CN202002971U - Digital voltmeter - Google Patents
Digital voltmeter Download PDFInfo
- Publication number
- CN202002971U CN202002971U CN 201120015909 CN201120015909U CN202002971U CN 202002971 U CN202002971 U CN 202002971U CN 201120015909 CN201120015909 CN 201120015909 CN 201120015909 U CN201120015909 U CN 201120015909U CN 202002971 U CN202002971 U CN 202002971U
- Authority
- CN
- China
- Prior art keywords
- cpu
- wireless transceiver
- digital voltmeter
- module
- signal acquisition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a digital voltmeter which comprises a CPU (Central Processing Unit), a signal acquisition module, a display, a reset circuit and a wireless transceiver, wherein the signal acquisition module is connected with I/O ports of the CPU by an A/D (analog to digital) module, the display is connected with a group of I/O ports of the CPU, the wireless transceiver is connected with an SPI (Serial Peripheral Interface) of the CPU, and the reset circuit is connected with the I/O ports of the CPU. For the digital voltmeter, while the digital voltmeter passes by the signal acquisition module passes through the A/D module, then is displayed by the CPU and passes a display module, wireless data transmission can be conducted on data by the wireless transceiver, thus being convenient for people to conduct real-time detection and recording on the data, and bringing great convenience for the people to use.
Description
Technical field
The utility model relates to a kind of electronic experiment equipment, relates in particular to a kind of digital voltmeter.
Background technology
In people's life, digital voltmeter utilizes analog-to-digital conversion principle measuring voltage value as electronic experiment equipment comparatively commonly used, and shows the instrument of measurement result with digital form.But existing digital voltmeter does not have the function of wireless transmission, and the data of measurement can not be passed through computing machine or other multimedia equipment records timely, has brought great inconvenience for people's use.
Bluetooth is the radiotelegraphy of a kind of support equipment short haul connection (in the general 10m).Can comprise that carrying out wireless messages between numerous equipment such as mobile phone, PDA, wireless headset, notebook computer, relevant peripheral hardware exchanges.Utilize " bluetooth " technology, can simplify the communication between the mobile communication terminal device effectively, also communicating by letter between simplified apparatus and the Internet Internet successfully, thus data transmission becomes more rapidly efficiently, is the radio communication widening road.
The utility model content
At the problem that above-mentioned prior art exists, the utility model provides a kind of digital voltmeter.
To achieve these goals, the technical solution adopted in the utility model is: a kind of digital voltmeter, comprise CPU, signal acquisition module and display, described signal acquisition module links to each other with the I/O mouth of CPU by the A/D module, described display links to each other with one group of I/O mouth of CPU, also comprise reset circuit and wireless transceiver, described wireless transceiver links to each other with the SPI interface of CPU, and described reset circuit links to each other with the I/O mouth of CPU.
As preferably, described wireless transceiver is a bluetooth wireless transceiver, also comprises the adapter with wireless device coupling.
As preferably, described adapter is a Bluetooth adapter.
As preferably, described display screen is an antireflection formula LCDs.
Compared with prior art, advantage of the present utility model is: pass through the A/D module again when CPU shows with display module by signal acquisition module, data can also be carried out wireless data transmission by wireless transceiver, be convenient for people to data are detected and record in real time, bring great convenience for people's use.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an example structure synoptic diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As a kind of embodiment of the present utility model, consult Fig. 1 and Fig. 2, the utility model comprises CPU, signal acquisition module and display, described signal acquisition module links to each other with the I/O mouth of CPU by the A/D module, the voltage transition that needs are detected is that digital signal is handled through CPU, described display links to each other with one group of I/O mouth of CPU, the detected data of CPU are shown timely, also comprise reset circuit and wireless transceiver, described wireless transceiver links to each other with the SPI interface of CPU, data can also be carried out wireless data transmission by wireless transceiver, be convenient for people to data are detected and record in real time, described reset circuit links to each other with the I/O mouth of CPU, can reset by reset circuit.
Described wireless transceiver is a bluetooth wireless transceiver, also comprises the adapter with wireless device coupling.Described adapter is a Bluetooth adapter.The experimental data that measures can be carried out radio communication through bluetooth wireless transceiver and Bluetooth adapter, Bluetooth adapter can be applied to computing machine and other multimedia equipments, so more timely experimental data is handled and is analyzed.Described display screen is an antireflection formula LCDs.Be convenient for people under the stronger environment of light, use.Greatly facilitate people.
Claims (4)
1. digital voltmeter, comprise CPU, signal acquisition module and display, described signal acquisition module links to each other with the I/O mouth of CPU by the A/D module, described display links to each other with one group of I/O mouth of CPU, it is characterized in that: also comprise reset circuit and wireless transceiver, described wireless transceiver links to each other with the SPI interface of CPU, and described reset circuit links to each other with the I/O mouth of CPU.
2. digital voltmeter according to claim 1 is characterized in that: described wireless transceiver is a bluetooth wireless transceiver, also comprises the adapter with wireless device coupling.
3. digital voltmeter according to claim 1 is characterized in that: described adapter is a Bluetooth adapter.
4. digital voltmeter according to claim 1 is characterized in that: described display screen is an antireflection formula LCDs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120015909 CN202002971U (en) | 2011-01-11 | 2011-01-11 | Digital voltmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120015909 CN202002971U (en) | 2011-01-11 | 2011-01-11 | Digital voltmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202002971U true CN202002971U (en) | 2011-10-05 |
Family
ID=44705708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120015909 Expired - Fee Related CN202002971U (en) | 2011-01-11 | 2011-01-11 | Digital voltmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202002971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467199A (en) * | 2015-12-10 | 2016-04-06 | 榆林学院 | High precision wireless DC voltage monitoring device |
-
2011
- 2011-01-11 CN CN 201120015909 patent/CN202002971U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467199A (en) * | 2015-12-10 | 2016-04-06 | 榆林学院 | High precision wireless DC voltage monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20120111 |