CN209265225U - A kind of signal generating module - Google Patents
A kind of signal generating module Download PDFInfo
- Publication number
- CN209265225U CN209265225U CN201822239130.7U CN201822239130U CN209265225U CN 209265225 U CN209265225 U CN 209265225U CN 201822239130 U CN201822239130 U CN 201822239130U CN 209265225 U CN209265225 U CN 209265225U
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- Prior art keywords
- generating module
- signal generating
- signal
- analog converter
- filter circuit
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Abstract
The utility model relates to a kind of signal generating modules, belong to signal monitoring technical field.Specially a kind of signal generating module.To solve prior art problem, it includes industry serial port liquid crystal screen, ARM controller, digital analog converter, filter circuit and output end that the utility model, which provides a kind of signal generating module,.By ARM controller, digital analog converter under external field environment can sensor voltage signal that is quasi- and simulating the output of vehicle condition data, the vehicle condition abnormal failure that onbord computer terminal is shown quickly is positioned.
Description
Technical field
The utility model relates to for measurement and control area, and in particular to a kind of signal generating module.
Background technique
Under external field environment, vehicle the synthetical electronics information system is in vehicle condition data acquisition, onbord computer terminal
When showing vehicle condition data exception, need a kind of portable signal that each voltage signal sensor output of module simulation occurs, for fixed
The vehicle condition abnormal failure that position onbord computer terminal is shown.
Utility model content
(1) technical problems to be solved
Technical problem to be solved by the utility model is: how to provide one kind under the technological accumulation and inheritance of above-mentioned background technique
The vehicle condition abnormal failure that positioning vehicle-carried terminal is shown.
(2) technical solution
In order to solve the above technical problems, the utility model provides a kind of signal generating module, including industrial serial port liquid crystal screen,
ARM controller, digital analog converter and output end；
The ARM controller connects industrial serial port liquid crystal screen；
The digital analog converter connects ARM controller；
The digital analog converter connects operational amplifier；
The output end exports the analog signal.
Wherein:
The industry serial port liquid crystal screen receives externally input signal and forms control instruction；
Control instruction is formed corresponding digital signal by the ARM controller；
The digital signal is converted into analog signal by the digital analog converter；
The operational amplifier amplifies the analog signal.
The operational amplifier connection filter circuit is filtered the analog signal of amplification；Analog signal is exported to output
End.
The filter circuit is single order RC active filter circuit.
Signal generating module includes power-supply system, specially lithium battery.
The signal generating module further includes line style voltage-stablizer.
The digital analog converter is connected by spi bus and ARM controller.
(3) beneficial effect
The utility model have it is following the utility model has the advantages that compared with prior art, the utility model by ARM controller,
Digital analog converter can be quasi- under external field environment and simulates the sensor voltage signal that vehicle condition data export, to car-mounted computer end
The vehicle condition abnormal failure of end display is quickly positioned.
Detailed description of the invention
Fig. 1 is a kind of composition block diagram of signal generating module of the utility model attached drawing.
Specific embodiment
To keep the purpose of this utility model, content and advantage clearer, with reference to the accompanying drawings and examples, to this reality
It is described in further detail with novel specific embodiment.
In order to solve the above technical problems, the utility model provides a kind of signal generating module, as shown in Figure 1, including industry
Serial port liquid crystal screen, ARM controller, digital analog converter, operational amplifier and output end；
The ARM controller connects industrial serial port liquid crystal screen；
The digital analog converter connects ARM controller；
The digital analog converter connects operational amplifier；
The output end exports the analog signal.
Wherein:
The industry serial port liquid crystal screen receives externally input signal and forms control instruction；
Control instruction is formed corresponding digital signal by the ARM controller；
The digital signal is converted into analog signal by the digital analog converter；
The operational amplifier amplifies the analog signal.
The operational amplifier connection filter circuit is filtered the analog signal of amplification；Analog signal is exported to output
End.
The filter circuit is single order RC active filter circuit.
Signal generating module includes power-supply system, specially lithium battery.
The signal generating module further includes line style voltage-stablizer.
The digital analog converter is connected by spi bus and ARM controller.
Working principle:
Industrial serial port liquid crystal screen receives extraneous input signal formation control instruction and exports to ARM controller, ARM controller root
Corresponding digital signal is formed according to the control instruction of input, and analog signal transmission is converted into operation amplifier by digital analog converter
Device, operational amplifier are transmitted to filter circuit after amplifying analog signal and are filtered, and last filter circuit will be filtered
Analog signal output is to output end.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and deformations can also be made, these change
It also should be regarded as the protection scope of the utility model into deformation.
Claims (9)
1. a kind of signal generating module, which is characterized in that the signal generating module includes industrial serial port liquid crystal screen, ARM control
Device, digital analog converter, filter circuit, operational amplifier and output end；
Wherein:
The ARM controller is separately connected industrial serial port liquid crystal screen and digital analog converter；
The digital analog converter connects operational amplifier；
The operational amplifier connects filter circuit；
The filter circuit connects output end.
2. signal generating module as described in claim 1, which is characterized in that the industry serial port liquid crystal screen receives external input
Signal formed control instruction；
Control instruction is formed corresponding digital signal by the ARM controller；
The digital signal is converted into analog signal by the digital analog converter.
3. signal generating module as claimed in claim 2, it is characterised in that the operational amplifier, by the analog signal into
Row amplification.
4. signal generating module as described in claim 1, which is characterized in that the filter circuit is single order RC active power filtering electricity
Road.
5. signal generating module as claimed in claim 4, which is characterized in that the filter circuit to the analog signal of amplification into
Row filtering, output analog signal to output end.
6. signal generating module as described in claim 1, it is characterised in that the signal generating module includes power-supply system.
7. signal generating module as described in claim 1, it is characterised in that the signal generating module includes line style voltage-stablizer.
8. signal generating module as claimed in claim 6, it is characterised in that the power-supply system is lithium battery.
9. signal generating module as described in claim 1, it is characterised in that the digital analog converter by spi bus connection with
ARM controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239130.7U CN209265225U (en) | 2018-12-28 | 2018-12-28 | A kind of signal generating module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239130.7U CN209265225U (en) | 2018-12-28 | 2018-12-28 | A kind of signal generating module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209265225U true CN209265225U (en) | 2019-08-16 |
Family
ID=67583877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822239130.7U Active CN209265225U (en) | 2018-12-28 | 2018-12-28 | A kind of signal generating module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209265225U (en) |
-
2018
- 2018-12-28 CN CN201822239130.7U patent/CN209265225U/en active Active
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