CN214151421U - Digital quantity converter test equipment based on USB communication - Google Patents
Digital quantity converter test equipment based on USB communication Download PDFInfo
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- CN214151421U CN214151421U CN202022557629.XU CN202022557629U CN214151421U CN 214151421 U CN214151421 U CN 214151421U CN 202022557629 U CN202022557629 U CN 202022557629U CN 214151421 U CN214151421 U CN 214151421U
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Abstract
The utility model relates to a test equipment technical field, concretely relates to digital quantity converter test equipment based on USB communication. The device comprises a USB communication unit, a core control unit, a signal instruction unit, a data storage unit, an output control unit and a power supply and distribution unit. The utility model provides a current digital quantity converter test equipment need manual operation, the complicated technical problem of flow. The utility model discloses can realize through USB and host computer communication that signal instruction assigns and test data uploads, can resolve the test instruction that the execution host computer assigned, carry out according to the chronogenesis to gather, save test data passback host computer analysis.
Description
Technical Field
The utility model relates to a test equipment technical field, concretely relates to digital quantity converter test equipment based on USB communication.
Background
The digital converter is an important component of a remote measuring system of a carrier rocket, and has the function of outputting a shift pulse and a PCM signal according to a digital signal sent by a control system and a command word and code synchronous signal sent by a data synthesizer. The digital converter testing equipment is used as ground special testing equipment and is mainly used for debugging and unit testing in production of the digital converter on the rocket so as to test the performance of the digital converter. The traditional test mode is a manual test by professionals in a special experimental environment, an operator is required to be familiar with various experimental principles and parameter indexes, the operation threshold is high, and the traditional test mode is not suitable for product debugging and testers on a production line.
Disclosure of Invention
In order to overcome the not enough of current digital converter test equipment operation complicacy, the utility model provides a digital converter test equipment based on USB communication, the device realizes the instruction and the data interaction of embedded computer and data processing computer through USB communication unit, through host computer software simulation integrated function module, simplifies test operation, reduces the operation threshold.
The technical scheme of the utility model as follows:
a digital converter test device based on USB communication comprises a USB communication unit, a core control unit, a signal instruction unit, a data storage unit, an output control unit and a power supply and distribution unit; the input end of the core control unit is connected with the output end of the USB communication unit; the output end of the core control unit is connected with the input ends of the signal instruction unit, the data storage unit and the output control unit respectively, and the output end of the signal instruction unit is connected with the input end of the data storage unit; the output end of the data storage unit is connected with the input end of the output control unit, and the output end of the output control unit is connected with the input end of the USB communication unit.
The output end of the power supply and distribution unit is connected with the USB communication unit, the core control unit, the signal instruction unit and the output control unit.
The core control unit is communicated with an upper computer through a USB communication unit and adopts a system architecture based on FPGA.
The power supply and distribution unit consists of 2 AC-DC power supply modules.
The signal instruction unit is an analysis unit of an upper computer signal, and after receiving an instruction output by the core control unit, the signal instruction unit respectively analyzes the instruction into an uncharged/charged instruction signal, a code synchronization signal and a shift pulse signal.
The data storage unit is responsible for receiving, collecting and storing the data of the tested equipment.
The output control unit is positioned between the core control unit and the output of the USB communication unit, controls output content, format and time sequence, and transmits the output content, format and time sequence to the upper computer for data processing.
The signal instruction unit outputs to the single machine, and the single machine outputs to the data storage unit.
The beneficial effects of the utility model reside in that:
the utility model provides a digital converter test equipment based on USB communication can realize that signal instruction issues and test data uploads through USB interface and host computer communication. The test instruction issued by the upper computer can be analyzed and executed, the execution is carried out according to the time sequence, and the test data is collected and stored and then is transmitted back to the upper computer for analysis.
Drawings
Fig. 1 is a schematic circuit diagram of a digital converter testing device based on USB communication according to the present invention.
Fig. 2 is a USB communication unit interface circuit diagram of a digital converter testing device based on USB communication.
Fig. 3 is a working schematic diagram of a power supply and distribution unit of a digital converter testing device based on USB communication.
In the figure: 1. a USB communication unit; 2. a core control unit; 3. a signal instruction unit; 4. a data storage unit; 5. an output control unit; 6. and a power supply and distribution unit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in FIG. 1, the utility model relates to a digital converter test equipment based on USB communication, including USB communication unit 1, core control unit 2, signal command unit 3, data storage unit 4, output control unit 5, power supply and distribution unit 6. The core control unit 2 is communicated with an upper computer through the USB communication unit 1, is realized by adopting a system architecture based on the FPGA, analyzes data received by the USB communication unit into an instruction issued by the upper computer through built-in embedded software, and sequentially inputs the instruction into the signal instruction unit 3, the data storage unit 4 and the output control unit 5 according to a time sequence. The power supply and distribution unit 6 introduces the power supply of the ground power supply into the digital quantity distributor test equipment, and provides the power supply to each module and the cable network through the bus. The signal instruction unit 3 is an analysis unit of upper computer signals, and respectively analyzes the signals into uncharged/charged instruction signals, code synchronization signals, shift pulse signals and the like after receiving the instructions output by the core control unit 2, and the output end of the signal instruction unit is connected with the input end of the data storage unit 4. The data storage unit 4 is responsible for receiving, collecting and storing the data of the tested device, and the output end is connected with the input end of the output control unit 5. The output control unit 6 is positioned between the core control unit 2 and the USB communication unit output 1, and controls the output content, format, time sequence and the like to be transmitted to an upper computer for data processing.
As shown in fig. 2, an interface circuit of the USB communication unit is shown.
As shown in fig. 3, the working principle of the power supply and distribution unit is shown.
Claims (6)
1. A digital quantity converter test equipment based on USB communication is characterized in that: the system comprises a USB communication unit (1), a core control unit (2), a signal instruction unit (3), a data storage unit (4), an output control unit (5) and a power supply and distribution unit (6); the input end of the core control unit (2) is connected with the output end of the USB communication unit (1); the output end of the core control unit (2) is respectively connected with the input ends of the signal instruction unit (3), the data storage unit (4) and the output control unit (5), and the output end of the signal instruction unit (3) is connected with the input end of the data storage unit (4); the output end of the data storage unit (4) is connected with the input end of the output control unit (5), and the output end of the output control unit (5) is connected with the input end of the USB communication unit (1).
2. The digital quantity converter test device based on USB communication according to claim 1, wherein: the power supply and distribution unit (6) output end is connected with the USB communication unit (1), the core control unit (2), the signal instruction unit (3) and the output control unit (5).
3. The digital quantity converter test device based on USB communication according to claim 1, wherein: the core control unit (2) is communicated with the upper computer through the USB communication unit (1).
4. The digital quantity converter test device based on USB communication according to claim 1, wherein: the power supply and distribution unit (6) is composed of 2 AC-DC power supply modules.
5. The digital quantity converter test device based on USB communication according to claim 1, wherein: the data storage unit is responsible for receiving, collecting and storing the data of the tested equipment.
6. The digital quantity converter test device based on USB communication according to claim 1, wherein: the output control unit (5) is positioned between the core control unit (2) and the output of the USB communication unit (1), controls output content, format and time sequence, and transmits the output content, format and time sequence to the upper computer for data processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022557629.XU CN214151421U (en) | 2020-11-06 | 2020-11-06 | Digital quantity converter test equipment based on USB communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022557629.XU CN214151421U (en) | 2020-11-06 | 2020-11-06 | Digital quantity converter test equipment based on USB communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214151421U true CN214151421U (en) | 2021-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022557629.XU Active CN214151421U (en) | 2020-11-06 | 2020-11-06 | Digital quantity converter test equipment based on USB communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214151421U (en) |
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2020
- 2020-11-06 CN CN202022557629.XU patent/CN214151421U/en active Active
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