input. The signal control module is respectively in signal connection with the signal input module and the signal switching module, and receives the control signal input by the signal input module, converts the control signal into a switching signal and outputs the switching signal. The signal switching module is in signal connection with the signal input module, the signal control module and the signal output module respectively, receives the switching signal, receives the transmission signal input by the signal input module, and outputs the transmission signal to the signal output module according to the input of the switching signal. The utility model discloses can pass through simple line to use singlechip and relay to realize automatic or manually signal switching, realize the function of signal switching output, avoided redesign, realize with low costs, liberation hand labor power.
Description
Technical Field
The utility model belongs to electron product test field especially relates to a multichannel signal auto-change over device.
Background
In the field of electronic product tests and production, a scene of testing multiple paths of signals one by one exists, and in the prior art, manual switching is mainly relied on, so that the defects of low efficiency are more obvious along with the increase of the number of products. Although the industrial personal computer board card with multi-channel switching is available in the market, the industrial personal computer board card is generally expensive, and the cost performance is not high in the product prototype development stage and the small batch stage.
SUMMERY OF THE UTILITY MODEL
The technical purpose of the utility model is to provide a multichannel signal auto-change over device, include: the device comprises a signal input module, a signal control module, a signal switching module and a signal output module. The signal input module is used for being connected with an external signal to realize signal ground input. The signal control module is respectively in signal connection with the signal input module and the signal switching module, and the signal control module is used for receiving the control signal input by the signal input module, converting the control signal into a switching signal and outputting the switching signal. The signal switching module is in signal connection with the signal input module, the signal control module and the signal output module respectively, and the signal switching module is used for receiving a switching signal, receiving a transmission signal input through the signal input module, and outputting the transmission signal to the signal output module according to the input of the switching signal.
The signal switching module comprises a plurality of relays, and the corresponding relays receive the transmission signals according to the switching signals.
The relay comprises a control end, a common end and a normally open end. The control end is in signal connection with the signal control module and is used for receiving the switching signal to control whether the corresponding relay is conducted or not. The common terminal is in signal connection with the signal input module and is used for receiving transmission signals. The normally open end is in signal connection with the signal output module and is used for outputting transmission signals.
Specifically, the common ends of the relays are in one-to-one signal connection with the channels of the signal input module. The normally open ends of the relays are in signal connection and are in signal connection with the signal output module. The control ends of the relays are mutually independent.
The signal input module comprises a control signal connector and a signal input connector, the control signal connector is used for transmitting a control signal to the signal control module, and the signal input connector is used for transmitting a transmission signal to the signal switching module.
Specifically, the signal control module adopts a single chip microcomputer and is used for receiving the control signal, converting the control signal into a switching signal and outputting the switching signal.
The number of switchable signals of the signal control module is equal to the number of the relays.
Specifically, the signal output module is a signal output connector and is configured to receive the transmission signal output by the signal switching module and output the transmission signal to the outside.
Further preferably, still include the casing, signal input module and signal output module all locate on the casing, and the casing is used for realizing that external signal and inside signal are kept apart.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
the utility model discloses can pass through simple line to use singlechip and relay to realize automatic or manually signal switching, realize the function of signal switching output, avoided redesign, realize with low costs, liberation hand labor power.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.
Fig. 1 is a schematic diagram of a multi-path signal switching device according to the present invention;
fig. 2 is a schematic front view of a multi-path signal switching apparatus according to the present invention;
fig. 3 is a schematic internal top view of the multi-path signal switching device of the present invention.
Description of attached matter
1: a signal input connector; 2: a control signal connector; 3: a signal output connector; 4: a front panel; 5: a relay; 6: a single chip microcomputer; 7: a base plate; 8: a power supply input terminal.
Detailed Description
In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
The following describes a multi-path signal switching device according to the present invention in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims.
Examples
Referring to fig. 1, the present embodiment provides a multi-path signal switching apparatus, which mainly includes four modules, namely a signal input module, a signal control module, a signal switching module and a signal output module. The signal input module provides an interface for connecting the embodiment with the outside to realize signal input, and selects the input multi-channel signals in the embodiment so as to output a specific one-channel or multi-channel combined signal at a specific time. The signal control module is respectively in signal connection with the signal input module and the signal switching module, receives the control signal input by the signal input module, converts the control signal into a switching signal and outputs the switching signal to the signal switching module. The signal switching module is in signal connection with the signal input module, the signal control module and the signal output module respectively, receives the switching signal, executes corresponding operation according to the switching signal, namely selects the transmission signal input and received from the signal input module, and then outputs the transmission signal to the outside after transmitting the transmission signal to the signal output module.
The respective modules will now be described
First, the present embodiment preferably has a housing, and the modules are mounted on the surface or inside of the housing, and the shape of the housing is not limited too much, and preferably, the housing has a rectangular prism structure in the present embodiment. Specifically, referring to fig. 1 and 2, a signal input module and a signal output module are disposed on the front panel 4 of the housing to isolate internal signals and external signals inside and outside the housing from each other.
Referring to fig. 1 and 2, the signal input module includes a control signal connector 2 and a signal input connector 1, wherein the control signal connector 2 is used for transmitting a control signal to the signal control module, and the signal input connector 1 is used for transmitting a transmission signal to the signal switching module. Specifically, a cable is provided to be connected to the control signal connector 2 and the signal input connector 1 in a mating manner, and the cable is used for transmitting signals. The signal input module provides a shell internal interface and a shell external interface, and is convenient for practical use. In this embodiment, the control signal connector 2 can receive multiple control signals simultaneously, and the signal input connector 1 can receive multiple transmission signals simultaneously, where the multiple signals are collected and then connected to the inside.
Referring to fig. 1 and 2, the signal output module is a signal output connector 3, which can receive the transmission signal output by the signal switching module and output the transmission signal to the outside, and is also provided with a cable for matching connection, as can be seen from fig. 1, the inner cable and the outer cable of the connection output connector are both single-path signals.
Referring to fig. 1, 2 and 3, the signal control module adopts a single chip microcomputer 6, in this embodiment, the model of the single chip microcomputer 6 adopts C8051, but not limited thereto, and the signal control module is fixed inside the housing and connected to the bottom plate 7, receives a serial port signal, i.e., a control signal, from an upper computer, and converts the serial port signal into a high-low level, i.e., a switching signal, of an IO port of the single chip microcomputer 6. The control end of each relay 5 in the signal switching module is connected to the IO port of the single chip microcomputer 6, so that the single chip microcomputer 6 can control the conduction of each relay 5.
Referring to fig. 1, 2 and 3, in the present embodiment, the signal switching module includes a plurality of relays 5 fixed inside the housing and connected to the bottom plate 7. The signal switching module switches on the corresponding relay 5 according to the switching signal, and receives the transmission signal. Specifically, each relay 5 has a control terminal, a common terminal, a normally open terminal, and a normally closed terminal.
The plurality of channel signals of the signal input module are connected to the common terminal of each relay 5 module one by one, so as to receive the transmission signal. The normally open ends of all the relays 5 are connected with each other and signal-connected with the signal output module, and output transmission signals to the outside as the final signal output end of the signal switching module. The control end of the relay is in signal connection with the signal control module, the corresponding relay 5 is controlled to be switched on or not by receiving the switching signal, the number of the relays 5 is equal to that of the switchable signals of the signal control module, namely, control signal transmission lines among the relays 5 are mutually independent. When one relay 5 is conducted, the signal at the common end of the relay 5 is connected to the normally open end, and the switching output of the signal is realized.
Referring to fig. 3, the present embodiment further includes a power input terminal 8 for connecting an external power source to provide power support for the present embodiment.
The utility model discloses mainly used multichannel signal switches, earlier is the power during use, input signal, control signal, output signal are connected to corresponding interface or port on this embodiment respectively. Starting an upper computer program, and selecting a manual working mode or an automatic working mode, wherein different configuration files need to be loaded in the automatic working mode. In the manual working mode, after the signal needing to be conducted is selected in the upper computer program interface, the upper computer sends an instruction to the signal control module and converts the instruction into a gating command of a certain relay 5. After the corresponding relay 5 is switched on, a signal on the common end of the relay 5 is communicated with the normally open end, so that the function of switching and outputting the signal is realized. When the next point needs to be tested, the program resets the originally conducted relay 5 module, and then selects the relay 5 of the new test point. Under the automatic working mode, the upper computer program automatically sends a switching command, and automatic switching of multiple signals can be realized.
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. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (9)
1. A multiple signal switching apparatus, comprising: the device comprises a signal input module, a signal control module, a signal switching module and a signal output module;
the signal input module is used for being connected with an external signal to realize signal ground input;
the signal control module is in signal connection with the signal input module and the signal switching module respectively, and is used for receiving the control signal input by the signal input module, converting the control signal into a switching signal and outputting the switching signal;
the signal switching module is in signal connection with the signal input module, the signal control module and the signal output module respectively, and is used for receiving the switching signal, receiving the transmission signal input by the signal input module, and outputting the transmission signal to the signal output module according to the input of the switching signal.
2. The multi-signal switching device of claim 1, wherein the signal switching modules comprise a plurality of relays, and the signal switching modules receive the transmission signals according to the switching signals corresponding to the relays.
3. The multiple signal switching device of claim 2, wherein the relay includes a control terminal, a common terminal, and a normally-open terminal;
the control end is in signal connection with the signal control module and is used for receiving the switching signal to control whether the corresponding relay is conducted or not;
the public end is in signal connection with the signal input module and is used for receiving the transmission signal;
the normally open end is in signal connection with the signal output module and is used for outputting the transmission signal.
4. The multi-signal switching device of claim 3, wherein the common terminals of the relays are in one-to-one signal connection with the channels of the signal input module;
the normally open ends of the relays are in signal connection and are in signal connection with the signal output module;
the control ends of the relays are mutually independent.
5. The multiple signal switching apparatus according to claim 1, wherein the signal input module comprises a control signal connector and a signal input connector, the control signal connector is configured to transmit the control signal to the signal control module, and the signal input connector is configured to transmit the transmission signal to the signal switching module.
6. The multi-channel signal switching device according to claim 2, wherein the signal control module employs a single chip microcomputer, and is configured to receive the control signal, convert the control signal into the switching signal, and output the switching signal.
7. The multi-signal switching device of claim 6, wherein the number of switchable signals of the signal control module is equal to the number of relays.
8. The multi-signal switching device of claim 1, wherein the signal output module is a signal output connector for receiving the transmission signal output by the signal switching module and outputting the transmission signal to the outside.
9. The multi-signal switching device of claim 1, further comprising a housing, wherein the signal input module and the signal output module are both disposed on the housing, and the housing is configured to isolate an external signal from an internal signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121718746.8U CN215067767U (en) | 2021-07-27 | 2021-07-27 | Multi-channel signal switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121718746.8U CN215067767U (en) | 2021-07-27 | 2021-07-27 | Multi-channel signal switching device |
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| Publication Number | Publication Date |
|---|---|
| CN215067767U true CN215067767U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121718746.8U Active CN215067767U (en) | 2021-07-27 | 2021-07-27 | Multi-channel signal switching device |
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| CN (1) | CN215067767U (en) |
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2021
- 2021-07-27 CN CN202121718746.8U patent/CN215067767U/en active Active
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