CN208537600U - Portable blue-tooth oscilloprobe - Google Patents
Portable blue-tooth oscilloprobe Download PDFInfo
- Publication number
- CN208537600U CN208537600U CN201821196158.0U CN201821196158U CN208537600U CN 208537600 U CN208537600 U CN 208537600U CN 201821196158 U CN201821196158 U CN 201821196158U CN 208537600 U CN208537600 U CN 208537600U
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- China
- Prior art keywords
- chip microcontroller
- serial ports
- tooth
- oscilloprobe
- processing circuit
- 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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- 238000007781 pre-processing Methods 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 230000015654 memory Effects 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 238000004891 communication Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 229920002574 CR-39 Polymers 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 101700051609 ADC2 Proteins 0.000 description 2
- 230000001809 detectable Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 229920001276 Ammonium polyphosphate Polymers 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
Abstract
The utility model discloses a kind of portable blue-tooth oscilloprobes, it is related to oscillograph field, it needs to be inserted into headset plug for the prior art in the earphone jack of smart phone, therefore can be used only on mobile phone and cause operationally still because of conducting wire the reason of it is not convenient, additionally need configuration oscillography processing server, add additional the technical issues of resource increases cost, it is linked up with using detecting head and is connect with the input terminal of signal pre-processing circuit, the output end of signal pre-processing circuit and the analog-to-digital conversion interface of single-chip microcontroller connect, another interface of single-chip microcontroller is connect with bluetooth serial ports module, bluetooth serial ports module is connect by radio wave with display unit is received, signal pre-processing circuit, single-chip microcontroller and bluetooth serial ports module are electrically connected with built-in power respectively, reception display unit is the smart phone with Bluetooth receiving function, tablet computer Or the scheme of laptop, the program is small in size, does not need conducting wire connection, is convenient for carrying and tests.
Description
Technical field
The utility model relates to oscillograph field, in particular to a kind of portable blue-tooth oscilloprobe.
Background technique
Oscillograph is a kind of important instrument needed for the work such as correlative study, design, debugging, maintenance in terms of being engaged in appliance circuit
Device, but it is expensive, volume is big, heavier-weight, thus general fixed placement in particular place (such as laboratory), be not easy to
Body carries.And the staff in terms of some appliance circuits, it is often necessary in working site detection circuit signal, and to signal
Required precision is not high, but difficulty is, is not easy to the circuit board of target to dismantle and takes back laboratory, or dismantling itself
With regard to highly difficult.Application No. is the entitled wireless oscillographs based on smart phone of CN201520693175.5, disclose one kind and are based on
The wireless oscillograph of smart phone comprising oscilloprobe, oscillography processing server, ADC and headset plug, the ADC's
Signal input part is connect with the signal output end of the oscilloprobe, the signal output end of the ADC and the headset plug
Connection, the headset plug is inserted in the earphone jack of the smart phone, the smart phone by wireless network with it is described
The connection of oscillography processing server.When needing using oscillograph, headset plug 3 is inserted into the earphone jack 41 of smart phone 4,
And corresponding APP in smart phone 4 is opened, it is connected to smart phone 4 with oscillography processing server by wireless network, then leads to
The acquisition that oscilloprobe 1 carries out the analog signals such as voltage is crossed, is then transmit in ADC2, ADC2 converts analog signals into number
After word signal, be transmitted to it by the earpiece holes of smart phone 4 and handle chip and storage inside module, then by wireless module and
Wireless network is by digital data transmission to oscillography processing server, after oscillography processing server handles Digital Signal Analysis, leads to
It crosses wireless network to be back in smart phone 4, then data is shown by the mobile phone screen of smart phone 4.It is disclosed above
Although technology solves the problems, such as oscillograph volume big inconvenient to carry, but still also needs for headset plug to be inserted into intelligent hand
In the earphone jack of machine, thus cause operationally still because of conducting wire the reason of it is not convenient, additionally need configuration oscillography processing clothes
Business device, adds additional resource and increases cost.
Utility model content
The utility model provides a kind of portable blue-tooth oscilloprobe, needs to use headset plug to solve the prior art
Be inserted into the earphone jack of smart phone, thus can be used only on mobile phone and cause operationally still because of conducting wire the reason of it is inconvenient
Benefit additionally needs configuration oscillography processing server, adds additional the technical issues of resource increases cost.
It is realized to solve the above problems, the utility model adopts the following technical solution:
A kind of portable blue-tooth oscilloprobe, including detecting head hook, the detecting head hook and Signal Pretreatment electricity
The input terminal on road connects, and the output end of signal pre-processing circuit and the analog-to-digital conversion interface of single-chip microcontroller connect, and single-chip microcontroller is another to be connect
Mouth is connect with bluetooth serial ports module, and bluetooth serial ports module is connect by radio wave with display unit is received, and the signal is located in advance
Reason circuit, single-chip microcontroller and bluetooth serial ports module are electrically connected with built-in power respectively；
The reception display unit is smart phone, tablet computer or laptop with Bluetooth receiving function.
Preferably, further include shell, the signal pre-processing circuit, single-chip microcontroller, bluetooth serial ports are fixedly installed in shell
Module and built-in power；
Shell one end is fixedly installed the detecting head hook, and the shell other end is provided with charging socket, and surface of shell is set
It is equipped with power switch and driving switch；
Described charging socket one end is electrically connected with the built-in power.
Preferably, the single-chip microcontroller is STC12LE5A60S2, has been internally integrated 8 channel 10-bit high speed AD conversion, 60K
Bytes Flash program storage, 1280 byte RAM data memories.
Preferably, the built-in power is 3.7V, 500mAh lithium battery.
Preferably, the charging socket is microUSB socket.
The utility model integrates oscilloprobe, built-in power, single-chip microcontroller, Bluetooth communication modules etc., assembling
Cheng Yizhi pen type shape, the pocket that can be placed on clothing completely are carried, and detectable signal is that highest frequency is no more than
10KHz(period 0.1ms) low frequency signal；Can test cross, direct current signal, when using × 10 grades of deamplification, maximum voltage measurement
Reachable ± the 600V of range；About 10 meters of maximum wireless transmission range.User only needs to carry the product, then cooperates with bluetooth function
The display terminals such as mobile phone, tablet computer or the laptop of energy, so that it may detection circuit.It therefore to a certain extent can be with
Multimeter and oscillograph are substituted, the good tool of light current class staff is become.
Detailed description of the invention
Fig. 1 is embodiment general structure schematic diagram provided by the utility model；
Fig. 2 is embodiment circuit frame structural schematic diagram provided by the utility model；
Fig. 3 is embodiment circuit connection diagram provided by the utility model.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, implement below in conjunction with the utility model
Fig. 1 ~ 3 in example, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described reality
Applying example is the utility model a part of the embodiment, instead of all the embodiments.Usually it is described and illustrated herein in the accompanying drawings
The detailed description of the embodiments of the present invention is not intended to limit the range of claimed invention, but only table
Show the selected embodiment of the utility model.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, fall within the protection scope of the utility model.
As shown in Fig. 1 ~ 3, a kind of portable blue-tooth oscilloprobe, including shell 1 is fixedly installed signal in shell 1
Circuit, single-chip microcontroller, bluetooth serial ports module and built-in power are pre-processed, 1 one end of shell is fixedly installed detecting head and links up with 13 Hes
Wire clamp 14,1 other end of shell are provided with charging socket 10, and 1 surface of shell is provided with power switch 11 and driving switch 12, charging
10 one end of socket is electrically connected with built-in power.Detecting head hook 13 is connect with the input terminal of signal pre-processing circuit, and signal is located in advance
The analog-to-digital conversion interface of the output end and single-chip microcontroller of managing circuit connects, and another interface of single-chip microcontroller is connect with bluetooth serial ports module, blue
Tooth serial port module is connect by radio wave with display unit is received, signal pre-processing circuit, single-chip microcontroller and bluetooth serial ports mould
Block is electrically connected with built-in power respectively.Receive display unit be smart phone with Bluetooth receiving function, tablet computer or
Laptop.Wherein, single-chip microcontroller STC12LE5A60S2 has been internally integrated 8 channel 10-bit high speed AD conversion, 60K byte
Flash program memory, 1280 byte RAM data memories；Built-in power is 3.7V, 500mAh lithium battery；Charging socket 10
For microUSB socket.
As shown in figure 3, by probe in detecting measured signal, being sent into signal pre-processing circuit, signal is located in advance when circuit works
Manage electric routing resistance reduction voltage circuit (R1, R2, R3) and voltage follower (operational amplifier LM358) and x10 gear (10 times of amplification)
Switch K1 composition.If K1 is connected, the signal that can be measured only up to arrive 60V, through R2, R3 decompression, can drop to 3.3V with
It is interior, it is ensured that within Chip Microcomputer A/D conversion voltage range.If K1 is disconnected, reduction voltage circuit is added in R1, then signal ranges up to
600V.If the R5 of input signal ground terminal is adjusted to 1.65V, AD converter can measure the voltage of -1.65 ~+1.65V,
Correspondingly, probe can survey ac voltage signal ± 600V.The effect of LM358 amplifier is first is that raising input impedance, makes oscillograph
Marking into impedance is 1M Ω, reduces measured deviation, second is that limitation is input to the signal amplitude of single-chip microcontroller, protects the effect of single-chip microcontroller.
Single-chip microcontroller has selected STC12LE5A60S2, is a 3V high speed, low-power scm, instruction code completely compatible traditional 8051
Single-chip microcontroller has been internally integrated 8 channel 10-bit high speed AD conversion, 60K bytes Flash program storage, 1280 byte RAM datas
Memory, this makes peripheral circuit very succinct.In order to improve the order of accuarcy of communication baud rate, external 11.0592MHz has been used
Crystal oscillator.The P1.0 (ADC0) of single-chip microcontroller meets the voltage output of LM358, serial communication port P3.0 (RXD), the P3.1 of single-chip microcontroller
(TXD) serial ports of bluetooth module is connect.By writing SCM program, the every 50 μ s sampling of control AD converter is primary, samples in this way
Frequency can achieve 20KHz, and sampled value is converted to digital quantity, be sent to bluetooth serial ports module by microcontroller serial port.It is blue
Tooth serial port module key property: compatible bluetooth V2.0 specification, 2 standard of CLASS, transmission range is 10 meters maximum, supports SPP clothes
It is engaged in (serial ports), low-work voltage (3.3V), low-power consumption (< 50mA).Principal and subordinate can be changed by the AT instruction of bluetooth module itself to set
It sets, bluetooth module is set as after equipment, so that it may be connected with computer or Bluetooth of mobile phone, furthermore the communication baud rate of the module is silent
Recognizing is 9600bps, in order to improve real-time, need to accelerate communication speed, baud rate can be changed to 115200bps, default pairing
Password is 1234.The data that bluetooth module sends single-chip microcontroller become wireless signal and send.
In order to when small product size it is small easy to carry, built-in one piece of 3.7V, 500mAh lithium battery, cooperate charging management chip
And protection board, it can be charged by equipment such as external 5V phone charger or charger baby to this product through MicroUSB interface.The electricity
The voltage of pond output is 3.3V through three terminal regulator AS1117-33 decompression, steadily gives STC12LE5A60S2 single-chip microcontroller and HC06
Bluetooth serial ports module for power supply.
The detectable signal of the utility model is low frequency signal of the highest frequency no more than 10KHz(period 0.1ms)；It can survey
AC and DC signal, when using × 10 grades of deamplification, the reachable ± 600V of maximum voltage measurement range；Maximum wireless transmission range
About 10 meters.User only needs to carry this product, then cooperate mobile phone, tablet computer or laptop bluetooth-capable etc.
Display terminal, so that it may detection circuit.So it can substitute multimeter and oscillograph to a certain extent, become light current class
The good tool of staff.
Claims (5)
1. a kind of portable blue-tooth oscilloprobe, including detecting head hook (13), it is characterised in that: the detecting head hook
(13) it is connect with the input terminal of signal pre-processing circuit, the output end of signal pre-processing circuit and the analog-to-digital conversion interface of single-chip microcontroller
Connection, another interface of single-chip microcontroller are connect with bluetooth serial ports module, and bluetooth serial ports module is by radio wave and receives display unit
Connection, the signal pre-processing circuit, single-chip microcontroller and bluetooth serial ports module are electrically connected with built-in power respectively；
The reception display unit is smart phone, tablet computer or laptop with Bluetooth receiving function.
2. portable blue-tooth oscilloprobe according to claim 1, it is characterised in that:
Further include shell (1), be fixedly installed in shell (1) signal pre-processing circuit, single-chip microcontroller, bluetooth serial ports module with
And built-in power；
Shell (1) one end is fixedly installed the detecting head hook (13), and shell (1) other end is provided with charging socket (10),
Shell (1) surface is provided with power switch (11) and driving switch (12)；
Described charging socket (10) one end is electrically connected with the built-in power.
3. portable blue-tooth oscilloprobe according to claim 1, it is characterised in that:
The single-chip microcontroller is STC12LE5A60S2, has been internally integrated 8 channel 10-bit high speed AD conversion, 60K bytes Flash journey
Sequence memory, 1280 byte RAM data memories.
4. portable blue-tooth oscilloprobe according to claim 1, it is characterised in that:
The built-in power is 3.7V, 500mAh lithium battery.
5. portable blue-tooth oscilloprobe according to claim 2, it is characterised in that:
The charging socket (10) is microUSB socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821196158.0U CN208537600U (en) | 2018-07-26 | 2018-07-26 | Portable blue-tooth oscilloprobe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821196158.0U CN208537600U (en) | 2018-07-26 | 2018-07-26 | Portable blue-tooth oscilloprobe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208537600U true CN208537600U (en) | 2019-02-22 |
Family
ID=65385717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821196158.0U Expired - Fee Related CN208537600U (en) | 2018-07-26 | 2018-07-26 | Portable blue-tooth oscilloprobe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208537600U (en) |
-
2018
- 2018-07-26 CN CN201821196158.0U patent/CN208537600U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190222 Termination date: 20190726 |